GRAVITY ROTATION DEVICE
20200049133 ยท 2020-02-13
Assignee
Inventors
Cpc classification
F03G3/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16H1/28
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
Abstract
A gravity rotary device including a first disk having a central axis; a peripheral axis of rotation arranged at a distance from and parallel to the central axis; a peripheral rotary shaft suitable for turning about the peripheral axis of rotation; and a mass support mounted on the peripheral rotary shaft and having a mass suitable for being moved away from the rotary shaft in order to produce torque causing the rotary shaft and the first disk to pivot. The device also includes a reduction gearing arranged between the peripheral rotary shaft and the first disk; a means for fastening at least a portion of the reduction gearing in a stationary position in order to prevent it from turning about the peripheral axis of rotation; a freewheel arranged on the peripheral rotary shaft; and means for modifying the angle of inclination of a mass support on the peripheral rotary shaft.
Claims
1. A gravity rotary device comprising: a first disk comprising: a central axis about which the first disk is capable of turning; and at least one peripheral axis of rotation arranged at a distance from and parallel to the central axis; at least one peripheral rotary shaft arranged at a distance from the central axis of the first disk, and suitable for turning about the peripheral axis of rotation, parallel to the central axis, and coupled to the first disk; and a motor connected to the peripheral rotary shaft, to cause the peripheral rotary shaft to rotate about the peripheral axis of rotation; at least one mass support mounted on the peripheral rotary shaft and having a mass suitable for being moved away from the rotary shaft in order to produce torque causing the rotary shaft and consequently the first disk to pivot; reduction gearing for reduction from the first disk to the mass support, the gearing being arranged between the peripheral rotary shaft and the first disk, the gearing comprising a rotary inlet part connected to the peripheral rotary shaft and a rotary outlet part connected to the first disk, the rotary inlet and outlet parts being on the same axis, the reduction gearing enabling the rotation of the peripheral rotary shaft to be transmitted to the first disk; means for fastening at least a portion of the reduction gearing in a stationary position in order to prevent the reduction gearing from turning about the peripheral axis of rotation; a freewheel arranged on the peripheral rotary shaft; means for modifying the angle of inclination of the mass support on the peripheral rotary shaft relative to the horizontal passing through the peripheral axis of rotation of the shaft; and means for resetting the device.
2. The device according to claim 1, wherein: the reduction gearing further comprises: a peripheral ring connected to the rotary inlet part; an outlet gear connected to the rotary outlet part; and at least one planet gear arranged between the peripheral ring and the outlet gear; and the means for fastening at least a portion of the reduction gearing further comprises planet carriers fastened to the planet gears and locking parts fastened to the planet carriers.
3. The device according to claim 1, further comprising a second disk suitable for turning about a central axis and coupled to the first disk so that rotation of the first disk entrains rotation of the second disk; the means for fastening the portion of the reduction gearing being coupled to the second disk.
4. The device according to claim 3, wherein the central axis of the second disk is off-center relative to the central axis of the first disk.
5. The device according to claim 1, comprising: at least two peripheral rotary shafts, each being arranged at substantially the same distance from the central axis of the first disk and having a peripheral axis of rotation parallel to the central axis, coupled to the first disk, and angularly equidistant relative to the center of the first disk; and at least two mass supports, each mounted on a peripheral rotary shaft and having a mass suitable for being moved away from the peripheral rotary shaft in order to produce torque causing the peripheral rotary shaft, and consequently the first disk, to rotate.
6. The device according to claim 3, wherein: the first disk includes a central rotary shaft; and the second disk includes a central rotary shaft; the central rotary shafts being connected together by a connection part.
7. The device according to claim 6, further comprising a support element connected to the central rotary shaft of the second disk while enabling the first disk and the second disk to turn.
8. The device according to claim 1, further comprising a third disk arranged facing the first disk, suitable for turning about the central axis of the first disk, and supporting one end of the at least one peripheral rotary shaft.
9. The device according to claim 1, wherein the means for modifying the angle comprises: an internal cam having a guide surface and arranged on the first disk; and a follower wheel arranged on an inner surface of a mass support and suitable for coming into contact with the guide surface of the cam during rotation of the first disk in order to guide the rotation of the mass support in the direction opposite to the direction of rotation of the first disk, by virtue of the freewheel, and in order to change the angle of inclination of the mass support.
10. The device according to claim 1, wherein the means for modifying the angle comprises: at least one external cam arranged facing the outer end of a mass support and including a guide surface; and a follower wheel arranged on an outer surface of a mass support and suitable for coming into contact with the guide surface of the cam during rotation of the first disk in order to guide the rotation of the mass support in the direction opposite to the direction of rotation of the first disk, by virtue of the freewheel and in order to change the angle of inclination of the mass support.
11. The device according to claim 1, wherein the mass support comprises two plates of triangular shape that are arranged at a distance apart from each other and in parallel planes, the plates being connected to each other by longitudinal support elements, with the top sides of the plates having rails; and wherein a mass-carrier bar is supported at its two ends by the rails and is suitable for moving along a direction along the top sides of the plates.
12. The device according to claim 11, wherein each of the rails of the mass support includes a plurality of electromagnetic chocks suitable for rising in order to block movement of the mass-carrier bar and for lowering in order to allow the mass-carrier bar to move along the top sides of the plates.
13. A method of rotating a gravity rotation device according to claim 1, the method comprising the steps of: moving the mass of the mass support away from the peripheral rotary shaft in order to produce torque causing the peripheral rotary shaft to pivot and consequently causing the first disk to pivot; and modifying the angle of inclination of the mass support on the peripheral rotary shaft relative to the horizontal passing through the peripheral axis of rotation of the shaft.
14. A method of assembling a gravity rotation device according to claim 1, the method comprising the steps of: mounting the first disk comprising: the central axis about which the first disk is capable of turning; and the at least one peripheral axis of rotation arranged at the distance from and parallel to the central axis; mounting the at least one peripheral rotary shaft arranged at the distance from the central axis of the first disk, and suitable for turning about the peripheral axis of rotation, parallel to the central axis, and coupled to the first disk; mounting the motor on the peripheral rotary shaft, to cause the peripheral rotary shaft to rotate about the peripheral axis of rotation; mounting the reduction gearing for reduction from the first disk to the mass support, the gearing being mounted between the peripheral rotary shaft and the first disk, the reduction gearing comprising the rotary inlet part connected to the peripheral rotary shaft and a rotary outlet part connected to the first disk, the rotary inlet and outlet parts being on the same axis, the reduction gearing enabling the rotation of the peripheral rotary shaft to be transmitted to the first disk; mounting the means for fastening at least the portion of the reduction gearing in the stationary position in order to prevent the reduction gearing from turning about the peripheral axis of rotation; mounting the freewheel on the peripheral rotary shaft; mounting the at least one mass support on the peripheral rotary shaft, the mass support having the mass suitable for being moved away from the rotary shaft in order to produce torque causing the rotary shaft to pivot; mounting the means for modifying the angle of inclination of the mass support on the peripheral rotary shaft relative to the horizontal passing through the peripheral axis of rotation of the shaft; and mounting the means for resetting the device.
15. A gravity rotary device comprising: a first disk comprising: a central axis about which the first disk is capable of turning; and at least one peripheral axis of rotation arranged at a distance from and parallel to the central axis; at least one peripheral rotary shaft arranged at a distance from the central axis of the first disk, and suitable for turning about the peripheral axis of rotation, parallel to the central axis, and coupled to the first disk; and at least one mass support mounted on the peripheral rotary shaft and having a mass suitable for being moved away from the rotary shaft in order to produce torque causing the rotary shaft and consequently the first disk to pivot; a reduction gearing for reduction from the first disk to the mass support, the gearing being arranged between the peripheral rotary shaft and the first disk, the gearing comprising a rotary inlet part connected to the peripheral rotary shaft and a rotary outlet part connected to the first disk, the rotary inlet and outlet parts being on the same axis, the reduction gearing enabling the rotation of the peripheral rotary shaft to be transmitted to the first disk; means for fastening at least a portion of the reduction gearing in a stationary position in order to prevent it from turning about the peripheral axis of rotation; a freewheel arranged on the peripheral rotary shaft; and means for modifying the angle of inclination of a mass support on the peripheral rotary shaft relative to the horizontal passing through the peripheral axis of rotation of the shaft; wherein the means for modifying the angle comprises: at least one external cam arranged facing the outer end of a mass support and including a guide surface; a follower wheel arranged on an outer surface of a mass support and suitable for coming into contact with the guide surface of the cam during rotation of the first disk in order to guide the rotation of the mass support in the direction opposite to the direction of rotation of the first disk, by virtue of the freewheel and in order to change the angle of inclination of the mass support; a motor connected to the external cam and suitable for driving the cam in rotation about an axis of rotation of the cam in the same direction as the direction of rotation of the first disk; and means for resetting the device.
16. A method of assembling a gravity rotation device, the method comprising the steps of: mounting a first disk comprising: a central axis about which the first disk is capable of turning; and at least one peripheral axis of rotation arranged at a distance from and parallel to the central axis; mounting at least one peripheral rotary shaft arranged at a distance from the central axis of the first disk, and suitable for turning about the peripheral axis of rotation, parallel to the central axis, and coupled to the first disk; mounting a motor on the peripheral rotary shaft, to cause the peripheral rotary shaft to rotate about the peripheral axis of rotation; mounting a reduction gearing for reduction from the first disk to the mass support, the gearing being mounted between the peripheral rotary shaft and the first disk, the reduction gearing comprising a rotary inlet part connected to the peripheral rotary shaft and a rotary outlet part connected to the first disk, the rotary inlet and outlet parts being on the same axis, the reduction gearing enabling the rotation of the peripheral rotary shaft to be transmitted to the first disk; mounting a means for fastening at least a portion of the reduction gearing in a stationary position in order to prevent the reduction gearing from turning about the peripheral axis of rotation; mounting a freewheel on the peripheral rotary shaft; mounting at least one mass support on the peripheral rotary shaft, the mass support having a mass suitable for being moved away from the rotary shaft in order to produce torque causing the rotary shaft to pivot; and mounting a means for modifying the angle of inclination of the mass support on the peripheral rotary shaft relative to the horizontal passing through the peripheral axis of rotation of the shaft; and mounting a means for resetting the device. wherein the means for modifying the angle comprises: at least one external cam arranged facing the outer end of a mass support and including a guide surface; a follower wheel arranged on an outer surface of a mass support and suitable for coming into contact with the guide surface of the cam during rotation of the first disk in order to guide the rotation of the mass support in the direction opposite to the direction of rotation of the first disk, by virtue of the freewheel and in order to change the angle of inclination of the mass support; and a motor connected to the external cam and suitable for driving the cam in rotation about an axis of rotation of the cam in the same direction as the direction of rotation of the first disk.
17. The device according to claim 1, wherein the means for resetting the device can include a cam and rolling roller system, outer cams and a motor, and a motor and cable system.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION OF THE INVENTION
[0079]
[0080]
[0081] A mass Mi (in this example M1, M2, M3, M4) is fastened on each bar Si and can be placed on either side of the fastener point Pi of the bar Si, producing torque either in the clockwise direction or in the counterclockwise direction.
[0082] In
[0083] In
[0084] In
[0085] In
[0086] In the present configuration, when the bars Si are fastened directly to the disk, rotation of the disk is limited by the number of bars used for generating rotation of the disk and by the initial orientations of the bars.
[0087]
[0088] As shown in
[0089]
[0090] In order to give an order of magnitude, the change in the angle of inclination of the bar after a certain amount of rotation of the disk, e.g. when the disk turns through 180 degrees and the bar goes from an initial position P1 to an intermediate position P1, can be determined by subtracting from the starting angle of the bar the angle of rotation of the disk multiplied by the gear ratio. For example, if in the position P1 the bar has an angle relative to the horizontal of 0 degrees, and if the disk turns through 180 degrees and the gear ratio is 1/4, then the final angle of the bar is equal to:
0(180*1/4)=045=45 degrees
[0091]
[0092] In the present example, the disk D has rotated through one complete revolution with torque exerted by a single bar, instead of through only one-quarter of a revolution as shown in
[0093] The number of revolutions performed thus depends on the initial position of the bars, on the value of the gear ratio, which must be less than one (1), and on the value of the torque produced by a bar rotating. the value of the torque, and thus the power, depends on the value of the mass suspended from the bar, on the distance of the mass from the fastener point, and on the number of bars used.
[0094]
[0095]
[0096] The first disk 21 has a center O1 and can rotate about a central axis of rotation AA extending along the rotary shaft 23. The axis AA is then perpendicular to the disk 21 and passes through the center O1. Each mass support 27i is fastened by the corresponding peripheral rotary shaft 26i to the disk 21 at a fastener point Pi (in this example P1, P2, P3, P4). Each fastener point Pi is arranged at essentially the same distance d1 from the center O1 of the disk. For each pair of adjacent points Pi, an angle a1 is formed between these two points and the center of the disk D. The angle al formed for each pair of adjacent points Pi is substantially the same. The peripheral rotary shafts 26i are fastened so as to be capable of turning about peripheral axes of rotation BiBi (B1B1, B2B2, B3B3, B4B4), each axis BiBi being perpendicular to the disk 21 and passing through the corresponding fastener point Pi. Each mass support 27i includes a mass Mi (M1, M2, M3, M4).
[0097] Each rotary shaft 26i has a freewheel 28i for transmitting torque in one direction and for turning freely in the other direction. The freewheel is connected to a coupling shaft 29i passing through the disk 21 and receiving a reducer 30i (none of these being shown in
[0098] In similar manner, the second disk 22 has a center O2 and can turn about a central axis of rotation CC extending along the rotary shaft 24. The axis CC is then perpendicular to the disk 22 and passes through the center O2 of the disk. The second disk 22 is mounted on the support element 25. In addition, the second disk 22 has four fastener points Qi (in this example Q1, Q2, Q3, Q4) that are explained below.
[0099] As can be seen in
[0100] As explained below, rotation of the mass supports 27i about the rotary shafts 26i creates torque that is transmitted to the corresponding reducer 30i via the freewheel 28i and the coupling shaft 29i. Thereafter, the reducer 30i transfers the rotation to the first disk 21. The second disk 22 is connected to the first disk 21 and turns together with the first disk 21.
[0101]
[0102] It may be observed that in other embodiments (as explained below with reference to
[0103] As shown with reference to the reducer 301, a reducer comprises a peripheral ring with internal teeth referred to as the peripheral ring 31, four planet gears 32-j, where j is the index of each planet gear, in this example in the range 1 to 4 (32-1, 32-2, 32-3, 32-4), and an outlet gear 33 situated all around the coupling shaft 29i. The peripheral ring 31 is connected to the coupling shaft 29i by a centering band (not shown on the reducer 301) and constitutes the inlet of the reducer. The outlet gear 33 is situated around the coupling shaft 29i and constitutes the outlet of the reducer. Finally, the planets 32-1, 32-2 are arranged between the peripheral ring 31 and the outlet gear 33 on one side, while the planets 32-3, 32-4 are arranged between the peripheral ring 31 and the outlet gear 33 on the other side. These planets 32-j transfer motion from the ring 31 to the outlet gear 33. The peripheral ring 31, the planets 32-j and the outlet gear 33 are situated essentially in the same vertical plane. The use of four planet gears 32-j enables the peripheral ring 31 and the outlet gear 33 to turn in the same direction, so that the peripheral rotary shafts 26i and the first disk 21 turn in the same direction.
[0104] As shown with reference to the reducer 302, a reducer also has a planet carrier 34 on which the planets 32-j are fastened by support rods 35-j passing through the respective centers of the planets 32-j. A locking part 36i, of which only a first portion 36i-1 extending vertically above the reducer 302 is visible in
[0105] The locking part 36i also has a horizontal second portion 36i-2 that is shown more particularly in
[0106] As shown with reference to the reducer 303, a reducer also has a rotary inlet part referred to as a fastener part 37, which connects the coupling shaft 29i to the peripheral ring 31. The fastener part 37 has a first portion 37-1 referred to as a centering band that is fastened and centered on the coupling shaft, and a second portion 37-2 that is a cylindrical part carrying the peripheral ring 31 and to which it is fastened by screws 38.
[0107] Finally, as shown with reference to the reducer 304, each planet 32-j (32-1, 32-2, 32-3, 32-4) can rotate about its own planet axis of rotation DjDj while following the rotation of the first disk 21 about its axis AA. However, the peripheral ring 31 and the outlet gear 33 can rotate about the axis BiBi while following the rotation of the first disk 21 about its axis AA. In contrast, the planets 32-j (32-1, 32-2, 32-3, 32-4) cannot rotate about the axis BiBi since they are blocked in a predetermined position, a vertical position in this example, by the planet carrier 34 and the locking part 36i.
[0108]
[0109] The second portions 36i-2 of the locking parts 36i extend perpendicularly to the plane of the figure and they are fastened at one end to the fastener points Qi and at the other end to the top ends of the first portions 36i-1 of the locking parts of the planet gears, as shown in
[0110] Finally, the connection part 39 connects the rotary shaft 23 of the first disk to the rotary shaft 24 of the second disk. The connection part 39 serves mainly to support the rotary shaft of the first disk.
[0111]
[0112] As can be seen, the support element 25 is coupled to the rotary shaft 24 of the second disk 22 in order to hold it in a vertical position, while allowing the second disk 22 to turn about its axis CC. Since the disks 21, 22 are connected together by the connection part 39, and to a lesser extent by the locking part 36i (362, 364), the first disk 21 is supported indirectly by the support element 25.
[0113]
[0114] The reducer 40i includes a rotary inlet part 41, a peripheral ring having a primary internal gear 42, two primary planet gears 43-1, 43-2, a first planet carrier 44, an outlet gear 45, an intermediate transition part 46, a secondary peripheral ring with an internal gear 47, two secondary planet gears 48-1, 48-2, a second planet carrier 49, an outlet gear 50, and a rotary outlet part 51. The reducer 40i thus has two reduction stages, the first stage comprising the elements 42 to 45 and the second stage comprising the elements 47 to 50, the intermediate part 46 constituting both the rotary outlet part of the first stage and the rotary inlet part of the second reduction stage.
[0115] The inlet part 41 has a first portion 41-1 or centering band that is fastened and centered on the coupling shaft 29i and a second portion 41-2 that is a cylindrical part carrying the peripheral ring 42 and fastened thereto by screws 52. The inlet part 41 thus transmits rotary motion from the coupling shaft 29i to the primary peripheral ring 42.
[0116] The primary peripheral ring 42 is in contact with the outer ends of the primary planet gears 43-1, 43-2, which are suitable for rotating about their respective axes of rotation D1D1 and D2D2. In addition, the planets 43-1, 43-2 have their centers fastened to the first planet carrier 44, e.g. by means of respective holder rods 53-1, 53-2. It should be observed at this point that the planet carrier 44 is mounted so as to be capable of facilitating rotation of the coupling shaft relative to the planet carrier, and it may include a ball bearing.
[0117] In addition, it should be observed that instead of four planets 32-j as shown with reference to
[0118] Likewise, the secondary peripheral ring 47 is in contact with the outer ends of the secondary planet gears 48-1, 48-2, which are suitable for turning about their respective axes of rotation D1D1 and D2D2. In addition, the planets 48-1, 48-2 have their centers fastened to the second planet carrier 49, e.g. by means of respective holder rods 56-1, 56-2. Likewise, the planet carrier 49 is mounted so as to facilitate rotation of the coupling shaft relative to the planet carrier, and may include a ball bearing.
[0119] The secondary planet gears 48-1, 48-2 are in contact at their inner ends with the outlet gear 50, which is suitable for turning about the coupling shaft 29i and which is coupled to the outlet part 52 by screws 57. The outlet part 51 is coupled to the first disk 21 by a plurality of bolts 58 and includes a ball bearing to facilitate rotation of the first disk about the coupling shaft 29i. Thus, the first disk 21 is driven in rotation by the reducer 40i and the peripheral rotary shaft 26i, which is itself driven in rotation by the mass support.
[0120] In similar manner to the explanation with reference to
[0121]
[0122] The disks 61 and 62 are essentially the same as the disks 21 and 22 described with reference to
[0123] A plurality I of peripheral rotary shafts 65i extends between the disks 61 and 63, and they are mounted at fastener points Pi. The same plurality I of mass supports 66i (only one of which is shown in
[0124] It should be observed at this point that a central rotary shaft could extend between the centers of the disks 61, 63, e.g. for the purpose of better supporting or assisting rotation of the disks, however under such circumstances the dimensions of the mass supports would need to be restricted in order to avoid striking the central rotary shaft during their own rotation.
[0125]
[0126] One end of the rotary shaft 66i has a freewheel 67i configured to face the first disk 61, while the other end of the rotary shaft is merely a bearing 68i configured to face the third disk 63. Consequently, the third disk 63 serves essentially to support the weight of the mass support which may be several hundreds of kilograms or more, depending on the application under consideration.
[0127] The mass support 66i has five faces 69A to 69E. The faces 69A and 69B are plates in the form of right-angle triangles that are arranged at each of the ends of the mass support, facing the disks 61 and 63, respectively. The faces 69A, 69B include holes 70 through which the rotary shaft 65i can pass. The face 69C is a plate extending horizontally that is arranged at the bottom and connected to the horizontal bottom sides of the faces 69A, 69B. The face 69D is a plate extending vertically, being arranged laterally and it connects together the vertical sides of the faces 69A and 69B. The face 69D forms an angle a2 of about 90 degrees with the face 69C. Finally, the face 69E is open and forms the hypotenuse of the triangular shape. The inside space formed by the faces 69A to 69E is empty in order to enable masses to be installed and shifted therein.
[0128] On their top sides, the faces 69A and 69B have respective rails 71 and 72 arranged along the hypotenuses of the triangles of angle a2 that is essentially a right angle (90 degrees). A mass bar 73 has wheels 74 supported by the rails 71 and 72, and it can move back and forth along the direction D2. A mass Mi, represented diagrammatically by an arrow, may be constituted by a mass attached to the bar 73 or may be constituted merely by the mass of the bar itself.
[0129] It may be observed that after a few revolutions of the device, the mass supports occupy vertical positions, as shown in
[0130]
[0131]
[0132] Co-operation between the cam 82 arranged on the first disk 81 and more particularly its rim 84, with the wheel 88 arranged on the mass support 86i enables the angle of the mass support to be varied, as described below with reference to
[0133] At this point, it may be observed that in an embodiment, the third disk is also provided with a cam, and the mass support also has a rod and a wheel arranged facing the third disk. Thus, the third disk assists the first disk in varying the angle of the mass support, which is useful particularly when the mass support supports a large mass.
[0134] In another embodiment, the rod 87 and the follower wheel 88 are arranged on the rotary shaft 85i instead of on the mass support 86i.
[0135]
[0136] The position P11 is vertical directly below the center O1 of the first disk, at an angle of 0 degrees to the vertical, the position P12 is directly horizontal and to the left of the center O1, at an angle of 90 degrees to the vertical, the position P13 is vertically directly above the center O1, at an angle of 180 degrees to the vertical, and the position P14 is directly horizontally to the right of the center O1, at an angle of 270 degrees to the vertical. The rod and wheel assembly of the mass support 86i comes into contact with the cam 82 at the position P14 (the position of minimum inclination of the tray) and it loses contact with the cam at the position P11 (the position for reinitializing the angle of inclination of the tray).
[0137] Consequently, between the positions P11 and P14, the mass support 86i is not constrained by the cam 82 as it rotates about the rotary shaft 85i, whereas between the positions P14 and P11, its rotation is constrained by the cam 82 since the follower wheel 88 of the support 86i is in contact with the rim 84 of the cam, thereby preventing the support from turning in one direction (clockwise in this example) under the effect of the action of the offset mass.
[0138] The first disk 81 continues to turn while the follower wheel 88 is bearing against the rim 84 of the cam. Since the rotary shaft 85i of the mass support 86i is terminated by a freewheel, the support can turn freely in the opposite direction (counterclockwise in this example). The angle of inclination of the support is thus modified by the follower wheel 88 sliding along the rim 84, while the first disk 81 continues to rotate downwards.
[0139] On losing contact with the cam, in the reinitialization position P11, the support has a maximum angle all relative to the horizontal. Thereafter, at the positions P12, P13, and P14, the angle relative to the horizontal (the angles a12, a13, and a14 in this example) decreases progressively such that a11>a12>a13>a14. To give an idea, if the angle all is about 20 degrees relative to the horizontal, the angles a12 to a14 are respectively 14.4, 8.8, and 3.2 degrees for a gear ratio of 1/16. As explained above with reference to
20(90*1/16)=14.4
[0140] It should be observed at this point that the transverse dimensions of the mass support may be selected so that the end furthest from the axis of rotation of the support is always positioned beyond the center of the first disk, as can be seen more particularly at the position P12. A mass positioned at the end of the support thus provides drive at all instants during the rotary cycle, with improved efficiency. The mass supports do not strike the cam since the cam is arranged between the plate 68A of the support and the face of the first disk.
[0141]
[0142] The cams 92 and 93 are connected together by a rotary shaft 94, that is rotatable about an axis of rotation EE. A motor 95 is connected to the rotary shaft 94 in order to cause it to rotate and consequently to rotate the cams 92 and 93.
[0143] The mass support 91i has rods 96 and wheels 97 arranged on the outer ends of the support so as to come into contact with the cams 92 and 93. Rotating the cams about the axis EE serves to facilitate reinitializing the angle of inclination of the mass support 91i. The wheels 97 do not slide along the periphery of the cams 92, 93. On the contrary, the position of the wheel 97 is stationary relative to the periphery of the disk. The motor 95 drives rotation of the rotary shaft 94 and of the cams 92, 93 in one direction (counterclockwise in this example). Rotation of the external cams cancels the gravity mass of the support and the torque of the support about its peripheral axis, modifies the path followed by the wheels, and reinitializes the angle of inclination of the support.
[0144]
[0145] In this figure, the same mass support 102i and the same motor-driven device 103i are shown in four different positions P21, P22, P23, and P24 during rotation of the first disk about the axis of rotation AA. In this figure, the position P21 is vertically directly below the center O1 of the first disk, at an angle of 0 degrees to the vertical, P22 is directly horizontally to the left of the center O1 at an angle of 90 degrees to the vertical, P23 is vertically directly above the center O1 at an angle of 180 degrees to the vertical, and P24 is directly horizontally to the right of the center O1, at an angle of 270 degrees to the vertical.
[0146] Between the position P24 (the minimum inclination position of the tray) and the position P21 (the position for reinitializing the angle of inclination of the tray), the motor-driven device 103i is engaged and exerts traction on the cable 104i that enables the angle of inclination of the mass support 102i to be modified. In contrast, between the positions P21 and P24, the cable 104i remains tensioned but does not impede rotation of the mass support.
[0147] In order to enable the cable 104i to remain tensioned while enabling the mass support 102i to turn in one direction (clockwise in this example) and exert torque, the device 103i also includes a pulley over which the cable 104i slides, a return spring, and a freewheel (not shown in
[0148] In an embodiment, the motor 103i is engaged by detecting that the first disk is passing through the position P24 by means of optical or electromagnetic sensors known to the person skilled in the art. In similar manner, the motor 103i is stopped on detecting that the first disk is passing through the position P21.
[0149]
[0150] A mass-carrier bar 114 with wheels 115 at its ends can slide along the rails 111 and 112 by means of the wheels 115. The position of the mass-carrier bar on the rails may be blocked by two electromagnetic chocks that are raised on both sides of the two wheels 115, or on one side only, leaving the bar free to move between one end of the rail and the chock.
[0151] When all of the chocks are lowered, the mass-carrier bar 114 can move along the rails 111, 112 because of the angle of inclination of the mass support 110i. The position of the mass-carrier bar is blocked once more when the chocks are raised again.
[0152] Since the angle of inclination of the support can change, the mass-carrier bar when free to move can move away from the axis of rotation of the tray, or on the contrary can move towards it. On moving towards it, the torque diminishes, whereas on moving away therefrom the torque increases. When the mass-carrier bar is positioned vertically relative to the axis of rotation of the mass support, there is no torque, ignoring the mass of the support itself.
[0153] It is thus possible to control the value of the torque that is applied to the disk by releasing or by blocking the mass-carrier bar for a predetermined angle of inclination of the mass support. The drive force of the system can thus be controlled and adjusted remotely with the help of the force of gravity.
[0154] Furthermore, the angle of inclination of the mass support may be selected to be relatively small, as described above with reference to the example of
[0155]
[0156] The reducer 120i has a rotary inlet part 121 or centering band that is fastened and centered on the coupling shaft 119, a first gear 122, a second gear 123, an additional coupling shaft 124, a third gear 125, a fourth gear 126, and a rotary outlet part 127. The fourth gear 126 is connected to the outlet part 127 by screws 128, and the outlet part 127 is coupled to the first disk 118 by a plurality of bolts 129 and includes a ball bearing to facilitate rotation of the first disk about the coupling shaft 119.
[0157] The gears 122, 126 are rotary about the axis BiBi. The gears 123, 125 are rotary about the axis DjDj and they are coupled at their centers by the additional coupling shaft 124. The first gear 122 and the second gear 123 mesh at their outsides, and the third gear 125 and the fourth gear 126 likewise mesh at their outsides. Consequently, the gear 120i does not have a peripheral ring, nor does it have planet gears, unlike the gear described with reference to
[0158] Consequently, rotation of the coupling shaft 119 is transmitted consecutively to the rotary inlet part 121, to the first gear 122, to the second gear 123, to the additional coupling shaft 124, to the third gear 125, to the fourth gear 126, to the outlet part 127, and to the disk 118.
[0159] The gear 120i also has a blocking part 130, and a locking part 131 that is connected to the blocking part 130 by a screw 132. The additional coupling shaft 124 passes through the blocking part 130 and can turn about the axis DjDj but cannot turn about the axis BiBi because of the locking part 131, which is connected to the second disk, as described with reference to
[0160] The invention also provides a method of assembling a gravity rotary device as described above.
[0161] The assembly method comprises the following steps: [0162] a step S1 of mounting a first disk, e.g. on a support; [0163] a step S2 of mounting at least one peripheral rotary shaft on the first disk, the peripheral rotary shaft being arranged at a distance from a central axis (AA) of the first disk, being suitable for turning about a peripheral axis of rotation (BiBi) that is parallel to the central axis and that is coupled to the first disk; [0164] a step S3 of mounting reduction gearing 30i, 40i; 120i between the peripheral rotary shaft and the first disk; [0165] a step S4 of mounting locking means for fastening at least a portion of the reduction gearing in a stationary position in order to prevent it from turning about the peripheral axis of rotation; [0166] a step S5 of mounting a freewheel on the peripheral rotary shaft; [0167] a step S6 of mounting at least one mass support on the peripheral rotary shaft; and [0168] a step S7 of mounting means for modifying the angle of inclination of the mass support on the peripheral rotary shaft.
[0169] It should be understood that these steps may be performed in a different order. For example, a mass support may be mounted on a rotary shaft before mounting the shaft on the first disk, the reduction gearing may be mounted on the rotary shaft after mounting the freewheel, etc.
[0170] Furthermore, the assembly method may include steps of mounting a second disk on the support, of connecting means for fastening the portions of the reduction gearing to the second disk, of mounting a third disk facing the first disk, etc.
[0171] The person skilled in the art will understand that the above-described embodiments may be subjected to modifications, and in particular to the following modifications.
[0172] It should be observed at this point that a system for recovering the energy produced by rotation of the rotary device may be coupled to the rotary device, e.g. via the central rotary shafts.
[0173] In an embodiment, the device includes a motor coupled to each peripheral rotary shaft, e.g. on the outside of the third disk, which motor is suitable for causing the shaft to rotate in the direction opposite to the direction of rotation of the first disk (counterclockwise in this example). The motor may be fitted with control means enabling the motor to be started at an appropriate moment. The control means may comprise, for example, a sensor that detects the angular position of the rotary shaft relative to the centers of the disk, or a timer set to the time of rotation of the disk.
[0174] In an embodiment, the device has a plurality of means for modifying inclination angle, e.g. both internal and external cams, an internal cam and a motor coupled to the rotary shaft, etc.
[0175] Although the rotary device is described above as having a plurality of mass supports, the person skilled in the art will understand that a single mass support suffices to cause the device to turn, at least in part, as described with reference to
[0176] Furthermore, it should be observed that there is no need for the rotary shaft of the first disk and of the second disk to be connected together. The locking part may suffice to support the first disk and cause the second disk to turn, depending on the weights and the dimensions of the disk.
[0177] In addition, it should be observed that instead of locking parts connected to the second disk, the locking parts could be connected to stationary points of the first disk, to a ring surrounding the reducer and turning in the opposite direction, to a groove formed in a support, etc. Under such circumstances, the second disk is not essential.
[0178] In addition, it should be observed that the second disk could have its central axis of rotation arranged coaxially with the central axis of rotation of the first disk.
[0179] Naturally, the mass support could be of a variety of shapes, e.g. being made as single pieces, extending over two dimensions only, comprising interconnected tubes instead of plates, etc.
[0180] In addition, the number of planet gears may be varied, depending on the gear ratio, on the number of reduction stages, etc. Similarly, the number of reduction stages may vary.
[0181] Instead of electromagnetic chocks, as shown in
[0182] In an embodiment, the rotary inlet and/or outlet parts may be gears connected directly to the rotary shafts and/or to the disks.
Operational Principle
[0183] On a support ring of 56 cm diameter with a centre O, is installed at the periphery via a unidirectional gear; a bar with a length greater than that of the radius (39 cm) carrying a mass of 500 g to its end.
[0184] This bar is positioned vertically from the lowest point P on the support, if the bar is positioned horizontally; this causes the rotation of the support which will oscillate for a few moments and start to balance at the point P1 after having rolled over 60 of arc. The bar ends at an angle of 40 with the horizontal.
[0185] If the operation is repeated by setting the bar horizontally at the point P1, the support again comes into rotation and stabilizes at the point P2 having further rolled 40 of arc.
[0186] With the third test, the bar passes the top, makes a complete revolution before stopping after several oscillations.
[0187] Conclusion: The motor masses installed at the periphery produce sufficient energy to drive the rotating support.
[0188] With this architecture, the masses installed on the upward side can be motor to the extent that they produce an eccentric motor torque.
[0189] Potential uses: the rotary device can be coupled to another rotary device, so that the energy created by the rotary device on one or more of its support disks can be recovered by a clutch mechanism, a gear mechanism or a belt or chain transmission mechanism for running electricity generators, pumps or compressors, wind turbines, tidal turbines, water turbines.
Test No. 1:
[0190] Four mass bars installed in a cross on a support of 56 cm diameter with bars of 24 cm length and an implantation radius of 19 cm and masses of 500 gr at the ends, as shown in the balance configuration (
[0191] The test is performed under most unfavourable conditions: the system is off, the mass located at the lowest point of the support is implemented without any other source of energy likely to cause rotational support (
[0192] The support rotates for five seconds (two complete rotations) before stopping.
Test No. 2:
[0193] The mass located on the upward side is placed in the driving position (
Test No. 3:
[0194] The highest bar is positioned horizontally and its torque increases (
Test No. 4:
[0195] The four bars are positioned horizontally under a driving position (
Test No. 5:
[0196] This corresponds to the geometric configuration close to that in operation (
TABLE-US-00001 TABLE 1 Desired power and support configuration Tangential Mass Velocity Width (tons) at 30 (meters to be Power Power Diameter turns/min kg kg by of the installed by MW CV kg/s (m) (m/s) needed support support) support 1.5 2040 153 000 6 10 15 300 3825 4 0.956 1.5 2040 153 000 8 12 12 750 3187 6 0.531 1.5 2040 153 000 10 15 10 200 2550 8 0.318 2 2730 204 750 6 10 20 475 5120 4 1.280 2 2730 204 750 8 12 17 062 4265 6 0.710 2 2730 204 750 10 15 13 650 3412 8 0.426 3 4100 307 500 6 10 30 750 7687 4 1.921 3 4100 307 500 8 12 25 625 6406 6 1.067 3 4100 307 500 10 15 20 500 5125 8 0.640 4 5460 409 500 6 10 40 950 10 237 4 2.559 4 5460 409 500 8 12 34 125 8531 6 1.421 4 5460 409 500 10 15 27 300 6825 8 0.853
[0197] Table 1 provides details for a desired power between 1.5 and 4 MW with support of 6, 8, or 10 meters of diameter, and indicates for each case the size of the support and the value of the masses needed to obtain the desired power.