Abstract
An oblique submerged reverse deep rotary tilling device configured to be connected to a tractor. The tilling device includes a stander, a mounted frame, a gearbox and an oblique blade roller. The oblique blade roller has configured rotary blades whose tips bend to the same direction. The angle between the rotary tilling blade roller and an advancing direction of the tractor is 5570 while the rotary blade tips are all toward the right side of the advancing direction. Side force balance blades are installed to the left side of the oblique blade roller, rotate in a plane that is parallel to the advancing direction, and have a rotating center axis disposed at an angle to the oblique blade roller to balance the axial component force of the oblique blade roller.
Claims
1. An oblique submerged reverse deep rotary tilling device configured to be connected to a tractor (23), the device comprising: a stander (1), a mounted frame (2), a gearbox (3) and an oblique blade roller (5) connected to the stander (10), wherein: the mounted frame (2) is connected to the stander (10) to orient the oblique blade roller (5) at an angle of 55 to 70 to an advancing direction (V) of the tractor (23); the gearbox (3) is located at a center of the stander (1); the gearbox (3) has a power input shaft (25) configured to be linked with a power take-off (PTO) shaft (24) of the tractor (23) by a universal joint (26) so that the power input shaft (25) is at an angle of 110 to 125 to the advancing direction (V) of the tractor (23); the gearbox (3) has a power output shaft (17) that is a splined shaft connected to an oblique blade roller shaft (7) of the oblique blade roller (5); the oblique blade roller (5) has rotary blades (6) and the oblique blade roller shaft (7) has oppositely-disposed first and second ends connected to bearings (18) supported by bearing seats (4,21) fixed on oppositely-disposed ends the stander (1), the first end of the oblique blade roller shaft (7) being behind the second end of the oblique blade roller shaft (7) in the advancing direction (V) as a result of the mounted frame (2) orienting the oblique blade roller (5) at the angle of 55 to 70 to the advancing direction (V); tips of the rotary blades (6) are bent toward the second end of the oblique blade roller shaft (7); and a column of side force balance blades (16) are mounted to the oblique blade roller (5) and rotate in a plane that is parallel to the advancing direction (V), and the side force balance blades (16) have a rotating center axis disposed at an angle of 20 to 35 to the oblique blade roller (5).
2. The device of claim 1, wherein the oblique blade roller shaft (7) has a rotating direction that is inverse to a rotating direction of a driving wheel of the tractor (23) when the tractor (23) is advancing in the advancing direction (V).
3. The device of claim 1, wherein the bearing seat (21) fixed at the first end of the oblique blade roller shaft (7) is an oblique bearing seat (21) that has an inner groove paralleled to the advancing direction (V), a cylindrical roller bearing (22) having an inner ring and an outer ring is fixed in the inner groove of the oblique bearing seat (21), the oblique blade roller shaft (7) has a groove matched with a ball seat (9) of the inner ring of the cylindrical roller bearing (22), balls (8) are disposed between the groove in the oblique blade roller shaft (7) and the ball seat (9) of the inner ring of the cylindrical roller bearing (22), and the side force balance blades (16) are fixed on a cutter head (10) fixed on the outer ring of the cylindrical roller bearing (22).
4. The device of claim 3, wherein the ball seat (9) is fitted to the inner ring of the cylindrical roller bearing (22) by an interference fit, and the outer ring of the cylindrical roller bearing (22) is fitted to the oblique bearing seat (21) by an interference fit.
5. The device of claim 4, wherein the number of the side force balance blades (16) is four, five, or six.
6. The device of claim 5, wherein the side force balance blades (16) are side-cutting blades each comprising a first cutting edge (19) and a second cutting edge (20).
7. The device of claim 6, wherein the first cutting edge (19) adopts a Descartes Ray curve, and the second cutting edge (20) adopts a Weibull Distribution curve in which size, shape and position parameters are =1, 0.5<<1, =0 respectively.
8. The device of claim 7, wherein the rotary blades (6) of the oblique blade roller (5) extend from cutter heads that are spaced apart 100 to 150 mm, two or three rotary blades (6) extend from each of the cutting heads, and the rotary blades (6) of each of the cutting heads have a phase angle of 60 to 90.
9. The device of claim 1, wherein the length, blade thickness, the lengthwise portion width, and the positive section width are 150 to 250 mm, 8 to 10 mm, 15 to 20 mm, and 80 to 120 mm, respectively.
Description
IV. DESCRIPTION OF DRAWINGS
(1) FIG. 1 illustrates the schematic diagram of the structure of the present invention;
(2) FIG. 2 illustrates the local enlarging graphs of the A section shown in FIG. 1;
(3) FIG. 3 illustrates the local enlarging graphs of the B section shown in FIG. 1;
(4) FIG. 4 illustrates the local enlarging graphs of the C section shown in FIG. 1;
(5) FIG. 5 illustrates a schematic diagram of rotary blade;
(6) FIG. 6 illustrates the schematic diagram of the side force balance knife;
(7) FIG. 7 illustrates the schematic diagram of the working of the present invention;
(8) FIG. 8 illustrates the schematic diagram of rotary blade cutting soil movement of the present invention;
(9) FIG. 9 illustrates the schematic diagram of the cutting soil of the present invention;
(10) FIG. 10 illustrates the schematic diagram of rotary blade effect on soil of the present invention;
(11) FIG. 11 illustrates the natural submerged reverse rotary direction of soil throwing device;
(12) FIG. 12 illustrates the diagram of throwing soil of the present invention.
(13) In the figures: 1stander; 2mounted frame; 3gearbox; 4bearing seat; 5oblique blade roller; 6rotary blade; 7oblique blade roller shaft; 8steel ball; 9steel ball seat; 10cutter head; 11uncultivated land; 12cut slice; 13ground surface; 14cultivated land; 15soil particle; 16side force balance blades; 17output shaft; 18bearing; 19cutting-edge I; 20cutting-edge II; 21oblique bearing seat; 22cylindrical roller bearing; 23tractor; 24tractor power output shaft (power take-off shaft, or PTO); 25power input shaft; and 26universal joint.
V. EMBODIMENTS
(14) Further to the drawings as well as specific examples presented below, but the scope of the invention is not limited to this.
(15) As shown in FIG. 1, FIG. 3 and FIG. 4, the oblique submerged reverse deep rotary tilling device of the invention includes a stander 1, a mounted frame 2, a gearbox 3 and an oblique blade roller 5. The oblique submerged reverse deep rotary tilling device is connected to a the tractor 23 through a mounted frame 2, and the mounted frame 2 is connected to the frame 1. The gearbox 3 is positioned at the center of the device, and the power output shaft 24 of the tractor 23 drives the power input shaft 25 of the gearbox 3 through a universal joint 26. The power output shaft 17 of the gearbox 3 is a splined shaft, and both ends of the power output shaft 17 are respectively connected with one end of the oblique blade roller shaft 7 on both ends. And the other end of the oblique cutter roller shaft 7 is configured in the bearing 18 located in the bearing seat 4, and the bearing seat 4 is fixed on the frame 1 by bolts. The power output shaft 17 of the gearbox 3 drives the oblique blade roller 5 on both ends to reversely rotate and cut soil.
(16) As shown in FIG. 1 and FIG. 2, the oblique blade roller 5 is made up of the rotary blades 6 whose tips are bending rightward, and the oblique angle between the oblique blade roller 5 and the advancing direction of the tractor is 5570, and the rotary blade 6 tips are all bent rightward. However, the left side of oblique knife roller 5 is configured a column of side force balance blades 16, and the oblique angle between the rotating center axis of the side force balance blades 16, the oblique blade roller 5 is 2035, and the rotating center axis of the side force balance blades 16 is parallel to the driving wheel shaft of the tractor.
(17) As shown in FIG. 2, the oblique blade roller shaft 7 has a groove, and a steel ball 8 is fitted between the groove and the steel ball seat 9 of the side force balance blade 16 on the left side of the oblique blade roller 5. The steel ball seat 9 is connected with the cutter head 10 through bolts, and the cutter head 10 is equipped the side force balancing blades 16. The steel ball seat 9 is connected to the inner ring of the cylindrical roller bearing 22 by pinch fit, and the outer ring of the cylindrical roller bearing 22 is connected to the oblique bearing seat 21 by pinch fit. The oblique bearing seat 21 is fixed with the stander 1 by bolts. When the oblique blade roller shaft 7 rotates, the steel ball 8 drives the steel ball seat 9 to rotate, and the steel ball 8 rolls back and forth in the groove in the left of the oblique blade roller shaft 7. The steel ball seat 9 drives the inner ring of the cylindrical roller bearing 22 to rotate. Because the outer ring of the cylindrical roller bearing 22 is fixed with the oblique bearing seat 21, the side force balance blade 16 is rotated to cut soil in the plane which parallels to the tractor wheel.
(18) As shown in FIG. 5, the rotary blade 6 is specifically designed for the invention. The length of the rotary blade 6 is 150250 mm, blade thickness is 810 mm, the widthwise section width is 1520 mm, and the lengthwise section width is 80120 mm. The lengthwise section area of the rotary blade 6 is enlarged, and the widthwise section area is decreased, which can reduce the amount of soil thrown forward and increase the amount of soil thrown backward.
(19) As shown in FIG. 6, the number of the side force balance blades 16 installed on the left side of the oblique blade roller 5 is 46. The lateral area of the side force balance blades 16 is relatively larger, and the side force balance blades 16 has a cutting-edge I 19 and a cutting-edge II 20. The cutting-edge I 19 adopts Descartes Ray curve, and the cutting-edge II 20 adopts the structure of Weibull Distribution curve in which size, the shape, and position parameters are =1, 0.5<<1, =0 respectively. In the cutting soil process, the relatively larger lateral area is more effective to balance the axial force of the knife roller.
(20) As shown in FIG. 7, the gearbox 3 of the dotted area located in the farming area of the solid line when the oblique blade roller 5 moves from solid line area to the dotted area. Namely, the gearbox 3 is located on cultivated land 14 then. So, the device can avoid the gearbox 3 interference with uncultivated land 11, and make the oblique blade roller shaft 7 sinks into the ground surface to achieve deep tillage.
(21) As shown in FIG. 8, when the rotary blade 6 moves from position a to the position b, the rotary blade 6 not only moves forward L but also moves rightward S. So, the rotary blade 6 has a movement of pointing to the cultivated land 14 and makes more soil destroyed by tension force, consequently reducing cutting soil force. It also makes the cut slice 12 get a speed of pointing to the cultivated land 14, and make tilled soil clods thrown to the cultivated land 14, reducing re-tilling.
(22) As shown in FIG. 9, the operating mode of the present invention is oblique submerged reverse rotary tillage. The soil is cut from the plow-sole. Because the cut slice 12 has no constraint above, more soil can be broken by tension and be thrown to cultivated land 14. So, it can reduce the amount of hipping in the front.
(23) As shown in FIG. 10, the right of the rotary blade 6 is cultivated land 14, so cut slice 12 reduces a constraint surface. That will reduce the cutting force, and make the soil damaged more easily, and reduce the energy consumption of cutting soil. Because the angle between the side edge of rotary blade 6 and forward direction is 2035, the side edge of rotary blade 6 with lateral displacement produces forces on the cut slice 12, and the force direction is shown in the figure. Since the right of the cut slice 12 is cultivated land 14, more soil may be broken by tension. So, the invention can reduce the energy consumption.
(24) As shown in FIG. 11 and FIG. 12, the throwing direction of the soil particles 15 is as shown in FIG. 11 when using natural submerged reverse rotary tillage device. Most soil particles are thrown to the front of the device, causing blockage and increasing farming energy consumption. However, the throwing direction of the soil particles 15 is as shown in FIG. 12 when using oblique submerged reverse rotary tillage device of the present invention. In addition to the soil particles 15 thrown to the forward or backward, more soil particles 15 are thrown to the cultivated land 14. So, the invention may make more soil be thrown to the cultivated land 14, and reduce the amount of hipping, and further reduce re-tillage and energy consumption.
(25) In addition, the object of the present invention is to create an embodiment and has been described in detail, the present invention is provided only for the creation of a preferred embodiment, and cannot consider defining the scope of the present inventions. Where the scope of such an application under these inventions made in equal changes and modifications shall yet fall within the present inventions covered by the patent. Because many modifications, variations, and changes in detail can be made to the described preferred embodiments of the invention, it is intended that all matters in the foregoing description and shown in the accompanying drawings be interpreted as illustrative and not in a limiting sense. Thus, the scope of the invention should be determined by the appended claims and their legal equivalence.
