DEVICE FOR EMPTYING CONVEYING BUCKETS DURING THE SINKING OF SHAFTS

Abstract

The invention relates to a device for emptying a conveying bucket of rock/soil loosened during the sinking of a shaft with a chute (20) for the rock/soil (400) emptied from the conveying bucket (200, 200), which can be moved linearly between a conveying bucket transport position and a conveying bucket emptying position by means of an actuator. A receiving element (30) for the conveying bucket (200, 200) is provided for establishing a retaining connection between the chute (20) and the conveying bucket (200, 200), which is arranged on the chute (20) so as to be rotatable about an axis of rotation (33), the receiving element (30) being pivotable between a receiving position (420) and an emptying position (430) by means of an actuator (34).

Claims

1-9. (canceled)

10. An apparatus for emptying a conveying bucket of at least one of rock or soil loosened during the sinking of a shaft comprising: a chute for conveying away the at least one of rock, soil, or material emptied out of the conveying bucket wherein the chute is linearly displaceable by means of an actuator between a conveying bucket transport position and a conveying bucket emptying position; a receiving element for receiving the conveying bucket designed for producing a retaining connection between the chute and conveying bucket, a first actuator arranged between the chute and the receiving element; wherein the receiving element is rotatably connected to the chute about a rotation axis; and wherein the receiving element is pivotable between a receiving position and an emptying position by the actuator.

11. The apparatus as claimed in claim 10, wherein the receiving element comprises a rotation portion and an engagement portion, wherein the engagement portion engages with a connection portion of the conveying bucket.

12. The apparatus as claimed in claim 11, wherein the engagement portion is at least one of a projection element, a fork-like element, or a fork element.

13. The apparatus as claimed in claim 11 wherein the first actuator in arranged between the chute and the rotation portion for pivoting the rotation portion.

14. The apparatus as claimed in claim 10, wherein the first actuator is a hydraulic cylinder.

15. The apparatus as claimed in claim 10, wherein the chute is constructed in at least two pieces moveable one relative to the others.

16. The apparatus as claimed in claim 15 comprising a second actuator for moving the at least 2 pieces relative to another.

17. The apparatus as claimed in claim 16, wherein the second actuator is a hydraulic cylinder.

18. The apparatus as claimed in claim 10, wherein a conveying cable of the conveying bucket is not deflectable when the receiving element is pivoted.

19. The apparatus as claimed in claim 10, wherein the conveying bucket is pivotable by more than 90 degrees.

20. The apparatus as claimed in claim 10, wherein the conveying bucket is pivotable until it is parallel with a base of the chute.

21. The apparatus as claimed in claim 10, wherein a rotation apparatus is provided, with which at least one of the chute or the receiving element is horizontally pivotable between two receiving positions or two emptying positions.

Description

[0022] In the following, the invention will be explained in more detail with the aid of a drawing of a preferred embodiment. It shows

[0023] FIG. 1 a conveying bucket with guide carriage in side view with a connecting element for the device according to the invention,

[0024] FIG. 2 a schematic representation of a double drum conveyor system with two conveying buckets and a filling location in the area of a temporary shaft bottom and an emptying location above ground with a device according to the invention,

[0025] FIG. 3 a spatial representation of a device according to the invention,

[0026] FIG. 4 a side view of the device according to the invention with freely suspended conveying bucket,

[0027] FIG. 5 the device according to the invention in side view with connected conveying bucket,

[0028] FIG. 6 the device according to the invention in side view with tilted conveying bucket,

[0029] FIG. 7 a side view of the device according to the invention with the conveying bucket tilted further, and

[0030] FIG. 8 a pivotable embodiment of the device according to the invention with conveying buckets.

[0031] FIG. 1 shows a conveying bucket 200 for use with a device 10 according to the invention for emptying a conveying bucket when sinking a shaft. Guide ropes 100 are tensioned in the shaft (not shown) as a shaft guide, on which, for example, a guide carriage 110 travels up and down the shaft in a safely guided manner. Other shaft guides such as rails or the like are also possible.

[0032] The guide carriage 110 is detachably connected to a conveyor cable 120, for example via a detachable locking mechanism 150.

[0033] The guide carriage 110 is moved up and down the shaft together with the conveying bucket 200 via the hoisting cable 120.

[0034] A hook 130 is arranged on the conveyor cable 120, on which the conveying bucket 200 is suspended, for example via a chain hanger 140. Alternatively, a support bracket pivotably mounted on the conveying bucket 200 can also be used. The conveying bucket 200, 200 is suspended movably/pivotably by the chain hanger 140. It has a connecting element 210 on its underside, into which a receiving element 30 can engage.

[0035] FIG. 2 shows a conveyor system 500 with a double drum winch 300 with the device 10 according to the invention for emptying a conveying bucket 200, 200 during the sinking of a shaft. The double drum winch 300 shown here schematically, for example at the surface 410, has a drive 310 which drives a first drum shaft 320. A first drum 330 is arranged on the drum shaft 320, on which a first winding cable 120 can be wound/unwound, for example from below in a first winding/unwinding direction. The drum shaft 320 is connected to a second drum shaft 340, possibly via a coupling 350, so that the first drum shaft 320 is rotated together with the second drum shaft 340 by the drive 310. A second drum 360 is arranged on the drum shaft 340, on which a second conveyor cable 120 can be unwound/rewound, for example from above below in a second unwinding/rewinding direction. The drum directions are in opposite directions, so that one conveyor cable 120, 120 is reeled up and the other conveyor cable 120, 120 is simultaneously unreeled and vice versa, while both drums 330, 360 and both drum shafts 320, 340 are rotated in the same direction by the drive 310.

[0036] In their respective temporary end positions, one conveying bucket 200 is located at the bottom of the shaft in order to be filled, which is represented here by a bunker 370 in the filling location, while the other conveying bucket 200 is located at the top, for example above ground, in order to be emptied in the area of the so-called suspended bench, represented here by a chute 20 of the device 10 according to the invention, onto which the loosened rock/soil 400 located in the conveying bucket 200, 200 is emptied and subsequently conveyed away.

[0037] In mining, the term pit bank refers to the devices and installations in the hoisting building above ground/in the shaft that are used to empty the 200, 200 conveying buckets.

[0038] FIG. 3 shows a device 10 according to the invention with a linearly displaceable chute 20 with a receiving element 30 at the tip.

[0039] Preferably, the chute 20 is divided into at least two parts: an upper chute part 21 and a chute base 22. Particularly preferably, the upper chute part 21 is designed to be movable relative to the chute base 22. This can be done in the direction of the longitudinal axis of the chute 20 (direction of arrow E in FIG. 5), for example with an actuator (not shown). Alternatively or additionally, the upper chute part 21 can be pivoted relative to the chute base 22 (not shown), so that several parallel pick-up positions 420, 420 can be connected to one chute 20 as shown, for example, in FIG. 8.

[0040] The receiving element 30 preferably has an engagement section, preferably in the form of a projection element 31, which is designed, for example, like a fork/pitchfork. This can, for example, be insertable into at least one connecting element 210, for example at the bottom of the conveying bucket 200, in order to grip the conveying bucket 200 and move it in space by moving the receiving element 30, for example by rotating or tilting the receiving element 30 by means of an actuator 34.

[0041] Furthermore, the receiving element 30 has a support element 35 arranged, for example, at right angles to the projection element 31 and, for example, at its rear end, against which a side wall 210 of the conveying bucket 200 comes to rest when the receiving element 30 has fully engaged in the connecting element 210. The support element 35 is preferably bent analogously to the bending of the side wall 220 of the conveying bucket 200, as shown in FIG. 8.

[0042] FIG. 3 shows a spatial view of a chute 20 in a retracted position, which corresponds to a bucket conveying position, before the conveying bucket 200 is moved to an emptying position 430. The chute 20 is in the conveying bucket transport position while the conveying bucket 200 is raised or lowered in the shaft until the bucket is in the pick-up position 420. By means of an actuator 11, for example a hydraulic cylinder, the chute 20 can be moved between a retracted conveying bucket transport position and an extended conveying bucket emptying position, here exemplified by arrow D.

[0043] The chute in FIG. 3 has a base 23 and side walls 24. If the chute 20 is telescopic, both the chute base 22 has a base 23 and side walls 24 and the upper chute part 21 has a base 23 and side walls 24.

[0044] As shown in FIG. 4, the receiving element 30 is arranged, for example, on a sliding element 36 so as to be displaceable in the direction of arrow B on a rotation section 32.

[0045] The rotation section 32 can be rotated here, for example, about an axis of rotation 33 with an actuator 34, here for example a hydraulic cylinder, in the direction of arrow A. The rotation in the direction of arrow A is effected by extending and retracting the hydraulic cylinder 34 in the direction of arrow C. Other actuators can be used.

[0046] FIG. 4 shows a side view of the chute 20 according to the invention in a position analogous to FIG. 3.

[0047] If necessary, the conveying bucket 200 is rotated into a receiving position in the receiving position 420, so that a corresponding position of the conveying bucket 200 is given, so that the receiving element 30 can establish a retaining connection with the conveying bucket 200 via the at least one connecting element 210.

[0048] The at least one connecting element 210 at the lower end of the conveying bucket 200 points in the direction of the chute 20. The chute is then extended with the actuator 11 in the direction of arrow D until the projection element 31 (fork/pitchfork) is at the level of the at least one connecting element 210 of the conveying bucket 200.

[0049] This can also be achieved by a telescopic chute 20, in which the chute 20 is divided into two parts, as shown for example in FIGS. 5 to 7. By means of an actuator not shown, preferably a hydraulic cylinder, the upper chute part 21 is moved relative to the chute base 22 in the direction of arrow E, preferably also until the projection element 31 is at the level of the connecting element 210.

[0050] The receiving element 30 with projection element 31 (fork/pitchfork) is then extended in the direction of arrow B, for example on the sliding element 36 (see also FIG. 5), and the at least one projection element 31 (fork/pitchfork) threads into the at least one connecting element 210 of the conveying bucket 200 in order to establish a connection with the conveying bucket 200. This preferably takes place until the support element 35 comes into contact with the side wall 220 of the conveying bucket 200.

[0051] The rotary section 32 is then rotated around the axis of rotation 33 in the direction of arrow A by means of the actuator 34. This is preferably done here by the hydraulic cylinder 34 extending in the direction of arrow C, whereby the receiving element 30 with the projection element 31 pivots about the axis of rotation 33, see FIG. 6 and FIG. 7. The conveying bucket 200 is advantageously held in relation to the chute 20, on the one hand by the engagement of the at least one projection element 31 in the at least one connecting element 210, and on the other hand by the support element 35, which is preferably shaped analogously to the bend of the side wall 220 of the conveying bucket 200.

[0052] Advantageously, the chute 20 is additionally extended further so that the chute 20 passes through the guide ropes 100 so that the hook 130 of the bucket 200 remains substantially in the plane of the guide ropes 100, as shown in FIGS. 6 and 7, so that the hauling rope 120 is not deflected unnecessarily, which would lead to the hauling rope 120 reeling up or down, which would correspondingly lead to a vertical movement of the bucket 200 located in the shaft, which would be disadvantageous.

[0053] Due to the high side walls 34, 34, 34 of the chute 20, or the upper chute part 21 and the chute base 22, nothing of the loosened soil/loosened rock/material 400 can fall down into the hoisting tower or shaft when the material 400 starts to move out of the conveying bucket into the chute 20.

[0054] For example, a conveyor chute 250, a belt or a conveyor carriage is connected to the chute 20.

[0055] In the maximum tilted position shown in FIG. 7, the conveying bucket 200 is emptied completely. If necessary, emptying can be assisted by shaking the bucket 200, for example via the actuator/hydraulic cylinder 34, by alternately moving it in and out, whereby complete emptying can be achieved.

[0056] After the conveying bucket 200 has been completely emptied, it is swung back in reverse order and the receiving element 30 is separated from the conveying bucket 200 by moving back horizontally. This releases the conveying bucket again in a controlled manner and it remains above the shaft axis in order to be lowered empty into the shaft again, while the other conveying bucket 200 is lifted filled into the receiving position 420.

[0057] Here, the conveying bucket 200 is emptied using a second device 10 according to the invention.

[0058] Alternatively, only one device 10 according to the invention can be provided, as can be seen in FIG. 8. Here, a rotating device 12 is provided, which pivots the device 10 according to the invention from the first pick-up position 420 to the second pick-up position 420, or the chute 20 with the pick-up element 30 arranged thereon. The pivoting is performed by the rotating device in the direction of arrow F.

[0059] The chute 20 is preferably supported on a rail 13, which supports the stability of the device 10 during pivoting.

[0060] Alternatively, the rotation in the direction of arrow A can also only take place by moving the chute in the direction of arrow E, for example if the hook or the conveyor rope is fixed so that a rotational movement can take place.

[0061] Alternatively, the chute 20 and the receiving element 30 with its associated components 31 to 36 can be provided separately as two separate devices. For example, the receiving element 30 grips the conveying bucket 200 from a side that is different from the direction in which the chute 20 enters the area underneath the conveying bucket 200. For example, there may be an angle of 90 or even 180 between the directions of attack.