Inclined shaft skip bucket anti-sliding mechanism

Abstract

The utility model discloses an anti-sliding mechanism for an inclined shaft skip bucket. Relates to the field of mine field safety and comprises a first inserting claw, the first inserting claw is rotationally connected to a skip car, and the rotating axis of the first inserting claw is arranged in the horizontal direction; the first inserting claw rotates to be inserted into the ground or a sleeper; a limiting assembly used for limiting rotation of the first inserting claw is further arranged on the skip car. Through the arrangement of the inserting claws, the limiting assembly and the locking device, when the skip car runs in an inclined shaft, if the main steel wire rope is broken, the first inserting claw and the second inserting claw automatically fall down and are inserted into the ground or a sleeper for braking, and the safety of personnel and equipment is guaranteed; when the skip car runs on a flat road, the locking device limits movement of the limiting rod, so that the first inserting claw and the second inserting claw cannot brake, and the situation that transportation of the skip car is hindered due to triggering of the anti-sliding device is avoided.

Description

Technical Field

[0001] The utility model relates to the field of mine safety, in particular to an anti-runaway mechanism for an inclined shaft skip. Background Art

[0002] In the mining process, inclined shaft hoisting technology occupies a core position, and the inclined shaft skip is an indispensable key container in this hoisting system. As a device for directly loading useful minerals, waste rock or gangue, the skip is divided into two types: dedicated for inclined shafts and dedicated for vertical shafts according to its different usage scenarios. Inclined shaft skips are further subdivided into rear-unloading and front-unloading types according to their different unloading methods.

[0003] However, the existing inclined shaft skip has certain safety hazards in practical application. When a rope breaking accident occurs, the inclined shaft skip will lose control and slide down rapidly along the track, which may cause serious damage to the equipment underground, and even cause casualties, resulting in property losses, affecting the mining progress, and thus posing a threat to the economic benefits of the enterprise and the personal safety of employees. Utility Model Content

[0004] In order to prevent a skip truck from causing an accident in an inclined shaft due to a broken traction rope, the present application provides an inclined shaft skip truck anti-runaway mechanism.

[0005] The present application provides a mechanism for preventing a shaft bucket from running away, which adopts the following technical solution:

[0006] A mechanism for preventing a skip from running away in an inclined shaft comprises a first claw which is rotatably connected to a skip car and whose rotation axis is arranged in a horizontal direction; the first claw is rotated to be inserted into the ground or a rail sleeper; and a limit assembly for limiting the rotation of the first claw is also provided on the skip car.

[0007] By adopting the above technical scheme, when the skip car is moving normally in the inclined shaft, the position of the first claw is limited by the limiting component to keep it away from the ground or the sleeper; when the main wire rope breaks or the traction force disappears, the limiting of the limiting component is cancelled, so that the first claw is inserted into the ground or the sleeper to prevent the skip car from sliding down.

[0008] Optionally, the limiting assembly includes a traction rod, a middle section of the traction rod is rotatably connected to the bucket truck, the rotation axis of the traction rod is arranged in the horizontal direction, one end of the traction rod is used to be connected to the main steel wire rope, the other end of the traction rod is rotatably connected to the limiting rod, and the other end of the limiting rod is rotatably connected to the middle section of the first claw; when the main steel wire rope is tightened and pulls the traction rod, the first claw is retracted.

[0009] By adopting the above technical solution, when the main steel wire rope is normally connected to the traction rod and tightened, the traction rod drives the limit rod to rotate, and the limit rod drives the first claw to rotate, thereby propping up the first claw; when the traction force disappears, the first claw falls under the action of gravity, thereby inserting into the sleeper or the ground.

[0010] Optionally, the traction rod is fixedly connected to a first tension spring, the other end of the first tension spring is fixedly connected to the skip car, and when the first tension spring is in a natural state, the first claw is inserted into the ground or the sleeper.

[0011] By adopting the above technical solution, when the main steel wire rope is pulled normally, the limit rod is forced to rotate and move, thereby driving the first tension spring to extend; when the traction force disappears, the first tension spring contracts, driving the limit rod to rotate and move, thereby driving the fast first claw to rotate quickly and limit; at the same time, when the first claw may over-flip due to the large friction force to release the brake, the first tension spring is compressed, which can effectively prevent the first claw from over-flipping.

[0012] Optionally, the limit rod is provided with a cross bar one along the width direction of the bucket car, and a plurality of the first claws are arranged at intervals along the width direction of the bucket car, and the cross bar one is rotatably connected to the plurality of the claws at the same time.

[0013] By adopting the above technical solution, multiple first claws are limited at the same time.

[0014] Optionally, a second claw is rotatably connected to the skip car, the second claw and the first claw are spaced apart along the length direction of the skip car, the rotation axis of the second claw is arranged in the horizontal direction, and the second claw rotates to insert into the ground or a sleeper; one end of the limit rod close to the first claw is rotatably connected to a linkage rod, and the other end of the linkage rod is rotatably connected to the second claw; when the main wire rope pulls the traction rod, the second claw is retracted.

[0015] By adopting the above technical solution, when the first claw is supported by the limit rod, the second claw is supported by the linkage rod; the second claw can increase the probability of inserting into the sleeper and perform effective braking; at the same time, the braking capacity is also enhanced.

[0016] Optionally, the linkage rod is fixedly connected with a second tension spring, and the other end of the second tension spring is fixedly connected to the skip car; when the second tension spring is in a natural state, the second claw is inserted into the ground or the sleeper.

[0017] By adopting the above technical solution, the effect of the second tension spring is consistent with that of the first tension spring.

[0018] Optionally, a second cross bar is provided on the linkage rod, a plurality of the second claws are arranged at intervals along the width direction of the bucket truck, and the second cross bar is rotationally connected to the plurality of the second claws simultaneously.

[0019] By adopting the above technical solution, multiple second claws can be braked simultaneously, thereby enhancing the braking capacity.

[0020] Optionally, a locking device is rotatably connected to the skip car, a middle section of the locking device is rotatably connected to the skip car, the rotation axis of the locking device is arranged in the horizontal direction, and the center of gravity of the locking device is located at the hinge point; a clamping block is provided on the locking device, and a clamping slot is provided on the limiting rod for the clamping block to be rotatably inserted; when the skip car is on a flat road, the clamping block is inserted into the clamping slot.

[0021] By adopting the above technical scheme, when the bucket is towed in the inclined shaft, the traction wire rope of the bucket is tightened, and the locking device limit device rotates by the counterweight block to maintain balance, forming an angle with the bucket body, so that the block withdraws from the slot. At this time, if the traction main rope breaks, the anti-runaway device can be triggered to brake; when the bucket is on the flat road, the main wire rope is not needed for traction, the locking device is parallel to the bucket car body, and the front end block of the locking device limit device is inserted into the limit rod slot. The anti-runaway device will not be triggered due to the limit stuck, and the other action mechanisms will not move, so that no braking is performed, thereby realizing the flat road locking function and preventing the anti-runaway device from affecting the transportation efficiency.

[0022] Optionally, a counterweight is provided on the locking device.

[0023] By adopting the above technical solution, the center of gravity of the closure is located at the hinge, so that the closure can be kept horizontal at all times.

[0024] In summary, this application includes the following beneficial technical effects:

[0025] The present application arranges claws, limit assemblies and locks so that when the skip car is running in an inclined shaft, if the main steel wire rope breaks, the first claw and the second claw will automatically fall down and insert into the ground or the sleeper for braking, thereby ensuring the safety of personnel and equipment; when the skip car is running on a flat track, the lock limits the movement of the limit rod, thereby making it impossible for the first claw and the second claw to brake, thereby preventing the anti-runaway device from being triggered and hindering the transportation of the skip car. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a side view of the overall structure of an inclined shaft skip anti-runaway mechanism of the present application when it is located in the inclined shaft;

[0027] Figure 2 This is a bottom view of the overall structure of an inclined shaft bucket anti-runaway mechanism of the present application when it is located in the inclined shaft;

[0028] Figure 3 yes Figure 1 Schematic diagram of the coordination between the middle limit rod and the locking device.

[0029] Description of reference numerals:

[0030] 1. Skip truck; 11. First claw; 12. Second claw; 21. Drawbar; 22. Limit rod; 221. Slot; 222. Crossbar 1; 23. Link rod; 231. Crossbar 2; 24. Lock; 241. Block; 242. Counterweight; 31. First tension spring; 32. Second tension spring; 4. Main wire rope. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] The embodiment of the present application discloses a mechanism for preventing a bucket from running away in an inclined shaft. The mechanism is installed on a bucket car 1 and comprises a first claw 11, a limit rod 22 and a traction rod 21. The first claw 11 is rotatably connected to the bucket car 1, and the rotation axis of the first claw 11 is arranged along the horizontal direction; the middle section of the traction rod 21 is rotatably connected to the front part of the bucket car 1, one end of the traction rod 21 is used to be connected to the main steel wire rope 4, and the other end is rotatably connected to the limit rod 22; the two ends of the limit rod 22 are rotatably connected to the traction rod 21 and the first claw 11 respectively.

[0033] Depend on Figure 1 and Figure 2 It can be seen that when the main steel wire rope 4 applies traction, the traction rod 21 rotates counterclockwise, and the left end of the limit rod 22 moves to the left, thereby driving the first claw 11 to rotate clockwise and move away from the ground or the sleeper; when the main steel wire rope 4 breaks or the traction disappears, the limit rod 22 no longer supports the first claw 11, so the first claw 11 falls under the action of gravity and is inserted into the ground or between the sleepers, playing a braking role.

[0034] At the same time, in order to speed up the braking reaction speed and enhance the braking ability, a first tension spring 31 is fixedly connected to the traction rod 21, and the other end of the first tension spring 31 is fixedly connected to the bucket car 1. When the main wire rope 4 is pulled normally, the left end of the limit rod 22 moves, thereby forcing the first tension spring 31 to extend; when the traction force disappears, the first tension spring 31 contracts, driving the left end of the limit rod 22 to move right, thereby driving the fast first claw 11 to rotate quickly and limit it; at the same time, when the first claw 11 may over-flip due to the large friction force to release the brake, the first tension spring 31 is compressed, which can effectively prevent the first claw 11 from over-flipping.

[0035] A cross bar 222 is provided at the left end of the limiting rod 22 along the width direction of the bucket car 1. The cross bar 222 and the limiting rod 22 form a T-bar as a whole. Two first claws 11 are arranged at intervals along the width direction of the bucket car 1. The two first claws 11 are rotatably connected to the cross bar 222. Therefore, the movement logic of the two first claws 11 is consistent, and the braking operation can be completed together to enhance the braking ability.

[0036] Further, the second claw 12 is rotatably connected to the skip car 1, the first claw 11 and the second claw 12 are arranged at intervals along the length direction of the skip car 1, and the rotation axis of the second claw 12 is arranged in the horizontal direction; the left end of the limit rod 22 is rotatably connected to the linkage rod 23, and the other end of the linkage rod 23 is rotatably connected to the second claw 12; Figure 1 and Figure 2 It can be seen that when the left end of the limit rod 22 moves to the left, the left end of the linkage rod 23 moves to the left, thereby propping up the second claw 12 and keeping it away from the ground or the sleeper; it can be seen that the movement logic of the first claw 11 and the second claw 12 is consistent, so the first claw 11 and the second claw 12 are inserted into the ground or away from the ground at the same time; inserting both into the ground or between the sleepers at the same time can enhance the braking ability of the device.

[0037] Similarly, two second claws 12 are arranged at intervals along the width direction of the bucket car 1, and a second cross bar 231 is provided at the left end of the linkage rod 23 along the width direction of the bucket car 1. The second cross bar 231 is rotatably connected to the two second claws 12 at the same time, thereby enhancing the braking ability.

[0038] refer to Figure 1 and Figure 3 Considering that when the bucket car 1 runs to a flat road, it can move forward without traction, it is necessary to drive the device so that it will not be triggered when the road is flat. Therefore, a lock 24 is rotatably connected to the bucket car 1, the middle section of the lock 24 is connected to the bucket car 1, and the rotation axis of the lock 24 is arranged in a horizontal manner. A counterweight block 242 is provided on the lock 24, and its center of gravity is located in the vertical plane of the hinge point (that is, the lock 24 always remains horizontal). A clamping block 241 is provided on the lock 24, and a clamping groove 221 is provided on the limit rod 22.

[0039] You can see Figure 3 In the figure, the lower end of the limiting rod 22 has three connection ports, which are respectively used to connect the first claw 11, the linkage rod 23 and the first claw 11; the front end of the limiting rod 22 has a connection port for connecting the traction rod 21.

[0040] When the bucket is towed in the inclined shaft, the bucket traction wire rope is tightened, and the locking device 24 limit device rotates by the counterweight block 242 to maintain balance. Since the locking device 24 always remains horizontal and forms an angle with the bucket body, the block 241 is withdrawn from the slot 221. At this time, if the traction main rope breaks, the anti-runaway device can be triggered to brake. Therefore; when the bucket car 1 moves to the flat road, the block 241 is inserted into the slot 221. At this time, the left end of the limit rod 22 cannot move, so the first claw 11 and the second claw 12 are always propped up and cannot be inserted between the ground or the sleepers. The anti-runaway device will not be triggered, and the remaining action mechanisms will not act, so that no braking is performed, thereby realizing the flat road locking function and preventing the anti-runaway device from affecting the transportation efficiency.

[0041] Taking into account the assembly accuracy and the change of the inclined shaft angle, the block 241 is provided with a rounded corner. When the bucket truck 1 is located in the inclined shaft, even if the block 241 has not completely withdrawn from the slot 221, if there is a tendency for the left end of the limit rod 22 to move to the right, it can also force the lock 24 to rotate by abutting against the rounded corner, so as to force the block 241 to withdraw from the slot 221.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An anti-runaway mechanism for an inclined shaft skip, characterized in that: The invention comprises a first claw (11), the first claw (11) is rotatably connected to the bucket car (1), and the rotation axis of the first claw (11) is arranged in the horizontal direction; the first claw (11) rotates to insert into the ground or the sleeper; the bucket car (1) is also provided with a limit assembly for limiting the rotation of the first claw (11); The limiting assembly comprises a traction rod (21), the middle section of the traction rod (21) is rotatably connected to the bucket car (1), the rotation axis of the traction rod (21) is arranged in the horizontal direction, one end of the traction rod (21) is used to be connected to the main steel wire rope, the other end of the traction rod (21) is rotatably connected to the limiting rod (22), and the other end of the limiting rod (22) is rotatably connected to the middle section of the first claw (11); when the main steel wire rope is tightened and pulls the traction rod (21), the first claw (11) is retracted; The traction rod (21) is fixedly connected to a first tension spring (31), the other end of the first tension spring (31) is fixedly connected to the skip car (1), and when the first tension spring (31) is in a natural state, the first claw (11) is inserted into the ground or the sleeper; The limit rod (22) is provided with a cross bar (222) along the width direction of the bucket car (1), and a plurality of first claws (11) are arranged at intervals along the width direction of the bucket car (1), and the cross bar (222) is rotatably connected to the plurality of first claws (11) at the same time.

2. The anti-runaway mechanism for the inclined shaft skip according to claim 1 is characterized in that: A second claw (12) is rotatably connected to the skip car (1); the second claw (12) and the first claw (11) are spaced apart along the length direction of the skip car (1); the rotation axis of the second claw (12) is arranged in the horizontal direction; the second claw (12) is rotated to be inserted into the ground or a rail sleeper; one end of the limit rod (22) close to the first claw (11) is rotatably connected to a linkage rod (23); the other end of the linkage rod (23) is rotatably connected to the second claw (12); when the main steel wire rope pulls the traction rod (21), the second claw (12) is retracted.

3. The anti-runaway mechanism for the inclined shaft skip according to claim 2 is characterized in that: The linkage rod (23) is fixedly connected to a second tension spring (32), and the other end of the second tension spring (32) is fixedly connected to the skip car (1); when the second tension spring (32) is in a natural state, the second claw (12) is inserted into the ground or the sleeper.

4. The anti-runaway mechanism for the inclined shaft skip according to claim 3 is characterized in that: The linkage rod (23) is provided with a second crossbar (231), a plurality of the second claws (12) are arranged at intervals along the width direction of the bucket car (1), and the second crossbar (231) is rotatably connected to the plurality of the second claws (12) at the same time.

5. The anti-runaway mechanism for inclined shaft skip according to claim 1 is characterized in that: A locking device (24) is rotatably connected to the bucket car (1), the middle section of the locking device (24) is rotatably connected to the bucket car (1), the rotation axis of the locking device (24) is arranged in the horizontal direction, and the center of gravity of the locking device (24) is located at the hinge point; a clamping block (241) is provided on the locking device (24), and a clamping groove (221) for the clamping block (241) to be rotatably inserted is provided on the limiting rod (22); when the bucket car (1) is located on a flat road, the clamping block (241) is inserted into the clamping groove (221).

6. The anti-runaway mechanism for the inclined shaft skip according to claim 5 is characterized in that: A counterweight block (242) is provided on the locker (24).

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