CN219565098U - Mining pneumatic car arrester - Google Patents

Abstract

The utility model relates to the field of mine transportation, in particular to a mining pneumatic car arrester, which comprises a base, a track, a car arrester mechanism and a pneumatic mechanism, wherein the track is symmetrically paved on the whole upper part of the base, a supporting rod is fixed on the outer side of the track, two ends of the supporting rod are fixed through fixing seats, and a car arrester gate is connected to the middle part of the supporting rod in a sliding manner; a spring is sleeved on the supporting rod between the car-stopping brake and the fixed seat, one end of the spring is abutted to the fixed seat, and the other end of the spring is abutted to the car-stopping brake; the middle part of the outermost side of the vehicle-stopping brake far away from the track is fixedly provided with a second connecting rod, and the pneumatic mechanism is connected with the end part of the second connecting rod and is used for driving the vehicle-stopping brake to rotate around the supporting rod so as to finish switching between two states of vehicle stopping and opening. When the car is in operation, the buffer is formed by the extrusion spring of the car-blocking brake when the car runs to the car-blocking brake, so that the car-blocking brake is prevented from being damaged by larger impact force, and meanwhile, articles in the car can be prevented from overflowing the car due to larger inertia to influence the operation of a subsequent pneumatic mechanism.

Description

Mining pneumatic car arrester

Technical Field

The utility model relates to the field of mine track transportation, in particular to a pneumatic car arrester for mines.

Background

The transportation tunnel in the coal mine generally has a certain gradient, and as the object transported by the mine car is supporting material or coal, the transportation weight is relatively large, and steel rails are generally paved in the transportation tunnel to be matched with the mine car for use, so that the mine car is prevented from damaging the bottom plate of the transportation tunnel, and meanwhile, the transportation efficiency can be improved. When the mine car is used for transporting supporting materials or coal, the mine car needs to be stopped at a designated position according to the transportation scheduling requirement, but the track has a certain gradient, the mine car cannot be stopped at the designated position directly, and therefore, the mine car is limited at the designated position of the track by the common car stopper; meanwhile, the car arrester is also the most commonly used car catcher in coal mines.

The heavy and self-weight influences of the mine car are received, the heavy car arrester is generally adopted to limit the mine car, and manual control procedures are tedious and laborious for the heavy car arrester, so that a solution is provided in the prior art CN 214823315U: the pneumatic mechanism drives the locking mechanism to lock or separate from the track through the actuating mechanism, the actuating mechanism comprises two flexible traction mechanisms and a connecting rod balancing mechanism, and the expansion or folding of the connecting rod balancing mechanism drives the two flexible traction mechanisms to drive a pair of car blocking brakes to clamp or separate from the track. However, the flexible traction mechanism is influenced by the weight of the mine car and the self weight of the mine car, the inertia of the mine car is large, the impact on the car arrester is large, the car arrester is easy to damage, and the flexible traction mechanism is easy to deform after working under the working condition for a long time. Meanwhile, transported articles in the mine car are easy to overflow due to large inertia and scatter near the car arrester, so that follow-up actions of the executing mechanism are affected, and cleaning work is difficult and dangerous when the mine car stays. Because only one set of executing mechanism is arranged, the fault tolerance of the car arrester during working is poor. In addition, in the case of large inertia of the mine car, the accident of turning over can be even caused in serious cases.

Disclosure of Invention

In order to solve the problems that the existing car arrester is easy to be damaged and deformed by impact and has poor fault tolerance, the utility model provides a mining pneumatic car arrester, which has the following specific technical scheme:

the vehicle-stopping device comprises a base, rails, a vehicle-stopping mechanism and a pneumatic mechanism, wherein the whole base is a rectangular frame, two parallel rails are symmetrically paved perpendicular to the base along the width direction of the base, and the vehicle-stopping mechanism is fixed on the outer sides of the two rails; the car stopping mechanism comprises a supporting rod, a fixing seat and a car stopping brake; the support rods are arranged outside the track in parallel, two ends of the support rods are fixed on the base through the fixing seats, one end of the car-blocking brake is connected to the middle of the support rods in a sliding mode, and the other end of the car-blocking brake can be pressed on the track in a car-blocking state; a spring is sleeved on the supporting rod between the car-stopping brake and the fixed seat, one end of the spring is abutted to the fixed seat, and the other end of the spring is abutted to the car-stopping brake; the middle part of the outermost side of the vehicle-stopping brake far away from the track is fixedly provided with a second connecting rod, and the pneumatic mechanism is connected with the end part of the second connecting rod and used for driving the vehicle-stopping brake to rotate around the supporting rod so as to finish switching between two states of vehicle stopping and opening.

Further, the pneumatic mechanism comprises a first rotating shaft, a connecting rod balancer, a first connecting rod and a cylinder; the first rotating shaft is rotationally connected to the middle parts of two long sides of the base, a T-shaped connecting rod balancer is fixed in the middle of the first rotating shaft, the lower part of the T-shaped connecting rod balancer is fixedly connected to the middle of the first rotating shaft, two ends of the T-shaped connecting rod balancer are respectively rotationally connected with a first connecting rod, the other end of the first connecting rod is rotationally connected to a second connecting rod, U-shaped connecting rod devices are respectively fixed at two ends of the first connecting rod, a rotating shaft is arranged at the open end of each U-shaped connecting rod device, the rotating shaft penetrates through the second connecting rod and an opening of the connecting rod balancer, the other end of each U-shaped connecting rod device is fixed to the first connecting rod, and the cylinder is used for driving the first rotating shaft to rotate.

Further, a third connecting rod and a fourth connecting rod are arranged outside the front side of the long side of the base, one end of the first rotating shaft extends out of the base and is fixedly connected with one end of the third connecting rod, the other end of the third connecting rod is rotationally connected with the fourth connecting rod, the other end of the fourth connecting rod is fixedly connected with a telescopic rod of the air cylinder, and the length of the fourth connecting rod is collinear with that of the telescopic rod.

Further, still include chain drive mechanism, chain drive mechanism is including being located the outside operation box of the long limit rear side of base, the level is provided with the second pivot that two intervals set up in the operation box, the end that deviates from mutually of second pivot is fixed through the pivot supporting seat that is fixed in the long limit of base respectively, is connected with explosion-proof engine at the other end of second pivot, and explosion-proof engine is fixed in the long limit of base equally, and every second pivot winding has two chains, and two chains of one of them second pivot are connected in the car brake back, and two chains of another second pivot are connected in the car brake inboard.

Further, a chain clamping groove is formed in the lower portion of the operation box and used for guiding the chain to move.

Further, the explosion-proof engine is connected with an explosion-proof controller through an electric wire, and a mechanical switch is arranged on the explosion-proof controller.

The beneficial effects are that: according to the car blocking mechanism, the car blocking gate can slide and rotate along the supporting rod instead, and the buffer spring is arranged, so that when a car is blocked, the buffer is formed by the extrusion spring of the car blocking gate when the car runs to the car blocking gate, the car blocking gate is prevented from being damaged by larger impact force, and meanwhile articles in the car can be prevented from overflowing the car due to larger inertia to influence the work of a subsequent pneumatic mechanism. In addition, two sets of driving mechanisms, namely a pneumatic mechanism and a chain driving mechanism, are arranged, so that the fault tolerance is high.

Drawings

FIG. 1 is a schematic view of the overall structure of the pneumatic car arrester of the present utility model in a closed state;

FIG. 2 is a schematic view of the overall structure of the pneumatic car arrester of the present utility model in an open state;

FIG. 3 is a schematic cross-sectional view of the pneumatic car arrester of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the pneumatic car arrester of FIG. 2;

FIG. 5 is a schematic diagram of the operation of the choke and pneumatic mechanisms of FIG. 1 in the choke configuration;

FIG. 6 is a schematic view of the operation of the vehicle barrier mechanism and pneumatic mechanism in the open position of FIG. 2;

FIG. 7 is a schematic diagram of the structure of the operation box;

in the figure: 1. a base; 2. a track; 3. a support rod; 4. a fixing seat; 5. a brake; 6. a spring; 7. a first rotating shaft; 8. a link balancer; 9.U shaped linkage; 10. a first link; 11. a second link; 12. a third link; 13. a fourth link; 14. a cylinder; 15. an operation box; 16. a second rotating shaft; 17. a rotating shaft supporting seat; 18. an explosion-proof engine; 19. an electric wire; 20. an explosion-proof controller; 21. a mechanical switch; 22. a chain; 23. a chain clamping groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-2, the mining pneumatic car arrester of the present utility model comprises a base 1, a track 2, a car arresting mechanism, a pneumatic mechanism and a chain driving mechanism; the car-blocking mechanism forms a car-blocking state (closed state) pressed on the track 2 and a non-car-blocking state (open state) separated from the track 2 in a rotating mode, the pneumatic mechanism is used for driving the car-blocking mechanism to rotate to finish switching of the two states, the action of the chain driving mechanism is the same as that of the pneumatic mechanism, and as a standby scheme, the chain driving mechanism is adopted to finish switching of the two states when the pneumatic mechanism fails.

The whole base 1 is a rectangular frame, two parallel rails 2 are symmetrically paved along the width direction of the base 1 and perpendicular to the base 1, and a car stopping mechanism is fixed on the outer sides of the two rails 2; the car stopping mechanism comprises a supporting rod 3, a fixed seat 4, a car stopping brake 5 and a spring 6; the support rod 3 is arranged outside the track 2 in parallel, two ends of the support rod are respectively fixed on the base 1 through the fixing seats 4, one end of the car stop 5 is connected to the middle of the support rod 3 in a sliding manner and can rotate around the support rod 3, and the other end of the car stop 5 can be pressed on the track 2 in a car stop state; the springs 6 are slidably arranged on the support rods 3 between the car-blocking brake 5 and the fixed seat 4, the number of the springs is 4, every 2 springs are positioned on one support rod 3 and are separated by the car-blocking brake 5, one end of each spring 6 is abutted to the fixed seat 4, and the other end of each spring is abutted to the car-blocking brake. A second connecting rod 11 is fixed in the middle of the outermost side of the brake far away from the track 2.

As shown in fig. 3 to 6, the pneumatic structure includes a first rotation shaft 7, a link balancer 8, a first link 10, a third link 12, a fourth link 13, and a cylinder 14; the first rotating shaft 7 is rotatably connected to the middle parts of two long sides of the base 1 and is parallel to the short sides, the lower part of a T-shaped connecting rod balancer 8,T-shaped connecting rod balancer 8 is fixedly connected to the middle part of the first rotating shaft 7, two ends of the T-shaped connecting rod balancer 8 are respectively rotatably connected with a first connecting rod 10, the other end of the first connecting rod 10 is rotatably connected with a second connecting rod 11, in order to adapt to the change of the brake 5 along the position of the supporting rod 3, two ends of the first connecting rod 10 are respectively fixedly provided with a rotating shaft parallel to the supporting rod 3, the rotating shaft penetrates through the second connecting rod 11 and an opening of the connecting rod balancer 8, the other end of the U-shaped connecting rod 9 is fixed to the end of the first connecting rod 10, and in order to improve the strength for processing convenience, the U-shaped connecting rod 9 and the first connecting rod 10 are integrally formed; the outer part of the front side of the long side of the base 1 is provided with a third connecting rod 12, a fourth connecting rod 13 and a cylinder 14 which are sequentially connected, one end of the first rotating shaft 7 extends out of the base 1 and is fixedly connected with one end of the third connecting rod 12, the other end of the third connecting rod 12 is rotationally connected with the fourth connecting rod, the other end of the fourth connecting rod is fixedly connected with a telescopic rod of the cylinder 14, and the length direction of the fourth connecting rod is collinear with the length direction of the telescopic rod.

The chain driving mechanism comprises an operation box 15 positioned outside the rear side of the long side of the base 1, two second rotating shafts 16 which are arranged at intervals are horizontally arranged in the operation box 15, the opposite ends of the second rotating shafts 16 are respectively fixed through rotating shaft supporting seats 17 fixed on the long side of the base 1, the other ends of the second rotating shafts 16 are connected with explosion-proof engines 18 which are also fixed on the long side of the base 1, each second rotating shaft 16 is wound with two chains 22, after the two chains 22 of one second rotating shaft 16 are led out from a chain clamping groove 23 at the lower part of the operation box 15, the two chains 22 of the other second rotating shaft 16 are connected to the back part of the vehicle-stopping brake 5, and after the two chains 22 of the other second rotating shaft 16 are led out from the chain clamping groove 23 at the lower part of the operation box 15, the chain is connected to the inner side of the vehicle-stopping brake 5. The explosion-proof engine 18 is connected with the explosion-proof controller 20 through an electric wire 19, a mechanical switch 21 is arranged on the explosion-proof controller 20, the explosion-proof controller 20 can be arranged in an operation box, as shown in fig. 7, and as a parallel scheme, the explosion-proof controller 20 can also be arranged on the side wall of a nearby transportation roadway to improve operation safety.

The working process of the mining pneumatic car arrester is as follows:

(1) Stopping: when a mining mine car passes through the track 2 and needs to execute a car stopping procedure, the air cylinder 14 is started, the telescopic rod of the air cylinder is contracted inwards, the third connecting rod 12 is driven to rotate clockwise through the fourth connecting rod 13, the first rotating shaft 7 and the rod balancer 8 rotate clockwise together through the rotation of the third connecting rod 12, the first connecting rod 10 positioned on the right upper side of the connecting rod balancer 8 is pushed to the right side through the clockwise rotation of the connecting rod balancer 8, meanwhile, the first connecting rod 10 positioned on the left lower side of the connecting rod balancer 8 is pushed to the left side, the second connecting rod 11 is further pushed to rotate, the right car stopping brake 5 rotates anticlockwise through the pushing of the second connecting rod 11, and the car stopping of the car stopping brake is realized through the process. When the mining mine car is parked, the mining mine car is abutted to the car blocking gate, a buffer effect is formed by the extrusion spring 6 of the car blocking gate under the influence of inertia, the car blocking gate is prevented from being subjected to larger impact force so as to damage the car blocking device, and meanwhile articles in the mine car are prevented from overflowing the mine car due to larger inertia.

(2) Opening: when the car stopping is finished, when the car stopping brake 5 needs to be opened, the cylinder 14 is started again, the telescopic rod of the cylinder extends outwards, the third connecting rod 12 is driven to rotate anticlockwise through the fourth connecting rod 13, the first rotating shaft 7 and the rod balancer 8 rotate anticlockwise together through the rotation of the third connecting rod 12, the first connecting rod 10 positioned on the upper right side of the rod balancer 8 is pushed leftwards through the anticlockwise rotation of the rod balancer 8, meanwhile, the first connecting rod 10 positioned on the lower left side of the rod balancer 8 is pushed rightwards, the second connecting rod 11 is further pushed to rotate, the right car stopping brake 5 rotates clockwise through the pushing of the second connecting rod 11, the left car stopping brake rotates anticlockwise, and the process realizes the opening of the car stopping brake and the spring is extruded to return to a recovery state.

When the pneumatic mechanism fails, the mechanical switch 21 on one side is opened to drive the second rotating shaft 16 to rotate forwards by the engine 18 to wind the chain 22, so that the chain 22 arranged on the inner side of the brake is pulled, the brake is clamped on the track 2 to finish the car stopping, the second rotating shaft 16 on the other side rotates reversely at the moment, and the chain 22 is released to adapt to the pulling of the back of the brake. When the vehicle brake is opened, the mechanical switch 21 on the other side is opened, so that the engine 18 on the other side drives the second rotating shaft 16 to rotate positively and the chain 22 is wound, thereby pulling the chain 22 arranged on the back of the vehicle brake, so that the vehicle brake is separated from the track 2, the second rotating shaft 16 on the opposite side rotates reversely, and the chain 22 is released to adapt to the pulling of the inner side of the vehicle brake.

During the operation of the pneumatic mechanism, the chain 22 is kept in a loose state, so that the second rotating shaft 16 does not rotate during the process that the pneumatic mechanism drives the brake 5 to rotate.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. The mining pneumatic car arrester comprises a base, rails, a car arrester mechanism and a pneumatic mechanism, wherein the whole base is a rectangular frame, two parallel rails are symmetrically paved along the width direction of the base and perpendicular to the base, and the car arrester mechanism is fixed on the outer sides of the two rails; the car stopping mechanism comprises a supporting rod, a fixing seat and a car stopping brake; the car-stopping brake is characterized in that the supporting rods are arranged outside the track in parallel, two ends of the supporting rods are fixed on the base through the fixing seats, one end of the car-stopping brake is connected to the middle of the supporting rods in a sliding mode, and the other end of the car-stopping brake can be pressed on the track in a car-stopping state; a spring is sleeved on the supporting rod between the car-stopping brake and the fixed seat, one end of the spring is abutted to the fixed seat, and the other end of the spring is abutted to the car-stopping brake; the middle part of the outermost side of the vehicle-stopping brake far away from the track is fixedly provided with a second connecting rod, and the pneumatic mechanism is connected with the end part of the second connecting rod and used for driving the vehicle-stopping brake to rotate around the supporting rod so as to finish switching between two states of vehicle stopping and opening.

2. The mining pneumatic car arrester of claim 1, wherein the pneumatic mechanism includes a first shaft, a link balancer, a first link, and a cylinder; the first rotating shaft is rotationally connected to the middle parts of two long sides of the base, a T-shaped connecting rod balancer is fixed in the middle of the first rotating shaft, the lower part of the T-shaped connecting rod balancer is fixedly connected to the middle of the first rotating shaft, two ends of the T-shaped connecting rod balancer are respectively rotationally connected with a first connecting rod, the other end of the first connecting rod is rotationally connected to a second connecting rod, U-shaped connecting rod devices are respectively fixed at two ends of the first connecting rod, a rotating shaft is arranged at the open end of each U-shaped connecting rod device, the rotating shaft penetrates through the second connecting rod and an opening of the connecting rod balancer, the other end of each U-shaped connecting rod device is fixed to the first connecting rod, and the cylinder is used for driving the first rotating shaft to rotate.

3. The mining pneumatic car arrester of claim 2, wherein a third connecting rod and a fourth connecting rod are arranged outside the front side of the long side of the base, one end of the first rotating shaft extends out of the base and is fixedly connected with one end of the third connecting rod, the other end of the third connecting rod is rotatably connected with the fourth connecting rod, the other end of the fourth connecting rod is fixedly connected with a telescopic rod of the air cylinder, and the length of the fourth connecting rod is collinear with the length of the telescopic rod.

4. The mining pneumatic car arrester of claim 1, further comprising a chain driving mechanism, wherein the chain driving mechanism comprises an operation box positioned outside the rear side of the long side of the base, two second rotating shafts arranged at intervals are horizontally arranged in the operation box, the opposite ends of the second rotating shafts are respectively fixed through rotating shaft supporting seats fixed on the long side of the base, the other ends of the second rotating shafts are connected with explosion-proof engines, the explosion-proof engines are also fixed on the long side of the base, two chains are wound on each second rotating shaft, two chains of one second rotating shaft are connected to the back of the car arrester, and two chains of the other second rotating shaft are connected to the inner side of the car arrester.

5. The mining pneumatic car arrester of claim 4, wherein the lower portion of the operating box is provided with a chain clamping groove for guiding the movement of the chain.

6. The mining pneumatic car arrester of claim 5, wherein the explosion-proof engine is connected to an explosion-proof controller via an electrical wire, and the explosion-proof controller is provided with a mechanical switch.