Coal mine track derailment prevention device

Abstract

The utility model belongs to coal mine equipment technical field, specifically disclose a coal mine track anti -derailing device, including the bottom plate, the surface of bottom plate is provided with anti -derailing subassembly and air jet subassembly, the anti -derailing subassembly includes the strip -shaped limit board fixedly connected on the bottom plate upper surface, the surface of strip -shaped limit board is provided with four limit through -hole, the inner wall of limit through -hole is slidably arranged with the movable push rod. The anti -derailing subassembly of this application is arranged on both sides of the track, the side edge of the tramcar is contacted by using the trapezoidal stopper, and the buffer effect of the movable push rod and the supporting spring is matched, the deviation trend that appears when the tramcar collides can be effectively blocked, the derailment and overturning accident is avoided, the hidden danger that the front and rear vehicles collide easily derails is solved, the supporting spring and the buffer movable plate form the elastic buffer structure, the kinetic energy that the tramcar collision produces can be effectively absorbed, the damage that the impact force causes to the tramcar and the derailment device is reduced, and it is favorable for prolonging the service life of tramcar equipment.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine equipment technology, and specifically relates to a coal mine track anti-derailment device. Background Technology

[0002] In coal mining operations, mine cars, as key carriers of rail transport, often need to travel at high speeds in complex underground environments. During transportation, they frequently encounter scenarios such as connection and intersection between vehicles, which can easily lead to collision accidents.

[0003] Traditional tracks rely primarily on their own structure to restrain mine cars, lacking anti-derailment mechanisms specifically designed for collision scenarios. When a mine car is fully loaded with material, a collision between the front and rear cars can cause the rear car to tilt or veer sideways due to the immense impact, potentially leading to wheels derailment and overturning. Furthermore, the surface of underground mine tracks easily accumulates coal dust, debris, and other impurities, resulting in uneven stress on the contact surface between the mine car wheels and the track. This not only increases rolling resistance but can also cause the mine car to bounce and jam, further exacerbating the risk of derailment.

[0004] To address this, we designed a derailment prevention device for coal mine tracks. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a coal mine track derailment prevention device.

[0006] To achieve the above objectives, this utility model provides a coal mine track anti-derailment device, including a base plate, the surface of which is provided with an anti-derailment component and an air jet component; The anti-derailment assembly includes a strip-shaped limiting plate fixedly connected to the upper surface of the base plate. The surface of the strip-shaped limiting plate has four limiting through holes. Movable push rods are slidably arranged on the inner wall of the limiting through holes. One end of each of the four movable push rods is fixedly connected to a buffer movable plate. A trapezoidal stop block is fixedly connected to the side surface of the buffer movable plate away from the movable push rods.

[0007] In the above technical solution, the inclined surface of the trapezoidal stop block is parallel to the direction of movement of the mine car, the base plate is fixedly installed on the ground by expansion bolts, and the base plate is deployed on both sides of the mine car track.

[0008] Furthermore, a support spring is fitted onto the surface of the movable push rod. One end of the support spring is fixedly connected to the surface of the buffer movable plate, and the other end of the support spring is fixedly connected to the surface of the strip-shaped limiting plate.

[0009] Furthermore, the jet assembly includes a compressed air cushion, a baffle, and a diverting air pipe. The ends of the four movable push rods away from the buffer movable plate are fixedly connected to a squeezing plate. One side of the compressed air cushion is fixedly connected to the surface of the squeezing plate, and the other side of the compressed air cushion is fixedly connected to the surface of the baffle.

[0010] Furthermore, the bottom end of the baffle is fixedly connected to the upper surface of the base plate, and an air inlet pipe is fixedly embedded on the back of the baffle. The output end of the air inlet pipe is fixedly connected to the air inlet end of the compressed air cushion, and a one-way air inlet valve is fixedly installed at the air inlet of the air inlet pipe.

[0011] Furthermore, the diversion air pipe is fixedly installed on the front of the base plate, and the diversion air pipe is located below the trapezoidal block. Several air nozzles are fixedly provided on the surface of the diversion air pipe. Air supply pipes are fixedly provided at both the left and right ends of the diversion air pipe. The end of the air supply pipe away from the diversion air pipe extends backward to the position of the compressed air cushion.

[0012] Furthermore, exhaust pipes are fixedly embedded on both sides of the compressed air cushion, a one-way exhaust valve is fixed on the surface of the exhaust pipe, and an air guide hose is fixedly connected to the output end of the exhaust pipe. The end of the air guide hose away from the exhaust pipe is fixedly connected to the air inlet end of the air supply pipe.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The anti-derailment components deployed on both sides of the track utilize trapezoidal blocks that make close contact with the sides of the mine car. Combined with the buffering effect of the movable push rod and support spring, they can effectively prevent the tendency of the mine car to derail during a collision, avoid derailment and overturning accidents, and solve the hidden danger of derailment when the front and rear cars collide. The support spring and the buffer movable plate form an elastic buffer structure, which can effectively absorb the kinetic energy generated by the collision of the mine car, reduce the impact force on the mine car and the derailment device, and help extend the service life of the mine car equipment.

[0014] 2. By setting up an air jet assembly, when the anti-derailment assembly is activated, the compression plate simultaneously compresses the air cushion and sprays air onto the track surface through the diversion air pipe and air jet nozzle. This can promptly remove coal dust, gravel and other debris from the track, avoiding track jamming or unstable mine car movement caused by debris. No additional power is required, and anti-derailment and cleaning are carried out simultaneously. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the structure proposed in this utility model; Figure 2 This is a top view of the structure proposed in this utility model; Figure 3 for Figure 1 Enlarged structural diagram at point A; Figure 4 for Figure 2 A magnified structural diagram at point B in the middle.

[0016] In the diagram: 1. Base plate; 2. Anti-derailment assembly; 3. Air jet assembly; 201. Strip-shaped limiting plate; 202. Movable push rod; 203. Buffer movable plate; 204. Trapezoidal stop block; 205. Support spring; 206. Compression plate; 301. Compressed air cushion; 302. Baffle; 303. Diverter pipe; 304. Inlet pipe; 305. One-way inlet valve; 306. Nozzle; 307. Air delivery pipe; 308. Exhaust pipe; 309. One-way exhaust valve; 310. Air guide hose. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] like Figures 1-4 The coal mine track anti-derailment device shown includes a base plate 1, and an anti-derailment component 2 and an air jet component 3 are provided on the surface of the base plate 1.

[0019] The jet assembly 3 includes a compressed air cushion 301, a baffle 302, and a diverting air pipe 303. Four movable push rods 202 are fixedly connected to a compression plate 206 at one end away from the buffer movable plate 203. One side of the compressed air cushion 301 is fixedly connected to the surface of the compression plate 206, and the other side of the compressed air cushion 301 is fixedly connected to the surface of the baffle 302.

[0020] The bottom end of the baffle 302 is fixedly connected to the upper surface of the base plate 1, and the back of the baffle 302 is fixedly embedded with an air inlet pipe 304. The output end of the air inlet pipe 304 is fixedly connected to the air inlet end of the compressed air cushion 301, and a one-way air inlet valve 305 is fixedly installed at the air inlet of the air inlet pipe 304.

[0021] The diversion air pipe 303 is fixedly installed on the front of the base plate 1, and the diversion air pipe 303 is located below the trapezoidal block 204. Several jet nozzles 306 are fixedly provided on the surface of the diversion air pipe 303. Air supply pipes 307 are fixedly provided at both the left and right ends of the diversion air pipe 303. The end of the air supply pipe 307 away from the diversion air pipe 303 extends backward to the position of the compressed air cushion 301.

[0022] Both sides of the compressed air cushion 301 are fixedly embedded with exhaust pipes 308. A one-way exhaust valve 309 is fixed on the surface of the exhaust pipe 308, and the output end of the exhaust pipe 308 is fixedly connected to a guide hose 310. The end of the guide hose 310 away from the exhaust pipe 308 is fixedly connected to the air inlet end of the air supply pipe 307.

[0023] It is worth noting that, through its linkage design with the anti-derailment component 2, the track self-cleaning function can be achieved without the need for an additional power source. Compared with traditional manual cleaning or separate power cleaning equipment, this not only reduces equipment costs and energy consumption but also reduces manual maintenance workload and improves operational efficiency. When the mine car collides and pushes the anti-derailment component 2 to activate, the jetting component 3 simultaneously starts jetting, which can promptly remove coal dust, gravel, and other debris from the track, preventing track jamming or mine car instability caused by debris, and further ensuring the smoothness and safety of mine car operation.

[0024] The anti-derailment assembly 2 includes a strip-shaped limiting plate 201 fixedly connected to the upper surface of the base plate 1. The surface of the strip-shaped limiting plate 201 has four limiting through holes. Movable push rods 202 are slidably arranged on the inner wall of the limiting through holes. A buffer movable plate 203 is fixedly connected to one end of the four movable push rods 202. A trapezoidal stop block 204 is fixedly connected to the side surface of the buffer movable plate 203 away from the movable push rods 202.

[0025] The inclined surface of the trapezoidal stop 204 is parallel to the direction of movement of the mine car. The base plate 1 is fixedly installed on the ground by expansion bolts and is deployed on both sides of the mine car track. The surface of the movable push rod 202 is fitted with a support spring 205. One end of the support spring 205 is fixedly connected to the surface of the buffer movable plate 203, and the other end of the support spring 205 is fixedly connected to the surface of the strip limit plate 201.

[0026] It is worth noting that by the trapezoidal stop 204 making close contact with the side of the mine car, and with the buffering effect of the movable push rod 202 and the support spring 205, the tendency of the mine car to tilt or deviate during a collision can be effectively prevented, thus avoiding derailment and rollover accidents at the source and solving the core hidden danger of easy derailment when the front and rear cars collide in the existing technology. On the other hand, the elastic buffer structure formed by the support spring 205 and the buffer movable plate 203 can effectively absorb the huge kinetic energy generated by the collision of the mine car, reduce the impact force on the mine car body and the anti-derailment device itself, reduce the frequency of equipment maintenance, and help extend the service life of the mine car and the device.

[0027] Working principle: When a mine car experiences a tendency to deviate due to a collision, the side of the mine car will first contact the trapezoidal stop 204. Since the inclined surface of the trapezoidal stop 204 is parallel to the direction of movement of the mine car, the lateral impact force of the mine car will push the trapezoidal stop 204 to move away from the track. The trapezoidal stop 204 drives the buffer movable plate 203 to move synchronously. The buffer movable plate 203 pushes the four movable push rods 202 to slide along the limiting through holes on the strip limiting plate 201. During this process, the support springs 205 on the surface of the movable push rods 202 are compressed by the buffer movable plate 203 and the strip limiting plate 201, achieving a buffering and shock absorption effect. At the same time, the blocking effect of the trapezoidal stop 204 effectively limits the deviation of the mine car and prevents the mine car from derailing and overturning.

[0028] As the movable push rod 202 moves, the squeezing plate 206 at the end furthest from the buffer movable plate 203 moves synchronously toward the baffle 302. The squeezing plate 206 applies pressure to the compressed air cushion 301, causing the internal air pressure of the compressed air cushion 301 to rise. When the air pressure inside the compressed air cushion 301 reaches a preset value, the one-way exhaust valve 309 automatically opens, and the high-pressure gas inside the compressed air cushion 301 is discharged through the exhaust pipe 308, transported through the air guide hose 310 to the air supply pipe 307, and then introduced into the diversion air pipe 303 from the air supply pipe 307. After the high-pressure gas is evenly distributed in the diversion air pipe 303, it is sprayed obliquely upward through the evenly arranged nozzles 306, precisely acting on the track surface and blowing coal dust, gravel, and other debris away from the track contact surface. When the offset force of the mine car disappears, the support spring 205, the moving buffer plate 203, the moving push rod 202 and the trapezoidal stop 204 return to their initial positions, the compression plate 206 resets simultaneously, and external air enters the compressed air cushion 301 through the air inlet pipe 304, causing the compressed air cushion 301 to re-inflate and return to its initial state.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A coal mine track derailment prevention device, comprising a base plate (1), characterized in that, The surface of the base plate (1) is provided with an anti-derailment component (2) and an air jet component (3); The anti-derailment component (2) includes a strip-shaped limiting plate (201) fixedly connected to the upper surface of the base plate (1). The surface of the strip-shaped limiting plate (201) is provided with four limiting through holes. Movable push rods (202) are slidably arranged on the inner wall of the limiting through holes. A buffer movable plate (203) is fixedly connected to one end of the four movable push rods (202). A trapezoidal stop block (204) is fixedly connected to the side surface of the buffer movable plate (203) away from the movable push rods (202).

2. The anti-derailment device for coal mine tracks according to claim 1, characterized in that, The inclined surface of the trapezoidal stop (204) is parallel to the direction of movement of the mine car. The base plate (1) is fixed to the ground by expansion bolts and is deployed on both sides of the mine car track.

3. A coal mine track derailment prevention device according to claim 2, characterized in that, The surface of the movable push rod (202) is fitted with a support spring (205). One end of the support spring (205) is fixedly connected to the surface of the buffer movable plate (203), and the other end of the support spring (205) is fixedly connected to the surface of the strip limiting plate (201).

4. A coal mine track derailment prevention device according to claim 1, characterized in that, The jet assembly (3) includes a compressed air cushion (301), a baffle (302), and a diverter air pipe (303). The four movable push rods (202) are fixedly connected to a compression plate (206) at one end away from the buffer movable plate (203). One side of the compressed air cushion (301) is fixedly connected to the surface of the compression plate (206), and the other side of the compressed air cushion (301) is fixedly connected to the surface of the baffle (302).

5. A coal mine track derailment prevention device according to claim 4, characterized in that, The bottom end of the baffle (302) is fixedly connected to the upper surface of the base plate (1), and the back of the baffle (302) is fixedly embedded with an air inlet pipe (304). The output end of the air inlet pipe (304) is fixedly connected to the air inlet end of the compressed air cushion (301), and a one-way air inlet valve (305) is fixedly provided at the air inlet of the air inlet pipe (304).

6. A coal mine track derailment prevention device according to claim 5, characterized in that, The diversion air pipe (303) is fixedly installed on the front of the base plate (1) and the diversion air pipe (303) is located below the trapezoidal block (204). Several jet nozzles (306) are fixedly provided on the surface of the diversion air pipe (303). Air supply pipes (307) are fixedly provided at both the left and right ends of the diversion air pipe (303). The end of the air supply pipe (307) away from the diversion air pipe (303) extends backward to the position of the compressed air cushion (301).

7. A coal mine track derailment prevention device according to claim 6, characterized in that, Both sides of the compressed air cushion (301) are fixedly embedded with exhaust pipes (308), and a one-way exhaust valve (309) is fixed on the surface of the exhaust pipe (308). The output end of the exhaust pipe (308) is fixedly connected to a duct hose (310), and the end of the duct hose (310) away from the exhaust pipe (308) is fixedly connected to the air inlet end of the air supply pipe (307).

Images