A crawler-hauled rail equipment train

Abstract

The present invention belongs to the field of auxiliary transportation in the tunnel of the fully mechanized working face of a coal mine, and specifically is a track-drawn rail equipment train. It includes a track-walking traction bracket, a traction cylinder, a mutual support device, a self-locking flatbed car and a cable storage car. The track-walking traction bracket is located at the front end of the whole set of equipment, the track-walking traction bracket straddles the outside of the tunnel track, the track-walking traction bracket is hinged with two traction cylinders, the other end of the traction cylinder is hinged with the mutual support device, the base of the mutual support device is located on the sleepers on the inner side of the track, and the rear of the mutual support device is connected to the self-locking flatbed car. The wheels of the self-locking flatbed car are pressed above the track, and adjacent self-locking flatbed cars are connected by connecting plates. Two connectors are welded at the rear end of the last flatbed car, which is connected to the rear cable storage car through two telescopic connecting rods, and several cable storage cars are connected by vehicle connecting rods. The present invention reduces labor intensity and improves the safety of auxiliary transportation.

Description

Technical Field

[0001] The invention belongs to the field of auxiliary transportation of a fully mechanized mining working face in an underground coal mine, and in particular is a crawler-drawn rail equipment train. Background Art

[0002] The equipment train traction method in the drift tunnel of the underground fully-mechanized mining working face in coal mines generally has complex procedures, low efficiency and poor maneuverability. During the pulling process, the flatbed truck is very prone to accidents such as running away, falling off the track and scratching the card, which poses a huge safety hazard and puts great pressure on on-site safety management.

[0003] At present, there are two main supporting forms of underground traction equipment trains in coal mines:

[0004] 1. Complete system of front winch + wire rope + flatbed car + rear winch:

[0005] (1) System composition and layout:

[0006] The front winch and the rear winch are used together to pull the whole set of equipment flatbed. When there is a slope in the roadway, the equipment is pulled uphill and put downhill. The wire rope is the medium for pulling and the flatbed is the bearing mechanism for the pump station, power supply, switch, etc. This set of equipment needs to lay tracks in advance and be used in the drift roadway.

[0007] (2) Problems with the system:

[0008] The installation of the winch requires prefabrication and pressure columns, and the winch needs to move forward continuously as the equipment train moves. During the forward movement, it is difficult to fix the anti-runaway device of the moving train. In the uphill and downhill sections of the roadway, the traction and lowering of the winch must be coordinated with a single column, and the safety factor is low when operated by personnel. There is a safety hazard of wire rope breakage when traction.

[0009] 2. Complete system of front-anchoring traction device + push-pull cylinder + flatbed car + cable storage car:

[0010] (1) System composition and layout:

[0011] Its anchoring and traction device and the rear flatbed car serve as fulcrums for each other, and the middle push-pull cylinder is used to achieve mutual pulling and movement. Each flatbed car has its own track, and the cable storage car integrates storage cables to achieve cable storage and movement with the entire machine.

[0012] (2) Problems in the system:

[0013] This type of mobile train is suitable for hardened roadway floors, but not for roadways with soft floors or existing tracks. Summary of the invention

[0014] In order to solve the above problems, the present invention provides a crawler-hauled rail equipment train.

[0015] The present invention adopts the following technical scheme: a crawler-traction rail equipment train, including a crawler-travel traction bracket, a traction cylinder, a mutual support device, a self-locking flatbed car and a cable storage car, the crawler-travel traction bracket is located at the front end of the whole set of equipment, the crawler-travel traction bracket straddles the outside of the laneway track, the crawler-travel traction bracket is hinged with two traction cylinders, the other end of the traction cylinder is hinged with the mutual support device, the base of the mutual support device is located on the sleepers on the inner side of the track, and the rear of the mutual support device is connected to the self-locking flatbed car. The wheels of the self-locking flatbed car are pressed above the track, and adjacent self-locking flatbed cars are connected by connecting plates. Two connectors are welded at the rear end of the last flatbed car, which is connected to the rear cable storage car through two telescopic connecting rods, and several cable storage cars are connected by vehicle connecting rods.

[0016] Furthermore, the crawler walking traction bracket includes a travel reducer, a travel motor, a frame, a track chain, a guide tensioning device, an emulsion tank, a top support column and a pump station. The frame is provided with four cast steel spherical column sockets, and four top support columns are arranged in the four cast steel spherical column sockets. Each top support column is equipped with a rotatable column top cover. Both sides of the frame are stacked box structures to form a crawler frame. The front wheels of the frame are equipped with a travel reducer and a travel motor, and the rear wheels of the frame are equipped with a guide tensioning device; the pump station and the emulsion tank are installed on the frame.

[0017] Furthermore, the mutual support device includes mutual support columns and a base, two mutual support columns are arranged on the base, two cross connectors are installed at the front end of the base, and two traction cylinders are respectively connected and fixed to the front end crawler walking traction bracket and the rear end cross connector through pin shafts.

[0018] Furthermore, the self-locking flatbed cart includes running wheels, a body, and a self-locking braking device. The self-locking flatbed cart is equipped with 4 running wheels at the bottom, and two sets of self-locking braking devices are embedded in the body, one set of self-locking braking devices is located at the front end of the front wheel, and the other set of self-locking braking devices is located at the rear end of the rear wheel. The upper end of the self-locking braking device is hingedly connected to the body, and the middle part of the self-locking braking device is hingedly connected to one end of the push cylinder, and the push cylinder is fixed on the body. The self-locking braking device includes a brake cylinder, a brake block and a rocker arm assembly. Two sets of rocker arm assemblies are symmetrically arranged, and the upper end of the rocker arm assembly is hinged to the body. The brake cylinder is connected between the middle parts of the two sets of rocker arm assemblies, and the brake block is installed on the inner side of the lower end of the rocker arm assembly.

[0019] Furthermore, the cable storage vehicle comprises a vehicle body, a cable support frame, a cable bracket, a telescopic connecting rod and a connecting head. The outer cylinder of the telescopic connecting rod is fixed to the vehicle body through a rotating connecting head, and the front end of the inner cylinder of the telescopic connecting rod is fixed to the connecting head on the front cable storage vehicle to realize the connection between adjacent cable workshops; the cable support frame comprises an upper support rod and a lower sleeve, the lower sleeve is provided with a pin shaft hole, and a limit pin shaft for adjusting the height of the support rod is provided in the pin shaft hole, and the cable support frames of the two adjacent vehicles are connected through the cable bracket.

[0020] Furthermore, the cable bracket includes a plurality of load-bearing connecting rods connected in sections, the ends of adjacent load-bearing connecting rods are hinged through a load-bearing round steel pipe, the upper side of the load-bearing round steel pipe carries the cable, and the cable is provided with fixed pressure blocks on the upper and lower sides respectively, and the fixed pressure blocks on both sides are fixedly connected by screws.

[0021] Compared with the prior art, the present invention combines the structure and characteristics of underground drift equipment, the undulating floor in the tunnel, and the ups and downs of the tunnel, fully utilizes the track in the tunnel, and develops a safe and efficient crawler-drawn equipment train.

[0022] 1. This equipment can be used in rail tunnels with complex geological conditions, and can be moved as mining progresses, making it more flexible. At the same time, it greatly reduces the labor intensity of workers and improves the safety of auxiliary transportation.

[0023] 2. The crawler-type walking part has large traction capacity, simple operation, safety and reliability, and can effectively prevent runaway accidents caused by broken wire ropes. With the push-pull cylinder and the mutual support device, it can ensure that the equipment train can travel on a slope of ±10°.

[0024] 3. The self-locking flatbed truck has its own brake mechanism, which adopts a spring-cylinder form to achieve instant braking. It has a simple structure and good braking effect, and can effectively prevent vehicle slippage and injury accidents on uphill and downhill sections of the lane.

[0025] 4. The cable storage vehicle adopts a mechanical limit-pull structure design, which does not require a complex control system and is easy to operate. The cable telescopic beam can be adjusted automatically according to the height of the lane, and has good adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a crawler-hauled rail equipment train;

[0027] Figure 2 It is a schematic diagram of the traction device structure;

[0028] Figure 3 It is a schematic diagram of the structure of a self-locking flatbed truck;

[0029] Figure 4 It is a schematic diagram of the self-locking structure;

[0030] Figure 5 This is a schematic diagram of the cable storage vehicle structure;

[0031] Figure 6 is a schematic diagram of the cable bracket structure;

[0032] In the figure: 1. crawler walking type traction bracket; 2. traction cylinder; 3. mutual support device; 4. self-locking flatbed car; 5. cable storage car; 6. vehicle connecting rod; 7. travel reducer; 8. travel motor; 9. frame; 10. crawler chain; 11. guide tensioning device; 12. emulsion tank; 13. top support column; 14. pump station; 15. cross connector; 16. mutual support column; 17. base; 18. self-locking brake device; 19. travel wheel; 20. vehicle body; 21. push cylinder; 22. brake cylinder; 23. brake block; 24. vehicle body; 25. cable support frame; 26. rotating connector; 27. telescopic connecting rod; 28. cable bracket; 29. ​​connector; 30. track, 31. load-bearing round steel pipe, 32. fixed pressure block, 33. load-bearing connecting rod, 34. screw, 35. cable. DETAILED DESCRIPTION

[0033] like Figure 1 As shown, a complete set of transport equipment for crawler-traction rail equipment trains includes a crawler-travel traction bracket 1, a traction cylinder 2, a mutual support device 3, a self-locking flatbed car 4 and a cable storage car 5. The crawler-travel traction bracket 1 is located at the front end of the whole set of equipment, straddling the outside of the tunnel track 30, and is hinged to two traction cylinders 2. The traction cylinder 2 is hinged to the mutual support device 3 through a cross connector 15. The base of the mutual support device is located on the sleepers on the inner side of the two root tracks 30, and the rear part is connected to the self-locking flatbed car 4 through a connecting plate. The wheels of the self-locking flatbed car 4 are pressed above the track. Adjacent flatbed cars are connected by connecting plates. Two connectors 29 are welded to the rear end of the last flatbed car, which is connected to the rear cable storage car 5 through two telescopic connecting rods 27.

[0034] like Figure 2As shown, the traction device includes a crawler-type traction bracket 1, a traction cylinder 2, and a mutual support device 3. Among them, the crawler-type traction bracket 1 includes a travel reducer 7, a travel motor 8, a frame 9, a crawler chain 10, a guide tensioning device 11, an emulsion tank 12, a top support column 13, and a pump station 14. The frame 9 is provided with four cast steel spherical column sockets, and four top support columns 13 are arranged. Each column is equipped with a rotatable column top cover to adapt to different tunnel roof inclination angles. The two sides of the frame 9 are stacked box-shaped structures to form a crawler frame. The front wheel is equipped with a travel reducer 7 and a travel motor 8, and the rear wheel is equipped with a guide tensioning device 11. The pump station 14 and the emulsion tank 14 are installed on the frame 9. The mutual support device 3 includes a mutual support column 16 and a base 17. Two mutually supporting columns 16 are arranged on a base 17. Two cross connectors 15 are installed at the front end of the base 17. Two traction cylinders 2 are respectively connected and fixed to the front crawler walking traction bracket 1 and the rear cross connector 15 through pins.

[0035] like Figure 3 As shown, the self-locking flatbed trolley 4 includes a running wheel 19, a vehicle body 20, and a self-locking brake device 18. The self-locking flatbed trolley 4 is equipped with four running wheels 19, and runs on a track 30. Two sets of self-locking brake devices 18, one in front and one in the back, are embedded in the vehicle body 20. The front self-locking brake device 18 is located at the front end of the front wheel, and the rear self-locking brake device 18 is located at the rear end of the rear wheel.

[0036] like Figure 4 As shown, the self-locking flatbed trolley 4 includes running wheels 19, a vehicle body 20, and a self-locking brake device 18. Four running wheels 19 are installed at the bottom of the self-locking flatbed trolley 4. Two groups of self-locking brake devices 18 are embedded in the vehicle body 20. One group of self-locking brake devices 18 is located at the front end of the front wheel, and the other group of self-locking brake devices 18 is located at the rear end of the rear wheel. The upper end of the self-locking brake device 18 is hinged to the vehicle body 20, and the middle part of the self-locking brake device 18 is hinged to one end of the push cylinder 21. The push cylinder 21 is fixed on the vehicle body 20. The self-locking brake device 18 includes a brake cylinder 22, a brake block 23 and a rocker arm assembly 36. The rocker arm assembly 36 is symmetrically arranged in two groups. The upper end of the rocker arm assembly 36 is hinged to the vehicle body 20, the brake cylinder 22 is connected between the middle parts of the two groups of rocker arm assemblies 36, and the brake block 23 is installed on the inner side of the lower end of the rocker arm assembly 36.

[0037] like Figure 5As shown, the cable storage vehicle 5 includes a vehicle body 24, a cable support frame 25, a cable bracket 28, a telescopic connecting rod 27, and a connector 29. The outer cylinder of the telescopic connecting rod 27 of the vehicle is fixed to the vehicle body 24 through a rotating connector 26, and can achieve 30° swing up and down. The front end of the inner cylinder of the telescopic connecting rod 27 is fixed to the connector 29 on the front cable storage vehicle to achieve the connection of adjacent cable workshops. The cable support frame 25 includes an upper support rod and a lower sleeve. The lower sleeve is provided with a pin shaft hole, and a limit pin shaft for adjusting the height of the support rod is provided in the pin shaft hole. The support rod can adjust the system height according to the lane conditions by the limit pin shaft. The cable bracket 28 connects the cable support frames 25 of two adjacent vehicles, and can be extended following the pulling of the telescopic connecting rod 27, and is limited according to the telescopic connecting rod 27.

[0038] like Figure 6 As shown, the cable bracket 28 includes a plurality of load-bearing connecting rods 33 connected in sections, and the ends of adjacent load-bearing connecting rods 33 are hinged through a load-bearing round steel tube 31. The upper side of the load-bearing round steel tube 31 carries a cable 35. The cable 35 is provided with fixed pressure blocks 32 on the upper and lower sides respectively, and the fixed pressure blocks 32 on both sides are fixedly connected by screws 34.

[0039] In specific implementation, there are two working conditions:

[0040] (1) Pulling in near-horizontal tunnels:

[0041] The crawler-type traction support 1 straddles both sides of the track 30, and the top support column 13 and the mutual support column 16 remain in a retracted state. The traction cylinder 2 is locked by a hydraulic one-way lock. At this time, the traction cylinder 2 is equivalent to a connecting rod, and the crawler mechanism is used to tow the rear set of flatbed vehicles.

[0042] (2) Pulling in a steep slope tunnel:

[0043] The crawler-type traction support 1 straddles both sides of the track 30. First, the top support column 13 remains in a retracted state, the mutual support column 16 extends out to support the tunnel roof, the mutual support device 3 forms an anchor fulcrum, the traction cylinder fluid supply is adjusted, and the crawler-type traction support 1 drives the piston rod of the traction cylinder 2 to move forward a displacement stroke. Subsequently, the mutual support column 16 remains in a retracted state, the top support column 13 extends out to support the tunnel roof, the crawler-type traction support 1 forms an anchor fulcrum, the traction cylinder 2 piston rod retracts a displacement stroke, drives the mutual support device 3, the self-locking flatbed car 4, and the cable storage car 5 forward, and completes a pulling and moving work cycle. During the entire pulling and moving process, the crawler-type traction support 1 and the mutual support device 3 are always supported on one side to form upper and lower anchor points, effectively preventing the complete set of equipment from slipping.

[0044] During the pulling and moving process of the self-locking flatbed vehicle 4, the self-locking brake device 18 is kept retracted in the vehicle body 20 in a brake-released state (such as Figure 3 As shown in the figure, when the vehicle is parked for a long time or emergency braking is required in a steep lane, the self-locking brake device 18 drives the connecting rod to rotate by pushing the cylinder 21 until the self-locking brake device 18 forms a 90° angle with the track 30, and the brake cylinder 22 drives the brake block 23 to clamp the track 30 to achieve braking.

[0045] The cable storage vehicle 5 is connected head to tail by a telescopic connecting rod 27. During the process of pulling the flatbed vehicle 4, the outer tube of the telescopic connecting rod 27 is fixed on the vehicle body 24, and the inner rods are extended one by one. During this process, the cable bracket 28 is extended and unfolded simultaneously with the extension of the telescopic connecting rod.

[0046] The present invention solves the problem of auxiliary transportation in underground coal mine drifts, avoids the safety hazards of track winch-wire rope traction in the prior art, such as runaway and wire rope breakage, and provides a complete set of transport equipment for crawler-traction track equipment trains, which can travel on a slope of ±10°.

Claims

1. A crawler-hauled rail equipment train, characterized in that: The crawler-type traction support (1) comprises a crawler-type traction support (1), a traction oil cylinder (2), a mutual support device (3), a self-locking flatbed car (4) and a cable storage car (5), wherein the crawler-type traction support (1) is located at the front end of the whole set of equipment, the crawler-type traction support (1) straddles the outer side of the laneway track (30), the crawler-type traction support (1) is hinged to two traction oil cylinders (2), the other end of the traction oil cylinder (2) is hinged to the mutual support device (3), the base of the mutual support device (3) is located on the sleepers on the inner side of the track (30), the rear part of the mutual support device (3) is connected to the self-locking flatbed car (4), the wheels of the self-locking flatbed car (4) are pressed on the track (30), adjacent self-locking flatbed cars (4) are connected by a connecting plate, two connectors (29) are welded at the rear end of the last flatbed car, and the two connectors are connected to the rear cable storage car (5) by two telescopic connecting rods (27), and a plurality of cable storage cars (5) are connected by a vehicle connecting rod (6); The mutual support device (3) comprises a mutual support column (16) and a base (17), wherein the two mutual support columns (16) are arranged on the base (17), and the front end of the base (17) is provided with two cross connectors (15), and the two traction cylinders (2) are respectively connected and fixed to the front crawler walking traction bracket (1) and the rear cross connector (15) via pins; The self-locking flatbed vehicle (4) comprises running wheels (19), a vehicle body (20), and a self-locking brake device (18). The bottom of the self-locking flatbed vehicle (4) is provided with four running wheels (19). Two sets of self-locking brake devices (18) are embedded in the vehicle body (20). One set of self-locking brake devices (18) is located at the front end of the front wheel, and the other set of self-locking brake devices (18) is located at the rear end of the rear wheel. The upper end of the self-locking brake device (18) is hingedly connected to the vehicle body (20). The self-locking brake device (18) ) is hinged to one end of a push cylinder (21), the push cylinder (21) is fixed on the vehicle body (20), the self-locking brake device (18) comprises a brake cylinder (22), a brake block (23) and a rocker arm assembly (36), two groups of rocker arm assemblies (36) are symmetrically arranged, the upper end of the rocker arm assembly (36) is hinged to the vehicle body (20), the middle parts of the two groups of rocker arm assemblies (36) are connected to the brake cylinder (22), and the brake block (23) is installed on the inner side of the lower end of the rocker arm assembly (36).

2. The crawler-hauled rail equipment train according to claim 1, characterized in that: The crawler-type traction support (1) comprises a travel reducer (7), a travel motor (8), a frame (9), a crawler chain (10), a guide tensioning device (11), an emulsion tank (12), a top support column (13) and a pump station (14). The frame (9) is provided with four cast steel spherical column sockets, and four top support columns (13) are arranged in the four cast steel spherical column sockets. Each top support column (13) is provided with a rotatable column top cover. Both sides of the frame (9) are stacked box-shaped structures to form a crawler frame. The front wheel of the frame (9) is provided with a travel reducer (7) and a travel motor (8), and the rear wheel of the frame (9) is provided with a guide tensioning device (11); the pump station (14) and the emulsion tank (14) are installed on the frame (9).

3. The crawler-drawn rail equipment train according to claim 2, characterized in that: The cable storage vehicle (5) comprises a vehicle body (24), a cable support frame (25), a cable bracket (28), a telescopic connecting rod (27) and a connector (29); the outer cylinder of the telescopic connecting rod (27) is fixed to the vehicle body (24) via a rotating connector (26); the front end of the inner cylinder of the telescopic connecting rod (27) is fixed to the connector (29) on the front cable storage vehicle, thereby realizing the connection between adjacent cable workshops; the cable support frame (25) comprises an upper support rod and a lower sleeve; the lower sleeve is provided with a pin shaft hole; a limit pin shaft for adjusting the height of the support rod is provided in the pin shaft hole; the cable support frames (25) of two adjacent vehicles are connected via the cable bracket (28).

4. The crawler-drawn rail equipment train according to claim 3, characterized in that: The cable bracket (28) comprises a plurality of load-bearing connecting rods (33) connected in sections, the ends of adjacent load-bearing connecting rods (33) are hinged via a load-bearing round steel tube (31), the upper side of the load-bearing round steel tube (31) carries a cable (35), the cable (35) is provided with fixed pressure blocks (32) on the upper and lower sides respectively, and the fixed pressure blocks (32) on both sides are fixedly connected via screws (34).

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