A rail transport vehicle

Abstract

The present invention provides a rail transport vehicle, comprising a vehicle body, a control system, a power system, a wheel pair device and a friction wheel device arranged on the vehicle body; the power system is used to provide a power source for the rail transport vehicle; the wheel pair device is arranged at the bottom of the vehicle body, and is used to carry and guide the rail transport vehicle; the friction wheel device comprises a driving brake mechanism, a driving friction wheel, a friction wheel clamping mechanism, a frame and a rail clamping brake; the driving brake mechanism is connected to the driving friction wheel, and is used to drive and brake the driving friction wheel; the driving friction wheel is connected to the two side surfaces of the track by rolling friction, so as to be displaced on the track structure; the friction wheel clamping mechanism is connected to the driving brake mechanism, and is used to control the driving friction wheel to clamp or release the track; the rail clamping brake is contact-connected to the two side surfaces of the third rail, and achieves safe braking by clamping the track.

Description

Technical Field

[0001] The present invention relates to the technical field of transportation equipment, and in particular to a rail transportation vehicle that can adapt to large slopes. Background Art

[0002] At present, the rail transit vehicles for large climbing gradients generally use rubber-wheeled transport vehicles, rack rail transport vehicles or monorail crane transport vehicles. Among them:

[0003] In order to solve the problem of vehicles having difficulty climbing on steep slopes and slipping under braking, rubber-wheeled transport vehicles adopt the "big horse pulling a small cart" method, that is, a rubber-wheeled vehicle with a large deadweight is used to transport lighter materials, so that there is sufficient adhesion between the vehicle tires and the road surface on the steep slope line to ensure that the vehicle can pass the slope smoothly; however, when a rail transit vehicle with such a structure is running under poor track surface conditions, the adhesion coefficient between the vehicle tires and the driving road surface will be sharply reduced. At this time, when an empty vehicle is climbing a slope, the wheels may slip and the brakes may slip, resulting in the disadvantages of small single-time transport volume, low transport efficiency, low transport performance, and low safety of rail transit vehicles with such a structure;

[0004] Rack rail transport vehicles are very safe because they use rack and pinion to drive and brake the vehicle. However, because their tracks require a rack rail to be laid between the two traditional steel rails, in order to ensure stable meshing between the rack and pinion, there are very high requirements for the manufacturing, processing and laying of the rack, which directly leads to high costs for laying the line.

[0005] The monorail crane transport vehicle travels on a track suspended above the line; because the normal operation of the monorail crane transport vehicle requires the laying of suspended rails, it has the disadvantages of great difficulty and high cost in track laying. In addition, due to the mid-hoisting structure adopted by the rail transit vehicle of this structure, it also has the defects of difficulty in material loading and unloading and low vehicle running speed. Summary of the invention

[0006] The present invention provides a rail transport vehicle, comprising a vehicle body, a control system, a power system, a wheel pair device and a friction wheel device arranged on the vehicle body; the power system is used to provide a power source for the rail transport vehicle; the wheel pair device is arranged at the bottom of the vehicle body, and is used to carry and guide the rail transport vehicle; the friction wheel device comprises a driving brake mechanism, a driving friction wheel, a friction wheel clamping mechanism, a frame and a rail clamping brake; the driving brake mechanism is connected to the driving friction wheel, and is used to drive and brake the driving friction wheel; the driving friction wheel is connected to the two side surfaces of the track by rolling friction, so as to be displaced on the track structure; the friction wheel clamping mechanism is connected to the driving brake mechanism, and is used to control the driving friction wheel to clamp or release the track; the rail clamping brake is contact-connected to the two side surfaces of the third rail, and achieves safe braking by clamping the track.

[0007] Optionally, the rail transport vehicle realizes transportation by displacing on a rail structure, wherein the rail structure includes a rail, two steel rails arranged on the rail and spaced apart from each other, and a third rail arranged between the two steel rails.

[0008] Optionally, the driving friction wheel is provided with two pieces symmetrically arranged along the third rail; the driving braking mechanism is provided with two groups arranged in a one-to-one correspondence with the driving friction wheels, and the two groups of driving braking mechanisms respectively control the two driving friction wheels for driving and braking.

[0009] Optionally, the driving brake mechanism includes a driving unit, a service brake and a speed sensor; the fixed end of the driving unit is connected to the frame; the service brake is integrated on the output end of the driving unit; the speed sensor is used to detect the speed of the driving unit and feed it back to the control system.

[0010] Optionally, the friction wheel clamping mechanism includes a clamping cylinder, a swivel arm, a first swivel pin and a second swivel pin; the clamping cylinder is configured as a dual-drive cylinder structure, a fixed end of which is mounted on a frame, and two drive ends of which are respectively hinged with swivel arms; the other ends of the swivel arms are hinged to the frame.

[0011] Optionally, the rail clamping brake is configured as a normally closed mechanical rail clamping brake structure.

[0012] Optionally, the friction wheel device further includes a traction mechanism, one end of which is connected to the frame, and the other end of which is connected to the vehicle body, for transmitting the traction force and braking force on the friction wheel device to the vehicle body.

[0013] Optionally, the friction wheel device also includes a supporting wheel mechanism, which includes two parts symmetrically arranged on both sides of the third rail and rolling along the surface of the third rail respectively, for supporting the friction wheel device and preventing the friction wheel device from detaching from the third rail.

[0014] Optionally, the vehicle body includes a frame, a control room and a coupling assembly; the control room is arranged at one end of the frame along the displacement direction of the rail transport vehicle; the coupling assembly is provided with a group of groups respectively arranged at one end of the control room away from the frame and one group arranged at one end of the frame away from the control room, which are used to connect the rail transport vehicle with external equipment.

[0015] Optionally, the control system includes a control module and a data processing module, the data processing module is used to analyze and process various data, and the control module is used to send corresponding control instructions to various components.

[0016] Optionally, the power system includes a diesel engine and a hydraulic transmission system, the diesel engine is used to provide power for the rail transport vehicle, and the hydraulic transmission system is used to provide hydraulic power for the rail transport vehicle.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention provides a rail transport vehicle, which uses horizontally arranged friction wheels as vehicle driving and braking wheels and a wheel pair device as vehicle load-bearing wheels. By setting the load applied to the friction wheels as an adjustable structure, the friction wheels can obtain a pre-pressure much greater than the vehicle's own weight, so that the actual output traction force and braking force of the rail transport vehicle are freed from the weight limit of the rail transport vehicle. Correspondingly, the vehicle can also be designed to be lightweight, and the vehicle load capacity can be increased, the vehicle transportation efficiency can be improved, and the vehicle energy consumption can be reduced. At the same time, by freeing the actual output traction force and braking force of the rail transport vehicle from the weight limit of the rail transport vehicle, the problems of difficulty in transporting heavy-load vehicles, easy slipping of wheels, and vehicle slipping under slippery track conditions are solved, and the safe transportation of heavy-load materials on steep slope lines can be achieved.

[0019] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 is a schematic front view of a rail transportation vehicle in an embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A right side schematic diagram of

[0023] Figure 3 yes Figure 1 Axonometric diagram of the middle friction wheel device;

[0024] Figure 4 yes Figure 3 Schematic cross-section of the center clamping cylinder.

[0025] in:

[0026] 1. Vehicle body, 1.1. Vehicle frame, 1.2. Control room, 1.3. Linkage assembly, 2. Control system, 3. Power system, 4. Wheel set device, 5. Friction wheel device, 5.1. Driving brake mechanism, 5.1.1. Driving unit, 5.1.2. Service brake, 5.2. Driving friction wheel, 5.3. Friction wheel clamping mechanism, 5.3.1. Clamping cylinder, 5.3.1A. Self-reset spring, 5.3.1B. Cylinder piston, 5.3.2. Swivel arm, 5.3.3. First rotating shaft latch, 5.3.4. Second rotating shaft latch, 5.4. Frame, 5.5. Track clamping brake, 5.6. Traction mechanism, 5.7. Support wheel mechanism;

[0027] 10. Track structure, 10.1. Track, 10.2. Third rail, 10.3. Steel rail. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present invention more clear and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. It should be noted that the drawings of the present invention are all simplified and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the implementation of the present invention; the "number" mentioned in the present invention is not limited to the specific number in the examples in the accompanying drawings; the directions or positional relationships indicated by "front", "middle", "back", "left", "right", "up", "down", "top", "bottom", "middle", etc. mentioned in the present invention are based on the directions or positional relationships shown in the drawings of the present invention, and do not indicate or imply that the devices or components referred to must have a specific direction, nor can they be understood as limitations on the present invention.

[0029] This embodiment:

[0030] See also Figures 1 to 4 As shown, a rail transport vehicle comprises a vehicle body 1, a control system 2, a power system 3, a wheel set device 4 and a friction wheel device 5 arranged on the vehicle body 1; the vehicle body 1 is the main support of the rail transport vehicle, the control system 2 is the control center of the rail transport vehicle, the power system 3 is used to provide a power source for the rail transport vehicle, the wheel set device 4 is the bearing and guiding structure of the rail transport vehicle, and the friction wheel device 5 is the driving and braking structure of the rail transport vehicle. Preferably, the track structure 10 comprises two rails 10.1 spaced apart from each other, a third rail 10.2 arranged between the two rails 10.1 and steel rails 10.3 respectively arranged on both sides of the rails 10.1.

[0031] The vehicle body 1 includes a frame 1.1, a control room 1.2 and a coupling assembly 1.3. The control room 1.2 is arranged on one end of the frame 1.1 along the displacement direction of the rail transport vehicle. The coupling assembly 1.3 includes a group of components respectively arranged on one end of the control room 1.2 away from the frame 1.1 and a group of components respectively arranged on one end of the frame 1.1 away from the control room 1.2. The coupling assembly 1.3 is used to connect the rail transport vehicle with other external equipment to achieve traction of other external equipment. Preferably, the coupling assembly 1.3 and other external equipment are detachably connected.

[0032] Optionally, the coupling assembly 1.3 includes a first connecting member, a second connecting member and a connecting shaft, one end of the first connecting member is connected to the control room 1.2 or the frame 1.1, one end of the second connecting member is connected to other external equipment, the other end of the first connecting member is rotatably connected to the other end of the second connecting member through the connecting shaft, and the detachable connection between the rail transport vehicle and other external equipment is achieved by disassembling the connecting shaft.

[0033] The control system 2 is arranged on the vehicle frame 1.1; the control system 2 comprises a control module and a data processing module, the data processing module is used for analyzing and processing various data, and the control module is used for sending corresponding control instructions to various components.

[0034] The power system 3 is arranged on the frame 1.1 and is used to provide a power source for the rail transport vehicle; the power system 3 includes a diesel engine and a hydraulic transmission system, the diesel engine is used to provide power for the rail transport vehicle, and the hydraulic transmission system is used to provide hydraulic power for the rail transport vehicle.

[0035] The wheelset device 4 is mounted on the vehicle frame 1.1 and arranged below the vehicle frame 1.1, and is used to carry the entire vehicle and guide the rail transport vehicle to move on the track structure 10. Preferably, the specific structure of the wheelset device 4 is the prior art.

[0036] Optionally, the wheel pair device 4 is provided with two groups arranged in parallel along the displacement direction of the rail transport vehicle.

[0037] The friction wheel device 5 is installed on the frame 1.1 and is arranged below the frame 1.1, and the friction wheel device 5 includes a driving brake mechanism 5.1, a driving friction wheel 5.2, a friction wheel clamping mechanism 5.3, a frame 5.4, a rail clamping brake 5.5, a traction mechanism 5.6 and a supporting wheel mechanism 5.7; the driving friction wheel 5.2 is provided with two pieces respectively arranged on the two sides of the web of the third rail 10.2, and the driving brake mechanism 5.1 is provided with two groups arranged in a one-to-one correspondence with the driving friction wheel 5.2, and the two groups of driving brake mechanisms 5.1 respectively control the two driving friction wheels 10.2. The wheel 5.2 is driven and braked, the friction wheel clamping mechanism 5.3 is used to control the driving friction wheel 5.2 to clamp or release the web of the third rail 10.2, the rail clamping brake 5.5 is used to clamp the web of the third rail 10.2, the traction mechanism 5.6 is used to transmit the traction force and braking force on the friction wheel device 5 to the frame 1.1, so that the rail transport vehicle can run as a whole, and the supporting wheel mechanism 5.7 is used to support the entire friction wheel device 5 and prevent the entire friction wheel device 5 from detaching from the third rail 10.2, thereby avoiding the rail transport vehicle from falling off the rails.

[0038] Optionally, the single-piece drive brake mechanism 5.1 includes a drive unit 5.1.1, a service brake 5.1.2 and a speed sensor. The drive unit 5.1.1 is preferably configured as a hydraulic motor structure, and the fixed end of the drive unit 5.1.1 is connected to the frame 5.4 via a connecting flange. The service brake 5.1.2 is integrated on the output end of the drive unit 5.1.1. The speed sensor is used to detect the speed of the drive unit 5.1.1 and feed it back to the data processing module in the control system 2, and the data processing module analyzes and processes it. When the result of the analysis and processing by the control system 2 is that the speed exceeds the rated speed (if the speed of the drive unit 5.1.1 exceeds the rated speed, it means that the running speed of the rail transport vehicle is too fast), the control module in the control system 2 sends a braking command to the service brake 5.1.2, and the service brake 5.1.2 clamps the output shaft of the drive unit 5.1.1 according to the command, thereby applying braking on the driving friction wheel 5.2 to slow down the rail transport vehicle and achieve automatic braking for overspeed; at the same time, the control module in the control system 2 shuts down the diesel engine in the power system 3 to transmit power to the drive unit 5.1.1 to ensure the transportation safety of the rail transport vehicle; when an emergency occurs in the rail transport vehicle, the operator can control the emergency button in the control room 1.2 to release the pressure in the rail clamping brake 5.5, so that the rail clamping brake 5.5 clamps the two sides of the web of the third rail 10.2, thereby stopping the rail transport vehicle quickly to ensure its transportation safety.

[0039] Optionally, a single-piece driving friction wheel 5.2 is fixedly connected to the service brake 5.1.2 by bolts, and the two driving friction wheels 5.2 are simultaneously loaded by the friction wheel clamping mechanism 5.3. The two sides of the web of the third rail 10.2 are set by rolling friction; the load of the driving friction wheel 5.2 is applied by the friction wheel clamping mechanism 5.3 to ensure that in the case of a poor running track surface, the wheel-rail adhesion between the driving friction wheel 5.2 and the web of the third rail 10.2 is still greater than the traction and braking force required by the rail transport vehicle, so as to ensure the driving stability of the rail transport vehicle, prevent tire slippage, brake slippage, etc., so that the rail transport vehicle can adapt to running on a line with a large slope. Preferably here: the driving friction wheel 5.2 is preferably set as a solid wheel structure.

[0040] Optionally, the friction wheel clamping mechanism 5.3 includes a clamping cylinder 5.3.1, a swivel arm 5.3.2, a first rotating shaft pin 5.3.3 and a second rotating shaft pin 5.3.4; the clamping cylinder 5.3.1 is configured as a dual-drive cylinder structure, a fixed end of which is mounted on the frame 5.4, and two driving ends of which are respectively connected to one end of the two swivel arms 5.3.2 through the first rotating shaft pin 5.3.3; the other ends of the two swivel arms 5.3.2 are respectively hinged to the swivel arm ears provided on the frame 5.4 through the second rotating shaft pin 5.3.4. In the initial state, the hydraulic oil in the clamping cylinder 5.3.1 is in a pressure-relieved state, and the two cylinder pistons 5.3.1B (the two cylinder pistons are the two driving ends of the clamping cylinder) in the clamping cylinder 5.3.1 drive the two cylinder pistons 5.3.1B to move away from each other through the spring force of the self-resetting spring 5.3.1A, thereby driving the two rotating arms 5.3.2 connected to the two driving ends of the clamping cylinder 5.3.1 to rotate along the two rotating arm ears on the frame 5.4, so that the friction wheel clamping mechanism 5.3 is separated from the third rail 10.2; in the working state, the hydraulic transmission system moves to the clamping A certain pressure of hydraulic oil is input into the clamping cylinder 5.3.1, and the spring force of the self-reset spring 5.3.1A in the clamping cylinder 5.3.1 drives the two cylinder pistons 5.3.1B to move in a direction close to each other, thereby driving the two rotating arms 5.3.2 connected to the clamping cylinder 5.3.1 to rotate along the two rotating arm ears arranged on the frame 5.4, so that the friction wheel clamping mechanism 5.3 clamps the third rail 10.2; at the same time, the hydraulic oil pressure input into the clamping cylinder 5.3.1 is adjusted by the hydraulic transmission system, so that the load applied to the driving friction wheel 5.2 can be adjusted as needed.

[0041] Optionally, the rail clamping brake 5.5 is preferably configured as a normally closed mechanical rail clamping brake structure, the principle of which is to apply braking force by clamping the two sides of the web of the third rail 10.2 with a spring force friction plate. Preferably, the rail transport vehicle is equipped with multiple sets of rail clamping brakes 5.5, and the multiple sets of rail clamping brakes 5.5 are uniformly controlled by the brake oil circuit to ensure that the rail transport vehicle can brake safely.

[0042] Optionally, a traction mechanism 5.6 is provided at both ends of each friction wheel device 5, one end of the traction mechanism 5.6 is connected to the frame 5.4, and the other end of the traction mechanism 5.6 is connected to the lower part of the frame 1.1, which is used to transmit the traction force and braking force on the friction wheel device 5 to the frame 1.1, so that the rail transport vehicle can run as a whole.

[0043] Optionally, two pairs of supporting wheel mechanisms 5.7 are further provided on each friction wheel device 5, and the two pairs of supporting wheel mechanisms 5.7 are symmetrically arranged on both side surfaces of the web of the third rail 10.2 and respectively roll along the upper surface of the lower plate of the third rail 10.2, so as to support the entire friction wheel device 5 and prevent the entire friction wheel device 5 from detaching from the third rail 10.2, thereby preventing the rail transport vehicle from derailing.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rail transportation vehicle, characterized in that: It comprises a vehicle body (1), a control system (2) arranged on the vehicle body (1), a power system (3), a wheel set device (4) and a friction wheel device (5); The power system (3) is used to provide a power source for the rail transport vehicle; The wheel set device (4) is arranged at the bottom of the vehicle body (1) and is used to carry and guide the rail transport vehicle; The friction wheel device (5) comprises a driving brake mechanism (5.1), a driving friction wheel (5.2), a friction wheel clamping mechanism (5.3), a frame (5.4) and a rail clamping brake (5.5); the driving brake mechanism (5.1) is connected to the driving friction wheel (5.2) and is used to drive and brake the driving friction wheel (5.2); the driving brake mechanism (5.1) comprises a driving unit (5.1.1), a service brake (5.1.2) and a rotation speed sensor; the fixed end of the driving unit (5.1.1) is connected to the frame (5.4) via a connecting flange, and the service brake (5.1.2) is integrally mounted on the driving unit ( 5.1.1) output, the speed sensor is used to monitor the drive unit ( The speed of the vehicle is detected and fed back to the data processing module in the control system (2), and the data processing module analyzes and processes the speed. When the control system (2) analyzes and processes the speed and the result is that the speed exceeds the rated speed, the control module in the control system (2) sends a braking command to the service brake (5.1.2), and the service brake (5.1.2) clamps the output shaft of the drive unit (5.1.1) according to the command, thereby applying braking to the drive friction wheel (5.2), decelerating the rail transport vehicle and realizing automatic overspeed braking. At the same time, the control module in the control system (2) shuts down the diesel engine in the power system (3) to drive the drive unit ( 5.1.1) transmits power instructions to ensure the transportation safety of the rail transportation vehicle; when the rail transportation vehicle encounters an emergency, the operator can control the emergency button in the control room (1.2) to release the pressure in the rail clamping brake (5.5), so that the rail clamping brake (5.5) clamps the two side surfaces of the web of the third rail (10.2) in the track structure (10), thereby stopping the rail transportation vehicle quickly to ensure its transportation safety; The driving friction wheel (5.2) is connected to two side surfaces of the track structure (10) by rolling friction so as to move on the track structure (10); the friction wheel clamping mechanism (5.3) is connected to the driving brake mechanism (5.1) and is used to control the driving friction wheel (5.2) to clamp or release the third rail (10.2); the rail clamping brake (5.5) is contact-connected to two side surfaces of the third rail (10.2) and achieves safe braking by clamping the rail; The rail transport vehicle achieves transport by moving on a rail structure (10), wherein the rail structure (10) comprises a rail (10.1), two steel rails (10.3) arranged on the rail (10.1) and spaced apart from each other, and a third rail (10.2) arranged between the two steel rails (10.3).

2. The rail transportation vehicle according to claim 1, characterized in that: The driving friction wheel (5.2) is provided with two pieces symmetrically arranged along the third rail (10.2); The driving brake mechanism (5.1) is provided with two groups arranged in a one-to-one correspondence with the driving friction wheels (5.2), and the two groups of driving brake mechanisms (5.1) respectively control the two driving friction wheels (5.2) to drive and brake.

3. The rail transportation vehicle according to claim 1, characterized in that: The friction wheel clamping mechanism (5.3) comprises a clamping cylinder (5.3.1), a rotating arm (5.3.2), a first rotating shaft latch (5.3.3) and a second rotating shaft latch (5.3.4); The clamping cylinder (5.3.1) is configured as a dual-drive cylinder structure, a fixed end of which is mounted on the frame (5.4), and two drive ends of which are respectively hinged with rotating arms (5.3.2); The other ends of the rotating arms (5.3.2) are hinged to the frame (5.4).

4. The rail transportation vehicle according to claim 1, characterized in that: The rail clamping brake (5.5) is configured as a normally closed mechanical rail clamping brake structure.

5. The rail transportation vehicle according to any one of claims 2 to 3, characterized in that: The friction wheel device (5) further comprises a traction mechanism (5.6), one end of the traction mechanism (5.6) being connected to the frame (5.4), and the other end of the traction mechanism (5.6) being connected to the vehicle body (1), for transmitting the traction force and braking force on the friction wheel device (5) to the vehicle body (1).

6. The rail transportation vehicle according to claim 5, characterized in that: The friction wheel device (5) further comprises a supporting wheel mechanism (5.7), wherein the supporting wheel mechanism (5.7) comprises two parts which are symmetrically arranged on two side surfaces of the third rail (10.2) and respectively roll along the surface of the third rail (10.2), and are used to support the friction wheel device (5) and prevent the friction wheel device (5) from detaching from the third rail (10.2).

7. The rail transportation vehicle according to claim 6, characterized in that: The vehicle body (1) comprises a vehicle frame (1.1), a control room (1.2) and a linkage assembly (1.3); The control room (1.2) is arranged on one end of the vehicle frame (1.1) along the displacement direction of the rail transport vehicle; The coupling assembly (1.3) is provided with a group arranged on one end of the control room (1.2) away from the vehicle frame (1.1) and a group arranged on one end of the vehicle frame (1.1) away from the control room (1.2), and is used for connecting the rail transport vehicle with external equipment.

8. The rail transportation vehicle according to claim 7, characterized in that: The control system (2) comprises a control module and a data processing module, wherein the data processing module is used to analyze and process various data, and the control module is used to send corresponding control instructions to various components; The power system (3) comprises a diesel engine and a hydraulic transmission system, wherein the diesel engine is used to provide power to the rail transport vehicle, and the hydraulic transmission system is used to provide hydraulic power to the rail transport vehicle.

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