Transfer auxiliary trolley for railway vehicle bogie

Abstract

The present invention discloses a rail vehicle bogie transfer auxiliary trolley, including a fixing mechanism for connecting the bogie, a support mechanism for vertically moving up and down relative to the fixing mechanism is provided at the front end of the fixing mechanism, a wheel for driving the bogie to move is provided laterally at the front end of the frame of the support mechanism, and a linear actuator is provided in the vertical direction of the frame in the middle of the wheel, and the telescopic rod at the upper end of the linear actuator presses the bottom of the bogie upward. The present invention adopts a motor drive to realize the automatic transfer of the bogie; adopts a linear actuator to carry the bogie upward and press the wheel downward to increase the forward driving force; adopts the method of installing on the side of the bogie to save space; has a simple structure and low cost, and improves the transfer efficiency, safety and practicality.

Description

Technical Field

[0001] The invention belongs to the technical field of rail transport, and in particular relates to a rail vehicle bogie transport auxiliary trolley. Background Art

[0002] With the rapid development of rail transit technology, the number of rail vehicles put into operation and use is also increasing, which also poses new challenges to the daily maintenance and overhaul of rail vehicles. Bogies are one of the key components of rail vehicles. They play an important role in bearing, shock absorption, guidance, traction, braking, etc. on the vehicle body. Their performance parameters directly determine the running speed, safety and comfort of the train. After several years of operation, the subway will enter the frame maintenance period. During the subway frame maintenance period, the running gear bogies need to be disassembled and overhauled, and paint stripping, flaw detection, dimensional inspection, painting and other operations need to be performed. The above operations need to be completed separately between multiple workstations. Driving the transportation of bogies weighing several tons is a big problem.

[0003] At present, the most widely used method in the bogie maintenance workshop is to use manual pushing or pulling of the bogie for transportation, which consumes a lot of human resources in the professional and technical field, increases the labor intensity of the operation, and has great safety hazards. The use of motor-assisted drive improves the degree of automation, but requires a large driving force. The driving force is generated by the friction between the wheels and the rails. The pressure and friction generated by the weight of the motor and the wheels themselves on the rails are very small, resulting in insufficient driving force during actual transportation. Since the steering of the bogie in the workshop requires the help of a ground steering wheel, the existing steering wheel is small, and the commonly used tractor is installed at the front and rear ends of the bogie, resulting in the ground steering wheel being unable to put down the tractor and the bogie at the same time, so that the tractor and the bogie need to be separated first, and then reconnected after the steering is completed. The steering steps are cumbersome and the work efficiency is low. Summary of the invention

[0004] Purpose of the invention: In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides a rail vehicle bogie transfer auxiliary trolley with a high degree of automation and strong driving force.

[0005] Technical solution: The present invention provides a rail vehicle bogie transfer auxiliary trolley, including a fixing mechanism for connecting the bogie, the fixing mechanism including a frame provided with a column in the vertical direction; the column is provided with a cantilever assembly which moves up and down along it and is used to cooperate with the frame to clamp the bogie; the front end of the fixing mechanism is provided with a supporting mechanism which moves up and down relative to it in the vertical direction, the front end of the frame of the supporting mechanism is laterally provided with wheels for driving the bogie to move, and a linear actuator is provided in the vertical direction when the frame is located in the middle of the wheels, and the telescopic rod at the upper end of the linear actuator presses upward against the bottom of the bogie.

[0006] In order to increase the friction between the wheel and the rail, the outer rim of the wheel is provided with texture and / or rubber tire.

[0007] Preferably, the wheels are made of Q235 steel, with a diameter of 140 mm and a quantity of two.

[0008] To enable the support mechanism to move up and down relative to the fixed mechanism in the vertical direction and at the same time adjust the height of the wheels, the wheels are retracted upward when idle and move downward until they contact the track during operation. The fixed mechanism and the support mechanism are connected by a linear guide rail assembly.

[0009] Preferably, the linear guide rail assembly adopts the model S25CFSS2G0 - 220LF.

[0010] To enable the cantilever assembly to move up and down along the column in the vertical direction, a cantilever linear guide rail assembly is installed on the side of the column adjacent to the cantilever assembly, and the cantilever assembly is fixedly connected to the slider on the cantilever linear guide rail assembly.

[0011] To facilitate the cantilever assembly to be sleeved on the column and move up and down along it, and to cooperate with the frame below to clamp and fix the bogie, the cantilever assembly is fixedly connected in an L shape by two force arms through a fixing plate, and a through hole for sleeving on the column is provided between the two force arms.

[0012] To improve the fixing effect of the fixed mechanism on the transfer bogie, fixing means such as suction cups and electromagnets are also adopted.

[0013] To facilitate driving the cantilever assembly to move up and down and improve the degree of automation, a telescopic pull rod is provided on the frame, and the top of the pull rod is fixedly connected to the bottom of the cantilever assembly.

[0014] To save costs and increase the usage scenarios, an armrest assembly is provided at the rear end of the frame of the auxiliary trolley, and directional rollers and universal wheels with wheel brakes are provided at the bottom of the frame, which is used as a manual trolley when the auxiliary transfer of the bogie is not required.

[0015] To achieve the purpose of integrated control, a controller is provided inside the frame, which is powered by a battery and can control the cantilever assembly to move up and down, cooperate with the frame of the auxiliary trolley to clamp and fix the bogie; can control the support mechanism to move up and down relative to the frame to adjust the distance between the wheels and the railway track; can control the motor to drive the wheels to rotate and control the forward and stop of the auxiliary trolley.

[0016] Preferably, the controller adopts a brushless motor programmable controller DCU12 - 24NC, and the battery adopts KNZN - 401 - 90009.

[0017] To provide sufficient upward support force for the bogie, the linear actuator is driven by a motor, pneumatically or hydraulically.

[0018] Preferably, the linear actuator adopts the model of TJC-C4-24-55-5-6000-L2.

[0019] To facilitate the adjustment of the distance between the wheels and the rails, a lifting rod for driving the support mechanism to move up and down is provided at the bottom of the frame, and the support mechanism drives the wheels to move up and down together. When the auxiliary trolley is not working, the wheels are retracted upward and do not contact the ground; when the auxiliary trolley is working, the wheels move downward until they contact the rails and lift up the frame of the auxiliary trolley, and both the directional rollers and the universal wheels are suspended.

[0020] Preferably, the support mechanism moves up and down within the height range of 270 mm - 300 mm.

[0021] To facilitate driving the auxiliary trolley forward and saving human resources, a motor for driving the wheels is provided inside the frame, and the output shaft of the motor is connected to the wheels.

[0022] Preferably, the motor adopts a hub motor with the model of K401A-82000, its power is 220 W, and the rated output torque is 20 N*m.

[0023] To save the installation space and simplify the steps of steering using the ground steering wheel, the auxiliary trolley is installed on the side.

[0024] Beneficial effects: Compared with the prior art, the present invention has the following advantages: 1. It is driven by a motor to realize the automatic transfer of the bogie; 2. It adopts a linear actuator to carry the bogie upward and press the wheels downward; 3. It improves the transfer efficiency and safety, and reduces the labor cost and maintenance cost; 4. It adopts the installation method on the side of the bogie to save space and simplify the steering steps; 5. The structure is simple and the practicability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the mechanical schematic diagram of the overall system of the present invention;

[0026] Figure 2 It is the structural schematic diagram of the present invention;

[0027] Figure 3 It is the exploded view of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0028] The technical solution of the present invention will be further described below with reference to the drawings.

[0029] As Figures 1-3As shown in the figure, a transfer auxiliary trolley for an orbital vehicle bogie includes a fixing mechanism 3 for connecting the bogie. The fixing mechanism 3 includes a vehicle frame 31 with columns arranged in the vertical direction; a cantilever assembly 32 that moves up and down along the columns is sleeved on the columns and is used to cooperate with the vehicle frame 31 to clamp the bogie 1. The cantilever assembly 32 is formed by welding two iron rods, a cross arm and a side arm, in an L shape on a triangular iron plate, and a through hole for sleeving on the column is provided between the two iron rods. A cantilever linear guide rail assembly with the model number S25CFSS260-220LF is installed on the side surface of the column close to the side arm of the cantilever assembly 32, and the side surface of the side arm of the cantilever assembly 32 close to the column is fixedly connected to the slider on the cantilever linear guide rail assembly. The bottom of the cantilever assembly 32 is fixedly connected to the telescopic rod at the top of the pull rod 34, and the pull rod 34 drives the cantilever assembly 32 to move up and down along the column, and cooperates with the vehicle frame 31 to clamp and fix the bogie 1. In order to enhance the fixing effect of the fixing mechanism 3 on the transfer frame 1, an electromagnet is also added. Two directional rollers 36 are symmetrically arranged on the left and right sides at the front end of the vehicle frame 31 at the bottom of the auxiliary trolley, and a universal wheel 37 with a wheel brake is arranged at the middle position at the rear end. An armrest assembly 38 is arranged in the vertical direction at the rear end of the vehicle frame 31. When not working, the auxiliary trolley can be manually pushed by the armrest assembly 38 to drive the directional rollers 36 and the universal wheel 37 to rotate and act as a manual trolley.

[0030] A support mechanism 4 is provided at the front end of the fixing mechanism 3, and the fixing mechanism 3 and the support mechanism 4 are connected by a linear guide rail assembly 5 with the model number S25CFSS2G0-220LF. The support mechanism 4 realizes vertical movement relative to the fixing mechanism 3 through the linear guide rail assembly 5.

[0031] A brushless motor programmable controller 39 with the model number DCU12-24NC for integrating and controlling the auxiliary trolley is arranged inside the vehicle frame 31 and is powered by a storage battery with the model number KNZN-401-90009. It can control the up and down movement of the cantilever assembly 32 and cooperate with the vehicle frame 31 of the auxiliary trolley to clamp and fix the bogie 1; it can control the up and down movement of the support mechanism 4 relative to the vehicle frame 31 to adjust the distance between the wheels 43 and the railway track 2; it can control the hub motor 42 to drive the wheels 43 to rotate and control the forward movement and stop of the auxiliary trolley.

[0032] Two wheels 43 for driving the auxiliary trolley to move forward are horizontally arranged perpendicular to the armrest assembly 38 at the front end of the frame 41 of the support mechanism 4. The wheels are made of Q235 steel, with a diameter of 140 mm, and a rubber tire is provided on the outer ring of the wheels 43 to increase the friction with the railway track, thereby increasing the driving force for the forward movement of the auxiliary trolley. A hub motor 42 with the model number K401A-82000 for driving the wheels is arranged inside the frame 41.

[0033] A lifting rod 35 is provided at the bottom of the frame 41 of the support mechanism 4 for driving the support mechanism 4 to move up and down, and the support mechanism 4 drives the wheels 43 to move up and down together. When the auxiliary trolley is not working, the wheels 43 are retracted upward and do not contact the ground; when the auxiliary trolley is working, the wheels 43 move downward until they contact the rails 2, and lift up the auxiliary trolley frame 31, and the directional rollers 36 and the universal wheels 37 are suspended. The support mechanism 4 performs lifting and lowering movements within a height range of 270mm-300mm.

[0034] A linear actuator 44 of model TJC-C4-24-55-5-6000-L2 is provided in the vertical direction of the frame 41 between the two wheels 43, and the telescopic rod at the upper end of the linear actuator 44 pushes upward against the bottom of the bogie 1. The linear actuator is driven by a motor, thereby providing sufficient upward support force for the bogie.

[0035] During operation, the auxiliary trolley is pushed in from the side of the bogie 1 for fixed installation. The cantilever assembly 32 is above the bogie 1, and the frame 31 is below the bogie 1. The electric clamping rod 34 is used to make the cantilever assembly 32 and the frame 31 move toward each other in the vertical direction to clamp the bogie 1 together. The lifting rod 35 is used to adjust the height of the support mechanism 4, and the hub motor 42 and the wheel 43 are driven to move downward synchronously until the wheel 43 is against the rail 2. The hub motor 42 drives the linear actuator 44 to work. The telescopic rod at the upper end of the linear actuator 44 pushes upward against the bottom of the bogie 1, and the lower end is fixedly connected to the frame 41 and drives it to press down. When the wheel 43 rotates, the horizontal friction force generated between it and the rail 2 is transmitted to the bogie 1 through the driving hub motor 42, the frame 41, the linear guide assembly 5, and the fixing mechanism 3 in turn, driving the bogie 1 to move forward.

Claims

1. An auxiliary transfer trolley for a bogie of an orbital vehicle, comprising a fixing mechanism (3) for connecting the bogie (1), characterized in that, The fixing mechanism (3) includes a vehicle frame (31) with columns arranged in the vertical direction; a cantilever assembly (32) that is sleeved on the columns and moves up and down along them for cooperating with the vehicle frame (31) to clamp the bogie (1). At the front end of the fixing mechanism (3), there is a support mechanism (4) that moves up and down relative to it in the vertical direction. The fixing mechanism (3) and the support mechanism (4) are connected by a linear guide rail assembly (5); the cantilever assembly (32) and the columns are connected by a cantilever linear guide rail assembly (33); the cantilever assembly (32) is fixedly connected in an L shape by two force arms through a fixing plate, and there is a through hole for sleeving on the columns between the two force arms; on the vehicle frame (31), there is a pull rod (34) for driving the cantilever assembly (32), and the top of the pull rod (34) is fixedly connected to the bottom of the cantilever assembly (32); at the front end of the frame (41) of the support mechanism (4), there is a wheel (43) for driving the bogie (1) to move horizontally, and a linear actuator (44) is arranged in the vertical direction at the middle position of the frame (41) where the wheel (43) is located. The upper telescopic rod of the linear actuator (44) abuts against the bottom of the bogie (1) upward; inside the frame (41), there is a motor (42) for driving the wheel (43), and the output shaft of the motor (42) is connected to the wheel (43).

2. The transfer auxiliary trolley for a railway vehicle bogie according to claim 1, characterized in that At the rear end of the vehicle frame (31) of the auxiliary trolley, there is an armrest assembly (38), and at the bottom of the vehicle frame (31), there are directional rollers (36) and universal wheels (37) with wheel brakes.

3. The transfer auxiliary trolley for a rail vehicle bogie according to claim 1, characterized in that Inside the vehicle frame (31), there is a controller (39) for controlling the auxiliary trolley, which is powered by a storage battery.

4. The transfer auxiliary trolley for the bogie of a rail vehicle according to claim 1, wherein The traveling direction of the wheel (43) is perpendicular to the advancing direction of the auxiliary trolley, and the auxiliary trolley is installed on the side of the bogie.

5. The transfer auxiliary trolley for a railway vehicle bogie according to claim 1, characterized in that, The outer circle of the wheel (43) is provided with patterns and / or rubber tires.

6. The transfer auxiliary trolley for a railway vehicle bogie according to claim 1, characterized in that, At the bottom of the frame (41), there is a lifting pull rod (35) for driving the support mechanism (4) to move up and down.

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