Station track switching mechanism

Abstract

The utility model provides a station track switching mechanism which comprises a fixed frame, a vertical moving device, a lifting platform and a control device. The fixed frame comprises two stand columns connected through a supporting column, and the bottoms of the stand columns are fixed to the ground. The vertical moving device is installed on the fixing frame and comprises a motor, a speed reducer, a trapezoidal screw rod, a linear guide rail, a synchronous belt wheel and a pallet fork, the motor drives the trapezoidal screw rod to rotate through the speed reducer, and the trapezoidal screw rod controls the pallet fork to move in the vertical direction along the linear guide rail; the lifting platform is fixed to the pallet fork and moves in the vertical direction along with the pallet fork. The control device receives a control signal and controls a motor in the vertical moving device to work and stop. After a robot signal is detected, one motor drives the two pallet forks to ascend and descend, ascending and descending of the whole lifting platform are achieved, and the vehicle bottom flaw detection robot can achieve switching between rails and conduct automatic inspection on the rails.

Description

Technical Field

[0001] The utility model relates to the field of track detection devices, in particular to a track switching mechanism. Background Art

[0002] The intelligent operation and maintenance industry of rail transit has gradually formed with the continuous development of rail transit in my country. At present, most of the inspections and maintenance of the vehicle bottom are still carried out manually.

[0003] With the maturity of robot technology, the existing undercarriage flaw detection robots can be used to inspect rail transit. However, since rail transit has multiple tracks, the robot can usually only inspect one track, and then manually place it in another track, which is inefficient. Utility Model Content

[0004] In order to solve the problems of the prior art, the utility model provides a track switching mechanism, which, after detecting a robot signal, drives two forks to rise and fall through a motor to realize the lifting and lowering of the entire lifting platform, so that the undercarriage flaw detection robot can switch between tracks and perform automatic inspection of rail transit.

[0005] The utility model provides a track switching mechanism, comprising a fixed frame, a vertical moving device, a lifting platform and a control device;

[0006] The fixed frame includes two columns connected by a support column, and the bottom of the columns is fixed to the ground;

[0007] The vertical moving device is installed on the fixed frame, and includes a motor, a reducer, a trapezoidal screw, a linear guide rail, a synchronous pulley and a fork. The motor drives the trapezoidal screw to rotate through the reducer, and the trapezoidal screw controls the fork to move in the vertical direction along the linear guide rail.

[0008] The lifting platform is fixed on the fork and moves in the vertical direction following the fork;

[0009] The control device receives the control signal and controls the operation and stop of the motor in the vertical moving device.

[0010] In the fixed frame, two columns are respectively provided with trapezoidal screws, linear guides, synchronous pulleys and forks. The motor and reducer control the rotation of one of the trapezoidal screws, and the trapezoidal screw controls the synchronous rotation of the trapezoidal screw on the other column through the synchronous pulley and synchronous belt.

[0011] As a further improvement, an adjustment device is provided at the bottom of the support column, the adjustment device includes an idler wheel and two back tensioning idler wheels, and the synchronous belt passes around the front side of the idler wheel and the back sides of the two back tensioning idler wheels.

[0012] As a further improvement, a support frame is mounted on the cargo fork via a transition angle iron, and the lifting platform is fixed on the support frame.

[0013] As a further improvement, a power distribution cabinet is arranged on the top of the fixed frame, and the motor and the reducer are installed in the power distribution cabinet.

[0014] According to a further improvement, the control device includes diffuse reflection photoelectric and a reflection plate.

[0015] As a further improvement, the bottom of the column is fixed to the ground via supporting legs.

[0016] When a task is required, the backend issues a command to the undercarriage flaw detection robot through the network. After receiving the command, the robot first follows the navigation route to the waiting point of the track switching mechanism, and at the same time communicates with the track switching mechanism to make the lifting platform rise and then land at the specified height. The robot can enter and exit the track or cross the track through the lifting platform. When the robot crosses the track, it can directly pass through the lifting platform and reach the specified point. When the robot needs to enter and exit the track, it needs to rotate 90 degrees on the lifting platform, and then transmit the command to the track switching mechanism through the network to make it land or rise to the specified height, and then the robot walks to the specified position.

[0017] The beneficial effects of the utility model are:

[0018] 1. After the control device detects the robot signal, it controls the lifting and lowering of the lifting platform, so that the undercarriage flaw detection robot can switch between tracks and perform automatic inspection of rail transit.

[0019] 2. Through the design of synchronous belt, one motor drives two forks to rise and fall, realizing the lifting of the entire lifting platform and saving costs.

[0020] 3. The synchronous belt can be adjusted through the adjustment device, which is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0023] Figure 2 It is a schematic diagram of the transmission part of the utility model.

[0024] Figure 3 Schematic diagram of the fork structure.

[0025] Figure 4 It is a schematic diagram of the working state of the utility model.

[0026] In the figure, 1. the first column, 2. the second column 2, 3. the first support column, 4. the second support column, 5. the support leg, 6. the fork, 7. the support frame, 8. the idler, 9. the back tensioning idler, 10. the adjustment support, 11. the lifting platform, 12. the synchronous belt, 13. the transition angle iron, 14. the trapezoidal lead screw, 15. the synchronous pulley, 16. the power distribution cabinet, 17. the linear guide rail. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The utility model structure is as follows Figure 1 As shown, it includes a fixed frame, a vertical moving device, a lifting platform and a control device.

[0029] The fixed frame includes a first column 1 and a second column 2 connected by a first support column 3 and a second support column 4 , and the bottom of the column is fixed to the ground by a support leg 5 .

[0030] The vertical moving device is installed on the fixed frame, and includes a motor, a reducer, a trapezoidal screw 14, a linear guide 17, a synchronous pulley 15 and a fork 6. Figure 2 As shown, the two columns are respectively provided with a trapezoidal lead screw, a linear guide rail, a synchronous pulley and a fork. The motor and the reducer control the rotation of one of the trapezoidal lead screws, and the trapezoidal lead screw controls the synchronous rotation of the trapezoidal lead screw on the other column through the synchronous pulley 15 and the synchronous belt 12.

[0031] The lifting platform is fixed on the fork and moves vertically with the fork. Figure 3 As shown, the support frame 7 is installed through the transition angle iron 14, and the lifting platform 11 is fixed on the support frame.

[0032] The control device receives the control signal, including diffuse reflection photoelectric and reflection plate, and controls the operation and stop of the motor in the vertical moving device.

[0033] An adjusting device 10 is provided at the bottom of the support column, and the adjusting device includes an idler wheel 8 and two back tensioning idler wheels 9. The synchronous belt passes around the front side of the idler wheel and the back sides of the two back tensioning idler wheels.

[0034] A power distribution cabinet 16 is arranged on the top of the fixed frame, and the motor and the reducer are installed in the power distribution cabinet.

[0035] The working state of the utility model is as follows Figure 4 As shown in the figure, when a task is required, the background issues a command to the undercarriage flaw detection robot through the network. After receiving the command, the robot first arrives at the waiting point of the track switching mechanism according to the navigation route, and at the same time communicates with the track switching mechanism to make the lifting platform rise and then land to the specified height. The robot can enter and exit the track or cross the track through the lifting platform. When the robot crosses the track, it can directly pass through the lifting platform and reach the specified point. When the robot needs to enter and exit the track, it needs to rotate 90 degrees on the lifting platform, and then transmit the command to the track switching mechanism through the network to make it land or rise to the specified height, and then the robot walks to the specified position.

[0036] Each embodiment in this specification is described in a progressive manner, and the same and similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, the above is only a preferred implementation of the utility model. Since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field is within the technical scope disclosed by the utility model. For ordinary technicians in the technical field, changes or replacements that can be easily thought of should be included in the protection scope of the utility model without departing from the principle of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A track switching mechanism, characterized in that: It includes a fixed frame, a vertical moving device, a lifting platform and a control device; The fixed frame includes two columns connected by a support column, and the bottom of the columns is fixed to the ground; The vertical moving device is installed on the fixed frame, and includes a motor, a reducer, a trapezoidal screw, a linear guide rail, a synchronous pulley and a fork. The motor drives the trapezoidal screw to rotate through the reducer, and the trapezoidal screw controls the fork to move in the vertical direction along the linear guide rail. The lifting platform is fixed on the fork and moves in the vertical direction following the fork; The control device receives the control signal and controls the operation and stop of the motor in the vertical moving device.

2. The track switching mechanism according to claim 1, characterized in that: In the fixed frame, two columns are respectively provided with trapezoidal screws, linear guides, synchronous pulleys and forks. The motor and reducer control the rotation of one of the trapezoidal screws, and the trapezoidal screw controls the synchronous rotation of the trapezoidal screw on the other column through the synchronous pulley and synchronous belt.

3. The track switching mechanism according to claim 2, characterized in that: An adjusting device is arranged at the bottom of the supporting column, and the adjusting device comprises an idler wheel and two back tensioning idler wheels, and the synchronous belt passes around the front side of the idler wheel and the back sides of the two back tensioning idler wheels.

4. The track switching mechanism according to claim 1, characterized in that: A support frame is installed on the cargo fork through a transition angle iron, and the lifting platform is fixed on the support frame.

5. The track switching mechanism according to claim 1, characterized in that: A power distribution cabinet is arranged on the top of the fixed frame, and the motor and the reducer are installed in the power distribution cabinet.

6. The track switching mechanism according to claim 1, characterized in that: The control device includes diffuse reflection photoelectric and reflection plate.

7. The track switching mechanism according to claim 1, characterized in that: The bottom of the column is fixed to the ground through supporting legs.

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