Subway inspection trolley lifting and transferring device

Abstract

The utility model discloses a subway inspection trolley lifting and transferring device which comprises a maintenance stair, a tray, a lifting assembly and a driving mechanism, the tray is used for bearing a subway inspection trolley, and the tray comprises a top plate, a bottom plate and a driving part mounting bin defined by the top plate and the bottom plate; the lifting assembly comprises two sets of linear guide rails and sliding blocks which are symmetrically installed on the two sides of the maintenance stairway, the driving mechanism comprises a motor driver, a servo motor, a worm and gear reduction gearbox and a gear and rack module, and the sliding blocks on the linear guide rails are provided with tray soft connecting pieces and the like. By arranging the tray with a unique structure, the lifting mechanism and various detection function designs, the subway inspection trolley can be suitable for subway rails with different trench depths, the subway inspection trolley can be automatically, quickly and safely lifted and transferred, and meanwhile, the passing and access of maintainers are not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit inspection equipment, in particular to a lifting and transferring device for a subway inspection trolley. Background Art

[0002] With the development of large-scale line network operations, the daily inspection of subway vehicles is completed by undercarriage inspection robots, which automatically detect whether there are loose screws, cracks, etc. on the undercarriage of the subway, improving the inspection efficiency and safety performance. The existing undercarriage inspection robots are carried out in a stopped state after the subway enters the station. The undercarriage inspection robots first need to enter the subway track, then walk along the track under the subway car to detect the status of the undercarriage. In order to enable the undercarriage inspection robot to smoothly enter the subway track and meet the requirements of different trench structures and depths, it is necessary to design a device that can realize the lifting and transportation of the inspection vehicle. Utility Model Content

[0003] Technical purpose: In view of the above technical problems, the utility model proposes a subway inspection trolley lifting and transferring device, which can realize the convenient and safe lifting and transferring of the subway inspection trolley.

[0004] Technical solution: To achieve the above technical objectives, the utility model adopts the following technical solution:

[0005] A subway inspection trolley lifting and transfer device, comprising an inspection staircase, a tray, a lifting assembly and a driving mechanism, wherein the inspection staircase is provided with multiple steps, the tray is used to carry the subway inspection trolley, and the tray comprises a top plate, a bottom plate, and a driving component installation compartment surrounded by the top plate and the bottom plate; the lifting assembly comprises two sets of linear guide rails and sliders symmetrically installed on both sides of the inspection staircase, and the linear guide rails are arranged to be inclined downward along the inspection staircase; the driving mechanism comprises a motor driver, a servo motor, a worm gear reduction box installed in the driving component installation compartment, and a gear rack module installed under the linear guide rail;

[0006] The worm gear reduction box is provided with a first output shaft and a second output shaft perpendicular to the long side direction of the linear guide rail, the first output shaft and the second output shaft extend out of the drive member installation compartment and are respectively connected to a gear rack module, the power output by the servo motor is transmitted to the corresponding gear rack module through the output shaft of the worm gear reduction box, and the gear rack module is used to drive the slider to translate on the linear guide rail;

[0007] The sliders on each linear guide rail are provided with a tray soft link, which connects the inner side of the slider and the outer side of the bottom plate of the tray, and is used to horizontally support the tray.

[0008] Preferably, the tray is provided with an anti-drop mechanism, which includes a flap hinged to the outer side of the top plate and an electric push rod for driving the flap to fold.

[0009] Preferably, the worm gear reduction box is further provided with a third output shaft meshingly connected with the first output shaft and the second output shaft inside the reduction box, and a manual crank is provided at the end of the third output shaft;

[0010] The ends of the first output shaft and the second output shaft are both provided with a spline universal joint and a transmission shaft, and the ends of the transmission shaft are connected to the corresponding gear rack module.

[0011] Preferably, the inner edge and outer edge of the pallet are respectively provided with a plurality of position sensors for detecting the position of the pallet on the maintenance stairs and the position of the subway inspection trolley on the pallet; a proximity switch and a status indicator light are provided at the top of each linear guide rail, and the proximity switch is used to detect whether the slider thereon moves to the top of the linear guide rail; and a foreign object detection grating is provided on each step of the maintenance stairs.

[0012] Preferably, the device also includes an electrical box arranged on the inner wall of the subway track and an emergency stop button located on the outside of the bottom end of any linear guide rail, the electrical box is used to provide working power to the driving mechanism, and the emergency stop button is used to cut off the working power of the driving mechanism.

[0013] Preferably, the device is further provided with a dust cover covering the linear guide rail and the slider.

[0014] Beneficial effects: Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model is designed with a unique tray structure, a lifting mechanism and multiple detection functions, which can be applied to subway tracks with different trench depths, and can realize automatic, fast and safe lifting and transportation of subway inspection vehicles without affecting the passage of maintenance personnel and their entry and exit channels. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a subway inspection trolley lifting and transferring device proposed by the utility model;

[0017] Figure 2 for Figure 1 A perspective view of the drive component installation compartment inside the middle tray;

[0018] Figure 3 for Figure 1 Schematic diagram of the middle tray running to the middle of the linear track;

[0019] Among them, 1-maintenance stairs, 2-top plate, 3-bottom plate, 4-linear guide, 5-slider, 6-motor driver, 7-servo motor, 8-worm gear reducer, 9-gear rack module, 10-tray soft link, 11-flip plate, 12-manual crank, 13-spline universal joint, 14-drive shaft, 15-position sensor, 16-proximity switch, 17-status indicator light, 18-foreign object detection grating, 19-electrical box, 20-emergency stop button, 21-dust cover, 81-first output shaft, 82-second output shaft, 83-third output shaft. DETAILED DESCRIPTION

[0020] The embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings.

[0021] like Figures 1 to 3 As shown, the utility model proposes a subway inspection trolley lifting and transporting device, including: an inspection staircase 1, a tray, a lifting assembly and a driving mechanism, wherein the inspection staircase 1 is provided with multiple steps, and the stairs provided by the subway track can be directly used, or a movable staircase can be set separately. The tray is used to carry the subway inspection trolley, and the tray includes a top plate 2, a bottom plate 3, and a drive component installation bin surrounded by the top plate 2 and the bottom plate 3. The left and right sides of the tray are provided with fixed anti-drop baffles, and the front and rear edges are provided with anti-drop mechanisms. The anti-drop mechanisms include a flap 11 hinged to the front outer edge of the top plate 2 and an electric push rod for driving the flap 11 to fold, and the electric push rod is not shown in the figure. In this embodiment, a pair of position sensors 15 are respectively provided on the inner edge and the outer edge of the tray, which are used to detect the position of the tray on the inspection staircase 1 and the position of the subway inspection trolley on the tray; the front end of the top plate is set as a slope structure for facilitating the entry of the subway inspection trolley, and after detecting that the subway inspection trolley enters the baffle area, the electric push rod is controlled to automatically push up the flap.

[0022] The lifting assembly includes two sets of linear guide rails 4 and sliders 5 symmetrically installed on both sides of the maintenance staircase 1. The linear guide rails 4 are arranged to be inclined downward along the maintenance staircase 1, forming a small automatic lifting elevator structure.

[0023] like Figure 2As shown, the driving mechanism includes a motor driver 6, a servo motor 7, a worm gear reducer 8, and a gear rack module 9 installed under the linear guide 4. By setting the worm gear reducer, the tray can be prevented from sliding down directly in the event of a sudden power failure. The worm gear reducer 8 is provided with a first output shaft 81 and a second output shaft 82 perpendicular to the long side direction of the linear guide 4. The first output shaft 81 and the second output shaft 82 extend out of the driving component installation chamber and are respectively connected to a gear rack module 9. The power output by the servo motor 7 is transmitted to the corresponding gear rack module 9 through the output shaft of the worm gear reducer 8. The gear rack module 9 is used to drive the slider 5 to translate on the linear guide 4. The worm gear reducer 8 is also provided with a third output shaft 83 meshingly connected with the first output shaft 81 and the second output shaft 82 inside the reducer. A manual crank 12 is provided at the end of the third output shaft 83. The manual crank is used to manually adjust the position of the tray on the linear guide under abnormal circumstances.

[0024] like Figure 2 As shown, the slider 5 on each linear guide rail 4 is provided with a pallet soft link 10, which connects the inner side of the slider 5 and the outer side of the bottom plate 3 of the pallet. The pallet soft link 10 is fixedly connected to the slider 5, and the portion where it is connected to the bottom plate 3 of the pallet is configured as a horizontal long bar structure, which can keep the pallet in a horizontal state during the operation of the pallet.

[0025] In this embodiment, the ends of the first output shaft 81 and the second output shaft 82 are both provided with a spline universal joint 13 and a transmission shaft 14, and the ends of the transmission shaft 14 are connected to the corresponding rack and pinion module 9. On the one hand, it is because it is suitable for the different width requirements of subway tracks and maintenance elevators, the length of the output shaft is extended, and the length of the transmission shaft is designed in advance, which is convenient for on-site installation and saves time for on-site debugging. On the other hand, through the spline universal joint connection, the angle deviation of the transmission on both sides can be better avoided, and the synchronous operation of the rack and pinion modules on both sides can be ensured.

[0026] In this embodiment, each linear guide 4 is installed on the inspection staircase through a bracket at the bottom, and the bracket is preferably set to an adjustable structure. A proximity switch 16 and a status indicator light 17 are provided at the top of each linear guide 4. The proximity switch 16 is used to detect whether the slider 5 thereon moves to the top of the linear guide 4; a foreign object detection grating 18 is provided on each step of the inspection staircase 1 to detect whether there are foreign objects or people in the aisle. A dust cover 21 is provided on the linear guide 4. The device also includes an electric box 19 arranged on the inner wall of the subway track and an emergency stop button 20 located on the outer side of the bottom end of any linear guide 4. The electric box 19 is used to provide working power for the drive mechanism. A controller can be set in the electric box to connect various sensors and other electronic devices involved in the device. The controller can also be set in the drive component installation compartment of the chassis according to the specific occasion requirements. The emergency stop button 20 is used for the working power supply of the drive mechanism. The device of the utility model can realize the convenient and safe lifting and transportation of the subway inspection trolley. A movable and movable ramp can be set at the bottom of the inspection staircase to prevent water accumulation in the subway track.

[0027] The above description is only a preferred specific implementation manner of the present utility model. It should be pointed out that the protection scope of the present utility model is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the present utility model can make equivalent substitutions or changes based on the technical scheme and utility model concept of the present utility model, which should be covered by the protection scope of the present utility model.

Claims

1. A subway inspection trolley lifting and transporting device, characterized in that: The invention comprises an inspection staircase (1), a tray, a lifting assembly and a driving mechanism, wherein the inspection staircase (1) is provided with multiple steps, the tray is used to carry a subway inspection trolley, and the tray comprises a top plate (2), a bottom plate (3), and a driving component installation compartment surrounded by the top plate (2) and the bottom plate (3); the lifting assembly comprises two sets of linear guide rails (4) and sliders (5) symmetrically installed on both sides of the inspection staircase (1), and the linear guide rails (4) are arranged to be inclined downward along the inspection staircase (1); the driving mechanism comprises a motor driver (6) installed in the driving component installation compartment, a servo motor (7), a worm gear reduction box (8), and a gear rack module (9) installed under the linear guide rails (4); The worm gear reduction box (8) is provided with a first output shaft (81) and a second output shaft (82) perpendicular to the long side direction of the linear guide rail (4); the first output shaft (81) and the second output shaft (82) extend out of the drive component installation compartment and are respectively connected to a gear rack module (9); the power output by the servo motor (7) is transmitted to the corresponding gear rack module (9) via the output shaft of the worm gear reduction box (8); the gear rack module (9) is used to drive the slider (5) to translate on the linear guide rail (4); The sliders (5) on each linear guide rail (4) are provided with a tray soft link (10), the tray soft link (10) connecting the inner side edge of the slider (5) and the outer side edge of the bottom plate (3) of the tray, and the tray soft link (10) is used to realize horizontal support of the tray.

2. A subway inspection trolley lifting and transferring device according to claim 1, characterized in that: The tray is provided with an anti-falling mechanism, which comprises a flap (11) hinged to the outer side of the top plate (2) and an electric push rod for driving the flap (11) to fold.

3. The subway inspection trolley lifting and transferring device according to claim 1 is characterized in that: The worm gear reduction box (8) is further provided with a third output shaft (83) meshingly connected to the first output shaft (81) and the second output shaft (82) inside the reduction box, and a manual crank (12) is provided at the end of the third output shaft (83); The ends of the first output shaft (81) and the second output shaft (82) are both provided with a spline universal joint (13) and a transmission shaft (14), and the ends of the transmission shaft (14) are connected to the corresponding gear rack module (9).

4. The subway inspection vehicle lifting and transferring device according to claim 1 is characterized in that: The inner edge and the outer edge of the pallet are respectively provided with a plurality of position sensors (15) for detecting the position of the pallet on the maintenance staircase (1) and the position of the subway inspection vehicle on the pallet; the top of each linear guide rail (4) is provided with a proximity switch (16) and a status indicator light (17); the proximity switch (16) is used to detect whether the slider (5) thereon has moved to the top of the linear guide rail (4); and each step of the maintenance staircase (1) is provided with a foreign object detection grating (18).

5. The subway inspection vehicle lifting and transferring device according to claim 1 is characterized in that: The device further comprises an electric box (19) arranged on the inner wall of the subway track, and an emergency stop button (20) located outside the bottom end of any linear guide rail (4), the electric box (19) being used to provide working power to the drive mechanism, and the emergency stop button (20) being used to supply working power to the drive mechanism.

6. The subway inspection vehicle lifting and transferring device according to claim 1 is characterized in that: The device is also provided with a dust cover (21) covering the linear guide rail (4) and the slider (5).

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