Rail robot overhauling device

Abstract

The utility model discloses a track robot overhauling device which comprises a track for a robot to run, a limiting mechanism and a lifting mechanism, the track comprises a fixed track and an overhauling track, and the limiting mechanism is arranged at the splicing position of the fixed track and the overhauling track and used for fixedly connecting the overhauling track to the fixed track. When the robot needs to be overhauled, the limiting mechanism can relieve fixation of the overhauling track and can limit the robot on the overhauling track; the lifting mechanism comprises a fixing frame, a sliding plate, a transmission mechanism and a lifting driving device, the sliding plate is installed on the fixing frame in a sliding mode and fixedly connected with the overhauling track, and the transmission mechanism is connected between the sliding plate and the lifting driving device; the lifting driving device is used for driving the sliding plate through the transmission mechanism to drive the overhauling track and the robot on the overhauling track to move up and down. According to the utility model, the maintenance difficulty can be reduced, the risk of equipment damage caused by falling of the robot and breakage of the traction rope is prevented, and the safety performance is high.

Description

Technical Field

[0001] The utility model relates to the technical field of track robots, in particular to a track robot maintenance device. Background Art

[0002] With the continuous development of technology, the application fields of robots are becoming more and more extensive. Among them, the tunnel inspection robot is a robot used for tunnel detection and maintenance. It is usually equipped with various sensors and cameras. It can drive autonomously in the tunnel and perform regular inspection and maintenance of the tunnel structure, equipment and environment to reduce the risks and costs of manual inspections and ensure the safety and reliability of the tunnel. It is one of the important means of modern tunnel management and maintenance.

[0003] Generally speaking, there are tracks installed in tunnels for robots to travel and inspect. When a robot fails or needs regular maintenance, it is currently necessary to manually remove the robot from the track for maintenance. Since the track is usually high, manual operation is difficult, time-consuming and labor-intensive. Therefore, it is necessary to improve the existing technology to overcome the defects in the existing technology. Utility Model Content

[0004] The problem to be solved by the utility model is to provide a rail robot maintenance device to overcome the defects of the prior art that the rail robot maintenance operation is difficult and time-consuming and labor-intensive.

[0005] The utility model adopts a technical solution to solve the technical problem: a track robot maintenance device, comprising:

[0006] A track for the robot to travel, the track comprising a fixed track and at least one section of an inspection track spliced ​​to the fixed track;

[0007] A limiting mechanism is arranged at the joint of the fixed track and the inspection track, and is used to fix the inspection track to the fixed track for the robot to travel normally. When the robot needs to be inspected, the limiting mechanism can release the fixation of the inspection track and can also limit the robot on the inspection track;

[0008] The lifting mechanism includes a fixed frame, a sliding plate, a transmission mechanism and a lifting drive device. The sliding plate is slidably installed on the fixed frame and fixedly connected to the inspection track. The transmission mechanism is connected between the sliding plate and the lifting drive device. The lifting drive device is used to drive the sliding plate through the transmission mechanism to drive the inspection track and the robot thereon to move up and down.

[0009] As a further improvement of the present invention, the limit mechanism includes a limit pin, a socket and a limit drive device, the limit drive device is installed on one side of the inspection rail, the limit pin is fixedly connected to the limit drive device, the socket is installed on one side of the fixed rail and is arranged opposite to the limit pin, the limit drive device can drive the limit pin to be inserted into the socket of the socket to fix the inspection rail to the fixed rail; the limit drive device can also drive the limit pin to be pulled out of the socket of the socket to release the fixation of the inspection rail.

[0010] As a further improvement of the present invention, a limit rod is movably installed on the limit pin. When the limit drive device drives the limit pin to be pulled out from the socket of the socket, the limit pin can drive the limit rod to move to stop and limit the robot on the maintenance track.

[0011] As a further improvement of the present invention, the limit rod includes a guide portion arranged in a vertical direction, a stop portion formed by bending the upper end of the guide portion, and a limit plate fixedly connected to the lower end of the guide portion, the limit plate is provided with an avoidance hole, the limit pin is fixed on the limit latch, and the limit pin is slidably connected to the avoidance hole; the limit mechanism also includes a guide plate installed on one side of the inspection rail, the guide plate is provided with an oblique guide hole, and the guide portion is inserted into the oblique guide hole; when the limit drive device drives the limit latch to move, the limit latch can drive the limit rod to move along the oblique guide hole.

[0012] As a further improvement of the present invention, the transmission mechanism includes a traction rope and a rope winding groove wheel, one end of the traction rope is fixedly connected to the rope winding groove wheel, and the other end of the traction rope is connected to the sliding plate after passing through a number of transition wheels. The lifting drive device is used to drive the rope winding groove wheel to rotate to retract and release the traction rope, thereby driving the sliding plate to move up and down.

[0013] As a further improvement of the utility model, a safety pin is movably installed on the sliding plate, and a spring is mounted on the safety pin. The other end of the traction rope is fixedly connected to the safety pin, and the safety pin compresses the spring under the tension of the traction rope. The fixed frame is provided with a plurality of safety sockets arranged in a vertical direction. When the traction rope breaks, the sliding plate falls freely due to its own gravity, and the safety pin is inserted into a corresponding one of the safety sockets under the elastic force of the spring.

[0014] As a further improvement of the utility model, two first guide seats are installed on the sliding plate, the safety pin is slidably inserted in the two first guide seats, and a boss is provided on the position of the safety pin located between the two first guide seats, and the two ends of the spring elastically rest against the boss and one of the first guide seats respectively.

[0015] As a further improvement of the utility model, the fixed frame includes two columns distributed in the vertical direction, and the two ends of the sliding plate are slidably connected to the two columns through a limiting roller group; the transmission mechanism, the safety pin and the spring are symmetrically arranged in two, and a plurality of safety sockets are correspondingly provided on the two columns.

[0016] As a further improvement of the utility model, the two columns are equipped with an upper limit stop member for stopping the sliding plate at the upper limit position, an upper limit detection switch for detecting the sliding plate moving to the upper limit position, and a lower limit detection switch for detecting the sliding plate moving to the lower limit position.

[0017] As a further improvement of the utility model, the lifting drive device adopts a brake motor, and the limit drive device adopts an electric push rod.

[0018] The beneficial effects of the utility model are:

[0019] 1. The utility model provides a rail robot maintenance device, which arranges at least one section of maintenance track on the track, and the maintenance track is fixedly spliced ​​with the fixed track by a limiting mechanism. When the robot needs to be maintained, the robot travels along the track to the maintenance track, the limiting mechanism releases the fixation of the maintenance track, and the lifting mechanism drives the maintenance track and the robot thereon to descend to a specified height, so that maintenance personnel can perform maintenance operations on the robot, thereby greatly reducing the maintenance difficulty of the maintenance personnel.

[0020] 2. The utility model can also limit the robot on the maintenance track by means of a limiting mechanism, so as to prevent the risk of the robot falling off the maintenance track when the lifting mechanism drives the maintenance track and the robot thereon to move up and down.

[0021] 3. The utility model also adds a safety function in the lifting mechanism, which adopts the method of pulling the safety pin with a traction rope. When the traction rope breaks, the safety pin can be inserted into the safety socket under the elastic force of the spring, which effectively prevents the traction rope from breaking and causing the sliding plate, the maintenance track and the robot thereon to fall and cause damage to the equipment, thereby improving the safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a three-dimensional diagram of the rail robot maintenance device of the utility model;

[0023] Figure 2 This is a three-dimensional diagram of the track robot maintenance device of the utility model after removing the fixed track and the robot;

[0024] Figure 3 For this utility model Figure 2 A magnified view of middle;

[0025] Figure 4 It is a partial cross-sectional view of the rail robot maintenance device of the utility model;

[0026] Figure 5 It is a three-dimensional diagram of the track, robot and limiting mechanism in the utility model;

[0027] Figure 6 It is a three-dimensional diagram of the limiting mechanism of the utility model in a released fixing state.

[0028] Combined with the accompanying drawings, the following description is given:

[0029] 1. Robot; 2. Fixed track; 3. Inspection track; 4. Limiting mechanism;

[0030] 41. Limiting pin; 411. Limiting pin; 42. Plug-in seat; 43. Limiting drive device; 44. Limiting rod; 441. Guide part; 442. Stop part; 443. Limiting plate; 4431. Avoidance hole; 45. Guide plate; 451. Oblique guide hole; 46. Second guide seat; 5. Lifting mechanism; 51. Fixed frame; 52. Sliding plate; 53. Lifting drive device; 54. Traction rope; 55. Rope winding groove wheel; 56. Transition wheel; 57. Safety pin; 571. Boss; 58. Spring; 59. First guide seat; 510. Limiting roller group; 511. Safety socket; 512. Column; 513. Upper limit stopper; 514. Upper limit detection switch; 515. Lower limit detection switch; 516. Rotating shaft; 517. Sprocket-chain transmission mechanism. DETAILED DESCRIPTION

[0031] A preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.

[0032] See also Figures 1 to 6 The utility model provides a rail robot maintenance device, including: a rail for a robot 1 to travel, a limiting mechanism 4 and a lifting mechanism 5.

[0033] The robot 1 of the utility model can be applied to the fields of tunnel inspection, industrial production, intelligent logistics, etc. For ease of understanding, this embodiment is described by taking the application of the robot 1 to tunnel inspection as an example.

[0034] The track includes a fixed track 2 and at least one section of an inspection track 3. One side of the fixed track 2 is fixedly installed in the tunnel through a track fixing bracket. The inspection track 3 is spliced ​​to the fixed track 2 to form a complete track.

[0035] In this embodiment, the inspection track 3 is located in the middle section of the track, and both ends of the inspection track 3 are spliced ​​with fixed tracks 2. Of course, in other possible implementation schemes of the present utility model, the inspection track 3 can also be located at the beginning or end of the track.

[0036] Furthermore, the maintenance track 3 can be driven up and down by the lifting mechanism 5. When the robot 1 needs maintenance, the robot 1 travels along the track to the maintenance track 3, and the lifting mechanism 5 drives the maintenance track 3 and the robot 1 thereon to descend to a specified height, so that the maintenance personnel can perform maintenance work on the robot 1, thereby greatly reducing the maintenance difficulty of the maintenance personnel.

[0037] Furthermore, the limiting mechanism 4 is arranged at the joint of the fixed track 2 and the maintenance track 3, and is used to fix the maintenance track 3 to the fixed track 2 to be spliced ​​into a complete track for the normal travel of the robot 1; and when the robot 1 needs to be overhauled, the limiting mechanism 4 can release the fixation of the maintenance track 3, allowing the lifting mechanism 5 to drive the maintenance track 3 to move, and at the same time, the limiting mechanism 4 can also limit the robot 1 on the maintenance track 3 to prevent the risk of the robot 1 falling off the maintenance track 3 during the process of the lifting mechanism 5 driving the maintenance track 3 and the robot 1 thereon to move up and down.

[0038] See also Figure 5 and Figure 6 The limit mechanism 4 includes a limit pin 41, a socket 42 and a limit drive device 43. The limit drive device 43 is installed on one side of the inspection track 3 in the horizontal direction through a bottom plate. The limit pin 41 is fixedly connected to the output shaft of the limit drive device 43. The limit drive device 43 can drive the limit pin 41 to reciprocate in the horizontal direction. In addition, a second guide seat 46 is fixedly installed on one side of the inspection track 3. The middle part of the limit pin 41 slides and inserts into the second guide seat 46. The second guide seat 46 is used to guide and support the movement of the limit pin 41.

[0039] Furthermore, the connector 42 is fixedly installed on one side of the fixed rail 2 and is arranged opposite to the limit pin 41. The limit driving device 43 can drive the limit pin 41 to be inserted into the socket of the connector 42 to fix the inspection rail 3 to the fixed rail 2; the limit driving device 43 can also drive the limit pin 41 to be pulled out from the socket of the connector 42 to release the fixation of the inspection rail 3.

[0040] In this embodiment, the second guide seat 46 is fixed to one side of the inspection rail 3 through an L-shaped fixing plate; similarly, the plug-in seat 42 is fixed to one side of the fixed rail 2 through another L-shaped fixing plate.

[0041] Exemplarily, the second guide seat 46 and the plug seat 42 can both adopt flange-type bearing seats; the limit drive device 43 can adopt an electric push rod or a linear module, etc., and the electric push rod is preferred in this embodiment.

[0042] It is worth mentioning that a limit rod 44 is movably installed on the limit pin 41 in the utility model. When the limit driving device 43 drives the limit pin 41 to be pulled out from the socket of the socket 42, the limit pin 41 can drive the limit rod 44 to move to stop and limit the robot 1 on the maintenance track 3, thereby preventing the robot 1 from falling off the maintenance track 3; when the limit driving device 43 drives the limit pin 41 to be inserted into the socket of the socket 42, the limit pin 41 can drive the limit rod 44 to move to release the limit on the robot 1, so that the robot 1 can run freely on the track.

[0043] like Figure 6 As shown, the limiting rod 44 includes a guide portion 441 arranged in the vertical direction, a stopper portion 442 formed by vertically bending the upper end of the guide portion 441, and a limiting plate 443 fixedly connected to the lower end of the guide portion 441. The limiting plate 443 is distributed in the horizontal direction, and is provided with an avoidance hole 4431, which is waist-shaped. In this embodiment, the avoidance hole 4431 is vertically distributed with the limiting pin 41. A limiting pin 411 is fixed on the top of the limiting pin 41, and the limiting pin 411 is slidably connected in the avoidance hole 4431. Under the action of the limiting pin 411, the limiting plate 443 can only move horizontally relative to the limiting pin 411 along the length direction of the avoidance hole 4431.

[0044] In addition, the limiting mechanism 4 further includes a guide plate 45, which is fixed to one side of the inspection rail 3 in the horizontal direction and is located above the limiting pin 41. The guide plate 45 is provided with an oblique guide hole 451, and the guide portion 441 of the limiting rod 44 is inserted into the oblique guide hole 451. When the limiting driving device 43 drives the limiting pin 41 to move, the limiting pin 41 can drive the limiting rod 44 to move along the oblique guide hole 451 under the cooperation between the limiting pin 411 and the avoidance hole 4431, and the cooperation between the guide portion 441 and the oblique guide hole 451.

[0045] Specifically, when the limit driving device 43 drives the limit pin 41 to be pulled out from the plug hole of the socket 42, the limit pin 41 drives the limit rod 44 to slide to the left end of the oblique guide hole 451 (with Figure 6For reference, the same below), at this time, the stopper 442 of the limit rod 44 moves to the moving path of the robot 1's walking parts, such as rollers, to stop and limit the walking parts of the robot 1. When the limit drive device 43 drives the limit pin 41 to insert into the socket of the socket 42, the limit pin 41 drives the limit rod 44 to slide to the right end of the oblique guide hole 451. At this time, the stopper 442 of the limit rod 44 is away from the moving path of the robot 1's walking parts, and no longer stops and limits the walking parts of the robot 1, so that the robot 1 can run freely on the track.

[0046] See also Figure 2 and Figure 3 The lifting mechanism 5 includes a fixing frame 51 , a sliding plate 52 , a transmission mechanism and a lifting driving device 53 .

[0047] In this embodiment, the fixing frame 51 is in the shape of a rectangular frame, and the four corners of one side thereof are fixedly installed in the tunnel through lifting mounting brackets. The fixing frame 51 includes two vertically distributed columns 512 and two horizontally distributed cross plates, and the two cross plates are respectively fixedly connected to the upper and lower ends of the two columns 512. The sliding plate 52 is distributed in parallel with the two cross plates, and both ends of the sliding plate 52 are installed with a limiting roller group 510, and the two ends of the sliding plate 52 are respectively slidably connected to the two columns 512 through the limiting roller group 510.

[0048] Exemplarily, the limit roller group 510 includes two inner limit rollers and two outer limit rollers. The column 512 can be made of channel steel. The two inner limit rollers are arranged in the groove of the column 512, and the two outer limit rollers are arranged on the two outer sides of the column 512. The two inner limit rollers and the two outer limit rollers roll with the column 512 to ensure the stability of the up and down movement of the sliding plate 52.

[0049] Furthermore, one side of the inspection track 3 is fixedly connected to the sliding plate 52 through two connecting frames, and the transmission mechanism is connected between the sliding plate 52 and the lifting drive device 53. The lifting drive device 53 is used to drive the sliding plate 52 through the transmission mechanism to drive the inspection track 3 and the robot 1 on the inspection track 3 to move up and down.

[0050] Among them, the transmission mechanism includes a traction rope 54 and a rope winding groove wheel 55. The rope winding groove wheel 55 is rotatably installed on the horizontal plate at the bottom of the fixed frame 51. A plurality of transition wheels 56 are also rotatably installed on the horizontal plate at the top of the fixed frame 51. One end of the traction rope 54 is fixedly connected to the rope winding groove wheel 55, and the other end of the traction rope 54 is connected to the sliding plate 52 after winding through a plurality of transition wheels 56. The lifting drive device 53 is used to drive the rope winding groove wheel 55 to rotate to retract and release the traction rope 54, thereby driving the sliding plate 52 to move up and down.

[0051] Preferably, the traction rope 54 is a steel wire rope.

[0052] See also Figure 3 and Figure 4 A safety pin 57 is movably mounted on the sliding plate 52, and a spring 58 is mounted on the safety pin 57. The other end of the traction rope 54 is fixedly connected to the safety pin 57. The safety pin 57 compresses the spring 58 under the tension of the traction rope 54. A plurality of safety sockets 511 are arranged in a vertical direction on the column 512 of the fixed frame 51. When the traction rope 54 breaks, the traction rope 54 no longer applies tension to the sliding plate 52 through the safety pin 57. The sliding plate 52 falls freely under its own gravity. At the same time, the safety pin 57 extends outward under the elastic force of the spring 58. When the sliding plate 52 falls to the point where the safety pin 57 is opposite to the first safety socket 511 below, the safety pin 57 is inserted into the safety socket 511 under the elastic force of the spring 58, so as to prevent the traction rope 54 from breaking and causing the sliding plate 52, the inspection track 3 and the robot 1 thereon to fall and cause equipment damage, thereby improving safety performance.

[0053] The sliding plate 52 has two first guide seats 59 installed side by side near the top of one end thereof, and the safety pin 57 is slidably inserted in the two first guide seats 59, and the two first guide seats 59 guide and support the safety pin 57. For example, the first guide seat 59 can also be a flange-type bearing seat, which is specifically fixedly installed on the sliding plate 52 through an L-shaped fixing plate.

[0054] like Figure 4 As shown, the safety pin 57 is provided with an annular boss 571 at the position between the two first guide seats 59, one end of the spring 58 elastically rests on the boss 571, and the other end of the spring 58 elastically rests on a first guide seat 59 away from the corresponding column 512, so that the spring 58 in the compressed state always applies an elastic force to the safety pin 57 in the direction of the column 512.

[0055] Preferably, the transmission mechanism, the safety pin 57 and the spring 58 in this embodiment are symmetrically arranged in two, and a plurality of safety sockets 511 are correspondingly arranged on the two columns 512. Among them, the two rope sheaves 55 are connected by a rotating shaft 516, and the two traction ropes 54 are connected one by one between the two rope sheaves 55 and the two safety pins 57; the output shaft of the lifting drive device 53 is connected to the rotating shaft 516 by a sprocket-chain transmission mechanism 517, and the lifting drive device 53 can drive the two rope sheaves 55 to rotate simultaneously through the sprocket-chain transmission mechanism 517, and pull the safety pins 57 connected to each other through the two traction ropes 54 at the same time, so as to jointly drive the sliding plate 52 to move up and down, so as to improve the stability and reliability of the drive, and at the same time, the safety can be further improved by configuring two traction ropes 54 and two safety pins 57.

[0056] Preferably, the lifting drive device 53 in this embodiment adopts a brake motor. Under the action of the brake motor, whether the robot 1 is in normal working state or maintenance state, the traction rope 54 can keep pulling the safety pin 57 and keep the spring 58 in a compressed state.

[0057] In addition, in this embodiment, upper limit stoppers 513, upper limit detection switches 514 and lower limit detection switches 515 are installed on both columns 512. The upper limit detection switch 514 is used to detect the sliding plate 52 that moves to the upper limit position (i.e., the position when the maintenance track 3 and the fixed track 2 are just spliced) to control the lifting drive device 53 to stop. The upper limit stopper 513 is located above the sliding plate 52 and is used to stop the sliding plate 52 at the upper limit position to prevent the sliding plate 52 from being driven by the lifting drive device 53 to deviate from the predetermined upper limit position when the upper limit detection switch 514 fails. The lower limit detection switch 515 is used to detect the sliding plate 52 that moves to the lower limit position (i.e., the maintenance position where the maintenance track 3 and the robot 1 thereon land to reach) to control the lifting drive device 53 to stop.

[0058] Exemplarily, the upper limit detection switch 514 is a proximity switch, and the lower limit detection switch 515 is a limit switch.

[0059] When the robot 1 is inspected normally, the inspection track 3 is spliced ​​with the fixed track 2 and fixed by the limit mechanism 4. When the robot 1 needs to be inspected, the robot 1 first moves to the inspection track 3, and then the two limit mechanisms 4 act at the same time, and the limit drive device 43 in the limit mechanism 4 drives the limit pin 41 to be pulled out from the socket of the socket 42 to release the fixation of the inspection track 3; at the same time, the limit pin 41 drives the limit rod 44 to move to stop the robot 1 on the inspection track 3 to prevent the robot 1 from falling off the inspection track 3; then, the lifting drive device 53 drives the sliding plate 52 through the transmission mechanism to drive the inspection track 3 and the robot 1 on the inspection track 3 to move downward until they reach the detection position, so as to facilitate the maintenance personnel to perform maintenance; after the maintenance is completed, the lifting drive device 53 drives the sliding plate 52 to drive the inspection track 3 and the robot 1 on the inspection track 3 to move upward and reset, and finally the two limit mechanisms 4 are reset, and the robot 1 runs freely on the track.

[0060] It can be seen that the rail robot maintenance device of the utility model arranges at least one section of maintenance track 3 on the track, and the maintenance track 3 is fixedly spliced ​​with the fixed track 2 by the limiting mechanism 4. When the robot 1 needs to be maintained, the robot 1 travels along the track to the maintenance track 3, and the limiting mechanism 4 releases the fixation of the maintenance track 3. The lifting mechanism 5 drives the maintenance track 3 and the robot 1 thereon to descend to a specified height, so that the maintenance personnel can perform maintenance operations on the robot 1, thereby greatly reducing the maintenance difficulty of the maintenance personnel. At the same time, the limiting mechanism 4 can also be used to adjust the maintenance track 3 is limited to prevent the risk of the robot 1 falling off the maintenance track 3 when the lifting mechanism 5 drives the maintenance track 3 and the robot 1 thereon to move up and down; in addition, the utility model also adds a safety function in the lifting mechanism 5, and adopts the method of pulling the safety pin 57 with a traction rope 54. When the traction rope 54 breaks, the safety pin 57 can be inserted into the safety socket 511 under the elastic force of the spring 58, which effectively prevents the traction rope 54 from breaking and causing the sliding plate 52, the maintenance track 3 and the robot 1 thereon to fall and cause equipment damage, thereby improving the safety performance.

[0061] In the above description, many specific details are described to facilitate a full understanding of the present invention. However, the above description is only a preferred embodiment of the present invention. The present invention can be implemented in many other ways different from those described herein, so the present invention is not limited by the specific implementation disclosed above. At the same time, any person familiar with the technical field can make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. A rail robot maintenance device, characterized in that: include: A track for a robot (1) to travel on, the track comprising a fixed track (2) and at least one section of an inspection track (3) spliced ​​to the fixed track (2); A limiting mechanism (4) is arranged at the joint of the fixed track (2) and the inspection track (3), and is used to fix the inspection track (3) to the fixed track (2) so that the robot (1) can travel normally. When the robot (1) needs to be inspected, the limiting mechanism (4) can release the fixation of the inspection track (3) and can also limit the robot (1) on the inspection track (3); A lifting mechanism (5) comprises a fixed frame (51), a sliding plate (52), a transmission mechanism and a lifting drive device (53); the sliding plate (52) is slidably mounted on the fixed frame (51) and fixedly connected to the inspection track (3); the transmission mechanism is connected between the sliding plate (52) and the lifting drive device (53); the lifting drive device (53) is used to drive the sliding plate (52) through the transmission mechanism to drive the inspection track (3) and the robot (1) thereon to move up and down.

2. The rail robot maintenance device according to claim 1, characterized in that: The limiting mechanism (4) comprises a limiting pin (41), a socket (42) and a limiting drive device (43); the limiting drive device (43) is installed on one side of the inspection rail (3); the limiting pin (41) is fixedly connected to the limiting drive device (43); the socket (42) is installed on one side of the fixed rail (2) and is arranged opposite to the limiting pin (41); the limiting drive device (43) can drive the limiting pin (41) to be inserted into the socket of the socket (42) so as to fix and splice the inspection rail (3) to the fixed rail (2); the limiting drive device (43) can also drive the limiting pin (41) to be withdrawn from the socket of the socket (42) so as to release the fixation of the inspection rail (3).

3. The rail robot maintenance device according to claim 2, characterized in that: A limit rod (44) is movably mounted on the limit pin (41). When the limit drive device (43) drives the limit pin (41) to be withdrawn from the socket of the socket (42), the limit pin (41) can drive the limit rod (44) to move so as to stop and limit the robot (1) on the inspection track (3).

4. The rail robot maintenance device according to claim 3, characterized in that: The limiting rod (44) comprises a guide portion (441) arranged in a vertical direction, a stop portion (442) formed by bending the upper end of the guiding portion (441), and a limiting plate (443) fixedly connected to the lower end of the guiding portion (441), wherein the limiting plate (443) is provided with an avoidance hole (4431), and a limiting pin (411) is fixed on the limiting latch (41), and the limiting pin (411) is slidably connected to the avoidance hole (4431). 1); the limiting mechanism (4) further comprises a guide plate (45) mounted on one side of the inspection track (3); the guide plate (45) is provided with an oblique guide hole (451), and the guide portion (441) is inserted into the oblique guide hole (451); when the limiting driving device (43) drives the limiting latch (41) to move, the limiting latch (41) can drive the limiting rod (44) to move along the oblique guide hole (451).

5. The rail robot maintenance device according to claim 1, characterized in that: The transmission mechanism comprises a traction rope (54) and a rope winding groove wheel (55), one end of the traction rope (54) is fixedly connected to the rope winding groove wheel (55), and the other end of the traction rope (54) is connected to the sliding plate (52) after winding through a plurality of transition wheels (56), and the lifting drive device (53) is used to drive the rope winding groove wheel (55) to rotate so as to retract and release the traction rope (54), thereby driving the sliding plate (52) to move up and down.

6. The rail robot maintenance device according to claim 5, characterized in that: A safety pin (57) is movably mounted on the sliding plate (52), and a spring (58) is mounted on the safety pin (57). The other end of the traction rope (54) is fixedly connected to the safety pin (57). The safety pin (57) compresses the spring (58) under the tension of the traction rope (54). The fixing frame (51) is provided with a plurality of safety sockets (511) arranged in a vertical direction. When the traction rope (54) breaks, the sliding plate (52) falls freely due to its own gravity, and the safety pin (57) is inserted into a corresponding one of the safety sockets (511) under the elastic force of the spring (58).

7. The rail robot maintenance device according to claim 6, characterized in that: Two first guide seats (59) are installed on the sliding plate (52), the safety pin (57) is slidably inserted in the two first guide seats (59), and a boss (571) is provided on the portion of the safety pin (57) located between the two first guide seats (59), and two ends of the spring (58) elastically abut against the boss (571) and one of the first guide seats (59), respectively.

8. The rail robot maintenance device according to claim 6, characterized in that: The fixing frame (51) comprises two vertically distributed columns (512), and the two ends of the sliding plate (52) are respectively slidably connected to the two columns (512) through limiting roller groups (510); the transmission mechanism, the safety pin (57) and the spring (58) are symmetrically arranged in two, and the two columns (512) are respectively provided with a plurality of safety sockets (511).

9. The rail robot maintenance device according to claim 8, characterized in that: An upper limit stopper (513) for stopping the sliding plate (52) at the upper limit position, an upper limit detection switch (514) for detecting the sliding plate (52) moving to the upper limit position, and a lower limit detection switch (515) for detecting the sliding plate (52) moving to the lower limit position are installed on both of the two uprights (512).

10. The rail robot maintenance device according to claim 2, characterized in that: The lifting drive device (53) adopts a brake motor, and the limit drive device (43) adopts an electric push rod.

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