Walking device for elevator of gate derusting machine and using method of walking device

Abstract

The invention provides a walking device for a gate derusting machine lifter and a using method of the walking device. The walking device comprises the lifter, a lifter driving frame and a fixing frame connected with the lifter, and a first wheel set and a second wheel set are arranged on the two sides of the fixing frame; the first wheel set and the second wheel set on the same side are in transmission connection through a track; the fixing frame is connected with the lifter through a connecting plate. According to the walking device for the elevator of the gate derusting machine and the using method of the walking device, in the moving process of the elevator, the elevator is always close to a gate through the walking device, the gate is always attracted through a magnetic attraction type caterpillar band of the walking device, and therefore the stability during lifting is guaranteed; and when lifting is stopped, further adsorption can be achieved, the stability during rust removal work is improved, and the safety is higher.

Description

Technical Field

[0001] The invention relates to the technical field of gate rust removal, and in particular to a walking device for a gate rust removal machine elevator and a use method thereof. Background Art

[0002] A ship lock is a box-shaped hydraulic structure that is used to ensure the smooth passage of ships and concentrate the water level difference on the channel. For example, the Three Gorges double-line continuous five-level ship lock is the main navigation facility of the Three Gorges hub. There are generally multiple gates in the ship lock for coordinated use. The gates are coated with a protective coating to ensure the long-term stable use of the gates. For example, the Three Gorges double-line five-level ship lock has been operating safely and stably for nearly 20 years. However, after long-term use of metal structure equipment such as the gate of the ship lock, the surface coating will gradually approach the design protection period, so it needs to be rust-removed. When removing rust, a gate rust remover and a matching elevator will be used. The gate rust remover is used to remove rust on the gate, such as a sandblasting rust remover, etc. It can be manually operated or automatically operated according to needs, and the elevator is used to transport the gate rust remover and rust removal staff; However, during the rust removal process, since the gate rust removal machine elevator is close to the gate and there is no buffer or fixed structure between it and the gate, its stability is poor during the actual working process, and there are certain safety hazards. Summary of the invention

[0003] The main purpose of the present invention is to provide a walking device for a gate rust remover lift and a use method thereof, so as to solve the problem of poor stability of the gate rust remover lift during operation.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: A walking device for a gate derusting machine elevator comprises an elevator and an elevator driving frame, the elevator is connected to a fixing frame, and a first wheel group and a second wheel group are arranged on both sides of the fixing frame; The first wheel set and the second wheel set on the same side are connected by a crawler drive; The fixing frame is connected with the lifting machine through a connecting plate.

[0005] In a preferred solution, the fixed frame is provided with a probe; the probe is used to detect the travel path of the crawler track; A threaded column and a plurality of guide rods are provided on one side of the connecting plate close to the elevator, and the threaded column and the guide rods slide through the elevator; A worm gear is provided inside the elevator, and the worm gear is threadedly connected to the outside of the threaded column; The elevator is provided with a second motor, the output shaft of the second motor is provided with a worm, and the worm is meshed with the worm wheel.

[0006] In a preferred solution, the first wheel group includes a plurality of first rollers, a first movable groove is provided in the fixing frame, and a shaft sleeve is provided in the first movable groove; The first roller is provided with a first rotating shaft, and the first rotating shaft is connected to the shaft sleeve; The first rotating shaft is provided with a rotation angle sensor; A first electric push rod is arranged in the fixing frame, and an output end of the first electric push rod is connected with the shaft sleeve.

[0007] In a preferred solution, the second wheel set includes a plurality of second rollers, a second movable groove is provided in the fixing frame, and a movable sleeve is provided in the second movable groove; The second roller is provided with a second rotating shaft, and the second rotating shaft is connected to the movable sleeve; A second electric push rod is arranged in the fixed frame, and an output end of the second electric push rod is connected to the movable sleeve; The inner side of the crawler is provided with a plurality of tooth grooves, and the circumferential surfaces of the first roller and the second roller are provided with tooth blocks matched with the tooth grooves.

[0008] In a preferred solution, a plurality of magnetic blocks are provided on the surface of the crawler track, and the magnetic blocks are evenly spaced.

[0009] In the preferred solution, a stabilizing mechanism is also provided in the fixing frame for fixing the lift after it stops; The stabilizing mechanism includes a movable seat slidably connected to the interior of the fixed frame, and a first electromagnet is provided on a side of the movable seat away from the lifter; A first motor is arranged in the fixing frame, an output shaft of the first motor is arranged with a threaded rod, the threaded rod extends to the inside of the movable seat, and the threaded rod is threadedly connected with the movable seat.

[0010] In a preferred solution, a stabilizing mechanism is provided in the fixing frame, and the stabilizing mechanism is used to maintain the stability of the fixing frame movement; The stabilizing mechanism includes a plurality of connecting blocks arranged on the inner wall of the crawler track, and a second electromagnet is arranged in the connecting block; The circumferential surfaces of the first roller and the second roller are provided with movable grooves, and the width of the movable grooves is greater than the diameter of the connecting block.

[0011] In a preferred solution, the first roller is composed of two roller pieces, and a movable groove is formed between the two roller pieces; A connecting sleeve is provided outside the first rotating shaft, the connecting sleeve is provided with a fixing rod, the fixing rod is provided with a plurality of connecting rods, and the fixing rod is provided with a fixing sleeve through the connecting rod; A connecting groove is provided on one side of the fixed sleeve close to the crawler track, and when the crawler track rotates, the connecting block can be driven through the connecting groove; The inner wall of the connection groove is provided with a first electrical connection piece, and the connection block is provided with a second electrical connection piece; when the connection block is located in the connection groove, the first electrical connection piece and the second electrical connection piece are electrically connected; Wire holes are provided in the fixing rod and the connecting rod; The first power terminal is connected to an external power source through a connecting line, and the second power terminal and the second electromagnet are connected to an external power source through a connecting line.

[0012] A method for using a walking device for a gate derusting machine elevator comprises the following steps during the lifting process of the elevator: S1. Use a probe to detect whether there is a protrusion on the route, and record the distance L to the protrusion, the protrusion height H and the protrusion length M; S2, recording the rotation angle of the first roller through the rotation angle sensor; S3, calculating the moving distance of the first roller according to the rotation angle, the diameter of the first roller and the thickness of the track; S4, when the moving distance of the first roller approaches L, the first roller is driven to move H by the first electric push rod; S5, after the first roller continues to move M along the gate, the first electric push rod is reset to drive the first roller to reset; S6. The first roller continues to rotate along with the lifting of the fixing frame.

[0013] In the preferred solution, the crawler always moves close to the gate, and the crawler is attached to the gate by magnets; Each first roller calculates L independently; After the lift stops moving, the following steps are included: S71, the first motor starts to drive the threaded rod to rotate; S72, the movable seat moves toward the gate; S73, the first electromagnet touches the gate, and the first motor stops moving; S74, the first electromagnet starts to tightly attract the gate.

[0014] The present invention provides a walking device for a gate rust remover lift and a method for using the same. By adopting the above scheme, the following beneficial effects are achieved: 1. During the movement of the elevator, the traveling device always keeps close to the gate, and the magnetic adsorption crawler of the traveling device always adsorbs the gate, thus ensuring the stability during lifting.

[0015] 2. It can further absorb when the lifting stops, which increases the stability during rust removal work and is safer.

[0016] 3. During the lifting process, the walking device can automatically cross obstacles, thereby further increasing the stability of the elevator during lifting.

[0017] 4. Only the second electromagnet close to the gate works to complete the adsorption function, while the second electromagnets in other parts do not work, which can avoid the adverse effects of the second electromagnets in other positions on other equipment.

[0018] 5. When the connecting block moves away from the gate, the corresponding second electromagnet is powered off, which will not affect the connection block moving away from the gate, ensuring stability and smoothness of the movement.

[0019] 6. The distance between the walking device and the lift can be adjusted to suit different usage conditions, with better adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a working state diagram of a walking device for a gate derusting machine elevator of the present invention; Figure 2 It is a schematic structural diagram of an embodiment of a walking device for a gate rust remover lifter of the present invention; Figure 3 It is a cross-sectional structural schematic diagram of an embodiment of a walking device for a gate derusting machine elevator of the present invention; Figure 4 It is a schematic structural diagram of an embodiment of a walking device for a gate rust remover lifter of the present invention; Figure 5 It is a cross-sectional structural schematic diagram of an embodiment of a walking device for a gate derusting machine elevator of the present invention; Figure 6 is a schematic cross-sectional view of the stabilizing mechanism of the present invention; Figure 7 is a schematic diagram of a top view of the structure of the stabilizing mechanism of the present invention; Figure 8 It is a structural schematic diagram of the connection between the fixing frame and the elevator of the present invention.

[0021] In the figure: Elevator 101, elevator drive frame 102, fixed frame 2, connecting plate 201, guide rod 202, threaded column 203, second motor 204, worm 205, worm wheel 206, first wheel group 3, first movable groove 301, shaft sleeve 302, rotation angle sensor 303, first rotating shaft 304, first roller 305, first electric push rod 306, second wheel group 4, second movable groove 401, movable sleeve 402, second rotating shaft 403, second roller 404, The second electric push rod 405, the track 5, the magnetic block 501, the stabilizing mechanism 6, the movable seat 601, the first electromagnet 602, the first motor 603, the threaded rod 604, the probe 7, the stabilizing mechanism 8, the connecting block 801, the movable groove 802, the connecting sleeve 803, the fixed rod 804, the connecting rod 805, the fixed sleeve 806, the connecting groove 807, the first power terminal 808, the second power terminal 809, the second electromagnet 810, the wire hole 811, and the connecting wire 812. DETAILED DESCRIPTION

[0022] Embodiment 1: like Figure 1 , 2 As shown in 3, a walking device for a gate rust removal machine elevator includes an elevator 101 and an elevator driving frame 102. The elevator 101 refers to the gate surface rust removal equipment and its connecting frame, that is, an existing frame is used, and then the existing gate rust removal equipment is set on the frame, or a rust removal work platform is set; the elevator driving frame 102 can use existing lifting equipment, such as using a motor to drive a winding drum, the winding drum is provided with a steel rope, the steel rope is connected to the elevator 101, and the motor drives the winding drum to rotate and retract the steel rope to complete the lifting and lowering of the elevator 101.

[0023] The lift 101 is connected to a fixed frame 2, and a first wheel set 3 and a second wheel set 4 are provided on both sides of the fixed frame 2; The first wheel set 3 and the second wheel set 4 on the same side are connected by a crawler belt 5; The fixing frame 2 is connected to the lift 101 via a connecting plate 201 .

[0024] During the process of the lift 101 rising and falling, the crawler 5 always moves up and down close to the gate. The crawler-type movement mode can adapt to the uneven surface of the gate and provide more stable walking support.

[0025] In the preferred solution, the fixed frame 2 is provided with a probe 7; the probe 7 is used to detect the travel path of the crawler 5; it can detect obstacles such as bumps on the travel path in advance, and provide data support for subsequent adjustment actions; the probe 7 is preferably a 3D scanning probe, which transmits the detection data to the control unit in an existing manner, and the control unit obtains the information of the bumps on the path in an existing manner based on the acquired data, so as to facilitate subsequent response, and the control unit can use the control device provided by the existing rust removal equipment.

[0026] In a further embodiment, the first wheel set 3 includes a plurality of first rollers 305, a first movable groove 301 is provided in the fixing frame 2, and a shaft sleeve 302 is provided in the first movable groove 301; The first roller 305 is provided with a first rotating shaft 304, and the first rotating shaft 304 is connected to the shaft sleeve 302; The first rotating shaft 304 is provided with an angle sensor 303. The angle sensor 303 adopts an existing angle sensor and is detected, connected and controlled in an existing manner. The angle sensor 303 can accurately measure the rotation angle of the first roller 305 so as to calculate its moving distance. A first electric push rod 405 is disposed in the fixing frame 2 , and an output end of the first electric push rod 405 is connected to the shaft sleeve 302 . The first electric push rod 405 can be connected and controlled in an existing manner.

[0027] By starting the first electric push rod 405, the sleeve 302 can be driven to move, thereby driving the first rotating shaft 304 and the first roller 305 to move, and the position of the first roller 305 can be adjusted, which is used to adjust the position of the first roller 305 according to the detected situation.

[0028] In a further embodiment, the second wheel set 4 includes a plurality of second rollers 404, a second movable groove 401 is provided in the fixing frame 2, and a movable sleeve 402 is provided in the second movable groove 401; The second roller 404 is provided with a second rotating shaft 403, and the second rotating shaft 403 is connected to the movable sleeve 402; A second electric push rod 405 is provided in the fixing frame 2, and the output end of the second electric push rod 405 is connected to the movable sleeve 402; the second electric push rod 405 can be connected and controlled in an existing manner; When in use, by starting the second electric push rod 405, the movable sleeve 402 can be driven to move, thereby driving the second rotating shaft 403 and the second roller 404 to move, so as to adjust the position of the second roller 404, and cooperate with the first wheel group 3 to ensure the normal operation of the crawler 5 and adaptability to different road conditions.

[0029] The inner side of the crawler belt 5 is provided with a plurality of tooth grooves, and the circumferential surfaces of the first roller 305 and the second roller 404 are provided with tooth blocks adapted to the tooth grooves, thereby ensuring the transmission between the first roller 305 and the second roller 404 and the crawler belt 5 .

[0030] In the preferred solution, a plurality of magnetic blocks 501 are provided on the surface of the track 5, and the magnetic blocks 501 are evenly spaced, so that the track 5 can be tightly adsorbed on the gate surface by magnetic force, thereby increasing the stability and reliability of walking and preventing slipping during walking.

[0031] Embodiment 2: like Figure 8 As shown, a threaded column 203 and a plurality of guide rods 202 are provided on one side of the connecting plate 201 close to the elevator 101, and the threaded column 203 and the guide rod 202 slide through the elevator 101; The movable direction of the connecting plate 201 is limited by the guide rod 202 .

[0032] A worm gear 206 is rotatably disposed inside the lift 101 , and the worm gear 206 is threadedly connected to the outside of the threaded column 203 ; The lift 101 is provided with a second motor 603, the output shaft of the second motor 603 is provided with a worm 205, the worm 205 is meshed with a worm wheel 206, and the second motor 603 is preferably a servo motor or a stepper motor, which can be connected and controlled in the existing way.

[0033] Starting the second motor 603 can drive the worm 205 to rotate, which can drive the worm wheel 206 to rotate, thereby driving the threaded column 203 to move, which can drive the connecting plate 201 and the fixing frame 2 to move, so as to adjust the distance between the elevator 101 and the gate to adapt to different usage conditions.

[0034] Embodiment 3: like Figure 3 As shown, a stabilizing mechanism 6 is also provided in the fixing frame 2 for fixing the lift 101 after it stops; The stabilizing mechanism 6 includes a movable seat 601 slidably connected to the interior of the fixing frame 2, and a first electromagnet 602 is provided on a side of the movable seat 601 away from the lift 1; A first motor 603 is provided in the fixing frame 2, and a threaded rod 604 is provided on the output shaft of the first motor 603. The threaded rod 604 extends to the inside of the movable seat 601, and the threaded rod 604 is threadedly connected to the movable seat 601. The first motor 603 is preferably a servo motor or a stepper motor, which can be connected and controlled in the existing way.

[0035] When in use, start the first motor 603 to drive the threaded rod 604 to rotate, drive the movable seat 601 to move, so that the first electromagnet 602 is adsorbed on the gate, and then start the first electromagnet 602 so that the first electromagnet 602 is tightly adsorbed on the gate, thereby achieving stable fixation of the elevator 101 after stopping.

[0036] Embodiment 4: like Figure 4 , 5 As shown in , 6 and 7, a stabilizing mechanism 8 is provided in the fixing frame 2, and the stabilizing mechanism 8 is used to maintain the stability of the movement of the fixing frame 2; The stabilizing mechanism 8 includes a plurality of connecting blocks 801 disposed on the inner wall of the crawler 5, and a second electromagnet 810 is disposed in the connecting block 801; A movable groove 802 is formed on the circumferential surface of the first roller 305 and the second roller 404 . The width of the movable groove 802 is greater than the diameter of the connecting block 801 .

[0037] In a preferred embodiment, the first roller 305 is composed of two roller pieces, and a movable groove 802 is formed between the two roller pieces. The movable groove 802 is used for the connection block 801 to pass through, so that the connection block 801 will not hit the first roller 305 and the second roller 404 when the crawler 5 moves; The first rotating shaft 304 is provided with a connecting sleeve 803 on the outside, the connecting sleeve 803 is provided with a fixing rod 804, the fixing rod 804 is provided with a plurality of connecting rods 805, and the fixing rod 804 is provided with a fixing sleeve 806 via the connecting rod 805; A connecting groove 807 is provided on one side of the fixing sleeve 806 close to the crawler 5, and when the crawler 5 rotates, the connecting block 801 can be driven to pass through the connecting groove 807; The inner wall of the connection groove 807 is provided with a first electrical connection piece 808, and the connection block 801 is provided with a second electrical connection piece 809; when the connection block 801 is located in the connection groove 807, the first electrical connection piece 808 and the second electrical connection piece 809 are electrically connected; The fixing rod 804 and the connecting rod 805 are provided with wire holes 811; The first power terminal 808 is connected to an existing power source via a connecting line 812 , and the second power terminal 809 and the second electromagnet 810 are connected to an existing power source via a connecting line 812 .

[0038] During the lifting process of the elevator 101, the crawler belt 5 rotates, and the connection block 801 is driven to move during the rotation. When the connection block 801 moves close to the gate, the connection block 801 will synchronously move into the connection groove 807. At this time, the second power contact piece 809 of the connection block 801 will contact the first power contact piece 808. At this time, the circuit is connected, and the second electromagnet 810 is energized to work. At this time, a magnetic force can be generated to tightly adsorb the gate, thereby stabilizing the elevator 101 during the lifting process.

[0039] After the connecting block 801 moves away from the connecting groove 807, the corresponding second power connecting piece 809 is separated from the first power connecting piece 808, so that the magnetic force is no longer generated. Therefore, during the operation, only the second electromagnet 810 close to the gate works to complete the adsorption function, while the second electromagnets 810 in other parts do not work, which can avoid the adverse effects of the operation of the second electromagnet 810 in other positions on other devices. In addition, when the connecting block 801 moves away from the gate, the corresponding second electromagnet 810 is powered off, which will not affect the connection block 801 away from the gate, thereby ensuring stability and smoothness during the movement.

[0040] Embodiment 5: A method for using a walking device for a gate derusting machine elevator comprises the following steps during the lifting process of the elevator: S1, using the probe 7 to detect whether there is a protrusion on the route, and record the distance L close to the protrusion, the protrusion height H and the protrusion length M; S2. Record the rotation angle α of the first roller 305 through the rotation angle sensor 303 n , where n represents the nth second; S3, calculating the moving distance S of the first roller 305 according to the rotation angle, the diameter D of the first roller 305 and the thickness d of the crawler track; ; Wherein α0 represents the angle recorded by the rotation angle sensor 303 when L is detected; S4, when the moving distance of the first roller 305 is close to L, the first roller 305 is driven to move H by the first electric push rod 306; S5, after the first roller 305 continues to move M along the gate, the first electric push rod 306 is reset to drive the first roller 305 to reset and continue the normal walking movement; S6. The first roller 305 continues to rotate with the lifting of the fixing frame 2; the running device is kept running and is prepared to deal with the next protrusion or obstacle that may appear.

[0041] In the preferred solution, the crawler 5 always moves close to the gate, and the crawler 5 is adsorbed on the gate by magnets, thereby ensuring stability and adhesion during the walking process.

[0042] Each first roller 305 calculates L independently, and can make precise adjustments according to the roller conditions at different positions to adapt to the complex conditions of the gate surface; After the lift 101 stops moving, the following steps are included: S71, the first motor 603 is started, driving the threaded rod 604 to rotate; S72, the movable seat 601 moves toward the gate; S73, the first electromagnet 602 touches the gate, and the first motor 603 stops moving; S74, the first electromagnet 602 is started to tightly absorb the gate, so as to achieve stable fixation of the elevator 101 after it stops, prevent the elevator from shaking or moving due to external forces, and ensure the safety and stability of subsequent operations.

[0043] Through the above method, the stability of the elevator 101 during lifting can be improved, so as to facilitate the rust removal work on the gate.

[0044] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A walking device for a gate descaling machine elevator, comprising an elevator (101) and an elevator drive frame (102), characterized in that: The lift (101) is connected to a fixed frame (2), and a first wheel set (3) and a second wheel set (4) are provided on both sides of the fixed frame (2); The first wheel set (3) and the second wheel set (4) on the same side are connected by a crawler belt (5); The fixing frame (2) is connected to the lift (101) via a connecting plate (201).

2. A walking device for a gate derusting machine elevator according to claim 1, characterized in that: The fixed frame (2) is provided with a probe (7); the probe (7) is used to detect the travel path of the crawler (5); A threaded column (203) and a plurality of guide rods (202) are provided on one side of the connection plate (201) close to the elevator (101), and the threaded column (203) and the guide rods (202) slide through the elevator (101); A worm gear (206) is rotatably disposed inside the elevator (101), and the worm gear (206) is threadedly connected to the outside of the threaded column (203); The elevator (101) is provided with a second motor (603), and the output shaft of the second motor (603) is provided with a worm (205), and the worm (205) is meshed with a worm wheel (206).

3. The walking device for the gate derusting machine elevator according to claim 1 is characterized in that: The first wheel group (3) comprises a plurality of first rollers (305); a first movable groove (301) is provided in the fixing frame (2); and a shaft sleeve (302) is provided in the first movable groove (301); The first roller (305) is provided with a first rotating shaft (304), and the first rotating shaft (304) is connected to the shaft sleeve (302); The first rotating shaft (304) is provided with a rotation angle sensor (303); A first electric push rod (405) is arranged inside the fixing frame (2), and an output end of the first electric push rod (405) is connected to the shaft sleeve (302).

4. A walking device for a gate derusting machine elevator according to claim 3, characterized in that: The second wheel group (4) comprises a plurality of second rollers (404); a second movable groove (401) is provided in the fixing frame (2); and a movable sleeve (402) is provided in the second movable groove (401); The second roller (404) is provided with a second rotating shaft (403), and the second rotating shaft (403) is connected to the movable sleeve (402); A second electric push rod (405) is provided in the fixed frame (2), and an output end of the second electric push rod (405) is connected to the movable sleeve (402); A plurality of tooth grooves are provided on the inner side of the crawler belt (5), and tooth blocks matching the tooth grooves are provided on the circumferential surfaces of the first roller (305) and the second roller (404).

5. A walking device for a gate descaling machine elevator according to any one of claims 1 to 4, characterized in that: A plurality of magnetic blocks (501) are provided on the surface of the crawler belt (5), and the magnetic blocks (501) are arranged at even intervals.

6. A walking device for a gate derusting machine elevator according to claim 5, characterized in that: A stabilizing mechanism (6) is also provided in the fixing frame (2) for fixing the lift (101) after it stops. The stabilizing mechanism (6) comprises a movable seat (601) slidably connected to the interior of the fixing frame (2), and a first electromagnet (602) is provided on a side of the movable seat (601) away from the elevator (1); A first motor (603) is provided in the fixing frame (2); an output shaft of the first motor (603) is provided with a threaded rod (604); the threaded rod (604) extends into the interior of the movable seat (601); and the threaded rod (604) is threadedly connected to the movable seat (601).

7. The walking device for the gate derusting machine elevator according to claim 4 is characterized in that: A stabilizing mechanism (8) is provided inside the fixing frame (2), and the stabilizing mechanism (8) is used to maintain the stability of the movement of the fixing frame (2); The stabilizing mechanism (8) comprises a plurality of connecting blocks (801) arranged on the inner wall of the crawler track (5), and a second electromagnet (810) is arranged in the connecting block (801); The circumferential surfaces of the first roller (305) and the second roller (404) are provided with movable grooves (802), and the width of the movable grooves (802) is greater than the diameter of the connecting block (801).

8. A walking device for a gate derusting machine elevator according to claim 7, characterized in that: The first roller (305) is composed of two roller pieces, and a movable groove (802) is formed between the two roller pieces; The first rotating shaft (304) is provided with a connecting sleeve (803) for external rotation, the connecting sleeve (803) is provided with a fixing rod (804), the fixing rod (804) is provided with a plurality of connecting rods (805), and the fixing rod (804) is provided with a fixing sleeve (806) via the connecting rod (805); A connecting groove (807) is provided on one side of the fixing sleeve (806) close to the crawler belt (5), and when the crawler belt (5) rotates, the connecting block (801) can be driven to pass through the connecting groove (807); The inner wall of the connection groove (807) is provided with a first electrical connection piece (808), and the connection block (801) is provided with a second electrical connection piece (809); when the connection block (801) is located in the connection groove (807), the first electrical connection piece (808) and the second electrical connection piece (809) are electrically connected; The fixing rod (804) and the connecting rod (805) are provided with wire holes (811); The first power connection plate (808) is connected to an external power source via a connecting line (812), and the second power connection plate (809) and the second electromagnet (810) are connected to an external power source via a connecting line (812).

9. A method for using a walking device for a gate derusting machine elevator, characterized in that: The process of lifting the elevator includes the following steps: S1, using a probe (7) to detect whether there is a protrusion on the route, and recording the distance L to the protrusion, the protrusion height H and the protrusion length M; S2, recording the rotation angle of the first roller (305) via the rotation angle sensor (303); S3, calculating the moving distance of the first roller (305) according to the rotation angle, the diameter of the first roller (305) and the thickness of the track; S4, when the moving distance of the first roller (305) approaches L, the first roller (305) is driven to move H via the first electric push rod (306); S5, after the first roller (305) continues to move M along the gate, the first electric push rod (306) is reset to drive the first roller (305) to reset; S6. The first roller (305) continues to rotate along with the lifting and lowering of the fixing frame (2).

10. The method for using the walking device for the gate derusting machine elevator according to claim 9, characterized in that: The crawler (5) always moves close to the gate, and the crawler (5) is attached to the gate by magnets; Each first roller (305) independently calculates L; After the lift (101) stops moving, the following steps are included: S71, the first motor (603) is started to drive the threaded rod (604) to rotate; S72, the movable seat (601) moves toward the gate; S73, the first electromagnet (602) touches the gate, and the first motor (603) stops moving; S74, the first electromagnet (602) is activated to tightly attract the gate.

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