Rigid contact network insulator cleaning device

Abstract

The utility model belongs to the technical field of subway maintenance, operation and maintenance, and particularly relates to a cleaning device for a main line rigid contact network insulator. According to the rigid contact network insulator cleaning device, a main body is composed of a connecting plate and a main body protection shell, and a suspension mechanism is installed on the main body; two guide wheels of the suspension mechanism are mounted in front of and behind the main body protection shell, and four positioning wheels are mounted on the main body protection shell through telescopic buckles; the cleaning mechanism is in power drive connection with a motor, the motor is in drive connection with a mechanical arm, a cleaning brush is installed on the mechanical arm and driven by the power drive motor, and a slideway compensation mechanism is installed on the main body protection shell below the mechanical arm. The telescopic buckle structure of the positioning wheel is ingenious in design, the telescopic buckle is fixed on a busbar groove channel to ensure that the device does not fall off during operation, and the guide wheel is directly attached to the busbar groove to ensure that the device does not deviate from the busbar in the operation process. When the device moves to the insulator, the mechanical arm is automatically opened and closed under the compensation action of the spring to avoid overlarge pressure of the motor, and the cleaning brush cleans the insulator from four directions to complete the cleaning work.

Description

Technical Field

[0001] This utility model belongs to the field of subway maintenance and operation technology, specifically relating to a cleaning device for insulators of rigid contact wires on main lines. Background Technology

[0002] Contact line insulators play a crucial role in separating live and non-live conductors. However, due to the unique environment inside tunnels, dust and other contaminants easily accumulate on the insulator surface, causing a decline in insulation performance. If cleaning is not timely or thorough, it can lead to safety hazards such as insulator flashover, directly threatening power supply safety. At the same time, keeping the insulator surface clean also helps extend its service life and reduce operation and maintenance costs.

[0003] According to research, the current industry practice for cleaning overhead contact line insulators involves maintenance personnel manually cleaning them with cloths. When cleaning rigid overhead contact line insulators, personnel must stand on a ladder truck platform, frequently crouching to avoid equipment overhead in tunnels. If communication between platform personnel and those pushing the ladder truck is not timely, it can easily lead to collisions with equipment and personal injury, posing a safety hazard. Furthermore, to ensure the quality of insulator cleaning, cleaning tools such as cloths must be replaced promptly when soiled or washed with water on-site before reuse, resulting in low utilization of construction plans and high consumption of cleaning consumables such as cloths.

[0004] Currently disclosed electric cleaning devices, such as Chinese patent CN116689361A, have a lithium battery installed on the front bottom of the suspension body to provide power to the receiving module and the cleaning motor, while the receiving module is installed on the rear bottom of the suspension body. This rotary cleaning device for subway rigid contact network insulators uses four auxiliary top rubber wheels that sequentially press against the bottom rail. With the cooperation of the auxiliary top rubber wheels and the active rubber wheels, the front end of the cleaning device slides onto the rigid contact network. With the cooperation of the second auxiliary support plate and the auxiliary rolling rubber wheels, the rear end of the cleaning device slides onto the rigid contact network, thus completing the overall assembly of the cleaning device on the rigid contact network. Finally, a remote control module controls the drive rubber wheels to move the cleaning device back and forth on the rigid contact network, while simultaneously performing a vertical rotational self-cleaning of the insulators.

[0005] The CN216095080U device body has suspension wheel structures on both sides above for suspending the device body on the busbar. Each side of the device body has a rotating shaft. The upper end of each rotating shaft is equipped with a brush, and the lower end is connected to a first drive motor installed on the lower side of the device body via a transmission belt. A second drive motor, a transmission mechanism, and a traveling wheel are installed on the lower inner side of the device body. The second drive motor drives the traveling wheel to run along the lower end of the busbar through the transmission mechanism. Utility Model Content

[0006] The purpose of this invention is to solve the problems of complex structure and unstable movement of existing cleaning devices, and to provide an automatic cleaning device for rigid insulators. Compared with manual maintenance, it eliminates the need for personnel to frequently get up, can be installed and used by a single maintenance worker, and does not require frequent replacement of cleaning consumables. Compared with the disclosed electric maintenance method, it has a simple structure, eliminates safety hazards in maintenance operations, shortens operation time, and significantly improves operation efficiency.

[0007] The technical solution adopted by this utility model to solve the above problems is: a rigid contact wire insulator cleaning device, comprising a main body, a suspension mechanism, and a cleaning mechanism.

[0008] The main body consists of a connecting plate and a main protective shell, and a suspension mechanism is installed on the main body;

[0009] The suspension mechanism includes positioning wheels and guide wheels. Two guide wheels are installed at the front and rear of the main protective shell. Four positioning wheels are installed on the main protective shell through telescopic buckles. The telescopic buckle includes a sleeve, a rotating shaft, and a spring. The rotating shaft is fitted with a spring and a guide sleeve from the inside out. The guide sleeve has a positioning groove. The rotating shaft has a positioning pin. The positioning pin is placed in the guide groove and can slide in the guide groove. One end of the rotating shaft is fixedly connected to the positioning wheel, and the other end is fixed with a rotary button.

[0010] The cleaning mechanism includes a brush, a motor, and a power supply. The power supply drives the motor, which in turn drives the robotic arm. One end of the robotic arm is rotatably mounted on the main protective shell via a rotating shaft. A cleaning brush is mounted on the movable end of the robotic arm, and the cleaning brush is driven by the motor driven by the power supply. A slide compensation mechanism is mounted on the main protective shell below the robotic arm. The slide compensation mechanism consists of a compensation spring and a slide. The spring is installed in the groove of the slide. One side of the spring is mounted on the inner connecting plate, and the other end is connected to the outer side of the robotic arm. The robotic arm automatically opens and closes under the compensation action of the spring.

[0011] Furthermore, in the cleaning mechanism, the motor output shaft is connected to an electric wrench adapter head via gears, and a brush is installed on the electric wrench adapter head.

[0012] Furthermore, the power source is an external independent battery, which is connected to the power interface via a power connection cable, and the battery drives the connected motor.

[0013] Furthermore, the cleaning mechanism also includes a remote control, which has a receiving module and a transmitting module, and is signal-connected to the motor control module, which is signal-connected to the motor start / stop switch.

[0014] Furthermore, the two guide wheels are installed at the front and rear of the main protective shell through fixing sleeves.

[0015] Furthermore, the positioning groove adopts an approximately S-shaped groove or an M-shaped groove.

[0016] Compared to traditional manual cleaning, this invention addresses the challenges of cleaning rigid insulators on main lines. Previously, personnel had to frequently stand inside a ladder cart and repeatedly fasten their safety belts. Proper coordination between the cart pusher and the cleaning staff was crucial for efficiency, and improper coordination could lead to injuries such as collisions with equipment. Furthermore, dirty cleaning cloths required frequent washing and replacement to maintain cleaning effectiveness. Currently, the Shenyang Metro lines 1-10 have over 70,000 rigid contact wire insulators, requiring over 500 cleaning projects annually and consuming approximately 1.5 tons of cleaning supplies each year, resulting in significant costs. Using this rigid cleaning device, only about 200 cleaning projects are needed. The cleaning brushes are cheaper and more durable than cloths, eliminating the need for frequent replacements and saving substantial cleaning supplies while reducing environmental pollution.

[0017] The positioning wheel telescopic buckle structure of this utility model is ingeniously designed. Pulling and rotating the rotating shaft causes the positioning pin to slide in the positioning groove, driving the quick assembly and disassembly of the positioning wheel and the busbar. The telescopic buckle is fixed to the busbar groove to ensure that the device does not fall off during operation. The guide wheel is directly fitted into the busbar groove to ensure that the device does not deviate from the busbar during operation.

[0018] The robotic arm and slide compensation mechanism of this utility model allow the robotic arm to automatically open and close under the spring compensation when the device reaches the insulator, thus avoiding excessive motor pressure. The cleaning brush can then clean the insulator from four directions to complete the cleaning work. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model (partial perspective).

[0020] Figure 2 This is a side view (partial perspective) of this utility model.

[0021] Figure 3 This is a top view of the present invention.

[0022] Figure 4 This is a schematic diagram of the slide compensation mechanism of this utility model.

[0023] Figure 5 This is a schematic diagram of the telescopic buckle structure of this utility model (in the loading and unloading state).

[0024] Figure 6 This is a schematic diagram of the telescopic buckle structure of this utility model (in the suspended state).

[0025] In the diagram: 1: Anti-loosening nut, 2: Guide wheel fixing sleeve, 3: Intermediate connecting rod, 4: Brush, 5: Robotic arm, 6: Gear inspection cover, 7: Slide compensation mechanism, 71: Compensation spring, 72: Slide, 8: Internal power cord, 9: Motor control module, 10: Telescopic buckle, 101: Guide sleeve, 102: Rotary shaft, 103: Spring, 104: Positioning slide, 105: Positioning pin, 106: Fixed seat, 107: Rotary button, 11: Motor dust cover, 12: Rotating shaft, 13: Gear, 14: Motor, 15: Main body protective shell, 16: Connecting plate, 17: Power interface, 18: Positioning wheel, 19: Guide wheel, 20: Electric wrench adapter, 21: Remote control, 22: Power supply, 23: Power connection cable. Detailed Implementation

[0026] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings, but the present invention is not limited to the specific embodiments.

[0027] like Figure 1-3 The rigid contact wire insulator cleaning device shown includes a main body, a suspension mechanism and a cleaning mechanism. The main body has a symmetrical structure and is composed of a connecting plate 16 and a main body protective shell 15. The two symmetrical connecting plates are connected by a middle connecting rod 3 and fixed by a lock nut 1. A suspension mechanism is installed on the main body.

[0028] The suspension mechanism includes positioning wheels 18 and guide wheels 19. Two guide wheels 19 are installed in front of and behind the main protective shell through guide wheel fixing sleeves 2. Four positioning wheels 18 are installed on the main protective shell through telescopic buckles 10. The positioning wheels can be quickly disassembled and assembled with the busbar, and are fixed to the busbar channel through telescopic buckles to ensure that the device does not fall off during operation. The guide wheels are directly fitted into the busbar groove to ensure that the device does not deviate from the busbar during operation.

[0029] The cleaning mechanism ( Figure 1 and Figure 2 (From a perspective view) The robot arm includes a brush 4, a motor 14, and a power supply 22. The power supply 22 uses an external independent battery, such as a lithium battery, which is connected to the power interface 17 via a power connection cable 23. The battery drives the motor, which is a DC motor. The motor output shaft is connected to an electric wrench adapter 20 via a gear 13. One end of the robot arm is rotatably mounted on the main protective shell via a rotating shaft 12. The brush 4 is mounted on the movable end via the electric wrench adapter, and the cleaning brush is rotated by the motor driven by the power supply. A slide compensation mechanism 7 is installed on the main protective shell below the robot arm. Figure 4The slide compensation mechanism shown consists of a compensation spring 71 and a slide 72. The compensation spring is installed in the groove of the slide. One end of the compensation spring is mounted on the inner connecting plate, and the other end is connected to the outer side of the robotic arm. Under the compensation action of the compensation spring, the robotic arm 5 automatically opens and closes when the device reaches the insulator to avoid excessive motor pressure.

[0030] like Figure 5 and 6 As shown, the telescopic buckle 10 includes a guide sleeve 101, a rotating shaft 102, and a spring 103. The rotating shaft 102 is fitted with the spring 103 and the guide sleeve 101 from the inside out. The guide sleeve has a positioning groove 104, and the rotating shaft has a positioning pin 105. The positioning pin is placed in the guide groove and can slide in the guide groove. The positioning groove can be an approximately S-shaped groove or an M-shaped groove, etc., as long as it meets the telescopic stroke requirements. The guide sleeve 101 is mounted on the connecting plate 16 through a fixing seat 106. One end of the rotating shaft 102 passes through the fixing seat and the connecting plate and is fixedly connected to the positioning wheel 18. The other end of the rotating shaft is fixed with a rotating button 107. The two ends of the spring abut against the rotating button and the positioning pin, respectively.

[0031] like Figure 2 As shown, automatic control can be achieved. The cleaning mechanism remote controller 21 has a receiving module and a transmitting module, which are connected to the motor control module 9. The motor control module 9 is connected to the start / stop switch of the motor 14.

[0032] To prevent dust from affecting the device during cleaning, the motor is installed inside the motor dust cover 11. The motor output shaft, rotating shaft, and gears are all installed inside the robotic arm, and an electric wrench adapter is installed outside the robotic arm. Figure 1 and Figure 2 (In the middle perspective view), the mechanical arm corresponding to the gear has a gear inspection cover 6, which can be opened for easy maintenance; while the internal power cable 8 is installed inside the main body protective shell 15.

[0033] When using this utility model device: the start switch is located on the battery and remote control. To use, install the cleaning brush inside the adapter head, pull and rotate the rotating shaft, and the positioning pin slides in the positioning groove. Install the cleaning device onto the busbar and secure it to the busbar channel using telescopic buckles to ensure the device does not fall off during operation. Then, have someone in the pusher trolley pull it in place. Connect the lithium battery to the cleaning device via wires. After checking all parts, press the battery start button, then press the remote control switch and push the trolley to start operation. When the pusher trolley and cleaning device reach the insulator, pause for 5-8 seconds. Under the compensation of the compensating spring, the robotic arm automatically engages and disengages when the device reaches the insulator to avoid excessive motor pressure. The cleaning brush thoroughly cleans the insulator from four directions.

[0034] Tests have shown that the device can automatically clean insulators, removing surface dust and dirt without damaging them. The device does not jam during operation, and tests using an insulation resistance meter show no impact on the performance of the insulators before and after cleaning.

Claims

1. A rigid catenary insulator cleaning device, comprising a main body, a suspension mechanism and a cleaning mechanism, characterized in that, The main body consists of a connecting plate and a main protective shell, and a suspension mechanism is installed on the main body; The suspension mechanism includes positioning wheels and guide wheels. Two guide wheels are installed at the front and rear of the main protective shell. Four positioning wheels are installed on the main protective shell through telescopic buckles. The telescopic buckle includes a sleeve, a rotating shaft, and a spring. The rotating shaft is fitted with a spring and a guide sleeve from the inside out. The guide sleeve has a positioning groove. The rotating shaft has a positioning pin. The positioning pin is placed in the guide groove and can slide in the guide groove. One end of the rotating shaft is fixedly connected to the positioning wheel, and the other end is fixed with a rotary button. The cleaning mechanism includes a brush, a motor, and a power supply. The power supply drives the motor, which in turn drives the robotic arm. One end of the robotic arm is rotatably mounted on the main protective shell via a rotating shaft. A cleaning brush is mounted on the movable end of the robotic arm, and the cleaning brush is driven by the motor driven by the power supply. A slide compensation mechanism is mounted on the main protective shell below the robotic arm. The slide compensation mechanism consists of a compensation spring and a slide. The spring is installed in the groove of the slide. One side of the spring is mounted on the inner connecting plate, and the other end is connected to the outer side of the robotic arm. The robotic arm automatically opens and closes under the compensation action of the spring.

2. The rigid catenary insulator cleaning device according to claim 1, characterized in that The cleaning mechanism has a motor output shaft connected to an electric wrench adapter via gears, and a brush is installed on the electric wrench adapter.

3. The rigid catenary insulator cleaning device of claim 1, wherein, The power source uses an external independent battery, which is connected to the power interface via a power connection cable. The battery drives the connected motor.

4. The rigid catenary insulator cleaning device of claim 1, wherein, The cleaning mechanism also includes a remote control, which has a receiving module and a transmitting module, and is connected to the motor control module via signal connection. The motor control module is also connected to the motor start / stop switch via signal connection.

5. The rigid catenary insulator cleaning device of claim 1, wherein, The two guide wheels are installed at the front and rear of the main protective shell through fixed sleeves.

6. The rigid catenary insulator cleaning device of claim 1, wherein, The positioning groove adopts an approximately S-shaped groove or an M-shaped groove.

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