Outdoor operation pole falling prevention traction control system and traction device

Abstract

The invention discloses an outdoor operation pole falling prevention traction control system and a traction device, and belongs to the technical field of high-voltage transmission line installation and maintenance. The system comprises a sensing layer which is provided with a tension sensor and is used for monitoring the traction force of a traction steel cable in real time; the control layer is provided with a PLC (Programmable Logic Controller) processor and is used for collecting the traction force signal monitored by the sensing layer and carrying out analysis processing and judgment on the basis of the traction force signal; the execution layer is provided with a frequency converter and a motor, and the frequency converter receives the control instruction from the PLC processor of the control layer and sends response drive to the motor based on the control instruction; the safety layer is provided with a double-channel emergency stop loop, and when a fault occurs and any channel triggers the emergency stop loop, a power supply can be automatically cut off; the device comprises a structure supporting bracket, and a transmission case, a winding roll, a torque sensor, a frequency converter and a PLC industrial control box which are arranged on the structure supporting bracket.

Description

Technical Field

[0001] This invention belongs to the field of high-voltage transmission line installation and maintenance technology, specifically relating to an outdoor operation anti-tipping pole traction control system and traction device. Background Technology

[0002] In the installation and maintenance of high-voltage transmission lines, traction force control is a crucial factor in ensuring construction safety and preventing pole collapse. Precise traction force control is essential for ensuring the safety of equipment and personnel. However, the construction of high-voltage transmission lines is often affected by the site environment, construction difficulty, and the coordination of construction personnel. Changes in these subtle factors can cause fluctuations in the existing traction system, leading to deviations in traction control. Even minor fluctuations can create safety hazards during construction operations. Currently, the following problems still exist in the control of traction force during the construction of high-voltage transmission lines: 1) Lack of real-time traction monitoring and feedback: Existing traction control systems usually rely on simple physical devices, such as mechanical pressure gauges or traditional force sensors, and cannot achieve real-time dynamic monitoring of traction. This method cannot reflect small changes in traction in a timely manner, especially during operation, when changes in traction are often rapid and unpredictable. Once the traction exceeds the safe range, the response of existing systems is often delayed, which may lead to equipment damage or personal injury. 2) The overload protection mechanism is imperfect. Traditional traction control systems mostly rely on manual operation or simple mechanical limit devices to protect the system from overload. These systems usually only have a single overload protection measure, which cannot provide timely and comprehensive protection when an overload occurs. Due to the lack of real-time monitoring and high-precision early warning mechanisms, the equipment often cannot stop in time or automatically unload when the traction force exceeds the safety threshold, thereby increasing the risk of system failure and failing to fully protect the safety of equipment and operators. 3) Poor traction adjustment flexibility: Existing traction control systems are mostly fixed mechanical systems or simple electrical controls, lacking the ability to automatically adjust traction under different loads, terrains, and weather conditions. For example, when operating in windy weather or complex terrain, existing systems cannot automatically adjust the traction force according to environmental changes, resulting in low operating efficiency, or even equipment overload or operational difficulties. The limited flexibility and response speed of traction adjustment lead to poor adaptability of the equipment in complex environments. 4) Operation is highly dependent on manual labor. Traditional traction control systems require operators to manually adjust the traction force based on experience, and usually require multiple devices to work together in coordination. This not only increases the complexity of operation, but also depends on the operator's experience and skill level, which can easily lead to human error and increase safety hazards. Especially in high-risk outdoor working environments, operators may make incorrect judgments or delay response due to a lack of necessary real-time data and system support, thus causing accidents. 5) High system reliability and maintenance costs. Many existing systems use mechanical transmission devices, such as gearboxes and manual shifting devices. These mechanical devices are susceptible to external environmental influences and are prone to wear and failure after long-term operation. In addition, these mechanical systems generate a lot of friction and noise during operation, which increases the difficulty and cost of system maintenance. The existing equipment has a relatively complex structure and a short maintenance cycle, requiring regular inspection and replacement of vulnerable parts, resulting in high maintenance costs. 6) Insufficient safety and reliability: In the existing traction control system, many systems fail to fully consider the impact of environmental factors on equipment safety and reliability; most systems respond slowly to dangerous situations such as overload, short circuit, over-temperature, and over-current, and lack sufficient redundancy design; once the system fails or the traction force exceeds the safety threshold, it often cannot quickly and effectively shut down and protect itself, resulting in equipment damage or even personal injury. 7) Low energy efficiency and poor environmental adaptability: Traditional traction control systems are mostly driven by motors and lack intelligent energy efficiency management; the operating efficiency of motors is low under different loads, and the energy consumption of electrical equipment is large; at the same time, the protection level and environmental adaptability of existing systems are insufficient, especially in environments with high humidity and large temperature differences, existing equipment is prone to short circuits, corrosion and failure, affecting the stability and service life of the equipment. Summary of the Invention

[0003] This invention provides an outdoor operation anti-tipping pole traction control system. It performs online real-time monitoring of the traction force based on the actual working environment and adjusts the traction force in real time according to the monitoring results to ensure it meets current operational safety standards. When the traction force exceeds the limit threshold, it can automatically implement over-limit warning and shutdown protection, and take emergency measures such as automatic reverse unloading. This solves the problems of inaccurate traction force control and inability to cope with complex environments and emergencies in current high-voltage transmission line operations due to the lack of real-time feedback and intelligent adjustment; and the fact that most systems rely too heavily on manual operation, resulting in low safety and reliability.

[0004] To achieve the above-mentioned technical objectives, the present invention is implemented through the following technical solution: An outdoor operation anti-tipping pole traction control system includes: The sensing layer is equipped with a tension sensor to monitor the traction force of the traction cable in real time. The control layer is equipped with a PLC processor, which is used to collect the traction force signal monitored by the sensing layer, analyze and process the traction force signal, determine whether the traction force exceeds the over-limit threshold, and generate downstream control commands based on the determination result. The execution layer includes a frequency converter and a motor. The frequency converter receives control commands from the PLC processor in the control layer and sends a response drive to the motor based on the control commands. The motor response is used to adjust its own speed and torque to adjust the traction force. The safety layer includes a dual-channel emergency stop circuit. This dual-channel emergency stop circuit is connected to the input terminal of the PLC processor via relay communication. In the event of a fault, the power supply can be automatically disconnected when any channel triggers the emergency stop circuit. The power supply layer includes an input power supply for power management and a battery backup module for uninterrupted power supply in the event of a power outage.

[0005] Preferably, the PLC processor communicates with the sensing layer, execution layer, and security layer via Modbus protocol or Ethernet.

[0006] Preferably, the PLC processor is equipped with an automatic fault detection unit and a self-test unit, which are used to automatically detect system safety parameters, including sensor zero point, VFD positioning status, and emergency stop activation status, when powered on.

[0007] Preferably, the system further includes an HMI (Human Machine Interface), which is communicatively connected to the PLC processor of the control layer; The HMI is used to interact with the sensing layer, control layer, and execution layer.

[0008] Preferably, the system further includes an electromagnetic brake and braking unit, which is communicatively connected to the output of the execution layer PLC processor. The electromagnetic brake is normally closed, used to quickly disconnect the connection between the motor and the traction device in case of system malfunction, preventing equipment damage due to overload operation. The braking unit is triggered to apply mechanical braking to the traction equipment, reducing the traction force for a short period of time.

[0009] Preferably, the system further includes a safety relay and an access control switch unit, with the traction device electrically connected to the safety relay, the safety relay communicatively connected to the PLC processor, and the access control switch communicatively connected to the PLC processor; The safety relay and access control switch unit are used to control the start and stop of the equipment during equipment maintenance or repair via the access control switch; the traction equipment can only be powered on and operated after the protective door is closed.

[0010] Preferably, the overload threshold setting includes: a warning threshold and a shutdown threshold, used for multi-level protection against overload; when the traction force exceeds the warning threshold, the execution layer activates an audible and visual alarm; when the traction force exceeds the shutdown threshold, the execution layer cuts off the power supply and activates the braking unit.

[0011] Preferably, the motor is a three-phase motor, and the phase sequence of the motor is changed by the execution layer to realize the forward and reverse rotation of the motor; it is used to reverse the motor when the traction force is overloaded, to unload the force in the opposite direction, and to restore the traction force to within the safe threshold. The PLC processor in the control layer controls the reverse speed and reverse angle of the motor to ensure timely unloading when the traction force is overloaded.

[0012] Another object of the present invention is to provide an outdoor operation anti-tipping pole traction device, comprising: The structural support bracket is composed of a channel steel frame at the bottom and a triangular bracket vertically arranged on one side of the channel steel frame. A transmission box is located in the middle of the structural support bracket; a motor is installed inside the transmission box; A cable reel is disposed between the transmission box and the triangular bracket; the cable reel is wound and houses the traction steel cable; The first end of the winding reel is rotatably mounted on the triangular bracket via a shaft, and the second end is mounted on the rotor of the motor. A torque sensor is mounted on a shaft at the first end of the winding reel; The frequency converter is mounted on the structural support bracket and is electrically connected to the motor; The PLC industrial control box has a built-in PLC processor; the upper surface of the PLC industrial control box is equipped with an HMI and an emergency stop button.

[0013] Preferably, a motor cover is provided near the rear side of the structural support bracket, and the motor is located inside the motor cover.

[0014] Preferably, winch fixing lugs are symmetrically arranged on both sides of the structural support bracket; lifting lugs are arranged above the transmission box.

[0015] Beneficial effects This invention provides an outdoor operation anti-tipping pole traction control system and traction device, which introduces PLC closed-loop control technology, combined with frequency converter speed regulation and motor torque control, enabling the system to automatically adjust the traction force according to real-time traction force data; especially under complex terrain or harsh weather conditions, the system can automatically adjust the traction force according to environmental changes and load changes, ensuring that the system can always operate stably; greatly improving the system's flexibility and adaptability, especially suitable for crossing complex terrain or environments with large wind speed changes; Multiple safety protection mechanisms have been designed, including overload warning, automatic shutdown, reverse unloading, and emergency shutdown circuit functions, to ensure that the system can respond quickly when encountering overload or sudden failure and execute automatic shutdown or reverse unloading protection measures; especially in the case of overload, the system can effectively avoid equipment damage or personal injury by triggering an alarm and executing rapid shutdown or reverse unloading. The system has a self-diagnostic function, which can automatically detect the working status of the equipment during system operation, including the health status of key components such as sensors, frequency converters, and motors; once a fault or abnormality occurs, the system will issue an alarm and provide fault information. Equipped with a human-machine interface (HMI), the operator can easily set traction targets, switch work modes, view real-time data, view historical data, and export logs through an intuitive interface; this design makes operation simpler and more intuitive. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a flowchart of the outdoor operation anti-tipping pole traction control system of the present invention; Figure 2 This is a schematic diagram of the structure of the outdoor operation anti-tipping pole traction device of the present invention; In the attached diagram, the structural names represented by each number are as follows: 1-Windlock fixing lug, 2-Structural support bracket, 3-Torque sensor, 4-Wind reel, 5-Transmission box, 6-Lifting lug, 7-HMI, 8-Emergency stop button, 9-PLC industrial control box, 10-Motor guard, 11-Frequency converter. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1 An outdoor operation anti-tipping pole traction control system includes: The sensing layer consists of a tension sensor installed on the traction cable. In this embodiment, an S-type tension sensor or a pin-type tension sensor is used, with a range that can cover traction force requirements of 2t, 3t and 5t, and an accuracy of ±0.5%FS. To adapt to the complex environment of outdoor operations, the tension sensor is made of 17-4PH stainless steel, which has excellent corrosion resistance and mechanical strength, and can withstand harsh external environments. The sensor housing meets the IP67 protection rating, is waterproof and dustproof, and can adapt to various complex outdoor conditions. The signal output by the tension sensor is an analog signal, with an analog current signal range of 4~20mA and an analog voltage signal range of ±10V. It can accurately reflect changes in traction force and has an overload protection function, which can ensure safe signal output when the maximum rated load is exceeded. As a preferred implementation, the signal directly acquired by the tension sensor will attenuate during transmission and contain interference signals, which will affect the accuracy of the downstream received signal and the accuracy of the subsequent result judgment output; therefore, a signal amplifier is also set up to perform low-pass filtering on the raw signal acquired by the tension sensor to filter out high-frequency noise, then amplify the filtered signal, and finally convert the analog signal into a digital signal that can be processed by the downstream control layer through a signal converter. The control layer is equipped with a PLC processor, which has at least 24 digital inputs, 16 digital outputs, and 4 analog inputs, supports high-speed signal processing, and can be connected to external devices. The HMI (Human-Machine Interface) is set up to communicate with the PLC processor. Through this interface, traction force data can be monitored in real time, parameters can be set, operating modes can be selected, system status can be viewed, and historical data and event logs can be exported. The PLC processor analyzes historical traction force data and generates data curves. The HMI display screen also provides a real-time curve display, which intuitively presents the changes in traction force, making it convenient for operators to track the equipment's operating status in real time. The set traction force safety threshold is entered through the HMI. Within the safety threshold range, traction is in a safe state. If the safety threshold is exceeded, intervention measures need to be taken. The traction force signal collected by the tension sensor is amplified and converted before being fed into the PLC processor through the input port. The storage medium stores a computer-executable program. Based on the received real-time traction force signal, the PLC processor executes the computer-executable program to calculate the current traction force value and compare it with the set safety threshold to determine whether the current traction force value exceeds the set safety threshold. As a preferred implementation, this embodiment sets dual over-limit thresholds, namely a warning threshold and a shutdown threshold, to provide multi-level protection against over-limit situations. When the monitored real-time traction force exceeds the warning threshold, the PLC processor sends a control command to the audible and visual alarm to perform an audible warning operation. When the monitored real-time traction force exceeds the shutdown threshold, the PLC sends a control command to the motor and braking unit to perform an emergency stop operation. In a preferred embodiment, the memory is also equipped with an automatic fault detection and self-test execution program. The frequency converter and the emergency stop switch are both communicatively connected to the PLC processor. At the moment the traction equipment is powered on, the status signals of the frequency converter and the emergency stop switch, including the tension sensor, are fed into the PLC processor. The PLC processor performs self-tests on the sensor zero point, whether the frequency converter is in position, and the status of the emergency stop switch. When a fault occurs, the error is displayed through the HMI. The execution layer includes a frequency converter and a motor. The frequency converter is communicatively connected to the PLC processor, and the motor is electrically connected to the frequency converter. The frequency converter receives control commands from the PLC processor and drives the motor to respond. Based on the commands, the motor adjusts its speed, torque, and direction. Adjusting the speed and torque regulates the traction force, while changing the direction reverses the force to restore it to a safe threshold when the traction force exceeds the limit. The system supports three power configurations: 2t, 3t, and 5t. By changing the power specifications of the motor and frequency converter, the system can meet the traction requirements under different operating conditions and achieve various traction force outputs. The motor in this embodiment is a three-phase asynchronous motor with a protection level of IP55 / IP65, ensuring the stability of the system in harsh environments; the motor is equipped with an encoder to monitor the motor speed in real time and feed the data back to the PLC for closed-loop control; When the traction force exceeds the set safety threshold, the PLC sends a reverse rotation control command to the motor, causing the motor to reverse. This reverse rotation of the motor relieves the force and reduces the traction force of the traction cable to within the safety threshold range in a timely manner, thus preventing damage to the equipment caused by prolonged overload. The inverter in this embodiment supports closed-loop vector control or V / F control, which can maintain the motor's efficient operation under different load conditions, and has torque control function to effectively adjust the motor's traction output. In a preferred embodiment, the execution layer is also equipped with an electromagnetic brake and braking unit, which is connected to the PLC processor for emergency shutdown and overload protection of the system. The electromagnetic brake is normally closed and can quickly disconnect the connection between the motor and the traction equipment when the system malfunctions, preventing the equipment from being damaged under overload conditions. The braking unit applies emergency mechanical braking to the motor when the equipment is overloaded, ensuring that the traction force can be reduced in a short time to ensure the safety of the equipment and personnel. The safety layer is equipped with a dual-channel emergency stop circuit, including two emergency stop buttons. These buttons can be set on the PLC control box and an external handheld remote control device, respectively. When either device triggers the emergency stop circuit, the power supply can be cut off immediately, stopping the equipment operation. The emergency stop operation is fully implemented through a safety relay. A safety relay is installed between the PLC and the power components of the equipment. The emergency stop operation can be achieved when the safety relay is disconnected. As a preferred embodiment, to avoid misoperation during equipment operation, a dual guarantee is provided by a safety relay and an access control switch. The power component of the traction equipment is electrically connected to the safety relay, and the safety relay is communicatively connected to the PLC processor. The access control switch is also communicatively connected to the PLC processor. The PLC processor will only send a closing control command to the safety relay when the access control switch signal is closed. Only after the safety relay is closed can the traction equipment be powered on. This avoids dangerous operations when the access control is not closed. The power supply layer is equipped with generators and mains power as input power sources. The input power is protected by circuit devices such as disconnect switches, residual current devices, and circuit breakers to ensure the safety of equipment and operators, and to ensure stable power supply and avoid the impact of power fluctuations on system equipment. The internal power management module converts the input voltage to 24V DC to supply power to devices such as the PLC processor, frequency converter, and tension sensor, ensuring the normal operation of the system. The system is also equipped with a battery backup module, which can continue to supply power through the built-in lithium battery or generator in the event of a power outage, ensuring that the equipment can continue to work. As a preferred implementation, to ensure the high reliability of the system, this embodiment adopts redundant design in key components such as power supply, control unit and frequency converter, to ensure that the system can automatically switch to the backup system to continue operation when a single device fails; in addition, the system also has an emergency fault recovery mechanism, which can restore normal operation as soon as possible in the event of a fault and reduce downtime. like Figure 1 As shown, the workflow of this system in different scenarios is as follows: Manual mode: In this mode, the operator manually sets the motor's operating status via HMI or physical switch, including start, stop, forward and reverse rotation, and speed adjustment; at this time, the traction force is directly controlled by the operator. Constant tension mode: The operator sets the target tension (T_ref), which is the threshold value. The PLC collects the real-time traction force signal, compares it with the set value, and automatically adjusts the motor speed to keep the traction force near the target value. Overload protection mode: The system sets tension threshold A and tension threshold B. When the tension reaches threshold A, an audible and visual alarm is triggered; when the tension exceeds threshold B, the system immediately starts the automatic shutdown process, cuts off the power supply, and applies braking through the electromagnetic brake to ensure equipment safety. Automatic reverse unloading mode: When the tension exceeds the threshold B, the PLC triggers the reverse unloading operation; the motor automatically reverses, controlling the reverse movement of the traction equipment until the traction force is restored to below the safe value C. The unloading process is executed according to the set speed, time or angle to ensure safe unloading under overload conditions. Multi-power configuration switching: By changing the different specifications of the motor and frequency converter, the system can adjust the traction force level according to different work requirements; the equipment supports traction force requirements of different loads of 2t, 3t and 5t, and can adapt to the challenges of different working environments.

[0020] Example 2 This embodiment provides an outdoor operation anti-tipping pole traction device. The system process in Embodiment 1 is ultimately completed by mapping to the above-mentioned traction device, and the device hardware responds to complete the adjustment of the traction force. like Figure 2 As shown, the outdoor operation anti-tipping pole traction device includes: Structural support bracket 2 is composed of a channel steel frame at the bottom and a triangular bracket vertically installed on one side of the channel steel frame. The transmission box 5 is located in the middle of the structural support bracket 2, that is, in the middle of the channel steel frame; the motor is installed inside the transmission box 5. The cable reel 4 is located between the transmission box 5 and the triangular bracket; the cable reel 4 is wound and holds the traction steel cable; the first end of the cable reel 4 is rotatably mounted on the triangular bracket via a shaft, and the second end is mounted on the rotor of the motor; when the motor runs, it can drive the cable reel 4 to rotate synchronously, and the cable reel 4 adjusts the magnitude of the traction force by winding and unwinding the traction steel cable. Torque sensor 3 is installed on the shaft at the first end of the winding reel 4. Torque sensor 3 is connected to the PLC processor to monitor the torque of the winding reel 4, which indirectly reflects the torque of the motor at this time. By monitoring the motor torque, the current effect of the motor on the traction cable can be reflected, and changing the motor torque can adjust the traction force of the traction cable. The frequency converter 11 is mounted on the structural support bracket 2 and is electrically connected to the motor. The frequency converter 11 can change the speed and torque of the motor. The purpose of changing the speed and torque of the motor is to adjust the traction force. The PLC industrial control box 9 has a built-in PLC processor; the upper surface of the PLC industrial control box 9 is equipped with an HMI 7 and an emergency stop button 8; In a preferred embodiment, a motor cover 10 is provided near the rear side of the structural support bracket 2 to protect the motor; winch fixing lugs 1 are symmetrically provided on both sides of the structural support bracket 2, and lifting lugs 6 are provided above the transmission box 5 to facilitate the overall suspension of the device.

Claims

1. An outdoor operation anti-tipping pole traction control system, characterized in that, include: The sensing layer is equipped with a tension sensor to monitor the traction force of the traction cable in real time. The control layer is equipped with a PLC processor, which is used to collect the traction force signal monitored by the sensing layer, analyze and process the traction force signal, determine whether the traction force exceeds the over-limit threshold, and generate downstream control commands based on the determination result. The execution layer includes a frequency converter and a motor. The frequency converter receives control commands from the PLC processor in the control layer and sends a response drive to the motor based on the control commands. The motor response is used to adjust its own speed and torque to adjust the traction force. The safety layer includes a dual-channel emergency stop circuit. This dual-channel emergency stop circuit is connected to the input terminal of the PLC processor via relay communication. In the event of a fault, the power supply can be automatically disconnected when any channel triggers the emergency stop circuit. The power supply layer includes an input power supply for power management and a battery backup module for uninterrupted power supply in the event of a power outage.

2. The outdoor operation anti-tipping pole traction control system according to claim 1, characterized in that, The PLC processor is equipped with an automatic fault detection unit and a self-test unit, which are used to automatically detect system safety parameters, including sensor zero point, VFD positioning status, and emergency stop activation status, when powered on.

3. The outdoor operation anti-tipping pole traction control system according to claim 1, characterized in that, The system also includes an HMI, which is communicatively connected to the PLC processor of the control layer; The HMI is used to interact with the sensing layer, control layer, and execution layer.

4. The outdoor operation anti-tipping pole traction control system according to claim 1, characterized in that, The system is also equipped with an electromagnetic brake and braking unit, which is communicatively connected to the output of the execution layer PLC processor. The electromagnetic brake is configured to be normally closed, and is used to quickly disconnect the connection between the motor and the traction device when an abnormal situation occurs in the system. The braking unit is triggered to apply mechanical braking to the traction equipment, reducing the traction force for a short period of time.

5. The outdoor operation anti-tipping pole traction control system according to claim 1, characterized in that, The system is also equipped with a safety relay and an access control switch unit. The traction equipment is electrically connected to the safety relay, the safety relay is communicatively connected to the PLC processor, and the access control switch is communicatively connected to the PLC processor. The safety relay and access control switch unit is used to control the start and stop of the equipment via the access control switch during equipment maintenance or repair.

6. The outdoor operation anti-tipping pole traction control system according to claim 1, characterized in that, The overload threshold settings include: a warning threshold and a shutdown threshold, used for multi-level protection against overload; when the traction force exceeds the warning threshold, the execution layer activates an audible and visual alarm; when the traction force exceeds the shutdown threshold, the execution layer cuts off the power supply and activates the braking unit.

7. The outdoor operation anti-tipping pole traction control system according to claim 1, characterized in that, The motor is a three-phase motor. The motor can rotate in the forward and reverse directions by changing the phase sequence of the motor through the execution layer. The PLC processor in the control layer controls the reverse speed and reverse angle of the motor to ensure timely unloading when the traction force is overloaded.

8. The outdoor operation anti-tipping pole traction control system according to claim 1, characterized in that, The system is also equipped with a safety relay and an access control switch unit. The traction equipment is electrically connected to the safety relay, the safety relay is communicatively connected to the PLC processor, and the access control switch is communicatively connected to the PLC processor. The safety relay and access control switch unit are used to control the start and stop of the equipment during equipment maintenance or repair via the access control switch; the traction equipment can only be powered on and operated after the protective door is closed.

9. An outdoor operation anti-tipping pole traction device, characterized in that, include: The structural support bracket is composed of a channel steel frame at the bottom and a triangular bracket vertically arranged on one side of the channel steel frame. A transmission box is located in the middle of the structural support bracket; a motor is installed inside the transmission box; A cable reel is disposed between the transmission box and the triangular bracket; the cable reel is wound and houses the traction steel cable; The first end of the winding reel is rotatably mounted on the triangular bracket via a shaft, and the second end is mounted on the rotor of the motor. A torque sensor is mounted on a shaft at the first end of the winding reel; The frequency converter is mounted on the structural support bracket and is electrically connected to the motor; PLC industrial control box with built-in PLC processor; The upper surface of the PLC industrial control box is equipped with an HMI and an emergency stop button.

10. An outdoor operation anti-tipping pole traction device according to claim 8, characterized in that, A motor cover is provided near the rear side of the structural support bracket, and the motor is located inside the motor cover; The structural support bracket is symmetrically provided with winch fixing lugs on both sides; the transmission box is provided with lifting lugs on top.

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