Circuit electricity testing device

Abstract

The invention provides a line electricity testing device which comprises a moving vehicle, a first moving mechanism, a second moving mechanism, an electroscope and a control module. Wherein the moving vehicle is used for walking to a position close to a line; the first movement mechanism is arranged on the movement vehicle, and the first movement mechanism is used for moving in the vertical direction; the second movement mechanism is arranged at the movement end of the first movement mechanism, and the second movement mechanism is used for moving in the horizontal direction; the electroscope is arranged at the moving end of the second moving mechanism; the control module is used for controlling the first movement mechanism and the second movement mechanism to move, so that the electroscope is in contact with the line, and whether the line is electrified is judged according to an output signal of the electroscope. According to the line electricity testing device disclosed by the invention, the efficiency and the quality of electricity testing operation are effectively improved, the labor cost of the electricity testing operation is reduced, and meanwhile, relatively high operation safety is also considered.

Description

Technical Field

[0001] The present disclosure relates to the technical field of live-line verification, and particularly to a line live-line verification device. Background Art

[0002] In the rapidly developing power industry, the operation and maintenance of ultra-high voltage (such as 500 kV and above) transmission lines are becoming increasingly important and complex. The traditional manual live-line verification method relies on operators to hold a long rod live-line detector to perform operations at high altitudes, and this method has significant limitations in many aspects.

[0003] For transmission lines with heights exceeding the length of the operation rod of the traditional live-line detector, maintenance personnel have to rely on insulating ladders or aerial work devices, which not only greatly increases the operation difficulty and physical exertion, but also makes the operation process more dangerous. Especially in harsh weather conditions such as strong winds, it is difficult to ensure the stability of the operation rod, increasing the risk of accidents. Moreover, in the traditional live-line verification method, due to the weight and length of the live-line detector and the operation rod, operators are prone to fatigue and unstable center of gravity when holding the device for a long time, which is extremely likely to lead to operation errors or loss of balance. This not only affects the accuracy of the live-line verification results, but also seriously threatens the life safety of maintenance personnel. At the same time, this operation method often requires multiple people to cooperate. Especially in high-difficulty operations, special personnel are needed to assist in stabilizing the live-line detector, which not only increases the labor cost but also reduces the work efficiency.

[0004] With the continuous advancement of the construction of improved power grids and smart power plants, the power industry has higher and higher requirements for the improvement and refinement of operation and maintenance work. Therefore, it is particularly important to develop a live-line verification device in this embodiment that can improve operation efficiency and quality, reduce operation costs, and take into account safety. Summary of the Invention

[0005] The present disclosure aims to solve at least one of the technical problems in the related art to some extent.

[0006] To this end, the purpose of the present disclosure is to provide a line live-line verification device.

[0007] To achieve the above object, the present disclosure provides a line voltage detector, comprising: a moving vehicle, a first moving mechanism, a second moving mechanism, a voltage detector and a control module; wherein, the moving vehicle is used to travel to a position close to the line; the first moving mechanism is arranged on the moving vehicle, and the first moving mechanism is used to move in the vertical direction; the second moving mechanism is arranged at the moving end of the first moving mechanism, and the second moving mechanism is used to move in the horizontal direction; the voltage detector is arranged at the moving end of the second moving mechanism; the signal output end of the control module is respectively connected to the signal input ends of the first moving mechanism and the second moving mechanism, and the signal input end of the control module is connected to the signal output end of the voltage detector, and the control module is used to control the movement of the first moving mechanism and the second moving mechanism, so that the voltage detector contacts the line, and judge whether the line is energized according to the output signal of the voltage detector.

[0008] Optionally, the moving vehicle includes: a vehicle body, an engine and two sets of traveling mechanisms; wherein, the first moving mechanism is arranged on the vehicle body, and the engine is arranged inside the vehicle body, and the two sets of traveling mechanisms are respectively arranged on both sides of the vehicle body, and the power output end of the engine is in transmission connection with the power input end of the traveling mechanism, and the engine is used to drive the two sets of traveling mechanisms to travel respectively, so that the vehicle body travels along a preset route to a position close to the line.

[0009] Optionally, the traveling mechanism includes: a wheel, a variable motor, a variable pump and a first control module; wherein, the wheel is rotatably arranged on the side of the vehicle body; the variable motor is arranged inside the vehicle body, and the power output end of the variable motor is in transmission connection with the power input end of the wheel; the variable pump is arranged inside the vehicle body, and the liquid outlet end of the variable pump is connected to the liquid inlet end of the variable motor; the control end of the first control module is arranged on the vehicle body, and the valve control end of the first control module is arranged between the liquid outlet end of the variable pump and the liquid inlet end of the variable motor, and the first control module is used to control the swing angle direction and flow rate of the variable pump, so that the variable motor drives the wheel to travel in a preset direction and at a first preset speed.

[0010] Optionally, the traveling mechanism further includes: a brake and a second control module; wherein, the brake is arranged inside the vehicle body, and the braking end of the brake is in transmission connection with the power output end of the variable motor; the control end of the second control module is arranged on the vehicle body, and the valve control end of the second control module is arranged at the liquid inlet end of the brake, and the second control module is used to control the flow rate of the brake, so that the brake drives the variable motor to brake at a second preset speed.

[0011] Optionally, the moving vehicle further includes: a plurality of support legs, which are threadedly disposed at the bottom of the vehicle body, and the support legs are used to support the vehicle body when the vehicle body walks along a preset route to the line.

[0012] Optionally, the first motion mechanism includes: a chassis, a platform, a scissor arm, a hydraulic cylinder, and a hydraulic drive system; wherein, the chassis is disposed on the moving vehicle, and the second motion mechanism is disposed on the platform, the scissor arm is disposed between the chassis and the platform, and the power output end of the hydraulic cylinder is in transmission connection with the power input end of the scissor arm; the signal input end of the hydraulic drive system is connected to the signal output end of the control module, and the liquid outlet end of the hydraulic drive system is connected to the liquid inlet end of the hydraulic cylinder, and the control system is used to control the hydraulic oil of the hydraulic drive system to drive the hydraulic cylinder to extend and retract and drive the scissor arm to lift.

[0013] Optionally, the hydraulic drive system includes: a gear pump and a reversing valve; wherein, the liquid inlet end of the gear pump is connected to the liquid outlet end of the fuel tank, and the liquid inlet end of the reversing valve is connected to the liquid outlet end of the gear pump, the liquid outlet end of the reversing valve is connected to the liquid inlet end of the fuel tank, the first liquid changing end of the reversing valve is connected to the rodless cavity of the hydraulic cylinder, and the second liquid changing end of the reversing valve is connected to the rod chamber of the hydraulic cylinder; the liquid inlet end and the first liquid changing end of the reversing valve are conducted, and the liquid outlet end and the second liquid changing end of the reversing valve are conducted; or, the liquid inlet end and the second liquid changing end of the reversing valve are conducted, and the liquid outlet end and the first liquid changing end of the reversing valve are conducted.

[0014] Optionally, the hydraulic drive system further includes: a hydraulic lock, and the hydraulic lock is disposed between the first liquid changing end of the reversing valve and the rodless cavity of the hydraulic cylinder and between the second liquid changing end of the reversing valve and the rod chamber of the hydraulic cylinder.

[0015] Optionally, the second motion mechanism includes: a first linear motion unit, which is disposed at the moving end of the first motion mechanism, and the second motion mechanism is used to move along a first direction in the horizontal direction; a second linear motion unit, which is disposed at the moving end of the first linear motion unit, and the electroscope is disposed at the moving end of the second linear motion unit, and the second linear motion unit is used to move along a second direction in the horizontal direction; wherein, the first direction and the second direction form a preset angle; the signal output end of the control module is respectively connected to the signal input end of the first linear motion unit and the signal input end of the linear motion unit, and the control module is used to control the first linear motion unit and the second linear motion unit to move so that the electroscope moves along the horizontal direction.

[0016] Optionally, the device further includes: an insulating telescopic rod, which is disposed at the moving end of the second moving mechanism, and the electroscope is disposed at the telescopic end of the insulating telescopic rod.

[0017] The technical solution provided by the present disclosure may include the following beneficial effects:

[0018] Based on the control of the control module and the cooperation of the moving vehicle, the first moving mechanism, and the second moving mechanism, the position of the electroscope can be flexibly adjusted, thereby ensuring stable contact between the electroscope and the line while avoiding manual operation, effectively improving the efficiency and quality of the line inspection operation, reducing the labor cost of the line inspection operation, and also taking into account high operation safety, meeting the operation requirements.

[0019] The additional aspects and advantages of the present disclosure will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present disclosure will become obvious and easy to understand from the following description of the embodiments in conjunction with the drawings, where:

[0021] Figure 1 is a schematic structural diagram (contracted state) of a line inspection device according to an embodiment of the present disclosure;

[0022] Figure 2 is a schematic structural diagram (deployed state) of a line inspection device according to an embodiment of the present disclosure;

[0023] Figure 3 is a schematic oil circuit diagram of a line inspection device according to an embodiment of the present disclosure;

[0024] Figure 4 is a schematic structural diagram of the second moving mechanism in a line inspection device according to an embodiment of the present disclosure;

[0025] As shown in the figure: 1. Moving vehicle, 11. Vehicle body, 12. Wheels, 13. Variable motor, 14. Variable pump, 15. First control module, 16. Brake, 17. Second control module;

[0026] 2. First moving mechanism, 21. Chassis, 22. Platform, 23. Scissor arm, 24. Hydraulic cylinder, 25. Gear pump, 26. Directional control valve, 27. Hydraulic lock;

[0027] 3. Second moving mechanism, 31. First linear motion unit, 32. Second linear motion unit;

[0028] 4. Insulating telescopic rod, 5. Electroscope. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Embodiments of the present disclosure will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present disclosure, and should not be construed as a limitation of the present disclosure. On the contrary, the embodiments of the present disclosure include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0030] As Figure 1 and Figure 2 shown, an embodiment of the present disclosure provides a line voltage detection device, including: a moving vehicle 1, a first moving mechanism 2, a second moving mechanism 3, a voltage detector 5, and a control module (not shown in the figure). Among them, the moving vehicle 1 is used to travel to a position close to the line. The first moving mechanism 2 is arranged on the moving vehicle 1, and the first moving mechanism 2 is used to move in the vertical direction. The second moving mechanism 3 is arranged at the moving end of the first moving mechanism 2, and the second moving mechanism 3 is used to move in the horizontal direction. The voltage detector 5 is arranged at the moving end of the second moving mechanism 3. The signal output end of the control module is respectively connected to the signal input ends of the first moving mechanism 2 and the second moving mechanism 3, and the signal input end of the control module is connected to the signal output end of the voltage detector 5. The control module is used to control the movement of the first moving mechanism 2 and the second moving mechanism 3 so that the voltage detector 5 contacts the line, and determines whether the line is energized according to the output signal of the voltage detector 5.

[0031] It can be understood that since the first moving mechanism 2 is arranged on the moving vehicle 1, the second moving mechanism 3 is arranged at the moving end of the first moving mechanism 2, and the voltage detector 5 is arranged at the moving end of the second moving mechanism 3, the voltage detector 5 can be moved to a position close to the line by using the moving vehicle 1, and can also use the movement of the first moving mechanism 2 in the vertical direction and the movement of the second moving mechanism 3 in the horizontal direction to achieve stable contact with the line.

[0032] Thus, based on the control of the control module and the cooperation of the moving vehicle 1, the first moving mechanism 2, and the second moving mechanism 3, the position of the voltage detector 5 can be flexibly adjusted, thereby avoiding manual operation while ensuring stable contact between the voltage detector 5 and the line, effectively improving the efficiency and quality of the voltage detection operation, reducing the labor cost of the voltage detection operation, and also taking into account high operation safety, meeting the operation requirements.

[0033] It should be noted that the research and application of the voltage detection device in this embodiment have far-reaching significance for power operation and maintenance work and even the entire power industry.

[0034] From the perspective of safety, the live-line voltage detector of this embodiment realizes the lifting and movement of the live-line detector 5 through automatic control, completely eliminating the safety hazards of manual operation of the live-line detector 5 at high altitudes. This not only greatly reduces the risk of electric shock but also decreases the possibility of accidents caused by operational errors or fatigue, providing strong protection for the safety of operation and maintenance personnel.

[0035] From the perspective of efficiency improvement, the live-line voltage detector of this embodiment can automatically adjust the position of the live-line detector 5 according to the line height, eliminating the need for operators to frequently adjust the operating rod or climbing ladder. This not only saves operation time but also reduces the physical burden on operation and maintenance personnel, significantly improving the efficiency of live-line voltage detection operations. At the same time, the design of the device focuses on convenient operation, enabling a single operator to complete the live-line voltage detection task, further reducing labor costs.

[0036] In addition, the research, development, and application of the live-line voltage detector of this embodiment also enhance the flexibility of operations. The device is mobile and stable, capable of adapting to the operation requirements under different terrains and climatic conditions. This enables operation and maintenance work to be no longer restricted by specific times and locations, improving the flexibility and adaptability of work.

[0037] From the perspective of industry development, as an important part of the construction of smart power plants, the research, development, and application of the live-line voltage detector of this embodiment will promote the improvement and refinement of power operation and maintenance work. This not only helps to improve the overall level of power operation and maintenance work but also contributes to the construction of a safe, efficient, and green improved power grid, promoting the sustainable development of the power industry.

[0038] The live-line detector 5 is used to contact the line and detect whether the line is energized. When the line is energized, the live-line detector 5 outputs a signal; when the line is de-energized, the live-line detector 5 does not output a signal. The specific type of the live-line detector 5 can be set according to actual needs, and no limitation is imposed thereon.

[0039] Among them, a high-voltage audible and visual live-line detector 5 can be selected, and the considerations are as follows:

[0040] 1) Independence and anti-interference: Ensure that the live-line detector 5 is independent of parts such as the moving vehicle 1, the first moving mechanism 2, and the second moving mechanism 3, with strong anti-interference ability to ensure accurate and reliable live-line detection results; 2) Sensitivity and accuracy: High sensitivity to capture weak electric fields, and advanced algorithms to ensure accurate live-line detection and avoid misjudgment and missed judgment; 3) Insulation performance and materials: Use high-quality insulating materials such as epoxy resin, and the overall design focuses on insulation to ensure operation safety; 4) Service life and maintenance: Select durable materials, with a design that is easy to maintain, reducing operation and maintenance costs and ensuring quick recovery for use; 5) Improvement and ease of use: Equipped with audible and visual alarms, simplifying the human-machine interface, improving the user experience, and adapting to different operation requirements.

[0041] The control module is used to control the movement of the first motion mechanism 2 and the second motion mechanism 3 so that the tester 5 contacts the circuit, and determines whether the circuit is energized based on the output signal of the tester 5. The specific type of the control module can be set according to actual needs and is not limited to this. For example, the control module can be a PLC controller.

[0042] like Figure 2 As shown, in some embodiments, the sports car 1 includes: a car body 11, an engine (not shown) and two sets of running mechanisms. Among them, the first motion mechanism 2 is arranged on the car body 11, and the engine is arranged in the car body 11, and the two sets of running mechanisms are arranged on both sides of the car body 11, respectively, and the power output end of the engine is connected to the power input end of the running mechanism by transmission, and the engine is used to drive the two sets of running mechanisms to move respectively, so that the car body 11 moves along the preset route to a position close to the line.

[0043] It can be understood that since the two sets of traveling mechanisms are respectively arranged on both sides of the vehicle body 11, and the power output end of the engine and the power input end of the traveling mechanism are connected by transmission, the engine can drive the two sets of traveling mechanisms to move, so that the vehicle body 11 moves along the preset route to a position close to the line, thereby ensuring the high-efficiency and high-precision monitoring of the line by the electroscope 5.

[0044] It should be noted that the vehicle body 11 is used to carry the engine, two sets of walking mechanisms, the first motion mechanism 2, etc. The specific type of the vehicle body 11 can be set according to actual needs and is not limited to this. For example, the vehicle body 11 can be a rectangular frame welded by channel steel and angle steel.

[0045] The engine is used to drive the traveling mechanism, and the specific type of the engine can be set according to actual needs and is not limited to this.

[0046] like Figure 2 and Figure 3 As shown, in some embodiments, the walking mechanism includes: a wheel 12, a variable motor 13, a variable pump 14 and a first control module 15, wherein the wheel 12 is rotatably arranged on the side of the vehicle body 11, the variable motor 13 is arranged in the vehicle body 11, and the power output end of the variable motor 13 is transmission-connected with the power input end of the wheel 12, the variable pump 14 is arranged in the vehicle body 11, and the liquid outlet end of the variable pump 14 is connected with the liquid inlet end of the variable motor 13, the control end of the first control module 15 is arranged on the vehicle body 11, and the valve control end of the first control module 15 is arranged between the liquid outlet end of the variable pump 14 and the liquid inlet end of the variable motor 13, and the first control module 15 is used to control the swing angle direction and flow rate of the variable pump 14, so that the variable motor 13 drives the wheel 12 to walk along a preset direction and a first preset speed.

[0047] It can be understood that, since the power output end of the variable motor 13 is connected to the power input end of the wheel 12 by transmission, and the liquid outlet end of the variable pump 14 is connected to the liquid inlet end of the variable motor 13, the variable pump 14 can use the pressurized oil to achieve the power output of the variable motor 13, thereby using the variable motor 13 to drive the wheel 12 to move, and since the valve control end of the first control module 15 is set between the liquid outlet end of the variable pump 14 and the liquid inlet end of the variable motor 13, the first control module 15 can control the swing angle direction and flow rate of the variable pump 14, thereby controlling the output of the variable pump 14, and then making the wheel 12 move along the preset direction and the first preset speed, meeting the position adjustment requirements of the electroscope 5.

[0048] It should be noted that the variable pump 14 and the variable motor 13 form a closed driving circuit for the wheel 12 . The variable pump 14 is connected to the engine flywheel via a coupling and realizes flexible driving of the variable motor 13 driven by the engine.

[0049] Specifically, the first control module 15 adjusts the direction and speed of the wheel 12 by controlling the swing angle direction and flow rate of the variable pump 14, and realizes the forward, backward, steering and other operations of the vehicle body 11 through the cooperation of the two sets of wheels 12. The specific type of the first control module 15 can be set according to actual needs, and there is no limitation to this. For example, the first control module 15 has a handle for control, a proportional valve for controlling the oil circuit, etc., and the valve core displacement of the corresponding proportional valve is controlled by manipulating the two handles, and the swing angle direction and displacement of the variable pump 14 are changed in coordination with the pressure oil, so as to realize the two-way walking and turning of the sports car 1.

[0050] like Figure 3 As shown, in some embodiments, the walking mechanism also includes: a brake 16 and a second control module 17, wherein the brake 16 is arranged in the vehicle body 11, and the braking end of the brake 16 is transmission-connected to the power output end of the variable motor 13, the control end of the second control module 17 is arranged on the vehicle body 11, and the valve control end of the second control module 17 is arranged at the liquid inlet end of the brake 16, and the second control module 17 is used to control the flow of the brake 16 so that the brake 16 drives the variable motor 13 to brake at a second preset speed.

[0051] It can be understood that, since the braking end of the brake 16 is transmission-connected to the power output end of the variable motor 13, the brake 16 can utilize the pressurized oil to brake the variable motor 13, thereby realizing the deceleration and parking functions of the sports car 1, and since the valve control end of the second control module 17 is arranged at the liquid inlet end of the brake 16, the second control module 17 can control the flow of the brake 16 so that the brake 16 drives the variable motor 13 to brake at a second preset speed, thereby meeting the stable parking positioning requirements of the sports car 1.

[0052] It should be noted that the second control module 17 realizes braking of the vehicle body 11 by controlling the flow of the brake 16. The specific type of the second control module 17 can be set according to actual needs and is not limited to this. For example, the second control module 17 includes a hand pump and a reversing valve with a control function. The hand pump provides power, and the reversing valve 26 is used to transmit the power directly to the brake, or indirectly transmit it to the control end of the variable pump 14 using the proportional valve of the first control module 15.

[0053] In some embodiments, the sports car 1 further includes: a plurality of support legs, which are threadedly disposed on the bottom of the car body 11, and the support legs are used to support the car body 11 when the car body 11 moves along a preset route to a route.

[0054] It can be understood that since the support leg is threadedly arranged at the bottom of the vehicle body 11, when the vehicle body 11 moves along the preset route to the line, the support leg can be extended by rotation, thereby supporting the vehicle body 11, meeting the positioning requirements of the vehicle body 11, and further ensuring the stable electrical testing of the line by the tester 5.

[0055] It should be noted that when the vehicle body 11 is positioned, the support legs are rotated and extended, and when the vehicle body 11 is traveling, the support legs are rotated and retracted. The specific type of the support legs can be set according to actual needs and is not limited thereto.

[0056] like Figure 2 As shown, in some embodiments, the first motion mechanism 2 includes: a chassis 21, a platform 22, a scissor arm 23, a hydraulic cylinder 24 and a hydraulic drive system. Among them, the chassis 21 is arranged on the motion vehicle 1, and the second motion mechanism 3 is arranged on the platform 22, the scissor arm 23 is arranged between the chassis 21 and the platform 22, the power output end of the hydraulic cylinder 24 is connected to the power input end of the scissor arm 23 by transmission, the signal input end of the hydraulic drive system is connected to the signal output end of the control module, and the liquid outlet end of the hydraulic drive system is connected to the liquid inlet end of the hydraulic cylinder 24, and the control system is used to control the oil of the hydraulic drive system to drive the hydraulic cylinder 24 to extend and retract and drive the scissor arm 23 to rise and fall.

[0057] It can be understood that, since the scissor arm 23 is arranged between the chassis 21 and the platform 22, and the power output end of the hydraulic cylinder 24 is connected to the power input end of the scissor arm 23 by transmission, the signal input end of the hydraulic drive system is connected to the signal output end of the control module, and the liquid outlet end of the hydraulic drive system is connected to the liquid inlet end of the hydraulic cylinder 24, the hydraulic drive system can use the pressure oil to drive the hydraulic cylinder 24 to perform telescopic action under the control of the control module, thereby driving the lifting and lowering of the scissor arm 23. Therefore, by using the cooperation of the chassis 21, the platform 22, the scissor arm 23, the hydraulic cylinder 24, etc., the position adjustment requirements of the electroscope 5 in the vertical direction can be met, thereby ensuring the high efficiency and high precision of the electroscope 5 on the circuit.

[0058] It should be noted that the chassis 21 is used to be arranged on the vehicle body 11, the platform 22 is used to carry the second moving mechanism 3, the scissor arm 23 is of a scissor structure and is arranged between the chassis 21 and the platform 22. The lifting of the platform 22 is realized by the drive of the hydraulic cylinder 24, and further the position adjustment of the electrical detector 5 in the vertical direction is realized.

[0059] As Figure 3 shown, in some embodiments, the hydraulic drive system includes: a gear pump 25 and a directional control valve 26. Among them, the inlet end of the gear pump 25 is connected to the outlet end of the fuel tank, and the inlet end of the directional control valve 26 is connected to the outlet end of the gear pump 25. The outlet end of the directional control valve 26 is connected to the inlet end of the fuel tank. The first fluid-changing end of the directional control valve 26 is connected to the rodless cavity of the hydraulic cylinder 24, and the second fluid-changing end of the directional control valve 26 is connected to the rod chamber of the hydraulic cylinder 24. The inlet end and the first fluid-changing end of the directional control valve 26 are conducted, and the outlet end and the second fluid-changing end of the directional control valve 26 are conducted; or, the inlet end and the second fluid-changing end of the directional control valve 26 are conducted, and the outlet end and the first fluid-changing end of the directional control valve 26 are conducted.

[0060] It can be understood that when the inlet end and the first fluid-changing end of the directional control valve 26 are conducted, and the outlet end and the second fluid-changing end of the directional control valve 26 are conducted, the gear pump 25 conveys the pressurized oil to the rodless cavity of the hydraulic cylinder 24, and the fuel tank receives the oil from the rod chamber of the hydraulic cylinder 24, thereby realizing the extension action of the hydraulic cylinder 24; when the inlet end and the second fluid-changing end of the directional control valve 26 are conducted, and the outlet end and the first fluid-changing end of the directional control valve 26 are conducted, the gear pump 25 conveys the pressurized oil to the rod chamber of the hydraulic cylinder 24, and the fuel tank receives the oil from the rodless cavity of the hydraulic cylinder 24, thereby realizing the retraction action of the hydraulic cylinder 24. Thus, through the commutation of the directional control valve 26 and the cooperation of the gear pump 25, the telescopic control of the hydraulic cylinder 24 can be realized, so as to realize the lifting action of the scissor arm 23, and further realize the position adjustment of the electrical detector 5 in the vertical direction.

[0061] As Figure 3 shown, in some embodiments, the hydraulic drive system further includes: a hydraulic lock 27, and the hydraulic lock 27 is arranged between the first fluid-changing end of the directional control valve 26 and the rodless cavity of the hydraulic cylinder 24 and between the second fluid-changing end of the directional control valve 26 and the rod chamber of the hydraulic cylinder 24.

[0062] It can be understood that since the hydraulic lock 27 is arranged between the first fluid-changing end of the directional control valve 26 and the rodless cavity of the hydraulic cylinder 24 and between the second fluid-changing end of the directional control valve 26 and the rod chamber of the hydraulic cylinder 24, when the hydraulic drive system fails, the hydraulic lock 27 can prevent the platform 22 from falling due to its own weight and load, avoid causing safety problems for the staff, and ensure the high safety of the overall device.

[0063] It should be noted that the hydraulic lock 27 is used to lock the hydraulic cylinder 24, and the specific type of the hydraulic lock 27 can be set according to actual needs, and there is no limitation on this.

[0064] For the control of the first moving mechanism 2 by the control module, the velocity function of the device can be established by the instant center method of velocity first, then the mathematical model of the lifting velocity control system of the device is established, and finally the control system model of the lifting velocity is built with Simulink and implemented by applying the fuzzy PID control technology.

[0065] The control module of this embodiment takes the hydraulic control of the above-mentioned scissor lift structure as the object, uses the fuzzy PID control technology to adjust the parameters in real time, simplifies the algorithm, solves the problem of unstable movement during the lifting stage of the device, and improves the control performance of the system.

[0066] For this system, the output signal of the system is the movement speed v of the piston rod, the control signal is the voltage U of the electromagnetic proportional direction valve 26, the interference signal is the working load f, and what is sought is the transfer function of the output signal to the control signal and the interference signal. It is based on the displacement equation of the proportional direction valve 26, the spool flow equation, the flow continuity equation of the working chamber of the hydraulic cylinder 24, and the force balance equation of the moving part of the hydraulic cylinder 24.

[0067] Selection of hydraulic cylinders and gear pumps:

[0068] According to the design requirements, using the principle of moment balance, it is calculated that the maximum load of the hydraulic cylinder in the device is 65000N, and the working pressure p = 6MPa is initially selected during the lifting process.

[0069] The diameter of the hydraulic cylinder is: Taking λ = d / D = 0.55 and rounding the calculation result, we get: D = 125mm, d = 70mm.

[0070] The required flow rate of the hydraulic pump:

[0071] Among them, D is the cylinder diameter of the hydraulic cylinder, S is the stroke of the hydraulic cylinder, t is the lifting time, and ηvol is the volumetric efficiency, taking 0.9.

[0072] The displacement of the gear pump:

[0073] Among them, n b is the rotational speed of the gear pump.

[0074] After calculation: the displacement of the gear pump is 15.4 mL / r. Considering the convenience of installation and high cost performance of the gear pump, the gear pump is selected as the power source of the lifting system, and the specific parameters are: nominal displacement 16.2 cm 3 , rated pressure 25MPa.

[0075] As Figure 4 shown, in some embodiments, the second motion mechanism 3 includes: a first linear motion unit 31 and a second linear motion unit 32. The first linear motion unit 31 is disposed at the moving end of the first motion mechanism 2, and the second motion mechanism 3 is configured to move along a first direction in the horizontal direction. The second linear motion unit 32 is disposed at the moving end of the first linear motion unit 31, and the electrical checker 5 is disposed at the moving end of the second linear motion unit 32. The second linear motion unit 32 is configured to move along a second direction in the horizontal direction. Wherein, the first direction and the second direction form a preset angle. The signal output end of the control module is respectively connected to the signal input end of the first linear motion unit 31 and the signal input end of the linear motion unit, and the control module is configured to control the movement of the first linear motion unit 31 and the second linear motion unit 32 so that the electrical checker 5 moves along the horizontal direction.

[0076] It can be understood that since the first linear motion unit 31 is disposed at the moving end of the first motion mechanism 2, the second linear motion unit 32 is disposed at the moving end of the first linear motion unit 31, and the electrical checker 5 is disposed at the moving end of the second linear motion unit 32, the electrical checker 5 can adjust its position along the first direction in the horizontal direction by using the first linear motion unit 31, and adjust its position along the second direction in the horizontal direction by using the second linear motion unit 32. Thus, through the cooperation of the first linear motion unit 31 and the second linear motion unit 32, the position adjustment of the electrical checker 5 in the horizontal direction can be realized, and further, the high-efficiency and high-precision electrical inspection of the electrical checker 5 on the line can be ensured.

[0077] It should be noted that both the first linear motion unit 31 and the second linear motion unit 32 are linear motion units. A linear motion unit is a mechanical device that converts rotational motion into precise linear motion. The servo motor drives the lead screw to rotate, and the nut moves along the axial direction of the lead screw and drives the slider to move linearly.

[0078] Preferably, the first direction and the second direction are perpendicular, and the first linear motion unit 31 and the second linear motion unit 32 form a cross slide table module. For example, the stroke of the cross slide table module is 600 mm, and the stepper motor used is 24V 350W. Through the combined movement of the two linear motion units, two degrees of freedom of movement in the X and Y axis directions are generated in the working range of the plane. In the plane, the two axes can move independently or cooperate to complete other complex plane motions such as linear interpolation and circular interpolation.

[0079] The control module controls the first linear motion unit 31 and the second linear motion unit 32. The fixed moving direction, distance, and moving speed can be set through buttons. The pulse and direction signals are obtained through real-time measurement by the control module and then output to the drive power supply, so as to realize the comprehensive control of speed, direction, and distance.

[0080] As Figure 1 and Figure 2 shown, in some embodiments, the device further includes: an insulating telescopic rod 4, the insulating telescopic rod 4 is arranged at the moving end of the second moving mechanism 3, and the electrical detector 5 is arranged at the telescopic end of the insulating telescopic rod 4.

[0081] It can be understood that, since the insulating telescopic rod 4 is arranged at the moving end of the second moving mechanism 3, and the electrical detector 5 is arranged at the telescopic end of the insulating telescopic rod 4, the electrical detector 5 can use the insulating telescopic rod 4 to adjust its position, so as to cooperate with the first moving mechanism 2 to achieve precise displacement.

[0082] It should be noted that the insulating telescopic rod 4 adopts a fishing rod type telescopic structure which is convenient to operate and can be manually operated, and the whole has good insulating performance.

[0083] The electrical detection device of this embodiment can realize the intellectualization of electrical detection, and at the same time solve the occurrence of human unsafe risks in the traditional electrical detection method. The device realizes forward and backward movement, lifting, left and right movement, etc. through electric control according to the line height and position of each voltage level, so as to achieve the purpose of electrical detection.

[0084] In terms of the overall appearance and structural design, the vehicle body 11 is welded by lightweight steel, which not only realizes the light weight of the vehicle body, but also ensures excellent strength and load-bearing capacity. The vehicle body 11 integrates the first moving mechanism 2, the second moving mechanism 3, etc. constructed by advanced composite materials such as stainless steel and aluminum alloy. This innovative design not only enhances the structural stability, but also endows the metal parts with excellent toughness and corrosion resistance, ensuring that the electrical inspection vehicle can work with ease in various harsh environments, with a service life far exceeding that of traditional iron materials and almost eliminating the trouble of rust. Special deep concave pattern tires are assembled at the bottom of the side of the vehicle body 11. These tires are well-designed, effectively improving the grip and stability on complex roads, and their low rolling coefficient makes the electrical inspection vehicle more handy when driving on gravel ground.

[0085] The electrical detection device of this embodiment adopts an advanced electronically controlled hydraulic lifting system, ensuring the smoothness and precision during the lifting process. The system has an electronic transmission signal stability mechanism built-in, and is equipped with an analog insurance device, effectively preventing mechanical parts from jamming and wearing, and at the same time having a microcircuit automatic error correction function. Once a mechanical failure occurs, it can quickly cut off the power supply signal to protect the safety of the vehicle body 11 in all directions. In addition, the vehicle body 11 can also be equipped with a mechanical pull rod to cope with sudden power outages, ensuring that it can also be moved by manpower or external towing in case of emergency.

[0086] The voltage detector of this embodiment adopts a dual-signal channel design of infrared and wireless simulation, combined with modular integrated circuits, to achieve extremely stable and reliable signal transmission. The equipped multi-functional remote control has a user-friendly operation interface and sensitive response, greatly improving the operation convenience and user experience.

[0087] The voltage detector of this embodiment integrates an electric and a manual dual-mode operating system, and can easily meet various driving requirements.

[0088] In the voltage detector of this embodiment, the voltage detection part is the core functional area, and a high-voltage acoustic-optic voltage detector 5 is configured. This voltage detector 5 adopts an independent chip system, effectively reducing circuit interference and ensuring the accuracy and reliability of voltage detection. The voltage detector 5 itself has high sensitivity, quick response, and a long service life. At the same time, the voltage detector 5 is equipped with an epoxy resin insulating rod. This material not only has excellent insulation performance but also has the characteristics of light weight and high strength, providing double safety guarantees for voltage detection operations.

[0089] When the voltage detector of this embodiment is operating, the voltage detector 5 can be controlled near the power grid by the moving vehicle 1. The lifting height can be adjusted over a large range by using the lifting structure (0 - 6m), and the position can be precisely adjusted left and right and back and forth by the movable horizontal translation structure; if the lifting height is not appropriate, the telescopic rod can also be used to adjust to ensure effective contact between the measuring end of the voltage detector 5 and the object to be measured. The entire lifting structure is detachably connected to the vehicle body 11, which is convenient for the staff to collect, transport, and install. The remotely controlled lifting vehicle can move by itself, reach the designated position, and can stably support under various ground conditions, effectively ensuring the safe operation of the entire device.

[0090] It should be noted that in the description of the present disclosure, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality" is two or more.

[0091] Any process or method description shown in the flowchart or described in other ways herein can be understood as representing a module, segment, or part of code including one or more executable instructions for implementing a specific logical function or process. The scope of the preferred embodiments of the present disclosure includes additional implementations, where the functions can be executed in a substantially simultaneous manner or in the reverse order according to the functions involved, rather than in the order shown or discussed, which should be understood by those skilled in the technical field of the embodiments of the present disclosure.

[0092] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0093] Although the embodiments of the present disclosure have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A line voltage detection device, characterized in that Comprising: A moving vehicle, a first moving mechanism, a second moving mechanism, an electrical detector, and a control module; Wherein, the moving vehicle is used to travel close to the line; The first moving mechanism is arranged on the moving vehicle, and the first moving mechanism is used to move in the vertical direction; The second moving mechanism is arranged at the moving end of the first moving mechanism, and the second moving mechanism is used to move in the horizontal direction; The electrical detector is arranged at the moving end of the second moving mechanism; The signal output end of the control module is respectively connected to the signal input ends of the first moving mechanism and the second moving mechanism, and the signal input end of the control module is connected to the signal output end of the electrical detector. The control module is used to control the movement of the first moving mechanism and the second moving mechanism, so that the electrical detector contacts the line, and judge whether the line is energized according to the output signal of the electrical detector.

2. The line voltage detector according to claim 1, characterized in that, The moving vehicle includes: A vehicle body, an engine, and two sets of traveling mechanisms; Wherein, the first moving mechanism is arranged on the vehicle body, the engine is arranged inside the vehicle body, two sets of the traveling mechanisms are respectively arranged on both sides of the vehicle body, the power output end of the engine is in transmission connection with the power input ends of the traveling mechanisms, and the engine is used to drive the two sets of traveling mechanisms to travel respectively, so that the vehicle body travels along a preset route to close to the line.

3. The line voltage detector according to claim 2, wherein, The traveling mechanism includes: Wheels, variable motors, variable pumps, and a first control module; Wherein, the wheels are rotatably arranged on the side of the vehicle body; The variable motors are arranged inside the vehicle body, and the power output ends of the variable motors are in transmission connection with the power input ends of the wheels; The variable pumps are arranged inside the vehicle body, and the liquid outlet ends of the variable pumps are connected to the liquid inlet ends of the variable motors; The control end of the first control module is arranged on the vehicle body, and the valve control end of the first control module is arranged between the liquid outlet end of the variable pump and the liquid inlet end of the variable motor. The first control module is used to control the swing direction and flow rate of the variable pump, so that the variable motor drives the wheels to travel along a preset direction and at a first preset speed.

4. The line voltage detector according to claim 3, wherein, The traveling mechanism further includes: Brakes and a second control module; Wherein, the brakes are arranged inside the vehicle body, and the braking ends of the brakes are in transmission connection with the power output ends of the variable motors; The control end of the second control module is arranged on the vehicle body, and the valve control end of the second control module is arranged at the liquid inlet end of the brakes. The second control module is used to control the flow rate of the brakes, so that the brakes drive the variable motors to brake at a second preset speed.

5. The line voltage detector according to claim 2, characterized in that, The moving vehicle further includes: A plurality of support legs, the support legs are threadedly arranged at the bottom of the vehicle body, and the support legs are used to support the vehicle body when the vehicle body travels along a preset route to the line.

6. The line voltage checking device according to claim 1, characterized in that, The first moving mechanism includes: A chassis, a platform, a scissor arm, a hydraulic cylinder, and a hydraulic drive system; Wherein, the chassis is arranged on the sports vehicle, and the second motion mechanism is arranged on the platform. The scissor arm is arranged between the chassis and the platform, and the power output end of the hydraulic cylinder is in transmission connection with the power input end of the scissor arm; The signal input end of the hydraulic drive system is connected to the signal output end of the control module, and the liquid outlet end of the hydraulic drive system is connected to the liquid inlet end of the hydraulic cylinder. The control system is used to control the hydraulic oil of the hydraulic drive system to drive the hydraulic cylinder to extend and retract and drive the scissor arm to lift.

7. The line voltage detection device according to claim 6, characterized in that, The hydraulic drive system includes: A gear pump and a reversing valve; Wherein, the liquid inlet end of the gear pump is connected to the liquid outlet end of the fuel tank, and the liquid inlet end of the reversing valve is connected to the liquid outlet end of the gear pump. The liquid outlet end of the reversing valve is connected to the liquid inlet end of the fuel tank. The first liquid changing end of the reversing valve is connected to the rodless cavity of the hydraulic cylinder, and the second liquid changing end of the reversing valve is connected to the rod chamber of the hydraulic cylinder; The liquid inlet end and the first liquid changing end of the reversing valve are conducted, and the liquid outlet end and the second liquid changing end of the reversing valve are conducted; Or, the liquid inlet end and the second liquid changing end of the reversing valve are conducted, and the liquid outlet end and the first liquid changing end of the reversing valve are conducted.

8. The line voltage detection device according to claim 7, characterized in that, The hydraulic drive system further includes: A hydraulic lock, which is arranged between the first liquid changing end of the reversing valve and the rodless cavity of the hydraulic cylinder and between the second liquid changing end of the reversing valve and the rod chamber of the hydraulic cylinder.

9. The line voltage detector according to claim 1, wherein The second motion mechanism includes: A first linear motion unit, which is arranged at the moving end of the first motion mechanism, and the second motion mechanism is used to move in a first direction in the horizontal direction; A second linear motion unit, which is arranged at the moving end of the first linear motion unit, and the electroscope is arranged at the moving end of the second linear motion unit. The second linear motion unit is used to move in a second direction in the horizontal direction; Wherein, the first direction and the second direction form a preset angle; The signal output end of the control module is respectively connected to the signal input end of the first linear motion unit and the signal input end of the linear motion unit, and the control module is used to control the first linear motion unit and the second linear motion unit to move so that the electroscope moves in the horizontal direction.

10. The line voltage detector according to claim 1, characterized in that, The device further includes: An insulating telescopic rod, which is arranged at the moving end of the second motion mechanism, and the electroscope is arranged at the telescopic end of the insulating telescopic rod.

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