A new type of live working wire lifting device

Abstract

The application discloses a novel live working wire lifting device and relates to the technical field of distribution network maintenance tools.The novel live working wire lifting device comprises a holding pole, a connecting piece is fixedly installed on the top of the holding pole, a supporting seat is fixedly installed on the middle part of the holding pole through bolts, the connecting piece is penetrated by a horizontally arranged supporting cross bar, two first mounting seats are symmetrically arranged with the connecting piece as an axis, supporting rods are fixedly connected to the side surface of the supporting seat, the end of the supporting rod away from the supporting seat is fixedly connected to the lower surface of the first mounting seat, and the supporting cross bar and the supporting rod form a firm triangular supporting frame.The novel live working wire lifting device has the functions of wire lifting and fixing through the installation of the supporting frame, can flexibly adapt to wires with different span distances and wire diameters in cooperation with a wire clamp, meets the working needs of replacing insulators and cross arms in the ground potential operation method, improves the adaptability of the live working scene, and solves the problem of wire supporting difficulty in complex areas.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of network maintenance tools, in particular to a novel live working wire lifting device. BACKGROUND

[0002] In the non-power-off operation of distribution network, there are many areas such as farmland and alleyways that cannot be accessed by insulated boom trucks, resulting in difficulty in replacing straight-line post insulators and cross arms;

[0003] The traditional method is to adopt power-off maintenance, which seriously affects the power supply reliability. The existing ground potential operation method lacks a dedicated wire lifting and fixing device, resulting in low operation efficiency and high safety risk, which is difficult to meet the requirement of high power supply reliability.

[0004] Patent document CN109244949B discloses a wire lifting tool for live working of distribution network. The above patent realizes the avoidance of resource waste caused by the cooperation of two insulated boom trucks in the live working of remote edge phase wire, and the work can be completed by using one insulated boom truck, effectively saving the work cost.

[0005] The above patent uses the cooperation of wire lifting reel, insulating rope, turntable, insulating rod, reel ratchet mechanism and turntable ratchet mechanism to lift the fallen live wire to the insulator for binding and fixing, replacing the lifting mode of lifting the wire by insulated boom truck, effectively saving the work cost. However, in the areas where the insulated boom truck cannot enter, there is a problem of difficulty in supporting the wire, which makes it difficult to carry out ground potential operation and improve the operation efficiency.

[0006] Therefore, the present application proposes a novel live working wire lifting device capable of carrying out wire ground potential operation in complex areas. SUMMARY

[0007] The present application aims to provide a novel live working wire lifting device to solve the technical problem of difficulty in wire lifting in complex areas in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a novel live-line working conductor lifting device, comprising a pole, a connector fixedly installed at the top of the pole, a support base fixedly installed in the middle of the pole by bolts, the support base being vertically penetrated by the pole, the connector being penetrated by a horizontally arranged support crossbar, the support crossbar having two first mounting seats symmetrically arranged around the connector as its axis, a support rod fixedly connected to the side of the support base, the end of the support rod away from the support base being fixedly connected to the lower surface of the first mounting seat, the support crossbar forming a sturdy triangular support frame with the support base and the two first mounting seats, and second mounting seats fixedly installed at both ends of the support crossbar by bolts, wire clamps fixedly installed on the upper surfaces of the second mounting seats and the connector, and a conductor hook installed on the lower surface of the second mounting seat.

[0009] Preferably, the wire clamp provided on the connector and the second mounting base consists of a fixed clamp, a movable connecting rod, and a handle. The fixed clamp is designed with a U-shaped groove structure and its bottom is bolted to the upper surface of the second mounting base. One end of the fixed clamp is connected to the pin of the movable connecting rod, and a spring locking pin is provided at the pin connection. The other end of the fixed clamp is provided with a groove that matches the movable connecting rod. The clamping surfaces on the inner sides of the fixed clamp and the movable connecting rod are designed with a biomimetic sawtooth structure. The end of the movable connecting rod away from the fixed clamp is provided as a handle. The movable connecting rod is pushed to rotate along the pin by the handle, and the clamping gap of the wire clamp is flexibly adjusted according to the wire diameter. An elastic composite material pad is added to the inner sides of the fixed clamp and the movable connecting rod.

[0010] Preferably, an anti-sway assembly is installed in the middle of the support rod. The anti-sway assembly is located below the support base and includes four sets of dampers and counterweights. The dampers are distributed circumferentially around the support rod, and a counterweight is connected to the end of each damper. Each damper consists of a cylinder filled with high-viscosity silicone oil, a damping piston, a piston rod, and a universal ball joint. One end of the cylinder is a sealed end, and the other end is an open end with internal threads and a guide sealing cap is installed. The universal ball joint is fixedly installed on the sealed end of the cylinder and connected to the bottom surface of the support base. The damping piston is located inside the cylinder and fixedly connected to one end of the piston rod. The outer surface of the damping piston is machined with axial through holes evenly distributed along the circumference, which serve as damping channels for the silicone oil to pass through.

[0011] Preferably, the counterweight has a blind hole with internal threads machined in the center and connected to the other end of the piston rod. The counterweight has a sealed magnetorheological fluid cavity machined inside. An electromagnetic coil is fixedly installed inside the magnetorheological fluid cavity. The electromagnetic coil is encapsulated in a special groove outside the wall of the magnetorheological fluid cavity and is potted and fixed with high-temperature resistant epoxy resin for thermal insulation. The built-in inertial piston divides the magnetorheological fluid cavity into two working chambers and completely fills the magnetorheological fluid cavity.

[0012] Preferably, two sets of fixing components are arranged horizontally and installed vertically on the side wall of the support rod below the support base;

[0013] The fixing components include: a clamp, an arc-shaped mating part, a first wheel tensioner, a rotating handle, and a chain;

[0014] The clamp is bolted to the side wall of the pole. The arc-shaped mating part is trapezoidal in shape. The narrow bottom end of the arc-shaped mating part is fixedly connected to the outer wall surface of the clamp. The wide bottom end of the arc-shaped mating part is concave inward to form an arc shape that fits the pole. An anti-slip pad is provided on the arc-shaped outer surface of the wide bottom end of the arc-shaped mating part. A first wheel tensioner is installed at one end of the wide bottom of the arc-shaped mating part. A rotating handle is provided at the end of the first wheel tensioner away from the arc-shaped mating part. The retracting end located in the middle of the first wheel tensioner is connected to the chain. The end of the chain away from the first wheel tensioner is connected to the other end of the wide bottom of the arc-shaped mating part.

[0015] Preferably, a wire tensioner is provided on the side of the lower part of the pole. The wire tensioner is located between the bottom of the pole and the lower fixing assembly. The wire tensioner consists of a second wheel tensioner and a lifting device. The input end of the second wheel tensioner is connected to a rocker arm, and the output end of the second wheel tensioner is connected to a gear reducer. The end of the gear reducer away from the second wheel tensioner is connected to the lifting device. An insulating strip is provided inside the lifting device. The starting end of the insulating strip is fixedly installed inside the lifting device, and the end of the insulating strip is connected to a lower hook. An upper hook is fixedly installed on the top of the lifting device.

[0016] Preferably, a connecting ring is fixedly installed at the bottom of the boom, the lower hook of the jack is connected to the connecting ring, and the lower surface of the connection between the clamp and the arc-shaped mating part in the lower fixing assembly is connected to the upper hook of the jack.

[0017] Preferably, the support pole, the support crossbar, and the support rod are all made of epoxy glass, the connectors, the support base, and the fixing components are all made of cast iron, and the first mounting base, the second mounting base, the wire clamp, the wire tensioner, and the damper are all made of heat-treated aluminum alloy.

[0018] Preferably, the pole, support crossbar, and support rod are all made of insulating material, and the parts that come into contact with the wire and the human body are also insulated. The handle of the wire clamp is wrapped with a rubber insulating sleeve, and the entire counterweight is encapsulated in an integrally cast epoxy resin insulating shell. The installation position of the wire tensioner is far away from the pole and other conductive parts, and the rocker arm of the wire tensioner is wrapped with an insulating sleeve made of epoxy glass and coated with an insulating coating.

[0019] Preferably, the support frame consisting of the support crossbar and the support rod, the two fixing components and the wire tensioner are all modularly designed, and can be quickly installed and removed from the pole by bolts, upper hooks and lower hooks.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. This invention achieves the function of lifting and fixing the conductor by installing a support frame. With the help of the wire clamp, it can flexibly adapt to conductors with different spans and diameters, meet the work needs of replacing insulators and crossarms in the ground potential operation method, improve the adaptability of live working scenarios, and solve the problem of difficult conductor support in complex areas.

[0022] 2. This invention achieves flexible installation by installing a fixing component. The segmented fixing mechanism, combined with the first wheel tensioner, can adapt to poles of different diameters, tightly hold the pole, provide a stable force point for the support frame, and maintain the overall stability and reliability of the device.

[0023] 3. By installing anti-sway components, this invention achieves the function of suppressing swaying, greatly reducing the risk of short circuits or discharges caused by shaking with adjacent equipment or structures, improving operational accuracy, and significantly enhancing operational safety and reliability;

[0024] 4. This invention improves the safety of live-line work through its insulation design. The device has excellent insulation performance, eliminates safety hazards in live-line maintenance, improves the efficiency of maintenance, ensures a continuous and stable power supply, and reduces the impact of power outages on daily life and production. Attached Figure Description

[0025] Figure 1 This is a front view structural diagram of the present invention;

[0026] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0027] Figure 3 This is a schematic diagram of the support frame structure of the present invention;

[0028] Figure 4 This is a schematic diagram showing the position of the fixing component of the present invention;

[0029] Figure 5 This is a schematic diagram of the fixed component structure of the present invention;

[0030] Figure 6 This is a schematic diagram showing the position of the wire tensioner of the present invention;

[0031] Figure 7 This is a schematic diagram of the wire tensioner structure of the present invention;

[0032] Figure 8 This is a schematic diagram of the wire clamp structure of the present invention;

[0033] Figure 9This is a schematic diagram of the anti-sway component structure of the present invention.

[0034] In the diagram: 1. Support pole; 2. Support crossbar; 3. Connector; 4. Support base; 5. First mounting base; 6. Support rod; 7. Second mounting base; 8. Wire clamp; 9. Fixing assembly; 10. Wire tensioner; 11. Anti-sway assembly; 12. Clamp; 13. Arc-shaped mating part; 14. First wheel tensioner; 15. Rotating handle; 16. Chain; 17. Second wheel tensioner; 18. Lifter; 19. Insulating tape; 20. Lower hook; 21. Upper hook; 22. Gear reducer; 23. Rocker arm; 24. Connecting ring; 25. Fixed clamp; 26. Movable connecting rod; 27. Handle; 28. Wire hook; 29. ​​Damper; 30. Counterweight; 31. Universal ball joint; 32. Piston rod; 33. Damping piston; 34. Cylinder; 35. Magnetorheological fluid chamber; 36. Electromagnetic coil; 37. Inertial piston. Detailed Implementation

[0035] 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.

[0036] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] Example 1: Please refer to Figure 1 , Figure 2 and Figure 3A novel live-line working conductor lifting device includes a pole 1, a connector 3 fixedly installed at the top of the pole 1, a support base 4 fixedly installed in the middle of the pole 1 by bolts, the support base 4 being vertically penetrated by the pole 1, the connector 3 being penetrated by a horizontally arranged support crossbar 2, the support crossbar 2 having two first mounting seats 5 symmetrically arranged around the connector 3 as the axis, a support rod 6 fixedly connected to the side of the support base 4, the end of the support rod 6 away from the support base 4 being fixedly connected to the lower surface of the first mounting seat 5, the support crossbar 2 forming a sturdy triangular support frame with the support base 4 and the two first mounting seats 5, and second mounting seats 7 fixedly installed at both ends of the support crossbar 2 by bolts, wire clamps 8 being fixedly installed on the upper surface of the second mounting seat 7 and the connector 3, and a conductor hook 28 being installed on the lower surface of the second mounting seat 7;

[0039] Furthermore, this embodiment demonstrates the significant application value of the live-line working conductor lifting device in distribution network maintenance operations. The mast 1, as the main support structure of the device, is made of epoxy glass, possessing excellent insulation performance and mechanical strength, capable of withstanding various loads generated during conductor lifting. A connector 3, made of cast iron, is fixedly installed at the top of the mast 1, exhibiting high rigidity and durability. The connector 3 serves as the core connection point of the entire support device and provides a stable mounting base for the support crossbar 2. A support seat 4, also made of cast iron, is bolted to the middle of the mast 1. The crossbar 2 extends horizontally through the connector 3, and two first mounting seats 5 are symmetrically arranged around the connector 3 as the axis. The first mounting seats 5 are made of heat-treated aluminum alloy, which is lightweight and high-strength. The side of the support seat 4 is fixedly connected to the support rod 6, and the other end of the support rod 6 is bolted to the lower surface of the first mounting seat 5. The crossbar 2 and the support rod 6 are connected through the first mounting seats 5 and the support seat 4 to form a stable triangular support structure, which can effectively disperse the tension and bending moment borne by the crossbar 2. This support structure can also evenly transfer the weight of the conductor and the external load to the support rod 1, avoiding stress concentration that could cause local damage to the device.

[0040] This triangular structure not only improves the stability of the overall device, but also effectively resists the lateral and torsional forces generated during conductor lifting, preventing the device from overturning or deforming due to uneven force. It achieves reliable lifting and fixing of the conductor, and is suitable for complex scenarios such as replacing insulators and crossarms in ground potential operation. It solves the problem of conductor support difficulties in areas where insulated bucket trucks cannot enter, and significantly improves the efficiency and safety of live-line work.

[0041] Example 2: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 8A novel live-line working conductor lifting device includes a pole 1, a connector 3 fixedly installed at the top of the pole 1, a support base 4 fixedly installed in the middle of the pole 1 by bolts, the support base 4 being vertically penetrated by the pole 1, the connector 3 being penetrated by a horizontally arranged support crossbar 2, and second mounting seats 7 fixedly installed at both ends of the support crossbar 2 by bolts. A wire clamp 8 is fixedly installed on the upper surface of both the second mounting seat 7 and the connector 3, and a conductor hook 28 is also installed on the lower surface of the second mounting seat 7.

[0042] The cable clamp 8 provided on the connector 3 and the second mounting base 7 consists of a fixed clamp 25, a movable connecting rod 26, and a handle 27. The fixed clamp 25 is designed with a U-shaped groove structure and its bottom is bolted to the upper surface of the second mounting base 7. One end of the fixed clamp 25 is connected to the movable connecting rod 26 with a pin, and a spring locking pin is provided at the pin connection. The other end of the fixed clamp 25 is provided with a groove that matches the movable connecting rod 26. The clamping surfaces on the inner sides of the fixed clamp 25 and the movable connecting rod 26 are designed with a biomimetic sawtooth structure. The end of the movable connecting rod 26 away from the fixed clamp 25 is provided as the handle 27. The handle 27 pushes the movable connecting rod 26 to rotate along the pin, and the clamping gap of the cable clamp 8 can be flexibly adjusted according to the wire diameter. The inner sides of the fixed clamp 25 and the movable connecting rod 26 are provided with elastic composite material pads.

[0043] Furthermore, this embodiment illustrates the role of the wire clamp 8 in lifting the conductor in the live-line working conductor lifting device. The supporting crossbar 2 is made of epoxy glass, which has high strength and insulation. Second mounting seats 7 are respectively provided at both ends of the supporting crossbar 2. The second mounting seats 7 are fixed by bolts. The installation position of the second mounting seats 7 can be flexibly adjusted by loosening and tightening the bolts according to the actual conductor span, thereby adapting to the conductor arrangement requirements of different spacings. Wire clamps 8 are installed on the upper surfaces of both the second mounting seats 7 and the connecting piece 3. The wire clamp 8 serves as a conductor fixing component. Its fixing clamp 25 is designed with a U-shaped groove structure. The movable connecting rod 26 is connected to the fixing clamp 25 via a pin. The opening and closing of the wire clamp 8 is achieved by pushing the handle 27, which can be flexibly adjusted according to the conductor diameter. The clamping gap of the wire clamp 8 enables reliable clamping of wires of different diameters. The spring locking pin at the pin connection can lock the movable link 26 after it is in place, preventing the movable link 26 from being accidentally opened in a vibrating environment. The inner sides of the fixed clamp 25 and the movable link 26 are provided with a biomimetic sawtooth structure, which effectively increases the friction between the clamping surface and the wire, ensuring that the wire remains stable in wind or vibration environments and preventing the wire from slipping during the lifting process. The elastic composite material pads provided on the inner sides of the fixed clamp 25 and the movable link 26 protect the wire and prevent it from being crushed and causing safety hazards. The lower surface of the second mounting base 7 is also equipped with a wire hook 28 for temporarily suspending the wire or auxiliary tools, improving the convenience of maintenance operations.

[0044] In addition, the triangular support structure formed by the support crossbar 2 and the support rod 6, together with the wire clamp 8, not only has high mechanical strength, but also maintains the stability of the conductor in complex environments, providing a reliable support platform for ground potential operations. In practical applications, operators can quickly adapt to the spatial distribution of conductors on site by adjusting the position of the second mounting seat 7 on the support crossbar 2, thereby efficiently completing the replacement of insulators or crossarms, reducing power outage time, and improving the reliability of power supply.

[0045] Example 3: Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 9 A novel live-line working conductor lifting device includes a support pole 1. An anti-sway component 11 is installed in the middle of the support pole 1. The anti-sway component 11 is located below the support base 4 and includes four sets of dampers 29 and counterweights 30. The dampers 29 are distributed circumferentially around the support pole 1 and a counterweight 30 is connected to the end of each damper 29. Each damper 29 consists of a cylinder 34 filled with high-viscosity silicone oil, a damping piston 33, a piston rod 32, and a universal ball joint 31. One end of the cylinder 34 is a sealed end, and the other end is an open end with internal threads and a guide sealing cover is installed. The universal ball joint 31 is fixedly installed on the sealed end of the cylinder 34 and connected to the bottom surface of the support base 4. The damping piston 33 is located inside the cylinder 34 and is fixedly connected to one end of the piston rod 32. The outer surface of the damping piston 33 is machined with axial through holes evenly distributed along the circumference, which serve as damping channels for the silicone oil to pass through.

[0046] The counterweight 30 has a threaded blind hole machined in the center and is connected to the other end of the piston rod 32. The counterweight 30 has a sealed magnetorheological fluid cavity 35 inside. An electromagnetic coil 36 is fixedly installed inside the magnetorheological fluid cavity 35. The electromagnetic coil 36 is encapsulated in a special groove outside the wall of the magnetorheological fluid cavity 35 and is potted and fixed with high-temperature resistant epoxy resin for thermal insulation. The built-in inertial piston 37 divides the magnetorheological fluid cavity 35 into two working chambers and completely fills the magnetorheological fluid cavity 35 with magnetorheological fluid.

[0047] Furthermore, this embodiment describes the stabilizing function of the anti-sway component 11 of the live-line working conductor lifting device. The anti-sway component 11 is located below the support base 4 in the middle of the mast 1, effectively suppressing the swaying of the device during conductor lifting caused by external wind or operation, thereby greatly reducing the risk of short circuits or discharges with adjacent equipment or structures, and improving operational accuracy and safety. The anti-sway component 11 consists of four sets of dampers 29, which are evenly distributed circumferentially around the mast 1. Each set of dampers 29 has a counterweight 30 connected to its end, forming a symmetrical and stable structure. Each damper 29 has a precisely designed internal structure, including a cylinder 34 filled with high-viscosity silicone oil. One end of the cylinder 34 is a sealed end, and the other end is an open end with internal threads and a guide sealing cap. The silicone oil seal ensures smooth piston movement. The sealed end of the cylinder 34 is fixedly connected to the bottom surface of the support base 4 via a universal ball joint 31, giving the damper 29 a certain degree of flexibility in multiple directions and enabling it to adapt to swinging in different directions. The damper 29 has a damping piston 33 inside, which is fixedly connected to one end of the piston rod 32. The other end of the piston rod 32 is connected to the internal thread blind hole machined in the center of the counterweight 30, so as to achieve a stable installation of the counterweight 30. The outer surface of the damping piston 33 is machined with axial through holes evenly distributed along the circumference. These through holes serve as damping channels for the flow of silicone oil. When the device shakes, the damping piston 33 moves in the cylinder 34, and the silicone oil generates viscous resistance through these channels, thereby consuming the swinging energy and playing a role in damping and vibration reduction.

[0048] The design of the counterweight 30 further enhances the self-adaptive capability of the anti-sway component 11. The counterweight 30 has a sealed magnetorheological fluid cavity 35 machined inside, completely filled with magnetorheological fluid. This fluid can rapidly change its viscosity under the influence of a magnetic field, thereby achieving real-time adjustment of the damping force. An electromagnetic coil 36 is fixedly installed inside the magnetorheological fluid cavity 35. This electromagnetic coil 36 is encapsulated in a special groove outside the wall of the magnetorheological fluid cavity 35 and fixed by potting with high-temperature resistant epoxy resin, ensuring both thermal conductivity and insulation of the coil and improving its durability and reliability. An inertial piston 37 located inside the magnetorheological fluid cavity 35 divides the magnetorheological fluid cavity 35 into two working chambers. When the device is subjected to external excitation... During vibration, the inertial piston 37 moves within the magnetorheological fluid chamber 35, forcing the magnetorheological fluid through the gap between the working chambers. A miniature MEMS gyroscope and accelerometer are installed on the mast 1 to monitor the angular velocity and lateral acceleration of the mast in real time. If the swaying is continuous or violent, the electromagnetic coil 36 is immediately activated to change the magnetic field strength, thereby adjusting the flow resistance of the magnetorheological fluid and "solidifying" the counterweight 30 to provide a huge instantaneous suppressive force, realizing dynamic control of the damping force. The power of the electromagnetic coil 36 and the sensor is provided by the battery inside the mast 1. This damping mechanism enables the anti-sway component 11 to automatically adjust its suppressive effect according to the actual working conditions, maintaining the stable operation of the device under conditions of slight wind or sudden vibration.

[0049] The anti-sway assembly is equipped with a closed-loop active control system, which consists of a signal detection module, a control decision module, and an execution module. The signal detection module includes a miniature MEMS gyroscope (for measuring angular velocity ω) and an accelerometer (for measuring lateral acceleration a) mounted on the upper part of the mast near the support base. Sensor signals are transmitted to the control unit via shielded cables. The control decision module uses an industrial-grade embedded microcontroller to process sensor signals in real time, run control algorithms, and output current control signals. The execution module, namely the electromagnetic coil, uses a power amplifier circuit to amplify the PWM (Pulse Width Modulation) signal output from the control unit, driving the electromagnetic coil to generate a controllable magnetic field.

[0050] The control unit incorporates an adaptive PID (proportional-integral-derivative) control algorithm, and its control logic is as follows:

[0051] Swing amount synthesis: The control unit calculates the synthesized swing amount S in real time at a sampling frequency of 10-100Hz. The calculation formula is as follows: , where k1 and k2 are weighting coefficients, with default values ​​of 0.7 and 0.3 respectively.

[0052] Two-stage trigger control: First-stage response: When S≥0.4, it is determined to be a slight oscillation. The control unit outputs a small basic stabilizing current I1 in the range of 0.8-1.2A, which moderately increases the viscosity of the magnetorheological fluid and provides damping force to suppress vibration; Second-stage strong suppression: When S≥0.8 or angular velocity|ω|≥0.6rad / s, it is determined to be a severe oscillation with a safety risk. The control unit immediately switches to strong suppression mode and jumps the current I2 to 2.0-2.5A within 100ms, which makes the magnetorheological fluid close to the "solidified" state, providing a transient maximum damping force to quickly suppress large oscillations;

[0053] Threshold S th1 S th2 The current values ​​I1 and I2 can be fine-tuned on-site via the human-machine interface of the control unit or Bluetooth connection to adapt to different voltage levels, tower types and wind conditions.

[0054] Feedback and Exit Mechanism: The control unit samples sensor data at a frequency of 10-100 Hz, calculates the synthesized oscillation S in real time, and compares it with a threshold. When S exceeds the threshold, the PID algorithm dynamically calculates and outputs the optimal PWM duty cycle based on the current value, trend, and cumulative amount of S, thereby precisely controlling the electromagnetic coil current. After the suppression current is applied, the system continuously monitors the value of S. If S remains below the threshold for 3 seconds... th1 If the current rises again, the current is linearly reduced until the current I0 is maintained at 0.2A; if the current rises again, the above control process is repeated.

[0055] In actual operation, the anti-sway component 11, through the coordinated work of its circumferentially distributed dampers 29 and counterweights 30, effectively counteracts the lateral and torsional forces generated during conductor lifting. The weight distribution of the counterweights 30 is carefully calculated and combined with the viscous damping of the dampers 29 to form a low-frequency, high-energy-consumption vibration control system. The application of the anti-sway component 11 significantly reduces the sway amplitude of the device during operation and improves the accuracy of conductor positioning, enabling operators to complete the replacement of insulators or crossarms more efficiently and safely. By integrating mechanical damping and intelligent fluid control technology, the anti-sway component 11 embodies the efficiency and reliability of modern live-line working tools, providing a solid guarantee for the smooth progress of distribution network maintenance operations.

[0056] Example 4: Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5A novel live-line working conductor lifting device includes a lifting pole 1. A connector 3 is fixedly installed at the top of the lifting pole 1, and a support base 4 is fixedly installed in the middle of the lifting pole 1 by bolts. Two sets of fixing components 9 are arranged horizontally and vertically on the side wall of the lifting pole 1 below the support base 4. The fixing components 9 include: a clamp 12, an arc-shaped mating part 13, a first wheel tensioner 14, a rotating handle 15, and a chain 16. The clamp 12 is bolted to the side wall of the lifting pole 1. The arc-shaped mating part 13 is trapezoidal in shape, and the narrow arc-shaped mating part 13... The bottom end is fixedly connected to the outer wall surface of the clamp 12. The wide bottom end of the arc-shaped mating part 13 is recessed inward to form an arc shape that fits the pole. An anti-slip pad is provided on the arc-shaped outer surface of the wide bottom end of the arc-shaped mating part 13. A first wheel tensioner 14 is installed at one end of the wide bottom of the arc-shaped mating part 13. A rotating handle 15 is provided at the end of the first wheel tensioner 14 away from the arc-shaped mating part 13. The retracting end located in the middle of the first wheel tensioner 14 is connected to the chain 16. The end of the chain 16 away from the first wheel tensioner 14 is connected to the other end of the wide bottom of the arc-shaped mating part 13.

[0057] Furthermore, this embodiment demonstrates the excellent adaptability of the fixing components 9 in the live-line working conductor lifting device. The two sets of fixing components 9 on the side wall of the pole 1 below the support base 4 are arranged in a longitudinal layered manner, effectively enhancing the connection stability between the pole 1 and the power pole. Each fixing component 9 includes a clamp 12 connected to the pole 1 by bolts. The outer side of the clamp 12 is connected to a specially shaped arc-shaped mating part 13. This arc-shaped mating part 13 adopts a trapezoidal design, with its wide bottom end machined into an arc shape that matches the outer wall of the power pole, and is equipped with an anti-slip pad, significantly increasing the friction between the fixing component 9 and the surface of the power pole, preventing the device from sliding under force. The wide bottom end of the arc-shaped mating part 13 is... Equipped with a first wheel tensioner 14, which is operated by rotating a handle 15, the first wheel tensioner 14 has its retracting end connected to a chain 16, and the other end of the chain 16 is fixed to the other side of the wide bottom end of the arc-shaped mating part 13. By rotating the handle 15 to tighten or loosen the chain 16, the fit between the arc-shaped mating part 13 and the pole can be adjusted, so that the device can adapt to poles of different diameters. The fixing component 9 has high tensile strength and stability, and can provide a reliable anchoring point for the entire device during the lifting of the conductor. Its segmented design and the first wheel tensioner 14 make installation and adjustment more convenient. Operators can quickly complete the fixing according to the actual diameter of the pole without additional tools or complicated operations.

[0058] In addition, the cast iron material of the fixing component 9 ensures its durability and sufficient structural strength, making it suitable for harsh outdoor environments. The application of the fixing component 9 significantly improves the overall stability and adaptability of the device, providing a strong guarantee for the safe operation of live-line work.

[0059] Example 5: Please refer to Figure 1 ,Figure 2 , Figure 6 and Figure 7 A novel live-line working conductor lifting device includes a pole 1. A conductor tensioner 10 is provided on the lower side of the pole 1. The conductor tensioner 10 is located between the bottom of the pole 1 and the lower fixing component 9. The conductor tensioner 10 consists of a second wheel tensioner 17 and a lifting device 18. The input end of the second wheel tensioner 17 is connected to a rocker arm 23, and the output end of the second wheel tensioner 17 is connected to a gear reducer 22. The end of the gear reducer 22 away from the second wheel tensioner 17 is connected to the lifting device 18. An insulating strip 19 is provided inside the lifting device 18. The starting end of the insulating strip 19 is fixedly installed inside the lifting device 18, and the end of the insulating strip 19 is connected to a lower hook 20. An upper hook 21 is fixedly installed on the top of the lifting device 18.

[0060] A connecting ring 24 is fixedly installed at the bottom of the lifting pole 1. The lower hook 20 of the lifting device 18 is connected to the connecting ring 24. The lower surface of the connection between the clamp 12 and the arc-shaped mating part 13 in the lower fixing component 9 is connected to the upper hook 21 of the lifting device 18.

[0061] Furthermore, this embodiment explains the working principle of the wire tensioner 10 of the live-line working wire lifting device. The wire tensioner 10 achieves power transmission and wire lifting through a combination of gear transmission and belt transmission. The wire tensioner 10 is located on the side of the lower part of the boom 1, between the bottom of the boom 1 and the fixing component 9 below it. The main function of the wire tensioner 10 is to control the lifting of the wire. The input end of the second wheel tensioner 17 in the wire tensioner 10 is connected to a rocker arm 23. The operator provides power through the rocker arm 23. The output end of the second wheel tensioner 17 is connected to the starting gear via a gear reducer 22. The lifting device 18 is connected to the transmission system to achieve power transmission and speed adjustment. The insulating strip 19 inside the lifting device 18 is made of high-strength insulating material, which can safely bear the weight of the conductor. The lifting device 18 is connected to the connecting ring 24 at the bottom of the pole 1 through the lower hook 20 set at the end of the insulating strip 19. The pole 1 is connected to the conductor tensioner 10 through the lower hook 20 set at the end of the insulating strip 19. The top of the lifting device 18 is equipped with an upper hook 21, which is connected to the lifting ring at the connection between the clamp 12 and the arc-shaped mating part 13 in the lower fixing component 9 to form a complete power transmission chain.

[0062] When it is necessary to adjust the lifting state of the conductor, first loosen the bolts of the clamps 12 in the two fixed components 9 so that the lifting rod 1 can move in the vertical direction. Rotate the rocker arm 23, and through the transmission of the second wheel tensioner 17 and the gear reducer 22, the lifting device 18 raises and lowers the insulating tape 19. The lifting rod 1 moves under the pull of the insulating tape 19, which drives the wire clamps 8 on the support crossbar 2 to move up and down, thereby realizing the lifting or lowering of the conductor. After the conductor is adjusted, tighten the bolts of the clamps 12 in the two fixed components 9 to provide stable support for the conductor again.

[0063] The conductor tensioner 10 combines the advantages of gear transmission and belt transmission, providing uniform and stable output and easy operation. The second tensioner 17 has a self-locking function to prevent the conductor from slipping accidentally during the lifting process. This not only improves work efficiency but also reduces the labor intensity of operators. It is suitable for various conductor adjustment and support tasks in ground potential operations.

[0064] Example 6: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 7 A novel live-line working conductor lifting device includes a pole 1, wherein the pole 1, the supporting crossbar 2 and the supporting rod 6 are all made of epoxy glass, the connector 3, the support seat 4 and the fixing component 9 are all made of cast iron, and the first mounting seat 5, the second mounting seat 7, the wire clamp 8, the conductor tensioner 10 and the damper 29 are all made of heat-treated aluminum alloy.

[0065] The pole 1, support crossbar 2 and support rod 6 are all made of insulating material. The parts that come into contact with the wire and the human body are also insulated. The handle 27 of the wire clamp 8 is wrapped with a rubber insulating sleeve. The entire counterweight 30 is encapsulated in an integrally cast epoxy resin insulating shell. The wire tensioner 10 is installed away from the pole and other conductive parts. The rocker arm 23 of the wire tensioner 10 is wrapped with an insulating sleeve made of epoxy glass and coated with an insulating coating.

[0066] The support frame consisting of the support crossbar 2 and the support rod 6, the two fixing components 9 and the wire tensioner 10 are all modularly designed. The components can be quickly installed and disassembled on the pole 1 by bolts, lower hooks 20 and upper hooks 21.

[0067] Furthermore, this embodiment illustrates the characteristics of the live-line working conductor lifting device in terms of material selection, insulation design, modular structure, and load performance. The pole 1, support crossbar 2, and support rod 6 are all made of insulating epoxy glass, which is lightweight while also possessing high strength, high insulation, and weather resistance, effectively isolating leakage current. The connector 3, support base 4, and fixing component 9 are made of cast iron, ensuring the rigidity and durability of the structure. The first mounting base 5, second mounting base 7, wire clamp 8, conductor tensioner 10, and damper 29 are made of heat-treated aluminum alloy, which combines lightweight and high strength characteristics, facilitating transportation and installation.

[0068] In terms of insulation design, all parts that come into contact with the wires and the human body are insulated. The handle 27 of the wire clamp 8 is wrapped with a rubber insulating sleeve to prevent safety hazards caused by wire damage. The entire counterweight 30 is encapsulated in a one-piece cast epoxy resin insulating shell, which completely isolates the metal counterweight 30 from contact with the external electric field, ensuring its absolute insulation safety in a live environment, avoiding any possible risk of current leakage, and protecting the safety of operators. The rocker arm 23 of the wire tensioner 10 is covered with epoxy resin. The glass insulating sleeve is coated with an insulating layer to effectively prevent current leakage. This design not only improves the mechanical stability of the device but also takes into account electrical safety requirements, meeting the strict standards for live-line work in power distribution networks. The overall insulation performance of the device has passed the power frequency withstand voltage test. The leakage current under normal conditions is controlled at 5.0-5.8uA, and the leakage current after moisture is 5.6-10.2uA. In the rain test, there was no flashover, no sparks, and no breakdown. The surface withstand voltage reaches 95kV / 0.6m / 3min, meeting the strict standards for live-line work in power distribution networks.

[0069] The gasket in the wire clamp is made of polyurethane-nitrile rubber composite material, and its key performance indicators are shown in the table below:

[0070]

[0071] The pad is fixed by an embedded slot and adhesive to ensure that it will not fall off or shift. The pad is a detachable module and can be replaced individually when worn, without having to replace the entire wire clamp.

[0072] The key performance indicators of high viscosity silicone oil are shown in the table below:

[0073]

[0074] The high-viscosity silicone oil used is Dow Corning PMX-200 series high-viscosity silicone oil. This series of silicone oils is specially designed for damping and vibration reduction applications. It has a flat viscosity-temperature profile, excellent insulation and chemical inertness, and meets the safety standards for electrical operations.

[0075] In terms of modular design, the support frame composed of the support crossbar 2 and the support rod 6, the two sets of fixing components 9 and the wire tensioner 10 all adopt standardized interfaces, and can be quickly installed and disassembled through bolts, lower hook 20 and upper hook 21, which facilitates on-site assembly and maintenance.

[0076] In terms of rated load, the support frame has a rated load of 500 kg, each wire clamp 8 has a rated working load of 90 kg, the fixed component 9 has a maximum load of 450 kg, the wire tensioner 10 has a maximum load of 450 kg, the lifting device 18 has a rated load of 1.5 tons, and the insulation tape 19 has a maximum length of 2.7 m. These parameters ensure the reliability and safety of the device in various operating scenarios. By comprehensively optimizing the material, insulation, and structural design, the device improves the adaptability and efficiency of live-line work, reduces the frequency and duration of power outage maintenance, and significantly reduces the impact of power outages on users, thus having significant economic and social benefits.

[0077] Example 7: The mass of the counterweight must satisfy inertial stability and frequency avoidance requirements, and its design is based on the following formula: Where: m: mass of a single counterweight (kg), M_wind: wind load torque (N·m), L: wind load lever arm (m), the distance from the top of the pole to the support base is taken as L = 2.5 mL = 2.5m, g: gravitational acceleration (9.8 m / s²), r: distance from the center of mass of the counterweight to the axis of the pole (m), take r = 0.35 m;

[0078] The calculated mass of a single counterweight is m ≥ 5.2 kg, which is rounded to 6 kg. The total mass of the four sets of counterweights is 24 kg.

[0079] Frequency avoidance conditions: The first natural frequency f0 of the entire device (including the pole, support frame, and conductor) is 1.6 Hz according to finite element simulation. After the counterweight is added, the system frequency f should be far away from the common wind load frequency range (0.2-1.5 Hz). After adjustment, the system frequency is 2.1 Hz, which meets the vibration avoidance criterion of f / f0>1.3.

[0080] Damper spacing and structural dynamics matching:

[0081] Damper arrangement optimization:

[0082] Radial spacing: Four sets of dampers are evenly distributed around the circumference of the mast, with adjacent included angles of 90°;

[0083] Axial spacing: The center line of the damper cylinder is 300 mm away from the axis of the strut to ensure torque balance;

[0084] Installation height: The distance between the upper universal ball hinge of the damper and the bottom surface of the support seat is 200 mm, and the center distance between the lower counterweight block and the bottom surface of the support seat is 600 mm.

[0085] Coupling analysis of anti-sway components and fixing components:

[0086] The fixed components provide rigid constraints, while the anti-sway components provide damping and inertial stability, forming a coupled system of "rigid anchoring + flexible vibration suppression." Through ADAMS multibody dynamics simulation, the following conclusions are drawn:

[0087] The stiffness of the fixing components must be ≥1×10⁷ N / m, and the torque of the clamp bolts must be ≥60 N·m;

[0088] The damping coefficient of the anti-sway component is ζ=0.45, which is within the optimal damping range (0.4-0.7).

[0089] Working principle: The upper and lower fixing components 9 are used to fix the pole 1 to the pole. The fixing components 9 fit the pole through the arc-shaped mating part 13. The first wheel tensioner 14 tightens the chain 16 to achieve a tight grip. It can flexibly adapt to different pole diameters. The support crossbar 2 and support rod 6 at the top of the pole 1 form a triangular support frame to provide a stable load-bearing platform. The second mounting seats 7 at both ends of the support crossbar 2 can adapt to conductors with different spans. The wire clamps 8 on the connector 3 and the second mounting seats 7 can adapt to conductors with different diameters through the cooperation of the fixed clamp 25 and the movable connecting rod 26.

[0090] When it is necessary to lift the conductor, the operator shakes the rocker arm 23 of the conductor tensioner 10, and the power is transmitted to the lifting device 18 through the gear reducer 22 to tighten the insulating tape 19, thereby driving the entire pole 1 and support frame to rise through the connecting ring 24. The anti-sway component 11 can suppress the shaking of the device during the conductor lifting process, so as to achieve a smooth lifting of the conductor.

[0091] All key components of the entire device are made of insulating materials or have undergone insulation treatment to ensure safety during live-line work. The device can safely and efficiently complete conductor lifting and fixing operations in areas inaccessible to insulated bucket trucks, meeting the work requirements for replacing insulators and crossarms at ground potential.

[0092] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A new live wire line lifting device, characterized by: The utility model provides a kind of anti-swing support frame, including embrace pole (1), the top of the embrace pole (1) is fixedly installed with connecting piece (3), the middle part of the embrace pole (1) is fixedly installed with support seat (4) by bolt, the support seat (4) is vertically penetrated by embrace pole (1), the connecting piece (3) is penetrated by the support cross bar (2) being transversely arranged, the support cross bar (2) is symmetrically provided with two first mounting seat (5) with connecting piece (3) as axis, the side of the support seat (4) is fixedly connected with support rod (6), the end of the support rod (6) away from support seat (4) is fixedly connected with the lower surface of first mounting seat (5), the support cross bar (2) is formed firm triangle support frame with support rod (6) by support seat (4) and two first mounting seat (5), the two ends of the support cross bar (2) are fixedly installed with second mounting seat (7) by bolt respectively, the upper surface of the second mounting seat (7) and connecting piece (3) is fixedly installed with wire clamp (8), the lower surface of the second mounting seat (7) is also installed with wire hanger (28), the middle part of the embrace pole (1) is installed with anti-swing subassembly (11), anti-swing subassembly (11) is below support seat (4) and includes four groups of damper (29) and counterweight (30), damper (29) is circumferentially distributed around embrace pole (1) and is connected with counterweight (30) at the end of each damper (29), each damper (29) is composed of one cylinder (34) full of high viscosity silicon oil, damping piston (33), piston rod (32) and universal ball hinge (31), one end of cylinder (34) is sealed end, the other end is open end with internal thread and installs guide sealing cover, universal ball hinge (31) is fixedly installed in the sealed end of cylinder (34) and is connected with the bottom surface of support seat (4), damping piston (33) is in the inside of cylinder (34) and is fixedly connected with one end of piston rod (32), the outer surface of damping piston (33) is processed with circumferentially distributed axial through hole, as the damping passage that silicon oil passes, the center of the counterweight (30) is processed with internal thread blind hole and is connected with the other end of piston rod (32), the inside of counterweight (30) is processed with the closed magnetorheological fluid cavity (35), electromagnetic coil (36) is fixedly installed in the inside of magnetorheological fluid cavity (35), electromagnetic coil (36) is encapsulated in the special groove outside magnetorheological fluid cavity (35) wall and is fixed and heat-conducting insulation by high-temperature resistant epoxy resin filling, built-in inertia piston (37) divides magnetorheological fluid cavity (35) into two working cavities and is filled with magnetorheological fluid in magnetorheological fluid cavity (35).

2. A new type of live working conductor lifting device according to claim 1, characterized in that: The connecting piece (3) and the wire clamping device (8) arranged on the second mounting base (7) are composed of a fixed clamping block (25), a movable connecting rod (26) and a handle (27), the fixed clamping block (25) is designed as a U-shaped groove structure, the bottom of the fixed clamping block (25) is bolted to the upper surface of the second mounting base (7), one end of the fixed clamping block (25) is connected to the movable connecting rod (26) through a pin shaft, and a spring locking pin is arranged at the pin shaft connection position, the other end of the fixed clamping block (25) is provided with a groove matched with the movable connecting rod (26), the clamping surfaces on the inner sides of the fixed clamping block (25) and the movable connecting rod (26) are designed as bionic sawtooth structures, and the end of the movable connecting rod (26) away from the fixed clamping block (25) is provided as the handle (27), the movable connecting rod (26) is rotated along the pin shaft by pushing the handle (27), the clamping gap of the wire clamping device (8) is adjusted according to the wire diameter, and the inner sides of the fixed clamping block (25) and the movable connecting rod (26) are additionally provided with elastic composite material pads.

3. A new type of live working conductor line lifting device according to claim 1, characterized in that: Two groups of fixed components (9) are arranged on the side wall of the pole holding rod (1) below the support base (4) in a vertical arrangement. The fixed component (9) comprises a hoop (12), an arc-shaped matching part (13), a first wheel tightener (14), a rotating handle (15) and a chain (16). The hoop (12) is sleeved on the side wall of the pole holding rod (1) through bolts, the arc-shaped matching part (13) is in a trapezoidal shape, the narrow bottom end of the arc-shaped matching part (13) is fixedly connected to the outer wall surface of the hoop (12), the wide bottom end of the arc-shaped matching part (13) is inwardly recessed to form an arc shape matched with the electric pole, an anti-skid pad is arranged on the contact surface between the wide bottom end of the arc-shaped matching part (13) and the electric pole, the first wheel tightener (14) is arranged at one end of the wide bottom of the arc-shaped matching part (13), the rotating handle (15) is arranged at the end of the first wheel tightener (14) away from the arc-shaped matching part (13), the take-up end in the middle of the first wheel tightener (14) is connected to the chain (16), and the end of the chain (16) away from the first wheel tightener (14) is connected to the other end of the wide bottom of the arc-shaped matching part (13).

4. A new type of live working conductor line lifting device according to claim 3, characterized in that: The wire tightener (10) is arranged on the side surface of the lower part of the pole holding rod (1), is located between the bottom of the pole holding rod (1) and the fixed component (9) below, and is composed of a second wheel tightener (17) and a jack (18), the input end of the second wheel tightener (17) is connected with a rocker (23), the output end of the second wheel tightener (17) is connected with a gear reducer (22), the end of the gear reducer (22) away from the second wheel tightener (17) is connected with the jack (18), an insulating belt (19) is arranged in the inner ring of the jack (18), the starting end of the insulating belt (19) is fixedly installed in the inner ring of the jack (18), the terminal end of the insulating belt (19) is connected with a lower hook (20), and the upper hook (21) is fixedly installed on the top of the jack (18).

5. A new type of live working conductor line lifting device according to claim 4, characterized in that: The bottom of the pole holder (1) is fixedly provided with a connecting ring (24), the lower hook (20) of the jack (18) is connected with the connecting ring (24), and the lower surface of the connecting position between the hoop (12) and the arc-shaped matching part (13) in the lower fixing assembly (9) is connected with the upper hook (21) of the jack (18).

6. A new type of live working conductor line lifting device according to claim 4, characterized by: The pole holder (1), the support cross rod (2) and the support rod (6) are made of epoxy glass material, the connecting piece (3), the support base (4) and the fixing assembly (9) are made of cast iron material, the first mounting base (5), the second mounting base (7), the wire clamp (8), the wire tightener (10) and the damper (29) are made of heat-treated aluminum alloy material.

7. A new type of live working conductor line lifting device according to claim 4, characterized by: The pole holder (1), the support cross rod (2) and the support rod (6) are made of insulating material, the components in contact with the wire and the human body are also subjected to insulation treatment, the handle (27) of the wire clamp (8) is wrapped with a rubber insulation sleeve, the entire counterweight (30) is encapsulated in an integrally cast epoxy resin insulation shell, the installation position of the wire tightener (10) is away from the electric pole and other conductive parts, the rocker (23) of the wire tightener (10) is wrapped with an insulation sleeve made of epoxy glass material and coated with an insulation coating.

8. A new type of live working conductor line lifting device according to claim 4, characterized by: The support frame composed of the support cross rod (2) and the support rod (6), the two fixing assemblies (9) and the wire tightener (10) are modularly designed, and are quickly mounted and dismounted on the pole holder (1) through bolts, the lower hook (20) and the upper hook (21).

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