Movable type super B-type high-voltage grounding equipment

Abstract

The invention discloses a mobile super class-B high-voltage grounding device, and the device comprises a mobile bearing platform which comprises a walking mechanism and an arm support mechanism used for carrying out the high-altitude operation, and the arm support mechanism is provided with a telescopic arm; the torsional spring contact device is arranged on the telescopic arm and is used for being in contact with a static contact of a power failure line when the telescopic arm extends out; the arc extinguishing device can eliminate induced arc when the torsional spring contact device is in contact with the static contact; the arc extinguishing device is provided with a grounding wire I connected with a grounding grid and is used for guiding induced current of a power failure line into the ground; the torsion spring contact device and the arc extinguishing device are driven to get close to the static contact through the arm support mechanism, when the torsion spring contact device makes contact with the static contact, induction current can be guided into the ground, meanwhile, the arc extinguishing device can eliminate induction electric arc, and in cooperation with the insulation distance provided by the telescopic arm, the electric shock risk is effectively reduced before a worker hangs a second ground wire; the device can effectively protect workers, and is suitable for power failure lines with induction voltage of 85kV and below.

Description

Technical Field

[0001] This disclosure relates to the field of circuit maintenance technology, specifically to mobile Class B high-voltage grounding equipment. Background Technology

[0002] With the development of power construction and the continuous expansion of power grid capacity, in order to reduce the land occupied by transmission corridors, parallel overhead high-voltage transmission lines with double circuits and multiple circuits on the same tower are becoming increasingly common. In two or more overhead transmission lines arranged in parallel on the same tower or adjacent to each other, when one or more circuits are de-energized, electromagnetic induction and electrostatic induction will be generated between the adjacent energized lines, resulting in induced voltage and induced current on the de-energized line.

[0003] When a Class B grounding switch malfunctions or is under maintenance, an electrostatic induction voltage will be generated due to the capacitive voltage division between the operating line and the de-energized line, and between the de-energized line and the ground, because the two ends of the corresponding de-energized line are not grounded. Therefore, the de-energized line needs to be reliably grounded before any maintenance is performed on the equipment on it. Allowing workers to directly connect the grounding wire with an insulated rod by hand will generate a momentary high-voltage arc, posing a threat to personnel safety. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a mobile Class B high-voltage grounding device.

[0005] Firstly, this application provides a mobile Class B ultra-high voltage grounding device, including: A mobile support platform, comprising a traveling mechanism and a boom mechanism for performing high-altitude operations, wherein the boom mechanism is movably mounted on top of the traveling mechanism and has a telescopic boom; A torsion spring contact device is disposed on the side of the telescopic arm away from the traveling mechanism, and is used to abut against the stationary contact of the power outage line when the telescopic arm is extended. An arc-extinguishing device is disposed between the telescopic arm and the torsion spring contact device, and is used to eliminate the induced arc when the torsion spring contact device contacts the stationary contact. The arc-extinguishing device is equipped with a grounding wire, the end of which is away from the arc-extinguishing device and connected to the grounding grid. This grounding wire is used to conduct the induced current of the de-energized line to the ground when the torsion spring contact device contacts the stationary contact.

[0006] According to the technical solution provided in the embodiments of this application, the walking mechanism includes: The walking body is used to enable the overall movement of the equipment; A rotary table is rotatably mounted on top of the walking body to achieve 360° rotation.

[0007] According to the technical solution provided in the embodiments of this application, the boom mechanism includes: Mounting base, which is fixedly mounted on the top of the rotary table; The first adjusting arm has one end hinged to the mounting base and is pitched by the first adjusting cylinder. The second adjusting arm has one end hinged to the end of the first adjusting arm away from the rotary table, and pitch adjustment is achieved by the second adjusting cylinder. The telescopic arm is movably positioned inside the end of the second adjusting arm away from the first adjusting arm, and its extension and retraction are achieved through a third adjusting cylinder.

[0008] According to the technical solution provided in the embodiments of this application, an adjustment bracket is rotatably provided at the end of the telescopic arm away from the second adjusting arm, and the adjustment bracket is rotated and adjusted by a fourth adjusting cylinder; the arc extinguishing device is fixedly connected to the adjustment bracket on the side near the telescopic arm.

[0009] According to the technical solution provided in the embodiments of this application, the torsion spring contact device includes: The mounting bracket is fixedly connected to the side of the arc extinguishing device away from the telescopic arm, and a mounting shaft is fixedly provided on the mounting bracket; A rotating ring is rotatably sleeved on the outer wall of the mounting shaft, and a mounting plate is fixedly provided on the outer wall of the rotating ring; The moving contact is a spherical structure and is fixedly connected to the mounting plate via a contact rod. A torsion spring is sleeved on the outer wall of the mounting shaft, and both ends of the torsion spring are connected to the mounting bracket and the mounting plate, respectively.

[0010] According to the technical solution provided in the embodiments of this application, the mobile carrier platform further includes: The outrigger assembly includes at least four hydraulic outriggers, which are symmetrically arranged in pairs on both sides of the walking body.

[0011] According to the technical solution provided in the embodiments of this application, the mobile carrier platform further includes: A control panel is mounted on the walking body and is electrically connected to the walking body, the turntable, and the hydraulic outriggers.

[0012] According to the technical solution provided in the embodiments of this application, the mobile Class B high-voltage grounding device further includes: The remote control module is electrically connected to the first regulating cylinder, the second regulating cylinder, the third regulating cylinder, and the fourth regulating cylinder.

[0013] According to the technical solution provided in the embodiments of this application, the arc extinguishing device is provided with a switching switch. When the switching switch is closed, it is used to conduct the induced current of the power outage line to the grounding wire and finally to the ground; the switching switch and the remote control module are electrically connected.

[0014] According to the technical solution provided in the embodiments of this application, a current and voltage detection module is provided on the grounding wire, the current and voltage detection module is electrically connected to the remote control module, and the current and voltage detection module is used to detect the current and voltage of the grounding wire in real time and transmit a detection signal containing the current and voltage values ​​to the remote control module. The touch rod is equipped with a tilt sensor, which is electrically connected to the remote control module. The tilt sensor is used to detect the tilt angle of the touch rod in real time and transmit an angle signal containing the angle value to the remote control module.

[0015] In summary, this technical solution specifically discloses a mobile Class B high-voltage grounding device, including a mobile support platform, which includes a traveling mechanism and a boom mechanism for high-altitude operations. The boom mechanism is movably mounted on top of the traveling mechanism and has a telescopic boom. A torsion spring contact device is located on the side of the telescopic boom away from the traveling mechanism, and is used to abut against the stationary contact of the de-energized line when the telescopic boom is extended. An arc-extinguishing device is located between the telescopic boom and the torsion spring contact device, and is used to eliminate the induced arc when the torsion spring contact device contacts the stationary contact. A grounding wire is provided on the arc-extinguishing device, and the end of the grounding wire away from the arc-extinguishing device is connected to the grounding grid, and is used to conduct the induced current of the de-energized line to the ground when the torsion spring contact device contacts the stationary contact.

[0016] The boom mechanism brings the torsion spring contact device and the arc extinguishing device close to the stationary contact. When the torsion spring contact device contacts the stationary contact, it can conduct the induced current to the ground, thereby reducing the induced voltage. At the same time, the arc extinguishing device can eliminate the induced arc. Combined with the insulation distance provided by the telescopic boom, the risk of electric shock is effectively reduced before the worker connects the grounding wire, thus providing effective protection for the worker. Attached Figure Description

[0017] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a front view of a mobile Class B ultra-high voltage grounding device.

[0018] Figure 2 This is a schematic diagram of the traveling mechanism and the boom mechanism.

[0019] Figure 3 This is a front view of the torsion spring contact assembly.

[0020] Figure 4 This is a side view of the torsion spring contact device.

[0021] The following are the labeling elements in the diagram: 1. Traveling mechanism; 2. Boom mechanism; 3. Telescopic boom; 4. Torsion spring contact device; 5. Arc extinguishing device; 6. Grounding wire one; 7. Traveling main body; 8. Turntable; 9. Mounting base; 10. First adjusting arm; 11. First adjusting cylinder; 12. Second adjusting arm; 13. Second adjusting cylinder; 14. Adjusting bracket one; 15. Mounting bracket; 16. Rotary ring; 17. Mounting plate; 18. Moving contact; 19. Contact rod; 20. Torsion spring; 21. Hydraulic outrigger; 22. Control panel; 23. Adjusting bracket two. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] Example 1 Please refer to Figure 1 Mobile Class B high-voltage grounding equipment includes: The mobile support platform includes a traveling mechanism 1 and a boom mechanism 2 for performing high-altitude operations. The boom mechanism 2 is movably mounted on top of the traveling mechanism 1 and has a telescopic boom 3. Torsion spring contact device 4 is located on the side of the telescopic arm 3 away from the traveling mechanism 1, and is used to abut against the stationary contact of the power outage line when the telescopic arm 3 is extended. Arc extinguishing device 5 is disposed between telescopic arm 3 and torsion spring contact device 4, and is used to eliminate induced arc when torsion spring contact device 4 contacts stationary contact. The arc extinguishing device 5 is equipped with a grounding wire 6. The end of the grounding wire 6 away from the arc extinguishing device 5 is connected to the grounding grid. It is used to conduct the induced current of the de-energized line into the ground when the torsion spring contact device 4 contacts the stationary contact.

[0025] Specifically, the traveling mechanism 1 can move the entire equipment to the working area. The boom mechanism 2 moves the torsion spring contact device 4 and the arc extinguishing device 5, bringing them close to the stationary contact of the power outage line. Then, the telescopic arm 3 extends until the torsion spring contact device 4 contacts the stationary contact of the power outage line, thus achieving connection. The power outage line will generate electromagnetic induction with its adjacent live lines, resulting in induced voltage and induced current in the power outage line. The torsion spring contact device 4 contacts the stationary contact of the power outage line. At the same time, the arc extinguishing device 5 is equipped with a grounding wire 6, which is connected to the grounding grid. After the torsion spring contact device 4 contacts the stationary contact, the induced current will flow into the grounding grid along the grounding wire 6, thereby conducting the induced current to the ground and reducing the induced voltage, thus reducing the risk of electric shock.

[0026] When the torsion spring contact device 4 comes into contact with the stationary contact of the de-energized line, a momentary high-voltage arc will be generated. The arc extinguishing device 5 is connected to the torsion spring contact device 4 and can extinguish the arc instantly, further reducing the risk of electric shock.

[0027] It should be noted that both the walking mechanism 1 and the boom mechanism 2 are insulated objects.

[0028] Therefore, through the insulated walking mechanism 1 and boom mechanism 2, as well as the arc extinguishing device 5 and torsion spring contact device 4, the grounding operation of the induced current of the power outage line can be realized before the personnel connect the grounding wire 2, thereby reducing the induced voltage of the power outage line, reducing the risk of electric shock when connecting the grounding wire 2, extinguishing the induced arc, and further reducing the risk of electric shock by extending the working distance with the telescopic boom 3 which can extend the working distance.

[0029] Furthermore, such as Figure 1 and Figure 2 As shown, the walking mechanism includes: The walking body 7 is used to move the entire equipment. The rotary table 8 is rotatably mounted on top of the traveling body 7 to achieve 360° rotation.

[0030] Specifically, the walking body 7 can drive the movement of the entire equipment. Optionally, the walking body 7 is in the form of a tracked vehicle, which has excellent off-road capabilities and can adapt to complex ground environments. The turntable 8 is rotatably mounted on top of the traveling body 7, and can rotate 360° to drive the boom mechanism 2 to rotate, thereby adjusting the angle of the boom mechanism 2 so that the boom mechanism 2 can perform operations better.

[0031] Furthermore, the boom mechanism 2 includes: Mounting base 9 is fixedly installed on the top of rotary table 8; The first adjusting arm 10 is hinged to the mounting base 9 at one end and is pitched by the first adjusting cylinder 11. The second adjusting arm 12 is hinged at one end to the end of the first adjusting arm 10 away from the rotary table 8, and pitch adjustment is achieved through the second adjusting cylinder 13. The telescopic arm 3 is movably located inside the end of the second adjusting arm 12 away from the first adjusting arm 10, and its extension and retraction are achieved through the third adjusting cylinder.

[0032] Specifically, the mounting base 9 is fixedly installed on the top of the rotary table 8. One end of the first adjusting arm 10 is hinged to the mounting base 9, and pitch adjustment is achieved through the first adjusting cylinder 11. Specifically, one end of the first adjusting arm 10 is hinged to the mounting base 9, and the other end is fixedly connected to the adjusting bracket 23. The first adjusting cylinder 11 has a first telescopic end and a first fixed end. The first fixed end is hinged to the mounting base 9, and the first telescopic end is hinged to the adjusting bracket 23. Thus, by extending and retracting the first adjusting cylinder 11, the pitch of the first adjusting arm 10 can be driven, thereby achieving angle adjustment of the first adjusting arm 10. Optionally, the first adjusting cylinder 11 is a hydraulic cylinder.

[0033] One end of the second adjusting arm 12 is hinged to the end of the first adjusting arm 10 away from the rotary table 8, and pitch adjustment is achieved through the second adjusting cylinder 13. Specifically, one end of the second adjusting arm 12 is hinged to the second adjusting bracket 23, and the second adjusting cylinder 13 has a second telescopic end and a second fixed end. The second fixed end is hinged to the second adjusting bracket 23, and the second telescopic end is hinged to the second adjusting arm 12. Thus, by extending and retracting the second adjusting cylinder 13, the pitch of the second adjusting arm 12 can be driven, thereby achieving angle adjustment of the second adjusting arm 12. Optionally, the second adjusting cylinder 13 is a hydraulic cylinder.

[0034] The second adjusting arm 12 has an opening at one end away from the adjusting bracket 23, and its interior has a receiving cavity. The telescopic arm 3 is movably disposed within the receiving cavity and is extended and retracted by a third adjusting cylinder. Specifically, the third adjusting cylinder has a third telescopic end and a third fixed end. The third fixed end is fixedly connected to the inner wall of the receiving cavity away from the opening, and the third telescopic end is fixedly connected to the end of the telescopic arm 3 away from the opening. Thus, by extending and retracting the third adjusting cylinder, the telescopic arm 3 is driven to extend out of the opening or retract into the receiving cavity, thereby driving the torsion spring contact device 4 and the arc extinguishing device 5 to move, so that the torsion spring contact device 4 and the arc extinguishing device 5 are closer to or further away from the stationary contact of the de-energized line. At the same time, the telescopic arm 3 can extend the working distance and reduce the risk of electric shock. Optionally, the third adjusting cylinder is a hydraulic cylinder.

[0035] Furthermore, an adjustment bracket 14 is rotatably provided at the end of the telescopic arm 3 away from the second adjusting arm 12, and the adjustment bracket 14 is rotated and adjusted by the fourth adjusting cylinder; the arc extinguishing device 5 is fixedly connected to the adjustment bracket 14 on the side close to the telescopic arm 3.

[0036] Specifically, a connecting part is fixedly provided at the end of the telescopic arm 3 away from the second adjusting arm 12, and an adjusting bracket 14 is rotatably connected to the connecting part. The side of the adjusting bracket 14 away from the connecting part is fixedly connected to the arc extinguishing device 5. The fourth adjusting cylinder has a fourth telescopic end and a fourth fixed end. The fourth fixed end is hinged to the connecting part, and the fourth telescopic end is hinged to the adjusting bracket 14. Thus, by extending and retracting the fourth adjusting cylinder, the adjusting bracket 14 can be rotated to realize the angle adjustment of the adjusting bracket 14, thereby realizing the angle adjustment of the torsion spring contact device 4 and the arc extinguishing device 5. Optionally, the fourth adjusting cylinder is a hydraulic cylinder.

[0037] Furthermore, such as Figure 3 and Figure 4 As shown, the torsion spring contact device 4 includes: Mounting bracket 15 is fixedly connected to the side of the arc extinguishing device 5 away from the telescopic arm 3, and a mounting shaft is fixedly installed on the mounting bracket 15. Rotary ring 16 is rotatably sleeved on the outer wall of the mounting shaft, and a mounting plate 17 is fixedly provided on the outer wall of the rotating ring 16. The moving contact 18 has a spherical structure and is fixedly connected to the mounting plate 17 via the contact rod 19. Torsion spring 20 is sleeved on the outer wall of the mounting shaft, and both ends of torsion spring 20 are connected to mounting bracket 15 and mounting plate 17 respectively.

[0038] Specifically, the mounting bracket 15 is fixedly connected to the side of the arc extinguishing device 5 away from the telescopic arm 3. The mounting bracket 15 has a mounting shaft, and the rotating ring 16 is rotatably sleeved on the outer wall of the mounting shaft. The outer wall of the rotating ring 16 is fixedly provided with a mounting plate 17. The moving contact 18 is fixedly connected to the mounting plate 17 through the contact rod 19. Alternatively, it can be connected by bolts. The moving contact 18 has a spherical structure. The moving contact 18 and the contact rod 19 can be an integral structure. The torsion spring 20 is sleeved on the outer wall of the mounting shaft, and the two ends of the torsion spring 20 are respectively connected to the mounting bracket 15 and the mounting plate 17. Through the torsion spring contact device 4 of this structure, the third adjusting cylinder is driven to extend, which in turn drives the torsion spring contact device 4 and the arc extinguishing device 5 to approach the stationary contact of the power outage line. After the moving contact 18 contacts the stationary contact, it continues to move, so that the torsion spring 20 can generate elastic force. The elastic force can make the moving contact 18 abut against the stationary contact, realizing a reliable and stable connection between the moving contact 18 and the stationary contact, and preventing the moving contact 18 and the stationary contact from separating during operation and causing an accident.

[0039] The torque range of the torsion spring contact device 4 is preferably 6 Nm to 10 Nm, and the swing angle is 60° to 105°. This design enables the moving contact 15 to adaptively align and closely fit the stationary contact under the elastic force of the torsion spring.

[0040] It should be noted that, as Figure 4 As shown, when the moving contact 18 is not in contact with the stationary contact, the contact rod 19 is in an inclined state, and its length direction is perpendicular to the stationary contact. Figure 4 A preset angle α is formed between the moving contact 18 and the stationary contact 20. The preset angle α can be 60°, and the opening of the preset angle faces the stationary contact. Therefore, after the moving contact 18 contacts the stationary contact, as the torsion spring contact device 4 continues to move, the moving contact 18 stops moving due to the obstruction of the stationary contact, while the mounting bracket 15 continues to move. As a result, the contact rod 19 can rotate around the mounting axis, thereby causing the torsion spring 20 to be subjected to force. Consequently, the torsion spring 20 generates elastic force. Under the action of elastic force, the torsion spring 20 has a tendency to return to its original position. Because of the obstruction of the stationary contact, the moving contact 18 will abut against the stationary contact, thus achieving a reliable and stable connection between the moving contact 18 and the stationary contact.

[0041] The maximum tilt angle of the contact rod 19 is b, which is 105°.

[0042] An angle sensor is installed on the contact rod 19 to detect the tilt angle of the contact rod 19 in real time.

[0043] Furthermore, the mobile carrier platform also includes: The outrigger assembly includes at least four hydraulic outriggers 21, which are symmetrically arranged in pairs on both sides of the walking body 7.

[0044] Specifically, to ensure the stability of the equipment during operation, the mobile support platform is also equipped with outrigger assemblies; the outrigger assemblies include at least four hydraulic outriggers 21, arranged symmetrically in pairs on both sides of the traveling body 7. After the traveling body 7 moves the equipment to the work area, the hydraulic outriggers 21 extend and support the ground, lifting and stabilizing the equipment to prevent it from tipping over due to the movement of the boom mechanism 2.

[0045] Furthermore, the mobile carrier platform also includes: Control panel 22 is mounted on the traveling body 7 and is electrically connected to the traveling body 7, the turntable 8, and the hydraulic outriggers 21.

[0046] Specifically, the control panel 22 is installed on the traveling body 7, and the control panel 22 is electrically connected to the traveling body 7, the turntable 8, and the hydraulic outriggers 21. The operator can control the traveling body 7 through the control panel 22 to realize the movement and stopping of the entire equipment, move the entire equipment to the work area, and then drive the hydraulic outriggers 21 through the control panel 22 to extend the hydraulic outriggers 21 and support them on the ground, lift the equipment and stabilize it. After that, drive the turntable 8 through the control panel 22 to adjust the angle of the boom mechanism 2, thereby adjusting the position of the torsion spring contact device 4.

[0047] Furthermore, the mobile Class B ultra-high voltage grounding equipment also includes: The remote control module is electrically connected to the first regulating cylinder 11, the second regulating cylinder 13, the third regulating cylinder, and the fourth regulating cylinder.

[0048] Specifically, after the operator moves the equipment to the work area and lifts and secures it using the hydraulic outriggers 21, and drives the rotary table 8 to rotate to adjust the position of the torsion spring contact device 4, the operator moves away from the work area to a safe distance. Then, using the remote control module, the operator adjusts the first adjusting cylinder 11, the second adjusting cylinder 13, the third adjusting cylinder, and the fourth adjusting cylinder, ultimately ensuring that the moving contact 18 stably contacts the stationary contact. This grounds the induced current on the power outage line, reduces the induced voltage, and extinguishes the arc, thereby reducing the risk of electric shock. After the equipment completes its arc-extinguishing and low-potential functions, the second grounding wire needs to be manually connected. Afterward, the equipment can be retrieved using the remote control module and control panel 22.

[0049] The tilt sensor and the remote control module are electrically connected. The operator adjusts the boom mechanism 2 through the remote control module, and then controls the third adjusting cylinder to extend the telescopic boom 3. When the moving contact 18 contacts the stationary contact, the telescopic boom 3 continues to extend to ensure stable contact. The tilt sensor detects the tilt angle of the contact rod 19 in real time and transmits the angle signal containing the angle value to the remote control module. The operator can directly observe the angle value of the contact rod 19. When the angle value is between 60° and 105°, it indicates that the moving contact 18 is abutting against the stationary contact under the elastic force of the torsion spring 20.

[0050] Furthermore, the arc extinguishing device 5 is equipped with a switching switch. When the switching switch is closed, it is used to conduct the induced current of the de-energized line to the grounding wire 6 and finally to the ground. The switching switch is electrically connected to the remote control module.

[0051] Specifically, grounding wire 6 is installed on arc extinguishing device 5. When the staff drives the torsion spring contact device 4 to contact the stationary contact of the power outage line through the remote control module, the switch is closed through the remote control module. The induced current of the power outage line can be conducted to grounding wire 6 and finally conducted to the ground. Through remote control, the risk of electric shock can be further reduced.

[0052] A current and voltage detection module is installed on grounding wire 6. The current and voltage detection module can detect the current and voltage values ​​flowing through grounding wire 6 in real time. The current and voltage detection module is electrically connected to the remote control module and can transmit the detection signal containing the current and voltage values ​​to the remote control module. The staff can directly observe the current and voltage values ​​on grounding wire 6 and judge the induced potential on the power outage line based on this, thereby determining whether the power outage line is in a safe contact state, providing a direct and quantitative decision basis for the subsequent manual connection of grounding wire 2.

[0053] It should be noted that a vision device is provided at the top of the end of the telescopic arm 3 away from the second adjusting arm 12. The vision device has a lens that faces the torsion spring contact device 4. The vision device is electrically connected to the remote control module and can transmit the camera image to the remote control module in real time. Thus, the operator can control the first adjusting cylinder 11, the second adjusting cylinder 13, the third adjusting cylinder, and the fourth adjusting cylinder according to the camera image, so that the torsion spring contact device 4 is aligned with the stationary contact and the moving contact 18 is abutting against the stationary contact according to the angle value.

[0054] Working principle: After a power outage, the affected line needs to be inspected and repaired.

[0055] Preparation phase: The staff moves the equipment to the work area through the control panel 22, and then drives the hydraulic outriggers 21 through the control panel 22 to lift and stably support the equipment. After driving the rotary table 8 to rotate and adjust the position of the torsion spring contact device 4, the staff moves away from the work area and retreats to a safe distance. Operation phase: The operator controls the boom mechanism 2 through the remote control module. First, the second adjusting cylinder 13 is driven to extend and the angle of the second adjusting arm 12 is adjusted. Then, the first adjusting cylinder 11 is driven to extend and the angle of the first adjusting arm 10 is adjusted. Then, the fourth adjusting cylinder is driven to extend and the angle of the adjusting bracket 14 is adjusted, thereby realizing the angle adjustment of the torsion spring contact device 4 and the arc extinguishing device 5, so that the moving contact 18 is aligned with the stationary contact of the power outage line. Then, the third adjusting cylinder is driven to extend and the telescopic arm 3 extends, which drives the torsion spring contact device 4 and the arc extinguishing device 5 to approach the stationary contact, so that the moving contact 18 is accurately aligned with and reliably contacts the stationary contact on the power outage line. When the moving contact 18 contacts the stationary contact, the switch is closed via the remote control module. The induced charge and induced current on the power outage line are conducted into the grounding wire 6 through the torsion spring contact device 4. The induced charge and induced current can be conducted into the ground, thereby quickly lowering the potential of the power outage line to a safe range. After the potential is lowered, the staff can safely approach the power outage line and hang multiple sets of grounding wires 2 on it in sections to form a reliable low-impedance grounding path and continuously discharge the induced current.

[0056] After confirming that the grounding wire 2 is reliably connected, the staff used the remote control module again to drive the third, fourth, first, and second adjusting cylinders 11 and 13 to retract, thereby separating the torsion spring contact device 4 from the stationary contact and retracting the boom mechanism 2 in sequence. Finally, the hydraulic outriggers 21 were retracted through the control panel 22, and the equipment was driven away from the work area.

[0057] After the maintenance of the power outage line is completed, the power outage line is switched on to restore normal power, and the grounding wire can be removed. This mobile Class B high-voltage grounding equipment is suitable for power outage lines with induced voltage of 85kV and below.

[0058] It should be noted that before manually removing grounding wire two, a discharge operation needs to be performed on grounding wire two.

[0059] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A mobile Class B ultra-high voltage grounding device, characterized in that, include: A mobile carrying platform, the mobile carrying platform including a walking mechanism (1) and a boom mechanism (2) for performing high-altitude operations, the boom mechanism (2) being movably mounted on top of the walking mechanism (1), the boom mechanism (2) having a telescopic boom (3). Torsion spring contact device (4), the torsion spring contact device (4) is disposed on the side of the telescopic arm (3) away from the walking mechanism (1), and is used to abut against the stationary contact of the power outage line when the telescopic arm (3) is extended; Arc extinguishing device (5), which is disposed between the telescopic arm (3) and the torsion spring contact device (4), is used to eliminate induced arc when the torsion spring contact device (4) contacts the stationary contact. The arc extinguishing device (5) is provided with a grounding wire (6). The end of the grounding wire (6) away from the arc extinguishing device (5) is connected to the grounding grid and is used to conduct the induced current of the power outage line into the ground when the torsion spring contact device (4) contacts the stationary contact.

2. The mobile Class B high-voltage grounding device according to claim 1, characterized in that, The walking mechanism includes: The walking body (7) is used to realize the movement of the entire equipment; A rotary table (8) is rotatably mounted on the top of the walking body (7) to achieve 360° rotation.

3. The mobile Class B high-voltage grounding device according to claim 2, characterized in that, The boom mechanism (2) includes: Mounting base (9), which is fixedly mounted on the top of the rotary table (8); The first adjusting arm (10) is hinged at one end to the mounting base (9) and pitch adjustment is achieved through the first adjusting cylinder (11); The second adjusting arm (12) is hinged at one end to the end of the first adjusting arm (10) away from the rotary table (8), and pitch adjustment is achieved through the second adjusting cylinder (13); The telescopic arm (3) is movably disposed inside the end of the second adjusting arm (12) away from the first adjusting arm (10), and is extended and retracted by the third adjusting cylinder.

4. The mobile Class B high-voltage grounding device according to claim 3, characterized in that, The telescopic arm (3) is rotatably provided with an adjustment bracket (14) at one end away from the second adjustment arm (12). The adjustment bracket (14) is rotated and adjusted by a fourth adjustment cylinder. The arc extinguishing device (5) is fixedly connected to the adjustment bracket (14) on the side close to the telescopic arm (3).

5. The mobile Class B high-voltage grounding device according to claim 3, characterized in that, The torsion spring contact device (4) includes: Mounting bracket (15), the mounting bracket (15) and the arc extinguishing device (5) are fixedly connected on the side away from the telescopic arm (3), and a mounting shaft is fixedly provided on the mounting bracket (15); Rotary ring (16), which is rotatably sleeved on the outer wall of the mounting shaft, and a mounting plate (17) is fixedly provided on the outer wall of the rotating ring (16). The moving contact (18) is a spherical structure and is fixedly connected to the mounting plate (17) by a contact rod (19). Torsion spring (20) is sleeved on the outer wall of the mounting shaft. Both ends of the torsion spring (20) are connected to the mounting bracket (15) and the mounting plate (17), respectively.

6. The mobile Class B ultra-high voltage grounding device according to claim 2, characterized in that, The mobile carrier platform also includes: The outrigger assembly includes at least four hydraulic outriggers (21), which are symmetrically arranged in pairs on both sides of the walking body (7).

7. The mobile Class B high-voltage grounding device according to claim 6, characterized in that, The mobile carrier platform also includes: Control panel (22) is mounted on the walking body (7) and is electrically connected to the walking body (7), the turntable (8) and the hydraulic outriggers (21).

8. The mobile Class B high-voltage grounding device according to claim 5, characterized in that, The mobile Class B high-voltage grounding equipment also includes: The remote control module is electrically connected to the first regulating cylinder (11), the second regulating cylinder (13), the third regulating cylinder, and the fourth regulating cylinder.

9. The mobile Class B ultra-high voltage grounding device according to claim 8, characterized in that, The arc extinguishing device (5) is equipped with a switch. When the switch is closed, it is used to conduct the induced current of the power outage line to the grounding wire (6) and finally to the ground. The switch is electrically connected to the remote control module.

10. The mobile Class B high-voltage grounding device according to claim 8, characterized in that, A current and voltage detection module is provided on the grounding wire (6). The current and voltage detection module is electrically connected to the remote control module. The current and voltage detection module is used to detect the current and voltage of the grounding wire (6) in real time and transmit the detection signal containing the current and voltage values ​​to the remote control module. An angle sensor is provided on the touch rod (19). The angle sensor is electrically connected to the remote control module and is used to detect the tilt angle of the touch rod (19) in real time and transmit an angle signal containing the angle value to the remote control module.

Images