Portable power shorting ground line attaching and detaching device and attaching and detaching apparatus

Abstract

The application discloses a portable power short-circuit grounding wire mounting and dismounting clamping device and mounting and dismounting equipment, and belongs to the technical field of power maintenance equipment. The clamping device comprises at least one clamping module. The clamping module comprises a limiting mechanism mounted on an insulating operating rod of the portable power short-circuit grounding wire and a clamping unit for clamping the insulating operating rod. The clamping unit is provided with an elastic clamping assembly and clamps the insulating operating rod through the elastic clamping assembly. The limiting mechanism is used for limiting the elastic clamping assembly to prevent the elastic clamping assembly from moving axially along the insulating operating rod. When the axial stress of the insulating operating rod exceeds a set value, the elastic clamping assembly can move axially along the insulating operating rod and pass through the limiting mechanism. The mounting and dismounting equipment comprises a base plate, a mechanical arm mounted on the base plate and the portable power short-circuit grounding wire mounting and dismounting clamping device mounted on the mechanical arm. The application can avoid damage caused by hard pulling of equipment, and improve the safety, reliability and fault tolerance of automatic mounting and dismounting operation.

Description

Technical Field

[0001] This invention relates to the field of power maintenance equipment technology, specifically to a portable clamping device for installing and removing power short-circuit grounding wires and an installation and removal device including the clamping device. Background Technology

[0002] Portable power short-circuit grounding wires are core equipment for ensuring personal safety during power maintenance operations. Their function is to establish a temporary metallic path between de-energized equipment and the ground, preventing injury to personnel from sudden power surges or induced current. Portable power short-circuit grounding wires are typically attached to jumper conductors or equipment conductors via specialized hooks. The reliability of their structure and ease of operation directly affect the overall safety of the operation.

[0003] The structure of a common portable power short-circuit grounding wire mainly includes a metal hook (usually U-shaped), an insulated operating rod, and two clamping mechanisms. The metal hook, as the supporting body, faces downwards to accommodate the conductor. The two clamping mechanisms are symmetrically installed inside the metal hook and can rotate around a pivot under the action of a swing block or spring plunger, achieving clamping and releasing of the conductor. The insulated operating rod is connected to the metal hook for hand operation by the operator. Most portable power short-circuit grounding wires also typically have a locking rod linkage mechanism to achieve a "fall-proof" locking function. During connection, the operator holds the insulated operating rod and aligns the metal hook with the conductor from top to bottom, allowing the conductor to enter the opening of the metal hook and pushing the clamping mechanism to open. Once the conductor reaches the predetermined position, the clamping mechanism returns to its original position under the action of spring force, completing the connection. During disassembly, the operator uses the insulated operating rod to push the metal hook upwards, unlocking the locking rod linkage mechanism and allowing the clamping mechanism to open against the spring force, thus releasing the metal hook from above the conductor.

[0004] Traditional grounding wire connection work relies entirely on manual operation. Because the copper wire of the grounding wire is relatively heavy (statistically, a 500kV equipment grounding wire weighs approximately 20kg, and a 220V equipment grounding wire weighs approximately 11kg), and the installation location is usually high, it is difficult for operators to quickly and accurately deliver the metal hook to the target location while holding a heavy insulated operating rod. This is especially difficult for shorter operators with less strength. Furthermore, if the operator fails to effectively control the center of gravity of the grounding wire, the metal hook may collide with nearby porcelain support insulators, causing equipment damage.

[0005] To improve operational efficiency and automation, various specialized devices for automatically loading and unloading portable power short-circuit grounding wires have emerged in recent years. These devices are typically equipped with robotic arms and gripping mechanisms. The gripper mechanism grasps the insulating operating rod of the portable power short-circuit grounding wire, simulating manual operation to complete the connection and disconnection. Existing automated loading and unloading equipment generally adopts conventional gripper-type clamping mechanisms (for example, a robot device for automatically loading and unloading grounding wires in substations disclosed in Chinese invention patent application CN114709636A), relying on the radial clamping force of the grippers to fix the insulating operating rod, and then the robotic arm drives it to push it up and down and adjust the angle.

[0006] However, practical applications show that existing automated loading and unloading equipment carries the risk of damage from forced pulling during the attachment and disassembly processes. In manual-assisted operation mode, when the operator guides the robotic arm downwards with the insulated operating rod to attach the grounding wire, if the hook has already attached the jumper wire, and the operator fails to stop the downward movement in time due to inaccurate observation or misoperation, the hook will forcibly pull the wire downwards, potentially damaging the grounding wire or even damaging the substation equipment (e.g., causing the porcelain support insulator to loosen or fall off the support base), resulting in a safety accident. When removing the grounding wire, the robotic arm moves the insulated operating rod upwards. If the locking rod linkage mechanism or other components are deformed (e.g., due to the grounding wire swaying in strong winds causing component deformation), or if debris obstructs the hook, preventing it from properly disengaging from the wire, the grounding wire may also be forcibly pulled and damaged, or even the substation equipment may be damaged. When the equipment operates in a fully automated program, due to the lack of an effective feedback mechanism, the robotic arm continues to move according to the preset stroke and cannot detect abnormalities, also leading to the aforementioned problems. In addition, during the connection and disconnection process, if the direction or angle of movement of the insulating operating rod of the automatic loading and unloading equipment deviates from that of the wire due to accuracy or movement error, movement interference may occur, which may also lead to the risk of forced pulling. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a portable clamping device and equipment for installing and removing power short-circuit grounding wires that can avoid damage to equipment by pulling it hard and improve the safety, reliability and fault tolerance of automated installation and removal operations.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A clamping device for assembling and disassembling a portable power short-circuit grounding wire includes at least one clamping module. The clamping module includes a limiting mechanism mounted on an insulating operating rod of the portable power short-circuit grounding wire and a clamping unit for clamping the insulating operating rod. The clamping unit is provided with an elastic clamping component and clamps the insulating operating rod through the elastic clamping component. The limiting mechanism is used to limit the elastic clamping component to prevent the elastic clamping component from moving axially along the insulating operating rod. When the axial force on the insulating operating rod exceeds a set value, the elastic clamping component can move axially along the insulating operating rod and pass over the limiting mechanism.

[0009] As a further improvement to the above technical solution: The clamping module includes a limiting mechanism, and the clamping unit includes two sets of elastic clamping components, which are respectively disposed on both sides of the limiting mechanism.

[0010] The clamping module includes two limiting mechanisms, and the clamping unit includes a set of elastic clamping components, with the two limiting mechanisms located on both sides of the set of elastic clamping components.

[0011] The elastic clamping assembly includes a mounting base, two clamping seats, and a clamping and releasing driving mechanism. The clamping and releasing driving mechanism is connected to the two clamping seats and drives the two clamping seats to switch between a clamping state and a releasing state. Each clamping seat is provided with an elastic clamping mechanism for elastically clamping the insulating operating rod. When the two clamping seats are in the clamping state, the insulating operating rod is clamped by the combined action of the elastic clamping mechanisms of the two clamping seats, or by the combined action of the elastic clamping mechanisms of the two clamping seats and the mounting base.

[0012] The clamping seat is hinged to the mounting base and switches between the clamping and releasing states by swinging around the hinge axis.

[0013] The elastic clamping assembly is provided with a swing angle limiting mechanism, which limits the swing angle of the two clamping seats when they are in the clamping state, so as to provide space for the elastic clamping mechanism to pass over the limiting member.

[0014] The swing angle limiting mechanism includes a first limiting part disposed on one clamping seat and a second limiting part disposed on another clamping seat. When the two clamping seats perform clamping actions, the first limiting part and the second limiting part abut against each other.

[0015] The clamping drive mechanism includes a motor mounted on a mounting base. The motor is connected to two clamping seats via a gear transmission mechanism or a belt transmission mechanism to drive the two clamping seats to switch between a clamping state and a releasing state.

[0016] The elastic clamping mechanism includes a clamping member and a spring. The clamping member is hinged to a clamping seat and can swing about the hinge axis to clamp and release the insulating operating rod when the clamping seat is in the clamping state. The spring is connected to the clamping member and provides elastic force to force the clamping member to swing in the direction of clamping the insulating operating rod.

[0017] The elastic clamping mechanism includes multiple spring plungers, which are mounted on a clamping seat and elastically clamp the insulating operating rod when the clamping seat is in a clamping state.

[0018] The limiting mechanism includes a limiting member installed on the insulating operating rod. The limiting member and / or the elastic clamping mechanism are provided with a guide slope or curved surface to force the elastic clamping mechanism to open when the axial force on the insulating operating rod exceeds a set value, so that the elastic clamping mechanism passes over the limiting member.

[0019] The limiting component is a ring-shaped part sleeved and installed on the outer periphery of the insulating operating rod.

[0020] The annular component is detachably mounted on the insulating operating rod via a detachable connection mechanism. The detachable connection mechanism includes a plurality of locking screws, which are threadedly connected to the annular component and can be tightened and loosened from the insulating operating rod by screwing.

[0021] An assembly / disassembly device includes a chassis, a robotic arm mounted on the chassis, and a clamping device mounted on the robotic arm, wherein the clamping device is the aforementioned clamping device for assembling / disassembling a portable power short-circuit grounding wire.

[0022] Compared with the prior art, the advantages of the present invention are as follows: The portable clamping device for installing and removing power short-circuit grounding wires of the present invention, through the cooperation of a limiting mechanism and an elastic clamping component, ensures that the elastic clamping component can stably and reliably clamp the insulating operating rod during normal installation or removal operations. This ensures that the pushing or pulling force of the installation or removal equipment can be effectively transmitted to the insulating operating rod, thereby driving the portable power short-circuit grounding wire to complete the clamping or releasing action on the conductor. When the axial force abnormally increases due to hook jamming, angle deviation, or misoperation, the axial operating force will exceed the preset safety threshold. At this time, the elastic clamping component will slide along the axial direction of the insulating operating rod and pass over the limiting mechanism, thereby effectively preventing damage to the grounding wire and power equipment from forced pulling. This portable clamping device for installing and removing power short-circuit grounding wires achieves overload protection with a purely mechanical structure, without relying on complex force sensors and feedback control systems. It can provide reliable safety protection in both manual assistance and fully automatic operation modes, significantly improving the fault tolerance and equipment safety of automated installation and removal operations.

[0023] The device for installing and removing the portable power short-circuit grounding wire of the present invention also has the advantages of the portable power short-circuit grounding wire clamping device. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the clamping device in Example 1.

[0025] Figure 2 This is a top view of the clamping device in Example 1.

[0026] Figure 3 This is a schematic diagram of the installation structure of the limiting component in Example 1.

[0027] Figure 4 This is a partial three-dimensional structural diagram of the clamping device in Example 2.

[0028] Figure 5 This is a partial three-dimensional structural diagram of the clamping device in Example 3.

[0029] Figure 6 This is a schematic diagram of the installation structure of the clamping component in Example 3.

[0030] Figure 7 This is a three-dimensional structural diagram of the assembly and disassembly equipment in Example 4.

[0031] Legend: 1. Mounting base; 2. Clamping base; 21. First limiting part; 22. Second limiting part; 3. Clamping drive mechanism; 31. Motor; 4. Elastic clamping mechanism; 41. Clamping component; 42. Spring; 43. Spring plunger; 5. Limiting component; 51. Locking screw; 100. Insulated operating rod; 200. Chassis; 300. Robotic arm. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Example 1 like Figure 1 and Figure 2As shown, the portable power short-circuit grounding wire clamping device of this embodiment includes a clamping module. The clamping module includes a limiting mechanism mounted on the insulating operating rod 100 of the portable power short-circuit grounding wire and a clamping unit for clamping the insulating operating rod 100. The clamping unit is provided with an elastic clamping component and clamps the insulating operating rod 100 through the elastic clamping component. The limiting mechanism is used to limit the elastic clamping component to prevent the elastic clamping component from moving along the axial direction of the insulating operating rod 100. When the axial force on the insulating operating rod 100 exceeds a set value, the elastic clamping component can move along the axial direction of the insulating operating rod 100 and pass over the limiting mechanism. By setting the limiting mechanism and the elastic clamping component together, the portable power short-circuit grounding wire clamping device can stably and reliably clamp the insulating operating rod 100 during normal connection or disconnection operations, ensuring that the pushing or pulling force of the connection or disconnection equipment can be effectively transmitted to the insulating operating rod 100, thereby driving the portable power short-circuit grounding wire to complete the clamping or releasing action of the conductor. When the axial force increases abnormally due to hook jamming, angle deviation, or misoperation, the axial operating force will exceed the preset safety threshold. At this time, the elastic clamping component will slide along the axial direction of the insulating operating rod 100 and pass the limit mechanism, thereby effectively preventing damage to the grounding wire and power equipment from forced pulling. This portable clamping device for installing and removing power short-circuit grounding wires achieves overload protection with a purely mechanical structure. It does not rely on complex force sensors and feedback control systems, and can provide reliable safety protection in both manual assistance and fully automatic operation modes, significantly improving the fault tolerance and equipment safety of automated installation and removal operations.

[0034] In this embodiment, the clamping module includes a limiting mechanism, and the clamping unit includes two sets of elastic clamping components, which are respectively disposed on both sides of the limiting mechanism. The two sets of elastic clamping components are distributed on the upper and lower sides of a single limiting mechanism. When pushing downward to perform a wire hanging operation, the upper elastic clamping component abuts against the upper end of the limiting mechanism to transmit the pushing force; when pulling upward to perform a wire removal operation, the lower elastic clamping component abuts against the lower end of the limiting mechanism to transmit the pulling force, thereby achieving bidirectional overload protection. Different overload thresholds can be set for the pushing force and the pulling force respectively to adapt to the different resistance characteristics under the two working conditions of wire hanging and wire removal.

[0035] In this embodiment, the elastic clamping assembly includes a mounting base 1, two clamping seats 2, and a clamping and releasing drive mechanism 3. The clamping and releasing drive mechanism 3 is connected to the two clamping seats 2 and drives the two clamping seats 2 to switch between a clamping state and a releasing state. Each clamping seat 2 is provided with an elastic clamping mechanism 4 for elastically clamping the insulating operating rod 100. When the two clamping seats 2 are in the clamping state, the elastic clamping mechanisms 4 of the two clamping seats 2 and the mounting base 1 work together to clamp the insulating operating rod 100. The clamping and releasing drive mechanism 3 is responsible for active "opening / closing" control, while the elastic clamping mechanism 4 is responsible for passive "flexible clamping" and "overload response," achieving functional decoupling, clear control logic, and reliable operation. In other embodiments, the elastic clamping mechanisms 4 of the two clamping seats 2 can also work together to clamp the insulating operating rod 100.

[0036] In this embodiment, the clamping seat 2 is hinged to the mounting base 1 and switches between the clamping and releasing states by swinging around the hinge axis. The clamping seat 2 adopts a swing-type opening and closing structure, whose movement trajectory is simple and reliable, easy to control precisely by standard drive components such as motors and cylinders, and not prone to jamming. When the clamping seat 2 swings to close, its elastic clamping mechanism 4 can approach the insulating operating rod 100 with an arc trajectory, forming an envelope on the circumferential surface of the insulating operating rod 100, which has a certain self-centering ability and can compensate for the slight positional deviation of the insulating operating rod 100. In other embodiments, the clamping seat 2 can also adopt other mounting structures, as long as it can switch between the clamping and releasing states, such as using a cylinder-driven reciprocating translation method.

[0037] In this embodiment, the elastic clamping assembly is equipped with a swing angle limiting mechanism. This mechanism limits the swing angle of the two clamping seats 2 when they are in the clamping state, providing space for the elastic clamping mechanism 4 to pass over the limiting member 5. Specifically, if the clamping seats 2 close without restriction, the elastic clamping mechanism 4 may be tightly squeezed by the clamping seats 2 and the insulating operating rod 100, losing its radial retraction freedom. When an axial overload requires the elastic clamping mechanism 4 to open, if it is locked, it cannot open, causing the overload protection to fail. By setting the swing angle limiting mechanism, it is ensured that the elastic clamping mechanism 4 is always in a critical state of "pre-compression but not locked" when the clamping seats 2 are in the clamping state, providing the necessary movement space and deformation margin for it to open smoothly and pass over the limiting member 5 during overload, thereby ensuring the reliable triggering of the overload protection function.

[0038] In this embodiment, the swing angle limiting mechanism includes a first limiting part 21 disposed on one clamping seat 2 and a second limiting part 22 disposed on the other clamping seat 2. When the two clamping seats 2 perform clamping actions, the first limiting part 21 and the second limiting part 22 abut against each other. The first limiting part 21 and the second limiting part 22 are integrally formed during the machining of the clamping seats 2, eliminating the need for additional stops, screws, or sensors, simplifying the assembly process, reducing potential failure points, and resulting in a simple structure and low cost. Furthermore, after the two limiting parts abut against each other, the limiting parts on the two clamping seats 2 directly and rigidly contact each other to form a limit, enhancing the rigidity of the entire clamping system and helping to ensure the stability of the clamping state. The aforementioned first limiting part 21 and second limiting part 22 are protrusions or steps integrally formed during the machining of the clamping seats 2. In this embodiment, the first limiting part 21 is a groove integrally formed on a clamping seat 2, and the second limiting part 22 is an enlarged part integrally formed on another clamping seat 2. The enlarged part is inserted into the groove and abuts against it, thus limiting the swing angle of the two clamping seats 2.

[0039] In this embodiment, the clamping and releasing drive mechanism 3 includes a motor 31 mounted on the mounting base 1. The motor 31 is connected to two clamping seats 2 via a gear transmission mechanism or a belt transmission mechanism to drive the two clamping seats 2 to switch between a clamping state and a releasing state. Using a drive scheme with a motor 31 and a gear transmission mechanism or a belt transmission mechanism allows for precise and controllable clamping action. In other embodiments, the drive mechanism of the clamping and releasing drive mechanism 3 may also employ other existing technologies.

[0040] In this embodiment, the elastic clamping mechanism 4 includes multiple spring plungers 43, which are mounted on the clamping seat 2 and elastically clamp the insulating operating rod 100 when the clamping seat 2 is in the clamping state. Multiple spring plungers 43 simultaneously contact the insulating operating rod 100, forming multi-point clamping, resulting in dispersed and uniform force distribution and good tolerance for local deformation of the insulating operating rod 100. The aforementioned spring plungers 43 can be commercially available components, including a sleeve, a plunger that moves linearly within the sleeve, and an elastic element that forces the plunger to extend. Alternatively, the spring plungers 43 can be integrated into the clamping seat 2 based on existing technology principles. In other embodiments, the elastic clamping mechanism 4 is not limited to the structural forms of this embodiment and Embodiment 1, and can also employ other existing technologies, as long as it can elastically clamp the insulating operating rod 100 and elastically open beyond the limiting mechanism when the axial force exceeds a set value.

[0041] In this embodiment, the limiting mechanism includes a limiting member 5 mounted on the insulating operating rod 100. The limiting member 5 and the elastic clamping mechanism 4 (the plunger of the spring plunger 43) are provided with guide slopes or curved surfaces. These guide slopes or curved surfaces are used to force the elastic clamping mechanism 4 to open when the axial force on the insulating operating rod 100 exceeds a set value, allowing the elastic clamping mechanism 4 to pass over the limiting member 5. The guide slopes or curved surfaces smoothly convert the axial movement of the insulating operating rod 100 into a force that pushes the elastic clamping mechanism 4 to open radially, improving the smoothness and reliability of the operation. In this embodiment, the limiting member 5 has guide slopes or curved surfaces on both sides, which respectively cooperate with the spring plungers 43 of the elastic clamping mechanism 4 on both sides. The plunger end of the spring plunger 43 is provided with a hemispherical surface as a curved surface. In other embodiments, guide slopes or curved surfaces may be provided only on the limiting member 5 or only on the elastic clamping mechanism 4.

[0042] In this embodiment, the limiting member 5 is an annular component sleeved and installed on the outer periphery of the insulating operating rod 100. This ensures that the elastic clamping mechanism 4 provides a uniform and reliable blocking surface regardless of the circumferential angle from which the clamping unit contacts the limiting member 5.

[0043] In this embodiment, the annular component is detachably mounted on the insulating operating rod 100 via a detachable connecting mechanism, such as... Figure 3 As shown, the detachable connection mechanism includes multiple locking screws 51, which are threaded onto the annular component and can be tightened and loosened from the insulating operating rod 100 by screwing. This installation structure and method has the advantages of simple structure, low cost, and convenient and flexible installation and removal. By loosening the locking screws 51, the annular component can be slid along the axial direction of the insulating operating rod 100 to any desired position to adapt to the clamping point requirements of different models of portable power short-circuit grounding wires, or to adjust the trigger stroke of overload protection. When the same clamping device needs to be used on insulating operating rods 100 of different diameters, only the annular component with the corresponding inner diameter needs to be replaced, without replacing the entire clamping module, which significantly improves the versatility of the equipment.

[0044] The core working process and principle of this embodiment are as follows: During normal wire hanging or unhanging, the clamping unit clamps the insulating operating rod 100 through the elastic clamping assembly (spring plunger 43), and the pushing / pulling force is transmitted. Under normal circumstances, the force of the elastic clamping assembly clamping the insulating operating rod 100 is sufficient to resist the pushing / pulling force during wire hanging or unhanging. When the clamping force is insufficient to resist the pushing / pulling force during wire hanging or unhanging, the elastic clamping assembly will move axially relative to the insulating operating rod 100 and abut against the limiting member 5 to form a blockage, thereby completing the wire hanging or unhanging. When an abnormal situation occurs (such as the hook jamming and being unable to hang downwards, or the mechanism deforming and being unable to detach upwards), the clamping device will continue to apply an axial force (set as F) according to the preset program under the drive of the installation and removal equipment. When F exceeds the set value (corresponding to the preload setting value of the spring plunger 43), the huge axial force will overcome the elasticity of the spring plunger 43 and force the spring plunger 43 to retract inwards, thereby passing the limiting member 5. After passing the limit piece 5, the spring plunger 43 elastically recovers, re-clamps the insulating operating rod 100, and moves along the axial direction of the insulating operating rod 100 until the clamping device completes the preset stroke, thereby avoiding hard pull damage to the portable power short-circuit grounding wire and power equipment.

[0045] Example 2 The clamping device for installing and removing the portable power short-circuit grounding wire in this embodiment is basically the same as that in Embodiment 1, the main difference being that, Figure 4 As shown, this embodiment includes two clamping modules, each clamping module including two limiting mechanisms, and a clamping unit including a set of elastic clamping components. The two limiting mechanisms are respectively disposed on both sides of the set of elastic clamping components. In each clamping module, the two limiting mechanisms are distributed on the upper and lower sides of a single elastic clamping component. When pushing downwards to perform a wire hanging operation, the upper limiting mechanism abuts against the upper end of the elastic clamping component, transmitting the pushing force; when pulling upwards to perform a wire removal operation, the lower limiting mechanism abuts against the lower end of the elastic clamping component, transmitting the pulling force, thus achieving bidirectional overload protection.

[0046] Example 3 The clamping device for installing and removing the portable power short-circuit grounding wire in this embodiment is basically the same as that in Embodiment 2, the main difference being that, Figure 5 and Figure 6As shown, this embodiment includes a clamping module. The elastic clamping mechanism 4 of the clamping module includes a clamping member 41 and a spring 42. The clamping member 41 is hinged to the clamping seat 2 and can swing around the hinge axis to clamp and release the insulating operating rod 100 when the clamping seat 2 is in the clamping state. The spring 42 is connected to the clamping member 41 and provides elastic force to force the clamping member 41 to swing in the direction of clamping the insulating operating rod 100. By replacing the spring 42 with different stiffness coefficients or adjusting the pre-compression of the spring 42, different clamping forces can be easily set. At the same time, by designing the lever ratio of the clamping member 41, secondary adjustment of the elastic characteristics can be achieved, resulting in high design flexibility. The hinged structure has low frictional resistance, and in conjunction with the action of the spring 42, the clamping member 41 is very sensitive to changes in contact and force on the insulating operating rod 100, and can quickly respond to overload and open.

[0047] In other embodiments, a clamping module can be added to this embodiment to obtain a new implementation scheme. Alternatively, the elastic clamping mechanism 4 of embodiment 1 can be replaced with the elastic clamping mechanism 4 of this embodiment to obtain another implementation scheme.

[0048] Example 4 like Figure 7 As shown, an assembly / disassembly device of this embodiment includes a chassis 200, a robotic arm 300 mounted on the chassis 200, and a clamping device mounted on the robotic arm 300. The clamping device adopts the ground wire hook assembly / disassembly clamping device of Embodiment 1, 2, or 3. Because this assembly / disassembly device uses the ground wire hook assembly / disassembly clamping device of Embodiment 1, it also possesses its advantages, enabling fully automatic and highly efficient assembly / disassembly of portable power short-circuit grounding wires, while ensuring the safety of the operation process and avoiding interruptions and losses due to sudden failures. Both the chassis 200 and the robotic arm 300 of this embodiment can utilize existing technologies.

[0049] The above description is merely a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above embodiments. For those skilled in the art, improvements and modifications obtained without departing from the inventive concept should also be considered within the scope of protection of the present invention.

Claims

1. A portable clamping device for installing and removing power short-circuit grounding wires, characterized in that, The device includes at least one clamping module, which includes a limiting mechanism mounted on the insulated operating rod (100) of the portable power short-circuit grounding wire and a clamping unit for clamping the insulated operating rod (100). The clamping unit is provided with an elastic clamping component and clamps the insulated operating rod (100) through the elastic clamping component. The limiting mechanism is used to limit the elastic clamping component to prevent the elastic clamping component from moving along the axial direction of the insulated operating rod (100). When the axial force on the insulated operating rod (100) exceeds a set value, the elastic clamping component can move along the axial direction of the insulated operating rod (100) and pass over the limiting mechanism.

2. The clamping device for installing and removing the portable power short-circuit grounding wire according to claim 1, characterized in that, The clamping module includes a limiting mechanism, and the clamping unit includes two sets of elastic clamping components, which are respectively disposed on both sides of the limiting mechanism; or the clamping module includes two limiting mechanisms, and the clamping unit includes one set of elastic clamping components, which are respectively disposed on both sides of the set of elastic clamping components.

3. The clamping device for installing and removing the portable power short-circuit grounding wire according to claim 1 or 2, characterized in that, The elastic clamping assembly includes a mounting base (1), two clamping seats (2) and a clamping and releasing drive mechanism (3). The clamping and releasing drive mechanism (3) is connected to the two clamping seats (2) and drives the two clamping seats (2) to switch between a clamping state and a releasing state. Each clamping seat (2) is provided with an elastic clamping mechanism (4) for elastically clamping the insulating operating rod (100). When the two clamping seats (2) are in the clamping state, the insulating operating rod (100) is clamped by the elastic clamping mechanisms (4) of the two clamping seats (2) together, or the insulating operating rod (100) is clamped by the elastic clamping mechanisms (4) of the two clamping seats (2) and the mounting base (1).

4. The clamping device for installing and removing the portable power short-circuit grounding wire according to claim 3, characterized in that, The clamping seat (2) is hinged to the mounting seat (1) and switches between the clamping state and the releasing state by swinging around the hinge axis; the elastic clamping assembly is provided with a swing angle limiting mechanism, which limits the swing angle of the two clamping seats (2) when they are in the clamping state, so as to provide space for the elastic clamping mechanism (4) to pass over the limiting member (5); the swing angle limiting mechanism includes a first limiting part (21) provided on one clamping seat (2) and a second limiting part (22) provided on the other clamping seat (2), when the two clamping seats (2) perform the clamping action, the first limiting part (21) and the second limiting part (22) abut against each other.

5. The clamping device for installing and removing the portable power short-circuit grounding wire according to claim 4, characterized in that, The clamping drive mechanism (3) includes a motor (31) mounted on the mounting base (1). The motor (31) is connected to the two clamping seats (2) through a gear transmission mechanism or a belt transmission mechanism to drive the two clamping seats (2) to switch between a clamping state and a releasing state.

6. The clamping device for installing and removing the portable power short-circuit grounding wire according to claim 3, characterized in that, The elastic clamping mechanism (4) includes a clamping member (41) and a spring (42). The clamping member (41) is hinged to the clamping seat (2) and can swing around the hinge axis to clamp and release the insulating operating rod (100) when the clamping seat (2) is in the clamping state. The spring (42) is connected to the clamping member (41) and provides elastic force to force the clamping member (41) to swing in the direction of clamping the insulating operating rod (100).

7. The clamping device for installing and removing the portable power short-circuit grounding wire according to claim 3, characterized in that, The elastic clamping mechanism (4) includes a plurality of spring plungers (43) which are mounted on the clamping seat (2) and elastically clamp the insulating operating rod (100) when the clamping seat (2) is in the clamping state.

8. The clamping device for installing and removing the portable power short-circuit grounding wire according to claim 3, characterized in that, The limiting mechanism includes a limiting member (5) installed on the insulating operating rod (100). The limiting member (5) and / or the elastic clamping mechanism (4) are provided with a guide slope or curved surface for forcing the elastic clamping mechanism (4) to open when the axial force on the insulating operating rod (100) exceeds a set value, so that the elastic clamping mechanism (4) passes over the limiting member (5).

9. The clamping device for installing and removing the portable power short-circuit grounding wire according to claim 3, characterized in that, The limiting member (5) is an annular component sleeved on the outer periphery of the insulating operating rod (100); the annular component is detachably mounted on the insulating operating rod (100) through a detachable connection mechanism, the detachable connection mechanism including a plurality of locking screws (51), the locking screws (51) are threadedly connected to the annular component and can be tightened and loosened by screwing on the insulating operating rod (100).

10. An assembly / disassembly device, characterized in that, It includes a chassis (200), a robotic arm (300) mounted on the chassis (200), and a clamping device mounted on the robotic arm (300), wherein the clamping device is the clamping device for attaching and detaching a portable power short-circuit grounding wire as described in any one of claims 1 to 9.

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