Method for hanging and detaching grounding wire at high altitude

Abstract

The invention discloses a method for hanging and detaching a ground wire at high altitude, a ground wire hanging and detaching device is adopted for construction, the ground wire hanging and detaching device comprises a moving mechanism, a lifting mechanism arranged on a moving platform, an operating arm and a clamping mechanism, the operating arm is movably installed at the end, away from the moving mechanism, of the lifting mechanism, and the clamping mechanism is arranged on the moving platform. The lifting mechanism is used for driving the operating arm to vertically lift relative to the moving mechanism; the clamping mechanism is provided with a plurality of clamping assemblies, each clamping assembly is provided with a clamping piece used for being clamped on a to-be-grounded line, the clamping assemblies are detachably connected with the operation arm through connecting assemblies, and the connecting assemblies are rotationally connected with the operation arm. The operation arm rotates relative to the clamping assembly so that the connecting assembly can be switched between the locking state and the unlocking state. The high-altitude grounding device has the beneficial effects that the operation difficulty of high-altitude grounding operation can be simplified, the operation efficiency is improved, and the safety of operators is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of power transformation maintenance, in particular to a method for hanging and removing a grounding wire at high altitude. Background Art

[0002] In order to ensure the safe and stable operation of the substation, it is often necessary to regularly inspect and maintain the equipment. Before each power outage for inspection and maintenance, the substation needs to hang a grounding wire to prevent casualties caused by accidental voltage on the power-off equipment or lines.

[0003] Usually, for open-type extra-high voltage equipment with voltage levels of 220kV and 500kV and above, and 1000kV extra-high voltage equipment, due to the large insulation distance of the equipment, the equipment installation height is also relatively high. It is often difficult to manually hang the ground wire with an insulating rod. If a climbing vehicle is used, a large amount of manpower and material resources are often required in the stage of hanging the ground wire. Moreover, when using a climbing vehicle to hang the ground wire, maintenance personnel are required to hold an insulating operating rod on the aerial work vehicle to hang the hook connected to the ground wire on the line to be grounded each time. After hanging one point, they return to the ground to take down another ground wire and rely on the aerial work vehicle to hang it. Not only is the operation difficult, but it also faces safety issues in high-altitude operations. Summary of the invention

[0004] The purpose of the present invention is to provide a method for hanging and removing a grounding wire at high altitude, which can simplify the difficulty of high altitude grounding operation and help improve operation efficiency.

[0005] The present invention is achieved through the following technical solutions.

[0006] A method for hanging and removing a grounding wire at high altitude, using a grounding wire hanging and removing device for construction, the grounding wire hanging and removing device comprising a moving mechanism, a lifting mechanism arranged on the moving platform, an operating arm and a clamping mechanism, the operating arm being movably mounted on one end of the lifting mechanism away from the moving mechanism, the lifting mechanism being used to drive the operating arm to vertically lift and lower relative to the moving mechanism; the clamping mechanism being configured with a plurality of clamping assemblies, the clamping assemblies having clamping pieces for clamping on a line to be grounded, the clamping assemblies being detachably connected to the operating arm via a connecting assembly, the connecting assembly being rotatably connected to the operating arm, the operating arm being rotated relative to the clamping assembly so that the connecting assembly is switched between a locked state and an unlocked state; The method for hanging and removing the grounding wire comprises the following steps: S1: Move the grounding wire hanging and removing device to the bottom of the construction site; S2: Control the lifting mechanism to make the operating arm at the installation height; S3: electrically connecting one end of the grounding wire to the clamping member of one of the clamping assemblies, and electrically connecting the other end of the grounding wire to the grounding device; S4: installing the clamping assembly on the operating arm, and controlling the operating arm to move so that the connecting assembly is in a locked state; S5: Control the lifting mechanism to raise the operating arm to the hook height; S6: Control the operation of the operating arm to move the clamping assembly to the clamping position; S7: Control the clamping assembly to move so that the clamping member is clamped on the line to be grounded; S8: controlling the operation arm to move so that the connecting assembly is in an unlocked state and the operation arm is separated from the clamping assembly; S9: Repeat steps S2 to S8 until the grounding operation of all grounding wires is completed.

[0007] As a further improvement of the present invention, the connecting assembly includes a first connecting member and a second connecting member, and the end portion of the first connecting member close to the second connecting member is recessed inward to form a accommodating space for accommodating the second connecting member, and the outer wall of the first connecting member is provided with a connecting groove connected to the accommodating space, and the connecting groove includes a locking section and an unlocking section connected to each other, and the outer wall of the second connecting member is provided with a locking portion protruding outward, and the end portion of the first connecting member close to the second connecting member is provided with an opening connected to the unlocking section, and the locking portion can pass through the opening to enter the unlocking section, and the locking portion rotates along the connection direction between the unlocking section and the locking section so that the locking portion corresponds to the unlocking section or corresponds to the locking section.

[0008] As a further improvement of the present invention, the clamping assembly includes a shell, the clamping member is arranged on the shell, the clamping member includes two clamping parts that are relatively spaced and movably mounted on the shell, a side where the two clamping parts are close to each other is provided with an inwardly recessed limiting groove, and a driver is provided inside the shell to drive the two clamping parts to approach or move away from each other, the first connecting member is provided at one end of the shell away from the clamping member, and the second connecting member is rotatably connected to the operating arm.

[0009] As a further improvement of the present invention, the number of the connecting grooves is multiple, and the multiple connecting grooves are spaced apart along the circumference of the first connecting member.

[0010] As a further improvement of the present invention, the lifting mechanism includes a lifting rod and a cylinder telescopic mechanism, the lifting rod is hinged on the moving mechanism, the operating arm is fixed to one end of the lifting rod away from the moving mechanism, the telescopic end of the cylinder telescopic mechanism is connected to the lifting rod, and the telescopic movement of the cylinder telescopic mechanism drives the lifting rod to rotate relative to the moving mechanism to enable the operating arm to move up and down.

[0011] As a further improvement of the present invention, the operating arm includes a mounting seat, a first operating arm and at least one second operating arm, the mounting seat is fixed on the lifting rod, the first operating arm is slewingly mounted on the mounting seat, and the second operating arm is rotatably mounted on the first operating arm so that the second operating arm rotates around the first operating arm.

[0012] As a further improvement of the present invention, the connecting component is connected to an end of the second operating arm away from the first operating arm, and the connecting component is rotatably mounted on the second operating arm.

[0013] As a further improvement of the present invention, the ground wire hanging and removing device also includes a remote controller, and the remote controller is used to control the actions of the operating arm, the lifting mechanism and the clamping assembly.

[0014] As a further improvement of the present invention, the grounding wire hanging and removing device also includes a monitoring mechanism, which obtains environmental information around the clamping assembly, and the camera mechanism is wirelessly connected to the remote control to transmit the image captured by the monitoring mechanism to the remote control in real time.

[0015] As a further improvement of the present invention, support mechanisms are provided on both sides of the moving mechanism.

[0016] Beneficial effects of the present invention: When performing the hanging operation of the grounding wire, first, the operating arm is moved to the installation height through the cooperation of the moving mechanism and the lifting mechanism, and the operator connects the grounding wire to the clamping member and installs the clamping assembly on the operating arm, and then the lifting mechanism and the operating arm are used to clamp the clamping assembly on the line to be grounded, so as to achieve a reliable connection between the grounding wire and the line to be grounded. Compared with the operating method of hanging the grounding wire in the air by the operator controlling the insulating rod to suspend in the air in the prior art, on the one hand, it can avoid the operator's high-altitude operation and has high safety. On the other hand, since the fixing and separation operations between the operating arm and the clamping assembly are simple and convenient, the difficulty of hanging the grounding wire at high altitude is significantly simplified, and the working efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of the present invention, wherein: Figure 1 It is a structural schematic diagram of the ground wire hanging and removing device; Figure 2 This is the construction drawing for grounding operation using the grounding wire hanging and removing device; Figure 3 for Figure 1 Schematic diagram of the structure of part A; Figure 4 for Figure 2 The structural diagram of part B; Figure 5 is a connection diagram between the clamping assembly and the operating arm; Figure 6 for Figure 5 Schematic diagram of the structure of part C; Figure 7 A schematic diagram of the structure of the clamping assembly. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below based on the accompanying drawings and implementation examples.

[0019] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. The words "inside" and "outside" refer to the direction toward or away from the geometric center of a specific component, respectively. They are relative concepts, and therefore may change accordingly according to different locations and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0020] Embodiment 1: This embodiment provides a grounding wire hanging and removing device, referring to Figures 1 to 7 , which includes a moving mechanism 1, a lifting mechanism 2 arranged on a moving platform, an operating arm 3 and a clamping mechanism. The operating arm 3 is movably installed on the lifting mechanism 2. The lifting mechanism 2 is used to drive the operating arm 3 to vertically lift relative to the moving mechanism 1. The clamping mechanism is equipped with a plurality of clamping components 4. The clamping component 4 has a clamping member 41 for clamping on the line to be grounded. The clamping component 4 and the operating arm 3 are detachably connected through a connecting component 5. The connecting component 5 is rotatably connected to the operating arm 3. The operating arm 3 rotates relative to the clamping component 4 so that the connecting component 5 switches between a locked state and an unlocked state. In the locked state, the operating arm 3 is tightly connected to the clamping component 4, which can prevent the clamping component 4 from accidentally falling off or moving, thereby ensuring that the operating arm 3 controls the stable movement of the clamping component 4. In the unlocked state, the operating arm 3 can be moved to separate the operating arm 3 from the clamping component 4, so that the clamping component 4 can be fixed separately on the line to be grounded.

[0021] It should be noted that in this embodiment, when the grounding operation is performed, one end of the grounding wire m is electrically connected to the clamping member 41. At this time, the grounding wire m is conductively connected to the clamping member. Therefore, when the clamping member 41 is clamped on the circuit to be grounded, the grounding wire m can be conductively connected to the circuit to be grounded, thereby achieving a reliable connection between the grounding wire m and the circuit to be grounded.

[0022] In this embodiment, the connecting assembly 5 includes a first connecting member 52 and a second connecting member 51. The end portion of the first connecting member 52 close to the second connecting member 51 is recessed inward to form a receiving space for receiving the second connecting member 51. The outer wall of the first connecting member 52 is provided with a connecting groove connected to the receiving space. The connecting groove includes a locking section 522 and an unlocking section 521 connected to each other. The outer wall of the second connecting member 51 is provided with a locking portion protruding outward. The end portion of the first connecting member 52 close to the second connecting member 51 is provided with an opening 523 connected to the unlocking section 521. The locking portion 512 can enter through the opening 523. When the locking portion 512 reaches the unlocking section 521, the locking portion 512 rotates along the connection direction between the unlocking section 521 and the locking section 522, so that the locking portion 512 corresponds to the unlocking section 521 or the locking section 522. It should be noted that when the locking portion 512 corresponds to the locking section 522, the connecting component 5 is in a locked state, and when the locking portion 512 corresponds to the unlocking section 521, the connecting component 5 is in an unlocked state. The operating arm 3 can be separated from the clamping component 4 by controlling the operating arm 3 to move out from the opening 523. Therefore, the fixing and separation of the operating arm 3 and the clamping component 4 can be achieved through simple operations, which greatly improves the working efficiency.

[0023] In this embodiment, there are multiple connecting grooves, and the multiple connecting grooves are arranged at circumferential intervals along the first connecting member 52. Correspondingly, the second connecting member 51 is provided with locking portions 512 corresponding to the connecting grooves one by one. The cooperation between the multiple locking portions 512 and the multiple connecting grooves can improve the structural strength of the connecting assembly 5 when it is in a locked state, thereby improving the connection stability between the operating arm 3 and the clamping assembly 4.

[0024] In this embodiment, the clamping assembly 4 includes a shell 42, and the clamping member 41 is arranged on the shell 42. The clamping member 41 includes two clamping parts 411 that are relatively spaced and movably mounted on the shell 42. A limiting groove recessed inwardly is provided on the side where the two clamping parts 411 are close to each other. A driver is provided inside the shell 42 to drive the two clamping parts 411 to approach or move away from each other. The first connecting member 52 is provided at one end of the shell 42 away from the clamping member 41, and the second connecting member 51 is rotatably connected to the operating arm 3. When the clamping assembly 4 is in use, the driver can be used to control the two clamping parts 411 to approach each other and make close contact with the line to be grounded, so that the clamping assembly 4 is fixedly clamped on the line to be grounded. Therefore, when the operating arm is separated from the clamping assembly 4, the clamping assembly 4 can be stably fixed on the line to be grounded, ensuring a reliable connection between the grounding wire m and the line to be grounded.

[0025] In this embodiment, the lifting mechanism 2 includes a lifting rod 21 and a cylinder telescopic mechanism 22. The lifting rod 21 is hinged on the moving mechanism 1. The operating arm 3 is fixed to the end of the lifting rod 21 away from the moving mechanism 1. The telescopic end of the cylinder telescopic mechanism 22 is connected to the lifting rod 21. The telescopic movement of the cylinder telescopic mechanism 22 drives the lifting rod 21 to rotate relative to the moving mechanism 1 to enable the operating arm 3 to move up and down.

[0026] In this embodiment, the operating arm 3 includes a mounting base 31, a first operating arm 32 and at least one second operating arm 333. The mounting base 31 is fixed on the lifting rod 21, and the first operating arm 32 is rotatably mounted on the mounting base 31, that is, the first operating arm 2 rotates in place, and the second operating arm 33 is rotatably mounted on the first operating arm 32 so that the second operating arm 33 rotates around the first operating arm 32. At the same time, the connecting component 5 is connected to the end of the second operating arm 33 away from the first operating arm 32, and the connecting component 5 is rotatably mounted on the second operating arm 33, that is, the connecting component 5 can rotate relative to the second operating arm 32. Therefore, controlling the rotation of the first operating arm 32 can drive the clamping component 4 connected to the second operating arm 33 to move horizontally, and controlling the rotation of the second operating arm 33 can drive the clamping component 4 connected to the second operating arm 33 to move vertically, so that the clamping component 4 can reach the clamping position under the control of the operating arm 3, ensuring accurate contact between the clamping portion 411 and the line to be grounded.

[0027] In this embodiment, the grounding wire hanging and removing device also includes a remote control, which is used to control the actions of the operating arm 3, the lifting mechanism 2 and the clamping assembly 4. The operator can remotely control the operating arm 3, the lifting mechanism 2 and the clamping assembly 4 through the remote control, which helps to improve the safety of the operation.

[0028] In this embodiment, in order to improve the accuracy of the grounding operation, a monitoring mechanism is provided on the mounting base 31, and the monitoring mechanism is used to obtain environmental information around the clamping component 4. The monitoring mechanism is wirelessly connected to the remote control to transmit the picture taken by the monitoring mechanism to the remote control in real time. Specifically, the monitoring mechanism includes a camera 71 and a wireless transceiver. The camera 71 is set on the mounting base 31, and the camera is connected to the remote control through the wireless transceiver. The camera transmits the captured picture to the remote control in real time through the wireless transceiver, so that the operator can more accurately control the operating arm 3 to perform the grounding operation.

[0029] In this embodiment, support mechanisms 8 are provided on both sides of the mobile mechanism 1. The support mechanisms 8 can adopt a total of four foldable legs distributed on the left and right sides of the crawler mobile chassis structure. Each foldable leg is connected to the mobile mechanism 1 through a hinge mechanism and a hydraulic cylinder. The foldable legs are propped up during the movement of the mobile mechanism 1. When the mobile mechanism 1 stays at a certain position for a long time, the foldable legs can be put down to support the ground, which helps to stably support the entire fuselage when the lifting mechanism 2 is in use, thereby improving the safety of the equipment.

[0030] In this embodiment, the mobile mechanism 1 can adopt a crawler-type mobile chassis structure. Compared with the ordinary wheeled mobile chassis structure, the crawler-type mobile chassis structure includes a chassis, a crawler frame, left and right travel motors and tracks, so as to have better maneuverability and stability on uneven ground, soft land or narrow space.

[0031] Embodiment 2: This embodiment provides a method for hanging and removing a grounding wire at high altitude, which uses the grounding wire hanging and removing device in Embodiment 1 for construction. The method for hanging and removing a grounding wire m includes the following steps: S1: Move the grounding wire hanging and removing device to the bottom of the construction site; S2: Control the lifting mechanism 2 to move so that the operating arm 3 is at the installation height; S3: One end of the grounding wire m is electrically connected to the clamping member 41 of one of the clamping assemblies 4, and the other end is electrically connected to the grounding device; S4: Install the clamping assembly 4 on the operating arm 3, and control the operation arm 3 to move so that the connecting assembly 5 is in a locked state; S5: Control the lifting mechanism 2 to move so that the operating arm 3 is raised to the hanging height; S6: Control the operating arm 3 to move the clamping assembly 4 to the clamping position; S7: Control the clamping assembly 4 to move so that the clamping member 41 is clamped on the line to be grounded; S8: Control the operation arm 3 to make the connection assembly 5 unlocked and separate the operation arm 3 from the clamping assembly 4; S9: Repeat steps S2 to S8 until the grounding operation of all grounding wires m is completed.

[0032] In this embodiment, when the grounding wire m is hung, the operating arm 3 is first moved to the installation height through the cooperation of the moving mechanism 1 and the lifting mechanism 2, and the operator connects the grounding wire m to the clamping member 41 and installs the clamping assembly 4 on the operating arm, and then the lifting mechanism 2 and the operating arm 3 are used to clamp the clamping assembly 4 on the line to be grounded, so as to achieve a reliable connection between the grounding wire m and the line to be grounded. Compared with the prior art method of hanging the grounding wire m by controlling the insulating rod to be suspended at high altitude by the operator, on the one hand, it can avoid the operator from working at high altitude, and has high safety. On the other hand, since the fixing and separation operations between the operating arm 3 and the clamping assembly 4 are simple and convenient, the difficulty of hanging the grounding wire m at high altitude is significantly simplified, and the working efficiency is improved.

[0033] In this embodiment, the grounding device in step S3 may be a grounding stake or a three-phase grounding wire short-circuiter, which is connected to the ground, thereby introducing the current in the power equipment into the ground.

[0034] Finally, it should be noted that the above implementation cases are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned implementation cases, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned implementation cases, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the implementation cases of the present invention.

Claims

1. A method for hanging and removing a grounding wire at high altitude, characterized in that: A grounding wire hanging and removing device is used for construction, the grounding wire hanging and removing device comprising a moving mechanism (1), a lifting mechanism (2) arranged on the moving mechanism (1), an operating arm (3) and a clamping mechanism, the operating arm (3) being movably mounted on the lifting mechanism (2), the lifting mechanism (2) being used to drive the operating arm (3) to vertically lift and lower relative to the moving mechanism (1); The clamping mechanism is provided with a plurality of clamping assemblies (4), the clamping assemblies (4) having clamping parts (41) for clamping on a line to be grounded, the clamping assemblies (4) being detachably connected to the operating arm (3) via a connecting assembly (5), the connecting assembly (5) being rotationally connected to the operating arm (3), the operating arm (3) rotating relative to the clamping assemblies (4) so ​​that the connecting assembly (5) switches between a locked state and an unlocked state; The method for hanging and removing the grounding wire comprises the following steps: S1: Move the grounding wire hanging and removing device to the bottom of the line to be grounded; S2: Control the lifting mechanism (2) to move so that the operating arm (3) is at the installation height; S3: electrically connecting one end of the grounding wire (m) to the clamping member (41) of one of the clamping assemblies (4), and electrically connecting the other end to a grounding device; S4: installing the clamping assembly (4) on the operating arm (3), and controlling the operating arm (3) to move so that the connecting assembly (5) is in a locked state; S5: controlling the lifting mechanism (2) to move so that the operating arm (3) is raised to a hanging height; S6: controlling the operating arm (3) to move the clamping assembly (4) to a clamping position; S7: controlling the clamping assembly (4) to move so that the clamping member (41) is clamped on the line to be grounded; S8: controlling the operation arm (3) to move so that the connection component (5) is in an unlocked state and the operation arm (3) is separated from the clamping component (4); S9: Repeat steps S2 to S8 until the grounding operation of all grounding wires (m) is completed.

2. A method for hanging and removing a grounding wire at high altitude according to claim 1, characterized in that: The connecting assembly (5) comprises a first connecting member (52) and a second connecting member (51); an end portion of the first connecting member (52) close to the second connecting member (51) is inwardly recessed to form an accommodating space for accommodating the second connecting member (51); an outer wall of the first connecting member (52) is provided with a connecting groove connected to the accommodating space; the connecting groove comprises a locking section (522) and an unlocking section (521) connected to each other; an outer wall of the second connecting member (51) is provided with a locking portion (512) protruding outward; an end portion of the first connecting member (52) close to the second connecting member (51) is provided with an opening (523) connected to the unlocking section (521); the locking portion (512) can pass through the opening (523) and enter the unlocking section (521); the locking portion (512) rotates along the connecting direction of the unlocking section (521) and the locking section (522) so that the locking portion (512) corresponds to the unlocking section (521) or the locking section (522).

3. A method for hanging and removing a ground wire at high altitude according to claim 2, characterized in that: The clamping assembly (4) comprises a shell (42), the clamping member (41) is arranged on the shell (42), the clamping member (41) comprises two clamping parts (411) arranged at a relative interval and movably mounted on the shell (42), a limiting groove recessed inwardly is provided on the side where the two clamping parts (411) are close to each other, a driver is provided inside the shell (42) for driving the two clamping parts (411) to move closer to or away from each other, the first connecting member (52) is provided at one end of the shell (42) away from the clamping member (41), and the second connecting member (51) is rotatably connected to the operating arm (3).

4. The method for hanging and removing a ground wire at high altitude according to claim 2, characterized in that: The connection grooves are provided in plurality, and the plurality of connection grooves are arranged at intervals along the circumference of the first connection member (52).

5. A method for hanging and removing a ground wire at high altitude according to any one of claims 1 to 4, characterized in that: The lifting mechanism (2) comprises a lifting rod (21) and a cylinder telescopic mechanism (22); the lifting rod (21) is hinged on the moving mechanism (1); the operating arm (3) is fixed to one end of the lifting rod (21) away from the moving mechanism (1); the telescopic end of the cylinder telescopic mechanism (22) is connected to the lifting rod (21); the telescopic movement of the cylinder telescopic mechanism (22) drives the lifting rod (21) to rotate relative to the moving mechanism (1) so that the operating arm (3) can be lifted or lowered.

6. A method for hanging and removing a ground wire at high altitude according to claim 5, characterized in that: The operating arm (3) comprises a mounting seat (31), a first operating arm (32) and at least one second operating arm (33); the mounting seat (31) is fixed on the lifting rod (21); the first operating arm (32) is rotatably mounted on the mounting seat (31); and the second operating arm (33) is rotatably mounted on the first operating arm (32) so that the second operating arm (33) rotates around the first operating arm (32).

7. A method for hanging and removing a ground wire at high altitude according to claim 6, characterized in that: The connecting component (5) is connected to an end of the second operating arm (33) away from the first operating arm (32), and the connecting component (5) is rotatably mounted on the second operating arm (33).

8. The method for hanging and removing a ground wire at high altitude according to claim 1, characterized in that: The ground wire hanging and removing device also includes a remote controller, which is used to control the actions of the operating arm (3), the lifting mechanism (2) and the clamping assembly (4).

9. A method for hanging and removing a ground wire at high altitude according to claim 8, characterized in that: The ground wire hanging and removing device further comprises a monitoring mechanism, the monitoring mechanism being used to obtain environmental information around the clamping assembly (4), the monitoring mechanism being wirelessly connected to the remote controller so as to transmit images obtained by the monitoring mechanism to the remote controller in real time.

10. The method for hanging and removing a ground wire at high altitude according to claim 1, characterized in that: Support mechanisms (8) are provided on both sides of the moving mechanism (1).

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