A special dismounting, assembling and transferring trolley for 500kV GIS circuit breaker

Abstract

The utility model provides a kind of 500kVGIS circuit breaker special dismounting and transporting trolley.The 500kVGIS circuit breaker special dismounting and transporting trolley includes: mobile chassis;Two M-shaped supports, two The M-shaped support is respectively fixedly connected in the position of the top of mobile chassis at both sides, the top of two The M-shaped support is equipped with protection assembly by mounting hole, the mobile chassis includes chassis, four universal wheels and four reinforcing plates, four The universal wheel is installed in the bottom of chassis near the position of four corners, four The reinforcing plate is installed in the corner of chassis interior;Two storage frame, two storage frame is fixedly connected in the front and back of mobile chassis.The 500kVGIS circuit breaker special dismounting and transporting trolley provided by the utility model realizes shortening single dismounting time by design, reduces manpower demand, and reduces the risk of equipment damage in the process of dismounting and transporting, greatly reduces the equipment damage rate.

Description

Technical Field

[0001] This utility model relates to the technical field of 500kV GIS circuit breakers, and in particular to a special disassembly and transfer trolley for 500kV GIS circuit breakers. Background Technology

[0002] The 500kV GIS circuit breaker is the core component of 500kV gas-insulated metal-enclosed switchgear, used in high-voltage power systems. It seals circuit breaker components within a metal casing filled with SF6 gas insulation. It is small in size, requires little space, and has strong resistance to environmental interference. Its main functions are to connect and disconnect the 500kV circuit current under normal conditions and to quickly disconnect the short-circuit current during faults, protecting power grid equipment. It is widely used in 500kV substations to ensure the safe and stable operation of ultra-high voltage transmission systems and is a key control and protection device in power systems.

[0003] The 500kV GIS circuit breaker dedicated disassembly, assembly, and transportation system is a specialized operation process and supporting equipment system for this ultra-high voltage equipment. It fundamentally solves the problems of the equipment's bulkiness, limited operating space, and high precision requirements. Before operation, SF6 gas is recovered, and then specialized lifting machinery is used to support and fix surrounding components. The circuit breaker is precisely disassembled using pulley hoisting and chain hoist adjustment. It is then transported by a hydraulic trolley or intelligent transport vehicle. Strict control of operational precision and sealing protection is required throughout the process. This shortens power outage time, reduces operational risks, and ensures safe and efficient equipment maintenance and replacement. Currently, most circuit breaker reassemblies in the domestic power industry are reinstalled by hoisting. Because the reassembly and docking of circuit breakers have extremely stringent requirements for horizontality, verticality, and coaxiality, substandard precision can lead to SF6 gas seal failure, causing leakage, reducing insulation strength, threatening safe operation, and concentrating mechanical stress, affecting the operating mechanism's characteristics, and even causing failure to operate or malfunction, resulting in decreased long-term operational reliability.

[0004] In some confined spaces, 500kV GIS circuit breakers are hoisted and repositioned using bridge cranes or other lifting tools. However, due to the limited number of lifting points (usually only 1-2), the degree of freedom in adjustment is low, making precise fine-tuning difficult. The operation response is slow, the adjustment process is time-consuming and labor-intensive, and there is a risk of collision, which can easily damage the circuit breaker's flange sealing surface, insulators, or internal components of the cylinder, reducing the installation qualification rate and making it inconvenient to disassemble, assemble, and transport 500kV GIS circuit breakers.

[0005] Therefore, it is necessary to provide a special disassembly and transfer trolley for 500kV GIS circuit breakers to solve the above-mentioned technical problems. Summary of the Invention

[0006] This utility model provides a special disassembly and transportation trolley for 500kV GIS circuit breakers, which solves the problems of insufficient lifting points, low degree of adjustment freedom, difficulty in precise fine-tuning, slow response, time-consuming and labor-intensive, risk of collision, and easily damaged parts affecting the installation qualification rate and inconvenient transportation of existing 500kV GIS circuit breakers during disassembly and assembly in confined spaces.

[0007] To solve the above-mentioned technical problems, the 500kV GIS circuit breaker special disassembly and transfer trolley provided by this utility model includes: a mobile base frame; Two M-shaped brackets are fixedly connected to the top of the movable base frame on both sides. Protective components are installed on the top of the two M-shaped brackets through mounting holes. The movable base frame includes a base frame, four casters and four reinforcing plates. The four casters are installed at the bottom of the base frame near the four corners, and the four reinforcing plates are installed at the corners inside the base frame. Two storage boxes are fixedly connected to the front and back of the mobile base. A rotating head is rotatably connected to the inside of each storage box near one side. A handle is installed on the top of the rotating head. A limit component is installed on one side of each storage box near the rotating head.

[0008] Preferably, the total height of the base frame is 28cm, the length of the base frame is 122cm, the width of the base frame is 88cm, the diameter of the caster wheel is 15cm and the thickness is 5cm, and the protective component includes a protective pad and a fixing structure. The fixing structure passes through the mounting hole to fix the protective pad to the top of the M-shaped bracket.

[0009] Preferably, connecting components are installed on both the front and back sides of the mobile base near one side, and a stabilizing component is installed between the two connecting components; The stabilizing component can be used to bind the 500kV GIS circuit breaker to the M-shaped bracket to increase stability.

[0010] Preferably, the connecting assembly includes a fixed base and a fixing ring, wherein the fixed base is used to fix the fixing ring to the front or back of the movable base.

[0011] Preferably, the stabilizing component includes two connecting buckles and a stabilizing strap, the two connecting buckles are connected to a retaining ring, and the stabilizing strap is installed between the two connecting buckles; The connector is similar to a hook, making it easy to assemble and disassemble.

[0012] Preferably, the limiting component includes a fixing plate, an elastic component, a connecting block, and two latches. The fixing plate is used to fix the elastic component to the top of the storage frame, the connecting block is fixed to one end of the elastic component, and the two latches pass through the fixing plate and are fixed to one side of the connecting block. The bolt passes through the fixing plate and is inserted into the opening on the rotating head to easily fix the rotating head.

[0013] Preferably, three shock-absorbing components are installed on the top of the mobile base near both sides, and the top of each set of shock-absorbing components is connected to the bottom of the M-shaped bracket via a quick-release assembly. The shock-absorbing components on the same side of the top of the movable base frame are a set, and the shock-absorbing components are shock-absorbing springs containing dampers.

[0014] Preferably, the quick-release assembly includes a docking frame, a docking block, and a fixing bolt. The docking frame is fixed to the top of the shock-absorbing component, and the fixing bolt passes through the front and back of the docking frame to fix the docking block inside the docking frame.

[0015] Compared with related technologies, the special disassembly and transfer trolley for kVGIS circuit breakers provided by this utility model has the following advantages: This utility model provides a special disassembly and transport trolley for 500kV GIS circuit breakers. To facilitate the disassembly, assembly, and transport of 500kV GIS circuit breakers, two M-shaped brackets are installed on the top of the mobile base frame, with the tops of the two M-shaped brackets forming a V-shape. This facilitates the placement of the 500kV GIS circuit breaker during disassembly, assembly, and transport. Protective components are installed in the V-shaped grooves on the tops of the M-shaped brackets to prevent hard contact between the 500kV GIS circuit breaker and the tops of the M-shaped brackets, reducing abrasion during disassembly, assembly, and transport. By designing and using a special disassembly and transport trolley for circuit breakers, the time required for a single disassembly and assembly is shortened, while manpower requirements are reduced. Furthermore, the risk of equipment damage during disassembly, assembly, and transport is reduced, significantly lowering the equipment damage rate. Attached Figure Description

[0016] Figure 1 A schematic diagram of the first embodiment of the special disassembly and transfer trolley for 500kV GIS circuit breakers provided by this utility model; Figure 2 This utility model provides a structural schematic diagram of the universal wheel; Figure 3 Provided for this utility model Figure 2 An enlarged view of point A shown; Figure 4 Provided for this utility model Figure 2 An enlarged view of point B shown; Figure 5 A schematic diagram of the second embodiment of the special disassembly and transfer trolley for 500kV GIS circuit breakers provided by this utility model; Figure 6 Provided for this utility model Figure 5 A magnified view of point C shown.

[0017] The diagram is labeled as follows: 1. Mobile base frame, 101. Base frame, 102. Casters, 103. Reinforcing plate, 2. M-shaped bracket, 3. Protective components, 301. Protective pad, 302. Fixing structure, 4. Handle, 5. Stabilizing components, 501. Connecting buckle, 502. Stabilizing belt, 6. Connecting components, 601. Fixed base, 602. Fixing ring, 7. Storage frame, 8. Limiting components, 801. Fixing plate, 802. Elastic component, 803. Connecting block, 804. Clamp, 9. Rotating head, 10. Mounting hole, 11. Shock absorption component, 12. Quick release components, 121. Connecting frame, 122. Connecting block, 123. Fixing bolt. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] First Embodiment

[0020] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic diagram of the first embodiment of the special disassembly and transfer trolley for 500kV GIS circuit breakers provided by this utility model; Figure 2 This utility model provides a structural schematic diagram of the universal wheel; Figure 3 Provided for this utility model Figure 2 An enlarged view of point A shown; Figure 4 Provided for this utility model Figure 2 The enlarged view at point B is shown. The special disassembly and transfer trolley for 500kV GIS circuit breakers includes: a mobile base frame 1; Two M-shaped brackets 2 are fixedly connected to the top of the movable base frame 1 on both sides. The top of each M-shaped bracket 2 is equipped with a protective component 3 through the mounting hole 10. The movable base frame 1 includes a base frame 101, four casters 102 and four reinforcing plates 103. The four casters 102 are installed at the bottom of the base frame 101 near the four corners, and the four reinforcing plates 103 are installed at the corners inside the base frame 101. Two storage boxes 7 are fixedly connected to the front and back of the movable base frame 1. A rotating head 9 is rotatably connected to the inside of the two storage boxes 7 near one side. A handle 4 is installed on the top of the rotating head 9. A limit component 8 is installed on one side of the two storage boxes 7 near the rotating head 9. The structure on the mobile base frame 1 allows the 500kV GIS circuit breaker to be easily disassembled and replaced in locations with limited operating space, heavy equipment, high installation precision, and difficult operation, and also reduces the risks during transportation. The bottom of the M-shaped bracket 2 is connected to the mobile base frame 1 by welding. The top of the M-shaped bracket 2 is V-shaped, and the caster wheel 102 has a locking structure that can be locked after moving to the corresponding position. The handle 4 is unfolded when in use and fixed by the limiting component 8, making it easy to push the mobile base frame 1. When not in use, the handle 4 can be retracted into the storage box 7.

[0021] Please refer to Figure 1 , Figure 2 and Figure 4 The base frame 101 has a total height of 28cm, a length of 122cm, a width of 88cm, and a diameter of 15cm and a thickness of 5cm for the casters 102. The protective component 3 includes a protective pad 301 and a fixing structure 302. The fixing structure 302 passes through the mounting hole 10 to fix the protective pad 301 to the top of the M-shaped bracket 2.

[0022] Please refer to Figure 1 The mobile base frame 1 has a connecting component 6 installed on the front and back near one side, and a stabilizing component 5 is installed between the two connecting components 6. The stabilizing component 5 can be used to bind the 500kV GIS circuit breaker to the M-shaped bracket 2 to increase stability.

[0023] Please refer to Figure 1 and Figure 2 The connecting component 6 includes a fixed base 601 and a fixed ring 602. The fixed base 601 is used to fix the fixed ring 602 to the front or back of the movable base 1. The retaining ring 602 is a hollow circular ring.

[0024] Please refer to Figure 1 and Figure 2 The stabilizing component 5 includes two connecting buckles 501 and a stabilizing strap 502. The two connecting buckles 501 are connected to a fixing ring 602, and the stabilizing strap 502 is installed between the two connecting buckles 501. The connecting buckle 501 is similar to a hook, making it easy to install and remove, while the stabilizing strap 502 can be adjusted in length as needed.

[0025] Please refer to Figure 1 , Figure 2 and Figure 3The limiting component 8 includes a fixing plate 801, an elastic component 802, a connecting block 803, and two latches 804. The fixing plate 801 is used to fix the elastic component 802 to the top of the storage frame 7. The connecting block 803 is fixed to one end of the elastic component 802. The two latches 804 pass through the fixing plate 801 and are fixed to one side of the connecting block 803. The bolt 804 passes through the fixing plate 801 and is inserted into the opening on the rotating head 9 to easily fix the rotating head 9.

[0026] The working principle of the 500kV GIS circuit breaker special disassembly and transfer trolley provided by this utility model is as follows: Two M-shaped brackets 2 are installed on the top of the mobile base frame 1, with the tops of the two M-shaped brackets 2 forming a V-shape to facilitate the placement of the 500kV GIS circuit breaker during disassembly, assembly, and transportation. Protective components 3 are installed in the V-shaped grooves at the top of the M-shaped brackets 2 to prevent hard contact between the 500kV GIS circuit breaker and the top of the M-shaped brackets 2, reducing abrasion during disassembly, assembly, and transportation. In actual use, first move the mobile base frame 1 under the 500kV GIS circuit breaker to be disassembled, positioning the 500kV GIS circuit breaker on the two M-shaped brackets 2, then disassemble it. After disassembly, unfold the handle 4, and use the handle 4 to push the mobile base frame 1 to move the disassembled 500kV GIS circuit breaker to the corresponding position. Then, move the maintained 500kV GIS circuit breaker to the required installation position via the mobile base frame 1. Adjust the position of the mobile base frame 1 to align the 500kV GIS circuit breaker with the installation position, and then install it.

[0027] Compared with related technologies, the 500kV GIS circuit breaker special disassembly and transfer trolley provided by this utility model has the following beneficial effects: To facilitate the disassembly, assembly, and transport of the 500kV GIS circuit breaker, two M-shaped brackets 2 are installed on the top of the mobile base frame 1, with the tops of the two M-shaped brackets 2 forming a V-shape. This facilitates the placement of the 500kV GIS circuit breaker during disassembly, assembly, and transport. Protective components 3 are installed in the V-shaped grooves on the tops of the M-shaped brackets 2 to prevent hard contact between the 500kV GIS circuit breaker and the tops of the M-shaped brackets 2, reducing abrasion during disassembly, assembly, and transport. By designing and using a dedicated disassembly and transport trolley for circuit breakers, the time required for a single disassembly and assembly is shortened, while manpower requirements are reduced. Furthermore, the risk of equipment damage during disassembly, assembly, and transport is reduced, significantly lowering the equipment damage rate.

[0028] Second Embodiment

[0029] Please refer to the following: Figures 5-6 , Figure 5 A schematic diagram of the second embodiment of the special disassembly and transfer trolley for 500kV GIS circuit breakers provided by this utility model; Figure 6Provided for this utility model Figure 5 The enlarged view at point C shows a 500kV GIS circuit breaker disassembly and transfer trolley provided in the first embodiment of this application. The second embodiment of this application proposes another 500kV GIS circuit breaker disassembly and transfer trolley. The second embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the independent implementation of the first embodiment.

[0030] Specifically, the difference between the 500kV GIS circuit breaker special disassembly and transfer trolley provided in the second embodiment of this application and the following is noted: Please refer to... Figure 5 and Figure 6 Three shock-absorbing components 11 are installed on the top of the mobile base frame 1 near both sides. The top of each set of shock-absorbing components 11 is connected to the bottom of the M-shaped bracket 2 via a quick-release assembly 12. The shock-absorbing components 11 on the same side of the top of the mobile base frame 1 are a group, and the shock-absorbing component 11 is a shock-absorbing spring containing a damper.

[0031] Please refer to Figure 5 and Figure 6 The quick-release assembly 12 includes a docking frame 121, a docking block 122, and a fixing bolt 123. The docking frame 121 is fixed to the top of the shock-absorbing component 11, and the fixing bolt 123 passes through the front and back of the docking frame 121 to fix the docking block 122 inside the docking frame 121. The top of the mating block 122 is connected to the bottom of the M-shaped bracket 2, and the fixing bolt 123 is threaded to the threaded hole at the front or back of the mating block 122.

[0032] Compared with related technologies, the 500kV GIS circuit breaker special disassembly and transfer trolley provided by this utility model has the following beneficial effects: To increase the stability of the 500kV GIS circuit breaker during transport, multiple shock-absorbing components 11 are installed on the top of the mobile base frame 1. Then, the M-shaped bracket 2 is fixed on top of the shock-absorbing components 11 by the quick-release assembly 12, which allows for quick disassembly of the M-shaped bracket 2. During the transfer of the 500kV GIS circuit breaker placed on top of the M-shaped bracket 2, the shock-absorbing components 11 can filter out ground vibrations, reducing the probability of the 500kV GIS circuit breaker falling and being damaged during transport. This design not only facilitates the replacement of the M-shaped bracket 2 after damage, but also increases the stability of the 500kV GIS circuit breaker during transport.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

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