GCB arc extinguish chamber moving contact maintenance system and use method thereof

Abstract

The invention discloses a GCB arc extinguish chamber moving contact maintenance system and a using method thereof.The GCB arc extinguish chamber moving contact maintenance system comprises a work platform, a lifting unit, a dismounting unit and a hoisting unit, a movable platform is installed on the work plane of the work platform in a front-back moving mode, and the lifting unit is located at the front end of the work platform; the lifting unit is connected with the working platform through a longitudinal lifting structure, the dismounting unit can enter a working plane through the lifting unit, the dismounting unit is used for loading and transferring an insulator on a GCB arc extinguish chamber moving contact, and the hoisting unit is installed at the rear end of the working plane of the working platform and used for dismounting and mounting internal components of the GCB arc extinguish chamber moving contact. The above structure assists the maintenance of the moving contact of the GCB arc extinguish chamber, thereby improving the working efficiency and safety of the maintenance of the moving contact of the GCB arc extinguish chamber, and improving the maintenance quality of the GCB arc extinguish chamber.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical component maintenance, and in particular to a GCB arc extinguishing chamber moving contact maintenance system and a use method thereof. Background Art

[0002] GCB, or generator circuit breaker, is an important device used to disconnect or connect high-voltage circuits in power systems. Currently, the disassembly of the moving contacts of the GCB arc extinguishing chamber requires the use of tools such as jacks. The insulators are made of ceramic, which is easily broken. Stress and uneven force must not exist during the disassembly and assembly process. For example, Chinese patent document CN119480498A discloses a GCB arc extinguishing chamber disassembly and maintenance tooling system and maintenance method, which discloses the maintenance of the moving contact module but does not disclose the type of tooling used for auxiliary maintenance of the moving contact module. Therefore, I have proposed a tooling for safely and efficiently completing the maintenance of the moving contacts of the GCB arc extinguishing chamber. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to solve the problems existing in the above-mentioned background technology, provide a GCB arc chamber moving contact maintenance system and a method of use, improve the work efficiency and safety of GCB arc chamber moving contact maintenance, and at the same time improve the quality of GCB maintenance work.

[0004] In order to achieve the above-mentioned technical features, the purpose of the present invention is achieved as follows: A GCB arc extinguishing chamber moving contact maintenance system includes a working platform, a lifting unit, a disassembly unit and a hoisting unit. A movable platform is installed on the working plane of the working platform so as to move back and forth. The lifting unit is located at the front end of the working platform. The lifting unit is connected to the working platform through a longitudinal lifting structure. The disassembly unit can enter the working plane through the lifting unit. The disassembly unit is used to load and transfer the insulators on the GCB arc extinguishing chamber moving contact. The hoisting unit is installed at the rear end of the working plane of the working platform and is used to disassemble and assemble the internal components of the GCB arc extinguishing chamber moving contact.

[0005] A plurality of track wheels are rotatably mounted on the left and right sides of the movable platform, tracks are fixedly mounted on the left and right sides of the working plane, and the track wheels on both sides are respectively placed and mounted on the tracks on both sides.

[0006] The front and rear ends of the working plane are respectively installed with first bearing seats, the two ends of the first screw are respectively connected to the first bearing seats on both sides, one end of the first screw is installed with a driving member to drive the first screw to rotate, and the bottom of the movable platform is installed with a first nut seat, and the first nut seat is screwed together with the first screw.

[0007] The lifting unit is a scissors-type lifting platform, and a lifting plate is installed at one end of the base of the scissors-type lifting platform. The longitudinal lifting structure includes two grooved rails longitudinally arranged at the front end of the working platform, and at least two guide wheels rotatably installed on both sides of the lifting plate, and the guide wheels on both sides are installed in the two grooved rails; the longitudinal lifting structure also includes a push-pull rod, one end of the push-pull rod is connected to the working platform, and the other end is connected to the lifting plate, and the push-pull rod is used to drive the lifting unit to move up and down along the grooved rail.

[0008] The disassembly unit includes a traveling trolley and a clamp unit installed on the traveling trolley, the clamp unit includes a connecting plate, and a groove plate is fixedly installed at both ends of the connecting plate, one end of the top of the groove plate is hinged to one end of the arc plate, and the other end of the top of the groove plate is detachably connected to the other end of the arc plate by a fastener; a space for placing and fixing the insulator is formed between the groove plate and the arc plate.

[0009] A first connecting seat is fixedly installed at the front end of the walking trolley, and a second connecting seat is fixedly installed at the rear end of the movable platform. The first connecting seat and the second connecting seat can be detachably connected by bolts or pins.

[0010] The top of the traveling trolley is connected to the clamping unit through a transverse movement assembly; the transverse movement assembly includes a vertical plate, the two vertical plates are respectively fixedly connected to the front and rear ends of the traveling trolley, two guide rods are fixedly installed between the two vertical plates and a second screw is rotatably installed, two guide sleeves are installed at the lower end of the grooved plate of the clamping unit, the grooved plate is slidably installed on the two guide rods through the two guide sleeves, the second screw is threadedly connected to one of the grooved plates, and a second handle is installed at the front end of the second screw.

[0011] The walking trolley includes a base plate and a top frame, with casters respectively installed at the four corners of the bottom of the base plate, the base plate and the top frame are connected by a lifting assembly, and the clamp unit is installed on the top frame; the lifting assembly includes a sliding sleeve fixedly installed at the four corners of the top of the base plate, and a sliding rod fixedly installed at the four corners of the lower side of the top frame, the sliding rod is slidably inserted into the sliding sleeve, and manual lifts are respectively installed at the front and rear ends of the base plate, the lifting rods of the manual lifts are connected to the top frame, one end of the input shafts of the two manual lifts are connected for transmission through a transmission shaft, and the other end of the input shaft of at least one manual lift is installed with a first handle.

[0012] The lifting unit includes a support leg, a beam, a lifting assembly and a sling. The two support legs are respectively fixedly installed on the left and right sides of the working plane. The two support legs are respectively installed with a jacking assembly. The top of the jacking assembly is jointly installed with a beam, and the sling is installed on the beam; a limiting ring is fixedly installed on the movable platform; the working plane is also installed with clamping devices on both sides of the support legs.

[0013] The method for using the GCB arc extinguishing chamber moving contact maintenance system is used to repair the GCB arc extinguishing chamber moving contact, and the method includes the following steps: S1. Move the movable platform to the front of the working platform and place the GCB arc extinguishing chamber moving contact on the movable platform; S2. Move the movable platform to the rear end of the working platform so that the GCB arc extinguishing chamber moving contact is located below the lifting unit; S3, moving the disassembly unit onto the lifting unit, which then lifts the disassembly unit to be flush with the working plane, and moves the disassembly unit onto the working plane; S4. Remove the connecting bolts of the internal components of the GCB arc extinguishing chamber moving contact and take out the internal components using the lifting unit; S5. Move and support the disassembly unit under the insulator, remove the bolts between the insulator and the GCB arc extinguishing chamber moving contact, and let the insulator fall onto the disassembly unit; S6. Move the disassembly unit and the insulator to the lifting unit, then lower the lifting unit and place the disassembly unit on the ground.

[0014] Compared with the prior art, the present invention adopting the above technical solution has the following outstanding features: The work platform of the present invention is used to support the movement of the movable platform and to install the lifting unit and the hoisting unit. The disassembly unit can be brought onto the work surface via the lifting unit and can also be returned to the ground from the work surface via the lifting unit. The disassembly unit is used to load and transfer insulators on the GCB arc chamber moving contact, and the hoisting unit is used to remove and install the internal components of the GCB arc chamber moving contact. This structure assists in the maintenance of the GCB arc chamber moving contact, thereby improving the efficiency and safety of GCB arc chamber moving contact maintenance work, while also enhancing the quality of GCB maintenance work.

[0015] 2. To ensure the stability and safety of the disassembly unit above the lifting unit, the lifting unit is supported in the middle of the disassembly unit trolley and does not have wheels supporting the trolley. This requires manual pushing when the disassembly unit enters the working plane and when the load insulator enters the disassembly unit from the working plane. However, by fixing a first connecting seat at the front end of the trolley and a second connecting seat at the rear end of the movable platform, the first and second connecting seats are detachably connected by bolts or pins. This allows the movable platform to be driven to pull or push the disassembly unit to move.

[0016] 3. The disassembly unit in the present invention includes a traveling trolley and a clamp unit installed on the traveling trolley. The structure of the grooved plate and the arc plate on the clamp unit can just clamp the annular groove on the insulator, so that the insulator can be stably fixed to the traveling trolley for transfer.

[0017] 4. The disassembly unit in the present invention has a transverse movement assembly, which enables the clamp unit to move along the guide rod to adjust its position, so that the grooved plate is accurately aligned with the annular groove of the outer wall of the insulator.

[0018] 5. The disassembly unit in the present invention also has a lifting assembly, which drives the input shaft of the manual lift to rotate, thereby driving the lifting rod of the manual lift to move up and down, thereby adjusting the lifting of the clamp unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0020] Figure 1 This is a schematic diagram of the state when the present invention is in use.

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention, and the disassembly unit is not shown in the figure.

[0022] Figure 3 It is a schematic diagram of the transmission structure of the movable platform of the present invention.

[0023] Figure 4 It is a structural schematic diagram of the lifting unit of the present invention.

[0024] Figure 5 It is a structural schematic diagram of the disassembly unit of the present invention.

[0025] Figure 6 It is a structural schematic diagram of the lifting unit of the present invention.

[0026] Figure 7 When used in the present invention, the GCB arc extinguishing chamber moving contact is placed on the movable platform.

[0027] Figure 8 When used in the present invention, the GCB arc extinguishing chamber moving contact is moved under the lifting unit.

[0028] Figure 9 A diagram showing the state of placing the disassembly unit onto the lifting unit when used in the present invention.

[0029] Figure 10 When the present invention is used, the disassembly unit is lifted to a state flush with the working plane.

[0030] Figure 11 When used in the present invention, the disassembly unit is moved to the state below the insulator.

[0031] Figure 12 When used in the present invention, the state diagram of the dismantling unit load insulator is when it is moved to the lifting unit.

[0032] Figure 13 A diagram showing the state in which a unit load insulator is disassembled and moved to the ground when used in the present invention.

[0033] Reference numerals: Working platform 100, working plane 110, first bearing seat 111, first screw 112, track 120, movable platform 130, track wheel 131, limiting ring 132, second connecting seat 140, grooved rail 150; Lifting unit 200, base 210, lifting plate 220, guide wheel 230, push-pull rod 240, Disassembly unit 300, bottom plate 310, casters 311, top frame 320, lifting assembly 330, sliding sleeve 331, sliding rod 332, manual lift 333, lifting rod 334, transmission shaft 335, first handle 336, transverse movement assembly 340, vertical plate 341, guide rod 342, second screw rod 343, second handle 344, clamping hoop unit 350, connecting plate 351, grooved plate 352, curved plate 353, fastener 354, guide sleeve 355, first connecting seat 360; Lifting unit 400, support legs 410, crossbeam 420, lifting assembly 430, fixed tube 431, telescopic tube 432, lifting device 433, sling 440, hanger 441, connector 442, rotating head 443, clamping device 450, clamping support 451, clamping screw 452, clamping block 453, third handle 454; GCB arc extinguishing chamber moving contact 500, insulator 510, internal components 520. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0036] Example 1: See also Figure 1-13A GCB arc chamber moving contact maintenance system includes a work platform 100, a lifting unit 200, a disassembly unit 300, and a hoisting unit 400. A movable platform 130 is mounted on the work surface 110 of the work platform 100 for forward and backward movement. The lifting unit 200 is located at the front end of the work platform 100 and is connected to the work platform 100 via a longitudinal lifting structure. The hoisting unit 400 is mounted at the rear end of the work surface 110 of the work platform 100. The work platform 100 of the present invention is used to support the movement of the movable platform 130 and to install the lifting unit 200 and the hoisting unit 400. The disassembly unit 300 can enter the work surface 110 through the lifting unit 200 and can also return to the ground from the work surface 110 through the lifting unit 200. The disassembly unit 300 is used to load and transfer the insulator 510 on the GCB arc chamber moving contact 500. The hoisting unit 400 is used to disassemble and install the internal components 520 of the GCB arc chamber moving contact 500. The above structure assists in the maintenance of the GCB arc extinguishing chamber moving contact 500, thereby improving the work efficiency and safety of the GCB arc extinguishing chamber moving contact maintenance and improving the quality of the GCB maintenance work.

[0037] See also Figure 2 、 3 The movable platform 130 has a plurality of track wheels 131 rotatably mounted on the left and right sides, and the working plane 110 has a track 120 fixedly mounted on the left and right sides. The track wheels 131 on both sides are respectively placed on the track 120 on both sides. Through the above structure, the movable platform 130 can move back and forth in a directional manner on the working plane 110.

[0038] Specifically, see Figure 3 In this embodiment, the track 120 is made of C-shaped steel, the notches of the track 120 on both sides are arranged opposite to each other, and the track wheel 131 is a single-sided track wheel. The single-sided track wheel is installed and connected to the movable platform 130 through the central wheel axle, and the track wheel 131 extends into and is supported on the track 120.

[0039] See also Figure 2 、 3 The front and rear ends of the working plane 110 are respectively mounted with first bearing blocks 111. The ends of a first screw rod 112 are respectively connected to the first bearing blocks 111 on both sides. A driving member is mounted on one end of the first screw rod 112 to drive the rotation of the first screw rod 112. A first nut seat (not shown) is mounted on the bottom of the movable platform 130. The first nut seat is screwed to the first screw rod 112. The first nut seat rotates the first screw rod 112 via the driving member, thereby driving the movable platform 130 to move on the working plane 110. In this embodiment, the driving member can be a handwheel or a reduction motor.

[0040] See also Figure 4The lifting unit 200 is a scissor lift platform that utilizes existing technology. A lifting plate 220 is mounted on one end of the base 210 of the scissor lift platform. The longitudinal lifting structure includes two grooved rails 150 longitudinally disposed at the front end of the work platform 100, and at least two guide wheels 230 rotatably mounted on either side of the lifting plate 220. The guide wheels 230 are mounted within the two grooved rails 150. The longitudinal lifting structure also includes a push-pull rod 240, one end of which is connected to the work platform 100 and the other end to the lifting plate 220. The push-pull rod 240 is used to drive the lifting unit 200 up and down along the grooved rails 150.

[0041] By fixing a lifting plate 220 at one end of the base 210, two guide wheels 230 are installed on both sides of the lifting plate 220, and the guide wheels 230 on both sides are respectively installed in the grooved rails 150 on both sides, so that the scissor lift platform can move along the grooved rails 150. The push-pull rod 240 can use hydraulic oil, a cylinder, or an electric cylinder. By extending and retracting the push-pull rod 240, the lifting plate 220 is driven to rise and fall, thereby driving the scissor lift platform to rise and fall.

[0042] When in use, in order to facilitate the disassembly unit 300 to enter the upper part of the lifting unit 200, the scissor lift platform is in a folded state. Figure 9 , then the disassembly unit 300 enters the top of the lifting unit 200, and the disassembly unit 300 is lifted by the push-pull rod 240. However, at this time, the casters at the bottom of the disassembly unit 300 are not flush with the working plane 110. At this time, the scissor lift platform is opened, and the disassembly unit 300 is further lifted until the casters at the bottom of the disassembly unit 300 are flush with the working plane 110. Figure 10 shown.

[0043] See also Figure 5 The disassembly unit 300 includes a traveling trolley and a clamp unit 350 installed on the traveling trolley. The clamp unit 350 includes a connecting plate 351. A groove plate 352 is fixedly installed at both ends of the connecting plate 351. One end of the top of the groove plate 352 is hinged to one end of the arc plate 353. The other end of the top of the groove plate 352 is detachably connected to the other end of the arc plate 353 through a fastener 354. A space for placing and fixing the insulator 510 is formed between the groove plate 352 and the arc plate 353. The structure of the groove plate 352 and the arc plate 353 can just fit into the annular groove on the insulator 510, so that the insulator 510 can be stably fixed to the traveling trolley for transfer. Figure 12 shown.

[0044] Further, see Figure 2 、 35. A first connecting seat 360 is fixedly installed at the front end of the traveling trolley, and a second connecting seat 140 is fixedly installed at the rear end of the movable platform 130. The first connecting seat 360 and the second connecting seat 140 can be detachably connected by bolts or pins.

[0045] See also Figure 9 To ensure the stability and safety of the disassembly unit 300 above the lifting unit 200, the lifting unit 200 is supported in the middle of the disassembly unit 300 trolley and does not have wheels supporting the trolley. This requires manual pushing when the disassembly unit 300 enters the working plane 110, and when the load insulator 510 enters the disassembly unit 300 from the working plane 110. However, by fixing the first connecting base 360 ​​to the front end of the trolley and fixing the second connecting base 140 to the rear end of the movable platform 130, the first connecting base 360 ​​and the second connecting base 140 are detachably connected by bolts or pins. This allows the movable platform 130 to be driven to pull or push the disassembly unit 300 to move.

[0046] Further, see Figure 5 The top of the trolley is connected to the clamp unit 350 via a transverse assembly 340. The transverse assembly 340 includes two vertical plates 341, each fixedly attached to the front and rear ends of the trolley. Two guide rods 342 and a second screw 343 are fixedly mounted between the two vertical plates 341. Two guide sleeves 355 are mounted on the lower end of the grooved plate 352 of the clamp unit 350. The grooved plate 352 is slidably mounted on the two guide rods 342 via the two guide sleeves 355. The second screw 343 is threadedly connected to one of the grooved plates 352. A second handle 344 is mounted on the front end of the second screw 343. Rotating the second handle 344 drives the second screw 343 to rotate. Since the second screw 343 is threadedly connected to one of the grooved plates 352, the clamp unit 350 can be moved and adjusted along the guide rods 342, so that the grooved plate 352 is accurately aligned with the annular groove on the outer wall of the insulator 510.

[0047] Further, see Figure 5The trolley includes a base plate 310 and a top frame 320. Casters 311 are installed at the four corners of the bottom of the base plate 310. The base plate 310 and the top frame 320 are connected by a lifting assembly 330, and the clamp unit 350 is installed on the top frame 320. The lifting assembly 330 includes sliding sleeves 331 fixedly installed at the four corners of the top of the base plate 310 and sliding rods 332 fixedly installed at the four corners of the lower side of the top frame 320. The sliding rods 332 slide into the sliding sleeves 331. Manual lifts 333 are installed at the front and rear ends of the base plate 310. The lifting rods 334 of the manual lifts 333 are connected to the top frame 320. One end of the input shaft of the two manual lifts 333 is connected for transmission via a transmission shaft 335. The other end of the input shaft of at least one manual lift 333 is installed with a first handle 336. The trolley can travel via the casters 311, and the height of the trolley can be adjusted via the lifting assembly 330.

[0048] By rotating the first handle 336, the input shaft of the manual lift 333 is driven to rotate. Since the input shafts of the two manual lifts 333 are connected by a transmission shaft 335, the two manual lifts 333 can operate synchronously. By driving the input shaft of the manual lift 333 to rotate, the lifting rod 334 of the manual lift 333 is driven to rise and fall, thereby adjusting the height of the clamp unit 350.

[0049] When in use, first lower the height of the trolley through the lifting assembly 330 so that the disassembly unit 300 can enter under the insulator 510, then adjust the position of the clamp unit 350 through the transverse movement assembly 340, and then raise the height of the trolley through the lifting assembly 330 so that the clamp unit 350 is supported in the annular groove of the outer wall of the insulator 510.

[0050] See also Figure 6 The hoisting unit 400 includes legs 410, a crossbeam 420, a lifting assembly 430, and a lifting device 440. The two legs 410 are fixedly mounted on the left and right sides of the working plane 110, respectively. The two legs 410 are each mounted with a lifting assembly 430. The tops of the lifting assemblies 430 are mounted with a crossbeam 420, and the lifting device 440 is mounted on the crossbeam 420. This structure facilitates maintenance of the internal components 520 of the GCB arc extinguishing chamber moving contact 500.

[0051] In this embodiment, see Figure 6The lifting assembly 430 includes a fixed tube 431, a telescopic tube 432, and a lifting device 433. The fixed tube 431 is fixedly mounted on the support leg 410. The two telescopic tubes 432 are fixedly mounted on the lower ends of the crossbeam 420. The lower ends of the telescopic tubes 432 slide into the fixed tube 431. The lifting devices 433 are fixedly mounted on the fixed tubes 431 on both sides. The telescopic ends of the lifting devices 433 are connected to the crossbeam 420. The lifting devices 433 can be electric cylinders or hydraulic cylinders. The synchronous operation of electric cylinders and hydraulic cylinders is a conventional technical means in the fields of servo control or hydraulic and pneumatic fields and will not be described in detail here.

[0052] In this embodiment, see Figure 6 Hanger 440 includes a hanger 441, a connector 442, and a rotating head 443. Hanger 441 is mounted on the underside of beam 420 via rotating head 443. Two connectors 442 are fixed to the underside of hanger 441 at both ends. Connectors 442 are used to adapt to and connect with the internal components 520 of the GCB interrupter moving contact 500. Rotating head 443 enables hanger 441 to rotate, thereby adapting the connection position of connectors 442 to the internal components 520. In one embodiment, rotating head 443 can be a pin with a flange at the upper end. The lower end of the pin passes downward from the top of hanger 441 and is fixedly connected to hanger 441.

[0053] In order to align the internal components 520 of the GCB interrupter moving contact 500 with the hanger 440, see Figure 2 、 3 A limiting ring 132 is fixedly installed on the movable platform 130, and the limiting ring 132 is used to position the GCB arc extinguishing chamber moving contact 500.

[0054] Furthermore, to prevent the GCB interrupter movable contact 500 from being lifted simultaneously when the internal components 520 are lifted out, clamping devices 450 are installed on both sides of the legs 410 on the working surface 110. During maintenance, the GCB interrupter movable contact 500 is clamped and fixed to the movable platform 130 by the clamping devices 450.

[0055] In this embodiment, see Figure 2 The clamping device 450 includes a clamping support 451, a clamping screw 452, a clamping block 453, and a third handle 454. The clamping support 451 is welded to the working surface 110, and the clamping screw 452 is laterally screwed to the clamping support 451. One end of the clamping screw 452, located on the movable platform 130, is rotatably mounted with the clamping block 453 via a bearing, while the other end is fixedly mounted with the third handle 454. The third handle 454 drives the clamping screw 452 to rotate, thereby driving the clamping block 453 to move laterally.

[0056] Example 2: The method for using the GCB arc extinguishing chamber moving contact maintenance system is used to repair the GCB arc extinguishing chamber moving contact 500, and the method includes the following steps: S1, see Figure 7 , move the movable platform 130 to the front end of the working platform 100 , and place the GCB arc extinguishing chamber moving contact 500 on the movable platform 130 .

[0057] S2, see Figure 8 , move the movable platform 130 to the rear end of the working platform 100 so that the GCB arc extinguishing chamber moving contact 500 is located below the hoisting unit 400.

[0058] S3, see Figure 9 、 10 , 11. Move the disassembly unit 300 onto the lifting unit 200. Then the lifting unit 200 lifts the disassembly unit 300 to be flush with the working plane 110, and moves the disassembly unit 300 onto the working plane 110.

[0059] It should be noted that steps S3 can be performed simultaneously with S1 and S2. Specifically, when the GCB interrupter moving contact 500 is placed on the movable platform 130, the disassembly unit 300 is moved onto the lifting unit 200. The lifting unit 200 lifts the disassembly unit 300 to be flush with the working surface 110. The first connecting seat 360 and the second connecting seat 140 are then connected via bolts or pins. When the movable platform 130 is moved to the rear end of the working platform 100, the disassembly unit 300 is simultaneously moved from the lifting unit 200 to the working surface 110 of the working platform 100. At this point, the curved plate 353 is in the open position.

[0060] S4, see Figure 1 , remove the connecting bolts of the internal component 520 of the GCB arc extinguishing chamber moving contact 500, and take out the internal component 520 through the lifting unit 400.

[0061] S5, see Figure 1 , move and support the disassembly unit 300 to the bottom of the insulator 510, remove the bolts between the insulator 510 and the GCB arc extinguishing chamber moving contact 500, the insulator 510 falls on the disassembly unit 300, and close and lock the arc plate 353.

[0062] S6, see Figure 12 、 13 , move the disassembly unit 300 and the insulator 510 to the lifting unit 200, then the lifting unit 200 descends and places the disassembly unit 300 on the ground.

[0063] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and are not intended to limit the scope of the present invention. Any modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A GCB arc extinguishing chamber moving contact maintenance system, characterized by: The invention comprises a working platform (100), a lifting unit (200), a disassembly unit (300) and a hoisting unit (400); a movable platform (130) is installed on the working plane (110) of the working platform (100) so as to be movable forward and backward; the lifting unit (200) is located at the front end of the working platform (100); the lifting unit (200) is connected to the working platform (100) via a longitudinal lifting structure; the disassembly unit (300) can enter the working plane (110) through the lifting unit (200); the disassembly unit (300) is used to load and transfer the insulator (510) on the GCB arc chamber moving contact (500); the hoisting unit (400) is installed at the rear end of the working plane (110) of the working platform (100) and is used to disassemble and assemble the internal components (520) of the GCB arc chamber moving contact (500).

2. The GCB arc extinguishing chamber moving contact maintenance system according to claim 1, characterized in that: A plurality of track wheels (131) are rotatably mounted on the left and right sides of the movable platform (130), and tracks (120) are fixedly mounted on the left and right sides of the working plane (110), respectively. The track wheels (131) on both sides are respectively placed on the tracks (120) on both sides.

3. The GCB arc extinguishing chamber moving contact maintenance system according to claim 2, characterized in that: The front and rear ends of the working plane (110) are respectively installed with first bearing seats (111), the two ends of the first screw rod (112) are respectively connected to the first bearing seats (111) on both sides, one end of the first screw rod (112) is installed with a driving member to drive the first screw rod (112) to rotate, and the bottom of the movable platform (130) is installed with a first nut seat, and the first nut seat is screwed together with the first screw rod (112).

4. The GCB arc extinguishing chamber moving contact maintenance system according to claim 1, characterized in that: The lifting unit (200) is a scissor lift platform, and a lifting plate (220) is installed at one end of the base (210) of the scissor lift platform. The longitudinal lifting structure includes two groove rails (150) longitudinally arranged at the front end of the working platform (100), and at least two guide wheels (230) rotatably installed on both sides of the lifting plate (220), and the guide wheels (230) on both sides are installed in the two groove rails (150); the longitudinal lifting structure also includes a push-pull rod (240), one end of the push-pull rod (240) is connected to the working platform (100), and the other end is connected to the lifting plate (220), and the push-pull rod (240) is used to drive the lifting unit (200) to move up and down along the groove rail (150).

5. The GCB arc extinguishing chamber moving contact maintenance system according to claim 1, characterized in that: The disassembly unit (300) comprises a trolley and a clamp unit (350) mounted on the trolley, the clamp unit (350) comprising a connecting plate (351), a groove plate (352) being fixedly mounted at both ends of the connecting plate (351), one end of the top of the groove plate (352) being hinged to one end of the arc plate (353), and the other end of the top of the groove plate (352) being detachably connected to the other end of the arc plate (353) via a fastener (354); a space for placing and fixing the insulator (510) is formed between the groove plate (352) and the arc plate (353).

6. The GCB arc extinguishing chamber moving contact maintenance system according to claim 5, characterized in that: A first connecting seat (360) is fixedly mounted on the front end of the walking trolley, and a second connecting seat (140) is fixedly mounted on the rear end of the movable platform (130). The first connecting seat (360) and the second connecting seat (140) can be detachably connected via bolts or pins.

7. The GCB arc extinguishing chamber moving contact maintenance system according to claim 5 or 6, characterized in that: The top of the traveling trolley is connected to the hoop unit (350) via a transverse moving assembly (340); the transverse moving assembly (340) comprises a vertical plate (341), two vertical plates (341) are respectively fixed to the front and rear ends of the traveling trolley, two guide rods (342) are fixedly installed between the two vertical plates (341) and a second screw rod (343) is rotatably installed, two guide sleeves (355) are installed at the lower end of the grooved plate (352) of the hoop unit (350), the grooved plate (352) is slidably installed on the two guide rods (342) via the two guide sleeves (355), the second screw rod (343) is threadedly connected to one of the grooved plates (352), and a second handle (344) is installed at the front end of the second screw rod (343).

8. The GCB arc extinguishing chamber moving contact maintenance system according to claim 5 or 6, characterized in that: The walking trolley comprises a bottom plate (310) and a top frame (320), casters (311) are respectively installed at the four corners of the bottom of the bottom plate (310), the bottom plate (310) and the top frame (320) are connected via a lifting assembly (330), and the hoop unit (350) is installed on the top frame (320); the lifting assembly (330) comprises a sliding sleeve (331) fixedly installed at the four corners of the top of the bottom plate (310), and a hoop unit (350) fixedly installed on the lower side of the top frame (320). Slide rods (332) are provided at the four corners and are slidably inserted into the sliding sleeves (331). Manual lifts (333) are respectively installed at the front and rear ends of the bottom plate (310). The lifting rods (334) of the manual lifts (333) are connected to the top frame (320). One end of the input shafts of the two manual lifts (333) is connected for transmission via a transmission shaft (335). The other end of the input shaft of at least one manual lift (333) is installed with a first handle (336).

9. The GCB arc extinguishing chamber moving contact maintenance system according to claim 1, characterized in that: The hoisting unit (400) includes a support leg (410), a crossbeam (420), a lifting assembly (430) and a sling (440), wherein the two support legs (410) are fixedly mounted on the left and right sides of the working plane (110), respectively, and the two support legs (410) are respectively mounted with a lifting assembly (430), the tops of the jacking assemblies (430) are jointly mounted with a crossbeam (420), and the sling (440) is mounted on the crossbeam (420); a limiting ring (132) is fixedly mounted on the movable platform (130); and the working plane (110) is further mounted with a clamping device (450) on both sides of the support legs (410).

10. A method for using the GCB arc extinguishing chamber moving contact maintenance system according to any one of claims 1 to 9 for repairing a GCB arc extinguishing chamber moving contact (500), the method comprising the following steps: S1. Move the movable platform (130) to the front end of the working platform (100), and place the GCB arc extinguishing chamber movable contact (500) on the movable platform (130); S2, moving the movable platform (130) to the rear end of the working platform (100) so that the GCB arc extinguishing chamber moving contact (500) is located below the hoisting unit (400); S3, moving the disassembly unit (300) onto the lifting unit (200), and then the lifting unit (200) lifts the disassembly unit (300) to be flush with the working plane (110), and moving the disassembly unit (300) onto the working plane (110); S4. Remove the connecting bolts of the internal component (520) of the GCB arc extinguishing chamber moving contact (500), and take out the internal component (520) through the lifting unit (400); S5. Move and support the disassembly unit (300) below the insulator (510), remove the bolts between the insulator (510) and the GCB arc extinguishing chamber moving contact (500), and let the insulator (510) fall onto the disassembly unit (300); S6. Move the disassembly unit (300) and the insulator (510) onto the lifting unit (200), then lower the lifting unit (200) and place the disassembly unit (300) on the ground.

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