Mobile maintenance platform for circuit breaker

Abstract

The invention relates to a circuit breaker mobile maintenance platform which comprises a mobile base and a lifting turnover workbench, and universal rotation driving wheels are arranged on the two sides of the lower portion of the mobile base and used for driving the whole mobile base to walk; a set of lifting turnover workbenches are symmetrically arranged above the movable base, each lifting turnover workbench comprises a rack installed on the movable base, a lifting mechanism located at the top of the rack and a driving rotation mechanism, the side face of each driving rotation mechanism is in longitudinal sliding connection with the corresponding rack, and the top of each driving rotation mechanism is connected with the corresponding lifting mechanism. A supporting frame is installed on the outer side of the driving rotation mechanism and used for bearing and fixing the circuit breaker body. The overall height adjusting function of the driving slewing mechanism, the supporting frame and the circuit breaker body is achieved through the lifting mechanism; the overall overturning function of the support frame and the circuit breaker body is realized by driving the slewing mechanism; the device has the advantages of being reasonable in structure, flexible to move, adjustable in height, capable of achieving self-overturning type overhauling, time-saving, labor-saving and high in efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of circuit breakers, and in particular relates to a mobile maintenance platform for circuit breakers. Background Art

[0002] A circuit breaker is a switching device that can close, carry and interrupt current under normal circuit conditions, and can close, carry and interrupt current under abnormal circuit conditions (including short circuit conditions) within a specified time. Circuit breakers can be used to distribute electrical energy, start asynchronous motors infrequently, and protect power lines and motors. When they experience serious overloads, short circuits, undervoltages, and other faults, they can automatically cut off the circuit. Its function is equivalent to the combination of a fuse switch and an over-underheating relay. Currently, substations mostly use removable central switchgear, which is moved using a circuit breaker trolley. The circuit breaker is pulled to the maintenance position for maintenance. When a 10kV circuit breaker is repaired on a chassis vehicle, the circuit breaker needs to be turned over before the operation can be carried out. At least 4 to 5 workers are required to complete the operation. There are great risks to personnel and equipment during the operation. Due to the lack of a dedicated working platform, maintenance is very inconvenient, resulting in difficulty in replacing accessories at the bottom of the circuit breaker during maintenance, which is time-consuming, labor-intensive, and inefficient. Therefore, it is very necessary to provide a mobile circuit breaker maintenance platform with a reasonable structure, flexible mobility, adjustable height, self-turning maintenance, time-saving, labor-saving, and high efficiency. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a mobile circuit breaker maintenance platform which has a reasonable structure, flexible movement, adjustable height, self-turning maintenance, time-saving, labor-saving and high efficiency.

[0004] The objective of the present invention is achieved as follows: a mobile maintenance platform for circuit breaker comprises a mobile base and a lifting and flipping workbench, wherein universal rotating drive wheels are provided on both sides of the lower side of the mobile base for driving the mobile base to move as a whole; a group of lifting and flipping workbench are symmetrically provided above the mobile base, and the lifting and flipping workbench comprises a frame installed on the mobile base, a lifting mechanism located on the top of the frame, and a driving and rotating mechanism, the side of the driving and rotating mechanism is longitudinally slidably connected to the frame, and the top is connected to the lifting mechanism, and a support frame is installed on the outer side of the driving and rotating mechanism, and the support frame is used to support and fix the circuit breaker body; the overall height adjustment function of the driving and rotating mechanism, the support frame and the circuit breaker body is realized by the lifting mechanism; the overall flipping function of the support frame and the circuit breaker body is realized by the driving and rotating mechanism.

[0005] The frame includes a group of columns, the bottoms of the columns are fixedly connected to the mobile base through the base, the sides of the columns are longitudinally installed with linear rail mounting plates, and the linear rail mounting plates are provided with guide rails; the tops of the columns are horizontally provided with beams for installing lifting mechanisms.

[0006] The lifting mechanism includes a lifting reducer installed on the crossbeam, and main shafts are installed at the output ends on both sides of the lifting reducer. A driving double sprocket is provided on the outside of the main shaft, and the outer ends of the main shaft are connected to the bearing seat shaft. A driven double sprocket is provided behind the driving double sprocket, and the driven double sprocket is installed on the crossbeam through a support seat.

[0007] The driving double sprocket and the driven double sprocket realize power transmission through a double-row chain. One end of the double-row chain is fixedly connected to a counterweight through a connector, and the other end is fixedly connected to a driving rotary mechanism through a connector.

[0008] The driving rotary mechanism includes a driving end sliding plate fixedly connected to the connecting head at the end of the double-row chain, the inner side of the driving end sliding plate is slidingly connected to the corresponding guide rail through a sliding seat, a rotary gear reducer is provided on the outer side of the driving end sliding plate, an inner gear ring rotary support connected to the rotary gear reducer by power is provided on the inner side of the driving end sliding plate, and the inner gear ring rotary support is connected to the support frame.

[0009] The support frame includes a support plate connected to the inner gear ring slewing bearing, and support beams for supporting the circuit breaker body are provided on both sides above the support plate. A clamping and fastening assembly for fixing the circuit breaker body is provided on the inner side of the support plate relative to a group of support beams.

[0010] The clamping and fastening assembly includes a mounting column fixedly connected to the support plate, the mounting column is movably connected to the base plate through a ball joint, elastic clamping plates are provided on both sides of the base plate, clamping rubber blocks are provided on the inner sides of the elastic clamping plates, and an opening is opened in the middle of the elastic clamping plate.

[0011] A fixed plate and a movable plate are respectively provided on the front and rear sides of the bottom plate surface, and the fixed plate is connected to the movable plate by a hand-tightened screw running through the inside of the fixed plate. A group of first connecting rods and second connecting rods arranged in an "eight" shape are movably installed on the upper surfaces of the movable plate and the fixed plate, and hinges are provided at the corresponding outer connections of the first connecting rod and the second connecting rod. Fastening plates are provided on the outer sides of the elastic clamping plates, and the upper ends of the fastening plates are connected to the hinges through the light rods, the middle parts are connected to the elastic clamping plates through the movable shaft seat, and the tail ends are at the opening and are provided with fastening claws.

[0012] The universal rotating drive wheel includes a bracket connected to the bottom surface of the mobile base, a travel drive assembly is provided in the middle of the bracket, a rotation drive assembly is provided behind the travel drive assembly, and a travel wheel assembly is provided below the bracket. The travel wheel assembly is embedded in an opening opened inside the bracket through a bearing ring.

[0013] A large gear is provided above the bearing ring, and a small gear is meshed with the back of the large gear. The small gear is dynamically connected to the rotation drive assembly. A side opening frame is provided above the large gear, and a center gear is provided inside the side opening frame. The center gear is dynamically connected to the travel drive assembly, and a transmission gear is meshed with the front of the center gear. A small bevel gear is connected to the shaft below the transmission gear. A wheel frame is installed on the bottom surface of the bearing ring, and a travel wheel body is installed inside the wheel frame. A large bevel gear is installed on the side of the travel wheel body. The small bevel gear is located below the bearing ring and the lower end of the shaft of the small bevel gear is connected to the wheel frame through a bearing ring. The small bevel gear and the large bevel gear are meshed with each other.

[0014] Beneficial effects of the present invention: The present invention is a mobile maintenance platform for circuit breakers, especially a mobile maintenance platform suitable for ZW-32 type circuit breakers. It is difficult to replace accessories at the lower part of the 10kV ZW-32 type circuit breaker during maintenance. During use, the device of the present invention is first moved to a suitable position by the universal rotating drive wheel located at the bottom of the mobile base. The device is easy to move and can be moved to a suitable place after use without occupying maintenance space. The support frame of the lifting and flipping workbench is used to place and support the circuit breaker body, and the circuit breaker body is effectively and reliably fixed by clamping and fastening components to improve stability. Then, it is adjusted to a suitable height under the action of the lifting mechanism. The maintenance work of the circuit breaker body is facilitated. The circuit breaker body is flipped by using the driving rotary mechanism. The upside-down placement makes it easy to disassemble the lower circuit breaker housing, which is more convenient to use, greatly facilitates the maintenance work, reduces the burden on maintenance personnel, and speeds up the maintenance work. The present invention can be applied to circuit breakers of different heights and different specifications, has strong versatility, is easy to use, ensures safety and improves work efficiency, and can also realize circuit breaker overhaul and on-site testing of circuit breaker operation status, thereby improving the work efficiency of operators and reducing the labor intensity of operators. The present invention has the advantages of reasonable structure, flexible movement, adjustable height, self-flip maintenance, time-saving, labor-saving and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the present invention.

[0016] Figure 2 It is a structural schematic diagram of the ZW-32 type circuit breaker of the present invention.

[0017] Figure 3 A three-dimensional diagram of the lifting and turning workbench of the present invention Figure 1 .

[0018] Figure 4 A three-dimensional diagram of the lifting and turning workbench of the present invention Figure 2 .

[0019] Figure 5A schematic structural diagram of the clamping and fastening assembly of the present invention Figure 1 .

[0020] Figure 6 A schematic structural diagram of the clamping and fastening assembly of the present invention Figure 2 .

[0021] Figure 7 It is a structural schematic diagram of the universal rotating drive wheel of the present invention.

[0022] Figure 8 This is an exploded view of the universal rotary drive wheel of the present invention.

[0023] In the figure: 1, mobile base 2, universal rotary drive wheel 21, bracket 22, travel drive assembly 23, rotary drive assembly 24, travel wheel assembly 25, opening 26, bearing ring 27, large gear 28, small gear 29, side opening frame 201, central gear 202, transmission gear 203, small bevel gear 204, wheel frame 205, travel wheel body 206, bearing ring 207, large bevel gear 3, lifting and turning workbench 4, frame 41, column 42, base 43, linear rail mounting plate 44, guide rail 45, beam 5, lifting mechanism 51, lifting reducer 52, main shaft 53, active double sprocket 54, bearing seat 55, driven double sprocket 56, support seat 57, double row chain 58, counterweight 59, Connector 6, drive rotary mechanism 61, drive end sliding plate 62, slide 63, rotary gear reducer 64, inner ring gear slewing bearing 7, support frame 71, support plate 72, support beam 73, clamping and fastening assembly 31, mounting column 32, ball joint 33, base plate 34, elastic clamping plate 35, clamping rubber block 36, opening 37, fixed plate 38, hand screw 39, movable plate 301, first connecting rod 302, second connecting rod 303, hinge 304, fastening plate 305, polished rod 306, movable shaft seat 307, fastening claw 8, circuit breaker body a, mounting foot b, box body c, lifting ring d, vacuum interrupter e, high voltage input terminal f, epoxy insulator g, current transformer h, high voltage output terminal. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings. Example

[0025] like Figure 1-8As shown, a mobile maintenance platform for circuit breaker includes a mobile base 1 and a lifting and flipping workbench 3. Universal rotating drive wheels 2 are provided on both sides of the lower side of the mobile base 1 for driving the mobile base 1 to move as a whole; a group of lifting and flipping workbench 3 are symmetrically provided above the mobile base 1, and the lifting and flipping workbench 3 includes a frame 4 installed on the mobile base 1, a lifting mechanism 5 located on the top of the frame 4 and a driving and rotating mechanism 6. The side of the driving and rotating mechanism 6 is longitudinally slidably connected to the frame 4 and the top is connected to the lifting mechanism 5, and a support frame 7 is installed on the outer side of the driving and rotating mechanism 6. The support frame 7 is used to support and fix the circuit breaker body 8; the overall height adjustment function of the driving and rotating mechanism 6, the support frame 7 and the circuit breaker body 8 is realized by the lifting mechanism 5; the overall flipping function of the support frame 7 and the circuit breaker body 8 is realized by the driving and rotating mechanism 6.

[0026] The frame 4 includes a group of columns 41, the bottoms of the columns 41 are fixedly connected to the mobile base 1 through the base 42, the sides of the columns 41 are longitudinally installed with linear rail mounting plates 43, and the linear rail mounting plates 43 are provided with guide rails 44; the tops of the columns 41 are transversely provided with crossbeams 45 for installing the lifting mechanism 5.

[0027] The lifting mechanism 5 includes a lifting reducer 51 installed on the crossbeam 45, and the output ends on both sides of the lifting reducer 51 are installed with main shafts 52. A driving double sprocket 53 is provided on the outside of the main shaft 52. The outer ends of the main shaft 52 are connected to the bearing seat 54 axis. A driven double sprocket 55 is provided behind the driving double sprocket 53, and the driven double sprocket 55 is installed on the crossbeam 45 through a support seat 56.

[0028] The driving double sprocket 53 and the driven double sprocket 55 transmit power via a double-row chain 57 . One end of the double-row chain 57 is fixedly connected to a counterweight 58 via a connector 59 , and the other end is fixedly connected to the driving rotary mechanism 6 via a connector 59 .

[0029] In this embodiment, the working principle of the lifting mechanism is: start the lifting reducer, the lifting reducer drives the active double sprocket to rotate through the main shaft, the active double sprocket transmits power through the driven double sprocket and the double-row chain, and cooperates with the counterweight to realize the overall height adjustment of the driving rotary mechanism, the support frame and the circuit breaker body. The driving rotary mechanism is connected to the guide rail on the slide and the column through longitudinal sliding, which can ensure that the overall lifting process is more stable and reliable, and the counterweight is convenient for balancing the weight of the circuit breaker body after it is placed and fixed on the support frame, ensuring that the slide and the guide rail can be reliably matched in the vertical direction, further improving the stability of the lifting process.

[0030] The driving rotating mechanism 6 includes a driving end sliding plate 61 fixedly connected to the connecting head 59 at the end of the double-row chain 57. The inner side of the driving end sliding plate 61 is slidingly connected to the corresponding guide rail 44 through a slide seat 62. A rotating gear reducer 63 is provided on the outer side of the driving end sliding plate 61. An inner ring gear rotating support 64 that is power-connected to the rotating gear reducer 63 is provided on the inner side of the driving end sliding plate 61. The inner ring gear rotating support 64 is connected to the support frame 7.

[0031] In this embodiment, the working principle of the driving rotary mechanism is as follows: the rotary gear reducer is started, and the rotary gear reducer realizes the rotation of the inner ring gear slewing support through the driving gear at the output end cooperating with the ring gear inside the inner ring gear slewing support, and then drives the support frame and the circuit breaker body fixed on the support frame to turn upside down through the inner ring gear slewing support, so as to facilitate maintenance operations; of course, in actual use, the rotating parts of the rotary gear reducer and the inner ring gear slewing support can also be replaced by rotating shafts and bearings (such as rolling bearings, sliding bearings and slewing support, etc.), couplings (such as rigid couplings, elastic couplings, universal joints), components that transmit rotational motion and torque through gear meshing (such as spur gears, helical gears, worm gears), belts and sprockets (rotation is transmitted through friction or meshing between belts / chains and pulleys / sprockets), and other structures that can realize corresponding functions.

[0032] The support frame 7 includes a support plate 71 connected to the inner ring gear slewing bearing 64, and support beams 72 for supporting the circuit breaker body 8 are provided on both sides above the support plate 71. A clamping and fastening assembly 73 for fixing the circuit breaker body 8 is provided on the inner side of the support plate 71 relative to a group of support beams 72.

[0033] The clamping and fastening assembly 73 includes a mounting column 31 fixedly connected to the support plate 71, and the mounting column 31 is movably connected to the base plate 33 through a ball joint 32. Elastic clamping plates 34 are provided on both sides of the base plate 33, and clamping rubber blocks 35 are provided on the inner side of the elastic clamping plates 34. An opening 36 is opened in the middle of the elastic clamping plate 34.

[0034] A fixed plate 37 and a movable plate 39 are respectively provided on the front and rear sides of the surface of the bottom plate 33. The fixed plate 37 is connected to the movable plate 39 by a hand-tightened screw 38 running through the inside of the fixed plate 37. A group of first connecting rods 301 and second connecting rods 302 arranged in an "eight" shape are movably installed on the upper surfaces of the movable plate 39 and the fixed plate 37. A hinge 303 is provided at the corresponding outer connection of the first connecting rod 301 and the second connecting rod 302. A fastening plate 304 is provided on the outer side of the elastic clamping plate 34. The upper end of the fastening plate 304 is connected to the hinge 303 through a light rod 305, the middle part is connected to the elastic clamping plate 34 through a movable shaft seat 306, the tail end is at the opening 36 and the tail end is provided with a fastening claw 307.

[0035] In this embodiment, the working principle of the clamping and fastening assembly is as follows: first, the mounting foot of the circuit breaker body is placed on the joist, and then the mounting foot is reliably clamped and fixed by the clamping and fixing assembly. First, the circuit breaker body is clamped by a group of elastic clamping plates and clamping rubber blocks. Then, the hand screw is tightened. The hand screw drives the movable plate to move away from the fixed plate. During the movement of the movable plate, it cooperates with the fixed plate to drive the first connecting rod and the second connecting rod to expand outward. When the first connecting rod and the second connecting rod move, they drive the upper part of the fastening plate to move outward. The middle part of the fastening plate is connected to the elastic clamping plate through a movable shaft seat, and the lower part of the fastening plate will be tightened inward, and the circuit breaker body will be reliably clamped and fixed by the fastening claws. In actual use, the clamping and fastening effect can be further improved by providing anti-slip pads, anti-slip protrusions, anti-slip spikes or other anti-slip structures or materials on the surface of the fastening claws; of course, in actual use, the clamping and fastening components can also be replaced with bolt and nut assemblies, C-type clamps / G-type clamps, quick clamps, vises, universal clamps, U-bolts and other fixing workpieces that can achieve the corresponding fixing effect.

[0036] The present invention is a mobile maintenance platform for circuit breakers, especially a mobile maintenance platform for ZW-32 type circuit breakers. It is difficult to replace accessories at the lower part of the 10kV ZW-32 type circuit breaker during maintenance. During use, the device of the present invention is first moved to a suitable position by the universal rotating drive wheel 2 located at the bottom of the mobile base 1. It is easy to move and can be moved to a suitable place after use without occupying maintenance space. The support frame 7 of the lifting and flipping workbench 3 is used to place and support the circuit breaker body 8, and the circuit breaker body 8 is effectively and reliably fixed by the clamping and fastening assembly 73 to improve stability. Then, it is adjusted to a suitable height under the action of the lifting mechanism 5. In order to facilitate During the maintenance of the circuit breaker body 8, the circuit breaker body 8 is flipped by driving the rotary mechanism 6. The upside-down placement facilitates the removal of the lower circuit breaker housing, making it more convenient to use, greatly facilitating the maintenance work, reducing the burden on maintenance personnel, and speeding up the maintenance work. The present invention can be applied to circuit breakers of different heights and specifications, has strong versatility, is easy to use, ensures safety and improves work efficiency, and can also realize circuit breaker overhaul and on-site testing of the circuit breaker operating status, thereby improving the work efficiency of operators and reducing their labor intensity. The present invention has the advantages of reasonable structure, flexible movement, adjustable height, self-flip maintenance, time-saving, labor-saving, and high efficiency. Example

[0037] like Figure 1-8 As shown, a mobile maintenance platform for circuit breaker includes a mobile base 1 and a lifting and flipping workbench 3. Universal rotating drive wheels 2 are provided on both sides of the lower side of the mobile base 1 for driving the mobile base 1 to move as a whole; a group of lifting and flipping workbench 3 are symmetrically provided above the mobile base 1, and the lifting and flipping workbench 3 includes a frame 4 installed on the mobile base 1, a lifting mechanism 5 located on the top of the frame 4 and a driving and rotating mechanism 6. The side of the driving and rotating mechanism 6 is longitudinally slidably connected to the frame 4 and the top is connected to the lifting mechanism 5, and a support frame 7 is installed on the outer side of the driving and rotating mechanism 6. The support frame 7 is used to support and fix the circuit breaker body 8; the overall height adjustment function of the driving and rotating mechanism 6, the support frame 7 and the circuit breaker body 8 is realized by the lifting mechanism 5; the overall flipping function of the support frame 7 and the circuit breaker body 8 is realized by the driving and rotating mechanism 6.

[0038] The universal rotating drive wheel 2 includes a bracket 21 connected to the bottom surface of the mobile base 1, a travel drive assembly 22 is provided in the middle of the bracket 21, a rotation drive assembly 23 is provided behind the travel drive assembly 22, and a travel wheel assembly 24 is provided below the bracket 21. The travel wheel assembly 24 is embedded in an opening 25 opened inside the bracket 21 through a bearing ring 26.

[0039] A large gear 27 is provided above the bearing ring 26, and a small gear 28 is meshed and connected to the rear of the large gear 27. The small gear 28 is power-connected to the rotation drive assembly 23. A side opening frame 29 is provided above the large gear 27, and a central gear 201 is provided inside the side opening frame 29. The central gear 201 is power-connected to the travel drive assembly 22, and a transmission gear 202 is meshed and connected to the front of the central gear 201. A small bevel gear 203 is connected to the shaft below the transmission gear 202; a wheel frame 204 is installed on the bottom surface of the bearing ring 26, and a walking wheel body 205 is installed inside the wheel frame 204. A large bevel gear 207 is installed on the side of the walking wheel body 205. The small bevel gear 203 is located below the bearing ring 26 and the lower end of the shaft of the small bevel gear 203 is connected to the wheel frame 204 through a bearing ring 206. The small bevel gear 203 and the large bevel gear 207 are meshed and connected to each other.

[0040] In this embodiment, the working principle of the universal rotary drive wheel is as follows: ① Traveling: The travel drive assembly is started, and the travel drive assembly drives the central gear located inside the side opening frame to rotate through the output shaft. Since the central gear and the transmission gear are meshed with each other, the central gear drives the small bevel gear to rotate through the transmission gear. Since the small bevel gear and the large bevel gear are meshed with each other, the small bevel gear drives the walking wheel body to rotate through the large bevel gear, thereby realizing the traveling function; in actual use, the structure in which the small bevel gear and the large bevel gear cooperate can be replaced with other structures that can realize the corresponding functions, such as a right-angle magnetic coupling and a worm gear transmission assembly; ② Steering or universal rotation: The rotation drive assembly is started, and the rotation drive assembly drives the small gear to rotate through the output shaft. Since the small gear and the large gear are meshed, the small gear drives the large gear to rotate. The wheel frame is embedded in the bearing ring and the top of the wheel frame is connected to the large gear. The bearing ring is embedded in the opening opened in the mounting bracket. Therefore, when the pinion drives the large gear to rotate, the large gear drives the wheel frame and the walking wheel body installed inside the wheel frame to rotate, thereby completing the steering requirement or universal rotation requirement, greatly improving practicality.

[0041] The present invention is a mobile maintenance platform for circuit breakers, especially a mobile maintenance platform for ZW-32 type circuit breakers. It is difficult to replace accessories at the lower part of the 10kV ZW-32 type circuit breaker during maintenance. During use, the device of the present invention is first moved to a suitable position by the universal rotating drive wheel 2 located at the bottom of the mobile base 1. It is easy to move and can be moved to a suitable place after use without occupying maintenance space. The support frame 7 of the lifting and flipping workbench 3 is used to place and support the circuit breaker body 8, and the circuit breaker body 8 is effectively and reliably fixed by the clamping and fastening assembly 73 to improve stability. Then, it is adjusted to a suitable height under the action of the lifting mechanism 5. In order to facilitate During the maintenance of the circuit breaker body 8, the circuit breaker body 8 is flipped by driving the rotary mechanism 6. The upside-down placement facilitates the removal of the lower circuit breaker housing, making it more convenient to use, greatly facilitating the maintenance work, reducing the burden on maintenance personnel, and speeding up the maintenance work. The present invention can be applied to circuit breakers of different heights and specifications, has strong versatility, is easy to use, ensures safety and improves work efficiency, and can also realize circuit breaker overhaul and on-site testing of the circuit breaker operating status, thereby improving the work efficiency of operators and reducing their labor intensity. The present invention has the advantages of reasonable structure, flexible movement, adjustable height, self-flip maintenance, time-saving, labor-saving, and high efficiency.

Claims

1. The mobile maintenance platform for circuit breakers includes a mobile base and a lifting and turning workbench, and is characterized by: Universal rotating drive wheels are provided on both sides of the lower side of the mobile base for driving the mobile base to move as a whole; a group of lifting and flipping work platforms are symmetrically provided above the mobile base, and the lifting and flipping work platforms include a frame installed on the mobile base, a lifting mechanism located on the top of the frame, and a driving rotary mechanism; the side of the driving rotary mechanism is longitudinally slidably connected to the frame, and the top is connected to the lifting mechanism, and a support frame is installed on the outer side of the driving rotary mechanism, and the support frame is used to support and fix the circuit breaker body; the overall height adjustment function of the driving rotary mechanism, the support frame and the circuit breaker body is realized by the lifting mechanism; the overall flipping function of the support frame and the circuit breaker body is realized by the driving rotary mechanism.

2. The mobile circuit breaker maintenance platform according to claim 1, characterized in that: The frame includes a group of columns, the bottoms of the columns are fixedly connected to the mobile base through the base, the sides of the columns are longitudinally installed with linear rail mounting plates, and the linear rail mounting plates are provided with guide rails; the tops of the columns are horizontally provided with beams for installing lifting mechanisms.

3. The mobile circuit breaker maintenance platform according to claim 2, characterized in that: The lifting mechanism includes a lifting reducer installed on the crossbeam, and main shafts are installed at the output ends on both sides of the lifting reducer. A driving double sprocket is provided on the outside of the main shaft, and the outer ends of the main shaft are connected to the bearing seat shaft. A driven double sprocket is provided behind the driving double sprocket, and the driven double sprocket is installed on the crossbeam through a support seat.

4. The mobile circuit breaker maintenance platform according to claim 3, characterized in that: The driving double sprocket and the driven double sprocket realize power transmission through a double-row chain. One end of the double-row chain is fixedly connected to a counterweight through a connector, and the other end is fixedly connected to a driving rotary mechanism through a connector.

5. The mobile circuit breaker maintenance platform according to claim 4, characterized in that: The driving rotary mechanism includes a driving end sliding plate fixedly connected to the connecting head at the end of the double-row chain, the inner side of the driving end sliding plate is slidingly connected to the corresponding guide rail through a sliding seat, a rotary gear reducer is provided on the outer side of the driving end sliding plate, an inner gear ring rotary support connected to the rotary gear reducer by power is provided on the inner side of the driving end sliding plate, and the inner gear ring rotary support is connected to the support frame.

6. The mobile circuit breaker maintenance platform according to claim 5, characterized in that: The support frame includes a support plate connected to the inner gear ring slewing bearing, and support beams for supporting the circuit breaker body are provided on both sides above the support plate. A clamping and fastening assembly for fixing the circuit breaker body is provided on the inner side of the support plate relative to a group of support beams.

7. The mobile circuit breaker maintenance platform according to claim 6, characterized in that: The clamping and fastening assembly includes a mounting column fixedly connected to the support plate, the mounting column is movably connected to the base plate through a ball joint, elastic clamping plates are provided on both sides of the base plate, clamping rubber blocks are provided on the inner sides of the elastic clamping plates, and an opening is opened in the middle of the elastic clamping plate.

8. The mobile circuit breaker maintenance platform according to claim 7, characterized in that: A fixed plate and a movable plate are respectively provided on the front and rear sides of the bottom plate surface, and the fixed plate is connected to the movable plate by a hand-tightened screw running through the inside of the fixed plate. A group of first connecting rods and second connecting rods arranged in an "eight" shape are movably installed on the upper surfaces of the movable plate and the fixed plate, and hinges are provided at the corresponding outer connections of the first connecting rod and the second connecting rod. Fastening plates are provided on the outer sides of the elastic clamping plates, and the upper ends of the fastening plates are connected to the hinges through light rods, the middle parts are connected to the elastic clamping plates through movable shaft seats, and the tail ends are at the opening and fastening claws are provided at the tail ends.

9. The mobile circuit breaker maintenance platform according to claim 1, characterized in that: The universal rotating drive wheel includes a bracket connected to the bottom surface of the mobile base, a travel drive assembly is provided in the middle of the bracket, a rotation drive assembly is provided behind the travel drive assembly, and a travel wheel assembly is provided below the bracket. The travel wheel assembly is embedded in an opening opened inside the bracket through a bearing ring.

10. The mobile circuit breaker maintenance platform according to claim 9, characterized in that: A large gear is provided above the bearing ring, and a small gear is meshed with the back of the large gear. The small gear is dynamically connected to the rotation drive assembly. A side opening frame is provided above the large gear, and a center gear is provided inside the side opening frame. The center gear is dynamically connected to the travel drive assembly, and a transmission gear is meshed with the front of the center gear. A small bevel gear is connected to the shaft below the transmission gear. A wheel frame is installed on the bottom surface of the bearing ring, and a travel wheel body is installed inside the wheel frame. A large bevel gear is installed on the side of the travel wheel body. The small bevel gear is located below the bearing ring and the lower end of the shaft of the small bevel gear is connected to the wheel frame through a bearing ring. The small bevel gear and the large bevel gear are meshed with each other.

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