Substation equipment operation and maintenance device and method

Abstract

The invention discloses a substation equipment operation and maintenance overhauling device and method.The overhauling device comprises a bearing part, a clamping and positioning mechanism and a cleaning mechanism, the clamping and positioning mechanism comprises a bidirectional telescopic assembly, a connecting base and a clamping piece, the bidirectional telescopic assembly is connected to the bearing part, and the bidirectional telescopic assembly is provided with two horizontal telescopic moving ends; the pair of connecting seats is fixed with the two horizontal telescopic moving ends; a pair of clamping pieces are provided and are respectively and correspondingly fixed with the pair of connecting seats; the two sets of cleaning mechanisms are correspondingly connected to the bottoms of the two connecting bases correspondingly and are symmetrically arranged, and each cleaning mechanism comprises a walking track, a moving assembly and a sweeping assembly; through the design of the two-way synchronous clamping and positioning mechanism and the split type openable coaxial annular rail, simultaneous clamping and positioning and efficient collaborative cleaning of two insulator supporting columns of the double-column type disconnecting switch can be achieved, the limitation that existing equipment can only work in a single column mode and is blocked by a structure is overcome, and the working efficiency is improved. And the operation and maintenance time and the equipment power failure time are reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of power grid equipment maintenance, and particularly relates to a substation equipment operation and maintenance device and method. BACKGROUND

[0002] The isolating switch is also called a knife switch, is an important electrical equipment indispensable in a substation, and its core functions include isolating a power supply, performing switching operation and turning on and off a small current circuit. Since the isolating switch does not have arc extinguishing capability, the structural reliability and insulation performance thereof directly affect the safe operation of a power grid. According to the difference in the insulation support structure, the isolating switch is mainly divided into a single-column type, a double-column type and a three-column type. The double-column type isolating switch has a structure as shown in the drawing, generally has a static contact W, a moving contact E, two insulator support columns R and a switch opening and closing transmission mechanism T. One of the insulator support columns is in a fixed state and is provided with the static contact, and the other insulator support column is in a rotatable state and is provided with the moving contact. The insulator support column provided with the moving contact is driven to rotate under the driving of the switch opening and closing transmission mechanism, so as to realize the opening and closing operation of the static contact and the moving contact. Figure 1

[0003] In a long-term operation process, the insulator support column of the isolating switch is easily affected by outdoor dust, salt mist, chemical pollutants, bird droppings and humid climate and the like, and gradually accumulates pollution on the surface. The pollution forms a conductive layer under humid conditions, significantly reduces the external insulation strength of the insulator, increases the flashover risk, and in severe cases, may cause a power grid grounding or phase-to-phase short circuit accident, threatening the safe and stable operation of the substation and even the regional power grid. Therefore, it is necessary to regularly maintain and repair and clean the insulator of the isolating switch.

[0004] The insulator support column R is mainly composed of an insulator head R1, an insulator column R2 and an insulator seat R3. The insulator column R2 is provided with a multilayer umbrella skirt structure R21. When cleaning, the upper and lower surfaces of the multilayer umbrella skirt structure R21 are mainly cleaned. The traditional cleaning method mainly relies on maintenance personnel to climb the equipment or use an aerial work vehicle to approach the insulator, and then wipe it manually. Since the number of double-column type isolating switches in the substation is large, and they are usually arranged in rows, the manual wiping and cleaning has high labor intensity. Moreover, the personnel need to be near the high-voltage live environment or in a high-altitude working state for a long time, and the personal safety risk is high, which is difficult to adapt to the large-scale and high-frequency maintenance requirements.

[0005] ​To solve the above problems, some automatic cleaning devices have appeared in the market to replace manual cleaning, such as mobile cleaning devices equipped with mechanical arms or rotating brushes. However, these automatic cleaning and maintenance devices are mainly used for cleaning a single insulator post or insulator string. When applied to double-column disconnectors, there are some defects: first, the device structure often cannot simultaneously adapt to and clean two parallel insulator posts, resulting in a multiplication of the number of operations and a prolongation of the maintenance period; second, the top contact system and the bottom complex transmission mechanism of the double-column disconnector form a spatial obstacle, forcing many cleaning devices to take a lateral detour, resulting in their being able to perform operations on only one side of the insulator post at a time. After cleaning one side, the device needs to be moved out, repositioned, and adjusted to the other side, and the tedious positioning and debugging process needs to be performed again. This repetitive movement, positioning, and adjustment operation not only significantly increases the operation time of a single maintenance, but also causes the overall maintenance period to be artificially lengthened. The lengthening of the maintenance period directly means that the necessary power-off time of the equipment is increased. For a continuous power grid, the long-term shutdown of key disconnectors will reduce power supply reliability, affect the stable operation and load supply of the regional power grid, prolong the risk window period of the power grid operating in a non-full wiring mode, and increase the safety hazards of system operation. SUMMARY

[0006] The purpose of the present application is to provide a substation equipment operation and maintenance device and method to solve the problem that existing automatic cleaning devices are difficult to match the structure of double-column disconnectors and are difficult to clean two insulator posts at the same time to shorten the maintenance period.

[0007] The technical solution of the present application is: The utility model provides a kind of substation equipment operation and maintenance device, including bearing part, still including clamping positioning mechanism and cleaning mechanism, clamping positioning mechanism includes two-way telescopic component, connecting seat and clamping piece, two-way telescopic component is connected on the bearing part, the two-way telescopic component has two horizontal telescopic movement ends;Connecting seat has a pair, with two horizontal telescopic movement ends fixed;Clamping piece has a pair, respectively correspond with a pair of connecting seat fixed, the clamping piece is used to when two horizontal telescopic movement ends elongation follow connecting seat and move and the inner wall of the head of two insulators in two insulator supports is positioned simultaneously clamped;Cleaning mechanism has two groups, respectively correspond with the bottom of two connecting seat, and symmetrically arranged, the cleaning mechanism includes walking track, moving assembly and cleaning assembly, walking track includes fixed type arc track, movable arc track and rotating part, the fixed type arc track is fixed in the bottom of the connecting seat, the movable arc track one side arc end and the fixed type arc track one side arc end between are connected by the rotating part, when cleaning, the movable arc track is driven with fixed type arc track butt joint closure and forms complete annular track under the rotating part, and annular track is coaxially arranged with insulator support under the positioning of the clamping positioning mechanism;Moving assembly is connected on the walking track, for moving on the walking track;Cleaning assembly is connected with the moving assembly, and is driven around insulator support and is cleaned to multilayer umbrella skirt under the moving assembly.

[0008] Preferably, as a further improvement of the present application, the two-way telescopic component includes a double-shaft motor and two lead screws, the double-shaft motor is fixed on the bearing part, the two lead screws are opposite in rotation direction and are respectively arranged on two sides of the double-shaft motor, one end of each of the two lead screws is connected with two output shafts of the double-shaft motor, and the other end of each of the two lead screws is rotatably connected with a support seat fixed on the bearing part, the connecting seat is a nut seat sleeved on the lead screw.

[0009] Preferably, as a further improvement of the present application, the fixed type arc track includes a first arc base and a first arc guide rail, the top of the first arc base is fixed with the bottom of the connecting seat, mounting slots are formed on two arc end faces of the first arc base, the first arc guide rail is fixed on the arc inner wall of the first arc base and located above the mounting slots, the movable arc track includes a second arc base and a second arc guide rail, two ends of the second arc base extend into the two mounting slots, and the second arc guide rail is fixed on the arc inner wall of the second arc base.

[0010] Preferably, as a further improvement of the present application, the rotating part comprises a first motor and a first shaft, one of the arc-shaped end faces of the first arc-shaped base is provided with a pair of hinged seats located on the upper and lower sides of the mounting slot, the first motor is fixed on the hinged seat on the upper side, one end of the first shaft is connected with the output shaft of the first motor, and the other end of the first shaft is fixed with the second arc-shaped base after penetrating through the hinged seat.

[0011] Preferably, as a further improvement of the present application, the second arc-shaped base is fixed with an iron block at the end away from the rotating part, and the mounting slot provided in the other arc-shaped end face of the first arc-shaped base is fixed with a magnet.

[0012] Preferably, as a further improvement of the present application, the moving assembly comprises a sliding limiting part, a second motor and a gear; the sliding limiting part comprises two arc-shaped frame plates, a pull plate and a fan-shaped support plate; the two arc-shaped frame plates are coaxially fixed on the top of the first arc-shaped base and the top of the second arc-shaped base respectively, and an arc-shaped guide slot is provided on the outer arc wall of each arc-shaped frame plate; the pull plate has an L-shaped cross section, the vertical end of the pull plate is slidably connected with the outer arc wall of the arc-shaped frame plate, and the horizontal end of the pull plate is slidably connected with the arc-shaped guide slot; the fan-shaped support plate is coaxially arranged above the arc-shaped frame plate, one side of the fan-shaped support plate is fixed with the vertical end of the pull plate; the second motor is fixed on the bottom of the fan-shaped support plate and located on the inner side of the arc-shaped frame plate; the gear is connected with the output shaft of the second motor, and the first arc-shaped guide rail and the second arc-shaped guide rail are both arc-shaped racks and are engaged with the gear.

[0013] Preferably, as a further improvement of the present application, the groove surface of the arc-shaped guide slot is uniformly provided with a plurality of balls, and the horizontal end surface of the pull plate is provided with an abutting slot opening in contact with the balls.

[0014] Preferably, as a further improvement of the present application, the cleaning assembly comprises a second shaft, a plurality of driving boxes and a plurality of cleaning brush rollers; the second shaft is vertically arranged, the upper end of the second shaft is connected with the output shaft of the second motor; the plurality of driving boxes are uniformly arranged along the longitudinal direction of the second shaft, the driving boxes are fixed through connecting rods, the uppermost driving box is fixed with the bottom of the fan-shaped support plate, and the lower end of the second shaft is rotatably connected with the inner bottom surface of the lowermost driving box after penetrating through the plurality of driving boxes; the plurality of cleaning brush rollers are arranged one by one at the plurality of driving boxes, and the roller shaft of each cleaning brush roller extends into the driving box and is connected with the second shaft through a bevel gear transmission member.

[0015] The present application also discloses a method for operation and maintenance of substation equipment, which is realized by using the above-mentioned maintenance device and comprises the following steps. Adjust the walking track in the two groups of cleaning mechanisms, and make the movable arc-shaped track rotate and separate relative to the fixed arc-shaped track by the rotating part to form an open space for the insulator support to pass through; Move the bearing part to between the two insulator supports of the double-column disconnecting switch to be overhauled; Drive the two clamping pieces to synchronously extend in two directions through the bidirectional telescopic assembly, clamp and position the opposite side walls of the insulator heads in the two insulator supports at the same time through the two clamping pieces, position the walking tracks in the two groups of cleaning mechanisms, and keep coaxial arrangement with the insulator supports; Make the movable arc-shaped track rotate and close relative to the fixed arc-shaped track again to form a complete annular track; Control the moving assembly in the two groups of cleaning mechanisms to carry the cleaning assembly to move on the arc-shaped track, and simultaneously clean the multiple layers of umbrella skirts on the two insulator supports.

[0016] Compared with the prior art, the beneficial effects of the present application are: Through the innovative bidirectional synchronous clamping and positioning mechanism and the split type openable coaxial annular track design, the two insulator supports of the double-column disconnecting switch can be clamped and positioned at the same time and efficiently cleaned in cooperation, and the limitation that the existing equipment can only operate on a single column and is blocked by the structure is overcome. The method greatly reduces the time required for operation and maintenance, thereby reducing the equipment downtime, avoiding the influence on the stable operation and load supply of the regional power grid, and reducing the safety hidden danger of system operation. DETAILED DESCRIPTION

[0017] Figure 1 It is a schematic diagram of the existing structure.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the substation equipment operation and maintenance device before use.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the substation equipment operation and maintenance device before use. Figure 2

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the substation equipment operation and maintenance device before use. Figure 2

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the substation equipment operation and maintenance device before use.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the substation equipment operation and maintenance device before use. Figure 5

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the substation equipment operation and maintenance device before use. Figure 6 ​​​A schematic diagram of the cross-sectional structure at point AA.

[0024] Figure 8 For the present invention Figure 7 Enlarged diagram at point B in the diagram Detailed Implementation

[0025] The following is combined Figures 2-8 The specific embodiments of the present invention will be described in detail below. In the description of the invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0026] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the invention, unless otherwise stated, "a plurality of" means two or more.

[0027] Example 1 like Figures 2-8 As shown, this embodiment of the invention provides a substation equipment operation and maintenance device, including a bearing part 1, a clamping and positioning mechanism, and a cleaning mechanism.

[0028] Among them, the bearing part 1 serves as the basic support platform for the entire device and can be integrated into the lifting platform of the mobile trolley or the end of the robotic arm to flexibly move and position it near the disconnecting switch to be repaired. The bearing part 1 is a horizontal bearing beam, and its length is less than the distance between the two insulator supports.

[0029] The core function of the clamping positioning mechanism is to realize the rapid and accurate positioning and fixing of the maintenance device and the two insulator supports. The clamping positioning mechanism comprises a bidirectional telescopic assembly 21, a pair of connecting seats 22 and a pair of clamping pieces 23. The bidirectional telescopic assembly 21 is fixedly installed on the bearing part 1 and has two telescopic moving ends that can move synchronously towards or away from each other horizontally. The two telescopic moving ends are connected with the clamping pieces 23 through the connecting seats 22. The clamping pieces 23 are designed as clamping jaws, clamping discs or clamping blocks with elastic or adjustable structures and are adapted to the shape of the inner wall of the insulator head. The clamping pieces 23 are used to stably clamp the inner wall of the insulator head after being inserted into the inner wall. When the clamping positioning is performed, the bidirectional telescopic assembly 21 is placed between the two insulator supports, the two telescopic moving ends of the bidirectional telescopic assembly 21 are controlled to synchronously extend, and then the pair of connecting seats 22 drive the pair of clamping pieces 23 to move away from each other. The pair of clamping pieces 23 clamp the opposite side walls of the insulator heads of the two insulator supports at the same time.

[0030] The cleaning mechanism has two groups, which are respectively connected at the bottom of the two connecting seats 22 and are symmetrically arranged. Each group of cleaning mechanisms is responsible for cleaning one insulator support and comprises a walking track, a moving assembly and a cleaning assembly.

[0031] The walking track is designed in a split type and mainly comprises a fixed arc-shaped track 31, a movable arc-shaped track 32 and a rotating part 33. The fixed arc-shaped track 31 is fixed at the bottom of the connecting seat 22. The arc-shaped end of the movable arc-shaped track 32 is connected with the arc-shaped end of the fixed arc-shaped track 31 through the rotating part 33. When cleaning, the movable arc-shaped track 32 is driven by the rotating part 33 to abut against and close the fixed arc-shaped track 31 to form a complete annular track. The annular track is coaxially arranged with the insulator support under the positioning of the clamping positioning mechanism, so that the moving assembly can move around the circumference of the insulator support.

[0032] In specific implementation, the fixed arc-shaped track 31 comprises a first arc-shaped base 311 and a first arc-shaped guide rail 312. The top of the first arc-shaped base 311 is fixed with the bottom of the connecting seat 22. The two arc-shaped end faces of the first arc-shaped base 311 are both provided with mounting grooves 313. The first arc-shaped guide rail 312 is fixed on the arc-shaped inner wall of the first arc-shaped base 311 and is located above the mounting grooves 313. The movable arc-shaped track 32 comprises a second arc-shaped base 321 and a second arc-shaped guide rail 322. The two ends of the second arc-shaped base 321 extend into the two mounting grooves 313. The second arc-shaped guide rail 322 is fixed on the arc-shaped inner wall of the second arc-shaped base 321.

[0033] In a specific implementation, the rotating part 33 includes a first motor and a first shaft. A pair of hinge seats are connected to one of the arc-shaped end faces of the first arc-shaped base 311 and are located on the upper and lower sides of the mounting slot 313. The first motor is fixed on the hinge seat located on the upper side. One end of the first shaft is connected to the output shaft of the first motor, and the other end of the first shaft passes through the hinge seat and is fixed to the second arc-shaped base 321.

[0034] The first motor drives the first shaft to rotate the second arc-shaped base 321. The second arc-shaped guide rail 322 is fixed on the arc-shaped inner wall of the second arc-shaped base 321. Before cleaning, the movable arc-shaped guide rail 32 can rotate around the hinge point and separate from the fixed arc-shaped guide rail 31 to form an opening, which facilitates the entry of the insulator support. During cleaning, the movable arc-shaped guide rail 32 rotates until its free end is embedded in the mounting slot 313 at the other end of the first arc-shaped base 311. At this time, the first arc-shaped guide rail 312 and the second arc-shaped guide rail 322 are connected to form a complete ring guide rail.

[0035] As an optimization and improvement of the above solution, in order to ensure that the first arc-shaped base 311 and the second arc-shaped base 321 are closed and stable, in this embodiment, an iron block 41 is fixed at one end of the second arc-shaped base 321 away from the rotating part 33, and a magnet 42 is fixed in the mounting slot 313 opened on the other arc-shaped end face of the first arc-shaped base 311, so as to achieve locking by magnetic attraction.

[0036] The moving component is connected to the travel track for movement on the track. In a specific implementation, the moving component includes a sliding limit part, a second motor 54, and a gear 55. The sliding limit part includes two arc-shaped frame plates 51, a pull plate 52, and a fan-shaped support plate 53. The two arc-shaped frame plates 51 are coaxially fixed to the top of the first arc-shaped base 311 and the top of the second arc-shaped base 321, respectively. Each arc-shaped frame plate 51 has an arc-shaped guide groove 511 on its outer arc wall. The pull plate 52 has an L-shaped cross-section, with its vertical end slidably connected to the outer arc wall of the arc-shaped frame plate 51 and its horizontal end slidably connected to the arc-shaped guide groove 511. The fan-shaped support plate 53 is coaxially arranged above the arc-shaped frame plate 51, and one side of the fan-shaped support plate 53 is fixed to the vertical end of the pull plate 52. The second motor 54 is fixed to the fan-shaped support plate 53. The bottom of the fan-shaped support plate 53 is located inside the arc-shaped frame plate 51; the gear 55 is connected to the output shaft of the second motor 54. The first arc-shaped guide rail 312 and the second arc-shaped guide rail 322 are both arc-shaped racks and mesh with the gear 55. When the second motor 54 drives the gear 55 to rotate, the entire moving assembly will move along the circular track under the meshing transmission of the gear and rack. The sliding limit part ensures the smoothness of the movement and the accuracy of the trajectory. The two arc-shaped frame plates 51 provide straddling support when forming a complete circular track. Therefore, the arc length of the fan-shaped support plate 53 needs to be greater than the gap between the two arc-shaped frame plates 51 to ensure that the fan-shaped support plate 53 can smoothly cross the gap between the two arc-shaped frame plates 51 when supporting and following the second motor 54 to move around the arc-shaped frame plate 51.

[0037] As an optimization and improvement of the above solution, in order to reduce friction, multiple balls 6 are evenly distributed on the surface of the arc-shaped guide groove 511, and the horizontal end face of the pull plate 52 is provided with an abutment groove 521 that contacts the balls 6.

[0038] The cleaning assembly, used to perform actual cleaning operations, is connected to the moving assembly and moves around the insulator support under the drive of the moving assembly to clean the multi-layered umbrella skirts. In specific implementation, the cleaning assembly includes a second shaft 71, multiple drive boxes 72, and multiple cleaning brush rollers 74. The second shaft 71 is vertically arranged, and its upper end is connected to the output shaft of the second motor 54. The multiple drive boxes 72 are evenly distributed along the longitudinal direction of the second shaft 71, and each drive box 72 is fixed to the other by a connecting rod 73. The uppermost drive box 72 is fixed to the bottom of the fan-shaped support plate 53. The lower end of the second shaft 71 passes through the multiple drive boxes 72 and is rotatably connected to the inner bottom surface of the lowermost drive box 72. The multiple cleaning brush rollers 74 are correspondingly arranged at the multiple drive boxes 72, and the roller shaft of each cleaning brush roller 74 extends into the drive box 72 and is connected to the second shaft 71 through a bevel gear transmission component 75. Multiple cleaning brush rollers 74 are powered by the same second motor 54 for both orbital motion (revolution) and self-rotation. Since multiple drive boxes 72 are connected into an integral frame by connecting rods 73, and the uppermost drive box 72 is fixed to the bottom of the fan-shaped support plate 53, when the second motor 54 drives the gear 55 to rotate and moves around the insulator support through the support of the fan-shaped support plate 53, it will synchronously drive the multiple drive boxes 72 and multiple cleaning brush rollers 74 to move together with the fan-shaped support plate 53. Each drive box 72 is equipped with a set of bevel gear transmission components 75, so that during the rotation of the second shaft 71, the rotation is converted to horizontal rotation through the bevel gear transmission components 75 at various locations, thereby driving the corresponding cleaning brush rollers 74 to rotate at high speed around their own axes. The multiple cleaning brush rollers 74 correspond one-to-one with the gaps of the multiple layers of umbrella skirts of the insulator support in the height direction, and can thoroughly clean the upper and lower surfaces of the umbrella skirts by rotating while orbiting the support.

[0039] Specifically, as an optional embodiment of the bidirectional telescopic component 21, this embodiment includes a dual-axis motor 211 and two lead screws 212. The dual-axis motor 211 is fixed on the bearing part 1. The two lead screws 212 have opposite rotation directions and are respectively arranged on both sides of the dual-axis motor 211. One end of each lead screw 212 is connected to the two output shafts of the dual-axis motor 211, and the other end of each lead screw 212 is rotatably connected to the support seat fixed on the bearing part 1. The connecting seat 22 is a nut seat, which is sleeved on the lead screw 212.

[0040] When the bidirectional telescopic assembly 21 drives a pair of clamping members 23 for clamping and positioning, the dual-axis motor 211 drives the two lead screws 212 to rotate synchronously. Since the two lead screws 212 rotate in opposite directions and the connecting seat 22 is a nut seat connected to the lead screws 212, the two lead screws 212 will convert rotational motion into linear motion during rotation, and drive the two connecting seats 22 to move away from each other synchronously or move closer to each other synchronously. When the two connecting seats 22 move away from each other synchronously, they can drive the pair of clamping members 23 to clamp. When the two connecting seats 22 move closer to each other synchronously, they can drive the pair of clamping members 23 to release clamping.

[0041] As an optimization and improvement of the above solution, in order to achieve a faster automatic centering function, a dovetail groove 11 can be provided in the length direction of the bearing part 1. A dovetail slide block 8 is slidably connected in the dovetail groove 11, fixing the housing of the dual-axis motor 211 to the center of the dovetail slide block 8. In this way, when the two connecting seats 22 move away from each other synchronously, they can drive a pair of clamping members 23 to clamp, and the position of the bearing part 1 does not need to be adjusted to be located in the center area between the two insulator supports. Even in the offset area, the dovetail slide block 8 can be freely adjusted to automatically position the dual-axis motor 211 in the center area between the two insulator supports.

[0042] Example 2 Based on Example 1, this embodiment discloses a method for operation and maintenance of substation equipment, which is implemented using the aforementioned maintenance device and includes the following steps: S1. Adjust the travel tracks in the two sets of cleaning mechanisms, and use the rotating part 33 to make the movable arc track 32 rotate and separate from the fixed arc track 31, forming an opening space for the insulator support to pass through.

[0043] S2. Move the bearing unit 1 between the two insulator supports of the double-column disconnector switch to be inspected.

[0044] The specific operation is as follows: The operator transports the device carrier 1 to the vicinity of the double-column disconnector switch to be inspected. The overall position of the device is adjusted so that the opening spaces of the two sets of cleaning mechanisms are located inside the two insulator supports.

[0045] S3. The two clamping parts 23 are driven to extend synchronously in both directions by the bidirectional telescopic component 21. The two clamping parts 23 are used to clamp and position the opposite side walls of the insulator heads in the two insulator posts at the same time, so as to realize the positioning of the traveling track in the two sets of cleaning mechanisms and keep it coaxial with the insulator posts.

[0046] The specific operation is as follows: Start the dual-axis motor 211. The motor drives two lead screws 212 with opposite directions to rotate synchronously, causing the two nut seats (connecting seats 22) to move towards each other. This drives the two clamping parts 23 to extend horizontally into the inner walls of the two insulator heads and achieve locking. This process completes the centering and fixing of the two insulator supports in one go, and ensures that the closed circular track formed by the two sets of cleaning mechanisms is coaxial with their respective insulator supports.

[0047] S4. The movable arc track 32 is rotated relative to the fixed arc track 31 to form a complete circular track by using the rotating part 33 again.

[0048] The specific operation is as follows: control the rotating part 33 on the two cleaning mechanisms to drive the movable arc track 32 to rotate until its free end is embedded in the mounting slot 313 at the other end of the fixed arc track 31, and is locked by the attraction force between the magnet 42 and the iron block 41. At this time, the two complete, coaxially fitted annular tracks outside the insulator support are ready.

[0049] S5. Control the moving components in the two sets of cleaning mechanisms to move the sweeping components on the arc track, and at the same time clean the multi-layer umbrella skirts on the two insulator supports.

[0050] The specific operation is as follows: The second motors 54 on both sets of cleaning mechanisms are started simultaneously. On one hand, the motor output shaft drives the gears 55 to move along the ring rack track, causing the multiple cleaning brush rollers 74 to revolve around the insulator support. On the other hand, the motor's power is transmitted to all cleaning brush rollers 74 through the second shaft 71 and various bevel gear transmission components 75, causing them to rotate at high speed. The combination of revolution and rotation allows the brush rollers to efficiently clean all surfaces of the umbrella skirt. Because the two cleaning mechanisms are independently controlled and operate synchronously, coordinated and efficient cleaning of the two insulator supports is achieved.

[0051] After cleaning the two insulator supports of a set of double-column disconnect switches, the second motor 54 is stopped. The rotating part 33 is reversed to open the movable arc track 32. Then, the bidirectional telescopic assembly 21 is reversed to disengage the clamping member 23 from the insulator head and retract it to its initial position. Finally, the device can be moved away from the current workstation to prepare for the maintenance of the next set of equipment.

[0052] The above-disclosed embodiments are merely preferred embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A substation equipment operation and maintenance device, comprising a support unit, characterized in that, Also includes: The clamping and positioning mechanism includes: a bidirectional telescopic assembly connected to the bearing portion, the bidirectional telescopic assembly having two horizontal telescopic movable ends; a pair of connecting seats fixed to the two horizontal telescopic movable ends; and a pair of clamping members respectively fixed to the pair of connecting seats. The clamping members are used to clamp and position the opposing sidewalls of the insulator heads in the two insulator supports simultaneously as the two horizontal telescopic movable ends extend and move with the connecting seats. The cleaning mechanism comprises two sets, each connected to the bottom of one of the two connecting seats and arranged symmetrically. The cleaning mechanism includes: The traveling track includes a fixed arc track, a movable arc track, and a rotating part. The fixed arc track is fixed to the bottom of the connecting seat. One side arc end of the movable arc track is connected to one side arc end of the fixed arc track through the rotating part. During cleaning, the movable arc track, driven by the rotating part, docks with the fixed arc track to form a complete circular track. The circular track is coaxially arranged with the insulator support under the positioning of the clamping and positioning mechanism. A movable component, connected to the travel track, for moving on the travel track; The cleaning component, connected to the moving component, moves around the insulator post under the drive of the moving component and cleans the multi-layered skirts.

2. The substation equipment operation and maintenance device according to claim 1, characterized in that, The bidirectional telescopic assembly includes a dual-axis motor and two lead screws. The dual-axis motor is fixed on the bearing part. The two lead screws have opposite rotation directions and are respectively arranged on both sides of the dual-axis motor. One end of each lead screw is connected to the two output shafts of the dual-axis motor, and the other end of each lead screw is rotatably connected to the support seat fixed on the bearing part. The connecting seat is a nut seat, which is sleeved on the lead screw.

3. The substation equipment operation and maintenance device according to claim 1, characterized in that, The fixed arc-shaped track includes a first arc-shaped base and a first arc-shaped guide rail. The top of the first arc-shaped base is fixed to the bottom of the connecting seat. Mounting slots are provided on both arc-shaped end faces of the first arc-shaped base. The first arc-shaped guide rail is fixed on the arc-shaped inner wall of the first arc-shaped base and is located above the mounting slots. The movable arc-shaped track includes a second arc-shaped base and a second arc-shaped guide rail. Both ends of the second arc-shaped base extend into the two mounting slots. The second arc-shaped guide rail is fixed on the arc-shaped inner wall of the second arc-shaped base.

4. The substation equipment operation and maintenance device according to claim 3, characterized in that, The rotating part includes a first motor and a first shaft. A pair of hinge seats are connected to one of the arc-shaped end faces of the first arc-shaped base and are located on the upper and lower sides of the mounting slot. The first motor is fixed on the hinge seat located on the upper side. One end of the first shaft is connected to the output shaft of the first motor, and the other end of the first shaft passes through the hinge seat and is fixed to the second arc-shaped base.

5. The substation equipment operation and maintenance device according to claim 4, characterized in that, An iron block is fixed to one end of the second arc-shaped base away from the rotating part, and a magnet is fixed in the mounting slot opened on the other arc-shaped end face of the first arc-shaped base.

6. The substation equipment operation and maintenance device according to claim 4, characterized in that, The moving component includes: The sliding limiting part includes: two arc-shaped frame plates, which are coaxially fixed to the top of the first arc-shaped base and the top of the second arc-shaped base, respectively, and each arc-shaped frame plate has an arc-shaped guide groove on its outer arc wall; a pull plate with an L-shaped cross-section, whose vertical end is slidably connected to the outer arc wall of the arc-shaped frame plate and whose horizontal end is slidably connected to the arc-shaped guide groove; and a fan-shaped support plate, which is coaxially arranged above the arc-shaped frame plate, and one side of the fan-shaped support plate is fixed to the vertical end of the pull plate. The second motor is fixed to the bottom of the sector-shaped support plate and located on the inner side of the arc-shaped frame plate; The gear is connected to the output shaft of the second motor. The first and second arc-shaped guide rails are both arc-shaped racks and mesh with the gear.

7. The substation equipment operation and maintenance device according to claim 6, characterized in that, The arc-shaped guide groove is evenly distributed with multiple balls, and the horizontal end face of the pull plate is provided with an abutment groove that contacts the balls.

8. The substation equipment operation and maintenance device according to claim 6, characterized in that, The cleaning component includes: The second shaft is vertically positioned, and its upper end is connected to the output shaft of the second motor. Multiple drive boxes are evenly distributed along the longitudinal direction of the second axis. Each drive box is fixed to the other by a connecting rod. The uppermost drive box is fixed to the bottom of the fan-shaped support plate. The lower end of the second axis passes through multiple drive boxes and is rotatably connected to the inner bottom surface of the lowermost drive box. Multiple sweeping brush rollers are arranged one-to-one with multiple drive boxes. The roller shaft of each sweeping brush roller extends into the drive box and is connected to the second shaft through a bevel gear transmission component.

9. A method for operation, maintenance, and repair of substation equipment, implemented using the maintenance device described in any one of claims 1 to 8, characterized in that, Includes the following steps: Adjust the travel tracks in the two sets of cleaning mechanisms, and use the rotating part to make the movable arc track rotate and separate from the fixed arc track, forming an opening space for the insulator support to pass through; Move the load-bearing part between the two insulator supports of the double-column disconnector switch to be inspected; The two-way telescopic components drive the two clamping parts to extend in both directions simultaneously. The two clamping parts simultaneously clamp and position the opposite side walls of the insulator heads in the two insulator posts, thereby positioning the travel tracks in the two sets of cleaning mechanisms and keeping them coaxial with the insulator posts. The rotating part is used again to make the movable arc track rotate relative to the fixed arc track to close and form a complete circular track; The two sets of cleaning mechanisms control the moving components to carry the sweeping components on the arc track, while simultaneously cleaning the multi-layered skirts on the two insulator supports.

Images