Cleaning equipment for electric lightning arrester

Abstract

The invention relates to the technical field of lightning arrester cleaning, and provides electric lightning arrester cleaning equipment which comprises a positioning unit, a cleaning unit and a driving unit. The positioning units are arranged on shaft bodies at the two ends of the lightning arrester body, and the cleaning units are connected with the positioning units; the positioning unit comprises an upper fixing frame and a lower fixing frame, the two ends of the cleaning unit are arranged on the lightning arrester body through the two fixing frames respectively, a supporting pipeline is arranged between the upper fixing frame and the lower fixing frame, the driving unit is arranged on the mounting plate, and the driving unit drives the positioning unit and the cleaning unit to rotate around a shaft body of the lightning arrester body. An umbrella skirt of the lightning arrester body is cleaned by the cleaning unit; the upper fixing frame and the lower fixing frame are installed on the lightning arrester body, the driving unit drives the positioning unit and the cleaning unit to rotate around the lightning arrester body at the same time, the cleaning unit cleans umbrella skirts in the lightning arrester body, manual cleaning is replaced, and the cleaning process can be achieved through the automatic driving unit.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lightning arrester cleaning, and particularly relates to a cleaning device for a power lightning arrester. BACKGROUND

[0002] The power lightning arrester is an important protection device in the power system, which is usually installed in outdoor high-voltage transmission lines, substations and other places, and is used to limit the voltage and protect the electrical equipment from lightning or operating overvoltage damage. The umbrella skirt of the lightning arrester is an important part, which is exposed to the outdoor environment for a long time, and is easy to accumulate dust, oil stains, bird droppings and other corrosive impurities.

[0003] The accumulation of these impurities will bring many problems: on the one hand, it will affect the heat dissipation performance of the lightning arrester, causing the temperature to rise during operation, reducing the insulation performance and service life of the lightning arrester; on the other hand, in humid weather, impurities may form a conductive path, causing the leakage current to increase, and even causing the lightning arrester to flash over, explode and other serious accidents, threatening the safe and stable operation of the power system.

[0004] At present, for the lightning arrester in the substation, the lightning arrester in the substation is vertically arranged, and the installation height of the lightning arrester is greater than two meters. The cleaning of the umbrella skirt of the lightning arrester is usually carried out by manual cleaning, which requires workers to work at height. Not only is the labor intensity large, the efficiency is low, but also there is a high safety risk.

[0005] In the patent with the application publication number CN110890189A, a lightning arrester is disclosed, which comprises a lightning arrester body, a rotating frame assembly and a wind speed cup assembly. The wind drives the wind speed cup to rotate, and the wind speed cup drives the sleeve ring to rotate at the top end of the lightning arrester body. The first side rod and the second side rod rotate around the body of the lightning arrester. The first side rod and the second side rod rotate around the lightning arrester, so that the cleaning strip contacts and cleans the umbrella skirt of the lightning arrester body. The lightning arrester is cleaned by the cleaning strip on the rotating frame driven by the wind. However, the driving rotating frame is fixed during the use of the lightning arrester, which inevitably affects the use of the lightning arrester: 1) the device is not fixed firmly (such as falling off in strong wind), which may hit the lightning arrester or adjacent equipment, causing the porcelain sleeve to break and the lead to loosen, and causing a power failure accident; 2) if the power supply of the cleaning device is too close to the high-voltage end of the lightning arrester, the device may be triggered by the induced voltage, or the voltage distribution of the lightning arrester may be affected by the leakage. SUMMARY

[0006] The purpose of the present application is to provide a cleaning device for a power lightning arrester, which drives the positioning unit and the cleaning unit to rotate around the shaft body of the lightning arrester body by the driving unit, so that the cleaning unit cleans the umbrella skirt in the lightning arrester body.

[0007] The application adopts the technical scheme of a cleaning device for a power lightning arrester, comprising a positioning unit, a cleaning unit and a driving unit; the positioning unit is arranged on the shaft body at both ends of the lightning arrester body, the cleaning unit is connected with the positioning unit and contacts the shed of the lightning arrester body; The positioning unit comprises an upper fixing frame and a lower fixing frame, both ends of the cleaning unit are detachably arranged on the shaft body at both ends of the lightning arrester body through the upper fixing frame and the lower fixing frame, a support pipeline is arranged between the upper fixing frame and the lower fixing frame, the driving unit is arranged on one side of the lower end of the lightning arrester body, and the driving unit drives the positioning unit and the cleaning unit to rotate around the shaft body of the lightning arrester body. The upper fixing frame comprises a connecting part and a circular tooth ring, the connecting part is a hollow semicircular arc-shaped shell with an accommodating space inside, an arc-shaped gap in a semicircular shape is arranged on the lower side wall of the connecting part, and the inner cavity of the lower part of the connecting part is communicated with the lower part of the stepped through hole through the arc-shaped gap; An arc-shaped support plate for supporting the lower end surface of the circular tooth ring is detachably arranged on the bottom surface of the connecting part, and a gear set for driving the circular tooth ring to rotate is arranged in the accommodating space. The lower fixing frame is the same as the upper fixing frame in structure and is additionally provided with a circular gear engaged with the driving unit for transmission, the circular gear is connected with the circular tooth ring, a transmission unit is arranged inside the support pipeline, before the driving unit drives the circular tooth ring to rotate to a set angle, the circular tooth rings in the upper and lower fixing frames are synchronously relatively rotated through the transmission unit and the gear set, and after the driving unit drives the circular tooth ring to rotate to the set angle, the driving unit drives the circular tooth ring to synchronously rotate with the connecting part.

[0008] Preferably, the gear set comprises two first support shafts vertically and symmetrically arranged in the accommodating space, and the upper and lower ends of the first support shaft are respectively rotatably arranged on the upper wall of the connecting part and the arc-shaped support plate. A guide gear is fixedly arranged on the first support shaft, the outer circumferential surface of the circular tooth ring has a plurality of teeth and is engaged with the guide gear, a first transmission wheel is coaxially and fixedly arranged on the first support shaft above the guide gear, and the two first transmission wheels are transmissionally connected through a first transmission belt.

[0009] Preferably, two guide wheels in contact with the first transmission belt are arranged between the two first transmission wheels, and the first transmission wheels are located outside the circular tooth ring.

[0010] Preferably, the support pipeline is arranged in a U shape and communicates with the accommodating space, the transmission unit comprises a belt assembly and a transmission part arranged inside the support pipeline, the circular tooth ring in the lower fixing frame is driven to move through the gear set and the belt assembly in the rotating process, and the transmission part drives the circular tooth ring in the upper fixing frame to synchronously rotate through the gear set and the belt assembly in the upper fixing frame.

[0011] Preferably, the belt assembly comprises a second support shaft, a second transmission wheel and a transmission gear, the second support shaft is vertically arranged in the support pipe, the second transmission wheel and the transmission gear are coaxially fixed on the second support shaft, the second transmission wheel is in transmission connection with the adjacent guide gear through a second transmission belt, and the second transmission belt is located above the first transmission belt.

[0012] Preferably, the transmission member comprises a connecting rod and two tooth plates respectively engaged with the two transmission gears, the two tooth plates are integrally formed with the connecting rod and arranged in a U shape.

[0013] Preferably, the circular-arc gear is coaxially fixed with the circular-arc gear ring through a connecting ring, the opening direction of the circular-arc gear ring is consistent with that of the circular-arc gear, the arc-shaped support plate is arranged between the circular-arc gear and the circular-arc gear ring and the connecting ring, and a tooth groove is formed in the circumferential direction of the connecting portion in the lower fixing frame.

[0014] Preferably, the driving unit comprises a driver detachably mounted on the support ring, the driver is vertically arranged, and a driving gear is arranged on the driver; in the initial state, the driving gear is engaged with the circular-arc gear and does not contact the connecting portion in the lower fixing frame.

[0015] Preferably, the circular-arc gear has an arc value greater than 180 degrees.

[0016] Preferably, the cleaning unit comprises a mounting frame, the mounting frame is horizontally arranged in a U shape, two ends of the mounting frame are respectively mounted on the connecting portions of the upper fixing frame and the lower fixing frame, a plurality of horizontal cross rods are arranged on the inner side of the mounting frame in the vertical direction, a cleaning plate is arranged below the cross rod, and the cleaning plate is arranged above the umbrella skirt in the arrester body after installation and in contact with the surface of the umbrella skirt.

[0017] The present application has the following advantages: By mounting the upper fixing frame and the lower fixing frame on the upper and lower ends of the shaft body of the arrester body, the cleaning unit is limited on the arrester body, the positioning unit and the cleaning unit are driven by the driving unit to rotate around the shaft body of the arrester body at the same time, the cleaning unit cleans the umbrella skirt in the arrester body, the umbrella skirt is fully cleaned, dust, impurities and the like on the surface are effectively removed, the cleaning is thorough, manual cleaning is replaced, the cleaning process can be automatically driven by the driving unit without manual high-altitude operation, the safety risk of the workers is reduced, the safety of the operation is improved, and the cleaning efficiency of the umbrella skirt in the arrester body is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the arrester cleaning device. Figure 2 It is a structural schematic view of the cooperation between the cleaning unit and the fixing frame. Figure 3The schematic diagram of the top view structure of the connecting part of the application; Figure 4 The schematic diagram of the structure of the cooperation between the gear set and the transmission unit of the application Figure 5 The schematic diagram of the structure of the cooperation between the circular-arc tooth ring and the guide gear of the application; Figure 6 The schematic diagram of the structure of the connecting part of the application; Figure 7 The schematic diagram of the structure of the transmission part of the application; Figure 8 The schematic diagram of the structure of the circular-arc gear of the application; Figure 9 The schematic diagram of the structure of the connecting ring of the application; Figure 10 The schematic diagram of the structure of the driving unit of the application; Figure 11 The schematic diagram of the structure of the cooperation between the driving gear and the circular-arc gear of the application; Figure 12 The schematic diagram of the structure of the initial state of the lower fixing frame of the application; Figure 13 The schematic diagram of the structure of the circular-arc tooth ring of the lower fixing frame of the application after rotation; Figure 14 The schematic diagram of the structure of the cleaning unit of the application.

[0019] In the figure: 1, support column; 2, lightning arrester body; 3, cleaning unit; 4, upper fixing frame; 5, lower fixing frame; 6, support pipeline; 7, driving unit; 11, mounting plate; 31, mounting frame; 32, cross rod; 33, cleaning plate; 41, connecting part; 42, circular-arc tooth ring; 43, first support shaft; 44, guide wheel; 45, arc-shaped support plate; 401, containing space; 402, circular-arc guide rail; 403, arc-shaped notch; 421, guide groove; 431, guide gear; 432, first transmission wheel; 433, first transmission belt; 441, support seat; 411, tooth groove; 51, circular-arc gear; 52, connecting ring; 61, second transmission wheel; 62, transmission gear; 63, second transmission belt; 64, transmission part; 601, second support shaft; 641, connecting rod; 642, tooth plate; 71, mounting seat; 711, positioning rod; 72, driver; 73, driving gear; 74, protective shell. DETAILED DESCRIPTION

[0020] The application will be described in detail below in combination with the drawings and examples: As Figures 1 to 14As shown, the present application provides a cleaning device for a power lightning arrester, comprising a positioning unit, a cleaning unit 3 and a driving unit 7; the positioning unit is arranged on the shaft body at both ends of the arrester body 2, the arrester body 2 is vertically arranged on the upper end of the support column 1 through the mounting plate 11; the cleaning unit 3 is connected with the positioning unit and contacts the umbrella skirt of the arrester body 2; The positioning unit comprises an upper fixing frame 4 and a lower fixing frame 5, both ends of the cleaning unit 3 are detachably arranged on the shaft body at both ends of the arrester body 2 through the upper fixing frame 4 and the lower fixing frame 5, the upper fixing frame 4 and the lower fixing frame 5 have the effect of two-point fixing on the cleaning unit 3, which ensures the stability of the cleaning unit 3 during rotation; a support pipe 6 is arranged between the upper fixing frame 4 and the lower fixing frame 5, the inside of the support pipe 6 is provided with a transmission unit, the driving unit 7 is arranged on the mounting plate 11, the driving unit 7 drives the positioning unit and the cleaning unit 3 to rotate around the shaft body of the arrester body 2, so that the umbrella skirt of the arrester body 2 is cleaned by the cleaning unit 3 which contacts the umbrella skirt of the arrester body 2.

[0021] In the above scheme, the upper fixing frame 4 and the lower fixing frame 5 are installed at the upper and lower ends of the shaft body of the arrester body 2, so that the cleaning unit 3 contacts the umbrella skirt of the arrester body 2, the positioning unit and the cleaning unit 3 are driven to rotate simultaneously by the driving unit 7, so that the cleaning unit 3 cleans the umbrella skirt in the arrester body 2, replacing manual cleaning and improving the cleaning efficiency of the umbrella skirt in the arrester body 2.

[0022] In order to facilitate the installation of the upper fixing frame 4 and the lower fixing frame 5 on the shaft body at both ends of the arrester body 2, the upper fixing frame 4 and the lower fixing frame 5 are both semicircular in the initial state, then the whole circle is realized by rotating the connection part 41 and the circular arc tooth ring 42 to limit the shaft body at both ends of the arrester body 2, in this embodiment, the upper fixing frame 4 comprises a connection part 41 and a circular arc tooth ring 42, the connection part 41 is a hollow semicircular arc-shaped shell with an accommodating space 401 inside, the arc-shaped shell is axially provided with a stepped through hole with a small upper part and a large lower part, the inner diameter of the upper part of the stepped through hole is equal to the inner diameter of the circular arc tooth ring 42, the inner diameter of the lower part of the stepped through hole is adapted to the outer diameter of the circular arc tooth ring 42 and is used for accommodating the circular arc tooth ring 42, the lower part of the connection part 41 (i.e. the position of the lower part of the stepped through hole) is provided with a semicircular arc-shaped notch 403, the inner cavity of the lower part of the connection part 41 (i.e. the lower part of the accommodating space 401) is communicated with the lower part of the stepped through hole through the arc-shaped notch 403; the circular arc tooth ring 42 is a circular tooth ring with an opening arranged radially, and the inner diameter of the opening is the same as the inner diameter of the circular tooth ring, the bottom surface of the connection part 41 (i.e. the opening at the lower end of the stepped through hole) is detachably provided with an arc-shaped support plate 45 for supporting the lower end surface of the circular arc tooth ring 42, the lower end surface of the circular arc tooth ring 42 is located on the arc-shaped support plate 45, and the circular arc tooth ring 42 is coaxially arranged in the lower part of the stepped through hole; a gear set for driving the circular arc tooth ring 42 to rotate is arranged in the accommodating space 401.

[0023] As shown in Figure 5 and Figure 6 In the embodiment, the upper cavity of the connecting part 41 (i.e. the upper part of the accommodating space 401) has a cavity wall and is isolated from the upper part of the stepped through hole by the cavity wall, and the cavity wall includes a top wall, a bottom wall, an inner wall and an outer wall.

[0024] As shown in Figure 5 and Figure 6 In order to limit the position of the circular arc tooth ring 42 during rotation, in the embodiment, the top wall of the lower part of the stepped through hole and the arc-shaped support plate 45 are both provided with a circular arc guide rail 402, and the upper and lower end faces of the circular arc tooth ring 42 are both provided with a guide groove 421 with two open ends corresponding to the circular arc guide rail 402, and the circular arc tooth ring 42 is coaxially arranged in the lower part of the stepped through hole by the circular arc guide rail 402 and the guide groove 421.

[0025] As shown in Figures 3 to 5 In order to realize the synchronous rotation of the two circular arc tooth rings 42 to wrap the lightning arrester body 2 with the cleaning device, in the embodiment, the gear set includes two first support shafts 43 vertically arranged on both sides of the circular arc tooth ring 42 in the accommodating space 401, and the upper and lower ends of each first support shaft 43 are rotatably arranged on the upper wall of the connecting part 41 and the arc-shaped support plate 45, respectively; a guide gear 431 is fixedly arranged on each first support shaft 43, the outer circumferential surface of the circular arc tooth ring 42 has a plurality of teeth and is engaged with the guide gear 431, and at least one guide gear 431 is engaged with the circular arc tooth ring 42 during rotation of the circular arc tooth ring 42; a first transmission wheel 432 is coaxially fixedly arranged on the first support shaft 43 above each guide gear 431, and the two first transmission wheels 432 are drivingly connected by a first transmission belt 433, the first transmission belt 433 is located above the first transmission wheel 432, the first transmission belt 433 can synchronously rotate the two first transmission wheels 432, the first transmission wheel 432 is a synchronous wheel, and the first transmission belt 433 is a synchronous belt, which can increase the stability of transmission between the two first transmission wheels 432. In order to bend the first transmission belt 433 and avoid the first transmission belt 433 contacting the upper cavity of the connecting part 41 to affect the transmission of the first transmission belt 433, in the embodiment, two guide wheels 44 are arranged between the two first transmission wheels 432 and contact the first transmission belt 433, the first transmission wheel 432 is located outside the circular arc tooth ring 42, the guide wheel 44 can tension the first transmission belt 433 on one hand and avoid the first transmission belt 433 contacting the inner wall of the connecting part 41 to cause abrasion on the other hand, the guide wheel 44 is a synchronous wheel, and the first transmission belt 433 is a synchronous belt; a support seat 441 is arranged below the guide wheel 44 to increase the height of the guide wheel 44 and avoid affecting the rotation of the circular arc tooth ring 42.

[0026] As Figure 6 , Figure 9 and Figure 10 shown, in the present application, the lower fixed frame 5 is additionally provided with a circular arc gear 51 on the basis of the upper fixed frame 4, the circular arc gear 51 is coaxially fixedly connected with the circular arc gear ring 42 through a connecting ring 52, the opening direction of the circular arc gear ring 42 is consistent with that of the circular arc gear 51, the radian value of the circular arc gear 51 is greater than one hundred and eighty degrees, the arc-shaped support plate 45 is located between the circular arc gear 51 and the circular arc gear ring 42 and is coaxially rotationally arranged with the connecting ring 52; the circumferential direction of the connecting portion 41 in the lower fixed frame 5 is provided with a gear slot 411; In the initial state, the circular arc gear ring 42 in the upper fixed frame 4 and the lower fixed frame 5 is located in the corresponding stepped through hole and the opening is outward, the upper fixed frame 4 and the lower fixed frame 5 are respectively sleeved on the upper and lower ends of the shaft body of the lightning arrester body 2; in the use process, the circular arc gear 51 serves as a transmission component; under the driving of the driving unit 7, the circular arc gear 51 first drives the circular arc gear ring 42 in the lower fixed frame 5 to rotate counterclockwise by one hundred and eighty degrees, so that the circular arc gear ring 42 in the lower fixed frame 5 realizes surrounding and limiting the lower end of the shaft body of the lightning arrester body 2; in the rotating process of the circular arc gear ring 42 in the lower fixed frame 5, the circular arc gear ring 42 in the upper fixed frame 4 is driven to rotate synchronously through the gear set and the transmission unit; so that the circular arc gear ring 42 in the upper fixed frame 4 realizes surrounding and limiting the upper end of the shaft body of the lightning arrester body 2.

[0027] As Figure 3 and Figure 7 shown, the support pipeline 6 is arranged in a horizontal U shape, and the inner cavity of the support pipeline 6 is in communication with the containing space 401 through the openings at both ends; the transmission unit includes a belt assembly arranged in the inner cavities of the upper and lower horizontal portions of the support pipeline 6 respectively and a transmission member 64 arranged in the inner cavity of the support pipeline 6, the circular arc gear ring 42 in the lower fixed frame 5 drives the transmission member 64 to move through the gear set in the lower fixed frame 5 and the belt assembly in the lower horizontal portion of the inner cavity of the support pipeline 6 in the rotating process, and makes the transmission member 64 drive the circular arc gear ring 42 in the upper fixed frame 4 to rotate synchronously through the gear set in the upper fixed frame 4 and the belt assembly in the upper horizontal portion of the inner cavity of the support pipeline 6.

[0028] The belt assembly includes a second support shaft 601, a second transmission wheel 61 and a transmission gear 62, the second support shaft 601 is vertically rotationally arranged in the support pipeline 6, the second transmission wheel 61 and the transmission gear 62 are coaxially fixed on the second support shaft 601, the second transmission wheel 61 is in transmission connection with the adjacent guide gear 431 through a second transmission belt 63, and the second transmission belt 63 is located above the first transmission belt 433; the second transmission wheel 61 adopts a synchronous wheel, and the second transmission belt 63 adopts a synchronous belt, which can increase the stability of transmission between the second transmission wheel 61 and the first transmission wheel 432; The transmission member 64 comprises a connecting rod 641 and tooth plates 642 meshing with the two transmission gears 62 respectively, the two tooth plates 642 are integrally formed with the connecting rod 641 and arranged in a U shape, the transmission gears 62 drive the tooth plates 642 to slide horizontally when rotating, or the tooth plates 642 drive the transmission gears 62 to rotate when sliding horizontally; in order to facilitate the installation of the transmission unit, the support pipe 6 adopts a split structure; specifically, the support pipe 6 comprises a U-shaped shell with a cavity and a front side opening and a U-shaped cover plate in a planar shape.

[0029] In the above scheme, in the initial state, the circular-arc tooth ring 42 is located in the accommodation space 401 of the connecting part 41 and the two ends of the circular-arc tooth ring 42 extend to the outside of the accommodation space 401; when the positioning unit is installed, the upper fixing frame 4 and the lower fixing frame 5 are respectively sleeved on the upper and lower ends of the shaft body of the lightning arrester body 2 through the connecting part 41 and the circular-arc tooth ring 42, and the support pipe 6 can be lifted to a predetermined height of the lightning arrester body 2 by an external device, thereby ensuring the stability between the two connecting parts 41 and the shaft body in the lightning arrester body 2; Then the driving unit 7 drives the circular-arc gear 51 to rotate, the circular-arc gear 51 drives the circular-arc tooth ring 42 in the lower fixing frame 5 to rotate, the circular-arc tooth ring 42 drives the two guide gears 431 to rotate when it rotates initially, and when the circular-arc tooth ring 42 is separated from one of the guide gears 431, the other guide gear 431 meshes with the circular-arc tooth ring 42; the circular-arc tooth ring 42 in the upper fixing frame 4 rotates and drives the two guide gears 431, and when one of the guide gears 431 is separated from the guide gear 431, the other guide gear 431 can always drive the circular-arc tooth ring 42 to rotate; when the circular-arc tooth ring 42 rotates out of the connecting part 41 and forms a complete circle with the connecting part 41, the sleeving of the end shaft body of the lightning arrester body 2 is completed; In the rotating process of the circular-arc tooth ring 42, the first transmission wheel 432 in the gear set drives the second transmission wheel 61 and the transmission gear 62 below the second transmission wheel 61 to rotate simultaneously through the second transmission belt 63, and the transmission gear 62 drives the transmission member 64 to move left and right through gear transmission; In the counterclockwise rotating process of the circular-arc tooth ring 42, the transmission gear 62 rotates clockwise, and the transmission gear 62 drives the tooth plate 642 to translate inward; when the circular-arc tooth ring 42 rotates counterclockwise by one hundred and eighty degrees, the connecting rod 641 is in contact with the inner wall of the outer side of the support pipe 6 and then moves to be in contact with the inner wall of the inner side of the support pipe 6, so that the transmission gear 62 is limited by the inner wall of the support pipe 6, and then the relative rotation between the connecting part 41 and the circular-arc tooth ring 42 is stopped, so that an integral body is formed between the connecting part 41 and the circular-arc tooth ring 42.

[0030] As Figure 9As shown, in order to reduce the friction between the connecting part 41 and the arc toothed ring 42 and the central shaft of the surge arrester body 2, in this embodiment, the upper part of the stepped through hole in the connecting part 41 and the inner wall of the arc toothed ring 42 are provided with a number of rotating rollers arranged in an annular array and the inner diameter of the annular array is adapted to the central shaft of the surge arrester body 2. The number of rotating rollers are in contact with the central shaft of the surge arrester body 2.

[0031] like Figures 8 to 13 As shown, the drive unit 7 includes a driver 72 that is detachably mounted on the mounting plate 11. The driver 72 is a geared motor with a reduction gear model of 86BLF4030MBB. The driver 72 is vertically arranged and has a drive gear 73. The thickness of the drive gear 73 is greater than the thickness of the arc gear 51. In the initial state, the drive gear 73 only meshes with the arc gear 51 and does not contact the connecting part 41 in the lower fixed frame 5.

[0032] In the above scheme, before the upper fixing frame 4 and the lower fixing frame 5 are fitted onto both ends of the arrester body 2 shaft, the U-shaped opening in the arc toothed ring 42 and the stepped through hole opening of the connecting part 41 face the same direction. First, the upper part of the U-shaped opening in the arc toothed ring 42 and the stepped through hole of the connecting part 41 are respectively brought into contact with the arrester body 2 shaft. Then, the drive unit 7 is installed on the mounting plate 11, and the drive gear 73 only meshes with the arc gear 51 and does not contact the connecting part 41 in the lower fixing frame 5 (e.g., Figure 12 (As shown); at this time, the driver 72 drives the drive gear 73 to rotate clockwise, the drive gear 73 drives the arc gear 51 to rotate counterclockwise, and the arc gear 51 drives the arc toothed ring 42 on the lower fixed frame 5 to rotate counterclockwise, that is, the arc toothed ring 42 rotates out from the inside of the connecting part 41; when the arc toothed ring 42 rotates 180 degrees counterclockwise, the arc toothed ring 42 in the upper fixed frame 4 and the lower fixed frame 5 and the connecting part 41 both form a complete circle, and the sleeve on the shaft of the surge arrester body 2 is completed. At this time, the arc toothed ring 42 is in the transmission... Under the action of component 64 (i.e., the connecting rod 641 moves to contact the inner wall of the supporting pipe 6, causing the connecting part 41 and the arc-shaped gear ring 42 to stop rotating relative to each other), the relative rotation between the connecting part 41 and the arc-shaped gear 51 stops, and the arc-shaped gear 51 and the connecting part 41 form a whole; the driving gear 73 continues to rotate clockwise, and the driving gear 73 drives the connecting part 41 in the lower fixed frame 5 to rotate through the arc-shaped gear 51, so that the driving gear 73 simultaneously meshes with the arc-shaped gear 51 and the tooth groove 411 on the connecting part 41 in the lower fixed frame 5 (e.g., Figure 13 As shown), the active gear 73 drives the positioning unit to rotate, which in turn causes the positioning unit to drive the cleaning unit 3 to rotate simultaneously. This cycle repeats (the active gear 73 meshes with the arc gear 51—meets with the arc gear 51 and the tooth groove 411 simultaneously—meets with the tooth groove 411—meets with the tooth groove 411 and the arc gear 51 simultaneously), so that the cleaning unit 3 can clean the skirt on the surge arrester body 2. The controller is arranged on the driver 72, the driving gear 73 on the driver 72 drives the positioning unit to rotate by an integer number of turns, after the cleaning unit 3 cleans the shed on the arrester body 2, the driving gear 73 is only engaged with the circular-arc gear 51, when the arrester body 2 needs to be disassembled after being cleaned, the positioning unit is supported by the support pipeline 6 through an external device, so that the upper fixing frame 4 and the lower fixing frame 5 do not fall off after being separated from the shaft body of the arrester body 2, then the driving gear 73 on the driver 72 rotates counterclockwise, the driving gear 73 drives the circular-arc gear 51 to rotate clockwise, and the circular-arc gear ring 42 in the lower fixing frame 5 rotates clockwise, in the process of clockwise rotation of the circular-arc gear ring 42 in the lower fixing frame 5, the circular-arc gear ring 42 in the upper fixing frame 4 is synchronously rotated clockwise through the gear set and the transmission unit, so that the two circular-arc gear rings 42 in the upper fixing frame 4 and the lower fixing frame 5 rotate to the initial state (in the initial state, the connecting rod 641 is in contact with the outer side inner wall of the support pipeline 6), the driver 72 stops rotating, at this time, the opening on the circular-arc gear ring 42 is consistent with the stepped through hole opening in the connecting part 41, so that the cleaning device can be taken off from the shaft body in the arrester body 2 through an external device.

[0033] In order to facilitate the installation or disassembly of the driver 72, in the embodiment, the lower end of the driver 72 is connected with a mounting seat 71, the mounting seat 71 is arranged in a U shape, the lower end of the mounting seat 71 is fixed on the mounting plate 11 through a positioning rod 711, the positioning rod 711 is a screw rod, a protective shell 74 is arranged on the mounting seat 71, the protective shell 74 has an open end facing the circular-arc gear 51, and the driver 72 is located in the protective shell 74.

[0034] As shown in FIG. 1, Figure 14 In order to clean the shed in the arrester body 2, in the embodiment, the cleaning unit 3 includes a mounting frame 31, the mounting frame 31 is arranged in a horizontal U shape, the two ends of the mounting frame 31 are respectively detachably mounted on the connecting part 41 of the upper fixing frame 4 and the lower fixing frame 5, so as to facilitate the use of the arrester body 2 with different heights, the mounting mode can adopt clamping, bolt connection and the like, which will not be described in detail here, a plurality of horizontal cross rods 32 are arranged on the inner side of the mounting frame 31 in a vertical direction, a cleaning plate 33 is arranged below the cross rod 32, the cleaning plate 33 is located above the shed in the arrester body 2 after being mounted and the lower end of the cleaning plate 33 is in contact with the surface of the shed, the cleaning plate 33 is made of rubber material, and the cleaning plate 33 is arranged in a slope along the circumferential direction of the arrester body 2 (that is, the cleaning plate 33 intersects the radial direction of the arrester body 1); the mounting frame 31 and the cross rod 32 are detachably mounted, so as to clean the shed in the arrester body 2 with different heights; the mounting frame 31 and the fixing frame can be connected by clamping, threaded connection and the like.

[0035] In this embodiment, the cleaning plates 33 can also be arranged on both sides of the cross rod 32 to clean the upper and lower surfaces of the umbrella skirt.

[0036] In the above scheme, before cleaning the umbrella skirt in the lightning arrester body 2, the positioning unit is installed on the shaft body of the lightning arrester body 2, and then the cleaning unit 3 and the positioning unit are driven to rotate around the shaft body of the lightning arrester body 2 by the driving unit 7, that is, the cleaning plate 33 in the cleaning unit 3 rotates on the umbrella skirt of the lightning arrester body 2, so as to realize comprehensive cleaning of the umbrella skirt of the lightning arrester body 2, and ensure the heat dissipation and safety of the lightning arrester body 2; the cleaning plate 33 is arranged in an inclined manner, which can guide the dust or impurities on the umbrella skirt of the lightning arrester body 2 to the edge of the umbrella skirt.

[0037] The cleaning plate 33 is made of rubber material, which can ensure the cleaning effect and avoid scratching the umbrella skirt of the lightning arrester body 2. After the cleaning plate 33 contacts the umbrella skirt of the lightning arrester body 2, the cleaning plate 33 is deformed downward under the pressure of the umbrella skirt of the lightning arrester body 2. The friction between the cleaning unit 3 and the umbrella skirt of the lightning arrester body 2 is greater than the friction between the circular arc gear 51 and the connecting part 41, so that the driving circular arc gear ring 42 is prevented from rotating out of the connecting part 41 (that is, the process of changing from the state of being outwardly opened to the state of being inwardly opened) when the driving circular arc gear ring 42 is driven by the driving gear 73, and the connecting part 41 in the lower fixed frame 5 is rotated during the rotation of the circular arc gear 51.

[0038] Working principle: Before cleaning the umbrella skirt on the lightning arrester body 2, the operation needs to be performed in sunny weather, and the lightning arrester is in a power-off state. The connecting part 41 in the two fixed frames is first contacted with the upper and lower ends of the shaft body on the lightning arrester body 2, and then the driving unit 7 is arranged on the mounting plate 11. The driving gear 73 is only engaged with the circular arc gear 51 in the lower fixed frame 5 and does not contact the connecting part 41 in the lower fixed frame 5. Subsequently, the driver 72 in the driving unit 7 is started, and the driver 72 drives the driving gear 73 to rotate clockwise. The driving gear 73 is first engaged with the circular arc gear 51 in the lower fixed frame 5, and drives the circular arc gear 51 to rotate counterclockwise. The circular arc gear 51 first drives the circular arc gear ring 42 in the lower fixed frame 5 to rotate counterclockwise by one hundred and eighty degrees, so as to realize the surrounding and limiting of the lower end of the shaft body of the lightning arrester body 2. During the rotation of the circular arc gear ring 42 in the lower fixed frame 5, the circular arc gear ring 42 in the upper fixed frame 4 is driven to rotate synchronously by the gear set and the transmission unit in the two fixed frames. Thus, the circular arc gear ring 42 in the upper fixed frame 4 realizes the surrounding and limiting of the upper end of the shaft body of the lightning arrester body 2. When the circular-arc gear 51 rotates one hundred and eighty degrees, the connecting rod 641 in the transmission member 64 contacts the inner wall of the support pipe 6, and at this time the circular-arc tooth ring 42 stops rotating under the action of the transmission member 64; The driving gear 73 continues to rotate, and the driving gear 73 is engaged with the tooth groove 411 of the connecting part 41 in the lower fixed frame 5 and the circular-arc gear 51 respectively, the connecting part 41 and the circular-arc tooth ring 42 form an integral rotation, so that the upper fixed frame 4 and the lower fixed frame 5 rotate synchronously along the axis of the arrester body 2, drive the cleaning unit 3 to rotate around the axis of the arrester body 2, and then make the cleaning unit 3 clean the shed of the arrester body 2; After the arrester body 2 is cleaned, the driving gear 73 on the driver 72 rotates counterclockwise, and the circular-arc tooth ring 42 in the lower fixed frame 5 rotates clockwise, and through the above process, the two circular-arc tooth rings 42 rotate to the initial state, the positioning unit is removed from the limitation of the shaft body in the arrester body 2, so as to take down the cleaning device from the arrester body 2, so as to avoid affecting the normal use of the arrester body 2.

[0039] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A cleaning device for power surge arresters, characterized in that, It includes a positioning unit, a cleaning unit, and a driving unit; the positioning unit is located on the shafts at both ends of the surge arrester body, and the cleaning unit is connected to the positioning unit and contacts the skirt of the surge arrester body. The positioning unit includes an upper fixed frame and a lower fixed frame. The two ends of the cleaning unit are detachably mounted on the shafts at both ends of the surge arrester body through the upper fixed frame and the lower fixed frame, respectively. A support pipe is provided between the upper fixed frame and the lower fixed frame. The driving unit is located on one side of the lower end of the surge arrester body. The driving unit drives the positioning unit and the cleaning unit to rotate around the shaft of the surge arrester body. The upper fixing frame includes a connecting part and an arc toothed ring. The connecting part is a hollow semi-circular arc-shaped shell with an internal accommodating space. The lower side wall of the connecting part is provided with a semi-circular arc notch. The inner cavity of the lower part of the connecting part is connected to the lower part of the stepped through hole through the arc notch. The bottom surface of the connecting part is detachably provided with an arc-shaped support plate for supporting the lower end face of the arc-shaped toothed ring, and a gear set for driving the arc-shaped toothed ring to rotate is provided in the accommodating space. The lower fixed frame has the same structure as the upper fixed frame, but is equipped with an additional arc gear that meshes with the drive unit. The arc gear is connected to the arc toothed ring. A transmission unit is installed inside the support pipe. Before the drive unit drives the arc toothed ring to rotate to a set angle, the arc toothed ring rotates relative to the connecting part. The arc toothed rings in both the upper and lower fixed frames rotate synchronously through the transmission unit and the gear set. After the drive unit drives the arc toothed ring to rotate to the set angle, the drive unit drives the arc toothed ring to rotate synchronously with the connecting part.

2. The cleaning equipment for the power surge arrester according to claim 1, characterized in that: The gear set includes two first support shafts that are vertically rotatably arranged symmetrically within the accommodating space. The upper and lower ends of the first support shafts are respectively rotatably mounted on the upper wall of the connecting part and the arc-shaped support plate. A guide gear is fixedly mounted on the first support shaft. The outer circumferential surface of the arc-shaped toothed ring has several teeth that mesh with the guide gear. A first transmission wheel is coaxially fixedly mounted on the first support shaft above the guide gear. The two first transmission wheels are connected by a first transmission belt.

3. The cleaning equipment for the power surge arrester according to claim 2, characterized in that: Two guide wheels that contact the first transmission belt are provided between the two first transmission wheels, and the first transmission wheels are located on the outside of the circular arc toothed ring.

4. The cleaning equipment for the power surge arrester according to claim 1, characterized in that: The support pipe is U-shaped and connected to the receiving space. The transmission unit includes a belt assembly and a transmission component installed inside the support pipe. During rotation, the arc toothed ring in the lower fixed frame drives the transmission component to move through the gear set in the lower fixed frame and the belt assembly in the lower horizontal cavity of the support pipe. The transmission component drives the arc toothed ring in the upper fixed frame to rotate synchronously through the gear set in the upper fixed frame and the belt assembly in the upper horizontal cavity of the support pipe.

5. The cleaning equipment for the power surge arrester according to claim 4, characterized in that: The belt assembly includes a second support shaft, a second drive wheel, and a drive gear. The second support shaft is vertically rotatably mounted inside the support pipe. The second drive wheel and the drive gear are coaxially fixed on the second support shaft. The second drive wheel is connected to the adjacent guide gear via a second drive belt, which is located above the first drive belt.

6. The cleaning equipment for the power surge arrester according to claim 4, characterized in that: The transmission component includes a connecting rod and toothed plates that mesh with two transmission gears respectively. The two toothed plates are integrally formed with the connecting rod and are arranged in a U-shape.

7. The cleaning equipment for the power surge arrester according to claim 1, characterized in that: The circular arc gear is coaxially and fixedly connected to the circular arc gear ring through a connecting ring. The opening direction of the circular arc gear ring is the same as the opening direction of the circular arc gear. The arc-shaped support plate is located between the circular arc gear and the circular arc gear ring and is set with the connecting ring. The connecting part in the lower fixed frame has a toothed groove in the circumferential direction.

8. The cleaning equipment for the power surge arrester according to claim 7, characterized in that: The drive unit includes a driver that is detachably mounted on the support ring. The driver is vertically positioned and has a drive gear. In the initial state, the drive gear only meshes with the arc gear and does not contact the connecting part in the lower fixed frame.

9. The cleaning equipment for the power surge arrester according to claim 8, characterized in that: The radius of a circular arc gear is greater than 180 degrees.

10. The cleaning equipment for the power surge arrester according to claim 1, characterized in that: The cleaning unit includes a mounting frame, which is a horizontally placed U-shape. The two ends of the mounting frame are respectively installed on the connecting parts of the upper fixed frame and the lower fixed frame. Several horizontal crossbars are arranged at intervals along the vertical direction on the inner side of the mounting frame. A cleaning plate is provided below the crossbars. After installation, the cleaning plate is located above the umbrella skirt in the surge arrester body and its lower end is in contact with the surface of the umbrella skirt.

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