Transformer substation high-voltage equipment insulator dust removal device

Abstract

A dust removal device for a transformer substation high-voltage equipment insulator relates to the field of high-voltage equipment cleaning tools and comprises an insulating rod, a support, a telescopic arm, a cleaning mechanism, a driving mechanism and a dust removal mechanism. The shape of the support is a semi-arc shape matched with the shape of the insulator. The telescopic arms are symmetrically arranged at the two ends of the bracket and move towards or away from each other to adapt to the diameter of the insulator; the cleaning mechanism is arranged at the end part of the telescopic arm to clean the surface of the insulator; the driving mechanism is arranged on the support and connected with the telescopic arm to drive the telescopic arm to move in the support. And the dust removal mechanism is arranged on the bracket and is used for blowing and removing dust for the insulator. Before cleaning, the second pneumatic motor drives the gear to rotate so as to drive the telescopic arm to move in the support, so that the telescopic arm moves in the opposite direction or the opposite direction to be close to the surface of the insulator, insulators of different sizes and different models can be adapted, the better cleaning effect is achieved, pneumatic equipment is used, and electrification is not needed. And the safety is ensured while the workload of workers is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of high-voltage equipment cleaning tools, in particular to a dust removal device for insulators of high-voltage equipment in a transformer substation. Background Art

[0002] Porcelain insulators are a common special equipment accessory for high-voltage equipment in power systems. They are usually made of ceramic materials. Their main function is to support and fix bare current-carrying conductors to form insulation between the conductors and the ground. They are used for isolating switches, insulating supports for conductors, bushings for transformers and circuit breakers, porcelain sleeves for current transformers and voltage transformers, etc. Due to factors such as the operating environment of outdoor high-voltage equipment, porcelain insulators are prone to dust accumulation or surface contamination, which can cause external insulation flashover. When the ambient humidity is high, it is easy to cause discharge flashover, which can cause a short circuit to the ground and equipment tripping in severe cases. Insulators are often located in complex locations, and traditional cleaning equipment has poor cleaning effects. Different sizes of insulators require different cleaning equipment. Due to the particularity of high-voltage equipment, the cleaning equipment itself must not have live equipment, so the cleaning work must be done manually by the staff, which greatly increases the workload for the staff and needs to be improved. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a dust removal device for insulators of high-voltage equipment in a transformer substation.

[0004] The utility model adopts the following technical solutions:

[0005] A dust removal device for insulators of high-voltage equipment in a transformer substation comprises an insulating rod, a bracket, a telescopic arm, a cleaning mechanism, a driving mechanism and a dust removal mechanism, wherein the insulating rod is connected to the bracket to move the bracket to the insulator to be cleaned; the shape of the bracket is a semicircular arc that matches the shape of the insulator; the telescopic arms are symmetrically arranged at both ends of the bracket, and the two telescopic arms can move toward or away from each other along the arc direction of the bracket to adapt to the diameter of the insulator; the cleaning mechanism is arranged at the end of the telescopic arm to clean the surface of the insulator located between the two telescopic arms; the driving mechanism is arranged on the bracket and connected to the telescopic arm to drive the telescopic arm to move in the bracket, comprising a rack, a gear and a first pneumatic motor, the rack being formed on the outer surface of the telescopic arm along the extension direction of the telescopic arm; the gear is arranged on the bracket and meshes with the rack; the first pneumatic motor is connected to the gear to drive the gear to rotate to drive the telescopic arm to extend and retract in the bracket; the dust removal mechanism is arranged on the bracket to blow air to remove dust from the insulator.

[0006] Preferably, the cleaning mechanism is arranged at the end of the telescopic arm to clean the surface of the insulator located between the two telescopic arms, and includes a rotating brush and a second pneumatic motor, the rotating brush is arranged on the telescopic arm; the second pneumatic motor and the rotating brush drive the rotating brush to rotate.

[0007] Preferably, the dust removal mechanism includes a spray gun, a distance sensor and a controller, the spray gun is arranged on the bracket opposite to the insulator between the two telescopic arms; the distance sensor is arranged on the bracket to detect the distance from the spray gun to the insulator; the controller controls the spray gun to spray dust according to the signal feedback from the distance sensor.

[0008] Preferably, it also includes an air pipe, one end of which is arranged on the bracket and connected to the second pneumatic motor, the first pneumatic motor and the spray gun respectively, and the other end of the air pipe is extended to the outside of the device along the extension direction of the insulating rod.

[0009] Preferably, the rotating brushes are symmetrically arranged on the upper and lower sides of the telescopic arm, and the second pneumatic motor and the rotating brushes are connected between the rotating brush and the bracket in a one-to-one correspondence.

[0010] Preferably, it also includes a connecting mechanism arranged between the insulating rod and the bracket, the connecting mechanism includes a fixed seat, a rotating seat and a bolt and nut assembly, the fixed seat is arranged on the bracket; the rotating seat is arranged at the end of the insulating rod and is rotatably connected to the fixed seat; the bolt and nut assembly passes through the fixed seat and is connected to the rotating seat in sequence to fix the angle between the two.

[0011] Preferably, both ends of the bracket are respectively recessed inward to form an arc groove, the shape of the telescopic arm is the same arc as the bracket, and its curvature is the same as the curvature of the arc groove, the cross-section of the arc groove is adapted to the cross-section of the telescopic arm, and the telescopic arm is movably set in the arc groove.

[0012] It can be seen from the above description of the utility model that, compared with the prior art, the utility model has the following beneficial effects: before cleaning, the second pneumatic motor drives the gear to rotate to drive the telescopic arm to move in the bracket, so that it moves in opposite directions or opposite directions to get close to the surface of the insulator, and can adapt to insulators of different sizes and models to achieve better cleaning effects. The pneumatic equipment does not need to be powered on, which reduces the workload of the staff while ensuring safety. The telescopic arm can also be used to drive the cleaning mechanism to move during cleaning, thereby improving the cleaning angle of the insulator, further reducing the workload, and improving the cleaning effect.

[0013] The rotation of the rotating brush is achieved by pneumatic means, and the equipment is not electrified, which improves the cleaning effect and safety at the same time;

[0014] The distance sensor monitors the position of the insulator. When the distance reaches the preset value, the controller controls the spray gun to spray air to assist dust removal and further improve the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 2for Figure 1 A partial enlarged view of the middle A;

[0017] Figure 3 The structure of the utility model is shown in FIG. Figure 2 ;

[0018] Figure 4 The structure of the utility model is shown in FIG. Figure 3 ;

[0019] Figure 5 The structure of the utility model is shown in FIG. Figure 4 ;

[0020] In the figure: 1-insulating rod, 2-bracket, 21-arc groove, 22-allowance hole, 3-connecting mechanism, 31-fixed seat, 32-rotating seat, 33-bolt and nut assembly, 4-telescopic arm, 5-cleaning mechanism, 51-rotating brush, 52-second pneumatic motor, 6-driving mechanism, 61-rack, 62-gear, 63-first pneumatic motor, 7-dust removal mechanism, 71-spray gun, 72-distance sensor, 8-air pipe. DETAILED DESCRIPTION

[0021] The present invention is further described below through specific implementation methods.

[0022] Reference Figures 1 to 5 As shown, a dust removal device for insulators of high-voltage equipment in a substation includes an insulating rod 1, a bracket 2, a connecting mechanism 3, a telescopic arm 4, a cleaning mechanism 5, a driving mechanism 6, a dust removal mechanism 7, and an air pipe 8.

[0023] The insulating rod 1 is connected to the bracket 2, and the bracket 2 is moved to the insulator to be cleaned.

[0024] The shape of the bracket 2 is a semicircular arc that matches the shape of the insulator.

[0025] The connecting mechanism 3 is connected between the insulating rod 1 and the bracket 2, and includes a fixed seat 31, a rotating seat 32 and a bolt and nut assembly 33. The fixed seat 31 is set on the bracket 2; the rotating seat 32 is set at the end of the insulating rod 1 and is rotatably connected to the fixed seat 31; the bolt and nut assembly 33 passes through the fixed seat 31 and the rotating seat 32 in sequence to fix the angle between the two. The angle between the insulating rod 1 and the bracket 2 can be adjusted according to the position of the insulator to be cleaned to adapt to the usage scenario.

[0026] The telescopic arms 4 are symmetrically arranged at both ends of the bracket 2, and the two telescopic arms 4 can move toward or away from each other along the arc direction of the bracket 2 to adapt to the diameter of the insulator. Specifically, the two ends of the bracket 2 are respectively recessed inward to form an arc groove 21, and the shape of the telescopic arm 4 is the same arc shape as the bracket 2, and its curvature is the same as the curvature of the arc groove 21, and the cross section of the arc groove 21 is adapted to the cross section of the telescopic arm 4, and the telescopic arm 4 is movably arranged in the arc groove 21.

[0027] The cleaning mechanism 5 is arranged at the end of the telescopic arm 4 to clean the surface of the insulator between the two telescopic arms 4. The cleaning mechanism 5 is arranged at the end of the telescopic arm 4 to clean the surface of the insulator between the two telescopic arms 4, and includes a rotating brush 51 and a second pneumatic motor 52. The rotating brush 51 is arranged on the telescopic arm 4; the second pneumatic motor 52 and the rotating brush 51 drive the rotating brush 51 to rotate. The rotation of the rotating brush 51 is achieved by pneumatic means, and the equipment is not electrified, which improves the cleaning effect while also improving safety. Specifically, the rotating brush 51 is symmetrically arranged on the upper and lower sides of the telescopic arm 4, and the second pneumatic motor 52 and the rotating brush 51 are connected one-to-one between the rotating brush 51 and the bracket 2.

[0028] The driving mechanism 6 is arranged on the bracket 2 and connected with the telescopic arm 4 to drive the telescopic arm 4 to move in the bracket 2, and includes a rack 61, a gear 62 and a first pneumatic motor 63. The rack 61 is formed on the outer surface of the telescopic arm 4 along the extension direction of the telescopic arm 4; the gear 62 is arranged on the bracket 2 and meshes with the rack 61. The bracket 2 is formed with a clearance hole 22 connected with the internal arc groove 21. The rack 61 is located at the clearance hole 22 and meshes with the rack 61 on the internal telescopic arm 4; the first pneumatic motor 63 is connected with the gear 62 to drive the gear 62 to rotate to drive the telescopic arm 4 to extend and retract in the bracket 2. Before cleaning, the second pneumatic motor 52 drives the gear 62 to rotate to drive the telescopic arm 4 to move in the bracket 2, so that it moves in the opposite or opposite directions to get close to the surface of the insulator, and can adapt to insulators of different sizes and models to achieve better cleaning effects. The use of pneumatic equipment does not require electricity, which reduces the workload of the staff while ensuring safety. During cleaning, the telescopic arm 4 can be extended and retracted to drive the cleaning mechanism 5 to move, thereby improving the cleaning angle of the insulator, further reducing the workload and improving the cleaning effect.

[0029] The dust removal mechanism 7 is arranged on the bracket 2 to blow air to remove dust from the insulator. The dust removal mechanism 7 includes a spray gun 71, a distance sensor 72 and a controller. The spray gun 71 is arranged on the bracket 2 and fixed on the fixing seat 31, facing the insulator between the two telescopic arms 4; the distance sensor 72 is arranged on the bracket 2 and located next to the spray gun 71, and is used to detect the distance from the spray gun 71 to the insulator; the controller controls the spray gun 71 to spray dust according to the signal fed back by the distance sensor 72.

[0030] The air pipe 8 is connected to the air supply equipment, extends upward along the insulating rod 1 to the bracket 2 and is connected to the spray gun 71, and extends to both sides to be connected to the first air motor 63 and the second air motor 52 respectively, and can supply air to the spray gun 71, the first air motor 63, and the second air motor 52 separately.

[0031] Before cleaning, the staff adjusts the angle between the insulating rod 1 and the bracket 2 according to the position and diameter of the insulator to be cleaned, and starts the air supply device to control the first pneumatic motor 63 to move the telescopic arm 4 to the appropriate position. After the bracket 2 is moved to the insulator through the insulating rod 1 so that the insulator is located between the rotating brushes 51 on the telescopic arm 4, the first starting motor is started for the second time to fine-tune the distance between the two rotating brushes 51 to complete the adaptation of the insulator. During cleaning, the second pneumatic motor 52 is controlled to drive the rotating brush 51 to rotate, and the distance sensor 72 detects the insulator and feeds back the signal to the controller. The controller controls the spray gun 71 to spray forward to assist in dust removal. When cleaning, the staff holds the insulating rod 1 and rotates around the insulator for all-round cleaning. When there is an angle problem that cannot be achieved by moving, the first pneumatic motor 63 can be controlled to drive the telescopic arm 4 to extend and retract to drive the rotating brush 51 to move around the insulator to clean the angle that is difficult to clean, thereby improving the adaptability of the equipment. It can adapt to insulators of different sizes and models, improve the cleaning angle of the insulators, and achieve better cleaning effects. The use of pneumatic equipment does not require electricity, which reduces the workload of staff while ensuring safety.

[0032] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of implementation of the present utility model. That is, equivalent changes and modifications made according to the scope of the patent application of the present utility model and the contents of the specification should still fall within the scope covered by the patent of the present utility model.

Claims

1. A dust removal device for insulators of high-voltage equipment in a substation, characterized in that: The utility model comprises an insulating rod, a bracket, a telescopic arm, a cleaning mechanism, a driving mechanism and a dust removal mechanism, wherein the insulating rod is connected to the bracket, and the bracket is moved to the insulator to be cleaned; the shape of the bracket is a semicircular arc that matches the shape of the insulator; the telescopic arms are symmetrically arranged at both ends of the bracket, and the two telescopic arms can move toward or away from each other along the arc direction of the bracket to adapt to the diameter of the insulator; the cleaning mechanism is arranged at the end of the telescopic arm to clean the surface of the insulator located between the two telescopic arms; the driving mechanism is arranged on the bracket and connected to the telescopic arm to drive the telescopic arm to move in the bracket, and comprises a rack, a gear and a first pneumatic motor, and the rack is formed on the outer surface of the telescopic arm along the extension direction of the telescopic arm; the gear is arranged on the bracket and meshes with the rack; the first pneumatic motor is connected to the gear and drives the gear to rotate to drive the telescopic arm to extend and retract in the bracket; the dust removal mechanism is arranged on the bracket to blow air to remove dust from the insulator.

2. A dust removal device for insulators of high-voltage equipment in a substation according to claim 1, characterized in that: The cleaning mechanism is arranged at the end of the telescopic arm to clean the surface of the insulator located between the two telescopic arms, and includes a rotating brush and a second pneumatic motor. The rotating brush is arranged on the telescopic arm; the second pneumatic motor and the rotating brush drive the rotating brush to rotate.

3. A dust removal device for insulators of high-voltage equipment in a substation according to claim 2, characterized in that: The dust removal mechanism includes a spray gun, a distance sensor and a controller. The spray gun is arranged on the bracket opposite to the insulator between the two telescopic arms; the distance sensor is arranged on the bracket to detect the distance from the spray gun to the insulator; and the controller controls the spray gun to spray dust according to the signal fed back by the distance sensor.

4. The dust removal device for insulators of high-voltage equipment in a substation according to claim 3, characterized in that: It also includes an air pipe, one end of which is arranged on the bracket and connected to the second air motor, the first air motor and the spray gun respectively, and the other end of which is extended to the outside of the device along the extension direction of the insulating rod.

5. The dust removal device for insulators of high-voltage equipment in a substation according to claim 2, characterized in that: The rotating brushes are symmetrically arranged on the upper and lower sides of the telescopic arm, and the second pneumatic motor and the rotating brushes are connected between the rotating brush and the bracket in a one-to-one correspondence.

6. The dust removal device for insulators of high-voltage equipment in a substation according to claim 1, characterized in that: It also includes a connecting mechanism arranged between the insulating rod and the bracket, the connecting mechanism includes a fixed seat, a rotating seat and a bolt and nut assembly, the fixed seat is arranged on the bracket; the rotating seat is arranged at the end of the insulating rod and is rotatably connected to the fixed seat; the bolt and nut assembly passes through the fixed seat and is connected to the rotating seat in sequence to fix the angle between the two.

7. The dust removal device for insulators of high-voltage equipment in a substation according to claim 1, characterized in that: The two ends of the bracket are respectively recessed inward to form an arc groove, the shape of the telescopic arm is the same arc as the bracket, and its curvature is the same as the curvature of the arc groove, the cross-section of the arc groove is adapted to the cross-section of the telescopic arm, and the telescopic arm is movably set in the arc groove.

Images