Carbon brush cleaning device for hydroelectric generation

Abstract

The utility model provides a carbon brush cleaning device for hydroelectric generation, which comprises a cleaning box, a guide plate is fixedly arranged in the cleaning box, the upper part of the guide plate is a cleaning area, the lower part of the guide plate is a collecting area, the cleaning area is provided with two limiting plates which are relatively slidably adjusted, a protection mechanism is arranged below the limiting plates, and a guide pipe is arranged on one side of the protection mechanism. The flow guide pipe is installed on the inner wall of the cleaning box, and a plurality of nozzles are arranged on one side of the flow guide pipe and right face the protection mechanism. By arranging the protection mechanism, in the moving process of a limiting plate, the limiting plate can drive a sliding base to move along a sliding groove through a connecting rod in the protection mechanism, then an electrostatic adsorption net is driven to move to the middle in the cleaning box, and when high-pressure gas cleaning is conducted on the carbon brush, part of scattered carbon powder is adsorbed through the electrostatic adsorption net; therefore, the carbon powder is prevented from entering the nozzle and blocking the nozzle, so that the gas is smoothly blown out, and the cleaning effect is reduced.

Description

Technical Field

[0001] The utility model relates to the field of carbon brush cleaning for hydropower generation, in particular to a carbon brush cleaning device for hydropower generation. Background Art

[0002] Carbon brush assembly is an important component of the motor, responsible for conducting current between the rotating parts and the stationary parts, and is mostly made of graphite. Carbon brush assembly is mostly mounted on the commutator or slip ring, and is a sliding contact body. It needs to have the characteristics of smoothness, wear resistance, and good conductivity. Depending on the application, they are either partially metal parts, rich or completely made of metal. In actual use, a slip ring is usually equipped with at least two carbon brush assemblies to avoid short circuit due to poor contact of a single carbon brush assembly.

[0003] After being used for a period of time, the carbon brush will wear out due to friction with the conductor. The carbon powder produced by the wear will cause poor contact between the carbon brush and the conductor, affecting the conductive properties of the carbon brush.

[0004] Chinese patent announcement number CN217314882U discloses a carbon deposit cleaning mechanism for carbon brushes, which drives the cleaning frame to move through the cooperation of an electric telescopic rod and a support rod, and blows air to the carbon brushes in the inner cavity of the cleaning frame through the cooperation of an air pump, a conduit, a ring exhaust pipe and a nozzle, and blows off the carbon deposits, and at the same time, the carbon deposits on the carbon brushes are quickly cleaned through the cleaning brush in the inner cavity of the cleaning frame. This avoids the problem that when cleaning carbon deposits on the carbon brushes, the workers usually use tools to clean them manually, which is slow and wastes a lot of time for the workers. The carbon deposits on the carbon brushes can be cleaned quickly, saving the workers' time to clean the carbon deposits and improving the cleanliness of the carbon brushes.

[0005] However, compared with the existing technology and comparative documents, when the surface of the carbon brush is cleaned by high-pressure gas, in order to improve the cleaning effect, it is necessary to spray high-pressure gas on multiple surfaces of the carbon brush at the same time. During the spraying, due to the relatively chaotic internal airflow, some carbon powder will accumulate inside the nozzle, thereby causing the nozzle to be blocked, the gas to be blown out poorly, and the cleaning effect to be reduced. Utility Model Content

[0006] The main purpose of the utility model is to provide a carbon brush cleaning device for hydroelectric power generation to solve the problems in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is: comprising a cleaning box, a guide plate is fixedly arranged in the cleaning box, the upper part of the guide plate is a cleaning area, the lower part is a collecting area, the cleaning area is provided with two limit plates that are relatively slidable and adjustable, a protective mechanism is provided below the limit plate, a guide pipe is provided on one side of the protective mechanism, the guide pipe is installed on the inner wall of the cleaning box, a plurality of nozzles are provided on one side of the guide pipe, and the nozzles are directly facing the protective mechanism;

[0008] Linear guide rails are installed through both sides of the top of the cleaning box. Sliding electric clamps are arranged on the linear guide rails. The electric clamps slide between two limit plates. The electric clamps are used to clamp the carbon brushes and enter the cleaning box.

[0009] Preferably, empty slots are provided on both sides of the top of the cleaning box, both ends of the linear guide rail extend out of the empty slots, and protective brushes are fixedly provided on both sides of the empty slots.

[0010] Preferably, an adjusting screw is provided between the middle of the limiting plate and the cleaning box, one end of the adjusting screw rests on the limiting plate for rotation, and the other end is connected to the cleaning box through a thread sleeve.

[0011] Preferably, guide rods are provided on both sides of the adjusting screw, one end of the guide rod is fixed on the limit plate, and the other end of the guide rod slides against the cleaning box.

[0012] Preferably, the electrostatic adsorption net in the protective mechanism is fixed on the limit plate, and slide grooves are provided on both sides of the electrostatic adsorption net. The slide grooves are fixed in the cleaning box, and a connecting rod is provided between the electrostatic adsorption net and the slide grooves. One end of the connecting rod is fixed on the limit plate, and the other end slides in the slide groove through a sliding seat.

[0013] Preferably, the electrostatic adsorption net is arranged obliquely, and the electrostatic adsorption nets on both sides of the cleaning box are arranged obliquely in a V shape.

[0014] Preferably, a connecting pipe is provided on the outside of the cleaning box, the connecting pipe is connected to the guide pipe, and the guide pipes on both sides of the inside of the cleaning box are arranged obliquely and crosswise.

[0015] Preferably, the collection area is provided with a dust suction pump and a collection box, the air inlet of the dust suction pump is connected to the guide plate through an air suction pipe, and the air outlet is connected to the collection box.

[0016] The utility model provides a carbon brush cleaning device for hydropower generation. By setting a protective mechanism, during the movement of the limit plate, the limit plate can drive the sliding seat to move along the slide groove through the connecting rod in the protective mechanism, thereby driving the electrostatic adsorption net to move to the middle of the cleaning box. When the carbon brush is cleaned with high-pressure gas, part of the scattered carbon powder is adsorbed by the electrostatic adsorption net, thereby preventing the carbon powder from entering the nozzle and clogging it, thereby ensuring smooth blowing of the gas and reducing the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 It is an axial side view of the overall structure of the utility model;

[0019] Figure 2 This utility model Figure 1 A front cross-sectional view of

[0020] Figure 3 This is a schematic diagram of the connection between the flow guide pipe and the protection mechanism of the utility model;

[0021] Figure 4 This utility model Figure 3 A magnified view of a part A;

[0022] Figure 5 This utility model Figure 1 A side sectional view of

[0023] In the figure: cleaning box 1; guide pipe 2; limit plate 3; protection mechanism 4; connecting rod 401; sliding seat 402; slide groove 403; electrostatic adsorption net 404; adjusting screw 5; guide rod 6; nozzle 7; connecting pipe 8; empty slot 9; protection brush 10; linear guide rail 11; connecting seat 12; electric clamp 13; guide plate 14; exhaust pipe 15; dust pump 16; collection box 17. DETAILED DESCRIPTION

[0024] like Figures 1 to 5 As shown, a carbon brush cleaning device for hydropower generation includes a cleaning box 1, and flow guide pipes 2 are installed on both side walls of the cleaning box 1. The flow guide pipes 2 can convey high-pressure gas. The flow guide pipes 2 are connected to the cleaning box 1 by buckles. Two groups of flow guide pipes 2 are inclined along the central axis of the cleaning box 1 in a cross-type, so that the nozzle 7 can be inclined to increase the cleaning area of ​​the carbon brush. A limit plate 3 is arranged above the flow guide pipe 2. The limit plate 3 can limit the two sides of the carbon brush to avoid the carbon brush shaking when the carbon powder is cleaned with high pressure. A protective mechanism 4 is connected to the bottom of the limit plate 3, and the protective mechanism 4 is an inclined structure. The protective mechanism 4 is located outside the flow guide pipe 2;

[0025] The protective mechanism 4 includes a connecting rod 401 fixed on both sides of the bottom of the limiting plate 3, the connecting rod 401 can be installed with an electrostatic adsorption net 404, a sliding seat 402 is installed at the bottom of the connecting rod 401, and a slide groove 403 is slidably connected to the outer side of the sliding seat 402. The sliding seat 402 can move along the slide groove 403, thereby ensuring the stability of the connecting rod 401 and the electrostatic adsorption net 404 when moving. The back of the slide groove 403 is fixedly connected to the side wall of the cleaning box 1, and an electrostatic adsorption net 404 is installed between the connecting rods 401, and the electrostatic adsorption net 404 can adsorb part of the carbon powder.

[0026] Preferred as Figure 1-Figure 3 As shown, the middle part of the back end of the limit plate 3 is connected with an adjusting screw 5 through a bearing, and the adjusting screw 5 passes through the side wall of the cleaning box 1. The staff can use the adjusting bolt to adjust the distance between the limit plates 3 according to the size of the carbon brush. Guide rods 6 are symmetrically installed on both sides of the back of the limit plate 3. The guide rods 6 are a telescopic structure. The stability of the limit plate 3 during movement can be ensured by the guide rods 6.

[0027] Preferred as Figure 1-Figure 3As shown, a plurality of nozzles 7 are installed at equal intervals on one side of the guide tube 2. The nozzles 7 can blow high-pressure gas to the surface of the carbon brush to clean it. The nozzles 7 face the protective mechanism 4. A connecting pipe 8 is installed on the back of the guide tube 2. The connecting pipe 8 can be connected to an external gas supply device. The connecting pipe 8 runs through the side wall of the cleaning box 1.

[0028] Preferred as Figure 2 As shown, empty grooves 9 are opened on the upper part of the two side walls of the cleaning box 1, which are convenient for the connecting seat 12, the electric clamp 13 and the carbon brush to enter the cleaning box 1 through the empty grooves 9. Protective brushes 10 are symmetrically installed on the outside of the empty grooves 9, and the opposite surfaces of the two groups of protective brushes 10 are against each other. The protective brushes 10 can block the outside of the empty grooves 9 to prevent carbon powder from escaping from the cleaning box 1.

[0029] Preferred as Figure 2-Figure 4 As shown, a linear guide 11 is installed on the top of the cleaning box 1, and the linear guide 11 passes through the cleaning box 1 through the empty slot 9. A connecting seat 12 is installed on the outside of the linear guide 11, and an electric clamp 13 is fixed on the bottom of the connecting seat 12. The electric clamp 13 can clamp and fix the carbon brush, and then the linear guide 11 drives the carbon brush into the cleaning box 1 through the connecting seat 12 and the electric clamp 13 for cleaning.

[0030] Preferred as Figure 2-Figure 4 As shown, a guide plate 14 is installed in the middle of the cleaning box 1 in a mirror-like manner. The two guide plates 14 are connected to form a V-shaped structure, and a through hole is opened in the middle of the connection between the two guide plates 14. The guide plate 14 can guide the blown-off carbon powder to the middle.

[0031] Preferred as Figure 2-Figure 4 As shown, an exhaust pipe 15 is installed in the middle of the guide plate 14, one end of the exhaust pipe 15 is connected to a dust pump 16, and one end of the dust pump 16 is connected to a collection box 17 through a pipeline, and a sealing door is connected to the corresponding collection box 17 on the cleaning box 1, so that the dust pump 16 can extract the scattered carbon powder above the guide plate 14 through the exhaust pipe 15, and transport the carbon powder to the collection box 17 for unified recovery, and the staff can regularly clean the collection box 17 through the sealing door.

[0032] Working principle of this device: When this device is used in practice, the staff can use the adjusting bolt to adjust the spacing between the limit plates 3 according to the size of the carbon brush. During the adjustment process, the guide rod 6 can ensure the stability of the limit plate 3 when it moves. During the adjustment, the limit plate 3 drives the sliding seat 402 to move along the slide groove 403 through the connecting rod 401 in the protective mechanism 4, and then drives the electrostatic adsorption net 404 to move to the middle of the cleaning box 1, and the electric clamp 13 clamps the fixed carbon brush, and then the linear guide 11 drives the carbon brush into the cleaning box 1 through the connecting seat 12 and the electric clamp 13. At this time, the connecting pipe 8 is connected to the external air supply equipment, and the guide pipe 2 can deliver high-pressure gas. These high-pressure gases can be blown to the surface of the carbon brush through the nozzle 7 to clean it, so that the carbon powder on the surface falls off, and part of it. The carbon powder falls onto the guide plate 14 and is gathered in the middle of the guide plate 14 through the structure of the guide plate 14. Then the dust pump 16 extracts the scattered carbon powder above the guide plate 14 through the exhaust pipe 15, and transports the carbon powder to the collection box 17 for unified recovery. When the carbon brush is cleaned with high-pressure gas, the protective brush 10 can block the outside of the empty slot 9 to prevent the carbon powder from escaping from the cleaning box 1, and the limit plate 3 can limit the two sides of the carbon brush to prevent the carbon brush from shaking during high-pressure cleaning of the carbon powder. At the same time, the electrostatic adsorption net 404 adsorbs part of the scattered carbon powder, thereby preventing the carbon powder from entering the nozzle 7 and clogging it, thereby ensuring smooth gas blowing and reducing the cleaning effect. After use, the electrostatic adsorption net 404 is powered off, and the adsorbed carbon powder falls due to gravity and continues to be extracted and collected by the dust pump 16.

[0033] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A carbon brush cleaning device for hydropower generation, characterized in that: The cleaning box (1) comprises a cleaning box (1), wherein a guide plate (14) is fixedly arranged in the cleaning box (1), the upper part of the guide plate (14) is a cleaning area, and the lower part is a collecting area, the cleaning area is provided with two limit plates (3) which can be slidably adjusted relative to each other, a protective mechanism (4) is provided below the limit plates (3), a guide pipe (2) is provided on one side of the protective mechanism (4), the guide pipe (2) is mounted on the inner wall of the cleaning box (1), a plurality of nozzles (7) are provided on one side of the guide pipe (2), and the nozzles (7) are directly facing the protective mechanism (4); Linear guide rails (11) are installed through both sides of the top of the cleaning box (1), and a sliding electric clamp (13) is provided on the linear guide rails (11). The electric clamp (13) is arranged to slide between two limit plates (3), and the electric clamp (13) is used to clamp the carbon brush and enter the cleaning box (1).

2. A carbon brush cleaning device for hydropower generation according to claim 1, characterized in that: Empty grooves (9) are provided on both sides of the top of the cleaning box (1), both ends of the linear guide rail (11) extend out of the empty grooves (9), and protective brushes (10) are fixedly provided on both sides of the empty grooves (9).

3. A carbon brush cleaning device for hydropower generation according to claim 1, characterized in that: An adjusting screw (5) is provided between the middle of the limiting plate (3) and the cleaning box (1); one end of the adjusting screw (5) rests on the limiting plate (3) for rotation, and the other end is connected to the cleaning box (1) via a threaded sleeve.

4. A carbon brush cleaning device for hydropower generation according to claim 3, characterized in that: Guide rods (6) are provided on both sides of the adjusting screw rod (5); one end of the guide rod (6) is fixed on the limit plate (3), and the other end of the guide rod (6) slides against the cleaning box (1).

5. The carbon brush cleaning device for hydropower generation according to claim 1, characterized in that: The electrostatic adsorption net (404) in the protection mechanism (4) is fixed on the limit plate (3), and slide grooves (403) are provided on both sides of the electrostatic adsorption net (404). The slide grooves (403) are fixed in the cleaning box (1). A connecting rod (401) is provided between the electrostatic adsorption net (404) and the slide grooves (403). One end of the connecting rod (401) is fixed on the limit plate (3), and the other end slides in the slide groove (403) by means of a sliding seat (402).

6. A carbon brush cleaning device for hydropower generation according to claim 5, characterized in that: The electrostatic adsorption net (404) is arranged obliquely, and the electrostatic adsorption nets (404) on both sides of the inside of the cleaning box (1) are arranged obliquely in a V shape.

7. The carbon brush cleaning device for hydropower generation according to claim 1, characterized in that: A connecting pipe (8) is provided on the outside of the cleaning box (1), the connecting pipe (8) is in communication with the flow guide pipe (2), and the flow guide pipes (2) on both sides of the inside of the cleaning box (1) are arranged in an inclined cross manner.

8. The carbon brush cleaning device for hydropower generation according to claim 1, characterized in that: A dust suction pump (16) and a collection box (17) are provided in the collection area; an air inlet of the dust suction pump (16) is connected to the guide plate (14) via an air suction pipe (15), and an air outlet is connected to the collection box (17).

Images