Cleaning device for slip ring carbon brush

Abstract

The utility model relates to the technical field of carbon brush cleaning, in particular to a cleaning device for a slip ring carbon brush, which comprises a bottom plate, a collector ring rotatably connected to the top of the bottom plate, carbon brushes uniformly and detachably connected to the periphery of the collector ring, grips fixedly connected to the exteriors of the plurality of carbon brushes, and an outer housing detachably fixed to the top of the bottom plate, the outer housing is composed of a left housing body and a right housing body, and carbon brush holes and brush holder holes are evenly formed in the outer portion of the outer housing. The brush carriers are detachably mounted on the bottom plate, mounting shells are symmetrically and fixedly connected to the exteriors of the brush carriers, the mounting shells are used for mounting carbon brushes, a brush is fixedly connected to one brush carrier, and the brushes are close to and do not make contact with the collector ring. And the collector ring can be quickly disassembled, so that the collector ring can be conveniently maintained, and meanwhile, internal dust can be conveniently cleaned in a centralized manner, thereby being beneficial to improving the cleaning efficiency of the carbon brush device.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon brush cleaning, in particular to a cleaning device for slip ring carbon brushes. Background Art

[0002] In the existing life, the functions of the slip ring and carbon brush of the vertical water turbine generator are as follows: the electrical connection device between the moving and the static is the mechanical equipment that needs to rotate. To transmit current signals, it often passes through a central current collector. The inner circle of the central current collector is a copper slip ring, and the outer part is a brush holder equipped with carbon brushes. When rotating, the carbon brushes slide on the slip ring, which can ensure the transmission of signals and power. The generator slip ring belongs to the rotor, and the function of the carbon brush is to rub against the surface of the slip ring to play a role in conducting electricity. Carbon brushes are generally used for the slip rings and excitation devices of generators. The rotor of the generator needs to be connected to the external DC current. The rotor rotates, and the wire is static. The wire is connected to the slip ring, and the carbon brush connects the slip ring and the rotor, cleverly connecting the dynamic rotor and the static slip ring. During the installation and commissioning process of the unit, properly installing the slip ring carbon brush is an important link to ensure the stable operation of the unit.

[0003] Since the slip ring is always rotating at a high speed, and the carbon brush device is a static component, the high-speed rotating slip ring contacts the carbon brushes in the carbon brush device, and friction will inevitably occur between the two. This kind of friction will inevitably cause wear of the carbon brushes. The wear of the carbon brushes will form a large amount of fine carbon dust. The carbon dust fills the carbon brush chamber of the generator and rotates under the drive of the air flow. If these dusts are not removed, they will inevitably enter the interior of the generator as the unit rotates, further polluting the stator winding, excitation winding, etc., thus affecting the safe operation of the unit. In severe cases, it will also cause faults such as coil short circuits.

[0004] Therefore, we propose a cleaning device for slip ring carbon brushes. Content of the Utility Model

[0005] The purpose of the utility model is to provide a cleaning device for slip ring carbon brushes to solve the problem that carbon powder will be generated during the work of the existing carbon brushes, and the accumulation of carbon powder will affect the safety of the unit.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cleaning device for a slip ring carbon brush, comprising a bottom plate, a slip ring rotatably connected to the top of the bottom plate, carbon brushes detachably connected circumferentially and uniformly to the slip ring, grips fixedly connected to the outside of multiple carbon brushes, a housing detachably fixed to the top of the bottom plate, the housing consisting of a left housing and a right housing, carbon brush holes and brush holder holes uniformly formed in the outside of the housing; and a brush holder detachably installed on the bottom plate, mounting shells symmetrically and fixedly connected to the outside of multiple brush holders, multiple mounting shells for installing carbon brushes, a brush fixedly connected to one of the brush holders, multiple brushes approaching and not contacting the slip ring, baffles fixedly connected to the tops of multiple brush holders, multiple baffles corresponding to the brush holder holes; and a connection mechanism fixed to the housing, the connection mechanism for connecting the left housing and the right housing.

[0008] Preferably, the connection mechanism includes bumps, both bumps fixedly connected to the right housing, grooves formed in the inside of both bumps, compression springs fixedly connected to the inside of both grooves, connecting plates fixedly connected to the tops of both compression springs, and limit blocks fixedly connected to the outside of both connecting plates.

[0009] Preferably, clamping grooves are symmetrically formed in the inside of the left housing, both clamping grooves corresponding to the bumps, and fixing blocks slidably connected to the inside of both clamping grooves.

[0010] Preferably, connecting rods are fixedly connected to the tops of both fixing blocks, both connecting rods passing through the left housing and fixedly connected to buttons at the top, and return springs fixedly connected to the outside of both buttons.

[0011] Preferably, fixing plates are fixedly connected to the outside of both return springs, both fixing plates fixedly connected to the left housing, and sliding grooves symmetrically formed in the top of the left housing, the sliding grooves facilitating the movement of the connecting rods.

[0012] Preferably, carbon powder pipes are detachably connected to the outside of the housing symmetrically, and carbon powder collection units are fixedly connected to the other ends of both carbon powder pipes.

[0013] Preferably, an air pipe is detachably connected to the outside of the housing, a blower is fixedly connected to the other end of the air pipe, and both the carbon powder pipe and the air pipe communicate with the housing.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. In this solution, a connecting mechanism is provided. The convex block is clamped with the card slot, which facilitates the quick installation of the outer cover, so as to form a sealed space between the slip ring and the carbon brush. At the same time, it can be quickly disassembled, which is convenient for repairing the slip ring and cleaning the internal dust, thus helping to improve the cleaning efficiency of the carbon brush device.

[0016] 2. This solution is equipped with a brush. Through the rotation of the slip ring and the fixation of the brush, relative movement is formed, which is convenient for cleaning the carbon powder on the surface of the slip ring and collecting the carbon powder inside the sealed space, thus helping to keep the outside of the slip ring clean and tidy, and ensuring the normal operation of the unit.

[0017] 3. This solution is equipped with a fan and an air duct. Through the mutual cooperation of the fan and the air duct, the wind direction is the same as the rotation direction of the rotor, which can cool the rotor and clean the carbon powder at the internal dead ends. Cooperating with the carbon powder collection unit, it is convenient to achieve dead-end-free cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of a partial structure of the present utility model;

[0020] Figure 3 is a schematic diagram of the structure of the connecting mechanism of the present utility model;

[0021] Figure 4 is a partial schematic diagram of the connecting mechanism of the present utility model;

[0022] Figure 5 is a top view schematic diagram of a partial structure of the present utility model;

[0023] Figure 6 is a schematic diagram of the structure of the outer cover of the present utility model.

[0024] In the drawings, the list of components represented by each reference numeral is as follows: 1. bottom plate; 2. outer cover; 201. carbon brush hole; 202. brush holder hole; 203. left housing; 204. right housing; 3. slip ring; 4. brush holder; 5. mounting shell; 6. carbon brush; 7. grip; 8. connecting mechanism; 801. convex block; 802. groove; 803. compression spring; 804. connecting plate; 805. limit block; 806. card slot; 807. fixing block; 808. connecting rod; 809. button; 810. return spring; 811. fixing plate; 812. chute; 9. brush; 10. baffle; 11. carbon powder pipeline; 12. carbon powder collection unit; 13. air duct; 14. fan. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Embodiment 1: As Figure 1 - Figure 6 shown, a cleaning device for a slip ring carbon brush in the figure includes a bottom plate 1. A slip ring 3 is rotatably connected to the top of the bottom plate 1. Carbon brushes 6 are detachably connected to the circumference of the slip ring 3 at equal intervals. Grips 7 are fixedly connected to the outsides of the plurality of carbon brushes 6. The carbon brushes 6 are selected with appropriate carbon brush materials and structures to extend the service life of the carbon brushes 6. It also includes an outer cover 2 detachably fixed to the top of the bottom plate 1. The outer cover 2 is made of a transparent insulating material to facilitate observing the internal situation. The outer cover 2 is composed of a left housing 203 and a right housing 204. Carbon brush holes 201 and brush holder holes 202 are evenly formed in the outside of the outer cover 2. Sealing gaskets are provided inside the carbon brush holes 201 and the brush holder holes 202; and a brush holder 4 detachably installed on the bottom plate 1. Mounting shells 5 are symmetrically and fixedly connected to the outsides of the plurality of brush holders 4. The plurality of mounting shells 5 are all used for mounting the carbon brushes 6. A brush 9 is fixedly connected to one of the brush holders 4. The brush 9 is used for cleaning the surface of the slip ring 3. The plurality of brushes 9 are all close to and do not contact the slip ring 3. The slip ring 3 rotates while the brushes 9 are fixed, so as to achieve a self-cleaning effect. Baffles 10 are fixedly connected to the tops of the plurality of brush holders 4. The baffles 10 are used for closing the brush holder holes 202. The plurality of baffles 10 correspond to the brush holder holes 202; and a connecting mechanism 8 fixed to the outer cover 2. The connecting mechanism 8 is used for connecting the left housing 203 and the right housing 204. Through reasonable design, it is convenient to replace and maintain the carbon brushes 6, and reduce the equipment downtime.

[0027] Embodiment 2: As Figure 3 and Figure 4 shown, this is a further description of Embodiment 1. In this embodiment, the connecting mechanism 8 includes bump blocks 801. The two bump blocks 801 are both fixedly connected to the right housing 204. Grooves 802 are formed inside the two bump blocks 801. Compression springs 803 are fixedly connected to the inside of the two grooves 802. The tops of the two compression springs 803 are both fixedly connected to a connecting plate 804. The groove 802 is concave to limit the connecting plate 804 inside the groove 802. Limit blocks 805 are fixedly connected to the outsides of the two connecting plates 804. The limit blocks 805 are triangular, and the groove 802 can completely accommodate the limit blocks 805.

[0028] Furthermore, please refer to Figure 4, symmetric slots 806 are provided inside the left housing 203. Both of the two slots 806 correspond to the bumps 801. The limiting blocks 805 are snapped into the inside of the slots 806 in the natural state to install and connect the left housing 203 and the right housing 204. Fixed blocks 807 are slidably connected to the inside of both of the two slots 806. Connecting rods 808 are fixedly connected to the tops of the two fixed blocks 807. The tops of the two connecting rods 808 penetrate through the left housing 203 and are fixedly connected to buttons 809. Return springs 810 are fixedly connected to the exteriors of the two buttons 809. Fixing plates 811 are fixedly connected to the exteriors of the two return springs 810. Both of the two fixing plates 811 are fixedly connected to the left housing 203. Slots 812 are symmetrically provided at the top of the left housing 203. The slots 812 facilitate the movement of the connecting rods 808.

[0029] The principle of the quick installation and disassembly of the outer housing 2 here is as follows: During installation, directly snap the bumps 801 into the slots 806 to quickly install the outer housing 2, which can simplify the installation process and improve the installation efficiency. Furthermore, a closed space can be quickly formed without affecting the inspection and replacement of the carbon brush 6. When the slip ring needs to be repaired, just press the buttons 809 simultaneously. The buttons 809 squeeze the fixing plates 811 through the return springs 810, and then drive the fixed blocks 807 to move towards the limiting blocks 805 through the connecting rods 808, causing the limiting blocks 805 to squeeze the connecting plate 804 and the compression spring 803, thus facilitating the separation of the left housing 203 and the right housing 204, and then the outer housing 2 can be disassembled. The outer housing 2 can be quickly installed and disassembled, which is convenient for cleaning the slip ring 3 and the carbon brush 6, thus being beneficial to maintaining the safe operation of the unit.

[0030] Specifically, carbon powder pipes 11 are symmetrically and detachably connected to the exterior of the outer housing 2. The other ends of the two carbon powder pipes 11 are fixedly connected to a carbon powder collection unit 12. The carbon powder collection unit 12 is an existing dust suction device. The carbon powder pipes 11 facilitate the cleaning and centralized treatment of the carbon powder.

[0031] Furthermore, an air duct 13 is detachably connected to the exterior of the outer housing 2. The other end of the air duct 13 is fixedly connected to a fan 14. The carbon powder pipes 11 and the air duct 13 are both communicated with the outer housing 2. The fan 14 is an existing technology. The air direction of the air duct 13 is consistent with the rotation direction of the slip ring 3, thus facilitating the cleaning of the slip ring 3 without dead angles and improving the efficiency of the carbon powder collection unit 12 at the same time.

[0032] In summary, when using this device, first align the bump 801 with the card slot 806, and the limit block 805 catches the card slot 806, which facilitates the installation of the left housing 203 and the right housing 204, so that a closed space is formed inside the slip ring 3 and the carbon brush 6. When the slip ring 3 rotates, the brush 9 cleans the surface of the slip ring 3 and collects the carbon powder. At the same time, start the blower 14, and the blower 14 conveys the air through the air duct 13 into the interior of the outer housing 2. The direction of the air flow is the same as the rotation direction of the slip ring 3, which can cool the slip ring 3 and accelerate the discharge of the carbon powder. At the same time, start the carbon powder collection unit 12, and the carbon powder collection unit 12 collects the carbon powder through the carbon powder pipeline 11, thereby keeping the slip ring 3 and the carbon brush 6 clean and tidy. When it is necessary to check the carbon brush 6, directly pull the carbon brush 6 through the grip 7 from the outside. When it is necessary to repair the slip ring 3, just press the button 809 simultaneously. The extrusion button 809 squeezes the fixed plate 811 through the return spring 810, and then drives the fixed block 807 to move towards the limit block 805 through the connecting rod 808, so that the limit block 805 squeezes the connecting plate 804 and the compression spring 803, which facilitates the separation of the left housing 203 and the right housing 204, and then the outer housing 2 can be disassembled.

[0033] It can be understood that the present invention is described by some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A cleaning device for a slip ring carbon brush, comprising a bottom plate (1), a slip ring (3) is rotatably connected to the top of the bottom plate (1), carbon brushes (6) are detachably connected to the circumference of the slip ring (3) evenly, grips (7) are fixedly connected to the outside of multiple carbon brushes (6); It is characterized in that It further includes: An outer housing (2) detachably fixed to the top of the bottom plate (1), the outer housing (2) is composed of a left housing (203) and a right housing (204), carbon brush holes (201) and brush holder holes (202) are evenly opened on the outside of the outer housing (2); and, A brush holder (4) detachably installed on the bottom plate (1), mounting shells (5) are symmetrically and fixedly connected to the outside of multiple brush holders (4), multiple mounting shells (5) are all used for installing carbon brushes (6), a brush (9) is fixedly connected to one of the brush holders (4), multiple brushes (9) are all close to and not in contact with the slip ring (3), baffles (10) are fixedly connected to the tops of multiple brush holders (4), multiple baffles (10) are all corresponding to the brush holder holes (202); and, A connecting mechanism (8) fixed to the outer housing (2), the connecting mechanism (8) is used for connecting the left housing (203) and the right housing (204).

2. The cleaning device for a slip ring carbon brush according to claim 1, characterized in that: The connecting mechanism (8) includes bump (801), two bumps (801) are both fixedly connected to the right housing (204), grooves (802) are opened inside two bumps (801), compression springs (803) are fixedly connected to the inside of two grooves (802), connecting plates (804) are fixedly connected to the tops of two compression springs (803), limiting blocks (805) are fixedly connected to the outside of two connecting plates (804).

3. The cleaning device for a slip ring carbon brush according to claim 2, characterized in that: Card slots (806) are symmetrically opened inside the left housing (203), two card slots (806) are both corresponding to the bump (801), fixing blocks (807) are slidably connected to the inside of two card slots (806).

4. The cleaning device for a slip ring carbon brush according to claim 3, characterized in that: Connecting rods (808) are fixedly connected to the tops of two fixing blocks (807), the tops of two connecting rods (808) both penetrate through the left housing (203) and are fixedly connected with buttons (809), return springs (810) are fixedly connected to the outside of two buttons (809).

5. The cleaning device for a slip ring carbon brush according to claim 4, characterized in that: Fixing plates (811) are fixedly connected to the outside of two return springs (810), two fixing plates (811) are both fixedly connected to the left housing (203), sliding grooves (812) are symmetrically opened on the top of the left housing (203), and the sliding grooves (812) facilitate the movement of the connecting rods (808).

6. The cleaning device for a slip ring carbon brush according to claim 1, characterized in that: Carbon powder pipes (11) are symmetrically and detachably connected to the outside of the outer housing (2), and carbon powder collection units (12) are fixedly connected to the other ends of two carbon powder pipes (11).

7. The cleaning device for a slip ring carbon brush according to claim 6, characterized in that: An air duct (13) is detachably connected to the outside of the outer housing (2), a blower (14) is fixedly connected to the other end of the air duct (13), and the carbon powder pipes (11) and the air duct (13) are both communicated with the outer housing (2).

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