CN217935383U - Brush holder of alternating-current generator - Google Patents

Abstract

The utility model discloses an alternator brush yoke relates to generator brush yoke field, including the arc, the arc back is provided with the installation cavity, and sliding connection has two to run through to the positive carbon brush head of arc in the installation cavity, carbon brush head tail end all is provided with the insulation board, and the insulation board back connection have with installation cavity sliding connection's insulating tube, the insulation board back is located the insulating outside of tubes and is connected with the spring of being connected with the installation cavity. According to the invention, the roller is rotatably connected to the arc-shaped plate, the fan blades are rotatably connected to the back of the arc-shaped plate, the rotor drives the roller to rotate, so that the fan blades are driven to rotate through the first gear and the second gear which are meshed with each other, air is extracted and blown to the position where the rotor is contacted with the carbon brush head through the air pipe and the spray head, then, debris generated by the friction of the carbon brush head on the rotor can be blown off, the debris is prevented from being adhered to the rotor to accelerate the abrasion of the carbon brush head, and meanwhile, the temperature of the rotor can be reduced.

Description

Brush holder of alternating-current generator

Technical Field

The utility model relates to a generator brush yoke field specifically is an alternator brush yoke.

Background

The electric energy is one of the most important energy sources in modern society, the generator is mechanical equipment for converting other forms of energy sources into electric energy, the generator is driven by a water turbine, a steam turbine, a diesel engine or other power machines, the energy generated by water flow, air flow, fuel combustion or nuclear fission is converted into mechanical energy to be transmitted to the generator, and then the mechanical energy is converted into the electric energy by the generator, and the generator has wide application in industrial and agricultural production, national defense, science and technology and daily life.

The existing brush holder for the alternating current generator generally leads out current emitted by a rotor by pushing a carbon brush block to be attached to a rotor rotating shaft through a spring.

However, the carbon brush head needs to be in contact with the rotor rotating at a high speed for a long time and rub against the rotor, so that the carbon brush head is inevitably worn, carbon particles generated by abrasion of the carbon brush head are adhered to the rotor, the contact area between the carbon brush head and the rotor can be reduced, the abrasion speed of the carbon brush head can be increased, a large amount of heat can be generated at the friction position of the rotor and the carbon brush head, the potential hazard of contact possibly exists between a spring pushing the rotor and a wire, and unnecessary loss of current is caused.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing an alternator brush yoke to solve the carbon granule adhesion that the carbon brush head wearing and tearing of brush yoke for current alternator produced and can reduce the area of contact of carbon brush head and rotor on the rotor, and can increase the wearing and tearing speed of carbon brush head, and rotor and carbon brush head friction department can produce a large amount of heats, and the electric current probably produces the technical problem of unnecessary loss.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an alternator brush yoke, includes the arc, the arc back is provided with the installation cavity, and sliding connection has two to run through to the positive carbon brush head of arc in the installation cavity, carbon brush head tail end all is provided with the insulation board, and insulation board back connection have with installation cavity sliding connection's insulating tube, the insulation board back is located the insulating tube and is connected with the spring of being connected with the installation cavity, and carbon brush head tail end is connected with and runs through the insulation board and be located the conductive post of insulating tube, it all rotates to be connected with the roller all to lie in the installation cavity both sides on the arc, and a roller one end is connected with first gear, the arc back rotates and is connected with the second gear with first gear engagement, and the arc back is provided with second gear complex trachea, second gear top surface be connected with trachea complex flabellum, and the trachea exit end is provided with a plurality of positive shower nozzles that are located the arc.

Through adopting above-mentioned technical scheme, the carbon brush head can derive the electric current on the rotor with the rotor contact, insulation board and insulating tube all can prevent spring and carbon brush head or lead electrical pillar contact, the spring can promote carbon brush head and rotor shaft contact all the time, it is conductive that the carbon brush head of being convenient for is led electrical pillar is electrically conductive, roller and rotor cooperation, accessible intermeshing's first gear and second gear drive the flabellum rotation, the extraction air blows to the rotor through trachea and shower nozzle, blow off the carbon powder that the carbon brush head wearing and tearing produced, and cool down to the rotor.

The utility model discloses further set up to, carbon brush head openly is provided with the arc concave surface.

By adopting the technical scheme, the arc concave surface on the front side of the carbon brush head can increase the contact area between the carbon brush head and the rotor, reduce the resistance and achieve better electric conduction.

The utility model discloses further set up to, it has the elasticity wire to lead electrical pillar trailing end connection, and the elasticity wire all is connected with the current conducting plate that is located the inside tail end of installation cavity.

Through adopting above-mentioned technical scheme, the elastic wire can be convenient for the current conducting plate adapts to the conductive post that removes, and the current conducting plate is convenient for be connected with external wire.

The utility model discloses further set up as, the diameter of first gear is less than the diameter of roller.

Through adopting above-mentioned technical scheme, the diameter of first gear is less than the diameter of roller, can prevent that first gear from contacting rotor shaft, causes the damage to it.

The utility model discloses further set up as, the shower nozzle is the inline of slope.

By adopting the technical scheme, the spray heads are arranged in an inclined straight line, so that the carbon powder can be blown off from top to bottom conveniently.

The utility model discloses it further sets up to, the outer parcel of elasticity wire has the insulating skin of layer.

Through adopting above-mentioned technical scheme, the insulating skin of the outer parcel of elastic conductor can prevent two elastic conductors mutual contact interference.

The utility model discloses it further sets up to, roller outer wall parcel has one deck rubber.

By adopting the technical scheme, the rubber can increase the friction between the roller and the rotor and does not damage the rotor.

To sum up, the utility model discloses mainly have following beneficial effect:

1. the utility model discloses a rotate on the arc and be connected with the roller, and the arc back rotates and is connected with the flabellum, and the rotor rotates through driving the roller to drive the flabellum through intermeshing's first gear and second gear and rotate, extract the air and blow to the position that rotor and carbon brush head contact through trachea and shower nozzle, can blow off the piece that carbon brush head friction rotor produced, prevent that the piece from adhering to accelerate the wearing and tearing of carbon brush head on the rotor, can cool down for the rotor simultaneously;

2. the utility model discloses a pass through the insulation board at carbon brush head tail end and connect the insulated column, the electrically conductive post that leads of usefulness of parcel, and with the spring setting outside the insulated column, can prevent spring and conductive parts contact, the electric current that prevents the generator and send produces the unnecessary loss.

Drawings

Fig. 1 is a schematic structural view of a first viewing angle of the present invention;

fig. 2 is a schematic structural view of a second viewing angle of the present invention;

fig. 3 is a partial cross-sectional view of the present invention;

FIG. 4 is a front cross-sectional view of the present invention;

fig. 5 is an enlarged view of a in fig. 3 according to the present invention.

In the figure: 1. an arc-shaped plate; 2. a mounting cavity; 3. a carbon brush head; 4. an insulating plate; 5. a spring; 6. an insulating tube; 7. a conductive post; 8. an elastic wire; 9. a conductive plate; 10. a roller; 11. a first gear; 12. a second gear; 13. an air pipe; 14. a fan blade; 15. and (4) a spray head.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

The following describes an embodiment of the present invention according to its overall structure.

An AC generator brush holder, as shown in FIG. 1-5, comprises an arc plate 1, a mounting cavity 2 is arranged on the back of the arc plate 1, two carbon brush heads 3 penetrating to the front of the arc plate 1 are connected in the mounting cavity 2 in a sliding manner and can contact with a rotor to lead out current on the rotor, the tail ends of the carbon brush heads 3 are all provided with an insulating plate 4, the back of the insulating plate 4 is connected with an insulating tube 6 connected with the mounting cavity 2 in a sliding manner, the insulating plate 4 and the insulating tube 6 can prevent the spring 5 from contacting with the carbon brush heads 3 or a conductive column 7, the back of the insulating plate 4 is arranged outside the insulating tube 6 and is connected with the spring 5 connected with the mounting cavity 2, the carbon brush heads 3 can be pushed to contact with a rotor rotating shaft all the time, and the tail end of the carbon brush heads 3 is connected with the conductive column 7 penetrating through the insulating plate 4 and arranged in the insulating tube 6, be convenient for carbon brush head 3 electrically conducts, it is connected with roller 10 all to rotate in 2 both sides of installation cavity on the arc 1, and a roller 10 one end is connected with first gear 11, 1 back of arc rotates and is connected with second gear 12 with first gear 11 meshing, and 1 back of arc is provided with trachea 13 with 12 complex of second gear, 12 top surfaces of second gear are connected with flabellum 14 with trachea 13 complex, and 13 exit end of trachea is provided with a plurality of shower nozzles 15 that are located 1 positive of arc, roller 10 and rotor cooperation, accessible intermeshing's first gear 11 drives flabellum 14 rotatory with second gear 12, the extraction air blows to the rotor through trachea 13 and shower nozzle 15, blow off the carbon dust that 3 wearing and tearing of carbon brush head produced, and cool down the rotor.

Referring to fig. 1, the front surface of the carbon brush head 3 is provided with an arc concave surface, which can increase the contact area between the carbon brush head 3 and the rotor, reduce the resistance, and achieve better electrical conductivity.

Referring to fig. 4, the tail end of the conductive column 7 is connected with an elastic conductive wire 8, so that the conductive plate 9 can adapt to the movable conductive column 7, the elastic conductive wires 8 are connected with the conductive plate 9 at the tail end inside the installation cavity 2, so that the conductive plate can be connected with external conductive wires, and the elastic conductive wires 8 are wrapped with an insulating layer, so that the two elastic conductive wires 8 can be prevented from mutual contact and interference.

Referring to fig. 5, the diameter of the first gear 11 is smaller than that of the roller 10, so as to prevent the first gear 11 from contacting the rotor shaft and causing damage to the rotor shaft, and the outer wall of the roller 10 is wrapped with a layer of rubber, so as to increase the friction between the roller 10 and the rotor without damaging the rotor.

Referring to fig. 1 and 4, the nozzles 15 are arranged in an inclined straight line to facilitate blowing off the carbon powder from top to bottom.

The utility model discloses a theory of operation does: when the device is used, the device is installed in a generator, the roller 10 is attached to a rotor rotating shaft, meanwhile, the spring 5 can push the carbon brush head 3 to contact with the rotor through the insulating plate 4, an external conducting wire is connected with the conducting plate 9, when the generator works, the rotor rotates, the roller 10 can be driven to rotate through friction, the roller 10 rotates through the first gear 11 and the second gear 12 which are meshed with each other to drive the fan blades 14 to rotate, the fan blades 14 rotate to draw air to blow to the rotor rotating shaft through the air pipe 13 and the spray head 15, carbon particles generated by abrasion of the carbon brush head 3 are blown off, meanwhile, the rotor is cooled, current generated by the rotor can be transmitted to the external conducting wire through the carbon brush head 3, the conducting posts 7, the elastic conducting wires 8 and the conducting plate 9, and the insulating pipe 6 and the insulating plate 4 can prevent the spring 5 from contacting with the conducting posts 7 or the carbon brush head 3.

Although embodiments of the present invention have been shown and described, it is intended that the present embodiments be illustrative only and not limiting to the invention, and that the particular features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples, and that modifications, substitutions, variations, and the like, which are not inventive in light of the above teachings, may be made to the embodiments by those skilled in the art without departing from the principles and spirit of the present invention, but are to be construed as broadly as the following claims.

Claims (7)

1. An alternator brush holder comprising an arc (1), characterized in that: arc (1) back is provided with installation cavity (2), and sliding connection has two to run through to the positive carbon brush head (3) of arc (1) in installation cavity (2), carbon brush head (3) tail end all is provided with insulation board (4), and insulation board (4) back connection have with installation cavity (2) sliding connection's insulating tube (6), insulation board (4) back is located insulating tube (6) outer joint and has spring (5) of being connected with installation cavity (2), and carbon brush head (3) end connection has and runs through insulation board (4) and be located conductive pillar (7) of insulating tube (6), it all rotates on installation cavity (2) both sides and is connected with roller (10) to lie in arc (1), and a roller (10) one end is connected with first gear (11), arc (1) back rotates and is connected with second gear (12) with first gear (11) meshing, and arc (1) back is provided with trachea (13) complex trachea (12), second gear (12) top surface and trachea (13) complex exit end (14) are provided with a plurality of trachea (13), and trachea (15) exit end are located.

2. An alternator brush holder according to claim 1, wherein: the front surface of the carbon brush head (3) is provided with an arc concave surface.

3. An alternator brush holder according to claim 1, wherein: lead electrical pillar (7) tail end and be connected with elasticity wire (8), and elasticity wire (8) all are connected with current conducting plate (9) that are located the inside tail end of installation cavity (2).

4. An alternator brush holder according to claim 1, wherein: the diameter of the first gear (11) is smaller than that of the roller (10).

5. An alternator brush holder according to claim 1, wherein: the spray heads (15) are arranged in an inclined straight line.

6. An alternator brush holder according to claim 3, wherein: the elastic lead (8) is wrapped by a layer of insulating skin.

7. An alternator brush holder according to claim 1, wherein: the outer wall of the roller (10) is wrapped with a layer of rubber.

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