CN215528143U - Wear-resisting electric brush of convenient change - Google Patents

Abstract

The utility model discloses a wear-resistant electric brush convenient to replace, which comprises a bottom plate, wherein a rotating shaft is rotatably and alternately arranged in the middle of the bottom plate, a reversing ring is fixedly sleeved in the middle of the rotating shaft, a protection assembly is arranged on the bottom plate and comprises a protection cover, the protection cover is placed at the top end of the bottom plate, two sliding rails are respectively and fixedly arranged at the bottom ends of two sides of the inner wall of the protection cover, electric brush assemblies are arranged on the two sliding rails and comprise two brush boxes, the bottom ends of the two brush boxes are respectively and slidably arranged on the two sliding rails through two sliding grooves, and two placing grooves are respectively formed in one side of each brush box, so that the wear-resistant electric brush convenient to replace has the beneficial effects that: can together take off the brush subassembly when pulling down the safety cover through the protection subassembly, extract the brush subassembly on the slide rail fast and overhaul the change, guarantee whole device normal operating through the brush subassembly, need not change whole brush subassembly when damaging the back and taking off the brush box simultaneously, save the cost of maintenance change.

Description

Wear-resisting electric brush of convenient change

Technical Field

The utility model relates to a wear-resistant electric brush, in particular to a wear-resistant electric brush convenient to replace, and belongs to the technical field of electric motor electric brushes.

Background

Brushes are an important component of electrical machines, responsible for conducting electrical current between rotating and stationary parts. Since it is made of graphite, it is also called carbon brush. The brush is usually mounted on a commutator or slip ring and is a sliding contact. It is required to have the characteristics of smoothness, wear resistance, good conductivity and the like. Depending on the application, they are either partly metallic parts or made entirely of metal. In practice, a slip ring is usually equipped with a minimum of two brushes to avoid a single brush from contacting poorly and becoming open circuit.

When the existing wear-resistant electric brush breaks down and needs to be overhauled and replaced, the electric brush is not convenient to disassemble and assemble, meanwhile, when the wear-resistant electric brush part is damaged, the whole wear-resistant electric brush needs to be replaced, and the cost of maintenance and replacement is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a wear-resistant electric brush convenient to replace, and aims to solve the problems that the electric brush is not convenient to detach and install and high in maintenance and replacement cost in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a wear-resistant electric brush convenient to replace, which comprises a bottom plate, wherein a rotating shaft is rotatably and alternately arranged in the middle of the bottom plate, a reversing ring is fixedly sleeved in the middle of the rotating shaft, a protection component is arranged on the bottom plate and comprises a protection cover, the protective cover is arranged at the top end of the bottom plate, two sliding rails are respectively and fixedly arranged at the bottom ends of the two sides of the inner wall of the protective cover, electric brush assemblies are arranged on the two sliding rails, the electric brush assembly comprises two brush boxes, wherein the bottom ends of the brush boxes are respectively arranged on two slide rails in a sliding mode through two sliding grooves, two placing grooves are respectively formed in one side of each brush box, two clamping plates are respectively and fixedly arranged on two side sides of the inner wall of each placing groove, two springs are respectively and fixedly arranged between the four clamping plates corresponding to each other, and two wear-resistant brush heads are respectively and fixedly arranged at one ends of the springs.

As a preferred technical scheme of the present invention, two fixing plates are respectively and fixedly installed at the bottom ends of the two sides of the protection cover, two fixing screws are respectively and threadedly and alternately installed on the two fixing plates, and the head ends of the two fixing screws respectively penetrate through the two sides of the bottom end of the bottom plate.

As a preferred technical scheme of the present invention, four fixing columns are respectively and fixedly installed on two side sides of the outer sides of the top ends of the two brush boxes, four rotating plates are respectively and rotatably installed on the four fixing columns, four clamping columns are respectively and fixedly installed on two side sides of the inner sides of the top ends of the two brush boxes, four clamping grooves are respectively formed in the four rotating plates, and the four clamping columns are respectively clamped and arranged inside the four clamping grooves.

As a preferred technical scheme of the utility model, two balls are respectively embedded in the inner sides of the two wear-resistant brush heads in a rolling manner and are respectively contacted with two sides of the reversing ring.

As a preferable technical scheme of the utility model, the middle part of the top end of the protective cover is provided with a through hole, and the top of the rotating shaft penetrates through the through hole.

As a preferable technical scheme of the utility model, the middle part of the top end of the protective cover is fixedly provided with an oil seal, and the top of the rotating shaft penetrates through the inner ring of the oil seal.

Compared with the prior art, the utility model has the beneficial effects that: according to the wear-resistant electric brush convenient to replace, the electric brush assembly is protected through the protective cover in the protective assembly, meanwhile, the electric brush assembly is arranged on the slide rail, the electric brush assembly can be taken down together when the protective cover is detached, and the electric brush assembly on the slide rail is rapidly extracted for maintenance and replacement; the spring through block between the cardboard among the brush subassembly is pressed wear-resisting brush head to the switching-over ring, guarantees that wear-resisting brush head contacts with the switching-over ring all the time, guarantees whole device normal operating, and spring and wear-resisting brush head all do not have the fixed connection position with the brush box simultaneously, need not change whole brush subassembly when taking off the brush box after wear-resisting brush head damages, saves the cost of maintenance change.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic top cross-sectional view of the present invention;

FIG. 4 is an enlarged view of the portion A of FIG. 3 according to the present invention.

In the figure: 1. a base plate; 2. a rotating shaft; 3. a commutation ring; 4. a protection component; 41. a protective cover; 42. a slide rail; 43. a fixing plate; 44. fixing the screw rod; 5. an electric brush assembly; 51. a brush box; 52. a chute; 53. a placement groove; 54. clamping a plate; 55. a spring; 56. a wear-resistant brush head; 6. fixing a column; 7. a rotating plate; 8. clamping the column; 9. a card slot; 10. a ball bearing; 11. a through hole; 12. and (7) oil sealing.

Detailed Description

The technical solutions 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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the utility model provides a wear-resistant electric brush convenient to replace, which comprises a bottom plate 1, a rotating shaft 2 is rotatably and alternately arranged in the middle of the bottom plate 1, a reversing ring 3 is fixedly sleeved in the middle of the rotating shaft 2, a protection assembly 4 is arranged on the bottom plate 1, the protection assembly 4 comprises a protection cover 41, the protection cover 41 is arranged at the top end of the bottom plate 1, two slide rails 42 are respectively and fixedly arranged at the bottom ends of two sides of the inner wall of the protection cover 41, an electric brush assembly 5 is arranged on the two slide rails 42, the electric brush assembly 5 comprises two brush boxes 51, the bottom ends of the two brush boxes 51 are respectively and slidably arranged on the two slide rails 42 through two slide grooves 52, two placing grooves 53 are respectively arranged at one side of the two brush boxes 51, four clamping plates 54 are respectively and fixedly arranged at two sides of the inner wall of the two placing grooves 53, two springs 55 are respectively and clamped between the four corresponding clamping plates 54, one end of two springs 55 is fixed mounting respectively has two wear-resisting brush head 56, play the guard action to brush subassembly 5 through the safety cover 41 in the protection component 4, brush subassembly 5 sets up on slide rail 42 simultaneously, can together take off brush subassembly 5 when pulling down safety cover 41, extract the brush subassembly 5 on the slide rail 42 fast and overhaul the change, spring 55 through the block between the cardboard 54 in the brush subassembly 5 presses wear-resisting brush head 56 to switching-over ring 3, guarantee wear-resisting brush head 56 and switching-over ring 3 contact all the time, guarantee whole device normal operating, spring 55 and wear-resisting brush head 56 all do not have the fixed connection position with brush box 51 simultaneously, need not change whole brush subassembly 5 when taking off brush box 51 after wear-resisting brush head 56 damages, save the cost of maintenance change.

Preferably, two fixing plates 43 are fixedly mounted at the bottom ends of the two sides of the protecting cover 41 respectively, two fixing screws 44 are threadedly inserted and mounted on the two fixing plates 43 respectively, the head ends of the two fixing screws 44 respectively penetrate through the two sides of the bottom end of the bottom plate 1, the protecting cover 41 can be fixedly connected with the bottom plate 1 through the fixing screws 44 on the fixing plates 43, four fixing columns 6 are fixedly mounted at the two sides of the outer side of the top ends of the two brush boxes 51 respectively, four rotating plates 7 are rotatably mounted on the four fixing columns 6 respectively, four clamping columns 8 are fixedly mounted at the two sides of the inner side of the top ends of the two brush boxes 51 respectively, four clamping grooves 9 are formed in the four rotating plates 7 respectively, the four clamping columns 8 are clamped and arranged in the four clamping grooves 9 respectively, and are clamped with the clamping grooves 9 on the rotating plates 7 through the clamping columns 8, so as to prevent the spring 55 and the wear-resistant brush head 56 from being separated from the clamping plate 54 when the rotating shaft 2 and the reversing ring 3 are rotated, the inboard of two wear-resisting brush heads 56 rolls respectively and inlays and be equipped with two balls 10, two balls 10 respectively with the both sides contact of switching-over ring 3, become rolling friction with sliding friction through ball 10, frictional force has been reduced when guaranteeing wear-resisting brush head 56 and the effective contact of switching-over ring 3, through-hole 11 has been seted up at the middle part on safety cover 41 top, through-hole 11 is run through at the top of pivot 2, run through-hole 11 and other machine part fixed connection through pivot 2, the machine part rotates when pivot 2 rotates, the middle part fixed mounting on safety cover 41 top has oil blanket 12, the inner circle of oil blanket 12 is run through at the top of pivot 2, it is inside to prevent through oil blanket 12 that the dust from getting into safety cover 41 between pivot 2 top and the through-hole 11.

When the wear-resistant electric brush convenient to replace is used, firstly, the protective cover 41 in the protective component 4 plays a role in protecting the electric brush component 5, meanwhile, the electric brush component 5 is arranged on the slide rail 42, the electric brush component 5 can be taken down together when the protective cover 41 is detached through the fixing screw 44 on the fixing plate 43, the electric brush component 5 on the slide rail 42 is rapidly taken out for maintenance and replacement, the wear-resistant brush head 56 is pressed to the reversing ring 3 through the spring 55 clamped between the clamping plates 54 in the electric brush component 5, the wear-resistant brush head 56 is ensured to be always contacted with the reversing ring 3, the normal operation of the whole device is ensured, the sliding friction is changed into the rolling friction through the balls 10, the friction force is reduced while the effective contact between the wear-resistant brush head 56 and the reversing ring 3 is ensured, meanwhile, the spring 55, the wear-resistant brush head 56 and the brush box 51 have no fixed connecting part, the whole electric brush component 5 does not need to be replaced when the brush box 51 is taken down after the wear-resistant brush head 56 is damaged, the cost of maintenance change is saved, and the last change is accomplished the back through calorie post 8 and the draw-in groove 9 block on the rotating plate 7, and spring 55 and wear-resisting brush head 56 deviate from the inside of standing groove 53 from cardboard 54 when preventing that pivot 2 and switching-over ring 3 from rotating.

In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The wear-resistant electric brush convenient to replace comprises a bottom plate (1) and is characterized in that a rotating shaft (2) is installed in a rotating and penetrating mode in the middle of the bottom plate (1), a reversing ring (3) is fixedly sleeved in the middle of the rotating shaft (2), a protection assembly (4) is arranged on the bottom plate (1), the protection assembly (4) comprises a protection cover (41), the protection cover (41) is placed at the top end of the bottom plate (1), two sliding rails (42) are fixedly installed at the bottom ends of two sides of the inner wall of the protection cover (41) respectively, electric brush assemblies (5) are arranged on the two sliding rails (42), each electric brush assembly (5) comprises two brush boxes (51), the bottom ends of the two brush boxes (51) are arranged on the two sliding rails (42) in a sliding mode through two sliding grooves (52), two placing grooves (53) are formed in one side of each brush box (51) respectively, two sides of the inner wall of each of the two placing grooves (53) are respectively and fixedly provided with four clamping plates (54), two springs (55) are respectively clamped between every two corresponding four clamping plates (54), and one ends of the two springs (55) are respectively and fixedly provided with two wear-resistant brush heads (56).

2. A wear-resistant brush as recited in claim 1 wherein said brush is adapted to be replaced by: the bottom of safety cover (41) both sides is fixed mounting two fixed plates (43) respectively, two on fixed plate (43) respectively the screw thread interlude install two clamping screw (44), two the head end of clamping screw (44) runs through the both sides of bottom plate (1) bottom respectively.

3. A wear-resistant brush as recited in claim 1 wherein said brush is adapted to be replaced by: two brush box (51) top outside both sides side fixed mounting respectively has four fixed columns (6), four rotate respectively on fixed column (6) and install four rotor plates (7), two brush box (51) top inboard both sides side fixed mounting respectively has four card post (8), four seted up four draw-in grooves (9) on rotor plate (7), four card post (8) block respectively sets up the inside at four draw-in grooves (9).

4. A wear-resistant brush as recited in claim 1 wherein said brush is adapted to be replaced by: two balls (10) are respectively embedded in the inner sides of the two wear-resistant brush heads (56) in a rolling manner, and the two balls (10) are respectively contacted with the two sides of the reversing ring (3).

5. A wear-resistant brush as recited in claim 1 wherein said brush is adapted to be replaced by: through-hole (11) have been seted up at the middle part on safety cover (41) top, through-hole (11) are run through at the top of pivot (2).

6. A wear-resistant brush as recited in claim 1 wherein said brush is adapted to be replaced by: the middle part of safety cover (41) top fixed mounting has oil blanket (12), the inner circle of oil blanket (12) is run through at the top of pivot (2).

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