CN220896026U

CN220896026U - Carbon brush assembly

Info

Publication number: CN220896026U
Application number: CN202322242638.3U
Authority: CN
Inventors: 陈巨州
Original assignee: Zhejiang Yihuang Technology Co ltd
Current assignee: Zhejiang Yihuang Technology Co ltd
Priority date: 2023-08-18
Filing date: 2023-08-18
Publication date: 2024-05-03
Anticipated expiration: 2033-08-18

Abstract

The utility model discloses a carbon brush assembly, which is characterized by comprising a base, wherein a connecting frame is arranged on the base, carbon brushes are arranged on the connecting frame, fixed claws are arranged at two ends of the connecting frame, protruding columns with tooth structures are arranged on the fixed claws, at least one of the fixed claws at two ends is hinged with the connecting frame, a clamp is slidably arranged on the connecting frame, the clamp is in a locking state and an unlocking state, when the clamp slides to the locking state, the clamp is sleeved on the fixed claws at two ends, and when the clamp slides to the unlocking state, the clamp is sleeved on the connecting frame.

Description

Carbon brush assembly

Technical Field

The utility model relates to the technical field of motors, in particular to a carbon brush assembly.

Background

Carbon brushes, also called brushes, are widely used as sliding contact members in many electrical apparatuses, and are mainly made of graphite, impregnated graphite, metal graphite, and are devices for transmitting energy or signals between a fixed part and a rotating part of a motor or a generator or other rotary machines. For example, CN217216206U discloses a carbon brush holder convenient for replacing carbon brushes, the carbon brushes in this case are fixed by a screw rod, the screw rod is unscrewed by means of an external tool, then the carbon brushes are replaced, long-time work of the carbon brushes is easy to accumulate carbon powder, the carbon powder can be attached to a cross groove or a straight groove at the head of the screw rod, sliding easily occurs when the screw driver is used for rotating, the screw rod is difficult to detach, the detachment difficulty is increased, and the screw rod is inconvenient to detach.

Disclosure of utility model

Aiming at the defects in the prior art, the utility model provides a carbon brush assembly, which has the function of facilitating carbon brush replacement and improves the working efficiency.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a carbon brush subassembly, includes the base, be equipped with on the base and connect the frame, connect to be equipped with the carbon brush on the frame, its characterized in that: the clamping device comprises a frame, and is characterized in that fixed claws are arranged at two ends of the frame, protruding columns of tooth structures are arranged on the fixed claws, at least one of the fixed claws is hinged with the frame, a clamp is arranged on the frame in a sliding mode, the clamp has a locking state and an unlocking state, when the clamp slides to the locking state, the clamp is sleeved on the fixed claws at two ends, and when the clamp slides to the unlocking state, the clamp is sleeved on the frame.

The utility model is further provided with: the connecting frame is provided with a telescopic limiting rod, when the clamp slides to a locking state, the limiting rod is propped against the clamp, and when the clamp slides to an unlocking state, the clamp shields the limiting rod.

The utility model is further provided with: the base comprises a base plate and a base body, and the base plate and the base body are fixed through screws.

The utility model is further provided with: the bottom body of the base is provided with a clamping body which is used for limiting the bottom end position of the connecting frame.

The utility model is further provided with: the spring is arranged on the base, a protruding cylinder is arranged at the bottom end of the connecting frame, the spring is sleeved on the cylinder, one end of the spring is abutted to the bottom end of the connecting frame, and the other end of the spring is abutted to the base.

The utility model is further provided with: the card body is provided with a circuit board, the circuit board is provided with two conductive contacts, and the bottom end of the connector frame is provided with a conductive metal sheet.

In summary, the utility model has the following beneficial effects:

According to the utility model, the fixed claw is arranged on the connecting frame, the fixed claw is hinged with the connecting frame, the fixed claw is provided with the tooth-shaped convex columns, the convex columns are made of rubber made of silica gel, the grabbing effect of the fixed claw is improved, the connecting frame is provided with the clamp in a sliding manner, the clamp can be limited by the movement of the clamp, the connecting frame is provided with the limiting rod, the limiting rod limits the position of the clamp, when the carbon brush is disassembled, the limiting rod is pressed, the limiting rod is not limited by the clamp any more, the fixed claw is released to move downwards through the clamp, so that the fixed claw can move freely, the carbon brush is loosened by the fixed claw, and the carbon brush can be taken out easily; when the carbon brush is installed, the carbon brush is placed in the connecting frame, the clamp is moved to the fixing claw, the fixing claw can fix the carbon brush, meanwhile, the limiting rod can stretch out to limit the clamp, and the carbon brush is convenient to replace. Therefore, the utility model can be conveniently disassembled and assembled.

Drawings

FIG. 1 is a schematic perspective view of the present embodiment;

FIG. 2 is a schematic view showing the structure of the holding pawl in the released state of the present embodiment;

FIG. 3 is a schematic view showing the structure of the locking state of the fixing pawl of the present embodiment;

fig. 4 is a schematic view of the structure of the present embodiment at the time of installation.

Reference numerals: 1. a base; 2. a connecting frame; 3. a carbon brush; 4. a fixed claw; 5. a convex column; 6. hinged connection; 7. a clamp; 8. a limit rod; 9. a chassis; 10. a bottom body; 11. a card body; 12. a spring; 13. a cylinder; 14. a conductive contact; 15. a conductive metal sheet; 16. a strip-shaped friction part; 17. an indicator light; 18. a circuit board; 19. a small spring; 20. and (5) a screw.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

The embodiment discloses a carbon brush subassembly, as shown in fig. 1-4, including chassis 1, be equipped with on chassis 1 and connect frame 2, connect and be equipped with fixed claw 4 on the frame 2, fixed claw 4 articulates 6 and connects frame 2, fixed claw 4 can be in the range activity through articulated 6, connect and be equipped with clamp 7 and gag lever post 8 on the frame 2, when changing carbon brush 3, press gag lever post 8, make gag lever post 8 no longer carry out the spacing to clamp 7, slide clamp 7 downwards, clamp 7 no longer restricts fixed claw 4 activity, break off fixed claw 4, fixed claw 4 loosen worn carbon brush 3, worn carbon brush 3 can take out easily from connect frame 2, put new carbon brush 3 into connect in the frame again, close fixed claw 4, then slide clamp 7 upwards, clamp 7 overlaps again on fixed claw 4, fixed claw 4 range of motion is restricted, fixed claw 4 pastes tightly 3, at this moment gag lever post 8 stretches out automatically, stop clamp 7 gliding mode, can change carbon brush 3 fast, compared with prior art, this embodiment is not influenced by carbon brush 3 is dismantled.

Further, the base comprises a base body 10 and a base plate 9, the base plate 10 and the base plate 9 are assembled through screws 20, a spring 12 is arranged on the base plate, a cylinder 13 is arranged at the bottom of the connecting frame, the cylinder 13 is used for limiting the position of the spring 12, the spring 12 is limited by the cylinder 13 and cannot twist at will, the spring is sleeved on the cylinder 13, the position of the spring 12 can be limited, the connecting frame 2 cannot deviate when the spring 12 pushes the connecting frame 2, and the spring 12 abuts against the cylinder 13 and the base plate 9. The chassis 9 and the chassis 10 of the base are fixed through the screws 20, the installation is convenient, the springs 12 in the chassis 9 can be replaced through disassembly after being aged, the maintenance cost is reduced, and the service life is prolonged.

Further, the card body 11 is arranged on the bottom body, the circuit board 18 is arranged on the card body 11, the two conductive contacts 14 are arranged on the circuit board, the conductive metal sheet 15 is arranged at the bottom end of the connection frame, the carbon brush 3 is worn during friction, the spring pushes the connection frame 3 out, the bottom end of the connection frame 3 is in contact with the circuit board 18 on the card body 2, the conductive metal sheet 15 at the bottom end of the connection frame 2 is in contact with the two conductive contacts 14 on the circuit board 18, the connected indicator light is on 17, the carbon brush 3 is required to be replaced, most of the prior art needs to be periodically disassembled for replacement, or the carbon brush 3 is required to be replaced according to experience, and the maintenance is excessively complicated.

Further, when the rubber is adopted for the convex column 5 of the fixing claw 4 and the convex column 5 made of silica gel is tightly attached to the carbon brush 3, the contact area is large when the silica gel material is pressed on the carbon brush 3, so that the friction force of the fixing claw 4 on the carbon brush is increased, and the fixing claw 4 is not easy to slide off from the carbon brush.

Further, be equipped with little spring 19 in the gag lever post, drive gag lever post 8 flexible through little spring 19, from this, when clamp 7 slides to the locked state, little spring 19 supports gag lever post 8 from the inslot, and gag lever post 8 stretches out and limits clamp 7 activity, and when clamp 7 slides to the unblock state, gag lever post 8 presses the retraction inslot, no longer limits the activity to clamp 7, and clamp 7 can freely slide.

Further, the clip 7 is provided with a raised bar-shaped friction portion 16. The sliding clamp is used for increasing friction force during sliding, preventing fingers from sliding during sliding of the clamp 7, and is easier to operate during sliding of the clamp 7.

The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the design concept of the present utility model should be included in the scope of the present utility model.

Claims

1. The utility model provides a carbon brush subassembly, includes base (1), be equipped with on base (1) and connect frame (2), connect and be equipped with carbon brush (3), its characterized in that on frame (2): connect both ends of frame (2) to be equipped with stationary dog (4), be equipped with projection (5) of tooth structure on stationary dog (4), both ends stationary dog (4) and the frame (2) hinge connection (6) that connect that have at least one end in stationary dog (4), it is equipped with clamp (7) to connect to slide on frame (2), clamp (7) have locking state and unlocking state, when clamp (7) slip to locking state, clamp (7) cover is on stationary dog (4) at both ends, when clamp (7) slip to unlocking state, clamp (7) cover is on connecing frame (2).

2. The carbon brush assembly according to claim 1, wherein: the telescopic limiting rod (8) is arranged on the connecting frame (2), when the clamp (7) slides to a locking state, the limiting rod (8) abuts against the clamp (7), and when the clamp (7) slides to an unlocking state, the clamp (7) shields the limiting rod (8).

3. The carbon brush assembly according to claim 1, wherein: the base (1) comprises a chassis (9) and a chassis body (10), and the chassis (9) and the chassis body (10) are fixed through screws (20).

4. The carbon brush assembly according to claim 1, wherein: the base body (10) of the base (1) is provided with a clamping body (11), and the clamping body (11) is used for limiting the bottom end position of the connecting frame (2).

5. The carbon brush assembly according to claim 1, wherein the base (1) is provided with a spring (12), the bottom end of the connecting frame (2) is provided with a protruding cylinder (13), the spring (12) is sleeved on the cylinder (13), one end of the spring (12) is abutted against the bottom end of the connecting frame (2), and the other end of the spring (12) is abutted against the base (1).

6. The carbon brush assembly according to claim 4, wherein: the card body is provided with a circuit board (18), the circuit board (18) is provided with two conductive contacts (14), and the bottom end of the connector frame is provided with a conductive metal sheet (15).