CN216290453U

CN216290453U - Protection structure for electric brush of stepping motor

Info

Publication number: CN216290453U
Application number: CN202122804432.6U
Authority: CN
Inventors: 黄河
Original assignee: Shenzhen Moduo Motor Co ltd
Current assignee: Shenzhen Moduo Motor Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-04-12
Anticipated expiration: 2031-11-16

Abstract

The utility model provides a brush protection structure of a stepping motor, which relates to the technical field of brush protection and comprises a brush holder, wherein a plurality of elastic protection mechanisms are fixedly arranged on two sides of the outer surface of the brush holder, each elastic protection mechanism comprises an elastic copper sheet, two ends of each elastic copper sheet are fixedly arranged on one side surface of the brush holder, a brush body is movably arranged in the brush holder, a rear end cover is arranged at one end of the brush body, a U-shaped protective cover is fixedly arranged on one side surface of the rear end cover, and a limit block is fixedly arranged in one end of the brush holder, which is far away from the U-shaped protective cover. Can effectually prevent that the brush body from breaking, increase the life of motor.

Description

Protection structure for electric brush of stepping motor

Technical Field

The utility model relates to the technical field of electric brush protection, in particular to an electric brush protection structure of a stepping motor.

Background

The brush is a conductive component which is in sliding contact with a moving part to form electric connection, and is used on a commutator or a slip ring as a sliding contact body for leading in and leading out current, such as a copper brush wire with the application number of CN202021351910.1, a base and a fixed seat, wherein the fixed seat is symmetrically and fixedly installed on one side of the base, the fixed seat is rotatably connected with a limiting mechanism through a rotating shaft, the outer side of the limiting mechanism is meshed with a connecting seat, one end of the base and one end of the connecting seat are fixedly provided with a wire connecting mechanism with good protection performance, two sides of the connecting seat are fixedly provided with fixed mechanisms with stable installation, the limiting mechanism comprises limiting plates, thread strips and limiting blocks, two limiting plates are rotatably connected on the fixed seat through the rotating shaft, the tops of the limiting plates are fixedly provided with thread strips, and one end of the bottoms of the limiting plates are fixedly provided with limiting blocks, this copper brush line simple structure, simple operation, can be swift carry out fixed mounting to the pencil, can carry out fixed mounting with equipment simultaneously, the practicality is higher.

However, according to the technical scheme, the electric brush can shake violently due to the fact that the high-speed motor shakes violently when being used, the internal electric brush shakes along with the high-speed motor, the electric brush breaks when shaking for a long time, and the service life of the motor is seriously affected, so that the electric brush protection structure of the stepping motor is improved.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a stepping motor brush protection structure which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a step motor brush protection architecture, includes the brush yoke, the surface both sides fixed mounting of brush yoke has a plurality of elasticity protection machanism, elasticity protection machanism includes the elasticity copper sheet, the both ends fixed mounting of elasticity copper sheet is at a side surface of brush yoke, the inside movable mounting of brush yoke has the brush body, the one end rear end cap of brush body, one side fixed surface of rear end cap installs U-shaped visor, the inside fixed mounting of one end that the U-shaped visor was kept away from to the brush yoke has the stopper.

Preferably, a buffer spring is fixedly installed inside the elastic copper sheet, and one end of the buffer spring is fixedly installed on one side surface of the brush holder.

Preferably, one end of the brush body movably penetrates through one end of the brush holder, and the other end of the brush body is fixedly provided with the protruding block.

Preferably, a spring is mounted on the surface of one side of the protruding block, one end of the spring is fixedly mounted on the surface of one side of the partition plate, the partition plate is fixedly mounted at one end, close to the rear end cover, inside the electric brush frame, and a threading hole is fixedly mounted on the surface of one side of the partition plate.

Preferably, two limiting plates are fixedly mounted on the surface of one side of the rear end cover, the limiting plates are clamped inside the end, away from the limiting blocks, of the brush holder, and a conducting plate is fixedly mounted between the two limiting plates.

Preferably, an electric brush lead is fixedly mounted inside the protruding block, one end of the electric brush lead is fixedly mounted at one end of the electric brush body, and the other end of the electric brush lead movably penetrates through the threading hole and is fixedly mounted on the surface of one side of the conductive plate together with the limiting plate.

Preferably, the threading hole is trumpet-shaped, a conducting strip is fixedly installed on the surface of one side, far away from the brush lead, of the conducting strip, and one end of the conducting strip penetrates through the rear end cover and is fixedly installed inside the U-shaped protective cover.

Compared with the prior art, the utility model has the following beneficial effects:

(1) according to the utility model, the electric brush body is arranged in the motor, then when the motor is started, the shaking generated by the motor can be transmitted to the elastic protection mechanism, the elastic copper sheet in the elastic protection mechanism can counteract the shaking force, so that the shaking force can not be transmitted to the electric brush body, the buffering spring can further eliminate the shaking force, the electric brush body can be effectively prevented from being broken, and the service life of the motor is prolonged.

(2) According to the utility model, the electric brush lead arranged at one end of the electric brush body penetrates through the threading hole to be connected to the conducting plate, the threading hole is trumpet-shaped, so that the electric brush can be quickly threaded during threading, and the electric brush body can be pushed outwards by the spring to be close to the inside of the motor.

Drawings

Fig. 1 is a schematic structural diagram of the whole front side of a brush protection structure of a stepping motor according to the present invention;

FIG. 2 is a schematic structural view of the back side of a brush protection structure for a stepping motor according to the present invention;

FIG. 3 is a schematic side view of a brush protection structure for a stepping motor according to the present invention;

fig. 4 is a schematic structural diagram of a section a-a in fig. 3 of a brush protection structure of a stepping motor according to the present invention.

In the figure: 1. an elastic protection mechanism; 101. an elastic copper sheet; 102. a buffer spring; 2. an electric brush body; 3. a U-shaped protective cover; 4. an electric brush holder; 5. a rear end cap; 6. a conductive sheet; 7. a limiting plate; 8. a partition plate; 9. a limiting block; 10. a conductive plate; 11. a brush lead; 12. threading holes; 13. a spring; 14. and (6) a protruding block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.

Examples

As shown in fig. 1-4, a step motor brush protection structure, includes brush carrier 4, a plurality of elasticity protection mechanism 1 is fixedly installed to the surface both sides of brush carrier 4, elasticity protection mechanism 1 includes elasticity copper sheet 101, the both ends fixed mounting of elasticity copper sheet 101 is on a side surface of brush carrier 4, the inside movable mounting of brush carrier 4 has brush body 2, the one end rear end cap 5 of brush body 2, one side fixed surface of rear end cap 5 installs U-shaped visor 3, the inside fixed mounting of one end that U-shaped visor 3 was kept away from to brush carrier 4 has stopper 9.

It can be understood that, in this application, the inside fixed mounting of elasticity copper sheet 101 has buffer spring 102, one end fixed mounting of buffer spring 102 can offset the shake power through elasticity copper sheet 101 at a side surface of brush frame 4, makes it can not conduct to brush body 2 on, and buffer spring 102 can be further eliminate the shake power, can effectually prevent that brush body 2 from appearing the fracture, has increased the life of motor.

It can be understood that, in the present application, one end of the brush body 2 movably passes through one end of the brush holder 4, and the other end of the brush body 2 is fixedly mounted with the protruding block 14, so that the brush body 2 inside can be protected from being damaged by the brush holder 4.

It can be understood that, in this application, one side surface mounting of protruding piece 14 has spring 13, one end fixed mounting of spring 13 is at a side surface of baffle 8, baffle 8 fixed mounting is at the inside one end that is close to rear end cap 5 of brush yoke 4, one side surface fixed mounting of baffle 8 has through wires hole 12, can outwards release brush body 2 through spring 13, makes it press close to inside the motor.

It can be understood that in this application, one side fixed surface of rear end housing 5 installs two limiting plates 7, limiting plate 7 chucking is inside brush yoke 4 keeps away from the one end of stopper 9, two fixed mounting has a current conducting plate 10 between the limiting plate 7, and one side fixed surface through rear end housing 5 installs that two limiting plates 7 can be inside brush yoke 4's one end when using chucking.

It can be understood that, in this application, the inside fixed mounting of protruding piece 14 has brush lead 11, the one end fixed mounting of brush lead 11 is in the one end of brush body 2, the other end activity of brush lead 11 passes through wires hole 12 and limiting plate 7 fixed mounting is in a side surface of current-conducting plate 10, can be with power transmission to brush body 2 on through current-conducting plate 10.

It can be understood that, in this application, threading hole 12 presents loudspeaker form, one side fixed surface of keeping away from brush lead wire 11 of conducting plate 10

installs conducting strip

6, 5 fixed mounting in the inside of U-shaped visor 3 of rear end cap are passed to the one end of conducting strip 6, present loudspeaker dress through threading hole 12, can carry out quick threading when carrying out the threading.

The working principle of the brush protection structure of the stepping motor is as follows:

during the use, at first install brush body 2 in the inside of motor, then when the starter motor, the shake that the motor self-generated produced can be conducted to elasticity protection machanism 1, and elasticity copper sheet 101 among the elasticity protection machanism 1 can offset the shake power, make it can not conduct to brush body 2 on, and buffer spring 102 can further eliminate the shake power, can effectually prevent that brush body 2 from appearing the fracture, the life of motor has been increased, brush lead 11 of 2 one end installations of brush body passes through threading hole 12 and connects on current conducting plate 10, and threading hole 12 presents loudspeaker dress, can carry out quick threading when carrying out the threading, and spring 13 can outwards push out brush body 2, make it press close to inside the motor.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a step motor brush protection architecture, includes brush yoke (4), its characterized in that: the utility model discloses a brush holder, including brush holder (4), the surface both sides fixed mounting of brush holder (4) has a plurality of elasticity protection machanism (1), elasticity protection machanism (1) is including elasticity copper sheet (101), the both ends fixed mounting of elasticity copper sheet (101) is on one side surface of brush holder (4), the inside movable mounting of brush holder (4) has brush body (2), the one end rear end cap (5) of brush body (2), one side fixed surface of rear end cap (5) installs U-shaped visor (3), the inside fixed mounting of one end of U-shaped visor (3) has stopper (9) is kept away from in brush holder (4).

2. A stepping motor brush protection structure according to claim 1, wherein: a buffer spring (102) is fixedly installed inside the elastic copper sheet (101), and one end of the buffer spring (102) is fixedly installed on the surface of one side of the electric brush frame (4).

3. A stepping motor brush protection structure according to claim 1, wherein: one end of the electric brush body (2) movably penetrates through one end of the electric brush frame (4), and the other end of the electric brush body (2) is fixedly provided with a protruding block (14).

4. A stepping motor brush protection structure according to claim 3, wherein: one side surface mounting of outstanding piece (14) has spring (13), the one end fixed mounting of spring (13) is on one side surface of baffle (8), baffle (8) fixed mounting is close to the one end of rear end cap (5) in brush carrier (4) inside, one side surface fixed mounting of baffle (8) has through wires hole (12).

5. A stepping motor brush protection structure according to claim 1, wherein: the surface of one side of rear end housing (5) is fixed and is installed two limiting plates (7), limiting plate (7) chucking is kept away from inside the one end of stopper (9) in brush carrier (4), two fixed mounting has a current conducting plate (10) between limiting plate (7).

6. A stepping motor brush protection structure according to claim 3, wherein: the inside fixed mounting of outstanding piece (14) has brush lead wire (11), the one end fixed mounting of brush lead wire (11) is in the one end of brush body (2), the other end activity of brush lead wire (11) is passed through wires hole (12) and limiting plate (7) fixed mounting and is in a side surface of current-conducting plate (10).

7. A stepping motor brush protection structure according to claim 6, wherein: threading hole (12) present loudspeaker form, one side fixed surface of keeping away from brush lead wire (11) of conductive plate (10) installs conducting strip (6), the one end of conducting strip (6) is passed rear end cap (5) fixed mounting and is in the inside of U-shaped visor (3).