CN210490032U

CN210490032U - Carbon brush of electric tool

Info

Publication number: CN210490032U
Application number: CN201921674550.6U
Authority: CN
Inventors: 周兵
Original assignee: JIANGSU HUAYU CARBON CO LTD
Current assignee: JIANGSU HUAYU CARBON CO LTD
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-05-08
Anticipated expiration: 2029-10-09

Abstract

The utility model discloses an electric tool carbon brush, including U-shaped connecting piece and carbon brush, be provided with the carbon brush in the U-shaped connecting piece, be provided with the barrel in the U-shaped connecting piece, and the carbon brush alternates with one side of barrel and is connected, and the fixed spring that is equipped with of one end in the U-shaped connecting piece, the one end of spring and the middle part fixed connection of barrel opposite side, the spout has all been seted up to U-shaped connecting piece top and bottom, is located to be provided with the stop gear who is used for fixed carbon brush between U-shaped connecting piece top and the. The utility model discloses a stop gear can be so that the carbon brush fixes in the barrel, and the change of the carbon brush of also being convenient for simultaneously can be so that the carbon brush sticiss on the commutator through U-shaped connecting piece and spring, under stop gear's effect, can carry on spacingly to the spring, has avoided carbon brush wearing and tearing to make spring and commutator contact, has prevented that the motor from damaging, has improved the practicality.

Description

Carbon brush of electric tool

Technical Field

The utility model relates to a carbon brush specifically is an electric tool carbon brush.

Background

Carbon brushes, also called brushes, are widely used as a sliding contact in many electrical devices. The carbon brush mainly comprises graphite, impregnated graphite and metal (copper and silver) graphite in product application. Carbon brushes are devices that transmit power or signals between a stationary and a rotating part of an electric motor or generator or other rotating machinery.

At present, the carbon brush is pressed tightly on the commutator through the spring, because the carbon brush can produce the loss in the use, makes the carbon brush grind easily, and then makes spring and commutator contact to lead to the motor to damage, and current carbon brush is not convenient for change, and the practicality is lower. Therefore, the carbon brush of the electric tool is improved.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to an electric tool carbon brush, including U-shaped connecting piece and carbon brush, be provided with the carbon brush in the U-shaped connecting piece, be provided with the barrel in the U-shaped connecting piece, and the carbon brush alternates with one side of barrel and be connected, the fixed spring that is equipped with of one end in the U-shaped connecting piece, the one end of spring and the middle part fixed connection of barrel opposite side, the spout has all been seted up to U-shaped connecting piece top and bottom, is located be provided with the stop gear who is used for fixed carbon brush between U-shaped connecting piece top and the bottom spout.

As a preferred technical scheme of the utility model, stop gear includes the U-shaped locating part, the U-shaped locating part sets up on the U-shaped connecting piece, and the U-shaped connecting piece is located the U-shaped locating part.

As a preferred technical scheme of the utility model, threaded connection is advanced at the both ends of U-shaped locating part has the bolt, the one end of bolt penetrates in the spout and the fixed spacing dish that is equipped with, the fluting has all been seted up to the top and the bottom of barrel.

As an optimal technical scheme of the utility model, the spout communicates with each other through the inside of fluting with the barrel, spacing dish penetrates in the fluting, and spacing dish contacts with the carbon brush.

As an optimal technical scheme of the utility model, the through wires hole that is used for interlude carbon brush wire is all offered at the top of U-shaped connecting piece one side and the middle part of barrel opposite side.

The utility model has the advantages that: this kind of electric tool carbon brush through stop gear, can be so that the carbon brush fixes in the barrel, and the change of the carbon brush of also being convenient for simultaneously can be so that the carbon brush sticiss on the commutator through U-shaped connecting piece and spring, under stop gear's effect, can carry on spacingly to the spring, has avoided carbon brush wearing and tearing to make spring and commutator contact, has prevented the motor from damaging, has improved the practicality.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic sectional view of a carbon brush of an electric tool according to the present invention;

fig. 2 is a schematic sectional view of a part of a limiting mechanism of a carbon brush of an electric tool according to the present invention;

fig. 3 is a schematic side view of a carbon brush of an electric tool according to the present invention.

In the figure: 1. a U-shaped connector; 2. a carbon brush; 3. a barrel; 4. a spring; 5. a limiting mechanism; 501. a U-shaped limiting part; 502. a bolt; 503. a limiting disc; 6. and (6) threading holes.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1, fig. 2 and fig. 3, the utility model relates to an electric tool carbon brush, including U-shaped connecting piece 1 and carbon brush 2, be provided with carbon brush 2 in the U-shaped connecting piece 1, be provided with barrel 3 in the U-shaped connecting piece 1, and carbon brush 2 alternates with one side of barrel 3 and is connected, the fixed spring 4 that is equipped with of one end in the U-shaped connecting piece 1, the middle part fixed connection of the one end of spring 4 and barrel 3 opposite side, the spout has all been seted up to 1 top of U-shaped connecting piece and bottom, be located and be provided with stop gear 5 that is used for fixed carbon brush 2 between 1 top of U-shaped.

The limiting mechanism 5 comprises a U-shaped limiting piece 501, the U-shaped limiting piece 501 is arranged on the U-shaped connecting piece 1, and the U-shaped connecting piece 1 is positioned in the U-shaped limiting piece 501; two ends of the U-shaped limiting piece 501 are connected with bolts 502 in a threaded manner, one end of each bolt 502 penetrates into the sliding groove and is fixedly provided with a limiting disc 503, and the top end and the bottom end of the barrel 3 are both provided with grooves; the chute communicates with each other through the inside of fluting with barrel 3, spacing dish 503 penetrates in the fluting, and spacing dish 503 contacts with carbon brush 2, insert carbon brush 2 in barrel 3, aim at the fluting with spacing dish 503 on the U-shaped locating part 501, twist bolt 502, make spacing dish 503 rotate along with the rotation of bolt 502, spacing dish 503 moves down when rotating, and then spacing dish 503 contacts with carbon brush 2, thereby fix carbon brush 2 in barrel 3, through this kind of mode, can make carbon brush 2 fix in barrel 3, the change of carbon brush 2 of also being convenient for simultaneously.

Wherein, the top of one side of the U-shaped connecting piece 1 and the middle part of the other side of the cylinder 3 are both provided with threading holes 6 for inserting the wires of the carbon brush 2.

During operation, insert carbon brush 2 in barrel 3, aim at the fluting with spacing dish 503 on the U-shaped locating part 501, twist bolt 502, make spacing dish 503 rotate along with the rotation of bolt 502, spacing dish 503 moves down when rotating, and then spacing dish 503 contacts with carbon brush 2, thereby fix carbon brush 2 in barrel 3, through this kind of mode, can make carbon brush 2 fix in barrel 3, the change of carbon brush 2 of also being convenient for simultaneously, through U-shaped connecting piece 1 and spring 4, can make carbon brush 2 sticis on the commutator, under stop gear 5's effect, can carry on spacingly to spring 4, avoided carbon brush 2 wearing and tearing to make spring 4 contact with the commutator, prevent the motor damage, the practicality has been improved.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an electric tool carbon brush, includes U-shaped connecting piece (1) and carbon brush (2), its characterized in that, be provided with carbon brush (2) in U-shaped connecting piece (1), be provided with barrel (3) in U-shaped connecting piece (1), and carbon brush (2) alternate with one side of barrel (3) and be connected, the fixed spring (4) that is equipped with of one end in U-shaped connecting piece (1), the middle part fixed connection of the one end of spring (4) and barrel (3) opposite side, the spout has all been seted up to U-shaped connecting piece (1) top and bottom, is located be provided with stop gear (5) that are used for fixed carbon brush (2) between U-shaped connecting piece (1) top and the bottom spout.

2. The carbon brush of the electric tool as claimed in claim 1, wherein the limiting mechanism (5) comprises a U-shaped limiting member (501), the U-shaped limiting member (501) is disposed on the U-shaped connecting member (1), and the U-shaped connecting member (1) is located in the U-shaped limiting member (501).

3. The carbon brush of the electric tool as claimed in claim 2, wherein bolts (502) are connected to two ends of the U-shaped limiting member (501) in a threaded manner, one end of each bolt (502) penetrates into the corresponding sliding groove and is fixedly provided with a limiting disc (503), and the top end and the bottom end of the cylinder (3) are provided with grooves.

4. The carbon brush of the electric tool as claimed in claim 3, wherein the sliding groove communicates with the inside of the cylindrical body (3) through a slot, the limiting plate (503) penetrates into the slot, and the limiting plate (503) contacts with the carbon brush (2).

5. The carbon brush of the electric tool as claimed in claim 1, wherein a threading hole (6) for inserting a wire of the carbon brush (2) is formed at a top of one side of the U-shaped connector (1) and a middle of the other side of the cylindrical body (3).