CN203367714U

CN203367714U - Electric brush device

Info

Publication number: CN203367714U
Application number: CN 201320497027
Authority: CN
Inventors: 肖青青
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-15
Filing date: 2013-08-15
Publication date: 2013-12-25
Anticipated expiration: 2023-08-15

Abstract

The utility model relates to an electric brush device which is composed of a brush sleeve, a brush carbon rod assembly and a spring. The brush carbon rod assembly is composed of a carbon rod and a positioning cylinder. One end of the carbon rod is provided with a hole and the positioning cylinder runs through the hole. The two ends of the positioning cylinder are exposed out of the carbon rod. The direction of the positioning cylinder is perpendicular to the long shaft direction of the carbon rod. The brush sleeve is provided with a carbon rod groove and a positioning cylinder groove. The carbon rod groove runs through the brush sleeve. The carbon rod moves along the carbon rod groove. The positioning cylinder moves along the positioning cylinder groove. The length of the carbon rod groove is larger than that of the positioning cylinder groove. The spring is connected with the carbon rod and is close to the positioning cylinder. The spring pushes the carbon rod to move along the carbon rod groove. The beneficial effects of the electric brush device are that: the positioning cylinder is utilized, so that the positioning cylinder is not completely worn with the limitation of the positioning cylinder groove, and the spring is prevented from contacting directly with the rotation components.

Description

A kind of brushgear

Technical field

The utility model relates to technical field of motors, relates to or rather a kind of brushgear.

Background technology

Brush is the vitals that in motor, conduction connects electric machine rotation parts and electrode, also the loss parts, the place that the brush carbon-point contacts with rotatable parts constantly is subject to the friction of rotatable parts, and the brush carbon-point weares and teares gradually, and the brush carbon-point weares and teares totally under the promotion of spring, be exactly finally that spring directly contacts with rotatable parts, because the spring material is wire, under the parts traction of rotating, the winding of spring and rotatable parts easily occurs, rub the spark, cause accident.

As can be seen here, still there is defect in above-mentioned existing brushgear, and is urgently improved.

Summary of the invention

Technical problem underlying to be solved in the utility model is, overcomes the defect that existing brushgear exists, and a kind of brushgear is provided.

The utility model solves its technical problem underlying and realizes by the following technical solutions.According to a kind of brushgear the utility model proposes, by the brush cover, brush carbon rod assembly and spring form, the brush carbon rod assembly is comprised of carbon-point and location cylinder, one end of carbon-point has hole, in this hole, there is the location cylinder to run through, carbon-point is exposed respectively at the two ends of location cylinder, the direction of location cylinder and the long axis direction of carbon-point are vertical, the brush cover has carbon-point groove and location cylinder groove, the carbon-point groove runs through the brush cover, carbon-point moves along the carbon-point groove, the location cylinder moves along location cylinder groove, the length of carbon-point groove is greater than the length of location cylinder groove, spring connects carbon-point close location cylinder, spring promotes carbon-point and moves along the carbon-point groove.

Brushgear described in the utility model, the beneficial effect of its generation is: adopt the location cylinder can make carbon-point can not wear and tear fully under the restriction of location cylinder groove, and then avoided spring and the direct of rotatable parts to contact.

The accompanying drawing explanation

The cross section structure schematic diagram that Fig. 1 is embodiment of the present utility model.

Description of reference numerals: 1, brush cover; 2, spring; 3, carbon-point; 4, location cylinder; 5, carbon-point groove; 6, location cylinder groove; 7, rotatable parts.

Embodiment

Below in conjunction with accompanying drawing and preferred embodiment, its embodiment, structure, feature and effect thereof to according to the utility model proposes, be described in detail as follows.

Refer to shown in Fig. 1, a kind of brushgear of the present utility model, by brush cover 1, brush carbon-point 3 assemblies and spring 2 form, brush carbon-point 3 assemblies are comprised of carbon-point 3 and location cylinder 4, one end of carbon-point 3 has hole, in this hole, there is location cylinder 4 to run through, carbon-point 3 is exposed respectively at the two ends of location cylinder 4, the direction of location cylinder 4 is vertical with the long axis direction of carbon-point 3, brush cover 1 has carbon-point groove 5 and location cylinder groove 6, carbon-point groove 5 runs through brush cover 1, carbon-point 3 moves along carbon-point groove 5, location cylinder 4 moves along location cylinder groove 6, the length of carbon-point groove 5 is greater than the length of location cylinder groove 6, spring 2 connects carbon-point 3 close location cylinder 4, spring 2 promotes carbon-point 3 and moves along carbon-point groove 5, employing location cylinder 4 can be so that carbon-point 3 can not wear and tear fully under the restriction of location cylinder groove 6, and then avoided spring 2 to contact with the direct of rotatable parts 7.

The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.

Claims

1. a brushgear, it is characterized in that: described brushgear is by the brush cover, brush carbon rod assembly and spring form, described brush carbon rod assembly is comprised of carbon-point and location cylinder, one end of described carbon-point has hole, in this hole, there is the location cylinder to run through, carbon-point is exposed respectively at the two ends of location cylinder, the direction of location cylinder and the long axis direction of carbon-point are vertical, described brush cover has carbon-point groove and location cylinder groove, described carbon-point groove runs through the brush cover, described carbon-point moves along the carbon-point groove, described location cylinder moves along location cylinder groove, the length of described carbon-point groove is greater than the length of location cylinder groove, described spring connects carbon-point close location cylinder, spring promotes carbon-point and moves along the carbon-point groove.