CN103427284A

CN103427284A - Safety carbon brush for electric polisher

Info

Publication number: CN103427284A
Application number: CN2012101476478A
Authority: CN
Inventors: 沈菊芳
Original assignee: CHINA HAIMEN HAILING CARBON INDUSTRY CO LTD
Current assignee: CHINA HAIMEN HAILING CARBON INDUSTRY CO LTD
Priority date: 2012-05-14
Filing date: 2012-05-14
Publication date: 2013-12-04

Abstract

The invention discloses a safety carbon brush for an electric polisher. The safety carbon brush for the electric polisher comprises a carbon body, a connecting wire and an angle plug, a wire-embedding hole is formed in the carbon body, one end of the connecting wire stretches into the wire-embedding hole, a safety spring is also arranged in the wire-embedding hole, the safety spring is mounted below the connecting wire and is tightly connected with the connecting wire, the angle plug clamps the other end of the connecting wire through a wire-clamping head, the wire-clamping head is directly connected with an angle plug piece, and two wire-clamping pillars are arranged on the side, perpendicular to the wire-clamping head, of the angle plug piece. According to the safety carbon brush for the electric polisher, the angle plug replaces a traditional connector, the two wire-clamping pillars are arranged on the angle plug, and the wire-clamping pillars can firmly clamp a motor wire, and can fix the carbon brush and conduct electricity at the same time; a chamfer is arranged on the carbon body, the carbon body can be in good contact with a diverter, and therefore the performance of a motor is improved; the insulation spring is arranged below the connecting wire, when the carbon body is worn down to the position of the edge of the spring, the spring pops up to enable the carbon brush to be separated from the motor, the motor is stopped from running, and therefore the motor is prevented from being burnt down.

Description

The safe carbon brush of electric polisher

Technical field

The present invention relates to a kind of carbon brush, especially a kind of carbon brush for electric polisher.

Background technology

Carbon brush is the device of transferring energy or signal between the standing part of motor or generator or other rotating machineries and rotating part, in the time of electric machine rotation, electric energy is flowed to coil by phase changer.Carbon brush, as a kind of sliding contact part, is widely used in many electric equipments.Traditional carbon brush is generally that pure carbon adds coagulating agent and makes, and external form is generally square, and volume varies, and on top, has wire to draw, and wire is connected with joint.General wire is welded on joint, and the joint another side is fixed on the brush nest by spring, and the fixing pressure of spring is less, and electric polisher using time body tremor amplitude is very large, and joint is easy to from motor break away from, and affects machine operation; In the course of the work, the carbon of carbon brush cognition constantly is worn, and when the carbon body may wear to a certain degree, the wire that bury the inside can exposedly out directly contact with motor, causes burn-down of electric motor.

Summary of the invention

The technical problem to be solved in the present invention is to provide the safe carbon brush that a kind of applicable electric polisher is used.

For solving the problems of the technologies described above, the technical scheme that the present invention takes is: the safe carbon brush of a kind of electric polisher, comprise that carbon body, connection wire and angle are slotting, be provided with the hole of sunkening cord in the carbon body, connecting wire one end stretches in the hole of sunkening cord, sunken cord in hole and also have safety spring, safety spring is contained in the below that connects wire, with to be connected wire tightly connected, described angle is inserted and will be connected the wire other end by the clamp head and clamp, the clamp head directly is connected with the angle inserted sheet, one side the angle inserted sheet vertical with the clamp head be furnished with two clamp posts.

As further improved technical scheme of the present invention, described safety spring is insulated spring.

As further improved technical scheme of the present invention, described carbon body is cuboid.

As further improved technical scheme of the present invention, described connection wire is copper litz wire.

As further improved technical scheme of the present invention, it is brass that material therefor is inserted at described angle.

Angle is inserted and is replaced traditional joint for the present invention, plugs at angle two clamp posts are set, and the clamp post can firmly be clamped motor wire, plays the fixedly effect of carbon brush and conduction simultaneously; Also on the carbon body, be provided with chamfering, can allow the carbon body better contact with commutator, thereby improve motor performance; Be provided with insulated spring below connecting wire, when the carbon body may wear to the spring marginal position, spring ejects, and carbon brush and motor are broken away from, motor stalling, thus the protection motor is not burnt.

The accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Embodiment

Embodiment 1

Referring to Fig. 1, the safe carbon brush of this electric polisher, comprise carbon body 1, connect wire 2 and angle inserts 3, is provided with the hole 4 of sunkening cord in carbon body 1, connecting wire 2 one ends stretches in the hole 4 of sunkening cord, sunken cord in hole 4 and also have insulated spring 5, insulated spring 5 is contained in the below that connects wire 2, with to be connected wire 2 tightly connected, angle slotting 3 will connect wire 2 other ends by clamp head 31 and clamp, connecting wire 2 degree of depth of sunkening cord is 3.2mm, and extension elongation is 28mm, and sectional area is 0.5mm ², clamp head 31 directly is connected with angle inserted sheet 33, one side angle inserted sheet 33 vertical with clamp head 31 be furnished with two binding posts 32, on the carbon body, four long limits are respectively arranged with 4 chamferings, connect wire and adopt copper litz wire, angle is inserted as brass and makes.During use, the carbon body is fixed on carbon brush holder, and the wire that the slotting binding post in angle will be brushed in nest is clamped, and can play the fixedly effect of carbon brush and conduction simultaneously; Be provided with insulated spring below connecting wire, when the carbon body may wear to the spring marginal position, spring ejects, and carbon brush and motor are broken away from, motor stalling, thus the protection motor is not burnt.

Claims

1. the safe carbon brush of electric polisher, comprise carbon body (1), connect wire (2) and angle and insert (3), be provided with the hole of sunkening cord (4) in the carbon body, connecting wire (2) one ends stretches in the hole of sunkening cord (4), it is characterized in that: also have safety spring (5) in the hole of sunkening cord (4), safety spring (5) is contained in the below that connects wire (2), with being connected, wire (2) is tightly connected, angle slotting (3) will connect wire (2) other end by clamp head (31) and clamp, clamp head (31) directly is connected with angle inserted sheet (33), one side that angle inserted sheet (33) is vertical with clamp head (31) is furnished with two binding posts (32).

2. the safe carbon brush of electric polisher according to claim 1, it is characterized in that: described safety spring (5) is insulated spring.

3. the safe carbon brush of electric polisher according to claim 1, it is characterized in that: described carbon body (1) is cuboid.

4. the safe carbon brush of electric polisher according to claim 1, it is characterized in that: described connection wire (2) is copper litz wire.

5. the safe carbon brush of electric polisher according to claim 1 is characterized in that: it is brass that (3) material therefor is inserted at described angle.