CN202586050U

CN202586050U - Carbon brush for combined angle grinder

Info

Publication number: CN202586050U
Application number: CN 201220224897
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: 2012-05-18
Filing date: 2012-05-18
Publication date: 2012-12-05
Anticipated expiration: 2022-05-18

Abstract

The utility model discloses a carbon brush for a combined angle grinder. The carbon brush comprises a body, lead wires and a contact pin, wherein the body is connected with the contact pin through the lead wires; the body is a combined body which is formed by mutually bonding, connecting and fixing two carbon bodies through a bonding layer; the two carbon bodies are symmetrical and propped-against, wherein an circular-arc slot is formed at the outer side of each carbon body, and the circular-arc slots are respectively and longitudinally arranged along the surfaces of the two carbon bodies; one end of each lead wire is directly inserted into the body; and one end of the contact pin, which is close to one end of the body, is provided with a wire chuck, and one end of each lead wire, which is away from the body, is clamped by the wire chuck. According to the carbon brush disclosed by the utility model, the lead wires are fixed on the contact pins through the wire chuck, so that the lead wires are not easy to fall off; and because the two carbon bodies are symmetrical and propped-against in the structure, the carbon brush is convenient to use and safe and reliable; and the circular-arc slots arranged at the outer sides of the carbon bodies can prevent abnormal abrasion of an electric brush under the overloaded state, so that steering stability of an engine is ensured, therefore the service life of the electric brush and the service life of the engine are prolonged and the maintenance cost is reduced.

Description

The combination electric angle grinder is used carbon brush

Technical field

The utility model relates to a kind of carbon brush, especially a kind of carbon brush that is used for electric angle grinder.

Background technology

Carbon brush is the device that transmits energy or signal between standing part and the rotating part of motor or generator or other rotating machineries, when motor rotates, electric energy is flowed to coil through phase changer.Traditional carbon brush generally is that pure carbon adds coagulating agent and processes, and lead is connected with joint.General lead is welded on the joint, and the joint another side then is fixed on the brush nest through spring, and the spring fixed pressure is less; Electric angle grinder using time body tremor amplitude is very big, and the lead of welding breaks away from from joint easily, influences machine operation; And when the motor operating load was bigger than normal, the actual load of brush increased, and causes the activity variation of brush in brush carrier easily; Cause motor commutation unstable; Even worsen and produce ring fire, burn brush and brush carrier, make the motor can't operate as normal.

The utility model content

The technical problem that the utility model will solve provides a kind of lead difficult drop-off, simple in structure, superior performance, can guarantee that the stable electric angle grinder of motor commutation uses carbon brush.

For solving the problems of the technologies described above, the technical scheme that the utility model is taked is: a kind of combination electric angle grinder is used carbon brush, comprises body, lead and contact pin; Body is connected with contact pin through lead, it is characterized in that: body is that two carbon bodies are bonding each other through adhesive layer, connection fixed combination body, and adhesive layer is the glue-line with self-insurance cleaning and adhesive function; Two carbon bodies symmetry and offseting; The outside of every carbon body also is provided with arc groove, and arc groove vertically is provided with along two carbon surfaces respectively, and lead one end directly inserts in the body; Contact pin is provided with the clamp head near an end of body, and the clamp head is clamped lead away from an end of body.

The utility model with clipper joint with lead fixed in contact pin, make the lead difficult drop-off, symmetry and two carbon body structures offseting; Esy to use, safe and reliable; Arc groove through being provided with in the external side of carbon can prevent that wear of brush is unusual under overload state, guarantee that motor commutation is stable; Thereby increased the useful life of brush and motor, reduced maintenance cost.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the upward view of the utility model.

Embodiment

Referring to accompanying drawing; This combination electric angle grinder is used carbon brush, comprises body 10, lead 4 and contact pin 3, body 10 be left carbon body 1 bonding each other with right carbon body 2 through adhesive layer 111, be connected the fixed combination body; The glue-line of adhesive layer 111 for having self-insurance cleaning and adhesive function; Left side carbon body 1 is with right carbon body 2 symmetries and offset, and left carbon body 1 outside is provided with arc groove 11, and right carbon body 2 outsides are provided with arc groove 22; Arc groove 11 and arc groove 22 left carbon body 1 in edge and right carbon body 2 surface longitudinal settings respectively; Lead 4 directly inserts in the body 10, is respectively arranged with clamp first 51 and clamp head 2 52 in contact pin 3 near an end of body 10, and clamp first 51 is clamped lead 4 with clamp head 2 52 away from an end of body 10.The utility model with clipper joint with lead fixed in contact pin, make the lead difficult drop-off, symmetry and two carbon body structures offseting; Esy to use, safe and reliable; Arc groove through being provided with in the external side of carbon can prevent that wear of brush is unusual under overload state, guarantee that motor commutation is stable; Thereby increased the useful life of brush and motor, reduced maintenance cost; Through the special glue of adhesive layer is set, not only can reduces the transverse current between the electrographite piece and increase longitudinal current, but also can clean the carbon dust of wearing and tearing and the dust of DC motor commutator face.

Claims

1. a combination electric angle grinder is used carbon brush; Comprise body (10), lead (4) and contact pin (3); Body (10) is connected with contact pin (3) through lead (4); It is characterized in that: body (10) be left carbon body (1) bonding each other with right carbon body (2) through adhesive layer (111), be connected fixed combination; A left side carbon body (1) and right carbon body (2) are symmetrical and offset; Left side carbon body (1) outside is provided with arc groove (11), and right carbon body (2) outside is provided with arc groove (22), and arc groove (11) and arc groove (22) are respectively along left carbon body (1) and right carbon body (2) surface longitudinal setting; Lead (4) directly inserts the inherent contact pin of body (10) (3) and is respectively arranged with clamp first (51) and clamp head two (52) near an end of body (10), and clamp first (51) and clamp head two (52) are clamped lead (4) away from an end of body (10).

2. combination electric angle grinder according to claim 1 is used carbon brush, it is characterized in that: the glue-line of described adhesive layer (111) for having self-insurance cleaning and adhesive function.