CN201594684U - Springless carbon brush holder - Google Patents
Springless carbon brush holder Download PDFInfo
- Publication number
- CN201594684U CN201594684U CN2010200196283U CN201020019628U CN201594684U CN 201594684 U CN201594684 U CN 201594684U CN 2010200196283 U CN2010200196283 U CN 2010200196283U CN 201020019628 U CN201020019628 U CN 201020019628U CN 201594684 U CN201594684 U CN 201594684U
- Authority
- CN
- China
- Prior art keywords
- carbon brush
- magnets
- magnet
- copper sheathing
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model aims at providing a springless carbon brush holder. A fixed magnet and a moving magnet which have opposite poles are mounted on a carbon brush; an adjusting nut is mounted on the fixed magnet; a layer of copper sheathing is arranged around two magnets; a layer of shield sheathing is arranged around the copper sheathing; the utmost outer side of the shield sheathing is coated with a layer of casing; two extended lug bosses are arranged on two sides of each magnet respectively and slide in a slideway on the inner wall of the copper sheathing axially; and a carbon brush power cord at the tail of the carbon brush passes out of threading holes in the middle of two magnets and the adjusting nut. By using a principle that two like magnetic poles of the two magnets repel each other, the utility model automatically adjusts the axial displacement of the carbon brush; the carbon brush has less possibility of being damaged, so that the service life of a motor can be prolonged; and in addition, the utility model has the advantages of simple and compact structure and high work efficiency.
Description
Technical field
The utility model relates to the carbon brush holder that motor is used.
Background technology
As everyone knows, the carbon brush holder that motor is used is made up of the spring in brush holder, the brush holder, carbon brush, lead and binding post, and during use, carbon brush contacts with commutator under the effect of spring all the time, and power supply makes its rotation to rotor.Carbon brush is easy to wearing and tearing like this, and the pulling force of spring fails in time to adjust, and causes carbon brush and brush ring loose contact to occur, needs to change carbon brush and reconditioning brush ring, and influence is produced, and causes serious waste simultaneously.
Summary of the invention
The purpose of this utility model provides a kind of no spring carbon brush holder, and is simple in structure tight, prolonged the useful life of motor.
The technical solution of the utility model is: no spring carbon brush holder, it is characterized in that on carbon brush, being equipped with two opposite polarity fixed magnets and moving magnet, adjusting nut is installed on fixed magnet, one deck copper sheathing is arranged around two magnets, one housing is arranged around copper sheathing, outermost at housing is surrounded by one deck housing, respectively there is a boss that stretches out the both sides of two magnets, boss axially slides in the slideway of copper sheathing inwall, and the carbon brush power line of carbon brush afterbody spreads out of from the through wires hole in the middle of two magnet and the adjusting nut.
The principle of utilizing two magnet like poles to repel each other of the present utility model is regulated the axial displacement of carbon brush automatically, and carbon brush is not easy to damage, and has prolonged the useful life of motor, and is simple in structure tight, high efficiency.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is a vertical view of the present utility model.
Fig. 3 is a upward view of the present utility model.
Embodiment
As shown in Figure 1, two opposite polarity fixed magnets 6 and moving magnet 7 are installed on carbon brush 8, adjusting nut 3 is installed on fixed magnet 6, one deck copper sheathing 5 is arranged around two magnets, around copper sheathing 5, a housing 4 arranged, be surrounded by one deck housing 2 in the outermost of housing 4.This device is a principle of utilizing two magnet like poles to repel each other, automatically regulate the axial displacement of carbon brush 8, wherein adjusting nut 3 is the positions that are used for regulating fixed magnet 6, the particular location of moving magnet 7 be because of with object that carbon brush contacts between the variation of relative position change, wherein external object power that carbon brush 8 and moving magnet 7 are applied and the repulsion between fixed magnet 6 and the moving magnet 7 balance each other.
As shown in Figure 2, respectively there is a boss that stretches out 10 both sides of two magnets as sliding limit, location, and boss axially slides in the slideway of copper sheathing 5 inwalls, to guarantee that fixed magnet 6 and moving magnet 7 in the process of sliding, are unlikely to imbalance and run-off the straight.The outer wall of copper sheathing 5 studs with a housing 4, with the interference of shielding external magnetic field, inlays the effect that one deck iron plate is also played shielding simultaneously in adjusting nut 3.The carbon brush power line 1 of carbon brush afterbody spreads out of from the through wires hole in the middle of two magnet and the adjusting nut.Outermost is surrounded by one deck with the housing 2 that industrial nylon was injection molded into, and prevents the carbon brush holder electric leakage.
When the rotor ring on being placed in axle (or collector ring) 9 rotates, rotor can since the coaxiality error of axle make it in rotating process, produce to beat, carbon brush 8 will produce axis shift along with beating of rotor, but the repulsion between two magnet has guaranteed between the two closely contact all the time.
Claims (1)
1. there is not the spring carbon brush holder, it is characterized in that on carbon brush (8), being equipped with two opposite polarity fixed magnets (6) and moving magnet (7), adjusting nut (3) is installed on fixed magnet (6), one deck copper sheathing (5) is arranged around two magnets, one housing (4) is arranged around copper sheathing (5), outermost at housing (4) is surrounded by one deck housing (2), respectively there is a boss that stretches out (10) both sides of two magnets, boss axially slides in the slideway of copper sheathing (5) inwall, and the carbon brush power line (1) of carbon brush afterbody spreads out of from the through wires hole in the middle of two magnet and the adjusting nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200196283U CN201594684U (en) | 2010-01-14 | 2010-01-14 | Springless carbon brush holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200196283U CN201594684U (en) | 2010-01-14 | 2010-01-14 | Springless carbon brush holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201594684U true CN201594684U (en) | 2010-09-29 |
Family
ID=42776751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200196283U Expired - Fee Related CN201594684U (en) | 2010-01-14 | 2010-01-14 | Springless carbon brush holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201594684U (en) |
-
2010
- 2010-01-14 CN CN2010200196283U patent/CN201594684U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20140114 |