CN202586035U - Carbon brush used for electric drill - Google Patents
Carbon brush used for electric drill Download PDFInfo
- Publication number
- CN202586035U CN202586035U CN 201220218042 CN201220218042U CN202586035U CN 202586035 U CN202586035 U CN 202586035U CN 201220218042 CN201220218042 CN 201220218042 CN 201220218042 U CN201220218042 U CN 201220218042U CN 202586035 U CN202586035 U CN 202586035U
- Authority
- CN
- China
- Prior art keywords
- carbon brush
- electric drill
- spring
- brush holder
- connecting spring
- 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 discloses a carbon brush used for an electric drill. The carbon brush comprises a carbon brush base, a cylindrical boss on the carbon brush base and a connecting spring. One end of the connecting spring wraps the cylindrical boss on the carbon brush base and contacts with the carbon brush base. The connecting spring can compensate abrasion loss of a contact surface of the carbon brush, and transfers a part of heat to enable the heat of the carbon brush base to be diffused in time, thereby prolonging a service life, and at the same time the connecting spring can conduct current.
Description
Technical field
The utility model relates to a kind of carbon brush, in particular for the carbon brush of electric drill.
Background technology
Electric drill is the device that transmits energy or signal between standing part and the rotating part of motor or generator or other rotating machineries with carbon brush, and it generally is that pure carbon adds coagulating agent and processes, and external form generally is a square; Be stuck on the metallic support, have lead to draw on the top, in running up; The carbon brush conduction current, because and CONTACT WITH FRICTION between the rotor of carbon brush holder and electric drill, make the surface that abrasion take place and also produce hot; Heat can't in time shed, and shorten useful life.In addition, the carbon brush majority also comprises draws lead, carbon brush head, and this has not only increased the weight of carbon brush, and has increased manufacturing cost.
The utility model content
The technical problem that the utility model will solve provides a kind of electric drill that can increase the service life and uses carbon brush.
For addressing the above problem, the utility model comprise carbon brush holder, carbon brush holder top cylindrical boss, connect spring, connect the cylindrical boss on the end parcel carbon brush holder of spring and contact with carbon brush holder.
Adopt said structure, connect spring, connect the spring handle carbon brush and be pressed in the rotating shaft as an elastic force apparatus; Promoting carbon brush moves and keeps this carbon brush to contact with the close of electric drill rotor; Prevent the change of carbon brush position, connect the abrasion that spring can compensate the contact surface of carbon brush in addition, transmit a part of heat; The heat of carbon brush holder is in time distributed, increase the service life.In addition, connect spring also as conductive component, conduction current.
Description of drawings
Accompanying drawing 1 is the front view of the utility model.
Accompanying drawing 2 is left views of the utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is further specified.
This electric drill is used carbon brush, comprise carbon brush holder 1, carbon brush holder 1 top cylindrical boss 2, connect spring 3, connect the cylindrical boss 2 on the end parcel carbon brush holder 1 of spring 3 and contact with carbon brush holder 1.The high 3mm of cylindrical boss on the carbon brush holder, carbon brush holder 1 high 14mm connects spring as an elastic force apparatus; Connect the spring handle carbon brush and be pressed in the rotating shaft, promoting carbon brush and moving and keep this carbon brush to contact, prevent the change of carbon brush position with the close of this rotor; Connect the abrasion that spring can compensate the contact surface of carbon brush in addition; Transmit a part of heat, the heat of carbon brush holder is in time distributed, increase the service life.In addition, connect spring also as conductive component, conduction current.
Claims (1)
1. an electric drill is used carbon brush; It is characterized in that: comprise carbon brush holder (1), carbon brush holder (1) top cylindrical boss (2), connect spring (3), connect the cylindrical boss (2) on the end parcel carbon brush holder (1) of spring (3) and contact with carbon brush holder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220218042 CN202586035U (en) | 2012-05-16 | 2012-05-16 | Carbon brush used for electric drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220218042 CN202586035U (en) | 2012-05-16 | 2012-05-16 | Carbon brush used for electric drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202586035U true CN202586035U (en) | 2012-12-05 |
Family
ID=47255406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220218042 Expired - Fee Related CN202586035U (en) | 2012-05-16 | 2012-05-16 | Carbon brush used for electric drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202586035U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427289A (en) * | 2012-05-16 | 2013-12-04 | 海门市海菱碳业有限公司 | Carbon brush used for electric drill |
-
2012
- 2012-05-16 CN CN 201220218042 patent/CN202586035U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427289A (en) * | 2012-05-16 | 2013-12-04 | 海门市海菱碳业有限公司 | Carbon brush used for electric drill |
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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: 20121205 Termination date: 20130516 |