CN2765346Y - Rolling type electric brush - Google Patents
Rolling type electric brush Download PDFInfo
- Publication number
- CN2765346Y CN2765346Y CN 200420055914 CN200420055914U CN2765346Y CN 2765346 Y CN2765346 Y CN 2765346Y CN 200420055914 CN200420055914 CN 200420055914 CN 200420055914 U CN200420055914 U CN 200420055914U CN 2765346 Y CN2765346 Y CN 2765346Y
- Authority
- CN
- China
- Prior art keywords
- rolling
- roundlet
- inner ring
- outer ring
- rolling type
- 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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- Motor Or Generator Current Collectors (AREA)
Abstract
The utility model discloses a rolling type electric brush, the aim of which is to provide the rolling type electric brush with small friction with the contact face and small resistance coefficient. The utility model comprises an outer ring, a rolling small circle and an inner ring which are made of pure metal or alloy which is good in electrical conductivity, wherein the inner surface of the outer ring forms a rolling contact with the rolling small circle, the inner surface of the inner ring forms a rolling contact with the rolling small circle and other parts of the inner ring are connected with a supporting frame and a conducting wire. The utility model is suitable for surface rolling contact for current conduction of a commutator of a motor and a slip ring, and is also suitable for the surface rolling contact for current conduction of an electric car, an electric locomotive and an overhead transmission line.
Description
Technical field
The utility model relates to a kind of electrical component, and more particularly it relates to a kind of brush.
Background technology
Be used for the brush (also claiming slide plate, piece) that contacts with overhead transmission line on the brush that present known motor is used, electric car and electric locomotive, be electrical carbon product, they are updated in long-term use, have lot of advantages.But because their operating state is the sassafras that rubs that slides without exception, friction is bigger, loss power; Contact-making surface is easy to wear, and it is faster self to wear and tear, and often will change, and wastes time and energy; Simultaneously, it is unfavorable in safety easily to get spark in wear process, makes carbon dust fly upward contaminated environment again.Electric conducting material commonly used such as electrical carbon product and copper, aluminium is bigger than resistance coefficient.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art, provides a kind of very little with contact surface frictional force, the rolling type brush that resistance coefficient is also very little.
Rolling type brush of the present utility model, comprise the outer ring, rolling roundlet, inner ring all adopt good simple metal of conductivity or alloy to make described outer ring, the commutator of its outer surface and motor, the surface of slip ring or overhead transmission line roll and contact, in order to increase the area of contact-making surface, establish one deck elastic conducting layer again at the outer surface of outer ring, described elastic conducting layer adopts the dense arrangement filament, perhaps dense arrangement sheet metal, perhaps flexible material clamps wire, sheet.The inner surface of described outer ring rolls with the rolling roundlet and contacts, and described rolling roundlet adopts thin-walled pipeline section or ball, and perhaps cylinder preferably adopts the little pipeline section of thin-walled, and its easy deformation can increase the surface area that contacts with Internal and external cycle.
The outer surface of described inner ring rolls with the rolling roundlet and contacts, and position and power supply lead wire join in addition.
Described outer ring, inner ring and biend are equipped with baffle plate, block moving axially of rolling roundlet.
The beneficial effects of the utility model are: (1) changes into rolling friction to the friction between brush and commutator face, slip ring surface, the power transmission line surface, frictional force is reduced greatly, greatly reduced the abrasion of contact surface, increase the service life exponentially, the economical with materials loss also reduces the loss of power.(2) safe and reliable, nonsparking, do not have carbon dust and fly upward.(3) resistance coefficient of metal is little, and electrical conductance is improved.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing.
In the drawings, the rolling type brush mainly is made of outer ring 1, rolling roundlet 2, inner ring 3, supporting base 4, lead 5, outer baffle-plate 6, interior plate washer 7 etc.
The outer surface of described outer ring 1 is provided with elastic conducting layer, and present embodiment adopts flexible material to clamp wire, when it is subjected to suitable pressure, can have a lot of wires to be close to contact surface simultaneously, has enlarged conductive area.The inner surface of described outer ring 1 rolls with rolling roundlet 2 and contacts.Described rolling roundlet 2, present embodiment adopt the thin-walled tubule, because wall is thin, and easily deformation, when it is subjected to suitable pressure, can slight ovalization, the contact area of it and outer ring 1, inner ring 3 is increased, help conduction.The outer surface of described inner ring 3 rolls with rolling roundlet 2 and contacts, and the position also is connected with supporting base 4 leads 5 in addition.Plate washer 7 is used to stop moving axially of rolling roundlet 2 in the described outer baffle-plate 6.
Claims (4)
1. rolling type brush, comprise the outer ring, rolling roundlet and inner ring, it is characterized in that, all make with electric conductivity good simple metal or alloy, the inner surface of outer ring rolls with the rolling roundlet and contacts, and the outer surface of inner ring rolls with the rolling roundlet and contacts, and the position of other of inner ring connects bearing support and lead.
2. rolling type brush according to claim 1 is characterized in that the outer surface of described outer ring is provided with one deck elastic conducting layer.
3. rolling type brush according to claim 2 is characterized in that described elastic conducting layer is that intensive arrangement filament or intensive arrangement sheet metal or flexible material clamp wire, sheet.
4. rolling type brush according to claim 1 is characterized in that described rolling roundlet adopts ball or cylinder or thin-walled pipeline section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055914 CN2765346Y (en) | 2004-12-31 | 2004-12-31 | Rolling type electric brush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055914 CN2765346Y (en) | 2004-12-31 | 2004-12-31 | Rolling type electric brush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2765346Y true CN2765346Y (en) | 2006-03-15 |
Family
ID=36168260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420055914 Expired - Fee Related CN2765346Y (en) | 2004-12-31 | 2004-12-31 | Rolling type electric brush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2765346Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022143899A1 (en) * | 2020-12-31 | 2022-07-07 | 黄国灿 | Planetary gear type commutator |
-
2004
- 2004-12-31 CN CN 200420055914 patent/CN2765346Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022143899A1 (en) * | 2020-12-31 | 2022-07-07 | 黄国灿 | Planetary gear type commutator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |