CN203261171U - Generator - Google Patents
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- Publication number
- CN203261171U CN203261171U CN 201320245891 CN201320245891U CN203261171U CN 203261171 U CN203261171 U CN 203261171U CN 201320245891 CN201320245891 CN 201320245891 CN 201320245891 U CN201320245891 U CN 201320245891U CN 203261171 U CN203261171 U CN 203261171U
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- CN
- China
- Prior art keywords
- carbon brush
- brush
- stage clip
- carrier
- pressure 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 provides a generator comprising a brush holder and a carbon brush pressure spring being a constant pressure spring; and two pins of the constant pressure spring are inserted in the brush holder. The carbon brush pressure spring employs the constant pressure spring, so the carbon brush can receive uniform pressure from the pressure spring; the carbon brush and a rotor slip ring tightly contact, so no spark phenomenon is generated; and uniform current is distributed on each carbon brush, so carbon brush wear rate is low and service life is long.
Description
Technical field
The utility model relates to power domain, is specifically related to a kind of generator.
Background technology
Adopt arc contact surface between the rotor ring of generator and the carbon brush, carbon brush is inserted in the brush carrier, contacts with rotor ring maintenance face under the effect of stage clip, so that rotor can normally move.Existing carbon brush stage clip adopts old-fashioned not constant voltage stage clip, as shown in Figure 1, in the whole useful life of carbon brush, the stage clip pressure transient, have following shortcoming: the pressure of (1) carbon brush stage clip is adjusted unstable: because of the gear width of nick of carbon brush stage clip lack of standardization, and the fixed head of stage clip end has the arc camber, be not easy to stage clip is limited, the card jail, in generator operation, the carbon brush vibration-generating, can cause the gear of carbon brush stage clip to break away from, the pressure loss of the contact position of carbon brush and rotor ring makes other carbon brush get electric current and increases, the carbon brush heating, increase in temperature affects the safe operation of generator; (2) oxide-film on rotor ring surface be difficult for to form: because of the pressure imbalance of the suffered stage clip of carbon brush, so that loose contact between itself and the rotor ring, carbon brush abrasion is inhomogeneous, and carbon dust comes off seriously.When the carbon brush carbon dust came off, there were the voltage difference phenomenon in carbon brush and slip ring surface, made carbon brush and rotor ring surface produce spark, affected formation and the smooth surface situation of rotor ring surface film oxide.
So the pressure of rationally adjusting the carbon brush stage clip is very important, practice shows that the size of carbon brush stage clip pressure is considerable for the normal operation of safeguarding generator.During hypotony on putting on carbon brush, can not guarantee that carbon brush and rotor ring remain good contact, can cause that because of the increase of electrical loss carbon brush is overheated and because spark increases phenomenons such as causing the carbon brush burn, and then the wearing and tearing of carbon brush are increased; Be subject to the carbon brush than small pressure spring pressure, the contact resistance between carbon brush and the rotor ring is large, and the electric current that passes through is just few, and this will cause that the part carbon brush is overheated or produce spark, have a negative impact.If impose on the hypertonia on the carbon brush, carbon brush raises the temperature of carbon brush because the heat that mechanical wear produces will increase, and accelerates the wearing and tearing of carbon brush; Be subject to the carbon brush of larger stage clip pressure, the contact resistance between carbon brush and the rotor ring is little, and the electric current that passes through is just many.Thereby the pressure stresses that is added on the carbon brush is asked evenly, otherwise will cause carbon brush abrasion to be accelerated, and the electric current on each carbon brush distributes unequal problem.
The utility model content
The technical problems to be solved in the utility model provides a kind of generator, and by the improvement of structure, the suffered stage clip pressure of carbon brush is even, contact between carbon brush and the rotor ring closely, the no-spark phenomenon, the electric current that is distributed on each piece carbon brush is even, the carbon brush abrasion rate is low, long service life.
For solving the problems of the technologies described above, embodiment of the present utility model provides a kind of generator, comprises brush carrier and carbon brush stage clip, and its described carbon brush stage clip is the constant voltage spring, and the bipod of this constant voltage spring is inserted in the described brush carrier.
Wherein, be fitted with carbon brush in the described brush carrier, the bipod of described carbon brush stage clip is divided into the both sides of described carbon brush.
Wherein, offer in the described brush carrier be used to the carbon brush location hole of locating described carbon brush, the both sides of described carbon brush location hole are one-body molded respectively a stage clip bearing holes, and the bipod of described carbon brush stage clip is inserted in the two described stage clip bearing holes accordingly.
Wherein, be provided with the gap between described carbon brush and the brush carrier inwall, described carbon brush is slidedly arranged in the described carbon brush location hole.Above-mentioned gap needs strict control, if the gap is too small, because expanded by heating may cause carbon brush stuck or fluctuate dumbly in brush carrier, all can affect contacting of carbon brush and rotor ring.If excesssive gap, carbon brush is beated in brush carrier easily.
The beneficial effect of technique scheme of the present utility model is as follows:
In the such scheme, the carbon brush stage clip is selected the constant voltage spring, and the suffered stage clip pressure of carbon brush is even, contact between carbon brush and the rotor ring closely, and the no-spark phenomenon, the electric current that is distributed on each piece carbon brush is even, and the carbon brush abrasion rate is low, long service life.
Description of drawings
Fig. 1 is the structural representation at the brush carrier place of existing generator in the background technology;
Fig. 2 is the structural representation at the brush carrier place of the utility model embodiment one;
Description of reference numerals:
1, brush carrier; 2, carbon brush stage clip; 3, carbon brush.
Embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The utility model is inhomogeneous for the suffered stage clip pressure of existing carbon brush, and loose contact between carbon brush and the rotor ring has spark, and the current unevenness that is distributed on each piece carbon brush is even, and the carbon brush abrasion rate is high, and the problem that useful life is short provides a kind of generator.
As shown in Figure 2, embodiment of the present utility model provides a kind of generator, comprises brush carrier 1 and carbon brush stage clip 2, offers the carbon brush location hole for location carbon brush 3 in the described brush carrier 1, be provided with the gap between the inwall of described carbon brush 3 and brush carrier 1, so that described carbon brush is slidedly arranged in the described carbon brush location hole.Above-mentioned gap needs strict control, if the gap is too small, because expanded by heating may cause carbon brush stuck or fluctuate dumbly in brush carrier, all can affect contacting of carbon brush and rotor ring; If excesssive gap, carbon brush is beated in brush carrier easily.
The both sides of described carbon brush location hole are one-body molded respectively a stage clip bearing holes, and described carbon brush stage clip 2 is the constant voltage spring, and the bipod of this constant voltage spring is inserted in the described stage clip bearing holes accordingly, is divided into the both sides of described carbon brush 3.
Carbon brush stage clip of the present utility model is selected the constant voltage spring, and the suffered stage clip pressure of carbon brush is even, contact between carbon brush and the rotor ring closely, and the no-spark phenomenon, the electric current that is distributed on each piece carbon brush is even, and the carbon brush abrasion rate is low, long service life.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. a generator comprises brush carrier and carbon brush stage clip, it is characterized in that, described carbon brush stage clip is the constant voltage spring, and the bipod of this constant voltage spring is inserted in the described brush carrier.
2. generator according to claim 1 is characterized in that, is fitted with carbon brush in the described brush carrier, and the bipod of described carbon brush stage clip is divided into the both sides of described carbon brush.
3. generator according to claim 1, it is characterized in that, offer in the described brush carrier be used to the carbon brush location hole of locating described carbon brush, the both sides of described carbon brush location hole are one-body molded respectively a stage clip bearing holes, and the bipod of described carbon brush stage clip is inserted in the two described stage clip bearing holes accordingly.
4. generator according to claim 3 is characterized in that, is provided with the gap between described carbon brush and the brush carrier inwall, and described carbon brush is slidedly arranged in the described carbon brush location hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320245891 CN203261171U (en) | 2013-05-08 | 2013-05-08 | Generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320245891 CN203261171U (en) | 2013-05-08 | 2013-05-08 | Generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203261171U true CN203261171U (en) | 2013-10-30 |
Family
ID=49473709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320245891 Expired - Fee Related CN203261171U (en) | 2013-05-08 | 2013-05-08 | Generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203261171U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577614A (en) * | 2014-11-25 | 2015-04-29 | 杨显清 | Insulated carbon brush, bush holder comprising insulated carbon brush and excitation system comprising brush holder |
-
2013
- 2013-05-08 CN CN 201320245891 patent/CN203261171U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577614A (en) * | 2014-11-25 | 2015-04-29 | 杨显清 | Insulated carbon brush, bush holder comprising insulated carbon brush and excitation system comprising brush holder |
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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: 20131030 Termination date: 20140508 |