CN211508144U - Double-piece electric brush for seamless steel tube main machine motor commutator - Google Patents
Double-piece electric brush for seamless steel tube main machine motor commutator Download PDFInfo
- Publication number
- CN211508144U CN211508144U CN201922350178.XU CN201922350178U CN211508144U CN 211508144 U CN211508144 U CN 211508144U CN 201922350178 U CN201922350178 U CN 201922350178U CN 211508144 U CN211508144 U CN 211508144U
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- brush
- carbon
- fixed
- seamless steel
- steel tube
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Abstract
The double-piece electric brush for the seamless steel tube main machine motor commutator comprises a base, wherein two pressure springs are fixed on the base, a pressing plate is fixed on each pressure spring, a carbon brush is fixed on each pressing plate, and the carbon brushes are contacted with the commutator by pressing of the pressure springs. A gap is formed between the two carbon brushes, so that the influence of each other is reduced. The two carbon brushes are located in a plane and parallel to each other. Compared with the prior art, the technical effect of the utility model is that, the utility model discloses be equipped with two carbon brushes, if above-mentioned "make whole carbon brush unsettled because of contact is not good at one point" the time, only a carbon brush is unsettled, and another carbon brush is still in normal contact.
Description
Technical Field
The utility model relates to a production facility of steelmaking trade.
Background
At present, as shown in fig. 1, the seamless steel tube host motor is a dc motor, which is connected to a brush through a peripheral commutator 10. During rotation of the commutator 10, an annular band 11 is formed at a position where it contacts the brush. The brush comprises a base 20, a compression spring 21 is fixed on the base 20, a pressing plate 22 is fixed on the compression spring 21, a carbon brush 23 is fixed on the pressing plate 22, and the carbon brush 23 is contacted with the commutator 10 by the compression of the compression spring 21.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem who solves: since the belt load is often increased during the operation of the motor, a large current is required to pass through the belt, and the area where the annular belt 11 is located is partially worn away, as shown in fig. 2, so that the annular belt 11 is an annular concave area.
Moreover, the side walls of the recessed area are not smooth, as in fig. 3 (lower side wall), at a certain instant, if the brush is totally recessed in the recessed area, then the contact of the brush with the commutator is normal; if the brush is only in point contact with the side wall of the depressed area (see reference numeral 12 of fig. 3) and other areas of the brush do not contact the annular band 11, the contact between the brush and the commutator is abnormal (the contact area is too small), causing a large amount of heat to be generated at that moment, causing the brush and the commutator to be deformed or damaged by overheating.
The latter case, also called: the whole carbon brush is suspended because of poor contact at one point.
The technical scheme of the utility model specifically does:
the double-piece electric brush for the seamless steel tube main machine motor commutator comprises a base, wherein two pressure springs are fixed on the base, a pressing plate is fixed on each pressure spring, a carbon brush is fixed on each pressing plate, and the carbon brushes are contacted with the commutator by pressing of the pressure springs.
A gap is formed between the two carbon brushes, so that the influence of each other is reduced.
The two carbon brushes are located in a plane and parallel to each other.
Compared with the prior art, the technical effect of the utility model is that, the utility model discloses be equipped with two carbon brushes, if above-mentioned "make whole carbon brush unsettled because of contact is not good at one point" the time, only a carbon brush is unsettled, and another carbon brush is still in normal contact.
Drawings
Fig. 1 is a schematic diagram of the prior art.
FIG. 2 is a schematic diagram of a prior art recessed region.
Fig. 3 is a schematic view of a carbon brush suspension according to the prior art.
Fig. 4 is a schematic diagram of the present invention.
Detailed Description
Referring to fig. 2, the double-piece brush for the seamless steel tube main machine motor commutator comprises a base 34, two compression springs 33 are fixed on the base 34, a pressing plate 32 is fixed on each compression spring 33, a carbon brush 31 is fixed on each pressing plate 32, and the carbon brush 23 is contacted with the commutator 10 by the compression of the compression springs 21.
A gap is formed between the two carbon brushes 31, and the influence of each other is reduced.
The two carbon brushes 31 are located in a plane and parallel to each other.
The working principle is as follows:
when the carbon brush is used, if the whole carbon brush is suspended due to poor contact at one point, only one carbon brush is suspended, and the other carbon brush is still in normal contact.
See the prior art for additional details.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the general inventive concept, and it is intended to cover all such changes and modifications as fall within the true spirit and scope of the invention.
Claims (3)
1. The utility model provides a seamless steel pipe host computer is biplate brush for motor commutator, includes base (34), its characterized in that: two pressure springs (33) are fixed on the base (34), each pressure spring (33) is fixed with one pressure plate (32), each pressure plate (32) is fixed with one carbon brush (31), and the carbon brushes (23) are contacted with the commutator (10) by the compression of the pressure springs (21).
2. The seamless steel tube double-piece brush for the motor commutator of the main machine according to claim 1, characterized in that: a gap is arranged between the two carbon brushes (31).
3. The seamless steel tube double-piece brush for the motor commutator of the main machine according to claim 1, characterized in that: the two carbon brushes (31) are located in a plane and are parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922350178.XU CN211508144U (en) | 2019-12-24 | 2019-12-24 | Double-piece electric brush for seamless steel tube main machine motor commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922350178.XU CN211508144U (en) | 2019-12-24 | 2019-12-24 | Double-piece electric brush for seamless steel tube main machine motor commutator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211508144U true CN211508144U (en) | 2020-09-15 |
Family
ID=72419080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922350178.XU Expired - Fee Related CN211508144U (en) | 2019-12-24 | 2019-12-24 | Double-piece electric brush for seamless steel tube main machine motor commutator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211508144U (en) |
-
2019
- 2019-12-24 CN CN201922350178.XU patent/CN211508144U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200915 Termination date: 20211224 |