CN215221220U - Commutator - Google Patents
Commutator Download PDFInfo
- Publication number
- CN215221220U CN215221220U CN202120951053.7U CN202120951053U CN215221220U CN 215221220 U CN215221220 U CN 215221220U CN 202120951053 U CN202120951053 U CN 202120951053U CN 215221220 U CN215221220 U CN 215221220U
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- China
- Prior art keywords
- reinforcing
- commutator
- spring bushing
- commutator segment
- boss
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Abstract
A commutator comprises an bakelite powder main body, wherein a spring bushing is arranged in the bakelite powder main body, a plurality of commutator segments are uniformly embedded in the outer ring of the bakelite powder main body, each commutator segment comprises a copper pin and a boss, extending strips are arranged on two sides of the copper pin of each commutator segment, a reinforcing groove is formed between each extending strip and the copper pin of each commutator segment, a reinforcing ring is arranged in each reinforcing groove, and a fastening strip for locking the reinforcing ring is arranged at the end part of each extending strip, facing one side of each reinforcing groove; the spring bushing is characterized in that a plurality of reinforcing strips are uniformly arranged on the surface of one side, facing the commutator segment, of the boss of the spring bushing along the spiral direction of the spring bushing, and fastening grooves are formed in the two sides of each reinforcing strip of the spring bushing; the utility model has the advantages of simple structure, reasonable design, high mechanical strength, stable overspeed performance, long service life and the like.
Description
Technical Field
The utility model relates to a commutator.
Background
The commutator is widely applied to electric tools and automobile motors, an upper reinforcing ring and a lower reinforcing ring are usually adopted to reinforce a commutator segment of the commutator during production of the commutator, and a spring bushing is arranged on the inner side of an bakelite powder main body of the commutator so as to improve the mechanical strength and the overspeed performance of the commutator; however, at high speeds, the reinforcing ring is likely to fall off the commutator segments, resulting in scrapping of the commutator, and conventional spring bushings are not stable at high speeds.
Disclosure of Invention
The utility model aims to solve the defects of the prior art, the utility model provides a commutator which has the advantages of simple structure, reasonable design, high mechanical strength, stable overspeed performance and long service life.
The utility model provides a technical scheme that its technical problem adopted is: a commutator comprises an bakelite powder main body, wherein a spring bushing is arranged in the bakelite powder main body, a plurality of commutator segments are uniformly embedded in the outer ring of the bakelite powder main body, each commutator segment comprises a copper pin and a boss, extending strips are arranged on two sides of the copper pin of each commutator segment, a reinforcing groove is formed between each extending strip and the copper pin of each commutator segment, a reinforcing ring is arranged in each reinforcing groove, and a fastening strip for locking the reinforcing ring is arranged at the end part of each extending strip, facing one side of each reinforcing groove; spring bushing evenly is equipped with a plurality of along spring bushing's spiral direction towards the boss one side surface of commutator segment and strengthens the strip, spring bushing all is equipped with fastening groove in the both sides of strengthening the strip.
Preferably, the surface of the spring bushing, which faces the lug boss of the commutator segment, is uniformly provided with five reinforcing bars along one circle of the spiral direction of the spring bushing.
The utility model discloses a reinforcing groove that is used for placing the reinforcing ring is set up to the copper foot both sides of commutator segment of commutator, and set up the fastening strip that is used for locking the reinforcing ring in reinforcing groove one side and avoid the drop of reinforcing ring, still set up reinforcing strip and fastening groove on spring bushing and improve the area of contact of bakelite powder and spring bushing, thereby improved the bulk strength of commutator, under the prerequisite of guaranteeing manufacturing cost, the commutator of the invention can reach more than 400 seconds and the commutator wholly keeps intact in lasting overtaking test; the utility model has the advantages of simple structure, reasonable design, high mechanical strength, stable overspeed performance, long service life and the like.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is an enlarged view of fig. 1 a according to the present invention.
Detailed Description
The technical solution of the present invention is further specifically described below by way of specific embodiments and with reference to the accompanying drawings.
Example (b):
the commutator shown in fig. 1 to 2 includes an bakelite powder main body 11, a spring bushing 12 is arranged in the bakelite powder main body 11, a plurality of commutator segments 13 are uniformly embedded in an outer ring of the bakelite powder main body 11, each commutator segment 13 includes a copper leg 131 and a boss 132, extending bars 133 are respectively arranged on two sides of the copper leg 131 of each commutator segment 13, a reinforcing groove 134 is formed between each extending bar 133 and the copper leg 131 of each commutator segment 13, a reinforcing ring 14 is arranged in each reinforcing groove 134, and a fastening bar 135 for locking the reinforcing ring 14 is arranged at one side of an end of each extending bar 133, which faces the reinforcing groove 134; five reinforcing strips 121 are uniformly arranged on the surface of one side, facing the boss 132 of the commutator segment 13, of the spring bushing 12 along the spiral direction of the spring bushing 12 for one circle, and fastening grooves 122 are formed in two sides of each reinforcing strip 121 of the spring bushing 12.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.
Claims (2)
1. The utility model provides a commutator, includes bakelite powder main part (11), be equipped with spring bushing (12) in bakelite powder main part (11), bakelite powder main part (11) outer lane is evenly inlayed and is equipped with a plurality of switching-over pieces (13), its characterized in that: the commutator segment (13) comprises copper pins (131) and a boss (132), extension bars (133) are arranged on two sides of each copper pin (131) of the commutator segment (13), a reinforcing groove (134) is formed between each extension bar (133) and each copper pin (131) of the commutator segment (13), a reinforcing ring (14) is arranged in each reinforcing groove (134), and a fastening bar (135) for locking the reinforcing ring (14) is arranged at one side, facing the reinforcing groove (134), of the end part of each extension bar (133); the spring bushing (12) is evenly provided with a plurality of reinforcing strips (121) along the spiral direction of the spring bushing (12) towards one side surface of the boss (132) of the commutator segment (13), and the spring bushing (12) is provided with fastening grooves (122) on two sides of the reinforcing strips (121).
2. A commutator according to claim 1, wherein: the spring bushing (12) is provided with five reinforcing strips (121) facing the boss (132) side surface of the commutator segment (13) along the spiral direction of the spring bushing (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120951053.7U CN215221220U (en) | 2021-05-06 | 2021-05-06 | Commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120951053.7U CN215221220U (en) | 2021-05-06 | 2021-05-06 | Commutator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215221220U true CN215221220U (en) | 2021-12-17 |
Family
ID=79448465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120951053.7U Active CN215221220U (en) | 2021-05-06 | 2021-05-06 | Commutator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215221220U (en) |
-
2021
- 2021-05-06 CN CN202120951053.7U patent/CN215221220U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |