CN211088704U - Pure copper mica-free commutator - Google Patents
Pure copper mica-free commutator Download PDFInfo
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- CN211088704U CN211088704U CN201922138370.2U CN201922138370U CN211088704U CN 211088704 U CN211088704 U CN 211088704U CN 201922138370 U CN201922138370 U CN 201922138370U CN 211088704 U CN211088704 U CN 211088704U
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- commutator
- commutator segment
- segment body
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Abstract
The utility model relates to the technical field of commutators, in particular to a pure copper mica-free commutator which comprises a commutator main body, wherein the commutator main body comprises commutator segments, and each commutator segment comprises a commutator segment body and a root part; the commutator segment body is equipped with along the both ends face of minor axis direction and all is equipped with 2 first locating pieces, two first locating pieces set up along commutator segment body length direction interval, be equipped with the second locating piece between two first locating pieces, first locating piece and second locating piece on the same terminal surface on the commutator segment body along commutator segment body minor axis direction dislocation set, first locating piece on the both ends face on the commutator segment body along commutator segment body minor axis direction dislocation set, it is corresponding, second locating piece dislocation set on the both ends face on the commutator segment body. The utility model discloses both promoted row's piece efficiency in the commutator production process, avoided again because appearing the dislocation between the two adjacent commutator segments and cause the interference to subsequent production technology.
Description
Technical Field
The utility model relates to a commutator technical field, specifically speaking relates to a pure copper does not have mica commutator.
Background
A commutator is an important component in a dc motor. At present, mica sheets and commutator sheets are arranged alternately in the processing process of the commutator so as to prevent the short circuit caused by the contact of adjacent commutator sheets. However, the operation of arranging the mica sheets and the commutator segments is troublesome, the requirement on the arrangement precision of the mica sheets is high, the commutator cannot be normally processed due to the position deviation of the mica sheets, the processing difficulty of the commutator is increased, and the labor cost is increased.
Patent document with application number CN201320376052.X discloses a no mica commutator structure, including base and commutator segment, the commutator segment is the circumference setting along the base, the commutator segment includes commutator segment body and root, its characterized in that: the commutator segment comprises a commutator segment body and is characterized in that positioning blocks are arranged on two sides of the commutator segment body in the short axis direction, and the thickness of each positioning block is smaller than that of the commutator segment body. Although the utility model discloses a reduce the degree of difficulty of processing, improved production efficiency, but when carrying out the row piece to the commutator, because the position of locating piece is certain, thereby probably take place the dislocation phenomenon between the locating piece on the double-phase adjacent commutator segment and make the dislocation phenomenon appear between the two adjacent commutator segments to be unfavorable for realizing arranging the piece to the high efficiency of commutator segment.
SUMMERY OF THE UTILITY MODEL
The defect that dislocation probably appears between the adjacent commutator segment when arranging the piece to the ordinary no mica commutator that exists among the prior art, the utility model provides a pure copper does not have mica commutator. The commutator segment arranging device can avoid the effect that dislocation can occur between two adjacent commutator segments when the commutator segments are arranged.
In order to solve the technical problem, the utility model discloses a following technical scheme can solve:
a pure copper mica-free commutator comprises a commutator main body, wherein the commutator main body comprises a base, commutator segments are arranged on the base along the circumferential direction, adjacent commutators are insulated by gaps, and each commutator segment comprises a commutator segment body and a root part; the commutator segment body is equipped with all and is equipped with 2 first locating pieces along the both ends face of minor axis direction, the thickness of first locating piece is half of commutator segment body thickness, two first locating pieces set up along commutator segment body length direction interval, be equipped with the second locating piece between two first locating pieces, the thickness of second locating piece is half of commutator segment body thickness, first locating piece and the dislocation set of second locating piece along commutator segment body minor axis direction on the same terminal surface on the commutator segment body, first locating piece on the both ends face on the commutator segment body is along commutator segment body minor axis direction dislocation set, it is corresponding, the dislocation set of the second locating piece on the both ends face on the commutator segment body.
Through the utility model discloses a setting of first locating piece and second locating piece can comparatively effectually avoid taking place the dislocation between the double-phase adjacent commutator segment of row's piece in-process and lead to the interference caused to the suppression process. Therefore, the plate arranging efficiency in the commutator production process is improved, and the interference to the subsequent production process due to the dislocation between two adjacent commutator plates is avoided.
Preferably, both ends of the upper end of the commutator segment body along the short axis direction are provided with grooves.
The utility model discloses in, through the setting of recess, can be when carrying out the grooving under milling to the commutator, through carrying out the grooving in groove to the groove has made things convenient for milling going on of grooving down.
Drawings
Fig. 1 is a top view of a pure copper mica-free commutator of example 1.
Fig. 2 is a cross-sectional view of a pure copper mica-free commutator of example 1.
Fig. 3 is a schematic structural diagram of the commutator segment in fig. 2.
The names of the parts indicated by the numerical references in the drawings are as follows:
100. a commutator body; 110. a base; 120. a commutator segment; 310. a commutator segment body; 311. a first positioning block; 312. a second positioning block; 320. a root portion; 330. and (4) a groove.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention only and are not limiting.
Example 1
As shown in fig. 1-3, the embodiment provides a pure copper mica-free commutator, which includes a commutator main body 100, the commutator main body includes a base 110, commutator segments 120 are circumferentially disposed on the base 110, adjacent commutators are insulated by gaps, and the commutator segments 120 include a commutator segment main body 310 and a root portion 320; the commutator segment body 310 is provided with 2 first positioning blocks 311 along the two end faces of the short axis direction, the thickness of the first positioning blocks 311 is half of the thickness of the commutator segment body 310, the two first positioning blocks 311 are arranged at intervals along the length direction of the commutator segment body 310, a second positioning block 312 is arranged between the two first positioning blocks 311, the thickness of the second positioning block 312 is half of the thickness of the commutator segment body 310, the first positioning blocks 311 and the second positioning blocks 312 on the same end face of the commutator segment body 310 are arranged along the short axis direction of the commutator segment body 310 in a staggered manner, the first positioning blocks 311 on the two end faces of the commutator segment body 310 are arranged along the short axis direction of the commutator segment body 310 in a staggered manner, and correspondingly, the second positioning blocks 312 on the two end faces of the commutator segment body 310 are arranged in a staggered manner.
Through the arrangement of the first positioning blocks 311 and the second positioning blocks 312 in the embodiment, when commutator production is performed, when commutator segments 120 need to be arranged, the plurality of commutator segments 120 can be sequentially arranged to enable the second positioning blocks 312 on two adjacent commutator segments to extend into the space between the two first positioning blocks 311, and compared with a non-mica commutator structure in a file, the commutator segment pressing device effectively avoids the problem that the two adjacent commutator segments 120 are staggered in the segment arrangement process to cause interference to the pressing process. Therefore, the plate arranging efficiency in the commutator production process is improved, and the interference to the subsequent production process caused by the dislocation between two adjacent commutator plates 120 is avoided.
In this embodiment, the upper end of the segment body 310 has a groove 330 at both ends along the short axis direction.
Through the arrangement of the groove 330 in the embodiment, when the commutator is milled with lower notches, the notch is formed in the groove 330, so that the milling of the lower notches is facilitated.
The implementation also provides a production method for producing the pure copper mica-free commutator, which comprises the following steps:
step one, sequentially extruding, drawing, punching, shearing and vibrating the copper material to obtain a commutator segment 120;
step two, cake making is carried out on the bakelite powder;
step three, pressing and molding the commutator segment 120 and the bakelite powder obtained in the step one and the step two, and curing to obtain a commutator primary product;
fourthly, boring the commutator primary product manufactured in the third step, turning an outer circle, boring an inner hole of a hook foot, milling a lower notch groove, milling the hook foot, returning the hole, extruding the hook foot and bending the hook to manufacture a commutator main body 100;
and step five, detecting the commutator body 100 manufactured in the step four.
The production process of the pure copper mica-free commutator in the embodiment overcomes the problem that mica sheets need to be inserted in the sheet arranging process in the conventional manufacturing method of the sheet inserting type commutator, and the mica sheets do not need to be used when the commutator segments 120 are arranged, so that the sheet arranging efficiency is effectively improved, the production process of the commutator is simplified, the mica sheets are also avoided, and the production cost is reduced.
In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.
Claims (2)
1. Pure copper does not have mica commutator, its characterized in that: the commutator comprises a commutator main body (100), wherein the commutator main body comprises a base (110), commutator segments (120) are arranged on the base (110) along the circumferential direction, adjacent commutators are insulated by gaps, and each commutator segment (120) comprises a commutator segment body (310) and a root part (320); the commutator segment comprises a commutator segment body (310), and is characterized in that 2 first positioning blocks (311) are arranged on two end faces of the commutator segment body (310) in the short axis direction, the thickness of each first positioning block (311) is half of that of the commutator segment body (310), the two first positioning blocks (311) are arranged in the length direction of the commutator segment body (310) at intervals, a second positioning block (312) is arranged between the two first positioning blocks (311), the thickness of each second positioning block (312) is half of that of the commutator segment body (310), the first positioning blocks (311) and the second positioning blocks (312) on the same end face of the commutator segment body (310) are arranged in a staggered mode in the short axis direction of the commutator segment body (310), the first positioning blocks (311) on two end faces of the commutator segment body (310) are arranged in a staggered mode in the short axis direction of the commutator segment body (310), and correspondingly, the second positioning blocks (312) on the two end faces of the commutator segment body (310.
2. The pure copper mica-free commutator of claim 1, wherein: grooves (330) are arranged at two ends of the upper end part of the commutator segment body (310) along the short axis direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922138370.2U CN211088704U (en) | 2019-12-03 | 2019-12-03 | Pure copper mica-free commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922138370.2U CN211088704U (en) | 2019-12-03 | 2019-12-03 | Pure copper mica-free commutator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211088704U true CN211088704U (en) | 2020-07-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922138370.2U Active CN211088704U (en) | 2019-12-03 | 2019-12-03 | Pure copper mica-free commutator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211088704U (en) |
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2019
- 2019-12-03 CN CN201922138370.2U patent/CN211088704U/en active Active
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| CP03 | Change of name, title or address |
Address after: 321035 building 3, South plot, Xiaoshun Town, Jindong District, Jinhua City, Zhejiang Province Patentee after: Jinhua Huifeng Electric Appliance Co.,Ltd. Address before: 321000 building 3, South plot, Xiaoshun Town, Jindong District, Jinhua City, Zhejiang Province Patentee before: JINHUA HUIFENG ELECTRIC APPLIANCE Co.,Ltd. |