CN2657241Y - Copper pipe for making commutator - Google Patents
Copper pipe for making commutatorInfo
- Publication number
- CN2657241Y CN2657241Y CN 03210490 CN03210490U CN2657241Y CN 2657241 Y CN2657241 Y CN 2657241Y CN 03210490 CN03210490 CN 03210490 CN 03210490 U CN03210490 U CN 03210490U CN 2657241 Y CN2657241 Y CN 2657241Y
- Authority
- CN
- China
- Prior art keywords
- copper pipe
- wall
- commutator
- inwall
- groove
- 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
Links
Images
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
The utility model discloses a copper tube used to make a commutator, which comprises an inner wall and an outer wall. The upper diameter of the inner wall is provided with equal interval grooves which extends gradually from the inner wall to the outer wall and then gradually shrinks. The top of the grooves is provided with convex part and the convex part presents the form of circular-arc in the copper tube cross section. The upper diameter of the inner wall extends towards to the top of the groove and then extends over the circular-arc surface in which the copper tube outer wall is arranged. When the commutator is made, first cut the copper tube into the length needed to make the commutator, and then press the fillings into the copper tube, and at last cut the outer wall of the copper tube to the top of the groove according to the circumference, thus reducing the processing operation of the commutator.
Description
Technical field
The utility model relates to a kind of metal tube, especially a kind of copper pipe that is used to make commutator.
Background technology
At present, copper pipe kind common on the market is a lot, and as for the inner screw thread copper pipe of the heat transfer area that increases copper pipe etc., but Shang Weiyou can be used to make the copper pipe of commutator screening.And traditional commutator screening is with artificial skill commutator segment to be lined up annulus, a kind of new method of commutator screening is disclosed as CN1089762A " commutator slice arranging apparatus and screening technology thereof ", this method is that skeleton carries out screening with the slice arranging apparatus, improved the efficient of screening, but remain monolithic as screening, be used for the blocks of combination of commutator needs.
Summary of the invention
At the problems referred to above, the problem that the utility model quasi-solution is determined provides a kind of copper pipe that can be directly used in the screening of manufacturing commutator.
For addressing the above problem, the utility model has adopted following technical scheme: a kind of copper pipe that is used to make commutator, comprise inner and outer wall, and radially be provided with equidistant groove on the described inwall.
The above-mentioned copper pipe that is used to make commutator, the outer wall of the top normal direction correspondence of described groove is provided with projection.Described projection is circular arc or triangle or trapezoidal at the copper pipe cross section, and the fox face is justified at the copper pipe outer wall place that surpasses on radial groove top on the described inwall.
The above-mentioned copper pipe that is used to make commutator, described groove is progressively to expand the structure of progressively shrinking again earlier from inwall to the outer wall direction.
Owing to adopted said structure, on the inwall of copper pipe, radially be provided with a plurality of equidistant grooves, when making commutator,, again filler is pressed onto in the copper pipe, then the outer wall of copper pipe is got final product by the apical position that circumference cuts to groove as long as earlier copper pipe is cut the required length of commutator.As improvement of the present utility model, the outer wall of the top normal direction correspondence of groove is provided with projection.On the inwall position on radial groove top general with the copper pipe outer wall on same round fox, like this, filler is pressed onto in the copper pipe when making commutator, needs only then the projection of the outer wall of copper pipe to be cut away, and not only saves copper material but also reduced manufacturing procedure.
Description of drawings
Fig. 1 is copper pipe embodiment 1 sectional view that the utility model is made commutator;
Fig. 2 is copper pipe embodiment 2 sectional views that the utility model is made commutator.
Among the figure: 1-inwall, 2-groove, 3-outer wall, 4-projection.
Embodiment
Embodiment 1
As shown in Figure 1; the copper pipe that is used to make commutator of the present utility model comprises inwall 1 and outer wall 3; radially be provided with 25 equidistant grooves 2 on the described inwall 1; the number of described groove 2 can be decided according to the actual requirements; it can be five; also can be five nineteens, need to prove that here the number that only changes groove 2 does not break away from the protection range of this utility model.The degree of depth of groove 2 make as far as possible groove 2 tops near copper pipe outer wall 3, when making commutator, can reduce to cut surplus, not only saving of labor but also economical with materials like this.
Copper pipe of the present utility model, groove 2 are to be the first expansion structure of progressively shrinking again progressively from inwall to the outer wall direction, and the structure of screening of like this outer wall being cut later structure of one deck and existing commutator is identical.
Embodiment 2
Referring to Fig. 2, the copper pipe that present embodiment is used to make commutator is provided with projection 4 on the outer wall of the top of groove 2 normal direction correspondence except radially be provided with a plurality of equidistant grooves 2 on inwall 1.Projection 4 is a circular arc at the copper pipe cross section, can also be triangle or trapezoidal in addition, and the position on radial groove 2 tops surpasses copper pipe outer wall 3 place arc surfaces on the inwall 1.When making commutator, need only like this projection on the outer wall 4 is cut away the structure that just becomes screening.Equally, groove 2 is progressively to expand the structure of more progressively shrinking to the outer wall direction for elder generation from inwall.
The copper pipe that is used to make commutator of above-mentioned two embodiment, when making commutator, need only and earlier copper pipe is cut the required length of commutator, axial positioning structure is set again, axial positioning structure can be the depression of copper pipe inwall 1 upper edge circumference, also can punch on copper pipe inwall 1, and filler is pressed onto in the copper pipe then, like this, because axial positioning structure is set, make copper pipe and filler mass-energy axial restraint, at last the outer wall of copper pipe is got final product by the apical position that circumference cuts to above groove.
Claims (6)
1. a copper pipe that is used to make commutator comprises inwall (1) and outer wall (3), it is characterized in that radially being provided with on the described inwall (1) a plurality of equidistant grooves (2).
2. the copper pipe that is used to make commutator according to claim 1, the position that it is characterized in that last radial groove (2) top of described inwall (1) is near the same arc surface in copper pipe outer wall (3) place.
3. the copper pipe that is used to make commutator according to claim 1 is characterized in that the outer wall of the top normal direction correspondence of described groove (2) is provided with projection (4).
4. the copper pipe that is used to make commutator according to claim 3 is characterized in that described projection (4) is circular arc or triangle or trapezoidal at the copper pipe cross section.
5. the copper pipe that is used to make commutator according to claim 4 is characterized in that described inwall (1) upward surpasses and the same arc surface in copper pipe outer wall (3) place the position on radial groove (2) top.
6. according to any described copper pipe that is used to make commutator of claim 1-5, it is characterized in that described groove (2) is progressively to expand the structure of progressively shrinking again earlier from inwall (1) to outer wall (3) direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210490 CN2657241Y (en) | 2003-09-05 | 2003-09-05 | Copper pipe for making commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210490 CN2657241Y (en) | 2003-09-05 | 2003-09-05 | Copper pipe for making commutator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2657241Y true CN2657241Y (en) | 2004-11-17 |
Family
ID=34325450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03210490 Expired - Fee Related CN2657241Y (en) | 2003-09-05 | 2003-09-05 | Copper pipe for making commutator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2657241Y (en) |
-
2003
- 2003-09-05 CN CN 03210490 patent/CN2657241Y/en not_active Expired - Fee Related
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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 |