CN210120303U - Reinforcing ring of commutator - Google Patents
Reinforcing ring of commutator Download PDFInfo
- Publication number
- CN210120303U CN210120303U CN201921351221.8U CN201921351221U CN210120303U CN 210120303 U CN210120303 U CN 210120303U CN 201921351221 U CN201921351221 U CN 201921351221U CN 210120303 U CN210120303 U CN 210120303U
- Authority
- CN
- China
- Prior art keywords
- commutator
- annular
- ring body
- reinforcing ring
- annular ring
- 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
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 29
- 238000007493 shaping process Methods 0.000 abstract description 2
- 229920001342 Bakelite® Polymers 0.000 description 9
- 239000004637 bakelite Substances 0.000 description 9
- 239000000843 powder Substances 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- Motor Or Generator Current Collectors (AREA)
Abstract
The utility model discloses a commutator reinforcing ring for annular circle body structure, its characterized in that: the inner hole of the annular ring body is a cylindrical hole, the outer circle of the annular ring body is a cylinder at the lower part, the upper part is an outer cone, and the small end of the outer cone is positioned on the upper end surface of the annular ring body; and the lower end surface of the annular ring body is provided with an annular groove. The utility model discloses can solve the inside loose and gas pocket that appears when the commutator is pressed and is annotated the shaping, better guarantee the mechanical strength and the dynamic balance performance of commutator, make the commutator can adapt to higher speed operation occasion.
Description
Technical Field
The utility model relates to a commutator, concretely relates to reinforcing ring of commutator.
Background
The commutator is widely applied to electric tools, in order to improve the mechanical strength of the commutator, some commutators with high rotating speed requirements usually adopt a reinforcing ring to reinforce a commutator copper sheet, the shape of the reinforcing ring is matched with that of a reinforcing ring groove, therefore, after the reinforcing ring is placed in the reinforcing ring groove, if the groove depth of the reinforcing ring groove is equivalent to the height dimension of the reinforcing ring, the gap space between the contact surface of the reinforcing ring groove and the reinforcing ring is very small, when the commutator copper sheet and the bakelite powder matrix are molded by co-injection, bakelite powder entering the gap space can be very little, the bakelite powder matrix is very easy to have looseness and air holes at the position, the mechanical strength of the commutator is influenced, the dynamic balance of the commutator is influenced, and the commutator is difficult to adapt to higher-speed running occasions.
Disclosure of Invention
The utility model aims to provide a can solve the commutator and press loose and the gas pocket that appears when annotating the shaping, better guarantee the mechanical strength and the dynamic balance performance of commutator, make the commutator can adapt to the commutator reinforcing ring of higher speed operation occasion.
The utility model discloses a through following technical scheme implement:
commutator reinforcing ring is annular circle body structure, its characterized in that: the inner hole of the annular ring body is a cylindrical hole, the outer circle of the annular ring body is a cylinder at the lower part, the upper part is an outer cone, and the small end of the outer cone is positioned on the upper end face of the annular ring body.
And the lower end surface of the annular ring body is provided with an annular groove.
Above-mentioned technical scheme's commutator reinforcing ring, install in the reinforcement annular of switching-over copper sheet, the cylinder hole of reinforcing ring and the whole contact of the inboard of reinforcing annular, play the cramp reinforcing effect to the switching-over copper sheet, and the excircle upper portion of reinforcing ring, owing to have the outer cone design, so the upper portion outside of reinforcing annular can leave great space and be used for the packing of bakelite powder, ring channel space is also left to the bottom of ring body simultaneously and bakelite powder easily packs, effectively avoid the bakelite powder base member at the clearance space position between reinforcing ring and the reinforcement annular to appear loose and gas pocket, and then better guarantee the mechanical strength and the dynamic balance performance of commutator, make the commutator can adapt to higher speed operation occasion.
Drawings
Figure 1 is a schematic structural diagram of the present invention,
figure 2 is a top view in elevation of figure 1,
fig. 3 is an installation diagram of the present invention in the commutator.
Detailed Description
As shown in fig. 1 and 2, the utility model discloses a commutator reinforcing ring, for annular circle body 1 structure, the hole of annular circle body 1 is cylinder hole 2, and the excircle of annular circle body 1 is cylinder 3 in the lower part, and upper portion is outer cone 4, and the tip end of outer cone 4 is located the up end of annular circle body 1, the lower terminal surface of annular circle body 1 is equipped with ring channel 5.
As shown in fig. 3, the utility model discloses a commutator reinforcing ring, install in the reinforcement annular groove 8 of the switching-over copper sheet 6 in the commutator, the whole contact of cylinder hole 2 of annular ring body 1 and the inboard of reinforcing annular groove 8, play the hoop reinforcement effect to switching-over copper sheet 6, and the excircle upper portion of annular ring body 1, owing to have the design of outer cone 4, so the upper portion outside of reinforcing annular groove 8 can leave great space and be used for the packing of bakelite powder, 5 spaces messenger bakelite powder in the annular groove 5 spaces also are left to annular ring body 1's bottom simultaneously easily fills, loose and gas pocket appear in effectively avoiding reinforcing bakelite powder base member 7 in the annular groove 8, and then better mechanical strength and the dynamic balance performance of guaranteeing the commutator, make the commutator can adapt to higher speed operation occasion.
Claims (2)
1. Commutator reinforcing ring is annular circle body structure, its characterized in that: the inner hole of the annular ring body is a cylindrical hole, the outer circle of the annular ring body is a cylinder at the lower part, the upper part is an outer cone, and the small end of the outer cone is positioned on the upper end face of the annular ring body.
2. The commutator reinforcing ring of claim 1, wherein: and the lower end surface of the annular ring body is provided with an annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921351221.8U CN210120303U (en) | 2019-08-20 | 2019-08-20 | Reinforcing ring of commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921351221.8U CN210120303U (en) | 2019-08-20 | 2019-08-20 | Reinforcing ring of commutator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210120303U true CN210120303U (en) | 2020-02-28 |
Family
ID=69617211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921351221.8U Expired - Fee Related CN210120303U (en) | 2019-08-20 | 2019-08-20 | Reinforcing ring of commutator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210120303U (en) |
-
2019
- 2019-08-20 CN CN201921351221.8U patent/CN210120303U/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 |
Granted publication date: 20200228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |