CN201690286U - Novel water fender for micromotor - Google Patents
Novel water fender for micromotor Download PDFInfo
- Publication number
- CN201690286U CN201690286U CN2010201246932U CN201020124693U CN201690286U CN 201690286 U CN201690286 U CN 201690286U CN 2010201246932 U CN2010201246932 U CN 2010201246932U CN 201020124693 U CN201020124693 U CN 201020124693U CN 201690286 U CN201690286 U CN 201690286U
- Authority
- CN
- China
- Prior art keywords
- bakelite plate
- rubber ring
- motor
- end cap
- water fender
- 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 - Lifetime
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- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a novel water fender for a micromotor. The novel water fender comprises a Bakelite plate and a rubber ring; on end of the Bakelite plate is bonded with the rubber ring; the inner diameter of the rubber ring is smaller than that of the Bakelite plate; and the whole water fender is sleeved on a motor rotating shaft. The Bakelite plate is smooth and close to the surface of the end cap of the motor, and the inner diameter of the rubber ring is smaller than that of the Bakelite plate, so when the motor rotating shaft rotates and shifts, the rubber ring is only stretched and changed in the axial direction, and the distance between the Bakelite plate and the surface of the end cap of the motor is automatically corrected to ensure that a certain gap is kept between the Bakelite plate and the surface of the end cap of the motor, that is, friction hardly exists between the Bakelite plate and the surface of the end cap of the motor, thereby achieving silent effect, preventing water fender damage in long-time use, and realizing perfect waterproof effect.
Description
Technical field:
The utility model relates to the novel retaining ring of a kind of electrical micro-machine.
Background technology:
At present, most electrical micro-machines all pass through annular slot of processing on machine shaft in the use with retaining ring, retaining ring is nested in the annular slot the inside and rotates with machine shaft, there are the following problems: that end on retaining ring contact electric motor end cap surface is more coarse, causes to produce friction between retaining ring and the electric motor end cap surface, and noise is bigger, service time is of a specified duration, can damage retaining ring, influence its water resistance, cause waterproof effect low.
Summary of the invention:
The purpose of this utility model is to solve above-mentioned technological deficiency, provide a kind of simple in structure, possess quiet effect and the novel retaining ring of the splendid electrical micro-machine of waterproof effect.
The utility model is to be achieved by following technical scheme.
The novel retaining ring of a kind of electrical micro-machine comprises bakelite plate and rubber ring, and an end and the rubber ring of bakelite plate are bonded together, and the internal diameter of rubber ring is littler than the internal diameter of bakelite plate, and whole retaining ring is sleeved on the machine shaft.
The internal diameter of described rubber ring is than the little 0.2mm～0.3mm of internal diameter of bakelite plate.
Described bakelite plate adopts cloth matter bakelite plate.
Described rubber ring is made by acrylonitrile-butadiene rubber.
The beneficial effects of the utility model are: 1) retaining ring directly is enclosed within on the machine shaft, the internal diameter of rubber ring is littler than the internal diameter of bakelite plate, play takes place during the machine shaft rotation, and only can stretch changes the axial distance of rubber ring, revises the distance between bakelite plate and the electric motor end cap surface automatically, make the certain space of maintenance between bakelite plate and the electric motor end cap surface, almost not friction possesses quiet effect between them, and service time is of a specified duration, also can not damage retaining ring, waterproof effect is splendid; 2) need not on machine shaft, to offer the annular slot that the installation retaining ring is used, reduced manufacturing cost to a certain extent; 3) bakelite plate adopts cloth matter bakelite plate, and its intensity height, great thermotolerance, surface flatness height have effectively prevented the friction of itself and electric motor end cap; 4) rubber ring is made by acrylonitrile-butadiene rubber, is rich in elasticity, is convenient to retaining ring and installs and uses.
Description of drawings:
Fig. 1 is the effect figure of retaining ring in the utility model.
Fig. 2 is the A-A enlarged diagram among Fig. 1.
Fig. 3 is the structure cross-sectional schematic of retaining ring among Fig. 1.
Embodiment:
Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.
As shown in Figure 1 and Figure 2, a kind of electrical micro-machine is with novel retaining ring 1, comprise bakelite plate 2 and rubber ring 3, one end and the rubber ring 3 of bakelite plate 2 are bonded together, the other end is a shiny surface 21, the inside diameter D 2 of rubber ring 3 is littler than the inside diameter D 1 of bakelite plate 2, and rubber ring 3 tightly is enclosed within on the machine shaft 4, and the shiny surface 21 that makes bakelite plate 2 is near electric motor end cap 5 surfaces.
As shown in Figure 3, the inside diameter D 1 of the inside diameter D 2 of rubber ring 3 and bakelite plate 2 has differed 0.2mm～0.3mm.Bakelite plate 2 adopts cloth matter bakelite plate; Rubber ring 3 is made by acrylonitrile-butadiene rubber.
Play when rotating, machine shaft takes place, only can stretch and change the axial distance of rubber ring, automatically revise the distance between bakelite plate and the electric motor end cap surface, make and keep certain space between shiny surface on the bakelite plate and the electric motor end cap surface, almost not friction possesses quiet effect between them, and service time is of a specified duration, also can not damage retaining ring, waterproof effect is splendid.
Claims (4)
1. novel retaining ring of electrical micro-machine, it is characterized in that: it comprises bakelite plate and rubber ring, and an end and the rubber ring of bakelite plate are bonded together, and the internal diameter of rubber ring is littler than the internal diameter of bakelite plate, and whole retaining ring is sleeved on the machine shaft.
2. the novel retaining ring of a kind of electrical micro-machine according to claim 1 is characterized in that: the internal diameter of rubber ring is than the little 0.2mm～0.3mm of internal diameter of bakelite plate.
3. the novel retaining ring of a kind of electrical micro-machine according to claim 1 and 2 is characterized in that: bakelite plate adopts cloth matter bakelite plate.
4. the novel retaining ring of a kind of electrical micro-machine according to claim 1 and 2, it is characterized in that: rubber ring is made by acrylonitrile-butadiene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201246932U CN201690286U (en) | 2010-02-26 | 2010-02-26 | Novel water fender for micromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201246932U CN201690286U (en) | 2010-02-26 | 2010-02-26 | Novel water fender for micromotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201690286U true CN201690286U (en) | 2010-12-29 |
Family
ID=43378563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201246932U Expired - Lifetime CN201690286U (en) | 2010-02-26 | 2010-02-26 | Novel water fender for micromotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201690286U (en) |
-
2010
- 2010-02-26 CN CN2010201246932U patent/CN201690286U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101229 |