CN202708074U - Oil leakage-proof spiral seal structure for sliding bearing - Google Patents
Oil leakage-proof spiral seal structure for sliding bearing Download PDFInfo
- Publication number
- CN202708074U CN202708074U CN 201220378097 CN201220378097U CN202708074U CN 202708074 U CN202708074 U CN 202708074U CN 201220378097 CN201220378097 CN 201220378097 CN 201220378097 U CN201220378097 U CN 201220378097U CN 202708074 U CN202708074 U CN 202708074U
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- CN
- China
- Prior art keywords
- sliding bearing
- shaft
- axle
- external thread
- bearing
- 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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Abstract
The utility model discloses an oil leakage-proof spiral seal structure for a sliding bearing. The sliding bearing consists of a shaft and the sliding bearing matched with the shaft, wherein the shaft is provided with an external thread at a fitting surface between the shaft and a bearing inner cover, and a clearance is left between the external thread and the bearing inner cover. According to the oil leakage-proof spiral seal structure for the sliding bearing, at the fitting surface between the shaft and the bearing inner cover, the external thread is machined on the shaft or an external thread bushing is arranged on the shaft, and the clearance is left between the external thread and the bearing inner cover. In running process of a motor, the external thread or the installed external thread bushing on the shaft can push the ambient air to the interior of the bearing, oil mist can not enter the interior of the motor by crossing the seal ring and the clearance between the bearing inner cover and the shaft, thereby solving the oil leakage problem of the sliding bearing.
Description
Technical field
The utility model relates to a kind of sliding bearing oil-leakage-prevention spiral seal structure.
Background technique
The sliding bearing motor of traditional design, when motor moves, because the running of the rotating machinerys such as motor internal fan, at the inboard negative pressuren zone (air pressure that namely should the zone is lower than the air pressure of outside motor) that forms of sliding bearing, the mist of oil of bearing inside is under the effect of negative pressure, the gap of crossing between seal ring, internal bearing cover and the axle enters motor internal, forms oil droplet after the condensation, produces the sliding bearing oil leakage phenomenon.
There is following shortcoming in existing structure:
1. waste resource;
2. befouling environment.
Summary of the invention
The utility model purpose is for the existing deficiency of prior art, and a kind of sliding bearing oil-leakage-prevention spiral seal structure is provided, and it can effectively avoid the sliding bearing leakage of oil, economize on resources, and reduction is to the pollution of environment.
In order to solve these problems of the prior art, the technological scheme that the utility model provides is:
A kind of sliding bearing oil-leakage-prevention spiral seal structure, described sliding bearing comprises axle and the sliding bearing that matches with axle, described axle is provided with outside thread at the fitting surface place of this axle and internal bearing cover, leaves the gap between described outside thread and the internal bearing cover.
In addition, the outside thread on the described axle can adopt at axle the external thread sleeve replacement is installed.
Than solution of the prior art, the utility model advantage is:
The described sliding bearing oil-leakage-prevention of the utility model spiral seal structure, it is by at axle and internal bearing cover fitting surface place, and threading or external thread sleeve is installed at axle on axle leaves the gap between outside thread and the internal bearing cover.In the motor operation course, the outside thread on the axle or the external thread sleeve of installing are pushed ambient air to bearing inside, and the gap that mist of oil just can not be crossed between seal ring, internal bearing cover and the axle enters motor internal, thereby solve the sliding bearing Leakage.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the utility model embodiment's structural representation;
Wherein: 1, axle; 2, bearing; 3, outside thread.
Embodiment
Below in conjunction with specific embodiment such scheme is described further.Should be understood that these embodiments are not limited to limit the scope of the invention for explanation the present invention.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in the normal experiment.
Embodiment:
A kind of sliding bearing oil-leakage-prevention spiral seal structure, described sliding bearing comprises axle 1 and the sliding bearing 2 that matches with axle 1, described axle 1 is provided with outside thread 3 at the fitting surface place of this axle 1 and bearing 2 inner caps, leaves the gap between described outside thread 3 and bearing 2 inner caps.
In addition, the outside thread 3 on the described axle can adopt at axle the external thread sleeve replacement is installed, and the remaining part structure is identical with above-described embodiment content.
Above-mentioned example only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the people who is familiar with technique can understand content of the present invention and according to this enforcement, can not limit protection scope of the present invention with this.All equivalent transformations that Spirit Essence is done according to the present invention or modification all should be encompassed within protection scope of the present invention.
Claims (2)
1. sliding bearing oil-leakage-prevention spiral seal structure, described sliding bearing comprises axle and the sliding bearing that matches with axle, it is characterized in that, described axle is provided with outside thread at the fitting surface place of this axle and internal bearing cover, leaves the gap between described outside thread and the internal bearing cover.
2. sliding bearing oil-leakage-prevention spiral seal structure according to claim 1 is characterized in that, the outside thread on the described axle can adopt at axle the external thread sleeve replacement is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220378097 CN202708074U (en) | 2012-07-31 | 2012-07-31 | Oil leakage-proof spiral seal structure for sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220378097 CN202708074U (en) | 2012-07-31 | 2012-07-31 | Oil leakage-proof spiral seal structure for sliding bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708074U true CN202708074U (en) | 2013-01-30 |
Family
ID=47588380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220378097 Expired - Lifetime CN202708074U (en) | 2012-07-31 | 2012-07-31 | Oil leakage-proof spiral seal structure for sliding bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202708074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555422A (en) * | 2020-11-02 | 2021-03-26 | 中国长江电力股份有限公司 | Self-pumping self-adjusting infinite circulation sealing system and using method |
-
2012
- 2012-07-31 CN CN 201220378097 patent/CN202708074U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555422A (en) * | 2020-11-02 | 2021-03-26 | 中国长江电力股份有限公司 | Self-pumping self-adjusting infinite circulation sealing system and using method |
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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: 20130130 |