CN202531649U - Sliding bearing compensating structure suitable for high temperature condition - Google Patents
Sliding bearing compensating structure suitable for high temperature condition Download PDFInfo
- Publication number
- CN202531649U CN202531649U CN2012200671587U CN201220067158U CN202531649U CN 202531649 U CN202531649 U CN 202531649U CN 2012200671587 U CN2012200671587 U CN 2012200671587U CN 201220067158 U CN201220067158 U CN 201220067158U CN 202531649 U CN202531649 U CN 202531649U
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- Prior art keywords
- bearing
- high temperature
- protecting jacket
- sliding bearing
- temperature condition
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Abstract
The utility model relates to a sliding bearing compensating structure suitable for a high temperature condition, which comprises a bearing sleeve, a bearing bush and a bearing base, and is characterized in that: a protecting jacket is arranged on the exterior of the bearing bush; the bearing base is arranged on the exterior of the protecting jacket; grooves are uniformly distributed on an inner wall of the bearing base along circumference direction; the grooves pass through the bearing base along the axial direction; springs are arranged in the grooves; and one ends of the spring are butted against the protecting jacket while the other ends are butted in the grooves. The sliding bearing compensating structure has the characteristics that the structure is simple; the shock resistance is increased; the tensile force of the springs is utilized to keep the bearing sleeve and the bearing bush under coaxial state under the high temperature condition; no abrasion is generated; the service life of the sliding bearing compensating structure is prolonged; and the safe, reliable and stable running of a pump is ensured.
Description
Technical field
The utility model relates to a kind of bearing part, particularly is adapted at carrying the sliding bearing collocation structure that uses on the Under Water Pumps of high temperature media.
Background technique
In chemical industry, to carry high temperature and contain the Under Water Pumps of abrasion particulate matter medium, its sliding bearing is to be made up of cemented carbide bearing housing carbofrax material bearing sleeve and the bearing support outer with being arranged on bearing housing.This sliding bearing uses under high temperature condition, because the parts thermal expansion amount of different materials is different, between parts, can produce certain clearance; Influence the coaxality between parts, be easy to generate off-centre, the heavy wear bearing; Simultaneously; The thermal shock that pumped medium produces also can cause the SiC bearing lining cracked, causes the damage of Under Water Pumps, influences the normal operation of pump.
Summary of the invention
The utility model is exactly to the problems referred to above, provides a kind of and is used to protect bearing sleeve, and make between bearing housing and the bearing sleeve and under high temperature condition, still can keep coaxial high temperature to use the sliding bearing collocation structure.
For realizing above-mentioned purpose, the utility model adopts following technological scheme, and a kind of high temperature is used the sliding bearing collocation structure; Comprise bearing housing, be located at bearing housing outer bearing sleeve and bearing support, it is characterized in that the bearing sleeve outside is provided with protecting jacket, the protecting jacket outside is provided with bearing support; The bearing support inwall is along circumferentially being evenly distributed with groove; Groove axially connects along bearing support, is provided with an end in the groove and is against on the protecting jacket, and the other end is against the spring in the groove.
Described bearing sleeve and protecting jacket are mounted to one through interference fit.
Described protecting jacket adopts the invar alloy material to process.
Described spring is that cross section is the spring of Z type.
The sliding bearing collocation structure that the utility model provides is that to have increased expansion coefficient in the outside of SiC bearing lining roughly the same; And the invar alloy protecting jacket of good mechanical property, strong shock resistance; Protection SiC bearing lining prevents that externally impact loading lower bearing lining is cracked.Utilize simultaneously to be evenly distributed on the gap that tension compensating that the outside spring of protecting jacket produces forms between high temperature condition lower bearing sleeve and bearing sleeve, make between bearing housing and the bearing sleeve to keep coaxial, guarantee the operation of Under Water Pumps continous-stable.
The characteristics of the utility model are: simple in structure, improved impact resistance, and utilize the tension force of spring to make bearing housing and bearing sleeve under high temperature condition, still can keep coaxial, can not produce wearing and tearing, along the long life, guarantee the safe and reliable smooth running of pump.
Description of drawings
Fig. 1 is the schematic cross-section of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be further described:
As shown in Figure 1, high temperature is to be made up of the bearing housing 2, bearing sleeve 3, protecting jacket 4 and the bearing support 5 that are arranged on the pump shaft 1 with the sliding bearing collocation structure, and bearing sleeve is mounted to one with outside protecting jacket through interference fit.Bearing sleeve adopts carbofrax material to process, and protecting jacket adopts the invar alloy material to process.The bearing support inwall is along circumferentially being evenly distributed with 4 grooves 6 that axially connect, and being provided with cross section in the groove is the spring 7 of Z type, and an end face of spring is against on the protecting jacket, and the other end is against on the groove floor.
During Under Water Pumps work, carry high temperature media, bearing housing, bearing sleeve, protecting jacket, bearing support are produced expand, because the material of these parts is different, expansion coefficient is also different.Through increasing the approaching protecting jacket of expansion coefficient in that bearing sleeve is outside, thereby make bearing sleeve avoid thermal shock.Simultaneously, utilize to be arranged on Z type spring between protecting jacket and the bearing support, the bloated difference of the line that produces between compensation protecting jacket and the bearing support is the gap, prevents rocking of bearing sleeve, keeps bearing sleeve coaxial with bearing housing, guarantees the normal operation of Under Water Pumps.
Claims (4)
1. a high temperature is used the sliding bearing collocation structure; Comprise bearing housing, be arranged on bearing housing outside bearing sleeve and bearing support, it is characterized in that the bearing sleeve outside is provided with protecting jacket, the protecting jacket outside is provided with bearing support; The bearing support inwall is along circumferentially being evenly distributed with groove; Groove axially connects along bearing support, is provided with an end in the groove and is against on the protecting jacket, and the other end is against the spring in the groove.
2. high temperature according to claim 1 is used the sliding bearing collocation structure, it is characterized in that bearing sleeve and protecting jacket are mounted to one through interference fit.
3. high temperature according to claim 1 is used the sliding bearing collocation structure, it is characterized in that described protecting jacket adopts the invar alloy material to process.
4. high temperature according to claim 1 is used the sliding bearing collocation structure, it is characterized in that described spring is that cross section is the spring of Z type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200671587U CN202531649U (en) | 2012-02-26 | 2012-02-26 | Sliding bearing compensating structure suitable for high temperature condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200671587U CN202531649U (en) | 2012-02-26 | 2012-02-26 | Sliding bearing compensating structure suitable for high temperature condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531649U true CN202531649U (en) | 2012-11-14 |
Family
ID=47132837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200671587U Expired - Fee Related CN202531649U (en) | 2012-02-26 | 2012-02-26 | Sliding bearing compensating structure suitable for high temperature condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221724A (en) * | 2015-11-02 | 2016-01-06 | 重庆御捷汽车部件有限公司 | With the vehicle manual gearshift of antifriction drag-line and automatic anti-backlash bearing |
-
2012
- 2012-02-26 CN CN2012200671587U patent/CN202531649U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221724A (en) * | 2015-11-02 | 2016-01-06 | 重庆御捷汽车部件有限公司 | With the vehicle manual gearshift of antifriction drag-line and automatic anti-backlash bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20160226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |