CN203477090U - Special bearing provided with oil seal for hydraulic motor - Google Patents
Special bearing provided with oil seal for hydraulic motor Download PDFInfo
- Publication number
- CN203477090U CN203477090U CN201320597524.4U CN201320597524U CN203477090U CN 203477090 U CN203477090 U CN 203477090U CN 201320597524 U CN201320597524 U CN 201320597524U CN 203477090 U CN203477090 U CN 203477090U
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- CN
- China
- Prior art keywords
- bearing
- sealing
- oil
- wall
- outer ring
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- 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
- 238000007789 sealing Methods 0.000 claims abstract description 71
- 239000003921 oil Substances 0.000 abstract description 44
- 239000010720 hydraulic oil Substances 0.000 abstract description 5
- 238000005096 rolling process Methods 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 7
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a special bearing provided with an oil seal for a hydraulic motor. The special bearing comprises a bearing body which comprises a bearing inner ring, a bearing outer ring, a retainer and a plurality of rolling balls, wherein the rolling balls are arranged between the bearing outer ring and the bearing inner ring by the retainer; the special bearing also comprises the oil seal; the oil seal comprises an oil seal framework and an oil seal body fixedly arranged on the oil seal framework; a sealing outer lip and a sealing inner lip are convexly arranged on the inner side of the oil seal body; the sealing body is matched with the outer side wall of the bearing outer ring in a sealing way; the sealing outer lip extends to an outer ring matching wall and is in clearance fit with the outer ring matching wall; the sealing inner lip extends to an inner ring matching wall and is in interference fit with the inner ring matching wall; a tightening spring used for fixing the sealing inner lip on the inner ring matching wall in a tightening way is arranged on the outer side of the sealing inner lip. The special bearing has the advantages that the problems of oil leakage of the hydraulic motor of an automobile and overhigh temperature rise of the bearing can be solved; furthermore, the hydraulic oil in the hydraulic motor of the automobile is effectively prevented from invading into the bearing, so that the service life of the bearing is greatly prolonged, etc.
Description
Technical field
The utility model belongs to field of bearings, specifically refers to the oil hydraulic motor special bearing with oil sealing.
Background technique
The bearing of automobile hydraulic motor and the mounting structure of oil sealing are to adopt the mode shown in Fig. 1 at present.Bearing 3 ' is installed in series in automobile hydraulic motor by transmission shaft 2 ' with oil sealing 1 ', between oil sealing 1 ' and transmission shaft 2 ' periphery, interference fit is installed, oil sealing 1 ' causes noise with the sliding friction of transmission shaft 2 ' cylindrical, the oil hydraulic motor temperature rise that the sliding friction meeting of oil sealing 1 ' and transmission shaft 2 ' cylindrical causes is simultaneously too high, in addition, in the working environment of automobile hydraulic motor, hydraulic oil is more, and the structure of traditional oil sealing very easily causes that hydraulic oil enters bearing inside and causes bearing failure.
Summary of the invention
The purpose of this utility model is the shortcoming and defect existing in order to overcome prior art, and provide, a kind of to solve oil hydraulic motor temperature rise too high and effectively prevent that hydraulic oil from invading the problem of bearing inside, and the little oil hydraulic motor special bearing with oil sealing of operation noise.
For achieving the above object, the technical solution of the utility model is to include bearing body, described bearing body includes bearing inner race, bearing outer ring, retainer and some spin, described spin is arranged between bearing outer ring and bearing inner race through retainer, also include oil sealing, described oil sealing includes oil tight skeleton and is fixedly installed in the oil sealing body on oil tight skeleton, outer ring is set respectively on the opposing side of described bearing outer ring and the same side of the relative spin of bearing inner race coordinates wall and inner ring to coordinate wall, the inner bulge of described oil sealing body is provided with sealing outer lip and sealing epipharynx, described seal body and the outer side wall of bearing outer ring are sealed and matched, described sealing outer lip extends to outer ring and coordinates on wall and coordinate wall Spielpassung with outer ring, described sealing epipharynx extends to inner ring and coordinates on wall and coordinate wall interference fit with inner ring, the arranged outside of described sealing epipharynx is useful on sealing epipharynx lock ring is fixed on to the lock ring spring on inner ring cooperation wall.
By this setting, oil sealing sealing is arranged at a side of bearing, form one side contact seal formula sealing configuration, compared to prior art, oil sealing not with the coordinating of transmission shaft, reduced the sliding friction area of oil sealing and transmission shaft cylindrical, reduced the noise causing because of sliding friction, reduced simultaneously oil sealing and transmission shaft cylindrical because of the oil hydraulic motor temperature rise that sliding friction causes too high, the sealing outer lip of oil sealing coordinates Spielpassung between wall with the outer ring of outer ring, the requirement of high speed rotary motion while having guaranteed bearing working.
Further arranging is the lock ring spring locating slot that the arranged outside of described sealing epipharynx has arc.By this setting, this lock ring spring locating slot makes the accurate positioning of lock ring spring reliable, better sealing epipharynx lock ring is fixed on to inner ring and coordinates on wall, forms interference fit.
Further arrange is that described inner ring coordinates on wall and is provided with low groove.By this setting, sealing epipharynx is placed in this low groove at lock ring camber of spring, has ensured that sealing epipharynx coordinates magnitude of interference enough between wall with inner ring.
Further arranging is that described outer ring coordinates the inner of wall to be provided with upper groove, is provided with the protruding lip of and Spielpassung clamped with this upper groove on described sealing outer lip.By this setting, not only ensured that oil sealing is positioned at the stability in bearing outside, and ensured that sealing outer lip coordinates the Spielpassung of wall with outer ring.
Eventually the above, the utility model has the advantages that: solve automobile hydraulic motor leakage of oil and the too high problem of bearing temperature rise, and can effectively prevent that in automobile hydraulic motor, hydraulic oil is invaded bearing inside, greatly improved the working life of bearing, this structure is little at oil hydraulic motor special bearing running noise, and structure arranges compactness, has reduced oil hydraulic motor volume, both saved the cost of manufacturing hydraulic motor casing, again to small volume epoch essential step of marching toward.
Below in conjunction with specification drawings and specific embodiments, the utility model is described further.
Accompanying drawing explanation
Automobile hydraulic motor oil sealing and bearing structure that Fig. 1 is traditional arrange figure;
Fig. 2 the utility model embodiment structure is partly cutd open figure;
Fig. 3 the utility model partial structurtes coordinate schematic diagram.
Embodiment
Below by embodiment, the utility model is specifically described, only for the utility model is further described, can not be interpreted as the restriction to the utility model protection domain.
Embodiment of the present utility model as Figure 1-3, include bearing body, described bearing body includes bearing inner race 1, bearing outer ring 2, retainer 3 and some spin 4, described spin 4 is arranged between bearing outer ring and bearing inner race through retainer 3, retainer described in the present embodiment preferably adopts nylon retainer, and described spin 4 is preferably stainless steel steel ball.In addition, the present embodiment also includes oil sealing, described oil sealing includes oil tight skeleton 51 and is fixedly installed in the oil sealing body 52 on oil tight skeleton, outer ring is set respectively on the opposing side of the same side of described bearing outer ring 2 spin 4 relative to bearing inner race 1 coordinates wall 21 and inner ring to coordinate wall 11, the inner bulge of described oil sealing body 52 is provided with sealing outer lip 521 and sealing epipharynx 522, described seal body 52 is sealed and matched with the outer side wall of bearing outer ring 2, described sealing outer lip 521 extends to outer ring and coordinates on wall 21 and coordinate wall 21 Spielpassung with outer ring, described sealing epipharynx 522 extends to inner ring and coordinates on wall 11 and coordinate wall interference fit with inner ring, the arranged outside of described sealing epipharynx 522 is useful on sealing epipharynx 522 lock rings is fixed on to the lock ring spring 523 on inner ring cooperation wall 11.
The arranged outside of the sealing epipharynx 522 described in the present embodiment has the lock ring spring locating slot 5221 of arc, on described inner ring cooperation wall 11, is provided with low groove 111, and the position of this low groove 111 is corresponding with the fixed position of lock ring spring 523.
In addition, the outer ring described in the present embodiment coordinates the inner of wall 21 to be provided with upper groove 211, is provided with the protruding lip 5211 of and Spielpassung clamped with this upper groove 211 on described sealing outer lip 521.
Claims (4)
1. the oil hydraulic motor special bearing with oil sealing, include bearing body, described bearing body includes bearing inner race, bearing outer ring, retainer and some spin, described spin is arranged between bearing outer ring and bearing inner race through retainer, it is characterized in that: also include oil sealing, described oil sealing includes oil tight skeleton and is fixedly installed in the oil sealing body on oil tight skeleton, outer ring is set respectively on the opposing side of described bearing outer ring and the same side of the relative spin of bearing inner race coordinates wall and inner ring to coordinate wall, the inner bulge of described oil sealing body is provided with sealing outer lip and sealing epipharynx, described seal body and the outer side wall of bearing outer ring are sealed and matched, described sealing outer lip extends to outer ring and coordinates on wall and coordinate wall Spielpassung with outer ring, described sealing epipharynx extends to inner ring and coordinates on wall and coordinate wall interference fit with inner ring, the arranged outside of described sealing epipharynx is useful on sealing epipharynx lock ring is fixed on to the lock ring spring on inner ring cooperation wall.
2. a kind of oil hydraulic motor special bearing with oil sealing according to claim 1, is characterized in that: the arranged outside of described sealing epipharynx has the lock ring spring locating slot of arc.
3. a kind of oil hydraulic motor special bearing with oil sealing according to claim 1, is characterized in that: on described inner ring cooperation wall, be provided with low groove.
4. a kind of oil hydraulic motor special bearing with oil sealing according to claim 1, is characterized in that: described outer ring coordinates the inner of wall to be provided with upper groove, is provided with the protruding lip of and Spielpassung clamped with this upper groove on described sealing outer lip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320597524.4U CN203477090U (en) | 2013-09-23 | 2013-09-23 | Special bearing provided with oil seal for hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320597524.4U CN203477090U (en) | 2013-09-23 | 2013-09-23 | Special bearing provided with oil seal for hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477090U true CN203477090U (en) | 2014-03-12 |
Family
ID=50225424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320597524.4U Expired - Fee Related CN203477090U (en) | 2013-09-23 | 2013-09-23 | Special bearing provided with oil seal for hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477090U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757749A (en) * | 2018-07-17 | 2018-11-06 | 安徽南方化工泵业有限公司 | A kind of labyrinth oil-sealing arrangement for High-temperature Magnetic Pump bearing housing |
| CN113819144A (en) * | 2021-09-26 | 2021-12-21 | 珠海格力电器股份有限公司 | Bearing retainer, rolling ball bearing and motor |
-
2013
- 2013-09-23 CN CN201320597524.4U patent/CN203477090U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757749A (en) * | 2018-07-17 | 2018-11-06 | 安徽南方化工泵业有限公司 | A kind of labyrinth oil-sealing arrangement for High-temperature Magnetic Pump bearing housing |
| CN113819144A (en) * | 2021-09-26 | 2021-12-21 | 珠海格力电器股份有限公司 | Bearing retainer, rolling ball bearing and motor |
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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: 20140312 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |