CN201963883U - Speed changer oil seal with oil return groove structure - Google Patents
Speed changer oil seal with oil return groove structure Download PDFInfo
- Publication number
- CN201963883U CN201963883U CN2010206657921U CN201020665792U CN201963883U CN 201963883 U CN201963883 U CN 201963883U CN 2010206657921 U CN2010206657921 U CN 2010206657921U CN 201020665792 U CN201020665792 U CN 201020665792U CN 201963883 U CN201963883 U CN 201963883U
- Authority
- CN
- China
- Prior art keywords
- oil
- speed changer
- oil seal
- seal
- lug bosses
- 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
- 210000002356 Skeleton Anatomy 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 12
- 239000003921 oil Substances 0.000 abstract description 46
- 210000000088 Lip Anatomy 0.000 abstract description 10
- 239000012208 gear oil Substances 0.000 abstract description 7
- 238000005461 lubrication Methods 0.000 abstract 1
- 230000002093 peripheral Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 1
- 230000001050 lubricating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003319 supportive Effects 0.000 description 1
Abstract
The utility model relates to a speed changer oil seal, in particular to a speed changer oil seal with an oil return groove structure. The speed changer oil seal is characterized by comprising a rubber body, an oil seal skeleton, a plurality of lug bosses and an oil seal spring. The speed changer oil seal is characterized in that the lug bosses are arranged on the rubber body, the numbers of the lug bosses along the peripheral direction are 4-12, the widths a of the lug bosses are 4-15mm, the chord lengths b among the lug bosses are 6-20mm, the heights c of the lug bosses are 0.5-3mm, and the thicknesses d of the lug bosses are 0.8-3mm. The speed changer oil seal has the advantages that an oil inlet groove and an oil return groove are arranged on a product structure, and that the gear oil is provided with a return circuit, so that the lubrication of the axial oil seal lip is guaranteed, and the overmuch oil can not be accumulated at the seal lip to prevent the oil from being leaked under the action of pressure. Therefore, the speed changer oil seal is good in seal, and energy sources-saving.
Description
Technical field: the utility model relates to the speed changer oil sealing, is specially a kind of speed changer oil sealing of taking back tank structure.
Background technique: domestic existing speed changer oil sealing product upper and lower end face and housing contact position are the plane, the gear oil that splashes in gearbox is difficult to enter into the oil seal lip position by outer race (outer race is that interference fit is connected with housing), oil can enter into oil sealing master lip position by bearing inner ring, and in speed changer because the friction of movement parts, speed changer can produce certain heat, normal speed change device operating temperature should be higher 38 ℃ than ambient temperature～and 40 ℃, heat can make the gearbox internal pressure be higher than atmospheric pressure, and lubricating under action of pressure of oil seal lip position causes leakage.
Summary of the invention: the purpose of this utility model provides a kind of a kind of speed changer oil sealing of taking back tank structure simple in structure, with low cost, oil tight.The purpose of this utility model is achieved in that it includes rubber body, oil tight skeleton, projection, oil seal spring, it is characterized in that: rubber body is provided with projection, projection circumferencial direction quantity is 4-12, ledge width a is 4-15mm, chord length b is 6-20mm between adjacent protrusion, height of projection c is 0.5-3mm, and projection thickness d is 0.8-3mm.The utility model has the advantages that: on product structure, offered oil-feed tank and oil-return groove, made gear oil that a loop be arranged, both guaranteed the lubricated of shafting oil envelope lip, also can not accumulate too much oil, made oil seepage under pressure at lip.Thereby realized the good sealing of speed changer oil sealing, saved the energy again.
Description of drawings: Fig. 1 is the utility model structural principle generalized section; Fig. 2 is the left view of the utility model structural principle schematic representation Fig. 1; Fig. 3 is the A place enlarged diagram of the utility model structural principle schematic representation Fig. 2; Fig. 4 is the B place enlarged diagram of the utility model structural principle schematic representation Fig. 1.
Embodiment: it includes rubber body 1, oil tight skeleton 2, projection 3, oil seal spring 4.Rubber body 1 is provided with projection 3, and protruding circumferencial direction quantity is 4-12, and ledge width a is 4-15mm, and 3 chord length b of adjacent protrusion are 6-20mm, and projection 3 height c are 0.5-3mm, and protruding 3 thickness d are 0.8-3mm.
Principle of the present utility model: rubber body-provide enough elasticity and sealings, oil tight skeleton-oil seal body is played a supportive role, the return flow line of projection-gear oil, oil seal spring-provide the power of tightening to oil seal lip.Offer several projectioies in the oil seal body lower end surface, several oil return grooves are arranged between projection.Offer filler opening and spill port on gear box casing, groove is relative between hole and oil sealing projection, and gear oil can enter in the oil seal body by oil inlet hole and flow out from oil outlet more like this, participates in the exchange of the gear oil of whole gearbox.Gear oil recycles, and has both guaranteed that oil seal lip is lubricated, also can not accumulate too much oil at lip, makes oil seepage under pressure.Thereby realized the good sealing of speed changer oil sealing, saved the energy again.
Claims (1)
1. speed changer oil sealing of taking back tank structure, it includes rubber body, oil tight skeleton, projection, oil seal spring, it is characterized in that: rubber body is provided with projection, projection circumferencial direction quantity is 4-12, ledge width a is 4-15mm, chord length b is 6-20mm between adjacent protrusion, and height of projection c is 0.5-3mm, and projection thickness d is 0.8-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206657921U CN201963883U (en) | 2010-12-17 | 2010-12-17 | Speed changer oil seal with oil return groove structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206657921U CN201963883U (en) | 2010-12-17 | 2010-12-17 | Speed changer oil seal with oil return groove structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963883U true CN201963883U (en) | 2011-09-07 |
Family
ID=44526419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206657921U Expired - Fee Related CN201963883U (en) | 2010-12-17 | 2010-12-17 | Speed changer oil seal with oil return groove structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963883U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090008A (en) * | 2013-01-25 | 2013-05-08 | 徐利阳 | Rotary seal lip type seal ring assembly for rotating shaft |
-
2010
- 2010-12-17 CN CN2010206657921U patent/CN201963883U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090008A (en) * | 2013-01-25 | 2013-05-08 | 徐利阳 | Rotary seal lip type seal ring assembly for rotating shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20111217 |