CN106594242B - Dustproof structure at interface of driving shaft and speed changer - Google Patents
Dustproof structure at interface of driving shaft and speed changer Download PDFInfo
- Publication number
- CN106594242B CN106594242B CN201611259983.6A CN201611259983A CN106594242B CN 106594242 B CN106594242 B CN 106594242B CN 201611259983 A CN201611259983 A CN 201611259983A CN 106594242 B CN106594242 B CN 106594242B
- Authority
- CN
- China
- Prior art keywords
- oil seal
- driving shaft
- dust
- dustproof
- cover
- 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.)
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Links
- 239000000428 dust Substances 0.000 claims abstract description 62
- 230000005540 biological transmission Effects 0.000 claims abstract description 35
- 230000000694 effects Effects 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 3
- 238000004073 vulcanization Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 abstract description 16
- 239000003921 oil Substances 0.000 description 82
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The invention is suitable for the field of automobile driving shafts, and provides a dustproof structure at a driving shaft and transmission interface, which comprises a gearbox, a driving shaft interface arranged on the gearbox, a detachable transmission oil seal arranged on the driving shaft interface, a driving shaft connected with the gearbox through the gearbox oil seal and the driving shaft interface, and a detachable dustproof cover arranged on the driving shaft, wherein the transmission oil seal comprises an oil seal body, a first oil seal dustproof cover arranged on the outer side of the oil seal body and playing a dustproof role, a second oil seal dustproof cover arranged on one end of the oil seal body and playing a dustproof role, and an oil seal lip arranged on the inner side of the oil seal body. The technical problem that external sand and dust enter the transmission output port to damage the oil seal lip and then cause the risk of oil leakage of the transmission output port is solved.
Description
Technical Field
The invention belongs to the field of automobile driving shafts, and particularly relates to a dustproof structure at an interface of a driving shaft and a transmission.
Background
The power output port of the automobile transmission is assembled with the driving shaft, and an oil seal is arranged at the transmission output port to prevent lubricating oil in the transmission from leaking. Therefore, a dust-proof structure is required to be designed to protect the oil seal from damage.
Currently, the transmission adopts more oil seal structures as shown in fig. 1. The oil seal is not provided with a dust cover, and is sleeved with the dust cover for dust prevention by designing the metal dust cover on the driving shaft. The dustproof effect of this kind of structure is not good enough, and the part that the shield acted on mostly designs into cylindrically, is parallel with the axis of oil blanket and axle from the cross-section, and dustproof effect is poor, and dust and sand slide into the oil blanket easily, probably appear the oil blanket and damage the trouble then.
Disclosure of Invention
The invention aims to provide a dustproof structure at an interface of a driving shaft and a transmission, and aims to solve the technical problem that external sand enters an output port of the transmission, an oil seal lip is damaged, and then the risk of oil leakage of the output port of the transmission is caused.
The invention discloses a dustproof structure at a joint of a driving shaft and a speed changer, which comprises a speed changer, a driving shaft joint arranged on the speed changer, a detachable speed changer oil seal arranged on the driving shaft joint, a driving shaft connected with the speed changer through the speed changer oil seal and the driving shaft joint, and a detachable dustproof cover arranged on the driving shaft, wherein the speed changer oil seal comprises an oil seal body, a first oil seal dustproof cover arranged on the outer side of the oil seal body and playing a dustproof role, a second oil seal dustproof cover arranged at one end of the oil seal body and playing a dustproof role, and an oil seal lip arranged on the inner side of the oil seal body.
The invention further adopts the technical scheme that: the connecting end of the first oil seal dust cover is connected with the oil seal body, the section of the connecting end is of a U-shaped structure, and the free end of the first oil seal dust cover is provided with an outwardly extending cover guard ring.
The invention further adopts the technical scheme that: the connecting end of the second oil seal dust cover is connected with one end of the oil seal body, the section of the connecting end is of a U-shaped structure, and the free end of the second oil seal dust cover is folded towards the inner side of the oil seal body and is matched with the driving shaft.
The invention further adopts the technical scheme that: the connecting end of the oil seal lip is connected with the inner side of the oil seal body, and the free end of the oil seal lip is folded towards the inner side of the oil seal body and matched with the driving shaft.
The invention further adopts the technical scheme that: the dust cover is U-shaped, and the connecting end of the dust cover is assembled with the driving shaft in an interference mode.
The invention further adopts the technical scheme that: the free end of the dust cover is provided with an inclined plane.
The invention further adopts the technical scheme that: the oil seal body, the first oil seal dust cover, the second oil seal dust cover and the oil seal lip are integrally vulcanized and formed.
The beneficial effects of the invention are as follows: the scheme adopts a novel structure of the transmission oil seal, and has a certain dustproof effect. In addition, the novel structure dust cover is matched, and the novel structure dust cover are matched for use, so that the dust-proof effect is good. The effect that sand dust enters and damages the oil seal can be achieved.
Drawings
FIG. 1 is a schematic illustration of a conventional transmission employing a larger number of oil seals according to an embodiment of the present invention;
FIG. 2 is a block diagram of a dust protection arrangement at the interface of a drive shaft and a transmission provided in accordance with an embodiment of the present invention;
FIG. 3 is a block diagram of a transmission oil seal of a dustproof construction at a drive shaft and transmission interface provided in an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a transmission seal of a dustproof construction at a drive shaft and transmission interface provided in an embodiment of the present invention;
FIG. 5 is a block diagram of a drive shaft dust cover of a dust arrangement at a drive shaft and transmission interface provided in accordance with an embodiment of the present invention;
fig. 6 is a cross-sectional view of a drive shaft dust cap of a dust guard structure at the interface of the drive shaft and the transmission, according to an embodiment of the present invention.
Detailed Description
Reference numerals: 1-gearbox 2-drive shaft interface 3-transmission oil seal 4-drive shaft 5-dust cover 6-first oil seal dust cover 7-cover retainer 8-oil seal body 9-second oil seal dust cover 10-oil seal lip 11-inclined plane
Fig. 2-6 show a dustproof structure at the interface of a driving shaft and a transmission, which comprises a gearbox 1, a driving shaft interface 2 arranged on the gearbox 1, a detachable transmission oil seal 3 arranged on the driving shaft interface 2, a driving shaft 4 connected with the gearbox 1 through the gearbox oil seal 3 and the driving shaft interface 2, and a detachable dustproof cover 5 arranged on the driving shaft 4, wherein the transmission oil seal 3 comprises an oil seal body 8, a first oil seal dustproof cover 6 arranged outside the oil seal body 8 and playing a dustproof role, a second oil seal dustproof cover 9 arranged at one end of the oil seal body 8 and playing a dustproof role, and an oil seal lip 10 arranged at the inner side of the oil seal body 8. The transmission oil seal 3 with a new structure is combined with the dust cover 5 to effectively prevent sand and dust from entering, so that the transmission oil seal 3 is effectively protected.
The connecting end of the first oil seal dust cover 6 is connected with the oil seal body 8, the section of the connecting end is of a U-shaped structure, and the free end of the first oil seal dust cover 6 is provided with a cover guard ring 7 extending outwards. The first oil seal dust cover 6 is designed into a U-shaped structure, so that the falling sand and dust can be prevented from sliding into the transmission oil seal 3 outside, and the cover guard ring 7 is arranged for covering the interface of the transmission oil seal 3 to prevent the sand and dust from entering from the interface of the transmission oil seal 3 and the driving shaft interface 2.
The link of second oil blanket shield 9 with the one end of oil blanket body 8 is connected and the cross-section is "U" type structure, the free end of second oil blanket shield 9 towards the oil blanket body 8 inboard draws in and with drive shaft 4 assorted. The second oil seal dust cover 9 is designed into a U-shaped structure, so that sand and dust at the positions of the transmission oil seal 3 and the driving shaft 4 can slide off, and the inner side of the second oil seal dust cover 9 is folded and matched with the driving shaft 4, so that the sand and dust are effectively prevented from entering from the interface of the transmission oil seal 3 and the driving shaft 4.
The connecting end of the oil seal lip 10 is connected with the inner side of the oil seal body 8, and the free end of the oil seal lip 10 is folded towards the inner side of the oil seal body 8 and matched with the driving shaft. The adoption of the oil seal lip 10 enables the interface between the oil seal lip 10 and the driving shaft 4 to be sealed, and sand and dust are prevented from entering more effectively.
The dust cover 5 is U-shaped, and the connecting end of the dust cover 5 is assembled with the driving shaft 4 in an interference mode. The "U" shape is used in order that dust and sand will not deposit on the dust cap 5, and the contact surface with the drive shaft 4 is sealed by interference fit with the drive shaft 4.
The free end of the dust cap 4 is provided with a bevel 11. The inclined surface 11 is arranged, so that the sand and dust can slide along the inclined surface 11, the sand and dust can not fly in disorder, and the sand and dust can be prevented from being deposited.
The oil seal body 8, the first oil seal dust cover 6, the second oil seal dust cover 9 and the oil seal lip 10 are integrally formed through vulcanization. Sand and dust at the joint can be effectively prevented from entering through integral vulcanization molding.
The scheme adopts a novel structure of the transmission oil seal 3, and has a certain dustproof effect. In addition, the novel structure dust cover 5 is matched, and the dust cover and the novel structure dust cover are matched for use, so that the dust-proof effect is good. The effect that sand dust enters and damages the oil seal can be achieved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (4)
1. The dustproof structure is characterized by comprising a gearbox, a driving shaft interface arranged on the gearbox, a detachable transmission oil seal arranged on the driving shaft interface, a driving shaft connected with the gearbox through the gearbox oil seal and the driving shaft interface, and a detachable dustproof cover arranged on the driving shaft, wherein the transmission oil seal comprises an oil seal body, a first oil seal dustproof cover arranged on the outer side of the oil seal body and having a dustproof effect, a second oil seal dustproof cover arranged at one end of the oil seal body and having a dustproof effect, and an oil seal lip arranged on the inner side of the oil seal body; the connecting end of the first oil seal dust cover is connected with the oil seal body, the cross section of the first oil seal dust cover is of a U-shaped structure, and the free end of the first oil seal dust cover is provided with a cover guard ring extending outwards; the connecting end of the second oil seal dust cover is connected with one end of the oil seal body, the section of the second oil seal dust cover is of a U-shaped structure, and the free end of the second oil seal dust cover is folded towards the inner side of the oil seal body and matched with the driving shaft; the connecting end of the oil seal lip is connected with the inner side of the oil seal body, and the free end of the oil seal lip is folded towards the inner side of the oil seal body and matched with the driving shaft.
2. The dust-proof structure of claim 1, wherein the dust-proof cover is "U" shaped, and the connection end of the dust-proof cover is interference fitted with the drive shaft.
3. The dust-proof structure of claim 2, wherein the free end of the dust cover is provided with a bevel.
4. The dustproof construction according to claim 3, wherein the oil seal body, the first oil seal dust cover, the second oil seal dust cover, and the oil seal lip are integrally vulcanization molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259983.6A CN106594242B (en) | 2016-12-30 | 2016-12-30 | Dustproof structure at interface of driving shaft and speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259983.6A CN106594242B (en) | 2016-12-30 | 2016-12-30 | Dustproof structure at interface of driving shaft and speed changer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106594242A CN106594242A (en) | 2017-04-26 |
| CN106594242B true CN106594242B (en) | 2023-09-15 |
Family
ID=58581571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611259983.6A Active CN106594242B (en) | 2016-12-30 | 2016-12-30 | Dustproof structure at interface of driving shaft and speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106594242B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08320060A (en) * | 1995-05-25 | 1996-12-03 | Jatco Corp | Differential device |
| WO2012039156A1 (en) * | 2010-09-24 | 2012-03-29 | Nok株式会社 | Oil seal |
| CN202451793U (en) * | 2012-02-27 | 2012-09-26 | 中国重汽集团济南动力有限公司 | Gearbox auxiliary box output shaft oil seal structure |
| CN203395151U (en) * | 2013-04-15 | 2014-01-15 | 中国第一汽车股份有限公司 | Inner oil-resistant plate-type oil seal with dustproof cover and lip |
| CN203453414U (en) * | 2013-08-15 | 2014-02-26 | 力帆实业(集团)股份有限公司 | Oil seal sealing structure for differential and transmission shaft |
| CN206503913U (en) * | 2016-12-30 | 2017-09-19 | 上汽通用五菱汽车股份有限公司 | A kind of drive shaft and the dustproof construction at transmission interface |
-
2016
- 2016-12-30 CN CN201611259983.6A patent/CN106594242B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08320060A (en) * | 1995-05-25 | 1996-12-03 | Jatco Corp | Differential device |
| WO2012039156A1 (en) * | 2010-09-24 | 2012-03-29 | Nok株式会社 | Oil seal |
| CN202451793U (en) * | 2012-02-27 | 2012-09-26 | 中国重汽集团济南动力有限公司 | Gearbox auxiliary box output shaft oil seal structure |
| CN203395151U (en) * | 2013-04-15 | 2014-01-15 | 中国第一汽车股份有限公司 | Inner oil-resistant plate-type oil seal with dustproof cover and lip |
| CN203453414U (en) * | 2013-08-15 | 2014-02-26 | 力帆实业(集团)股份有限公司 | Oil seal sealing structure for differential and transmission shaft |
| CN206503913U (en) * | 2016-12-30 | 2017-09-19 | 上汽通用五菱汽车股份有限公司 | A kind of drive shaft and the dustproof construction at transmission interface |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106594242A (en) | 2017-04-26 |
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