CN205101565U - Combination oil seal structure - Google Patents
Combination oil seal structure Download PDFInfo
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- CN205101565U CN205101565U CN201520910788.XU CN201520910788U CN205101565U CN 205101565 U CN205101565 U CN 205101565U CN 201520910788 U CN201520910788 U CN 201520910788U CN 205101565 U CN205101565 U CN 205101565U
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- lip
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- oil sealing
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Abstract
The utility model provides a combination oil seal structure belongs to electric motor car technical field. It has solved the problem that how to improve oil blanket life. This combination oil seal structure is including being skeleton oil blanket body, framework sleeve establishes the inner at the oil blanket body, the outer end of oil blanket body is provided with the protection bowl, the protection bowl is including the ring body, protruding circle in the having in interior week of ring body, the periphery of ring body has the evagination circle, have on the inner peripheral surface of oil blanket body and be annular radial seal lip, protruding circling including the radial seal lip supports and leans on, have on the outer end terminal surface of oil blanket body and be annular protection lip and axial seal lip, the axial seal lip is located the inboard of protection lip, the protection lip supports and leans on on the outer peripheral face of evagination circle, the axial seal lip supports and leans on on the ring body. This combination oil seal structure has internal diameter primary seal face, tip auxiliary seal face and external diameter to the U type protection bowl structure of the sealed face of protection and the cooperation of oil blanket body upper seal lip through the adoption, has improved that the oil blanket is waterproof prevents silt performance and life.
Description
Technical field
The utility model belongs to vehicle technology field, relates to a kind of Sealing of wheel hub motor, particularly a kind of combination oil seal structure.
Background technique
Electric motor car is widely applied and popularizes because of advantages such as it is simple to operate, easy to use, with low cost, energy-conserving and environment-protective.But due to its directly in the face of wind, Exposure to Sunlight, drench with rain, Environmental Conditions that dust etc. is special, in use can run into various fault, it is exactly one of them that wheel hub electric motor of electric vehicle lost efficacy.Wheel hub motor inefficacy chief reason be due to its for protect oil sealing disabler or poor sealing performance and cause the extraneous medium such as silt, water to enter wheel hub motor inside, cause wheel hub motor internal electric part and other damage of components to lose efficacy.Therefore, the working life of wheel hub motor oil sealing, the ability of the anti-silt of waterproof are concerning particularly important wheel hub motor.And wheel hub electric motor of electric vehicle Sealing in the market all directly adopts traditional rotation lip seal oil sealing substantially, this kind of oil sealing object Main Function prevents in-house lubricant oil to outward leakage, its sealing lip contacts with lubricant oil, and lip working environment is better, and the life-span is longer.And the object that wheel hub motor arranges oil sealing prevents harmful environmental material from entering motor internal, damage motor internal device, its lip does not only lubricate but also the direct harmful matter such as dust exposure, rainwater, silt, and both are just contrary.Therefore this kind of oil sealing is directly used on wheel hub electric motor of electric vehicle and is easy to lose efficacy, and the life-span is extremely short.
In order to solve above-mentioned Problems existing, as Chinese patent [application number: 201410283738.3; Application publication number: CN104074982A] disclose a kind of novel electric vehicle wheel hub motor oil sealing, be made up of rubber dicheilia, metal frame and garter springs, described metal frame is by sulfuration and rubber dicheilia tight bond, and garter springs is arranged in the spring groove of rubber dicheilia.Repack with grease between described rubber dicheilia.The outermost end dust excluder lips of described rubber dicheilia is designed to exocentric structure.
But, also there is following defect in above-mentioned wheel hub motor oil sealing: above-mentioned wheel hub motor oil sealing in use can follow the extraneous physical contact between media such as silt, water, easily cause rubber dicheilia aging, working life shortens, thus cause the anti-silt disabler of the waterproof of oil sealing, finally cause wheel hub motor fault.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes a kind of combination oil seal structure, and the technical problem that the utility model solves is the working life of how to improve oil sealing.
The purpose of this utility model realizes by following technical proposal: a kind of combination oil seal structure, comprise the skeleton in lid and oil sealing body in the form of a ring, it is characterized in that, described skeleton is set in the inner of oil sealing body, the outer end of described oil sealing body is provided with protection bowl, described protection bowl comprises ring body in the form of a ring, the inner circumferential of described ring body has interior flange collar in the form of a ring, the periphery of described ring body has outer flange collar in the form of a ring, the inner peripheral surface of described oil sealing body has radial seal lip in the form of a ring, described radial seal lip is resisted against in interior flange collar, the outer end end face of described oil sealing body have anti-lip care in the form of a ring and axial seal lip, described axial seal lip is positioned at the inner side of described anti-lip care, described anti-lip care is resisted against on the outer circumferential face of described outer flange collar, described axial seal lip is resisted against on ring body.
According to the applying working condition of wheel hub electric motor of electric vehicle, this combination oil seal structure has the cooperation of sealing lip on internal diameter primary sealing area, the U-shaped protection bowl structure in auxiliary seal face, end and outer radial exclusion seal face and oil sealing body by adopting, improve the anti-silt performance and used life of oil sealing waterproof.Specifically, radial seal lip on oil sealing body defines internal diameter primary sealing area with the convex circle of protection bowl, axial seal lip on oil sealing body defines auxiliary seal face, end with the bottom of protection bowl, anti-lip care on oil sealing body defines outer radial exclusion seal face with the evagination circle of protection bowl, thus increase the sealing area of whole oil seal structure, improve the sealability of the anti-silt of oil seal structure waterproof; Simultaneously; by design protection bowl, the axial seal lip on oil sealing body and the protection of radial seal lip are being protected inside bowl; avoid sealing lip to be exposed to the sun and rain, prevent the extraneous medium such as silt, water from directly contacting with sealing lip, thus improve the working life of oil seal structure.In addition, oil sealing body is in the structural design of protection bowl internal rotating sealing, the internal surface of protection bowl substitutes former motor shaft periphery as after sealing surface, protection bowl surface hardness and roughness be can independently adjust according to oil sealing friction factor demand, the too high easy off-axis of existing oil sealing sealing motor shaft surface hardness and low hardness friction factor large oil sealing life-span both conflicting problems short solved.
In above-mentioned combination oil seal structure, described anti-lip care tilts towards axial seal lip, and described axial seal lip tilts towards anti-lip care.By the design to anti-lip care and axial seal lip, protecting cover is subject to the effect of both contrary impacting forces, is embraced between anti-lip care and axial seal lip tightly, improves the sealing of the anti-silt of waterproof herein.
In above-mentioned combination oil seal structure, described radial seal lip tilts to the outer extreme direction of oil sealing body.By the design to radial sealing lip, make the cooperation of radial seal lip and protecting cover more tight, thus improve sealability herein.
In above-mentioned combination oil seal structure, be formed with Seal cage between described oil sealing body and protection bowl, in described Seal cage, be filled with lubricating grease.Lubricating grease serves lubrication, has both reduced the starting torque that oil sealing body rotates, has turn improved the working life of oil seal structure.
In above-mentioned combination oil seal structure, the outer circumferential face of described oil sealing body has flange, the edge, outer ring of described skeleton is embedded in flange, and the inner ring edge of described skeleton has the kink bent inwards, and described kink is embedded in described oil sealing body.By design kink, both made between skeleton and oil sealing body more firm, be conducive to sealing and the outer ring body Corrosion Protection of outer ring and ending cover hole, and then be conducive to the working life of improving oil sealing.
Compared with prior art, this combination oil seal structure has the following advantages: this combination oil seal structure has the cooperation of sealing lip on internal diameter primary sealing area, the U-shaped protection bowl structure in auxiliary seal face, end and outer radial exclusion seal face and oil sealing body by adopting, improve the anti-silt performance and used life of oil sealing waterproof, thus wheel hub electric motor of electric vehicle can normally for a long time effectively be worked, improve the working life of electric motor car.
Accompanying drawing explanation
Fig. 1 is the sectional view of combination oil seal structure in the present embodiment one.
Fig. 2 is the structural representation figure protecting bowl in the present embodiment one.
Fig. 3 is the assembling application drawing of combination oil seal structure in the present embodiment one.
Fig. 4 is the sectional view of combination oil seal structure in the present embodiment two.
Fig. 5 is the structural representation of the further security application of this combination oil seal structure.
In figure, 1, skeleton; 11, kink; 2, oil sealing body; 21, radial seal lip; 22, anti-lip care; 23, axial seal lip; 24, flange; 3, bowl is protected; 31, ring body; 32, interior flange collar; 33, outer flange collar; 4, Seal cage; 5, lubricating grease; 6, motor shaft; 7, electric motor end cap; 8, protecting cover; 9, rubber layer.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment one:
This combination oil seal structure comprises skeleton 1, kink 11, oil sealing body 2, radial seal lip 21, anti-lip care 22, axial seal lip 23, flange 24, protection bowl 3, ring body 31, interior flange collar 32, outer flange collar 33, Seal cage 4, lubricating grease 5.
Specifically, as shown in Figure 1, this combination oil seal structure comprises the skeleton 1 in lid and oil sealing body 2 in the form of a ring, skeleton 1 is set in the inner of oil sealing body 2, the outer circumferential face of oil sealing body 2 has flange 24, the edge, outer ring of skeleton 1 is embedded in flange 24, and the inner ring edge of skeleton 1 has the kink 11 bent inwards, kink 11 is embedded in oil sealing body 2.The outer end of oil sealing body 2 is provided with protection bowl 3.
As shown in Figure 2, protection bowl 3 comprises ring body 31 in the form of a ring, and the inner circumferential of ring body 31 has interior flange collar 32 in the form of a ring, and the periphery of ring body 31 has outer flange collar 33 in the form of a ring.The inner peripheral surface of oil sealing body 2 has radial seal lip 21 in the form of a ring, radial seal lip 21 tilts to the outer extreme direction of oil sealing body 2.Radial seal lip 21 is resisted against in interior flange collar 32.The outer end end face of oil sealing body 2 has anti-lip care 22 in the form of a ring and axial seal lip 23, axial seal lip 23 is positioned at the inner side of anti-lip care 22, and anti-lip care 22 tilts towards axial seal lip 23, and axial seal lip 23 tilts towards anti-lip care 22.Anti-lip care 22 is resisted against on the outer circumferential face of outer flange collar 33, and axial seal lip 23 is resisted against on ring body 31.Be formed with Seal cage 4 between oil sealing body 2 and protection bowl 3, in Seal cage 4, be filled with lubricating grease 5.
As shown in Figure 3, when combinations thereof oil seal structure is applied on wheel hub electric motor of electric vehicle, its working principle is as follows: the interior flange collar 32 of above-mentioned protection bowl 3 to be set on motor shaft 6 and with motor shaft 6 drive fit, the endoporus drive fit of above-mentioned skeleton 1 and electric motor end cap 7, when electric motor end cap 7 rotates, skeleton 1 and oil sealing body 2 can be driven to rotate, protection bowl 3 is motionless with axle, now, form motive sealing between oil sealing body 2 and protection bowl 3, radial seal lip 21 and axial seal lip 23 are all protecting bowl 3 internal work.Lubricating grease 5 in Seal cage 4 plays the effect of lubrication and protection sealing lip.
As shown in Figure 5, when combinations thereof oil sealing is applied on wheel hub electric motor of electric vehicle, a protecting cover 8 can also be buckled in the end of electric motor end cap 7, its outside at this combination oil seal is made to form one protection isolation again, prevent the harmful matter such as rainwater, silt from contacting this combination oil seal, thus improve the working life of this combination oil seal further.
Embodiment two:
Technological scheme in the present embodiment is substantially identical with the technological scheme in embodiment one, difference is, as shown in Figure 4, in the present embodiment, all be coated with rubber layer 9 outside skeleton 1 and protection bowl 3, improve the static seal performance of the combination of this oil sealing and motor shaft 6 and electric motor end cap 7 endoporus.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the term such as skeleton 1, kink 11, oil sealing body 2, radial seal lip 21, anti-lip care 22, axial seal lip 23, flange 24, protection bowl 3, ring body 31, interior flange collar 32, outer flange collar 33, Seal cage 4, lubricating grease 5, motor shaft 6, electric motor end cap 7, protecting cover 8, rubber layer 9 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (6)
1. a combination oil seal structure, comprise the skeleton (1) in lid and oil sealing body (2) in the form of a ring, it is characterized in that, described skeleton (1) is set in the inner of oil sealing body (2), the outer end of described oil sealing body (2) is provided with protection bowl (3), described protection bowl (3) comprises ring body (31) in the form of a ring, the inner circumferential of described ring body (31) has interior flange collar (32) in the form of a ring, the periphery of described ring body (31) has outer flange collar (33) in the form of a ring, the inner peripheral surface of described oil sealing body (2) has radial seal lip (21) in the form of a ring, described radial seal lip (21) is resisted against in interior flange collar (32), the outer end end face of described oil sealing body (2) have anti-lip care (22) in the form of a ring and axial seal lip (23), described axial seal lip (23) is positioned at the inner side of described anti-lip care (22), described anti-lip care (22) is resisted against on the outer circumferential face of described outer flange collar (33), described axial seal lip (23) is resisted against on ring body (31).
2. combination oil seal structure according to claim 1, is characterized in that, described anti-lip care (22) is tilted towards axial seal lip (23), and described axial seal lip (23) is tilted towards anti-lip care (22).
3. combination oil seal structure according to claim 1, is characterized in that, described radial seal lip (21) is tilted to the outer extreme direction of oil sealing body (2).
4. the combination oil seal structure according to claim 1 or 2 or 3, it is characterized in that, be formed with Seal cage (4) between described oil sealing body (2) and protection bowl (3), in described Seal cage (4), be filled with lubricating grease (5).
5. the combination oil seal structure according to claim 1 or 2 or 3, it is characterized in that, the outer circumferential face of described oil sealing body (2) has flange (24), the edge, outer ring of described skeleton (1) is embedded in flange (24), the inner ring edge of described skeleton (1) has the kink (11) bent inwards, described kink (11) is embedded in described oil sealing body (2).
6. the combination oil seal structure according to claim 1 or 2 or 3, is characterized in that, described skeleton (1) and protection bowl (3) are all coated with rubber layer (9) outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520910788.XU CN205101565U (en) | 2015-11-16 | 2015-11-16 | Combination oil seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520910788.XU CN205101565U (en) | 2015-11-16 | 2015-11-16 | Combination oil seal structure |
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| CN205101565U true CN205101565U (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520910788.XU Active CN205101565U (en) | 2015-11-16 | 2015-11-16 | Combination oil seal structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707062A (en) * | 2017-10-11 | 2018-02-16 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of sealing ring, motor and air conditioner for motor |
| CN108150653A (en) * | 2017-12-25 | 2018-06-12 | 陈旭明 | A kind of five lip combination seals |
| CN108882605A (en) * | 2017-05-16 | 2018-11-23 | 赛米控电子股份有限公司 | Power electronics devices including communication device |
| CN113915236A (en) * | 2021-11-03 | 2022-01-11 | 徐州丰亿电动车配件有限公司 | Lubricating floating oil seal structure of hub motor of electric tricycle |
-
2015
- 2015-11-16 CN CN201520910788.XU patent/CN205101565U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108882605A (en) * | 2017-05-16 | 2018-11-23 | 赛米控电子股份有限公司 | Power electronics devices including communication device |
| CN108882605B (en) * | 2017-05-16 | 2021-02-26 | 赛米控电子股份有限公司 | Power electronic device comprising communication means |
| CN107707062A (en) * | 2017-10-11 | 2018-02-16 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of sealing ring, motor and air conditioner for motor |
| CN107707062B (en) * | 2017-10-11 | 2024-08-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Sealing ring for motor, motor and air conditioner |
| CN108150653A (en) * | 2017-12-25 | 2018-06-12 | 陈旭明 | A kind of five lip combination seals |
| CN113915236A (en) * | 2021-11-03 | 2022-01-11 | 徐州丰亿电动车配件有限公司 | Lubricating floating oil seal structure of hub motor of electric tricycle |
| CN113915236B (en) * | 2021-11-03 | 2023-11-24 | 徐州丰亿电动车配件有限公司 | Lubricating floating oil seal structure of electric tricycle hub motor |
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| C14 | Grant of patent or utility model | ||
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Address after: 3 Wanjin Road, Zeguo Town, Wenling City, Taizhou City, Zhejiang Province Patentee after: Zhejiang Jiuzhou New Energy Technology Co.,Ltd. Address before: No.188, Wenchang South Road, nanyangwang village, Zeguo Town, Wenling City, Taizhou City, Zhejiang Province, 317521 Patentee before: WENLING JIUZHOU ELECTROMECHANICAL Co.,Ltd. |