CN207569198U - A kind of engine oil seal - Google Patents

A kind of engine oil seal Download PDF

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Publication number
CN207569198U
CN207569198U CN201721643339.9U CN201721643339U CN207569198U CN 207569198 U CN207569198 U CN 207569198U CN 201721643339 U CN201721643339 U CN 201721643339U CN 207569198 U CN207569198 U CN 207569198U
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CN
China
Prior art keywords
oil seal
engine
engine oil
support frame
vertical section
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Application number
CN201721643339.9U
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Chinese (zh)
Inventor
李书福
蔡文远
蒋海勇
卢瑞军
苏茂辉
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Tianjin Alcohol Hydrogen Research And Development Co ltd
Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely New Energy Commercial Vehicle Group Co Ltd
Zhejiang Geely Remote New Energy Commercial Vehicle Group Co Ltd
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Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely New Energy Commercial Vehicle Co Ltd
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Priority to CN201721643339.9U priority Critical patent/CN207569198U/en
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Publication of CN207569198U publication Critical patent/CN207569198U/en
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Abstract

The utility model provides a kind of engine oil seal, is assemblied on the bent axle of engine.Including:Support frame, for cylindric integral structure, there is the horizontal segment being laterally extended along engine housing and the vertical section to be formed is longitudinally extended along the tail portion of horizontal segment to crankshaft direction, horizontal segment is stepped to the crankshaft direction, and direction is divided into the first ladder and the second ladder from the beginning to the end.Support frame is divided into outer skeleton and inner frame two parts, and the first ladder of horizontal segment is the outer skeleton, and the second ladder and vertical section of horizontal segment are the inner frame of support frame;Rubber bodies, rubber bodies are wrapped on the outer surface of inner frame, and the outer surface that rubber bodies wrap up the second ladder connect and concordant with the outer surface of outer skeleton, together with outer skeleton with the housing of engine interference fit.The engine oil seal of the utility model can improve the wear resistance of engine and anti-eccentric performance, meet the requirement of engine.

Description

A kind of engine oil seal
Technical field
The utility model is related to vehicle manufacture field, more particularly to a kind of engine oil seal.
Background technology
Engine oil seal is assemblied on engine crankshaft, for preventing crankcase engine oil from leaking.Traditional oil sealing, such as Fig. 1 Shown, oil sealing support frame 110 is all wrapped up by rubber bodies 120, and oil sealing is assemblied in engine fixed shell, rubber bodies 120 With fixed shell tight fit, support frame 110 plays a supportive role, and needs to set spring 160 in sealing lips 130, to carry For enclasping force, ensure that sealing lips 130 holds bent axle tightly, seal machine oil.But since the abrasion resistance properties of rubber bodies are poor, make After a period of time, the sealing performance of oil sealing is remarkably decreased.In addition, the enclasping force that spring provides can also reduce so that sealing lip There is eccentric phenomena with bent axle in piece.Therefore, to ensure that engine oil seal has good abrasion resistance properties and anti-eccentric ability, prolong The service life of long oil sealing needs to design new oil enveloping structure, to meet the needs of engine.
Utility model content
The purpose of this utility model is to provide for a kind of engine oil seal, to improve the abrasion resistance properties of engine and resist inclined Heart ability meets the requirement of engine.
Particularly, the utility model provides a kind of engine oil seal, is assemblied on the bent axle of engine, including:Support Skeleton, cambered shell shape, cross section radially have the horizontal segment being laterally extended along engine housing, Yi Jiyan in a ring The tail portion of the horizontal segment is longitudinally extended the vertical section to be formed to crankshaft direction, and the horizontal segment is to the crankshaft direction in ladder Shape, from the beginning to the end direction be divided into the first ladder and the second ladder, wherein, towards the side of motor body be the support frame Outer surface, the side opposite with the outer surface is the inner surface of the support frame, and the support frame is divided into outer skeleton With inner frame two parts, wherein, the first ladder of the horizontal segment is the outer skeleton, the second ladder of the horizontal segment and institute State the inner frame that vertical section is the support frame;And rubber bodies, the rubber bodies are wrapped on the outer surface of the inner frame, The outer surface that the rubber bodies wrap up second ladder connects and concordant with the outer surface of the outer skeleton, with the outer skeleton It is interference fitted together with the housing of the engine.
Further, the rubber bodies are bent in the end of the vertical section of the support frame and into the vertical sections Surface extends;It is described in the part of the inner surface of the vertical section of inner frame extension for inner rubber body in the rubber bodies The part that the inner frame outer surface is wrapped up in rubber bodies is outer rubber body.
Further, the oil sealing also has sealing lips, is made of polytetrafluoroethylene material, and the sealing lips is L-type, the axial direction of bent axle extends described in an edge of the sealing lips L-type, is close proximity to the outer surface of the bent axle;It is described The another side of sealing lips L-type is fixed on the inner rubber body, and parallel with the vertical section of the support frame.
Further, the engine oil seal is no spring-loaded oil seal, and the sealing lips and the concentricity of the bent axle are big In 0.8.
Further, one side that the sealing lips is contacted with the bent axle, is distributed with several oil storage tanks.
Further, the portion that the rubber bodies extend in the end of the vertical section of the support frame to the crankshaft direction Divide and form dust-proof lips, one jiao of the dustproof lip piece end is resisted against on the outer surface of the bent axle.
Further, the dust-proof lips is also extended laterally to the motor body direction, the dustproof lip piece end Another angle and positioned at the inner frame vertical section the outer rubber body outer surface it is in the same plane.
Further, the engine oil seal also have dust gasket, the dust gasket be circular ring type, the dust-proof cushion The inner ring surface of circle is contacted with the bent axle;The dust gasket is arranged on the described outer of the vertical section of wrapping up the support frame Between side rubber bodies, the dust-proof lips and the motor body.
Further, the engine is the engine using methanol as main fuel.
The engine oil seal of the utility model can improve the wear-resisting of oil sealing due to the support framework structure using half packet Performance is damaged, to ensure the leakproofness of engine oil seal, and can be avoided due to engine oil seal caused by the abrasion of rubber bodies and song The problem of eccentric shaft, improves the leakproofness of engine oil seal and anti-eccentric ability.
Further, the engine oil seal of the utility model is no spring-loaded oil seal, can be avoided due to caused by spring aging Oil sealing eccentricity issues while improving the leakproofness of engine oil seal and anti-eccentric ability, simplify the structure of engine oil seal.
According to the accompanying drawings to the detailed description of the utility model specific embodiment, those skilled in the art will be more Add the above-mentioned and other purposes, advantages and features of clear the utility model.
Description of the drawings
Some specific realities of the utility model are described in detail by way of example rather than limitation with reference to the accompanying drawings hereinafter Apply example.Identical reference numeral denotes same or similar component or part in attached drawing.It should be appreciated by those skilled in the art that What these attached drawings were not necessarily drawn to scale.In attached drawing:
Fig. 1 is a kind of structure diagram of engine oil seal in the prior art;
Fig. 2 is the structure diagram according to the engine oil seal of the utility model one embodiment.
Each symbolic indication meaning is as follows in figure:
100 engine oil seals,
110 support frames,
111 outer skeletons, 112 inner frames,
120 rubber bodies,
121 outer rubber bodies, 122 inner rubber bodies,
130 sealing lips, 131 oil storage tanks,
140 dust-proof lips,
150 dust gaskets,
160 springs.
Specific embodiment
The utility model provides a kind of engine oil seal, is assemblied on the bent axle of engine.Fig. 2 is according to the utility model The structure diagram of the engine oil seal of one embodiment.Fig. 2 is the sectional view of engine oil seal 100 radially, and is omitted The engine oil seal 100 is about A to symmetrical right half of section, and wherein A is to the axial direction for bent axle, and B is to the radial direction for bent axle. The engine oil seal 100 of the utility model may include support frame 110, rubber bodies 120 and sealing lips 130 in general manner.Such as Shown in Fig. 2, support frame 110 is used to support, in a ring cambered shell shape, and cross section radially has along outside engine It horizontal segment that shell (A to) is laterally extended and is longitudinally extended along the tail portion of the horizontal segment to crankshaft direction (B to), forms institute When stating the vertical section of support frame 110, horizontal segment described herein and vertical section with 100 installation condition of engine oil seal Come what is described.The horizontal segment is stepped to the crankshaft direction, and direction is divided into the first ladder and the second ladder from the beginning to the end, Towards the outer surface that the side of motor body is support frame 110, the side opposite with the outer surface is the support rib The inner surface of frame 110.The support frame 110 divides for 112 two parts of outer skeleton 111 and inner frame, wherein, the horizontal segment First ladder is the outer skeleton 111, and the second ladder of the horizontal segment and the vertical section are the interior of the support frame 110 Skeleton 112.
Rubber bodies 120 are wrapped on the outer surface of inner frame 112, and the rubber bodies 120 wrap up the outer of second ladder Surface connects and concordant with the outer surface of the outer skeleton 111, with the outer skeleton 111 together with the housing mistake of the engine It is full of cooperation.Rubber bodies 120 are also bent in the end of the vertical section of support frame 110, and are extended to the inner surface of vertical section.Rubber In the part of the inner surface of the vertical section of inner frame 112 extension for inner rubber body 122 in body 120, in rubber bodies 120 in package The part of 112 outer surface of skeleton is outer rubber body 121.
The engine oil seal 100 of the utility model, support frame 110 are half pack arrangement, outer skeleton 111 and rubber bodies 120 It is interference fitted together with the housing of the engine, the abrasion resistance properties of oil sealing 100 is improved, to ensure engine oil seal 100 Leakproofness, and can avoid the problem that, due to engine oil seal 100 caused by the abrasion of rubber bodies 120 and crankshaft eccentric, improving The leakproofness of engine oil seal 100 and anti-eccentric ability.
Generally, in gasoline can mixed with methanol, and the vehicle using methanol as clean energy resource start to be widely used, pass The material of the rubber bodies 120 of system is common nitrile rubber (NBR), and methanol tolerant corrosive nature is poor, meeting after rubber bodies 120 are corroded Further influence the leakproofness of oil sealing 100 and anti-eccentric performance.The rubber bodies 120 of the utility model preferentially select improvement fluorubber It is made, to improve the methanol tolerant corrosive power of oil sealing 100, to adapt to application of the oil sealing 100 in novel carbinol engine.Into one Step ensures the leakproofness of engine oil seal 100, and can avoid due to engine oil seal caused by the abrasion and corrosion of rubber bodies 120 100 and the problem of crankshaft eccentric, improve the leakproofness of engine oil seal 100 and anti-eccentric ability.
The raw material component proportion of improvement fluorubber employed in the utility model is:Ternary fluororubber (FKM) 55~85, vulcanization accelerator 1.2~4.5, calcium hydroxide 6.5~10, palm wax 0.9~3.2, the strong powder 17~22 of silicon.The improvement The polymer molecular structure of fluorubber can effectively resist the combustion product formic acid of methanol high swelling property in itself and methanol Strong corrosive, have outstanding methanol tolerant corrosive nature, be especially suitable for applying the engine oil using methanol as main fuel Feng Zhong instead of traditional nitrile rubber (NBR), improves the methanol tolerant corrosivity of engine oil seal.
Preferably, the various raw material component proportions of the improvement fluorubber are listed in Table 1 below.
Table 1 improves the various raw material component proportion embodiments of fluorubber
Raw material Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4
Ternary fluororubber (FKM) 55 65 75 85
Vulcanization accelerator 1.2 2 3.8 4.5
Calcium hydroxide 6.5 7.1 7.5 10
Palm wax 0.9 1 2.5 3.2
The strong powder of silicon 17 20 21.5 22
Engine oil seal 100 also has sealing lips 130, and sealing lips 130 is " L " type.Lips 130 " L " type of sealing The axial direction extension of one edge bent axle is close proximity to the outer surface of the bent axle.In the another side of sealing lips " L " type is fixed on In side rubber bodies 122, and it is parallel with the vertical section of support frame 110.One side that sealing lips 130 is contacted with bent axle, is distributed with Several little grooves are oil storage tank 131.Oil storage tank 131 forms several gaps so that sealing when lips 130 is contacted with bent axle, should Gap can store machine oil, help to improve the leakproofness of engine oil seal 100.
Sealing lips 130 is made of polytetrafluoroethylene (PTFE) (PTFE) material, after polytetrafluoroethylene (PTFE) (PTFE), sealing lip Piece 130 no longer needs spring to provide enclasping force so that engine oil seal 100 can cancel spring.Polytetrafluoroethylene (PTFE) (PTFE) Friction coefficient is small, wear-resistant, can also improve the anti-eccentric ability of engine oil seal, and reliability is greatly improved.In addition, the material Expect that methanol tolerant corrosive nature is excellent, improve fluorubber and polytetrafluoroethylene (PTFE) (PTFE) combines manufactured engine oil seal, can apply In methanol engine, the methanol tolerant corrosivity, leakproofness and anti-eccentric ability of engine oil seal can be significantly improved.In reality In, sealing lips 130 and the concentricity of bent axle can reach more than 0.8, much larger than the 0.5 of common oil sealing.
In one embodiment of the utility model, engine oil seal 100 is additionally provided with dust-proof lips 140.Dust-proof lips 140 It is extended to form for rubber bodies 120 in the end of the vertical section of support frame 110 to the crankshaft direction.Dust-proof 140 end of lips One jiao be resisted against on the outer surface of bent axle.Dust-proof lips 140 is also extended laterally to motor body direction, dust-proof lips 140 Another angle of end and the outer surface of the outer rubber body 121 of the vertical section positioned at inner frame 112 are in the same plane.It is dust-proof The material of lips 140 is preferably above-mentioned improvement fluorubber.
Dust-proof lips 140 can prevent outer particle from entering in engine, reduce the abrasion between engine interior device, carry The leakproofness and reliability of high engine oil seal 100.
In one embodiment of the utility model, engine oil seal 100 is additionally provided with dust gasket 150.Dust gasket 150 For circular ring type, the inner ring surface of dust washer 150 is contacted with bent axle.Dust gasket 150 is arranged on the package support frame 110 Between the outer rubber body 121 of vertical section, dust-proof lips 140 and motor body.The material of dust gasket 150 is nonwoven Cloth.
The dirt exclusion capabilities of engine oil seal 100 can be improved using dust gasket 150, non-woven fabrics filter efficiency is high, further In-engine impurity abrasion is reduced, improves the service life of engine oil seal 100.
In another embodiment of the utility model, engine is the engine using methanol as main fuel.
The utility model is shown in Table 2 using the advantageous effect ginseng of engine oil seal 100 made of above-mentioned improvement fluorubber.
As shown in Table 2, the improvement fluorubber of the utility model shows excellent in methanol tolerant test, and indices are better than Current standard requirement, has excellent methanol tolerant corrosive nature, is especially suitable for applying the engine using methanol as main fuel In oil sealing.
Anti- bias aptitude tests are to deviate the axial centre of the axis of bent axle and engine oil seal, when offset reaches one When determining degree, oil sealing starts oil leak, and anti-eccentric ability is evaluated by comparing maximum oil sealing offset.By testing, in Fig. 1 The prior art engine oil seal maximum offset for 0.5mm, using engine oil seal made of above-mentioned improvement fluorubber 100 maximum offset is 1.3mm, and anti-bias performance significantly improves.
The methanol tolerant performance test of the improvement fluorubber of 2 the utility model of table
So far, although those skilled in the art will appreciate that detailed herein have shown and described the more of the utility model A exemplary embodiment, still, still can be according to the utility model public affairs in the case where not departing from the spirit and scope of the utility model The content opened directly determines or derives many other variations or modifications for meeting the utility model principle.Therefore, this practicality is new The range of type is understood that and regards as to cover other all these variations or modifications.

Claims (9)

1. a kind of engine oil seal, is assemblied on the bent axle of engine, it is characterised in that including:
Support frame, cambered shell shape, cross section radially have the level being laterally extended along engine housing in a ring Section and it is longitudinally extended the vertical section to be formed along the tail portion of the horizontal segment to crankshaft direction, the horizontal segment is to the bent axle Direction is stepped, and direction is divided into the first ladder and the second ladder from the beginning to the end, wherein, it is institute towards the side of motor body The outer surface of support frame is stated, inner surface of the side opposite with the outer surface for the support frame, the support frame It is divided into outer skeleton and inner frame two parts, wherein, the first ladder of the horizontal segment is the outer skeleton, the of the horizontal segment Two ladders and the inner frame that the vertical section is the support frame;With
Rubber bodies, the rubber bodies are wrapped on the outer surface of the inner frame, and the rubber bodies wrap up second ladder Outer surface connects and concordant with the outer surface of the outer skeleton, matches together with the outer skeleton with the housing interference of the engine It closes.
2. engine oil seal according to claim 1, which is characterized in that
The rubber bodies are bent in the end of the vertical section of the support frame and extend to the inner surface of the vertical section;It is described Institute is wrapped up in the rubber bodies for inner rubber body in the part of the inner surface of the vertical section of inner frame extension in rubber bodies The part for stating inner frame outer surface is outer rubber body.
3. engine oil seal according to claim 2, which is characterized in that
The oil sealing also has sealing lips, is made of polytetrafluoroethylene material;The lips that seals is L-type, the sealing The axial direction extension of bent axle described in one edge of lips L-type is close proximity to the outer surface of the bent axle;The sealing lips L-type Another side be fixed on the inner rubber body, and parallel with the vertical section of the support frame.
4. engine oil seal according to claim 3, which is characterized in that
The engine oil seal is no spring-loaded oil seal, and the sealing lips and the concentricity of the bent axle are more than 0.8.
5. engine oil seal according to claim 3, which is characterized in that
One side that the sealing lips is contacted with the bent axle, is distributed with several oil storage tanks.
6. according to the engine oil seal described in any one of claim 2-5, which is characterized in that
The rubber bodies form dustproof lip in the end of the vertical section of the support frame to the part that the crankshaft direction extends Piece, one jiao of the dustproof lip piece end are resisted against on the outer surface of the bent axle.
7. engine oil seal according to claim 6, which is characterized in that
The dust-proof lips is also extended laterally to the motor body direction, and another angle of the dustproof lip piece end is with being located at The outer surface of the outer rubber body of the vertical section of the inner frame is in the same plane.
8. engine oil seal according to claim 6, which is characterized in that
The engine oil seal also have dust gasket, the dust gasket be circular ring type, the inner ring surface of the dust washer It is contacted with the bent axle;The dust gasket is arranged on the outer rubber body for the vertical section for wrapping up the support frame, institute It states between dust-proof lips and the motor body.
9. engine oil seal according to claim 1, which is characterized in that
The engine is the engine using methanol as main fuel.
CN201721643339.9U 2017-11-30 2017-11-30 A kind of engine oil seal Active CN207569198U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721643339.9U CN207569198U (en) 2017-11-30 2017-11-30 A kind of engine oil seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721643339.9U CN207569198U (en) 2017-11-30 2017-11-30 A kind of engine oil seal

Publications (1)

Publication Number Publication Date
CN207569198U true CN207569198U (en) 2018-07-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721643339.9U Active CN207569198U (en) 2017-11-30 2017-11-30 A kind of engine oil seal

Country Status (1)

Country Link
CN (1) CN207569198U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112606519A (en) * 2020-12-08 2021-04-06 安徽信盟装备股份有限公司 Laminating machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112606519A (en) * 2020-12-08 2021-04-06 安徽信盟装备股份有限公司 Laminating machine
CN112606519B (en) * 2020-12-08 2023-08-04 安徽信盟装备股份有限公司 Laminating machine

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Address after: Room 612, building 1, 1760 Jiangling Road, Binjiang District, Hangzhou City, Zhejiang Province

Patentee after: Zhejiang Geely Remote New Energy Commercial Vehicle Group Co.,Ltd.

Country or region after: China

Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd.

Address before: Room 612, building 1, 1760 Jiangling Road, Binjiang District, Hangzhou City, Zhejiang Province

Patentee before: ZHEJIANG GEELY NEW ENERGY COMMERCIAL VEHICLE GROUP Co.,Ltd.

Country or region before: China

Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd.

Address after: Room 612, building 1, 1760 Jiangling Road, Binjiang District, Hangzhou City, Zhejiang Province

Patentee after: ZHEJIANG GEELY NEW ENERGY COMMERCIAL VEHICLE GROUP Co.,Ltd.

Country or region after: China

Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd.

Address before: Room 612, building 1, 1760 Jiangling Road, Binjiang District, Hangzhou City, Zhejiang Province

Patentee before: ZHEJIANG GEELY NEW ENERGY COMMERCIAL VEHICLES Co.,Ltd.

Country or region before: China

Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd.

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Effective date of registration: 20240301

Address after: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District

Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd.

Country or region after: China

Patentee after: Zhejiang Geely Remote New Energy Commercial Vehicle Group Co.,Ltd.

Patentee after: Tianjin Alcohol Hydrogen Research and Development Co.,Ltd.

Address before: Room 612, building 1, 1760 Jiangling Road, Binjiang District, Hangzhou City, Zhejiang Province

Patentee before: Zhejiang Geely Remote New Energy Commercial Vehicle Group Co.,Ltd.

Country or region before: China

Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd.

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