CN208203840U - A kind of corrosion resistant type release bearing - Google Patents
A kind of corrosion resistant type release bearing Download PDFInfo
- Publication number
- CN208203840U CN208203840U CN201820763524.XU CN201820763524U CN208203840U CN 208203840 U CN208203840 U CN 208203840U CN 201820763524 U CN201820763524 U CN 201820763524U CN 208203840 U CN208203840 U CN 208203840U
- Authority
- CN
- China
- Prior art keywords
- oil
- piston
- pump housing
- release bearing
- oil inlet
- 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
- 238000005260 corrosion Methods 0.000 title claims abstract description 38
- 230000007797 corrosion Effects 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 51
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 5
- 239000003755 preservative agent Substances 0.000 abstract description 2
- 230000002335 preservative effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 75
- 239000012530 fluid Substances 0.000 description 13
- 239000010985 leather Substances 0.000 description 3
- 239000013043 chemical agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006168 hydrated nitrile rubber Polymers 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Valves And Accessory Devices For Braking Systems (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model provides a kind of corrosion resistant type release bearing, belongs to technical field of automobile accessories.It solves existing its material of corrosion resistant type release bearing and does not pass through preservative treatment, easilys lead to the technical problems such as material breakage in use.This corrosion resistant type release bearing, including the pump housing, cylinder sleeve, oil pocket and piston, piston base is fixed with sealing ring, it is sealed end that one end that sealing ring and piston are fixed, which is the fixing end other end, middle part is equipped between fixing end and sealed end, there is deformation gap with the outer wall of the inner wall of the pump housing and cylinder sleeve respectively inside and outside middle part, the bottom of sealed end is equipped with sealing protrusion, two sides of two sealing protrusions respectively close to sealing ring, two sealing protrusions can be resisted against on oil pocket inner wall to two lateral bends and respectively respectively, be formed between two sealing protrusions by indent.The utility model has the braking corrosion for being resistant to flow into release bearing, thus the advantages of reaching the service life for extending release bearing.
Description
Technical field
The utility model belongs to technical field of automobile accessories, is related to a kind of corrosion resistant type release bearing.
Background technique
Release bearing is one of the important accessory on automobile, it can enable gearbox to be smoothly linked into gear, but existing
Release bearing largely without pass through anti-corrosion treatment so that release bearing is easy to will receive brake fluid in use
Corrosion.
Such as the release bearing in the resistance to mineral oil of one of Chinese patent literature [CN206397972U], including the pump housing
And cylinder body, with the housing of tubular on the pump housing, cylinder body is cylindrical and one end of cylinder body is installed in housing, housing and cylinder body it
Between there is oil pocket, the oil outlet of the pump housing, to being connected to, goes back sliding sleeve equipped with sliding sleeve, one end of sliding sleeve is plugged in cover with oil pocket outside cylinder body
Between shell and cylinder body, the lateral surface of sliding sleeve and the inner wall of housing are slidably and sealingly connected with, the medial surface of sliding sleeve and the lateral surface of cylinder body
It is slidably and sealingly connected with, the other end of sliding sleeve is connected with bearing assembly, and leather cup made of HNBR, skin are additionally provided between housing and cylinder body
Bowl is connected in the end of sliding sleeve, has the groove towards oil pocket in the middle part of leather cup, the two sides of leather cup respectively with the inner wall of housing and cylinder
The lateral surface of body is slidably and sealingly connected with.Although above structure has accomplished the air-tightness in holding oil pocket, but since its material does not have
Have by preservative treatment, so easilying lead to material breakage in use, there is serious security risk.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, proposes a kind of corrosion resistant type separation shaft
Hold, the utility model solve the technical issues of be the corrosivity for how making release bearing be resistant to brake fluid.
The purpose of this utility model can be realized by the following technical scheme:
A kind of corrosion resistant type release bearing, including the pump housing, cylinder sleeve, oil pocket and piston are arranged with bearing on the piston,
One end bottom that the piston is located in oil pocket is fixed with sealing ring, and one end that the sealing ring and piston are fixed is fixing end,
The other end of the sealing ring be sealed end, which is characterized in that between the fixing end and sealed end be equipped with middle part, it is described in
Between have deformation gap inside and outside portion with the outer wall of the inner wall of the pump housing and cylinder sleeve respectively, the bottom of the sealed end is equipped with two
A sealing protrusion relative to middle part protrusion, two sealing protrusions are respectively close in the outside and sealing ring of sealing ring
Side, on the inner wall that two sealing protrusions can be resisted against oil pocket to the corresponding curving of sealing ring and respectively respectively, described in two
It seals and is formed between protrusion by indent, the sealing protrusion can be to the deformation of corresponding side when the oil in oil pocket is squeezed by indent
Gap squeezes, and is electroplate with anti-corrosion layer on the pump housing.
When a certain amount of brake fluid enters oil pocket, the pressure that brake fluid generates can enter by indent, so that sealing ring produces
Raw deformation causes middle part to squeeze to deformation gap, to realize that oil pocket to sealing up, is reinforced the close of sealing protrusion by sealing ring
Envelope property structure, prevents brake fluid from going out to cause piston extension not in place from oil pocket internal leakage；Sealing protrusion is resisted against oil pocket inner wall
It can prevent extraneous air and sundries etc. from entering in oil pocket, prevent the brake fluid in oil pocket to be contaminated and oil pocket is caused to block；
Since brake fluid is made of corrosion class chemical agent, so anti-corrosion layer can protect the pump housing and cylinder sleeve to protect in use
Release bearing extends the service life of release bearing.
In above-mentioned corrosion resistant type release bearing, between the pump housing and cylinder sleeve, the piston is set in the oil pocket
It outer wall of cylinder jachet and can be moved along oil pocket, the side of the pump housing is equipped with oil injecting part, and the side of the oil injecting part offers and oil
The straight-through oil inlet passage one of chamber, the oil inlet passage one are opened up along the tangential direction of cylinder sleeve, the nozzle of the oil inlet passage one
It is sealed with ball, the other side of the oil injecting part offers oil inlet passage two, and the diameter of the oil inlet passage two is logical greater than oil inlet
The oil inlet direction of road one and oil inlet passage two is connected to oil inlet passage one, the channel of the oil inlet passage two and oil inlet passage one it
Between angle be obtuse angle.Due to oil inlet passage first is that being opened up along the tangential direction of cylinder sleeve, thus oil inlet passage two want with
The intersection of oil inlet passage one is opened and must individually be drilled from the other side of oil injecting part, and ball can block the hole being drilled, so that braking
Liquid enters in oil inlet passage two from oil inlet passage one, is avoided that brake fluid is directly impinging in oil pocket.
In above-mentioned corrosion resistant type release bearing, the top of the cylinder sleeve is fixed with the retaining ring of annular, the retaining ring
Internal ring wall is turned down to the bottom direction of piston, and the inner wall of the piston offers limiting slot, when piston along oil pocket to cylinder sleeve bottom
The retaining ring can be against on limiting slot when portion's movement.In the retraction cylinder sleeve that retaining ring can prevent piston excessive, have protection cylinder sleeve from
The effect being detached from the pump housing.
In above-mentioned corrosion resistant type release bearing, spring base, institute are equipped with the inner ring of bearing on the outer wall of the piston
It states and is equipped with reset spring between spring base and the pump housing, the both ends of the reset spring are born against on spring base and the pump housing.On
Reset spring can preferably be fixed by stating structure.
In above-mentioned corrosion resistant type release bearing, the sealing ring is made of ethylene propylene diene rubber.The material has good
Good corrosion proof function.
In above-mentioned corrosion resistant type release bearing, the anti-corrosion layer is by the pump housing, piston and cylinder sleeve by anodic oxygen
Change and is formed after nitrogen treatment.The structure can prevent the components such as the pump housing are premature under the immersion of brake fluid to be corroded, and can prolong
Long release bearing service life.
Compared with prior art, there is this corrosion resistant type release bearing tolerance to flow into the braking corrosion in release bearing,
The advantages of to reach the service life for extending release bearing.
Detailed description of the invention
Fig. 1 is that this corrosion resistant type release bearing faces schematic cross-sectional view.
Fig. 2 is the broken section overlooking structure diagram of this corrosion resistant type release bearing.
Fig. 3 is the enlarged structure schematic diagram in the portion A in Fig. 1.
In figure, 1, the pump housing；10, oil pocket；11, oil injecting part；12, oil inlet passage one；13, ball；14, oil inlet passage two；15,
Limiting slot；2, piston；3, bearing；4, sealing ring；40, fixing end；42, middle part；44, deformation gap；45, protrusion is sealed；46,
By indent；5, cylinder sleeve；6, retaining ring；7, spring base；8, reset spring.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in figures 1 and 3, corrosion resistant type release bearing 3 includes the pump housing 1, cylinder sleeve 5, oil pocket 10 and piston 2, piston 2
On be arranged with bearing 3, one end bottom that piston 2 is located in oil pocket 10 is fixed with sealing ring 4, sealing ring 4 and piston 2 it is fixed one
End is fixing end 40, and the other end of sealing ring 4 is sealed end, and middle part 42, middle part are equipped between fixing end 40 and sealed end
There is deformation gap 44 with the outer wall of the inner wall of the pump housing 1 and cylinder sleeve 5 respectively inside and outside 42, there are two the bottom of sealed end is set
Relative to the sealing protrusion 45 that middle part 42 protrudes, outside and sealing ring 4 of two sealing protrusions 45 respectively close to sealing ring 4
Inside, on the inner wall that two sealing protrusions 45 can be resisted against oil pocket 10 to the corresponding curving of sealing ring 4 and respectively respectively, two
It is formed between a sealing protrusion 45 by indent 46, protrusion 45 is sealed when the oil in oil pocket 10 is squeezed by indent 46 can be to corresponding one
The deformation gap 44 of side squeezes, and is electroplate with anti-corrosion layer on 1 component of the pump housing, anti-corrosion layer is to pass through the pump housing 1, piston 2 and cylinder sleeve 5
It is formed after crossing anodic oxidation and nitrogen treatment, sealing ring 4 is made of ethylene propylene diene rubber.
As depicted in figs. 1 and 2, between the pump housing 1 and cylinder sleeve 5, piston 2 is set in 5 outer wall of cylinder sleeve and can edge oil pocket 10
Oil pocket 10 it is mobile, the side of the pump housing 1 is equipped with oil injecting part 11, and it is logical that the side of oil injecting part 11 offers the oil inlet led directly to oil pocket 10
Road 1, oil inlet passage 1 are opened up along the tangential direction of cylinder sleeve 5, and the ferrule of oil inlet passage 1 has ball 13, note
The other side in oily portion 11 offers oil inlet passage 2 14, and the diameter of oil inlet passage 2 14 is greater than oil inlet passage 1 and oil inlet passage
2 14 are connected to oil inlet passage 1, and the angle between the channel of oil inlet passage 2 14 and the oil inlet direction of oil inlet passage 1 is
Obtuse angle.
As shown in Figure 1, the top of cylinder sleeve 5 is fixed with the retaining ring 6 of annular, the bottom direction of the internal ring wall of retaining ring 6 to piston 2
Fold, the inner wall of piston 2 offer limiting slot 15, and when cylinder sleeve 5 is moved along oil pocket 10 to 1 bottom of the pump housing, retaining ring 6 can be against
On limiting slot 15.
As shown in Figure 1, being equipped with spring base 7 with the inner ring of bearing 3 on the outer wall of piston 2, set between spring base 7 and the pump housing 1
There is reset spring 8, the both ends of reset spring 8 are born against on spring base 7 and the pump housing 1.
When a certain amount of brake fluid enters oil pocket 10, the pressure that brake fluid generates can enter by indent 46, so that sealing
4 generation deformation of circle causes middle part 42 to squeeze to deformation gap 44, to realize that sealing ring 4 to sealing up, reinforces oil pocket 10
The sealing structure for sealing protrusion 45, prevent brake fluid go out piston 2 is caused to stretch from 10 internal leakage of oil pocket it is not in place；It seals convex
Portion 45, which is resisted against 10 inner wall of oil pocket, can prevent extraneous air and sundries etc. from entering in oil pocket 10, prevent the braking in oil pocket 10
Liquid, which is contaminated, causes oil pocket 10 to block；Since brake fluid is made of corrosion class chemical agent, so anti-corrosion layer can be protected
The pump housing and cylinder sleeve protect release bearing in use, extend the service life of release bearing.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (6)
1. a kind of corrosion resistant type release bearing, including the pump housing, cylinder sleeve, oil pocket and piston, it is arranged with bearing on the piston, institute
It states one end bottom that piston is located in oil pocket and is fixed with sealing ring, one end that the sealing ring and piston are fixed is fixing end, institute
The other end for stating sealing ring is sealed end, which is characterized in that middle part, the centre are equipped between the fixing end and sealed end
There is deformation gap with the outer wall of the inner wall of the pump housing and cylinder sleeve respectively inside and outside portion, there are two the bottom of the sealed end is set
Relative to the sealing protrusion of middle part protrusion, two sealing protrusions are respectively close in the outside and sealing ring of sealing ring
Side, on the inner wall that two sealing protrusions can be resisted against oil pocket to the corresponding curving of sealing ring and respectively respectively, described in two
It seals and is formed between protrusion by indent, the sealing protrusion can be to the deformation of corresponding side when the oil in oil pocket is squeezed by indent
Gap squeezes, and is electroplate with anti-corrosion layer on the pump housing.
2. corrosion resistant type release bearing according to claim 1, which is characterized in that the oil pocket be located at the pump housing and cylinder sleeve it
Between, the piston is set in outer wall of cylinder jachet and can move along oil pocket, and the side of the pump housing is equipped with oil injecting part, the oil injecting part
Side offer with oil pocket lead directly to oil inlet passage one, the oil inlet passage one is opened up along the tangential direction of cylinder sleeve, described
The ferrule of oil inlet passage one has ball, and the other side of the oil injecting part offers oil inlet passage two, the oil inlet passage two
Diameter be greater than oil inlet passage one and oil inlet passage two and be connected to oil inlet passage one, the channel of the oil inlet passage two and oil inlet are led to
Angle between the oil inlet direction in road one is obtuse angle.
3. corrosion resistant type release bearing according to claim 2, which is characterized in that the top of the cylinder sleeve is fixed with annular
Retaining ring, the internal ring wall of the retaining ring turns down to the bottom direction of piston, and the inner wall of the piston offers limiting slot, works as cylinder sleeve
The retaining ring can be against on limiting slot when moving along oil pocket to pump housing bottom.
4. corrosion resistant type release bearing according to claim 1, which is characterized in that on the outer wall of the piston with bearing
It is equipped with spring base between inner ring, reset spring is equipped between the spring base and the pump housing, the both ends of the reset spring are supported respectively
It leans against on spring base and the pump housing.
5. corrosion resistant type release bearing according to claim 1, which is characterized in that the sealing ring is by ethylene propylene diene rubber
It is made.
6. corrosion resistant type release bearing according to claim 1, which is characterized in that the anti-corrosion layer is by the pump housing, work
Plug and cylinder sleeve are formed after anodic oxidation and nitrogen treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820763524.XU CN208203840U (en) | 2018-05-22 | 2018-05-22 | A kind of corrosion resistant type release bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820763524.XU CN208203840U (en) | 2018-05-22 | 2018-05-22 | A kind of corrosion resistant type release bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208203840U true CN208203840U (en) | 2018-12-07 |
Family
ID=64518022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820763524.XU Expired - Fee Related CN208203840U (en) | 2018-05-22 | 2018-05-22 | A kind of corrosion resistant type release bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208203840U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360243A (en) * | 2019-08-16 | 2019-10-22 | 浙江柏瑞汽配有限公司 | A kind of hydraulic pressure separating bearing piston left-hand thread structure |
| CN112159950A (en) * | 2020-09-10 | 2021-01-01 | 马鞍山市小沈车行 | Cylinder body nitriding treatment process |
-
2018
- 2018-05-22 CN CN201820763524.XU patent/CN208203840U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360243A (en) * | 2019-08-16 | 2019-10-22 | 浙江柏瑞汽配有限公司 | A kind of hydraulic pressure separating bearing piston left-hand thread structure |
| CN112159950A (en) * | 2020-09-10 | 2021-01-01 | 马鞍山市小沈车行 | Cylinder body nitriding treatment process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 314200, Cao 1083 Road, Cao Qiao street, Jiaxing, Zhejiang, Pinghu Patentee after: Zhejiang birui Auto Parts Co.,Ltd. Address before: 314214, Cao 1083 Road, Cao Qiao street, Jiaxing, Zhejiang, Pinghu Patentee before: ZHEJIANG BORRY AUTO PARTS Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181207 |