CN105156679A - Dustproof sealed structure of clutch slave cylinder assembly - Google Patents
Dustproof sealed structure of clutch slave cylinder assembly Download PDFInfo
- Publication number
- CN105156679A CN105156679A CN201510571345.7A CN201510571345A CN105156679A CN 105156679 A CN105156679 A CN 105156679A CN 201510571345 A CN201510571345 A CN 201510571345A CN 105156679 A CN105156679 A CN 105156679A
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- dust
- proof cover
- cylinder assembly
- clutch slave
- proof
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Abstract
The invention discloses a dustproof sealed structure of a clutch slave cylinder assembly. A first annular groove is formed in a push rod of the structure, a circumferential front annular protrusion is arranged on the inner wall of the head of a dust cover, the front annular protrusion is clamped in the first annular groove, and the front annular protrusion abuts against a shaft shoulder of a threaded section of the push rod. According to the dustproof sealed structure, relative sliding does not occur between the dust cover and the push rod, the dust cover does not slide relative to the threaded section, external mud, water and impurities are effectively isolated and prevented from entering the interior of a cylinder body, and failure of the clutch slave cylinder assembly caused by interior corrosion of the cylinder body or abrasion of a packing cup is avoided.
Description
Technical field
The invention belongs to vehicular clutch field, particularly a kind of clutch slave cylinder assembly dust-proof sealing structure.
Background technique
Clutch slave cylinder assembly is very important actuator in on-off control mechanism, and pressure energy is converted into mechanical energy by it, makes clutch be separated fork motion, realizes clutch separation and combination.Mainly apply to hydraulicdriven clutch system.
Dust-proof cover is as the parts of on clutch slave cylinder assembly, and it enters in clutch slave cylinder cylinder body for preventing the extraneous impurity such as sand, mud, water, avoids impurity, clutch slave cylinder assembly failure that the problem such as leather cup wearing and tearing, corrosion that muddy water causes causes.Therefore, dust-proof sealing structure is extremely important for clutch slave cylinder assembly reliability and working life.
As shown in Figure 1 to Figure 3, sealing configuration is made up of cylinder body 101, dust-proof cover 102, push rod 103 3 parts existing clutch slave cylinder assembly dust-proof sealing structure.Be wherein by the groove on cylinder body 101 and dust-proof cover 102 clamping between cylinder body 101 and dust-proof cover 102, the other end is that dust-proof cover 102 coordinates with push rod 103 surface transition and forms cylinder interior sealed environment, with external environs.There is following defect in this sealing configuration:
On the one hand, push rod surface (see Fig. 3) is affixed on by dust-proof cover tightening force, when dividing pump work, along with push rod 103 moves between dust-proof cover 102 and push rod 103, have relative sliding between dust-proof cover 102 and push rod 103, dust-proof cover 102 fits with the thread section of push rod 103 even sometimes.It is inner that above-mentioned relative movement between the two easily causes outside mud, water impurity enters cylinder body 101, causes point pump assembly cylinder body 101 internal corrosion or leather cup wearing and tearing, even cause wheel cylinder assembly failure.
On the other hand, dust-proof cover 102 and cylinder body 101 form sealing configuration (see Fig. 2) by interface arrangment, its cylinder body 101 has a groove, dust-proof cover 102 is directly stuck in groove, the tightening force of dust-proof cover 102 self is relied on to be close in groove, but its root is not close to cylinder body 101, in wheel cylinder working procedure, there is dust-proof cover 102 by the risk pulled.
Summary of the invention
Technical problem to be solved by this invention is to provide one and avoids, between dust-proof cover and push rod, relative sliding occurs, and preventing pollution thing enters the dust-proof sealing structure that cylinder body causes clutch slave cylinder assembly failure.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
A kind of clutch slave cylinder assembly dust-proof sealing structure comprises cylinder body, dust-proof cover and push rod, outer wall between the polished rod section of described push rod and thread section offers circumferential first circular groove, the head inwall of described dust-proof cover is provided with Zhou Xiangqian annular protrusion, and this front annular protrusion is connected in described first circular groove; Described front annular protrusion extends to the head of described dust-proof cover and the joint of wall portion from the head end of described dust-proof cover, and one end that this front annular protrusion is positioned at described dust-proof cover head end is resisted against on the shaft shoulder that described first circular groove and described push rod thread section formed; Described front annular protrusion extends between the shaft shoulder that one end of described dust-proof cover head and wall portion joint and described first circular groove and described push rod polished rod section formed and is provided with axial clearance.
Preferably, the afterbody inwall of described dust-proof cover is provided with Zhou Xianghou annular protrusion, the outer wall of described cylinder body offers circumferential second circular groove, described rear annular protrusion is connected in described second circular groove; The outer wall that the afterbody of described dust-proof cover is relative with described rear annular protrusion offers circumference the 3rd circular groove, ring-shaped clip is connected in the 3rd circular groove.
Preferably, be resisted against on the end face of described cylinder body inside this dust-proof cover wall portion of described dust-proof cover afterbody.
Preferably, the end of cylinder body described in the interior side compression of described dust-proof cover afterbody and wall portion joint.
Preferably, described rear annular protrusion and described second circular groove interference fit.
Preferably, the wall portion dual damascene shape ringwise of described dust-proof cover, is respectively the first trough, primary peak, the second trough and secondary peak from afterbody to the head of this dust-proof cover.
Preferably, the equal diameters of the annular the lowest point of described first trough and described second trough.
Preferably, the diameter of the annular the lowest point of described first trough is less than the internal diameter of described cylinder body, and is greater than the polished rod section external diameter of described push rod.
Preferably, the annular crest equal diameters of described primary peak and described secondary peak.
Preferably, the annular crest diameter of described primary peak is greater than the external diameter of described cylinder body.
A kind of clutch slave cylinder assembly dust-proof sealing structure provided by the present invention, its push rod offers the first circular groove, the head inwall of dust-proof cover is provided with Zhou Xiangqian annular protrusion, and this front annular protrusion is connected in the first circular groove, and front annular protrusion is resisted against the shaft shoulder place of push rod thread section.Relative sliding can not occur between dust-proof cover and push rod, more can not opposite thread section slide, effectively isolated outside mud, water, impurity enter cylinder interior, avoid cylinder interior corrosion, inefficacy that leather cup weares and teares the clutch slave cylinder assembly caused.
Accompanying drawing explanation
Fig. 1 is the sectional view of existing clutch slave cylinder assembly dust-proof sealing structure;
Fig. 2 is the clamping partial view of cylinder body and dust-proof cover in existing clutch slave cylinder assembly dust-proof sealing structure;
Fig. 3 is the partial view of dust-proof cover and push rod in existing clutch slave cylinder assembly dust-proof sealing structure;
The explosive view of the clutch slave cylinder assembly dust-proof sealing structure that Fig. 4 provides for the embodiment of the present invention;
The plan view of dust-proof cover in the clutch slave cylinder assembly dust-proof sealing structure that Fig. 5 provides for the embodiment of the present invention;
The sectional view of the clutch slave cylinder assembly dust-proof sealing structure that Fig. 6 provides for the embodiment of the present invention;
The clamping partial view of cylinder body and dust-proof cover in the clutch slave cylinder assembly dust-proof sealing structure that Fig. 7 provides for the embodiment of the present invention;
The clamping partial view of dust-proof cover and push rod in the clutch slave cylinder assembly dust-proof sealing structure that Fig. 8 provides for the embodiment of the present invention.
In Fig. 1 to Fig. 3, reference character is: 101 cylinder bodies, 102 dust-proof cover, 103 push rods.
In Fig. 4 to Fig. 8, reference character is: annular protrusion, 6 rear annular protrusion, the 7th second ring groove, 8 the 3rd circular grooves, 9 ring-shaped clips before 1 cylinder body, 2 dust-proof cover, 21 first troughs, 22 primary peaks, 23 second troughs, 24 secondary peaks, 3 push rods, 4 first circular grooves, 5.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
As shown in Figure 4 and Figure 6, a kind of clutch slave cylinder assembly dust-proof sealing structure comprises cylinder body 1, dust-proof cover 2 and push rod 3.As shown in Figure 4, the outer wall between the polished rod section of push rod 3 and thread section offers circumferential first circular groove 4.As shown in Figure 6 and Figure 8, the head inwall of dust-proof cover 2 is provided with Zhou Xiangqian annular protrusion 5, this front annular protrusion 5 is connected in the first circular groove 4.As shown in Figure 8, front annular protrusion 5 extends to the head of dust-proof cover 2 and the joint of wall portion from the head end of dust-proof cover 2, and one end that this front annular protrusion 5 is positioned at dust-proof cover 2 head end is resisted against on the shaft shoulder that the first circular groove 4 and push rod 3 thread section formed.Front annular protrusion 5 extends between the shaft shoulder that one end of dust-proof cover 2 head and wall portion joint and the first circular groove 4 and push rod 3 polished rod section formed and is provided with axial clearance.Structure like this, the rubber contractile force of dust-proof cover 2 itself is relied on tightly to be clamped in the first circular groove 4, relative sliding can not be there is between dust-proof cover 2 and push rod 3, more can not opposite thread section slide, effectively isolated outside mud, water, impurity enter cylinder interior, avoid cylinder interior corrosion, inefficacy that leather cup weares and teares the clutch slave cylinder assembly caused.
A kind of embodiment, on above-described embodiment basis, as shown in Figure 6 and Figure 7, the afterbody inwall of dust-proof cover 2 is provided with Zhou Xianghou annular protrusion 6.As shown in Figure 4, the outer wall of cylinder body 1 offers circumferential second circular groove 7.As shown in Figure 6 and Figure 7, rear annular protrusion 6 is connected in the second circular groove 7.As shown in Figure 5, the outer wall that the afterbody of dust-proof cover 2 is relative with rear annular protrusion 6 offers circumference the 3rd circular groove 8.As shown in Figure 7, ring-shaped clip 9 (preferred annular spring clip) is connected in the 3rd circular groove 8.Cylinder body 1 and dust-proof cover 2 increase ring-shaped clip 9 in access section, when avoiding push rod 3 to move, reduce the risk that dust-proof cover 2 is torn, and sealing are more tight.In order to further lift-off seal, preferably, be resisted against on the end face of cylinder body 1 inside this dust-proof cover wall portion of dust-proof cover 2 afterbody.Further preferably, the inner side of dust-proof cover 2 afterbody and wall portion joint compresses the end of cylinder body 1.In order to ensure the soundness of clamping, preferably, rear annular protrusion 6 and the second circular groove 7 interference fit.
Another embodiment, on above-described embodiment basis, as shown in Figure 5, owing to have employed above-mentioned sealing configuration, so the wall portion of dust-proof cover 2 can be designed to circular double corrugated, be respectively the first trough 21, primary peak 22, second trough 23 and secondary peak 24 from afterbody to the head of this dust-proof cover 2.So under the prerequisite ensureing dust-proof cover 2 contractibility and ductility, the volume of dust-proof cover 2 can be reduced, reduce the use of material, reduce cost of production.In order to ensure dust-proof cover 2 uniform shrinkage and extension, preferably, the equal diameters of the annular the lowest point of the first trough 21 and the second trough 23, the annular crest equal diameters of primary peak 22 and secondary peak 24.In order to anti-throw-out lever 3 dust-proof cover 2 when moving does not contact with push rod 3 and produces surface friction drag, so the diameter of the annular the lowest point of the first trough 21 and the second trough 23 is less than the internal diameter of cylinder body 1, and is greater than the polished rod section external diameter of push rod 3.In order to promote contractibility and the ductility of dust-proof cover 2 further, so the annular crest diameter of primary peak 22 and secondary peak 24 is greater than the external diameter of cylinder body 1.
In sum, content of the present invention is not limited in the above-described embodiments, and those skilled in the art can propose other mode of execution easily according to guiding theory of the present invention, and these mode of executions all comprise within the scope of the present invention.
Claims (10)
1. a clutch slave cylinder assembly dust-proof sealing structure, comprise cylinder body, dust-proof cover and push rod, it is characterized in that: the outer wall between the polished rod section of described push rod and thread section offers circumferential first circular groove, the head inwall of described dust-proof cover is provided with Zhou Xiangqian annular protrusion, and this front annular protrusion is connected in described first circular groove; Described front annular protrusion extends to the head of described dust-proof cover and the joint of wall portion from the head end of described dust-proof cover, and one end that this front annular protrusion is positioned at described dust-proof cover head end is resisted against on the shaft shoulder that described first circular groove and described push rod thread section formed; Described front annular protrusion extends between the shaft shoulder that one end of described dust-proof cover head and wall portion joint and described first circular groove and described push rod polished rod section formed and is provided with axial clearance.
2. clutch slave cylinder assembly dust-proof sealing structure according to claim 1, it is characterized in that: the afterbody inwall of described dust-proof cover is provided with Zhou Xianghou annular protrusion, the outer wall of described cylinder body offers circumferential second circular groove, described rear annular protrusion is connected in described second circular groove; The outer wall that the afterbody of described dust-proof cover is relative with described rear annular protrusion offers circumference the 3rd circular groove, ring-shaped clip is connected in the 3rd circular groove.
3. clutch slave cylinder assembly dust-proof sealing structure according to claim 2, is characterized in that: be resisted against on the end face of described cylinder body inside this dust-proof cover wall portion of described dust-proof cover afterbody.
4. clutch slave cylinder assembly dust-proof sealing structure according to claim 3, is characterized in that: the end of cylinder body described in the interior side compression of described dust-proof cover afterbody and wall portion joint.
5. clutch slave cylinder assembly dust-proof sealing structure according to claim 4, is characterized in that: described rear annular protrusion and described second circular groove interference fit.
6. clutch slave cylinder assembly dust-proof sealing structure according to any one of claim 1 to 5, it is characterized in that: the wall portion dual damascene shape ringwise of described dust-proof cover, is respectively the first trough, primary peak, the second trough and secondary peak from afterbody to the head of this dust-proof cover.
7. clutch slave cylinder assembly dust-proof sealing structure according to claim 6, is characterized in that: the equal diameters of the annular the lowest point of described first trough and described second trough.
8. clutch slave cylinder assembly dust-proof sealing structure according to claim 7, is characterized in that: the diameter of the annular the lowest point of described first trough is less than the internal diameter of described cylinder body, and is greater than the polished rod section external diameter of described push rod.
9. clutch slave cylinder assembly dust-proof sealing structure according to claim 8, is characterized in that: the annular crest equal diameters of described primary peak and described secondary peak.
10. clutch slave cylinder assembly dust-proof sealing structure according to claim 8, is characterized in that: the annular crest diameter of described primary peak is greater than the external diameter of described cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510571345.7A CN105156679A (en) | 2015-09-09 | 2015-09-09 | Dustproof sealed structure of clutch slave cylinder assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510571345.7A CN105156679A (en) | 2015-09-09 | 2015-09-09 | Dustproof sealed structure of clutch slave cylinder assembly |
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| Publication Number | Publication Date |
|---|---|
| CN105156679A true CN105156679A (en) | 2015-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510571345.7A Pending CN105156679A (en) | 2015-09-09 | 2015-09-09 | Dustproof sealed structure of clutch slave cylinder assembly |
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| CN (1) | CN105156679A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327510A (en) * | 2016-04-29 | 2017-11-07 | 舍弗勒技术股份两合公司 | Clutch driven plate and clutch |
| CN108006106A (en) * | 2017-12-04 | 2018-05-08 | 奇瑞汽车股份有限公司 | A kind of automatic clutch operating system and its change cylinder diameter clutch working cylinder |
| CN110185717A (en) * | 2019-05-22 | 2019-08-30 | 安徽江淮汽车集团股份有限公司 | Clutch master cylinder structure, clutch assembly and automobile |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2168119A (en) * | 1984-10-04 | 1986-06-11 | Kugelfischer G Schaefer & Co | A master cylinder |
| JPH01216125A (en) * | 1987-06-19 | 1989-08-30 | Alfred Teves Gmbh | Master cylinder |
| CN201588888U (en) * | 2009-10-21 | 2010-09-22 | 浙江吉利汽车有限公司 | Novel hydraulic clutch slave cylinder |
| CN202360638U (en) * | 2011-09-09 | 2012-08-01 | 芜湖恒坤汽车部件有限公司 | Clutch slave cylinder assembly provided with fixed edges on sides |
| CN202732321U (en) * | 2012-08-14 | 2013-02-13 | 宁波神丰汽车部件有限公司 | Clutch slave cylinder |
| CN102996666A (en) * | 2012-11-29 | 2013-03-27 | 浙江吉利汽车研究院有限公司杭州分公司 | Clutch slave cylinder |
| CN203477127U (en) * | 2013-09-02 | 2014-03-12 | 瑞立集团瑞安汽车零部件有限公司 | Clutch slave cylinder capable of assisting in vacuum oil injection |
| CN103953662A (en) * | 2014-05-14 | 2014-07-30 | 安徽江淮汽车股份有限公司 | Abnormal-sound-preventing clutch working cylinder assembly |
-
2015
- 2015-09-09 CN CN201510571345.7A patent/CN105156679A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2168119A (en) * | 1984-10-04 | 1986-06-11 | Kugelfischer G Schaefer & Co | A master cylinder |
| JPH01216125A (en) * | 1987-06-19 | 1989-08-30 | Alfred Teves Gmbh | Master cylinder |
| CN201588888U (en) * | 2009-10-21 | 2010-09-22 | 浙江吉利汽车有限公司 | Novel hydraulic clutch slave cylinder |
| CN202360638U (en) * | 2011-09-09 | 2012-08-01 | 芜湖恒坤汽车部件有限公司 | Clutch slave cylinder assembly provided with fixed edges on sides |
| CN202732321U (en) * | 2012-08-14 | 2013-02-13 | 宁波神丰汽车部件有限公司 | Clutch slave cylinder |
| CN102996666A (en) * | 2012-11-29 | 2013-03-27 | 浙江吉利汽车研究院有限公司杭州分公司 | Clutch slave cylinder |
| CN203477127U (en) * | 2013-09-02 | 2014-03-12 | 瑞立集团瑞安汽车零部件有限公司 | Clutch slave cylinder capable of assisting in vacuum oil injection |
| CN103953662A (en) * | 2014-05-14 | 2014-07-30 | 安徽江淮汽车股份有限公司 | Abnormal-sound-preventing clutch working cylinder assembly |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327510A (en) * | 2016-04-29 | 2017-11-07 | 舍弗勒技术股份两合公司 | Clutch driven plate and clutch |
| CN108006106A (en) * | 2017-12-04 | 2018-05-08 | 奇瑞汽车股份有限公司 | A kind of automatic clutch operating system and its change cylinder diameter clutch working cylinder |
| CN108006106B (en) * | 2017-12-04 | 2019-09-10 | 奇瑞汽车股份有限公司 | A kind of automatic clutch operating system and its become cylinder diameter clutch working cylinder |
| CN110185717A (en) * | 2019-05-22 | 2019-08-30 | 安徽江淮汽车集团股份有限公司 | Clutch master cylinder structure, clutch assembly and automobile |
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| C06 | Publication | ||
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151216 |