CN201621284U - Sealing structure between driving shaft middle shaft and dust cover for automobile - Google Patents
Sealing structure between driving shaft middle shaft and dust cover for automobile Download PDFInfo
- Publication number
- CN201621284U CN201621284U CN2010203010375U CN201020301037U CN201621284U CN 201621284 U CN201621284 U CN 201621284U CN 2010203010375 U CN2010203010375 U CN 2010203010375U CN 201020301037 U CN201020301037 U CN 201020301037U CN 201621284 U CN201621284 U CN 201621284U
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- dust
- proof cover
- jack shaft
- dust cover
- fixing part
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Abstract
The utility model provides a sealing structure between a driving shaft middle shaft and a dust cover for an automobile, which belongs to the technical field of automobiles, solves the problems that the sealing of the joint of the existing middle shaft and the dust cover is poor to lead to the grease leakage, and is characterized in that the dust cover is of a tapered rubber sleeve and is provided with a small-diameter fixing part, and the middle shaft is provided with a sealing part; and the dust cover is sleeved on the middle shaft. The sealing structure comprises an annular locking component sleeved at the outer side of the small-diameter fixing part of the dust cover, wherein the dust cover is buckled on the sealing part of the middle shaft by the locking component, and annular convex and concave shapes are arranged on the surface of the sealing part of the middle shaft. The sealing structure between the driving shaft middle shaft and the dust cover for the automobile can effectively change the shape of the contact surface between the middle shaft and the dust cover and improve the contact area so as to achieve the purpose of improving the sealing performance.
Description
Technical field
The utility model belongs to automobile technical field, particularly relates to the sealing configuration between a kind of automobile driving axle jack shaft and the dust-proof cover.
Background technique
The automobile driving axle assembly comprises jack shaft and is positioned at the coupling shaft at jack shaft two ends that constant velocity universal joint is that the axle that two axis do not overlap is coupled together, and makes the mechanism of diaxon with the unequal angular velocity transmitting movement, is the vitals in the car drivetrain system.Its effect is that the power of motor is delivered to the driving wheel of automobile from speed changer, satisfies the requirement of car transmission shaft outer end corner; The power of motor is passed to wheel steadily, reliably; Beating of the compensation inner suspension of car.
Automobile relies on the dust-proof cover sealing with the constant velocity driving shaft universal joint, and for example, Chinese patent once disclosed a kind of dust cover for constant-velocity universal joint [Chinese patent application number: 200710089521; Publication number: CN101046229A], it comprises big footpath fixing part, path fixing part and bellows.In conjunction with Figure of description as can be known, have an annular groove on the sealed department of jack shaft, path fixing part inwall has the annular bead that is complementary with annular groove, makes the sealed department of path fixing part and annular groove form sealing.Lubricating grease is housed in the dust-proof cover, and the poorly sealed or damaged meeting of dust-proof cover causes lubricating grease to be revealed, and lubricating grease reduces the wearing and tearing that can aggravate universal joint, in case the universal joint wearing and tearing, whole drive shaft assembly will lose efficacy.Therefore, the sealability of dust-proof cover directly influences the life-span of constant velocity driving shaft, because seal failure causes the fault of whole live axle inefficacy to account for the majority of live axle fault.The test of dust-proof cover at present mainly contains following 3: high temperature test, low temperature test and swell increment test; And do not consider the sealability at dust-proof cover and live axle jack shaft connecting end place about the test of dust-proof cover, because dust-proof cover causes the fault of lubricating grease leakage of common occurrence with the place's seal failure of live axle jack shaft connecting end.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of increase grease flow dynamic resistance, improves the automobile driving axle jack shaft of sealing and the sealing configuration between the dust-proof cover.
The purpose of this utility model can realize by following technical proposal: the sealing configuration between a kind of automobile driving axle jack shaft and the dust-proof cover, and described dust-proof cover is tapered rubber sleeve, has the path fixing part; Described jack shaft has sealed department, above-mentioned dust-proof cover is set on the jack shaft, it is characterized in that, this sealing configuration comprises the latch assembly of an annular in the outside of the path fixing part that is socketed on described dust-proof cover, this latch assembly is buckled in described dust-proof cover on the sealed department of described jack shaft, and the sealed department surface of described jack shaft has concaveconvex shape in the form of a ring.
In above-mentioned automobile driving axle jack shaft and the sealing configuration between the dust-proof cover, described latch assembly comprises and is positioned at the curved locking ring in the path fixing part outside that described locking ring is provided with the lock bolt that connects the locking ring two ends.
In above-mentioned automobile driving axle jack shaft and the sealing configuration between the dust-proof cover, be provided with two on the described sealed department at least and axially be set up in parallel annular groove.
In above-mentioned automobile driving axle jack shaft and the sealing configuration between the dust-proof cover, the quantity of described annular groove is three
In above-mentioned automobile driving axle jack shaft and the sealing configuration between the dust-proof cover, described path fixing part inboard has an annular bead, and this annular bead embeds in the above-mentioned annular groove.
In above-mentioned automobile driving axle jack shaft and the sealing configuration between the dust-proof cover, described path fixing part inboard has three annular bead, and this annular bead is corresponding one by one with above-mentioned annular groove and embed in the annular groove.
Compared with prior art, sealing configuration between this automobile driving axle jack shaft and the dust-proof cover effectively changes the shape of the surface of contact between jack shaft and the dust-proof cover, and area of contact between the two, reach the purpose of the sealing that improves dust-proof cover and jack shaft joint, thereby reduced the quantity that causes live axle to lose efficacy because of sealing problem greatly, improved the durability that drives assembly
Description of drawings
Fig. 1 is the structural representation of the sealing configuration between automobile driving axle jack shaft and the dust-proof cover.
Fig. 2 is the structural representation of jack shaft.
Fig. 3 is the structural representation of dust-proof cover among the embodiment one.
Fig. 4 is the structural representation of dust-proof cover among the embodiment two.
Among the figure, 1, jack shaft; 11, sealed department; 12, annular groove; 2, dust-proof cover; 21, path fixing part; 22, annular bead; 23, bellows; 3, latch assembly.
Embodiment
Below be specific embodiment of the utility model and in conjunction with 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
As Fig. 1, Fig. 2 and shown in Figure 3, drive shaft assembly comprises jack shaft 1 and is positioned at the coupling shaft at jack shaft 1 two ends, and coupling shaft and jack shaft 1 link to each other by constant velocity universal joint.
As shown in Figure 2, have sealed department 11 on the jack shaft 1, dust-proof cover 2 is tapered rubber sleeve, has path fixing part 21, big footpath fixing part and is connected the bellows 23 of path fixing part 21 with big footpath fixing part.Big footpath fixing part sealing and fixing is on universal joint, and path fixing part 21 is buckled on the sealed department 11 of jack shaft 1.
As shown in Figure 1, this sealing configuration comprises latch assembly 3 and the annular groove 12 and the annular bead 22 of an annular in the outside of the path fixing part 21 that is socketed on dust-proof cover 2.Latch assembly 3 comprises and is positioned at the curved locking ring in path fixing part 21 outsides, and locking ring is provided with the lock bolt that connects the locking ring two ends, and when tighten lock bolt the two ends of locking ring apart from dwindling.
As shown in Figures 2 and 3, be provided with two annular grooves that axially are set up in parallel 12 at least on sealed department 11 surfaces of jack shaft 1, the quantity of the annular groove 12 that present embodiment provides is three, makes sealed department 11 surfaces of jack shaft 1 be concaveconvex shape.Path fixing part 21 inboards have an annular bead 22, annular bead 22 is annular groove 12 places that integral structure and this annular bead 22 are resisted against sealed department 11 with dust-proof cover 2, annular bead 22 embeds in the annular groove 12 when tightening lock bolt, thereby effectively raise the area of contact between jack shaft 1 and the dust-proof cover 2, increase the grease flow dynamic resistance, improved sealing.
Embodiment two
As shown in Figure 4, present embodiment is basic identical with embodiment one structure and principle, different place is: path fixing part 21 inboards are provided with the annular bead 22 of three axially-aligned, this annular bead 22 corresponding one by one with above-mentioned annular groove 12 and under the effect of latch assembly 3 annular bead 22 embed in the annular grooves 12.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used jack shaft 1 morely; Sealed department 11; Annular groove 12; Dust-proof cover 2; Path fixing part 21; Annular bead 22; Bellows 23; Latch assembly 3 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (6)
1. the sealing configuration between an automobile driving axle jack shaft (1) and the dust-proof cover (2), described dust-proof cover (2) is tapered rubber sleeve, has path fixing part (21); Described jack shaft (1) has sealed department (11), above-mentioned dust-proof cover (2) is set on the jack shaft (1), it is characterized in that, this sealing configuration comprises the latch assembly (3) of an annular in the outside of the path fixing part (21) that is socketed on described dust-proof cover (2), this latch assembly (3) is buckled in described dust-proof cover (2) on the sealed department (11) of described jack shaft (1), and sealed department (11) surface of described jack shaft (1) has concaveconvex shape in the form of a ring.
2. the sealing configuration between automobile driving axle jack shaft according to claim 1 (1) and the dust-proof cover (2), it is characterized in that, described latch assembly (3) comprises and is positioned at the curved locking ring in path fixing part (21) outside that described locking ring is provided with the lock bolt that connects the locking ring two ends.
3. the sealing configuration between automobile driving axle jack shaft according to claim 1 and 2 (1) and the dust-proof cover (2) is characterized in that, is provided with two on the described sealed department (11) at least and axially is set up in parallel annular groove (12).
4. the sealing configuration between automobile driving axle jack shaft according to claim 3 (1) and the dust-proof cover (2) is characterized in that the quantity of described annular groove (12) is three.
5. the sealing configuration between automobile driving axle jack shaft according to claim 1 and 2 (1) and the dust-proof cover (2), it is characterized in that, described path fixing part (21) inboard has an annular bead (22), and this annular bead (22) embeds in the above-mentioned annular groove (12).
6. the sealing configuration between automobile driving axle jack shaft according to claim 1 and 2 (1) and the dust-proof cover (2), it is characterized in that, described path fixing part (21) inboard has three annular bead (22), and this annular bead (22) is corresponding one by one with above-mentioned annular groove (12) and embed in the annular groove (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203010375U CN201621284U (en) | 2010-01-19 | 2010-01-19 | Sealing structure between driving shaft middle shaft and dust cover for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203010375U CN201621284U (en) | 2010-01-19 | 2010-01-19 | Sealing structure between driving shaft middle shaft and dust cover for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201621284U true CN201621284U (en) | 2010-11-03 |
Family
ID=43024739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010203010375U Expired - Fee Related CN201621284U (en) | 2010-01-19 | 2010-01-19 | Sealing structure between driving shaft middle shaft and dust cover for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201621284U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691798A (en) * | 2011-03-25 | 2012-09-26 | 波音公司 | Joint sealing system |
-
2010
- 2010-01-19 CN CN2010203010375U patent/CN201621284U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691798A (en) * | 2011-03-25 | 2012-09-26 | 波音公司 | Joint sealing system |
| CN102691798B (en) * | 2011-03-25 | 2016-08-24 | 波音公司 | Joint sealing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20140119 |