CN206439411U - A kind of ball pin assembly dust cover - Google Patents
A kind of ball pin assembly dust cover Download PDFInfo
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- CN206439411U CN206439411U CN201621481745.5U CN201621481745U CN206439411U CN 206439411 U CN206439411 U CN 206439411U CN 201621481745 U CN201621481745 U CN 201621481745U CN 206439411 U CN206439411 U CN 206439411U
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- rubber
- groove
- dust cover
- saw
- clip
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Abstract
The utility model is related to technical field of automobile accessories, disclose a kind of ball pin assembly dust cover, it includes clip and installs groove clip installation groove (181) and saw-tooth ring saw-tooth ring (183), also include buffer groove (182) on ball pin assembly dust cover, the addendum flank addendum flank (1831) of saw-tooth ring saw-tooth ring (183) and the angle of dedendum flank dedendum flank (1832) are 120 °~160 °；The first skeleton (184) is provided between saw-tooth ring saw-tooth ring (183) and dust-proof cover outer surface, clip is installed groove clip and installed between groove (181) and block set borehole jack bore (1802) provided with the second skeleton (185), pass through the technical solution of the utility model, effectively it can prevent dust boot body from cracking, solve dust cover not stopping transport on pull bar dynamic, clip installs the technical problem that groove easily produces permanent deformation failure and raw edges defect with sawtooth ring position, improves the service life of ball pin assembly dust cover.
Description
Technical field
The utility model is related to technical field of automobile accessories, more particularly to a kind of ball pin assembly, discloses a kind of bulb
Pin assemblies dust cover.
Background technology
Automotive steering ball pin is to realize one of important component of transmission agency in vehicle, and it is by being arranged in the ball pin body of casting
Ball pin rotation, to realize the work of multiple parts in automobile.To ensure that ball pin can keep good service behaviour, ball pin
Outside often needs to set dust cover, to avoid dust from entering the influence caused in ball pin to ball pin performance；However, in the prior art
Ball pin dust cover, its with ball pin long-time rotate, dust cover easily because fatigue stress cracks, so as to cause its close
Sealing property degradation, loses dust-proof effect, and then cause the performance of ball pin and service life to be affected.
In the Chinese patent of application number " 201420699545.1 ", disclose entitled " automotive steering ball pin dust cover "
Utility model, what the automotive steering ball pin dust cover of the announcement was solved is that dust cover is rotated with the long-time of ball pin, dust cover with
Easily there is gap between ball pin, so as to cause its sealing property degradation, and then cause the performance of ball stud and use the longevity
Life is the problem of be affected, but its dust cover is shaped as back-off cup-shaped, its with ball stud rotate when, must have a direction receipts
To stretching, another relative direction is compressed, and there is the accumulation with use time, because of the effect of fatigue stress, prevents
Boot body is easily cracked, so as to cause its sealing property degradation, loses the defect of dust-proof effect, while clip is pacified
Dress groove easily produces permanent deformation failure and raw edges defect with sawtooth ring position.
The utility model is a kind of ball pin assembly dust cover, mainly by setting buffer groove on dust cover, is reduced
The deformation that ball stud is brought when rotating to ball stud, reduces the accumulation of fatigue stress, effectively prevents dust boot body from cracking,
Ensure its service life, while the clip in dust cover is installed inside the position of groove and saw-tooth ring provided with the first skeleton and second
Skeleton, it is dynamic to solve dust cover not stopping transport on pull bar, and clip, which installs groove and easily produces permanent deformation with sawtooth ring position, to be lost
The problem of effect and raw edges defect.
The content of the invention
The utility model is in the prior art, ball pin assembly dust boot body is easily cracked, and clip is installed recessed
Groove and the technical problem that sawtooth ring position easily produces permanent deformation failure and raw edges defect are anti-there is provided a kind of ball pin assembly
Dust hood, can reduce the accumulation for the deformation fatigue stress brought when ball stud is rotated to ball stud, effectively prevent dust boot body from producing
Raw crackle, it is ensured that its service life, while solving do not stop transport dynamic, clip installation groove and saw-tooth ring position of the dust cover on pull bar
Put the problem of easily producing permanent deformation failure and raw edges defect.
In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals：
A kind of ball pin assembly dust cover, including body of rubber, provided with set axis hole, set bore, rubber in body of rubber
Buffer groove is additionally provided with main body, buffer groove is arranged in the middle part of the outer surface between the set axis hole of body of rubber and set bore；
Cover axis hole and be provided with saw-tooth ring, saw-tooth ring is made up of 3~5 saw tooth profiles, and each saw tooth profile is by addendum flank and dedendum flank
The longitudinal section angle of composition, addendum flank and dedendum flank is 120 °~160 °, during assembling, saw-tooth ring and ball stud shaft installation portion interference
Coordinate, make it that its mutual bonding is more close using the elasticity of elastomeric material, the longitudinal section angle of addendum flank and dedendum flank
For 120 °~160 °, in the angular range, sealing effectiveness is not only can further improve, and ball stud can be avoided to work long hours
Under cause it to occur gap each other, reduce dust-proof effect.
Preferably, the inside of body of rubber also includes the first skeleton, the second skeleton, the first skeleton is located at outside body of rubber
Between surface and set axis hole, the second skeleton is located between body of rubber outer surface and set bore, and the first skeleton and the second skeleton are equal
For " L " shape, and " L " opening direction outwardly, the intensity of the installation portion of dust cover is enhanced using skeleton structure, so as to improve
The reliability and service life of dust cover.
Preferably, clip is additionally provided with body of rubber installs groove, clip installs the rubber that groove is located at set bore
At body outer surface, installed in body of rubber with clip at the arc surface that groove is connected, the inner surface of body of rubber is additionally provided with set
Seat groove, the longitudinal cross-section profile of block set groove contains right angle and set bore on a right angle and a fillet, longitudinal cross-section
Section is adjacent, when ball pin assembly dust cover and the assembling of bulb pin mount, is installed dust cover and ball stud using clip
Seat, which is fastenedly connected, to be integrated, and clip, which installs groove, is used for spacing clip, and block set groove coordinates with the boss on bulb pin mount,
Strengthen the sealing of whole assembling assembly, prevent the greasy dirt bisque in the external world from entering the main body mounting surface of ball stud, so as to play height
Imitate stable dust-proof effect.
Preferably, set axis hole is additionally provided with one section of smooth pipe inwall, body of rubber in addition to the saw tooth profile of saw-tooth ring
Arc surface is provided with the correspondence smooth pipe inwall of outer surface, the longitudinal section shape of arc surface is arc-shaped, the center of circle of circular arc
Positioned at the side of body of rubber inner surface, saw-tooth ring is interference fitted with ball stud shaft installation portion, made using the elasticity of elastomeric material
Obtain its mutual bonding more close, smooth pipe inwall is as standby fitting surface, after the saw tooth profile abrasion of saw-tooth ring,
Smooth pipe inwall continues to play a part of fitting surface, can effectively extend the service life of ball pin assembly dust cover, rubber master
The stress that the body of rubber at smooth pipe inwall can be reduced provided with arc surface at external surface correspondence smooth pipe inwall
Concentrate, effectively prevent dust cover from producing slight crack failures in this place.
The utility model is as a result of above technical scheme, with significant technique effect：Set on dust cover slow
Groove is rushed, the deformation that reduction ball stud is brought when rotating to ball stud reduces the accumulation of fatigue stress, effectively prevents dust cover sheet
Body is cracked, it is ensured that its service life, while the clip in dust cover is installed inside the position of groove and saw-tooth ring provided with the
One skeleton and the second skeleton, solve that dust cover not stopping transport on pull bar is dynamic, and clip is installed groove and easily produced with sawtooth ring position
The problem of raw permanent deformation failure and raw edges defect.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of A in Fig. 1.
Fig. 3 is the partial enlarged drawing of B in Fig. 1.
Fig. 4 is the partial enlarged drawing of C in Fig. 1.
When Fig. 5 is that dust cover is assembled with axle mounting seat, C partial enlarged drawing in Fig. 1.
The toponym that each number designation is referred in accompanying drawing is as follows：18- body of rubber, 181- clips install groove,
182- buffer grooves, 183- saw-tooth rings, 1831- addendum flanks, 1832- dedendum flanks, the skeletons of 184- first, the skeletons of 185- second, 186
Block set groove, 187- arc surfaces, 1801- sets axis hole, 1802- sets bore, 17- bulb pin mounts.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of ball pin assembly dust cover, as shown in Figure 1 to 4, including body of rubber 18, provided with set in body of rubber
Buffer groove 182 is additionally provided with axis hole 1801, set bore 1802, body of rubber 18, buffer groove 182 is arranged at set axis hole 1801
In the middle part of outer surface between set bore 1802；Cover axis hole 1801 and be provided with saw-tooth ring 183, saw-tooth ring 183 is by 3~5 sawtooth
Profile is constituted, and each saw tooth profile is made up of addendum flank 1831 and dedendum flank 1832, the longitudinal section folder of addendum flank and dedendum flank
Angle is 120 °~160 °, during assembling, and saw-tooth ring is interference fitted with ball stud shaft installation portion, causes it using the elasticity of elastomeric material
Mutual bonding is more close, and the longitudinal section angle of addendum flank and dedendum flank is 120 °~160 °, in the angular range, no
Sealing effectiveness is only can further improve, and ball stud can be avoided, which to work long hours down, causes it to occur gap each other, reduction is anti-
Dirt effect.
As shown in Figure 2 to 3, the inside of body of rubber also includes the first skeleton 184, the second skeleton 185, the first skeleton
184 are located between body of rubber outer surface and set axis hole 1801, and the second skeleton 185 is located at the outer surface of body of rubber 18 and set bore
Between 1802, the first skeleton 184 and the second skeleton 185 are " L " shape, and " L " opening direction outwardly, increased using skeleton structure
The strong intensity of the installation portion of dust cover, so as to improve the reliability and service life of dust cover.
As shown in Figure 1, Figure 3, clip is additionally provided with body of rubber groove 181 is installed, clip installs groove 181 and is located at block set
The outer surface of body of rubber 18 at hole 1802, as shown in Figure 4, Figure 5, installs groove 181 in body of rubber 18 and clip and is connected
Arc surface at, the inner surface of body of rubber 18 is additionally provided with block set groove 186, and the longitudinal cross-section profile of block set groove 186 contains
On one right angle and a fillet, longitudinal cross-section right angle with cover bore 1802 section it is adjacent, when ball pin assembly dust cover with
When bulb pin mount 17 is assembled, dust cover is fastenedly connected with bulb pin mount 17 using clip and is integrated, clip is installed
Groove 181 is used for spacing clip, and block set groove 186 coordinates with the boss on bulb pin mount 17, strengthens whole assembling assembly
Sealing, prevent the external world greasy dirt bisque enter ball stud main body mounting surface, so as to play the dust-proof effect of efficient stable.
As shown in figure 1, set axis hole 1801 is additionally provided with one section of smooth pipe inwall in addition to the saw tooth profile of saw-tooth ring 183,
Arc surface 187 is provided with the correspondence smooth pipe inwall of the outer surface of body of rubber 18, the longitudinal section shape of arc surface 187 is circle
Arcuation, the center of circle of circular arc is located at the side of body of rubber inner surface, and saw-tooth ring 183 is interference fitted with ball stud shaft installation portion, profit
Make it that its mutual bonding is more close with the elasticity of elastomeric material, smooth pipe inwall works as sawtooth as standby fitting surface
After the saw tooth profile abrasion of ring, smooth pipe inwall continues to play a part of fitting surface, can effectively extend ball pin assembly dust-proof
At the service life of cover, body of rubber outer surface correspondence smooth pipe inwall smooth pipe can be reduced provided with arc surface 187
The stress concentration of body of rubber at inwall, effectively prevents dust cover from producing slight crack failures in this place.
Embodiment 2
Substantially the same manner as Example 1, the present embodiment and the difference of embodiment 1 are：Buffer groove 182 on dust cover is not
Only one, but multiple buffer grooves 182 causes the longitudinal cross-section of dust cover 18 in wavy, to pass through multiple buffer grooves
182 can more effectively offset the deformational stress brought when ball stud is rotated to dust cover 18, the use of Promoting Layered Buffer groove 182
Life-span.
In a word, preferred embodiment of the present utility model is the foregoing is only, it is all according to present utility model application the scope of the claims institute
The equivalent changes and modifications of work, should all belong to the covering scope of the utility model patent.
Claims (4)
1. a kind of ball pin assembly dust cover, including body of rubber (18), in body of rubber (18) provided with set axis hole (1801),
Cover bore (1802), it is characterised in that：Buffer groove (182) is additionally provided with body of rubber (18), buffer groove (182) is arranged at
In the middle part of outer surface between the set axis hole (1801) and set bore (1802) of body of rubber (18)；Axis hole (1801) is covered provided with saw
Ring gear (183), saw-tooth ring (183) is made up of 3~5 saw tooth profiles, and each saw tooth profile is by addendum flank (1831) and lower tooth
Face (1832) is constituted, and the longitudinal section angle of addendum flank (1831) and dedendum flank (1832) is 120 °~160 °.
2. a kind of ball pin assembly dust cover according to claim 1, it is characterised in that：The inside of body of rubber (18) is also
Including the first skeleton (184), the second skeleton (185), the first skeleton (184) is located at body of rubber (18) outer surface and set axis hole
(1801) between, the second skeleton (185) is located between body of rubber (18) outer surface and set bore (1802).
3. a kind of ball pin assembly dust cover according to claim 1, it is characterised in that：Body of rubber is additionally provided with (18)
Clip installs groove (181), and clip installs body of rubber (18) outer surface that groove (181) is located at set bore (1802) place,
Installed in body of rubber (18) with clip at the arc surface that groove (181) is connected, the inner surface of body of rubber (18) is additionally provided with set
Seat groove (186), the longitudinal cross-section profile of block set groove (186) contains right angle on a right angle and a fillet, longitudinal cross-section
It is adjacent with the section of set bore (1802).
4. a kind of ball pin assembly dust cover according to claim 1, it is characterised in that：Axis hole (1801) is covered except sawtooth
Outside the saw tooth profile of ring (183), one section of smooth pipe inwall, body of rubber (18) outer surface correspondence smooth pipe inwall are additionally provided with
Place is provided with arc surface (187), and the longitudinal section shape of arc surface (187) is arc-shaped, and the center of circle of circular arc is located at body of rubber
(18) side of inner surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621481745.5U CN206439411U (en) | 2016-12-30 | 2016-12-30 | A kind of ball pin assembly dust cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621481745.5U CN206439411U (en) | 2016-12-30 | 2016-12-30 | A kind of ball pin assembly dust cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206439411U true CN206439411U (en) | 2017-08-25 |
Family
ID=59642569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621481745.5U Active CN206439411U (en) | 2016-12-30 | 2016-12-30 | A kind of ball pin assembly dust cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206439411U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266535A (en) * | 2018-02-02 | 2018-07-10 | 中国北方车辆研究所 | A kind of steering ball end pin dirt-proof boot |
| CN108275199A (en) * | 2018-02-02 | 2018-07-13 | 中国北方车辆研究所 | A kind of vehicle of setting low pressure line structure through walls |
-
2016
- 2016-12-30 CN CN201621481745.5U patent/CN206439411U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266535A (en) * | 2018-02-02 | 2018-07-10 | 中国北方车辆研究所 | A kind of steering ball end pin dirt-proof boot |
| CN108275199A (en) * | 2018-02-02 | 2018-07-13 | 中国北方车辆研究所 | A kind of vehicle of setting low pressure line structure through walls |
| CN108266535B (en) * | 2018-02-02 | 2023-08-22 | 中国北方车辆研究所 | Dust cover for steering ball pin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 18 Tieshan Road, Guilin City, Guangxi Zhuang Autonomous Region, 541004 Patentee after: Guangxi Mingxin Chassis Components Co., Ltd. Address before: No. 18 Tieshan Road, Guilin City, Guangxi Zhuang Autonomous Region, 541004 Patentee before: Wanxiang Qianchao (Guilin) Chassis Parts Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |