CN102518813A - Ball stud dust cover, ball stud assembly and automobile - Google Patents
Ball stud dust cover, ball stud assembly and automobile Download PDFInfo
- Publication number
- CN102518813A CN102518813A CN2011104376161A CN201110437616A CN102518813A CN 102518813 A CN102518813 A CN 102518813A CN 2011104376161 A CN2011104376161 A CN 2011104376161A CN 201110437616 A CN201110437616 A CN 201110437616A CN 102518813 A CN102518813 A CN 102518813A
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- Prior art keywords
- ball stud
- ball
- proof cover
- dust
- stud dust
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Abstract
The invention relates to automobile suspension systems, in particular to a ball stud dust cover and a ball stud assembly of a suspension system, and an automobile. The invention provides a ball stud dust cover, which comprises an arc wall capable of rotating by 360 degrees around a rotating shaft, the arc wall includes a bottom end, a middle and a top end disposed from bottom to top along the rotating shaft, the bottom end is provided with a bulge radially projecting out, and a top convex point of the bulge is a point of the arc wall, farthest away from the rotating shaft. The invention further provides the ball stud assembly and the automobile. The ball stud dust cover, the ball stud assembly and the automobile have the advantages that the bulge is arranged at the bottom end, and accordingly when a ball stud is pressed, the bulge in bulging deformation cannot interfere or rub with a ball stud connector; and when the ball stud swings, the ball stud dust cover cannot be stretched in tensioning, so that the service life of the ball stud dust cover can be prolonged effectively.
Description
Technical field
The present invention relates to the suspension system of automobile, relate in particular to a kind of ball stud dust-proof cover, ball stud assembly and automobile in the suspension system.
Background technique
The ball stud assembly Environmental Conditions that is used for suspension system is abominable, generally uses the ball stud dust-proof cover to prevent the erosion of environmental factors such as mud, water to ball pin kinematic pair.
The structure of existing ball stud assembly such as Fig. 1 are extremely shown in Figure 2, mainly by ball stud dust-proof cover 1, ball pin 2, and ball key seat 3 compositions such as grade.Ball pin 2 ball head be located in the ball key seat 3; The bottom 101 of ball stud dust-proof cover 1 is fixing with ball key seat 3 usefulness collars 5; Tip portion 103 endoporus of ball stud dust-proof cover 1 are to the bar portion sealing of ball pin 2; The bar portion of ball pin 2 is connected with ball pin link 4, and it is inner that ball stud dust-proof cover 1 can prevent mud, water gets into the ball stud assembly.
Structural representation when Fig. 3 to Fig. 4 is in free state for the ball stud dust-proof cover 1 of existing two kinds of structures; Extremely shown in Figure 4 like Fig. 3; Ball stud dust-proof cover 1 is divided into 103 3 sections of bottoms 101, medial end portions 102, tip portion from bottom to top; The thickness of the bottom 101 of ball stud dust-proof cover 1, medial end portions 102, tip portion 103 is uniformity basically, and the medial end portions of ball stud dust-proof cover 1 is provided with protruding drum, and the protruding bulging height H 1 of ball stud dust-proof cover 1 is the half the of overall height H 0.Roughly state after its precompressed distortion under assembling condition, and full swing state in the work are seen shown in Figure 2.
There is following problem in the course of the work in this structure:
1) as shown in Figure 2, ball stud dust-proof cover 1 and ball key seat 3 movement interferences, i.e. ball stud dust-proof cover 1 is pullled and is tightened by ball key seat 3 during ball pin 2 swings, causes ball stud dust-proof cover 1 damaged easily, thus the working life of reducing the ball stud assembly;
2) as shown in Figure 1; The motion interference of the ball pin link 4 on the bar portion top of ball stud dust-proof cover 1 and ball pin 2; Be after ball pin 2 assembles with ball pin link 4; Ball pin link 4 easy and ball stud dust-proof cover 1 interference friction cause ball stud dust-proof cover 1 damaged easily, the working life of reducing the ball stud assembly.
Summary of the invention
In order to solve the problems of the prior art, the invention provides a kind of ball stud dust-proof cover, ball stud assembly and automobile.
The invention provides a kind of ball stud dust-proof cover; Comprise the arcwall that revolves three-sixth turn around a running shaft; Said arcwall comprises bottom, medial end portions and the tip portion of arranging along said running shaft from bottom to top; Said bottom is provided with the convex part of radially outward protrusion, and the concave vertex of said convex part is farthest a bit of the said running shaft of said arcwall middle distance.
As further improvement of the present invention, the axial height of the concave vertex of said convex part is H1, and the axial height of said ball stud dust-proof cover is H0, wherein, and 0 < H1 < H0 * 1/>2.
As further improvement of the present invention, 0 < H1≤H0 * 2/>5.
As further improvement of the present invention, 0 < H1≤H0 * 1/>3.
As further improvement of the present invention, the wall thickness of said arcwall diminishes along said running shaft from top to bottom gradually.
As further improvement of the present invention, the wall thickness of said tip portion is δ 2, and the wall thickness of said bottom is δ 1, wherein, and 1.5 δ, 1≤δ, 2≤3 δ 1.
As further improvement of the present invention, 2 δ, 1≤δ, 2≤2.5 δ 1.
The present invention also provides a kind of ball stud assembly; Comprise ball pin, ball key seat and described ball stud dust-proof cover; Said ball pin comprises ball head and bar portion; Said ball head is arranged in the said ball key seat, the bar portion of the said ball pin of tip portion sealed envelope of said ball stud dust-proof cover, the said ball key seat of the bottom sealed envelope of said ball stud dust-proof cover.
As further improvement of the present invention, the concave vertex of said convex part is higher than said ball key seat.
The present invention also provides a kind of automobile, comprises described ball stud assembly.
The invention has the beneficial effects as follows: through such scheme, convex part is moved to the bottom, when the ball pin is in compressive state, convex part heave distortion not can with ball pin link interference friction; When the ball pin was put, the ball stud dust-proof cover can not pullled and tightened, and can effectively prolong the working life of ball stud dust-proof cover.
Description of drawings
Fig. 1 is the structural representation when the ball stud assembly is in its pre-compressed state in the existing technology;
Fig. 2 is the structural representation when the ball stud assembly is in the full swing state in the existing technology;
Fig. 3 is the structural representation when wherein a kind of ball stud dust-proof cover is in free state in the existing technology;
Fig. 4 is the structural representation when another kind of ball stud dust-proof cover is in free state in the existing technology;
Fig. 5 is the structural representation of a kind of ball stud dust-proof cover of the present invention;
Fig. 6 is the structural representation of a kind of ball stud assembly of the present invention;
Fig. 7 is the structural representation of a kind of ball stud assembly of the present invention when being in its pre-compressed state;
Fig. 8 is the structural representation of a kind of ball stud assembly of the present invention when being in the full swing state.
Embodiment
Below in conjunction with description of drawings and embodiment the present invention is further specified.
Drawing reference numeral among Fig. 5 to Fig. 8 is: ball stud dust-proof cover 1; Bottom 101; Medial end portions 102; Tip portion 103; Hard skeleton 104; Ball pin 2; Ball key seat 3; Ball pin link 4; Collar 5.
To shown in Figure 8, a kind of ball stud dust-proof cover 1 comprises the arcwall that revolves three-sixth turn around a running shaft like Fig. 5; Said arcwall comprises bottom 101, medial end portions 102 and the tip portion 103 of arranging along said running shaft from bottom to top, and said bottom 101 is provided with the convex part of radially outward protrusion, and the concave vertex of said convex part is farthest a bit of the said running shaft of said arcwall middle distance; Wherein, said tip portion 103 is provided with the snap ring portion of ball sealer pin 2, is embedded with hard skeleton 104 in the said snap ring portion; The axial height of said hard skeleton 104 is h1, said hard skeleton 104 radial width be a, the axial height of said snap ring portion is h2; The radial width of said snap ring portion is b; Wherein, b ≈ 2a, h2 ≈ 1.5h1.
To shown in Figure 8, said ball stud dust-proof cover 1 is to be formed by hard skeleton 104 and rubber body sulfidization molding like Fig. 5.
To shown in Figure 8, the axial height of the concave vertex of said convex part is H1 like Fig. 5, and the axial height of said ball stud dust-proof cover 1 is H0, wherein, and 0 < H1 < H0 * 1/>2.
To shown in Figure 8, the present invention is preferably 0 < H1≤H0 * 2/>5 like Fig. 5.
To shown in Figure 8, the present invention is preferably 0 < H1≤H0 * 1/>3 like Fig. 5.
To shown in Figure 8, it is little circular arc that the present invention is preferably said convex part like Fig. 5, and said convex part and said tip portion 103 are established an orthodrome.
To shown in Figure 8, the wall thickness of said arcwall diminishes along said running shaft from top to bottom gradually like Fig. 5.
To shown in Figure 8, the wall thickness of said tip portion 103 is δ 2 like Fig. 5, and the wall thickness of said bottom 101 is δ 1, wherein, and 1.5 δ, 1≤δ, 2≤3 δ 1.
To shown in Figure 8, the present invention is preferably 2 δ, 1≤δ, 2≤2.5 δ 1 like Fig. 5.
The present invention also provides a kind of ball stud assembly; Comprise ball pin 2, ball key seat 3 and described ball stud dust-proof cover 1; Said ball pin 2 comprises ball head and bar portion, and said ball head is arranged in the said ball key seat 3, the bar portion of the said ball pin 2 of tip portion 103 sealed envelope of said ball stud dust-proof cover 1; The said ball key seat 3 of bottom 101 sealed envelope of said ball stud dust-proof cover 1, the other end of the bar portion of said ball pin 2 is connected with ball pin link 4.
To shown in Figure 8, the concave vertex of said convex part is higher than said ball key seat 3, is specially like Fig. 5; Said ball key seat 3 comprises the upper end portion that is positioned at its top; Said upper end portion is provided with draw-in groove, and on the draw-in groove of the bottom of said ball stud dust-proof cover 1 through the upper end portion of the said ball key seat 3 of collar 5 sealed envelope, the axial height of the upper end portion of said ball key seat 3 is H2; Wherein, H2 < H1.
The present invention also provides a kind of ball stud assembly; The tip portion 103 of ball stud dust-proof cover 1 is enclosed within the bar portion of ball pin 2; The bottom 101 of ball stud dust-proof cover 1 is enclosed within the draw-in groove of upper end portion of ball key seat 3, uses the bottom 101 and ball key seat 3 bandings of collar 5 with ball stud dust-proof cover 1 then, and wherein ball stud dust-proof cover 1 is provided with certain pre compressed magnitude; The lip that the tip portion of ball stud dust-proof cover 1 is provided with sawtooth pattern cooperates with the bar portion of ball pin 2; And entering such as muddy water, foul can be prevented in bottom 101 and ball key seat 3 usefulness collars 5 bandings, prevent leakage of oil.
The present invention also provides a kind of automobile, comprises described ball stud assembly.
A kind of ball stud dust-proof cover provided by the invention 1, have the ball stud assembly of this ball stud dust-proof cover 1 and have the automobile of this ball stud assembly; The convex part of the bottom 101 of ball stud dust-proof cover 1 is little circular-arc; Can effectively avoid the upper end portion of ball key seat 3; Avoid both interference frictions, the wall thickness of tip portion 103 to the bottom 101 of ball stud dust-proof cover 1 reduces gradually and the hard skeleton 104 of ball stud dust-proof cover 1 strengthens, and the rigidity of ball stud dust-proof cover 1 is from top to bottom reduced gradually; The medial end portions section of having orthodrome and for example, distortion order that then can better controlled ball stud dust-proof cover 1.Thereby protection ball stud dust-proof cover 1 is not collided with and tightens and destroy, and improves the working life of ball stud dust-proof cover 1 and ball stud assembly.
The distortion order of the ball stud dust-proof cover 1 under the preloading condition of assembling is:
1) at first, the tip portion 103 of ball pin link 4 precompressed ball stud dust-proof cover 1, the bottom 101 of little rigidity is further caused radius to become big by tip portion 103 compressings of big rigidity, thereby makes bottom 101 more can avoid the upper end portion of ball key seat 3;
2) rigidity of medial end portions 102 is moderate, then can not swell and collides with mutually with ball pin link 4;
In the working procedure of ball stud assembly, when ball pin 2 was in the maximum angle swing, the distortion situation of ball stud dust-proof cover 1 was as shown in Figure 8; Avoided the upper end portion of ball key seat 3 when the precompressed because of the convex part of ball stud dust-proof cover 1; When even ball pin 2 is swung at maximum angle, the phenomenon that ball stud dust-proof cover 1 is tightened can not take place yet, and as shown in Figure 7; When being in the assembling its pre-compressed state; The convex part of ball stud dust-proof cover 1 is more prone to both sides and is tilted to down heave, and can avoid ball pin link 4 preferably, thus the defective of avoiding both to contact and wear and tear.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (10)
1. ball stud dust-proof cover; It is characterized in that: comprise the arcwall that revolves three-sixth turn around a running shaft; Said arcwall comprises bottom, medial end portions and the tip portion of arranging along said running shaft from bottom to top; Said bottom is provided with the convex part of radially outward protrusion, and the concave vertex of said convex part is farthest a bit of the said running shaft of said arcwall middle distance.
2. ball stud dust-proof cover according to claim 1 is characterized in that: the axial height of the concave vertex of said convex part is H1, and the axial height of said ball stud dust-proof cover is H0, wherein, and 0 < H1 < H0 * 1/>2.
3. ball stud dust-proof cover according to claim 2 is characterized in that: 0 < H1≤H0 * 2/>5.
4. ball stud dust-proof cover according to claim 3 is characterized in that: 0 < H1≤H0 * 1/>3.
5. ball stud dust-proof cover according to claim 1 is characterized in that: the wall thickness of said arcwall diminishes along said running shaft from top to bottom gradually.
6. ball stud dust-proof cover according to claim 5 is characterized in that: the wall thickness of said tip portion is δ 2, and the wall thickness of said bottom is δ 1, wherein, and 1.5 δ, 1≤δ, 2≤3 δ 1.
7. ball stud dust-proof cover according to claim 6 is characterized in that: 2 δ, 1≤δ, 2≤2.5 δ 1.
8. ball stud assembly; It is characterized in that: comprise ball pin, ball key seat and like each described ball stud dust-proof cover in the claim 1 to 7; Said ball pin comprises ball head and bar portion; Said ball head is arranged in the said ball key seat, the bar portion of the said ball pin of tip portion sealed envelope of said ball stud dust-proof cover, the said ball key seat of the bottom sealed envelope of said ball stud dust-proof cover.
9. ball stud assembly according to claim 8 is characterized in that: the concave vertex of said convex part is higher than said ball key seat.
10. an automobile is characterized in that: comprise like the described ball stud assembly in arbitrary top in the claim 8 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104376161A CN102518813A (en) | 2011-12-23 | 2011-12-23 | Ball stud dust cover, ball stud assembly and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104376161A CN102518813A (en) | 2011-12-23 | 2011-12-23 | Ball stud dust cover, ball stud assembly and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102518813A true CN102518813A (en) | 2012-06-27 |
Family
ID=46289839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104376161A Pending CN102518813A (en) | 2011-12-23 | 2011-12-23 | Ball stud dust cover, ball stud assembly and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102518813A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720756A (en) * | 2012-06-29 | 2012-10-10 | 索密克汽车配件有限公司 | Ball joint assembly for automobile |
| CN106122485A (en) * | 2016-08-31 | 2016-11-16 | 重庆卡福汽车制动转向系统有限公司 | Motor vehicle steering link connector dust guard |
| CN111373166A (en) * | 2018-10-01 | 2020-07-03 | Nok株式会社 | Dust cover |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08240270A (en) * | 1995-03-03 | 1996-09-17 | Nissan Diesel Motor Co Ltd | Dust cover |
| CN1906423A (en) * | 2004-09-08 | 2007-01-31 | 丰田自动车株式会社 | Ball joint |
| CN101253340A (en) * | 2005-07-27 | 2008-08-27 | Trw汽车股份有限公司 | Ball joint and sealing collar for a ball joint of this type |
| CN201420799Y (en) * | 2009-01-21 | 2010-03-10 | 芜湖南大汽车工业有限公司 | Automobile tie rod end connecting structure with larger rotation range |
| JP2011252519A (en) * | 2010-06-01 | 2011-12-15 | Jtekt Corp | Dust cover for ball joint |
| CN202612659U (en) * | 2011-12-23 | 2012-12-19 | 上汽通用五菱汽车股份有限公司 | Ball pin dustproof cover, ball pin assembly and automobile |
-
2011
- 2011-12-23 CN CN2011104376161A patent/CN102518813A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08240270A (en) * | 1995-03-03 | 1996-09-17 | Nissan Diesel Motor Co Ltd | Dust cover |
| CN1906423A (en) * | 2004-09-08 | 2007-01-31 | 丰田自动车株式会社 | Ball joint |
| CN101253340A (en) * | 2005-07-27 | 2008-08-27 | Trw汽车股份有限公司 | Ball joint and sealing collar for a ball joint of this type |
| CN201420799Y (en) * | 2009-01-21 | 2010-03-10 | 芜湖南大汽车工业有限公司 | Automobile tie rod end connecting structure with larger rotation range |
| JP2011252519A (en) * | 2010-06-01 | 2011-12-15 | Jtekt Corp | Dust cover for ball joint |
| CN202612659U (en) * | 2011-12-23 | 2012-12-19 | 上汽通用五菱汽车股份有限公司 | Ball pin dustproof cover, ball pin assembly and automobile |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720756A (en) * | 2012-06-29 | 2012-10-10 | 索密克汽车配件有限公司 | Ball joint assembly for automobile |
| CN106122485A (en) * | 2016-08-31 | 2016-11-16 | 重庆卡福汽车制动转向系统有限公司 | Motor vehicle steering link connector dust guard |
| CN111373166A (en) * | 2018-10-01 | 2020-07-03 | Nok株式会社 | Dust cover |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120627 |