CN104843061A - Bulb structure and steering system of steering pull rod - Google Patents
Bulb structure and steering system of steering pull rod Download PDFInfo
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- CN104843061A CN104843061A CN201410721078.2A CN201410721078A CN104843061A CN 104843061 A CN104843061 A CN 104843061A CN 201410721078 A CN201410721078 A CN 201410721078A CN 104843061 A CN104843061 A CN 104843061A
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- ball head
- head structure
- bulb
- elastic supporting
- base
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Abstract
The invention discloses a bulb structure and steering system of a steering pull rod. The bulb structure comprises a bulb pin (1), a joint part (4), a base (5) and an elastic supporting base (6), wherein the a limit accommodating cavity for accommodating a bulb is arranged in the joint part, and a pin rod stretches out towards one side of the joint part from the bulb; the base is mounted on the bottom wall of the other side opposite to the side from which the pin rod stretches out, of the joint part; the elastic supporting base is positioned in the limit accommodating cavity and mounted on the base so as to support the bulb, the elastic supporting base is an integrated annular elastic piece, and the annular elastic piece comprises an inner ring part (61) and outer ring parts (62), wherein the bottom end of the inner ring part and the bottom ends of the outer ring parts are respectively arranged on the base in a supporting manner, the bottom end of the bulb is inserted in the inner ring part and is elastically propped against the inner wall of the inner ring part. The bulb structure disclosed by the invention has the advantages that the components are few, the assembled structure is simple, the elastic supporting base and the base are unlikely to deform and lose efficacy, and the large-scale manufacturing, maintenance and replacement are convenient to perform.
Description
Technical field
The present invention relates to automobile steering system, particularly, relate to a kind of ball head structure of steering track rod.
Background technology
Along with the fast development of auto trade and the lifting of technology, people require more and more higher to the operating characteristic of automobile, thus for automobile steering system, need to improve constantly its structural reliability and maneuvering performance.As the key drive disk assembly of automobile steering system, the structural reliability of steering track rod and ball end thereof is most important.
On the whole the ball head structure of steering track rod of the prior art can be divided into spring loaded and rubber type two kinds.The steering track rod bulb of spring structure is generally made up of joint, ball pin, upper ball base, lower ball base, spring and base plate etc., parts kind is more, assembly process is many, and spring easily lost efficacy, bulb can be caused to loosen phenomenon, and need to carry out periodical maintenance to bulb.Rubber type structure then requires higher to rubber performance, rubber tee 3 such as, in patent CN103640624A shown in accompanying drawing 1, its manufacture process requirement is high, and domestic technique only can meet light car performance requriements at present, and light card and heavily card also cannot meet at present.Therefore be necessary to further improve the ball head structure of existing steering track rod, to improve structural behaviour.
Summary of the invention
The object of this invention is to provide a kind of ball head structure of steering track rod, and adopt the steering swivel system of this ball head structure, the component parts of this ball head structure is few, dependable performance, parts highly versatile and maintainability performance is good.
To achieve these goals, the invention provides a kind of ball head structure of steering track rod, comprise ball end and connector portions, described ball end comprises bulb and pin rod, the spacing cavity volume holding described bulb is provided with in described connector portions, described pin rod stretches out from described bulb to the side of described connector portions, it is characterized in that, described ball head structure also comprises:
Base, this floor installation in described connector portions with on the diapire stretching out the relative opposite side in side of described pin rod; And
Elastic supporting seat, this elastic supporting seat is positioned at described spacing cavity volume and is arranged on described base to support described bulb, the ring elastic parts that described elastic supporting seat is formed in one, this ring elastic parts comprises internal ring portion and outer portion, the bottom of described internal ring portion and the bottom of described outer portion are all supported on described base, the bottom of described bulb to insert in described internal ring portion and resilient mounting on the internal face of described internal ring portion.
Preferably, the annular boss that described base comprises base plate and protrudes from this base plate, this annular boss has internal face and outer incline wall;
Described elastic supporting seat rides on described annular boss, and the bottom of described internal ring portion is supported on the diapire in described annular boss, and the bottom of described outer portion is supported on the described outer incline wall of described annular boss;
When the bottom of described bulb extrudes described elastic supporting seat towards described base, this elastic supporting seat produces elastic deformation, the bottom of described outer portion can be moved along described outer incline wall, and described internal ring portion can be pressed against towards the described internal face of described annular boss.
Preferably, the described outer portion of described elastic supporting seat comprises multiple claws circumferentially spaced apart, and this claw extends to the described outer incline wall of described annular boss from the top periphery of described internal ring portion to bottom.
Preferably, the internal face of the described internal ring portion of described elastic supporting seat is formed with the spherical corresponding with the periphery sphere of described bulb.
Preferably, described elastic supporting seat is integrated blanked part.
Preferably, the edge, periphery of described base plate is riveted on the diapire of described connector portions.
Preferably, described ball head structure also comprises the dust boot stretching out side being located at described pin rod, this dust boot is formed as cydariform, and the first end of this cydariform dust boot is set on described pin rod, and second end contrary with first end to be overlapped in described connector portions and fastening by fastening spring.
Preferably, described ball head structure also comprises the tightening seal washer being positioned at described dust boot, sealing packing ring pad is located between described connector portions and described pin rod, and the end towards described dust boot of described tightening seal washer is formed with limited support portion with the described first end against described dust boot.
Preferably, the end of the external part of described pin rod is formed with through connecting bore.
On this basis, the invention also discloses a kind of steering swivel system, comprise deflector, pitman arm, steering track rod, track arm and wheel set, described steering swivel system also comprises the ball head structure of above-mentioned steering track rod, described ball head structure is respectively formed at the two ends of described steering track rod, the described ball head structure of one end is connected with described pitman arm and is connected to described deflector, and the described ball head structure of the other end is connected with described track arm and is connected to described wheel set.
Pass through technique scheme, the ball head structure of steering track rod of the present invention is only by connector portions, ball end, some simple components such as elastic supporting seat and base are formed, composition component is few, mounting structure is simple, especially for the elastomeric element easily lost efficacy, present invention employs the specially designed elastic supporting seat comprising internal ring portion and outer portion, in conjunction with the base coordinated with its one, elastic supporting seat is made to obtain multi-point support, elastically deformable amount is large, resilient mounting ability is stronger, also can form better sphere-contact with bulb, thus elastic supporting seat not easily deformation failure, unfailing performance is strong, non-maintaining property is good, and the structure commonality of elastic supporting seat and base is good, be convenient to extensive manufacture and maintenance replacement.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification sheets, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the structure principle chart of the ball head structure according to the steering track rod in the preferred embodiment of the present invention;
Fig. 2 is the spatial structure view according to the elastic supporting seat in the preferred embodiment of the present invention;
Fig. 3 is the spatial structure view according to the base in the preferred embodiment of the present invention;
Fig. 4 is the block diagram of the ball head structure according to the steering track rod in the preferred embodiment of the present invention, wherein embodies inner structure for clear, does not show connector portions.
Description of reference numerals
1 ball end 2 dust boot
3 fastening spring 4 connector portions
5 base 6 elastic supporting seats
7 tightening seal washers
11 bulb 12 pin rods
51 base plate 52 annular boss
61 internal ring portion 62 outer portion
71 limited support portions
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In the present invention, when not doing contrary explanation, the noun of locality of use as " upper and lower " normally for direction shown in the drawings or for each parts mutual alignment relationship description word vertically, on vertical or gravity direction.In addition, when not doing contrary explanation, the left and right directions of the paper transverse direction that " left and right " typically refers to.
As shown in Figure 1, the invention provides a kind of ball head structure of steering track rod, comprise ball end 1 and connector portions 4, ball end 1 comprises bulb 11 and pin rod 12, the spacing cavity volume holding bulb 11 is provided with in connector portions 4, spacing sphere is formed in spacing cavity volume in figure, the mating spherical surfaces of this spacing sphere and bulb 11, pin rod 12 stretches out from bulb 11 to the side of connector portions 4, wherein, the ball head structure of this steering track rod also comprises: base 5, this base 5 be arranged on connector portions 4 with on the diapire stretching out the relative opposite side in side of pin rod 12; And elastic supporting seat 6, this elastic supporting seat 6 is positioned at spacing cavity volume and is arranged on base 5 to support bulb 11, the ring elastic parts that elastic supporting seat 6 is formed in one, this ring elastic parts comprises internal ring portion 61 and outer portion 62, the bottom of internal ring portion 61 and the bottom of outer portion 62 are all supported on base 5, the bottom of bulb 11 to insert in internal ring portion 61 and resilient mounting on the internal face of internal ring portion 61.It should be noted that, in the following description, the top in the ball head structure in Fig. 1 is the left side in Fig. 1, and bottom is the right part of Fig. 1.
Visible, relative to the ball head structure of form of springs in prior art, the ball head structure of steering track rod of the present invention only comprises some structure members such as ball end 1, connector portions 4, elastic supporting seat 6 and base 5, and composition component is few, and mounting structure is also very simple.Especially, for the elastomeric element easily lost efficacy, adopt the elastic supporting seat 6 of base structure in the present invention, coordinate with hard-wired base 5, when bulb 11 is pressed against elastic supporting seat 6, the two can form sphere-contact, and bearing area is large.Elastic supporting seat 6 adopts integrated ring elastic parts and comprises internal ring portion 61 and outer portion 62, and elastically deformable amount is large, and resilient mounting ability is stronger, and elastic recovery properties is better, not fragile inefficacy; The elastic supporting seat 6 of base structure is at least supported on base 5 by the bottom of internal ring portion 61 and the bottom of outer portion 62, and the strong point is more more firm, and unfailing performance is high.After adopting this elastic supporting seat 6, carry out equipment adjustment etc. without the need in use adding lubrication or taking out, non-maintaining property is strong, can save maintenance cost.
Elastic supporting seat 6 as shown in Figure 1 and the mounting structure of base 5 can obtain and be easy to assembling, and reliability is strong, the effect lost efficacy of not easily straining.Further, replacing with maintenance for ease of manufacturing, having carried out the better optimal design of commonality.Shown in composition graphs 3, the annular boss 52 that base 5 comprises base plate 51 and protrudes from this base plate 51, this annular boss 52 has internal face and outer incline wall; Elastic supporting seat 6 rides on annular boss 52, and the bottom of internal ring portion 61 is supported on the diapire in annular boss 52, and the bottom of outer portion 62 is supported on the outer incline wall of annular boss 52; When the bottom of bulb 11 extrudes elastic supporting seat 6 towards base 5, this elastic supporting seat 6 produces elastic deformation, and the bottom of outer portion 62 can be moved along outer incline wall, and internal ring portion 61 can be pressed against towards the internal face of annular boss 52.This kind has base 5 structure matching of annular boss 52 in the elastic supporting seat 6 with internal ring portion 61 and outer portion 62, to the positioning supports better effects if of elastic supporting seat 6.When the bottom of bulb 11 extrudes elastic supporting seat 6 towards base 5, internal ring portion 61 produces elastic deformation, the same force-applied distortion in bottom of outer portion 62 the outer incline wall along the annular boss 52 of Fig. 3 move down, to cushion the impulsive force of bulb 11 pairs of bases 5.
In present embodiment, carried out structure optimization to the outer portion 62 of elastic supporting seat 6, outer portion 62 is no longer one annular element, but is formed as graphic multiple claw form.As shown in Figure 2, the outer portion 62 of elastic supporting seat 6 comprises multiple claws circumferentially spaced apart, and this claw extends to the outer incline wall of annular boss 52 from the top periphery of internal ring portion 61 to bottom.This structure not only alleviates structural weight, and during elastic supporting seat 6 unbalance stress, each claw can also independent deformation independent mobile on the outer incline wall of annular boss 52, but not as integrally annular element easy because of unbalance stress local fatigue impaired.The end of claw can be upturned, and to strengthen the support strength of end, prevents distortion.During the manufacturing, also can carry out structure-reinforced to each claw, such as Quenching Treatment, to optimize the performance perameters such as its strength and stiffness.
Elastic supporting seat 6 shown in Fig. 2 is preferably integrated punching part, facilitates processing and manufacturing, and technique is simple, and the conformability of the dimensional structure of blanked part is good, and the commonality be convenient to when safeguarding is changed.When punching press, for ease of the assembling between elastic supporting seat 6 and bulb 11 with assemble effect, the internal face of the internal ring portion of elastic supporting seat 6 can go out the spherical corresponding with the periphery sphere of bulb 11.So after mounting, the two combines closely, and distribution of force is balanced.Certain assembly pretightening power is applied by elastic supporting seat 6 pairs of bulbs 11, when ball end 1 moves relative to connector portions 4, the spacing sphere of the spacing cavity volume in connector portions 4 and the sphere of bulb 11 can produce movement clearance, this can affect the in-use performance of ball end 1, the assembly pretightening power that now elastic supporting seat 6 pairs of bulbs 11 apply can make described movement clearance necessarily be compensated, and improves the exercise performance of ball head structure.By adjusting this elastic supporting seat 6, clamping bulb 11 can be located, and adjust the staring torque of ball end 1.
In addition, base 5 should be fixedly mounted in connector portions 4 and to follow its one mobile, effectively can support elastic supporting seat 6 and ball end 1.Change for ease of safeguarding, base 5 is preferably removably installed in the bottom of connector portions 4.In the present embodiment, as shown in Figure 1, the edge, periphery of base plate 51 is formed as hook-shaped shape, and the base end wall of connector portions 4 is formed with mounting groove, after the edge, periphery of base plate 51 embeds mounting groove, the flange on the diapire of connector portions 4 can coated edge, described periphery make it to be riveted on this diapire.
In addition, ball head structure in present embodiment also comprises the dust boot 2 stretching out side being located at pin rod 12, this dust boot 2 is formed as drum-like shape, and the first end of this cydariform dust boot 2 is set on pin rod 12, and second end contrary with first end to be overlapped in connector portions 4 and fastening by fastening spring 3.This dust boot 2 can effectively prevent flying dust and foreign material etc. from entering in the spacing cavity volume of connector portions 4.On this basis, ball head structure also comprises the tightening seal washer 7 being positioned at dust boot 2, and sealing packing ring 7 pad is located between connector portions 4 and pin rod 12, and the end towards dust boot 2 of tightening seal washer 7 is formed with limited support portion 71 with the first end against dust boot 2.When the first end of dust boot 2 moves towards connector portions 4 by external force extruding, it is spacing that the limited support portion 71 of tightening seal washer 7 can carry out to a certain degree to it, and the maximum compression stroke of restriction dust boot 2, prevents it to be out of shape excessive damage or to produce and depart from.In addition, the end of the external part of pin rod 12 can be formed with through connecting bore, is connected to be equaled pitman arm or track arm by the fastener such as bolt run through wherein.
Above describe and form according to the structure of the ball head structure of steering track rod of the present invention, especially base 5 and elastic supporting seat 6, on this basis, present invention also offers a kind of steering swivel system, this system comprises deflector, pitman arm, steering track rod, track arm and wheel set, wherein, this steering swivel system also comprises the ball head structure of above-mentioned steering track rod, ball head structure is respectively formed at the two ends of steering track rod, namely the two ends of steering track rod are formed with described connector portions 4 respectively, like this, the ball head structure of one end of steering track rod is connected with pitman arm and is connected to deflector, the ball head structure of the other end is connected with track arm and is connected to wheel set, thus pass through deflector, drive disk assembly is as pitman arm, steering track rod, track arm and steering track rod etc. can effectively control turning to of wheel.Have employed of the present invention comprise the ball head structure of base 5 and elastic supporting seat 6 after, the maneuvering performance of ball head structure is more excellent, and maintainability is stronger, and the experience property of user to steering swivel system is better.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out combination in any between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. the ball head structure of a steering track rod, comprise ball end (1) and connector portions (4), described ball end (1) comprises bulb (11) and pin rod (12), the spacing cavity volume holding described bulb (11) is provided with in described connector portions (4), described pin rod (12) stretches out from described bulb (11) to the side of described connector portions (4), it is characterized in that, described ball head structure also comprises:
Base (5), this base (5) be arranged on described connector portions (4) with on the diapire stretching out the relative opposite side in side of described pin rod (12); And
Elastic supporting seat (6), this elastic supporting seat (6) is positioned at described spacing cavity volume and is arranged on described base (5) to support described bulb (11), the ring elastic parts that described elastic supporting seat (6) is formed in one, this ring elastic parts comprises internal ring portion (61) and outer portion (62), the bottom of described internal ring portion (61) and the bottom of described outer portion (62) are all supported on described base (5), the bottom of described bulb (11) to insert in described internal ring portion (61) and resilient mounting on the internal face of described internal ring portion (61).
2. the ball head structure of steering track rod according to claim 1, is characterized in that:
The annular boss (52) that described base (5) comprises base plate (51) and protrudes from this base plate (51), this annular boss (52) has internal face and outer incline wall;
Described elastic supporting seat (6) rides on described annular boss (52), the bottom of described internal ring portion (61) is supported on the diapire in described annular boss (52), and the bottom of described outer portion (62) is supported on the described outer incline wall of described annular boss (52);
When the bottom of described bulb (11) extrudes described elastic supporting seat (6) towards described base (5), this elastic supporting seat (6) produces elastic deformation, the bottom of described outer portion (62) can be moved along described outer incline wall, and described internal ring portion (61) can be pressed against towards the described internal face of described annular boss (52).
3. the ball head structure of steering track rod according to claim 2, it is characterized in that, the described outer portion (62) of described elastic supporting seat (6) comprises multiple claws circumferentially spaced apart, and this claw extends to the described outer incline wall of described annular boss (52) from the top periphery of described internal ring portion (61) to bottom.
4. the ball head structure of steering track rod according to claim 2, is characterized in that, the internal face of the described internal ring portion of described elastic supporting seat (6) is formed with the spherical corresponding with the periphery sphere of described bulb (11).
5. the ball head structure of steering track rod according to claim 4, is characterized in that, described elastic supporting seat (6) is integrated blanked part.
6. the ball head structure of steering track rod according to claim 2, is characterized in that, the edge, periphery of described base plate (51) is riveted on the diapire of described connector portions (4).
7. the ball head structure of steering track rod according to claim 1, it is characterized in that, described ball head structure also comprises the dust boot (2) stretching out side being located at described pin rod (12), this dust boot (2) is formed as cydariform, the first end of this cydariform dust boot (2) is set on described pin rod (12), and second end contrary with first end is overlapped on described connector portions (4) and goes up and to pass through fastening spring (3) fastening.
8. the ball head structure of steering track rod according to claim 7, it is characterized in that, described ball head structure also comprises the tightening seal washer (7) being positioned at described dust boot (2), sealing packing ring (7) pad is located between described connector portions (4) and described pin rod (12), and the end towards described dust boot (2) of described tightening seal washer (7) is formed with limited support portion (71) with the described first end against described dust boot (2).
9. the ball head structure of steering track rod according to claim 1, is characterized in that, the end of the external part of described pin rod (12) is formed with through connecting bore.
10. a steering swivel system, comprise deflector, pitman arm, steering track rod, track arm and wheel set, it is characterized in that, described steering swivel system also comprises the ball head structure according to the steering track rod in the claims 1-9 described in any one, described ball head structure is respectively formed at the two ends of described steering track rod, the described ball head structure of one end is connected with described pitman arm and is connected to described deflector, and the described ball head structure of the other end is connected with described track arm and is connected to described wheel set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410721078.2A CN104843061A (en) | 2014-12-02 | 2014-12-02 | Bulb structure and steering system of steering pull rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410721078.2A CN104843061A (en) | 2014-12-02 | 2014-12-02 | Bulb structure and steering system of steering pull rod |
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| Publication Number | Publication Date |
|---|---|
| CN104843061A true CN104843061A (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410721078.2A Pending CN104843061A (en) | 2014-12-02 | 2014-12-02 | Bulb structure and steering system of steering pull rod |
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| CN (1) | CN104843061A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109017986A (en) * | 2018-05-07 | 2018-12-18 | 安徽迪尔荣机械有限公司 | A kind of motor turning pull rod that protective performance is high |
| CN109312775A (en) * | 2016-06-01 | 2019-02-05 | 费德罗-莫格尔汽车配件有限责任公司 | The method of slot component and manufacture slot component |
| CN110735851A (en) * | 2019-11-26 | 2020-01-31 | 安徽江淮汽车集团股份有限公司 | Steering tie rod ball head structure and steering tie rod assembly |
| CN112203925A (en) * | 2018-05-28 | 2021-01-08 | 捷太格特欧洲公司 | Steering assembly comprising a sealing element improving the sealing of a steering ball joint |
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| JPH09250637A (en) * | 1996-01-09 | 1997-09-22 | Nok Corp | Sealing cover |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112203925A (en) * | 2018-05-28 | 2021-01-08 | 捷太格特欧洲公司 | Steering assembly comprising a sealing element improving the sealing of a steering ball joint |
| CN110735851A (en) * | 2019-11-26 | 2020-01-31 | 安徽江淮汽车集团股份有限公司 | Steering tie rod ball head structure and steering tie rod assembly |
| CN110735851B (en) * | 2019-11-26 | 2020-12-08 | 安徽江淮汽车集团股份有限公司 | Steering tie rod ball head structure and steering tie rod assembly |
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Application publication date: 20150819 |