CN210769811U

CN210769811U - Ball head assembly

Info

Publication number: CN210769811U
Application number: CN201921610708.3U
Authority: CN
Inventors: 陈文葵; 江海斌; 沈先取
Original assignee: Zhejiang Ruitai Suspension System Technology Ltd
Current assignee: Zhejiang Ruitai Suspension System Technology Ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-06-16
Anticipated expiration: 2029-09-25

Abstract

The utility model discloses a ball head assembly, comprising a main body, the dabber, shrouding and shock attenuation cover, the main part is provided with a cavity that pierces through from top to bottom, the dabber is worn to adorn in the cavity of main part, dabber one end tip is provided with the spherical crown as the oscillating portion, the cavity that the other end stretches out the main part sets up to connecting portion, the dabber is close to radially being provided with on the outer disc of oscillating portion and is kept off the ring, shock attenuation cover suit is in the dabber and is set up in between the inner wall of dabber and main part cavity, shock attenuation cover lower extreme butt is in keeping off the ring, the shrouding sets up in the spherical crown below, the shrouding towards the terminal surface of spherical crown be provided with spherical crown complex recess, the shrouding joint is in the main part lower extreme, the utility model has the advantages of.

Description

Ball head assembly

Technical Field

The utility model belongs to the technical field of automobile parts and specifically relates to a bulb subassembly is related to.

Background

The automobile ball head assembly is mainly applied to a suspension system and a steering system of an automobile chassis, and can receive longitudinal force and transverse force transmitted by other parts in the steering system when an automobile starts, brakes and turns.

The ball head assembly that current car used mainly includes the ball cotter way, the bulb round pin, the ball seat, cooperation through bulb on the bulb round pin and ball seat, because bulb round pin and ball cotter way all adopt metal forming generally, be rigid connection between bulb round pin and the ball cotter way, it is great to make wearing and tearing when the bulb round pin swings, the difficult automatic re-setting has been swung, and because the rigid fit of ball cotter way and bulb round pin when receiving the axial force, make the axial force directly act on the ball cotter way, it is great to bear the force in the twinkling of an eye under the condition that does not have the buffering, influence the life of bulb subassembly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a ball head subassembly for realize small swing for flexonics between ball head round pin and the ball round pin cover, reduce the wearing and tearing of ball head round pin when using, have long service life's effect.

The utility model discloses an above-mentioned function can be realized through following technical scheme:

the utility model provides a ball head assembly, includes main part, dabber, shrouding and shock attenuation cover, the main part is provided with a cavity that pierces through from top to bottom, and the dabber is worn to adorn in the cavity of main part, and dabber one end tip is provided with the spherical crown as swing portion, and the cavity that the other end stretches out the main part sets up to connecting portion, and the dabber is close to radially being provided with on the outer disc of swing portion and keeps off the ring, and the shock attenuation cover suit is in the dabber and inlays between the inner wall of dabber and main part cavity, and shock attenuation cover lower extreme butt is in keeping off the ring, the shrouding sets up in the spherical crown below, the shrouding towards the.

By adopting the technical scheme, when the ball head component with the structure is subjected to transverse force and longitudinal force in the processes of starting, accelerating, decelerating and turning of an automobile, the mandrel can swing at a certain angle because the outer wall of the mandrel is contacted with the inner wall of the damping sleeve, and the spherical swinging part is abutted and connected in the groove of the sealing plate to do steering motion, the damping sleeve can buffer the swinging of the mandrel in the swinging process, the abrasion between the mandrel and the main body in the using process is reduced by the flexible connection of the damping sleeve between the mandrel and the main body, when the automobile vibrates, the mandrel can be subjected to the action of axial force, and the mandrel can be limited in the cavity of the main body under the action of the axial force through the abutting of the damping sleeve and the retaining ring and the matching of the swinging part of the mandrel spherical crown and the groove on the upper end face of the sealing plate, so that the ball head component cannot fail due to vibration, meanwhile, the mandrel can be buffered when being subjected to axial force due to the abutting of the damping sleeve and the retaining ring, and the service life of the ball head assembly is prolonged.

The utility model discloses further set up to: the damping sleeve is a rubber sleeve body, a plastic sleeve is embedded between the damping sleeve and the mandrel, the outer wall of the plastic sleeve is attached to the inner wall of the rubber sleeve body, the inner wall of the plastic sleeve is attached to the outer wall of the mandrel, a limiting ring is arranged on the lower end of the plastic sleeve in a radial outward protruding mode, and the limiting ring is arranged between the end faces of the baffle ring and the damping sleeve.

Through adopting above-mentioned technical scheme, make the dabber not direct with the shock attenuation cover contact through set up the plastic sheath between dabber and shock attenuation cover, the dabber is when the swing promptly, the dabber oscillating portion through extrusion plastic sheath, applys even power to the shock attenuation cover by the plastic sheath, guaranteed the effect of buffer force at the shock attenuation cover and increased structural strength, avoid the dabber in the twinkling of an eye swing in-process and the main part keep away from the wearing and tearing that the cavity lateral wall one end contact of oscillating portion and produced.

The utility model discloses further set up to: the plastic sleeve is provided with a plurality of convex edges on the outer edge in the radial direction.

Through adopting above-mentioned technical scheme, through the interference fit between plastic sheath bead and the shock attenuation cover, increase the firm in connection degree between plastic sheath and the shock attenuation cover, avoid the relative drunkenness or the swing between plastic sheath and the shock attenuation cover.

The utility model discloses further set up to: and a plurality of oil storage tanks are uniformly arranged on the inner wall of the plastic sleeve along the circumferential direction and are arranged along the axial length.

By adopting the technical scheme, the lubricating oil is filled in the oil storage tank, so that an oil film exists between the plastic sleeve and the mandrel, the outer circular surface of the mandrel is lubricated, and the abrasion of the ball head assembly is reduced.

The utility model discloses further set up to: the quantity of oil storage tank with the quantity of bead is unanimous, and each oil storage tank is corresponding with each bead one-to-one in footpath.

Through adopting above-mentioned technical scheme, offset the wall thickness of seting up the oil storage tank and reducing through the thickness that bead increases for plastic sheath structural strength is even.

The utility model discloses further set up to: the end of the main body, which is close to the inner wall of the cavity of the mandrel swinging part, is provided with an annular groove, and the outer edge of the sealing plate is embedded in the annular groove to enable the mandrel swinging part to be abutted against the groove of the sealing plate.

Through adopting above-mentioned technical scheme, inlay the annular groove of adorning in the main part cavity through the outer edge joint with the shrouding for the installation firmness of shrouding is good.

The utility model discloses further set up to: the ball head assembly further comprises a dust cover, the dust cover is an annular shell sleeved outside the mandrel, one end of the annular shell is fixedly connected with one end, far away from the sealing plate, of the main body, and the other end of the annular shell is fixedly connected with the outer circular surface of the mandrel.

Through adopting above-mentioned technical scheme, reduce the dust with the dust cover and get into in the ball head subassembly and the lubricating oil mixes and produces the normal swing of damping influence dabber.

The utility model discloses further set up to: the inner wall of the opening end of the dust cover is provided with an annular bulge, the outer wall of the main body is provided with a first annular groove matched with the annular bulge on the inner wall of the dust cover, and the annular bulge and the first annular groove form detachable connection of the dust cover and the main body.

Through adopting above-mentioned technical scheme, through the cooperation of arch and recess, further improvement the connection leakproofness between dust cover and the main part.

The utility model discloses further set up to: the dustproof cover is further provided with a fastening mechanism, the fastening mechanism comprises a second annular groove and a clamping ring, the second annular groove is formed in the outer wall of the opening end of the dustproof cover and is opposite to the annular protrusion, and the clamping ring is sleeved in the second annular groove in the outer wall of the dustproof cover.

Through adopting above-mentioned technical scheme, through rand suit in the second ring channel to it is fixed to carry out the joint through the rand, what make the dust cover can fasten fixes in the main part, prolongs the life of ball head subassembly.

To sum up, the utility model discloses a beneficial technological effect does:

the ball head component adopting the structure can reduce the abrasion between the mandrel and the main body in the using process by the flexible connection of the damping sleeve between the mandrel and the main body, and when the automobile vibrates, the mandrel can be acted by the axial force, and the mandrel can be limited in the cavity of the main body under the action of the axial force by the butt joint of the damping sleeve and the retaining ring and the matching of the swing part of the mandrel spherical crown and the groove on the upper end surface of the sealing plate, so that the ball head component can not lose efficacy due to the vibration, and simultaneously, the butt joint of the damping sleeve and the retaining ring can buffer the mandrel when the mandrel is acted by the axial force, the service life of the ball head assembly is prolonged, and meanwhile, the oil storage groove is formed in the plastic sleeve, so that the friction coefficient between the mandrel and the plastic sleeve and between the spherical crown and the sealing plate is reduced, and the abrasion is further reduced.

Drawings

Fig. 1 is a partial cross-sectional view of the present invention, with the mandrel not sectioned;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a schematic structural view of the mandrel according to the present invention;

FIG. 4 is a schematic structural view of the plastic sheath according to the present invention;

FIG. 5 is a top view of the plastic encasement of the present invention;

fig. 6 is a schematic structural view of the dust cover of the present invention.

Description of reference numerals: 1. a main body; 11. a damping chamber; 12. a mounting cavity; 121. an annular groove; 122. a seal ring; 13. an annular shoulder rest; 14. a first annular groove; 2. a mandrel; 21. a spherical cap; 22. a connecting portion; 23. a baffle ring; 3. a shock-absorbing sleeve; 4. a plastic sheath; 41. a limiting ring; 42. a rib; 43. an oil storage tank; 5. closing the plate; 6. a dust cover; 61. an annular projection; 62. a fastening mechanism; 621. a second annular groove; 622. and a collar.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a ball head assembly, including main part 1, dabber 2, shock attenuation cover 3, plastic sheath 4, shrouding 5 and dust cover 6.

Referring to fig. 1, fig. 2 and fig. 3, main part 1 is provided with a cavity that pierces through from top to bottom, the cavity includes shock attenuation chamber 11 that communicates each other and be located the top and be located the installation cavity 12 of below, the longitudinal section of shock attenuation chamber 11 is isosceles trapezoid, radially inwards be provided with annular lean on shoulder 13 on the inner wall of shock attenuation chamber 11 upper end, dabber 2 wears to adorn in the cavity of main part 1, dabber 2 lower extreme is located installation cavity 12 and this end tip is provided with spherical crown 21 as the swing portion, the cavity that the upper end stretches out main part 1 sets up to connecting portion 22, dabber 2 is close to radially being provided with on the outer disc of swing portion and keeps off ring 23, it leaves the clearance to keep off between the outer disc of ring 23 and.

Referring to fig. 1, 4 and 5, the plastic sleeve 4 is sleeved on the mandrel 2 and located in the cavity of the main body 1, the plastic sleeve 4 is uniformly distributed on the outer circular surface along the circumferential direction and is provided with a plurality of convex ribs 42 in a radial protruding manner, a plurality of oil storage grooves 43 arranged along the axial length are uniformly formed in the inner wall of the plastic sleeve 4 along the circumferential direction, the number of the oil storage grooves 43 is consistent with the number of the convex ribs 42, each oil storage groove 43 is arranged in a one-to-one correspondence with each convex rib 42 in the radial direction, the outer wall of the lower end of the plastic sleeve 4 is provided with a limiting ring 41 in a radial protruding manner, the end surface of the lower end of the limiting ring 41 abuts against the upper end surface of the retaining ring.

Referring to fig. 1 and 2, the damping sleeve 3 is a rubber sleeve body and is nested between the outer wall of the plastic sleeve 4 and the inner wall of the damping cavity 11 of the main body 1, the inner wall of the damping cavity 11 is tightly attached to the outer wall of the damping sleeve 3, the outer wall of the plastic sleeve 4 is attached to the inner wall of the damping sleeve 3, the lower end face of the damping sleeve 3 abuts against the upper end face of the limiting ring 41 of the plastic sleeve 4, the upper end face of the damping sleeve 3 abuts against the lower end face of the annular shoulder 13, and the upper end of the plastic sleeve 4 extends upwards to be located in a gap between the inner circular face of the annular shoulder 13 and the mandrel.

Referring to fig. 1 and 2, an annular groove 121 is formed in the inner wall of the installation cavity 12 in the main body 1, an annular sealing ring 122 is embedded in the annular groove 121, the sealing plate 5 is a circular plate, the outer edge of the sealing plate 5 is embedded in the annular groove 121, and the outer circumferential surface of the sealing plate 5 abuts against the annular sealing ring 122, so that the outer edge of the sealing plate 5 and the inner wall of the installation cavity 12 of the main body 1 are in sealing connection; the closing plate 5 is downwards punched towards the upper end surface of the mandrel 2 to form a groove corresponding to the swinging part of the mandrel 2, and the swinging part of the mandrel 2 is movably embedded and abutted on the inner wall of the groove.

Referring to fig. 2 and 6, the dust cover 6 is an annular housing sleeved outside the mandrel 2, the upper end and the lower end of the annular housing are open, the inner wall of the opening at the upper end is tightly and fixedly connected to the outer wall of the connecting portion 22 of the mandrel 2, a first annular groove 14 is formed in the outer wall of the main body 1 near the upper end, an annular protrusion 61 is formed in the inner wall of the lower end of the dust cover 6, the annular protrusion 61 is embedded in the first annular groove 14, a fastening mechanism 62 is arranged between the lower end of the dust cover 6 and the main body 1, the fastening mechanism 62 comprises a second annular groove 621 and a retainer ring 622, the second annular groove 621 is formed in the outer wall of the lower end of the dust cover 6 corresponding to the annular protrusion 61, and the retainer ring 622 is sleeved in the second annular groove 621.

The implementation principle of the above embodiment is as follows: at the automobile staring, accelerate, slow down, the turn in-process, bulb subassembly dabber 2 will extrude plastic sheath 4 when receiving horizontal and longitudinal force, plastic sheath 4 extrudees damping sleeve 3 again, because damping sleeve 3 is the rubber sleeve body, simultaneously because 2 lower extremes of dabber are that the rotation around the centre of sphere can be done to spherical crown 21 and recess cooperation, make dabber 2 can be the swing of minizone, when automobile vibration, dabber 2 can receive the effect of axial force and utilize damping sleeve 3 and the conical surface of 1 cavity inner wall of main part when axial displacement takes place at dabber 2, promote the cohesive force to dabber 2 through the deformation of damping sleeve 3, increase the torsion of dabber 2.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a ball head subassembly, includes main part (1), dabber (2), shrouding (5) and shock attenuation cover (3), its characterized in that: main part (1) is provided with a cavity that pierces through from top to bottom, and dabber (2) wear to adorn in the cavity of main part (1), and dabber (2) one end tip is provided with spherical crown (21) as the swing portion, and the cavity that the other end stretches out main part (1) sets up to connecting portion (22), and dabber (2) are close to radially being provided with on the excircle face of swing portion and keep off ring (23), and shock attenuation cover (3) suit is on dabber (2) and is inlayed between the inner wall of dabber (2) and main part (1) cavity, and shock attenuation cover (3) lower extreme butt is in keeping off ring (23), shrouding (5) set up in spherical crown (21) below, shrouding (5) towards the terminal surface of spherical crown (21) be provided with spherical crown (21) complex recess, shrouding (5) joint in main part (1) lower.

2. The ball head assembly of claim 1, wherein: damping sleeve (3) are the rubber sleeve body, it is equipped with plastic sheath (4) to inlay between damping sleeve (3) and dabber (2), plastic sheath (4) outer wall and the laminating of rubber sleeve internal wall, plastic sheath (4) inner wall and the laminating of dabber (2) outer wall, the radial evagination of plastic sheath (4) lower extreme is provided with spacing ring (41), spacing ring (41) set up in keep off between ring (23) and the damping sleeve (3) lower terminal surface.

3. A ball head assembly as defined in claim 2, wherein: the plastic sleeve (4) is provided with a plurality of convex ribs (42) on the outer edge in the radial direction.

4. A ball joint assembly according to claim 3, wherein: a plurality of oil storage tanks (43) arranged along the axial length are uniformly arranged on the inner wall of the plastic sleeve (4) along the circumferential direction.

5. The ball head assembly of claim 4, wherein: the number of the oil storage grooves (43) is consistent with that of the ribs (42), and each oil storage groove (43) corresponds to each rib (42) in the radial direction one by one.

6. The ball head assembly of claim 1, wherein: an annular groove (121) is formed in one end, close to the inner wall of the cavity of the swing portion of the mandrel (2), of the main body (1), and the outer edge of the sealing plate (5) is embedded in the annular groove (121) to enable the swing portion of the mandrel (2) to abut against the groove of the sealing plate (5).

7. The ball head assembly of claim 1, wherein: the ball head assembly further comprises a dust cover (6), the dust cover (6) is an annular shell sleeved outside the mandrel (2), one end of the annular shell is fixedly connected with one end, far away from the sealing plate (5), of the main body (1), and the other end of the annular shell is fixedly connected with the outer circular surface of the mandrel (2).

8. The ball head assembly of claim 7, wherein: dust cover (6) open end inner wall is provided with annular bulge (61), main part (1) outer wall be provided with dust cover (6) inner wall annular bulge (61) complex first ring channel (14), annular bulge (61) and first ring channel (14) form the dust cover (6) be connected with dismantling of main part (1).

9. The ball head assembly of claim 8, wherein: the dust cover (6) is further provided with a fastening mechanism (62), the fastening mechanism (62) comprises a second annular groove (621) and a clamping ring (622), the second annular groove (621) is formed in the outer wall of the opening end of the dust cover (6) and is opposite to the annular protrusion (61), and the clamping ring (622) is sleeved in the second annular groove (621) of the outer wall of the dust cover (6).