Disclosure of Invention
The invention aims to solve the problems in the prior art and provide a suspension bearing for an automobile shock absorber, which has good sealing performance and long service life.
The purpose of the invention can be realized by the following technical scheme: the utility model provides a suspension bearing for automobile shock absorber ware, includes the upper cover and the lower cover of mutual block, upper cover and lower cover between be equipped with and provide the support so that upper cover, lower cover pivoted bearing structure relatively, its characterized in that, the outer wall of lower cover ring channel one has, ring channel one in link firmly and be annular rubber circle one, rubber circle one have radial protrusion in the conflict portion one of lower cover outer wall, the upper cover have the cover of establishing the lower cover outer wall cover establish a portion one, conflict portion one conflict all the time in the inner wall that the portion one was established to the cover under self elastic effect.
In foretell suspension bearing for automobile shock absorber ware, the upper cover have the cover that the inner wall part cover of lower cover was established and establish a portion two, the cover inner wall of establishing a portion two have ring channel two, ring channel two in link firmly and be annular rubber circle two, rubber circle two have radial protrusion in the cover conflict portion two of establishing two inner walls of portion, conflict portion two conflict all the time in the inner wall of lower cover under self elastic effect.
In the suspension bearing for the automobile shock absorber, the outer wall of the lower cover is provided with a convex ring which is positioned below the rubber ring and protrudes outwards in the radial direction, the outer diameter of the convex ring is larger than that of the rubber ring I, and the bottom of the cover arrangement part I is provided with a circle of covered edge which covers the outer side of the convex ring.
In the suspension bearing for the automobile shock absorber, the edge cover is provided with a plurality of through holes which axially penetrate through the edge cover.
In the suspension bearing for the automobile shock absorber, the inner wall of the lower cover is provided with a third annular groove, and the second abutting part extends into the third annular groove and elastically abuts against the bottom of the third annular groove.
As another aspect, in the suspension bearing for the shock absorber of the above-mentioned automobile, the inner wall of the lower cover has a diameter-expanding section, the inner diameter of the diameter-expanding section is larger than the inner diameter of the inner wall of the lower cover, and the two abutting portions abut against the diameter-expanding section or abut against a step surface formed between the diameter-expanding section and the inner wall of the lower cover. The diameter expanding section improves the abdicating space, so that the size of the rubber ring II does not need to be too small, the manufacturing of the rubber ring II is convenient, the sealing performance is better due to the matching of the second abutting part and the diameter expanding section or the step surface, and the service life is further prolonged.
In the suspension bearing for the automobile shock absorber, the first collision part is a first circle of convex ring arranged in the middle of the outer wall of the first rubber ring, the second collision part is a second circle of convex ring arranged in the middle of the outer wall of the second rubber ring, and the collision ends of the first convex ring and the second convex ring are fillets. The contact area of the contact ends of the first convex ring and the second convex ring is small, the abrasion is small, the relative rotation of the upper cover and the lower cover cannot be interfered, and the service life is long.
In the suspension bearing for the automobile shock absorber, the transition position of the first convex ring and the first rubber ring and the transition position of the second convex ring and the second rubber ring are both fillet transition, and the middle parts of the first convex ring and the second convex ring are both provided with an upward arched part.
In foretell suspension bearing for automobile shock absorber ware, bearing structure include steel ball, holder, last raceway and lower raceway, last raceway be cyclic annular and the inboard of going up the raceway has the arcwall face that supplies the steel ball laminating, the department of buckling of upper cover inboard be the arcwall face of laminating in the last raceway outside, lower raceway be cyclic annular and the inboard of raceway has the arcwall face that supplies the steel ball laminating down, the top of lower cover arc face that has the laminating in the lower raceway outside, the holder be located between upper raceway and the lower raceway, each steel ball is located the holder, the upper raceway has the last extension that extends and be the tube-shape of rolling down side, last extension laminating in upper cover inboard wall edge, lower raceway have the lower extension that extends and be the tube-shape to the lower cover side, the lower cover have the recess that supplies the embedding of lower extension.
In the suspension bearing for the automobile shock absorber, the top of the outer wall of the lower cover is provided with the buckle bent outwards, and the inner wall of the upper cover is provided with the retaining ring which is inwards protruded in the radial direction and extends into the buckle.
Compared with the prior art, this suspension bearing for automobile shock absorber ware's leakproofness is good, can prevent foreign matters such as dust, muddy water from getting into between lower cover and the upper cover, avoids bad problems such as viscous, wearing and tearing, corrosion, has prolonged life.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Example 1
As shown in fig. 1 and 2, this suspension bearing for automobile shock absorber ware includes upper cover 1 and lower cover 2 of mutual block, be equipped with between upper cover 1 and the lower cover 2 and provide the support so that upper cover 1, the relative pivoted bearing structure of lower cover 2, the outer wall of lower cover 2 has ring channel one, link firmly in the ring channel one and be annular rubber circle one 3, rubber circle one 3 has radial protrusion in the conflict portion one 4 of 2 outer walls of lower cover, upper cover 1 has the cover that 2 outer wall covers of lower cover establish portion one 5, conflict portion one 4 is contradicted all the time in the inner wall that the cover established portion one 5 under self elastic effect.
The rubber ring I3 in the suspension bearing for the automobile shock absorber is fixedly connected in the annular groove I, the rubber ring I3 and the lower cover 2 cannot rotate relatively to be abraded, the service life of the rubber ring I3 is long, the annular groove I is filled with the rubber ring I3, a supporting effect is provided for the lower cover 2, and the supporting capacity and the deformation resistance of the lower cover 2 are improved; in the use, even upper cover 1 takes place certain deformation for lower cover 2, conflict portion 4 still can conflict under self elastic effect and establish the inner wall of portion 5 in the cover, has guaranteed that the leakproofness between the inner wall of portion 5 is established with the cover to 2 outer walls of lower cover, prevents that foreign matters such as dust, muddy water from getting into between lower cover 2 and the upper cover 1, avoids bad problems such as viscous, wearing and tearing, corrosion, has prolonged life.
In a further elaboration, the upper cover 1 is provided with a second covering part 6 which covers the inner wall part of the lower cover 2, the inner wall of the second covering part 6 is provided with a second annular groove, a second annular rubber ring 7 is fixedly connected in the second annular groove, the second rubber ring 7 is provided with a second interference part 8 which protrudes out of the inner wall of the second covering part 6 in the radial direction, and the second interference part 8 is always interfered on the inner wall of the lower cover 2 under the elastic action of the second interference part. Rubber circle two 7 links firmly in ring channel two, and rubber circle two 7 can not rotate relatively and wearing and tearing with upper cover 1, and the long service life of rubber circle two 7, and conflict portion two 8 is contradicted in the inner wall of lower cover 2 all the time moreover, has guaranteed the leakproofness between 2 inner walls of lower cover and the cover establishment portion two 6, prevents foreign matters such as dust, muddy water and gets into between lower cover 2 and the upper cover 1, avoids bad problems such as viscous, wearing and tearing, corrosion, has prolonged life.
The outer wall of the lower cover 2 is provided with a convex ring 9 which is positioned below the rubber ring I3 and protrudes outwards in the radial direction, the outer diameter of the convex ring 9 is larger than that of the rubber ring I3, the bottom of the covering part I5 is provided with a circle of covered edge 10 which covers the outer side of the convex ring 9, and the convex ring 9 and the covered edge 10 are arranged to play a role in blocking foreign matters such as dust, muddy water and the like, so that the entering amount of the foreign matters such as the dust, the muddy water and the like is reduced, the working pressure of the rubber ring I3 is reduced, the rubber ring I3 is guaranteed to be effectively sealed all the time, and the service life is guaranteed; the edge covering 10 is provided with a plurality of through holes 11 which axially penetrate through, the through holes 11 are used for dust and muddy water to circulate and offset, the impact of the dust and the muddy water on the rubber ring I3 is reduced, the dust and the muddy water cannot be retained between the edge covering 10 and the convex ring 9, the sealing performance of the rubber ring I3 is guaranteed, and the service life is prolonged.
The inner wall of the lower cover 2 is provided with a third annular groove 12, a second abutting part 8 extends into the third annular groove 12 and elastically abuts against the bottom of the third annular groove 12, the third annular groove 12 provides a yielding space, so that the size of the second rubber ring 7 does not need to be too small, the second rubber ring 7 is convenient to manufacture, and the third annular groove 12 and the second abutting part 8 are matched to play a role in labyrinth sealing, so that the sealing performance is improved, and the service life is prolonged; in this embodiment, first 4 protruding circle one that conflict portion has for 3 outer wall middle parts of rubber circle, protruding circle two 8 that conflict portion has for two 7 outer wall middle parts of rubber circle two, protruding circle one is the fillet transition with the transition department of rubber circle 3 and protruding circle two with the transition department of rubber circle two 7, the fillet transition avoids stress concentration, protruding circle one and protruding circle two conflict ends between them are the fillet, protruding circle one and protruding circle two contact area between them are little, wearing and tearing are little, can not interfere upper cover 1 and lower cover 2 relative rotation, long service life.
The supporting structure in this embodiment includes steel balls 15, a retainer 16, an upper raceway 17 and a lower raceway 18, the upper raceway 17 is annular, the inner side of the upper raceway 17 has an arc-shaped surface for the steel balls 15 to be attached, the bending part of the inner side of the upper cover 1 is an arc-shaped surface attached to the outer side of the upper raceway 17, the lower raceway 18 is annular, the inner side of the lower raceway 18 has an arc-shaped surface for the steel balls 15 to be attached, the top of the lower cover 2 has an arc-shaped surface attached to the outer side of the lower raceway 18, the retainer 16 is located between the upper raceway 17 and the lower raceway 18, each steel ball 15 is located in the retainer 16, the upper raceway 17 has an upper extending portion 19 which extends toward the lower raceway 18 and is cylindrical, the upper extending portion 19 is attached to the inner side wall edge of the upper cover 1, the lower raceway 18 has a lower extending portion 20 which extends toward the lower cover 2 and is cylindrical, and the lower cover 2 has a groove for the lower extending portion 20 to be embedded. The upper raceway 17 and the lower raceway 18 are stably positioned, the steel balls 15 are limited by the retainer 16, and the working stability is good; the arrangement of the upper extension part 19 and the lower extension part 20 improves the positioning stability of the upper roller path 17 and the lower roller path 18, avoids shaking, reduces the abrasion of the steel balls 15 and prolongs the service life. Certainly during actual manufacturing, bearing structure can be for the wear pad that lower cover 2 top was inlayed and is equipped with, and the bottom of upper cover 1 contacts in the top of wear pad protrusion in lower cover 2, and the wear pad plays the supporting role, and the wearability is good, long service life.
The top of the outer wall of the lower cover 2 is provided with a buckle 21 which is bent outwards, and the inner wall of the upper cover 1 is provided with a retaining ring 22 which is protruded inwards in the radial direction and extends into the buckle 21. Through buckle 21 and retaining ring 22's setting for upper cover 1 and 2 looks blocks of lower cover, buckle 21 and retaining ring 22 all are located the upper portion of rubber circle 3 moreover, do not exist and interfere, and are smooth and easy when upper cover 1 and 2 blocks of lower cover, and buckle 21 and retaining ring 22 also form labyrinth seal, have improved the leakproofness, have prolonged life.
For the structural strength is high, the bearing capacity is good, the service life is long, the inner ring of the upper cover 1 is provided with the upper reinforcing ribs 23 which are circumferentially uniformly distributed and axially extend, and the inner ring of the lower cover 2 is provided with the lower reinforcing ribs 24 which are circumferentially uniformly distributed and axially extend.
Example 2
As shown in fig. 3, the structure and principle of the present embodiment are substantially the same as those of embodiment 1, and the difference lies in that the upper surface and the lower surface of both the rubber ring i 3 and the rubber ring ii 7 in the present embodiment are conical surfaces to form the first abutting portion i 4 and the second abutting portion i 8 with thinner thicknesses, and the abutting ends of both the first abutting portion i 4 and the second abutting portion i 8 are rounded corners, so that the structural strength is high, the wear is small, and the service life is long.
Example 3
As shown in fig. 4, the structure and principle of the present embodiment are substantially the same as those of embodiment 1, and there is a difference that the inner wall of the lower cover 2 in the present embodiment has a diameter-expanded section 13, the inner diameter of the diameter-expanded section 13 is larger than that of the inner wall of the lower cover 2, the abutting portion two 8 abuts against the diameter-expanded section 13, the transition portion between the first convex ring and the first rubber ring 3 and the transition portion between the second convex ring and the second rubber ring 7 are rounded transitions, and the middle portions of the first convex ring and the second convex ring are provided with an upward arched portion 14. The fillet sets up the transition department that makes protruding circle one and protruding circle two can not stress concentration, and is difficult for the damage, and the hunch portion 14 has increased the structural strength and the shock resistance of protruding circle one and protruding circle two, and the impact of foreign matters such as dust, muddy water can not cause protruding circle one and protruding circle two to be out of shape, and protruding circle one and protruding circle two have guaranteed the leakproofness.
Example 4
As shown in fig. 5, the structure and principle of the present embodiment are substantially the same as those of embodiment 1, and there is a difference that the inner wall of the lower cover 2 in the present embodiment has a diameter-expanding section 13, the inner diameter of the diameter-expanding section 13 is larger than that of the inner wall of the lower cover 2, the second abutting portion 8 abuts against the diameter-expanding section 13, the first abutting portion 4 is a first conical ring arranged in the middle of the outer wall of the first rubber ring 3, the second abutting portion 8 is a second conical ring arranged in the middle of the outer wall of the second rubber ring 7, the upper and lower surfaces of the first conical ring and the second conical ring are both conical surfaces, the abutting ends of the first conical ring and the second conical ring are both rounded corners, and the first conical ring and the second conical ring have good structural firmness, low wear and long service life.
Example 5
As shown in fig. 6, the structure and principle of the present embodiment are substantially the same as those of embodiment 1, and there is a difference that the inner wall of the lower cap 2 in the present embodiment has a diameter-expanded section 13, the inner diameter of the diameter-expanded section 13 is larger than that of the inner wall of the lower cap 2, the abutting portion two 8 abuts against a step surface formed between the diameter-expanded section 13 and the inner wall of the lower cap 2, the abutting portion one 4 is a circle of first rib provided on the outer wall of the rubber ring one 3, the bottom surface of the first rib is flush with the bottom surface of the rubber ring one 3, the upper surface of the first rib is a conical surface and the abutting end of the first rib is a round angle, the abutting portion two 8 is a circle of second rib provided on the outer wall of the rubber ring two 7, the bottom surface of the second rib is flush with the bottom surface of the rubber ring two 7, the upper surface of the second rib is a conical surface and the abutting end of the second rib is a round angle, the bottom surface of the second rib abuts against the step surface to ensure an ideal sealing effect, the structural firmness of the first rib and the second rib is good, the abrasion is small, and the service life is long.
Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.