CN210265747U - Axial limiting structure for outer retainer ring of differential bushing - Google Patents

Abstract

The utility model discloses an axial limit structure of outer retaining ring of differential mechanism bush, including inner frame, rubber spare and outer skeleton, the inner frame overcoat has two outer retaining rings from top to bottom, and the both sides edge of outer retaining ring extends and keeps off the ring, and the edge that keeps off the ring is provided with the support arm that keeps off the ring towards another, and two support arms that keep off the ring support each other and lean on, and including the rubber spare will keep off outer retaining ring, keep off ring, support arm and all wrap up, outer skeleton both ends throat will keep off the ring and receive in it. The outer retainer ring is arranged, so that the problem that the automobile internal parts collide with each other due to overlarge axial braking force applied to the differential bushing is solved, and the structure of the differential bushing is optimized.

Description

Axial limiting structure for outer retainer ring of differential bushing

Technical Field

The utility model relates to an automobile parts especially relates to a differential mechanism bush outer retainer ring axial limit structure.

Background

The automobile differential is an important part arranged on an automobile rear auxiliary frame, the differential is widely applied to the automobile industry, three bushing mounting holes are formed in the automobile rear auxiliary frame, two bushing mounting holes are formed in the three bushing mounting holes and are located at the rear, and one bushing mounting hole is located at the front. The differential bushing is mounted in a bushing mounting hole of each automobile rear subframe, the differential is connected with the differential bushing through bolts, and the differential bushing is used for isolating vibration between an automobile body and the differential through the energy absorption effect of the rubber element so as to obtain better riding comfort and durability.

The automobile differential bushing in the prior art comprises an inner framework, a vulcanized rubber filling body and an outer framework which are coaxially arranged from inside to outside in sequence, wherein the inner framework is in a cylindrical shape, a through hole which is parallel to the inner framework in the axial direction in cross section is formed in the center of the inner framework and is in a circular shape, and the inner framework is in an internal hollow cylindrical structure. The outer framework is also of a cylindrical structure with a hollow interior. In the existing automobile driving process, the axial braking force applied to a differential bushing is found to be too large, so that the differential is easily impacted with an automobile internal structure, and even rubber in the differential bushing is broken.

To the above-mentioned problem, my driver engineer has designed the utility model discloses differential mechanism bush outer check ring axial limit structure to improve prior art's problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an outer retaining ring axial limit structure of differential mechanism bush is provided, sets up outer retaining ring, solves the too big problem that causes the collision each other of car inner part of axial braking force that the differential mechanism bush received to optimize the structure of differential mechanism bush.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: differential mechanism bush outer retaining ring axial limit structure, including inner frame, rubber spare and outer skeleton, the inner frame overcoat have two outer retaining rings from top to bottom, the both sides edge of outer retaining ring extend and keep off the ring, the edge of keeping off the ring be provided with the support arm towards another fender ring, two support arms of two fender rings support each other and lean on, the rubber spare will outer retaining ring, keep off including ring, support arm all wrap up, outer skeleton both ends throat will keep off the ring and receive in it.

The utility model discloses further preferred scheme: the baffle ring is connected with the outer baffle ring above to form an upper baffle ring, the upper baffle ring is of a fan-shaped structure which is arranged in a downward inclined mode, and the two upper baffle rings are connected with the periphery of the outer baffle ring in a left-right mode.

The utility model discloses further preferred scheme: the baffle ring is connected with the outer baffle ring below to form a lower baffle ring, the lower baffle ring is of a sector ring structure which is inclined upwards, and the two lower baffle rings are connected with the periphery of the outer baffle ring in a left-right mode and correspond to the upper baffle ring.

The utility model discloses further preferred scheme: two support arms that support each other and lean on divide into support arm and lower support arm, the bottom surface of last support arm including supporting face, embedding face or the face of stretching out, the lower support arm including supporting the face and with the embedding face structure suited stretch out the face or with the embedding face that the face structure suited that stretches out, support arm support the face of supporting, support the face contact connection that supports down, the embedding face with stretch out the face and be the inclined plane.

The utility model discloses further preferred scheme: the extending surface is attached to the embedding surface in a matched mode, and the embedding surface is located on the outer side of the abutting surface.

The utility model discloses further preferred scheme: the abutting surface, the embedding surface and the extending surface are exposed outside the rubber piece.

The utility model discloses further preferred scheme: the rubber spare parcel outside inner frame and filled the interval between outer retaining ring and the inner frame, there is the outer retaining ring in space between the rubber spare of parcel outside inner frame and the rubber spare of parcel outside the support arm.

The utility model discloses further preferred scheme: the inner wall of the closing opening of the outer framework is an inclined plane and is matched with the retaining ring structure.

The utility model discloses further preferred scheme: the both sides of exoskeleton be provided with sunken sunk structure in, sunken structure with the support arm stagger each other, sunk structure divide into interior concave surface and the interior concave surface down on going, rubber spare periphery be provided with the protruding structure of the card of a plurality of bars, the protruding structure of card be located go upward between interior concave surface, the interior concave surface down.

The utility model discloses further preferred scheme: the cross section of the inner hole of the inner framework is of a polygonal structure.

Compared with the prior art, the utility model has the advantages of two outer retaining rings about the inner frame overcoat has, and the both sides edge of outer retaining ring extends and keeps off the ring, and including outer retaining ring, fender ring parcel, at first through the outer retaining ring of embedding rubber spare, keep off the ring and solve pure rubber structural strength not enough, problem that probably splits. Then the edge of the baffle ring is provided with a support arm facing to the other baffle ring, and the two support arms of the two baffle rings are mutually abutted. Two outer retaining rings, two retaining rings carry out the axial spacing through the support arm, ensure the interval between two outer retaining rings, solve the axial braking force that the differential mechanism bush received and too big and cause the problem that car internal part collided each other. The two ends of the outer framework are contracted to contain the baffle ring, and the position of the baffle ring is further limited, so that the axial limiting is realized.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a second schematic view of the internal structure;

FIG. 4 is a cross-sectional view of the cross-section taken along the X-axis of FIG. 3;

FIG. 5 is a cross-sectional view of the Y-axis cross-section of FIG. 3;

fig. 6 is a partially enlarged view at C in fig. 4.

Detailed Description

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

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1 to 6: differential mechanism bush outer retaining ring axial limit structure, including inner frame 1, rubber spare 2 and outer skeleton 3, two outer retaining rings 4 about 1 overcoat of inner frame has, the both sides edge of outer retaining ring 4 extends to keep off ring 5, keeps off ring 5's edge and is provided with the support arm 6 that keeps off ring 5 towards another, two support arms 6 of two retaining rings 5 support each other and lean on, rubber spare 2 will keep off ring 4 outward, keep off ring 5, support arm 6 all wraps up including, 3 both ends necking down of outer skeleton will keep off ring 5 and receive in it.

Keep off ring 5 and the outer retainer 4 of top and be connected for keeping off ring 5, keep off ring 5 for the fan ring shape structure of downward sloping setting on going up, keep off ring 5 one left side one right side on two and link up in the periphery of keeping off ring 5 outward.

The baffle ring 5 is connected with the outer retainer ring 4 below to be the lower baffle ring 5, the lower baffle ring 5 is the sector annular structure that the tilt up set up, two baffle rings 5 link up on the left and right sides in the periphery of outer baffle ring 5 and correspond with last baffle ring 5 down. The baffle ring 5 with the fan-shaped structure is arranged, so that the problem that the rubber part 2 is broken due to overlarge stress is effectively solved. Just the utility model discloses still keep better damping effect.

The two support arms 6 which are abutted against each other are divided into an upper support arm and a lower support arm, the bottom surface of the upper support arm comprises an abutting surface 7a, an embedded surface 7b or an extending surface 7c, the lower support arm comprises an abutting surface 7a and an extending surface 7c which is matched with the structure of the embedded surface 7b or an embedded surface 7b which is matched with the structure of the extending surface 7c, the abutting surface 7a of the upper support arm and the abutting surface 7a of the lower support arm are in contact connection, and the embedded surface 7b and the extending surface 7c are inclined surfaces. The utility model discloses the contact surface of well middle and upper support arm and lower support arm can be planar structure's support face 7a, also can be the support face 7a of echelonment, can be the embedding face 7b cooperation of inclined plane structure and stretch out face 7c, also can be the support face 7a of sawtooth shape that can intermeshing. The contact surfaces of other constructions can also limit the radial movement of the outer collar 4, 5 to a certain extent compared to the contact surfaces of completely planar constructions.

The utility model discloses in designed the contact surface between two support arms 6 including leaning on face 7a and embedding face 7b or stretching out face 7c, stretch out the cooperation of face 7c and paste on embedding face 7b, embedding face 7b is located the outside of leaning on face 7 a. This is the preferred structure of the present invention.

The abutting surface 7a, the embedded surface 7b and the protruding surface 7c are exposed outside the rubber member 2.

The rubber part 2 wraps the inner framework 1 and is filled with the space between the outer retainer ring 4 and the inner framework 1, and the outer retainer ring 4 in the space exists between the rubber part 2 wrapped outside the inner framework 1 and the rubber part 2 wrapped outside the support arm 6.

The inner wall of the closing opening of the outer framework 3 is an inclined plane and is matched with the structure of the baffle ring 5.

The both sides of exoskeleton 3 are provided with sunken concave structure in, and sunken structure staggers each other with support arm 6, and concave structure divide into interior concave surface 8 and interior concave surface 9 down going upward, and 2 peripheries of rubber spare are provided with the protruding structure 10 of the card of a plurality of bars, and the protruding structure 10 of card is located and goes upward between interior concave surface 8, the interior concave surface 9 down. The utility model discloses has high structural strength.

The cross section of the inner hole of the inner framework 1 is of a polygonal structure.

The above is to the utility model discloses going on the detailed introduction, having used specific individual example to right in this paper the utility model discloses a principle and implementation mode have been elucidated, and the explanation of above embodiment only is used for helping understanding the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (10)

1. Differential mechanism bush outer retaining ring axial limit structure, including inner frame, rubber spare and outer skeleton, its characterized in that the inner frame overcoat have two outer retaining rings from top to bottom, the both sides edge of outer retaining ring extend and keep off the ring, the edge that keeps off the ring be provided with the support arm that keeps off the ring towards another, two support arms that keep off the ring support each other and lean on, the rubber spare will outer retaining ring, keep off including ring, support arm all wrap up, outer skeleton both ends throat will keep off the ring and receive in it.

2. The axial limiting structure of the outer retainer ring of the differential bushing according to claim 1, wherein the retainer ring is connected with the upper outer retainer ring to form an upper retainer ring, the upper retainer ring is of a downwardly inclined fan-shaped structure, and the two upper retainer rings are connected to the periphery of the outer retainer ring one by one.

3. The axial limit structure of the differential bushing outer retainer according to claim 2, wherein the retainer is connected to the lower outer retainer as a lower retainer, the lower retainer is an upwardly inclined fan-shaped ring structure, and the two lower retainers are connected to the outer periphery of the outer retainer one by one and correspond to the upper retainer.

4. The axial limit structure of an outer retainer ring of a differential bushing according to claim 1, wherein the two arms abutting against each other are divided into an upper arm and a lower arm, the bottom surface of the upper arm includes an abutting surface, an embedding surface or an extending surface, the lower arm includes an abutting surface and an extending surface adapted to the structure of the abutting surface or the embedding surface adapted to the structure of the extending surface, the abutting surface of the upper arm and the abutting surface of the lower arm are in contact connection, and the abutting surface and the extending surface are both inclined surfaces.

5. The axial restraining structure for an outer retainer ring of a differential bushing according to claim 4, wherein said projecting surface is fitted against an insert surface, said insert surface being located outside said abutting surface.

6. The axial spacing structure for an outer retainer ring of a differential bushing according to claim 4, wherein said abutting surface, said insertion surface, and said protruding surface are exposed to the outside of the rubber member.

7. The axial limiting structure of the outer retainer ring of the differential bushing according to claim 1, wherein the rubber member is wrapped around the inner frame and fills a gap between the outer retainer ring and the inner frame, and a space outer retainer ring is provided between the rubber member wrapped around the inner frame and the rubber member wrapped around the support arm.

8. The axial limiting structure of an outer retainer ring of a differential bushing according to claim 1, wherein an inner wall of the mouth of the outer frame is an inclined surface adapted to the retainer ring structure.

9. The axial limiting structure of an outer check ring of a differential bushing according to claim 1, wherein recessed structures are arranged on two sides of the outer frame, the recessed structures and the support arms are staggered with each other, the recessed structures are divided into an upward inner concave surface and a downward inner concave surface, a plurality of strip-shaped clamping convex structures are arranged on the periphery of the rubber part, and the clamping convex structures are located between the upward inner concave surface and the downward inner concave surface.

10. The axial spacing structure of an outer retainer ring of a differential bushing according to claim 1, wherein the cross section of the inner bore of the inner frame is a polygonal structure.

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