CN212860984U - Abnormal sound prevention control arm bushing structure - Google Patents

Abstract

The utility model discloses a prevent control arm bush structure of abnormal sound, including inner core, rubber spare and overcoat, the tip of overcoat is provided with the turn-ups, and the rubber spare covers and marks as buffering portion in the turn-ups, and buffering portion surface still is provided with the bellied segmental arc of a plurality of, and the segmental arc surface is covered with the bump. Set up buffer structure on the rubber spare, solve the control arm bush and twist reverse the abnormal sound problem under the operating mode at low temperature, improve and take the travelling comfort.

Description

Abnormal sound prevention control arm bushing structure

Technical Field

The utility model relates to an automobile parts especially relates to a prevent control arm bush structure of abnormal sound.

Background

The assembling position of the automobile control arm bushing is a front suspension lower rear control arm. The control arm bushing structure comprises an inner core, rubber and an outer sleeve. After the bushing is pressed into the inner hole of the control arm, the bushing is fixed between the two flange surfaces, and the two ends of the bushing are connected with the chassis into a whole through bolts.

When the temperature of the environment in which the vehicle is used is excessively low, the rubber becomes hard, the elongation is reduced, that is, the elastic deformability becomes poor. When the circumferential friction force generated by the elastic interference fit of the matching surfaces of the rubber body and the metal bracket is not enough to resist the torsion generated when the metal bracket works, the rubber body and the metal bracket can rotate relatively to the circumference at the matching position, so that abnormal sound is generated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a prevent control arm bush structure of abnormal sound sets up buffer structure on the rubber spare, solves the abnormal sound problem of control arm bush under the low temperature torsion operating mode, improves and takes the travelling comfort.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: prevent control arm bush structure of abnormal sound, including inner core, rubber spare and overcoat, the tip of overcoat be provided with the turn-ups, the rubber spare cover and mark as buffering portion in the turn-ups, buffering portion surface still be provided with the bellied segmental arc of a plurality of, segmental arc surface be covered with the bump.

The utility model discloses further preferred scheme: the rubber part still be provided with two C type slotted holes, two slotted holes are located the both sides of inner core respectively and set up back on the back of the body.

The utility model discloses further preferred scheme: the wall surface of the slotted hole is provided with transverse textures and vertical textures, and the transverse textures and the vertical textures are arranged oppositely.

The utility model discloses further preferred scheme: the inner core is a tubular structural part with the diameter of the middle part larger than that of the end part.

The utility model discloses further preferred scheme: the rubber piece comprises an inner ring wrapped on the periphery of the inner core, an outer ring of the lining and the inner wall of the outer sleeve, and a connecting piece for connecting the inner ring and the outer ring.

The utility model discloses further preferred scheme: the horizontal texture is arranged on the periphery of the inner ring, and the vertical texture is arranged close to the outer ring.

The utility model discloses further preferred scheme: the transverse texture comprises a plurality of inwards concave transverse stripes, and the transverse stripes are mutually parallel and are arranged at equal intervals.

The utility model discloses further preferred scheme: the vertical texture comprises a plurality of inward sunken longitudinal stripes, and the longitudinal stripes are mutually parallel and are arranged at equal intervals.

The utility model discloses further preferred scheme: the transverse textures and the vertical textures are located on the same diameter direction of the inner core.

The utility model discloses further preferred scheme: the outer end face of the inner core is fully distributed with gear teeth.

Compared with the prior art, the utility model has the advantages of, be provided with the buffering portion that rubber constitutes in the turnover department of overcoat. And the surface of buffering portion still is provided with the bellied segmental arc of a plurality of, and the segmental arc can play axial shock attenuation cushioning effect, also can play the crashproof of circumference and prevent abnormal sound. Further, the arch section surface is covered with the bump the utility model discloses a when the relative rotation takes place for the bush, reduce the friction of rubber and metal support, eliminate the production of abnormal sound, improve the NVH performance.

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 front view of the present invention;

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

fig. 3 is a cross-sectional view of the AA section of fig. 1.

Wherein the reference numerals are specified as follows: the rubber part comprises an inner core 1, a rubber part 2, an outer sleeve 3, a flanging 4, a buffering part 5, an arc-shaped section 6, a slotted hole 7, a transverse texture 8, a vertical texture 9, an inner ring 2a, an outer ring 2b and a connecting piece 2 c.

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 3: prevent control arm bush structure of abnormal sound, including inner core 1, rubber spare 2 and overcoat 3, the tip of overcoat 3 is provided with turn-ups 4, and rubber spare 2 covers and marks as buffering portion 5 in turn- ups 4, and 5 surfaces in buffering portion still are provided with the bellied segmental arc 6 of a plurality of, and the 6 surfaces in segmental arc are covered with the bump.

Preferably, the utility model discloses set up four segmental arcs 6.

The rubber part 2 is also provided with two C-shaped slotted holes 7, and the two slotted holes 7 are respectively positioned on two sides of the inner core 1 and are arranged back to back. Set up two slotted holes 7, can improve the utility model discloses performance when the bush atress twists reverse.

The wall surface of the slot hole 7 is provided with a transverse texture 8 and a vertical texture 9, and the transverse texture 8 is opposite to the vertical texture 9. When the bush atress takes place radial displacement, two walls of slotted hole 7 bump, and horizontal texture 8 and vertical texture 9 can make the utility model discloses better shock attenuation shock-absorbing capacity has.

The inner core 1 is a tubular structural member with the diameter of the middle part larger than that of the end part. The utility model discloses an inner core 1 adopts special-shaped tubular structure, effectively strengthens the utility model discloses a structural strength also improves the utility model discloses at axial shock attenuation buffering effect.

Specifically speaking, the utility model discloses a rubber component 2 is including the outer lane 2b of parcel at the inner circle 2a of 1 periphery of inner core, inside lining and 3 inner walls of overcoat and the connecting piece 2c of connecting inner circle 2a and outer lane 2 b.

The utility model discloses further preferred structure does: the transverse textures 8 are arranged on the periphery of the inner ring 2a, and the vertical textures 9 are arranged close to the outer ring 2 b.

Specifically, the transverse texture 8 includes a plurality of transverse stripes recessed inward, and the plurality of transverse stripes are parallel to each other and arranged at equal intervals.

Specifically, the vertical texture 9 includes a plurality of longitudinal stripes recessed inward, and the plurality of longitudinal stripes are parallel to each other and arranged at equal intervals.

The transverse grain 8 is located on the same diameter of the core 1 as the vertical grain 9.

The outer end face of the inner core 1 is fully distributed with gear teeth. The gear teeth on the end face of the inner core 1 of the bush can directly act on the flange face.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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. Prevent control arm bush structure of abnormal sound, including inner core, rubber spare and overcoat, its characterized in that the tip of overcoat be provided with the turn-ups, the rubber spare cover and mark as buffering portion in the turn-ups, buffering portion surface still be provided with the bellied segmental arc of a plurality of, segmental arc surface be covered with the bump.

2. The abnormal-sound-preventing control arm bushing structure according to claim 1, wherein the rubber member further has two C-shaped slots, and the two C-shaped slots are respectively located on two sides of the inner core and are oppositely arranged.

3. The anti-abnormal-sound control arm bushing structure according to claim 2, wherein the wall surface of the slot hole is provided with a horizontal texture and a vertical texture, and the horizontal texture and the vertical texture are arranged oppositely.

4. The anti-rattle control arm bushing structure of claim 3, wherein said inner core is a tubular structure having a central portion with a diameter greater than a diameter of the end portions.

5. The abnormal sound prevention control arm bushing structure according to claim 4, wherein the rubber member includes an inner ring wrapped around the outer periphery of the inner core, an outer ring formed by the inner liner and the inner wall of the outer sleeve, and a connecting member connecting the inner ring and the outer ring.

6. The anti-rattle control arm bushing structure of claim 5, wherein the lateral texturing is provided on the outer periphery of the inner race and the vertical texturing is provided adjacent the outer race.

7. The anti-rattle control arm bushing structure of claim 3, wherein said lateral texture comprises a plurality of inwardly recessed lateral stripes, said plurality of lateral stripes being parallel to each other and equally spaced.

8. The anti-rattle control arm bushing structure of claim 3, wherein said vertical texture comprises a plurality of inwardly recessed longitudinal stripes, said plurality of longitudinal stripes being parallel to each other and equally spaced.

9. The anti-rattle control arm bushing structure of claim 3, wherein the transverse grain and the vertical grain are located on the same diameter of the core.

10. The anti-rattle control arm bushing structure of claim 1, wherein the inner core has gear teeth distributed over an outer end surface thereof.

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