CN213501839U

CN213501839U - Multistage vibration isolation support

Info

Publication number: CN213501839U
Application number: CN202021804173.6U
Authority: CN
Inventors: 季明; 谭学钢; 马云娇; 丁永飞
Original assignee: Zhejiang Leapmotor Technology Co Ltd
Current assignee: Zhejiang Zero Run Technology Co Ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-06-22
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses a multistage vibration isolation support, including support body, one-level bush and second grade bush are located the support body, are equipped with inner frame, characterized by in the one-level bush, inner frame is including support chassis and bonding skeleton, and the bonding skeleton is located between one-level bush and the support chassis. The utility model has the advantages that the traditional integrally formed inner framework is split into two parts, the bonding framework is made of light materials, the production cost of the vibration isolation bracket is reduced, and the lightweight effect is achieved; the primary bushing and the secondary bushing realize a two-stage vibration isolation structure, so that the NVH performance of the suspension is enhanced; the vibration isolation function is reliable.

Description

Multistage vibration isolation support

Technical Field

The utility model belongs to the technical field of the vibration isolation support, specifically a multistage vibration isolation support.

Background

One-level vibration isolation is adopted in the traditional vibration reduction, and the high-frequency small displacement rigidity is too high, so that the vibration isolation effect is poor. In order to improve the damping effect, the existing suspension also adopts a secondary vibration isolation support, for example, in the chinese patent document, the publication number is CN 209535208U, and the publication number is "suspension vibration isolation component for electric vehicle and electric vehicle" disclosed in 2019, 10, 25, 2019, this application discloses a suspension vibration isolation component for electric vehicle and electric vehicle, wherein, the suspension vibration isolation component for electric vehicle comprises an auxiliary frame fixing part, a transmission fixing part, a support body connecting the auxiliary frame fixing part with the transmission fixing part, the auxiliary frame fixing part is provided with a through auxiliary frame mounting hole, a primary vibration isolation component is pressed in the auxiliary frame mounting hole, the primary vibration isolation component comprises a first inner frame, an interference fit press-fit part, a primary vibration isolation part, a second vibration isolation part, a third vibration isolation part and a fourth vibration isolation part which are sequentially arranged from inside to outside on the outer peripheral surface of the inner frame, The auxiliary frame fixing part body is arranged on the outer peripheral surface of the primary vibration isolation piece, at least one transmission mounting hole is formed in the transmission fixing part far away from the support body, and a secondary vibration isolation assembly is arranged in the transmission mounting hole in a pressing mode.

The vibration isolation support in the prior art has the following defects: the inner frame is directly connected with the primary vibration isolation piece, in the prior art, the inner frame mostly adopts a cold-drawing aluminum mode, and the weight of the special pipe structure is large, so that the cost is high.

Disclosure of Invention

Based on the problem, the utility model provides a multistage vibration isolation support adopts two-stage vibration isolation structure, and the reinforcing NVH performance reduces the manufacturing cost of vibration isolation support to have the lightweight effect concurrently.

In order to realize the utility model purpose, the utility model adopts the following technical scheme:

the utility model provides a multistage vibration isolation support, includes support body, one-level bush and second grade bush, and one-level bush and second grade bush are located the support body, are equipped with inner frame, characterized by in the one-level bush, inner frame includes support chassis and bonding skeleton, and the bonding skeleton is located between one-level bush and the support chassis.

The traditional integrally formed inner framework is split into two parts, and the bonding framework is made of light materials, so that the production cost of the vibration isolation support is reduced, and the lightweight effect is achieved; the one-level bushing and the second-level bushing realize a two-stage vibration isolation structure, and the NVH performance of the suspension is enhanced.

Preferably, the outer side of the supporting framework is provided with a plurality of protruding ribs, and the bonding framework is provided with grooves matched with the protruding ribs. The convex ribs and the grooves are matched to form a large bonding area, bonding stability can be improved, the convex ribs and the grooves are matched to form a limiting supporting structure, and matching limiting capacity of a bonding framework and a supporting framework is improved.

Preferably, the raised ribs are arranged in a circular array about the axis of the support skeleton. The groove and the protruding rib are matched to achieve reliable limiting and fixing.

Preferably, the bonding framework is made of plastic materials; the support framework is made of cold-drawn aluminum, and the bonding framework is bonded with the support framework through ultrasonic waves. The manufacture is convenient and the reliability is good.

Preferably, the bonding framework comprises an inner ring, an outer ring and connecting ribs, the connecting ribs are connected with the inner ring and the outer ring, the connecting ribs are arranged in a circumferential array around the axis of the inner ring, and through grooves are formed between adjacent connecting ribs; the groove is positioned on a straight line extending from the connecting rib to the inner ring. The connecting ribs are connected with the protruding ribs in a matched mode, the material cost of the bonding framework is reduced due to the fact that the through grooves of the bonding framework are formed, the elastic supporting capacity can be improved, and meanwhile the production cost is reduced.

Preferably, the first-stage lining is provided with an arc-shaped groove, and the second-stage lining adopts a solid circular ring structure; the arc-shaped grooves are symmetrically arranged on the side face of the first-stage bushing, and the inner peripheral surface of the first-stage bushing and the outer peripheral surface of the bonding framework are provided with matched limiting surfaces. The limiting surface prevents the first-stage bushing and the bonding framework from rotating relatively, the arc-shaped groove on the first-stage bushing realizes material-saving arrangement of the first-stage bushing, and meanwhile, the reliable elastic deformation capability is improved, and the effects of shock absorption and noise reduction are achieved; the secondary lining has stable structure and reliable supporting function, and the two bushings are matched to ensure reliable vibration isolation.

To sum up, the beneficial effects of the utility model are that: the traditional integrally formed inner framework is split into two parts, and the bonding framework is made of light materials, so that the production cost of the vibration isolation support is reduced, and the lightweight effect is achieved; the primary bushing and the secondary bushing realize a two-stage vibration isolation structure, so that the NVH performance of the suspension is enhanced; the vibration isolation function is reliable.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Wherein: the arc-shaped grooves 21 of the primary liner 2 and the secondary liner 3 of the reinforcing ring 12 of the reinforcing rib 11 of the bracket body 1 support the protruding ribs 41 of the framework 4, the inner ring 51 and the connecting ribs 52 of the outer ring 53 and the limiting surfaces 54 of the through grooves 55.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Examples

As shown in fig. 1, for a multistage vibration isolation support, including support body 1, one-level bush 2 and second grade bush 3 are located support body 1, second grade bush 3 is provided with four, four second grade bushes 3 are the axisymmetric setting, be equipped with on the support body 1 correspond with one-level bush 2 and second grade bush 3's beaded finish 12, beaded finish 12 outside on the support body 1 is equipped with the strengthening rib 11 that extends to second grade bush 3 from one-level bush 2, through strengthening rib 11 in order to improve support body 1's intensity. Be equipped with inner frame, characterized by in the one-level bush 2, inner frame includes supporting framework 4 and bonding skeleton, and bonding skeleton is located between one-level bush 2 and supporting framework 4.

Eight protruding ribs 41 are arranged on the outer side of the supporting framework 4, and grooves matched with the protruding ribs 41 are arranged on the bonding framework. The projecting ribs 41 are arranged in a circular array about the axis of the support skeleton 4. The supporting framework 4 is in a ring shape, and a key groove is formed in the inner side of the supporting framework 4 and used for being connected with an external structure. The bonding framework is made of plastic materials; the supporting framework 4 is made of cold-drawn aluminum, and the bonding framework and the supporting framework 4 are formed by ultrasonic bonding. The bonding framework comprises an inner ring 51, an outer ring 53 and connecting ribs 52, the connecting ribs 52 are connected with the inner ring 51 and the outer ring 53, the connecting ribs 52 are arranged in a circumferential array around the axis of the inner ring 51, and through grooves 55 are formed between the adjacent connecting ribs 52; the grooves are located on a straight line where the tie bars 52 extend toward the inner ring 51. Be equipped with arc wall 21 on one-level bush 2, arc wall 21 is equipped with two, and two arc walls 21 are in the side symmetry setting of one-level bush 2, and the width at the both ends of arc wall 21 enlarges to the twice of arc wall 21 width, forms both ends major part structure, further strengthens province's material effect. The secondary lining 3 adopts a solid ring structure; the inner peripheral surface of the first-level bushing 2 and the outer peripheral surface of the bonding framework are provided with matched limiting surfaces 54, and the limiting surfaces 54 are positioned.

According to the vibration isolation support, the traditional integrally formed inner framework is split into two parts, the bonding framework is made of light materials, the production cost of the vibration isolation support is reduced, and the light weight effect is achieved; the first-stage bushing 2 and the second-stage bushing 3 realize a two-stage vibration isolation structure, so that the NVH performance of the suspension is enhanced; the vibration isolation function is reliable.

It will be appreciated by those of ordinary skill in the art that the examples described herein are intended to assist the reader in understanding the manner of practicing the invention, and it is to be understood that the scope of the invention is not limited to such specific statements and examples. Those skilled in the art can make various other specific modifications and combinations based on the teachings of the present invention without departing from the spirit of the invention, and such modifications and combinations are still within the scope of the invention.

Claims

1. The utility model provides a multistage vibration isolation support, includes one-level bush and second grade bush, is equipped with inner frame, characterized by in the one-level bush, inner frame includes support chassis and bonding skeleton, and the bonding skeleton is located between one-level bush and the support chassis.

2. The multi-stage vibration isolating bracket as claimed in claim 1, wherein the supporting frame has a plurality of protruding ribs on the outer side thereof, and the bonding frame has grooves for the protruding ribs.

3. The multi-stage vibration isolator mount of claim 2, wherein said raised ribs are arranged in a circular array about the axis of the support frame.

4. The multi-stage vibration isolating support according to claim 1, 2 or 3, wherein said adhesive frame is made of plastic material; the support framework is made of cold-drawn aluminum, and the bonding framework is bonded with the support framework through ultrasonic waves.

5. The multi-stage vibration isolation support according to claim 2 or 3, wherein the bonding framework comprises an inner ring, an outer ring and connecting ribs, the connecting ribs are connected with the inner ring and the outer ring, the connecting ribs are arranged in a circumferential array around the axis of the inner ring, and through grooves are formed between adjacent connecting ribs; the groove is positioned on a straight line extending from the connecting rib to the inner ring.

6. The multi-stage vibration isolating support according to claim 1, wherein the primary bushing is provided with an arc-shaped slot, and the secondary bushing is of a solid structure; the arc-shaped grooves are symmetrically arranged on the side face of the first-stage bushing, and the inner peripheral surface of the first-stage bushing and the outer peripheral surface of the bonding framework are provided with matched limiting surfaces.