CN217259552U - Connecting structure of suspension bushing and suspension bracket - Google Patents

Abstract

The utility model relates to a connecting structure of a suspension bush and a suspension bracket, which comprises a suspension bracket and a suspension bush matched and connected with the suspension bracket; the suspension bushing is composed of an inner core cylinder, a rubber body and an outer framework, the inner core cylinder, the outer framework and the rubber body form an integral component through vulcanization, and the integral component is connected with the inner wall of the suspension bracket in a matching manner through press mounting; the method is characterized in that: the outer framework is a cylinder, one end of the cylinder is provided with a flanging, the other end of the cylinder is provided with at least four buckling grooves, the upper end of the outer wall of each buckling groove is provided with a wedge-shaped buckle, and the top of the wedge-shaped buckle is lower than the upper end of the cylinder; the inner wall of each clamping groove is flat and smooth. The utility model discloses can provide great axial withdrawal power for suspension axial both sides, avoid suspension bush drunkenness or deviate from the suspension support in the use.

Description

Connecting structure of suspension bushing and suspension bracket

Technical Field

The utility model relates to an automobile power assembly, concretely relates to connection structure of suspension bush and suspension support.

Background

The engine (or motor) suspension is used as a connecting component for connecting the power assembly and the vehicle body, and plays a role in supporting the power assembly, limiting the displacement of the power assembly, reducing the self vibration of the engine and isolating the vibration excitation caused by uneven road surface. The double requirements of light weight of the automobile and riding comfort of people on the automobile put forward higher requirements on light weight and vibration isolation of the suspension. Compared with metal materials, the polymer matrix composite material has the characteristics of low density and high damping, and the development of the suspension is greatly promoted, wherein the glass fiber or carbon fiber reinforced nylon composite material is taken as a main material.

Conventional suspension structure, see fig. 1. The original suspension bushing 20 and the original suspension bracket 10 are assembled into a component by interference fit, wherein the original suspension bushing 20 is composed of an inner core 201, rubber 202 and a bushing framework 203. The bush skeleton is formed by the steel pipe cutting, and the bush skeleton of metal material can provide great bush withdrawal force with suspension support interference fit for a long time, and combined material's such as fibre increase nylon bush skeleton can be along with ageing emergence deformation. The bushing framework is made of materials such as nylon and the like, and although the bushing framework has a plurality of advantages, the conventional mode of the nylon bushing through interference fit cannot provide large axial withdrawing force for a long period, so that the bushing framework has the risk of moving or even dropping out of the suspension bracket in the using process. Accordingly, there is a need for an improved mating connection structure of a suspension bushing and a suspension bracket.

CN214838059U "a suspension bushing", said suspension bushing comprising: an outer tube; the outer pipe sleeve is arranged outside the vibration reduction main spring, and the vibration reduction main spring is provided with a mounting cavity which is a non-rotary body cavity; the inner core is arranged in the installation cavity, and the outer peripheral wall of the inner core and the inner peripheral wall of the installation cavity are designed in a shape following manner; the outer tube and the inner core are made of metal materials, and the vibration reduction main spring is made of rubber materials. This suspension bush adopts the structural style that outer tube, damping main spring and inner core were installed in proper order, does benefit to the vibration isolation that improves the suspension bush, falls the performance of making an uproar, and the structural design of damping main spring and inner core does benefit to and improves holistic product assembly nature of suspension, mistake proofing nature, anticreep nature and durability.

CN113022284A discloses a power assembly suspension bushing, which comprises an inner sleeve, an anti-rotation pin, an outer sleeve, a rubber main spring and a plurality of vibration isolation blocks arranged on the rubber main spring, wherein the inner sleeve and the outer sleeve are coaxially arranged from inside to outside in sequence; the rubber main spring is arranged between the inner sleeve and the outer sleeve, and the inner sleeve and the outer sleeve are connected together by partial vulcanization of the rubber main spring; the inner sleeve is provided with an anti-rotation pin mounting hole; the anti-rotation pin is pressed in the anti-rotation pin mounting hole in an interference fit manner; the vibration isolation blocks are asymmetrically distributed on the rubber main spring, and the shapes of the vibration isolation blocks are different. The anti-rotation device has lower dynamic stiffness in a 600Hz-3000Hz high-frequency range, is suitable for pure electric vehicles, has an anti-rotation function, and is simple in structure, low in cost and easy to produce.

The solutions disclosed in both patent documents are a useful attempt in the field of the technology.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a connection structure of suspension bush and suspension support, it can provide great axial withdrawal power for suspension axial both sides, avoids suspension bush drunkenness or deviating from the suspension support in the use.

The utility model relates to a connecting structure of a suspension bush and a suspension bracket, which comprises a suspension bracket and a suspension bush matched and connected with the suspension bracket; the suspension bushing is composed of an inner core cylinder, a rubber body and an outer framework, the inner core cylinder, the outer framework and the rubber body form an integral component through vulcanization, and the integral component is connected with the inner wall of the suspension bracket in a matching manner through press mounting; the method is characterized in that: the outer framework is a cylinder, one end of the cylinder is provided with a flanging, the other end of the cylinder is provided with at least four buckling grooves, the upper end of the outer wall of each buckling groove is provided with a wedge-shaped buckle, and the top of the wedge-shaped buckle is lower than the upper end of the cylinder; the inner wall of each clamping groove is flat and smooth.

Furthermore, the suspension bracket is provided with an inner wall and an end face, and the inner wall is at least provided with four grooves; the cylinder body of the outer framework is in interference fit with the inner wall of the suspension bracket; the flanging of the outer framework is attached to the end face of the suspension bracket; the wedge-shaped buckles on the outer framework are respectively matched with the grooves on the suspension support in a one-to-one correspondence mode to form a barb structure.

Furthermore, the material of the outer framework is nylon or other polymer-based composite materials.

The utility model discloses an effect:

because the outer wall of the suspension bushing and the inner wall of the suspension bracket form interference fit and provide axial (Y-direction) withdrawing force by friction force, the suspension bushing can be prevented from moving or falling out of the suspension bracket in the use process;

because one end of the suspension bush is provided with the flanging structure, the flanging is matched with the end face of the suspension bracket, so that the + Y-direction withdrawing force of the suspension bush is increased, and the suspension bush is favorably prevented from moving or falling out of the suspension bracket in the using process;

the other end of the suspension bushing is provided with a buckle structure, and the buckle is matched with the clamping groove of the suspension bracket, so that the-Y-direction withdrawing force of the suspension bushing is increased, and the suspension bushing is prevented from moving or falling off from the suspension bracket in the use process.

Drawings

FIG. 1 is a schematic diagram of a conventional suspension structure;

fig. 2 is an exploded schematic view of the present invention;

FIG. 3 is an isometric view of a bushing skeleton;

FIG. 4 is a cross-sectional view of the bushing skeleton;

FIG. 5 is an isometric view of a suspension bracket;

FIG. 6 is a cross-sectional view of a suspension mount;

fig. 7 is a schematic structural diagram of the present invention;

fig. 8 is an enlarged view of a portion C of fig. 7.

In the figure (technical signature):

in the figure:

1-suspension support, 11-inner wall, 12-groove, 13-end surface;

2-suspension lining, 21-inner core cylinder, 22-rubber body;

23-outer framework, 231-flanging, 232-cylinder, 233-wedge-shaped buckle, 234-buckle groove, 235-buckle groove inner wall, 236-top;

10-original suspension bracket;

20-original suspension bushing, 201-inner core, 202-rubber, 203-bushing framework.

Detailed Description

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

Referring to fig. 2 to 8, the connection structure of the suspension bushing and the suspension bracket comprises a suspension bracket 1 and a suspension bushing 2 which is connected with the suspension bracket in a matching way; the suspension bushing 2 consists of an inner core cylinder 21, a rubber body 22 and an outer framework 23; the inner core cylinder 21, the outer framework 23 and the rubber body 22 form an integral component through vulcanization, and the integral component is connected with the inner wall of the suspension bracket 1 in a matching way through press fitting; the method is characterized in that: the outer framework 23 is a cylinder 232, one end of the cylinder 232 is provided with a flange 231, the other end of the cylinder 232 is provided with at least four fastening grooves 234, the upper end of the outer wall of each fastening groove is provided with a wedge-shaped fastener 233, and the top 236 of each wedge-shaped fastener is lower than the upper end of the cylinder 232; when the suspension bushing is pressed into the suspension bracket, the wedge-shaped buckle is extruded by the inner wall of the suspension bracket, the wedge-shaped buckle deforms towards the direction of the buckle groove, and the buckle groove can provide enough space for the deformation of the wedge-shaped buckle; the inner wall 235 of each fastening groove is flat and smooth; on the one hand, the rubber material can flow out of the clamping groove in the vulcanization process of the suspension bushing, the vulcanization process requirement is met, on the other hand, the cutting of rubber by the wedge-shaped buckle or the buckle groove in the movement process is prevented, after the suspension bushing is pressed in place, a large withdrawing force can be provided for the wedge-shaped buckle, and the bottom edge of the wedge-shaped buckle needs to protrude out of the outer wall of the cylinder by 2-4 mm.

The suspension bracket 1 is provided with an inner wall 11 and an end surface 13, and at least four grooves 12 are arranged on the inner wall 11; the cylinder 232 of the outer framework 23 is in interference fit with the inner wall 11 of the suspension bracket 1, and provides axial withdrawal force by static friction force; the flanging 231 of the outer framework 23 is attached to the end face 13 of the suspension bracket 1 to increase the suspension bushing + Y-direction withdrawing force; the wedge-shaped buckles 233 on the outer frame 23 are respectively matched with the grooves 12 on the suspension bracket 1 in a one-to-one correspondence manner to form a barb structure so as to increase the-Y-direction withdrawing force of the suspension bushing.

The Y direction is the axial direction of the bushing.

The outer frame 23 is made of nylon or other polymer matrix composite materials.

The wedge buckle, the buckle groove, the groove structure and the connection mode thereof described above are only embodiments of the present invention, the present invention is not limited to this embodiment, and all the insubstantial arbitrary modifications and improvements made on the basis of the structure of the present application are included in the protection scope of the present application.

Claims (3)

1. A connecting structure of a suspension bushing and a suspension bracket comprises the suspension bracket (1) and the suspension bushing (2) which is connected with the suspension bracket in a matching way; the suspension bushing (2) is composed of an inner core cylinder (21), a rubber body (22) and an outer framework (23), the inner core cylinder (21), the outer framework (23) and the rubber body (22) form an integral component through vulcanization, and the integral component is connected with the inner wall of the suspension bracket (1) in a matched mode through press fitting; the method is characterized in that: the outer framework (23) is a cylinder body (232), one end of the cylinder body (232) is provided with a flanging (231), the other end of the cylinder body is provided with at least four clamping grooves (234), the upper end of the outer wall of each clamping groove is provided with a wedge-shaped clamping buckle (233), and the top (236) of each wedge-shaped clamping buckle is lower than the upper end of the cylinder body (232); the inner wall (235) of each clamping groove is flat and smooth.

2. A connection structure of a suspension bushing and a suspension bracket as claimed in claim 1, wherein: the suspension bracket (1) is provided with an inner wall (11) and an end surface (13), and the inner wall (11) is at least provided with four grooves (12); the cylinder (232) of the outer framework (23) is in interference fit with the inner wall (11) of the suspension bracket (1); the flanging (231) of the outer framework (23) is attached to the end face (13) of the suspension bracket (1); the wedge-shaped buckles (233) on the outer framework (23) are respectively matched with the grooves (12) on the suspension support (1) in a one-to-one correspondence mode to form a barb structure.

3. The connection structure of the suspension bushing and the suspension bracket according to claim 1 or 2, wherein: the outer framework (23) is made of nylon.

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