CN218787274U

CN218787274U - Rubber bushing with lightweight structure

Info

Publication number: CN218787274U
Application number: CN202223286014.3U
Authority: CN
Inventors: 李承亮; 肖磊; 李国洪; 周敏; 陈慧
Original assignee: Dongsen Shiyan Automotive Seals Co ltd
Current assignee: Dongsen Shiyan Automotive Seals Co ltd
Priority date: 2022-12-03
Filing date: 2022-12-03
Publication date: 2023-04-04
Anticipated expiration: 2032-12-03

Abstract

The utility model discloses a rubber bushing with a lightweight structure, which relates to the technical field of automobile parts and comprises an inner pipe, an outer pipe, a rubber body arranged between the inner pipe and the outer pipe and a limit backing plate used for being assembled with a bushing main body, wherein the limit backing plate is connected with the upper end of the inner pipe; the outer side of the outer pipe is provided with a plurality of hollowed-out grooves. The utility model discloses the product wide application and each position of vehicle chassis suspension.

Description

Rubber bushing with lightweight structure

Technical Field

The utility model relates to an automobile parts technical field, specifically rubber bush that possesses lightweight structure that is specifically.

Background

With the expansion of the automobile industry from the concept of 'quartization' to the concept of 'pentaization', the 'lightweight' is purposely extracted for explanation, and the position of the 'lightweight' is emphasized. The lightweight rubber bushing not only can reduce the mass of a vehicle body, save energy, reduce oil consumption and pollution, but also can reduce cost, improve enterprise competitiveness and increase enterprise profit, and meanwhile, the traditional rubber bushing has the defects of large weight, complex process forming, high manufacturing cost and transportation cost and the like, which are increasingly obvious.

SUMMERY OF THE UTILITY MODEL

To the defect that exists among the prior art, the utility model aims to provide a rubber bush that possesses lightweight structure, because lightweight structure has been used in a large number to this product, consequently the application can be more and more extensive in automobile industry's development from now on.

In order to achieve the above purpose, the utility model adopts the technical proposal that: a rubber bushing with a light-weight structure comprises an inner pipe, an outer pipe, a rubber body arranged between the inner pipe and the outer pipe, and a limiting base plate which is used for being assembled with a bushing main body, wherein the limiting base plate is connected with the upper end of the inner pipe; the outer side of the outer pipe is provided with a plurality of hollowed-out grooves.

The further improvement lies in that: the inner tube comprises an inner core and a shell sleeved outside the inner core, and a first concave-convex surface is arranged on the outer side wall of the inner core.

The further improvement is that: the inner core is made of an aluminum alloy material, and the shell and the outer pipe are formed by injection molding of engineering plastics.

The further improvement is that: the middle part of the inner core is provided with a through hole, and the top surface of the inner core is provided with a clamping groove; the middle part of the limiting base plate is provided with a central hole opposite to the through hole, and the bottom of the limiting base plate is provided with a buckle matched with the clamping groove.

The further improvement lies in that: the edge of the limiting base plate is provided with a flange, and the edges of two sides of the limiting base plate are inwards sunken to form a notch.

The further improvement lies in that: the upper end of the outer tube is provided with two round tables, and the round tables and the notches are arranged in a staggered mode.

The further improvement lies in that: the lateral wall of casing is provided with spacing face, the inside wall of outer tube is provided with the spacing portion with spacing face looks adaptation.

The further improvement lies in that: the limiting surface is a concave surface, and the limiting part is a convex surface; or the limiting surface is a convex surface, the limiting part is a boss, and a concave surface is arranged on the boss.

The further improvement lies in that: the upper end and the lower end of the shell are respectively provided with a limiting step, and the outer tube is provided with an inverted buckle structure matched with the limiting steps.

The further improvement is that: and a second concave-convex surface is arranged on the inner side wall of the outer pipe.

The beneficial effects of the utility model reside in that:

1. the utility model has light weight, and the weight is reduced by more than 50 percent compared with a traditional bush;

2. the product of the utility model has simple process molding; various required complex shapes can be directly manufactured by using an injection molding process;

3. the utility model has low product cost, and the process forming and logistics cost can be reduced;

4. the utility model discloses the product process is simple, can cancel undergauge process etc. after vulcanizing.

Drawings

Fig. 1 is a perspective view of a rubber bushing having a lightweight structure according to a first embodiment of the present invention;

fig. 2 is a plan view of a rubber bushing having a lightweight structure according to a first embodiment of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a sectional view taken along line B-B of FIG. 2;

fig. 5 is a perspective view of an inner tube according to a first embodiment of the present invention;

fig. 6 is a perspective view of an inner core in an embodiment of the present invention;

FIG. 7 is a top view of an inner tube according to an embodiment of the present invention;

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 7;

FIG. 9 is a cross-sectional view taken along line D-D of FIG. 7;

fig. 10 is a perspective view of a middle outer tube according to an embodiment of the present invention;

fig. 11 is a perspective view of a first limiting cushion plate according to an embodiment of the present invention;

fig. 12 is a cross-sectional view of a first stop pad according to an embodiment of the present invention;

fig. 13 is a perspective view of a middle and outer tube according to a second embodiment of the present invention.

Reference numerals:

1-inner tube; 11-an inner core; 111-through holes; 112-card slot; 113-a first concave-convex surface; 12-a housing; 121-a limiting surface; 122-a limit step;

2-an outer tube; 21-hollowing out the groove; 22-a limiting part; 23-a second concave-convex surface; 24-a circular truncated cone;

3-a rubber body;

4-limiting the base plate; 41-a central hole; 42-buckling; 43-a flange; 44-notches.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and "a plurality" or "a plurality" in the description of the invention means two or more unless a specific definition is explicitly provided.

The technical solution and the advantages of the present invention will be more clear and clear by further describing the embodiments of the present invention with reference to the drawings of the specification. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.

Example one

Referring to fig. 1 to 4, an embodiment of the present invention provides a rubber bushing with a lightweight structure, including an inner tube 1, an outer tube 2, a rubber body 3 disposed between the inner tube 1 and the outer tube 2, and a limiting cushion plate 4 for assembling with a bushing main body, where the limiting cushion plate 4 is connected to an upper end of the inner tube 1; the outer side surface of the outer tube 2 is provided with a plurality of hollowed-out grooves 21.

Referring to fig. 5 to 9, the inner tube 1 includes an inner core 11 and a shell 12 covering the inner core 11, and a first concave-convex surface 113 (a groove or a rib) is disposed on an outer side wall of the inner core 11. The middle part of the inner core 11 is provided with a through hole 111, and the top surface of the inner core 11 is provided with a clamping groove 112; the middle part of the limit base plate 4 is provided with a central hole 41 corresponding to the through hole 111, and the bottom of the limit base plate 4 is provided with a buckle 42 matched with the clamping groove 112. In this embodiment, the inner core 11 is made of an aluminum alloy material, and the shell 12 and the outer tube 2 are injection molded from engineering plastics.

Referring to fig. 10 to 12, the edge of the restraining pad 4 is provided with a rib 43, and the edges of the two sides of the restraining pad 4 are recessed inwards to form a notch 44.

Referring to fig. 10, two truncated cones 24 are arranged at the upper end of the outer tube 2, and the truncated cones 24 are staggered with the notches 44. The inner side wall of the outer tube 2 is provided with a second concave-convex surface 23 (groove or convex rib).

Referring to fig. 8, the outer side wall of the housing 12 is provided with a limiting surface 121, and the inner side wall of the outer tube 2 is provided with a limiting portion 22 adapted to the limiting surface 121. In this embodiment, the limiting surface 121 is a concave surface, and the limiting portion 22 is a convex surface; specifically, the upper end and the lower end of the casing 12 are respectively provided with a limiting step 122, and the outer tube 2 is provided with an inverted structure matched with the limiting step 122.

Example two

Referring to fig. 13, the structure of the present embodiment is substantially the same as that of the first embodiment, except that: in this embodiment, the limiting surface 121 is a convex surface, and the limiting portion 22 is a convex surface, and the convex surface is provided with a concave surface. The inner side wall of the outer tube 2 is a plane.

The utility model adopts the injection molding of engineering plastics, which greatly reduces the weight of the bushing compared with the traditional bushing; the maximum outline size of the outer wall of the outer pipe is the effective assembly size of the bushing product; the end part of the outer pipe is provided with a circular truncated cone for axial limiting of the bush; the outer wall of the outer pipe is provided with hollow grooves in various shapes, so that the material consumption is reduced, and the cost and the product weight are reduced; the inner part of the outer pipe is provided with a plurality of grooves or convex ribs which can enhance the bonding strength between the rubber and the outer pipe; meanwhile, the use amount of engineering plastics can be reduced, and the cost is reduced; (5) the inner part of the outer pipe can be provided with inward convex surfaces or concave surfaces at different parts according to the rigidity requirement of a product, so that the rigidity of each direction of the bushing is improved; (6) the lower port part of the outer pipe is designed into a round angle or an oblique angle, so that the assembly of the bushing is facilitated; (7) the lower port part of the outer pipe is designed with a back-off structure which can prevent the bush from falling off after being assembled;

the inner pipe is made of aluminum alloy section or high-pressure cast aluminum alloy, and can also be formed by injection molding of an aluminum alloy inner core and engineering plastics, so that the weight of the inner core is greatly reduced compared with the traditional lining inner core; (1) the inner pipe of the bushing can be designed into an inner core of an aluminum alloy section and injection-molded engineering plastics, so that the requirement of light weight can be met; (2) the outer side of the inner pipe can be designed into groove or boss structures with various shapes according to the rigidity requirement of a product; meanwhile, the adhesive strength between the rubber and the inner pipe is enhanced; (3) the outer side of the inner pipe can also be designed into a groove with a structure similar to that of the outer wall of the outer pipe, so that the material cost is reduced; (4) the inner core of the inner pipe can be formed by using an aluminum alloy section, and the outer wall of the inner pipe can be designed with various grooves or ribs to enhance the bonding strength between the inner core and the injection-molded engineering plastic; (5) the inner wall of the inner pipe of the bushing is provided with a structure assembled with the limiting gasket; (6) the inner pipe of the bushing can also be a straight pipe directly without injection molding engineering plastics; (7) the inner pipe of the bushing can also be directly cast into an integral structure by aluminum alloy, the function is the same as that of aluminum alloy section bar and injection molding engineering plastics, but the molding process is simpler.

The utility model discloses the product can be by extensive practicality by each position on vehicle chassis suspension, if can be used to many connecting rod bush, knuckle bush, control arm bush, sub vehicle frame bush etc..

In the description of the specification, reference to the description of "one embodiment," "preferably," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention, and schematic representations of the terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

With the above structure and principle in mind, those skilled in the art should understand that the present invention is not limited to the above embodiments, and all modifications and substitutions based on the present invention and adopting the known technology in the art are within the scope of the present invention, which should be limited by the claims.

Claims

1. The utility model provides a rubber bush that possesses lightweight structure, includes inner tube (1), outer tube (2) and sets up rubber body (3) between inner tube (1) and outer tube (2), its characterized in that: the bushing is characterized by also comprising a limiting base plate (4) assembled with the bushing main body, wherein the limiting base plate (4) is connected with the upper end of the inner pipe (1); the outer side surface of the outer pipe (2) is provided with a plurality of hollowed-out grooves (21).

2. The rubber bushing with a lightweight structure according to claim 1, wherein: the inner tube (1) comprises an inner core (11) and a shell (12) sleeved outside the inner core (11), and a first concave-convex surface (113) is arranged on the outer side wall of the inner core (11).

3. The rubber bushing with a lightweight structure according to claim 2, wherein: the inner core (11) is made of an aluminum alloy material, and the shell (12) and the outer pipe (2) are formed by injection molding of engineering plastics.

4. The rubber bushing with a lightweight structure according to claim 2, wherein: a through hole (111) is formed in the middle of the inner core (11), and a clamping groove (112) is formed in the top surface of the inner core (11); the middle part of the limiting base plate (4) is provided with a central hole (41) opposite to the through hole (111), and the bottom of the limiting base plate (4) is provided with a buckle (42) matched with the clamping groove (112).

5. The rubber bushing with a lightweight structure according to claim 4, wherein: the edge of the limiting cushion plate (4) is provided with a flange (43), and the edges of two sides of the limiting cushion plate (4) are inwards sunken to form a notch (44).

6. The rubber bushing with a lightweight structure according to claim 5, wherein: the upper end of the outer tube (2) is provided with two round tables (24), and the round tables (24) and the notches (44) are arranged in a staggered mode.

7. The rubber bushing with a lightweight structure according to claim 2, wherein: the outer side wall of the shell (12) is provided with a limiting surface (121), and the inner side wall of the outer tube (2) is provided with a limiting part (22) matched with the limiting surface (121).

8. The rubber bushing with a light-weight structure according to claim 7, wherein: the limiting surface (121) is a concave surface, and the limiting part (22) is a convex surface; or the limiting surface (121) is a convex surface, the limiting part (22) is a boss, and a concave surface is arranged on the boss.

9. The rubber bushing with a lightweight structure according to claim 2, wherein: the upper end and the lower end of the shell (12) are respectively provided with a limiting step (122), and the outer tube (2) is provided with an inverted buckle structure matched with the limiting step (122).

10. The rubber bushing with a lightweight structure according to claim 1, wherein: and a second concave-convex surface (23) is arranged on the inner side wall of the outer pipe (2).