CN202641286U

CN202641286U - Lining for automobile

Info

Publication number: CN202641286U
Application number: CN 201220275779
Authority: CN
Inventors: 崔东宇
Original assignee: Ningbo Tuopu Group Co Ltd
Current assignee: Ningbo Tuopu Group Co Ltd
Priority date: 2012-06-11
Filing date: 2012-06-11
Publication date: 2013-01-02
Anticipated expiration: 2022-06-11

Abstract

The utility model discloses a lining for an automobile. The lining for the automobile comprises a first limiting connecting shaft, a second limiting connecting shaft, an inner pipe, a rubber body and an outer pipe, wherein the inner pipe, the rubber body and the outer pipe which are integral in a vulcanization way; the first limiting connecting shaft and the second limiting connecting shaft are oppositely and axially arranged so as to form an axial limiting cavity; the inner pipe is sheathed outside the inner shaft ends of the first limiting connecting shaft and a second limiting connecting shaft; the inner pipe is in interference fit with the axial limiting cavity; two outwards-protruded inner frameworks are symmetrically connected on the upper edge of the inner pipe in the circumference direction; two inwards-protruded bosses are symmetrically formed on the upper edge of the outer pipe in the circumference direction and inwards concave in the radial direction; the positions of the outwards-protruded inner frameworks and the positions of the inwards-protruded bosses are staggered in the axial direction; and a gap used for the outer pipe to shift in the axial direction is reserved between one end, close to the first limiting connecting shaft, of the outer pipe and the first limiting connecting shaft. The lining has the advantages that the axial rigidity of the lining with the structure is improved greatly, the high axial rigidity requirement can be met, the axial shift distance of the outer pipe is effectively limited due to the arrangement of the gap, and the linear section requirement of the axial rigidity can be met due to the width of the gap.

Description

A kind of automobile bushing

Technical field

The utility model relates to a kind of automobile attaching parts, especially relates to a kind of automobile bushing.

Background technology

At present, the common lining that is contained in towing arm or the Control arm mainly comprises inner and outer tubes, and sulfuration has rubber bodies between the inner and outer tubes, and the two axial ends of inner tube is connected with fixed plate, and lining is captiveed joint with vehicle body by fixed plate.But the axial stiffness ratio of this lining is little, can not satisfy high axial stiffness requirement.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of simple in structure, and automobile bushing that can the Effective Raise axial stiffness.

The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of automobile bushing, it is characterized in that comprising the first spacing adapter shaft, the second spacing adapter shaft and sulfuration all-in-one-piece inner tube, rubber bodies and outer tube, the described first spacing adapter shaft and the described second spacing adapter shaft axially are oppositely arranged and are formed with the axial limiting chamber, described inner tube is socketed on outside the interior axle head of the interior axle head of described the first spacing adapter shaft and described the second spacing adapter shaft, described inner tube and described axial limiting chamber interference fit, the edge circumferentially is symmetrically connected with two external convex type inner frames on the outer tube wall of described inner tube, circumferential symmetrical footpath, described outer tube edge inwards spill becomes to have two inwardly projecting type boss, stagger in described external convex type inner frame and described inwardly projecting type boss position on axis direction, described external convex type inner frame and described inwardly projecting type boss vulcanize in described rubber bodies, leave the gap for described outer tube longitudinal travel between an end of close described the first spacing adapter shaft of described outer tube and the described first spacing adapter shaft.

The described first spacing adapter shaft is along circumferentially being provided be used to limiting the spacing long-armed of described outer tube longitudinal travel, the described second spacing adapter shaft is along circumferentially being provided with spacing galianconism, and the described first spacing adapter shaft and the described second spacing adapter shaft axially are oppositely arranged the space that makes between the described spacing long-armed and described spacing galianconism and form described axial limiting chamber.

Distance between described external convex type inner frame and the described inwardly projecting type boss satisfies the axial stiffness requirement, and the surface that described external convex type inner frame is relative with described inwardly projecting type boss is arc surface or inclined-plane.

The line of centres of two described external convex type inner frames parallels with the line of centres of two described inwardly projecting type boss.

Described outer tube has been wholely set annular flanging near described spacing long-armed ora terminalis, the end that described outer tube is provided with described annular flanging radially is coated with one deck and described rubber bodies sulfuration all-in-one-piece yielding rubber layer, described yielding rubber layer is positioned at described gap, and described yielding rubber layer and described spacing distance between long-armed are the axial linear distance.

Compared with prior art, the utility model has the advantage of: by inner tube being limited between two spacing adapter shafts, and circumferentially symmetrically in the inner tube outer connect two external convex type inner frames, on outer tube along circumferential symmetrical footpath inwards spill become two inwardly projecting type boss, and the axial location of external convex type inner frame and inwardly projecting type boss is staggered, so that the axial stiffness of this lining is greatly improved, can satisfy high axial stiffness requirement, can be widely used in towing arm or the Control arm etc.; By between outer tube is near an end of the first spacing adapter shaft and the first spacing adapter shaft, leaving the gap, effectively limited the distance of axial displacement of outer tube, the width in this gap satisfies the linearity range requirement of axial stiffness.Radially coat one deck and rubber bodies sulfuration all-in-one-piece yielding rubber layer by an end that is provided with annular flanging at outer tube, effectively reduced the noise that produces when outer tube is run into the first spacing adapter shaft spacing long-armed.

Description of drawings

Fig. 1 is the perspective view of automobile bushing of the present utility model;

Fig. 2 is the front elevation of automobile bushing of the present utility model;

Fig. 3 is that A-A among Fig. 2 is to cross-sectional schematic;

Fig. 4 is the right elevation of Fig. 2;

Fig. 5 is the cross-sectional schematic of automobile bushing of the present utility model (having removed the first spacing adapter shaft and the second spacing adapter shaft);

Fig. 6 is inner tube in the automobile bushing of the present utility model and the connection diagram of external convex type inner frame;

Fig. 7 is the structural representation of the outer tube in the automobile bushing of the present utility model;

Fig. 8 is the cross-sectional schematic of the outer tube in the automobile bushing of the present utility model.

The specific embodiment

Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.

A kind of automobile bushing that the utility model proposes, as shown in the figure, it comprises the first spacing adapter shaft 1, the second spacing adapter shaft 2 and sulfuration all-in-one-piece inner tube 3, rubber bodies 4 and outer tube 5, the first spacing adapter shaft 1 is along circumferentially being provided with spacing long-armed 11, the second spacing adapter shaft 2 is along circumferentially being provided with spacing galianconism 21, the first spacing adapter shaft 1 and the second spacing adapter shaft 2 axially be oppositely arranged make spacing long-armed 11 and spacing galianconism 21 between the space form an axial limiting chamber 6, spacing long-armed 11 are used for the longitudinal travel of restriction outer tube 5 simultaneously, inner tube 3 is socketed on outside the interior axle head 22 of the interior axle head 12 of the first spacing adapter shaft 1 and the second spacing adapter shaft 2, inner tube 3 and axial limiting chamber 6 interference fit, the edge circumferentially is symmetrically connected with two external convex type inner frames 7 with welding manner on the inner tube 3, on the outer tube 5 along circumferential symmetrical footpath inwards spill become to have two inwardly projecting type boss 51, stagger in external convex type inner frame 7 and inwardly projecting type boss 51 position on axis direction, external convex type inner frame 7 and inwardly projecting type boss 51 vulcanize in rubber bodies 4, outer tube 5 near an end of spacing long-armed 11 of the first spacing adapter shafts 1 and the first spacing adapter shaft 1 spacing long-armed 11 between leave gap 8 for outer tube 5 longitudinal travels, the distance of axial displacement of outer tube 5 has effectively been limited in this gap 8, and the width in this gap 8 satisfies the linearity range requirement of axial stiffness.At this, the axially outer end 13 of the first spacing adapter shaft 1 be connected the axially outer end 23 of spacing adapter shaft 2 and be connected with vehicle body by fastener such as bolt etc.

In this specific embodiment, outer tube 5 has been wholely set annular flanging 52 near spacing long-armed 11 ora terminalis, the end that outer tube 5 is provided with annular flanging 52 radially is coated with one deck and rubber bodies 4 sulfuration all-in-one-piece yielding rubber layers 9, yielding rubber layer 9 is positioned at gap 8, distance between the yielding rubber layer 9 and spacing long-armed 11 is the axial linear distance of spacing long-armed 11 directions, when the move distance of outer tube 5 to surpass distance between the yielding rubber layer 9 and spacing long-armed 11 be axial linear apart from the time, can make the axial stiffness sudden change, become very large, become by rubber rigidity and bump iron rigidity near iron.At this, yielding rubber layer 9 effective noise that spacing long-armed 11 o'clock produces that outer tube 5 is run into the first spacing adapter shaft 1 that reduced is set.

In this specific embodiment, position relationship between external convex type inner frame 7 and the inwardly projecting type boss 51 can be restricted to: the distance between external convex type inner frame 7 and the inwardly projecting type boss 51 on axis direction is that external convex type inner frame 7 satisfies the axial stiffness requirement with the distance that inwardly projecting type boss 51 staggers, namely can require to design the distance that staggers between the two according to axial stiffness in actual design process, the line of centres of two external convex type inner frames 7 parallels with the line of centres of two inwardly projecting type boss 51; And can be arc surface or inclined-plane with external convex type inner frame 7 and inwardly projecting type boss 51 relative surface design.

At this, outer tube 5 adopts nylon to make.

Claims

1. automobile bushing, it is characterized in that comprising the first spacing adapter shaft, the second spacing adapter shaft and sulfuration all-in-one-piece inner tube, rubber bodies and outer tube, the described first spacing adapter shaft and the described second spacing adapter shaft axially are oppositely arranged and are formed with the axial limiting chamber, described inner tube is socketed on outside the interior axle head of the interior axle head of described the first spacing adapter shaft and described the second spacing adapter shaft, described inner tube and described axial limiting chamber interference fit, the edge circumferentially is symmetrically connected with two external convex type inner frames on the outer tube wall of described inner tube, circumferential symmetrical footpath, described outer tube edge inwards spill becomes to have two inwardly projecting type boss, stagger in described external convex type inner frame and described inwardly projecting type boss position on axis direction, described external convex type inner frame and described inwardly projecting type boss vulcanize in described rubber bodies, leave the gap for described outer tube longitudinal travel between an end of close described the first spacing adapter shaft of described outer tube and the described first spacing adapter shaft.

2. a kind of automobile bushing according to claim 1, it is characterized in that the described first spacing adapter shaft is along circumferentially being provided be used to limiting the spacing long-armed of described outer tube longitudinal travel, the described second spacing adapter shaft is along circumferentially being provided with spacing galianconism, and the described first spacing adapter shaft and the described second spacing adapter shaft axially are oppositely arranged the space that makes between the described spacing long-armed and described spacing galianconism and form described axial limiting chamber.

3. a kind of automobile bushing according to claim 1 and 2, it is characterized in that the distance between described external convex type inner frame and the described inwardly projecting type boss satisfies the axial stiffness requirement, the surface that described external convex type inner frame is relative with described inwardly projecting type boss is arc surface or inclined-plane.

4. a kind of automobile bushing according to claim 3 is characterized in that the line of centres of two described external convex type inner frames parallels with the line of centres of two described inwardly projecting type boss.

5. a kind of automobile bushing according to claim 2, it is characterized in that described outer tube has been wholely set annular flanging near described spacing long-armed ora terminalis, the end that described outer tube is provided with described annular flanging radially is coated with one deck and described rubber bodies sulfuration all-in-one-piece yielding rubber layer, described yielding rubber layer is positioned at described gap, and described yielding rubber layer and described spacing distance between long-armed are the axial linear distance.