CN214189788U

CN214189788U - Bushing inner sleeve, bushing, steering knuckle and vehicle

Info

Publication number: CN214189788U
Application number: CN202022990492.7U
Authority: CN
Inventors: 程峰; 张兵舰; 陈雨峰; 陈安心; 赵鑫; 吴冬
Original assignee: Evergrande New Energy Automobile Investment Holding Group Co Ltd
Current assignee: Evergrande New Energy Automobile Investment Holding Group Co Ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-09-14
Anticipated expiration: 2030-12-10

Abstract

The utility model relates to an automobile parts produces the manufacturing field, discloses a sleeve pipe, bush, knuckle and vehicle in bush, and this sleeve pipe is including the inner casing body in the bush, the inner casing body includes knuckle installation department (1) and installation pipeline section (2) of arranging along the axial direction of the inner casing body, wherein, knuckle installation department (1) is used for cooperating with the pilot hole of knuckle, knuckle installation department (1) radial outside protrusion is and including annular evagination awl cambered surface (101), annular evagination awl cambered surface (101) are used for forming the cooperation of awl cambered surface with the annular indent awl cambered surface of pilot hole, installation pipeline section (2) are used for suit lining member (3). The utility model discloses a solved because the knuckle has the anomalous condition of structure, conventional lug bush is connected the laminating degree with the knuckle and is limited, only is connected through the butt joint face contact of cylindric port and knuckle, leads to causing the technical problem of knuckle fitting surface conquassation easily.

Description

Bushing inner sleeve, bushing, steering knuckle and vehicle

Technical Field

The utility model relates to an automobile parts produces the manufacturing field, specifically relates to sleeve pipe, bush, knuckle and vehicle in bush.

Background

The vibration damper lifting lug bushing is a vibration damping and noise reducing elastomer, and is generally integrally vulcanized by rubber or polyurethane and a metal inner framework. The shock absorber is mainly connected with the shock absorber and a steering knuckle (or a control arm), and in the working process, the shock absorber transmits the impact force from a wheel to a vehicle body and simultaneously attenuates the vibration. Conventional lug bush is hollow cylindric structure, and the in-process of being connected with the knuckle, because the knuckle has the anomalous condition of structure, conventional lug bush is connected the laminating degree with the knuckle and is limited, only contacts through the butt joint face contact connection of cylindric port and knuckle, leads to causing the technical problem of knuckle fitting surface conquassation easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the anomalous condition in structure because the knuckle exists in prior art, conventional lug bush is connected the laminating degree with the knuckle and is limited, only is connected through the butt joint face contact of cylindric port and knuckle, leads to causing the technical problem of knuckle fitting surface conquassation easily.

In order to achieve the above object, an aspect of the present invention provides an inner sleeve of a bushing;

this sleeve pipe in bush, including the inner casing body, the inner casing body includes knuckle installation department and installation pipeline section of arranging along the axial direction of the inner casing body, wherein, the knuckle installation department be used for with the pilot hole cooperation of knuckle, the radial outside protrusion of knuckle installation department is and including annular evagination awl cambered surface, annular evagination awl cambered surface is used for forming the cooperation of awl cambered surface with the annular indent awl cambered surface of pilot hole, the installation pipeline section is used for suit lining piece.

The utility model provides an interior sleeve pipe of bush is used for forming awl cambered surface complex knuckle installation department with the annular indent awl cambered surface of the pilot hole of knuckle through setting up, sleeve pipe and steering spindle laminating setting have been reached in the bush, it is not hard up to connect in the operation process in order to realize preventing, the knuckle is connected the technological effect of face conquassation, solved because the knuckle has the anomalous condition of structure, conventional lug bush is connected the laminating degree with the knuckle and is limited, only be connected through the butt joint face contact of cylindric port and knuckle, lead to causing the technical problem of knuckle fitting surface conquassation easily.

Preferably, the knuckle mounting part comprises a straight pipe section located at the small-size end of the annular outer convex cone cambered surface, and the straight pipe section is used for being matched with the straight hole section of the assembling hole.

Preferably, the wall thickness of the flat tube section is smaller than the wall thickness of the mounting tube section.

Preferably, the radial side surface of the annular outer convex cone cambered surface and/or the straight pipe section is provided with a positioning datum surface.

Preferably, the bushing inner sleeve comprises two positioning reference surfaces which are circumferentially and symmetrically arranged on the annular outer convex cone cambered surface and/or the straight pipe section.

Preferably, a buffer boss is arranged at the part, which is externally arranged, of the lining member after the pipe section is installed on the lining member.

A second aspect of the present invention provides a bushing;

the bushing comprises a bushing member and the bushing inner sleeve of any one of the above, wherein the bushing member is sleeved on the installation pipe section.

Preferably, the bushing member and the mounting tube segment are vulcanized as a single piece.

A third aspect of the present invention provides a knuckle;

the steering knuckle comprises a mounting hole for mounting a steering knuckle mounting part of any one of the bushings, wherein the mounting hole comprises an annular concave-conical cambered surface matched with the annular convex-conical cambered surface of any one of the bushings.

A fourth aspect of the present invention provides a vehicle;

the vehicle comprises a shock absorber lifting lug, a steering knuckle and any one of the bushings, wherein the annular outer convex cone cambered surface of the bushing is in conical cambered surface fit with the annular inner concave cone cambered surface of the assembly hole of the steering knuckle.

Drawings

Fig. 1 is a schematic perspective view of the bushing and the bushing according to the present invention;

FIG. 2 is a schematic side view of the structure of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the attachment of the shock absorber lug of FIG. 1;

FIG. 4 is a schematic view of a knuckle construction;

fig. 5 is a schematic view of the mounting structure of fig. 4.

Description of the reference numerals

1. A knuckle mounting portion; 101. an annular outer convex cone cambered surface; 102. a flat pipe section; 103. positioning a reference surface; 2. installing a pipe section; 201. buffering the boss; 3. a bushing member; 4. an annular concave cone cambered surface.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

In the present invention, the terms "upper", "inner", "outer" and "middle" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Detailed description of the preferred embodiment

As shown in fig. 1 to 3, the utility model provides a bush inner tube cover, including the inner tube cover body, the inner tube cover body includes knuckle installation department 1 and installation pipeline section 2 of arranging along the axial direction of the inner tube cover body, wherein knuckle installation department 1 be used for with the pilot hole cooperation of knuckle, knuckle installation department 1 radially outwards protrudes and including annular outer convex cone cambered surface 101, annular outer convex cone cambered surface 101 is used for forming the cooperation of awl cambered surface with the annular inner concave cone cambered surface of pilot hole, installation pipeline section 2 is used for suit lining external member 3.

According to the design of the annular outer convex cone cambered surface 101 of the mounting part 1, firstly, the matching area of the inner pipe sleeve of the bushing and the steering knuckle is increased, so that the compressive stress of the joint surface of the steering knuckle in contact with the inner pipe sleeve of the bushing is reduced, and the risk of crushing the joint surface of the steering knuckle in operation is reduced; secondly, the matching area of the inner pipe sleeve of the bushing and the steering knuckle is increased, the friction surface between the steering knuckle and the inner pipe sleeve of the bushing in the operation process is increased, and the risk of torque decline in the torque transmission process can be effectively reduced; finally, the arc surface of the annular convex cone arc surface 101 can play a role in assembly guiding in the installation process.

Detailed description of the invention

The utility model discloses in the optional embodiment, this bush inner tube cover includes the inner tube cover body, and the inner tube cover body includes knuckle installation department 1 and installation pipeline section 2 of arranging along the axial direction of the inner tube cover body, wherein knuckle installation department 1 be used for with the pilot hole cooperation of knuckle, knuckle installation department 1 radial outside protrusion and including annular evagination awl cambered surface 101, annular evagination awl cambered surface 101 be used for with the annular indent awl cambered surface formation awl cambered surface cooperation of pilot hole, installation pipeline section 2 is used for suit lining external member 3.

The knuckle mounting part 1 includes a straight pipe section 102 at a small-sized end of the annular outer tapered arc surface 101, the straight pipe section 102 being for fitting with a straight hole section of a fitting hole. The straight pipe section 102 is sleeved in the assembling hole and attached to the inner wall of the assembling hole, when a fastening piece penetrates through the steering knuckle mounting portion 1 and is fixed at one end of the steering knuckle, the straight pipe section 102 can prevent the fastening piece from being in direct contact with the steering knuckle, and therefore damage to the edge structure of the steering knuckle due to stress concentration is avoided.

In an alternative embodiment of the invention, the wall thickness of the flat pipe section 102 is smaller than the wall thickness of the installation pipe section 2. The straight pipe sections 102 are mainly used for being connected at intervals, so that the wall thickness of the straight pipe sections 102 is smaller than that of the installation pipe section 2 which needs to bear pressure or transmit torque, on one hand, the work and materials are saved, on the other hand, in the installation process, the thin-walled straight pipe sections 102 are more beneficial to transmitting torque of a steering knuckle and a lining through a fastening piece, and the loss of the torque is avoided.

When sleeve pipe and bush and bumper shock absorber lug assemble in the bush, the material of sleeve pipe and bush spare and the atress condition of each part in the bush are considered, need advance line location installation, for the installation of convenience, sleeve pipe is equipped with the locating hole that is used for the location assembly in the structure hole internal diameter that is used for installing the fastener in the conventional bush. In an alternative embodiment of the present invention, the radial sides of the annular outer cone arc surface 101 and/or the flat pipe segment 102 are provided with positioning reference surfaces 103. Further optionally, the bushing inner sleeve comprises two positioning reference surfaces 103, and the positioning reference surfaces 103 are circumferentially symmetrically arranged on the annular convex conical cambered surface 101 and/or the flat pipe segment 102. The setting of location datum plane 103 is in the outside of structural mounting, conveniently carries out counterpoint and observation. In other optional embodiments of the present invention, the inner wall of the bushing inner sleeve, which is provided with the structural hole or the attachment structural hole in the inner diameter of the structural hole for mounting the fastener, is provided with an alignment reference surface.

Detailed description of the preferred embodiment

The external part of the pipe section 2 sleeved with the bushing member 3 is provided with a buffer boss 201 after the bushing member 3 is installed. The buffer boss 201 can obstruct the fastener arranged in the bushing inner sleeve from directly connecting with the installation pipe section 2 and the bushing element 3, and prevent the edge from crushing and damaging due to direct contact connection with the fastener between the installation pipe section 2 and the bushing element 3 in operation.

Detailed description of the invention

Meanwhile, a buffer boss 201 is arranged at the external part of the lining member 3 after the pipe section 2 is installed and the lining member 3 is sleeved. The buffer boss 201 can obstruct the fastener arranged in the bushing inner sleeve from directly connecting with the installation pipe section 2 and the bushing element 3, and prevent the edge from crushing and damaging due to direct contact connection with the fastener between the installation pipe section 2 and the bushing element 3 in operation.

The utility model provides a bushing;

as shown in fig. 1 to 3, the bushing comprises a bushing member 3 and an inner bushing sleeve of any of the above-mentioned bushings, wherein the bushing member 3 is arranged on the installation pipe section 2 in a sleeved manner. In an alternative embodiment of the present invention, the bushing member 3 and the mounting tube section 2 are vulcanized as a single piece, facilitating the positioning of the bushing. In alternative embodiments of the present invention, the bushing member 3 and the installation pipe section 2 are provided as separate structures, i.e. the bushing member 3 and the bushing inner sleeve are provided as separate structures, so as to facilitate the replacement of the bushing member 3 or the bushing inner sleeve alone. The length of the bushing member 3 is smaller than the length of the installation pipe section 2.

In the utility model discloses optional embodiment, bush spare 3 is the annular cylinder, include the inner wall of being connected with bushing inner sleeve contact and the outer wall of being connected with the contact of bumper shock absorber lug, be equipped with the elastic component that compressive property is good in the annular chamber that holds between the inner wall outer wall, this elastic component is preferably for having spaced multilayer structure to ensure that bush spare 3 wholly possesses good compressive property and elastic property.

The utility model provides a steering knuckle;

as shown in fig. 1 to 5, the knuckle is used for a mounting hole of a knuckle mounting part 1 of any one of the bushings described above, wherein the mounting hole includes an annular concave-convex conical arc surface 4 for mating with an annular convex-convex conical arc surface 101 of any one of the bushings described above. The annular inner concave cone arc surface 4 and the annular outer convex cone arc surface 101 of the bushing are matched with each other, so that the matching area of the bushing and the knuckle is increased, the pressure stress of the joint surface of the knuckle, which is in contact with the bushing, is reduced, and the risk of crushing the joint surface of the knuckle in operation is reduced; meanwhile, the matching area of the bush and the steering knuckle is increased, the friction surface of the steering knuckle and the bush in the operation process is increased, and the risk of torque decline in the torque transmission process can be effectively reduced.

The utility model also provides a vehicle;

the vehicle comprises a shock absorber lifting lug, a steering knuckle, a fastener and any one of the bushings, wherein the bushing is connected with the steering knuckle through the fastener, and the annular convex cone cambered surface 101 of the bushing is in conical cambered surface fit with the annular concave cone cambered surface 4 of the assembly hole of the steering knuckle. In an alternative embodiment of the present invention, the knuckle is the knuckle in the above-described embodiment.

In an alternative embodiment of the present invention, the one end knuckle mounting portion of the bushing is connected to the knuckle, the other end of the bushing is sleeved in the lug of the shock absorber through a bushing member, and the fastener penetrates the inner sleeve of the bushing from one end of the bushing and fixedly connects the inner sleeve of the bushing and the knuckle. The fastening piece is arranged at intervals with the steering knuckle through the straight pipe section of the steering mounting part of the bushing, the straight mounting section is sleeved in the assembling hole of the steering knuckle, the situation that the fastening piece is in direct contact with the steering knuckle to cause the bearing damage of the edge of the steering knuckle is avoided, and the straight mounting section is arranged between the steering knuckle and the fastening piece, so that the tightness of the whole equipment is improved, and the transmission of torque is facilitated; further, the fastener may be a fastening bolt.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical scheme of the utility model in the technical conception scope, can be right carry out multiple simple variant. Including individual features, can be combined in any suitable manner. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims

1. The utility model provides an interior sleeve pipe of bush, its characterized in that, includes the interior sleeve pipe body, the interior sleeve pipe body includes knuckle installation department (1) and installation pipeline section (2) that arrange along the axial direction of the interior sleeve pipe body, wherein, knuckle installation department (1) is used for cooperating with the pilot hole of knuckle, knuckle installation department (1) radial outside protrusion and including annular outer convex cone cambered surface (101), annular outer convex cone cambered surface (101) are used for forming the cooperation of awl cambered surface with the annular indent awl cambered surface of pilot hole, installation pipeline section (2) are used for suit lining member (3).

2. The bushing inner sleeve according to claim 1, characterized in that the knuckle mount (1) comprises a straight tube section (102) at the small-sized end of the annular outer convexly tapered curved surface (101), the straight tube section (102) being adapted to mate with a straight bore section of a fitting hole.

3. The bushing inner sleeve according to claim 2, characterized in that the wall thickness of the straight tube section (102) is smaller than the wall thickness of the mounting tube section (2).

4. Inner sleeve according to claim 2 or 3, wherein the radial sides of the annular convexly curved surface (101) and/or the straight tube section (102) are provided with positioning reference surfaces (103).

5. The bushing inner sleeve according to claim 4, characterized in that it comprises two positioning reference surfaces (103), said positioning reference surfaces (103) being circumferentially symmetrically arranged on the annular convexly curved surface (101) and/or the straight tube section (102).

6. The bushing inner sleeve according to claim 1, characterized in that the portion of the mounting pipe section (2) which is arranged outside the bushing member (3) after the bushing member (3) is provided with a buffer boss (201).

7. A bushing, characterized in that it comprises a bushing component (3) and an inner bushing sleeve according to any one of claims 1-6, wherein the bushing component (3) is arranged on the installation pipe section (2) in a sleeved manner.

8. The bushing of claim 7, wherein the bushing component (3) and the mounting tube section (2) are vulcanized as one piece.

9. A steering knuckle, characterized by comprising a mounting hole for a knuckle mounting part (1) for mounting a bush according to claim 7 or 8, wherein the mounting hole comprises an annular concave cone arc surface (4) for mating with the annular convex cone arc surface (101) of the bush according to claim 7 or 8.

10. A vehicle, characterized in that it comprises a shock absorber lug, a steering knuckle and a bushing according to any one of the preceding claims 7 to 8, wherein the annular outer convex conical arc surface (101) of the bushing forms a conical arc surface fit with the annular inner concave conical arc surface (4) of the mounting hole of the steering knuckle.