CN217260259U - Steering system and automobile - Google Patents

Abstract

The utility model provides a steering system and car relates to car technical field. Wherein, a steering system includes: the steering intermediate shaft, the universal joint and the rubber component are arranged on the steering intermediate shaft; the rubber component is sleeved on the first end of the steering intermediate shaft and is fixedly connected with the steering intermediate shaft, and the second end of the steering intermediate shaft is used for being connected with a steering column of a steering system; the universal joint comprises an upper joint fork and a lower joint fork which are matched with each other; the lower joint fork is used for being connected with a steering gear of a steering system; the upper yoke is sleeved on the rubber component and abutted against the rubber component, and the upper yoke is fixedly connected with the first end of the steering intermediate shaft. The automobile includes: wheels and a steering system; the steering system is used for changing an included angle between a wheel and a longitudinal axis of the automobile. Through with rubber component installation at last yoke with turn to between the jackshaft, reduced rubber component and the assembly degree of difficulty that turns to the jackshaft to can improve steering system's assembly efficiency.

Description

Steering system and automobile

Technical Field

The utility model relates to a steering system and car belongs to car technical field.

Background

When the automobile runs on a bumpy road surface, the vibration of the road surface is transmitted to a suspension system through a tire and then transmitted to the interior of a cab through a steering system, and a driver can sense the structural noise and the vibration on a steering wheel.

A steering column of a steering system in the related art is connected with a steering intermediate shaft through a rubber bushing assembly, the steering column is sleeved on the rubber bushing assembly, and the rubber bushing assembly is sleeved on the steering intermediate shaft. When the automobile runs on a bumpy road, the rubber bushing assembly can absorb vibration transmitted by a steering system and noise generated by the steering system, so that a driver does not feel structural noise of the steering system and vibration of a steering wheel.

However, the above-described steering system is inefficient to assemble.

SUMMERY OF THE UTILITY MODEL

The utility model provides a steering system and car has solved prior art steering system's problem that assembly efficiency is low.

In a first aspect, the present invention provides a steering system, including: a steering intermediate shaft, a universal joint and a rubber component;

the rubber assembly is sleeved on the first end of the steering intermediate shaft and is fixedly connected with the steering intermediate shaft, and the second end of the steering intermediate shaft is used for being connected with a steering column of the steering system;

the universal joint comprises an upper joint fork and a lower joint fork which are matched with each other;

the lower joint fork is used for being connected with a steering gear of the steering system;

the upper yoke is sleeved on the rubber component and abutted against the rubber component, and the upper yoke is tightly connected with the first end of the steering intermediate shaft.

In one possible embodiment of the first aspect, the rubber assembly comprises a first metal bushing, a rubber bushing, and a second metal bushing, which are coaxially arranged;

the first metal bushing is sleeved on the rubber bushing and is fixedly connected with the rubber bushing;

the rubber bushing is sleeved on the second metal bushing and is fixedly connected with the second metal bushing;

the second metal bushing is sleeved on the first end of the steering intermediate shaft and is fixedly connected with the steering intermediate shaft.

In one possible embodiment of the first aspect, the first metal bushing, the rubber bushing, and the second metal bushing are of unitary construction.

In one possible embodiment of the first aspect, the first metal bushing includes a first tubular portion and a plurality of first tooth portions; the center line of each first tooth-shaped part is parallel to the center line of the first tubular part, and the first tooth-shaped parts are arranged on the inner wall of the first tubular part at intervals along the circumferential direction of the first tubular part.

In one possible embodiment of the first aspect, the first tubular portion comprises a first tubular section and a second tubular section arranged coaxially; the first tubular section is located above the second tubular section, and the inner wall of the first tubular section and the second tubular section define a step surface in abutment with the rubber bushing and the second metal bushing; and/or the presence of a gas in the gas,

the cross section of the first tooth-shaped part is semicircular, semi-elliptical or polygonal.

In one possible embodiment of the first aspect, the second metal bushing includes a second tubular portion and a plurality of second tooth portions; the center line of each second tooth-shaped part is parallel to the center line of the second tubular part, and a plurality of second tooth-shaped parts are arranged on the outer wall of the second tubular part at intervals along the circumferential direction of the second tubular part.

In one possible embodiment of the first aspect, the second tooth-shaped portion has a semicircular, semi-elliptical or polygonal cross-section.

In one possible embodiment of the first aspect, the steering intermediate shaft includes a rod portion and two opposing flange portions;

the rubber component is sleeved on the first end of the rod-shaped part;

the two flanging parts are respectively arranged on two opposite side walls of the first end of the rod-shaped part, and the two flanging parts are respectively abutted against the bottom end surface of the upper yoke.

In one possible embodiment of the first aspect, a gap exists between a side wall of the rod-shaped portion and an inner wall of the lower yoke.

In a second aspect, the present invention further provides an automobile, comprising wheels and any one of the above-mentioned steering systems;

the steering system is used for changing an included angle between the wheel and a longitudinal axis of the automobile.

The utility model provides a steering system, include: the steering intermediate shaft, the universal joint and the rubber component are arranged on the steering intermediate shaft; the rubber component is sleeved on the first end of the steering intermediate shaft and is fixedly connected with the steering intermediate shaft, and the second end of the steering intermediate shaft is used for being connected with a steering column of a steering system; the universal joint comprises an upper joint fork and a lower joint fork which are matched with each other; the lower joint fork is used for being connected with a steering gear of a steering system; the upper joint fork is sleeved on the rubber component and abutted against the rubber component, and the upper joint fork is fixedly connected with the first end of the steering intermediate shaft. The utility model discloses an install rubber component at last section fork and turn to between the jackshaft, reduced rubber component and the assembly degree of difficulty that turns to the jackshaft to can improve a steering system's assembly efficiency. In addition, when the automobile runs on a bumpy road surface, the rubber component can absorb vibration and noise, so that the driver cannot feel the vibration and the noise of the steering wheel.

Drawings

The above and other objects, features and advantages of the embodiments of the present invention will become more readily understood from the following detailed description with reference to the accompanying drawings. Embodiments of the invention will be described, by way of example and not by way of limitation, in the accompanying drawings, in which:

fig. 1 is a perspective view of a steering system according to an embodiment of the present invention;

fig. 2 is a partial perspective view of a universal joint of a steering system according to an embodiment of the present invention;

fig. 3 is a partial cross-sectional view of a steering system according to an embodiment of the present invention at a universal joint;

fig. 4 is a partial exploded view of a steering system according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a rubber component of an embodiment of the present invention;

fig. 6 is a cross-sectional view of a first metal bushing in accordance with an embodiment of the present invention;

fig. 7 is a cross-sectional view of a second metal bushing in accordance with an embodiment of the present invention;

fig. 8 is a partial perspective view of an upper yoke of a steering system according to an embodiment of the present invention;

fig. 9 is a partial perspective view of the steering intermediate shaft according to the embodiment of the present invention;

fig. 10 is a partial perspective view of an automobile according to an embodiment of the present invention.

Reference numerals:

1000. a steering system;

100. a steering intermediate shaft; 110. a rod-shaped portion; 111. a first rod-like section; 112. a second rod-like section; 113. a third rod-like section; 120. flanging part;

200. a universal joint; 210. an upper section fork; 211. a third tubular portion; 212. a plate-like portion; 220. a lower section fork;

300. a rubber component;

310. a first metal bushing; 311. a first tubular portion; 312. a first tooth-shaped portion;

320. a rubber bushing;

330. a second metal bushing; 331. a second tubular portion; 332. a second tooth-shaped portion;

400. a steering column; 500. a steering wheel;

2000. and (7) wheels.

Detailed Description

Reference will now be made in detail to 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 function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

When the automobile runs on a bumpy road surface, the vibration of the road surface is transmitted to a suspension system through a tire and then transmitted to the interior of a cab through a steering system, and a driver can sense the structural noise and the vibration on a steering wheel.

In order to insulate noise and suppress transmission of vibration to the steering wheel, a steering system in the related art includes a steering column, a steering intermediate shaft, and a steering wheel. The steering wheel is tightly installed on the first end of the steering column, the second end of the steering column is connected with the first end of the steering intermediate shaft, and the second end of the steering intermediate shaft is connected with the steering gear. The steering intermediate shaft comprises a steering pipe, a rubber bushing assembly and an intermediate shaft. The first end of the steering tube is connected with the second end of the steering column, and the second end of the steering tube is sleeved on the rubber bushing assembly. The rubber bushing assembly is sleeved over the first end of the intermediate shaft such that a portion of the intermediate shaft is located within the steerer tube. When the automobile runs on a bumpy road, the rubber bushing assembly can absorb vibration transmitted by a steering system and noise generated by the steering system, so that a driver does not feel structural noise of the steering system and vibration of a steering wheel.

However, when the rubber bush assembly is installed in the steering intermediate shaft, the structure of the steering intermediate shaft is complex, and the assembly difficulty of the steering intermediate shaft is high, so that the assembly efficiency of the steering intermediate shaft is low, and further the assembly efficiency of a steering system is low.

In view of this, the inventor of the present disclosure installs the rubber bushing assembly between the universal joint and the steering intermediate shaft, which can avoid the complicated structure of the steering intermediate shaft to improve the assembly efficiency of the steering intermediate shaft, and can provide the integration level of the steering intermediate shaft and the rubber bushing assembly to improve the assembly efficiency of the steering system.

Specifically, the present disclosure provides a steering system including: steering intermediate shaft, universal joint and rubber component. The rubber component suit turns to on the first end of jackshaft and with turn to jackshaft fastening connection, turn to the second end of jackshaft and be used for being connected with steering system's steering column. The universal joint comprises an upper joint fork and a lower joint fork which are matched with each other. The lower yoke is used for being connected with a steering gear of a steering system. Go up the festival fork suit on rubber component and with the rubber component butt to go up the festival fork and turn to the first end fastening connection of jackshaft, so set up, can reduce rubber component and the assembly degree of difficulty that turns to the jackshaft, thereby can improve steering system's commentaries on classics and join in marriage efficiency.

The following describes the steering system and the automobile in detail with reference to specific embodiments.

Fig. 1 is a perspective view of a steering system of the present embodiment, fig. 2 is a partial perspective view of a gimbal of the steering system of the present embodiment, and fig. 3 is a partial sectional view of the gimbal of the steering system of the present embodiment.

The present embodiment provides a steering system 1000, as shown in fig. 1, the steering system 1000 at least includes: steering mid shaft 100, universal joint 200, rubber assembly 300, steering gear, steering column 400, and steering wheel 500. Wherein both ends of the steering intermediate shaft 100 are connected to a first end of a steering column 400 and a steering gear through a universal joint 200, respectively, and a steering wheel 500 is mounted on a second end of the steering column 400.

As shown in fig. 2 and 3, rubber assembly 300 is fitted over a first end of steering intermediate shaft 100 and is tightly coupled to steering intermediate shaft 100 so that rubber assembly 300 does not move in the axial direction on steering intermediate shaft 100. The second end of steering mid shaft 100 is adapted to be coupled to a first end of steering column 400. it will be appreciated that the second end of steering mid shaft 100 may be coupled to steering column 400 via a universal joint 200.

As shown in fig. 2, universal joint 200 includes an upper yoke 210 and a lower yoke 220 that mate with each other. Wherein the lower yoke 220 is used for connection with a steering gear. The upper yoke 210 is fitted over the rubber member 300 and abuts against the rubber member 300, and the upper yoke 210 is fastened to the first end of the steering intermediate shaft 100.

It should be noted that, as shown in fig. 3, the rubber member 300 has a tubular structure such that the upper fork 210 is fitted over the steering intermediate shaft 100 via the rubber member 300, and therefore, a gap is defined between the outer wall of the first end of the steering intermediate shaft 100 and the inner wall of the upper fork 210.

Because the rubber component 300 is sleeved on the steering intermediate shaft 100, and the upper yoke 210 is sleeved on the rubber component 300, in the assembling process, the rubber component 300 can be firstly sleeved on the steering intermediate shaft 100 and is in interference fit with the steering intermediate shaft 100, then the upper yoke 210 is sleeved on the rubber component 300 and is in interference fit with the rubber component 300, and finally the steering intermediate shaft 100 and the upper yoke 210 are fixed, so that the assembling difficulty of the rubber component 300 and the steering intermediate shaft 100 can be reduced, the production efficiency of the steering system 1000 can be improved, and the integration degree of the steering system 1000 can be improved by the other side.

When the excitation of the road surface is transmitted to the rubber member 300 while the vehicle is running straight or during a low torque steering, the rubber member 300 absorbs the vibration energy, and thus the steering column 400 does not vibrate, and the driver does not perceive a slight vibration on the steering wheel. In addition, since the rubber assembly 300 can also absorb structural noise transmitted along the steering system 1000, the driver does not hear the structural noise, wherein the structural noise refers to vibration noise generated by vibration of the steering system 1000. The excitation of the road surface refers to the longitudinal vibration of the vehicle when the road surface unevenness is excited.

When the automobile is in a high-torque steering process, the rubber component 300 deforms, so that the outer wall of the first end of the steering intermediate shaft 100 is abutted against the inner wall of the upper yoke 210, and a gap S (shown as S in fig. 3) between the steering intermediate shaft 100 and the upper yoke 210 is eliminated, so that the steering intermediate shaft 100 is in direct contact with the upper yoke 210 and transmits steering torque, and by the arrangement, on one hand, the use requirement of the steering system 1000 can be met, and on the other hand, the reliability and the overall strength of the steering system 1000 can be improved.

Fig. 4 is a partial exploded view of the steering system of the present embodiment, and fig. 5 is a sectional view of a rubber member of the present embodiment.

In one possible implementation, as shown in fig. 4 and 5, the rubber assembly 300 includes a first metal bushing 310, a rubber bushing 320, and a second metal bushing 330 that are coaxially disposed. The first metal bushing 310 is sleeved on the rubber bushing 320 and is tightly connected with the rubber bushing 320. The rubber bushing 320 is fitted over the second metal bushing 330 and is tightly coupled to the second metal bushing 330. Second metal bushing 330 is fitted over a first end of steering intermediate shaft 100 and is fixedly coupled to steering intermediate shaft 100. So set up, on the one hand can absorb vibration and noise, on the other hand can improve the life of rubber component 300.

As shown in fig. 5, the first metal bushing 310, the rubber bushing 320, and the second metal bushing 330 are arranged in this order from the outside to the inside in the radial direction of the steering intermediate shaft 100. In addition, the second metal bushing 330 may be interference-fitted with the steering intermediate shaft 100 to preliminarily fix the rubber assembly 300 and the steering intermediate shaft 100.

It is understood that the first and second metal bushings 310 and 330 may increase the stiffness of the rubber assembly 300 to increase the service life of the rubber assembly 300.

It will be appreciated that during steering or linear movement of the vehicle, the rubber bushings 320 absorb vibration energy and structural noise generated by the steering system 1000 to ensure that the driver does not experience noise and steering wheel 500 vibrations.

It is understood that the first and second metal bushings 310 and 330 are made of metal material, for example, the material of the first and second metal bushings 310 and 330 is copper, stainless steel, etc., and the material of the first and second metal bushings 310 and 330 may be the same or different.

It will be appreciated that the rubber bushing 320 is made of a rubber material so that the rubber bushing 320 can deform and absorb noise and vibration energy.

In some examples, the first metal bushing 310, the rubber bushing 320, and the second metal bushing 330 are an integral structure, so that the service life of the rubber assembly 300 can be prolonged, and the assembly efficiency of the rubber assembly 300 and the steering intermediate shaft 100 can be improved.

Since the first metal bushing 310, the rubber bushing 320, and the second metal bushing 330 are an integral structure, the rubber member 300 may be prefabricated in advance before assembling the rubber member 300 and the steering intermediate shaft 100, so that the rubber member 300 may be fitted over the steering intermediate shaft 100 in one step.

Illustratively, first metal bushing 310, rubber bushing 320, and second metal bushing 330 may be bonded together by a vulcanization process such that rubber assembly 300 is a unitary piece.

Fig. 6 is a sectional view of the first metal bush of the present embodiment.

In one possible implementation, as shown in fig. 6, the first metal bushing 310 includes a first tubular portion 311 and a plurality of first toothed portions 312. Wherein, the central line of each first tooth-shaped part 312 is parallel to the central line of the first tubular part 311, the length direction of each first tooth-shaped part 312 is parallel along the axial direction of the first tubular part 311, and the first tooth-shaped part 312 extends along the axial direction of the first tubular part 311. A plurality of first tooth portions 312 are provided at intervals on the inner wall of the first tubular portion 311 in the circumferential direction of the first tubular portion 311, the first tooth portions 312 being in contact with the rubber bush 320. With this arrangement, the torsional rigidity of the rubber assembly 300 can be improved, so that the steering feel of the steering system 1000 can be improved.

It will be appreciated that the cross-section of the first metal bushing 310 is internal gear-like, wherein the cross-section of the first metal bushing 310 is perpendicular to the axis of the first tubular portion 311.

For example, the cross section of the first tubular portion 311 may be circular to match the outer shape of the steering intermediate shaft 100.

In some examples, the first tubular portion 311 and the first tooth portion 312 are a unitary structure, which may improve manufacturing efficiency of the first metal bushing 310 on the one hand and connection strength of the first tubular portion 311 and the first tooth portion 312 on the other hand.

In some examples, the cross-section of the first tooth 312 is semi-circular, semi-elliptical, or polygonal. For example, the cross section of the first tooth 312 is a polygon such as a quadrangle, a pentagon, and the like. Wherein the cross section of the first tooth-shaped portion 312 is perpendicular to the axis of the first tubular portion 311.

In some examples, the first tubular portion 311 includes a first tubular section and a second tubular section that are coaxially disposed. The first tubular section is located above the second tubular section and the inner wall of the first tubular section and the second tubular section define a step surface against which the rubber bushing 320 and the second metal bushing 330 abut. With such an arrangement, the manufacturing difficulty of the first metal bushing 310, the rubber bushing 320 and the second metal bushing 330 can be reduced.

The rubber bush 320 and the second metal bush 330 are abutted against a step surface defined by an inner wall of the first tubular portion 311, and the relative positions of the first metal bush 310, the rubber bush 320, and the second metal bush 330 are not changed during vulcanization of the rubber assembly 300.

Fig. 7 is a sectional view of the second metal bush of the present embodiment.

In one possible implementation, as shown in fig. 7, the second metal bushing 330 includes a second tubular portion 331 and a plurality of second tooth portions 332. Wherein a center line of each second tooth-shaped portion 332 is parallel to a center line of the second tubular portion 331, a length of each second tooth-shaped portion 332 is parallel to an axial direction of the second tubular portion 331, and further, the second tooth-shaped portions 332 are arranged to extend in the axial direction of the second tubular portion 331. A plurality of second tooth portions 332 are provided on the outer wall of the second tubular portion 331 at intervals in the circumferential direction of the second tubular portion 331 so that the second tooth portions 332 are in contact with the rubber bush 320. With this arrangement, the torsional rigidity of the rubber assembly 300 can be improved, so that the steering feel of the steering system 1000 can be improved.

It will be appreciated that the second metal bushing 330 is externally gear-shaped in cross-section, wherein the cross-section of the second metal bushing 330 is perpendicular to the axis of the second tubular portion 331.

For example, the cross section of the first tubular portion 311 may be circular to match the outer shape of the steering intermediate shaft 100.

It should be noted that, when the cross section of the first metal bushing 310 is shaped like an internal gear, the plurality of first tooth-shaped portions 312 of the first metal bushing 310 and the plurality of second tooth-shaped portions 332 of the first metal bushing 310 are alternately arranged along the circumferential direction, so that on one hand, the torsional rigidity of the steering system 1000 can be further improved, and on the other hand, circumferential movement of the rubber bushing 320 can be avoided. Wherein, the circumferential movement refers to the movement of the rubber bushing 320 in the axial direction.

In some examples, the cross-section of the second tooth 332 is semi-circular, semi-elliptical, or polygonal. For example, the cross section of the second tooth 332 is a polygon such as a quadrangle, a pentagon, etc. Wherein the cross-section of the second tooth 332 is perpendicular to the axis of the second tubular portion 331.

Fig. 8 is a partial perspective view of the steering system of the present embodiment at the upper fork, and fig. 9 is a partial perspective view of the steering intermediate shaft of the present embodiment.

In one possible implementation, as shown in fig. 8 and 9, the steering intermediate shaft 100 includes a rod portion 110 and two opposing flange portions 120. Wherein the rubber member 300 is fitted over the first end of the shaft portion 110. The two flanging parts 120 are respectively arranged on two opposite side walls of the first end of the rod-shaped part 110, and the two flanging parts 120 are respectively abutted against the bottom end face of the upper yoke 210, so that the first end of the steering intermediate shaft 100 is tightly connected with the upper yoke 210, the steering intermediate shaft 100, the upper yoke 210 and the rubber component 300 can be prevented from being separated, and the reliability of the rubber component 300 can be improved.

In order to satisfy the conditions of large steering, small steering, linear motion and the like, a gap exists between the side wall of the rod-shaped portion 110 and the inner wall of the lower yoke 220, and the gap enables the steering intermediate shaft 100 not to contact the upper yoke 210 during small steering and linear motion of the automobile. When the vehicle is largely steered, the gap is eliminated, and the steering intermediate shaft 100 is in contact with the inner wall of the upper yoke 210, so that the steering torque can be directly transmitted, and the reliability of the steering system 1000 can be improved.

It can be understood that the flange portion 120 and the rod portion 110 are integrally formed, which can improve the connection strength between the flange portion 120 and the rod portion 110, and can reduce the difficulty in forming the flange portion 120.

In the assembly process, when the upper yoke 210 is fitted over the rubber member 300, the burring 120 of the present application may be formed at the end of the steering intermediate shaft 100 by riveting, so that the burring 120 abuts against the inner wall of the upper yoke 210. The direction of caulking is toward the inner wall of the upper yoke 210.

In some examples, the longitudinal section of the burring part 120 is polygonal, for example, the longitudinal section of the burring part 120 is polygonal such as a triangle, a quadrangle, and the like.

In some examples, as shown in fig. 4, the shaft 110 includes a first shaft section 111, a second shaft section 112, and a third shaft section 113. The second rod-shaped section 112 has two ends connected to a first end of the first rod-shaped end and a first end of the third rod-shaped section 113, respectively. The outer diameter of the first rod section 111 is smaller than the outer diameter of the third rod section 113.

The first rod-shaped section 111 has a polygonal longitudinal section, for example, the first rod-shaped section 111 has a quadrangular longitudinal section.

In one possible implementation, as shown in fig. 8, the upper yoke 210 includes a third tubular portion 211 and two plate portions 212. The two plate-like portions 212 are provided on the first end face of the third tubular portion 211, and the plate-like portions 212 are perpendicular to the first end face of the third tubular portion 211. The plate portion 212 is provided with a through hole rotatably connected to the lower yoke 220.

It is understood that the rubber member 300 is located inside the third tubular portion 211, and the burring portion 120 abuts against the inner wall of the third tubular portion 211 or the first end face of the third tubular portion 211 to fix the upper yoke 210, the rubber member 300, and the steering intermediate shaft 100.

Fig. 10 is a partial perspective view of the automobile of the present embodiment.

The present embodiment also provides an automobile, as shown in fig. 10, which includes at least a wheel 2000 and a steering system 1000. The steering system 1000 is used, among other things, to change the angle between the wheels 2000 and the longitudinal axis of the vehicle.

The specific structure and technical effects of the steering system 1000 have been set forth in detail in the foregoing, and will not be described in detail herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims (10)

1. A steering system, comprising: a steering intermediate shaft, a universal joint and a rubber component;

the rubber assembly is sleeved on the first end of the steering intermediate shaft and is fixedly connected with the steering intermediate shaft, and the second end of the steering intermediate shaft is used for being connected with a steering column of the steering system;

the universal joint comprises an upper joint fork and a lower joint fork which are matched with each other;

the lower joint fork is used for being connected with a steering gear of the steering system;

the upper yoke is sleeved on the rubber assembly and abutted against the rubber assembly, and the upper yoke is tightly connected with the first end of the steering intermediate shaft.

2. The steering system of claim 1, wherein the rubber assembly comprises a first metal bushing, a rubber bushing, and a second metal bushing coaxially disposed;

the first metal bushing is sleeved on the rubber bushing and is fixedly connected with the rubber bushing;

the rubber bushing is sleeved on the second metal bushing and is fixedly connected with the second metal bushing;

the second metal bushing is sleeved on the first end of the steering intermediate shaft and is fixedly connected with the steering intermediate shaft.

3. The steering system of claim 2, wherein the first metal bushing, the rubber bushing, and the second metal bushing are a unitary structure.

4. A steering system according to claim 2 or 3, wherein the first metal bushing comprises a first tubular portion and a plurality of first toothed portions; the center line of each first tooth-shaped part is parallel to the center line of the first tubular part, and the first tooth-shaped parts are arranged on the inner wall of the first tubular part at intervals along the circumferential direction of the first tubular part.

5. The steering system of claim 4, wherein the first tubular portion comprises a first tubular section and a second tubular section coaxially disposed; the first tubular section is located above the second tubular section, and the inner wall of the first tubular section and the second tubular section define a step surface in abutment with the rubber bushing and the second metal bushing; and/or the presence of a gas in the gas,

the cross section of the first tooth-shaped part is semicircular, semi-elliptical or polygonal.

6. A steering system according to claim 2 or 3, wherein the second metal bushing comprises a second tubular portion and a plurality of second toothed portions; the center line of each second tooth-shaped part is parallel to the center line of the second tubular part, and a plurality of second tooth-shaped parts are arranged on the outer wall of the second tubular part at intervals along the circumferential direction of the second tubular part.

7. The steering system of claim 6, wherein the second tooth is semi-circular, semi-elliptical, or polygonal in cross-section.

8. The steering system according to any one of claims 1 to 3, wherein the steering intermediate shaft includes a rod portion and two opposing flange portions;

the rubber component is sleeved on the first end of the rod-shaped part;

the two flanging parts are respectively arranged on two opposite side walls of the first end of the rod-shaped part, and the two flanging parts are respectively abutted against the bottom end surface of the upper yoke.

9. The steering system of claim 8, wherein a gap exists between a side wall of the stem and an inner wall of the lower yoke.

10. An automobile comprising wheels and a steering system according to any one of claims 1 to 9;

the steering system is used for changing an included angle between the wheel and a longitudinal axis of the automobile.

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