阅读说明：本技术 一种控制臂及汽车 (Control arm and car ) 是由 黄晓宙 尹和俭 吴学华 陈昊 于 2019-11-29 设计创作，主要内容包括：本发明提供一种控制臂及汽车,控制臂包括：控制臂本体、第一连接件、第二连接件和第三连接件,所述控制臂本体的第一端与所述第一连接件固定连接,所述控制臂本体的第二端与所述第二连接件固定连接,所述控制臂本体的第三端与所述第三连接件固定连接,所述控制臂本体、所述第一连接件、所述第二连接件和所述第三连接件为一体成型结构。本发明实施例中,由于控制臂的控制臂本体、第一连接件、第二连接件和第三连接件为一体成型结构,从而增强了控制臂的整体强度,减少了疲劳开裂现象的发生,从而延长了控制臂的使用寿命。(The invention provides a control arm and an automobile, wherein the control arm comprises: the control arm comprises a control arm body, a first connecting piece, a second connecting piece and a third connecting piece, wherein the first end of the control arm body is fixedly connected with the first connecting piece, the second end of the control arm body is fixedly connected with the second connecting piece, the third end of the control arm body is fixedly connected with the third connecting piece, and the control arm body, the first connecting piece, the second connecting piece and the third connecting piece are of an integrally formed structure. In the embodiment of the invention, the control arm body, the first connecting piece, the second connecting piece and the third connecting piece of the control arm are of an integrally formed structure, so that the overall strength of the control arm is enhanced, the fatigue cracking phenomenon is reduced, and the service life of the control arm is prolonged.)

1. A control arm, comprising: the control arm comprises a control arm body, a first connecting piece, a second connecting piece and a third connecting piece, wherein the first end of the control arm body is fixedly connected with the first connecting piece, the second end of the control arm body is fixedly connected with the second connecting piece, the third end of the control arm body is fixedly connected with the third connecting piece, and the control arm body, the first connecting piece, the second connecting piece and the third connecting piece are of an integrally formed structure.

2. The control arm as set forth in claim 1 wherein at least one of said first link, said second link, and said third link is a sleeve.

3. The control arm as set forth in claim 1 wherein said control arm body is provided with a weight-reducing slot.

4. The control arm as claimed in claim 3, wherein said lightening slots include a first lightening slot and a second lightening slot, said control arm body includes opposing first and second surfaces, said first surface having said first lightening slot disposed thereon, said second surface having a second lightening slot disposed thereon, and said first lightening slot and said second lightening slot are not in communication.

5. The control arm as set forth in claim 3 wherein said control arm body includes first and second opposed surfaces, said weight-reducing slot extending through said first and second surfaces.

6. The control arm as claimed in claim 1, wherein a bumper is further provided on the control arm body.

7. The control arm according to claim 1, characterized in that said control arm body, said first connection, said second connection and said third connection are provided with a corrosion resistant layer on their surface.

8. The control arm as set forth in claim 7 wherein said corrosion resistant layer is formed by a spray coating process.

9. The control arm as claimed in claim 1, wherein said control arm body, said first connector, said second connector and said third connector are made using a casting process.

10. An automobile, characterized in that it comprises a control arm according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of automobiles, in particular to a control arm and an automobile.

Background

With the rapid development of automobile technology, automobiles are developing more and more towards light weight. For example: the performance characteristics of the control arm of the automobile, which is used as a guide and force transmission element of the automobile suspension system, have a crucial influence on the comprehensive performance of the automobile suspension system. In actual use, the control arm of the automobile is easy to generate fatigue cracking, so that the service life of the control arm is short.

Disclosure of Invention

The embodiment of the invention provides a control arm and an automobile, and aims to solve the problem that the service life of the control arm is short.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a control arm, including: the control arm comprises a control arm body, a first connecting piece, a second connecting piece and a third connecting piece, wherein the first end of the control arm body is fixedly connected with the first connecting piece, the second end of the control arm body is fixedly connected with the second connecting piece, the third end of the control arm body is fixedly connected with the third connecting piece, and the control arm body, the first connecting piece, the second connecting piece and the third connecting piece are of an integrally formed structure.

Optionally, at least one of the first connecting piece, the second connecting piece and the third connecting piece is a sleeve.

Optionally, the control arm body is provided with a weight reduction groove.

Optionally, the weight reducing slots include a first weight reducing slot and a second weight reducing slot, the control arm body includes a first surface and a second surface opposite to each other, the first surface is provided with the first weight reducing slot, the second surface is provided with the second weight reducing slot, and the first weight reducing slot and the second weight reducing slot are not communicated with each other.

Optionally, the control arm body includes first and second opposing surfaces, and the weight-reduction slot extends through the first and second surfaces.

Optionally, the control arm body is further provided with a buffer block.

Optionally, the surfaces of the control arm body, the first connecting piece, the second connecting piece and the third connecting piece are all provided with an anti-corrosion layer.

Optionally, the anti-corrosion layer is prepared by a spraying process.

Optionally, the control arm body, the first connecting piece, the second connecting piece and the third connecting piece are manufactured by a casting process.

In a second aspect, an embodiment of the present invention provides an automobile, including the control arm.

The control arm provided by the embodiment of the invention comprises: the control arm comprises a control arm body, a first connecting piece, a second connecting piece and a third connecting piece, wherein the first end of the control arm body is fixedly connected with the first connecting piece, the second end of the control arm body is fixedly connected with the second connecting piece, the third end of the control arm body is fixedly connected with the third connecting piece, and the control arm body, the first connecting piece, the second connecting piece and the third connecting piece are of an integrally formed structure. Like this, because control arm body, first connecting piece, second connecting piece and the third connecting piece of control arm are integrated into one piece structure to strengthen the bulk strength of control arm, reduced the emergence of fatigue fracture phenomenon, thereby prolonged the life of control arm.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of a control arm according to an embodiment of the present invention;

fig. 2 is a second schematic structural diagram of a control arm according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, an embodiment of the present invention provides a control arm including: the control arm comprises a control arm body 10, a first connecting piece 20, a second connecting piece 30 and a third connecting piece 40, wherein the first end of the control arm body 10 is fixedly connected with the first connecting piece 20, the second end of the control arm body 10 is fixedly connected with the second connecting piece 30, the third end of the control arm body 10 is fixedly connected with the third connecting piece 40, and the control arm body 10, the first connecting piece 20, the second connecting piece 30 and the third connecting piece 40 are of an integrally formed structure.

The control arm body 10 may be a U-shaped structure, and the second end and the third end of the control arm body 10 are two opposite ends of the opening of the U-shaped structure, respectively, and the first end is the end of the U-shaped structure away from the opening.

The first connecting member 20, the second connecting member 30, and the third connecting member 40 may be sleeves, and of course, the first connecting member 20, the second connecting member 30, and the third connecting member 40 may also be nuts or semi-closed sleeves, etc.

In addition, the materials of the control arm body 10, the first link 20, the second link 30, and the third link 40 are not particularly limited herein, for example: the control arm body 10, the first link 20, the second link 30, and the third link 40 may be all of a metal material, a rubber material, or the like.

It should be noted that fig. 1 may show a schematic structure of the control arm in the first direction, fig. 2 may show a schematic structure of the control arm in the second direction, and the first direction and the second direction may be opposite directions.

The control arm provided by the embodiment of the invention comprises: the control arm comprises a control arm body 10, a first connecting piece 20, a second connecting piece 30 and a third connecting piece 40, wherein the first end of the control arm body 10 is fixedly connected with the first connecting piece 20, the second end of the control arm body 10 is fixedly connected with the second connecting piece 30, the third end of the control arm body 10 is fixedly connected with the third connecting piece 40, and the control arm body 10, the first connecting piece 20, the second connecting piece 30 and the third connecting piece 40 are of an integrally formed structure. In this way, the control arm body 10, the first connecting piece 20, the second connecting piece 30 and the third connecting piece 40 of the control arm are of an integrally formed structure, so that the overall strength of the control arm is enhanced, the occurrence of fatigue cracking is reduced, and the service life of the control arm is prolonged.

Optionally, at least one of the first connector 20, the second connector 30, and the third connector 40 is a sleeve.

At least one of the first connector 20, the second connector 30 and the third connector 40 is a sleeve, and the rest may be a nut, for example: the first connector 20 may be a sleeve, and the second connector 30 and the third connector 40 may be nuts.

Of course, it is preferable that the first connector 20, the second connector 30 and the third connector 40 are all sleeves.

In the embodiment of the present invention, at least one of the first connecting member 20, the second connecting member 30, and the third connecting member 40 is a sleeve, so that the control arm body 10 can be connected to other components through the sleeve, and thus, the control arm body 10 can be detached from other components more conveniently and quickly.

As an alternative embodiment, when the second connecting member 20 and the third connecting member 30 are both sleeves, weight-reducing grooves may be formed on both the second connecting member 20 and the third connecting member 30. Therefore, the weight of the whole control arm can be further reduced, and the control arm is convenient to mount.

Optionally, referring to fig. 1 and 2, the control arm body 10 is provided with a weight-reducing slot 11.

The specific shape and size of the weight-reducing slot 11 are not specifically limited herein, and may be, for example: the lightening groove 11 may be a rectangular groove, a circular groove, or the like, and of course, the depth of the depression of the lightening groove 11 in the thickness direction of the control arm body 10 may be the same as the thickness of the control arm body 10, or less than the thickness of the control arm body 10 (e.g., equal to one-half of the thickness of the control arm body).

In addition, by arranging the lightening grooves 11, the local stress of the control arm body 10 can be reduced, and the strength performance requirement of the control arm body 10 can be met.

In the embodiment of the invention, the weight reduction groove 11 is arranged on the control arm body 10, so that the weight of the whole control arm can be reduced on the premise of ensuring the requirements of the strength and the like of the control arm body 10, the installation is convenient, and the cost is saved.

Optionally, the weight-reducing slots 11 include a first weight-reducing slot and a second weight-reducing slot, the control arm body 10 includes a first surface and a second surface opposite to each other, the first surface is provided with the first weight-reducing slot, the second surface is provided with the second weight-reducing slot, and the first weight-reducing slot and the second weight-reducing slot are not communicated with each other.

Wherein, the shape and size of the first lightening groove and the second lightening groove can be the same, for example: the first weight reducing groove and the second weight reducing groove can be rectangular grooves, and the depth of the first weight reducing groove is the same as that of the second weight reducing groove. Of course, the shape and size of the first weight-reducing grooves and the second weight-reducing grooves may also be different. For example: the first weight-reducing grooves are rectangular grooves, and the second weight-reducing grooves are circular grooves.

In addition, the arrangement positions of the first lightening slots and the second lightening slots can correspond to each other, for example: the position of the first lightening groove on the first surface may correspond to the position of the second lightening groove on the second surface, so that the cross section of the control arm body 10 at the position where the first lightening groove and the second lightening groove are provided may be H-shaped. Of course, the arrangement positions of the first lightening slots and the second lightening slots can also be arranged in a staggered manner. For example: the perpendicular projection of the arrangement position of the first lightening groove on the first surface on the second surface is a first area, the arrangement position of the second lightening groove on the second surface is a second area, and the first area and the second area are arranged in a staggered mode.

In the embodiment of the present invention, the weight-reducing slots 11 include the first weight-reducing slot and the second weight-reducing slot, so that the weight of the entire control arm can be further reduced.

Optionally, the control arm body 10 includes a first surface and a second surface opposite to each other, and the weight-reducing slot 11 penetrates through the first surface and the second surface.

In the embodiment of the invention, the weight-reducing grooves 11 penetrate through the first surface and the second surface, so that the weight-reducing grooves 11 can be processed by one-time punch forming, the processing difficulty of the weight-reducing grooves 11 can be reduced, the processing steps are reduced, and the processing efficiency is improved.

Optionally, referring to fig. 1, a buffer block 12 is further disposed on the control arm body 10.

The material of the buffer block 12 is not specifically limited herein, and for example: the buffer block 12 may be made of metal, rubber, plastic, or the like.

In addition, the specific installation position of the buffer block 12 is not limited herein, for example: it is possible to arrange the cushion block 12 at a place where the impact load of the entire control arm body 10 is the largest by calculation, thereby enhancing the load impact resistance of the control arm body 10.

In the embodiment of the invention, the control arm body 10 is further provided with the buffer block 12, so that the vibration absorption effect of the control arm body 10 can be enhanced, the phenomenon that the control arm body 10 is damaged due to vibration is reduced, and the service life of the control arm body 10 is prolonged.

Optionally, the control arm body 10, the first connecting piece 20, the second connecting piece 30 and the third connecting piece 40 are all provided with an anti-corrosion layer on their surfaces.

The specific material of the anti-corrosion layer is not limited herein, for example: the anti-corrosion layer can be made of paint or a material with an anti-oxidation effect.

In the embodiment of the present invention, the surfaces of the control arm body 10, the first connecting member 20, the second connecting member 30, and the third connecting member 40 are all provided with an anti-corrosion layer, so that corrosion of substances such as moisture in the air to the control arm can be reduced, the service life of the control arm can be prolonged, and the durability of the control arm can be enhanced.

Optionally, the anti-corrosion layer is prepared by a spraying process.

In the embodiment of the invention, the anti-corrosion layer is prepared by adopting a spraying process, and the spraying process has low processing difficulty, simple processing flow and mature processing technology, so that the processing efficiency can be improved, and the processing cost can be reduced.

Optionally, the control arm body 10, the first connecting member 20, the second connecting member 30, and the third connecting member 40 are manufactured by a casting process.

In the embodiment of the present invention, the control arm body 10, the first connecting member 20, the second connecting member 30, and the third connecting member 40 are manufactured by a casting process, so that the strength, rigidity, and durability of the entire control arm can be enhanced. And the casting process can be adopted to easily manufacture parts such as ribs, holes or bosses, the process difficulty is reduced, and the reliability of the parts manufactured by the casting process is high.

The embodiment of the invention also provides an automobile which comprises the control arm.

Wherein, in use of the vehicle, the vehicle may include a shock absorber and a frame, and the first connector 20 of the control arm may be connected to the shock absorber, and the second connector 30 and the third connector 40 may be connected to the frame, respectively, such that the control arm may transmit road surface excitation.

In addition, since the automobile in the embodiment of the present invention includes the control arm in the above embodiment, the same advantageous technical effects as those of the control arm in the above embodiment are obtained, and the specific structure of the control arm may refer to the corresponding expressions in the above embodiment, which are not described herein again.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.