CN115384616A - Cast aluminum steering knuckle for automobile and automobile - Google Patents
Cast aluminum steering knuckle for automobile and automobile Download PDFInfo
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- CN115384616A CN115384616A CN202211139285.8A CN202211139285A CN115384616A CN 115384616 A CN115384616 A CN 115384616A CN 202211139285 A CN202211139285 A CN 202211139285A CN 115384616 A CN115384616 A CN 115384616A
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- automobile
- steering knuckle
- groove
- knuckle
- hub bearing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/18—Steering knuckles; King pins
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The invention discloses an automobile cast aluminum steering knuckle and an automobile, and relates to the field of automobile chassis. And a plurality of bolt holes for connecting the steering knuckle body with the hub bearing are formed in the end face where the groove of the steering knuckle body is located. The grooves are distributed between the bolt holes, and at least one groove is arranged between every two adjacent bolt holes. The invention can effectively solve the problem of abnormal sound of the binding surface of the steering knuckle and the hub bearing when the vehicle is steered in situ or at low speed.
Description
Technical Field
The invention relates to the field of automobile chassis, in particular to a cast aluminum steering knuckle for an automobile and the automobile.
Background
The steering knuckle is one of the most important parts of an automobile chassis, and can enable an automobile to stably run and sensitively transmit the running direction. Meanwhile, the knuckle plays a critical role in the suspension, and the knuckle not only needs to control the normal movement of the wheel, but also reasonably distributes tire force and load to each suspension bushing, link, and the like.
With the promotion of automobile electromotion, high-end and light weight and the continuous pursuit of people for vehicle controllability, in recent years, besides luxury vehicles, steering knuckles made of cast aluminum materials are also widely adopted in economical cars and electric vehicles, so that the vehicle control performance can be improved by reducing unsprung mass and reducing the total vehicle weight. Although the fatigue strength of the aluminum alloy is not as good as that of the traditional nodular cast iron, the automobile aluminum alloy steering knuckle analyzed by reasonable CAE (Computer Aided Engineering) can also meet the requirement of bearing load through the optimization of geometric dimensions.
Therefore, the cast aluminum knuckle and the third-generation hub bearing are the mainstream choices for the current chassis design of the automobile. Cast aluminium knuckle and third generation wheel hub bearing are the shaft hole cooperation, and both contact surfaces pass through 3 or 4 bolt fastening. The knuckle and the hub bearing are parts of the automobile which bear large load, and particularly when the automobile is turned, the knuckle and the hub bearing can bear large axial torsion load besides large radial load (Z direction) of the automobile. Because the hub bearing is made of bearing steel with very high strength, and the steering knuckle is made of cast aluminum and has relatively low strength, the contact end surface of the steering knuckle and the hub bearing can generate instantaneous dislocation deformation in the process of receiving large axial torsional load, and thus abnormal sound is generated.
Aiming at the abnormal sound problem, the universal scheme in the industry at present is that a UV coating (ultraviolet coating) is added on the end face of a bearing, the dislocation deformation generated by the steering knuckle can be in contact with the coating of the hub bearing, is not in direct contact with a steel part of the bearing, and plays a role in buffering through the coating, so that the abnormal sound cannot be generated in the steering process. However, adding a UV coating to the hub bearing surface can greatly increase overall vehicle cost.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an automobile cast aluminum steering knuckle and an automobile, which can effectively solve the problem of abnormal sound of a binding surface of the steering knuckle and a hub bearing when the automobile steers in situ or at low speed.
In order to achieve the above purpose, the cast aluminum steering knuckle for the automobile provided by the invention comprises a steering knuckle body, wherein a plurality of grooves are formed in the end surface of the steering knuckle body, which is used for being connected with a hub bearing, and the grooves are distributed on the end surface of the steering knuckle body in a surrounding manner.
On the basis of the technical scheme, a plurality of bolt holes used for connecting the steering knuckle body with the hub bearing are formed in the end face where the groove of the steering knuckle body is located.
On the basis of the technical scheme, the grooves are distributed among the bolt holes, and at least one groove is arranged between every two adjacent bolt holes.
On the basis of the technical scheme, the number of the bolt holes is 4.
On the basis of the technical scheme, 1 groove is formed between every two adjacent bolt holes.
On the basis of the technical scheme, the depth of the groove is 0.3mm, and the length of the groove is 50mm.
The invention provides an automobile which comprises a steering knuckle body and a hub bearing which are connected with each other, wherein a plurality of grooves are formed in the end face, connected with the hub bearing, of the steering knuckle body, and the grooves are distributed on the end face of the steering knuckle body in a surrounding mode.
On the basis of the technical scheme, the end face where the groove of the steering knuckle body is located is provided with a plurality of bolt holes for connecting the steering knuckle body with the hub bearing.
On the basis of the technical scheme, the grooves are distributed among the bolt holes, and at least one groove is arranged between every two adjacent bolt holes.
On the basis of the technical scheme, the depth of the groove is 0.3mm, and the length of the groove is 50mm.
Compared with the prior art, the invention has the advantages that: through having seted up a plurality of recesses on the knuckle body is used for the terminal surface be connected with the wheel hub bearing to make the knuckle receive axial torsional load after, the slight deformation that the body fluting department of knuckle received can the space release, can not with wheel hub bearing surface contact, effectively solved the problem of knuckle and wheel hub bearing binding face abnormal sound when the vehicle is original place or low-speed to turn to, and can carry out effective control to the manufacturing cost of whole car, avoid the extra increase of whole car manufacturing cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a cast aluminum knuckle for an automobile according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a specific pattern of grooves;
FIG. 3 is a schematic view of the mounting of the knuckle body and the hub bearing.
In the figure: 1-a steering knuckle body, 2-a groove, 3-a bolt hole and 4-a hub bearing.
Detailed Description
According to the cast aluminum knuckle for the automobile, provided by the embodiment of the invention, the end face, used for being connected with the hub bearing 4, of the knuckle body 1 is provided with the plurality of grooves 2, so that after the knuckle body 1 is subjected to an axial torsion load, a slight deformation of the groove of the knuckle body 1 can release space and cannot be in contact with the surface of the hub bearing 4, the problem of abnormal noise of the joint surface of the knuckle and the hub bearing 4 during in-situ or low-speed steering of the automobile is effectively solved, the manufacturing cost of the whole automobile can be effectively controlled, and the additional increase of the manufacturing cost of the whole automobile is avoided. The embodiment of the invention correspondingly provides an automobile.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. It should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, which are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be. In this application, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
For the steering knuckle of a vehicle, because the cast aluminum steering knuckle and the third-generation hub bearing 4 are matched to be in surface-to-surface contact and fastened through bolts, after the steering knuckle is subjected to axial torsional load in the process of in-situ steering of the vehicle, the contact surface of the cast aluminum steering knuckle and the bearing is subjected to instantaneous dislocation deformation to generate abnormal noise. CAE simulation analysis shows that after bolt pretightening force is loaded, the contact area of the bolt pretightening force and the bolt pretightening force is changed from surface-to-surface contact into line-to-surface contact, a certain gap exists, and the maximum gap between the surfaces is about 2.3-3 mm. When the steering load is gradually loaded, the contact surface of the steering knuckle and the hub bearing 4 is separated, the separation length is about 43mm, and abnormal sound can be generated in the separation process.
In order to solve the above problem, referring to fig. 1, an embodiment of the present invention provides a cast aluminum knuckle for an automobile, including a knuckle body 1, where a plurality of grooves 2 are formed in an end surface of the knuckle body 1, where the end surface is used for being connected to a hub bearing 4, and the grooves 2 are distributed on the end surface of the knuckle body 1 in a surrounding manner. Namely, a plurality of grooves 2 are formed in the knuckle body 1, and the grooves 2 are located on the end face of the knuckle body 1 connected with the hub bearing 4. When the vehicle is steered, after the steering knuckle is subjected to axial torsional load, the slight deformation of the notch of the steering knuckle releases space, and the notch does not contact the surface of the hub bearing 4, so that abnormal sound is avoided.
In the invention, the end face of the groove 2 of the steering knuckle body 1 is provided with a plurality of bolt holes 3 for connecting the steering knuckle body 1 and a hub bearing 4. The connection between the knuckle body 1 and the hub bearing 4 is realized through the bolt hole 3. The grooves 2 are distributed between the bolt holes 3, and at least one groove 2 is arranged between every two adjacent bolt holes 3.
Referring to fig. 2, in one possible embodiment, the number of the bolt holes 3 is 4, and 1 groove 2 is arranged between every two adjacent bolt holes 3. 4 bolt holes 3 are the distribution of quadrangle pattern, carry out the line in proper order between 4 bolt holes 3 promptly and form a quadrangle, and bolt hole 3 is located tetragonal apex angle department, and every apex angle department is equipped with a bolt hole 3, and bolt hole 3 adopts evenly distributed's mode to realize the effective connection between knuckle body 1 and wheel hub bearing 4. A groove 2 is arranged between every two adjacent bolt holes 3, and 3 grooves 2 form an annular distribution pattern.
In the embodiment of the invention, the depth of the groove 2 is 0.3mm, and the length is 50mm.
The depth of the groove 2 is 0.3mm, the length of the groove 2 is 50mm, and according to the CAE analysis result, the depth of the groove is defined as 0.3mm, the length of the groove is defined as 50mm, and when a vehicle turns, after the steering knuckle is subjected to axial torsional load, the slight deformation of the groove of the steering knuckle can release space and cannot be in surface contact with the hub bearing 4. CAE analysis is carried out on the steering knuckle after the groove is formed again, in the steering load loading process, no surface-surface separation phenomenon is observed at the joint position of the steering knuckle and the hub bearing 4 close to the bolt, namely, in the steering load applying process, the surface-surface separation condition does not occur on the contact surface (non-groove position) of the steering knuckle body 1 and the hub bearing 4. After the sample piece with the groove on the end face of the steering knuckle is loaded, no abnormal sound occurs in a durable road test of a test field or other road tests of simulation users, and the improvement scheme is effective. Fig. 3 is a schematic view showing the installation of the knuckle body 1 and the hub bearing 4.
Meanwhile, the steering knuckle body 1 is provided with the groove 2, the structural improvement mode is easy to realize through machining of the steering knuckle, and the cost of the whole vehicle is basically unchanged.
According to the cast aluminum steering knuckle for the automobile, disclosed by the embodiment of the invention, the end face, used for being connected with the hub bearing 4, of the steering knuckle body 1 is provided with the plurality of grooves 2, so that after the steering knuckle is subjected to an axial torsional load, a space is released due to slight deformation of the groove of the steering knuckle body 1, the steering knuckle body cannot be in surface contact with the hub bearing 4, the problem of abnormal noise of the binding surface of the steering knuckle and the hub bearing 4 during in-situ or low-speed steering of the automobile is effectively solved, the manufacturing cost of the whole automobile can be effectively controlled, and the additional increase of the manufacturing cost of the whole automobile is avoided.
The automobile provided by the embodiment of the invention comprises a steering knuckle body 1 and a hub bearing 4 which are connected with each other, wherein a plurality of grooves 2 are formed in the end face, connected with the hub bearing 4, of the steering knuckle body 1, and the grooves 2 are distributed on the end face of the steering knuckle body 1 in a surrounding mode.
In the invention, the end face of the groove 2 of the steering knuckle body 1 is provided with a plurality of bolt holes 3 for connecting the steering knuckle body 1 with a hub bearing 4. The grooves 2 are distributed between the bolt holes 3, and at least one groove 2 is arranged between every two adjacent bolt holes 3. The depth of the groove 2 is 0.3mm and the length is 50mm.
By defining the depth of the groove as 0.3mm and the length of the groove as 50mm, the slight deformation of the groove of the knuckle after the knuckle is subjected to an axial torsional load when the vehicle is turned can be released and can not contact with the surface of the hub bearing 4. And performing CAE analysis on the steering knuckle after the groove is formed, wherein in the steering load loading process, no surface-surface separation phenomenon is observed at the joint position of the steering knuckle and the hub bearing 4 close to the bolt. After the sample piece with the groove formed in the end face of the steering knuckle is loaded, abnormal sound does not occur in a durable road test of a test field and other road tests of simulation users, and therefore the improvement scheme is effective.
Through having seted up a plurality of recesses 2 on the terminal surface that is used for being connected with wheel hub bearing 4 at knuckle body 1 to make the knuckle after receiving axial torsional load, the slight deformation that the 1 fluting department of knuckle body received has the space release, can not with wheel hub bearing 4 surface contact, effectively solved the problem of knuckle and wheel hub bearing 4 binding face abnormal sound when the vehicle turns to in situ or at a low speed, and can carry out effective control to the manufacturing cost of whole car.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a cast aluminium knuckle for car which characterized in that: including knuckle body (1), a plurality of recesses (2) have been seted up on knuckle body (1) is used for the terminal surface of being connected with wheel hub bearing (4), and be between a plurality of recesses (2) and encircle the pattern distribute in on the terminal surface of knuckle body (1).
2. The cast-aluminum knuckle for an automobile according to claim 1, characterized in that: the end face of the groove (2) of the steering knuckle body (1) is provided with a plurality of bolt holes (3) for connecting the steering knuckle body (1) with the hub bearing (4).
3. The cast aluminum knuckle for an automobile according to claim 2, wherein: the grooves (2) are distributed among the bolt holes (3), and at least one groove (2) is arranged between every two adjacent bolt holes (3).
4. The cast-aluminum knuckle for an automobile according to claim 3, characterized in that: the number of the bolt holes (3) is 4.
5. The cast-aluminum knuckle for an automobile according to claim 4, wherein: every two adjacent bolt holes (3) are provided with 1 groove (2).
6. The cast aluminum knuckle for an automobile according to any one of claims 1 to 5, characterized in that: the depth of the groove (2) is 0.3mm, and the length of the groove is 50mm.
7. An automobile, characterized in that: knuckle body (1) and wheel hub bearing (4) including interconnect, a plurality of recesses (2) have been seted up on the terminal surface that knuckle body (1) and wheel hub bearing (4) are connected, and be between a plurality of recesses (2) and encircle the pattern distribute in on the terminal surface of knuckle body (1).
8. An automobile as claimed in claim 7, wherein: the end face of the groove (2) of the steering knuckle body (1) is provided with a plurality of bolt holes (3) for connecting the steering knuckle body (1) with the hub bearing (4).
9. An automobile as claimed in claim 8, wherein: the grooves (2) are distributed among the bolt holes (3), and at least one groove (2) is arranged between every two adjacent bolt holes (3).
10. An automobile as claimed in any one of claims 7 to 9, wherein: the depth of the groove (2) is 0.3mm, and the length is 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211139285.8A CN115384616A (en) | 2022-09-19 | 2022-09-19 | Cast aluminum steering knuckle for automobile and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211139285.8A CN115384616A (en) | 2022-09-19 | 2022-09-19 | Cast aluminum steering knuckle for automobile and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115384616A true CN115384616A (en) | 2022-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211139285.8A Pending CN115384616A (en) | 2022-09-19 | 2022-09-19 | Cast aluminum steering knuckle for automobile and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115384616A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115783044A (en) * | 2022-11-30 | 2023-03-14 | 重庆长安新能源汽车科技有限公司 | Knuckle, knuckle and hub bearing mounting structure and car |
| CN117141580A (en) * | 2023-10-31 | 2023-12-01 | 万向智造有限公司 | Vehicle steering knuckle and vehicle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000233764A (en) * | 1999-02-15 | 2000-08-29 | Nissan Diesel Motor Co Ltd | Rear wheel steering lock device for vehicle |
| JP2016044784A (en) * | 2014-08-26 | 2016-04-04 | 日本精工株式会社 | Bearing device for supporting wheel |
| CN207311596U (en) * | 2017-10-27 | 2018-05-04 | 上海汇众汽车制造有限公司 | Spindle |
| CN209492593U (en) * | 2018-11-20 | 2019-10-15 | 蔚来汽车有限公司 | Knuckle and automobile |
| CN210437257U (en) * | 2019-08-22 | 2020-05-01 | 宁波吉利汽车研究开发有限公司 | Steering knuckle |
| CN213138914U (en) * | 2020-10-12 | 2021-05-07 | 北京汽车集团越野车有限公司 | Lightweight knuckle structure and car |
| CN216709415U (en) * | 2021-12-29 | 2022-06-10 | 江西五十铃汽车有限公司 | Maintenance-free hub unit steering knuckle structure |
| CN114802438A (en) * | 2022-03-11 | 2022-07-29 | 中国第一汽车股份有限公司 | Hollow cast aluminum knuckle for double wishbone suspension form |
-
2022
- 2022-09-19 CN CN202211139285.8A patent/CN115384616A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000233764A (en) * | 1999-02-15 | 2000-08-29 | Nissan Diesel Motor Co Ltd | Rear wheel steering lock device for vehicle |
| JP2016044784A (en) * | 2014-08-26 | 2016-04-04 | 日本精工株式会社 | Bearing device for supporting wheel |
| CN207311596U (en) * | 2017-10-27 | 2018-05-04 | 上海汇众汽车制造有限公司 | Spindle |
| CN209492593U (en) * | 2018-11-20 | 2019-10-15 | 蔚来汽车有限公司 | Knuckle and automobile |
| CN210437257U (en) * | 2019-08-22 | 2020-05-01 | 宁波吉利汽车研究开发有限公司 | Steering knuckle |
| CN213138914U (en) * | 2020-10-12 | 2021-05-07 | 北京汽车集团越野车有限公司 | Lightweight knuckle structure and car |
| CN216709415U (en) * | 2021-12-29 | 2022-06-10 | 江西五十铃汽车有限公司 | Maintenance-free hub unit steering knuckle structure |
| CN114802438A (en) * | 2022-03-11 | 2022-07-29 | 中国第一汽车股份有限公司 | Hollow cast aluminum knuckle for double wishbone suspension form |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115783044A (en) * | 2022-11-30 | 2023-03-14 | 重庆长安新能源汽车科技有限公司 | Knuckle, knuckle and hub bearing mounting structure and car |
| CN117141580A (en) * | 2023-10-31 | 2023-12-01 | 万向智造有限公司 | Vehicle steering knuckle and vehicle |
| CN117141580B (en) * | 2023-10-31 | 2024-01-26 | 万向智造有限公司 | Vehicle steering knuckle and vehicle |
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