CN210502860U - High-strength lightweight steering knuckle - Google Patents
High-strength lightweight steering knuckle Download PDFInfo
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- CN210502860U CN210502860U CN201921515123.3U CN201921515123U CN210502860U CN 210502860 U CN210502860 U CN 210502860U CN 201921515123 U CN201921515123 U CN 201921515123U CN 210502860 U CN210502860 U CN 210502860U
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- knuckle
- weight
- transition section
- control arm
- strength
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Abstract
The utility model relates to a high strength lightweight knuckle, including knuckle main part, control arm installation department, the control arm installation department with connect through the changeover portion between the knuckle main part, the changeover portion is from being close to the one end of knuckle main part to the area of the one end longitudinal section of control arm installation department reduces gradually, the upper surface of changeover portion is equipped with certainly the first groove that subtracts that extends to the other end of one end of changeover portion, first subtract heavy groove from being close to the one end of knuckle main part to the one end width of control arm installation department reduces gradually. The steering knuckle is remarkable in light weight effect and high in strength.
Description
Technical Field
The utility model relates to a, especially, relate to a high strength lightweight knuckle
Background
The steering knuckle is one of main parts on an automobile steering axle and is mainly used for stabilizing the running of an automobile and transmitting the running direction. One function of the steering wheel is to effectively transmit the rotation angle value of the steering wheel to the front wheels of the automobile, so as to ensure the safe and ready running of the automobile; the other function is to bear the front load of the automobile, support and drive the front wheel to rotate around the main pin.
In a driving state of an automobile, a steering knuckle is subjected to variable impact loads, and therefore, high strength is required. In order to meet the performance requirement of high strength, the steering knuckle is usually designed to be thicker and heavier, but with the improvement of the requirement of light weight of an automobile, the design of light weight and light weight of parts is more urgent. In the prior art, as shown in a front steering knuckle (1) in chinese design patent publication No. CN305235820S (application No. CN201830757808.3), a front steering knuckle needs to be designed in a further lightweight manner, and in the lightweight design in the prior art, methods such as reducing the thickness of the steering knuckle and reducing the thickness of a reinforcing rib are commonly used, but the strength is often reduced while the lightweight design is carried out, so that a problem of hindering the lightweight development of the steering knuckle is solved. Therefore, a need exists for a steering knuckle that is lightweight while having high strength.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the current situation to prior art provides a high strength lightweight knuckle that has high strength again when lightweight.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a high strength lightweight knuckle, includes knuckle main part, control arm installation department, the control arm installation department with connect through the changeover portion between the knuckle main part, the changeover portion is close to from the one end of knuckle main part to the area of the one end longitudinal section of control arm installation department reduces gradually, the upper surface of changeover portion is equipped with certainly the one end of changeover portion is to the first groove that subtracts of other end extension, first subtract heavy groove from being close to the one end of knuckle main part to the one end width of control arm installation department reduces gradually.
In order to further reduce the weight without influencing the strength of the transition section, the depth of the first weight reduction groove is gradually reduced from one end close to the steering knuckle main body to one end of the control arm mounting part.
In order to reduce stress at a joint by smooth transition of the first weight-reducing groove and the main body part of the steering knuckle, the middle part of the main body of the steering knuckle is provided with a step part which is sunken downwards, a bearing mounting part is arranged on the step part, and the bottom surface of the first weight-reducing groove and the step surface of the step part are in smooth transition.
In order to further reduce the weight, a lower swing arm mounting part is further arranged on the steering knuckle main body, and a second weight reduction groove is further formed between the lower swing arm mounting part and the step part.
In order to reduce weight and have high strength and elongation, corners of the side edge line are rounded, and the length of a first rounded transition section of the side edge line close to the step part is smaller than that of a second rounded transition section of the other side. The inventor finds that the stress is concentrated at the position of the second fillet transition section close to one side of the lower swing arm mounting part through stress analysis, and a longer fillet transition section is required to be used for reducing the stress.
Preferably, the second rounded transition section is a rounded corner or a plurality of rounded corners joined together in a smooth transition.
In order to further reduce weight, a weight reduction hole is further formed in the bottom of the second weight reduction groove.
Compared with the prior art, the utility model has the advantages of: for the steering knuckle of the utility model, the transition section is the part occupying most of the length of the whole part, the structure that the area of the longitudinal section is gradually reduced and the first weight reduction groove is arranged is adopted, the weight can be effectively reduced, and the strength of the transition section can not be influenced because the stress on the part close to the control arm mounting part is smaller; in addition, the transition section structure can be solidified from far to near more easily during casting, and has better casting performance, so that the strength is improved; therefore, the transition section can be further lightened by reducing the thickness of the transition section, and still has higher strength; thus, a high-strength lightweight knuckle having high strength while being lightweight can be obtained.
Drawings
Fig. 1 is a schematic overall structural view of the front surface of a knuckle according to an embodiment of the present invention;
fig. 2 is a schematic view of the overall structure of the back surface of the knuckle according to the embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples.
As shown in fig. 1 to 2, the high-strength lightweight knuckle includes a knuckle body 1; a steering link mounting part 2 and a stabilizer link mounting part 3 extending outward from the knuckle body 1; a caliper mounting hole 4 arranged on the outer edge of the knuckle main body 1; a lower swing arm mounting portion 5 formed on the knuckle body 1; and a control arm mounting part 7 connected to the knuckle body 1 via an arch-shaped transition section 6.
The area of the longitudinal section of the transition section 6 is gradually reduced from one end close to the steering knuckle main body 1 to one end of the control arm mounting part 7, a first weight reducing groove 61 extending from one end of the transition section 6 to the other end is formed in the upper surface of the transition section 6, and the width of the first weight reducing groove 61 is gradually reduced from one end close to the steering knuckle main body 1 to one end of the control arm mounting part 7.
For the steering knuckle of the embodiment, the transition section 6 is a part occupying most of the length of the whole part, the structure that the area of the longitudinal section is gradually reduced and the first weight-reducing groove 61 is arranged is adopted, so that the weight can be effectively reduced, and the strength of the transition section 6 cannot be influenced because the part close to the control arm mounting part 7 is subjected to smaller stress; in addition, the transition section 6 structure can be solidified from far to near in sequence more easily during casting, and has better casting performance, thereby improving the strength.
In order to further reduce the weight without affecting the strength of the transition section 6, the first weight-reducing groove 61 is gradually reduced in depth from the end near the knuckle body 1 to the end of the control arm mounting portion 7.
In order to reduce the stress at the joint by the smooth transition of the first lightening groove 61 and the knuckle main body 1, the middle part of the knuckle main body 1 is provided with a step 11 part which is concave downwards, the step 11 part is provided with a bearing mounting part 11a, and the bottom surface of the first lightening groove 61 and the step surface of the step 11 part are in smooth transition. The bearing mounting portion 11a of the present embodiment includes a bearing fitting hole located in the middle of the step 11, and four bearing mounting holes provided around the bearing fitting hole.
In order to further reduce the weight, the knuckle main body 1 is further provided with a lower swing arm mounting part 5, and a second weight reduction groove 12 is further formed between the lower swing arm mounting part 5 and the step 11 part. In order to further reduce the weight, a weight reduction hole 12a is further provided in the bottom of the second weight reduction groove 12.
In order to reduce weight and have high toughness, corners of the side edge lines are rounded, and the length of a first rounded transition section L1 on one side of the side edge line close to the step 11 part is smaller than that of a second rounded transition section L2 on the other side. The second rounded transition section L2 is a rounded corner or a plurality of rounded corners joined together in a rounded transition. The embodiment is provided with two first fillet transition sections L1 and two second fillet transition sections L2, the two first fillet transition sections L1 can be selected as required to have the same length or different lengths, and the two second fillet transition sections L2 can be selected as required to have the same length or different lengths.
The knuckle of the embodiment is made of an aluminum alloy material, the knuckle is reduced in weight by adopting the transition section 6 with the gradually reduced longitudinal section, the first weight reduction groove 61 and the second weight reduction groove 12, the thickness of the whole knuckle is reduced, and the weight is reduced by more than 40% under the condition that the thickness of the knuckle is reduced by more than 5mm on average.
The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.
Claims (7)
1. The utility model provides a high strength lightweight knuckle, includes knuckle main part (1), control arm installation department (7) with connect its characterized in that through changeover portion (6) between knuckle main part (1): the area of the longitudinal section of the transition section (6) from one end close to the steering knuckle main body (1) to one end of the control arm mounting portion (7) is gradually reduced, a first weight reduction groove (61) extending from one end of the transition section (6) to the other end is formed in the upper surface of the transition section (6), and the width of the first weight reduction groove (61) from one end close to the steering knuckle main body (1) to one end of the control arm mounting portion (7) is gradually reduced.
2. The high-strength lightweight knuckle according to claim 1, wherein the first lightening groove (61) has a depth that gradually decreases from an end near the knuckle body (1) to an end of the control arm mounting portion (7).
3. The high-strength light-weight steering knuckle according to claim 2, characterized in that the middle of the knuckle body (1) is provided with a step (11) portion which is recessed downwards, the step (11) portion is provided with a bearing mounting portion (11a), and the bottom surface of the first weight-reducing groove (61) is in smooth transition with the step surface of the step (11) portion.
4. The high-strength lightweight knuckle according to claim 3, wherein a lower swing arm mounting portion (5) is further provided on said knuckle body (1), and a second weight-reduction groove (12) is further provided between said lower swing arm mounting portion (5) and said step (11).
5. The high-strength light-weight steering knuckle according to claim 4, characterized in that corners of side edge lines of the second lightening grooves (12) are rounded, and the length of a first rounded transition section (L1) close to one side of the step (11) portion is smaller than that of a second rounded transition section (L2) on the other side.
6. The high strength, lightweight knuckle according to claim 5, characterized in that: the second round corner transition section (L2) is formed by one round corner or a plurality of round corners which are in round transition connection with each other.
7. The high-strength lightweight knuckle according to any one of claims 4 to 6, characterized in that: and a lightening hole (12a) is also formed at the bottom of the second lightening groove (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921515123.3U CN210502860U (en) | 2019-09-11 | 2019-09-11 | High-strength lightweight steering knuckle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921515123.3U CN210502860U (en) | 2019-09-11 | 2019-09-11 | High-strength lightweight steering knuckle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210502860U true CN210502860U (en) | 2020-05-12 |
Family
ID=70569494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921515123.3U Active CN210502860U (en) | 2019-09-11 | 2019-09-11 | High-strength lightweight steering knuckle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210502860U (en) |
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2019
- 2019-09-11 CN CN201921515123.3U patent/CN210502860U/en active Active
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