Automobile aluminum alloy front steering knuckle

Abstract

The invention relates to an automobile aluminum alloy front steering knuckle which comprises a steering knuckle body, a weight reduction cavity is formed in the steering knuckle body, and at least one sand discharging hole communicated with the weight reduction cavity is formed in the steering knuckle body in a penetrating mode. The two ends, corresponding to the length direction, of the steering knuckle body are bent in the opposite directions to form bent structures, one bent structure is formed by bending one end of the steering knuckle body towards the upper side, and the other bent structure is formed by bending the other end of the steering knuckle body towards the lower side. And the two bending structures are fixedly connected with reinforcing rib structures. By the adoption of the technical scheme, the technical problems that an existing front steering knuckle is heavy in weight and relatively high in manufacturing cost can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts, and in particular to an automobile aluminum alloy front steering knuckle. Background Art

[0002] The steering knuckle is a major component in the automobile suspension system. Its role and function are to connect the control arm assemblies, install the wheel hub bearing, connect the wheel and the body, transmit and bear the road load received by the tire, and install related wiring harness brackets and other components. During the driving process of the car, the steering knuckle will be impacted by the alternating load, so the steering knuckle is required to have high strength and durability during design.

[0003] The commonly used forming processes for steering knuckles are ductile iron casting and alloy structural steel forging. Cast iron steering knuckles are commonly used in passenger cars. Products manufactured using this process have the advantages of higher material performance and lower cost, but also have the disadvantage of being very heavy. Forged steel steering knuckles are generally used in the field of commercial vehicles. Compared with cast iron steering knuckles, forged steel materials have higher performance and a certain weight reduction effect, but have the disadvantage of being high cost.

[0004] In addition, the existing technology can also use aluminum alloy materials to manufacture steering knuckles. Compared with cast iron steering knuckles and traditional forged steel steering knuckles, although aluminum alloy steering knuckles can achieve weight reduction to a certain extent, the corresponding cost increases. The limited weight reduction and the increase in cost are not conducive to achieving lightweight parts and even the entire vehicle. Summary of the invention

[0005] Aiming at the technical problems that the existing front steering knuckle is heavy and has relatively high manufacturing cost, the present invention provides an automobile aluminum alloy front steering knuckle.

[0006] The technical solution of the present invention to solve the above technical problems is as follows:

[0007] A front steering knuckle of an automobile aluminum alloy comprises a steering knuckle body, a weight-reducing cavity is arranged inside the steering knuckle body, and at least one sand discharge hole connected to the weight-reducing cavity is opened through the steering knuckle body, and the two ends of the steering knuckle body corresponding to the length direction are bent in opposite directions to form a bending structure, one of the bending structures is formed by bending one end of the steering knuckle body toward the upper side, and the other bending structure is formed by bending the other end of the steering knuckle body toward the lower side, and the two bending structures are fixedly connected with a reinforcing rib structure.

[0008] The beneficial effects of the present invention are as follows: by setting a weight-reducing cavity on the steering knuckle body, the weight of the steering knuckle body is reduced, thereby making it have a better lightweight effect and reducing material costs; at the same time, since the weight-reducing cavity is formed in one piece in the steering knuckle body, the overall steering knuckle body is self-contained and has better overall stability, avoiding the problem of difficult to ensure the strength of the joints when the weight-reducing cavity is formed by assembling multiple structures, thereby achieving a lightweight steering knuckle body with better structural strength and structural stability; in addition, by fixing and connecting the reinforcing rib structure at both bending structures, the weight of the steering knuckle body is reduced by the weight-reducing cavity, and the overall strength and rigidity of the steering knuckle body are guaranteed by the reinforcing rib structure.

[0009] Based on the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the reinforcing rib structure includes an upper reinforcing rib arranged at one of the bending structures, and at least one upper reinforcing rib is provided and is integrally formed on the upper side of the steering knuckle body.

[0011] The beneficial effect of adopting the above further solution is that the structural strength of the steering knuckle body is improved by the upper reinforcing ribs, and the upper reinforcing ribs and the steering knuckle body are integrally formed to ensure the stability of the entire steering knuckle body.

[0012] Furthermore, two upper reinforcing ribs are arranged at intervals, and the two upper reinforcing ribs are respectively integrally formed on both sides of the upper side of the steering knuckle body corresponding to the width direction, and a first assembly space structure is formed between the two upper reinforcing ribs.

[0013] The beneficial effect of adopting the above-mentioned further scheme is as follows: by respectively arranging upper reinforcing ribs at both ends of the upper side of the steering knuckle body, the steering knuckle body can better resist deformation and damage when subjected to various forces and moments from the wheels and the road surface, thereby improving the durability and reliability of the steering knuckle body and increasing the rigidity, thereby providing a strong guarantee for the driving stability and safety of the automobile. At the same time, the first assembly space structure formed between the two upper reinforcing ribs facilitates the assembly of other components. The two upper reinforcing ribs are both located at the ends of the steering knuckle body, thereby forming the largest assembly space, making the assembly process smoother, reducing the difficulty and time of assembly, improving production efficiency, and making it easier to disassemble and install related components, thereby reducing the difficulty and cost of maintenance.

[0014] Furthermore, the reinforcing rib structure also includes a lower reinforcing rib arranged at another of the bending structures, and at least one lower reinforcing rib is provided and is integrally formed on the lower side of the steering knuckle body.

[0015] The beneficial effect of adopting the above further solution is that the structural strength of the steering knuckle body is further improved by the lower reinforcing rib, and the lower reinforcing rib and the steering knuckle body are integrally formed, which can further ensure the stability of the entire steering knuckle body.

[0016] Furthermore, two lower reinforcing ribs are arranged at intervals, and the two lower reinforcing ribs are respectively integrally formed on both sides of the upper side of the steering knuckle body corresponding to the width direction, and a second assembly space structure is formed between the two lower reinforcing ribs.

[0017] The beneficial effect of adopting the above further scheme is: by arranging lower reinforcing ribs at both ends of the upper side of the steering knuckle body, the steering knuckle body can better resist deformation and damage when subjected to various forces and moments from the wheels and the road surface, thereby improving the durability and reliability of the steering knuckle body and increasing the rigidity, providing a strong guarantee for the driving stability and safety of the vehicle. At the same time, the second assembly space structure formed between the two lower reinforcing ribs facilitates the assembly of other parts. The two lower reinforcing ribs are both located at the ends of the steering knuckle body, which can form the largest assembly space, making the assembly process smoother, reducing the difficulty and time of assembly, improving production efficiency, and making it easier to disassemble and install related parts, reducing the difficulty and cost of maintenance.

[0018] Furthermore, the sand discharge holes include at least two vertical sand leakage holes, each of which vertically penetrates the upper and lower sides of the steering knuckle body and is connected to the weight reduction cavity, and two of the vertical sand leakage holes are respectively opened at both ends of the steering knuckle body.

[0019] The beneficial effects of adopting the above further scheme are: the opening of the vertical sand leakage hole can further reduce the weight of the steering knuckle body and improve the fuel economy and driving performance of the vehicle; at the same time, the vertical sand leakage hole can be used to timely discharge the sand in the weight-reducing cavity after the steering knuckle body is formed and the debris during use, so as to keep the weight-reducing cavity clean and unobstructed, thereby avoiding problems such as imbalance or vibration of the steering knuckle body caused by sand accumulation; in addition, when the vehicle is driving, air can enter the weight-reducing cavity through the vertical sand leakage hole, providing additional ventilation and heat dissipation conditions for components such as brake discs, thereby ensuring the normal operation of the steering knuckle body and extending its service life.

[0020] Furthermore, the sand discharge hole further comprises at least one transverse sand leakage hole, and each of the transverse sand leakage holes transversely penetrates through both sides of the steering knuckle body in a corresponding width direction and is connected to the weight-reducing cavity.

[0021] The beneficial effects of adopting the above-mentioned further scheme are: the opening of the transverse sand leakage holes can further reduce the weight of the steering knuckle body and improve the fuel economy and driving performance of the vehicle; at the same time, the transverse sand leakage holes can be used to timely discharge the sand in the weight-reducing cavity after the steering knuckle body is formed and the debris during use, so as to keep the weight-reducing cavity clean and unobstructed, thereby avoiding problems such as imbalance or vibration of the steering knuckle body caused by sand accumulation; in addition, when the vehicle is driving, air can enter the weight-reducing cavity through the transverse sand leakage holes, providing additional ventilation and heat dissipation conditions for components such as brake discs, thereby ensuring the normal operation of the steering knuckle body and extending its service life.

[0022] Furthermore, one end of the steering knuckle body in the corresponding length direction is fixedly connected to a lower control arm mounting node, and the other end in the corresponding length direction is fixedly connected to a shock absorber cylinder mounting node, and one side of the steering knuckle body in the corresponding width direction is fixedly connected to a steering rod mounting node, and the other side in the corresponding width direction is fixedly connected to two brake caliper mounting nodes.

[0023] The beneficial effect of adopting the above further scheme is: the steering knuckle body is connected and installed with the transmission half-shaft through the lower control arm mounting node, connected and installed with the shock absorber cylinder through the shock absorber cylinder mounting node, connected and installed with the steering rod through the steering rod mounting node, and connected and installed with the brake caliper through two brake caliper mounting nodes.

[0024] Furthermore, the two brake caliper mounting nodes are simultaneously fixedly connected to at least one transverse rib, and each of the transverse ribs is simultaneously fixedly connected to the steering knuckle body.

[0025] The beneficial effect of adopting the above further solution is: the installation strength of the brake caliper installation node is improved by the transverse ribs, thereby ensuring the stability of the brake caliper connection installation.

[0026] Furthermore, a weight-reducing groove is provided at one end of the steering tie rod mounting node connected to the steering knuckle body.

[0027] The beneficial effect of adopting the above further solution is: the weight of the entire steering knuckle is reduced by the weight-reducing groove, and the quality is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an axonometric view of the automotive aluminum alloy front steering knuckle of the present invention from a first viewing angle, shown as a top view;

[0029] Figure 2 for Figure 1 A cross-sectional view of

[0030] Figure 3 The isometric view of the automotive aluminum alloy front steering knuckle of the present invention from a second viewing angle, shown as a top view;

[0031] Figure 4 It is an axonometric view of the automotive aluminum alloy front steering knuckle of the present invention from a third viewing angle, shown as a bottom-up view.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] 1. Steering knuckle body; 11. Lower arm mounting node; 12. Shock absorber cylinder mounting node; 13. Steering tie rod mounting node; 131. Weight reduction groove; 14. Brake caliper mounting node; 141. Transverse rib; 15. Transmission half shaft mounting hole; 151. Third hole rib; 16. Mounting platform; 161. Connection hole;

[0034] 2. Weight-reducing cavity;

[0035] 3. Vertical sand leakage hole; 31. First hole reinforcement;

[0036] 4. Horizontal sand leakage hole; 41. Second hole reinforcement;

[0037] 5. Upper reinforcement ribs;

[0038] 6. Lower reinforcement ribs. DETAILED DESCRIPTION

[0039] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0040] Example 1

[0041] like Figures 1 to 4 A front steering knuckle of an automobile aluminum alloy comprises a steering knuckle body 1, a weight-reducing cavity 2 is arranged inside the steering knuckle body 1, and at least one sand discharge hole connected to the weight-reducing cavity 2 is opened through the steering knuckle body 1, and the two ends of the steering knuckle body 1 corresponding to the length direction are bent in opposite directions to form a bending structure, one of the bending structures is formed by bending one end of the steering knuckle body 1 toward the upper side, and the other bending structure is formed by bending the other end of the steering knuckle body 1 toward the lower side, and the two bending structures are fixedly connected with a reinforcing rib structure.

[0042] The beneficial effects of this embodiment are as follows: by providing the weight-reducing cavity 2 on the steering knuckle body 1, the weight of the steering knuckle body 1 is reduced, thereby making it have a better lightweight effect and reducing material costs; at the same time, since the weight-reducing cavity 2 is formed in one piece in the steering knuckle body 1, the overall steering knuckle body 1 is self-contained and has better overall stability, thereby avoiding the problem of difficulty in ensuring the strength of the joints when the weight-reducing cavity 2 is formed by assembling multiple structures, thereby achieving a lightweight steering knuckle body 1 with better structural strength and structural stability; in addition, by fixing and connecting the reinforcing rib structure at both bending structures, the weight of the steering knuckle body 1 is reduced by the weight-reducing cavity 2, while the overall strength and rigidity of the steering knuckle body 1 are ensured by the reinforcing rib structure.

[0043] At the same time, since the weight-reducing cavity 2 reduces the thickness of the steering knuckle body 1, the steering knuckle body 1 formed during casting is more accurate in various indicators and easier to form, which is beneficial to reducing casting defects and improving the processing quality of the overall steering knuckle body 1.

[0044] In addition, when manufacturing the steering knuckle body 1, a filling sand core will be arranged on the casting mold, so that the filling sand core can be used to form the weight-reducing cavity 2 when the material of the steering knuckle body 1 is cast, and the filling sand core will be wrapped therein. After the casting of the steering knuckle body 1 is completed, the internal filling sand core can be discharged through the sand discharge hole arranged thereon and connected to the weight-reducing cavity 2, and finally a lightweight steering knuckle body 1 is obtained, thereby promoting the lightweight production of such parts.

[0045] As a specific solution of the above embodiment, the weight-reducing cavity 2 extends along the length direction of the steering knuckle body 1 to ensure that the steering knuckle body 1 has a sufficient degree of weight reduction, thereby improving the lightweight effect of such components and the entire vehicle.

[0046] Based on the above embodiment, the thickness of the two inner walls of the weight-reducing cavity 2 relative to each other in the extension direction of the steering knuckle body 1 is consistent. Specifically, the wall thickness of the upper and lower sides of the steering knuckle body 1 is consistent, and the wall thickness of the left and right sides is consistent, so that the steering knuckle body 1 has better structural stability and improves its strength and safety when in use.

[0047] Specifically, the wall thickness of the upper and lower sides of the knuckle body 1 is a, which can be 3-7 mm, such as 5 mm, and the wall thickness of the left and right sides of the knuckle body 1 is b, which can be 4-10 mm, such as 7 mm, wherein b≥a. Therefore, while the weight of the knuckle body 1 is reduced by the lower wall thickness, the stiffness and lightness of the knuckle body 1 bending along the thickness direction (the connection direction of the upper and lower sides) can be improved by the reinforcing rib structure, and the greater wall thickness of the left and right sides of the knuckle body 1 can be used to improve the strength of the knuckle body 1 along the horizontal direction, thereby improving the durability of the knuckle.

[0048] The thinner wall thickness a makes the steering knuckle body 1 more flexible in the up and down directions, which helps to improve the steering response speed and accuracy, allowing the driver to control the vehicle's driving direction more easily; the thicker wall thickness b enhances the rigidity of the steering knuckle body 1 in the left and right directions, which helps to reduce the roll angle caused by wheel deflection during steering, thereby improving the vehicle's driving stability.

[0049] Example 2

[0050] like Figures 1 to 4 On the basis of Example 1, the reinforcing rib structure includes an upper reinforcing rib 5 arranged at one of the bending structures, at least one upper reinforcing rib 5 is provided and is integrally formed on the upper side of the steering knuckle body 1.

[0051] The beneficial effect of adopting the preferred solution in the above embodiment is that the structural strength of the steering knuckle body 1 is improved by the upper reinforcing rib 5 , and the upper reinforcing rib 5 and the steering knuckle body 1 are integrally formed, which can ensure the stability of the overall steering knuckle body 1 .

[0052] In the embodiment of the present invention, the upper reinforcing rib 5 is a solid structure to ensure its structural strength and increase the bending strength of the steering knuckle body 1. Moreover, the thickness of the upper reinforcing rib 5 is equal to the wall thickness of the upper side of the steering knuckle body 1 to which it is close to ensure the stability of the casting process.

[0053] Example 3

[0054] like Figures 1 to 4 On the basis of embodiments 1 and 2, two upper reinforcing ribs 5 are arranged at intervals, and the two upper reinforcing ribs 5 are respectively integrally formed on both sides of the upper side of the steering knuckle body 1 corresponding to the width direction, and a first assembly space structure is formed between the two upper reinforcing ribs 5.

[0055] The beneficial effect of adopting the preferred scheme in the above embodiment is that, by respectively arranging upper reinforcing ribs 5 at both ends of the upper side of the steering knuckle body 1, the steering knuckle body 1 can better resist deformation and damage when subjected to various forces and moments from the wheels and the road surface, thereby improving the durability and reliability of the steering knuckle body 1 and improving the rigidity, thereby providing a strong guarantee for the driving stability and safety of the automobile. At the same time, the first assembly space structure formed between the two upper reinforcing ribs 5 facilitates the assembly of other parts. The two upper reinforcing ribs 5 are both located at the ends of the steering knuckle body 1, thereby forming the largest assembly space, making the assembly process smoother, reducing the difficulty and time of assembly, improving production efficiency, and making it easier to disassemble and install related parts, thereby reducing the difficulty and cost of maintenance.

[0056] As a parallel solution of this embodiment, the number of the upper reinforcing ribs 5 can also be three, four, five, etc.

[0057] Example 4

[0058] like Figures 1 to 4 On the basis of Examples 1-3, the reinforcing rib structure further includes a lower reinforcing rib 6 arranged at another bending structure, at least one lower reinforcing rib 6 is provided and is integrally formed on the lower side of the steering knuckle body 1.

[0059] The beneficial effect of adopting the preferred solution in the above embodiment is that the structural strength of the steering knuckle body 1 is further improved by the lower reinforcing rib 6 , and the lower reinforcing rib 6 and the steering knuckle body 1 are integrally formed, which can further ensure the stability of the overall steering knuckle body 1 .

[0060] In the embodiment of the present invention, the lower reinforcing rib 6 is a solid structure to ensure its structural strength and increase the bending strength of the steering knuckle body 1. Moreover, the thickness of the lower reinforcing rib 6 is equal to the wall thickness of the lower side of the steering knuckle body 1 to which it is close to ensure the stability of the casting process.

[0061] Example 5

[0062] like Figures 1 to 4 On the basis of embodiments 1-4, two lower reinforcing ribs 6 are arranged at intervals, and the two lower reinforcing ribs 6 are respectively integrally formed on both sides of the upper side of the steering knuckle body 1 corresponding to the width direction, and a second assembly space structure is formed between the two lower reinforcing ribs 6.

[0063] The beneficial effect of adopting the preferred scheme in the above embodiment is that by respectively arranging lower reinforcing ribs 6 at both ends of the upper side of the steering knuckle body 1, the steering knuckle body 1 can better resist deformation and damage when subjected to various forces and moments from the wheels and the road surface, thereby improving the durability and reliability of the steering knuckle body 1 and improving the rigidity, thereby providing a strong guarantee for the driving stability and safety of the automobile. At the same time, the second assembly space structure formed between the two lower reinforcing ribs 6 facilitates the assembly of other parts. The two lower reinforcing ribs 6 are both located at the ends of the steering knuckle body 1, thereby forming the largest assembly space, making the assembly process smoother, reducing the difficulty and time of assembly, improving production efficiency, and making it easier to disassemble and install related parts, thereby reducing the difficulty and cost of maintenance.

[0064] As a parallel solution of this embodiment, the number of the lower reinforcing ribs 6 can also be three, four, five, etc.

[0065] Example 6

[0066] like Figures 1 to 4 On the basis of embodiments 1-5, the sand discharge holes include at least two vertical sand discharge holes 3, each of which vertically penetrates the upper and lower sides of the steering knuckle body 1 and is connected to the weight reduction cavity 2, and two of the vertical sand discharge holes 3 are respectively opened at both ends of the steering knuckle body 1.

[0067] The beneficial effect of adopting the preferred scheme in the above embodiment is that the opening of the vertical sand leakage hole 3 can further reduce the weight of the steering knuckle body 1 and improve the fuel economy and driving performance of the vehicle; at the same time, the vertical sand leakage hole 3 can be used to timely discharge the sand in the weight reduction cavity 2 after the steering knuckle body 1 is formed and the debris during use, so as to keep the weight reduction cavity 2 clean and unobstructed, thereby avoiding the problems such as imbalance or vibration of the steering knuckle body 1 caused by sand accumulation; in addition, when the vehicle is driving, air can enter the weight reduction cavity 2 through the vertical sand leakage hole 3, providing additional ventilation and heat dissipation conditions for components such as brake discs, thereby ensuring the normal operation of the steering knuckle body and extending its service life.

[0068] As a specific solution of the above embodiment, two vertical sand leakage holes 3 are provided, and are respectively opened at two ends of the steering knuckle body 1 in the length direction.

[0069] On the basis of the above-mentioned embodiment, the vertical sand leakage hole 3 close to the other end of the steering knuckle body 1 is opened at the bending part of another bending structure, so as to discharge the sand core filled in the formed weight-reducing cavity 2 faster and more fully; at the same time, the vertical sand leakage hole 3 located at the corner allows more air to enter the weight-reducing cavity 2 through the vertical sand leakage hole 3 during the driving process of the vehicle, providing additional ventilation and heat dissipation conditions for components such as the brake disc, thereby ensuring the normal operation of the steering knuckle body and extending its service life.

[0070] On the basis of the above embodiment, a first hole rib 31 is integrally formed at the opening of each vertical sand leakage hole 3. The first hole rib 31 has a thickness of 2-3 mm and a width of 2-4 mm to improve the local structural strength.

[0071] Example 7

[0072] like Figures 1 to 4 On the basis of embodiments 1-6, the sand discharge hole further includes at least one transverse sand leakage hole 4, each transverse sand leakage hole 4 transversely penetrates both sides of the steering knuckle body 1 corresponding to the width direction, and is connected to the weight reduction cavity 2.

[0073] The beneficial effect of adopting the preferred scheme in the above embodiment is that the opening of the transverse sand leakage hole 4 can further reduce the weight of the steering knuckle body 1, improve the fuel economy and driving performance of the vehicle; at the same time, the transverse sand leakage hole 4 can be used to timely discharge the sand in the weight-reducing cavity 2 after the steering knuckle body 1 is formed and the sundries in the use process, so as to keep the weight-reducing cavity 2 clean and unobstructed, thereby avoiding the problems such as imbalance or vibration of the steering knuckle body 1 caused by the accumulation of sand; in addition, when the vehicle is driving, air can enter the weight-reducing cavity 2 through the transverse sand leakage hole 4, providing additional ventilation and heat dissipation conditions for components such as the brake disc, thereby ensuring the normal operation of the steering knuckle body and extending its service life. .

[0074] On the basis of the above embodiment, second hole ribs 41 are integrally formed at both openings of each transverse sand leakage hole 4. The second hole ribs 41 have a thickness of 2-3 mm and a width of 2-4 mm to improve the local structural strength.

[0075] Example 8

[0076] like Figures 1 to 4 On the basis of Examples 1-7, a lower control arm mounting node 11 is fixedly connected to one end of the steering knuckle body 1 in the corresponding length direction, a shock absorber cylinder mounting node 12 is fixedly connected to the other end of the steering knuckle body 1 in the corresponding length direction, and a steering rod mounting node 13 is fixedly connected to one side of the steering knuckle body 1 in the corresponding width direction, and two brake caliper mounting nodes 14 are fixedly connected to the other side in the corresponding width direction.

[0077] The beneficial effect of adopting the preferred scheme in the above embodiment is that the steering knuckle body 1 is connected and installed with the lower control arm through the lower control arm mounting node 11, connected and installed with the shock absorber cylinder through the shock absorber cylinder mounting node 12, connected and installed with the steering rod through the steering rod mounting node 13, and connected and installed with the brake caliper through two brake caliper mounting nodes 14.

[0078] On the basis of the above embodiment, a transmission half-shaft mounting hole 15 is vertically opened at one of the bending structures of the steering knuckle body 1 to achieve connection and installation between the transmission half-shaft and the steering knuckle body 1 through the transmission half-shaft mounting hole 15 .

[0079] The two openings of the transmission half-shaft mounting hole 15 are integrally formed with third hole ribs 151 . The thickness of the third hole ribs 151 is 2-3 mm and the width is 2-4 mm, so as to improve the local structural strength.

[0080] Mounting platforms 16 are fixed on both the left and right sides and the lower side of the steering knuckle body 1 , and the mounting platforms 16 are provided with connecting holes 161 to realize the connection and installation of other hand parts.

[0081] Example 9

[0082] like Figures 1 to 4 On the basis of embodiments 1-8, the brake caliper mounting node 14 is also fixedly connected to at least one transverse rib 141 , and each transverse rib 141 is also fixedly connected to the steering knuckle body 1 .

[0083] The beneficial effect of adopting the preferred solution in the above embodiment is that the installation strength of the brake caliper installation node 14 is improved by the transverse rib 141, thereby ensuring the stability of the connection installation of the brake caliper.

[0084] Based on the above embodiment, two transverse ribs 141 are arranged at intervals, and the wall thickness of the transverse rib 141 is kept equal to the left wall thickness of the connected steering knuckle body 1 to ensure the structural strength and casting quality of the installation point and ensure the molding stability.

[0085] Example 10

[0086] like Figures 1 to 4 On the basis of Embodiment 1-9, a weight-reducing groove 131 is provided at one end of the steering tie rod mounting node 13 connected to the steering knuckle body 1 .

[0087] The beneficial effect of adopting the preferred solution in the above embodiment is that the weight of the entire steering knuckle is reduced through the weight-reducing groove 131, while the quality is guaranteed.

[0088] Based on the above embodiment, the wall thickness of the weight-reducing groove 131 is equal to the wall thickness of the right side of the steering knuckle body 1 to which it is connected, so as to ensure the structural strength and casting quality of the mounting point and ensure the molding stability.

[0089] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0090] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0091] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0092] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0093] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0094] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An automotive aluminum alloy front steering knuckle, comprising a steering knuckle body (1), characterized in that: A weight-reducing cavity (2) is arranged inside the steering knuckle body (1), and at least one sand discharge hole connected to the weight-reducing cavity (2) is formed through the steering knuckle body (1). The two ends of the steering knuckle body (1) in the corresponding length direction are bent in opposite directions to form a bending structure, one of the bending structures is formed by bending one end of the steering knuckle body (1) toward the upper side, and the other bending structure is formed by bending the other end of the steering knuckle body (1) toward the lower side, and both bending structures are fixedly connected to a reinforcing rib structure.

2. The automotive aluminum alloy front steering knuckle according to claim 1, characterized in that: The reinforcing rib structure comprises an upper reinforcing rib (5) arranged at one of the bending structures, at least one upper reinforcing rib (5) is provided and is integrally formed on the upper side of the steering knuckle body (1).

3. The automotive aluminum alloy front steering knuckle according to claim 2, characterized in that: Two upper reinforcing ribs (5) are arranged at intervals, and the two upper reinforcing ribs (5) are respectively integrally formed on both sides of the upper side of the steering knuckle body (1) corresponding to the width direction, and a first assembly space structure is formed between the two upper reinforcing ribs (5).

4. The automotive aluminum alloy front steering knuckle according to claim 1, characterized in that: The reinforcing rib structure further comprises a lower reinforcing rib (6) arranged at another of the bending structures, at least one lower reinforcing rib (6) is provided and is integrally formed on the lower side of the steering knuckle body (1).

5. The automotive aluminum alloy front steering knuckle according to claim 4, characterized in that: Two lower reinforcing ribs (6) are arranged at intervals, and the two lower reinforcing ribs (6) are respectively integrally formed on both sides of the upper side of the steering knuckle body (1) corresponding to the width direction, and a second assembly space structure is formed between the two lower reinforcing ribs (6).

6. The automotive aluminum alloy front steering knuckle according to claim 1, characterized in that: The sand discharge holes include at least two vertical sand leakage holes (3), each of the vertical sand leakage holes (3) vertically penetrates the upper and lower sides of the steering knuckle body (1) and is connected to the weight reduction cavity (2), and two of the vertical sand leakage holes (3) are respectively opened at the two ends of the steering knuckle body (1).

7. The automotive aluminum alloy front steering knuckle according to claim 6, characterized in that: The sand discharge holes further include at least one transverse sand leakage hole (4), each of the transverse sand leakage holes (4) transversely penetrating the two sides of the steering knuckle body (1) corresponding to the width direction and connected to the weight reduction cavity (2).

8. The automotive aluminum alloy front steering knuckle according to any one of claims 1 to 7, characterized in that: The steering knuckle body (1) is fixedly connected to a lower swing arm mounting node (11) at one end in the corresponding length direction, and is fixedly connected to a shock absorber cylinder mounting node (12) at the other end in the corresponding length direction; and the steering knuckle body (1) is fixedly connected to a steering rod mounting node (13) at one side in the corresponding width direction, and is fixedly connected to two brake caliper mounting nodes (14) at the other side in the corresponding width direction.

9. The automotive aluminum alloy front steering knuckle according to claim 8, characterized in that: The two brake caliper mounting nodes (14) are simultaneously fixedly connected to at least one transverse rib (141), and each transverse rib (141) is simultaneously fixedly connected to the steering knuckle body (1).

10. The automotive aluminum alloy front steering knuckle according to claim 8, characterized in that: A weight-reducing groove (131) is provided at one end of the steering tie rod mounting node (13) connected to the steering knuckle body (1).

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