Steering knuckle and vehicle

Abstract

The steering knuckle comprises a main body, the main body is provided with a bearing installation area, the two sides, in the first direction of the bearing installation area, of the main body are provided with a running caliper installation part and a parking caliper installation part respectively, and the two sides, in the second direction, of the main body are provided with a plurality of control arm connecting parts; the travelling crane calipers are mounted on the travelling crane calipers mounting part in the first direction, and the parking calipers are mounted on the parking calipers mounting part in the third direction; wherein a peripheral part is formed among the bearing mounting area, the plurality of control arm connecting parts, the running caliper mounting part and the parking caliper mounting part, the peripheral part comprises a weight reduction cavity formed by sand core casting, and a sand discharge hole is formed in the peripheral part. According to the steering knuckle disclosed by the utility model, on the basis of ensuring that the steering knuckle is provided with a plurality of control arm connecting parts, a traveling caliper mounting part, a parking caliper mounting part and the like, the steering knuckle structure of the cavity formed by the sand core is arranged in the main body of the steering knuckle, so that the weight is reduced, and the casting cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a steering knuckle and a vehicle. Background Art

[0002] Common chassis structures in automotive design include McPherson independent suspension, double wishbone suspension, multi-link independent suspension, and torsion beam suspension. Five-link independent suspension is commonly used in mid- to high-end vehicles, and the steering knuckle is an essential component. With increasingly stringent energy conservation and emission reduction requirements and the growing demand for longer-range driving in new energy vehicles, traditional cast iron can no longer meet the demand for lightweight chassis. Lightweight materials such as aluminum alloys and related manufacturing processes are increasingly being successfully applied to steering knuckles, leading to the emergence of aluminum alloy steering knuckles.

[0003] The steering knuckles currently on the market are heavy and have high forging costs, making it difficult to simultaneously meet the requirements of lightweighting and cost reduction. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a steering knuckle structure that reduces weight and casting costs by providing a sand core inside the steering knuckle body to form a cavity.

[0005] According to the steering knuckle of the embodiment of the present invention, it includes: a main body, the main body is provided with a bearing mounting area, the main body is provided with a driving caliper mounting part and a parking caliper mounting part on both sides of the first direction of the bearing mounting area, and is provided with a plurality of control arm connecting parts on both sides of the second direction, the driving caliper is installed on the driving caliper mounting part along the first direction, and the parking caliper is installed on the parking caliper mounting part along the third direction; wherein, an outer portion is formed between the bearing mounting area and the plurality of control arm connecting parts, the driving caliper mounting part and the parking caliper mounting part, the outer portion includes a weight-reducing cavity formed by sand core casting, and the outer portion is provided with sand discharge holes.

[0006] According to the steering knuckle of the embodiment of the present invention, on the basis of ensuring that the steering knuckle is provided with a plurality of control arm connecting parts and a driving caliper mounting part, a parking caliper mounting part, etc., the outer portion of the main body is provided with a weight-reducing cavity, and the weight-reducing cavity is provided with a sand discharge hole, that is, the weight-reducing cavity of the outer portion is formed by a sand core, which can reduce the weight of the steering knuckle, and the casting molding cost is lower than the forging molding cost, and the sand discharge hole can form a hole for discharging the sand core by the sand core casting molding, and can also reduce the weight of the steering knuckle.

[0007] According to the steering knuckle of an embodiment of the present invention, the bearing mounting area is recessed toward one side relative to the outer portion to form a groove, and the outer side wall of the groove is provided with a wheel speed sensor mounting hole, which protrudes along the outer side of the groove toward the inner side of the groove.

[0008] According to the steering knuckle of an embodiment of the present invention, an avoidance hole and a plurality of bearing mounting holes are provided in the groove, and the plurality of bearing mounting holes are located around the avoidance hole. The bearing mounting hole is used to install the wheel hub bearing, and the avoidance hole is used to avoid the protruding part of the wheel hub. A drainage groove is provided on the back side of the groove and on one side close to the wheel hub, and the drainage groove extends radially along the outer circumference of the avoidance hole.

[0009] According to the steering knuckle of the embodiment of the present invention, some of the plurality of control arm connecting parts are an upper front arm connecting ear, an upper rear arm connecting ear, a lower front arm connecting ear and a lower rear arm connecting ear;

[0010] The upper forearm connecting ear and the upper rear arm connecting ear are located on one side of the driving caliper mounting portion along the second direction, and the lower forearm connecting ear and the lower rear arm connecting ear are located on the other side of the driving caliper mounting portion along the second direction.

[0011] According to the steering knuckle of the embodiment of the present invention, the upper forearm connecting ear is provided with an upper forearm mounting bushing and the upper rear arm connecting ear is provided with an upper rear arm mounting bushing, and the upper forearm mounting bushing is located on the lower side of the upper rear arm mounting bushing.

[0012] According to the steering knuckle of the embodiment of the present invention, the lower forearm connecting ear is provided with a lower forearm mounting bushing, and the lower rear arm connecting ear is provided with a lower rear arm mounting bushing, a stabilizer bar connecting position and a shock absorber mounting bushing arranged at intervals.

[0013] According to the steering knuckle of the embodiment of the present invention, one of the plurality of control arm connecting portions is a front toe arm mounting portion, and the front toe arm mounting portion is configured as a mounting groove open toward the front side of the vehicle.

[0014] According to the steering knuckle of the embodiment of the present invention, the mounting groove is provided with an internal thread, and the mounting groove is threadedly connected to the toe arm via a bolt.

[0015] According to the steering knuckle of the embodiment of the present invention, the wall thickness of the peripheral portion formed in the weight-reducing cavity is a, and satisfies: 5mm≤a≤15mm.

[0016] An embodiment of the utility model further discloses a vehicle, comprising the above-mentioned steering knuckle.

[0017] The advantages of the vehicle described above over the prior art are the same as those of the steering knuckle described above over the prior art, which will not be described in detail here.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic structural diagram of the steering knuckle of an embodiment of the present invention facing the outer side of the vehicle;

[0021] Figure 2 This is a schematic structural diagram of the steering knuckle of an embodiment of the present invention facing the inner side of the vehicle;

[0022] Reference numerals:

[0023] Steering knuckle 100,

[0024] Main body 1, outer portion 11, sand discharge hole 111, bearing mounting area 12, bearing mounting hole 121, avoidance hole 122, upper rear arm connecting ear 2, upper rear arm connecting hole 21, upper forearm connecting ear 3, upper forearm connecting hole 31, parking caliper mounting part 4, parking first mounting part 41, parking first mounting hole 411, parking second mounting part 42, parking second mounting hole 421, toe arm mounting part 5, mounting groove 51, driving caliper mounting part 6, driving first mounting part 61, driving second mounting part 62, lower rear arm connecting ear 7, stabilizer bar connecting hole 71, shock absorber connecting hole 72, lower rear arm connecting hole 73, lower forearm connecting ear 8, lower forearm connecting hole 81, drainage groove 9, wheel speed sensor mounting hole 10. DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0026] Refer to the following Figure 1 and Figure 2 A structural schematic diagram of the steering knuckle 100 according to an embodiment of the present invention is described. On the basis of ensuring that the steering knuckle 100 is provided with a plurality of control arm connecting parts and a driving caliper mounting part 6, a parking caliper mounting part 4, etc., a sand core is provided inside the main body 1 of the steering knuckle 100 to form a cavity of the steering knuckle 100, thereby reducing the weight and lowering the casting cost.

[0027] like Figure 1 and Figure 2As shown, the embodiment of the present invention discloses a steering knuckle 100 , which includes a main body 1 .

[0028] Among them, the main body 1 is provided with a bearing mounting area 12, and the main body 1 is respectively provided with a driving caliper mounting part 6 and a parking caliper mounting part 4 on both sides of the first direction of the bearing mounting area 12, and is provided with multiple control arm connecting parts on both sides of the second direction. The driving caliper is installed on the driving caliper mounting part 6 along the first direction, and the parking caliper is installed on the parking caliper mounting part 4 along the third direction; an outer portion 11 is formed between the bearing mounting area 12 and the multiple control arm connecting parts, the driving caliper mounting part 6 and the parking caliper mounting part 4, and the outer portion 11 includes a weight-reducing cavity formed by sand core casting, and the outer portion 11 is provided with a sand discharge hole 111.

[0029] In practice, the steering knuckle 100 is a key component on a vehicle's steering axle, enabling stable driving and sensitively transmitting driving direction. Its primary function is to connect the vehicle body and wheels, transmitting impact and friction from the road during driving. It withstands variable impact loads, requiring high strength. The steering knuckle 100 has multiple control arm connections, each connected to a control arm that supports, positions, and transmits force. For example, uneven road surfaces during driving can cause impact and vibration, which the control arm absorbs, reducing direct impact on the vehicle body and improving ride comfort.

[0030] If the driving caliper is installed on the main body 1 along the rear of the vehicle through the driving caliper mounting portion 6, the parking caliper is set on the steering knuckle 100 along the front of the vehicle, and the wheel hub bearing is installed in the bearing mounting area 12. When the driving caliper is at the rear of the steering knuckle 100, the wheel hub bearing will be subjected to an upward lifting force when braking, which helps to reduce the load on the wheel hub bearing and thus extend the service life of the wheel hub bearing; the parking caliper will apply a downward force to the wheel hub bearing when braking, which helps to improve the vehicle's handling stability and response speed. In addition, the steering knuckle 100 is installed on one side of the vehicle's brake disc axial direction, and the axial direction of the brake disc is the same as the axial direction of the wheel. In practice, the steering knuckle 100 is installed on the inner side of the brake disc axial direction and along the width direction of the vehicle. The driving caliper is installed on the steering knuckle 100 along the radial direction of the brake disc, and the parking caliper is installed on the steering knuckle 100 along the axial direction of the brake disc or the wheel. Compared with the design of traditional models in which the driving caliper and the parking caliper share a set of structures, this solution physically decouples the driving and parking functions, can give full play to the braking ability of the caliper, and effectively improves the safety performance of the vehicle.

[0031] Figure 1In the embodiment, when the steering knuckle 100 is connected to the vehicle, the driving caliper mounting portion 6 and the driving caliper are docked and installed along the front-rear direction of the vehicle, and the parking caliper can be connected to the parking caliper mounting portion 4 along the inner and outer directions in the vehicle width direction, and the parking caliper mounting portion 4 includes a first parking mounting portion 41 and a second parking mounting portion 42, the first parking mounting portion 41 is provided with a first parking mounting hole 411, and the second parking mounting portion 42 is provided with a second parking mounting hole 421, that is, connected to the first parking mounting portion 41 and the second parking mounting portion 42 along the inner and outer directions in the vehicle width direction; the driving caliper mounting portion 6 includes a first driving mounting portion 61 and a second driving mounting portion 62, that is, the driving caliper is connected to the first driving mounting portion 61 and the second driving mounting portion 62 along the first direction, and the first direction is Figure 1 The front and rear direction, the second direction is Figure 1 The third direction is the inner and outer direction of the steering knuckle 100 along the width direction of the vehicle after the steering knuckle 100 is installed on the vehicle, which is equivalent to the axial direction of the wheel or brake disc, that is, Figure 1 The front view is the inner side, Figure 2 The front view is the outside, which improves space utilization and installation convenience.

[0032] The area between the bearing mounting area 12 and the multiple control arm connecting parts and the driving caliper mounting part 6 and the parking caliper mounting part 4 is called the peripheral part 11. A cavity is provided in the peripheral part 11, which can effectively reduce the overall weight of the steering knuckle 100. The cavity can be formed by a sand core. The function of the sand core is to form a cavity in the casting and is fixed at a specific position in the sand mold. After the pouring is completed, the sand core is discharged through the sand discharge hole 111, thereby forming a cavity structure of the peripheral part 11.

[0033] The cavity formed by the injection of sand cores into the outer portion 11 allows for more precise machining of the steering knuckle 100, meeting the wheel alignment accuracy requirements during vehicle operation. Furthermore, the easy installation and replacement of sand cores enhances machining flexibility. The relatively simple sand core casting process reduces manufacturing costs and allows for production tailored to specific needs, further reducing costs. This allows for the production of steering knuckles 100 in a variety of sizes and shapes, meeting the needs of various vehicle models. Furthermore, the entire steering knuckle is constructed of aluminum alloy, ensuring both strength and lightweight performance.

[0034] Therefore, the steering knuckle 100 of the embodiment of the present invention, on the basis of ensuring that the steering knuckle 100 is provided with a plurality of control arm connecting parts and the driving caliper mounting part 6, the parking caliper mounting part 4, etc., is provided with a sand core inside the main body 1 of the steering knuckle 100 to form a cavity steering knuckle 100 structure, thereby reducing weight and reducing casting costs.

[0035] In some embodiments, the bearing mounting area 12 is recessed relative to the outer portion 11 toward one side to form a groove, and the outer wall of the groove is provided with a wheel speed sensor mounting hole 10 , which protrudes along the outer side of the groove toward the inner side of the groove.

[0036] Reference Figure 1 As shown, the bearing mounting area 12 is Figure 1 The groove in the square area in the middle is provided to facilitate connection with the wheel hub bearing in the bearing mounting area 12 and reduce the weight of the main body 1; in addition, a wheel speed sensor mounting hole 10 is provided on the outer wall of the groove. The wheel speed sensor mounting hole 10 is open toward the front and is used to connect the wheel speed sensor, saving space outside the main body 1. The wheel speed sensor mounting hole 10 can also reduce the weight of the main body 1.

[0037] In some embodiments, an avoidance hole 122 and multiple bearing mounting holes 121 are provided in the groove. The multiple bearing mounting holes 121 are located around the avoidance hole 122. The bearing mounting hole 121 is used to install the wheel hub bearing, and the avoidance hole 122 is used to avoid the protruding part of the wheel hub. A drainage groove 9 is provided on the back side of the groove and on the side close to the wheel hub. The drainage groove 9 extends radially along the outer periphery of the avoidance hole 122.

[0038] Reference Figure 1 As shown, first, a groove is set in the bearing installation area 12, and a plurality of bearing installation holes 121 are set in the groove. Bolts are passed through the bearing installation holes 121 to connect with the vehicle's wheel hub bearing, thereby improving the stability of the connection between the wheel hub bearing and the steering knuckle 100. There is also an avoidance hole 122 in the groove. When the steering knuckle 100 is installed on the vehicle, Figure 2 The front side is close to the outer side in the transverse direction of the vehicle. By providing an avoidance hole 122 in the area surrounded by multiple bearing mounting holes 121, the setting of the avoidance hole 122 can prevent the inner convex part between the steering knuckle 100 and the wheel hub from interfering with each other.

[0039] In addition, radially extending drainage grooves 9 are provided on the periphery of the avoidance hole 122. When external rainwater or water entering the wheel hub bearings when the vehicle is traveling on a flooded road section enters the wheel hub bearings, the water can be drained through the drainage grooves 9, preventing the water from entering the wheel hub bearings and causing rust, lubrication failure, and wheel hub bearing rotation jamming, which in serious cases affect the vehicle's driving stability and safety. In other words, the provision of drainage grooves 9 can better drain water, preventing the water from affecting the wheel hub bearings and causing the aforementioned problems, and also extending the service life of the wheel hub bearings.

[0040] In some embodiments, part of the multiple control arm connecting parts is the upper forearm connecting ear 3, the upper rear arm connecting ear 2, the lower forearm connecting ear 8 and the lower rear arm connecting ear 7; the upper forearm connecting ear 3 and the upper rear arm connecting ear 2 are located on one side of the driving caliper mounting part 6 along the second direction, and the lower forearm connecting ear 8 and the lower rear arm connecting ear 7 are located on the other side of the driving caliper mounting part 6 along the second direction.

[0041] In practice, the upper forearm connecting ear 3 is provided with an upper forearm connecting hole 31 for connecting the upper forearm; the upper rear arm connecting ear 2 is provided with an upper rear arm connecting hole 21 for connecting the upper rear arm; the lower forearm connecting ear 8 is provided with a lower forearm connecting hole 81 for connecting the lower forearm, and the lower rear arm connecting ear 7 is provided with a lower rear arm connecting hole 73 for connecting the lower rear arm.

[0042] The upper front arm is connected to the wheel hub and the vehicle body, primarily controlling the up and down movement of the wheel, ensuring vertical wheel movement and vehicle stability. This ensures the vehicle maintains stable height during driving, reduces bumps and vibrations, and thus improves ride comfort and vehicle handling. The upper rear arm also connects the wheel hub and the vehicle body, but its primary function is to support the suspension, separating longitudinal and lateral movement, allowing the wheel to be well fixed on the motion plane and ensuring vehicle stability. The design of the upper rear arm helps reduce vehicle roll during cornering, improving vehicle handling and stability.

[0043] The lower front arm is part of the vehicle's suspension system. It connects the wheel hub and the vehicle body, ensuring that the wheel can move up and down around the center axis, thereby ensuring that the wheel can move smoothly in the vertical direction, reducing bumps and vibrations, and improving ride comfort; the lower rear arm supports the entire suspension system, separating longitudinal and lateral movement, so that the wheel can be well fixed on the movement plane, ensuring the stability of the vehicle body; in addition, during braking or acceleration, the lower rear arm can fix the longitudinal position of the wheel to prevent the wheel from shifting sideways, thereby improving steering accuracy and vehicle stability.

[0044] That is, the positional relationship between the upper forearm connecting ear 3, the upper rear arm connecting ear 2, the lower forearm connecting ear 8, the lower rear arm connecting ear 7 and the driving caliper mounting portion 6 can be reasonably arranged and can play their respective main functions.

[0045] In some embodiments, the upper forearm connecting ear 3 is provided with an upper forearm mounting bushing and the upper rear arm connecting ear 2 is provided with an upper rear arm mounting bushing, and the upper forearm mounting bushing is located on the lower side of the upper rear arm mounting bushing.

[0046] The upper forearm is connected to the upper forearm connecting hole 31 by means of an upper forearm mounting bushing and a connecting shaft, and the upper rear arm is connected to the upper rear arm connecting hole 21 by means of an upper rear arm mounting bushing and a connecting shaft. The bushing provides an elastic connection between the steering knuckle 100 and the upper forearm and the upper rear arm, which can absorb and reduce vibration and impact, thereby improving the comfort and stability of the vehicle.

[0047] Furthermore, the elastic connection ensures smooth wheel movement under all road conditions, reducing the jerking sensation caused by uneven surfaces. The use of bushings reduces direct friction between the steering knuckle 100 and the control arm, thereby extending the service life of the components. Since bushings are typically made of rubber or other wear-resistant materials, they protect the interconnection from wear to a certain extent, reducing the frequency of maintenance and replacement. The bushings provide a fulcrum for the steering knuckle 100 and control arm, enabling them to move smoothly and transmit steering force. This design ensures vehicle stability and accuracy during steering.

[0048] The upper forearm mounting bushing is located on the lower side of the upper rear arm mounting bushing, which can avoid interference between the upper forearm and the upper rear arm, and can facilitate the connection of the upper forearm at the upper forearm connecting ear 3, and at the same time facilitate the connection of the upper rear arm at the upper rear arm connecting ear 2.

[0049] In some embodiments, the lower forearm connecting ear 8 is provided with a lower forearm mounting bushing, and the lower rear arm connecting ear 7 is provided with a lower rear arm mounting bushing, a stabilizer bar connecting position and a shock absorber mounting bushing that are spaced apart.

[0050] In practice, the lower forearm connecting ear 8 is provided with a lower forearm connecting hole 81 for connecting the lower forearm. By setting a lower forearm mounting bushing, it can also absorb and reduce vibration and impact, and at the same time, protect the mutual connections from wear.

[0051] The lower rear arm connecting ear 7 is provided with a lower rear arm connecting hole 73, a stabilizer bar connecting hole 71 and a shock absorber connecting hole 72 which are arranged at intervals. The lower rear arm connecting hole 73 is correspondingly provided with a lower rear arm mounting bushing, the stabilizer bar connecting hole 71 is the stabilizer bar connection position, and the shock absorber connecting hole 72 is provided with a shock absorber mounting bushing. The shock absorber mounting bushing is used to connect the lower end of the shock absorber through a connecting shaft. The lower rear arm is connected to the steering knuckle 100 through the lower rear arm mounting bushing and the connecting shaft, and the stabilizer bar is also connected to the steering knuckle 100 by passing the stabilizer bar connecting hole 71 through the connecting shaft. The stabilizer bar of the vehicle can prevent the vehicle body from excessive lateral tilt when turning, thereby avoiding lateral tipping of the vehicle and improving the smoothness of driving.

[0052] By sharing the lower rear arm connecting ear 7 of the steering knuckle 100, the stabilizer bar connecting position and the shock absorber mounting bushing, that is, sharing the same machining plane, the machining process is reduced, the manufacturing cost of parts is reduced, and the production efficiency is improved.

[0053] It should be noted that the minimum wall thickness of the upper forearm connecting hole 31, the upper rear arm connecting hole 21, the lower forearm connecting hole 81, the lower rear arm connecting hole 73 and the shock absorber connecting hole 72 of the steering knuckle 100 is 8 mm, which can improve the connection strength, and the corresponding bushings at the upper forearm connecting hole 31, the upper rear arm connecting hole 21, the lower forearm connecting hole 81, the lower rear arm connecting hole 73 and the shock absorber connecting hole 72 are all designed with aluminum alloy. Compared with traditional steel bushings, aluminum bushings can reduce weight by about 30% and have a better strength level.

[0054] In some embodiments, one of the plurality of control arm connecting portions is a front toe arm mounting portion 5 , which is configured as a mounting slot 51 open toward the front side of the vehicle.

[0055] In practice, the toe-arm mounting portion 5 of the steering knuckle 100 is used to mount the toe-arm, which is an important component in the automobile steering system. Its main function is to adjust the toe value of the wheel. Toe refers to the difference in distance between the wheel forward and backward in the transverse plane. It is usually used to ensure that the wheel maintains the correct angle during driving, reduce tire wear, and improve driving stability and controllability. The toe-arm mounting portion 5 is a mounting groove 51 open to the front side, which facilitates a stable connection with the toe-arm.

[0056] In some embodiments, mounting slot 51 is internally threaded and is threadedly connected to the toe arm via bolts. The toe arm, corresponding to mounting slot 51 on steering knuckle 100, is designed as a cantilever beam. Mounting slot 51 has pre-machined threads, and the toe arm is directly bolted to mounting slot 51 on steering knuckle 100. This design eliminates the need for nuts, reduces suspension weight, and simplifies assembly.

[0057] At the same time, the mounting groove 51 of the toe arm is close to the lower forearm connecting ear 8. The mounting groove 51 is arranged on the outer portion 11 and protrudes from the lower cavity, which can effectively enhance the lateral stiffness and ensure that the toe changes little when the vehicle is subjected to lateral force, which is beneficial to the driving stability of the vehicle.

[0058] In some embodiments, the peripheral portion 11 is formed in the weight-reducing cavity with a wall thickness a, and satisfies: 5 mm ≤ a ≤ 15 mm.

[0059] That is, the minimum wall thickness of the weight-reducing cavity is 5 mm, which can reduce the weight of the steering knuckle 100 while meeting the strength requirements. Figure 1In the figure, the weight-reducing cavity has an upper cavity close to the upper forearm connecting ear 3 and the upper rear arm connecting ear 2, and also has a lower cavity close to the lower forearm connecting ear 8 and the lower rear arm connecting ear 7. The upper cavity and the lower cavity are connected by left and right reinforcing ribs. The reinforcing ribs along the rear side of the vehicle are connected to the driving caliper mounting part 6, and the reinforcing ribs along the front side of the vehicle are connected to the parking caliper mounting part 4. The two reinforcing ribs have the function of strengthening the strength of the steering knuckle 100. After analysis, under the premise of meeting the CAE analysis results, the hollow cast aluminum steering knuckle 100 can achieve a weight reduction effect of more than 25% compared with the forged aluminum steering knuckle 100.

[0060] The upper cavity, lower cavity, left reinforcing ribs and right reinforcing ribs increase the force-bearing cross-sectional area of ​​the parking caliper mounting portion 4, the driving caliper mounting portion 6 and the connecting portions of multiple control arms, effectively ensuring the stiffness of adjacent parts such as each control arm when under load, and improving the handling performance of the entire vehicle.

[0061] An embodiment of the present utility model further discloses a vehicle, comprising the above-mentioned steering knuckle 100. On the basis of ensuring that the steering knuckle 100 is provided with a plurality of control arm connecting parts, a driving caliper mounting part 6, a parking caliper mounting part 4, etc., a sand core is provided inside the main body 1 of the steering knuckle 100 to form a cavity in the steering knuckle 100 structure, thereby reducing weight and casting costs, achieving a reduction in unsprung mass, and improving the comfort and fuel economy of the entire vehicle.

[0062] 1. In the description of the present invention, it should 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" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0063] 2. In the description of this utility model, "first feature" and "second feature" may include one or more of these features.

[0064] 3. In the description of this utility model, “multiple” means two or more.

[0065] 4. In the description of the present invention, a first feature being “above” or “below” a second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature therebetween.

[0066] 5. In the description of the present utility model, the first feature “above”, “above” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0067] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0068] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A steering knuckle, characterized in that: include: A main body, wherein the main body is provided with a bearing mounting area, wherein the main body is provided with a driving caliper mounting portion and a parking caliper mounting portion on both sides of the bearing mounting area in a first direction, and a plurality of control arm connecting portions on both sides of the main body in a second direction, wherein the driving caliper is mounted on the driving caliper mounting portion along the first direction, and the parking caliper is mounted on the parking caliper mounting portion along the third direction; Wherein, an outer portion is formed between the bearing mounting area and the multiple control arm connecting parts, the driving caliper mounting part and the parking caliper mounting part. The outer portion includes a weight-reducing cavity formed by sand core casting, and the outer portion is provided with sand discharge holes.

2. The steering knuckle according to claim 1, characterized in that: The bearing mounting area is recessed toward one side relative to the outer portion to form a groove, and an outer side wall of the groove is provided with a wheel speed sensor mounting hole, which is protruded along the outer side of the groove toward the inner side of the groove.

3. The steering knuckle according to claim 2, characterized in that: An avoidance hole and multiple bearing mounting holes are provided in the groove, and the multiple bearing mounting holes are located around the avoidance hole. The bearing mounting hole is used to install the wheel hub bearing, and the avoidance hole is used to avoid the protruding part of the wheel hub. A drainage groove is provided on the back side of the groove and on the side close to the wheel hub, and the drainage groove extends radially along the outer circumference of the avoidance hole.

4. The steering knuckle according to claim 1, characterized in that Part of the plurality of control arm connecting parts is an upper front arm connecting ear, an upper rear arm connecting ear, a lower front arm connecting ear and a lower rear arm connecting ear; The upper forearm connecting ear and the upper rear arm connecting ear are located on one side of the driving caliper mounting portion along the second direction, and the lower forearm connecting ear and the lower rear arm connecting ear are located on the other side of the driving caliper mounting portion along the second direction.

5. The steering knuckle according to claim 4, characterized in that: The upper forearm connecting ear is provided with an upper forearm mounting bushing and the upper rear arm connecting ear is provided with an upper rear arm mounting bushing, and the upper forearm mounting bushing is located on a lower side of the upper rear arm mounting bushing.

6. The steering knuckle according to claim 4, characterized in that: The lower forearm connecting ear is provided with a lower forearm mounting bushing, and the lower rear arm connecting ear is provided with a lower rear arm mounting bushing, a stabilizer bar connecting position and a shock absorber mounting bushing which are arranged at intervals.

7. The steering knuckle according to claim 1, characterized in that The plurality of control arm connection portions further include a front toe arm mounting portion configured as a mounting groove open toward the front side of the vehicle.

8. The steering knuckle according to claim 7, characterized in that: The mounting groove is provided with an internal thread, and the mounting groove is threadably connected to the front toe arm via a bolt.

9. The steering knuckle according to claim 1, characterized in that: The wall thickness of the peripheral portion formed in the weight-reducing cavity is a, and satisfies: 5mm≤a≤15mm.

10. A vehicle, characterized in that: The steering knuckle comprises the steering knuckle according to any one of claims 1 to 9.

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