Rear suspension knuckle and vehicle

Abstract

This application relates to the field of vehicle chassis technology, and provides a rear suspension steering knuckle and a vehicle. It includes a main body, which has, vertically, spaced-apart upper and lower control arm mounting portions. The upper control arm mounting portion includes a first control arm mounting portion and a second control arm mounting portion arranged sequentially from front to back in the vehicle's longitudinal direction. The lower control arm mounting portion includes a third control arm mounting portion and a fourth control arm mounting portion arranged sequentially from front to back in the same longitudinal direction. Vertically, the third control arm mounting portion is located below the first control arm mounting portion, and the fourth control arm mounting portion is located below the second control arm mounting portion. The first and third control arm mounting portions, or the second and fourth control arm mounting portions, include a connecting member, which is a bushing or a ball joint. This design ensures a smaller caster angle and improves tire wear.

Description

Technical Field

[0001] This application relates to the field of vehicle chassis technology, and more particularly to a rear suspension steering knuckle and vehicle. Background Technology

[0002] The steering knuckle is a key component of a vehicle's steering system and an important safety structural element. It is the only part connecting the vehicle's tires and suspension control arms. The safety and reliability of the steering knuckle directly affect the overall vehicle's driving reliability and the safety of the occupants.

[0003] The rear suspension steering knuckle of a vehicle receives and transmits forces and torques from the wheels, providing control arms, wheel bearings, and caliper mounting points. The control arm mounting point determines the kingpin line, around which the wheel rotates, thus determining the change in wheel angle when subjected to lateral forces. Due to space constraints, most vehicle models have a large caster angle, which causes the wheel to not only change its toe-in when subjected to lateral forces but also significantly increases camber, accelerating tire wear. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a rear suspension steering knuckle and a vehicle. By arranging the control arm mounting part on the main body, the angle between the extension direction of the kingpin line and the vertical is less than or equal to 5°, so that when the wheel is rotated by a lateral force, almost only the toe-in direction changes, thereby improving the problem of large wheel camber changes and reducing tire wear.

[0005] The first aspect of this application provides a rear suspension steering knuckle, including a main body, the main body having an upper control arm mounting portion and a lower control arm mounting portion arranged at intervals in the vertical direction, the upper control arm mounting portion including a first control arm mounting portion and a second control arm mounting portion arranged sequentially from front to back in the longitudinal direction of the vehicle, and the lower control arm mounting portion including a third control arm mounting portion and a fourth control arm mounting portion arranged sequentially from front to back in the longitudinal direction of the vehicle. In the vertical direction, the third control arm mounting part is located below the first control arm mounting part, and the fourth control arm mounting part is located below the second control arm mounting part. The first control arm mounting part and the third control arm mounting part or the second control arm mounting part and the fourth control arm mounting part include a connecting member, which is a bushing or a ball pin.

[0006] The rear suspension steering knuckle provided in this application embodiment has a first control arm mounting portion and a second control arm mounting portion arranged front and rear, and a third control arm mounting portion and a fourth control arm mounting portion arranged front and rear. The third control arm mounting portion is located below the first control arm mounting portion, and the fourth control arm mounting portion is located below the second control arm mounting portion. The first control arm mounting portion and the third control arm mounting portion or the second control arm mounting portion and the fourth control arm mounting portion include a connecting member, which is a bushing or a ball pin. In this way, the length of the first line connecting the mounting points of the first control arm mounting portion and the second control arm mounting portion is close to and nearly parallel to the length of the second line connecting the mounting points of the third control arm mounting portion and the fourth control arm mounting portion. This makes the angle between the kingpin line formed by the midpoint of the first line and the midpoint of the second line and the vertical direction as small as possible, which is beneficial to reducing the caster angle of the kingpin line. Thus, when the wheel is subjected to lateral force, the camber change of the wheel is smaller, thereby improving the tire wear problem.

[0007] In some embodiments, the midpoint of the line connecting the mounting points of the control arms of the first control arm mounting portion and the third control arm mounting portion constitutes the first midpoint, the midpoint of the line connecting the mounting points of the control arms of the second control arm mounting portion and the fourth control arm mounting portion constitutes the second midpoint, the line connecting the first midpoint and the second midpoint constitutes the master pin line, and the angle between the extension direction of the master pin line and the vertical direction is less than or equal to 5°.

[0008] The midpoint of the line connecting the mounting points of the first and second control arm mounting parts constitutes the first midpoint, and the midpoint of the line connecting the mounting points of the third and fourth control arm mounting parts constitutes the second midpoint. The line connecting the first and second midpoints constitutes the kingpin line. The angle between the extension direction of the kingpin line and the vertical direction is less than or equal to 5°, which can ensure a small kingpin caster angle. This results in a smaller change in wheel camber when the wheel is subjected to lateral force, thereby improving tire wear.

[0009] In some embodiments, both the first control arm mounting portion and the third control arm mounting portion include two mounting arms spaced apart in the longitudinal direction of the vehicle. The mounting arms have mounting holes, and the midpoint of the line connecting the centers of the two mounting holes constitutes the mounting point of the control arm.

[0010] The control arm corresponding to the first control arm mounting part and the third control arm mounting part is installed between the two mounting arms, which can improve the installation stability of the control arm.

[0011] In some embodiments, both the second control arm mounting portion and the fourth control arm mounting portion include a connector mounting hole and a connector disposed within the connector mounting hole, and the midpoint of the inner tube of the bushing or the ball pin in its length direction constitutes the mounting point of the control arm.

[0012] The second control arm mounting section and the fourth control arm mounting section are connected to the control arm by bushings or ball joints. Since the control arm connected to the second control arm mounting section and the fourth control arm mounting section is located at the rear of the vehicle, the force on this control arm is generally less than that on the front control arm. Therefore, the use of ball joints can also reduce the probability of ball joint damage, thereby reducing the cost of replacing the steering knuckle due to ball joint damage.

[0013] In some embodiments, the main body is provided with a caliper mounting portion, which is vertically disposed between the second control arm mounting portion and the fourth control arm mounting portion.

[0014] By providing a caliper mounting section, the rear suspension steering knuckle provides a mounting point for the caliper.

[0015] In some embodiments, the caliper mounting portion includes a reinforcing rib and a caliper mounting platform connected together, the caliper mounting platform having a caliper mounting hole, and the reinforcing rib connecting the caliper mounting platform and the main body.

[0016] The calipers are installed using a caliper mounting platform, and the addition of reinforcing ribs can improve the structural strength of the caliper mounting section.

[0017] In some embodiments, two reinforcing ribs are provided, and the two reinforcing ribs are arranged in a triangle with the main body, and the included angle between the two reinforcing ribs is greater than or equal to 50°.

[0018] By setting two reinforcing ribs, which are arranged in a triangular pattern with the main body, the stability is high. Furthermore, the included angle between the two reinforcing ribs is set to be greater than or equal to 50°, which makes the arrangement of the caliper mounting part and the reinforcing ribs more reasonable. This helps to reduce the distance between the caliper mounting platform and the main body, thereby reducing the length of the reinforcing ribs and improving the rigidity of the caliper mounting.

[0019] In some embodiments, a toe mounting portion connected to the body and used for mounting the toe rod is further included, the toe mounting portion having a toe mounting hole and a steel sleeve disposed therein.

[0020] The rear suspension bogie also integrates a toe-in mounting part that connects to the toe-in rod. In order to prevent the toe-in rod from damaging the toe-in mounting part, a steel sleeve is provided in the toe-in mounting hole. The steel sleeve is not easily deformed when subjected to the force of the toe-in rod, so as to ensure the reliability of the toe-in rod installation.

[0021] In some embodiments, the toe mounting portion includes a first connecting rib, a second connecting rib, and a toe mounting platform. The toe mounting platform has a toe mounting hole. The first connecting rib and the second connecting rib are both connected to the main body and form a triangular hollow hole with the main body.

[0022] The first and second connecting ribs form a triangle with the main body, thereby improving the rigidity of the toe-in mounting part, while the hollow hole helps to reduce the weight of the rear suspension steering knuckle.

[0023] In some embodiments, the main body is provided with a damper mounting section for mounting a damper.

[0024] The rear suspension steering knuckle provides a shock absorber mounting section, which allows the shock absorber to be mounted on the rear suspension steering frame. This makes the mounting point of the shock absorber as close as possible to the wheel hub in the left-right direction of the vehicle. As a result, the travel change value of the shock absorber is close to 1 when the wheel bounces up and down. In this way, the shock absorber can change with the wheel, making the vehicle handling more sensitive.

[0025] A second aspect of this application provides a vehicle including a rear suspension steering knuckle as described in any of the preceding claims.

[0026] The vehicle provided in this application has the beneficial effects of the rear suspension steering knuckle described in any of the foregoing claims because it includes the rear suspension steering knuckle described in any of the foregoing claims. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the rear suspension steering knuckle provided in an embodiment of this application; Figure 2 for Figure 1 A front view diagram of the rear suspension steering knuckle; Figure 3 A schematic diagram of the main pin line provided in the embodiments of this application; Figure 4 for Figure 2 Schematic sectional view along the middle AA direction; Figure 5 A structural schematic diagram of the rear suspension steering knuckle provided in an embodiment of this application from another perspective; Figure 6 A front view schematic diagram of the rear suspension steering knuckle provided in an embodiment of this application; Figure 7 for Figure 6 Cross-sectional view along the middle BB direction; Figure 8 This is a structural schematic diagram of the rear suspension steering knuckle provided in an embodiment of this application from another perspective.

[0030] Among them, 1. Main body; 2. First control arm mounting section; 21. Mounting arm; 211. Mounting hole; 3. Second control arm mounting section; 31. Connecting component; 4. Mounting section for the third control arm; 5. Fourth control arm mounting section; 6. Caliper mounting section; 61. Caliper mounting platform; 611. Caliper mounting hole; 62. Reinforcing rib; 7. Toe-in mounting section; 71. Toe-in mounting platform; 711. Toe-in mounting hole; 72. First connecting rib; 73. Second connecting rib; 74. Steel sleeve; 8. Vibration damper mounting section; 81. Vibration damper mounting platform; 811. Vibration damper mounting hole. Detailed Implementation

[0031] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0033] The steering knuckle is a key component of a vehicle's steering system and an important safety structural element. It is the only part connecting the vehicle's tires and suspension control arms. The safety and reliability of the steering knuckle directly affect the overall vehicle's driving reliability and the safety of the occupants.

[0034] The rear suspension steering knuckle of a vehicle receives and transmits forces and torques from the wheels, providing control arms, wheel bearings, and caliper mounting points. The control arm mounting point determines the change in wheel angle when subjected to lateral forces, as the wheel rotates around the kingpin line. The control arm mounting point determines the kingpin line; due to space constraints, most vehicle models have a large caster angle. This causes the wheel to not only change its toe angle when subjected to lateral forces but also significantly increases camber, accelerating tire wear.

[0035] The kingpin line is the axis of rotation when the wheel is turning, while the caster angle refers to the angle at which the kingpin line tilts towards the rear of the vehicle, affecting straight-line stability and self-centering function. The toe angle is a core parameter of vehicle chassis alignment, defined as the angle formed between the tire centerline and the longitudinal axis when viewed from directly above the vehicle.

[0036] Based on this, this application provides a rear suspension steering knuckle. By arranging the control arm mounting portion on the main body, the angle between the extension direction of the kingpin line and the vertical direction, i.e., the caster angle of the kingpin line, is less than or equal to 5°. This makes it so that when the wheel is subjected to lateral force and rotates, almost only the toe-in direction changes, thus improving the problem of large wheel camber changes and reducing tire wear.

[0037] Reference Figures 1 to 7 As shown, some embodiments of this application provide a rear suspension steering knuckle, including a body 1.

[0038] The main body 1 has an upper control arm mounting part and a lower control arm mounting part arranged at intervals in the vertical direction. The upper control arm mounting part includes a first control arm mounting part 2 and a second control arm mounting part 3 arranged sequentially from front to back in the longitudinal direction of the vehicle. The lower control arm mounting part includes a third control arm mounting part 4 and a fourth control arm mounting part 5 arranged sequentially from front to back in the longitudinal direction of the vehicle. In the vertical direction, the third control arm mounting part 4 is located below the first control arm mounting part 2, and the fourth control arm mounting part 5 is located below the second control arm mounting part 3. The first control arm mounting part 2 and the third control arm mounting part 4 or the second control arm mounting part 3 and the fourth control arm mounting part 5 include a connector 31, which is a bushing or a ball pin.

[0039] The rear suspension steering knuckle provided in this application embodiment has a first control arm mounting part 2 and a second control arm mounting part 3 arranged front and rear, and a third control arm mounting part 4 and a fourth control arm mounting part 5 arranged front and rear. The third control arm mounting part 4 is located below the first control arm mounting part 2, and the fourth control arm mounting part 5 is located below the second control arm mounting part 3. The first control arm mounting part 2 and the third control arm mounting part 4 or the second control arm mounting part 3 and the fourth control arm mounting part 5 include a connecting member 31, which is a bushing or a ball pin. In this way, the length of the first line connecting the mounting point of the first control arm mounting part 2 and the mounting point of the second control arm mounting part 3 is close to and nearly parallel to the length of the second line connecting the mounting point of the third control arm mounting part 4 and the mounting point of the fourth control arm mounting part 5. This makes the angle between the kingpin line formed by the midpoint of the first line and the midpoint of the second line and the vertical direction as small as possible, which is beneficial to reducing the caster angle of the kingpin line. In this way, when the wheel is subjected to lateral force, the camber change of the wheel is smaller, thereby improving the tire wear problem.

[0040] In some embodiments, the midpoint of the line connecting the control arm mounting points of the first control arm mounting part 2 and the second control arm mounting part 3 constitutes the first midpoint, the midpoint of the line connecting the control arm mounting points of the third control arm mounting part 4 and the fourth control arm mounting part 5 constitutes the second midpoint, and the line connecting the first midpoint and the second midpoint constitutes the master pin line, wherein the angle between the extension direction of the master pin line and the vertical direction is less than or equal to 5°.

[0041] Among them, reference Figure 2 The vertical direction mentioned above is the Y direction as shown in the figure, and the forward / backward direction of the vehicle is the X direction as shown in the figure. The mounting point of the first control arm mounting part 2 is A1, the mounting point of the second control arm mounting part 3 is A2, the line connecting A2 and A1 is b1, and the midpoint of b1 is O1, which is the first midpoint O1. The mounting point of the third control arm mounting part 4 is A3, the mounting point of the fourth control arm mounting part 5 is A4, the line connecting A3 and A4 is b2, and the midpoint of b2 is O2, which is the second midpoint O2. The line connecting O2 and O1 forms the kingpin line, as shown by line c1 in the figure. The angle between line c1 and line c2, which is vertically set and parallel to the vertical line passing through the wheel center, is less than or equal to 5°.

[0042] In addition, A1 and A2 are located on both sides of line c2 in the longitudinal direction of the vehicle, and A3 and A4 are located on both sides of line c2 in the longitudinal direction of the vehicle. This helps to ensure that the four control arms are evenly distributed on the rear suspension steering knuckle.

[0043] By forming the first midpoint by connecting the mounting points of the control arms of the first control arm mounting part 2 and the second control arm mounting part 3, and forming the second midpoint by connecting the mounting points of the control arms of the third control arm mounting part 4 and the fourth control arm mounting part 5, the line connecting the first midpoint and the second midpoint forms the kingpin line. The angle between the extension direction of the kingpin line and the vertical direction is less than or equal to 5°, which ensures a small kingpin caster angle. This results in a smaller change in wheel camber when the wheel is subjected to lateral force, thereby improving the tire wear problem.

[0044] It should be noted that one end of the aforementioned control arm is connected to the rear suspension steering knuckle, while the other end is used to connect to the rear subframe. Thus, the kingpin line is defined by the connection points of the four control arms to the rear suspension steering knuckle.

[0045] In some embodiments, refer to Figure 1 and Figure 2 Both the first control arm mounting part 2 and the third control arm mounting part 4 mentioned above include two mounting arms 2121 that are spaced apart in the front-rear direction of the vehicle. Mounting holes 211 are provided on the mounting arms 2121, and the midpoint of the line connecting the centers of the two mounting holes 211 constitutes the mounting point of the control arm.

[0046] Understandably, the control arm corresponding to the first control arm mounting part 2 and the third control arm mounting part 4 is mounted between the two mounting arms 2121, which can improve the installation stability of the control arm.

[0047] It should be noted that the aforementioned mounting arm 2121 and the main body 1 are integrally molded, resulting in high integration, structural stability, and high strength.

[0048] In some embodiments, refer to Figure 1 and Figure 2 The second control arm mounting part 3 and the fourth control arm mounting part 5 mentioned above both include a connector mounting hole and a connector 31 disposed in the connector mounting hole. The connector 31 is a bushing or a ball pin, and the inner tube of the bushing or ball pin forms the mounting point of the control arm at the midpoint of its length direction.

[0049] Understandably, the second control arm mounting part 3 and the fourth control arm mounting part 5 are connected to the control arm by bushings or ball pins. Since the control arm connected to the second control arm mounting part 3 and the fourth control arm mounting part 5 is located at the rear of the vehicle, the force on the control arm is generally less than that on the front control arm. Therefore, the use of ball pins can also reduce the probability of ball pin damage, thereby reducing the cost of replacing the steering knuckle due to ball pin damage.

[0050] Furthermore, the mounting points of the second control arm mounting part 3 and the fourth control arm mounting part 5 can also be understood as the geometric center points of the connector mounting holes.

[0051] It should be noted that, referring to Figure 2 The axial direction of the mounting holes of the aforementioned connectors has a preset tilt angle relative to the front-rear direction of the vehicle to accommodate the installation requirements of the control arm.

[0052] In some embodiments, refer to Figures 2 to 5 It also includes a toe mounting part 7 connected to the main body 1 and used for mounting the toe rod. The toe mounting part 7 has a toe mounting hole 711 and a steel sleeve 74 is provided in the toe mounting hole 711.

[0053] Understandably, the rear suspension bogie also integrates a toe-in mounting part 7 that connects to the toe-in rod (not shown in the figure). In order to avoid damage to the toe-in mounting part 7 by the toe-in rod, a steel sleeve 74 is provided in the toe-in mounting hole 711. The steel sleeve 74 is not easily deformed when subjected to the force of the toe-in rod, so as to ensure the reliability of the toe-in rod installation.

[0054] The rear suspension steering knuckle can be made of aluminum, thus the steel sleeve 74 increases the strength of the connection between the toe-in mounting part 7 and the toe-in rod. The steel sleeve 74 can be made of 40Cr.

[0055] It should be noted that the steel sleeve 74 and the toe-in mounting hole 711 are interference fit, which makes the installation of the steel sleeve 74 highly stable and eliminates the need for additional fixing structures, thus saving space.

[0056] Refer to 2 and Figure 5 The aforementioned toe mounting part 7 includes a first connecting rib 72, a second connecting rib 73, and a toe mounting platform 71. The toe mounting platform 71 has a toe mounting hole 711. The first connecting rib 72 and the second connecting rib 73 are both connected to the main body 1, and form a triangular hollow hole with the main body 1.

[0057] Understandably, the rigidity of the toe-in mounting part 7 is improved by forming a triangle with the main body 1 through the first connecting rib 72 and the second connecting rib 73, while the hollow hole helps to reduce the weight of the rear suspension steering knuckle.

[0058] It should be noted that the first connecting rib 72, the second connecting rib 73 and the front mounting platform 71 are integrally formed with the main body 1.

[0059] Furthermore, the aforementioned toe-in mounting portion 7 is located in front of the first control arm mounting portion 2 in the longitudinal direction of the vehicle.

[0060] In some embodiments, refer to Figure 6 and Figure 7 The main body 1 is provided with a caliper mounting part 6, which is vertically positioned between the second control arm mounting part 3 and the fourth control arm mounting part 5. Thus, the rear suspension steering knuckle provides a caliper mounting part 6 for mounting the caliper.

[0061] In related technologies, insufficient rigidity of the caliper mounting point causes the caliper to wobble during emergency braking, resulting in uneven application of braking force to the brake disc and thus easily causing abnormal braking noise.

[0062] To solve the above problems, the caliper mounting part 6 includes a reinforcing rib 62 and a caliper mounting platform 61 connected together. The caliper mounting platform 61 has a caliper mounting hole 611, and the reinforcing rib 62 connects the caliper mounting platform 61 and the main body 1. The caliper is mounted through the caliper mounting platform 61, and the reinforcing rib 62 improves the structural strength of the caliper mounting part 6.

[0063] The aforementioned reinforcing ribs 62 are provided in two configurations, arranged in a triangular shape with the main body 1, with the included angle β between the two reinforcing ribs 62 being greater than or equal to 50°. By providing two reinforcing ribs 62, the triangular arrangement between them and the main body 1 ensures high stability. Furthermore, setting the included angle between the two reinforcing ribs 62 to be greater than or equal to 50° makes the arrangement of the caliper mounting part 6 and the reinforcing ribs 62 more rational, which helps to reduce the distance between the caliper mounting platform 61 and the main body 1, thereby reducing the length of the reinforcing ribs 62 and improving the rigidity of the caliper mounting.

[0064] Specifically, the maximum vertical distance between the caliper mounting platform 61 and the main body 1 is less than or equal to 10mm, so that the length of the reinforcing rib 62 is also as small as possible, ensuring the rigidity of the caliper installation.

[0065] Furthermore, the thickness L of the caliper mounting platform 61 in the axial direction of the caliper mounting hole 611 is preferably 20 mm. By increasing the thickness of the caliper mounting platform 61, the axial length of the caliper mounting hole 611 is also increased, which makes the caliper installation more stable and improves the rigidity of the caliper installation. Of course, the thickness of the caliper mounting platform 61 in the circumferential direction of the caliper mounting hole 611 can also be set to be greater than 20 mm or less than 20 mm according to actual needs.

[0066] In addition, there are two caliper mounting parts 6, both of which are vertically positioned between the second control arm mounting part 3 and the fourth control arm mounting part 5.

[0067] In some embodiments, refer to Figure 1 and Figure 8 The main body 1 is provided with a vibration damper mounting part 8 for installing vibration dampers.

[0068] In other words, the rear suspension steering knuckle provides a shock absorber mounting part 8 for mounting a shock absorber (not shown in the figure), which allows the shock absorber to be mounted on the rear suspension steering frame, so that the mounting point of the shock absorber is infinitely close to the wheel center in the left and right direction of the vehicle. As a result, the travel change value of the shock absorber is close to 1 when the wheel bounces up and down. In this way, the shock absorber can change with the wheel, making the vehicle handling more sensitive.

[0069] The vibration damper mounting section 8 includes a vibration damper mounting platform 81 disposed on the main body 1. The vibration damper mounting platform 81 has vibration damper mounting holes 811, so that the vibration damper can be installed through the vibration damper mounting platform 811 and the vibration damper mounting holes 811.

[0070] Reference Figures 1 to 8An example is provided for a rear suspension steering knuckle, including a main body 1. The main body 1 has an upper control arm mounting portion and a lower control arm mounting portion arranged at intervals in the vertical direction. The upper control arm mounting portion includes a first control arm mounting portion 2 and a second control arm mounting portion 3 arranged sequentially from front to back in the longitudinal direction of the vehicle. The lower control arm mounting portion includes a third control arm mounting portion 4 and a fourth control arm mounting portion 5 arranged sequentially from front to back in the longitudinal direction of the vehicle. The midpoint of the line connecting the control arm mounting points of the first control arm mounting part 2 and the second control arm mounting part 3 constitutes the first midpoint, and the midpoint of the line connecting the control arm mounting points of the third control arm mounting part 4 and the fourth control arm mounting part 5 constitutes the second midpoint. The line connecting the first midpoint and the second midpoint constitutes the main pin line, and the angle between the extension direction of the main pin line and the vertical direction is less than or equal to 5°.

[0071] Both the first control arm mounting part 2 and the third control arm mounting part 4 mentioned above include two mounting arms 2121 that are spaced apart in the front-rear direction of the vehicle. Mounting holes 211 are provided on the mounting arms 2121, and the midpoint of the line connecting the centers of the two mounting holes 211 constitutes the mounting point of the control arm.

[0072] Both the second control arm mounting part 3 and the fourth control arm mounting part 5 mentioned above include a connector mounting hole and a connector 31 disposed in the connector mounting hole. The connector 31 is a bushing or a ball pin, and the inner tube of the bushing or ball pin forms the mounting point of the control arm at the midpoint of its length direction.

[0073] The rear suspension steering knuckle also includes a toe-mounting part 7 connected to the main body 1 and used for mounting the toe-in rod. The toe-mounting part 7 has a toe-mounting hole 711, and a steel sleeve 74 is disposed in the toe-mounting hole 711. The toe-mounting part 7 includes a first connecting rib 72, a second connecting rib 73, and a toe-mounting platform 71. The toe-mounting platform 71 has a toe-mounting hole 711. The first connecting rib 72 and the second connecting rib 73 are both connected to the main body 1, and form a triangular hollow hole with the main body 1.

[0074] The main body 1 is provided with two caliper mounting portions 6, which are vertically positioned between the third control arm and the fourth control arm mounting portions 5. Thus, the rear suspension steering knuckle provides caliper mounting portions 6 for mounting the calipers. Each caliper mounting portion 6 includes a connected reinforcing rib 62 and a caliper mounting platform 61. The caliper mounting platform 61 has a caliper mounting hole 611. The reinforcing rib 62 connects the caliper mounting platform 61 and the main body 1. Two reinforcing ribs 62 are provided, arranged in a triangular formation with the main body 1, and the included angle β between the two reinforcing ribs 62 is greater than or equal to 50°. The maximum vertical distance between the caliper mounting platform 61 and the main body 1 is less than or equal to 10 mm. The thickness L of the caliper mounting platform 61 in the axial direction of the caliper mounting hole 611 is greater than or equal to 20 mm.

[0075] The main body 1 is provided with a vibration damper mounting part 8 for mounting vibration dampers. The vibration damper mounting part 8 includes a vibration damper mounting platform 81 provided on the main body, and the vibration damper mounting platform 81 has vibration damper mounting holes 811.

[0076] The aforementioned shock absorber mounting portion 8 is located vertically below the toe-in mounting portion 7 and in the longitudinal direction of the vehicle, it is located in front of the third control arm mounting portion 4. Of course, the aforementioned shock absorber mounting portion 8 can also be located in other positions according to actual needs.

[0077] Reference Figure 1 and Figure 2 The main body 1 has a central hole, and the aforementioned first control arm mounting part 2, second control arm mounting part 3, caliper mounting part 6, fourth control arm mounting part 5, third control arm mounting part 4, shock absorber mounting part 8, and toe-in mounting part 7 are sequentially arranged in the circumferential direction of the central hole. In the longitudinal direction of the vehicle, the toe-in mounting part 7 is located on the front side, the caliper mounting part 6 is located on the rear side, and the shock absorber mounting part 8 is also located on the front side.

[0078] Other embodiments of this application provide a vehicle including a rear suspension steering knuckle as described in any of the above embodiments.

[0079] The vehicle provided in this application embodiment has the beneficial effects of the rear suspension steering knuckle of any of the above embodiments because it includes the rear suspension steering knuckle of any of the above embodiments, which will not be repeated here.

[0080] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0081] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rear suspension steering knuckle, characterized in that, The system includes a main body (1), which has an upper control arm mounting part and a lower control arm mounting part arranged at intervals in the vertical direction. The upper control arm mounting part includes a first control arm mounting part (2) and a second control arm mounting part (3) arranged sequentially from front to back in the front-rear direction of the vehicle. The lower control arm mounting part includes a third control arm mounting part (4) and a fourth control arm mounting part (5) arranged sequentially from front to back in the front-rear direction of the vehicle. In the vertical direction, the third control arm mounting part (4) is located below the first control arm mounting part (2), the fourth control arm mounting part (5) is located below the second control arm mounting part (3), and the first control arm mounting part (2) and the third control arm mounting part (4) or the second control arm mounting part (3) and the fourth control arm mounting part (5) include a connector (31), which is a bushing or a ball pin.

2. The rear suspension steering knuckle according to claim 1, characterized in that, The midpoint of the line connecting the mounting points of the first control arm mounting part (2) and the control arm mounting part (4) constitutes the first midpoint, and the midpoint of the line connecting the mounting points of the second control arm mounting part (3) and the control arm mounting part (5) constitutes the second midpoint. The line connecting the first midpoint and the second midpoint constitutes the main pin line, and the angle between the extension direction of the main pin line and the vertical direction is less than or equal to 5°.

3. The rear suspension steering knuckle according to claim 2, characterized in that, Both the first control arm mounting part (2) and the third control arm mounting part (4) include two mounting arms (21) spaced apart in the front-rear direction of the vehicle. The mounting arms (21) are provided with mounting holes (211), and the midpoint of the line connecting the centers of the two mounting holes (211) constitutes the mounting point of the control arm.

4. The rear suspension steering knuckle according to claim 3, characterized in that, Both the second control arm mounting part (3) and the fourth control arm mounting part (5) include a connector mounting hole and a connector (31) disposed in the connector mounting hole. The midpoint of the bushing or the inner tube of the ball pin in its length direction constitutes the mounting point of the control arm.

5. The rear suspension steering knuckle according to claim 1, characterized in that, The main body (1) is provided with a caliper mounting part (6), which is vertically positioned between the second control arm mounting part (3) and the fourth control arm mounting part (5).

6. The rear suspension steering knuckle according to claim 5, characterized in that, The caliper mounting part (6) includes a reinforcing rib (62) and a caliper mounting platform (61) connected to each other. The caliper mounting platform (61) has a caliper mounting hole (611). The reinforcing rib (62) connects the caliper mounting platform (61) and the main body (1).

7. The rear suspension steering knuckle according to claim 6, characterized in that, Two reinforcing ribs (62) are provided, and the two reinforcing ribs (62) are arranged in a triangle with the main body (1), and the included angle between the two reinforcing ribs (62) is greater than or equal to 50°.

8. The rear suspension steering knuckle according to claim 1, characterized in that, It also includes a toe mounting part (7) connected to the main body (1) and used for mounting the toe rod, the toe mounting part (7) having a toe mounting hole (711) and a steel sleeve (74) disposed in the toe mounting hole (711).

9. The rear suspension steering knuckle according to claim 8, characterized in that, The toe mounting part (7) includes a first connecting rib (72), a second connecting rib (73) and a toe mounting platform (71). The toe mounting platform (71) has a toe mounting hole (711). The first connecting rib (72) and the second connecting rib (73) are both connected to the main body (1) and form a triangular hollow hole with the main body (1).

10. The rear suspension steering knuckle according to claim 1, characterized in that, The main body (1) is provided with a damper mounting part (8) for installing a damper.

11. A vehicle, characterized in that, Includes the rear suspension steering knuckle as described in any one of claims 1 to 10.

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