Steering knuckle, vehicle chassis and vehicle

Abstract

A steering knuckle, a vehicle chassis, and a vehicle. The steering knuckle comprises a first joined part (1) and a second joined part (2). A first end of the first joined part (1) has a ball head mounting hole (11), a second end of the first joined part (1) has a first half hole part (12), and two ends of the first half hole part (12) are each provided with a first connecting part (13). The second joined part (2) has a second half hole part (21), two ends of the second half hole part (21) are each provided with a second connecting part (22), and the two second connecting parts (22) of the second joined part (2) match and connect with the two first connecting parts (13) of the first splicing part (1) in a one-to-one correspondence manner, so that the first half hole part (12) and the second half hole part (21) cooperate to form an assembly hole A, the assembly hole A being used to fit with a cylinder body (301) of a suspension oil cylinder (300). The steering knuckle helps to reduce the height of a frame, so that the center of gravity of the whole vehicle is lowered, thereby improving operation stability, which can also increase the upper mounting design space of the chassis.

Description

Steering knuckle arm, vehicle chassis and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of Chinese patent application No. 202410104693.2 filed on January 24, 2024, the contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of steering systems, and in particular to a steering knuckle arm, a vehicle chassis and a vehicle. Background Art

[0004] A vehicle may include a chassis and a frame mounted on the chassis. Currently, the vehicle chassis may include front and rear steering axles and a steering system. The steering system coordinates the steering angle between the front and rear steering axles. The steering system includes a steering rocker arm, a steering tie rod, and a steering knuckle arm. The steering knuckle arm is a key steering transmission component in the steering system, transmitting steering force from the steering rocker arm to drive the wheel-side steering knuckles in the steering axles.

[0005] FIG1 is a schematic diagram of a conventional steering knuckle arm structure. The first end of the steering knuckle arm 01 has a ball joint mounting hole 011, and the second end has a bolt mounting hole 012. FIG2 is a schematic diagram of the conventional connection between the steering knuckle arm 01 and the wheel knuckle 03. The first end of the steering knuckle arm 01 is hinged to one end of the steering tie rod 02 via the ball joint mounting hole 011. The other end of the steering tie rod 02 is hinged to the steering rocker arm. The second end of the steering knuckle arm 01 is located between the suspension cylinder 04 of the steering axle and the wheel knuckle 03. One end of the suspension cylinder 04 can be ball-jointed to the steering knuckle arm 01, and the other end can be hinged to the vehicle frame. The steering knuckle arm 01 can be fixedly connected to the wheel knuckle 03 via bolts passing through the bolt mounting holes 012. Alternatively, the end of the suspension cylinder body can have a flange, with the steering knuckle arm located between the flange and the wheel knuckle. The suspension cylinder and steering knuckle arm can be fixedly connected to the wheel knuckle via bolts passing through the flange and the bolt mounting holes.

[0006] The installation dimensions of the above-mentioned steering knuckle arm 01 in the vertical direction (the arrangement direction of the suspension cylinder 04 and the wheel-side steering knuckle 03) have a direct impact on the height of the frame. The steering knuckle arm 01 occupies about 30 mm of vertical installation space, which is not conducive to reducing the frame height. Summary of the Invention

[0007] The present invention provides a steering knuckle arm, a vehicle chassis and a vehicle. The steering knuckle arm is conducive to reducing the frame height, lowering the center of gravity of the entire vehicle, improving the handling stability, and can increase the upper design space of the chassis.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A steering knuckle arm comprises a first splicing portion and a second splicing portion;

[0010] The first end of the first splicing portion has a ball head mounting hole, the second end of the first splicing portion has a first half hole portion, and both ends of the first half hole portion have a first connecting portion;

[0011] The second splicing portion has a second half-hole portion, and both ends of the second half-hole portion have second connecting portions. The two second connecting portions of the second splicing portion can be matched and connected with the two first connecting portions of the first splicing portion in a one-to-one correspondence, so that the first half-hole portion and the second half-hole portion cooperate to form an assembly hole, and the assembly hole is used to cooperate with the cylinder body of the suspension cylinder.

[0012] Optionally, the first connecting part has at least one first bolt mounting hole, and the second connecting part has at least one second bolt mounting hole corresponding to the at least one first bolt mounting hole. The extension direction of the center line of the first bolt mounting hole, the extension direction of the center line of the second bolt mounting hole, and the extension direction of the center line of the assembly hole are the same. The first connecting part and the second connecting part can be connected by a bolt passing through the first bolt mounting hole and the corresponding second bolt mounting hole.

[0013] Optionally, two side surfaces of the first splicing portion arranged along a first direction are respectively flush with two side surfaces of the second splicing portion arranged along the first direction, and the first direction is an extending direction of a center line of the assembly hole.

[0014] Optionally, a thickness of the first connecting portion along the first direction is the same as a thickness of the second connecting portion along the first direction.

[0015] Optionally, the first splicing portion further includes at least one third bolt mounting hole arranged around the assembly hole, and the second splicing portion further includes at least one fourth bolt mounting hole arranged around the assembly hole.

[0016] Optionally, the first bolt mounting hole, the third bolt mounting hole and the fourth bolt mounting hole are evenly distributed around the assembly hole.

[0017] Optionally, the second splicing portion is semi-annular, and the assembly hole is a circular hole.

[0018] The present invention also provides a vehicle chassis, comprising any one of the steering knuckle arms provided by the above technical solutions, and also comprising a wheel side steering knuckle and a suspension cylinder;

[0019] The steering knuckle arm is mounted on the cylinder body of the suspension cylinder through an assembly hole. The end of the cylinder body of the suspension cylinder has a flange portion, and the flange portion is located between the steering knuckle arm and the wheel-side steering knuckle. The steering knuckle arm and the suspension cylinder are fixedly connected to the wheel-side steering knuckle by bolts that pass through the steering knuckle arm and the flange portion in sequence.

[0020] Optionally, when the steering knuckle arm has a first bolt mounting hole and a second bolt mounting hole, the steering knuckle arm and the suspension cylinder are fixedly connected to the wheel side steering knuckle by bolts passing through the first bolt mounting hole, the second bolt mounting hole and the flange part.

[0021] The present invention also provides a vehicle, comprising a vehicle chassis provided by the above technical solution.

[0022] An embodiment of the present invention provides a steering knuckle arm, a vehicle chassis, and a vehicle, wherein the steering knuckle arm includes a first splicing portion and a second splicing portion, wherein the first end of the first splicing portion can be connected to the steering tie rod ball joint through a ball head mounting hole, and the first connection portion of the first splicing portion is correspondingly connected to the second connection portion of the second splicing portion, so that the first half hole portion of the first splicing portion and the second half hole portion of the second splicing portion can be matched and spliced ​​to form an assembly hole for matching with the cylinder body of the suspension cylinder. The above-mentioned steering knuckle arm can be sleeved on the cylinder body of the suspension cylinder through the assembly hole formed after the first splicing portion and the second splicing portion are spliced ​​together. Compared with the prior art, it does not need to be arranged between the suspension cylinder and the wheel side steering knuckle, and can save the installation space of the wheel side in the vertical direction (the arrangement direction of the suspension cylinder and the wheel side steering knuckle), which is beneficial to reducing the frame height, lowering the center of gravity of the entire vehicle, improving handling stability, and increasing the upper design space of the chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic structural diagram of a steering knuckle arm in the prior art;

[0024] FIG2 is a schematic diagram of the connection structure of the steering knuckle arm in the prior art;

[0025] FIG3 is a schematic structural diagram of a steering knuckle arm provided by an embodiment of the present invention;

[0026] FIG4 is a schematic diagram of a connection structure of a steering knuckle arm provided by an embodiment of the present invention.

[0027] Icons: 01-steering knuckle arm; 011-ball head mounting hole; 012-bolt mounting hole; 02-steering rod; 03-wheel-side steering knuckle; 04-suspension cylinder; 1-first splicing part; 11-ball head mounting hole; 12-first half hole part; 13-first connecting part; 14-third bolt mounting hole; 2-second splicing part; 21-second half hole part; 22-second connecting part; 211-second bolt mounting hole; 23-fourth bolt mounting hole; A-assembly hole; 100-steering knuckle arm; 200-wheel-side steering knuckle; 300-suspension cylinder; 301-cylinder body; 302-flange part; 400-steering rod. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] 3 and 4 , an embodiment of the present invention provides a steering knuckle arm 100 , including a first splicing portion 1 and a second splicing portion 2 ;

[0030] The first end of the first splicing part 1 has a ball head mounting hole 11, the second end of the first splicing part 1 has a first half hole portion 12, and both ends of the first half hole portion 12 have a first connecting portion 13;

[0031] The second splicing part 2 has a second half-hole part 21, and both ends of the second half-hole part 21 have a second connecting part 22. The two second connecting parts 22 of the second splicing part 2 are matched and connected with the two first connecting parts 13 of the first splicing part 1 in a one-to-one manner, so that the first half-hole part 12 and the second half-hole part 21 cooperate to form an assembly hole A, which is used to cooperate with the cylinder body 301 of the suspension cylinder 300.

[0032] The steering knuckle arm provided in an embodiment of the present invention includes a first splicing part 1 and a second splicing part 2. As shown in Figure 4, the first end of the first splicing part 1 can be connected to the steering rod 400 through a ball head mounting hole 11, and the first connection part 13 of the first splicing part 1 is correspondingly connected to the second connection part 22 of the second splicing part 2, so that the first half hole part 12 of the first splicing part 1 and the second half hole part 21 of the second splicing part 2 can be spliced ​​to form an assembly hole A for cooperating with the cylinder body 301 of the suspension cylinder 300. The above-mentioned steering knuckle arm 100 can be mounted on the cylinder body 301 of the suspension cylinder 300 through the assembly hole A formed by splicing the first splicing part 1 and the second splicing part 2. Compared with the prior art, it does not need to be arranged between the suspension cylinder 300 and the wheel-side steering knuckle 200, which can save the installation space of the wheel in the vertical direction (the arrangement direction of the suspension cylinder 300 and the wheel-side steering knuckle 200), which is beneficial to reducing the frame height, lowering the center of gravity of the vehicle, improving handling stability, and increasing the upper design space of the chassis.

[0033] In an embodiment of the present invention, the first connecting portion 13 may have at least one first bolt mounting hole, and the second connecting portion 22 may have at least one second bolt mounting hole 211 corresponding to the at least one first bolt mounting hole. The extension direction of the center line of the first bolt mounting hole, the extension direction of the center line of the second bolt mounting hole 211, and the extension direction of the center line of the assembly hole A are the same. The first connecting portion 13 and the second connecting portion 22 may be connected by bolts passing through the first bolt mounting hole and the corresponding second bolt mounting hole 211, thereby realizing the connection between the first splicing portion 1 and the second splicing portion 2. In addition, the steering knuckle arm 100 may also be fixedly connected to the wheel side steering knuckle 200 by bolts passing through the first bolt mounting hole and the corresponding second bolt mounting hole 211, which has a simple structure and is easy to assemble.

[0034] Among them, the extension direction of the center line of the above-mentioned assembly hole A and the extension direction of the center line of the ball head mounting hole 11 can be the same or different, and there is no limitation here, which depends on the actual situation.

[0035] Specifically, the two side surfaces of the first splicing part 1 arranged along the first direction can be flush with the two side surfaces of the second splicing part 2 arranged along the first direction respectively. The first direction is the extension direction of the center line of the assembly hole A, which can ensure that the surfaces on both sides of the steering knuckle arm 100 are flat, making it convenient for the steering knuckle arm 100 to be assembled and connected with other components.

[0036] Specifically, the thickness of the first connecting portion 13 along the first direction can be the same as the thickness of the second connecting portion 22 along the first direction, ensuring the splicing effect of the first connecting portion 13 and the second connecting portion 22. Optionally, the thickness of the first connecting portion 13 along the first direction can also be different from the thickness of the second connecting portion 22 along the first direction, which is not limited here and can be determined according to actual circumstances.

[0037] In this embodiment of the present invention, the first joint portion 1 may further include at least one third bolt mounting hole 14 disposed around the assembly hole A, and the second joint portion 2 may further include at least one fourth bolt mounting hole 23 disposed around the assembly hole A. The centerlines of the third and fourth bolt mounting holes 14, 23 extend in the same direction as the centerline of the assembly hole A. The steering knuckle arm 100 may also be bolted to the wheel-side steering knuckle 200 via the third and fourth bolt mounting holes 14, 23, resulting in a simple structure and ease of assembly.

[0038] Specifically, the first bolt mounting hole, the third bolt mounting hole 14, and the fourth bolt mounting hole 23 are evenly distributed around the assembly hole A. The steering knuckle arm 100 is bolted to the wheel side steering knuckle 200 through the first bolt mounting hole 211, the third bolt mounting hole 14, and the fourth bolt mounting hole 23. Since the first bolt mounting hole, the third bolt mounting hole 14, and the fourth bolt mounting hole 23 are evenly distributed around the assembly hole A, a stronger connection between the steering knuckle arm 100 and the wheel side steering knuckle 200 can be ensured.

[0039] Specifically, the number and position of the first bolt mounting hole, the second bolt mounting hole 211 , the third bolt mounting hole 14 and the fourth bolt mounting hole 23 are not specifically limited here and are determined according to actual conditions.

[0040] Specifically, the second splicing portion 2 may be semi-annular, and the assembly hole A may be a circular hole, which has a simple structure and is convenient for assembly with the suspension cylinder 300 .

[0041] It should be noted that the above-mentioned first half hole portion 12 and the second half hole portion 21 may not be circular half holes, but may be half holes of other shapes. Correspondingly, the assembly hole A formed by splicing the first half hole portion 12 and the second half hole portion 21 may also not be a circular hole. There is no restriction here, and it depends on the actual situation.

[0042] The embodiment of the present invention further provides a vehicle chassis, as shown in FIG4 , comprising any one of the steering knuckle arms 100 provided by the above technical solutions, and further comprising a wheel side steering knuckle 200 and a suspension cylinder 300;

[0043] The steering knuckle arm 100 is mounted on the cylinder body 301 of the suspension cylinder 300 through the assembly hole A. The end of the cylinder body 301 of the suspension cylinder 300 has a flange portion 302. The flange portion 302 is located between the steering knuckle arm 100 and the wheel-side steering knuckle 200. The steering knuckle arm 100 and the suspension cylinder 300 are fixedly connected to the wheel-side steering knuckle 200 by bolts that pass through the steering knuckle arm 100 and the flange portion 302 in sequence.

[0044] In the vehicle chassis provided by the above-mentioned embodiment of the invention, the steering knuckle arm 100 can be connected to the steering tie rod 400 by a ball joint through the ball head mounting hole 11, and the first splicing portion 1 and the second splicing portion 2 of the steering knuckle arm 100 are connected by the first connecting portion 13 and the second connecting portion 22. At this time, the first half hole portion 12 of the first splicing portion 1 and the second half hole portion 21 of the second splicing portion 2 can be spliced ​​to form an assembly hole A, and the steering knuckle arm 100 can be sleeved on the cylinder body 301 of the suspension cylinder 300 through the assembly hole A. The end of the cylinder body 301 of the suspension cylinder 300 has a flange portion 302, and the flange portion 302 is located between the steering knuckle and the wheel-side steering knuckle 200. The steering knuckle arm 100 and the suspension cylinder 300 can be fixedly connected to the wheel-side steering knuckle 200 by passing bolts through the steering knuckle arm 100 and the flange part 302. With this connection structure, the steering knuckle arm 100 does not need to be arranged between the suspension cylinder 300 and the wheel-side steering knuckle 200, which can save the installation space of the wheel in the vertical direction (the arrangement direction of the suspension cylinder 300 and the wheel-side steering knuckle 200), which is beneficial to reducing the frame height, lowering the center of gravity of the vehicle, improving handling stability, and increasing the upper design space of the chassis.

[0045] Specifically, when the above-mentioned steering knuckle arm 100 has a first bolt mounting hole and a second bolt mounting hole 211, the steering knuckle arm 100 and the suspension cylinder 300 can be fixedly connected to the wheel-side steering knuckle 200 by bolts passing through the first bolt mounting hole, the second bolt mounting hole 211 and the flange part 302. The structure is simple and easy to assemble.

[0046] Specifically, when the above-mentioned steering knuckle arm 100 has a third bolt mounting hole 14 and a fourth bolt mounting hole 23, the steering knuckle arm 100 and the suspension cylinder 300 can also be fixedly connected to the wheel-side steering knuckle 200 by bolts passing through the third bolt mounting hole 14 and the flange part 302, and bolts passing through the fourth bolt mounting hole 23 and the flange part 302. The structure is simple, so that the steering knuckle arm 100, the suspension cylinder 300 and the wheel-side steering knuckle 200 are firmly assembled.

[0047] The present invention also provides a vehicle, comprising a vehicle chassis provided by the above technical solution.

[0048] Obviously, those skilled in the art may make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A knuckle arm, characterized in that, It includes a first splicing part and a second splicing part; The first end of the first splicing part has a ball head mounting hole, the second end of the first splicing part has a first half-hole part, and both ends of the first half-hole part have first connecting parts; The second splicing part has a second half-hole part, and both ends of the second half-hole part have second connecting parts. The two second connecting parts of the second splicing part can be correspondingly and cooperatively connected with the two first connecting parts of the first splicing part, so that the first half-hole part and the second half-hole part cooperate to form an assembly hole, and the assembly hole is used to cooperate with the cylinder block of the suspension cylinder.

2. The knuckle arm according to claim 1, characterized in that, The first connecting part has at least one first bolt mounting hole, the second connecting part has at least one second bolt mounting hole corresponding to the at least one first bolt mounting hole one by one. The extending direction of the center line of the first bolt mounting hole, the extending direction of the center line of the second bolt mounting hole, and the extending direction of the center line of the assembly hole are the same. The first connecting part and the second connecting part can be connected by bolts passing through the first bolt mounting hole and the corresponding second bolt mounting hole.

3. The knuckle arm according to claim 2, wherein, The two side surfaces of the first splicing part arranged along the first direction are flush with the two side surfaces of the second splicing part arranged along the first direction, and the first direction is the extending direction of the center line of the assembly hole.

4. The knuckle arm according to claim 3, characterized in that, The thickness of the first connecting part along the first direction is the same as the thickness of the second connecting part along the first direction.

5. The knuckle arm according to any one of claims 2-4, characterized in that, The first splicing part further includes at least one third bolt mounting hole arranged around the assembly hole, and the second splicing part further includes at least one fourth bolt mounting hole arranged around the assembly hole.

6. The knuckle arm according to claim 5, characterized in that, The first bolt mounting hole, the third bolt mounting hole, and the fourth bolt mounting hole are evenly distributed around the assembly hole.

7. The knuckle arm according to any one of claims 1-4, characterized in that, The second splicing part is semi-circular, and the assembly hole is circular.

8. A vehicle chassis, characterized in that, It includes a knuckle arm according to any one of claims 1-7, and further includes a wheel side knuckle and a suspension cylinder; The knuckle arm is sleeved on the cylinder block of the suspension cylinder through the assembly hole. The end of the cylinder block of the suspension cylinder has a flange part, and the flange part is located between the knuckle arm and the wheel side knuckle. The knuckle arm and the suspension cylinder are fixedly connected to the wheel side knuckle by bolts passing through the knuckle arm and the flange part in sequence.

9. The vehicle chassis according to claim 8, characterized in that, When the knuckle arm has a first bolt mounting hole and a second bolt mounting hole, the knuckle arm and the suspension cylinder are fixedly connected to the wheel side knuckle by bolts passing through the first bolt mounting hole, the second bolt mounting hole, and the flange part.

10. A vehicle, characterized in that, It includes a vehicle chassis according to claim 8 or 9.

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