A steering knuckle arm, a vehicle chassis and a vehicle

Abstract

This invention relates to the field of steering system technology, and discloses a steering knuckle arm, a vehicle chassis, and a vehicle. The steering knuckle arm includes a first splicing portion and a second splicing portion. The first splicing portion has a ball joint mounting hole at its first end and a first semi-hole portion at its second end, both ends of which have first connecting portions. The second splicing portion has a second semi-hole portion, both ends of which have second connecting portions. The two second connecting portions of the second splicing portion can be correspondingly connected to the two first connecting portions of the first splicing portion to form an assembly hole, which is used to mate with the cylinder block of a suspension cylinder. This steering knuckle arm helps to reduce the vehicle frame height, lower the vehicle's center of gravity, improve handling stability, and increase the design space for the chassis superstructure.

Description

Technical Field

[0001] This invention relates to the field of steering system technology, and in particular to a steering knuckle arm, a vehicle chassis, and a vehicle. Background Technology

[0002] A vehicle may include a chassis and a frame mounted on the chassis. Currently, a vehicle chassis may include front and rear steering axles and a steering system. The steering system is used to coordinate the angular relationship between the front and rear steering axles. The steering system includes steering rocker arms, steering tie rods, and steering knuckle arms. The steering knuckle arm is an important steering transmission component in the steering system. The function of the steering knuckle arm is to transmit the steering force from the steering rocker arms to drive the wheel-side steering knuckles in the steering axles to steer.

[0003] Among them, such as Figure 1 The diagram shows a structural schematic of a steering knuckle arm in the prior art. The steering knuckle arm 01 has a ball joint mounting hole 011 at its first end and a bolt mounting hole 012 at its second end. Figure 2 The diagram shows a schematic of the connection between the steering knuckle arm 01 and the wheel-side steering knuckle 03 in the prior art. The first end of the steering knuckle arm 01 is hinged to one end of the steering tie rod 02 via a 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-side steering 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-side steering knuckle 03 by bolts passing through the bolt mounting hole 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-side steering knuckle. The suspension cylinder and the steering knuckle arm can be fixedly connected to the wheel-side steering knuckle by bolts passing through the flange and the bolt mounting hole.

[0004] The installation dimensions of the aforementioned 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 vehicle frame. The steering knuckle arm 01 occupies approximately 30mm of vertical installation space, which is not conducive to reducing the height of the vehicle frame. Summary of the Invention

[0005] The present invention provides a steering knuckle arm, a vehicle chassis, and a vehicle. The steering knuckle arm helps to reduce the height of the vehicle frame, lower the center of gravity of the vehicle, improve handling stability, and increase the design space of the chassis superstructure.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A steering knuckle arm includes a first splicing portion and a second splicing portion;

[0008] 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, and both ends of the first half hole have a first connecting part.

[0009] 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 connected to the two first connecting parts of the first splicing part in a one-to-one correspondence, so that the first half-hole part and the second half-hole part cooperate to form an assembly hole. The assembly hole is used to cooperate with the cylinder body of the suspension cylinder.

[0010] 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 bolts passing through the first bolt mounting hole and the corresponding second bolt mounting hole.

[0011] Optionally, the two sides of the first splicing part arranged along the first direction are respectively flush with the two sides of the second splicing part arranged along the first direction, where the first direction is the extension direction of the center line of the assembly hole.

[0012] Optionally, the thickness of the first connecting portion along the first direction is the same as the thickness of the second connecting portion along the first direction.

[0013] Optionally, the first splicing portion further includes at least one third bolt mounting hole disposed around the assembly hole, and the second splicing portion further includes at least one fourth bolt mounting hole disposed around the assembly hole.

[0014] Optionally, the first bolt mounting hole, the third bolt mounting hole, and the fourth bolt mounting hole are evenly distributed around the assembly hole.

[0015] Optionally, the second splicing part is semi-circular, and the assembly hole is circular.

[0016] The present invention also provides a vehicle chassis, including any of the steering knuckle arms provided by the above technical solutions, and further including wheel-side steering knuckles and suspension cylinders;

[0017] The steering knuckle arm is fitted onto 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, which 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 passing through the steering knuckle arm and the flange portion in sequence.

[0018] 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 portion.

[0019] The present invention also provides a vehicle, including a vehicle chassis provided by the above-described technical solution.

[0020] This invention provides a steering knuckle arm, a vehicle chassis, and a vehicle. The steering knuckle arm includes a first splicing portion and a second splicing portion. The first end of the first splicing portion can be connected to a steering tie rod ball joint via a ball joint mounting hole. The first connecting portion of the first splicing portion and the second connecting portion of the second splicing portion are correspondingly connected, allowing the first half-hole portion of the first splicing portion and the second half-hole portion of the second splicing portion to mate and splice together to form an assembly hole for mating with the cylinder body of the suspension cylinder. The aforementioned steering knuckle arm can be fitted onto the cylinder body of the suspension cylinder through the assembly hole formed after the first and second splicing portions are spliced ​​together. Compared with the prior art, it eliminates the need for a mounting hole between the suspension cylinder and the wheel-side steering knuckle, saving installation space in the vertical direction (the arrangement direction of the suspension cylinder and the wheel-side steering knuckle), which is beneficial for reducing the vehicle frame height, lowering the overall center of gravity, improving handling stability, and increasing the design space of the chassis superstructure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a steering knuckle arm in the prior art;

[0022] Figure 2 This is a schematic diagram of the connection structure of the steering knuckle arm in the prior art;

[0023] Figure 3 This is a schematic diagram of the structure of a steering knuckle arm provided in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of a steering knuckle arm connection structure provided in an embodiment of the present invention.

[0025] icon:

[0026] 01-Steering knuckle arm; 011-Ball joint mounting hole; 012-Bolt mounting hole; 02-Steering tie rod; 03-Wheel-side steering knuckle; 04-Suspension cylinder;

[0027] 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 tie rod; A-Assembly hole. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please refer to Figure 3 and Figure 4 The present invention provides a steering knuckle arm 100, including a first splicing part 1 and a second splicing part 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 12, and both ends of the first half hole 12 have a first connecting part 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 connected to the two first connecting parts 13 of the first splicing part 1 in a one-to-one correspondence, 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 this embodiment of the invention includes a first splicing part 1 and a second splicing part 2, as shown below. Figure 4As shown, the first end of the first splicing part 1 can be ball-jointed to the steering tie rod 400 through the ball joint mounting hole 11. The first connecting part 13 of the first splicing part 1 is correspondingly connected to the second connecting 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 steering knuckle arm 100 can be fitted onto the cylinder body 301 of the suspension cylinder 300 through the assembly hole A formed after the first splicing part 1 and the second splicing part 2 are spliced. Compared with the prior art, it does not need to be set between the suspension cylinder 300 and the wheel-side steering knuckle 200, which can save the installation space of the wheel side in the vertical direction (the arrangement direction of the suspension cylinder 300 and the wheel-side steering knuckle 200), which is conducive to reducing the height of the frame, lowering the center of gravity of the vehicle, improving handling stability, and increasing the design space of the chassis superstructure.

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

[0034] The extension direction of the center line of the assembly hole A and the extension direction of the center line of the ball head mounting hole 11 may be the same or different. There is no restriction here, and it depends on the actual situation.

[0035] Specifically, the two sides of the first splicing part 1 arranged along the first direction can be flush with the two sides of the second splicing part 2 arranged along the first direction. 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 to ensure 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 and the thickness of the second connecting portion 22 along the first direction can also be different, which is not limited here and depends on the actual situation.

[0037] In this embodiment of the invention, the first splicing part 1 may further include at least one third bolt mounting hole 14 arranged around the assembly hole A, and the second splicing part 2 may further include at least one fourth bolt mounting hole 23 arranged around the assembly hole A. The extension direction of the centerline of the third bolt mounting hole 14 and the fourth bolt mounting hole 23 is the same as the extension direction of the centerline of the assembly hole A. The steering knuckle arm 100 may also be bolted to the wheel-side steering knuckle 200 through the third bolt mounting hole 14 and the fourth bolt mounting hole 23, which is simple in structure and easy to assemble.

[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 via the first bolt mounting hole, the second bolt mounting hole 211, the third bolt mounting hole 14, and the fourth bolt mounting hole 23. Because 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 connection between the steering knuckle arm 100 and the wheel-side steering knuckle 200 is more secure.

[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, but are determined according to the actual situation.

[0040] Specifically, the second splicing part 2 can be semi-circular, and the assembly hole A is a round hole. The structure is simple and convenient for assembly and cooperation with the suspension cylinder 300.

[0041] It should be noted that the first half-hole portion 12 and the second half-hole portion 21 mentioned above 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 not be circular. There are no restrictions here, and it depends on the actual situation.

[0042] This invention also provides a vehicle chassis, such as... Figure 4 As shown, it includes any of the steering knuckle arms 100 provided by the above technical solutions, as well as wheel-side steering knuckles 200 and suspension cylinders 300;

[0043] The steering knuckle arm 100 is fitted onto 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 302, which 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 passing through the steering knuckle arm 100 and the flange 302 in sequence.

[0044] In the vehicle chassis provided by the above-described embodiments, the steering knuckle arm 100 can be ball-jointed to the steering tie rod 400 via the ball joint mounting hole 11. The first splicing part 1 and the second splicing part 2 of the steering knuckle arm 100 are connected to the second connecting part 22 via the first connecting part 13. At this time, 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 the assembly hole A. The steering knuckle arm 100 can be fitted onto 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 part 302. 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 bolts passing through the steering knuckle arm 100 and the flange 302. With this connection structure, the steering knuckle arm 100 does not need to be set between the suspension cylinder 300 and the wheel-side steering knuckle 200, which can save the installation space of the wheel side in the vertical direction (the arrangement direction of the suspension cylinder 300 and the wheel-side steering knuckle 200), which is conducive to reducing the height of the frame, lowering the center of gravity of the vehicle, improving handling stability, and increasing the design space of the chassis superstructure.

[0045] Specifically, when the 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 portion 302. The structure is simple and easy to assemble.

[0046] Specifically, when the 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 302, and bolts passing through the fourth bolt mounting hole 23 and the flange 302. The structure is simple, and the steering knuckle arm 100, the suspension cylinder 300 and the wheel-side steering knuckle 200 are assembled securely.

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

[0048] Obviously, those skilled in the art can make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope of the invention. Therefore, if these modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A steering knuckle arm, characterized in that, Including the first splicing part and the 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, and both ends of the first half hole have a first connecting part. 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 connected to the two first connecting parts of the first splicing part in a one-to-one correspondence, so that the first half-hole part and the second half-hole part cooperate to form an assembly hole. The assembly hole is used to cooperate with the cylinder body of the suspension cylinder.

2. The steering knuckle arm according to claim 1, characterized in that, 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 bolts passing through the first bolt mounting hole and the corresponding second bolt mounting hole.

3. The steering knuckle arm according to claim 2, characterized in that, The two sides of the first splicing part arranged along the first direction are respectively flush with the two sides of the second splicing part arranged along the first direction, where the first direction is the extension direction of the center line of the assembly hole.

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

5. The steering 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 steering 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 steering 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 round.

8. A vehicle chassis, characterized in that, Including the steering knuckle arm as described in any one of claims 1-7, it also includes a wheel-side steering knuckle and a suspension cylinder; The steering knuckle arm is fitted onto 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, which 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 passing through the steering knuckle arm and the flange portion in sequence.

9. The vehicle chassis according to claim 8, characterized in that, 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.

10. A vehicle, characterized in that, Includes the vehicle chassis as described in claim 8 or 9.

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