Steering knuckle and vehicle
By splitting the steering knuckle into a steering body and a steering connecting arm and connecting them through a pin shaft, the problems of insufficient adaptability and versatility of the steering knuckle are solved, low-cost adaptive adjustment and self-adaptive regulation are achieved, and the practicality of the steering knuckle is improved.
Patent Information
- Application Number
- CN202422179905.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-09-05
AI Technical Summary
Existing steering knuckles have poor adaptability and versatility, resulting in high manufacturing costs and long development cycles.
The steering knuckle is designed to be split into two parts: the steering body and the steering connecting arm. These parts are manufactured through independent casting molds and connected by a pin hinge, allowing independent adjustment and replacement of parts to adapt to changes in the suspension or steering system.
The cost of changing the steering knuckle is reduced, the adaptability is improved, the position deviation between the wheel hub and the steering rod can be adaptively adjusted, and the practicality of the steering knuckle is enhanced.
Smart Images
Figure CN223355695U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicles, and more particularly to a steering knuckle and a vehicle. Background Art
[0002] In automotive design and manufacturing, the steering knuckle is a key component of the steering axle, responsible for transmitting and bearing frontal loads and supporting front wheel rotation for steering. Currently, the wheel is attached to the hub, which is in turn connected to the suspension and body via the steering knuckle. The steering rod pulls the steering knuckle to achieve vehicle steering. However, this structure has relatively poor adaptability because the wheel alignment and track width are entirely determined by the steering knuckle's mounting hardpoint (the point in the suspension that determines its kinematic characteristics). Adjustments to the suspension or braking system mounting components, or changes to the wheel alignment design parameters, necessitate adjustments to the steering knuckle's mounting hardpoint position or shape, requiring the entire steering knuckle to be redesigned and redeveloped. This not only results in poor steering knuckle versatility and adaptability, but also leads to high manufacturing costs and a relatively long development cycle.
[0003] Therefore, how to enhance the applicability of the steering knuckle has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content
[0004] In view of this, an object of the present invention is to provide a steering knuckle to enhance the applicability of the steering knuckle.
[0005] Another object of the present invention is to provide a vehicle comprising the steering knuckle.
[0006] To achieve the above objectives, the present invention provides the following technical solutions:
[0007] A steering knuckle, comprising:
[0008] Steering body, used to connect with the wheel hub and steering rod;
[0009] A steering connecting arm, which is a separate structure from the steering body and is used to connect to the suspension;
[0010] A pin shaft, the steering body is hinged to the steering connecting arm through the pin shaft.
[0011] Optionally, in the above-mentioned steering knuckle, a hinge groove and a first hinge hole are formed on one end of the steering body facing away from the wheel hub, and the first hinge hole passes through a side wall of the hinge groove;
[0012] The steering connecting arm is provided with a hinge protrusion for embedding in the hinge groove, the hinge protrusion is provided with a second hinge hole, and the pin passes through the first hinge hole and the second hinge hole.
[0013] Optionally, in the above-mentioned steering knuckle, a grease filling end cap is provided at one end of the first hinge hole away from the hinge protrusion, and the grease filling end cap seals the pin shaft.
[0014] Optionally, in the above-mentioned steering knuckle, an adjustment piece is provided between the hinge protrusion and the hinge groove, and the pin passes through the adjustment piece.
[0015] Optionally, in the above-mentioned steering knuckle, the adjustment member includes a thrust bearing and a washer, and the thrust bearing and the washer are respectively arranged at two ends of the hinge protrusion.
[0016] Optionally, in the above-mentioned steering knuckle, the steering connecting arm is connected to the pin shaft through a locking pin, so that the pin shaft and the steering connecting arm are fixed, and the steering body rotates relative to the pin shaft and the steering connecting arm.
[0017] Optionally, in the above-mentioned steering knuckle, a limiting portion is provided on the steering body for abutting against the steering connecting arm to limit the rotation of the steering body.
[0018] Optionally, in the above-mentioned steering knuckle, a bushing is provided between the first end of the pin and the steering body.
[0019] Optionally, in the above-mentioned steering knuckle, a needle bearing is provided between the second end of the pin and the steering body.
[0020] A vehicle comprises the above-mentioned steering knuckle.
[0021] The steering knuckle provided by the utility model includes a steering body, a steering connecting arm, and a pin. The steering body is used to connect to the wheel hub and the steering tie rod without affecting the rotation of the wheel hub. The steering connecting arm is used to connect to the vehicle's suspension and is arranged independently of the steering body. In other words, the steering body and the steering connecting arm are split structures. The steering body is hinged to the steering connecting arm via a pin. During vehicle steering, the steering tie rod drives the steering body to rotate relative to the steering connecting arm and the suspension, and the wheel hub follows the steering body to achieve wheel steering.
[0022] Compared with the prior art, the steering knuckle provided by the present invention divides the steering body into two parts: a steering body and a steering connecting arm. The steering body and the steering connecting arm can be cast separately through two casting molds and then assembled into a steering knuckle. When it is necessary to change the mounting components of the suspension or steering system, it is only necessary to adaptively design the necessary components in the steering body or the steering connecting arm and change the matching casting molds, which can effectively reduce the cost of the change. At the same time, when the material of either the steering body or the steering connecting arm needs to be changed, it does not affect the material use of the remaining components, and the adaptability is higher. In addition, the articulated setting of the steering body and the steering connecting arm can achieve a certain degree of adaptive adjustment of the position deviation between the wheel hub and the steering rod, thereby improving the practicality of the steering knuckle.
[0023] The vehicle provided by the present invention includes the above-mentioned steering knuckle. Due to the above-mentioned structure, it also has the above-mentioned beneficial effects. Other structures refer to the existing technology and are not described here in detail. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0025] Figure 1 This is a schematic cross-sectional view of the steering knuckle disclosed in an embodiment of the present utility model;
[0026] Figure 2 This is a schematic diagram of the connection structure of some components of the steering knuckle disclosed in an embodiment of the present utility model;
[0027] Figure 3 Axonometric view of the steering knuckle disclosed in the embodiment of the utility model Figure 1 ;
[0028] Figure 4 Axonometric view of the steering knuckle disclosed in the embodiment of the utility model Figure 2 .
[0029] Among them, 100 is the steering body, 110 is the steering connecting arm, 111 is the bushing, 120 is the pin, 121 is the washer, 122 is the lock pin, 123 is the grease filling end cover, 124 is the thrust bearing, 125 is the shaft sleeve, and 126 is the needle bearing;
[0030] 200 is a wheel hub, 201 is a brake disc, and 202 is a wheel hub bearing. DETAILED DESCRIPTION
[0031] The core of the utility model is to disclose a steering knuckle to enhance the applicability of the steering knuckle.
[0032] Another object of the present invention is to provide a vehicle comprising the steering knuckle.
[0033] The following embodiments are described with reference to the accompanying drawings. The embodiments described below do not limit the scope of the utility model as set forth in the claims. Furthermore, the entire contents of the components described in the following embodiments are not necessarily required to provide the solutions described in the claims. It should be noted that, for ease of description, only the portions relevant to the utility model are shown in the accompanying drawings. The embodiments and features of the embodiments of the present utility model may be combined with one another unless there is a conflict.
[0034] Combine Figure 1-Figure 4 The steering knuckle disclosed in the present invention includes a steering body 100, a steering connecting arm 110, and a pin 120. The steering body 100 is used to connect to the wheel hub 200 and the steering tie rod without affecting the rotation of the wheel hub 200. The steering connecting arm 110 is used to connect to the vehicle's suspension and is provided independently of the steering body 100. In other words, the steering body 100 and the steering connecting arm 110 are split structures. The steering body 100 is hinged to the steering connecting arm 110 via the pin 120. During vehicle steering, the steering tie rod drives the steering body 100 to rotate relative to the steering connecting arm 110 and the suspension, and the wheel hub 200 follows the steering body 100 to achieve wheel steering.
[0035] Compared to the prior art, the steering knuckle disclosed in the present embodiment of the utility model separates the steering body 100 into two parts: the steering body 100 and the steering arm 110. The steering body 100 and the steering arm 110 can be cast separately in two casting molds (or separately prepared using other methods) and then assembled into the steering knuckle. When the mounting components of the suspension or steering system need to be modified, only the necessary components in the steering body 100 or the steering arm 110 need to be adaptively designed and their corresponding casting molds need to be changed, effectively reducing modification costs. Furthermore, when the material of either the steering body 100 or the steering arm 110 needs to be changed, the material used in the remaining components is not affected, thus enhancing adaptability. Furthermore, the articulated arrangement of the steering body 100 and the steering arm 110 enables a certain degree of adaptive adjustment of the positional deviation between the wheel hub 200 and the steering tie rod, improving the practicality of the steering knuckle.
[0036] Combine Figure 1The angle between the extension direction of the pin 120 and the rotation axis of the wheel hub 200 is not zero. Those skilled in the art will appreciate that it is preferable to change the design parameters and wheelbase of the four-wheel alignment by changing the position and shape of the pin hole (also known as the second hinge hole described below) on the steering link arm 110, which is more cost-effective.
[0037] Specifically, a hinge groove and a first hinge hole are provided at the end of the steering body 100 facing away from the wheel hub 200. The first hinge hole is arranged through the side wall of the hinge groove. A hinge protrusion for embedding in the hinge groove is provided on the steering connecting arm 110. A second hinge hole is provided on the hinge protrusion. The first hinge hole and the second hinge hole are connected. The pin shaft 120 can pass through the first hinge hole and the second hinge hole to realize the hinge connection of the steering body 100 and the steering connecting arm 110.
[0038] In order to facilitate the lubrication of the pin 120, a grease filling end cap 123 is detachably provided at one end of the first hinge hole away from the hinge protrusion. Figure 2 There can be two grease filling end covers 123, which are respectively arranged corresponding to the two ends of the pin shaft 120 to seal the pin shaft 120 and the grease together in the first hinge hole. The grease filling end covers 123 are used to facilitate the filling of grease and thus achieve lubrication of the fitting part between the pin shaft 120 and the steering body 100.
[0039] Further optimization scheme, in order to prevent the pin shaft 120 from rotating relative to the steering connecting arm 110, causing the pin shaft 120 to loosen and make abnormal noise during the vehicle steering process, combined with Figure 1 and Figure 2 The steering connecting arm 110 is connected to the pin 120 through the locking pin 122 so that the pin 120 and the steering connecting arm 110 are fixed. During the vehicle steering process, the steering rod pulls the steering body 100 to rotate relative to the pin 120 and the steering connecting arm 110.
[0040] Combine Figure 1 A storage groove can be opened on the locking pin 122 to store a certain amount of grease.
[0041] It is understandable that the positions of the hinge protrusion and the hinge groove in the above embodiment can also be interchanged, that is, the hinge protrusion is provided on the steering body 100 and the hinge groove is provided on the steering connecting arm 110 .
[0042] In order to restrict the relative rotation between the steering connecting arm 110 and the steering body 100 , the steering body 100 is provided with a limiting portion for abutting against the steering connecting arm 110 to limit the rotation angle of the steering connecting arm 110 .
[0043] Specifically, the above-mentioned limiting portion can be the two side walls of the hinge groove in the rotation direction of the steering connecting arm 110, that is, the two side walls of the hinge groove that are not passed through by the pin 120, or, Figure 3 If the embedding groove is provided through the steering body 100 and has only two side walls passed through by the pin 120 , two corresponding limiting plates may be provided on the steering body 100 to serve as the above-mentioned limiting portion.
[0044] Furthermore, a buffer pad can be provided at the position where the limit portion contacts and collides with the steering connecting arm 110. The buffer pad can be connected to the steering body 100 through a slot or directly vulcanized on the steering body 100. The buffer pad can also be provided on the steering connecting arm 110 in the opposite direction.
[0045] To achieve adaptive adjustment of the hinge protrusion's position within the hinge slot, the length of the hinge slot along the direction in which the pin 120 extends can be set to be greater than the length of the hinge protrusion along the direction in which the pin 120 extends. An adjustment member is provided between the hinge protrusion and the hinge slot, through which the pin 120 can pass. By adjusting the position (either the first side or the second side of the hinge protrusion) and the size of the adjustment member, the steering link arm 110 can be adjusted to a suitable position relative to the steering body 100.
[0046] Specifically, the adjustment member may include a thrust bearing 124 and / or a washer 121. The thrust bearing 124 can withstand axial loads, absorb shock and vibration, and reduce friction and wear between the steering body 100 and the steering link arm 110. The washer 121 is available in multiple thicknesses, selected based on the actual assembly of the steering body 100 and the steering link arm 110 to eliminate axial tolerances (the axial direction of the pin 120). Furthermore, the thrust bearing 124 can provide a certain degree of rotational resistance to prevent the steering body 100 from being too sensitive in steering relative to the steering link arm 110.
[0047] Combine Figure 2 In some embodiments, the thrust bearing 124 and the washer 121 are provided together and are respectively provided at both ends of the hinge protrusion.
[0048] In order to achieve flexible steering of the vehicle, combined with Figure 1 and Figure 2 In a specific embodiment disclosed in the present utility model, a shaft sleeve 125 is provided between the first end of the pin shaft 120 and the steering body 100. The setting of the shaft sleeve 125 can effectively reduce the wear between the pin shaft 120 and the steering body 100. During the vehicle steering process, the shaft sleeve 125 is fixed relative to the pin shaft 120, and the steering body 100 rotates relative to the shaft sleeve 125.
[0049] In some embodiments, combined Figure 2A needle roller bearing 126 is provided between the second end of the pin 120 and the steering body 100. The outer ring of the needle roller bearing 126 is attached to and fixed to the inner wall of the first hinge hole of the steering body 100. The needle roller of the needle roller bearing 126 rolls with the outer wall of the pin 120 to reduce frictional resistance and facilitate steering.
[0050] For example, Figure 2 As shown, the needle bearing 126 and the shaft sleeve 125 can be provided together and respectively provided at both ends of the hinge protrusion.
[0051] Furthermore, two connection holes for articulating with the vehicle's suspension are provided on the side of the steering link arm 110 facing away from the steering body 100. Bushings 111 are located within these holes for articulation. The main body of the steering body 100 is used to assemble with components related to the wheel hub 200, such as the brake disc 210 and the wheel hub bearing 202. This is prior art and will not be further elaborated upon here.
[0052] The vehicle disclosed in the present invention includes the above-mentioned steering knuckle. Due to the above-mentioned structure, it also has the above-mentioned beneficial effects. Other structures refer to the existing technology and are not described here in detail.
[0053] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be 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 the present invention. Specific technical means in some embodiments may be incorporated in part or in whole into another embodiment, unless expressly excluded by another embodiment. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A steering knuckle, characterized in that: include: A steering body (100) is used to connect with the wheel hub (200) and the steering rod; A steering connecting arm (110) is a separate structure from the steering body (100) and is used for connecting to the suspension; A pin shaft (120), wherein the steering body (100) is hingedly connected to the steering connecting arm (110) via the pin shaft (120).
2. The steering knuckle according to claim 1, wherein: An end of the steering body (100) facing away from the wheel hub (200) is provided with a hinge groove and a first hinge hole, wherein the first hinge hole passes through a side wall of the hinge groove; The steering connecting arm (110) is provided with a hinge protrusion for embedding in the hinge groove, the hinge protrusion is provided with a second hinge hole, and the pin (120) passes through the first hinge hole and the second hinge hole.
3. The steering knuckle according to claim 2, wherein: A lubricating grease filling end cover (123) is provided at one end of the first hinge hole away from the hinge protrusion, and the lubricating grease filling end cover (123) covers the pin shaft (120).
4. The steering knuckle according to claim 2, wherein: An adjusting piece is provided between the hinge protrusion and the hinge groove, and the pin shaft (120) passes through the adjusting piece.
5. The steering knuckle according to claim 4, characterized in that The adjusting member comprises a thrust bearing (124) and a washer (121), and the thrust bearing (124) and the washer (121) are respectively arranged at two ends of the hinged protrusion.
6. The steering knuckle according to claim 1, wherein: The steering connecting arm (110) is connected to the pin shaft (120) via a locking pin (122), so that the pin shaft (120) and the steering connecting arm (110) are fixed, and the steering body (100) rotates relative to the pin shaft (120) and the steering connecting arm (110).
7. The steering knuckle according to claim 6, characterized in that The steering body (100) is provided with a limiting portion for abutting against the steering connecting arm (110) to limit the rotation of the steering body (100).
8. The steering knuckle according to any one of claims 1 to 7, characterized in that: A shaft sleeve (111) is provided between the first end of the pin shaft (120) and the steering body (100).
9. The steering knuckle according to any one of claims 1 to 7, characterized in that: A needle roller bearing (126) is provided between the second end of the pin shaft (120) and the steering body (100).
10. A vehicle, characterized in that: Comprising the steering knuckle according to any one of claims 1-9.