Steering system and vehicle

Abstract

The application relates to the technical field of vehicle chassis, in particular to a steering system and a vehicle. The steering system comprises a steering drag link arm, a steering knuckle with a through hole and a plurality of positioning slot holes arranged around the through hole at intervals, a drag link ball head comprising a ball head and a rod body, the rod body being arranged through the through hole and connected with the steering knuckle, the ball head being connected with the steering drag link arm, and the ball center of the ball head being arranged to deviate from the axis of the rod body, and the drag link ball head being limited with the steering knuckle through positioning pieces selectively inserted into one of the positioning slot holes. The steering system adjusts the position of the outer point of the steering drag link arm by rotating the drag link ball head to adjust the position of the positioning slot hole into which the positioning piece is inserted, and ensures the accuracy of the outer point of the steering drag link arm, so that the outer point position of the steering drag link arm can be changed to verify the steering performance under the premise that the four-wheel positioning parameters of the vehicle remain unchanged, the steering trapezoid is facilitated to be optimized, and the cost is reduced and the verification efficiency is improved.

Description

Technical Field

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

[0002] The steering tie rod arm is an important component of the vehicle's steering system. It is connected to the steering knuckle via the tie rod ball joint.

[0003] The position of the outer point of the steering tie rod arm (i.e., the center of the ball joint) affects the vehicle's steering performance. Especially when the vehicle's track width is increased or the wheelbase is reduced, the position of the outer point of the steering tie rod arm needs to be adjusted to optimize the steering trapezoid. This requires remaking the steering knuckle mold, increasing costs, and resulting in a long operation cycle and low verification efficiency. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a steering system and vehicle that allows for adjustable outer point positions of the steering tie rod arms, facilitating optimized steering performance, reducing costs, and improving verification efficiency.

[0005] In a first aspect, this application provides a steering system, comprising:

[0006] Steering tie rod arm;

[0007] A steering knuckle having a through hole and a plurality of positioning slots spaced apart around the through hole;

[0008] A tie rod ball joint includes a ball head and a rod body. The rod body passes through the through hole and is connected to the steering knuckle. The ball head is connected to the steering tie rod arm, and the center of the ball head is offset from the axis of the rod body. The tie rod ball joint is positioned relative to the steering knuckle by a positioning element that can be selectively inserted into one of the positioning slots.

[0009] By setting the ball joint eccentrically away from the axis of the rod body, and by using a positioning component to engage with the positioning slot, the ball joint can be limited in relation to the steering knuckle. In this way, the position of the positioning component inserted into the positioning slot can be adjusted by rotating the ball joint, thereby adjusting the outer point position of the steering tie rod arm. This ensures the accuracy of the outer point of the steering tie rod arm. As a result, the steering performance can be verified by changing the outer point position of the steering tie rod arm while keeping the four-wheel alignment parameters of the vehicle unchanged. This facilitates the optimization of the steering trapezoid, thereby reducing costs and improving verification efficiency.

[0010] In some embodiments, the rod has a rod body and an extension extending radially along the rod body, and the positioning member is a positioning protrusion disposed on the extension and extending axially along the rod body; or

[0011] The positioning element is located at the corner formed by the rod body and the extension.

[0012] If the positioning element is located on the extension, and thus the positioning element is separated from the rod body, then after assembling the steering knuckle and tie rod ball joint, the steering knuckle applies force to the rod body and the positioning element to drive the tie rod ball joint. In this way, in addition to its limiting function, the positioning element can also share the force of the steering knuckle with the rod body.

[0013] If the positioning element is located at the corner formed by the rod body and the extension, and is integrally formed with the rod body, the positioning element can enhance the structural strength with the help of the rod body and the extension, thereby increasing the durability of the positioning element.

[0014] In some embodiments, the rod has a rod body and an extension extending radially along the rod body, the extension having a pin hole;

[0015] The positioning component is a pin, with one end inserted into the positioning slot and the other end inserted into the pin hole, thereby limiting the movement of the tie rod ball joint and the steering knuckle.

[0016] If a pin is chosen as the positioning component, there is no need to install a positioning component on the tie rod ball head; only a pin hole needs to be made, which reduces the machining difficulty of the tie rod ball head. Furthermore, since the pin is separate from the tie rod ball head, it can be stored separately during transportation, avoiding damage from impacts when the tie rod ball head is in contact with the ball head.

[0017] In some embodiments, the tie head further includes a transition portion located between the tie head and the shaft, the transition portion being coaxial with the tie head, and the transition portion being recessed in its circumferential direction to form a clearance space.

[0018] Since the tie rod ball head rotates during operation, the transition section is recessed in its circumference to create a clearance space, which can prevent the rotation of the tie rod ball head from interfering with other structures without changing other structures.

[0019] In some embodiments, the rod has a rod body and an extension extending radially along the rod body;

[0020] Projected onto a plane perpendicular to the rod, part of the transition portion overlaps with the rod body, and another part overlaps with the extension portion.

[0021] One part of the transition section corresponds to the main body of the club, and the other part corresponds to the extension section. This makes the structural strength of the part where the transition section and the club body meet higher, avoiding the formation of a weak area at this point and affecting the service life of the tie club head.

[0022] In some embodiments, the transition portion and the ball head have a smooth transition;

[0023] Along the axial direction of the transition section, the outer diameter of the transition section first gradually decreases and then gradually increases, and the maximum outer diameter of the transition section is smaller than the diameter of the ball head.

[0024] The transition section has a structure that is large at the top and bottom and thin in the middle. The maximum outer diameter of the transition section is smaller than the diameter of the ball joint. This makes the tie rod ball joint concave in the circumferential direction in the transition section. This creates clearance space during the movement of the tie rod ball joint, which to a certain extent avoids interference between the tie rod ball joint and the rest of the vehicle structure. In addition, the outer diameter of the transition section changes continuously. Compared with the stepped structure, there is no obvious change in the outer diameter, which makes the transition section have higher overall structural strength.

[0025] In some embodiments, the steering system further includes a dust cover, one end of which is secured to the steering tie rod arm and the other end of which is secured to the transition portion.

[0026] The transition section and the ball head are coaxial, and the center of the ball head is offset from the axis of the shaft. The dust cover is fixed at the transition section. Compared with fixing the dust cover at the off-center position of the tie rod ball head, there is no need to increase the diameter of the dust cover. Therefore, the existing dust cover can be used, and there is no need to develop a new dust cover, which avoids increasing the development cost of the dust cover.

[0027] In some embodiments, the vertical distance between the axis of the rod and the axis parallel to the axis of the rod and passing through the center of the ball head in the radial direction is greater than 0 mm and less than or equal to 7 mm.

[0028] When the preset distance is too large, the rest of the vehicle's structure must be adjusted according to the range of motion of the tie rod ball joint to avoid interference, which increases costs. Furthermore, if the preset distance is excessively large, the steering system's dust cover may also need to be modified based on the actual situation, such as making an irregularly shaped dust cover, which also increases costs. Therefore, a reasonable range should be chosen for the preset distance, such as greater than 0 and less than or equal to 7.

[0029] In some embodiments, four positioning slots are provided, wherein two of the positioning slots are symmetrically arranged relative to the through hole in the front-rear direction of the vehicle, and the other two positioning slots are symmetrically arranged relative to the through hole in the left-right direction of the vehicle.

[0030] The steering tie rod arm's outer point position can be adjusted in the vehicle's longitudinal and / or lateral directions to optimize the steering trapezoid. Furthermore, adjusting the outer point position in the longitudinal direction allows for verification of the toe-in effect. Adjusting the outer point position in the lateral direction allows for verification of Ackermann rate discrepancies and tire wear.

[0031] Secondly, this application provides a vehicle including the steering system provided in the first aspect.

[0032] The vehicle has the technical effects of the steering system provided in the first aspect. Attached Figure Description

[0033] 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.

[0034] 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.

[0035] Figure 1 This is a partial structural diagram of the steering system described in an embodiment of this application;

[0036] Figure 2 This is a front view schematic diagram of the pull rod head described in the embodiment of this application;

[0037] Figure 3 for Figure 1 A top-view diagram of the steering system in the middle;

[0038] Figure 4 for Figure 3 A cross-sectional view of the steering system in the diagram;

[0039] Figure 5 This is a schematic diagram of the structure of the tie rod head according to one embodiment of this application;

[0040] Figure 6 This is a partial structural schematic diagram of a steering knuckle according to one embodiment of this application;

[0041] Figure 7 This is a schematic diagram of the structure of the tie rod head according to one embodiment of this application;

[0042] Figure 8 This is a partial structural schematic diagram of a steering knuckle according to one embodiment of this application.

[0043] Among them, 1. Steering tie rod arm;

[0044] 2. Steering knuckle; 21. Through hole; 22. Positioning slot;

[0045] 3. Drawbar head; 31. Drawbar head; 32. Shaft body; 321. Shaft body; 322. Extension section; 33. Transition section; 34. Positioning component;

[0046] 4. Dust cover;

[0047] 5. Nuts. Detailed Implementation

[0048] 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.

[0049] 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.

[0050] In a vehicle's steering system, the steering tie rod arm is connected to the steering knuckle via a tie rod ball joint. The position of the outer point of the steering tie rod arm affects the vehicle's steering performance. Especially when the vehicle's track width is increased or the wheelbase is reduced, adjusting the outer point position of the steering tie rod arm is necessary to optimize steering performance. This requires re-designing the steering knuckle mold, which not only increases costs but also leads to a longer production cycle and lower verification efficiency.

[0051] To address the aforementioned issues, this application provides a vehicle steering system that allows for adjustment of the outer point position of the steering tie rod arm without requiring the mold to be remade, thereby optimizing steering performance and improving verification efficiency.

[0052] Specifically, such as Figures 1 to 8 As shown in the figure, this application provides a vehicle steering system. The vehicle steering system includes a steering tie arm 1, a steering knuckle 2, and a tie rod ball joint 3.

[0053] The steering knuckle 2 has a through hole 21 and a plurality of positioning slots 22 arranged around the through hole 21 at intervals. The tie rod ball joint 3 includes a ball joint 31 and a rod body 32. The rod body 32 passes through the through hole 21 and is connected to the steering knuckle 2. The ball joint 31 is connected to the steering tie rod arm 1, and the center of the ball joint 31 is offset from the axis of the rod body 32. The tie rod ball joint 3 is positioned relative to the steering knuckle 2 by a positioning element 34 that can be selectively inserted into one of the positioning slots 22.

[0054] Understandably, this steering system, by setting the ball center of the ball joint 31 to be offset from the axis of the rod body 32, allows the tie rod ball joint 3 to be limited with the steering knuckle 2 through the cooperation of the positioning member 34 and the positioning slot 22. Thus, by rotating the tie rod ball joint 3, the position of the positioning member 34 inserted into the positioning slot 22 can be adjusted, thereby adjusting the outer point position of the steering tie rod arm 1. This ensures the accuracy of the outer point of the steering tie rod arm 1, allowing for the verification of steering performance by changing the outer point position of the steering tie rod arm 1 while keeping the four-wheel alignment parameters of the vehicle unchanged. This facilitates the optimization of the steering trapezoid, thereby reducing costs and improving verification efficiency.

[0055] It should be noted that the center of the ball joint 31 is offset from the axis of the rod body 32. After adjusting the position of the positioning slot 22 into which the positioning component 34 is inserted, the length of the steering tie rod arm 1 needs to be adjusted accordingly to ensure that the four-wheel alignment parameters of the vehicle remain fixed. The length of the steering tie rod arm 1 is adjusted through its own threaded structure. The structure of the steering tie rod arm 1 is a mature existing technology and will not be described in detail here.

[0056] It should also be noted that the steering knuckle 2 is provided with multiple positioning slots 22, which can be sequentially changed to insert the positioning component 34 into the positioning slots 22 to verify steering performance. However, on the finished steering knuckle 2, only one positioning slot 22 can be retained. This facilitates the assembly of the steering knuckle 2 and tie rod ball joint 3 during vehicle assembly, and avoids the positioning component 34 being inserted into the wrong positioning slot 22, which could affect the vehicle's steering performance and improve the yield rate.

[0057] The ball head 31 and the shaft 32 can be integrally formed, which can improve the structural strength of the tie rod ball head 3 and thus increase its service life.

[0058] Furthermore, the aforementioned rod 32 is fixed relative to the steering knuckle 2 by a nut. Specifically, the rod 32 has a threaded section with external threads, and the threaded section of the rod 32 passes through the through hole 21 of the steering knuckle 2. The nut 5 is threadedly connected to the threaded section.

[0059] Reference Figure 2 The setting of the ball head 31's center offset from the axis of the shaft 32 means that the vertical distance between the axis of the shaft 32 and the axis parallel to the axis of the shaft 32 and passing through the center of the ball head 31 is a preset distance L.

[0060] For ease of understanding, the axis of the rod body 32 is defined as the first axis, and the axis that passes through the center of the ball head 31 and is parallel to the first axis is defined as the second axis. The vertical distance between the first axis and the second axis is a preset distance L. In this way, when the ball head 3 of the tie rod is rotated around the first axis, the outer point position of the steering tie rod arm 1 can be adjusted.

[0061] For example, refer to Figure 2The aforementioned preset distance L is greater than 0 mm and less than or equal to 7 mm.

[0062] When the preset distance is too large, the remaining structures of the vehicle must be adjusted according to the movement range of the tie rod ball joint 3 to avoid interference, which increases costs. Furthermore, if the preset distance is excessively large, the dust cover of the steering system may also need to be modified according to the actual situation, such as making an irregularly shaped dust cover, which also increases costs. Therefore, a reasonable range should be chosen for the preset distance, such as greater than 0 and less than or equal to 7, specifically 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, etc. Of course, other reasonable values ​​can also be chosen according to actual needs, without specific limitations. However, if costs permit, or during testing and verification before developing a new model, the preset distance can be set to greater than 7mm.

[0063] In some embodiments, refer to Figure 2 The tie head 3 also includes a transition section 33 located between the head 31 and the shaft 32. The transition section 33 and the head 31 are coaxial, and the transition section 33 is recessed in its circumferential direction to form a clearance space.

[0064] Understandably, since the tie rod ball head 3 rotates during operation, the transition part 33 is recessed in its circumferential direction to form a clearance space. This allows the tie rod ball head 3 to avoid other structures when it rotates, thus preventing interference between the rotation of the tie rod ball head 3 and other structures without changing the other structures.

[0065] It should be noted that the coaxiality of the transition section 33 and the ball head 31 means that the axis of the transition section 33 is parallel to the axis of the shaft 32, and the axis of the transition section 33 passes through the center of the ball head 31. In other words, the axis of the shaft 32 is assumed to be the first axis, and the axis of the transition section 33 is assumed to be the second axis, which passes through the center of the ball head 31, and the first axis and the second axis are parallel.

[0066] Specifically, refer to Figure 2 The transition section 33 and the ball head 31 have a smooth transition. In the axial direction of the transition section 33, the outer diameter of the transition section 33 first gradually decreases and then gradually increases, and the maximum outer diameter of the transition section 33 is smaller than the diameter of the ball head 31.

[0067] Understandably, along its own axial direction, the transition section 33 has a structure that is large at both ends and narrow in the middle, and the maximum outer diameter of the transition section 33 is smaller than the diameter of the ball joint 31. This causes the tie rod ball joint 3 to have a structure that is concave inward in its circumference within the transition section 33. This creates clearance space during the movement of the tie rod ball joint 3, thus preventing interference between the tie rod ball joint 3 and the rest of the vehicle structure to a certain extent. Furthermore, the outer diameter of the transition section 33 changes continuously, unlike a stepped structure, without a significant change in outer diameter, which gives the transition section 33 higher overall structural strength.

[0068] Furthermore, although the transition section 33 provides clearance for the tie rod ball head 3 to avoid other structures, the axis of the transition section 33 is offset from the axis of the rod body 32. This makes it easy for a weak area to form at the junction of the transition section 33 and the rod body 32. When the tie rod ball head 3 is subjected to a large force, it is easy for damage to occur at the junction of the transition section 33 and the rod body 32.

[0069] Therefore, refer to Figure 2 The aforementioned rod 32 is configured to have a rod body 321 and an extension 322 extending radially along the rod body 321. Projected onto a plane perpendicular to the rod 32, a portion of the transition portion 33 overlaps with the rod body 321, and another portion overlaps with the extension 322.

[0070] In other words, part of the transition portion 33 corresponds to the main body 321 of the rod, and the other part corresponds to the extension portion 322. This increases the strength of the part where the transition portion 33 and the rod 32 meet, resulting in higher structural strength at the joint and preventing the formation of a weak area at the joint that could affect the service life of the tie rod ball head 3.

[0071] The transition portion 33 can be connected to the rod body 321 and the extension portion 322 by means of connection (such as welding) to form an integral part, or the transition portion 33 and the rod body 32 can be integrally formed, resulting in high structural strength and good durability. Alternatively, the ball head 31, the rod body 32 and the transition portion 33 can be integrally formed, thus making the tie rod ball head 3 have high structural strength and good durability.

[0072] In addition, the axis of the transition section 33 is offset from the axis of the rod body 32, which makes the overall size of the tie rod ball head 3 larger at the junction of the transition section 33 and the rod body 32. If the dust cover 4 is fixed on the rod body 32, the size of the dust cover 4 at the junction of the transition section 33 and the rod body 32 needs to be increased, for example, by designing an irregular dust cover, but this will increase the development cost.

[0073] Therefore, refer to Figure 3 and Figure 4The aforementioned steering system also includes a dust cover 4, one end of which is attached to the steering tie rod arm 1, and the other end is attached to the transition part 33.

[0074] It should be noted that the aforementioned transition section 33 and ball head 31 are coaxial, and the center of the ball head 31 is offset from the axis of the shaft body 32. In this way, the dust cover 4 is fixed at the transition section 33, which avoids fixing the dust cover 4 at the junction of the shaft body 32 and the transition section 33 of the tie rod ball head 3. There is no need to increase the diameter of the dust cover 4, so the existing dust cover 4 can continue to be used without developing a new dust cover 4, thus avoiding increasing the development cost of the dust cover 4.

[0075] Specifically, the aforementioned steering tie rod arm 1 is provided with a first annular groove, and the dust cover 4 is secured to the steering tie rod arm 1 by a retaining spring, which is located within the first annular groove. Similarly, the aforementioned transition portion 33 is formed with a second annular groove, and the dust cover 4 is secured to the transition portion 33 by a retaining spring tongue, which is located within the second annular groove.

[0076] In some embodiments, the rod 32 has a rod body 321 and an extension 322 extending radially along the rod body 321.

[0077] For example, in one specific implementation, refer to Figure 5 and Figure 6 The positioning element 34 is a positioning protrusion disposed on the extension 322 and extending along the axial direction of the rod body 321.

[0078] Understandably, the positioning element 34 is disposed on the extension 322, so that the positioning element 34 is separated from the rod body 321. Thus, after the steering knuckle 2 and the tie rod ball joint 3 are assembled, the steering knuckle 2 drives the tie rod ball joint 3 by applying force to the rod body 321 and the positioning element 34. In this way, in addition to playing a limiting role, the positioning element 34 can also share the force of the steering knuckle 2 with the rod body 321.

[0079] In addition, the extension 322 not only increases the structural strength of the rod 32, but also provides space for the positioning member 34, so that the positioning member 34 can be set on the extension 322. This also separates the positioning slot 22 on the steering knuckle 2 from the through hole 21, and avoids the machining of the positioning slot 22 from affecting the integrity of the hole wall of the through hole 21.

[0080] Reference Figure 5The aforementioned positioning protrusion can be selected as a positioning cylinder. In this case, the positioning slot 22 is a strip-shaped hole that mates with the positioning cylinder. The strip-shaped hole extends radially along the through hole 21, facilitating the insertion of the positioning cylinder and the positioning slot 22. Even if the positioning slot 22 is set as a strip-shaped hole, the position of the positioning cylinder in the circumferential direction of the through hole 21 is limited by the cooperation between the rod body 321 and the through hole 21, preventing the positioning cylinder from sliding within the strip-shaped hole. Of course, the aforementioned positioning slot 22 can also be selected as a circular hole that mates with the positioning cylinder.

[0081] It should be noted that the ball head 31, the rod body 32, and the positioning component 34 constituting the tie rod ball head 3 can be integrally formed. That is to say, the ball head 31, the rod body 32, and the positioning component 34 are integrated, without the need for connection and assembly, which makes the tie rod ball head 3 structurally strong and durable.

[0082] For example, refer to Figure 6 The aforementioned positioning slots 22 are provided in four parts, two of which are symmetrically arranged relative to the through hole 21 in the front-rear direction of the vehicle, and the other two are symmetrically arranged relative to the through hole 21 in the left-right direction of the vehicle.

[0083] In this way, the outer point position of the steering tie rod arm 1 can be adjusted in the vehicle's longitudinal and / or lateral directions to optimize the steering trapezoid. Furthermore, adjusting the outer point position of the steering tie rod arm 1 in the vehicle's longitudinal direction can also verify the effect of toe-in. Adjusting the outer point position of the steering tie rod arm 1 in the vehicle's lateral direction can also verify the difference in Ackermann ratio and tire wear.

[0084] Of course, the aforementioned positioning slots 22 can be set according to actual needs, such as two, three, five, six, or more. Furthermore, the finished steering knuckle 2 can retain only one positioning slot 22, which is the outer point position of the steering tie rod arm 1 that has been verified to have optimal steering performance.

[0085] For example, in another specific implementation, refer to Figure 7 and Figure 8 The positioning element 34 is located at the corner formed by the rod body 321 and the extension 322.

[0086] Understandably, the positioning element 34 is positioned at the corner formed by the rod body 321 and the extension 322, so that the positioning element 34 can enhance the structural strength with the help of the rod body 321 and the extension 322, thereby increasing the durability of the positioning element 34.

[0087] The positioning component 34 can be optionally configured to be integrated with the rod body 32, thus making the positioning component 34 and the rod body 32 an integral structure with high structural strength and further increasing the durability of the positioning component 34.

[0088] It should be noted that the aforementioned positioning component 34 can be integrally formed with the rod body 321 and the extension 322. In other words, the positioning component 34, the rod body 321, and the extension 322 are integrated, requiring no connection or assembly, resulting in high structural strength.

[0089] For example, refer to Figure 8 Corresponding to the aforementioned positioning element 34, the positioning slot 22 is configured as a connecting through hole 21, meaning that the positioning slot 22 is a notch connecting the through hole 21, facilitating the insertion of the positioning element 34. Furthermore... Figure 8 The document provides a positioning slot 22, meaning that only one positioning slot 22 is retained on the finished steering knuckle 2. Thus, when the positioning component 34 is inserted into the positioning slot 22, the steering performance is optimal at the outer point of the steering tie rod arm 1.

[0090] For example, in another specific implementation, the extension 322 has a pin hole. The positioning member is a pin, with one end inserted into the positioning slot 22 and the other end inserted into the pin hole, thereby limiting the movement of the tie rod ball joint 3 and the steering knuckle 2. In this case, the positioning slot 22 is a circular blind hole that mates with the pin.

[0091] Understandably, at this point, the steering knuckle 2 and the tie rod ball joint 3 are mutually restrained by a pin, requiring a pin hole to be made on the tie rod ball joint 3 for the pin to be inserted. During assembly, one end of the pin is inserted into the positioning slot 22, and the other end is inserted into the pin hole on the extension 322, thus restraining the steering knuckle 2 and the tie rod ball joint 3 and ensuring the accuracy of the outer point position of the steering tie rod arm 1.

[0092] At this point, there is no need to install a positioning component on the tie rod ball joint 3; only a pin hole needs to be made, which reduces the machining difficulty of the tie rod ball joint 3. Furthermore, since the pin is set separately from the tie rod ball joint 3, it can be stored separately during transportation, avoiding damage caused by impacts when on the tie rod ball joint 3.

[0093] This application also provides a vehicle that includes the aforementioned steering system. The technical effects of this vehicle in the embodiments of the aforementioned steering system will not be elaborated further here.

[0094] For example, refer to Figure 5 and Figure 6 The vehicle's steering system includes a steering tie arm 1, a steering knuckle 2, and a tie rod ball joint 3.

[0095] The steering knuckle 2 has a through hole 21 and a plurality of positioning slots 22 arranged around the through hole 21 at intervals. The tie rod ball joint 3 includes a ball joint 31 and a rod body 32. The rod body 32 passes through the through hole 21 and is connected to the steering knuckle 2. The ball joint 31 is connected to the steering tie rod arm 1, and the center of the ball joint 31 is offset from the axis of the rod body 32. The tie rod ball joint 3 is positioned relative to the steering knuckle 2 by a positioning element 34 that can be selectively inserted into one of the positioning slots 22.

[0096] In other words, multiple positioning slots 22 are provided. Thus, the position of the outer point of the steering tie rod arm 1 can be adjusted by rotating the tie rod ball head 3 to adjust the position of the positioning part 34 inserted into the positioning slot 22. This ensures the accuracy of the outer point of the steering tie rod arm 1. Therefore, the steering performance of the vehicle can be verified by changing the outer point of the steering tie rod arm 1 while keeping the four-wheel alignment parameters of the vehicle unchanged.

[0097] For example, refer to Figure 7 and Figure 8 The vehicle's steering system includes a steering tie rod arm 1, a steering knuckle 2, and a tie rod ball joint 3. The steering knuckle 2 has a through hole 21 and a positioning slot 22 circumferentially disposed in the through hole 21. The tie rod ball joint 3 includes a ball head 31 and a rod body 32. The rod body 32 passes through the through hole 21 and is connected to the steering knuckle 2. The ball head 31 is connected to the steering tie rod arm 1, and the center of the ball head 31 is offset from the axis of the rod body 32. The tie rod ball joint 3 is positioned relative to the steering knuckle 2 by a positioning element 34 inserted into the positioning slot 22.

[0098] The aforementioned rod 32 has a rod body 321 and an extension 322 extending radially along the rod body 321. A positioning member 34 is positioned at the corner formed by the rod body 321 and the extension 322. At this location, the positioning member 34 can enhance structural strength and durability by utilizing the rod body 321 and the extension 322. Furthermore, only one positioning slot 22 is retained on the steering knuckle 2. When the positioning member 34 is inserted into this positioning slot 22, optimal steering performance is achieved at the outer point of the steering tie rod arm 1.

[0099] 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.

[0100] 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 steering system, characterized in that, include: Steering tie rod arm (1); Steering knuckle (2) having a through hole (21) and a plurality of positioning slots (22) arranged at intervals around the through hole (21); The tie rod ball joint (3) includes a ball joint (31) and a rod body (32). The rod body (32) passes through the through hole (21) and is connected to the steering knuckle (2). The ball joint (31) is connected to the steering tie rod arm (1), and the center of the ball joint (31) is offset from the axis of the rod body (32). The tie rod ball joint (3) is limited to the steering knuckle (2) by a positioning member (34) that can be selectively inserted into one of the positioning slots (22).

2. The steering system according to claim 1, characterized in that, The rod (32) has a rod body (321) and an extension (322) extending radially along the rod body (321), and the positioning member (34) is a positioning protrusion disposed on the extension (322) and extending axially along the rod body (321); or The positioning element (34) is located at the corner formed by the rod body (321) and the extension (322).

3. The steering system according to claim 1, characterized in that, The rod (32) has a rod body (321) and an extension (322) extending radially along the rod body (321), and the extension (322) has a pin hole. The positioning component (34) is set as a pin, with one end of the pin inserted into the positioning slot (22) and the other end inserted into the pin hole, thereby limiting the position of the tie rod ball head (3) and the steering knuckle (2).

4. The steering system according to claim 1, characterized in that, The tie rod head (3) also includes a transition portion (33) located between the head (31) and the shaft (32), the transition portion (33) and the head (31) are coaxial, and the transition portion (33) is recessed in its circumferential direction to form a clearance space.

5. The steering system according to claim 4, characterized in that, The rod (32) has a rod body (321) and an extension (322) extending radially along the rod body (321); Projected onto a plane perpendicular to the rod (32), part of the transition portion (33) overlaps with the rod body (321), and another part overlaps with the extension portion (322).

6. The steering system according to claim 4, characterized in that, The transition section (33) and the ball head (31) have a smooth transition; In the axial direction of the transition portion (33), the outer diameter of the transition portion (33) first gradually decreases and then gradually increases, and the maximum outer diameter of the transition portion (33) is smaller than the diameter of the ball head (31).

7. The steering system according to claim 4, characterized in that, The steering system also includes a dust cover (4), one end of which is attached to the steering tie rod arm (1), and the other end is attached to the transition part (33).

8. The steering system according to claim 1, characterized in that, The vertical distance between the axis of the rod (32) and the axis parallel to the axis of the rod (32) and passing through the center of the ball head (31) is greater than 0 mm and less than or equal to 7 mm.

9. The steering system according to claim 1, characterized in that, The positioning slots (22) are provided in four parts, two of which are symmetrically arranged relative to the through hole (21) in the front-rear direction of the vehicle, and the other two are symmetrically arranged relative to the through hole (21) in the left-right direction of the vehicle.

10. A vehicle, characterized in that, Including the steering system as described in any one of claims 1-9.

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