Front axle rod piece structure, front axle assembly and vehicle

Abstract

The utility model provides a front axle rod piece structure, a front axle assembly and a vehicle. The front axle rod piece structure comprises a connecting rod, a stabilizer bar unit and a fastener. The connecting rod comprises a ball pin body, a threaded column is arranged on the ball pin body, a through hole is formed in the stabilizer bar unit, a threaded inner hole is formed in the fastener, and the threaded column is in threaded fit with the threaded inner hole so that the stabilizer bar unit can be clamped between the ball pin body and the fastener. An idle stroke hole communicated with the threaded inner hole is formed in the side, close to the stabilizer bar unit, of the threaded inner hole, the threaded column is in threaded fit with the threaded inner hole after penetrating through the through hole and the idle stroke hole, and the clamping length between the ball pin body and the fastener is the sum of the thickness of the stabilizer bar unit and the length of the idle stroke hole in the axial direction of the fastener. Therefore, the clamping length can be effectively increased to improve the residual pre-tightening force, the phenomenon that the fastener is prone to loosening can be effectively avoided, and the connection reliability between the stabilizer bar unit and the connecting rod is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically to a front axle link structure, a front axle assembly, and a vehicle. Background Technology

[0002] The front axle assembly of a vehicle typically includes a front connecting rod, a front stabilizer bar unit, a front subframe, a front shock absorber lower wishbone assembly, and a front steering knuckle. Specifically, the front stabilizer bar unit is mounted on the front subframe, the lower end of the front connecting rod is connected to the front stabilizer bar unit via a front connecting nut, and the upper end of the front connecting rod is connected to the front shock absorber lower wishbone assembly.

[0003] When a vehicle rolls, the front stabilizer bar unit deforms under external load and provides roll force to prevent the vehicle from overturning. Since the front stabilizer bar unit is connected to the front connecting rod via a front connecting nut, external loads can cause the front connecting nut to loosen, leading to an unreliable connection between the front stabilizer bar unit and the front connecting rod, or even connection failure. Utility Model Content

[0004] In view of this, the present invention aims to provide a front axle link structure, a front axle assembly, and a vehicle to solve the problem of unreliable or even failed connection between the front connecting rod and the front stabilizer bar unit.

[0005] In a first aspect, this utility model provides a front axle link structure, including a connecting rod, a stabilizer bar unit, and fasteners;

[0006] The connecting rod includes a ball pin body, a threaded post on the ball pin body, a through hole on the stabilizer unit, and a threaded inner hole inside the fastener. The threaded post passes through the through hole and engages with the threaded inner hole, thus clamping the stabilizer unit between the ball pin body and the fastener.

[0007] The stabilizer bar unit and the threaded inner hole have a free-flow hole that communicates with the threaded inner hole. The free-flow hole is located on one side of the axial direction of the threaded inner hole, and the inner diameter of the free-flow hole is larger than the inner diameter of the threaded inner hole.

[0008] In some embodiments, the free-run hole is provided on the fastener.

[0009] In some embodiments, the stabilizer bar unit includes a stabilizer bar and an intermediate member located on the side of the stabilizer bar near the fastener, the through hole being disposed on the stabilizer bar, and the intermediate member having a central hole formed as the idle hole.

[0010] In some embodiments, the intermediate component is integrally formed with the stabilizer bar;

[0011] And / or, the dimension of the intermediate part along the axial direction of the fastener is not less than 5 mm;

[0012] And / or, the intermediate component is a gasket.

[0013] In some embodiments, the ratio of the length of the threaded inner bore along the axial direction of the fastener to the outer diameter of the threaded post ranges from 0.8 to 1.

[0014] In some embodiments, the ratio of the diameter of the idle hole to the outer diameter of the threaded post is 1.1 to 1.2.

[0015] In some embodiments, the length of the free-run hole along the axial direction of the fastener ranges from 5 mm to 6 mm;

[0016] And / or, the sum of the length of the idle hole along the axial direction of the fastener and the length of the stabilizer bar unit along the axial direction of the fastener is L, the outer diameter of the threaded post is D, and the ratio of L to D ranges from 1 to 4.

[0017] In some embodiments, the inner wall of the idle hole is smooth;

[0018] And / or, the inner contour shape of the empty hole is adapted to the outer contour shape of the threaded post;

[0019] And / or, the idle hole and the threaded inner hole are concentrically arranged.

[0020] Secondly, this utility model provides a front axle assembly, including a subframe, a shock absorber lower wishbone assembly, a steering knuckle, and the front axle link structure as described above;

[0021] The subframe is connected to the stabilizer bar unit, and the lower control arm assembly is connected to the steering knuckle and the stabilizer bar unit respectively.

[0022] Thirdly, this utility model provides a vehicle, including the front axle link structure as described above.

[0023] This utility model provides a front axle link structure, a front axle assembly, and a vehicle. The front axle link structure includes a connecting rod, a stabilizer bar unit, and fasteners. The connecting rod includes a ball pin body with a threaded post, the stabilizer bar unit has a through hole, and the fastener has a threaded inner hole. During assembly, the threaded post of the ball pin body is first passed through the through hole in the stabilizer bar unit, and then the threaded post is inserted into the threaded inner hole of the fastener to engage with the threaded inner hole, thus clamping the stabilizer bar unit between the ball pin body and the fastener, thereby reliably connecting the stabilizer bar unit to the connecting rod.

[0024] Meanwhile, a free-flowing hole, communicating with the threaded inner hole, is provided between the stabilizer bar unit and the threaded inner hole. This free-flowing hole is located on one side of the threaded inner hole's axial direction. Therefore, the threaded pin can only engage with the threaded inner hole after passing through the through hole and the free-flowing hole. At this point, the clamping length between the ball pin body and the fastener is the sum of the stabilizer bar unit's thickness and the length of the free-flowing hole along the fastener's axial direction. This effectively increases the clamping length to enhance residual preload, thereby effectively preventing the fastener from easily loosening and improving the connection reliability between the stabilizer bar unit and the connecting rod. Attached Figure Description

[0025] Figure 1 The figure shown is a cross-sectional view of a front axle member structure according to an embodiment of the present invention;

[0026] Figure 2 The figure shown is a cross-sectional schematic diagram of the fastener according to an embodiment of the present utility model;

[0027] Figure 3 The figure shown is a cross-sectional view of another front axle member structure according to an embodiment of the present invention;

[0028] Figure 4 The diagram shows a comparison between the axial force of the fasteners in the front axle link structure of this utility model embodiment and the axial force of the traditional front connecting nut.

[0029] Figure 5 The diagram shown is a schematic of the load and residual preload of the threaded post of the front axle member structure according to an embodiment of this utility model.

[0030] Among them, 100 is the front axle rod structure; 210 is the stabilizer bar unit; 211 is the through hole; 212 is the stabilizer bar; 220 is the fastener; 221 is the threaded inner hole; 222 is the idle hole; 223 is the flange; 230 is the ball pin body; 231 is the threaded post; 232 is the annular part; 240 is the intermediate part; and 241 is the central hole. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0032] The main reason for unreliable or failed connections between the front stabilizer bar and the front connecting rod is insufficient residual preload in the front connecting nut. Increasing the residual preload can be achieved in two ways: First, by increasing the axial force of the front connecting nut, such as changing from an M12 to an M14 nut, which increases cost and weight. Second, by indirectly increasing the clamping length between the front connecting nut and the front connecting rod. However, since the front stabilizer bar's thickness is fixed, directly increasing the thickness cannot achieve the same clamping length.

[0033] Based on this, refer to Figures 1 to 5 As shown, this embodiment provides a front axle link structure 100, including a connecting rod, a stabilizer bar unit 210, and a fastener 220.

[0034] Specifically, the connecting rod includes a ball pin body 230, a threaded post 231 on the ball pin body 230, a through hole 211 on the stabilizer bar unit 210, and a threaded inner hole 221 in the fastener 220. The threaded post 231 passes through the through hole 211 and engages with the threaded inner hole 221 to clamp the stabilizer bar unit 210 between the ball pin body 230 and the fastener 220.

[0035] The stabilizer bar unit 210 and the threaded inner hole 221 have a free-travel hole 222 that communicates with the threaded inner hole 221. The free-travel hole 222 is located on one side of the axial direction of the threaded inner hole 221, and the inner diameter of the free-travel hole 222 is larger than the inner diameter of the threaded inner hole 221.

[0036] In a specific implementation, the connecting rod includes a ball pin body 230, on which a threaded post 231 is provided. The stabilizer bar unit 210 has a through hole 211 through which the threaded post 231 passes. The threaded post 231 passes through the through hole 211 and then extends into the threaded inner hole 221 of the fastener 220, where it is threadedly engaged. When the threaded post 231 is tightened into the threaded inner hole 221, the stabilizer bar unit 210 can be reliably clamped between the ball pin body 230 and the fastener 220, thereby achieving a reliable connection between the stabilizer bar unit 210 and the connecting rod.

[0037] For example, an annular portion 232 extending circumferentially from the side of the ball pin body 230 near the stabilizer bar unit 210 can be provided, and a flange portion 223 extending circumferentially from the side of the fastener 220 near the stabilizer bar unit 210 can be provided. When the threaded post 231 is tightened into the threaded inner hole 221, the side of the stabilizer bar unit 210 near the ball pin body 230 abuts against the annular portion 232, and the side of the stabilizer bar unit 210 near the flange portion 223 abuts against the flange portion 223. This increases both the contact area between the stabilizer bar unit 210 and the ball pin body 230 and the contact area between the stabilizer bar unit 210 and the fastener 220, thereby further improving the clamping stability of the stabilizer bar unit 210 between the ball pin body 230 and the fastener 220.

[0038] In this embodiment, there is a free-pass hole 222 between the stabilizer bar unit 210 and the threaded inner hole 221. The free-pass hole 222 is located on one side of the axial direction of the threaded inner hole 221 and communicates with the threaded inner hole 221. The inner diameter of the free-pass hole 222 is larger than the inner diameter of the threaded inner hole 221. Therefore, before the threaded post 231 is threaded into the threaded inner hole 221, it needs to pass through the through hole 211 and the free-pass hole 222. Since the inner diameter of the free-pass hole 222 is larger than the inner diameter of the threaded inner hole 221, the threaded post 231 can pass smoothly through the free-pass hole 222 without contact interference.

[0039] After the threaded post 231 passes through the idle hole 222 and then engages with the threaded inner hole 221, the clamping length L between the ball pin body 230 and the fastener 220 is the sum of the thickness L1 of the stabilizer bar unit 210 and the length L2 of the idle hole 222 along the axial direction of the fastener 220. It should be noted that when the stabilizer bar unit 210 is reliably clamped between the ball pin body 230 and the fastener 220, the distance between the side of the stabilizer bar unit 210 away from the fastener 220 and the end face of the threaded inner hole 221 closest to the stabilizer bar unit 210 is set as the clamping length.

[0040] As can be seen from the above, the clamping length L in this embodiment is the sum of the thickness L1 of the stabilizer bar unit 210 and the length L2 of the idle hole 222 along the axial direction of the fastener 220. Since the thickness of the stabilizer bar unit 210 cannot be changed, this embodiment increases the clamping length by introducing the idle hole 222. When the clamping length increases, the working load F borne by the fastener 220 and the threaded post 231 can be reduced. A This indirectly increases the residual preload between the threaded post 231 and the fastener 220, effectively preventing the fastener 220 from easily loosening. The specific principle is explained in the following formula:

[0041]

[0042] Among them, F KR It is residual preload. F M The axial force F provided by threaded post 231 A This is the working load. C S For the stiffness of threaded column 231, C p This refers to the stiffness of fastener 220. In F M、 F A、 C S、 C p Under the condition that F remains unchanged A Increase, residual preload F KR Increased. When the stabilizer bar unit 210 is subjected to external tensile vibration, the fastener 220 can better resist the influence of external forces, ensuring that the fastener 220 does not loosen.

[0043] The front axle link structure 100 of this embodiment includes a connecting rod, a stabilizer bar unit 210, and a fastener 220. By setting the connecting rod to include a ball pin body 230, and providing a threaded post 231 on the ball pin body 230, providing a through hole on the stabilizer bar unit, and providing a threaded inner hole 221 on the fastener 220, during assembly, the threaded post 231 of the ball pin body 230, which is hinged at least one end of the connecting rod, can be passed through the through hole 211 on the stabilizer bar unit 210 first, and then the threaded post 231 can be inserted into the threaded inner hole 221 of the fastener 220 to engage with the threaded inner hole 221, so that the stabilizer bar unit 210 is clamped between the ball pin body 230 and the fastener 220, thereby achieving the purpose of reliably connecting the stabilizer bar unit 210 to the connecting rod.

[0044] Meanwhile, there is a free-run hole 222 between the stabilizer bar unit 210 and the threaded inner hole 221. The free-run hole 222 is located on one side of the axial direction of the threaded inner hole 221 and communicates with the threaded inner hole 221. Therefore, the threaded post 231 can only be threaded into the threaded inner hole 221 after passing through the through hole 211 and the free-run hole 222. At this time, the clamping length between the ball pin body 230 and the fastener 220 is the sum of the thickness of the stabilizer bar unit 210 and the length of the free-run hole 222 along the axial direction of the fastener 220. That is, by setting the free-run hole 222 to increase the clamping length, the residual preload can be increased, thereby effectively preventing the fastener 220 from easily loosening, so as to effectively improve the connection reliability between the stabilizer bar unit 210 and the connecting rod.

[0045] Furthermore, using larger nuts to improve clamping performance not only increases the risk of breakage of the hexagonal tooling that restricts the rotation of the ball pin, but also requires a higher torque assembly gun for tightening. This embodiment improves clamping performance by adding a free-stroke hole 220 to increase the clamping length. Therefore, it eliminates the need for larger fasteners, avoiding increased manufacturing costs and weight, preventing easy breakage of the hexagonal tooling, and eliminating the need for a high-torque assembly gun. Consequently, the overall cost of the assembly equipment is also lower.

[0046] Reference Figure 1 and Figure 2 As shown, in some embodiments, the idle hole 222 can be provided on the fastener 220.

[0047] Specifically, the idle hole 222 is provided inside the fastener 220, that is, the inner hole of the fastener 220 itself is divided into two parts, specifically including a non-threaded hole section and a threaded hole section. The non-threaded hole section is located on the side of the threaded hole section near the through hole 211 and forms the idle hole 222, while the threaded hole section forms the threaded inner hole 221.

[0048] This design not only simplifies manufacturing but also effectively utilizes the internal space of the fastener 220 to create the idle hole 222, thus avoiding the increased cost and overall thickness caused by additional components forming the idle hole 222.

[0049] For example, a non-threaded hole section refers to a hole whose inner wall is not threaded. In this case, the inner wall of the hole can be a smooth inner wall or a non-smooth inner wall.

[0050] Furthermore, by providing a free-flow hole 222 within the fastener 220, the flexibility of the fastener 220 can be effectively increased, i.e., the stiffness of the fastener 220 can be reduced. See the following formula for details:

[0051]

[0052] Among them, F KR It is the residual preload of threaded post 231. F M The axial force F provided by threaded post 231 A This is the working load. C S It is the stiffness of threaded column 231, C p This refers to the stiffness of fastener 220. Since the clamping length is L1 + L2, the increased clamping length results in the increased working load F borne by fastener 220. A When the stiffness C of fastener 220 is reduced, P It's also gotten smaller. In F M C SWith parameters unchanged, the residual preload F KR The size will increase significantly. When the stabilizer bar unit 210 is subjected to external force tension and vibration, the fastener 220 can better resist the influence of external force, ensuring that the fastener 220 does not loosen.

[0053] Specific reference Figure 4 As shown, V1 is the axial force of the fastener 220 of the front axle link structure 100 in this embodiment of the invention, and V2 is the axial force of the front connecting nut of a conventional front axle assembly. Figure 4 It is evident that the axial force of the fastener 220 in the front axle link structure 100 of this embodiment is significantly increased, which in turn effectively increases the residual preload of the fastener 220, thus effectively preventing the fastener 220 from easily loosening. Furthermore, referring to... Figure 5 As shown, the residual preload F KR and working load F PA The sum is fixed. When the clamping length increases from L1 to L1+L2, the working load F borne by the part increases. PA It will decrease, and the clamping stiffness C P When it decreases, at F M F A and C S With parameters remaining constant, the residual preload F KR It will increase, thus resisting external loads to a certain extent and ensuring that fastener 220 does not loosen.

[0054] For example, the fastener 220 in this embodiment can be manufactured by stamping in one piece to simplify the manufacturing process.

[0055] Reference Figure 3 As shown, in some embodiments, the stabilizer bar unit 210 includes a stabilizer bar 212 and an intermediate member 240 located on the side of the stabilizer bar 212 near the fastener 220. A through hole 211 is provided on the stabilizer bar 212, and the intermediate member 240 has a central hole 241, which is formed as a free-flow hole 222, thereby also realizing the function of introducing the free-flow hole 222 to increase the clamping length.

[0056] For example, the middleware 240 may be a gasket or other metal block or alloy block.

[0057] In some embodiments, the intermediate component 240 is integrally formed with the stabilizer bar 212 to simplify assembly operations and improve the overall structural strength of the stabilizer bar 212.

[0058] Alternatively, in other implementations, the intermediate component 240 may not be mechanically connected to the stabilizer bar 212 but may only have a contact fit.

[0059] Alternatively, the intermediate component 240 can also be mechanically connected to the stabilizer bar 212 by welding or snap-fitting.

[0060] For example, the intermediate piece 240 has a dimension of not less than 5 mm along the axial direction of the fastener 220.

[0061] By reasonably setting the dimensions of the intermediate part 240 along the axial direction of the fastener 220, it is ensured that the idle hole 222 can have a suitable length, avoiding the problem that the length of the idle hole 222 is too small to meet the clamping length setting requirements, and avoiding the problem that the length of the threaded post 231 also needs to be set too large due to the excessive length of the idle hole 222, resulting in higher costs.

[0062] For example, the dimension of the intermediate piece 240 along the axial direction of the fastener 220 can be 5 mm or 6 mm.

[0063] In some embodiments, the ratio of the length of the threaded inner hole 221 along the axial direction of the fastener 220 to the outer diameter of the threaded post 231 ranges from 0.8 to 1.

[0064] Since increasing the length of the threaded inner hole 221 does not significantly improve the clamping capacity, there is no need to set the length of the threaded inner hole 221 too large. In this embodiment, when the idle hole 222 is set inside the fastener 220, by reasonably setting the ratio of the length of the threaded inner hole 221 along the axial direction of the fastener 220 to the outer diameter of the threaded post 231, it is possible to indirectly ensure that the idle hole 222 has a suitable setting length, so as to balance the setting requirements of clamping length and the setting requirements of manufacturing cost.

[0065] For example, the ratio of the length of the threaded inner hole 221 along the axial direction of the fastener 220 to the outer diameter of the threaded post 231 can be 0.8, 0.9, or 1.

[0066] In some embodiments, the ratio of the diameter of the idle hole 222 to the outer diameter of the threaded post 231 is 1.1 to 1.2.

[0067] Since the idle hole 222 needs to ensure that the threaded post 231 can pass through smoothly, its diameter needs to be larger than the inner diameter of the threaded post 231, but it should not be too large. When the idle hole 222 is set in the fastener 220, if the diameter of the idle hole 222 is too large, it will lead to larger requirements for the size specifications of the fastener 220, which will increase the cost. Therefore, it is necessary to reasonably set the ratio of the diameter of the idle hole 222 to the outer diameter of the threaded post 231. For example, the ratio of the diameter of the idle hole 222 to the outer diameter of the threaded post 231 can be 1.1 or 1.2.

[0068] Furthermore, since the inner diameter of the idle hole 222 is larger than the outer diameter of the threaded post 231, the idle hole 222 can also guide the threaded post 231 during insertion, ensuring that the threaded post 231 and the threaded inner hole 221 are aligned and fitted. For example, the inner diameter of the idle hole 222 can also be configured to gradually decrease along the direction from the stabilizer bar unit 210 to the fastener 220, forming a guide structure for guiding the threaded post 231.

[0069] In some embodiments, the length of the idle hole 222 along the axial direction of the fastener 220 ranges from 5 mm to 6 mm.

[0070] This design ensures that the idle hole 222 has an appropriate length, thus avoiding the problem that the length of the idle hole 222 is too small to meet the clamping length requirements, and also avoiding the problem that the length of the threaded post 231 needs to be set too large due to the length of the idle hole 222 being too large, which would result in higher costs.

[0071] For example, the length of the free hole 222 along the axial direction of the fastener 220 can be 5 mm or 6 mm.

[0072] Or, refer to Figure 1 As shown, the sum of the length L2 of the idle hole 222 along the axial direction of the fastener 220 and the length L1 of the stabilizer bar unit 210 along the axial direction of the fastener 220 is L, the outer diameter of the threaded post 231 is D, and the ratio of L to D ranges from 1 to 4, so as to more accurately set the length of the idle hole 222 and ensure that the length setting of the idle hole 222 is more reasonable.

[0073] In some embodiments, the inner wall of the free-pass hole 222 is smooth. This arrangement makes it easier for the threaded post 231 to pass through the free-pass hole 222, and even if slight contact occurs between the two, no large frictional force will be generated, which will affect the normal assembly operation.

[0074] In some embodiments, the inner contour shape of the idle hole 222 is adapted to the outer contour shape of the threaded post 231.

[0075] This configuration improves the compatibility between the two, allowing the threaded post 231 to pass smoothly through the idle hole 222.

[0076] In some embodiments, the idle hole 222 and the threaded inner hole 221 are concentrically arranged.

[0077] This setup not only simplifies the production process but also enhances the aesthetics.

[0078] Furthermore, when the idle hole 222 and the threaded inner hole 221 are not concentric, in order to ensure that the threaded post 231 can pass through the idle hole 222 before threading with the threaded inner hole 221, the size of the idle hole 222 needs to be larger. This results in larger size requirements for the fastener 220, leading to increased costs. Therefore, in this embodiment, the idle hole 222 and the threaded inner hole 221 are concentric, which reduces the size requirements for the fastener 220, allowing even smaller fasteners 220 to be machined to form the idle hole 222 and the threaded inner hole 221, thereby reducing costs.

[0079] Reference Figures 1 to 5 As shown, this embodiment also provides a front axle assembly, including a subframe, a shock absorber lower wishbone assembly, a steering knuckle, and the aforementioned front axle link structure 100.

[0080] The subframe is connected to the stabilizer bar unit 210, and the lower control arm assembly of the shock absorber is connected to the steering knuckle and the stabilizer bar unit 210 respectively.

[0081] The specific structure and implementation principle of the front axle member structure 100 in this embodiment are the same as those of the front axle member structure 100 provided in the above embodiments, and can bring the same or similar technical effects. They will not be described in detail here, but can be referred to the description of the above embodiments.

[0082] Reference Figures 1 to 5 As shown, this embodiment also provides a vehicle, including the front axle link structure 100 or front axle assembly as described above.

[0083] The specific structure and implementation principle of the front axle link structure 100 and the front axle assembly in this embodiment are the same as those of the front axle link structure 100 and the front axle assembly provided in the above embodiments, and can bring the same or similar technical effects. They will not be described in detail here, but can be referred to the description of the above embodiments.

[0084] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection or an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, the terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0085] In this document, relational terms such as “first” and “second” are used merely to distinguish one entity or operation from another, without necessarily requiring or implying 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 limitation, 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.

[0086] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications or equivalent substitutions made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A front axle link structure (100), characterized in that, Includes connecting rods, stabilizer bar units (210), and fasteners (220); The connecting rod includes a ball pin body (230), a threaded post (231) is provided on the ball pin body (230), a through hole (211) is provided on the stabilizer unit (210), and a threaded inner hole (221) is provided in the fastener (220). The threaded post (231) passes through the through hole (211) and engages with the threaded inner hole (221) to clamp the stabilizer unit (210) between the ball pin body (230) and the fastener (220). The stabilizer bar unit (210) and the threaded inner hole (221) have a free-travel hole (222) communicating with the threaded inner hole (221). The free-travel hole (222) is located on one side of the axial direction of the threaded inner hole (221), and the inner diameter of the free-travel hole (222) is larger than the inner diameter of the threaded inner hole (221).

2. The front axle link structure (100) according to claim 1, characterized in that, The idle hole (222) is provided on the fastener (220).

3. The front axle link structure (100) according to claim 1, characterized in that, The stabilizer bar unit (210) includes a stabilizer bar (212) and an intermediate member (240) located on the side of the stabilizer bar (212) near the fastener (220). The through hole (211) is provided on the stabilizer bar (212), and the intermediate member (240) has a central hole (241) which is formed as the idle hole (222).

4. The front axle link structure (100) according to claim 3, characterized in that, The intermediate component (240) and the stabilized rod (212) are integrally formed; And / or, the dimension of the intermediate part (240) along the axial direction of the fastener (220) is not less than 5 mm; And / or, the intermediate component (240) is a gasket.

5. The front axle link structure (100) according to any one of claims 1 to 4, characterized in that, The ratio of the length of the threaded inner hole (221) along the axial direction of the fastener (220) to the outer diameter of the threaded post (231) ranges from 0.8 to 1.

6. The front axle link structure (100) according to any one of claims 1 to 4, characterized in that, The ratio of the diameter of the empty hole (222) to the outer diameter of the threaded post (231) is 1.1 to 1.

2.

7. The front axle link structure (100) according to any one of claims 1 to 4, characterized in that, The length of the idle hole (222) along the axial direction of the fastener (220) ranges from 5 mm to 6 mm; And / or, the sum of the length of the idle hole (222) along the axial direction of the fastener (220) and the length of the stabilizer bar unit (210) along the axial direction of the fastener (220) is L, the outer diameter of the threaded post (231) is D, and the ratio of L to D is in the range of 1 to 4.

8. The front axle link structure (100) according to any one of claims 1 to 4, characterized in that, The inner wall of the empty hole (222) is smooth; And / or, the inner contour shape of the empty hole (222) is adapted to the outer contour shape of the threaded post (231); And / or, the idle hole (222) is concentrically arranged with the threaded inner hole (221).

9. A front axle assembly, characterized in that, Includes a subframe, a shock absorber lower wishbone assembly, a steering knuckle, and a front axle link structure (100) as described in any one of claims 1 to 8; The subframe is connected to the stabilizer bar unit (210), and the lower shock absorber arm assembly is connected to the steering knuckle and the stabilizer bar unit (210) respectively.

10. A vehicle, characterized in that, Includes the front axle link structure (100) as described in any one of claims 1 to 8 or the front axle assembly as described in claim 9.

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