Vehicle steering system mounting structure and vehicle

Abstract

The invention discloses a vehicle steering system mounting structure and a vehicle, and belongs to the technical field of automobile parts. The vehicle steering system mounting structure comprises an auxiliary frame, a steering engine, a gasket and a bolt; the steering engine is mounted on the auxiliary frame through a gasket and a bolt; the gasket is provided with a first surface and a second surface which are oppositely arranged; the first surface is in contact with the steering engine, and a plurality of first bulges are arranged on the first surface at intervals; the second face makes contact with the auxiliary frame, and a plurality of second protrusions are arranged on the second face at intervals. Limiting claws are arranged on the first face and / or the second face at intervals, limiting holes are formed in the steering engine and / or the auxiliary frame at intervals, and the limiting claws are inserted into the limiting holes so as to guide the gaskets to be installed at the limiting holes. The bolt penetrates through the auxiliary frame, the gasket and the steering engine to fix the steering engine on the auxiliary frame. The gasket is arranged between the steering engine and the auxiliary frame, and the limiting claws with different lengths are arranged on the surface of the gasket, so that the limiting claws can be prevented from being separated from the limiting holes, and long-term stable connection of the steering system is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of automobile components, and in particular to a vehicle steering system mounting structure. Background Art

[0002] Improving the range of new energy vehicles (NEVs) is highly dependent on overall vehicle lightweighting. The use of cast aluminum subframes and steering gears has become a key technical path to reducing vehicle weight. However, the inherent material properties of aluminum present new engineering challenges: the excessively smooth mounting surfaces of machined aluminum result in a significantly lower coefficient of friction at the interface than with traditional steel components. When the vehicle is turning in place, the extreme torque applied to the steering gear can easily exceed the static friction threshold, causing harmful relative slip between the steering gear and subframe. This not only compromises the suspension system's positioning accuracy but can also induce ride judder and unusual noise.

[0003] Current industry solutions typically suppress slippage by increasing bolt specifications or preload. While this temporarily enhances clamping, it ignores the inherently weak compressive properties of aluminum. Excessive axial loads can cause irreversible tensile deformation or even fracture of the bolts, or permanent crush damage to the aluminum mounting surface. Other existing solutions often incorporate knurling structures on the subframe surface to increase the friction coefficient. However, the hardness matching between aluminum components makes it difficult for the knurled tooth peaks to effectively embed into the mating surface. Instead, they accelerate tooth collapse under cyclic loads, and the resulting aluminum chips exacerbate wear on the friction pair.

[0004] Therefore, there is an urgent need for a vehicle steering system mounting structure that can synergistically achieve lightweight advantages and connection reliability. Summary of the Invention

[0005] The embodiments of the present application provide a vehicle steering system mounting structure and a vehicle, which improve the connection stability between the steering gear and the subframe, so as to at least partially solve the above-mentioned technical problems.

[0006] To achieve the above-mentioned object, according to a first aspect of the present application, a vehicle steering system mounting structure is provided, comprising a subframe, a steering gear, a gasket and bolts; the steering gear is mounted on the subframe via the gasket and the bolts; [WU1] A spacer is disposed between the subframe and the steering gear and has a first surface and a second surface disposed opposite to each other; The first surface contacts the steering gear, and the first surface is provided with a plurality of first protrusions at intervals; The second surface contacts the subframe, and a plurality of second protrusions are provided at intervals on the second surface; Limiting claws are provided at intervals on the first surface and / or the second surface, the limiting claws including a first limiting claw and a second limiting claw, and limiting holes are provided on the steering gear and / or the subframe, the first limiting claw and the second limiting claw are inserted into the limiting holes to guide the gasket to be installed at the limiting holes; Bolts pass through the subframe, spacers, and steering gear to secure the steering gear to the subframe.

[0007] Optionally, the length of the first limiting claw is different from the length of the second limiting claw.

[0008] Optionally, a through hole is provided on the gasket for the bolt to pass through; the first protrusions are distributed at intervals along the circumferential direction surrounding the through hole, and are arranged in at least two circles along the radial direction of the through hole.

[0009] Optionally, the second protrusions are spaced apart along the circumferential direction around the through hole and arranged in at least two circles along the radial direction of the through hole; the orthographic projections of at least part of the second protrusions on the gasket are staggered with the orthographic projections of at least part of the first protrusions on the gasket.

[0010] Optionally, the first protrusions of adjacent rings are staggered in the radial extension direction of the through hole; and / or, The second protrusions of adjacent circles are staggered in the radial extension direction of the through hole.

[0011] Optionally, the limiting hole is located on the sub-frame, and a mounting hole for the bolt to pass through is opened on the steering gear, and the bolt is passed through the limiting hole and the mounting hole.

[0012] Optionally, the extending direction of the limiting claw is parallel to the axial direction of the bolt, and one side surface of the limiting claw is in contact with the inner wall of the limiting hole.

[0013] Optionally, the subframe is an aluminum subframe; the steering gear is an aluminum steering gear; and the gasket is a stainless steel gasket.

[0014] Optionally, the steering gear has a third surface, the third surface and the first surface are in contact with each other; a first recess is formed on the third surface, and the first recess abuts against the first protrusion; The sub-frame has a fourth surface, the fourth surface and the second surface are in contact with each other; the fourth surface is formed with a second recess at intervals, and the second recess abuts against the second protrusion.

[0015] According to a second aspect of the present application, a vehicle is provided, the vehicle including the above-mentioned vehicle steering system mounting structure.

[0016] The vehicle steering system mounting structure and vehicle of the embodiment of the present application, through the above-mentioned technical solution, are provided with a gasket between the steering gear and the subframe, and a plurality of first protrusions and second protrusions are respectively provided at intervals on the first surface and the second surface of the gasket. The first protrusions and the second protrusions are engaged with the steering gear and the subframe through the snap-fitting cooperation. When the vehicle is turning in place, the relative slippage between the steering gear and the subframe is effectively suppressed, thereby improving the connection stability between the two.

[0017] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0018] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same drawing numbers represent the same parts in the following description.

[0019] Figure 1 is a schematic diagram of the overall structure of a vehicle steering system installation structure provided in an exemplary embodiment of the present disclosure; Figure 2 is a cross-sectional schematic diagram of the connection between the subframe and the steering gear provided in an exemplary embodiment of the present disclosure; Figure 3 is a schematic structural diagram of a gasket provided in an exemplary embodiment of the present disclosure; Figure 4 FIG. 4 is a schematic diagram showing the distribution of first protrusions provided in an exemplary embodiment of the present disclosure.

[0020] Description of reference numerals: 1. Subframe; 11. Fourth side; 12. Limiting hole; 2. Steering gear; 21. Third side; 22. Mounting hole; 3. Gasket; 31. First surface; 32. Second surface; 33. First limiting claw; 34. Second limiting claw; 35. Through hole; 311. First protrusion; 321. Second protrusion; 4. Bolts. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0022] When connecting existing aluminum steering gears and aluminum subframes, the machined aluminum mounting surfaces are excessively smooth, resulting in a significantly lower friction coefficient at the connection interface than with traditional steel components. When the vehicle is turning in place, the extreme torque applied to the steering gear can easily exceed the static friction threshold, causing harmful relative slip between the steering gear and subframe. This not only damages the positioning accuracy of the suspension system but can also induce driving vibration and abnormal noise. Existing solutions typically suppress slip by increasing bolt specifications or preload. While this temporarily enhances the clamping effect, it ignores the inherently weak compressive properties of aluminum. Excessive axial loads can cause irreversible tensile deformation or even fracture of the bolts, or permanent crush damage to the aluminum mounting surfaces. Other existing solutions typically incorporate knurling structures on the subframe surface to increase the friction coefficient. However, the hardness between the aluminum parts makes it difficult for the knurled tooth peaks to effectively embed themselves into the mating surface. Instead, this accelerates tooth collapse under cyclic loads, and the aluminum chips generated by crushing further exacerbate wear on the friction pair.

[0023] The inventors propose a vehicle steering system mounting structure and a vehicle, which can enhance the friction between the steering gear and the subframe at the connection, avoid the bolts from being stretched and broken, and avoid the aluminum subframe / steering gear mounting surface from being crushed, thereby ensuring the installation stability of the subframe and the steering gear; and adopt a limit claw design of one long and one short to facilitate the installation and connection between the limit claw and the limit hole, and at the same time, avoid the limit claw from falling out of the limit hole under large impact loads, ultimately ensuring the long-term connection reliability of the steering system under impact loads.

[0024] According to the first aspect of the present application, a vehicle steering system installation structure is provided. Figures 1 to 3 , Figure 1 A schematic diagram of the structure of the vehicle steering system installation structure provided in an embodiment of the present application; Figure 2 is a cross-sectional schematic diagram of the connection between the subframe and the steering gear provided in an exemplary embodiment of the present disclosure; Figure 3 Schematic diagram of the structure of a gasket provided in an exemplary embodiment of the present disclosure.

[0025] The present application provides a vehicle steering system mounting structure, including a subframe 1, a steering gear 2, a gasket 3 and a bolt 4; the steering gear 2 is mounted on the subframe 1 by the gasket 3 and the bolt 4; the gasket 3 is arranged between the subframe 1 and the steering gear 2, and has a first surface 31 and a second surface 32 arranged opposite to each other in the thickness direction; the first surface 31 contacts the steering gear 2, and the first surface 31 is provided with a plurality of first protrusions 311 at intervals; the second surface 32 contacts the subframe 1, and the second surface 32 is provided with a plurality of second protrusions 321 at intervals; limiting claws are provided at intervals on the first surface 31 and / or the second surface 32, and the limiting claws include a first limiting claw 33 and a second limiting claw 34; the steering gear 2 and / or the subframe 1 are provided with limiting holes, and the first limiting claw 33 and the second limiting claw 34 are inserted into the limiting holes to guide the gasket 3 to be installed at the limiting holes; the bolt 4 passes through the subframe 1, the gasket 3 and the steering gear 2 to fix the steering gear 2 on the subframe 1.

[0026] In the above technical solution, a plurality of first protrusions 311 and second protrusions 321 are respectively arranged at intervals on the first surface 31 and the second surface 32 of the gasket 3. The first protrusions 311 and the second protrusions 321 are engaged with the steering gear 2 and the subframe 1, thereby suppressing the relative slippage of the steering gear 2 and the subframe 1 when the vehicle is turning in place; at the same time, the gasket 3 disperses the impact load transmitted by the steering gear 2 to prevent the bolts from being elongated and broken; the gasket 3 can effectively reduce the contact pressure of the mounting surface, thereby preventing the mounting surface of the subframe 1 or the steering gear 2 from being crushed, thereby ensuring the installation stability of the subframe 1 and the steering gear 2.

[0027] In some embodiments, the first limiting claw 33 and the second limiting claw 34 both extend in a direction away from the gasket 3 , and the extending directions of the first limiting claw 33 and the second limiting claw 34 on the same surface are parallel to each other.

[0028] In some embodiments, the length of the first limiting claw 33 is different from the length of the second limiting claw 34. It is understood that the design of one long and one short limiting claw facilitates the installation and connection between the limiting claw and the limiting hole. Furthermore, the longer length of one limiting claw prevents the limiting claw from being dislodged from the limiting hole under high impact loads. The asymmetric structure can disrupt the consistency of the resonant frequency under vibration conditions, suppressing fatigue fracture of the limiting claw caused by cyclic loads, and ultimately ensuring the long-term connection reliability of the steering system under impact loads.

[0029] Specifically, see Figure 3 , the length of the first limiting claw 33 is greater than the length of the second limiting claw 34 .

[0030] It should be noted that the number of the first limiting claws 33 and the second limiting claws 34 on one side of the gasket 3 can be designed according to design requirements, but it must satisfy that the number of the first limiting claws 33 is greater than or equal to 1, and the number of the second limiting claws 34 is greater than or equal to 1, so that it satisfies the length difference of the limiting claws on one side of the gasket 3.

[0031] In some embodiments, see Figure 4 The gasket 3 defines a through hole 35 for the bolt 4 to pass through. The first protrusions 311 are spaced apart along the circumference of the through hole 35 and arranged in at least two circles along the radial direction of the through hole 35. The second protrusions 321 are spaced apart along the circumference of the through hole 35 and arranged in at least two circles along the radial direction of the through hole 35. The orthographic projections of at least some of the second protrusions 321 on the gasket 3 are offset from the orthographic projections of at least some of the first protrusions 311 on the gasket 3.

[0032] It can be understood that the first protrusion 311 and the second protrusion 321 are radially distributed in at least two circles to form a multi-layer structure, so that the compression force generated when the bolt 4 is tightened is dispersed along the radial gradient, thereby greatly reducing the local pressure at the mounting interface between the steering gear 2 and the aluminum subframe 1; at the same time, the multi-circle layout forms a composite shear barrier, which effectively suppresses the relative slip caused by the circumferential impact load under the vehicle's in-situ steering condition, and avoids the plastic elongation of the bolt or the crushing of the subframe mounting surface caused by single-point stress concentration; the second protrusion 321 and the first protrusion 311 are staggered in their orthographic projections on the gasket 3, which can form a spatial cross-locking structure. When the steering impact load attempts to cause circumferential slip, the staggered protrusions can reinforce each other, block the continuous slip path, and improve the torsional strength.

[0033] In some embodiments, the gasket 3 defines a through hole 35 for the bolt 4 to pass through. The first protrusions 311 are spaced apart along the circumference of the through hole 35 and arranged in two circles radially along the through hole 35. The second protrusions 321 are spaced apart along the circumference of the through hole 35 and arranged in two circles radially along the through hole 35. The orthographic projection of each second protrusion 321 on the gasket 3 is offset from the orthographic projection of the first protrusion 311 on the gasket 3.

[0034] It should be noted that the number of circles of the first protrusions 311 and the second protrusions 321 is designed according to the size of the gasket 3 , and can be 2 circles, 3 circles, or 4 circles.

[0035] In some embodiments, the first protrusions 311 of adjacent circles are staggered in the radial extension direction of the through hole 35 ; and the second protrusions 321 of adjacent circles are staggered in the radial extension direction of the through hole 35 .

[0036] It can be understood that the adjacent ring protrusions are staggered in the radial extension direction, and the staggered protrusions form staggered barriers in the axial projection. When the circumferential shear force acts, the inner ring protrusions and the outer ring protrusions provide reverse restraint forces from different radial angles, forming a spatial force couple to resist the torsional load, further improving the anti-slip capability. Especially in the heterogeneous material combination of aluminum subframe, aluminum steering gear and hard gasket, the staggered design changes the pressure distribution of soft aluminum material from continuous band to discrete, avoiding local strain exceeding the ductility limit of aluminum alloy.

[0037] In other embodiments, the first protrusions 311 of adjacent circles are staggered in the radial extension direction of the through hole 35 ; and the second protrusions 321 of adjacent circles are aligned in the radial extension direction of the through hole 35 .

[0038] In other embodiments, the first protrusions 311 of adjacent circles are aligned in the radial extension direction of the through hole 35 ; and the second protrusions 321 of adjacent circles are staggered in the radial extension direction of the through hole 35 .

[0039] In some embodiments, the limiting holes 12 are formed corresponding to the limiting claws, and the first limiting claw 33, the second limiting claw 34, and the bolt 4 are all inserted into the corresponding limiting holes 12. It can be understood that the limiting claws are inserted into the limiting holes 12 around the bolt 4, and the impact load is preferentially transmitted to the limiting claws along the sidewalls of the limiting hole 12, so that the bolt 4 mainly bears pure axial tension, reducing the risk of shear deformation of the bolt.

[0040] Specifically, a limiting claw is provided on one side of the gasket 3 at intervals, and the limiting claw includes a first limiting claw 33 and a second limiting claw 34. Figure 2 The first limiting claw 33 and the second limiting claw 34 can be set on the second surface 32 of the gasket 3. In this case, the limiting hole 12 is located on the subframe 1, and the steering gear 2 is provided with a mounting hole 22 for the bolt 4 to pass through. The bolt 4 is passed through the limiting hole 12, the through hole 35 and the mounting hole 22 to achieve the connection between the subframe 1 and the steering gear 2. The first limiting claw 33, the second limiting claw 34 and the bolt 4 located on the second surface 32 are jointly inserted into the limiting hole 12 of the subframe 1. In other optional solutions, the first limiting claw 33 and the second limiting claw 34 can also be set on the first surface 31 of the gasket 3. In this case, the limiting hole 12 is located on the steering gear 2, and the subframe 1 is provided with a mounting hole 22 for the bolt 4 to pass through. The bolt 4 is passed through the limiting hole 12, the through hole 35 and the mounting hole 22 to achieve the connection between the subframe 1 and the steering gear 2. The first limiting claw 33 , the second limiting claw 34 and the bolt 4 located on the first surface 31 are inserted into the limiting hole 12 of the steering gear 2 .

[0041] In other embodiments, limiting claws are spaced apart on both the first and second surfaces 31, 32 of the gasket 3. The limiting claws on each side include a first limiting claw 33 and a second limiting claw 34. In this case, both the steering gear 2 and the subframe 1 have limiting holes 12. Bolts 4 are inserted through the two limiting holes 12 and the through hole 35 to achieve the connection between the subframe 1 and the steering gear 2. The first limiting claw 33, the second limiting claw 34, and the bolt 4 on each side are collectively inserted into the corresponding limiting hole 12.

[0042] In some embodiments, the extension direction of the first limiting claw 33 and the extension direction of the second limiting claw 34 are parallel to the axial direction of the bolt 4, and one side surface of the first limiting claw 33 and one side surface of the second limiting claw 34 are in contact with the inner wall of the limiting hole 12. The contact design between the limiting claw and the inner wall of the limiting hole 12 can better transfer the impact load to the limiting claw along the side wall of the limiting hole 12.

[0043] In some embodiments, the subframe 1 is an aluminum subframe; the steering gear 2 is an aluminum steering gear; and the gasket 3 is a stainless steel gasket. Using the aluminum subframe 1 and steering gear 2 can effectively reduce the vehicle's own weight.

[0044] In some embodiments, the steering gear 2 has a third surface 21 that contacts the first surface 31. First recesses are formed at intervals on the third surface 21, and the first recesses engage with the first protrusions 311. Specifically, the first recesses are formed by the first protrusions 311 being pressed into the third surface 21 during assembly.

[0045] The subframe 1 has a fourth surface 11, which contacts the second surface 32; second recesses are formed at intervals on the fourth surface 11, which engage and abut against the second protrusions 321; the second recesses are formed by the second protrusions 321 being pressed into the fourth surface 11 during assembly.

[0046] In some embodiments, the first protrusion 311 is cylindrical, and its protruding height is less than the length of any retaining claw. This facilitates the first protrusion 311 to be pressed into the third surface 21 of the steering gear 2 during assembly to form the first recess. It will be appreciated that the first protrusion 311 is configured as a cylinder, and the cylindrical sidewall forms an annular linear contact with the third surface 21, thereby preventing microcracks in the aluminum material at its corners. Furthermore, the cylinder can be formed in one step through standard turning or cold heading, which is more efficient than processing irregularly shaped protrusions.

[0047] Optionally, the first protrusion 311 may also be configured as other three-dimensional structures such as a pyramid or a square column.

[0048] Alternatively, as Figure 4 As shown, the size of each first protrusion 311 is exactly the same.

[0049] Alternatively, as Figure 3 As shown, the size of each first protrusion 311 is not exactly the same.

[0050] In some embodiments, the second protrusion 321 is cylindrical, and its protruding height is less than the length of any retaining claw. This facilitates the second protrusion 321 to be pressed into the fourth surface 11 of the subframe 1 during assembly to form the second recess. It will be appreciated that the cylindrical shape of the second protrusion 321 creates an annular linear contact between the cylindrical sidewall and the third surface 21, preventing microcracks in the aluminum material at its corners. Furthermore, the cylindrical shape can be formed in one step through standard turning or cold heading, resulting in higher processing efficiency compared to special-shaped protrusions.

[0051] Optionally, the second protrusion 321 may also be configured as other three-dimensional structures such as a pyramid or a square column.

[0052] Optionally, the size of each second protrusion 321 is exactly the same.

[0053] Alternatively, as Figure 3 As shown, the size of each second protrusion 321 is not exactly the same.

[0054] In some embodiments, the first protrusion 311 and the second protrusion 321 have the same protrusion height. It is understood that the equal height of the protrusions on both sides allows the axial compression force of the bolt 4 to establish a mirror-symmetrical pressure distribution between the steering gear 2 and the subframe 1, eliminating the risk of unbalanced loading due to height differences.

[0055] In other embodiments, the protrusion heights of the first protrusion 311 and the second protrusion 321 may also be different.

[0056] According to a second aspect of the present application, a vehicle is provided. Figures 1 to 4 , the vehicle includes the above-mentioned vehicle steering system mounting structure.

[0057] The present application provides a vehicle, which includes the above-mentioned vehicle steering system mounting structure, and therefore has all the beneficial effects of the above-mentioned vehicle steering system mounting structure, which will not be described in detail here.

[0058] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0059] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0060] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0061] The above are merely preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A vehicle steering system mounting structure, characterized in that: It comprises a subframe (1), a steering gear (2), a gasket (3) and a bolt (4); the steering gear (2) is mounted on the subframe (1) via the gasket (3) and the bolt (4); The gasket (3) is arranged between the sub-frame (1) and the steering gear (2), and has a first surface (31) and a second surface (32) arranged opposite to each other; The first surface (31) contacts the steering gear (2), and a plurality of first protrusions (311) are arranged at intervals on the first surface (31); The second surface (32) contacts the sub-frame (1), and a plurality of second protrusions (321) are provided at intervals on the second surface (32); The first surface (31) and / or the second surface (32) are provided with limiting claws at intervals, the limiting claws including a first limiting claw (33) and a second limiting claw (34); the steering gear (2) and / or the subframe (1) are provided with a limiting hole (12); the first limiting claw (33) and the second limiting claw (34) are inserted into the limiting hole (12) to guide the gasket (3) to be installed at the limiting hole (12); The bolt (4) passes through the sub-frame (1), the gasket (3) and the steering gear (2), and fixes the steering gear (2) to the sub-frame (1).

2. The vehicle steering system mounting structure according to claim 1, characterized in that: The length of the first limiting claw (33) is different from the length of the second limiting claw (34).

3. The vehicle steering system mounting structure according to claim 1, characterized in that: The gasket (3) is provided with a through hole (35) for the bolt (4) to pass through; the first protrusions (311) are spaced apart in a circumferential direction around the through hole (35) and are arranged in at least two circles along the radial direction of the through hole (35).

4. The vehicle steering system mounting structure according to claim 3, characterized in that: The second protrusions (321) are spaced apart in a circumferential direction around the through hole (35) and are arranged in at least two circles along the radial direction of the through hole (35); the orthographic projections of at least part of the second protrusions (321) on the gasket (3) are staggered with the orthographic projections of at least part of the first protrusions (311) on the gasket (3).

5. The vehicle steering system mounting structure according to claim 4, characterized in that: The first protrusions (311) of adjacent circles are staggered in the radial extension direction of the through hole (35); and / or, The second protrusions (321) of adjacent circles are staggered in the radial extension direction of the through hole (35).

6. The vehicle steering system mounting structure according to claim 1, characterized in that: The limiting hole (12) is located on the auxiliary frame (1), and a mounting hole (22) for the bolt (4) to pass through is provided on the steering gear (2), and the bolt (4) is passed through the limiting hole (12) and the mounting hole (22).

7. The vehicle steering system mounting structure according to claim 6, characterized in that: The extending direction of the limiting claw is parallel to the axial direction of the bolt (4), and one side surface of the limiting claw is in contact with the inner wall of the limiting hole (12).

8. The vehicle steering system mounting structure according to claim 1, characterized in that: The subframe (1) is an aluminum subframe; the steering gear (2) is an aluminum steering gear; and the gasket (3) is a stainless steel gasket.

9. The vehicle steering system mounting structure according to claim 1, characterized in that: The steering gear (2) has a third surface (21), the third surface (21) and the first surface (31) are in contact with each other; the third surface (21) is spaced apart to form a first recess, the first recess abuts against the first protrusion (311); The sub-frame (1) has a fourth surface (11), and the fourth surface (11) and the second surface (32) are in contact with each other; the fourth surface (11) is spaced apart to form a second recess, and the second recess abuts against the second protrusion (321).

10. A vehicle, characterized in that: The vehicle includes the vehicle steering system mounting structure according to any one of claims 1 to 9.

Images