Arrangement structure of a steering gear for an automobile

Abstract

The present invention relates to a layout structure of an automobile steering gear, comprising a subframe, a steering gear connected to the subframe, a mounting sleeve for mounting the steering gear on the subframe, and an adjustment and fixing mechanism for fixing the mounting sleeve; the adjustment and fixing mechanism comprises an adjustment structure and a positioning pin, the adjustment structure is sleeved on the positioning pin and meshes with the positioning pin; the adjustment structure is fixedly connected to the mounting sleeve, and the positioning pin is connected to the subframe. The layout structure of the automobile steering gear provided by the present invention can realize the angle adjustment of the steering gear by setting the adjustment and fixing mechanism, and can realize the height adjustment of the steering gear by setting the mounting sleeve, and only needs to redevelop the mounting sleeve, positioning pin and dust cover, thereby reducing the development cost and shortening the development cycle.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile equipment, and in particular to an arrangement structure of an automobile steering gear. Background Art

[0002] The steering system of a car is the core component of its chassis. It plays a key role in the performance and steering performance of the entire vehicle, and also has an important impact on the cycle and cost of vehicle development.

[0003] Since different models have different requirements for the height, angle, etc. of the steering system, the steering systems of different models cannot share the same platform. Since the pitch angle of the steering system needs to be changed, the steering system shell needs to be redesigned. The development cost is as high as about 18 million, and the development cycle takes about 8 months.

[0004] In order to transmit power to the rear axle, four-wheel drive models have an additional transfer case compared to two-wheel drive models. The layout of the transfer case is limited by the height of the steering system and is more difficult to arrange. Especially when arranging a large-size, high-torque transfer case, there is often interference between the transfer case and the steering system.

[0005] In order to achieve the sharing of steering systems, the general compromise solution is to redevelop the subframe to adapt to the changes in the pitch angle of the steering system to match different vehicle models. The development cost is reduced from about 18 million to about 10 million, and the development cycle still takes 8 months.

[0006] In order to arrange the transfer case of the four-wheel drive vehicle, the transfer case and the entire powertrain have to be raised to make room. As a result, the center of gravity of the vehicle is raised, which is not conducive to the handling performance of the vehicle and is also not conducive to the protection of passengers in the front cabin. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a layout structure of an automobile steering gear, which does not require the redevelopment of a subframe and a steering gear, thereby reducing development costs and shortening the development cycle.

[0008] In order to solve the above technical problems, the present invention provides an arrangement structure of an automobile steering gear, comprising a subframe, a steering gear connected to the subframe, a mounting sleeve for mounting the steering gear on the subframe, and an adjusting and fixing mechanism for fixing the mounting sleeve;

[0009] The adjusting and fixing mechanism comprises an adjusting structure and a positioning pin, wherein the adjusting structure is sleeved on the positioning pin and meshes with the positioning pin;

[0010] The adjusting structure is fixedly connected to the mounting sleeve, and the positioning pin is connected to the auxiliary frame.

[0011] Preferably, the sub-frame is provided with a guide groove, which is parallel to the axial direction of the mounting sleeve and has a width greater than the outer diameter of the mounting sleeve.

[0012] Preferably, a strip-shaped mounting hole is provided on the lower plate of the sub-frame, and the strip-shaped mounting hole is located below the guide groove.

[0013] Preferably, one end of the mounting sleeve extends into the guide groove and the strip-shaped mounting hole in sequence and is fixed to the strip-shaped mounting hole by bolts, and the other end is fixedly mounted on the steering gear.

[0014] Preferably, the outer diameter of the mounting sleeve matches the width of the strip-shaped mounting hole;

[0015] The outer diameter of the mounting sleeve is smaller than the length of the strip-shaped mounting hole.

[0016] Preferably, the adjustment structure includes a gear ring and a first tooth structure arranged on the inner wall of the gear ring, the shape and size of the positioning pin match the shape and size of the gear ring, and a second tooth structure is provided on the outer wall of the positioning pin, and the first tooth structure and the second tooth structure are meshed with each other.

[0017] Preferably, the number of the first tooth structures is 60-360.

[0018] Preferably, the number of the first tooth structures is 60, 72, 90, 120, 180 or 360.

[0019] Preferably, the adjustment structure comprises a connection block fixed to the mounting sleeve, the connection block is provided with a through hole, and the gear ring is provided on an inner wall of the through hole.

[0020] Preferably, it also includes a dust cover, which is sleeved on the steering gear and includes a support member and a dust cover body fixed on the support member;

[0021] The support member is a tubular structure, which is sleeved on the input shaft of the steering gear, and the dustproof body is fixed on the top of the support member.

[0022] The implementation of the present invention has the following beneficial effects:

[0023] 1. The layout structure of the automobile steering gear provided by the present invention can realize the angle adjustment of the steering gear by setting the adjusting and fixing mechanism, and can realize the height adjustment of the steering gear by setting the mounting sleeve. It only needs to redevelop the mounting sleeve, positioning pin and dust cover, which reduces the development cost to 160,000 yuan and shortens the development cycle to 1 month, thereby reducing the development cost and shortening the development cycle.

[0024] 2. The layout structure of the automobile steering gear provided by the present invention allows users to achieve angle adjustment by rotating different numbers of first tooth structures according to the needs of the actual vehicle model, and realizes the quantification of angle adjustment. The angle adjustment is convenient, and compared with traditional blind adjustment, the adjustment of the present invention is more standardized and more standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the arrangement structure of the automobile steering gear of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the arrangement structure of the automobile steering gear of the present invention, in which the mounting sleeve is arranged on the auxiliary frame;

[0027] Figure 3 It is a partial structural schematic diagram of the arrangement structure of the automobile steering gear of the present invention;

[0028] Figure 4 It is a partial structural schematic diagram of a subframe of the arrangement structure of the automobile steering gear of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the adjustment structure of the arrangement structure of the automobile steering gear of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the adjustment and fixing mechanism of the arrangement structure of the automobile steering gear of the present invention;

[0031] Figure 7 It is a partial structural schematic diagram of another viewing angle of the arrangement structure of the automobile steering gear of the present invention. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention.

[0033] like Figures 1 to 3 As shown, an arrangement structure of an automobile steering gear of the present invention comprises a subframe 1, a steering gear 2 connected to the subframe 1, a mounting sleeve 3 for mounting the steering gear 2 on the subframe 1, and an adjusting and fixing mechanism 4 for fixing the mounting sleeve 3;

[0034] The adjusting and fixing mechanism 4 comprises an adjusting structure 41 and a positioning pin 42, wherein the adjusting structure 41 is sleeved on the positioning pin 42 and meshes with the positioning pin 42;

[0035] The adjusting structure 41 is fixedly connected to the mounting sleeve 3 , and the positioning pin 42 is connected to the sub-frame 1 .

[0036] The subframe 1 is used to install the steering gear 2, so that the steering gear 2 can be adjusted in height and angle on the subframe 1, meeting the installation requirements of the steering gear 2 of various vehicle models, improving the versatility of the steering gear 2, shortening the R&D cycle, and reducing development costs.

[0037] like Figures 2 to 4 As shown, in order to facilitate the installation of the guiding sleeve, a guiding groove 11 is provided on the subframe 1, which is parallel to the axial direction of the installing sleeve 3 and has a width greater than the outer diameter of the installing sleeve 3. The installing sleeve 3 extends into the guiding groove 11, and while guiding the installing sleeve 3, it is ensured that the installing sleeve 3 has a certain movable space inside the guiding groove 11, so as to facilitate the angle adjustment of the steering gear 2.

[0038] Correspondingly, in order to fix the mounting sleeve 3, a strip mounting hole 12 is provided on the lower plate of the subframe 1, and the strip mounting hole 12 is located below the guide groove 11, and the mounting sleeve 3 extends into the guide groove 11 and the strip mounting hole 12 in turn, and is fixed to the strip mounting hole 12 by bolts, thereby achieving the fixation of the mounting sleeve 3. At the same time, the angle of the mounting sleeve 3 can also be adjusted according to actual needs.

[0039] The steering gear 2 is fixed to the sub-frame 1 through the mounting sleeve 3, and the height and angle of the steering gear 2 can be adjusted according to actual needs. The specific structure of the steering gear 2 is a conventional and practical feature in the art and will not be described herein.

[0040] The mounting sleeve 3 is used to mount the steering gear on the subframe 1. One end of the mounting sleeve 3 extends into the strip mounting hole 12 through the guide groove 11 and is fixed by bolts. The other end is used to fix the steering gear 2. Since different vehicle models have different height requirements for steering gears, in this embodiment, the height of the steering gear 2 can be changed by directly selecting mounting sleeves 3 of different lengths, thereby realizing the height adjustment of the steering gear 2 to match the installation requirements of steering gears of different vehicle models.

[0041] It should be noted that the outer diameter of the mounting sleeve 2 matches the width of the strip mounting hole 12, and the outer diameter of the mounting sleeve 2 is smaller than the length of the strip mounting hole 12, ensuring that the mounting sleeve 3 can move in the length direction of the strip mounting hole 12, thereby realizing the angle adjustment of the mounting sleeve 3. Since the steering gear 2 is fixed on the mounting sleeve 3, the angle adjustment of the steering gear 2 is realized.

[0042] like Figure 3 As shown, the adjusting and fixing mechanism 4 is used to adjust the angle of the mounting sleeve 3 and then fix it, so that the steering gear can match different vehicle models without redeveloping the subframe or the steering gear 2. It includes an adjusting structure 41 and a locating pin 42. The adjusting structure 41 is fixedly connected to the mounting sleeve 3, and is sleeved on the locating pin 42, and meshes with the locating pin 42.

[0043] Specifically, Figure 5 As shown, the adjustment structure 41 includes a connection block 411, a tooth ring 412 provided on the connection block 411, and a first tooth structure 413 provided on the inner wall of the tooth ring 412. The connection block 412 is welded and fixed to the installation sleeve 3. Specifically, a through hole is provided on the connection block, and the tooth ring is provided on the inner wall of the through hole, thereby realizing a fixed connection between the adjustment structure 41 and the installation sleeve 3. A plurality of first tooth structures 413 are provided on the inner wall of the tooth ring 412. The specific number of the first tooth structures 413 is set according to actual needs, such as the number of the first tooth structures 413 is 60-360. Specifically, 60, 72, 90, 120, 180 or 360.

[0044] like Figure 6 As shown, the locating pin 42 is fixed on the sub-frame 1, and its shape and size match the shape and size of the gear ring 412, and a second tooth structure 421 is provided on its outer wall, the first tooth structure 413 and the second tooth structure 421 are meshed with each other, and the gear ring 412 is sleeved on the locating pin 42, thereby realizing the fixation between the locating pin 42 and the adjustment structure 41, thereby further realizing the fixation between the mounting sleeve 3 and the sub-frame 1.

[0045] It should be noted here that, since the first tooth structure 413 and the second tooth structure 421 are meshed with each other, the fixing between the adjustment structure 41 and the positioning pin 42 is achieved, thereby achieving the fixing of the mounting sleeve 3 and the subframe 1. When the angle of the steering gear 2 needs to be adjusted, the adjustment structure 41 is removed from the positioning pin 42, and a first tooth structure 413 is rotated, and the mounting sleeve 3 is rotated by a corresponding angle. The user can directly adjust the corresponding first tooth structure 413 according to actual needs, thereby achieving the quantitative adjustment of the angle. For example, when the number of the first tooth structures 413 is 72, each time a first tooth structure 413 is rotated, the mounting sleeve 3 and the steering gear 2 are rotated by 5°. Therefore, the user can rotate different numbers of first tooth structures 413 according to the needs of the actual vehicle model to achieve angle adjustment, and achieve the quantitative adjustment of the angle, and the angle adjustment is convenient. Compared with the traditional blind adjustment, the adjustment of the present invention is more standardized and more standard.

[0046] It also includes a dust cover 5, which is arranged on the steering gear 2. When the length of the mounting sleeve 3 is changed, the height of the dust cover 5 needs to be adjusted accordingly. In this embodiment, Figure 7 As shown, the dust cover 5 is mounted on the steering gear 2, and includes a support member 51 and a dust cover body 52 fixed on the support member 51. The support member 51 is a tubular structure, which is mounted on the input shaft of the steering gear 2. Support members 51 of different lengths can be selected according to actual needs. The dust cover body 52 is fixed to the top of the support member 51, so the height of the dust cover 5 can be adjusted by changing the length of the support member 51.

[0047] The arrangement structure of the automobile steering gear provided by the present invention can realize the angle adjustment of the steering gear 2 by setting the adjusting and fixing mechanism 4, and can realize the height adjustment of the steering gear 2 by setting the mounting sleeve 3. It only needs to redevelop the mounting sleeve 3, the positioning pin 42 and the dust cover 5, which reduces the development cost to 160,000 yuan and shortens the development cycle to 1 month, thereby reducing the development cost and shortening the development cycle.

[0048] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An arrangement structure of a vehicle steering gear, characterized in that: The vehicle comprises a sub-frame, a steering gear connected to the sub-frame, a mounting sleeve for mounting the steering gear on the sub-frame, and an adjusting and fixing mechanism for fixing the mounting sleeve; The adjusting and fixing mechanism comprises an adjusting structure and a positioning pin, wherein the adjusting structure is sleeved on the positioning pin and meshes with the positioning pin; The adjustment structure is fixedly connected to the mounting sleeve, and the positioning pin is connected to the subframe; The auxiliary frame is provided with a guide groove, which is parallel to the axial direction of the mounting sleeve and has a width greater than the outer diameter of the mounting sleeve; A strip-shaped mounting hole is provided on the lower plate of the sub-frame, and the strip-shaped mounting hole is located below the guide groove; The adjustment structure includes a gear ring and a first tooth structure arranged on the inner wall of the gear ring. The shape and size of the positioning pin match the shape and size of the gear ring. A second tooth structure is arranged on the outer wall of the positioning pin. The first tooth structure and the second tooth structure are meshed with each other.

2. The arrangement structure of the automobile steering gear according to claim 1, characterized in that: One end of the mounting sleeve extends into the guide groove and the strip mounting hole in sequence and is fixed inside the strip mounting hole by bolts, and the other end is fixedly mounted on the steering gear.

3. The arrangement structure of the automobile steering gear according to claim 1, characterized in that: The outer diameter of the mounting sleeve matches the width of the strip-shaped mounting hole; The outer diameter of the mounting sleeve is smaller than the length of the strip-shaped mounting hole.

4. The arrangement structure of the automobile steering gear according to claim 1, characterized in that: The number of the first tooth structures is 60-360.

5. The arrangement structure of the automobile steering gear according to claim 1, characterized in that: The number of the first tooth structures is 60, 72, 90, 120, 180 or 360.

6. The arrangement structure of the automobile steering gear according to claim 1, characterized in that: The adjustment structure comprises a connection block fixed to the mounting sleeve, the connection block is provided with a through hole, and the gear ring is arranged on the inner wall of the through hole.

7. The arrangement structure of the automobile steering gear according to claim 1, characterized in that: It also includes a dust cover, which is sleeved on the steering gear and includes a support member and a dust cover body fixed on the support member; The support member is a tubular structure, which is sleeved on the input shaft of the steering gear, and the dustproof body is fixed on the top of the support member.

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