Steering gear assembly, assembling method of steering gear assembly and vehicle

Abstract

The invention discloses a steering gear assembly, an assembling method of the steering gear assembly and a vehicle. The steering input shaft is movably mounted on the steering gear body; the steering plumbing arm is in power connection with the steering input shaft; the locking structure comprises a mounting part and a locking part, the mounting part is mounted on the steering input shaft, the locking part is movably connected with the mounting part, and the locking part is suitable for being selectively locked to abut against the steering gear body when moving relative to the mounting part. According to the steering gear assembly, the locking structure is installed on the steering input shaft, so that the positions of the steering input shaft and the steering drop arm are locked, then alignment of a median line after the steering gear assembly is installed is effectively guaranteed, the driving safety of a vehicle is improved, and the locking structure is simple in structure, convenient to install, better in use effect and wider in application range.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle manufacturing, and in particular, to a steering gear assembly, an assembly method of the steering gear assembly, and a vehicle. Background Art

[0002] When the steering gear leaves the factory, it is equipped with a steering input shaft and an output shaft, and their positions are in the middle position of the steering gear stroke. The middle position of this steering gear needs to be consistent with the middle positions of the steering wheel and the tires. The steering clearance at the middle position of the steering gear is small, which ensures the steering sensitivity of the steering gear. The steering torque at the middle position of the steering gear is large, which suppresses excessive return during the vehicle's return process and at the same time ensures that the driver has a good middle position feeling. When the steering gear enters the production line for assembly, due to assembly errors, usually the middle positions of the steering gear, the tires, and the steering wheel are inconsistent, and problems such as steering deviation, large and insensitive steering clearance, and insufficient left and right steering strokes are likely to occur, reducing driving safety. Therefore, during assembly, the steering rocker arm and the steering drag link can be manually held for assembly, but this method is likely to cause the movement of the steering rocker arm, resulting in inaccurate middle position and there is room for improvement. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. For this purpose, the present invention provides a steering gear assembly, which has a simple structure, is convenient to install, effectively ensures the alignment of the middle line, and improves driving safety.

[0004] The steering gear assembly according to an embodiment of the present invention includes: a steering gear body; a steering input shaft, which is movably installed on the steering gear body; a steering pitman arm, which is power-connected to the steering input shaft; a locking structure, which includes a mounting portion and a locking portion. The mounting portion is installed on the steering input shaft, and the locking portion is movably connected to the mounting portion. The locking portion is adapted to selectively lock and press against the steering gear body when moving relative to the mounting portion.

[0005] By installing the locking structure on the steering input shaft, the steering gear assembly according to an embodiment of the present invention locks the positions of the steering input shaft and the steering pitman arm, thereby effectively ensuring the alignment of the middle line after the steering gear assembly is installed, improving the driving safety of the vehicle, and the locking structure has a simple structure, is convenient to install, has a better use effect, and a wider application range.

[0006] In the steering gear assembly according to some embodiments of the present invention, the mounting portion is provided with a movable hole, the movable hole is open towards the steering gear body, and the locking portion passes through the movable hole and moves in a direction close to or away from the steering gear body.

[0007] The steering gear assembly according to some embodiments of the present invention, wherein the movable hole is configured as a threaded hole, and the locking portion is configured as a stop bolt that is threadedly engaged with the movable hole.

[0008] The steering gear assembly according to some embodiments of the present invention, wherein the mounting portion includes a connecting sleeve and a mounting plate. The connecting sleeve is sleeved outside the steering input shaft, the mounting plate is connected to the connecting sleeve, and the movable hole is formed in the mounting plate.

[0009] The steering gear assembly according to some embodiments of the present invention, wherein the connecting sleeve is formed with a circumferentially open movable opening, and the connecting sleeve includes locking flanges that are oppositely distributed on both sides of the movable opening, and the two locking flanges are adapted to be connected by a connecting member.

[0010] The steering gear assembly according to some embodiments of the present invention, wherein the moving direction of the locking portion relative to the mounting portion is parallel to the axial direction of the steering input shaft.

[0011] The steering gear assembly according to some embodiments of the present invention, wherein the steering gear body forms a mounting plane, at least a part of the steering input shaft extends from the mounting plane, and one end of the locking portion is formed with a pressing plane, and the pressing plane is adapted to abut against the mounting plane.

[0012] The present invention also provides an assembly method for a steering gear assembly.

[0013] The assembly method for a steering gear assembly according to an embodiment of the present invention is applicable to the steering gear assembly described in any one of the above, and the assembly method includes:

[0014] Install the steering gear body on the vehicle frame;

[0015] Install the steering input shaft on the steering gear body, connect the steering input shaft to the steering drag link and adjust the median line of the steering drag link to align with the median line of the steering gear body;

[0016] Install the locking mechanism on the steering input shaft;

[0017] Drive the locking portion of the locking mechanism to move relative to the mounting portion and cause the locking portion to lock and press against the steering gear body.

[0018] The assembly method for a steering gear assembly according to some embodiments of the present invention, after the locking portion locks and presses against the steering gear body, further includes:

[0019] Connect the steering drag link to the front ball joint of the straight tie rod;

[0020] Drive the locking portion to move relative to the mounting portion and cause the locking portion to separate from the steering gear body;

[0021] Disassemble the locking mechanism.

[0022] The present invention also provides a vehicle.

[0023] The vehicle according to an embodiment of the present invention includes the steering gear assembly described in any one of the above.

[0024] The assembly method of the steering gear assembly, the vehicle and the above-mentioned steering gear assembly have the same advantages as those of the prior art, which will not be elaborated herein.

[0025] The additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0027] Figure 1 is a schematic structural diagram of a steering gear assembly according to an embodiment of the present invention Figure 1 ;

[0028] Figure 2 is a schematic structural diagram of a steering gear assembly according to an embodiment of the present invention Figure 2 ;

[0029] Figure 3 is a schematic structural diagram of a locking structure according to an embodiment of the present invention;

[0030] Figure 4 is a schematic flow diagram of an assembly method of a steering gear assembly according to an embodiment of the present invention Figure 1 ;

[0031] Figure 5 is a schematic flow diagram of an assembly method of a steering gear assembly according to an embodiment of the present invention Figure 2 .

[0032] Reference Signs:

[0033] Steering gear assembly 100,

[0034] Locking structure 1, mounting portion 11, connecting sleeve 111, locking flange 112, locking hole 1121, movable opening 113, mounting plate 114, movable hole 115, connecting member 116, locking portion 12, pressing plane 121,

[0035] Steering gear body 2, mounting plane 21, steering input shaft 3, steering drag link 4. DETAILED DESCRIPTION

[0036] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0037] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0038] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0039] Unless otherwise specified, the front-rear direction in this application is the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction is the transverse direction of the vehicle, i.e., the Y direction; and the up-down direction is the vertical direction of the vehicle, i.e., the Z direction.

[0040] Reference will be made below to Figures 1 - 5 Describe a steering gear assembly 100 according to an embodiment of the present invention. The steering gear assembly 100 has a simple structure, is convenient to install, effectively ensures the alignment of the median line, and improves driving safety.

[0041] As Figures 1 - 5 shown, the steering gear assembly 100 according to an embodiment of the present invention includes: a steering gear body 2, a steering input shaft 3, a steering pitman arm 4 and a locking structure 1.

[0042] The steering input shaft 3 is movably mounted on the steering gear body 2. The pitman arm 4 is power-connected to the steering input shaft 3. The locking structure 1 includes a mounting portion 11 and a locking portion 12. The mounting portion 11 is mounted on the steering input shaft 3. The locking portion 12 is movably connected to the mounting portion 11. The locking portion 12 is adapted to selectively lock and press against the steering gear body 2 when moving relative to the mounting portion 11.

[0043] Among them, the steering gear is an important part of the vehicle steering system. The steering gear is arranged between the steering wheel and the steering rocker arm. The steering gear is used to amplify the torque applied by the driver to the steering wheel, reduce the speed, change the direction of force transmission, and then pull the steering wheel to deflect through the steering transmission mechanism, thereby realizing the steering of the vehicle.

[0044] Specifically, the steering gear assembly 100 is provided with a steering gear body 2 and a steering input shaft 3. The steering input shaft 3 is mounted on the steering gear body 2, and the steering input shaft 3 is movable relative to the steering gear body 2. The steering input shaft 3 is connected to the steering wheel. The user can rotate the steering wheel, and then transmit the torque, etc. to the steering input shaft 3 through the steering wheel. The steering gear assembly 100 is also provided with a pitman arm 4. The pitman arm 4 is power-connected to the steering input shaft 3. That is, the torque generated by the user rotating the steering wheel can be conducted to the pitman arm 4 through the steering gear input shaft. The pitman arm 4 is movably connected to the drag link through a mounting ball joint, and the other end of the drag link is power-connected to the front wheel through a mounting ball joint, so as to conduct the torque generated by the steering wheel, etc. to the front wheel through the pitman arm 4, thereby realizing the steering of the tire controlled by the steering wheel.

[0045] Furthermore, the steering gear assembly 100 is also provided with a locking structure 1. The locking structure 1 is provided with a mounting portion 11 and a locking portion 12. The mounting portion 11 is mounted on the steering input shaft 3. That is, the locking structure 1 can be mounted on the steering input shaft 3 through the mounting portion 11. The locking portion 12 is connected to the mounting portion 11, and the locking portion 12 is movable relative to the mounting portion 11. The locking portion 12 is adapted to selectively lock and press against the steering gear body 2 when moving relative to the mounting portion 11. That is, the locking portion 12 can move relative to the mounting portion 11, and the locking portion 12 can move towards the steering gear body 2 relative to the mounting portion 11, or move away from the steering gear body 2 relative to the mounting portion 11.

[0046] When the locking portion 12 moves toward the steering gear body 2 until it is pressed against the steering gear body 2, the locking structure 1 is fixed relative to the steering gear body 2, thereby fixing the steering input shaft 3 and the steering drop arm 4 relative to the steering gear body 2 to play a locking role and ensure the alignment of the center line. When the locking portion 12 moves away from the steering gear body 2 until it is no longer in contact with the steering gear body 2, the locking state is released, and the steering gear assembly 100 can transmit torque etc. normally, and the locking structure 1 is detachable relative to the steering input shaft 3, so that the locking structure 1 can be removed after the steering gear assembly 100 is installed on the vehicle frame, and then used in the installation of another steering gear assembly 100, saving manufacturing costs.

[0047] Therefore, during the installation of the steering gear assembly 100 on the vehicle, the steering input shaft 3 and the steering gear body 2 are actively locked by the locking structure 1, and the center line of the steering vertical arm 4 is always aligned with the center line of the steering gear body 2. After the installation of the vehicle is completed, the locking structure 1 can be removed relative to the steering input shaft 3 and the steering gear body 2, so that when the steering wheel is returned to the center, the center line of the steering vertical arm 4 can be aligned with the center line of the steering gear body 2, thereby ensuring that the left and right turning angles of the steering wheel during vehicle driving correspond to the actual left and right steering angles reached by the wheels, and it is not easy to have problems such as steering deviation, large steering clearance and insensitivity, and insufficient steering left and right travel, so that the steering wheel can accurately control the vehicle and ensure the safety of vehicle driving.

[0048] According to the steering gear assembly 100 of the embodiment of the present invention, the locking structure 1 is installed on the steering input shaft 3, so that the steering input shaft 3 and the steering vertical arm 4 are locked in position, thereby effectively ensuring the alignment of the center line after the steering gear assembly 100 is installed, thereby improving the driving safety of the vehicle, and the locking structure 1 has a simple structure, is easy to install, has a better use effect, and has a wider range of applications.

[0049] In some embodiments, the mounting portion 11 is provided with a movable hole 115 , the movable hole 115 is open toward the steering gear body 2 , and the locking portion 12 is passed through the movable hole 115 and moves toward or away from the steering gear body 2 .

[0050] Specifically, Figure 3 As shown, the locking structure 1 is provided with a locking portion 12 and a mounting portion 11, the mounting portion 11 is mounted on the steering input shaft 3, the locking portion 12 and the mounting portion 11 are movably connected, and the mounting portion 11 is provided with a movable hole 115, the movable hole 115 is configured as a circular through hole, and one end thereof is open toward the steering gear body 2, and the other end is open away from the steering gear body 2, the locking portion 12 is penetrated in the movable hole 115, and can move relative to the movable hole 115 in a direction close to or away from the steering gear body 2.

[0051] Further, when the locking portion 12 moves relative to the moving hole 115 towards the steering gear body 2 until it presses against the steering gear body 2, the locking structure 1 is fixed relative to the steering gear body 2. As a result, the steering input shaft 3 and the steering pitman arm 4 are fixed relative to the steering gear body 2 to play a locking role and ensure the alignment of the center line. When the locking portion 12 moves relative to the moving hole 115 away from the steering gear body 2 until it is not in contact with the steering gear body 2, the locked state is released, and the steering gear assembly 100 can normally conduct torque and the like, with convenient operation.

[0052] In some embodiments, the moving hole 115 is configured as a threaded hole, and the locking portion 12 is configured as a stop bolt that is in threaded cooperation with the moving hole 115.

[0053] Specifically, the mounting portion 11 is provided with a moving hole 115, the locking portion 12 is installed in the moving hole 115 and is movable relative to the moving hole 115. The inner wall of the moving hole 115 is provided with a threaded hole, and the locking portion 12 is provided as a stop bolt. The stop bolt can cooperate with the threaded hole to play a stopping role. During the installation process, the stop bolt is rotated into the moving hole 115. When the stop bolt is rotated to a certain position, the threads on the inner wall of the moving hole 115 and the threads on the stop bolt cooperate to generate friction. Thus, when the stop bolt is installed in the moving hole 115, the stop bolt can be prevented from loosening, and the reliability when the locking portion 12 presses against the steering gear body 2 can be improved, ensuring the alignment of the center line after the steering gear assembly 100 is installed. The length of the locking portion 12 can be replaced according to actual usage conditions to adapt to different steering input shafts 3.

[0054] In some embodiments, the mounting portion 11 includes a connecting sleeve 111 and a mounting plate 114. The connecting sleeve 111 is sleeved outside the steering input shaft 3, the mounting plate 114 is connected to the connecting sleeve 111, and the moving hole 115 is opened in the mounting plate 114.

[0055] Specifically, as Figure 3 shown, the locking structure 1 is provided with a mounting portion 11. The mounting portion 11 is provided with a connecting sleeve 111. The connecting sleeve 111 is sleeved outside the steering input shaft 3 and is fixedly arranged relative to the steering input shaft 3, that is, the mounting portion 11 is fixedly installed on the steering input shaft 3 through the connecting sleeve 111. The mounting portion 11 is further provided with a mounting plate 114. The mounting plate 114 is provided as a plate-like structure. The mounting plate 114 is connected to the outer wall of the connecting sleeve 111 and extends outward relative to the outer wall of the connecting sleeve 111. The moving hole 115 is arranged on the mounting plate 114, that is, the locking portion 12 is movably connected to the mounting plate 114. Setting the mounting plate 114 outside the connecting sleeve 111 enables the locking portion 12 not to affect the steering input shaft 3 and the like when moving relative to the moving hole 115, ensures that the steering gear body 2 and the like can be normally used after locking is completed, and facilitates the operation of the locking portion 12, saving operation time.

[0056] In some embodiments, the connecting sleeve 111 is formed with a circumferentially open movable opening 113, and the connecting sleeve 111 includes locking flanges 112 distributed oppositely on both sides of the movable opening 113, and the two locking flanges 112 are adapted to be connected by a connecting member 116.

[0057] Specifically, as Figure 3 shown, the mounting portion 11 is provided with a mounting plate 114 and a connecting sleeve 111. The connecting sleeve 111 is sleeved outside the steering input shaft 3, and the connecting sleeve 111 is provided with a movable opening 113 in its circumference. The movable opening 113 is open along the radial direction, so that the connecting sleeve 111 can be sleeved outside the steering input shafts 3 of different sizes. The locking structure 1 is fixedly connected to the steering input shaft 3 through the connecting sleeve 111. Furthermore, the locking structure 1 can be connected to the steering input shafts 3 of different sizes, making the locking structure 1 universal, improving the applicable range of the locking structure 1, and saving manufacturing costs.

[0058] Furthermore, locking flanges 112 are oppositely arranged on both sides of the movable opening 113. The locking flanges 112 are provided with locking holes 1121 for installing the connecting member 116. The connecting member 116 can be set as a locking bolt. After the connecting sleeve 111 is installed on the steering input shaft 3, the connecting member 116 can be rotated to make the two locking flanges 112 relatively approach, thereby reducing the size of the movable opening 113. The smaller the size of the movable opening 113, the smaller the inner diameter size of the connecting sleeve 111. Furthermore, the connecting sleeve 111 is relatively fixed to the steering input shaft 3. And when the connecting member 116 is rotated to expand the movable opening 113, the connecting sleeve 111 can move relative to the steering input shaft 3. Furthermore, the locking structure 1 can be separated from the steering input shaft 3, so that the locking structure 1 can be reused, saving usage costs.

[0059] In some embodiments, the moving direction of the locking portion 12 relative to the mounting portion 11 is parallel to the axial direction of the steering input shaft 3.

[0060] Specifically, the mounting portion 11 is provided with a movable hole 115. The locking portion 12 passes through the movable hole 115 and can move relative to the movable hole 115 in a direction close to or away from the steering gear body 2. At the same time, the moving direction of the locking portion 12 relative to the mounting portion 11 is parallel to the axial direction of the steering input shaft 3, that is, the movement trajectory formed when the locking portion 12 moves towards the steering gear body 2 and away from the steering gear body 2 is parallel to the axial direction of the steering input shaft 3, so that when the locking portion 12 presses against the steering gear body 2, the acting direction of the acting force pressing against the steering gear body 2 is also parallel to the axial direction of the steering input shaft 3.

[0061] After the steering input shaft 3 is locked by the locking structure 1, the torque applied to the steering input shaft 3 causes the steering input shaft 3 to have a tendency to rotate, thereby generating a steering force. This acting force can be transmitted to the locking portion 12. The moving direction of the locking portion 12 relative to the mounting portion 11 is set to be parallel to the axis direction of the steering input shaft 3, so that the acting force can be transmitted along the direction parallel to the axis of the steering input shaft 3 when transmitted to the locking portion 12, avoiding the bending of the locking portion 12 caused by the deviation of the acting force path and affecting the service life.

[0062] In some embodiments, the steering gear body 2 forms a mounting plane 21, at least a part of the steering input shaft 3 extends from the mounting plane 21, and one end of the locking portion 12 is formed with a pressing plane 121, and the pressing plane 121 is adapted to abut against the mounting plane 21.

[0063] Specifically, as Figures 1 - 3 shown, the steering input shaft 3 is movably mounted on the steering gear body 2. The steering gear body 2 forms a mounting plane 21, and at least a part of the steering input shaft 3 extends from the mounting plane 21. The locking structure 1 is fixedly connected to the part of the steering input shaft 3 extending from the mounting plane 21 through a connecting sleeve 111 to lock the steering input shaft 3 through the locking structure 1. One end of the locking portion 12 close to the steering gear body 2 is provided with a pressing plane 121. When the locking portion 12 moves relative to the moving hole 115 towards the steering gear body 2 and abuts against the steering gear body 2, the pressing plane 121 abuts against the mounting plane 21. It is set that the pressing plane 121 can increase the contact area with the mounting plane 21, thereby improving the locking reliability, and the pressing plane 121 is not easy to damage the mounting plane 21 and prolongs the service life.

[0064] The present invention also provides an assembly method for a steering gear assembly 100.

[0065] The assembly method for the steering gear assembly 100 according to the embodiments of the present invention is applicable to the steering gear assembly 100 in any of the above items, and the assembly method includes:

[0066] A100. Mount the steering gear body 2 on the vehicle frame;

[0067] A200. Mount the steering input shaft 3 on the steering gear body 2, and connect the steering input shaft 3 with the steering pitman arm 4 and adjust the median line of the steering pitman arm 4 to be aligned with the median line of the steering gear body 2;

[0068] A300. Mount the locking structure 1 on the steering input shaft;

[0069] A400. Drive the locking portion 12 of the locking structure 1 to move relative to the mounting portion 11 and make the locking portion 12 lock and press against the steering gear body 2.

[0070] Specifically, asFigure 4 As shown, the steering gear body 2 needs to be installed on the vehicle frame through structures such as bolts during actual use. The steering input shaft 3 is movably installed on the steering gear body 2 and partially extends out of the installation plane 21. The steering drag link 4 is power-connected to the steering input shaft 3. After installation, the median line of the steering drag link 4 can be adjusted to align with the median line of the steering gear body 2, and the locking structure 1 is fixedly connected to the steering input shaft 3 through the connecting sleeve 111. Then, the locking portion 12 is adjusted to move towards the steering gear body 2 relative to the movable hole 115 until it abuts against the steering gear body 2, so that the steering input shaft 3 and the steering drag link 4 are fixed relative to the steering gear body 2 to play a locking role and ensure the alignment of the median lines.

[0071] According to the assembly method of the steering gear assembly 100 according to the embodiment of the present invention, by installing the locking structure 1 on the steering input shaft 3, the positions of the steering input shaft 3 and the steering drag link 4 are locked, thereby effectively ensuring the alignment of the median lines after the steering gear assembly 100 is installed, improving the driving safety of the vehicle, and the locking structure 1 has a simple structure, convenient installation, better use effect and wider application range.

[0072] In some embodiments, after the locking portion 12 locks and abuts against the steering gear body 2, it further includes:

[0073] A500. Connect the steering drag link 4 to the front ball joint of the straight tie rod;

[0074] A600. Drive the locking portion 12 to move relative to the installation portion 11 and make the locking portion 12 separate from the steering gear body 2;

[0075] A700. Remove the locking structure 1.

[0076] Specifically, as Figure 5 shown, when the steering gear body 2 is installed on the vehicle frame and the locking structure 1 fixes the steering input shaft 3 and the steering drag link 4 relative to the steering gear body 2, the steering drag link 4 can be connected to the straight tie rod through the front ball joint. Then, when the steering gear assembly 100 is connected to the straight tie rod, the median line of the steering drag link 4 is in an aligned state with the median line of the steering gear body 2. And after the steering drag link 4 is connected to the front ball joint of the straight tie rod, the locking portion 12 can be moved away from the steering gear body 2 relative to the movable hole 115 until it does not contact the steering gear body 2, thereby releasing the locked state. Then, the locking structure 1 is removed from the steering input shaft 3 by adjusting the connecting member 116, and thus the installation of the steering gear assembly 100 is completed, and the locking structure 1 can be reused to save the use cost.

[0077] The present invention also proposes a vehicle.

[0078] The vehicle according to the embodiment of the present invention includes the steering gear assembly 100 according to any one of the above.

[0079] A vehicle according to an embodiment of the present invention is provided with a steering gear assembly 100. By installing a locking structure 1 on the steering input shaft 3, the steering input shaft 3 and the steering pitman arm 4 are locked in position, thereby effectively ensuring the alignment of the median line after the installation of the steering gear assembly 100, improving the driving safety of the vehicle. Moreover, the structure of the locking structure 1 is simple, the installation is convenient, the use effect is better, and the applicable range is wider.

[0080] In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0081] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A steering gear assembly, characterized in that, Comprising: Steering gear body; Steering input shaft, which is movably installed on the steering gear body; Steering drop arm, which is power-connected to the steering input shaft; Locking structure, the locking structure includes a mounting part and a locking part, the mounting part is installed on the steering input shaft, the locking part is movably connected to the mounting part, and the locking part is adapted to selectively lock and press against the steering gear body when moving relative to the mounting part.

2. The steering gear assembly according to claim 1, characterized in that, The mounting part is provided with a movable hole, the movable hole opens towards the steering gear body, and the locking part passes through the movable hole and moves in a direction close to or away from the steering gear body.

3. The steering gear assembly according to claim 2, characterized in that, The movable hole is configured as a threaded hole, and the locking part is configured as a stop bolt that is threadedly engaged with the movable hole.

4. The steering gear assembly according to claim 2, characterized in that, The mounting part includes a connecting sleeve and a mounting plate, the connecting sleeve is sleeved outside the steering input shaft, the mounting plate is connected to the connecting sleeve, and the movable hole is opened on the mounting plate.

5. The steering gear assembly according to claim 4, characterized in that, The connecting sleeve forms a circumferentially open movable opening, and the connecting sleeve includes locking flanges distributed oppositely on both sides of the movable opening, and the two locking flanges are adapted to be connected by a connecting member.

6. The steering gear assembly according to claim 1, characterized in that, The moving direction of the locking part relative to the mounting part is parallel to the axial direction of the steering input shaft.

7. The steering gear assembly according to claim 1, characterized in that, The steering gear body forms a mounting plane, at least part of the steering input shaft extends from the mounting plane, one end of the locking part forms a pressing plane, and the pressing plane is adapted to press against the mounting plane.

8. An assembly method of a steering gear assembly, characterized in that, Applicable to the steering gear assembly according to any one of claims 1-7, and the assembly method includes: Install the steering gear body on the vehicle frame; Install the steering input shaft on the steering gear body, connect the steering input shaft to the steering drop arm and adjust the median line of the steering drop arm to be aligned with the median line of the steering gear body; Install the locking mechanism on the steering input shaft of the steering gear; Drive the locking part of the locking mechanism to move relative to the mounting part and make the locking part lock and press against the steering gear body.

9. The assembly method of the steering gear assembly according to claim 8, characterized in that, After the locking part locks and presses against the steering gear body, it further includes: Connect the steering drop arm to the front ball joint of the drag link; Drive the locking part to move relative to the mounting part and make the locking part separate from the steering gear body; Remove the locking mechanism.

10. A vehicle, characterized in that, Including the steering gear assembly according to any one of claims 1-7.

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