Steering engine assembly disassembling and assembling device and using method

Abstract

The invention relates to the technical field of steering engines, and discloses a steering engine assembly disassembling and assembling device and a using method.The steering engine assembly disassembling and assembling device comprises a moving trolley, two fixing assemblies, a second lifting table, a sliding rail and a fastening assembly.The fixing frame is used for fixing a steering engine assembly, the first lifting table is arranged on the moving trolley, and the sliding rail is installed on the second lifting table; the fastening assembly is arranged on the sliding rail in a sliding mode, the steering gear assembly is installed on the fixing frame, the fastening assembly slides relative to the sliding rail, the second lifting table drives the fastening assembly to ascend, the fastening assembly makes contact with the installation nut and is tightened, the second lifting table drives the fastening assembly to descend, the fastening assembly is disengaged, and split charging of the steering gear assembly is completed. The movable trolley is pushed to the position of the frame, the first lifting table drives the steering gear assembly to ascend and descend, the steering gear assembly and the frame are assembled, the steering gear assembly can be assembled, disassembled and replaced, the movable and convenient transportation function is achieved, and the labor and time cost is saved.

Description

Technical Field

[0001] This invention relates to the field of steering gear technology, and more particularly to a steering gear assembly disassembly and assembly device and its usage method. Background Technology

[0002] In the automotive manufacturing and repair industry, the steering gear assembly, as a core component of the vehicle chassis system, directly impacts production efficiency and maintenance costs due to the ease and safety of its assembly and disassembly. Currently, the steering gear assembly is typically installed at the bottom of the vehicle. Due to the limited chassis space and the structural complexity of the components themselves, the steering gear and its related components are generally pre-assembled into sub-assemblies using offline methods during the vehicle assembly process. After sub-assembly, the steering gear sub-assembly is hoisted to the corresponding installation position at the bottom of the frame using overhead cranes or other lifting equipment. Multiple operators then work together under the vehicle to perform positioning, alignment, and fastening operations, ultimately achieving full assembly with the frame.

[0003] However, the existing methods for installing and disassembling steering gear assemblies have significant technical drawbacks in practice. First, due to the considerable weight of the sub-assemblies, both hoisting and assembly on the assembly line and disassembly and transportation in maintenance scenarios require at least 3 to 4 operators working simultaneously, resulting in high labor costs. Second, during disassembly, the weight of the steering gear assembly necessitates multiple operators holding it up from under the vehicle for extended periods, while one person performs delicate operations such as loosening bolts, further increasing labor costs. Summary of the Invention

[0004] According to one aspect of the present invention, a steering gear assembly disassembly and assembly device is provided to solve the above-mentioned problems existing in the assembly and disassembly of steering gear assemblies in the related art.

[0005] To address the aforementioned problems in the existing technology, the present invention adopts the following technical solution:

[0006] Steering gear assembly disassembly and assembly device, including:

[0007] Mobile cart;

[0008] Two fixed components are arranged at intervals. Each fixed component includes a first lifting platform and a fixed frame disposed on the first lifting platform. The fixed frame is used to fix the steering gear assembly. The first lifting platform is disposed on the mobile trolley and is used to drive the fixed frame to lift.

[0009] A second lifting platform is located between the two fixed components and is disposed on the mobile trolley;

[0010] A slide rail, which is installed on the second lifting platform;

[0011] A fastening assembly is slidably disposed on the slide rail and is used to fasten the mounting nuts of the steering gear assembly.

[0012] As an optional technical solution, the fastening assembly includes a sliding seat, a torque tightening toolbox, and a sleeve. The sliding seat is slidably connected to the slide rail, the torque tightening toolbox is disposed on the sliding seat, and the sleeve is connected to the output end of the torque tightening toolbox, so that the sleeve can tighten the mounting nut.

[0013] As an optional technical solution, the steering gear assembly disassembly and assembly device further includes a control component, which includes a controller and a control circuit board electrically connected to the controller. The controller is installed on the mobile trolley, and the control circuit board is used to control the opening or closing of the first lifting platform and the second lifting platform.

[0014] As an optional technical solution, the fixing frame includes a support plate and a bracket. The bracket is fixedly installed on the first lifting platform, and the support plate is disposed on the bracket and used to fix the steering gear assembly.

[0015] As an optional technical solution, the steering gear assembly disassembly and assembly device further includes a connector, the fixing bracket has a mounting hole, and the connector passes through the mounting hole and is fixedly connected to the steering gear assembly.

[0016] As an optional technical solution, the steering gear assembly disassembly and assembly device further includes a battery assembly, which includes a battery and a charging interface. The battery is located inside the mobile trolley and is used to supply power to the first lifting platform and the second lifting platform. The charging interface is integrated with the battery and is located on the outer shell of the mobile trolley. The charging interface is used to connect to mains power.

[0017] As an optional technical solution, the mobile vehicle includes a frame and multiple wheels, with the multiple wheels rotatably mounted on the bottom of the frame.

[0018] As an optional technical solution, the steering gear assembly disassembly device also includes a handle, which is mounted on the vehicle frame.

[0019] According to another aspect of the present invention, a method of using a steering gear assembly disassembly and assembly device is provided. By implementing the steering gear assembly disassembly and assembly device as described above, the method of using the steering gear assembly disassembly and assembly device includes:

[0020] S100: The steering gear assembly is fixedly installed on the mounting frame;

[0021] S200: The fastening assembly is slidable on the slide rail, so that the fastening assembly is aligned with the mounting nut;

[0022] S300: The fastening assembly can contact the mounting nut under the action of the second lifting platform, and the fastening assembly tightens and fixes the mounting nut.

[0023] S400: Under the action of the second lifting platform, the fastening assembly is separated from the steering gear assembly;

[0024] S500: The mobile trolley moves to the bottom of the frame, and under the action of the first lifting platform, the steering gear assembly and the frame are assembled together.

[0025] As an optional technical solution, the method of using the steering gear assembly disassembly and assembly device, specifically S100, includes:

[0026] S101: The mobile trolley is fixed to the ground, and the bracket of the steering gear assembly is fixedly installed on the fixed frame through the connector;

[0027] S102: Assemble the steering control arm, steering tie rod, power steering gear, and mounting nut of the steering gear assembly onto the bracket.

[0028] The steering gear assembly disassembly and assembly device and method provided by the present invention have at least the following beneficial effects:

[0029] This steering gear assembly disassembly and assembly device includes a mobile trolley, two fixed components, a second lifting platform, a slide rail, and fastening components. The fixed frame is used to secure the steering gear assembly. The first lifting platform is mounted on the mobile trolley, the slide rail is mounted on the second lifting platform, and the fastening components are slidably mounted on the slide rail. The steering gear assembly is installed on the fixed frame, with the fastening components sliding relative to the slide rail. The second lifting platform then raises the fastening components, allowing them to contact and tighten the mounting nuts to achieve the required torque. Next, the second lifting platform lowers the fastening components, disengaging them and completing the disassembly of the steering gear assembly. The mobile trolley is then moved to the position on the chassis, aligning the bracket holes with the chassis holes. The first lifting platform then raises and lowers the steering gear assembly on the fixed frame, allowing the steering gear assembly to be assembled with the chassis. This steering gear assembly disassembly and assembly device enables the installation, disassembly, and replacement of the steering gear assembly. It is versatile, mobile, and easy to transport, saving labor and time costs.

[0030] The method of using this steering gear assembly disassembly and assembly device is as follows: The steering gear assembly is fixedly mounted on the mounting bracket. The fastening component can slide on the slide rail, aligning with the mounting nut. Under the action of the second lifting platform, the fastening component contacts the mounting nut, and is then tightened to secure it. Under the action of the second lifting platform, the fastening component separates from the steering gear assembly. The moving trolley moves to the bottom of the chassis, and under the action of the first lifting platform, the steering gear assembly and chassis are assembled. This device enables the installation, disassembly, and replacement of the steering gear assembly, offering good versatility and convenient transportation capabilities, saving labor and time costs. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the steering gear assembly in Embodiment 1 of the present invention;

[0032] Figure 2 This is a schematic diagram of the steering gear assembly disassembly and assembly device and the steering gear assembly in Embodiment 1 of the present invention;

[0033] Figure 3 This is a schematic diagram of the steering gear assembly disassembly and assembly device in Embodiment 1 of the present invention;

[0034] Figure 4 This is a front view of the steering gear assembly disassembly and assembly device in Embodiment 1 of the present invention;

[0035] Figure 5 This is a schematic diagram of the control component in Embodiment 1 of the present invention;

[0036] Figure 6 This is a flowchart illustrating the usage method of the steering gear assembly disassembly and assembly device in Embodiment 2 of the present invention.

[0037] In the picture:

[0038] 100. Steering gear assembly; 101. Mounting nut; 102. Bracket; 103. Steering control arm; 104. Steering tie rod; 105. Power steering gear;

[0039] 1. Mobile cart; 11. Frame; 12. Wheels;

[0040] 2. Fixed components; 21. First lifting platform; 22. Fixed frame; 221. Support plate; 222. Bracket;

[0041] 3. Second lifting platform;

[0042] 4. Slide rail;

[0043] 5. Fastening assembly; 51. Sliding seat; 52. Torque tightening toolbox; 53. Sleeve;

[0044] 6. Control components;

[0045] 7. Charging port;

[0046] 8. Handle. Detailed Implementation

[0047] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] In the description of this invention, 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, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0050] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein 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 with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0051] Example 1

[0052] like Figures 1 to 5As shown, this embodiment provides a steering gear assembly disassembly and assembly device, which includes a mobile trolley 1, two fixing components 2, a second lifting platform 3, a slide rail 4, and a fastening component 5. The two fixing components 2 are spaced apart. Each fixing component 2 includes a first lifting platform 21 and a fixing frame 22 disposed on the first lifting platform 21. The fixing frame 22 is used to fix the steering gear assembly 100. The first lifting platform 21 is disposed on the mobile trolley 1 and is used to drive the fixing frame 22 to rise and fall. The second lifting platform 3 is located between the two fixing components 2 and disposed on the mobile trolley 1. The slide rail 4 is mounted on the second lifting platform 3. The fastening component 5 is slidably disposed on the slide rail 4 and is used to fasten the mounting nut 101 of the steering gear assembly 100.

[0053] Both the first lifting platform 21 and the second lifting platform 3 are powered by motors and achieve lifting and lowering through a transmission mechanism. The lower end of the first lifting platform 21 is mounted on the end face of the moving trolley 1, and the fixed frame 22 is mounted on the upper end of the first lifting platform 21. Both ends of the steering gear assembly 100 are respectively fixedly mounted on the corresponding fixed frames 22. Under the driving action of the first lifting platform 21, the fixed frames 22 drive the steering gear assembly 100 to rise and fall vertically. The second lifting platform 3 is positioned between the two first lifting platforms 21 and is equipped with a slide rail 4 extending along the line connecting the two first lifting platforms 21. The fastening component 5 is an electric torque tightening wrench. The bottom of the fastening component 5 slides in conjunction with the slide rail 4 through a groove, aligning the centerline of the fastening component 5 with the mounting nut 101 of the steering gear assembly 100. Under the driving action of the second lifting platform 3, the fastening component 5 on the slide rail 4 rises and falls vertically, allowing the fastening component 5 to tighten and secure the mounting nut 101.

[0054] The working principle of the steering gear assembly disassembly and assembly device is as follows: First, the moving trolley 1 remains stationary, and the bracket 102 of the steering gear assembly 100 is installed on the fixed frame 22, secured with several bolts on both sides. The mounting nut 101, steering control arm 103, steering tie rod 104, and power steering gear 105 are then assembled onto the bracket 102. At this point, the mounting nut 101 is not tightened and the required torque is not reached. Next, the fastening assembly 5 slides relative to the slide rail 4, aligning its centerline with the centerline of the mounting nut 101 of the steering gear assembly 100. The second lifting platform 3 then raises the fastening assembly 5 vertically, bringing it into contact with and tightening the mounting nut 101 to achieve the required torque, until all mounting nuts 101 are tightened and secured. Finally, the second lifting platform 3 lowers the fastening assembly 5 vertically, disengaging it and completing the disassembly and assembly of the steering gear assembly 100. Finally, the trolley 1 is pushed to the position of the frame 11, aligning the holes of the bracket 102 with the holes of the frame 11. The two first lifting platforms 21 drive the steering gear assembly 100 on the fixed frame 22 to rise and fall, allowing the steering gear assembly 100 to be assembled with the frame 11, thus completing the assembly of the steering gear assembly 100. Similarly, the disassembly process is the reverse of the installation process, and the replacement process is the disassembly process plus the installation process. The specific operation methods and steps will not be repeated. This steering gear assembly disassembly and assembly device can realize the installation, disassembly, and replacement of the steering gear assembly 100. It has good versatility, is mobile and easy to transport, and saves labor and time costs.

[0055] Furthermore, referring to Figures 1-5 The fastening assembly 5 includes a sliding seat 51, a torque tightening toolbox 52, and a sleeve 53. The sliding seat 51 is slidably connected to the slide rail 4, the torque tightening toolbox 52 is disposed on the sliding seat 51, and the sleeve 53 is connected to the output end of the torque tightening toolbox 52, so that the sleeve 53 can tighten the mounting nut 101.

[0056] The torque tightening toolbox 52 is a pneumatic device connected to an external high-pressure air source. A sleeve 53 is mounted on the top of the toolbox, its size matching that of the mounting nut 101. The sleeve 53 can tighten the mounting nut 101 to achieve the required torque. A sliding seat 51 is mounted on the bottom of the toolbox 52, slidingly engaging with the slide rail 4. This aligns the centerline of the sleeve 53 with the centerline of the mounting nut 101 on the steering gear assembly 100. Driven by the second lifting platform 3, the sleeve 53 contacts the mounting nut 101. Pressing the start button activates the torque tightening toolbox 52, driving the sleeve 53 to tighten the mounting nut 101 to achieve the required torque.

[0057] Furthermore, referring to Figures 1-5The steering gear assembly disassembly and assembly device also includes a control component 6, which includes a controller and a control circuit board electrically connected to the controller. The controller is installed on the mobile trolley 1, and the control circuit board is used to control the opening or closing of the first lifting platform 21 and the second lifting platform 3.

[0058] The controller panel features an up button, a down button, and a three-in-one button for pause, stop, and double-click toggle. The up and down buttons control the raising and lowering of the first lifting platform 21 and the second lifting platform 3. The three-in-one button controls the pause, stop, and toggle of the raising and lowering of the first lifting platform 21 and the second lifting platform 3. Pressing the up or down button sends a high-level signal to the control circuit board, enabling the control circuit board to raise or lower the first lifting platform 21. Pressing the pause button sends a low-level signal to the control circuit board, enabling the control circuit board to stop the raising and lowering of the first lifting platform 21. Double-clicking the toggle button sends a high-level signal to the control circuit board, enabling the control circuit board to switch the function of controlling the raising and lowering of the first lifting platform 21 to controlling the raising and lowering of the second lifting platform 3.

[0059] Furthermore, referring to Figures 1-5 The mounting bracket 22 includes a support plate 221 and a bracket 222. The bracket 222 is fixedly installed on the first lifting platform 21, and the support plate 221 is disposed on the bracket 222 and used to fix the steering gear assembly 100. The bracket 222 is fixedly installed on the end face of the first lifting platform 21 by several bolts, and the support plate 221 is fixedly installed on the top surface of the bracket 222. The support plate 221 has an L-shaped structure, that is, the vertical surface of the support plate 221 is installed on the bracket 222, and the flat surface of the support plate 221 is used to fix the steering gear assembly 100.

[0060] Furthermore, referring to Figures 1-5 The steering gear assembly disassembly and assembly device also includes a connector. The mounting bracket 22 has mounting holes, and the connector passes through the mounting holes and is fixedly connected to the steering gear assembly 100. The connector is a bolt. The flat surface of the support plate 221 has mounting holes. The bracket 102 of the steering gear assembly 100 is fixedly installed in the mounting holes of the support plate 221 through the connector. The mounting nut 101, steering control arm 103, steering tie rod 104, and power steering gear 105 are assembled onto the bracket 102.

[0061] Furthermore, referring to Figures 1-5The steering gear assembly disassembly and assembly device also includes a battery assembly, which comprises a battery and a charging interface 7. The battery is located inside the mobile trolley 1 and supplies power to the first lifting platform 21 and the second lifting platform 3. The charging interface 7 is integrated with the battery and is located on the outer shell of the mobile trolley 1. The charging interface 7 is used to connect to mains power. The battery is a lithium battery. The mobile trolley 1 has a receiving cavity in which the battery is located. A 220V charging location is set up outdoors, and the 220V mains power is connected to the charging interface 7 to charge the battery. When charging is complete, the mains power connection is automatically disconnected. The mobile trolley 1 has a portable charging battery, eliminating the need for a power cord and providing mobile and convenient transportation capabilities.

[0062] Furthermore, referring to Figures 1-5 The mobile trolley 1 includes a frame 11 and multiple wheels 12, which are rotatably mounted on the bottom of the frame 11. There are four wheels 12: two at the front of the frame 11 are directional wheels, and two at the rear are omnidirectional wheels. The steering gear assembly disassembly and assembly device also includes a handle 8, which is mounted on the frame 11. By pushing the handle 8, the operator can move the mobile trolley 1 to a designated position or under the frame 11, driven by the multiple wheels 12. This allows for convenient movement and saves time and effort.

[0063] Example 2

[0064] like Figure 6 As shown, this embodiment provides a method for using a steering gear assembly disassembly and assembly device. The method of using the steering gear assembly disassembly and assembly device includes:

[0065] S100: Securely mount the steering gear assembly 100 onto the mounting bracket 22.

[0066] S100 specifically includes:

[0067] The mobile trolley 1 is fixed to the ground, and the bracket 102 of the steering gear assembly 100 is fixedly installed on the fixed frame 22 via connectors. A first lifting platform 21 is positioned on the mobile trolley 1, and the fixed frame 22 is positioned on the first lifting platform 21. The first lifting platform 21 drives the fixed frame 22 to rise and fall, and the fixed frame 22 is used to fix the steering gear assembly 100. The mobile trolley 1 remains stationary, and the bracket 102 of the steering gear assembly 100 is installed on the fixed frame 22, secured with several bolts on both sides. The steering control arm 103, steering tie rod 104, power steering gear 105, and mounting nut 101 of the steering gear assembly 100 are assembled onto the bracket 102. At this point, the mounting nut 101 is not tightened and the required torque is not reached.

[0068] S200: The fastening component 5 can slide on the slide rail 4 to align the fastening component 5 with the mounting nut 101.

[0069] The second lifting platform 3 is located between the two fixed components 2 and is disposed on the moving trolley 1. The slide rail 4 is installed on the second lifting platform 3, and the fastening component 5 is slidably disposed on the slide rail 4. The fastening component 5 is used to fasten the mounting nut 101 of the steering gear assembly 100. The fastening component 5 slides relative to the slide rail 4 so that the center line of the fastening component 5 is aligned with the center line of the mounting nut 101 of the steering gear assembly 100.

[0070] S300: The fastening component 5 can contact the mounting nut 101 under the action of the second lifting platform 3, and the fastening component 5 tightens and fixes the mounting nut 101.

[0071] The second lifting platform 3 drives the fastening assembly 5 to rise vertically, so that the fastening assembly 5 contacts the mounting nut 101 and tightens it to achieve the required torque, until all the mounting nuts 101 are tightened and fixed.

[0072] S400: Under the action of the second lifting platform 3, the fastening assembly 5 is separated from the steering gear assembly 100.

[0073] The second lifting platform 3 drives the fastening assembly 5 to descend vertically, causing the fastening assembly 5 to disengage and completing the sub-assembly of the steering gear assembly 100.

[0074] S500: The trolley 1 moves to the bottom of the frame 11, and under the action of the first lifting platform 21, the steering gear assembly 100 and the frame 11 are assembled together.

[0075] Push the trolley 1 to the position of the frame 11 so that the hole of the bracket 102 is aligned with the hole of the frame 11. The two first lifting platforms 21 drive the steering gear assembly 100 on the fixed frame 22 to rise and fall, so that the steering gear assembly 100 is assembled with the frame 11, and finally the assembly of the steering gear assembly 100 is completed.

[0076] The method of using the steering gear assembly disassembly and assembly device provided in this embodiment involves fixing the steering gear assembly 100 onto the fixing frame 22 using the device. The fastening component 5 can slide on the slide rail 4, aligning the fastening component 5 with the mounting nut 101. Under the action of the second lifting platform 3, the fastening component 5 contacts the mounting nut 101, and the fastening component 5 tightens to secure the mounting nut 101. Under the action of the second lifting platform 3, the fastening component 5 separates from the steering gear assembly 100. The moving trolley 1 moves to the bottom of the frame 11, and under the action of the first lifting platform 21, the steering gear assembly 100 and the frame 11 are assembled. This method enables the installation, disassembly, and replacement of the steering gear assembly 100, offering good versatility and convenient transportation capabilities, saving labor and time costs.

[0077] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A steering gear assembly disassembly and assembly device, characterized in that, include: Mobile cart (1); Two fixed components (2) are arranged at intervals. Each fixed component (2) includes a first lifting platform (21) and a fixed frame (22) disposed on the first lifting platform (21). The fixed frame (22) is used to fix the steering gear assembly (100). The first lifting platform (21) is disposed on the mobile trolley (1), and the first lifting platform (21) is used to drive the fixed frame (22) to rise and fall. The second lifting platform (3) is located between the two fixed components (2) and is disposed on the mobile trolley (1); Slide rail (4), the slide rail (4) is installed on the second lifting platform (3); Fastening assembly (5) is slidably disposed on the slide rail (4) and is used to fasten the mounting nut (101) of the steering gear assembly (100).

2. The steering gear assembly disassembly and assembly device according to claim 1, characterized in that, The fastening assembly (5) includes a sliding seat (51), a torque tightening toolbox (52), and a sleeve (53). The sliding seat (51) is slidably connected to the slide rail (4). The torque tightening toolbox (52) is disposed on the sliding seat (51). The sleeve (53) is connected to the output end of the torque tightening toolbox (52), so that the sleeve (53) can tighten the mounting nut (101).

3. The steering gear assembly disassembly and assembly device according to claim 1, characterized in that, The steering gear assembly disassembly and assembly device also includes a control component (6), which includes a controller and a control circuit board electrically connected to the controller. The controller is installed on the mobile trolley (1), and the control circuit board is used to control the opening or closing of the first lifting platform (21) and the second lifting platform (3).

4. The steering gear assembly disassembly and assembly device according to claim 1, characterized in that, The fixed frame (22) includes a tray (221) and a bracket (222). The bracket (222) is fixedly installed on the first lifting platform (21). The tray (221) is disposed on the bracket (222) and used to fix the steering gear assembly (100).

5. The steering gear assembly disassembly and assembly device according to claim 1, characterized in that, The steering gear assembly disassembly and assembly device also includes a connector. The mounting bracket (22) has a mounting hole, and the connector passes through the mounting hole and is fixedly connected to the steering gear assembly (100).

6. The steering gear assembly disassembly and assembly device according to claim 1, characterized in that, The steering gear assembly disassembly and assembly device also includes a battery assembly, which includes a battery and a charging interface (7). The battery is located inside the mobile trolley (1) and is used to supply power to the first lifting platform (21) and the second lifting platform (3). The charging interface (7) is integrated with the battery and is located on the outer shell of the mobile trolley (1). The charging interface (7) is used to connect to the mains power.

7. The steering gear assembly disassembly and assembly device according to claim 1, characterized in that, The mobile trolley (1) includes a frame (11) and multiple wheels (12), with the multiple wheels (12) rotatably disposed at the bottom of the frame (11).

8. The steering gear assembly disassembly and assembly device according to claim 7, characterized in that, The steering gear assembly disassembly device also includes a handle (8), which is mounted on the vehicle frame (11).

9. The method of using the steering gear assembly disassembly and assembly device, characterized in that, By implementing the steering gear assembly disassembly and assembly device as described in claims 1-8, the method of using the steering gear assembly disassembly and assembly device includes: S100: The steering gear assembly (100) is fixedly installed on the mounting bracket (22); S200: The fastening assembly (5) is slidable on the slide rail (4) so ​​that the fastening assembly (5) is aligned with the mounting nut (101). S300: The fastening component (5) can contact the mounting nut (101) under the action of the second lifting platform (3), and the fastening component (5) screws and fixes the mounting nut (101). S400: Under the action of the second lifting platform (3), the fastening assembly (5) is separated from the steering gear assembly (100); S500: The mobile trolley (1) moves to the bottom of the frame (11) and, under the action of the first lifting platform (21), assembles the steering gear assembly (100) and the frame (11).

10. The method of using the steering gear assembly disassembly and assembly device according to claim 9, characterized in that, The steering gear assembly disassembly and assembly device also includes a connector. The fixing bracket (22) has a mounting hole, and the connector passes through the mounting hole and is fixedly connected to the steering gear assembly (100). The method of using the steering gear assembly disassembly and assembly device, S100, specifically includes: S101: The mobile trolley (1) is fixed to the ground, and the bracket (102) of the steering gear assembly (100) is fixedly installed on the fixed frame (22) through the connector. S102: Assemble the steering control arm, steering tie rod, power steering gear and mounting nut (101) of the steering gear assembly (100) onto the bracket (102).

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