A steering system static torque destruction test bench

Abstract

The utility model relates to a kind of steering system static torsion destruction test bench, including workbench, workbench top is provided with bottom plate, mobile plate is set on bottom plate, rotating disc is set on mobile plate, rotating disc top is equipped with adjusting assembly, adjusting assembly left side is equipped with first clamp, right side is equipped with moving assembly, moving assembly right side is equipped with second clamp, when testing, bottom plate two ends are respectively installed torque testing device and fixing device, when testing upper steering system, by first clamp clamping and adjusting mobile plate and the position of fixing device, make upper steering system two ends corresponding connection after testing;When testing lower steering system, rotating disc is rotated 90 degrees, second clamp height is adjusted by moving assembly, and mobile plate is moved to appropriate position, so that the end of lower steering system is connected torque testing device, and testing can be carried out, the test bench does not need to replace test platform, and the static torsion destruction strength test of upper and lower steering system can be realized on the same workbench surface.

Description

Technical Field

[0001] This utility model relates to the field of automotive steering performance testing technology, and in particular to a static torsional failure test bench for steering systems. Background Technology

[0002] In the research and development and mass production testing of automotive steering systems, the steering system, as a core chassis component that ensures driving safety and handling stability, directly determines the driving experience and safety boundaries of the vehicle. Automotive steering systems are generally divided into upper steering systems (including core components such as steering wheel, steering column, and universal joint, which are responsible for transmitting steering commands and providing torque feedback) and lower steering systems (including actuators such as steering gear, steering tie rod, and ball joint, which are responsible for converting mechanical / electronic commands into wheel steering actions). The accurate control of steering is achieved through the coordinated work of the two systems.

[0003] Currently, the testing of upper and lower steering systems generally requires two separate testing platforms. For the upper steering system testing platform, a special adapter fixture needs to be installed according to its structural characteristics. The operator then fixes the assembled upper steering system, including the steering wheel and steering column, onto the fixture, adjusts the platform's fixing device and the position of the torque testing components to ensure that both ends of the upper steering system are connected to the torque input end and the fixed end, respectively. The equipment is then started to perform a static torsional failure strength test, recording key data such as torque transmission efficiency and ultimate failure torque. When testing the lower steering system, the test piece needs to be transferred to a dedicated testing platform, and then the same static torsional test procedure is initiated to obtain test parameters such as torsional strength and deformation.

[0004] The aforementioned existing technical solutions have the following drawbacks: most test benches can only test one of the upper or lower steering systems. When it is necessary to test the two steering systems separately, different test platforms need to be used. Utility Model Content

[0005] The purpose of this invention is to provide a static torsional failure test bench for steering systems to solve the problems existing in the prior art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A static torsional failure test bench for a steering system includes a workbench. A base plate is provided on the top of the workbench along its length. A movable plate is slidably mounted on the base plate. A turntable is rotatably mounted on the top of the movable plate. An adjustment assembly is provided on the top of the turntable. A first clamp is provided on the left side of the adjustment assembly, a movable assembly is provided on the right side of the adjustment assembly, and a second clamp is provided on the right side of the movable assembly. The adjustment assembly is used to adjust the height of the first clamp and the movable assembly, and the movable assembly is used to adjust the height of the second clamp. The first clamp is used to clamp the upper steering system of a vehicle, and the second clamp is used to clamp the lower steering system of the vehicle.

[0007] By adopting the above technical solution, a torque testing device is installed at one end of the base plate, and a fixing device is installed at the other end. When it is necessary to test the performance of the upper steering system, the upper steering system is clamped by the first clamp, and then the position of the moving plate and the fixing device on the base plate is adjusted according to the length of the upper steering system, so that both ends of the upper steering system are connected to the torque testing device and the fixing device respectively, and the torque of the upper steering system is tested. When it is necessary to test the performance of the lower steering system, the lower steering system is clamped by the second clamp, and then the turntable is rotated 90 degrees. According to the height of the lower steering system, the height of the second clamp is adjusted again by the moving component, and then the moving plate is moved to a suitable position at the distance from the torque testing device according to the length of the lower steering system. Then, one end of the lower steering system is connected to the torque testing device. Thus, the static torsional failure strength test of the upper and lower steering systems of an automobile can be carried out on the same worktable without changing the test platform.

[0008] In a further embodiment, the adjustment assembly includes a fixed frame, a slider, a first screw, and a first handle. The left and right perimeters of the fixed frame are provided with integrally formed concentric baffles. The slider is slidably installed inside the fixed frame, and the vertical surfaces of the slider are all in contact with the inner wall of the fixed frame. The first screw is rotatably installed inside the fixed frame in a vertical direction. The top end of the first screw is provided with an extension end, which passes through and extends to the top of the fixed frame. The first handle is fixedly installed on the top of the extension end, and the first clamp is fixedly installed on the left side of the slider.

[0009] By adopting the above technical solution, rotating the first handle can drive the screw to rotate, thereby causing the slider to slide smoothly in the vertical direction within the fixed frame. The slider's vertical surface is in close contact with the inner wall of the fixed frame, which can effectively avoid the problem of deviation during the lifting process. This allows it to adapt to the installation and clamping requirements of different specifications of up and down steering systems, ensuring that the axis of the steering system after clamping is consistent with the axis of rotation of the turntable, thereby ensuring the stability of torque transmission and the accuracy of testing.

[0010] In a further embodiment, the moving component includes a first lifting plate and two lifting components. The first lifting plate is fixedly installed on the right side of the slider. The two lifting components are symmetrically arranged at the front and rear ends of the first lifting plate. Each lifting component includes a first support plate, a second support plate, a drive motor, a third gear, a connecting plate, and an arc-shaped plate. The first and second support plates are fixedly installed on one side of the first lifting plate. The first support plate is spaced apart from the top of the second support plate. A common connecting plate connects the first and second support plates, and the connecting plate faces away from the first lifting plate. An arc-shaped notch is provided on one side, and the bow-shaped plate is movably installed in the arc-shaped notch. The outer arc of the bow-shaped plate is consistent with the inner arc of the arc-shaped notch. A first rack is provided at the outer ends of the two bow-shaped plates that are opposite to each other. A third gear is provided at the outer top of the first rack. A third round rod is sleeved on the third gear. The drive motor is located on the opposite side of the two bow-shaped plates. The drive motor is fixedly installed on the right side of the first lifting plate. One end of the third round rod is drivenly connected to the output shaft of the drive motor. The other end of the third round rod is rotatably connected to the connecting plate. The third gear meshes with the first rack.

[0011] By adopting the above technical solution, when the first screw rotates, it drives the slider to move up and down, thereby causing the first lifting plates and the first clamp on both sides of the slider to move up and down synchronously. Considering that there may be a height difference between the upper steering system and the lower steering system during the test, in order to adapt to the test requirements of different heights and improve the convenience of test operation, the second clamp can be adjusted in height. Specifically, after the drive motor of the second clamp starts, it drives the third round rod and the third gear to rotate. By using the meshing transmission between the third gear and the first rack, the bow-shaped plate can be driven to move along the inner wall of the arc-shaped notch on the connecting plate, thereby adjusting the height of the second clamp. The two lifting components are symmetrically linked, which can ensure that the second clamp always remains horizontal, thereby realizing the adaptation and clamping of the lower steering system.

[0012] In a further embodiment, a locking module is provided at the top of the movable plate. The locking module includes a clamping block, a second screw, and a second handle. The top of the movable plate is provided with a downward-facing dovetail groove. The clamping block is slidably installed in the dovetail groove. An ear plate is fixedly installed at the top of the dovetail groove. The ear plate is provided with a threaded hole. The threaded hole is fitted with a second screw. The rear end of the second screw is rotatably connected to the clamping block. The front end of the second screw is fixedly installed with a second handle. The front end of the clamping block is in contact with the turntable.

[0013] By adopting the above technical solution, when the turntable drives the top component to rotate to the preset test angle, rotating the second handle can push the clamping block to slide backward along the dovetail groove until the clamping block and the turntable are tightly fitted. The friction between the clamping block and the turntable is used to lock and fix the turntable, thus preventing the turntable from rotating unexpectedly during the test.

[0014] In a further embodiment, a second rack is provided at the front end of the base plate, and a first mounting groove and a second mounting groove are provided at the front and rear ends of the movable plate, respectively. A first gear is rotatably installed in the first mounting groove, and the first gear and the second rack mesh. A pulley is rotatably installed in the second mounting groove. A locking device is provided on one side of the movable plate, and the locking device is used to lock the movable plate on the base plate.

[0015] By adopting the above technical solution, the moving plate is driven by the meshing of the first gear and the second rack of the base plate, and the moving plate slides as a whole in conjunction with the pulley in the second mounting groove. This allows the position of the moving plate on the base plate to be adjusted according to the actual length of the upper and lower steering systems, so that the torque testing device and the fixing device can be connected to both ends of the upper steering system respectively, and the torque testing device can be connected to one end of the lower steering system. After the moving plate slides into place, the moving plate is locked by the locking device to prevent the moving plate from shifting due to torque during the test.

[0016] In a further embodiment, the locking device includes a housing, a first bevel gear, a second bevel gear, a second gear, and a handle. The housing has a structure with a completely open top and bottom. A partition is provided inside the housing to divide the housing into a front chamber and a rear chamber. The first bevel gear is rotatably mounted on the left end of the front chamber, with the axis of the first bevel gear pointing vertically. The second bevel gear is rotatably mounted on the right end of the front chamber, with the axis of the second bevel gear pointing forward and backward. The first bevel gear and the second bevel gear mesh. The second bevel gear is fitted with a second round rod. The partition is provided with a clearance hole for the second round rod to pass through. The second round rod extends into the rear chamber through the clearance hole. The second gear is fitted on the rear end of the round rod and meshes with a rack. The first bevel gear is fitted with the first round rod. The handle is fixedly mounted on the top end of the first round rod.

[0017] By adopting the above technical solution, rotating the handle drives the first round rod and the first bevel gear to rotate. The meshing transmission of the first bevel gear and the second bevel gear drives the second round rod and the second gear to rotate, so that the second gear meshes tightly with the second rack of the base plate, thereby firmly locking the moving plate in the preset position of the base plate. This can effectively resist the large torque impact force generated during the test and prevent the moving plate from loosening.

[0018] In a further embodiment, the first clamp includes a second lifting plate and a horizontal plate, the horizontal plate being fixedly installed at the bottom of the second lifting plate, the second lifting plate being fixedly connected to the slider, and the horizontal plate being provided with a plurality of through holes extending vertically.

[0019] By adopting the above technical solution, the end of the vehicle's upper steering system can be firmly attached to the horizontal plate through multiple through holes and bolts. The second moving plate is fixedly connected to the slider to ensure that the upper steering system rises and falls synchronously with the adjustment component.

[0020] In a further embodiment, the second clamp is a rectangular plate, which is fixedly installed inside two bow-shaped plates, and the right end of the rectangular plate is provided with multiple internal threaded holes.

[0021] By adopting the above technical solution, the rectangular plate uses multiple internal threaded holes on the right end to fit bolts, thereby adapting to the mounting hole positions of the lower steering system and firmly fixing the lower steering system to the right side of the rectangular plate.

[0022] In summary, this utility model has the following beneficial effects: 1. By installing a torque testing device at one end of a base plate and a fixing device at the other end, when testing the performance of the upper steering system, the upper steering system is clamped by a first clamp. The position of the moving plate and the fixing device on the base plate is adjusted according to the length of the upper steering system, so that both ends of the upper steering system are connected to the torque testing device and the fixing device respectively, and the torque of the upper steering system is then tested. When testing the performance of the lower steering system, the lower steering system is clamped by a second clamp. The turntable is then rotated 90 degrees. The height of the second clamp is adjusted a second time according to the height of the lower steering system using a moving component. The moving plate is then moved to a suitable position relative to the torque testing device according to the length of the lower steering system. Finally, one end of the lower steering system is connected to the torque testing device. This method allows for static torsional strength testing of both the upper and lower steering systems of an automobile on the same worktable without changing the testing platform. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram illustrating the lifting assembly of this utility model.

[0024] In the diagram, 1. Workbench; 2. Base plate; 3. Moving plate; 4. Turntable; 5. Adjustment assembly; 51. Fixed frame; 52. First handle; 53. Screw; 6. First clamp; 7. Moving assembly; 71. First lifting plate; 72. Lifting assembly; 721. First support plate; 722. Second support plate; 723. Drive motor; 724. Third gear; 725. Connecting plate; 726. Bow-shaped plate; 8. Second clamp; 9. Locking module; 10. Second rack; 11. Fixing device. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0027] Example 1: like Figures 1-2 As shown, a static torsional failure test bench for a steering system includes a workbench 1, with a base plate 2 arranged on the top of the workbench 1 along its length. The bench is characterized by: a movable plate 3 slidably mounted on the base plate 2; a turntable 4 rotatably mounted on the top of the movable plate 3; an adjustment assembly 5 on the top of the turntable 4; a first clamp 6 on the left side of the adjustment assembly 5; a movable assembly 7 on the right side of the adjustment assembly 5; and a second clamp 8 on the right side of the movable assembly 7. The adjustment assembly 5 is used to adjust the height of the first clamp 6 and the movable assembly 7, and the movable assembly 7 is used to adjust the height of the second clamp 8. The first clamp 6 is used to clamp the upper steering system of the vehicle, and the second clamp 8 is used to clamp the lower steering system of the vehicle. The adjustment component 5 includes a fixed frame 51, a first screw 53, and a first handle 52. The left and right sides of the fixed frame 51 are provided with integrally formed concentric baffles. A slider is slidably installed inside the fixed frame 51. The vertical surfaces of the slider are all in contact with the inner wall of the fixed frame 51. The first screw 53 is rotatably installed inside the fixed frame 51 in the vertical direction. The top end of the first screw 53 is provided with an extension end. The extension end passes through and extends to the top of the fixed frame 51. The first handle 52 is fixedly installed on the top of the extension end. The first clamp 6 is fixedly installed on the left side of the slider. The moving component 7 includes a first lifting plate 71 and two lifting components 72. The first lifting plate 71 is fixedly installed on the right side of the slider. The two lifting components 72 are symmetrically arranged at the front and rear ends of the first lifting plate 71. Each lifting component 72 includes a first support plate 721, a second support plate 722, a drive motor 723, a third gear 724, a connecting plate 725, and an arc-shaped plate 726. The first support plate 721 and the second support plate 722 are fixedly arranged on one side of the first lifting plate 71. The first support plate 721 is spaced apart on the top of the second support plate 722. The first support plate 721 and the second support plate 722 are connected by the same connecting plate 725. An arc-shaped notch is provided on one side away from the first lifting plate 71. An arc-shaped plate 726 is movably installed in the arc-shaped notch. The outer arc of the arc-shaped plate 726 is consistent with the inner arc of the arc-shaped notch. A first rack is provided at the opposite ends of the outer sides of the two arc-shaped plates 726. A third gear 724 is located at the top of the outer side of the first rack. A third round rod is sleeved on the third gear 724. A drive motor 723 is located on the opposite side of the two arc-shaped plates 726. The drive motor 723 is fixedly installed on the right side of the first lifting plate 71. The output shaft of the drive motor 723 is connected to one end of the third round rod. The other end of the third round rod is rotatably connected to the connecting plate 725. The third gear 724 meshes with the first rack. The top of the movable plate 3 is provided with a locking module 9, which includes a clamping block, a second screw and a second handle. The top of the movable plate 3 is provided with a downward dovetail groove, in which the clamping block is slidably installed. The top of the dovetail groove is fixedly installed with an ear plate, which is provided with a threaded hole. The threaded hole is fitted with a second screw. The rear end of the second screw is rotatably connected to the clamping block. The front end of the second screw is fixedly installed with a second handle. The front end of the clamping block is in contact with the turntable 4. The front end of the base plate 2 is provided with a second rack 10, and the front and rear ends of the movable plate 3 are respectively provided with a first mounting groove and a second mounting groove. A first gear is rotatably installed in the first mounting groove, and the first gear and the second rack 10 mesh. A pulley is rotatably installed in the second mounting groove. A locking device 11 is provided on one side of the movable plate 3. The locking device 11 is used to lock the movable plate 3 on the base plate 2. The locking device 11 includes a housing, a first bevel gear, a second bevel gear, a second gear, and a handle. The housing has a structure with a completely open top and bottom. The housing is equipped with a partition to divide the housing into a front chamber and a rear chamber. The first bevel gear is rotatably mounted on the left end of the front chamber, and the axis of the first bevel gear is in the up-down direction. The second bevel gear is rotatably mounted on the right end of the front chamber, and the axis of the second bevel gear is in the front-back direction. The first bevel gear and the second bevel gear mesh. The second bevel gear is fitted with a second round rod. The partition is provided with a clearance hole for the second round rod to pass through. The second round rod extends into the rear chamber through the clearance hole. The second gear is fitted on the rear end of the round rod and meshes with a rack. The first bevel gear is fitted with the first round rod. The handle is fixedly mounted on the top end of the first round rod. The first clamp 6 includes a second lifting plate and a horizontal plate. The horizontal plate is fixedly installed at the bottom of the second lifting plate. The second lifting plate and the slider are fixedly connected. The horizontal plate is provided with multiple through holes running vertically through the top and bottom. The second clamp 8 is a rectangular plate. The rectangular plate is fixedly installed inside two bow-shaped plates 726. The right end of the rectangular plate is provided with multiple internal threaded holes.

[0028] Specific implementation process: When the static torsion failure test bench for the steering system is in operation, the device is first adjusted according to the test object. If the upper steering system is tested first, the horizontal plate of the first fixture is used to fix one end of the upper steering system with bolts through the through holes. The second handle is rotated to make the clamping block fit against the turntable and lock the turntable. The positions of the moving plate and the fixing device are adjusted so that both ends of the upper steering system are connected to the torque testing device and the fixing device respectively, thereby performing torque testing. Then the lower steering system is tested. The locking device is released from the turntable, and then the turntable is rotated 90 degrees. The turntable is then locked again by the locking device. Finally, the locking device is released from the moving plate. The movable plate is then moved to a suitable position on the base plate, allowing one end of the lower steering system to connect to the torque testing device. It is then locked in place using a locking device. If there is a difference in height between the lower and upper steering systems, the height of the second clamp is adjusted according to the height of the lower steering system. The drive motor is then started, causing the third round rod and third gear to rotate. Through engagement with the first rack, the bow-shaped plate moves within the arc-shaped notch of the connecting plate, allowing for a secondary height adjustment of the second clamp to ensure it is compatible with the lower steering system. During testing, the torque testing device applies torque to simulate actual stress conditions, performing a static torsional failure test on the steering system.

[0029] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0030] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A static torsion destruction test bench for a steering system, comprising a workbench (1), a bottom plate (2) is arranged on the top of the workbench (1) along the length direction, characterized in that: A movable plate (3) is slidably mounted on the base plate (2). A turntable (4) is rotatably mounted on the top of the movable plate (3). An adjustment component (5) is provided on the top of the turntable (4). A first clamp (6) is provided on the left side of the adjustment component (5). A movable component (7) is provided on the right side of the adjustment component (5). A second clamp (8) is provided on the right side of the movable component (7). The adjustment component (5) is used to adjust the height of the first clamp (6) and the movable component (7). The movable component (7) is used to adjust the height of the second clamp (8). The first clamp (6) is used to clamp the upper steering system of the car. The second clamp (8) is used to clamp the lower steering system of the car.

2. The static torsion destruction test bench of a steering system according to claim 1, characterized in that: The adjustment component (5) includes a fixed frame (51), a first screw (53) and a first handle (52). The left and right sides of the fixed frame (51) are provided with integrally formed concentric baffles. A slider is slidably installed inside the fixed frame (51). The vertical surfaces of the slider are all in contact with the inner wall of the fixed frame (51). The first screw (53) is rotatably installed inside the fixed frame (51) in the vertical direction. The top end of the first screw (53) is provided with an extension end. The extension end passes through and extends to the top of the fixed frame (51). The first handle (52) is fixedly installed on the top of the extension end. The first clamp (6) is fixedly installed on the left side of the slider.

3. The static torsion destruction test bench of a steering system according to claim 2, characterized in that: The moving component (7) includes a first lifting plate (71) and two lifting components (72). The first lifting plate (71) is fixedly installed on the right side of the slider. The two lifting components (72) are symmetrically arranged at the front and rear ends of the first lifting plate (71). Each lifting component (72) includes a first support plate (721), a second support plate (722), a drive motor (723), a third gear (724), a connecting plate (725), and an arc-shaped plate (726). The first support plate (721) and the second support plate (722) are fixedly arranged on one side of the first lifting plate (71). The first support plate (721) is spaced apart on the top of the second support plate (722). The first support plate (721) and the second support plate (722) are connected by the same connecting plate (725). The connecting plate (725) faces away from the first support plate (721). An arc-shaped notch is provided on one side of the first lifting plate (71). The bow-shaped plate (726) is movably installed in the arc-shaped notch. The outer arc of the bow-shaped plate (726) is consistent with the inner arc of the arc-shaped notch. A first rack is provided at the opposite ends of the outer sides of the two bow-shaped plates (726). The third gear (724) is located at the top of the outer side of the first rack. The third gear (724) is fitted with a third round rod. The drive motor (723) is located on the opposite side of the two bow-shaped plates (726). The drive motor (723) is fixedly installed on the right side of the first lifting plate (71). The output shaft of the drive motor (723) is connected to one end of the third round rod. The other end of the third round rod is rotatably connected to the connecting plate (725). The third gear (724) meshes with the first rack.

4. The static torsion destruction test bench of a steering system according to claim 1, characterized in that: The top of the movable plate (3) is provided with a locking module (9), which includes a clamping block, a second screw and a second handle. The top of the movable plate (3) is provided with a downward dovetail groove, in which the clamping block is slidably installed. The top of the dovetail groove is fixedly installed with an ear plate, which is provided with a threaded hole. The threaded hole is fitted with a second screw, the rear end of the second screw is rotatably connected to the clamping block, and the front end of the second screw is fixedly installed with a second handle. The front end of the clamping block is in contact with the turntable (4).

5. The static torsion destruction test bench of a steering system according to claim 1, characterized in that: The front end of the base plate (2) is provided with a second rack (10), and the front and rear ends of the movable plate (3) are respectively provided with a first mounting groove and a second mounting groove. A first gear is rotatably installed in the first mounting groove, and the first gear and the second rack (10) mesh. A pulley is rotatably installed in the second mounting groove. A locking device (11) is provided on one side of the movable plate (3), and the locking device (11) is used to lock the movable plate (3) on the base plate (2).

6. The static torsion destruction test bench for a steering system according to claim 5, characterized in that: The locking device (11) includes a housing, a first bevel gear, a second bevel gear, a second gear, and a handle. The housing has a structure with its top and bottom ends completely open. A partition is provided inside the housing to divide the housing into a front chamber and a rear chamber. The first bevel gear is rotatably mounted on the left end of the front chamber, and the axis of the first bevel gear is in the up-down direction. The second bevel gear is rotatably mounted on the right end of the front chamber, and the axis of the second bevel gear is in the front-back direction. The first bevel gear and the second bevel gear mesh. The second bevel gear is fitted with a second round rod. The partition is provided with a clearance hole for the second round rod to pass through. The second round rod extends into the rear chamber through the clearance hole. The second gear is fitted on the rear end of the round rod. The second gear meshes with a rack. The first bevel gear is fitted with the first round rod. The handle is fixedly mounted on the top end of the first round rod.

7. The static torsion destruction test bench of a steering system according to claim 2, characterized in that: The first clamp (6) includes a second lifting plate and a horizontal plate. The horizontal plate is fixedly installed at the bottom of the second lifting plate. The second lifting plate and the slider are fixedly connected. The horizontal plate is provided with multiple through holes running vertically through the top and bottom.

8. The static torsional failure test bench for a steering system according to claim 3, characterized in that: The second clamp (8) is a rectangular plate, which is fixedly installed inside two bow-shaped plates (726). The right end of the rectangular plate is provided with multiple internal threaded holes.

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