Method and device for testing durability of steering column shield of carrier
By determining multiple limit positions on the vehicle steering column and performing cycle tests, measuring the change value of the fitting gap and the fastener tightening degree, the problem of inaccurate durability testing of steering column shields in the prior art is solved, and the problem of inaccurate testing of steering column shields is realized. More accurate durability assessment.
Patent Information
- Application Number
- CN202410438022.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-02-07
AI Technical Summary
In the prior art, the durability testing method of the vehicle steering column shield is not accurate enough to effectively evaluate the performance of the shield in actual use.
Evaluate the steering column shield by determining multiple limit positions of the steering column and controlling the steering column to cycle through these positions multiple times, measuring the value of the fitting gap change between two adjacent sub-guards and the degree of fastener tightening of the fastener. Durability.
This method can more accurately evaluate the durability of the steering column shield, simulating the working conditions that drive the shield movement when the driver adjusts the steering column, thereby improving the accuracy and reliability of the test.
Smart Images
Figure CN119394661A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of vehicle technology, and in particular to a durability testing method and device for a steering column shield of a vehicle. Background Art
[0002] The steering column guard of a vehicle is a cover installed on the part of the steering column inside the vehicle. After long-term use, the steering column guard may have durability problems, so the durability of the steering column guard needs to be tested.
[0003] When the vehicle is a car, domestic OEMs currently mostly test the durability of the steering column guard by subjecting the steering column guard to hydraulic vibration along with the entire vehicle. However, the durability data of the steering column guard obtained by this test method is not accurate enough. Summary of the invention
[0004] To at least partially solve the above-mentioned problems, according to one aspect of the present application, an embodiment of the present application provides a method for testing the durability of a steering column shield of a vehicle, wherein the steering column shield is disposed at a portion of the steering column located inside the vehicle, and the steering column shield is formed by a plurality of sub-shields circumferentially arranged around the steering column, and the method comprises: determining a plurality of extreme positions when the steering column is adjusted; controlling the steering column to cycle through the plurality of extreme positions for multiple times; obtaining a change value of a fitting clearance between two adjacent sub-shields after the steering column has cycled through the plurality of extreme positions for multiple times; and determining the durability of the steering column shield based at least on the change value of the fitting clearance.
[0005] In some embodiments, at least one sub-shield is fixedly connected to the steering column by fasteners to achieve fixation of the steering column shield to the steering column. The method also includes: obtaining the tightness of the fasteners after the steering column has cycled through multiple extreme positions for multiple times; and determining the durability of the steering column shield based on the change value of the fitting clearance and the tightness of the fasteners.
[0006] In some embodiments, the fastener is a screw, and the tightness of the fastener is the ratio of the residual torque of the screw to the tightening torque of the screw; the residual torque is the torque used to move the screw relative to the mating thread on the steering column after the screw has cycled through multiple extreme positions on the steering column multiple times; the tightening torque is the torque used to tighten the screw to the mating thread on the steering column before the screw has cycled through multiple extreme positions on the steering column multiple times.
[0007] In some embodiments, before controlling the steering column to cycle through multiple extreme positions multiple times, it also includes: marking multiple measurement points along the fitting gap; obtaining the change value of the fitting gap between two adjacent sub-shields, including: obtaining the change value of the fitting gap at the measuring point.
[0008] In some embodiments, two adjacent sub-shields are connected via a plurality of buckles, and the position of the measuring point is the position corresponding to the buckles.
[0009] In some embodiments, the durability of the steering column guard is determined based on the change in the fit clearance and the tightness of the fastener, including: if the change in the fit clearance is less than or equal to a first preset value and the tightness of the fastener is greater than or equal to a second preset value, then the durability of the steering column guard is determined to be qualified, wherein the first preset value and the second preset value are determined based on empirical values.
[0010] In some embodiments, the steering column is controlled to cycle through multiple extreme positions multiple times, including: controlling the steering column to cycle through multiple extreme positions multiple times at a first temperature, a second temperature, and a third temperature in sequence, wherein the second temperature is higher than the first temperature, and the first temperature is higher than the third temperature, and after completing the number of cycles corresponding to the temperature at each temperature, the change value of the fitting clearance is obtained respectively.
[0011] In some embodiments, the first temperature is 23°C, the second temperature is 70°C, and the third temperature is -25°C, wherein the number of cycles at the first temperature is 2400 times, the number of cycles at the second temperature is 300 times, and the number of cycles at the third temperature is 300 times.
[0012] In some embodiments, the extreme positions include a first extreme position, a second extreme position, a third extreme position and a fourth extreme position, the first extreme position being the position where the steering column is axially extended to its longest position and swung downward to its lowest position, the second extreme position being the position where the steering column is axially contracted to its shortest position and swung downward to its lowest position, the third extreme position being the position where the steering column is axially contracted to its shortest position and swung upward to its highest position, and the fourth extreme position being the position where the steering column is axially extended to its longest position and swung upward to its highest position; controlling the steering column to cycle through multiple extreme positions multiple times includes: controlling the steering column to cycle through the first extreme position, the second extreme position, the third extreme position and the fourth extreme position in sequence multiple times.
[0013] According to another aspect of the present application, an embodiment of the present application also provides a durability testing device for a steering column guard of a vehicle, which is used to execute the method provided by any embodiment of the present application, and the device includes: a first drive device, a second drive device and a temperature box, the first drive device and the second drive device are arranged in the temperature box, and the temperature box can control the temperature therein; when the method is executed by the device, the steering column with the steering column guard is arranged in the temperature box, the first drive device and the second drive device are respectively connected to the steering column, the first drive device is used to drive the steering column to move axially, and the second drive device is used to drive the steering column to swing up and down, and the first drive device and the second drive device operate alternately.
[0014] The embodiments of the present application provide a durability testing method and device for the steering column guard of a vehicle. The durability of the steering column guard is tested by controlling the steering column to cyclically move at multiple extreme positions of its adjustment, thereby driving the steering column guard to move. This can simulate the working condition in which the driver drives the steering column guard to move when adjusting the steering column, thereby obtaining more accurate durability data of the steering column guard and facilitating the quality control of the steering column guard. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0016] Figure 1 is a schematic diagram of a steering column provided by an embodiment of the present application cycling through multiple extreme positions;
[0017] Figure 2 is a schematic structural diagram of a durability testing device for a steering column shield of a vehicle provided in an embodiment of the present application;
[0018] Figure 3 is a schematic diagram of the positions of measurement points on one side of a steering column shield provided in an embodiment of the present application;
[0019] Figure 4 It is a schematic diagram of the positions of the measuring points on the other side of the steering column shield provided in an embodiment of the present application.
[0020] The reference numerals are as follows:
[0021] 10. Steering column; 101. First extreme position; 102. Second extreme position; 103. Third extreme position; 104. Fourth extreme position; 20. Steering column shield; 201. Measuring point; 21. Lower shield; 22. Upper shield; 30. First drive device; 40. Second drive device; 50. Temperature box.
[0022] It should be understood that the size of each part shown in the accompanying drawings is not drawn according to the actual proportional relationship. In addition, the same or similar reference numerals represent the same or similar components. DETAILED DESCRIPTION
[0023] The technical scheme of the preferred embodiment of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection claimed in the present application.
[0024] The words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0025] In the related art, the durability of the steering column guard is usually tested by the steering column guard vibrating with the hydraulic pressure of the whole vehicle. However, the inventor of the present application found that in the process of the driver actually driving the vehicle, the vibration of the vehicle is usually absorbed by the suspension system of the vehicle, and the driver usually does not feel the shaking of the steering wheel, that is, the steering column has almost no large amplitude vibration, and the steering column guard has almost no change; when the driver adjusts the steering column, it will cause the steering column to drive the direct movement of the steering column guard, and mechanical interference is more likely to occur in this process. The steering column guard is usually formed by a plurality of sub-guards (such as an upper guard and a lower guard) arranged circumferentially around the steering column. The plurality of sub-guards are fixed by mutual clamping, and one of the plurality of sub-guards is fixed to the steering column by screws, but the clamping parts of the plurality of sub-guards are not connected to the steering column. During the movement of the steering column, the position connected by the clamping connection is easy to cause cracking, gap and face difference caused by clamping failure in this movement process, which affects the sensory quality and even threatens the safety of the driver in the event of a vehicle collision accident. Therefore, a testing method for more accurately obtaining the durability of the steering column shroud is needed to better control the quality of the steering column shroud.
[0026] To at least partially solve the above problems, according to one aspect of the present application, an embodiment of the present application provides a durability test method for a steering column shield of a vehicle. The vehicle in the present application may be a vehicle, such as a car, or other types of vehicles with a steering column and a steering column shield, which is not limited in the present application. Figure 1 , Figure 2 , Figure 3 and Figure 4The steering column shield 20 is disposed at the portion of the steering column 10 located inside the vehicle to protect the steering column 10 and its attached mechanical parts, and at the same time protect the driver and decorate the appearance. The steering column shield 20 is formed by a plurality of sub-shiels arranged circumferentially around the steering column 10. Exemplarily, the number of sub-shiels may be two, and the two sub-shiels may be an upper shield 22 and a lower shield 21 of the steering column shield 20, respectively, and the upper shield 22 and the lower shield 21 may be connected by snap-fitting; of course, in other embodiments, the number of sub-shiels may be more, such as three, four, five, etc., and the present application does not limit this.
[0027] like Figure 1 As shown, the durability test method of the steering column shield 20 of the vehicle provided by the embodiment of the present application may include the following steps: determining multiple extreme positions when the steering column 10 is adjusted; controlling the steering column 10 to cycle through multiple extreme positions for more than 10 times; obtaining the change value of the fit clearance between two adjacent sub-shiels after the steering column 10 cycles through multiple extreme positions for more than 10 times; determining the durability of the steering column shield 20 at least based on the change value of the fit clearance. The fit clearance between two adjacent sub-shiels can be the distance between the mating surfaces of the two adjacent sub-shiels, and the change value of the fit clearance can reflect the reliability of the connection between the two sub-shiels. Exemplarily, the fit clearance can be measured by a feeler gauge, which is a tool for measuring small gaps, usually composed of a group of very thin metal sheets, each of which is marked with its actual thickness. These metal sheets are usually sorted according to standard sizes and form a caliper, which is used to measure the gap or spacing between mechanical parts.
[0028] The embodiment of the present application provides a method for testing the durability of the steering column guard 20 of the vehicle. The durability of the steering column guard 20 is tested by controlling the steering column 10 to cyclically move in multiple extreme positions of its adjustment, thereby driving the steering column guard 20 to move. This can simulate the working condition in which the driver drives the steering column guard 20 to move when adjusting the steering column 10, thereby obtaining more accurate durability data of the steering column guard 20, which is convenient for controlling the quality of the steering column guard 20.
[0029] In some embodiments, at least one sub-shield is fixedly connected to the steering column 10 by a fastener to achieve the fixation of the steering column shield 20 to the steering column 10, and the method further includes: obtaining the tightness of the fastener after the steering column 10 cycles through multiple extreme positions for multiple times; and determining the durability of the steering column shield 20 based on the change value of the fitting clearance and the tightness of the fastener. In this embodiment, the tightness of the fastener can reflect the reliability of the connection between the steering column shield 20 and the steering column 10, and the durability of the steering column shield 20 can be tested more comprehensively through the change value of the fitting clearance and the tightness of the fastener.
[0030] In some embodiments, the fastener is a screw, and the degree of tightening of the fastener is the ratio of the residual torque of the screw to the tightening torque of the screw; the residual torque is the torque used to move the screw relative to the mating thread on the steering column 10 after the screw has cycled through multiple extreme positions on the steering column 10 more than 10 times; the tightening torque is the torque used to tighten the screw to the mating thread on the steering column 10 before the screw has cycled through multiple extreme positions on the steering column 10 more than 10 times. The torque of the screw can be measured by a torque screwdriver, a torque meter, and other equipment. In this embodiment, the torque change of the screw after the cyclic movement of the steering column 10 can be obtained by the ratio of the residual torque to the tightening torque, thereby obtaining the reliability of the screw fixation.
[0031] Please combine Figure 3 and Figure 4 In some embodiments, before controlling the steering column 10 to cycle through multiple extreme positions for multiple times, it also includes: marking multiple measuring points 201 along the fitting gap; obtaining the change value of the fitting gap between two adjacent sub-shiels, including: obtaining the change value of the fitting gap at the measuring point 201. In this embodiment, by marking multiple measuring points 201 along the fitting gap, and obtaining the change value of the fitting gap between two adjacent sub-shiels by obtaining the gap change value at the measuring point 201, the measurement of the change value of the fitting gap can be simplified. Exemplarily, the measuring points 201 can be marked at intervals of 100-150mm on the fitting gap of the steering column shield 20. For the steering column shield 20 composed of the upper shield 22 and the lower shield 21, the measuring points 201 can be marked on the fitting gaps on both sides of the steering column shield 20. Exemplarily, the number of measuring points 201 can be 6, and three measuring points 201 are marked on the fitting gaps on both sides of the steering column shield 20.
[0032] In some embodiments, two adjacent sub-shiels are connected by multiple buckles, and the position of the measuring point 201 is the buckle corresponding position. In this embodiment, for the sub-shiels connected by the buckle, if the buckle position is not disengaged, the buckle will ensure that the gap and face difference at other positions are consistent. Therefore, measuring the change value of the matching gap at the buckle position is more representative.
[0033] In some embodiments, the durability of the steering column guard 20 is determined based on the change value of the fit clearance and the degree of tightening of the fastener, including: if the change value of the fit clearance is less than or equal to the first preset value and the degree of tightening of the fastener is greater than or equal to the preset value, then the durability of the steering column guard 20 is determined to be qualified, wherein the first preset value and the second preset value are determined based on empirical values. Exemplarily, the first preset value can be 0.2mm, and the second preset value can be 60%, that is, before and after the steering column 10 is controlled to cyclically move, the change value of the fit clearance is less than or equal to 0.2mm, and the degree of tightening of the fastener is greater than or equal to 60%, then the durability of the steering column guard 20 can be determined to be qualified.
[0034] In some embodiments, the steering column 10 is controlled to cycle through multiple extreme positions multiple times, including: controlling the steering column 10 to cycle through multiple extreme positions multiple times at a first temperature, a second temperature, and a third temperature in sequence, wherein the second temperature is greater than the first temperature, and the first temperature is greater than the third temperature, and after completing the number of cycles corresponding to the temperature at each temperature, respectively obtain the change value of the fitting clearance. It can be understood that temperature will affect the structural strength, so in this embodiment, the steering column 10 is controlled to cycle at different temperatures, and in this embodiment, by making the steering column 10 move preferentially at a first temperature with a moderate temperature, then at a second temperature with a higher temperature, and finally at a third temperature with a lower temperature, the steering column shield 20 can be tested first in a situation where it is not easy to fail, then at a higher temperature where it is more likely to fail, and finally at a lower temperature where it is most likely to fail, so that the difficulty of failure of the steering column shield 20 can be gradually increased, so that the steering column shield 20 can be easily tested through the failure of the steering column shield 20. The temperature determines the severity of the problem with the steering column guard 20. For example, if the steering column guard 20 fails at a relatively low temperature, the problem with the steering column guard 20 is not serious, but needs to be rectified. If the steering column guard 20 fails at a moderate temperature, there is a major problem with the steering column guard 20, and the steering column guard 20 needs to be fundamentally adjusted. At the same time, the tests are performed in the above order. If the steering column guard 20 fails at a moderate temperature, there is no need to perform the next test, so it can be determined that the durability of the steering column guard 20 is unqualified, and the testing process can be simplified.
[0035] In some embodiments, the first temperature is 23°C, the second temperature is 70°C, and the third temperature is -25°C, wherein the number of cycles at the first temperature is 2400 times, the number of cycles at the second temperature is 300 times, and the number of cycles at the third temperature is 300 times. In this embodiment, 23°C, 70°C, and -25°C are representative temperatures of normal temperature, high temperature, and low temperature during the actual use of the vehicle, respectively; as for the number of times, combined with the survey results of the drivers, according to the 15-year life cycle of the vehicle, the number of normal temperature adjustments per year is 160 times, and the high temperature and low temperature are 20 times respectively. The coldest and hottest times in a year are about 20 days, and the rest of the time is considered according to normal temperature, that is, the normal temperature adjustment is once every 2 days. Since the conditions of high and low temperatures are relatively harsh (problems are prone to occur at this temperature), in order to ensure the quality of the steering column guard 20, it is tested as required once a day.
[0036] See also Figure 1 In some embodiments, the extreme positions include a first extreme position 101, a second extreme position 102, a third extreme position 103 and a fourth extreme position 104, the first extreme position 101 being the position where the steering column 10 is axially extended to its longest position and swung downward to its lowest position, the second extreme position 102 being the position where the steering column 10 is axially contracted to its shortest position and swung downward to its lowest position, the third extreme position 103 being the position where the steering column 10 is axially contracted to its shortest position and swung upward to its highest position, and the fourth extreme position 104 being the position where the steering column 10 is axially extended to its longest position and swung upward to its highest position; controlling the steering column 10 to cycle through multiple extreme positions multiple times includes: controlling the steering column 10 to cycle through the first extreme position 101, the second extreme position 102, the third extreme position 103 and the fourth extreme position 104 in sequence multiple times. It can be understood that the adjustment method of the steering column 10 generally includes the up and down swinging of the steering column 10 and the extension and shortening of the steering column 10. The up and down swinging described in this application refers to the swinging along the height direction of the driver when the driver sits in the driving seat. In this embodiment, by controlling the steering column 10 to cycle through the first extreme position 101, the second extreme position 102, the third extreme position 103 and the fourth extreme position 104 in turn, the steering column 10 can pass through the representative position within its adjustment range to complete the movement cycle of the steering column 10. It can be understood that in other embodiments, when the steering column has more dimensional adjustment methods, it can have more extreme positions.
[0037] See also Figure 2According to another aspect of the present application, an embodiment of the present application further provides a durability test device for a steering column guard 20 of a vehicle, which is used to perform the method provided by any embodiment of the present application. The device includes: a first drive device 30, a second drive device 40 and a temperature box 50, wherein the first drive device 30 and the second drive device 40 are arranged in the temperature box 50, and the temperature box 50 can control the temperature therein; when the method is performed by the device, the steering column 10 with the steering column guard 20 is arranged in the temperature box 50, the first drive device 30 and the second drive device 40 are respectively connected to the steering column 10, the first drive device 30 is used to drive the steering column 10 to move axially, and the second drive device 40 is used to drive the steering column 10 to swing up and down, and the first drive device 30 and the second drive device 40 operate alternately. The alternating operation of the first drive device 30 and the second drive device 40 can realize the cyclic movement of the steering column in multiple extreme positions. In this embodiment, the first drive device 30 and the second drive device 40 can be drive devices such as cylinders, hydraulic cylinders, motors, etc. The first drive device 30 and the second drive device 40 can drive the steering column 10 to move, and the temperature box 50 can provide a test environment with different temperatures. The first drive device 30 and the second drive device 40 can be connected to the steering column 10 through a clamping head and a connecting shaft. The clamping head is used to clamp the steering column 10, and the connecting shaft is used to connect the drive device and the clamping head. In some embodiments, the connecting shaft can be a fixed shaft, and the clamping head can be fixed to the hydraulic cylinder through the fixed shaft, and the cycle process is controlled by linear movement. In some embodiments, the connecting shaft can be a rotatable shaft, and the clamping head can be fixed to the hydraulic cylinder through the rotatable shaft to achieve rotation, and the clamping head is driven to rotate by the linear movement of the hydraulic cylinder, and the entire test cycle is finally achieved by rotation. This structure has lower volume requirements for the temperature box 50.
[0038] Based on the above-mentioned embodiments of the present application, in the absence of explicit negation or conflict, the technical features of one embodiment may be beneficially combined with one or more other embodiments.
[0039] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are only for illustration and not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.
Claims
1. A method for testing the durability of a steering column shield of a vehicle, wherein the steering column shield is disposed on a portion of a steering column located inside the vehicle, and the steering column shield is formed by a plurality of sub-shiels circumferentially disposed on the steering column, wherein: The method comprises: determining a plurality of extreme positions of the steering column when adjusting; Controlling the steering column to cycle through the plurality of extreme positions multiple times; After the steering column cycles through the multiple limit positions for multiple times, obtaining a change value of the fitting clearance between two adjacent sub-shields; Based at least on the change in the fit clearance, durability of the steering column cover is determined.
2. The method according to claim 1, characterized in that At least one of the sub-shields is fixedly connected to the steering column by a fastener to achieve fixation of the steering column shield to the steering column, and the method further includes: After the steering column cycles through the plurality of extreme positions for a plurality of times, obtaining a tightening degree of the fastener; The durability of the steering column cover is determined based on the change value of the fitting clearance and the tightening degree of the fastener.
3. The method according to claim 2, characterized in that The fastener is a screw, and the fastening degree of the fastener is the ratio of the residual torque of the screw to the tightening torque of the screw; The residual torque is the torque used by the screw to move relative to the mating thread on the steering column after the screw has cycled through the multiple extreme positions for multiple times; The tightening torque is the torque used when tightening the screw on the mating thread of the steering column before the screw cycles through the multiple limit positions for multiple times.
4. The method according to claim 1, characterized in that Before controlling the steering column to cycle through the multiple extreme positions multiple times, the method further includes: marking multiple measuring points along the fitting gap; Obtaining the change value of the fitting clearance between two adjacent sub-shields includes: obtaining the change value of the fitting clearance at the measuring point.
5. The method according to claim 4, characterized in that Two adjacent sub-shields are connected via a plurality of buckles, and the position of the measuring point is the position corresponding to the buckles.
6. The method according to claim 2, characterized in that Determining the durability of the steering column guard based on the change value of the fitting clearance and the tightening degree of the fastener includes: If the change value of the fitting clearance is less than or equal to a first preset value and the tightening degree of the fastener is greater than or equal to a preset value, it is determined that the durability of the steering column guard is qualified, wherein the first preset value and the second preset value are determined based on empirical values.
7. The method according to claim 1, characterized in that Controlling the steering column to cycle through the plurality of extreme positions multiple times comprises: The steering column is controlled to cycle through the multiple extreme positions multiple times at a first temperature, a second temperature, and a third temperature in sequence, wherein the second temperature is higher than the first temperature, and the first temperature is higher than the third temperature. After completing the number of cycles corresponding to the temperature at each temperature, the change value of the fitting clearance is obtained respectively.
8. The method according to claim 7, characterized in that The first temperature is 23°C, the second temperature is 70°C, and the third temperature is -25°C, wherein the number of cycles at the first temperature is 2400 times, the number of cycles at the second temperature is 300 times, and the number of cycles at the third temperature is 300 times.
9. The method according to claim 1, characterized in that: The limit positions include a first limit position, a second limit position, a third limit position and a fourth limit position, wherein the first limit position is a position where the steering column is axially extended to its longest position and swung downward to its lowest position, the second limit position is a position where the steering column is axially contracted to its shortest position and swung downward to its lowest position, the third limit position is a position where the steering column is axially contracted to its shortest position and swung upward to its highest position, and the fourth limit position is a position where the steering column is axially extended to its longest position and swung upward to its highest position; Controlling the steering column to cycle through the multiple extreme positions for multiple times includes: controlling the steering column to cycle through the first extreme position, the second extreme position, the third extreme position, and the fourth extreme position in sequence for multiple times.
10. A durability testing device for a steering column shield of a vehicle, used to perform the method according to any one of claims 1 to 9, characterized in that: The device includes: A first driving device, a second driving device and a temperature box, wherein the first driving device and the second driving device are arranged in the temperature box, and the temperature box can control the temperature therein; When the method is performed by the device, the steering column with the steering column guard is arranged in the temperature box, the first drive device and the second drive device are respectively connected to the steering column, the first drive device is used to drive the steering column to move axially, and the second drive device is used to drive the steering column to swing up and down, and the first drive device and the second drive device operate alternately.