Vehicle steering mechanism optimization experiment table for teaching demonstration

Abstract

The invention discloses a vehicle steering mechanism optimization experiment table for teaching demonstration, and the experiment table comprises a main experiment table, rotating discs, a trolley, an experiment table adjustment mechanism and a steering measurement mechanism, the top of the experiment table is provided with a plurality of rotating discs, and the wheels of the trolley are in one-to-one correspondence with the rotating discs. A plurality of experiment table adjusting mechanisms, a steering measuring mechanism and a buffer spring are arranged in the middle of the experiment table, and a vehicle steering test adjusting mechanism is arranged between the rotating disc and wheels of the trolley. By adjusting the gradient of the vehicle steering test adjusting mechanism and replacing the material of the rolling shaft in the vehicle steering test adjusting mechanism, the state of the vehicle in steering on the road surfaces with different road conditions and different gradients is simulated, so that the problem that the existing domestic entity teaching experiment table for optimization design of the vehicle steering mechanism is solved. And the problem that the steering of the vehicle on the road surfaces with different road conditions and different gradients cannot be demonstrated is solved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile teaching aids, in particular to a vehicle steering mechanism optimization test bench for teaching demonstration. Background Art

[0002] With the development of science and technology, the teaching mode is also advancing with the times, and experimental teaching is highly valued. In the field of teaching, there is an urgent need for advanced teaching aids. For engineering students, experimental teaching is particularly important. In order for students to fully understand what they have learned, scientific teaching aids are indispensable in related teaching. In university higher education, the teaching of modern optimization design methods for engineering students is highly valued. At the same time, mastering modern optimization design methods is also a difficult point for the educated. Colleges and universities lack materials and experimental benches for teaching optimization design methods. The problem of vehicle steering mechanism optimization is a typical case of applying mathematical principles for optimization design in engineering teaching. However, teachers often lack physical demonstration benches and can only conduct written lectures. The teaching effect is usually not ideal. The physical teaching experimental bench for the optimization design of vehicle steering mechanisms in China cannot demonstrate the state of the vehicle when it is turning on different road conditions and different slopes. Therefore, a vehicle steering mechanism optimization experimental bench for teaching demonstration is needed. Summary of the invention

[0003] The purpose of the present invention is to provide a vehicle steering mechanism optimization test bench for teaching demonstration, so as to solve the problem that the existing domestic physical teaching test bench for optimizing the design of vehicle steering mechanism cannot demonstrate the state of the vehicle when turning on roads with different road conditions and different slopes.

[0004] To achieve the above-mentioned purpose, the present invention discloses a vehicle steering mechanism optimization test bench for teaching demonstration, comprising a test bench, a rotating disk, a trolley, a test bench adjustment mechanism, a steering measurement mechanism and a buffer spring, wherein a plurality of the rotating disks are arranged on the top of the test bench, and the wheels of the trolley are arranged in a one-to-one correspondence with the rotating disks, a plurality of the test bench adjustment mechanisms and steering measurement mechanisms are arranged in the middle of the test bench, and a vehicle steering test adjustment mechanism is arranged between the rotating disk and the wheels of the trolley.

[0005] Preferably, the experimental platform comprises: an upper supporting platform and a lower supporting platform, the experimental platform adjustment mechanism is symmetrically arranged between the upper supporting platform and the lower supporting platform, a plurality of the rotating disks are rotatably connected to the top of the upper supporting platform, a plurality of the steering measurement mechanisms are arranged at the bottom of the upper supporting platform, and the steering measurement mechanisms correspond one-to-one to the rotating disks.

[0006] Preferably, the steering measurement mechanism rotates through the upper support platform and is fixedly connected to the rotating disk.

[0007] Preferably, the steering measurement mechanism comprises: a dial, a pointer and a rotating disk, the dial is provided on the outer wall of the rotating disk, the pointer is provided on the rotating disk, and the pointer points to the zero scale of the dial, and the vehicle steering test adjustment mechanism is provided on the top of the rotating disk.

[0008] Preferably, the steering mechanisms of the front wheels and rear wheels of the vehicle are both double rocker mechanisms.

[0009] Preferably, the vehicle steering test adjustment mechanism comprises: an L-shaped mounting seat, a rotating shaft, a guide mechanism, a guide slider, a drive motor, a first connecting rod, a roller mounting frame and an adjustment roller assembly;

[0010] The bottom of the L-shaped mounting seat is fixedly connected to the top of the rotating disk, the roller mounting frame is rotatably connected to the L-shaped mounting seat through the rotating shaft, the guide mechanism and the driving motor are symmetrically fixedly connected to the upper surface of the L-shaped mounting seat, the guide slider is slidably connected to the guide mechanism, the first connecting rod is provided between the roller mounting frame and the guide slider, and the two ends of the first connecting rod are rotatably connected to the roller mounting frame and the guide slider respectively, and the adjusting roller assembly is installed on the roller mounting frame.

[0011] Preferably, the guide mechanism includes: a guide shell and a first threaded rod, the guide shell is fixedly connected to the L-shaped mounting seat, the first threaded rod is arranged in the guide shell, and one end of the first threaded rod is rotatably connected to the inner wall of the guide shell, the other end of the first threaded rod is fixedly connected to the output shaft of the drive motor, the guide slider is sleeved on the outer wall of the first threaded rod, and a thread matching the first threaded rod is arranged in the guide slider.

[0012] Preferably, the adjusting roller assembly comprises: a guide rail, a guide seat, a roller mounting seat and a roller, the guide rail is symmetrically fixedly connected to the inner frame of the roller mounting frame, a plurality of the guide seats are slidably connected to the guide rail, a plurality of the roller mounting seats are fixedly connected to the top of the guide seat, and both ends of the roller are rotatably connected to the roller mounting seats.

[0013] Preferably, the experimental table adjustment mechanism includes: a dustproof shell 1, a first installation cavity, a second installation cavity, a drive motor 2, a support plate, a handle, a second connecting rod, a first gear, a second gear, a third connecting rod, a third gear, a fourth gear, an adjustment component, a third installation cavity, a threaded sleeve, a first bevel gear, a second bevel gear, a second threaded rod, an L-shaped support rod, a support table, a limit block, a limit slide groove, a fourth connecting rod, and a limit slider;

[0014] The bottom of the dustproof housing is fixedly connected to the upper end of the lower support platform, and the first installation cavity, the second installation cavity and the third installation cavity are provided inside the dustproof housing;

[0015] The support plate is fixedly connected to the inner wall of the second mounting cavity, the upper end of the support plate is fixedly connected to the second drive motor, the output shaft of the second drive motor is fixedly connected to one end of the third connecting rod, the other end of the third connecting rod is rotatably connected to the inner wall of the second mounting cavity, the outer wall of the third connecting rod is fixedly sleeved with the third gear and the fourth gear, and the diameter of the third gear is larger than that of the fourth gear;

[0016] One end of the second connecting rod movably passes through the first dustproof housing and is fixedly connected to the handle, and the other end of the second connecting rod slides through the adjustment assembly, and the first gear and the second gear are fixedly sleeved on the outer wall of the second connecting rod, and the diameter of the first gear is smaller than that of the second gear;

[0017] The first gear is meshed with the third gear, and the second gear is meshed with the fourth gear;

[0018] One end of the adjusting component extending into the third mounting cavity is fixedly connected to the second bevel gear, the lower end of the threaded sleeve is rotatably connected to the bottom of the inner wall of the third mounting cavity, the outer wall of the threaded sleeve is fixedly sleeved with the first bevel gear, the first bevel gear and the second bevel gear are meshed, the lower end of the second threaded rod extends into the threaded sleeve and is threadedly connected thereto, and the upper end of the second threaded rod is fixedly connected to the lower end of the support platform;

[0019] Two groups of L-shaped support rods are symmetrically fixedly connected to the top of the support platform, and the tops of the L-shaped support rods abut against the bottom of the upper support platform;

[0020] The bottom of the limit block is fixedly connected to the bottom of the inner wall of the first installation cavity, the top of the limit block is provided with the limit slide groove, the limit slider is slidably connected to the limit slide groove, the fourth connecting rod is provided between the limit slider and the support platform, and the two ends of the fourth connecting rod are respectively rotatably connected to the limit slider and the support platform.

[0021] Preferably, the adjustment assembly includes: a second dustproof shell, a card block, a connecting block, a card rod, and a card slot. Two groups of the card blocks are symmetrically and fixedly connected to the inner wall of the second dustproof shell, and the card blocks are symmetrically provided with the same card slots. A number of the card rods are symmetrically provided on both sides of the connecting block. The card rods are movably connected to the card slots, and the second connecting rod movably passes through the second dustproof shell and is fixedly connected to the middle part of the connecting block. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the main structure of the present invention;

[0023] Figure 2 A top view of the steering measurement mechanism in the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the vehicle steering test adjustment mechanism of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the guide mechanism in the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the adjusting roller assembly in the present invention;

[0027] Figure 6 It is a side view structural diagram of the experimental platform adjustment mechanism in the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the regulating component in the present invention.

[0029] In the figure: 1. test bench; 101. buffer spring; 2. rotating disk; 3. trolley; 4. test bench adjustment mechanism; 5. steering measurement mechanism; 6. upper support platform; 7. lower support platform; 8. dial; 9. pointer; 10. rotating disk; 11. vehicle steering test adjustment mechanism; 12. L-shaped mounting seat; 13. rotating shaft; 14. guide mechanism; 15. guide slider; 16. driving motor; 17. first connecting rod; 18. roller mounting bracket; 19. adjusting roller assembly; 20. guide housing; 21. first threaded rod; 22. guide track; 23. guide seat; 24. roller mounting seat; 25. roller; 26. dustproof housing 1; 27. The first installation cavity; 28, the second installation cavity; 29, the second driving motor; 30, the support plate; 31, the handle; 32, the second connecting rod; 33, the first gear; 34, the second gear; 35, the third connecting rod; 36, the third gear; 37, the fourth gear; 38, the adjustment assembly; 39, the third installation cavity; 40, the threaded sleeve; 41, the first bevel gear; 42, the second bevel gear; 43, the second threaded rod; 44, the L-shaped support rod; 45, the support table; 46, the limit block; 47, the limit slide groove; 48, the fourth connecting rod; 49, the limit slide block; 50, the second dustproof shell; 51, the clamping block; 52, the connecting block; 53, the clamping rod; 54, the clamping groove. DETAILED DESCRIPTION

[0030] In the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0031] Example 1

[0032] The embodiment of the present invention provides a vehicle steering mechanism optimization test bench for teaching demonstration. Figure 1 The present invention provides a technical solution: including a test bench 1, a rotating disk 2, a trolley 3, a test bench adjustment mechanism 4 and a steering measurement mechanism 5, wherein a plurality of the rotating disks 2 are arranged on the top of the test bench 1, and the wheels of the trolley 3 are arranged one-to-one corresponding to the rotating disks 2, a plurality of the test bench adjustment mechanisms 4, the steering measurement mechanisms 5 and the buffer springs 101 are arranged in the middle of the test bench 1, and a vehicle steering test adjustment mechanism 11 is arranged between the rotating disk 2 and the wheels of the trolley 3.

[0033] The working principle and beneficial effects of the above technical solution are as follows: during the teaching demonstration, the wheels of the trolley 3 are swung so that the wheels drive the rotating disk 2 to rotate. At this time, the steering measuring mechanism 5 rotates in the same direction at the same time driven by the rotating disk 2, so as to obtain the steering angle of the wheels of the trolley 3. While the trolley 3 is rotating, the slope of the vehicle steering test adjustment mechanism 11 is adjusted and the material of the roller in the vehicle steering test adjustment mechanism 11 is replaced to simulate the state of the vehicle turning on roads with different road conditions and different slopes. Among them, the setting of the buffer spring 101 can slow down the resonance generated during the demonstration after the trolley 3 is started on the test bench 1, thereby solving the problem that the existing domestic physical teaching test bench with optimized design of vehicle steering mechanism cannot demonstrate the state of the vehicle turning on roads with different road conditions and different slopes.

[0034] Example 2

[0035] Based on Example 1, please refer to Figure 2The experimental platform 1 includes: an upper support platform 6 and a lower support platform 7, the experimental platform adjustment mechanism 4 is symmetrically arranged between the upper support platform 6 and the lower support platform 7, the top of the upper support platform 6 is rotatably connected to a plurality of the rotating disks 2, and the bottom of the upper support platform 6 is provided with a plurality of the steering measurement mechanisms 5, and the steering measurement mechanisms 5 correspond to the rotating disks 2 one by one.

[0036] The steering measurement mechanism 5 rotates through the upper support platform 6 and is fixedly connected to the rotating disk 2 .

[0037] The steering measurement mechanism 5 includes: a dial 8, a pointer 9 and a rotating disk 10. The dial 8 is provided on the outer wall of the rotating disk 10. The pointer 9 is provided on the rotating disk 10, and the pointer 9 points to the zero scale of the dial 8. The top of the rotating disk 10 is provided with the vehicle steering test adjustment mechanism 11.

[0038] The steering mechanisms of the front wheels and rear wheels of the car 3 are both double rocker mechanisms.

[0039] The working principle and beneficial effects of the above technical solution are as follows: when the rotating disk 2 rotates, it will drive the rotating disk 10 installed under the upper support platform 6 to rotate synchronously. When the rotating disk 10 rotates, the pointer 9 will swing with the rotating disk 10, and combined with the scale marked on the dial 8, the turning angle of the wheels of the car 3 can be obtained. Among them, the setting of the experimental platform adjustment mechanism 4 can adjust the spacing and angle between the support platform 6 and the lower support platform 7, so that the experimental platform 1 can adapt to different teaching scenarios.

[0040] Example 3

[0041] Based on any one of Examples 1-2, please refer to Figure 3-4 The vehicle steering test adjustment mechanism 11 includes: an L-shaped mounting seat 12, a rotating shaft 13, a guide mechanism 14, a guide slider 15, a drive motor 16, a first connecting rod 17, a roller mounting frame 18 and an adjustment roller assembly 19;

[0042] The bottom of the L-shaped mounting seat 12 is fixedly connected to the top of the rotating disk 10, the roller mounting frame 18 is rotatably connected to the L-shaped mounting seat 12 through the rotating shaft 13, the upper surface of the L-shaped mounting seat 12 is symmetrically fixedly connected with the guide mechanism 14 and the driving motor 16, the guide slider 15 is slidably connected to the guide mechanism 14, the first connecting rod 17 is provided between the roller mounting frame 18 and the guide slider 15, and the two ends of the first connecting rod 17 are rotatably connected to the roller mounting frame 18 and the guide slider 15 respectively, and the adjusting roller assembly 19 is installed on the roller mounting frame 18.

[0043] The guide mechanism 14 includes: a guide shell 20 and a first threaded rod 21. The guide shell 20 is fixedly connected to the L-shaped mounting seat 12. The first threaded rod 21 is arranged in the guide shell 20, and one end of the first threaded rod 21 is rotatably connected to the inner wall of the guide shell 20, and the other end of the first threaded rod 21 is fixedly connected to the output shaft of the drive motor 16. The guide slider 15 is sleeved on the outer wall of the first threaded rod 21, and a thread matching the first threaded rod 21 is arranged in the guide slider 15.

[0044] The adjusting roller assembly 19 includes: a guide rail 22, a guide seat 23, a roller mounting seat 24 and a roller 25. The guide rail 22 is symmetrically fixedly connected to the inner frame of the roller mounting frame 18, a plurality of the guide seats 23 are slidably connected to the guide rail 22, a plurality of the roller mounting seats 24 are fixedly connected to the top of the guide seat 23, and both ends of the roller 25 are rotatably connected to the roller mounting seats 24.

[0045] Preferably, the roller mounting seat 24 and the roller 25 are detachably connected.

[0046] The working principle and beneficial effects of the above technical solution are as follows: when it is necessary to simulate the state of the trolley 3 turning under different slopes, the drive motor 16 is started to drive the first threaded rod 21 to rotate in the guide housing 20. At this time, the guide slider 15 slides on the guide mechanism 14, thereby driving the roller mounting frame 18 to rise or fall through the first connecting rod 17. When it is necessary to demonstrate the influence of different vehicle tire diameters on the turning process, the position of the guide seat 23 on the guide track 22 is moved to adjust the spacing between the multiple groups of rollers 25 to adapt to tires of different diameters. When it is necessary to demonstrate the turning state of the vehicle under different road conditions, it is only necessary to replace the rollers 25 with different surface features, wherein the surface of the roller 25 may be distributed with protrusions or depressions. In addition, when the shapes of the protrusions or depressions are the same, their sizes may also be different. Sleeves with different features may also be sleeved on the roller 25 to simulate different road conditions. The coordinated use of the guide seat 23 and the guide track 22 makes the guide seat 23 move more smoothly.

[0047] Example 4

[0048] Based on any one of Examples 1-3, please refer to Figure 5-6The experimental table adjustment mechanism 4 includes: a dustproof housing 26, a first installation cavity 27, a second installation cavity 28, a drive motor 29, a support plate 30, a handle 31, a second connecting rod 32, a first gear 33, a second gear 34, a third connecting rod 35, a third gear 36, a fourth gear 37, an adjustment assembly 38, a third installation cavity 39, a threaded sleeve 40, a first bevel gear 41, a second bevel gear 42, a second threaded rod 43, an L-shaped support rod 44, a support table 45, a limit block 46, a limit slide groove 47, a fourth connecting rod 48, and a limit slider 49;

[0049] The bottom of the dustproof housing 26 is fixedly connected to the upper end of the lower support platform 7, and the first installation cavity 27, the second installation cavity 28 and the third installation cavity 39 are provided inside the dustproof housing 26;

[0050] The support plate 30 is fixedly connected to the inner wall of the second mounting cavity 28, the upper end of the support plate 30 is fixedly connected to the second drive motor 29, the output shaft of the second drive motor 29 is fixedly connected to one end of the third connecting rod 35, the other end of the third connecting rod 35 is rotatably connected to the inner wall of the second mounting cavity 28, the outer wall of the third connecting rod 35 is fixedly sleeved with the third gear 36 and the fourth gear 37, and the diameter of the third gear 36 is larger than that of the fourth gear 37;

[0051] One end of the second connecting rod 32 movably passes through the dustproof housing 26 and is fixedly connected to the handle 31. The other end of the second connecting rod 32 slides through the adjustment assembly 38. The first gear 33 and the second gear 34 are fixedly sleeved on the outer wall of the second connecting rod 32, and the diameter of the first gear 33 is smaller than that of the second gear 34.

[0052] The first gear 33 is meshed with the third gear 36, and the second gear 34 is meshed with the fourth gear 37;

[0053] One end of the adjustment component 38 extending into the third installation cavity 39 is fixedly connected to the second bevel gear 42, the lower end of the threaded sleeve 40 is rotatably connected to the bottom of the inner wall of the third installation cavity 39, the outer wall of the threaded sleeve 40 is fixedly sleeved with the first bevel gear 41, the first bevel gear 41 is meshed with the second bevel gear 42, the lower end of the second threaded rod 43 extends into the threaded sleeve 40 and is threadedly connected thereto, and the upper end of the second threaded rod 43 is fixedly connected to the lower end of the support platform 45;

[0054] Two groups of L-shaped support rods 44 are symmetrically fixedly connected to the top of the support platform 45, and the top of the L-shaped support rod 44 abuts against the bottom of the upper support platform 6;

[0055] The bottom of the limit block 46 is fixedly connected to the bottom of the inner wall of the first mounting cavity 27, the top of the limit block 46 is provided with the limit slide groove 47, the limit slider 49 is slidably connected to the limit slide groove 47, the fourth connecting rod 48 is provided between the limit slider 49 and the support platform 45, and the two ends of the fourth connecting rod 48 are rotatably connected to the limit slider 49 and the support platform 45 respectively.

[0056] The adjustment assembly 38 includes: a second dustproof shell 50, a clamping block 51, a connecting block 52, a clamping rod 53, and a clamping slot 54. Two groups of the clamping blocks 51 are symmetrically fixedly connected to the inner wall of the second dustproof shell 50, and the clamping blocks 51 are symmetrically provided with the same clamping slots 54. A plurality of clamping rods 53 are symmetrically provided on both sides of the connecting block 52. The clamping rods 53 are movably connected to the clamping slots 54. The second connecting rod 32 movably passes through the second dustproof shell 50 and is fixedly connected to the middle part of the connecting block 52.

[0057] The working principle and beneficial effects of the above technical solution are as follows: in order to use different teaching scenarios, when it is necessary to adjust the height of the experimental bench 1, start the drive motor 29 to drive the third connecting rod 35 to rotate, and at this time, the third gear 36 drives the first gear 33 to rotate, and the second connecting rod 32 drives the second bevel gear 42 to rotate through the adjustment component 38 under the drive of the first gear 33, and the first bevel gear 41 meshing with the second bevel gear 42 drives the threaded sleeve 40 to rotate, and at this time, the second threaded rod 43 extends out under the action of the threaded sleeve 40, thereby lifting the support platform 45 upward, and while the support platform 45 moves upward, the upper support platform 6 is lifted through the L-shaped support rod 44 (the description of the above working principle represents the working condition of the experimental bench 1 during the lifting process, and when lowering, only the drive motor 29 needs to be reversed).

[0058] When the angle of the experimental table 1 needs to be adjusted, it is only necessary to adjust the rising speed of the experimental table adjustment mechanism 4 on one side of the two sets of experimental table adjustment mechanisms 4 set as the symmetry axis at the center of the above support platform 6 (i.e., left high and right low, or left low and right high), so as to adjust the inclination angle of the experimental table 1;

[0059] Among them, when adjusting (the following description indicates that the adjustment is made to the laboratory bench adjustment mechanism 4 located on the left side), the user pushes the handle 31 inward, and the second connecting rod 32 drives the connecting block 52 to move toward the direction close to the second bevel gear 42, and makes the clamping rod 53 engage with the clamping block 51 located on the side close to the second bevel gear 42, so that the second gear 34 on the second connecting rod 32 is engaged with the fourth gear 37, and the second gear 34 is disengaged from the third gear 36. At this time, the speed at which the laboratory bench adjustment mechanism 4 located on the left side lifts up the left end of the upper support platform 6 is less than the speed at which the laboratory bench adjustment mechanism 4 located on the right side lifts up the right end of the upper support platform 6 (that is, the transmission ratio of the drive motor 29 in the laboratory bench adjustment mechanism 4 on the left side is less than the transmission ratio of the drive motor 29 in the laboratory bench adjustment mechanism 4 on the right side), so the laboratory bench 1 will present a state of left low and right high, so that the angle of the laboratory bench 1 can be controlled by controlling the rotation time of the drive motor 29.

[0060] The speed of the test bench 1 during raising and lowering can also be adjusted by simultaneously pulling out or pushing in the handles 31 in the test bench adjusting mechanisms 4 on both sides.

[0061] Example 5

[0062] On the basis of any one of Embodiments 1-4, further comprising:

[0063] A counter, which is arranged on the outer wall of the buffer spring 101 and is used to detect the number of compressions of the buffer spring 1011;

[0064] A force sensor, which is arranged on the contact surface between the buffer spring 101 and the upper support platform 6, and is used to detect the pressure applied by the upper support platform 6 on the buffer spring 101;

[0065] An alarm, wherein the alarm is arranged on the experimental table 1;

[0066] A controller, the controller is arranged on the experimental table 1, and the controller is electrically connected to the counter, the force sensor, and the alarm respectively;

[0067] The controller controls the alarm to work based on the counter and the force sensor, including the following steps:

[0068] Step 1: Based on the detection values ​​of the counter and the force sensor, the service life coefficient of the buffer spring 101 is calculated by formula (1):

[0069]

[0070] Wherein, Y is the service life coefficient of the buffer spring 101, X is the number of compressions of the buffer spring 101 recorded by the counter, and F iis the pressure applied by the upper support platform 6 to the buffer spring 101 detected by the force sensor when the buffer spring 101 is compressed for the i-th time, R1 is the outer diameter of the buffer spring 101, R2 is the inner diameter of the buffer spring 101, E1 is the elastic modulus of the buffer spring 101, and E2 is the shear modulus of the buffer spring 101. is the Poisson's ratio of the material of the buffer spring 101, τ1 is the tensile strength of the buffer spring 101, τ2 is the compressive strength of the buffer spring 101, and S is the cross-sectional area of ​​the buffer spring 101;

[0071] Step 2: The controller compares the service life coefficient of the buffer spring 101 with the preset service life coefficient of the buffer spring 101. When the service life coefficient of the buffer spring 101 is less than the preset service life coefficient of the buffer spring 101, the controller controls the alarm to issue an alarm prompt.

[0072] The working principle and beneficial effects of the above technical solution are as follows: when the buffer spring 101 is used for a long time, the service life coefficient of the buffer spring 101 will gradually decrease with the increase of the use time. If the service life coefficient of the buffer spring 101 is less than the preset service life coefficient, it means that the buffer spring 101 will have safety problems during continued use, and the spring 101 will have a high probability of breaking. The above solution can detect the force borne by the buffer spring 101 during the compression process through the counter and the force sensor, and then calculate the service life coefficient of the buffer spring 101 by accumulating multiple forces. The controller can control the alarm to work according to the service life coefficient of the buffer spring 101. When the service life coefficient of the buffer spring 101 is less than the preset service life coefficient of the buffer spring 101 (0.85), the controller controls the alarm to issue an alarm prompt, and the user replaces the entire buffer spring 101 in time according to the alarm, thereby improving the safety of the equipment. The above solution can monitor the service life coefficient of the buffer spring 101, improve the degree of automation through automatic alarm, and replace the buffer spring 101 in time, avoiding the impact of the buffer spring 101 on the equipment usage experience, extending the service life coefficient of the equipment, and increasing the intelligence of the equipment.

[0073] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

Claims

1. A vehicle steering mechanism optimization test bench for teaching demonstration, characterized in that: The invention comprises a test bench (1), a rotating disk (2), a trolley (3), a test bench adjustment mechanism (4) and a steering measurement mechanism (5); a plurality of the rotating disks (2) are arranged on the top of the test bench (1), and the wheels of the trolley (3) are arranged in a one-to-one correspondence with the rotating disks (2); a plurality of the test bench adjustment mechanisms (4), the steering measurement mechanisms (5) and a buffer spring (101) are arranged in the middle of the test bench (1); and a vehicle steering test adjustment mechanism (11) is arranged between the rotating disk (2) and the wheels of the trolley (3).

2. The vehicle steering mechanism optimization test bench for teaching demonstration according to claim 1 is characterized in that: The experimental platform (1) comprises: an upper support platform (6) and a lower support platform (7), wherein the experimental platform adjustment mechanism (4) is symmetrically arranged between the upper support platform (6) and the lower support platform (7), wherein the top of the upper support platform (6) is rotatably connected to a plurality of the rotating disks (2), and the bottom of the upper support platform (6) is provided with a plurality of the steering measurement mechanisms (5), and the steering measurement mechanisms (5) correspond one to one to the rotating disks (2).

3. The vehicle steering mechanism optimization test bench for teaching demonstration according to claim 2 is characterized in that: The steering measurement mechanism (5) rotates through the upper support platform (6) and is fixedly connected to the rotating disk (2).

4. The vehicle steering mechanism optimization test bench for teaching demonstration according to claim 1 is characterized in that: The steering measurement mechanism (5) comprises: a scale plate (8), a pointer (9) and a rotating disk (10); the scale plate (8) is arranged on the outer wall of the rotating disk (10); the pointer (9) is arranged on the rotating disk (10), and the pointer (9) points to the zero scale of the scale plate (8); and the vehicle steering test adjustment mechanism (11) is arranged on the top of the rotating disk (10).

5. The vehicle steering mechanism optimization test bench for teaching demonstration according to claim 1 is characterized in that: The steering mechanisms of the front wheels and rear wheels of the trolley (3) are both double rocker mechanisms.

6. The vehicle steering mechanism optimization test bench for teaching demonstration according to claim 4 is characterized in that: The vehicle steering test adjustment mechanism (11) comprises: an L-shaped mounting seat (12), a rotating shaft (13), a guide mechanism (14), a guide slider (15), a driving motor (16), a first connecting rod (17), a roller mounting frame (18) and an adjustment roller assembly (19); The bottom of the L-shaped mounting seat (12) is fixedly connected to the top of the rotating disk (10); the roller mounting frame (18) is rotatably connected to the L-shaped mounting seat (12) via the rotating shaft (13); the guide mechanism (14) and the driving motor (16) are symmetrically fixedly connected to the upper surface of the L-shaped mounting seat (12); the guide slider (15) is slidably connected to the guide mechanism (14); the first connecting rod (17) is provided between the roller mounting frame (18) and the guide slider (15); and the two ends of the first connecting rod (17) are rotatably connected to the roller mounting frame (18) and the guide slider (15) respectively; and the adjusting roller assembly (19) is installed on the roller mounting frame (18).

7. The vehicle steering mechanism optimization test bench for teaching demonstration according to claim 6 is characterized in that: The guide mechanism (14) comprises: a guide housing (20) and a first threaded rod (21); the guide housing (20) is fixedly connected to the L-shaped mounting seat (12); the first threaded rod (21) is arranged inside the guide housing (20); one end of the first threaded rod (21) is rotatably connected to the inner wall of the guide housing (20); the other end of the first threaded rod (21) is fixedly connected to the output shaft of the drive motor (16); the guide slider (15) is sleeved on the outer wall of the first threaded rod (21); and a thread matching the first threaded rod (21) is arranged inside the guide slider (15).

8. The vehicle steering mechanism optimization test bench for teaching demonstration according to claim 6, characterized in that: The adjusting roller assembly (19) comprises: a guide rail (22), a guide seat (23), a roller mounting seat (24) and a roller (25); the guide rail (22) is symmetrically fixedly connected to the inner frame of the roller mounting frame (18); a plurality of the guide seats (23) are slidably connected to the guide rail (22); a plurality of the roller mounting seats (24) are fixedly connected to the top of the guide seat (23); and both ends of the roller (25) are rotatably connected to the roller mounting seats (24).

9. The vehicle steering mechanism optimization test bench for teaching demonstration according to claim 2, characterized in that: The experimental table adjustment mechanism (4) comprises: a dustproof housing (26), a first installation cavity (27), a second installation cavity (28), a second drive motor (29), a support plate (30), a handle (31), a second connecting rod (32), a first gear (33), a second gear (34), a third connecting rod (35), a third gear (36), a fourth gear (37), an adjustment component (38), a third installation cavity (39), a threaded sleeve (40), a first bevel gear (41), a second bevel gear (42), a second threaded rod (43), an L-shaped support rod (44), a support table (45), a limit block (46), a limit slide groove (47), a fourth connecting rod (48), and a limit slide block (49); The bottom of the dustproof housing (26) is fixedly connected to the upper end of the lower support platform (7), and the dustproof housing (26) is provided with the first installation cavity (27), the second installation cavity (28) and the third installation cavity (39); The support plate (30) is fixedly connected to the inner wall of the second mounting cavity (28); the upper end of the support plate (30) is fixedly connected to the second drive motor (29); the output shaft of the second drive motor (29) is fixedly connected to one end of the third connecting rod (35); the other end of the third connecting rod (35) is rotatably connected to the inner wall of the second mounting cavity (28); the outer wall of the third connecting rod (35) is fixedly sleeved with the third gear (36) and the fourth gear (37); and the diameter of the third gear (36) is larger than that of the fourth gear (37); One end of the second connecting rod (32) movably passes through the dustproof housing (26) and is fixedly connected to the handle (31); the other end of the second connecting rod (32) slides through the adjustment assembly (38); the first gear (33) and the second gear (34) are fixedly sleeved on the outer wall of the second connecting rod (32), and the diameter of the first gear (33) is smaller than that of the second gear (34); The first gear (33) is meshed with the third gear (36), and the second gear (34) is meshed with the fourth gear (37); One end of the adjustment component (38) extending into the third installation cavity (39) is fixedly connected to the second bevel gear (42); the lower end of the threaded sleeve (40) is rotatably connected to the bottom of the inner wall of the third installation cavity (39); the outer wall of the threaded sleeve (40) is fixedly sleeved with the first bevel gear (41); the first bevel gear (41) and the second bevel gear (42) are meshed; the lower end of the second threaded rod (43) extends into the threaded sleeve (40) and is threadedly connected thereto; the upper end of the second threaded rod (43) is fixedly connected to the lower end of the support platform (45); Two groups of L-shaped support rods (44) are symmetrically fixedly connected to the top of the support platform (45), and the top of the L-shaped support rod (44) abuts against the bottom of the upper support platform (6); The bottom of the limit block (46) is fixedly connected to the bottom of the inner wall of the first mounting cavity (27), the top of the limit block (46) is provided with the limit slide groove (47), the limit slider (49) is slidably connected to the limit slide groove (47), the fourth connecting rod (48) is provided between the limit slider (49) and the support platform (45), and the two ends of the fourth connecting rod (48) are rotatably connected to the limit slider (49) and the support platform (45) respectively.

10. The vehicle steering mechanism optimization test bench for teaching demonstration according to claim 9, characterized in that: The adjustment assembly (38) comprises: a second dustproof shell (50), a clamping block (51), a connecting block (52), a clamping rod (53), and a clamping slot (54); two groups of the clamping blocks (51) are symmetrically fixedly connected to the inner wall of the second dustproof shell (50); the clamping blocks (51) are symmetrically provided with the same clamping slots (54); a plurality of clamping rods (53) are symmetrically provided on both sides of the connecting block (52); the clamping rods (53) are movably connected to the clamping slots (54); and the second connecting rod (32) movably passes through the second dustproof shell (50) and is fixedly connected to the middle part of the connecting block (52).

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