A wheel simulation device for warehousing and logistics vehicles

Abstract

A wheel simulation device for a storage and logistics vehicle includes: a support frame, including a base, a column, a T-shaped mounting plate and support ribs, the base is fixed on a test plane; the bottom of the column is fixedly connected to the base, the top of the column is provided with a suspension beam, and the suspension beam is provided with a slide groove along the axial direction; the tail of the T-shaped mounting plate is inserted into the slide groove; there is a pair of support ribs, which are staggered up and down on the upper and lower parts of the column; a pressure device, suspended on the head of the T-shaped mounting plate, includes an elevator and a suspension, the top of the elevator is fixedly installed on the head of the T-shaped mounting plate, and the bottom lifting end is fixedly connected to the top of the suspension; the suspension includes an upper suspension, a spring and a lower suspension; the spring is arranged between the upper and lower suspensions; and a simulated wheel assembly, including a mounting frame, a simulated wheel and a drive motor. The beneficial effect of the present invention is that the suspension can prevent the driving wheel from being stuck due to insufficient roundness of the wheel surface, so that the pressure applied by the driving wheel to the roller is more balanced, and the fault tolerance of the system is improved.

Description

Technical Field

[0001] The invention relates to a wheel simulation device for a warehousing logistics vehicle. Background Art

[0002] With the great development of intelligent logistics, the application of warehouse logistics vehicles is becoming more and more extensive, and the requirements for them are also getting higher and higher. Goods need to be delivered from the warehouse to the workshop and often need to pass through different roads. At present, the wheels and tires of warehouse logistics vehicles mostly use smooth surfaces. This type of warehouse logistics vehicle wheel is simple to manufacture and highly economical; however, when the warehouse vehicle is driving on a road with accumulated rain, the smooth surface of the warehouse logistics vehicle wheel is easy to produce water film between the road surface, causing slipping.

[0003] The anti-skid pattern on the tire increases the friction of the warehouse logistics vehicle wheels during load operation, reduces the slipping phenomenon, and makes the operation smooth and light. Therefore, more and more warehouse logistics vehicle wheels with anti-skid patterns have been used. However, what kind of pattern can better improve the adaptability of warehouse logistics vehicle wheels to different road surfaces, and there are few professional equipment that can accurately detect the impact of different forms of patterns on warehouse logistics vehicle wheels.

[0004] When the wheel surface roundness of the warehouse logistics vehicle is not high enough, the bearing technology is not high enough, or other accidental factors occur, the wheel of the warehouse logistics vehicle may get stuck during operation, making it difficult to inspect the wheel of the warehouse logistics vehicle. Summary of the invention

[0005] In order to solve the specific impact of anti-skid patterns on the wheels of warehouse logistics vehicles and prevent the wheels of warehouse logistics vehicles from getting stuck, a warehouse logistics vehicle wheel simulation device with suspension was designed.

[0006] The wheel simulation device for a storage logistics vehicle of the present invention is characterized by comprising:

[0007] The support frame comprises a base, a column, a T-shaped mounting plate and a supporting rib, wherein the base is fixed on the test plane and used for mounting the column; the bottom of the column is fixedly connected to the base, a cantilever beam is arranged on the top of the column, and a slide groove is arranged along the axial direction of the cantilever beam for mounting the T-shaped mounting plate; the tail of the T-shaped mounting plate is inserted into the slide groove so that the tail of the T-shaped mounting plate slides in the slide groove of the cantilever beam; a locking bolt through hole is arranged on the T-shaped mounting plate, and the locking between the T-shaped mounting plate and the cantilever beam is realized by the locking bolt; there is a pair of supporting ribs, which are staggered up and down on the upper and lower parts of the column;

[0008] The pressure device is suspended on the head of the T-shaped mounting plate, and includes a lifter and a suspension. The top of the lifter is fixedly mounted on the head of the T-shaped mounting plate, and the lifting end of the bottom is fixedly connected to the top of the suspension. The suspension includes an upper suspension, a spring and a lower suspension. The upper suspension has a threaded hole for connecting with the lifting end of the lifter. The lower suspension is provided with a positioning hole for fixing the simulated wheel assembly. The spring is arranged between the upper and lower suspensions for connecting the upper and lower suspensions.

[0009] And a simulated wheel assembly, including a mounting frame, a simulated wheel and a drive motor, the top of the mounting frame is fixed to the lower suspension by screws; the simulated wheel is horizontally installed on the bottom of the mounting frame through the wheel axle; the drive motor is fixed on the mounting frame, and the output shaft of the drive motor is fixedly connected to one end of the wheel axle, which is used to drive the simulated wheel to rotate circumferentially around the wheel axle to simulate the wheel of a warehousing and logistics vehicle.

[0010] The support rib is a right-angled triangular plate, which is divided into an upper support rib and a lower support rib. The upper support rib and the lower support rib are staggered and installed on the upper and lower parts of the column, and the first right-angled side of the upper support rib is fixedly connected to the bottom surface of the cantilever beam of the column, and the second right-angled side of the upper support rib is connected to the vertical support beam of the column; the first right-angled side of the lower support rib is fixedly connected to the base, and the second right-angled side of the upper support rib is connected to the vertical support beam of the column, and the longitudinal height of the vertex of the upper support rib falling on the column is kept lower than the longitudinal height of the vertex of the lower support rib falling on the column.

[0011] The upper suspension and the lower suspension are both square plates, wherein a sleeve is provided on the bottom surface of the upper suspension, the sleeve is perpendicular to the upper suspension, and the sleeve is coaxial with the threaded hole; a plug-in portion that can be inserted into the sleeve is provided on the top surface of the lower suspension; the spring is arranged in the sleeve, the upper end is connected to the upper suspension, and the lower end is connected to the plug-in portion.

[0012] The cross section of the plug-in portion and the cross section of the sleeve are non-circular, so as to prevent the upper and lower suspension frames from rotating when the spring is extended or retracted.

[0013] The vertical support beam and suspension beam of the column are integrally formed to form a 7-shaped column.

[0014] The vertical support beam is a square column, wherein a support rib is respectively installed on the front and rear end surfaces of the square column, and the two support ribs are kept in the same vertical plane.

[0015] The warehousing and logistics vehicle wheel grip detection device constructed using the warehousing and logistics vehicle wheel simulation device described in the present invention is characterized in that it includes a warehousing and logistics vehicle wheel simulation device and a road surface simulation detection machine, wherein the warehousing and logistics vehicle wheel simulation device is arranged directly above the road surface simulation detection machine, and by adjusting the position of the simulated wheel assembly under the suspension, the center axis of the simulated wheel assembly and the center axis of the road surface simulation detection machine are in the same vertical plane, and the simulated wheel of the simulated wheel assembly is pressed against the simulated road surface of the road surface simulation detection machine.

[0016] The road simulation test machine includes a road simulator for simulating the driving state of the wheels of a storage logistics vehicle, an auxiliary torque driving device for transmitting torque to the road simulator, a speed measuring device for measuring the rotation speed of the road simulator, and a controller for controlling the operation of the entire test device, wherein the road simulator, the auxiliary torque driving device and the speed measuring device are all installed on a mounting surface or lifting equipment at the same horizontal height; the torque input end and the torque output end of the road simulator are respectively connected to the auxiliary torque driving device and the speed measuring device; the signal connection ports of the road simulator, the auxiliary torque driving device and the speed measuring device are respectively electrically connected to the corresponding signal connection ports of the controller;

[0017] The road simulator includes a wheel assembly for simulating a road surface and two sets of transmission shaft assemblies for transmitting torque. The rolling surface of the wheel assembly is used as a simulated road surface and is supported at the bottom of the wheels of the storage and logistics vehicle to simulate the state of the storage and logistics vehicle driving on the road surface. The two shaft ends are respectively connected to the auxiliary torque driving device and the speed measuring device through two sets of transmission shaft assemblies, so that the power of the auxiliary torque driving device is sequentially transmitted to the wheel assembly, and then transmitted to the speed measuring device by the wheel assembly;

[0018] The auxiliary torque driving device is arranged at one end of the road simulator, and comprises a torque output device and a torque output device support seat. The torque output device is installed on the mounting surface or the lifting device through the torque output device support seat, and the central axis of the torque output device is kept coaxial with the road simulator; the torque output end of the torque output device is connected to the torque input end of the wheel assembly through the transmission shaft assembly, and the signal input end of the torque output device is electrically connected to the corresponding signal output end of the controller, so as to output the set torque to the wheel assembly;

[0019] The speed measuring device is arranged at the other end of the road simulator, and includes a speed sensor and a speed sensor support seat. The speed sensor is supported on the mounting surface or lifting equipment through the speed sensor support seat, and the central axis of the speed sensor is kept coaxial with the road simulator; the torque input end of the speed sensor is connected to the torque output end of the wheel assembly through the transmission shaft assembly, and the signal output end of the speed sensor is electrically connected to the corresponding signal input end of the controller, which is used to detect the rotation speed of the wheel assembly in real time and transmit the detection signal to the controller for processing.

[0020] The present invention is used to detect the specific improvement of the grip of a wheel with a certain pattern of a storage logistics vehicle on a wet road. The specific steps are as follows:

[0021] Place the warehouse logistics vehicle or the vehicle on the rotating wheel assembly, and keep the wheel to be tested in contact with the surface of the rotating wheel, and the central axis of the wheel to be tested and the central axis of the rotating wheel are in the same vertical plane;

[0022] The rain sprinkler is turned on, spraying water on the surface of the rotor to simulate the ground on a rainy day;

[0023] Adjust the load size of the warehouse logistics vehicle, and indirectly adjust the positive pressure of the wheel to be tested to closely contact the running wheel as the simulated road surface;

[0024] The wheel to be tested starts to rotate, and wait for a while until the wheel to be tested rotates stably;

[0025] The torque output device generates a slowly increasing torque, which is transmitted to the wheel through the coupling. When the torque continues to increase until the wheel speed is lower than the speed of the wheel to be tested, the tire begins to slip. When the torque continues to increase until the wheel to be tested cannot make the wheel rotate, the torque at this time is the maximum grip torque of the driving wheel on a flooded road surface. This torque divided by the radius of the driving wheel is the maximum grip.

[0026] The present invention is used to detect the influence of the pattern on the wheel of a storage vehicle on the service life of the driving wheel. The specific steps are as follows:

[0027] Place the warehouse logistics vehicle or the vehicle on the rotating wheel assembly, and keep the wheel to be tested in contact with the surface of the rotating wheel, and the central axis of the wheel to be tested and the central axis of the rotating wheel are in the same vertical plane;

[0028] Adjust the load size of the warehouse logistics vehicle, and indirectly adjust the positive pressure of the wheel to be tested to closely contact the running wheel as the simulated road surface;

[0029] The wheel to be tested starts to rotate, and waits for a while so that the wheel to be tested can rotate stably;

[0030] The torque output device generates an appropriate torque T to simulate the friction between the ground and the wheel to be tested, with the unit of N*m:

[0031] T = G + M × g × f × r (1);

[0032] Where G is the vehicle's own weight, in kg; M is the rated load, in kg; g is the acceleration due to gravity, in m / s2; r is the radius of the driving wheel, in m; and f is the rolling friction coefficient between the wheel and the roller material.

[0033] The wheel to be tested runs for a previously set period of time under rated load, then stops to detect the wear of its tire surface;

[0034] Remove the wheel with a certain anti-skid pattern to be tested, replace it with a smooth wheel, perform the wear test under the same conditions and for the same time, and compare the wear of the two tires.

[0035] The beneficial effects of the present invention are:

[0036] The invention can prevent the driving wheel from being stuck due to insufficient roundness of the wheel surface through the suspension, so that the pressure applied by the driving wheel to the roller is more balanced, thereby improving the fault tolerance of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural diagram of the present invention.

[0038] Figure 2 It is a structural diagram of the support frame of the present invention.

[0039] Figure 3 It is a structural diagram of a T-shaped mounting plate of the present invention.

[0040] Figure 4 It is a structural diagram of the suspension of the present invention.

[0041] Figure 5 It is a structural diagram of a wheel grip detection device for warehousing and logistics vehicles.

[0042] Figure 6 It is a structural diagram of a road surface simulation testing machine.

[0043] Figure 7 This is one of the structural diagrams of the drive shaft assembly.

[0044] Figure 8 This is the second structural diagram of the transmission shaft assembly. DETAILED DESCRIPTION

[0045] The present invention is further described below in conjunction with the accompanying drawings.

[0046] Refer to the attached figure:

[0047] Embodiment 1 A wheel simulation device for a storage logistics vehicle according to the present invention comprises:

[0048] The support frame 1 comprises a base 11, a column 12, a T-shaped mounting plate 13 and a supporting rib 14. The base is fixed on the test plane and is used to install the column. The bottom of the column is fixedly connected to the base. A cantilever beam is provided on the top of the column 12, and a slide groove 121 is provided along the axial direction of the cantilever beam for installing the T-shaped mounting plate. The tail of the T-shaped mounting plate is inserted into the slide groove so that the tail of the T-shaped mounting plate slides in the slide groove of the cantilever beam. A locking bolt through hole 131 is provided on the T-shaped mounting plate, and the locking between the T-shaped mounting plate and the cantilever beam is realized by the locking bolt. There is a pair of supporting ribs, which are staggered up and down on the upper and lower parts of the column.

[0049] The pressure device 2 is suspended on the head of the T-shaped mounting plate, and includes a lifter 21 and a suspension 22. The top of the lifter is fixedly mounted on the head of the T-shaped mounting plate, and the lifting end of the bottom is fixedly connected to the top of the suspension. The suspension 22 includes an upper suspension 221, a spring 222 and a lower suspension 223. The upper suspension has a threaded hole for connecting with the lifting end of the lifter. The lower suspension is provided with a positioning hole for fixing the simulated wheel assembly. The spring is arranged between the upper and lower suspensions for connecting the upper and lower suspensions.

[0050] And a simulated wheel assembly 3, including a mounting frame 31, a simulated wheel 32 and a drive motor 33, the top of the mounting frame is fixed to the lower suspension by screws; the simulated wheel is horizontally installed on the bottom of the mounting frame through the axle; the drive motor is fixed on the mounting frame, and the output shaft of the drive motor is fixedly connected to one end of the axle, which is used to drive the simulated wheel to rotate circumferentially around the axle to simulate the wheel of a warehousing and logistics vehicle.

[0051] The support rib 14 is a right-angled triangular plate, which is divided into an upper support rib 141 and a lower support rib 142. The upper support rib and the lower support rib are staggered and installed on the upper and lower parts of the column, and the first right-angled side of the upper support rib is fixedly connected to the bottom surface of the cantilever beam of the column, and the second right-angled side of the upper support rib is connected to the vertical support beam of the column; the first right-angled side of the lower support rib is fixedly connected to the base, and the second right-angled side of the upper support rib is connected to the vertical support beam of the column, and the longitudinal height of the vertex of the upper support rib falling on the column is kept lower than the longitudinal height of the vertex of the lower support rib falling on the column.

[0052] The upper suspension 221 and the lower suspension 222 are both square plates, wherein a sleeve is provided on the bottom surface of the upper suspension, the sleeve is perpendicular to the upper suspension, and the sleeve is coaxial with the threaded hole; a plug-in portion that can be inserted into the sleeve is provided on the top surface of the lower suspension; the spring is arranged in the sleeve, the upper end is connected to the upper suspension, and the lower end is connected to the plug-in portion.

[0053] The cross section of the plug-in portion and the cross section of the sleeve are non-circular, so as to prevent the upper and lower suspension frames from rotating when the spring is extended or retracted.

[0054] The vertical support beam and suspension beam of the column are integrally formed to form a 7-shaped column.

[0055] The vertical support beam is a square column, wherein a support rib is respectively installed on the front and rear end surfaces of the square column, and the two support ribs are kept in the same vertical plane.

[0056] Example 2 A wheel grip detection device for a warehousing and logistics vehicle constructed using the warehousing and logistics vehicle wheel simulation device described in the present invention comprises a warehousing and logistics vehicle wheel simulation device and a road surface simulation detection machine 4, wherein the warehousing and logistics vehicle wheel simulation device is arranged directly above the road surface simulation detection machine, and the position of the simulated wheel assembly under the suspension is adjusted so that the central axis of the simulated wheel assembly and the central axis of the road surface simulation detection machine are in the same vertical plane, and the simulated wheel of the simulated wheel assembly is pressed against the simulated road surface of the road surface simulation detection machine.

[0057] The road simulation test machine 4 includes a road simulator 41 for simulating the driving state of the wheels of a storage logistics vehicle, an auxiliary torque driving device 42 for transmitting torque to the road simulator, a speed measuring device 43 for measuring the rotation speed of the road simulator, and a controller 44 for controlling the operation of the entire test device, wherein the road simulator, the auxiliary torque driving device and the speed measuring device are all installed on a mounting surface or lifting equipment at the same horizontal height; the torque input end and the torque output end of the road simulator are respectively connected to the auxiliary torque driving device and the speed measuring device; the signal connection ports of the road simulator, the auxiliary torque driving device and the speed measuring device are respectively electrically connected to the corresponding signal connection ports of the controller;

[0058] The road simulator 41 includes a wheel assembly 411 for simulating a road surface and two sets of transmission shaft assemblies 412 for transmitting torque. The rolling surface of the wheel assembly is used as a simulated road surface, and is used to support the bottom of the wheels of the storage and logistics vehicle to simulate the state of the storage and logistics vehicle driving on the road. The two ends of the wheel assembly are respectively connected to the auxiliary torque driving device and the speed measuring device through two sets of transmission shaft assemblies, so that the power of the auxiliary torque driving device is sequentially transmitted to the wheel assembly, and then transmitted to the speed measuring device by the wheel assembly;

[0059] The auxiliary torque driving device 42 is arranged at one end of the road simulator, and includes a torque output device 421 and a torque output device support seat 422. The torque output device is installed on the mounting surface or the lifting device through the torque output device support seat, and the central axis of the torque output device is kept coaxial with the road simulator; the torque output end of the torque output device is connected to the torque input end of the wheel assembly through the transmission shaft assembly, and the signal input end of the torque output device is electrically connected to the corresponding signal output end of the controller, so as to output the set torque to the wheel assembly;

[0060] The speed measuring device 43 is arranged at the other end of the road simulator, and includes a speed sensor 431 and a speed sensor support seat 432. The speed sensor is supported on the mounting surface or lifting equipment through the speed sensor support seat, and the central axis of the speed sensor is kept coaxial with the road simulator; the torque input end of the speed sensor is connected to the torque output end of the wheel assembly through the transmission shaft assembly, and the signal output end of the speed sensor is electrically connected to the corresponding signal input end of the controller, which is used to detect the rotation speed of the wheel assembly in real time and transmit the detection signal to the controller for processing.

[0061] Embodiment 3 The difference between this embodiment and embodiment 2 is that: the wheel assembly includes a wheel and a wheel shaft, the wheel coaxial sleeve is arranged outside the wheel shaft, and the two are fixedly connected; the wheel shaft is a square shaft; the transmission shaft assembly 412 has two sets, which are respectively arranged on both sides of the wheel, including a stepped shaft 4121, a disc 4122, a sleeve 4123, a support, a support bearing seat and a support bearing, and the stepped shaft is a three-step stepped shaft, wherein the stepped shaft and the sleeve are separately installed on both sides of the disc, the two are coaxial, and the first of the stepped shaft The first step is the section with the largest diameter, and its end is coaxially fixed with a disc; the third step of the stepped shaft is the section with the smallest diameter, and its end is connected to the torque output device or the speed measuring device on the same side through a coupling; one end of the sleeve is fixedly connected to the disc, and the other end is provided with a square socket for inserting the square shaft end of the runner shaft; the support bearing sleeve is arranged on the outside of the second step of the stepped shaft and installed on the support bearing seat; the support bearing seat is installed on the mounting surface through a support frame, and the support bearing seat is coaxial with the torque output device and the speed measuring device.

[0062] The rotating wheel and the rotating wheel shaft are integrally formed.

[0063] The shaft sleeve is a square sleeve.

[0064] The support and the speed sensor support seat are both "X"-shaped supports.

[0065] It also includes a spray device 5, which is arranged next to the road simulator, and the spray device includes a simulated rain water nozzle 51 and a connecting pipe 52, the first end of the connecting pipe is connected to the external water source pipeline, and the second end of the connecting pipe extends to the roller assembly; the simulated rain water nozzle is installed at the second end of the connecting pipe, and the water outlet of the simulated rain water nozzle is aligned with the rolling surface of the wheel assembly, which is used to simulate a wet road surface.

[0066] Example 5 The present invention is used to detect the improvement of the grip of a wheel with a certain pattern on a warehouse logistics vehicle on a wet road. The specific steps are as follows:

[0067] Place the warehouse logistics vehicle or the vehicle on the rotating wheel assembly, and keep the wheel to be tested in contact with the surface of the rotating wheel, and the central axis of the wheel to be tested and the central axis of the rotating wheel are in the same vertical plane;

[0068] The rain sprinkler is turned on, spraying water on the surface of the rotor to simulate the ground on a rainy day;

[0069] Adjust the load size of the warehouse logistics vehicle, and indirectly adjust the positive pressure of the wheel to be tested to closely contact the running wheel as the simulated road surface;

[0070] The wheel to be tested starts to rotate, and wait for a while until the wheel to be tested rotates stably;

[0071] The torque output device generates a slowly increasing torque, which is transmitted to the wheel through the coupling. When the torque continues to increase until the wheel speed is lower than the speed of the wheel to be tested, the tire begins to slip. When the torque continues to increase until the wheel to be tested cannot make the wheel rotate, the torque at this time is the maximum grip torque of the driving wheel on a flooded road surface. This torque divided by the radius of the driving wheel is the maximum grip.

[0072] Example 6 The present invention is used to detect the effect of the pattern on the wheel of a storage vehicle on the life of the driving wheel. The specific steps are as follows:

[0073] Place the warehouse logistics vehicle or the vehicle on the rotating wheel assembly, and keep the wheel to be tested in contact with the surface of the rotating wheel, and the central axis of the wheel to be tested and the central axis of the rotating wheel are in the same vertical plane;

[0074] Adjust the load size of the warehouse logistics vehicle, and indirectly adjust the positive pressure of the wheel to be tested to closely contact the running wheel as the simulated road surface;

[0075] The wheel to be tested starts to rotate, and waits for a while so that the wheel to be tested can rotate stably;

[0076] The torque output device generates an appropriate torque T to simulate the friction between the ground and the wheel to be tested, with the unit of N*m:

[0077] T = G + M × g × f × r (1);

[0078] Where G is the vehicle's own weight, in kg; M is the rated load, in kg; g is the acceleration due to gravity, in m / s2; r is the radius of the driving wheel, in m; and f is the rolling friction coefficient between the wheel and the roller material.

[0079] The wheel to be tested runs for a previously set period of time under rated load, then stops to detect the wear of its tire surface;

[0080] Remove the wheel with a certain anti-skid pattern to be tested, replace it with a smooth wheel, perform the wear test under the same conditions and for the same time, and compare the wear of the two tires.

[0081] The contents described in the embodiments of this specification are merely an enumeration of implementation forms of the inventive concept. The protection scope of the present invention should not be regarded as limited to the specific forms described in the embodiments. The protection scope of the present invention also includes equivalent technical means that can be thought of by those skilled in the art based on the inventive concept.

Claims

1. A wheel simulation device for a storage logistics vehicle, characterized in that: include: The support frame comprises a base, a column, a T-shaped mounting plate and a supporting rib, wherein the base is fixed on the test plane and used for mounting the column; the bottom of the column is fixedly connected to the base, a cantilever beam is arranged on the top of the column, and a slide groove is arranged along the axial direction of the cantilever beam for mounting the T-shaped mounting plate; the tail of the T-shaped mounting plate is inserted into the slide groove so that the tail of the T-shaped mounting plate slides in the slide groove of the cantilever beam; a locking bolt through hole is arranged on the T-shaped mounting plate, and the locking between the T-shaped mounting plate and the cantilever beam is realized by the locking bolt; there is a pair of supporting ribs, which are staggered up and down on the upper and lower parts of the column; The pressure device is suspended on the head of the T-shaped mounting plate, and includes a lifter and a suspension. The top of the lifter is fixedly mounted on the head of the T-shaped mounting plate, and the lifting end of the bottom is fixedly connected to the top of the suspension. The suspension includes an upper suspension, a spring and a lower suspension. The upper suspension has a threaded hole for connecting with the lifting end of the lifter. The lower suspension is provided with a positioning hole for fixing the simulated wheel assembly. The spring is arranged between the upper and lower suspensions for connecting the upper and lower suspensions. And a simulated wheel assembly, including a mounting frame, a simulated wheel and a drive motor, wherein the top of the mounting frame is fixedly mounted on the lower suspension frame by screws; the simulated wheel is horizontally mounted on the bottom of the mounting frame through the wheel axle; the drive motor is fixedly mounted on the mounting frame, and the output shaft of the drive motor is fixedly connected to one end of the wheel axle, and is used to drive the simulated wheel to rotate circumferentially around the wheel axle to simulate the wheel of a storage logistics vehicle; The support rib is a right-angled triangular plate, which is divided into an upper support rib and a lower support rib. The upper support rib and the lower support rib are staggered and installed on the upper and lower parts of the column, and the first right-angled side of the upper support rib is fixedly connected to the bottom surface of the cantilever beam of the column, and the second right-angled side of the upper support rib is connected to the vertical support beam of the column; the first right-angled side of the lower support rib is fixedly connected to the base, and the second right-angled side of the upper support rib is connected to the vertical support beam of the column, and the vertical height of the vertex of the upper support rib falling on the column is kept lower than the vertical height of the vertex of the lower support rib falling on the column The upper suspension and the lower suspension are both square plates, wherein a sleeve is provided on the bottom surface of the upper suspension, the sleeve is perpendicular to the upper suspension, and the sleeve is coaxial with the threaded hole; a plug-in portion that can be inserted into the sleeve is provided on the top surface of the lower suspension; the spring is arranged in the sleeve, the upper end is connected to the upper suspension, and the lower end is connected to the plug-in portion.

2. A wheel simulation device for a storage logistics vehicle as claimed in claim 1, characterized in that: The cross section of the plug-in portion and the cross section of the sleeve are non-circular, so as to prevent the upper and lower suspension frames from rotating when the spring is extended or retracted.

3. A wheel simulation device for a storage logistics vehicle as claimed in claim 1, characterized in that: The vertical support beam and suspension beam of the column are integrally formed to form a 7-shaped column.

4. A wheel simulation device for a storage logistics vehicle as claimed in claim 1, characterized in that: The vertical support beam is a square column, wherein a support rib is respectively installed on the front and rear end surfaces of the square column, and the two support ribs are kept in the same vertical plane.

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