A comprehensive performance test bench for AGV drive systems

Abstract

The present invention relates to a comprehensive performance test bench for an AGV drive system, comprising a workbench, a driven wheel and a driving wheel detection assembly, and a force-applying assembly, a driven wheel assembly, and a driving wheel assembly arranged on the same plane of the workbench. The force-applying assembly comprises a fixed structure, a rotating structure, and a telescopic pressurizing structure fixed to the workbench. The rotating structure drives the telescopic pressurizing structure to contract by rotating and moving, so that the driven wheel in the driven wheel assembly fits with the driving wheel in the driving wheel assembly. During the force-applying and pressurizing process, the present invention only needs to rotate and adjust the rotating structure to achieve pressure application, without the need for complicated and heavy weights or counterweights to be carried, thus saving manpower and time. The driven wheel detection assembly, the driving wheel detection assembly, and the counting display are used to detect and digitally display the number of revolutions of the driven wheel and the driving wheel. They are easy to use and can also determine whether there is slippage during the operation of the driving wheel and the driven wheel.

Description

Technical Field

[0001] The invention belongs to the technical field of AGV testing, and in particular relates to a comprehensive performance test bench for an AGV drive system. Background Art

[0002] AGV (Automated Guided Vehicle) is a transport vehicle equipped with an automatic guidance device such as electromagnetic or optical, which can travel along a specified guide path and has safety protection and various transfer functions.

[0003] With the rapid development of the AGV industry, AGV usage conditions and scenarios are constantly being challenged, and higher requirements are being placed on the stability, safety, and lifespan of AGV operations. After the development of a new AGV, it is generally necessary to test the stability, safety, and lifespan of its key components, such as drive wheels, reducers, and motors.

[0004] In the prior art, there are two methods for testing the above-mentioned key components:

[0005] The first method is to directly conduct ground driving tests on the AGV, but this method occupies a large area and has high investment costs.

[0006] The second method uses a dedicated testing machine, where a counterweight or weight is placed directly above the driving wheel being tested, forcing it to engage the driven wheel below and perform a load-bearing test. However, this method is labor-intensive and time-consuming to replace.

[0007] Therefore, it is necessary to provide a comprehensive performance test bench that is more convenient to operate and saves more time and manpower. Summary of the Invention

[0008] (1) Technical issues to be resolved

[0009] In order to solve the problems in the prior art that the pressure application operation of the test bench is troublesome and consumes a lot of manpower and time, the present invention provides an AGV drive system comprehensive performance test bench.

[0010] (2) Technical solution

[0011] In order to achieve the above objectives, the main technical solutions adopted by the present invention include:

[0012] An AGV drive system comprehensive performance test bench, comprising a workbench, a force application assembly, a driven wheel assembly, a driving wheel assembly, a driven wheel detection assembly, and a driving wheel detection assembly;

[0013] The force-applying assembly, the driven wheel assembly, and the driving wheel assembly are respectively arranged on the same plane of the workbench;

[0014] The driving wheel assembly is used to install the part to be tested;

[0015] The driven wheel assembly includes a driven wheel and a brake connected to the driven wheel; the driving wheel assembly includes a driving wheel;

[0016] The force-applying assembly includes a fixed structure, a rotating structure, and a telescopic pressurizing structure;

[0017] The fixed structure is fixedly arranged on the workbench; the rotating structure rotates relative to the fixed structure, thereby pushing the telescopic pressurizing structure to contract, and applying pressure to the driven wheel assembly or the driving wheel assembly, so that the driven wheel fits with the driving wheel, or the driving wheel fits with the driven wheel;

[0018] The driven wheel detection assembly and the driving wheel detection assembly are used to detect the number of revolutions of the driven wheel and the driving wheel respectively;

[0019] The driven wheel detection component and the driving wheel detection component are respectively connected to the driven wheel counting display and the driving wheel counting display arranged on the workbench for communication.

[0020] In the AGV drive system comprehensive performance test bench as described above, preferably, the rotating structure includes a screw, the fixed structure includes a screw bracket, and the screw bracket is fixedly arranged on the workbench; the screw is threadedly connected to the screw hole on the screw bracket;

[0021] The telescopic pressurizing structure includes a spring and a spring pressure plate;

[0022] The spring is located between a first spring sleeve and a second spring sleeve, the first spring sleeve is arranged on the screw rod, and the second spring sleeve is arranged on the spring pressure plate;

[0023] A guide member is fixedly provided on the spring pressure plate, and the other end of the guide member is passed through the driven wheel assembly or the driving wheel assembly;

[0024] A pressure sensor is provided on the driven wheel assembly or the driving wheel assembly;

[0025] When the screw is rotated, the spring is compressed, driving the spring pressure plate to apply pressure to the pressure sensor, the driven wheel assembly, and the driving wheel assembly, thereby causing the driven wheel to mate with the driving wheel, or vice versa. The force-applying assembly has a simple structure and operation method. By manually rotating the adjustment screw, the spring and spring pressure plate can be driven to apply pressure to the driving wheel assembly and the driven wheel assembly, saving time and effort and enabling continuous pressure adjustment.

[0026] In the aforementioned AGV drive system comprehensive performance test bench, the pressure sensor is preferably in communication with a pressure display mounted on the workbench, the pressure display being configured to display the pressure between the driven and driving wheels. The present invention records the pressure between the driving and driven wheel assemblies via the pressure sensor and digitally outputs it via the pressure display, thereby determining the stability of the rubber tire being tested.

[0027] As described above, the AGV drive system comprehensive performance test bench, preferably, the driven wheel assembly further includes a guide rail, a mounting plate, a rotating shaft and a coupling;

[0028] The guide rail is fixedly arranged on the workbench, and a slider is provided on the lower end surface of the mounting plate. The slider cooperates with the guide rail and can move along the guide rail;

[0029] The driven wheel is mounted on the rotating shaft via a first flat key;

[0030] Both ends of the rotating shaft are respectively mounted in bearing seats, the bearing seats are respectively fixedly mounted on bearing seat mounting frames, and the bearing seat mounting frames are respectively fixedly mounted on the mounting plates;

[0031] The brake is a magnetic powder brake, which is mounted on a magnetic powder brake mounting frame, and the magnetic powder brake mounting frame is fixedly arranged on the mounting plate;

[0032] The magnetic powder brake is mounted on the coupling via a second flat key, and the other end of the coupling is connected to the rotating shaft.

[0033] In the aforementioned AGV drive system comprehensive performance test bench, the driven wheel assembly preferably further includes a liquid pan disposed on the mounting plate, the liquid pan containing a liquid such that the driven wheel contacts the liquid during rotation. Liquids such as water or oil may be added to the liquid pan so that the driven wheel adheres to the liquid during rotation, thereby simulating actual ground conditions such as oil or water stains encountered by the driving wheel assembly, thereby providing more realistic test results.

[0034] In the AGV drive system comprehensive performance test bench as described above, preferably, the brake is connected to the tension controller via a cable, and the tension controller is arranged on the workbench to adjust the braking torque of the brake. During the actual test process, the operator can control the braking torque of the brake by adjusting the current in the tension controller through the current knob. On the other hand, the current of the tension controller is proportional to the braking torque of the brake, and the braking torque of the magnetic powder brake is the same as the output torque of the motor in the driving wheel assembly. Therefore, when testing the stability of the driving wheel assembly, the current of the tension controller can be adjusted so that the driving wheel assembly can be tested under full power operation.

[0035] As described above, the AGV drive system comprehensive performance test bench, preferably, the driving wheel assembly further includes a driving wheel bracket, a motor and a reducer;

[0036] The motor is connected to the reducer, and the reducer is connected to the driving wheel;

[0037] The driving wheel bracket is fixedly arranged on the workbench, and the reducer is fixedly arranged on the driving wheel bracket through an adapter plate.

[0038] As described above, the AGV drive system comprehensive performance test bench, preferably, the driven wheel detection assembly includes a driven wheel counting display bracket, a driven wheel detection piece, and a driven wheel counting sensor;

[0039] The driven wheel counting display bracket is fixedly arranged on the bearing seat mounting frame, the driven wheel counting sensor is installed on the driven wheel counting display bracket, and the driven wheel detection piece is arranged on the rotating shaft and can rotate synchronously with the rotating shaft;

[0040] The driven wheel counting display is communicatively connected to the driven wheel counting sensor;

[0041] Every time the driven wheel rotates one circle, the rotating shaft drives the driven wheel detection piece to rotate one circle, the driven wheel counting sensor performs a detection, and the detection is displayed and recorded on the driven wheel counting display.

[0042] As described above, the AGV drive system comprehensive performance test bench, preferably, the driving wheel detection component includes a driving wheel counting display bracket, a driving wheel detection piece, and a driving wheel counting sensor;

[0043] The driving wheel counting display bracket is fixedly arranged on the workbench, the driving wheel counting sensor is installed on the driving wheel counting display bracket, and the driving wheel detection piece is arranged on the driving wheel and can rotate synchronously with the driving wheel;

[0044] The driving wheel counting display is communicatively connected to the driving wheel counting sensor;

[0045] Each time the driving wheel rotates one circle, the driving wheel drives the driving wheel detection plate to rotate one circle, and the driving wheel counting sensor performs a detection, which is displayed and recorded on the driving wheel counting display. The aforementioned driven wheel detection assembly and driving wheel detection assembly have simple structures. The detection plates and counting sensors installed on the driven and driving wheels record the number of rotations of the tested driving wheel and record it on the display. Based on the digital output of the driving wheel counting display, the mileage of the driving wheel assembly can be directly determined, and the lifespan of the tested component can be determined. In addition, the tester can also determine whether the pressure between the driving and driven wheels needs to be adjusted based on the counting ratio between the driving and driven wheel counting displays.

[0046] (3) Beneficial effects

[0047] The beneficial effects of the present invention are:

[0048] The present invention arranges the force-applying assembly, driven wheel assembly, and driving wheel assembly on the same horizontal plane of the workbench, facilitating disassembly, replacement, and maintenance of the test piece and various components within the test bench. The force-applying assembly of the present invention enables continuous pressure application and is easily adjustable. Pressure application is achieved simply by rotating the rotating structure, eliminating the need for complex and heavy weights or counterweights, saving manpower and time.

[0049] The driven wheel detection assembly and the driving wheel detection assembly of the present invention can respectively detect the number of revolutions of the driven wheel and the driving wheel, and cooperate with the driven wheel counting display and the driving wheel counting display to perform digital output. The mileage of the driving wheel assembly can be directly obtained according to the value displayed on the counting display, which is easy to use.

[0050] Furthermore, the present invention can determine whether the driving and driven wheels are slipping during operation by comparing the values ​​displayed on the driven wheel counter indicator to the values ​​displayed on the driving wheel counter indicator. If the values ​​displayed on the two counter indicators do not conform to the fixed ratio, this indicates that in addition to rolling motion, slippage is occurring between the driven and driving wheels, and in this case, the contact pressure between the brake wheel and the driving wheel needs to be further increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 This is a schematic diagram of the overall structure of the AGV drive system comprehensive performance test bench of the present invention;

[0052] Figure 2 Schematic diagram of the structure of the driven wheel assembly in the present invention;

[0053] Figure 3 is an exploded view of the driven wheel assembly of the present invention;

[0054] Figure 4 is a cross-sectional view of the driven wheel assembly of the present invention;

[0055] Figure 5 Schematic diagram of the structure of the driving wheel assembly in the present invention;

[0056] Figure 6 Schematic diagram of the structure of the force-applying component in the present invention;

[0057] Figure 7 is a schematic structural diagram of the force-applying component of the present invention at another angle;

[0058] Figure 8 is an exploded view of the force-applying assembly of the present invention;

[0059] Figure 9 Schematic diagram of the structure of the driven wheel detection assembly in the present invention;

[0060] Figure 10 It is a structural schematic diagram of the driving wheel detection component in the present invention.

[0061] [Description of Reference Numerals]

[0062] 1: workbench;

[0063] 2: Force-applying assembly; 21: Screw bracket; 22: Screw; 23: First spring sleeve; 24: Spring; 25: Spring pressure plate; 26: Pressure sensor; 27: Guide; 28: Second spring sleeve; 29: Handle;

[0064] 3: Driven wheel assembly; 31: Mounting plate; 32: Bearing seat; 33: Bearing seat mounting bracket; 34: Magnetic powder brake mounting bracket; 35: Liquid plate; 36: Guide rail; 37: Driven wheel; 38: Coupling; 39: Rotating shaft; 310: Magnetic powder brake; 311: First flat key; 312: Second flat key; 313: Vertical plate;

[0065] 4: driving wheel assembly; 41: driving wheel bracket; 42: adapter plate; 43: motor; 44: reducer; 45: driving wheel;

[0066] 5: driven wheel detection assembly; 51: driven wheel counting display bracket; 52: driven wheel detection piece; 53: driven wheel counting sensor;

[0067] 6: driving wheel detection assembly; 61: driving wheel counting display bracket; 62: driving wheel detection piece; 63: driving wheel counting sensor;

[0068] 7: Tension controller; 8: Pressure display; 9: Driven wheel counting display; 10: Driving wheel counting display. DETAILED DESCRIPTION

[0069] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0070] Example 1

[0071] like Figure 1-10 As shown, this embodiment provides an AGV drive system comprehensive performance test bench, including a workbench 1, a force-applying component 2, a driven wheel component 3, a driving wheel component 4, a driven wheel detection component 5 and a driving wheel detection component 6.

[0072] The force-applying assembly 2, the driven wheel assembly 3, and the driving wheel assembly 4 are respectively arranged on the same plane of the workbench 1, specifically on the upper surface of the workbench 1. In this embodiment, the force-applying assembly, the driven wheel assembly, and the driving wheel assembly are arranged on the same horizontal plane of the workbench, which facilitates the disassembly, replacement, and maintenance of the test piece and the various parts of the test bench.

[0073] The driving wheel assembly 4 is used to install the part to be tested, and specifically can be installed with any one of the motor, reducer or driving wheel to be tested.

[0074] The driven wheel assembly 3 includes a driven wheel 37 and a magnetic powder brake 310 connected to the driven wheel 37. The driving wheel assembly 4 includes a driving wheel 45. The driven wheel 37 is used to press the driving wheel 45 and rotate relative to the driving wheel 45 to simulate the actual ground environment. When testing the performance of the part to be tested under certain road conditions, the resistance of the road to the AGV cart, that is, the friction force of the road to the driving wheel is fixed. This resistance will form an opposition with the output of the motor, so the friction force needs to be simulated during the test process. The function of the magnetic powder brake 310 is to provide braking torque to simulate the resistance of the AGV cart under real road conditions.

[0075] The force-applying assembly 2 includes a fixed structure, a rotating structure, and a telescopic pressure-applying structure. The fixed structure is fixedly mounted on the workbench 1. The rotating structure rotates relative to the fixed structure, thereby pushing the telescopic pressure-applying structure to contract. The telescopic pressure-applying structure then applies pressure to the driven wheel assembly 3 or the driving wheel assembly 4, causing the driven wheel assembly to move toward the driving wheel assembly 4, or causing the driving wheel assembly 4 to move toward the driven wheel assembly 3, so that the driven wheel 37 is pressed tightly against the driving wheel 45, or the driving wheel 45 is pressed tightly against the driven wheel 37.

[0076] Compared with the existing technology, during the entire force-applying and pressurizing process, the force-applying component of this embodiment can achieve continuous pressurization, can be directly adjusted to any pressure value within the measuring range, and is easy to adjust. Pressure can be applied by simply rotating the rotating structure. There is no need for complicated and heavy weights or counterweights to be carried, saving manpower and time.

[0077] The driven wheel detection assembly 5 and the driving wheel detection assembly 6 are connected to a driven wheel counter display 9 and a driving wheel counter display 10, respectively. The driven wheel counter display 9 and the driving wheel counter display 10 are used to display and record the number of revolutions of the driven wheel 37 and the driving wheel 45, respectively. Therefore, the test bench of this embodiment is easy to use, and the mileage of the driving wheel assembly can be directly calculated based on the digital output of the driving wheel counter display 10.

[0078] In addition, this embodiment can also determine whether the driving wheel 45 and the driven wheel 37 are slipping during the test by comparing the values ​​displayed by the driven wheel counting display 9 and the driving wheel counting display 10. When the values ​​displayed by the driven wheel counting display 9 and the driving wheel counting display 10 do not conform to a fixed ratio relationship, such as the diameter ratio of the driving wheel and the driven wheel, it indicates that in addition to rolling motion, there is also slippage between the driven wheel and the driving wheel. In this case, it is necessary to further increase the contact pressure between the driven wheel 37 and the driving wheel 45. Therefore, the comprehensive performance test bench of this embodiment can adjust the load force of the tested driving wheel based on the actual mileage of the tested driving wheel and driven wheel, prevent slipping, and improve the stability of the actual use of the AGV drive system.

[0079] like Figure 2-4 As shown, the driven wheel assembly 3 further includes: a mounting plate 31 , a bearing seat 32 , a bearing seat mounting frame 33 , a magnetic powder brake mounting frame 34 , a liquid plate 35 , a guide rail 36 , a coupling 38 and a rotating shaft 39 .

[0080] The guide rail 36 is fixedly mounted on the workbench 1, and the direction of the guide rail 36 is defined as the X-axis. A slider is fixedly mounted on the lower end surface of the mounting plate 31, and the slider cooperates with the guide rail 36, so that the entire driven wheel assembly 3 can be moved along the X-axis of the guide rail 36 under the action of the force-applying assembly 2 to approach the driving wheel assembly 4.

[0081] During the test, the driven wheel 37 fits tightly with the driving wheel 45 in the driving wheel assembly 4 and is mounted on the rotating shaft 39 via the first flat key 311. The two ends of the rotating shaft 39 are respectively mounted in two bearing seats 32. Specifically, the two bearing seats 32 are respectively fixedly mounted on two bearing seat mounting frames 33, and the bearing seat mounting frames 33 are respectively fixedly set on the mounting plate 31. The magnetic powder brake 310 is mounted on the magnetic powder brake mounting frame 34, and the magnetic powder brake mounting frame 34 is fixedly set on the mounting plate 31. The shaft end of the magnetic powder brake 310 is connected to one end of the coupling 38 via the second flat key 312, and the other end of the coupling 38 is connected to the rotating shaft 39. When the driven wheel 37 rotates, it will drive the rotating shaft 39 to rotate together, and then drive the magnetic powder brake 310 to rotate through the coupling 38.

[0082] The liquid pan 35 is fixed to the mounting plate 31 and located directly below the driven wheel 37. A certain amount of liquid, such as water or oil, can be added to the pan 35 so that the driven wheel 37 adheres to the liquid during rotation, simulating the actual ground conditions, such as oil or water stains, that the driving wheel assembly would encounter, resulting in more realistic test results. Alternatively, this embodiment can also include the pan above the driven wheel and provide drip holes in the pan to allow liquid to seep out and drip onto the driven wheel. Alternatively, an external device can be used to spray the desired liquid directly onto the driven wheel.

[0083] The magnetic powder brake 310 is connected to the tension controller 7 via a cable. The operator can adjust the current within the tension controller 7 using the current knob to increase or decrease the braking torque of the magnetic powder brake 310. The current of the tension controller 7 is directly proportional to the braking torque of the magnetic powder brake 310, which is equal to the output torque of the motor in the driving wheel assembly. Therefore, when testing the stability of the driving wheel assembly 4, specifically the motor 43, the current of the tension controller 7 can be adjusted to ensure that the driving wheel assembly 4, and in particular the motor 43, is operating at full power.

[0084] Therefore, the comprehensive performance test bench of this embodiment can test the driving stability and service life of drive wheels with different patterns and shapes under special working conditions such as uneven ground and oil or water stains, and can also test the operating stability of the AGV drive system under uneven ground conditions.

[0085] like Figure 5 As shown, the driving wheel assembly also includes: a driving wheel bracket 41, a motor 43, and a reducer 44. Specifically, the driving wheel bracket 41 is fixedly mounted on the workbench 1, and the motor 43 and the driving wheel 45 are respectively connected to the ends of the reducer 44. The reducer 44 is fixed to the driving wheel bracket 41 via an adapter plate 42. The rotation of the motor 43 drives the reducer 44 to rotate, which in turn drives the driving wheel 45 to rotate. According to different test requirements, the operator can replace the adapter plate 42 with different sizes to accommodate the motor 43, reducer 44, and driving wheel 45 to be tested.

[0086] Every time the driving wheel 45 passes the driven wheel 37, it will cause wear and impact on the reducer 44 and the driving wheel 45. After a long period of uninterrupted testing, the service life of the reducer 44 and the driving wheel 45 and the specific manifestations of their failure can be measured, such as abnormal noise and abnormal heating of the reducer 44, or the degree of tread wear of the driving wheel 45, the shedding of the rubber layer of the driving wheel 45, etc.

[0087] Similarly, in this embodiment, the force-applying component 2 can be set on one side of the driving wheel component, and the guide rail and the slider can be fixed below the driving wheel bracket 41, so that the entire driving wheel component 4 can move along the X-axis where the guide rail is located under the action of the force-applying component 2 to be close to the driven wheel component 3.

[0088] Before specific part performance testing, different parts, including but not limited to driving wheels, motors or reducers, can be installed at the driving wheel 45, motor 43 or reducer 44 positions in the driving wheel assembly 4 as needed, and then performance testing can be performed.

[0089] The performance judgment criteria for the driving wheel, which is also the active wheel being tested, are as follows:

[0090] ① Lifespan: When the wear of the driving wheel reaches the standard, calculate the distance traveled by the driving wheel, that is, the product of the number of turns recorded by the driving wheel counter and the circumference of the wheel, and compare whether the distance meets the requirements of the rubber tire to determine the lifespan of the driving wheel.

[0091] ② Stability: A rubber tire is a perfect circle when it is not worn. If there is a large difference in the wear of different parts of the rubber tire, it is considered that the stability is poor. This embodiment can judge the stability through a pressure display connected to the force-applying component. Specifically, if the degree of wear of different parts of the rubber tire is different, that is, the stability is poor, then the pressure of the rubber tire should change within one rotation. Therefore, if the pressure of the rubber tire does not change much within one rotation, it proves that the pressure between the driving wheel and the driven wheel is basically stable, the degree of wear is basically the same, and the stability is high. Conversely, if the pressure of the rubber tire changes greatly within one rotation, it proves that the stability of the driving wheel is poor.

[0092] ③Safety: The damage of rubber tire can be judged by visual observation.

[0093] The performance judgment criteria of the reducer are as follows:

[0094] ① Stability: Observe whether the reducer vibrates after running for a period of time, or judge the sound made by the reducer based on the sound. If there is an abnormal sound inside the reducer, it indicates that there is an internal fault.

[0095] ② Lifespan: The lifespan of the reducer has factory-set parameters. Test the reducer for the corresponding time to see if it meets the requirements.

[0096] ③Safety: The same criteria as the stability of the driving wheels.

[0097] like Figure 6-8As shown, in the force-applying assembly 2 , the fixed structure includes a screw bracket 21 fixedly set on the workbench 1 , the rotating structure includes a screw 22 , and the telescopic pressurizing structure includes a spring 24 , a first spring sleeve 23 , a second spring sleeve 28 and a spring pressure plate 25 .

[0098] The screw support 21 is provided with a screw hole, and the screw 22 is threadedly connected to the screw support 21. The operator can manually rotate the screw 22 to move the screw 22 back and forth relative to the screw support 21. To enable the operator to better control the pressure between the driving wheel 45 and the driven wheel 37, this embodiment can also be provided with a handle 29 on the screw 22. By rotating the handle 29, the rotation of the screw 22 can be more easily controlled.

[0099] The spring 24 is located between the first spring sleeve 23 and the second spring sleeve 28 . Specifically, the first spring sleeve 23 is disposed on the screw rod 22 , and the second spring sleeve 28 is disposed on the spring pressure plate 25 .

[0100] A guide member 27 is fixedly provided on the spring pressure plate 25. The other end of the guide member 27 is passed through the vertical plate 313 on the driven wheel assembly 3 and can move relatively along the vertical plate 313 under the action of the screw 22. Figure 1 、 Figure 2 As shown, the vertical plate 313 is fixedly arranged on the mounting plate 31 and is perpendicular to 31. In addition, the vertical plate can also be arranged on the driving wheel assembly, specifically vertically and fixedly arranged on the driving wheel bracket 41, at this time, the force application component 2 can push the driving wheel assembly 4 to move.

[0101] A pressure sensor 26 is fixedly mounted on the vertical plate 313. The pressure sensor 26 is in communication with the pressure display 8. The pressure display 8 is used to display the pressure between the driven wheel 37 and the driving wheel 45, that is, the pressure exerted on the driving wheel of the AGV in the actual ground environment, and also the positive contact pressure between the driving wheel assembly 4 and the ground when the driving wheel assembly 4 is running without slipping. In actual AGV equipment, the gravity allocated to the driving wheel assembly 4 needs to be greater than or equal to the value displayed on the pressure display 8, so as to ensure that the overall weight of the AGV equipment is not too small to affect the normal use of the entire vehicle, nor that the AGV equipment is too heavy and wastes materials. When the screw 22 is rotated, the spring 24 is gradually compressed, driving the spring pressure plate 25 to apply pressure to the pressure sensor 26 and the driven wheel assembly 3, so that the driven wheel 37 and the driving wheel 45 are tightly fitted. There is no need to add or remove weights or counterweights to adjust the pressure, which can save the operator's time and reduce physical exertion. In addition, the pressure feedback is digitally output through the pressure display 8, and no additional time is required to manually calculate the positive pressure, saving time.

[0102] like Figure 9 As shown, the driven wheel detection assembly 5 includes a driven wheel counting display bracket 51 , a driven wheel detection piece 52 , and a driven wheel counting sensor 53 .

[0103] The driven wheel counting display bracket 51 is fixedly mounted on the bearing seat mounting bracket 33. The driven wheel counting sensor 53 is mounted on the driven wheel counting display bracket 51. The driven wheel detection piece 52 is mounted on the end face of the rotating shaft 39 and can rotate synchronously with the rotating shaft 39. The driven wheel counting sensor 53 is in communication with the driven wheel counting display 9 mounted on the workbench 1. Every time the driven wheel 37 rotates one revolution, the rotating shaft 39 drives the driven wheel detection piece 52 to rotate one revolution. Correspondingly, the driven wheel counting sensor 53 performs a detection, which is displayed and recorded on the driven wheel counting display 9.

[0104] like Figure 10 As shown, the driving wheel detection component 6 includes a driving wheel counting display bracket 61, a driving wheel detection piece 62, and a driving wheel counting sensor 63.

[0105] A driving wheel counter display bracket 61 is fixed to the workbench 1. A driving wheel counter sensor 63 is mounted on the driving wheel counter display bracket 61. A driving wheel detection plate 62 is mounted on the driving wheel 45 and rotates synchronously with the driving wheel 45. The driving wheel counter sensor 63 is in communication with the driving wheel counter display 10 mounted on the workbench 1. Each time the driving wheel 45 rotates one revolution, the driving wheel 45 drives the driving wheel detection plate 62 to rotate one revolution. Accordingly, the driving wheel counter sensor 63 performs a detection, which is displayed and recorded on the driving wheel counter display 10.

[0106] In addition, this embodiment can also determine whether the driving wheel 45 and the driven wheel 37 are slipping during the test by comparing the values ​​displayed on the driven wheel counting display 9 and the driving wheel counting display 10. When the values ​​displayed on the driven wheel counting display 9 and the driving wheel counting display 10 do not conform to a fixed ratio, such as the diameter ratio of the driving wheel and the driven wheel, this indicates that in addition to rolling motion, there is also slippage between the driven and driving wheels, indicating that the driving force generated by the spring 24 in the force-applying assembly 2 is not strong enough. In this case, it is necessary to rotate the screw 22 to push the driven wheel assembly 3 to further press the driving wheel assembly 4, thereby further increasing the contact positive pressure between the driven wheel 37 and the driving wheel 45. When the motor 43 outputs stably and the values ​​on the driven wheel counting display 9 and the driving wheel counting display 10 form a fixed ratio, it indicates that the driving wheel assembly 4 is moving stably.

[0107] The above embodiments are only used to explain the present invention and do not limit the scope of protection of the present invention. Those skilled in the art may make various deformations or modifications within the scope of the claims, which belong to the essence of the present invention.

Claims

1. An AGV drive system comprehensive performance test bench, characterized in that: It comprises a workbench (1), a force applying assembly (2), a driven wheel assembly (3), a driving wheel assembly (4), a driven wheel detection assembly (5), and a driving wheel detection assembly (6); The force-applying assembly (2), the driven wheel assembly (3), and the driving wheel assembly (4) are respectively arranged on the same plane of the workbench (1); The driving wheel assembly (4) is used to install the part to be tested; The driven wheel assembly (3) includes a driven wheel (37) and a brake connected to the driven wheel (37); the driving wheel assembly (4) includes a driving wheel (45); The force-applying component (2) comprises a fixed structure, a rotating structure, and a telescopic pressurizing structure; The fixed structure is fixedly arranged on the workbench (1); the rotating structure rotates relative to the fixed structure, thereby pushing the telescopic pressurizing structure to contract, and applying pressure to the driven wheel assembly (3) or the driving wheel assembly (4), so that the driven wheel (37) fits with the driving wheel (45), or the driving wheel (45) fits with the driven wheel (37); The driven wheel detection assembly (5) and the driving wheel detection assembly (6) are used to detect the number of revolutions of the driven wheel (37) and the driving wheel (45), respectively; The driven wheel detection component (5) and the driving wheel detection component (6) are respectively connected to a driven wheel counting display (9) and a driving wheel counting display (10) provided on the workbench (1); The rotating structure comprises a screw (22), the fixed structure comprises a screw bracket (21), and the screw bracket (21) is fixedly arranged on the workbench (1); the screw (22) is threadedly connected to a screw hole on the screw bracket (21); The telescopic pressurizing structure includes a spring (24) and a spring pressure plate (25); The spring (24) is located between a first spring sleeve (23) and a second spring sleeve (28), the first spring sleeve (23) is arranged on the screw rod (22), and the second spring sleeve (28) is arranged on the spring pressure plate (25); A guide member (27) is fixedly provided on the spring pressure plate (25), and the other end of the guide member (27) is passed through the driven wheel assembly (3) or the driving wheel assembly (4); A pressure sensor (26) is provided on the driven wheel assembly (3) or the driving wheel assembly (4); When the screw (22) is rotated, the spring (24) is compressed and drives the spring pressure plate (25) to apply pressure to the pressure sensor (26), the driven wheel assembly (3) and the driving wheel assembly (4), so that the driven wheel (37) fits with the driving wheel (45), or the driving wheel (45) fits with the driven wheel (37); a handle is also provided on the screw; The ratio of the values ​​displayed on the driven wheel counter display to the driving wheel counter display is used to determine whether the driving wheel and the driven wheel are slipping during operation; the number of revolutions of the driving wheel is also used to determine the life of the driving wheel; The driven wheel assembly (3) further comprises a liquid pan (35) disposed on the mounting plate (31), wherein the liquid pan (35) is filled with liquid so that the driven wheel (37) contacts the liquid during rotation; The pressure sensor (26) is in communication with a pressure display (8) provided on the workbench (1), and the pressure display (8) is used to display the pressure between the driven wheel (37) and the driving wheel (45); The driving wheel detection assembly (6) comprises a driving wheel counting display bracket (61), a driving wheel detection piece (62), and a driving wheel counting sensor (63); The driving wheel counting display bracket (61) is fixedly arranged on the workbench (1), the driving wheel counting sensor (63) is installed on the driving wheel counting display bracket (61), and the driving wheel detection piece (62) is arranged on the driving wheel (45) and can rotate synchronously with the driving wheel (45); The driving wheel counting display (10) is communicatively connected to the driving wheel counting sensor (63); Whenever the driving wheel (45) rotates one circle, the driving wheel (45) drives the driving wheel detection piece (62) to rotate one circle, the driving wheel counting sensor (63) performs a detection, and displays and records it on the driving wheel counting display (10).

2. The AGV drive system comprehensive performance test bench according to claim 1 is characterized in that: The driven wheel assembly (3) further includes a guide rail (36), a mounting plate (31), a rotating shaft (39), and a coupling (38); The guide rail (36) is fixedly arranged on the workbench (1); a slider is provided on the lower end surface of the mounting plate (31); the slider cooperates with the guide rail (36) and can move along the guide rail (36); The driven wheel (37) is mounted on the rotating shaft (39) via a first flat key (311); Both ends of the rotating shaft (39) are respectively mounted in the bearing seats (32), the bearing seats (32) are respectively fixedly mounted on the bearing seat mounting frames (33), and the bearing seat mounting frames (33) are respectively fixedly mounted on the mounting plate (31); The brake is a magnetic powder brake (310), the magnetic powder brake (310) is mounted on a magnetic powder brake mounting frame (34), and the magnetic powder brake mounting frame (34) is fixedly arranged on the mounting plate (31); The magnetic powder brake (310) is mounted on the coupling (38) via a second flat key (312), and the other end of the coupling (38) is connected to the rotating shaft (39).

3. The AGV drive system comprehensive performance test bench according to claim 1, characterized in that: The brake is connected to a tension controller (7) via a cable. The tension controller (7) is arranged on the workbench (1) and is used to adjust the braking torque of the brake.

4. The AGV drive system comprehensive performance test bench according to claim 1, characterized in that: The driving wheel assembly (4) further includes a driving wheel bracket (41), a motor (43) and a reducer (44); The motor (43) is connected to the reducer (44), and the reducer (44) is connected to the driving wheel (45); The driving wheel bracket (41) is fixedly arranged on the workbench (1), and the reducer (44) is fixedly arranged on the driving wheel bracket (41) via an adapter plate (42).

5. The AGV drive system comprehensive performance test bench according to claim 2, characterized in that: The driven wheel detection assembly (5) comprises a driven wheel counting display bracket (51), a driven wheel detection piece (52), and a driven wheel counting sensor (53); The driven wheel counting display bracket (51) is fixedly mounted on the bearing seat mounting bracket (33), the driven wheel counting sensor (53) is mounted on the driven wheel counting display bracket (51), and the driven wheel detection piece (52) is disposed on the rotating shaft (39) and is capable of rotating synchronously with the rotating shaft (39); The driven wheel counting display (9) is in communication connection with the driven wheel counting sensor (53); Whenever the driven wheel (37) rotates one circle, the rotating shaft (39) drives the driven wheel detection piece (52) to rotate one circle, and the driven wheel counting sensor (53) performs a detection, which is displayed and recorded on the driven wheel counting display (9).

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