An integrated test apparatus

Abstract

The present application relates to the technical field of robot performance test, and discloses a kind of comprehensive test device, comprising: detection table, including sequentially articulated slope table, transition table and bearing table;Rotation limiting structure is arranged between slope table and transition table to limit relative angle;Water tank is arranged below bearing table, and water tank opening size is greater than bearing table size;Frame is installed with lifting structure, lifting structure is connected with bearing table and drives bearing table to rise or drop.This device integrates climbing slope working condition simulation and wading working condition simulation, can complete different slope climbing test and immersion wading test, saves the disadvantages of large area occupied by multiple separate test tables and high cost of workpiece transfer, reduces the area occupied by test site, shortens the time consumption of robot cross-position transfer, and improves the efficiency of robot performance detection.

Description

Technical Field

[0001] This invention relates to the field of robot performance testing technology, and more specifically to a comprehensive testing device. Background Technology

[0002] As the application scenarios of mobile robots in inspection, logistics, and special operations continue to expand, multi-condition reliability verification is required during the product manufacturing and R&D stages. Climbing and wading are core test items for measuring the robot's terrain adaptability and overall sealing performance. According to current robot testing specifications, the slope for indoor commercial delivery robots is set at 3° to 15° for routine climbing tests, while special robots for mining and outdoor search and rescue need to be extended to extreme slope tests of 25° to 45°. Wading tests are divided into multiple water depth conditions according to the product's protection level requirements, simulating real-world use environments with accumulated water and low-lying areas to verify the walking drive and overall waterproof sealing capabilities.

[0003] Currently, the industry generally uses separate dedicated test benches for the slope climbing and water wading tests. The slope climbing ramp device and the water wading storage test tank are arranged separately and in different zones, and the entire testing facility occupies a large amount of laboratory space. The separate purchase and construction of various equipment results in high equipment investment costs. After the robot completes a single test, it needs to be manually transferred and repositioned before the next test can be carried out. The process is cumbersome and the overall testing efficiency of the machine is low. Summary of the Invention

[0004] The purpose of this invention is to provide a comprehensive testing device that integrates slope climbing simulation and water wading environment simulation functions, reduces equipment space and manufacturing costs, eliminates the need for robot cross-station transfer procedures, and improves the efficiency of integrated testing of multiple items in the whole machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A comprehensive testing device, comprising: The testing platform includes a slope platform, a transition platform, and a load-bearing platform that are articulated in sequence. A rotation limit structure is set between the slope platform and the transition platform to limit the relative angle; A water tank is installed below the support platform, and the size of the water tank opening is larger than the size of the support platform. The frame is equipped with a lifting structure, which is connected to the support platform and drives the support platform to rise or fall, thereby adjusting the slope platform between 15° and 45°.

[0006] In the above technical solution, the frame provides a reliable mounting base for the entire lifting structure. The water tank is located directly below the load-bearing platform, and its opening size is larger than the outline size of the load-bearing platform, allowing the load-bearing platform to be completely submerged in water for wading tests. The testing platform is assembled from a slope platform, a transition platform, and a load-bearing platform that are hinged in sequence, and each platform can rotate relative to the others. When conducting slope performance testing, the load-bearing platform is raised and lowered by the lifting structure, and the tilt angle of the slope platform and the transition platform is adjusted in conjunction. The slope platform and the transition platform are kept coplanar by a rotation limit structure. The robot can be started from either the slope platform or the transition platform to achieve uphill and downhill testing. When switching to the wading test mode, the lifting structure drives the load-bearing platform to move downwards and fall into the water tank. The load-bearing platform and the transition platform, and the transition platform and the slope platform rotate relative to each other in sequence. During the sinking process, the load-bearing platform drives the transition platform to fold into the water tank simultaneously. After adding test water to the water tank, the robot parked on the load-bearing platform enters the water along with the load-bearing platform. According to the preset wading depth, the vertical height of the load-bearing platform is adjusted by the lifting structure to control the degree of immersion of the robot and carry out the wading test.

[0007] Preferably, there are two slope platforms and two transition platforms, which are symmetrically arranged on both sides of the load-bearing platform.

[0008] Preferably, the rotation limiting structure includes limiting members fixed to the adjacent ends of the slope platform and the transition platform respectively, and when the two limiting members abut against each other, the slope platform and the transition platform are located in the same plane.

[0009] Preferably, rollers are rotatably installed on both sides of the end of the slope platform away from the transition platform, with the bottom end of the rollers protruding below the slope platform.

[0010] Preferably, the rollers and the track are in rolling cooperation, and the track is located on the outside of the slope platform.

[0011] Preferably, a wheel frame is fixedly mounted upward at the end of the water tank near the transition platform, and the wheel frame rotates to install the transition wheel, with the vertical projection of the transition wheel falling into the inside of the water tank opening.

[0012] Preferably, the lifting structure includes a lifting component and a driving component; the lifting component includes two lifting frames respectively disposed on both sides of the support platform and fixedly connected to the support platform; the driving component is installed on the frame, and the output end of the driving component is connected to the lifting component and drives the lifting component to rise or fall.

[0013] Preferably, a vertical guide rail is fixed on the inner side of the frame, and a guide shoe that slides with the guide rail is fixed at the end of the lifting frame.

[0014] Preferably, the driving component includes: The drive motor is fixed on the frame; Two drive shafts are arranged in parallel and are respectively mounted on both sides of the upper end of the frame through upper bearing seats. One drive shaft is fixed to the output end of the drive motor. The corresponding ends of the two drive shafts are fixed with drive sprockets. The two drive sprockets are connected by a drive chain. Each drive shaft is fixed with at least one drive sprocket. Cross braces, at least two of which are fixed to both sides of the frame, and each drive sprocket of the cross brace is equipped with a driven sprocket through a lower bearing seat. The corresponding drive sprocket and driven sprocket are connected by a drive chain. The fastener is fixedly connected to the lifting component and the drive chain.

[0015] Preferably, the frame is equipped with a limit switch. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the water tank structure; Figure 3 This is a schematic diagram of the slope platform, transition platform, and load-bearing platform during a 15° test. Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 3 Enlarged view of point B in the middle; Figure 6 This is a structural diagram of the load-bearing platform; Figure 7 for Figure 6 A structural diagram from another location; Figure 8 This is a structural diagram of the frame and the support platform; Figure 9 for Figure 8 A structural diagram from another location; Figure 10 This is a schematic diagram of the drive component. Figure 11 This is a schematic diagram of the structure during the 45° test of the present invention; Figure 12 This is a schematic diagram of the structure during the water immersion test of the present invention; Figure 13 for Figure 12 Partial schematic diagram; Figure 14 for Figure 12 Schematic diagram of medium-slope platform, transition platform and load-bearing platform; Figure 15 for Figure 14 Enlarged diagram of point C in the middle.

[0017] Among them, the slope platform 1, transition platform 2, load-bearing platform 3, water tank 4, frame 5, limiting component 6, roller 7, track 8, wheel frame 9, transition wheel 10, lifting component 11, guide rail 12, guide shoe 13, drive motor 14, transmission shaft 15, upper bearing seat 16, transmission sprocket 17, transmission chain 18, drive sprocket 19, cross brace 20, lower bearing seat 21, driven sprocket 22, drive chain 23, fixing component 24, and limit switch 25. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] like Figure 1-15 A comprehensive testing device, comprising: The testing platform includes a slope platform 1, a transition platform 2, and a load-bearing platform 3 that are articulated in sequence. A rotation limiting structure is set between the slope platform 1 and the transition platform 2 to limit the relative angle; Water tank 4 is located below the support platform 3 and the size of the opening of water tank 4 is larger than the size of the support platform 3; The frame 5 is equipped with a lifting structure, which is connected to the support platform 3 and drives the support platform 3 to rise or fall, thereby adjusting the slope platform 1 between 15° and 45°.

[0020] In the above technical solution, the frame 5 provides a reliable mounting base for the entire lifting structure. The water tank 4 is located directly below the support platform 3, and its opening size is larger than the outline size of the support platform 3, allowing the support platform 3 to be completely submerged in water for wading tests. The testing platform is assembled from the slope platform 1, transition platform 2, and support platform 3, which are hinged in sequence, and each platform can rotate relative to the others. When conducting slope performance testing, the support platform 3 is raised and lowered by relying on the lifting structure, and the tilt angle of the slope platform 1 and the transition platform 2 is adjusted in conjunction. The slope platform 1 and the transition platform 2 are kept coplanar by the rotation limit structure. The robot can be started by the slope platform 1 or the transition platform 2 to realize uphill and downhill testing. When switching to the wading test mode, the lifting structure drives the support platform 3 to move downwards and fall into the water tank 4. The support platform 3 and the transition platform 2, and the transition platform 2 and the slope platform 1 rotate relative to each other in sequence. During the sinking process, the support platform 3 drives the transition platform 2 to fold synchronously into the water tank 4. After adding test water to the water tank 4, the robot, which is parked on the support platform 3, enters the water along with the support platform 3. According to the preset wading depth, the vertical height of the support platform 3 is adjusted by the lifting structure to control the degree of robot immersion and conduct wading tests. The frame 5 and the water tank 4 can be locked to the ground or other test locations.

[0021] It should be noted that this device can also be extended to realize robot rollover testing. When conducting a rollover test, the tilt angle of the ramp platform 1 is adjusted by using the lifting mechanism. The robot under test travels along the platform surface of the ramp platform 1 in the direction of travel that is tilted to the ramp platform 1, and the whole robot rollover test can be performed. The ramp platform 1 and the transition platform 2 are in the same plane. The direction of travel of the ramp platform 1 can be the same as the tilt direction of the transition platform 2, the opposite direction to the tilt direction of the transition platform 2, or the robot can travel laterally across the ramp platform 1.

[0022] It should also be noted that the load-bearing platform 3 has water passage holes. In actual production, the load-bearing platform 3 can be made of grating plates or perforated plates. In order to improve the strength, a reinforcing frame is installed under the plate. The reinforcing frame can be bolted or welded to the plate. The reinforcing frame is made of metal materials such as steel.

[0023] In the slope platform 1, transition platform 2, and load-bearing platform 3, the corresponding ends of any two are rotatably connected by a rotating shaft. For example, two outer ear plates are fixed on both sides of both ends of the transition platform 2, and the two opposing outer ear plates are rotatably connected by a connecting shaft. Two inner ear plates are fixed on both sides of the ends of the slope platform 1 and the load-bearing platform 3. The inner ear plates are staggered with the outer ear plates, and the two inner ear plates are rotatably connected to the rotating shaft through a bearing seat. In order to improve the connection strength, several spaced reinforcing plates are fixed at the ends of the slope platform 1, the two ends of the transition platform 2, and the end of the load-bearing platform 3. The reinforcing plates are rotatably engaged with the rotating shaft. The reinforcing plates at the ends of the slope platform 1, the two ends of the transition platform 2, and the end of the load-bearing platform 3 are staggered to avoid interference.

[0024] This embodiment provides examples of 15° and 45° slopes. Other slopes can be adjusted by lifting the lifting structure to raise and lower the load-bearing platform 3.

[0025] Furthermore, there are two slope platforms 1 and two transition platforms 2, which are symmetrically arranged on both sides of the load-bearing platform 3. The symmetrical arrangement on both sides can balance the platform load, improve the overall structural stability, and also allow the robots to be tested to be placed at the left and right workstations respectively, so as to carry out slope performance tests of two sets of products simultaneously, effectively improving the single-test efficiency of the equipment.

[0026] Furthermore, the rotation limiting structure includes limiting members 6 fixed to the adjacent ends of the slope platform 1 and the transition platform 2 respectively. When the two limiting members 6 abut against each other, the slope platform 1 and the transition platform 2 are located in the same plane. During the slope performance test, the rotation limiting structure can restrain the downward collapse deformation of the hinge end, and the relative position of the two platforms is stabilized by the abutment support of the limiting members 6.

[0027] The limiting component 6 can be implemented in several ways. The first method uses two obliquely arranged limiting rods; after the slope platform 1 is leveled, the ends of the two limiting rods abut against each other, locking the slope platform 1 and the transition platform 2 into a flush state. The second method uses limiting rods arranged perpendicular to the corresponding platform body, with limiting blocks fitted to the ends of one or both limiting rods. The limiting blocks' end faces abut against each other to achieve platform limiting. Alternatively, ball-head bolts can be fitted to the limiting blocks, relying on the ball-head end faces for contact limiting. To enhance the load-bearing capacity of the limiting component 6 itself, diagonal bracing structures are added between the limiting component 6 and the corresponding slope platform 1 and transition platform 2 to strengthen the connection strength and bending resistance.

[0028] Furthermore, rollers 7 are rotatably mounted on both sides of the end of the slope platform 1 away from the transition platform 2, with the bottom of the rollers 7 protruding below the slope platform 1. During the adjustment of the angle of the slope platform 1, the rollers 7 support the outer end of the slope platform 1, changing sliding friction to rolling friction, reducing the friction of the slope platform 1, and extending the service life of the slope platform 1.

[0029] Furthermore, the roller 7 rolls in conjunction with the track 8, which is located on the outside of the slope platform 1. The track 8 can be fixed to the ground or other test locations. The roller 7 and the track 8 form a rolling engagement, so that during the process of raising the slope platform 1 to change the test inclination angle, conducting different slope tests, or water wading tests, the roller 7 rolls along the trajectory defined by the track 8, constraining the end of the slope platform 1 from lateral deviation or tilting.

[0030] Furthermore, a wheel frame 9 is fixedly mounted upwards at the end of the water tank 4 near the transition platform 2. The wheel frame 9 rotates to mount the transition wheel 10, and the vertical projection of the transition wheel 10 falls into the inner side of the opening of the water tank 4. The vertical projection of the transition wheel 10 is within the range of the opening of the water tank 4. When the support platform 3 sinks into the water, it causes the transition platform 2 to rotate with the hinge point. The transition wheel 10 forms a rolling support for the swinging transition platform 2, preventing the transition platform 2 from being suspended and deformed. At the same time, it fills the gap between the transition platform 2 and the edge of the water tank 4, ensuring that the robot smoothly moves from the transition platform 2 into the support platform 3.

[0031] It should be noted that two transition wheels 10 are installed at the ends of the water tank 4 corresponding to the transition platform 2, and are set on both sides of the transition platform 2.

[0032] Furthermore, the lifting structure includes a lifting component 11 and a driving component; the lifting component 11 includes two lifting frames respectively disposed on both sides of the support platform 3 and fixedly connected to the support platform 3; the driving component is installed on the frame 5, and the output end of the driving component is connected to the lifting component 11 and drives the lifting component 11 to rise or fall. The driving component synchronously drives the lifting frames on both sides to rise and fall, and the lifting frames on both sides evenly pull the support platform 3 to rise and fall.

[0033] Furthermore, a vertical guide rail 12 is fixed to the inner side of the frame 5, and a guide shoe 13 that slides with the guide rail 12 is fixed to the end of the lifting frame. When the drive unit pulls the lifting frame and the support platform 3 to rise and fall, the guide shoe 13 slides vertically along the guide rail 12, limiting the lateral displacement of the lifting frame and improving the stability of the lifting.

[0034] Furthermore, the driving component includes: The drive motor 14 is fixed on the frame 5; Two drive shafts 15 are arranged in parallel and are respectively mounted on both sides of the upper end of the frame 5 through the upper bearing seat 16. One drive shaft 15 is fixed to the output end of the drive motor 14. The corresponding ends of the two drive shafts 15 are fixed with drive sprockets 17. The two drive sprockets 17 are connected by a drive chain 18. Each drive shaft 15 is fixed with at least one drive sprocket 19. The cross brace 20 is provided with at least two and fixed on both sides of the frame 5. Each drive sprocket 19 of the cross brace 20 is equipped with a driven sprocket 22 through the lower bearing seat 21. The corresponding drive sprocket 19 and driven sprocket 22 are connected by a drive chain 23. The fixing member 24 is fixedly connected to the lifting member 11 and the drive chain 23.

[0035] In the above technical solution, the drive motor 14 is fixed to the frame 5. The motor achieves synchronous operation of the two drive shafts 15 through the drive shaft 15, the drive sprocket 17 and the drive chain 18. The drive sprocket 19 on the drive shaft 15 is linked to the driven sprocket 22 at the cross brace 20 by the drive chain 23. The drive chain 23 is connected to the lifting frame through the fixing member 24. When the drive motor 14 is activated, the lifting frame is driven to rise and fall through the drive shaft 15 and the sprocket chain structure.

[0036] It should be noted that each drive shaft 15 is fixedly equipped with two drive sprockets 19, which can simultaneously match two sets of drive chains 23 and driven sprockets 22, and synchronously pull the lifting frame up and down on both sides, so that the load-bearing platform 3 is subjected to more even force and the lifting operation is more stable. The fixing component 24 includes a fixing plate, which is fastened to the lifting frame. An inner clamping plate is installed on the fixing plate by bolts. The inner clamping plate and the outer clamping plate cooperate to clamp the drive chain 23. The inner clamping plate and the outer clamping plate are locked together by bolts.

[0037] Furthermore, the frame 5 is equipped with limit switches 25. Limit switches 25 are roller-rocker type limit switches. At least two limit switches 25 are provided, with one corresponding to a 15° standard slope test position and the other to a 45° extreme slope test position. The limit switches 25 are used to detect the position of the support platform 3, achieving angle limiting. Alternatively, a limit switch 25 can be added to detect the lowest position. Limit switches 25 can also be photoelectric switches, etc. To facilitate cooperation with the limit switches 25, a detection baffle can be installed on the lifting component to work in conjunction with the limit switches 25. When the detection baffle touches the limit switch 25, the corresponding support platform 3 reaches the preset angle position.

[0038] This device is also equipped with a controller, which is installed on the frame 5. The controller uses a conventional programmable control module and is electrically connected to the drive motor 14 and the roller rocker-type limit switch. It uses the angle positioning signal fed back by the limit switch 25 to control the start and stop of the drive motor 14, thereby precisely controlling the tilt angle adjustment of the ramp platform 1 and the lifting and lowering of the load-bearing platform 3. The controller and its electrical control circuit are all existing mature technologies and will not be described in detail here. The drive motor 14 can be either a geared motor or a servo motor. When a geared motor is used, the output torque can be increased by the reducer, smoothly driving the sprocket and chain transmission mechanism to achieve the lifting and lowering of the load-bearing platform 3 and the angle adjustment of the ramp platform 1. When a servo motor is used, the output speed and start / stop position can be precisely controlled by the electronic control system. Both types of motors are commercially available and mature drive components.

[0039] The testing procedure for this device is as follows: 1. Robot 15° Climbing Test: Raise the slope platform 1 to 15°, and the load-bearing platform 3 touches the corresponding roller swing arm type limit switch to complete the angle positioning. The limit parts 6 abut against each other to lock the slope surface. The robot starts from the slope platform 1, passes through the transition platform 2 in sequence, and arrives at the load-bearing platform 3. If there is no slippage, jamming, or insufficient power throughout the process, the climbing performance is judged to be qualified. 2. Robot 45° extreme slope test: Raise the slope platform from 1 to 45° extreme inclination angle, and trigger the limit switch 25 to lock the limit. If the robot can move along the slope under full load and can smoothly climb to the top without slipping, overturning, or power overload, the extreme slope performance is qualified. 3. Downhill performance test: Keep the slope platform 1 fixed at the preset downhill inclination angle, and lock the slope structure with the limit piece 6. The robot under test starts from the load-bearing platform 3 at a high position and drives down the slope platform 1 at a constant speed along the transition platform 2. If there is no brake failure, overspeed dive, or wheel slippage and loss of control during the process, the downhill braking and driving stability are qualified. 4. Integrated slope climbing and water wading continuous testing: The slope platform 1 is pre-adjusted to the test set slope. The robot completes the slope climbing and stops at the position of the load-bearing platform 3. Without moving the prototype, the drive mechanism is started, and the lifting frame slides down along the vertical guide rail 12. The load-bearing platform 3 and the transition platform 2 sink into the water tank 4 after being filled with water. The prototype is immersed in water to the specified depth and left to stand. If there is no water ingress, short circuit, or leakage in the whole machine, the waterproof sealing performance is qualified. After the test is completed, the lifting structure raises the platform and removes it from the water surface. 5. Robot rollover performance test: Adjust the slope platform 1 and the transition platform 2 to the test set tilt angle using the lifting mechanism, and control the robot to travel in a direction perpendicular to the slope to the surface of the slope platform 1. If the robot body remains stable and does not roll over laterally during the continuous movement, the rollover protection performance is deemed qualified. If the robot body rolls over, the rollover test is deemed unqualified.

[0040] Finally, it should be noted that in the description of this invention, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0041] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A comprehensive testing device, characterized in that, include: The testing platform includes a slope platform (1), a transition platform (2), and a load-bearing platform (3) that are hinged in sequence. A rotation limiting structure is set between the slope platform (1) and the transition platform (2) to limit the relative angle; A water tank (4) is set below the support platform (3) and the size of the opening of the water tank (4) is larger than the size of the support platform (3); The frame (5) is equipped with a lifting structure. The lifting structure is connected to the load-bearing platform (3) and drives the load-bearing platform (3) to rise or fall, thereby driving the slope platform (1) to adjust between 15° and 45°.

2. The comprehensive testing device according to claim 1, characterized in that, Two slope platforms (1) and two transition platforms (2) are provided, and the two slope platforms (1) and two transition platforms (2) are symmetrically arranged on both sides of the load-bearing platform (3).

3. The comprehensive testing device according to claim 1 or 2, characterized in that, The rotation limiting structure includes limiting members (6) fixed to the adjacent ends of the slope platform (1) and the transition platform (2) respectively. When the two limiting members (6) abut against each other, the slope platform (1) and the transition platform (2) are located in the same plane.

4. The comprehensive testing apparatus according to claim 1 or 2, characterized in that, Rollers (7) are rotatably installed on both sides of the end of the slope platform (1) away from the transition platform (2), with the bottom of the rollers (7) protruding below the slope platform (1).

5. The comprehensive testing device according to claim 4, characterized in that, The roller (7) and the track (8) roll together, and the track (8) is located on the outside of the slope platform (1).

6. The comprehensive testing apparatus according to claim 1, 2, or 5, characterized in that, A wheel frame (9) is fixed upward at the end of the water tank (4) near the transition platform (2). The wheel frame (9) rotates to install the transition wheel (10). The vertical projection of the transition wheel (10) falls into the inside of the opening of the water tank (4).

7. The comprehensive testing apparatus according to claim 5, characterized in that, The lifting structure includes a lifting component (11) and a driving component; The lifting component (11) includes two lifting frames respectively disposed on both sides of the load-bearing platform (3) and fixedly connected to the load-bearing platform (3); The drive unit is mounted on the frame (5), and the output end of the drive unit is connected to the lifting unit (11) and drives the lifting unit (11) to rise or fall.

8. The comprehensive testing apparatus according to claim 7, characterized in that, A vertical guide rail (12) is fixed on the inner side of the frame (5), and a guide shoe (13) that slides with the guide rail (12) is fixed at the end of the lifting frame.

9. The comprehensive testing device according to claim 7, characterized in that the driving component... include: The drive motor (14) is fixed on the frame (5); Two drive shafts (15) are arranged in parallel and are respectively mounted on both sides of the upper end of the frame (5) through the upper bearing seat (16). One of the drive shafts (15) is fixed to the output end of the drive motor (14). The corresponding ends of the two drive shafts (15) are fixed with drive sprockets (17). The two drive sprockets (17) are connected by a drive chain (18). Each drive shaft (15) is fixed with at least one drive sprocket (19). The cross brace (20) is provided with at least two and fixed on both sides of the frame (5). The cross brace (20) is equipped with a driven sprocket (22) for each drive sprocket (19) through the lower bearing seat (21). The corresponding drive sprocket (19) and driven sprocket (22) are connected by a drive chain (23). The fastener (24) is fixedly connected to the lifting member (11) and the drive chain (23).

10. The comprehensive testing apparatus according to claim 1, 2, 5, 8 or 9, characterized in that, The frame (5) is equipped with a limit switch (25).

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