A vertical testing device and testing method thereof

Abstract

The present invention relates to a vertical testing device and a testing method thereof, comprising a test structure, a first drive structure, a first transmission structure, and a test frame, wherein the test structure, drive structure, and transmission structure are all disposed on the test frame, the drive structure being connected to a portion of the transmission structure, the other portion of the transmission structure being in transmission connection with the test structure, the first drive structure transmitting a kinematic pair to the test structure via the first transmission structure to implement a rotational testing process of the test structure. By providing a second drive structure and a second transmission structure, the second drive structure transmits the kinematic pair to the test structure via the second transmission structure and the first transmission structure, and obtains test data via various sensor elements to implement a testing process of the test structure.

Description

Technical Field

[0001] The present invention relates to the technical field of screw pumps, and in particular to a vertical testing device and a testing method thereof. Background Art

[0002] In downhole screw pump applications, maintaining a uniform distribution of the sucker rod string in horizontal wells is crucial. Traditional oil production systems generally use linear screw pumps. The design of this linear screw pump ensures a relatively fixed fit between the stator and rotor during installation, and the clearance typically does not require adjustment. However, with traditional linear screw pump configurations, the load on the sucker rod is often uneven, causing non-uniform buckling of the rod string and further leading to lateral load issues. Uneven load distribution not only reduces pumping efficiency but can also cause mechanical damage and shorten the life of the equipment. By designing a positioner, the uniform distribution of the sucker rod string can be controlled, and by designing a bearing housing, the transmission and load-bearing functions can be combined to provide higher operating efficiency and stability.

[0003] However, during the design and manufacturing process of positioners and bearing housings, it is necessary to test their performance requirements, such as temperature, deformation, and vibration. However, there is no dedicated testing device for positioners and bearing housings on the market. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a vertical testing device and a testing method thereof to solve one or more problems in the prior art.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] A vertical testing device includes a testing structure, a first driving structure, a first transmission structure and a testing frame, wherein the testing structure, the driving structure and the transmission structure are all arranged on the testing frame, the driving structure is connected to a part of the transmission structure, and the other part of the transmission structure is connected to the testing structure in a transmission manner, and the first driving structure transmits the motion pair to the testing structure through the first transmission structure to realize the rotation testing process of the testing structure.

[0007] Furthermore, the test frame is composed of a frame body, a first support plate, a second support plate and a base frame. The first support plate is arranged on the first part of the frame body, the second support plate is arranged on the second part of the frame body, and the base frame is arranged at the bottom of the second support plate. A second fixing plate is also arranged on the first support plate, and the second fixing plate is fixed to the first support plate by fasteners.

[0008] Furthermore, the first driving structure includes a first fixing plate, the first fixing plate is fixedly connected to the second supporting plate, the driving motor is fixedly connected to the first fixing plate, the output end of the driving motor has a shaft sleeve, and the outside of the shaft sleeve has a first gear.

[0009] Furthermore, the first transmission structure includes a transmission shaft, the transmission shaft has a second gear outside, the second gear is engaged with the first gear, the transmission structure also includes a protective cover, the protective cover is arranged on the side of the second support plate close to the first fixed plate, the first gear, transmission shaft and second gear are all arranged in the protective cover, the transmission shaft also has a first bearing and a retaining spring outside, and the retaining spring is located at the bottom of the first bearing.

[0010] Furthermore, the vertical testing device also includes a second drive structure and a second transmission structure, the second drive structure is connected to a part of the second transmission structure, and the other part of the second transmission structure is connected to the first transmission structure. The second drive structure includes a hydraulic jack, and the hydraulic jack is arranged on the base frame through a fixed seat. The second transmission structure includes a connecting member, and the output end of the hydraulic jack is transmission-connected to a part of the connecting member, and the other part of the connecting member is transmission-connected to the transmission shaft. The connecting member also has a fixing member and a second bearing, and the fixing member is located below the second bearing. The second drive structure transmits the moving pair to the test structure through the second transmission structure and the first transmission structure to realize the load testing process of the test structure.

[0011] Furthermore, the vertical testing device also includes a detection element, which includes a first sensor, an inductor, a second sensor and a display. The first sensor is arranged on the first support plate, the inductor is arranged on the test structure, the second sensor is arranged on the fixing part, and the display is arranged on the base frame.

[0012] Furthermore, the second fixing plate is provided with a plurality of first holes and a plurality of second holes, and the diameter of the first holes is larger than that of the second holes.

[0013] Furthermore, the test structure includes a position controller and a screw rod, the screw rod is arranged in the position controller, and a fixed end cover is also provided on the first support plate. The screw rod is fixed to the fixed end cover through a first joint, the position controller is connected to the transmission shaft through a second joint, and the sensor is arranged in the position controller.

[0014] Furthermore, the test structure includes a bearing box having a core shaft therein, the sensor is arranged in the bearing box, one end of the core shaft is fixed to the second fixed plate, and the other end of the core shaft is connected to the transmission shaft.

[0015] A testing method for a vertical testing device, the method being applied to a vertical testing device, comprises the following steps:

[0016] Install the test structure in the test frame;

[0017] Apply rotation and load to the test structure, and adjust the speed and load size for testing;

[0018] Observe the state of the test structure during the test process.

[0019] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0020] (1) The present invention sets the test structure in the test frame by providing a test structure, a first drive structure, a first transmission structure, a test frame and a test element. The first drive structure transmits the motion pair to the test structure through the first transmission structure, and realizes the rotation test process of the test structure by reading the test element data.

[0021] (2) The present invention sets a second drive structure and a second transmission structure. The second drive structure transmits the motion pair to the test structure through the second transmission structure and the first transmission structure, and obtains test data through each sensor element to realize the test process of the test structure.

[0022] (3) Furthermore, the present invention drives the first gear to rotate through a driving motor, transmits the force to the second gear, then transmits it to the transmission shaft through the second gear, and finally transmits it to the test structure, thereby realizing a simulation test of the test structure's rotation process. After receiving the pump body drive jacking through the hydraulic jack, the force is transmitted to the connecting member, then transmitted to the fixing member through the connecting member, then transmitted to the second bearing, further transmitted to the transmission shaft, and finally transmitted to the test structure, thereby realizing a simulation test of the test structure's load-bearing process.

[0023] (IV) Furthermore, the present invention provides a first bearing for straightening the transmission shaft, and provides a second bearing for carrying a certain load to prevent the rotation of the transmission shaft from causing the connecting member to rotate under the action of friction, thereby ensuring the stability and accuracy of the test process.

[0024] (5) Furthermore, the present invention provides a fixed end cap, to which the screw is fixed via a first joint, to prevent upward displacement of the components within the position controller and prevent the position controller from falling out of the top. A second fixing plate is provided, to which one end of the mandrel is fixed, to ensure that the position of the bearing box remains stable during testing, thereby preventing axial displacement and preventing the bearing box from falling out of the top, further ensuring the stability and accuracy of the testing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1A first schematic structural diagram of a vertical testing device and a testing method thereof according to an embodiment of the present invention is shown.

[0026] Figure 2 A structural cross-sectional view of a vertical testing device and a testing method thereof according to an embodiment of the present invention is shown.

[0027] Figure 3 A second schematic structural diagram of a vertical testing device and a testing method thereof according to an embodiment of the present invention is shown.

[0028] Figure 4 A third schematic structural diagram of a vertical testing device and a testing method thereof according to an embodiment of the present invention is shown.

[0029] Figure 5 A partial structure enlarged view of a vertical testing device and a testing method thereof according to an embodiment of the present invention is shown.

[0030] Figure 6 A first schematic structural diagram of a vertical testing device and a testing method thereof according to a second embodiment of the present invention is shown.

[0031] Figure 7 A structural cross-sectional view of a vertical testing device and a testing method thereof according to a second embodiment of the present invention is shown.

[0032] Figure 8 A second schematic structural diagram of a vertical testing device and a testing method thereof according to a second embodiment of the present invention is shown.

[0033] 1. Test structure; 100. Position controller; 101. Screw; 102. First joint; 103. Second joint; 104. Bearing box; 105. Mandrel; 2. First drive structure; 200. Drive motor; 201. Bushing; 202. First fixing plate; 203. First gear; 3. First transmission structure; 300. Second gear; 301. Transmission shaft; 302. Protective cover; 303. First bearing; 304. Circlip; 305. Bearing sleeve; 4. Test frame; 400 , frame body; 401, first support plate; 402, second support plate; 403, second fixed plate; 4030, first hole; 4031, second hole; 404, fastener; 405, base frame; 406, fixed end cover; 5, detection element; 500, first sensor; 501, sensor; 502, second sensor; 503, display; 6, second drive structure; 600, hydraulic jack; 601, oil pipe; 602, fixed seat; 7, connector; 8, fixing part; 9, second bearing. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention clearer, a vertical testing device and a testing method thereof proposed by the present invention are further described in detail below in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the drawings are in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, please refer to the drawings. It should be noted that the structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no technical substantive significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0035] Example 1

[0036] The specific structure of a vertical testing device in this embodiment is described below:

[0037] A vertical test device, please refer to Figure 1 , comprising a test structure 1, a first drive structure 2, a first transmission structure 3, and a test frame 4. The test structure 1, drive structure 2, and transmission structure 3 are all arranged on the test frame 4. The drive structure 2 is connected to a portion of the transmission structure 3, and the other portion of the transmission structure 3 is transmission-connected to the test structure 1. The first drive structure 2 transmits the kinematic pair to the test structure 1 through the first transmission structure 3 to implement a rotation test process of the test structure 1. Furthermore, in this embodiment, by simulating the working state of the position controller 100, the load-bearing condition of the position controller 100 during operation, as well as the deformation, temperature, and vibration of related structures during operation, are tested.

[0038] For further information, please refer to Figure 2 The test frame 4 is composed of a frame body 400, a first support plate 401, a second support plate 402 and a base frame 405. The first support plate 401 is arranged on the first part of the frame body 400, the second support plate 402 is arranged on the second part of the frame body 400, and the base frame 405 is arranged at the bottom of the second support plate 402. A second fixing plate 403 is also arranged on the first support plate 401, and the second fixing plate 403 is fixed to the first support plate 401 by fasteners 404. Preferably, in the present invention, the fasteners 404 are bolts.

[0039] Furthermore, the drive structure 2 includes a first fixed plate 202, the first fixed plate 202 is fixedly connected to the second support plate 402, the drive motor 200 is fixedly connected to the first fixed plate 202, the output end of the drive motor 200 has a shaft sleeve 201, and the shaft sleeve 201 has a first gear 203 outside. The output shaft of the drive motor 200 is connected to the first gear 203 through the shaft sleeve 201, driving the first gear 203 to rotate, and further causing the second gear 300 to rotate. Preferably, in the present invention, the first gear 203 is a driving gear and the second gear 300 is a driven gear.

[0040] For further information, please refer to Figure 5 The transmission structure 3 includes a transmission shaft 301, a second gear 300 is provided outside the transmission shaft 301, and the transmission shaft 301 and the second gear 300 are connected by bolts, and the second gear 300 is engaged with the first gear 203. The transmission structure 3 also includes a protective cover 302, which is arranged on the side of the second support plate 402 close to the first fixed plate 202. The first gear 203, the transmission shaft 301 and the second gear 300 are all arranged in the protective cover 302. The transmission shaft 301 also has a first bearing 303 outside. And a retaining spring 304, the retaining spring 304 is located at the bottom of the first bearing 303. Specifically, in this embodiment, the first bearing 303 is a straightening bearing, which is used to straighten the transmission shaft 301, and the number of first bearings 303 is two. A bearing sleeve 305 is also arranged between the two first bearings 303. The retaining spring 304 is arranged on the transmission shaft 301 below the first bearing 303 in the lower position. The first bearing 303 in the upper position is positioned by the shoulder of the transmission shaft 301, and the first bearing 303 in the lower position is positioned by the retaining spring 304 on the transmission shaft 301.

[0041] Furthermore, the vertical testing device also includes a second drive structure 6 and a second transmission structure, the second drive structure 6 is connected to a part of the second transmission structure, the other part of the second transmission structure is connected to the first transmission structure 3, the second drive structure 6 includes a hydraulic jack 600, the hydraulic jack 600 is set on the base frame 405 through a fixed seat 602, specifically, the fixed seat 602 is fixed to the base frame 405 by bolts, the hydraulic jack 600 can be easily loaded and unloaded from the fixed seat 602, and the input end of the hydraulic jack 600 is connected to the pump body through the oil pipe 601, so that the hydraulic jack 600 works, the second drive structure 6 includes a hydraulic jack 600, and the hydraulic jack 600 is set on the base frame 405 through a fixed seat 602. Specifically, the fixed seat 602 is fixed to the base frame 405 by bolts, and the hydraulic jack 600 can be easily loaded and unloaded from the fixed seat 602, and the input end of the hydraulic jack 600 is connected to the pump body through the oil pipe 601, so that the hydraulic jack 600 works. The second transmission structure includes a connecting member 7, the output end of the hydraulic jack 600 is transmission-connected to a part of the connecting member 7, and the other part of the connecting member 7 is transmission-connected to the transmission shaft 301. The connecting member 7 is also provided with a fixing member 8 and a second bearing 9. The fixing member 8 is located below the second bearing 9. Specifically, in this embodiment, the second bearing 9 is a load-bearing bearing to carry a certain load to prevent the rotation of the transmission shaft 301 from driving the connecting member 7 to rotate under the action of friction. The second driving structure 6 transmits the motion pair to the test structure 1 through the second transmission structure and the first transmission structure 3 to realize the load testing process of the test structure 1.

[0042] For further information, please refer to Figure 4 The vertical testing device also includes a detection element 5, which includes a first sensor 500, an inductor 501, a second sensor 502 and a display 503. The first sensor 500 is arranged on the first support plate 401, the inductor 501 is arranged on the test structure 1, the second sensor 502 is arranged on the fixing part 8, and the display 503 is arranged on the base frame 405. Preferably, in the present invention, the first sensor 500 is integrated with a vibration sensor, the inductor 501 is integrated with a temperature sensing strain gauge, and the second sensor 502 is integrated with a pressure sensor. The test system of the first sensor 500, the inductor 501 and the second sensor 502 is integrated in the display 503. After being connected by cables, the pressure, temperature and vibration conditions currently borne by the test structure 1 will be displayed in real time on the display 503 during the test.

[0043] For further information, please refer to Figure 3The second fixing plate 403 is provided with a plurality of first holes 4030 and a plurality of second holes 4031, and the diameter of the first holes 4030 is larger than that of the second holes 4031. Specifically, in the present invention, the first holes 4030 and the second holes 4031 are both through holes, and are the same in number and corresponding in position, that is, each first hole 4030 has a second hole 4031 on one side, the first hole 4030 is used to facilitate loading and unloading, and the second hole 4031 is used to lock the fastener 404. Before testing, the fastener 404 can be placed on the first supporting plate 401. After the test structure 1 is placed, the first hole 4030 of the second fixing plate 403 is aligned with the fastener 404, the second fixing plate 403 is rotated, the fastener 404 is inserted into the second hole 4031, and then the fastener 404 is locked, and the quick connection can be conveniently realized to achieve alignment and locking.

[0044] For further information, please refer to Figure 2 The test structure 1 includes a position controller 100 and a screw rod 101. Specifically, the position controller 100 is used to control the uniform distribution of the sucker rod string, which can effectively reduce the lateral load caused by the non-uniform buckling of the sucker rod, thereby avoiding mechanical damage caused by transitional bending. The screw rod 101 is arranged in the position controller 100. A fixed end cover 406 is also provided on the first support plate 401. The screw rod 101 is fixed to the fixed end cover 406 through a first joint 102. Specifically, the upper surface of the first joint 102 is in contact with the fixed end cover 406. 06, and the two are locked by bolts to fix the upward displacement of the internal components of the position controller 100 and prevent the position controller 100 from falling out from the top. The position controller 100 is connected to the transmission shaft 301 through the second joint 103. The sensor 501 is set on the position controller 100. Specifically, the second joint 103 is set at the bottom of the position controller 100. Under the action of friction and applied load between the transmission shaft 301 and the second joint 103 of the position controller 100, the transmission shaft 301 drives the rotation of the external components of the position controller 100. Furthermore, in this embodiment, the position controller 100 both rotates and bears load, simulating actual working conditions.

[0045] The following describes a test method for a vertical test device according to this embodiment:

[0046] Please refer to Figures 1 to 5 A testing method for a vertical testing device is provided, wherein the method is applied to a vertical testing device and comprises the following steps:

[0047] Step S1: Install the test structure 1 in the test frame 4. Specifically, place the position controller 100 and the screw 101 in the test frame 4. The screw 101 is fixed and locked to the fixed end cover 400 through the first joint 102. The bottom of the position controller 100 is connected to the transmission shaft 301 through the second joint 103.

[0048] Step S2: Apply rotation and load to the test structure 1, and adjust the speed and load size for testing. Specifically, turn on the drive motor 200, drive the first gear 203 to rotate, and then transmit the force to the second gear 300, and then transmit it to the transmission shaft 301 through the second gear 300, and finally transmit it to the position controller 100, so as to realize the simulation test of the rotation process of the position controller 100. Specifically, after the hydraulic jack 600 receives the pump body drive to lift, it transmits the force to the connecting member 7, and then transmits it to the fixing member 8 through the connecting member 7, and then transmits it to the second bearing 9, and further transmits it to the transmission shaft 301, and finally transmits it to the position controller 100, so as to realize the simulation test of the load-bearing process of the position controller 100. During the test, the rotation speed of the position controller 100 is adjusted by the drive motor 200, and the load borne by the position controller 100 is adjusted by adjusting the stroke of the piston of the hydraulic jack 600. During the test, rotation and load are applied at the same time to observe the state of the position controller 100.

[0049] Step S3: Observe the state of the test structure 1 during the test. During the test, read the detection data of the first sensor 500, the sensor 501 and the second sensor 502 obtained in the display 503 to determine whether the test position controller 100 has problems such as abnormal sound, deformation and vibration.

[0050] Example 2

[0051] The specific structure of a vertical testing device in this embodiment is described below:

[0052] This embodiment has the same structure as the first embodiment, except for the following differences:

[0053] Please refer to Figures 6 to 8 The test structure 1 includes a bearing box 104. Specifically, in this embodiment, the bearing box 104 combines transmission and load-bearing functions to provide higher operating efficiency and stability, which helps to reduce mechanical complexity, thereby improving reliability and reducing maintenance costs. The bearing box 104 has a core shaft 105. Specifically, the core shaft 105 is threadedly connected to the bearing box 104. The sensor 501 is set in the bearing box 104. One end of the core shaft 105 is fixed to the second fixing plate 403, and the other end of the core shaft 105 is connected to the transmission shaft 301. Specifically, under the action of friction and applied load between the transmission shaft 301 and the core shaft 105 inside the bearing box 104, the transmission shaft 301 drives the core shaft 105 inside the bearing box 104 to rotate, thereby realizing the rotation of the internal components of the bearing box 104. Furthermore, under the action of the second fixing plate 403, the position of the bearing box 104 can be ensured to be stable during the test, that is, axial displacement can be avoided and the bearing box 104 can be prevented from falling out from the top.

[0054] The following describes a test method for a vertical test device according to this embodiment:

[0055] A testing method for a vertical testing device, the method being applied to a vertical testing device, comprises the following steps:

[0056] Step S1: Install the test structure 1 in the test frame 4. Specifically, place the bearing box 104 and the internal core shaft 105 in the test frame 4. One end of the core shaft 105 is fixed to the second fixing plate 403. Under the action of the second fixing plate 403, the position of the bearing box 104 is ensured to be stable during the test. The other end of the core shaft 105 is connected to the transmission shaft 301.

[0057] Step S2: Apply rotation and load to the test structure 1, and adjust the speed and load size for testing. Specifically, turn on the drive motor 200, drive the first gear 203 to rotate, and then transmit the force to the second gear 300, and then transmit it to the transmission shaft 301 through the second gear 300, and finally transmit it to the core shaft 105 and drive the bearing box 104 to rotate, so as to realize the simulation test of the rotation process of the bearing box 104. Specifically, after the hydraulic jack 600 receives the pump body drive to lift, it transmits the force to the connecting member 7, and then transmits it to the fixing member 8 through the connecting member 7, and then transmits it to the second bearing 9, and further transmits it to the transmission shaft 301, and finally transmits it to the core shaft 105 and the bearing box 104, so as to realize the simulation test of the bearing box 104 load-bearing process. During the test, the rotation speed of the bearing box 104 is adjusted by the drive motor 200, and the load borne by the bearing box 104 is adjusted by adjusting the stroke of the piston of the hydraulic jack 600. During the test, rotation and load are applied simultaneously to observe the state of the bearing box 104.

[0058] Step S3: Observe the state of the test structure 1 during the test. During the test, read the detection data of the first sensor 500, the sensor 501 and the second sensor 502 obtained in the display 503, and test whether the bearing box 104 has abnormal noise, oil leakage, vibration and other problems.

[0059] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A testing method for a vertical testing device, characterized in that: The steps are as follows: Install the test structure in the test frame; Apply rotation and load to the test structure, and adjust the speed and load size for testing; Observe the state of the test structure during the test; The test structure includes a test structure, a first drive structure, a first transmission structure, and a test frame. The test structure, drive structure, and transmission structure are all arranged on the test frame. The drive structure is connected to a portion of the transmission structure, and another portion of the transmission structure is in transmission connection with the test structure. The first drive structure transmits the motion pair to the test structure through the first transmission structure to realize a rotation test process of the test structure. The test frame is composed of a frame body, a first support plate, a second support plate and a bottom frame; The first driving structure includes a first fixing plate, the first fixing plate is fixedly connected to the second supporting plate, the driving motor is fixedly connected to the first fixing plate, the output end of the driving motor has a shaft sleeve, and the shaft sleeve has a first gear outside; The first transmission structure includes a transmission shaft, a second gear is provided on the outside of the transmission shaft, the second gear is meshed with the first gear, and a first bearing and a retaining spring are provided on the outside of the transmission shaft, the retaining spring is located at the bottom of the first bearing; The vertical testing device also includes a second driving structure and a second transmission structure, the second driving structure is connected to a part of the second transmission structure, and the other part of the second transmission structure is connected to the first transmission structure. The second driving structure includes a hydraulic jack, and the hydraulic jack is arranged on the base frame through a fixed seat. The second transmission structure includes a connecting member, the output end of the hydraulic jack is transmission-connected to a part of the connecting member, and the other part of the connecting member is transmission-connected to the transmission shaft. The connecting member is further provided with a fixing member and a second bearing, and the fixing member is located below the second bearing. The second driving structure transmits the motion pair to the test structure through the second transmission structure and the first transmission structure to realize the load testing process of the test structure; The test structure includes a positioner or a bearing box; A screw is provided in the position controller, a fixed end cover is further provided on the first support plate, the screw is fixed to the fixed end cover via a first joint, the position controller is connected to the transmission shaft via a second joint, and a sensor is provided on the position controller; The bearing box has a core shaft, the sensor is arranged on the bearing box, and a second fixed plate is also arranged on the first support plate. One end of the core shaft is fixedly connected to the second fixed plate, and the other end of the core shaft is connected to the transmission shaft.

2. The testing method of a vertical testing device according to claim 1, wherein: The first support plate is arranged on the first part of the frame body, the second support plate is arranged on the second part of the frame body, the base frame is arranged on the bottom of the second support plate, and the second fixing plate is fixed to the first support plate by fasteners.

3. The testing method of a vertical testing device according to claim 2, wherein: The transmission structure further includes a protective cover, which is arranged on a side of the second support plate close to the first fixing plate. The first gear, the transmission shaft and the second gear are all arranged in the protective cover.

4. The testing method of a vertical testing device according to claim 1, wherein: The vertical testing device also includes a detection element, which includes a first sensor, an inductor, a second sensor and a display. The first sensor is arranged on the first support plate, the inductor is arranged on the testing structure, the second sensor is arranged on the fixing part, and the display is arranged on the base frame.

5. The testing method of a vertical testing device according to claim 4, characterized in that: The second fixing plate is provided with a plurality of first holes and a plurality of second holes, wherein the diameter of the first holes is larger than that of the second holes.

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