Multi-sensor array measuring device for electric drive shafting pad selection

Abstract

The invention relates to the field of sensor measurement, in particular to a multi-sensor array measuring device for gasket selection of an electric drive shafting, which comprises a driving gear and a driven gear which are meshed with each other, bearings are mounted on rotating shafts of the driving gear and the driven gear, a base is arranged below the driven gear, and a plurality of sensors are arranged on the base. A rotating shaft of the driven gear is rotationally connected to a base, and a driving piece is installed on the base. According to the invention, the abutting block abuts against the outer ring of the bearing under the pressure action of the first compression spring, so that the pressure sensor can monitor the generated pressure, and meanwhile, the distance sensor monitors the position value of the abutting block and transmits the value to an internal computer; the pressure change and distance change data are compared and calculated by the computer, so that the computer provides gaskets of corresponding specifications, the differential gear is subjected to rapid gasket selection through the equipment, and the gasket selection accuracy is ensured while the gasket selection efficiency of the multi-sensor array measuring device is ensured.

Description

Technical Field

[0001] The present invention relates to the field of sensor measurement, in particular to a multi-sensor array measurement device for selecting pads of an electric drive shaft system. Background Art

[0002] The electric drive shaft system is the core power transmission component in electric vehicles, responsible for transmitting the power of the motor to the wheels to drive the vehicle. The differential is mainly used to coordinate the speed difference between the left and right drive wheels when the vehicle turns to ensure smooth driving. The internal part of the differential is driven by the driving gear to rotate the driven gear, so it is necessary to accurately control the overlap of the two gears to ensure the stable operation of the differential. In order to control the meshing area between the two gears, it is necessary to control the specific position of the driving gear in the differential housing, so it is necessary to use gaskets to adjust the specific position of the gear. Most manufacturers only detect the distance generated by the displacement of the driving gear when selecting gaskets, and the static gasket selection accuracy cannot meet the requirements. The accuracy requirements of the differential under operating conditions are insufficient, resulting in a motion gap in the differential during operation, causing the meshing degree of the two gears to change and affecting the driving quality of the vehicle. To address this problem, a patent application with patent publication number CN115388836B provides a hybrid transmission shaft system size dynamic measurement device and measurement method. By simulating the working state of the transmission, the measurement sensor measures the bearing distance joint surface size of the shaft in real time, and accurately outputs the measurement value for subsequent selection and adjustment of the shim. However, in order to ensure accurate shim selection, this measurement method requires a long time to detect the displacement of the bearing to ensure the stable use of the differential, resulting in a significant decrease in the shim selection efficiency of the differential.

[0003] Therefore, a multi-sensor array measurement device for electric drive shaft system selection is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-sensor array measurement device for selecting gaskets of an electric drive shaft system, so as to solve the problem that when selecting gaskets, only the distance moved by the driving gear is detected, and it is impossible to simulate the influence of the gasket on the internal gear during the actual operation of the reducer. At the same time, it solves the problem that the device performs accurate measurements under the condition of simulating the internal operation of the differential, resulting in a decrease in detection and measurement efficiency.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The transmission gear of claim 1, wherein the two gears are connected along the longitudinal axis of the gear train and the transmission gear ...

[0007] Preferably, the sensor module includes a pressure sensor and a distance sensor, a pressure plate is abutted between one side of the pressure sensor and the first compression spring, a hole is formed on the pressure plate, and the distance sensor contacts the abutment block through the hole.

[0008] When installing the differential in the electric drive shaft system, attention should be paid to the overlapping area of ​​the teeth on the driving gear and the driven gear, and the distance between the driving gear and the driven gear should be adjusted. However, because the differential housing is a pre-produced product, the position of the bearing placement groove cannot be changed, so that after the bearing follows the gear displacement, the distance between the bearing and the inner wall of the placement groove will change. At this time, a gasket needs to be placed in the placement groove to prevent the bearing from moving in the placement groove, while also ensuring that the distance between the two gears remains unchanged. Therefore, choosing the right type of gasket is related to the driving performance of the entire vehicle. Specifically, the corresponding two gears are placed in the corresponding positions, the equipment is started, and the driving part drives the driving gear to move to the specified position and mesh with the driven gear on one side. The driven gear drives the driven gear to rotate. At this time, the abutment block will push the abutment block against the outer ring of the bearing under the pressure of the first compression spring. It should be noted that the measuring device is equipped with an intelligent sensing system, and the intelligent sensing system includes an internal computer and a sensor module installed in the measuring device. The internal computer is electrically connected to distance sensors and pressure sensors at multiple different positions through wires, and the distance sensor is used to measure the distance between the abutment block and the inner wall of one side of the measuring frame body. The internal computer stores the measured value. At the same time, because the abutment block will abut the outer ring of the bearing, and the bearing is fixed on the rotating shaft of the driving gear, the bearing also needs to move after the driving gear moves to the specified position. When the bearing moves, it will push the abutment block, and the moving abutment block will compress the abutment first compression spring. The pressure generated by the compressed first compression spring will be transmitted to the pressure plate, so that the pressure sensor can monitor the generated pressure and transmit the data to the internal computer. At the same time, because the driving gear will rotate during the measurement process, the measured value will continue to change. By transmitting the pressure change and the change data of the distance sensor to the computer for comparison and calculation, the computer will give the required gasket of the corresponding specification, and the differential gear can be quickly selected through the equipment, ensuring the efficiency of the electric drive shaft system gasket selection while also ensuring the accuracy of the gasket selection.

[0009] Preferably, a top cover is provided above the base, a telescopic rod is installed between one side of the base and the top cover, a plurality of conical guide columns are fixedly installed on the base, a guide hole cooperating with the conical guide column is opened on the top cover, an upper measuring frame is installed on the top cover, when the top cover and the base abut against each other, the conical guide column extends into the guide hole, the upper measuring frame and the lower measuring frame abut against each other and overlap to form a measuring frame body, the abutment blocks are provided in three groups and are evenly distributed circumferentially in the measuring frame body, and two groups of the abutment blocks are symmetrically arranged in the lower measuring frame.

[0010] Because only the lower halves of the driving gear and the driven gear are installed on the base when they are placed on the base, when the driving member drives the two gears to rotate, the upper parts of the gears are not constrained, resulting in a larger amplitude of shaking of the two gears during rotation, which is seriously inconsistent with the actual operating state of the gear set in the differential housing. Therefore, when the two gears are placed on the base, the upper top cover is pushed down to limit the lower gear. The limiting method keeps the rotation state of the two gears stable. Of course, the tapered guide column fixed on the base and the matching guide hole on the top can accurately ensure that the base and the top cover fit together perfectly. The upper and lower measuring frames are set so that when the two overlap, they form the measuring frame body. The three sets of evenly arranged abutment blocks set in the measuring frame body can accurately detect the displacement distance and shaking pressure of the driving gear, thereby improving the accuracy of the measuring device during use, ensuring the efficiency of the electric drive shaft system pad selection while ensuring the accuracy of the pad selection.

[0011] Preferably, the driving member includes a rotating cylinder, the rotating shaft of the driving gear extends into the rotating cylinder, the base is provided with a rotating frame, the rotating cylinder is rotatably connected to the rotating frame, the base is fixedly mounted with a driving motor, the output shaft of the driving motor is fixedly mounted with a prismatic telescopic rod, the movable end of the prismatic telescopic rod is fixedly mounted with the rotating frame, an electric telescopic rod is fixedly mounted on one side of the base, the movable end of the prismatic telescopic rod is rotatably mounted with a connecting plate, and the movable end of the electric telescopic rod is fixedly mounted with the connecting plate.

[0012] When selecting shims, it is necessary to comprehensively consider the deviation of the gear set during the actual operation of the differential. Therefore, it is necessary to drive the gear set to operate in order to accurately select the shims. The electric telescopic rod can compare the internally set parameters with the sensor module, and push the active gear to the specified position through the rotating frame and the rotating cylinder. The drive motor then drives the rotating frame to select through the prismatic telescopic rod. The rotation of the rotating frame drives the active gear to rotate through the rotating cylinder. The rotation of the active gear simulates the situation when the differential is in operation. At the same time, the electric telescopic rod will shake to different degrees on both sides to simulate the state of the vehicle during specific driving. It can improve the accuracy of the detection device when used, ensure the efficiency of the electric drive shaft system shim selection, and also ensure the accuracy of the shim selection.

[0013] Preferably, a rectangular window communicating with the placement cavity is provided on the base, a hydraulic cylinder is fixedly installed in the placement cavity, a support frame is fixedly installed on the movable end of the hydraulic cylinder, a second compression spring abutting against the support frame is sleeved on the hydraulic cylinder, a roller is rotatably connected to the support frame, the roller extends out of the rectangular window, a hydraulic rod is fixedly installed in the placement cavity, an abutment plate abutting against the hydraulic rod is fixedly installed on the long rod, and a connecting pipe is installed between the hydraulic rod and the hydraulic cylinder.

[0014] It should be noted that, because a first compression spring is installed on one side of the abutment block, the extrusion force generated by the first compression spring will push the two abutment blocks tightly against each other. When the active gear moves down and drives the bearing to enter the base below, the bearing will first abut the two abutment blocks and push the two abutment blocks away from each other. Long-term wear will cause the overall length of the abutment block to change, affecting the measurement accuracy. When the active gear moves down, it will abut the roller below and push the roller down due to gravity. The downward-moving roller pushes the movable end of the hydraulic cylinder below to extend through the support frame, so that the piston rod The liquid in the hydraulic cylinder is drawn into the piston cylinder through the connecting pipe, causing the movable end of the piston rod to move to one side and retract away from the connecting plate, so that the compression spring can squeeze the abutment block normally. Of course, the first compression spring will pull the hydraulic cylinder back to its original position. At this time, the liquid in the hydraulic cylinder will enter the hydraulic rod to push the hydraulic rod to extend, against the connecting plate, and through the connecting plate and the long rod, drive the abutment block to move, so that the two abutment blocks are away from each other, facilitating the entry of the bearing and avoiding friction that may cause damage to the abutment block. While ensuring the efficiency of the electric drive shaft system pad selection, the accuracy of the pad selection is also guaranteed.

[0015] Preferably, the abutment block is an arc-shaped structure as a whole, and the cross-section of the abutment block is L-shaped. Two symmetrical rolling grooves are opened at one end of the abutment block away from the long rod. The rolling grooves are arranged near the two ends of the abutment block, and balls are rollingly connected in the rolling grooves.

[0016] Because the driving gear needs to rotate and the abutment block needs to abut the outer ring of the bearing, the driving gear will drive the inner ring of the bearing to rotate at the same time when it rotates. Of course, after the differential is installed, the outer ring is fixed, so the outer ring cannot rotate. In the present invention, the outer ring of the bearing is not fixed. The displacement of the outer ring of the bearing during the rotation of the gear and the extrusion force on the gasket on one side are judged by the displacement of the abutment block. Therefore, in order to prevent the wear of the abutment block caused by the displacement or rotation of the bearing, the present invention opens a rolling groove on one side of the abutment block, and uses the balls arranged in the rolling groove to squeeze the outer ring of the bearing, thereby reducing the wear of the outer ring of the bearing or the abutment block when the bearing moves and rotates, improving the accuracy of the abutment block when in use, ensuring the efficiency of the electric drive shaft system gasket selection, and ensuring the accuracy of the gasket selection.

[0017] The cam is fixedly mounted on the drive shaft of the driving gear, and the cam is fixedly mounted on the drive shaft of the driving gear, so that the cam is fixed on the drive shaft of the driving gear.

[0018] Preferably, the base and the top cover are both provided with measuring grooves, and the upper measuring frame and the lower measuring frame are both clamped in the measuring grooves. The upper measuring frame and the lower measuring frame are both made of metal materials. Because different models of cars use different differential housings, the distances between the bearings and the inner walls at both ends of the bearing placement groove are not equal. When assembling differentials of different vehicle models, different models of measuring frames need to be used to make the inner wall width and depth of the measuring frame equal to the inner wall width and depth of the differential housing placement groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The abutment block presses against the outer ring of the bearing under the pressure of the first compression spring, allowing the pressure sensor to monitor the generated pressure. At the same time, the distance sensor monitors the position value of the abutment block and transmits the value to the internal computer. The computer compares and calculates the pressure change with the distance change data, and then provides the gasket of the corresponding specification. The equipment can quickly select the gasket for the differential gear, ensuring the efficiency of the multi-sensor array measurement device while ensuring the accuracy of the gasket selection.

[0021] 2. The driving gear is pushed to the specified position through the rotating frame and the rotating cylinder, and then the driving motor drives the driving gear to rotate. The rotation of the driving gear simulates the operation of the differential. At the same time, the electric telescopic rod will shake to different degrees on both sides to simulate the state of the vehicle in the specific driving process. It can improve the accuracy of the detection device when used, ensure the efficiency of the electric drive shaft system multi-sensor array measurement device in pad selection, and ensure the accuracy of pad selection.

[0022] 3. The top cover is set so that it moves downward to limit the gear set during movement. At the same time, the upper measuring frame follows the top cover and moves downward to abut against the lower measuring frame below, so that the two overlap to form the measuring frame body. Through the three groups of evenly arranged abutment blocks in the measuring frame body, the displacement distance and shaking pressure of the driving gear can be accurately detected, thereby improving the accuracy of the measuring device during use, ensuring the efficiency of the electric drive shaft system pad selection and the accuracy of the pad selection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 Schematic diagram of the structure of the rotating frame of the present invention;

[0025] Figure 3 Schematic diagram of the internal structure of the rotating drum in the present invention;

[0026] Figure 4 Schematic diagram of the internal structure of the base in the present invention;

[0027] Figure 5 Schematic diagram of the structure of the abutment block in the present invention;

[0028] Figure 6 Schematic diagram of the structure of the support frame in the present invention;

[0029] Figure 7 It is a structural schematic diagram of the measuring frame body in the present invention;

[0030] Figure 8 It is a structural diagram of the sensor module in the present invention.

[0031] In the figure: 1. base; 2. measuring slot; 3. measuring frame body; 301. lower measuring frame; 302. upper measuring frame; 4. driving gear; 5. driven gear; 6. top cover; 7. telescopic rod; 8. conical guide column; 9. driving motor; 10. prismatic telescopic rod; 11. connecting plate; 12. electric telescopic rod; 13. rotating frame; 14. rotating cylinder; 15. hydraulic cylinder; 16. bearing; 17. end cover; 18. push ring; 19. limit plate; 20. support frame; 21. second compression spring; 22. abutment block; 23. long rod; 24. first compression spring; 25. abutment plate; 26. sensor module; 261. pressure sensor; 262. distance sensor; 27. hydraulic rod; 28. roller; 29. ​​rectangular window; 30. guide hole; 31. pressure plate; 32. ball; 33. placement cavity. DETAILED DESCRIPTION

[0032] See also Figures 1 to 8 The present invention provides a multi-sensor array measurement device for electric drive shaft system selection pads, and the technical solution is as follows:

[0033] A multi-sensor array measurement device for electric drive shaft system selection pads, please refer to Figure 1 、 Figure 5 、 Figure 7 and Figure 8 , including two mutually meshing driving gears 4 and driven gears 5, bearings 16 are installed on the rotating shafts of the driving gear 4 and the driven gear 5, a base 1 is provided below the driven gear 5, the rotating shaft of the driven gear 5 is rotatably connected to the base 1, and a lower measuring frame 301 is provided on the base 1 for placing the bearings 16 on one side, a placement cavity 33 is provided in the base 1, and a plurality of mounting holes connected to the placement cavity 33 are provided on the lower measuring frame 301, a sensor module 26 extending into the mounting hole is fixedly installed in the placement cavity 33, the sensor module 26 includes a pressure sensor 261 and a distance sensor 262, and a plurality of groups of symmetrically arranged abutment blocks 22 are provided in the lower measuring frame 301, A plurality of long rods 23 are provided in the lower measuring frame 301, one end of the long rod 23 is fixedly installed with the abutment block 22, and the other end of the long rod 23 is slidably connected to the base 1, and a first compression spring 24 is sleeved on the long rod 23, and a pressure plate 31 is abutted between one side of the pressure sensor 261 and the first compression spring 24, and a hole is provided on the pressure plate 31, and the distance sensor 262 contacts the abutment block 22 through the hole. The abutment block 22 is an arc-shaped structure as a whole, and the cross-section of the abutment block 22 is L-shaped. Two symmetrical rolling grooves are provided at the end of the abutment block 22 away from the long rod 23, and the rolling grooves are arranged near the two ends of the abutment block 22, and balls 32 are rollingly connected in the rolling grooves.

[0034] See also Figure 1 and Figure 7 A top cover 6 is provided above the base 1, and a telescopic rod 7 is installed between one side of the base 1 and the top cover 6. A plurality of conical guide columns 8 are fixedly installed on the base 1, and a guide hole 30 cooperating with the conical guide column 8 is opened on the top cover 6. An upper measuring frame 302 is installed on the top cover 6. When the top cover 6 and the base 1 abut against each other, the conical guide column 8 extends into the guide hole 30, and the upper measuring frame 302 and the lower measuring frame 301 abut against each other and overlap to form a measuring frame body 3. The abutment blocks 22 are provided in three groups and are evenly distributed in the measuring frame body 3 around the circumference, and two groups of abutment blocks 22 are symmetrically arranged in the lower measuring frame 301. Measuring slots 2 are opened on the base 1 and the top cover 6. The upper measuring frame 302 and the lower measuring frame 301 are both clamped in the measuring slot 2, and the upper measuring frame 302 and the lower measuring frame 301 are both made of metal material.

[0035] See also Figure 1 、 Figure 2 and Figure 3, including a rotating cylinder 14, the rotating shaft of the driving gear 4 extends into the rotating cylinder 14, a rotating frame 13 is provided on the base 1, the rotating cylinder 14 is rotatably connected to the rotating frame 13, a driving motor 9 is fixedly mounted on the base 1, and a prismatic telescopic rod 10 is fixedly mounted on the output shaft of the driving motor 9, the movable end of the prismatic telescopic rod 10 is fixedly mounted on the rotating frame 13, an electric telescopic rod 12 is fixedly mounted on one side of the base 1, the movable end of the prismatic telescopic rod 10 is rotatably mounted with a connecting plate 11, and the movable end of the electric telescopic rod 12 is fixedly mounted on the connecting plate 11, a plurality of limiting pieces 19 are fixedly mounted in the rotating cylinder 14, the limiting pieces 19 are arranged in a ring in the rotating cylinder 14, one end of the rotating cylinder 14 is threadedly connected to an end cover 17, and a push ring 18 is rotatably connected in the end cover 17, and the push ring 18 abuts against the limiting piece 19.

[0036] See also Figure 4 and Figure 6 A rectangular window 29 communicating with the placement cavity 33 is provided on the base 1. A hydraulic cylinder 15 is fixedly installed in the placement cavity 33. A support frame 20 is fixedly installed on the movable end of the hydraulic cylinder 15. A second compression spring 21 abutting against the support frame 20 is sleeved on the hydraulic cylinder 15. A roller 28 is rotatably connected to the support frame 20. The roller 28 extends out of the rectangular window 29. A hydraulic rod 27 is fixedly installed in the placement cavity 33. An abutment plate 25 abutting against the hydraulic rod 27 is fixedly installed on the long rod 23. A connecting pipe is installed between the hydraulic rod 27 and the hydraulic cylinder 15.

[0037] For specific usage, please refer to Figure 1 、 Figure 2 and Figure 3 1. Install the driven gear 5 on the base 1, lift the rotating cylinder 14, insert the rotating shaft of the driving gear 4 into the rotating cylinder 14, slowly lower the driving gear 4, and rotate the end cover 17 on one side at the same time. Because the end cover 17 is threadedly connected to the rotating cylinder 14, the end cover 17 can drive the push ring 18 rotating thereon to move when it rotates. The moving push ring 18 pushes the limiting piece 19 on one side to continuously approach the rotating shaft of the driving gear 4, squeeze the driving gear 4, and fix the driving gear 4 in the rotating cylinder 14.

[0038] See also Figure 1 、 Figure 5 and Figure 7The cam 6 of the first gear 4 is fixed on the second gear 5 and the cam 6 is fixed on the second gear 5. The cam 6 of the first gear 4 is fixed on the second gear 5 and the cam 6 is fixed on the second gear 5. The cam 6 of the second gear 4 is fixed on the second gear 5 and the cam 6 is fixed on the second gear 5.

[0039] See also Figure 5 、 Figure 6 and Figure 7 When the driving gear 4 moves downward and drives the bearing 16 to enter the base 1 below, the bearing 16 will first abut the two abutment blocks 22 and push the two abutment blocks 22 away from each other. Long-term wear will cause the overall length of the abutment blocks 22 to change, affecting the measurement accuracy. When the driving gear 4 moves downward, it will abut the roller 28 below and push the roller 28 downward due to gravity. The downward-moving roller 28 pushes the movable end of the hydraulic cylinder 15 below to extend through the support frame 20, so that the liquid in the piston rod is drawn into the piston cylinder through the connecting pipe, so that the movable end of the piston rod will move to one side and retract away from the connecting plate 11, so that the compression spring can normally squeeze the abutment block 22.

[0040] See also Figure 1 and Figure 7After the preparation is completed, the equipment is started. The electric telescopic rod 12 can compare the internally set parameters with the sensor module 26, push the driving gear 4 to the specified position through the rotating frame 13 and the rotating cylinder 14, and mesh with the driven gear 5 on one side. The driving gear 4 drives the driven gear 5 to rotate, and then the driving motor 9 drives the rotating frame 13 through the prismatic telescopic rod 10. The rotation of the rotating frame 13 drives the driving gear 4 to rotate through the rotating cylinder 14. The rotation of the driving gear 4 simulates the situation when the differential is running. When the driving gear 4 rotates, it will drive the inner ring of the bearing 16 to rotate at the same time. Of course, after the differential is installed, the outer ring is fixed. Therefore, the outer ring cannot rotate. In the present invention, the outer ring of the bearing 16 is not fixed. The displacement of the outer ring of the bearing 16 during the rotation of the gear and the extrusion force on the gasket on one side are judged by the displacement of the abutment block 22. Therefore, in order to prevent the wear of the abutment block 22 caused by the displacement or rotation of the bearing 16, the present invention opens a rolling groove on one side of the abutment block 22, and uses the balls 32 arranged in the rolling groove to squeeze the outer ring of the bearing 16, thereby reducing the wear of the outer ring of the bearing 16 or the abutment block 22 when the bearing 16 moves and rotates. At the same time, the electric telescopic rod 12 will shake to different degrees to both sides to simulate the state of the vehicle during specific driving.

[0041] See also Figure 1 、 Figure 5 、 Figure 7 and Figure 8 At this time, the abutment block 22 is pushed by the pressure of the first compression spring 24 to always abut the outer ring of the bearing 16. The distance sensor 262 measures the distance between the abutment block 22 and the inner wall of one side of the measuring frame body 3, and the internal computer stores the measured value. At the same time, because the abutment block 22 abuts the outer ring of the bearing 16, and the bearing 16 is fixed to the rotating shaft of the driving gear 4, the bearing 16 needs to move after the driving gear 4 moves to the specified position. When the bearing 16 moves, it pushes the abutment block 22, and the moving abutment block 22 compresses the abutting first compression spring 24. The pressure generated by the compressed first compression spring 24 is transmitted to the pressure plate 31, allowing the pressure sensor 261 to monitor the generated pressure and transmit the data to the internal computer. At the same time, because the driving gear 4 rotates during the measurement process, the measured value will continue to change. By transmitting the pressure change and the change data of the distance sensor 262 to the computer for comparison and calculation, the computer determines the required shim of corresponding specifications, and the differential gear is quickly selected through the device.

[0042] See also Figure 1 and Figure 3After the measurement is completed, open the top cover 6 upwards and rotate the end cover 17 on one side. The rotation of the end cover 17 drives the push ring 18 rotating on it to move, so that the limit piece 19 on one side is continuously away from the rotating shaft of the driving gear 4 and returns to its original position. Pull the driving gear 4 upward to flip it over, take out the measured differential gear, and take the corresponding specification gasket given by the measuring device for installation.

[0043] A specific embodiment of the present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the embodiment described above. For those skilled in the art, various changes, modifications, substitutions, and variations to these embodiments without departing from the principles and ideas of the present invention should still fall within the scope of protection of the present invention.

Claims

1. A multi-sensor array measuring device for selecting pads of an electric drive shaft system, comprising two mutually meshing driving gears (4) and driven gears (5), wherein bearings (16) are mounted on the rotating shafts of the driving gears (4) and the driven gears (5), and characterized in that: A base (1) is provided below the driven gear (5), the rotating shaft of the driven gear (5) is rotatably connected to the base (1), a driving member is installed on the base (1), and the driving member is connected to the driving gear (4), a lower measuring frame (301) for placing a bearing (16) on one side is provided on the base (1), a placement cavity (33) is provided in the base (1), a plurality of mounting holes connected to the placement cavity (33) are provided on the lower measuring frame (301), and an extension is fixedly installed in the placement cavity (33). The sensor module (26) is inserted into the mounting hole, and the lower measuring frame (301) is provided with multiple groups of symmetrically arranged abutment blocks (22). The lower measuring frame (301) is provided with multiple long rods (23), one end of the long rod (23) is fixedly installed with the abutment block (22), and the other end of the long rod (23) is slidably connected to the base (1). The long rod (23) is sleeved with a first compression spring (24), and the two ends of the first compression spring (24) are respectively in abutment with the sensor module (26) and the abutment block (22).

2. The multi-sensor array measuring device for selecting a pad of an electric drive shaft system according to claim 1, characterized in that: A top cover (6) is provided above the base (1), a telescopic rod (7) is installed between one side of the base (1) and the top cover (6), a plurality of conical guide columns (8) are fixedly installed on the base (1), a guide hole (30) cooperating with the conical guide column (8) is provided on the top cover (6), an upper measuring frame (302) is installed on the top cover (6), when the top cover (6) and the base (1) abut against each other, the conical guide column (8) extends into the guide hole (30), the upper measuring frame (302) and the lower measuring frame (301) abut against each other and overlap to form a measuring frame body (3), the abutting blocks (22) are provided in three groups, and are evenly distributed in the measuring frame body (3), wherein two groups of the abutting blocks (22) are symmetrically arranged in the lower measuring frame (301).

3. The multi-sensor array measuring device for selecting a pad of an electric drive shaft system according to claim 1, characterized in that: The driving member comprises a rotating cylinder (14), the rotating shaft of the driving gear (4) extends into the rotating cylinder (14), a rotating frame (13) is provided on the base (1), the rotating cylinder (14) is rotatably connected to the rotating frame (13), a driving motor (9) is fixedly mounted on the base (1), a prismatic telescopic rod (10) is fixedly mounted on the output shaft of the driving motor (9), the movable end of the prismatic telescopic rod (10) is fixedly mounted on the rotating frame (13), an electric telescopic rod (12) is fixedly mounted on one side of the base (1), the movable end of the prismatic telescopic rod (10) is rotatably mounted with a connecting plate (11), and the movable end of the electric telescopic rod (12) is fixedly mounted on the connecting plate (11).

4. The multi-sensor array measuring device for selecting pads of an electric drive shaft system according to claim 2, characterized in that: The base (1) is provided with a rectangular window (29) communicating with the placement cavity (33); a hydraulic cylinder (15) is fixedly installed in the placement cavity (33); a support frame (20) is fixedly installed on the movable end of the hydraulic cylinder (15); a second compression spring (21) is sleeved on the hydraulic cylinder (15) and abuts against the support frame (20); a roller (28) is rotatably connected to the support frame (20); the roller (28) extends outside the rectangular window (29); a hydraulic rod (27) is fixedly installed in the placement cavity (33); an abutment plate (25) abutting against the hydraulic rod (27) is fixedly installed on the long rod (23); and a connecting pipe is installed between the hydraulic rod (27) and the hydraulic cylinder (15).

5. The multi-sensor array measuring device for selecting pads of an electric drive shaft system according to claim 1, characterized in that: The abutment block (22) is an arc-shaped structure as a whole, and the cross section of the abutment block (22) is L-shaped. Two symmetrically arranged rolling grooves are provided at one end of the abutment block (22) away from the long rod (23). The rolling grooves are arranged near the two ends of the abutment block (22), and balls (32) are rollingly connected in the rolling grooves.

6. The multi-sensor array measuring device for selecting pads of an electric drive shaft system according to claim 3, characterized in that: The sensor module (26) comprises a pressure sensor (261) and a distance sensor (262); a pressure plate (31) is in contact between one side of the pressure sensor (261) and the first compression spring (24); a hole is provided on the pressure plate (31); and the distance sensor (262) contacts the abutment block (22) through the hole.

7. The multi-sensor array measuring device for selecting pads of an electric drive shaft system according to claim 3, characterized in that: A plurality of limiting plates (19) are fixedly installed in the rotating cylinder (14), and the limiting plates (19) are arranged in a ring shape in the rotating cylinder (14). One end of the rotating cylinder (14) is threadedly connected to an end cover (17), and a push ring (18) is rotatably connected in the end cover (17), and the push ring (18) abuts against the limiting plates (19).

8. The multi-sensor array measuring device for selecting pads of an electric drive shaft system according to claim 2, characterized in that: The base (1) and the top cover (6) are both provided with a measuring groove (2), the upper measuring frame (302) and the lower measuring frame (301) are both clamped in the measuring groove (2), and the upper measuring frame (302) and the lower measuring frame (301) are both made of metal material.

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