An adaptive detection device for starting torque of a gear shaft system

Abstract

This invention discloses an adaptive detection device for the starting torque of a gear shaft system, comprising a torque testing mechanism, a rotating shaft mechanism, a support base, a clamping and positioning base, and a pressing mechanism. The rotating shaft mechanism includes a rotating shaft and a connecting plate, and the torque testing mechanism is connected to the rotating shaft. A vertical sliding groove is provided on one side of the support base, and the connecting plate is slidably connected to the support base. The clamping and positioning base includes a horizontally arranged base with a V-shaped groove on its upper side and a positioning pin on its lower side. A clamping plate is horizontally arranged above the base. The pressing mechanism is installed on the upper side of the support base and has a pressure head located directly above the clamping plate. This invention has good versatility, enabling the detection of the starting torque of different gear shafts. Even without knowing the design parameters of the object being tested, it can be quickly tested, and the operation process is simple with good detection results.

Description

Technical Field

[0001] This invention relates to the field of gear shaft system detection technology, and in particular to an adaptive detection device for the starting torque of a gear shaft system. Background Technology

[0002] The drive system of an automobile mainly consists of a power source and a gear and shaft system. The gear and shaft system is a mechanical transmission device composed of gears, shafts, bearings, and a differential, which achieves power conversion, speed change, and distribution through the meshing of gears and the transmission of power through the shaft. In the automotive industry, the performance of the gear and shaft system directly affects key indicators such as vehicle power, fuel economy, driving comfort, and safety.

[0003] Starting torque refers to the torque required to start a gear shaft system from a standstill. It is primarily used to evaluate and characterize the system's ease of starting, initial load, and power transmission efficiency in the initial stages. A reasonable starting torque ensures smooth power transmission and conversion, which is crucial for the stable operation and performance of the entire transmission system. Testing starting torque is essential for accurately understanding the starting performance of the gear shaft system. During new product development and mass production, it helps determine whether the system meets design and usage requirements. Furthermore, during benchmarking, testing the starting torque of competing products is necessary to formulate design specifications for new products under development.

[0004] Common testing methods include torque sensor testing and loading tests. The necessary tools typically include torque wrenches, high-precision torque sensors, and dynamic torque testers. However, when developing new products or benchmarking against competitors, where testing benches are unavailable, manual tools are often used to quickly test starting torque. This often involves using a combination of torque wrench, spline socket, and fixture tools, which presents the following drawbacks during the testing process:

[0005] 1. Existing testing equipment requires changing spline sleeve tooling and fixture tooling for each type of product being tested; this results in poor tool versatility, low work efficiency, and high management costs.

[0006] 2. When the design parameters of the object being tested are unknown, the operation of existing testing devices is complex and the cost of use is high.

[0007] 3. When benchmarking against competitors, the lack of suitable tooling often makes it impossible to detect the starting torque, resulting in poor performance. Summary of the Invention

[0008] In view of the above-mentioned shortcomings of the existing technology, the purpose of this invention is to solve the problems of poor adaptability, complicated operation, low detection efficiency and poor detection effect of existing detection equipment, and to provide an adaptive detection device for the starting torque of a gear shaft system. It has good versatility, can detect the starting torque of different gear shafts, and can quickly perform detection even if the design parameters of the object being tested are unknown. Moreover, the operation process is simple and the detection effect is good.

[0009] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: an adaptive detection device for starting torque of a gear shaft system, characterized in that it includes a torque testing mechanism, a rotating shaft mechanism, a support seat, a clamping and positioning seat, and a pressing mechanism;

[0010] The rotating shaft mechanism includes a rotating shaft and a connecting plate. One end of the rotating shaft is fixedly connected to the connecting plate, and the axis of the rotating shaft is perpendicular to the connecting plate. The torque testing mechanism has a detection shaft and a drive handle. The detection shaft is connected to the other end of the rotating shaft through a connecting sleeve. A vertical groove is provided on one side of the support base. The connecting plate of the rotating shaft mechanism is located in the groove and is slidably connected to the support base. A locking mechanism is provided between the connecting plate and the support base.

[0011] The clamping and positioning seat is installed on the other side of the support base. It includes a horizontally arranged base with a V-shaped groove on the upper side of the base. The length of the V-shaped groove is perpendicular to the support base, and its two ends pass through both sides of the base. The straight line of the bottom of the V-shaped groove is in the same vertical plane as the axis of rotation. A positioning pin is provided on the lower side of the base. The positioning pin is vertically arranged, and its upper end passes through the base and extends into the V-shaped groove. The upper end of the positioning pin is tapered. The positioning pin is threadedly connected to the base, and its axis is in the same vertical plane as the straight line of the bottom of the V-shaped groove. A clamping plate is horizontally arranged above the base. The clamping plate is connected to the base through several vertically arranged guide posts, and the clamping plate can move freely along the guide posts.

[0012] The clamping mechanism is installed on the upper side of the support base. It has a pressure head located directly above the clamping plate. The clamping mechanism can apply a downward force to the clamping plate.

[0013] Furthermore, a first scale line layer is vertically provided on one side of the support base where the slide groove is opened, and the first scale line layer is close to one side edge of the slide groove; a marking line is horizontally provided on the connecting plate, and the marking line is located on the same horizontal plane as the axis of rotation.

[0014] Furthermore, a second scale line layer is vertically provided on the side wall of one of the guide columns, and the second scale line layer corresponds to the 0 scale line of the first scale line layer.

[0015] Furthermore, the 0 mark is obtained by placing a reference axis of known radius into a V-groove and clamping it with a clamping plate.

[0016] Furthermore, the position of the rotating shaft mechanism and the axis of the object being measured satisfy the following:

[0017]

[0018] Where: ΔO is the height difference between the axis of the measured object and the reference axis; β is the angle between the side of the V-groove and the vertical plane of the straight line passing through the bottom of the V-groove; ΔH is the height difference between the surfaces of the clamping plate.

[0019] Furthermore, the cross-section of the groove is dovetail-shaped or "convex"-shaped; correspondingly, the cross-section of the connecting plate is also dovetail-shaped or "convex / I"-shaped; the locking mechanism is a locking bolt, one end of which penetrates the connecting plate and is threadedly connected to the connecting plate.

[0020] Furthermore, the end of the detection shaft connected to the connecting sleeve has a connecting post with a polygonal cross-section, and the connecting sleeve has a connecting hole corresponding to the connecting shaft. The detection shaft and the connecting sleeve are detachably connected through the cooperation of the connecting shaft and the connecting hole; the rotating shaft is fixedly connected to the connecting sleeve.

[0021] Furthermore, the support base has a boss on one side where the clamping positioning seat is installed, and the base of the clamping positioning seat is fixedly connected to the boss.

[0022] Furthermore, the clamping mechanism includes a pressure rod and a support; the support is connected to the support base through a clamping mounting seat, the length direction of the pressure rod is consistent with the length direction of the rotating shaft, and its middle part is rotatably connected to the support; the pressure head is connected to one end of the pressure rod through a vertically arranged connecting rod.

[0023] Furthermore, a grip handle is also provided on the support base.

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] 1. Simple structure, easy disassembly, good compatibility, and low manufacturing cost; through the cooperation of clamping positioning seat and clamping mechanism, shafts of different diameters can be inspected, avoiding the problem of needing to change spline sleeve tooling and fixture tooling for each product, thereby reducing tooling costs and management costs.

[0026] 2. Even when the design parameters of the object being tested are unknown, it can automatically install and adjust according to the shaft diameter and spline parameters of the gear shaft system being tested, without changing tooling or fixtures, and effectively clamp the shaft of the object being tested; it solves the problem of not being able to measure the starting torque of competing products when benchmarking against them due to the lack of suitable special tooling; the starting torque of various gear shaft systems within a certain range can be measured.

[0027] 3. During the testing process, by measuring the diameter difference of different objects being tested, and then adjusting the position of the rotating shaft mechanism accordingly, the rotating shaft and the object being tested can be quickly made coaxial, thus enabling rapid testing of starting torque. The operation is simple, the testing accuracy is high, the work efficiency is high, and the versatility is high. Especially when conducting starting torque measurement for new product development and benchmarking against competitors, it makes the data for benchmarking development work more complete and reliable. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the present invention.

[0029] Figure 2 For this Figure 1 Side view.

[0030] Figure 3 for Figure 2 A sectional view along line A-A.

[0031] Figure 4 This is a schematic diagram of the connection structure of the rotating shaft, connecting plate and support base in this invention.

[0032] Figure 5 This is a schematic diagram of the clamping positioning seat in the present invention.

[0033] Figure 6 This is a schematic diagram showing the difference in axial height and surface height between measured objects of different diameters.

[0034] In the diagram: 1—Support base, 2—Clamping mechanism, 3—Rotating shaft, 4—Connecting plate, 5—Detection shaft, 6—Drive handle, 7—Connecting bushing, 8—Slide groove, 9—Locking mechanism, 10—Base, 11—Positioning pin, 12—Clamping plate, 13—Guide post, 14—Pressure head, 15—First scale line layer, 16—Second scale line layer, 17—Boss, 18—Pressure rod, 19—Support, 20—Clamping mounting base, 21—Connecting rod, 22—Holding handle

[0035] β is the angle between the surface of the V-groove and the vertical plane, D is the diameter of the shaft of the object being measured, O is the axis position at the reference zero position, O1 is the axis position at the positive scale, O2 is the axis position at the negative scale, ΔH is the surface height difference, ΔO is the axis height difference, r0 is the axis radius at the reference zero position, r1 is the axis radius at the positive scale, and r2 is the axis radius at the negative scale. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the 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 the invention. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the terms "horizontal," "vertical," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. 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 based on the specific circumstances.

[0039] Example: See Figures 1 to 6An adaptive detection device for the starting torque of a gear shaft system includes a torque testing mechanism, a rotating shaft mechanism 3, a support base 1, a clamping and positioning base, and a pressing mechanism 2. The torque testing mechanism is a mature existing technology, a commercially available product, which includes a detection shaft 5, a drive handle 6, and a housing. The drive handle 6 is fixedly connected to the housing; and the drive handle 6 has a digital display dial in its center for displaying and reading torque data. When the torque testing mechanism is working, after the housing (drive handle 6) is fixed, the torque applied when the external force drives the detection shaft 5 to rotate can be detected by the torque testing mechanism and output and displayed through the digital display dial. In this solution, a reverse usage method is adopted, that is, after the detection shaft 5 is fixed, rotating the drive handle 6 (housing) can apply torque to the detection shaft 5, and the magnitude of the torque can be checked and displayed.

[0040] The rotating shaft 3 mechanism includes a rotating shaft 3 and a connecting plate 4. One end of the rotating shaft 3 is fixedly connected to the connecting plate 4, and the axis of the rotating shaft 3 is perpendicular to the connecting plate 4. The detection shaft 5 of the torque testing mechanism is connected to the other end of the rotating shaft 3 through a connecting sleeve 7. In a specific implementation, the end of the detection shaft 5 connected to the connecting sleeve 7 has a connecting post with a polygonal cross-section, and the connecting sleeve 7 has a connecting hole corresponding to the connecting shaft. The detection shaft 5 and the connecting sleeve 7 are detachably connected through the cooperation of the connecting shaft and the connecting hole; the rotating shaft 3 is welded and fixed to the connecting sleeve 7. Preferably, the cross-sections of the connecting post and the connecting hole are both rectangular, which facilitates snap-fit ​​connection and disassembly, and does not generate self-rotation during transmission, thereby making the measurement more accurate.

[0041] A vertical groove 8 is provided on one side of the support base 1. The connecting plate 4 of the rotating shaft 3 mechanism is located in the groove 8 and is slidably connected to the support base 1. A locking mechanism 9 is provided between the connecting plate 4 and the support base 1. In implementation, a first scale line layer 15 is vertically provided on the side of the support base 1 where the groove 8 is opened, and the first scale line layer 15 is close to the edge of the groove 8. A horizontal marking line is provided on the connecting plate 4, and the marking line is on the same horizontal plane as the axis of the rotating shaft 3. The end of the marking line near the first scale line layer 15 passes through the side of the connecting plate 4 near the scale line layer. This facilitates quick reading of the scale value of the current position of the axis of the rotating shaft 3 mechanism.

[0042] During processing, the cross-section of the slide groove 8 is dovetail-shaped or "convex"-shaped; correspondingly, the cross-section of the connecting plate 4 is also dovetail-shaped or "convex / I"-shaped. The locking mechanism 9 is a locking bolt, one end of which passes through the connecting plate 4 and is threadedly connected to the connecting plate 4. Specifically, the two sides of the connecting plate 4 are formed as bevels, and the width of the connecting plate 4 gradually increases from one side of the rotating shaft 3 to the other side; correspondingly, the distance between the two side walls of the slide groove 8 gradually increases from the groove opening to the groove bottom, forming a dovetail groove. Thus, during locking and fixing, rotating the locking bolt causes the connecting plate 4 to move towards the groove opening of the slide groove 8 after the locking bolt contacts the support seat 1, until the two bevels of the connecting plate 4 are tightly attached to the two side walls of the slide groove 8, achieving locking and positioning; thus, the rotating shaft 3 mechanism and the support seat 1 are in a relatively fixed state.

[0043] The clamping and positioning seat is installed on the other side of the support base 1, and includes a horizontally arranged base 10. Specifically, the side of the support base 1 where the clamping and positioning seat is installed has a boss 17, and the base 10 of the clamping and positioning seat is fixedly connected to the boss 17. As one embodiment, the boss 17 is circular, and the side of the base 10 connected to the boss 17 has a U-shaped notch. The base 10 is engaged with the lower part of the boss 17 through the U-shaped notch and is welded to the boss 17 for fixation. The side of the boss 17 facing away from the support base 1 is located in a vertical plane to facilitate axial positioning of the shaft of the object being tested.

[0044] A V-shaped groove is provided on the upper side of the base 10. The length of the V-shaped groove is perpendicular to the support 1, and its two ends pass through both sides of the base 10. The straight line of the bottom of the V-shaped groove is in the same vertical plane as the axis of the rotating shaft 3. A positioning pin 11 is provided on the lower side of the base 10. The positioning pin 11 is vertically arranged, and its upper end passes through the base 10 and extends into the V-shaped groove. The upper end of the positioning pin 11 is tapered. The positioning pin 11 is threadedly connected to the base 10, and its axis is in the same vertical plane as the straight line of the bottom of the V-shaped groove. The tapered upper end of the positioning pin 11 can be used for measuring shafts with different modules. The positioning pin 11 is threadedly connected to the base 10. By rotating the positioning pin 11, its length extending into the V-shaped groove can be adjusted, so that the positioning pin 11 makes contact with the spline of the measuring shaft. This achieves circumferential rotational positioning of the measuring shaft with different spline parameters.

[0045] A clamping plate 12 is horizontally positioned above the base 10. This clamping plate 12 is connected to the base 10 via several vertically positioned guide posts 13, and can move freely along the guide posts 13. By sliding up and down along the guide posts 13, the clamping plate 12 can accommodate radial clamping and positioning of shafts of different diameters, while also facilitating quick assembly and disassembly of the shafts. A limiting platform is provided at the upper end of each guide post 13 to prevent the clamping plate 12 from detaching from the guide post 13 during assembly or disassembly. During processing, four guide posts 13 are used, distributed near the four corners of the base 10. Through holes are provided on the clamping plate 12 corresponding to the positions of the guide posts 13, and the clamping plate 12 is connected to the guide posts 13 through these through holes with a clearance fit. A second scale line layer 16 is vertically positioned on the side wall of one of the guide posts 13, and the second scale line layer 16 corresponds to the 0 scale line of the first scale line layer 15. The 0-degree mark is obtained by placing a reference axis of known radius into the V-groove and clamping it with the clamping plate 12. By setting a scale line layer on the guide post 13, the scale value on the upper or lower surface of the clamping plate 12 can be read quickly and accurately, which facilitates the calculation of the adjustment distance of the axis of rotation of the shaft 3, so as to quickly adjust the position of the shaft 3 mechanism, so that the axis of rotation of the shaft 3 coincides with the axis of the shaft of the object being tested, thereby improving the accuracy of the starting torque inspection.

[0046] Wherein, the position of the rotating shaft 3 mechanism and the axis of the object being measured satisfy the following:

[0047]

[0048] Where: ΔO is the height difference between the axis of the measured object and the reference axis; β is the angle between the side of the V-groove and the vertical plane of the straight line passing through the bottom of the V-groove; ΔH is the height difference between the surfaces of the clamping plate 12. In this scheme, the setting of the functional relationship between the adjustment mechanism of the rotating shaft 3 and the axis of the measured object to the coaxial state is explained as follows: The two sides (V-shaped surfaces) of the V-groove on the base 10 are symmetrically distributed on both sides of the vertical plane of the straight line passing through the bottom of the V-groove, to ensure that the axis of the measured object with different diameters only moves and changes on the vertical plane. The angle β between the V-shaped surface and the vertical plane is any angle greater than 0° and less than 90°; this scheme preferably sets β to between 30° and 60°. When setting the scale line layer, it is necessary to first calibrate a reference zero-position axis position O, i.e., the position of the 0 scale line; the value of the reference diameter r0 can be determined by the user according to the diameter distribution of the measured object. The specific adjustment process during use is as follows:

[0049] like Figure 6 As shown, when the diameter r of the object being measured x When the diameter is greater than the reference diameter r0, the height difference ΔO between its axis position O1 and the reference axis position O is the distance the axis changes in space, which is the distance that the rotating shaft 3 mechanism needs to move upward on the support 1 for adjustment. The relationship is as follows: When the diameter r of the object being measured x When the diameter is smaller than the reference diameter r0, the height difference ΔO between its axis position O2 and the reference axis position O is the distance the axis changes in space, which is the distance that the rotating shaft 3 mechanism needs to move downward on the support 1 for adjustment. The relationship is as follows: However, ΔO cannot be read directly. What can be read directly through the second scale layer 16 is the movement distance ΔH of the surface (upper or lower surface) of the clamping plate 12. ΔH is composed of the axial displacement plus the increase in radius, with the relationship ΔH = ΔO + r. x1 -r0; or the relation ΔH=ΔO+r x2 -r0, at this point ΔO and ΔH are negative; therefore, by combining the equations, we can obtain the following relational formula applicable to the axes of measured objects of different sizes. Users can obtain the distance ΔO required to keep the rotating shaft 3 and the axis of the object being measured coaxial by reading ΔH displayed on the second scale layer 16.

[0050] The clamping mechanism 2 is mounted on the upper side of the support base 1. It has a pressure head 14, which is located directly above the clamping plate 12. The clamping mechanism 2 can apply a downward force to the clamping plate 12. The clamping mechanism 2 is a mature prior art, such as the clamp disclosed in patent document CN 208458959 U. In one embodiment, it includes a pressure rod 18 and a support 19. The support 19 is connected to the support base 1 via a clamping mounting base 20. The length direction of the pressure rod 18 is consistent with the length direction of the rotating shaft 3, and its middle part is rotatably connected to the support 19. By turning the end of the pressure rod 18 away from the pressure head 14 (pressure handle / wrench), the pressure head 14 can be quickly pressed down, causing the clamping plate 12 to clamp the shaft of the object to be tested in conjunction with the base 10. The pressure head 14 is connected to the end of the pressure rod 18 located directly above the clamping plate 12 via a vertically arranged connecting rod 21. The connecting rod 21 is connected to the pressure rod 18 via a connector, and the connecting rod 21 and the connector are threaded together, allowing the connecting rod 21 to move up and down. At the same time, the connector is slidably connected to the pressure rod 18, and a locking member is provided between the connector and the pressure rod 18, allowing the connector to move and lock along the length of the pressure rod 18. This allows for initial position adjustment in all directions according to the clamping requirements of the measured object shafts of different lengths and diameters.

[0051] A grip handle 22 is also provided on the support base 1, which extends through both sides of the support base 1; making it easy to pick up and move this detection device.

[0052] During use, the input / output shaft of the gear shaft system under test is placed in the V-groove on the base 10; then the pin is rotated so that the tapered end of the pin is inserted into the spline groove of the input / output shaft; the input / output shaft is then clamped by the cooperation of the pressure head 14 and the clamping plate 12; finally, the drive handle 6 is rotated to apply torque to the detection shaft 5. The detection shaft 5 transmits the torque to the detection positioning seat through the connecting bushing 7 and the rotating shaft 3, and then to the input / output shaft of the gear shaft system under test. The torque is continuously applied through the drive handle 6 until the detection positioning seat and the input / output shaft rotate as a whole, indicating that the entire gear shaft system under test is about to start. At this time, the torque applied through the drive handle 6 is the starting torque of the gear shaft system under test, which is output and displayed by the torque testing mechanism.

[0053] The solution disclosed in this invention has a simple structure, is easy to disassemble, has good compatibility, and low manufacturing cost. Through the cooperation of the clamping positioning seat and the clamping mechanism 2, shafts of different diameters can be inspected. Even when the design parameters of the object being tested are unknown, it can be automatically installed and adjusted according to the shaft diameter and spline parameters of the gear shaft system being tested, without changing tooling or fixtures, effectively clamping the shaft of the object being tested. It solves the problem of being unable to measure the starting torque of competitors due to the lack of suitable dedicated tooling when benchmarking against them. The starting torque of various gear shaft systems within a certain range can be measured. During the testing process, by measuring the diameter difference of different objects being tested, and then adjusting the position of the rotating shaft 3 mechanism accordingly, the rotating shaft 3 is quickly made coaxial with the object being tested, thus enabling rapid detection of starting torque. The operation is simple, the detection accuracy is high, the work efficiency is high, and the versatility is high. Especially when conducting new product development and benchmarking against competitors to measure the starting torque, the data for benchmarking development work is more complete and reliable.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit the technical solutions. Those skilled in the art should understand that any modifications or equivalent substitutions to the technical solutions of the present invention without departing from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. An adaptive detection device for the starting torque of a gear shaft system, characterized in that: Includes a torque testing mechanism, a rotating shaft mechanism, a support base, a clamping and positioning base, and a pressing mechanism; The rotating shaft mechanism includes a rotating shaft and a connecting plate. One end of the rotating shaft is fixedly connected to the connecting plate, and the axis of the rotating shaft is perpendicular to the connecting plate. The torque testing mechanism has a detection shaft and a drive handle. The detection shaft is connected to the other end of the rotating shaft through a connecting sleeve. A vertical groove is provided on one side of the support base. The connecting plate of the rotating shaft mechanism is located in the groove and is slidably connected to the support base. A locking mechanism is provided between the connecting plate and the support base. The clamping and positioning seat is installed on the other side of the support base. It includes a horizontally arranged base with a V-shaped groove on the upper side of the base. The length of the V-shaped groove is perpendicular to the support base, and its two ends pass through both sides of the base. The straight line of the bottom of the V-shaped groove is in the same vertical plane as the axis of rotation. A positioning pin is provided on the lower side of the base. The positioning pin is vertically arranged, and its upper end passes through the base and extends into the V-shaped groove. The upper end of the positioning pin is tapered. The positioning pin is threadedly connected to the base, and its axis is in the same vertical plane as the straight line of the bottom of the V-shaped groove. A clamping plate is horizontally arranged above the base. The clamping plate is connected to the base through several vertically arranged guide posts, and the clamping plate can move freely along the guide posts. The clamping mechanism is installed on the upper side of the support base. It has a pressure head located directly above the clamping plate. The clamping mechanism can apply a downward force to the clamping plate.

2. The adaptive detection device for starting torque of a gear shaft system according to claim 1, characterized in that: A first scale line layer is vertically provided on one side of the slide groove of the support base, and the first scale line layer is close to one side edge of the slide groove; a mark line is horizontally provided on the connecting plate, and the mark line is located on the same horizontal plane as the axis of rotation.

3. The adaptive detection device for starting torque of a gear shaft system according to claim 2, characterized in that: On the side wall of one of the guide pillars, a second scale line layer is vertically provided, and the second scale line layer corresponds to the 0 scale line of the first scale line layer.

4. The adaptive detection device for starting torque of a gear shaft system according to claim 3, characterized in that: The 0 mark is obtained by placing a reference axis of known radius into a V-groove and clamping it with a clamping plate.

5. The adaptive detection device for starting torque of a gear shaft system according to claim 4, characterized in that: The position of the rotating shaft mechanism and the axis of the measured object satisfy the following: Where: ΔO is the height difference between the axis of the measured object and the reference axis; β is the angle between the side of the V-groove and the vertical plane of the straight line passing through the bottom of the V-groove; ΔH is the height difference between the surfaces of the clamping plate.

6. The adaptive detection device for starting torque of a gear shaft system according to claim 1, characterized in that: The cross-section of the groove is dovetail-shaped or "convex"-shaped; correspondingly, the cross-section of the connecting plate is also dovetail-shaped or "convex / one"-shaped; the locking mechanism is a locking bolt, one end of which passes through the connecting plate and is threadedly connected to the connecting plate.

7. The adaptive detection device for starting torque of a gear shaft system according to claim 1, characterized in that: The end of the detection shaft connected to the connecting sleeve has a connecting post with a polygonal cross-section. The connecting sleeve has a connecting hole corresponding to the connecting shaft. The detection shaft and the connecting sleeve are detachably connected by the cooperation of the connecting shaft and the connecting hole. The rotating shaft is fixedly connected to the connecting sleeve.

8. The adaptive detection device for starting torque of a gear shaft system according to claim 1, characterized in that: The support base has a boss on one side where the clamping positioning seat is installed, and the base of the clamping positioning seat is fixedly connected to the boss.

9. The adaptive detection device for starting torque of a gear shaft system according to claim 1, characterized in that: The clamping mechanism includes a pressure rod and a support; the support is connected to the support base through a clamping mounting seat, the length direction of the pressure rod is consistent with the length direction of the rotating shaft, and its middle part is rotatably connected to the support; the pressure head is connected to one end of the pressure rod through a vertically arranged connecting rod.

10. The adaptive detection device for starting torque of a gear shaft system according to claim 1, characterized in that: A grip handle is also provided on the support base.

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