Self-adaptive detection device for starting torque of gear shaft system

Abstract

The invention discloses a self-adaptive detection device for starting torque of a gear shaft system. The self-adaptive detection device comprises a torque testing mechanism, a rotating shaft mechanism, a supporting seat, a clamping and positioning seat and a pressing mechanism, the rotating shaft mechanism comprises a rotating shaft and a connecting plate, and the torque testing mechanism is connected with the rotating shaft; a sliding groove is vertically formed in one side of the supporting seat, and the connecting plate is connected with the supporting seat in a sliding fit mode. The clamping and positioning seat comprises a horizontally arranged base, and a V-shaped groove is formed in the upper side of the base; a positioning pin is arranged on the lower side of the base; a clamping plate is horizontally arranged above the base; the pressing mechanism is installed on the upper side of the supporting base and provided with a pressing head, and the pressing head is located over the clamping plate. The gear shaft starting torque detection device is good in universality, can detect starting torque of different gear shafts, can rapidly detect the starting torque even if design parameters of a detected object are not clear, and is simple in operation process and good in detection effect.

Description

Technical Field

[0001] The present invention relates to the technical field of gear shaft system detection, and in particular to an adaptive detection device for the starting torque of a gear shaft system. Background Art

[0002] The driving system of a car is mainly composed of a power source, a gear system, etc. Among them, the gear system is a mechanical transmission device composed of gears, shafts, bearings, and differentials. Through the meshing of gears and the transmission of shafts, power conversion, speed change, and distribution are achieved. In the automotive industry, the performance of the gear system directly affects key indicators such as the car's power, fuel economy, driving comfort, and safety.

[0003] The starting torque refers to the torque that needs to be overcome when the gear system starts from a stationary state. It is mainly used to evaluate and characterize the gear system's: starting difficulty, the system's initial load, and the system's power transmission efficiency in the initial stage. Reasonable starting torque can ensure smoother transmission and conversion of power, which is of great significance to the smooth operation and performance of the entire transmission system. The detection of starting torque is to accurately understand the starting performance of the gear system. During the development and mass production of new products, it can be determined whether it meets the design and use requirements. In addition, in the benchmarking process, it is also necessary to test the starting torque of competitors to formulate design indicators for new products under development.

[0004] Common testing methods are mainly: torque sensor method, loading test method; the supporting tools are generally: torque wrench, high-precision torque sensor, dynamic torque tester. However, when developing new products and benchmarking against competing products, there is no test bench detection conditions, and manual tools are needed to quickly detect the starting torque. A combination of torque wrench plus spline sleeve tooling and fixture tooling is often used to detect the starting torque, which results in the following disadvantages during the detection process:

[0005] 1. The existing testing device needs to replace the spline sleeve tooling and fixture tooling for each product tested; the tool has poor versatility, low work efficiency and high management cost;

[0006] 2. When the design parameters of the object to be tested are not clear, the operation process of the existing detection device is complicated and the use cost is high;

[0007] 3. When benchmarking against competing products, it is often impossible to detect the starting torque due to the lack of suitable tooling; the use effect is poor. Summary of the invention

[0008] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to solve the problems of poor adaptability, complex 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. The device has good versatility and can detect the starting torque of different gear shafts. Even if the design parameters of the object to be tested are not clear, the device can quickly perform detection. The operation process is simple and the detection effect is good.

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

[0010] The rotating shaft mechanism comprises 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 comprises a detection shaft and a driving handle, the detection shaft is connected to the other end of the rotating shaft through a connecting sleeve; a sliding groove is vertically provided on one side of the support seat, the connecting plate of the rotating shaft mechanism is located in the sliding groove and is connected to the support seat in a sliding fit, and a locking mechanism is provided between the connecting plate and the support seat;

[0011] The clamping and positioning seat is installed on the other side of the support seat, which includes a horizontally arranged base, a V-shaped groove is arranged on the upper side of the base, the length direction of the V-shaped groove is perpendicular to the support seat, and its two ends pass through the two sides of the base, and the straight line where the bottom of the V-shaped groove is located and the axis line of the rotating shaft are located in the same vertical plane; a positioning pin is arranged on the lower side of the base, the positioning pin is vertically arranged, and its upper end passes through the base and then extends into the V-shaped groove, and the upper end of the positioning pin is conical; the positioning pin is connected to the base by threaded cooperation, and its axis line and the straight line where the bottom of the V-shaped groove is located are located in the same vertical plane; a clamping plate is horizontally arranged above the base, and the clamping plate is connected to the base through a number of vertically arranged guide columns, and the clamping plate can move freely along the guide columns;

[0012] The clamping mechanism is installed on the upper side of the support seat and has a pressure head, and the pressure head is 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 seat 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 and the axis line of the rotating shaft are located in the same horizontal plane.

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

[0015] Furthermore, the zero scale line is obtained by placing a reference shaft of known radius into the V-shaped groove and clamping it with a clamping plate and then calibrating it.

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

[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 of the clamping plate surface.

[0019] Furthermore, the cross-section of the slide 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 passes through the connecting plate and is connected to the connecting plate by threaded cooperation.

[0020] Furthermore, the end of the detection shaft connected to the connecting sleeve has a connecting column 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 between the connecting shaft and the connecting hole; the rotating shaft is fixedly connected to the connecting sleeve.

[0021] Furthermore, a side of the support seat on which the clamping and positioning seat is installed has a boss, and the base of the clamping and 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 seat through a clamping mounting seat, the length direction of the pressure rod is consistent with the length direction of the rotating shaft, and the 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 gripping handle is provided on the supporting seat.

[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 the clamping locating seat and the clamping mechanism, shafts of different diameters can be inspected, avoiding the problem of replacing the spline sleeve tooling and fixture tooling for each product inspection, thereby reducing the cost of tools and management costs.

[0026] 2. Even when the design parameters of the object to be measured are unclear, it is possible to install and adjust the shaft according to the shaft diameter and spline parameters of the gear shaft system to be measured without changing the tooling and fixtures, and effectively clamp the shaft of the object to be measured. This solves the problem of being unable to measure the starting torque of competing products due to the lack of suitable special tooling when benchmarking competing products. The starting torque of various gear shaft systems within a certain range can be measured.

[0027] 3. During the detection process, by measuring the diameter difference of different objects to be measured, and then adjusting the position of the rotating shaft mechanism accordingly, the rotating shaft and the object to be measured can be quickly made coaxial, so that the starting torque can be quickly detected. The operation is simple, the detection accuracy is high, the work efficiency is high, and the versatility is high. Especially when measuring the starting torque of new product development and benchmarking competing products, the data of benchmarking development work can be more complete and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0029] Figure 2 Based Figure 1 Side view of.

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

[0031] Figure 4 It is a schematic diagram of the connection structure of the rotating shaft, the connecting plate and the supporting seat in the present invention.

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

[0033] Figure 6 Schematic diagram of the axis height difference and surface height difference of objects with different diameters.

[0034] In the figure: 1-support seat, 2-clamping mechanism, 3-rotating shaft, 4-connecting plate, 5-detection shaft, 6-driving handle, 7-connecting sleeve, 8-slideway, 9-locking mechanism, 10-base, 11-locating pin, 12-clamping plate, 13-guide column, 14-pressing head, 15-first scale line layer, 16-second scale line layer, 17-boss, 18-pressing rod, 19-support, 20-clamping mounting seat, 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 to be measured, O is the axis center position at the reference zero position, O1 is the axis center position at the positive scale, O2 is the axis center position at the negative scale, ΔH is the surface height difference, ΔO is the axis center height difference, r0 is the shaft radius at the reference zero position, r1 is the shaft radius at the positive scale, and r2 is the shaft radius at the negative scale. DETAILED DESCRIPTION

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

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when used, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", etc. do not mean that the components are absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only 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 the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Example: See Figures 1 to 6, an adaptive detection device for the starting torque of a gear shaft system, comprising a torque testing mechanism, a rotating shaft 3 mechanism, a support seat 1, a clamping and positioning seat, and a clamping mechanism 2. The torque testing mechanism is a mature prior art, an existing product that can be directly purchased on the market, and has a detection shaft 5, a driving handle 6, and a housing, etc., wherein the driving handle 6 is fixedly connected to the housing; and the middle part of the driving handle 6 of the torque testing mechanism has a digital display dial for displaying and reading torque data. When the torque testing mechanism is working, after the housing (driving handle 6) is fixed, the torque applied when the detection shaft 5 is driven to rotate by an external force can be detected by the torque testing mechanism, and output and displayed through the digital display dial. In this scheme, a reverse use method is adopted, that is, when the detection shaft 5 is fixed, the driving handle 6 (housing) is rotated to 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 specific implementation, the end of the detection shaft 5 connected to the connecting sleeve 7 has a connecting column 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 column and the connecting hole are both rectangular, so as to facilitate snap-on connection and disassembly, and no self-rotation will occur during the transmission process, so that the measurement is more accurate.

[0041] A slide groove 8 is vertically arranged on one side of the support seat 1, and the connecting plate 4 of the rotating shaft 3 mechanism is located in the slide groove 8 and connected to the support seat 1 in a sliding manner, and a locking mechanism 9 is arranged between the connecting plate 4 and the support seat 1. During implementation, a first scale line layer 15 is vertically arranged on one side of the support seat 1 where the slide groove 8 is provided, and the first scale line layer 15 is close to one side edge of the slide groove 8; a marking line is horizontally arranged on the connecting plate 4, and the marking line is located in the same horizontal plane as the axis of the rotating shaft 3; and one end of the marking line close to the first scale line layer 15 passes through the side of the connecting plate 4 close to the scale line layer; thereby facilitating the rapid reading of the scale value of the current position of the axis of the rotating shaft 3 of the rotating shaft 3 mechanism.

[0042] During processing, the cross-section of the chute 8 is in the shape of a dovetail or a "convex" shape; correspondingly, the cross-section of the connecting plate 4 is also in the shape of a dovetail or a "convex / one" shape. The locking mechanism 9 is a locking bolt, and one end of the locking bolt penetrates through the connecting plate 4 and is threadedly connected to the connecting plate 4. Specifically, both sides of the connecting plate 4 are formed into inclined surfaces, 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 chute 8 gradually increases from the notch to the bottom of the chute, forming a dovetail groove. In this way, when locking and fixing, rotate the locking bolt. When the locking bolt contacts the support base 1, it drives the connecting plate 4 to move towards the notch of the chute 8 until the two inclined surfaces of the connecting plate 4 are in close contact with the two side walls of the chute 8, achieving locking and positioning; making the rotating shaft 3 mechanism and the support base 1 form 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. During specific implementation, one 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 a way, the boss 17 is circular, and one side of the base 10 connected to the boss 17 has a U-shaped notch. The base 10 is stuck at the lower part of the boss 17 through the U-shaped notch and is fixedly welded to the boss 17. Among them, the side surface of the boss 17 facing away from the support base 1 is located in a vertical plane to facilitate axial positioning of the axis of the object to be detected.

[0044] A V-shaped groove is provided on the upper side of the base 10. The length direction of the V-shaped groove is perpendicular to the support base 1, and both ends of the V-shaped groove penetrate through both sides of the base 10, and the straight line where the bottom of the V-shaped groove is located is in the same vertical plane as the axis line 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 penetrates through the base 10 and extends into the V-shaped groove, and the upper end of the positioning pin 11 is conical; the positioning pin 11 is threadedly connected to the base 10, and its axis line is in the same vertical plane as the straight line where the bottom of the V-shaped groove is located. The upper end of the positioning pin 11 is conical, which can be suitable for object shafts to be detected with different moduli; and the positioning pin 11 is threadedly connected to the base 10. By rotating the positioning pin 11, the length of the positioning pin 11 extending into the V-shaped groove can be adjusted, so that the positioning pin 11 contacts the spline of the object shaft to be detected; achieving circumferential rotation positioning of the object shaft to be detected with different spline parameters.

[0045] A clamping plate 12 is horizontally arranged above the base 10, and the clamping plate 12 is connected to the base 10 through several vertically arranged guide columns 13, and the clamping plate 12 can move freely along the guide columns 13; by sliding the clamping plate 12 up and down along the guide columns 13, it can adapt to the radial clamping and positioning of the measured object shaft with different diameters, and at the same time facilitate the rapid disassembly of the measured object shaft. A limit table is arranged at the upper end of the guide column 13 to prevent the clamping plate 12 from falling off the guide column 13 when disassembling the measured object shaft. During processing, there are 4 guide columns 13, which are distributed near the four corners of the base 10; a through hole is opened on the clamping plate 12 at the position corresponding to the guide column 13, and the clamping plate 12 is connected to the guide column 13 through the through hole with clearance fit. On the side wall of one of the guide columns 13, a second scale line layer 16 is vertically arranged, and the second scale line layer 16 corresponds to the 0 scale line of the first scale line layer 15. The 0 scale line is obtained by placing a reference shaft of known radius into the V-shaped groove and calibrating it after clamping it through the clamping plate 12. By setting a scale line layer on the guide column 13, the scale value on the upper or lower surface of the clamping plate 12 can be quickly and accurately read, so as to facilitate the calculation of the adjustment distance of the axis centerline of the rotating shaft 3, so as to quickly adjust the position of the rotating shaft 3 mechanism so that the axis centerline of the rotating shaft 3 coincides with the axis centerline of the shaft of the detected object, thereby improving the accuracy of the starting torque inspection.

[0046] Among them, the position of the rotating shaft 3 mechanism and the axis of the measured object satisfy:

[0047]

[0048] Wherein: 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 where the bottom of the V-groove is located; ΔH is the height difference of the clamping plate 12 surface. In this scheme, the setting of the functional relationship between the adjustment shaft 3 mechanism and the axis of the measured object to the coaxial state is described as follows: The two side surfaces (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 where the bottom of the V-groove is located, so as to ensure that the axis of the measured objects of different diameters will only move and change 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 axis position Ο, that is, the position of the 0 scale line; the numerical setting of the reference diameter r0 can be determined by the user according to the diameter distribution of the measured object. When in use, the specific adjustment process is as follows:

[0049] like Figure 6 As shown, when the diameter of the object being measured is r x When the diameter is greater than the reference diameter r0, the height difference ΔO between the axis position O1 and the reference axis position O is the distance of the axis change in space, that is, the distance that the shaft 3 mechanism needs to move upward on the support seat 1 for adjustment. When the diameter of the object being measured is r x When the diameter is smaller than the reference diameter r0, the height difference ΔO between the axis position O2 and the reference axis position O is the distance of the axis change in space, that is, the distance that the rotating shaft 3 mechanism needs to move downward on the support seat 1 for adjustment. However, ΔO cannot be read directly. What can be read directly through the second scale line layer 16 is the moving distance ΔH of the surface (upper or lower surface) of the clamping plate 12. The composition of ΔH is the axis displacement plus the increase in radius. There is a relationship ΔH=ΔO+r x1 -r0; or the relation ΔH=ΔO+r x2 -r0, at this time, ΔΟ and ΔH are negative values; therefore, the relationship can be applied to the axes of the measured objects of different sizes. The user can read the ΔH displayed on the second scale line layer 16 to obtain the distance ΔO required to adjust the rotating shaft 3 and the axis of the measured object to maintain a coaxial state.

[0050] The clamping mechanism 2 is installed on the upper side of the support seat 1, and has a pressure head 14, and the pressure head 14 is located directly above the clamping plate 12, and the clamping mechanism 2 can apply a downward force to the clamping plate 12. Among them, the clamping mechanism 2 is a mature prior art, such as the clamp in the patent document disclosed in CN 208458959 U. As an embodiment, it includes a pressure rod 18 and a support 19; the support 19 is connected to the support seat 1 through a clamping mounting seat 20, and the length direction of the pressure rod 18 is consistent with the length direction of the rotating shaft 3, and the middle part is rotatably connected to the support 19. By pulling 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, so that the clamping plate 12 cooperates with the base 10 to clamp the shaft of the object to be detected. The pressure head 14 is connected to one end of the pressure rod 18 located directly above the clamping plate 12 through a vertically arranged connecting rod 21, wherein the connecting rod 21 is connected to the pressure rod 18 through a connecting piece, and the connecting rod 21 is threadedly connected to the connecting piece so that the connecting rod 21 can move up and down. At the same time, the connecting piece is slidably connected to the pressure rod 18, and a locking piece is provided between the connecting piece and the pressure rod 18 so that the connecting piece can move and lock along the length direction of the pressure rod 18; the initial position can be adjusted up, down, left, and right according to the clamping requirements of the measured object shaft of different lengths and diameters.

[0051] A gripping handle 22 is also provided on the support base 1 , and the gripping handle 22 passes through both sides of the support base 1 , so as to facilitate taking and moving the detection device.

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

[0053] The scheme disclosed by the present invention has a simple structure, convenient disassembly, 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 to be measured are not clear, it can be installed and adjusted according to the shaft diameter and spline parameters of the gear shaft system to be measured, and the shaft of the object to be measured can be effectively clamped without changing the tooling and fixture; the problem that the starting torque of the competing product cannot be measured due to the lack of suitable special tooling when benchmarking competing products is solved; the starting torque of various gear shaft systems within a certain range can be measured. In the detection process, by measuring the diameter difference of different objects to be measured, and then adjusting the position of the rotating shaft 3 mechanism accordingly, the rotating shaft 3 and the object to be measured can be quickly coaxial, so that the starting torque can be quickly detected, the operation is simple, the detection accuracy is high, the work efficiency is high, and the versatility is high. Especially when measuring the starting torque of new product development and benchmarking competing products, the data of 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 solution of the present invention rather than to limit the technical solution. Those skilled in the art should understand that those modifications or equivalent substitutions of the technical solution of the present invention that do not depart from the purpose and scope of the technical solution should be included in the scope of the claims of the present invention.

Claims

1. 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 supporting seat, a clamping and positioning seat, and a clamping mechanism; The rotating shaft mechanism comprises 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 comprises a detection shaft and a driving handle, the detection shaft is connected to the other end of the rotating shaft through a connecting sleeve; a sliding groove is vertically provided on one side of the support seat, the connecting plate of the rotating shaft mechanism is located in the sliding groove and is connected to the support seat in a sliding fit, and a locking mechanism is provided between the connecting plate and the support seat; The clamping and positioning seat is installed on the other side of the support seat, which includes a horizontally arranged base, a V-shaped groove is arranged on the upper side of the base, the length direction of the V-shaped groove is perpendicular to the support seat, and its two ends pass through the two sides of the base, and the straight line where the bottom of the V-shaped groove is located and the axis line of the rotating shaft are located in the same vertical plane; a positioning pin is arranged on the lower side of the base, the positioning pin is vertically arranged, and its upper end passes through the base and then extends into the V-shaped groove, and the upper end of the positioning pin is conical; the positioning pin is connected to the base by threaded cooperation, and its axis line and the straight line where the bottom of the V-shaped groove is located are located in the same vertical plane; a clamping plate is horizontally arranged above the base, and the clamping plate is connected to the base through a number of vertically arranged guide columns, and the clamping plate can move freely along the guide columns; The clamping mechanism is installed on the upper side of the support seat and has a pressure head, and the pressure head is located directly above the clamping plate. The clamping mechanism can apply a downward force to the clamping plate.

2. The adaptive detection device for the starting torque of a gear shaft system according to claim 1, characterized in that: A first scale line layer is vertically arranged on one side of the support seat 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 arranged on the connecting plate, and the marking line and the axis line of the rotating shaft are located in the same horizontal plane.

3. The adaptive detection device for the starting torque of a gear shaft system according to claim 2, characterized in that: A second scale line layer is vertically arranged 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.

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

5. The adaptive detection device for the 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 object to be measured satisfy: 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 of the clamping plate surface.

6. The adaptive detection device for the starting torque of a gear shaft system according to claim 1, characterized in that: The cross section of the slide 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 passes through the connecting plate and is connected to the connecting plate by threaded cooperation.

7. The adaptive detection device for the 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 column 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 between the connecting shaft and the connecting hole; the rotating shaft is fixedly connected to the connecting sleeve.

8. The adaptive detection device for the starting torque of a gear shaft system according to claim 1, characterized in that: A side of the support seat for mounting the clamping and positioning seat is provided with a boss, and the base of the clamping and positioning seat is fixedly connected to the boss.

9. The adaptive detection device for the 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 seat through a clamping mounting seat, the length direction of the pressure rod is consistent with the length direction of the rotating shaft, and the 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 the starting torque of a gear shaft system according to claim 1, characterized in that: A holding handle is also provided on the supporting seat.

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