Toothed plate fatigue test device

Abstract

The invention discloses a toothed plate fatigue test device. The toothed plate fatigue test device comprises a base station; the driving part is mounted on the base table and is used for being in dynamic coupling connection with the toothed plate so as to drive the toothed plate to move in the first direction; the rotating part is rotatably mounted on the base station, a first end of the rotating part is provided with a plurality of tooth parts used for being matched with a to-be-tested tooth surface of the toothed plate, and the plurality of tooth parts can be driven by the toothed plate to rotate around a rotating axis; the driven part is rotationally connected with the second end of the rotating part, the joint of the driven part and the rotating part and the rotating axis are arranged in a staggered mode, the driven part is driven by the rotating part to move in the second direction, and an included angle is formed between the first direction and the second direction; the sensor is installed on the base table and used for detecting the motion state of the driven part. According to the fatigue test device, the real working condition of the toothed plate in actual use can be simulated, the fatigue performance of the toothed plate in the actual working process is effectively tested, related data are collected through the sensor, and follow-up optimization is facilitated.

Description

Technical Field

[0001] The present application belongs to the technical field of tooth plate fatigue testing, and in particular, relates to a tooth plate fatigue testing device. Background Art

[0002] Take the combustion gear plate part of the variable compression ratio engine as an example. This part belongs to the high-speed reciprocating motion mechanism part, which has high requirements for the fatigue performance of the part. The shape and structure of this gear plate part are complex, and the actual working conditions are complex. It is difficult for traditional fatigue test equipment to perform accurate fatigue tests. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a tooth plate fatigue test device, which can simulate the actual working conditions of the tooth plate in actual use, effectively test the fatigue performance of the tooth plate in the actual working process, and collect relevant data through sensors to facilitate subsequent optimization.

[0004] The present application provides a tooth plate fatigue testing device, comprising:

[0005] abutment;

[0006] A driving member, mounted on the base and used for being coupled to the tooth plate with power to drive the tooth plate to move along a first direction;

[0007] A rotating member rotatably mounted on the base, wherein a first end of the rotating member is provided with a plurality of teeth for cooperating with the tooth surface to be tested of the tooth plate, wherein the plurality of teeth are located on a same circle with the rotation axis of the rotating member as the center, and the plurality of teeth can rotate around the rotation axis under the drive of the tooth plate;

[0008] A driven member is rotatably connected to the second end of the rotating member, the connection between the driven member and the rotating member is staggered with the rotating axis, the driven member moves along a second direction under the drive of the rotating member, and the first direction and the second direction are set at an angle;

[0009] A sensor is mounted on the base and is used to detect the motion state of the driven member.

[0010] According to the tooth plate fatigue test device of the present application, the tooth plate is driven by a driving member simulating the load in actual working conditions, a fatigue test is performed on the tooth surface to be tested by cooperating with the rotating member, and a load is applied to the tooth plate by the driven member cooperating with the rotating member, thereby effectively testing the fatigue performance of the tooth plate in the actual working process, and the motion state data of the driven member is collected by a sensor, thereby obtaining the fatigue performance parameters of the tooth plate during the fatigue test, which is convenient for subsequent optimization.

[0011] According to one embodiment of the present application, the first end of the driven member in the second direction is connected to the second end of the rotating member;

[0012] The base is provided with a guide groove, the second end of the follower in the second direction can be slidably disposed in the guide groove, and the sensor is installed in the guide groove.

[0013] According to an embodiment of the present application, the sensor includes a pressure sensor, the second end of the follower is provided with an extension portion extending laterally thereof, and the pressure sensor is provided on a side of the extension portion facing the first end of the follower.

[0014] According to one embodiment of the present application, the sensor includes a displacement sensor, which is arranged in the guide groove and located on the side of the second end of the follower away from the first end of the follower, and the displacement sensor abuts against the second end of the follower.

[0015] According to an embodiment of the present application, a hook is provided at the second end of the rotating member, and a movably arranged movable shaft is provided at the first end of the driven member, the axis of the movable shaft is parallel to the rotating axis, and the movable shaft is fixedly connected to the hook.

[0016] According to an embodiment of the present application, a slide groove is provided in the first end of the driven member, a slidable bearing is provided in the slide groove, and the movable shaft is connected to the inner ring of the bearing;

[0017] Wherein, the extending direction of the slide groove is arranged at an angle with the second direction.

[0018] According to an embodiment of the present application, the hook portion is provided with a first connecting hole, the movable shaft is provided with a second connecting hole, and the movable shaft is fixedly connected to the hook portion via a connecting member passing through the second connecting hole and the first connecting hole.

[0019] According to an embodiment of the present application, a limiting groove is provided in the middle of the rotating member, and at least a portion of the first end of the follower in the second direction is located in the limiting groove and is rotatably connected to the second end of the rotating member.

[0020] According to an embodiment of the present application, the tooth portion is in point contact with the tooth surface to be tested of the tooth plate.

[0021] According to one embodiment of the present application, the tooth plate fatigue testing device further includes a mating component, which is arranged on a side of the tooth plate away from the tooth surface to be tested and meshes with the non-test tooth surface of the tooth plate to move the tooth plate in a first direction.

[0022] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 It is a structural schematic diagram of a tooth plate fatigue testing device provided in an embodiment of the present application;

[0025] Figure 2 Another structural schematic diagram of the tooth plate fatigue test device provided in the embodiment of the present application is

[0026] Figure 3 is a schematic diagram of the structure of a rotating member provided in an embodiment of the present application;

[0027] Figure 4 It is a schematic diagram of the partial structure of the meshing of the tooth portion and the tooth plate provided in an embodiment of the present application.

[0028] Reference numerals:

[0029] 1. Tooth plate fatigue test device; 11. Base; 111. Guide groove; 12. Driving member; 13. Rotating member; 131. Tooth; 132. Limiting groove; 133. Rotating shaft; 134. Hook; 135. First connecting hole; 14. Follower; 141. Extension; 142. Bearing; 143. Active shaft; 144. Second connecting hole; 15. Pressure sensor; 16. Displacement sensor; 17. Matching assembly;

[0030] 2. Tooth plate. DETAILED DESCRIPTION

[0031] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0032] Take the combustion gear plate part of the variable compression ratio engine as an example. This part belongs to the high-speed reciprocating motion mechanism part, which has high requirements for the fatigue performance of the part. The shape and structure of this gear plate part are complex, and the actual working conditions are complex. It is difficult for traditional fatigue test equipment to perform accurate fatigue tests.

[0033] Based on the above considerations, the present application proposes a tooth plate fatigue testing device, which can simulate the real working conditions of the tooth plate in actual use, effectively test the fatigue performance of the tooth plate in the actual working process, and collect relevant data through sensors to facilitate subsequent optimization.

[0034] Reference below Figure 1-Figure 4 A tooth plate fatigue testing device according to an embodiment of the present application is described.

[0035] See also Figure 1 , Figure 2 and Figure 3 The tooth plate fatigue testing device 1 of the embodiment of the present application includes a base 11, a driving member 12, a rotating member 13, a driven member 14 and a sensor.

[0036] The base 11 provides stable support to ensure the stability of the entire device and achieve accurate installation and positioning of the driving member 12, the rotating member 13, the driven member 14 and the sensor. The bottom of the base 11 can be provided with a shock-absorbing material or structure to reduce vibration interference during the test.

[0037] The driving member 12 is mounted on the base 11 and is used for being power-coupled with the tooth plate 2 to drive the tooth plate 2 to move along a first direction.

[0038] The driving member 12 simulates the load in the actual working condition to ensure the simulation degree of the test. The driving member 12 is connected to the upper end of the tooth plate 2 by power coupling. It can be understood that the movement of the tooth plate 2 in the first direction when it is installed on the fatigue test device can be equivalent to the movement of the tooth plate 2 in the working direction in the actual working condition.

[0039] The driving member 12 may be a servo motor or a stepping motor to achieve fine adjustment of speed and torque.

[0040] The rotating member 13 can be rotatably mounted on the base 11, and the first end of the rotating member 13 is provided with a plurality of tooth portions 131 for cooperating with the tooth surface to be tested of the tooth plate 2, and the plurality of tooth portions 131 are located on the same circle with the rotation axis of the rotating member 13 as the center, and the plurality of tooth portions 131 can rotate around the rotation axis under the drive of the tooth plate 2.

[0041] The rotating member 13 is rotatably mounted on the base 11 around its rotation axis. By providing a plurality of teeth 131 at the first end of the rotating member 13 to mesh with a plurality of teeth on the tooth surface to be tested of the tooth plate 2, the tooth plate 2 can drive the rotating member 13 to rotate when it moves, thereby simulating the stress state of the tooth plate 2 in actual working conditions. Through the interaction between the teeth 131 and the tooth plate 2, an accurate test of the fatigue state of the tooth plate 2 is achieved. Among them, the plurality of teeth 131 are located on the same circle with the rotation axis of the rotating member 13 as the center, ensuring that the teeth 131 and the tooth plate 2 can be in stable contact during the rotation of the rotating member 13.

[0042] The number of the tooth portions 131 may be determined according to the tooth surface to be tested. For example, the tooth surface to be tested of the tooth plate 2 is provided with four tooth grooves, and the tooth portions 131 may be provided with four corresponding ones.

[0043] The follower 14 is rotatably connected to the second end of the rotating member 13, and the connection between the follower 14 and the rotating member 13 is offset from the rotation axis. The follower 14 moves along the second direction under the drive of the rotating member 13, and the first direction and the second direction are set at an angle.

[0044] The driven member 14 is rotatably matched with the second end of the rotating member 13, so that when the rotating member 13 rotates, the driven member 14 can be driven to move, and the rotary motion is converted into a linear motion along the second direction. By staggering the connection position between the driven member 14 and the rotating member 13 and the rotation axis, an asymmetric load is applied to the tooth plate 2, which is closer to the actual working condition. The angle between the first direction and the second direction is not limited here and is set according to actual design requirements.

[0045] The sensor is mounted on the base 11 and is used to detect the motion state of the follower 14 .

[0046] By setting up sensors, the motion state of the driven member 14 is collected in real time, and the fatigue performance parameters of the tooth plate 2 are monitored, providing accurate data support for subsequent analysis and optimization.

[0047] In actual implementation, the driving member 12 applies a driving load to the tooth plate 2, driving the tooth plate 2 to move in a first direction, and the tooth plate 2 drives the rotating member 13 to rotate. The tooth portion 131 on the rotating member 13 engages with the tooth surface to be tested of the tooth plate 2, thereby performing a fatigue test on the tooth surface to be tested. When the rotating member 13 rotates, it drives the driven member 14 to move in a second direction. The sensor collects the motion state data of the driven member 14, and then can obtain the fatigue performance of the tooth plate 2 by calculation, providing a strong testing and analysis basis for the optimization of the material and structure of the tooth plate 2.

[0048] According to the tooth plate fatigue test device 1 of the embodiment of the present application, the tooth plate 2 is driven by the driving member 12 to simulate the load in the actual working condition, the tooth surface to be tested is cooperated with the rotating member 13 to perform a fatigue test on the tooth surface to be tested, and the load is applied to the tooth plate 2 by the follower 14 cooperating with the rotating member 13, so as to effectively test the fatigue performance of the tooth plate 2 in the actual working process, and the motion state data of the follower 14 is collected by the sensor, so as to obtain the fatigue performance parameters of the tooth plate 2 during the fatigue test, so as to facilitate subsequent optimization.

[0049] See also Figure 1 , Figure 2 and Figure 3 According to some embodiments of the present application, the first end of the follower 14 in the second direction can be connected to the second end of the rotating member 13; a guide groove 111 can be provided on the base 11, and the second end of the follower 14 in the second direction can be slidably disposed in the guide groove 111, and the sensor can be installed in the guide groove 111.

[0050] The first end of the follower 14 in the second direction is connected to the second end of the rotating member 13, ensuring that the follower 14 can accurately receive and respond to the force transmitted by the rotating member 13, thereby achieving precise load application to the toothed plate 2. Through direct connection, energy loss and motion errors in the transmission process are reduced, thereby improving the accuracy of the test.

[0051] By setting a guide groove 111 on the base 11 and slidably setting the second end of the follower 14 in the second direction in the guide groove 111, the guide groove 111 limits the movement direction of the follower 14, ensuring that it slides stably along a preset trajectory to avoid deviation. By limiting the freedom of movement of the follower 14, lateral displacement and shaking are reduced, thereby improving the accuracy of data acquisition.

[0052] In one example, the guide groove 111 extends along the second direction, wherein the guide groove 111 may be a linear groove.

[0053] In another example, the guide groove 111 may be a curved groove to meet different test requirements.

[0054] By installing the sensor in the guide slot 111, the motion state of the follower 14, such as displacement, velocity, acceleration and other parameters, can be accurately captured, providing a direct basis for data analysis. The design integrated in the guide slot 111 reduces the wiring complexity of the sensor and the data acquisition system, and improves the compactness and reliability of the device.

[0055] In some embodiments, the sensor may be a wireless sensor, which further simplifies the device layout and improves flexibility.

[0056] In some embodiments, the sensors can be installed on the guide groove 111 from the outside to the inside, so as to facilitate the replacement and adjustment of the sensors, facilitate maintenance and upgrading, and adapt to the test requirements of different precision requirements. Multiple sensor installation positions can also be set to adjust the sensor position according to the needs to collect the dynamic characteristics of the follower 14 at different stages.

[0057] See also Figure 1 and Figure 2 According to some embodiments of the present application, the sensor may include a pressure sensor 15, the second end of the follower 14 may be provided with an extension portion 141 extending laterally thereof, and the pressure sensor 15 may be provided on a side of the extension portion 141 toward the first end of the follower 14.

[0058] In this embodiment, the second end of the follower 14 can be arranged in a rod shape, the extension portion 141 is arranged on the circumferential side of the follower 14 and extends laterally, and the pressure sensor 15 is arranged on the side of the extension portion 141 facing the first end of the follower 14, so that the extension portion 141 can directly contact the pressure sensor 15 when the follower 14 moves. The pressure sensor 15 directly measures the pressure exerted on the follower 14 during the movement, and provides direct force value data for evaluating the fatigue performance of the tooth plate 2.

[0059] In one example, the extension 141 may be a circular structure, at least part of the extension 141 is disposed outside the second end of the follower 14 and is fixedly connected to the follower 14, and the outer periphery of the extension 141 may contact the inside of the guide groove 111 to form a piston-like structure to effectively restrict the moving direction of the follower 14. The extension 141 may be made of a wear-resistant material, and the follower 14 is not directly involved in the friction by contacting the extension 141 with the guide groove 111, thereby improving the durability of the device. The extension 141 may be fixed to the second end of the follower 14 by screws or bolts.

[0060] In another example, the extension portion 141 may be a bump that is directly opposite to the location where the pressure sensor 15 is disposed, so that the extension portion 141 is in contact with the pressure sensor 15 .

[0061] In some embodiments, one end of the guide groove 111 in the second direction is provided with an opening for the follower 14 to pass through. The pressure sensor 15 can be arranged at the end of the guide groove 111 with the opening and extend into the guide groove 111 to facilitate contact with the extension portion 141.

[0062] See also Figure 1According to some embodiments of the present application, the sensor may include a displacement sensor 16, which may be disposed in the guide groove 111 and may be located on a side of the second end of the follower 14 away from the first end of the follower 14, and the displacement sensor 16 may abut against the second end of the follower 14.

[0063] The displacement sensor 16 can directly measure the displacement change of the follower 14, provide key dynamic displacement data for the fatigue performance test of the tooth plate 2, and monitor its movement state in real time during the fatigue test through direct contact with the follower 14 to ensure the timeliness and reliability of the data.

[0064] A rigid or elastic contact mode can be adopted between the sensor and the follower 14 to ensure the stability of the contact and reduce wear.

[0065] Exemplarily, the displacement sensor 16 may be a high-precision, high-response speed model to accommodate small displacement changes of the follower 14 during high-speed movement.

[0066] See also Figure 2 and Figure 3 According to some embodiments of the present application, a hook portion 134 is provided at the second end of the rotating member 13, and a movable shaft 143 is movably provided at the first end of the driven member 14, the axis of the movable shaft 143 is parallel to the rotating axis, and the movable shaft 143 is fixedly connected to the hook portion 134.

[0067] The movable shaft 143 is fixedly connected to the hook portion 134, and the axis of the movable shaft 143 is parallel to the rotation axis, so that when the rotating member 13 rotates, the movable shaft 143 can be driven to rotate around the rotation axis, and the movable shaft 143 remains parallel to the rotation axis, thereby improving the stability of the operation of the movable shaft 143. By movably setting the movable shaft 143 at the first end of the driven member 14, when the movable shaft 143 drives the driven member 14 to move, the movable shaft 143 can be adjusted with a certain degree of freedom relative to the driven member 14, so that the driven member 14 can move stably in the second direction, avoiding interference between the second end of the driven member 14 and the guide groove 111.

[0068] According to some embodiments of the present application, a slide groove may be provided in the first end of the follower 14, a slidable bearing 142 may be provided in the slide groove, and the movable shaft 143 is connected to the inner ring of the bearing 142; wherein the extension direction of the slide groove is set at an angle to the second direction.

[0069] By providing the bearing 142, the driving force of the rotating member 13 can be stably transmitted to the driven member 14 through the movable shaft 143 and the bearing 142, thereby improving the installation stability of the movable shaft 143. The type of the bearing 142 is not limited here, and can be a cylindrical roller bearing 142, a tapered roller bearing 142, or a spherical roller bearing 142, etc. It is preferable to select a bearing 142 type with high precision, low friction, and suitable for bearing complex loads.

[0070] By setting a slide groove and making the outer ring of the bearing 142 movably installed in the slide groove, the movable shaft 143 can rotate relative to the driven member 14 and can also move relative to the driven member 14 in the radial direction of the movable shaft 143 to fine-tune the position. By setting the extension direction of the slide groove to be at an angle to the second direction, the influence of the movable shaft 143 on the linear motion of the driven member 14 when performing circular motion can be reduced.

[0071] The angle between the extension direction of the chute and the second direction is not limited here, and the angle of the chute should be accurately designed according to the direction and magnitude of the oblique force that the follower 14 may bear in the test to ensure smooth movement. For example, the angle between the extension direction of the chute and the second direction can be 90°.

[0072] See also Figure 2 and Figure 3 According to some embodiments of the present application, the hook portion 134 is provided with a first connecting hole 135, the movable shaft 143 is provided with a second connecting hole 144, and the movable shaft 143 is fixedly connected to the hook portion 134 via a connecting piece passing through the second connecting hole 144 and the first connecting hole 135.

[0073] By cooperating with the connecting hole and the connecting piece, the hook 134 and the movable shaft 143 are accurately aligned and fixed, thereby improving the stability and reliability of the connection. The connecting hole makes the assembly process more intuitive and simple, reduces the dependence on assembly accuracy, and improves assembly efficiency.

[0074] Exemplarily, the first connecting hole 135 may be a threaded hole, the second connecting hole 144 may be a stepped hole, and the connecting member may be a bolt, which passes through the second connecting hole 144 and is threadably engaged with the first connecting hole 135 to achieve a fixed connection between the movable shaft 143 and the hook portion 134 .

[0075] See also Figure 2 and Figure 3 In some embodiments, the surface of the hook portion 134 used to connect with the movable shaft 143 is suitable for matching with the shape of the outer circumferential surface of the movable shaft 143 to ensure the stability of the connection between the hook portion 134 and the movable shaft 143.

[0076] Exemplarily, the movable shaft 143 may be cylindrical, the surface of the hook portion 134 used for connecting with the movable shaft 143 may be an arc surface, and the first connecting hole 135 is connected to the arc surface.

[0077] See also Figure 2 and Figure 3 According to some embodiments of the present application, a limiting groove 132 may be provided in the middle portion of the rotating member 13, and at least a portion of the first end of the follower 14 in the second direction is located in the limiting groove 132 and is rotatably connected to the second end of the rotating member 13.

[0078] A limiting groove 132 is provided in the middle of the rotating member 13. By allowing at least a portion of the first end of the follower 14 to extend into the limiting groove 132, a certain restraining effect is exerted on the first end of the follower 14 to ensure the accuracy of its motion trajectory and avoid unnecessary vibration or deviation.

[0079] The rotating member 13 further includes two rotating shafts 133 respectively arranged on both sides of the limiting groove 132 . The two rotating shafts 133 are coaxially arranged and rotatably mounted on the base 11 through bearings 142 , so that the rotating member 13 can rotate around the rotating shafts 133 .

[0080] Furthermore, two hook portions 134 are provided on both sides of the limiting groove 132, and the two hook portions 134 are respectively connected to the two rotating shafts 133, and the movable shaft 143 passes through the first end of the follower 14, so that the two ends of the movable shaft 143 are respectively fixedly connected to the two hook portions 134, thereby improving the stability of the connection of the movable shaft 143, and the two hook portions 134 can provide more stable force conduction performance, thereby improving the accuracy of the test.

[0081] See also Figure 4 According to some embodiments of the present application, the tooth portion 131 is in point contact with the tooth surface to be tested of the tooth plate 2 .

[0082] Point contact can control load distribution more accurately, simulate the complexity of tooth surface contact under actual working conditions, improve the accuracy of the test, and is closer to the tooth surface contact in actual applications, and can more realistically reflect the fatigue behavior of the tooth plate 2 during the force process.

[0083] See also Figure 1 and Figure 2 According to some embodiments of the present application, the tooth plate fatigue testing device 1 may further include a mating component 17, which is arranged on the side of the tooth plate 2 away from the tooth surface to be tested and meshes with the non-test tooth surface of the tooth plate 2 to make the tooth plate 2 move along the first direction.

[0084] It should be noted that both surfaces of the tooth plate 2 are provided with tooth surfaces, and the matching component 17 is provided to mesh with the non-test tooth surfaces, so as to more accurately control the movement direction and speed of the tooth plate 2, and ensure the stability and controllability of the test process. In addition, by meshing with the non-test tooth surfaces, the movement state of the tooth plate 2 in actual application can be more realistically simulated, thereby improving the accuracy and reliability of the test.

[0085] The matching component 17 may be a component that matches with the tooth plate 2 under actual working conditions.

[0086] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0087] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0088] In the description of this application, "first feature" or "second feature" may include one or more of the features.

[0089] In the description of the present application, “plurality” means two or more.

[0090] In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0091] In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0092] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0093] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A tooth plate fatigue testing device, characterized in that: include: abutment; A driving member, mounted on the base and used for being coupled to the tooth plate with power to drive the tooth plate to move along a first direction; A rotating member rotatably mounted on the base, wherein a first end of the rotating member is provided with a plurality of teeth for cooperating with the tooth surface to be tested of the tooth plate, wherein the plurality of teeth are located on a same circle with the rotation axis of the rotating member as the center, and the plurality of teeth can rotate around the rotation axis under the drive of the tooth plate; A driven member is rotatably connected to the second end of the rotating member, the connection between the driven member and the rotating member is staggered with the rotating axis, the driven member moves along a second direction under the drive of the rotating member, and the first direction and the second direction are set at an angle; A sensor is mounted on the base and is used to detect the motion state of the driven member.

2. The tooth plate fatigue testing device according to claim 1, characterized in that: The first end of the driven member in the second direction is connected to the second end of the rotating member; The base is provided with a guide groove, the second end of the follower in the second direction can be slidably disposed in the guide groove, and the sensor is installed in the guide groove.

3. The tooth plate fatigue testing device according to claim 2, characterized in that: The sensor comprises a pressure sensor. The second end of the follower is provided with an extension portion extending laterally thereof. The pressure sensor is arranged on a side of the extension portion facing the first end of the follower.

4. The tooth plate fatigue testing device according to claim 2, characterized in that: The sensor comprises a displacement sensor, which is arranged in the guide groove and located at a side of the second end of the follower away from the first end of the follower, and the displacement sensor abuts against the second end of the follower.

5. The tooth plate fatigue testing device according to claim 1, characterized in that: A hook is provided at the second end of the rotating member, and a movable shaft which can be movably arranged is provided at the first end of the driven member. The axis of the movable shaft is parallel to the rotating axis, and the movable shaft is fixedly connected to the hook.

6. The tooth plate fatigue testing device according to claim 5, characterized in that: A slide groove is provided in the first end of the driven member, a bearing slidably arranged in the slide groove, and the movable shaft is connected to the inner ring of the bearing; Wherein, the extending direction of the slide groove is arranged at an angle with the second direction.

7. The tooth plate fatigue testing device according to claim 5, characterized in that: The hook portion is provided with a first connecting hole, the movable shaft is provided with a second connecting hole, and the movable shaft is fixedly connected to the hook portion via a connecting piece passing through the second connecting hole and the first connecting hole.

8. The tooth plate fatigue testing device according to claim 6, characterized in that: A limiting groove is provided in the middle of the rotating member, and at least a part of the first end of the driven member in the second direction is located in the limiting groove and is rotatably connected to the second end of the rotating member.

9. The tooth plate fatigue testing device according to any one of claims 1 to 8, characterized in that: The tooth portion is in point contact with the tooth surface to be tested of the tooth plate.

10. The tooth plate fatigue testing device according to any one of claims 1 to 8, characterized in that: It also includes a matching component, which is arranged on a side of the tooth plate away from the tooth surface to be tested and meshes with the non-test tooth surface of the tooth plate to move the tooth plate along the first direction.

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