Torsion test device for clutch driven plate damper spring

Abstract

The utility model provides a torsion test device for a damper spring of a clutch driven plate. The device specifically comprises a first rack, a second rack, a torsion loading mechanism, a transmission mechanism and a clamping mechanism. The first rack and the second rack are oppositely arranged; the torsion loading mechanism is connected with the first rack; one end of the transmission mechanism is connected with the torsion loading mechanism, and the other end of the transmission mechanism is connected with a driven disc to be detected; the clamping mechanism is connected with the second rack, a clamping space is formed in the side, facing the transmission mechanism, of the clamping mechanism and used for clamping the driven disc, and the transmission mechanism is provided with a clamping position which moves towards the side of the clamping mechanism so as to clamp the driven disc; when the transmission mechanism is located at the clamping position, the torsion loading mechanism applies torque to the driven disc through the transmission mechanism to rotate so as to carry out reliability test on the driven disc and the damper spring located on the driven disc. The problem that the reliability of the clutch driven disc, especially the pre-damping spring, is not verified in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts testing equipment, and more specifically, to a torsion testing device for a clutch driven disc damping spring. Background Technology

[0002] In the field of automotive component testing, particularly reliability testing of clutch driven plates, there is a significant technological gap. Pre-damping spring breakage is one of the most common problems in clutch claims; however, existing bench testing standards do not cover this verification item. Industry-standard testing methods and equipment cannot comprehensively evaluate the performance of pre-damping springs, especially in terms of torsional stiffness and fatigue life under simulated real-world vehicle conditions. This results in the inability to conduct effective reliability testing of pre-damping springs in clutch driven plates during component development and verification phases, thereby increasing the risk of product failure in actual use.

[0003] Specifically, existing clutch driven plate testing devices often focus on verifying specific performance indicators, such as friction plate shedding performance, rather than providing a universal solution that can test both the torsional stiffness and fatigue life of the driven plate, as well as the characteristics of the pre-damping spring. Furthermore, these devices typically lack high-precision loading control, failing to accurately simulate parameters such as angle, frequency, force, and displacement under real-world vehicle operating conditions, thus limiting the accuracy and reliability of the test results.

[0004] For example, patent CN109085000A describes a method for verifying the friction plate shedding performance through a driven disc torsional resistance test, but it does not cover the reliability testing of the pre-damping spring. Patent CN202433203U introduces an electronically controlled sensing device, which, although related to the clutch, also does not provide a testing mechanism for the pre-damping spring in the clutch driven disc. These limitations highlight the importance of developing a universal testing mechanism capable of comprehensively evaluating the torsional performance of the clutch driven disc, including the characteristics of the pre-damping spring.

[0005] No effective solution has yet been proposed to address the above issues. Utility Model Content

[0006] The main objective of this invention is to provide a torsion testing device for a clutch driven plate damping spring, in order to solve the problem of the lack of reliability verification for the clutch driven plate, especially the pre-damping spring, in the prior art.

[0007] To achieve the above objectives, according to one aspect of the present invention, a torsional testing device for a damping spring on a clutch driven disc is provided, comprising: a first frame and a second frame, the first frame and the second frame being arranged opposite to each other; a torsional loading mechanism connected to the first frame; a transmission mechanism, one end of which is connected to the torsional loading mechanism, and the other end of which is connected to the driven disc to be tested; a clamping mechanism connected to the second frame, the clamping mechanism having a clamping space on the side facing the transmission mechanism for clamping the driven disc, the clamping mechanism being arranged opposite to the transmission mechanism, the transmission mechanism having a clamping position that moves toward the clamping mechanism to clamp the driven disc, and when the transmission mechanism is in the clamping position, one end of the clamping mechanism is connected to the transmission mechanism; wherein, when the transmission mechanism is in the clamping position, the torsional loading mechanism applies torque to the driven disc through the transmission mechanism to rotate it and perform reliability testing on the driven disc and the damping spring located on the driven disc.

[0008] Furthermore, the transmission mechanism includes: a shaft seat, one end of which is connected to the torsion loading mechanism via a fixed flange; a connecting shaft, one end of which is connected to the shaft seat, the other end of which has a working position extending into the clamping mechanism, and a clearance position away from the clamping mechanism, wherein when the connecting shaft is in the working position, the driven disc is sleeved on the connecting shaft.

[0009] Furthermore, the clamping mechanism includes: a tailstock, one end of which is movably connected to the second frame, and a connecting flange on the side of the tailstock facing the transfer mechanism; a clamping flange, one end of which is connected to the connecting flange, and a receiving recess on the surface of the clamping flange facing the transfer mechanism, the receiving recess being used to receive the driven disc to be tested; a cover, which is detachably connected to the clamping flange, and the cover is located on the side close to the transfer mechanism, and a clamping space is formed between the cover and the receiving recess of the clamping flange; wherein, the driven disc and the receiving recess are in transition fit.

[0010] Furthermore, a positioning pin is provided on the other end of the connecting shaft, and a positioning hole is provided on the clamping mechanism to cooperate with the positioning pin. When the transmission mechanism is in the clamping position, the positioning pin is located in the positioning hole.

[0011] Furthermore, a positioning hole is provided at the bottom of the recessed portion.

[0012] Furthermore, the torsion testing device includes: a first base and a second base, wherein the torsion loading mechanism is connected to the first base via the first frame, and the clamping mechanism is connected to the second base via the second frame. The relative distance between the first frame and the second frame is adjustable to adjust the distance between the clamping mechanism and the torsion loading mechanism.

[0013] Further, at least one of the first base and the second base includes: a support assembly, the top of which is provided with a support plate, and both ends of the support plate are provided with first adjustment grooves, the first adjustment grooves extending along the width direction of the support assembly, the first frame being movably connected to the first base along the extension path of the first adjustment groove, and / or the second frame being movably connected to the second base along the extension path of the first adjustment groove, thereby adjusting the distance between the clamping mechanism and the loading mechanism; an adjusting member, which is provided on the side of the support assembly away from the frame, and both ends of the adjusting member are provided with second adjustment grooves, the second adjustment grooves extending along the height direction of the adjusting member, the adjusting member being movably connected to the support assembly, so that the height of the support assembly is adjustable in the vertical direction.

[0014] Furthermore, the support assembly also includes: support members, of which two support members are provided, the two support members are arranged opposite each other along the length direction of the support plate, the support members are located inside the adjusting member, and the tops of the two support members are connected to the support plate;

[0015] Each support component is provided with two sets of adjustment holes, which are spaced apart along the length of the support component and spaced apart along the height of the support component. The support component is movably connected to the second adjustment groove of the adjustment component through multiple adjustment holes to adjust the height of the support assembly in the vertical direction.

[0016] Furthermore, the torsion testing device also includes: a bottom strip plate, with third adjustment grooves on both sides of the bottom strip plate, the third adjustment grooves extending along the length of the bottom strip plate, and a first base and a second base movably connected to the bottom strip plate to adjust the distance between the first base and the second base.

[0017] Furthermore, the torsional loading mechanism includes a linear actuator, one end of which is connected to the transmission mechanism. The linear actuator provides torque to the transmission mechanism to perform reliability testing on the driven plate and the damping spring located on the driven plate.

[0018] By applying the technical solution of this utility model, a stable foundation platform is formed by the relative arrangement of the first and second frames to support the entire test device. One end of the transmission mechanism is connected to the torsional loading mechanism, and the other end is connected to the driven disc of the clutch under test. Its function is to smoothly transmit torque to the driven disc. Simultaneously, in the clamping position, the transmission mechanism works in conjunction with the clamping mechanism to firmly clamp the driven disc, thereby ensuring the accuracy of the loaded torque. During operation, the torsional loading mechanism applies torque to the driven disc through the transmission mechanism, causing torsional vibration of the driven disc and its damping springs. This vibration simulates the dynamic load borne by the clutch system during vehicle operation. By precisely controlling the magnitude of the torque, the rotation angle, and the frequency, this device can conduct in-depth testing of the dynamic performance and fatigue life of the driven disc and damping springs, providing a scientific basis for improving the overall performance and reliability of the clutch system. This application solves the problem of the lack of reliability verification for clutch driven discs, especially pre-damping springs, in the prior art. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0020] Figure 1 A schematic diagram of the structure of a first embodiment of the torsion testing apparatus according to the present invention is shown;

[0021] Figure 2 A schematic diagram of the structure of a second embodiment of the torsion testing apparatus according to the present invention is shown;

[0022] Figure 3 A schematic diagram of a third embodiment of the torsion testing apparatus according to the present invention is shown.

[0023] The above figures include the following reference numerals:

[0024] 1. Torsional loading mechanism;

[0025] 2. Transmission mechanism; 21. Shaft seat; 22. Connecting shaft; 221. Locating pin;

[0026] 3. Cover;

[0027] 4. Driven disc; 41. Damping spring;

[0028] 5. Clamp the flange;

[0029] 6. Fixed flange;

[0030] 7. Tailstock;

[0031] 81. Supporting component; 811. Supporting plate; 812. Supporting element;

[0032] 82. Adjusting components;

[0033] 9. To accommodate the recessed area;

[0034] 10. Positioning holes;

[0035] 12. The first frame;

[0036] 13. The second rack;

[0037] 14. Connecting flange;

[0038] 20. Bottom strip. Detailed Implementation

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0041] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0042] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0043] Combination Figures 1 to 3 As shown in the specific embodiment of this application, a torsion testing device for a damping spring of a clutch driven plate is provided.

[0044] Specifically, the torsion testing device includes: a first frame 12, a second frame 13, a torsion loading mechanism 1, a transmission mechanism 2, and a clamping mechanism. The first frame 12 and the second frame 13 are arranged opposite to each other; the torsion loading mechanism 1 is connected to the first frame 12; one end of the transmission mechanism 2 is connected to the torsion loading mechanism 1, and the other end of the transmission mechanism is connected to the driven disk 4 to be tested; the clamping mechanism is connected to the second frame 13, and the clamping mechanism has a clamping space on the side facing the transmission mechanism 2, which is used to clamp the driven disk 4. The clamping mechanism is arranged opposite to the transmission mechanism 2, and the transmission mechanism 2 has a clamping position that moves towards the clamping mechanism to clamp the driven disk 4. When the transmission mechanism 2 is in the clamping position, one end of the clamping mechanism is connected to the transmission mechanism 2; wherein, when the transmission mechanism 2 is in the clamping position, the torsion loading mechanism 1 applies torque to the driven disk 4 through the transmission mechanism 2 to rotate it and perform reliability testing on the driven disk 4 and the damping spring 41 located on the driven disk 4.

[0045] By applying the technical solution of this utility model, a stable base platform is formed by the relative arrangement of the first frame 12 and the second frame 13 to support the entire test device. One end of the transmission mechanism 2 is connected to the torsional loading mechanism 1, and the other end is connected to the clutch driven plate 4 to be tested. Its function is to smoothly transmit torque to the driven plate 4. At the same time, when clamped, the transmission mechanism 2 can work in conjunction with the clamping mechanism to firmly clamp the driven plate 4, thereby ensuring the accuracy of the loaded torque. During operation, the torsional loading mechanism applies torque to the driven plate 4 through the transmission mechanism, causing the driven plate 4 and the damping spring 41 on it to undergo torsional vibration. This vibration simulates the dynamic load borne by the clutch system during vehicle operation. By precisely controlling the magnitude of the torque, the rotation angle, and the frequency, this device can conduct in-depth testing of the dynamic performance and fatigue life of the driven plate 4 and the damping spring 41, providing a scientific basis for improving the overall performance and reliability of the clutch system. This application solves the problem of the lack of reliability verification for the clutch driven plate, especially the pre-damping spring, in the prior art.

[0046] It should be further explained that multiple pre-damping springs 41 are provided on the driven disk 4, and the multiple pre-damping springs 41 are arranged around the inner circumference of the driven disk 4.

[0047] Specifically, such as Figure 2 As shown, the transmission mechanism 2 includes: a bearing seat 21 and a connecting shaft 22. One end of the bearing seat 21 is connected to the torsion loading mechanism 1 via a fixed flange 6; one end of the connecting shaft 22 is connected to the bearing seat 21, and the other end of the connecting shaft 22 has a working position extending into the clamping mechanism, and the other end of the connecting shaft 22 has a clearance position away from the clamping mechanism. When the connecting shaft 22 is in the working position, the driven disk 4 is sleeved on the connecting shaft 22.

[0048] It should be further explained that the torsion testing device also includes a fixed flange 6, which is positioned between the torsion loading mechanism 1 and the transmission mechanism 2. One end of the fixed flange 6 is connected to the torsion loading mechanism 1, and the other end is connected to the transmission mechanism 2. One end of the fixed flange 6 is firmly connected to the torsion loading mechanism 1, and the other end is tightly connected to the shaft seat 21 of the transmission mechanism 2. The presence of the fixed flange 6 ensures the continuity and stability of torque transmission, guarantees the integrity of the torque transmission path from the loading source to the driven disc 4, avoids torque loss or fluctuations caused by unstable connections, and ensures the accuracy and reliability of the test results.

[0049] During the torsion test of the driven disc, the torque generated by the torsion loading mechanism 1 is transmitted to the bearing seat 21 through the fixed flange 6, and then transmitted from the bearing seat 21 to the connecting shaft 22. At this time, the connecting shaft 22 should be in the working position and in close contact with the driven disc 4 to ensure that the torque can be directly applied to the driven disc. The rotation of the connecting shaft drives the driven disc to undergo torsional vibration, thereby testing the dynamic performance and fatigue life of the driven disc and its damping springs.

[0050] Furthermore, the clamping mechanism includes: a tailstock 7, a clamping flange 5, and a cover 3. One end of the tailstock 7 is movably connected to the second frame 13, and a connecting flange 14 is provided on the side of the tailstock 7 facing the transfer mechanism 2; one end of the clamping flange 5 is connected to the connecting flange 14, and a receiving recess 9 is provided on the surface of the clamping flange 5 facing the transfer mechanism 2, which is used to receive the driven disk 4 to be tested; the cover 3 is detachably connected to the clamping flange 5, and the cover 3 is located on the side close to the transfer mechanism 2, forming a clamping space between the cover 3 and the receiving recess 9 of the clamping flange 5; wherein, the driven disk 4 is transitionally fitted with the receiving recess 9. The clamping mechanism design in this embodiment achieves efficient and stable clamping of the driven disk 4 through the synergistic effect of the tailstock 7, the clamping flange 5, and the cover 3. The movable connection of the tailstock 7 allows the device to accommodate driven discs 4 of different sizes. The clamping flange 5 and the cover 3 are connected by bolts. The clamping space between the clamping flange 5 and the cover 3 ensures the positional accuracy of the driven disc 4 during the test. The transition fit design further enhances the reliability of the driven disc clamping. This structural design not only simplifies the loading and unloading process of the driven disc, but also ensures that the driven disc is not disturbed by external forces during torsional loading, thus ensuring the accuracy of the test data and the validity of the experimental results.

[0051] One end of the clamping flange 5 is tightly connected to the connecting flange 14 of the tailstock 7, and the other side surface is designed with a receiving recess 9, which is specifically designed to receive the driven plate 4 to be tested. The driven plate and the receiving recess adopt a transition fit. This fit ensures that the driven plate is not prone to positional displacement in the clamped state, while preventing damage to the driven plate due to excessive tightness.

[0052] Specifically, a positioning pin 221 is provided on the other end of the connecting shaft 22, and a positioning hole 10 is provided on the clamping mechanism to cooperate with the positioning pin 221. When the transmission mechanism 2 is in the clamping position, the positioning pin 221 is located in the positioning hole 10.

[0053] Specifically, a positioning hole 10 is provided at the bottom of the receiving recess 9.

[0054] The engagement between the locating pin 221 and the locating hole 10 is not only for precise alignment, but more importantly, it forms a reliable positioning mechanism. Even during high-intensity torsion tests, the driven disc and the connecting shaft remain aligned, ensuring concentricity and avoiding torque loading errors caused by positional offset, thus ensuring the accuracy of the test results.

[0055] This structural design also improves the operational efficiency of the testing device. Before installing the driven plate 4 for the torsion test, simply insert the positioning pin 221 into the positioning hole 10 to quickly position and initially fix the driven plate 4. Then, the final secure clamping is achieved through the clamping action between the clamping flange 5 and the cover 3. The cooperation between the positioning pin 221 and the positioning hole 10 simplifies the alignment and installation process of the driven plate, reduces the time and difficulty of manual adjustment, and greatly improves the preparation speed and ease of operation of the test. The design of the positioning hole 10 at the bottom of the receiving recess 9 ensures the concentricity between the driven plate 4 and the transmission mechanism 2, which not only simplifies the positioning and unloading process of the driven plate but also ensures high accuracy of the driven plate position under torsion loading conditions.

[0056] Furthermore, the torsion testing apparatus includes a first base and a second base. The torsion loading mechanism 1 is connected to the first base via a first frame 12, and the clamping mechanism is connected to the second base via a second frame 13. The relative distance between the first frame 12 and the second frame 13 is adjustable to regulate the distance between the clamping mechanism and the torsion loading mechanism 1. By adjusting the relative distance between the first frame 12 and the second frame 13, different sizes of driven discs 4 can be accommodated, ensuring the versatility and flexibility of the testing apparatus. For example, when testing a larger driven disc, the distance between the two frames can be increased to provide sufficient space for the driven disc, ensuring it is not interfered with during loading and clamping. Conversely, when testing a smaller driven disc, the distance between the two frames can be shortened to make the entire apparatus more compact, reducing unnecessary displacement and improving test accuracy. In addition, by adjusting the relative positions of the first frame 12 and the second frame 13, the coaxiality between the torsion loading mechanism and the clamping mechanism can be fine-tuned, which is crucial for ensuring the stability of the driven disc and the accuracy of torque transmission during the torsion test.

[0057] Specifically, such as Figure 3As shown, at least one of the first and second bases includes a support assembly 81 and an adjusting member 82. A support plate 811 is provided on the top of the support assembly 81, and first adjusting grooves are provided at both ends of the support plate 811. The first adjusting grooves extend along the width direction of the support assembly 81. A first frame 12 can be movably connected to the first base along the extension path of the first adjusting groove, and / or a second frame 13 can be movably connected to the second base along the extension path of the first adjusting groove, thereby adjusting the distance between the clamping mechanism and the loading mechanism 1. The adjusting member 82 is located on the side of the support assembly 81 away from the frame 12, and second adjusting grooves are provided at both ends of the adjusting member 82. The second adjusting grooves extend along the height direction of the adjusting member 82, and the adjusting member 82 is movably connected to the support assembly 81 so that the height of the support assembly 81 is adjustable in the vertical direction. The base mainly consists of the support assembly 81 and the adjusting member 82, aiming to achieve dual adjustment in the height and width directions of the torsion testing device to adapt to the specific requirements of different types of clutch driven plates.

[0058] The support assembly 81 is topped with a support plate 811 to support the test bench and subsequent test load. The support plate 811 has first adjustment slots at both ends, extending along the width of the support assembly, providing a lateral adjustment path for the first test bench 12 and the second test bench 13. By moving the test bench within the first adjustment slot along its extension direction, the distance between the clamping mechanism and the torsional loading mechanism 1 can be precisely adjusted, ensuring that the driven disc, regardless of its size, is in the optimal loading position, avoiding reduced torque transmission efficiency or damage to the driven disc due to improper positioning. An adjusting member 82 is located on the side of the support assembly 81 away from the test bench, and has second adjustment slots at both ends, extending along the height of the adjusting member. The vertical height of the support assembly can be adjusted through the movable connection between the adjusting member and the support assembly. By adjusting the position of the support assembly within the second adjustment slots, the height of the entire device is adjusted, ensuring that the driven disc remains in the ideal position during loading, improving the accuracy and consistency of the test. The combined use of the first and second adjustment slots not only provides the device with flexible adjustment capabilities in both width and height directions, but also simplifies the complexity of the adjustment process, enabling operators to quickly and accurately complete various adjustment actions. This creates more optimized experimental conditions for the torsion test of the clutch driven plate. Through this precise adjustment mechanism, the torsion test device can better adapt to the testing needs of various clutch driven plates. Whether it is small-batch trial production or product testing in the large-scale production stage, it can achieve high efficiency and accuracy, which plays an important role in improving the overall R&D quality and production efficiency of clutch systems.

[0059] Furthermore, the support assembly 81 also includes two support members 812, which are arranged opposite each other along the length of the support plate 811. The support members 812 are located inside the adjusting member 82, and their tops are connected to the support plate 811. Each support member 812 has two sets of adjusting holes, spaced apart along its length and height. The support members 812 are movably connected to the second adjusting groove of the adjusting member 82 via these holes to adjust the vertical height of the support assembly 81. By cooperating with the adjusting holes on the support members 812 and the second adjusting groove of the adjusting member 82, the vertical height of the support assembly 81 can be adjusted, thereby adjusting the installation height of the first frame 12 and the second frame 13.

[0060] The support member 812 is movably connected to the second adjustment slot of the adjustment member 82 via multiple adjustment holes. This design allows the support member and the second adjustment slot of the adjustment member 82 to form a movable connection. The operator can select the appropriate adjustment hole to align with the second adjustment slot, thereby adjusting the height of the support assembly in the vertical direction to precisely match the height requirements of different driven disc models. The two support members 812 are arranged opposite each other, further enhancing the stability of the entire support assembly. When the support assembly needs to be adjusted in the vertical direction, this symmetrical layout ensures balance during the adjustment process, avoiding tilting or instability that may be caused by unilateral adjustment, thus ensuring the reliability of the entire testing device.

[0061] Specifically, the torsion testing apparatus also includes a bottom strip plate 20, with third adjustment grooves on both sides of the bottom strip plate 20 extending along its length. A first base and a second base are movably connected to the bottom strip plate 20 to adjust the distance between them. The third adjustment grooves on the bottom strip plate 20 allow for horizontal adjustment of the first and second bases to accommodate driven discs of different sizes. The bottom strip plate and its third adjustment grooves not only enhance the flexibility and versatility of the apparatus but also improve its stability, ensuring a uniform distribution of the supporting force on the driven disc during torsion loading. This avoids the risk of driven disc displacement or damage due to unstable support, thereby guaranteeing the accuracy and reliability of the test results.

[0062] Specifically, the torsional loading mechanism 1 includes a linear actuator, one end of which is connected to the transmission mechanism 2. The linear actuator provides torque rotation to the transmission mechanism 2 to perform reliability testing on the driven plate 4 and the damping spring 41 located on the driven plate 4. Utilizing the precise control capability of the linear actuator, stable torque and frequency can be provided to perform torsional tests on the driven plate 4 and the damping spring 41 under simulated actual working conditions to evaluate their performance and reliability.

[0063] One end of the linear actuator is tightly connected to the transmission mechanism 2. This connection allows the linear actuator to precisely control the magnitude, frequency, angle, and displacement of the torque transmitted to the driven plate, simulating the actual working state of the clutch driven plate under different driving conditions. Through its driving function, the linear actuator causes the transmission mechanism to rotate and effectively transmits torque to the driven plate and its damping spring.

[0064] As can be seen from the above description, the above embodiments of this utility model achieve the following technical effects: the torsion test device has a simple structure, is easy to operate, has low manufacturing cost, is convenient for fine adjustment, and has strong versatility; the mechanism is applicable to most clutch driven plates; it can not only test the torsional stiffness performance and fatigue life of the driven plate, but also test the characteristics of the pre-damping spring, which helps to improve the overall performance and reliability of the clutch driven plate.

[0065] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0066] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.

[0067] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0068] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A torsion testing device for a damping spring of a clutch driven plate, characterized in that, include: The first frame (12) and the second frame (13) are arranged opposite to each other; Torsional loading mechanism (1), which is connected to the first frame (12); A transmission mechanism (2) is provided, one end of which is connected to the torsional loading mechanism (1), and the other end of which is connected to the driven disk (4) to be tested. A clamping mechanism is connected to the second frame (13). The clamping mechanism has a clamping space on the side facing the transfer mechanism (2). The clamping space is used to clamp the driven disk (4). The clamping mechanism is arranged opposite to the transfer mechanism (2). The transfer mechanism (2) has a clamping position that moves toward the clamping mechanism to clamp the driven disk (4). When the transfer mechanism (2) is in the clamping position, one end of the clamping mechanism is connected to the transfer mechanism (2). When the transmission mechanism (2) is in the clamping position, the torsion loading mechanism (1) applies torque to the driven disk (4) through the transmission mechanism (2) to perform a reliability test on the driven disk (4) and the damping spring (41) located on the driven disk (4).

2. The torsion testing device of claim 1, wherein The transmission mechanism (2) includes: A bearing seat (21), one end of which is connected to the torsion loading mechanism (1) via a fixed flange (6); A connecting shaft (22) is provided, one end of which is connected to the bearing seat (21). The other end of the connecting shaft (22) has a working position extending into the clamping mechanism and a clearance position away from the clamping mechanism. When the connecting shaft (22) is in the working position, the driven disk (4) is sleeved on the connecting shaft (22).

3. The torsion testing device of claim 2, wherein The clamping mechanism includes: Tail seat (7), one end of which is movably connected to the second frame (13), and a connecting flange (14) is provided on the side of the tail seat (7) facing the transfer mechanism (2); A clamping flange (5) is provided with one end connected to the connecting flange (14). The surface of the clamping flange (5) facing the transfer mechanism (2) is provided with a receiving recess (9). The receiving recess (9) is used to receive the driven disk (4) to be tested. Cover (3), the cover (3) is detachably connected to the clamping flange (5), and the cover (3) is disposed on the side close to the transfer mechanism (2), and the clamping space is formed between the cover (3) and the receiving recess (9) of the clamping flange (5); The driven disk (4) and the receiving recess (9) are in transitional fit.

4. The torsion testing device of claim 3, wherein A positioning pin (221) is provided on the other end of the connecting shaft (22), and a positioning hole (10) is provided on the clamping mechanism to cooperate with the positioning pin (221). When the transmission mechanism (2) is in the clamping position, the positioning pin (221) is located in the positioning hole (10).

5. The torsion testing device of claim 4, wherein, The bottom of the receiving recess (9) is provided with the positioning hole (10).

6. The torsion testing device of claim 1, wherein The torsion testing apparatus includes: The first base and the second base are provided, wherein the torsion loading mechanism (1) is connected to the first base via the first frame (12), and the clamping mechanism is connected to the second base via the second frame (13). The relative distance between the first frame (12) and the second frame (13) is adjustable to adjust the distance between the clamping mechanism and the torsion loading mechanism (1).

7. The torsion testing device of claim 6, wherein At least one of the first base and the second base includes: A support assembly (81) is provided with a support plate (811) on its top. The support plate (811) has first adjustment grooves at both ends. The first adjustment grooves extend along the width direction of the support assembly (81). The first frame (12) can be movably connected to the first base along the extension path of the first adjustment groove, and / or the second frame (13) can be movably connected to the second base along the extension path of the first adjustment groove, thereby adjusting the distance between the clamping mechanism and the loading mechanism (1). An adjusting member (82) is provided on the side of the support assembly (81) away from the platform (12). The two ends of the adjusting member (82) are provided with second adjusting grooves, which extend along the height direction of the adjusting member (82). The adjusting member (82) is movably connected to the support assembly (81) so that the height of the support assembly (81) in the vertical direction is adjustable.

8. The torsion testing device of claim 7, wherein, The support component (81) also includes: Support member (812), two support members (812) are provided, the two support members (812) are arranged opposite to each other along the length direction of the support plate (811), the support members (812) are located inside the adjusting member (82), and the top of the two support members (812) are connected to the support plate (811); Each of the support members (812) is provided with two sets of adjustment holes. The two sets of adjustment holes are spaced apart along the length direction of the support member (812) and spaced apart along the height direction of the support member (812). The support member (812) is movably connected to the second adjustment groove of the adjustment member (82) through multiple adjustment holes to adjust the height of the support assembly (81) in the vertical direction.

9. The torsion testing apparatus according to claim 8, characterized in that, The torsion testing apparatus also includes: The bottom strip plate (20) has a third adjustment groove on both sides. The third adjustment groove extends along the length of the bottom strip plate (20). The first base and the second base are movably connected to the bottom strip plate (20) to adjust the distance between the first base and the second base.

10. The torsion testing device of claim 9, wherein, The torsion loading mechanism (1) comprises a linear actuator, one end of the linear actuator is connected with the transmission mechanism, the linear actuator provides the torque rotation to the transmission mechanism (2), so as to reliably check the driven disc (4) and the damping spring (41) located on the driven disc (4).

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