Clutch cover assembly comprehensive testing machine

Abstract

The application provides a clutch cover assembly comprehensive testing machine, and belongs to the field of clutch testing equipment. The clutch cover assembly comprehensive testing machine comprises a testing mechanism and a wear simulation mechanism. The testing mechanism is used for testing the clutch cover assembly and has a fixing position suitable for fixing the clutch cover assembly. The wear simulation mechanism is arranged on the testing mechanism and has a pushing top suitable for pushing the wear collection part of the clutch cover assembly to adjust along the axial direction of the clutch cover assembly. By adding the wear simulation mechanism on the testing mechanism and pushing the wear collection part of the clutch cover assembly to adjust along the axial direction of the clutch cover assembly through the wear simulation mechanism, different degrees of wear of the driven disc are simulated, so that the testing mechanism can test the related parameters of the clutch cover assembly when the driven disc is in different wear states, the automation of testing is realized, and the testing efficiency is improved.

Description

Technical Field

[0001] This application belongs to the technical field of clutch testing equipment, and more specifically, relates to a comprehensive testing machine for clutch cover assembly. Background Technology

[0002] The clutch is a crucial component of an automotive transmission system. After the clutch is assembled, its separation and load characteristics need to be measured using a comprehensive testing machine to determine parameters such as the working clamping force, separation force, and pressure plate lift of the clutch assembly after testing.

[0003] The applicant has developed a new type of clutch and has applied for patents (patent numbers: CN202122400024.4, CN202111166206.8). This new clutch is equipped with an automatic wear compensation mechanism, which can ensure that the distance between the clutch diaphragm spring release finger and the engine flywheel remains constant during use. This ensures that the position of the clutch diaphragm spring release finger and the release bearing action surface on the clutch actuator remains the same as in the initial installation state, eliminating the defect of inaccurate clutch position control. This facilitates the improvement of the control response speed of the AMT system, and the clutch engagement and gear shifting are both smooth and fast. Furthermore, because the position of the diaphragm spring remains unchanged, the working clamping force also remains basically unchanged, and the clutch transmission torque is relatively accurate and does not change.

[0004] Because this new type of clutch automatically compensates for wear when the driven plate wears to different degrees, the performance parameters of the entire clutch will change. To ensure that the clutch performance always meets requirements when the driven plate wears to different degrees, it is necessary to perform performance tests on the clutch cover assembly under different wear conditions. However, current testing equipment can only measure the performance of the clutch cover assembly in a fixed state. When testing this new type of clutch, the operator needs to manually adjust the automatic wear compensation mechanism to a certain degree before installing it on the testing equipment to detect the performance of the clutch cover assembly under a certain wear condition of the driven plate. To test the clutch performance under different wear conditions of the driven plate, it is necessary to repeatedly adjust the automatic compensation mechanism and repeatedly install and remove the clutch on the testing equipment, which is cumbersome, labor-intensive, and inefficient. Utility Model Content

[0005] In view of this, the present application provides a comprehensive testing machine for clutch cover assembly to solve the technical problems of existing testing equipment for detecting the performance of clutch cover assembly under different wear levels, which is cumbersome to operate and has low testing efficiency.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] On the one hand, a comprehensive testing machine for a clutch cover assembly is provided, comprising:

[0008] The testing mechanism is used to test the clutch cover assembly and has a fixing position suitable for fixing the clutch cover assembly;

[0009] A wear simulation mechanism, located in the test mechanism, has a pusher top adapted to push the wear collection section of the clutch cover assembly to adjust along the axial direction of the clutch cover assembly.

[0010] In some embodiments, the wear simulation mechanism includes:

[0011] The push column is axially slidable, and one end is opposite to the wear collection part of the clutch cover assembly in the fixed position to form the push top;

[0012] An active wedge block engages with the pusher column in a wedge shape to push the pusher column to slide axially.

[0013] In some embodiments, on the axial direction of the push post, one side of the active wedge block is an inclined surface that abuts against the push post, and the opposite side is an abutment surface that slides against the sliding hole sidewall of the test mechanism.

[0014] In some embodiments, the pusher pin is provided with an oblique hole at an angle to the axis;

[0015] The active wedge includes:

[0016] The wedge-shaped segment slides through the inclined hole and forms a wedge-shaped fit with the two wall surfaces of the inclined hole in the axial direction of the push column, respectively.

[0017] Two sliding sections are located at both ends of the wedge-shaped section and slide in cooperation with the testing mechanism respectively.

[0018] In some embodiments, the active wedge is driven by a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

[0019] In some embodiments, the fixed position includes:

[0020] A positioning surface is provided on the test mechanism and is adapted to be positioned with the mating surface of the clutch cover assembly housing;

[0021] Multiple clamping parts are distributed around the positioning surface and are adapted to clamp and fix the housing of the clutch cover assembly to the positioning surface.

[0022] In some embodiments, the testing facility includes:

[0023] The test bench is equipped with the aforementioned fixed position;

[0024] The telescopic unit is located below the fixed position, and the telescopic rod passes through the center hole of the clutch cover assembly located in the fixed position; the telescopic rod is provided with a retaining plate that is limited to the inner ring of the diaphragm spring of the clutch cover assembly, so as to drive the clutch cover assembly to complete the clutch engagement action.

[0025] The beneficial effects of the clutch cover assembly comprehensive testing machine provided in this application embodiment are as follows: Compared with the prior art, the clutch cover assembly comprehensive testing machine in this application embodiment adds a wear simulation mechanism to the testing mechanism. The wear simulation mechanism pushes the wear collection part of the clutch cover assembly to adjust along the axial direction of the clutch cover assembly, simulating different degrees of wear on the driven plate. This enables the testing mechanism to test the relevant parameters of the clutch cover assembly when the driven plate is in different wear states, thereby achieving automated testing and improving testing efficiency. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A top view of the testing mechanism of the clutch cover assembly integrated testing machine provided in the embodiments of this application;

[0028] Figure 2 for Figure 1 Side view of the testing facility;

[0029] Figure 3 A side view of the integrated testing machine for the clutch cover assembly provided in this application embodiment;

[0030] Figure 4 A side view of the integrated testing machine for the clutch cover assembly provided in another embodiment of this application.

[0031] The following are the labeling elements in the figure:

[0032] 1-Testing mechanism; 11-Testing table; 12-Fixed position; 121-Positioning surface; 122-Clamping part; 13-Detection telescopic unit; 131-Telescopic rod; 2-Wear simulation mechanism; 21-Push column; 22-Active wedge; 221-Wedge section; 222-Sliding section; 23-Hydraulic cylinder; 3-Clutch cover assembly. Detailed Implementation

[0033] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0034] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0035] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0037] Please refer to the following: Figures 1 to 4 The clutch cover assembly comprehensive testing machine provided in the embodiments of this application will now be described. A clutch cover assembly comprehensive testing machine includes:

[0038] The testing mechanism is used to test the clutch cover assembly and has a fixing position suitable for fixing the clutch cover assembly;

[0039] The wear simulation mechanism, located in the testing mechanism, has a pusher top adapted to push the wear collection section of the clutch cover assembly along the axial direction of the clutch cover assembly.

[0040] Compared with the prior art, the clutch cover assembly comprehensive testing machine of this application adds a wear simulation mechanism to the testing mechanism. The wear simulation mechanism pushes the wear collection part of the clutch cover assembly to adjust along the axial direction of the clutch cover assembly, simulating different degrees of wear on the driven plate. This enables the testing mechanism to test the relevant parameters of the clutch cover assembly when the driven plate is in different wear states, thereby achieving automation of the test and improving testing efficiency.

[0041] In this embodiment, the testing mechanism can refer to existing clutch testing equipment or clutch cover assembly testing equipment. By driving the clutch cover to perform separation and engagement actions, it can detect one or more parameters of the clutch cover assembly, such as separation force and separation stroke. The testing mechanism is equipped with a fixed position, which is used to fix the clutch cover assembly to complete various tests, and also to cooperate with the wear simulation mechanism to prevent the clutch cover assembly from moving unexpectedly when the wear simulation mechanism pushes the wear collection part of the clutch cover assembly.

[0042] The wear simulation mechanism can be driven by various power structures to push the top, which can move the wear collection unit a different distance to simulate different degrees of wear on the driven plate. This allows the automatic wear compensation mechanism on the clutch cover assembly to automatically compensate accordingly. During testing, the wear simulation mechanism can be used to place the clutch cover assembly in a first driven plate wear state, and then the testing mechanism can detect various performance characteristics of the clutch cover assembly in this state. After the test is completed, the wear simulation mechanism can be used to place the clutch cover assembly in a second driven plate wear state, and then the testing mechanism can detect various performance characteristics of the clutch cover assembly in this state; and so on, to automatically detect various performance characteristics of the clutch cover assembly under multiple driven plate wear states.

[0043] It should be noted that the wear collection section of the automatic wear compensation mechanism is usually located on the side of the clutch cover assembly facing the flywheel end face. In actual operation, after the clutch cover assembly is installed on the flywheel, the wear collection section of the clutch cover assembly remains stationary against the flywheel end face (either directly or indirectly). When the driven plate wears, it causes an increase in the forward pressure distance when the pressure plate of the clutch cover assembly presses against the driven plate (i.e., the pressure plate is closer to the flywheel end face), causing the automatic wear compensation mechanism on the clutch cover assembly to automatically compensate. However, this embodiment does not completely simulate the working state of the clutch. Instead, by pushing the wear collection section, it is equivalent to bringing the flywheel end face closer to the pressure plate of the clutch cover assembly, so that the pressure plate is closer to the flywheel end face when pressing. This causes the automatic wear compensation mechanism on the clutch cover assembly to mistakenly believe that the driven plate has worn, and thus automatically compensate.

[0044] Please see Figure 3 and 4 As a specific embodiment of the clutch cover assembly comprehensive testing machine provided in this application, the wear simulation mechanism includes:

[0045] The pusher is axially slidable, and one end is opposite to the wear collection part of the clutch cover assembly in a fixed position to form a pusher top;

[0046] The active wedge block forms a wedge-shaped fit with the push column to push the push column to slide axially.

[0047] In this embodiment, an active wedge is used to push the push column. The active wedge can provide a certain support to the push column in the axial direction, so as to avoid the reaction force of the push being too large and affecting the driving unit of the active wedge, thus reducing the requirements of the driving unit.

[0048] Please see Figure 3 As a specific embodiment of the clutch cover assembly comprehensive testing machine provided in this application, on the axial direction of the push column, one side of the active wedge block is an inclined surface that abuts against the push column, and the opposite side is an abutting surface that slides and fits against the sliding hole sidewall of the testing mechanism.

[0049] In this embodiment, the contact surface of the active wedge slides against the side wall of the sliding hole, which can better counteract the downward reaction force of the push column on the active wedge.

[0050] In practice, the push post is positioned on the test platform of the testing mechanism and slides vertically. The active wedge is positioned below the push post and slides within a horizontal sliding hole on the test platform. The active wedge is a right-angled trapezoid, with its top surface being an inclined plane that abuts against the lower end of the push post, and its bottom surface being a horizontal abutment surface.

[0051] Please see Figure 4 As a specific embodiment of the clutch cover assembly comprehensive testing machine provided in this application, the push column is provided with an oblique hole at an angle to the axis;

[0052] Active wedges include:

[0053] The wedge-shaped section slides through the inclined hole and forms a wedge-shaped fit with the two walls of the inclined hole on the axial direction of the push column.

[0054] Two sliding sections are located at the two ends of the wedge-shaped section and are respectively slidably engaged with the testing mechanism.

[0055] In this embodiment, the reciprocating sliding of the active wedge can control the extension and retraction of the push column, thereby achieving flexible control of the push column.

[0056] In practical implementation, an inclined hole is provided at the lower end of the push column, and two horizontal sliding holes are provided in the testing mechanism. After the wedge-shaped segment of the active wedge passes through the inclined hole of the push column, its two ends slide into the two sliding holes respectively. The upper and lower sides of the wedge-shaped segment are parallel inclined surfaces, forming a wedge-shaped fit with the upper and lower walls of the inclined hole respectively.

[0057] Please see Figure 3 and 4 As a specific embodiment of the clutch cover assembly comprehensive testing machine provided in this application, the active wedge is driven by a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

[0058] In this embodiment, the active wedge can employ various linear drive methods.

[0059] In practice, the hydraulic cylinder, pneumatic cylinder, or electric push rod is set in a horizontal direction to drive the active wedge block to slide horizontally.

[0060] Please see Figures 1 to 4 As a specific embodiment of the clutch cover assembly comprehensive testing machine provided in this application, the fixed position includes:

[0061] The positioning surface, located in the testing mechanism, is suitable for positioning with the mating surface of the clutch cover assembly housing;

[0062] Multiple clamping parts are distributed around the positioning surface and are adapted to clamp and fix the housing of the clutch cover assembly to the positioning surface.

[0063] In practical implementation, the locating surface is typically shaped to match the end face of the clutch cover assembly housing, usually roughly circular, allowing for some gaps to avoid obstructing other equipment. Locating pins can be installed on the locating surface for precise positioning of the clutch cover assembly housing; these pins can engage with screw holes on the clutch cover assembly housing. Multiple clamping parts are evenly distributed around the locating surface, pressing and fixing the clutch cover assembly housing to it. Typically, these clamping parts can press against the screw locations on the clutch cover assembly housing. The clamping parts are usually 90° angle downward clamping cylinders / hydraulic cylinders or lever-type clamping cylinders / hydraulic cylinders.

[0064] Please see Figures 1 to 4 As one specific embodiment of the clutch cover assembly comprehensive testing machine provided in this application, the testing mechanism includes:

[0065] The test bench is equipped with fixed positions;

[0066] The telescopic unit is located below the fixed position, and the telescopic rod passes through the center hole of the clutch cover assembly in the fixed position; the telescopic rod is equipped with a retaining plate that is limited to the inner ring of the diaphragm spring of the clutch cover assembly to drive the clutch cover assembly to complete the clutch engagement action.

[0067] In practical implementation, the test bench is typically a frame structure with a fixed top, inside which various testing mechanisms and telescopic testing units can be installed. The telescopic testing unit is usually located below the center of the fixed position. The telescopic rod of the unit passes upwards through the central hole of the clutch cover assembly on the fixed position, and its upper end is secured to the inner ring of the diaphragm spring on the clutch cover assembly by a circular or rectangular clamping plate. During use, pulling the telescopic rod downwards pulls the inner ring of the diaphragm spring on the clutch cover assembly, causing the pressure plate on the clutch cover assembly to disengage; when the telescopic rod rises, the pressure plate on the clutch cover assembly automatically engages. The telescopic testing unit is usually powered by a hydraulic or pneumatic cylinder. It is primarily used to drive the clutch cover assembly to complete the clutch engagement and disengagement actions and can often be equipped with testing structures to detect disengagement force and disengagement stroke. For more details, please refer to the corresponding parts of commercially available clutch testing equipment or clutch cover assembly testing equipment.

[0068] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A comprehensive testing machine for clutch cover assembly, characterized in that, include: The testing mechanism is used to test the clutch cover assembly and has a fixing position suitable for fixing the clutch cover assembly; A wear simulation mechanism, located in the test mechanism, has a pusher top adapted to push the wear collection section of the clutch cover assembly to adjust along the axial direction of the clutch cover assembly.

2. The clutch cover assembly comprehensive testing machine as described in claim 1, characterized in that, The wear simulation mechanism includes: The push column is axially slidable, and one end is opposite to the wear collection part of the clutch cover assembly in the fixed position to form the push top; An active wedge block engages with the pusher column in a wedge shape to push the pusher column to slide axially.

3. The clutch cover assembly comprehensive testing machine as described in claim 2, characterized in that, Along the axial direction of the push column, one side of the active wedge block is an inclined surface that abuts against the push column, and the opposite side is an abutting surface that slides and fits against the sliding hole sidewall of the test mechanism.

4. The clutch cover assembly comprehensive testing machine as described in claim 2, characterized in that, The pusher is provided with an oblique hole at an angle to the axis; The active wedge includes: The wedge-shaped segment slides through the inclined hole and forms a wedge-shaped fit with the two wall surfaces of the inclined hole in the axial direction of the push column, respectively. Two sliding sections are located at both ends of the wedge-shaped section and slide in cooperation with the testing mechanism respectively.

5. The clutch cover assembly comprehensive testing machine as described in claim 2, characterized in that, The active wedge is driven by a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

6. The clutch cover assembly comprehensive testing machine as described in claim 1, characterized in that, Fixed positions include: A positioning surface is provided on the test mechanism and is adapted to be positioned with the mating surface of the clutch cover assembly housing; Multiple clamping parts are distributed around the positioning surface and are adapted to clamp and fix the housing of the clutch cover assembly to the positioning surface.

7. The clutch cover assembly comprehensive testing machine as described in claim 1, characterized in that, The testing facility includes: The test stand is equipped with the aforementioned fixed position; The telescopic unit is located below the fixed position, and the telescopic rod passes through the center hole of the clutch cover assembly located in the fixed position; the telescopic rod is provided with a retaining plate that is limited to the inner ring of the diaphragm spring of the clutch cover assembly, so as to drive the clutch cover assembly to complete the clutch engagement action.

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