Wet dual clutch test bench device

Abstract

The utility model discloses a kind of wet dual clutch test bench devices, belong to clutch detection technical field, the wet dual clutch test bench device of this includes rack, driving mechanism, simulation mechanism and transfer mechanism, driving mechanism is configured as providing test power to test workpiece;Simulation mechanism includes mounting base, mounting base is configured as bearing test workpiece, and make the input end of test workpiece and the output end transmission connection of driving mechanism, be provided with for pressure oil circuit and lubricating oil circuit on mounting base, for pressure oil circuit is configured as providing engagement pressure to test workpiece, lubricating oil circuit is configured as lubricating and cooling to test workpiece;Transfer mechanism is configured as handling and positioning test workpiece to mounting base.The utility model can dynamically reproduce complex working condition of wet dual clutch in actual gearbox in closed test bin, and then improve the goodness of fit of test data and real vehicle performance, ensure the integrity and authenticity of data.

Description

Technical Field

[0001] This utility model relates to the field of clutch testing technology, and in particular to a wet dual-clutch test bench device. Background Technology

[0002] In the research and development and quality verification of automotive transmission systems, the clutch, as a key transmission component, requires rigorous performance and reliability testing. Test benches are the core equipment for such testing, used to simulate real-vehicle operating conditions before vehicle assembly, evaluating key indicators such as clutch durability, shift quality, and torque transmission capability. With the increasing prevalence of dual-clutch transmissions, especially wet dual-clutch technology that operates in an oil-filled environment, higher and more complex requirements are placed on the operational simulation capabilities of testing equipment.

[0003] However, existing clutch test benches are mostly designed for dry clutches or traditional single clutches. Their structure and working principle cannot replicate the special working environment of wet dual clutches in a closed oil chamber. Therefore, they cannot effectively simulate the complex working conditions of wet clutches, resulting in significant deviations between test data and the actual performance of the clutch in vehicles. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a wet dual-clutch test bench device that can simulate the complex working conditions of a wet clutch in a real vehicle, thereby solving the problem of large deviations between test data and vehicle performance caused by environmental simulation distortion in existing test benches, and improving the integrity and authenticity of test data.

[0005] A wet dual-clutch test bench device according to an embodiment of the present invention includes: a frame; a drive mechanism disposed on the frame, the drive mechanism being configured to provide test power to a test workpiece; a simulation mechanism including a mounting base disposed on the frame, the mounting base being configured to support the test workpiece and to drively connect the input end of the test workpiece to the output end of the drive mechanism, the mounting base being provided with a pressure supply oil circuit and a lubrication oil circuit, the pressure supply oil circuit being configured to provide engagement pressure to the test workpiece, and the lubrication oil circuit being configured to lubricate and cool the test workpiece; and a transfer mechanism disposed on the frame, the transfer mechanism being configured to transport and position the test workpiece to the mounting base.

[0006] It has at least the following beneficial effects: The drive mechanism is mounted on the frame and is configured to provide test power and ultimately transmit it to the wet dual clutch under test; the simulation mechanism includes a mounting base mounted on the frame, which is used to support and fix the wet dual clutch under test, and can drive the input end of the wet dual clutch under test to achieve a transmission connection with the output end of the drive mechanism; wherein, the mounting base integrates a pressure supply oil circuit and a lubrication oil circuit, that is, when the wet dual clutch under test is installed in place, hydraulic oil can enter the hydraulic interface of the wet dual clutch under test through the pressure supply oil circuit and the mounting base, thereby controlling the corresponding clutch engagement. At the same time, lubricating oil flows into the interior of the wet dual clutch under test through the lubrication oil circuit and the mounting base to continuously lubricate and cool its friction unit components; the transfer mechanism is mounted on the frame and is configured to automatically transport and position the wet dual clutch under test on the mounting base, and then be driven by the mounting base to complete the docking with the drive mechanism. In the technical solution of this utility model, the drive mechanism, simulation mechanism, transfer mechanism and mounting base work together to construct a highly simulated automated testing environment. After receiving the wet dual clutch under test delivered by the transfer mechanism, the mounting base can not only drive it to connect with the drive mechanism as the power source, but also provide control oil pressure and lubrication cooling oil flow to the two built-in clutch units through the connection of the pressure supply oil circuit and the lubrication oil circuit. In this way, the working conditions of hydraulic control, lubrication cooling and dual clutch interaction in the actual gearbox are dynamically reproduced in the closed test chamber. This improves the consistency between the test data and the actual vehicle performance, ensures the integrity and authenticity of the data, and improves the efficiency of product quality testing.

[0007] According to some embodiments of the present invention, the simulation mechanism further includes a test chamber, which is mounted on a frame and forms a test cavity inside. The output end of the drive mechanism is located inside the test cavity, and the mounting base can be accommodated in the test cavity.

[0008] According to some embodiments of this utility model, the test chamber is provided with an openable and closable isolation baffle. When the isolation baffle is open, the transfer mechanism is allowed to move the test workpiece to the mounting base. When the isolation baffle is closed, the test chamber is sealed.

[0009] According to some embodiments of the present invention, the isolation baffle can be flipped and set on the test chamber, and the mounting base can move linearly relative to the isolation baffle. When the isolation baffle is flipped and closed to accommodate the mounting base in the test chamber, the mounting base moves in the direction close to the drive mechanism so that the input end of the test workpiece engages with the output end of the drive mechanism.

[0010] According to some embodiments of the present invention, a fixing component is provided on the mounting base, and the fixing component is configured to fix the test workpiece on the mounting base. According to some embodiments of the present invention, the pressure supply oil circuit includes a first oil circuit and a second oil circuit. The first oil circuit is configured to independently control the engagement of the external clutch of the test workpiece, and the second oil circuit is configured to independently control the engagement of the internal clutch of the test workpiece.

[0011] According to some embodiments of the present invention, a first engagement external spline and a second engagement external spline are provided on the mounting base. The first engagement external spline is configured to engage the inner clutch output shaft of the test workpiece, and the second engagement external spline is configured to engage the outer clutch output shaft of the test workpiece.

[0012] According to some embodiments of the present invention, the drive mechanism includes a drive motor, a torque sensor, a spindle box and a fixed bushing mounted on the frame, wherein the drive motor, torque sensor, spindle box and fixed bushing are connected in sequence.

[0013] According to some embodiments of the present invention, the drive mechanism further includes a cooling component, which is connected to the drive motor and configured to circulate cooling of the drive motor.

[0014] According to some embodiments of the present invention, the transfer mechanism includes: a loading platform, disposed on a frame, configured to place test workpieces; a transfer component, disposed on the frame; and a clamping component, disposed on the transfer component, configured to grip and release the test workpieces.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of the wet dual-clutch test bench device according to an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the transshipment mechanism; Figure 3 for Figure 1 A schematic diagram of the structure of the simulation mechanism; Figure 4 for Figure 3 A schematic diagram of the structure of the hidden experimental chamber in the middle; Figure 5 for Figure 1 A schematic diagram of the drive mechanism; Figure 6 for Figure 1 A schematic diagram of the structure where the central isolation baffle flips downwards.

[0017] Icon labels: Rack 1; Drive mechanism 2, drive motor 21, torque sensor 22, spindle box 23, fixed bushing 24, cooling assembly 25, water inlet pipe 251, water outlet pipe 252; Simulation mechanism 3, mounting base 31, first engagement external spline 311, second engagement external spline 312, pressure supply oil circuit 32, first oil circuit 321, second oil circuit 322, lubrication oil circuit 33, test chamber 34, test cavity 341, isolation baffle 342, fixing component 35, first drive component 351, pressure claw 352; Transfer mechanism 4, loading platform 41, positioning shaft 411, transfer component 42, clamping component 43, second drive component 431, gripper 432; 5. Wet dual clutch. Detailed Implementation

[0018] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0019] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0020] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0021] Reference Figures 1 to 6 This utility model discloses a wet dual-clutch test bench device, including a frame 1, a drive mechanism 2, a simulation mechanism 3, and a transfer mechanism 4. The drive mechanism 2 is mounted on the frame 1 and is configured to provide test power to the test workpiece. The simulation mechanism 3 includes a mounting base 31 mounted on the frame 1. The mounting base 31 is configured to support the test workpiece and drive the input end of the test workpiece to the output end of the drive mechanism 2. The mounting base 31 is provided with a pressure supply oil passage 32 and a lubrication oil passage 33. The pressure supply oil passage 32 is configured to provide engagement pressure to the test workpiece, and the lubrication oil passage 33 is configured to lubricate and cool the test workpiece. The transfer mechanism 4 is mounted on the frame 1 and is configured to transport and position the test workpiece to the mounting base 31.

[0022] It should be noted that the test workpiece of this utility model is a wet dual-clutch 5, which is one of the core components of an automotive transmission system. Specifically, unlike a dry clutch which dissipates heat through air, the wet dual-clutch 5 is completely immersed in a sealed oil chamber environment during operation, relying on circulating oil for lubrication, cooling, and hydraulic control. Structurally, it typically includes two independent clutch units, one internal and one external. The two clutch units are respectively connected to the input shafts that control odd and even gears, and the hydraulic system controls their alternating engagement and disengagement to achieve uninterrupted power output.

[0023] like Figure 1 As shown, the drive mechanism 2 is mounted on the frame 1 and is configured to provide test power and ultimately transmit it to the wet dual clutch 5 under test. The simulation mechanism 3 includes a mounting base 31 mounted on the frame 1. The mounting base 31 is used to support and fix the wet dual clutch 5 under test, and can drive the input end of the wet dual clutch 5 under test to achieve a transmission connection with the output end of the drive mechanism 2. The mounting base 31 integrates a pressure supply oil circuit 32 and a lubrication oil circuit 33. That is, when the wet dual clutch 5 under test is installed in place, hydraulic oil can be supplied to the mounting base 31 through the pressure supply oil circuit 32, and then connected to the hydraulic interface of the wet dual clutch 5 under test through the mounting base 31 to control the corresponding clutch engagement; at the same time, lubricating oil flows into the interior of the wet dual clutch 5 under test through the lubrication oil circuit 33 and the mounting base 31 to continuously lubricate and cool its friction unit components. The transfer mechanism 4 is mounted on the frame 1 and is configured to automatically transport and position the wet dual clutch 5 to be tested on the mounting base 31, and then be driven by the mounting base 31 to dock with the drive mechanism 2.

[0024] Thus, the drive mechanism 2, simulation mechanism 3, transfer mechanism 4, and mounting base 31 work together to construct a highly simulated automated testing environment. The mounting base 31, as an integrated functional interface, after receiving the wet dual clutch 5 delivered by the transfer mechanism 4, can not only drive it to dock with the drive mechanism 2, which serves as the power source, but also provide control oil pressure and lubrication cooling oil flow to the two built-in clutch units through the connection of the pressure supply oil circuit 32 and the lubrication oil circuit 33. This dynamically reproduces the hydraulic control, lubrication cooling, and dual clutch interaction working conditions in the actual gearbox within the closed test chamber 34, thereby improving the consistency between the test data and the actual vehicle performance, ensuring the integrity and authenticity of the data, and improving the efficiency of product quality testing.

[0025] In some specific embodiments of this utility model, the simulation mechanism 3 further includes a test chamber 34, which is mounted on the frame 1 and forms a test cavity 341 inside. The output end of the drive mechanism 2 is located inside the test cavity 341, and the mounting base 31 can be accommodated in the test cavity 341.

[0026] like Figure 1 and Figure 3 As shown, the test chamber 34 is fixedly mounted on the frame 1, and its interior forms a sealed test chamber 341. This provides a closed space that closely approximates the transmission oil chamber environment of a real vehicle for the performance testing of the wet dual-clutch 5. The output end of the drive mechanism 2 is pre-extended and positioned within the test chamber 341. Therefore, during testing, the wet dual-clutch 5 under test engages with the output end of the drive mechanism 2 under the drive of the mounting base 31. The mounting base 31, which carries the wet dual-clutch 5 under test, is completely contained within the test chamber 341. This means that the entire wet dual-clutch 5 under test, the mounting base 31, and the output end of the drive mechanism 2 are completely sealed inside the test chamber 341. This not only replicates the closed oil chamber working environment of the wet dual-clutch 5 in a real vehicle, creating conditions for the stable operation of the hydraulic control and lubrication circuit 33, but also effectively prevents the splashing and leakage of high-pressure oil during the test. While ensuring test safety and maintaining a clean environment, it also reduces oil loss, ensuring stable and consistent test conditions and reliable test results.

[0027] In some specific embodiments of this utility model, the test chamber 34 is provided with an opening and closing isolation baffle 342. When the isolation baffle 342 is open, the transfer mechanism 4 is allowed to transport the test workpiece to the mounting base 31. When the isolation baffle 342 is closed, the test chamber 341 is sealed.

[0028] like Figure 1 and Figure 3 As shown, the test chamber 34 has an opening communicating with the test cavity 341. An openable and closable isolation baffle 342 is installed at the opening. When the isolation baffle 342 is open, it forms an open working window on the test chamber 34, providing an unobstructed operating channel for the transfer mechanism 4, allowing it to smoothly transport and position the wet dual-clutch 5 under test onto the mounting base 31. Subsequently, after the test is ready, the isolation baffle 342 closes, its edge tightly fitting against the main body of the test chamber 34 through a sealing element, thus completely sealing the entire test cavity 341. This balances the safety of the fully enclosed environment during testing with the convenience of workpiece assembly and disassembly before and after testing, and further ensures that stable oil pressure and oil circulation can be established within the test cavity 341, providing environmental protection for simulating real working conditions.

[0029] It should be noted that in practical applications, the lubricating oil output from the lubrication circuit 33 leaves the clutch through the channel or structure in the clutch that is connected to the external air under the action of centrifugal force and pressure difference, and returns to the gearbox oil pan, thus completing a complete lubrication cycle. Sealing the entire test chamber 341 completely can prevent the lubricating oil from splashing under the action of centrifugal force.

[0030] In some specific embodiments of this utility model, the isolation baffle 342 can be flipped and set on the test chamber 34, and the mounting base 31 can move linearly relative to the isolation baffle 342. When the isolation baffle 342 is flipped and closed to accommodate the mounting base 31 in the test chamber 341, the mounting base 31 moves in the direction close to the drive mechanism 2 so that the input end of the test workpiece engages with the output end of the drive mechanism 2.

[0031] like Figure 3 , Figure 4 and Figure 6 As shown, the isolation baffle 342 is pivotally mounted on the test chamber 34, while the mounting base 31 is slidably mounted on the inner side of the isolation baffle 342 via a linear guide mechanism. It should be noted that the inner side of the isolation baffle 342 refers to the surface facing the closed test chamber 341 inside the test chamber 34 when the isolation baffle 342 is in the closed state. When the isolation baffle 342 is in the open state, the transfer mechanism 4 automatically picks up the wet dual-clutch 5 under test and places it on the mounting base 31. Then, the isolation baffle 342 flips downwards and finally closes the opening, thus housing the mounting base 31, which carries the wet dual-clutch 5 under test, entirely within the sealed test chamber 341. Finally, the mounting base 31 moves along the axial direction output by the drive mechanism 2, i.e., as shown... Figure 3 The rightward displacement shown in the diagram smoothly pushes the tested wet dual clutch 5 towards the drive mechanism 2 until its input end and the output end of the drive mechanism 2 are stably engaged. This compound motion of first flipping and sealing and then axially engaging not only achieves reliable sealing of the test chamber 341, but also ensures high coaxiality and high repeatability of the power connection, laying a solid foundation for the accuracy and reliability of the test data.

[0032] Specifically, the isolation baffle 342 is flipped using one of the following driving methods: pneumatic drive, electric drive, and hydraulic drive. The specific driving method is a common technical means in this field and will not be described in detail here.

[0033] In some other specific embodiments of this utility model, the isolation baffle 342 opens and closes by sliding. Specifically, a guide rail is provided on the opening side of the test chamber 34, and the isolation baffle 342 cooperates with the guide rail through a slider or roller, allowing it to slide in the horizontal or vertical direction, thereby opening or closing the test chamber 341 like a sliding door. The mounting base 31 is fixedly installed on the inner side of the isolation baffle 342. When testing is required, the isolation baffle 342 slides open along the rail, exposing the mounting base 31, and the transfer mechanism 4 places the clutch on the mounting base 31; subsequently, the isolation baffle 342 slides closed, bringing the mounting base 31 into the test chamber 341; finally, the mounting base 31 also performs axial movement, completing the docking with the drive mechanism 2.

[0034] In some specific embodiments of this utility model, the isolation baffle 342 adopts a vertical lifting motion. Specifically, the opening of the test chamber 34 is located on the front, and the isolation baffle 342 can move up and down. The mounting base 31 is fixed to the inner side of the lifting isolation baffle 342. During operation, the isolation baffle 342 is raised to open the test chamber 341 for loading and unloading; after the test workpiece is in place, the isolation baffle 342 is lowered to seal the opening and accommodate the mounting base 31 in the chamber, followed by axial docking.

[0035] In some specific embodiments of this utility model, a fixing component 35 is provided on the mounting base 31, and the fixing component 35 is configured to fix the test workpiece on the mounting base 31.

[0036] like Figure 3 and Figure 4 As shown, the fixing component 35 includes a first driving member 351 and a pressure claw 352 connected to its output end. When the isolation baffle 342 is opened and the transfer mechanism 4 places the wet dual clutch 5 under test on the mounting base 31, the first driving member 351 immediately actuates, driving the pressure claw 352 to move downwards in the vertical direction, ultimately pressing the wet dual clutch 5 under test stably and fitting it against the upper positioning surface of the mounting base 31. Thus, by applying a clamping force to the wet dual clutch 5 under test in the vertical direction, it is ensured that the test workpiece will not shift or loosen during subsequent flipping and axial movement, thereby providing a reliable positioning guarantee for high-precision power docking.

[0037] Specifically, the first driving component 351 is one of a cylinder, a hydraulic cylinder, and a servo motor.

[0038] In some other specific embodiments of this utility model, the fixing component 35 may adopt a pneumatic clamping claw 352 structure, which includes at least one pair of clamping claws 352 driven by a fixed drive cylinder. When the wet dual clutch 5 under test is placed in a predetermined position on the mounting base 31 by the transfer mechanism 4, the fixed drive cylinder is activated to drive the clamping claws 352 to radially clamp from the outside of the clutch or a specific slot.

[0039] In some specific embodiments of this utility model, the fixing component 35 can adopt a hydraulic locking structure, which includes at least one hydraulic locking cylinder disposed in the mounting base 31. When the clutch is in place, the locking cylinder drives the locking pin or locking block to extend and embed into the corresponding process hole or groove of the clutch housing, so as to effectively prevent the workpiece from making micro-movements or displacements during the test.

[0040] In some specific embodiments of this utility model, the pressure supply oil circuit 32 includes a first oil circuit 321 and a second oil circuit 322. The first oil circuit 321 is configured to independently control the engagement of the external clutch of the test workpiece, and the second oil circuit 322 is configured to independently control the engagement of the internal clutch of the test workpiece.

[0041] like Figure 4 As shown, the mounting base 31 is connected to a first oil passage 321 for independently controlling the outer clutch of the tested wet dual clutch 5, a second oil passage 322 for independently controlling the inner clutch of the tested wet dual clutch 5, and a lubricating oil passage 33 for lubricating the tested wet dual clutch 5.

[0042] like Figure 4 As shown, the mounting base 31 integrates a multi-channel oil passage system with independent functions, specifically including a first oil passage 321, a second oil passage 322, and a lubrication oil passage 33. It should be noted that the three oil passages automatically connect to the corresponding hydraulic interfaces on the tested wet dual-clutch 5 through the internal structure of the mounting base 31 during testing. The first oil passage 321 and the second oil passage 322 are configured to independently control the engagement and disengagement of the outer and inner clutches of the tested wet dual-clutch 5, thereby accurately simulating the interactive logic and dynamic hydraulic response of the two clutches working alternately during actual gear shifting. The lubrication oil passage 33 is responsible for continuously guiding oil to the friction elements of the tested wet dual-clutch 5, cooling and lubricating them to reproduce its real working environment in the closed oil chamber.

[0043] In some specific embodiments of this utility model, the mounting base 31 is provided with a first engagement external spline 311 and a second engagement external spline 312. The first engagement external spline 311 is configured to engage the inner clutch output shaft of the test workpiece, and the second engagement external spline 312 is configured to engage the outer clutch output shaft of the test workpiece.

[0044] like Figure 4 As shown, with the top of the mounting base 31 in the open state of the isolation baffle 342, a clearance groove adapted to the wet dual clutch 5 under test is provided on the mounting surface of the mounting base 31. A connecting shaft is provided at the center of the clearance groove. The end of the connecting shaft is coaxially provided with a first engagement external spline 311 and a second engagement external spline 312. The first engagement external spline 311 can accurately insert and engage the output shaft of the inner clutch of the wet dual clutch 5 under test, while the second engagement external spline 312 simultaneously inserts and engages its outer clutch output shaft. This provides a rigid connection path for the drive mechanism 2 to transmit test torque to the inner and outer clutches, ensuring that the inner and outer clutches can operate independently or alternately during the test, thereby truly simulating the shifting conditions of the real vehicle. On the other hand, it also constitutes a key channel for the pressure oil circuit 32 and the lubrication oil circuit 33 to reach the interior of the wet dual clutch 5.

[0045] In some specific embodiments of this utility model, the drive mechanism 2 includes a drive motor 21, a torque sensor 22, a spindle box 23, and a fixed bushing 24 mounted on the frame 1. The drive motor 21, torque sensor 22, spindle box 23, and fixed bushing 24 are connected in sequence, as shown below. Figure 5As shown, the power flow originates from the drive motor 21, passes sequentially through the torque sensor 22 and the spindle box 23, and is finally output to the tested wet dual clutch 5 via the fixed bushing 24. This integrated drive layout not only ensures smooth and efficient power transmission but also enables direct online measurement of key test parameters. Specifically, the drive motor 21 serves as the core power source, providing the rotational motion and torque required for testing; the torque sensor 22 monitors and provides feedback on torque and speed signals during the transmission process in real time and accurately, providing key data for performance evaluation; the spindle box 23 acts as a support and transmission hub; and the fixed bushing 24 at the end serves as a standard interface, ensuring a reliable and coaxial transmission connection with the input end of the clutch.

[0046] Furthermore, the drive motor 21 and the torque sensor 22, as well as the torque sensor 22 and the spindle box 23, are connected by couplings to compensate for alignment errors, absorb vibration shocks, and isolate additional stress from the torque sensor 22, thereby improving the accuracy and reliability of the test data.

[0047] In some specific embodiments of this utility model, the drive mechanism 2 further includes a cooling assembly 25, which is connected to the drive motor 21 and configured to circulate cooling of the drive motor 21. Specifically, the cooling assembly 25 includes a cooling water jacket arranged around the motor housing, and a cooling medium inlet pipe 251 and an outlet pipe 252 communicating with it. The cooling medium provided by the external cooling device is continuously pumped into the cooling water jacket through the inlet pipe 251. After efficient heat exchange with the heat generated by the motor, it becomes a high-temperature medium and is discharged from the outlet pipe 252, forming a closed-loop cooling cycle. Through continuous and efficient heat dissipation, the cooling assembly 25 can stabilize the operating temperature of the motor within the allowable range, thereby effectively preventing the efficiency reduction of the motor due to overheating and ensuring the reliability and durability of the drive mechanism 2 itself.

[0048] Specifically, the cooling medium includes, but is not limited to, water and oil.

[0049] In some specific embodiments of this utility model, the transfer mechanism 4 includes: a loading platform 41, which is disposed on the frame 1 and is configured to place the test workpiece; a transfer component 42, which is disposed on the frame 1; and a clamping component 43, which is disposed on the transfer component 42 and is configured to grip and release the test workpiece.

[0050] like Figure 2As shown, the loading platform 41 is fixed on the frame 1, and a positioning shaft 411 extends upward from its top for pre-positioning the wet dual clutch 5 under test in an initial position. The transfer assembly 42 is connected to the clamping assembly 43. The transfer assembly 42 is a two-dimensional moving module configured to drive the clamping assembly 43 to perform linear motion in at least one horizontal and one vertical direction. In this specific embodiment, the transfer assembly 42 can drive the clamping assembly 43 to perform two-dimensional movement in the X-axis and Z-axis directions. The clamping assembly 43 includes two grippers 432 controlled by a second drive member 431, which can perform opening and closing actions. In the initial state, the wet dual clutch 5 under test is placed on the positioning shaft 411 of the loading table 41. Then, the second drive member 431 drives the gripper 432 to open, while the transfer component 42 drives the gripper 432 to descend to a position level with the clutch. Next, the second drive member 431 drives the gripper 432 to close to hold the clutch. The transfer component 42 drives the gripper 432 to rise vertically, so that the wet dual clutch 5 under test is disengaged from the positioning shaft 411, and then it is horizontally transferred to the top of the mounting base 31. Finally, the transfer component 42 drives the gripper 432 to descend precisely, so that the wet dual clutch 5 under test is smoothly placed on the first engagement external spline 311 and the second engagement external spline 312 of the mounting base 31, completing the entire process of automated loading and precise positioning.

[0051] Specifically, the second drive unit 431 is one of a cylinder, a hydraulic cylinder, and a servo motor.

[0052] The following is based on Figures 1 to 6 The structure shown further illustrates the technical solution of this utility model embodiment. The operating principle of this utility model lies in the synergistic effect of the three major systems—drive mechanism 2, simulation mechanism 3, and transfer mechanism 4—to construct a highly simulated automated testing environment. Specifically, the transfer mechanism 4 automatically picks up the wet dual-clutch 5 under test and precisely places it on the mounting base 31, which integrates a pressure supply oil circuit 32 and a lubrication oil circuit 33. Subsequently, the mounting base 31, along with the flipping motion of the isolation baffle 342, enters the test chamber 34 and completes power docking with the drive mechanism 2. During testing, the drive mechanism 2 simulates engine power output, while the simulation mechanism 3 precisely controls the engagement and disengagement of the inner and outer clutches through independent oil circuits and continuously provides lubrication and cooling. This dynamically reproduces the complex operating conditions of the clutch in a real vehicle, such as torque transmission, friction heating, and dual-unit interaction, within a closed oil chamber, ultimately achieving an efficient, accurate, and reliable evaluation of the comprehensive performance of the wet dual-clutch 5.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A wet dual-clutch test bench device, characterized in that, include: Rack (1); A drive mechanism (2) is mounted on the frame (1) and is configured to provide test power to the test workpiece. The simulation mechanism (3) includes a mounting base (31) disposed on the frame (1). The mounting base (31) is configured to carry the test workpiece and drive the input end of the test workpiece to the output end of the drive mechanism (2). The mounting base (31) is provided with a pressure supply oil passage (32) and a lubrication oil passage (33). The pressure supply oil passage (32) is configured to provide engagement pressure to the test workpiece, and the lubrication oil passage (33) is configured to lubricate and cool the test workpiece. A transfer mechanism (4) is provided on the frame (1) and is configured to transport and position the test workpiece to the mounting base (31).

2. The wet dual-clutch test bench device according to claim 1, characterized in that, The simulation mechanism (3) also includes a test chamber (34), which is mounted on the frame (1) and forms a test cavity (341) inside. The output end of the drive mechanism (2) is located inside the test cavity (341), and the mounting base (31) can be accommodated in the test cavity (341).

3. The wet dual-clutch test bench device according to claim 2, characterized in that, The test chamber (34) is provided with an isolation baffle (342) that can be opened and closed. When the isolation baffle (342) is opened, the transfer mechanism (4) is allowed to transport the test workpiece to the mounting base (31). When the isolation baffle (342) is closed, the test chamber (341) is sealed.

4. The wet dual-clutch test bench device according to claim 3, characterized in that, The isolation baffle (342) can be flipped and installed on the test chamber (34). The mounting base (31) can move linearly relative to the isolation baffle (342). When the isolation baffle (342) is flipped and closed to accommodate the mounting base (31) in the test chamber (341), the mounting base (31) moves in a direction close to the drive mechanism (2) so that the input end of the test workpiece engages with the output end of the drive mechanism (2).

5. The wet dual-clutch test bench device according to claim 4, characterized in that, The mounting base (31) is provided with a fixing component (35), which is configured to fix the test workpiece on the mounting base (31).

6. The wet dual-clutch test bench apparatus according to any one of claims 1 to 5, characterized in that, The pressure supply oil circuit (32) includes a first oil circuit (321) and a second oil circuit (322). The first oil circuit (321) is configured to independently control the engagement of the external clutch of the test workpiece, and the second oil circuit (322) is configured to independently control the engagement of the internal clutch of the test workpiece.

7. The wet dual-clutch test bench device according to claim 6, characterized in that, The mounting base (31) is provided with a first engagement external spline (311) and a second engagement external spline (312). The first engagement external spline (311) is configured to engage the inner clutch output shaft of the test workpiece, and the second engagement external spline (312) is configured to engage the outer clutch output shaft of the test workpiece.

8. The wet dual-clutch test bench device according to claim 1, characterized in that, The drive mechanism (2) includes a drive motor (21), a torque sensor (22), a spindle box (23) and a fixed bushing (24) mounted on the frame (1). The drive motor (21), the torque sensor (22), the spindle box (23) and the fixed bushing (24) are connected in sequence.

9. The wet dual-clutch test bench device according to claim 8, characterized in that, The drive mechanism (2) further includes a cooling assembly (25) connected to the drive motor (21), and the cooling assembly (25) is configured to circulate cooling of the drive motor (21).

10. The wet dual-clutch test bench device according to claim 1, characterized in that, The transfer mechanism (4) includes: A loading platform (41) is provided on the frame (1), and the loading platform (41) is configured to place test workpieces; A transfer assembly (42) is mounted on the frame (1); A clamping assembly (43) is disposed on the transfer assembly (42), the clamping assembly (43) being configured to grip and release the test workpiece.

Images