A clutch testing device

Abstract

The utility model relates to a kind of clutch testing device, comprising: test box, it is enclosed to form the containing space for placing the clutch to be measured, the test box includes: box and lid, the lid is detachably sealed and assembled in box, the lid is set in the side of box away from driving mechanism;Driving mechanism, it includes: driving part, torque tester and shaft coupling, the power shaft of the driving part is connected with shaft coupling by torque tester, the shaft coupling is connected with the input end of the clutch to be measured;Oil circuit mechanism, it includes: oil storage tank, oil pump, oil return pump.The utility model is set by above, by the detachable lid and box set, the problem that the whole type test box is inconvenient to assemble and disassemble is avoided by split structure, lid is set in non-power side, avoid driving mechanism to occupy operating space, improve assembly efficiency.

Description

Technical Field

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

[0002] The clutch is located within the flywheel housing between the engine and the transmission. The clutch assembly is secured to the rear surface of the flywheel with screws, and the clutch's output shaft is the transmission's input shaft. During vehicle operation, the driver can depress or release the clutch pedal as needed to temporarily separate and gradually engage the engine and transmission, cutting off or transmitting power from the engine to the transmission. As a critical component of a vehicle, the clutch's performance stability and reliability are essential for safe operation. Therefore, precise testing of the clutch is a crucial step in ensuring its quality.

[0003] Traditional clutch testing methods typically involve assembling the gearbox with the central drivetrain, differential, final drive, and power take-off shaft into a transmission system before conducting offline testing. If a gearbox malfunction is detected, disassembly and repair are necessary. This assembly-based testing method is inconvenient and wastes time, manpower, and resources. Therefore, developing a reliable indoor testing device capable of quickly connecting gearboxes and collecting and comparing test data is crucial. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the problem that the existing clutch testing method requires disassembly and repair if a gearbox fault is found, which is to test the clutch after assembly. Thus, a clutch testing device is provided.

[0005] To solve the above-mentioned technical problems, this utility model provides a clutch testing device, comprising:

[0006] A test chamber, which is enclosed to form a receiving space for placing the clutch to be tested, the test chamber includes: a chamber body and a cover, the cover being detachably and sealed to the chamber body, the cover being disposed on the side of the chamber body away from the drive mechanism;

[0007] A drive mechanism includes: a drive component, a torque tester, and a coupling. The power shaft of the drive component is connected to the coupling via the torque tester, and the coupling is connected to the input end of the clutch to be tested.

[0008] The oil circuit mechanism includes: an oil reservoir, an oil supply pump, and a return pump. The oil reservoir is used to hold oil. The test chamber is provided with an oil inlet and an oil return. The oil supply pump is used to send oil from the oil reservoir through the oil inlet to the oil inlet of the clutch under test. The oil return pump is used to send the oil in the test chamber back to the oil reservoir through the oil return.

[0009] In one embodiment of this utility model, the height of the oil inlet hole relative to the bottom of the test chamber is less than the height of the oil return hole relative to the bottom of the test chamber.

[0010] In one embodiment of this utility model, the housing and the cover are respectively embedded with at least two sets of bearing assemblies, and the at least two sets of bearing assemblies are respectively sleeved on the input shaft and output shaft of the clutch to be tested.

[0011] In one embodiment of this utility model, a stepped hole is provided on one side of the box body, and a cover plate is detachably sealed and embedded in the stepped hole, and the accommodating space is connected to the outside through the stepped hole.

[0012] In one embodiment of this utility model, a connecting member is fixedly connected to the end of the coupling, and the connecting member has a keyway. The connecting member is connected to the input shaft key of the clutch to be tested through the keyway.

[0013] In one embodiment of this utility model, the oil inlet includes a first sub-hole and a second sub-hole. The input port of the oil pump is connected to the oil storage tank, and the output port of the oil pump is connected to an oil circuit distributor. The output port of the oil circuit distributor is connected to the first sub-hole and the second sub-hole respectively. The first sub-hole is connected to the first oil hole of the output shaft of the clutch under test, and the second sub-hole is connected to the second oil hole in the middle of the clutch under test.

[0014] In one embodiment of this utility model, the output port of the oil pump is also connected to a filter and a heat exchanger, the output port of the heat exchanger is connected to an oil distributor, and the oil pump, oil tank, filter, heat exchanger and oil distributor are all connected by pipelines.

[0015] In one embodiment of this utility model, a control valve is provided between the oil circuit distributor and the second sub-hole.

[0016] In one embodiment of this utility model, the return oil pump is connected to the return oil hole and the oil storage tank through a pipeline, and the oil storage tank is equipped with a level gauge.

[0017] In one embodiment of this utility model, it further includes a first bracket, a second bracket, and a third bracket. The driving component, the torque tester, and the test box are respectively installed on the first bracket, the second bracket, and the third bracket, and the heights of the driving component, the torque tester, and the test box relative to the ground correspond to each other.

[0018] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects:

[0019] This invention discloses a clutch testing device that houses the clutch under test within a test chamber. Power is transmitted to the clutch input shaft via a drive unit, through a torque tester and a coupling, driving the clutch to rotate. The coupling connects the input shaft to the torque tester, which collects torque data in real time, reflecting the clutch's torque transmission characteristics. The coupling compensates for axial and radial offset errors between the clutch input shaft and the torque tester. The test chamber prevents oil from splashing onto the outside during high-speed rotation of the clutch and collects the oil. An oil return pump pumps the overflowing oil back to the reservoir for reuse. The detachable cover and chamber design, a split structure, avoids the inconvenience of loading and unloading a single test chamber. The cover is located on the non-power side, preventing the drive mechanism from occupying operating space and improving loading and unloading efficiency. Attached Figure Description

[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the structure of the testing device of this utility model;

[0022] Figure 2 This is a schematic diagram of the drive mechanism of this utility model;

[0023] Figure 3 This is a structural schematic diagram of the test box and oil circuit mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the test box of this utility model;

[0025] Figure 5 This is a schematic diagram of the oil circuit mechanism of this utility model;

[0026] Figure 6 This is a schematic diagram of the cover and the clutch to be tested in this utility model.

[0027] Explanation of reference numerals in the accompanying drawings: 1. Drive component; 2. First bracket; 3. Torque tester; 4. Second bracket; 5. Test box; 51. Box body; 52. Cover; 53. Cover plate; 54. Second sub-hole; 55. Pin; 56. First sub-hole; 57. Oil return hole; 6. Third bracket; 7. Oil supply pump; 8. Oil return pump; 9. Clutch under test; 91. Input shaft; 92. Output shaft; 93. Fixing assembly; 94. Positioning hole; 95. Second oil hole; 96. First oil hole; 10. Coupling; 11. Connecting component; 12. Heat exchanger; 13. Filter; 14. Bearing assembly; 15. Control valve; 16. Oil inlet; 17. Oil distributor; 18. Level gauge; 19. Oil reservoir; 20. Oil return assembly. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0029] Example

[0030] Reference Figures 1-6 As shown, a clutch testing device of this utility model includes:

[0031] The test chamber 5 is enclosed to form a receiving space for placing the clutch 9 to be tested;

[0032] The drive mechanism includes: a drive component 1, a torque tester 3, and a coupling 10. The power shaft of the drive component 1 is connected to the coupling 10 through the torque tester 3, and the coupling 10 is connected to the input end of the clutch 9 to be tested.

[0033] The oil circuit mechanism includes: an oil reservoir 19, an oil supply pump 7, and a return pump 8. The oil reservoir 19 is used to hold oil. The test chamber 5 is provided with an oil inlet and an oil return hole 57. The oil supply pump 7 is used to send oil from the oil reservoir 19 through the oil inlet and into the oil inlet of the clutch 9 under test. The oil return pump 8 is used to send the oil in the test chamber 5 back to the oil reservoir 19 through the oil return hole 57. The height of the oil inlet relative to the bottom of the test chamber 5 is less than the height of the oil return hole 57 relative to the bottom of the test chamber 5.

[0034] The clutch testing device of this utility model includes a test chamber 5 that houses the clutch 9 to be tested. A drive unit 1 transmits power to the clutch input shaft 91 via a torque tester 3 and a coupling 10, driving its operation. The coupling 10 connects the input shaft 91 to the torque tester 3, which collects torque data in real time to reflect the clutch torque transmission characteristics. The coupling 10 compensates for axial and radial offset errors between the input shaft 91 of the clutch 9 and the torque tester 3. An oil pump 7 delivers oil through an inlet hole into the oil inlet of the clutch 9 in the test chamber 5, providing sufficient lubrication, hydraulic pressure, or cooling oil to the corresponding parts of the clutch. The test chamber 5 prevents oil from splashing onto the outside during high-speed rotation of the clutch and collects the oil. An oil return pump 8 pumps the overflowing oil back to the oil storage tank 19 through an oil return hole 57 for reuse.

[0035] The enclosed test chamber 5 prevents oil splashing and impurity intrusion, protecting the environment and personnel safety; the drive component 1 is a servo motor, which, combined with the torque tester 3, enables controllable power and real-time torque monitoring, ensuring data accuracy; the flexible coupling 10 reduces coaxiality requirements and improves adaptability; the oil circulation system enables oil reuse, reducing costs; the height difference between the oil inlet and outlet 57 ensures sufficient lubrication, while gravity is used to allow impurities to settle, reducing circulation pollution and extending the life of oil and components.

[0036] Reference Figures 1-4 As shown, the test chamber 5 includes a chamber body 51 and a cover 52. The cover 52 is detachably and sealed to the chamber body 51, and is located on the side of the chamber body 51 away from the drive mechanism. The chamber body 51 serves as the main structure, carrying the clutch and connecting to the drive mechanism. The cover 52 serves as a sealing end cap located on the side away from the drive mechanism. The detachable design allows for the installation and removal of the clutch from the non-powered side, avoiding interference from the drive mechanism. The sealed assembly ensures the airtightness of the test chamber 5, preventing oil leakage and ensuring normal operation of the oil circuit circulation. The chamber body 51 is a cuboid shell structure with one open end, facing away from the drive mechanism. The cover 52 is connected to the chamber body 51 by bolts evenly distributed around its circumference. The bolts pass through the through holes in the cover 52 and engage with the threaded holes in the chamber body 51. When tightened, the cover 52 fits snugly against the chamber 51, and the sealing element is compressed to achieve a seal. The cover 52 is provided with a handle for easy installation and removal. When installing the clutch, unscrew the bolts and remove the cover 52. Place the clutch into the housing 51 through the opening and adjust its position so that the input shaft 91 is aligned with the coupling 10. After confirming that the installation is in place, align the protrusion of the cover 52 with the sealing groove and lower it. Tighten the bolts in sequence to ensure that the seal is fully compressed. After testing, unscrew the bolts and remove the cover 52 to take out the clutch.

[0037] Reference Figure 4 As shown, the housing 51 and cover 52 are each fitted with at least two sets of bearing assemblies 14, which are respectively sleeved on the input shaft 91 and output shaft 92 of the clutch 9 under test. When the clutch shaft rotates at high speed, if there is a lack of support, it will shift due to gravity and centrifugal force, causing wear or even damage to the coupling 10 and the shaft. The bearing assembly 14 provides radial support, reduces friction, and ensures coaxiality. It also has a sealing function to prevent oil in the test chamber 5 from entering the bearing or the bearing grease from contaminating the oil, thus avoiding damage to components and oil contamination. When the clutch is installed, the input shaft 91 passes through the bearing assembly 14 in the housing 51, and the output shaft 92 passes through the bearing assembly 14 in the cover 52. The inner ring of the bearing rotates with the shaft, while the outer ring is fixed in the bearing seat, providing radial support and reducing friction. The lip of the skeleton oil seal elastically deforms with the slight fluctuations of the shaft surface to maintain a seal. The grease in the bearing seat fills the gap between the oil seal and the bearing, enhancing the seal and lubricating the bearing.

[0038] Reference Figures 3-4As shown, a stepped hole is provided on one side of the housing 51. A cover plate 53 is detachably and sealed within the stepped hole, and the accommodating space communicates with the outside through the stepped hole. After the clutch is installed, if it is necessary to inspect the internal components or adjust the position, disassembling the entire cover 52 is time-consuming and may affect the drive mechanism connection. The stepped hole and cover plate 53 provide a partial maintenance channel, allowing operators to directly access the clutch without removing the cover 52, thus improving maintenance efficiency. The sealing design of the cover plate 53 ensures the airtightness of the test chamber 5 and prevents oil leakage.

[0039] Reference Figure 2 As shown, a connecting member 11 is fixedly connected to the end of the coupling 10. The connecting member 11 has a keyway, and it is keyed to the input shaft 91 of the clutch 9 under test via the keyway. During installation, the keyway of the input shaft 91 is aligned with the keyway of the connecting member 11, and the key is inserted into the inner hole until it is fully embedded. When the coupling 10 rotates, the key transmits torque to the input shaft 91. The keyed connection ensures reliable torque transmission, avoids slippage, and guarantees accurate data. The transition fit ensures a tight connection and reduces radial vibration. The connecting member 11 is adaptable to shafts of different specifications, improving the versatility of the device and reducing replacement costs. The standard flat key reduces parts costs, facilitates assembly, and improves testing efficiency.

[0040] Reference Figures 3-4 As shown, the oil inlet includes a first sub-hole 56 and a second sub-hole 54. The input port of the oil pump 7 is connected to the oil reservoir 19, and the output port of the oil pump 7 is connected to an oil distributor 17. The output port of the oil distributor 17 is connected to both the first sub-hole 56 and the second sub-hole 54. The first sub-hole 56 is connected to the first oil hole 96 of the output shaft 92 of the clutch 9 under test, and the second sub-hole 54 is connected to the second oil hole 95 in the middle of the clutch 9 under test. To meet the lubrication and cooling needs of different parts of the clutch, the oil inlet is divided into a first sub-hole 56 and a second sub-hole 54. The oil is distributed to the output shaft 92 and the middle fixed structure through the oil distributor 17 to achieve targeted oil supply. The oil pump 7 pressurizes the oil and delivers it to the distributor. The distributor divides the oil into two paths according to a preset ratio: one path enters the first oil hole 96 of the output shaft 92 through the first sub-hole 56; the other path enters the second oil hole 95 in the middle through the second sub-hole 54. During testing, the flow ratio can be changed by the oil circuit distributor 17 to adapt to different working conditions. A fixing component 93 is provided in the middle of the clutch. The fixing component 93 is provided with a positioning hole 94. The housing 51 or cover 52 is provided with a pin 55 that fits into the positioning hole 94.

[0041] Reference Figure 5As shown, the output port of the oil pump 7 is also connected to a filter 13 and a heat exchanger 12. The output port of the heat exchanger 12 is connected to an oil distributor 17. The oil pump 7, oil tank 19, filter 13, heat exchanger 12, and oil distributor 17 are all connected by pipelines. To ensure oil cleanliness and temperature stability, the output port of the oil pump 7 is sequentially connected to the filter 13 and the heat exchanger 12 for oil filtration and heat exchange, ensuring lubrication and temperature regulation performance. Metal shavings, dust, and other impurities may mix into the oil during circulation, causing wear on clutch components or clogging of the oil passages. The heat generated by the clutch operation raises the oil temperature, reduces viscosity, and leads to performance degradation. Conversely, the oil viscosity may be too high when the ambient temperature is too low. The oil pumped by the oil pump 7 first passes through the filter 13 to remove impurities, then enters the heat exchanger 12 for heat exchange to maintain the temperature within a preset range, and then enters the distributor.

[0042] Reference Figure 5 As shown, a control valve 15 is provided between the oil distributor 17 and the second sub-hole 54. The control valve 15 is used to control the oil quantity in the middle of the flow clutch. The control valve 15 is continuously adjustable to adapt to different working conditions and improve flexibility; its fast response allows the oil supply to follow temperature changes in real time, ensuring cooling effect; the one-way valve prevents backflow and ensures oil circuit stability; brass and fluororubber enhance the valve's corrosion resistance and sealing, extending its service life.

[0043] Reference Figure 6 As shown, the return oil pump 8 is connected to the return oil hole 57 and the oil storage tank 19 via a pipeline. The oil storage tank 19 is equipped with a level gauge 18. Directly discharging overflowing oil would be wasteful and pollute the environment. The return oil pump 8 pumps the oil back to the oil storage tank 19 for recycling, and the level gauge 18 monitors the liquid level in real time. Once the liquid level reaches the height of the return oil hole 57, the return oil pump 8 starts, pumping the oil back to the oil storage tank 19. In some embodiments, an oil return assembly 20 is provided on the oil storage tank 19. The oil return assembly 20 is a gas-liquid separator with a gas-liquid separation chamber. The oil return pump 8 extracts air from the gas-liquid separation chamber. The separation chamber is designed with a liquid inlet at the top and a liquid outlet at the bottom. Oil enters from the top, and the air inlet is connected to the top of the separation chamber. Air is extracted from the top. Due to its high density, the oil settles at the bottom and cannot enter the oil return pump, thus avoiding direct contact with the oil return pump. The oil return pump 8 only extracts air, and the oil flows down into the oil storage tank 19 within the separation chamber without entering the oil return pump 8. The gas-liquid separator is connected to the oil return pump 8, the oil return hole 57, and the oil storage tank 19 via pipes. The oil return pump 8 provides negative pressure to the gas-liquid separator, which causes the oil at the oil return hole 57 to be drawn into the gas-liquid separator and flow into the oil storage tank 19 under gravity. The oil delivery pump 7 is connected to the internal space of the oil storage tank 19 through the upper oil port 16, and preferably extends to a lower position through a pipeline. The return oil pump 8 is connected to the internal space of the oil storage tank 19 through the lower oil port.

[0044] Reference Figure 1As shown, the system also includes a first bracket 2, a second bracket 4, and a third bracket 6. The drive component 1, the torque tester 3, and the test box 5 are respectively mounted on the first bracket 2, the second bracket 4, and the third bracket 6. The heights of the drive component 1, the torque tester 3, and the test box 5 relative to the ground correspond to each other. Ensuring the coaxiality of the drive component 1, the torque tester 3, and the test box 5 ensures stable power transmission: excessive coaxiality error will cause the coupling 10 to bear additional bending moment, increased vibration, increased torque measurement error, and even damage to components; the bracket supports the components, and by adjusting the height, ensures that the axes coincide, reducing errors.

[0045] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A clutch testing device, characterized by, include: A test chamber, which is enclosed to form a receiving space for placing the clutch to be tested, the test chamber includes: a chamber body and a cover, the cover being detachably and sealed to the chamber body, the cover being disposed on the side of the chamber body away from the drive mechanism; A drive mechanism includes: a drive component, a torque tester, and a coupling. The power shaft of the drive component is connected to the coupling via the torque tester, and the coupling is connected to the input end of the clutch to be tested. The oil circuit mechanism includes: an oil reservoir, an oil supply pump, and a return pump. The oil reservoir is used to hold oil. The test chamber is provided with an oil inlet and an oil return. The oil supply pump is used to send oil from the oil reservoir through the oil inlet to the oil inlet of the clutch under test. The oil return pump is used to send the oil in the test chamber back to the oil reservoir through the oil return hole.

2. A clutch testing device according to claim 1, wherein: The height of the oil inlet hole relative to the bottom of the test chamber is less than the height of the oil return hole relative to the bottom of the test chamber.

3. A clutch testing device according to claim 1, wherein: The housing and the cover are each fitted with at least two sets of bearing assemblies, and the at least two sets of bearing assemblies are respectively sleeved on the input shaft and output shaft of the clutch to be tested.

4. A clutch testing device as claimed in claim 1, wherein: A stepped hole is provided on one side of the box, and a cover plate is detachably and sealed in the stepped hole. The accommodating space is connected to the outside through the stepped hole.

5. A clutch testing device as claimed in claim 1, wherein: The coupling is fixedly connected to a connector at its end. The connector has a keyway and is connected to the input shaft of the clutch under test via the keyway.

6. A clutch testing device as claimed in claim 1, wherein: The oil inlet includes a first sub-hole and a second sub-hole. The input port of the oil pump is connected to the oil storage tank. The output port of the oil pump is connected to an oil circuit distributor. The output port of the oil circuit distributor is connected to the first sub-hole and the second sub-hole respectively. The first sub-hole is connected to the first oil hole of the output shaft of the clutch under test, and the second sub-hole is connected to the second oil hole in the middle of the clutch under test.

7. A clutch testing device according to claim 6, wherein: The output port of the oil pump is also connected to a filter and a heat exchanger. The output port of the heat exchanger is connected to an oil distributor. The oil pump, oil tank, filter, heat exchanger and oil distributor are all connected by pipelines.

8. A clutch testing device as claimed in claim 6, wherein: A control valve is provided between the oil distributor and the second sub-hole.

9. A clutch testing device as claimed in claim 1, wherein: The return oil pump is connected to the return oil hole and the oil storage tank via a pipeline, and the oil storage tank is equipped with a level gauge.

10. A clutch testing device as claimed in claim 1, wherein: It also includes a first bracket, a second bracket, and a third bracket. The drive component, the torque tester, and the test box are respectively installed on the first bracket, the second bracket, and the third bracket. The heights of the drive component, the torque tester, and the test box relative to the ground correspond to each other.

Images