Clutch testing device

Abstract

The utility model discloses a clutch testing device which comprises a first testing mechanism, the first testing mechanism comprises a first rotating shaft, the first rotating shaft is connected with an input shaft of a clutch, and the first rotating shaft can rotate around the axis of the first rotating shaft. The sealing plug component comprises a fixing sleeve, the fixing sleeve is fixed to the end of the first rotating shaft, an inserting groove allowing the end of an input shaft of the clutch to be inserted is formed in the fixing sleeve, a first sealing ring and an extrusion block are arranged in the inserting groove, and a sealed extrusion cavity is formed by one end of the extrusion block and the fixing sleeve; the first sealing ring is located at the other end of the extrusion block and can be connected to an input shaft of the clutch in a sleeving mode, and the extrusion block can move in the axial direction of the insertion groove to extrude the first sealing ring. And the sealing oil way is jointly arranged on the fixing sleeve and the first rotating shaft, the sealing oil way communicates with the extrusion cavity, and the sealing oil way is used for guiding hydraulic oil to push the extrusion block to move. The sealing performance of the clutch and the testing mechanism is greatly improved through the sealing plug.

Description

Technical Field

[0001] The utility model relates to the technical field of clutch processing and detection, in particular to a clutch testing device. Background Art

[0002] The clutch is a crucial component of a vehicle, critically impacting its handling, stability, and ride comfort. Different vehicle models have varying technical requirements for clutches, so each clutch must undergo a series of inspections and tests before being used in a vehicle. Clutch inspections specifically include torque testing, which requires lubricating the clutch. The clutch has an internal lubrication circuit that lubricates the bearings as the clutch input shaft rotates. However, this lubricating oil can easily leak from the connection between the clutch and the testing device. Utility Model Content

[0003] In order to overcome the above shortcomings, the purpose of the present invention is to provide a clutch testing device for functional testing of the clutch. Through the structure of the sealing plug, the sealing performance of the connection between the clutch and the testing mechanism is greatly improved while achieving oil supply.

[0004] In order to achieve the above objectives, the technical solution adopted by the present invention is: a clutch testing device includes a first testing mechanism, wherein the first testing mechanism includes:

[0005] a first rotating shaft connected to the input shaft of the clutch, and capable of rotating around its own axis when driven by a first driving member;

[0006] a sealing plug component, the sealing plug component including a fixed sleeve, the fixed sleeve being fixed to the end of the first rotating shaft, the fixed sleeve being provided with a slot for inserting the end of the input shaft of the clutch, a first sealing ring and an extrusion block being arranged in the slot, one end of the extrusion block and the fixed sleeve forming a sealed extrusion cavity, the first sealing ring being located at the other end of the extrusion block and being sleeved on the input shaft of the clutch, the extrusion block being able to move axially along the slot to extrude the first sealing ring;

[0007] A sealed oil circuit is provided on the fixed sleeve and the first rotating shaft. The sealed oil circuit is communicated with the extrusion cavity. The sealed oil circuit is used to introduce hydraulic oil to push the extrusion block to move.

[0008] The beneficial effect of this utility model lies in: an extrusion block is added to the slot, and the fixed sleeve and one end of the pressure block form an extrusion cavity. The extrusion block is movable. When the pressure in the extrusion cavity is high, it can push the pressure block toward the first sealing ring, causing the first sealing ring to produce greater deformation and improve the sealing effect. During this process, hydraulic oil is increased in the extrusion cavity through the sealing oil circuit, thereby changing the pressure in the extrusion cavity.

[0009] Specifically, the outer casing of the first rotating shaft is provided with a first annular oil sleeve, which is rotatably connected to the first rotating shaft. A sealed first annular oil groove is formed between the first annular oil sleeve and the first rotating shaft, and the first annular oil groove is in communication with the sealed oil passage. The first rotating shaft and the sealing plug are rotatable, and the provision of the first annular oil sleeve enables rotary oil supply.

[0010] Furthermore, the sealing plug component also includes a clamping assembly, which includes a clamping block, a second sealing ring, and a spring. A guide groove communicating with the slot is defined at the center of the fixed sleeve, along which the clamping block slides. The second sealing ring is positioned at the end of the clamping block adjacent to the slot. The spring is embedded within the guide groove and pushes the clamping block against the end of the input shaft. The clamping assembly compresses the fixed shaft, simultaneously achieving a seal with the input shaft end and preventing oil leakage within the lubrication channel, further enhancing the sealing effect.

[0011] Furthermore, the pressing block is coaxial with the input shaft inserted into the slot, and the pressure exerted by the pressing block on the second sealing ring is relatively uniform.

[0012] Furthermore, an oil inlet passage is provided on the first rotating shaft, the fixed sleeve, and the pressure block. The oil inlet passage is connected to the lubricating oil passage on the clutch and is used to introduce lubricating oil into the lubricating oil passage of the clutch. The lubricating oil required for testing is provided to the clutch through the oil inlet passage.

[0013] Furthermore, the outer sleeve of the first rotating shaft is connected to a second annular oil sleeve, the second annular oil sleeve is rotatably connected to the first rotating shaft, a sealed second annular oil groove is formed between the second annular oil sleeve and the first rotating shaft, and the second annular oil groove is connected to the oil inlet circuit.

[0014] Furthermore, an oil outlet passage is provided on the first rotating shaft and the fixed sleeve. The oil outlet passage is connected to the lubricating oil passage on the clutch and is used to discharge the lubricating oil in the lubricating oil passage.

[0015] Furthermore, the outer sleeve of the first rotating shaft is connected to a third annular oil sleeve, the third annular oil sleeve is rotatably connected to the first rotating shaft, a sealed third annular oil groove is formed between the third annular oil sleeve and the first rotating shaft, and the third annular oil groove is connected to the oil outlet passage.

[0016] Furthermore, a fixing plate is fixed to the outer side of the fixing sleeve, and the fixing plate is detachably connected to the connecting plate fixed on the input shaft. The fixing plate and the connecting plate are fixed to achieve preliminary fixation of the first testing mechanism and the clutch.

[0017] Furthermore, the first rotating shaft passes through a fixing seat and is rotatably connected to the fixing seat. One end of the first rotating shaft away from the sealing plug component is connected to the first driving member through a torque sensor and a coupling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0019] Figure 2 This is a cross-sectional view along the axial direction of the oil outlet passage in an embodiment of the present utility model;

[0020] Figure 3 This is a cross-sectional view along the axis of the sealing oil circuit in the embodiment of the present utility model;

[0021] Figure 4 This is a cross-sectional view of the sealing plug component along the axis of the sealing oil circuit in the embodiment of the present utility model;

[0022] Figure 5 Schematic diagram of the structure of the clutch in the embodiment of the present utility model.

[0023] In the picture:

[0024] 1. First rotating shaft;

[0025] 2. Sealing plug component; 21. Fixing sleeve; 211. Slot; 22. First sealing ring; 23. Extrusion block; 24. Extrusion cavity; 25. Guide groove; 261. Pressing block; 262. Second sealing ring; 263. Spring;

[0026] 3. Sealing oil circuit; 31. First annular oil sleeve; 311. First annular oil groove;

[0027] 4. Oil inlet passage; 41. Second annular oil sleeve; 411. Second annular oil groove;

[0028] 5. Oil outlet passage; 51. Third annular oil sleeve; 511. Third annular oil groove;

[0029] 6. Fixed plate;

[0030] 7. Fixed seat;

[0031] 8. Clutch; 81. Input shaft; 82. Flywheel; 83. Connecting plate; 84. Friction assembly; 85. Lubrication oil circuit. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0033] Example

[0034] The utility model is a clutch 8 testing device, which is used for testing the clutch 8. Figure 5 As shown, clutch 8 includes an input shaft 81, with a flywheel 82 attached to its outer sleeve. A bearing is interposed between flywheel 82 and input shaft 81. A connecting disc 83 extends circumferentially outward from input shaft 81. Connecting disc 83 and the fixed shaft are integrally formed, with a friction assembly 84 interposed between the connecting disc 83 and flywheel 82. A lubricating oil passage 85 is provided within clutch 8. During operation, clutch 8 requires lubricating oil to flow into lubricating oil passage 85. Lubricating oil passage 85 comprises a lubrication channel disposed along the axis of input shaft 81.

[0035] See attached Figure 1 As shown, the clutch 8 test device includes a first testing mechanism, and the first detection mechanism includes a first rotating shaft 1, a sealing plug component 2 and a sealing oil circuit 3. The first rotating shaft 1 is used to drive the input shaft 81 to rotate, and the sealing plug is sealed with the input shaft 81. On the one hand, it connects the rotating shaft and the input shaft 81, and on the other hand, it is used to play a sealing role. During the closed-loop test, the lubricating oil in the lubricating oil circuit 85 leaks from between the sealing plug component 2 and the input shaft 81.

[0036] See attached Figure 3 and attached Figure 4As shown, the first rotating shaft 1 is connected to the input shaft 81 of the clutch 8 and can rotate about its own axis when driven by a first driving member. The sealing plug component 2 includes a fixed sleeve 21, which is fixed to the end of the first rotating shaft 1. The fixed sleeve 21 defines a slot 211 for inserting the end of the input shaft 81 of the clutch 8. A first sealing ring 22 and an extrusion block 23 are disposed within the slot 211. One end of the extrusion block 23 and the fixed sleeve 21 form a sealed extrusion cavity 24. The first sealing ring 22 is located at the other end of the extrusion block 23 and can be sleeved onto the input shaft 81 of the clutch 8. The extrusion block 23 can move axially along the slot 211 to squeeze the first sealing ring 22. The fixed sleeve 21 and the first rotating shaft 1 are both provided with the sealing oil circuit 3, which is in communication with the extrusion cavity 24 and is used to introduce hydraulic oil to drive the extrusion block 23 to move.

[0037] In this embodiment, when the input shaft 81 is inserted into the slot 211, the first sealing ring 22 is sleeved on the input shaft 81 to achieve sealing at the connection between the fixed sleeve 21 and the input shaft 81, but the sealing effect is not good at this time. Therefore, an extrusion block 23 is added to the slot 211, and an extrusion cavity 24 is formed at one end of the fixed sleeve 21 and the pressure block. A groove for the first sealing ring 22 to be embedded is formed between the fixed sleeve 21 and the other end of the extrusion block 23. The extrusion block 23 can move. When the pressure in the extrusion cavity is high, it can push the pressure block toward the first sealing ring 22, allowing the first sealing ring 22 to produce greater deformation and improve the sealing effect. In this process, the hydraulic oil is increased in the extrusion chamber through the sealing oil circuit 3. The flow direction of the sealing oil is shown in the attached figure. Figure 3 As shown by the hollow arrows in FIG, the sealing oil changes the pressure in the extrusion chamber.

[0038] Since the first rotating shaft 1 and the sealing plug 2 rotate, the first oil supply component that provides hydraulic oil to the sealing oil passage is typically located outside the test device and remains stationary. Therefore, the oil supply passage needs to be rotated to provide oil. In this embodiment, a first annular oil sleeve 31 is located outside the first rotating shaft 1. The first annular oil sleeve 31 is rotationally connected to the first rotating shaft 1, meaning that the first annular oil sleeve 31 is stationary and does not rotate synchronously. A sealed first annular oil groove 311 is formed between the first annular oil sleeve 31 and the first rotating shaft 1. The first annular oil groove 311 is in communication with the sealing oil passage 3.

[0039] The first oil supply member is connected to the first annular oil groove 311 through a first pipe, directing hydraulic oil into the first annular oil groove 311, and then supplying oil to the rotating sealing oil passage through the first annular oil groove 311. As shown in the drawings, the sealing oil passages are evenly distributed in the circumferential direction. In this embodiment, two sealing oil passages are provided.

[0040] Each sealed oil passage includes a first portion opened on the fixed sleeve 21 and a second portion opened on the first rotating shaft 1 , the two portions are butted together, and a third sealing ring is provided between the fixed sleeve 21 and the first rotating shaft 1 to seal the butt joint of the two portions.

[0041] See attached Figure 2 and attached Figure 4 As shown, the sealing plug component 2 also includes a pressing assembly, which is pressed against the end of the input shaft 81 inserted into the slot 211. The pressing assembly includes a pressing block 261, a second sealing ring 262, and a spring 263. A guide groove 25 communicating with the slot 211 is defined at the center of the fixing sleeve 21. The pressing block 261 slides along the guide groove 25. The second sealing ring 262 is disposed at the end of the pressing block 261 adjacent to the slot 211. The spring 263 is embedded in the guide groove 25 and pushes the pressing block 261 to press against the end of the input shaft 81.

[0042] In this embodiment, because the lubrication channel is arranged on the axis of the input shaft 81, and the opening of the lubrication channel is arranged at the end of the input shaft 81, when the lubrication oil channel is supplied with oil, the lubricating oil enters from the opening. Therefore, in this embodiment, a clamping assembly is provided to clamp the fixed shaft and at the same time achieve sealing with the end of the input shaft 81, thereby sealing the leakage of lubricating oil in the lubrication channel and further improving the sealing effect.

[0043] See attached Figure 2 As shown, the pressing block 261 is coaxial with the input shaft 81 inserted into the slot 211. At this time, the pressure exerted by the pressing block 261 on the second sealing ring 262 is relatively uniform, and the second sealing ring 262 is also relatively uniform when deformed, and the sealing effect is good.

[0044] See attached Figure 2 As shown, an oil inlet circuit 4 is commonly provided on the first rotating shaft 1, the fixed sleeve 21 and the pressing block 261. The oil inlet circuit 4 is connected to the lubricating oil circuit 85 on the clutch 8. The oil inlet circuit 4 is used to introduce lubricating oil into the lubricating oil channel of the clutch 8 to provide lubricating oil for the detection of the clutch 8.

[0045] Because the first rotating shaft 1, fixed sleeve 21, and pressure block 261 all rotate synchronously, the second oil supply component that provides lubricating oil is usually located externally and fixed, and therefore cannot be directly connected to the oil inlet 4 via a pipeline. A second annular oil sleeve 41 is externally connected to the first rotating shaft 1. The second annular oil sleeve 41 is rotatably connected to the first rotating shaft 1, and the second annular oil sleeve 41 does not rotate. A sealed second annular oil groove 411 is formed between the second annular oil sleeve 41 and the first rotating shaft 1. The second annular oil groove 411 is connected to the oil inlet 4. At this time, the second annular oil groove 411 is connected to the second oil supply component through a pipeline, achieving rotational oil supply.

[0046] An oil outlet passage 5 is also provided on the first rotating shaft 1 and the fixed sleeve 21 . The oil outlet passage 5 is connected to the lubricating oil passage 85 on the clutch 8 . The oil outlet passage 5 is used to guide the lubricating oil in the lubricating oil passage 85 .

[0047] The oil outlet passage 5 can re-introduce the lubricating oil in the lubricating oil passage 85 into the second oil supply member. At this time, the oil inlet passage 4, the lubricating oil passage 85 and the oil outlet passage 5 are connected in sequence to form a circulating oil circuit, so that the lubricating oil can be recycled. The flow direction of the lubricating oil is shown in the attached diagram. Figure 2 Indicated by the hollow arrows in .

[0048] Similarly, the first rotating shaft 1 and the fixed sleeve 21 are rotating and cannot be directly connected to the second oil supply part through a pipeline. Therefore, the outer cover of the first rotating shaft 1 is connected to the third annular oil sleeve 51, and the third annular oil sleeve 51 is rotatably connected to the first rotating shaft 1. A sealed third annular oil groove 511 is formed between the third annular oil sleeve 51 and the first rotating shaft 1, and the third annular oil groove 511 is connected to the oil outlet path 5, thereby realizing a rotational oil return.

[0049] The oil outlet passages are evenly distributed in the circumferential direction. In this embodiment, two oil outlet passages are provided.

[0050] A fixing plate 6 is also fixed to the outside of the fixing sleeve 21. The fixing plate 6 is detachably connected to the connecting plate 83 fixed to the input shaft. The detachable connection is a bolt connection. When the fixing plate 6 and the connecting plate 83 are fixed, the first test mechanism and the clutch 8 are initially fixed.

[0051] During operation, the fixing plate 6 and the connecting plate 83 are first fixed with bolts. This secures the first test mechanism and the clutch 8. The pressing block 261 presses against the end of the input shaft 81. Hydraulic oil is then introduced into the extrusion cavity 24 through the sealing oil passage. The hydraulic oil pressure pushes the extrusion block 23 toward the first sealing ring 22, squeezing it and improving the sealing performance. Finally, lubricating oil is supplied to the oil inlet passage to simulate actual use, and the test begins.

[0052] The first rotating shaft 1 passes through a fixed seat 7 and is rotatably connected thereto. The first annular oil sleeve 31, the second annular oil sleeve 41, and the third annular oil sleeve 51 are all fixed to the fixed seat 7. The end of the first rotating shaft 1 away from the sealing plug component 2 is connected to the first driving member via a torque sensor and a coupling. The torque sensor can detect torque during rotation.

[0053] The testing device also includes a second testing mechanism (not shown). This second testing mechanism includes a second rotating shaft, which is fixed to flywheel 82 and drives flywheel 82 to rotate. The second rotating shaft rotates at a differential speed with the second rotating shaft. In this case, the second testing mechanism does not require sealing or oil supply; it only needs to drive flywheel 82 to rotate.

[0054] The above implementation methods are only for illustrating the technical concept and features of the utility model. Its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the scope of protection of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the scope of protection of the utility model.

Claims

1. Clutch testing device, characterized by: The method comprises a first testing mechanism, wherein the first testing mechanism comprises: a first rotating shaft connected to the input shaft of the clutch, and capable of rotating around its own axis when driven by a first driving member; a sealing plug component, the sealing plug component including a fixed sleeve, the fixed sleeve being fixed to the end of the first rotating shaft, the fixed sleeve being provided with a slot for inserting the end of the input shaft of the clutch, a first sealing ring and an extrusion block being arranged in the slot, one end of the extrusion block and the fixed sleeve forming a sealed extrusion cavity, the first sealing ring being located at the other end of the extrusion block and being sleeved on the input shaft of the clutch, the extrusion block being able to move axially along the slot to extrude the first sealing ring; A sealed oil circuit is provided on the fixed sleeve and the first rotating shaft. The sealed oil circuit is communicated with the extrusion cavity. The sealed oil circuit is used to introduce hydraulic oil to push the extrusion block to move.

2. The clutch testing device according to claim 1, characterized in that: The outer casing of the first rotating shaft is connected to a first annular oil sleeve, the first annular oil sleeve is rotatably connected to the first rotating shaft, a sealed first annular oil groove is formed between the first annular oil sleeve and the first rotating shaft, and the first annular oil groove is connected to the sealed oil circuit.

3. The clutch testing device according to claim 1, characterized in that: The sealing plug component also includes a clamping assembly, which includes a clamping block, a second sealing ring and a spring. A guide groove connected to the slot is opened at the center of the fixed sleeve, and the clamping block slides along the guide groove. The second sealing ring is arranged at the end of the clamping block close to the slot. The spring is embedded in the guide groove and pushes the clamping block to be pressed against the end of the input shaft.

4. The clutch testing device according to claim 3, characterized in that: The pressing block is coaxial with the input shaft inserted into the slot.

5. The clutch testing device according to claim 3, characterized in that: An oil inlet passage is commonly provided on the first rotating shaft, the fixed sleeve and the pressing block. The oil inlet passage is connected to the lubricating oil passage on the clutch and is used to introduce lubricating oil into the lubricating oil passage of the clutch.

6. The clutch testing device according to claim 5, characterized in that: The outer sleeve of the first rotating shaft is connected to a second annular oil sleeve, the second annular oil sleeve is rotatably connected to the first rotating shaft, a sealed second annular oil groove is formed between the second annular oil sleeve and the first rotating shaft, and the second annular oil groove is connected to the oil inlet passage.

7. The clutch testing device according to any one of claims 1 to 5, characterized in that: The first rotating shaft and the fixed sleeve are also provided with an oil outlet passage, which is connected to the lubricating oil passage on the clutch and is used to guide the lubricating oil in the lubricating oil passage.

8. The clutch testing device according to claim 7, characterized in that: The outer casing of the first rotating shaft is connected to a third annular oil sleeve, the third annular oil sleeve is rotatably connected to the first rotating shaft, a sealed third annular oil groove is formed between the third annular oil sleeve and the first rotating shaft, and the third annular oil groove is connected to the oil outlet passage.

9. The clutch testing device according to claim 1, characterized in that: A fixing disk is also fixed on the outer side of the fixing sleeve, and the fixing disk is detachably connected to the connecting disk fixed on the input shaft.

10. The clutch testing device according to claim 1, characterized in that: The first rotating shaft passes through a fixing seat and is rotatably connected to the fixing seat. One end of the first rotating shaft away from the sealing plug component is connected to the first driving member through a torque sensor and a coupling.

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