A device, system and method for detecting warping of a clutch friction element

Abstract

The present application belongs to the technical field of automobile parts detection, and discloses a clutch friction element warping deformation detection device, system and method, which comprises a box body serving as a frame and mounting base of the test device; a detection assembly is arranged on the box body and used for mounting a clutch to be detected; a laser emission unit is arranged on the side wall of the box body and emits detection laser to the clutch; a laser receiving unit is arranged on the box body and correspondingly arranged with the laser emission unit to receive the detection laser; and a fiber amplifier unit is arranged on the box body and correspondingly arranged with the laser receiving unit to detect the intensity of the detection laser received by the laser receiving unit. The present application adopts modular design, has simple and compact structure, is convenient to use, flexible to adjust, applicable to different detection requirements, can accurately detect the warping deformation amount of the clutch friction element, effectively determine the warping degree, has high detection efficiency, is convenient to operate and has high repeatability.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automobile parts detection, and particularly relates to a clutch friction element warping deformation detection device, system and method. BACKGROUND

[0002] The clutch is an important component in the transmission system, which connects the engine and the output shaft in the transmission system, and is widely used in the fields of vehicles, ships, engineering machinery and the like. The core components of the wet clutch are the friction plate and the counter steel sheet. Each friction pair is formed by pairing a friction plate and a counter steel sheet. These friction plates and counter steel sheets are alternately arranged to form a plurality of friction pairs.

[0003] However, when the vehicle operates in a high-speed and high-load working condition, the clutch often works in a high-face-pressure and high-speed-difference environment due to the high-speed centrifugal force. A large amount of friction heat is generated during the engagement process, which causes the temperature of the friction element to rise. Due to the difference in linear speed between the inner and outer diameters of the friction element and the different heat dissipation conditions, there is a large radial temperature difference, which causes a large thermal stress and causes the friction element to warp and deform in a conical shape. Since slight warping of the friction element does not affect the normal use of the clutch, slight warping of the friction element is not easy to find. As the degree of warping of the friction element increases, the warping deformation height will gradually occupy the friction pair gap of the clutch, causing the friction pair to slide for a long time in the disengaged state, generating a large amount of friction heat, further aggravating the warping deformation of the friction element, and even causing the friction element to ablate and break.

[0004] Therefore, in order to avoid the damage to the clutch caused by the warping deformation of the friction element, the present application designs a clutch friction element warping deformation detection device, system and method to solve the above technical problems. SUMMARY

[0005] To solve the above technical problems, the present application provides a clutch friction element warping deformation detection device, system and method, which identifies the warping deformation state of the friction element, thereby prolonging the service life of the clutch.

[0006] To achieve the above purpose, the present application provides a clutch friction element warping deformation detection device, which comprises:

[0007] A box body serving as a frame and mounting base of the test device;

[0008] A detection assembly provided on the box body, the detection assembly being used for mounting the clutch to be detected;

[0009] A laser emission unit provided on the side wall of the box body, the detection laser emitted by the laser emission unit being directed to the clutch.

[0010] a laser receiving unit arranged on the box body and corresponding to the laser emitting unit, for receiving the detection laser;

[0011] a fiber amplifier unit arranged on the box body and corresponding to the laser receiving unit, for detecting the intensity of the detection laser received by the laser receiving unit.

[0012] Preferably, the detection assembly comprises an input shaft rotatably connected to the box body, the input shaft extending out of the box body and in transmission connection with a motor shaft; the input shaft is in transmission connection with an output shaft through the clutch, and the output shaft is rotatably connected to the box body.

[0013] Preferably, the fiber amplifier unit comprises a fiber amplifier clamp fixedly installed on the box body, the fiber amplifier clamp being provided with a fiber amplifier corresponding to the laser receiving unit, and the fiber amplifier clamp being provided with a first locking module for fixing the fiber amplifier.

[0014] Preferably, the laser emitting unit comprises a first universal ball bolt fixedly locked on the box body, the first universal ball bolt being provided with a connecting rod, the bottom end of the connecting rod being provided with a laser emitting clamp through a second universal ball bolt, the laser emitting clamp being provided with a laser emitter, and the laser emitter being used for emitting the detection laser.

[0015] Preferably, the connecting rod comprises a first connecting piece and a second connecting piece arranged correspondingly, the first universal ball bolt being rotatably connected between the top ends of the first connecting piece and the second connecting piece, and the second universal ball bolt being rotatably connected between the bottom ends of the first connecting piece and the second connecting piece.

[0016] Preferably, the first connecting piece and the second connecting piece are in threaded connection with a first double-wing handle screw and a second double-wing handle screw, the first double-wing handle screw being arranged on the upper part of the first connecting piece and being used for locking the first universal ball bolt, and the second double-wing handle screw being arranged on the lower part of the second connecting piece and being used for locking the second universal ball bolt.

[0017] Preferably, the laser receiving unit comprises an aluminum profile arranged on the box body, the aluminum profile being provided with a laser receiver clamp, the laser receiver clamp being provided with a laser receiver, and the detection laser being received by the laser receiver after passing through the clutch.

[0018] Preferably, the laser receiver clamp comprises a laser receiver lower clamp arranged on the aluminum profile, a C-shaped guide rail is arranged on the laser receiver lower clamp, a laser receiver upper clamp is arranged on the C-shaped guide rail in a sliding manner, and the laser receiver is clamped between the laser receiver upper clamp and the laser receiver lower clamp.

[0019] The application further discloses a detection system based on the clutch friction element warping deformation detection device, and a power supply system and a display instrument.

[0020] The application further discloses a detection method based on the clutch friction element warping deformation detection system.

[0021] The application further discloses a detection system based on the clutch friction element warping deformation detection device, and a power supply system and a display instrument.

[0022] The application further discloses a detection system based on the clutch friction element warping deformation detection device, and a power supply system and a display instrument.

[0023] When the optical fiber amplifier unit has a stable light receiving amount greater than the threshold value, the detection assembly is started to drive the clutch to be detected on the detection assembly to work.

[0024] Under the long-time high-speed rotation of the detection assembly, the friction element of the clutch is subjected to conical warping deformation.

[0025] The warping deformation of the friction element of the clutch causes the reflection of laser at the warping part, the optical signal detected by the optical fiber amplifier unit is reduced, the display instrument gradually reduces the maximum value, and when the display instrument is reduced to below the threshold value, the display instrument alarms to judge the bending deformation of the friction element, and the detection is completed.

[0026] Compared with the prior art, the present application has the following advantages and technical effects: the present application discloses a clutch friction element warping deformation detection device, system and method, the detection assembly is arranged on the box, the detection laser is emitted by the laser emission unit, the detection laser is received by the laser receiving unit after passing through the clutch, and the signal is amplified and displayed by the optical fiber amplifier unit, when the detection laser passes through the clutch, if the friction element of the clutch produces warping deformation, the light path of the detection laser is affected, the brightness of the detection laser received by the laser receiving unit is reduced, the optical signal transmitted to the optical fiber amplifier unit is reduced, and the warping deformation amount of the friction element of the clutch can be displayed by the reduced number; the device adopts modular design, each functional module can be independently disassembled and replaced, which helps to quickly locate the fault source and efficiently repair, and ensures the stability and efficiency of the system in long-term operation; the detection device is concentrated on the box, the structure is compact, and the clutch is clamped flexibly on the monitoring subassembly to adapt to diversified detection requirements.

[0027] The present application adopts modular design, has simple and compact structure, is convenient to use, is flexible to adjust, is suitable for different detection requirements, can accurately detect the warping deformation amount of the clutch friction element, effectively determines the warping degree, has high detection efficiency, is convenient to operate, and has high repeatability. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the present application illustrated in the drawings and their descriptions are used to explain the present application and do not limit the present application. In the drawings:

[0029] Figure 1 It is a shaft view of the clutch friction element warping deformation detection device of the present application;

[0030] Figure 2 It is a front view of the clutch friction element warping deformation detection device of the present application;

[0031] Figure 3 It is a structure schematic view of the optical brightening amplifier unit of the present application;

[0032] Figure 4 It is a structure schematic view of the laser emission unit of the present application;

[0033] Figure 5 It is a structure schematic view of the laser receiving unit of the present application;

[0034] Figure 6 It is a principle schematic view of the clutch friction element warping deformation detection of the present application;

[0035] Figure 7 It is a schematic view of the clutch friction element warping deformation detection system of the present application;

[0036] Figure 8The flow chart of the clutch friction element warping deformation test method of the present application;

[0037] In the figure: 1, the optical fiber amplifier unit; 2, the motor shaft; 3, the shaft coupling; 4, the pressing plate; 5, the laser emitting unit; 6, the box body; 7, the output shaft; 8, the output cover; 10, the detection laser; 11, the laser receiving unit; 12, the friction plate; 13, the input shaft; 14, the input cover; 15, the steel sheet; 1-1, the first gasket; 1-2, the optical fiber amplifier; 1-3, the first bolt; 1-4, the optical fiber amplifier clamp; 1-5, the second bolt; 1-6, the first nut; 5-1, the first universal ball bolt; 5-2, the second nut; 5-3, the first double-wing handle screw; 5-4, the first connecting plate; 5-5, the inner gear; 5-6, the laser emitter; 5-7, the third bolt; 5-8, the fourth bolt; 5-9, the laser emitting clamp; 5-10, the second gasket; 5-11, the second universal ball bolt; 5-12, the second double-wing handle screw; 5-13, the second connecting plate; 5-14, the third gasket; 11-1, the fifth bolt; 11-2, the aluminum profile; 11-3, the laser receiver; 11-4, the lower laser receiver clamp; 11-5, the upper laser receiver clamp; 11-6, the C-shaped guide rail. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the protection scope of the present application.

[0039] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0040] Reference Figures 1-8 As shown in the figure, the present embodiment provides a clutch friction element warping deformation detection device, comprising:

[0041] The box body 6 serves as the frame and mounting base of the test device;

[0042] The detection assembly is arranged on the box body 6, and is used for mounting the clutch to be detected;

[0043] The laser emitting unit 5 is arranged on the side wall of the box body 6, and the detection laser 10 emitted by the laser emitting unit 5 is directed to the clutch;

[0044] The laser receiving unit 11 is arranged on the box body 6 and corresponds to the laser emitting unit 5, and receives the detection laser 10;

[0045] The fiber amplifier unit 1 is arranged on the box body 6 and corresponds to the laser receiving unit 11, and is used for detecting the intensity of the detection laser 10 received by the laser receiving unit 11.

[0046] The application discloses a clutch friction element warping deformation detection device, system and method, which sets a detection assembly on a box body 6, emits detection laser 10 through a laser emitting unit 5, receives the detection laser 10 after passing through the clutch through a laser receiving unit 11, and amplifies and displays the signal through a fiber amplifier unit 1. When the detection laser 10 passes through the clutch, if the friction element of the clutch produces warping deformation, the light path of the detection laser 10 will be affected, the brightness of the detection laser 10 received by the laser receiving unit 11 will decrease, the optical signal transmitted to the fiber amplifier unit 1 will decrease, and the warping deformation amount of the friction element of the clutch can be displayed through the decreased number. The device adopts modular design, and each functional module can be independently disassembled and replaced, which is helpful for quickly positioning a fault source and performing efficient repair, ensures the stability and efficiency of the system in long-term operation, and the detection device is concentrated on the box body 6, has compact structure, and is flexible in clamping of the clutch on the monitoring subassembly, so that diversified detection requirements can be adapted. The application adopts modular design, has simple and compact structure, is convenient to use, is flexible to adjust, is suitable for different detection requirements, can accurately detect the warping deformation amount of the friction element of the clutch, effectively determines the warping degree, has high detection efficiency, is convenient to operate, and has high repeatability.

[0047] Further optimization scheme, the detection assembly includes an input shaft 13 rotatably connected to the box body 6, the input shaft 13 extends out of the box body 6 and is in transmission connection with the motor shaft 2; the input shaft 13 is in transmission connection with an output shaft 7 through a clutch, and the output shaft 7 is rotatably connected to the box body 6. The input shaft 13 of the detection assembly is connected with the motor shaft 2 through a shaft coupling 3, and then drives the detection assembly to rotate at high speed through a liquid drive motor; the shaft coupling 3 is arranged between the input shaft 13 and the output shaft 7, and then drives the output shaft 7 to rotate through the input shaft 13, when rotating at high speed, the friction element of the clutch will produce warping deformation.

[0048] In an embodiment of the application, the input shaft 13 is mounted to the side wall of the box body 6 through a pressing plate 4 and an input cover 14, so as to fix the input shaft 13.

[0049] In an embodiment of the application, the output shaft 7 is fixed to the side wall of the box body 6 through an output cover 8.

[0050] In one embodiment of the application, the friction element of the clutch comprises a corresponding arrangement of steel sheets 15 and friction plates 12, and transmission is achieved by frictional contact between the steel sheets 15 and the friction plates 12.

[0051] Further optimization scheme, the optical fiber amplifier unit 1 includes the optical fiber amplifier clamp 1-4 fixedly installed on the box body 6, the optical fiber amplifier clamp 1-4 is provided with the optical fiber amplifier 1-2 corresponding to the laser receiving unit 11, and the optical fiber amplifier clamp 1-4 is provided with a first locking module for fixing the optical fiber amplifier 1-2. The optical fiber amplifier clamp 1-4 is fixedly installed on the box body 6, the optical fiber amplifier clamp 1-4 is arranged in a character-shaped structure, a second bolt 1-5 is threadedly connected to the top end of the optical fiber amplifier clamp 1-4, the bottom end of the second bolt 1-5 extends into the inner cavity of the optical fiber amplifier 1-2 and is pressed against the top end of the optical fiber amplifier 1-2 through a pressing block, so that the optical fiber amplifier 1-2 is fixed on the box body 6, and the optical fiber amplifier 1-2 is physically connected with the laser receiving unit 11 through an optical fiber, and is used for detecting the light quantity of the laser received by the laser receiving unit 11.

[0052] In one embodiment of the application, the optical fiber amplifier clamp 1-4 is provided with a first bolt 1-3 at the lower end, and the optical fiber amplifier clamp 1-4 is fixed on the surface of the box body 6 at a position of 94.48 mm close to the direction of the pressure plate 4.

[0053] In one embodiment of the application, the second bolt 1-5 is threadedly connected with a first nut 1-6, the first nut 1-6 is abutted on the optical fiber amplifier clamp 1-4 through a first gasket 1-1, the second bolt 1-5 is locked, the spacing between the second bolt 1-5 and the optical fiber amplifier 1-2 is adjusted, and when the spacing is smaller than the diameter of the optical fiber amplifier 1-2, the optical fiber amplifier 1-2 is fixed.

[0054] Further optimization scheme, the laser emitting unit 5 includes a first universal ball bolt 5-1 fixedly locked on the box body 6, a connecting rod is arranged on the first universal ball bolt 5-1, a laser emitting clamp 5-9 is installed at the bottom end of the connecting rod through a second universal ball bolt 5-11, and a laser emitter 5-6 is installed on the laser emitting clamp 5-9, and the laser emitter 5-6 is used for emitting detection laser 10. The laser emitter 5-6 unit includes a connecting rod, the connecting rod is connected and fixed on the surface of the box body 6 at a position of 251.90 mm close to the direction of the pressure plate 4 through the first universal ball bolt 5-1, the connecting rod is vertically directed to the ground, the bottom end of the connecting rod is connected with the laser emitting clamp 5-9 through the second universal ball bolt 5-11, the laser emitter 5-6 is installed on the laser emitting clamp 5-9, the laser emitter 5-6 emits detection laser 10, and the detection laser 10 is received by the laser receiving unit 11 after passing through the clutch.

[0055] In an embodiment of the present application, the third bolt 5-7 and the fourth bolt 5-8 are screwed on the laser emission clamp 5-9, the top ends of the third bolt 5-7 and the fourth bolt 5-8 extend into the laser emission clamp 5-9, the laser emitter 5-6 is fixed on the laser emission clamp 5-9, and the laser emitter 5-6 is parallel to the ground and radially points to the clutch.

[0056] In an embodiment of the present application, the first universal ball bolt 5-1 is provided with the second nut 5-2 and the third gasket 5-14, and the fixing with the box body 6 is completed.

[0057] In an embodiment of the present application, the second universal ball bolt 5-11 is provided with the internal gear 5-5 and the second gasket 5-10, the fixing of the laser emission clamp 5-9 with the second universal ball bolt 5-11 can be conveniently controlled, and the laser emission clamp 5-9 can be rotated to facilitate the positioning of the laser 10.

[0058] Further optimization scheme, the connecting rod includes the first connecting piece 5-4 and the second connecting piece 5-13 which are correspondingly arranged, the first universal ball bolt 5-1 is rotatably connected between the top ends of the first connecting piece 5-4 and the second connecting piece 5-13, and the second universal ball bolt 5-11 is rotatably connected between the bottom ends of the first connecting piece 5-4 and the second connecting piece 5-13. The first connecting piece 5-4 and the second connecting piece 5-13 are correspondingly arranged to form a connected cavity structure; the ball head of the first universal ball bolt 5-1 is rotatably connected between the top ends of the first connecting piece 5-4 and the second connecting piece 5-13, so that the deflection and locking of the first universal ball bolt 5-1 can be realized; and the ball head of the second universal ball bolt 5-11 is rotatably connected between the bottom ends of the first connecting piece 5-4 and the second connecting piece 5-13, so that the deflection and locking of the second universal ball bolt 5-11 can be realized, the emission angle of the laser emitter 5-6 is conveniently controlled, and different specifications of clutches can be connected flexibly and conveniently.

[0059] Further optimization scheme, the first connecting piece 5-4 and the second connecting piece 5-13 are threadedly connected with the first double-wing handle screw 5-3 and the second double-wing handle screw 5-12, the first double-wing handle screw 5-3 is arranged on the upper portion of the first connecting piece 5-4 and is used for locking the first universal ball bolt 5-1, and the second double-wing handle screw 5-12 is arranged on the lower portion of the second connecting piece 5-13 and is used for locking the second universal ball bolt 5-11. The upper and lower ends of the first connecting piece 5-4 and the second connecting piece 5-13 are respectively threadedly connected with the first double-wing handle screw 5-3 and the second double-wing handle screw 5-12, when rotating, the spacing of the first connecting piece 5-4 and the second connecting piece 5-13 can be adjusted, when the first double-wing handle screw 5-3 rotates, the spacing between the upper portions of the first connecting piece 5-4 and the second connecting piece 5-13 can be controlled, the rotation and locking of the first universal ball bolt 5-1 are realized, and adjustment is facilitated, and when the second double-wing handle screw 5-12 rotates, the spacing between the lower portions of the first connecting piece 5-4 and the second connecting piece 5-13 can be controlled, the rotation and locking of the second universal ball bolt 5-11 are realized, and adjustment is facilitated.

[0060] Further optimization scheme, the laser receiving unit 11 includes an aluminum profile 11-2 arranged on the box body 6, the aluminum profile 11-2 is provided with a laser receiver clamp, and a laser receiver 11-3 is arranged on the laser receiver clamp. The detection laser 10 is received by the laser receiver 11-3 after passing through the clutch. The aluminum profile 11-2 is fixed on the right side of the box body 6 at a position 221.72 mm away from the top of the box body 6 through four bolts. In order to ensure that the laser receiver 11-3 and the laser emitter 5-6 are in a concentric position, the laser receiver 11-3 is fixed on the aluminum profile 11-2 at a position 251.90 mm away from the pressing plate 4 through the laser receiver 11-3 clamp, so that the detection laser 10 is received by the laser receiver 11-3 after passing through the clutch, and the light quantity of the received detection laser 10 is measured through the optical fiber amplifier 1-2.

[0061] Further optimization scheme, laser receiver clamp includes laser receiver lower clamp 11-4 arranged on aluminum profile 11-2, C-shaped guide rail 11-6 is arranged on laser receiver lower clamp 11-4, laser receiver upper clamp 11-5 is slidably arranged on C-shaped guide rail 11-6, and laser receiver 11-3 is clamped between laser receiver upper clamp 11-5 and laser receiver lower clamp 11-4.The laser receiver 11-3 clamp includes a laser receiver lower clamp 11-4 fixed on the aluminum profile 11-2, a C-shaped guide rail connected to the laser receiver lower clamp 11-4 by bolts, a laser receiver upper clamp 11-5 slidably connected in the C-shaped guide rail, the laser receiver upper clamp 11-5 is lifted and slid in the C-shaped guide rail by the fifth bolt 11-1, the distance between the laser receiver upper clamp 11-5 and the laser receiver lower clamp 11-4 is controlled, and the fifth bolt 11-1 is rotated to adjust the distance between the laser receiver upper clamp 11-5 and the laser receiver 11-3.When the distance is less than the diameter of the laser receiver 11-3, the laser receiver 11-3 is fixed.

[0062] The application further discloses a detection system of the clutch friction element warping deformation detection device, which comprises a power supply system and a display instrument.

[0063] In an embodiment of the application, the power supply system is composed of a 12V mobile power supply and a 5V power supply, which directly supply power to the optical fiber amplifier unit 1 and the laser emitter 5-6 unit.

[0064] In an embodiment of the application, after the power supply system supplies power to the laser emission unit 5, the laser emitter 5-6 emits a 5mW red laser source as a detection laser 10, and the bright 650nm wavelength red laser beam and photoelectricity make the visual distance far exceed the detection requirement.

[0065] In an embodiment of the application, the laser emission unit 5 uses an ambient temperature of between -10-+55 DEG C, and the protection level is IP54.

[0066] In one embodiment of the present application, when the laser emitters 5-6 emit red light, if the clutch friction element is not warped at this time, the laser receiver 11-3 concentrically installed with the laser emitters 5-6 receives most of the red light, and transmits the received optical signal to the optical fiber amplifier unit 1 through the optical fiber.

[0067] In one embodiment of the present application, in order to meet the detection purpose, the laser receiver 11-3 selects an optical fiber element with a built-in lens type top direction, the surface medium of which uses a fluorocarbon polymer coating to prevent liquid from entering, which makes it have the characteristics of oil and chemical resistance; at the same time, the detection surface of the laser receiver 11-3 is designed as a curved surface, which facilitates the flow of liquid to prevent affecting the detection and maintain the reliability and accuracy of the sensor.

[0068] In one embodiment of the present application, the laser receiving unit 11 uses an environmental temperature of -10-+55°C and a protection level of IP54.

[0069] In one embodiment of the present application, after the power supply system supplies power to the optical fiber emitting unit, the optical signal received by the laser receiver 11-3 is physically transmitted to the optical fiber amplifier 1-2 through the optical fiber, and the optical fiber amplifier 1-2 presents the received light amount in a digital form with a super-high speed response of 16us.

[0070] In one embodiment of the present application, the laser emitting unit 5 uses an environmental temperature of -10-+55°C, an environmental humidity of 35-85% RH, and a protection level of IP54.

[0071] In one embodiment of the present application, the display instrument is built-in in the optical fiber amplifier 1-2, when the received light amount is greater than the threshold value, it is judged that the friction element is not warped, the optical fiber amplifier 1-2 outputs a low level, and the instrument does not display; when the received light amount is less than the threshold value, it is judged that the friction element is warped, the optical fiber amplifier 1-2 outputs a high level, and the instrument displays a red light.

[0072] Referring to the accompanying Figure 6 The clutch friction element warping detection system of the present application has the following detection principle:

[0073] When the friction element is not warped and the clutch is in a separated state, the detection laser 10 emitted by the laser emitter 5-6 is not blocked, most of the detection laser 10 is received by the laser receiver 11-3, the optical signal is physically transmitted to the optical fiber amplifier 1-2 through the optical fiber unit, and at this time the optical fiber amplifier 1-2 shows a maximum value of 9999.

[0074] When the friction element is warped, the separation gap of the clutch is reduced, the detection laser 10 emitted by the laser emitter 5-6 is reflected at the warped position, part of the laser no longer enters the laser receiving unit 11 according to the original route; the light receiving amount of the laser receiver 11-3 is reduced, the optical signal transmitted to the fiber amplifier 1-2 is reduced, and the fiber amplifier 1-2 display is reduced, until the detection laser 10 emitted by the laser emitter 5-6 is completely blocked at the warped position, at which time the laser emitter 5-6 display is zero.

[0075] The threshold is set as the average of the maximum value 9999 and the minimum value 0 of the fiber amplifier 1-2 display, which is used to detect whether the friction element is warped.

[0076] If the light receiving amount is greater than the threshold, it is judged that the friction element is not warped, the fiber amplifier 1-2 outputs low level, and the instrument displays;

[0077] If the light receiving amount is greater than the threshold, the friction element is warped, the fiber amplifier 1-2 outputs high level, and the instrument displays.

[0078] The application also discloses a detection method based on the clutch friction element warping detection system, comprising the following steps:

[0079] The motor shaft 2, the shaft coupling 3, the pressing plate 4, the box body 6, the input shaft 13, the output shaft 7, the input cover 14 and the output cover 8 are assembled on the box body 6 to form a rack, and the clutch composed of the friction plate 12 and the steel sheet 15 is installed;

[0080] The fiber amplifier unit 1, the laser emitting unit 5 and the laser receiving unit 11 are sequentially installed on the rack to complete the construction of the clutch friction element warping detection device, as shown in Figure 1 ;

[0081] The fiber unit of the laser receiver 11-3 is physically connected to the fiber amplifier 1-2;

[0082] The 12V mobile power supply of the power supply system supplies power to the fiber amplifier 1-2, and the 5V mobile power supply supplies power to the laser emitter 5-6;

[0083] The threshold of the fiber amplifier 1-2 is set, the first double-wing handle screw 5-3, the second double-wing handle screw 5-12 and the inner gear 5-5 are rotated, the orientation of the detection laser 10 emitted by the laser emitter is adjusted, and the display of the fiber amplifier 1-2 reaches the maximum value;

[0084] When the fiber amplifier 1-2 has stable and greater light receiving amount than the threshold, the hydraulic motor is started, and the motor shaft 2 transmits power to the clutch through the shaft coupling 3;

[0085] Under the long time high speed rotation of the liquid drive motor, the clutch is in the environment of high face pressure and high speed difference, and a large amount of friction heat generated in the engagement process causes the temperature of the friction element to rise. Due to the difference between the linear speed of the inner and outer diameters of the friction element and the different heat dissipation conditions, there is a large radial temperature difference, which causes a large thermal stress, and the friction element is deformed in a conical shape.

[0086] The warping deformation of the friction element causes the detection laser 10 to reflect in the warped part, the light receiving amount of the laser receiver 11-3 is reduced, the optical signal transmitted to the optical fiber amplifier 1-2 is reduced, and the instrument display of the optical fiber amplifier 1-2 gradually decreases from the maximum value. When the instrument display decreases below the threshold value, the instrument display of the optical fiber amplifier 1-2 lights up, the bending deformation of the friction element is judged, and the detection is completed.

[0087] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0088] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope of the present application.

Claims

1. A device for detecting warping deformation of a clutch friction element, characterized by Include: The box (6) is used as the frame and mounting base of the test device; The detection assembly is arranged on the box (6), which is used for mounting the clutch to be detected; The laser emission unit (5) is arranged on the side wall of the box (6), and the detection laser (10) emitted by the laser emission unit (5) is shot to the clutch; the laser emission unit (5) includes a first universal ball bolt (5-1) fixed on the box (6), a connecting rod is arranged on the first universal ball bolt (5-1), a laser emission clamp (5-9) is arranged at the bottom end of the connecting rod through a second universal ball bolt (5-11), a laser emitter (5-6) is arranged on the laser emission clamp (5-9), and the laser emitter (5-6) is used for emitting the detection laser (10); the connecting rod includes a first connecting piece (5-4) and a second connecting piece (5-13) arranged correspondingly, the first universal ball bolt (5-1) is rotatably connected between the top ends of the first connecting piece (5-4) and the second connecting piece (5-13), and the second universal ball bolt (5-11) is rotatably connected between the bottom ends of the first connecting piece (5-4) and the second connecting piece (5-13); The laser receiving unit (11) is arranged on the box (6) and correspondingly arranged with the laser emission unit (5), and receives the detection laser (10); the laser receiving unit (11) includes an aluminum profile (11-2) arranged on the box (6), a laser receiver clamp is arranged on the aluminum profile (11-2), a laser receiver (11-3) is arranged on the laser receiver clamp, and the detection laser (10) is received by the laser receiver (11-3) after passing through the clutch; the laser receiver clamp includes a laser receiver lower clamp (11-4) arranged on the aluminum profile (11-2), a C-shaped guide rail (11-6) is arranged on the laser receiver lower clamp (11-4), a laser receiver upper clamp (11-5) is slidably arranged on the C-shaped guide rail (11-6), and the laser receiver (11-3) is clamped between the laser receiver upper clamp (11-5) and the laser receiver lower clamp (11-4); The fiber amplifier unit (1) is arranged on the box (6) and correspondingly arranged with the laser receiving unit (11), and is used for detecting the intensity of the detection laser (10) received by the laser receiving unit (11).

2. The clutch friction element warp deformation detection device according to claim 1, characterized by: The detection assembly includes an input shaft (13) rotatably connected to the box (6), the input shaft (13) extends out of the box (6) and is drivingly connected with a motor shaft (2); the input shaft (13) is drivingly connected with an output shaft (7) through the clutch, and the output shaft (7) is rotatably connected to the box (6).

3. The clutch friction element warp deformation detection device according to claim 1, characterized by: The optical fiber amplifier unit (1) comprises an optical fiber amplifier clamp (1-4) fixedly installed on the box body (6), the optical fiber amplifier clamp (1-4) is provided with an optical fiber amplifier (1-2) corresponding to the laser receiving unit (11), and the optical fiber amplifier clamp (1-4) is provided with a first locking module for fixing the optical fiber amplifier (1-2).

4. The clutch friction element warp deformation detection device according to claim 1, characterized by: The first connecting plate (5-4) and the second connecting plate (5-13) are threadedly connected with a first double-wing handle screw (5-3) and a second double-wing handle screw (5-12), the first double-wing handle screw (5-3) is arranged at the upper portion of the first connecting plate (5-4) and is used for locking the first universal ball screw (5-1), and the second double-wing handle screw (5-12) is arranged at the lower portion of the second connecting plate (5-13) and is used for locking the second universal ball screw (5-11).

5. A clutch friction element warpage deformation detection system, characterized in that: The clutch friction element warping deformation detection device, the power supply system and the display instrument of any one of claims 1-4, the power supply system is used for power supply for the clutch friction element warping deformation detection device, the display instrument is electrically connected with the optical fiber amplifier unit (1), and is used for displaying the detection result.

6. A method of detecting warping deformation of a clutch friction element, characterized by The steps include: Assembling the clutch friction element warping deformation detection system of claim 5; Setting the threshold value of the optical fiber amplifier unit (1), then adjusting the emission position of the detection laser (10) of the laser emission unit (5), and displaying the maximum number of the optical fiber amplifier unit (1) to confirm that the laser emission unit (5) and the laser receiving unit (11) are opposite to each other; When the optical fiber amplifier unit (1) has stable and greater than threshold light receiving amount, the detection assembly is started, and the detection assembly drives the clutch to be detected to work; Under the long-time high-speed rotation of the detection assembly, the conical warping deformation of the friction element of the clutch occurs; The warping deformation of the friction element of the clutch causes the reflection phenomenon of the laser at the warping part, the optical signal detected by the optical fiber amplifier unit (1) is reduced, the display instrument gradually reduces the maximum value, and when the display instrument reduces to below the threshold value, the display instrument alarms, the bending deformation of the friction element is judged, and the detection is completed.

Images