Clutch friction element buckling deformation detection device, system and method

Abstract

The invention belongs to the technical field of automobile part detection, and discloses a clutch friction element buckling deformation detection device, system and method, and the device comprises a box body which serves as a frame of a test device, and a mounting base. The detection assembly is arranged on the box body, and the detection assembly is used for installing a to-be-detected clutch; the laser emitting unit is arranged on the side wall of the box body, and detection laser emitted by the laser emitting unit is emitted to the clutch; the laser receiving unit is arranged on the box body, corresponds to the laser emitting unit and is used for receiving the detection laser; and the optical fiber amplifier unit is arranged on the box body, corresponds to the laser receiving unit and is used for detecting the intensity of the detection laser received by the laser receiving unit. The device adopts a modular design, is simple and compact in structure, convenient to use, flexible to adjust, suitable for different detection requirements, capable of accurately detecting the buckling deformation of the clutch friction element and effectively determining the buckling degree, high in detection efficiency, convenient to operate and high in repeatability.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile parts detection, and in particular relates to a clutch friction element warping deformation detection device, system and method. Background Art

[0002] As an important component of the transmission system, the clutch connects the engine and the output shaft and is widely used in vehicles, ships, engineering machinery and other fields. The core components of the wet clutch are friction plates and dual steel plates. Each pair of friction pairs is composed of a friction plate and a dual steel plate. These friction plates and dual steel plates are arranged alternately to form multiple groups of friction pairs.

[0003] However, when the vehicle is running at high speed and high load, due to the centrifugal force at high speed, the clutch often works under high surface pressure and high speed difference. The large amount of friction heat generated during the engagement process 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 in a conical shape. Since slight warping of the friction element will not affect the normal use of the clutch, slight warping of the friction element is not easy to be found. As the degree of warping of the friction element increases, the warping height will gradually occupy the friction pair clearance of the clutch, causing the friction pair to slip for a long time in the separated state, generating a large amount of friction heat, further aggravating the warping deformation of the friction element, and even causing the ablation and fracture of the friction element.

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

[0005] In order to solve the above technical problems, the present invention proposes a clutch friction element warping deformation detection device, system and method to identify the warping deformation state of the friction element, thereby extending the service life of the clutch.

[0006] To achieve the above object, the present invention provides a clutch friction element warping deformation detection device, comprising:

[0007] A box body, which serves as a frame and mounting base for the test device;

[0008] A detection component, the detection component is arranged on the box body, and the detection component is used to install the clutch to be detected;

[0009] A laser emitting unit, wherein the laser emitting unit is arranged on a side wall of the box body, and the detection laser emitted by the laser emitting unit is directed toward the clutch;

[0010] A laser receiving unit, which is arranged on the box and corresponds to the laser emitting unit, and receives the detection laser;

[0011] An optical fiber amplifier unit is arranged on the box and corresponds to the laser receiving unit, and is used to detect the intensity of the detection laser received by the laser receiving unit.

[0012] Preferably, the detection assembly includes an input shaft rotatably connected to the housing, the input shaft extends out of the housing and is drivingly connected to the motor shaft; the input shaft is connected to an output shaft through the clutch, and the output shaft is rotatably connected to the housing.

[0013] Preferably, the fiber amplifier unit comprises a fiber amplifier fixture fixedly mounted on the housing, the fiber amplifier fixture is provided with a fiber amplifier corresponding to the laser receiving unit, and the fiber amplifier fixture is provided with a first locking module for fixing the fiber amplifier.

[0014] Preferably, the laser emitting unit includes a first universal ball bolt locked and fixed on the box body, a connecting rod is provided on the first universal ball bolt, a laser emitting fixture is installed on the bottom end of the connecting rod through a second universal ball bolt, a laser emitter is installed on the laser emitting fixture, and the laser emitter is used to emit the detection laser.

[0015] Preferably, the connecting rod includes a first connecting plate and a second connecting plate that are correspondingly arranged, the first universal ball bolt is rotatably connected between the top ends of the first connecting plate and the second connecting plate, and the second universal ball bolt is rotatably connected between the bottom ends of the first connecting plate and the second connecting plate.

[0016] Preferably, a first double-wing handle screw and a second double-wing handle screw are threadedly connected between the first connecting plate and the second connecting plate, the first double-wing handle screw is arranged at the upper part of the first connecting plate and is used to lock the first universal ball bolt, and the second double-wing handle screw is arranged at the lower part of the second connecting plate and is used to lock the second universal ball bolt.

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

[0018] Preferably, the laser receiver fixture comprises a laser receiver lower fixture arranged on the aluminum profile, the laser receiver lower fixture is provided with a C-shaped guide rail, an laser receiver upper fixture is slidably provided on the C-shaped guide rail, and the laser receiver is clamped between the laser receiver upper fixture and the laser receiver lower fixture.

[0019] The present invention also discloses a detection system based on the clutch friction element warping deformation inspection device, including the clutch friction element warping deformation detection device, a power supply system and a display instrument, wherein the power supply system is used to power the clutch friction element warping deformation detection device, and the display instrument is electrically connected to the optical fiber amplifier unit for displaying the detection results.

[0020] The present invention also discloses a detection method based on the clutch friction element warping deformation detection system, comprising the following steps:

[0021] Assemble a detection system based on a clutch friction element warpage inspection device;

[0022] Set the threshold of the fiber amplifier unit, then adjust the emission position of the detection laser of the laser emitting unit, and confirm that the laser emitting unit and the laser receiving unit are facing each other when the number displayed on the fiber amplifier unit reaches the maximum;

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

[0024] Under the long-term high-speed rotation of the detection component, the friction element of the clutch undergoes conical warping deformation;

[0025] The warping deformation of the friction element of the clutch causes the laser to reflect at the warped part, the light signal detected by the fiber optic amplifier unit decreases, and the number shown on the display instrument gradually decreases from the maximum value. When the number decreases below the threshold, the display instrument alarms, judging that the friction element is bent and deformed, and the detection ends.

[0026] Compared with the prior art, the present invention has the following advantages and technical effects: the present invention discloses a clutch friction element warping deformation detection device, system and method, wherein the detection component is arranged on a housing, and the detection laser is emitted by a laser emitting unit. After the detection laser passes through the clutch, it is received by a laser receiving unit, and amplified and displayed by an optical fiber amplifier unit. When the detection laser passes through the clutch, if the friction element of the clutch is warped, it will affect the optical path of the detection laser, so that the brightness of the detection laser received by the laser receiving unit is reduced, and the optical signal transmitted to the optical fiber amplifier unit is reduced, and the warping deformation amount of the friction unit of the clutch can be displayed by the reduced number; the device adopts a modular design, and each functional module can be disassembled and replaced independently, which helps to quickly locate the source of the fault and perform efficient repairs, thereby ensuring the stability and efficiency of the system in long-term operation; the detection device is concentrated on the housing as a whole, with a compact structure, and the clutch can be flexibly clamped on the monitoring subassembly to meet diverse detection needs.

[0027] The present invention adopts a modular design, has a simple and compact structure, is easy to use, and is flexible to adjust. It is suitable for different detection needs, can accurately detect the warping deformation of the clutch friction element, and effectively determine the degree of warping. It has high detection efficiency, is easy to operate, and has high repeatability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0029] Figure 1 This is an axial view of the warping deformation inspection device for the clutch friction element of the present invention;

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

[0031] Figure 3 This is a schematic diagram of the structure of the bright amplifier unit of the present invention;

[0032] Figure 4 This is a schematic diagram of the structure of the laser emitting unit of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of the laser receiving unit of the present invention;

[0034] Figure 6 It is a schematic diagram of the principle of warping deformation inspection of the clutch friction element of the present invention;

[0035] Figure 7 It is a schematic diagram of a clutch friction element warping deformation inspection system of the present invention;

[0036] Figure 8This is a flow chart of the warping deformation inspection method of the clutch friction element of the present invention;

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

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] Reference Figure 1-Figure 8 As shown, this embodiment provides a clutch friction element warping deformation detection device, comprising:

[0041] Box 6, box 6 serves as a frame and mounting base of the test device;

[0042] A detection component, which is arranged on the box body 6 and is used to install the clutch to be detected;

[0043] A laser emitting unit 5, which is disposed on a side wall of the housing 6, and a detection laser 10 emitted by the laser emitting unit 5 is directed toward the clutch;

[0044] A laser receiving unit 11, which is disposed on the housing 6 and corresponds to the laser emitting unit 5, and receives the detection laser 10;

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

[0046] The present invention discloses a warping deformation detection device, system and method for a clutch friction element. A detection component is arranged on a housing 6, and a detection laser 10 is emitted by a laser emitting unit 5. After passing through the clutch, the detection laser 10 is received by a laser receiving unit 11, and amplified and displayed by an optical fiber amplifier unit 1. When the detection laser 10 passes through the clutch, if the friction element of the clutch is warped, it will affect the optical path of the detection laser 10, so that the brightness of the detection laser 10 received by the laser receiving unit 11 is reduced, and the optical signal transmitted to the optical fiber amplifier unit 1 is reduced. The warping deformation amount of the friction unit of the clutch can be displayed by the reduced number. The device adopts a modular design, and each functional module can be disassembled and replaced independently, which is helpful to quickly locate the fault source and perform efficient repair, thereby ensuring the stability and efficiency of the system in long-term operation. The detection device is integrated on the housing 6 as a whole, with a compact structure, and the clutch can be flexibly clamped on the monitoring subassembly to meet diverse detection needs. The present invention adopts a modular design, has a simple and compact structure, is easy to use, and is flexible to adjust. It is suitable for different detection needs, can accurately detect the warping deformation of the clutch friction element, and effectively determine the degree of warping. It has high detection efficiency, is easy to operate, and has high repeatability.

[0047] Further optimization scheme, the detection component includes an input shaft 13 rotatably connected to the housing 6, the input shaft 13 extends out of the housing 6 and is transmission-connected to the motor shaft 2; the input shaft 13 is transmission-connected to the output shaft 7 through the clutch, and the output shaft 7 is rotationally connected to the housing 6. The input shaft 13 of the detection component is connected to the motor shaft 2 through the coupling 3, and then the detection component is driven to rotate at a high speed through the hydraulic drive motor; the coupling 3 is arranged between the input shaft 13 and the output shaft 7, and then the output shaft 7 is driven to rotate through the input shaft 13. When rotating at a high speed, the friction element of the clutch will be warped and deformed.

[0048] In one embodiment of the present application, the input shaft 13 is mounted to the side wall of the box body 6 through the pressure plate 4 and the input transparent cover 14 to fix the input shaft 13 .

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

[0050] In an embodiment of the present application, the friction element of the clutch includes a corresponding steel sheet 15 and a friction plate 12, and the transmission is carried out through the frictional contact between the steel sheet 15 and the friction plate 12.

[0051] In a further optimized solution, the optical fiber amplifier unit 1 includes an optical fiber amplifier fixture 1-4 fixedly installed on the box body 6. An optical fiber amplifier 1-2 corresponding to the laser receiving unit 11 is provided on the optical fiber amplifier fixture 1-4, and a first locking module for fixing the optical fiber amplifier 1-2 is provided on the optical fiber amplifier fixture 1-4. The optical fiber amplifier fixture 1-4 is fixedly installed on the box body 6. The optical fiber amplifier fixture 1-4 is arranged in a U-shaped structure. A second bolt 1-5 is threadedly connected to the top end of the optical fiber amplifier fixture 1-4. The bottom end of the second bolt 1-5 extends into the inner cavity of the optical fiber amplifier 1-2 and presses on the top end of the optical fiber amplifier 1-2 through a pressing block, fixing the optical fiber amplifier 1-2 on the box body 6. The optical fiber amplifier 1-2 is physically connected to the laser receiving unit 11 through an optical fiber, and is used to detect the light quantity of the laser received by the laser 10 receiving unit.

[0052] In an embodiment of the present application, a first bolt 1-3 is provided at the lower end of the optical fiber amplifier fixture 1-4 to fix the optical fiber amplifier fixture 1-4 at a position 94.48 mm from the upper surface of the box body 6 close to the pressing plate 4.

[0053] In an embodiment of the present application, a first nut 1-6 is threadedly connected to the second bolt 1-5. The first nut 1-6 abuts against the optical fiber amplifier fixture 1-4 through a first gasket 1-1 to lock the second bolt 1-5, and at the same time adjust the distance between the second bolt 1-5 and the optical fiber amplifier 1-2. When the distance is less than the diameter of the optical fiber amplifier 1-2, the optical fiber amplifier 1-2 is fixed.

[0054] In a further optimized solution, the laser emitting unit 5 includes a first universal ball bolt 5-1 locked and fixed on the box body 6. A connecting rod is provided on the first universal ball bolt 5-1. The bottom end of the connecting rod is installed with a laser emitting fixture 5-9 through a second universal ball bolt 5-11. A laser emitter 5-6 is installed on the laser emitting fixture 5-9, and the laser emitter 5-6 is used to emit the detection laser 10. The laser emitter 5-6 unit includes a connecting rod. The connecting rod is connected and fixed to the upper surface of the box body 6 at a position 251.90 mm from the pressing plate 4 through the first universal ball bolt 5-1. The connecting rod points vertically to the ground. The bottom end of the connecting rod is connected to a laser emitting fixture 5-9 through a second universal ball bolt 5-11. The laser emitter 5-6 is installed on the laser emitting fixture 5-9, and the laser emitter 5-6 emits the detection laser 10, which passes through the clutch and is received by the laser receiving unit 11.

[0055] In one embodiment of the present application, a third bolt 5-7 and a fourth bolt 5-8 are threadedly connected to the laser emitting fixture 5-9, and the top ends of the third bolt 5-7 and the fourth bolt 5-8 extend into the laser emitting fixture 5-9, and the laser emitter 5-6 is fixed to the laser emitting fixture 5-9 so that the laser emitter 5-6 is parallel to the ground and radially points to the clutch.

[0056] In one embodiment of the present application, a second nut 5 - 2 and a third gasket 5 - 14 are provided on the first universal ball bolt 5 - 1 to complete the fixation with the box body 6 .

[0057] In one embodiment of the present application, an internal gear 5-5 and a second gasket 5-10 are provided on the second universal ball bolt 5-11, which can conveniently control the fixation of the laser emitting fixture 5-9 and the second universal ball bolt 5-11, and at the same time, the laser emitting fixture 5-9 can be rotated to facilitate the detection of the positioning of the laser 10.

[0058] Further optimized solution, the connecting rod includes a first connecting piece 5-4 and a second connecting piece 5-13 which are 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 first connecting piece 5-4 and the second connecting piece 5-13 are arranged correspondingly 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, which can realize the deflection and locking of the first universal ball bolt 5-1; 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, which can realize the deflection and locking of the second universal ball bolt 5-11, which is convenient for controlling the emission angle of the laser emitter 5-6, and is flexible and convenient, and can connect clutches of different specifications.

[0059] A further optimized solution is that a first double-wing handle screw 5-3 and a second double-wing handle screw 5-12 are threadedly connected between the first connecting plate 5-4 and the second connecting plate 5-13. The first double-wing handle screw 5-3 is arranged on the upper part of the first connecting plate 5-4 and is used to lock the first universal ball bolt 5-1, and the second double-wing handle screw 5-12 is arranged on the lower part of the second connecting plate 5-13 and is used to lock 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 distance between 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 distance between the upper parts of the first connecting piece 5-4 and the second connecting piece 5-13 can be controlled to realize the rotation and locking of the first universal ball bolt 5-1, which is convenient for adjustment; and when the second double-wing handle screw 5-12 rotates, the distance between the lower parts of the first connecting piece 5-4 and the second connecting piece 5-13 can be controlled to realize the rotation and locking of the second universal ball bolt 5-11, which is convenient for adjustment.

[0060] Further optimization scheme, laser receiving unit 11 includes aluminum profile 11-2 arranged on box body 6, laser receiver fixture is arranged on aluminum profile 11-2, laser receiver fixture is installed with laser receiver 11-3, detection laser 10 is received by laser receiver 11-3 after passing through clutch. Aluminum profile 11-2 is fixed to the right side of box body 6 at 221.72mm from the top of box body 6 by four bolts, in order to ensure that laser receiver 11-3 and laser transmitter 5-6 are in concentric position, laser receiver 11-3 is fixed to aluminum profile 11-2 at 251.90mm near pressure plate 4 by laser receiver 11-3 fixture, so that detection laser 10 is received by laser receiver 11-3 after passing through clutch, and the light amount of detection laser 10 received is measured by optical fiber amplifier 1-2.

[0061] A further optimized solution is that 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 laser receiver 11-3 fixture includes a laser receiver lower fixture 11-4 fixed on the aluminum profile 11-2, a C-shaped guide rail is connected to the laser receiver lower fixture 11-4 by bolts, and a laser receiver upper fixture 11-5 is slidably connected in the C-shaped guide rail. The laser receiver upper fixture 11-5 is lifted and slid in the C-shaped guide rail by the fifth bolt 11-1 to control the distance between the laser receiver upper fixture 11-5 and the laser receiver lower fixture 11-4. The fifth bolt 11-1 is rotated to adjust the distance between the laser receiver upper fixture 11-5 and the laser receiver 11-3. When the distance is smaller than the diameter of the laser receiver 11-3, the laser receiver 11-3 is fixed.

[0062] The present invention also discloses a detection system based on a warping deformation inspection device for a clutch friction element, including a power supply system and a display instrument. The power supply system is used to supply power to the detection device, and the display instrument is electrically connected to the optical fiber amplifier unit 1 to display the detection result. The power supply system is used to supply power to the optical fiber amplifier 1-2 and the laser transmitter 5-6, and can also drive the hydraulic drive motor of the detection component to drive the clutch to rotate at high speed; and the display instrument is built into the optical fiber amplifier 1-2 and connected to the optical fiber amplifier 1-2 to display the detection result.

[0063] In one embodiment of the present application, the power supply system consists of a 12v mobile power supply and a 5v power supply, which directly powers the fiber amplifier unit 1 and the laser emitter 5-6 units, wherein the 12v mobile power supply powers the fiber amplifier 1-2, and the 5v mobile power supply powers the laser emitter 5-6.

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

[0065] In one embodiment of the present application, the laser emitting unit 5 is used in an ambient temperature between -10-+55°C and has a protection level of IP54.

[0066] In one embodiment of the present application, when the laser transmitter 5-6 emits red light, if the clutch friction element does not warp or deform at this time, the laser receiver 11-3 installed concentrically with the laser transmitter 5-6 receives most of the red light and physically 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 purpose of detection, the laser receiver 11-3 uses a fiber optic element with a built-in lens-type top direction, and its surface medium uses a fluorocarbon polymer coating to prevent liquid from entering, which makes it oil-resistant and chemical-resistant; at the same time, the curved surface design of the detection surface of the laser receiver 11-3 facilitates the flow of liquid to prevent it from 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 is used in an ambient temperature of -10-+55°C and has a protection grade of IP54.

[0069] In an example of the present application, after the power supply system supplies power to the optical fiber transmitting 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. The optical fiber amplifier 1-2 responds at an ultra-high speed of 16us to digitally present the amount of light received.

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

[0071] In one embodiment of the present application, a display meter is built into the optical fiber amplifier 1-2. When the amount of received light is greater than a threshold value, it is determined that the friction element is not warped, the optical fiber amplifier 1-2 outputs a low level, and the meter has no display. When the amount of received light is less than a threshold value, it is determined that the friction element is warped, the optical fiber amplifier 1-2 outputs a high level, and the meter lights up red.

[0072] See attached Figure 6 As shown, the clutch friction element warping deformation detection system of the present application has the following detection principle:

[0073] When the friction element has no warping deformation and the clutch is in a disengaged state, the detection laser 10 emitted by the laser transmitter 5-6 is not blocked, most of the detection laser 10 is received by the laser receiver 11-3, and the optical signal is physically transmitted to the optical fiber amplifier 1-2 through the optical fiber unit. 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, and the detection laser 10 emitted by the laser transmitter 5-6 is reflected at the warped part, so part of the laser no longer enters the laser receiving unit 11 along the original route; the amount of light received by the laser receiver 11-3 is reduced, and the optical signal transmitted to the optical fiber amplifier 1-2 is reduced, and the reading of the optical fiber amplifier 1-2 is reduced until the detection laser 10 emitted by the laser transmitter 5-6 is completely blocked by the warped part, at which time the reading of the laser transmitter 5-6 is zero.

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

[0076] If the amount of received light is greater than the threshold, it is determined that the friction element has no warping deformation, the optical fiber amplifier 1-2 outputs a low level, and the instrument displays;

[0077] If the amount of light received is greater than the threshold, the friction element will bend and deform, the optical fiber will amplify and output a high level, and the instrument will display it.

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

[0079] A stand consisting of the motor shaft 2, the coupling 3, the pressure plate 4, the box 6, the input shaft 13, the output shaft 7, the input transparent cover 14, and the output transparent cover 8 is completed on the box 6, and a clutch consisting of the friction plate 12 and the steel plate 15 is installed;

[0080] Install the optical fiber amplifier unit 1, the laser emitting unit 5, and the laser receiving unit 11 on the stand in sequence to complete the construction of the clutch friction element warping deformation detection device. Figure 1 As shown;

[0081] Physically connect the optical fiber unit of the laser receiver 11-3 to the optical fiber amplifier 1-2;

[0082] The 12V mobile power supply of the power supply system supplies power to the optical fiber amplifiers 1-2, while the 5V mobile power supply supplies power to the laser transmitters 5-6;

[0083] Set the threshold of the optical fiber amplifier 1-2, rotate the first double-wing handle screw 5-3, the second double-wing handle screw 5-12 and the inner gear 5-5, and adjust the direction of the detection laser 10 emitted by the excitation emitter so that the reading of the optical fiber amplifier 1-2 reaches the maximum value;

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

[0085] When the hydraulic motor rotates at high speed for a long time, the clutch is in an environment of high surface pressure and high speed difference. The large amount of friction heat generated during the engagement process 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 large thermal stress and causes the friction element to warp in a conical shape.

[0086] The warping deformation of the friction element causes the detection laser 10 to be reflected at the warped part, the amount of light received by the laser receiver 11-3 is reduced, the optical signal transmitted to the optical fiber amplifier 1-2 is reduced, and the reading of the optical fiber amplifier 1-2 gradually decreases from the maximum value. When the reading decreases below the threshold, the instrument display of the optical fiber amplifier 1-2 lights up, judging that the friction element is bent and deformed, and the detection is completed.

[0087] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0088] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A clutch friction element warping deformation detection device, characterized in that: include: A box (6), the box (6) serving as a frame and mounting base for the test device; A detection component, the detection component is arranged on the box (6), and the detection component is used to install the clutch to be detected; A laser emitting unit (5), wherein the laser emitting unit (5) is arranged on a side wall of the box (6), and the detection laser (10) emitted by the laser emitting unit (5) is directed toward the clutch; A laser receiving unit (11), the laser receiving unit (11) being arranged on the housing (6) and corresponding to the laser emitting unit (5), and receiving the detection laser (10); An optical fiber amplifier unit (1), the optical fiber amplifier unit (1) being arranged on the housing (6) and corresponding to the laser receiving unit (11), and being used for detecting the intensity of the detection laser (10) received by the laser receiving unit (11).

2. The clutch friction element warping deformation detection device according to claim 1, characterized in that: The detection assembly comprises an input shaft (13) rotatably connected to the housing (6), the input shaft (13) extending out of the housing (6) and being transmission-connected to the motor shaft (2); the input shaft (13) is transmission-connected to an output shaft (7) via the clutch, and the output shaft (7) is rotatably connected to the housing (6).

3. The clutch friction element warping deformation detection device according to claim 1, characterized in that: The optical fiber amplifier unit (1) comprises an optical fiber amplifier fixture (1-4) fixedly mounted on the box (6); an optical fiber amplifier (1-2) corresponding to the laser receiving unit (11) is arranged on the optical fiber amplifier fixture (1-4); and a first locking module for fixing the optical fiber amplifier (1-2) is arranged on the optical fiber amplifier fixture (1-4).

4. The clutch friction element warping deformation detection device according to claim 1, characterized in that: The laser emitting unit (5) comprises a first universal ball bolt (5-1) locked and fixed on the box body (6), a connecting rod is arranged on the first universal ball bolt (5-1), a laser emitting fixture (5-9) is installed on the bottom end of the connecting rod through a second universal ball bolt (5-11), a laser emitter (5-6) is installed on the laser emitting fixture (5-9), and the laser emitter (5-6) is used to emit the detection laser (10).

5. The clutch friction element warping deformation detection device according to claim 4, characterized in that: The connecting rod comprises a first connecting plate (5-4) and a second connecting plate (5-13) which are arranged correspondingly, the first universal ball bolt (5-1) is rotatably connected between the top ends of the first connecting plate (5-4) and the second connecting plate (5-13), and the second universal ball bolt (5-11) is rotatably connected between the bottom ends of the first connecting plate (5-4) and the second connecting plate (5-13).

6. The clutch friction element warping deformation detection device according to claim 5, characterized in that: A first double-wing handle screw (5-3) and a second double-wing handle screw (5-12) are threadedly connected between the first connecting piece (5-4) and the second connecting piece (5-13); the first double-wing handle screw (5-3) is arranged on the upper part of the first connecting piece (5-4) and is used to lock the first universal ball bolt (5-1); the second double-wing handle screw (5-12) is arranged on the lower part of the second connecting piece (5-13) and is used to lock the second universal ball bolt (5-11).

7. The clutch friction element warping deformation detection device according to claim 1, characterized in that: The laser receiving unit (11) comprises an aluminum profile (11-2) arranged on the box (6), a laser receiver fixture is arranged on the aluminum profile (11-2), a laser receiver (11-3) is installed on the laser receiver fixture, and the detection laser (10) is received by the laser receiver (11-3) after passing through the clutch.

8. The clutch friction element warping deformation detection device according to claim 7, characterized in that: The laser receiver fixture comprises a laser receiver lower fixture (11-4) arranged on the aluminum profile (11-2), a C-shaped guide rail (11-6) being arranged on the laser receiver lower fixture (11-4), an laser receiver upper fixture (11-5) being slidably arranged on the C-shaped guide rail (11-6), and the laser receiver (11-3) being clamped between the laser receiver upper fixture (11-5) and the laser receiver lower fixture (11-4).

9. A clutch friction element warping deformation detection system, characterized in that: It comprises a clutch friction element warping deformation detection device as claimed in any one of claims 1 to 8, a power supply system and a display instrument, wherein the power supply system is used to supply power to the clutch friction element warping deformation detection device, and the display instrument is electrically connected to the optical fiber amplifier unit (1) for displaying the detection result.

10. A method for detecting warpage of a clutch friction element, characterized in that The following steps are involved: Assembling the clutch friction element warping deformation detection system as claimed in claim 9; The threshold of the optical fiber amplifier unit (1) is set, and then the emission position of the detection laser (10) of the laser emitting unit (5) is adjusted, and the laser emitting unit (5) and the laser receiving unit (11) are confirmed to be facing each other when the number displayed on the optical fiber amplifier unit (1) reaches the maximum; When the optical fiber amplifier unit (1) has a stable light receiving amount greater than a threshold, the detection component is started to drive the clutch to be detected on the detection component to work; Under the long-term high-speed rotation of the detection component, the friction element of the clutch undergoes conical warping deformation; The warping deformation of the friction element of the clutch causes the laser to reflect at the warped portion, the optical signal detected by the optical fiber amplifier unit (1) decreases, and the number indicated on the display instrument gradually decreases from the maximum value. When the number decreases below the threshold, the display instrument alarms, judging that the friction element is bent and deformed, and the detection ends.

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