A universal high-precision inspection tool for flywheel coaxiality and runout detection

Abstract

The present invention relates to a universal high-precision inspection tool for flywheel coaxiality and runout detection, comprising a frame and a handle, wherein the handle is connected to one end of a ball stud, the ball stud is connected to the frame through a threaded bushing, the other end of the ball stud is connected to one end of a lever, the other end of the lever is connected to the bottom end of a core shaft, the center of the lever is rotatably connected to the frame through a round pin shaft, the outer sleeve of the core shaft is provided with a main shaft, the outer sleeve of the main shaft is provided with a fixed sleeve, an oil injection channel is provided between the fixed sleeve and the main shaft, the fixed sleeve is fixedly connected to the frame, the outer sleeve of the main shaft is provided with a thrust bearing, and a concentricity gauge is provided on the top of the core shaft. The present invention not only has high inspection tool accuracy, small measurement error, convenient operation, and high versatility, but also an oil injection hole is provided on the side of the main shaft of the inspection tool for filling lubricating oil to lubricate the transmission mechanism and bearings, thereby ensuring the inspection tool's accuracy and life.

Description

Technical Field

[0001] The invention relates to the technical field of flywheel detection, and in particular to a universal high-precision detection tool for flywheel coaxiality and runout detection. Background Art

[0002] The flywheel of an automobile is an important component, and its main function is to act as an energy storage device to balance and regulate the output of the engine. In a four-stroke engine, the flywheel helps store and release energy through its large moment of inertia to reduce the load and fluctuation of the engine.

[0003] Because the engine's work is discontinuous, this will lead to unstable engine speed. When a cylinder is working, the engine speed will increase, and the flywheel's kinetic energy will increase, storing the excess energy. When the engine speed decreases, the flywheel's kinetic energy decreases, releasing the stored energy, thereby maintaining the engine's stable operation.

[0004] The energy storage and release function of the flywheel can effectively reduce the speed fluctuation during the operation of the engine and improve the running stability and comfort of the engine. Therefore, the flywheel is an indispensable component in the engine system of the car.

[0005] Among them, conventional comprehensive inspection fixtures have great limitations. They are all special inspection fixtures of a single type, with simple structure, low design and manufacturing precision, and cannot be used for high-precision flywheel inspection. Summary of the invention

[0006] In view of the above problems, the present invention provides a universal high-precision inspection fixture for flywheel coaxiality and runout detection. The inspection fixture not only has high precision, small measurement error, convenient operation and high versatility, but also an oil filling hole is provided on the side of the main shaft of the inspection fixture for filling lubricating oil to lubricate the transmission mechanism and bearings, thereby ensuring the accuracy and life of the inspection fixture.

[0007] In order to achieve the above-mentioned purpose and other related purposes, the technical solution provided by the present invention is as follows:

[0008] A universal high-precision inspection tool for flywheel coaxiality and runout detection, comprising a frame and a handle, wherein the handle is connected to one end of a ball stud, the ball stud is connected to the frame through a threaded bushing, the other end of the ball stud is connected to one end of a lever, the other end of the lever is connected to the bottom end of a spindle, the center of the lever is rotatably connected to the frame through a round pin shaft, a main shaft is provided on the outer sleeve of the spindle, a fixed sleeve is provided on the outer sleeve of the spindle, an oil injection channel is provided between the fixed sleeve and the spindle, the fixed sleeve is fixedly connected to the frame, a thrust bearing is provided on the outer sleeve of the spindle, a concentricity gauge is provided on the top of the spindle, a flywheel shaft hole runout detection mechanism is provided on the top of the concentricity gauge, a slide is provided on the side of the flywheel shaft hole runout detection mechanism, a guide rail is provided at the bottom of the slide, the guide rail is provided on the frame, a bracket is provided on the top of the slide, a second micrometer is connected to one end of the bracket, and a second contact is provided at the bottom of the second micrometer.

[0009] Furthermore, one end of the bracket is connected to a micrometer clamp, the micrometer clamp is provided with a third micrometer, one end of the third micrometer is provided with a third contact, the outer sleeve of the third contact is provided with a second spring, one end of the second spring is connected to one end of a second transmission rod, and a second round pin is provided at the center of the second transmission rod.

[0010] Furthermore, the second round pin is arranged on the micrometer clamp.

[0011] Furthermore, the shaft hole runout detection mechanism of the flywheel includes a first body and a first micrometer, the first body is provided with the first micrometer, the first body is connected to the top of the concentricity gauge, the bottom of the first body is provided with a first spring seat, the first spring seat is connected to the first spring, one end of the first spring is connected to one end of the first transmission rod, and the other end of the first transmission rod is abutted against the first contact of the first micrometer.

[0012] Furthermore, a first round pin is provided at the center of the first transmission rod, and the first round pin is provided on the first body.

[0013] Furthermore, a stop screw is provided between the first micrometer and the first spring, and the stop screw is provided on the first body.

[0014] Furthermore, a baffle is provided at one end of the guide rail.

[0015] Furthermore, a dust cover is provided on the outside of the thrust bearing, and the dust cover is provided on the main shaft.

[0016] Furthermore, an oil plug is provided at the entrance of the oil filling channel.

[0017] Furthermore, the cross section of the main shaft is in a "T" shape.

[0018] The present invention has the following positive effects:

[0019] 1. The present invention detects the concentricity of the flywheel shaft hole through the concentricity gauge, and also detects the shaft hole runout, the clutch friction surface flatness and runout, the clutch friction surface and the crankshaft surface parallelism, and the clutch installation positioning hole circular runout. Not only does the inspection tool have high precision, small measurement error, convenient operation, high versatility, but also can provide accurate data support for the overall evaluation of the flywheel disc.

[0020] 2. The present invention provides an oil filling hole on the side of the main shaft of the inspection fixture for filling lubricating oil to lubricate the transmission mechanism and the bearings, thereby ensuring the accuracy and life of the inspection fixture. At the same time, through the isolation forest algorithm based on Lagrange interpolation and combined with the construction of a flywheel detection model, various indicators of the flywheel are evaluated, which can not only further accurately evaluate the detection of the flywheel, but also does not require manual participation throughout the process, thereby reducing the generation of manual errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the shaft hole runout detection mechanism of the flywheel of the present invention;

[0023] Figure 3 A schematic structural diagram of the connection of the third micrometer of the present invention;

[0024] Figure 4 It is a schematic diagram of the method flow of the present invention;

[0025] Figure 5 It is a schematic diagram of the process of the isolation forest algorithm based on Lagrangian interpolation of the present invention;

[0026] Figure 6 The present invention is a schematic diagram of a flow chart for constructing a flywheel detection model and evaluating various flywheel indicators.

[0027] Explanation of the numbers in the figure: 1-handle, 2-cylindrical pin, 3-ball stud, 4-threaded bushing, 5-lever, 6-round pin shaft, 7-spindle, 8-fixed bushing, 9-flywheel, 10-oil filling channel, 11-oil plug, 12-core shaft, 13-thrust bearing, 14-wedge-shaped expansion block, 15-dust cover, 16-flywheel shaft hole runout detection mechanism, 1601-first body, 1602-first spring seat, 1603-first spring, 1604-first transmission rod , 1605-first contact pin, 1606-first round pin, 1607-stop screw, 1608-first micrometer, 1609-first contact, 17-slide, 18-guide rail, 19-second micrometer, 1901-second contact, 20-baffle, 21-micrometer, 22-third micrometer, 23-third contact, 24-second spring, 25-second transmission rod, 26-second round pin, 27-frame, 28-concentricity gauge, 29-bracket. DETAILED DESCRIPTION

[0028] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0029] Example 1: Figure 1 As shown, a universal high-precision inspection tool for flywheel coaxiality and runout detection includes a frame 27 and a handle 1, wherein the handle 1 is connected to one end of a ball stud 3, and the ball stud 3 is connected to the frame 27 through a threaded bushing 4, and the other end of the ball stud 3 is connected to one end of a lever 5, and the other end of the lever 5 is connected to the bottom end of a spindle 12, and the center of the lever 5 is rotatably connected to the frame 27 through a round pin 6, and the outer sleeve of the spindle 12 is provided with a main shaft 7, and the outer sleeve of the main shaft 7 is provided with a fixed shaft sleeve 8, and an oil injection channel 10 is provided between the fixed shaft sleeve 8 and the main shaft 7. The fixed sleeve 8 is fixedly connected to the frame 27, the outer sleeve of the main shaft 7 is provided with a thrust bearing 13, the top of the core shaft 12 is provided with a concentricity gauge 28, the top of the concentricity gauge 28 is provided with a flywheel shaft hole runout detection mechanism 16, the side of the flywheel shaft hole runout detection mechanism 16 is provided with a slide 17, the bottom of the slide 17 is provided with a guide rail 18, the guide rail 18 is arranged on the frame 27, the top of the slide 17 is provided with a bracket 29, one end of the bracket 29 is connected to a second micrometer 19, and the bottom of the second micrometer 19 is provided with a second contact 1901.

[0030] In this embodiment, if Figure 3As shown, one end of the bracket 29 is connected to a dial gauge clamp 21, and a third dial gauge 22 is provided on the dial gauge clamp 21. A third contact 23 is provided at one end of the third dial gauge 22, and a second spring 24 is provided on the outer sleeve of the third contact 23. One end of the second spring 24 is connected to one end of a second transmission rod 25, and a second round pin 26 is provided at the center of the second transmission rod 25.

[0031] In this embodiment, the second round pin 26 is disposed on the dial gauge clamp 21 .

[0032] In this embodiment, if Figure 2 As shown, the flywheel shaft hole runout detection mechanism 16 includes a first body 6101 and a first micrometer 1608, the first body 1601 is provided with the first micrometer 1608, the first body 1601 is connected to the top of the concentricity gauge 28, the first body 1601 is provided with a first spring seat 1602 at the bottom, the first spring seat 1602 is connected to the first spring 1603, one end of the first spring 1603 is connected to one end of the first transmission rod 1604, and the other end of the first transmission rod 1604 is abutted against the first contact 1609 of the first micrometer 1608.

[0033] In this embodiment, a first round pin 1606 is disposed at the center of the first transmission rod 1604 , and the first round pin 1606 is disposed on the first body 1601 .

[0034] In this embodiment, a stop screw 1607 is provided between the first micrometer 1608 and the first spring 1603 , and the stop screw 1607 is provided on the first body 1601 .

[0035] In this embodiment, a baffle 20 is provided at one end of the guide rail 18 .

[0036] In this embodiment, a dust cover 15 is provided outside the thrust bearing 13 , and the dust cover 15 is provided on the main shaft 7 .

[0037] In this embodiment, an oil plug 11 is provided at the inlet of the oil filling passage 10 .

[0038] In this embodiment, the cross section of the main shaft 7 is in a "T" shape.

[0039] Working principle of the present invention:

[0040] 1. Install the flywheel 9 on the T plane.

[0041] 2. Tighten the knob handle. The knob drives the transmission rod through the thread through the lever mechanism below to push the spindle upward.

[0042] 3. The main shaft cooperates with three wedge-shaped expansion blocks 14. When the main shaft is pushed upward, the wedge-shaped expansion blocks expand, thereby clamping the detection reference hole of the flywheel.

[0043] 4. A plane ball bearing is installed on the main shaft, and the flywheel can rotate in a circle on the platform. During the rotation of the flywheel, the coaxiality, plane runout, circular runout and other tests of the flywheel are carried out with a measuring table.

[0044] 5.3 The wedge-shaped expansion blocks 14 are provided with a push pin, and the front end of the push pin is provided with a compression spring. After the inspection is completed, the knob handle is loosened to drive the transmission rod through the lever structure to return the main shaft to its original position. The wedge-shaped expansion block drives the push pin through the compression spring to retract the expansion block to its original position. The workpiece is loosened and can be removed from the inspection fixture, and the inspection process is completed.

[0045] 6. There is an oil filling hole on the side of the main shaft of the inspection fixture for filling lubricating oil to lubricate the transmission mechanism and bearings to ensure the accuracy and life of the inspection fixture.

[0046] Embodiment 2: Based on the universal high-precision inspection tool for flywheel coaxiality and runout detection in Embodiment 1, the present invention is further illustrated and described below.

[0047] like Figure 1 As shown, a universal high-precision inspection tool for flywheel coaxiality and runout detection includes a frame 27 and a handle 1, wherein the handle 1 is connected to one end of a ball stud 3, and the ball stud 3 is connected to the frame 27 through a threaded bushing 4, and the other end of the ball stud 3 is connected to one end of a lever 5, and the other end of the lever 5 is connected to the bottom end of a spindle 12, and the center of the lever 5 is rotatably connected to the frame 27 through a round pin 6, and the outer sleeve of the spindle 12 is provided with a main shaft 7, and the outer sleeve of the main shaft 7 is provided with a fixed shaft sleeve 8, and an oil injection channel 10 is provided between the fixed shaft sleeve 8 and the main shaft 7. The fixed sleeve 8 is fixedly connected to the frame 27, the outer sleeve of the main shaft 7 is provided with a thrust bearing 13, the top of the core shaft 12 is provided with a concentricity gauge 28, the top of the concentricity gauge 28 is provided with a flywheel shaft hole runout detection mechanism 16, the side of the flywheel shaft hole runout detection mechanism 16 is provided with a slide 17, the bottom of the slide 17 is provided with a guide rail 18, the guide rail 18 is arranged on the frame 27, the top of the slide 17 is provided with a bracket 29, one end of the bracket 29 is connected to a second micrometer 19, and the bottom of the second micrometer 19 is provided with a second contact 1901.

[0048] In this embodiment, if Figure 4 As shown, a universal high-precision detection method for flywheel coaxiality and runout detection, the method comprising:

[0049] M1. Place the flywheel on the inspection fixture, obtain the concentricity data information of the flywheel in real time based on the concentricity gauge, obtain the runout detection data information of the flywheel shaft hole in real time based on the first micrometer, obtain the runout detection data information of the clutch installation positioning hole in real time based on the second micrometer, and obtain the flatness data information of the flywheel surface based on the third micrometer;

[0050] M2. Based on the concentricity data information of the flywheel, the runout detection data information of the flywheel shaft hole, the runout detection data information of the clutch mounting positioning hole and the flatness data information of the flywheel surface, the data is processed using an isolation forest algorithm based on Lagrange interpolation to obtain the processed comprehensive data information of the flywheel;

[0051] M3. Based on the processed comprehensive data information of the flywheel, a flywheel detection model is constructed to evaluate various indicators of the flywheel to obtain evaluation data information of various indicators of the flywheel;

[0052] M4. Based on the evaluation data information of various indicators of the flywheel, a detection function Q of the flywheel is established, and the detection value of the flywheel is calculated to obtain the detection value data information of the flywheel.

[0053] In this embodiment, the method further includes:

[0054] M5. Based on the detection value data information of the flywheel, a preset threshold is set. If the detection value of the flywheel is greater than the preset threshold, the flywheel meets the standard; if the detection value of the flywheel is less than the preset threshold, the flywheel does not meet the standard.

[0055] In this embodiment, if Figure 5 As shown, in step M2, the use of the isolation forest algorithm based on Lagrangian interpolation to process the data includes:

[0056] M21. Based on the flywheel concentricity data information, the flywheel shaft hole runout detection data information, the clutch mounting positioning hole runout detection data information and the flywheel surface flatness data information, establish the flywheel comprehensive data function G,

[0057]

[0058] Perform summation processing on various data of the flywheel to obtain comprehensive data information of the flywheel;

[0059] M22. Based on the comprehensive data information of the flywheel, establish the Lagrangian interpolation function H of the flywheel,

[0060]

[0061] Among them, y i is the comprehensive data information of the flywheel, n is the sample size, βi is the Lagrangian interpolation factor of the flywheel, f is the Lagrangian gradient function of the flywheel, g is the Lagrangian difference function of the flywheel, and the comprehensive data of the flywheel is interpolated and calculated to obtain the comprehensive data information of the flywheel after interpolation;

[0062] M23. Based on the interpolated flywheel comprehensive data information, establish the flywheel abnormal correlation score function W,

[0063]

[0064] Among them, z is the comprehensive data information of the flywheel after interpolation, λ 1 , 2 and λ 3 It is the determining factor of the abnormal correlation of the flywheel. The data with low abnormal correlation of the flywheel data are eliminated to obtain the comprehensive data information of the processed flywheel.

[0065] In this embodiment, if Figure 6 As shown, in step M3, the flywheel detection model is constructed and various flywheel indicators are evaluated, including:

[0066] M31. Based on the processed comprehensive data information of the flywheel, a flywheel detection data set is established;

[0067] M32. Input the flywheel detection data set into the flywheel detection model for training and learning, and determine the flywheel detection function U,

[0068]

[0069] Among them, r is the detection data set of the flywheel, ω 1 ,ω 2 and ω 3 is the detection factor of the flywheel, and the trained flywheel detection model is obtained;

[0070] M33. Based on the trained flywheel detection model, the flywheel detection data set is input, and various indicators of the flywheel are evaluated to obtain evaluation data information of various indicators of the flywheel.

[0071] In this embodiment, the detection function Q of the flywheel is,

[0072]

[0073] Among them, q j is the jth index evaluation data information of the flywheel, J is the total number of flywheel indexes, σ j is the weight coefficient for evaluating the j-th indicator of the flywheel.

[0074] In this embodiment, the present invention provides a universal high-precision detection system for flywheel coaxiality and runout detection, including a computer device, which is programmed or configured to execute the steps of any one of the universal high-precision detection methods for flywheel coaxiality and runout detection.

[0075] In this embodiment, the present invention provides a computer-readable storage medium storing a computer program programmed or configured to execute any one of the universal high-precision detection methods for flywheel coaxiality and runout detection.

[0076] Any reference to memory, storage, database or other media used in the embodiments provided in the present application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM) and memory bus dynamic RAM (RDRAM).

[0077] In summary, the present invention not only has high gauge accuracy, small measurement error, convenient operation and high versatility, but also has an oil filling hole on the side of the spindle of the gauge for filling lubricating oil to lubricate the transmission mechanism and bearings, thereby ensuring the gauge accuracy and service life.

[0078] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A universal high-precision inspection tool for flywheel coaxiality and runout detection, comprising a frame (27) and a handle (1), characterized in that: The handle (1) is connected to one end of a ball stud (3), the ball stud (3) is connected to the frame (27) via a threaded bushing (4), the other end of the ball stud (3) is connected to one end of a lever (5), the other end of the lever (5) is connected to the bottom end of a spindle (12), the center of the lever (5) is rotatably connected to the frame (27) via a round pin (6), the outer sleeve of the spindle (12) is provided with a main shaft (7), the outer sleeve of the main shaft (7) is provided with a fixed shaft sleeve (8), an oil injection channel (10) is provided between the fixed shaft sleeve (8) and the spindle (7), the fixed shaft sleeve (8) is fixedly connected to the frame (27), the spindle (7) is provided with a fixed shaft sleeve (8), and the fixed shaft sleeve (8) is fixedly connected to the frame (27). The outer sleeve is provided with a thrust bearing (13); the top of the core shaft (12) is provided with a concentricity gauge (28); the top of the concentricity gauge (28) is provided with a flywheel shaft hole runout detection mechanism (16); a slide table (17) is provided on the side of the flywheel shaft hole runout detection mechanism (16); the bottom of the slide table (17) is provided with a guide rail (18); the guide rail (18) is arranged on the frame (27); the top of the slide table (17) is provided with a bracket (29); one end of the bracket (29) is connected to a second micrometer (19); the bottom of the second micrometer (19) is provided with a second contact (1901); one end of the bracket (29) is connected to a micrometer clamp (21); the micrometer A third micrometer (22) is provided on the gauge clamp (21), a third contact (23) is provided at one end of the third micrometer (22), a second spring (24) is provided on the outer sleeve of the third contact (23), one end of the second spring (24) is connected to one end of a second transmission rod (25), and a second round pin (26) is provided at the center of the second transmission rod (25); the flywheel shaft hole runout detection mechanism (16) comprises a first body (1601) and a first micrometer (1608), the first body (1601) is provided with the first micrometer (1608), the first body (1601) is connected to the top of the concentricity gauge (28), and the first body (160 1), a first spring seat (1602) is provided at the bottom thereof, the first spring seat (1602) is connected to a first spring (1603), one end of the first spring (1603) is connected to one end of a first transmission rod (1604), and the other end of the first transmission rod (1604) is in contact with a first contact (1609) of the first micrometer (1608); the flywheel (9) is mounted on the T plane, the knob handle is tightened, the knob drives the transmission rod through the thread through the lever mechanism below, and the main shaft (7) is pushed upward, the main shaft (7) cooperates with three wedge-shaped expansion blocks (14), and the wedge-shaped expansion blocks (14) expand during the process of pushing the main shaft (7) upward, thereby clamping the detection reference hole of the flywheel (9).

2. The universal high-precision inspection tool for flywheel coaxiality and runout detection according to claim 1 is characterized in that: The second round pin (26) is arranged on the dial gauge clamp (21).

3. The universal high-precision inspection tool for flywheel coaxiality and runout detection according to claim 1 is characterized in that: A first round pin (1606) is provided at the center of the first transmission rod (1604), and the first round pin (1606) is provided on the first body (1601).

4. The universal high-precision inspection tool for flywheel coaxiality and runout detection according to claim 1 is characterized in that: A stop screw (1607) is provided between the first micrometer (1608) and the first spring (1603), and the stop screw (1607) is provided on the first body (1601).

5. The universal high-precision inspection tool for flywheel coaxiality and runout detection according to claim 1 is characterized in that: A baffle (20) is provided at one end of the guide rail (18).

6. The universal high-precision inspection tool for flywheel coaxiality and runout detection according to claim 1 is characterized in that: A dust cover (15) is provided outside the thrust bearing (13), and the dust cover (15) is arranged on the main shaft (7).

7. The universal high-precision inspection tool for flywheel coaxiality and runout detection according to claim 1 is characterized in that: An oil plug (11) is provided at the entrance of the oil injection channel (10).

8. The universal high-precision inspection tool for flywheel coaxiality and runout detection according to claim 1 is characterized by: The cross-section of the main shaft (7) is in the shape of a "T".

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