CN201983916U - Vibration analysis test device of automobile speed changer - Google Patents
Vibration analysis test device of automobile speed changer Download PDFInfo
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- CN201983916U CN201983916U CN2010206936525U CN201020693652U CN201983916U CN 201983916 U CN201983916 U CN 201983916U CN 2010206936525 U CN2010206936525 U CN 2010206936525U CN 201020693652 U CN201020693652 U CN 201020693652U CN 201983916 U CN201983916 U CN 201983916U
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- automotive transmission
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- drive motor
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- direct current
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Abstract
The utility model discloses a vibration analysis test method of an automobile speed changer and a device. The device comprises a base, a main control module, a frequency converter, a speed regulator, a driving motor, a load direct-current motor, the automobile speed changer, an industrial personal computer, a data acquisition card and a counting card, wherein a power supply conversion module is adopted for supplying power to other modules; the frequency converter is adopted for controlling and regulating the rotating speed of the driving motor; a load resistor and a generator speed regulating box are adopted for regulating and controlling the torque of the load motor; the foundation base and a vibration absorbing pad are adopted for supporting; the vibration absorbing pad is adopted for isolating vibration between the automobile speed changer and the base; an elastic pin coupler is adopted for being connected with the automobile speed changer and the motor and isolating vibration signals; and a vibratory acceleration sensor is adopted for acquiring the vibration signals of an automobile speed changer shell. In the test method and the control device, the integration level is high, the expansibility of the device is strong, the cost is low, the basic operation of an automobile speed changing box can be effectively simulated, and the vibration signals and the rotating speed signals of the automobile speed changer can be effectively acquired, so that the simulating environment for fault diagnosis and analysis is provided.
Description
Technical field
The utility model relates to automotive transmission vibration analysis experimental technique, specifically is a kind of automotive transmission vibration analysis test set.
Background technology
Automotive transmission is in production and assembling process, exist in a large number owing to making and assemble the quality problems that reason such as bad causes, new cars transmission failure form is mainly reflected in the manufacturing and rigging error of gear, axle part, as profile of tooth deviation, gear foozle, assembling off-centre and gear teeth burr etc.From production run management and quality control, tracking angle, the reviewer must be by last quality inspection link, find the quality problems of existence, and wish failure cause to be navigated to concrete inoperative component, promptly realize other assembling process fault diagnosis of part level, to improving the automotive transmission quality control level and guaranteeing that product quality is very important.
The automotive transmission fault can be detected by the abnormal vibrations noise is carried out spectrum analysis method.Because testing process is the process (comprise reverse gear, minimum raising speed and the reduction of speed process that blocks to each gear of top gear) of a variable motion, so the order spectrum analysis method is adopted at large.
Order analysis is one of most important method of rotary body mechanical vibration monitoring and fault diagnosis, order analysis based on the resampling principle is a kind of signal processing method that samples equiangular sampling when realizing signal from grade, and it mainly can solve the overlapping difficulty of bringing of the harmonic component that produces because of the fluctuation of speed.
Automotive transmission vibration analysis and fault diagnosis software adopt the order analysis principle to develop, and need synchronous acquisition automotive transmission hull vibration signal and input shaft rotational speed signal and carry out order analysis.
In development and exploitation automotive transmission vibration analysis and fault diagnosis software process, the correctness and the reliability of need that the vibration signal split axle of checking and test development, Domain Synchronous are average, FFT Fourier transform, order being composed scheduling algorithm.In the actual mechanical process, on the automotive transmission of client's site of deployment is comprehensive performance test bed, test and all have more difficulty from aspects such as time, cost and customer satisfaction.In addition, use under laboratory environment that the automotive transmission of the marketization is comprehensive performance test bed to carry out software test, its cost is also higher.
At present, do not retrieve the patented claim situation of this respect as yet.Therefore, be necessary that development and exploitation are fit under testing laboratory's environment, the simulator stand that carries out the reliability testing of automotive transmission vibration analysis software, its should have cost low, can the basic running environment of simulated automotive variator etc. characteristics.
The utility model content
At above shortcomings in the prior art, the purpose of this utility model is to provide that a kind of cost is low, integrated level is high, the device extendability is strong, can realize the basic running environment of simulated automotive variator, a kind of automotive transmission vibration analysis test set of operating mode functions such as raising speed, reduction of speed, loading, zero load, different gears is provided.
The technical scheme that the utility model adopted is: a kind of automotive transmission vibration analysis test set comprises: a base, top control module, frequency converter, speed regulator, drive motor, load direct current generator, automotive transmission, industrial computer, data collecting card, numbered card; Described top control module output terminal is connected with frequency converter, also is connected with governing box; Described frequency converter is connected with automotive transmission by drive motor; Described governing box is connected with automotive transmission by the load direct current generator; Described drive motor one end is provided with scrambler, and the other end is provided with shaft coupling, is connected with automotive transmission by this shaft coupling; Described automotive transmission is provided with vibration acceleration sensor, and described automotive transmission is connected with the load direct current generator by shaft coupling; Described data collecting card is connected with automotive transmission by vibration acceleration sensor; Described numbered card is connected with drive motor by scrambler; Described industrial computer is connected with data collecting card and numbered card by pci bus; Described base is provided with load direct current generator, automotive transmission, drive motor.
Be provided with beam between described base and the automotive transmission.
Offer square opening in the middle of described base and the beam; Described vibration acceleration sensor is passed this square opening be pasted on the automotive transmission bottom, realize the data acquisition of automotive transmission vibration signal.
Described shaft coupling is an elastic dowel pin shaft coupling; Connect automotive transmission and drive motor, load direct current generator, guarantee that automotive transmission and drive motor, load direct current generator rotate synchronously.
Described data acquisition unit comprises data collecting card and numbered card; Realize the synchronous data collection of vibration signal and tach signal; Adopt scrambler measured automobiles transmission input shaft tach signal, adopt vibration acceleration sensor to gather automotive transmission hull vibration signal.
Advantage of the present utility model:
1, can the basic running environment of simulated automotive variator.The input of drive motor simulated engine, load direct current generator simulation differential mechanism, automotive wheel even load.Automotive transmission analog input rotating speed can reach 3000rpm, realistic automotive transmission service condition.
2, cost is low.This testing table adopts the minicar variator to carry out the dry run test, and drive motor and load direct current generator power are all less, and cost is lower on the whole.
3, be easy to care and maintenance.Adopt shaft coupling etc. to carry out modularization and connect, testing table ingredients such as the motor of conveniently replaced damage, shaft coupling, automotive transmission use in the lectotype selection and are easy to the product bought on the market, and the bulk testing platform for ease of maintenaince and safeguard.Be convenient to the replacing between qualified automotive transmission and the lemon car variator simultaneously, be used to gather master sample and fault sample.
4, load working load direct current generator of the present utility model is realized.Use Dyn. as load, have lower cost with respect to the mechanical torque mode of loading.
5, the utility model can collect automotive transmission vibration signal preferably.Use elastic dowel pin shaft coupling and beam etc. to realize the isolation of automotive transmission and other vibration signal, effectively reduce of the interference of other factors, help fault diagnosis software vibration signal is analyzed the automotive transmission vibration signals collecting.
6, the utility model satisfies the primary demand of vibration analysis and fault diagnosis software reliability testing.Testing table adopts manual minicar variator to carry out dry run, can Validity Test vibration analysis and fault diagnosis software algorithm validity and reliability.The software algorithm of test is equally applicable to other automotive transmissions such as autonomous driving vehicle variator.
Description of drawings
Fig. 1 is an automotive transmission vibration analysis test set block diagram of the present utility model;
Fig. 2 is an automotive transmission vibration analysis test set structural drawing of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, a kind of automotive transmission vibration analysis test set comprises: a base 14, top control module 1, frequency converter 2, speed regulator 6, drive motor 11, load direct current generator 7, automotive transmission 8, industrial computer 3, data collecting card 5, numbered card 4; Described top control module 1 output terminal is connected with frequency converter 2, also is connected with governing box 6; Described frequency converter 2 is connected with automotive transmission 8 by drive motor 11; Frequency converter 2, control and adjusting drive motor 11 rotating speeds.Described governing box is connected with automotive transmission 8 by load direct current generator 7; Speed regulator 6, control and adjustment load direct current generator 7 moments of torsion; Described automotive transmission 8 is used for the test of vibration analysis and fault diagnosis software; Drive motor 11, the input of simulated automotive variator 8 power drives automotive transmission 8 input shafts.
Described drive motor 11 1 ends are provided with scrambler 12, and the other end is provided with shaft coupling, are connected with automotive transmission 8 by this shaft coupling; Described automotive transmission 8 is provided with vibration acceleration sensor, and described automotive transmission 8 is connected with load direct current generator 7 by shaft coupling; Described data collecting card 5 is connected with automotive transmission 8 by vibration acceleration sensor; Described numbered card 4 is connected with drive motor 11 by scrambler 12; Described industrial computer 3 is connected with data collecting card 5 and numbered card 4 by pci bus; Described base 14 is provided with load direct current generator 7, automotive transmission 8, drive motor 11.Be provided with beam 13 between described base 14 and the automotive transmission 8.Described base 14 and the beam 13 middle square openings that offer; Described vibration acceleration sensor is passed this square opening paste and automotive transmission 8 bottoms, realize the data acquisition of automotive transmission 8 vibration signals.Described shaft coupling 10 is an elastic dowel pin shaft coupling 10; Connect automotive transmission 8 and drive motor 11, load direct current generator 7, guarantee that automotive transmission 8 and drive motor 11, load direct current generator 7 rotate synchronously.Described speed regulator 6 output terminals are connected to voltage dependent resistor (VDR), damage speed regulator 6 thyristors when preventing overvoltage under inductive load.
Described data acquisition unit comprises data collecting card 5 and numbered card 4; Realize the synchronous data collection of vibration signal and tach signal; Adopt scrambler 12 measured automobiles variators 8 input shaft rotating speed signals, adopt vibration acceleration sensor to gather automotive transmission 8 hull vibration signals.
As shown in Figure 2, the Theoretical Calculation of lectotype selection foundation is as follows in automotive transmission 8 vibration analysis test sets:
(1) selection of automotive transmission 8: automotive transmission 8 general minicar variators 8 of selecting to have input shaft, intermediate shaft and output shaft, can satisfy software test test basic demand.The green hill MR406 automotive transmission 8 of selecting the green hill, Chongqing to produce in this test unit, its basic parameter is as follows:
Maximum input torque 56.74Nm
Maximum input speed 5500rpm
Each grade speed ratio: 1 grade 3.428,2 grades 2.108,3 grades 1.379,4 grades 1.00, reverse gear 3.600
Version: four drive shifts, a reverse gear and synchronously complete
Overall size: 453.5 * 325 * 285
Gear changing mode: drag-line, hand shift
Weight 22.5kg.
(2) selection of drive motor 11: according to the parameter of automotive transmission 8, the power of drive motor 11 is desirable more less, also can reduce unnecessary waste, can choose the motor that power is 2KW.Simultaneously, use frequency converter 2 speed governing, making its actuating speed is 2000～3000r/min.Choosing drive motor 11 models is Y90L-2, and its basic parameter is as follows:
Rated power: 2.2 kilowatts
Rated voltage: 380 volts
Rated speed: 2840 rev/mins
Rated current: 4.7 amperes
Torque capacity/nominal torque: 2.3.
(3) selection of shaft coupling 10:
Use shaft coupling 10 between drive motor 11 and the automotive transmission 8,, select elastic dowel pin shaft coupling 10 for use for separating vibration and impact.
Nominal torque:
Under this situation, torque changes less, and working condition COEFFICIENT K A gets 1.3, and then calculating torque is:
T
ca＝K
A*T＝1.3*95.5*103N.mm＝124.15N.m
The torque allowable of the TL6 type rubbercushioned sleeve bearing coupling of looking into from GB4323-84 10 is 250N.m, and maximum (top) speed allowable is 3800r/min, and the diameter of axle is between the 32-42mm, so share.
(4) selection of load direct current generator 7
The power of load direct current generator 7 and rotating speed carry out reference according to the rated power greater than drive motor 11 and choose.Load direct current generator 7 is chosen the Z2-32 direct current generator, and its rated power is 2.2kw, and rated speed is 1500r/min.
(5) selection of vibration acceleration sensor: the range of speeds of automotive transmission 8 is between 1500 rev/mins to 3600 rev/mins.Just the speed-frequency maximal value of source vibration signal is probably about 60Hz.Because the maximum order of analyzing is about 150 rank, the vibration frequency maximal value of Ce Lianging is about 9KHz so, and this is an important indicator of selecting vibration transducer.Select the built-in ICP formula of Lanace acceleration transducer acceleration transducer.Its characteristics comprise Low ESR output, and anti-interference noise I is grown Distance Transmission; The cost performance height is easy for installation; Stability is high, anti-dust, humidity, anti-harmful gas.
Concrete parameter is as follows:
Model: LC0154T
Sensitivity: 250mV/g
Frequency range: 0.2-7700Hz
Weight: 32gm
Range: 20g
(6) selection of data collecting card 5: the vibration signals collecting calorie requirement satisfies three conditions, and suitable sample frequency and precision possess certain signal condition ability, possess the function of synchronization timing.
The sample frequency of simulating signal is by two parameter decisions of the highest order of maximum speed and analysis.For sound and vibration signals collecting, sampling rate draws according to following formula: sampling rate=2.56 * the highest calculating order * maximum speed (RPM)/60.
Built-in circuit formula acceleration transducer needs direct current supply and two kinds of signal condition functions of frequency overlapped-resistable filter.
Order analysis needs synchronous acquisition vibration signal and rotating speed timing signal.
Based on these three standards, the product P CI-4474 dynamic signal acquisition card of American National instrument (NI) company production and the PCI-6601 counter of NI company have been selected.
Claims (4)
1. automotive transmission vibration analysis test set is characterized in that:
Comprise:
One base, top control module, frequency converter, speed regulator, drive motor, load direct current generator, automotive transmission, industrial computer, data collecting card, numbered card;
Described top control module output terminal is connected with frequency converter, also is connected with governing box;
Described frequency converter is connected with the automobile automotive transmission by drive motor;
Described governing box is connected with automotive transmission by the load direct current generator;
Described drive motor one end is provided with scrambler, and the other end is provided with shaft coupling, is connected with automotive transmission by this shaft coupling;
Described automotive transmission is provided with vibration acceleration sensor, and described automotive transmission is connected with the load direct current generator by shaft coupling;
Described data collecting card is connected with automotive transmission by vibration acceleration sensor;
Described numbered card is connected with drive motor by scrambler;
Described industrial computer is connected with data collecting card and numbered card by pci bus;
Described base is provided with load direct current generator, automotive transmission, drive motor.
2. by the described automotive transmission vibration analysis test set of claim 1, it is characterized in that: be provided with beam between described base and the automotive transmission.
3. by the described automotive transmission vibration analysis test set of claim 1, it is characterized in that: offer square opening in the middle of described base and the beam; Described vibration acceleration sensor is passed this square opening be pasted on the automotive transmission bottom, realize the data acquisition of automotive transmission vibration signal.
4. by the described automotive transmission vibration analysis test set of claim 1, it is characterized in that: described shaft coupling is an elastic dowel pin shaft coupling; Connect automotive transmission and drive motor, load direct current generator, guarantee that automotive transmission and drive motor, load direct current generator rotate synchronously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206936525U CN201983916U (en) | 2010-12-31 | 2010-12-31 | Vibration analysis test device of automobile speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206936525U CN201983916U (en) | 2010-12-31 | 2010-12-31 | Vibration analysis test device of automobile speed changer |
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| Publication Number | Publication Date |
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| CN201983916U true CN201983916U (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206936525U Expired - Fee Related CN201983916U (en) | 2010-12-31 | 2010-12-31 | Vibration analysis test device of automobile speed changer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564756A (en) * | 2010-12-31 | 2012-07-11 | 中国科学院沈阳自动化研究所 | Automobile transmission vibration analysis testing method and device |
| CN103674457A (en) * | 2013-11-12 | 2014-03-26 | 陕西国力信息技术有限公司 | AMT system scanning frequency vibration endurance test method |
| CN104266749A (en) * | 2014-10-24 | 2015-01-07 | 重庆市科学技术研究院 | Device and method for offline detecting NVH (Noise Vibration and Harshness) of vehicle generator |
| CN105675292A (en) * | 2014-11-21 | 2016-06-15 | 中国科学院沈阳自动化研究所 | Gearbox no-load test inertia loading mechanism |
| US11428735B1 (en) | 2019-03-14 | 2022-08-30 | Maxim Integrated Products, Inc. | System for monitoring and controlling an integrated circuit testing machine |
-
2010
- 2010-12-31 CN CN2010206936525U patent/CN201983916U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564756A (en) * | 2010-12-31 | 2012-07-11 | 中国科学院沈阳自动化研究所 | Automobile transmission vibration analysis testing method and device |
| CN103674457A (en) * | 2013-11-12 | 2014-03-26 | 陕西国力信息技术有限公司 | AMT system scanning frequency vibration endurance test method |
| CN104266749A (en) * | 2014-10-24 | 2015-01-07 | 重庆市科学技术研究院 | Device and method for offline detecting NVH (Noise Vibration and Harshness) of vehicle generator |
| CN104266749B (en) * | 2014-10-24 | 2017-08-11 | 重庆市科学技术研究院 | A kind of alternator for vehicle NVH off-line test devices and methods therefors |
| CN105675292A (en) * | 2014-11-21 | 2016-06-15 | 中国科学院沈阳自动化研究所 | Gearbox no-load test inertia loading mechanism |
| CN105675292B (en) * | 2014-11-21 | 2018-05-18 | 中国科学院沈阳自动化研究所 | A kind of gearbox no-load test inertia load maintainer |
| US11428735B1 (en) | 2019-03-14 | 2022-08-30 | Maxim Integrated Products, Inc. | System for monitoring and controlling an integrated circuit testing machine |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20161231 |