CN105181328B - A kind of engine and gearbox Integrated test facility - Google Patents
A kind of engine and gearbox Integrated test facility Download PDFInfo
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- CN105181328B CN105181328B CN201510543788.5A CN201510543788A CN105181328B CN 105181328 B CN105181328 B CN 105181328B CN 201510543788 A CN201510543788 A CN 201510543788A CN 105181328 B CN105181328 B CN 105181328B
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Abstract
The invention discloses a kind of engine and gearbox Integrated test facility, including engine support and gear-box bracket, the engine fitted together is arranged on engine support and gear-box bracket with gearbox, and output shaft of gear-box is connected with gearbox and connects disk, yielding coupling, dynamometer machine end-toothed disc, dynamometer machine client link flange with engine positioning fixed connection disk, engine end fluted disc, yielding coupling transition successively；Outside is provided with test protective cover, test starts gear ring position, transmission input shaft gear and output shaft of gear-box constant mesh gear position, engine end fluted disc, dynamometer machine end-toothed disc with protective cover correspondence engine flywheel and is each provided with sensor adjustment positioner, and test is provided with sound insulation piece with protective cover.The beneficial effect of this programme can be learnt according to the narration to such scheme, simple in construction, reasonable in design, be an independent entirety, be adapted to all kinds of engines, and general and practicality is combined, suitable popularization and application.
Description
Technical field
The present invention relates to a kind of vehicle transmission system Automatic System Test Unit, more particularly to a kind of engine and gearbox bulk testing
Device.
Background technology
Vehicle drive system test will not only test transimission power, also want the factors such as test vibration.Vehicle drive system is curved
Qu Zhendong has important influence in a wide range of frequency to Vehicular vibration and noise, the rigid body in low frequency section
Vibration directly affects the riding comfort of vehicle, and the elastic vibration in high-frequency section will cause vehicle mesomerism and
Acoustic resonance.Flexural vibrations are as caused by engine movements part reciprocal inertia force, imbalance of power transmission shaft etc..Power transmission
System's bending, twisting vibration form coupling at main reducing gear of drive axle.This respect research, which only has fraction, can set up optimization mathematics
Model.
Non-contact measurement typically using " surveying tooth method ", that is, utilizes code-disc, gear or other repetitional structures, measurement angle on axle
The inhomogeneities of speed and reach measurement torsional oscillation purpose.The difficulty of current torsional oscillation test is mainly manifested in following 3 aspects:
（1）Installation, protection and request signal transmission to sensor is high, and corresponding work is also complicated；（2）Torsional vibration signals signal to noise ratio is very
Difference, adds the interference that longitudinal vibration, lateral vibration and rolling are shaken, and extracts torsional vibration signals difficult with com-parison and analysis；（3）Engine is wide in variety,
Power grade is more, and test device is difficult to product seriation, modularization, generalization.
The content of the invention
The present invention be directed to the deficiency present in prior art, and there is provided a kind of simple in construction, reasonable in design, it is adapted to each
Class engine, the engine that general and practicality is combined and gearbox Integrated test facility.
To achieve these goals, the invention provides a kind of engine and gearbox Integrated test facility, including base,
The base is provided with engine support and gear-box bracket, and the stage casing of the engine support is provided with engine snubber block；
The engine fitted together is arranged on the engine support and gear-box bracket with gearbox, the output of the gearbox
Axle be connected with successively gearbox and engine positioning fixed connection disk, engine end fluted disc, yielding coupling transition connect disk,
Yielding coupling, dynamometer machine end-toothed disc, dynamometer machine client link flange；The engine, gearbox, gearbox and engine are positioned
Fixed connection disk, engine end fluted disc, yielding coupling transition connect disk, yielding coupling, dynamometer machine end-toothed disc, measurement of power generator terminal connection
The blue outside of connection is provided with test protective cover, the test protective cover correspondence engine flywheel start gear ring position,
The input shaft gear of gearbox and the output shaft constant mesh gear position of gearbox, engine end fluted disc, dynamometer machine end-toothed disc are each
Sensor adjustment positioner is provided with, the test is provided with sound insulation piece with protective cover, and the test is located at protective cover surveys
Work(machine one end is connected with protection cylinder.
Wherein, the sensor adjustment positioner includes being arranged at the outer ring of the test protective cover, the outer ring
The inner sleeve for install sensor is threaded with, fixing nut is provided between the outer ring and inner sleeve.
Preferably, the sensor adjustment positioner is welded and fixed with the test with protective cover.
It is another preferred, the sensor adjustment positioner and test protective cover bolt regulation fixation.
The hauling ability and economy of vehicle, depend greatly on the cooperation of diesel engine and gearbox, and this is to use
Engine is directly coupled integrated testability rather than only uses the main cause of test bed testing gearbox with gearbox.
The test of near field noise intensity may be used to determine the position of high vibration amplitude, and this position may may also be air
The source of noise, region under a cloud should confirm whether noise radiation is very strong by means of testing, therefore externally sound insulation completely.
Transmission system in addition to the twisting vibration of itself, by Engine Excitation, the unbalance dynamic of power transmission shaft itself and other
Power transmission shaft flexural vibrations caused by additional bending moment, easily intercouple at back axle with twisting vibration, produce coupled vibrations, serious shadow
The level of NVH driven after sound, the roar as caused by drive shaft system rotation order.So being further added by hair before and after yielding coupling
Motivation end-toothed disc and dynamometer machine end-toothed disc test voltage signal.
The technical program is that engine and gearbox are coupled as integrated testability target, using torsional oscillation test equipment, uses magnetic
Electric transducer, arranges engine end fluted disc and dynamometer machine end-toothed disc again before and after yielding coupling, measures the position voltage signal,
The change curve that the torsion angular acceleration of diverse location class changes with engine speed is obtained by differentiating, difference is measured
Gear engine flywheel, the input shaft of gearbox and output shaft angular acceleration are with engine speed change curve；Utilize engine
Measure the output shaft constant mesh gear position voltage of fly wheel start-up gear ring, the input shaft gear of gearbox and gearbox in original position
Signal, collection signal structure mode and test are identical with yielding coupling two ends with protective cover sensor adjustment positioner, point
Fly wheel start-up gear ring, the input shaft gear of gearbox and the output shaft constant mesh gear position voltage signal of gearbox are not measured,
Entered to differentiate the torsion angular acceleration for obtaining different gears with the change curve of engine speed, test draws different shelves works
Under condition engine flywheel, the input shaft of gearbox and output shaft angular acceleration with engine speed change curve.
1 rank mode of flexural vibration frequency of the drive shaft system of design connects in the range of normal revolution, and with the rank mode of flexural vibration of vehicle body 1
Closely, easily cause in-car to thunder, should focus on to control its size, away from engine normal revolution scope.Power transmission shaft intermediate supports it is firm
Degree is directly related with its 1 rank mode of flexural vibration frequency, and intermediate supports rigidity is bigger, and 1 rank mode of flexural vibration frequency is higher.If chronometric analysis
Regulation power transmission shaft intermediate supports rigidity can adjust the modal frequency of drive shaft system, make as far as possible 1 rank modal frequency 30 Hz with
Under, avoid engine normal revolution.
The beneficial effect of this programme can be learnt according to the narration to such scheme, simple in construction, reasonable in design, be individual independent
Entirety, be adapted to all kinds of engines, general and practicality is combined, suitable popularization and application.The technical program uses anti-using test
Shield：One front and rear up and down can be adjusted, and centering effect must be supported and adjust by playing shaft componentses；Two can fix or adjust sensing
Device adjusting means；Three can install sheet rubber sound-insulating structure additional by both sides.
Brief description of the drawings
For isometric side of the invention, locally figure is cutd open in rotation to Fig. 1；
Fig. 2 is that locally explosive view is cutd open in rotation to gearbox connecting test system of the present invention；
Fig. 3 is that front view local angle of the present invention cuts open figure；
Fig. 4 is that gearbox connection axle series top view local angle of the present invention cuts open figure；
Fig. 5 is that top view local angle of the present invention cuts open figure；
Fig. 6 is right view of the present invention；
Fig. 7 is that the isometric side local angle of gearbox connection axle series of the present invention cuts open figure；
Fig. 8 is the isometric side angle degree office of the cuing open figure of shafting of the present invention；
Fig. 9 is that the isometric side angle degree of gearbox shafting of the present invention cuts open partial enlarged drawing；
In figure, 1, engine snubber block；2nd, engine support；3rd, gear-box bracket；4th, test protective cover；5th, sensor
Regulating positioning device；6th, gearbox and engine positioning fixed connection disk；7th, engine end fluted disc；8th, yielding coupling transition connects
Disk；9th, yielding coupling；10th, dynamometer machine end-toothed disc；11st, sound insulation piece；12nd, gearbox；13rd, engine；14th, dynamometer machine client link
Flange；15th, protection cylinder.
Embodiment
For the technical characterstic for illustrating this programme can be understood, below by embodiment, this programme is illustrated.
Embodiment 1
As shown in figs 1-9, the present invention is a kind of engine and gearbox Integrated test facility, including base, and base is set
There are engine support 2 and gear-box bracket 3, the stage casing of engine support 2 is provided with engine snubber block 1；Fit together
Engine 13 is arranged on engine support 2 and gear-box bracket 3 with gearbox 12, and the output shaft of gearbox 12 is connected successively
There is gearbox to connect disk 8, yielding coupling with engine positioning fixed connection disk 6, engine end fluted disc 7, yielding coupling transition
9th, dynamometer machine end-toothed disc 10, dynamometer machine client link flange 14；Engine 13, gearbox 12, gearbox and engine positioning are fixed
Connection disk 6, engine end fluted disc 7, yielding coupling transition connect disk 8, yielding coupling 9, dynamometer machine end-toothed disc 10, measurement of power generator terminal
The outside of coupling flange 14 is provided with test protective cover 4, the test correspondence engine 13 of protective cover 4 fly wheel start-up gear ring position,
The input shaft gear of gearbox 12 and the output shaft constant mesh gear position of gearbox 12, engine end fluted disc 7, dynamometer machine end-toothed disc 10
Sensor adjustment positioner 5 is each provided with, test protective cover 4 is provided with sound insulation piece 11, and test is located at measurement of power with protective cover 5
Machine one end is connected with protection cylinder 15.
Sensor adjustment positioner 5 includes being arranged at the outer ring 5.1 of test protective cover, and outer ring 5.1 is threaded with
For the inner sleeve 5.2 of install sensor, fixing nut 5.3 is provided between outer ring 5.1 and inner sleeve 5.2.
Sensor adjustment positioner 5 is welded and fixed with test protective cover 4.
The hauling ability and economy of vehicle, depend greatly on the cooperation of diesel engine and gearbox, and this is to use
Engine is directly coupled integrated testability rather than only uses the main cause of test bed testing gearbox with gearbox.
The test of near field noise intensity may be used to determine the position of high vibration amplitude, and this position may may also be air
The source of noise, region under a cloud should confirm whether noise radiation is very strong by means of testing, therefore externally sound insulation completely.
Transmission system in addition to the twisting vibration of itself, by Engine Excitation, the unbalance dynamic of power transmission shaft itself and other
Power transmission shaft flexural vibrations caused by additional bending moment, easily intercouple at back axle with twisting vibration, produce coupled vibrations, serious shadow
The level of NVH driven after sound, the roar as caused by drive shaft system rotation order.So being further added by hair before and after yielding coupling
Motivation end-toothed disc and dynamometer machine end-toothed disc test voltage signal.
Embodiment 2
Difference from Example 1 includes, and sensor adjustment positioner is fixed with test with the regulation of protective cover bolt, energy
Enough realize moves axially along transmission system.
Difference from Example 1 also includes, and the technical program is that engine and gearbox are coupled as integrated testability mesh
Mark, using torsional oscillation test equipment, with magnetoelectric transducer, arranges engine end fluted disc and measurement of power generator terminal again before and after yielding coupling
Fluted disc, measures the position voltage signal, and the torsion angular acceleration that diverse location class is obtained by differentiating turns with engine
The change curve of speed change, measures different gear engine flywheels, the input shaft of gearbox and output shaft angular acceleration with starting
Machine rotation speed change curve；The input shaft gear and gearbox of fly wheel start-up gear ring, gearbox are measured using the original position of engine
Output shaft constant mesh gear position voltage signal, collection signal structure mode and test protective cover sensor adjustment positioning dress
Put identical with yielding coupling two ends, fly wheel start-up gear ring, the output of the input shaft gear and gearbox of gearbox are measured respectively
Axle constant mesh gear position voltage signal, the torsion angular acceleration for obtaining different gears that entered to differentiate is with engine speed
Change curve, test draws under different shelves operating modes engine flywheel, the input shaft of gearbox and output shaft angular acceleration with starting
The change curve of machine rotating speed.
1 rank mode of flexural vibration frequency of the drive shaft system of design connects in the range of normal revolution, and with the rank mode of flexural vibration of vehicle body 1
Closely, easily cause in-car to thunder, should focus on to control its size, away from engine normal revolution scope.Power transmission shaft intermediate supports it is firm
Degree is directly related with its 1 rank mode of flexural vibration frequency, and intermediate supports rigidity is bigger, and 1 rank mode of flexural vibration frequency is higher.If chronometric analysis
Regulation power transmission shaft intermediate supports rigidity can adjust the modal frequency of drive shaft system, make as far as possible 1 rank modal frequency 30 Hz with
Under, avoid engine normal revolution.
Technical characteristic of the invention without description can be realized by or using prior art, will not be repeated here, certainly,
Described above is not limitation of the present invention, and the present invention is also not limited to the example above, the ordinary skill of the art
The variations, modifications, additions or substitutions that personnel are made in the essential scope of the present invention, should also belong to the protection model of the present invention
Enclose.
Claims (3)
1. a kind of engine and gearbox Integrated test facility, including base, the base are provided with engine support and speed change
Box bracket, the stage casing of the engine support is provided with engine snubber block；The engine fitted together is set with gearbox
On the engine support and gear-box bracket, it is characterised in that the output shaft of the gearbox is connected with change successively
Fast case connects disk, yielding coupling, dynamometer machine with engine positioning fixed connection disk, engine end fluted disc, yielding coupling transition
End-toothed disc, dynamometer machine client link flange；Output shaft, gearbox and the engine of the gearbox position fixed connection disk, started
Generator terminal fluted disc, yielding coupling transition connect disk, yielding coupling, dynamometer machine end-toothed disc, the setting of dynamometer machine client link flange outside
Have a test protective cover, test protective cover correspondence fly wheel start-up gear ring position, the input shaft gear of the gearbox and
The output shaft constant mesh gear position of gearbox, engine end fluted disc, dynamometer machine end-toothed disc are each provided with sensor adjustment positioning
Device, the test is provided with sound insulation piece with protective cover, and the test is connected with protection cylinder with protective cover positioned at dynamometer machine one end；
The sensor adjustment positioner includes being arranged at the outer ring of the test protective cover, and the outer ring, which is threaded with, to be used for
The inner sleeve of install sensor, fixing nut is provided between the outer ring and inner sleeve.
2. engine according to claim 1 and gearbox Integrated test facility, it is characterised in that the sensor adjustment
Positioner is welded and fixed with the test with protective cover.
3. engine according to claim 1 and gearbox Integrated test facility, it is characterised in that the sensor adjustment
Positioner is fixed with the test with the regulation of protective cover bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510543788.5A CN105181328B (en) | 2015-08-28 | 2015-08-28 | A kind of engine and gearbox Integrated test facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510543788.5A CN105181328B (en) | 2015-08-28 | 2015-08-28 | A kind of engine and gearbox Integrated test facility |
Publications (2)
| Publication Number | Publication Date |
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| CN105181328A CN105181328A (en) | 2015-12-23 |
| CN105181328B true CN105181328B (en) | 2017-09-05 |
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| CN201510543788.5A Active CN105181328B (en) | 2015-08-28 | 2015-08-28 | A kind of engine and gearbox Integrated test facility |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106839A (en) * | 2017-12-11 | 2018-06-01 | 安徽双骏智能科技有限公司 | A kind of industrial robot speed reducer reliability test bench |
| CN109521363A (en) * | 2018-11-19 | 2019-03-26 | 东北林业大学 | Adapt to the fixation device and test macro of different size motors |
| CN111521390B (en) * | 2020-05-19 | 2022-01-21 | 三一重机有限公司 | Transmission system testing method and system |
| CN112393901B (en) * | 2020-11-27 | 2022-09-16 | 马鞍山市龙腾机电科技有限公司 | Gearbox shell performance detection equipment and detection method for stereoscopic parking space |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01174930A (en) * | 1987-12-29 | 1989-07-11 | Honda Motor Co Ltd | Engine testing apparatus |
| CN201897598U (en) * | 2010-11-06 | 2011-07-13 | 奇瑞汽车股份有限公司 | Fixing device of gearbox shaft speed sensor |
| CN104165773A (en) * | 2014-08-18 | 2014-11-26 | 南通常测机电股份有限公司 | Hybrid power assembly test bed |
| CN104849487B (en) * | 2014-12-19 | 2018-08-07 | 北汽福田汽车股份有限公司 | Shaft rotation speed detector to be measured and system |
| CN204495562U (en) * | 2015-02-28 | 2015-07-22 | 中国重汽集团济南动力有限公司 | Power taking test unit after a kind of engine |
| CN204855158U (en) * | 2015-08-28 | 2015-12-09 | 中国重汽集团济南动力有限公司 | Engine and whole test device of gearbox |
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Effective date of registration: 20200401 Address after: 311232 red six farm south road, Xiaoshan District, Zhejiang, Hangzhou Patentee after: CHINA NATIONAL HEAVY DUTY TRUCK GROUP HANGZHOU ENGINE Co.,Ltd. Address before: 250200 Shandong city of Ji'nan province Zhangqiu City Sheng Jing Tang Shan Lu Bei Lu Xi Pan Wang Patentee before: SINO TRUK JINAN POWER Co.,Ltd. |
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