CN105181328A - Engine-gearbox integral testing device - Google Patents
Engine-gearbox integral testing device Download PDFInfo
- Publication number
- CN105181328A CN105181328A CN201510543788.5A CN201510543788A CN105181328A CN 105181328 A CN105181328 A CN 105181328A CN 201510543788 A CN201510543788 A CN 201510543788A CN 105181328 A CN105181328 A CN 105181328A
- Authority
- CN
- China
- Prior art keywords
- engine
- gearbox
- gear
- protective cover
- dynamometer machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses an engine-gearbox integral testing device, comprising an engine support and a gearbox support; the engine and the gearbox which are assembled together are arranged on the engine support and the gearbox support; the output shaft of the gearbox is in successive transmission connection with a gearbox-engine positioning fixed connection plate, an engine terminal gear plate, an elastic coupler transition connection plate, an elastic coupler, a dynamometer terminal fluted plate, a dynamometer terminal coupling flange; a protective housing for testing is positioned on the outside of the dynamometer terminal coupling flange; the protective housing for the testing corresponds to a startup gear ring position of a engine fly wheel, the normally meshing position of the input shaft gear of the gearbox input shaft gear and the gearbox output shaft and the engine terminal fluted plate; the dynamometer terminal fluted plates are respectively provided with sensor adjustment positioning devices; and the protective housing for testing is provided with a sound insulation sheet. The invention is simple in structure, reasonable in design, is an independent object and applicable to various engines, combines universality and practicability and is applicable to the promotion.
Description
Technical field
The present invention relates to a kind of vehicle transmission system Automatic System Test Unit, particularly relate to a kind of engine and whole gearbox test unit.
Background technology
Vehicle drive system test not only will test through-put power, also wants the factors such as test vibration.Vehicle drive system flexural vibrations have important impact to the generation of Vehicular vibration and noise in a wide range of frequency, rigid-body vibration in low frequency section directly affects the riding comfort of vehicle, and the elastic vibration in high-frequency section will cause mesomerism and the acoustic resonance of vehicle.Flexural vibrations are caused by the imbalance etc. of engine movements parts reciprocal inertia force, transmission shaft.Power train is bending, twisting vibration forms coupling at main reducing gear of drive axle place.This respect research only has fraction to set up optimized mathematical model.
Non-contact measurement generally adopts " survey tooth method ", namely utilizes code-disc on axle, gear or other repetitional structure, the unevenness of measured angular speed and reach the object measuring torsional oscillation.The difficulty of current torsional oscillation test is mainly manifested in following 3 aspects: (1) is high to the installation of sensor, protection and request signal transmission, and corresponding work is also complicated; (2) torsional vibration signals signal to noise ratio (S/N ratio) is very poor, adds longitudinal vibration, horizontally shakes and roll the interference of shaking, and torsional vibration signals is extracted and com-parison and analysis difficulty; (3) engine is wide in variety, power grade is many, and proving installation is difficult to realize product seriation, modularization, universalization.
Summary of the invention
The present invention be directed to the deficiency existing for prior art, and it is simple, reasonable in design to provide a kind of structure, is applicable to all kinds of engine, the engine that general and practicality combines and whole gearbox test unit.
To achieve these goals, the invention provides a kind of engine and whole gearbox test unit, comprise base, described base is provided with engine support and gear-box bracket, and the stage casing of described engine support is provided with engine snubber block, the engine fitted together and wheel box are arranged on described engine support and gear-box bracket, described output shaft of gear-box is connected with that fixed connection dish located by wheel box and engine successively, engine end fluted disc, spring coupling transition connect coil, spring coupling, dynamometer machine end-toothed disc, dynamometer machine client link flange, described engine, wheel box, fixed connection dish located by wheel box and engine, engine end fluted disc, spring coupling transition connects dish, spring coupling, dynamometer machine end-toothed disc, dynamometer machine client link flange arranged outside has test protective cover, the corresponding described engine flywheel of described test protective cover 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 is respectively provided with sensor adjustment locating device, described test protective cover is provided with sound insulation sheet, described test protective cover is positioned at dynamometer machine one end and is connected with protection cylinder.
Wherein, described sensor advancement mechanism comprises the outer ring being arranged at described test protective cover, and described outer ring is threaded for the inner sleeve of sensor installation, is provided with hold-down nut between described outer ring and inner sleeve.
Preferably, described sensor advancement mechanism and described test protective cover are welded and fixed.
Another is preferred, and described sensor advancement mechanism and described test protective cover bolt regulate fixing.
The hauling ability of vehicle and economy, depend on coordinating of diesel engine and wheel box to a great extent, this be with engine directly and the wheel box main cause that connects integrated testability instead of only use test bed testing wheel box.
The test of near field noise intensity can be used for determining the position of high vibration amplitude, and this position may can be also the source of airborne noise, by means of testing, region under a cloud should confirm that whether noise radiation is very strong, therefore completely externally sound insulation.
Kinematic train is except the twisting vibration of self, the transmission shaft flexural vibrations caused by unbalance dynamic and other additional bending moments of Engine Excitation, transmission shaft self, easily intercouple at back axle place and twisting vibration, produce coupled vibrations, the NVH level of driving after having a strong impact on, as the roar that drive shaft system rotation order causes.So increase engine end fluted disc and dynamometer machine end-toothed disc test voltage signal before and after spring coupling again.
The technical program is that engine and wheel box connect test target as a whole, adopt torsional oscillation testing apparatus, with magnetoelectric transducer, engine end fluted disc and dynamometer machine end-toothed disc is arranged again before and after spring coupling, measure this position voltage signal, the change curve that the torsion angle acceleration obtaining diverse location class by differentiating changes with engine speed, records different gear engine flywheel, transmission input shaft and output shaft angular acceleration with engine speed change curve, the original position of engine is utilized to measure fly wheel start-up gear ring, transmission input shaft gear and output shaft of gear-box constant mesh gear position voltage signal, collection signal frame mode is identical with spring coupling two ends with test protective cover sensor adjustment locating device, measure fly wheel start-up gear ring respectively, transmission input shaft gear and output shaft of gear-box constant mesh gear position voltage signal, entering differentiates obtains the change curve of torsion angle acceleration with engine speed of different gear, test draws engine flywheel under different shelves operating mode, transmission input shaft and output shaft angular acceleration are with the change curve of engine speed.
The 1 rank mode of flexural vibration frequency of drive shaft system of design is within the scope of normal revolution, and close with vehicle body 1 rank mode of flexural vibration, easily causes in car and thunders, should control emphatically its size, away from engine normal revolution scope.The rigidity of transmission shaft intermediate supports is directly related with its 1 rank mode of flexural vibration frequency, and intermediate supports rigidity is larger, and 1 rank mode of flexural vibration frequency is higher.If chronometric analysis regulates the rigidity of transmission shaft intermediate supports can regulate the model frequency of drive shaft system, make 1 rank model frequency at below 30Hz as far as possible, avoid engine normal revolution.
The beneficial effect of this programme can be learnt according to describing of such scheme, and structure is simply, reasonable in design, and be individual independently overall, be applicable to all kinds of engine, general and practicality combines, and is suitable for applying.The technical program adopts test protective cover: one can regulate front and back up and down, and playing shaft components must support and regulate centering to act on; Two can fix or regulate sensor advancement mechanism; Three can install sheet rubber acoustic construction additional by both sides.
Accompanying drawing explanation
Fig. 1 is that the present invention waits the rotation of local, axle side to cut open figure;
Fig. 2 is that explosive view is cutd open in the rotation of wheel box connecting test system of the present invention local;
Fig. 3 is that front view local angle of the present invention cuts open figure;
Fig. 4 is that wheel box connection axle series vertical view local angle of the present invention cuts open figure;
Fig. 5 is that vertical view local angle of the present invention cuts open figure;
Fig. 6 is right view of the present invention;
Fig. 7 is that the axle side local angle such as wheel box connection axle series of the present invention cut open figure;
Fig. 8 is the axle side angle degree office of the cuing open figure such as axle system of the present invention;
Fig. 9 is that the axle side angle degree such as gear-box axle system of the present invention cut open partial enlarged drawing;
In figure, 1, engine snubber block; 2, engine support; 3, gear-box bracket; 4, test protective cover; 5, sensor adjustment locating device; 6, fixed connection dish located by wheel box and engine; 7, engine end fluted disc; 8, spring coupling transition connects dish; 9, spring coupling; 10, dynamometer machine end-toothed disc; 11, sound insulation sheet; 12, wheel box; 13, engine; 14, dynamometer machine client link flange; 15, protection cylinder.
Embodiment
For the technical characterstic of this programme can be clearly demonstrated, below by embodiment, this programme is set forth.
Embodiment 1
As shown in figs 1-9, the present invention is a kind of engine and whole gearbox test unit, comprises base, and base is provided with engine support 2 and gear-box bracket 3, and the stage casing of engine support 2 is provided with engine snubber block 1, the engine 13 fitted together and wheel box 12 are arranged on engine support 2 and gear-box bracket 3, and wheel box 12 output shaft is connected with that fixed connection dish 6 located by wheel box and engine, engine end fluted disc 7, spring coupling transition connect dish 8, spring coupling 9, dynamometer machine end-toothed disc 10, dynamometer machine client link flange 14 successively, engine 13, wheel box 12, fixed connection dish 6 located by wheel box and engine, engine end fluted disc 7, spring coupling transition connects dish 8, spring coupling 9, dynamometer machine end-toothed disc 10, dynamometer machine client link flange 14 arranged outside has test protective cover 4, test protective cover 4 corresponding engine 13 fly wheel start-up gear ring position, wheel box 12 input shaft gear and wheel box 12 output shaft constant mesh gear position, engine end fluted disc 7, dynamometer machine end-toothed disc 10 is respectively provided with sensor adjustment locating device 5, test protective cover 4 is provided with sound insulation sheet 11, test protective cover 5 is positioned at dynamometer machine one end and is connected with protection cylinder 15.
Sensor advancement mechanism 5 comprises the outer ring 5.1 being arranged at test protective cover, and outer ring 5.1 is threaded for the inner sleeve 5.2 of sensor installation, is provided with hold-down nut 5.3 between outer ring 5.1 and inner sleeve 5.2.
Sensor advancement mechanism 5 and test protective cover 4 are welded and fixed.
The hauling ability of vehicle and economy, depend on coordinating of diesel engine and wheel box to a great extent, this be with engine directly and the wheel box main cause that connects integrated testability instead of only use test bed testing wheel box.
The test of near field noise intensity can be used for determining the position of high vibration amplitude, and this position may can be also the source of airborne noise, by means of testing, region under a cloud should confirm that whether noise radiation is very strong, therefore completely externally sound insulation.
Kinematic train is except the twisting vibration of self, the transmission shaft flexural vibrations caused by unbalance dynamic and other additional bending moments of Engine Excitation, transmission shaft self, easily intercouple at back axle place and twisting vibration, produce coupled vibrations, the NVH level of driving after having a strong impact on, as the roar that drive shaft system rotation order causes.So increase engine end fluted disc and dynamometer machine end-toothed disc test voltage signal before and after spring coupling again.
Embodiment 2
Difference from Example 1 is, sensor advancement mechanism regulates fixing with test with protective cover bolt, can realize moving axially along kinematic train.
The technical program is that engine and wheel box connect test target as a whole, adopt torsional oscillation testing apparatus, with magnetoelectric transducer, engine end fluted disc and dynamometer machine end-toothed disc is arranged again before and after spring coupling, measure this position voltage signal, the change curve that the torsion angle acceleration obtaining diverse location class by differentiating changes with engine speed, records different gear engine flywheel, transmission input shaft and output shaft angular acceleration with engine speed change curve, the original position of engine is utilized to measure fly wheel start-up gear ring, transmission input shaft gear and output shaft of gear-box constant mesh gear position voltage signal, collection signal frame mode is identical with spring coupling two ends with test protective cover sensor adjustment locating device, measure fly wheel start-up gear ring respectively, transmission input shaft gear and output shaft of gear-box constant mesh gear position voltage signal, entering differentiates obtains the change curve of torsion angle acceleration with engine speed of different gear, test draws engine flywheel under different shelves operating mode, transmission input shaft and output shaft angular acceleration are with the change curve of engine speed.
The 1 rank mode of flexural vibration frequency of drive shaft system of design is within the scope of normal revolution, and close with vehicle body 1 rank mode of flexural vibration, easily causes in car and thunders, should control emphatically its size, away from engine normal revolution scope.The rigidity of transmission shaft intermediate supports is directly related with its 1 rank mode of flexural vibration frequency, and intermediate supports rigidity is larger, and 1 rank mode of flexural vibration frequency is higher.If chronometric analysis regulates the rigidity of transmission shaft intermediate supports can regulate the model frequency of drive shaft system, make 1 rank model frequency at below 30Hz as far as possible, avoid engine normal revolution.
The present invention can pass through without the technical characteristic described or adopt existing techniques in realizing; do not repeat them here; certainly; above-mentioned explanation is not limitation of the present invention; the present invention is also not limited in above-mentioned citing; the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement, also should belong to protection scope of the present invention.
Claims (4)
1. engine and a whole gearbox test unit, comprise base, and described base is provided with engine support and gear-box bracket, and the stage casing of described engine support is provided with engine snubber block; The engine fitted together and wheel box are arranged on described engine support and gear-box bracket, it is characterized in that, described output shaft of gear-box is connected with that fixed connection dish located by wheel box and engine successively, engine end fluted disc, spring coupling transition connect coil, spring coupling, dynamometer machine end-toothed disc, dynamometer machine client link flange; Fixed connection dish located by described output shaft of gear-box, wheel box and engine, engine end fluted disc, spring coupling transition connect coil, spring coupling, dynamometer machine end-toothed disc, dynamometer machine client link flange arranged outside have test protective cover, the corresponding described engine end fluted disc of described test protective cover, dynamometer machine end-toothed disc are respectively provided with sensor adjustment locating device, described test protective cover is provided with sound insulation sheet, and described test protective cover is positioned at dynamometer machine one end and is connected with protection cylinder.
2. engine according to claim 1 and whole gearbox test unit, it is characterized in that, described sensor advancement mechanism comprises the outer ring being arranged at described test protective cover, described outer ring is threaded for the inner sleeve of sensor installation, is provided with hold-down nut between described outer ring and inner sleeve.
3. engine according to claim 1 and 2 and whole gearbox test unit, is characterized in that, described sensor advancement mechanism and described test protective cover are welded and fixed.
4. engine according to claim 1 and 2 and whole gearbox test unit, is characterized in that, described sensor advancement mechanism and described test protective cover bolt regulate fixing.
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 |
|---|---|
| CN105181328A true CN105181328A (en) | 2015-12-23 |
| CN105181328B CN105181328B (en) | 2017-09-05 |
Family
ID=54903569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510543788.5A Active CN105181328B (en) | 2015-08-28 | 2015-08-28 | A kind of engine and gearbox Integrated test facility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105181328B (en) |
Cited By (5)
| 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 |
| CN111521390A (en) * | 2020-05-19 | 2020-08-11 | 三一重机有限公司 | Transmission system testing method and system |
| CN112393901A (en) * | 2020-11-27 | 2021-02-23 | 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 |
| CN113670623A (en) * | 2021-08-25 | 2021-11-19 | 陕西空天动力研究院有限公司 | Test bench for starting generator of micro turbojet engine |
Citations (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 |
| 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 |
| CN104849487A (en) * | 2014-12-19 | 2015-08-19 | 北汽福田汽车股份有限公司 | To-be-detected shaft rotation speed detecting device and system |
| 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 |
-
2015
- 2015-08-28 CN CN201510543788.5A patent/CN105181328B/en active Active
Patent Citations (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 |
| CN104849487A (en) * | 2014-12-19 | 2015-08-19 | 北汽福田汽车股份有限公司 | To-be-detected shaft rotation speed detecting device 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 |
Cited By (6)
| 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 |
| CN111521390A (en) * | 2020-05-19 | 2020-08-11 | 三一重机有限公司 | Transmission system testing method and system |
| CN112393901A (en) * | 2020-11-27 | 2021-02-23 | 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 |
| 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 |
| CN113670623A (en) * | 2021-08-25 | 2021-11-19 | 陕西空天动力研究院有限公司 | Test bench for starting generator of micro turbojet engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105181328B (en) | 2017-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105181328A (en) | Engine-gearbox integral testing device | |
| CN104266749B (en) | A kind of alternator for vehicle NVH off-line test devices and methods therefors | |
| US11125649B2 (en) | Drive train test stand having a modular design for electric motor vehicle drives | |
| CN109827770A (en) | One kind being suitable for automobile gearbox gear shock loading test device and method | |
| CN103712797A (en) | Experimental device for simulating bolt-connected disk-and-drum rotor of aero-engine | |
| CN204855158U (en) | Engine and whole test device of gearbox | |
| US8820153B2 (en) | Test stand having a vibration damper | |
| CN205192671U (en) | Engine torque detection device | |
| KR100787238B1 (en) | Driveline test bench for automotive chassis system and test method using the same | |
| CN100554931C (en) | Experimental unit for dynamic strength of friction disk | |
| CN209182022U (en) | The gear train assembly beat noise test equipment of automobile power assembly | |
| JP3444163B2 (en) | Engine and drive train performance testing equipment and torque detection equipment | |
| CN102680214B (en) | Vibration isolation performance test device and method for corrugated pipe | |
| CN109282991A (en) | A kind of DCT vehicle power drive system torsional vibration measurement and system | |
| CN103776527B (en) | A kind of band carries the motor oscillating proving installation under state | |
| CN204405324U (en) | A kind of automatic transmission stabilizing test device | |
| CN109655262A (en) | The gear train assembly beat noise test equipment of automobile power assembly | |
| CN201203518Y (en) | Test stand for double-quality fly wheel circular arc spring static characteristic test | |
| CN109612743A (en) | A kind of testing tool and method of the twisting vibration of engine rear-drive automobile transmission shaft | |
| CN108303261A (en) | A kind of magneto-electric torsional vibration damper test-bed based on laser measurement technology | |
| CN205991889U (en) | The torsional oscillation test device of double mass flywheel formula torsional vibration damper | |
| CN105277369B (en) | Single rigidity of support connection diesel generating set equivalent test device and its design method | |
| RU2712937C1 (en) | Test bench for torsional vibration damper testing | |
| CN110274765B (en) | Modularized centrifugal pendulum type dynamic vibration absorber experiment table | |
| RU43072U1 (en) | STAND FOR MEASURING DYNAMIC CHARACTERISTICS OF Torsional vibration damper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
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. |