CN103308036B - Standard centering device, engine test trolley and standard centering method - Google Patents
Standard centering device, engine test trolley and standard centering method Download PDFInfo
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- CN103308036B CN103308036B CN201210071320.7A CN201210071320A CN103308036B CN 103308036 B CN103308036 B CN 103308036B CN 201210071320 A CN201210071320 A CN 201210071320A CN 103308036 B CN103308036 B CN 103308036B
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Abstract
The invention provides a standard centering device, an engine test trolley and a standard centering method. The standard centering device comprises a first simulative dynamometer, a second simulative dynamometer, a locating retaining frame, a locating connecting plate and a locating bottom plate, wherein the first simulative dynamometer is fixed on the standard centering device through locating pins and bolts and defines a reference height; the second simulative dynamometer is connected with a bottom plate locating pin of the standard centering device through the locating pins and can be dismounted from the standard centering device; a laser shaft alignment instrument is mounted between the first simulative dynamometer and the second simulative dynamometer; the locating retaining frame is used for supporting the standard centering device and locating the standard centering device so that the standard centering device forms an entirety capable of moving as a whole; and the locating connecting plate is connected with the second simulative dynamometer and the locating bottom plate.
Description
Technical field
The present invention relates to engine development test, particularly relate to the right alignment of the axle system between engine and dynamometer machine.
Background technology
The engine rig test room type of the general automobile factory of China, agricultural machinery factory, Engine Research Institute is varied.In engine early development bench test, believe that a lot of auto vendor and engine producer all can run into various kinematic train problem, analyze its reason, most have relation with the right alignment of kinematic train.Namely, right alignment installation accuracy between engine and dynamometer machine is not high, engine pedestal consistance and interchangeability poor, and be all carry out rotating shaft centering with ruler or dial gauge, therefore, precision is general lower, substantially in 4mils (1/10mm) to 0.4mils (1/100mm) this magnitude.This all greatly have impact on the accuracy rate of case study in engine development process of the test and test efficiency and other problem served by band, such as, project cannot complete in time, the Frequent Troubles of engine and measurement of power arbor system (such as, bearing damage, drive shafts fracture), high test cost, etc.
Summary of the invention
In order to solve in engine development test, accuracy of alignment is low, test efficiency is poor and the problem such as the Frequent Troubles of engine and measurement of power arbor system (main manifestations is bearing damage and drive shafts fracture), the invention provides a kind of in engine development test, for the technical scheme of the precise positioning of test-bed drive shaft system centering and engine test car, and obtain the checking of test, solve the difficult problem in engine development test and improve quality and the efficiency of development experiments process greatly.
In one embodiment, the invention provides a kind of standard centralising device, it is characterized in that, described standard centralising device comprises:
First simulation dynamometer machine, described first simulation dynamometer machine is by register pin and to be bolted on described standard centralising device and definition datum height;
Second simulation dynamometer machine, described second simulation dynamometer machine is connected by the base plate register pin of register pin with described standard centralising device, described second simulation dynamometer machine can be dismantled from described centralising device, installs laser alignment instrument between described first simulation dynamometer machine and described second simulation dynamometer machine;
Locating retainer, described locating retainer makes it to become the entirety that can move integrally for supporting and locating described standard centralising device, and makes do not have relative displacement between each assembly of described standard centralising device;
Be located by connecting plate, connects described second simulation dynamometer machine and positioning plate; And
Described positioning plate.
Further, described second simulation dynamometer machine, by after described laser alignment instrument centering, is moved at least one dynamometer machine place in laboratory, for the centering benchmark as at least one dynamometer machine described.Described first simulation dynamometer machine is used for the centering benchmark as engine test car.
In one embodiment, the invention provides a kind of engine test car, it is characterized in that, there is bottom described engine test car the dowel hole of four band taper guiding, be positioned on the positioning plate of foregoing standard centralising device by four register pins, an adjustable engine angle up and down described engine test car is also equipped with, for completing engine centering demand.Wherein, described engine test car is remained within 0.1mm by the first simulation dynamometer machine in foregoing standard centralising device and the second error simulating the right alignment of at least one dynamometer machine in dynamometer machine and laboratory.
In one embodiment, the invention provides the standard centering method of a kind of engine and dynamometer machine, it is characterized in that, comprising:
First simulation dynamometer machine and the second simulation dynamometer machine are provided;
Calibrate is carried out to described first simulation dynamometer machine and described second simulation dynamometer machine;
The after centering second simulation dynamometer machine is utilized to carry out calibrate and location at least one dynamometer machine; And
The described first simulation dynamometer machine after centering is utilized to carry out calibrate and location to engine test car.
Further, the calibrate step of described first simulation dynamometer machine and described second simulation dynamometer machine is carried out in standard centralising device, after the calibrate of described first simulation dynamometer machine and described second simulation dynamometer machine, described second simulation dynamometer machine device is disassembled at least one the dynamometer machine place described moved in laboratory, carries out calibrate and location at least one dynamometer machine described.The center alignment procedures that described engine test car and described first simulates dynamometer machine is carried out in described standard centralising device.
According to technical scheme of the present invention, accuracy of alignment grade has risen to 0.004 (1/1000mm) from 0.4mils (1/10mm).In addition, engine test car of the present invention and standard centralising device improve the installation effectiveness of test, and meanwhile, engine dolly can accurately be located, and can keep high accuracy of alignment while of can exchanging between different tests stand.
Accompanying drawing explanation
Fig. 1 illustrates the kinematic train in engine rig test;
Fig. 2 illustrates the standard centralising device according to one embodiment of the invention;
Fig. 3 to carry out the schematic diagram of centering for the centering benchmark that utilizes standard centralising device of the present invention and provide to dynamometer machine;
Fig. 4 illustrates that engine is adjusted by the center of standard centralising device with simulation dynamometer machine on test cart;
Fig. 5 to carry out the schematic diagram of centering for the centering benchmark that utilizes standard centralising device of the present invention and provide to engine;
Fig. 6 A, Fig. 6 B, Fig. 6 C are respectively the vertical view of the simulation dynamometer machine according to one embodiment of the invention, front elevation and right view;
Fig. 7 A and Fig. 7 B is the centering report of two the test-bed engines adopting technical scheme of the present invention; And
Fig. 8, Fig. 9, Figure 10 illustrate the vertical view of the coordinated scheme of engine test car base plate and stand base plate, front elevation and right view respectively.
Description of reference numerals
1 crankshaft belt pulley
2 engines
3 double mass flywheels
4 clutch shaft bearing body assemblies
5 universal joints
6 second bearing body assemblies
7 dynamometer machines
21 first simulation dynamometer machines
22 second simulation dynamometer machines
23 locating retainers
24 are located by connecting plate
25 positioning plates
10 locating devices
20 dolly woollen goods base angles
A part for 30 engine dollies
40 stand base plates
50 locking devices
Embodiment
Engine early development bench test is very important.Fig. 1 shows the kinematic train in engine rig test.This kinematic train comprises crankshaft belt pulley 1, engine 2, double mass flywheel 3, clutch shaft bearing body assembly 4, universal joint 5, second bearing body assembly 6, dynamometer machine 7 successively.The right alignment of the axle system that involved in the present invention is between engine 2 and dynamometer machine 7.Technical scheme of the present invention can be applicable to the kinematic train shown in Fig. 1.
Fig. 2 illustrates the standard centralising device according to one embodiment of the invention.This standard centralising device for provide engine dolly and dynamometer machine to Plays.In one embodiment, this standard centralising device is standard laser centering station.This standard centralising device comprises the first simulation dynamometer machine 21, second simulation dynamometer machine 22, locating retainer 23, be located by connecting plate 24 and positioning plate 25.
Wherein, the second simulation dynamometer machine 22, locating retainer 23, be located by connecting plate 24 and positioning plate 25 are connected to each other, and are formed overall.The plate 24 that is located by connecting connects the second simulation dynamometer machine 22 and positioning plate 25.Locating retainer 23 for support and localization criteria centralising device makes it to become the entirety that can move integrally, and makes do not have relative displacement between each assembly of standard centralising device.Be a massive plate bottom standard centralising device, this first simulation dynamometer machine 21 and the second simulation dynamometer machine 22 are arranged on this flat board.First simulation dynamometer machine 21 is by register pin and to be bolted on standard centralising device and definition datum height.Second simulation dynamometer machine 22 is connected with base plate register pin by register pin.Between the first simulation dynamometer machine 21 and the second simulation dynamometer machine 22, the laser alignment instrument of line following pattern can be arranged on to calibrate both centers.After calibration, register pin can be made and remove the second simulation dynamometer machine 22, locating retainer 23 and plate 24 that is located by connecting.In one embodiment, dynamometer machine 22 is highly completely the same can exchange for first simulation dynamometer machine 21 and the second simulation, error, at 0.001mm, can dismantle multiple dynamometer machine 1-n places of testing laboratory at any time, for the change in location that dynamometer machine causes due to reasons such as maintenance upgradings.In one embodiment, the output shaft of the first simulation dynamometer machine and the second simulation dynamometer machine can freely rotate, and two ends are furnished with bearing.
Fig. 3 to carry out the schematic diagram of centering for the centering benchmark that utilizes standard centralising device of the present invention and provide to dynamometer machine.First, the second simulation dynamometer machine 2 shown in Fig. 3 completes the calibrate simulating dynamometer machine 21 with first by the standard centralising device shown in Fig. 2.Then, the second simulation dynamometer machine 22, for calibrating dynamometer machine 1-n, makes these dynamometer machines and standard analog dynamometer machine 21 set up position relationship.Particularly, the second simulation dynamometer machine 22 is movable to testing laboratory, such as, at least one dynamometer machine on the test-bed in laboratory, dynamometer machine 1, carries out calibrate and locates.Equally, the second simulation dynamometer machine 22 also can carry out calibrate to the dynamometer machine on other test-bed and locate that (dynamometer machine 2 to the dynamometer machine such as, in Fig. 3 n).Thus, the relation between standard centralising device and stand is set up, makes engine dolly can exchange between all stands and ensure high-precision coaxial degree.
Fig. 4 illustrates that the calibration that engine simulates dynamometer machine by standard centralising device and first on test cart is located.Particularly, the circular dowel hole led with taper with 4 bottom engine test car, is accurately positioned on base plate by these 4 register pins.A throttleable motor angle up and down engine test car is equipped with, for completing engine centering demand.Engine can free adjustment realizes simulating with first dynamometer machine up and down center be adjusted by laser alignment instrument on test cart.
Fig. 5 to carry out the schematic diagram of centering for the centering benchmark that utilizes standard centralising device of the present invention and provide to engine.After dynamometer machine calibration center simulated by engine dolly and first, engine dolly moves in testing laboratory, test with the dynamometer machine 1-n in testing laboratory, wherein, these dynamometer machines 1-n can be the dynamometer machine 1-n after utilizing the scheme of Fig. 2 and Fig. 3 of the present invention to calibrate.Engine test car arbitrarily can switch to standard centralising device and any testing laboratory, and keep right alignment completely the same and error within 0.1mm.
By above-mentioned described mode, the standard centralising device of utilization makes engine dolly and all test-beds establish consistent centering relation, as long as complete precise alignment on standard centralising device, result is equally applicable to other any test-beds and between all test-beds, engine test car can realize exchanging, and without the need to centering again, thus not only increases accuracy of alignment, and substantially increase test efficiency, reduce the rate of breakdown of engine and measurement of power arbor system.
Fig. 6 A, Fig. 6 B, Fig. 6 C are the vertical view of simulation dynamometer machine according to one embodiment of the invention, front elevation and right view.Wherein, be two bearing guards in cylinder, fitted bearing is installed coaxial, and the parallelism error of axle and axis, bottom surface is no more than 0.1mm.In a preferred embodiment, the material of simulation dynamometer machine is carbon steel, needs Ageing Treatment.First simulation dynamometer machine 21 and the second simulation dynamometer machine 22 all can adopt illustrated scheme.
Fig. 7 A and Fig. 7 B is the centering report of two the test-bed engines adopting technical scheme of the present invention.As can be seen from Fig. 7 A and Fig. 7 B, engine, entering test-bed result still after standard centralising device centering very remarkably, is the effect that engine resiliency supported also can reach pure rigid support in time.
Fig. 8, Fig. 9, Figure 10 illustrate the coordinated scheme of engine test car base plate and stand base plate.In above-mentioned figure, engine and the locating device between dolly and stand base plate 10 accurately can be located and be with the conical surface to lead.The setting height(from bottom) at engine dolly woollen goods base angle 20 is between the part 30 and stand base plate 40 of engine dolly.When carriage parking in dolly dismounting group time, ensure that a part 30 for engine dolly does not contact with ground, when engine enters test-bed time, can soar and not contact with ground in engine dolly woollen goods base angle 20.The part 30 of engine dolly is with precision pins hole through the forever indeformable corrosion resistant plate of special thermal treatment.Stand base plate 40 is for being arranged on the forever indeformable corrosion resistant plate through special thermal treatment on test-bed with precision pins plate.Reference numeral 50 in Fig. 9 is the locking devices after engine dolly enters stand.Certainly, above-mentioned design is only a preferred embodiment of the present invention, and the present invention is also only not limited thereto embodiment.
In one embodiment, present invention also offers the standard centering method of a kind of engine and dynamometer machine, comprising: the first simulation dynamometer machine and the second simulation dynamometer machine are provided; Calibrate is carried out to described first simulation dynamometer machine and described second simulation dynamometer machine; The after centering second simulation dynamometer machine is utilized to carry out calibrate and location at least one dynamometer machine; And utilize the described first simulation dynamometer machine after centering to carry out calibrate and location to engine test car.
Further, the calibrate step of the first simulation dynamometer machine and the second simulation dynamometer machine is carried out in standard centralising device, after the calibrate of the first simulation dynamometer machine and the second simulation dynamometer machine, second simulation dynamometer machine device is disassembled at least one the dynamometer machine place moved in laboratory, carries out calibrate and location at least one dynamometer machine.The center alignment procedures that engine test car and first simulates dynamometer machine is carried out in standard centralising device.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, and be not used as limitation of the invention, as long as in spirit of the present invention, the change of the above embodiment, modification all will be dropped in the scope of claims of the present invention.
Claims (9)
1. a standard centralising device, is characterized in that, described standard centralising device provides the centering benchmark of engine and dynamometer machine, comprising:
First simulation dynamometer machine, described first simulation dynamometer machine is by register pin and to be bolted on described standard centralising device and definition datum height;
Second simulation dynamometer machine, described second simulation dynamometer machine is connected by the base plate register pin of register pin with described standard centralising device, described second simulation dynamometer machine from described standard centralising device dismounting, can install laser alignment instrument between described first simulation dynamometer machine and described second simulation dynamometer machine;
Locating retainer, described locating retainer makes it to become the entirety that can move integrally for supporting and locating described standard centralising device, and makes do not have relative displacement between each assembly of described standard centralising device;
Be located by connecting plate, described in the plate that is located by connecting connect described second simulation dynamometer machine and positioning plate; And
Described positioning plate.
2. standard centralising device as claimed in claim 1, it is characterized in that, after described second simulation dynamometer machine simulates dynamometer machine centering by described laser alignment instrument and described first, be moved at least one dynamometer machine place in laboratory, for the centering benchmark as at least one dynamometer machine described.
3. standard centralising device as claimed in claim 1, is characterized in that, described first simulation dynamometer machine is used for the centering benchmark as engine test car.
4. standard centralising device as claimed in claim 1, it is characterized in that, the height error of described first simulation dynamometer machine and described second simulation dynamometer machine is about 0.001mm, and interchangeable and detachable, and the two ends of described first simulation dynamometer machine and described second simulation dynamometer machine are furnished with bearing.
5. an engine test car, it is characterized in that, there is bottom described engine test car the dowel hole of four band taper guiding, be positioned on the positioning plate of standard centralising device as claimed in claim 1 by four register pins, a throttleable motor angle up and down described engine test car is also equipped with, for the centering completing engine.
6. engine test car as claimed in claim 5, it is characterized in that, described engine test car, by the first simulation dynamometer machine in standard centralising device as claimed in claim 1 and the second simulation dynamometer machine, remains within 0.1mm with the error of the right alignment of at least one dynamometer machine in laboratory.
7. a centering method for engine and dynamometer machine, this centering method uses standard centralising device as claimed in claim 1, it is characterized in that, comprising:
First simulation dynamometer machine and the second simulation dynamometer machine are provided;
Calibrate is carried out to described first simulation dynamometer machine and described second simulation dynamometer machine;
The after centering second simulation dynamometer machine is utilized to carry out calibrate and location at least one dynamometer machine; And
The described first simulation dynamometer machine after centering is utilized to carry out calibrate and location to engine test car.
8. method as claimed in claim 7, it is characterized in that, the calibrate step of described first simulation dynamometer machine and described second simulation dynamometer machine is carried out in standard centralising device, after the calibrate of described first simulation dynamometer machine and described second simulation dynamometer machine, described second simulation dynamometer machine device is disassembled at least one the dynamometer machine place described moved in laboratory, carries out calibrate and location at least one dynamometer machine described.
9. method as claimed in claim 8, is characterized in that, the calibrate that described first simulation dynamometer machine carries out engine test car and positioning step carry out in described standard centralising device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210071320.7A CN103308036B (en) | 2012-03-16 | 2012-03-16 | Standard centering device, engine test trolley and standard centering method |
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| CN201210071320.7A CN103308036B (en) | 2012-03-16 | 2012-03-16 | Standard centering device, engine test trolley and standard centering method |
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| CN103308036A CN103308036A (en) | 2013-09-18 |
| CN103308036B true CN103308036B (en) | 2015-06-17 |
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| CN107991099A (en) * | 2017-12-29 | 2018-05-04 | 天津大学 | Engine and dynamometer machine centering device |
| CN109238723A (en) * | 2018-10-12 | 2019-01-18 | 无锡威孚高科技集团股份有限公司 | A kind of engine quick centering device |
| CN111766071A (en) * | 2020-06-30 | 2020-10-13 | 东风商用车有限公司 | Pre-centering device and using method thereof |
| CN111766070B (en) * | 2020-06-30 | 2021-06-08 | 东风商用车有限公司 | Engine pre-centering device applied outside test room and application method thereof |
| CN112179658B (en) * | 2020-07-29 | 2023-01-24 | 东风商用车有限公司 | Engine test pre-centering method |
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Address after: Anting Jiading District Town, Shanghai City Road No. 123 in 201805 Patentee after: SAIC VOLKSWAGEN AUTOMOTIVE COMPANY LIMITED Address before: 201805 No. 63, Luopu Road, Jiading District, Shanghai, Anting Patentee before: Dazhang Automobile Co., Ltd., Shanghai |