CN104048788A - Turboshaft engine start torque measurement device - Google Patents
Turboshaft engine start torque measurement device Download PDFInfo
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- CN104048788A CN104048788A CN201410282804.5A CN201410282804A CN104048788A CN 104048788 A CN104048788 A CN 104048788A CN 201410282804 A CN201410282804 A CN 201410282804A CN 104048788 A CN104048788 A CN 104048788A
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- turboshaft engine
- torque measurement
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- 238000005259 measurement Methods 0.000 title claims abstract description 30
- 239000007858 starting material Substances 0.000 claims abstract description 43
- 230000008878 coupling Effects 0.000 claims description 22
- 238000010168 coupling process Methods 0.000 claims description 22
- 238000005859 coupling reaction Methods 0.000 claims description 22
- 230000007246 mechanism Effects 0.000 claims description 21
- 238000009434 installation Methods 0.000 abstract description 7
- 238000000691 measurement method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
The invention discloses a turboshaft engine start torque measurement device. The turboshaft engine start torque measurement device comprises a torque sensor, a first installation base and a second installation base. The torque sensor comprises a first torsion disc, a second torsion disc and a linkage shaft. The first torsion disc and the second torsion disc are oppositely connected in a rotatable mode. The linkage shaft penetrates through the axis position of the first torsion disc and the axis position of the second torsion disc. One end of the linkage shaft is provided with a first connector connected with an input shaft of an engine. The other end of the linkage shaft is provided with a second connector connected with an output shaft of a starter. The head end of the first installation base is connected with a shell of the engine. The tail end of the first installation base is connected to the first torsion disc. The head end of the second installation base is connected with a shell of the starter. The tail end of the second installation base is connected to the second torsion disc. According to the turboshaft engine start torque measurement device, the start torque of the starter is obtained according to an indirect measurement method, and the problems of vibration, high difficulty and safety risks which are easily caused when the output shaft of the starter is directly measured are solved. The structure is simple, and accuracy is high.
Description
Technical field
The present invention relates to turboshaft engine field tests, especially, relate to a kind of turboshaft engine starting torque measurement mechanism.
Background technology
In engine technology design test, starting torque is measured test for must make project, starter output torque under each rotating speed when measuring engine start.Check the starting situation of engine under prescribed torque condition, for determining that starter inlet air pressure provides foundation.Turboshaft engine compact conformation, installing space is narrow and small, and rotating speed is high in addition, easily causes vibration, therefore adopts the method for directly measuring starter torque transmission shaft, and difficulty is quite large, and has very safe Risks.Therefore turboshaft engine is not generally carried out to starting torque and measure test, only obtained related data by theory calculating.The pertinency factor that the theory of starting torque is calculated is a lot, mostly obtains by experience, and the error of a factor will cause final calculation result to have larger error, so accuracy is low.
Summary of the invention
The object of the invention is to provide a kind of turboshaft engine starting torque measurement mechanism, calculates the low technical matters of turboshaft engine moment of torsion accuracy to solve by theory.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of turboshaft engine starting torque measurement mechanism, comprising:
Torque sensor, torque sensor comprises the first reverse plate, the second reverse plate and coupling spindle; The rotating involutory connection of the first reverse plate and the second reverse plate, coupling spindle is arranged in the shaft core position of the first reverse plate and the shaft core position of the second reverse plate, coupling spindle one end is provided with the first connector of connecting engine input shaft, and the other end is provided with the second connector that connects starter output shaft.
The first mount pad, the head end connecting engine housing of the first mount pad, tail end is connected in the first reverse plate.
The second mount pad, the head end of the second mount pad connects starter housing, and tail end is connected in the second reverse plate.
Preferably, the first mount pad and the second mount pad are circular ring structure, and the head end of the first mount pad radially extension forms the first web joint, and the head end of the second mount pad radially extension forms the second web joint, and the first web joint and the second web joint are equipped with screw.
Preferably, screw is uniformly distributed on the first web joint and the second web joint.
Preferably, the interior edge of the end face of the first web joint extends to form the first location-plate vertically.
Preferably, the first connector and the second connector are spline structure.
Preferably, coupling spindle is also provided with two seal grooves, and one of them seal groove is near the first connector, and another seal groove is near the second connector.
Preferably, coupling spindle is provided with protection cross section.
Preferably, the first mount pad is connected with the first reverse plate by securing member, and the second mount pad is connected with the second reverse plate by another securing member.
The present invention has following beneficial effect: the first reverse plate of torque sensor is connected with motor body by the first mount pad, and the second reverse plate is connected with starter housing by the second mount pad.The reactive torque of measuring starter housing by torque sensor obtains moment of torsion data, thereby obtains the starting torque of starter, compares the data value of obtaining by theory calculating, and accuracy is higher.Above-mentioned turboshaft engine starting torque measurement mechanism adopts the method for indirectly measuring to obtain the starting torque of starter, has avoided direct measurement starter output shaft easily to cause vibration, and difficulty is large, has the problem of security risk.Above-mentioned turboshaft engine starting torque measurement mechanism is simple in structure, accuracy is high.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the turboshaft engine starting torque measurement mechanism of the preferred embodiment of the present invention;
Fig. 2 is the cross-sectional view of the turboshaft engine starting torque measurement mechanism of the preferred embodiment of the present invention;
Fig. 3 is the structural representation of the first mount pad of the preferred embodiment of the present invention;
Fig. 4 is the structural representation of the second mount pad of the preferred embodiment of the present invention;
Fig. 5 is the structural representation of the coupling spindle of the preferred embodiment of the present invention;
Fig. 6 is the torque measurement result figure of the turboshaft engine starting torque measurement mechanism of the preferred embodiment of the present invention.
Description of reference numerals: 100, torque sensor; 120, the first reverse plate; 140, the second reverse plate; 160, coupling spindle; 162, the first connector; 164, the second connector; 180, seal groove; 200, the first mount pad; 220, the first web joint; 240, the first location-plate; 300, the second mount pad; 320, the second web joint.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, a kind of turboshaft engine starting torque measurement mechanism, comprising:
Torque sensor 100, torque sensor 100 comprises the first reverse plate 120, the second reverse plate 140 and coupling spindle 160; The first reverse plate 120 and the rotating involutory connection of the second reverse plate 140, coupling spindle 160 is arranged in the shaft core position of the first reverse plate 120 and the shaft core position of the second reverse plate 140, coupling spindle 160 one end are provided with the first connector 162 of connecting engine input shaft, and the other end is provided with the second connector 164 that connects starter output shaft.
The head end connecting engine housing of the first mount pad 200, the first mount pads 200, tail end is connected in the first reverse plate 120.
The head end of the second mount pad 300, the second mount pads 300 connects starter housing, and tail end is connected in the second reverse plate 140.
The mounting edge of motor body is connected with the first mount pad 200, can adopt the mode of flexible connection, as be spirally connected, also can adopt the mode being fixedly connected with, as welding, riveted joint etc., as long as meet motor body and the first mount pad 200 stable connections, can not relatively move.
Same, the mounting edge of starter housing is connected with the second mount pad 300, can adopt the mode of flexible connection, as be spirally connected, and also can adopt the mode being fixedly connected with, as welding, riveted joint etc.
Coupling spindle 160 is positioned at the axle center of the first reverse plate 120 and the second reverse plate 140, one end is connected in engine input shaft, the other end is connected in starter output shaft, and the first reverse plate 120 connecting engine housings, the second reverse plate 140 connects starter housing, can ensure voluntarily the right alignment requirement of starter output shaft and engine input shaft, without adjusting separately, also without engine and starter are made any change.
The first reverse plate 120 of torque sensor 100 is connected with motor body by the first mount pad 200, and the second reverse plate 140 is connected with starter housing by the second mount pad 300.The reactive torque of measuring starter housing by torque sensor 100 obtains moment of torsion data, thereby obtains the starting torque of starter, compares the data value of obtaining by theory calculating, and accuracy is higher.Above-mentioned turboshaft engine starting torque measurement mechanism adopts the method for indirectly measuring to obtain the starting torque of starter, has avoided direct measurement starter input shaft easily to cause vibration, and difficulty is large, has the problem of security risk.Above-mentioned turboshaft engine starting torque measurement mechanism is simple in structure, accuracy is high.
Preferably, with reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the first mount pad 200 and the second mount pad 300 are circular ring structure, the head end of the first mount pad 200 radially extension forms the first web joint 220, the head end of the second mount pad 300 radially extension forms the second web joint 320, the first web joints 220 and the second web joint 320 is equipped with screw.
The first web joint 220 has increased the contact area between the first mount pad 200 and motor body, makes between the two in conjunction with more firm, and the end face of the first web joint 220 is smooth, makes the first mount pad 200 and motor body laminating more tight, is convenient to install.Same, the second web joint 320 has increased the contact area between the second mount pad 300 and starter housing, makes between the two in conjunction with more firm, and the end face of the second web joint 320 is smooth, make the first mount pad 200 and starter housing laminating more tight, be convenient to install.Be connected by screw and bolt, simple in structure, be convenient to installation and removal, be convenient to daily servicing and maintenance.
Preferably, with reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, screw is uniformly distributed on the first web joint 220 and the second web joint 320.Screw be uniformly distributed can make the first web joint 220 and the second web joint 320 stressed evenly, also more firm with the combination of motor body and starter housing.
Preferably, see figures.1.and.2, the interior edge of the end face of the first web joint 220 extends to form the first location-plate 240 vertically.The first location-plate 240 can be the interior ring texture along arranging along the end face of the first web joint 220, can be also the ring texture of the projection composition of multiple discontinuous arrangements.Engine end can be goed deep in cavity that the first location-plate 240 and the first web joint 220 surround, and the first location-plate 240 is convexly set in outside the first web joint 220, and limiting engine generation radial displacement ensures that the input shaft of engine is positioned at shaft core position.
Preferably, with reference to Fig. 1, Fig. 2 and Fig. 5, the first connector 162 and the second connector 164 are spline structure.Spline structure can make the combination of combination, the second connector 164 and starter output shaft of the first connector 162 and engine input shaft more firm.
Preferably, with reference to Fig. 1, Fig. 2 and Fig. 5, coupling spindle 160 is also provided with two seal grooves 180, and one of them seal groove 180 is near the first connector 162, and another seal groove 180 is near the second connector 164.In seal groove 180, store lubricating oil, lubricating oil flow to the first connector 162 and the second connector 164 along coupling spindle 160, plays effect lubricated and protection the first connector 162 and the second connector 164, strengthens its serviceable life.
Preferably, coupling spindle 160 is provided with protection cross section.Can protect by off-axis super turning round in situation, to protect engine and starter injury-free.
Preferably, the first mount pad 200 is connected with the first reverse plate 120 by securing member, and the second mount pad 300 is connected with the second reverse plate 140 by securing member.
Embodiment
The nonrotational disc type sensor of TB1A type that torque sensor 100 adopts German HBM company to produce, adopts strain indirectly to measure moment of torsion, and range is 0-100Nm, accuracy class 0.05.
Coupling spindle 160 is solid shaft, adopts 40CrNiMoA to manufacture.The same primitive axis of coupling spindle 160 two ends spline size, because installed the first mount pad 200, the second mount pad 300 and torque sensor 100 additional between starter and engine, coupling spindle 160 overall lengths have increased 54mm compared with primitive axis.
Starter is air turbine starter, and pneumatically drives.Be a pneumatic control valve for the priming valve of controlling starting air, pneumatically drives cylinder, then drives valve core rotation to realize starting, and the opening time can be controlled in 0.5S-3S.Valve opening time is relatively short, and line pressure exists sudden change, and pressurized air has certain impact to starter, causes moment of torsion in accelerator to have sharply rise phenomenon, and there is some difference for leading portion torque value and required value.Can reduce impact by adjusting valve opening speed, but valve opening will affect the starting time too slowly, and can only consider two aspect factor compromises and consider, the opening time is controlled at 1.5S left and right.
After torque sensor 100 is installed on engine, offside is turned round dish and has been carried out energising inspection, and data communication is normal.For guaranteeing experimental safe, on starter, install vibration measuring point additional.
In process of the test, respectively air starter intake pressure is adjusted to 0.24MPa, 0.25MPa, 0.26MPa has carried out blowdown firing 3 times.And recording the output torque of air starter different rotating speed under above-mentioned intake pressure, concrete testing result is shown in Fig. 6.
From Fig. 6, can find out, at 0.24MPa, 0.25MPa, under the intake pressure of 0.26MPa, the distribution trend of the output torque of air starter is consistent with the distribution trend of maximum permissible torque and minimum essential requirement moment of torsion, illustrates that the measurement result of turboshaft engine starting torque measurement mechanism is accurate.In addition the not super limits value of starter vibration in cold blowing process, instrument measuring torsional vibration stable output signal, followability is good.
Under the inlet air pressure of 0.26MPa, in starting process, to survey moment of torsion and prescribed torque and have certain deviation, starter rotating speed does not exceed the requirement of minimum essential requirement torque value ± 10% in the time of 2000～8000r/min.After 8000r/min, torque deviation value exceeds specialized range, but irrelevant with measurement, due to engine self-characteristic.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a turboshaft engine starting torque measurement mechanism, is characterized in that, comprising:
Torque sensor (100), described torque sensor (100) comprises the first reverse plate (120), the second reverse plate (140) and coupling spindle (160); Described the first reverse plate (120) and the rotating involutory connection of described the second reverse plate (140), described coupling spindle (160) is arranged in the shaft core position of described the first reverse plate (120) and the shaft core position of described the second reverse plate (140), described coupling spindle (160) one end is provided with first connector (162) of connecting engine input shaft, and the other end is provided with the second connector (164) that connects starter output shaft;
The first mount pad (200), the head end connecting engine housing of described the first mount pad (200), tail end is connected in the first reverse plate (120);
The second mount pad (300), the head end of described the second mount pad (300) connects starter housing, and tail end is connected in the second reverse plate (140).
2. turboshaft engine starting torque measurement mechanism according to claim 1, it is characterized in that, described the first mount pad (200) and described the second mount pad (300) are circular ring structure, the head end of described the first mount pad (200) radially extension forms the first web joint (220), the head end of described the second mount pad (300) radially extension forms the second web joint (320), and described the first web joint (220) and described the second web joint (320) are equipped with screw.
3. turboshaft engine starting torque measurement mechanism according to claim 2, is characterized in that, described screw is uniformly distributed on described the first web joint (220) and described the second web joint (320).
4. turboshaft engine starting torque measurement mechanism according to claim 2, is characterized in that, the interior edge of the end face of described the first web joint (220) extends to form the first location-plate (240) vertically.
5. turboshaft engine starting torque measurement mechanism according to claim 1, is characterized in that, described the first connector (162) and described the second connector (164) are spline structure.
6. turboshaft engine starting torque measurement mechanism according to claim 1, it is characterized in that, described coupling spindle (160) is also provided with two seal grooves (180), seal groove described in one of them (180) is near described the first connector (162), and seal groove described in another (180) is near described the second connector (164).
7. turboshaft engine starting torque measurement mechanism according to claim 1, is characterized in that, described coupling spindle (160) is provided with protection cross section.
8. according to the turboshaft engine starting torque measurement mechanism described in claim 1～7 any one, it is characterized in that, described the first mount pad (200) is connected with described the first reverse plate (120) by securing member, and described the second mount pad (300) is connected with described the second reverse plate (140) by securing member described in another.
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| CN201410282804.5A CN104048788B (en) | 2014-06-23 | 2014-06-23 | Turboshaft engine starting torque measurement mechanism |
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| CN201410282804.5A CN104048788B (en) | 2014-06-23 | 2014-06-23 | Turboshaft engine starting torque measurement mechanism |
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| CN104048788A true CN104048788A (en) | 2014-09-17 |
| CN104048788B CN104048788B (en) | 2016-02-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654328A (en) * | 2017-09-29 | 2018-02-02 | 奇瑞汽车股份有限公司 | The moment of resistance of engine at low ambient temperatures determines method and device |
| CN113266474A (en) * | 2021-06-01 | 2021-08-17 | 中国航空工业集团公司沈阳飞机设计研究所 | Method for measuring starting resistance moment of aero-engine under loading condition |
| CN113702049A (en) * | 2021-08-03 | 2021-11-26 | 中国航发沈阳发动机研究所 | Aeroengine starting torque measuring device |
| CN113740067A (en) * | 2021-09-06 | 2021-12-03 | 中国航发贵阳发动机设计研究所 | Aeroengine starting torque measuring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120055819A (en) * | 2010-11-24 | 2012-06-01 | 한국항공우주연구원 | Torque measuring device for gasturbine engines |
| CN102607751A (en) * | 2012-03-07 | 2012-07-25 | 中国航空动力机械研究所 | Output torque measurement device of turboshaft engine |
| CN103674363A (en) * | 2012-09-18 | 2014-03-26 | 重庆长安汽车股份有限公司 | Test system for low-temperature starting resisting moment of engine |
-
2014
- 2014-06-23 CN CN201410282804.5A patent/CN104048788B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120055819A (en) * | 2010-11-24 | 2012-06-01 | 한국항공우주연구원 | Torque measuring device for gasturbine engines |
| CN102607751A (en) * | 2012-03-07 | 2012-07-25 | 中国航空动力机械研究所 | Output torque measurement device of turboshaft engine |
| CN103674363A (en) * | 2012-09-18 | 2014-03-26 | 重庆长安汽车股份有限公司 | Test system for low-temperature starting resisting moment of engine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654328A (en) * | 2017-09-29 | 2018-02-02 | 奇瑞汽车股份有限公司 | The moment of resistance of engine at low ambient temperatures determines method and device |
| CN107654328B (en) * | 2017-09-29 | 2019-02-22 | 奇瑞汽车股份有限公司 | The moment of resistance of engine at low ambient temperatures determines method and device |
| CN113266474A (en) * | 2021-06-01 | 2021-08-17 | 中国航空工业集团公司沈阳飞机设计研究所 | Method for measuring starting resistance moment of aero-engine under loading condition |
| CN113702049A (en) * | 2021-08-03 | 2021-11-26 | 中国航发沈阳发动机研究所 | Aeroengine starting torque measuring device |
| CN113740067A (en) * | 2021-09-06 | 2021-12-03 | 中国航发贵阳发动机设计研究所 | Aeroengine starting torque measuring device |
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Address after: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee after: AECC HUNAN AVIATION POWERPLANT Research Institute Country or region after: China Address before: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee before: CHINA AVIATION POWER MACHINERY INSTITUTE Country or region before: China |