CN102607751B - Output torque measurement device of turboshaft engine - Google Patents
Output torque measurement device of turboshaft engine Download PDFInfo
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- CN102607751B CN102607751B CN201210058615.0A CN201210058615A CN102607751B CN 102607751 B CN102607751 B CN 102607751B CN 201210058615 A CN201210058615 A CN 201210058615A CN 102607751 B CN102607751 B CN 102607751B
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Abstract
The invention provides an output torque measurement device of a turboshaft engine. The device comprises a power turboshaft, a reference shaft, a power turbine phonic wheel, an angle sensor and an electronic controller, wherein the power turboshaft comprises an input end and an output end which is connected with a load; the reference shaft is fixedly installed on the input end by a fixed end; a free end is cooperatively sheathed with the output end; the free end comprises first torque measuring teeth axially extending; the power turbine phonic wheel is fixedly sheathed at the output end; the power turbine phonic wheel comprises second torque measuring teeth; the second torque measuring teeth and the first torque measuring teeth are evenly crossed and cooperated at an interval; and the angle sensor is electrically connected with the electronic controller. The output torque measurement device is positioned in a low-temperature zone in the front of the turboshaft engine, so as to improve the measurement precision. Meanwhile, the device has simple structure, is convenient to operate and does not need other associated equipment, so that the weight of the engine is lightened, and the pneumatic loss of the engine is reduced. In addition, the device can conveniently measure the output torque and the output power of the turbine engine.
Description
Technical field
The present invention relates to gas-turbine unit field, especially, relate to a kind of output torque measurement device of turboshaft engine.
Background technology
Turboshaft engine is passed to Helicopter Transmission System by power turbine transmission shaft by the mechanical work of power turbine output.For evaluating the performance of turboshaft engine when the test run, need to measure the output power of turbine engine.
Say for general meter, the output power of turboshaft engine can not directly measure, and therefore, need obtain other physical quantity rice by special measurement mechanism and indirectly obtain output power.As: according to the relation between power and moment of torsion, thereby can calculate output power by measuring moment of torsion.
The metering system of existing moment of torsion is: at the rear portion of engine mounting torque measurement mechanism, be provided with exhaust frame, for circuit is installed, so that the signal that torque-measuring apparatus is recorded output simultaneously.
But above-mentioned torque-measuring apparatus exists following not enough:
1, torque-measuring apparatus is installed on the region that engine rear part temperature is higher, thereby has affected the degree of accuracy of measuring;
2, loaded down with trivial details, the complicated operation of structure;
3, exhaust frame matching used with it not only increased the weight of engine, also strengthened aerodynamic loss.
Summary of the invention
The object of the invention is to provide a kind of output torque measurement device of turboshaft engine, and to solve, existing torque-measuring apparatus degree of accuracy is not high, structure is loaded down with trivial details, the technical matters of complicated operation etc.
For achieving the above object, according to an aspect of the present invention, a kind of output torque measurement device of turboshaft engine is provided, turboshaft engine comprises power turbine shaft, the output torque measurement device of turboshaft engine comprises axis of reference, power turbine phonic wheel, angular transducer and electronic controller for the rotational angle of sensing reference axle, wherein, power turbine shaft comprises input end and output terminal, and output terminal is connected with load; Axis of reference is placed on power turbine shaft, and axis of reference comprises stiff end and free end, and stiff end is fixedly installed in input end, and free end coordinates and is nested with output terminal, and free end comprises that axially extended first surveys and turn round tooth; Power turbine phonic wheel fixed cover is placed in output terminal, and power turbine phonic wheel comprises that the second survey turns round tooth, and second surveys and turn round tooth and the first survey and turn round the even compartment of terrain of tooth and intersect and coordinate; Angular transducer is electrically connected with electronic controller.
Further, also comprise for sensing first and survey the speed probe of turning round tooth velocity of rotation, speed probe is electrically connected with electronic controller.
Further, speed probe is integrated in angular transducer.
Further, power turbine shaft is provided with a ring groove, and ring groove is between input end and output terminal, and power turbine shaft is provided with one section of ring groove for surveying moment of torsion section, and axis of reference is placed on surveys moment of torsion section, and axis of reference and survey moment of torsion section clearance fit.
Further, the output torque measurement device of turboshaft engine also comprises the first bearing pin, and stiff end is fixedly installed in input end by the first bearing pin.
Further, the output torque measurement device of turboshaft engine also comprises the first retaining ring, and the first retaining ring is circumferentially arranged on the periphery wall of stiff end.
Further, the output torque measurement device of turboshaft engine also comprises the second bearing pin, and power turbine phonic wheel comprises the installation portion that is fixedly installed in output terminal, and installation portion is fixedly installed in output terminal by the second bearing pin.
Further, the output torque measurement device of turboshaft engine also comprises the second retaining ring, and the second retaining ring is circumferentially arranged on the periphery wall of installation portion.
Further, the first survey is turned round tooth and is circumferentially distributed equably along free-ended, and power turbine phonic wheel comprises the installation portion that is fixedly installed in output terminal, and the second survey is turned round tooth and is axially connected in equably installation portion.
Further, each first is surveyed and turns round tooth and second survey the outside diameter of turning round tooth and equate with each, and cross-sectional width is equal.
Further, first survey and turn round tooth and turn round tooth and carry out degaussing, the deburring processing of sharp limit with the second survey.
Further, free-ended internal face is coated with lubricant medium.
The present invention has following beneficial effect: the output torque measurement device of turboshaft engine of the present invention is installed in power turbine shaft 3, and this position is the anterior low-temperature space of turboshaft engine, thereby has improved the degree of accuracy of measuring.Meanwhile, this apparatus structure is simple, easy to operate, without other support equipment, has alleviated the weight of engine, has reduced the aerodynamic loss of engine.In addition, this device can be measured output torque and the output power of turbine engine easily.
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.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part provides a further understanding of the present invention with rice, 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 axial section schematic diagram of the output torque measurement device of the turboshaft engine of the preferred embodiment of the present invention;
Fig. 2 is the diagrammatic cross-section of A-A direction in Fig. 1; And
Fig. 3 is the sectional perspective schematic diagram of the output torque measurement device of the turboshaft engine of the preferred embodiment of the present invention.
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.
In conjunction with referring to Fig. 1 to Fig. 3, the output torque measurement device of turboshaft engine of the present invention comprises axis of reference 1 and power turbine phonic wheel 2, and this axis of reference 1 and power turbine phonic wheel 2 are all installed in the power turbine shaft 3 of turboshaft engine.The output torque measurement device of this turboshaft engine also comprises angular transducer 5 and electronic controller 6.
Axis of reference 1 is hollow bushing, and it comprises stiff end 11 and free end 13.Axis of reference 1 is placed in power turbine shaft 3, and covers the survey moment of torsion section 37 of power turbine shaft 3.Preferably, axis of reference 1 is clearance fit with this survey moment of torsion section 37.
Particularly, the stiff end 11 of axis of reference 1 is fixedly installed in the input end 31 of power turbine shaft 3.Preferably, stiff end 11 is provided with the first mounting hole 111 radially running through, and input end 31 is also radially provided with first through hole coaxial with the first mounting hole 111.The first bearing pin 41 is passed to the first mounting hole 111 of stiff end 11 and the first through hole of input end 31 successively, thereby be fixedly installed in the input end 31 of power turbine shaft 3 with reference to the stiff end 11 of axle 1.More preferably, in order to prevent the first bearing pin 41 slippages, be circumferentially provided with the first retaining ring 71 at the periphery wall of the stiff end 11 of axis of reference 1.This first retaining ring 71 has limited the radial position of the first bearing pin 41, thereby makes the stiff end 11 of axis of reference 1 be installed on more firmly the input end 31 of power turbine shaft 3.
Power turbine phonic wheel 2 is cylinder-like structure, and it comprises installation portion 21 and multiple second surveying and turn round tooth 23 separately.Wherein, the second survey is turned round tooth 23 and is axially connected in installation portion 21.Preferably, the circumferentially even end wall that is axially connected in installation portion 21 of tooth 23 is turned round in this second survey.More preferably, the number that tooth 23 is turned round in this second survey is four.
Power turbine phonic wheel 2 fixed covers are placed in the output terminal 33 of power turbine shaft 3, that is: this power turbine phonic wheel 2 is positioned at the free end 13 of axis of reference 1.Preferably, adopt the fixed form identical with the stiff end 11 of above-mentioned axis of reference 1, the installation portion 21 of power turbine phonic wheel 2 is fixedly installed in the output terminal 33 of power turbine shaft 3 through the second bearing pin 43.More preferably, adopt the locking mode identical with above-mentioned the first bearing pin 41, be provided with the second retaining ring 73 at the periphery wall of the installation portion 21 of power turbine phonic wheel 2, to prevent the slippage of the second bearing pin 43.
Preferably, first of axis of reference 1 is surveyed and is turned round second of tooth 131 and power turbine phonic wheel 2 to survey the outside diameter of turning round tooth 23 be to equate, and each first is surveyed and turn round the cross-sectional width that tooth 131 turns round tooth 23 with each second survey and also equate.Preferably, first survey and turn round tooth 131 and turn round tooth 23 and all need to carry out degaussing, the deburring processing of sharp limit with the second survey.
First of axis of reference 1 is surveyed the second survey of turning round tooth 131 and power turbine phonic wheel 2 and is turned round tooth 23 and relatively intersect and coordinate, and every adjacent first surveys and turn round tooth 131 and second and survey and turn round the interval that has regulation between tooth 23, and tooth 131 and second is turned round in the first adjacent survey, and to survey the interval of turning round between tooth 23 be uniform.The first survey turn round tooth 131 and second survey turn round tooth 23 above be provided with above-mentioned angular transducer 5.
When use, in the time that power turbine drives power turbine shaft 3 to rotate, power turbine phonic wheel 2 and axis of reference 1 are followed power turbine shaft 3 and are rotated together.In the process of rotation, when power turbine shaft 3 twists distortion because of torsional interaction power, axis of reference 1 stiff end 11 is fixed on the input end 31 of power turbine shaft 3, free end 13 and first is surveyed and is turned round tooth 131 due to unfixing, simultaneously due to axis of reference 1 because of self torsional deflection that the reason such as inertia, air resistance occurs very little, negligible, therefore, first of the free end 13 of axis of reference 1 is surveyed the angular position of turning round tooth 131 and can characterize power turbine shaft 3 input ends 31.In like manner, power turbine phonic wheel 2 is fixed on power turbine shaft 3 output terminals 33, and second of power turbine phonic wheel 2 surveys that to turn round tooth 23 be also freely, and therefore, second of power turbine phonic wheel 2 is surveyed the angular position of turning round tooth 23 and can characterize power turbine shaft 3 output terminals 33.Like this, in the time having reversed angle A because of torsional interaction power between the input end 31 of power turbine shaft 3 and output terminal 33, first of axis of reference 1 free end 13 is surveyed and is turned round tooth 131 and survey and turn round tooth 23 and also reversed angle A with respect to second of power turbine phonic wheel 2, first surveys and turns round tooth 131 adjacent second to survey and turn round tooth 23 and rotated angle A as object of reference with it.Meanwhile, angular transducer 5 has measured angle A, and the angle A of obtaining is converted into the first electric signal sends to above-mentioned electronic controller 6 to process.Electronic controller 6 is according to the relation between angle A and the output torque of turboshaft engine, thereby can learn the output torque of turboshaft engine.
Preferably, the first survey turn round tooth 131 above be also provided with speed probe.In the time that axis of reference 1 and power turbine shaft 3 are followed power turbine rotation, first of free end 13 is surveyed and is turned round tooth 131 and adjacent second survey and turn round tooth 23 and have certain rotating speed with it.This speed probe collection first is surveyed and is turned round tooth 131 and adjacent second survey and turn round tooth 23 and within the unit interval, pass through the number of teeth of this speed probe with it, and the number of teeth of obtaining is converted into the second electric signal sends to above-mentioned electronic controller 6.Because it is known that the axle of speed probe revolves the number of teeth turning around, therefore electronic controller 6 can be obtained according to the number of teeth of passing through in the unit interval obtaining the rotating speed of axis of reference 1 and power turbine shaft 3.Because the output power of turbine engine and the above output torque obtaining and rotating speed have specific funtcional relationship, therefore, electronic controller 6 can obtain the output power of turboshaft engine according to the above-mentioned angle A obtaining and rotating speed again.
In other embodiments, above-mentioned angular transducer 5 and speed probe can be integrated into the compound sensor that has acquisition angles and rotating speed concurrently.Compound sensor can gather first of free end 13 simultaneously and survey and turn round tooth 131 and turn round with the second survey angle A and the rotating speed that tooth 23 rotates, and the angle A collecting and rotating speed are converted into the 3rd electric signal send to above-mentioned electronic controller 6.In like manner, between the output power of turbine engine and angle A and rotating speed, there is certain relation.Therefore, electronic controller 6 can directly obtain the output power of turboshaft engine according to angle A and rotating speed.
As known from the above, the output torque measurement device of turboshaft engine of the present invention is installed in power turbine shaft 3, and this position is the anterior low-temperature space of turboshaft engine, thereby has improved the degree of accuracy of measuring.Meanwhile, this apparatus structure is simple, easy to operate, without other support equipment, has alleviated the weight of engine, has reduced the aerodynamic loss of engine.In addition, this device can be measured output torque and the output power of turbine engine easily.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, say for those skilled in the art's rice, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (12)
1. the output torque measurement device of a turboshaft engine, described turboshaft engine comprises power turbine shaft (3), it is characterized in that, the output torque measurement device of described turboshaft engine comprises axis of reference (1), power turbine phonic wheel (2), angular transducer (5) and electronic controller (6) for the rotational angle of axis of reference described in sensing (1), wherein
Described power turbine shaft (3) comprises input end (31) and output terminal (33), and described output terminal (33) is connected with load;
Described axis of reference (1) is placed on described power turbine shaft (3), described axis of reference (1) comprises stiff end (11) and free end (13), described stiff end (11) is fixedly installed in described input end (31), described free end (13) coordinates and is nested with described output terminal (33), and described free end (13) comprises that axially extended first surveys and turn round tooth (131);
Described power turbine phonic wheel (2) fixed cover is placed in described output terminal (33), described power turbine phonic wheel (2) comprises that the second survey turns round tooth (23), and described second surveys and turn round tooth (23) and described first and survey and turn round the even compartment of terrain of tooth (131) and intersect and coordinate;
Described angular transducer (5) is electrically connected with described electronic controller (6).
2. the output torque measurement device of turboshaft engine according to claim 1, it is characterized in that, also comprise the speed probe of turning round tooth (131) velocity of rotation for the first survey described in sensing, described speed probe is electrically connected with described electronic controller (6).
3. the output torque measurement device of turboshaft engine according to claim 2, is characterized in that, described speed probe is integrated in described angular transducer (5).
4. the output torque measurement device of turboshaft engine according to claim 1, it is characterized in that, described power turbine shaft (3) is provided with a ring groove (35), described ring groove (35) is positioned between described input end (31) and described output terminal (33), described power turbine shaft (3) is provided with one section of described ring groove (35) for surveying moment of torsion section (37), described axis of reference (1) is placed on described survey moment of torsion section (37), and described axis of reference (1) and described survey moment of torsion section (37) clearance fit.
5. the output torque measurement device of turboshaft engine according to claim 1, it is characterized in that, the output torque measurement device of described turboshaft engine also comprises the first bearing pin (41), and described stiff end (11) is fixedly installed in described input end (31) by described the first bearing pin (41).
6. the output torque measurement device of turboshaft engine according to claim 5, it is characterized in that, the output torque measurement device of described turboshaft engine also comprises the first retaining ring (71), and described the first retaining ring (71) is circumferentially arranged on the periphery wall of described stiff end (11).
7. the output torque measurement device of turboshaft engine according to claim 1, it is characterized in that, the output torque measurement device of described turboshaft engine also comprises the second bearing pin (43), described power turbine phonic wheel (2) comprises the installation portion (21) that is fixedly installed in described output terminal (33), and described installation portion (21) is fixedly installed in described output terminal (33) by described the second bearing pin (43).
8. the output torque measurement device of turboshaft engine according to claim 7, it is characterized in that, the output torque measurement device of described turboshaft engine also comprises the second retaining ring (73), and described the second retaining ring (73) is circumferentially arranged on the periphery wall of described installation portion (21).
9. the output torque measurement device of turboshaft engine according to claim 1, it is characterized in that, tooth (131) circumferentially distributing equably along described free end (13) turned round in described the first survey, described power turbine phonic wheel (2) comprises the installation portion (21) that is fixedly installed in described output terminal (33), and described the second survey is turned round tooth (23) and is axially connected in equably described installation portion (21).
10. the output torque measurement device of turboshaft engine according to claim 1, is characterized in that, described in each, first surveys and turn round tooth (131) and second survey the outside diameter of turning round tooth (23) and equate with described in each, and cross-sectional width is equal.
The output torque measurement device of 11. turboshaft engines according to claim 1, is characterized in that, described first surveys and turn round tooth (131) and described second and survey and turn round tooth (23) and carry out degaussing, the deburring processing of sharp limit.
The output torque measurement device of 12. turboshaft engines according to claim 1, is characterized in that, the internal face of described free end (13) is coated with lubricant medium.
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| CN201210058615.0A CN102607751B (en) | 2012-03-07 | 2012-03-07 | Output torque measurement device of turboshaft engine |
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| CN201210058615.0A CN102607751B (en) | 2012-03-07 | 2012-03-07 | Output torque measurement device of turboshaft engine |
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| CN102607751B true CN102607751B (en) | 2014-06-11 |
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| FR2995018B1 (en) * | 2012-09-06 | 2014-09-12 | Snecma | TURBOMACHINE COMPRISING MEANS FOR MEASURING THE SPEED AND TORSION TORQUE OF A TURBOMACHINE SHAFT AND METHOD OF MONITORING SAID TREE |
| CN103542965B (en) * | 2013-10-29 | 2015-10-28 | 中国航空动力机械研究所 | The torch measuring system of turboshaft engine output shaft and torque calibration method |
| CN104048788B (en) * | 2014-06-23 | 2016-02-17 | 中国航空动力机械研究所 | Turboshaft engine starting torque measurement mechanism |
| CN105547691B (en) * | 2015-12-03 | 2018-08-07 | 中国南方航空工业(集团)有限公司 | Power shaft assembly torque calibrating device and torque match control method |
| CN105300684B (en) * | 2015-12-03 | 2018-12-14 | 中国南方航空工业(集团)有限公司 | Long axis component torque calibrating device and the torque calibration method for using the device |
| US10975717B2 (en) * | 2016-12-19 | 2021-04-13 | General Electric Company | Torque monitoring device for a gas turbine engine |
| CN106706184B (en) * | 2017-01-06 | 2019-02-15 | 中国科学院工程热物理研究所 | A kind of engine torque measuring device |
| RU2673869C1 (en) * | 2018-01-09 | 2018-11-30 | федеральное государственное бюджетное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" | Stand for measuring energy indicators of power plant |
| CN109084920B (en) * | 2018-06-14 | 2020-04-17 | 天津大学 | High-precision floating connecting device for torque sensor |
| CN109632314B (en) * | 2018-11-23 | 2020-11-10 | 河北华北柴油机有限责任公司 | Engine torque measuring device and measuring method |
| CN111982369B (en) * | 2020-07-27 | 2022-05-17 | 中国航发湖南动力机械研究所 | Output shaft torsion measuring method |
| CN113153439B (en) * | 2021-05-06 | 2022-04-22 | 中国航发湖南动力机械研究所 | Compact turbine shaft structure with torsion measuring function |
| CN113340496A (en) * | 2021-06-30 | 2021-09-03 | 重庆青山工业有限责任公司 | Gearbox drag torque measurement system |
| CN113670621A (en) * | 2021-08-13 | 2021-11-19 | 上海尚实能源科技有限公司 | Torque measuring device of turboprop engine |
| CN113639029B (en) * | 2021-08-16 | 2023-04-25 | 上海尚实航空发动机股份有限公司 | Vortex oar engine reduction gearbox unit body |
| CN113959722B (en) * | 2021-10-28 | 2023-06-09 | 南京航空航天大学 | Torque-pitch-phase angle-rotating speed integrated measurement device and method based on tone wheel |
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