CN106706184A - Engine toque measuring device - Google Patents
Engine toque measuring device Download PDFInfo
- Publication number
- CN106706184A CN106706184A CN201710009338.7A CN201710009338A CN106706184A CN 106706184 A CN106706184 A CN 106706184A CN 201710009338 A CN201710009338 A CN 201710009338A CN 106706184 A CN106706184 A CN 106706184A
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- CN
- China
- Prior art keywords
- torque
- gear shaft
- compression ring
- intermediate gear
- piston
- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/16—Rotary-absorption dynamometers, e.g. of brake type
- G01L3/22—Rotary-absorption dynamometers, e.g. of brake type electrically or magnetically actuated
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Testing Of Engines (AREA)
Abstract
The invention relates to an engine output torque measuring device which is particularly suitable for a small-size gas turbine engine. A torque piston is arranged at the front end of an intermediate gear shaft of the engine, a torque piston contact force-measuring device is arranged in front of the torque piston and comprises a compression ring and a sliding resistor, and a sliding sheet is driven to slide on a sliding bar of the sliding resistor when the outer side of the compression ring is in compression; when the compression ring is not in compression, an elastic part pushes the compressing ring to move to a free end of the sliding bar of the sliding resistor; when the engine outputs shaft power, the front end of the torque piston presses against the outer side of the compression ring and pushes the compression ring to move; and the sliding resistor, an external power source and an ampere meter form a loop. According to the torque measuring device provided by the invention, current is directly measured to obtain an axial force of a gear train and an engine output torque is indirectly measured based on the axial force, thereby improving the response speed of torque measurement; moreover, because measurement errors are only influenced by elasticity coefficients of a spring pack and voltage stability of a power source, measurement precision and reliability are high.
Description
Technical field
The present invention relates to a kind of engine output torque measurement apparatus, and in particular to be applied to based on shaft power output
Small Gas Turbine Engine, the device of real-time measurement is carried out by the axial force of prototype gear axle to engine output torque.
Background technology
To the gas-turbine unit based on being exported with shaft power, such as gas turbine, turboshaft engine and whirlpool oar start
Machine etc., it is necessary monitoring means that measurement in real time is carried out to its output torque.On the one hand the load condition of engine can be monitored, is
Operating personnel provide foundation；On the other hand when engine output torque is excessive, taking the necessary measures ensures engine shafting not
Trigger accident because of overload.
At present, it is still challenging problem accurate measurement to be carried out to gas-turbine unit output shaft.Existing combustion
The torque-measuring apparatus of gas eddy turbine is the output torque of the method by measuring oil pressure and then measurement engine mostly, for example
By measuring the axial force of the indirect prototype gear axle of the pressure in pressure chamber, so as to realize the measurement to engine torque.By
The time is needed in the foundation of oil pressure, so the data of such measurement device have serious hysteresis quality；And due to influence oil pressure
Factor it is more, for example gear-box pressure oscillation, oil feed line block etc., cause the reliability of torque measurement relatively low.
The content of the invention
For disadvantages mentioned above and deficiency that prior art is present, the present invention proposes a kind of Small Gas Turbine Engine and turns round
Square measurement apparatus, based on measurement compression deformation of the spring, and deflection are associated with current signal, by the axial direction of prototype gear system
Power measures engine output torque indirectly, so that the response speed of torque measurement is improved, and because measurement error only receives spring
The influence of a small amount of factor such as the measurement of group coefficient of elasticity and supply voltage stability, so certainty of measurement and reliability are high.
The present invention for the technical scheme that is used of its technical problem of solution for：
A kind of engine output torque measurement apparatus, the front end of the engine sets input gear axle, intermediate gear shaft
And output gear shaft, the input gear axle is by a cylindric spiral gear engaged with the intermediate gear shaft by engine turbine
Power be transferred to intermediate gear shaft, the intermediate gear shaft passes through another cylindric spiral gear engaged with the output gear shaft
Power is transferred to the output gear shaft, the output gear shaft couples with external loading, it is characterised in that
The front end of the intermediate gear shaft sets a stepped hole, and angular contact ball bearing is provided with the stepped hole, described
The outer shroud of angular contact ball bearing is fixedly installed on the endoporus of the intermediate gear shaft front end, in the inner ring of the angular contact ball bearing
A torque piston is fixedly installed, the front of the torque piston sets torque piston contact dynamometer, wherein,
The torque piston contact dynamometer includes a compression ring and a slide resistor, is set on the slide resistor
There is slide plate, the outside of the slide plate is fixedly connected with the inside of the compression ring, the inner side of the compression ring or the slide plate leads to
An elastomeric element is crossed to be connected on the body of the slide resistor；The cunning can be driven when the outside of the compression ring is pressurized
Piece is slided on the slide bar of the slide resistor to the fixing end of the slide resistor, and now the elastomeric element is in pressure
Contracting state；When the outside of the compression ring is not pressurized, the elastomeric element promotes the compression ring to be moved to the slip electricity
Hinder the free end of device slide bar；
When the engine does not externally export shaft power, the front end of the torque piston has with the outside of the compression ring
There is an axial gap；When the engine externally exports shaft power, the front end of the torque piston is outer with the compression ring
Side abuts and promotes the compression ring to move；
The slide resistor and an external power source and an ammeter constitute loop.
Preferably, the rear and front end of the intermediate gear shaft is respectively provided with a stick roller bearing, and the stick roller bearing is used to prop up
Hold the intermediate gear shaft and bear radial load.
Preferably, the torque piston contact dynamometer also includes a support housing, and the openend of the support housing is supported
It is connected on the bearing block of the intermediate gear shaft front end, thus the support housing forms a closed cavity with torque piston.
Further, sealing is provided between end bearing block before the openend of the support housing and the intermediate gear shaft
Part.
Further, the end of the slide resistor is fixedly installed on the support housing.
Further, the end of the elastomeric element is fixedly installed on a close supporting shell on the slide resistor
On the annular flange face of body.
Preferably, a baffle plate is also set up in the stepped hole of the intermediate gear shaft front end, the baffle plate is by the angular contact
Ball bearing is connected on the step surface of the stepped hole.
Further, radial clearance is provided between the slide bar of the compression ring and the slide resistor, when the bullet
Property part when being in compressive state, lubricating oil in the support enclosure interior cavity can enter described by the radial clearance
The endoporus of torque piston, and and then the angular contact ball bearing and institute are flowed to by the passage that the torque piston and baffle plate are constituted
The stick roller bearing of intermediate gear shaft front end is stated, bearing is lubricated and is cooled down.
Further, the front end of the torque piston is provided with guide ring, and the guide ring can be along the support housing
Internal perisporium slide anteroposterior.
Preferably, a step surface is set on the body of the torque piston, and the inner ring of the angular contact ball bearing is fixed on
On the step surface of the torque piston.
Preferably, the slide resistor is high value resistors.
Preferably, the elastomeric element is compression spring set.
Preferably, the engine is Small Gas Turbine Engine.
Compared with the existing technology, Small Gas Turbine Engine torque-measuring apparatus of the invention, by then passing through measurement
Contact axial force measures the moment of torsion of engine, the characteristics of with responding rapid；The measurement error of whole measuring system is only received
Groups of springs coefficient of elasticity measures the influence with a small amount of factor such as supply voltage stability, so certainty of measurement and reliability are high；By
In the groups of springs constituted using multiple springs as elastic pressure-resistant element, seriation and standardized designs are capable of achieving.
Brief description of the drawings
Fig. 1 is the structural representation of engine torque measurement apparatus of the invention；
Fig. 2 is the partial enlarged drawing of engine torque measurement apparatus of the invention.
Specific embodiment
To make the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with the accompanying drawings with specific embodiment party
Formula is described in further detail to the present invention.It should be noted that it is as described below be only presently preferred embodiments of the present invention, not because
This and limit protection scope of the present invention.
The present invention for the technical scheme that is used of its technical problem of solution for：
As shown in Figure 1, 2, engine output torque measurement apparatus of the invention, engine is preferably small gas turbine
Engine, the front end of engine sets input gear axle 1, intermediate gear shaft 2 and output gear shaft 3, and input gear axle 1 passes through one
The power of engine turbine is transferred to intermediate gear shaft 2, idler gear by the cylindric spiral gear 102 engaged with intermediate gear shaft 2
Power is transferred to output gear shaft 3, output gear shaft by axle 2 by another cylindric spiral gear 203 engaged with output gear shaft 3
3 couple with external loading, realize power from power to the transmission of load.The rear and front end of intermediate gear shaft 2 is respectively provided with a rolling
Mandrel holds 81,82, and stick roller bearing 81,82 is used to support intermediate gear shaft 2 and bears radial load.
In order to reduce the load at torque measurement, it is adapted to be turned round in the idler gear front end that rotating speed is relatively low, load is moderate
Square is measured, and one of the two pairs of effects of cylindric spiral gear 102,203 are exactly that the transmission for making moment of torsion has axial component, the axial force to
Preceding promotion intermediate gear shaft 2.Therefore, setting a stepped hole in the front end of intermediate gear shaft 2, angular contact ball is provided with stepped hole
The baffle plate 9 of bearing 4 and, baffle plate 9 is connected on the step surface of stepped hole by angular contact ball bearing 4.The outer shroud of angular contact ball bearing 4
It is fixedly installed on the endoporus of the front end of intermediate gear shaft 2, a torque piston 5 is fixedly installed in the inner ring of angular contact ball bearing 4, turns round
The front of square piston 5 sets torque piston contact dynamometer 6.
Torque piston contact dynamometer 6 includes a compression ring 61 and a slide resistor 64, torque piston contact dynamometer 6
Also include a support housing, support the openend of housing to be connected on the bearing block of the front end of intermediate gear shaft 2, thus support housing
A closed cavity is formed with torque piston.It is provided between end bearing block before the openend of support housing and intermediate gear shaft 2 close
Sealing.The end of compression spring set 62 is fixedly installed on slide resistor 64 on the annular flange face of a close support housing.
The front end of torque piston 5 is provided with guide ring, and guide ring can be along the internal perisporium slide anteroposterior of support housing.The sheet of torque piston 5
One step surface is set on body, and the inner ring of angular contact ball bearing 4 is fixed on the step surface of torque piston 5.Slide resistor 64
End is fixedly installed on the bottom wall of support housing, and slide plate 63, outside and the compression of slide plate 63 are provided with slide resistor 64
The inner side of ring 61 is fixedly connected, and the inner side of compression ring 61 or slide plate 63 is connected to slide resistor 64 by a compression spring set 62
Body on；Can drive slide plate 63 on the slide bar of slide resistor 64 to slide resistor when the outside of compression ring 61 is pressurized
64 fixing end is slided, and now compression spring set 62 is in compressed state；When the outside of compression ring 61 is not pressurized, bullet is compressed
Spring group 62 promotes compression ring 61 to be moved to the free end of the slide bar of slide resistor 64；When engine does not externally export shaft power,
The front end of torque piston 5 has an axial gap △ 1 with the outside of compression ring 61；When engine externally exports shaft power, turn round
The front end of square piston 5 abuts with the outside of compression ring 61 and promotes compression ring 61 to move；The external power source 7 of slide resistor 64 and
Loop is constituted with an ammeter.
By angular contact ball bearing 4 by the axial force transmission of intermediate gear shaft 2 to torque piston 5 and make its forward end move
Dynamic, when axial gap △ 1 is changed into 0, torque piston contacts the compression ring 61 of dynamometer 6, compression ring compression spring set 62 and to
Move in front.Compression ring 61 is moved and causes that the slide plate 63 being arranged on also is moved forward, and electricity is slided so as to change high value
Resistance device 64 accesses the resistance value of voltage-stabilized power supply circuit 7, by measuring the electric current in the circuit by measure the compression of groups of springs
Amount, the axial force of gear shaft can be calculated by Hooke's law, and then force analysis by cylindric spiral gear can be calculated
The moment of torsion of intermediate gear shaft transmission, and then can obtain the output torque of engine.
Radial clearance △ 2 is provided between the slide bar of compression ring 61 and slide resistor 64, when compression spring set 62 is in
During compressive state, the lubricating oil in support enclosure interior cavity can enter the endoporus of torque piston 5 by radial clearance △ 2, and
And then the roller of angular contact ball bearing 4 and the front end of intermediate gear shaft 2 is flowed to by the passage △ 3 that torque piston 5 and baffle plate 9 are constituted
Bearing 81, is lubricated and cools down to bearing.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, simply original of the invention is illustrated described in above-described embodiment and specification
Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements
All fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appending claims and its equivalent circle.
It is fixed.
Claims (10)
1. a kind of engine output torque measurement apparatus, the front end of the engine set input gear axle, intermediate gear shaft and
Output gear shaft, the input gear axle passes through a cylindric spiral gear engaged with the intermediate gear shaft by engine turbine
Power is transferred to intermediate gear shaft, and the intermediate gear shaft will by another cylindric spiral gear engaged with the output gear shaft
Power is transferred to the output gear shaft, and the output gear shaft couples with external loading, it is characterised in that
The front end of the intermediate gear shaft sets a stepped hole, and angular contact ball bearing, the corner connection are provided with the stepped hole
The outer shroud for touching ball bearing is fixedly installed on the endoporus of the intermediate gear shaft front end, solid in the inner ring of the angular contact ball bearing
One torque piston is set surely, and the front of the torque piston sets torque piston contact dynamometer, wherein,
The torque piston contact dynamometer includes a compression ring and a slide resistor, and cunning is provided with the slide resistor
Piece, the outside of the slide plate is fixedly connected with the inside of the compression ring, and the inner side of the compression ring or the slide plate passes through one
Elastomeric element is connected on the body of the slide resistor；The slide plate can be driven to exist when the outside of the compression ring is pressurized
Slided to the fixing end of the slide resistor on the slide bar of the slide resistor, now the elastomeric element is in compression shape
State；When the outside of the compression ring is not pressurized, the elastomeric element promotes the compression ring to be moved to the slide resistor
The free end of slide bar；
When the engine does not externally export shaft power, the front end of the torque piston has one with the outside of the compression ring
Axial gap；When the engine externally exports shaft power, the front end of the torque piston is supported with the outside of the compression ring
Connect and promote the compression ring to move；
The slide resistor and an external power source and an ammeter constitute loop.
2. torque-measuring apparatus according to claim 1, it is characterised in that the rear and front end difference of the intermediate gear shaft
One stick roller bearing is set, and the stick roller bearing is used to support the intermediate gear shaft and bears radial load.
3. the torque-measuring apparatus according to the claims, it is characterised in that the torque piston contact dynamometer is also
Including a support housing, the openend of the support housing is connected to before the intermediate gear shaft 2 on the lateral wall of end bearing block,
Thus the support housing is internally formed a closed cavity with the torque piston.
4. the torque-measuring apparatus according to the claims, it is characterised in that the openend of the support housing and institute
State and be provided with seal between the lateral wall of end bearing block before intermediate gear shaft.
5. the torque-measuring apparatus according to the claims, it is characterised in that the end of the slide resistor is fixed
It is arranged on the support housing.
6. the torque-measuring apparatus according to the claims, it is characterised in that the end of the elastomeric element is fixed and set
One is put on the slide resistor on the annular flange face of the support shell bottom wall.
7. the torque-measuring apparatus according to the claims, it is characterised in that the step of the intermediate gear shaft front end
A baffle plate is also set up in hole, the baffle plate is connected on the step surface of the stepped hole by the angular contact ball bearing.
8. the torque-measuring apparatus according to the claims, it is characterised in that the compression ring and the swept resistance
Radial clearance is provided between the slide bar of device, when the elastomeric element is in compressive state, the support enclosure interior cavity
In lubricating oil can by the radial clearance enter the torque piston endoporus, and and then by the torque piston with gear
The passage that plate is constituted flows to the stick roller bearing of the angular contact ball bearing and the intermediate gear shaft front end, and bearing is lubricated
And cooling.
9. the torque-measuring apparatus according to the claims, it is characterised in that the front end of the torque piston is provided with
Guide ring, the guide ring can be along the internal perisporium slide anteroposterior of the support housing.
10. the torque-measuring apparatus according to the claims, it is characterised in that set on the body of the torque piston
One step surface, the inner ring of the angular contact ball bearing is fixed on the step surface of the torque piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710009338.7A CN106706184B (en) | 2017-01-06 | 2017-01-06 | A kind of engine torque measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710009338.7A CN106706184B (en) | 2017-01-06 | 2017-01-06 | A kind of engine torque measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106706184A true CN106706184A (en) | 2017-05-24 |
| CN106706184B CN106706184B (en) | 2019-02-15 |
Family
ID=58908044
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710009338.7A Active CN106706184B (en) | 2017-01-06 | 2017-01-06 | A kind of engine torque measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106706184B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655605A (en) * | 2017-11-15 | 2018-02-02 | 宜春学院 | A kind of small-sized trunnion axis wind energy conversion system axial thrust-measuring device |
| CN109163902A (en) * | 2018-09-18 | 2019-01-08 | 株洲格斯特动力机械有限责任公司 | Electric-controlled hydraulic torque measuring mechanism for star-like retarder |
| CN110455539A (en) * | 2019-07-15 | 2019-11-15 | 成都航天科工微电子系统研究院有限公司 | A kind of gear-box type axial direction force loading device and method |
| CN110895174A (en) * | 2019-12-26 | 2020-03-20 | 上海尚实能源科技有限公司 | Dynamic torque measuring mechanism of turbine engine |
| CN113503305A (en) * | 2021-08-03 | 2021-10-15 | 中国航发湖南动力机械研究所 | Long and thin flexible shaft structure of sectional type engine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230057234A1 (en) * | 2021-08-19 | 2023-02-23 | Pratt & Whitney Canada Corp. | Method and system for operating an aircraft having a turboprop engine |
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|---|---|---|---|---|
| US4091663A (en) * | 1975-10-22 | 1978-05-30 | Avco Corporation | Torque indicating device |
| GB2182778B (en) * | 1985-11-04 | 1990-03-28 | Teledyne Ind | Aircraft engine torque meters |
| CN1641329A (en) * | 2003-12-17 | 2005-07-20 | 沙厄-丹福丝股份有限公司 | Method and means for monitoring torque in a hydraulic power unit |
| 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 |
| CN103344365A (en) * | 2013-06-27 | 2013-10-09 | 中国南方航空工业(集团)有限公司 | Torque measuring device |
| CN105547550A (en) * | 2016-01-13 | 2016-05-04 | 中国航空动力机械研究所 | Torque metering device |
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2017
- 2017-01-06 CN CN201710009338.7A patent/CN106706184B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4091663A (en) * | 1975-10-22 | 1978-05-30 | Avco Corporation | Torque indicating device |
| GB2182778B (en) * | 1985-11-04 | 1990-03-28 | Teledyne Ind | Aircraft engine torque meters |
| CN1641329A (en) * | 2003-12-17 | 2005-07-20 | 沙厄-丹福丝股份有限公司 | Method and means for monitoring torque in a hydraulic power unit |
| 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 |
| CN103344365A (en) * | 2013-06-27 | 2013-10-09 | 中国南方航空工业(集团)有限公司 | Torque measuring device |
| CN105547550A (en) * | 2016-01-13 | 2016-05-04 | 中国航空动力机械研究所 | Torque metering device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655605A (en) * | 2017-11-15 | 2018-02-02 | 宜春学院 | A kind of small-sized trunnion axis wind energy conversion system axial thrust-measuring device |
| CN107655605B (en) * | 2017-11-15 | 2024-02-09 | 宜春学院 | Axial thrust measuring device of small horizontal axis wind turbine |
| CN109163902A (en) * | 2018-09-18 | 2019-01-08 | 株洲格斯特动力机械有限责任公司 | Electric-controlled hydraulic torque measuring mechanism for star-like retarder |
| CN110455539A (en) * | 2019-07-15 | 2019-11-15 | 成都航天科工微电子系统研究院有限公司 | A kind of gear-box type axial direction force loading device and method |
| CN110895174A (en) * | 2019-12-26 | 2020-03-20 | 上海尚实能源科技有限公司 | Dynamic torque measuring mechanism of turbine engine |
| CN113503305A (en) * | 2021-08-03 | 2021-10-15 | 中国航发湖南动力机械研究所 | Long and thin flexible shaft structure of sectional type engine |
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| Publication number | Publication date |
|---|---|
| CN106706184B (en) | 2019-02-15 |
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