CN104634494A - Thrust/torque measuring device for pod test - Google Patents
Thrust/torque measuring device for pod test Download PDFInfo
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- CN104634494A CN104634494A CN201510054466.4A CN201510054466A CN104634494A CN 104634494 A CN104634494 A CN 104634494A CN 201510054466 A CN201510054466 A CN 201510054466A CN 104634494 A CN104634494 A CN 104634494A
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- 238000012360 testing method Methods 0.000 title claims abstract description 13
- 238000005259 measurement Methods 0.000 claims abstract description 43
- 239000011888 foil Substances 0.000 claims description 24
- 238000009434 installation Methods 0.000 claims description 12
- 210000003205 muscle Anatomy 0.000 claims description 9
- 238000013519 translation Methods 0.000 claims description 6
- 238000011160 research Methods 0.000 abstract description 5
- 238000002474 experimental method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Force Measurement Appropriate To Specific Purposes (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a thrust/torque measuring device for a pod test. The thrust/torque measuring device comprises a main shaft, wherein one end of the main shaft is directly connected with an internal motor of a cabin, and the other end of the main shaft is connected with a thrust/torque sensor; the thrust/torque sensor is divided into a thrust measuring section and a torque measuring section and is connected with a propeller mounting shaft; a propeller is directly mounted on the propeller mounting shaft; thrust and torque generated by the propeller are directly measured by the thrust/torque sensor. The thrust/torque measuring device is simple in structure; the thrust/torque sensor can be mounted by abutting against the propeller; the device is small and compact in form, can be conveniently arranged in the cabin for use, and is high in measurement accuracy; the interference of two component forces is small; the measurement error of measuring the thrust and the torque by a conventional self-propulsion instrument caused by shaft system friction is eliminated, and the device plays an important role in deep research on the experiment of a pod propeller.
Description
Technical field
The present invention relates to a kind of thrust torques measurement mechanism, particularly relate to the thrust torques measurement mechanism of a kind of gondola test.
Background technology
Along with the development of electric propulsion technology, PODDED PROPULSOR is using its superior hydrodynamic performance and install and use flow process reliably and be used in worldwide gradually as typical representative.Various types of PODDED PROPULSOR gradually by people are developed, in order to novel PODDED PROPULSOR is come into operation as early as possible, must detailed its hydrodynamic performance of research.With regard to current research, the new design concept of major part is still in theoretical and numerically modeling stage, the main cause of this phenomenon is caused to be the manpower and materials that research experiment and the research of real ship need at substantial, and need meticulous proving installation, especially lack a kind of stable built-in measurement mechanism and meticulous reliable measurement is carried out to the thrust of test and moment of torsion.And adopt the drawback of theoretical study method to be also apparent, due to the difference of the model chosen and governing equation, cause result of study and actual situation may have very large discrepancy, easily to further studying the effect of misleading.And the sensor of requirement of experiment or enough little and also enough high in precision from boat instrument size, current existing sensor or all heavy than the thrust torques sensor construction of testing requirements from boat instrument structure, owing to adopting the measuring method of column type balance, cause measuring accuracy, stability, especially the size of device all cannot reach the standard of testing requirements.
Summary of the invention
The object of the invention is to provide in order to accurate forecast more and the performance optimizing PODDED PROPULSOR the thrust torques measurement mechanism of the gondola test that a kind of structure is simple, reliability is high.
The object of the present invention is achieved like this: comprise cabin body built-in motor, the main shaft be connected with the output shaft of cabin body built-in motor, the thrust torques sensor be connected with main shaft, the screw propeller installation shaft be connected with thrust torques sensor and the screw propeller be sleeved in screw propeller installation shaft, described thrust torques sensor comprises torque measurement section and thrust measurement section, torque measurement section center is provided with perforate, the first full-bridge foil gauge is posted in perforate, in the symmetria bilateralis of described perforate, semi-circular recesses is set, the second full-bridge foil gauge is posted in described thrust measurement section centre position, the two ends of the second full-bridge foil gauge position one row through hole is set respectively and two described row through holes with the center of the second full-bridge foil gauge for symcenter is arranged in thrust measurement section, often the number of openings of row through hole has five at least, the axis of each through hole of first row by the center of the second full-bridge foil gauge to the equidistant translation in side of thrust measurement section, the axis of each through hole of secondary series by the center of the second full-bridge foil gauge to the equidistant translation of opposite side of thrust measurement section, muscle sheet is formed between each through hole.
Compared with prior art, the invention has the beneficial effects as follows: the present invention, in order to meet the requirement of gondola propulsion trial, adopts bar type structure to arrange, reduces physical dimension, and improve measuring accuracy.When screw propeller rotates generation thrust and moment of torsion, the effect of axial force makes the muscle sheet being arranged in axis both sides all produce distortion, the present invention adopts two groups of muscle sheets to bear the effect of axial force simultaneously, make the deformation of generation more evenly mild, add serviceable life, also improve measuring accuracy, the power of axial deformation is measured eventually through the second full-bridge foil gauge in the middle of two groups of muscle sheets simultaneously.The measuring principle of moment of torsion is similar, when torsional interaction is in sounding rod, makes it produce twisting strain, and the opening that this device adopts is arc opening, compared with traditional square metering system such as grade, no matter is the precision and serviceable life measured, is all improved.Arrangement convenience of the present invention is succinct, and measuring accuracy is high, and reliability is high, is applicable to various types of PODDED PROPULSOR and opens water and self-propulsion test, for accurate forecast more with optimize the performance of PODDED PROPULSOR and ship trial all has great importance.
Accompanying drawing explanation
Fig. 1 is structural representation one of the present invention;
Fig. 2 is structural representation two of the present invention;
Fig. 3 (A) is the A-A cut-open view of Fig. 2, and Fig. 3 (B) is the B-B cut-open view of Fig. 2, and Fig. 3 (C) is the C-C cut-open view of Fig. 2.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Composition graphs 1 to Fig. 3 (C), the present invention includes cabin body built-in motor, the main shaft 4 be connected with the output shaft of cabin body built-in motor, the thrust torques sensor be connected with main shaft 4, the screw propeller installation shaft 1 be connected with thrust torques sensor and the screw propeller be sleeved in screw propeller installation shaft 1, described thrust torques sensor comprises torque measurement section 3 and thrust measurement section 2, torque measurement section 3 center is provided with perforate 7, the first full-bridge foil gauge is posted in perforate 7, in the symmetria bilateralis of described perforate 7, semi-circular recesses 8 is set, the second full-bridge foil gauge 6 is posted in described thrust measurement section 2 centre position, the two ends of the second full-bridge foil gauge 6 position one row through hole 5 is set respectively and two described row through holes with the center of the second full-bridge foil gauge 6 for symcenter is arranged in thrust measurement section 2, often the number of openings of row through hole has five at least, the axis of each through hole of first row by the center of the second full-bridge foil gauge 6 to the equidistant translation in side of thrust measurement section 2, the axis of each through hole of secondary series by the center of the second full-bridge foil gauge 6 to the equidistant translation of opposite side of thrust measurement section 2, muscle sheet 9 is formed between each through hole.
One end of main shaft 4 of the present invention is directly connected with cabin body built-in motor, the other end is connected with built-in thrust torques sensor, namely main shaft 4 of the present invention is directly connected with the output shaft of cabin body built-in motor, centre no longer needs switching device, does not need to be arranged in cabin external body, improves measuring accuracy; Described thrust torques sensor is divided into torque measurement section 3 and thrust measurement section 2, adopt bar type structure, can directly be arranged in the body of cabin, described thrust torques sensor is connected with screw propeller installation shaft 1, described screw propeller installation shaft 1 directly can install screw propeller, the thrust that described screw propeller produces and moment of torsion are directly measured by thrust torques sensor, eliminate tradition when thrust torques measured by boat instrument because axle system rubs the error caused.The through hole 5 that thrust measurement section 2 is arranged by two parts is formed, and the through hole of arrangement forms muscle sheet 9 and resists external force deformation, and the external force caused is measured by the second full-bridge foil gauge 6 be arranged in the middle of thrust measurement section 2.Torque measurement section 3 of the present invention strains, and the first full-bridge foil gauge posted by perforate 7 carries out corresponding torque measurement.
Cabin body built-in motor directly drives main shaft 4 to rotate, and thrust torques sensor provided by the present invention and screw propeller together rotate, and the thrust that screw propeller rotation produces and moment of torsion make sensor aperture part produce deformation and then be spread out of by signal by full-bridge foil gauge.Torque measurement section 3 is directly connected with the output shaft of cabin body built-in motor.Thrust measurement section 2 is directly connected with screw propeller installation shaft.Thrust measurement section 2 adopts the muscle sheet 9 of ordered arrangement to measure, and moment of torsion is measured by perforate 7 device.The thrust torques that screw propeller of the present invention produces directly is measured by thrust torques sensor, without any switching device.
For making the object, technical solutions and advantages of the present invention clearly, below for the technical scheme in the present invention is clearly and completely described.First, gondola test thrust torques sensor of the present invention opens designed by water and self-propulsion test for carrying out PODDED PROPULSOR specially, due to the special construction of PODDED PROPULSOR, carry out Study on hydrodynamic performance to it and need be different from general propulsion system, the key distinction is in arrangement and metering system.For this reason, the present invention adopts bar type structure especially, and as shown in Figure 1, 2, thrust torques sensor one end is directly connected with motor by main shaft 4, and the other end is then direct to be connected with screw propeller installation shaft 1.Three's coaxial rotating, the thrust that screw propeller produces and moment of torsion can directly be measured without any switching device, substantially increase measuring accuracy in reliability.Meanwhile, in order to meet the requirement of PODDED PROPULSOR cabin body size, the design of this measurement device section diameter only has 18mm, can meet various types of PODDED PROPULSOR dimensional requirement.
On metering system, the present invention is also different from the measuring method that general employing 5 pillars paste foil gauge measurement, and adopt the muscle sheet 9 being arranged in axis both sides to measure axial force, this mode improves the precision and stability of measurement greatly.The opening of torque measurement also selects upper and lower half opening, and the middle mode of the first full-bridge foil gauge that uses is measured, and is the requirement all meeting the test of PODDED PROPULSOR hydrodynamic performance in measuring accuracy or reliability.Directly can be arranged in the body of cabin to connect and use.
Should be noted in use, the present invention adopts waterproof construction to arrange, screw propeller installation shaft 1, thrust torques sensor is watertight structure, but consider that main shaft 4 is directly connected with cabin body built-in motor, and the water resistance of cabin body built-in motor is different, therefore in use adopts watertight to arrange.When screw propeller installation process carries out watertight layout, the mode of watertight axle sleeve should be adopted as far as possible, rotate in order to avoid affect screw propeller.Should first carry out drying and demarcating, in order to avoid affect measuring accuracy before the use.
Claims (1)
1. the thrust torques measurement mechanism of a gondola test, it is characterized in that: comprise cabin body built-in motor, the main shaft be connected with the output shaft of cabin body built-in motor, the thrust torques sensor be connected with main shaft, the screw propeller installation shaft be connected with thrust torques sensor and the screw propeller be sleeved in screw propeller installation shaft, described thrust torques sensor comprises torque measurement section and thrust measurement section, torque measurement section center is provided with perforate, the first full-bridge foil gauge is posted in perforate, in the symmetria bilateralis of described perforate, semi-circular recesses is set, the second full-bridge foil gauge is posted in described thrust measurement section centre position, the two ends of the second full-bridge foil gauge position one row through hole is set respectively and two described row through holes with the center of the second full-bridge foil gauge for symcenter is arranged in thrust measurement section, often the number of openings of row through hole has five at least, the axis of each through hole of first row by the center of the second full-bridge foil gauge to the equidistant translation in side of thrust measurement section, the axis of each through hole of secondary series by the center of the second full-bridge foil gauge to the equidistant translation of opposite side of thrust measurement section, muscle sheet is formed between each through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510054466.4A CN104634494B (en) | 2015-02-02 | 2015-02-02 | Thrust/torque measuring device for pod test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510054466.4A CN104634494B (en) | 2015-02-02 | 2015-02-02 | Thrust/torque measuring device for pod test |
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| Publication Number | Publication Date |
|---|---|
| CN104634494A true CN104634494A (en) | 2015-05-20 |
| CN104634494B CN104634494B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510054466.4A Expired - Fee Related CN104634494B (en) | 2015-02-02 | 2015-02-02 | Thrust/torque measuring device for pod test |
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| CN (1) | CN104634494B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021337A (en) * | 2015-07-30 | 2015-11-04 | 中国航空工业集团公司哈尔滨空气动力研究所 | Propeller driving rotation force measuring apparatus and force measuring method |
| CN106441687A (en) * | 2016-08-31 | 2017-02-22 | 中航电测仪器股份有限公司 | Aircraft driving wheel column force sensor |
| CN106969903A (en) * | 2017-04-12 | 2017-07-21 | 武汉理工大学 | A kind of model propeller push-pull effort and the sensor of the noiseless combination of torque measurement |
| CN107607239A (en) * | 2017-08-29 | 2018-01-19 | 武汉理工大学 | A kind of skeleton symbol impact force and torsion-testing frock |
| CN108254118A (en) * | 2018-01-24 | 2018-07-06 | 哈尔滨工业大学（威海） | Measurement electric power peculiar to vessel directly drives airscrew thrust and the device and method of torque |
| CN108469326A (en) * | 2018-02-28 | 2018-08-31 | 北京电子工程总体研究所 | A kind of micro- wrench of a force system measuring device and system |
| CN109060240A (en) * | 2018-09-17 | 2018-12-21 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of spacious hydrodynamic force instrument dynamic calibration apparatus and its scaling method |
| CN109186979A (en) * | 2018-09-17 | 2019-01-11 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of oblique driving type gondola experimental rig |
| CN109799019A (en) * | 2019-02-18 | 2019-05-24 | 哈尔滨工程大学 | A kind of off-axis formula of modularization changeable fluid is from the instrument that navigates |
| CN110657941A (en) * | 2019-08-27 | 2020-01-07 | 中国人民解放军海军工程大学 | Hydrodynamic performance testing device for shaftless pump jet propeller |
| CN112781766A (en) * | 2020-12-29 | 2021-05-11 | 上海空间推进研究所 | Rocket engine micro-thrust measuring system with micro-propulsion module and method |
| CN114018536A (en) * | 2021-10-14 | 2022-02-08 | 西安航天动力试验技术研究所 | System and method for measuring aerodynamic moment in wind tunnel test of aircraft |
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| CN204405239U (en) * | 2015-02-02 | 2015-06-17 | 哈尔滨工程大学 | A kind of thrust torques measurement mechanism of gondola test |
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- 2015-02-02 CN CN201510054466.4A patent/CN104634494B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20040211269A1 (en) * | 2003-04-24 | 2004-10-28 | Minebea Co., Ltd. | Device and method for measuring torque on an electric motor |
| JP2006091010A (en) * | 2004-09-20 | 2006-04-06 | Quantum Corp | Method and system for measuring motion torque of medium system, and device for testing rotating door, and method for manufacturing medium system, and method of directly measuring torque to be associated with the door |
| CN103604600A (en) * | 2013-12-09 | 2014-02-26 | 上海市东方海事工程技术有限公司 | Strain propeller electric test dynamometer |
| CN103969021A (en) * | 2014-05-09 | 2014-08-06 | 中国航天空气动力技术研究院 | Aircraft propeller thrust and torque measuring balance |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021337A (en) * | 2015-07-30 | 2015-11-04 | 中国航空工业集团公司哈尔滨空气动力研究所 | Propeller driving rotation force measuring apparatus and force measuring method |
| CN106441687A (en) * | 2016-08-31 | 2017-02-22 | 中航电测仪器股份有限公司 | Aircraft driving wheel column force sensor |
| CN106441687B (en) * | 2016-08-31 | 2019-07-12 | 中航电测仪器股份有限公司 | A kind of aircraft control wheel column force snesor |
| CN106969903A (en) * | 2017-04-12 | 2017-07-21 | 武汉理工大学 | A kind of model propeller push-pull effort and the sensor of the noiseless combination of torque measurement |
| CN107607239A (en) * | 2017-08-29 | 2018-01-19 | 武汉理工大学 | A kind of skeleton symbol impact force and torsion-testing frock |
| CN108254118B (en) * | 2018-01-24 | 2023-07-21 | 哈尔滨工业大学（威海） | Device and method for measuring thrust and torque of electric direct-drive propeller for ship |
| CN108254118A (en) * | 2018-01-24 | 2018-07-06 | 哈尔滨工业大学（威海） | Measurement electric power peculiar to vessel directly drives airscrew thrust and the device and method of torque |
| CN108469326A (en) * | 2018-02-28 | 2018-08-31 | 北京电子工程总体研究所 | A kind of micro- wrench of a force system measuring device and system |
| CN109060240A (en) * | 2018-09-17 | 2018-12-21 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of spacious hydrodynamic force instrument dynamic calibration apparatus and its scaling method |
| CN109186979A (en) * | 2018-09-17 | 2019-01-11 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of oblique driving type gondola experimental rig |
| CN109799019A (en) * | 2019-02-18 | 2019-05-24 | 哈尔滨工程大学 | A kind of off-axis formula of modularization changeable fluid is from the instrument that navigates |
| CN110657941B (en) * | 2019-08-27 | 2021-02-09 | 中国人民解放军海军工程大学 | Hydrodynamic performance testing device for shaftless pump jet propeller |
| CN110657941A (en) * | 2019-08-27 | 2020-01-07 | 中国人民解放军海军工程大学 | Hydrodynamic performance testing device for shaftless pump jet propeller |
| CN112781766A (en) * | 2020-12-29 | 2021-05-11 | 上海空间推进研究所 | Rocket engine micro-thrust measuring system with micro-propulsion module and method |
| CN112781766B (en) * | 2020-12-29 | 2022-10-18 | 上海空间推进研究所 | Rocket engine micro-thrust measuring system with micro-propulsion module and method |
| CN114018536A (en) * | 2021-10-14 | 2022-02-08 | 西安航天动力试验技术研究所 | System and method for measuring aerodynamic moment in wind tunnel test of aircraft |
| CN114018536B (en) * | 2021-10-14 | 2024-04-05 | 西安航天动力试验技术研究所 | System and method for measuring aerodynamic moment in aircraft wind tunnel test |
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| CN104634494B (en) | 2017-02-22 |
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