CN103604555B - Five-degree-of-freedom follow-up brake moment measurement device - Google Patents
Five-degree-of-freedom follow-up brake moment measurement device Download PDFInfo
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- CN103604555B CN103604555B CN201310652766.3A CN201310652766A CN103604555B CN 103604555 B CN103604555 B CN 103604555B CN 201310652766 A CN201310652766 A CN 201310652766A CN 103604555 B CN103604555 B CN 103604555B
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Abstract
The invention belongs to aeronautical dynamics experimental technique, be specifically related to a kind of five-degree-of-freedom follow-up brake moment measurement device.Described five-degree-of-freedom follow-up brake moment measurement device comprises terminal pad, load piston rod, load urceolus, ball pivot hold-down support, torque sensor mounting disc and torque sensor, torgue measurement sensor is installed together by terminal pad and wheel brake, the torque sensor other end is connected with torque sensor force bearing disk, the ears sheet of force bearing disk is equipped with rotating shaft, brake torque is delivered on load piston rod and load urceolus by rotating shaft, and load urceolus is arranged on test-bed by ball pivot seat.The simple structure of the present invention meets the torgue measurement requirement of different structure size undercarriage wheels-locked testing, solve undercarriage dynamic test brake torque and measure a difficult problem, there is the advantage that structure simply, easy for installation, laborsaving saves time, versatility is good, trackability is good, reliability is high, security is good, measuring accuracy is high.
Description
Technical field
The invention belongs to aeronautical dynamics experimental technique, be specifically related to a kind of five-degree-of-freedom follow-up brake moment measurement device measured for brake torque in the test of undercarriage wheel braking and other dynamic tests.
Background technology
All undercarriages all will brake in sliding race process.Therefore, wheel braking test ensures that aircraft is sliding to run one of important motivity pilot project of safety no matter be the military secret or civil aircraft newly developed, all will carry out wheel braking test, and meanwhile, wheels-locked testing is also one of important means of the inspection brake gear quality of production.Its objective is the requirement that wheel brake system will be examined can to meet brake energy and braking distance, guarantee that aircraft is sliding and run safety.The test of undercarriage wheel braking is carried out on special dynamic test stand.This large-scale experiment equipment is when carrying out the wheels-locked testing of band undercarriage, want the stress such as load, speed, brake of kinetic energy when simulated aircraft is sliding to be run, undercarriage wheel, and brake torque is one of most important parameters of this dynamic test measurement, it is the foundation calculating brake energy.
Measure brake torque during the test of undercarriage wheel braking, first must have and a kind ofly can be arranged on different attitude undercarriage and the brake torque measurement mechanism of landing gear structure distortion and rigid displacement requirement can be met.Because various aircraft landing gear structures is different, gear test state has various change, and stressed rear malformation, displacement are also different, measure brake torque, bring very large difficulty to measurement under various structure dynamics change with space compound motion condition.Common way adopts the method for paster on undercarriage wheel wheel shaft or other indirect methods to measure.Due to the stressed more complicated of wheel wheel shaft, one be the strain of its brake torque is not principal strain, and other strain signals are much smaller relatively, and two is that foil gauge distance brake flange heat reservoir is near, brake produces high temperature and makes strain signal produce very large drift, and three is be difficult to demarcate.So the method is more difficult accurately to be measured brake torque, this is also one of technical bottleneck of undercarriage wheel braking test.
Summary of the invention
The object of the invention: in order to solve a band undercarriage brake torque kinetic measurement difficult problem, the invention provides a kind of five-degree-of-freedom follow-up brake moment measurement device, adopt the structural approach that torque sensor is directly measured, requirement is measured in the wheels-locked testing meeting various different structure undercarriage, also can be used for simple wheel braking test.
Technical scheme of the present invention: a kind of five-degree-of-freedom follow-up brake moment measurement device, it comprises terminal pad, load piston rod, load urceolus, ball pivot hold-down support, torque sensor mounting disc and torque sensor, torgue measurement sensor is installed together by terminal pad and wheel brake, the torque sensor other end is connected with torque sensor force bearing disk, the ears sheet of force bearing disk is equipped with rotating shaft, brake torque is delivered on load piston rod and load urceolus by rotating shaft, and load urceolus is arranged on test-bed by ball pivot holder.
The variable-length that during test, brake torque is made up of load piston rod 5 and load urceolus 6, the joist support of angle are subject to; The malformation of undercarriage and wheel and wheel displacement by between the rotating shaft of this device, piston rod, urceolus, ball pivot mutually follow-up shift meet; Relative motion between load piston rod, load urceolus meets displacement of the lines requirement, and universal spherical joint meets each to deflection swing, and rotating shaft meets the yawing rotation of wheel.
Technique effect of the present invention: the simple structure of the present invention meets the torgue measurement requirement of different structure size undercarriage wheels-locked testing, solves undercarriage dynamic test brake torque and measures a difficult problem.There is the advantage that structure simply, easy for installation, laborsaving saves time, versatility is good, trackability is good, reliability is high, security is good, measuring accuracy is high.Therefore, practicality is better, be easy to apply, requirement is measured in the wheels-locked testing that can meet various different structure undercarriage, also can be used for simple wheel braking test, be widely used in other wheel dynamic tests tests such as various military secret, the wheels-locked testing of civil aircraft undercarriage and automobile, there is larger practical value and important social effect.
Accompanying drawing explanation
Fig. 1 is the front view of five-degree-of-freedom follow-up brake moment measurement device of the present invention;
Fig. 2 is the vertical view of five-degree-of-freedom follow-up brake moment measurement device of the present invention;
In figure: 1-tests wheel, 2-braking mechanism terminal pad, 3-terminal pad bolt hole, 4-force bearing disk and bolt hole, 5-load piston rod, 6-load urceolus, 7-hold-down support, 8-universal spherical joint, 9-force bearing disk ears, 10-rotating shaft, 11-torque sensor.
Embodiment
Below in conjunction with embodiment and accompanying drawing to further instruction of the present invention:
Please refer to Fig. 1 and Fig. 2, wherein, Fig. 1 is the front view of five-degree-of-freedom follow-up brake moment measurement device of the present invention; Fig. 2 is the vertical view of five-degree-of-freedom follow-up brake moment measurement device of the present invention.Five-degree-of-freedom follow-up brake moment measurement device of the present invention comprises braking mechanism terminal pad, load piston rod, load urceolus, ball pivot hold-down support, torque sensor mounting disc and torque sensor.Torgue measurement sensor 11 is installed together by terminal pad 2 and wheel brake, and terminal pad 2 mainly transmits brake torque, plays heat-blocking action at brake block adstante febre simultaneously.The torque sensor other end is connected with torque sensor force bearing disk 4, and the ears sheet 9 of force bearing disk 4 is equipped with rotating shaft 10, and brake torque is delivered on load piston rod 5, load urceolus 6 by rotating shaft 10, and load urceolus 6 is arranged on test-bed by ball pivot seat 7.Installation can take different installation according to actual needs, and the variable-length that during test, brake torque is made up of load piston rod 5 and load urceolus 6, the joist support of angle are subject to.The malformation of undercarriage and wheel and wheel displacement by between the rotating shaft of this device, piston rod, urceolus, ball pivot mutually follow-up shift meet.Relative motion between load piston rod 5, load urceolus 6 meets displacement of the lines requirement, universal spherical joint meets each to deflection swing, rotating shaft meets the yawing rotation of wheel, the space that is combined in of above-mentioned motion forms other five degree of freedom (X except wheel sense of rotation bears brake torque, Y, Z, θ x, θ z) servomechanism.Thus ensure no matter how Landing Gear System mechanism changes the requirement that can meet Measurement accuracy brake torque.
During undercarriage wheels-locked testing, need to take rational mounting means according to different undercarriage shelf structure.
The simple structure of the present invention meets the torgue measurement requirement of different structure size undercarriage wheels-locked testing, solves undercarriage dynamic test brake torque and measures a difficult problem.There is the advantage that structure simply, easy for installation, laborsaving saves time, versatility is good, trackability is good, reliability is high, security is good, measuring accuracy is high.Therefore, practicality is better, is easy to apply, and can be widely used in other wheel dynamic tests tests such as various undercarriage wheels-locked testing and automobile, have larger practical value and important social effect.
Claims (1)
1. a five-degree-of-freedom follow-up brake moment measurement device, it is characterized in that, comprise terminal pad (2), load piston rod (5), load urceolus (6), ball pivot hold-down support (7), torque sensor mounting disc and torque sensor (11), torque sensor is installed together by terminal pad (2) and wheel brake, the torque sensor other end is connected with torque sensor force bearing disk (4), the ears sheet (9) of force bearing disk (4) is equipped with rotating shaft (10), brake torque is delivered on load piston rod (5) and load urceolus (6) by rotating shaft (10), load urceolus (6) is arranged on test-bed by ball pivot holder (7), the variable-length that during test, brake torque is made up of load piston rod (5) and load urceolus (6), the joist support of angle is subject to, the malformation of undercarriage and wheel and wheel displacement by between the rotating shaft of this device, piston rod, urceolus, ball pivot mutually follow-up shift meet, relative motion between load piston rod, load urceolus meets displacement of the lines requirement, and universal spherical joint meets each to deflection swing, and rotating shaft meets the yawing rotation of wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310652766.3A CN103604555B (en) | 2013-12-04 | 2013-12-04 | Five-degree-of-freedom follow-up brake moment measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310652766.3A CN103604555B (en) | 2013-12-04 | 2013-12-04 | Five-degree-of-freedom follow-up brake moment measurement device |
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| Publication Number | Publication Date |
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| CN103604555A CN103604555A (en) | 2014-02-26 |
| CN103604555B true CN103604555B (en) | 2015-12-02 |
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| CN201310652766.3A Active CN103604555B (en) | 2013-12-04 | 2013-12-04 | Five-degree-of-freedom follow-up brake moment measurement device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596697B (en) * | 2014-11-27 | 2017-02-22 | 西安航空制动科技有限公司 | Undercarriage wheel brake kinetic moment measuring method |
| CN105547668B (en) * | 2015-12-10 | 2019-06-28 | 中国飞机强度研究所 | A kind of aero-brake performance testing device |
| CN108340357B (en) * | 2018-04-24 | 2023-04-07 | 中国科学院地球化学研究所 | Five-degree-of-freedom floating compensation device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100588927C (en) * | 2008-03-05 | 2010-02-10 | 中南大学 | Airplane wheel brake auxiliary structure strength testing apparatus |
| CN101604490B (en) * | 2008-06-11 | 2013-01-16 | 北京航空航天大学 | Semi-physical simulation platform structure of airplane brake system |
| JP5179999B2 (en) * | 2008-08-12 | 2013-04-10 | 株式会社神戸製鋼所 | Tire tester drive control method and tire tester |
| CN101451894B (en) * | 2008-12-24 | 2010-12-01 | 昊华南方(桂林)橡胶有限责任公司 | Brake testing method and brake testing machine |
| CN201837529U (en) * | 2010-10-11 | 2011-05-18 | 山东交通学院 | Combination property test-bed for disc brake |
| FR2973761B1 (en) * | 2011-04-05 | 2013-04-05 | Messier Bugatti | METHOD OF BRAKE TORQUE DISTRIBUTION BETWEEN BRAKE WHEELS CARRIED BY AT LEAST ONE AIRCRAFT ENGINEER |
| CN102507218B (en) * | 2011-11-11 | 2014-03-12 | 北京化工大学 | Mechanical arm type simulation test platform for tire comprehensive performances |
| CN202693185U (en) * | 2012-07-13 | 2013-01-23 | 哈尔滨飞机工业集团有限责任公司 | Equipment for measuring braking torque of aircraft wheel |
| CN103207042B (en) * | 2013-04-24 | 2015-04-29 | 哈尔滨飞机工业集团有限责任公司 | Test device for detecting brake moment of helicopter |
| CN203324024U (en) * | 2013-05-20 | 2013-12-04 | 西北农林科技大学 | Test device of biased shaft driving wheel |
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