CN204301674U - A kind of measurement mechanism of connecting rod amount of deflection - Google Patents
A kind of measurement mechanism of connecting rod amount of deflection Download PDFInfo
- Publication number
- CN204301674U CN204301674U CN201420596199.4U CN201420596199U CN204301674U CN 204301674 U CN204301674 U CN 204301674U CN 201420596199 U CN201420596199 U CN 201420596199U CN 204301674 U CN204301674 U CN 204301674U
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- China
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- slide rail
- connecting rod
- measurement
- deflection
- alignment pin
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
A measurement mechanism for connecting rod amount of deflection, has a measurement mechanism, is made up of tolerance slide rail, survey mass and alignment pin, and the reference measurement face of survey mass is parallel with the alignment pin on tolerance slide rail, measures fast follow-up point corresponding on the Measurement scales of tolerance slide rail; A plumb line is connected as measuring basis line from the measuring basis of connecting rod; By fixing on the measured hole of the alignment pin of measurement mechanism insertion connecting rod, the Measurement scales reading corresponding according to the pointer on survey mass judges the amount of deflection attitude of this connecting rod.
Description
Technical field
The application relates to aircraft manufacturing, and ground service is safeguarded, the detection technique of the career fields such as maintenance of equipment, specifically a kind of measurement mechanism of connecting rod amount of deflection.
Background technology
Numerously on aircraft all linkage be can apply by control member, vitals and the control systems thereof such as the undercarriage of aircraft, aileron, wing flap, rudder, elevator comprised.In each flight course of aircraft, these linkages are moving repeatedly under the manipulation of pilot all, and the stressed member of linkage is subject to external shock frequently, and the intact situation of these stressed members is just directly connected to the safety problem of aircraft flight.Especially main landing gear subjects most of weight of aircraft, is that aircraft safety takes off and one of the parts of most critical that land.Main landing gear and control system thereof are under impact force action repeatedly, and its linkage, once there is the security hidden troubles such as distortion or damage, must be got rid of in time.So each airplane all wants the deflection of the control link of close inspection main landing gear when dispatching from the factory and paying, aircraft ground crew will carry out deflection inspection to the main landing gear control link after each landing of aircraft, to guarantee flight safety equally.
In the ground service of aircraft is safeguarded, needing the deflection checking main landing gear compartment gate operator connecting rod, is exactly mainly by connecting rod deflection metrology, to determine that the amount of deflection deformation of connecting rod is whether in allowed band.Although led the theoretical principle point (i.e. theoretical attitude value) having indicated connecting rod in cabin, but datum mark and each joint of connecting rod are all spatial relationships, and MLG Door control link mechanism is mostly installed in the narrow spaces such as undercarriage nacelle, also be densely covered with various pipeline cable in this space, general deflection measuring apparatus is all difficult to put to good use.
The measuring method of prior art to this deflection value is: by aircaft configuration manual bracing wire structure measuring surface, and select particular conversion point to carry out pure hand dipping; This measuring method has higher requirements to operator, and accuracy is not high, be difficult to determine that whether it is overproof, the measuring method existing defects in accuracy therefore, and operability is not strong when the high-low limit of measured value close to required value.
Summary of the invention
The object of the application is the device providing a kind of connecting rod amount of deflection, in small space, can solve and carry out deflection metrology to the control link mechanism of aircraft main landing gear, and the metering system adopted will be tried one's best and efficiently facilitated.
A kind of deflection metrology measurement mechanism of connecting rod, by tolerance slide rail, survey mass and alignment pin composition, the upper side and lower side of tolerance slide rail has the chute be parallel to each other respectively, its leading flank is provided with Measurement scales, tolerance slide rail is also provided with an alignment pin, the side of described survey mass is reference measurement face, this measurement is embedded on tolerance slide rail by upper sliding block soon, measure the housing screw being also provided with pressed slider soon, the reference measurement face of survey mass is parallel with the alignment pin on tolerance slide rail, the front end that this measurement is fast is also fixed with follow-up point, this pointer is corresponding on the Measurement scales of tolerance slide rail.
During use, first connect a plumb line as measuring basis line from the measuring basis of connecting rod; Again by fixing on the measured hole of the alignment pin of measurement mechanism insertion connecting rod, slip survey mass makes reference measurement face and measuring basis line parallel fit; The last Measurement scales reading corresponding according to the pointer on survey mass judges the amount of deflection attitude of this connecting rod.
The beneficial effect of the application is: 1) by special measurement mechanism, be applicable to measure pull bar deflection value in the landing gear nacelle of narrow space, operability obtains huge leap forward, is easy to measure, thoroughly solves the deflection value instability problem produced because different operating person measures; 2) measurement mechanism flexible structure, measurement result is obviously easily observed by Measurement scales performance, solves the blind area being difficult to when the high-low limit of measured value close to required value determine that whether it is overproof.
Below in conjunction with embodiment accompanying drawing, the application is described in further detail:
Accompanying drawing explanation
Fig. 1 is the deflection metrology method signal of the connecting rod of the application
Fig. 2 is the deflection measuring apparatus signal of the connecting rod of the application
Fig. 3 is the structural profile signal of Fig. 2
Number description: 1 connecting rod, 2 measured holes, 3 front end hinges, 4 plumb lines, 5 tolerance slide rail, 6 survey mass, 7 datum levels, 8 alignment pins, 9 Measurement scales, 10 pointers, 11 chutes, 12 housing screws, 13 slide blocks
Detailed description of the invention
See accompanying drawing, the deflection measuring apparatus of the application can in the small space of main landing gear, and Quick Measuring measures main landing gear control link and whether there is the deformation situation exceeding safety standard.
First, see Fig. 2, Fig. 3, the structure of measurement mechanism, by tolerance slide rail 5, survey mass 6 and alignment pin 8 form, tolerance slide rail is the matrix of a tabular, the upper side and lower side of tolerance slide rail has the chute 11 be parallel to each other respectively, in enforcement, this chute preferably V-shaped valley, upper hopper chute is the V-shaped valley of opening upwards, gliding groove is the V-shaped valley that Open Side Down, V-shaped valley slides for survey mass or fixes on tolerance slide rail, the leading flank of tolerance slide rail is provided with Measurement scales 9, zero groove of rule and alignment pin axis coinciding, measurement numerical value can be directly read on the scale after detection, tolerance slide rail is also provided with an alignment pin 8, this alignment pin 8 is the bearing pins being screwed onto on tolerance slide rail, the diameter of alignment pin mates with the aperture, location on measured connecting rod, survey mass 6 is inlayed by upper sliding block 13 and tolerance slide rail 5 and is connected as one, separately have a housing screw 12 can by survey mass 6 relative to tolerance slide rail locking position, the side of survey mass 6 is reference measurement face 7, the reference measurement face 7 of survey mass is parallel with the axis of the alignment pin 8 on tolerance slide rail, the front end that this measurement is fast is also fixed with follow-up point 10, this pointer 10 correspondence is on the Measurement scales 9 of tolerance slide rail., this plumb line is through the extended line of the front end hinge point shaft of connecting rod
When measuring the amount of deflection of main landing gear connecting rod, first a plumb line 4 is connected as measuring basis line from the measuring basis of connecting rod 1, usually using the front end hinge 3 of connecting rod as measuring basis place, the plumb line 4 therefore hung has to pass through the extended line of the front end hinge point shaft of connecting rod; Fixing on the measured hole 2 again alignment pin 8 of measurement mechanism being inserted connecting rod, this measured hole is located at the hinge place, rear end of connecting rod usually, after slip survey mass 6 makes reference measurement face 7 laminating parallel with measuring basis plumb line 4, the fast relative position with measuring slide rail by housing screw 10 fixation measuring; Finally the connecting rod of measurement mechanism from main landing gear is taken off, opening wide the reading of place according to the Measurement scales 9 of pointer 10 correspondence on survey mass 6 and judge the amount of deflection attitude of this connecting rod.
The application's structure is simple, and small volume and less weight, the reverse deflection metrology way of employing is simple and easy to do.Especially in the small space of main landing gear, the detection to control link can be completed handyly, not need other aid measurer, also not need the on-the-spot fixed platform that testing tool is provided, really reach testing goal rapidly and efficiently.Can promote at transporation by plane and outfield ground service, to improve ground service operating efficiency.
Claims (2)
1. the measurement mechanism of a connecting rod amount of deflection, it is characterized in that, by tolerance slide rail, survey mass and alignment pin composition, the upper side and lower side of tolerance slide rail has the chute be parallel to each other respectively, its leading flank is provided with Measurement scales, tolerance slide rail is also provided with an alignment pin, the side of described survey mass is reference measurement face, this measurement is embedded on tolerance slide rail by upper sliding block soon, measure the housing screw being also provided with pressed slider soon, the reference measurement face of survey mass is parallel with the alignment pin on tolerance slide rail, the front end that this measurement is fast is also fixed with follow-up point, this pointer is corresponding on the Measurement scales of tolerance slide rail.
2. the measurement mechanism of connecting rod amount of deflection as claimed in claim 1, is characterized in that, the chute of described tolerance slide rail and measure fast on slide block there is V-arrangement chimeric surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420596199.4U CN204301674U (en) | 2014-10-15 | 2014-10-15 | A kind of measurement mechanism of connecting rod amount of deflection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420596199.4U CN204301674U (en) | 2014-10-15 | 2014-10-15 | A kind of measurement mechanism of connecting rod amount of deflection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204301674U true CN204301674U (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420596199.4U Expired - Fee Related CN204301674U (en) | 2014-10-15 | 2014-10-15 | A kind of measurement mechanism of connecting rod amount of deflection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184340A (en) * | 2021-12-10 | 2022-03-15 | 凌云科技集团有限责任公司 | Method and platform for measuring deflection of strut of landing gear of airplane |
-
2014
- 2014-10-15 CN CN201420596199.4U patent/CN204301674U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184340A (en) * | 2021-12-10 | 2022-03-15 | 凌云科技集团有限责任公司 | Method and platform for measuring deflection of strut of landing gear of airplane |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20171015 |
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| CF01 | Termination of patent right due to non-payment of annual fee |