CN206399592U - A kind of automatic detection and the aircraft center mass measuring device for eliminating side force - Google Patents
A kind of automatic detection and the aircraft center mass measuring device for eliminating side force Download PDFInfo
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- CN206399592U CN206399592U CN201621389327.3U CN201621389327U CN206399592U CN 206399592 U CN206399592 U CN 206399592U CN 201621389327 U CN201621389327 U CN 201621389327U CN 206399592 U CN206399592 U CN 206399592U
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Abstract
A kind of automatic detection and the aircraft center mass measuring device for eliminating side force, it includes three special triangle jack and a T-shaped link with universal wheel, the top of wherein each special triangle jack is provided with top dome screw rod, special triangle jack is connected by the bulb of top dome screw rod end with the ball-and-socket of aircraft, the T-shaped link is connected with the cam base plate of three Special jacks, and the guideway moving direction of two of which Special jack is conllinear, the guideway moving direction of the 3rd Special jack is vertical with the guide rail auxiliary direction of the two Special jacks.The sensor that the device is installed sensitive can know the horizontal side force situation suffered by heading screw rod, and can detect side force and eliminate side force.Three special triangle jack can be with coordination linkage, and band carries adjustment aircraft pose, being capable of barycenter situation of the survey aircraft under different positions and pose.The utility model compact conformation, the small, rigidity of occupation of land are big, easy transition, with good application prospect.
Description
Technical field
The present invention relates to a kind of aircraft center mass measuring device, the special jack of particularly a kind of aircraft.
Background technology
" supported at three point method " being used aircraft centroid measurement, common method has installs force cell additional on aircraft jack more
To obtain the support reaction of " " at 3 points, eventually pass theoretical calculation to draw aircraft barycenter.If wanting to know aircraft one
Position the barycenter information under appearance, it is desirable to which the measurement apparatus can not only know the support reaction of " " at 3 points, and require measurement
Device is capable of the pose of coordinated movement of various economic factors change object.
In practice, due to mismachining tolerance, rigging error, operating error, the presence of inevitable frictional force and due to fly
Machine stressing conditions change and cause deformation etc., can cause jack by side force；The side force not only influence measurement accuracy and
Experimental data repeatability, the also mechanical structure to jack produce harmful effect.When with jack jacking aircraft and being allowed to reach
During certain pose, because " 3 points " are in the subpoint distance change of horizontal plane, jack also can be by very big side force.
The aircraft jack commonly used at present in aircraft maintenance and bearing test has mechanical and fluid pressure type, leads to when weighing
Often force cell can be installed in extension bar rod end surface.But such aircraft jack can not know the multidimensional stress feelings of the strong point
Condition, can not adjust support member, therefore can not eliminate side force according to stressing conditions.When adjust gestures of object when, it is necessary to
Numerical digit personnel rearrange installation；Can not cooperative motion between such jack, it is impossible to which adjust automatically aircraft is accurate to up to certain
Pose, and this method relies on personnel's experience, is not carried out the automation of operation and security monitoring.
A kind of aircraft jack device that the A of Publication No. CN 105236292 Chinese patent is proposed, solves existing skill
The technical problem that very heavy heights of roofs is relatively low present in art, is inconvenient to fold and shrinks.But the aircraft jack can not be known
Jack and the multidimensional force-bearing situation at aircraft fulcrum, can not eliminate side force.Publication No. CN 204038956U China
A kind of Mechanical type airplane jack that patent is proposed, the device is by the Quick drive mechanism of fast servo mechanism and carries sleeve
Heavily loaded drive mechanism is separated so that fast servo mechanism can quickly reach target location so that the Mechanical type airplane thousand
The rise time on jin top can be greatly shortened.But the horizontal micro-displacement mechanism of the Mechanical type airplane jack does not have band-type brake dress
Put, it is less reliable.The device is also without force cell, it is impossible to effectively monitors and eliminates side force, it is very heavy that the invention is related to
Coordination linkage is unable between top and changes aircraft pose.
The content of the invention
It is an object of the invention to provide it is a kind of can adjust automatically aircraft reach certain pose and automatic detection and can disappear
Except the adjustable automatic detection of pose and the aircraft centroid measurement of elimination side force of the side force suffered by special triangle jack
Device.
The technical scheme of invention is as follows：
The present invention includes the special triangle jack of three structure identicals and a T-shaped link with universal wheel, wherein T
Type link is connected with the triangle bottom plate of three Special jacks, and the guideway moving direction of two of which Special jack
Collinearly, it is and vertical with the guideway moving direction of another Special jack；The top of each special triangle jack is provided with ball
Screw rod is pushed up, special triangle jack is connected by the bulb of top dome screw rod end with the ball-and-socket of aircraft；
The special triangle jack includes cam base plate, two groups of symmetrical and phases with universal wheel and leveling lower margin
Mutually parallel guideway, triangle slide unit, trapezoidal contiguous block, three weighing sensors, motor and decelerator, trapezoidal screw, screw,
Two bearing blocks, four guide rail locks, triangle joint frame, three flange form sensor pressure heads, three locking tapered sleeves, three long supports
Bar, three short support bars, servo jacking cylinder, anti-fall nut, level meter, force cell, top dome screw rod, switch boards；Wherein three
Angle slide unit bottom is connected by the guideway that two groups symmetrical and is parallel to each other with the plate face of cam base plate, one of which guide rail
It is located on the angle by T-shaped link side, two guide rails of another set are respectively provided on two other angle, four guide rail locks are logical
Cross its guide rail contacting surface to be respectively provided on the guide rail of each guideway, the upper surface of guide rail lock is connected in triangle slide unit bottom；
Accelerator and motor are located on the one of side of cam base plate, and screw is located at triangle slide unit bottom, screw and trapezoidal screw phase
Coordinate, its moving direction is identical with guideway moving direction, and trapezoidal screw two ends are respectively provided with one and are connected in cam base plate
Bearing block, one end of trapezoidal screw is connected with one of bearing block, and its other end is defeated through another bearing block and decelerator
Shaft is connected, and the input shaft of decelerator is connected with motor output shaft；A counterbore, counterbore are respectively provided with three angles of triangle slide unit
A weighing sensor is inside equipped with, triangle joint frame is located above triangle slide unit, three angles of triangle joint frame are to be equipped with
One through hole, three counterbores of the through hole and triangle slide unit are coaxial, and flange form sensor pressure head passes through the through hole of triangle joint frame,
And be connected by its flange and triangle joint frame, trapezoidal contiguous block is fixed on triangle slide unit, the through hole at trapezoidal contiguous block center
Coordinate with the cylindrical gap of flange form sensor pressure head, locking tapered sleeve is locked with being connected through a screw thread at the top of trapezoidal contiguous block
The circular conical surface of tapered sleeve at the top of the flange form sensor pressure head conical surface with fitting；Servo jacking cylinder is located at the center of triangle slide unit and vertical
In the plane of triangle slide unit, respectively there are three uniform hinge ears, the external part and bottom in the cylinder barrel external part of servo jacking cylinder and bottom
The direction of the hinge ear at end is identical, and the upper end of three struts of drawing money on credit and the hinge ear of servo jacking cylinder cylinder barrel external part are connected by bearing pin
Connect, its lower end is connected in trapezoidal contiguous block both sides by bearing pin with triangle joint frame；One end of three short support bars and servo top
The hinge ear for rising cylinder cylinder barrel bottom is connected by bearing pin, and its other end is connected with the hinge ear in the middle part of strut of drawing money on credit by bearing pin；Level
Instrument is located on servo jacking cylinder cylinder barrel；Anti-fall nut revolves and on the servo jacking cylinder extension bar with outer trapezoidal thread；Dynamometry
Sensor base is connected with servo jacking cylinder extension bar top, and top dome screw rod passes through the screw thread of bottom and the center of force cell
Screwed hole is connected；Switch board is located on triangle slide unit in the outer part.
The servo jacking cylinder is using two kinds of frame modes：
The first structure：Servo jacking cylinder is mechanical servo jacking cylinder, and it includes cylinder barrel, extension bar, two bearings, snails
Wheel, worm screw, fixing card lid, handwheel, L-type decelerator, main drive motor and displacement transducer；The L-type decelerator input axle with
Main drive motor output shaft connection, the mounting surface of the output shaft end of L-type decelerator is connected with the mounting surface of fixing card lid input shaft end,
The output end axle of L-type decelerator and one end of worm screw are connected, and the other end of worm screw is connected with handwheel, and worm and wheel coordinates, snail
The outer trapezoidal thread of the inner trapezoidal thread and extension bar of taking turns endoporus coordinates, and worm gear upper and lower end face passes through bearing and cylinder barrel and fixing card
Lid connection, worm gear drives extension bar to screw out under the support of bearing and under the driving of worm screw；Extension bar bottom band center
Displacement transducer is installed in hole, hole.
Second of structure：The servo jacking cylinder is with displacement transducer electro-hydraulic servo jacking cylinder.
The power that aircraft acts on heading screw rod acts on the title for being installed on triangle slide unit via the transmission of special triangle jack
Retransmit on sensor.When screw rod of heading a ball only receives power straight down, three weighing sensor real number registrations are identical.When heading spiral shell
When bar receives horizontal force, three hold registration of weighing will be no longer identical, device just can calculate side force according to the difference of registration
Size, the size linkage further according to side force is finely tuned special triangle jack and moved horizontally, to reduce side force to necessarily
Scope, the result further according to the force cell stretched out installed in special triangle jack in rod end surface show that the barycenter of aircraft is believed
Breath.
It is of the invention to be had the following advantages that compared with existing correlation technique：
1st, sensor sensitive can know the horizontal side force situation suffered by heading screw rod, and can detect side force simultaneously
Eliminate side force.
2nd, three special triangle jack can be with coordination linkage, and band carries adjustment aircraft pose, is convenient for measuring aircraft in difference
Barycenter situation under pose.
Brief description of the drawings
Fig. 1 is three-dimensional simplified schematic diagram of the invention；
Fig. 2 is the three-dimensional simplified schematic diagram of jack of the present invention；
Fig. 3 is the jack drive mechanism simplified schematic diagram of embodiment 1；
Fig. 4 is the jack weighing sensor schematic cross-sectional view of embodiment 1；
Fig. 5 is the three-dimensional simplified schematic diagram of jack of embodiment 2；
Fig. 6 is the jack drive mechanism simplified schematic diagram of embodiment 2.
In figure：1. special triangle jack, 2.T types link, 3. aircrafts, 1-1. cam base plates, 1-1-1. leveling lower margin,
1-1-2. universal wheels, 1-2. guideways, 1-3. triangles slide unit, the trapezoidal contiguous block 1-5. weighing sensors of 1-4., 1-6. motors and
Decelerator, 1-7. trapezoidal screws, 1-8. screws, 1-9. bearing blocks, 1-10. guide rails lock, 1-11. triangle joints frame, 1-12. flanges
Formula sensor pressure head, 1-13. lockings tapered sleeve, 1-14. are drawn money on credit the short support bar of strut, 1-15., 1-16. servo jackings cylinder, 1-16-
1. cylinder barrel, 1-16-2. extension bars, 1-16-3. bearings, 1-16-4. worm gears, 1-16-5. worm screws, 1-16-6. fixing cards lid, 1-
16-7. handwheels, 1-16-8.L type speed reducers, 1-16-9. it is main drive motor, 1-16-10. displacement transducers, the anti-fall nuts of 1-17.,
1-18. level meters, 1-19. force cells, 1-20. headings screw rod, 1-21. switch boards.
Embodiment
Embodiment 1
In the adjustable aircraft center mass measuring device schematic diagram of pose of the automatic detection shown in Fig. 1 and elimination side force, T
Type link 2 is collapsible link, and the T-shaped link is connected with the triangle bottom plate of three Special jacks 1, and wherein two
The guideway moving direction of individual Special jack is conllinear, and vertical with the guideway moving direction of another Special jack；Often
The top of individual special triangle jack is provided with top dome screw rod, bulb and aircraft that special triangle jack passes through top dome screw rod end
3 ball-and-socket is connected；
As shown in Figure 2, Figure 3 and Figure 4, cam base plate has universal wheel 1-1-2 and leveling lower margin 1-1-1, special triangle
Triangle slide unit 1-3 bottoms in jack pass through two groups symmetrical and is parallel to each other guideway 1-2 and cam base plate 1-1's
Plate face is connected, and one of which guide rail is located on the angle by T-shaped link side, and two guide rails of another set are respectively provided in addition
On two angles, four guide rail lock 1-10 are respectively provided at by its guide rail contacting surface on the guide rail of each guideway, guide rail lock
Upper surface is connected in triangle slide unit bottom；Accelerator and motor 1-6 are located on the one of side of cam base plate, and screw 1-8 is set
In triangle slide unit bottom, screw is engaged with trapezoidal screw 1-7, and its moving direction is identical with guideway moving direction, trapezoidal silk
Thick stick two ends are respectively provided with the bearing block being connected in a cam base plate 1-9, and one end of trapezoidal screw connects with one of bearing block
Connect, its other end is connected through another bearing block with reducer output shaft, and the input shaft of decelerator is connected with motor output shaft；
It is respectively provided with three angles of triangle slide unit in a counterbore, counterbore and is equipped with a weighing sensor 1-5, triangle joint frame 1-11
It is located above triangle slide unit, three angles of triangle joint frame are to be equipped with a through hole, three of the through hole and triangle slide unit sink
Hole is coaxial, and flange form sensor pressure head 1-12 passes through the through hole of triangle joint frame, and is connected by its flange and triangle joint frame,
Trapezoidal contiguous block 1-4 is fixed on triangle slide unit, between the through hole at trapezoidal contiguous block center and the cylinder of flange form sensor pressure head
Gap coordinates, and locking tapered sleeve 1-13 at the top of trapezoidal contiguous block with being connected through a screw thread, and the circular conical surface and flange form for locking tapered sleeve are passed
Fitted at the top of the sensor pressure head conical surface；Electro-hydraulic servo jacking cylinder 1-16 is located at the center of triangle slide unit and perpendicular to the flat of triangle slide unit
Respectively there is the direction for cutting with scissors ear of three uniform hinge ears, the external part and bottom face, the cylinder barrel external part of servo jacking cylinder and bottom
Identical, the hinge ear of three strut 1-14 that draw money on credit upper end respectively with servo jacking cylinder cylinder barrel 1-16-1 external parts is connected by bearing pin
Connect, its lower end is connected in trapezoidal contiguous block both sides by bearing pin with triangle joint frame；Support bar 1-15 three short one end is with watching
The hinge ear for taking jacking cylinder cylinder barrel bottom is connected by bearing pin, and its other end is connected with the hinge ear in the middle part of strut of drawing money on credit by bearing pin；
Level meter 1-18 is located on servo jacking cylinder cylinder barrel；Anti-fall nut 1-17 revolves and stretched in the servo jacking cylinder with outer trapezoidal thread
On rod 1-16-2；Force cell 1-19 bottoms are connected with servo jacking cylinder extension bar top, and top dome screw rod 1-20 passes through bottom
The screw thread in portion is connected with the screwed hole of centre of force cell；Switch board 1-21 is located on triangle slide unit in the outer part.
Embodiment 2
As shown in Figure 5, Figure 6, servo jacking cylinder is the mechanical servo jacking cylinder with displacement transducer, its L-type decelerator
1-16-8 inputs axle is connected with main drive motor 1-16-9 output shafts, the mounting surface and fixing card of the output shaft end of L-type decelerator
The mounting surface for covering 1-16-6 input shaft ends is connected, and the output end axle of L-type decelerator is connected with worm screw 1-16-5 one end, worm screw
The other end is connected with handwheel 1-16-7, and worm and wheel 1-16-4 coordinates, inner trapezoidal thread and the extension bar 1-16- of worm gear endoporus
2 outer trapezoidal thread coordinates, and worm gear upper and lower end face is connected by bearing 1-16-3 with cylinder barrel and fixing card lid, and worm gear is in bearing
Support is lower and under the driving of worm screw, drives extension bar to screw out；Displacement sensing is installed in extension bar bottom band centre bore, hole
Device 1-16-10.
Other parts and connected mode are same as Example 1.
Claims (3)
1. a kind of automatic detection and the aircraft center mass measuring device for eliminating side force, it includes three special triangles of structure identical
Jack and a T-shaped link with universal wheel, the top of each special triangle jack are provided with top dome screw rod, special triangle
Jack is connected by the bulb of top dome screw rod end with the ball-and-socket of aircraft, it is characterised in that：The T-shaped link and three are specially
It is connected with the triangle bottom plate of jack, and the guideway moving direction of two of which Special jack is conllinear, and and another
The guideway moving direction of Special jack is vertical；The special triangle jack includes three with universal wheel and leveling lower margin
Angle bottom plate, two groups of guideway, triangle slide unit, trapezoidal contiguous block, three weighing sensors, motors symmetrical and be parallel to each other
And decelerator, trapezoidal screw, screw, two bearing blocks, four guide rail locks, triangle joint frame, three flange form sensor pressure heads,
Three locking tapered sleeves, three struts of drawing money on credit, three short support bars, servo jacking cylinder, anti-fall nut, level meter, force cell,
Top dome screw rod, switch board；Its intermediate cam slide unit bottom passes through two groups symmetrical and is parallel to each other guideway and cam base plate
Plate face be connected, one of which guide rail is located on the angle by T-shaped link side, and two guide rails of another set are respectively provided at separately
On outer two angles, four guide rail locks are respectively provided at by its guide rail contacting surface on the guide rail of each guideway, and it is upper that the guide rail is locked
End face is connected in triangle slide unit bottom；Accelerator and motor are located on the one of side of cam base plate, and screw is located at triangle cunning
Platform bottom, screw is engaged with trapezoidal screw, and its moving direction is identical with guideway moving direction, and trapezoidal screw two ends are respectively provided with
One bearing block for being connected in cam base plate, one end of trapezoidal screw is connected with one of bearing block, and its other end is passed through
Another bearing block is connected with reducer output shaft, and the input shaft of decelerator is connected with motor output shaft；Three of triangle slide unit
It is respectively provided with angle in a counterbore, counterbore and is equipped with a weighing sensor, triangle joint frame is located above triangle slide unit, triangle
Three angles for connecting frame are to be equipped with a through hole, and three counterbores of the through hole and triangle slide unit are coaxial, flange form sensor pressure
Head passes through the through hole of triangle joint frame, and is connected by its flange and triangle joint frame, and trapezoidal contiguous block is fixed on triangle slide unit
On, the through hole at trapezoidal contiguous block center coordinates with the cylindrical gap of flange form sensor pressure head, locking tapered sleeve and trapezoidal contiguous block
Top be connected through a screw thread, circular conical surface and the flange form sensor pressure head conical surface top for locking tapered sleeve are fitted；Servo jacking cylinder
Positioned at the center of triangle slide unit and perpendicular to the plane of triangle slide unit, the cylinder barrel external part of servo jacking cylinder and bottom respectively have three
The direction of the hinge ear of uniform hinge ear, the external part and bottom is identical, upper end and the servo jacking cylinder cylinder barrel of three struts of drawing money on credit
The hinge ear of external part is connected by bearing pin, and its lower end is connected in trapezoidal contiguous block both sides by bearing pin with triangle joint frame；Three
One end of short support bar is connected with the hinge ear of servo jacking cylinder cylinder barrel bottom by bearing pin, in the middle part of its other end and strut of drawing money on credit
Hinge ear is connected by bearing pin；Level meter is located on servo jacking cylinder cylinder barrel；Anti-fall nut revolves and in watching with outer trapezoidal thread
Take on jacking cylinder extension bar；Force cell bottom is connected with servo jacking cylinder extension bar top, and top dome screw rod passes through bottom
Screw thread is connected with the screwed hole of centre of force cell；Switch board is located on triangle slide unit.
2. automatic detection according to claim 1 and the aircraft center mass measuring device for eliminating side force, it is characterised in that：Institute
Servo jacking cylinder is stated for mechanical servo jacking cylinder, it include cylinder barrel, extension bar, two bearings, worm gear, worm screw, fixing card lid,
Handwheel, L-type decelerator, main drive motor and displacement transducer；The L-type decelerator input axle connects with main drive motor output shaft
Connect, the mounting surface of the output shaft end of L-type decelerator is connected with the mounting surface of fixing card lid input shaft end, the output of L-type decelerator
One end of axle and worm screw is held to connect, the other end of worm screw is connected with handwheel, worm and wheel coordinates, the interior trapezoidal spiral shell of worm gear endoporus
The outer trapezoidal thread of line and extension bar coordinates, and worm gear upper and lower end face is connected by bearing with cylinder barrel and fixing card lid, and worm gear is in axle
Under the support held and under the driving of worm screw, extension bar is driven to screw out；Displacement is installed in extension bar bottom band centre bore, hole
Sensor.
3. automatic detection according to claim 1 and the aircraft center mass measuring device for eliminating side force, it is characterised in that：Institute
It is with displacement transducer electro-hydraulic servo jacking cylinder to state servo jacking cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621389327.3U CN206399592U (en) | 2016-12-16 | 2016-12-16 | A kind of automatic detection and the aircraft center mass measuring device for eliminating side force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621389327.3U CN206399592U (en) | 2016-12-16 | 2016-12-16 | A kind of automatic detection and the aircraft center mass measuring device for eliminating side force |
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| Publication Number | Publication Date |
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| CN206399592U true CN206399592U (en) | 2017-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621389327.3U Expired - Fee Related CN206399592U (en) | 2016-12-16 | 2016-12-16 | A kind of automatic detection and the aircraft center mass measuring device for eliminating side force |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706212A (en) * | 2016-12-16 | 2017-05-24 | 燕山大学 | Aircraft center-of-mass measurement device capable of realizing automatic detection and eliminating yawing force |
| CN108922040A (en) * | 2018-08-24 | 2018-11-30 | 河南省天天粮仓科技有限公司 | A kind of portable cereal vending machine |
| CN108945523A (en) * | 2018-09-04 | 2018-12-07 | 燕山大学 | Quadrangular can open up unit and can open up the space extension means of unit based on quadrangular |
| CN111207886A (en) * | 2020-01-19 | 2020-05-29 | 南京安科医疗科技有限公司 | Method for testing gravity center of mechanical part |
| CN112304408A (en) * | 2020-11-24 | 2021-02-02 | 贵州航天特种车有限责任公司 | Automatic measurement device for weight and gravity center of multi-model airplane |
-
2016
- 2016-12-16 CN CN201621389327.3U patent/CN206399592U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706212A (en) * | 2016-12-16 | 2017-05-24 | 燕山大学 | Aircraft center-of-mass measurement device capable of realizing automatic detection and eliminating yawing force |
| CN108922040A (en) * | 2018-08-24 | 2018-11-30 | 河南省天天粮仓科技有限公司 | A kind of portable cereal vending machine |
| CN108945523A (en) * | 2018-09-04 | 2018-12-07 | 燕山大学 | Quadrangular can open up unit and can open up the space extension means of unit based on quadrangular |
| CN108945523B (en) * | 2018-09-04 | 2023-07-25 | 燕山大学 | Quadrangular prism expandable unit and space expansion mechanism based on same |
| CN111207886A (en) * | 2020-01-19 | 2020-05-29 | 南京安科医疗科技有限公司 | Method for testing gravity center of mechanical part |
| CN112304408A (en) * | 2020-11-24 | 2021-02-02 | 贵州航天特种车有限责任公司 | Automatic measurement device for weight and gravity center of multi-model airplane |
| CN112304408B (en) * | 2020-11-24 | 2022-09-16 | 贵州航天特种车有限责任公司 | Automatic measurement device for weight and gravity center of multi-model airplane |
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Granted publication date: 20170811 Termination date: 20211216 |