CN106017796A - Bracket for gravity center measuring system of parachute-recovery unmanned aerial vehicle - Google Patents
Bracket for gravity center measuring system of parachute-recovery unmanned aerial vehicle Download PDFInfo
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- CN106017796A CN106017796A CN201610505143.7A CN201610505143A CN106017796A CN 106017796 A CN106017796 A CN 106017796A CN 201610505143 A CN201610505143 A CN 201610505143A CN 106017796 A CN106017796 A CN 106017796A
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- worm
- internal thread
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- housing
- worm screw
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/02—Details of balancing machines or devices
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- Forklifts And Lifting Vehicles (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a bracket for a gravity center measuring system of a parachute-recovery unmanned aerial vehicle. With the bracket, a technical problem of poor universality of the existing unmanned aerial vehicle gravity center measuring device can be solved. According to the technical scheme, the bracket comprises rollers, leveling support legs, a pedestal, a support frame, a circular plate, a shell, a worm rod, a worm wheel, a hand wheel, a pressure sensor, an inner thread joint, a support rod, a level gauge and a digital vernier caliper. The plane of the pedestal is in a shape like an equilateral triangle; and the leveling support legs and the rollers are installed at the three top points of the pedestal. The support frame is installed on the upper surface of the pedestal; and the circular plate is installed on the support frame. The shell installed on the upper surface of the circular plate coats a worm wheel and worm rod mechanism formed by the worm rod and the worm wheel. A pressing head is installed at a threaded hole at the center of the pressure sensor; and the inner thread joint coats the pressure sensor. The level gauge is placed in a groove formed in the top of the support rod; and the digital vernier caliper is installed on the upper surface of the shell. According to the invention, technical problems that the gravity center measuring device of the parachute-recovery unmanned aerial vehicle can not move conveniently and the level can not be adjusted can be solved; and practicability is high.
Description
Technical field
The present invention relates to a kind of unmanned plane gravity center measurement device, particularly relate to a kind of parachuting and reclaim unmanned plane center of gravity measurement
System bracket.
Background technology
With reference to Fig. 1.The document Chinese utility model patent of CN201327433U " Authorization Notice No. be " discloses one
Plant the center mass measuring device of unmanned plane, including two U-shaped support beams 21, upper aluminum rack 22, force cell 23, water
Leveling ruler 24, adjustable support leg 25, lower aluminium support 26, displacement grating scale 27 and display instrument 28, U-shaped support beam 21 is solid
Being scheduled on upper aluminum rack 22, force cell 23 is arranged between upper aluminum rack 22 and lower aluminium support 26, displacement grating scale 27
Being arranged on the side of lower aluminium support 26, horizon rule 24 is arranged on the upper surface of lower aluminium support 26, adjustable support leg 25 and lower aluminum
Frame 26 is mechanically connected, and removably connects between display instrument 28 and U-shaped support beam 21, and force cell 23 is with aobvious
Show that between instrument 28, data wire is connected.
Unmanned plane to be measured is placed on U-shaped support beam 21 so that it is center of gravity is between U-shaped support beam 21, under inciting somebody to action
Aluminum frame 26 level-off measures the distance of distance of centre of gravity support beam 21, can record from unmanned plane head to afterbody along fuselage length
Center of gravity on direction.
Being not difficult to find out, there is following defect in unmanned plane center mass measuring device disclosed in document:
One, determine the center of gravity of unmanned plane it needs to be determined that position of centre of gravity on X, Y and three axles of Z axis, and this device is only
The center of gravity in the center of gravity along fuselage length direction, i.e. X-axis from unmanned plane head to afterbody can be recorded, it is impossible to measurement Y,
Position of centre of gravity on Z axis.
Two, be fixed on upper aluminum rack 22 due to two U-shaped support beams 21, between distance cannot regulate, so dress
The upper aluminum rack 22 put and the volume size that size limit the unmanned plane that can measure of lower aluminium support 26, do not have measurement
The ability of different size unmanned plane center of gravity.
Three, support owing to only relying on adjustable support leg 25, the heavy and mobile inconvenience of measurement apparatus, need to place unmanned plane
Time in measurement apparatus, the most extremely inconvenience of mobile unmanned plane or measurement apparatus.
Summary of the invention
In order to overcome the deficiency of existing unmanned plane gravity center measurement device poor practicability, the present invention provides a kind of parachuting to reclaim nothing
Man-machine center of gravity measurement system bracket.This bracket include roller, leveling supporting legs, base, bracing frame, disk, housing,
Worm screw, worm gear, handwheel, pressure transducer, internal thread, support bar, level indicator and electronic digital indicator.The described end
Seat plane is equilateral triangle, and three apex of base install leveling supporting legs and roller, and bracing frame is arranged on base
Surface, disk is arranged on bracing frame, and housing is arranged on disk upper surface, the snail of housing parcel worm and worm wheel composition
Worm and gear mechanism, the screwed hole at pressure transducer center installs pressure head, in pressure transducer is wrapped in by internal thread, level
Instrument is placed in the groove of support bar top, and electronic digital indicator is arranged on housing upper surface.Roller solves parachuting and returns
Receive unmanned plane gravity center measurement device move inconvenience problem, leveling supporting legs and level indicator compensate for parachuting reclaim unmanned plane without
The shortcoming of method regulation level, worm and worm wheel solve the problem needing to regulate the unmanned plane angle of pitch when measuring Z axis center of gravity,
Electronic digital indicator accurately and intuitively shows the change in elevation of support bar, accurately regulates the angle of pitch of unmanned plane, pressure
The gravity of unmanned plane measured accurately by sensor, practical.
The technical solution adopted for the present invention to solve the technical problems is: unmanned plane center of gravity measurement system is reclaimed in a kind of parachuting
With bracket, it is characterized in including roller 1, leveling supporting legs 2, base 3, bracing frame 4, disk 5, housing 6, worm screw
7, worm gear 8, handwheel 9, pressure transducer 10, internal thread 11, support bar 12, level indicator 13 and electronic digital indicator
14.Described base 3 plane is equilateral triangle, and three leveling supporting legs 2 are arranged on three apex of base 3,
Adjacent three leveling supporting legs 2 of base 3 lower surface install three rollers 1, and described leveling supporting legs 2 interlude axle has
External screw thread, is threadeded with base 3 by external screw thread, and bracing frame 4 is arranged on base 3 upper surface, and disk 5 is installed
On bracing frame 4, being connected with bracing frame 4 by three screws, housing 6 is arranged on disk 5 upper surface, housing 6
Parcel worm screw 7 and the worm-and-wheel gear of worm gear 8 composition, worm gear 8 rotates, it is achieved the up and down motion of worm screw 7, snail
There are two spacing keyways side, bar 7 top, makes internal thread 11 have activity space but cannot come off.Handwheel 9 and housing 6
Interior axle connects, and four, worm screw 7 top screwed hole coordinates with four through holes of pressure transducer 10, pressure transducer
The screwed hole at 10 centers installs pressure head, and internal thread 11 lower end is connected with worm screw 7, and pressure transducer 10 is wrapped by internal thread 11
In being rolled in, internal thread 11 upper end is connected with support bar 12 with female thread, and level indicator 13 is placed on support bar 12
In the groove at top, electronic digital indicator 14 is arranged on housing 6 upper surface, electronic digital indicator 14 display part
Side uses thin steel bar to be connected with internal thread 11.
The invention has the beneficial effects as follows: this bracket include roller, leveling supporting legs, base, bracing frame, disk, housing,
Worm screw, worm gear, handwheel, pressure transducer, internal thread, support bar, level indicator and electronic digital indicator.The described end
Seat plane is equilateral triangle, and three apex of base install leveling supporting legs and roller, and bracing frame is arranged on base
Surface, disk is arranged on bracing frame, and housing is arranged on disk upper surface, the snail of housing parcel worm and worm wheel composition
Worm and gear mechanism, the screwed hole at pressure transducer center installs pressure head, in pressure transducer is wrapped in by internal thread, level
Instrument is placed in the groove of support bar top, and electronic digital indicator is arranged on housing upper surface.Roller solves parachuting and returns
Receive unmanned plane gravity center measurement device move inconvenience problem, leveling supporting legs and level indicator compensate for parachuting reclaim unmanned plane without
The shortcoming of method regulation level, worm and worm wheel solve the problem needing to regulate the unmanned plane angle of pitch when measuring Z axis center of gravity,
Electronic digital indicator accurately and intuitively shows the change in elevation of support bar, accurately regulates the angle of pitch of unmanned plane, pressure
The gravity of unmanned plane measured accurately by sensor, practical.
With detailed description of the invention, the present invention is elaborated below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the structural representation of background technology unmanned plane center mass measuring device.
Fig. 2 is the structural representation that unmanned plane center of gravity measurement system bracket is reclaimed in parachuting of the present invention.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the part drawing of leveling supporting legs in Fig. 2.
Fig. 5 is the sectional view of disk in Fig. 2.
Fig. 6 is worm gear and worm engaging figure in Fig. 2.
Fig. 7 is positive stop key groove location schematic diagram in worm screw upper end in Fig. 2.
Fig. 8 is the sectional view of pressure transducer in Fig. 2.
Fig. 9 is the sectional view of internal thread in Fig. 2.
Figure 10 is the sectional view of support bar in Fig. 2.
Figure 11 is the top view of level indicator in Fig. 2.
Figure 12 is the enlarged drawing of electronic digital indicator in Fig. 2.
In figure, 1-roller, 2-leveling supporting legs, 3-base, 4-bracing frame, 5-disk, 6-housing, 7-worm screw, 8-snail
Wheel, 9-handwheel, 10-pressure transducer, 11-internal thread, 12-support bar, 13-level indicator, 14-electronic digital indicator, 21-U
Type support beam, 22-upper aluminum rack, 23-force cell, 24-horizon rule, 25-adjustable support leg, 26-lower aluminium support, 27-position
Shifted raster chi, 28-shows instrument.
Detailed description of the invention
Following example are with reference to Fig. 2～12.
Parachuting of the present invention is reclaimed unmanned plane center of gravity measurement system bracket and is included roller 1, leveling supporting legs 2, base 3, props up
Support 4, disk 5, housing 6, worm screw 7, worm gear 8, handwheel 9, pressure transducer 10, internal thread 11, support bar
12, level indicator 13 and electronic digital indicator 14.Wherein roller 1 is connected with base 3 by screw, leveling supporting legs 2
With base 3 for threadeding, bracing frame 4 lower end is connected with base 3, and bracing frame 4 upper end is connected with disk 5, shell
Body 6 wraps up worm screw 7 and the worm-and-wheel gear of worm gear 8 composition, and handwheel 9 is connected with the axle in housing 6, and pressure passes
Sensor 10 is connected with worm screw 7, and internal thread 11 wraps up pressure transducer 10 and is connected with worm screw 7, support bar 12 and internal thread
11 is threaded, and level indicator 13 is placed in the groove of support bar 12 top, electronic digital indicator 14 base and shell
Body 6 connects, and digital display part uses thin steel bar to be connected with internal thread 11.
Three leveling supporting legs 2 are arranged on three apex of base 3, and disk 5 is by three screws with bracing frame 4 even
Connecing, housing 6 is connected with disk 5 by four screws, and the worm gear 7 in handwheel 9 adjustment housings 6, level indicator 13 is put
Putting in the groove at support bar 12 top, electronic digital indicator 14 is arranged on the upper surface of housing 6, and display part makes
It is connected with internal thread 11 with thin steel bar.
Described leveling supporting legs 2, interlude axle has external screw thread, by rotating the level adjusting base 3.
The inwall of centre bore is downwardly extended by described disk 5, makes worm screw 7 more stable.
Described worm gear 8 engages with worm screw 7, and worm gear 8 rotates, it is achieved the up and down motion of worm screw 7.
The described spacing keyway in worm screw 7 upper end, the activity space certain to internal thread 11 and cannot coming off.
Described pressure transducer 10, is connected with worm screw 7 by the through hole of four circular array, and centre bore is with interior spiral shell
Stricture of vagina, measures the stress of internal thread 11 after installing pressure head.
Described internal thread 11, lower end is connected with worm screw 7, and is wrapped in by whole pressure transducer 10 interior, upper end band
There is female thread, threaded with support bar 12.
Described support bar 12, top has cylinder shape groove to place level indicator 13.
Described level indicator 13 is cylindrical.
Described electronic digital indicator 14, its pedestal is connected with housing 6.
When measuring unmanned plane center of gravity, three brackets utilize respective roller 1 to be moved to specify position, according to first three point type
Or rear bikini is placed, and is placed on by unmanned plane on support bar 12, check whether the level indicator 13 of three brackets is located
In level, with leveling supporting legs 2 by unmanned plane regulation to level, read the data of pressure transducer 10, logical
Cross the center of gravity being calculated the X of unmanned plane, Y-axis.The numerical value of record electronic digital indicator 14 display, according to the angle of pitch
Requirement, uses handwheel 9 to regulate the height of support bar 12, records the number of electronic digital indicator 14 display after having regulated
Value, the difference obtaining with initially showing numerical value, then read the data of now pressure transducer 10, unmanned by being calculated
The center of gravity of machine Z axis, so that it is determined that the position of centre of gravity of unmanned plane.
Claims (1)
1. unmanned plane center of gravity measurement system bracket is reclaimed in a parachuting, it is characterised in that: include roller (1), leveling
Supporting leg (2), base (3), bracing frame (4), disk (5), housing (6), worm screw (7), worm gear (8), hands
Wheel (9), pressure transducer (10), internal thread (11), support bar (12), level indicator (13) and electronic digital indicator
(14)；Described base (3) plane is equilateral triangle, and three leveling supporting legs (2) are arranged on base (3)
Three apex, adjacent three leveling supporting legs (2) of base (3) lower surface install three rollers (1), described tune
Having external screw thread on flat supporting leg (2) interlude axle, threadeded with base (3) by external screw thread, bracing frame (4) is pacified
Being contained in base (3) upper surface, disk (5) is arranged on bracing frame (4), by three screws and bracing frame (4)
Connecting, housing (6) is arranged on disk (5) upper surface, housing (6) parcel worm screw (7) and worm gear (8) composition
Worm-and-wheel gear, worm gear (8) rotate, it is achieved the up and down motion of worm screw (7), worm screw (7) side, top has
Two spacing keyways, make internal thread (11) have activity space but cannot come off；In handwheel (9) and housing (6)
Axle connects, and four, worm screw (7) top screwed hole coordinates with four through holes of pressure transducer (10), pressure transducer
(10) screwed hole at center installs pressure head, and internal thread (11) lower end is connected with worm screw (7), and internal thread (11) is by pressure
In sensor (10) is wrapped in, internal thread (11) upper end is connected with support bar (12) with female thread, level
Instrument (13) is placed in the groove at support bar (12) top, and electronic digital indicator (14) is arranged on housing (6)
Surface, the side of electronic digital indicator (14) display part uses thin steel bar to be connected with internal thread (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610505143.7A CN106017796B (en) | 2016-06-30 | 2016-06-30 | Drone center of unmanned aerial vehicle measuring system bracket is recycled in parachuting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610505143.7A CN106017796B (en) | 2016-06-30 | 2016-06-30 | Drone center of unmanned aerial vehicle measuring system bracket is recycled in parachuting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106017796A true CN106017796A (en) | 2016-10-12 |
| CN106017796B CN106017796B (en) | 2018-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610505143.7A Active CN106017796B (en) | 2016-06-30 | 2016-06-30 | Drone center of unmanned aerial vehicle measuring system bracket is recycled in parachuting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106017796B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207887A (en) * | 2019-12-10 | 2020-05-29 | 中船重工海空智能装备有限公司 | Unmanned aerial vehicle weight focus measuring device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5177998A (en) * | 1988-02-04 | 1993-01-12 | The United States Of America As Represented By The Secretary Of Transportation | Center of gravity and moments of inertia measurement device |
| CN101413840A (en) * | 2007-12-27 | 2009-04-22 | 奇瑞汽车股份有限公司 | Device and method for measuring object mass center |
| CN201302476Y (en) * | 2008-11-26 | 2009-09-02 | 中国第一汽车集团公司 | Mass and mass center measuring device of automobile steering room |
| CN201327433Y (en) * | 2008-11-28 | 2009-10-14 | 中国航天空气动力技术研究院 | Centroid measuring device for unmanned aerial vehicles |
| CN102829721A (en) * | 2012-08-17 | 2012-12-19 | 中国航天空气动力技术研究院 | Airplane detection platform and airplane detection method |
| CN103712745A (en) * | 2013-12-26 | 2014-04-09 | 哈尔滨工业大学 | Device and device for measuring gravity center parameters of helicopter rotor blades |
| CN105466635A (en) * | 2015-11-23 | 2016-04-06 | 上海卫星装备研究所 | Novel mass and center of mass test system used for spacecraft |
| CN205808620U (en) * | 2016-06-30 | 2016-12-14 | 西安爱生技术集团公司 | Unmanned plane center of gravity measurement system bracket is reclaimed in parachuting |
-
2016
- 2016-06-30 CN CN201610505143.7A patent/CN106017796B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5177998A (en) * | 1988-02-04 | 1993-01-12 | The United States Of America As Represented By The Secretary Of Transportation | Center of gravity and moments of inertia measurement device |
| CN101413840A (en) * | 2007-12-27 | 2009-04-22 | 奇瑞汽车股份有限公司 | Device and method for measuring object mass center |
| CN201302476Y (en) * | 2008-11-26 | 2009-09-02 | 中国第一汽车集团公司 | Mass and mass center measuring device of automobile steering room |
| CN201327433Y (en) * | 2008-11-28 | 2009-10-14 | 中国航天空气动力技术研究院 | Centroid measuring device for unmanned aerial vehicles |
| CN102829721A (en) * | 2012-08-17 | 2012-12-19 | 中国航天空气动力技术研究院 | Airplane detection platform and airplane detection method |
| CN103712745A (en) * | 2013-12-26 | 2014-04-09 | 哈尔滨工业大学 | Device and device for measuring gravity center parameters of helicopter rotor blades |
| CN105466635A (en) * | 2015-11-23 | 2016-04-06 | 上海卫星装备研究所 | Novel mass and center of mass test system used for spacecraft |
| CN205808620U (en) * | 2016-06-30 | 2016-12-14 | 西安爱生技术集团公司 | Unmanned plane center of gravity measurement system bracket is reclaimed in parachuting |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207887A (en) * | 2019-12-10 | 2020-05-29 | 中船重工海空智能装备有限公司 | Unmanned aerial vehicle weight focus measuring device |
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| Publication number | Publication date |
|---|---|
| CN106017796B (en) | 2018-11-09 |
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