CN209342287U - Rotational inertia measuring device - Google Patents
Rotational inertia measuring device Download PDFInfo
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- CN209342287U CN209342287U CN201821939814.1U CN201821939814U CN209342287U CN 209342287 U CN209342287 U CN 209342287U CN 201821939814 U CN201821939814 U CN 201821939814U CN 209342287 U CN209342287 U CN 209342287U
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- measuring device
- rotating disc
- wirerope
- rotational inertia
- inertia measuring
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Abstract
This application discloses a kind of rotational inertia measuring devices, including horizontally disposed rotating disc, there are three stay wire sensors for setting on rotating disc, each stay wire sensor draws wirerope, every wirerope is provided with hanging device far from one end of rotating disc, by the way that three wirerope are arranged, every wirerope is provided with hanging device far from one end of rotating disc, hanging device can directly mount testee, structure is simple, manufacturing cost is low, and rotary inertia can be measured by the method for three-line pendulum, and measurement result is accurate.
Description
Technical field
The utility model relates generally to measure articles field, and in particular to rotation inerttia field, more particularly to it is a kind of
Rotational inertia measuring device.
Background technique
Rotary inertia is the physical quantity for characterizing article for rotation inertia size, is research, design, control article for rotation movement rule
The important Engineering technical parameters of rule, therefore the rotary inertia for measuring object has important practical significance.Not for geometry
The object of rule, non-uniform mass, the rotary inertia for calculating them is extremely difficult, usually experimentally determines.Often
Experimental method has three suspension wire methods (being also three-line pendulum method), Inertia Based on Torsion Pendulum Method, moment of inertia testing apparatus etc..Center of gravity and rotary inertia are
The important parameter of unmanned plane mathematical modeling and flight performance calculation needs more to improve the stability of UAV Flight Control
The actual position of centre of gravity of unmanned plane and the rotary inertia parameter along the rotation of each axis are measured well.
Current existing rotation inerttia instrument dead weight is big, expensive；Three suspension wire methods and Inertia Based on Torsion Pendulum Method are directed to mostly
The object of small size, and most of measurement methods are placed on object to be measured on one pallet, and simple harmonic motion is then done,
But for large-scale unmanned plane, unmanned plane is measured respectively around X, Y, the movement of Z axis is in irregular shape to be difficult to carry out clamping to put
It sets on lower disc.And the universal way of traditional measurement unmanned plane is to fix unmanned plane on the ceiling by rope, it is light to dial
Unmanned plane makes it do simple harmonic motion, records number of revolutions within a certain period of time, the method is at low cost practical but error is larger, together
Shi Wufa accurately finds position of centre of gravity accurately.Furthermore it needs that ruler is artificially used to go measurement length, it is cumbersome.
Utility model content
In view of drawbacks described above in the prior art or deficiency, bulky objects, structure letter can be measured by being intended to provide one kind
Single, the accurate rotational inertia measuring device of measurement.
In a first aspect, the rotational inertia measuring device of the utility model, including horizontally disposed rotating disc, set on rotating disc
It sets there are three stay wire sensor, each stay wire sensor draws wirerope, and every wirerope is all provided with far from one end of rotating disc
It is equipped with hanging device.
According to technical solution provided by the embodiments of the present application, by the way that three wirerope are arranged, every wirerope is far from rotation
One end of disk is provided with hanging device, and hanging device can directly mount testee, and structure is simple, and manufacturing cost is low, energy
The method by three-line pendulum is reached to measure rotary inertia, measurement result is accurate, and being able to solve existing measuring instrument, structure is complicated, system
Make problem at high cost, that precision is low.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is that the rotational inertia measuring device measurement unmanned plane of the embodiments of the present invention shows around the structure that Z axis rotates
It is intended to；
Fig. 2 is that the rotational inertia measuring device measurement unmanned plane of the embodiments of the present invention shows around the structure that X axis rotates
It is intended to；
Fig. 3 is that the rotational inertia measuring device measurement unmanned plane of the embodiments of the present invention shows around the structure that Y axis rotates
It is intended to；
Fig. 4 is the rotation plate edge of the rotational inertia measuring device of the embodiments of the present invention and the knot of wirerope cooperation
Structure schematic diagram；
Fig. 5 is the structure simplification figure of the rotational inertia measuring device of the embodiments of the present invention.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining relevant utility model, rather than the restriction to the utility model.It further needs exist for illustrating
, part relevant to utility model is illustrated only for ease of description, in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 to 4, the rotational inertia measuring device of the utility model, including horizontally disposed rotating disc 10 are please referred to, is rotated
There are three stay wire sensors 12, each stay wire sensor 12 to draw wirerope 20 for setting on disk 10, and every wirerope 20 is separate
One end of rotating disc 10 is provided with hanging device.
In the embodiments of the present invention, by the way that three wirerope, the one end of every wirerope far from rotating disc is arranged
Be provided with hanging device, hanging device can directly mount testee, testee can with but not only unmanned plane, can
With the position by adjusting hanging device mounting unmanned plane, to adjust the posture of unmanned plane, unmanned plane is measured respectively around X-axis, Y
The rotary inertia of axis, Z axis, structure is simple, and manufacturing cost is low, and rotary inertia can be measured by the method for three-line pendulum, measurement
As a result accurate.Hanging device can be with but not just for hook, sucker etc., and hanging device can be detachable by unmanned plane and wirerope
Ground is fixedly connected, and when needing to fix unmanned plane on a steel cord, hanging device is fixed with unmanned plane, is being needed unmanned plane
When separating with wirerope, hanging device is detached from unmanned plane, convenient for fixed and fractionation, improves the speed of unmanned plane rotation inerttia
Degree, meanwhile, additional fixed frame is not needed to fix testee, improves the versatility of rotational inertia measuring device.Bracing wire
Mounting point the distance between of the sensor for the position of measuring steel wire rope and rotating disc EDGE CONTACT to testee, convenient for obtaining
Measurement data, reduce the difficulty of unmanned plane rotation inerttia, improve unmanned plane rotation inerttia speed and
Accuracy.
Further, every wirerope 20 is socketed with fixed link 30, and fixed link 30 and 10 edge of rotating disc are rotatablely connected,
The rotation direction of fixed link 30 is vertical with rotating disc 10.
In the embodiments of the present invention, every wirerope is socketed with fixed link, wirerope can with fixed link it
Between opposite sliding, fixed link and rotation plate edge rotation connection, the rotation direction of fixed link is vertical with rotating disc, convenient for measuring steel
Cord deviates the angle of vertical direction, reduces the difficulty of unmanned plane rotation inerttia, improves the survey of unmanned plane rotary inertia
The speed and accuracy of amount.Fixed link can limit the direction that wirerope stretches out rotating disc, and fixed link also can be avoided steel wire
The edge of rope and rotating disc directly contacts, and improves the service life of wirerope.
Further, fixed link 30 is rotatablely connected by hinge 31 and rotating disc 10.
In the embodiments of the present invention, fixed link is connect by hinge with turn disc, and hinge arrangement is simple, can
By property height, long service life can limit the rotation direction of fixed link, and limitation wirerope stretches out the direction of rotating disc, fixed link
Also the edge that can be avoided wirerope and rotating disc directly contacts, and improves the service life of wirerope.
Further, including angular transducer 32, angular transducer 32 are used to detect fixed link 30 and deviate vertical direction
Angle.
In the embodiments of the present invention, angular transducer is used to detect the angle that fixed link deviates vertical direction, just
In obtaining measurement data, the difficulty of unmanned plane rotation inerttia is reduced, the speed of unmanned plane rotation inerttia is improved
And accuracy.
Further, every wirerope 20 is provided with tension sensor 21.
In the embodiments of the present invention, every wirerope is provided with tension sensor, and tension sensor can obtain
Pulling force of the wirerope to testee is obtained, readily available measurement data reduces the difficulty of unmanned plane rotation inerttia, improves
The speed and accuracy of unmanned plane rotation inerttia.
Further, on rotating disc 10 at least provided with three reinforcing ribs 11,11 connecting steel wire ropes 20 of reinforcing rib are from rotation
At 10 extraction of disk with the center of rotation of rotating disc 10.
In the embodiments of the present invention, reinforcing rib strengthens the structure of rotating disc, improves the intensity of rotating disc, mentions
The high reliability of rotational inertia measuring device, meanwhile, also reduce the manufacturing cost of rotational inertia measuring device.
Further, the angle between two reinforcing ribs 11 of arbitrary neighborhood is 120 degree.
In the embodiments of the present invention, the angle between two reinforcing ribs of arbitrary neighborhood is 120 degree, is improved
The intensity of rotating disc improves the reliability of rotational inertia measuring device.
Further, rotating disc 10 is driven by motor 40.
In the embodiments of the present invention, rotating disc passes through the rotational angle of motor, control rotation by motor driven
The rotational angle of disk, so that angle known to turn disc, readily available measurement data, reduce the survey of unmanned plane rotary inertia
The difficulty of amount improves the speed and accuracy of unmanned plane rotation inerttia.
Further, every wirerope 20 is provided with cable regulator 22.
In the embodiments of the present invention, every wirerope is provided with cable regulator, cable regulator energy
The length for enough adjusting wirerope improves the flexibility of rotational inertia measuring device so as to adjust the posture of testee.
Further, including sensor for countering, sensor for countering are used to detect the number of torsions and single of testee
The time of torsion.
In the embodiments of the present invention, including sensor for countering, sensor for countering are used to detect the torsion of testee
Turn the time of number and single torsion, sensor for countering can be with but not just for infrared counting sensor, in measured object body surface
Inductor is pasted in face, hanging device is mounted testee, and adjust the posture of testee, drives the certain angle of turn disc
Degree, testee do simple harmonic motion, and the every infrared counting sensor of process of inductor can remember a number and measure to be counted twice
Time between number, readily available measurement data reduce the difficulty of unmanned plane rotation inerttia, improve unmanned plane rotation
The speed and accuracy of inertia measurement.
With reference to Fig. 5, the junction of wirerope and rotating disc is respectively S1, S2 and S3, and wirerope mounts the position of testee
It is set to S3, S4 and S5, stay wire sensor measurement is that the length of three wirerope measures for L1, L2 and L3, tension sensor
It is wirerope is F1, F2 and F3 to the pulling force of testee, angular transducer measurement is angle that wirerope deviates vertical direction
Degree is α 1, α 2 and α 3.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that utility model range involved in the application, however it is not limited to made of the specific combination of above-mentioned technical characteristic
Technical solution, at the same should also cover do not depart from the utility model design in the case where, by above-mentioned technical characteristic or its be equal
Feature carries out any combination and other technical solutions for being formed.Such as features described above and (but being not limited to) disclosed herein have
The technical solution for thering is the technical characteristic of similar functions to be replaced mutually and being formed.
Claims (10)
1. a kind of rotational inertia measuring device, which is characterized in that including horizontally disposed rotating disc, be provided on the rotating disc
Three stay wire sensors, each stay wire sensor draw wirerope, and the every wirerope is far from the rotating disc
One end is provided with hanging device.
2. rotational inertia measuring device according to claim 1, which is characterized in that the every wirerope is socketed with solid
Fixed pole, the fixed link and the rotation plate edge are rotatablely connected, and the rotation direction of the fixed link is vertical with the rotating disc.
3. rotational inertia measuring device according to claim 2, which is characterized in that the fixed link by hinge with it is described
Turn disc connection.
4. rotational inertia measuring device according to claim 2, which is characterized in that including angular transducer, the angle
Sensor is used to detect the angle that the fixed link deviates vertical direction.
5. rotational inertia measuring device according to claim 1, which is characterized in that the every wirerope is provided with drawing
Force snesor.
6. rotational inertia measuring device according to claim 1, which is characterized in that at least provided with three on the rotating disc
Root reinforcing rib, the reinforcing rib connect the wirerope from the center of rotation of rotating disc extraction place and the rotating disc.
7. rotational inertia measuring device according to claim 6, which is characterized in that two reinforcing ribs of arbitrary neighborhood
Between angle be 120 degree.
8. rotational inertia measuring device according to claim 1, which is characterized in that the rotating disc passes through motor driven.
9. rotational inertia measuring device according to claim 1, which is characterized in that the every wirerope is provided with steel
Cord adjuster.
10. rotational inertia measuring device according to claim 1, which is characterized in that including sensor for countering, the counting
Sensor is used to detect the number of torsions of testee and the time of single torsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821939814.1U CN209342287U (en) | 2018-11-23 | 2018-11-23 | Rotational inertia measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821939814.1U CN209342287U (en) | 2018-11-23 | 2018-11-23 | Rotational inertia measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209342287U true CN209342287U (en) | 2019-09-03 |
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ID=67747804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821939814.1U Active CN209342287U (en) | 2018-11-23 | 2018-11-23 | Rotational inertia measuring device |
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| CN (1) | CN209342287U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113624399A (en) * | 2021-08-20 | 2021-11-09 | 哈尔滨工业大学 | Object rotational inertia measuring method applied to large-space rope driving system |
-
2018
- 2018-11-23 CN CN201821939814.1U patent/CN209342287U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113624399A (en) * | 2021-08-20 | 2021-11-09 | 哈尔滨工业大学 | Object rotational inertia measuring method applied to large-space rope driving system |
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Effective date of registration: 20210719 Address after: 518063 5th floor, block B, building 1, software industry base, Yuehai street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Fengyi Technology (Shenzhen) Co.,Ltd. Address before: 518061 Intersection of Xuefu Road (south) and Baishi Road (east) in Nanshan District, Shenzhen City, Guangdong Province, 6-13 floors, Block B, Shenzhen Software Industry Base Patentee before: SF TECHNOLOGY Co.,Ltd. |