CN209606016U - A kind of measuring device for justifying symmetrical homogeneous object rotation inertia - Google Patents
A kind of measuring device for justifying symmetrical homogeneous object rotation inertia Download PDFInfo
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- CN209606016U CN209606016U CN201920555091.3U CN201920555091U CN209606016U CN 209606016 U CN209606016 U CN 209606016U CN 201920555091 U CN201920555091 U CN 201920555091U CN 209606016 U CN209606016 U CN 209606016U
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Abstract
The utility model provides a kind of measuring device for justifying symmetrical homogeneous object rotation inertia, including pedestal and the driving mechanism of installation on the base, the transport mechanism for sample to be tested to be sent to driving mechanism and camera shooting mechanism；Driving mechanism includes turntable, driving motor and pillar, and center of turntable position and driving motor output shaft are connected, and driving motor is fixed on the base by pillar；Transport mechanism includes rotating basis, transfer assembly and first support, and transfer assembly is connected in first support, and first support bottom is connected with the rotating basis being rotationally connected on pedestal；Imaging mechanism includes video camera and second support, and video camera is fixed on pedestal through second support；Above turntable, image pickup scope covers disc surfaces for camera post.The utility model measuring device, angular speed Convergent Phenomenon of the manufacturing theory based on the symmetrical homogeneous object screw at the uniform velocity rotating circular disk of circle, measurement accuracy is all high with efficiency, provides new method for engineer application and quality testing.
Description
Technical field
The utility model belongs to physical quantity technical field, is related to the symmetrical homogeneous object (sphere, annulus, turntable etc.) of circle
A kind of measurement of rotary inertia, and in particular to quick, the symmetrical homogeneous object rotation inertia of precise measurement circle device.
Background technique
The mass property of object mainly includes quality, mass center, rotary inertia, product of inertia of object etc., is aerospace, vehicle
, the fields such as the precision machinery key parameter that is designed, controls, precise measurement and quality monitoring are carried out to it has important meaning
Justice.Wherein, many devices belong to the scope of the symmetrical homogeneous object (sphere, annulus, turntable etc.) of circle, such as: bearing, steel ball,
Nut.For the measurement of the symmetrical homogeneous object rotation inertia of circle, currently used measurement method has Constructional Elements Using Falling Methods, three-line pendulum method, torsion
Arrangement, quality collimation method etc..
Constructional Elements Using Falling Methods need manually by cable loop around sample multi-turn, and rope other end connection weight does the movement of falling object, draws
Dynamic sample rotates, not only operating process is cumbersome for this measurement method, but also test repeatability is poor, is unfavorable for continuous several times measurement.
Using oscillator system, micro breadth oscillation carries out the measurement and calculating of rotary inertia under the effect of gravity for three-line pendulum method and Inertia Based on Torsion Pendulum Method, this two
Kind measurement method vibration processes are slow, and measurement efficiency is low.Quality collimation method theoretical basis is complicated, and test repeatability is poor, to test
Personnel requirement is higher.
Although all being deposited in conclusion the measurement method at present about the symmetrical homogeneous object rotation inertia of circle is existing very much
In corresponding technological deficiency, measurement efficiency is lower, and measurement error is generally not less than 1%, cannot achieve engineer application and quality
(referring to Zhang Jiaochao, Hao Fangnan, rotary inertia test method is summarized, automobile zero for high-volume, high-precision testing requirement in detection
Component, 2015 (10): 83~85).
Utility model content
For the symmetrical homogeneous generally existing error of object rotation inertia measurement method of current circle, big, low efficiency technology is lacked
It falls into, it is symmetrical based on circle the purpose of this utility model is to provide a kind of measuring device for justifying symmetrical homogeneous object rotation inertia
The angular speed Convergent Phenomenon of homogeneous object (sphere, annulus, turntable etc.) screw at the uniform velocity rotary turnplate, to improve rotation
The measurement accuracy and measurement efficiency of inertia realize high-volume, high-precision testing requirement in engineer application and quality testing.
Mu Xiang is vivid etc. to disclose the multi-motion modes about lightweight rotary body on horizontal uniform rotation disk
Paper (multi-motion modes of the lightweight rotary body on horizontal uniform rotation disk, Mu Xiangxu, Guan Guoye, the mechanics such as Zhang Bowen
With practice, 2,017 39 (5): 523~529), the symmetrical homogeneous object (such as sphere, annulus, turntable) of a circle is discharged in text
In on the coarse turntable of horizontal uniform rotation, the screw surrounding and far from center of turntable will occur for the symmetrical homogeneous object of circle,
Its phase angle speed convergence is in following formula (1):
Wherein, ωDFor turntable angular speed, m is the symmetrical homogeneous mass of object of circle, and R is the symmetrical homogeneous object outer radius of circle,
I is the rotary inertia of the symmetrical homogeneous object of circle.Arrangement formula (1) can obtain the calculation formula (2) of the object rotation inertia:
Therefore, by measuring quality m and outer radius R, the turntable angular velocity omega of the symmetrical homogeneous object of circle to be measuredDAnd its angle
Speed convergence value ω ' substitutes into the rotary inertia I that the device under test can be calculated in above-mentioned formula (2).
The symmetrical homogeneous object of circle can be rotated around the angular speed convergency value ω ' of disc centre by the symmetrical homogeneous object of circle
The spiral movement locus of disk center is calculated, and obtains the symmetrical homogeneous Objects around A turntable of circle by the image or picture of video camera shooting
The spiral movement locus at center is defined from angular speedIt sets out, obtains the angular speed at any point on motion profile, look for
The smallest circle of angular speed standard deviation (establishes rectangular coordinate system, y-axis positive axis by origin of center of turntable on motion profile out
For start angle, object often moves 360 ° around disc centre and is denoted as a circle), and with the angular speed of one circle of angular speed variation minimum
Average value is as object around the angular speed convergency value ω ' of disc centre.
In order to achieve the goal above, the technical solution adopted in the utility model are as follows: symmetrically homogeneous object rotation is used for a kind of circle
The measuring device of amount, including pedestal and installation driving mechanism on the base, for sample to be tested to be sent to driving mechanism
Transport mechanism and camera shooting mechanism；
Driving mechanism includes turntable, driving motor and pillar, and center of turntable position and driving motor output shaft are connected, driving
Motor is fixed on the base by pillar；
Transport mechanism includes rotating basis, transfer assembly and first support, and transfer assembly is connected in first support, and first
Frame bottom is connected with the rotating basis being rotationally connected on pedestal；
Imaging mechanism includes video camera and second support, and video camera is fixed on pedestal through second support；Camera post in
Right above the turntable center of circle, image pickup scope covers disc surfaces.
The driving motor torque is sufficiently large, and power is sufficiently stable, can control, pushes turntable at the angle of 0~16rad/s
Stablize uniform rotation in velocity interval；Driving motor also needs the anti-interference ability for having certain, meets sample to be tested and falls in turntable
Shi Buhui causes revolving speed to disturb；Specific motor and subsidiary accessory are without special type requirement, model plane motor, electronics tune on the market
Fast device etc. is met the requirements.
The turntable uses disk, and quality needs hard, disk surface roughness to need uniformly, and the coefficient of sliding friction is necessary
It is sufficiently large to guarantee that aluminium can be selected in sample to be tested can do PURE ROLLING on it, preferably handle through frosted disk, material
Matter, rubber etc., in addition, the turntable should have different colors from sample to be tested, to guarantee to identify sample from image
Movement of the product on turntable simultaneously identifies when sample leaves conveyer belt and reach turntable, and this respect can have been disclosed using this field
Sample identification conventional means realize, such as disclosed in Zhang Huijun " based on setting for FPGA color of object recognition and tracking system
Target identification method (design and realization Zhang Hui based on FPGA color of object recognition and tracking system provided in meter and realization "
Monarch's master thesis Harbin Institute of Technology 2015.12).
Round pillar can be used in the pillar, by its seamless middle part for being mounted on device pedestal upper surface, the other end and drive
Dynamic motor is connected, and connection needs firm stable at two, with the mechanical movement of supporting wheel and driving motor.
It is slidably matched between the transfer assembly and first support；Cunning along the vertical direction is installed in the first support
Rail and the sliding block cooperated with sliding rail；Two support rods are inclined relative to horizontal and are fixed on sliding block, the sliding block by
Driving mechanism drives the sliding rail in first support to move up and down.
In order to not influence movement of the object under test on turntable, object under test is detached from after conveyer belt, needs conveyer belt
Turntable region is left as early as possible, is to increase conveyer belt first, separates conveyer belt with turntable, and it is clockwise then to control rotating basis
Rotation is so that conveyer belt leaves turntable region.In order to increase conveyer belt, transfer assembly and first support can be made to relatively move
It realizes, or makes rotating basis that first support and transfer assembly be driven integrally to move up and down.For the first implementation, transmission
It is slidably matched between component and first support；Transfer assembly includes conveyer belt and two support rods, and conveyer belt both ends are socketed in peace
Loaded on the symmetrically arranged idler wheel of two support rods or roller bearing, should adequately be lubricated between conveyer belt and idler wheel or roller bearing, with
Guarantee that it is rubbed by turntable and pushes the linear velocity that can be easily stable at contact point；It is equipped with along the vertical direction in first support
Sliding rail and with sliding rail cooperation sliding block；Two support rods are inclined relative to horizontal and are fixed on sliding block, conveyer belt and water
Angle between plane is 0 α≤5 ° <；Sliding block is driven in first support by driving mechanisms such as stepper motor or electric cylinders
Sliding rail moves up and down.For second of implementation, rotating basis and the rotating electric machine being attached thereto are installed on lifting together and put down
On platform, hoistable platform is placed in base interior, and hoistable platform can be connect with controller, by the lifting of controller control hoistable platform；
Transfer assembly includes conveyer belt and two support rods at this time, and the conveyer belt both ends are socketed in be installed on two support rods and symmetrically set
On the idler wheel or roller bearing set, two support rods, which are inclined relative to horizontal, to be fixed in first support, conveyer belt and level
Angle between face is 0 α≤5 ° <.
The second support includes the vertical arm connecting with pedestal and the transverse arm connecting with vertical arm, it is preferred to use " L "
Font, place perpendicular pass through the center of turntable, and video camera is installed on transverse arm and the disk of its camera lens face turntable
Center, video camera focal plane are overlapped with turntable, captured in real-time sample to be tested motion state and are transmitted to inside controller when work, are controlled
Device real-time mark processed, reading, record sample to be tested surround the angular speed of turntable；Fan is also equipped in second support, fan is solid
On the vertical arm of second support and its air outlet horizontally toward turntable center, outlet air wide-angle should be greater than 90 °, can for Dingan County
Turntable will be pushed away in the sample of movement.
The measuring device of the symmetrical homogeneous object rotation inertia of the circle further includes the electronics for measuring sample to be tested quality
Balance；The electronic balance is annular in shape, is mounted on the upper surface of device pedestal and around the bottom of round pillar；Electronics day
Flat precision should reach 0.1g, and the qualitative data that can measure the pressure sensor connecting in it with objective table is anti-in real time
It is fed in controller and arbitrarily setting is zeroed.
The measuring device of the symmetrical homogeneous object rotation inertia of the circle further include be set to side of base operation panel and
It is set to the controller of base interior；Controller respectively with operation panel, driving motor, electronic balance, for drive rotation base
Rotating electric machine, video camera, driving mechanism and the fan electrical connection of seat rotation.
The controller can be used single-chip microcontroller, programmable logic controller (PLC) (i.e. PLC controller) or have and above-mentioned function
Other kinds of controller.
The operation panel includes display screen, input keyboard, indicator light and power key, wherein display screen is for real
When show the shooting picture of video camera, the rotational angular velocity curve of driving motor and assist user input data, read data；
The input that input keyboard is used to that user to be assisted to carry out device data and instruction；Indicator light is for guiding user to discharge sample, opening
Begin to measure；Power key is for opening and closing device.
The measuring device of the symmetrical homogeneous object rotation inertia of the circle further includes the recycling basket enclosed on the turntable, is returned
The circularly symmetric funnel-form of basket is received, two parts can be symmetrically divided into, top edge is higher than turntable, for stopping measured sample to fly
Out, lower end surface is the annular end face being completely coincident with electronic balance loading annular surface.The quality of carried sample is applied to
Electronic balance；Recycling basket selects that quality is light, the production of anti abrasive material, such as plastics, bamboo chip.
The measuring device of the symmetrical homogeneous object rotation inertia of circle provided by the utility model, manufacture based on the principle that
The measuring device of the symmetrical homogeneous object rotation inertia of circle provided by the utility model, controller can by electronic circuit
With control the angular velocity of rotation of driving motor, the fixed-axis rotation of rotating basis, first support vertical flexible and high-power fan
Switch, also can receive, handle from operation panel, electronic balance, video camera input signal, play real-time monitoring turntable,
The angular speed of driving motor is simultaneously adjusted it, identifies, extracts, calculating the angular speed of sample in real time from motion image.
The device of the symmetrical homogeneous object rotation inertia of above-mentioned measurement circle, the course of work are as follows: before measurement, first make turntable from quiet
Only starting to accelerate and be stable at preset angular speed, conveyer belt lower edge is placed near center of turntable in accelerator, with
Disc surfaces contact position while sync plus white, could start to measure after turntable, driving motor, conveyer belt motion stabilization；Measurement
When, sample to be tested is put by user from conveyer belt upper end, and sample rolls down on turntable along conveyer belt, due to transmission line speeds with
Turntable linear velocity is consistent at contact point, and sample, which enters center of turntable, will immediately begin to PURE ROLLING after nearby；Work as sample to be tested
Have been moved off conveyer belt, be immediately controlled rotating basis vertically extend or control sliding block in first support along sliding rail it is vertically movable with
It separates conveyer belt with turntable, then controls rotating basis and rotate clockwise so that conveyer belt leaves turntable region, video camera will
Shooting sample to be tested the process of screw and is transmitted to controller on turntable without barrier, and controller real-time monitoring waits for test sample
The angular speed of product simultaneously calculates its angular speed limit of convergence value ω '；Sample to be tested reaches disk edge and falls into recycling basket, electronics day
It flushes and mass incremental m is fed back into controller after the signal for receiving pressure change, controller just controls first after receiving signal
Frame, rotating basis reverse movement return to home position, and waiting user is put into next sample to be tested；In conjunction with the angular speed limit of convergence
Value ω ', turntable angular velocity omegaD, mass incremental m and the sample outer radius R for measuring and inputting in advance, i.e. using formula (2)
The rotary inertia of sample can be calculated.
During test, conveyer belt has two kinds of location status: when a. sample discharges, conveyer belt lower edge is in turntable
The heart is overlapped with the radial direction of turntable and contacts with disc surfaces, and the two is identical in contact point linear velocity；B. sample reaches turntable
Afterwards, by the control of controller, first support extends a little, separates conveyer belt lower edge with turntable, subsequent rotating basis up time
Needle rotates certain angle, and conveyer belt is made to leave the regional scope of turntable, to realize accessible shooting；After single measurement,
First support and rotating basis will carry out contrary operation, and the lower edge of conveyer belt is made to contact turntable again.
Compared with prior art, the invention has the following advantages:
(1), the measuring device of the symmetrical homogeneous object rotation inertia of circle provided by the utility model, based on the symmetrical homogeneous object of circle
The angular speed Convergent Phenomenon of body screw at the uniform velocity rotary turnplate can make the phase of the symmetrical homogeneous object rotation inertia measurement of circle
5 ‰ are down to hereinafter, better than current most of general measurement means to error；By the stability and turntable of improving driving motor
The coarse uniformity, measurement error can be made further to decline, to greatly improve measurement accuracy.
(2), the measuring device of the symmetrical homogeneous object rotation inertia of circle provided by the utility model, since each object is turning
On disk can angle of arrival speed convergence value quickly, and the residence time is extremely short, and the single measurement time can be compressed within 30 seconds,
It is time-consuming to reduce measurement, improves measurement efficiency.
(3), it is measured using rotary inertia of the utility model measuring device to the symmetrical homogeneous object of circle, also there is behaviour
Make the advantages such as difficulty is low, measurement facilitates.
In general, which is to make engineer application and justify the measurement of symmetrical homogeneous object rotation inertia in quality testing more
It is convenient, more efficient, more accurate.
Detailed description of the invention
Fig. 1 is the schematic diagram of the symmetrical measuring device of homogeneous object rotation inertia of circle provided by the utility model；
Fig. 2 is the connection and control schematic diagram of section components and single-chip microcontroller in embodiment；
Wherein, 1 is pedestal, and 2 be operation panel, and 3 be turntable, and 4 be recycling basket, and 5 be driving motor, and 6 be pillar, and 7 be electricity
Sub- balance, 8 be rotating basis, and 9 be first support, and 10 be sliding rail, and 11 be support rod, and 12 be conveyer belt, and 13 be second support, 14
It is video camera for fan, 15.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
Embodiment
As shown in Figure 1, the present embodiment provides a kind of measuring device for justifying symmetrical homogeneous object rotation inertia, including pedestal 1
And driving mechanism on the base, the electronic balance 7 for measuring sample to be tested quality are installed, for sample to be tested to be sent to
The transport mechanism and camera shooting mechanism of driving mechanism are set to the operation panel 2 of side of base and are set to base interior as control
The single-chip microcontroller of device processed.
Driving mechanism includes turntable 3, driving motor 5 and pillar 6, and 3 center of turntable and driving motor output shaft are connected,
Driving motor 5 is fixed on pedestal 1 by pillar 6, and 3 periphery of turntable sets recycling basket 4, the structure funnel-shaped of recycling basket 4, top
Edge is higher than turntable 3, and lower end surface is the annular end face being completely coincident with electronic balance loading annular surface.
Electronic balance 7 is annular in shape, is mounted on pedestal 1 around pillar 6.
Transport mechanism includes rotating basis 8, transfer assembly and first support 9, and rotating basis 8 is under the drive of rotating electric machine
Rotation, is slidably matched between transfer assembly and first support 9,9 bottom of first support and the rotation base being rotationally connected on pedestal 1
Seat 8 is connected；Transfer assembly includes conveyer belt 12 and two support rods 11, and 12 both ends of conveyer belt, which are socketed in, is installed on two support rods 11
On symmetrically arranged idler wheel or roller bearing；Sliding rail 10 along the vertical direction and the cunning with sliding rail cooperation are installed in first support 9
Block；Two support rods 11, which are inclined relative to horizontal, to be fixed on sliding rail 10, and sliding block is in the stepper motor as driving mechanism
Sliding rail 10 under drive in first support 9 moves up and down.
Camera shooting mechanism includes video camera 15 and second support 13, second support 13 include the vertical arm being connect with pedestal 1 and
The transverse arm connecting with vertical arm, video camera 15 is installed on transverse arm and the disk center of its camera lens face turntable 3, vertically to
Lower placement, image pickup scope cover disc surfaces；The fan 14 in horizontally toward turntable center is installed on vertical arm.
Operation panel 2 includes display screen, input keyboard, indicator light, the power key being electrically connected with the controller respectively.
As shown in Fig. 2, single-chip microcontroller is rotated by electronic circuit and operation panel 2, electronic balance 7, driving motor 5, control
Stepper motor, fan 14, the video camera 15 of rotating electric machine, control sliding block sliding that pedestal 8 rotates are electrically connected in succession, are grasped by circuit
The mechanical movement for controlling driving motor 5, rotating basis 8, sliding block, high-power fan 14 also can receive, handle from operation panel 2, electricity
The signal that sub- balance 7, video camera 15 input.
The measuring device of the symmetrical homogeneous object rotation inertia of circle provided in this embodiment, application method are as follows:
A, when device is closed, conveyer belt 12, first support 9, rotating basis 8 are static to be in location status a；Recycling basket 4 is put
It is placed on electronic balance 7, and there is no accommodating sundries；
B, power key is pressed, device enters init state.Power key is shinny at this time, and the display screen of operation panel 2 is opened
And showing the shooting picture of video camera 15, operation panel 2 flashes the redlight, and user cannot be put into sample to be tested at this time for signal；
C, user successively measures the outside diameter D of the symmetrical homogeneous sample 1 of circle, 2,3...N using vernier caliperi, pass through behaviour
Make 2 input unit of panel, the outer radius R of difference is calculated in single-chip microcontrolleri=Di/2；
D, the angular velocity of rotation ω of turntable 3 is set from operation panel 2D, specific value combination disc surfaces degree of roughness sets
It is set to 12~16rad/s, it is desirable that be that sample can do pure rolling screw on the turntable 3 of rotation；7 registration of electronic balance is returned
Zero；
E, measuring state is opened.Driving motor 5 pushes turntable 3 to accelerate rotation, and turntable 3 drives conveyer belt 12 to accelerate, display
The angular speed curve of real-time display driving motor 5 and turntable 3 on screen；
F, when the angular velocity of rotation of driving motor 5 and turntable 3 is stable at preset value ωDWhen, operation panel 2 lights green light,
Illustrative user can be put into sample to be tested, formally start to measure；
G, user puts down on a moving belt or gives sample to be tested i gently a lesser initial velocity, is allowed to roll along conveyer belt
Under；
H, the video signal that single-chip microcontroller real-time reception comes from the transmission of video camera 15；When sample to be tested passes through conveyer belt lower edge
When reaching turntable 3, single-chip microcontroller drives the sliding block in first support 9 to move up by stepper motor immediately, makes under conveyer belt 12
Along separating with turntable 3, subsequent single-chip microcontroller control rotating electric machine drives rotating basis 8 to rotate clockwise certain angle, makes conveyer belt
12 leave 3 region of turntable；It is no more than 1 second before and after above-mentioned Machine Movement Process, turntable is completely covered in the visual angle of video camera 15 at this time
3。
I, sample to be tested pure rolling starts to do deep screw after falling into turntable 3；Single-chip microcontroller real-time reception comes
Since the image that the transmission of video camera 15 comes；
J, sample fell into turntable 3 after 10 seconds, and single-chip microcontroller starts high-power fan 14, high wind was sprayed toward turntable 3, to possible
It still moves the sample on turntable and gives external interference, promote away from turntable 3；The process is for 3 seconds；
K, sample is fallen in recycling basket 4, and single-chip microcontroller record is transmitted back to the mass incremental m come from electronic balance 7i, according to
The sample to be tested motion profile that sample falls into after turntable 3 in 10 seconds obtains angular speed convergency value ωi', in conjunction with outer radius Ri, benefit
Use formulaSample rotary inertia I is calculatedi；
L, after completing a sample measurement, it is identical as H step that single-chip microcontroller will be such that control rotating basis 8 rotates counterclockwise immediately
Angle, so that conveyer belt 12 is dropped to length identical with H step, make 12 lower edge of conveyer belt and turntable 3 it is radial be overlapped and
It close to 3 center of turntable, while being contacted again with 3 surface of turntable, starts to accelerate to identical linear velocity；Above-mentioned mechanical movement
It is no more than 3 seconds before and after process；
M, operator repeats step f~l on the conveyor belt 12 along next sample is put into complete 1~N of all samples
Measurement, N is sample size；
N, after the measurement for completing all samples, measuring state is exited from operation panel 2；After device is totally stationary, operation
Recycling basket 4 is symmetrically dismantled taking-up, retrieval device after cleaning measurement sample by personnel；Finally close power supply.
The present embodiment turns sphere based on symmetrical angular speed Convergent Phenomenon of the homogeneous object at the uniform velocity rotary turnplate of circle
Dynamic inertia measures, and device is simple, convenient, and the single measurement time can be compressed in 30 seconds, and measurement relative error is small
In 5 ‰, keep the rotation inerttia in engineer application more convenient, more efficient, more accurate.
The above embodiments of the present invention be only be illustrate examples for clearly illustrating the present invention, and not be to this reality
With the restriction of novel embodiment.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other various forms of variations and variation.Here all embodiments can not be exhaustive.It is all to belong to this reality
With novel technical solution changes and variations that derived from still in the column of the protection scope of the utility model.
Claims (10)
1. a kind of measuring device for justifying symmetrical homogeneous object rotation inertia, it is characterised in that including pedestal (1) and be mounted on pedestal
On driving mechanism, the transport mechanism for sample to be tested to be sent to driving mechanism and camera shooting mechanism；
The driving mechanism includes turntable (3), driving motor (5) and pillar (6), and turntable (3) center and driving are electric
Machine output shaft fixed connection, the driving motor (5) are fixed on pedestal (1) by pillar (6)；
The transport mechanism includes that rotating basis (8), transfer assembly and first support (9), the transfer assembly are connected to first
On bracket (9), first support (9) bottom is connected with the rotating basis (8) being rotationally connected on pedestal (1)；
The camera shooting mechanism includes video camera (15) and second support (13), and the video camera (15) is fixed through second support (13)
In on pedestal (1)；Video camera (15) is located above turntable, and image pickup scope covers disc surfaces.
2. the measuring device of the symmetrical homogeneous object rotation inertia of circle according to claim 1, it is characterised in that the transmission group
Part includes conveyer belt (12) He Lianggen support rod (11), and conveyer belt (12) both ends, which are socketed in, to be installed on two support rods (11)
On symmetrically arranged idler wheel or roller bearing, two support rods (11), which are inclined relative to horizontal, is fixed on first support (9).
3. the measuring device of the symmetrical homogeneous object rotation inertia of circle according to claim 2, it is characterised in that the transmission group
It is slidably matched between part and first support (9)；Be equipped on the first support (9) sliding rail (10) along the vertical direction and with
The sliding block of sliding rail (10) cooperation；Two support rods (11) are inclined relative to horizontal and are fixed on sliding block, the sliding block by
Driving mechanism drives the sliding rail (10) on first support (9) to move up and down.
4. the measuring device of the symmetrical homogeneous object rotation inertia of the circle according to Claims 2 or 3, it is characterised in that the transmission
Angle between band (12) and horizontal plane are as follows: 0 α≤5 ° <.
5. the measuring device of the symmetrical homogeneous object rotation inertia of circle according to claim 1, it is characterised in that described second
Frame (13) includes the vertical arm connecting with the pedestal (1) and the transverse arm connecting with vertical arm, video camera (15) installation
In on the transverse arm and disk center of its camera lens face turntable (3)；It is equipped in horizontally toward turntable on the vertical arm
The fan (14) of centre.
6. the measuring device of the symmetrical homogeneous object rotation inertia of circle according to claim 1, it is characterised in that further comprise
For measuring the electronic balance (7) of sample to be tested quality；The electronic balance is annular in shape, is mounted on pedestal around pillar (6)
(1) on.
7. the measuring device of the symmetrical homogeneous object rotation inertia of circle according to claim 6, it is characterised in that further comprise
It is set to the operation panel (2) of side of base and is set to the internal controller of pedestal (1)；The controller respectively with operating surface
Plate (2), driving motor (5), electronic balance (7), for drive rotating basis (8) rotate rotating electric machine, video camera (15) and
Fan (14) electrical connection.
8. the measuring device of the symmetrical homogeneous object rotation inertia of circle according to claim 7, which is characterized in that the operating surface
Plate (2) includes display screen, input keyboard, indicator light, the power key being electrically connected with the controller respectively.
9. the measuring device of the symmetrical homogeneous object rotation inertia of circle according to claim 1, it is characterised in that further comprise
It encloses and is set to the recycling basket (4) of the turntable (3) outside.
10. the measuring device of the symmetrical homogeneous object rotation inertia of circle according to claim 9, it is characterised in that the recycling basket
(4) structure funnel-shaped, top edge are higher than turntable (3), and lower end surface is completely coincident with electronic balance loading annular surface
Annular end face.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN2018211712925 | 2018-07-24 | ||
| CN201821171292 | 2018-07-24 |
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| CN209606016U true CN209606016U (en) | 2019-11-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113820070A (en) * | 2021-09-23 | 2021-12-21 | 浙江理工大学 | Rigid body rotational inertia measuring method and system based on machine vision and torsion pendulum method |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113820070A (en) * | 2021-09-23 | 2021-12-21 | 浙江理工大学 | Rigid body rotational inertia measuring method and system based on machine vision and torsion pendulum method |
| CN113820070B (en) * | 2021-09-23 | 2024-04-30 | 浙江理工大学 | Rigid body moment of inertia measuring method and system based on machine vision and torsion pendulum method |
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