CN109374204A - Three floating instrument float assembly balance detecting devices of one kind and method - Google Patents
Three floating instrument float assembly balance detecting devices of one kind and method Download PDFInfo
- Publication number
- CN109374204A CN109374204A CN201811130602.3A CN201811130602A CN109374204A CN 109374204 A CN109374204 A CN 109374204A CN 201811130602 A CN201811130602 A CN 201811130602A CN 109374204 A CN109374204 A CN 109374204A
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- float assembly
- weighing sensor
- displacement sensor
- sensor
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- 238000000034 method Methods 0.000 title abstract description 17
- 238000005303 weighing Methods 0.000 claims abstract description 50
- 238000006073 displacement reaction Methods 0.000 claims abstract description 43
- 230000005484 gravity Effects 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 238000005259 measurement Methods 0.000 claims description 9
- 238000004364 calculation method Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000004579 marble Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000013139 quantization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008041 oiling agent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- G01M1/08—Instruments for indicating directly the magnitude and phase of the imbalance
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Balance (AREA)
Abstract
The invention discloses a kind of three floating instrument float assembly balance detecting devices and methods, including plate, flat support seat, support plate, displacement sensor, weighing sensor support base, weighing sensor.Weighing sensor is mounted on weighing sensor support base.The both ends horizontal of support plate laterally takes the top mounted in flat support seat and weighing sensor.Displacement sensor is fixed on support plate.In the equilibrium state detection for carrying out float assembly, makes the symmetric reference planar alignment displacement sensor of float assembly, read the registration of displacement sensor and the registration of weighing sensor.Then, float assembly inverted orientation is placed on support plate, reads again the registration of displacement sensor and the registration of weighing sensor.The position data and support force data measured according to 2 times, calculates offset of the center of gravity relative to geometric center of float assembly, to assess the equilibrium state of float assembly.
Description
Technical field
The present invention relates to a kind of three floating instrument float assembly balance detecting devices, for carrying out to three floating instrument float assemblies
Equilibrium state detection, measures position of the center of gravity relative to geometric center of float assembly, to assess the equilibrium-like of float assembly
State.Belong to inertia device precision assembly technology field.
Background technique
Three floating instrument float assemblies work are in oil slick environment, under specific temperature conditions, gravity that float assembly is subject to
It is equal with buoyancy, but the offset of center of gravity and centre of buoyancy will lead to effect of the float assembly by torque, to form disturbance torque, sternly
Ghost image rings three floating accuracy of instrument.In order to eliminate the disturbance torque that float assembly is subject to, accuracy of instrument is promoted, using in float assembly
The upper mode for carrying out duplicate removal is balanced.
Traditional float assembly balance method is: float assembly being put into equilibrium oil, the density of equilibrium oil is slightly larger than floating
Sub-component swims in float assembly in oil slick, adjusts position and the posture of float assembly, observes the equilibrium state of float, with
Duplicate removal balance is carried out by means of the experience of operator, oil slick is then placed again into and summarizes and observed, is and so on carried out until float
Component reaches balance.The operating process can not quantify, and be balanced entirely with the experience of operator, can not directly measure float assembly
Centroid offset, need the observation of repeated multiple times duplicate removal, process is cumbersome, and production efficiency is low.
Summary of the invention
Technology of the invention solves the problems, such as: overcoming the shortcomings of the prior art and equipment, it is floating to provide a kind of three floating instrument
Sub-component equilibrium state detection device and method provide quantifiable reference data for float assembly balancing processing operating process,
The accuracy of balance duplicate removal is promoted, production efficiency is improved.
The technical solution of the invention is as follows: a kind of three floating instrument float assembly balance detecting devices, including flat support
Seat, support plate, displacement sensor, weighing sensor support base, weighing sensor, flat support seat and weighing sensor support
In on horizontal plane, weighing sensor is mounted on weighing sensor support base seating, and the both ends horizontal of plate is supported laterally to take dress
On the top of flat support seat and weighing sensor, weighing sensor is used to measure the power of its receiving, the load of weighing sensor
Face is the measurement plane of reference, and in the equilibrium state detection for carrying out float assembly, displacement sensor and float assembly are mounted on branch
It supports on plate, makes the symmetric reference of float assembly in level displacement sensor, the geometry of displacement sensor float assembly
The distance of the heart range measurement plane of reference.
The flat support seat and weighing sensor support base are fixedly mounted on plate.
The plate is made of marble material.
Another technical solution of the invention is: a kind of three floating instrument float assembly equivalent detection methods, this method include
Following steps:
(s1), float assembly and displacement sensor are mounted on support plate, make the symmetric reference plane of float assembly
It is directed at displacement sensor, reads the registration D of displacement sensor1With the registration F of weighing sensor1；
(s2), float assembly cephalocaudal direction is placed upside down on support plate, the symmetric reference plane of float assembly is still
It is directed at displacement sensor, reads again the registration D of displacement sensor2With the registration F of weighing sensor 82；
(s3), the equalising torque relationship measured twice using step (s1) and step (s2), is calculated float assembly
Offset d between center of gravity and geometric center balances duplicate removal for float assembly.
The calculation formula of offset d between the center of gravity and geometric center of the float assembly are as follows:
Wherein, L is support plate and the distance between flat support seat and the supporting point of weighing sensor；M is float group
Part weight.
The beneficial effect of the present invention compared with the existing technology is:
(1), the present invention directly examines float assembly equilibrium state by displacement sensor and weighing sensor realization
It surveys and analyzes, realize the accurate duplicate removal balance of float assembly, carry out the floating equilibrium state of liquid it is not necessary that float assembly to be put into oil slick
Observation, reduces the loss that liquid floats equilibrium oil and cleaning agent, avoids pollution and waste, and improving production efficiency shortens the production cycle, keeps away
Exempt from material damage, production cost can be substantially reduced.
(2), the present invention to float assembly carry out forward and reverse 2 times measurement, by lever principle detect center of gravity relative to
The relative position of reference planes measures the offset of center of gravity, is balanced state-detection to three floating instrument float assemblies, is floating
Sub-component duplicate removal provides quantization reference, and process is simple, reduces to operator's skill
Detailed description of the invention
Fig. 1 is system theory of constitution figure of the invention；
Fig. 2 is equilibrium state detection principle diagram of the invention.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1, for a kind of three floating instrument float assembly balance detecting device theory of constitution figures of the present invention, i.e., it is of the invention
Citation form, it by plate 1, flat support seat 2, support plate 3, displacement sensor fixed frame 4, displacement sensor 5, weighing
The composition such as sensor support seat 7, weighing sensor 8.
The topology layout of entire measuring device: flat support seat 2 and weighing sensor support base 7 are separately fixed at plate 1
Both ends, the plate 1 can be made of marble material, and plate 1 is placed on horizontal plane, and weighing sensor 8 is mounted on title
It retransmits on sensor support base 7, the both ends horizontal of support plate 3 is laterally taken mounted in the top of flat support seat 2 and weighing sensor 8
End, weighing sensor 8 are used to measure the power of its receiving, and the load-carrying surface of weighing sensor 8 is the measurement plane of reference, displacement sensor 5
It is fixed on support plate 3 by displacement sensor fixed frame 4, in the equilibrium state detection for carrying out float assembly 6, by position
Displacement sensor 5 and float assembly 6 are mounted on support plate 3, make the symmetric reference of float assembly 6 in face of level displacement sensor
5, i.e. the measurement direction of displacement sensor 5 crosses the symmetric reference face of float assembly 6, and perpendicular to tested surface, displacement sensor 5 is measured
The distance of the geometric center distance measurement plane of reference of float assembly 6.
Equilibrium state detects implementation process: in the equilibrium state detection for carrying out float assembly 6, float assembly being mounted on
Support on plate 3, make the symmetric reference planar alignment displacement sensor 5 of float assembly 6, read displacement sensor 5 registration and
The registration of weighing sensor 8.Then, 6 inverted orientation of float assembly is placed on support plate 3, reads again displacement sensing
The registration of device 5 and the registration of weighing sensor 8.The position data and support force data measured according to 2 times, and combine float assembly
6 relative to the relative position of support plate 3 and the geometric parameter of support plate 3, and the center of gravity that can calculate float assembly 6 is opposite
In the offset of geometric center, to assess the equilibrium state of float assembly 6.
Therefore, above-mentioned three floating instrument float assembly balance detecting devices are based on, the present invention also provides a kind of three floating instrument
Float assembly equivalent detection method, this method comprises the following steps:
S1, float assembly 6 and displacement sensor 5 are mounted on support plate 3, keep the symmetric reference of float assembly 6 flat
In face of level displacement sensor 5, the registration D of displacement sensor 5 is read1With the registration F of weighing sensor 81；
S2,6 cephalocaudal direction of float assembly is placed upside down on support plate 3, the symmetric reference plane of float assembly 6 is still
It is directed at displacement sensor 5, reads again the registration D of displacement sensor 52With the registration F of weighing sensor 82；
S3, the equalising torque relationship measured twice using step 1 and step 2, be calculated the center of gravity of float assembly 6 with
Offset d between geometric center balances duplicate removal for float assembly 6.
Equilibrium state detects basic principle and calculation method is as follows:
When carrying out the detection of float assembly equilibrium state, schematic diagram is illustrated in fig. 2 shown below, and it is flat that float assembly 6 is fixed on support
On the vee-block of plate 3, it is assumed that the distance between supporting point of support plate 3 and flat support seat 2 and weighing sensor 8 is L；It is floating
The geometric center centre of buoyancy of sub-component 6 is away from for D；6 weight of float assembly is m；The center of gravity of float assembly 6 and the offset of geometric center
For d.
Float assembly 6 be placed on support plate 3 on before, using left side supporting point as centre of moment, support plate 3, vee-block,
The torque that the weight of displacement sensor fixed frame 4 and displacement sensor 5 etc. is formed is M0。
1st time by float assembly 6 be placed on support plate on when, between the geometric center and weighing sensor of float assembly 6
Distance be D1, the registration of weighing sensor is F1, then the equalising torque relationship under the state are as follows:
M0+m(L-D1+ d)=F1L (1)
2nd time will float assembly 6 reverse end for end after be placed on when on support plate (i.e. by float assembly 6 rotate horizontally 180 degree),
The distance between the geometric center of float assembly 6 and weighing sensor are D2, and the registration of weighing sensor is F2, then under the state
Equalising torque relationship are as follows:
M0+m(L-D2- d)=F2L (2)
The offset d between the center of gravity and geometric center of float assembly 6 can be calculated by formula 1 and formula 2, therefore
Amount of unbalance can be obtained are as follows:
(F in formula 31-F2) it is the difference that weighing sensor measures twice, parameter (D1-D2) measured twice with displacement sensor
Gained difference is equal.Measured value substitution formula 3 can be found out into the offset d between the center of gravity and geometric center of float assembly 6, by
This can carry out accurate balance duplicate removal to float assembly 6.
The calculation formula of offset d between the center of gravity and geometric center of the float assembly 6 are as follows:
Wherein, L is support plate 3 and the distance between flat support seat 2 and the supporting point of weighing sensor 8；M is float
6 weight of component.
Reference planes relative to the position of geometric center be it is known, can be by 3 both ends supporting point distance of support plate, floating
Sub-component 6 is obtained away from geometric parameter measurements such as supporting point distance, 6 weight of float assembly.
The present invention is by directly detection 6 center of gravity of float assembly and geometric center, that is, centre of buoyancy relative position, for float
Component is balanced duplicate removal, promotes the accuracy of balance duplicate removal process.This method passes through quantization amount of unbalance testing result, according to
Testing result carries out duplicate removal balance, can simplify operating process, greatly promotes production efficiency, is that three floating instrument productions are saved largely
Cost.
The content that description in the present invention is not described in detail belongs to the well-known technique of those skilled in the art.
Claims (5)
1. a kind of three floating instrument float assembly balance detecting devices, it is characterised in that including flat support seat (2), support plate
(3), displacement sensor (5), weighing sensor support base (7), weighing sensor (8), flat support seat (2) and weighing sensor
Support base (7) is placed on horizontal plane, and weighing sensor (8) is mounted on weighing sensor support base (7), support plate (3)
Both ends horizontal is laterally taken mounted in the top of flat support seat (2) and weighing sensor (8), and weighing sensor (8) is for measuring it
The power of receiving, the load-carrying surface of weighing sensor (8) they are the measurement plane of reference, in the equilibrium state detection for carrying out float assembly (6),
Displacement sensor (5) and float assembly (6) are mounted in support plate (3), make the symmetric reference of float assembly (6) in face of standard
Displacement sensor (5), displacement sensor (5) measure the distance of the geometric center distance measurement plane of reference of float assembly (6).
2. a kind of three floating instrument float assembly balance detecting device according to claim 1, it is characterised in that the plate
Support base (2) and weighing sensor support base (7) are fixedly mounted on plate (1).
3. a kind of three floating instrument float assembly balance detecting device according to claim 1, it is characterised in that the plate
(1) it is made of marble material.
4. it is characterized by comprising such as the floating instrument float assembly equivalent detection method of one kind three based on claim 1 described device
Lower step:
(s1), float assembly (6) and displacement sensor (5) are mounted in support plate (3), make the symmetrical of float assembly (6)
Reference planes are directed at displacement sensor (5), read the registration D of displacement sensor (5)1With the registration F of weighing sensor (8)1；
(s2), float assembly (6) cephalocaudal direction is placed upside down in support plate (3), the symmetric reference of float assembly (6) is flat
Face is still directed at displacement sensor (5), reads again the registration D of displacement sensor (5)2With the registration F of weighing sensor (8)2；
(s3), the equalising torque relationship measured twice using step (1) and step (2), is calculated the center of gravity of float assembly (6)
Offset d between geometric center balances duplicate removal for float assembly (6).
5. a kind of three floating instrument float assembly equivalent detection method according to claim 4, it is characterised in that the float
The calculation formula of offset d between the center of gravity and geometric center of component (6) are as follows:
Wherein, L is the distance between the supporting point for supporting plate (3) and flat support seat (2) and weighing sensor (8)；M is floating
Sub-component (6) weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811130602.3A CN109374204A (en) | 2018-09-27 | 2018-09-27 | Three floating instrument float assembly balance detecting devices of one kind and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811130602.3A CN109374204A (en) | 2018-09-27 | 2018-09-27 | Three floating instrument float assembly balance detecting devices of one kind and method |
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| Publication Number | Publication Date |
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| CN109374204A true CN109374204A (en) | 2019-02-22 |
Family
ID=65401958
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| CN201811130602.3A Pending CN109374204A (en) | 2018-09-27 | 2018-09-27 | Three floating instrument float assembly balance detecting devices of one kind and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442750A (en) * | 2020-04-30 | 2020-07-24 | 国电科学技术研究院有限公司 | Device and method for measuring relative elevation of bearing seat of steam turbine generator unit |
| CN111829709A (en) * | 2020-06-22 | 2020-10-27 | 中国空间技术研究院 | Method and device for measuring torque of Hall thruster |
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| JPS56147003A (en) * | 1980-04-16 | 1981-11-14 | Agency Of Ind Science & Technol | Detecting method for barycenter position of face pressure |
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| CN105333997A (en) * | 2015-08-19 | 2016-02-17 | 南京理工大学 | Gravity center measuring instrument and gravity center measurement method |
| CN108106781A (en) * | 2017-12-06 | 2018-06-01 | 哈尔滨工程大学 | A kind of ship model gravity center measurement device |
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2018
- 2018-09-27 CN CN201811130602.3A patent/CN109374204A/en active Pending
Patent Citations (8)
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|---|---|---|---|---|
| JPS56147003A (en) * | 1980-04-16 | 1981-11-14 | Agency Of Ind Science & Technol | Detecting method for barycenter position of face pressure |
| JPH11248585A (en) * | 1998-03-05 | 1999-09-17 | Tamagawa Seiki Co Ltd | Measuring method for center of gravity |
| CN201653648U (en) * | 2009-12-30 | 2010-11-24 | 武汉重工铸锻有限责任公司 | Blade gravity center measuring instrument for marine distance adjusting impeller |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442750A (en) * | 2020-04-30 | 2020-07-24 | 国电科学技术研究院有限公司 | Device and method for measuring relative elevation of bearing seat of steam turbine generator unit |
| CN111442750B (en) * | 2020-04-30 | 2022-03-08 | 国电科学技术研究院有限公司 | Device and method for measuring relative elevation of bearing seat of steam turbine generator unit |
| CN111829709A (en) * | 2020-06-22 | 2020-10-27 | 中国空间技术研究院 | Method and device for measuring torque of Hall thruster |
| CN111829709B (en) * | 2020-06-22 | 2022-04-22 | 中国空间技术研究院 | Method and device for measuring torque of Hall thruster |
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Application publication date: 20190222 |
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