CN105424248A - Unbalanced force and unbalanced moment measuring instrument for plane air floating table - Google Patents
Unbalanced force and unbalanced moment measuring instrument for plane air floating table Download PDFInfo
- Publication number
- CN105424248A CN105424248A CN201510751836.XA CN201510751836A CN105424248A CN 105424248 A CN105424248 A CN 105424248A CN 201510751836 A CN201510751836 A CN 201510751836A CN 105424248 A CN105424248 A CN 105424248A
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- China
- Prior art keywords
- plane
- measuring instrument
- air floating
- floating table
- unbalanced
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0047—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to residual stresses
Abstract
The invention discloses an unbalanced force and unbalanced moment measuring instrument for a plane air floating table, and relates to a measuring instrument, so as to solve problems that the measurement of a miniature unbalanced force and a miniature unbalanced moment of a plane three-freedom-degree or two-freedom-degree suspension platform cannot be achieved in the prior art and the decoupling of the translation and rotation of the plane three-freedom-degree or two-freedom-degree suspension platform is difficult to achieve in the prior art. The instrument comprises four guide rails, four tensiometers, four plane sliding tables, and a plurality of supporting seats. The four guide rails form a square frame structure, and are disposed on the plurality of supporting seats. Each guide rail is provided with one plane sliding table which can slide along the guide rail. Each plane sliding table is provided with one tensiometer. The instrument is used for the measurement of the unbalanced force and unbalanced moment of the plane air floating table.
Description
Technical field
The present invention relates to a kind of surveying instrument, be specifically related to a kind of can the surveying instrument of measurement plane Three Degree Of Freedom or two degrees of freedom air floating table out-of-balance force and unbalanced moments.
Background technology
Planar three freedom or two degrees of freedom floating platform are a kind of devices for simulating micro-damping, micro tribology, the multiple air-floatation planar bearing of usual use (or other levitation devices) is support member, after gases at high pressure enter bearing, form one deck high pressure air film, make whole stage body be suspended on pedestal, there is no physical connection with other objects.Due to the friction factor of air and ratio of damping all very low, whole stage body will form the mechanical environment of micro-damping and micro tribology.But due to air-bearing processing, the error of installing and the gravity unbalance loading of stage body, stage body self there will be certain out-of-balance force and unbalanced moments, generally use artificial visually examine's coarse adjustment, but be difficult to assess the remaining force and moment after regulating.
There is no the research of this type of micro-power and micro-torque measuring instrument at present, its difficulty be the unbalanced moments of stage body and power numerical value less, use force snesor common at present or torque sensor, be difficult to carry out decoupling zero to planar three freedom (two-degree of freedom translation, rotation) suspending bench translation and rotation.
Summary of the invention
The present invention solves prior art cannot realize planar three freedom or the micro-out-of-balance force of two degrees of freedom floating platform and the measurement of micro-unbalanced moments and be difficult to planar three freedom or the translation of two degrees of freedom suspending bench and rotate the problem of carrying out decoupling zero, and then provides a kind of plane air floating table out-of-balance force and unbalanced moments measuring instrument.
The present invention is the technical scheme taked that solves the problem: plane air floating table out-of-balance force of the present invention and unbalanced moments measuring instrument, and it comprises four guide rails, four tensiometers, four plane slide units and multiple supporting seats; Four guide rails form a quadra structure, and four guide rails assemblings, on multiple supporting seat, each guide rail are provided with and along of this slide plane slide unit, each plane slide unit can be provided with a tensiometer.
The invention has the beneficial effects as follows: planar three freedom of the present invention or two degrees of freedom air floating platform out-of-balance force and unbalanced moments measuring instrument, use simple tensiometer can measure small out-of-balance force and unbalanced moments, and solve the coupled problem of force and moment, tensiometer principle of the present invention is simple, convenient and practical, cost is low.
Accompanying drawing explanation
Fig. 1 is one-piece construction vertical view of the present invention, Fig. 2 is the one-piece construction vertical view of the present invention being provided with tested plane air floating table, Fig. 3 is the front view of Fig. 2, Fig. 4 is the principle schematic utilizing the present invention to measure tested plane air floating table out-of-balance force and unbalanced moments, and Fig. 5 utilizes the present invention to measure the principle schematic of tested plane air floating table out-of-balance force and unbalanced moments after air-bearing ventilation.
Embodiment
Embodiment one: composition graphs 1-Fig. 5 illustrates, the plane air floating table out-of-balance force of present embodiment and unbalanced moments measuring instrument, it comprises four guide rails, 1, four tensiometers, 5, four plane slide units 3 and multiple supporting seat 10; Four guide rails 1 form a quadra structure, and four guide rails 1 are arranged on multiple supporting seat 10, each guide rail 1 are provided with a plane slide unit 3 that can slide along this guide rail 1, each plane slide unit 3 are provided with a tensiometer 5.
The using method of measuring instrument comprises the following steps: be installed to by measurement slide block on tested plane air floating table; Adjustment of tonicity meter position, (contact position is identical to make four tensiometers all touch tested slide block with equal state, reading absolute value is identical, and left side tensiometer is contrary with tensiometer reading direction, right side, and top tensiometer is contrary with tensiometer reading direction, below); Air-bearing is ventilated, and makes tested plane air floating table be in float state; Read four tensiometer numerical value, calculate unbalanced moments and out-of-balance force.
Embodiment two: composition graphs 1 and Fig. 2 illustrate, the tensiometer 5 of present embodiment is single needle tensiometer.Setting like this, structure is simple, reasonable in design, meets actual needs and designing requirement, is preferably HTS-10 by model, the horizontal tension meter of range 10g, resolution 0.2g.Other is identical with embodiment one.
Embodiment three: composition graphs 1 and Fig. 2 illustrate, the quadra of present embodiment is square frame.Setting like this, structure is simple, is conducive to the layout of equilibrium of forces.Other is identical with embodiment one or two.
Embodiment four: composition graphs 1 and Fig. 2 explanation, each guide rail 1 of present embodiment is processed with a rectangular chute 1-1 along the length direction of guide rail, plane slide unit 3 lower surface is processed with the fin arranged that to match with rectangular chute, and plane slide unit 3 is arranged on guide rail 1 by lock-screw 2.Setting like this, structure is simple, is convenient to plane slide unit at slide on rails.Other is identical with embodiment three.
Embodiment five: composition graphs 1 and Fig. 2 illustrate, the rectangular chute 1-1 of present embodiment is rectangle chute.Setting like this, processes easy to use, meets actual needs.Other is identical with embodiment four.
Embodiment six: composition graphs 1 and Fig. 2 illustrate, the quantity of the supporting seat 10 of present embodiment is 4, and four corners of quadra are respectively provided with a supporting seat 10.Setting like this, meets the design requirements and the actual needs.Other with embodiment one, two, four or five identical.
Embodiment seven: composition graphs 1 and Fig. 2 illustrate, the described measuring instrument of present embodiment also comprises four mount pads 4, and mount pad 4 is arranged on plane slide unit 3, and tensiometer 5 is arranged on mount pad 4.Setting like this, tensiometer is easy for installation reliable and stable.Other is identical with embodiment six.
The course of work: first measuring instrument shown in Fig. 1 installed and supporting seat be statically placed on a platform; Then tested plane air floating table is placed and measuring instrument quadra central authorities (platform and tested plane air floating table center superposition), and be placed on air-bearing 8, as shown in Figure 2; Install four and measure slide block 11 on tested plane air floating table 6, note, it is symmetrical along tested plane air floating table Platform center that slide block 11 position is measured in two, left and right, measures slide block 11 position along tested plane air floating table 6 Central Symmetry for upper and lower two; Adjustment of tonicity meter position, (measuring slide block is rectangular shaped slider with measuring slide block 11 side edge contact to make the indicator head of tensiometer or contact pilotage arm, contact position is identical, reading absolute value is identical, and left side tensiometer is contrary with tensiometer reading direction, right side, top tensiometer is contrary with tensiometer reading direction, below), and slip plane slide unit 3 makes tensiometer 5 apply certain pretightning force F, as shown in Figure 4, (usually F is made
1=F
3=F
2=F
4), then use lock-screw 2 to fix tensiometer 5 position; Ventilate to air-bearing 8, tested plane air floating table 6 is floated, now tested plane air floating table will reach a new balance automatically, the numerical value F of record tensiometer 5
1', F
2', F
3' and F
4', as shown in Figure 5, ignore the friction force (very little) of air-bearing 8, now external force suffered by tested plane air floating table 6 is tensiometer applied force and self out-of-balance force and unbalanced moments, according to dynamic balance and equalising torque principle, out-of-balance force and the unbalanced moments of tested plane air floating table can be calculated:
F
Y＝F
1'-F
3'(1)
F
X＝F
4'-F
2'(2)
M＝(F
1'+F
2'+F
3'+F
4')×R(3)
Wherein, R is the arm of force of tensiometer, F
yfor Y direction out-of-balance force, F
xfor X-direction out-of-balance force.
F
1', F
2', F
3' and F
4' be respectively tested plane air floating table and float and reach the tension force that newly corresponding tensiometer records after balance; In Fig. 5, right represents X-axis positive coordinate, and top represents Y-axis positive coordinate.
Claims (7)
1. plane air floating table out-of-balance force and unbalanced moments measuring instrument, is characterized in that: it comprises four guide rails (1), four tensiometers (5), four plane slide units (3) and multiple supporting seats (10); Four guide rails (1) form a quadra structure, four guide rails (1) are arranged on multiple supporting seat (10), each guide rail (1) is provided with the plane slide unit (3) can slided along this guide rail (1), each plane slide unit (3) is provided with a tensiometer (5).
2. plane air floating table out-of-balance force according to claim 1 and unbalanced moments measuring instrument, is characterized in that: tensiometer (5) is single needle tensiometer.
3. plane air floating table out-of-balance force according to claim 1 and 2 and unbalanced moments measuring instrument, is characterized in that: quadra is square frame.
4. plane air floating table out-of-balance force according to claim 3 and unbalanced moments measuring instrument, it is characterized in that: each guide rail (1) is processed with a rectangular chute (1-1) along the length direction of guide rail, plane slide unit (3) lower surface is processed with the fin arranged that to match with rectangular chute, and plane slide unit (3) is arranged on guide rail (1) by lock-screw (2).
5. plane air floating table out-of-balance force according to claim 4 and unbalanced moments measuring instrument, is characterized in that: rectangular chute (1-1) is rectangle chute.
6. the plane air floating table out-of-balance force according to claim 1,2,4 or 5 and unbalanced moments measuring instrument, it is characterized in that: the quantity of supporting seat (10) is 4, four corners of quadra are respectively provided with a supporting seat (10).
7. plane air floating table out-of-balance force according to claim 6 and unbalanced moments measuring instrument, it is characterized in that: described measuring instrument also comprises four mount pads (4), mount pad (4) is arranged on plane slide unit (3), and tensiometer (5) is arranged on mount pad (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510751836.XA CN105424248B (en) | 2015-11-06 | 2015-11-06 | Plane air floating table out-of-balance force and unbalanced moments measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510751836.XA CN105424248B (en) | 2015-11-06 | 2015-11-06 | Plane air floating table out-of-balance force and unbalanced moments measuring instrument |
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| Publication Number | Publication Date |
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| CN105424248A true CN105424248A (en) | 2016-03-23 |
| CN105424248B CN105424248B (en) | 2018-09-07 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5170662A (en) * | 1990-06-27 | 1992-12-15 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation "S.N.E.C.M.A." | Balance for measuring the thrust of a turbojet engine |
| CN200941071Y (en) * | 2006-06-22 | 2007-08-29 | 慈兴集团有限公司 | Friction moment measurer for microload and different speed of bearing |
| CN101509820A (en) * | 2009-03-13 | 2009-08-19 | 哈尔滨工业大学 | Triaxial air bearing table balance method and apparatus thereof |
| CN101900627A (en) * | 2010-08-10 | 2010-12-01 | 哈尔滨工业大学 | Device and method for automatically adjusting center of mass after applying load to triaxial air-bearing turntable board |
| CN202350963U (en) * | 2011-11-23 | 2012-07-25 | 深圳市福义乐磁性材料有限公司 | Device for testing coupling unbalanced force of rotors of magnetic transmission device |
-
2015
- 2015-11-06 CN CN201510751836.XA patent/CN105424248B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5170662A (en) * | 1990-06-27 | 1992-12-15 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation "S.N.E.C.M.A." | Balance for measuring the thrust of a turbojet engine |
| CN200941071Y (en) * | 2006-06-22 | 2007-08-29 | 慈兴集团有限公司 | Friction moment measurer for microload and different speed of bearing |
| CN101509820A (en) * | 2009-03-13 | 2009-08-19 | 哈尔滨工业大学 | Triaxial air bearing table balance method and apparatus thereof |
| CN101900627A (en) * | 2010-08-10 | 2010-12-01 | 哈尔滨工业大学 | Device and method for automatically adjusting center of mass after applying load to triaxial air-bearing turntable board |
| CN202350963U (en) * | 2011-11-23 | 2012-07-25 | 深圳市福义乐磁性材料有限公司 | Device for testing coupling unbalanced force of rotors of magnetic transmission device |
Non-Patent Citations (1)
| Title |
|---|
| 毕国龙: "三轴气浮台系统技术实现研究", 《中国硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
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| CN105424248B (en) | 2018-09-07 |
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