CN105092148A - Micro-force value dynamometer compression metering device - Google Patents

Micro-force value dynamometer compression metering device Download PDF

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Publication number
CN105092148A
CN105092148A CN201510580768.5A CN201510580768A CN105092148A CN 105092148 A CN105092148 A CN 105092148A CN 201510580768 A CN201510580768 A CN 201510580768A CN 105092148 A CN105092148 A CN 105092148A
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China
Prior art keywords
force value
hook
dynamometer
balance
small force
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CN201510580768.5A
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CN105092148B (en
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袁立新
齐磊
童棣
袁超
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Jiangxi Hongdu Aviation Industry Group Co Ltd
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Jiangxi Hongdu Aviation Industry Group Co Ltd
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Priority to CN201510580768.5A priority Critical patent/CN105092148B/en
Publication of CN105092148A publication Critical patent/CN105092148A/en
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Publication of CN105092148B publication Critical patent/CN105092148B/en
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Abstract

The invention provides a metering device used for detecting/calibrating compression of a micro-force value dynamometer. The metering device comprises an equal-arm balance, wherein the equal-arm balance comprises a balance cross beam, a left hook, a right hook, a left tray and a right tray, two sides of the balance cross beam are respectively equipped with the left hook and the right hook, a plumb pendant is mounted at the left hook, a center axis of the plumb pendant and a force bearing axis of a left edge of the balance are consistent, the right tray is hung on the right hook, the left tray is hung on the left hook, an n-shaped work station is fixed above the left tray, the n-shaped work station is equipped with a three-dimensional work station, and the micro-force value dynamometer is fixed on the three-dimensional work station. Compression value metering of the micro-force value dynamometer in a measuring range segment of 2mN-10N is guaranteed to be consistent with force value metering requirements, and crucial technical difficulty in establishing standard devices for detecting/calibrating compression metering of the micro-force value dynamometer.

Description

Small force value dynamometer pressure measuring apparatus
Technical field
The present invention relates to a kind of small force value dynamometer pressure measuring apparatus, belong to measuring apparatus technical field.
Background technology
Our small force value dynamometer of defining here, refers to that force measurement scope is the dynamometer of 2mN ~ 10N, hereinafter referred to as " small force value dynamometer ".Small force value dynamometer measuring apparatus (pulling to) is just used to the calibrating installation measuring small force value dynamometer, to ensure the accuracy of small force value dynamometer metering indicating value, meets Force measure requirement.
At present, the domestic metered amount value transmit work not yet carrying out small force value dynamometer.The amount that specify only more than 10N Force measure utensil in JJG2045-2010 " force value (≤1MN) measurement instrument national measurement verification system table " passes relation of tracing to the source.Below 10N measurement range Force measure utensil transmission of quantity value relation is also belonged to blank.The transmission of quantity value of below 10N Force measure utensil is not carried out in defence and military metering yet.Along with development in science and technology, sensor technology is increasingly mature, is that the utilization of the small force value dynamometer of medium is more and more extensive with sensor.Utilization for small force value dynamometer increases, and people are also at its relevant measurement and examination method of exploration.The small force value dynamometer of calibrating in the past pressure, directly add counterweight on small force value dynamometer, but, deadweight directly adds counterweight method two point defects: 1. because the minimum calibrating point of small force value dynamometer is 2mN, if directly add counterweight, the pallet itself supporting counterweight has deadweight, conducts oneself with dignity much larger than 2mN, is difficult to the object realizing dynamometer increasing load test from starting point; 2. be directly loaded into the power that the counterweight on pallet produces, cannot ensure that it passes through the axle center of dynamometer stress point, and side force can be produced; Do not meet Force measure by load coaxiality requirement.Because the outwardness of the problems referred to above, so be all adopt way that is simple, that piece together to detect small force value dynamometer all the time, there is no specification, complete calibrating installation to ensure the accuracy of small force value dynamometer pressure transmission of quantity value.
Summary of the invention
For specification, unified measurement scope 2mN ~ 10N small force value dynamometer metering magnitude transferring method, the invention provides a kind of small force value dynamometer pressure measuring apparatus, solve small force value dynamometer pressure calibrating measurement problem.
To achieve these goals, present invention employs following technical proposals: a kind of small force value dynamometer pressure measuring apparatus, comprise an equal-arm balance, equal-arm balance comprises balance crossbeam, left hook, right hook, left pallet, right pallet, in the both sides of balance crossbeam, left hook is installed respectively, right hook, left hook place installation vertical pendant, vertical pendant central axis is consistent with the balance left side stressed axis of the edge of a knife, right pallet is suspended on right hook, left pallet is suspended on left hook, a π type workbench is fixed above left pallet, a secondary three-dimensional working platform installed by π type workbench, small force value dynamometer is fixed on three-dimensional working platform.
Described three-dimensional working platform can move along X, Y, Z axis direction, and X, Y direction move the small force value dynamometer of adjustment by load coaxiality, and Z-direction moves and equal-arm balance is balanced.
The stressed axis of described small force value dynamometer is consistent with vertical pendant center line, and consistent with the stressed axis of the left side edge of a knife above left pallet.
In the small force value dynamometer process of calibrating, need the ascending multistage loadings of dynamometer, to reach the error of indication object of examining and determine small force value dynamometer pressurized direction force.Pallet deadweight and side force problem is there is for the above-mentioned small force value dynamometer of weight detecting that directly adds, we are greater than dead weight type safe (the directly loading) force standard machines of 10N in conjunction with existing force value, with lever (passing through lever amplification) force standard machines dynamometry principle, adopt an equal-arm balance, utilize balance lever equilibrium principle, solve owing to directly adding counterweight, need to overcome weight tray from Gravity Problem; Utilize balance stressed edge of a knife axis to link up with the consistent principle of stressed axis with weight tray, overcome and load side force problem, ensure the accuracy of small force value dynamometer by load coaxiality.In order to realize, Load-unload lotus is steady and the stressed centering of dynamometer is adjustable, and we adopt a Manual three-dimensional worktable, can move along X, Y, Z axis direction.Thus reach the object that the small force value dynamometer of measurement verification presses to (power) error of indication.
Small force value dynamometer pressure measuring apparatus of the present invention, can ensure, the metered amount value transmit of the small force value dynamometer (pressing to) of specification 2mN ~ 10N range section, provides gordian technique support for setting up small force value dynamometer.This technology not only can provide service for the small Force measure of defence and military enterprises and institutions, but also the field of small Force measure demand can be had to provide service for other, has certain society generalization and is worth.
Accompanying drawing explanation
Fig. 1 is small force value dynamometer pressure measuring apparatus schematic diagram of the present invention.
Icon illustrates: 1. equal-arm balance, 2. balance crossbeam, 3. left hook, 4. right hook, 5. right pallet, 6. left pallet, 7. vertical pendant, 8. small force value dynamometer, 9. three-dimensional working platform, 10. π type workbench.
Embodiment
Existing force value standard be all traceable to mass weight produce gravity ( f=mg).Afterburning mode due to force value counterweight is that vertical is downward all the time, the force value how force value counterweight downward for vertical all the time produced, step by step, steady being effectively applied to presses on force value dynamometer completely, and impact, dancing can not be had, the counterweight force value axial line of multistage loadings, the pressure center line that will be subject to small force value dynamometer remains consistent, is problem demanding prompt solution.
For the problems referred to above, provide a kind of small force value dynamometer and pull to power measuring apparatus, comprise a maximum capacity 1kg, minimum division value is 5mg equal-arm balance 1, in the both sides of balance crossbeam 2, left hook 3 is installed respectively, right hook 4, a vertical pendant 7 is installed at left hook 3 place, vertical pendant central axis requires consistent with the balance left side stressed axis of the edge of a knife, right pallet 5 is suspended on right hook 4, left pallet 6 is suspended on left hook 3, a π type workbench 10 is fixed above left pallet 6, a secondary three-dimensional working platform 9 installed by π type workbench 10, small force value dynamometer 8 is fixed on three-dimensional working platform 9.Three-dimensional working platform 9 can move along X, Y, Z axis direction.X, Y direction move the small force value dynamometer 8 of adjustment by load coaxiality, and Z-direction moves and equal-arm balance 1 is balanced.The stressed axis of small force value dynamometer 8 is consistent with vertical pendant 7 center line, and consistent with the stressed axis of the left side edge of a knife above left pallet 6.Rise balance crossbeam 2, observe balance indicator, adjustment counterweight camel makes balance crossbeam 2 balance.Left pallet 6 loads counterweight, and balance crossbeam 2 is tilted to the left, and mobile rising three-dimensional working platform 9 makes equal-arm balance 1 balance, and so just being loaded into the power that on left pallet 6, counterweight produces, all executing (pressure) and being added on small force value dynamometer 8.In like manner, multistage loadings, until peak load.Thus meet the requirement of Force measure, solve the transmission of quantity value demand of the small force value dynamometer of existing 2mN ~ 10N.

Claims (3)

1. a small force value dynamometer pressure measuring apparatus, comprise an equal-arm balance, equal-arm balance comprises balance crossbeam, left hook, right hook, left pallet, right pallet, in the both sides of balance crossbeam, left hook is installed respectively, right hook, it is characterized in that: left hook place installation vertical pendant, vertical pendant central axis is consistent with the balance left side stressed axis of the edge of a knife, right pallet is suspended on right hook, left pallet is suspended on left hook, a π type workbench is fixed above left pallet, a secondary three-dimensional working platform installed by π type workbench, small force value dynamometer is fixed on three-dimensional working platform.
2. small force value dynamometer pressure measuring apparatus according to claim 1, it is characterized in that: described three-dimensional working platform can move along X, Y, Z axis direction, X, Y direction move the small force value dynamometer of adjustment by load coaxiality, and Z-direction moves and equal-arm balance is balanced.
3. small force value dynamometer pressure measuring apparatus according to claim 1, is characterized in that: the stressed axis of described small force value dynamometer is consistent with vertical pendant center line, and consistent with the stressed axis of the left side edge of a knife above left pallet.
CN201510580768.5A 2015-09-14 2015-09-14 Small force value dynamometer pressure metering device Active CN105092148B (en)

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109489896A (en) * 2018-12-03 2019-03-19 江西洪都航空工业集团有限责任公司 The small horizontal pressure metering device of force value dynamometer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3535705A (en) * 1969-04-09 1970-10-20 Transmation Inc Electronic force balance device and systems utilizing same
CN101451897A (en) * 2008-12-24 2009-06-10 中国航空工业第一集团公司北京长城计量测试技术研究所 Electromagnetic type small force value standard apparatus
CN103389174A (en) * 2013-08-06 2013-11-13 吉林大学 Micro force measuring device
CN103499413A (en) * 2013-10-17 2014-01-08 中国测试技术研究院力学研究所 Force lever and lever type force standard device
CN104359619A (en) * 2014-12-03 2015-02-18 中国航空工业集团公司沈阳空气动力研究所 Dynamic calibration device and method for box-type balance for embedded cabin door force measurement test

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3535705A (en) * 1969-04-09 1970-10-20 Transmation Inc Electronic force balance device and systems utilizing same
CN101451897A (en) * 2008-12-24 2009-06-10 中国航空工业第一集团公司北京长城计量测试技术研究所 Electromagnetic type small force value standard apparatus
CN103389174A (en) * 2013-08-06 2013-11-13 吉林大学 Micro force measuring device
CN103499413A (en) * 2013-10-17 2014-01-08 中国测试技术研究院力学研究所 Force lever and lever type force standard device
CN104359619A (en) * 2014-12-03 2015-02-18 中国航空工业集团公司沈阳空气动力研究所 Dynamic calibration device and method for box-type balance for embedded cabin door force measurement test

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