CN205333245U - Portable little power value is drawn to power value on --spot calibrating device of system - Google Patents
Portable little power value is drawn to power value on --spot calibrating device of system Download PDFInfo
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- CN205333245U CN205333245U CN201521000128.4U CN201521000128U CN205333245U CN 205333245 U CN205333245 U CN 205333245U CN 201521000128 U CN201521000128 U CN 201521000128U CN 205333245 U CN205333245 U CN 205333245U
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Abstract
The utility model provides a portable little power value is drawn to power value on - -spot calibrating device of system, its characterized in that: including bearing frame, manual load mechanism (6), first connecting piece (7), second connecting piece (9), third connecting piece (11), bearing frame connects base (1), bottom end rail (2), stand (3), entablature (4) as an organic wholely by nut (5), install on entablature (4) manual loading device (6), on manual load mechanism (6) are installed through first connecting piece (7) to standard force transducer's (8) one end, the other end of standard force transducer (8) is connected to by the one end of school force transducer (10) through second connecting piece (9) again simultaneously, passed through on third connecting piece (11) be connected to the bottom end rail by school force transducer's (10) the other end, manual load mechanism (6) and third connecting piece are all installed on main bearing frame the central axis.
Description
Technical field
This device is applicable to metrology and measurement field, and affiliated specialty is force value calibration and test。
Background technology
Current many testing stands use force transducer and computer acquisition system composition force value system to carry out testing, controlling force value parameter。
For guaranteeing that the experimental result of product is reached optimal effectiveness by calibration result, calibrating mode is more preferably selected order and is: fielded system on-line calibration, fielded system original position off-line calibration, and the calibration of fielded system dystopy off-line calibration, laboratory system, laboratory are individually calibrated。But the force value system of many testing stands can not carry out fielded system calibration reason to be had: 1. not reserved suitable aligned spaces, it is impossible to fielded system calibrated in situ；2. not may be used for the controllable force source of calibration, it is impossible to fielded system calibrated in situ 3. computer system can not dismantle laboratory, and most basic laboratory system calibration also cannot realize。
When force value system not being carried out field calibration, metering/test section door generally only disassembles force transducer from testing stand, take laboratory force transducer is individually calibrated, and computer acquisition system is not calibrated, the adverse consequences that this calibrating mode causes: 1. magnitude tracing is unreliable, it is impossible to guarantee that the calibration value of force transducer is consistent with the test value (when running on testing stand) of whole force value system；2. the reliability of computer software cannot be assessed；3. the impact that signal disturbing brings can not be detected。
Domestic have the minority documents and materials about on-the-spot force value calibration。Such as the Master's thesis " on-the-spot force value system calibration technical research " that Changchun University of Science and Technology's Haitao Zhang was write in 2006, literary composition is simply inquired into standard dynamometer in the method utilizing the power source on testing stand to be calibrated, it does not have relating to can the power generation calibrating installation of output loads。Such as Hu Guoliang " the portable power generation calibrating installation " write on " measurement technology " periodical in 2008, power source is servomotor, and it needs there is match mechanism on testing stand for its installation, the height fixing and regulating whole device, and limitation is big。
Foreign technology is blocked, and investigates nowhere。
Therefore it is badly in need of developing voluntarily set of device and calibration steps: carry power source, makes it not be put to the test on platform aligned spaces and the impact of power source, and can widely use in testing stand and the product of various force value system, complete the purpose of force value system for field calibration。
Summary of the invention
The purpose of this utility model: provide the portable small value force in a set of power of carrying source to pull to force value system for field calibrating installation and calibration steps, it is achieved below 5kN pulls to force value calibration, and calibration expanded uncertainty is better than 0.1%, is suitable for most of testing stands。
Technical scheme
A kind of portable small value force pulls to force value system for field calibrating installation, it is characterized in that: include bearing frame, manual charging mechanism (6), the first connector (7), the second connector (9), the 3rd connector (11), bearing frame is by nut (5), base (1), sill (2), column (3), entablature (4) to be connected as one；Manual loading device (6) is arranged on entablature (4), one end of proof force sensor (8) is installed in manual charging mechanism (6) by the first connector (7), the other end of proof force sensor (8) is connected to by one end of school force transducer (10) further through the second connector (9) simultaneously, being connected on sill by the other end of school force transducer (10) by the 3rd connector (11), manual charging mechanism (6) and the 3rd connector are all arranged on main bearing frame central axis。Manual charging mechanism (6) realizes pulling to calibration to by school force transducer (10)。
Further: manual charging mechanism is worm drive structure, it is with promoting bearing, it may be achieved 5kN maximum load exports。
Accompanying drawing explanation
Fig. 1 is a kind of portable pressure valve system field calibration device structure principle chart, wherein, 1: base, 2: sill, 3: column, 4: entablature, 5: nut, 6: manual charging mechanism, 7: the first connectors, 8: standard transducer, 9: the second connectors, 10: corrected sensor, 11: the three connectors；
Fig. 2 is manual charging mechanism structure principle chart；
Fig. 3 is Your Majesty's beam structure schematic diagram；
Detailed description of the invention
For better illustrating this utility model, illustrate below in conjunction with accompanying drawing。
A kind of portable small value force pulls to force value system for field calibrating installation, it is characterized in that: including bearing frame, manual charging mechanism the 6, first connector the 7, second connector the 9, the 3rd connector 11, bearing frame is to be connected as one by 5 bases 1 of nut, sill 2, column 3, entablature 4；Manual loading device 6 is arranged on entablature 4, one end of proof force sensor 8 is installed in manual charging mechanism 6 by the first connector 7, the other end of proof force sensor 8 is connected to by one end of school force transducer 10 further through the second connector 9 simultaneously, being connected on sill by the other end of school force transducer 10 by the 3rd connector 11, manual charging mechanism 6 and the 3rd connector are all arranged on main bearing frame central axis。Manual charging mechanism 6 and the 3rd connector are all arranged on main bearing frame central axis。
Manual charging mechanism can adopt nut, handle, thrust ball bearing, retainer, anti-rotational screw rod, anti-rotation pads to form。Thrust ball bearing can reduce frictional force, improves the load value that mechanism is produced by human body, and the manual charging mechanism of this device is maximum produces 5kN load。
3rd connector can adopt screw rod, nut, sleeve, pillar pin, extension bar。Extension bar can have the plurality of specifications such as 5cm, 10cm, 15cm, 20cm, selects by the height requirement of sensor。One end of screw rod is supporting with sensor interface, and the other end is set to same size, increases operation rate。
For the dynamometer requirements of installation space that satisfied height is different from 5cm to 20cm, in the following manner can be used in combination: rotary manual charger makes its screw rod effective length (length below secondary sill) change, and the 3rd connector is selected the screw rod of different length。
This device adopts internal force to load, transmission form, namely whole proof force sensor, be all arranged on inside this device by school force transducer, form internal force and loads and transmission, reach non-coplanar force balance。It is not limited by place, need to not install the fixing strong point on ground, as long as there being the vacant lot of one piece of apparatus for placing just passable。Device can be placed vertically, traverse, it is possible to installs in the installment state of testing stand fully according to by calibration system, allows align mode as far as possible and uses state consistency, which greatly enhances the reliability of calibration result。
The transmittance process of power: in FIG, when rotary manual load maintainer makes screw rod move up, is now pulled upwardly what corrected sensor of standard transducer, and entablature is subject to the pressure of manual charging mechanism, and sill receives pulling to of corrected sensor
Use the calibration process of this device: after device and sensor install, manually loader be calibrated before prestrain, make standard transducer reach an identical load(ing) point with corrected sensor；When standard dynamometer with all started change and rate of change by the indicating value of school force transducer when by the 1%-3% of school force transducer range, now the force value size of digital display meter and Computer display is as quiescent value, zero point value (can they be zeroed out), technology referring next to " JJG455-2000 work dynamometer national verification code " requires reconnaissance calibration, being loaded into desired value successively, desired value is to carry out reference using standard dynamometer indicating value as standard value。During loading, the indicating value of standard dynamometer is observed while slow rotary manual loader, when standard indicating value arrives desired value, stop loading, after stablizing 15 seconds, simultaneously record standard dynamometer indicating value and by the indicating value of school force value system, then proceed to slow rotary manual loader and be loaded into next desired value in the same way and record data。After having loaded all target loads, it is unloaded to Light Condition by rotary manual loader, it is possible to by said method recalibration；Finally being unloaded down from device by school force value system。
Claims (2)
1. a portable small value force pulls to force value system for field calibrating installation, it is characterized in that: include bearing frame, manual charging mechanism (6), the first connector (7), the second connector (9), the 3rd connector (11), bearing frame is by nut (5), base (1), sill (2), column (3), entablature (4) to be connected as one；Manual charging mechanism (6) is arranged on entablature (4), one end of proof force sensor (8) is installed in manual charging mechanism (6) by the first connector (7), the other end of proof force sensor (8) is connected to by one end of school force transducer (10) further through the second connector (9) simultaneously, being connected on sill by the other end of school force transducer (10) by the 3rd connector (11), manual charging mechanism (6) and the 3rd connector are all arranged on main bearing frame central axis。
2. portable small value force according to claim 1 pulls to force value system for field calibrating installation, it is characterised in that: manual charging mechanism (6) is worm drive structure。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521000128.4U CN205333245U (en) | 2015-12-04 | 2015-12-04 | Portable little power value is drawn to power value on --spot calibrating device of system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521000128.4U CN205333245U (en) | 2015-12-04 | 2015-12-04 | Portable little power value is drawn to power value on --spot calibrating device of system |
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| CN205333245U true CN205333245U (en) | 2016-06-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318179A (en) * | 2018-01-11 | 2018-07-24 | 浙江大学 | Sinusoidal force on-line calibration device based on piezoelectric ceramics |
| CN108956006A (en) * | 2018-08-20 | 2018-12-07 | 云南省计量测试技术研究院 | Small value force measuring instrument rapid verification calibration system |
| CN109573099A (en) * | 2018-12-17 | 2019-04-05 | 上海精密计量测试研究所 | Flight control simulator Tensile or Compressive Loading pilot system field calibration device |
-
2015
- 2015-12-04 CN CN201521000128.4U patent/CN205333245U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318179A (en) * | 2018-01-11 | 2018-07-24 | 浙江大学 | Sinusoidal force on-line calibration device based on piezoelectric ceramics |
| CN108956006A (en) * | 2018-08-20 | 2018-12-07 | 云南省计量测试技术研究院 | Small value force measuring instrument rapid verification calibration system |
| CN109573099A (en) * | 2018-12-17 | 2019-04-05 | 上海精密计量测试研究所 | Flight control simulator Tensile or Compressive Loading pilot system field calibration device |
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