CN110220641A - A kind of static torque calibrating installation and calibration method - Google Patents

A kind of static torque calibrating installation and calibration method Download PDF

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Publication number
CN110220641A
CN110220641A CN201910623129.0A CN201910623129A CN110220641A CN 110220641 A CN110220641 A CN 110220641A CN 201910623129 A CN201910623129 A CN 201910623129A CN 110220641 A CN110220641 A CN 110220641A
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CN
China
Prior art keywords
torque
torque sensor
calibrated
precision
fixed
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Pending
Application number
CN201910623129.0A
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Chinese (zh)
Inventor
于振
于万成
王桂莲
许鹏飞
王龙
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Shandong Qingdao Forty-Fifth Middle School (qingdao Industry And Trade Vocational School)
Original Assignee
Shandong Qingdao Forty-Fifth Middle School (qingdao Industry And Trade Vocational School)
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Application filed by Shandong Qingdao Forty-Fifth Middle School (qingdao Industry And Trade Vocational School) filed Critical Shandong Qingdao Forty-Fifth Middle School (qingdao Industry And Trade Vocational School)
Priority to CN201910623129.0A priority Critical patent/CN110220641A/en
Publication of CN110220641A publication Critical patent/CN110220641A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L25/00Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
    • G01L25/003Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency for measuring torque

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

The invention discloses a kind of static torque calibrating installation and calibration methods, static torque calibrating installation cooperates loading device work, including connector, outer housing, torque sensor to be calibrated, walk spool, high-precision torque sensor, the torque sensor to be calibrated, walk spool, chamber within the outer shell is arranged in high-precision torque sensor, the connector is fixed on the upper end of torque sensor to be calibrated, the outer housing includes top cover, barrel support, mounting disc, the top cover is located and fixed within the top of barrel support by seam allowance, the barrel support bottom is fixed in mounting disc, the torque sensor to be calibrated is fixed on top cover, the high-precision torque sensor is connected by spline housing with flower keyboard with torque sensor to be calibrated, the high-precision torque sensor positions by seam allowance and passes through screw and high-precision torque Sensor fixation plate is mounted in mounting disc, solves the problems, such as main shaft of numerical control machine tool output torque fluctuation measurement inaccuracy.

Description

A kind of static torque calibrating installation and calibration method
Technical field
The invention belongs to torsion calibration device technical fields, and in particular to one kind is for calibrating torque sensor institute to be calibrated Survey the calibrating installation and calibration method of torque value.
Background technique
Torque sensor has a wide range of applications as torque-measuring apparatus in mechanization and automation field, especially in number Control machine tool chief axis torque ripple fields of measurement, critical component of the torque sensor as main shaft of numerical control machine tool torque measurement, institute Measuring obtained torque value is also the important physical amount for representing main shaft of numerical control machine tool performance, therefore is calibrated to torque sensor It closes important.Existing calibration method, there are mainly two types of: one is the results of output result and static loading to torque sensor It directly compares, another kind is to calibrate torque sensing to be calibrated with the torque sensor of higher precision in case of a dynamic basis Device.Both methods has its defect, the first static loading, and the height of loading accuracy directly affects the precision of calibration, And all to may cause calibration result inaccurate for various forms of additional torques (generate including attachment device, what gravity generated etc.) Really;Second method is suitable for form connected horizontally, and one side gravity bring additional torque, which will lead to calibration, is not allowed, another The torque sensor measurement result that the transmitting of aspect motor output torque fluctuation will lead to different location is not identical.
Summary of the invention
In order to overcome above-mentioned technical problem existing for prior art, the object of the present invention is to provide a kind of static state Torsion calibration device and calibration method, it is ensured that the accuracy of the surveyed torque value of torque sensor to be calibrated.
A kind of static torque calibrating installation provided by the invention, cooperation loading device work, including connector, outer housing, Torque sensor to be calibrated walks spool, high-precision torque sensor, the torque sensor to be calibrated, walk spool, high-precision is turned round Chamber within the outer shell is arranged in square sensor, and the connector is fixed on the upper end of torque sensor to be calibrated, described Outer housing includes top cover, barrel support, mounting disc, and the top cover is positioned by seam allowance, and is fixed by screws in the top of barrel support Portion, the barrel support is positioned by seam allowance, and bottom is fixed by screws in mounting disc, the torque sensor to be calibrated It is positioned by seam allowance and screw is used to be fixed on top cover, further torque sensor to be calibrated is fixed on the following table of top cover Face, the high-precision torque sensor are connected by spline housing with flower keyboard with torque sensor to be calibrated, and the high-precision is turned round Square sensor positions by seam allowance and passes through screw and high-precision torque sensor fixed plate is mounted in mounting disc.
Herein described seam allowance, the yin-yang bank being as commonly called as are the structures for feeling relieved, connecting
The upper surface of top cover set by outer housing is exposed in the upper end of the torque sensor to be calibrated, and is connected with by flat key Fitting, the flat key tightened by nut, anticreep.
It is described walk spool is horizontally disposed is fixed on barrel support bucket wall, one end extends to inside barrel support, and the other end extends Barrel support out, the part inside barrel support are long compared with the part extended outside bucket.
It is in 90 ° of angles that spool setting is walked described in further with torque baton pass, and the barrel support upper and lower part is equipped with cabling Pipe, set two, which walk spool, is arranged in parallel, and walks spool set by the barrel support upper and lower part and is respectively used to torque sensor to be calibrated With high-precision torque sensor cabling.
The inner wall of the barrel support is equipped with panel, mounting fixing parts in the panel, and further fixing piece passes through seam allowance It positions and is fixed by screws in panel, bearing is installed, bearing is to support spline housing and adjusting pair on the fixing piece In.
The flower keyboard includes the splined shaft and disk arranged at the bottom for being located at top, the disk and high-precision torque Sensor is fixedly connected by screw, and the spline housing bottom is sleeved on splined shaft, is passed at the top of spline housing with torque to be calibrated Sensor connection.
The high-precision torque sensor fixed plate is L shape.
Connecting loading device at the top of the connector, the loading device includes torque baton pass, fixed pulley, scale pan, The torque baton pass is horizontally disposed with and is fixed at the top of connector, and fixed pulley is installed in the end of the torque baton pass, described Scale pan is connected on fixed pulley.
A kind of static torque calibrating installation and calibration method provided by the invention, the beneficial effect is that, torque is loaded Device and high-precision torque sensor are calibrated, later the high-precision torque sensor pair by being mounted in the mounting disc of bottom end Torque sensor to be calibrated is calibrated, it is ensured that the accuracy of the surveyed torque value of torque sensor to be calibrated solves numerical control machine The problem of bed main shaft output torque fluctuation measurement inaccuracy.
Detailed description of the invention
Fig. 1 is the overall structure diagram of one embodiment of the invention;
Fig. 2 is the A-A cross-sectional view of Fig. 1.
It is marked in figure:
1. connector;2. top cover;3. barrel support;4. torque sensor to be calibrated;5. walking spool;6. fixing piece;7. spline housing;8. Flower keyboard;9. high-precision torque sensor;10. mounting disc;11. high-precision torque sensor fixed plate;12. scale pan;13. Fixed pulley;14. torque baton pass;15. flat key;16. bearing;17. panel;18. splined shaft;19. disk.
Specific embodiment
With reference to the accompanying drawings, in conjunction with one embodiment, to a kind of static torque calibrating installation provided by the invention and calibration Method is described in detail.
Embodiment
- Fig. 2 referring to Fig.1, a kind of static torque calibrating installation of the present embodiment, cooperation loading device work, including connection Part 1, torque sensor to be calibrated 4, walks spool 5, high-precision torque sensor 9 at outer housing, the torque sensor 4 to be calibrated, Walking spool 5, the setting of high-precision torque sensor 9, chamber, the connector 1 are fixed on torque to be calibrated and pass within the outer shell The upper end of sensor 4, the outer housing include top cover 2, barrel support 3, mounting disc 10, and the top cover 2 is positioned by seam allowance, and is led to The top that screw is fixed on barrel support 3 is crossed, the barrel support 3 is positioned by seam allowance, and bottom is fixed by screws in installation On disk 10, the torque sensor 4 to be calibrated is positioned by seam allowance and screw is used to be fixed on top cover 2, further to school Quasi- torque sensor 4 is fixed on the lower surface of top cover 2, and the high-precision torque sensor 9 and torque sensor to be calibrated 4 pass through Spline housing 7 and flower keyboard 8 connect, and the high-precision torque sensor 9 positions by seam allowance and pass through screw and high-precision torque Sensor fixation plate 11 is mounted in mounting disc 10.
Herein described seam allowance, the yin-yang bank being as commonly called as are the structures for feeling relieved, connecting.
The upper surface of top cover 2 set by outer housing is exposed in the upper end of the torque sensor to be calibrated 4, and passes through flat key 15 It is connected with connector 1, the flat key 15 tightened by nut, anticreep.
It is described walk spool 5 is horizontally disposed is fixed on 3 barrels of walls of barrel support, one end extends to inside barrel support 3, and the other end prolongs Stretch out barrel support 3, the part inside barrel support 3 is long compared with the part extended outside bucket, it is further it is described walk the setting of spool 5 and torsion Square baton pass 14 is in 90 ° of angles, and the barrel support upper and lower part is equipped with away spool 5, and set two, which walk spool, is arranged in parallel, the branch Spool, which is walked, set by support bucket upper and lower part is respectively used to 9 cabling of torque sensor 4 and high-precision torque sensor to be calibrated.
The inner wall of the barrel support 3 is equipped with annular panel, mounting fixing parts 6 in the panel 17, further fixing piece 6 It is positioned and is fixed by screws in panel by seam allowance, bearing 16 is installed, bearing 16 is to support flower on the fixing piece 6 Key set 7 simultaneously adjusts centering.
The flower keyboard 8 includes the splined shaft 18 and disk arranged at the bottom 19 for being located at top, the disk 19 and height Precision torque sensor 9 is fixedly connected by screw, and 8 bottom of spline housing is sleeved on splined shaft 18,7 top of spline housing with to Calibrate torque sensor connection 4
The high-precision torque sensor fixed plate 11 is L shape.
Loading device is connected at the top of the connector 1, the loading device includes torque baton pass 14, fixed pulley 13, weight Code-disc 12, the torque baton pass 14 is horizontally disposed and is fixed on 1 top of connector, the end installation of the torque baton pass 14 Fixed pulley 13, the scale pan 12 are connected on fixed pulley 13.
A kind of static torque calibrating installation is by the seam allowance position assurance concentricity of shafting, by being mounted on bottom end installation High-precision torque sensor on disk calibrates torque sensor to be calibrated, and the calibrating installation of vertical prevents gravity belt Carry out additional torque influence, ensure that pure torsion loads by dedicated loading device.
A kind of use calibration method of static torque calibrating installation is as follows:
(1) torsion calibration device is examined and determine
Torsion calibration device is calibrated by the high-precision torque sensor calibrated, is installed in installation torsion to be calibrated The position of square sensor gradually applies torque to the torsion calibration device is ascending using loading device, until setting value, Torsion calibration device measures torque value, the high-precision that record inspection timing alignment is crossed when the high-precision torque sensor obtains calibrating The high-precision torque sensor that torque sensor and torsion calibration device carry measures the corresponding relationship between torque value, and uses Least square method calculates linear functional relation formula, the high-precision torque sensing carried when actual alignment according to torsion calibration device Device measures torque value and relation function calculates the exact value of the surveyed torque of torque sensor to be calibrated.
(2) output torque of torque sensor to be calibrated is calibrated using the torsion calibration device
1, by torque sensor to be calibrated, by seam allowance positioning, simultaneously screw is fixed on top cover, and torque sensor upper end to be calibrated is logical It crosses flat key to be connected with connector, and is tightened using M36 nut;Torque sensor lower end to be calibrated passes through flat key and connection spline housing It is connected, and is tightened using M48 nut;Torque sensor to be calibrated and high-precision torque sensor pass through spline housing and flower keyboard Connection, spline housing are supported by high-precision bearing and adjust centering.
2, dedicated loading device is connected with connector, by the finger setting of design, is applied by scale pan self gravitation effect Add a little torque, which direction load just which direction to hang up scale pan in, it is ensured that connection inside torsion calibration device at this time Spline housing internal spline side is bonded with the external splines side of transmitting torque flower keyboard completely, it is ensured that all intermediate connection structures are complete At deformation.
3, after Axial Status confirmation, dedicated loading device starts slowly to apply along forward and reverse respectively linearly increasing Torque value until full scale, torsion calibration device shafting has the tendency that rotation, thus make each component undergoes deformation with transmit turn round Square, but do not occur really to rotate.In a calibration process, high-precision torque sensor shows in synchronous recording torsion calibration device Several and torque sensor to be calibrated registration.
It repeats step 3 three times, according to the measured value of each torque measurement point in measurement three times, is counted after system data is handled Calculate the torque compensation value of each torque measurement point of torque sensor to be calibrated.The torque compensation value of obtained each measurement point is arranged Table is as follows:
Torque measurement
Torque compensation value
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, and it is any Those familiar with the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its invents Design is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (8)

1. a kind of static torque calibrating installation, cooperation loading device work, it is characterised in that: including connector, outer housing, to school Quasi- torque sensor walks spool, high-precision torque sensor, the torque sensor to be calibrated, walk spool, high-precision torque passes Chamber, the connector are fixed on the upper end of torque sensor to be calibrated, the shell within the outer shell for sensor setting Body includes top cover, barrel support, mounting disc, and the top cover is positioned by seam allowance, and is fixed by screws in the top of barrel support, institute It states barrel support to position by seam allowance, and bottom is fixed by screws in mounting disc, the torque sensor to be calibrated passes through Seam allowance positions and screw is used to be fixed on top cover, and the high-precision torque sensor and torque sensor to be calibrated pass through spline Set is connected with flower keyboard, and the high-precision torque sensor positions by seam allowance and pass through screw and high-precision torque sensor is solid Fixed board is mounted in mounting disc.
2. static torque calibrating installation according to claim 1, it is characterised in that: the torque sensor to be calibrated it is upper The upper surface of top cover set by outer housing is exposed in end, and is connected with connector by flat key, and the flat key is tightened by nut.
3. static torque calibrating installation according to claim 1, it is characterised in that: it is described walk spool is horizontally disposed is fixed on On barrel support bucket wall, one end is extended to inside barrel support, and the other end extends barrel support.
4. static torque calibrating installation according to claim 1, it is characterised in that: the inner wall of the barrel support is equipped with lattice Plate, mounting fixing parts in the panel are equipped with bearing on the fixing piece.
5. static torque calibrating installation according to claim 1, it is characterised in that: the flower keyboard includes being located at top Splined shaft and disk arranged at the bottom, the disk are fixedly connected with high-precision torque sensor, the spline housing bottom set On splined shaft, it is connect at the top of spline housing with torque sensor to be calibrated.
6. static torque calibrating installation according to claim 1, it is characterised in that: the high-precision torque sensor is fixed Plate is L shape.
7. static torque calibrating installation according to claim 1, it is characterised in that: connection load dress at the top of the connector It sets, the loading device includes torque baton pass, fixed pulley, scale pan, and the torque baton pass is horizontally disposed with and the company of being fixed on At the top of fitting, fixed pulley is installed in the end of the torque baton pass, and the scale pan is connected on fixed pulley.
8. the method calibrated such as static torque calibrating installation of any of claims 1-7, it is characterised in that: tool Body method is as follows:
(1) torsion calibration device is examined and determine
Torsion calibration device is calibrated by the high-precision torque sensor calibrated, is installed in installation torsion to be calibrated The position of square sensor gradually applies torque to the torsion calibration device is ascending using loading device, until setting value, Torsion calibration device measures torque value, the high-precision that record inspection timing alignment is crossed when the high-precision torque sensor obtains calibrating The high-precision torque sensor that torque sensor and torsion calibration device carry measures the corresponding relationship between torque value, and uses Least square method calculates linear functional relation formula, the high-precision torque sensing carried when actual alignment according to torsion calibration device Device measures torque value and relation function calculates the exact value of the surveyed torque of torque sensor to be calibrated;
(2) output torque of torque sensor to be calibrated is calibrated using the torsion calibration device
1, by torque sensor to be calibrated, by seam allowance positioning, simultaneously screw is fixed on top cover, and torque sensor upper end to be calibrated is logical It crosses flat key to be connected with connector, and is tightened using M36 nut;Torque sensor lower end to be calibrated passes through flat key and connection spline housing It is connected, and is tightened using M48 nut;Torque sensor to be calibrated and high-precision torque sensor pass through spline housing and flower keyboard Connection, spline housing are supported by high-precision bearing and adjust centering;
2, dedicated loading device is connected with connector, by the finger setting of design, is applied by scale pan self gravitation effect few Perhaps torque just hangs up scale pan in which direction to which direction load, it is ensured that connect spline inside torsion calibration device at this time Set internal spline side is bonded with the external splines side of transmitting torque flower keyboard completely, it is ensured that all intermediate connection structures are completed to become Shape;
3, after Axial Status confirmation, dedicated loading device starts slowly to apply linearly increasing turn along forward and reverse respectively Square value has the tendency that rotation until full scale, torsion calibration device shafting, thus make each component undergoes deformation to transmit torque, but Do not occur really to rotate.In a calibration process, in synchronous recording torsion calibration device the registration of high-precision torque sensor and The registration of torque sensor to be calibrated;
It repeats step 3 three times, according to the measured value of each torque measurement point in measurement three times, is calculated after system data is handled The torque compensation value of each torque measurement point of torque sensor to be calibrated.
CN201910623129.0A 2019-07-11 2019-07-11 A kind of static torque calibrating installation and calibration method Pending CN110220641A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110849536A (en) * 2019-12-06 2020-02-28 河南牛帕力学工程研究院 Torque sensor calibrating device
CN110823438B (en) * 2019-11-22 2021-04-06 湖南省计量检测研究院 Method for detecting torque value of torque control device

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CN106840517A (en) * 2017-03-02 2017-06-13 天津大学 A kind of decelerator detector output torque calibrator
CN106989868A (en) * 2017-03-02 2017-07-28 天津大学 A kind of calibration method of decelerator detector output torque
CN106996849A (en) * 2017-06-08 2017-08-01 中国船舶重工集团公司第七0四研究所 Standard torque spanner calibrating installation based on air bearings support
CN108760150A (en) * 2018-07-16 2018-11-06 中国航空工业集团公司北京长城计量测试技术研究所 A kind of large size force value asymmetrical load power and torque decouple calibrating installation
CN210802769U (en) * 2019-07-11 2020-06-19 山东省青岛第四十五中学(青岛工贸职业学校) Static torque calibrating device

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Publication number Priority date Publication date Assignee Title
WO2008061629A1 (en) * 2006-11-24 2008-05-29 Horiba Automotive Test Systems Gmbh Device and method for calibrating torque measuring devices
CN104132766A (en) * 2014-08-01 2014-11-05 昆山市创新科技检测仪器有限公司 High-precision torque detection device
CN105509960A (en) * 2015-12-11 2016-04-20 天津七一二通信广播有限公司 Mechanical apparatus applied to calibration of torque sensor, and method
CN106840517A (en) * 2017-03-02 2017-06-13 天津大学 A kind of decelerator detector output torque calibrator
CN106989868A (en) * 2017-03-02 2017-07-28 天津大学 A kind of calibration method of decelerator detector output torque
CN106996849A (en) * 2017-06-08 2017-08-01 中国船舶重工集团公司第七0四研究所 Standard torque spanner calibrating installation based on air bearings support
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110823438B (en) * 2019-11-22 2021-04-06 湖南省计量检测研究院 Method for detecting torque value of torque control device
CN110849536A (en) * 2019-12-06 2020-02-28 河南牛帕力学工程研究院 Torque sensor calibrating device
CN110849536B (en) * 2019-12-06 2024-04-12 天顶星(天津)电子科技有限责任公司 Torque sensor calibrating device

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