CN110849536B - Torque sensor calibrating device - Google Patents
Torque sensor calibrating device Download PDFInfo
- Publication number
- CN110849536B CN110849536B CN201911242626.2A CN201911242626A CN110849536B CN 110849536 B CN110849536 B CN 110849536B CN 201911242626 A CN201911242626 A CN 201911242626A CN 110849536 B CN110849536 B CN 110849536B
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- torque sensor
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- 238000005096 rolling process Methods 0.000 claims 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 6
- 235000017491 Bambusa tulda Nutrition 0.000 description 6
- 241001330002 Bambuseae Species 0.000 description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 6
- 239000011425 bamboo Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
- G01L25/003—Testing 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 relates to a torque sensor calibration device which comprises a fixed support, wherein a torque application assembly is connected to the fixed support, the torque application assembly is provided with an instrument connecting end used for transmitting torque to an instrument to be detected, and the torque application assembly comprises a motor and a standard torque sensor which are vertically arranged in series. When the invention is used, the fixed support is arranged on the supporting surface, a counter-force basis is provided for the torque application assembly, the motor in the torque application assembly provides the torque required by calibration, the motor is used for replacing the existing manual hand-held torque application arm, and the non-torque deflection force caused by manual operation is avoided, so that the calibration precision is improved.
Description
Technical Field
The present invention relates to a torque sensor calibration device in the field of torque calibration.
Background
In actual production and life, for instruments with torque sensors, the torque sensors need to be calibrated regularly, and in the prior art, the torque sensors are calibrated through standard torque wrenches.
The existing standard torque wrench is as disclosed in Chinese patent with publication number CN110196138A, application name of the standard torque wrench and torque wrench calibrating device, and comprises a torque applying arm and a standard torque sensor with a first torque transmitting joint and a second torque transmitting joint, wherein the second torque transmitting joint is used for being connected with a tested device, the standard torque wrench further comprises a corrugated pipe coaxially arranged with the standard torque sensor, and the corrugated pipe is connected between the first torque transmitting joint and the torque applying arm in a rotation stopping manner.
When the device is used, an operator holds the torque applying arm, applies torque in the horizontal direction to the corrugated pipe through the torque applying arm, transmits the torque to the detected instrument through the standard torque sensor, and calibrates the detected torque sensor through comparing the indication value of the torque sensor of the detected instrument with the indication value of the standard torque sensor. The corrugated pipe is arranged because when an operator holds the torque applying arm, the torque applying arm is ideally applied in a horizontal direction, but due to the problem of the holding angle or experience of the operator, the torque applying arm can generate deflection acting force in the vertical direction, and by utilizing the characteristic of the corrugated pipe, the torque can be transmitted, but the characteristic of buffering acting force in the vertical direction through vertical expansion and contraction deformation is realized, so that only the torque can be transmitted to the standard torque sensor. The existing calibration device has the following problems: the use of bellows reduces to some extent the up-down deflection force of the applied torque arm on the standard torque sensor, but it cannot eliminate the existence of this force fundamentally.
Disclosure of Invention
The invention aims to provide a torque sensor calibration device, which is used for solving the technical problem that in the prior art, the vertical deflection acting force is easy to generate by applying force through a hand-held torque arm.
In order to solve the technical problems, the technical scheme in the invention is as follows:
a torque sensor calibration device comprises a fixed support, wherein a torque application assembly is connected to the fixed support, the torque application assembly is provided with an instrument connecting end used for transmitting torque to an instrument to be detected, and the torque application assembly comprises a motor and a standard torque sensor which are vertically arranged in series.
The Shi Niu assembly also includes a bellows extending in an up-down direction along an axis disposed in series with the motor, standard torque sensor.
The fixed support is fixedly provided with a reaction arm.
The motor, the standard torque sensor and the corrugated pipe are coaxially and sequentially arranged along the up-down direction.
The fixed support includes a support cylinder and a top connecting plate arranged at the top of the support cylinder, and the motor, the standard torque sensor and the corrugated pipe are all arranged at the inner side of the support cylinder, and a motor shell of the motor is fixed on the top connecting plate.
The support cylinder is arranged coaxially with the motor, the standard torque sensor and the bellows.
The upper end of the corrugated pipe is provided with an upper connecting plate fixedly connected with the lower end of the standard torque sensor, the lower end of the corrugated pipe is provided with a lower connecting plate, and the instrument connecting end is arranged on the lower connecting plate.
A rotary bearing is arranged between the lower connecting plate and the inner wall of the supporting cylinder, the instrument connecting end and the supporting cylinder are coaxially arranged, a bearing inner ring of the rotary bearing is fixed on the lower connecting plate, and a bearing outer ring of the rotary bearing is assembled on the supporting cylinder in a guiding and moving way along the up-down direction.
The inner wall of the supporting cylinder is provided with a guide key strip extending along the up-down direction, and the bearing outer ring of the rotating bearing is connected with the guide key strip in a rotation-stopping way and is in guide fit in the up-down direction.
The beneficial effects of the invention are as follows: when the invention is used, the fixed support is arranged on the supporting surface, a counter-force basis is provided for the torque application assembly, the motor in the torque application assembly provides the torque required by calibration, the motor is used for replacing the existing manual hand-held torque application arm, and the non-torque deflection force caused by manual operation is avoided, so that the calibration precision is improved.
Drawings
FIG. 1 is a state of use diagram of one embodiment of the present invention.
Detailed Description
An embodiment of a torque sensor calibration device is shown in fig. 1: including fixed stay 2 and the assembly of giving turns to round, fixed stay includes support section of thick bamboo 3 and sets up in the top connecting plate 1 at support section of thick bamboo top in this embodiment, the assembly of giving turns to round includes motor 7, standard torque sensor 8 and bellows 10 that are established ties in order along upper and lower direction coaxial line, support section of thick bamboo 3 coaxial line cover is located the periphery of motor 7, standard torque sensor 8 and bellows 10, the motor in this embodiment is electric motor, the motor casing of motor is fixed in on the top connecting plate 1, torque sensor's upper end and the torque output shaft fixed connection of motor, the upper end of bellows 10 is equipped with the upper connecting plate 9 with standard torque sensor lower extreme fixed connection, the lower extreme of bellows 10 is equipped with down connecting plate 4, be provided with the instrument link 5 that is used for to the instrument transmission moment of being examined on the lower connecting plate 4, instrument link in this embodiment is square tenon structure. The outer side of the supporting cylinder is fixedly provided with a counter force arm 11. The corrugated pipe in this embodiment is a stainless steel corrugated pipe, for example, a stainless steel corrugated pipe of taixin TX-005 manufactured by taixin corrugated pipe limited company of dune.
A rotary bearing is arranged between the lower connecting plate 4 and the inner wall of the supporting cylinder 3, and through the arrangement of the rotary bearing, the square tenon structure of the instrument connecting end is arranged coaxially with the supporting cylinder, the bearing inner ring 16 of the rotary bearing is fixed on the lower connecting plate, and the bearing outer ring 14 of the rotary bearing is assembled on the supporting cylinder along the guiding movement of the upper and lower directions. In this embodiment, a guide key bar 15 extending in the up-down direction is provided on the inner wall of the support cylinder 3, a guide key groove matched with the guide key bar is provided on the outer periphery of the bearing outer ring of the rotary bearing, and the bearing outer ring is in anti-rotation connection with the support cylinder and in guide matching in the up-down direction through the matching of the guide key bar and the guide key groove.
During the use, to be examined instrument 6 is fixed in on the holding surface 13, be equipped with dead lever 12 on the holding surface, with the support tube cover in the instrument periphery of being examined, square tenon structure inserts in the square tenon hole of being examined instrument, owing to the positioning action of slewing bearing, bellows, standard torque sensor keeps coaxial arrangement form with the support tube, the use of bellows, on the one hand can transmit the moment of torsion, the characteristic that can flexible adjustment of bellows axial is utilized in addition for the height of instrument link can be according to the highly adaptable adjustment of square tenon hole, that is, when to different instruments of being examined, the interval between square tenon hole distance holding surface probably is different, but square tenon can be adaptively adjusted and be connected in place with Fang Sunkong, in order to simulate real square tenon hole and square tenon cooperation condition. The motor works, the motor output shaft of motor is the motor shaft and is given standard torque sensor with the moment of torsion transmission, and then gives the instrument of examining through the bellows transmission, when the required output moment of torsion of instrument of examining is less, the frictional force between support section of thick bamboo and the holding surface can guarantee that support section of thick bamboo is motionless, the demonstration value through the instrument of examining compares with standard torque sensor's demonstration value and carries out the calibration to the instrument of examining, when the required output moment of torsion of instrument of examining is great, prevents through the fender of reaction arm and dead lever that support section of thick bamboo receives the action of counter force effect. In the invention, the torque output is realized through the motor, so that the problem that the deflection force possibly occurs due to manual handheld operation is avoided.
In other embodiments of the invention: the counter-force arm may also be omitted when calibrated against the desired small output torque; when aiming at a certain type of detected instrument, the corrugated pipe is not required to be arranged because the heights of the square mortises of the detected instrument and the supporting surfaces are consistent; the sequence among the motor, the standard torque sensor and the corrugated pipe can be adjusted, for example, the corrugated pipe is connected between the standard torque sensor and the motor, or the corrugated pipe is arranged at the uppermost side, then the motor, the standard torque sensor or the standard torque sensor and the motor are arranged in sequence below, and the standard torque sensor can be arranged at the uppermost side; according to different stress structures of the detected instrument, the instrument connecting end on the standard torque sensor can be adjusted in an adaptive manner, for example, when the stress structure on the detected instrument is a square tenon, the instrument connecting end can be of a square tenon hole structure which is matched with the stress structure.
Claims (2)
1. A torque sensor calibration device, characterized by: the device comprises a fixed support, the fixed support is connected with a torsion component, the torsion component is provided with an instrument connecting end for transmitting torque to an instrument to be detected, the torsion component comprises a motor and a standard torque sensor which are arranged in series along the vertical direction, the torsion component further comprises a corrugated pipe which is arranged in series along the vertical direction and extends along the axis of the motor and the standard torque sensor, the fixed support comprises a support cylinder and a top connecting plate arranged at the top of the support cylinder, the motor, the standard torque sensor and the corrugated pipe are all arranged on the inner side of the support cylinder, a motor shell of the motor is fixed on the top connecting plate, the support cylinder is arranged coaxially with the motor, the standard torque sensor and the corrugated pipe, the upper end of the corrugated pipe is provided with an upper connecting plate fixedly connected with the lower end of the standard torque sensor, the lower end of the corrugated pipe is provided with a lower connecting plate, a rolling bearing is arranged between the lower connecting plate and the inner wall of the support cylinder, the standard torque sensor, the instrument connecting end and the support cylinder are arranged coaxially, the inner ring of the rolling bearing is fixed on the lower connecting plate, the outer ring of the rolling bearing is assembled on the support cylinder in a guiding way along the vertical direction, the upper and lower direction is assembled on the inner wall of the support cylinder, the upper end of the rolling bearing is arranged on the upper connecting rod and the upper end of the rolling bar is matched with the upper rolling bar and lower rolling bar.
2. The torque sensor calibration device of claim 1, wherein: the fixed support is fixedly provided with a reaction arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911242626.2A CN110849536B (en) | 2019-12-06 | 2019-12-06 | Torque sensor calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911242626.2A CN110849536B (en) | 2019-12-06 | 2019-12-06 | Torque sensor calibrating device |
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| Publication Number | Publication Date |
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| CN110849536A CN110849536A (en) | 2020-02-28 |
| CN110849536B true CN110849536B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911242626.2A Active CN110849536B (en) | 2019-12-06 | 2019-12-06 | Torque sensor calibrating device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197958A (en) * | 2020-09-24 | 2021-01-08 | 天津理工大学 | Vertical test bench of shaft coupling |
| CN115077789B (en) * | 2022-08-17 | 2022-11-22 | 南京市计量监督检测院 | Simply supported force value sensor magnitude tracing device and calibration method |
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