CN103512705A

CN103512705A - Large-torque multiplier calibration method

Info

Publication number: CN103512705A
Application number: CN201210198519.6A
Authority: CN
Inventors: 刘玉波; 东方; 焦洋; 陈博
Original assignee: HEILONGJIANG HUAAN JINGYI METROLOGY TECHNOLOGY INSTITUTE Co Ltd
Current assignee: HEILONGJIANG HUAAN JINGYI METROLOGY TECHNOLOGY INSTITUTE Co Ltd
Priority date: 2012-06-17
Filing date: 2012-06-17
Publication date: 2014-01-15

Abstract

The invention relates to a large-torque multiplier calibration method. According to a large-torque multiplier in the method, a torque transducer is utilized for calibration. According to the operating principle of the torque multiplier, torque magnitude measurement is carried out by a couple form, and the problem of torque loading in calibration of the large-torque multiplier is solved by a self-adaptive control technology. Torque magnitude measurement is carried out by the couple form, and pure torque is loaded to the torque transducer at an output end of a torque multiplier calibration device. Thus, driving torque and braking torque together form a pair of couples and are mutually balanced. According to the self-adaptive control technology for torque loading, a variable frequency motor is mainly utilized for loading torque, the torque is measured by inputting the torque transducer, and the torque at the output end of the torque multiplier is measured by the utilization of the torque transducer at the output end after the torque multiplier is adopted. The calibration method has advantages of steady loading and accurate control. The torque at the output end of the torque multiplier is steady and accurate.

Description

A kind of method of high pulling torque multiplier calibration

Technical field

The invention belongs to field of mechanical technique, relate to a kind of method of high pulling torque multiplier calibration.

Background technology

Moment of torsion is the size of moment in physics, equals the product of power and the arm of force, is the power that object is rotated.Moment of torsion is an important parameter of engine performance, while referring to engine running, from the average moment of crankshaft end output, is commonly called as " turning strength " for engine.Moment of torsion is larger, and " strength " of engine output is larger, and the variation of speed of crankshaft is also faster.Torque multiplier normally with certain enlargement factor, the device of high moment of torsion output is provided.Generally by output, counter-force arm and importation, formed.Often be applied to the fastening of the industry major diameter main bearing nuts such as the application scenario of Aeronautics and Astronautics field wide range moment of torsion turbine engine and wind-powered electricity generation, nuclear power, traffic, shipbuilding, industry assembling, attaching nut or dismantle.Engine is the power core apparatus of modern large aircraft propelling system, to concern aeroplane performance quality and flight safety whether heart mechanism, and torque multiplier ensures that for being assemblied in of engine its technical feature aspect has irreplaceable effect, therefore, extremely important to the calibration of torque multiplier.Calibration for torque multiplier at present adopts power, rotating speed etc. to calculate conventionally, but be all theoretical value, simultaneously domestic also do not possess to Civil Aviation Engine the measurement technology mechanism in (1～100) kNm scope internal calibration ability with torque multiplier, each company of civil aviaton has proposed the demand of torque multiplier system calibration simultaneously, therefore, this invention has great importance.

Summary of the invention

The object of the invention is to overcome shortcomings and deficiencies of the prior art, provide a kind of method of high pulling torque multiplier calibration, the calibration of the 8111 type torque multipliers that particularly use for civil aviaton.

The present invention adopts following technical scheme to solve high pulling torque multiplier calibration problem.

Torque multiplier is by a circumference or planet wheel, to be combined in various combination stratum to come driven gear rotation to exert oneself, and is expert in star gear train system, and moment of torsion is via central gear input and output.By three or four planet wheels, be combined driven rotary with central gear.Circumference gear in multiplier shell with around internal rows star gear train, engage, but for internal planetary gear rotation, sense of rotation is contrary.The retroaction arm of force can prevent and the shell rotation of circumference gear one, and make planet-shaped gear rotate to drive around central gear, drives square toes rotation, thus output torque.

The high pulling torque multiplier calibration of the present invention's design is to utilize torque sensor to calibrate.According to the principle of work of torque multiplier, adopt couple form to carry out moment of torsion value, adopt adaptive control technology to solve the problem that in the calibration of high pulling torque multiplier, moment of torsion loads.

Moment of torsion value adopts couple form, pure torsion is loaded on the output terminal torque sensor of torque multiplier calibrating installation, makes common a pair of couple the mutual balance of forming of driving torque and braking torque.The adaptive control technology that moment of torsion loads, mainly utilizes variable-frequency motor to load moment of torsion, by this moment of torsion of input torque sensor measurement, by utilizing output terminal torque sensor to measure the output terminal moment of torsion of torque multiplier after torque multiplier.Torque measurement procedure chart as shown in Figure 1.

Moment of torsion transmission of quantity value is traced to the source figure as shown in Figure 2, in figure, and torque standard device measurement range 1Nm ~ 200kNm, uncertainty is 0.05% ~ 0.1%; Torque multiplier calibrating installation measurement range is (0.1 ~ 100) kNm, and uncertainty is 1.0% ~ 1.5%; Torque multiplier measurement range is (0.1 ~ 100) kNm, and the error of indication is ± 3.0% ~ ± 10%.

Of the present invention have a good beneficial effect, the input end of torque multiplier realized to the adaptive control loading, and realizes the object that loads steadily, accurately controls, thereby the output terminal moment of torsion that makes torque multiplier more steadily, accurately.

Accompanying drawing explanation

Fig. 1 is torque measurement procedure chart, and Fig. 2 is the transmission of quantity value figure that traces to the source, wherein, and diagram: 1 moment of torsion producing; 2 variable-frequency motor chargers; 3 input torque sensors; 4 high pulling torque multipliers; 5 output torque sensors; 6 torque standard devices; 7 calibrations; 8 torque multiplier calibrating installations; 9 calibrations; 10 torque multipliers.

Embodiment

In conjunction with above-mentioned accompanying drawing, be described further.Moment of torsion value adopts couple form, pure torsion is loaded on the output terminal torque sensor of torque multiplier calibrating installation, makes common a pair of couple the mutual balance of forming of driving torque and braking torque.Moment of torsion loads and adopts adaptive control technology, mainly utilizes variable-frequency motor 2 to load moment of torsion 1, by input torque sensor 3, measures this moment of torsion, by the rear output terminal moment of torsion that utilizes output terminal torque sensor 5 to measure torque multiplier of torque multiplier 4.

Claims

1. one kind relates to the method that high pulling torque multiplier is calibrated, it is characterized in that: the calibration of high pulling torque multiplier is to utilize torque sensor to calibrate, according to the principle of work of torque multiplier, adopt couple form to carry out moment of torsion value, adopt adaptive control technology to solve the problem that in the calibration of high pulling torque multiplier, moment of torsion loads.

2. the method that high pulling torque multiplier according to claim 1 is calibrated, it is characterized in that: moment of torsion value adopts couple form, pure torsion is loaded on the output terminal torque sensor of torque multiplier calibrating installation, makes common a pair of couple the mutual balance of forming of driving torque and braking torque.

3. the method that high pulling torque multiplier according to claim 1 is calibrated, it is characterized in that: the adaptive control technology that moment of torsion loads, mainly utilize variable-frequency motor to load moment of torsion, by this moment of torsion of input torque sensor measurement, by utilizing output terminal torque sensor to measure the output terminal moment of torsion of torque multiplier after torque multiplier.