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Rotating shaft torque measurement method and system based on wireless technology

A technology of torque measurement and wireless technology, applied in the field of torque measurement of rotating shafts, can solve the problems of reduced safety and reliability, difficult wiring of power supply systems, system interference, etc., and achieves lightweight structure, low power consumption, and good anti-interference ability. Effect

Inactive Publication Date: 2018-12-25
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Telemetry strain measurement method also has some disadvantages
First, due to the additional transmitter and built-in battery on the rotating shaft, it is easy to cause dynamic balance problems at high speeds, and it is more prominent in small ranges and small diameters
Moreover, in the case of high speed, the additional structure is subjected to a large centrifugal force, and the safety and reliability of the system are greatly reduced
Second, due to the rotating shaft system, there are great difficulties in field wiring of the power supply system
Battery powered, only for short-term use, very inconvenient
Third, the system is susceptible to interference from on-site electromagnetic waves

Method used

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  • Rotating shaft torque measurement method and system based on wireless technology
  • Rotating shaft torque measurement method and system based on wireless technology
  • Rotating shaft torque measurement method and system based on wireless technology

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Effect test

Embodiment 1

[0031] Such as Figure 1~6 As shown, the rotating shaft torque measurement system based on wireless technology designed in this embodiment includes a strain gauge type torque sensor 2 , an integrated circuit board 3 , a host computer 4 and a wireless power supply device 5 . in:

[0032] The strain gauge type torque sensor 2 includes four strain gauges 2.1 arranged along the axial direction of the rotating shaft 1 at ±45°, and the four strain gauges 2.1 form a full bridge circuit 2.2, which can output a voltage signal proportional to the torque M, That is, the voltage analog signal.

[0033] The wireless power supply device 5 includes a power receiving component 5.1 and a power transmitting component 5.2. The power transmitting part 5.2 includes a high-frequency signal generator 5.21, a power amplifier circuit 5.22 and an exciting coil 5.23 connected in sequence, and the exciting coil 5.23 is set within the wireless power receiving range of the power receiving part 5.1. The ...

Embodiment 2

[0043] Based on the rotating shaft torque measurement system provided in Embodiment 1, this embodiment provides a method for measuring rotating shaft torque based on wireless technology. The method comprises the steps of:

[0044] 1) When the rotating shaft 1 rotates, the strain gage torque sensor 2 collects a voltage analog signal and transmits it to the strain signal processing module 3.1.

[0045] 2) The strain signal processing module 3.1 performs amplification, filtering and analog-to-digital conversion on the voltage analog signal to obtain a voltage digital signal.

[0046] 3) The data processing module 3.2 receives the voltage digital signal from the strain signal processing module 3.1, and transmits it to the upper computer 4 equipped with the Bluetooth data receiving module 4.1 through the Bluetooth data transmitting module 3.3, and obtains the rotation axis through the processing of the upper computer 4 1 torque value. In this torque system, the torque of the rota...

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Abstract

The invention discloses a rotating shaft torque measurement method and a system based on wireless technology. The method comprises the following steps: 1) collecting a voltage analog signal; 2) performing amplification, filtering and analog-to-digital conversion on the voltage analog signal to obtain a voltage digital signal; 3) transmitting the voltage digital signal to an upper computer througha Bluetooth data transmitting module, and obtaining a torque value of the rotating shaft after being processed by the upper computer; 4) the required power is supplied by wireless power supply. The system comprises a strain gauge torque sensor, an integrated circuit board, an upper computer and a wireless power supply device. The wireless power supply device comprises a power receiving component and a power transmitting component; the upper computer is provided with a Bluetooth data receiving module; the integrated circuit board is integrally provided with a power module, a strain signal processing module, a data processing module, and a Bluetooth data transmitting module. According to the rotating shaft torque measurement method and the system based on wireless technology, the torque measurement accuracy of the rotating shaft is improved by the combined application of wireless power supply and Bluetooth data transmission.

Description

technical field [0001] The invention relates to a rotating shaft torque measurement technology, in particular to a method and system for measuring the rotating shaft torque based on wireless technology. Background technique [0002] With the increasing degree of automation of modern ship power plants, the requirements for dynamic performance indicators of ship power plant systems are also getting higher and higher. During the operation of the ship power plant, the working conditions are more complicated. Unsteady actions such as quick start, sudden acceleration or deceleration, and emergency braking of the ship's power plant will cause the shafting of the power equipment to bear a large instantaneous torque, causing damage to the shafting of the power plant, and also bury the safety of the staff. Hidden danger. Torque is an important technical index to reflect the output power of the shaft transmission and evaluate its working characteristics. Its periodic changes will not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/24
CPCG01L5/24
Inventor 金华标梁卓夫
Owner WUHAN UNIV OF TECH
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