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Rotating parts and components dynamic balance method based on strain

A technology of parts and balance force, which is applied in the field of dynamic balance of rotating parts based on strain, can solve problems affecting the performance of dynamic balancing machines, measurement accuracy limitations, etc., and achieve the effect of batch operation of dynamic balancing process

Inactive Publication Date: 2015-06-03
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dynamic characteristics of the pendulum system directly affect the performance of the dynamic balancing machine, so its measurement accuracy is limited

Method used

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  • Rotating parts and components dynamic balance method based on strain
  • Rotating parts and components dynamic balance method based on strain
  • Rotating parts and components dynamic balance method based on strain

Examples

Experimental program
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Embodiment Construction

[0053] This embodiment is based on figure 1 The rotating parts test rig shown as an example is analyzed based on the strain-based rotor unbalance correction method. refer to Figure 2-7 .

[0054] The method for completing the unbalance correction of the rotating parts by measuring the strain involved in this embodiment is:

[0055] A. Install the rotating parts to be tested on the dynamic balance testing bench through the universal joint;

[0056] B. Install an eddy current sensor on the shaft section of the dynamic balance test bench, align the eddy current sensor with the keyway, and measure the pulse signal of the speed, which is used as a benchmark for multi-measuring point synchronous whole-cycle sampling analysis;

[0057] C. Select two measuring sections on the surface of the rotating shaft of the dynamic balance testing bench to install strain measuring points. Between the support bearings, two sets of strain gauges should be arranged on each section, one set of s...

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Abstract

The invention discloses a rotating parts and components dynamic balance method based on strain. The rotating parts and components dynamic balance method based on strain finishes unbalance correction of the rotating parts and components through the strain in the rotating process of the rotating parts and components. The rotating parts and components dynamic balance method based on strain is free from mass test, can directly figure out a scale which is needed to be aggravated and an angle which is needed to be aggravated through strain data, is low in dynamic balance theory level which is required to master and is suitable for all technical staffs. The rotating parts and components dynamic balance method based on strain is an online dynamic balance method, has the advantages of being rapid and convenient and can achieve mass operation of parts and components dynamic balance craft.

Description

technical field [0001] The invention relates to a strain-based dynamic balancing method for rotating components. Background technique [0002] Rotating components are the most commonly used, basic and important components in mechanical systems, and have been widely used in aviation, electric power, petroleum, chemical and other fields. Among them, the rotor is the most common type of rotating parts. For high-speed rotating bodies such as flywheels, turntables, and clutches, due to the material properties of the rotors, processing and assembly errors, etc., unbalanced mass distributions of different sizes are caused, resulting in the misalignment between the center of mass of the rotor and the actual center of rotation. The main inertial axis deviates from its corresponding axis of rotation, which will generate a large centrifugal force, resulting in greater vibration of the equipment, thereby accelerating the wear of machine parts, affecting the working performance of the e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M1/38
Inventor 杨建刚张世东
Owner SOUTHEAST UNIV
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