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A test system for testing the vibration characteristics of a double asymmetric bearing rotor system

A technology of vibration characteristics and test system, which can be used in mechanical bearing testing, mechanical component testing, machine/structural component testing, etc. It can solve problems such as parameter vibration testing of double asymmetric bearing rotor systems, and expand the scope of research. The effect of improving the design level and reducing the amplitude of the vibration response

Active Publication Date: 2019-05-24
XI AN JIAOTONG UNIV
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Problems solved by technology

[0003] The purpose of the present invention is to provide a test system for testing the vibration characteristics of a double asymmetric bearing rotor system to solve the problem of parameter vibration testing of a double asymmetric bearing rotor system

Method used

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  • A test system for testing the vibration characteristics of a double asymmetric bearing rotor system
  • A test system for testing the vibration characteristics of a double asymmetric bearing rotor system
  • A test system for testing the vibration characteristics of a double asymmetric bearing rotor system

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0033] see Figure 1-Figure 4 , a test system for testing the vibration characteristics of a double asymmetric bearing rotor system, comprising a first acceleration sensor 1, a displacement sensor 2, a rotational speed measuring instrument 3, a second acceleration sensor 4, a data collector 5, a computer 6, an assembly platform 7, Speed ​​regulating motor 8, asymmetric bearing generating device 9, first dynamic balance plate 10, center disc 11, second dynamic balance plate 12, bearing support 13, unbalance hole 14, unbalance bolt 15, plastic contact piece 16 , brake device 17, flexible coupling 18, fastening bolt 19, drive motor mounting support 20, asymmetric shaft 21, bolt structure 22, nonlinear spring 23, adjusting dial 24, bulletproof glass cover 25.

[0034] A test system for testing the vibration characteristics of a double asymmetric bearing rotor sy...

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Abstract

The invention discloses a test system of the vibration characteristic test of a dual asymmetrical roller rotor system. The test system comprises a dual asymmetric characteristic generator; the dual asymmetric characteristic generator comprises an assembly platform, a variable-speed motor and two asymmetric roller generators; the variable-speed motor and two asymmetric roller generators are fixedly installed on the assembly platform; an output roller of the variable-speed motor via a flexible coupling joint is connected with the asymmetric roller, the asymmetry roller is supported on the bearings of the two asymmetric roller generators; a number of balance plates are mounted on the asymmetric roller between the two asymmetric rollers. The test system can be used for the studying of the laws of instability, rubbing, unbalanced response, dynamic balance and the like under different roller asymmetric combinations, and the scope of the study on the vibration characteristics of the rotor is effectively expanded. By the adoption of the test results obtained using the test system, accurate data are provided for the design of the dual asymmetric roller rotor system and on site dynamic balance.

Description

technical field [0001] The invention belongs to the field of bearing rotor system testing, and in particular relates to a test system for testing the vibration characteristics of a double asymmetric bearing rotor system. Background technique [0002] In actual industrial production, there are a large class of rotating machines with asymmetric rotors or stators, such as generators, motors, crankshafts, fans, and cracked rotors. From a strict definition, a completely symmetrical rotor system should have both an axisymmetric rotor and an isotropic support structure, which is a very stringent condition for most rotating machines. In order to achieve specific functions, the actual rotor structure often needs to install corresponding working parts on it. For example, in order to meet the power generation requirements of the steam turbine generator rotor, slots need to be slotted on the shaft body. The bearing body is divided into large teeth and small teeth. The rotor body is an ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/045
CPCG01M13/04G01M13/045
Inventor 谢永慧郑召利张荻
Owner XI AN JIAOTONG UNIV
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