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Birotor fault simulation experiment device

A fault simulation and experimental device technology, applied in the testing of measuring devices, instruments, mechanical parts, etc., can solve the problems of complex rotor vibration and high rotation speed, and achieve the effect of clear principle, easy implementation, and avoidance of failure.

Active Publication Date: 2014-04-30
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the dual-rotor structure, the inner rotor and the outer rotor are coupled to each other, and the rotation speed is high, and the rotor vibration is more complicated

Method used

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Embodiment Construction

[0033] The principle, structure and working process of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0034] Such as figure 1 As shown, the dual-rotor fault simulation experiment device includes a test bench base 18, a rotor base 17, an inner rotor 16, an outer rotor 9, a first drive motor 1 and a second drive motor 4; the first motor passes through the first coupling 2 It is connected with the inner rotor 16; the inner rotor 16 passes through the outer rotor 9, and the two ends are supported on the rotor base 17 through the bearing seat 11; The tooth plate 15, the first key phase plate 3 is installed at one end close to the first motor; the outer rotor 9 is equipped with the second key phase plate 12, the second tooth plate 10, the second wheel disc 8 and the squirrel cage elastic support fixed plate 7 , the protective sleeve 6 is installed on the squirrel cage elastic support fixed plate, the second key phase...

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Abstract

The invention discloses a birotor fault simulation experiment device. Based on a gas turbine birotor test bed, a movable-static rubbing support with a force sensor, a movable-static rubbing block, a movable-movable rubbing adjusting bolt with an adjustable gap and the like are used for simulating a rotor rubbing fault and measuring the impact force in the horizontal direction. Fine-grained metal chips are filled into a bearing lubricating cavity to simulate a bearing abrasion fault. Stainless gap pieces with different thicknesses are combined with a bearing block, and a rotor misalignment fault is simulated. Through a positioning hole and a mass block of a wheel disc and matching of a bonded phase plate, a mass unbalance fault of a rotor with the adjustable mass and phase is simulated. A disc-shaped spring and a bearing block are used for simulating a looseness fault of the bearing block with the adjustable looseness. The birotor fault simulation experiment device can be used for simulating the faults of rotor rubbing, bearing abrasion, rotor misalignment, rotor mass unbalance and bearing block looseness of a gas turbine birotor system, the accuracy of fault analysis of the gas turbine birotor system is improved, and experiment reference data are provided for simulation calculation.

Description

technical field [0001] The invention belongs to the technical field of gas turbine double-rotor system experimental equipment, in particular to a fault simulation experiment device for the gas turbine double-rotor structure. Background technique [0002] As a power device with high efficiency and high output power, gas turbine is widely used in national defense and industrial fields. Ship and aviation gas turbines often adopt a multi-rotor structure, of which the double-rotor structure is more widely used. At present, the dual-rotor experimental devices established by universities and scientific research institutions are mostly used to study the dynamic characteristics of the dual-rotor structure under normal conditions. Invention patent application number CN201310179723.8 relates to a comprehensive dynamics experimental device consisting of a two-axis basic turntable providing basic motion and an aero-engine double-rotor model test bench. The utility model patent applicat...

Claims

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Application Information

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IPC IPC(8): G01M13/00
Inventor 蒋东翔徐洪志刘超
Owner TSINGHUA UNIV
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