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Loading method of aero-engine intermediate bearing double-rotor test bench

A technology of aero-engine and test bench, which is applied in the direction of mechanical bearing testing, etc. It can solve the problems of unfavorable installation of test devices, difficulties in performance research, and constant adjustment of loads, etc., to achieve safe and reliable variable load experiments, simple loading control, and flexible disassembly.

Inactive Publication Date: 2018-10-16
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The existing loading device of the aero-engine double-rotor test bench has the following disadvantages: the load can only be set before the experiment and cannot be adjusted from time to time according to the feedback load during the experiment, the loading device cannot be remotely controlled, and the space occupied by the loading device Relatively large is unfavorable to the installation of the test device, the control part of the loading device cannot be integrated into the acquisition and analysis program, etc.
This brings difficulties and low reliability to the performance research of intermediary bearings under complex working conditions, and at the same time brings difficulties to the reliability and life prediction of intermediary bearings

Method used

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  • Loading method of aero-engine intermediate bearing double-rotor test bench
  • Loading method of aero-engine intermediate bearing double-rotor test bench
  • Loading method of aero-engine intermediate bearing double-rotor test bench

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Experimental program
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Embodiment Construction

[0014] The present invention will be further elaborated below in combination with the accompanying drawings and the technical solutions of the description.

[0015] According to the requirements of the experiment, the load range during the experiment is 200N-5000N, the oil inlet pump 26 and the oil return pump 29 choose the model 5HP-4PCO5-43B0, the oil inlet and oil return pump inverters 27 and 28 choose VF6004M21D, and the pressure sensor 19 is selected according to the load range The model number is VF6004M21D.

[0016] The experimenter installs the bearing bracket 10 equipped with the bearing 8 for loading on the corresponding position of the test bench through the radial guide groove 11 according to the position where the test bench needs to be loaded, and adjusts the position of the bearing bracket 10 in the radial guide groove 11. To realize the effect of axially fixed and radially guided; the loading bearing 8 is fixed with a bearing end cover. The retaining ring 21 i...

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Abstract

The invention provides an aero engine medium bearing dual rotor test stand loading device, belongs to the field of machining and tools, and relates to an aero engine medium bearing dual rotor test stand loading method. According to the loading method, a loading control system formed by a pressure sensor, a hydraulic system, and a computer control program is adopted for loading; a data acquisition card is connected with a computer through network cables, wherein the computer 18 is provided with a loading system control module compiled by labview and the module is directly called during data acquisition and analysis. The loading method comprises the following steps: installing the loading system, assembling the loading control system, loading and unloading. According to the method, the loading system control program is compatible with the acquisition and analysis program; experimenters timely adjust load size according to real signals and working condition; loading control is simple, accurate, safe and stable so that aero engine medium bearing step-up and step-down loading is realized.

Description

technical field [0001] The invention belongs to the field of mechanical processing and tools, and relates to a loading method for a double-rotor test bench of an aero-engine intermediate bearing. Background technique [0002] Intermediary bearings are widely used in various mechanical equipment, and intermediary bearings are relatively weak links in mechanical equipment, and their performance directly affects the operation of the equipment. Therefore, the research on simulating the actual working conditions of intermediate bearings is particularly important. The aero-engine dual-rotor test bench is designed according to the actual working conditions of the aero-engine. It can simulate the influence of the rotor system failure on the intermediate bearing under complex working conditions, the typical faults of the intermediate bearing, the oil cut-off fault of the intermediate bearing and other typical faults. These experimental studies play an important role in evaluating th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/04
CPCG01M13/04
Inventor 王奉涛王贝敦泊森张涛陈旭涛
Owner DALIAN UNIV OF TECH
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