An experimental device and method for testing dynamic characteristics of a series of variable shaft diameter sliding bearings

A technology of sliding bearings and experimental devices, which is applied in the direction of mechanical bearing testing, vibration testing, measuring devices, etc., can solve the problems of not giving different shaft diameter series bearing testing devices and identification methods, etc.

Active Publication Date: 2019-04-16
XI AN JIAOTONG UNIV
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  • Application Information

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Problems solved by technology

At present, the performance test of radial sliding bearings is mainly to carry out the test experiment of load capacity and dynamic characteristic coefficient. Sliding bearings with fixed shaft diameters are tested, and no testing devices and identification methods for bearings with different shaft diameters are given.

Method used

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  • An experimental device and method for testing dynamic characteristics of a series of variable shaft diameter sliding bearings
  • An experimental device and method for testing dynamic characteristics of a series of variable shaft diameter sliding bearings
  • An experimental device and method for testing dynamic characteristics of a series of variable shaft diameter sliding bearings

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Embodiment Construction

[0015] The structural principle and working principle of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0016] see figure 1 , the structure of the tested series of radial sliding bearings is as follows: the tested series of radial sliding bearings 18 and the variable radial bearing sleeve 17, the journal 14 and the variable radial sleeve 20, the variable radial sleeve 20 through The flat key 19 is connected to the journal 14, and the radial sliding bearing 18 of the tested series is connected and fixed between the first shaft end cover 24 and the second shaft end cover 25 through a cylindrical pin, and is connected with the variable radial bearing sleeve 17 by screws. connect. By replacing different variable radial shaft sleeves 20 and variable radial bearing sleeves 17, it is guaranteed to measure the inner and outer diameters of the series of tested series radial sliding bearings 18 with different shaft diame...

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Abstract

The invention relates to an experimental device and method for a dynamic characteristic test of a series of variable axial diameter sliding bearings. The experimental device includes a driving system,a journal part , a lubricating system of the journal part, and a data acquisition system, wherein the driving system is composed of a asynchronous motor and a frequency converter; the asynchronous motor is connected to one end of the journal through a high-speed flexible coupling; the journal is supported through two antifriction bearings, and lubricates the antifriction bearings through an oil gas lubricator; the data acquisition system is composed of a sensor, amplifier of the sensor and a computer; the data measured by the sensor is collected by a collection card and is input into the computer for storage; a rotor is driven by the motor; and a loading device changes the static load and the dynamic load of the bearings. Therefore, the experimental device and method for a dynamic characteristic test of a series of variable axial diameter sliding bearings can measure the dynamic characteristics of the dynamic pressure radial sliding bearings in a variable axial diameter.

Description

technical field [0001] The invention relates to the technical field of performance testing of sliding bearings, in particular to an experimental device and method for dynamic characteristics of variable shaft diameter series dynamic pressure radial sliding bearings. Background technique [0002] Fluid lubricating film pressure is the basis for the sliding bearing to float the rotor and form a complete hydrodynamic fluid lubrication between the journal and the working surface of the bearing pad, and it is also one of the important performance parameters of the dynamic pressure radial bearing. At present, the performance test of radial sliding bearings is mainly to carry out the test experiment of load capacity and dynamic characteristic coefficient. The sliding bearing with a fixed shaft diameter is tested, and the test device and identification method suitable for bearings with different shaft diameter series are not given. Some existing literatures describe in detail the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/04G01M7/02
CPCG01M7/02G01M13/045
Inventor 杨利花吴垚吴达涛徐腾飞
Owner XI AN JIAOTONG UNIV
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