Water lubrication bearing dynamic characteristic parameter test device

Abstract

The invention relates to a water lubrication bearing dynamic characteristic parameter test device. The device is formed by a driving device, a loading and measuring device, an auxiliary device and a water lubrication bearing, the driving device mainly comprises a driving motor, a high-elastic coupling and a coupling shaft segment, the loading and measuring device mainly comprises a static force loading device, a dynamic force loading device and a dynamic force and response measurement device, the dynamic force and response measurement device can be used for measuring a vibration acceleration and a dynamic force, and the auxiliary device mainly comprises a roller bearing and support, a dynamic sealing device, a loading device support frame, and a water tank etc. According to the device, under the loading effect of the static force and the dynamic force, direct measurement of the radial rigidity and damping of the water lubrication bearing is realized, the structure is simple, measurement data is reliable, measuring results can provide reliable input parameters for calculation and assessment of the shafting vibration characteristics employing the water lubrication bearing and provide experiment bases for the design of the water lubrication bearing.

Description

technical field [0001] The invention relates to the field of testing dynamic characteristic parameters of water-lubricated bearings, in particular to a testing device for dynamic characteristic parameters of radial stiffness and damping of water-lubricated bearings. Background technique [0002] Sliding bearings are widely used in modern industrial machinery because of their simple structure and good dynamic performance under high-speed and heavy-load conditions. In the field of ships, due to the particularity of the working environment of the propulsion shafting, water-lubricated bearings using seawater as the direct lubrication medium have been widely used. [0003] People have carried out a lot of research on the lubrication mechanism and characteristics of water-lubricated bearings, bearing structural parameters, material formulations, water film pressure and friction characteristics. For example, Huazhong University of Science and Technology (Development of Comprehensi...

AI Technical Summary

Problems solved by technology

[0006] Judging from the published information, there are many stiffness testing devices for rolling bearings and hydrostatic bearings, but relatively few testing devices for stiffness and damping of more complex water-lubricated bearings

In view of the large number of applications of water-lubricated shafting in the field of ships, its radial stiffness and damping are two important parameters in the radial support characteristics of bearings, which will not only affect its own stress, strain, friction and wear characteristics, but also It has a huge impact on the vibration of the entire shafting system and even the vibration of the stern structure of the hull, which in turn affects the propulsion efficiency, operational reliability and operational safety of the shafting system

Images