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Intelligent tilting pad thrust bearing device

A thrust bearing, intelligent technology, applied in sliding contact bearings, engine components, engine lubrication, etc., can solve the problem of tilting pad thrust bearings prone to eccentric load, etc., and achieve the effects of convenient control, easy installation and simple structure

Inactive Publication Date: 2013-05-01
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that tilting pad thrust bearings are prone to eccentric loads, the present invention aims to propose an intelligent tilting pad thrust bearing device with simple structure, easy installation and convenient control, which can detect and quickly solve the problem of eccentric loads. The device can greatly improve the service life of the tilting pad thrust bearing

Method used

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  • Intelligent tilting pad thrust bearing device

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Embodiment Construction

[0021] The present invention is described in further detail below in conjunction with accompanying drawing:

[0022] see figure 1 As shown, an intelligent tilting pad thrust bearing device of the present invention includes a state-adjustable tilting pad thrust bearing and a detection control circuit. The state-adjustable tilting pad thrust bearing includes a thrust plate 1 , a pad block 2 , a top block 4 , a guide plate 5 , a rubber washer 6 , a piezoelectric ceramic stack 8 , a base 9 and bolts 10 . The upper end surface of the top block 4 has a tip 3 with a step in the middle, and the cross section of the main body of the top block 4 is rectangular. The pad 2 is supported by the top 3, and the rubber washer 6 is sandwiched between the guide plate 5 and the step of the top block 4. The guide plate 5 and the top block 4 are clearance fits to ensure that the top block 4 can move up and down. The piezoelectric ceramic stack 8 is bonded between the lower end surface of the top...

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Abstract

The invention discloses an intelligent tilting pad thrust bearing device, which comprises a thrust disc, pads, jacking blocks, guide discs, rubber washers, piezoelectric ceramic stacks, bolts, a base, strain gauges, a strain signal conditioning circuit, piezoelectric ceramic power supplies, an AD (Analog-Digital) converter and a controller, wherein the controller is matched with the AD converter and the strain gauges for measuring bearing capacity of the pads, takes the bearing capacity as negative feedback, controls the piezoelectric ceramic stacks to generate micrometric displacement, actively adjusts gaps among the pads and the thrust disc, and changes the thickness of a lubricating film. The device is simple in structure, easy to mount and convenient to control, can timely find and quickly solve the problem of unbalance loading of a tilting pad thrust bearing, and can prolong the life of the tilting pad thrust bearing greatly.

Description

technical field [0001] The invention belongs to the technical field of bearing devices, in particular to a sliding bearing device. Background technique [0002] The tilting pad thrust bearing has large bearing capacity, good stability and high self-centering ability, and is widely used in high-speed and heavy-duty machinery such as turbo generators and blowers. However, due to poor processing and installation, as well as deformation of the thrust plate, rotor and pads, etc., the thickness of the lubricating film of a certain pad will be smaller than that of other pads, resulting in a large local bearing capacity and high temperature rise of this pad, which eventually leads to Abnormal operation of the main engine may cause wear and tear of sliding bearings, and serious accidents such as burning of tiles and shaft holding. Once an accident occurs, it will be shut down for repairs, delaying production and causing huge economic losses. [0003] For the eccentric load problem o...

Claims

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Application Information

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IPC IPC(8): F16C25/04F16N1/00
Inventor 徐华熊显智王琳付玉敏周夕维
Owner XI AN JIAOTONG UNIV
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