Method and device for monitoring operation of plain bearing

A technology for sliding bearings and sliding surfaces, applied in sliding contact bearings, bearings with rotating motion, bearings, etc., can solve problems such as unreliable temperature estimation and incorrect measurement

Inactive Publication Date: 2004-05-19
ALSTOM TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, on the one hand, there is a risk of incorrect measurements due to the lubricant being introduced; on the other hand, the proposed measurement method can only be used for special bearings, that is, bearings that can work with excess lubricant
In addition, the temperature inference in the bearing gap is very unreliable, because the measured medium obviously does not come from the bearing gap

Method used

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  • Method and device for monitoring operation of plain bearing
  • Method and device for monitoring operation of plain bearing

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Embodiment Construction

[0013] A bearing section of a hydrodynamic plain bearing with lubricating film temperature monitoring according to a preferred embodiment of the invention is shown in the drawing. The hydrodynamic plain bearing 20 of this figure consists of several bearing segments, of which only bearing segment 11 is shown, which is provided with a high-pressure lubrication system, for example an oil lifting device, which is not completely represented by a pump 28 . Such a bearing segment is arranged in particular in the lower region of the bearing. An adequate hydrodynamic lubrication film cannot be built up when the shaft supported in the bearing is at low speeds. Oil lifting devices of this type are therefore only used in heavily loaded bearings. First, before the shaft is started, the lubricant is pressed by the high-pressure pump 28 into the bearing gap (not shown) through the lubricant channel 15 in the standstill state, and the load to be supported is lifted ideally from the sliding ...

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Abstract

The invention relates to a method for monitoring the operation of a plain bearing, whereby a lubricant channel (15), for a bearing segment (11), which is provided for provision of, for example, lifting oil, is used during hydrodynamic operation of the plain bearing for the taking of a sample for a temperature monitoring. A switching device (19) opens a flow path from the lubricant channel (15) into a drain channel (23) to initiate the measuring operation, such that lubricant from the lubricating film (13) flows through the lubricant channel, the temperature of which is determined by a temperature probe (16, 18).

Description

technical field [0001] The invention relates to a method for monitoring the operation of a plain bearing according to the preamble of claim 1 . The invention also provides a plain bearing which is particularly suitable for carrying out the invention. Background technique [0002] In hydrostatic or hydrodynamic plain bearings, the actual bearing is assumed by a lubricating film consisting of a liquid (e.g. oil), the temperature measurement of the lubricant in the lubricating film or the temperature measurement on the adjacent sliding surface gives The state of the bearings is therefore particularly well suited for job monitoring. [0003] EP 0 161 644 discloses monitoring the temperature in the region of the sliding layer on sliding bearings for early detection of damage, so that in the event of a significant temperature increase, preventive measures can be taken in good time. In this case, however, the recording of the temperature change of the lubricating material has a c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C17/24F16C32/06F16C33/10F16C37/00
CPCF16C17/24F16C33/10F16C32/0644F16C37/002F16C17/02F16C17/243F16C33/105F16C2300/02F16C2233/00
Inventor 阿克塞尔·京特·阿尔伯特·菲尔斯特卡米尔·马蒂泽克
Owner ALSTOM TECH LTD
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