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Lubricant supply state monitoring sensor and device

A lubricant and sensor technology, applied in the field of sensors and devices, can solve the problems of insufficient accuracy, difficult signal, unobtainable, etc., and achieve the effect of increasing output and accurate monitoring

Inactive Publication Date: 2009-01-14
JFE STEEL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, it is difficult to obtain a sufficiently large signal in this method of applying the pulsating pressure of the lubricant to the piezoelectric element connected to the flow path.
There is a problem of insufficient accuracy because it is not possible to obtain sufficient output to grasp the lubricant supply state in actual use

Method used

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  • Lubricant supply state monitoring sensor and device
  • Lubricant supply state monitoring sensor and device
  • Lubricant supply state monitoring sensor and device

Examples

Experimental program
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Effect test

Embodiment Construction

[0097] figure 1 It is a cross-sectional view showing the configuration of a lubricant supply state monitoring sensor according to an embodiment of the present invention.

[0098] The lubricant supply state monitoring sensor 1 has the following configuration. A connecting pipe 3 is connected to a joint portion 2b of a T-shaped pipe joint 2 connected to a lubricant supply pipe that supplies an oily or fatty lubricant, such as grease, to a lubricated place such as a bearing of a rotating machine. A socket 5 into which a plug 4 is inserted is connected to the opposite side of the socket 3 . Further, the plate-shaped detection member 6 having the piezoelectric element 8 is inserted into the T-shaped pipe joint 2 through the opening provided in the plug 4 . Moreover, the plug 4 and the socket 5 are screwed together, and the connections between the connecting pipe 3 and the socket 5 and the joint part 2b are also screwed together.

[0099] The main pipe portion 2a of the T-shaped ...

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Abstract

An inexpensive lubricant feed state monitoring sensor and a lubricant feed state monitoring device capable of surely monitoring the feed state of lubricant fed to lubricating points such as bearings of a rotary machine at positions near the lubricating points, wherein the sensor monitoring the lubricant feed state is installed directly on a device requiring the supply of lubricant or in a lubricant feed pipe to detect the supply of lubricant. The sensor comprises a detection member disposed so that one end thereof is fixed and the other end is positioned in the flow of lubricant. The detection member further comprises a piezoelectric element or a strain gauge for converting strain produced by the flow of lubricant being supplied to electric signals.

Description

technical field [0001] The present invention relates to a sensor and a device for monitoring the supply state of lubricant to a lubricating place such as a bearing of a rotary machine. Background technique [0002] Many rotating machines are used in production facilities installed in factories and the like. Also, automatic centralized lubrication devices for supplying lubricant such as grease to bearings and the like of rotating machines at regular intervals are also widely used. One of the main causes of equipment abnormalities in rotating machinery is poor lubrication. It is therefore important to monitor whether the lubricant is properly supplied on each piece of equipment. [0003] As a method of monitoring the lubricant supply state of the automatic centralized lubrication device, the following method is known: using the operation of the distribution valve at a certain time interval to calculate the number of operations of the distribution valve within a predetermined...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16N29/04F16N29/00G01F1/28
CPCG01F1/28F16N29/04F16N2250/38F16N2250/40F16N2260/05
Inventor 明智吉弘上见秀司
Owner JFE STEEL CORP