Position detecting device

Abstract

The invention provides a position detecting device. The position detecting device is used for detecting the position of mobile equipment and comprises an approach switch, an approach body and an auxiliary mechanism, wherein the auxiliary mechanism is used for installing the approach switch and the approach body; the auxiliary mechanism comprises a support, a limiting sliding groove and a connecting component, wherein the limiting sliding groove is arranged on the support; one or more approach switch(es) is / are arranged on the support along the length direction of the limiting sliding groove, and the distance between the limiting sliding groove and the support and the distance between the limiting sliding groove and the sensing surface of the approach switch can be adjusted; the connecting component is used for connecting the approach body onto the mobile equipment; the approach body is positioned in the limiting sliding groove and can move with the movement of the mobile equipment along the length direction of the limiting sliding groove so as to be close to or separated from the sensing surface of the approach switch. The position detecting device provided by the invention can prevent external factors from causing bad detecting signals of the approach switch or faults of the equipment, and has the advantages of stable operation, no environmental influence, low fault rate and the like.

Description

technical field [0001] The invention relates to the field of automatic detection, in particular to a detection device for detecting the position of a movable device by using a proximity switch. Background technique [0002] Proximity switches are commonly used detection components in automation systems. They are low in price, simple in application and strong in adaptability. Under the automation and continuous requirements of the metallurgical production line, it is often necessary to use proximity switches to detect the position of movable equipment, for example, to detect the opening and closing degree (or switch position) of gates or gate valves. [0003] Figure 1A It is the front view of the position detection device in the prior art. Figure 1B yes Figure 1A Left side view of the position detection device shown. [0004] In the prior art, when the proximity switch is used to detect the opening and closing degree of the gate, the installation method of the proximity ...

AI Technical Summary

Problems solved by technology

[0007] Second, the proximity switch is greatly affected by the environment. Under harsh on-site environmental conditions such as hot air stoves and flue gas stoves, high temperature, high altitude, humidity, and toxic and harmful gas areas, high temperatures are easy to burn cables, gates or pipe cooling water, rainy days, etc. Wet signal detection lines cause short circuits or ground faults, inadequate maintenance of toxic and harmful areas, etc., resulting in high failure rates of detection equipment, resulting in production accidents such as interruption of feeding or interruption of hot air

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