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Stroke sensor testing apparatus

A travel sensor and sensor technology, applied in measuring devices, electrical devices, instruments, etc., can solve problems such as threats to coal mine underground safety, failure of electro-hydraulic control systems, etc., achieve comprehensive quality assessment, eliminate manual intervention, and improve work efficiency. Effect

Active Publication Date: 2012-06-27
BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD
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AI Technical Summary

Problems solved by technology

If the missed stroke sensor enters the use link, it may cause the entire electro-hydraulic control system to fail, thereby threatening the safety of the coal mine underground

Method used

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  • Stroke sensor testing apparatus
  • Stroke sensor testing apparatus

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Embodiment Construction

[0024] See attached figure 1 , a stroke sensor testing device, including a frame, a traveling mechanism and a detection system; the stroke sensor is a magnetic induction sensor including a sensor rod and a magnetic ring, the magnetic ring can move on the sensor rod, and the magnetic ring has an effect on different positions in the sensor rod The magnetic induction part of the magnetic induction component affects, thereby obtains the stroke position information; The frame is made of aluminum alloy, includes a bracket and a fixing device, and the fixing device is fixedly arranged on the bracket for fixing the sensor rod, preferably, a buckle lock can be set on the fixing device Tighten the sensor rod; the walking mechanism includes a stepping motor and a sliding device, the sliding device is preferably an annular structure, the magnetic ring of the stroke sensor can be fixedly installed on the inner wall of the sliding device, and the sliding device is connected with the stepping...

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Abstract

The invention relates to a stroke sensor testing apparatus comprising a rack, a running mechanism and a detection system. The stroke sensor includes a sensor rod and a magnet ring. The rack consists of a support and a fixing device; the fixing device is fixedly arranged on the support; and the sensor rod can be fixedly installed in the fixing device. The running mechanism includes a stepping motor and a sliding device; the magnet ring can be fixedly installed in the sliding device; and the sliding device that is driven by the stepping motor can make movements relatively to the fixing device. And the detection system comprises a collection circuit and a processor; the collection circuit is connected with a signal output interface of the stroke sensor and transmits a signal output by the stroke sensor to the processor.

Description

technical field [0001] The invention relates to a sensor test device, in particular to a test device for a stroke sensor in a coal mine underground hydraulic support voltage control system. Background technique [0002] At present, the electro-hydraulic control system of hydraulic supports has been popularized and applied in large quantities in coal mines. As a position detection control element, the stroke sensor is an important part of the electro-hydraulic control system of the hydraulic support. Board movement control, etc. In the existing technology, the stroke sensor is still carried out by the traditional manual inspection method, which requires manual pulling of the magnetic rings to inspect one by one, manual recording, and low inspection efficiency. At the same time, the manual inspection method can only select a few key points. It is not possible to evaluate the entire sensor circuit. What's more serious is that due to the relatively large amount of production ...

Claims

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Application Information

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IPC IPC(8): G01B7/02
Inventor 牛剑峰代刚李俊士怀龙
Owner BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD
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