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Broken chain monitor device and method for coal face scraper conveyer

A technology of scraper conveyor and coal mining face, which is applied in the direction of conveyor control device, conveyor objects, transportation and packaging, etc., and can solve problems such as uneven bottom cutting, large damping, and influence on the accuracy of measurement values ​​of coal shearers , to achieve the effect of reducing maintenance intensity, prolonging service life and high accuracy

Inactive Publication Date: 2015-03-25
NINGXIA TIANDI BENNIU IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The working conditions of the telescopic tail are harsh and complex. For example, the bottom of the shearer is uneven, the damping is large, the fixed groove of the telescopic tail and the telescopic groove are stuck in the gangue and cannot be stretched, and the friction coefficient of the slideway of the telescopic tail has a large fluctuation range, etc. will affect the accuracy of the measurement
Real-time monitoring is even less feasible

Method used

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  • Broken chain monitor device and method for coal face scraper conveyer
  • Broken chain monitor device and method for coal face scraper conveyer

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Embodiment Construction

[0014] Such as figure 1 , 2 As shown, the present invention provides a kind of monitoring device of the broken chain of scraper conveyor in coal mining face, including the pressure load sensor installed on the two arc blocks of the head frame of scraper conveyor (each arc block is equipped with a sensor , a total of 2 sensors), so as to measure the pressure signal between each arc block and the bearing seat of the sprocket shaft group during the operation of the scraper conveyor. The pressure load sensor is also connected to the PLC in the monitoring box of the scraper conveyor. The PLC is also connected with the head motor and the tail motor of the scraper conveyor through a combination switch. There is also a PLC in the monitoring box, the PLC collects signals through the pressure load sensor, outputs instructions to the combination switch after calculation and processing, and the data is also connected to the man-machine interface through the MPI interface. The monitoring...

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Abstract

The invention relates to a broken chain monitor device and method for a coal face scraper conveyer. The device is characterized by comprising pressure load sensors installed on two arc blocks of a headstock of the scraper conveyer, so that pressure signals between each arc block and a bearing pedestal of a chain wheel shaft set are measured in the working process of the scraper conveyer, the pressure load sensors are connected with a PLC in a monitor case of the scraper conveyer, and the PLC is also connected with a head motor and a tail motor of the scraper conveyer through a combined switch. It is proved on trial that by adoption of the monitor method, the pressure signals between each arc block and the bearing pedestal of the chain wheel shaft set can be measured in the working process of the scraper conveyer according to the pressure load sensors installed on the two arc blocks of the headstock, so that the operating situation of a chain is monitored and controlled in real time.

Description

technical field [0001] The invention relates to a monitoring device and method for a broken chain of a scraper conveyor in a coal mining face. Background technique [0002] At present, there are two methods for monitoring the broken chain of the scraper conveyor in the coal mining face of the coal mine. One method is judged by the experience of the workers. During the operation of the scraper conveyor, the phenomenon of stacking chains and raw coal accumulation occurs. The operator judges that the chain is broken based on experience, and then shuts down for maintenance. Under normal circumstances, it is found that the chain and raw coal are piled up, the chain has been broken for a period of time, and has been dragged for a certain distance, which is poor in timeliness and increases the intensity of connection and maintenance. During the operation of the scraper conveyor, the scraper deflected, and the operator judged from experience that the pitch changes of the two chains...

Claims

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Application Information

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IPC IPC(8): B65G43/06
CPCB65G43/06
Inventor 张林王进军郭建明宋智丽王继国王金平刘建伟孔进王彩君
Owner NINGXIA TIANDI BENNIU IND GRP
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