Automatic short-circuit disconnection circuit, adapter plate and electro-hydraulic controller

Abstract

The invention discloses an automatic short-circuit disconnection circuit, an adapter plate and an electro-hydraulic controller. The automatic short-circuit disconnection circuit comprises a short-circuit detecting circuit, a comparison circuit and a power turn-off circuit, wherein the input end of the short-circuit detecting circuit is connected with a circuit to be detected, and the short-circuit detecting circuit is used for detecting working parameters of the circuit to be detected; the input end of the comparison circuit is connected with the output end of the short-circuit detecting circuit, and the comparison circuit is used for comparing the working parameters with internal reference values; and the input end of the power turn-off circuit is connected with the output end of the comparison circuit while the output end of the power turn-off circuit is connected with the circuit to be detected, and the power turn-off circuit is used for determining whether the circuit to be detected is turned off or not according to a comparing result output from the comparison circuit. Therefore, the automatic short-circuit disconnection circuit provided by the invention can be used for rapidly disconnecting the part with a fault of the circuit, and the other part of the circuit still can work. In this way, the short circuit of any one bay electric cable cannot influence the normal work of other circuits.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a short-circuit automatic disconnection circuit, an adapter plate and an electro-hydraulic controller. Background technique [0002] As the development direction of support control technology, support electro-hydraulic control technology has been promoted nationwide. Through the introduction of electric control system, the automation degree of fully mechanized mining equipment can be improved, the labor intensity of workers can be reduced, and the coal output efficiency can be improved. [0003] At present, DBT, Marco, Tiefenbach, Tiandi Marco and other domestic and foreign bracket electronic control system suppliers are widely used and reliable in quality. [0004] However, during the coal mining process, the cables of the electro-hydraulic control system are prone to short circuit caused by the movement of the support, resulting in a black screen of the control system and m...

AI Technical Summary

Problems solved by technology

[0004] However, during the coal mining process, the cables of the electro-hydraulic control system are prone to short circuit caused by the movement of the support, resulting in a black screen of the control system and making it difficult to troubleshoot

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