Rotary excavating drill mast dual redundancy control device

Abstract

The invention relates to a rotary excavating drill mast dual redundancy control device. The rotary excavating drill mast dual redundancy control device is composed of a dual channel electronic control cross handle, a dual channel tilt angle sensor, a controller and a displayer, wherein two sets of potentiometers on the dual channel electronic control cross handle respectively output a group of X axis signals and a group of Y axis signals and respectively output the X axis signals and the Y axis signals to an X axis input end and a Y axis input end which are arranged on a corresponding channel on the controller, two sets of tilt angle sensing systems of the dual channel tilt angle sensor respectively send mast angle value signals to the controller according to different CAN-ID, two paths of output control ends of the controller are respectively connected onto input control ends of a left mast oil cylinder electromagnetic valve and a right mast oil cylinder electromagnetic valve of a rotary excavating drill, and the displayer and the controller are connected together through a CAN bus. By adopting output of dual redundancy channels of the rotary excavating drill mast dual redundancy control device, when one output channel breaks down, the rotary excavating drill mast dual redundancy control device can be automatically or manually switched from the output channel to the other output channel through process control, and therefore safety of an elevating mast is guaranteed.

Description

Background technique [0001] The invention belongs to the technical field of safety control of engineering machinery, and relates to a dual redundant control device for a rotary drilling mast used for safety control of a rotary drilling mast lifting and falling. Background technique [0002] The current rotary drilling mast generally uses an electronically controlled cross handle to output the mast movement control signal, and the dual-axis inclination sensor feeds back the angle signals of the X-axis (left-right direction of the mast) and Y-axis (front-rear direction of the mast). , to realize the automatic control of the mast movement. The existing electronically controlled cross handle and inclination sensor both use single-channel output. Once any of the two outputs fails during the lifting and landing process, since the mast is in the lifting state, the center of gravity of the rotary drilling rig rises, and the mast For reasons such as quality and moment arm, if the ma...

AI Technical Summary

Problems solved by technology

The existing electronically controlled cross handle and inclination sensor both use single-channel output. Once any of the two outputs fails during the mast lifting process, since the mast is in the lifting state, the center of gravity of the rotary drilling rig rises, and the mast Due to the quality and moment arm, if the mast is excessively tilted, it may cause the drilling rig mast oil cylinder to break or the mast to break or even cause accidents such as drilling rig tipping over, which seriously threatens the life safety of the driver and surrounding workers.

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