Sounding device of rotary drilling rig

Abstract

The invention discloses a sounding device of a rotary drilling rig, including a center plate and an photoelectric switch. The center plate is arranged on the side wall of a drum of the rotary drillingrig, the photoelectric switch is arranged on a rack of a main winch of the rotary drilling rig, and the photoelectric switch and the center plate are arranged in an alignment mode. The photoelectricswitch needs to be kept close to the center plate to reach the purpose of signal collecting. The working condition of the drilling rig is very bad, once the relative movement of the center plate and the photoelectric switch occurs, the photoelectric switch can be damaged. The photoelectric switch is arranged on the frame of the main winch, no axial relative movement between the center plate and the photoelectric switch is generated, so the failure rate of the photoelectric switch is greatly reduced, and the maintenance cost of the drilling rig is lowered. At the same time, the problem of testinaccuracy caused by pulley slipping is avoided. The electric switch cannot be collided, and the failure rate is reduced. At the same time, no problem of inaccurate sounding caused by the pulley slipping is generated. The damage problem of the photoelectric switch caused by vibration is avoided, the failure rate is reduced, and sounding accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of sounding devices, in particular to a sounding device for a rotary drilling rig. Background technique [0002] The power-off switch uses the blocking or reflection of the light beam by the object to be detected, and the circuit is turned on by the synchronous circuit to detect the presence or absence of the object. The photoelectric switch converts the input current into a light signal on the transmitter and emits it, and the receiver detects the target object according to the intensity or presence of the received light. [0003] At present, the test device of the rotary drilling rig is arranged in the form of photoelectric light on the anchor frame. This structure will cause inaccurate sounding when the pulley slips. The switch is often damaged by pulleys or worn out. To replace the proximity switch, the mast of the drilling rig needs to be leveled, which has a great impact on the construction progress. ...

AI Technical Summary

Problems solved by technology

[0003] At present, the test device of the rotary drilling rig is arranged in the form of photoelectric light on the anchor frame. This structure will cause inaccurate sounding when the pulley slips. The opening light is often damaged by the pulley or worn out. To replace the proximity switch, the mast of the drilling rig needs to be leveled, which has a great impact on the construction progress.

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