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发明公开
CN102678041A 旋挖钻机动臂限位装置、旋挖钻机及旋挖钻机保护方法 失效 - 权利终止

旋挖钻机动臂限位装置、旋挖钻机及旋挖钻机保护方法
摘要：
本发明公开了一种旋挖钻机动臂限位装置，包括接近开关、底盘、检测板、动臂及控制模块，所述动臂的一端与所述底盘铰接，所述检测板安装在所述底盘上，所述接近开关安装在所述动臂上，所述接近开关可检测到检测板信号的区域为动臂运输区，所述接近开关检测不到检测板信号的区域为动臂工作区，所述动臂工作区和所述动臂运输区的临界点为下限位，所述控制模块用于所述动臂达到下限位或者越过下限位时，控制动臂向工作区的方向运动。本发明提供的旋挖钻机限位装置，结构简单、性能可靠，用一个工作区代替一个特定位置，操作简单。本发明还公开了一种旋挖钻机及旋挖钻机的保护方法。
摘要（英）：

The invention discloses a movable arm limit device of a rotary drilling rig. The movable arm limit device comprises a proximity switch, a chassis, a detection panel, a movable arm and a control module; one end of the movable arm is hinged to the chassis; the detection panel is installed on the chassis; the proximity switch is installed on the movable arm, can detect that a signal zone of the detection plate is a movable arm transport zone and can not detect that the signal zone of the detection plate is the movable arm work zone; the critical point of the movable arm work zone and the movable arm transport zone is the lower limit position; the control module is used for controlling a movable arm to move to the movable arm work zone when the movable arm reaches or surpasses the lower limit position. The movable arm limit device of the rotary drilling rig is simple in structure, reliable in performance, and easy in operation by replacing a special position with one work zone. The invention also discloses a rotary drilling rig and a protection method of the rotary drilling rig.

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