A monitoring method for preventing a top drive hanging ring from inclining forwards to collide with a monkey board or inclining backwards to collide with a top drive guide rail comprises the steps that firstly, an early warning interval and a dangerous interval of the top drive hanging ring which inclines forwards to collide with the monkey board or inclines backwards to collide with the top drive guide rail are determined; setting a critical degree angle of the top drive lifting ring which may collide with the monkey stand or the top drive guide rail from the initial angle to the forward or backward inclination; calculating the interval position and displacement speed of the top drive hanging ring relative to the derrick monkey stand according to the collected hook position signal; according to the collected top drive hanging ring suspension signal and the collected top drive hanging ring forward inclination or backward inclination signal frequency and the signal duration time, the forward inclination or backward inclination time of the top drive hanging ring is calculated; the obtained forward or backward inclination time of the top drive lifting ring is compared with the set anti-collision time, so that whether the forward or backward inclination angle of the top drive lifting ring is within a safe and controllable range or not is judged, and if the forward or backward inclination time of the top drive lifting ring exceeds the set anti-collision time, the anti-collision time of the top drive lifting ring is not within the safe and controllable range. And the traveling block is locked through the executing mechanism or a forcing signal is sent out to force the hanging ring to suspend and return.
一种防止顶驱吊环前倾碰撞猴台或后倾碰撞顶驱导轨的监控方法,首先确定顶驱吊环前倾可能碰撞猴台或后倾可能碰撞顶驱导轨的预警区间与危险区间,设定顶驱吊环从初始角度至前倾或后倾一次可能碰撞猴台或的顶驱导轨临界度角;根据采集的大钩位置信号,计算顶驱吊环相对于井架猴台所处的区间位置与位移速度;根据采集的顶驱吊环悬浮信号和采集的顶驱吊环前倾或后倾信号频次以及信号持续时间,计算顶驱吊环的前倾或后倾时间;将获得的顶驱吊环的前倾或后倾时间与设定的防碰时间相比较,以此判断顶驱吊环的前倾或后倾角度是否在安全可控范围内,如果顶驱吊环的前倾或后倾时间超出了设定的防碰时间,则发出报警并通过执行机构锁定游车或发出强制信号迫使吊环悬浮回归。
Monitoring method for preventing top drive hanging ring from inclining forwards to collide with monkey platform or inclining backwards to collide with top drive guide rail
一种防止顶驱吊环前倾碰撞猴台或后倾碰撞顶驱导轨的监控方法
2022-05-13
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
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