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针对目前旋挖钻机尚未实现对主卷扬下放时钻杆重力势能回收的现状,设计了一种采用液压马达的势能回收系统.本系统以某型号旋挖钻机为研究对象,在AMESim环境中建立能量回收仿真模型,并提出了一种调节主卷扬马达排量、发电机控制扭矩以及节流阀开口度的三变量联合控制策略.试验和仿真结果表明,该势能回收系统能够有效回收卷扬下放时钻杆的重力势能,并且三变量联合控制策略能够很好地控制卷扬的下放速度,不仅保证工作的平稳性,减少发动机输出,而且还回收了大量的重力势能.
In view of the current situation that the rotary drilling rig has not realized the recovery of the gravity potential of the drill pipe when the main winch is lowered, a potential energy recovery system using a hydraulic motor is designed.This system takes a rotary drilling rig as a research object and establishes in an AMESim environment Energy recovery simulation model and proposes a three-variable joint control strategy that adjusts the displacement of the main hoisting motor, the generator control torque and the throttle opening.Experimental and simulation results show that the potential energy recovery system can effectively recover the winch The gravitational potential of the drill pipe when it is released, and the three-variable joint control strategy can control the hoisting speed decently, not only ensuring the stability of the work, reducing the engine output, but also recovering a large amount of gravitational potential energy.