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通过运动学原理分析了一种空气套管钻机变幅机构的运动对钻机姿态的影响,并在运动学模型基础上分析了钻杆的振动对变幅机构的影响。对变幅机构进行了等效变形,建立了变幅机构的运动学模型,运用运动旋量原理得出运动学模型的正解和逆解。描述了调角油缸的运动与钻机姿态的相互关系,为设计钻机工作空间参数提供了理论支持。利用逆解分析了调角油缸的振动随钻杆振动的变化情况,分析表明变幅机构对钻杆振动起到了分散振动能量的作用。
The kinematics principle is used to analyze the influence of the luffing mechanism of an air casing drilling rig on the rig attitude. Based on the kinematic model, the influence of the vibration of the drill pipe on the luffing mechanism is analyzed. Equivalent deformation of the luffing mechanism was carried out, the kinematics model of the luffing mechanism was established, and the positive solution and the inverse solution of the kinematics model were obtained by using the principle of motion spin. Describes the interrelationship between the movement of the adjusting cylinder and the rig attitude, and provides theoretical support for the design of the parameters of the working space of the drilling rig. The inverse vibration analysis was used to analyze the vibration of the adjustable cylinder with the vibration of the drill pipe. The analysis shows that the luffing mechanism has the function of dispersing the vibration energy of the drill pipe vibration.