关键词: 大型旋挖钻机, 稳定性, 静态稳定角, 动态稳定角, 回转

Abstract:

The mathematic models of total center of gravity and the attachments of a rotary drilling rig moved were established under the different working conditions herein, which made the angle β as a generalized variable, and the angle β was the angle between the vertical plane and hydro-cylinder of boom. The mathematical models of the static stability angle and the dynamic stability angle were made by utilizing the formula of total center of gravity moving. The variation trend of the stability of the rotary drilling rig could be distinguished accurately in the corresponding working conditions with these models. And some effective guides are attained for the earlier stage design of rotary drilling rig.

Key words: large rotary drilling rig, stability, static stability angle, dynamic stability angle, rotation