The invention discloses a combined steel wire rope guide mechanism of a rotary drilling rig. A pressurizing winch steel wire rope pulley, an auxiliary winch gooseneck boom pulley and a main winch pulley are arranged on a drilling mast; a support is fixed in the middle of the drilling mast, and a pressurizing rope guide pulley, an auxiliary winch rope guide pulley and a main winch rope guide pulley are mounted on the support; and in the cross section direction of the drilling mast, the auxiliary winch rope guide pulley is located on the outer side of the pressurizing rope guide pulley, and the main winch rope guide pulley is located on the outer side of the auxiliary winch rope guide pulley. According to the combined steel wire rope guide mechanism, the guide space of each steel wire rope is divided into three layers which are independent of one another, the structure is simplified, and space occupation is reduced; winding drums of an auxiliary winch and a pressurizing winch are short, the incident angle is small, rope guide mechanisms of the auxiliary winch and the pressurizing winch are arranged in the space of the two lower layers, and the bending moment borne by the pulleys in the working process is reduced; and the main winch is large in load and frequent in use, the incident angle of the steel wire ropes is large in change, the rope guide mechanism of the main winch is arranged on the outermost layer, and the rope guide mechanism is designed to be in a swing type so as to guarantee the stress state of the steel wire ropes and the pulleys of the guide mechanism.
本发明公布一种旋挖钻机组合式钢丝绳导向机构。钻桅上布置有加压卷扬钢丝绳滑轮、副卷扬鹅头滑轮和主卷扬滑轮;钻桅中部固定有支架,支架上安装有加压导绳滑轮、副卷导绳滑轮和主卷导绳滑轮;在钻桅横截面方向,副卷导绳滑轮位于加压导绳滑轮外侧,主卷导绳滑轮位于副卷导绳滑轮外侧。本发明将各钢丝绳的导向空间分为3个层次,相互独立,简化结构减少空间占用;副卷及加压卷扬的卷筒长度较短,入射角较小,将副卷及加压卷扬的导绳机构布置在下侧两层的空间,减小滑轮在工作过程中所受弯矩;主卷扬载荷大使用频繁,且钢丝绳入射角变动较大,将主卷扬导绳机构布置在最外层,导绳机构设计成摆动式以保证钢丝绳与导向机构滑轮的受力状态。
Combined steel wire rope guide mechanism of rotary drilling rig
旋挖钻机组合式钢丝绳导向机构
2021-06-18
Patent
Electronic Resource
Chinese
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