The invention discloses a stepless variable-pitch hoisting steel wire rope, and relates to the field of hoisting in the petroleum and natural gas industry, the stepless variable-pitch hoisting steel wire rope comprises an axial extension section and roundabout sections located at the two ends of the axial extension section, and the end part of the axial extension section and the roundabout sections are jointly provided with a mounting block, so that hoisting rings are formed at the two ends of the axial extension section; the axial extending section is fixed to the mounting block, the circuitous sections can move in one direction in the mounting block, the moving directions of the two circuitous sections are opposite, a telescopic rod is further hinged to the mounting block, and the output end of the telescopic rod is hinged to the circuitous sections. According to the invention, each steel wire rope can be ensured to be stressed in the hoisting operation, so that a plurality of steel wire ropes can be uniformly stressed in the hoisting process of a hoisted object, each steel wire rope is ensured to be stressed in a rated load range, and great risks caused by hoisting point design defects or structure eccentricity in the conventional hoisting process are avoided.
本发明公开了一种无级变距的起重钢丝绳,涉及石油天然气行业吊装领域,包括轴向延伸段和位于轴向延伸段两端的迂回段,且轴向延伸段的端部与迂回段共同安装有安装块,使轴向延伸段两端形成吊环;所述轴向延伸段与安装块固定,迂回段在安装块内可向一个方向运动,且两个迂回段的运动方向相反,安装块上还铰接有伸缩杆,伸缩杆输出端与迂回段铰接。本发明有助于在吊装作业中保障每一根钢丝绳均能受力,使被吊物在吊装过程中多根钢丝绳能均匀受力,从而保证每根钢丝绳在额定载荷范围内受力,避免以往吊装中由于吊点设计缺陷或者结构偏心引起的重大风险。
Stepless pitch-variable hoisting steel wire rope
一种无级变距的起重钢丝绳
2024-11-08
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |