The invention discloses an arm lifting device and method for a crawler crane cargo boom, the arm lifting device comprises a first amplitude variation system and a second amplitude variation system, the first amplitude variation system comprises a first winch, a first steel wire rope and a first pulling plate; the second amplitude variation system comprises a second winch, a second steel wire rope, a second pulling plate and a waist rope; the first winch drives the first steel wire rope to extend or retract, the first steel wire rope pulls the first pulling plate, and the first pulling plate pulls the cargo boom; the second winch drives the second steel wire rope to extend or shorten, the second steel wire rope pulls the second pulling plate, the second pulling plate pulls the cargo boom, the first luffing system and the second luffing system are mutually matched and synergistically act, and each luffing system can easily realize luffing of the super-long cargo boom only by needing very small luffing force.
本发明公开了一种用于履带起重机起重臂的起臂装置及起臂方法,该起臂装置包括第一变幅系统和第二变幅系统,第一变幅系统包括第一卷扬机、第一钢丝绳和第一拉板;第二变幅系统包括第二卷扬机、第二钢丝绳、第二拉板和腰绳;第一卷扬机带动第一钢丝绳伸长或缩短,第一钢丝绳拉动第一拉板,第一拉板拉动起重臂;第二卷扬机带动第二钢丝绳伸长或缩短,第二钢丝绳拉动第二拉板,第二拉板拉动起重臂,第一变幅系统和第二变幅系统相互配合,相互协同作用,每个变幅系统均只需要很小的变幅力,就能够很容易的实现对超长起重臂的变幅。
Arm lifting device and arm lifting method for crane boom of crawler crane
一种用于履带起重机起重臂的起臂装置及起臂方法
2022-11-01
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |