Crawler crane super-lifting counterweight stepless luffing mechanism and its operation method

Abstract

A superlift counterweight stepless luffing mechanism of a crawler crane comprises a main luffing mast, a lifting oil cylinder, a superlift counterweight luffing structure, a superlift counterweight pull plate and a superlift mast. The lower end of the lifting cylinder is connected to the superlift counterweight, and the upper end is connected to the lower end of the front part of the superlift counterweight luffing structure; the upper end of the front part of the superlift counterweight luffing structure is connected to the lower end of the superlift counterweight pull plate; The upper end of the board is connected with the super-lifting mast through a suspension rope, and the other end connected with the super-lifting mast is connected to one end of the platform. A mast angle sensor is arranged on the superlift mast. The rear lower end of the superlift counterweight luffing structure is connected with the pin shaft of the platform; the invention can realize the stepless amplitude variation of the superlift counterweight radius, and the range of amplitude variation is larger and more convenient, so as to reach the hoisting operation range of the whole machine It is larger and the whole machine has better stability and higher safety and reliability during the hoisting process.

Description

technical field

[0001] The invention relates to a mechanism for changing the position of the superlift counterweight of a crawler crane and an operation method thereof, in particular to an inorganic amplitude-changing structure of the superlift counterweight of a crawler crane and an operation method thereof. Background technique

[0002] At present, most crawler cranes usually change the superlift radius by changing the angle of the superlift mast, so as to change the position of the superlift counterweight and realize the adjustment of the center of gravity of the superlift counterweight, so as to ensure the overall stability of the whole machine during hoisting. stability. When changing the position of the superlift counterweight only by changing the angle of the superlift mast, it is necessary to put the superlift counterweight on the ground every time, then change the angle of the superlift mast, adjust the superlift radius and then restart Lifting the super-lifting co...

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