Super-starting balance weight stepless luffing mechanism of crawler crane and operating method thereof

Abstract

The invention discloses a super-starting balance weight stepless luffing mechanism of a crawler crane, which comprises a main luffing mast, a lifting oil cylinder, a super-starting balance weight luffing structure, a super-starting balance weight pull plate and a super-starting mast. The lower end of the lifting oil cylinder is connected with a super-starting balance weight, while the upper end is connected with the lower end of the front part of the super-starting balance weight luffing structure; the upper end of the front part of the super-starting balance weight luffing structure is connected with the lower end of the super-starting balance weight pull plate; the upper end of the super-starting balance weight pull plate is connected with the super-starting mast through a lifting rope; and the other end of the super-starting mast is connected to one end of a platform. The super-starting mast is provided with a mast angle sensor. The back lower end of the super-starting balance weight luffing structure is connected with a pin shaft of the platform. The super-starting balance weight stepless luffing mechanism of the crawler crane can realize the stepless luffing of the super-starting balance weight semi-diameter, and the luffing has a larger range and is more convenient and faster, so the aims that the lifting working range of the complete machine is larger, and the stability of the complete machine is better and the safety and the reliability of the complete machine is higher in the lifting process are achieved.

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...

AI Technical Summary

Problems solved by technology

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 counterweight, this method cannot be operated during the operation, not only the operation is cumbersome, time-consuming, laborious, low work efficiency, but also requires a large work space

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