Dynamic compactor capable of realizing amplitude-variable followup of A-bracket with arm support

Abstract

The invention relates to a dynamic compactor capable of realizing the amplitude-variable followup of an A-bracket with an arm support, which is characterized in that a followup A-bracket is mounted on a dynamic compactor rotating platform, an amplitude-variable draw rod is arranged between an inner diagonal rod and an arm support, a swing arm mechanism is arranged at the lower parts of the amplitude-variable draw rod and the inner diagonal rod, the swing arm mechanism is composed of a swing arm rack and a telescopic oil cylinder, and the followup A-bracket forms linkage with the amplitude-variable draw rod by the swing arm mechanism. Wire ropes of a hoisting mechanism are connected with a dynamic compactor weight through a pulley at the top end of the followup A-bracket and a pulley at the top end of the arm support, so that the quantity of front wire ropes at the top end of the arm support is the same with that of back wire ropes at the top end of the arm support. When the amplitude-variable draw rod drives the arm support to realize an amplitude-variable process, the swing arm mechanism connected with the followup A-bracket synchronously drives the followup A-bracket to swing. The amplitude-variable followup of the followup A-bracket with the arm support is realized, so that the stress on the arm support of the dynamic compactor is more reasonable, the stress balancing of the arm support can be realized to the greatest extent, the structural stress of the arm support can be improved, the self-weight of the arm support can be reduced, and the dynamic compaction operating performance of the arm support and the complete machine can be improved.

Description

technical field [0001] The invention relates to the technical field of hoisting machinery, and is a dynamic compaction machine with a herringbone frame and a boom luffing follow-up. Background technique [0002] At present, the commonly used crawler cranes (including dynamic compactors) all have a fixed herringbone frame of a certain height and a special hoisting wire rope luffing mechanism to luff the boom. During the luffing process, the herringbone frame There is no relative movement in the luffing process. The luffing mechanism realizes the luffing of the boom by changing the length of the luffing wire rope and pulling and releasing the boom independently of each other. There is no linkage between the herringbone frame and the boom luffing. In addition, the boom head is not only affected by the direction-maintaining force of the luffing wire rope, but also by the force of the front magnification pulley block at the head of the boom end of the lifting wire rope and the li...

AI Technical Summary

Problems solved by technology

The bigger problem is that if the load needs to be released suddenly during the lifting process like a dynamic tamping machine, under the influence of the deformation and energy storage of the wire rope and the boom, it will cause the boom to tilt backward and vibrate

Images