The invention relates to a special negative-pressure grab bucket. The special negative-pressure grab bucket comprises a bucket body, two folding compression devices, protective covers, bucket teeth and two adsorption devices. Each folding compression device comprises a folding plate, a fixing block, a driven connecting rod, a driving connecting rod, an internal threaded column, a spherical hinge, a hydraulic cylinder and a support, wherein the folding plate and the inner wall of the bucket body are connected through a hinge; the fixing block and the folding block are connected through screws; the other end of the driven connecting rod and the driving connecting rod are connected through a pin shaft; the fixed end of the spherical hinge and a piston rod on the hydraulic cylinder are connected through threads; the bottom end of the hydraulic cylinder is fixedly mounted on the support. The protective covers are located on the outer sides of the folding compression devices and welded to the outer walls of the bucket body. A row of the bucket teeth are evenly welded to the front end of the bucket body. The two adsorption devices are mounted on the bucket body. The special negative-pressure grab bucket solves the problem that one-time grabbing amount is small due to a limited internal space of an existing bucket device and has the advantages that the compression performance is good, the one-time grabbing amount is large, and the working efficiency is high.
Special negative-pressure grab bucket
2015-10-07
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |