Crane suitable for roadway hoisting

Abstract

The invention discloses a crane suitable for roadway hoisting. The crane comprises a getting-off part and a getting-on part, the getting-off part includes a frame, a base, a slewing bearing and the like, the getting-on part includes a duckbill-type cargo boom structure and the like, the lower part of the base is connected to the frame, the lower part is connected to a rotary table through the slewing bearing, the four corners of the base are provided with four support lugs, and the four support lugs are hinged to four landing legs. The frame is a steel structure frame, the rear part is connected with two rear wheels through an axle, and the front part is hinged to two front wheels; a tow bar is drawn out from an axle of the front wheels and is used for being connected with other vehicles,and the walking function of the crane is realized; one end of the duckbill-type cargo boom structure is hinged to the rotary table, and the other end is a free end so as to be used for lifting heavy objects, one end of a lifting cylinder is hinged to the rotary table, and the other end of the lifting cylinder is hinged to the duckbill-type cargo boom structure; and the rotary motor is installed atthe front end of the rotary table and is meshed with the slewing bearing, and lifting, jacking and turning functions of the crane can be realized. The crane solves the problem about heavy object lifting in a tunnel or a culvert.

Description

technical field [0001] The invention belongs to the field of mobile cranes, and in particular relates to a crane suitable for roadway hoisting, suitable for narrow hoisting spaces such as roadways, tunnels, and culverts, with limited extension lengths of booms, and can increase the lifting height of heavy objects. Background technique [0002] At present, the distance between the boom head (fixed pulley position) and the boom body (guide pulley position) of traditional cranes on the market is relatively close. The problem of arm collision interference limits the maximum lifting height of heavy objects. Especially when working in some roadways, tunnels or culverts with domes, due to the limitation of the space position of the dome, the boom cannot be extended too long, and when the lifting requirements of heavy objects are high and the volume is large, this kind of crane boom head The problem that the lifting height cannot be reached due to the short distance between the top...

AI Technical Summary

Problems solved by technology

[0002] At present, the distance between the boom head (fixed pulley position) and the boom body (guide pulley position) of traditional cranes on the market is relatively close. The problem of arm collision interference limits the maximum lifting height of heavy objects

Especially when working in some roadways, tunnels or culverts with domes, due to the limitation of the space position of the dome, the boom cannot be extended too long, and when the lifting requirements of heavy objects are high and the volume is large, this kind of crane boom head The problem that the lifting height cannot be reached due to the short distance between the upper part and the boom body is more prominent.

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