Hydraulic Jacking up Frame of Hydraulic Tower Crane

Hydraulic jacking up frame of hydraulic tower crane:The jack-up set frame consists of set frame, working platform, guidance roller, climbing pedal, introducing platform of tower body standard joint, etc. Jack-up beams of hydraulic jack-up device is hung on the beam at the back of set frame, and the pumping station lies on the working platform. All these make up hydraulic jack-up mechanism.Jack-up frame set lies outside tower body and is connected with four flanges of lower turn-table by high-strength bolts via four flanges on the top. Jack-up set frame is square section space truss welded by angle iron so as to facilitate transportation. With the function of jack-up cylinder, jack-up set frame makes vertical motion dependent on eight guide rollers. The hinge support on the beam in the middle of set frame is connected with cylinder by single-ear hinge so as to bear the jack-up load of cylinder. In the middle of set frame there are two climbing pedals. When the cylinder takes back piston rod, the climbing pedals bear the whole load on the top of tower crane.Introducing platform is installed at the front of middle and upper part of jack-up frame. Steel plate web is welded on the introducing platform so that introducing rollers can be inserted into standard joint connection sleeve. When the standard joints are elevated to the height of introducing platform, put the standard on the introducing platform so as to pull in standard joints. There are two layers of removable working platform in the middle of set frame surrounded by guardrails so as to ensure the safety of operation personnel.