Bridge girder launching gantry crane is composed of two left and right box beams, and the two beams penetrate the fuselage and protrude forward and rearward. There are folding posts at each end consisting of two legs. There are two brakes across the two box beams that can travel longitudinally along the boom. The hanging beam trolley is placed on the brake car and can travel along the brakes. The beam piece (or the whole beam) to be framed can be directly sent to the rear arm of the bridge machine by the railway flatbed truck. After lifting with the hanging beam trolley, the vehicle is moved forward by the brake, then the crane beam is moved horizontally, and then the beam is placed. Bit.
Bridge girder launching gantry crane is mainly composed of bridge frame, cart running mechanism, trolley, and electrical equipment. According to the frequency of use, it is divided into three working levels: A5, A6 and A7. The action of the hook bridge crane is all completed in the driver.