Beam lifting cranes adopt tyred line technology to finish handling all beams in the preset field, the whole crane can travel and swerve, whose lifting is driven by a hydraulic system and can realize many walk line mode, such as straight, oblique and crosswise. Its advantage is strong adaptability, high efficiency, small occupied area and no need to lay the rail. In the construction of the high-speed railway in China, this kind crane is used to lift, handle and load the beam by most preset field.
Beam lifting cranes, used to lift, handle, load beam in the preset field when the high-speed railway weight is below 1000t, It can travel along the laid rail and its running mechanism can rotate 90degree to realize straight travel and crosswise to finish handling all beams in the preset field. In the construction of the high-speed railway in China, this kind crane is used to lift, handle and load the beam by part of the preset field.
- Equipped with special spreader and mainly used to load, unload and transit large bridge beam.
- Structure model: two cranes, two trolleys, its max. lifting height is 30m.
- The concrete beam is parallel to crane rail.
- It's max. wheel load is 22t when lifting 900t beam;
- When unloaded, the crane travelling mechanism can rotate 90 degrees to realize running type change on the vertical and horizontal rail.
- Lifting mechanism adopts four-point to lift three-point balance to ensure the stress of wire rope equalizing and accurate positioning when falling beam.
- Trolley adopts hydraulic push rod device to realize the lifting of the various beam and save cost.
- The four winch can operate independently, two linkages and four linkages with the main girder, whose hardware and software can realize interlock function at the same time.