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Construction Of Truck Crane
- Aug 31, 2017 -

The crane mainly consists of hoisting, luffing, slewing, lifting arm and automobile chassis. Because of the development of hydraulic technology, electronic industry, high strength steel and automobile industry, the development of automobile crane has been promoted. Since the major, long working time of mechanical transmission truck crane has been replaced by hydraulic truck cranes. Hydraulic truck crane hydraulic system using hydraulic pump, quantitative or variable motor to achieve lifting slewing crane, luffing, lifting arm telescopic and outrigger telescopic and can be alone or combined action.

The motor uses overheating protection and has a safety device to prevent faulty operation. Large-Tonnage hydraulic truck crane selection of multiple-joint gear pump, confluence can also achieve the acceleration of the above actions. In the hydraulic system with automatic overload relief valve, buffer valve and hydraulic lock, so as to prevent the crane operation overload or stall and the sudden rupture of tubing caused by the accident occurred. The vehicle crane is equipped with a amplitude indicator and a height limiter to prevent overloading or exceeding the distance, and the reel and pulley are equipped with wire rope.

For the crane under 16T, the crane display, 16t and 16t above the cranes set torque limiter, and alarm device. The lifting arm of the hydraulic truck crane is composed of a multi section arm section, which can be designed according to the different requirements of the lifting height. The telescopic way of the boom is the sequential scaling and the other is the synchronous scaling. Large tonnage cranes use synchronous scaling in order to improve lifting capacity. The expansion of each arm section is controlled by oil pressure and is flexible. A crane with a pair arm is generally positioned on the side or underside of the main arm in the running state.