Tire cranes ( RTGs ) defines

Commonly known as RTG crane tires , chassis refers to the use of walking tire rotation crane boom .
Tire cranes ( RTGs ) Overview
Tire Scissor lift crane is to increase the tire is mounted on a special chassis and axle on the composition of a fully slewing crane , the upper structure and the same crawler crane , the installation in order to ensure the stability of the body , the crane with four retractable legs . On flat ground may or may not be small outrigger from the weight lifting and hanging objects at low speed . It consists on the train and get off two parts. On the train as part of the lifting operation , with the boom , lifting mechanism , luffing mechanism , balance weight and turntable , etc. ; alight and walk part of the support . Alighting connection between the use slewing . Crane is generally required down legs , increasing the bearing surface , and the body leveling , to ensure the stability of the crane .
Tire cranes ( RTGs ) boom
Boom structure in the form lattice boom and telescopic arm two kinds . The former wire rope pulley luffing , or take a long folding arm length , the length of the larger ; latter multi-section telescopic boom box-shaped cross-section , and a luffing telescopic hydraulic cylinders . Driving conditions due to small size, the need to adapt to rapid transfer of the site . Working body can be mechanical , hydraulic and electric . Hand pallet jacks compact structure, convenient operation, easy speed control and overload protection and other advantages. Typically used for handling heavy tires hanging and installation operations, from the weight of small, may play outrigger operation , even with load walk. Has good mobility , transfers and convenient features for mobile operations , widely used. The basic technical parameters : Starting weight , lifting height , amplitude , load torque and machine weight . Tires hanging from the weight of the rated strength by the boom and the whole stability limit , with the magnitude of change , in order to prevent overloading must be equipped with torque limiter. Since traveling faster truck cranes , transfer and flexible , chassis and parts supply more convenient , etc., particularly telescopic boom truck cranes, has developed rapidly. RTG is to improve mobility and cross-country towards further development directions . Multilateral shaped cross-section telescopic boom , box-shaped radiant chassis , movable counterweight hanging tire and other new emerging .