According to the configuration of outriggers, gantry cranes are divided into three types: single outrigger, double outrigger and high and low outrigger. The gantry crane with single leg is called semi gantry crane, and its crane traveling mechanism on the side without leg runs along the special crane track or special viaduct track laid in workshops, warehouses and so on. Cranes with high and low outriggers are specially designed to meet the requirements of terrain. When the leg pressure of the outriggers on both sides of the gantry crane is very different, and different layers of running trolleys are required, the scheme of high and low outriggers can also be adopted.

According to the nature of outriggers, gantry cranes are divided into two types: space rigid outriggers and plane flexible outriggers. The intermediate rigid outrigger has good spatial rigidity, which can not only bear the horizontal load in the outrigger plane (transverse horizontal load of the crane), but also bear the horizontal load in the gantry plane (longitudinal horizontal load of the crane); The rigidity of the flexible outrigger in the plane of the gantry (perpendicular to the plane of the outrigger) is very poor, so it can only bear the horizontal load in the plane of the outrigger. Long span gantry cranes often use a rigid outrigger and a flexible outrigger to prevent rail clamping caused by temperature changes.

Gantry cranes are divided into L-shaped, C-shaped, O-shaped and U-shaped box shaped open outriggers according to the type of outriggers; Solid web closed outriggers and box closed outriggers with and without trolley access. L-shaped and C-shaped outriggers are mainly used for single main beam gantry cranes, O-shaped and U-shaped outriggers are used for double beam gantry cranes, and U-shaped outriggers are widely used in rubber tyred container gantry cranes.

The above is the outrigger structure of gantry crane updated by Shandong Hongfu Technology Co., Ltd. for you. I hope it will be helpful to you.