Hunan Sany Intelligent Control Equipment Co., Ltd.

Sany Automobile Manufacture Co., Ltd.

Huimin Liu

Xin Zhang

Munan Liu

A counterweight loading and unloading device and a movable crane have a freestanding pallet () with two ends whose upper end faces are used for holding a counterweight (). The two ends of the freestanding pallet () are both equipped with a cavity, and at least one telescopic oil cylinder (, and) is provided in the cavity. A fixed end of the telescopic oil cylinder is fixed with the freestanding pallet (), and a telescopic end of the telescopic oil cylinder is coupled with a pallet lifting mechanism for lifting the freestanding pallet. The device is not limited by a planar space of a vehicle frame and a turntable height of the movable crane. An integral dimension of the movable crane is not increased, thus preventing integral dimension of the movable crane from exceeding a road traveling standard. The structure of the device is more compact, and the telescopic oil cylinder plays a role of the counterweight, thus enabling stress of the turntable to be more reasonable.

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Hunan, China

Huimin Liu