Overhead crane load sway reasons

When using material handling  sino hoist  when the crane carts, trolleys and lifting mechanism motion by the respective operating instructions are usually controlled independently; when handling the material reaches the target position, due to the carts and trolley deceleration effects load swing phenomenon appears objectionable; when the load swing, the unloading operation can not be performed.
     The above situation, only skilled operatives is possible by controlling the size of the car running to eliminate rocking. However, this requires highly skilled operatives operating skills and a high degree of concentration. Elimination of the load to adjust the load swing and microscopic target position takes a long operation time, which accounts for the handling about one third of the time required.
     In addition, the  overhead bridge crane  load quickly run will cause much of a swing. Excessive load swing on-site operations pose a threat to personal safety. Also increases the load and the load swing around the possibility of damage to the goods being. Swinging has become a crane load limit movement of materials to improve the efficiency of a major factor.
 
Crane brake inspection

     Brakes are important parts of the crane, the agencies directly affect the accuracy and reliability of the movement. Therefore, we must carefully check the hoist and luffing two institutions brake condition, observe the opening of the brake shoe friction elements and the wear of the brake pads. Band brake brake band to pay attention to check for cracks in steel backing, whether flexible transmission brake,hoist gantry crane brake frame is intact and the main spring and the auxiliary spring elastic compliance.

     Bridge crane track to determine: the dimensions of the goods to be able to pass the legs flat steel frame. Along the mast to meet stability requirements crane track direction. Note that track B and span S proportional relationship, and generally track B = (1/4-1/6) S.