The crane is a kind of machine for circulating and intermittent movement. The picking device lifts the item from the picking place, then moves horizontally to the specified address to lower the item, and then performs the reverse movement to bring the picking device back to the original position for the next cycle. Cranes, according to their different structures and functions, are divided into different types, which can be divided into three categories: light and small lifting equipment, bridge type lifting equipment and boom type cranes.
With the extensive use of cranes, cranes continue to have various difficult problems in the process of equipment, and safety issues cannot be ignored. Therefore, safety equipment must be installed in the process of bridge cranes.
1. It is necessary to install a hoisting limiter for the hoisting organization. When the hook pulley is lifted to a lifting frame of 300 mm, the power of the motor can be actively blocked and the motor can be stopped. It is a safety device adopted to avoid the collision of the crane near the end of the trajectory, or the collision of two cranes on the same trajectory.
2. The active interlocking device is that there are many bare wires passing through the bridge crane. In order to avoid the electric shock of the maintenance personnel, it is required to install the active interlocking device at the door of the cab leading to the driver's car. The damper is a safety device that absorbs the energy of the crane when it collides with the object. It works after the crane's brake and the end switch fail. When the crane is connected to the track end column, ensure that the crane is parked more smoothly.
3. Brake, a device that enables the lifting equipment to stop working at any time during lifting, translation and rotation, and to keep the weight at any height. It can avoid accidents and satisfy the operation requirements. Because the effect of the brakes is very important for the crane, the episodes of many incidents are often caused by the failure of the brakes or the clapping of the hands.
