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Types of safety devices for port cranes

The safety device is installed in the port crane to ensure the safe operation of the crane and avoid the occurrence of accidents. So what are the safety devices in port cranes?

Overflow valve: mainly in the hydraulic system, used to suppress the abnormal high pressure in the circuit, so as to avoid the hydraulic pump and hydraulic motor is damaged, and to prevent it in overload state.

The boom luffing safety device: when the accident occurred, hanging high pressure hose or tubing arm hydraulic cylinder in the loop burst or off when the balance valve in the hydraulic circuit play a role, from the locking cavity of a cylinder oil, the boom will not fall, so as to ensure the safety of operation.

The scalable security device: the accident occurred when the high pressure hose or tubing, hanging arm telescopic cylinder in the loop burst or off when the balance valve in the hydraulic circuit will play a role, from the locking cavity of a cylinder oil, so that the hanging will retract, so as to ensure work safety.

4. Height limiting device: to prevent the hook lifting beyond the specified height, in order to prevent danger or accident.

Leg locking device: when there is a problem, the leg can not shrink or throw out, and ensure the safety of the operation.

The weight indicator: it can accurately indicate the jib angle, and the corresponding conditions allow crane rated lifting weight.

These safety devices exist, not only constitutes an important part of the port crane, but also to better protect the safety and reliability of the lifting operation, timely protection and alert the operator when the accident occurred, to ensure the normal work of crane. But also need to remind you of Yuanwang port, in addition to the safe operation of the protective effect of relying on safety device, normative operation is also very important to your own.