What is the speed limit of a motor vehicle crane?
The role of the balance valve can not only lock, but also speed limit.
Due to the lifting and lifting of the crane, the boom is extended and retracted, and the stroke of the boom is long. The acceleration phenomenon caused by the action of gravity during the movement of the mechanism or load is also a more prominent problem.
In all the valve, only the manual valve in the commutation at the same time, by controlling the size of the valve opening can also limit the speed and throttling speed.
When the mechanism or load falls, the balance valve in the balance valve can balance the oil return flow of the hydraulic cylinder (hydraulic motor) with the balance of the spool, so that the hydraulic cylinder (hydraulic motor) can maintain the speed movement.
