The Boom Telescopic Principle of Truck Crane
There are several types of telescopic boom of truck crane:
1. Sequential telescopic mechanism – each arm of telescopic arm telescopes step by step in a certain order.
2. Synchronized telescopic mechanism – each arm of telescopic arm telescopes at the same relative speed.
3. Independent telescopic mechanism – the mechanism that each arm can independently telescopic.
4. Composite telescopic mechanism – When the telescopic arm exceeds three sections, the mechanism can be telescopic in either of the above two ways at the same time.