2013年7月19日星期五

Definition Truck Crane

Definition Truck Crane

Truck Crane is mounted on the chassis or regular car on a special  lift hoist  chassis of the vehicle and its driving cab and lifting separate control room setting.

This  Hoist equipment  has the advantage of good mobility shift rapidly. Disadvantage is that when working legs, can not load driving, do not fit in soft or muddy work on site.

Works
Inside the boom following a rotating drum, at around the  Wire rope  through the pulley on the top of the arm section, the upper boom section pulled out, and so on. Retracted, reverse recovery rope drum, boom retracted under its own weight. The rotating drum driven by hydraulic motor, so they can see the two tubing, but do not as a cylinder.
In addition there are some telescopic crane mounted inside the suit-type piston cylinder, but this application is extremely rare. Multiple levels of expensive ram cylinder, and the boom will occur under load elastically bent, the cylinder life greatly.

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