Mast raising structure and process for high-capacity mobile lift crane

Mast raising structure and process for high-capacity mobile lift crane

  • CN 101,293,620 A
  • Filed: 04/28/2008
  • Published: 10/29/2008
  • Est. Priority Date: 04/26/2007
  • Status: Active Grant
First Claim
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1. , a kind of method of assembling movable crane, described hoisting crane comprises:

  • when assembling, have the car body of movable ground engagement member;

    Revolving bed, described revolving bed are rotationally attached to described car body so that described revolving bed can be swung with respect to described ground engagement member;

    Be installed in the cantilever on the anterior part of described revolving bed pivotally, and the winch hoist cable extends out from described forearm;

    Mast, described mast are installed on the described revolving bed at its first end place and have and the described first end second opposed end;

    Described method comprises;

    A) described mast is connected to described revolving bed and described mast positioned so that it extends back cross described revolving bed;

    AndB) utilize the hydraulic actuating cylinder that is connected to described revolving bed equally so that described mast carries out pivotal rotation around its junction that is connected to described revolving bed, promote described second end of described mast thus.

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