Boom system for a mobile crane, and mobile crane

A technology for moving cranes and cranes, applied in the direction of cranes, etc., can solve the problems affecting the maximum length of the telescopic cantilever, and achieve the effect of improving the connection rigidity, reducing the load, and reducing the load
CN106103333AActive Publication Date: 2016-11-09LIEBHERR WERK EHINGEN

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
LIEBHERR WERK EHINGEN
Publication Date
2016-11-09

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Abstract

The invention relates to a boom system for a crane, in particular a mobile crane, comprising at least one telescopic main boom and at least one fly jib that can be bolted to a telescopic length of the main boom. When retracted, the telescopic length receiving the fly jib can be bolted to at least one surrounding telescopic length.
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Description

technical field

[0001] The invention relates to a jib system for cranes, in particular mobile cranes, having at least one telescopic main jib and at least one pointed jib which can be screwed to a telescopic tube eye of the main jib. Background technique

[0002] Often very high travel heights and dump heights are required which exceed the effective range of conventional telescopic cranes. Due to possible interfering edges at the location of use, the pointed jib is in this case mounted on a telescopic jib in order to be able to achieve very long lengths which can far exceed the length of the main jib. Such a pointed cantilever can consist of an oscillating tip or a fixed tip.

[0003] The maximum possible load of the cantilever system (including the pointed cantilever) is usually limited by the profile of the telescoping tube eye which accommodates the pointed cantilever. The pointed cantilever is usually mounted on the center telescopic tube eyelet. The pointed jib here ...

Claims

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