Boom system for a mobile crane, and mobile crane
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- LIEBHERR WERK EHINGEN
- Publication Date
- 2016-11-09
Smart Images
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Abstract
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 ...