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Patent Searching and Data


Title:
LARGE MANIPULATOR HAVING AN ARTICULATED MAST THAT CAN BE QUICKLY FOLDED AND UNFOLDED
Document Type and Number:
WIPO Patent Application WO/2018/100074
Kind Code:
A3
Abstract:
The invention relates to a large manipulator (1), in particular a truck-mounted concrete pump, comprising a turntable (3) that can be rotated about a vertical axis by means of a rotary drive and is arranged on a chassis (2), an articulated mast (4) which comprises two or more mast segments (5a, 5b, 5c, 5d), wherein the mast segments (5a, 5b, 5c, 5d) are each pivotably movably connected via articulated joints to the respective adjacent turntable (3) or mast segment (5a, 5b, 5c, 5d) by means of a drive (6, 6a, 6b, 6c, 6d), a control device (7) for mast movement, which actuates the drives (6, 6a, 6b, 6c, 6d) in a normal operation, and a mast sensor system for detecting the position of at least one point of the articulated mast (4) or a pivoting angle (φ1, φ2, φ3, φ4) of at least one articulated joint. The problem addressed by the invention is to be able to bring the articulated mast in minimal time from the fully folded state to its desired working position. Furthermore, even in the event of a failure of the mast sensor system, it should be ensured that the displacement speed of the drives meets legal standards. To this end, the invention proposes that the control device (7) is designed to limit the speed of mast movement, in that the mast speed is limited to a maximum value as a function of the instantaneous output signals of the mast sensor system, wherein the drives (6, 6a, 6b, 6c, 6d) are manually controllable in an emergency operating mode, wherein at least one limiting means (11, 12, 13, 14) is provided, which, in the emergency operating mode, limits the displacement speed of at least one of the drives (6, 6a, 6b, 6c, 6d) to a fixedly predefined maximum value. The invention further relates to a method for controlling the movement of an articulated mast of a large manipulator.

Inventors:
HENIKL, Johannes (Steegstr. 5e, Essen, 45356, DE)
VIERKOTTEN, Reiner (Bahnhofstr. 23, Oberhausen, 46145, DE)
LEHMANN, Andreas (Sandforter Str. 4b, Moers, 47441, DE)
Application Number:
EP2017/081006
Publication Date:
July 26, 2018
Filing Date:
November 30, 2017
Export Citation:
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Assignee:
SCHWING GMBH (Heerstr. 9 - 27, Herne, 44653, DE)
International Classes:
F15B13/00; E04G21/04; F15B20/00
Foreign References:
US20080162005A12008-07-03
JP2013091933A2013-05-16
US20160076263A12016-03-17
DE102013006232A12014-10-16
Attorney, Agent or Firm:
SCHNEIDERS & BEHRENDT PARTMBB et al. (Huestr. 23, Bochum, 44787, DE)
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