LARGE MANIPULATOR HAVING AN ARTICULATED MAST THAT CAN BE QUICKLY FOLDED AND UNFOLDED

WIPO Patent Application WO/2018/100074

A3

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.

JPH1054404	PNEUMATICALLY OPERATING UNIT PROVIDED WITH PLURALITY OF PNEUMATIC LOADING DEVICE
WO/2001/014190	ELECTRICAL CONTACT BETWEEN ACTUATORS OR SENSORS AND THE CONTACTS OF A CIRCUIT CARRIER AND BRAKING PRESSURE REGULATOR OR ACTIVE SUSPENSION OR DAMPING SYSTEM AND HOUSING FOR SAID BRAKE PRESSURE REGULATOR OR ACTIVE SUSPENSION OR DAMPING SYSTEM
WO/2001/096971	METHOD AND APPARATUS FOR COMBINED CONDUIT/ELECTRICAL-CONDUCTOR JUNCTION INSTALLATION

HENIKL JOHANNES (DE)
VIERKOTTEN REINER (DE)
LEHMANN ANDREAS (DE)
SCHNITTKER JOSEPH

PCT/EP2017/081006

July 26, 2018

November 30, 2017

Click for automatic bibliography generation  

SCHWING GMBH F (DE)

F15B13/00; E04G21/04; F15B20/00

US20080162005A1	2008-07-03
JP2013091933A	2013-05-16
US20160076263A1	2016-03-17
DE102013006232A1	2014-10-16

SCHNEIDERS & BEHRENDT PARTMBB et al. (DE)

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