US 2017/0284162 A1Published application

Machine and method for earth-working

AssigneeBAUER Maschinen GmbH

InventorsAndreas SCHOBER, Christian FISCHER

Life of this patent

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Abstract

A machine and a method for earth-working with a machine, having a mast, along which a top drive can be moved vertically by an adjusting device, through which top drive a telescopic kelly bar is displaceably guided, which has at least one outer kelly bar, which is designed to come to lie on the top drive, and one inner kelly bar, which comprises a rope suspension for a rope, through which the inner kelly bar is moved vertically by a rope winch. The adjusting device for the top drive and/or the main rope winch for the kelly bar is/are automatically controlled, wherein the inner kelly bar is moved relative to the top drive in some areas in a rapid travel mode at a first speed and in some areas in a conservative travel mode, in which the speed is reduced in comparison with the first speed.

Claims12

Dependent claims

Machine, in particular construction machine, having a mast, along which a top drive can be moved vertically by means of an adjusting device, through which top drive a telescopic kelly bar is displaceably guided, which has at least one outer kelly bar which is designed to come to lie on the top drive, and one inner kelly bar which comprises a rope suspension for a rope, through which the inner kelly bar can be moved vertically by means of a main rope winch,

wherein
an automatic control device is provided, which is designed to automatically control the adjusting device for the top drive and/or the main rope winch for the kelly bar in such a way that the inner kelly bar can be moved relative to the top drive in some areas in a rapid travel mode at a first speed and in some areas in a conservative travel mode, in which the speed is reduced with respect to the first speed of the rapid travel mode.

Dependencies are inferred from the claim text.

Facts

Application: 15/462,092Filed 17 Mar 2017
Priority: EP 16 163 646.94 Apr 2016
Published: 5 Oct 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

E21B 19/008
Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables: winding units,…
E02D 5/34
Piles: concrete or concrete-like piles cast in position ; Apparatus for making same
E02D 5/38
Concrete or concrete-like piles cast in position ; Apparatus for making same: making by use of mould-pipes or other moulds
E02D 7/22
Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds: placing by screwing down

Family

US 10,167,685 B2Related patent
US 2017/0284162 A1This patent

From the US filing history. Foreign family members aren’t listed.

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