# US 2017/0284162 A1 · Machine and method for earth-working > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0284162 A1 - Document ID: US20170284162A1 - Status: Published application - Kind: A1 - Application number: 15/462,092 - Filed: 2017-03-17 - Published: 2017-10-05 - Earliest claimed: 2016-04-04 - Assignees: BAUER Maschinen GmbH - Applicants: BAUER Maschinen GmbH - Inventors: Andreas SCHOBER; Christian FISCHER - Web page: https://patentgrep.com/patent/US20170284162A1 ## CPC - E21B 19/008: {Winding units, specially adapted for drilling operations} - E02D 5/34: Concrete or concrete-like piles cast in position {; Apparatus for making same (E02D5/50 takes precedence; moulds E02D5/665; placing, removing moulds E02D7/00 - E02D11/00; placing the concrete E02D15/04)} - E02D 5/38: making by use of mould-pipes or other moulds - E02D 7/22: Placing by screwing down {(screw piles per se E02D5/56)} - E02D 11/00: Methods or apparatus {specially adapted} for both placing and removing sheet pile bulkheads, piles, or mould-pipes (features relating to placing only E02D7/00, to removing only E02D9/00 {; placing apparatus which without special provisions, can be operated to remove, e.g. vibrating drivers E02D7/00}) - E21B 7/02: Drilling rigs characterised by means for land transport {with their own drive}, e.g. skid mounting or wheel mounting - E21B 15/00: Supports for the drilling machine, e.g. derricks or masts - E21B 17/07: Telescoping joints for varying drill string lengths; Shock absorbers - E21B 27/00: Containers for collecting or depositing substances in boreholes or wells, e.g. bailers, {baskets or buckets} for collecting mud or sand; Drill bits with means for collecting substances, e.g. valve drill bits - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS - E02D: FOUNDATIONS; EXCAVATIONS; EMBANKMENTS (specially adapted for hydraulic engineering E02B); UNDERGROUND OR UNDERWATER STRUCTURES {(tunnels, tunnelling, mining E21)} ## 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. ## Claims ### Claim 1 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. ### Claim 2 (depends on 1) Machine according to claim 1, wherein the kelly bar has one or more intermediate kelly bar elements, which are arranged between the outer kelly bar and the inner kelly bar. ### Claim 3 (depends on 1) Machine according to claim 1, wherein an earth-working tool, in particular a drilling bucket or an auger, is detachably attached to the lower end of the inner kelly bar. ### Claim 4 (depends on 1) Machine according to claim 1, wherein at least one input device is provided, with which a type and/or size of the kelly bar, a position of the adjusting device for the top drive, a position of the rope and/or a type and/or size of the top drive can be input. ### Claim 5 (depends on 4) Machine according to claim 4, wherein the input device has at least one sensor for automatic input. ### Claim 6 (depends on 1) Machine according to claim 1, wherein depending on the input via the input device, the areas in which a movement is provided according to the rapid travel mode or the conservative travel mode are fixed by the control device upon movement of the kelly bar. ### Claim 7 (depends on 1) Machine according to claim 1, wherein to reduce the speed in the conservative travel mode, the rope can be moved via the main rope winch and the top drive via the adjusting device at the same time in the same direction. ### Claim 8 (depends on 1) Method for earth-working with a machine, in particular according to claim 1, 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 is moved vertically by means of a main rope winch, wherein the earth is worked with an earth-working tool, which is attached to a lower end of the inner kelly bar, wherein the adjusting device for the top drive and/or the main rope winch for the kelly bar is/are automatically controlled by means of a control device, 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 of the rapid travel mode. ### Claim 9 (depends on 8) Method according to claim 8, wherein the inner kelly bar is moved alone or together with other bar elements of the kelly bar. ### Claim 10 (depends on 8) Method according to claim 8, wherein a movement in the conservative travel mode is realised directly before the kelly bar comes to lie on the top drive, the earth-working tool comes into contact with the ground, and/or at a transition, at which two bar elements of the kelly bar are moved inside each other or moved out of each other. ### Claim 11 (depends on 8) Method according to claim 8, wherein the control device determines, using input values, when a movement in the rapid travel mode or a movement in the conservative travel mode is realised. ### Claim 12 (depends on 11) Method according to claim 11, wherein the input values are automatically detected at least in part by the control device by means of an input device.