Attachment for drilling and/or foundation work

Patent metadata

Field	Value
Publication number	US-10767335-B2
Application number	US-201916283079-A
Country	US
Kind code	B2
Filing date	Feb 22, 2019
Priority date	Feb 26, 2018
Publication date	Sep 8, 2020
Grant date	Sep 8, 2020

Abstract

The present invention relates to an attachment for drilling and/or foundation work, in particular a casing oscillator or casing rotator, comprising a receiving apparatus for clamping at least one pipe and a drive for generating a rotational movement of the clamped pipe, wherein the attachment comprises at least one integral control unit for an independent carrying out of control functions of the attachment.

First claim

The invention claimed is:

1. An attachment for drilling and/or foundation work, comprising a reception apparatus for clamping at least one pipe and a drive for generating a rotational movement of the clamped pipe, wherein the attachment comprises
at least one integral control unit having a control logic for an independent carrying out of at least one control function of the attachment and at least one communication interface for communication with a base machine, with the control unit invoking machine-relevant parameters of the base machine via the communication interface and/or providing machine-relevant parameters of the attachment via the communication interface,
at least one transmission and reception unit is provided to enable a wireless and/or wired communication with at least one external unit, and
at least one control function is the control of automatic movement routines for an automatic oscillating system and/or an automatic pipe drawing device.

2. An attachment in accordance with claim 1 , wherein the attachment comprises one or more sensors whose sensor data can be read by the control unit and can be evaluated and can be taken into account for the carrying out of the control functions.

3. An attachment in accordance with claim 1 , wherein control commands for controlling the attachment can be received via the communication interface and can be interpreted by the control unit to control one or more actuators of the attachment and/or to carry out control functions of the control unit.

4. An attachment in accordance with claim 1 , wherein the attachment comprises at least one display element for reproducing the machine-relevant or control-relevant data and/or data invoked via the communication interface.

5. An attachment in accordance with claim 1 , wherein an electric and/or hydraulic and/or pneumatic supply of the attachment can be provided via an interface by a base machine.

6. An attachment in accordance with claim 1 , wherein at least one control function is the provision of at least one assistance system for operation and/or putting into operation the attachment.

7. An attachment in accordance with claim 6 , wherein the control unit is configured to carry out an assisted setting of the pile inclination during which the control unit controls one or more actuators to set the desired pipe inclination while taking account of the sensor values.

8. An attachment in accordance with claim 6 , wherein the control unit is configured to carry out an automated depth measurement of the casing/of the drilling pipe as an assistance system and optionally to prepare and output a prediction with respect to the completion of the pile.

9. An attachment in accordance with claim 1 , wherein the control unit is configured to generate an automatic request to increase and/or to decrease the hydraulic power provided by a base machine in dependence on the process-dependent power requirement of the attachment and to transmit it via the communication interface.

10. An attachment in accordance with claim 1 , wherein the control unit comprises or is connectable to at least one memory to carry out a continuous data recording during the work operation of the attachment.

11. An attachment in accordance with claim 1 , wherein the communication interface is a CAN bus.

12. An attachment in accordance with claim 1 , wherein the wireless and/or wired communication with the at least one external unit takes place via a cellular radio network.

13. An attachment in accordance with claim 1 , wherein the machine-relevant and/or control-relevant parameters of the attachment are able to be transmitted to an external server via the transmission unit.

14. A system comprising a base machine, including
an excavating assembly for excavating a borehole, and
at least one attachment installed at the base machine independently from the excavating assembly and for introduction of a casing into a around simultaneously with excavating, wherein
the attachment comprises at least one integral control unit having a control logic for an independent carrying out at least one control function of the attachment,
the excavating assembly comprises a grab for excavating the borehole, and
the attachment is configured to rotate or oscillate the casing clamped thereto to introduce the casing into the ground by rotational movements synchronously to the excavation.

Assignees

• Liebherr Werk Nenzing

Inventors

• Mendler Maximillan
• Wedl Sebastian
• Schwarzhans Andreas
• Englstler Armin
• Schneider Bernhard
• Griesemer Tobias

Classifications

• E21B3/025

  with a to-and-fro rotation of the tool · CPC title

• E21B7/02

  Drilling rigs characterised by means for land transport {with their own drive}, e.g. skid mounting or wheel mounting · CPC title

• E02D13/04 Primary

  Guide devices; Guide frames {(as parts of the driver scaffold E02D7/16)} · CPC title

• E21B44/00

  Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions · CPC title

• E21B7/20

  Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes · CPC title