Drilling unit

Patent metadata

Field	Value
Publication number	US-9428960-B2
Application number	US-201213537916-A
Country	US
Kind code	B2
Filing date	Jun 29, 2012
Priority date	Jun 30, 2011
Publication date	Aug 30, 2016
Grant date	Aug 30, 2016

Abstract

The invention relates to a drilling unit with a carrier vehicle with a hydraulic supply, a mast, a carriage which can be moved along the mast and a hydraulic cylinder for moving the carriage which comprises a cylinder housing, in which a piston with a piston rod is mounted so that it can be displaced. The piston rod is fixed to the mast and the cylinder housing to the carriage. The carriage is connected to the hydraulic supply and comprises at least one hydraulic connection. The hydraulic cylinder is connected via the hydraulic connection on the carriage to the hydraulic supply.

First claim

The invention claimed is:

1. Drilling unit comprising
a carrier vehicle with a hydraulic supply,
a mast,
a carriage being movable along the mast, and
a hydraulic cylinder for moving the carriage, the hydraulic cylinder including a cylinder housing,
in which a piston with a piston rod is mounted to the mast by a connector so that the piston is displaced, wherein the cylinder housing is fixed to the carriage so as to move with the carriage,
a first distributor is directly fixed at least to the carriage, the first distributor is connected to the hydraulic supply via at least one central supply line and a central return line,
the first distributor includes at least one hydraulic connection for the hydraulic cylinder and one further hydraulic connection for driving a drive motor on the carriage by the hydraulic supply, whereby a rigid pipeline is provided along the mast between the hydraulic connection on the carriage and the hydraulic cylinder,
a retaining element is arranged on the mast,
a second distributor is arranged on the retaining element,
the at least one central supply line and the central return line are connected to the first distributor via the second distributor,
a flexible hydraulic tubing is provided, connecting the second distributor and the first distributor for moving of one end of the flexible hydraulic tubing with the carriage along the mast, and
the hydraulic cylinder is connected via the at least one hydraulic connection for the hydraulic cylinder from the first distributor via the second distributor on the retaining element to the hydraulic supply.

2. Drilling unit according to claim 1 ,
wherein
the hydraulic cylinder is a double acting cylinder with two cylinder chambers, and
two hydraulic connections are provided on the carriage, wherein a first cylinder chamber of the hydraulic cylinder is line-connected to a first hydraulic connection and a second cylinder chamber is line-connected to a second hydraulic connection.

3. Drilling unit according to claim 1 ,
wherein
at least one hydraulic line is arranged between the at least one hydraulic connection for the hydraulic cylinder and the hydraulic cylinder, said at least one hydraulic line extending from the at least one hydraulic connection for the hydraulic cylinder upwards along the mast.

4. Drilling unit according to claim 1 ,
wherein
a fixed pipeline is provided between the at least one hydraulic connection for the hydraulic cylinder on the carriage and the hydraulic cylinder.

5. Drilling unit according to claim 1 ,
wherein
at least one central supply line is arranged between the at least one hydraulic connection for the hydraulic cylinder and the at least one hydraulic supply, said at least one central supply line is fixed to said retaining element on the mast.

6. Drilling unit according to claim 5 ,
wherein
the retaining element is arranged centrally on the mast in relation to the cylinder housing of the hydraulic cylinder.

Assignees

• Lanzl Martin
• Angermeier Manfred
• Fischer Peter
• Stetter Dieter
• Bauer Maschinen Gmbh

Inventors

• Lanzl Martin
• Angermeier Manfred
• Fischer Peter
• Stetter Dieter

Classifications

• E21B7/02 Primary

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