DE82126C - - Google Patents
Info
- Publication number
- DE82126C DE82126C DENDAT82126D DE82126DC DE82126C DE 82126 C DE82126 C DE 82126C DE NDAT82126 D DENDAT82126 D DE NDAT82126D DE 82126D C DE82126D C DE 82126DC DE 82126 C DE82126 C DE 82126C
- Authority
- DE
- Germany
- Prior art keywords
- arms
- mandrel
- cutting rollers
- cutting
- nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002184 metal Substances 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
- E21B29/002—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe
- E21B29/005—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe with a radially-expansible cutter rotating inside the pipe, e.g. for cutting an annular window
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Gegenstand der vorliegenden Erfindung bildet eine Vorrichtung zum Abschneiden von Metallrohren unter der Erde, wie dies beim Bohren von Tiefbrunnen erforderlich wird. Diese Vorrichtung ist auf beiliegender Zeichnung dargestellt, und zwar in den Fig. 1 und 2 in Längsschnitten, welche die beweglichen Theile in verschiedenen Stellungen zeigen. Die Fig. 3, 4 und 5 sind Schnitte nach den Linien x-x bezw. y-y bezw. τ^-\ (Fig. 1).The present invention provides a device for cutting metal pipes underground, as is required when drilling deep wells. This device is shown in the accompanying drawing, in FIGS. 1 and 2 in longitudinal sections, which show the movable parts in various positions. 3, 4 and 5 are sections along the lines xx respectively. yy or τ ^ - \ (Fig. 1).
Der äufsere Gestängetheil, ein Rohr α, ist an seinem unteren Ende mit einer Mutter b fest verbunden. Die letztere wiederum ist beispielsweise mit zwei nach unten zeigenden .Armen c ausgerüstet. Diese Arme c sind aus einem federnden Material hergestellt und mit Ohren d ausgestattet, welche die Befestigung von nach aufsen gekehrten Schneidrollen e an denselben ermöglichen. Aufserdem weisen diese Arme c nach innen zugekehrte Ansätze f auf, in deren Rundungen der Dorn g am unteren Ende des inneren Gestängetheiles, der Stange h, eintritt. Die letztere wird durch den Eingriff ihres Aufsengewindes mit dem Innengewinde der Mutter b in den Stand gesetzt, in axialer Richtung verstellt zu werden und die Schneidrollen e mehr oder weniger nach aufsen zu verstellen.The outer rod part, a tube α, is firmly connected at its lower end to a nut b. The latter in turn is equipped, for example, with two arms c pointing downwards. These arms c are made of a resilient material and equipped with ears d , which enable the attachment of outwardly facing cutting rollers e to the same. In addition, these arms c have inwardly facing lugs f , in the curves of which the mandrel g at the lower end of the inner rod part, the rod h, enters. The latter is enabled by the engagement of its external thread with the internal thread of the nut b to be adjusted in the axial direction and to adjust the cutting rollers e more or less outwards.
Weil es nun bei dem seiner Länge wegen aus mehreren Theilen zusammenzusetzenden Gestänge unmöglich ist, eine Anzeigevorrichtung über Tage anzubringen, durch welche der Durchschnitt des Rohres erkennbar gemacht wird, ist vorliegender Erfindung gemäfs die folgende Einrichtung getroffen.Because it has to be composed of several parts because of its length Linkage is impossible to attach a display device above days through which the Cross section of the pipe is made recognizable, is the present invention according to the met the following facility.
Die Arme c sind in radialer Richtung durchbohrt, um einen Bolzen i hindurchführen zu können. Der Knopf i1 und die Mutter z2 desselben gestatten, den Ausschlag der Arme c nach aufsen hin zu begrenzen. Stellt man nun diese Hubbegrenzung derart ein, dafs dieselbe in Wirkung tritt, sobald die Schneidrollen eben durch die Rohrwand nach aufsen getreten sind, so erkennt man den Eintritt dieses Zeitpunktes auch über Tage unschwer an dem dem Abwärtsdrängen der Stange h sich entgegensetzenden gröfseren Widerstand. Diese Hubbegrenzung kann selbstverständlich durch irgend eine andere ersetzt werden.The arms c are drilled through in the radial direction in order to be able to pass a bolt i through them. The button i 1 and the nut z 2 allow the same to limit the deflection of the arms c towards the outside. If one now sets this stroke limitation in such a way that it takes effect as soon as the cutting rollers have just stepped out through the pipe wall, the occurrence of this point in time can easily be recognized also during days by the greater resistance opposing the downward displacement of the rod h. This stroke limitation can of course be replaced by any other one.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE82126C true DE82126C (en) |
Family
ID=354550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DENDAT82126D Active DE82126C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE82126C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4210895A1 (en) * | 1992-04-02 | 1993-10-07 | Alba Ind & Umweltschutzservice | Cutting head for cutting pipes from inside - consists of revolving nozzle supplied with mixture of water and abrasive material and clamp to fix it to inside of pipe |
DE10238872A1 (en) * | 2002-08-24 | 2004-03-11 | Daimlerchrysler Ag | Parting tool for cutting sleeves from tubular material has the tube clamped and cut from the inside using a rotating cutting disc on a mounting with tilt and rotational adjustment |
DE10238871B3 (en) * | 2002-08-24 | 2004-03-18 | Daimlerchrysler Ag | Process for separating a bushing from a pipe clamped in a matrix comprises cutting the pipe material along a separating line using a cutting tool and separating the bushing by a brittle fracture produced on application of axial force |
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0
- DE DENDAT82126D patent/DE82126C/de active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4210895A1 (en) * | 1992-04-02 | 1993-10-07 | Alba Ind & Umweltschutzservice | Cutting head for cutting pipes from inside - consists of revolving nozzle supplied with mixture of water and abrasive material and clamp to fix it to inside of pipe |
DE10238872A1 (en) * | 2002-08-24 | 2004-03-11 | Daimlerchrysler Ag | Parting tool for cutting sleeves from tubular material has the tube clamped and cut from the inside using a rotating cutting disc on a mounting with tilt and rotational adjustment |
DE10238871B3 (en) * | 2002-08-24 | 2004-03-18 | Daimlerchrysler Ag | Process for separating a bushing from a pipe clamped in a matrix comprises cutting the pipe material along a separating line using a cutting tool and separating the bushing by a brittle fracture produced on application of axial force |
DE10238872B4 (en) * | 2002-08-24 | 2004-07-15 | Daimlerchrysler Ag | Device and method for separating a bush, in particular a cylinder liner, from a pipe |
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