EP0356666B1 - Rammbohrgerät zum grabenlosen Verlegen von Versorgungsleitungen - Google Patents

Rammbohrgerät zum grabenlosen Verlegen von Versorgungsleitungen Download PDF

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Publication number
EP0356666B1
EP0356666B1 EP89112633A EP89112633A EP0356666B1 EP 0356666 B1 EP0356666 B1 EP 0356666B1 EP 89112633 A EP89112633 A EP 89112633A EP 89112633 A EP89112633 A EP 89112633A EP 0356666 B1 EP0356666 B1 EP 0356666B1
Authority
EP
European Patent Office
Prior art keywords
piston
housing
boring machine
ram boring
machine according
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.)
Revoked
Application number
EP89112633A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0356666A3 (de
EP0356666A2 (de
Inventor
Alfons Dipl.-Ing. Hesse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schmidt Paul Dipl-Ing
Original Assignee
Schmidt Paul Dipl-Ing
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6362029&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0356666(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Schmidt Paul Dipl-Ing filed Critical Schmidt Paul Dipl-Ing
Publication of EP0356666A2 publication Critical patent/EP0356666A2/de
Publication of EP0356666A3 publication Critical patent/EP0356666A3/de
Application granted granted Critical
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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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring
    • E21B7/30—Enlarging drilled holes, e.g. by counterboring without earth removal
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers
    • E21B4/145—Fluid operated hammers of the self propelled-type, e.g. with a reverse mode to retract the device from the hole

Definitions

  • the invention relates to a ram boring machine for trenchless laying of supply lines in the ground with an impact piston which can be moved axially in a housing and is driven by a pressure medium via a supply hose connected from the front to the device housing.
  • Such a ram boring machine is described in the older, subsequently published European patent application 0 350 806.
  • a special design is required to achieve the pressure medium supply for this ram boring machine via a compressed air hose connected to the front of the device.
  • a control valve rigidly arranged inside the housing
  • an inner and an outer housing are required.
  • the inner housing is a conventional ram boring machine, to which the outer housing is attached, so that a special construction results.
  • a device has become known from European laid-open specification 0 190 933, which has an impact piston which can be axially displaced in a housing and is operated via a supply hose by means of a pressure medium.
  • the supply hose or hoses penetrating into the head of the device housing are connected to rigid pipes inside the housing.
  • the invention has for its object to design a ram boring machine so that with a supply hose connected to the front of the device housing, the pressurization of the percussion piston can be achieved with simple means, in particular without increasing the device diameter.
  • hose connection is arranged in the housing tip and the supply hose is connected to the percussion piston via a channel penetrating the end wall of the device housing in the longitudinal direction.
  • the device can be inserted more easily into an old pipe to be replaced or an earth channel.
  • the head piece be designed as a connecting piece that extends over the supply hose and tapers in the direction of advance.
  • the one-piece i.e.
  • a conical headpiece which transitions seamlessly into a nozzle or is provided with a screwed-in nozzle also offers protection of the supply hose which is enclosed by the nozzle on a part length corresponding to the length of the nozzle.
  • a percussion piston which is preferably stepped and has a piston extension which extends in the direction of advance and has a plurality of control openings corresponding to control openings fixed to the housing
  • the forward and return flow of the percussion piston can be controlled in such a way that the piston always faces the hose connector on the device housing and / or the tip of the device hits and releases its impact energy there.
  • a transverse bore arranged in a constricted central section of the piston extension can preferably be connected to a longitudinal bore opening into a working space behind the piston.
  • the control openings can be connected to one another by appropriate design of the control edges so that after a certain backward stroke of the percussion piston, the compressed air arrives behind the percussion piston and this in the direction of advance, i.e. accelerated forward again, and vice versa.
  • the supply hose can advantageously be fastened to a head tube, which is enclosed by a piston jacket of the percussion piston provided with control openings and extends with a continuous air channel into a piston bore.
  • a percussion piston located in its front end position when feeding Air through the central channel of the head tube first moved to the right, ie against the direction of advance, until the control openings of the piston skirt are connected to the piston bore. Then compressed air can get through the piston bore and the control openings behind the percussion piston and initiate another work cycle in the direction of advance.
  • the ram boring machine 1 has a housing 2 in which a percussion piston 3 is axially displaceably mounted.
  • the percussion piston 3 is designed as a stepped piston and has a main piston 4 and a piston extension 6, which has a smaller diameter and extends in the direction of advance 5 of the ram boring machine 1. In the position shown, the percussion piston 3 is in its front end position.
  • a compressed air hose 7 connected to a pressure medium source (compressor), not shown, by means of a Hose connection 8 attached.
  • a longitudinal bore 10 penetrating the front end wall 9 directs compressed air supplied via the compressed air hose 7 to the end face of the piston extension 6; this is provided with an air grooves 11 (see FIG. 2) which has a circumferentially distributed control head 12. Due to the compressed air acting on the end face of the control head 12, the percussion piston 3 moves against the direction of advance 5, ie to the right, the air enclosed in a working space 13 behind the main piston 4 escaping to the rear via air openings 14 until control edges 15 of the air grooves 11 ( see FIG.
  • the working space 13 is bounded at the rear by a cover 21 screwed onto the rear end of the housing. As soon as a pressure exceeding the counter pressure has built up in the working space 13, the percussion piston 3 is accelerated back into its position shown, the air escaping to the rear via the air openings 22 in front of the main piston 4.
  • the front end of the ram boring machine 1 is provided with an insertion cone 23 and, in addition, a screwed socket 24 tapering in the direction of advance 5 and extending the insertion cone 23 in a funnel-like manner.
  • the nozzle 24 extends over a partial length of the compressed air hose 7 and thus represents a hose protector.
  • a pulling cable 25 inserted between the connecting piece 24 and the insertion cone 23 and screwed in before the connecting piece 24 is used serves to guide the ram boring machine 1 which moves through an old pipe (not shown) or an earth channel (not shown); the pull cable 25 can be pulled in a target pit, for example by a winch, so that the feed of the ram boring machine 1 can also be increased.
  • a widening socket 26 which tapers conically in the direction of advance 5, is pushed onto the housing 2 and extends with a jacket 27 to the rear beyond the rear end of the ram boring machine 1.
  • a tube can be pushed between the jacket 27 and the device housing 2 and pulled into the ground with the advance of the ram boring machine 1.
  • a pressure medium hose 107 with a hose connection 108 is attached to a control tube 28 fixed in the housing 102 at the front end of the housing 102.
  • the end of the control tube 29 facing away from the hose connection 108 is designed as a head piece 29 which engages flush in a piston bore 30 of a percussion piston 103.
  • the compressed air hose 107 is connected to the piston bore 30 via an air duct 31 which penetrates the control tube 28 centrally.
  • the piston jacket 32 sliding over or on the head tube 29 has radial control openings 33 which merge into axial air channels 34; the channels 34 lead to air grooves 111, shown in broken lines, of the percussion piston 103.
  • the piston bore 30 builds up Due to the air supplied via the compressed air hose 107 and the air channel 31, the percussion piston 103 progressively further into the closed working space 113, ie pressure moving to the right.
  • the control openings 33 are designed so that the air from the working space 113 behind the piston 103 via the air grooves 111, the axial air channels 34 and the control openings 33 freely reach vent holes 35 in the front end wall 109 of the ram boring machine 101 and escape there into the atmosphere can.
  • a conical head piece 38 which extends over the compressed air hose 107 in the direction of advance 105 and which represents an insertion cone which is integral with a connecting piece.
  • a traction cable 125 is enclosed between the head piece 38 and the front end of the housing 102.
  • an expansion socket 126 with a jacket 127 extending beyond the rear end of the ram boring machine 101 is pushed onto the device housing 102.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (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)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
EP89112633A 1988-09-01 1989-07-11 Rammbohrgerät zum grabenlosen Verlegen von Versorgungsleitungen Revoked EP0356666B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3829628 1988-09-01
DE3829628A DE3829628A1 (de) 1988-09-01 1988-09-01 Rammbohrgeraet zum grabenlosen verlegen von versorgungsleitungen

Publications (3)

Publication Number Publication Date
EP0356666A2 EP0356666A2 (de) 1990-03-07
EP0356666A3 EP0356666A3 (de) 1991-01-30
EP0356666B1 true EP0356666B1 (de) 1993-10-13

Family

ID=6362029

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89112633A Revoked EP0356666B1 (de) 1988-09-01 1989-07-11 Rammbohrgerät zum grabenlosen Verlegen von Versorgungsleitungen

Country Status (4)

Country Link
US (1) US4981181A (ja)
EP (1) EP0356666B1 (ja)
JP (1) JPH02101281A (ja)
DE (1) DE3829628A1 (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3910354C1 (ja) * 1989-03-30 1990-06-28 Diga - Die Gasheizung Gmbh, 4300 Essen, De
DE4014775C1 (ja) * 1990-05-09 1991-08-01 Tracto-Technik Paul Schmidt Maschinenfabrik Kg, 5940 Lennestadt, De
US5173009A (en) * 1992-01-08 1992-12-22 Martin Moriarty Apparatus for replacing buried pipe
US5456552A (en) * 1993-05-27 1995-10-10 Martin D. Cherrington Method and apparatus for installing pipe in horizontal borehole
FI95962C (fi) * 1994-01-21 1996-04-10 Aineko Ab Oy Laite erityisesti viemäriputkistojen saneeraukseen pakkosujutusmenetelmää hyväksikäyttäen
US5628585A (en) * 1995-04-28 1997-05-13 Tti Trenchless Technologies, Inc. Method and apparatus for removal of utility line and replacement with polyolefin pipe
CA2194079C (en) * 1996-12-19 2005-11-29 Murray P. Craigmile Methods and apparatus for directionally drilling a bore and placing pipe
US6799647B2 (en) 2001-12-06 2004-10-05 Ricky Clemmons Earth drilling and boring system
CA2478442A1 (en) * 2002-03-08 2003-09-18 Shell Canada Limited Steerable soil penetration system
US7681658B2 (en) 2007-11-06 2010-03-23 Maurice DUVAL Pneumatic impact tool

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0350806A2 (de) * 1988-07-14 1990-01-17 Hans Brochier GmbH & Co Bodenverdrängungshammer

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT337763B (de) * 1974-06-14 1977-07-25 Inst Gornogo Dela Sibirskogo O Pneumatische schlagvorrichtung
DE2611677C3 (de) * 1976-03-19 1980-03-13 Paul 5940 Lennestadt Schmidt Vorrichtung zum Einbringen von Rohren
DE2634066C3 (de) * 1976-07-29 1984-09-20 Paul 5940 Lennestadt Schmidt Vorrichtung für den Vor- und Rücklauf von selbstangetriebenen, pneumatischen Rammbohrgeräten
DE2824915C2 (de) * 1978-06-07 1985-01-10 Paul 5940 Lennestadt Schmidt Verfahren zum Herstellen von beiderseits offenen Erdbohrungen
EP0053480B2 (en) * 1980-12-02 1992-07-29 British Gas plc Improvements in the replacement of mains
US4789268B2 (en) * 1982-06-18 1995-12-26 Miller Pipeline Corp Device and method for removing irregularities in or enlarging an underground duct
FR2566023B1 (fr) * 1984-06-14 1986-09-26 Dziewolski Richard Plate-forme marine, notamment destinee a former une base de loisirs
US4662457A (en) * 1984-10-19 1987-05-05 Allied Steel & Tractor Products, Inc. Reversible underground piercing device
GB8429287D0 (en) * 1984-11-20 1984-12-27 Alh Syst Ltd Mole
GB8502971D0 (en) * 1985-02-06 1985-03-06 Brickhouse Dudley Plc Pipe replacement
US4596292A (en) * 1985-04-18 1986-06-24 The Stanley Works Subsoil penetrating apparatus
US4809789A (en) * 1986-08-06 1989-03-07 Oklahoma Airrow, Inc. Finned impact operating boring tool
US4749050A (en) * 1987-02-13 1988-06-07 Ritter Lester L Impact tool for tunneling
DE8717637U1 (de) * 1987-04-01 1989-11-30 Schmidt, Paul, Dipl.-Ing., 5940 Lennestadt Ramme

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0350806A2 (de) * 1988-07-14 1990-01-17 Hans Brochier GmbH & Co Bodenverdrängungshammer

Also Published As

Publication number Publication date
DE3829628A1 (de) 1990-03-15
JPH02101281A (ja) 1990-04-13
US4981181A (en) 1991-01-01
DE3829628C2 (ja) 1990-08-16
EP0356666A3 (de) 1991-01-30
EP0356666A2 (de) 1990-03-07

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