EP0590335A1 - Mouton de forage - Google Patents

Mouton de forage Download PDF

Info

Publication number
EP0590335A1
EP0590335A1 EP93114008A EP93114008A EP0590335A1 EP 0590335 A1 EP0590335 A1 EP 0590335A1 EP 93114008 A EP93114008 A EP 93114008A EP 93114008 A EP93114008 A EP 93114008A EP 0590335 A1 EP0590335 A1 EP 0590335A1
Authority
EP
European Patent Office
Prior art keywords
housing
support ring
boring machine
intermediate piece
ram boring
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.)
Granted
Application number
EP93114008A
Other languages
German (de)
English (en)
Other versions
EP0590335B1 (fr
Inventor
Alfons 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.)
Tracto Technik GmbH and Co KG
Original Assignee
Tracto Technik GmbH and Co KG
Tracto Technik Paul Schmidt Spezialmaschinen KG
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
Application filed by Tracto Technik GmbH and Co KG, Tracto Technik Paul Schmidt Spezialmaschinen KG filed Critical Tracto Technik GmbH and Co KG
Publication of EP0590335A1 publication Critical patent/EP0590335A1/fr
Application granted granted Critical
Publication of EP0590335B1 publication Critical patent/EP0590335B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/24—Damping the reaction force

Definitions

  • the invention relates to a ram boring machine with an impact piston which is axially movable in a housing, a control tube which controls the movement of the impact piston and is connected to a compressed air hose, and an elastic intermediate piece arranged between the housing and the control tube.
  • a ram boring machine of this type has become known from German Offenlegungsschrift 38 31 882.
  • the elastic intermediate piece acts as a damping block and absorbs inevitable shocks and vibrations during operation of the device in order to keep them as far as possible from reversing.
  • the known ram boring machine has radial projections on the head tube and / or on the housing, between which the intermediate piece is held on the head tube and / or in the housing. Due to the elastic intermediate piece between the housing and the head tube, the vibrations and shocks caused by the rapid piston strikes are only dampened and transmitted to the head tube and the connection to the compressed air hose. This prevents vibrations from breaking, particularly in the rear area of the housing, even during extended use and difficult operating conditions.
  • the head tube with the hose connection is no longer exposed to the strong shocks and vibrations of the housing, so that there is no risk of it coming loose automatically. Therefore leaves the compressed air hose is advantageously fastened to the head tube by means of a screw coupling. Overall, the ram boring machine has a longer service life.
  • the elastic intermediate piece can show signs of wear and / or damage after prolonged use, mostly due to improper installation, which can be attributed to the elastic intermediate piece on the head tube and / or in the housing being too loose.
  • the invention is therefore based on the object to improve the known ram boring machine so that there is a considerable extension of the life of the elastic intermediate piece and this only needs to be replaced after a longer operating time, after which maintenance of the ram boring machine is required anyway.
  • the elastic intermediate piece is held under axial prestress by holding elements at least on the housing, possibly also on the head tube.
  • the elastic intermediate piece is not yet under the axial pretension, it can be easily pushed onto the head tube and / or inserted into the housing; however, it is fixed and secured not only in the axial but also in the radial direction by the axial prestress, so that no wear or damage caused by relative movements can occur between the elastic intermediate piece and the housing and / or the control tube.
  • the holding elements can consist of a radial projection on the housing and / or the control tube and a Housing and / or the control tube axially braced support ring exist.
  • This support ring can be axially braced and held by axially parallel clamping screws acting on the housing and / or on the head tube. These clamping screws can be screwed axially into the rear end of the housing.
  • the support ring can also project beyond the outer diameter of the housing at least in regions.
  • a clamping ring is arranged adjacent to a shoulder or a conical region of the housing, and the clamping screws can be arranged between the support ring and the clamping ring on the outside of the housing.
  • this embodiment is essentially advantageous if an expansion cone is arranged on the housing of the ram boring machine, with which holes in the ground with a larger diameter than the diameter of the ram boring machine are produced to let.
  • the axial preload can also be applied to the elastic intermediate piece with a device that does not permanently remain on the ram boring device, which engages on the support ring and displaces it in the housing of the ram boring machine until it is aligned with radial bores in the housing, through which radial retaining screws then extend have the support ring screwed in.
  • the housing 1 is shown, which is shown partially cut at its rear end.
  • a percussion piston moves back and forth in the housing, the movement of which is controlled by means of a control sleeve arranged on a control tube 3, by supplying compressed air to the percussion piston via a bore 15 in the control tube 3.
  • a compressed air hose is screwed onto a thread 3.
  • the control tube 2 is connected to the housing 1 by means of an elastic intermediate piece 6.
  • the elastic intermediate piece 6 consists, for example, of rubber or polyurethane and prevents the impacts and vibrations transmitted by the percussion piston to the housing 1 from reaching the control tube 2 and the compressed air hose without being damped.
  • the compressed air supplied through the bore 15 in the control tube 2 escapes into the atmosphere after the working strokes of the percussion piston via axial air outlet openings 7, which run concentrically to the control tube 2, in the intermediate piece 6.
  • the intermediate piece 6 is fixed with the head tube 2 by a front radial circumferential projection and a rear radial circumferential projection 5 in the axial direction.
  • the rear circumferential projection 5 is shown here in one piece with the head tube 2 for the sake of simplicity, but can be designed as a support ring, similar to the support ring 9 or 16 described below on the housing 1.
  • the housing 1 has a radial, circumferential projection 8 in the region of the elastic intermediate piece 6 which rests the elastic intermediate piece 6 with its front end.
  • an axially projecting, cylindrical extension 10 of the support ring 9 engages.
  • This support ring 9 rests only with this axially projecting cylindrical projection 10 on the elastic intermediate piece 6, but not on the rear end of the housing 1.
  • the support ring 9 and the rear end of the outer surface of the housing touch each other via conical surfaces, which limit the preload and prevent vibrations of the support ring.
  • the support ring 9 also has a radial projection 11, for example in the form of a diameter enlargement which projects beyond the outer diameter of the housing 1.
  • a clamping ring 12 is arranged axially offset and bears against a conical region 13 of the housing 1.
  • Several clamping screws 14 are evenly distributed on the circumference of the housing 1 and arranged in bores in the radial projection 11 of the support ring 9 and in the clamping ring 12.
  • the elastic intermediate piece 6 with the head tube 2 already attached to it is inserted into the housing 1 to the radial projection 8, which can be accomplished easily and without the use of tools, since there is no clamping fit between the elastic intermediate piece 6 and the housing 1 . Then the support ring 9 is attached, and the clamping screws 14 are tightened until the required axial preload of the elastic intermediate piece 6 is reached.
  • axially bracing the elastic intermediate piece 6 a radial bracing of the elastic intermediate piece 6 in the bore in the housing 1 is simultaneously achieved, so that a firm fit of the elastic intermediate piece is ensured during operation.
  • the embodiment according to FIG. 2 uses a clamping ring 16, which is initially displaced axially so far by means of an auxiliary device, not shown, until the required axial preload is applied to the elastic intermediate piece 6.
  • a clamping ring 16 which is initially displaced axially so far by means of an auxiliary device, not shown, until the required axial preload is applied to the elastic intermediate piece 6.
  • radial bores in the support ring 16 are aligned with corresponding bores in the housing 1, so that radial retaining screws 17 can be inserted into these bores.
  • the auxiliary device for applying the axial preload can be released from the ram boring machine.
  • the support ring can also be held in the housing by a snap ring or by a bayonet connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (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)
  • Earth Drilling (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
EP93114008A 1992-09-19 1993-09-02 Mouton de forage Expired - Lifetime EP0590335B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4231400A DE4231400C1 (de) 1992-09-19 1992-09-19 Rammbohrgerät
DE4231400 1992-09-19

Publications (2)

Publication Number Publication Date
EP0590335A1 true EP0590335A1 (fr) 1994-04-06
EP0590335B1 EP0590335B1 (fr) 1997-04-16

Family

ID=6468346

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93114008A Expired - Lifetime EP0590335B1 (fr) 1992-09-19 1993-09-02 Mouton de forage

Country Status (4)

Country Link
US (1) US5558167A (fr)
EP (1) EP0590335B1 (fr)
JP (1) JP2887052B2 (fr)
DE (1) DE4231400C1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19650014C2 (de) * 1996-12-03 2002-04-11 Tracto Technik Rammbohrgerät
DE19830428C2 (de) * 1998-03-21 2001-02-15 Tracto Technik Formschlüssige Verbindung zwischen einem Rohr und einem in das Rohr eingesetzten Anschlagring für den Schlagkolben eines Rammbohrgerätes
JP4575457B2 (ja) * 2004-12-07 2010-11-04 リム、ビョン−ドク 掘削用エアーハンマー及びその駆動方法（Ａｇｒｏｕｎｄｄｒｉｌｌｉｎｇｈａｍｍｅｒａｎｄｔｈｅｄｒｉｖｉｎｇｍｅｔｈｏｄ）
US20070246237A1 (en) * 2006-04-24 2007-10-25 Emile Homsi Vibration dampening of a power tool
JP2018111961A (ja) * 2017-01-10 2018-07-19 旭化成建材株式会社 杭打ち方法
CN115228028B (zh) * 2022-06-14 2023-08-25 河南理工大学 一种便携式抑燃抑爆消防枪及其方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2147035A (en) * 1983-09-22 1985-05-01 Kayes Engineering Limitd Improvements in and relating to impact-action self-propelled mechanism for driving holes in the earth
DE3833882A1 (de) * 1988-10-05 1990-04-12 Schmidt Paul Rammbohrgeraet

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1248481A (en) * 1916-08-09 1917-12-04 Cleveland Rock Drill Co Fluid-operated drill.
US1554985A (en) * 1924-04-03 1925-09-29 Ingersoll Rand Co Water head
US3756328B1 (en) * 1970-01-19 1991-01-29 Pneumatically operated impact-action self-propelled mechanism
NL189974C (nl) * 1980-04-08 1993-09-16 Rotterdamsche Droogdok Mij Heiblok.
US4809789A (en) * 1986-08-06 1989-03-07 Oklahoma Airrow, Inc. Finned impact operating boring tool

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2147035A (en) * 1983-09-22 1985-05-01 Kayes Engineering Limitd Improvements in and relating to impact-action self-propelled mechanism for driving holes in the earth
DE3833882A1 (de) * 1988-10-05 1990-04-12 Schmidt Paul Rammbohrgeraet

Also Published As

Publication number Publication date
JPH06235217A (ja) 1994-08-23
JP2887052B2 (ja) 1999-04-26
DE4231400C1 (de) 1994-01-05
US5558167A (en) 1996-09-24
EP0590335B1 (fr) 1997-04-16

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