EP0273974A1 - Dispositif pour percer des trous dans le sol - Google Patents

Dispositif pour percer des trous dans le sol Download PDF

Info

Publication number
EP0273974A1
EP0273974A1 EP86904469A EP86904469A EP0273974A1 EP 0273974 A1 EP0273974 A1 EP 0273974A1 EP 86904469 A EP86904469 A EP 86904469A EP 86904469 A EP86904469 A EP 86904469A EP 0273974 A1 EP0273974 A1 EP 0273974A1
Authority
EP
European Patent Office
Prior art keywords
housing
grooves
threaded sleeve
threaded
ground
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
EP86904469A
Other languages
German (de)
English (en)
Other versions
EP0273974A4 (fr
EP0273974B1 (fr
Inventor
Alexandr Dmitrievich Kostylev
Alexei Danilovich Terskov
Konstantin Borisovich Skachkov
Vladimir Dmitrievich Plavskikh
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.)
Institut Gornogo dela Sibirskogo Otdelenia Akademii Nauk SSSR
Original Assignee
Institut Gornogo dela Sibirskogo Otdelenia Akademii Nauk SSSR
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 Institut Gornogo dela Sibirskogo Otdelenia Akademii Nauk SSSR filed Critical Institut Gornogo dela Sibirskogo Otdelenia Akademii Nauk SSSR
Priority to AT86904469T priority Critical patent/ATE48293T1/de
Publication of EP0273974A1 publication Critical patent/EP0273974A1/fr
Publication of EP0273974A4 publication Critical patent/EP0273974A4/fr
Application granted granted Critical
Publication of EP0273974B1 publication Critical patent/EP0273974B1/fr
Expired legal-status Critical Current

Links

Images

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

Definitions

  • the present invention relates to compressed air actuated devices with impact effect used in construction, in particular to devices for driving holes in the ground.
  • this invention can be applied to devices designed to drill holes in soil to be compacted when trenchlessly laying underground utility lines beneath roads, fillings, and other structures.
  • the working element of a pneumatic drive-through is a cylindrical housing with an internal cavity, in which an impact element and an air distribution nozzle are accommodated.
  • the air distribution connection is connected to the housing by means of a threaded bush.
  • the striking element When the machine is running, the striking element performs a reciprocating movement in the axial direction under the action of the compressed air that enters the working chambers via the air distribution nozzle and strikes the front part of the housing with each working cycle, which in this way results in the ground is driven in, creating a hole with compressed heat.
  • the diameter of the bore is practically the same as the diameter of the housing of the pneumatic drive-through. During the operation of this pneumatic through drive, it is necessary to determine the threaded connection between the housing and the threaded bushing.
  • a device with impact action for driving boreholes in the ground is known (see “Pnevmoproboiniki i mashiny dlya zabivania v grunt legkikh stroitelnikh elementov” / Pneumatic punches and machines for driving light components into the ground /, by ADKostylev, KSGurkov, BNSmolyanitsky, Novosibirsk, 1980, publisher “Nauka”, p. 9), which contains a housing, a striking element and an air distribution nozzle.
  • the air distribution connector is connected to the housing by means of a threaded bush with a locking washer.
  • the device is characterized by a relatively low operational reliability because, due to the unscrewing of the threaded sleeve in the running device, the air distribution nozzle is displaced along the axis, which leads to a disturbance in the working cycle.
  • the axial rearward displacement of the air distribution nozzle causes the compressed air to be let out prematurely into the front chamber of the device and to brake the striking element before the impact, which reduces the impact energy and consequently the work performance.
  • the front chamber of the device remains exposed to the pressure longer (the the front edge of the air distribution nozzle is now moved backwards).
  • the sole organ receives a larger kinetic energy, and after the later exhaust of the compressed air from the front chamber (the rear edge of the air distribution nozzle is also shifted to the rear), the striking element sets a larger streoke (the braking distance of the striking element increases) and can strike exert on the front face of the threaded sleeve.
  • the striking member strikes both the front and the rear of the device due to the loosening of the threaded sleeve.
  • the working conditions of the device are disturbed, which can lead to a reduction in the driving speed until the device is completely stopped.
  • the invention has for its object to provide a device for driving holes in the ground, in which the structural design of the threaded sleeve can ensure the stabilization of the edges of the air distribution nozzle when the device is operating in the ground.
  • the essence of the invention is that in the device for advancing bores in the ground, which contains a housing with a reciprocatingly arranged in this striking element, which forms a front chamber in the housing, which has openings in the striking element with a rear chamber is connected, which is formed by the cavity of the impact member and the air distribution nozzle, which is connected via an elastic element to a threaded bushing mounted in the rear end of the housing, according to the invention, at least two grooves are machined on the outer surface of the threaded bushing, which are diametrically opposed to each other and extend at an angle to the device axis, the inclination direction of the grooves with the direction of the thread of the Ge - threaded bushing coincides.
  • the design of the grooves at an angle to the axis of the device favors the generation (creation) of a circumferential force that the thread s e fixed in relation to the housing.
  • Such an embodiment of the device is extremely simple and suitable for production.
  • the grooves form an angle within 30 to 60 degrees with the axis of the device.
  • the threaded bushing is reliably fixed in relation to the housing. It must be noted that the circumferential force can be adjusted by changing the angle of inclination of the grooves to the device axis.
  • the device for advancing bores in the ground has a hollow housing 3 1 (FIG. 1) with a striking member 2 arranged to be reciprocable therein.
  • the outer surface of the striking member 2 forms a front working chamber 3 with the housing 1 a rear working chamber 4 is provided which is connected to the front working chamber 3 via openings 5 made in the wall of the striking element 2.
  • an air distribution nozzle 6 is accommodated, which is connected by means of an elastic element 7 to a threaded bushing 8 mounted in the housing 1 by means of a thread.
  • the rear working chamber 4 is through the cavity of the impact member 2 and the air distribution nozzle 6 educated. Grooves 9 are incorporated on the outer surface of the threaded bushing 8 (FIG.
  • each of the grooves 9 is between 2 and 5% of the diameter of the threaded bushing 8.
  • the direction of inclination of the grooves 9 coincides with the threading direction of the threaded bushing 8.
  • Exhaust ducts 10 are provided in the elastic element 7. The compressed air is fed to the device via a hose 11.
  • the device for driving 8 holes in the ground works as follows.
  • the compressed air is supplied from the source of a pressurized gaseous medium (not shown) to the device via the hose 11 attached to the air distribution nozzle 6. Via the central channel of the air distribution nozzle 6, the compressed air enters the front chamber 3 and flows through the openings 5 of the impact device 2 into the front chamber 3. As a result of the difference in area of the impact member 2 on the side of the front chamber 3 and the rear chamber 4, this becomes Percussion organ pushed back (to the right in the drawing). After the openings 5 of the impact member 2 have passed the rear edge of the air distribution nozzle 6, the compressed air is exhausted from the front chamber 3 via the openings 5 of the impact member 2 and the channels 10 in the elastic element 7 into the atmosphere.
  • the sole member 2 comes to a standstill without causing a blow to the front end face of the threaded bushing 8 and begins to move forward (to the left in the drawing) until the openings 5 of the Impact member 2 have passed the front edge of the air distribution nozzle 6.
  • the striking element 2 strikes the front end face of the housing 1 and knocks it into the ground. Under the effect of the blows, the device moves in the ground and leaves a hole behind. Flows out of the bore walls that touch the outer surface of the threaded bushing 8 Soil into the grooves 9.
  • the earth acts on the rear wall of the grooves 9 and generates a circumferential force which acts on the threaded bushing 8 and is directed towards the threading of the threaded bushing 8. Under the effect of this peripheral force, the threaded bushing 8 is always screwed into the housing 1. This ensures that the connection of the housing 1 and the threaded bushing 8 is undetachable.
  • the proposed invention relates to the field of construction technology and is intended for devices with impact action, which are used to advance holes in the ground for different purposes.
  • the application of the invention makes it possible to increase the operational safety of the device and to increase the reliability and service life of the construction thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Drilling And Boring (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

Le dispositif comporte un boîtier (1), un percuteur (2) monté à l'intérieur de celui-ci et muni d'ouvertures (5), un manchon de distribution d'air (6), un élément élastique (7) et un manchon fileté (8). La surface extérieure du manchon fileté (8) est doté de rainures (9) orientées à un angle par rapport à l'axe du dispositif. De la terre entre dans les rainures (9) du manchon fileté (8) pendant le déplacement du dispositif, et crée une force périphérique qui immobilise le manchon fileté (8) par rapport au boîtier (1).
EP86904469A 1986-04-30 1986-04-30 Dispositif pour percer des trous dans le sol Expired EP0273974B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86904469T ATE48293T1 (de) 1986-04-30 1986-04-30 Vorrichtung zum bohren von loechern in den boden.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SU1986/000043 WO1987006638A1 (fr) 1986-04-30 1986-04-30 Dispositif pour percer des trous dans le sol

Publications (3)

Publication Number Publication Date
EP0273974A1 true EP0273974A1 (fr) 1988-07-13
EP0273974A4 EP0273974A4 (fr) 1988-07-14
EP0273974B1 EP0273974B1 (fr) 1989-11-29

Family

ID=21616995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86904469A Expired EP0273974B1 (fr) 1986-04-30 1986-04-30 Dispositif pour percer des trous dans le sol

Country Status (6)

Country Link
US (1) US4785898A (fr)
EP (1) EP0273974B1 (fr)
JP (1) JPS63503155A (fr)
AT (1) ATE48293T1 (fr)
DE (1) DE3667187D1 (fr)
WO (1) WO1987006638A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990012164A1 (fr) * 1989-04-11 1990-10-18 Moskovskoe Nauchno-Proizvodstvennoe Obiedinenie Po Mekhanizirovannomu Stroitelnomu Instrumentu I Otdelochnym Mashinam Dispositif de perçage de trous dans le sol
WO1991019073A1 (fr) * 1990-06-06 1991-12-12 Kayes Allan G Marteau de forage comportant un mecanisme de marche arriere

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH677806A5 (fr) * 1987-12-30 1991-06-28 Terra Ag Tiefbautechnik
USRE36848E (en) * 1992-07-17 2000-09-05 Smith International, Inc. Air percussion drilling assembly
US5305837A (en) * 1992-07-17 1994-04-26 Smith International, Inc. Air percussion drilling assembly for directional drilling applications
USRE36166E (en) * 1992-07-17 1999-03-30 Smith International, Inc. Air percussion drilling assembly for directional drilling applications
GB2313643A (en) * 1996-05-31 1997-12-03 Inst Gornogo Dela Sibirskogo O Apparatus for impact action

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2631823A (en) * 1947-10-21 1953-03-17 Fred E Dannheim Pipe driving point
FR1486204A (fr) * 1967-10-04
US3952813A (en) * 1975-02-07 1976-04-27 Nikolai Prokhorovich Chepurnoi Percussive device for driving holes in soil
US4132277A (en) * 1977-10-03 1979-01-02 Tupitsyn Konstantin K Pneumatic reversible impact device for driving holes in soil
US4295533A (en) * 1979-03-26 1981-10-20 Paul Schmidt Pneumatically operated ram borer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2695673A (en) * 1952-07-21 1954-11-30 William E Coyle Well casing scraping tool
US3756328B1 (en) * 1970-01-19 1991-01-29 Pneumatically operated impact-action self-propelled mechanism
US3708023A (en) * 1970-12-30 1973-01-02 Inst Gornogo Dela Sibirskogo O Self-propelled air-punching mechanism
US4171727A (en) * 1976-10-22 1979-10-23 Institut Gornogo Dela Sibirskogo Otdelenia Akademii Nauk S S S R Reversible, percussive device for ground perforation
SU1134674A1 (ru) * 1979-02-22 1985-01-15 Институт Горного Дела Со Ан Ссср Пневматическое устройство ударного действи дл образовани скважин в грунте
SU1139808A1 (ru) * 1980-04-23 1985-02-15 Институт Горного Дела Со Ан Ссср Реверсивное пневматическое устройство ударного действи дл пробивани скважин в грунте
SU1099016A1 (ru) * 1983-02-21 1984-06-23 Харьковский Автомобильно-Дорожный Институт Им.Комсомола Украины Устройство ударного действи дл образовани скважин в грунте
SU1250619A1 (ru) * 1984-03-06 1986-08-15 Институт Горного Дела Со Ан Ссср Пневматическое реверсивное устройство дл образовани скважин в грунте

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1486204A (fr) * 1967-10-04
US2631823A (en) * 1947-10-21 1953-03-17 Fred E Dannheim Pipe driving point
US3952813A (en) * 1975-02-07 1976-04-27 Nikolai Prokhorovich Chepurnoi Percussive device for driving holes in soil
US4132277A (en) * 1977-10-03 1979-01-02 Tupitsyn Konstantin K Pneumatic reversible impact device for driving holes in soil
US4295533A (en) * 1979-03-26 1981-10-20 Paul Schmidt Pneumatically operated ram borer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO8706638A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990012164A1 (fr) * 1989-04-11 1990-10-18 Moskovskoe Nauchno-Proizvodstvennoe Obiedinenie Po Mekhanizirovannomu Stroitelnomu Instrumentu I Otdelochnym Mashinam Dispositif de perçage de trous dans le sol
US5133416A (en) * 1989-04-11 1992-07-28 Dobroselsky Petr V Device for drilling holes in the ground
WO1991019073A1 (fr) * 1990-06-06 1991-12-12 Kayes Allan G Marteau de forage comportant un mecanisme de marche arriere

Also Published As

Publication number Publication date
WO1987006638A1 (fr) 1987-11-05
JPS63503155A (ja) 1988-11-17
DE3667187D1 (de) 1990-01-04
US4785898A (en) 1988-11-22
EP0273974A4 (fr) 1988-07-14
EP0273974B1 (fr) 1989-11-29
ATE48293T1 (de) 1989-12-15

Similar Documents

Publication Publication Date Title
DE3533995C2 (fr)
DE69704024T2 (de) Vorrichtung für dreh- und schlagbohren und verfahren dafür
DE60127112T2 (de) Expandierbarer meissel
DE3633749C2 (de) Druckluft-Schlagbohrverfahren und Druckluft-Schlagbohrvorrichtung zur Durchführung desselben
DE3710162C1 (de) Rammbohrgeraet mit beweglichem Meissel
DE2157259B1 (de) Rammbohrgerät
DE2527595A1 (de) Umkehrbare pressluft-schlagvorrichtung zur bildung von bohrloechern im boden durch verdichten
DE3650026T2 (de) Schlagwerkzeug zum Bohren von Löchern in den Boden.
DE4433533C1 (de) Rammbohrvorrichtung
EP1948900B1 (fr) Dispositif de forage du sol
DE69417641T2 (de) Im-Loch-Bohrmaschine, betrieben mit einem Druckmedium
DE2810606C2 (de) Meißel für ein im Gestein schlagend arbeitendes Brechwerkzeug
DE69119402T2 (de) Im bohrloch zu gebrauchendes bohrwerkzeug zum bohren vor einer verrohrung
EP0273974B1 (fr) Dispositif pour percer des trous dans le sol
EP0391161A2 (fr) Dispositif automoteur de forage par battage
DE3840923A1 (de) Rammbohrgeraet
DE10106942B4 (de) Pneumatisches Bodenstechwerkzeug mit beweglichem Meißelkopf
DE19725052C2 (de) Bohrgerät
DE4116771C2 (de) Vorrichtung zum Herstellen von Erdbohrungen
DE3027990C2 (fr)
DE3029963C2 (de) Bohrdüse
DE19946587A1 (de) Vorrichtung zum Richtungsbohren
DE1811202A1 (de) Bohrer
EP3770375A1 (fr) Tête de forage autonome
DE3318297A1 (de) Druckluftschlagvorrichtung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19871216

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE FR GB IT LI SE

A4 Supplementary search report drawn up and despatched

Effective date: 19880714

17Q First examination report despatched

Effective date: 19881202

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR GB IT LI SE

REF Corresponds to:

Ref document number: 48293

Country of ref document: AT

Date of ref document: 19891215

Kind code of ref document: T

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 3667187

Country of ref document: DE

Date of ref document: 19900104

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19900418

Year of fee payment: 5

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910419

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19910426

Year of fee payment: 6

Ref country code: AT

Payment date: 19910426

Year of fee payment: 6

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19910501

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910507

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19910531

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19920430

Ref country code: GB

Effective date: 19920430

Ref country code: CH

Effective date: 19920430

Ref country code: AT

Effective date: 19920430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19921230

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930101

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19920430

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 86904469.3

Effective date: 19911209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050430