EP0353400A2 - Mouton de forage - Google Patents
Mouton de forage Download PDFInfo
- Publication number
- EP0353400A2 EP0353400A2 EP89107906A EP89107906A EP0353400A2 EP 0353400 A2 EP0353400 A2 EP 0353400A2 EP 89107906 A EP89107906 A EP 89107906A EP 89107906 A EP89107906 A EP 89107906A EP 0353400 A2 EP0353400 A2 EP 0353400A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- collar
- chisel
- tip
- boring machine
- 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
Links
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000009527 percussion Methods 0.000 abstract description 16
- 239000002689 soil Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17042—Lost motion
Definitions
- the invention relates to a ram boring machine with an impact piston which can be displaced in a tubular housing, a displaceably mounted chisel which is guided through a housing tip and which is guided with a collar in a housing bore which has a front and a rear stop which limits the stroke of the chisel, and with an in the working space of the percussion piston protruding.
- a ram boring machine with a two-part housing ie with a housing tip screwed into the housing receiving the percussion piston
- the housing tip encloses a chisel which is designed as a striking tip at its front end in the working or impact direction and has a collar and a pin at the other end, the collar being received by a bore in the front housing.
- the pin represents the impact surface for the associated percussion piston and protrudes in the starting position before the working stroke from a ring screwed into the housing with the housing tip.
- the ring limits the movement of the collar and thus the chisel against the working direction of the striking tip.
- ram boring machines are also known in which the housing and the housing tip are in one piece; otherwise there are no significant differences between a two-part and a one-piece device housing.
- the invention has for its object to design a generic ram boring machine so that in particular the disadvantages mentioned when used in soft soils can be avoided.
- an inner collar integral with the housing forms the rear stop.
- the inner collar and the end face of the housing tip screwed into the housing can preferably delimit the housing bore, wherein a compression spring acting on the collar can advantageously be arranged in a recess in the housing tip.
- the housing bore receiving the chisel collar and at the same time the rear abutment surface of the inner collar can be produced, for example, in a simple manner by turning out the end face of the housing, e.g. the hole can be turned from the full material.
- the length of the threaded section of the housing tip screwed into the front housing bore is dimensioned such that the distance from the end face of the screwed housing tip to the collar pressed by the compression spring against the rear stop of the inner collar is greater than the protruding length of the pin, without further effort the difference according to the invention between the projection length and the stroke of the chisel collar.
- the impact energy of the percussion piston is thus transmitted either via the end face of the housing tip or via the inner collar fixed to the housing.
- a percussion piston 3 which is only shown with its front end, is guided to move back and forth.
- the percussion piston 3 receives its impact energy by supplying compressed air to the housing 2. Since these are known measures and constructions, the rear part of the housing 2 has not been shown in this respect.
- the main housing 2 is provided at its front end in the direction of impact 4 with an internal thread 5, into which a housing tip 6 is screwed with a peg-like thread extension 7.
- a chisel 10 formed at its front end as a striking tip 9 is guided.
- the striking tip 9 is provided with a step head 11 which is fastened to the chisel 10 by means of pins 12.
- the pins 12 penetrate a housing bore 13 of the housing tip 6.
- a collar 14 of the chisel 10 is also arranged in the housing bore 13; the collar 14 touches the rear stop 15 defined by the housing bore 13 in the starting position shown.
- a pin 16 of the chisel 10 extends through the threaded extension 7 of the housing tip 6 and projects into the working space 17 of the percussion piston 3.
- the protruding length 18 of the pin 16 is smaller than the maximum stroke 19 of the chisel 10 in the direction of impact 4; the stroke path 19 results from the path that the chisel collar 14 could theoretically cover from the rear stop position shown up to the pins 12 which simultaneously define the front stop 20.
- the percussion piston 3 hits the end face 21 of the housing tip 6 after a stroke of the chisel 10 corresponding to the protruding length 18, the chisel 10 then no longer moving forward and the collar 14 the pins 12 or can not reach the front stop 20.
- the housing bore 24 has a front end Section with an internal thread 25 into which a housing tip 106 is screwed with a pin-like thread extension 107.
- the chisel 110 has a collar 114 and a pin 116 which penetrates the through bore 22 of the inner collar 23 and projects into the working space 117 of the striking piston 103.
- a compression spring 27 holds the collar 114 in abutment against a rear stop 115 defined by the inner collar 23; the compression spring 27 is in a cylindrical recess 28 of the extension screwed into the housing 102 tion 107 of the housing tip 106 is arranged.
- the protrusion length 118 ie the extent to which the pin 116 protrudes from the inner collar 23 into the working space 117 of the percussion piston 103, is smaller than the maximum stroke path 119 of the chisel 110. Due to the difference between the protrusion length 118 and the stroke path 119, the percussion piston 103 moving chisel 110 forward in impact direction 104 after a stroke of chisel 110 corresponding to protruding length 118 on inner collar 23, which then offers a flush-fitting striking surface with the end face of pin 116. The impact energy of the impact piston 103 is introduced into the housing 102 via the inner collar 23.
- the collar 114 has in this case approached the front stop 120 defined by the housing tip 106 in accordance with the dimension of the protruding length 118 of the pin 116; However, the collar 114 cannot reach the front stop 120.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Percussive Tools And Related Accessories (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3825800 | 1988-07-29 | ||
DE3825800A DE3825800A1 (de) | 1988-07-29 | 1988-07-29 | Rammbohrgeraet |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0353400A2 true EP0353400A2 (fr) | 1990-02-07 |
EP0353400A3 EP0353400A3 (fr) | 1991-02-06 |
EP0353400B1 EP0353400B1 (fr) | 1994-03-16 |
Family
ID=6359839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89107906A Expired - Lifetime EP0353400B1 (fr) | 1988-07-29 | 1989-05-02 | Mouton de forage |
Country Status (4)
Country | Link |
---|---|
US (1) | US5095998A (fr) |
EP (1) | EP0353400B1 (fr) |
JP (1) | JP2693234B2 (fr) |
DE (1) | DE3825800A1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997002386A1 (fr) * | 1995-07-06 | 1997-01-23 | Komatsu Ltd. | Rouleau-compacteur hydraulique |
CA2194079C (fr) * | 1996-12-19 | 2005-11-29 | Murray P. Craigmile | Methode et appareil pour realiser un trou de forage directionnel et mettre en place des tiges de forage |
US5896934A (en) * | 1997-09-08 | 1999-04-27 | Chicago Pneumatic Tool Company | Reciprocating tool having a piston retainer |
KR20010037320A (ko) * | 1999-10-15 | 2001-05-07 | 양재신 | 브레이커의 툴홀더 장치 |
KR20010037319A (ko) * | 1999-10-15 | 2001-05-07 | 양재신 | 브레이커용 툴홀더 |
US6273201B1 (en) * | 2000-02-16 | 2001-08-14 | Earth Tool Company, L.L.C. | Pneumatic ground piercing tool with movable chisel head |
US7066279B2 (en) | 2004-11-08 | 2006-06-27 | Earth Tool Company, L.L.C. | Pneumatic ground piercing tool |
CA2665298C (fr) * | 2008-05-03 | 2016-03-01 | Earth Tool Company, Llc | Outil a percussion pneumatique |
JP5858259B2 (ja) * | 2014-07-24 | 2016-02-10 | 株式会社全晴 | エアーハンマー工具、及びエアーハンマー工具の打撃力調整方法 |
US10641051B1 (en) * | 2016-09-07 | 2020-05-05 | Dandelion Energy, Inc. | Systems and methods for coupling and decoupling drill heads for ground loop preparation for geothermal applications |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1481641A (en) * | 1920-11-09 | 1924-01-22 | Ingersoll Rand Co | Tie-tamper front-end construction |
US1525471A (en) * | 1921-07-25 | 1925-02-10 | Chicago Pneumatic Tool Co | Coupling for percussive tools |
US2181381A (en) * | 1937-07-26 | 1939-11-28 | John J Roberts | Internally cushioned tool-and-chuck lock for power hammers |
US2889811A (en) * | 1956-08-10 | 1959-06-09 | Electro Chimie Metal | Percussion tools |
DE2157259B1 (de) * | 1971-11-18 | 1972-11-09 | Tracto Technik | Rammbohrgerät |
FR2223143A1 (en) * | 1973-03-30 | 1974-10-25 | Favre Jacques | Guide for tools or bits in pneumatic hammers - has conventional barrel extended as slide fit over flanged tool shaft |
DE2537176B1 (de) * | 1975-08-21 | 1976-12-09 | Jenne & Strahm Ag | Steuervorrichtung fuer den vor- und ruecklauf von selbstgetriebenen pneumatischen rammbohrgeraeten |
DE3124524A1 (de) * | 1981-06-23 | 1983-01-13 | Gustav Dr.-Ing. 4300 Essen Jenne | Rammkopf fuer selbstgetriebene pneumatische rammbohrgeraete |
EP0283734A2 (fr) * | 1987-03-27 | 1988-09-28 | Helmuth Römer | Appareil de forage à percussion à tête de frappe mobile |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3625295A (en) * | 1970-02-12 | 1971-12-07 | Kent Air Tool Co | Airhammer |
DE8310178U1 (de) * | 1982-10-08 | 1983-10-06 | Markovic, Vladimir, 61113 Ljublijana | Pneumatisches, selbstgetriebenes rammbohrgeraet |
SE444401B (sv) * | 1983-01-24 | 1986-04-14 | Atlas Copco Ab | Energiabsorberande inspenningsenhet for slagverktyg |
-
1988
- 1988-07-29 DE DE3825800A patent/DE3825800A1/de active Granted
-
1989
- 1989-05-02 EP EP89107906A patent/EP0353400B1/fr not_active Expired - Lifetime
- 1989-06-22 JP JP1160595A patent/JP2693234B2/ja not_active Expired - Lifetime
-
1990
- 1990-07-06 US US07/550,210 patent/US5095998A/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1481641A (en) * | 1920-11-09 | 1924-01-22 | Ingersoll Rand Co | Tie-tamper front-end construction |
US1525471A (en) * | 1921-07-25 | 1925-02-10 | Chicago Pneumatic Tool Co | Coupling for percussive tools |
US2181381A (en) * | 1937-07-26 | 1939-11-28 | John J Roberts | Internally cushioned tool-and-chuck lock for power hammers |
US2889811A (en) * | 1956-08-10 | 1959-06-09 | Electro Chimie Metal | Percussion tools |
DE2157259B1 (de) * | 1971-11-18 | 1972-11-09 | Tracto Technik | Rammbohrgerät |
FR2223143A1 (en) * | 1973-03-30 | 1974-10-25 | Favre Jacques | Guide for tools or bits in pneumatic hammers - has conventional barrel extended as slide fit over flanged tool shaft |
DE2537176B1 (de) * | 1975-08-21 | 1976-12-09 | Jenne & Strahm Ag | Steuervorrichtung fuer den vor- und ruecklauf von selbstgetriebenen pneumatischen rammbohrgeraeten |
DE3124524A1 (de) * | 1981-06-23 | 1983-01-13 | Gustav Dr.-Ing. 4300 Essen Jenne | Rammkopf fuer selbstgetriebene pneumatische rammbohrgeraete |
EP0283734A2 (fr) * | 1987-03-27 | 1988-09-28 | Helmuth Römer | Appareil de forage à percussion à tête de frappe mobile |
Also Published As
Publication number | Publication date |
---|---|
DE3825800A1 (de) | 1990-02-01 |
DE3825800C2 (fr) | 1991-08-29 |
JPH0247492A (ja) | 1990-02-16 |
EP0353400B1 (fr) | 1994-03-16 |
EP0353400A3 (fr) | 1991-02-06 |
JP2693234B2 (ja) | 1997-12-24 |
US5095998A (en) | 1992-03-17 |
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