US3705633A - Reversible percussion device for making holes in ground by compacting the latter - Google Patents
Reversible percussion device for making holes in ground by compacting the latter Download PDFInfo
- Publication number
- US3705633A US3705633A US131136A US3705633DA US3705633A US 3705633 A US3705633 A US 3705633A US 131136 A US131136 A US 131136A US 3705633D A US3705633D A US 3705633DA US 3705633 A US3705633 A US 3705633A
- Authority
- US
- United States
- Prior art keywords
- bushing
- casing
- air
- housing
- projections
- 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.)
- Expired - Lifetime
Links
- 230000002441 reversible effect Effects 0.000 title claims abstract description 26
- 238000009527 percussion Methods 0.000 title claims abstract description 23
- 230000009471 action Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 241001526284 Percus <genus> Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 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
Definitions
- reversible percussion devices which have a housing pointed at its one side and accommodating a percussor, said percussor forming front and rear variable volume, working chambers.
- the percussor Under the action of compressed air supplied into the chambers, the percussor reciprocates and delivers percussions upon the housing, thus making drives the latter move in the ground.
- Compressed air is supplied into the chambers along an air-supplying, stepped bushing which interacts with the percutor in the course of movement of the latter and is fixed in the rear portion of the housing by means of a nut so that it can displace in the latter in the axial direction.
- the compressed air is delivered into the front chamber from the rear one through ports provided in the tail portion of the percussor.
- an air-supplying bushing has two rows of chamfered projections provided on the outer surface of a step of a smaller diameter, and a casing mounted between said projections, is rigidly secured to the tail portion of a housing and, during the reversing of the device, movement alternately interacts at its butt ends having chamfered projections cooperating with the rows of the projections provided on the airsupplying bushing to cause the latter displace in an axial direction from one position into another.
- an axial or bore space accommodating an enlarged step 7 of a greater diameter of an air-supplying or control bushing 7.
- the walls of the percussor 2 are provided with ports 8 used to intercommunicate the chambers 5 and 6 during a work and/or return stroke.
- the bushing 7 is mounted for axial movement a casing or sleeve 9 so that the bushing can move in the axial direction, the casing 9 being rigidly fixed in the housing 1 by means of a butt or rear end flange 9.
- the device includes a compression spring 10 normally thrusting between the enlarged step 7 of a greater diameter of the bushing 7 and the casing flange 9.
- a hose 11 used to supply compressed air from a compressor, (not shown) and the fllange 9' of the casing 9 is provided with apertures 12 used to exhaust the air used.
- the device functions as follows:
- the percussor 2 moves to the left, i.e. in the direction of the front chamber 5 (to the position shown in FIG. 1), and delivers a percussion or impact upon the inner surface of the housing 1, as a result of which the housing 1 moves forward and penetrates into the ground.
- the ports 8 communicating the front chamber 5 (through the intermediary of the chamber 6, duct 19 and hose 11) with a source of compressed air are opened at a predetermined distance from the extreme left position of the percussor 2.
- the percutor 2 Due to its jumping-away on reaction impact and the built-up of pressure of the air in the chamber 5, the percutor 2 starts moving in the reverse direction since its effective, working area at the side of the chamber 5 is .greater than the effective-working area at the opposite side of the chamber 6 which is constantly communicated with the source of the compressed air.
- the back-blow force (the reacting force) arising during the device operation and acting in the direction opposite to that of the useful movement of the device, is balanced by the forces of friction arising between the housing 1 and the ground.
- the percussor 2 during its reverse movement reaches the flange 9" of the casing 9 and delivers a rearwardly directed percussion upon the latter, as a result of which the housing moves rearwardly.
- the reacting force acting upon the housing 1 in the direction opposite to that of the useful movement is balanced by the forces of friction arising between the ground and the housing 1.
- a reversible percussion device comprising a housreciprocation in the space in the latter under the action of the compressed air supplied alternately into said chambers; a stepped air-supplying bushing mounted in said housing so that it can displace in the axial direction and interacts through a step of a larger diameter with said percussor in the course of movement; said bushing having two rows of chamfered projections provided on the outer surface of a smaller diameter; a casing mounted on the step of a smaller diameter of said airsupplying bushing between said rows of the projections and rigidly secured to said housing; said casing having chamfered projections provided at the butt ends thereof and interacting during the reversing of the device movement the respective rows of the projec tions provided on said bushing.
- a reversible percussion device including a spring normally reacting between said casing and the step of a larger diameter of said air-supplying bushing for effecting axial displacement of said bushing upon discontinuation of the supply of the compressed air into the chambers of the device.
- a reversible percussion device in which the interacting butt ends of the projections of said air-supplying bushing and said casing are formed as screw surfaces.
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Earth Drilling (AREA)
- Percussive Tools And Related Accessories (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13113671A | 1971-04-05 | 1971-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3705633A true US3705633A (en) | 1972-12-12 |
Family
ID=22448044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US131136A Expired - Lifetime US3705633A (en) | 1971-04-05 | 1971-04-05 | Reversible percussion device for making holes in ground by compacting the latter |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3705633A (enExample) |
| DE (1) | DE2117685C3 (enExample) |
| FR (1) | FR2134859A5 (enExample) |
| GB (1) | GB1301071A (enExample) |
| NL (1) | NL155906B (enExample) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3891036A (en) * | 1973-08-11 | 1975-06-24 | Tracto Technik | Control arrangement for the forward and backward movement of percussive boring rams |
| US3948058A (en) * | 1974-10-16 | 1976-04-06 | Evgeny Ivanovich Tanov | Device for soil sampling under water |
| US4121672A (en) * | 1977-06-23 | 1978-10-24 | Khaim Berkovich Tkach | Reversing pneumatic percussive device |
| US4159040A (en) * | 1976-10-27 | 1979-06-26 | Institut Gornogo Dela Sibirskogo Oidelenia Akademii Nauk SSSR | Pneumatic percussion tool |
| US4214638A (en) * | 1978-02-16 | 1980-07-29 | Kamensky Veniamin V | Method of controlling the reversing of a device for driving holes in earth and device for performing same |
| US4596292A (en) * | 1985-04-18 | 1986-06-24 | The Stanley Works | Subsoil penetrating apparatus |
| US4609052A (en) * | 1984-11-29 | 1986-09-02 | Lewin Stephen S | Pneumatically operated burrowing tool |
| US4637476A (en) * | 1985-04-09 | 1987-01-20 | Institut Gornogo Dela Sibirskogo Otdelenia Akademii Nauk Sssr | Percussive action machine for making holes in the ground |
| US4662457A (en) * | 1984-10-19 | 1987-05-05 | Allied Steel & Tractor Products, Inc. | Reversible underground piercing device |
| US4872516A (en) * | 1985-11-27 | 1989-10-10 | Oklahoma Airrow, Inc. | Air driven impact operated ground piercing tool |
| US5117922A (en) * | 1990-06-20 | 1992-06-02 | Allied Steel & Tractor Products, Inc. | Isolator assembly for a pneumatic underground piercing tool |
| US5540294A (en) * | 1995-02-14 | 1996-07-30 | Anderberg Construction Company | Vertical percussion ground boring tool apparatus and method |
| US6997269B1 (en) | 2003-03-26 | 2006-02-14 | Snap-On Incorporated | Attachment for impact hammer |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT360432B (de) * | 1977-03-28 | 1980-01-12 | Inst Gornogo Dela Sibirskogo O | Druckluft-schlagbohrgeraet zum herstellen von bohrloechern durch verdraengen des erdreiches |
| DE2756567B2 (de) * | 1977-12-19 | 1980-01-03 | Gustav Dr.-Ing. 4300 Essen Jenne | Steuervorrichtung für den Vor- und Rücklauf von selbstgetriebenen pneumatischen Rammbohrgeräten |
| GB2134152B (en) * | 1983-01-22 | 1986-05-08 | Kayes Engineering Limited | Improvements in and relating to impact-action self-propelled mechanism for driving holes in the earth |
| GB8801042D0 (en) * | 1988-01-18 | 1988-02-17 | British Telecomm | Boring ram |
| DE4311263A1 (de) * | 1993-04-06 | 1994-10-13 | Bosch Gmbh Robert | Dämpfungseinrichtung insbesondere für ein hydraulisches Bremssystem |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3137483A (en) * | 1958-01-24 | 1964-06-16 | Zinkiewicz Wiktor | Ground burrowing device |
| US3407884A (en) * | 1962-11-23 | 1968-10-29 | Zygmunt Kazimierz | Two-way ground burrowing device |
| US3410354A (en) * | 1966-09-16 | 1968-11-12 | Boris Vasilievich Sudnishnikov | Impact device for driving horizontal holes in soft ground |
| US3465834A (en) * | 1968-03-18 | 1969-09-09 | Bell Telephone Labor Inc | Guided subterranean penetrator systems |
| US3642076A (en) * | 1970-07-17 | 1972-02-15 | Bell Telephone Labor Inc | Impulse-reaction propulsion cycle for mole |
-
1971
- 1971-04-05 US US131136A patent/US3705633A/en not_active Expired - Lifetime
- 1971-04-10 DE DE2117685A patent/DE2117685C3/de not_active Expired
- 1971-04-13 NL NL7104853.A patent/NL155906B/xx not_active IP Right Cessation
- 1971-04-21 GB GB00377/71A patent/GB1301071A/en not_active Expired
- 1971-04-22 FR FR7114379A patent/FR2134859A5/fr not_active Expired
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3137483A (en) * | 1958-01-24 | 1964-06-16 | Zinkiewicz Wiktor | Ground burrowing device |
| US3407884A (en) * | 1962-11-23 | 1968-10-29 | Zygmunt Kazimierz | Two-way ground burrowing device |
| US3410354A (en) * | 1966-09-16 | 1968-11-12 | Boris Vasilievich Sudnishnikov | Impact device for driving horizontal holes in soft ground |
| US3465834A (en) * | 1968-03-18 | 1969-09-09 | Bell Telephone Labor Inc | Guided subterranean penetrator systems |
| US3642076A (en) * | 1970-07-17 | 1972-02-15 | Bell Telephone Labor Inc | Impulse-reaction propulsion cycle for mole |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3891036A (en) * | 1973-08-11 | 1975-06-24 | Tracto Technik | Control arrangement for the forward and backward movement of percussive boring rams |
| US3948058A (en) * | 1974-10-16 | 1976-04-06 | Evgeny Ivanovich Tanov | Device for soil sampling under water |
| US4159040A (en) * | 1976-10-27 | 1979-06-26 | Institut Gornogo Dela Sibirskogo Oidelenia Akademii Nauk SSSR | Pneumatic percussion tool |
| US4121672A (en) * | 1977-06-23 | 1978-10-24 | Khaim Berkovich Tkach | Reversing pneumatic percussive device |
| US4214638A (en) * | 1978-02-16 | 1980-07-29 | Kamensky Veniamin V | Method of controlling the reversing of a device for driving holes in earth and device for performing same |
| US4662457A (en) * | 1984-10-19 | 1987-05-05 | Allied Steel & Tractor Products, Inc. | Reversible underground piercing device |
| US4609052A (en) * | 1984-11-29 | 1986-09-02 | Lewin Stephen S | Pneumatically operated burrowing tool |
| US4637476A (en) * | 1985-04-09 | 1987-01-20 | Institut Gornogo Dela Sibirskogo Otdelenia Akademii Nauk Sssr | Percussive action machine for making holes in the ground |
| US4596292A (en) * | 1985-04-18 | 1986-06-24 | The Stanley Works | Subsoil penetrating apparatus |
| US4872516A (en) * | 1985-11-27 | 1989-10-10 | Oklahoma Airrow, Inc. | Air driven impact operated ground piercing tool |
| US5117922A (en) * | 1990-06-20 | 1992-06-02 | Allied Steel & Tractor Products, Inc. | Isolator assembly for a pneumatic underground piercing tool |
| US5540294A (en) * | 1995-02-14 | 1996-07-30 | Anderberg Construction Company | Vertical percussion ground boring tool apparatus and method |
| US6997269B1 (en) | 2003-03-26 | 2006-02-14 | Snap-On Incorporated | Attachment for impact hammer |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2117685A1 (de) | 1972-10-26 |
| DE2117685B2 (de) | 1973-03-15 |
| NL7104853A (enExample) | 1972-10-17 |
| NL155906B (nl) | 1978-02-15 |
| DE2117685C3 (de) | 1973-10-11 |
| FR2134859A5 (enExample) | 1972-12-08 |
| GB1301071A (en) | 1972-12-29 |
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