US3744576A - Reversible percussion device - Google Patents

Reversible percussion device Download PDF

Info

Publication number
US3744576A
US3744576A US00112350A US3744576DA US3744576A US 3744576 A US3744576 A US 3744576A US 00112350 A US00112350 A US 00112350A US 3744576D A US3744576D A US 3744576DA US 3744576 A US3744576 A US 3744576A
Authority
US
United States
Prior art keywords
bushing
striker
compressed air
slide valve
housing
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
Application number
US00112350A
Other languages
English (en)
Inventor
B Sudnishnikov
A Kostylev
K Gurkov
K Tupitsyn
V 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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3744576A publication Critical patent/US3744576A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
    • E02D3/054—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil involving penetration of the soil, e.g. vibroflotation
    • 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 device is characterized in that under the action of compressed air the striker reciprocates in a hollow housing and delivers percussions upon the latter, thereby making the device move in to the ground.
  • the compressed air is supplied into working chambers of the housing along an air-supplying bushing having ports provided on its portion interacting with the striker, overlapped by a slide valve during the forward movement of the device and used to outstrip the supply of compressed air into a front chamber during the reverse movement of the device.
  • the slide valve is rigidly connected with a spring-loaded sleeve that is loosely mounted on the bushing and is actuated by a spring when the device is switched over to a reverse movement by way of dropping the pressure, as compared to the nominal one.
  • the present invention relates to pneumatic reversible percussion devices for making holes in the ground by way of compacting the latter, and can be used, for example, for constructing underground communications by the closed'trench-less method.
  • pneumatic reversible percussion devices having a housing pointed at its one side and accommodating a striker forming two chambers, a front and a rear one, of a variable volume.
  • the front chamber disposed between the housing and the outer surface of the striker alternately communicates with a source of compressed air and with the atmosphere.
  • the rear chamber disposed inside the striker in the tail portion thereof constantly communicates with a source of compressed air.
  • An air-supplying bushing is fixed in the tail portion of the housing by means of a nut so that it can move in the axial direction with respect to the latter. From the rear chamber the compressed air is supplied into the front one through ports made in the tail portion of the striker in the course of interaction of the latter with the airsupplying bushing.
  • the striker While reciprocating under the action of the com pressed air, the striker imparts percussions to the housing, which displaces the latter in the ground in the forward and reverse directions depending on the direction of the percussions.
  • the device is reversed by way of rotating a hose communicating with the airsupplying bushing and displacing the latter relative to the nut, which results in a change in the rate of supply of the compressed air into the chambers and, consequently, in a change in the direction of the percussions delivered by the striker upon the housing of the device.
  • the main object of the present invention is to provide a reversible percussion device whose movement would -be reversed by varying the working pressure of the compressed air.
  • this object is accomplished in that the air-supplying bushing is rigidly fixed in the tail portion of the housing and its portion interacting with the striker is provided with ports overlapped by a slide valve disposed inside the bushing and rigidly connected with a spring-loaded sleeve made movable along the air'supplying bushing.
  • FIG. 1 shows a side view with a partial longitudinal section of a reversible percussion device for making holes in ground, according to the invention
  • FIG. 2 is a section taken along line II-II in FIG. I.
  • the device comprises a hollow cylindrical housing 1 (FIG. 1) pointed in its front portion and accommodating striker 2 resting upon the inner surface of a bushing 7 with two belts 3 and 4.
  • the space confined by the inner surface of the housing 1 and the outer surface of the striker 2 forms a front working chamber 5 of a variable volume, and the inner tail portion of the striker 2 has a space forming a rear working chamber 6.
  • the chamber 6 accommodates the front portion of the air-supplying bushing 7 interacting with the striker 2, stationary fixed by a flange 8 in the tail portion of the housing 1 and connected with a hose coming from a compressor.
  • the walls of the tail portion of the striker 2 are provided with ports 9 which, depending on the position of the striker 2, periodically communicate the from work ing chamber 5 either with the rear working chamber 6 that is under constant pressure, or with the atmosphere.
  • the walls of the front portion of the air-supplying bushing 7, interacting with the striker 2, are provided with ports 10 used for supplying compressed air into the front chamber 5 during the reverse movement of the device.
  • a hollow slide valve 11 mounted inside the front portion of the bushing 7 is a hollow slide valve 11 overlapping the ports 10 during the forward movement of the device.
  • sleeve 12 (FIGS. 1 and 2) having ports 13, made movable in the axial direction and rigidly connected with the slide valve 11 by means of pins 14 passed through the face wall of the bushing 7.
  • a spring 15 installed between the flange 8 of the bushing 7 and the sleeve 12 is a spring 15 used to displace the slide valve 11 and the sleeve 12 during the reversing of the device.
  • the sizes and arrangements of the ports 9 and 10 are chosen so as to provide for a constant value of their passage sections irrespective of the position of the striker.
  • the device functions as follows:
  • the slide valve 11 and the sleeve 12, preferably connected to the former by means of the pins 14, are moved under the action of the compressed air supplied into the rear working chamber 6 along the air-supplying bushing 7 to the extreme position, as shown, whereby the ports 10 of the bushing 7 are overlapped by the slide valve ll, and the spring 15 is compressed.
  • the striker 2 is moved to the left and delivers percussions upon the inner wall of the front portion of the housing 1,. as a result of which the whole device will move in the ground in the direction of the percussion, i.e., forward (in the drawing to the left).
  • the ports 9 in its tail portion connect the front working chamber 5 with atmosphere, and, as the striker 2 moves and interacts with the bushing 7 at a predetermined distance from the extreme front position thereof, the ports 9 connect the front chamber 5 with the rear chamber 6, and, consequently, with the source of compressed air. Due to the jumping of the striker 2 from the front wall of the housing 1 and under the action of the pressure of the compressed air delivered into the front chamber 5, the striker 2 starts moving in the reverse direction (to the right) since its working area at the side of the chamber 5 is greater than that at the side of the chamber 6.
  • the reverse movement of the device takes place when the pressure of the compressed air is lower than the nominal one.
  • the rigidity of the spring 15 is chosen in dependence on the value of the working pressure of the air of the reverse movement.
  • the pressure of the air is to be dropped, whereby under the action of the spring 15 the sleeve 12 and the slide valve 11 connected therewith will move to the extreme left position shown in FIG. 1.
  • the ports in the bushing 7 are opened, the sleeve 12 is pressed against the face wall of the bushing 7, and the exhaust ports 13 of the sleeve 12 are closed.
  • the supply of the air into the front chamber 5 will be controlled by the edges of the air-supplying bushing 7, and the striker 2 will deliver percussions upon the front portion of the housing, e.i. the forward movement cycle of the device will take place again.
  • a reversible percussion device for making holes in the ground by compaction, comprising a housing pointed at one end and defining an inner space; a striker accommodated in said space and forming therewith front and rear variable-volume working chambers which periodically communicate with each other, said striker imparting impacts to said housing as it reciprocates therein under the effect of compressed air supplied to said chambers; an air-supplying stepped bushing having a partition between the steps thereof and interacting by one of its ends with said striker, while the other end of said bushing is secured in a portion of said housing opposite to said pointed end, said one end of the bushing, which interacts with said striker, having ports therein for the supply of the compressed air into said front chamber; a slide valve located inside said bushing for moving along the axis thereof to close said ports in one of its end positions; and a spring-biased sleeve for moving along said bushing and rigidly coupled with said slide valve.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Soil Sciences (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Agronomy & Crop Science (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)
  • Fluid-Damping Devices (AREA)
US00112350A 1971-02-03 1971-02-03 Reversible percussion device Expired - Lifetime US3744576A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11235071A 1971-02-03 1971-02-03

Publications (1)

Publication Number Publication Date
US3744576A true US3744576A (en) 1973-07-10

Family

ID=22343430

Family Applications (1)

Application Number Title Priority Date Filing Date
US00112350A Expired - Lifetime US3744576A (en) 1971-02-03 1971-02-03 Reversible percussion device

Country Status (5)

Country Link
US (1) US3744576A (enrdf_load_stackoverflow)
AU (1) AU436908B2 (enrdf_load_stackoverflow)
FR (1) FR2125697A5 (enrdf_load_stackoverflow)
GB (1) GB1305004A (enrdf_load_stackoverflow)
NL (1) NL165812C (enrdf_load_stackoverflow)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3848681A (en) * 1972-03-10 1974-11-19 B Voitsekhovsky Immersion hydropercussive device
US3907099A (en) * 1974-03-13 1975-09-23 Arthur J Smith Feeder for headed objects
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
US4250972A (en) * 1978-05-12 1981-02-17 Paul Schmidt Pneumatic ram boring device
US4537265A (en) * 1981-12-15 1985-08-27 British Telecommunications Self propelled reversible boring ram
US4629008A (en) * 1983-06-08 1986-12-16 Institut Gornogo Dela Sibirskogo Otdelenia Akademii Nauk Sssr Reversible percussive action machine
US4683960A (en) * 1984-10-03 1987-08-04 Kostylev Alexandr D Air-operated reversible percussive action machine
US4701077A (en) * 1985-06-03 1987-10-20 Ihc Holland N.V. Apparatus for withdrawing a tube or pile which has been driven into the soil
US4872516A (en) * 1985-11-27 1989-10-10 Oklahoma Airrow, Inc. Air driven impact operated ground piercing tool
US5031706A (en) * 1990-02-07 1991-07-16 Mbs Advanced Engineering Systems Pneumopercussive soil penetrating machine
US5172771A (en) * 1990-11-06 1992-12-22 Charles Machine Works, Inc. Reversible impact-operated boring tool
US5226487A (en) * 1990-02-07 1993-07-13 Mbs Advanced Engineering Systems Pneumopercussive machine
US5311950A (en) * 1993-04-19 1994-05-17 Spektor Michael B Differential pneumopercussive reversible self-propelled soil penetrating machine
US5467831A (en) * 1994-08-22 1995-11-21 Spektor; Michael B. Monotube differential pneumopercussive reversible self-propelled soil penetrating machine with stabilizers
US5540294A (en) * 1995-02-14 1996-07-30 Anderberg Construction Company Vertical percussion ground boring tool apparatus and method
EP0789129A3 (de) * 1995-08-23 1999-07-14 Tracto-Technik Paul Schmidt Spezialmaschinen Selbstgetriebenes Rammbohrgerät
US6176324B1 (en) * 1996-11-18 2001-01-23 Etablissements Montabert Drilling device
US6467554B1 (en) 2001-08-20 2002-10-22 The Charles Machine Works, Inc. Quick reverse mechanism for pneumatic boring tool
US20060207794A1 (en) * 2005-03-16 2006-09-21 Spektor Engineering Inc. Reversible penetrating machine with a springless pneumatically loaded differential air distributing mechanism

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112681288A (zh) * 2020-12-29 2021-04-20 江阴振博机械有限公司 复杂地基用超大深度长寿命振冲器

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3848681A (en) * 1972-03-10 1974-11-19 B Voitsekhovsky Immersion hydropercussive device
US3907099A (en) * 1974-03-13 1975-09-23 Arthur J Smith Feeder for headed objects
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
US4250972A (en) * 1978-05-12 1981-02-17 Paul Schmidt Pneumatic ram boring device
US4537265A (en) * 1981-12-15 1985-08-27 British Telecommunications Self propelled reversible boring ram
US4629008A (en) * 1983-06-08 1986-12-16 Institut Gornogo Dela Sibirskogo Otdelenia Akademii Nauk Sssr Reversible percussive action machine
US4683960A (en) * 1984-10-03 1987-08-04 Kostylev Alexandr D Air-operated reversible percussive action machine
US4701077A (en) * 1985-06-03 1987-10-20 Ihc Holland N.V. Apparatus for withdrawing a tube or pile which has been driven into the soil
US4872516A (en) * 1985-11-27 1989-10-10 Oklahoma Airrow, Inc. Air driven impact operated ground piercing tool
US5031706A (en) * 1990-02-07 1991-07-16 Mbs Advanced Engineering Systems Pneumopercussive soil penetrating machine
US5226487A (en) * 1990-02-07 1993-07-13 Mbs Advanced Engineering Systems Pneumopercussive machine
US5172771A (en) * 1990-11-06 1992-12-22 Charles Machine Works, Inc. Reversible impact-operated boring tool
US5327636A (en) * 1990-11-06 1994-07-12 The Charles Machine Works, Inc. Reversible impact-operated boring tool
US5311950A (en) * 1993-04-19 1994-05-17 Spektor Michael B Differential pneumopercussive reversible self-propelled soil penetrating machine
US5467831A (en) * 1994-08-22 1995-11-21 Spektor; Michael B. Monotube differential pneumopercussive reversible self-propelled soil penetrating machine with stabilizers
US5540294A (en) * 1995-02-14 1996-07-30 Anderberg Construction Company Vertical percussion ground boring tool apparatus and method
EP0789129A3 (de) * 1995-08-23 1999-07-14 Tracto-Technik Paul Schmidt Spezialmaschinen Selbstgetriebenes Rammbohrgerät
US6176324B1 (en) * 1996-11-18 2001-01-23 Etablissements Montabert Drilling device
US6467554B1 (en) 2001-08-20 2002-10-22 The Charles Machine Works, Inc. Quick reverse mechanism for pneumatic boring tool
US6644417B1 (en) 2001-08-20 2003-11-11 The Charles Machine Works, Inc. Quick reverse mechanism for pneumatic boring tool
US20060207794A1 (en) * 2005-03-16 2006-09-21 Spektor Engineering Inc. Reversible penetrating machine with a springless pneumatically loaded differential air distributing mechanism
US7273113B2 (en) 2005-03-16 2007-09-25 Spektor Michael B Reversible penetrating machine with a differential air distributing mechanism

Also Published As

Publication number Publication date
FR2125697A5 (enrdf_load_stackoverflow) 1972-09-29
DE2105257A1 (de) 1972-09-07
GB1305004A (enrdf_load_stackoverflow) 1973-01-31
NL165812B (nl) 1980-12-15
NL165812C (nl) 1981-05-15
NL7101729A (enrdf_load_stackoverflow) 1972-08-14
DE2105257B2 (de) 1977-04-28
AU436908B2 (en) 1973-06-15
AU2531971A (en) 1972-08-17

Similar Documents

Publication Publication Date Title
US3744576A (en) Reversible percussion device
US3490549A (en) Hydraulic percussive drill
US3727701A (en) Reversible air-punching mechanism for making holes in soil by compaction
US3705633A (en) Reversible percussion device for making holes in ground by compacting the latter
US3866690A (en) Hydraulically powered impact device
US2859733A (en) Fluid actuated impact tool
US4683960A (en) Air-operated reversible percussive action machine
US4062411A (en) Hydraulic percussion tool with impact blow and frequency control
US3670826A (en) Control system for drills
US3410354A (en) Impact device for driving horizontal holes in soft ground
US3060894A (en) Rock drill
US3944003A (en) Bore hole air hammer
US3620312A (en) Rock drill
US4821812A (en) Down hole drill improvement
US3735820A (en) Bore hole air hammer
US4121672A (en) Reversing pneumatic percussive device
US4214638A (en) Method of controlling the reversing of a device for driving holes in earth and device for performing same
US3763939A (en) Reversible impact device for driving holes in earth
US3225841A (en) Drilling apparatus
US4637476A (en) Percussive action machine for making holes in the ground
EP0843071A1 (en) Down the hole drill
US3105559A (en) Percussion tool
GB1437420A (en) Method and apparatus for drilling in an earth formation
US20250101807A1 (en) Hydraulic impact mechanism for use in equipment for processing rock and concrete
US4819542A (en) Percussive tool