EP1606487B1 - Mit pressluft betriebene bohrmaschine mit unabhängigem rotation des bohrwerkzeuges - Google Patents

Mit pressluft betriebene bohrmaschine mit unabhängigem rotation des bohrwerkzeuges Download PDF

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Publication number
EP1606487B1
EP1606487B1 EP03815272A EP03815272A EP1606487B1 EP 1606487 B1 EP1606487 B1 EP 1606487B1 EP 03815272 A EP03815272 A EP 03815272A EP 03815272 A EP03815272 A EP 03815272A EP 1606487 B1 EP1606487 B1 EP 1606487B1
Authority
EP
European Patent Office
Prior art keywords
bushing
perforator
piston
pneumatic
collar
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
EP03815272A
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English (en)
French (fr)
Other versions
EP1606487A2 (de
Inventor
Paul Mateescu
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.)
Sc Ramira Sa
Original Assignee
Sc Ramira Sa
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 Sc Ramira Sa filed Critical Sc Ramira Sa
Publication of EP1606487A2 publication Critical patent/EP1606487A2/de
Application granted granted Critical
Publication of EP1606487B1 publication Critical patent/EP1606487B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/06—Means for driving the impulse member
    • B25D9/08—Means for driving the impulse member comprising a built-in air compressor, i.e. the tool being driven by air pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/16—Valve arrangements therefor
    • B25D9/20—Valve arrangements therefor involving a tubular-type slide valve

Definitions

  • the invention is referring to a pneumatic perforator with independent rotation of the drill, meant for rock perforation in the mining activity.
  • a disadvantage of all mentioned distribution systems is that in the final part of the active course in front of the piston is generated an air bag (the counter-pressure) which value is attempting to equal the value of the air pressure compressed in the network before the moment of percussion.
  • the counter-pressure is having a negative effect of damping of the piston blow decreasing in this way the perforation speed.
  • a perforator for rock mining with simultaneously rotation and percussion with the distribution realized by the tail of the piston is known for example from the US4429752A .
  • the problem solved by invention is to realize a pneumatic perforator with independent rotation of the drill, having a small specific consumption of compressed air, increased perforation speed, simplified construction with an easier maintenance in exploitation.
  • the perforator eliminate disadvantages of the known solutions and solve the problem raised by the box distribution system through the piston described by that the extremity of the pistons tail, in the back, is on tubular shape with equidistant holes (foreseen in a transversal section) which during the active course are blocked and during the retiring course of the piston are let free by a floating bushing disposed in the respective area; distinguished from the classical constructions as follows in the moment of percussion the circular duct from the valve box ream which is ensuring the compressed air admission for the retiring course of the piston is only partial open by the back extremity of the pistons tail;
  • the counter- pressure in front of the piston by not having an important value, the damping of the blow is less important than at the classical constructions, so the blowing energy of the piston increase, implicit increasing the effect of the percussion, only after the percussion moment when the floating bushing is opening the holes from the pistons tail, is starling the massive alimentation with compressed air for realization of the retiring course of the piston; alimentation with compressed air
  • the motor of independent rotation machinery of the drill may be positioned at the front extremity of the perforator, being a pneumatic motor with gears located under the driving bushing of the drill and in parallel with this one, the attach pinion of the steering gear of the motor, oriented to the back side of the perforator, constituting the entrance in the 2 nd steps reducer, in the first step the attach pinion is gearing with a internal teeth gear located on the same spindle with the attach pinion of the second step of reducer (their axle being located in the axial vertical plan of the perforator); the second steps pinion is driving the out-going reducers gear, coupled with liner driving bushing which is rotating the plug or the drill.
  • the pneumatic motor equipped with gears may be located above the liner driving bushing of the drill and parallel to this one, construction of the independent rotation machinery being identical with the one from the first option proposed for realization of the invention, practical the rotation machinery is positioned rotated with 180° around the axle of driving bushing of the plug or the drill.
  • the pneumatic perforator with independent rotation of the drill, as per the invention, in a first option of realization is equipped with a back-cover A in conformity with the figure 1 , to which is conducted the compressed air through a orifice a; in the back -cover A is fixed the water tube 1 through which is circulating water for washing the perfored hole; in front of the back -cover A is located the repartition valve box B, known itself, having the distribution valve box 2 foreseen with an axial ream; from the back through some ducts b is realized the compressed air feeding in a circular duct c disposed to the front in the distribution box ream 2; the axial ream of the distribution box 2 is communicating to the exterior by the centering portion from the front of the distribution box 2 through ducts d; in the ream of the distribution box 2 is pressed the distribution bushing 3 foresee with a collar on the back; in the bushing ream 3 there is a circular duct oriented to the front, communicating by
  • the pneumatic rotating motor E as per the figure 2 is equipped with two gears with the axis parallel to collar bushing spindle 20 , the driving gear 30 of the motor E having the out going, axis notched, oriented to the back of the perforator, to the reducer D, the notched axis of the gear 30 gearing to the interior with the gear equipped with internal teeth 24 (first step of the reducer D ); gears bearing of the motor D is made by rolling bearings for their lubrication is used ball lubricator device 31 . Fastening of the elements A,B, 5, 10 , 26, 28, 19 is made in conformity with figure 3 , with two tightening lifting rods 32 and some nuts 33.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Claims (3)

  1. Pneumatischer Durchbohrer mit unabhängiger Drehung des Bohrers zum Durchbohren des Gesteines in der Bergbauindustrie, enthaltend eine Hinterabdeckung (A), einen Verteilungskasten (B), eine Aufschlagmaschine (C) die mit einem Zylinder (5) vorgesehen ist, ein Untersetzungsgetriebe (D) für die Drehmaschinenanlagen, ein pneumatisches Motor (E), und Buchse enthaltend entreibende Backen (16), die das Auslaufventil des Durchbohrers drehen, wo ein Wasserrohr (1) an die Hinterabdeckung (A) befestigt wird, für das umlaufende Wasser um das durchbohrte Loch zu waschen, an der Vorderseite der Hinterabdeckung (A) wo sich der Verteilungskasten (B) befindet, zentriert an der Hinterseite des Zylinders (5) der Aufschlagmaschine (C), das Untersetzungsgetriebe (D) befindet sich an der Vorderseite der Aufschlagmaschine (C) und der pneumatische Motor (E) befindet sich an der Vorderseite des Untersetzungsgetriebe (D), wo der Zylinder (5) mit einem Kolben (6) vorgesehen ist, auf wessen Schaft eine Buchse (7) die mit einem axialen Ausbohrer vorgesehen ist zentriert wird, der an der Hinterseite mit einem Innenkragen (p) endet, Kragen der sich in der Hinterseite des konischen Loches (o) befindet, der geichweit entfert gestellt wird in einem querlaufenden Absatz der Buchse (7), in der Innenseite der Buchse (7) gibt es eine fließende Buchse (8) vorgesehen mit einem Ausbohren der in der Hinterseite mit einem Innenkragen (p) endet und wo, im Benutz, die fließende Buchse (8) öffnet oder schließt die konische Locher (o) auf der Innenseite, wo der kleine Arbeitsweg der fließenden Buchse (8) von dem Kragen (p) der Buchse (7) an der Hinterseite und von der Vorderseite des Bereiches (n) des Kolbenschaft (6) an der Vorderseite begrenzt wird, die fließende Buchse (8) wird an den Endanschlag behalten in Kontakt mit dem Kragen (p) wenn der Durchbohrer von einer sehr schwach Druckfeder (9) gestoppt ist.
  2. Pneumatischer Durchbohrer nach Anspruch 1, wo der pneumatische Motor mit Zahnradgetriebe (E) unter den Buchse enthaltend antreibende Backen (16) und parallel mit diesen gestellt wird.
  3. Pneumatischer Durchbohrer nach Anspruch 1, wo der pneumatische Motor mit Zahnradgetriebe (E) über den Buchse enthaltend antreibende Backen (16) und parallel mit diesen gestellt wird.
EP03815272A 2003-02-11 2003-12-11 Mit pressluft betriebene bohrmaschine mit unabhängigem rotation des bohrwerkzeuges Expired - Lifetime EP1606487B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
RO200300101 2003-02-11
ROA200300101A RO121439B1 (ro) 2003-02-11 2003-02-11 Perforator pneumatic, cu rotire independentă a sfredelului
PCT/RO2003/000016 WO2004072430A2 (en) 2003-02-11 2003-12-11 Pneumatic perforator with independent rotation of the drill

Publications (2)

Publication Number Publication Date
EP1606487A2 EP1606487A2 (de) 2005-12-21
EP1606487B1 true EP1606487B1 (de) 2009-08-26

Family

ID=32867201

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03815272A Expired - Lifetime EP1606487B1 (de) 2003-02-11 2003-12-11 Mit pressluft betriebene bohrmaschine mit unabhängigem rotation des bohrwerkzeuges

Country Status (6)

Country Link
EP (1) EP1606487B1 (de)
AT (1) ATE441018T1 (de)
AU (1) AU2003303294A1 (de)
DE (1) DE60329032D1 (de)
RO (1) RO121439B1 (de)
WO (1) WO2004072430A2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2242894B1 (de) * 2008-01-07 2014-07-23 Suk Shin In Vibrationshammer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2678636A (en) * 1953-07-14 1954-05-18 Thor Power Tool Co Air hammer with selective drill steel rotation
DE1057037B (de) * 1955-03-05 1959-05-14 Herbert Jeschke Dr Ing Pressluftbetriebene Gesteinsschlagbohrmaschine mit zwei koaxial hintereinander angeordneten Zylindern
US4429752A (en) * 1980-01-09 1984-02-07 Joy Manufacturing Company Pneumatic motor for rock drills and the like

Also Published As

Publication number Publication date
AU2003303294A1 (en) 2004-09-06
RO121439B1 (ro) 2007-05-30
AU2003303294A8 (en) 2004-09-06
ATE441018T1 (de) 2009-09-15
EP1606487A2 (de) 2005-12-21
WO2004072430A3 (en) 2004-11-11
DE60329032D1 (de) 2009-10-08
WO2004072430A2 (en) 2004-08-26

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