EP1606487A2 - Mit pressluft betriebene bohrmaschine mit unabhängigem rotation des bohrwerkzeuges - Google Patents

Mit pressluft betriebene bohrmaschine mit unabhängigem rotation des bohrwerkzeuges

Info

Publication number
EP1606487A2
EP1606487A2 EP03815272A EP03815272A EP1606487A2 EP 1606487 A2 EP1606487 A2 EP 1606487A2 EP 03815272 A EP03815272 A EP 03815272A EP 03815272 A EP03815272 A EP 03815272A EP 1606487 A2 EP1606487 A2 EP 1606487A2
Authority
EP
European Patent Office
Prior art keywords
bushing
collar
gear
cover
foreseen
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
EP03815272A
Other languages
English (en)
French (fr)
Other versions
EP1606487B1 (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

Links

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 (he 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 (his way the perforation speed.
  • the motor of independent rotation machinery of the drill is 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.
  • An other constructive option of the invention in connection with the first one and different from this one is having the pneumatic motor equipped with gears located upper 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 ⁇ , 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 il; 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
  • the gear is fixed on the shaft 23 by a peen 25; pieces 14, 22, 23, 24 arc placed in the reducers case 26 positioned in the centering area r of the cover 10 and closed by an inferior cover 27 milled plan in the area of contact with the surface s of the cover 10; the inferior cover 27 is fixed also on the cover 10 by pegs and screws (not drawn);in front side of reducer 26, under the driving bushing 16 and parallel to this one is placed the pneumatic motor with gears E through which case 28 in upper side is passing to (he collar bushing 20 this one having the role of centering and positioning between the cases 26 and 28; in the case 28 is foreseen a vertical transversal duct x (in vertical axial section 28 the duct x is intersecting with a circular duct y foreseen in the ream through which is passing the collar bushing 20 in the case 28 there are ducts z through which a part of the compressed air loaded with oil, after working in the pneumatic motor E is drive to external channels from the tubular
  • 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 lightening lifting rods 32 and some nuls33. The elements 26, 28, 29 are tightened by the bolts 34 and nuts 35.
  • the compressed air is bring inside the back cover A; considering the piston 6 pull back at the beginning of the a ⁇ tive course, the collar 1 of the back side of the piston 6 is positioned between the ducts c and f of the bushing 3; The holes o from the bushing 7 are locked by the floating bushing 8 being in contact with collar p; the compressed air penetrating in ducts b, c, e and near by the back side of the piston 6 through the space between the body of distribution valve box 2 and piston 6 impel this one in the active course; as per the construction, the compressed air feeding in the space between body 2 and piston 6 on the line b, c, e, is during a longer period of time and bigger space than at the classical constructions (the neck of the pistons tail 6 being longer), taking into consideration the same course of the piston; after the frontal edge of the tails collar 1 is passing near by the duct e, compressed air feeding in the space between the body 2 and piston 6 is breaking off, in this space is having place
  • An other e ent option of this invention in connection with the first one but different of this one is equipment with the pneumatic motor E located upper the driving bushing 16 and parallel to this one, independent rolalion gear construction (assembly D and E) being identical to the same fiom the first constructive option of the invention, piaclical the rotation machineiy being rotated with 180° around the axle of driving hushing 16.

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)
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 true EP1606487A2 (de) 2005-12-21
EP1606487B1 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004072430A3 *

Also Published As

Publication number Publication date
EP1606487B1 (de) 2009-08-26
AU2003303294A1 (en) 2004-09-06
RO121439B1 (ro) 2007-05-30
AU2003303294A8 (en) 2004-09-06
ATE441018T1 (de) 2009-09-15
WO2004072430A3 (en) 2004-11-11
DE60329032D1 (de) 2009-10-08
WO2004072430A2 (en) 2004-08-26

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