US1868294A - Feeding device for rock drills - Google Patents

Feeding device for rock drills Download PDF

Info

Publication number
US1868294A
US1868294A US423066A US42306630A US1868294A US 1868294 A US1868294 A US 1868294A US 423066 A US423066 A US 423066A US 42306630 A US42306630 A US 42306630A US 1868294 A US1868294 A US 1868294A
Authority
US
United States
Prior art keywords
rod
link
rock drill
shell
piston
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
US423066A
Other languages
English (en)
Inventor
Sr William A Smith
Jr William A Smith
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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
Priority to BE374383D priority Critical patent/BE374383A/xx
Application filed by Ingersoll Rand Co filed Critical Ingersoll Rand Co
Priority to US423066A priority patent/US1868294A/en
Priority to FR704669D priority patent/FR704669A/fr
Priority to DE1930568527D priority patent/DE568527C/de
Application granted granted Critical
Publication of US1868294A publication Critical patent/US1868294A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/02—Automatic control of the tool feed
    • E21B44/08—Automatic control of the tool feed in response to the amplitude of the movement of the percussion tool, e.g. jump or recoil
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder

Definitions

  • This invention relates to feeding devices, but more particularly ,to a device of this character adapted for actuating a rock drill rela- ⁇ tively .to its support, such-as a shell whereon rock drills of the drifter type are usually mounted to enable vthem to be readily advanced towards the work inaccordance with the penetration-of the. drill steel into the material being drilled.
  • One object of the invention is to enable the rock drill tobe moved longitudinally of its supporting shell by the force of the hammer piston uponreversal of said hammer piston at the end of one of its strokes and at the same time to prevent recoil of the rock drill at the insta-nt of such reversal.
  • Another object is to enable the rock drill to be readily actuated longitudinally of the sh-ell either in the direction of the work or in a reverse direction, and still another lobject is to enable the feeding device to be automatically reversed.
  • Figure 1 isa longitudinalplan view, partly brolren away, of a .rock drill and its supporting shellV having the invention. applied obvious and thereto,
  • FIG. 2 is a side elevation, partly in section, showing an enlarged view of the feeding device, the said feeding device being adjusted to the position for feeding the rock drill towards the work, and
  • Figure 3 is an end elevation ⁇ of Figure 2 and partly in section illustrating the man' ner in which the movable elements ofthe feeding/device may be locked in vplaced position.
  • A designates a rock drill which may be of the Vdrifter type, and B a supporting shell for the rock drill A; Y'
  • the shell B has ltheV usual guideways C to slidably receive ribs carri-ed by the cylinder E Vof the rock drill ,The rock drin Aim, the ugual from and back heads F and G which may be suitably Vingto move it bodilyrin the direction Vwhich the piston is traveling.
  • the front head F acts as a guide for a .working implement, such as a drill steel J, and within the cylinder is a reciprocatory hammer piston-K -to deliver'blows of impact against the working implementJ 'for vdriving it into the work. f
  • the pressure Huid utilized' for actuating the piston K may be distributed to the ends of the cylinder E by any suitable form of disf tributing valve (not shown) and communication ⁇ between .
  • the distributing 'valve and the source of pressure fluid supply may be controlled by a suitable throttlevalve, only the manipulating lever L of which is shown.
  • means are providedA for enabling the rock drill A to be moved longitudinally of the shell B by the jar resulting Aupon reversal of the hammer piston K at the ends ofitsstroke.
  • the rock drill is accordingly provided with read- ⁇ ilyy adjustable meanswhich are adapted to intermittently seizeand release the shell B or elements iixedly secured thereto to pre# vent recoil of-.therockdrill when the piston reverses in one end of theV cylindenand toV enable the rock drill to -be ⁇ moved along" the shell by the jar resulting upon reversal of the piston in theother end of the cylinder.V
  • the stationary means associated with the shell B mentioned hereinbefore may consist Y Y y of a rod O which is preferably disposed Within the coniines of the shell Bgand isseated with -itsfforward end in a bearing plate ⁇ P secured to thefront end of the shell B by means of bolts Q.
  • the rod() is preferably of cylindrical form and maybe of such length end extends beyond the correspondinglend'of the shell B.
  • yIn structures wherein the length'of the rod O exceeds that of the shell B the rear end of the rod() may be suitably supported by a cross head R which Y itself .is supported by bolts S, secured in any suitable manner to the rearendof the shellv B.
  • the rod O is providedwith a flange T rto seat against the inner surface of thecross head R'Aandthe end Uroftherod O which projects rearwardly ofthe cross head VR is threaded to receive a nut V wherebyy therod may be secured iXedly againstendwise movement.
  • Thelink W is ladapted-to assume-alateral position' with respect torthe 'rod and hasin its free end an aperture c throughfwhichfthe rod, O'extendsand the aperture c is ⁇ of some-V what larger diameter than thevrod Orso-that the link ,WV willrbe7 capable of some degree of oscillatory movement with-respecty to the g
  • the front and rearends or edges' of the aperture c constitutes-grippingedgesl andev respectively which, ⁇ whenthe linkW occupies aninclinedposition, are adapted.
  • f Means are providedftoholdthe link in thedesired operative position and-'to'urge the saidlink constantly in position to assure an immediate gripping actionv thereof on the rodU-and thus avoid anyrtendency of the rock drill A to recoil rupon the occurrence of a; shock due to'the'reversal of the Ypiston-CK inthe cylinder EL
  • the means provided for this' purpose comprises aiguide rod ,f which extends slidably through ⁇ an apertureg in the f link W and ⁇ in this instance located intermei diate the aperture "c and the bolt'Xv.
  • the guide'rodf ⁇ may be of suitable length disposed' forwardly and rearwardly respectively. of the link W and againstprwhich they end of theguide rod f is a head k ragainst f which the rear end of the ⁇ spring' j is adapted .to-bean' and on the front end ofthe guide rod 'f is threaded a-nut oto forni a seat for the front end of the spring L and also to vary the tension-ofthe springs h1 and j.
  • the head1@ of thefguiderod f is pivotally connected toa lever p which has a shaft g seat with their adjacent ends. 0n the rear ⁇ r 'rsi journalled in the bracketY so that when the lever p is oscillated in one directionV or the other, one of the springs L or j will be comsity of constantly applying pressure kto thek pressed to.v exert a yieldable pressure against f lever.
  • Y 7 f'or the purpose of insuring ythe correct position of the link W,'thegrip portion s of the lever 1 is provided with a bore t to accommodate a spring pressed plunger@ having a head c) which is adapted toV engage sei-rations fw forlocking the levers p and 1 in the desired operative position.
  • the ⁇ serrations w may be suitably formed in arcuate formation on the side of the bracket Y so that an ample contact between the vhead v of the plunger 'a and the said serrations will be assured.
  • Y Y v Y Y v The locking contact between theheadv 'v of the plunger u and the'serrationsis preferably such that the levers Y' and p will remain in position to hold one orthe other ofthe springs 7L or j'under compression unaffected by the vibrationsincidentto the operation of the'd'rilly A.
  • the linkv W' may be au-A tomatically reversed from the position' which A plunger 3 has' a'hollow headwhichlies within the bore 2 an-d a spring 4 seating with one end against one end. of" the bore 2 actswith it-s otherendv against the Y'plungerA 3' to hold said plunger in thekrear end of the bore 2.
  • a convenientl support is provided fortli'e bearing a and said support connprises a main clampingmember 5 whichembraces the'shell ⁇ to receive a pair'of springs and'jwh-ich are Band carries on one 'endhooksV 6 which may comprises a bearing a the shell B designated generallyl by a', is provided to 'act Y engage the edge of the shell B: In .the oppo-- site side of the clamping member is disposedt a shoe .7 which may be moved laterallyl of thel shell B by means of a set screw 8 in the4 clamping member 5. The shoe 7 may also be' provided with a hooked portion 9-to overlie the edge of the shell adjacent to the shoe.
  • i au" spring 7' will thus be compressed so that it constantly tends to force the linklW in the direction in which it ⁇ is desired to move the rockdrill A.
  • the gripping edge e which is the rear edge of the aperture c, will frictionally engage the surface of the rod O, and the link W will be maintained in this position as will also the levers r and p by the plunger u which engages one of thel serrations w.
  • the linkW will alternately grip and release the rod O in such wise that any movement of the rock drill resulting from the jars of the piston K will only be in a forwardly direction since, when the piston K changes its direction of movement in the rear end of the cylinder E, the rock drill will plunger 3; 'The spring 4 will thenbe compressed by the continued forward movement of the rock drill yuntil the plunger strikes .
  • the present invention has been found to be extremely 'eflicient This is ⁇ largely due to the fact that the percussive element o f the drill will always be in the proper positionl relatively to the drill steel so that the maximum effect of the blow thereto may be obtained, and lalsoinf-part due to the fact that the 'drill is' not Vsubjected to a heavy pressure-tending to drive-it 'in the direction of the work.
  • the link merely holds the rock drill immovable. to prevent recoil thereof during the reversal of the piston at the end of one strokeV and allows'thelrock drill to be actuated alo-ng the shell during the reversal of the piston at the end of the return stroke.
  • Inaffe'edin device the combination of" a ⁇ support andV ar motor slidably supported. by thesupport, a Workingimple'ment,.a hamT mer pistonreci'procable in the motorwto,v actuate thezworking -implement'and to, actuate f themotor longitudinally.ofthesupportp a.
  • Vpressed means; ⁇ acting against the, link to ⁇ maintain saldi-link ⁇ 1n,k
  • bracket and adapted to frictionally engage u the rod, spring pressed means for urging c y the linkjinto frictional contactwith the rod,

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
US423066A 1930-01-24 1930-01-24 Feeding device for rock drills Expired - Lifetime US1868294A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE374383D BE374383A (en(2012)) 1930-01-24
US423066A US1868294A (en) 1930-01-24 1930-01-24 Feeding device for rock drills
FR704669D FR704669A (fr) 1930-01-24 1930-10-22 Dispositif d'avancement pour perforatrices de roches
DE1930568527D DE568527C (de) 1930-01-24 1930-10-29 Vorschubvorrichtung fuer Gesteinsbohrmaschinen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US423066A US1868294A (en) 1930-01-24 1930-01-24 Feeding device for rock drills

Publications (1)

Publication Number Publication Date
US1868294A true US1868294A (en) 1932-07-19

Family

ID=23677549

Family Applications (1)

Application Number Title Priority Date Filing Date
US423066A Expired - Lifetime US1868294A (en) 1930-01-24 1930-01-24 Feeding device for rock drills

Country Status (4)

Country Link
US (1) US1868294A (en(2012))
BE (1) BE374383A (en(2012))
DE (1) DE568527C (en(2012))
FR (1) FR704669A (en(2012))

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1006369B (de) * 1953-10-28 1957-04-18 Salzgitter Maschinen Ag Vorrichtung zur Beeinflussung der Vorschubgeschwindigkeit des Bohrers einer Gesteinsbohrmaschine
BE552177A (en(2012)) * 1955-10-31
US3870279A (en) * 1972-09-11 1975-03-11 Allied Steel Tractor Prod Inc Stepper carriage advancement system

Also Published As

Publication number Publication date
FR704669A (fr) 1931-05-23
DE568527C (de) 1933-01-21
BE374383A (en(2012))

Similar Documents

Publication Publication Date Title
US3978931A (en) Air-operated drilling machine or rotary-percussive action
US1868294A (en) Feeding device for rock drills
US1835675A (en) Feeding device
US2306040A (en) Rock drill
US2721491A (en) Impact means for power-operated pipe wrench
US3160074A (en) Rock drill feeding devices
US2251269A (en) Rock drill
US1843121A (en) Drilling machine
US2631479A (en) Pneumatic tool dresser
US2061908A (en) Rock drill
US1502648A (en) Shank and bit punch
US2121817A (en) Punch mechanism
US2010496A (en) Feeding device for percussive motors
US1788034A (en) Feeding device
US1870389A (en) Feeding device for percussive motors
US1718430A (en) Drilling mechanism
US2169637A (en) Rock drill
US2010321A (en) Feeding mechanism
US2608181A (en) Wear bushing structure for percussive tools
US2359971A (en) Drilling apparatus
US2081918A (en) Rock drill
US1395747A (en) Shank and bit punch
US2298503A (en) Rock drill
US2121818A (en) Punching mechanism
US2115911A (en) Rock drill