US3559750A - Supporting means for a mobile percussive rock drill for carrying out cylindrical cuts - Google Patents

Supporting means for a mobile percussive rock drill for carrying out cylindrical cuts Download PDF

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Publication number
US3559750A
US3559750A US832923A US3559750DA US3559750A US 3559750 A US3559750 A US 3559750A US 832923 A US832923 A US 832923A US 3559750D A US3559750D A US 3559750DA US 3559750 A US3559750 A US 3559750A
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US
United States
Prior art keywords
rock
drill
support
pattern
rock drill
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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
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US832923A
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English (en)
Inventor
Vladimir Mares
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.)
CESKOSLOVENSKY URANOVY PRUMYSL
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CESKOSLOVENSKY URANOVY PRUMYSL
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Publication of US3559750A publication Critical patent/US3559750A/en
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Expired - Lifetime legal-status Critical Current

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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
    • E21B15/00—Supports for the drilling machine, e.g. derricks or masts
    • E21B15/006—Means for anchoring the drilling machine to the ground

Definitions

  • percussive-type rock drills with guiding patterns of sheet iron enable to anchor said pattern by using a prior drilled central hole, locating thus the remaining holes. Similar arrangements can be used for manual control of the operation only, whereby drilling of larger holes is rather troublesome.
  • the subject invention is directed to improvements of supporting and guide means of similar percussive rock drills which would enable to drill a number of exactly parallel holes for a rock cut.
  • FIG. 1 is an elevation of a percussive rock drill in partial longitudinal section as applied at the rock face
  • FIG. 2 is a frontal elevational view of a stable drill pattern, said view taken in direction of the arrow a in FIG. 1,
  • FIG. 3 is a similar view of another drill pattern arranged on the opposite end of the drill support, said view taken in direction of the arrow b in FIG. 1,
  • FIG. 4 is a more detailed view showing in partial section the suspension of the suspension head of the drill support in the stable pattern
  • FIG. 5 is a frontal elevation of a part of the stable pattern without the support.
  • percussive rock drill comprises a substantially horizontal support I, supporting and guiding a reciprocating hammer drill 2 of common design and actuated by any of known driving means generating a reciprocating movement.
  • the support I is provided on its both extremities with suspension heads 5 and 6 represented for instance by bolts with enlarged heads on their free ends. Said suspension heads are adapted to be suspended in a manner which will be described later, in two oppositely arranged patterns 3 and 4.
  • the pattern 3 made for instance of reinforced sheet iron is anchored in the rock face 7 by means of two anchoring bolts 8 and is secured against turning by two adjustable rests 9.
  • the opposite pattern 4 is supported by an adjustable mounting pillar 10 provided with a number of openings II for a setting bolt 12.
  • the pattern 4 is secured on the mounting pillar 10 by means of a bracket 40, to which it is fastened by a wing nut 13 at each side of the vertical plane of symmetry.
  • the stable pattern 3 is provided with a number of circular holes 14 distributed according to the required position or the bore holes of the rock cut and in addition with a guiding slot 15, provided with cutouts I6 inthe horizontal branches of said guiding slot 15, which has in the exemplary embodiment approximately the shape of the letter 2. These cutouts 16 are situated always below each circular hole I4. At both extremities of the guiding slot 15 are circular holes 17 for inserting and removal of the suspensions head 5 of the support I of the hammer drill 2.
  • the oppositely arranged pattern 4 has a similar guiding slot I8 as the pattern 3, which guiding slot 18 is a mirror image of the slot I5 of said pattern 3.
  • Similar cutouts I9 corresponding to cutouts I6 of the slot 15 of pattern 3 are provided along the guiding slot 18 and equally circular holes 20 for inserting and removal of the suspension head 6 of the support of the hammer drill 2.
  • the drill steel 21 of the reciprocating hammer drill 2 has on its free extremity a drill bit 22, the external diameter of which is somewhat smaller than the internal diameter of sleeves 24 mounted firmly in the circular holes 14.
  • the drill steel 21 is guided in said sleeves 24 by means of a bushing 23.
  • both the bushing 23 and sleeves 24 are not shown, they can be however seen in FIG. 4 and 5.
  • the circular holes l7 and 20 of both patterns 3 and 4 have a somewhat larger diameter than the width of the guiding slots 15, I6 serving for suspension and safe guidance of the suspension heads 5 and 6 of the support 1 of the hammer drill 2.
  • FIGS. 4 and 5 show in more detail the suspension of the suspension head 5 in the stable pattern 3 and the guiding of the drill steel 21 with the drill bit 22.
  • the sleeve 24 is fixed to the pattern 3 by welding, the bushing 23 is provided with a longitudinal cut of a width surpassing the diameter of the drill steel 21 and with a handle 26 for manipulation.
  • the described structure operates as follows: Two short parallel bore holes for anchoring the anchoring bolts 8 are first drilled in the rock face.
  • the stable pattern 3 is fixed to said bolts 8 and its position is secured against turning by the adjustable rests 9.
  • the suspension head 5 of the support I of the hammer drill 2 is thereafter inserted into the circular hole I7 of pattern 3 and shifted manually in the guiding slot 15 up to the first cutout 16.
  • the suspension head 6 at the opposite extremity of the support 1 is in a similar manner suspended in the second pattern 4 by inserting into the circular hole 20 and by shifting to the first cutout 19 of the guiding slot 18.
  • the vertical and lateral position of the pattern 4 is thereafter adjusted by adjustment of the position and height of the mounting pillar I0 so as to coincide exactly and correctly with the position of the pattern 3.
  • the hammer drill 2 is thereafter brought to operation to start drilling of the first bore hole 25, whereafter after there is sufficient guidance for the drill bit 22 the bushing 23 is retracted and removed and the boring of the hole 25 continued.
  • the drill steel 21 with the drill bit 22 comes beyond the sleeve 24 of the hole 14 and the support I with the hammer drill 2 is manually shifted in the guiding slots 15 and 18 of both patterns 3 and 4 to the following cutout to proceed with boring of the next bore hole 25 until all required bore holes are finished.
  • rock cut has been designated as cylindrical rock out it should be understood that rock cuts of any shape are ineluded by this term so far the direction of all holes for this cut remain parallel, in difference to conical rock cuts.
  • Supporting means for a mobile percussive rock drill for carrying out rock cuts comprising in combination:
  • said support provided with suspension heads at both extremities for suspension in the cutouts of the guiding slots.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
US832923A 1968-06-19 1969-06-13 Supporting means for a mobile percussive rock drill for carrying out cylindrical cuts Expired - Lifetime US3559750A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS450968 1968-06-19

Publications (1)

Publication Number Publication Date
US3559750A true US3559750A (en) 1971-02-02

Family

ID=5387980

Family Applications (1)

Application Number Title Priority Date Filing Date
US832923A Expired - Lifetime US3559750A (en) 1968-06-19 1969-06-13 Supporting means for a mobile percussive rock drill for carrying out cylindrical cuts

Country Status (8)

Country Link
US (1) US3559750A (enrdf_load_stackoverflow)
AT (1) AT286210B (enrdf_load_stackoverflow)
CH (1) CH496878A (enrdf_load_stackoverflow)
DE (1) DE1931189A1 (enrdf_load_stackoverflow)
FR (1) FR2011242A1 (enrdf_load_stackoverflow)
GB (1) GB1259559A (enrdf_load_stackoverflow)
SE (1) SE347045B (enrdf_load_stackoverflow)
ZA (1) ZA694372B (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4059162A (en) * 1976-06-14 1977-11-22 Lawrence Brothers, Inc. Drilling unit for stadium seats
US6257350B1 (en) * 2000-02-11 2001-07-10 Case Corporation Multiple position staking system for a horizontal directional drill
CN103924931A (zh) * 2014-05-07 2014-07-16 湖南科技大学 一种多角度精确成孔的凿岩机气腿式支架
CN105443045A (zh) * 2014-09-02 2016-03-30 天津鑫丰达科技有限公司 一种风动式凿岩机多气腿支撑结构

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520438A1 (fr) * 1982-01-22 1983-07-29 Pele Cie Glissiere de marteau-perforateur a ancrage
DE10229322A1 (de) * 2002-06-29 2004-01-15 Kolbus Gmbh & Co. Kg Vorrichtung zum Vereinzeln eines Schuppenstroms von Druckprodukten in eine Folge beabstandeter Druckprodukte
EP1547948B2 (de) 2003-12-23 2012-11-14 Böwe Bell & Howell GmbH Vorrichtung zur Vereinzelung von Briefen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4059162A (en) * 1976-06-14 1977-11-22 Lawrence Brothers, Inc. Drilling unit for stadium seats
US6257350B1 (en) * 2000-02-11 2001-07-10 Case Corporation Multiple position staking system for a horizontal directional drill
CN103924931A (zh) * 2014-05-07 2014-07-16 湖南科技大学 一种多角度精确成孔的凿岩机气腿式支架
CN103924931B (zh) * 2014-05-07 2016-05-18 湖南科技大学 一种多角度精确成孔的凿岩机气腿式支架
CN105443045A (zh) * 2014-09-02 2016-03-30 天津鑫丰达科技有限公司 一种风动式凿岩机多气腿支撑结构

Also Published As

Publication number Publication date
DE1931189A1 (de) 1970-01-02
GB1259559A (enrdf_load_stackoverflow) 1972-01-05
ZA694372B (en) 1971-01-27
SE347045B (enrdf_load_stackoverflow) 1972-07-24
FR2011242A1 (enrdf_load_stackoverflow) 1970-02-27
CH496878A (de) 1970-09-30
AT286210B (de) 1970-11-25

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