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Патент USA US2409844

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ADJUSTABLE .DRILL MOUNTING
Filed July 9, 1945
42
HG1
‘
BY
ATTORNEY
Patented Oct. 22, 1946
2,409,843
UNITED STATES PATENT OFFICE
2,409,843
ADJUSTABLE DRILL MOUNTING
Albert Feucht, Garfield Heights, Ohio, assignor
to The Cleveland Pneumatic Tool Company,
Cleveland, Ohio, a corporation of Ohio
Application July 9, 1945, Serial No. 603,884
4 Claims.
(Cl. 255-51)
l
The present invention relates broadly to rock
drilling equipment, but more particularly to a
drilling apparatus including a rock drill of the
drifter type having an adjustable mounting for
supporting and moving the drill.
In work necessitating the use of such equip
,
2
\
construction and aggroupment of the elements
peculiar to this structure, as will become apparent
from a more complete examination of this speci
fication.
i
In the drawing:
ment, namely tunneling operations requiring the
Figure 1 is a side elevational view, with parts
in section, of the improved drill mounting means
removal of rock or ore, holes must be drilled for
shown associated with a mine car;
the blasting charges in the face of the work
Figure 2 is a plan view thereof;
ings 'to drive the tunnel or drift. The form of 10
Figure 3 is a vertical sectional view through
the tunnel face produced by such a blast will
the pump being taken substantially on line 3_3
be governed primarily by the depth to which the'
of Figure 1;
holes are drilled. Flat perpendicular tunnel
Figure 4 is an aggregate sectional View illus
faces are particularly desirable, but to obtain
trating three positions of the valve for control
the same it is necessary to have the blind ends 15 ling the flow of fluid to and from the mounting
of the holes lie in the‘same vertical plane ex
tending laterally of the tunnel, so that the rock
Referring to the drawing for a more detailed
or‘ore body will break cleanly in approximately
description of the invention, a mine car of con
the same plane ywhen the charges are ñred.
ventional vconstruction is generally designated by
Means for rapidly raising and lowering the rock 20 the reference numeral 6, the same being movable
drill in the process of drilling holes for a blasting
within a mine B on the tracks l. The mine car
round are well known in the art. One type of
includes a horizontally disposed platform 8 and
supporting means used heretofore to control the
wheels 9, the platform supporting a motor l0
position of the drill has been of the nature of
operated by means of compressed air or the
an- arm, or boom-like member, pivoted about- a 25 like for driving the pump Il. The motor l0 and
ñxed point on the base or frame of the sup
pump Il are of conventional construction but for
porting structure. A drill so held moves in a
purposes of illustration, the pump has been
vertical arc which sometimes necessitates shift
shown in `section in Figure 3 of thedrawing.
means.
ing the position of the base or frame to com
i
i
The pump includes a base I2 and chamber i3
pensate for variations in the distance between 30 for containing the ñuid, the ñuid being discharged
the drill and the work face. Another type of `
supporting means which overcomes the disad
vantage of arcuate movement of the drill is dis
closed in my Patent No. 2,379,l37,' granted June
26, 1945. The present invention is an improve 35
ment thereover in that the source of power fluid
used to operate the rock drill is also used to
move the drill from one position to another in
the desired fashion, thus eliminating practically
to and from the container by means of the gear
wheels I4.
A plate I5 is secured by means of cap screws
or the like i6 on the front end of the car plat
form 8, said plate having bracket arms tl eX
tending upwardly therefrom for supporting a
guide sleeve I8. This guide sleeve I8 provides
a means of attaching the rock drill and mount
ing to the car, said rock drill and mounting being
all of the manual effort heretofore involved in 40 detachably associated with the sleeve I3.
the process.
'
Mounted for slidable movement within the
The primary object of the invention, therefore,
sleeve l 8, there is a cylinder I9 closed at its upper
is to provide improved means for mounting the
end 20 and telescopically receiving within its
drill whereby the mounting can be maintained in
lower end 2l a tubular post 22. The post 22 car
a constant vertical plane parallel to the face of
ries a pedestal 23 on its lower end adapted to
the work when moving from one drilling position
rest on the floor of the mine B while the upper
to another.
end thereof carries a piston 24 of a diameter
Another object of the invention is to provide
equal to the inner diameter ofthe cylinder I9.
an improved mounting for rock drills and fluid
This piston carries packing rings 25 for prevent
operated means associated therewith for moving
ing the escape of the fluid 26 from within the
the drill in a vertical plane parallel to the face
cylinder. An arm 2l is attached by means of a
of the work when moving from one drilling posi
clamp 28 to the lower end of the cylinder I9` and
tion to another.
said arm is provided with a second clamp 29 for
Other objects and advantages more or less
retaining the guide shaft 30, said guide shaft
ancillary to the foregoing reside in the specific 55 being mounted so as to be parallel with the cyl
2,409,843
4
3
inder I9 atall times.
A second arm 3l disposed
parallel to the arm 2l is carried on the upper
ends of the cylinder I9 and guide shaft 3D. This
second arm is attached to the closed end of the
cylinder i9 by means of a U-shaped clamp 32
and is attached to the upper end of the guide
shaft 3S by means of U-shaped clamp 33. The
arm 3l and‘clamp 32 form supports for a pair
of pulleys 34 around which is trained a cable 35.
One end of the cable 3d is connected to an ear
36 extending laterally of the sleeve it, while the i
other end of said cable is connected to an ear 3l
times be maintained in a constant Vertical plane
parallel to theface of the work when movin-g
from one drilling position to another. As be
fore indicated, the pump l l is operated by means
of the motor l0, which moto-r is also within easy
reach of the operator and can be readily turned
on and off by means of the lever 53. The motor
It), pump il and plate i5 are ñxedly secured in
spaced relation on the car platform'ß' vwhile the
cylinder I9 and tubular post 22 are detachably
held in the sleeve IS.
The adjustment of members supporting the
rock drill and guide shell is as follows: the clamp
ing means ldd aroundY the cylinder i9 and the
clamping sleeve 33 around the shaft Se are both
attached `to and extending laterally of a, slide 38
clamped by means 39 on the guide shaft ell. The
slide 38 carries an arm ¿il on which is supported
loosened; then the `three-Way valve "#55 is operat
the rock drill 4l. The rock dril1 M is attached
ed to raise or lower the cylinder i9 against the
to the arm ¿lil by any desired means well known
door support offered by the tubular post 22;
in the art, the rock drill being also of _conven
movement of the cylinder l5 in either direction is
tional construction and including a drill steel 42
and feeding mechanism 43. As is well known in 20 transmitted two-fold to the supporting bar 40
through the cable 35, for the cable and pulleys
the` art, the drill steel d2 is moved into engage
3ft are arranged in the manner of a single block
ment with the work by means of the feeding
and tackle wherein the single block moves and
mechanism ¿i3 and transmits to the work the re
ciprocating hammer impulses created in the rock
drill 4|.
In accordance with the present invention, a
hydraulic means has been provided for raising
and lowering the drill mounting means, the fluid
being fed to and from the cylinder IS under the
induces twice as much Vmovement on thev free end
of the tackle; and when the proper elevation of
“the drill has been reached, the clamps around the
cylinder G9 and the Shaft 3B are tightened. '
The supporting truss, comprising the cylinder
i9 and the shaft 3Q, is left undisturbed at all
control of the operator. " Extending from the 30 times and is moved up or down as a unit, at
closed end ofthe cylinder le 4there is a iiuiol pres
which times the support arm «it moves twice as
sure line ¿le which extends downwardly along the
’far ,upon the shaft 3d.
cylinder and then branches off therefrom as
¿lli is intended to be a length of high pressure air
The fluid pressure line
hose possessing the necessary ñexibility to coop
shown in Figure l for connection with a -three
way valve 45. This valve ¿l5 is provided with a 35 erate with the vertical movement of the cylinder.
handle ¿it adapted to be rotated by the operator
when changing the position of the drill. A pipe
It is, then, apparent from the foregoing ,dis
closure that, for a given length of movement
available in the cylinder i9, there will be twice
lll extends from a, connection A8 on the valve d5
the amount of movement imparted to the slide
with its other end terminating at 49 on one side
of the pump il. A second pipe 50 has one end 40 :t8v and the rock drill 4l. Furthermore, the con
struction of elements is such as to permit the
connected to the valve at 5l and its other end
entire range of positions for the rock drill from
connected at 52 to the other side of the pump l i.
that shown in Figure l to a position very close
In Figure 4 of the drawing the valve ¿l5 is shown
to the floor of the mine B;
in three positions. With the valve in the posi
It is of course to be understood that when
tion designated a, fluid from the pump l l will Ibe
initially starting a drilling operation, the tubular
discharged through the pipe 5e into the valve ‘l5
post 22 and cylinder i9 are movable relative to
and through the pressure line @4 into the cylin
one another so as to position the pedestal 23 on
der I9. As nuid is admitted into the cylinder i9,
the floor of the mine in a ñrm and secure man
said cylinder will be raised relative to the tubular
member 22 carrying with it the guide shaft 3e and 50 ner. From that point on the admission and ex
haustion of fluid from the cylinder i9 controls the
drill 4l. In order to lower the drill to a new
positioning of the drill ¿ll and its drill steel e2.
drilling position, the fluid must be exhausted
Although the foregoing description is neces
from the cylinder i9, which necessitates rotating
sarily of a> detailed character, in order to corn
the valve 45 to the position c, at which time fluid
will now from the cylinder i9 through the pres- , pletely set forth the invention, it is to be under
stood that the specific terminology is not in
sure line til' into the valve d5, and through the
tended to be restrictive or conñning and it is to
pipe ¿il to be returned to the receptacle i3, When
be further understood that Various rearrange
the cylinder has been lowered a suflioient dis
ments of parts and modifications of structural
Atance so as to locate the drill for a new drilling
position, the valve ¿E is then rotated to the new 60 detail may be resorted to without departing from
the scope or spirit of the invention >as herein
position b in Figure 4 of the drawing7 in which
claimed.
position it will be noted that the pressure line
I claim:
leading to the cylinder i9 has been cut off from
1. In mechanism of the character described, a
its supply and any fluid emanating from the
post adapted to bear against the ground, a unit
pump will travel from the pipe 50 through valve
mounted to travel vertically on said post; a pulley
45 and be returned to the pump through the pipe
on the upper end of said unit, a slide, a drill car
El. The valve 45 is highly sensitive, thereby en
ried thereby, said unit comprising a guide track
abling'the operator at all times to eifectively
for said slide, and a cable running over said pul
control the amount of fluid being admitted to or
ley, one end of said'cable being fixed andthe
exhausted from the cylinder i9 and thereby con 70 other being attached to said slide, whereby a
trolling the upward and downward movement of
given travel of said unit produces double that
the drill. ,
,
The manner of mounting the drill including
travel of said slide and drill.
g
2. In mechanism of the character described, a
the cylinder I9, tubular post 22 and guide shaft
cylindrical post adapted to bear against the
3l), assures that movement of the drill will at all 75 ground, a vertically movable unit comprising a
2,409,843
5
cylinder telescoping with said post, a pulley on
the upper end of said unit, a slide, a drill carried
thereby, said unit comprising a guide track for
said slide, pressure fluid means for moving said
cylinder up and down on said post, and a, cable
running over said pulley, one end of said cable
6
said cylinder, and a cable running over said pul
ley, one end of said cable being fixed and the
other beingattached to said slide, whereby a
given travel of said unit produces double that
travel of said slide and drill.
4. In mechanism of the character described, a
being fixed and the other being attached to said
post adapted to bear against the ground, a unit
slide, whereby a. given travel of said unit pro
mounted to travel vertically on said post, said
duces double that travel 0f said slide and drill.
unit comprising a guide shaft parallel to said
3. In mechanism of the character described, 10 post, a pulley on the upper end of said unit, a
a cylindrical post adapted to bear against the
slide on said guide shaft, a drill carried by said
ground, a vertically movable unit comprising a
slide, and a cable running over said pulley, one
cylinder telescoping with said post, a pulley on
end of said cable being ñxed and the other end
`the upper end of said unit, a slide, a drill car
being attached to said slide, whereby a given
ried thereby, said unit comprising a guide track 15 travel of said unit produces double that travel
for said slide, pressure fluid means for moving
of said slide and drill.
said cylinder up and down on said post, com
ALBERT FEUCHT.
prising a ñexible fluid conductor connected to
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