US1920450A - Mining machine - Google Patents

Description

Filed Sept. l0 1.950

N3 "fr F. w. vonoz l,920,450

MINING MACHINE 2 Sheets-Sheet l lim-INI! F. w. VoD-oz LQZASO MINING MACHINE 2 Sheets-Sheet 2 ug., I? T933,

Filed Sept. l0, 1930 Maf/w91 Patented Aug. l, 1933 UNITED vsrIAiTEs PATENT OFFICE Goodman Manufacturing Company, Ill., a Corporationof Illinois Chicago,

Application September .10, 1930 lSerial No. 480,885

5 Claims. (Cl. 2262-9) This invention relates to improvements in mining machines of the shortwall type adapted to be moved on its bottom along themine bottom, and has among other objects Vto provide a new and improved mining machine having a drilling mechanism attached thereto for drilling in the mine wall at various elevations and angles with respect thereto.

A prior application,- Serial No. 263,402, led

by me March 21, 1928, and entitled Improve,-

ments in drilling mechanisms, shows a..mining I machine having a drilling mechanism attached thereto. While the device of my present invention Ashows a drilling mechanism attached to a mining machine, said presentinvention differs from my prior invention in that an vimproved means yis provided for -mounting thedrilling mechanism on a mining Amachine which takes up a minimum amount of head room and permits a maximum amount of vertical adjustment of the drilling mechanism and inthat an improved means is providedfor lpositively driving the drilling mechanism fromfthe mining machine motor. i

Other objects of my invention will appear from time to time as this specification proceeds. My invention may be more 'clearlyunderstood with reference to the accompanying vdrawings wherein: f Y

Figure 1 is a side kelevation ofthe deviceembodying my invention with `parts broken away and in section; f y Figure 2 'is an enlarged partial fragmentary plan view of the device shown in Figure 1 with partsv broken away and in section, and with the drilling mechanism `in the position shown by dotted lines in Figure 1; and

yFigure 3 is an enlarged partial .fragmentary side v-elevation of -the drilling mechanism as shown in Figure 2 with parts broken away and in section to more clearly show the details of my invention.

Referring now in particular tothe drawings, the vdevice embodying my invention includes a mining machine 4 of the low vein shortwall type having a drilling mechanism 5 mounted-thereon. Themining machine 4-is of a well known type having a motor 6 at the rearward end thereofand a cutting and feeding element forwardly of said motor and actuated thereby in a well known manner. The motor 6 is herein preferably shown as being an electric motor which is slidable on its' bottom on the mine bottom so as to provide a mining machine of minimum vertical dimensions commonly known as a mining machine of the low vein type.

The mining machine 4 has a cutter bar 8 projecting forwardly therefrom forvcutting alrerf in the mine wall and has feeding mechanism thereon for moving the mining machine along the mine wall as the cutter bar is sumped therein in a usual manner which is no part of my invention so will not herein be described in detail.

The feeding and cutting mechanism is driven from the forwardend of the motor 6 by means of a motor pinion 9 and intermediate gear 10 in a usual manner which will not herein be described in detail since it is no part of my invention. l

,Referring nowv in particular 4to the novel features of my invention, the kdrilling mechanism 5 has been mounted on the mining machine fi so as to provide afmin'ing machine and drilling mechanism of minimum height for drilling at variouselevations and angles with respect to the mine wall,r and so that said drilling mechanism may be driven by the mining machine motor 6 in all positions of adjustment of said drilling mechanism chine. y

A supporting frame 11 is mounted on the top portion of the mining machine 4 adjacent the longitudinal central axis thereof and extends from the forward portion of the motor 6 forwardly along the cutting and feeding element 7 beyond the intermediate gear 10. The supporting frame 11 serves as a housing for the reduction gear -mechanism lfor driving the drilling mechanism 5 from the mining machine motor 6 and also serves as a supporting means for a supporting arm 12 for said drilling mechanism and is xed to the top portion of thefmotor by means of vsuitable cap screws in a usual manner.

The supporting arm 12 is pivotally mounted on the supporting frame 1l for pivotal movewith respect to said mining ma- I ment with respectV to the mining machine 4 about a transverse axis, and has a forked'portion 15 journaled on bosses 16 extending outwardly from each side of .the supporting frame ll. The supporting 4arm 12 extends rearwardly from the supporting frame 11 along the motor 6 and has amember` 17 extendingv forwardly therefrom between the forked portionA 15 to engage the supporting frame 11 and form a stop to prevent said supporting armfrom being` moved about its pivotal axis beyond a certain. predeterminedpoint and thus prevent said supporting arm from being extended forwardly along said mining machine. Y

Means are provided to hold 'the supporting arm 12 at various angular positions with respect to the mining machine motor 6, which means herein comprise a plurality o `straps 19 pivotally supported at the rearward end or the mining machine motor 6 at opposite ends of a pin 20 supported on a supporting member 21 which in turn is xed to the rearward top portion oi said mining machine motor. A slot 22 extends longi-` tudinally of each strap 19 for a portion of the length thereof andeach slot l22 is engageable with opposite ends of a bolt 23, which bolt has` connection with the supporting arm 12 so that tightening of the nut on said bolt against the straps 19 holds said supporting arm in a fixed position with respect to the mining machine motor 6.

The rearward end of the supporting arm 12 has a drilling head 25 pivotally mounted thereon on pins 26 extending outwardly from each side ci said supporting arm in a usual manner so saidfdrilling head may be angularly movedr with 3' respect to said supporting arm. Straps 27 are pivotally connected to each side of the'supporting arm'12 and have connection with the drilling head 25 rearwardly of the point ol pivotal N connection or" said drilling head with the' sup-- e porting arm 12 to hold said drilling rious angular positions with respectto said sup-- porting arm in a manner similar to which `said vsupporting arm is heldin various` angular posir wai 4,021 thedrilling head 25 and has l tions with respect to the motor 6.

The drilling yhead 25 is 'oi an ordinary construction so will only bev described insofar as is necessary to fully disclose my present invention. A spur gear 29 is journaledonits hub within driving connection with a thread bar '3Q for rotating said thread bar and translationally moving said threadbar with respect to saidspur gear and drilling head. A suitable drilling means is adapted to be connected to the .forward end offthe thread bar 't' 80. The drilling means may be `of `any type well known to the art but is herein shown as a drill 31 having an ordinary type oi' fish tail bit 32 at its forward end, and conveying -iieans 31a extending therealong toremove the'cuttings from said bit during the drilling `operation and guide the drill within the hole.

Means are provided for driving the spur gear 29 from the motor 6 in all positions of adjustment of the drilling head 25 12 with respect to the mining machine, which meansV herein comprise a shaft 33 journaled within the supporting arm 12 and having a spur gear Se xed toits rearward end, which spur has driving connection with'the spurgear 29. The spur gears 29 and 2d are provided with relatively deepfteeth chamtered` at their edges so that the gear 34 may drive the gear 29 in all positions of adjustment ofthe drilling `head 25 with respect to. the supporting arm 12` in a usual .manner as .has been more full described in my priorapplication, Serial No. 263,l02,`here-` inbefore mentioned in this spejcication.` v ',A bevel gear 35 ixed'on `the'forward `end ofgthe .shaft 33 and isydrivenby abevel pinion 36 on-aitransverse shaft 37 `j` `1 urna.led within the by a bevel pinion Li0 `'fixed on a longitudinal head inea.: rugged constru'ction and supporting arm which means herein comprises a -lriction clutch v 44 of an ordinary construction. The friction clutch 44 is herein shown as a cone clutch but may be of any other form and is moved along the longitudinal shaft All to engage or disengage said clutch with the spur gear Zi2 by means of a clutch collar clutch yoke i6 and a suitable system of levers indicated at 47, having engagement with said clutch yoke.

It may now be seen that the drill 3l may be driven from the mining machine motor 6 in all positions of the supporting arm 12 and drilling head 25 with respect to said mining machine motor and that anew and novel means has been provided for driving saiddrill from said `mining machine motor which means is selectively connectible therewith and is or a simple It may also be seen that since the supporting arm 12 extends rearwardly along the mining machine l and that since moans are provided to prevent said supporting arm from extending forwardly along said V.miningmachina that a standard length of drill and feed par may be utilized for drilling and that a hole of the depth desired may be drilledin one operation without stopping the drilling mechanism to reset thebit or thread Vbar as is usual in drilling mechanismsmounted i..

on mjiningfmachines.

" 1t may thus be seen that a mining machine has been provided having a new and novel drilling mechanism supported thereon, which drilling mechanism is moved along 'the face with the mining machine 'as a korf is being cut thereunder vso that holes may be drilled in the mine wall at various `'positions therein during the undercntting operation without removing the mining machine from the coal and that this drilling mechanism is so constructed that it takes up a minimum amount of head room and permits the use vof a standard length drill and thread bar, thus eliminating the necessity of frequent adjustment of `said drill and thread bar during the drilling operation.

Although 1 have herein shown and described one form in which my invention may be embodied, it will be understood that the construction and arrangement of the various parts may be altered or changed Without departing from the spirit and scope thereof. Furthermoreyl do `not wish to `be construed as limiting myself to the particular form illustrated, excepting as it may be limited in the appended claims.

I `claim as my invention:

l. In combination with a mining machine, a motolg. and drilling mechanism supported on said `mining machine comprising a supporting havingv one endsupported on said mining machine forpivotal `movement about 'a trans-,-` verseaxis and having its opposite endV extending towards therearward end of said mining machine and. having a drilling head supported on Said oppositeend for adjustable movement with lll) Cil

ratively connecting respect thereto about an axis extending transversely-or" the longitudinal asis of arm and extending towards the forward end ci said mining machine, said dri ng head having a drill thereon for drilling in the mine wall-forwardly of said mining machine, and power transmission means carried within said supporting arm for operatively connecting said drilling head with said motor.

2. In combination with a mining machine, a motor, cutting and feeding mechanism supported forwardly of said motor, drive means for opersaid cutting and feeding mechanism with said ymining machine motor including a motor pinion and an intermediate gear driven therefrom, drilling mechanism supported on said mining machine comprising a supporting arm supported at one end on said mining machine for pivotal movement about a transverse axis having its opposite end extending towards the rearward end of said mining machine and having a drilling head supported on said opposite end of said supporting arm extending towards the forward end of said mining machine and supporting a drill at the forward end thereof for drilling-'a hole in the mine-wall forwardly of said mining machine, said ldrilling head being supported on said supporting arm for pivotal movement with respect thereto about an axis disposed transversely of said mining machine for forming an adjustable connection with said mining'machine for drilling a plurality of horizontal or angularly disposed holes in the mine wall at various elevations and angles with respect thereto and means for `driving said drilling mechanism from said motor comprising a spur gear meshing` with and driven from said intermediate gear.

3. In combination with a mining machine, a motor, cutting and :feeding mechanism supported forwardly of said motor, drive means for operatively connecting said cutting and feeding mechanism with said mining machine motor including a motor pinion and an intermediate gear driven therefrom, and drilling mechanism supported on said mining machine and having operative connection with said intermediate gear comprising a supporting arm supported at one end on said mining machine for pivotal movement about a transverse axis having its opposite end extending towards the rearward end of said mining machine and having a drilling head supported on said rearward end of said supporting arm extending towards the forward end of said vmining machine, said drilling head supporting a drill at the forward end thereof for drilling a hole in the mine wall forwardly of said mining machine and being supported on said supporting arm for pivotal movement with 'respect thereto about an axis disposed transversely of said mining machine for forming an adjustable connection with said mining machine for drilling a plurality of horizontal or angularly disposed holes in the mine wall at various elevations and angles with respect thereto, and power transmission means carried within said drilling arm connectible with said intermediate gear.

s. In a drilling apparatus, a support comprising a mining machine, said mining machine including a motor, a supporting arm extending in a rearward direction along said mining machine and pivotally connected therewith for movement about a transverse axis, a drilling head supported on the rearward end of said drilling arm for pivotal movement with respect to said drilling arm about a transverse axis, means for supporting said drilling arm in various positions of adjustment with respect to said mining machine, and means for limiting the pivotal movement of said supporting arm to prevent said supporting arm from extending forwardly of said mining machine.

5. In a drilling apparatus, a support comprising a mining machine, said mining machine including a motor, a supporting arm extending in a rearward direction along said mining machine and pivotally connected therewith for movement about a transverse axis, a drilling head supported 'on the rearward end of said drilling arm for pivotal movement with respect to said drilling arm about a transverse axis, means for supporting said drilling arm in various positions of adjustment with respect to said miningmachine, said means also limiting the pivotal movement of said supporting arm to prevent said supporting arm from extending forwardly of said mining machine, and power transmission means carried within said supporting arm for operatively connecting said drilling head with said motor.

FREDERICK W. VODOZ.

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