US1844874A - Feeding device for percussive motors - Google Patents

Feeding device for percussive motors Download PDF

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Publication number
US1844874A
US1844874A US464210A US46421030A US1844874A US 1844874 A US1844874 A US 1844874A US 464210 A US464210 A US 464210A US 46421030 A US46421030 A US 46421030A US 1844874 A US1844874 A US 1844874A
Authority
US
United States
Prior art keywords
motor
rod
clamp means
support
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
US464210A
Other languages
English (en)
Inventor
Sr William A Smith
George H Fuehrer
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 BE375293D priority Critical patent/BE375293A/xx
Application filed by Ingersoll Rand Co filed Critical Ingersoll Rand Co
Priority to US464210A priority patent/US1844874A/en
Priority to GB35024/30D priority patent/GB369961A/en
Priority to DE1930549638D priority patent/DE549638C/de
Priority to FR706622D priority patent/FR706622A/fr
Application granted granted Critical
Publication of US1844874A publication Critical patent/US1844874A/en
Anticipated expiration legal-status Critical
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
    • 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

Definitions

  • This invention relates to feeding devices, but more particularly to a device of this character adapted for advancing and retracting a percussive motor on its support and whereon motors of this type are usually mounted to assure the correctposition of the motorwith respect to the work.
  • One obj ect of the invention is to enable the percussive motor to be moved longitudlnally of a support or mounting by the force'or ar imparted to themot'or by the hammer piston upon reversal of the hammer piston at the Other objects will bein part obvious and in partpointed out hereinafter.
  • Figure 1 is a side elevation partly in sec-' tion of the feeding device and also a portion of a percussive motor and its support, and
  • Figures 2 and 3 are transverse views taken through Figure 1 on the lines and 33 respectively looking in the direction indicated by the arrows.
  • A designates a percussive motor, such a as a rock drill, and B a support for the motor illustrated as a shell havinginternal longitudinally extending guideways C to receive slidably guide ribs D carried by the motor A
  • the motor A comprises a cylinder E having there in a piston chamber F to accommodate a hammer piston G reciprocable in the piston chamu-j.
  • ber F to deliver blows of impact to a work ing implement, as for example, a [drill steel (not shown), p p
  • the motor A is: provided with means adapted to'alternately seize and release a fixed element on the support to enable the motorto be actuated longitudinally of the support B by the force of the jars resulting from the act of reversal of the hammer piston G in the extremities of the piston chamber F.
  • the means provided for this purpose includes a rod L which is preferably of cylindrical shapeso that the surfacethereof may serve as agripping surface 0 for clamp means designated generally by P and adapted to be actuated longitudinally of the rod by the motor A.
  • the rod L which preferably extends throughout the entire length of the support Blnay be secured at its front end to the support in anysuitable and convenient manner and in the present instance extends. rearwardly of the support.
  • the rear end of the rod L may be fastened to a cross head Q. as by means of a nut R threaded on the end of the rod L.
  • the cross head Q as is the usual practice, is supported by and held in spaced relation with respectto the rear end of the support B by means of the usual rods or bolts S having sleeves T, arranged thereon to act as spacers and which spacers may abut with one end against the rear end of the support B and with their other ends against the cross head Q.
  • a .casinr-Z Disposed at the rear end of the rock drill A is a .casinr-Z having front and rear laterally exten ing flanges b and 0 wherein are apertures d and e respectively.
  • the aperture e is suitably proportioned to receive the rod L and the aperture 11, beingof somewhat larger diameter than the aperture 0, is adapted to receive the bushing U.
  • the flange b may accordingly be seated against the lug and be clamped thereto by means of the nut Y so that the casing Z will be held rigidly in fixed position with respect to the motor A.
  • [llhe clamp 1111811118 P preferably consists of a bnshin split longitudinally to form a pair of 'hfil' -sec.tions f, each half-section having rear-mid firont coniform :portions or extremities and h respectively, and between the coni m portions ⁇ 1 and h are external grooves to receive a yoke whereby the clamp means P may be actuated longitudinaill of the casing Z.
  • fare recesses 0 shaped to conform to the surface 0 of the rod L which the clamp means P are "intended to grip.
  • the means provided for causing the clam p means-Pto exert a gripping action on the rod L consists of a pair of cup shaped members 1) and 9 arranged at the rear and front ends respectively of the clamp means P.
  • the cusps p and g are identical in all their .
  • the cups p and q are further provided with recesses s for the reception of springs t which act against the abutments of recesses 8 with amend and with theot-her end against the clamp means P to exert a constant pressure against the cups for maintaining them in substantially fixed position with respect to the casing Z.
  • Convenient means may be provided for actuafiingfithe clamp means P relatively to the casing Z in order to enable said clamp means P to be pressed into gripping relationship with the rod L by either the cup p or 9, depending upon the direction in which it is intended to actuate the motor A.
  • the means illustrated for this purpose is adapted to be actuated manually and comprises a rod "2) slidable within a bore 'w in the casing Z.
  • the rod 1 is preferably provided with a reduced portion a; which extends through an aperture 3 in the yoke iv.
  • the front end 2 of the rod "0 may be suitably threaded to receive a cylindrical nut 2 which slides with in the bore w to serve as a guide for the front end of the rod.
  • the nut 2 further acts as a seat for one end of a spring 3 which is disposed about the reduced portion w of the rod '0 and acts with its other end against the yoke 7c.
  • a spring 4 similar to the spring 8 is disposed rearwardly of the yoke 70 against which it acts with its front end and bears with its rear end against a shoulder 5 on the rod o and located at the rear extremity of the reduced portion m of the rod v.
  • link 7 Secured pivotall. as by means of a pin 6,420 the rear-endo the rod 0) is-a. link 7 having an aperture 8 to receive a pm 9 arranged eccentrically with respect to and carried by a shaft 10 which is ijournaled in a bearin 11 on the rear end-of-thecasing-Z.
  • a manipulating lever 12 On the aft 10 is a manipulating lever 12 for actuating the rl'fld v and thus also the clamp means P relatively to the casing Z.
  • the operation of the device is as follows: Let it be assumed that it is intended to actuate the motor A forwardly in'the direction of the work. In such case the lever 12 may be actuated in a direction to compress the spring 4 andrthusythrou the medium of the spring 4 and the yoke move .the clamp means P forwardly so that the coniform portions h of the half-sections will bear against the socket met the cup 9. In this position of the clamp means P the cup .12 will be held out of contact from the clamp means P by the spring t within the cup p.
  • the motor A With the hammer .pistonG in operation, the motor A will be held against rebound upon reversal of [the hammer piston at the end of each rearward stroke thereof since, upon such reversal, the jar resulting therefrom will merely cause the cup 9 .to force the clamp means P, that is, the half-section .f, to grip the rod L tightly. Asa result, the motor A and the elements afiixed thereto, such as the casing Z-will be held momentarily stationary.
  • the motor A may then be retracted by means of the force or jar to which it is subjected by the ham under compression. This movement of these elements will shift the position of the clamp means P so that the coniform portions 9 thereof will be brought into contact with the socket r in the cup 17.
  • the motor A may be actuated to a neutact from the cooperating coniform sockets of the cups p and g.
  • the motor A may then descend of its own weight or, when lying in a horizontal position, may be manually moved along its support to the desired posi: tion with respect to the work.
  • a feeding device the combination of a motor and a support whereon said motor is slidably mounted, a reciprocatory hammer piston in the motor imparting jars thereto upon reversal of the piston for actuating the motor longitudinally of the support, a rod on the support, clamp means carried by the motor and being slidable on the rod, and means associated with the motor and being adapted to selectively engage the opposite ends of the clamp means for actuating the clamp means into engagement with the rod to prevent recoil of the motor upon-reversal of the piston.
  • a feeding device the combination of a motor and a support whereon said motor is slidably mounted, a reciprocatory hammer piston in the motor imparting jars thereto upon reversal of the piston for actuating the motor longitudinally of the support, a rod on the support, clamp means'carried'by the motor and encircling the rod, and socket means carried bythe motor and being'slidable on the rod to engage the ends of the clamp means for actuating the clamp means into engagement with the rod to prevent recoil of the motor upon reversal of the piston.
  • a feeding device the combination'of, a motor and a support whereon said motor is slidably mounted, a reciprocatory hammer piston in themotor imparting jars thereto for moving the motorrelatively to the support, means on the support forming a gripping surface, clamp means carried by the motorand encircling the first said means, means encircling the clamp means and being movable relatively to the clamp means to actuate the clamp means into engagement with the gripping surface for preventing recoil of the motor, and control means for actuating the clamp means relatively to the motor.
  • a feeding device the combination of a motor and a support whereon said motor is slidably mounted, a reciprocatory hammer piston in the motorimparting jars thereto for moving the motor relatively to the support, a rod on the support, a casing carried by the motor, clamp means in the casing and encircling the rod, abutments in the casing arranged at opposite ends of the clamp means, control means for moving the clamp means into engagement with the abutments to press the clamp means into gripping relation with the rod, thereby preventing recoil-of the motor, and control means for actuating the clamp means relatively to the motor.
  • a feeding device the combination of a motor and a support whereon said motor is slidably mounted, a reciprocatory hammer piston in the motor imparting jars thereto for moving the motor relatively to the support, a rod on the support, a casing carried by the motor, a split bushing in the casing and encircling the rod, a pair of oppositely directed coniform portions on the bushing, abutment means in the'casing having coniform sockets to receive the coniform portions, and control means to actuate the bushing into the sockets whereby said bushing will be pressed into gripping relationship with the rod to preventrecoil of the motor.
  • a feeding device the combination of a motor and a support whereon said motor is slidably mounted, a reciprocatoryhammer piston. in the motor imparting jars thereto for moving the motor relatively to the support, a rodon the support, .a casing carriedby the motor, clamp means in the casing encircling the rod and comprising a pair of half-sections having coniform extremities, cups in the casing having coniform sockets to receive the coniform extremities for pressin ⁇ ; the half-sections into gripping relationship with the rod, springs interposed between the clamp means and the cups to hold said gaps against movement relatix ely to the easmg, a yoke in the casing engaging the halfsoctions, and control means acting againstthe yoke for moving the clamp means into gripping relation with the cups and the rod or preventing recoil of the motor upon reversal of the piston.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)
US464210A 1930-06-27 1930-06-27 Feeding device for percussive motors Expired - Lifetime US1844874A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE375293D BE375293A (de) 1930-06-27
US464210A US1844874A (en) 1930-06-27 1930-06-27 Feeding device for percussive motors
GB35024/30D GB369961A (en) 1930-06-27 1930-11-20 Improvements in feeding device for percussive tools
DE1930549638D DE549638C (de) 1930-06-27 1930-11-25 Konusvorschubvorrichtung fuer Schlagmotoren von Gesteinsbohrmaschinen
FR706622D FR706622A (fr) 1930-06-27 1930-11-27 Dispositif d'avance pour moteurs percutants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US464210A US1844874A (en) 1930-06-27 1930-06-27 Feeding device for percussive motors

Publications (1)

Publication Number Publication Date
US1844874A true US1844874A (en) 1932-02-09

Family

ID=23842977

Family Applications (1)

Application Number Title Priority Date Filing Date
US464210A Expired - Lifetime US1844874A (en) 1930-06-27 1930-06-27 Feeding device for percussive motors

Country Status (5)

Country Link
US (1) US1844874A (de)
BE (1) BE375293A (de)
DE (1) DE549638C (de)
FR (1) FR706622A (de)
GB (1) GB369961A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2693733A (en) * 1950-02-09 1954-11-09 Joy Mfg Co Power hammer for mechanical tamping
US4332420A (en) * 1980-01-11 1982-06-01 Coski William D Reciprocably supported dual drive member and features thereof
WO1983004068A1 (en) * 1982-05-19 1983-11-24 William David Coski Reciprocably supported dual-drive member and features

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2693733A (en) * 1950-02-09 1954-11-09 Joy Mfg Co Power hammer for mechanical tamping
US4332420A (en) * 1980-01-11 1982-06-01 Coski William D Reciprocably supported dual drive member and features thereof
WO1983004068A1 (en) * 1982-05-19 1983-11-24 William David Coski Reciprocably supported dual-drive member and features

Also Published As

Publication number Publication date
BE375293A (de)
DE549638C (de) 1932-04-29
GB369961A (en) 1932-03-21
FR706622A (fr) 1931-06-27

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