US1788034A - Feeding device - Google Patents

Feeding device Download PDF

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Publication number
US1788034A
US1788034A US427517A US42751730A US1788034A US 1788034 A US1788034 A US 1788034A US 427517 A US427517 A US 427517A US 42751730 A US42751730 A US 42751730A US 1788034 A US1788034 A US 1788034A
Authority
US
United States
Prior art keywords
motor
support
rod
piston
friction shoe
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
US427517A
Other languages
English (en)
Inventor
Sr 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 BE375294D priority Critical patent/BE375294A/xx
Application filed by Ingersoll Rand Co filed Critical Ingersoll Rand Co
Priority to US427517A priority patent/US1788034A/en
Priority to DE1930551087D priority patent/DE551087C/de
Priority to FR706623D priority patent/FR706623A/fr
Application granted granted Critical
Publication of US1788034A publication Critical patent/US1788034A/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 actuating a percussive motor relatively to its support.
  • One object ofthe invention is to force ofthe reciprocatory piston of the motor for moving the motor relatively to the support.
  • Another object is to prevent recoil of the 1p motorupon the reversal of the piston at the end of one stroke and to enable the motor to bemoved along the support by the jar imparted by the piston upon the reversal of the piston at the end of the opposite stroke.
  • Figure 1 is a plan view of a portion of the motor and its support having the invention applied thereto
  • a Figure 2' is an elevation, partly in section, taken through Figure 1 on the line 2 2-looking in the direction indicatedby the arrows
  • Figure 3 is an elevation, partly in section
  • A designates amotor Whicl1, in:this instance, is illustrated as a portion of a rock drill, and B is a support Whereon the motor Aniay be slidably mountedto enable the said motor to be advan'cedto the work and re tracte'd therefrom.
  • the motor A comprises the usual cylinder B adapted to accommodate a piston C of the recip'rocatory hammer type usually employed for delivering blows of impact to a working implement, such as a drill steel (not shown).
  • v Secured to the rear end of the cylinder B, as by means of side rods orboltsl), is a back head 15 toform a closure'for the rear end of the cylinder B and to form fa housing for a throttle valve F whereby the admissio-n of 1 pressure fluid into the motor A-may be'conautomatically utilize the trolled,
  • the motor A may be provided with suitableya'lve mechanism "(not shown) for effecting the distribution of pressure fluid to'thecylinder B.
  • the means provided for this purpose comprises a stationary orfixed member in the form of a rod G which may be suitably supported at its ends by the sup portBfi- I 1 i
  • the rear end of theorodjG is preferably secure'dto across head H 'which in turnis supported by standards J extending rearwardly ofthe support B.
  • a bracket L Secured to the back head E as by means of the side rods D is a bracket L whereon is pivotally mounted a friction shoe- 0.
  • the friction shoe O is adaptedto be moved into different positions of frictional engagement with therod G and is preferably arranged approximately laterally with respect to the rod G.
  • a groove'Pof In theend of the friction shoeadjacent the rodG is a groove'Pof a shape to conform o substantially to the surface of the rod Gr.
  • the groove P When used in connection with a cylindrical rod, such as that illustrated, the groove P may be of partly circular form and the rear and front edges Q, and B respectively of the groove P constitute gripping edges which, in certain positions of the friction shoe 0, engage the rod G.
  • the bracket L In order to actuate the friction shoe into frictional engagement with the rod G, the bracket L is provided with a pair of cylinders S and T disposed'forwardly and 'rearwardly respectively of the friction shoe 0.
  • the cyl inders S and T may be secured tothe'bracket in any suitable manner, as for instance, by bolts U, and are provided with chambers V to accommodate plungers W and X, the plunger W being disposed within the cylinders and the plunger X in the cylinder T.
  • the movement of the plungers W and X is affected by means of pressure fluid and such pressure fluid is conveyed to the outer or closed ends of the cylinders by inlet passages Y which-communicate with-a valve chamber 1 valve (Z in the end of which extends exteriorly of the Z in a valve chest I; attached to the side of the bracket L and secured thereto by bolts 0.
  • valve chamber Z Within the valve chamber Z is a throttle shape of a tapered plug, one valve chest 6 to receive a Wing lever 6 whereby the throttle valve maybe manipulated.
  • the throttle valve (Z has a recess fin its inher end to which pressure fluid is supplied by a supply passage L 'WlllChiS formed" in the bracketL and is controlled by the throttle '39 cess f and is adapted to register with the supvalve F.
  • Inthewallof-the throttle valve cl is a port .g/ which communicates with there ply passages Y.
  • a groove is to establish communication betweenthe port 9 and the supplypassages.
  • the groove his .of such extentthat it may only afiord communication between the port g and one. or the other o'f the supply passages Y.
  • asecond groove owhic'h' is of such extent thatv it may simultaneously establish communication between both of the supply passages Y andan exhaust port 79 in the valve "chest band leading to the atmosphere.
  • bracket L is provided with a suitable bearingportion 9 which has a bore 0" through extends.
  • the bore 1' may, as shown, be of larger diameter than-the rod T to receive a bushing swhich serves as a renewable bearing surface for the rod G.'
  • Thebnshing 8 may be secured in the asttled position in any suitable manner as for instance, by means of a nut u-which is threaded on a rearwardly projecting end 12 bushingand acts against the corresponding end of the bearing 9.
  • a head 20 On the front end of the bushing s is a head 20 which seats against the front end of-the bearing Q'.
  • the friction shoe 0 In order to constantly maintain the motor inithe orrect operative position with respefzt to the working implement, the friction shoe 0 should occupy a position substantially like that illustrated in Figure 2 in which the gripping edge bears against the rod G. To the end that the friction shoe 0 may be maintained in this position, the throttle valve (Z is rotated so that pressure fluid may flow through the rear supply passage Y into the piston chamber V of the cyinder T. V V V
  • the throttle valve d When the motorjA approaches the foremost limit of its travel with respect to the support B, the throttle valve d may be rotated to a position for admitting pressure'fluid into the pistonchamber V of the cylinder S. In this recoil by the gripping motor A will be gradually advanced towards rearward travel on the support, the throttle largely to the valve (Z may be rotated to a position in which the groove 0 will establish communication be-- tween both supply passages Y and the exhaust port p. At the same time the throttle valve d may pressure fluid to the motor A and also to out ofi the flow of pressure fluid to the passage L.
  • the present invention has been found to be unusually efficient in practice. This isdue fact that the percussive elements, such as the motor A, may at all times be maintained in theproper operative position with respect to the implement which it is intended to actuate. A maximum effect of the blows of the hammer piston will therefore be obtained.
  • Another very desirable feature of the present invention is that while the feeding means assures a proper advancement ofthe motor relatively to its support, it does not actuate the motor in the direction of the work with such undue force as to interfere with the proper operation of the motor, particularly in the case of rock drills ofthe drifter type having rotation mechanism for rotating the working implement.
  • the combination be closed to both out ofi the supply of.
  • pressure fluid actuated means for actuating the first said means into frictional engagement with the fixed member, thereby prevent- 'lilg recoil ofthe motor upon reversal of the piston at the end of one stroke and permitting the motor to be moved' along the support by the piston upon reversal of the piston at the end ofits opposite stroke.
  • V In a feeding device, the -combination with a motor anda support whereon said motoris slidably mounted, alreciprocatory hammer piston in the .motor imparting ars thereto for moving tlie motor: longitudinally of't-hc'support, of a stationary member eX-' tending longitudinally of'the support, a'movable member carried by the motor and adapted to friction-ally engage the stationary member for preventing recoil of the motor, and pressure'fiuid actuated. means to press the movable member selectively into different positions for frictionaily engaging the"sta tionary member, thereby enabling the ham mer pistonto advance and retract the motor relatively to the support.
  • tor is slidably mounted, a reciprccatory hammer'piston *in the motor imparting engagethe fixed member, a plurality of pros sure-fluid actuated means acting on opposite sides of the friction means for actuating the engaging positions, and a valve' for contr lling the flow ofpressure fluid tothe pressure actuated means.
  • a rciprocatory hammer piston inthe motor impar are thereto for moving the motor longitudinally of the support, of a rod affixed to thesupport, a friction shoe-carriedby the motor and adapt- .to-frictionally engage the rod for preventinglrecoil' of'the motor, fluid actuated plungers acting on opposite sides of the friction shoezfor actuating said friction shoe into different engaging positions,and a valve for selectively controlling the flow of presa.
  • a feeding device the combination with a motor and a support whereon said mothereto for actuating the motor longitudinally of the support, of a stationary rod extending longitudinally of the support, a friction shoe pivotally connected to the motor and adapted to frietionally engage the rod for preventing recoil of the motor, fluid actuated plungers' adapted to act selectively against opposite sides of the friction shoe to press I said friction shoe into different positions for engaging the rod, thereby enabling the ham- .ier piston to advance and retract the motor relatively to the support, and a valve for controlling'the flow of pressure fluid to and from the plungers.
  • a reciprocatory harnmer piston in the motor imparting jars thereto for actuating said motor relativelyto the support, of a rodjsupported at its ends by the supportand extending longitudinally thereof, a bracket carried by the motor, a bushing carried by the bracket and forming a movable V support for the rod intermediate the ends of the rod, a friction shoe, pivoted on the cylinders on the bracket and disposed on the opposite sides of the friction shoe, plungers in the cylinder for pressing the friction shoe into different positions of engagement
  • the rod to prevent recoil of the motor there- 7 by enabling the motor to be advanced and retracted on the support by the piston, passages in'the bracket for conveying pressure fluid to the cylinders to actuate the plungers, and a throttle valve for selectively controllingthe flow of pressure fluid to and from the cylinders.

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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)
  • Hydraulic Motors (AREA)
  • Earth Drilling (AREA)
US427517A 1930-02-11 1930-02-11 Feeding device Expired - Lifetime US1788034A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE375294D BE375294A (de) 1930-02-11
US427517A US1788034A (en) 1930-02-11 1930-02-11 Feeding device
DE1930551087D DE551087C (de) 1930-02-11 1930-11-26 Selbsttaetige Vorschubvorrichtung fuer schlagende Gesteinsbohrmaschinen
FR706623D FR706623A (fr) 1930-02-11 1930-11-27 Dispositif d'avance pour moteurs percutants de perforatrices et autres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US427517A US1788034A (en) 1930-02-11 1930-02-11 Feeding device

Publications (1)

Publication Number Publication Date
US1788034A true US1788034A (en) 1931-01-06

Family

ID=23695204

Family Applications (1)

Application Number Title Priority Date Filing Date
US427517A Expired - Lifetime US1788034A (en) 1930-02-11 1930-02-11 Feeding device

Country Status (4)

Country Link
US (1) US1788034A (de)
BE (1) BE375294A (de)
DE (1) DE551087C (de)
FR (1) FR706623A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2443814A (en) * 1942-06-08 1948-06-22 Joy Mfg Co Forging apparatus
US2693733A (en) * 1950-02-09 1954-11-09 Joy Mfg Co Power hammer for mechanical tamping

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2443814A (en) * 1942-06-08 1948-06-22 Joy Mfg Co Forging apparatus
US2693733A (en) * 1950-02-09 1954-11-09 Joy Mfg Co Power hammer for mechanical tamping

Also Published As

Publication number Publication date
DE551087C (de) 1932-05-27
BE375294A (de)
FR706623A (fr) 1931-06-27

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