US2811170A - Solenoid pilot controlled main valve for machine tools or the like - Google Patents

Solenoid pilot controlled main valve for machine tools or the like Download PDF

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Publication number
US2811170A
US2811170A US43935854A US2811170A US 2811170 A US2811170 A US 2811170A US 43935854 A US43935854 A US 43935854A US 2811170 A US2811170 A US 2811170A
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United States
Prior art keywords
passage
liquid
discharge
piston
housing
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Expired - Lifetime
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English (en)
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Schmidt Franz
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Individual
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Publication of US2811170A publication Critical patent/US2811170A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
    • F15B13/0431—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the electrical control resulting in an on-off function
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/42—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor
    • F16K31/423—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor the actuated members consisting of multiple way valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86582—Pilot-actuated
    • Y10T137/86614—Electric

Definitions

  • control elements of this type hitherto known consist substantially of a cylinder equipped with an electromagnetic control slide valve, the upper surface of which cylinder requires precision working and is provided with suitable apertures which coincide with bores provided with registering passage months in a special common controlgear housing and accommodating this cylinder in a snug fit.
  • a number of bores must be provided in the common control gear housing for accommodating the control cylinders coordinated to the individual working cylinders.
  • the common control gear housing is difiicult to produce and moreover the inaccessibility makes it difficult to carry out the service which is necessary in order to maintain a constant flow of pressure medium.
  • both the control cylinders and also the bores in the common control gear housing accommodating them are subjected to expensive precision machining in order to ensure a tight snug fit.
  • the problem which the invention sets out to solve is to produce a hydraulic control element which is constructed in a practical manner so that, without any machining beyond the ordinary, it can easily be connected with the corresponding working cylinder so that it guides the fluid medium, carries out accurately the control operations with the required rhythm of the machine and furthermore, while ensuring easy accessibility, enables any desired number of similar control elements to be lined up to form batteries with mutually independent operation but common admission and discharge of the pressure medium.
  • the novel feature of the invention consists in that a valve is employed which is accommodated in an oil-tight housing arranged between. the liquid pressure conduit and the passage for the working cylinder in question and which consists of a rotary body, for example a ball; which valve, together with an independent or unsupported piston with which it is preferably in contact, carries out both similar and lagging stroke movements and is axially shiftable with this piston through the pressure fluid loading the outer surface of the piston and valve by means of a known slide valve control, for example, an electromagnetic control gear and rhythmically alternately completely closes the liquid pressure conduit to the working cylinder and the liquid discharge therefrom, but allows the admission and discharge passage of the working cylinder to remain open in any stroke position so that, when the liquid pressure conduit is open and the liquid discharge is correspondingly closed, the liquid feed is eifected and when the liquid pressure conduit is closed and the liquid discharge is open the liquid discharge from the working cylinder takes place.
  • a known slide valve control for example, an electromagnetic control gear and rhythmically alternately completely closes the liquid pressure
  • Fig. '1 is a longitudinal section in the vertical plane through a control element
  • Fig. 2 is a part section through two control elements united to form a battery.
  • a ball 3 is mounted in a liquid-tight housing 1, between a liquid pressure conduit 2 and a passage 6 of the working cylinder in question within a cage formed preferably by rubber seating rings 4 and a guide 5 so that the ball is capable of limited movement.
  • the ball 3 shuts off the pressure medium feed from theliquid pressure conduit 2 and in its lowermost the pressure medium can flow from the passage 6 into the discharge passage 9 and on the other hand, i. e. in lowest position the pressure medium can'flow from the'liquid pressureconduit 2 into the passage 6 leading'to the working cylinder.
  • An independent or unsupported piston 8 is mounted in a cylinder 7 below the ball 3 andthe ball-3 contactsthe tapered upper end. of this piston 8. so that the discharge passage 9 is always free.
  • a pressure medium chamber 11 is connected to the liquid pressure conduit. 2 by means of a passage 15 controlled by an electromagnetic slide valve control gear 12, 13, 18, 18'.
  • an electromagnetic slide valve control gear 12, 13, 18, 18' Although a single magnet control gear could be used, in thepresent instance a double magnet control gear is preferably provided.
  • the housing 12 of a control slide valve rod 13 is: mounted which covers the pressure medium chamber of the freely movable piston 8 at the bottom and, 'has in addition. to the passage 15 leading into the pressure medium chamber 11, on each side thereof a passage communicating directly or over an interposed'additional pump e. g; a quick-return motion pump with the main pressure stri'cted portion is provided and the conical. end of the, slide valve rod forms the actual etfectivemember of the.
  • the core 18 and the slide valve rod 13 form a unit which has only a single bearing between the core 18 and the eflfective end of the slide valve rod, so
  • Fig. 1 the right hand magnet of the double magnet 18' is active so that the end of the slide valve rod 13 allows the feed from the main passage 2 through the passage 15 into the pressure medium chamber 11 of the piston and closes or shuts off the outflow to the discharge passage 16.
  • the ball 3 is pressed by the piston 8 against the upper seat ring land as a result the flow from the main passage 2 to the passage 6 for the working cylinder is cut off.
  • the pressure oil in this cylinder now flows underneath the ball 3 through the apertures in theguide 5 and into the discharge passage 9 terminating above the piston 8.
  • the liquid-tight housing 1 and the slide valve rod housing 12 have continuous or uninterrupted admission and discharge conduits which register when several housings 1 and 12 are coupled together with interposed rubber packings 19 as shown in Fig. 2.
  • Covers 20 provided with connecting'sockets close the two ends of the battery. [Although there are now common admission and discharge points for the pressure oil, the individual control elements can influence the working cylinders to which they are coordinated independently of each other. In the drawing designates the holes for the anchor bolts, 21
  • a liquid-tight housing provided with a liquid pressure conduit and a working cylinder passage and a liquid discharge passage
  • a cage supported within said housing intermediate said liquid pressure conduit, said working cylinder passage and said discharge passage, said cage comprising upper and lower valve seat rings and an interposed valve guide
  • a cylinder disposed within said housing beneath said cage, the said liquid pressure conduit and liquid discharge passage having communication with said working cylinder passage through said valve seat rings and said guide, a spherical valve freely disposed within said cage and adapted for alternate seating engagement with one and the other of said seat rings, a piston disposed within said cylinder and being freely movable therein and having an upper portion'engageable with said spherical valve for maintaining said discharge passage open when the valve is seated on the upper seat ring,'a pressure medium chamber in said cylinder beneath said piston, a passage in said housing in communication with said liquid pressure conduit and said pressure medium chamber, a second liquid discharge passage in said housing adjacent said last passage, and a slide valve supported by said housing and being operative to alternately
  • a hydraulic control device wherein said slide valve is supported on one end of a valve rod disposed at right angles to said liquid pressure conduit and said liquid discharge passages, and electro-magnetic means operatively associated with the other end of said rod for imparting axial movement thereto with a corresponding movement of said valve.
  • said electro-magnetic means comprises a magnetic core on the other end of said valve rod, and a short stroke double magnet within which said core is disposed.
  • a hydraulic control device wherein said liquid pressure conduit and said liquid discharge passages extend through said housing transversely thereof and in parallel relation to one another whereby the -housings of a plurality of control units may be disposed in side-by-side relation and have a common liquid admission and a common liquid discharge while said units are capable of independent influence on the working cylinder.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Multiple-Way Valves (AREA)
  • Magnetically Actuated Valves (AREA)
US43935854 1954-04-30 1954-06-25 Solenoid pilot controlled main valve for machine tools or the like Expired - Lifetime US2811170A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DESCH13827A DE1110013B (de) 1954-04-30 1954-04-30 Druckmittelsteuerung fuer den Druckmittelzu- und -abfluss zu einem hydraulischen Servo-Motor
DE300454X 1954-04-30

Publications (1)

Publication Number Publication Date
US2811170A true US2811170A (en) 1957-10-29

Family

ID=25783597

Family Applications (1)

Application Number Title Priority Date Filing Date
US43935854 Expired - Lifetime US2811170A (en) 1954-04-30 1954-06-25 Solenoid pilot controlled main valve for machine tools or the like

Country Status (5)

Country Link
US (1) US2811170A (de)
CH (1) CH339015A (de)
DE (1) DE1110013B (de)
FR (1) FR1105809A (de)
GB (1) GB772672A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2896665A (en) * 1955-08-25 1959-07-28 Mead Specialties Company Inc Normally closed three-way valve
US3106870A (en) * 1960-04-14 1963-10-15 Herbert C Abrams Power cylinder and control unit
US3326239A (en) * 1962-12-21 1967-06-20 Saint-Joanis Andre Fluid distributor devices
CN106402070A (zh) * 2016-09-13 2017-02-15 江苏恒立液压科技有限公司 阀芯定位复位装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1260252B (de) * 1962-12-11 1968-02-01 Electro Chimie Metal Schwingungserzeuger fuer stroemende Mittel
DE2904573C2 (de) * 1979-02-07 1983-01-27 Mannesmann Rexroth GmbH, 8770 Lohr Von einem regelbaren Elektromagneten betätigtes hydraulisches Ventil
DE3231172C1 (de) * 1982-08-21 1984-03-01 Drägerwerk AG, 2400 Lübeck Elektromagnetisch betaetigtes Ventil fuer Druckmittel
US4895042A (en) * 1988-09-16 1990-01-23 Akie Wang Pump lever for a jack

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US844753A (en) * 1905-05-24 1907-02-19 Gen Electric Governing mechanism for elastic-fluid turbines.
US2339352A (en) * 1941-11-18 1944-01-18 William A Ray Fluid control valve
US2408883A (en) * 1942-10-01 1946-10-08 Bliss E W Co Solenoid controlled valve
US2517406A (en) * 1943-12-31 1950-08-01 Int Harvester Co Hydraulic system for periodic transmission of power from constant delivery fluid service

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE763594C (de) * 1943-04-25 1952-12-22 Erich Herion Elektromagnetisch zu steuerndes Vierwegventil
DE831058C (de) * 1943-12-31 1952-02-11 Int Harvester Co Hydraulische Kraftanlage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US844753A (en) * 1905-05-24 1907-02-19 Gen Electric Governing mechanism for elastic-fluid turbines.
US2339352A (en) * 1941-11-18 1944-01-18 William A Ray Fluid control valve
US2408883A (en) * 1942-10-01 1946-10-08 Bliss E W Co Solenoid controlled valve
US2517406A (en) * 1943-12-31 1950-08-01 Int Harvester Co Hydraulic system for periodic transmission of power from constant delivery fluid service

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2896665A (en) * 1955-08-25 1959-07-28 Mead Specialties Company Inc Normally closed three-way valve
US3106870A (en) * 1960-04-14 1963-10-15 Herbert C Abrams Power cylinder and control unit
US3326239A (en) * 1962-12-21 1967-06-20 Saint-Joanis Andre Fluid distributor devices
CN106402070A (zh) * 2016-09-13 2017-02-15 江苏恒立液压科技有限公司 阀芯定位复位装置

Also Published As

Publication number Publication date
CH339015A (de) 1959-06-15
GB772672A (en) 1957-04-17
FR1105809A (fr) 1955-12-08
DE1110013B (de) 1961-06-29

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