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US2524055A - Hydraulic telemeter system with variable-rate valve shutoff unit - Google Patents

Hydraulic telemeter system with variable-rate valve shutoff unit Download PDF

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Publication number
US2524055A
US2524055A US63482A US6348248A US2524055A US 2524055 A US2524055 A US 2524055A US 63482 A US63482 A US 63482A US 6348248 A US6348248 A US 6348248A US 2524055 A US2524055 A US 2524055A
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US
United States
Prior art keywords
valve
fluid
driven
lever
movement
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
US63482A
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English (en)
Inventor
Clarence A Hubert
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.)
Navistar Inc
Original Assignee
International Harverster Corp
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
Application filed by International Harverster Corp filed Critical International Harverster Corp
Priority to US63482A priority Critical patent/US2524055A/en
Priority to DEJ1771A priority patent/DE828026C/de
Application granted granted Critical
Publication of US2524055A publication Critical patent/US2524055A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
    • A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
    • A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
    • A01B63/1006—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means the hydraulic or pneumatic means structurally belonging to the tractor
    • A01B63/1013—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means the hydraulic or pneumatic means structurally belonging to the tractor and being located inside the tractor body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • 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
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • 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
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • F15B9/12—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor in which both the controlling element and the servomotor control the same member influencing a fluid passage and are connected to that member by means of a differential gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/06—Cranes in which the lifting movement is done with a hydraulically controlled plunger

Definitions

  • This invention has to do with telemeter type hydraulic power transmitting systems wherein operation of a fluid-driven motor is terminatable by the closing of a control valve therefor, and more particularly concerns an improved control unit quantitatively sensitive to the ii'ow of fluid through the motor and being effective for closing the valve and thus stopping the motor incident to a predeterminable quantity of such flow.
  • control member I5 could also be manipulated oppositely to the direction in which it'had been manipulated for opening the control valve and to thus close the control valve, although it is contemplated that in most instances the control member will be al'owed to occupy a position into which it has been moved for opening the valve and that there- 'after the valve will be closed by the operation of a iluid driven unit 20 which comprises a gear motor 2
  • the control valve I4 controlscommunicatio between the source II and a fluid driven motor in the form of a two-way hydraulic ram B.
  • Gear motor '2I is connected in series with the hydraulic ram B so that there is correlation between the amount said ram is caused to operate and the distance the driven element 22 is moved for causing closing of the control valve I4 and termination of operation of the ram.
  • valve plunger I9 While the control member I5 and the piston 24 (containing rephasing valves V) of the ram B occupy correlated positions, as illustrated in Fig. 1, the valve plunger I9 will be in the neutral position closing all ports in the valve casing 25. Consequently fluid drawn from the reservoir R through a conduit 28 by a constant delivery pump 29 will be discharged by that pump through a conduit 3
  • valve member enlargements 12 and 13 are to the left of their respectively associated ports 49 and 14, the fluid discharged through the conduit 1I will flow through the port 14 and thence into the right end of a channel extending axially through the element I9. Fluid is discharged from the left end of this channel 15 through the port 46 and theconduit I3 back to the reservoir.
  • will be communicative through the port 49 with the left end of the valve element passage 15 so the fluid exhausted from the left end of the cylinder 45 passes through said passage 15 and thence through port 11 of the control valve into the conduit I3 for return tothe reservoir.
  • the fluid passing through the gear motor for causing movement of the motor piston 24 to the left will energize the fluid driven unit 20 for causing the motor driven walking beam member I1 to swing counter-clockwise about its then fixed pivot 16 for shifting the control valve element I9 toward neutral, that is, toward its valve ,closing position illustrated in Fig. 1.
  • the distance the piston 24 will have been moved responsive to -the movement of the lever I5 toward the position Y is correlated with the distance of such movement of the lever I5.
  • Movement of the ram piston 24 in one direction will, therefore, cause the arm 94 to rock in one direction for increasing the operating depth of the tools whereas movement of the piston in the opposite direction will decrease the depth at which the tools operate or raise the ltools to a transport position.
  • This relation between the amount of movement of the piston 24 and the driven element 22 is established by coordinatingr the number of revolutions of the gear
  • the variation of the distance which the driven element 22 of the fluid driven unit 20 is driven per unit of linear travel of the ram piston 24 is variable by changing the position of the fulcrum I I0 with respect to the lever
  • as the piston 24 moves back and forth between the ends 'of the cylinder 45 causes the trunnions of the running nut
  • the fulcrum IIB for the lever 2 at position B" such movement of the trunnions between positions BS and BT will cause the trunnions
  • is adjustable between the positions A", B" and C" for adapting the apparatus different identical control characteristics for the three to have size rams A, B, and C, (or for other size rams accommodated by placing the fulcrum member H8 at different respective positions in the lever slot H9) that said fluid driven unit is adjustable to selectively determine the distance the driven element 22 thereof is driven per volumetric unit of ow of the operating uid for a ram to thereby selectively calibrate the distance of movement of the control member I5 with the amount of responsive operation of the ram.
  • a hydraulic power transmitting system comprising a control valve openable to accommodate ow of fluid therethrough; valve control means including a linkage, and a control member con-l 5..
  • a hydraulic ram operable under the inuence of the flowing fluid responsively to the manipulation of said control member and operable an amount constituting a function of the volume of such flow;
  • a uid driven unit connected in xseries with the control valve and including a driven element positively driven by the uid at a rate proportional to the rate of flow thereof through the valve, said driven element being connected with such linkage and operable therethrough tc close the valve when driven a distance correlated with the distance the control member was manipulated when openingr the valve, and said fluid driven unit including means adjustable to selectively determine the distance said driven element thereof is driven per volumetric unit of flow of the iiuid through the control valve to thereby selectively calibrate the distance of movementof the convl0 trol member with the amount of responsive operation of the ram.
  • a hydraulic power transmitting system comprising a control valve openable to accommodate nected serially with the control valve and ram and including a driven element positively driven by the fluid flowing serially through said valve and ram at a rate proportional to the flow rate of such serially flowing iluid, said driven element being connected with said motor driven element and operable thereof to close the valve when such driven element has been driven a distance correlated with the distance the control member was manipulated when opening the valve, and said fluid driven unit including means adjustable to selectively determine the distancesaid driven element thereof is driven per volumetric unit of ilow of the serially flowing iluidto thereby selectively calibrate the distance of movement of the -control member with the amount of responsive operation of the ram.
  • a hydraulicpower transmitting system comprising a control valve manipulatable from a neutral setting to accommodate ow of a iluid column therethrough and resettable to neutral to preclude such ow; a hydraulic ram operable subject to the ilow of such uid column; conduit means communicatively connecting the valve and ram for directing the uid column to flow serially therethrough; a fluid-driven unit interposed in said conduit means and driven by and pursuant to the ilow of the fluid column therethrough, said unit including a power output element connected with said control valve to reset the same to neutral when driven pursuant to the driving of such unit; and said iluid-driven unit including means adjustable to selectively determine the amount said output element is driven per volumetric unit of such fluid transferred between said ram and the conduit means.
  • a hydraulic power transmitting system comprising a control valve openable to accommodate ow of fluid therethrough for operating rams of different 'bore and stroke selectively attachable thereto; valve control means including a manually operated control member manipulatable different distances attendant to opening such valve, and a motor-driven member drivable to close such valve; uid conducting power take-oil conduit means leading from the valve for selective communicative connection with said rams; a iluid driven unit interposed in said conduit means and including a driven element which is driven by and at a rate according to the amount of fluid passing through such unit, said driven element being connected with said motor-driven element of the valve control means for driving the same, to close the valve when driven an amount determined by the distance of manual setting of the manipulatable member attendant to opening the v'alve.
  • said fluid driven unit including means adjustable to selectively determine the amount of movement of its driven element with respect to the volume of uid passing through the unit forcorrelating the distance the selectively at- 11 tachable rams will be operated in accordance with the distance the manipulatable member is set when opening the valve.
  • a hydraulic power transmitting system comprising a control valve manipulatable from a neutral setting to accommodate ow of fluid therethrough and resettable to neutral to preclude the ow of such iluid, a hydraulic ram,
  • a hydraulic power transmitting system comprising a control valve openable to accommodate ow of iluid therethrough; valve control means including a manually operated control member manipulatable vdiierent distances attendant to opening such valve, and a motor-driven member drivable correspondingly diierent distances for closing the valve; a hydraulic ram; conduit means communicatively connecting said valve and ram for directing the flow of such fluid therebetween to incur operation of the ram an amount according to the volume of flowed fluid; a gear motor interposed in Vsaid conduit means; a threaded shaft constrained for rotation with a gear of such motor; a running nut meshed with the threads on said shaft for being-moved endwise of the shaft pursuant to rotation thereof; a lever fulcrum; a lever mounted on said fulcrum and having a portion spaced from the fulcrum operably connected with the running nut to cause swinging of the lever about said fulcrum pursuant to movement of the nut; and means connecting another portion of the

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
US63482A 1948-12-04 1948-12-04 Hydraulic telemeter system with variable-rate valve shutoff unit Expired - Lifetime US2524055A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US63482A US2524055A (en) 1948-12-04 1948-12-04 Hydraulic telemeter system with variable-rate valve shutoff unit
DEJ1771A DE828026C (de) 1948-12-04 1950-08-25 Verfahren zum Regeln eines zum hydraulischen Kraftheber gehoerenden Schiebers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63482A US2524055A (en) 1948-12-04 1948-12-04 Hydraulic telemeter system with variable-rate valve shutoff unit

Publications (1)

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US2524055A true US2524055A (en) 1950-10-03

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DE (1) DE828026C (de)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2717652A (en) * 1949-03-28 1955-09-13 Harry J Nichols Hydraulic pitch control system
US2750743A (en) * 1952-03-12 1956-06-19 Bosch Gmbh Robert Control devices for hydraulic motors
US2770098A (en) * 1952-03-12 1956-11-13 Bosch Gmbh Robert Hydraulic servo-motors
US2821173A (en) * 1955-01-21 1958-01-28 Adsit Thomas Ralph Work implement position control hydraulic system
US2830561A (en) * 1955-03-22 1958-04-15 Int Harvester Co Telemeter type hydraulic power transmitting system
US2839896A (en) * 1954-02-22 1958-06-24 Jung Schleifmaschinen H Gaub Combined hydraulic and mechanical control apparatus
US2940429A (en) * 1957-01-21 1960-06-14 Plenty And Son Ltd Control of variable-capacity pumps
US2958310A (en) * 1957-01-24 1960-11-01 Plenty And Son Ltd Pump control apparatus
US2970653A (en) * 1957-08-06 1961-02-07 Int Harvester Co Hydraulic depth control apparatus
US2984215A (en) * 1958-11-25 1961-05-16 Controller for fluid pressure operated devices
US2992632A (en) * 1954-11-03 1961-07-18 Harry J Nichols Hydraulic remote control systems
US3044639A (en) * 1958-10-30 1962-07-17 Alliance Machine Co Lock rod mechanism
US3044480A (en) * 1956-11-16 1962-07-17 Lee Shih-Ying Fluid flow controller
US3219121A (en) * 1962-08-03 1965-11-23 John W Barden Controllable pitch propeller hydraulic locking device
US3273467A (en) * 1965-01-26 1966-09-20 Fawick Corp Hydraulic system
US3736845A (en) * 1970-05-22 1973-06-05 H Weiste Variable length upper guide rod for a three-point loading rack
US3747351A (en) * 1971-10-22 1973-07-24 Bertea Corp Hydraulic system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2105473A (en) * 1934-08-10 1938-01-18 Walter C Dean Hydraulic steering gear
US2172315A (en) * 1936-12-15 1939-09-05 Askania Werke Ag Follow-up type control device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2105473A (en) * 1934-08-10 1938-01-18 Walter C Dean Hydraulic steering gear
US2172315A (en) * 1936-12-15 1939-09-05 Askania Werke Ag Follow-up type control device

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2717652A (en) * 1949-03-28 1955-09-13 Harry J Nichols Hydraulic pitch control system
US2750743A (en) * 1952-03-12 1956-06-19 Bosch Gmbh Robert Control devices for hydraulic motors
US2770098A (en) * 1952-03-12 1956-11-13 Bosch Gmbh Robert Hydraulic servo-motors
US2839896A (en) * 1954-02-22 1958-06-24 Jung Schleifmaschinen H Gaub Combined hydraulic and mechanical control apparatus
US2992632A (en) * 1954-11-03 1961-07-18 Harry J Nichols Hydraulic remote control systems
US2821173A (en) * 1955-01-21 1958-01-28 Adsit Thomas Ralph Work implement position control hydraulic system
US2830561A (en) * 1955-03-22 1958-04-15 Int Harvester Co Telemeter type hydraulic power transmitting system
US3044480A (en) * 1956-11-16 1962-07-17 Lee Shih-Ying Fluid flow controller
US2940429A (en) * 1957-01-21 1960-06-14 Plenty And Son Ltd Control of variable-capacity pumps
US2958310A (en) * 1957-01-24 1960-11-01 Plenty And Son Ltd Pump control apparatus
US2970653A (en) * 1957-08-06 1961-02-07 Int Harvester Co Hydraulic depth control apparatus
US3044639A (en) * 1958-10-30 1962-07-17 Alliance Machine Co Lock rod mechanism
US2984215A (en) * 1958-11-25 1961-05-16 Controller for fluid pressure operated devices
US3219121A (en) * 1962-08-03 1965-11-23 John W Barden Controllable pitch propeller hydraulic locking device
US3273467A (en) * 1965-01-26 1966-09-20 Fawick Corp Hydraulic system
US3736845A (en) * 1970-05-22 1973-06-05 H Weiste Variable length upper guide rod for a three-point loading rack
US3747351A (en) * 1971-10-22 1973-07-24 Bertea Corp Hydraulic system

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Publication number Publication date
DE828026C (de) 1952-01-14

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