EP0089447A2 - Dispositif hydraulique pilote pour commande à distance - Google Patents

Dispositif hydraulique pilote pour commande à distance Download PDF

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Publication number
EP0089447A2
EP0089447A2 EP82830066A EP82830066A EP0089447A2 EP 0089447 A2 EP0089447 A2 EP 0089447A2 EP 82830066 A EP82830066 A EP 82830066A EP 82830066 A EP82830066 A EP 82830066A EP 0089447 A2 EP0089447 A2 EP 0089447A2
Authority
EP
European Patent Office
Prior art keywords
lever
hydraulic
pressure
pusher
rod
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.)
Withdrawn
Application number
EP82830066A
Other languages
German (de)
English (en)
Other versions
EP0089447A3 (fr
Inventor
Pietro Mor
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.)
Ditta HIDROBEN SpA
Original Assignee
Ditta HIDROBEN SpA
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 Ditta HIDROBEN SpA filed Critical Ditta HIDROBEN SpA
Priority to EP82830066A priority Critical patent/EP0089447A3/fr
Publication of EP0089447A2 publication Critical patent/EP0089447A2/fr
Publication of EP0089447A3 publication Critical patent/EP0089447A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • F15B13/0422—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 manually-operated pilot valves, e.g. joysticks

Definitions

  • the invention refers to a hydraulic piloting device for remote control which sub stantially allows to exact proportionality between the control lever displacement and the pressure wanted by the users.
  • the invented device permits particular employ for hydraulic contrivances such as: distributors, cylinders, drivers and for the hydraulic regulation of pumps and motors having changing capacity.
  • the invented device permits a general simplification of the composition by using an insertion fitted in the central part of the envelope and allowing two functions: to put in to communication the users, by means of its own groove, with the drain and to act as pressure duct.
  • Another composing simplification is obtained by fitting the valve for the pressu re reduction in a cavity foreseen for this purpose in the upsetting envelope.
  • Another feature is the hydraulic circuit perfozmed in the seat of the above mentioned valve.
  • the invented device allows to carry out a hidraulic circuit performing the perfect sensible and proportional remote control of hydraulic contrivances in general and for hydraulic regulationof pumps and motors with changing capacity.
  • the delivery ducts for the users are connected to a drain by means of an insertion in the device body.
  • the fulcrum of this lever is fitted on a lever bearer integral with a head supported on a joint; by acting on a pusher which presses a supporting spring, the shifting of a small rod downwards is started.
  • the fee ding pressure is thus put into communication with a bore leading to one of the users: this communication is allowed by the fact that the annular chamber is com- munieating, through a radial bore, with two axial bores ending in anothsr annular chamber and permits to give rise to a pressure in the employ zone lower than the feeding one and. proportional to the width of the span opened in the small rod.
  • a spring is opposing, the stiffness of which is proportional to the displacement of the spring acting on the pusher.
  • the device employs similar operating compartments to the rod, in relation to the number of the employ ducts and to be used by changing the lever movement.
  • FIG. 1 is the longitudinal section of the hydraulic device showing the succession of the cinematic contrivances in rest position .
  • Fig. 2 represents, still in longitudinal section, the compartment of the oil passage in rest position of the control lever.
  • Fig. 3 represents the same compartment in operation phase of the hydraulic device.
  • connectors A and B are connected with drain T by means of insertion 2 fitted in the central part 3 of the control device 3 putting chamber E of rod 9 into communication with drain T and with bores A - B - C and D which lead to the employ ducts.
  • Lever 1 fulcrum is the screw thread on lever bearer 12 which, in its turn, is made stiff to head 13 still by means of screw thread, and everything is supported by ball joint 14 fitted by means of screw thread in part 3.
  • This one is foreseen is the reproduced part, introduced into central part 3 from the top end, made integral with the same part by means of suitable upsetting.
  • feeding pressure P is put into communication with bore A.
  • This communication is possible because the above annular chamber, already in communication with P by means of the rod lowering, is in its turn in comnunication, through radial bore F 6f part 10, with two axial bores Cl and C2 always existing on the said part 10, ending in their turn in an annular chamber G and then in bore A.
  • a lower pressu re P2 is obtained, but proportional to the width of the span opened by the rod.
  • Sring 11 is opposing to the span reduction and its stiffnes is in accordance with the displacement of lever 1 acting on pusher 4.
  • pressure remains constant in the time for each lever position.
  • the pressure delivered by the piloting device is strictly proportional to the displacement of lever 1. This movement can be repeated on the inlet bores of each small rod with a view to permitting the different employs.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Motors (AREA)
  • Servomotors (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
EP82830066A 1982-03-22 1982-03-22 Dispositif hydraulique pilote pour commande à distance Withdrawn EP0089447A3 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP82830066A EP0089447A3 (fr) 1982-03-22 1982-03-22 Dispositif hydraulique pilote pour commande à distance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82830066A EP0089447A3 (fr) 1982-03-22 1982-03-22 Dispositif hydraulique pilote pour commande à distance

Publications (2)

Publication Number Publication Date
EP0089447A2 true EP0089447A2 (fr) 1983-09-28
EP0089447A3 EP0089447A3 (fr) 1983-12-14

Family

ID=8190111

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82830066A Withdrawn EP0089447A3 (fr) 1982-03-22 1982-03-22 Dispositif hydraulique pilote pour commande à distance

Country Status (1)

Country Link
EP (1) EP0089447A3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1068098A1 (fr) * 1998-04-03 2001-01-17 Chapman/Leonard Studio Equipment, Inc. Soupape hydraulique de chariot de camera
DE19949802A1 (de) * 1999-10-15 2001-04-19 Mannesmann Rexroth Ag Vorsteuergerät

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2236101A1 (en) * 1973-07-05 1975-01-31 Sigma Diesel Hydraulic actuator arm - spring system and valve ports gives balance and sense of feel to operator
FR2308000A1 (fr) * 1975-04-18 1976-11-12 Wabco Westinghouse Gmbh Vanne pilote manoeuvree a la main pour un appareil de commande hydraulique
FR2327433A1 (fr) * 1973-12-13 1977-05-06 Sigma Hydraulique Perfectionnements aux dispositifs distributeurs de fluide, notamment pour telecommande hydraulique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2236101A1 (en) * 1973-07-05 1975-01-31 Sigma Diesel Hydraulic actuator arm - spring system and valve ports gives balance and sense of feel to operator
FR2327433A1 (fr) * 1973-12-13 1977-05-06 Sigma Hydraulique Perfectionnements aux dispositifs distributeurs de fluide, notamment pour telecommande hydraulique
FR2308000A1 (fr) * 1975-04-18 1976-11-12 Wabco Westinghouse Gmbh Vanne pilote manoeuvree a la main pour un appareil de commande hydraulique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1068098A1 (fr) * 1998-04-03 2001-01-17 Chapman/Leonard Studio Equipment, Inc. Soupape hydraulique de chariot de camera
EP1068098A4 (fr) * 1998-04-03 2006-05-03 Chapman Leonard Studio Equip Soupape hydraulique de chariot de camera
DE19949802A1 (de) * 1999-10-15 2001-04-19 Mannesmann Rexroth Ag Vorsteuergerät
US6932113B1 (en) 1999-10-15 2005-08-23 Mannesmann Rexroth Ag Pilot device

Also Published As

Publication number Publication date
EP0089447A3 (fr) 1983-12-14

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19851202

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MOR, PIETRO