CH480545A - Fluid control device without pressure for the pivoting of a shaft - Google Patents

Fluid control device without pressure for the pivoting of a shaft

Info

Publication number
CH480545A
CH480545A CH1368167A CH1368167A CH480545A CH 480545 A CH480545 A CH 480545A CH 1368167 A CH1368167 A CH 1368167A CH 1368167 A CH1368167 A CH 1368167A CH 480545 A CH480545 A CH 480545A
Authority
CH
Switzerland
Prior art keywords
shaft
pressure
pivoting
pallet
control device
Prior art date
Application number
CH1368167A
Other languages
French (fr)
Inventor
Chehab Daly
Original Assignee
Francois Beck S A
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 Francois Beck S A filed Critical Francois Beck S A
Priority to CH1368167A priority Critical patent/CH480545A/en
Publication of CH480545A publication Critical patent/CH480545A/en

Links

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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/12—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type

Description

Dispositif de commande ä fluide sans pression du pivotement d'un arbre La prMente invention a pour objet un dispositif de commande ä fluide saus pression du pivotement d'un arbre. Fluid control device without pressure for the pivoting of a shaft The subject of the present invention is a fluid control device without pressure for the pivoting of a shaft.

Ce dispositif peut, par exemple, trouver son emploi dans une machine ou appareil devant assurer un grand nombre de mouvements de pivotement ou de retourne- ment, tels qu'ils se pr6sentent surtout dans 1'automation. This device can, for example, find its use in a machine or apparatus having to ensure a large number of pivoting or reversal movements, such as they occur above all in automation.

Le dispositif selon les fig. 1 et 2 se compose d'un cylindre creux (1) ferme ä ses deux extr6mit6s par deux couvercles (la) et (1b) dans lequel se trouve une palette (2), fixee sur un arbre (3) rigoureusement centrg par rap- port au cylindre (1) et pris dans deux paliers (4) et (5). La palette est bien ajustee par rapport aux parois inte- rieures du cylindre et des couvercles. La palette decrit un arc de cercle autour de son axe dont 1'ouverture est ddterminee par une butee (6) fix6e ä 1'int6rieur du cylin- dre. Cette butde, qui a la longueur de la palette, sert de butee ä la palette, que celle-ci se d6place dans 1e sens de la fleche (a) ou de la fleche (b). Dans les faces de la but6e se trouvent deux rainures (7) et (8) permettant d'amener la pression dann la chambre (11) ou (12) ä tra vers 1e trou de raccordement (9) ou (10) et provoquant, de ce fait, 1e mouvement de la palette et de 1'arbre. 0n remarquera que, lorsque la palette est en butee, la pres- sion agit sur toute sa longueur, gräce aux rainures, per mettant d'avoir 1e couple maximum des 1e d6part. Par ailleurs, les rainures permettent 1'amen6e et 1'6vacuation rapide de la pression, favorisant ainsi un contact franc et sec de la palette et de la but6e. The device according to FIGS. 1 and 2 consists of a hollow cylinder (1) closed at both ends by two covers (la) and (1b) in which there is a pallet (2), fixed to a shaft (3) strictly centered with respect to port to the cylinder (1) and taken in two bearings (4) and (5). The paddle fits snugly against the inside walls of the cylinder and the covers. The pallet describes an arc of a circle around its axis, the opening of which is determined by a stop (6) fixed inside the cylinder. This butde, which has the length of the pallet, serves as a stop for the pallet, whether the latter moves in the direction of the arrow (a) or the arrow (b). In the faces of the but6e there are two grooves (7) and (8) allowing the pressure in the chamber (11) or (12) to be brought through to the connection hole (9) or (10) and causing, thereby, the movement of the vane and the shaft. It will be noted that, when the pallet is in abutment, the pressure acts over its entire length, thanks to the grooves, making it possible to have the maximum torque from the first start. Furthermore, the grooves allow the rapid 1'amen6e and 1'6évacuement pressure, thus promoting a frank and dry contact of the pallet and the but6e.

La palette n'a aucun joint d'etanch6ite et Beul 1'ajus- tement pricis de cette derniere par rapport aux parois limite les fuites ; ainsi les pertes par frottement sont mi- nimes et un tel dispositif fonctionne avec une pression d'air d'environ 0,5 atm. De plus, les fuites renforcent 1e couple parce que, ä 1'endroit oü elles se produisent, du cöt6 oppos6 ä la pression, elles cr6ent une d6pression dont 1'effet s'ajoute ä celui de la pression. The pallet has no seal and Beul the precise adjustment of the latter in relation to the walls limits leaks; thus friction losses are minimal and such a device operates with an air pressure of about 0.5 atm. In addition, leaks reinforce the torque because, where they occur, on the side opposite the pressure, they create a depression whose effect is added to that of the pressure.

Claims (1)

REVENDICATION Dispositif de commande ä fluide sous pression du pivotement d'un arbre, comprenant un cylindre ferm6 ä ses deux extr6mitds, dans lequel se trouve une palette solidaire de 1'arbre qui est centr6 parRTIID="0001.0271" WI="12" HE="4" LX="1678" LY="1936"> rapport au cylindre et guid6 dans deux paliers, un organe de but6e fix6 ä la paroi intdrieure de cylindre pour limiter la course angu- laire de la palette, caract6rise par une rainure longitudi- nale dont est pourvue chaque surface de 1'organe de butee sur lequel bute la palette, et par laquelle se fait 1'amenee ou 1'dvacuation du fluide de commande. CLAIM Device for controlling the pivoting of a shaft by pressurized fluid, comprising a cylinder closed at its two ends, in which there is a pallet integral with the shaft which is centered by RTIID="0001.0271" WI="12" HE= "4" LX="1678" LY="1936"> relative to the cylinder and guided in two bearings, a stop member fixed to the inner wall of the cylinder to limit the angular stroke of the pallet, characterized by a longitudinal groove - End with which each surface of the abutment organ on which the pallet abuts is provided, and through which the control fluid is brought or evacuated.
CH1368167A 1967-09-28 1967-09-28 Fluid control device without pressure for the pivoting of a shaft CH480545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH1368167A CH480545A (en) 1967-09-28 1967-09-28 Fluid control device without pressure for the pivoting of a shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1368167A CH480545A (en) 1967-09-28 1967-09-28 Fluid control device without pressure for the pivoting of a shaft

Publications (1)

Publication Number Publication Date
CH480545A true CH480545A (en) 1969-10-31

Family

ID=4394446

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1368167A CH480545A (en) 1967-09-28 1967-09-28 Fluid control device without pressure for the pivoting of a shaft

Country Status (1)

Country Link
CH (1) CH480545A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0580319A1 (en) * 1992-07-21 1994-01-26 The Walt Disney Company Hydraulic rotary actuators for robotic applications

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0580319A1 (en) * 1992-07-21 1994-01-26 The Walt Disney Company Hydraulic rotary actuators for robotic applications

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Legal Events

Date Code Title Description
PL Patent ceased