EP0105246A1 - Dispositif d'entraînement et de guidage avec un vérin et un élément de transmission - Google Patents

Dispositif d'entraînement et de guidage avec un vérin et un élément de transmission Download PDF

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Publication number
EP0105246A1
EP0105246A1 EP83109150A EP83109150A EP0105246A1 EP 0105246 A1 EP0105246 A1 EP 0105246A1 EP 83109150 A EP83109150 A EP 83109150A EP 83109150 A EP83109150 A EP 83109150A EP 0105246 A1 EP0105246 A1 EP 0105246A1
Authority
EP
European Patent Office
Prior art keywords
transmission element
piston rod
cylinder
lifting cylinder
longitudinal groove
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.)
Granted
Application number
EP83109150A
Other languages
German (de)
English (en)
Other versions
EP0105246B1 (fr
Inventor
Arthur Fakrikian
Jacky Capra
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.)
MOULGRAVE S.A.
Original Assignee
Moulgrave SA
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 Moulgrave SA filed Critical Moulgrave SA
Priority to AT83109150T priority Critical patent/ATE26747T1/de
Publication of EP0105246A1 publication Critical patent/EP0105246A1/fr
Application granted granted Critical
Publication of EP0105246B1 publication Critical patent/EP0105246B1/fr
Expired 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
    • F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
    • F15B15/065—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement the motor being of the rack-and-pinion type
    • 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
    • F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member

Definitions

  • the invention relates to a drive and guide device with a lifting cylinder and a transmission element.
  • the invention has for its object to remedy these disadvantages and to provide a device that works satisfactorily and has a significantly smaller footprint compared to known devices.
  • the body of the hydraulic or pneumatic cylinder has at least one longitudinal groove on its outside, which is suitable for at least partially forming a guideway, and, on the other hand, at least one transmission element, such as a toothed rack, on the piston rod of the cylinder is coupled and is slidably mounted parallel to the piston rod in the guideway.
  • the outer side surface of the body of the lifting cylinder has a polygonal cross section and each side surface is equipped with a longitudinal groove which is suitable for serving as a guide element for a transmission element and both for its positioning and for attachment to the mechanical unit, for which it is intended, or to contribute advantageously on any other support.
  • each longitudinal groove of the body of the lifting cylinder which is to form a slide, is partially closed by holding rails which are fastened along the edges and form two longitudinally extending holding lips for the transmission element.
  • a transmission member may be coupled to either end of the piston rod.
  • the lift cylinder can also be a type with two pistons, the movements of which are opposite.
  • the transmission element is designed as a toothed rack which is connected to a pinion.
  • the inlet and outlet openings of the pressurized fluid, which supplies the lifting cylinder are arranged on one side of the body, the skilful selection of the longitudinal groove or the longitudinal grooves which are to serve as a guideway for the transmission element, it allows the openings to be oriented in the desired direction.
  • the device according to the invention has a hydraulic cylinder 2 and a transmission element, which in the exemplary embodiment shown consists of a toothed rack 3 which is coupled to the protruding end 5a of the piston rod 5 with the aid of a bracket 4.
  • the body 6 of the hydraulic cylinder 2 has a cross section with a substantially square outer profile and has a longitudinal groove 7 on each of the four side surfaces, which is suitable for producing a guide track for guiding the rack 3.
  • a single rack 3 is provided, and Fig. 2 shows in more detail that the longitudinal groove 7, which is shown in Fig. 2 to the left and to b e-true as a guideway for the Zannstange 3 to serve, is partially closed by two holding rails 8, which are fixed along the edges of the longitudinal groove 7 with the help of screws 9 so that they form 7 holding lips along ier longitudinal groove, which on this Limit a slideway with a T-shaped cross section, which is suitable for holding the rack 3 with a complementary cross section.
  • the inlet openings and outlet openings 11 for the pressurized medium for supplying the hydraulic cylinder 2 are both on the same side of the body 6.
  • This arrangement combined with the presence of the four longitudinal grooves 7 allows the user to to orient the openings 11 as desired since he can select one of the four longitudinal grooves 7 in order to form the guide path for the toothed rack 3, this selection naturally being made depending on the application of the device.
  • the rack 3 and the piston rod 5 of the hydraulic cylinder 2 are not aligned with one another but are arranged parallel to one another and that the guide elements for the rack 3 are provided directly in the body 6 of the hydraulic cylinder 2.
  • the device is very compact compared to other devices of this type and is further characterized by significantly lower manufacturing costs, since the body 6 of the hydraulic cylinder 2 participates to a considerable extent in the guidance of the rack 3.
  • FIG. 3 and 4 differs from the embodiment shown in Figures 1 and 2 in that two racks 3 are coupled to the same end of the piston rod 5 of the hydraulic cylinder 2 by a double bracket 4a, the longitudinal grooves 7, the are selected as guideways, facing each other the sides of the body 6 of the hydraulic cylinder 2.
  • the hydraulic cylinder 2a has a continuous piston rod 5a and each of the two racks 3, which are guided in guideways in the longitudinal grooves 7 on two opposite sides of the body 6, is through a bracket 4 with the end of the piston rod 5a connected.
  • the hydraulic cylinder 2b has two piston rods 5b with pistons which are independent of one another and which can be moved in opposite directions.
  • Each piston rod 5b is coupled by means of a bracket 4 to one of the two racks 3, the movements of which are in opposite directions.
  • FIGS 7 and 8 clearly show the reduction in space required in the device according to the invention.
  • the toothed rack 3 is aligned at the end of the piston rod 5 of the hydraulic cylinder 2, the body 6 of which is attached to the mechanical unit 12, for which the device is intended, with the aid of a bracket 13 and struts 14 are attached which connect the bracket 13 to the mechanical unit 12.
  • the length of the struts 14 is determined by the stroke length of the piston rod 5 of the hydraulic cylinder 2 and, accordingly, the rack 3, the cross section of the spreaders 14 having to be larger as the distance increases.
  • the mechanical unit 12 is an industrial form in which pinions 12a have to be set in rotation by a linear movement of the piston rod 5 of the hydraulic cylinder 2.
  • FIGS. 7 and 8 clearly shows the reduction in the space requirement which results when using the device according to the invention, and the reduction in the production price as a result of the elimination of essential mechanical elements.
  • the device according to the invention can be equipped with detector devices which determine the position of the piston rod of the hydraulic cylinder or its end position. Furthermore, devices for speed control and any other auxiliary devices of this type can also be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Burglar Alarm Systems (AREA)
  • Vehicle Body Suspensions (AREA)
EP83109150A 1982-09-30 1983-09-16 Dispositif d'entraînement et de guidage avec un vérin et un élément de transmission Expired EP0105246B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83109150T ATE26747T1 (de) 1982-09-30 1983-09-16 Antriebs- und fuehrungsvorrichtung mit einem hubzylinder und einem uebertragungselement.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8216707A FR2533978B1 (fr) 1982-09-30 1982-09-30 Dispositif de transmission et de guidage combinant un verin et un element de transmission
FR8216707 1982-09-30

Publications (2)

Publication Number Publication Date
EP0105246A1 true EP0105246A1 (fr) 1984-04-11
EP0105246B1 EP0105246B1 (fr) 1987-04-22

Family

ID=9278001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83109150A Expired EP0105246B1 (fr) 1982-09-30 1983-09-16 Dispositif d'entraînement et de guidage avec un vérin et un élément de transmission

Country Status (4)

Country Link
EP (1) EP0105246B1 (fr)
AT (1) ATE26747T1 (fr)
DE (1) DE3371109D1 (fr)
FR (1) FR2533978B1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2561560A1 (fr) * 1984-03-24 1985-09-27 Festo Kg Dispositif d'avance et/ou d'entrainement du type coulisseau
DE3424515A1 (de) * 1984-07-04 1986-01-09 Gottfried 5905 Freudenberg Bitterlich Pneumatischer antrieb
DE3535704A1 (de) * 1985-10-05 1987-04-09 Festo Kg Kolben-zylinder-anordnung
EP0283656A1 (fr) 1987-03-20 1988-09-28 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Unité de vérin axiale

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB790771A (en) * 1954-10-18 1958-02-19 E P Barrus Concessionaires Ltd Improvements in and relating to hydraulic rams or jacks
FR1351795A (fr) * 1963-03-19 1964-02-07 Tschudin & Heid Ag Pupitre de commande à air comprimé
US3772966A (en) * 1972-06-28 1973-11-20 C Mills Fluid torque operator
GB1394281A (en) * 1972-05-26 1975-05-14 Clarke Chapman Ltd Tool positioning and guiding equipment with hydraulic piston- and-cylinder device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB790771A (en) * 1954-10-18 1958-02-19 E P Barrus Concessionaires Ltd Improvements in and relating to hydraulic rams or jacks
FR1351795A (fr) * 1963-03-19 1964-02-07 Tschudin & Heid Ag Pupitre de commande à air comprimé
GB1394281A (en) * 1972-05-26 1975-05-14 Clarke Chapman Ltd Tool positioning and guiding equipment with hydraulic piston- and-cylinder device
US3772966A (en) * 1972-06-28 1973-11-20 C Mills Fluid torque operator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2561560A1 (fr) * 1984-03-24 1985-09-27 Festo Kg Dispositif d'avance et/ou d'entrainement du type coulisseau
DE3424515A1 (de) * 1984-07-04 1986-01-09 Gottfried 5905 Freudenberg Bitterlich Pneumatischer antrieb
DE3535704A1 (de) * 1985-10-05 1987-04-09 Festo Kg Kolben-zylinder-anordnung
EP0283656A1 (fr) 1987-03-20 1988-09-28 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Unité de vérin axiale

Also Published As

Publication number Publication date
EP0105246B1 (fr) 1987-04-22
FR2533978A1 (fr) 1984-04-06
DE3371109D1 (en) 1987-05-27
FR2533978B1 (fr) 1987-01-30
ATE26747T1 (de) 1987-05-15

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