EP2570678A1 - Pneumatischer Drehantrieb mit Innenschutz und Herstellungsverfahren dafür - Google Patents

Pneumatischer Drehantrieb mit Innenschutz und Herstellungsverfahren dafür Download PDF

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Publication number
EP2570678A1
EP2570678A1 EP11382293A EP11382293A EP2570678A1 EP 2570678 A1 EP2570678 A1 EP 2570678A1 EP 11382293 A EP11382293 A EP 11382293A EP 11382293 A EP11382293 A EP 11382293A EP 2570678 A1 EP2570678 A1 EP 2570678A1
Authority
EP
European Patent Office
Prior art keywords
actuator
plastic
pneumatic actuator
fibreglass
cylinder
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Withdrawn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
EP11382293A
Other languages
English (en)
French (fr)
Inventor
Jordi Chaves Garcia
Juan Miguel Chaves Garcia
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP11382293A priority Critical patent/EP2570678A1/de
Publication of EP2570678A1 publication Critical patent/EP2570678A1/de
Withdrawn legal-status Critical Current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
    • 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
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1428—Cylinders
    • 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
    • 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
    • F15B2215/00—Fluid-actuated devices for displacing a member from one position to another
    • F15B2215/30—Constructional details thereof
    • F15B2215/305—Constructional details thereof characterised by the use of special materials

Definitions

  • the object of the present invention is a pneumatic actuator with inside protection, as well as the manufacturing process thereof, understanding an actuator to be a device capable of transforming hydraulic, pneumatic or electrical energy into the activation of a process with the purpose of generating an effect on an automated process.
  • the present invention is characterized in that the actuator is protected inside the casing, avoiding its wear and tear, as well as the process whereby the reinforcement incorporated forms a structural part of the actuator. Therefore, the present invention falls within the scope of actuators, particularly pneumatic actuators and those manufactured in plastic or with fibreglass.
  • the object of the invention centres on plastic actuators with fibreglass, trying to resolve the problem of wear of the toric elements housed inside the actuator cylinder, for which a pneumatic actuator with inside protection has been developed such as that described below and is essentially included in claim one.
  • the object of the present invention is a pneumatic actuator with inside protection, designed for actuators made in plastic and particularly, although not in limiting manner, for those reinforced with fibreglass.
  • the reinforcement given to the actuators made in plastic consists of the disposal of an additional cylinder inside the channel of the actuator.
  • This cylinder will protect the torics from the wear they may undergo on being in contact with the fibreglass, in the case of having used fibreglass as a reinforcement material of the plastic when manufacturing the actuators, or it will give a greater structural resistance to the actuator if it were only manufactured with plastic, avoiding having to increase its thickness to give it greater structural resistance.
  • the inner surface of the actuator casing is coated and protected by an additional cylindrical structure of a material more resistant than that of the material used in manufacturing the cylinder casing.
  • the reinforcement cylinder is not an additional part added after manufacturing the actuator, instead it forms an integral part of the casing structure, forming a single body; to achieve this integrated combination the cylinder is introduced in the mould during the manufacturing process before injection of the plastic.
  • the additional protective cylinder may be of different materials: metal, such as stainless steel, plastic, which in a particular embodiment may be plastic extruded with fibreglass (the migration of fibreglass towards the outside would be avoided in the extrusion), it does not need machining and it can be of reduced thickness since the mechanical resistance must be exerted by the material the actuator casing consists of.
  • the client's new proposal consists of obtaining a pneumatic actuator of plastic material with fibreglass in its casing, the inner channel whereof is protected by an additional cylinder which forms part of the actuator body, since it has been added in the injection process of the plastic in the mould to obtain the actuator casing, and that this actuator does not need machining.
  • Figure 1 shows in perspective the casing (1) of a pneumatic actuator, wherein all construction details can be observed.
  • the actuator casing would be manufactured in plastic material reinforced with fibreglass which, during the machining process had migrated towards the outer walls.
  • a protective cylinder is disposed that avoids the direct contact of the torics with the migrated fibreglass.
  • Figure 2 shows the protective cylinder (2) which is housed inside the actuator casing, which will have dimensions and construction characteristics that make it suitable for the intended purpose.
  • This cylinder forms an integral or structural part of the casing, making the casing a single part although with two different materials, for which purpose, during the manufacturing process, before injection of the plastic material in the mould the protective cylinder (2) is disposed, for which reason once the plastic has been injected in the mould both materials form a single body.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
EP11382293A 2011-09-14 2011-09-14 Pneumatischer Drehantrieb mit Innenschutz und Herstellungsverfahren dafür Withdrawn EP2570678A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11382293A EP2570678A1 (de) 2011-09-14 2011-09-14 Pneumatischer Drehantrieb mit Innenschutz und Herstellungsverfahren dafür

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11382293A EP2570678A1 (de) 2011-09-14 2011-09-14 Pneumatischer Drehantrieb mit Innenschutz und Herstellungsverfahren dafür

Publications (1)

Publication Number Publication Date
EP2570678A1 true EP2570678A1 (de) 2013-03-20

Family

ID=44983473

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11382293A Withdrawn EP2570678A1 (de) 2011-09-14 2011-09-14 Pneumatischer Drehantrieb mit Innenschutz und Herstellungsverfahren dafür

Country Status (1)

Country Link
EP (1) EP2570678A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3286737A (en) * 1963-08-01 1966-11-22 Dowsmith Inc Wear-resistant article and method of making the same
US4545288A (en) * 1982-05-25 1985-10-08 Rodyne Limited Quarter turn actuators
US20060118194A1 (en) * 2003-03-26 2006-06-08 Wolfgang Mechler Cylindrical tube for a working cylinder, and method for producing the same
US20060255047A1 (en) * 2005-05-11 2006-11-16 Mitsunori Gotou Reinforcing structure of cylinder barrel
EP1847372A2 (de) * 2006-04-21 2007-10-24 LuK Lamellen und Kupplungsbau Beteiligungs KG Verfahren zur Herstellung von Zylindergehäusen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3286737A (en) * 1963-08-01 1966-11-22 Dowsmith Inc Wear-resistant article and method of making the same
US4545288A (en) * 1982-05-25 1985-10-08 Rodyne Limited Quarter turn actuators
US20060118194A1 (en) * 2003-03-26 2006-06-08 Wolfgang Mechler Cylindrical tube for a working cylinder, and method for producing the same
US20060255047A1 (en) * 2005-05-11 2006-11-16 Mitsunori Gotou Reinforcing structure of cylinder barrel
EP1847372A2 (de) * 2006-04-21 2007-10-24 LuK Lamellen und Kupplungsbau Beteiligungs KG Verfahren zur Herstellung von Zylindergehäusen

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