EP0979952A2 - Vérin rotatif, surtout vérin rotatif pneumatique - Google Patents

Vérin rotatif, surtout vérin rotatif pneumatique Download PDF

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Publication number
EP0979952A2
EP0979952A2 EP99112430A EP99112430A EP0979952A2 EP 0979952 A2 EP0979952 A2 EP 0979952A2 EP 99112430 A EP99112430 A EP 99112430A EP 99112430 A EP99112430 A EP 99112430A EP 0979952 A2 EP0979952 A2 EP 0979952A2
Authority
EP
European Patent Office
Prior art keywords
piston
housing
rotary drive
housing cover
guide
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Withdrawn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
EP99112430A
Other languages
German (de)
English (en)
Other versions
EP0979952A3 (fr
Inventor
Wolfgang Dipl.-Ing. Bräckelmann
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.)
SPX Flow Technology Rosista GmbH
Original Assignee
APV Rosista GmbH
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 APV Rosista GmbH filed Critical APV Rosista GmbH
Publication of EP0979952A2 publication Critical patent/EP0979952A2/fr
Publication of EP0979952A3 publication Critical patent/EP0979952A3/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Withdrawn legal-status Critical Current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
    • 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
    • F15B15/068—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 helical 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
    • F15B15/08—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
    • F15B15/1438—Cylinder to end cap assemblies
    • 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
    • F15B15/1476—Special return means
    • 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
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2807—Position switches, i.e. means for sensing of discrete positions only, e.g. limit switches

Definitions

  • the invention relates to a rotary drive, in particular pneumatic rotary actuator, with a through a housing cover sealed case, and one inside the Housing against the action of one or more spring elements Slidably mounted pistons, with one in the housing cover rotatably mounted shaft, which at least within the Housing designed as a spindle shaft with an external thread is, the spindle shaft in one in the piston arranged spindle nut engages.
  • a rotary drive in particular pneumatic rotary actuator, with a through a housing cover sealed case, and one inside the Housing against the action of one or more spring elements Slidably mounted pistons, with one in the housing cover rotatably mounted shaft, which at least within the Housing designed as a spindle shaft with an external thread is, the spindle shaft in one in the piston arranged spindle nut engages.
  • Such rotary drives are used for example in valve technology Control of closing elements such as valve plates or the like used.
  • the housing and piston are regularly cylindrical educated.
  • Such a rotary drive has on the face
  • the invention has for its object a rotary drive to create the embodiment described above, the is simple and functional, and in terms of maintenance Regarding all requirements.
  • the independent meaning comes, it is provided that the piston outside at least one extending in the direction of movement Has guide recess and that on the housing cover in guide segment engaging the guide recess of the piston is arranged, the guide segment itself guide slot extending in the direction of movement of the piston has, in which an almost orthogonal on the piston arranged to the direction of movement of the piston Safety pin engages or vice versa.
  • This will in addition to perfect guidance of the piston in the housing in a particularly simple and functional manner a connection between the housing cover and the piston realized. In particular, despite such a connection a sufficiently free movement of the piston relative to Housing and housing cover possible.
  • the length of the Elongated hole at least the maximum piston stroke plus the Diameter of the locking pins. This ensures that the piston move freely within the housing can without him or the locking pins to the Butt ends of the elongated holes of the guide segments.
  • Pen query elements are arranged on the housing in the vicinity of the elongated guide hole.
  • Pen query elements means electrical engineering components that are non-contact Information about the position of the locking pin can deliver, and thus on the position of the Piston.
  • such a pen query element can be used at the longitudinally outer ends of the Elongated hole arranged so that information about it can be electronically recorded whether the piston in one of the two extreme positions. You can the pen query elements are designed as proximity initiators his.
  • the invention further provides that the housing and the Housing cover like the piston are made of plastic.
  • This has the compared to the known solutions made of steel Advantage that the parts are easy and cheap to manufacture leave and are much lighter. It understands themselves that the spring centering pins formed on the housing cover as well as the plastic guide segments are made.
  • the spindle nut of the piston is also out Plastic trained.
  • the shaft is made of steel and the external thread as a plastic thread on the shaft molded, e.g. B. molded. It is also provided that the locking pins are made of steel.
  • a pneumatic, i.e. H. compressed air powered Rotary drive 1 shown.
  • This rotary drive 1 has a housing closed by a housing cover 2 3 on.
  • the housing 3 is of cylindrical symmetry. Inside the case is against the action of several Spring elements 4 a piston 5 slidably mounted.
  • a shaft 6 is rotatably mounted inside the housing 3 as a spindle shaft 7 with a External thread 8 is formed.
  • the external thread 8 of the Spindle shaft 7 engages in a spindle nut 9, which is arranged in the piston 5.
  • the housing 3 has a compressed air supply 10 at the end. Compressed air flowing into the housing 3 presses the piston 5 down along its longitudinal axis.
  • the housing 3 has an inner circumferential groove 13 on, in which a snap ring 14 is arranged, over the the housing cover 2 is detachably fixed to the housing 3.
  • the spring elements 4 are designed as coil springs.
  • Fig. 1 shows that in the embodiment six recesses 16 are provided in the piston 5, in which six over predetermined peripheral areas of the housing cover 2 distributed spring elements 4 and spring centering pins 15 intervene.
  • Fig. 1 shows that the Piston 5 on the outside two extending in the direction of movement Has guide recesses 17. 1 is to see that on the housing cover 2 two in the guide recesses 17 of the piston 5 engaging guide segments 18 are arranged.
  • each of the guide segments 18 engages on the piston 5 arranged orthogonally to the direction of movement of the piston 5 Locking pin 20 a.
  • the length of the Guide slot 19 the maximum piston stroke plus the Locking pin diameter 20.
  • pin interrogation elements 21 are arranged. These are in the exemplary embodiment as proximity initiators educated. It is such a pen query element 21 in the area of the upper or lower end of the elongated guide hole 19 arranged.
  • Housing 3 and housing cover 2 are made of plastic like the piston 5.
  • the wave 6 is made of steel
  • the external thread 8 of the Spindle shaft 7 is designed as a plastic thread and on the shaft 6 is formed.
  • the locking pins 20 are off Made of steel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Valve Device For Special Equipments (AREA)
EP99112430A 1998-08-13 1999-06-30 Vérin rotatif, surtout vérin rotatif pneumatique Withdrawn EP0979952A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29814551U 1998-08-13
DE29814551U DE29814551U1 (de) 1998-08-13 1998-08-13 Drehantrieb, insbesondere pneumatischer Drehantrieb

Publications (2)

Publication Number Publication Date
EP0979952A2 true EP0979952A2 (fr) 2000-02-16
EP0979952A3 EP0979952A3 (fr) 2000-03-22

Family

ID=8061264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99112430A Withdrawn EP0979952A3 (fr) 1998-08-13 1999-06-30 Vérin rotatif, surtout vérin rotatif pneumatique

Country Status (3)

Country Link
EP (1) EP0979952A3 (fr)
CN (1) CN1245269A (fr)
DE (1) DE29814551U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010002621A1 (de) * 2010-03-05 2011-09-08 Krones Ag Aktor
CN103115035A (zh) * 2013-02-28 2013-05-22 无锡气动技术研究所有限公司 循环式回转气缸

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19950582B9 (de) * 1999-10-21 2004-09-09 Tuchenhagen Gmbh Betätigungsvorrichtung für ein drehbares Verschlussteil eines Ventils
CN102852878B (zh) * 2011-06-29 2015-09-02 基准精密工业（惠州）有限公司 旋转下压气缸
DE102016203870A1 (de) * 2016-03-09 2017-09-14 Evoguard Gmbh Drehantrieb und Getränkeabfüllanlage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU45404A1 (fr) * 1964-02-12 1964-04-13
NL7018534A (fr) * 1970-12-18 1972-06-20
DE3725558C1 (en) 1987-08-01 1989-01-19 Hans Holland Gmbh, 6228 Eltville, De Hydraulic or pneumatic actuator - has constant sealing gap between piston and housing
DE29703710U1 (de) 1997-02-28 1997-06-26 Wilhelm Guth GmbH & Co KG, 76829 Landau Drehantrieb

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010002621A1 (de) * 2010-03-05 2011-09-08 Krones Ag Aktor
US8667887B2 (en) 2010-03-05 2014-03-11 Krones Ag Actuator for a closing element of a valve
CN103115035A (zh) * 2013-02-28 2013-05-22 无锡气动技术研究所有限公司 循环式回转气缸
CN103115035B (zh) * 2013-02-28 2015-04-22 无锡气动技术研究所有限公司 循环式回转气缸

Also Published As

Publication number Publication date
EP0979952A3 (fr) 2000-03-22
CN1245269A (zh) 2000-02-23
DE29814551U1 (de) 1998-11-12

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