DE502004002755D1 - lock cylinders - Google Patents

lock cylinders

Info

Publication number
DE502004002755D1
DE502004002755D1 DE502004002755T DE502004002755T DE502004002755D1 DE 502004002755 D1 DE502004002755 D1 DE 502004002755D1 DE 502004002755 T DE502004002755 T DE 502004002755T DE 502004002755 T DE502004002755 T DE 502004002755T DE 502004002755 D1 DE502004002755 D1 DE 502004002755D1
Authority
DE
Germany
Prior art keywords
cylinder
spindle
lock cylinders
axial
bearing
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.)
Active
Application number
DE502004002755T
Other languages
German (de)
Inventor
Adolf Tretsch
Michael Weis
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.)
Neumeister Hydraulik GmbH
Original Assignee
Neumeister Hydraulik 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 Neumeister Hydraulik GmbH filed Critical Neumeister Hydraulik GmbH
Publication of DE502004002755D1 publication Critical patent/DE502004002755D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/26—Locking mechanisms
    • F15B15/262—Locking mechanisms using friction, e.g. brake pads
    • F15B15/264—Screw mechanisms attached to the piston
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/003—Systems with load-holding valves
    • 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
    • F15B15/26—Locking mechanisms
    • F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
    • 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
    • F15B2015/1495—Characterised by the construction of the motor unit of the straight-cylinder type with screw mechanism attached to the piston
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3052—Shuttle valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50545—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using braking valves to maintain a back pressure
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
    • F15B2211/50581—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using counterbalance valves
    • F15B2211/5059—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using counterbalance valves using double counterbalance valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/51—Pressure control characterised by the positions of the valve element
    • F15B2211/513—Pressure control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5158—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and an output member
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/52—Pressure control characterised by the type of actuation
    • F15B2211/528—Pressure control characterised by the type of actuation actuated by fluid pressure
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/72—Output members, e.g. hydraulic motors or cylinders or control therefor having locking means

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Lock And Its Accessories (AREA)
  • Fluid-Damping Devices (AREA)
  • Chairs Characterized By Structure (AREA)
  • Braking Arrangements (AREA)
  • Support Of The Bearing (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Pens And Brushes (AREA)

Abstract

The locking cylinder unit (20) has a spindle (35) which is axially movable relative to the cylinder (21) and fixed to a support body other than the second axial bearing, which takes the axial forces acting on the spindle. The second axial bearing has a rolling bearing movable in the direction of the longitudinal axis (29) of the cylinder, which is sprung by a spring acting in the first direction (28).
DE502004002755T 2003-12-04 2004-10-21 lock cylinders Active DE502004002755D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10356598A DE10356598B3 (en) 2003-12-04 2003-12-04 Locking cylinder for hydraulically actuated component has spindle axially movable relative to cylinder and fixed to support body

Publications (1)

Publication Number Publication Date
DE502004002755D1 true DE502004002755D1 (en) 2007-03-15

Family

ID=34442435

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10356598A Expired - Fee Related DE10356598B3 (en) 2003-12-04 2003-12-04 Locking cylinder for hydraulically actuated component has spindle axially movable relative to cylinder and fixed to support body
DE502004002755T Active DE502004002755D1 (en) 2003-12-04 2004-10-21 lock cylinders

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE10356598A Expired - Fee Related DE10356598B3 (en) 2003-12-04 2003-12-04 Locking cylinder for hydraulically actuated component has spindle axially movable relative to cylinder and fixed to support body

Country Status (9)

Country Link
EP (1) EP1538344B1 (en)
AT (1) ATE352722T1 (en)
CY (1) CY1106492T1 (en)
DE (2) DE10356598B3 (en)
DK (1) DK1538344T3 (en)
ES (1) ES2280876T3 (en)
PL (1) PL1538344T3 (en)
PT (1) PT1538344E (en)
SI (1) SI1538344T1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005016090B4 (en) * 2005-04-08 2007-02-22 Neumeister Hydraulik Gmbh Single acting locking cylinder
JP2009544908A (en) 2006-07-25 2009-12-17 アロース ハイドラウリク ゲーエムベーハー Hydraulic control system
DE102006034864B4 (en) * 2006-07-25 2009-07-30 Aros Hydraulik Gmbh Control system for a hydraulic system
DE102007024736B3 (en) 2007-05-25 2008-06-12 Neumeister Hydraulik Gmbh Locking cylinder with fluidic slide bearing has supporting body as supporting and bearing body with supporting and bearing surface and counter supporting and bearing surface of second axial bearing in form of fluidic slide bearing
CN104088853B (en) * 2014-06-25 2016-08-17 长治清华机械厂 Hydraulic cylinder elastic card claw retractably enclosed automatic locking mechanism
DE102016119251A1 (en) * 2016-10-10 2018-04-12 Fbr Facondrehteile Gmbh Hydromechanical locking cylinder and hydraulic control system for its operation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534985A3 (en) * 1982-10-23 1984-04-27 Messerschmitt Boelkow Blohm Jack with improved locking
JPH08303410A (en) * 1995-04-27 1996-11-19 Hino Motors Ltd Fluid pressure cylinder
AT4094U1 (en) * 1999-12-07 2001-01-25 Weber Hydraulik Gmbh LINEAR ACTUATOR
ITTO20011066A1 (en) * 2001-11-13 2002-02-13 Rolfo Spa LINEAR ACTUATOR WITH INTERNAL MECHANICAL LOCKING.

Also Published As

Publication number Publication date
DE10356598B3 (en) 2005-06-02
ATE352722T1 (en) 2007-02-15
ES2280876T3 (en) 2007-09-16
PL1538344T3 (en) 2007-06-29
DK1538344T3 (en) 2007-06-04
SI1538344T1 (en) 2007-04-30
EP1538344B1 (en) 2007-01-24
EP1538344A2 (en) 2005-06-08
PT1538344E (en) 2007-05-31
CY1106492T1 (en) 2012-01-25
EP1538344A3 (en) 2005-08-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition