GB2006340A - Locking Device for Hydraulic Actuator - Google Patents

Locking Device for Hydraulic Actuator

Info

Publication number
GB2006340A
GB2006340A GB7838530A GB7838530A GB2006340A GB 2006340 A GB2006340 A GB 2006340A GB 7838530 A GB7838530 A GB 7838530A GB 7838530 A GB7838530 A GB 7838530A GB 2006340 A GB2006340 A GB 2006340A
Authority
GB
United Kingdom
Prior art keywords
ring
locking
rod
locking ring
contracting member
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Withdrawn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
GB7838530A
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
Priority claimed from US05/844,359 external-priority patent/US4185539A/en
Application filed by Individual filed Critical Individual
Publication of GB2006340A publication Critical patent/GB2006340A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
    • F16D1/09—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces
    • F16D1/093—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces using one or more elastic segmented conical rings forming at least one of the conical surfaces, the rings being expanded or contracted to effect clamping
    • F16D1/095—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces using one or more elastic segmented conical rings forming at least one of the conical surfaces, the rings being expanded or contracted to effect clamping with clamping effected by ring contraction only
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Actuator (AREA)
  • Clamps And Clips (AREA)

Abstract

A mechanical locking device for locking a rod (4) of a conventional hydraulic actuator, such as a hydraulic cylinder or a rotary actuator. The device comprises a radially contractible locking ring (11) having a cylindrical inner surface for gripping the rod when the locking-ring is contracted and an outer surface which is axially inclined, means (10) for positively securing the locking ring (11) around the rod (4) in a position axially fixed in at least one direction with respect to the actuator housing (1), a ring-contracting member (12) around the locking ring (11) and having an inner surface which is axially inclined at the same angle as the outer surface of the locking ring (11) for engaging that surface, and means (9, 26) for applying an axial force to the ring-contracting member (12) in the direction of the inner surface axial inclination to cause the ring-contracting member (12) to slide axially on the locking ring (11) thereby causing the locking ring (11) to contract and grip the rod (4). <IMAGE>
GB7838530A 1977-10-21 1978-09-28 Locking Device for Hydraulic Actuator Withdrawn GB2006340A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/844,359 US4185539A (en) 1977-03-07 1977-10-21 Locking device for hydraulic actuator

Publications (1)

Publication Number Publication Date
GB2006340A true GB2006340A (en) 1979-05-02

Family

ID=25292501

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7838530A Withdrawn GB2006340A (en) 1977-10-21 1978-09-28 Locking Device for Hydraulic Actuator

Country Status (5)

Country Link
CA (1) CA1109366A (en)
DE (1) DE2837676A1 (en)
FR (1) FR2406740A1 (en)
GB (1) GB2006340A (en)
IT (1) IT1107471B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512890A1 (en) * 1981-09-12 1983-03-18 Festo Maschf Stoll G PRESSURIZED FLUID ACTUATED VERINO
EP0103555A1 (en) * 1982-08-20 1984-03-21 Atlas Copco Aktiebolag Piston locking device
GB2152585A (en) * 1984-01-06 1985-08-07 Michael Hung Locking hydraulic jacks
FR2571451A1 (en) * 1984-10-05 1986-04-11 Outillage Air Comprime DEVICE FOR LOCKING A MOBILE ROD IN A BODY
US11235456B2 (en) 2018-09-05 2022-02-01 M-Robot OHG Securing device and method for operating a securing device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118449A1 (en) * 1981-05-09 1982-12-02 Sitema Gesellschaft für Sicherheitstechnik und Maschinenbau mbH, 7500 Karlsruhe "CLAMPING DEVICE"
DE3317487A1 (en) * 1983-05-13 1984-11-15 Gabrie, Duje Welter, 5170 Jülich Positive locking system for pistons of pressure-medium cylinders
DE3510643A1 (en) * 1985-03-23 1986-09-25 Sitema Gesellschaft für Sicherheitstechnik und Maschinenbau mbH, 7500 Karlsruhe Clamping head
DE3521298A1 (en) * 1985-06-13 1986-12-18 Applied Power, Inc., Milwaukee, Wis. Clamping device
DE3521267A1 (en) * 1985-06-13 1986-12-18 Applied Power, Inc., Milwaukee, Wis. Multiple-coupling arrangement
EP0273701A3 (en) * 1987-01-03 1989-12-27 LUCAS INDUSTRIES public limited company Improvements in hydraulic piston and cylinder assemblies
DE3707046A1 (en) * 1987-03-05 1988-09-15 Haenchen Kg Herbert Clamping device for rods

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455439A (en) * 1945-02-17 1948-12-07 Herbert E Page Fluid jack with ram locking means
US2845902A (en) * 1955-01-07 1958-08-05 Borg Warner Self-locking fluid motor
DE1804857B2 (en) * 1968-10-24 1971-11-25 Hänchen, Siegfried, 7304 Ruit DEVICE FOR CLAMPING AN AXIALLY MOVABLE PISTON ROD
CH496510A (en) * 1969-08-07 1970-09-30 Charmilles Sa Ateliers Device for controlling the movements of an electrode in an electro-erosion machining machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512890A1 (en) * 1981-09-12 1983-03-18 Festo Maschf Stoll G PRESSURIZED FLUID ACTUATED VERINO
DE3136311A1 (en) * 1981-09-12 1983-04-21 Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen "PRESSURE-OPERATED WORKING CYLINDER"
US4537113A (en) * 1981-09-12 1985-08-27 Kurt Stoll Braking device for a fluid power actuator
EP0103555A1 (en) * 1982-08-20 1984-03-21 Atlas Copco Aktiebolag Piston locking device
GB2152585A (en) * 1984-01-06 1985-08-07 Michael Hung Locking hydraulic jacks
FR2571451A1 (en) * 1984-10-05 1986-04-11 Outillage Air Comprime DEVICE FOR LOCKING A MOBILE ROD IN A BODY
US11235456B2 (en) 2018-09-05 2022-02-01 M-Robot OHG Securing device and method for operating a securing device

Also Published As

Publication number Publication date
IT1107471B (en) 1985-11-25
IT7851297A0 (en) 1978-09-28
DE2837676A1 (en) 1979-04-26
CA1109366A (en) 1981-09-22
FR2406740A1 (en) 1979-05-18

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)