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1. WO2000039468 - HYDRAULIC ACTUATOR

Publication Number WO/2000/039468
Publication Date 06.07.2000
International Application No. PCT/IB1999/002005
International Filing Date 15.12.1999
Chapter 2 Demand Filed 26.06.2000
IPC
F15B 15/14 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
15Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
08characterised by the construction of the motor unit
14of the straight-cylinder type
F16C 11/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
11Pivots; Pivotal connections
04Pivotal connections
06Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
CPC
F15B 15/1457
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
15Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
08Characterised by the construction of the motor unit
14of the straight-cylinder type
1423Component parts; Constructional details
1457Piston rods
F15B 15/149
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
15Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
08Characterised by the construction of the motor unit
14of the straight-cylinder type
149Fluid interconnections, e.g. fluid connectors, passages
F16C 11/068
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
11Pivots; Pivotal connections
04Pivotal connections
06Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
068Special features relating to lubrication
Applicants
  • SULZER SOUTH AFRICA LIMITED [ZA/ZA]; 9 Gerhardus Street 1406 Elandsfontein, ZA (AllExceptUS)
  • CULVERWELL, Gregory, Adrian [ZA/ZA]; ZA (UsOnly)
Inventors
  • CULVERWELL, Gregory, Adrian; ZA
Agents
  • GILSON, David, Grant; Spoor and Fisher Rochester Place, 173 Rivonia Road Morningside, Sandton P.O. Box 41312 2024 Craighall, ZA
Priority Data
98/1185423.12.1998ZA
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) HYDRAULIC ACTUATOR
(FR) ACTIONNEUR HYDRAULIQUE
Abstract
(EN)
The invention concerns an hydraulically powered mechanism (10) of the kind having a piston assembly (12) which is arranged to be driven by hydraulic fluid acting on it in a working zone and an item of equipment (32) which is to be driven by the piston assembly. The piston assembly presents a face (24) which acts at an interface against a complemental face (28) on the item of equipment. A fluid passage (52) is provided to supply hydraulic fluid from the working zone to the interface (24, 28) for lubrication purposes. In a specific application of the invention it may be used in the rotary indexing mechanism of an hydraulically powered, typically a water-powered, rockdrill.
(FR)
L'invention concerne un mécanisme hydraulique (10) comprenant un ensemble piston (12) conçu pour être actionné par un fluide hydraulique agissant sur lui dans une zone de travail et une pièce d'équipement (32) destinée à être actionnée par l'ensemble piston. Ce dernier comporte une face (24) qui agit au niveau d'une interface contre une face complémentaire (28) de la pièce d'équipement. Par ailleurs, ce mécanisme comprend un passage pour fluide (52) permettant d'amener le fluide hydraulique de la zone de travail à l'interface (24, 28) à des fins de lubrification. Dans une application spécifique selon l'invention, ce mécanisme peut être utilisé dans un mécanisme à plateau diviseur d'une perforatrice hydraulique pour roches, généralement une perforatrice fonctionnant à l'eau.
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