ATE380940T1 - HYDRAULIC CYLINDER FOR USE IN A HYDRAULIC TOOL - Google Patents

HYDRAULIC CYLINDER FOR USE IN A HYDRAULIC TOOL

Info

Publication number
ATE380940T1
ATE380940T1 AT05075591T AT05075591T ATE380940T1 AT E380940 T1 ATE380940 T1 AT E380940T1 AT 05075591 T AT05075591 T AT 05075591T AT 05075591 T AT05075591 T AT 05075591T AT E380940 T1 ATE380940 T1 AT E380940T1
Authority
AT
Austria
Prior art keywords
piston
cylinder
piston rod
hydraulic
defining
Prior art date
Application number
AT05075591T
Other languages
German (de)
Inventor
Gier Gertrudis Maria Gerard De
Original Assignee
Demolition And Recycling Equip
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 Demolition And Recycling Equip filed Critical Demolition And Recycling Equip
Application granted granted Critical
Publication of ATE380940T1 publication Critical patent/ATE380940T1/en

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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/022—Systems essentially incorporating special features for controlling the speed or actuating force of an output member in which a rapid approach stroke is followed by a slower, high-force working stroke
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/965—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of metal-cutting or concrete-crushing implements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
    • 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
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F15B11/036—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of servomotors having a plurality of working chambers
    • 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
    • F15B15/1466—Hollow piston sliding over a stationary rod inside the cylinder
    • 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
    • F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
    • 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • 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
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
    • 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
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • F15B2211/31576—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and a single 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
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/329—Directional 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/625—Accumulators
    • 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
    • F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7055—Linear output members having more than two chambers

Abstract

The invention relates to a hydraulic cylinder, for use in a hydraulic tool, comprising a hollow cylinder body (8) accommodating a first piston, which first piston is composed of a hollow first piston rod (14), which extends from the cylinder body, and a first piston body (20) connected thereto, said cylinder body and said first piston body defining a first cylinder chamber (21) and said cylinder body, said first piston body and said first piston rod defining a second cylinder chamber (22), as well as a second piston accommodated in the hollow first piston rod, which second piston is composed of a second piston rod (26), which extends through the first piston body and which is connected to the cylinder body, and a second piston body (25) connected thereto, said first piston rod and said second piston body defining a third cylinder chamber (23) and said first piston rod, said second piston rod and said second piston body defining a fourth cylinder chamber (24), wherein the second piston rod is at least provided with a bore that terminates in the third cylinder chamber, and wherein the cylinder chambers can be connected to a first (P1) and a second supply line (P2), respectively, for extending and retracting the first piston rod.
AT05075591T 2004-03-25 2005-03-10 HYDRAULIC CYLINDER FOR USE IN A HYDRAULIC TOOL ATE380940T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1025806A NL1025806C2 (en) 2004-03-25 2004-03-25 Hydraulic cylinder, for example, for use with a hydraulic tool.

Publications (1)

Publication Number Publication Date
ATE380940T1 true ATE380940T1 (en) 2007-12-15

Family

ID=34859204

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05075591T ATE380940T1 (en) 2004-03-25 2005-03-10 HYDRAULIC CYLINDER FOR USE IN A HYDRAULIC TOOL

Country Status (7)

Country Link
EP (1) EP1580437B1 (en)
AT (1) ATE380940T1 (en)
DE (1) DE602005003696T2 (en)
DK (1) DK1580437T3 (en)
ES (1) ES2296060T3 (en)
NL (1) NL1025806C2 (en)
PL (1) PL1580437T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010001337A1 (en) * 2010-01-28 2011-08-18 Metso Paper, Inc. Arrangement for controlling the position of a device with a fluid pressure-driven piston-cylinder device
BR112013001493B1 (en) 2010-07-21 2021-01-19 Volvo Compact Equipment Sas backhoe excavator
DE102010033840A1 (en) 2010-08-10 2012-02-16 Alpha Fluid Hydrauliksysteme Müller GmbH Circuit arrangement for operating mechanically coupled, fluid-actuated displacement units, comprises fluid-operated, dual acting displacement units that are hydraulically directly connected to hydraulic supply port
US9003951B2 (en) * 2011-10-05 2015-04-14 Caterpillar Inc. Hydraulic system with bi-directional regeneration
CN102678654A (en) * 2012-06-02 2012-09-19 山西高行液压股份有限公司 Variable-speed oil cylinder system
DE102012020581A1 (en) * 2012-10-22 2014-04-24 Robert Bosch Gmbh Hydraulic circuit for a hydraulic axis and a hydraulic axis
NL2010256C2 (en) * 2013-02-06 2014-08-07 Hfx Res B V CYLINDER COMPOSITION.
JP6286216B2 (en) * 2014-01-31 2018-02-28 Ｋｙｂ株式会社 Work machine control system and low pressure selection circuit
EP3064782B1 (en) * 2015-03-06 2018-06-20 Otto Nussbaum GmbH & Co. KG Cylinder piston unit
DE102016205973A1 (en) * 2016-04-11 2017-10-12 Sms Group Gmbh hydraulic cylinders
DE102016124118B4 (en) * 2016-12-13 2021-12-09 Voith Patent Gmbh Hydraulic drive with rapid and load lift
NL2018276B1 (en) * 2017-02-01 2018-08-22 Demolition And Recycling Equipment B V Hydraulic cylinder, for example, for use with a hydraulic tool.
CN107630856B (en) * 2017-11-08 2023-11-28 安徽星马专用汽车有限公司 Sequential telescopic oil cylinder and crane
CN108115029A (en) * 2017-12-20 2018-06-05 马鞍山创诚中小企业服务中心有限公司 Numerical control press process for stamping
CN108127953A (en) * 2017-12-20 2018-06-08 马鞍山创诚中小企业服务中心有限公司 Numerical control press
CN107999594A (en) * 2017-12-20 2018-05-08 马鞍山创诚中小企业服务中心有限公司 Stroke accurately controls decompressor
US11131192B2 (en) 2018-02-01 2021-09-28 Vanderbilt University Cylinder actuator
CN108397440A (en) * 2018-04-11 2018-08-14 江阴市军炫智能装备有限公司 A kind of fast unit for medium-and-large-sized hydraulic pressure metal bits cuber
DE102020112884A1 (en) 2020-05-12 2021-11-18 Ewo Fluid Power Gmbh Double-acting hydraulic cylinder with redundant pressure chambers
NL2025765B1 (en) 2020-06-05 2022-01-28 Demolition And Recycling Equipment B V Hydraulic cylinder for example for use with a hydraulic tool.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021612B (en) 1955-09-15 1957-12-27 Rodi & Wienerberger Ag Stretchable link belt
GB893592A (en) * 1959-09-04 1962-04-11 Electro Hydraulics Ltd Control system for use with hydraulically or pneumatically operated jacks
US4833971A (en) * 1988-03-09 1989-05-30 Kubik Philip A Self-regulated hydraulic control system
DE4104856A1 (en) * 1991-02-16 1991-10-31 Krupp Maschinentechnik DRIVE DEVICE FOR A DEMOLITION TOOL
NL9301517A (en) * 1993-09-02 1995-04-03 Metholds Hertogenbosch Bv Device for breaking and / or cutting material.
DE10121612A1 (en) * 2001-05-04 2002-11-07 Bert Pohl Pressing cylinder for hydraulic presses comprises a cylinder housing having only one moving unit consisting of a piston and a piston rod, which is impinged upon by different pressure forces via fluid circuits

Also Published As

Publication number Publication date
EP1580437A1 (en) 2005-09-28
EP1580437B1 (en) 2007-12-12
ES2296060T3 (en) 2008-04-16
DE602005003696T2 (en) 2008-12-04
DK1580437T3 (en) 2008-04-07
DE602005003696D1 (en) 2008-01-24
PL1580437T3 (en) 2008-05-30
NL1025806C2 (en) 2005-09-27

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