SE424664B - Anordning vid grevmaskin for att begrensa rorelsehastigheten hos arbetshydraulens kolv vid endlege - Google Patents

Anordning vid grevmaskin for att begrensa rorelsehastigheten hos arbetshydraulens kolv vid endlege

Info

Publication number
SE424664B
SE424664B SE7900014A SE7900014A SE424664B SE 424664 B SE424664 B SE 424664B SE 7900014 A SE7900014 A SE 7900014A SE 7900014 A SE7900014 A SE 7900014A SE 424664 B SE424664 B SE 424664B
Authority
SE
Sweden
Prior art keywords
wings
screw
reaming
cutting edge
groove
Prior art date
Application number
SE7900014A
Other languages
English (en)
Swedish (sv)
Other versions
SE7900014L (sv
Inventor
B R Olofsson
Original Assignee
Akermans Verkstad Ab
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 Akermans Verkstad Ab filed Critical Akermans Verkstad Ab
Priority to SE7900014A priority Critical patent/SE424664B/sv
Priority to EP79850113A priority patent/EP0016896A3/fr
Priority to NO794278A priority patent/NO151017C/no
Priority to US06/108,084 priority patent/US4350078A/en
Priority to FI800009A priority patent/FI66466C/fi
Publication of SE7900014L publication Critical patent/SE7900014L/xx
Publication of SE424664B publication Critical patent/SE424664B/sv

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
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
    • F15B11/046—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed depending on the position of the working member
    • F15B11/048—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed depending on the position of the working member with deceleration control
    • 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
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/321—Directional control characterised by the type of actuation mechanically
    • F15B2211/325—Directional control characterised by the type of actuation mechanically actuated by an output member of the circuit
    • 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
    • F15B2211/30—Directional control
    • F15B2211/35—Directional control combined with flow control
    • 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
    • F15B2211/755—Control of acceleration or deceleration of the output member

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
  • Drilling Tools (AREA)
  • Soil Working Implements (AREA)
SE7900014A 1979-01-02 1979-01-02 Anordning vid grevmaskin for att begrensa rorelsehastigheten hos arbetshydraulens kolv vid endlege SE424664B (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE7900014A SE424664B (sv) 1979-01-02 1979-01-02 Anordning vid grevmaskin for att begrensa rorelsehastigheten hos arbetshydraulens kolv vid endlege
EP79850113A EP0016896A3 (fr) 1979-01-02 1979-12-20 Dispositif pour décélérer la vitesse d'un piston hydraulique à ses positions extrêmes
NO794278A NO151017C (no) 1979-01-02 1979-12-27 Innretning til aa begrense hastigheten av et hydraulisk stempel i endestillingene
US06/108,084 US4350078A (en) 1979-01-02 1979-12-28 Apparatus for restricting the velocity of a hydraulic piston in its end positions
FI800009A FI66466C (fi) 1979-01-02 1980-01-02 Anordning foer att begraensa en hydraulkolvs hastighet i aendlaegena.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7900014A SE424664B (sv) 1979-01-02 1979-01-02 Anordning vid grevmaskin for att begrensa rorelsehastigheten hos arbetshydraulens kolv vid endlege

Publications (2)

Publication Number Publication Date
SE7900014L SE7900014L (sv) 1980-07-03
SE424664B true SE424664B (sv) 1982-08-02

Family

ID=20336904

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7900014A SE424664B (sv) 1979-01-02 1979-01-02 Anordning vid grevmaskin for att begrensa rorelsehastigheten hos arbetshydraulens kolv vid endlege

Country Status (5)

Country Link
US (1) US4350078A (fr)
EP (1) EP0016896A3 (fr)
FI (1) FI66466C (fr)
NO (1) NO151017C (fr)
SE (1) SE424664B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4571941A (en) * 1980-12-27 1986-02-25 Hitachi Construction Machinery Co, Ltd. Hydraulic power system
JPS57110855A (en) * 1980-12-27 1982-07-09 Hitachi Constr Mach Co Ltd Controller of oil hydraulic device
US4610193A (en) * 1983-10-26 1986-09-09 Deere & Company Load control system
US4596517A (en) * 1985-01-29 1986-06-24 Poclain Pressurized fluid supply circuit comprising a variable displacement pump
US4730543A (en) * 1985-06-17 1988-03-15 Hi-Ranger, Inc. Closed center hydraulic valve control system for aerial lift
US4884942A (en) * 1986-06-30 1989-12-05 Atlas Copco Aktiebolag Thrust monitoring and balancing apparatus
JPH05196004A (ja) * 1992-01-20 1993-08-06 Komatsu Ltd 作業機シリンダの自動クッション制御装置
CN103470553B (zh) * 2013-09-10 2015-10-14 上海羽翼船舶设备有限公司 一种减摇陀螺的进动限速装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974639A (en) * 1956-10-03 1961-03-14 Houdaille Industries Inc Hydraulic bridge servo control system
GB891726A (en) * 1958-01-22 1962-03-21 William Hector Mitchell Fluid pressure feed mechanism
FR1336455A (fr) * 1962-08-24 1963-08-30 Hydrel Ag Dispositif permettant de ralentir et d'accélérer à nouveau, sans à-coups, des transmissions hydrauliques
FR1492878A (fr) * 1966-04-14 1967-08-25 Auxitra Soc Perfectionnements aux dispositifs de commande hydraulique
DE1550731A1 (de) * 1966-12-23 1969-07-31 Diosgyoeri Gepgyar Hydraulische Fernsteuereinrichtung mit geschlossenem System
US3530766A (en) * 1969-01-09 1970-09-29 Ware Machine Works Inc Control mechanism for automatically restricting the flow of fluid in a conduit leading to hydraulically actuated means
US3872773A (en) * 1972-08-09 1975-03-25 Nutron Corp Position controlling
GB1408607A (en) * 1972-10-06 1975-10-01 Cessna Aircraft Co Hydraulic valve means
DE2625063A1 (de) * 1976-06-03 1977-12-15 Transform Verstaerkungsmasch Steuervorrichtung zur geschwindigkeitsregelung von pneumatischen und/oder hydraulischen arbeitskolben

Also Published As

Publication number Publication date
US4350078A (en) 1982-09-21
FI66466C (fi) 1987-08-05
NO151017C (no) 1985-01-23
EP0016896A2 (fr) 1980-10-15
NO794278L (no) 1980-07-03
FI66466B (fi) 1984-06-29
SE7900014L (sv) 1980-07-03
NO151017B (no) 1984-10-15
EP0016896A3 (fr) 1981-03-25
FI800009A (fi) 1980-07-03

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