ZA889273B - Pulsating hydraulic drive system - Google Patents

Pulsating hydraulic drive system

Info

Publication number
ZA889273B
ZA889273B ZA889273A ZA889273A ZA889273B ZA 889273 B ZA889273 B ZA 889273B ZA 889273 A ZA889273 A ZA 889273A ZA 889273 A ZA889273 A ZA 889273A ZA 889273 B ZA889273 B ZA 889273B
Authority
ZA
South Africa
Prior art keywords
drive system
hydraulic drive
pulsating hydraulic
pulsating
hydraulic
Prior art date
Application number
ZA889273A
Inventor
Frank Sieke
Sieke Frank
Harald Sieke
Sieke Harald
Martin Sieke
Sieke Martin
Original Assignee
Sieke Helmut
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 Sieke Helmut filed Critical Sieke Helmut
Publication of ZA889273B publication Critical patent/ZA889273B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
    • E02F5/32—Rippers
    • E02F5/326—Rippers oscillating or vibrating
    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/402—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors
    • E02F3/405—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors using vibrating means
    • 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
    • E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
    • E02F9/221—Arrangements for controlling the attitude of actuators, e.g. speed, floating function for generating actuator vibration
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/12—Fluid oscillators or pulse generators
    • F15B21/125—Fluid oscillators or pulse generators by means of a rotating valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Shovels (AREA)
ZA889273A 1987-12-12 1988-12-12 Pulsating hydraulic drive system ZA889273B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873742198 DE3742198A1 (en) 1987-12-12 1987-12-12 PULSE HYDRAULIC DRIVE SYSTEM

Publications (1)

Publication Number Publication Date
ZA889273B true ZA889273B (en) 1989-08-30

Family

ID=6342476

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA889273A ZA889273B (en) 1987-12-12 1988-12-12 Pulsating hydraulic drive system

Country Status (9)

Country Link
EP (1) EP0359785A1 (en)
JP (1) JPH02502475A (en)
AU (1) AU2808089A (en)
BR (1) BR8807358A (en)
DD (1) DD276125A5 (en)
DE (1) DE3742198A1 (en)
ES (1) ES2013378A6 (en)
WO (1) WO1989005408A1 (en)
ZA (1) ZA889273B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO303137B1 (en) * 1996-08-13 1998-06-02 Gjerstad Mek Ind As Device by excavator drawer
JP3468672B2 (en) * 1997-10-23 2003-11-17 帝人製機株式会社 Vibration generator
US6763661B2 (en) * 2002-05-07 2004-07-20 Husco International, Inc. Apparatus and method for providing vibration to an appendage of a work vehicle
DE10339190A1 (en) * 2003-08-22 2005-03-17 Kreye, Jürgen Ball cutter has swivel mounted bottom cutter with hydraulic drive with hydraulic cylinder, rotational drive, swivel cylinder and swivel motor with pulsating movement produced through two independent hydraulic pressures
FI131038B1 (en) * 2023-02-07 2024-08-09 Allu Innovation And Res Center Oy Method and system for transferring hydraulic power between a pump and an actuator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027027A (en) * 1960-01-05 1962-03-27 Marcus J Bles Combination pick and bucket attachment for excavating machines and the like
US3113390A (en) * 1962-04-30 1963-12-10 Charles W Pewthers Movable excavating bucket teeth
DE1634709A1 (en) * 1965-11-19 1970-07-16 Bilger Fa Friedr Working device with soil cultivation tool
FR1582406A (en) * 1967-10-26 1969-09-26
FR2049403A5 (en) * 1969-06-09 1971-03-26 Haynes Freddie
DE2813202A1 (en) * 1978-03-25 1979-10-04 Salzgitter Maschinen Ag Digging shovel incorporating mechanical drive - has teeth projecting from bottom, reciprocated from rear, and may incorporate vibrators
US4537556A (en) * 1983-05-12 1985-08-27 Tharp Emery C Reciprocating backhoe bucket

Also Published As

Publication number Publication date
DD276125A5 (en) 1990-02-14
AU2808089A (en) 1989-07-05
JPH02502475A (en) 1990-08-09
DE3742198A1 (en) 1989-06-22
EP0359785A1 (en) 1990-03-28
BR8807358A (en) 1990-03-01
WO1989005408A1 (en) 1989-06-15
ES2013378A6 (en) 1990-05-01

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