DE1484636A1 - Einrichtung zum Verhindern einer unbeabsichtigten schnellen Abwaertsbewegung des Kuebels eines Schuerfkuebelladers - Google Patents

Einrichtung zum Verhindern einer unbeabsichtigten schnellen Abwaertsbewegung des Kuebels eines Schuerfkuebelladers

Info

Publication number
DE1484636A1
DE1484636A1 DE19631484636 DE1484636A DE1484636A1 DE 1484636 A1 DE1484636 A1 DE 1484636A1 DE 19631484636 DE19631484636 DE 19631484636 DE 1484636 A DE1484636 A DE 1484636A DE 1484636 A1 DE1484636 A1 DE 1484636A1
Authority
DE
Germany
Prior art keywords
valve
pressure medium
bucket
lowering
pressure
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.)
Pending
Application number
DE19631484636
Other languages
German (de)
English (en)
Inventor
Scheidt James Edward
Hein Allyn John
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
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 Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Publication of DE1484636A1 publication Critical patent/DE1484636A1/de
Pending legal-status Critical Current

Links

Classifications

    • 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
    • E02F3/64—Buckets cars, i.e. having scraper bowls
    • E02F3/65—Component parts, e.g. drives, control devices
    • E02F3/652—Means to adjust the height of the scraper bowls, e.g. suspension means, tilt control, earth damping control
    • 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
    • E02F3/64—Buckets cars, i.e. having scraper bowls
    • 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
    • E02F3/64—Buckets cars, i.e. having scraper bowls
    • E02F3/6454—Towed (i.e. pulled or pushed) scrapers
    • E02F3/6481—Towed (i.e. pulled or pushed) scrapers with scraper bowls with an ejector having translational movement for dumping the soil
    • 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
    • E02F3/64—Buckets cars, i.e. having scraper bowls
    • E02F3/65—Component parts, e.g. drives, control devices
    • E02F3/651—Hydraulic or pneumatic drives; Electric or electro-mechanical control devices
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Soil Working Implements (AREA)
  • Handcart (AREA)
DE19631484636 1962-12-26 1963-12-17 Einrichtung zum Verhindern einer unbeabsichtigten schnellen Abwaertsbewegung des Kuebels eines Schuerfkuebelladers Pending DE1484636A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US247056A US3127688A (en) 1962-12-26 1962-12-26 Hydraulic circuit for control of earthmoving scraper bowls

Publications (1)

Publication Number Publication Date
DE1484636A1 true DE1484636A1 (de) 1969-10-23

Family

ID=22933371

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19631484636 Pending DE1484636A1 (de) 1962-12-26 1963-12-17 Einrichtung zum Verhindern einer unbeabsichtigten schnellen Abwaertsbewegung des Kuebels eines Schuerfkuebelladers

Country Status (3)

Country Link
US (1) US3127688A (enrdf_load_stackoverflow)
DE (1) DE1484636A1 (enrdf_load_stackoverflow)
GB (1) GB987078A (enrdf_load_stackoverflow)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3360875A (en) * 1965-07-27 1968-01-02 Gen Motors Corp Two speed hoist for earth-moving vehicle
US3438308A (en) * 1966-09-12 1969-04-15 Cascade Corp Hoist ram control apparatus
US3469861A (en) * 1967-11-22 1969-09-30 Caterpillar Tractor Co Hydraulic control circuit for push-pull coupling of tandem machines
US3653132A (en) * 1969-08-28 1972-04-04 Caterpillar Tractor Co Automatic positioning systems for scraper elevators
US3800670A (en) * 1969-10-21 1974-04-02 Caterpillar Tractor Co High pressure implement hydraulic circuit
US3728941A (en) * 1970-11-23 1973-04-24 Caterpillar Tractor Co Flow control valve
US3906840A (en) * 1972-04-17 1975-09-23 Caterpillar Tractor Co Hydraulic control system for load supporting hydraulic motors
US3943825A (en) * 1972-04-17 1976-03-16 Caterpillar Tractor Co. Hydraulic control system for load supporting hydraulic motors
US4006667A (en) * 1972-04-17 1977-02-08 Caterpillar Tractor Co. Hydraulic control system for load supporting hydraulic motors
US3788401A (en) * 1972-07-17 1974-01-29 Caterpillar Tractor Co Hydraulic circuit with valve to provide semi-float control of a dozer blade
US3947981A (en) * 1974-12-09 1976-04-06 International Harvester Company Scraper bowl with hydraulic safety lock
US4000683A (en) * 1975-05-27 1977-01-04 Caterpillar Tractor Co. Hydraulic load lifting system
US4088151A (en) * 1976-05-26 1978-05-09 Borg-Warner Corporation Cylinder locking apparatus
US4165675A (en) * 1977-04-07 1979-08-28 Caterpillar Tractor Co. Load check valve cylinder mounted
US4167892A (en) * 1977-04-07 1979-09-18 Caterpillar Tractor Co. Load check with mechanical venting means
US4130049A (en) * 1977-04-07 1978-12-19 Caterpillar Tractor Co. Vent control for cylinder mounted load check valves
US4278011A (en) * 1977-06-06 1981-07-14 J. I. Case Company Automatic hydraulic shut-off system
CH636932A5 (de) * 1979-06-22 1983-06-30 Sulzer Ag Sicherheitsschaltung mit einem doppeltwirkenden, fluidbetriebenen servomotor.
US7984576B2 (en) 2006-09-04 2011-07-26 Miller Uk Limited Coupler
GB2476915B (en) * 2007-06-13 2011-09-14 Miller Uk Ltd Coupler
US8316757B2 (en) * 2009-12-04 2012-11-27 Walvoil Fluid Power Corp. Hydraulic control valve assembly with monolithic body and single spool port lock

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2897613A (en) * 1956-04-25 1959-08-04 Int Harvester Co Hydraulic carrying-lock for earth-working scrapers

Also Published As

Publication number Publication date
GB987078A (enrdf_load_stackoverflow) 1965-03-24
US3127688A (en) 1964-04-07

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