ES464632A2 - Swing apparatus - Google Patents

Swing apparatus

Info

Publication number
ES464632A2
ES464632A2 ES464632A ES464632A ES464632A2 ES 464632 A2 ES464632 A2 ES 464632A2 ES 464632 A ES464632 A ES 464632A ES 464632 A ES464632 A ES 464632A ES 464632 A2 ES464632 A2 ES 464632A2
Authority
ES
Spain
Prior art keywords
energizing device
opposite directions
rotating element
fluid
swing apparatus
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.)
Expired
Application number
ES464632A
Other languages
Spanish (es)
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.)
Massey Ferguson Inc
Original Assignee
Massey Ferguson Inc
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
Priority claimed from US05/746,572 external-priority patent/US4085855A/en
Application filed by Massey Ferguson Inc filed Critical Massey Ferguson Inc
Publication of ES464632A2 publication Critical patent/ES464632A2/en
Expired 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
    • E02F3/28—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
    • E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
    • E02F3/382—Connections to the frame; Supports for booms or arms
    • E02F3/384—Connections to the frame; Supports for booms or arms the boom being pivotable relative to the frame about a vertical axis
    • 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)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Shovels (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

Apparatus for controlling the oscillation of the arm of a backhoe shovel or the like so as to be able to perform a movement from one side to the other and having a power source a sump and an energizing device connected to the rotating element so that the rotating element can rotate in opposite directions in response to fluid flow in opposite directions to and from the respective extremities of the energizing device that includes at least a pair of pipes to conduct the fluid to and from the energizing device. (Machine-translation by Google Translate, not legally binding)
ES464632A 1976-12-01 1977-11-30 Swing apparatus Expired ES464632A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/746,572 US4085855A (en) 1976-02-02 1976-12-01 Mechanism control

Publications (1)

Publication Number Publication Date
ES464632A2 true ES464632A2 (en) 1978-10-01

Family

ID=25001416

Family Applications (1)

Application Number Title Priority Date Filing Date
ES464632A Expired ES464632A2 (en) 1976-12-01 1977-11-30 Swing apparatus

Country Status (7)

Country Link
JP (1) JPS5377975A (en)
AU (1) AU512429B2 (en)
DE (1) DE2753073A1 (en)
ES (1) ES464632A2 (en)
GB (1) GB1594486A (en)
IT (1) IT1114678B (en)
ZA (1) ZA776451B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4139379A1 (en) * 1991-11-29 1993-06-24 Dfa Fertigungs Und Anlagenbau Mobile remote-controlled machine for demolition, loading, and digging - has hydraulic cylinders, which are fixed to permit independent control consisting of proportional, path and double return valves

Also Published As

Publication number Publication date
ZA776451B (en) 1978-08-30
AU512429B2 (en) 1980-10-03
IT1114678B (en) 1986-01-27
GB1594486A (en) 1981-07-30
JPS5377975A (en) 1978-07-10
DE2753073A1 (en) 1978-06-08
AU3009577A (en) 1979-05-03

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Legal Events

Date Code Title Description
FD2A Announcement of lapse in spain

Effective date: 20170706