NL7708908A - Pivoting beam type hydraulic excavator - has jib derricking ram chambers connected to chambers of third ram between jib and arm - Google Patents

Pivoting beam type hydraulic excavator - has jib derricking ram chambers connected to chambers of third ram between jib and arm

Info

Publication number
NL7708908A
NL7708908A NL7708908A NL7708908A NL7708908A NL 7708908 A NL7708908 A NL 7708908A NL 7708908 A NL7708908 A NL 7708908A NL 7708908 A NL7708908 A NL 7708908A NL 7708908 A NL7708908 A NL 7708908A
Authority
NL
Netherlands
Prior art keywords
ram
jib
chambers
arm
hydraulic excavator
Prior art date
Application number
NL7708908A
Other languages
Dutch (nl)
Original Assignee
Pieter Postmus
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 Pieter Postmus filed Critical Pieter Postmus
Priority to NL7708908A priority Critical patent/NL7708908A/en
Publication of NL7708908A publication Critical patent/NL7708908A/en

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
    • E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • 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
    • E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/32—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
    • 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
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/425—Drive systems for dipper-arms, backhoes or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

The hydraulically-operated excavator has a job derricked in a vertical plane by a first ram, and a bucket arm hinging on the jib under the action of a second ram. A third ram (18) is coupled between the jib (2) and the arm (8), and the chambers on the opposite sides of the piston in this ram cylinder are connected to those on opposite sides of the first ram piston (4).
NL7708908A 1977-08-12 1977-08-12 Pivoting beam type hydraulic excavator - has jib derricking ram chambers connected to chambers of third ram between jib and arm NL7708908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7708908A NL7708908A (en) 1977-08-12 1977-08-12 Pivoting beam type hydraulic excavator - has jib derricking ram chambers connected to chambers of third ram between jib and arm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7708908A NL7708908A (en) 1977-08-12 1977-08-12 Pivoting beam type hydraulic excavator - has jib derricking ram chambers connected to chambers of third ram between jib and arm

Publications (1)

Publication Number Publication Date
NL7708908A true NL7708908A (en) 1979-02-14

Family

ID=19829005

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7708908A NL7708908A (en) 1977-08-12 1977-08-12 Pivoting beam type hydraulic excavator - has jib derricking ram chambers connected to chambers of third ram between jib and arm

Country Status (1)

Country Link
NL (1) NL7708908A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3004289A1 (en) * 1979-11-28 1981-08-13 Ziegler AG, Liestal DEVICE FOR PARALLEL GUIDANCE OF THE BUCKET OF A HYDRAULIC EXCAVATOR

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3004289A1 (en) * 1979-11-28 1981-08-13 Ziegler AG, Liestal DEVICE FOR PARALLEL GUIDANCE OF THE BUCKET OF A HYDRAULIC EXCAVATOR
US4343099A (en) * 1979-11-28 1982-08-10 Ziegler Ag Apparatus for the parallel guidance of the bucket of a hydraulic excavator

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Legal Events

Date Code Title Description
BV The patent application has lapsed