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GB1291080A - Improvements in hydraulically operated equipment - Google Patents

Improvements in hydraulically operated equipment

Info

Publication number
GB1291080A
GB1291080A GB62024/69A GB6202469A GB1291080A GB 1291080 A GB1291080 A GB 1291080A GB 62024/69 A GB62024/69 A GB 62024/69A GB 6202469 A GB6202469 A GB 6202469A GB 1291080 A GB1291080 A GB 1291080A
Authority
GB
United Kingdom
Prior art keywords
fluid
ram
motor
valve
shovel
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
GB62024/69A
Inventor
Dieter Gerhard Luck
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US886667A priority Critical patent/US3677426A/en
Priority to GB62024/69A priority patent/GB1291080A/en
Publication of GB1291080A publication Critical patent/GB1291080A/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
    • E02F3/40—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
    • 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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S37/00—Excavating
    • Y10S37/904—Vibration means for excavating tool

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

1291080 Scoop-arm machines D G LUCK 19 Dec 1969 62024/69 Heading E1F [Also in Division F1] A ram 6 operatively connected to an implement is supplied with fluid from a hydraulic circuit by which under overload conditions of the ram 6 fluid is by-passed to a motor 13 also operatively connected to the implement. The application is to an excavator in which the implement is a shovel and the motor 13 drives eccentrics, Figs. 3 to 5 (not shown), to give intermittent added force to the shovel. Under overload conditions a valve 12 opens to feed fluid to the motor 13 and operation of the eccentrics exerts further pressure on the shovel with a reaction on the ram 6 causing further build up of pressure which at a certain value operates a valve 15. If the further pressure is of short duration fluid flows through a line 17 and a throttle 18 to the reservoir 7 but if the further pressure is maintained the throttle 18 will not pass all the fluid which then operates a fast-opening, slow closing valve 20 to close the line to the ram 6 and pass fluid from the latter through the motor 13. The valve 20 may be omitted, Fig. 1 (not shown).
GB62024/69A 1969-12-19 1969-12-19 Improvements in hydraulically operated equipment Expired GB1291080A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US886667A US3677426A (en) 1969-12-19 1969-12-19 Hydraulically operated equipment
GB62024/69A GB1291080A (en) 1969-12-19 1969-12-19 Improvements in hydraulically operated equipment

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US88666769A 1969-12-19 1969-12-19
GB62024/69A GB1291080A (en) 1969-12-19 1969-12-19 Improvements in hydraulically operated equipment

Publications (1)

Publication Number Publication Date
GB1291080A true GB1291080A (en) 1972-09-27

Family

ID=26267862

Family Applications (1)

Application Number Title Priority Date Filing Date
GB62024/69A Expired GB1291080A (en) 1969-12-19 1969-12-19 Improvements in hydraulically operated equipment

Country Status (2)

Country Link
US (1) US3677426A (en)
GB (1) GB1291080A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA823751B (en) * 1981-06-01 1983-03-30 Fruit Export Holdings Ltd Material working machines
ZA838903B (en) * 1983-11-29 1984-08-29 Pulsar Int Ltd A material working machine
US6757992B1 (en) 2003-01-14 2004-07-06 New Holland North America, Inc. Skid steer loader bucket shaker
DE202015102864U1 (en) * 2015-06-02 2016-09-12 Gerhard Weihrauch Improved tool holder for an excavator
EP4183936B1 (en) * 2021-11-22 2024-06-12 Nabtesco Corporation Drive device and construction machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619748A (en) * 1948-01-16 1952-12-02 George R Mcintosh Reciprocating blade for carry-type scraper
US3084817A (en) * 1957-09-24 1963-04-09 Ford Motor Co Oscillatory digger
US2986294A (en) * 1958-10-17 1961-05-30 Hough Co Frank Bucket operating means for tractor loaders

Also Published As

Publication number Publication date
US3677426A (en) 1972-07-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees