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 GB62024/69A priority Critical patent/GB1291080A/en
Priority to US886667A priority patent/US3677426A/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

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
GB62024/69A GB1291080A (en) 1969-12-19 1969-12-19 Improvements in hydraulically operated equipment
US886667A US3677426A (en) 1969-12-19 1969-12-19 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
US4592696A (en) * 1981-06-01 1986-06-03 Pulsar International Limited 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
EP4183936A1 (en) * 2021-11-22 2023-05-24 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