GB1044851A - Improvements in or relating to hydraulic systems for excavators - Google Patents

Improvements in or relating to hydraulic systems for excavators

Info

Publication number
GB1044851A
GB1044851A GB1558065A GB1558065A GB1044851A GB 1044851 A GB1044851 A GB 1044851A GB 1558065 A GB1558065 A GB 1558065A GB 1558065 A GB1558065 A GB 1558065A GB 1044851 A GB1044851 A GB 1044851A
Authority
GB
United Kingdom
Prior art keywords
block
excavator
power
supplied
hydraulic power
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
GB1558065A
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.)
Auxitra SA
Original Assignee
Auxitra SA
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 Auxitra SA filed Critical Auxitra SA
Publication of GB1044851A publication Critical patent/GB1044851A/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
    • E02F3/30—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
    • E02F3/30—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
    • 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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
    • 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
    • E02F9/2278—Hydraulic circuits
    • E02F9/2292—Systems with two or more pumps
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • F15B2211/31588—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and multiple output members
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups

Abstract

1,044,851. Hydraulic power system for an excavator. SOC. ANON. AUXITRA. April 12, 1965 [April 14, 1964], No. 15580/65. Heading E1 F. An hydraulic system for an excavator, e.g. a drag shovel excavator, involves a prime mover driving two pumps, each pump supplying pressurizsd liquid to a valve block by which may be controlled the associated of two motors driving the crawler tracks of the excavator. The first of said pumps may also supply hydraulic power through a third valve block to a motor for slewing the excavator superstructure relative to the crawler-mounted base of the excavator, this power preferably being supplied to the third block through the first block in all settings thereof. The second pump may also supply hydraulic power through a further three valved block to piston cylinder units controlling movement of the boom, dipper stick and tool of the excavator, this power preferably being supplied to the three valves through the second block in all settings thereof. Means are also provided in the system for when hydraulic power is not being supplied from the third block to the superstructureslewing motor of supplying power then available from the first pump to the three valved block.
GB1558065A 1964-04-14 1965-04-12 Improvements in or relating to hydraulic systems for excavators Expired GB1044851A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR970842A FR1400491A (en) 1964-04-14 1964-04-14 Hydraulic distribution system for excavator

Publications (1)

Publication Number Publication Date
GB1044851A true GB1044851A (en) 1966-10-05

Family

ID=8827732

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1558065A Expired GB1044851A (en) 1964-04-14 1965-04-12 Improvements in or relating to hydraulic systems for excavators

Country Status (2)

Country Link
FR (1) FR1400491A (en)
GB (1) GB1044851A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4558629A (en) * 1982-12-10 1985-12-17 Gewerkschaft Eisenhutte Westfalia Hydraulic control means for pipe thrust-jacking apparatus
EP0228707A1 (en) * 1985-12-28 1987-07-15 Hitachi Construction Machinery Co., Ltd. Control system of hydraulic construction machinery
EP0279362A1 (en) * 1987-02-19 1988-08-24 Deere & Company Hydraulic system
WO2010141007A1 (en) * 2009-06-01 2010-12-09 Bucyrus International, Inc. Hydraulic crowd system for electric mining shovel
CN102383802A (en) * 2011-08-10 2012-03-21 柳州市华晟机电设备制造有限公司 Loose excavator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4171054A (en) * 1976-12-28 1979-10-16 Kubota, Ltd. Work vehicle with hydraulic circuit for swivel motor and work assembly arm motor
KR910009257B1 (en) * 1985-09-07 1991-11-07 히다찌 겡끼 가부시기가이샤 Control system for hydraulically operated construction machinery

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4558629A (en) * 1982-12-10 1985-12-17 Gewerkschaft Eisenhutte Westfalia Hydraulic control means for pipe thrust-jacking apparatus
EP0228707A1 (en) * 1985-12-28 1987-07-15 Hitachi Construction Machinery Co., Ltd. Control system of hydraulic construction machinery
US4726186A (en) * 1985-12-28 1988-02-23 Hitachi, Construction Machinery Co. Control system of hydraulic construction machinery
EP0279362A1 (en) * 1987-02-19 1988-08-24 Deere & Company Hydraulic system
WO2010141007A1 (en) * 2009-06-01 2010-12-09 Bucyrus International, Inc. Hydraulic crowd system for electric mining shovel
US8920104B2 (en) 2009-06-01 2014-12-30 Caterpillar Global Mining Llc Hydraulic crowd system for electric mining shovel
CN102383802A (en) * 2011-08-10 2012-03-21 柳州市华晟机电设备制造有限公司 Loose excavator

Also Published As

Publication number Publication date
FR1400491A (en) 1965-05-28

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