DE1054220B - Circuit for hydraulic crane drives - Google Patents

Circuit for hydraulic crane drives

Info

Publication number
DE1054220B
DE1054220B DEV12597A DEV0012597A DE1054220B DE 1054220 B DE1054220 B DE 1054220B DE V12597 A DEV12597 A DE V12597A DE V0012597 A DEV0012597 A DE V0012597A DE 1054220 B DE1054220 B DE 1054220B
Authority
DE
Germany
Prior art keywords
circuit
engines
working
hydraulic crane
crane drives
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.)
Pending
Application number
DEV12597A
Other languages
German (de)
Inventor
Hans-Dieter Hennig
Hellmuth Landmann
Hermann Werth
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.)
EBERSWALDE KRANBAU
Original Assignee
EBERSWALDE KRANBAU
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 EBERSWALDE KRANBAU filed Critical EBERSWALDE KRANBAU
Priority to DEV12597A priority Critical patent/DE1054220B/en
Publication of DE1054220B publication Critical patent/DE1054220B/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/08—Driving gear incorporating fluid motors
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/06—Cranes in which the lifting movement is done with a hydraulically controlled plunger
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/01—Winches, capstans or pivots
    • B66D2700/0125—Motor operated winches
    • B66D2700/0133—Fluid actuated
    • 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
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30585—Assemblies of multiple valves having a single valve for 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

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)
  • Automation & Control Theory (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Jib Cranes (AREA)

Description

Schaltung für hydraulische Krantriebwerke Die Erfindung bezieht sich auf eine Schaltung für hydraulische Krantriebwerke mit mehreren Pumpen und mehreren Triebwerken. Bei den bekannten hydraulisch betriebenen Kranen arbeitet jede Pumpe auf ein oder zwei bestimmte Triebwerke. Die Kraftzentrale muß bei diesen Kranen so groß ausgelegt sein, daß ohne Störungen alle Kranbewegungen zur gleichen Zeit erfolgen und außerdem noch die Stromstöße aufgenommen werden können. Läuft ein Triebwerk allein, so ist die Kraftzentrale nicht immer voll ausgelastet.Circuit for hydraulic crane drives The invention relates to on a circuit for hydraulic crane drives with several pumps and several Engines. In the known hydraulically operated cranes, each pump works on one or two specific engines. The power center must be with these cranes be designed so large that all crane movements at the same time without interference and the power surges can also be absorbed. Is an engine running? alone, the power center is not always fully utilized.

Der Erfindung liegt die Aufgabe zugrunde, eine hydraulische Schaltung vorzusehen, die für Krane gleicher Umschlagleistung eine geringere installierte Leistung und eine bessere Ausnutzung der Kraftzentrale ermöglicht.The invention is based on the object of a hydraulic circuit to be provided that installed a lower one for cranes with the same handling capacity Performance and a better utilization of the power center enables.

Zu diesem Zweck werden die Schaltmittel so ausgebildet, daß die Pumpen der jeweils nicht arbeitenden Triebwerke ihr Druckmittel an das arbeitende bzw. die arbeitenden Triebwerke abgeben und zwangläufig beim Betätigen der einzelnen Steuerorgane der Ölstrom jeder Pumpe zu dem zugehörigen Triebwerk geleitet wird.For this purpose, the switching means are designed so that the pumps of the non-working engines apply their pressure medium to the working or give up the working engines and inevitably when operating the individual Control organs of the oil flow of each pump is directed to the associated engine.

Bordwippkrane z. B. können erst nach einer relativ langen Hubzeit die Dreh- und/oder Wippbewegung ausführen, da die Last bzw. das Hakengeschirr für diese Bewegungen sich bereits oberhalb der Reling befinden muß. Die größte Einschaltdauer wird das Hubwerk haben.On-board luffing cranes z. B. can only after a relatively long lifting time perform the turning and / or rocking movement, as the load or the hook tackle for these movements must already be above the railing. The greatest duty cycle will have the hoist.

Um in diesem Falle die installierte Leistung des Kranes besser auszunutzen, werden für diesen Arbeitsvorgang die Pumpen anderer Triebwerke mit auf das Hubwerk geschaltet, wodurch sich eine Vergrößerung der Hubgeschwindigkeit verbunden mit einer Leistungssteigerung ergibt. Die Schaltung wird so ausgebildet, daß nach dem erwähnten Beispiel beim Einschalten des Dreh- oder wippwerkes die hierfür vorgesehene Pumpe zwangläufig ihr Druckmittel zu diesem Triebwerk leitet, wodurch die Hubgeschwindigkeit vermindert wird. Für diese Schaltung ergibt sich außer dem Vorteil, daß bei gleicher Umschlagleistung die installierte Leistung geringer ist, noch der Vorteil, daß der Kranführer sich beim alleinigen Heben voll auf diesen Arbeitsgang konzentrieren kann und somit eine große Hubgeschwindigkeit möglich ist, während automatisch beim gleichzeitigen Arbeiten mit mehreren Kranbewegungen die Hubgeschwindigkeit vermindert wird, wodurch der Aufmerksamkeitsteilung Rechnung getragen wird.In order to better utilize the installed capacity of the crane in this case, the pumps of other engines are also used on the hoist for this work process switched, whereby an increase in the lifting speed associated with results in an increase in performance. The circuit is designed so that after mentioned example when switching on the slewing gear or luffing gear is the one provided for this Pump inevitably directs its pressure medium to this engine, which increases the lifting speed is decreased. For this circuit there is also the advantage that with the same Handling capacity the installed capacity is lower, nor the advantage that the When lifting alone, the crane operator can concentrate fully on this work step can and thus a high lifting speed is possible, while automatically with simultaneous work with several crane movements reduces the lifting speed whereby the division of attention is taken into account.

Claims (1)

PATENTANSPRUCH: Schaltung für hydraulische Krantriebwerke mit mehreren Pumpen und mehreren Triebwerken, . dadurch gekennzeichnet, daß die Schaltmittel so ausgebildet sind, daß die Pumpen der jeweils nicht arbeitenden Triebwerke ihr Druckmittel an das arbeitende bzw. die arbeitenden Triebwerke abgeben und zwangläufig beim Betätigen der einzelnen Steuerorgane der Ölstrom jeder Pumpe zu dem zugehörigen Triebwerk geleitet wird. In Betracht gezogene Druckschriften: USA.-Patentschrift Nr. 2 475 963.PATENT CLAIM: Circuit for hydraulic crane drive units with several Pumps and multiple engines,. characterized in that the switching means are designed so that the pumps of the non-working engines you Release pressure medium to the working or working engines and inevitably when the individual control elements are actuated, the flow of oil from each pump to the associated one Engine is directed. References contemplated: United States Patent Specification No. 2,475,963.
DEV12597A 1957-06-11 1957-06-11 Circuit for hydraulic crane drives Pending DE1054220B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV12597A DE1054220B (en) 1957-06-11 1957-06-11 Circuit for hydraulic crane drives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV12597A DE1054220B (en) 1957-06-11 1957-06-11 Circuit for hydraulic crane drives

Publications (1)

Publication Number Publication Date
DE1054220B true DE1054220B (en) 1959-04-02

Family

ID=7573905

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV12597A Pending DE1054220B (en) 1957-06-11 1957-06-11 Circuit for hydraulic crane drives

Country Status (1)

Country Link
DE (1) DE1054220B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1169631B (en) * 1962-04-03 1964-05-06 Krupp Ardelt Gmbh Control device for slewing jib cranes
DE1193877B (en) * 1962-02-21 1965-05-26 Saarbergtechnik G M B H Mobile loader, especially crawler loader, with hydraulic drive for several functions
DE1246968B (en) * 1963-12-26 1967-08-10 Jeffrey Galion Mfg Company Slewing crane with a boom that can be raised and lowered and an extendable and retractable telescopic arm
DE1252863B (en) * 1963-12-26 1967-10-26 Jeffrey Galion Mfg Company Rotary crane with a boom that can be raised and lowered on the rotating structure
DE1264261B (en) * 1961-06-03 1968-03-21 Teves Gmbh Alfred Hydraulic system
DE1484743B1 (en) * 1963-04-24 1970-09-10 Orenstein & Koppel Ag Circuit for hydrostatically operated hydro devices
DE2364282A1 (en) * 1973-12-22 1975-07-03 Orenstein & Koppel Ag CIRCUIT FOR HYDROSTATICALLY OPERATED EQUIPMENT
DE19854929C2 (en) * 1997-12-05 2002-02-14 Komatsu Mfg Co Ltd Excavator vehicle with hydraulic drive

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475963A (en) * 1943-12-06 1949-07-12 Roy C Howell Motor truck crane

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475963A (en) * 1943-12-06 1949-07-12 Roy C Howell Motor truck crane

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1264261B (en) * 1961-06-03 1968-03-21 Teves Gmbh Alfred Hydraulic system
DE1193877B (en) * 1962-02-21 1965-05-26 Saarbergtechnik G M B H Mobile loader, especially crawler loader, with hydraulic drive for several functions
DE1169631B (en) * 1962-04-03 1964-05-06 Krupp Ardelt Gmbh Control device for slewing jib cranes
DE1484743B1 (en) * 1963-04-24 1970-09-10 Orenstein & Koppel Ag Circuit for hydrostatically operated hydro devices
DE1246968B (en) * 1963-12-26 1967-08-10 Jeffrey Galion Mfg Company Slewing crane with a boom that can be raised and lowered and an extendable and retractable telescopic arm
DE1252863B (en) * 1963-12-26 1967-10-26 Jeffrey Galion Mfg Company Rotary crane with a boom that can be raised and lowered on the rotating structure
DE1259071B (en) * 1963-12-26 1968-01-18 Jeffrey Galion Mfg Company Hydraulic drive device for a slewing crane
DE2364282A1 (en) * 1973-12-22 1975-07-03 Orenstein & Koppel Ag CIRCUIT FOR HYDROSTATICALLY OPERATED EQUIPMENT
DE19854929C2 (en) * 1997-12-05 2002-02-14 Komatsu Mfg Co Ltd Excavator vehicle with hydraulic drive

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