DE3590423T1 - Hydraulic slewing system for slewing cranes - Google Patents

Hydraulic slewing system for slewing cranes

Info

Publication number
DE3590423T1
DE3590423T1 DE19853590423 DE3590423T DE3590423T1 DE 3590423 T1 DE3590423 T1 DE 3590423T1 DE 19853590423 DE19853590423 DE 19853590423 DE 3590423 T DE3590423 T DE 3590423T DE 3590423 T1 DE3590423 T1 DE 3590423T1
Authority
DE
Germany
Prior art keywords
slewing
hydraulic
cranes
crane
slewing cranes
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.)
Withdrawn
Application number
DE19853590423
Other languages
German (de)
Inventor
Fridtjof Berg Holte Kroell
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
Publication of DE3590423T1 publication Critical patent/DE3590423T1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62Constructional features or details
    • B66C23/84Slewing gear
    • B66C23/86Slewing gear hydraulically actuated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Fluid-Pressure Circuits (AREA)

Description

PCT/OK 85/00086PCT / OK 85/00086

Hydraulisches Drehsystem für Drehkräne.Hydraulic slewing system for slewing cranes.

Die Erfindung betrifft ein hydraulisches Drehsystem, in welchem ein Nebenschluß über den Eingang des hydraulischen Motors gelegt ist.The invention relates to a hydraulic rotary system in which a shunt via the input of the hydraulic Engine is set.

λ/ Drehkräne sind normalerweise mit einem Ausleger ausgerüstet, mit dem sowohl ein großes Rotations-Trägheitsmoment als auch eine exzentrische Windangriffszone geschaffen werden. Bei Drehkränen für die Bauindustrie soll der Kran, wenn er verlassen werden soll, in der Lage sein, frei in den Wind zu schwenken. Da bei diesen Kranarten ein Bedürfnis nach dem sogenannten Prinzip des "toten Mannes" besteht, bei dem sämtliche Bewegungen unterbunden werden sollen, wenn das Betätigungssignal oder die elektrische Stromversorgung erlischt, besteht das Bedürfnis zur Herstellung einer manuellen Betätigung bei der Drehbremse, eine Sache, die in vielen Fällen vergessen wird, was dann zu Schäden führt. λ / slewing cranes are usually equipped with a boom that creates both a large rotational moment of inertia and an eccentric zone exposed to wind. In the case of slewing cranes for the construction industry, the crane should be able to swing freely into the wind when it is to be abandoned. Since there is a need for the so-called "dead man" principle in these types of cranes, in which all movements are to be prevented when the actuation signal or the electrical power supply goes out, there is a need to produce manual actuation of the rotary brake, one thing which in many cases is forgotten, which then leads to damage.

Mit der vorliegenden Konstruktion nach der Erfindung wird dafür gesorgt, daß der Kran bei Ausfall des Stromkreises vom Wind wegschwenken kann, obgleich mit gesteuerter Geschwindigkeit. With the present construction according to the invention it is ensured that the crane in the event of failure of the circuit can swing away from the wind, albeit at a controlled speed.

Wegen seiner Eigenart, die darin besteht, die Bremsfähigkeit bei zunehmender Geschwindigkeit zu erhöhen, vermeidet das erfindungsgemäße System auch diejenigen Situationen, wo der Kran unkontrolliert zu schwenken beginnt, wenn etwa die Hälfte des Arbeitsbereiches des Kranes gegen den Wind abgedeckt ist.Because of its peculiarity, which is its ability to brake to increase with increasing speed, the system according to the invention also avoids those situations where the crane begins to slew in an uncontrolled manner when about half of the crane's working range is against the wind is covered.

. -2-. -2-

i. . ■ ■ .'■ .'i. . ■ ■. '■.'

Bei normaler Arbeitsweise des Kranes ist es durch Manövrierorgane möglich, den Nebenschlußeffekt aufzuheben, wenn entweder größere Kraft an der Maschinerie gewünscht wird oder der Motor als Stillstandsbremse fungieren sol] .When the crane is working normally, it is possible to use maneuvering devices to cancel the bypass effect if either greater force is required on the machinery or the motor is to act as a standstill brake].

Im folgenden wird die Erfindung unter Bezugnahme auf die Zeichnung beschrieben, wobeiIn the following the invention is described with reference to the drawing, wherein

Fig. 1 eine schematische Darstellung der Erfindung im unbetätigten Zustand zeigt.Fig. 1 shows a schematic representation of the invention in the non-actuated state.

Fig. 1 zeigt eine schematische Darstellung nach der Erfindung in inaktivem, stromlosem Zustand, wo der Hydraulikmotor A Öl durch ein Zweiwegventil C und eine Blende B hindurchtreten lassen kann, wenn der Kran in der Lage sein soll, sich in die Windrichtung einzustellen.Fig. 1 shows a schematic representation according to the invention in the inactive, de-energized state, where the hydraulic motor A can let oil pass through a two-way valve C and an orifice B if the crane is able to should adjust to the wind direction.

Im Betrieb wird ein Steuerventil D betätigt, um die Drehbewegung auszulösen. Je nachdem, ob das gesamte Öl in dem Motor A gewünscht wird für einen kräftigen Start oder ein sanfterer Start mit Druck- und Durchflußreduzierung durch die Blende B, kann das. Ventil C betätigt werden oder in seiner gezeigten Position verbleiben.In operation, a control valve D is actuated to control the rotary movement trigger. Depending on whether all of the oil in engine A is desired for a powerful start or a smoother start with pressure and flow reduction through the diaphragm B, the valve C can be actuated or remain in its position shown.

Claims (2)

ANSPRUCHEEXPECTATIONS 1. Hydraulisches Drehsystem für Drehkräne, dadurch gekennzeichnet , daß es bei Stromausfall dem Kran gestattet, sich in Windrichtung einzustellen, indem der Hydraulikmotor (A) Öl durch eine Blende (B) hindurchtreten lassen kann.1. Hydraulic rotating system for slewing cranes, characterized in that it is the crane in the event of a power failure allows to adjust to the wind direction by the hydraulic motor (A) oil passing through an orifice (B) can leave. 2. Hydraulisches Drehsystem für Drehkräne nach Anspruch 1, dadurch gekennzeichnet , daß der Nebenschlußeffekt mittels eines Ventils (C) aufgehoben werden kann, um eine Bremswirkung oder einen kräftigeren Start zu erzielen.2. Hydraulic rotating system for slewing cranes according to claim 1, characterized in that the bypass effect can be canceled by means of a valve (C) in order to to achieve a braking effect or a more powerful start.
DE19853590423 1984-09-06 1985-09-06 Hydraulic slewing system for slewing cranes Withdrawn DE3590423T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK424984A DK151102C (en) 1984-09-06 1984-09-06 HYDRAULIC CROWD DRIVE

Publications (1)

Publication Number Publication Date
DE3590423T1 true DE3590423T1 (en) 1986-10-09

Family

ID=8131737

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853590423 Withdrawn DE3590423T1 (en) 1984-09-06 1985-09-06 Hydraulic slewing system for slewing cranes

Country Status (12)

Country Link
EP (1) EP0192750B1 (en)
JP (1) JPS62500376A (en)
AT (1) ATA902885A (en)
CH (1) CH669183A5 (en)
DE (1) DE3590423T1 (en)
DK (1) DK151102C (en)
FI (1) FI861871A0 (en)
GB (1) GB2177675B (en)
NL (1) NL8520291A (en)
NO (1) NO861761L (en)
SE (1) SE465266B (en)
WO (1) WO1986001494A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017117505A1 (en) * 2017-08-02 2019-02-07 Manitowoc Crane Group France Sas Crane with closed hydraulic circuit

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE508992C2 (en) * 1991-05-22 1998-11-23 Einar Karlsson Device for damping oscillations in a hydraulic load crane
CN109469666A (en) * 2018-10-17 2019-03-15 江苏谷登工程机械装备有限公司 A kind of horizontal directional drilling machine hydraulic control system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT301802B (en) * 1970-04-21 1972-09-25 Hans Kuenz Fa Trolley for crane systems
US4013174A (en) * 1974-11-11 1977-03-22 The Manitowoc Company, Inc. Swing drive with automatic shut-down control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017117505A1 (en) * 2017-08-02 2019-02-07 Manitowoc Crane Group France Sas Crane with closed hydraulic circuit
DE102017117505B4 (en) * 2017-08-02 2020-10-22 Manitowoc Crane Group France Sas Closed hydraulic circuit crane

Also Published As

Publication number Publication date
EP0192750B1 (en) 1992-12-02
DK151102B (en) 1987-11-02
GB2177675A (en) 1987-01-28
GB8610936D0 (en) 1986-06-11
JPS62500376A (en) 1987-02-19
ATA902885A (en) 1993-08-15
DK424984D0 (en) 1984-09-06
EP0192750A1 (en) 1986-09-03
SE8602046L (en) 1986-05-05
SE465266B (en) 1991-08-19
SE8602046D0 (en) 1986-05-05
FI861871A (en) 1986-05-05
GB2177675B (en) 1988-05-18
FI861871A0 (en) 1986-05-05
NO861761L (en) 1986-05-02
WO1986001494A1 (en) 1986-03-13
DK424984A (en) 1986-03-07
CH669183A5 (en) 1989-02-28
DK151102C (en) 1988-03-21
NL8520291A (en) 1986-08-01

Similar Documents

Publication Publication Date Title
DE69734124T2 (en) working machine
DE102007041411B3 (en) Hydraulic deceleration-controlled disc brake unit for e.g. hoist in mining, has directional valve arranged in connecting line, and programmable logic controllers controlling control valves lying diagonal to each other in hydraulic lines
DE1252863B (en) Rotary crane with a boom that can be raised and lowered on the rotating structure
DE3590423T1 (en) Hydraulic slewing system for slewing cranes
DE102016106595A1 (en) Large manipulator with decentralized hydraulics
DE1054220B (en) Circuit for hydraulic crane drives
DE956882C (en) Slewing gear brake for slewing cranes, especially tower cranes
DE2045417A1 (en) Hydraulic control circuit for crane drives or the like
DE1031225B (en) Switching device that works with a pressurized medium for machines that have a cover that can only be opened when the machine is at a standstill
DE10354591B4 (en) elevator system
DE2357238C3 (en) Electrical safety circuit for soot, stripper, slab transport cranes or the like. Cranes
DE1241077B (en) Method for damping load swaying when braking mobile or swiveling hoists with loads hanging on load ropes
DE2146935C2 (en) Hydraulic crane slewing gear control
DE102017117505B4 (en) Closed hydraulic circuit crane
DE599917C (en) Safety device for three-phase conveying machines
DE20112146U1 (en) Emergency driving device for lifts
DE602144C (en) Control lever return for electrical conveyors
DE907575C (en) Winch with a load braking device that regulates the lowering speed
DD297135A5 (en) CIRCUIT ARRANGEMENT FOR HYDRAULIC ROTORS, ESPECIALLY OF TURNING CRANES
DE3421172A1 (en) Device for controlling hydraulic drives
DD240401A1 (en) CIRCUIT ARRANGEMENT FOR A HYDRAULIC WINCH DRIVE
DE1273155B (en) Lifting device that can be moved or pivoted in a horizontal plane by an electric motor and has a device for damping load oscillations when braking the horizontal movement
DE1179348B (en) Hydraulic lifting and luffing work group for hydraulically operated mobile cranes
DE683195C (en) United driving and safety brake
DE659559C (en) Lowering control for crane hoists

Legal Events

Date Code Title Description
8141 Disposal/no request for examination