DE3590423T1 - Hydraulic slewing system for slewing cranes - Google Patents
Hydraulic slewing system for slewing cranesInfo
- 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- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes 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
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
- B66C23/86—Slewing 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)
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)
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)
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)
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 |
-
1984
- 1984-09-06 DK DK424984A patent/DK151102C/en not_active IP Right Cessation
-
1985
- 1985-09-06 GB GB08610936A patent/GB2177675B/en not_active Expired
- 1985-09-06 CH CH191486A patent/CH669183A5/en not_active IP Right Cessation
- 1985-09-06 JP JP50415385A patent/JPS62500376A/en active Pending
- 1985-09-06 EP EP19850904609 patent/EP0192750B1/en not_active Expired
- 1985-09-06 AT AT902885A patent/ATA902885A/en not_active Application Discontinuation
- 1985-09-06 WO PCT/DK1985/000086 patent/WO1986001494A1/en active IP Right Grant
- 1985-09-06 DE DE19853590423 patent/DE3590423T1/en not_active Withdrawn
- 1985-09-06 NL NL8520291A patent/NL8520291A/en unknown
-
1986
- 1986-05-02 NO NO861761A patent/NO861761L/en unknown
- 1986-05-05 FI FI861871A patent/FI861871A0/en not_active Application Discontinuation
- 1986-05-05 SE SE8602046A patent/SE465266B/en not_active IP Right Cessation
Cited By (2)
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 |