DE1253886B - Stabilizing device for mobile cranes u. like - Google Patents
Stabilizing device for mobile cranes u. likeInfo
- Publication number
- DE1253886B DE1253886B DE1964D0043713 DED0043713A DE1253886B DE 1253886 B DE1253886 B DE 1253886B DE 1964D0043713 DE1964D0043713 DE 1964D0043713 DE D0043713 A DED0043713 A DE D0043713A DE 1253886 B DE1253886 B DE 1253886B
- Authority
- DE
- Germany
- Prior art keywords
- valve
- blocking
- pressure accumulator
- pressure
- damping
- 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
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
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
- B66C23/80—Supports, e.g. outriggers, for mobile cranes hydraulically actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/005—Suspension locking arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
- B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
- B60G21/06—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid
- B60G21/073—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
- Vehicle Body Suspensions (AREA)
Description
AUSLEGESCHRIFT E02fEDITORIAL EDITORIAL E02f
Nummer: 1253 886Number: 1253 886
Aktenzeichen: D43713XI/35bFile number: D43713XI / 35b
1253 886 Anmeldetag: 25. Februar 1964 1253 886 filing date: February 25, 1964
Auslegetag: 9. November 1967Opened on: November 9, 1967
Es sind hydraulisch arbeitende Dämpfungsund Blockiervorrichtungen achsgefederter Ausleger-Mobilkrane und -Bagger bekannt, bei denen zwischen der Achse und dem Fahrzeugrahmen oder auch einer den Ausleger des Kranes bzw. Baggers tragenden Plattform Blockierzylinder mit einem Druckspeicher und ein zwischen diesen befindliches, bei Kranbetrieb sperrendes und bei Fahrbetrieb die Verbindung zwischen den Blockierzylindern herstellendes Blockierventil sowie eine das öl unter Druck haltende Einrichtung, also üblicherweise eine Pumpe mit entsprechend eingebautem Rückschlagventil, angeordnet sind.There are hydraulically operating damping and locking devices axle-sprung jib mobile cranes and excavators are known, in which between the axle and the vehicle frame or a platform supporting the boom of the crane or excavator, locking cylinder with a pressure accumulator and a pressure accumulator located between these, locking during crane operation and with Driving operation, the connection between the locking cylinders producing the locking valve and a device keeping the oil under pressure, that is usually a pump with a correspondingly built-in check valve, are arranged.
Das Blockierventil tritt in Wirksamkeit, sobald der Ausleger den Raum zwischen den von den Fahrzeugrädern bestimmten senkrechten Ebenen verläßt, d. h. beim Verdrehen des Auslegers zu Arbeitsbeginn, wobei das Ventil seine Kurzschlußstellung für die Ölleitungen der Stabilisiereinrichtung verläßt und eine ölverbindung zwischen den Steuerschiebern der Stabilisiereinrichtungen ermöglicht.The blocking valve comes into effect as soon as the boom clears the space between the vehicle wheels leaves certain vertical planes, d. H. when turning the boom at the start of work, where the valve leaves its short-circuit position for the oil lines of the stabilizer and one Allows oil connection between the control slides of the stabilizing devices.
Diese vorbekannte Einrichtung soll durch die vorliegende Erfindung eine Verbesserung in Richtung auf eine besondere Anpassung an die verschiedensten Fahrverhältnisse erfahren. Es soll die Straßenbeschaffenheit berücksichtigt werden, so daß die Krane auch schlechte Straßen oder bucklig gestaltete Gelände mit ausreichender Geschwindigkeit, wie es ein störungsfreier Fahrbetrieb erfordert, passieren können.This previously known device is intended to be an improvement in the direction of the present invention experience a special adaptation to the most diverse driving conditions. It should be the road conditions must be taken into account, so that the cranes also have bad roads or bumpy designs Pass terrain at sufficient speed, as required for trouble-free driving can.
Die Erfindung besteht darin, daß in den hydraulischen Kreis der Stabilisiereinrichtung eine Überdruckeinrichtung eingebaut wird, die dafür sorgt, daß sowohl die vertikalen normalen Straßenschläge als auch außergewöhnlich harte, kurzzeitige Stöße ohne weiteres aufgenommen werden.The invention consists in that an overpressure device in the hydraulic circuit of the stabilizing device is installed, which ensures that both the vertical normal street blows as even exceptionally hard, short-term impacts can be easily absorbed.
Solche Überdruckvorrichtungen sind an sich aus dem Kraftfahrzeugbau bekannt, nämlich dergestalt, daß der Federung sowohl ein Rückschlagventil als auch ein Druckspeicher zugeordnet sind und daß der Druckspeicher bei Stößen eine gewisse Menge öl aufnimmt. Diese vorbekannten Einrichtungen können aber nicht ohne weiteres bei Fahrzeugkranen eingesetzt werden. Sie bedürfen der Abänderung, um auch die Probleme des Kranbetriebes zu berücksichtigen, wobei die Forderung zu erfüllen ist, daß eine einfache Konstruktion entsteht, die den Problemen des Kranbetriebes und des Fahrbetriebes gerecht wird.Such overpressure devices are known per se from motor vehicle construction, namely in such a way that both a check valve and a pressure accumulator are assigned to the suspension and that the pressure accumulator absorbs a certain amount of oil in the event of impacts. However, these previously known devices cannot easily be used in mobile cranes. They require modification in order to also take into account the problems of crane operation, the requirement to be met that a simple construction is created that does justice to the problems of crane operation and driving operation.
Diese Aufgabe wird erfindungsgemäß in der Weise gelöst, daß zu einem Druckspeicher sowohl eine Druckflüssigkeit aus einem Tank ansaugende und über ein Rückschlagventil unter Druck haltende Stabilisiereinrichtung für Mobilkrane u. dgl.This object is achieved according to the invention in such a way that to a pressure accumulator both a Pressure fluid sucking in from a tank and holding it under pressure via a non-return valve Stabilizing device for mobile cranes and the like.
Anmelder:Applicant:
DEMAG-ZUG G. m. b. H., Wetter/RuhrDEMAG-ZUG G. m. B. H., Wetter / Ruhr
Als Erfinder benannt:
Walter Ebert, Hagen (Westf.)Named as inventor:
Walter Ebert, Hagen (Westphalia)
Pumpe als auch ein Dämpfungsventil, das bei plötzlichem Überdruck Druckflüssigkeit in den Tank ableitet, parallel geschaltet sind und durch automa- *5 tische, in Abhängigkeit von der Drehstellung des Auslegers vorgenommene Umschaltung des Blockierventils mit den Druckräumen der Blockierzylinder in Verbindung gebracht werden.Pump as well as a damping valve, which diverts hydraulic fluid into the tank in the event of sudden overpressure, are connected in parallel and are brought into connection with the pressure chambers of the locking cylinders by automatic * 5 switching of the blocking valve depending on the rotary position of the boom.
Die Wirkverbindung zwischen dem Blockierventil und dem Ausleger wird durch eine Taststange hergestellt und kann über einen Handhebel und eine Kupplung unterbrochen werden.The operative connection between the blocking valve and the boom is established by a feeler rod and can be interrupted via a hand lever and a clutch.
Ferner ist zwischen dem Blockierventil und dem parallelgeschalteten Druckspeicher, Dämpfungsventil und Rückschlagventil ein Handschieber für Umschaltung zum Tank hin vorgesehen, um die Anlage entleeren zu können.Furthermore, there is a damping valve between the blocking valve and the pressure accumulator connected in parallel and check valve, a manual slide valve for switching to the tank is provided in order to empty the system to be able to.
Einzelheiten und Arbeitsweise einer Einrichtung nach der Erfindung werden an Hand eines in der Zeichnung dargestellten Ausführungsbeispiels beschrieben. Details and operation of a device according to the invention are based on one in the Drawing illustrated embodiment described.
Eine Plattform 1 eines Ausleger-Mobilkranes mit seinem Ausleger 2 befindet sich auf seinem Fahrzeugrahmen 3. Die Plattform 1 kann rund gehalten sein, sie kann aber auch die dargestellte Kurvenform haben oder mit einer eine solche Kurvenform aufweisenden Scheibe verbunden sein. Sie steht mit der Fahrzeugachse über Blockierzylinder und gegebenenfalls über Federn in Verbindung, kann aber auch pendelnd um ein Gelenk an die Fahrzeugachse angeschlossen sein.A platform 1 of a jib mobile crane with its jib 2 is located on its vehicle frame 3. The platform 1 can be kept round, but it can also have the curve shape shown or be connected to a disk having such a curve shape. It is connected to the vehicle axle via locking cylinders and possibly via springs, but it can also be connected to the vehicle axle in a pendulum fashion around a joint.
Von einer Pumpe 6 und einem Tank 7 führen Leitungen 4, 5 über ein Blockierventil 8 zu den Blockierzylindern. Das Blockierventil 8 wird über eine Taststange 9 gesteuert. Die Verbindung der Taststange 9 zum Blockierventil 8 kann durch einen Handhebel 9 α und eine schematisch dargestellte Kupplung 10 unterbrochen werden. Eine Feder 11 sorgt für eine Vorspannung des Blockierventils 8 in die Nullstellung. In dieser Stellung enden die Leitungen 4, 5 am Blockierventil 8 und stehen vor dem gezeichneten freien Ventilfeld.Lines 4, 5 lead from a pump 6 and a tank 7 via a blocking valve 8 to the blocking cylinders. The blocking valve 8 is controlled via a push rod 9 . The connection of the feeler rod 9 to the blocking valve 8 can be interrupted by a hand lever 9 α and a coupling 10 shown schematically. A spring 11 biases the blocking valve 8 into the zero position. In this position, the lines 4, 5 end at the blocking valve 8 and are in front of the free valve field shown.
709 687/64709 687/64
Claims (3)
Deutsche Patentschriften Nr. 631148, 694455,
021730;Considered publications:
German patent specifications No. 631148, 694455,
021730;
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1964D0043713 DE1253886B (en) | 1964-02-25 | 1964-02-25 | Stabilizing device for mobile cranes u. like |
NL6502058A NL6502058A (en) | 1964-02-25 | 1965-02-18 | |
SE232565A SE309096B (en) | 1964-02-25 | 1965-02-23 | |
GB801665A GB1090674A (en) | 1964-02-25 | 1965-02-24 | Stabilizer for mobile cranes |
FR6885A FR1425197A (en) | 1964-02-25 | 1965-02-24 | Stabilization device for mobile cranes or the like |
BE670273A BE670273A (en) | 1964-02-25 | 1965-09-29 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1964D0043713 DE1253886B (en) | 1964-02-25 | 1964-02-25 | Stabilizing device for mobile cranes u. like |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1253886B true DE1253886B (en) | 1967-11-09 |
Family
ID=7047806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1964D0043713 Pending DE1253886B (en) | 1964-02-25 | 1964-02-25 | Stabilizing device for mobile cranes u. like |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE670273A (en) |
DE (1) | DE1253886B (en) |
FR (1) | FR1425197A (en) |
GB (1) | GB1090674A (en) |
NL (1) | NL6502058A (en) |
SE (1) | SE309096B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2717388C2 (en) * | 1977-04-20 | 1986-09-18 | Integral Hydraulik & Co, 4000 Düsseldorf | Disengageable hydropneumatic suspension, especially for the rear axle of wheel loaders or the like with a lockable front axle |
US4264014A (en) * | 1978-11-06 | 1981-04-28 | Caterpillar Tractor Co. | Lock out means for pivotal axle suspension cylinders |
US4674638A (en) * | 1983-03-17 | 1987-06-23 | Kobe Steel Ltd. | Control for deflection reduction means |
US4573592A (en) * | 1983-03-17 | 1986-03-04 | Harnischfeger Corporation | Means to reduce oscillatory deflection of vehicle |
CA1213300A (en) * | 1983-03-17 | 1986-10-28 | Larry J. Oliphant | Means to reduce oscillatory deflection of vehicle |
US5188248A (en) * | 1990-04-27 | 1993-02-23 | Gehl Company | Stabilizing cylinder for a rough terrain forklift |
WO1993002880A1 (en) * | 1991-08-07 | 1993-02-18 | Microhydraulics, Inc. | Active suspension system |
CN102502409B (en) * | 2011-11-08 | 2014-05-14 | 中国矿业大学 | Horizontal pinned hydraulic system of crawler crane counterweight |
US9399382B2 (en) * | 2014-02-03 | 2016-07-26 | Cnh Industrial America Llc | Roll-over protection system |
US11592072B2 (en) | 2020-06-05 | 2023-02-28 | The Boeing Company | Dynamic load damping apparatus |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE631148C (en) * | 1935-03-30 | 1936-06-12 | Jean Bugatti | Suspension, especially for motor vehicles |
DE1838863U (en) * | 1959-06-25 | 1961-10-05 | Mengele & Soehne Masch Karl | ARRANGEMENT OF AN OIL RESERVOIR WITH AN AIR PRESSURE COMPARTMENT ON A PIPE LEADING TO THE VALVE COMPARTMENT OF A SHUT-OFF VALVE. |
-
1964
- 1964-02-25 DE DE1964D0043713 patent/DE1253886B/en active Pending
-
1965
- 1965-02-18 NL NL6502058A patent/NL6502058A/xx unknown
- 1965-02-23 SE SE232565A patent/SE309096B/xx unknown
- 1965-02-24 GB GB801665A patent/GB1090674A/en not_active Expired
- 1965-02-24 FR FR6885A patent/FR1425197A/en not_active Expired
- 1965-09-29 BE BE670273A patent/BE670273A/xx unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE631148C (en) * | 1935-03-30 | 1936-06-12 | Jean Bugatti | Suspension, especially for motor vehicles |
DE694455C (en) * | 1935-03-30 | 1940-08-01 | Jean Bugatti | Hydraulic suspension, especially for motor vehicles |
DE1838863U (en) * | 1959-06-25 | 1961-10-05 | Mengele & Soehne Masch Karl | ARRANGEMENT OF AN OIL RESERVOIR WITH AN AIR PRESSURE COMPARTMENT ON A PIPE LEADING TO THE VALVE COMPARTMENT OF A SHUT-OFF VALVE. |
Also Published As
Publication number | Publication date |
---|---|
NL6502058A (en) | 1965-08-26 |
FR1425197A (en) | 1966-01-14 |
BE670273A (en) | 1966-01-17 |
GB1090674A (en) | 1967-11-15 |
SE309096B (en) | 1969-03-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102005009843B4 (en) | Hydraulic system with closed circuit for a work vehicle | |
DE19743005B4 (en) | Speed control system | |
EP1752587B1 (en) | Hydraulic arrangement | |
EP0388641B1 (en) | Hydraulic system for earth-moving machines, in particular for loaders, tractors and the like | |
DE2710239C2 (en) | ||
DE102005033154A1 (en) | Hydraulic arrangement | |
DE2715247C2 (en) | Chassis construction for an all-terrain vehicle with articulation control | |
DE1253886B (en) | Stabilizing device for mobile cranes u. like | |
DE102004012362A1 (en) | Hydraulic arrangement | |
DE202008005035U1 (en) | Work implement and emergency lowering system | |
DE3226452C2 (en) | Disengageable hydro-pneumatic suspension for wheel loaders or the like | |
DE3316085A1 (en) | Pneumatic-tyred construction machine, such as a wheeled loader, wheeled grader or the like | |
DE2038744A1 (en) | Hydraulic suspension for vehicle axles | |
DE2022427A1 (en) | Vehicle with two work tools | |
WO2005052380A1 (en) | Hydraulic control system for mobile equipment | |
DE102005003749B3 (en) | Caddy, especially for demolition tools | |
DE102017206581A1 (en) | Valve arrangement for stem cylinder with two operating states | |
DE2327577C3 (en) | Hydraulic circuit for lifting vehicles | |
DE1247585B (en) | Device to compensate for the stresses occurring in a boom retraction device with two tie rods | |
DE1231163B (en) | Charging device arranged on a motor vehicle | |
DE2717388A1 (en) | HYDROPNEUMATIC SUSPENSION, IN PARTICULAR FOR THE REAR AXLE OF WHEEL LOADERS OR THE SAME WITH LOCKABLE FRONT AXLE | |
DE1214552B (en) | Automatic control device to keep the height of the car body constant for motor vehicles, especially passenger cars | |
DE202004007609U1 (en) | Lifting mechanism for driver's cab has rotational points of main strut and strut for parallel guide fastened to front end of vehicle's frame, with these struts guided from front end of vehicle to rotational points at lower rear end of cab | |
DE1952401C2 (en) | Tractor with overturn protection - has frame with elastic mounting with automatic pressure actuated locking bolts | |
DE2450236C3 (en) | Excavator vehicle |