EP0154159B1 - Appareil de chargement pour une grue - Google Patents

Appareil de chargement pour une grue Download PDF

Info

Publication number
EP0154159B1
EP0154159B1 EP85100991A EP85100991A EP0154159B1 EP 0154159 B1 EP0154159 B1 EP 0154159B1 EP 85100991 A EP85100991 A EP 85100991A EP 85100991 A EP85100991 A EP 85100991A EP 0154159 B1 EP0154159 B1 EP 0154159B1
Authority
EP
European Patent Office
Prior art keywords
crane
oil pressure
loading gear
storage means
component parts
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 - Lifetime
Application number
EP85100991A
Other languages
German (de)
English (en)
Other versions
EP0154159A1 (fr
Inventor
Hermann Kruse
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
Priority to AT85100991T priority Critical patent/ATE51204T1/de
Publication of EP0154159A1 publication Critical patent/EP0154159A1/fr
Application granted granted Critical
Publication of EP0154159B1 publication Critical patent/EP0154159B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
    • B66C1/425—Gripping members engaging only the external or internal surfaces of the articles motor actuated
    • B66C1/427—Gripping members engaging only the external or internal surfaces of the articles motor actuated by hydraulic or pneumatic motors

Definitions

  • the invention relates to a crane loading harness with a manually operated actuating device which is provided with at least one hydraulic working cylinder, that a loading harness head which can be coupled to a load hook of a crane portion has two components which can be moved relative to one another in the vertical direction over a limited stroke and that with the relatively movable components an oil pressure cylinder provided with a memory and drivable by the crane lifting movements is provided, which is connected to the hydraulic working cylinders by means of manually operated control valves.
  • a crane loading harness of a similar type is known (US-A-3 310 335), the known mechanism for gripping tree trunks being controlled either completely automatically without manual actuation or by (manually operated) radio remote control.
  • US-A-3 310 335 the known mechanism for gripping tree trunks being controlled either completely automatically without manual actuation or by (manually operated) radio remote control.
  • This known crane loading harness is thus a closed hydraulic system or a closed oil circuit which, in the aforementioned sense, only needs to be brought into an operational state from the outside with external funds at the start of work, each time after an interruption in operation.
  • Such a crane loading harness which has such a closed hydraulic system or a closed oil circuit, is disadvantageous, since there must always be external means for generating air or gas under pressure at the place of use of the crane loading harness, if it starts work at the start of work required old print is generated.
  • these external means for generating an air or gas pressure themselves represent systems which have to be put into operation, serviced and supplied with external energy means in order to be able to perform their intended function in cooperation with the crane loading gear.
  • the interaction with the hydraulic system of the crane loading gear requires careful operation in order to apply the required air or gas pressure to the crane loading gear. It is an object of the present invention to provide a crane loading harness that is completely free of an external power supply in all working conditions and can thus be used in any location without its own infrastructure, which is simple to use and easy to set up in operation at any time can.
  • the object is achieved according to the invention in that the oil pressure sufficient for a first actuation of the crane loading gear can be generated at the start of work by a small number of crane lifting movements, that the two components of the loading gear head which are movable relative to one another are formed by a support plate and a gripper head plate, wherein the support plate and the gripper head plate are biased in the contraction direction with springs surrounding guide bolts, and in that a manually operable drain valve is arranged between the oil pressure reservoir and the pressure oil reservoir.
  • the advantage of the crane loading harness according to the invention is that the support plate and the gripper head plate are kept at a distance from each other in a defined state in the idle state by the prestressed spring acting between them and when the crane loading harness is put into operation against the spring preload, the support plate and the gripper head plate are moved towards each other the oil pressure of the hydraulic system can be generated at the start of work in the sense of a pumping movement.
  • a crane on which the crane loading gear hangs, lifts it a few times.
  • the required oil pressure is thus brought from zero to the required operating pressure in a very simple way, with these pump movements the support plate and the gripper head plate again and again after the crane loading gear has been placed on a surface, by means of the spring acting between them, to the maximum possible distance from one another will.
  • the open oil circuit provided for the crane loading gear allows use in places where there is no infrastructure in relation to the external energy to be provided for the operation of crane loading gear, since the pressure can be built up independently.
  • Palettengre i fer is a Gripper formation, such as, for example, the utility model G 8305 175.9 shows the Applicant.
  • the essence of the present invention is the actual oil pressure generator, which is located in the head part 11 of the pallet gripper 10.
  • the crane hook eye 12 is located on an upper support plate 13, which is connected to a lower support plate 17 via guide bolts 15.
  • a gripper head plate 14, which is connected to the actual gripper arrangement via a linkage 18, is located between the upper support plate 13 and the lower support plate 17 and can be moved in the vertical direction.
  • the gripper head plate 14 is mounted on the guide pin 15 so as to be displaceable in the vertical direction and is supported on the return springs 16 surrounding the pin 15. It is understandable that when lifting the pallet gripper, i.e. when the crane hook eye 12 moves into the position denoted by 12 ', the gripper head plate 14 moves away from the upper support plate 13 and approaches the lower support plate 17.
  • a piston-cylinder arrangement is formed between the gripper head plate 14 and the lower support plate 17.
  • the support plate 17 carries the piston rod 29 of a hydraulic cylinder 21 which is attached to the underside of the movable gripper head plate 14.
  • This hydraulic cylinder 21 is the actual oil pressure generator; it is arranged together with an oil pressure accumulator 23 and a pressure oil collecting container 22, an overpressure safety valve 24 and an emptying valve 25 below a hood 50 covering the head part 11 of the pallet gripper.
  • a pressure medium feed line 35 and a pressure medium return line 36 lead downward to a control valve 34 to be operated by the operator, which selectively connects the lines 35 and 36 mentioned to the motor connection lines 32, 33 of the working cylinder 31.
  • the hydraulic mode of operation is described below with reference to FIG. 2: With each lifting operation, i.e. each time the crane hook eye 12 comes into position 12 ', the piston rod 29 moves and with it the piston in the cylinder 21 upwards. The pressure oil displaced on the piston rod side reaches the oil pressure accumulator 23 via the check valve 28. The space on the cylinder head side of the cylinder 21 is in constant communication with the pressure oil collecting container 22 via the filter 26, so that oil can be drawn in and discharged as required.
  • the oil pressure accumulator 23 is connected to the control valve 34, for example a control slide, via the feed line 35.
  • the control slide 34 is also connected to the collecting container 22 via a line 36 and the filter 26, so that pressure oil is also released again.
  • two motor feed lines 32 and 33 lead to the two cylinder spaces of the working cylinder 31, so that the piston rod 30 can be extended and retracted for the desired actuation. If the band lever 41 shown schematically in FIG. 2 is moved, starting from the locked neutral position, the line 32 can be pressurized and the line 33 connected to the collecting container or vice versa, depending on the desired direction of actuation.
  • a conventional centering spring 42 can ensure that the control slide 34 remains in the non-actuated state in the blocking neutral position.
  • a manually adjustable throttle 44 is preferably provided in the feed line 35, which can also be bridged by a check valve in a manner known per se, so that the throttle 44 only acts in one direction of actuation.
  • a manually operated drain valve 25 is located between the feed line 35 and the return line 36 leading to the collecting container 22.
  • an overpressure safety valve 24 which, for. B. opens at a pressure of 150 bar. This means that the system cannot be hydraulically overloaded even with frequent up and down movements of the loading gear and inadequate actuation of the working cylinder.
  • the invention is not limited to the embodiment described above, since the invention can also be used for all other types of hoists, in addition to pallet grippers, which additionally have an actuating device which can be operated with hydraulic power and which is to be supplied with pressure oil without interfering supply lines.
  • the linear working cylinder 31 is also to be regarded as an example, since other types of hydraulic motors can also be actuated with the hydraulic auxiliary force, for example when the rotary movements are triggered. Depending on the application, it is also possible to provide more than one working cylinder.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Jib Cranes (AREA)
  • Control And Safety Of Cranes (AREA)

Claims (4)

1. Appareil de chargement pour grue, comportant un dispositif d'actionnement pouvant être activé manuellement et équipé d'au moins un vérin hydraulique de travail, et dans lequel une tête (11) de l'appareil de chargement, qui peut être accouplée à un crochet de charge d'un élément de la grue, comporte deux composants (13, 14) déplaçables l'un par rapport à l'autre sur une course limitée dans une direction verticale, et dans lequel il est prévu, en association avec les composants (13, 14) mobiles l'un par rapport à l'autre, un vérin (21) de production d'une pression d'huile, qui est équipé d'un accumulateur (23), peut être activé par les déplacements de levage de la grue et est relié, par l'intermédiaire de vannes de commande (38), pouvant être actionnées manuellement, aux vérins hydrauliques de travail (31), caractérisé en ce que la pression d'huile suffisante pour un premier actionnement de l'appareil de chargement de la grue peut être produite, au début du travail, par un nombre réduit de déplacements de levage de la grue, que les composants, mobiles l'un par rapport à l'autre, de la tête (11) de l'appareil de chargement sont formés par une plaque de support (13) et une plaque (14) de la tête de grappin, la plaque de support (13) et la plaque (14) de la tête de grappin étant précontraintes dans une direction de contraction, par des ressorts (16) entourant des brochesguides (15), et qu'une vanne de vidage (25), pouvant être actionnée manuellement, est disposée entre l'accumulateur (23) de la pression d'huile et le réservoir (22) d'huile sous pression.
2. Appareil de chargement pour grue selon la revendication 1, caractérisé en ce que pour le chargement de l'accumulateur (23) de la pression d'huile, Il est prévu un vérin de pompage (21), qui est raccordé par l'intermédiaire de soupapes antiretour (27, 28) d'une part à un réservoir d'huile (22) et d'autre part à l'accumulateur (23) de la pression d'huile et est disposé entre deux composants (13, 14), mobiles l'un par rapport à l'autre, de l'appareil de chargement (10).
3. Appareil de chargement pour grue selon la revendication 1 ou 2, caractérisé en ce qu'une soupape de surpression (24) est disposée entre l'accumulateur (23) de la pression d'huile et le réservoir d'huile sous pression (22).
4. Appareil de chargement pour grue selon l'une des revendications 1 à 3, caractérisé en ce qu'un étranglement réglable (44) est disposé dans la canalisation d'alimentation (35) entre l'accumulateur (23) de la pression d'huile et la soupape (34) de commande du vérin de travail.
EP85100991A 1984-02-10 1985-01-31 Appareil de chargement pour une grue Expired - Lifetime EP0154159B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85100991T ATE51204T1 (de) 1984-02-10 1985-01-31 Kranladegeschirr.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843404740 DE3404740A1 (de) 1984-02-10 1984-02-10 Kranladegeschirr
DE3404740 1984-02-10

Publications (2)

Publication Number Publication Date
EP0154159A1 EP0154159A1 (fr) 1985-09-11
EP0154159B1 true EP0154159B1 (fr) 1990-03-21

Family

ID=6227335

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85100991A Expired - Lifetime EP0154159B1 (fr) 1984-02-10 1985-01-31 Appareil de chargement pour une grue

Country Status (3)

Country Link
EP (1) EP0154159B1 (fr)
AT (1) ATE51204T1 (fr)
DE (2) DE3404740A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4120888A1 (de) * 1991-06-25 1993-01-07 Gks Sicherheitstech Gmbh Greifer
DE202004009226U1 (de) * 2004-06-14 2005-11-03 Eberhard, Manfred M. Coilzange
AT11638U3 (de) * 2010-09-06 2011-09-15 Profipack Gmbh Selbstaufladende, kraft- und wegdefinierbare, hydraulische klemmvorrichtung
CN104150348B (zh) * 2014-07-24 2016-06-22 江苏福泰电力设备有限公司 一种液压恒力吊架

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1873712A (en) * 1928-01-05 1932-08-23 Lemaire Maurice Henri Lifting apparatus
US2616683A (en) * 1947-03-17 1952-11-04 Griffiths & Sprague Stevedorin Mechanism for weighing bulk cargo
DE1269316B (de) * 1964-10-07 1968-05-30 Kloeckner Werke Ag Zwischenglied fuer Krangehaenge od. dgl.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310335A (en) * 1965-10-13 1967-03-21 Neil E Shuey Load lifting mechanism
NL132031C (fr) * 1966-05-14
FR1545007A (fr) * 1966-11-19 1968-11-08 Dispositif de chargement avec réglage automatique de l'alignement du centre de gravité et du point de suspension
BE716921A (fr) * 1968-06-20 1968-12-02
DE2217265A1 (de) * 1972-04-11 1973-10-31 Huet Aloysius T Van Ladegabel
DE2423339A1 (de) * 1974-05-14 1975-11-27 Huet Aloysius T Van Ladegabel
NL8300017A (nl) * 1983-01-04 1984-08-01 Kooi Selectie Beheer Bv Inrichting voor het verplaatsen van een stapel voorwerpen zoals dozen of balen.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1873712A (en) * 1928-01-05 1932-08-23 Lemaire Maurice Henri Lifting apparatus
US2616683A (en) * 1947-03-17 1952-11-04 Griffiths & Sprague Stevedorin Mechanism for weighing bulk cargo
DE1269316B (de) * 1964-10-07 1968-05-30 Kloeckner Werke Ag Zwischenglied fuer Krangehaenge od. dgl.

Also Published As

Publication number Publication date
DE3404740A1 (de) 1985-08-14
DE3576677D1 (de) 1990-04-26
ATE51204T1 (de) 1990-04-15
EP0154159A1 (fr) 1985-09-11

Similar Documents

Publication Publication Date Title
DE1930824C3 (de) Greifer für starre Lasten, insbesondere für Spulen mit horizontaler Achse
EP1752587B1 (fr) Agencement hydraulique
EP0309761B1 (fr) Tracteur de piste pour avion avec dispositif d'actionnement de pivotement de la fourche de levage
DE2460519A1 (de) Portalhubwagen
DE2536712C2 (de) Kipphydraulik für Kraftfahrzeuge
DE2726246C3 (de) Hydraulikanlage für den Hubantrieb eines Hubladers
DE2937814C2 (fr)
DE2308810A1 (de) Steuereinrichtung zum automatischen zuschalten einer vielzahl von hydraulikpumpen zur speisung einer vielzahl von hydraulikeinrichtungen
DE2308809A1 (de) Winde, insbesondere autokranwinde
DE1259071B (de) Hydraulische Antriebsvorrichtung fuer einen Drehkran
DE3419363A1 (de) Trageinrichtung fuer container
EP0272338B1 (fr) Mélangeur interne
DE2253741A1 (de) Hydraulisches steuersystem fuer auslegerkran
EP0154159B1 (fr) Appareil de chargement pour une grue
DE4234064C2 (de) Rampenfläche zum Be- und Entladen einer insbesondere durch Seitenwände begrenzten Ladefläche eines Transportfahrzeuges
DE2937764A1 (de) Hydraulisches system
DE19610374A1 (de) Automatische Sicherung von Containern auf Ladeflächen
EP0478924B1 (fr) Installation pour le levage et la descente contrôlés de la caisse d'un véhicule équipé d'une suspension à air à assiette réglée
DE2723305A1 (de) Verriegelbare hydropneumatische federung, insbesondere fuer die vorderachse von radladern o.dgl.
DE2834480C2 (de) Steuereinrichtung eines Schaufelladers od.dgl.
DE60002192T2 (de) Kraftfahrzeug mit kippbarer kabine
DE3131624A1 (de) Greifer mit beeinflussbarem bewegungsverlauf der schneiden von greiferschalen
DE2455227A1 (de) Hebebuehne, insbesondere ladebordwand fuer kraftfahrzeuge
DE4017947A1 (de) Kippvorrichtung
DE1191645B (de) Steuerung fuer hydraulische Antriebe mit einem Steuerventil oder -schieber mit einer Arretierung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19860306

17Q First examination report despatched

Effective date: 19861006

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 51204

Country of ref document: AT

Date of ref document: 19900415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3576677

Country of ref document: DE

Date of ref document: 19900426

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ITF It: translation for a ep patent filed

Owner name: UFFICIO BREVETTI VARESINO

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19901211

Year of fee payment: 7

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19910131

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910204

Year of fee payment: 7

Ref country code: AT

Payment date: 19910204

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910211

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19910220

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19910228

Year of fee payment: 7

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19910319

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19910326

Year of fee payment: 7

EPTA Lu: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19920131

Ref country code: LI

Effective date: 19920131

Ref country code: GB

Effective date: 19920131

Ref country code: CH

Effective date: 19920131

Ref country code: BE

Effective date: 19920131

Ref country code: AT

Effective date: 19920131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19920201

BERE Be: lapsed

Owner name: KRUSE HERMANN

Effective date: 19920131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19920801

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19921103

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 85100991.0

Effective date: 19920904