EP0970915A2 - Flèche de grue - Google Patents

Flèche de grue Download PDF

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Publication number
EP0970915A2
EP0970915A2 EP99250230A EP99250230A EP0970915A2 EP 0970915 A2 EP0970915 A2 EP 0970915A2 EP 99250230 A EP99250230 A EP 99250230A EP 99250230 A EP99250230 A EP 99250230A EP 0970915 A2 EP0970915 A2 EP 0970915A2
Authority
EP
European Patent Office
Prior art keywords
counterweights
boom
crane boom
crane
main
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Withdrawn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
EP99250230A
Other languages
German (de)
English (en)
Inventor
Klaus Dr. Ing. Becker
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0970915A2 publication Critical patent/EP0970915A2/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • B66C23/54—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 with pneumatic or hydraulic motors, e.g. for actuating jib-cranes on tractors

Definitions

  • the invention relates to a crane boom with a vertical pivot axis Main boom rotatably mounted on a support structure according to claim 1.
  • a generic crane boom is known, the one Has support structure on which a rotatable about a vertical pivot axis Main boom is arranged.
  • the main boom is through at one end Extendable jib, which is opposite the main boom by means of a first Adjustment element is pivotable.
  • a counterweight pivotable by means of a second adjusting element At the other end of this main boom is a counterweight pivotable by means of a second adjusting element.
  • the adjustment elements are designed as hydraulic cylinders.
  • a facility is provided to the The jib of the jib automatically changes due to a change in the jib to balance the counterweight.
  • This facility consists of a connecting line between the cylinder for pivoting the Auxiliary boom and the cylinder for pivoting the counterweight.
  • the object of the invention is a in a generic crane boom better use of energy and better stability, especially at large projection to achieve.
  • the solution provides that one on both sides through the main boom longitudinal axis extending vertical plane at a spread angle two to each other Counterweights provided and by means of the two counterweights connecting second adjustment element are synchronously pivotable against each other.
  • Such crane boom is a significantly better utilization of the used Energy achieved because the counterweights with this solution are less lifted and be lowered. This is in the case where the counterweights are perpendicular to the Main boom longitudinal axis pivot axis are pivoted, particularly obvious. With this design of the solution, the Counterweights no longer raised at all. An additional compensation of the Load torque also leads to an improvement in the stability of the Crane.
  • a simple solution for synchronously pivoting the two adjustment elements provides that the device is a hydraulic control device.
  • a simple embodiment for the adjusting elements is designed such that the first and second adjusting element are designed as hydraulic working cylinders.
  • the first working cylinder is of the type Hydraulic pump part of the for actuating the second working cylinder required pressure generated and vice versa.
  • the torque of the counterweight can be easily done increase if both counterweights are each arranged on a rocker arm are.
  • the inclination angle by means of a third adjustment element is adjustable. This enables the counterweights to be used with little energy to move and at the same time completely complete the jib changes of the jib to compensate.
  • Simplification of the counterweight movement can be achieved if each Counterweight is pivotable about a pivot axis and the two Swivel axes run parallel to each other.
  • the counterweights as Extension of the main boom longitudinal axis are aligned in the longitudinal direction.
  • the skew angle is then always less than 90 °, which is the overall construction simplified.
  • a crane boom is shown schematically in a spatial view.
  • the Fig. 1 is a vertical support structure 1 can be removed, on which a horizontal Main boom 2 is supported by a support element 3.
  • the support element 3 is on the support structure 1 rotatably mounted about a vertical axis.
  • the main boom 2 is pivotally attached about a horizontal pivot axis 4.
  • a main boom pivot cylinder 5 is used to carry out the pivoting movement provided that with one end on the main boom 2 and with the other end on Support element 3 is articulated.
  • the main boom 2 is at its front end an auxiliary boom 6 provided on a horizontal pivot axis 7 at Main boom is supported so that a double-armed swivel lever Crane boom forms.
  • the other free end of the working cylinder 8a is articulated on the main boom 2.
  • the auxiliary boom 6 is pivotable by means of the working cylinder 8a, so that in The effective length of the main boom 2 depending on the swivel angle Longitudinal direction (seen from above) is extendable.
  • At the other end of the 1 are two counterweights 9a, 9b on one Rocker arm 10 provided, each at a free end.
  • the two Counterweights 9a, 9b are arranged at an expansion angle ⁇ to one another, on both sides of a vertical plane running through the longitudinal axis of the main boom.
  • the spreading angle ⁇ is equal to the angle that the Include longitudinal directions of the rocker arms 10.
  • Rocker arm 10 is only one possible version.
  • the spread angle ⁇ is the angle between the imaginary connecting lines, each through the center of mass and the Pivot point run.
  • the counterweights 9a, 9b are each about a pivot axis pivotable, the two pivot axes both parallel to each other and run parallel to the main boom longitudinal direction.
  • the synchronous pivoting of the two counterweights 9a, 9b against each other is also carried out by means of Working cylinder 11a formed second adjustment element 11 (see in particular Fig. 3).
  • the two parallel swivel axes can of course also collapse.
  • the counterweights 9a, 9b are changed in terms of control technology by means of a device 12 designed as a hydraulic control device 12a, which with the first and second adjustment element 8, 10 is hydraulically connected.
  • control device 12a ensures that the hydraulic fluid of the first working cylinder at least a part of the actuation of the second Working cylinder required pressure generated and vice versa, whichever of the two cylinders 8a, 11a due to its movement just as Hydraulic pump is effective.
  • the control device 12a merely conducts the hydraulic fluid from one working cylinder 8a or 11a to the other 11a or 8a, preferably from the one piston chamber of the one working cylinder into the piston chamber of the other working cylinder.
  • the connection between the Change in the outreach of the auxiliary boom 6 and the outreach of the Counterweights 9a, 9b when pivoting counterweights 9a, 9b by means of Working cylinder 11a is linear.
  • the parameters of the crane boom must be used be chosen accordingly, d. H. the length of the rocker arm 10, the size of the Counterweight 9a, 9b, the inner diameter of the working cylinder 11a, the Inner diameter of the working cylinder 8a etc.
  • Control device 12a ensure linearization.
  • Fig. 2 shows a side view of the crane boom, which can be seen that the Counterweights 9a, 9b in addition to the main boom longitudinal axis by one Inclination angle ⁇ can be inclined, which is advantageously between 0 ° and 80 ° lies.
  • the inclination angle ⁇ can be hydraulic by means of another one, not shown Working cylinder trained adjusting element to be adjustable.
  • the third Adjusting element then ensures that the inclination angle ⁇ as a function of the spreading angle ⁇ on the basis of a table or formula Contextually adjustable.
  • an adjustable inclination angle ⁇ it is possible to the counterweights 9a, 9b on a coaxial to the main boom longitudinal axis moving cylinder surface in order to increase the energy efficiency of the Crane boom to improve further.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
EP99250230A 1998-07-10 1999-07-09 Flèche de grue Withdrawn EP0970915A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19832645A DE19832645A1 (de) 1998-07-10 1998-07-10 Kranausleger
DE19832645 1998-07-10

Publications (1)

Publication Number Publication Date
EP0970915A2 true EP0970915A2 (fr) 2000-01-12

Family

ID=7874724

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99250230A Withdrawn EP0970915A2 (fr) 1998-07-10 1999-07-09 Flèche de grue

Country Status (5)

Country Link
US (1) US6102220A (fr)
EP (1) EP0970915A2 (fr)
DE (1) DE19832645A1 (fr)
IL (1) IL130668A0 (fr)
NO (1) NO993377L (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1348666A1 (fr) * 2002-03-28 2003-10-01 SMS Synergie Management Service Sytème d'apport d'huile dans la ligne d'équilibrage d'une flèche de grue à portée variable
WO2020167118A1 (fr) * 2019-02-14 2020-08-20 Ihc Holland Ie B.V. Drague rétrocaveuse à contrepoids

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4282441B2 (ja) * 2003-11-10 2009-06-24 株式会社東海 着火器具
GB201117251D0 (en) * 2011-10-05 2011-11-16 Autochair Ltd Hoist mechanism
CN103539025B (zh) * 2012-07-12 2015-10-28 北汽福田汽车股份有限公司 起重机的配重设备及具有其的起重机
US9062824B2 (en) 2013-03-12 2015-06-23 Konecranes Plc Head assembly for jacking tower
RU2535846C1 (ru) * 2013-08-19 2014-12-20 Владимир Никитич Тарасов Способ уравновешивания сил тяжести рабочего оборудования стреловых машин
CN103407915B (zh) * 2013-08-28 2015-01-28 哈尔滨工业大学 一种水平转动式可移动配重机构
NO2694425T3 (fr) * 2015-01-28 2018-04-28

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0110786B1 (fr) 1982-11-26 1988-03-09 S.M.S., Société Montgon Systèmes Flèche de grue à portée variable, avec dispositif d'équilibrage automatique

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE658072A (fr) * 1964-01-20 1900-01-01
US3236391A (en) * 1964-02-24 1966-02-22 Superior Equipment Company Counterweight system for tractors having side-mounted attachments
US3247987A (en) * 1964-03-20 1966-04-26 Lake Chester Rabourn Pipe handling side boom
US3743049A (en) * 1970-07-29 1973-07-03 T Levrini Lifting device with swinging arms
DD275036A1 (de) * 1988-08-25 1990-01-10 Schwermasch Kirow Veb K Gegenlastanordnung fuer auslegerkrane

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0110786B1 (fr) 1982-11-26 1988-03-09 S.M.S., Société Montgon Systèmes Flèche de grue à portée variable, avec dispositif d'équilibrage automatique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1348666A1 (fr) * 2002-03-28 2003-10-01 SMS Synergie Management Service Sytème d'apport d'huile dans la ligne d'équilibrage d'une flèche de grue à portée variable
FR2837808A1 (fr) * 2002-03-28 2003-10-03 Sms Synergie Man Systeme Systeme d'apport d'huile dans la ligne d'equilibrage d'une fleche de grue a portee variable
WO2020167118A1 (fr) * 2019-02-14 2020-08-20 Ihc Holland Ie B.V. Drague rétrocaveuse à contrepoids
NL2022575B1 (en) * 2019-02-14 2020-08-28 Ihc Holland Ie Bv Counterweight Backhoe dredger

Also Published As

Publication number Publication date
IL130668A0 (en) 2000-06-01
US6102220A (en) 2000-08-15
DE19832645A1 (de) 2000-01-13
NO993377L (no) 2000-01-11
NO993377D0 (no) 1999-07-08

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