EP0731054A1 - Mobiler turmkran - Google Patents

Mobiler turmkran Download PDF

Info

Publication number
EP0731054A1
EP0731054A1 EP95900915A EP95900915A EP0731054A1 EP 0731054 A1 EP0731054 A1 EP 0731054A1 EP 95900915 A EP95900915 A EP 95900915A EP 95900915 A EP95900915 A EP 95900915A EP 0731054 A1 EP0731054 A1 EP 0731054A1
Authority
EP
European Patent Office
Prior art keywords
boom
operation mode
tower crane
mobile
revolving speed
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Withdrawn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
EP95900915A
Other languages
English (en)
French (fr)
Other versions
EP0731054A4 (de
Inventor
Hiroyuki Sawabe
Shinichi Ohta
Takeshi Ushioda
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.)
Komatsu Ltd
Komatsu MEC Corp
Komatsu MEC KK
Original Assignee
Komatsu Ltd
Komatsu MEC Corp
Komatsu MEC KK
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 Komatsu Ltd, Komatsu MEC Corp, Komatsu MEC KK filed Critical Komatsu Ltd
Publication of EP0731054A1 publication Critical patent/EP0731054A1/de
Publication of EP0731054A4 publication Critical patent/EP0731054A4/de
Withdrawn legal-status Critical Current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
    • B66C23/18—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 specially adapted for use in particular purposes
    • B66C23/36—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 specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B66C23/42—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 specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes with jibs of adjustable configuration, e.g. foldable
    • 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
    • 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
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • 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
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/702—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic with a jib extension boom
    • 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
    • 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
    • B66C23/88—Safety gear
    • B66C23/90—Devices for indicating or limiting lifting moment
    • 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
    • B66C23/88—Safety gear
    • B66C23/90—Devices for indicating or limiting lifting moment
    • B66C23/905—Devices for indicating or limiting lifting moment electrical
    • 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
    • B66C23/88—Safety gear
    • B66C23/94—Safety gear for limiting slewing movements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • B66C2700/0321—Travelling cranes
    • B66C2700/0357—Cranes on road or off-road vehicles, on trailers or towed vehicles; Cranes on wheels or crane-trucks
    • B66C2700/0364—Cranes on road or off-road vehicles, on trailers or towed vehicles; Cranes on wheels or crane-trucks with a slewing arm

Definitions

  • This invention relates to a mobile reach tower crane and, more particularly, to a mobile reach tower crane improved in general versatility as a crane.
  • a crane truck provided with an extendable second boom at the upper end of an extendable first boom, has been facilitated to operate as a tower crane by extending and luffing the second boom and standing the first boom in an approximately upright state.
  • the aforementioned crane truck is designed only for using as the tower crane.
  • only one hook can be used, so that a working area and load quantity are limited, resulting in a disadvantage whereby, for example, work is impossible when both the main and auxiliary hooks are used.
  • the present invention is for resolving the aforementioned disadvantages of the conventional art, accordingly, it is an object of the present invention to provide a mobile reach tower crane having high general versatility capable of including the main hook and auxiliary hook and changing a revolving speed in response to the selected operation to be able to operate both as a normal crane and the tower crane.
  • a mobile reach tower crane is characterized by including a main hook provided at a base boom of the second boom, and a auxiliary hook provided at an upper-end boom of the second boom.
  • the controller includes an operation-mode selection switch to choose through the operation-mode selection switch between operation modes of an operation mode B carrying out work with one of the main hook and the auxiliary hook by fixing the first boom and the second boom in a straight line and an operation mode A carrying out work with the auxiliary hook while the first boom stands approximately upright and the second boom is extended and derricked, and limitations in the derrick angles, lengths, rated loads, and boom revolving speeds for the first boom and the second boom may be defined in response to each operation mode selected.
  • the limitation in the boom revolving speed in the operation mode A may be defined at a lower specified value than the limitation in the boom revolving speed in the operation mode B.
  • the controller outputs a stop signal to an automatic stop system to automatically stop an operating drive when values of the derrick angle, the length of the boom, the suspended load and the boom revolving speed exceed specified values during operation.
  • both of the normal crane operation using the main hook or the auxiliary hook and the tower crane operation can be carried out, resulting in improved general versatility.
  • the limitations of derrick angle, the length of the boom, rated load, the boom revolving speed and so on can be defined in response to each operation mode, and further, when the limitation exceeds the specified value, the operation is automatically stopped, consequently, work is carried out in safety without considering what the operation mode is.
  • a vehicle body 1 capable of moving by using wheels 2 includes a revolvably revolving superstructure 3, in which a first boom 4 and a drivers cab 5 are attached to the revolving superstructure 3.
  • the first boom 4 is composed of a multistage boom extending in a multiple of stages, in which the base end of the first boom 4 is rotatably attached on the revolving superstructure 3 to be able to luff with a boom cylinder 23. Further, the upper end of the first boom 4 is rotatably attached with the base end of a second boom 6.
  • the second boom 6 is composed of a multistage boom extending in a multiple of stages.
  • the upper end of the second boom 6 can be luffed with a boom cylinder 7.
  • Wires 8 are respectively suspended from a base boom 61 and an upper-end boom 62 of the second boom 6 to respectively hang a main hook 21 and an auxiliary hook 22 from the upper ends of the wires 8.
  • the base end of the wire 8 is extended along the second boom 6 and the first boom 4, and is wound on a winch 24 provided at the upper side of the base end of the first boom 4.
  • a tower crane operation mode, carrying out work by using the auxiliary hook 22, will be explained below with reference to Fig. 3.
  • the boom revolving speed should be defined to be slower than in the case of the normal crane operation mode carrying out work while using the main hook, or else it would be in danger caused by the increased a circumferential speed of a suspender while revolving. Therefore, in the embodiment, the revolving speed can be controlled. That is, when the tower crane operation mode is selected, oil discharge from a pump 32 is adapted to be sent through a flow control valve 33 to a revolving motor 34 by a diverter valve 31. As a result, the revolving speed of the revolving superstructure 3 can be controlled.
  • the pump 32 shown in Y in Fig. 3 may be changed to a variable pump 35 shown in Fig. 6 to control flow in a pilot line by a magnet diverter valve 36.
  • a part shown as Z in Fig. 3 can be changed to a design as shown in Fig. 7 to control flow in a pilot pressure of the main control valve by a pilot operated valve 38 and a control valve 37.
  • a control system for controlling extension and derrick of the first boom 4 and the second boom 6 includes a controller 10.
  • the controller 10 accepts the length and the angle of the first boom 4 input from a first boom length sensor 12 and a first boom angle sensor 13 which are provided in the first boom 4.
  • the controller 10 accepts the length and the angle of the second boom 6 input from a second boom length sensor 14 and a second boom angle sensor 15, and further accepts a load signal input from a pressure sensor 16 detecting the load and a signal input from a revolving speed sensor 19.
  • the output side of the controller 10 is connected to an automatic stop system 17.
  • an operation mode A and an operation mode B are set.
  • the operation mode A is of a mode in which the first boom 4 stands approximately upright, and the second boom 6 is extended and luffed to be used as the tower crane.
  • the operation mode B is of a mode in which the first boom 4 and the second boom 6 are on a straight line to carry out the normal crane operation.
  • the operation modes A and B are each selected by an operation-mode selection switch 18 (see Fig. 5). More specifically, in the operation mode A, the boom revolving speed caused by the revolving superstructure 3 can be set to be lower than in the operation mode B by controlling the aforementioned oil hydraulic circuit (see Fig. 3). Therefore, a revolving movement speed of the suspender can be controlled, resulting in safeness of work.
  • the operation mode A is selected through the operation-mode selection switch 18.
  • derrick angular limitation for the first boom 4 is defined as, for example, 83-75 degrees
  • the derrick angular limitation for the second boom 6 is defined to protect a terrain angle from having a negative value.
  • a rated load table is set at less than 1.4 tons.
  • the controller 10 After the starting operation, the controller 10 catches an operating attitude, the actual suspender load, the revolving speed and so on based on signal input from the sensors 12 to 16 and 19.
  • the actual suspender load and so on are compared with parameters defined in the operation mode A.
  • an automatic stop signal is output to the automatic stop system 17 to stop the operation, resulting in safeness of work.
  • the operation mode B is selected through the operation-mode selection switch 18.
  • the derrick angular limitation of the second boom 6 is the maximum derrick-up angular ⁇ °, and the terrain angle is protected from having a negative value.
  • ⁇ ° is a small angle, for example, a value of a digit.
  • the length limitation of the second boom 6 is defined as, for example, shorter than 5.5 m, and the rated load table is defined as, for example, less than 4.9 tons.
  • one mobile reach tower crane can be used for both operations of the normal crane operation and the tower crane operation.
  • the working area is enlarged as compared with the conventional walking tower crane, resulting in greatly improved general versatility.
  • the specified limitation for the boom derrick angle and so on can be defined in each operation mode, so that the operation can be carried out while measurement values in the operation are compared, resulting in certain safeness.
  • a normal crane operation and a tower crane operation can be carried out by only one crane truck, resulting in a mobile reach tower crane capable of enlarging a working area, greatly improved general versatility, and ensuring safeness during operation which is caused by setting various limiting values in each operation mode.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
EP95900915A 1993-11-26 1994-11-18 Mobiler turmkran Withdrawn EP0731054A4 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP5319210A JPH07144884A (ja) 1993-11-26 1993-11-26 移動式リーチタワークレーン
JP319210/93 1993-11-26
PCT/JP1994/001948 WO1995014632A1 (fr) 1993-11-26 1994-11-18 Grue distributrice a tour a portee mobile

Publications (2)

Publication Number Publication Date
EP0731054A1 true EP0731054A1 (de) 1996-09-11
EP0731054A4 EP0731054A4 (de) 1997-05-28

Family

ID=18107642

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95900915A Withdrawn EP0731054A4 (de) 1993-11-26 1994-11-18 Mobiler turmkran

Country Status (6)

Country Link
EP (1) EP0731054A4 (de)
JP (1) JPH07144884A (de)
KR (1) KR960705733A (de)
CN (1) CN1037425C (de)
TW (1) TW302016U (de)
WO (1) WO1995014632A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2791966A1 (fr) * 1999-04-12 2000-10-13 Jacques Louis Curial Brevet d'articulation de mat de fleche telescopique coulissant et de son systeme d'articulation
WO2001036312A1 (en) * 1999-11-17 2001-05-25 Timberjack Oy Method in a boom assembly loader and a boom assembly loader
EP1151958A2 (de) * 2000-04-28 2001-11-07 Hiab AB Hydraulischer Kran
WO2002064912A1 (de) * 2001-02-14 2002-08-22 Putzmeister Aktiengesellschaft Vorrichtung zur betätigung des knickmasts eines grossmanipulators sowie grossmanipulator mit einer solchen vorrichtung
EP1477452A1 (de) * 2003-05-12 2004-11-17 FASSI GRU IDRAULICHE S.p.A. Verfahren und Vorrichtung zum Ermitteln der Lasts eines Kranauslegers
EP3431436B1 (de) 2017-07-17 2020-04-15 Manitou Bf Verfahren zur steuerung einer handhabungsmaschine und entsprechende handhabungsmaschine
EP3431435B1 (de) 2017-07-17 2020-04-22 Manitou Bf Steuerung einer fördermaschine

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8936167B2 (en) * 2010-12-17 2015-01-20 Kobelco Cranes Co., Ltd. Crane
CN102120548B (zh) * 2011-04-01 2015-06-17 山西东华机械有限公司 液压伸缩吊臂
AT511234B1 (de) * 2011-04-08 2013-05-15 Palfinger Ag Standsicherheitsüberwachung eines auf einem fahrzeug montierten ladekrans
CN102897674B (zh) * 2012-10-11 2014-09-24 中联重科股份有限公司 一种确定吊装路径的方法及装置
CN102942129A (zh) * 2012-11-18 2013-02-27 苏州蓝王机床工具科技有限公司 高空作业车小吊起重限制装置
CN104261277A (zh) * 2014-10-10 2015-01-07 西安航空学院 一种起重机
CN105800485B (zh) * 2014-12-29 2017-11-21 中联重科股份有限公司 臂架回转速度的控制方法、装置、系统及工程机械
WO2017216944A1 (ja) * 2016-06-17 2017-12-21 株式会社前田製作所 移動式クレーン
CN106219422B (zh) * 2016-08-09 2018-09-25 太原重型机械集团工程技术研发有限公司 伸缩臂起重机
WO2018068071A1 (de) * 2016-10-14 2018-04-19 Palfinger Europe Gmbh Verfahren zur bestimmung einer last, steuerung für hydraulische hebevorrichtung zur ausführung eines solchen verfahrens
IT201800001690A1 (it) * 2018-01-23 2019-07-23 Effer S P A Gru per la movimentazione di carichi.
CN110642164B (zh) * 2019-07-31 2021-08-10 武汉船用机械有限责任公司 折臂伸缩式起重机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2409225A1 (fr) * 1977-11-21 1979-06-15 Creusot Loire Perfectionnement aux grues telescopiques
DE3341287A1 (de) * 1982-12-02 1984-06-07 Krüger GmbH & Co KG, 4300 Essen Lastueberwachungseinrichtung fuer einen auslegerkran
FR2600316A1 (fr) * 1986-06-19 1987-12-24 Fiskars Ab Oy Dispositif de commande pour la fleche d'une grue hydraulique
EP0614845A2 (de) * 1988-12-27 1994-09-14 Kato Works Co., Ltd. Kransicherheitsvorrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5846438B2 (ja) * 1974-08-26 1983-10-17 カブシキガイシヤ タダノテツコウシヨ ブ−ムモ−メントセイゲンソウチ
JPS54151069U (de) * 1978-04-13 1979-10-20
JPS54159566U (de) * 1978-04-27 1979-11-07
JPS63154592U (de) * 1987-03-27 1988-10-11

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2409225A1 (fr) * 1977-11-21 1979-06-15 Creusot Loire Perfectionnement aux grues telescopiques
DE3341287A1 (de) * 1982-12-02 1984-06-07 Krüger GmbH & Co KG, 4300 Essen Lastueberwachungseinrichtung fuer einen auslegerkran
FR2600316A1 (fr) * 1986-06-19 1987-12-24 Fiskars Ab Oy Dispositif de commande pour la fleche d'une grue hydraulique
EP0614845A2 (de) * 1988-12-27 1994-09-14 Kato Works Co., Ltd. Kransicherheitsvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9514632A1 *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2791966A1 (fr) * 1999-04-12 2000-10-13 Jacques Louis Curial Brevet d'articulation de mat de fleche telescopique coulissant et de son systeme d'articulation
WO2001036312A1 (en) * 1999-11-17 2001-05-25 Timberjack Oy Method in a boom assembly loader and a boom assembly loader
EP1151958A3 (de) * 2000-04-28 2004-12-22 Hiab AB Hydraulischer Kran
EP1151958A2 (de) * 2000-04-28 2001-11-07 Hiab AB Hydraulischer Kran
US7657355B2 (en) 2001-02-14 2010-02-02 Putzmeister Concrete Pumps Gmbh Device for actuating a bending mast in a large manipulator and a large manipulator comprising said device
WO2002064912A1 (de) * 2001-02-14 2002-08-22 Putzmeister Aktiengesellschaft Vorrichtung zur betätigung des knickmasts eines grossmanipulators sowie grossmanipulator mit einer solchen vorrichtung
EP1477452A1 (de) * 2003-05-12 2004-11-17 FASSI GRU IDRAULICHE S.p.A. Verfahren und Vorrichtung zum Ermitteln der Lasts eines Kranauslegers
EP3431436B1 (de) 2017-07-17 2020-04-15 Manitou Bf Verfahren zur steuerung einer handhabungsmaschine und entsprechende handhabungsmaschine
EP3431435B1 (de) 2017-07-17 2020-04-22 Manitou Bf Steuerung einer fördermaschine
US11390508B2 (en) 2017-07-17 2022-07-19 Manitou Bf Control of a handling machine
AU2018304429B2 (en) * 2017-07-17 2023-11-16 Manitou Bf Control of a handling machine
AU2018304430B2 (en) * 2017-07-17 2023-11-30 Manitou Bf Control of a handling machine
US11905144B2 (en) 2017-07-17 2024-02-20 Manitou Bf Control of a handling machine

Also Published As

Publication number Publication date
JPH07144884A (ja) 1995-06-06
CN1037425C (zh) 1998-02-18
CN1136304A (zh) 1996-11-20
EP0731054A4 (de) 1997-05-28
KR960705733A (ko) 1996-11-08
WO1995014632A1 (fr) 1995-06-01
TW302016U (en) 1997-04-01

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