WO2013023347A1 - Structure de flèche pliante et procédé de dépliage et de pliage de la structure de flèche pliante - Google Patents

Structure de flèche pliante et procédé de dépliage et de pliage de la structure de flèche pliante Download PDF

Info

Publication number
WO2013023347A1
WO2013023347A1 PCT/CN2011/078382 CN2011078382W WO2013023347A1 WO 2013023347 A1 WO2013023347 A1 WO 2013023347A1 CN 2011078382 W CN2011078382 W CN 2011078382W WO 2013023347 A1 WO2013023347 A1 WO 2013023347A1
Authority
WO
WIPO (PCT)
Prior art keywords
jib
cable
boom structure
section
folding
Prior art date
Application number
PCT/CN2011/078382
Other languages
English (en)
Chinese (zh)
Inventor
涂凌志
王金华
王洪海
Original Assignee
长沙中联重工科技发展股份有限公司
湖南中联重科专用车有限责任公司
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 长沙中联重工科技发展股份有限公司, 湖南中联重科专用车有限责任公司 filed Critical 长沙中联重工科技发展股份有限公司
Priority to PCT/CN2011/078382 priority Critical patent/WO2013023347A1/fr
Publication of WO2013023347A1 publication Critical patent/WO2013023347A1/fr

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
    • B66C23/18—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
    • B66C23/26—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 for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes

Definitions

  • the present invention relates to a folding boom structure and a method of unfolding and folding the folding boom structure. Background technique
  • a folding boom structure is usually adopted, for example, it is particularly suitable for a hoisting crane for a wind farm. Boom system.
  • the existing folding boom structure is as shown in FIGS. 1 to 4, and includes a main arm 10, a support rod mechanism 20 and a sub-arm 30 mounted on the main arm 10, a hoist and a winding machine and a support rod mechanism.
  • the 20-supported cable 40, the jib 30 includes a jib front section 31 and a jib rear section 32 that are pivotally coupled to each other.
  • the support rod mechanism 20 includes a fixed support rod 21 and a pitch support rod 22 fixed to the main arm 10, the pitch support rod 22 is pivotally connected to the fixed support rod 21, and one end of the cable 40 is connected to The front end of the anterior segment 31 of the jib.
  • FIG. 1 shows a schematic view of the folding boom structure in a folded state, in which the jib 30 of the folding boom structure needs to be deployed to the unfolded state shown in Figure 4.
  • the specific unfolding operation is as follows: First pivoting the pitch support rod 22 and releasing the cable 40 through the hoist, so that the jib front section 31 pivots relative to the jib rear section 32 and lowers the position (eg, lowered to the ground, as shown in FIG. 2) Then, the cable 40 is wound by a hoist and the pivotal position of the jib rear section 32 and the jib front section 31 is lifted by an auxiliary crane (not shown), as shown in FIG. 3; finally, the jib front section 31 and the jib rear section are finally made.
  • the jib 30 needs to be folded from the unfolded state to the folded state, the order of operation being reversed from the order of the above-described unfolding operation.
  • the cable 40 functions as a deployment control in the process of lowering the front section 31 of the jib, and functions as a lifting force to balance the lifting weight during operation. Due to rope The cable is limited by the diameter and provides a limited pulling force, so the lifting weight is generally small, about 100 tons or less.
  • the auxiliary crane is required to complete the unfolding action, and the auxiliary equipment is highly dependent, the preparation time is long, and the efficiency is low.
  • the hook of the auxiliary crane is connected, which is labor intensive, difficult and safe to operate. Poor sex. Summary of the invention
  • the present invention provides a folding boom structure including a main arm, a support rod mechanism and a sub-arm mounted on the main arm, a hoist and being wound by the hoist and by the a steel cable supported by the support rod mechanism, the auxiliary arm including a jib front section and a jib rear section pivotally coupled to each other, wherein one end of the cable is detachably coupled to the jib, the folding arm
  • the frame structure further includes a pull plate, the pull plate including at least a first portion and a second portion that are detachably and pivotally connected, the first portion and the second portion respectively associated with the jib front portion and the support rod mechanism connection.
  • one end of the cable is selectively coupled to the front section of the jib and the rear section of the jib.
  • one end of the cable is selectively coupled to a front end of the front section of the jib and a front end of the rear section of the jib.
  • the pull plate comprises a plurality of pull plate units that are pivotally and detachably connected to each other.
  • the pull plate comprises a wire rope connecting at least two adjacent ones of the pull plate units.
  • the folding boom structure includes locking means for locking the pivotal connection of the front section of the jib and the rear section of the jib.
  • the jib front section and the jib rear section are each provided with a pin hole, and the lock is mounted A lock pin that can be inserted into the pin hole and a drive device that drives the lock pin are included.
  • the support bar mechanism includes a fixed support bar and a pitch support bar, the fixed support bar is fixed on the main arm, and the pitch support bar is pivotally connected to the fixed support bar, Two parts are connected to the pitch support bar.
  • the present invention also provides a method of unfolding a folding boom structure, the method comprising: (a) releasing the cable by the hoist such that the front section of the jib pivots relative to the rear section of the jib and lowers Positioning; (b) connecting the first portion and the second portion; (c) detaching one end of the cable from the jib and connecting to the jib downstream of the original joint; (d) winding the wire by the hoist to tension the pull plate and extending the front section of the jib to be flush with the rear section of the jib.
  • one end of the cable is detached from the front end of the front section of the jib and connected to the front end of the rear section of the jib.
  • the method further comprises: (e) locking the front section of the jib and the rear section of the jib in a state of being stretched to a flush state.
  • the present invention also provides a folding method of a folding boom structure, the method comprising: (a) releasing the cable by the hoist such that the front section of the jib pivots relative to the rear section of the jib and lowers Positioning; (b) disconnecting the first portion and the second portion; (c) detaching one end of the cable from the jib and connecting to the jib at the original joint Upstream; (d) winding the wire by the hoist to fold the front section of the jib and bringing the first portion and the second portion into close proximity to each other.
  • one end of the cable is detached from the front end of the rear section of the jib and connected to the front end of the front section of the jib.
  • the jib can be folded or unfolded together by the pull plate and the steel cable, so that the pull plate and the steel cable are subjected to the load together, the hoisting performance is improved and the requirement for the strength of the steel cable is lowered.
  • the connection position of the cable and the jib it can be folded or unfolded only by the cable and the pull plate, thereby eliminating the need for auxiliary equipment such as auxiliary cranes, and eliminating the need for manual danger. Sexual operation.
  • FIG. 1 to 4 are schematic views illustrating a developing operation of a folding arm frame structure of the prior art
  • Figs. 5 to 9 are views showing a developing operation of an embodiment of the folding arm frame structure of the present invention
  • Fig. 10 is a view showing the structure of a pull plate composed of a pull plate unit of the present invention. Description of the reference numerals
  • Main arm 20 Support rod mechanism 21: Fixed support rod 22: Pitch support rod 30: Sub-arm 31: Front side of jib 32: Rear part of jib 40: Steel rope
  • orientation words such as "up, down, left, and right” as used herein generally refer to the upper, lower, left, and right as shown in the accompanying drawings; "inside and outside”. Means relative to The inside and outside of the outline of each component itself.
  • upstream and downstream directions refer to the direction from the front section of the jib to the rear section of the jib.
  • a folding boom structure comprising a main arm 10, a support rod mechanism 20 and a sub-arm 30 mounted on the main arm 10, a hoist and winding by the hoist And a cable 40 supported by the support bar mechanism 20,
  • the jib 30 includes a jib front section 31 and a jib rear section 32 pivotally coupled to each other, wherein one end of the cable 40 is detachably connected
  • the folding jib structure further includes a pull plate 50, the pull plate 50 including at least a first portion 51 and a second portion 52 that are detachably and pivotally connected, the first portion 51 and the The second portion 52 is coupled to the jib front section 31 and the support rod mechanism 20, respectively.
  • the pull plate 50 can apply a pulling force to the secondary arm 30 together with the cable 40, so that the pull plate 50 and the cable 40 bear the load of the auxiliary arm 30. Therefore, the folding boom structure of the present invention can bear a larger load under the additional pulling force provided by the pull plate 50, thereby improving the lifting performance of the folding boom structure.
  • the auxiliary function is provided by the pull plate 50, the requirement for the strength of the cable 40 can be reduced, so that the cable 40 having a moderate strength can be used, which saves cost.
  • one end of the cable 40 is selectively coupled to the jib front section 31 and the jib rear section 32.
  • the cable 40 can be selectively coupled to the jib front section 31 and the jib rear section 32 in different steps, thereby assisting the pull plate 50. It is easy to complete the folding or unfolding operation. The specific operation will be described in detail below in connection with the method of folding and unfolding the boom structure of the present invention.
  • one end of the cable 40 is selectively coupled to the front end of the jib front section 31 and the front end of the jib rear section 32 to be selectively coupled to the jib front section 31 and the jib At the time of the segment 32, the greatest possible moment is applied to the jib front section 31 or the jib rear section 32.
  • the pull plate 50 includes A plurality of pull plate units 53 that are pivotally and detachably connected to each other.
  • the pull tab 50 can be made “flexible” and adjustable in length by providing pull tab units 53 that are pivotally and detachably coupled to each other.
  • first portion 51 and the second portion 52 shown in FIGS. 5 to 9 are "rigid" (linear shape) for convenience of explanation, but actually the first portion 51 and the second portion 52 may be “flexible” as described above. "Shows a curved shape.
  • the length of the pull plate 50 can be adjusted by providing an appropriate number of pull plate units 53, so that it can be applied to different types of boom structures.
  • the first portion 51 and the second portion 52 may interfere with each other by folding, and may thus be stuck to each other and cannot move. This interference can be avoided by adjusting the length of the pull plate 50 in a timely manner.
  • the pull plate 50 may include a wire rope connecting at least two adjacent ones of the pull plate units 53.
  • a wire rope instead of a partial length, the total weight of the pull plate 50 can be reduced and the cost can be saved.
  • the folding boom structure includes a locking device for locking the pivotal connection of the jib front section 31 and the jib rear section 32, thereby locking the folding boom structure by the locking device Expand the state to work in the expanded state.
  • the locking device may be any suitable mechanism as long as the folding boom structure can be locked in the unfolded state.
  • the jib front section 31 and the jib rear section 32 may each be provided with a pin hole, and the locking device includes a lock pin that can be inserted into the pin hole and a driving device that drives the lock pin.
  • the drive unit can be a hydraulic cylinder or the like.
  • the support bar mechanism 20 may include a fixed support bar 21 and a pitch support bar 22, and the fixed support bar 21 is fixed to the main arm 10, and the pitch support bar 22 It is pivotally connected to the fixed support rod 21, and the second portion 52 is connected to the pitch support rod 22.
  • the cable 40 can be connected to the jib 30 by bypassing the pulley 60 provided on the fixed support rod 21 and bypassing the free end of the pitch support rod 22. Therefore, by making the pitch support The lever 22 pivots relative to the fixed support bar 21, and the length of the cable 40 and the pull plate 50 can be adjusted and can assist in lifting and lowering the jib 30 during folding or unfolding operations.
  • a method of unfolding a folding boom structure (previously the folding boom structure is in a folded state, as shown in Figure 5), the method comprising: (a) releasing the cable through the winch 40, causing the jib front section 31 to pivot relative to the jib rear section 32 and lowering the position (eg, to the ground), as shown in FIG. 6; (b) connecting the first portion 51 and the first a second portion 52; (c) detaching one end of the cable 40 from the jib 30 and connecting to the downstream of the jib 30 at the original joint, as shown in FIG. 7; (d), passing The hoist winds the cable 40 (shown in Figure 8) to tension the pull plate 50 and extend the jib front section 31 to be flush with the jib rear section 32 (Fig. 9). Shown).
  • downstream refers to the direction from the jib front section 31 to the jib rear section 32.
  • the jib rear section 32 is located downstream of the jib front section 31.
  • the first portion 51 and the second portion 52 of the pull plate 50 can be detached in a folded state as shown in FIG.
  • one end of the cable 40 may be from the front section of the jib
  • the front end of the 31 is detached and connected to the front end of the rear section 32 of the jib, thereby applying as much torque as possible to the jib front section 31 or the jib rear section 32 by the cable 40.
  • the first portion 51 and the second portion 52 of the pull plate 50 are gradually displaced to a linear arrangement (ie, tensioned) and arranged in a straight line.
  • the rear auxiliary cable 40 provides a pulling force to the jib 30.
  • the method further includes: (e) locking the jib front section 31 and the jib rear section 32 to be flushed to be flush Status (ie expanded state).
  • the jib 30 can be locked in the deployed state by the locking device, and then the jib 30 can be used for operation.
  • a folding method of a folding boom structure comprising: (a) releasing the cable 40 by the hoist such that the jib front section 31 is opposite to the The jib rear section 32 pivots and lowers the position; (b) disconnects the first portion 51 and the second portion 52; (c) passes one end of the cable 40 from the jib 30 Disassembled and connected to the upstream of the jib 30 at the original joint; (d) winding the cable 40 by the hoist to fold the jib front section 31 and the first portion 51 and The second part 52 is close to each other.
  • upstream refers to the direction from the jib front section 31 to the jib rear section 32.
  • the jib front section 31 is located upstream of the jib rear section 32.
  • one end of the cable 40 may be detached from the front end of the jib rear section 32 and connected to the front end of the jib front section 31, thereby passing the pair of cables 40
  • the arm front section 31 or the jib rear section 32 applies as much torque as possible.
  • first portion 51 and the second portion 52 can be separated to avoid mutual interference of the first portion 51 and the second portion 52.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

La présente invention concerne une structure de flèche pliante et son procédé de pliage et de dépliage. La structure de flèche pliante comprend un bras principal (10), un mécanisme de support (20), un bras secondaire (30) monté sur le bras principal et un câble d'acier (40) enroulé par un treuil et supporté par le mécanisme de support. Le bras secondaire comprend un segment avant de bras secondaire (31) et un segment arrière de bras secondaire (32) raccordés l'un à l'autre de manière pivotante. Une extrémité du câble d'acier est raccordée au bras secondaire de manière démontable. La structure de flèche pliante comprend en outre une plaque de traction (50). La plaque de traction comprend au moins une première partie (51) et une seconde partie (52) démontables qui sont raccordées l'une à l'autre de manière pivotante. La première partie et la seconde partie sont respectivement raccordées au segment avant de bras secondaire et au mécanisme de support. Grâce à la solution technique précédente, le bras secondaire peut être plié ou déplié par le biais de la plaque de traction et du câble d'acier, ce qui permet d'améliorer la performance de levage et de réduire le recours à la résistance du câble d'acier. De plus, des dispositifs auxiliaires tels qu'une grue auxiliaire ne sont plus nécessaires et il n'est plus nécessaire de procéder manuellement à des opérations dangereuses.
PCT/CN2011/078382 2011-08-12 2011-08-12 Structure de flèche pliante et procédé de dépliage et de pliage de la structure de flèche pliante WO2013023347A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/078382 WO2013023347A1 (fr) 2011-08-12 2011-08-12 Structure de flèche pliante et procédé de dépliage et de pliage de la structure de flèche pliante

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/078382 WO2013023347A1 (fr) 2011-08-12 2011-08-12 Structure de flèche pliante et procédé de dépliage et de pliage de la structure de flèche pliante

Publications (1)

Publication Number Publication Date
WO2013023347A1 true WO2013023347A1 (fr) 2013-02-21

Family

ID=47714684

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/078382 WO2013023347A1 (fr) 2011-08-12 2011-08-12 Structure de flèche pliante et procédé de dépliage et de pliage de la structure de flèche pliante

Country Status (1)

Country Link
WO (1) WO2013023347A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112744358A (zh) * 2017-06-23 2021-05-04 Rte电力运输网络公司 提升、吊挂和移动载荷的防回转装置和方法
CN113135511A (zh) * 2021-04-29 2021-07-20 徐州重型机械有限公司 主臂、起重机以及起重机的副臂收放方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2747048A1 (de) * 1976-10-22 1978-04-27 Grues Boilot Pingon Richier S Zusammenklappbarer ausleger fuer einen ausfahrbaren kran
CN2285275Y (zh) * 1996-04-25 1998-07-01 建设部长沙建设机械研究院 一种塔式起重布料两用机
CN201647847U (zh) * 2009-07-23 2010-11-24 中昇建机(南京)重工有限公司 风力发电设备吊装专用吊机
CN101898729A (zh) * 2010-08-17 2010-12-01 上海三一科技有限公司 一种降低起重机臂架重心的方法
CN101920914A (zh) * 2010-06-19 2010-12-22 张培霞 汽车式上回转塔吊
CN101962156A (zh) * 2010-10-18 2011-02-02 南京工业大学 一种可折叠快装塔机

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2747048A1 (de) * 1976-10-22 1978-04-27 Grues Boilot Pingon Richier S Zusammenklappbarer ausleger fuer einen ausfahrbaren kran
CN2285275Y (zh) * 1996-04-25 1998-07-01 建设部长沙建设机械研究院 一种塔式起重布料两用机
CN201647847U (zh) * 2009-07-23 2010-11-24 中昇建机(南京)重工有限公司 风力发电设备吊装专用吊机
CN101920914A (zh) * 2010-06-19 2010-12-22 张培霞 汽车式上回转塔吊
CN101898729A (zh) * 2010-08-17 2010-12-01 上海三一科技有限公司 一种降低起重机臂架重心的方法
CN101962156A (zh) * 2010-10-18 2011-02-02 南京工业大学 一种可折叠快装塔机

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112744358A (zh) * 2017-06-23 2021-05-04 Rte电力运输网络公司 提升、吊挂和移动载荷的防回转装置和方法
CN113135511A (zh) * 2021-04-29 2021-07-20 徐州重型机械有限公司 主臂、起重机以及起重机的副臂收放方法
CN113135511B (zh) * 2021-04-29 2024-05-14 徐州重型机械有限公司 主臂、起重机以及起重机的副臂收放方法

Similar Documents

Publication Publication Date Title
CN102358580B (zh) 折叠臂架结构以及展开和折叠该折叠臂架结构的方法
JP5693031B2 (ja) 移動式リフトクレーンの組立て方法
RU2532204C2 (ru) Расширитель оттяжек для подъемного крана, содержащий его кран и способ его наладки
RU2514561C2 (ru) Самоходный подъемный кран и способ его разборки, транспортирования и наладки
RU2587746C2 (ru) Способ соединения вместе секций узла подвески крана и используемый в нем узел ворота
WO2012159385A1 (fr) Grue, structure de flèche de celle-ci et procédé de levage de la flèche
JP2019069838A (ja) クレーン、ジブ組立て方法
JP6235854B2 (ja) クレーンの組立方法
WO2013023347A1 (fr) Structure de flèche pliante et procédé de dépliage et de pliage de la structure de flèche pliante
JP2016222397A (ja) タワークレーン
JPH107388A (ja) 折りたたみ式ラフィングジブ用オフセットリンク組立体
JP4835209B2 (ja) クレーンのウィンチ取外し方法および上部旋回体
JP2006199484A (ja) クレーンのストラット
JPH10102823A (ja) 送電鉄塔の腕金の取替え作業用デリック装置及びこれを用いた腕金の取替え工法
CN112262098B (zh) 具有两件式副起重臂的移动式起重机和用于架设该移动式起重机的副起重臂系统的方法
JP6003556B2 (ja) 移動式タワークレーンのジブ固定方法
CN107640710B (zh) 具有空间拉线装配部的伸缩吊臂
JP7146032B2 (ja) 分離可能なａフレームを備える移動式クレーン
WO2024018913A1 (fr) Grue et procédé d'assemblage de grue
JP6561574B2 (ja) 移動式クレーン、および移動式クレーンにおけるアタッチメントを起立させる又は伏させる方法
CN220376211U (zh) 履带起重机
CN113816285B (zh) 塔机a字架的安装方法
JP2004256240A (ja) クレーン
JP2016222400A (ja) タワークレーン
JP2016222398A (ja) タワークレーン

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11871024

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11871024

Country of ref document: EP

Kind code of ref document: A1