US3866760A - Rotary tower crane - Google Patents

Rotary tower crane Download PDF

Info

Publication number
US3866760A
US3866760A US369971A US36997173A US3866760A US 3866760 A US3866760 A US 3866760A US 369971 A US369971 A US 369971A US 36997173 A US36997173 A US 36997173A US 3866760 A US3866760 A US 3866760A
Authority
US
United States
Prior art keywords
tower
sidewall
flange means
sections
rotary
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
US369971A
Other languages
English (en)
Inventor
Elmar Reich
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
Application granted granted Critical
Publication of US3866760A publication Critical patent/US3866760A/en
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
    • 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
    • B66C23/28—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 constructed to operate at successively higher levels
    • B66C23/283—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 constructed to operate at successively higher levels with frameworks composed of assembled elements

Definitions

  • a rotary tower crane has a tower constructed from vertically aligned rectangular sections whose crosssectional dimensions can be altered to provide a tower of small or large cross section, as required.
  • Each tower section is formed from uniformly sized sidewall units which are detachably connected to form the sidewalls of the rectangular tower sections.
  • the height or length of each sidewall unit is the height of each rectangular tower section.
  • the width of each sidewall unit is equal to, or is some convenient fraction of, the width necessary to form the sidewalls of a crane tower having the minimum cross-sectional area desired.
  • the width of the sides of the tower sections can be expanded to increase the cross-sectional area of the tower by increasing the number of sidewall units detachably fastened together to form the sidewalls of the tower sections.
  • rotary tower cranes There are two main types of rotary tower cranes. One type has a needle-type boom of variable inclination. The other, and more common, type has a horizontal boom with a crab movably mounted on the boom to move in the lengthwise direction of the boom.
  • the tower of either type of crane can be mounted on an undercarriage adapted to travel on rails, or else is mounted in fixed position on a base.
  • the boom is pivotable with respect to the tower, either being pivotally mounted to the head of the inner tower and/or the inner tower head being rotatably supported about the longitudinal axis of the outer tower.
  • the maximum height of the tower will depend upon the size of the cross section of the tower. The longer the freestanding tower is to be, the larger the cross section of the tower must be, to provide stability and strength to the structure. For example, the cross-sectional dimensions of the tower for tower heights above 30 meters are no longer determined by the lifting capacity of the rotary tower crane, but instead are determined by the stability required to withstand lateral wind pressure.
  • the tower crane To obtain maximum benefit of a tower crane, it is desirable to have the tower crane as close to the work area as possible. Consequently, it is desirable that the tower of the crane have the smallest possible cross section, namely, the cross section sufficient only to handle the desired lifting capacity of the rotary tower crane.
  • the tower of the crane In order to assure stability of such a narrow tower crane against lateral wind pressure, it is necessary to anchor the narrow tower to the building alongside which the rotary tower crane has been placed for operation, at one or more places along the length of the tower.
  • Anchoring the tower to the building is disadvantageous, however, because the anchoring devices required, as well as their installation between the rotary tower crane and the building, are relatively costly. Therefore, it is considered preferable to make the towers freestanding, where practicable, in order to avoid having to use the anchoring procedures described above. Accordingly, relatively high towers have to be built from heavier sections having larger cross sections, while the towers of rotary tower cranes used only for small tower heights use tower sections of smaller cross section.
  • the present invention sets forth a rotary tower crane whose tower is constructed from vertically aligned rectangular sections whose crosssectional dimensions can be altered to provide a tower of small or large cross section, as required.
  • Each tower section is formed from uniformly sized sidewall units which are detachably connected to form the sidewalls of the tower sections.
  • the height or length of each sidewall unit is the height of each tower section.
  • the width of each sidewall unit is equal to, or is some convenient fraction of, the width necessary to form the sidewalls of a crane tower having the minimum cross-sectional area desired.
  • the width of the sides of the tower sections can be expanded to increase the cross-sectional area of the tower by increasing the number of sidewall units detachably fastened together to form the sidewalls of the tower sections.
  • the longitudinal edges of each sidewall unit include flange sections which facilitate joining of adjacent sidewall units in intersecting relationship or in a planar relationship with the assistance of an additional joining adapter.
  • the flange sections at the longitudinal edges of adjoining sidewall units coact to form a strength-increasing structural member.
  • Another oject of the present invention is to provide a rotary tower crane which does not require sections of different size in order to produce towers of different height and/or cross-sectional dimension.
  • Yet another object of the present invention is to provide a rotary tower crane which is constructed of detachable units which can be easily altered and rearranged to modify the dimensions and/or strength of the tower.
  • FIG. 1 is a side view of a rotary tower crane built in accordance with the teachings of the present invention.
  • FIG. 2 is a cross section through an outer tower section of very small cross section for the rotary tower crane of FIG. 1.
  • FIG. 3 is a cross section through an outer tower section of a larger cross section for the rotary tower crane of FIG. 1.
  • a freestanding rotary tower crane is constructed in fixed position on a base 2 alongside a building 1.
  • the rotary tower crane has a horizontal boom 3 with a crab 4 movable thereon in the longitudinal direction of the boom.
  • the boom is pivoted to the inner tower head 5 rotatably mounted on inner tower 6.
  • the inner tower head 6 is inserted into the outer tower 7 and can be telescoped down into the outer tower.
  • the tower 7 consists of a plurality of coaxial, vertically aligned, rectangular sections 8, which are detachably connected to each other by any convenient fastening means (not shown), such as bolting along adjacent ends.
  • Each of the planar walls of the outer tower sections 8 are composed of at least one uniformly sized sidewall unit 9, which units are constructed to be easily detachably connected to each other.
  • each of the sidewall units 9 consists of a flat, planar central part 10 which can be of latticework form fabricated from structural members welded together.
  • An angle iron 11 extends along each of the longitudinal edges of each sidewall unit and is fixed thereto as, for example, by welding.
  • Each angle iron 11 is connected to the flat central portion 10 of the sidewall unit by a flange 13 which extends perpendicular to the plane of the flat central portion 10 and which flange 13 in turn connects to a flange 12 which lies in a plane parallel to the plane of the flat central portion 10.
  • the outer tower section 8 shown in FIG. 2 is composed of only four sidewall units 9. This section 8 is, therefore, the smallest diameter which can enclose the corresponding inner tower 6.
  • the inner tower 6 is supported in the outer tower 7 for axial displacement by means of guides (not shown) in the outer tower, which outer tower is composed of the tower sections 8.
  • the outer tower sections 8 are assembled by detachably connecting the adjacent angle iron 11 of adjacent perpendicular sidewall units 9. As shown in FIG. 2, the angle irons 11 in adjacent perpendicular sidewall units 9 will also be in perpendicular relation to each other, so that perpendicular flanges 13 can be joined to each other and parallel flanges 12 can be joined to each other, thereby forming a hollow box-shaped section 14 which extends longitudinally along each edge of the tower section 8.
  • the adjacent flanges can be connected by any convenient means (not shown), such as bolting.
  • the four braces 14 extending along the edges of the tower section 8 provide a stiffening function which increases the strength of the structure.
  • the cross-sectional dimension of the sections of the tower can be expanded by making the sidewalls of each section from more than one sidewall unit.
  • FIG. 3 shows an outer tower section 8' of enlarged cross section which is formed from eight sidewall units 9, with each side of the enlarged tower section 8' being formed from two sidewall units 9 lying in the same each other by means of an adapter 16 having a U-.
  • the structure formed by connecting the adapter 16 to the perpendicular flanges 13 is also a fairly stiff structural member. This member could be further stiffened by connecting the adjacent parallel flanges to form a closed box.
  • the inner tower 6 shown in FIG. 3 is supported in outer tower 7, which is composed of enlarged sections 8, to allow for axial displacement within tower 7 by means of guides (not shown) in the outer tower 7.
  • the outer tower 7 can be formed completely of enlarged tower sections 8, such as those shown in FIG. 3, or the tower can be formed with even more than two sidewall units 9 forming each side of the tower section.
  • the outer tower 7 may consist of tower sections of varying cross-sectional size with, for example, narrow tower sections 8 in the upper portion of the outer tower and enlarged tower sections in the lower portion of the outer tower. In such instances, transition sections, not shown herein, would be inserted between the narrow and the enlarged tower sections.
  • FIG. 2 shows a narrow tower section in which each sidewall unit is approximately equal to the minimum width necessary to enclose the inner tower, it should be apparent that the sidewall units could be made in widths which are convenient fractions of the minimum width for the outer tower section. So, for example, in FIG. 2, each of the walls of tower section 8 could be formed from two relatively narrow sidewall units which, when assembled, would fit closely about inner tower 6. When tower sections using a narrow sidewall unit are sought to be expanded, they would then not need to be doubled in sizein the manner shown for section 8' in FIG. 3, but could be increased in smaller increments.
  • a rotary tower crane having a tower formed from a plurality of axially aligned tower sections each of said tower sections comprising:
  • each of said planar walls of said tower section formed from at least one uniformly sized sidewall unit
  • each of said sidewall units including a planar center section and two longitudinal edges;
  • each of said connecting flange means detachably connecting adjacent sidewall units to form tower sections having cross sections of standard, closed, geometric forms; each of said connecting flange means extending the length of said sidewall units and comprising:
  • first flange means connected to and intersecting said planar section of said sidewall means; second flange means connected with said first flange means and intersecting said first flange means;
  • first flange means and said second flange means on adjacent sidewall units on adjacently intersecting walls of said tower sections coacting to form closed hollow sections.
  • the rotary tower crane according to claim 1 further comprising adapter means dimensioned to coact with said connecting flange means to enable said connecting flange means from adjacent sidewall units to be detachably connected by conventional fastening means.
  • connecting flange means on said longitudinal edges of said sidewall units comprise angle iron means having the first flange means thereof perpendicularly disposed to said planar central part of said sidewall unit, and said second flange means connected to said first flange means and disposed parallel to said planar central part of said sidewall unit.
  • connecting flange means on said longitudinal edges of said sidewall units comprise angle iron means having the first flange means thereof perpendicularly disposed to said planar central part of said sidewall unit, and said second flange means connected to said first flange means and disposed parallel to said planar central part of said sidewall unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
US369971A 1972-06-15 1973-06-14 Rotary tower crane Expired - Lifetime US3866760A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2229318A DE2229318C3 (de) 1972-06-15 1972-06-15 Turmdrehkran

Publications (1)

Publication Number Publication Date
US3866760A true US3866760A (en) 1975-02-18

Family

ID=5847892

Family Applications (1)

Application Number Title Priority Date Filing Date
US369971A Expired - Lifetime US3866760A (en) 1972-06-15 1973-06-14 Rotary tower crane

Country Status (3)

Country Link
US (1) US3866760A (de)
JP (1) JPS5722877B2 (de)
DE (1) DE2229318C3 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080173605A1 (en) * 2006-12-20 2008-07-24 Hans-Dieter Willim Lattice piece for a large mobile crane and method of erecting the same
WO2013023371A1 (zh) * 2011-08-17 2013-02-21 长沙中联重工科技发展股份有限公司 用于起重机的标准节和塔式起重机
WO2013034784A1 (es) * 2011-09-08 2013-03-14 Linden Comansa, S.L. Torre modular
CN104444856A (zh) * 2014-11-14 2015-03-25 重庆倍精科技研发有限公司 塔吊锁固主体架
CN104528543A (zh) * 2014-12-31 2015-04-22 徐州建机工程机械有限公司 一种上引进方式的塔机标准节结构
CN106081939A (zh) * 2016-08-18 2016-11-09 无锡石油化工起重机有限公司 支撑架加固型塔吊

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3926488A1 (de) * 1989-08-10 1991-02-14 Man Ghh Krantechnik Turmdrehkran
JPH0559693U (ja) * 1992-01-10 1993-08-06 河西工業株式会社 ポータブル式ｃｄプレーヤー
DE102012221031A1 (de) * 2012-11-19 2014-05-22 Terex Cranes Germany Gmbh Kran, Gittermast für einen derartigen Kran und Gittermaststück für einen derartigen Gittermast

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2580503A (en) * 1945-07-23 1952-01-01 Internat Derrick & Equipment C Sectional frame structure
US2988180A (en) * 1960-02-04 1961-06-13 Moore Corp Lee C Skeleton tower
US3407559A (en) * 1965-02-23 1968-10-29 Richier Sa Crane towers and the like hoisting apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1270056A (fr) * 1960-07-12 1961-08-25 Potain & Cie Ets F Perfectionnements aux grues à mât en éléments superposés
FR1436649A (fr) * 1965-02-23 1966-04-29 Richier Sa Mode de constiution des tours de grues et engins similaires

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2580503A (en) * 1945-07-23 1952-01-01 Internat Derrick & Equipment C Sectional frame structure
US2988180A (en) * 1960-02-04 1961-06-13 Moore Corp Lee C Skeleton tower
US3407559A (en) * 1965-02-23 1968-10-29 Richier Sa Crane towers and the like hoisting apparatus

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080173605A1 (en) * 2006-12-20 2008-07-24 Hans-Dieter Willim Lattice piece for a large mobile crane and method of erecting the same
US7703615B2 (en) * 2006-12-20 2010-04-27 Liebherr-Werk Ehingen Gmbh Lattice piece for a large mobile crane and method of erecting the same
WO2013023371A1 (zh) * 2011-08-17 2013-02-21 长沙中联重工科技发展股份有限公司 用于起重机的标准节和塔式起重机
WO2013034784A1 (es) * 2011-09-08 2013-03-14 Linden Comansa, S.L. Torre modular
ES2398834A1 (es) * 2011-09-08 2013-03-22 Linden Comansa, S.L. Torre modular.
EP2759661A1 (de) * 2011-09-08 2014-07-30 Linden Comansa, S.L. Modularer turm
EP2759661A4 (de) * 2011-09-08 2015-02-11 Linden Comansa S L Modularer turm
CN104444856A (zh) * 2014-11-14 2015-03-25 重庆倍精科技研发有限公司 塔吊锁固主体架
CN104444856B (zh) * 2014-11-14 2017-12-15 重庆倍精科技研发有限公司 塔吊锁固主体架
CN104528543A (zh) * 2014-12-31 2015-04-22 徐州建机工程机械有限公司 一种上引进方式的塔机标准节结构
CN106081939A (zh) * 2016-08-18 2016-11-09 无锡石油化工起重机有限公司 支撑架加固型塔吊

Also Published As

Publication number Publication date
DE2229318B2 (de) 1981-02-26
JPS5722877B2 (de) 1982-05-15
DE2229318A1 (de) 1974-01-03
DE2229318C3 (de) 1981-10-29
JPS4949357A (de) 1974-05-13

Similar Documents

Publication Publication Date Title
US3866760A (en) Rotary tower crane
US3708937A (en) Trapezoidal telescoping crane boom
JP5719101B2 (ja) ラチスマストクレーン及びラチスマストブーム
JP2015515425A (ja) 少なくとも１つのクレーンガーダーを備えるクレーン、特に橋形クレーン又はガントリークレーン
EP2372082A2 (de) Gitterträger
US4439064A (en) Tunnel framings
JPH11278792A (ja) タワークレーン用ブーム要素
US3021014A (en) Crane boom structure
US3637043A (en) Articulated aerial device
US3949882A (en) Rotary tower crane
US4013114A (en) Articulated netting, particularly for shuttering
US3557969A (en) Outrigger mast for crane
CN209724390U (zh) 移动式临时支护装置及扩帮支护系统
GB2128957A (en) A boom, for example for lifting apparatus, a platform hoist, or a dredger
DE939110C (de) Portal fuer Hafenkrane
CN206346179U (zh) 一种新型多向土工格栅
CN210013328U (zh) 一种十字柱变箱体柱节点
US3979873A (en) Extending boom construction
CN211228924U (zh) 免焊预埋地笼
CN109537452A (zh) 桥梁检测车的回转台和桥梁检测车
CN220393071U (zh) 一种施工吊具
CN106115514A (zh) 臂架及起重机
CN218665130U (zh) 一种多组合式臂架
CN219280510U (zh) 一种拱肋与桥面系梁的临时支撑结构
CN217756542U (zh) 一种连接结构及双梁门式起重机