US3814264A - Double slewing crane construction - Google Patents

Double slewing crane construction Download PDF

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Publication number
US3814264A
US3814264A US00368084A US36808473A US3814264A US 3814264 A US3814264 A US 3814264A US 00368084 A US00368084 A US 00368084A US 36808473 A US36808473 A US 36808473A US 3814264 A US3814264 A US 3814264A
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US
United States
Prior art keywords
crane
support
jib
double
axis
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Expired - Lifetime
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US00368084A
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English (en)
Inventor
E Frick
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.)
CNH Industrial Baumaschinen GmbH
Original Assignee
O&K Orenstein and Koppel GmbH
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Publication of US3814264A publication Critical patent/US3814264A/en
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/06—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
    • C01B21/0615—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with transition metals other than titanium, zirconium or hafnium
    • C01B21/063—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with transition metals other than titanium, zirconium or hafnium with one or more actinides, e.g. UN, PuN
    • 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
    • B66C23/52—Floating cranes
    • B66C23/525—Double slewing cranes on ships
    • 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

Definitions

  • a double slewing crane comprises a vertical column 30 Foreign Application priority Data support which directly supports a first crane there- June 6 [972 German 2227446 above and which rotatably supports a jib bracket for y rotation about the axis of the support and the vertical axis of the first crane.
  • the jib bracket carries a second 212/3 crane and it is revolved with the jib bracket around [58] Fie'ld 58 R 66 the first crane.
  • the drive for revolving the jib bracket with the second crane about the first crane comprises two separate diametrically opposite driving motors [56] References Cited having drive shafts with drive pinions which engage a a gear ring disposed around the first crane and the sup- UNITED STATES PATENTS port Structum 3,684,l04 8/1972 Oda et al. 212/47 1,965,650 7/l97l Germany 212/3 1 I ii a e: it
  • FIG.3 ⁇ xgr L u":1A-f 1 PATENTEDJUH 4 i974 SHEEI 1 0F 3
  • FIG.3
  • This invention relates in general to a construction of cranes and, in particular, to a new and useful double slewing crane which are carried on a common support and with one of them beingmounted on the support for revolving movement about the axis of the other which is carried directly on the support.
  • each jib is rotatable about a common vertical axis and which are also adapted to swivel about foot-end horizontal axes.
  • each jib is rotatable about a common vertical axis and both jibs are mounted on a turntable which is provided with a mast, cross-beam, trestle, or the like, for slinging the hoisting ropes.
  • each crane jib is rotatable atits foot-end about a vertical axis and mounted on a turntable through which a mast of the ship extends.
  • This mast supports a cross-beam provided for slinging the hoisting ropes and it is rotatable to the same extent as the turntable.
  • each crane jib is adapted to swivel about the foot-end vertical axis and the turntable is provided with a swivel drive.
  • the crane jibs may each be mounted on a turntable and both turntables are mounted on a first turntable support. Both jib turntables are provided with separate swivel mechanisms. which are particularly useful in the cooperation of the two slewing cranes during the double work of the crane.
  • This construction must be provided with three toothed rims and four swivel mechanisms including four swivel motors.
  • the known construction requires the use of three live ring connections or three similar rotary displacement seatings which have to absorb the tilting forces.
  • Still another double slewing ship crane of the same construction which has three toothed rims and three displacement seatings which are secure against rotationand tilting but have four instead of only two swivel motors which can be selectively connected to the driving pinions by engaging and disengaging geared clutches.
  • the disadvantage is the requirement for the geared clutch as well as the necessity to provide special locking devices by which the swivel mechanisms along with their cranes are retained.
  • the clutch comprises a vertically shiftable pinion shaft which, in its upper position, engages with its pinion into the swivel mechanism of one of the cranes. In its lower position, it engages by its lower pinion into the swivel mechanism of the main turntable.
  • a double slewing crane which permits each of the single cranes to be brought into any swivelling position and also permits both cranes to work in a double operation.
  • the invention provides a swivel driving mechanism of simple construction which permits the slewing crane to perform all of the desired work both in single and double operation.
  • the invention also provides an arrangement in which the mounting of the crane is simplified and which ensures that the cranes will be secured against rotation and tilting and thereby reduce the costs.
  • the vertical swivel axis of one of the cranes is mounted so as to be coaxial of a rotatable jib bracket which supports the other crane.
  • the rotation drive requires only one rotatable rim for all of the desired operations and only two rotational mechanisms without requiring clutches or particular locking devices.
  • the crane support which is rigidly fixed to the ship may be provided with a geared rim which engages with the pinions of both of the slewing cranes.
  • the driving motors of both rotational drives may be operated in synchronism in order to obtain a simple construction for the double work operation. When the crane is performing a double working operation, only one control operation is necessary to swivel both cranes simultaneously and uniformly.
  • the inventive arrangement it is useful from the standpoint of saving space, to join the rotatable jib bracket to the crane support by means of a live ring connection.
  • the first crane may be joined to the crane support by means of a live ring connection.
  • the two live ring connections are assembled along with a middle ring to a single construction unit and the four-race middle ring is rigidly connected to V the crane support.
  • the first crane may be mounted so as to be rotatable eccentrically about the commonswivel axis.
  • the first crane may be connected to the live ring connection eccentrically in-accordance with another feature of the invention.
  • a double slewing crane which comprises a support with a first crane assembly carried by the support and a second crane assembly carried by a jib bracket which is rotatable around the support and the first crane.
  • a further object of the invention is to provide a double slewing crane particularly for ship use, which is simple in design, rugged in construction and economical to manufacture.
  • FIG. 1 is a partial side elevational view of a double slewing crane constructed in accordance with the invention
  • FIG. 2 is a top plan view of the crane shown in FIG. 1;
  • FIG. 3 is a vertical cross sectional view of the crane shown in FIG. 1.
  • the invention embodied therein comprises a crane which includes an upright crane support or mast l which is rigidly fixed, for example, to a hull of a ship 50.
  • the crane support 1 extends substantially vertically upwardly and carries a conical head 2 at its upper end which is connected at its widened top to a top plate 3.
  • a middle ring 4 of a four-race ball-bearing ring connection is fixed to .the top of the top plate 3 and projects upwardly therefrom.
  • the middle ring 4 includes a bearing mounting portion 4a and a top ring portion 4b which is provided with an external annular gear rim 5.
  • An inner ring 6 of the live ring connection is mounted on the inner side of the bearing'support portion 4a of the middle ring 4 and it is firmly secured to the lower end of a revolving turret portion 7 of a first crane 8.
  • the revolving turret 7 is provided with a bracket 9 which supports a first swivel or rotatable drive 10.
  • the drive 10 includes an electric driving motor 11 having a drive shaft with a drive pinion 12 which is in meshing engagement with the external gear rim 5.
  • the crane 8 is rotated by the swivel drive 10.
  • the crane 8 is a luffing crane which comprises a jib 13 pivoted at its inner end on a horizontalaxis 52 of a mast 54.
  • a luffing rope 14 extends from the crane jib 13 to the mast 54.
  • a hoisting rope 15 engages around a pulley 56 carried at the top of the mast 54.
  • the double crane includes an outer ring 16 which forms the top of a jib bracket 17 which is rotatable around the vertical axis of the first crane 8 and the support 1.
  • a revolving turret 18 of a second crane 19 is secured to the jib bracket 17 and it is of a construction which is substantially the same as the first crane 8.
  • the jib bracket 17 also supports a second swivel drive 20 which includes a motor 21 which drives a pinion 22 which also meshes with the toothed rim 5.
  • the invention provides a construction which permits all of the working operations required from a double slewing crane and, at the same time, it is of a most simple and inexpensive construction.
  • a double slewing crane comprising a support, a first crane assembly carried by said support and having a mast portion with a jib extending outwardly therefrom and pivoted about a substantially horizontal axis, a jib bracket rotatable around said support and the axis of said first crane mast, a second crane assembly carried by said jib bracket and having a mast portion extending upwardly therefrom at a spaced location from themast portion of said first crane, said second crane also having a jib extending outwardly from said mast portion and pivotal at its inner end about a horizontal axis, and drive means carried by said support. for revolving said jib bracket and said second crane around the axis of said first crane and said support.
  • a double slewing crane according to claim 1, wherein said crane support comprises a mast adapted to be connected to a ship, said support having an annular external gear rim, said drive means including a drive motor carried by said first crane and having a drive pinion engaged with said gear rim.
  • a double slewing crane according to claim 1, wherein said support includes an annular gear rim eccentrically arranged in respect to the axis of said first crane and a first drive motor having a drive pinion engaged with said gear rim and being supported on said first crane and a second drive motor having a drive pinion engaged with said gear rim supported on said jib bracket.
  • a double slewing crane according to claim 3, wherein said first and second drive motors can be oper ated in synchronism.
  • a double slewing crane including a live ring connection connected between said support and said jib bracket.
  • a double slewing crane wherein said first crane is also connected to said support by means for a live ring connection','said live ring connection including an intermediate ring portion connected to said support and having a raised portion with an external gear ring, said intermediate portion rotatably supporting said first crane at its inner end and rotatably supporting said jib bracket at its outer end.
  • a double slewing crane including a double ring connection between said support and said first crane assembly, said first crane assembly having an axis of rotation which is eccentric to the axis of rotation of said jib bracket.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Jib Cranes (AREA)
US00368084A 1972-06-06 1973-06-08 Double slewing crane construction Expired - Lifetime US3814264A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2227446A DE2227446C3 (de) 1972-06-06 1972-06-06 Doppelkran

Publications (1)

Publication Number Publication Date
US3814264A true US3814264A (en) 1974-06-04

Family

ID=5846941

Family Applications (1)

Application Number Title Priority Date Filing Date
US00368084A Expired - Lifetime US3814264A (en) 1972-06-06 1973-06-08 Double slewing crane construction

Country Status (15)

Country Link
US (1) US3814264A (es)
JP (2) JPS5550875B2 (es)
AR (1) AR199210A1 (es)
BR (1) BR7304184D0 (es)
DD (1) DD104275A5 (es)
DE (1) DE2227446C3 (es)
ES (1) ES415309A1 (es)
FI (1) FI55803C (es)
FR (1) FR2187670B1 (es)
GB (1) GB1413363A (es)
IE (1) IE37765B1 (es)
IT (1) IT983326B (es)
NL (1) NL173733C (es)
NO (1) NO144340C (es)
SE (1) SE392607B (es)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197953A (en) * 1974-10-08 1980-04-15 Orenstein & Koppel Ag Double slewing crane construction
US4201305A (en) * 1973-10-27 1980-05-06 Orenstein & Koppel Aktiengesellschaft Rotatory crane with plural jibs
US6065620A (en) * 1998-03-27 2000-05-23 Trans World Crane, Incorporated Movable sheave assembly for a crane
US20150110582A1 (en) * 2012-05-24 2015-04-23 Subsea 7 Norway As Handling Loads in Offshore Environments

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2354975C2 (de) * 1972-06-06 1985-10-17 O & K Tagebau und Schiffstechnik, Zweigniederlassung der O & K Orenstein & Koppel AG, 2400 Lübeck Doppelkran
DE2634776C3 (de) * 1976-08-03 1984-05-03 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Mittenfreie, vertikalachsige Wälzlagerdrehverbindung
CN102887438A (zh) * 2011-07-21 2013-01-23 象王重工股份有限公司 电动全变频岩石破碎站维修起重机
CN102992204A (zh) * 2012-10-24 2013-03-27 中船华南船舶机械有限公司 双体甲板起重机
CN103640994A (zh) * 2013-11-25 2014-03-19 无锡起岸重工机械有限公司 船用双拼克令吊
CN108358071A (zh) * 2018-01-16 2018-08-03 张家港市佰坤物资有限公司 一种电解铜板起吊系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1965650A1 (de) * 1969-12-31 1971-07-08 Siemens Ag Doppelkran,insbesondere fuer Schiffe und Hafenanlagen
US3684104A (en) * 1970-05-15 1972-08-15 Mitsubishi Heavy Ind Ltd Twin-type slewing crane

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE549657A (es) *
DE1175662B (de) * 1961-11-10 1964-08-13 Krewel Leuffen Gmbh Verfahren zur Herstellung von substituierten Trichloracetaniliden
DE1960442U (de) * 1965-11-18 1967-05-18 Orenstein & Koppel Ag Schiffsdoppelschwenkkran.
NL6609589A (es) * 1965-11-18 1967-05-19
DE1531631A1 (de) * 1967-11-11 1970-01-15 Demag Kampnagel Gmbh Schiffskranvorrichtung mit mehreren unabhaengig voneinander drehbaren Wippkran-Auslegern
DE1756945A1 (de) * 1968-08-06 1970-09-17 Krupp Gmbh Doppeldrehkran
DE1965651A1 (de) * 1969-12-31 1971-07-08 Siemens Ag Kran
GB1265109A (es) * 1970-06-10 1972-03-01
JPS5550875A (en) * 1978-10-11 1980-04-14 Eiko Shioda Vitamin-enriched instant food

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1965650A1 (de) * 1969-12-31 1971-07-08 Siemens Ag Doppelkran,insbesondere fuer Schiffe und Hafenanlagen
US3684104A (en) * 1970-05-15 1972-08-15 Mitsubishi Heavy Ind Ltd Twin-type slewing crane

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4201305A (en) * 1973-10-27 1980-05-06 Orenstein & Koppel Aktiengesellschaft Rotatory crane with plural jibs
US4197953A (en) * 1974-10-08 1980-04-15 Orenstein & Koppel Ag Double slewing crane construction
US6065620A (en) * 1998-03-27 2000-05-23 Trans World Crane, Incorporated Movable sheave assembly for a crane
US20150110582A1 (en) * 2012-05-24 2015-04-23 Subsea 7 Norway As Handling Loads in Offshore Environments
US9457874B2 (en) * 2012-05-24 2016-10-04 Subsea 7 Norway As Handling loads in offshore environments

Also Published As

Publication number Publication date
FI55803C (fi) 1979-10-10
JPS5133449A (es) 1976-03-22
ES415309A1 (es) 1976-02-01
BR7304184D0 (pt) 1974-07-11
JPS4949355A (es) 1974-05-13
JPS605520B2 (ja) 1985-02-12
NL173733B (nl) 1983-10-03
NO144340C (no) 1981-08-12
NL173733C (nl) 1984-03-01
AR199210A1 (es) 1974-08-14
JPS5550875B2 (es) 1980-12-20
SE392607B (sv) 1977-04-04
DD104275A5 (es) 1974-03-05
NL7307861A (es) 1973-12-10
IE37765L (en) 1973-12-06
IE37765B1 (en) 1977-10-12
NO144340B (no) 1981-05-04
DE2227446C3 (de) 1983-11-24
DE2227446A1 (de) 1974-01-03
FR2187670B1 (es) 1977-12-30
FI55803B (fi) 1979-06-29
FR2187670A1 (es) 1974-01-18
IT983326B (it) 1974-10-31
DE2227446B2 (de) 1975-12-18
GB1413363A (en) 1975-11-12

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