US3318463A - Heavy hoisting crane - Google Patents

Heavy hoisting crane Download PDF

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Publication number
US3318463A
US3318463A US428399A US42839965A US3318463A US 3318463 A US3318463 A US 3318463A US 428399 A US428399 A US 428399A US 42839965 A US42839965 A US 42839965A US 3318463 A US3318463 A US 3318463A
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US
United States
Prior art keywords
crane
mast
supporting
platform
supporting bar
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
US428399A
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English (en)
Inventor
Mattson Arne
Angersson Bengt
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
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
Priority claimed from SE1347/64A external-priority patent/SE307645B/xx
Priority claimed from SE3688/64A external-priority patent/SE317790B/xx
Priority claimed from SE4057/64A external-priority patent/SE301433B/xx
Priority claimed from SE13342/64A external-priority patent/SE306889B/xx
Application filed by ASEA AB filed Critical ASEA AB
Application granted granted Critical
Publication of US3318463A publication Critical patent/US3318463A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B66C23/60—Derricks
    • B66C23/605—Derricks employing ships' masts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/10—Arrangement of ship-based loading or unloading equipment for cargo or passengers of cranes

Definitions

  • a hoisting crane for comprising a mainly vertical crane mast, the crane mast supporting bars, a crane arm tumable round a vertical as well as round a horizontal axis and attachment means fixing the position of the crane mast and its supporting bars.
  • the object of the present invention is to provide a heavy hoisting crane which through an extreme simplification of the construction can be manufactured at a relatively low price and at the same time partly depending on the extreme simplification of the construction can be easily dismantled and can be divided up into a number of units of such low weight that the crane can be transported with conventional transport means and can be divided up into a number of units of such low weight that the crane can be transported with conventional transport means and can be erected and dismantled without special auxiliary equipment apart from relatively simple lifting apparatus with relatively small lifting capacity.
  • the invention is characterised in that the said main parts of the crane are removably fixed to each other and to the attachment means of the crane and that the weight of each such unit is less than percent of the maximum lifting capacity of the crane.
  • a heavy hoisting crane manufactured in this way consists substantially of a number of straight bar elements, whose manufacture does not require any specially advanced techniques and which consequently can be manufactured at a relatively small cost.
  • the simple embodiment of the parts of the crane also means that they can be transported by lorry, railway wagon or similar conventional transport means.
  • the simple build-up of the crane also makes it possible to achieve a low Weight for the main parts of the crane.
  • the weight of each undividable unit should be below 10% of the maximum lifting capacity of the crane, but the invention makes it possible in itself that even considerably lower weights can be achieved so that the heaviest part only weighs around five percent or a still smaller part of the total lifting capacity of the crane.
  • the main parts of the crane can have substantially a choice of cross sections, provided that the compressed elements have a sufficient buckling strength.
  • the most simple embodiment and the lightest units are obtained if the cranes mast, arm and supporting bars are made as tube elements with suitable attaching arrangements.
  • the crane according to the invention can be made as a statically determined unit which loads the base only with vertical power components.
  • the attachment means of the crane are fixed in the horizontal plane by being connected with each other with an at least mainly horizontal stay system.
  • This embodiment is suitable for cranes which are occasionally placed on a base of a relatively simple kind which has sufiicient strength but otherwise lacks special attachment points or similar arrangements.
  • the said horizontal stays can in the same way as the other parts of the crane be made with advantage of tube elements.
  • supporting elements are arranged which are suitably pivotally fastened to the main part of the crane.
  • One or several of the supporting elements can be displaceably arranged on the base, for example as sledges or carriages. This is an advantage in such cases when without actually moving the crane it is desirable to change the work section.
  • the attachment means of the crane can, of course, also be fixed in the horizontal plane by being connected to the base on which the crane is supported. This embodiment is specially suitable when the crane is used on special erection places which have previously been made good, for example on board a ship. With this embodiment one or several of the attachment means can be made displaceable in relation to the base, for example so that they are controlled by a rail or some other corresponding rigid guiding means.
  • a specially simple embodiment of a crane according to the invention produced if the crane mast and one of its supporting bars is fastened to a platform which supports the Winch machinery of the crane. It is sufficient to stay the mast with only one additional supporting bar which is preferably arranged to stay the mast in a plane which at least substantially is at right angles to the plane defined by the platform, the crane mast and the first mentioned supporting bar.
  • the lower attachment point of the second supporting bar is made removable so that the angle between the support planes of the crane mast can be varied.
  • the crane mast can be arranged to fold in the longtudinal direction of the platform. It is then also possible the raise the mast with the help of the winch machinery of the crane.
  • a hoisting crane according to the invention is specially suitable on board a ship since it can easily be dismantled when the ship sails, taken from one ship to another and be transported by ship to harbours which do not have lifting apparatus with sufiicient lifting capacity.
  • the form of the crane and the normal construction of a ship are combined in a specially favourable way if the crane is arranged on the ship so that the crane mast and one supporting bar are arranged near one side of the ship.
  • the other supporting bar of the crane mast is fastened at its lower end at the opposite side of the ship.
  • FIG. 1 shows a side view of the crane according to the invention in upright position.
  • FIG. 2 shows another side view at right angles to the view according to FIG. 1.
  • FIG. 3 shows an embodiment of the crane seen from above.
  • FIG. 4 shows the crane in folded position.
  • FIG. 5 shows the bearing of the crane mast.
  • FIG. 6 shows a detail at one of the attachments of the supporting bars.
  • FIG. 1 shows the turnable mast which is supported by two su porting bars 2 and 3.
  • a crane arm 4 is fastened at a horizontal pivot 5.
  • the crane arm 4 is turned with the crane mast 1 and its angle position in relation to the crane mast can be regulated with the help of a luffing wire 14.
  • the crane is further provided with load wires and load hook 16.
  • the load wires form a freehanging block pulley 23 above the load hook 16 and then run over pulley wheels 17 to other pulley wheels 18 at the top of the crane mast and from there through the tubular mast to pulley wheels 19 and further to a winch machinery 20.
  • the lufling wire 14 runs over a number of block pulleys 24 and 25 and over a pulley wheel 21 through the tubular crane mast 1 in the same way as the load wire to a lufiing machinery 22.
  • the lower attachment point of the supporting bar 2 is shown by 6 and this attachment and the winch machinery of the crane is supported by a platform 7.
  • the crane mast 1 is foldably fastened on this platform as can be seen more closely in FIG. 5.
  • the positioning of the supporting bars of the crane 2 and 3 are shown by FIG- URES 2 and 3.
  • the supporting bar 2 and the platform 7 define a'supporting plane and the supporting bar 3 another supporting plane substantially at right angles to the first mentioned.
  • FIG. 2 shows the positioning of the crane on a ship.
  • the deck of the ship is shown by 8, the bulwark by 9 and a load hatch by 10.
  • the platform 7 of the crane is supported by the deck 8 which is provided with suitable strengthening means, not shown.
  • the supporting bar 3 is fastened at an attachment point 13 which is permanently connected with the deck 8 of the ship.
  • the platform 7 is directed in the longitudinal direction of the ship and the crane mast is foldable in the same direction.
  • the attachment points of the crane are fixed in the horizontal plane by being fastened to the deck of the ship.
  • the crane can however be formed as a statically determined unit in itself by attaching a horizontal stay 26 between the attachment point 13 and the foot of the mast. This embodiment is less suitable on ships, but can with advantage be suitable if the crane is more or less occasionally positioned on a permanent base.
  • FIG. 3 shows such an embodiment of the crane. Since the crane is not anchored to the base, the tilting moment of the load must be balanced with the help of counter weights.
  • the counter weights consist in this case of a number of water-filled containers 27, arranged at the lower end of each of the supporting bars.
  • the working area of the crane arm is shown as a sector 28 and the position of this sector can be changed by both or some of the lower attachment points of the supporting bars being made displaceable, for example along a rail 29 on the base.
  • the attachment points of the supporting bars can also be permanent and can be fixed to each other by being connected with the help of a horizontal stay 30, an alternative which is shown in the figure with dashed lines.
  • crane shown is arranged on a quay whose outer edge is shown by 31.
  • FIG. 4 shows the crane in folded position.
  • the crane is provided with a supporting trestle 32 which consists of two bars pivotally arranged at the platform 7 and connected with the one supporting bar 2 of the crane mast, at about its mid-point.
  • the lateral distance between the lower attachment points 40 of the supporting trestle 32 is relatively great, through which the supporting trestle produces such a lateral stability that the crane mast can be raised without further lateral support.
  • a wire 33 is coupled from the winch machinery 20 of the crane to the supporting bar 2, suitably near the attachment point 39 of the supporting trestle. By winching in the wire 33, the crane mast is raised and the supporting bar 2 will then reach such a position that itcan be fastened at its lower attachment point 6. Then the second supporting bar of the crane is moved out to the side and fastened at its corresponding attachment point.
  • FIG. 5 In order to facilitate the raising and folding of the crane mast 1, it is provided with a special bearing construction which is shown in FIG. 5.
  • the crane mast turns round a horizontal shaft 34 which is supported by a support 35 arranged on a turnable base plate 37.
  • the crane mast is shown in folded position and its under side 36 which has a relatively wide contact surface bears when the mast is in upright position against the upper side of the base plate 37.
  • a conical elevation 38 fits in a corresponding opening 41 in the mast and brings about centering of the mast in its upright position.
  • the base plate 37 is journalled in a combined axial and radial bearing 42, shown in the figure as a spherical roller bearing.
  • the base plate 37 is fixed with help of screws 43 or other locking devices in order to facilitate the raising and to unload the bearing 42.
  • the crane mast is at its lowest part provided with attachment plates 44 which make attachments for the shaft 34 as well as for the shaft 5 of the crane arm,
  • FIG. 2 it can be seen that the supporting bar 3 at its lower end is fastened to a special attachment means which comprises a permanent main attachment point 45, a link arm 46 fastened to it and a supporting device 47 fixing the link arm.
  • a link arm at the attachment point means that the crane may be more easily erected, partly because the supporting bar fastened to the link arm is shorter and thereby also lighter and partly because the increased number of bearing points give greater play, which can often be sufficient for avoid.
  • the arrangement also has the advantage that without any increased costs of importance it is possible to have a series of ready-made link arms of different lengths, so that the most suitable of these may be chosen when erecting the crane.
  • FIG. 6 shows a way of effecting an adjustable attachment point at one end of the link arm 46, in this case at the upper end. This is brought about by putting in changeable distance pieces 11 and 12 in an oblong hole 10 in the link arm 46 or the supporting bar 3. The distance pieces 11 and 12 lie against the shaft 13 of the attachment point and against the ends of the oblong hole 10.
  • An adjustable attachment can be combined with for example a screw device for setting the proper length.
  • the parts of the crane can be so large that in spite of their relative low weight they are difiicult to handl This is specially true of the crane arm.
  • the problem can be solved by freeing the crane arm from all the parts which are removably fastened to it of which the load and lufiing wires with accompanying pulleys and attachment devices are the heaviest.
  • the load wire lifting pulley 23, the pulley wheels 17 and luffing wire block pulley 24 are arranged so that they are supported by one and the same shaft 48 in the top of the crane arm 4.
  • a specially simple dismantling of the whole of the wire system is obtained if the shaft 48 is supported in an axial slot 49 in the crane arm top, which slot is open at its outer end, but has a locking device, for example in the form of a cover 50 covering the crane arm top for fixing the shaft 48.
  • Hoisting crane for specially heavy hoisting, comprising a substantially vertical crane mast part, bar parts supporting the crane mast, a crane arm part turnable around a vertical as well as around a horizontal axis and attachment means fixing the position of the crane mast part and its supporting bar parts, said main parts of the crane being removably fixed to each other and to said attachment means, the weight of each such part being less than percent of the maximum lifting capacity of the crane, a platform carrying Winch machinery for the operation of the crane, said crane mast part and one of the supporting bar parts being fastened to the platform, the crane mast part being foldable in the longitudinal direction of the platform, and means including a pivoted 6 support trestle connectable to the raising the mast part.
  • the support trestle straddling the platform so as to have such lateral stability that it is capable of supporting the crane mast part and parts connected thereto during the raising of the crane mast part and the positioning of the supporting bar part supporting the mast laterally relative to the platform.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Jib Cranes (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Synchronous Machinery (AREA)
US428399A 1964-02-03 1965-01-27 Heavy hoisting crane Expired - Lifetime US3318463A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
SE129264 1964-02-03
SE1347/64A SE307645B (no) 1964-02-04 1964-02-04
SE3688/64A SE317790B (no) 1964-03-24 1964-03-24
SE4057/64A SE301433B (no) 1964-04-02 1964-04-02
SE664764 1964-06-01
SE13342/64A SE306889B (no) 1964-11-05 1964-11-05

Publications (1)

Publication Number Publication Date
US3318463A true US3318463A (en) 1967-05-09

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ID=27555286

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Application Number Title Priority Date Filing Date
US428399A Expired - Lifetime US3318463A (en) 1964-02-03 1965-01-27 Heavy hoisting crane

Country Status (8)

Country Link
US (1) US3318463A (no)
BE (1) BE659116A (no)
DE (1) DE1258570B (no)
DK (1) DK126582B (no)
FI (1) FI45312C (no)
GB (1) GB1087435A (no)
NL (1) NL6501269A (no)
NO (1) NO121357B (no)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506791A (en) * 1982-09-01 1985-03-26 Blohm & Voss Ag Ship's derrick
CN104860210A (zh) * 2015-05-20 2015-08-26 中铁上海工程局集团第五工程有限公司 一种装配式动力浮筒组合桅杆吊机装置及其吊装方法
CN115072581A (zh) * 2022-08-23 2022-09-20 临沂飞传建筑材料有限公司 一种建筑材料转运用起重装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2531690A1 (fr) * 1982-08-10 1984-02-17 Ppm Sa Engin a tourelle muni d'une couronne d'orientation amovible et procede de depose de la couronne d'un tel engin
CN111422738A (zh) * 2020-03-16 2020-07-17 中铁大桥局第七工程有限公司 一种缆风绳锚固装置及其使用方法
CN115872284B (zh) * 2022-11-21 2024-03-12 无锡市协兴港口机械有限公司 四连杆门座式起重机的安装方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US808678A (en) * 1904-06-13 1906-01-02 John Peterson Hay and manure gatherer and loader.
US1445136A (en) * 1921-10-25 1923-02-13 Thomas M Gunn Derrick
US1666857A (en) * 1926-07-15 1928-04-17 Hunt Fay Derrick
US1958780A (en) * 1932-02-15 1934-05-15 Clyde Iron Works Stiff leg connecter
US2562086A (en) * 1945-06-05 1951-07-24 Valdemar C Farrell Hoisting apparatus
US3148778A (en) * 1962-12-03 1964-09-15 American Hoist & Derrick Co Stiff leg derrick

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE333809C (de) * 1920-05-18 1921-03-04 Maschf Augsburg Nuernberg Ag Ladevorrichtung fuer Schiffe
US1502989A (en) * 1921-06-25 1924-07-29 Amos S Heffron Stiff-leg derrick
US1719297A (en) * 1927-10-26 1929-07-02 Kimmerle Bros Hoist
AT201812B (de) * 1957-02-08 1959-01-26 Miroslav Mlcak Fahrbarer Drehscheiben-Derrickkran
DE1124651B (de) * 1959-09-22 1962-03-01 Maschf Augsburg Nuernberg Ag Schwimmkran mit einem an einem drehbaren Teil gelagerten Wippausleger

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US808678A (en) * 1904-06-13 1906-01-02 John Peterson Hay and manure gatherer and loader.
US1445136A (en) * 1921-10-25 1923-02-13 Thomas M Gunn Derrick
US1666857A (en) * 1926-07-15 1928-04-17 Hunt Fay Derrick
US1958780A (en) * 1932-02-15 1934-05-15 Clyde Iron Works Stiff leg connecter
US2562086A (en) * 1945-06-05 1951-07-24 Valdemar C Farrell Hoisting apparatus
US3148778A (en) * 1962-12-03 1964-09-15 American Hoist & Derrick Co Stiff leg derrick

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506791A (en) * 1982-09-01 1985-03-26 Blohm & Voss Ag Ship's derrick
CN104860210A (zh) * 2015-05-20 2015-08-26 中铁上海工程局集团第五工程有限公司 一种装配式动力浮筒组合桅杆吊机装置及其吊装方法
CN115072581A (zh) * 2022-08-23 2022-09-20 临沂飞传建筑材料有限公司 一种建筑材料转运用起重装置
CN115072581B (zh) * 2022-08-23 2022-12-02 临沂飞传建筑材料有限公司 一种建筑材料转运用起重装置

Also Published As

Publication number Publication date
FI45312B (no) 1972-01-31
NL6501269A (no) 1965-08-04
NO121357B (no) 1971-02-15
DE1258570B (de) 1968-01-11
DK126582B (da) 1973-07-30
GB1087435A (en) 1967-10-18
FI45312C (fi) 1972-05-10
BE659116A (no) 1965-05-28

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