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US3279329A - Cranes - Google Patents

Cranes Download PDF

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Publication number
US3279329A
US3279329A US399695A US39969564A US3279329A US 3279329 A US3279329 A US 3279329A US 399695 A US399695 A US 399695A US 39969564 A US39969564 A US 39969564A US 3279329 A US3279329 A US 3279329A
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US
United States
Prior art keywords
chambers
motor
portions
fixed
crane
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
US399695A
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English (en)
Inventor
Floer Finn
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.)
BERGENS MEK VERKSTED
BERGENS MEKANISKE VERKSTEDER AS
Original Assignee
BERGENS MEK VERKSTED
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.)
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Publication date
Application filed by BERGENS MEK VERKSTED filed Critical BERGENS MEK VERKSTED
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Publication of US3279329A publication Critical patent/US3279329A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/12—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type
    • 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
    • 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
    • B63B27/16—Arrangement of ship-based loading or unloading equipment for cargo or passengers of lifts or hoists
    • 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
    • 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

Definitions

  • a crane arrangement comprises a combination of a hydraulic rotary motor and a crane arm operatively connected thereto for pivotal movement about an approximately vertical axis of rotation of said motor, the latter comprising motor portions each capable of pivoting over a limited pivotal angle, said portions being coupled together to enable the motor to turn through an angle equal to a multiple of the pivotal angles of said motor portions and to impart this movement to said crane arm.
  • the motor portions each comp-rise two groups of chambers each of which groups is arranged in communication with a corresponding one of the groups of an adjacent motor portion and each group associated with a given motor portion, being adapted to be fed hydraulic fluid under pressure while the remaining group is connected to discharge, the force exerted by the hydraulic fluid within the chambers having the effect of pivoting said motor portions in a given direction.
  • FIGURE 1 is a schematic elevation view of a portion of the crane arrangement in accordance with the present invention
  • FIGURE 2 is a vertical section of the hydraulic rotary motor included in the crane arrangement of FIGURE 1,
  • FIGURE 3 is a plan view including part of the crane arrangement shown in FIGURE 1,
  • FIGURE 4 is a plan view of a base ring used in the crane arrangement of FIGURE 1,
  • FIGURE 5 is a horizontal section taken on the line VV of FIGURE 2,
  • FIGURE 6 is a horizontal section taken on the line VIVI of FIGURE 2,
  • FIGURE 7 is a horizontal section taken on the line VII--VII of FIGURE 2, and
  • FIGURE 8 is a horizontal section taken on the line VIIIVIII of FIGURE 2.
  • FIG. 1 a ships mast 10 is seen in which the latter is joined to a boom or extension arm 11 by a boom bolt 12, which is received in bearings 13.
  • the bearing lugs 14 for these hearings are, as will be seen from FIG. 3, fixed on a supporting plate 15, which is fixed to the upper shaft journal 16 in a hydraulic rotary motor arrangement, designated generally by 17.
  • the construction and mode of operation of the latter will be explained further in the following description.
  • the shaft journal 16 is also received in a horizontal bearing 18, which is fixed to a bracket 19, which is secured to the mast 10. To the bearing 18 there is also secured a holder 21 for a pulley 22 for the hoisting line 23 of the loading winch (not shown).
  • the hydraulic rotary motor arrangement is illustrated in detail in FIG. 2.
  • the afore-mentioned lower shaft journal 26 is fixedly connected to a first, lower boss 33, a shaft 34 and a second, upper boss 35.
  • To the shaft 34 there are fixed two diametrically opposed vanes or wings 36, 37, which extend radially outwards and terminate in alignment with the bosses 33 and 35.
  • These parts 26, 33, 34, 35, 36 and 37 together constitute a rigid unit, which in reality is a rotor in a rotary motor, the housing of which is formed by a uniformly thick pipe 38 which is disposed around these parts and receives them in the lower half of its bore 39.
  • To the inner wall of this bore there are secured two diametrically opposed blocks 40, 41, which extend inwards towards the shaft 34 and bear tightly against the latter and against the inner sides of the bosses 33 and 35.
  • FIGS. 5 and 6, which illustrate cross-sections through the parts, that there is formed in this way pressure chambers 42A and 42B between the vane 36 and the block 40 and the vane 37 and the block 41 respectively, and pressure chambers 43A and 43B between the vane 36 and the block 41 and the vane 37 and the block 40 respectively.
  • the first set of pressure chambers 42A and 42B are connected to each other via a radially extending bore 44 (FIG. 5) and to the conduit 27 via an axially extending bore 45 through the boss 33.
  • the second pressure chambers 43A and 43B are connected to each other via a radially extending bore 46 (FIG. 6), and to the conduit 28 through an axially extending bore 47 through the boss 33.
  • the parts 26, 33, 34, 35, 36 and 37 are received in the lower half of the pipe 38.
  • a rotor with a lower boss 48, a shaft 49, and an upper boss 50.
  • To the upper boss 50 is fixed the upper journal shaft rotary motor arrangement 17.
  • pressure chambers 55A and 55B are formed between the vane 52 and the block 54 and between the vane 51 and the block 53 respectively, and pressure chambers 56A and 56B between the vane 51 and the block 54 and between the vane 52 and the block 53 respectively.
  • the pressure chambers 55A and 55B are connected to each other via a bore 57 (FIG. 7) through the shaft 49, and the pressure chambers 56A and 56B are connected to each other via a bore 58 (FIG. 8).
  • pressure pipes 59, 60 are arranged on the outer side of the pipe 38, of which the former connects the first set of pressure chambers 42A and 42B in FIG.
  • gaskets 61 are shown which seal off the individual parts in the rotary motor.
  • the upper rotor will thus twist or turn relative to the lower, fixed rotor.
  • pressure oil is fed, as mentioned above, to the pressure chambers 55A and 553 through the pressure pipe 59 from the pressure chambers 42A, 42B, and a pressure is therefore exerted against the vanes 51, 52 in the counter-clockwise direction. Since this rotor can turn freely, apart from its connection to the boom, these vanes 51, 52 will be urged in the counterclockwise direction.
  • this pivotal amplitude of 280 represents substantially the maximum effective pivotal angle, as the mast will lock on further pivoting.
  • this pivotal amplitude of 280 represents substantially the maximum effective pivotal angle, as the mast will lock on further pivoting.
  • a higher turning moment in the hydraulic motor by employing three vane rotors.
  • the maximum pivotal angle will be less, namely about 170480", but this can in turn be compensated for by using for example as mentioned three rotors arranged axially one after the other in a common pipe.
  • the embodiment described for a boom-pivoting arrangement is very simple and robust and gives a high turning moment.
  • Two important features of the arrangement are firstly that the radial forces on the pivotal shaft are substantially uniform, since diametrically opposed pressure chambers are employed, and secondly that it is easy to obtain excellent sealing of the pressure oil-containing chambers against the atmosphere and against the pressure-free chambers. This makes it possible to use relatively high pressures in the system, whereby the turning moment can be further increased without having to increase the dimensions of the pivotal arrangement.
  • a hydraulic rotary motor and a crane arm operatively connected thereto for pivotal movement about an approximately vertical axis of rotation of the motor
  • said motor including a pivotable pipe member on the inner wall of which are fixed first and second sets of diametrically opposed dividing walls arranged in spaced apart relation longitudinally thereof, a first motor portion fixedly mounted Within said pipe member and including outwardly directed radial vanes adapted to form with said first set of dividing walls two groups of chambers, a second motor portion pivotably mounted within said pipe member and also including ont- -wardly directed radial vanes adapted to form with said second set of dividing walls two additional groups of chambers, means communicating each group of chambers of said first motor portion with a corresponding one of the groups of the second motor portion, and means for supplying hydraulic fluid under pressure to corresponding groups of chambers of said first and second motor portions while the other corresponding groups are connected to discharge, the force exerted by the hydraulic fluid on said first set of dividing walls and on the radial
  • the means for supplying hydraulic fluid under pressure comprises a pair of conduit means, a hydraulic control valve and a hydraulic pump, said conduit means passing from said pump via said control valve to the first motor portion and each communicating with a corresponding one of the groups of chambers of said first motor portion.
  • a hydraulic rotary motor and a crane arm operatively connected thereto for pivotal movement about an axis of rotation of said motor, said motor comprising a fixed portion, a first portion rotatably mounted with respect to said fixed portion, a second portion rotatably mounted with respect to said first portion, means associated with said port-ions to define two respective groups of chambers between the fixed and the first portion and between the first and second portions, means establishing communication between corresponding chambers ofsaid two respective groups of chambers, and means for supplying pressure fluid to said corresponding chambers to develop a force within the chambers and produce rotation of said first portion and concurrent relative rotation of the second portion with respect to the thus rotated first portion whereby said second portion undergoes absolute rotation with respect to the fixed portion equal to the sum of the relative rotations of the first and second portions, said second portion being adapted for connection with the crane arm to impart angular movement thereto.
  • a hydraulic rotary motor and a crane arm operatively connected thereto for pivotal movement about an axis of rotation of said motor, said motor comprising a plurality of portions arranged successively along its axis, each portion defining two groups of chambers, means communicating each of said groups of chambers with the corresponding groups of the other portions, said portions each including two relatively movable members one of which is common with the next successive portion and means for supplying pressure fluid to either of the groups of chambers while the other group is connected to discharge to develop a force References Cited by the Examiner UNITED STATES PATENTS 691,692 1/1902 Zweigbergk 91167 2,911,956 11/1959 Smith 92-67 2,988,057 6/1961 Litz 91167 MARTIN P. SCHWADRON, Primary Examiner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Jib Cranes (AREA)
US399695A 1963-10-03 1964-09-28 Cranes Expired - Lifetime US3279329A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO15032263 1963-10-03

Publications (1)

Publication Number Publication Date
US3279329A true US3279329A (en) 1966-10-18

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Application Number Title Priority Date Filing Date
US399695A Expired - Lifetime US3279329A (en) 1963-10-03 1964-09-28 Cranes

Country Status (5)

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US (1) US3279329A (de)
DE (1) DE1271941B (de)
GB (1) GB1019687A (de)
NL (1) NL6411471A (de)
SE (1) SE323600B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670627A (en) * 1968-10-15 1972-06-20 Charbonnages De France Device for driving a shaft in rotation
JPS5241493U (de) * 1975-09-18 1977-03-24
US4759186A (en) * 1985-12-26 1988-07-26 Sundstrand Corporation Self-powered rotary actuator utilizing rotation-generated centrifugal head
EP2036850A1 (de) 2007-09-11 2009-03-18 Caterpillar Work Tools B. V. Arbeitswerkzeug für eine Maschine
US20150060707A1 (en) * 2013-08-29 2015-03-05 Vector Horizon Technologies, Llc Electro-hydraulic actuator
US11047506B2 (en) 2013-08-29 2021-06-29 Aventics Corporation Valve assembly and method of cooling

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332244A1 (de) * 1983-09-07 1985-03-21 Gebr. Bode & Co GmbH, 3500 Kassel Antriebsvorrichtung fuer eine drehsaeule, insbesondere zur bewegung von schwenktuerfluegeln an kraftfahrzeugen
IT1236282B (it) * 1989-11-20 1993-02-02 Maurizio Costantini Articolazione con collegamento idraulico rotante in particolare per macchine operatrici.
DE3942775C2 (de) * 1989-12-23 2001-07-05 Hense Systemtechnik Gmbh & Co Hydraulischer Schwenkmotor
DE19634160B4 (de) * 1996-08-23 2008-06-26 Fred Koch Hebevorrichtung
DE202005011280U1 (de) * 2005-07-18 2006-11-23 Kinshofer Greiftechnik Gmbh & Co. Kg Hub-/Schwenkvorrichtung für Ladebordwände und/oder -rampen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US691692A (en) * 1901-07-08 1902-01-21 Thorsten Von Zweigbergk Controlling system.
US2911956A (en) * 1959-01-07 1959-11-10 Bryant Grinder Corp Shaft positioner
US2988057A (en) * 1958-02-06 1961-06-13 Ibm Rotating cylinder positioning mechanism

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL267764A (de) * 1960-08-03

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US691692A (en) * 1901-07-08 1902-01-21 Thorsten Von Zweigbergk Controlling system.
US2988057A (en) * 1958-02-06 1961-06-13 Ibm Rotating cylinder positioning mechanism
US2911956A (en) * 1959-01-07 1959-11-10 Bryant Grinder Corp Shaft positioner

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670627A (en) * 1968-10-15 1972-06-20 Charbonnages De France Device for driving a shaft in rotation
JPS5241493U (de) * 1975-09-18 1977-03-24
JPS5628321Y2 (de) * 1975-09-18 1981-07-06
US4759186A (en) * 1985-12-26 1988-07-26 Sundstrand Corporation Self-powered rotary actuator utilizing rotation-generated centrifugal head
EP2036850A1 (de) 2007-09-11 2009-03-18 Caterpillar Work Tools B. V. Arbeitswerkzeug für eine Maschine
WO2009034144A1 (en) * 2007-09-11 2009-03-19 Caterpillar Work Tools B.V. Work tool for a machine
US8191950B2 (en) 2007-09-11 2012-06-05 Caterpillar Work Tools B.V. Work tool for a machine
US20150060707A1 (en) * 2013-08-29 2015-03-05 Vector Horizon Technologies, Llc Electro-hydraulic actuator
US9897114B2 (en) * 2013-08-29 2018-02-20 Aventics Corporation Electro-hydraulic actuator
US10359061B2 (en) 2013-08-29 2019-07-23 Aventics Corporation Electro-hydraulic actuator
US11047506B2 (en) 2013-08-29 2021-06-29 Aventics Corporation Valve assembly and method of cooling

Also Published As

Publication number Publication date
GB1019687A (en) 1966-02-09
DE1271941B (de) 1968-07-04
NL6411471A (de) 1965-04-05
SE323600B (de) 1970-05-04

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