CN108083142B - A kind of cantilever crane of oil-cylinder variable amplitude loop wheel machine - Google Patents

A kind of cantilever crane of oil-cylinder variable amplitude loop wheel machine Download PDF

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Publication number
CN108083142B
CN108083142B CN201711043529.1A CN201711043529A CN108083142B CN 108083142 B CN108083142 B CN 108083142B CN 201711043529 A CN201711043529 A CN 201711043529A CN 108083142 B CN108083142 B CN 108083142B
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CN
China
Prior art keywords
cantilever crane
root
oil
otic placode
wheel machine
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CN201711043529.1A
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Chinese (zh)
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CN108083142A (en
Inventor
张光锋
胡茂
余峰
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Wuhan Marine Machinery Plant Co Ltd
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Wuhan Marine Machinery Plant Co Ltd
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Priority to CN201711043529.1A priority Critical patent/CN108083142B/en
Publication of CN108083142A publication Critical patent/CN108083142A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/18Cranes 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
    • B66C23/36Cranes 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
    • B66C23/52Floating cranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/62Constructional features or details
    • B66C23/64Jibs
    • B66C23/66Outer or upper end constructions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/62Constructional features or details
    • B66C23/64Jibs
    • B66C23/68Jibs foldable or otherwise adjustable in configuration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/62Constructional features or details
    • B66C23/82Luffing gear
    • B66C23/821Bracing equipment for booms
    • B66C23/826Bracing equipment acting at an inclined angle to vertical and horizontal directions
    • B66C23/828Bracing equipment acting at an inclined angle to vertical and horizontal directions where the angle is adjustable

Abstract

The invention discloses a kind of cantilever cranes of oil-cylinder variable amplitude loop wheel machine, the cantilever crane includes: the cantilever crane root being connected in turn, oil cylinder support portion, in the middle part of cantilever crane and cantilever crane head, cantilever crane root includes two cantilever crane root legs, one end of two cantilever crane root legs is fixed together and is connected with oil cylinder support portion, the other end arranged for interval of two cantilever crane root legs, the sectional area of two cantilever crane root legs is gradually reduced from one end of cantilever crane root leg to the other end, one end in the middle part of cantilever crane is fixedly connected with oil cylinder support portion, sectional area in the middle part of cantilever crane is gradually reduced from one end in the middle part of cantilever crane to the other end, cantilever crane head includes cantilever crane principal arm and cantilever crane auxiliary, the inside of oil cylinder support portion is equipped with the first connecting plate and transition steel tube, the inside of two cantilever crane root legs is equipped with the second connecting plate, first connecting plate and two the second connecting plates are fixedly connected with transition steel tube Together.The invention enables cantilever crane entirety lightweights, improve load-bearing capacity, the strength and stability of cantilever crane.

Description

A kind of cantilever crane of oil-cylinder variable amplitude loop wheel machine
Technical field
The present invention relates to handling machinery field, in particular to a kind of cantilever crane of oil-cylinder variable amplitude loop wheel machine.
Background technique
Loop wheel machine peculiar to vessel is the machinery of cargo lifting, the handling for marine transportation ship, and loop wheel machine peculiar to vessel presses its luffing form The forms such as oil-cylinder variable amplitude, wire rope pulley group luffing and crank and rod luffing can be divided into, wherein oil-cylinder variable amplitude due to its structure it is tight It gathers, simple structure, therefore is widely used on ocean engineering platform or ship.Cantilever crane is the main of oil-cylinder variable amplitude loop wheel machine Component part, as the main bearing member of loop wheel machine peculiar to vessel, the characteristics such as itself structure type, bearing capacity directly affect ship With the service performance and lifting performance of loop wheel machine.
Currently, the cantilever crane that loop wheel machine peculiar to vessel uses is respectively there are two types of type: truss-type cantilever crane and box type arm support, due to truss Formula cantilever crane integral strength and rigidity are weaker, therefore are not suitable for oil-cylinder variable amplitude loop wheel machine, generally use case on oil-cylinder variable amplitude loop wheel machine Arm frame.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems:
According to the force analysis of box type arm support it is found that stress intensity of the existing box type arm support at oil cylinder supporting surface most Greatly, its stress intensity remoter from oil cylinder supporting surface is smaller, and existing box type arm support its cross section from one end to the other end Product is constant, therefore this cantilever crane form design is very unreasonable, not only increases the unnecessary load-bearing of cantilever crane itself, and limit Cantilever crane maximum capacity amount has been made, has been unfavorable for the lightweight of cantilever crane and entire loop wheel machine peculiar to vessel, is unable to give full play oil-cylinder variable amplitude loop wheel machine Transport capacity.
Summary of the invention
In order to solve the problems, such as that existing oil-cylinder variable amplitude cantilever crane load-bearing capacity is smaller and design is unreasonable, the embodiment of the present invention is mentioned A kind of cantilever crane of oil-cylinder variable amplitude loop wheel machine is supplied.The technical solution is as follows:
The embodiment of the invention provides a kind of cantilever crane of oil-cylinder variable amplitude loop wheel machine, the cantilever crane includes: to be connected in turn Cantilever crane root, oil cylinder support portion, in the middle part of cantilever crane and cantilever crane head, the cantilever crane root includes two cantilever crane root legs, two institutes The one end for stating cantilever crane root leg is fixed together and is connected with the oil cylinder support portion, two cantilever crane root legs it is another Arranged for interval is held, the sectional area of two cantilever crane root legs is gradually reduced from one end of the cantilever crane root leg to the other end, described One end in the middle part of cantilever crane is fixedly connected with the oil cylinder support portion, and the sectional area in the middle part of the cantilever crane is by one in the middle part of the cantilever crane It holds to the other end and is gradually reduced, the cantilever crane head includes cantilever crane principal arm and cantilever crane auxiliary, one end of the cantilever crane principal arm and institute The other end in the middle part of cantilever crane to be stated to be fixedly connected, the other end of the cantilever crane principal arm is fixedly connected with one end of the cantilever crane auxiliary, The sectional area of the cantilever crane auxiliary is gradually reduced from cantilever crane auxiliary one end to the other end, and the inside of the oil cylinder support portion is set There are the first connecting plate and transition steel tube, the inside of two cantilever crane root legs is equipped with the second connecting plate, first connecting plate It is fixed together with the transition steel tube with two second connecting plates.
In an implementation of the embodiment of the present invention, the internal vertical in the middle part of the cantilever crane root leg and the cantilever crane in The oil-cylinder variable amplitude loop wheel machine cantilever crane length direction is equipped with multiple diaphragm plates.
In another implementation of the embodiment of the present invention, inner surface is along institute in the middle part of the cantilever crane root leg and the cantilever crane Oil-cylinder variable amplitude loop wheel machine cantilever crane length direction is stated equipped with angle steel.
In another implementation of the embodiment of the present invention, the oil cylinder support portion is equipped with ears structure, the ears Structure is set on two side outer walls of the oil cylinder support portion.
In another implementation of the embodiment of the present invention, the oil cylinder support portion is along the oil-cylinder variable amplitude loop wheel machine cantilever crane Length direction is equipped with three layers of connecting plate.
In another implementation of the embodiment of the present invention, the cantilever crane principal arm is equipped with the master for installing pulley and rises Otic placode is risen, the main raising otic placode is set on the symmetry axis in cantilever crane head length direction, and the cantilever crane auxiliary, which is equipped with, to be used In the secondary raising otic placode of installation pulley, the pair raising otic placode, which is set on the cantilever crane head, deviates the cantilever crane length direction pair Claim the side of axis.
In another implementation of the embodiment of the present invention, the cantilever crane principal arm is equipped with otic placode slot, the otic placode slot It is arranged on the symmetry axis of the cantilever crane principal arm length direction, the main raising otic placode is mounted in the otic placode slot.
In another implementation of the embodiment of the present invention, the main raising otic placode includes: the first otic placode and the second ear For installing the mounting hole of pulley there are two being set on plate, first otic placode and second otic placode.
In another implementation of the embodiment of the present invention, the main raising otic placode one end is equipped with protrusion, the master Raising otic placode the other end is equipped with lifting lug pore structure.
In another implementation of the embodiment of the present invention, the cantilever crane auxiliary one end and the cantilever crane principal arm connect It connects, the cantilever crane auxiliary and the cantilever crane principal arm link position are equipped with pulley base, and cantilever crane auxiliary the other end is equipped with described Secondary raising otic placode.
Technical solution provided in an embodiment of the present invention has the benefit that
The embodiment of the present invention meets the whole of cantilever crane by the structure type for being set as gradually tapering up by the cross section in the middle part of cantilever crane Body stress distribution situation enhances the range of stress that cantilever crane can be born, so that the whole more lightweight of cantilever crane, improves holding for cantilever crane Beijing South Maxpower Technology Co. Ltd's power, strength and stability ensure that the safety of cargo, meanwhile, cantilever crane root is that two cantilever crane root leg one end are fixedly connected, Stable three-legged structure can be formed when the loop wheel machine tower body connection of the spaced apart structure of the other end, the structure and supporting arm frame, is increased The strong stability of cantilever crane, in addition, the connection of cantilever crane root and oil cylinder support portion passes through transition steel tube transition, two cantilever crane root legs Two the second connecting plates of interior setting and the first connecting plate are all welded in transition steel tube, avoid the second connection of cantilever crane root leg Weld stress when plate is connected with the first connecting plate of oil cylinder support portion is concentrated, and the arc structure of transition steel tube ensure that oil cylinder The good conductive of power between support portion and cantilever crane root.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing.
Fig. 1 is a kind of schematic diagram of the cantilever crane of oil-cylinder variable amplitude loop wheel machine provided in an embodiment of the present invention;
Fig. 2 is a kind of side view for oil-cylinder variable amplitude loop wheel machine cantilever crane that Fig. 1 is provided;
Fig. 3 is the structural schematic diagram of a kind of cantilever crane root and oil cylinder support portion junction provided in an embodiment of the present invention;
Fig. 4 is a kind of cantilever crane root leg schematic cross-section provided in an embodiment of the present invention;
Fig. 5 is schematic cross-section in the middle part of a kind of cantilever crane provided in an embodiment of the present invention;
Fig. 6 is a kind of schematic cross-section of oil cylinder support portion provided in an embodiment of the present invention;
Fig. 7 is a kind of cantilever crane head construction schematic diagram provided in an embodiment of the present invention;
Fig. 8 is a kind of structural schematic diagram of main raising otic placode provided in an embodiment of the present invention;
Fig. 9 is a kind of side view for main raising otic placode that Fig. 8 is provided;
Figure 10 is a kind of cantilever crane top view of head that Fig. 7 is provided;
Each symbol indicates that meaning is as follows in figure:
1- cantilever crane root, 10- cantilever crane root leg, the root 11- wing plate, the root 12- web, the second connecting plate of 13-, in 2- cantilever crane Portion, 20- lightening hole, the middle part 21- wing plate, 22- central-web, 3- cantilever crane head, 31- cantilever crane principal arm, 32- cantilever crane auxiliary, 310- Otic placode slot, the main raising otic placode of 311-, 321- pair raising otic placode, 322- pulley base, the first otic placode of 311a-, the second otic placode of 311b-, 311c- lifting lug hole, 311d- protrusion, 4- oil cylinder support portion, 41- ears structure, 42- transition steel tube, 43- support portion partition, 44- First connecting plate, 45- connecting plate, 5- angle steel, 6- diaphragm plate.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention Formula is described in further detail.
The embodiment of the invention provides a kind of cantilever crane of oil-cylinder variable amplitude loop wheel machine, Fig. 1 is one kind provided in an embodiment of the present invention The schematic diagram of the cantilever crane of oil-cylinder variable amplitude loop wheel machine, Fig. 2 is a kind of side view for oil-cylinder variable amplitude loop wheel machine cantilever crane that Fig. 1 is provided, such as Fig. 1,2 Shown, which includes: the cantilever crane root 1 being connected in turn, oil cylinder support portion 4, cantilever crane middle part 2 and cantilever crane head 3, arm Frame root 1 includes two cantilever crane root legs 10, and one end of two cantilever crane root legs 10 is fixed together, two cantilever crane root legs 10 The sectional area of other end arranged for interval, two cantilever crane root legs 10 is gradually reduced from one end of cantilever crane root leg 10 to the other end, cantilever crane The one end at middle part 2 is fixedly connected with oil cylinder support portion 4, in the middle part of cantilever crane the one end of 2 sectional area from the middle part of cantilever crane 2 to the other end by Decrescence small, cantilever crane head 3 includes cantilever crane principal arm 31 and cantilever crane auxiliary 32, one end of cantilever crane principal arm 31 and cantilever crane middle part 2 it is another End is fixedly connected, and the other end of cantilever crane principal arm 31 is fixedly connected with one end of cantilever crane auxiliary 32, the sectional area of cantilever crane auxiliary 32 by 32 one end of cantilever crane auxiliary is gradually reduced to the other end, and the inside of oil cylinder support portion 4 is equipped with the first connecting plate 44 and transition steel tube 42 (referring to Fig. 3), the inside of two cantilever crane root legs 10 are equipped with the second connecting plate 13, and 44 vertical welding of the first connecting plate is in oil cylinder branch In support part 4 on the support portion partition 43 of 10 one end of cantilever crane root leg, the first connecting plate 44 is welded in transition steel tube 42, and two Second connecting plate 13 by two on cantilever crane root leg 10 opposite root webs 12 extend from and from 10 internal stretch of cantilever crane root leg It is fixed together to 42 first connecting plate 44 of transition steel tube and two the second connecting plates 13 with transition steel tube 42.
The embodiment of the present invention meets cantilever crane by the way that in the middle part of cantilever crane 2 cross section is set as the structure type gradually tapered up Integrated stress distribution situation enhances the range of stress that cantilever crane can be born, so that the whole more lightweight of cantilever crane, improves cantilever crane Load-bearing capacity, strength and stability ensure that the safety of cargo, meanwhile, cantilever crane root 1 is that two 10 one end of cantilever crane root leg are fixed The loop wheel machine tower body of connection, the spaced apart structure of the other end, the structure and supporting arm frame can form stable triangle knot when connecting Structure enhances the stability of cantilever crane, in addition, the connection of cantilever crane root 1 and oil cylinder support portion 4 is by 42 transition of transition steel tube, two Two the second connecting plates 13 and the first connecting plate 44 being arranged in a cantilever crane root leg 10 are all welded in transition steel tube 42, are avoided Weld stress when the second connecting plate 13 and 4 first connecting plate 44 of oil cylinder the support portion connection of cantilever crane root leg 10 is concentrated, and mistake The arc structure for crossing steel pipe 42 ensure that the good conductive of power between oil cylinder support portion 4 and cantilever crane root 1.
Specifically, two cantilever crane root legs 10 of cantilever crane root 1 include two root wing plates 11 and two root webs 12, Two root webs 12 include wide end and narrow end, and the width of two root webs 12 is from the wide end of root web 12 to narrow end It is gradually reduced, two root wing plates 11 include wide end and narrow end, and the width of two root wing plates 11 is by root wing plate 11 Wide end is gradually reduced to narrow end, and two root wing plates 11 and two root webs 12 surround body structure, and two root wing plates 11 wide end is connected with the wide end of two root webs 12, the narrow end of the narrow end of two root wing plates 11 and two root webs 12 It is connected.2 include two middle part wing plates 21 and two central-webs 22 in the middle part of cantilever crane, and two central-webs 22 include wide end and narrow End, the width of two central-webs 22 are gradually reduced from the wide end of central-web 22 to narrow end, and two middle part wing plates 21 wrap Wide end and narrow end are included, the width of two middle part wing plates 21 is gradually reduced from the wide end of middle part wing plate 21 to narrow end, two middle parts Wing plate 21 and two central-webs 22 surround body structure, and the width of the wide end and two central-webs 22 of two middle part wing plates 21 End is connected, and the narrow end of two middle part wing plates 21 is connected with the narrow end of two central-webs 22.Cantilever crane head 3 includes cantilever crane principal arm 31 With cantilever crane auxiliary 32, wherein 31 sectional area of cantilever crane principal arm is constant, and the two sides of two blocks of webs of cantilever crane auxiliary 32 are gradually reduced, cantilever crane The side of two blocks of wing plates of auxiliary 32 is gradually reduced, the web and wing plate of cantilever crane auxiliary 32 constitute one section of sectional area to the other end by Decrescence small box-structure.
Preferably, cantilever crane middle part 2 is additionally provided with lightening hole 20, and the weight for lowering cantilever crane entirety makes cantilever crane lightweight.
Specifically, the internal vertical at cantilever crane root leg 10 and cantilever crane middle part 2 is equipped in oil-cylinder variable amplitude loop wheel machine cantilever crane length direction Multiple diaphragm plates 6.2 interior setting diaphragm plate 6, increases the bending resistance and cantilever crane of cantilever crane in the middle part of cantilever crane root 1 and cantilever crane Whole and lateral stability.
Fig. 4 is a kind of cantilever crane root leg schematic cross-section provided in an embodiment of the present invention, and Fig. 5 is provided in an embodiment of the present invention A kind of cantilever crane middle part schematic cross-section, as shown in Figure 4,5,2 inner surfaces are along oil-cylinder variable amplitude loop wheel machine in the middle part of cantilever crane root leg 10 and cantilever crane Cantilever crane length direction is equipped with angle steel 5.Angle steel 5, which is arranged, can enhance the bending resistance of cantilever crane and the stabilization that cantilever crane is whole and lateral Property.
Fig. 6 is a kind of schematic cross-section of oil cylinder support portion provided in an embodiment of the present invention, as shown in figure 5, oil cylinder supports Portion 4 is equipped with ears structure 41, and ears structure 41 is set on 43 two side outer walls of the oil cylinder support portion.Ears structure 41 is set For connecting with cylinder piston rod, convenient for the ponderomotive force that rises on oil cylinder to be transferred on cantilever crane, it ensure that cantilever crane is good to power Conductibility.
As shown in fig. 6, oil cylinder support portion 4 is equipped with three layers of connecting plate 45 along oil-cylinder variable amplitude loop wheel machine cantilever crane length direction.This Three layers of connecting plate 45 are arranged through in the middle part of entire cantilever crane 2 along cantilever crane direction in invention in oil cylinder support portion 4, and with cantilever crane root The angle steel 5 in portion is aligned, and is guaranteed that cantilever crane bearing capacity can be reached swimmingly from oil cylinder loop wheel machine from cantilever crane head 3, is enhanced as stability.
Fig. 7 is a kind of cantilever crane head construction schematic diagram provided in an embodiment of the present invention, as shown in fig. 7, on cantilever crane principal arm 31 Equipped with the main raising otic placode 311 for installing pulley, main raising otic placode 311 is set on the symmetry axis of 3 length direction of cantilever crane head, Cantilever crane auxiliary 32 is equipped with the secondary raising otic placode 321 for installing pulley, and secondary raising otic placode 321, which is set on cantilever crane head 3, to be deviateed The side of cantilever crane length direction symmetry axis.By the way that main raising otic placode 311 and secondary raising otic placode 321 is arranged, and use different ears Plate lifts by crane different tonnage cargos, has avoided one from rising otic placode continuous work and damage, has improved cantilever crane service life, meanwhile, it will Main raising otic placode 311 is set to the symmetrical shaft position on cantilever crane head 3, and secondary raising otic placode 321 is positioned away from 3 symmetry axis of cantilever crane head Side, avoid the case where wirerope of pile warp main, auxiliary lifting otic placode 321 is interfered with each other and collided, ensure that the peace of cargo Entirely.
Fig. 9 is a kind of side view for main raising otic placode that Fig. 8 is provided, as shown in figure 9, cantilever crane principal arm 31 is equipped with otic placode slot 310, otic placode slot 310 is arranged on the symmetry axis of 31 length direction of cantilever crane principal arm, and main raising otic placode 311 is mounted on otic placode slot 310 Interior, main 311 one end of raising otic placode is equipped with protrusion 311d, and main 311 the other end of raising otic placode is equipped with lifting lug hole 311c structure.It is logical The main raising otic placode 311 of 310 location and installation of otic placode slot is crossed, otic placode can be made more securely to be limited in cantilever crane principal arm 31, and lead Rise 311 one end of otic placode be equipped with protrusion 311d be welded on 31 otic placode slot of cantilever crane principal arm, 310 external position can prevent main raising otic placode 311 because It is fallen by gravity or other downward tractive force, main 311 other end of raising otic placode is equipped with lifting lug hole 311c, lifting lug hole 311c It is equally welded on outside 31 otic placode slot 310 of cantilever crane principal arm, prevents main raising otic placode 311 from being loosened by upward tractive force Situation improves the stability of cantilever crane.
As shown in figure 9, main raising otic placode 311 include: the first otic placode 311a and the second otic placode 311b, the first otic placode 311a and For installing the mounting hole of pulley there are two being set on second otic placode 311b.Main 311 both ends of raising otic placode are equipped with the peace of installation pulley Wire rope pulley there are two being set at dress hole, the circular process of wirerope are as follows: lean on proximal arm from main liter of otic placode of span winch rope stretching pile warp The wire rope pulley of 31 top position of frame principal arm, along main raising otic placode 311 around to close to 31 bottom position of cantilever crane principal arm Wirerope, which changes, takes turns and passes through raising hook, finally around to completion in the lifting lug hole 311c on main raising otic placode 311 around process.This Shen Please main raising otic placode 311 is arranged and is made of two otic placodes, wire rope pulley is mounted between two otic placodes, steel wire is facilitated The installation and fixation of rope pulley, prevent wire rope pulley from loosening, and improve the stability of cantilever crane.
Figure 10 is a kind of top view on cantilever crane head that Fig. 7 is provided, as shown in Figure 10,32 one end of cantilever crane auxiliary and cantilever crane Principal arm 31 connects, and cantilever crane auxiliary 32 and 31 link position of cantilever crane principal arm are equipped with pulley base 322, and 32 the other end of cantilever crane auxiliary is equipped with Secondary raising otic placode 321.Setting pulley base 322 and secondary raising otic placode 321 complete the peace of raising hook for installing wire rope pulley Dress.
The foregoing is merely a prefered embodiment of the invention, is not intended to limit the invention, all in the spirit and principles in the present invention Within, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of cantilever crane of oil-cylinder variable amplitude loop wheel machine, which is characterized in that the cantilever crane includes: the cantilever crane root being connected in turn Portion, oil cylinder support portion, cantilever crane middle part and cantilever crane head, the cantilever crane root include two cantilever crane root legs, two cantilever crane roots One end of leg is fixed together and is connected with the oil cylinder support portion, the other end interval cloth of two cantilever crane root legs It sets, the sectional area of two cantilever crane root legs is gradually reduced from one end of the cantilever crane root leg to the other end, in the middle part of the cantilever crane One end be fixedly connected with the oil cylinder support portion, the sectional area in the middle part of the cantilever crane is from one end in the middle part of the cantilever crane to another End is gradually reduced, and the cantilever crane head includes cantilever crane principal arm and cantilever crane auxiliary, in one end of the cantilever crane principal arm and the cantilever crane The other end in portion is fixedly connected, and the other end of the cantilever crane principal arm is fixedly connected with one end of the cantilever crane auxiliary, the cantilever crane The sectional area of auxiliary is gradually reduced from cantilever crane auxiliary one end to the other end, and the inside of the oil cylinder support portion is equipped with first and connects Fishplate bar and transition steel tube, the inside of two cantilever crane root legs are equipped with the second connecting plate, first connecting plate and two institutes The second connecting plate is stated to be fixed together with the transition steel tube,
The cantilever crane root leg includes two root wing plates and two root webs, and two root webs include wide end and narrow End, the width of two root webs are gradually reduced from the wide end of the root web to narrow end, two root wings Plate includes wide end and narrow end, and the width of two root wing plates is gradually subtracted from the wide end of the root wing plate to narrow end It is small,
It include two middle part wing plates and two central-webs in the middle part of the cantilever crane, two central-webs include wide end and narrow End, the width of two central-webs are gradually reduced from the wide end of the central-web to narrow end, two middle part wings Plate includes wide end and narrow end, and the width of two middle part wing plates is gradually subtracted from the wide end of the middle part wing plate to narrow end It is small,
The cantilever crane head includes cantilever crane principal arm and cantilever crane auxiliary, and the sectional area of the cantilever crane principal arm is constant, the cantilever crane auxiliary The two sides of two blocks of webs be gradually reduced, the side of two blocks of wing plates of the cantilever crane auxiliary is gradually reduced.
2. the cantilever crane of oil-cylinder variable amplitude loop wheel machine according to claim 1, which is characterized in that the cantilever crane root leg and the cantilever crane The internal vertical at middle part is equipped with multiple diaphragm plates in the oil-cylinder variable amplitude loop wheel machine cantilever crane length direction.
3. the cantilever crane of oil-cylinder variable amplitude loop wheel machine according to claim 1, which is characterized in that the cantilever crane root leg and the cantilever crane Middle part inner surface is equipped with angle steel along the oil-cylinder variable amplitude loop wheel machine cantilever crane length direction.
4. the cantilever crane of oil-cylinder variable amplitude loop wheel machine according to claim 1, which is characterized in that the oil cylinder support portion is equipped with ears Structure, the ears structure are set on two side outer walls of the oil cylinder support portion.
5. the cantilever crane of oil-cylinder variable amplitude loop wheel machine according to claim 4, which is characterized in that the oil cylinder support portion is along the oil Cylinder luffing loop wheel machine cantilever crane length direction is equipped with three layers of connecting plate.
6. the cantilever crane of oil-cylinder variable amplitude loop wheel machine according to claim 1, which is characterized in that the cantilever crane principal arm is equipped with and is used for The main raising otic placode of pulley is installed, the main raising otic placode is set on the symmetry axis in cantilever crane head length direction, the arm Frame auxiliary is equipped with the secondary raising otic placode for installing pulley, and the pair raising otic placode is set on the cantilever crane head described in deviation The side of cantilever crane length direction symmetry axis.
7. the cantilever crane of oil-cylinder variable amplitude loop wheel machine according to claim 6, which is characterized in that the cantilever crane principal arm is equipped with otic placode Slot, the otic placode slot are arranged on the symmetry axis of the cantilever crane principal arm length direction, and the main raising otic placode is mounted on the ear In board slot.
8. the cantilever crane of oil-cylinder variable amplitude loop wheel machine according to claim 7, which is characterized in that the main raising otic placode includes: For installing the mounting hole of pulley there are two being set on one otic placode and the second otic placode, first otic placode and second otic placode.
9. the cantilever crane of oil-cylinder variable amplitude loop wheel machine according to claim 8, which is characterized in that the main raising otic placode one end is set There is protrusion, described main raising otic placode the other end is equipped with lifting lug pore structure.
10. the cantilever crane of oil-cylinder variable amplitude loop wheel machine according to claim 9, which is characterized in that the cantilever crane auxiliary one end with The cantilever crane principal arm connection, the cantilever crane auxiliary and the cantilever crane principal arm link position are equipped with pulley base, and the cantilever crane auxiliary is another One end is equipped with the secondary raising otic placode.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0408111A1 (en) * 1989-07-13 1991-01-16 Huisman Special Lifting Equipment B.V. Hoisting crane
CN201201863Y (en) * 2008-04-16 2009-03-04 中船华南船舶机械有限公司 Gantry crane for ship
CN103332611A (en) * 2013-04-23 2013-10-02 上海振华重工(集团)股份有限公司 Fabrication method of arm support of crane
CN205151582U (en) * 2015-11-03 2016-04-13 广东高达重工机械实业股份有限公司 Novel rack and pinion luffing single -boom multipurpose stationary crane
CN206266133U (en) * 2016-11-18 2017-06-20 徐州重型机械有限公司 Setting-up arm assembly, super lifting device and crane

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0408111A1 (en) * 1989-07-13 1991-01-16 Huisman Special Lifting Equipment B.V. Hoisting crane
CN201201863Y (en) * 2008-04-16 2009-03-04 中船华南船舶机械有限公司 Gantry crane for ship
CN103332611A (en) * 2013-04-23 2013-10-02 上海振华重工(集团)股份有限公司 Fabrication method of arm support of crane
CN205151582U (en) * 2015-11-03 2016-04-13 广东高达重工机械实业股份有限公司 Novel rack and pinion luffing single -boom multipurpose stationary crane
CN206266133U (en) * 2016-11-18 2017-06-20 徐州重型机械有限公司 Setting-up arm assembly, super lifting device and crane

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