CN108083142A - A kind of arm support of oil-cylinder variable amplitude loop wheel machine - Google Patents

A kind of arm support of oil-cylinder variable amplitude loop wheel machine Download PDF

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Publication number
CN108083142A
CN108083142A CN201711043529.1A CN201711043529A CN108083142A CN 108083142 A CN108083142 A CN 108083142A CN 201711043529 A CN201711043529 A CN 201711043529A CN 108083142 A CN108083142 A CN 108083142A
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CN
China
Prior art keywords
arm support
arm
support
oil
otic placode
Prior art date
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Granted
Application number
CN201711043529.1A
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Chinese (zh)
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CN108083142B (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
Application granted granted Critical
Publication of CN108083142B publication Critical patent/CN108083142B/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 arm support of oil-cylinder variable amplitude loop wheel machine, which includes:The arm support root being connected in turn, oil cylinder support portion, in the middle part of arm support and arm support head, arm support root includes two arm support root legs, one end of two arm support root legs is fixed together and is connected with oil cylinder support portion, the other end arranged for interval of two arm support root legs, one end of the sectional area of two arm support root legs from arm support root leg is gradually reduced to the other end, one end in the middle part of arm support is fixedly connected with oil cylinder support portion, sectional area in the middle part of arm support is gradually reduced from one end in the middle part of arm support to the other end, arm support head includes arm support principal arm and arm support auxiliary, oil cylinder support portion is internally provided with the first connecting plate and transition steel tube, the inside of two arm support root legs is equipped with the second connecting plate, first connecting plate and two the second connecting plates are fixed together with transition steel tube.The invention enables arm support entirety lightweight, load-bearing capacity, the strength and stability of arm support are improved.

Description

A kind of arm support of oil-cylinder variable amplitude loop wheel machine
Technical field
The present invention relates to handling machinery field, more particularly to a kind of arm support of oil-cylinder variable amplitude loop wheel machine.
Background technology
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 Can be divided into the forms such as oil-cylinder variable amplitude, wire rope pulley group luffing and crank and rod luffing, 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.Arm support is the main of oil-cylinder variable amplitude loop wheel machine Component directly affects ship as characteristics such as the main bearing member of loop wheel machine peculiar to vessel, itself structure type, bearing capacitys With the performance and lifting performance of loop wheel machine.
At present, there are two types of the arm supports that loop wheel machine peculiar to vessel uses, and type is respectively:Truss-type cantilever crane and box type arm support, due to truss Formula arm support integral strength and rigidity are weaker, therefore are not suitable for oil-cylinder variable amplitude loop wheel machine, the generally use case on oil-cylinder variable amplitude loop wheel machine Arm frame.
In the implementation of the present invention, inventor has found that the prior art has at least the following problems:
According to the force analysis of box type arm support, stress intensity of the existing box type arm support at oil cylinder supporting surface is most Greatly, its stress intensity more remote 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 arm support form design is very unreasonable, not only increases the unnecessary load-bearing of arm support itself, and limits Arm support maximum capacity amount has been made, has been unfavorable for the lightweight of arm support and entire loop wheel machine peculiar to vessel, oil-cylinder variable amplitude loop wheel machine can not be given full play to Transport capacity.
The content of the invention
In order to solve the problems, such as that existing oil-cylinder variable amplitude arm support load-bearing capacity is smaller and design is unreasonable, the embodiment of the present invention carries A kind of arm support of oil-cylinder variable amplitude loop wheel machine is supplied.The technical solution is as follows:
An embodiment of the present invention provides a kind of arm support of oil-cylinder variable amplitude loop wheel machine, the arm support includes:It is connected in turn Arm support root, oil cylinder support portion, in the middle part of arm support and arm support head, the arm support root includes two arm support root legs, two institutes The one end for stating arm support root leg is fixed together and is connected with the oil cylinder support portion, two arm support root legs it is another Arranged for interval is held, one end of sectional area from the arm support root leg of two arm support root legs is gradually reduced to the other end, described One end in the middle part of arm support is fixedly connected with the oil cylinder support portion, and the sectional area in the middle part of the arm support is by one in the middle part of the arm support It holds to the other end and is gradually reduced, the arm support head includes arm support principal arm and arm support auxiliary, one end of the arm support principal arm and institute The other end in the middle part of arm support to be stated to be fixedly connected, the other end of the arm support principal arm is fixedly connected with one end of the arm support auxiliary, The sectional area of the arm support auxiliary is gradually reduced from described arm support 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 arm support root legs is equipped with the second connecting plate, first connecting plate It is fixed together with two second connecting plates with the transition steel tube.
In a kind of realization method of the embodiment of the present invention, internal vertical in the middle part of the arm support root leg and the arm support in The oil-cylinder variable amplitude loop wheel machine arm support length direction is equipped with multiple diaphragm plates.
In another realization method of the embodiment of the present invention, inner surface is along institute in the middle part of the arm support root leg and the arm support Oil-cylinder variable amplitude loop wheel machine arm support length direction is stated equipped with angle steel.
In another realization method of the embodiment of the present invention, the oil cylinder support portion is equipped with ears structure, the ears Structure is arranged on described two side outer walls of oil cylinder support portion.
In another realization method of the embodiment of the present invention, the oil cylinder support portion is along the oil-cylinder variable amplitude loop wheel machine arm support Length direction is equipped with three layers of connecting plate.
In another realization method of the embodiment of the present invention, the master that the arm support principal arm is equipped with to install pulley rises Otic placode is risen, the main raising otic placode is arranged on the symmetry axis in the arm support head length direction, and the arm support auxiliary, which is equipped with, to be used In the secondary raising otic placode of installation pulley, the pair raising otic placode, which is arranged on the arm support head, deviates the arm support length direction pair Claim the one side of axis.
In another realization method of the embodiment of the present invention, the arm support principal arm is equipped with otic placode slot, the otic placode slot It is arranged on the symmetry axis of the arm support principal arm length direction, the main raising otic placode is mounted in the otic placode slot.
In another realization method of the embodiment of the present invention, the main raising otic placode includes:First otic placode and the second ear It is used to install the mounting hole of pulley on plate, first otic placode and second otic placode there are two setting.
In another realization method 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 realization method of the embodiment of the present invention, the arm support auxiliary one end connects with the arm support principal arm It connects, the arm support auxiliary is equipped with pulley base with the arm support principal arm link position, and described arm support auxiliary the other end is equipped with described Secondary raising otic placode.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is:
The embodiment of the present invention meets the whole of arm support by the structure type for being set to gradually taper up by the cross section in the middle part of arm support Body stress distribution situation enhances the range of stress that arm support can be born so that the whole more lightweight of arm support improves holding for arm support Beijing South Maxpower Technology Co. Ltd's power, strength and stability ensure that the safety of cargo, meanwhile, arm support root is fixedly connected for two arm support root leg one end, Stable three-legged structure can be formed during 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 arm support, in addition, arm support root and the connection of oil cylinder support portion pass through transition steel tube transition, two arm support 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 arm support 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 arm support root.
Description of the drawings
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, the accompanying drawings in the following description is only some embodiments of the present invention, for For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings Attached drawing.
Fig. 1 is a kind of schematic diagram of the arm support 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 arm support that Fig. 1 is provided;
Fig. 3 is the structure diagram of a kind of arm support root provided in an embodiment of the present invention and oil cylinder support portion junction;
Fig. 4 is a kind of arm support 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 arm support 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 arm support head construction schematic diagram provided in an embodiment of the present invention;
Fig. 8 is a kind of structure 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 arm support head top view that Fig. 7 is provided;
Each symbolic indication meaning is as follows in figure:
1- arm supports root, 10- arm support root legs, 11- roots wing plate, 12- roots web, the second connecting plates of 13-, in 2- arm supports Portion, 20- lightening holes, 21- middle parts wing plate, 22- central-webs, 3- arm supports head, 31- arm support principal arms, 32- arm support auxiliarys, 310- Otic placode slot, the main raising otic placodes of 311-, 321- pair raising otic placodes, 322- pulley bases, the first otic placodes of 311a-, the second otic placodes of 311b-, 311c- lifting lugs hole, 311d- protrusions, 4- oil cylinder support portions, 41- ears structures, 42- transition steel tubes, 43- support portion partition plates, 44- First connecting plate, 45- connecting plates, 5- angle steel, 6- diaphragm plates.
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.
An embodiment of the present invention provides a kind of arm support 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 arm support of oil-cylinder variable amplitude loop wheel machine, Fig. 2 is a kind of side view for oil-cylinder variable amplitude loop wheel machine arm support that Fig. 1 is provided, such as Fig. 1,2 Shown, which includes:Arm support root 1, oil cylinder support portion 4, arm support middle part 2 and the arm support head 3 being connected in turn, arm Frame root 1 includes two arm support root legs 10, and one end of two arm support root legs 10 is fixed together, two arm support root legs 10 Other end arranged for interval, one end of sectional area from the arm support root leg 10 of two arm support root legs 10 are gradually reduced to the other end, arm support The one end at middle part 2 is fixedly connected with oil cylinder support portion 4, in the middle part of arm support the one end of 2 sectional area from the middle part of arm support 2 to the other end by Decrescence small, arm support head 3 includes arm support principal arm 31 and arm support auxiliary 32, and one end of arm support principal arm 31 is another with arm support middle part 2 End is fixedly connected, and the other end of arm support principal arm 31 is fixedly connected with one end of arm support auxiliary 32, the sectional area of arm support auxiliary 32 by 32 one end of arm support auxiliary is gradually reduced to the other end, and oil cylinder support portion 4 is internally provided with the first connecting plate 44 and transition steel tube 42 (referring to Fig. 3), the inside of two arm support 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 plate 43 of 10 one end of arm support root leg, the first connecting plate 44 is welded in transition steel tube 42, two Second connecting plate 13 is extended to by two opposite root webs 12 on arm support root leg 10 and from 10 internal stretch of arm support 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 arm support by the way that in the middle part of arm support 2 cross section is set to the structure type gradually tapered up Integrated stress distribution situation enhances the range of stress that arm support can be born so that the whole more lightweight of arm support improves arm support Load-bearing capacity, strength and stability ensure that the safety of cargo, meanwhile, arm support root 1 is fixed for two 10 one end of arm support root leg 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 arm support, in addition, the connection of arm support 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 set in a arm support 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 arm support 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 arm support root 1.
Specifically, two arm support root legs 10 of arm support 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 two root wing plates 11 and the narrow end of 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 arm support, and two central-webs 22 include wide end and narrow End, the wide end of width from the central-web 22 of two central-webs 22 are gradually reduced to narrow end, and two middle part wing plates 21 wrap Wide end and narrow end are included, the wide end of width from the middle part wing plate 21 of two middle part wing plates 21 is gradually reduced 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.Arm support head 3 includes arm support principal arm 31 With arm support auxiliary 32, wherein 31 sectional area of arm support principal arm is constant, and the both sides of two blocks of webs of arm support auxiliary 32 are gradually reduced, arm support The one side of two blocks of wing plates of auxiliary 32 is gradually reduced, the web and wing plate of arm support auxiliary 32 form one section of sectional area to the other end by Decrescence small box-structure.
Preferably, arm support middle part 2 is additionally provided with lightening hole 20, lowers the weight of arm support entirety and makes arm support lightweight.
Specifically, the internal vertical at arm support root leg 10 and arm support middle part 2 is equipped in oil-cylinder variable amplitude loop wheel machine arm support length direction Multiple diaphragm plates 6.The 2 interior setting diaphragm plate 6 in the middle part of arm support root 1 and arm support adds the bending resistance and arm support of arm support Whole and lateral stability.
Fig. 4 is a kind of arm support 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 Schematic cross-section in the middle part of a kind of arm support, as shown in Figure 4,5,2 inner surfaces are along oil-cylinder variable amplitude loop wheel machine in the middle part of arm support root leg 10 and arm support Arm support length direction is equipped with angle steel 5.Set angle steel 5 that can enhance the bending resistance of arm support and the stabilization that arm support 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 arranged on described 43 two side outer walls of oil cylinder support portion.Ears structure 41 is set For being connected with cylinder piston rod, convenient for the ponderomotive force that rises on oil cylinder is transferred on arm support, it ensure that arm support 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 arm support length direction.This Invention sets three layers of connecting plate 45 through in the middle part of entire arm support 2 along arm support direction in oil cylinder support portion 4, and with arm support root The angle steel 5 in portion aligns, and ensures that arm support bearing capacity can be reached swimmingly from arm support head 3 at oil cylinder loop wheel machine, enhances as stability.
Fig. 7 is a kind of arm support head construction schematic diagram provided in an embodiment of the present invention, as shown in fig. 7, on arm support principal arm 31 Equipped with for installing the main raising otic placode 311 of pulley, main raising otic placode 311 is arranged on the symmetry axis of 3 length direction of arm support head, Arm support auxiliary 32 is equipped with to install the secondary raising otic placode 321 of pulley, and secondary raising otic placode 321, which is arranged on arm support head 3, to be deviateed The one side of arm support length direction symmetry axis.By setting main raising otic placode 311 and secondary raising otic placode 321, and use different ears Plate lifts by crane different tonnage cargos, has avoided one from rising otic placode continuous work and damage, has improved arm support service life, meanwhile, it will Main raising otic placode 311 is arranged on the symmetrical shaft position on arm support head 3, and secondary raising otic placode 321 is positioned away from 3 symmetry axis of arm support head One side, avoid the situation that the steel wire rope 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, arm support 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 arm support 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 structures.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 arm support principal arm 31, and led Rise 311 one end of otic placode equipped with protrusion 311d be welded on 31 otic placode slot of arm support principal arm, 310 external position can prevent main raising otic placode 311 because It is subject to gravity or other downward tractive force and falls, 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 arm support principal arm, main raising otic placode 311 is prevented to be subject to upward tractive force and is loosened Situation improves the stability of arm support.
As shown in figure 9, main raising otic placode 311 includes:First otic placode 311a and the second otic placode 311b, the first otic placode 311a and It is used to install the mounting hole of pulley on second otic placode 311b there are two setting.Main 311 both ends of raising otic placode are equipped with the peace of installation pulley It is set at dress hole there are two wire rope pulley, the circular process of steel wire rope is:Proximal arm is leaned on 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 arm support principal arm Steel wire rope, which changes, takes turns and 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 set and is made of two otic placodes, between wire rope pulley is mounted on two otic placodes, facilitates steel wire The installation and fixation of rope pulley, prevent wire rope pulley from loosening, and improve the stability of arm support.
Figure 10 is a kind of top view on arm support head that Fig. 7 is provided, as shown in Figure 10,32 one end of arm support auxiliary and arm support Principal arm 31 connects, and arm support auxiliary 32 is equipped with pulley base 322 with 31 link position of arm support principal arm, and 32 the other end of arm support auxiliary is equipped with Secondary raising otic placode 321.Pulley base 322 is set, for installing wire rope pulley, to complete the peace of raising hook with secondary raising otic placode 321 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 modifications, equivalent replacements and improvements are made should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of arm support of oil-cylinder variable amplitude loop wheel machine, which is characterized in that the arm support includes:The arm support root being connected in turn Portion, oil cylinder support portion, arm support middle part and arm support head, the arm support root include two arm support root legs, two arm support roots One end of leg is fixed together and is connected with the oil cylinder support portion, the other end interval cloth of two arm support root legs It puts, one end of sectional area from the arm support root leg of two arm support root legs is gradually reduced to the other end, in the middle part of the arm support One end be fixedly connected with the oil cylinder support portion, the sectional area in the middle part of the arm support is from one end in the middle part of the arm support to another End is gradually reduced, and the arm support head includes arm support principal arm and arm support auxiliary, one end of the arm support principal arm in the arm support The other end in portion is fixedly connected, and the other end of the arm support principal arm is fixedly connected with one end of the arm support auxiliary, the arm support The sectional area of auxiliary is gradually reduced from described arm support auxiliary one end to the other end, and the oil cylinder support portion is internally provided with the first company Fishplate bar and transition steel tube, the inside of two arm support 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.
2. the arm support of oil-cylinder variable amplitude loop wheel machine according to claim 1, which is characterized in that the arm support root leg and the arm support The internal vertical at middle part is equipped with multiple diaphragm plates in the oil-cylinder variable amplitude loop wheel machine arm support length direction.
3. the arm support of oil-cylinder variable amplitude loop wheel machine according to claim 1, which is characterized in that the arm support root leg and the arm support Middle part inner surface is equipped with angle steel along the oil-cylinder variable amplitude loop wheel machine arm support length direction.
4. the arm support 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 arranged on described two side outer walls of oil cylinder support portion.
5. the arm support 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 arm support length direction is equipped with three layers of connecting plate.
6. the arm support of oil-cylinder variable amplitude loop wheel machine according to claim 1, which is characterized in that the arm support principal arm is equipped with and is used for The main raising otic placode of pulley is installed, the main raising otic placode is arranged on the symmetry axis in the arm support head length direction, the arm Frame auxiliary is equipped with to install the secondary raising otic placode of pulley, and the pair raising otic placode is arranged on the arm support head described in deviation The one side of arm support length direction symmetry axis.
7. the arm support of oil-cylinder variable amplitude loop wheel machine according to claim 6, which is characterized in that the arm support principal arm is equipped with otic placode Slot, the otic placode slot are arranged on the symmetry axis of the arm support principal arm length direction, and the main raising otic placode is mounted on the ear In board slot.
8. the arm support of oil-cylinder variable amplitude loop wheel machine according to claim 7, which is characterized in that the main raising otic placode includes:The It is used to install the mounting hole of pulley on one otic placode and the second otic placode, first otic placode and second otic placode there are two setting.
9. the arm support 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 arm support of oil-cylinder variable amplitude loop wheel machine according to claim 9, which is characterized in that the arm support auxiliary one end with The arm support principal arm connection, the arm support auxiliary are equipped with pulley base with the arm support principal arm link position, and the arm support auxiliary is another One end is equipped with the secondary raising otic placode.
CN201711043529.1A 2017-10-31 2017-10-31 A kind of cantilever crane of oil-cylinder variable amplitude loop wheel machine Active CN108083142B (en)

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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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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
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