CN206266133U - Setting-up arm assembly, super lifting device and crane - Google Patents
Setting-up arm assembly, super lifting device and crane Download PDFInfo
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- CN206266133U CN206266133U CN201621245458.4U CN201621245458U CN206266133U CN 206266133 U CN206266133 U CN 206266133U CN 201621245458 U CN201621245458 U CN 201621245458U CN 206266133 U CN206266133 U CN 206266133U
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- arm assembly
- arm joint
- hoisting mechanism
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Abstract
The utility model is related to a kind of setting-up arm assembly, super lifting device and crane, setting-up arm assembly includes setting-up arm joint (51), setting-up hoisting mechanism (52) and the pulley mechanism (53) of truss form, the pulley mechanism (53) is arranged on the tail end (51B) of the setting-up arm joint (51), the setting-up hoisting mechanism (52) is arranged on the position away from the pulley mechanism (53) on the setting-up arm joint (51), and draws after setting-up drawstring (3) bypasses the pulley mechanism (53) and used as setting-up fore stay.The utility model can improve setting-up arm force-bearing situation, reduce to amplitude oil cylinder and launch the requirement of oil cylinder ability.
Description
Technical field
The utility model is related to engineering machinery field, more particularly to a kind of setting-up arm assembly, super lifting device and crane.
Background technology
With developing rapidly for World Economics, it is widely used as the crane of Grand Equipments class, from domestic city
From the point of view of, Wind Power Project, Large Scale Petrochemical Plants increasingly increase, and market increases the demand of hoister in large tonnage year by year, surpass
Large-tonnage telescopic boom wheeled crane moves flexible, transition rapidly with it, operation can be quickly put into, by the green grass or young crops in market
Look at.
Under above-mentioned background, world-famous crane manufacturer looks for another way one after another, one kind is increased on crane arm and is changed
Kind crane arm force-bearing situation, device --- the super lifting device for reducing crane arm deformation, improving its lifting performance.Wheeled crane is used
Super lifting device deadweight reaches the 10% of main screw lift, and when road travels on crane, the super lifting device that need to dismantle individually is transported to meet
National related limitation is required.
In existing super lifting device, setting-up hoisting mechanism is arranged in the tail end of setting-up arm.As shown in figure 1, being existing
A kind of super lifting device structural representation.The super lifting device includes two setting-up arm a2 being arranged on flexible principal arm a1,
The tail end of setting-up arm a2 is provided with setting-up hoisting mechanism a3, the setting-up fore stay a4 and flexible principal arm drawn in setting-up hoisting mechanism a3
The arm head connection of a1.There are following two shortcomings in the position of the setting-up hoisting mechanism：
1st, because the weight of setting-up hoisting mechanism accounts for more than half of whole super lifting device, therefore setting-up hoisting mechanism is set
The center of gravity that whole setting-up arm can be caused in setting-up arm afterbody rearward, i.e., from setting-up arm luffing hinge farther out, this causes setting-up arm
Larger cylinder thrust, and then the bigger heavier amplitude oil cylinder of demand and expansion oil are needed in upward luffing and during launching
Cylinder.
2nd, the moment of flexure that the setting-up hoisting mechanism deadweight of setting-up arm afterbody produces is arranged in be applied in the arm cylinder of setting-up arm and lead
Cause the deformation of arm cylinder larger.Meanwhile, during crane job, the force-bearing situation of the arm cylinder of setting-up arm is more complicated, is unfavorable for that setting-up is filled
The trouble free service put.
In addition, existing super lifting device also has the following disadvantages：Arm cylinder is generally welded by steel plate bending and formed, weight
Lay particular stress on, take up room larger；Arm cylinder is designed and actual mechanics situation Incomplete matching；Setting-up hoisting mechanism is welded as one with arm cylinder
Body, length is long, and welding deformation is big, causes packing transhipment, assembling difficulty and maintenance cost is high.
Utility model content
The purpose of this utility model is to propose a kind of setting-up arm assembly, super lifting device and crane, can improve setting-up arm
Force-bearing situation, reduces to amplitude oil cylinder and launches the requirement of oil cylinder ability.
To achieve the above object, the utility model provide a kind of setting-up arm assembly, including truss form setting-up arm joint,
Setting-up hoisting mechanism and pulley mechanism, the pulley mechanism are arranged on the tail end of the setting-up arm joint, the setting-up hoisting mechanism
The position away from the pulley mechanism in the setting-up arm joint is arranged on, and draws setting-up drawstring and bypass work after the pulley mechanism
For setting-up fore stay is used.
Further, the setting-up hoisting mechanism be located at the setting-up arm joint root, and with the root of the setting-up arm joint
Portion is connected by bearing pin.
Further, the setting-up hoisting mechanism is arranged on the inside of the setting-up arm joint of integral form, or installs
Between the two neighboring described setting-up arm joint of segmented version.
Further, the setting-up hoisting mechanism is arranged on the lateral surface of the setting-up arm joint.
Further, the setting-up hoisting mechanism is arranged on the downside of the setting-up arm joint.
Further, also including jib lubbing mechanism, the setting-up hoisting mechanism is located at the jib lubbing mechanism and the setting-up arm
The articulated position of section, so that the force direction of the jib lubbing mechanism points to the setting-up hoisting mechanism.
Further, the sectional dimension near tail end in the setting-up arm joint is less than the sectional dimension near root.
Further, the tail end from the setting-up arm joint gradually increases to the sectional dimension of root.
Further, it is attached by assembling mode between the setting-up hoisting mechanism and the setting-up arm joint.
To achieve the above object, the utility model provides a kind of super lifting device, including foregoing setting-up arm assembly, described
Setting-up arm assembly is located at the left setting-up arm assembly and the right setting-up arm assembly positioned at right side in left side after including installing, in the setting-up
Device is assembled in the state of crane, the left setting-up arm assembly and the right setting-up arm assembly respectively with the crane
Lifting principal arm is connected.
Further, the multiplying power of the setting-up drawstring that the setting-up hoisting mechanism is drawn is the integer more than or equal to 3.
To achieve the above object, the utility model provides a kind of crane, including foregoing setting-up arm assembly or foregoing
Super lifting device.
Based on above-mentioned technical proposal, pulley mechanism is arranged on the utility model the tail end of setting-up arm joint, and setting-up is rolled up
Raise mechanism and be arranged on position in setting-up arm joint away from pulley mechanism, setting-up hoisting mechanism is set compared to existing super lifting device
In the tail end of setting-up arm joint, the utility model can significantly reduce the distance between setting-up hoisting mechanism and setting-up luffing hinge,
The moment of flexure for producing the deadweight of setting-up hoisting mechanism significantly reduces, and then reduces the load requirement to jib lubbing mechanism and development mechanism,
So that jib lubbing mechanism and development mechanism can design smaller, lighter, and the use costs such as fuel consumption are reduced simultaneously；It is another
Aspect, setting-up hoisting mechanism is disposed distally to the position of the tail end of setting-up arm joint, can effectively simplify and improve setting-up arm joint
Stress, make the design of setting-up arm joint more accurate, gentlier.In a word, it is arranged on setting-up arm joint by by setting-up hoisting mechanism
On the weight and cost of transportation of jib lubbing mechanism, development mechanism and setting-up arm joint can be greatly reduced away from the position of tail end, and
Setting-up luffing, the fuel consumption launched.
Brief description of the drawings
Accompanying drawing described herein is used for providing being further understood to of the present utility model, constitutes the part of the application,
Schematic description and description of the present utility model is used to explain the utility model, does not constitute to of the present utility model improper
Limit.In the accompanying drawings：
Fig. 1 is a kind of structural representation of existing super lifting device.
Fig. 2 is the structural representation of an embodiment of the utility model super lifting device.
Fig. 3 is the structural representation of an embodiment of the utility model setting-up arm assembly.
Fig. 4 is the travel position schematic diagram of the utility model setting-up arm assembly embodiment.
Specific embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
In super lifting device, setting-up hoisting mechanism generally includes winding support, reductor, reel, setting-up drawstring and (for example surpasses
Play steel wire rope), motor etc., its weight generally takes up more than half of the gross weight of whole super lifting device, such as 65% or so.Through
The analysis and research of inventor, deriving the set location of setting-up hoisting mechanism can interfere significantly on setting-up arm joint, jib lubbing mechanism
With the stressed effect of development mechanism, the tail end that setting-up hoisting mechanism is arranged on setting-up arm joint be result in into setting-up arm in the prior art
Section stress is not good, and improves the force capabilities requirement to jib lubbing mechanism and development mechanism, therefore the utility model is first from changing
Become position of the setting-up hoisting mechanism on setting-up arm assembly to try hard to improve setting-up arm force-bearing situation, reduce to amplitude oil cylinder and exhibition
Open the requirement of oil cylinder ability.
As shown in Fig. 2 the structural representation of the embodiment for the utility model super lifting device.In the present embodiment, surpass
Lifting device includes being located at after lifting principal arm 1 the left setting-up arm assembly 5L and the right setting-up arm assembly positioned at right side in left side
5R, in the state of the super lifting device is assembled to crane, the left setting-up arm assembly 5L and right setting-up arm assembly 5R
It is connected with the lifting principal arm 1 of the crane respectively.Wherein, left setting-up arm assembly 5L and right setting-up arm assembly 5R can be used and is divided
Body formula structure, i.e., left setting-up arm assembly 5L and right setting-up arm assembly 5R are separate, and weight is relatively light, can when being dismounted
Independently carried out with by the auxiliary hoist of smaller tonnage, therefore convenient disassembly, and it is more quick and reduce use cost.
In another embodiment, left setting-up arm assembly 5L and right setting-up arm assembly 5R also can by setting-up variable amplitude support connect into one it is whole
Body, and carry out overall dismounting.
In super lifting device, also wrapped near the root of lifting principal arm 1 in left setting-up arm assembly 5L and right setting-up arm assembly 5R
Setting-up backstay 2 is included, the setting-up backstay 2 connects the tail end of setting-up arm assembly and the root of lifting principal arm 1.Left setting-up arm is total
Setting-up drawstring 3 into the setting-up hoisting mechanism extraction on 5L and right setting-up arm assembly 5R is used as setting-up fore stay and lifting principal arm 1
Arm head or arm body connected by assembly pulley 4.
Setting-up drawstring 3 can be single multiplying power or dual-magnification technique, the preferably greater than integer equal to 3.For 3 multiplying powers and the above times
For the setting-up drawstring 3 of rate, relatively thinner drawstring can be used, therefore be easier to be wound on the reel of setting-up elevator, arranged
Rope is better, meanwhile, can also reduce the weight and cost of setting-up drawstring.
In the above-described embodiments, the concrete structure embodiment of left setting-up arm assembly 5L and right setting-up arm assembly 5R referring to Fig. 3,
Shown in Fig. 4.In figure 3, setting-up arm assembly includes setting-up arm joint 51, setting-up hoisting mechanism 52 and the pulley mechanism of truss form
53, the pulley mechanism 53 is arranged on the tail end 51B of the setting-up arm joint 51, and the setting-up hoisting mechanism 52 is arranged on described super
The position away from the pulley mechanism 53 in arm joint 51 is played, and it is super to draw conduct after setting-up drawstring 3 bypasses the pulley mechanism 53
Fore stay is played to use.Setting-up arm joint 51 uses truss structure to mitigate the weight of setting-up arm assembly.
Can be connect by bearing pin between setting-up arm joint 51 and pulley mechanism 53, fixed pulley is installed in pulley mechanism 53, surpassed
Rise drawstring 3 from setting-up hoisting mechanism 52 out after, can pass through from the outside of setting-up arm joint 51 or inside, bypassing fixed pulley
The assembly pulley 4 with the end of lifting principal arm 1 is attached afterwards.Can also include for driving setting-up arm luffing in setting-up arm assembly
Jib lubbing mechanism and for drive setting-up arm launch development mechanism.
Pulley mechanism is arranged on the present embodiment the tail end of setting-up arm joint, and setting-up hoisting mechanism is arranged on into setting-up arm joint
On away from pulley mechanism position, compared to the tail end that setting-up hoisting mechanism is arranged on existing super lifting device setting-up arm joint, this
Embodiment can significantly reduce the distance between setting-up hoisting mechanism and setting-up luffing hinge, setting-up hoisting mechanism is conducted oneself with dignity and produce
Moment of flexure significantly reduce, and then reduce to the requirement of the force of jib lubbing mechanism and development mechanism, so that jib lubbing mechanism and unwinder
Structure can design smaller, lighter, and reduce the use costs such as fuel consumption simultaneously；On the other hand, by setting-up hoisting mechanism cloth
The position of the tail end away from setting-up arm joint is put, can effectively simplify and improve the stress of setting-up arm joint, make setting-up arm joint
Design it is more accurate, gentlier.In a word, the position by setting-up hoisting mechanism being arranged in setting-up arm joint away from tail end can be big
The weight and cost of transportation of width reduction jib lubbing mechanism, development mechanism and setting-up arm joint, and setting-up luffing, the fuel oil of expansion disappear
Consumption.
Setting-up hoisting mechanism 52 can select multiple feasible set locations relative to setting-up arm joint 51, such as shown in Fig. 3
Setting-up hoisting mechanism 52 be located at the root 51A of the setting-up arm joint 51, and pass through pin with the root 51A of the setting-up arm joint 51
Axle is connected.In another embodiment, setting-up hoisting mechanism 52 can also be arranged on the setting-up arm joint 51 of integral form
Inside, or between the two neighboring described setting-up arm joint 51 of segmented version.In yet another embodiment, setting-up elevator
Mechanism 52 can then be arranged on the lateral surface of the setting-up arm joint 51, and lateral surface here includes upper and lower side, also including left and right
Side, setting-up hoisting mechanism 52 is preferably arranged on the downside of setting-up arm joint 51.For example, setting-up hoisting mechanism 52 passes through bolt
Or the installed part such as bearing pin is fixed on the lower side external surface of setting-up arm joint 51.
For from setting-up arm assembly, as long as setting-up hoisting mechanism 52 is not arranged in the tail end 51B of setting-up arm joint 51, i.e.,
Tail end 51B is arranged on than setting-up hoisting mechanism 52 be obtained in that more preferable force-bearing situation, but in order to obtain preferably effect, it is excellent
Setting-up hoisting mechanism 52 is arranged on the midpoint to the position of root 51A of the entirety of setting-up arm joint 51 for choosing, so that setting-up hoist engine
Structure 52 improves what setting-up arm assembly was brought by the own wt of setting-up hoisting mechanism 52 closer to the luffing hinge of setting-up arm assembly
The adverse effect of moment of flexure.
The jib lubbing mechanism shown in Fig. 3 includes luffing bearing and amplitude oil cylinder 54, and development mechanism includes launching bearing and exhibition
Open oil cylinder 55.Luffing bearing is connected with bearing is launched by bearing pin (perpendicular to the direction of paper).When setting-up luffing, luffing oil
The jack-up of setting-up arm joint 51 is launched bearing, setting-up hoisting mechanism 52, setting-up arm joint 51, pulley mechanism 53 etc. as one by cylinder 54
Rotated entirely around the bearing pin (i.e. luffing hinge).Launch to connect also by bearing pin between bearing and setting-up hoisting mechanism 52
Connect, the bearing pin is parallel to paper.Setting-up hoisting mechanism 52, setting-up arm joint 51, pulley mechanism 53 etc. are as one entirely around this
Bearing pin (launching hinge) is rotated.In another embodiment, setting-up hoisting mechanism 52 is preferably made to be located at the luffing machine
The articulated position of structure and the setting-up arm joint 51, so that the force direction of the jib lubbing mechanism points to the setting-up hoisting mechanism
52.So can greatly reduce the requirement of the force capabilities to jib lubbing mechanism and development mechanism.
With reference to embodiment illustrated in fig. 3, can be connected by 4 bearing pins between setting-up hoisting mechanism 52 and setting-up arm joint 51, torn open
Dress is convenient.Setting-up arm joint 51 can use truss-like or box formula, it is preferred to use truss structure.When crane works, setting-up dress
Impact direction is put as shown in power F in Fig. 3, i.e., by the pressure of the length direction along setting-up arm joint 51.According to mechanics principle, setting-up
The stress form of device belongs to rod member compression, from from the aspect of stability, preferably makes in Fig. 3 in setting-up arm joint 51 near tail end
The sectional dimension (corresponding to section B) of 51B can further make to surpass less than the sectional dimension (corresponding to section A) near root 51A
The tail end 51B for playing arm joint 51 gradually increases to the sectional dimension of root 51A.The structure of this variable cross-section setting-up arm joint 51 is meeting
On the premise of stress, stability is higher, and stress is more reasonable, and weight is lighter, and arm cylinder appearance and size is more compact, takes up room smaller.
For setting-up hoisting mechanism, it can be attached with setting-up arm joint 51 by welding manner.In this implementation
In example, preferably it is attached by assembling mode.Assembling mode can effectively reduce the length of each detachable part of setting-up,
Reduce the length dimension of single structure part；Enable that the processing of each part is realized using less lathe first, reduce
Processing cost；Secondly compared to welding manner, assembling mode can effectively control deformation, lift dimensional accuracy；Each is torn open again
The part divided is easy to transport, is assembled, and is also easier to realize modularization, can be convenient for changing when a failure occurs and be repaired, and is reduced
Maintenance cost.
Fig. 4 shows the travel position schematic diagram of the utility model setting-up arm assembly embodiment.In fig. 4, left setting-up arm
Assembly 5L and the right setting-up arm assembly 5R can be transported side by side, also can independently be transported, and assembly pulley 4 can be in transport
It is connected to the root of super lifting device.
Above the multiple embodiments to setting-up arm assembly of the present utility model and super lifting device are illustrated, above-mentioned setting-up
The embodiment of arm assembly and super lifting device goes in all kinds of implements for needing to use super lifting device, is particularly suited for
Large-scale crane gear.Therefore the utility model additionally provides a kind of crane, can include that foregoing setting-up arm assembly is implemented
Example, or this include foregoing super lifting device embodiment.
Finally it should be noted that:Above example is only used to illustrate the technical solution of the utility model rather than it is limited
System；Although being described in detail to the utility model with reference to preferred embodiment, those of ordinary skill in the art should
Understand：Specific embodiment of the present utility model can still be modified or some technical characteristics are equally replaced
Change；Without deviating from the spirit of technical solutions of the utility model, it all should cover in the claimed technical scheme of the utility model
In the middle of scope.
Claims (12)
1. a kind of setting-up arm assembly, it is characterised in that setting-up arm joint (51), setting-up hoisting mechanism (52) including truss form and
Pulley mechanism (53), the pulley mechanism (53) is arranged on the tail end (51B) of the setting-up arm joint (51), the setting-up hoist engine
Structure (52) is arranged on the position away from the pulley mechanism (53) on the setting-up arm joint (51), and draw setting-up drawstring (3) around
Used as setting-up fore stay after crossing the pulley mechanism (53).
2. setting-up arm assembly according to claim 1, it is characterised in that the setting-up hoisting mechanism (52) is positioned at described super
The root (51A) of arm joint (51) is played, and is connected by bearing pin with the root (51A) of the setting-up arm joint (51).
3. setting-up arm assembly according to claim 1, it is characterised in that the setting-up hoisting mechanism (52) is arranged on entirety
The inside of the setting-up arm joint (51) of form, or installed in segmented version two neighboring described setting-up arm joint (51) it
Between.
4. setting-up arm assembly according to claim 1, it is characterised in that the setting-up hoisting mechanism (52) is arranged on described
The lateral surface of setting-up arm joint (51).
5. setting-up arm assembly according to claim 4, it is characterised in that the setting-up hoisting mechanism (52) is installed in described
The downside of setting-up arm joint (51).
6. setting-up arm assembly according to claim 1, it is characterised in that also including jib lubbing mechanism, the setting-up hoist engine
Structure (52) positioned at the jib lubbing mechanism and the setting-up arm joint (51) articulated position so that the force direction of the jib lubbing mechanism
Point to the setting-up hoisting mechanism (52).
7. according to any described setting-up arm assembly of claim 1~6, it is characterised in that leaning on the setting-up arm joint (51)
The sectional dimension of caudal part (51B) is less than the sectional dimension near root (51A).
8. setting-up arm assembly according to claim 7, it is characterised in that from the tail end (51B) of the setting-up arm joint (51)
Sectional dimension to root (51A) gradually increases.
9. the setting-up arm assembly according to claim 3 or 4, it is characterised in that the setting-up hoisting mechanism (52) with it is described
Setting-up arm joint is attached between (51) by assembling mode.
10. a kind of super lifting device, it is characterised in that including any described setting-up arm assembly of claim 1~9, the setting-up
Arm assembly is located at the left setting-up arm assembly (5L) and the right setting-up arm assembly (5R) positioned at right side in left side after including installing, described
Super lifting device is assembled in the state of crane, the left setting-up arm assembly (5L) and the right setting-up arm assembly (5R) respectively with
Lifting principal arm (1) connection of the crane.
11. super lifting devices according to claim 10, it is characterised in that the setting-up that the setting-up hoisting mechanism (52) is drawn
The multiplying power of drawstring (3) is the integer more than or equal to 3.
12. a kind of cranes, it is characterised in that including any described setting-up arm assembly of claim 1~9 or claim 10
~11 any described super lifting devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621245458.4U CN206266133U (en) | 2016-11-18 | 2016-11-18 | Setting-up arm assembly, super lifting device and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621245458.4U CN206266133U (en) | 2016-11-18 | 2016-11-18 | Setting-up arm assembly, super lifting device and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206266133U true CN206266133U (en) | 2017-06-20 |
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ID=59041080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621245458.4U Active CN206266133U (en) | 2016-11-18 | 2016-11-18 | Setting-up arm assembly, super lifting device and crane |
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| Country | Link |
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| CN (1) | CN206266133U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083142A (en) * | 2017-10-31 | 2018-05-29 | 武汉船用机械有限责任公司 | A kind of arm support of oil-cylinder variable amplitude loop wheel machine |
-
2016
- 2016-11-18 CN CN201621245458.4U patent/CN206266133U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083142A (en) * | 2017-10-31 | 2018-05-29 | 武汉船用机械有限责任公司 | A kind of arm support of oil-cylinder variable amplitude loop wheel machine |
| CN108083142B (en) * | 2017-10-31 | 2019-11-15 | 武汉船用机械有限责任公司 | A kind of cantilever crane of oil-cylinder variable amplitude loop wheel machine |
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