CN206615940U - A kind of swing arm tower crane with integral type arm - Google Patents
A kind of swing arm tower crane with integral type arm Download PDFInfo
- Publication number
- CN206615940U CN206615940U CN201621395248.3U CN201621395248U CN206615940U CN 206615940 U CN206615940 U CN 206615940U CN 201621395248 U CN201621395248 U CN 201621395248U CN 206615940 U CN206615940 U CN 206615940U
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- Prior art keywords
- arm
- segment
- transition segment
- tower body
- balancing
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- 230000007704 transition Effects 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005284 basis set Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model discloses a kind of swing arm tower crane with integral type arm, including tower body and arm, the tower body includes the transition segment positioned at its top, the arm is integral type structure and is hinged with the transition segment, arm is divided into lifting section and balancing segment by boundary of the hinged support between the arm and transition segment, lift heavy dolly is slidably connected in wherein described lifting section, the balancing segment is provided with balancing weight；The luffing unit for adjusting tower body and arm angle is also associated between the transition segment and arm.
Description
Technical field
The utility model is related to tower crane technical field, more particularly to a kind of swing arm tower crane with integral type arm.
Background technology
The structural representation of existing tower crane arm is shown referring to Fig. 1 and Fig. 2, by counter-jib and movable crane arm structure
Into being connected, and be provided with counter-jib by A framves assembly wherein between counter-jib and wire rope pulley group and crane arm luffing
Hoist engine for winding steel wire rope, changes angle between crane arm and tower body, so as to change crane arm by winding steel wire rope
On lift heavy suspension hook mobile range in the horizontal direction, the process is the amplitude changing process of tower crane.And right existing arm knot
Structure has the following disadvantages：First, in tower crane amplitude changing process, the arm of force of crane arm can be with angle change between crane arm and tower body
Change and change, and the arm of force of counter-jib then can be constant all the time, this will easily cause the force unbalance of crane arm and counter-jib,
So as to the potential safety hazard that crane arm is fractureed or tower crane is toppled over occur；Second, and because counter-jib and crane arm are in amplitude changing process
Middle arm of force change is asynchronous, therefore its safe luffing scope is smaller, is that operation is made troubles；3rd, crane arm and counter-jib
Between mainly by steel wire rope connect, and in amplitude changing process wind steel wire rope when can increase steel rope abrasion, it is therefore desirable to calmly
Phase checks more change steel rope, and maintenance cost is high；4th, and due to being connected between crane arm and counter-jib mainly by steel wire rope, when
When crane arm occurs bending deformation because load-carrying is excessive, wire cable rupture is easily caused, so that crane arm and counter-jib stress
Imbalance, triggers second accident.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art novel there is provided a kind of structure, safe and reliable tool
There is the swing arm tower crane of integral type arm.
In order to realize the above object the technical scheme that the utility model is used is：
A kind of swing arm tower crane with integral type arm, including tower body and arm, the tower body are included positioned at its top
Transition segment, the arm is integral type structure and is hinged with the transition segment, with the hinged support between the arm and transition segment
Arm is divided into lifting section and balancing segment to demarcate, wherein slidably connecting lift heavy dolly, the balance in lifting section
Section is provided with balancing weight；The luffing unit for adjusting tower body and arm angle is also associated between the transition segment and arm.
Further, the luffing unit is the oil cylinder that two ends are hinged with transition segment and arm respectively, wherein the luffing unit
Pin joint between arm is located at the lifting section of arm.
Further, described tower body includes transition segment, rotary support, jacking section and the basis set gradually from top to bottom
Section, in addition to change the outer sleeve frame being enclosed on base section.
Further, when the lift heavy dolly is unloaded, the balancing segment torque of the arm is more than lifting section.
The beneficial effects of the utility model are：Tack tower crane of the present utility model uses the arm of integral structure, passes through
Luffing unit changes the angle between arm and tower body to change the horizontal range between arm lifting section end and tower body（I.e.
The horizontal amplitude of arm）, compared with traditional tower crane structure, the arm stability of integral structure is higher, and is hung in regulation
During the horizontal amplitude of arm, its balancing segment and the torque arm length equal proportion of lifting section change, and are more beneficial for keeping arm stress balance,
Prevent the excessive security incident for causing arm to occur toppling over or deform of side stress.
Brief description of the drawings
Fig. 1 is the structural representation of existing tower crane arm.
Fig. 2 is structural representation of the existing tower crane arm after luffing.
Fig. 3 is structural representation of the present utility model.
Fig. 4 is structural representation of the utility model after luffing.
Wherein, 1- arms, 11- liftings section, 111- lift heavy dollies, 12- balancing segments, 121- balancing weights, 2- tower bodies, 21- mistakes
Cross section, 22- rotary supports, 23- jacking sections, 24- base sections, 25- outer sleeve frames, 3- luffing units.
Embodiment
The utility model technical scheme claimed is made further specifically in conjunction with the drawings and specific embodiments
It is bright.
Referring to shown in accompanying drawing 3 and accompanying drawing 4, the tack tower crane in the present embodiment, including tower body 2 and arm 1.Wherein tower body 2
Including the transition segment 21 set gradually from top to bottom, rotary support 22, jacking section 23 and base section 24, in addition to change and be enclosed on basis
Outer sleeve frame 25 on section 24.
Arm 1 is integral type structure and is hinged with the transition segment 21, to be hinged branch between the arm 1 and transition segment 21
Arm 1 is divided into lifting section 11 and balancing segment 12 by point for boundary, arm 1 is constituted the lever using the hinged support as fulcrum
Structure, wherein slidably connecting lift heavy dolly 111 in lifting section 11, the balancing segment 12 is provided with balancing weight 121；The mistake
Cross the luffing unit 3 being also associated between section 21 and arm 1 for adjusting tower body 2 and the angle of arm 1.In the present embodiment, become
Width unit 3 is the oil cylinder that two ends are hinged with transition segment 21 and arm 1 respectively, wherein being hinged between the luffing unit 3 and arm 1
Point makes arm 1 be swung along hinged support, so as to adjust using oil cylinder positioned at the lifting section 11 of arm 1 in 11 sides of lifting section force
The angle between arm 1 and tower body 2 is saved, luffing is finally realized.
Again referring to shown in accompanying drawing 4, in amplitude changing process, because arm 1 is integral type structure, lifting 11 Hes of section of arm 1
The arm of force meeting equal proportion change of balancing segment 12, is conducive to keeping lifting section 11 and the stress balance of balancing segment 12 in amplitude changing process,
The security of arm 1 is improved, is that hoisting operation offers convenience while increasing its safe luffing scope.In the present embodiment,
In order to reduce burden of the luffing unit 3 in operation, when lift heavy dolly 111 is unloaded, the torque of balancing segment 12 of arm 1 is more than
Weight section 11, the load for compensating lifting section 11 during operation.Compared with traditional tower crane structure, the arm 1 of integral structure is steady
It is qualitative higher, and when adjusting the horizontal amplitude of arm 1, its balancing segment 12 and the torque arm length equal proportion of lifting section 11 become
Change, be more beneficial for keeping the stress balance of arm 1, prevent the excessive safety for causing arm 1 to occur toppling over or deform of side stress
Accident.
Embodiment described above is only preferred embodiment of the present utility model, and any form is not done to the utility model
On limitation.Any those skilled in the art, in the case where not departing from technical solutions of the utility model ambit, using upper
The technology contents for stating announcement make more possible variations and retouching to technical solutions of the utility model, or modification is accordingly to be regarded as being equal
The equivalent embodiment of change.Therefore all contents without departing from technical solutions of the utility model, made according to the thinking of the utility model
Equivalent equivalence changes, all should be covered by protection domain of the present utility model.
Claims (1)
1. a kind of swing arm tower crane with integral type arm, including tower body（2）And arm（1）, the tower body（2）Including positioned at it
The transition segment on top（21）, it is characterised in that：The arm（1）For integral type structure and with the transition segment（21）It is hinged, with
The arm（1）With transition segment（21）Between hinged support be boundary by arm（1）It is divided into lifting section（11）And balancing segment
（12）, wherein lifting section（11）On slidably connect lift heavy dolly（111）, the balancing segment（12）Provided with balancing weight
（121）；The transition segment（21）With arm（1）Between be also associated be used for adjust tower body（2）And arm（1）The luffing list of angle
Member（3）；The luffing unit（3）For two ends respectively with transition segment（21）And arm（1）The oil cylinder being hinged, wherein the luffing unit
（3）With arm（1）Between pin joint be located at arm（1）Lifting section（11）；Described tower body（2）Including from top to bottom successively
The transition segment of setting（21）, rotary support（22）, jacking section（23）And base section（24）, in addition to change and be enclosed on base section（24）On
Outer sleeve frame（25）；When the lift heavy dolly（111）When unloaded, the arm（1）Balancing segment（12）Torque is more than lifting section
（11）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621395248.3U CN206615940U (en) | 2016-12-19 | 2016-12-19 | A kind of swing arm tower crane with integral type arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621395248.3U CN206615940U (en) | 2016-12-19 | 2016-12-19 | A kind of swing arm tower crane with integral type arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206615940U true CN206615940U (en) | 2017-11-07 |
Family
ID=60229765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621395248.3U Active CN206615940U (en) | 2016-12-19 | 2016-12-19 | A kind of swing arm tower crane with integral type arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206615940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110371840A (en) * | 2019-08-06 | 2019-10-25 | 庄俊 | A kind of lifting supporting beam of adjustable in length |
-
2016
- 2016-12-19 CN CN201621395248.3U patent/CN206615940U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110371840A (en) * | 2019-08-06 | 2019-10-25 | 庄俊 | A kind of lifting supporting beam of adjustable in length |
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