CN104058341A - Individual height increasing device of tower crane - Google Patents
Individual height increasing device of tower crane Download PDFInfo
- Publication number
- CN104058341A CN104058341A CN201410323974.3A CN201410323974A CN104058341A CN 104058341 A CN104058341 A CN 104058341A CN 201410323974 A CN201410323974 A CN 201410323974A CN 104058341 A CN104058341 A CN 104058341A
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- tower
- crane
- tie
- tower crane
- hinged
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Abstract
The invention discloses an individual height increasing device of a tower crane. The individual height increasing device of the tower crane comprises four flying arms, tightening hydraulic cylinders and amplitude variable pull plates, wherein one ends of the flying arms are connected with a bearing base of the crane, and the other ends of the flying arms are hinged with the tightening hydraulic cylinders; the amplitude variable pull plates are respectively of a multiple section hinged chain structure, the upper ends of the amplitude variable pull plates are hinged with the other ends of the tightening hydraulic cylinders, and the lower ends of the amplitude variable pull plates are hinged with a bottom beam or a foundation of the crane; the angle of 45 degrees is formed between each flying arm and a tower body. The invention also discloses the tower crane with the individual height increasing device. The individual height increasing device is arranged between the bearing base and the bottom beam of the crane. Compared with the prior art, the individual height increasing device has the beneficial effects that the individual height of the existing tower crane can be increased greatly, the requirements on the tower crane structure and buildings are lowered, the connection pull force of standard joints of a tower body is reduced, the performance of the whole crane is improved, and the cost of the whole crane is lowered.
Description
Technical field
The present invention relates to a kind of tower crane unattached height increases device and tower crane, belongs to engineering machinery field.
Background technology
The tower body of existing tower crane bears from the vertical load of topside and unbalanced moment, and its mechanical model is that upper end is subject to vertical load, side direction horizontal power and moment of flexure, and middle part is also subject to side direction distributed wind loading lotus, and lower end is fixed.Tower body design is subject to the restriction of resistance to overturning.Surpass after unattached height, conventionally tower body need to be attached to building, to solve tower body global stability problem.Attachment scheme is often subject to the restriction of architecture construction progress, and tower body attachment segment and building junction all need to carry out special reinforcement processing simultaneously.Tower machine and building are all proposed to high requirement.
Summary of the invention
Technical matters to be solved by this invention is the defect existing for prior art, and a kind of unattached height increase device that significantly promotes existing tower machine unattached height of realizing is provided.
For solving this technical matters, the invention provides a kind of tower crane unattached height increases device, comprises fly jib, tightens up hydraulic actuating cylinder and luffing arm-tie, and described fly jib one end is connected with hoisting crane bearing, the other end and to tighten up hydraulic actuating cylinder hinged; Described luffing arm-tie is the hinged chain pattern of more piece, and its upper end is hinged with the other end that tightens up hydraulic actuating cylinder, and lower end is articulated with hoisting crane bottom girder or ground; Described fly jib is provided with 4, is 45 ° of directions arranges with tower body.
The length of the single-unit arm-tie of described luffing arm-tie is consistent with tower-body standard section height, and quantity changes with tower body unattached height.
Described fly jib adopts pin to be connected with hoisting crane bearing or flange connects.
The present invention also provides a kind of tower crane that unattached height increases device that is provided with, between described hoisting crane bearing and hoisting crane bottom girder, be provided with unattached height and increase device, tightening up hydraulic actuating cylinder contraction and make luffing arm-tie reach pretension design value, there is pulling force in top moment of flexure luffing arm-tie in 360 ° of turning courses all the time.
Beneficial effect: the present invention compared with prior art, can significantly promote existing tower machine unattached height, reduces the requirement to tower machine structure and building, reduces the connection pulling force of tower-body standard section simultaneously, promotes overall performance, reduces complete machine cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of hoisting crane of the present invention.
In figure: 1 hoisting crane bearing, 2 fly jibs, 3 tighten up hydraulic actuating cylinder, 4 luffing arm-ties, 5 hoisting crane bottom girders, 6 unattached heights increase devices.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is specifically described.
Figure 1 shows that structural representation of the present invention.
The present invention includes fly jib 2, tighten up hydraulic actuating cylinder 3 and luffing arm-tie 4.
Described fly jib 2 one end are connected with hoisting crane bearing 1, and the other end is with to tighten up hydraulic actuating cylinder 3 hinged.
Described luffing arm-tie 4 is the hinged chain pattern of more piece, and its upper end is hinged with the other end that tightens up hydraulic actuating cylinder 3, and lower end is articulated with hoisting crane bottom girder 5 or ground.
Described fly jib 2 is provided with 4, is 45 ° of directions arranges with tower body.
The length of the single-unit arm-tie of described luffing arm-tie 4 is consistent with tower-body standard section height, and quantity changes with tower body unattached height.
Hydraulic actuating cylinder 3 jacking tower body are tightened up in release, and the contour single-unit arm-tie shell of access length and tower-body standard section is realized the object that changes tower body height.
Figure 2 shows that the structural representation of hoisting crane of the present invention.
A kind of tower crane that is provided with unattached height increase device, between hoisting crane bearing 1 and hoisting crane bottom girder 5, be provided with unattached height and increase device 6, tightening up hydraulic actuating cylinder 3 contractions and make luffing arm-tie 4 reach pretension design value, there is pulling force in top moment of flexure luffing arm-tie 4 in 360 ° of turning courses all the time.
Principle of work of the present invention:
Working: make luffing arm-tie 4 reach pretension design value by tightening up hydraulic actuating cylinder 3 contractions, the benefit that luffing arm-tie 4 is subject to pretension is in advance to guarantee that top moment of flexure is in 360 ° of turning courses, and the single-unit arm-tie of each luffing arm-tie 4 exists pulling force all the time.
Jacking operating mode: discharge hydraulic actuating cylinder jacking tower body, and access length and the contour arm-tie of tower-body standard section.
The present invention compared with prior art, can significantly promote existing tower machine unattached height, reduces the requirement to tower machine structure and building, reduces the connection pulling force of tower-body standard section simultaneously, promotes overall performance, reduces complete machine cost.
Groundwork of the present invention and advantage have more than been described, the above-mentioned embodiment of the present invention, just casehistory, is not only, change within the scope of the present invention all or that be equal in scope of the present invention is all surrounded by the present invention.
Claims (5)
1. a tower crane unattached height increases device, it is characterized in that: comprise fly jib (2), tighten up hydraulic actuating cylinder (3) and luffing arm-tie (4), described fly jib (2) one end is connected with hoisting crane bearing (1), and the other end is with to tighten up hydraulic actuating cylinder (3) hinged; Described luffing arm-tie (4) is the hinged chain pattern of more piece, and its upper end is hinged with the other end that tightens up hydraulic actuating cylinder (3), and lower end is articulated with hoisting crane bottom girder (5) or ground; Described fly jib (2) is provided with 4, is 45 ° of directions arranges with tower body.
2. tower crane unattached height according to claim 1 increases device, it is characterized in that: the length of the single-unit arm-tie of described luffing arm-tie (4) is consistent with tower-body standard section height, and quantity changes with tower body unattached height.
3. tower crane unattached height according to claim 1 increases device, it is characterized in that: described fly jib (2) adopts pin to be connected with hoisting crane bearing (1) or flange connects.
4. tower crane unattached height according to claim 2 increases device, it is characterized in that: described fly jib (2) adopts pin to be connected with hoisting crane bearing (1) or flange connects.
5. one kind is provided with the tower crane that as described in claim 1-4 any one unattached height increases device, it is characterized in that: between described hoisting crane bearing (1) and hoisting crane bottom girder (5), being provided with unattached height increases device (6), tightening up hydraulic actuating cylinder (3) contraction and make luffing arm-tie (4) reach pretension design value, there is pulling force in top moment of flexure luffing arm-tie (4) in 360 ° of turning courses all the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410323974.3A CN104058341A (en) | 2014-07-08 | 2014-07-08 | Individual height increasing device of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410323974.3A CN104058341A (en) | 2014-07-08 | 2014-07-08 | Individual height increasing device of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104058341A true CN104058341A (en) | 2014-09-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410323974.3A Pending CN104058341A (en) | 2014-07-08 | 2014-07-08 | Individual height increasing device of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104058341A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109734005A (en) * | 2019-01-26 | 2019-05-10 | 湖南维尔力德科技有限公司 | Multidirectional drawstring formula crane tower body systems stabilisation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6702132B1 (en) * | 1999-03-19 | 2004-03-09 | Link-Belt Construction Equipment Company, L.P., Lllp | Crane self-assembly system |
| CN201580924U (en) * | 2009-12-04 | 2010-09-15 | 陈洪宇 | Safety protector for body of tower hoist |
| CN203255892U (en) * | 2013-04-15 | 2013-10-30 | 江苏大通重工有限公司 | Heightened gantry type crane |
| CN103407902A (en) * | 2013-08-28 | 2013-11-27 | 哈尔滨工业大学 | Arm-folding type tower crane jacking device and method for increasing height of tower crane |
| CN203938401U (en) * | 2014-07-08 | 2014-11-12 | 山东丰汇设备技术有限公司 | Tower crane unattached height increases device |
-
2014
- 2014-07-08 CN CN201410323974.3A patent/CN104058341A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6702132B1 (en) * | 1999-03-19 | 2004-03-09 | Link-Belt Construction Equipment Company, L.P., Lllp | Crane self-assembly system |
| CN201580924U (en) * | 2009-12-04 | 2010-09-15 | 陈洪宇 | Safety protector for body of tower hoist |
| CN203255892U (en) * | 2013-04-15 | 2013-10-30 | 江苏大通重工有限公司 | Heightened gantry type crane |
| CN103407902A (en) * | 2013-08-28 | 2013-11-27 | 哈尔滨工业大学 | Arm-folding type tower crane jacking device and method for increasing height of tower crane |
| CN203938401U (en) * | 2014-07-08 | 2014-11-12 | 山东丰汇设备技术有限公司 | Tower crane unattached height increases device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109734005A (en) * | 2019-01-26 | 2019-05-10 | 湖南维尔力德科技有限公司 | Multidirectional drawstring formula crane tower body systems stabilisation |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140924 |