CN203938401U - Tower crane unattached height increases device - Google Patents
Tower crane unattached height increases device Download PDFInfo
- Publication number
- CN203938401U CN203938401U CN201420373683.0U CN201420373683U CN203938401U CN 203938401 U CN203938401 U CN 203938401U CN 201420373683 U CN201420373683 U CN 201420373683U CN 203938401 U CN203938401 U CN 203938401U
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- China
- Prior art keywords
- tower
- tie
- hoisting crane
- increases device
- actuating cylinder
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- Expired - Lifetime
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- 230000008602 contraction Effects 0.000 claims description 4
- 230000008901 benefit Effects 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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Abstract
The utility model discloses 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 invention also discloses a kind of tower crane that unattached height increases device that is provided with, between described hoisting crane bearing and hoisting crane bottom girder, being provided with unattached height increases device.The utility model 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.
Description
Technical field
The utility model 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 problem to be solved in the utility model 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 utility model provides a kind of tower crane unattached height to increase 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 utility model 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 utility model 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 utility model;
Fig. 2 is the structural representation of the utility model hoisting crane.
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 utility model is specifically described.
Figure 1 shows that structural representation of the present utility model.
The utility model comprises fly jib 2, tightens 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 the utility model hoisting crane.
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 utility model:
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 utility model 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 utility model and advantage have more than been described, the above-mentioned embodiment of the utility model, just casehistory, is not only, all within the scope of the utility model or the change being equal in scope of the present utility model all by the utility model, surrounded.
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 |
|---|---|---|---|
| CN201420373683.0U CN203938401U (en) | 2014-07-08 | 2014-07-08 | Tower crane unattached height increases device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420373683.0U CN203938401U (en) | 2014-07-08 | 2014-07-08 | Tower crane unattached height increases device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203938401U true CN203938401U (en) | 2014-11-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420373683.0U Expired - Lifetime CN203938401U (en) | 2014-07-08 | 2014-07-08 | Tower crane unattached height increases device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203938401U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058341A (en) * | 2014-07-08 | 2014-09-24 | 山东丰汇设备技术有限公司 | Individual height increasing device of tower crane |
| 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 |
-
2014
- 2014-07-08 CN CN201420373683.0U patent/CN203938401U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058341A (en) * | 2014-07-08 | 2014-09-24 | 山东丰汇设备技术有限公司 | Individual height increasing device of tower crane |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |