CN201961999U - Hoisting mechanism of tower crane - Google Patents
Hoisting mechanism of tower crane Download PDFInfo
- Publication number
- CN201961999U CN201961999U CN201020684298XU CN201020684298U CN201961999U CN 201961999 U CN201961999 U CN 201961999U CN 201020684298X U CN201020684298X U CN 201020684298XU CN 201020684298 U CN201020684298 U CN 201020684298U CN 201961999 U CN201961999 U CN 201961999U
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- CN
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- Prior art keywords
- fixed pulley
- pulley group
- pulley block
- block
- running block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 230000007246 mechanism Effects 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
A hoisting mechanism of a tower crane comprises six pulley blocks and a steel wire rope, wherein the six pulley blocks comprise four fixed pulley blocks positioned at the upper part and two movable pulley blocks positioned at the lower part; the four fixed pulley blocks include a first fixed pulley block (1), a second fixed pulley block (2), a third fixed pulley block (3) and a fourth fixed pulley block (4); the movable pulley blocks include a first movable pulley block (5) and a second movable pulley block (6); pulley baffles arranged on opposite sides of the two movable pulley blocks (5 and 6) are partially cut; and the steel wire rope passes through the second fixed pulley block (2), the third fixed pulley block (3), the first movable pulley block (5), the second movable pulley block (6), the first fixed pulley block (1), a second fixed pulley block (2), the second movable pulley block (6), the fourth fixed pulley block (4), the first movable pulley block (5), the third fixed pulley block (3) and the fourth fixed pulley block (4) in sequence, so that the hoisting ratio of the hoisting mechanism is six.
Description
Technical field
The utility model relates to a kind of tower lifting mechanism.
Background technology
Tower crane is that heavy construction is widely used in building operation projects such as industrial premises, power station, bridge, civil construction with weight-lifting equipment.But, lifting mechanism of tower crane appearance rope amount normally has certain limitation.And its work multiplying power that hoists is also fixed, and is generally 4 or 8.For example: the M125/75 tower crane, it holds the rope amount: 840m, and its work multiplying power that hoists is: during 4 or 8,4 multiplying powers, the biggest lifting capacity of tower crane is 25t, and maximum sling height is about 185 meters, and (lifting altitude=(steel rope length overall-100)/the work multiplying power hoists; Wherein 100 is length on crane arm and the equilibrium arm); When 8 multiplying powers were worked, the biggest lifting capacity of tower crane was: 50t, maximum sling height is 92.5 meters.But the maximum weight that the weight that need lift by crane at tower crane can be lifted by crane during greater than 4 multiplying powers, lifting maximum weight less than 8 multiplying powers, but its sling height is greater than the maximum sling height of 8 multiplying powers, during less than the maximum sling height of 4 multiplying powers, for example: need lifting altitude to reach 120 meters and hoisting capacity and satisfy 35 tons, the existing multiplying power setting of tower crane this moment can't be satisfied the lifting requirement.
The utility model content
According to the problem that is run in the tower crane place hoisting heavy process in the prior art, the utility model provides a kind of novel tower-type crane hoisting mechanism, and the work that the hoists multiplying power of this lifting mechanism is 6 multiplying powers.Described lifting mechanism comprises six assembly pulleys and steel rope, and wherein assembly pulley is: four fixed pulley group and two two running blocks that are positioned at the below that are positioned at the top; Four fixed pulley groups are: the first fixed pulley group, the second fixed pulley group, the 3rd fixed pulley group, the 4th fixed pulley group; Two running blocks are: first running block, second running block; The pulley baffle part of the relative side of described running block cuts away, steel rope passes the second fixed pulley group, the 3rd fixed pulley group, first running block, second running block, the first fixed pulley group, the second fixed pulley group, second running block, the 4th fixed pulley group, first running block, the 3rd fixed pulley group and the 4th fixed pulley group successively, and making described lifting mechanism is 6 multiplying power lifting mechanisms.
Description of drawings
Fig. 1 is the structural representation of the utility model tower crane assembly pulley.
The specific embodiment
As shown in Figure 1, the lifting mechanism of tower crane comprises six assembly pulleys: four fixed pulley group and two two running blocks that are positioned at the below that are positioned at the top; Four fixed pulley groups are: the first fixed pulley group 1, the second fixed pulley group 2, the 3rd fixed pulley group 3, the 4th fixed pulley group 4; Two running blocks are: first running block 5, second running block 6.Before assembling, the pulley baffle part of two running blocks, 5,6 relative sides is cut away, make the steel rope can be from the pulley the running block is worn pulley to another running block relatively.Steel rope 7 is according to the direction of arrow among the figure second fixed pulley group 2, the 3rd fixed pulley group 3 successively, penetrate then in first running block 5, penetrate into again in second movable pulley 6, pass the first fixed pulley group 1, second running block 2 then successively, pass second running block 6 again, and then pass the first fixed pulley group 1, second running block 2 successively, pass second running block 6 once more, and then pass the 4th fixed pulley group 4, first running block 5 successively, behind last steel wire penetrating the 3rd fixed pulley group 3 and the 4th running block 4, pass lifting mechanism.6 multiplying powers have so just been formed at lifting mechanism.
Use 6 multiplying power lifting mechanisms in the utility model, can under the appearance rope amount unmodified situation of lifting mechanism, make tower crane can realize the lifting task that 4/8 multiplying power lifting mechanism be can not be completed.Enlarged the Applicable scope of tower crane.
Claims (1)
1. the lifting mechanism of a tower crane is characterized by, and described lifting mechanism comprises six assembly pulleys and steel rope, and wherein assembly pulley is: four fixed pulley group and two two running blocks that are positioned at the below that are positioned at the top; Four fixed pulley groups are: the first fixed pulley group (1), the second fixed pulley group (2), the 3rd fixed pulley group (3), the 4th fixed pulley group (4); Two running blocks are: first running block (5), second running block (6); The pulley baffle part of the relative side of described two running blocks (5,6) cuts away, steel rope passes the second fixed pulley group (2), the 3rd fixed pulley group (3), first running block (5), second running block (6), the first fixed pulley group (1), the second fixed pulley group (2), second running block (6), the 4th fixed pulley group (4), first running block (5), the 3rd fixed pulley group (3) and the 4th fixed pulley group (4) successively, and making described lifting mechanism is 6 multiplying power lifting mechanisms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020684298XU CN201961999U (en) | 2010-12-28 | 2010-12-28 | Hoisting mechanism of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020684298XU CN201961999U (en) | 2010-12-28 | 2010-12-28 | Hoisting mechanism of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201961999U true CN201961999U (en) | 2011-09-07 |
Family
ID=44524534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020684298XU Expired - Lifetime CN201961999U (en) | 2010-12-28 | 2010-12-28 | Hoisting mechanism of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201961999U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102627228A (en) * | 2012-04-11 | 2012-08-08 | 中联重科股份有限公司 | Tower crane and its hook assembly |
| CN103395702A (en) * | 2013-08-19 | 2013-11-20 | 中联重科股份有限公司 | Lifting mechanism and crane with same |
| CN104058345A (en) * | 2014-04-15 | 2014-09-24 | 郑州科润机电工程有限公司 | Sliding wheel mechanism for lifting machine |
-
2010
- 2010-12-28 CN CN201020684298XU patent/CN201961999U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102627228A (en) * | 2012-04-11 | 2012-08-08 | 中联重科股份有限公司 | Tower crane and its hook assembly |
| CN102627228B (en) * | 2012-04-11 | 2014-05-21 | 中联重科股份有限公司 | Tower crane and its hook assembly |
| CN103395702A (en) * | 2013-08-19 | 2013-11-20 | 中联重科股份有限公司 | Lifting mechanism and crane with same |
| CN103395702B (en) * | 2013-08-19 | 2016-08-10 | 中联重科股份有限公司 | Lifting mechanism and crane with same |
| CN104058345A (en) * | 2014-04-15 | 2014-09-24 | 郑州科润机电工程有限公司 | Sliding wheel mechanism for lifting machine |
| CN104058345B (en) * | 2014-04-15 | 2016-06-08 | 郑州科润机电工程有限公司 | A kind of pulley mechanism of hoisting machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING ZENHE ENGINEERING EQUIPMENT SERVICES CO., Free format text: FORMER OWNER: BEIJING ZHONGJIAN ZENHE CONSTRUCTION MACHINERY CONSTRUCTION CO., LTD. Effective date: 20121018 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121018 Address after: 100102, Beijing, Chaoyang District, Tong Tung Street, No. 6 Fang Heng International B block, room 1207 Patentee after: BEIJING ZENHE ENGINEERING EQUIPMENT SERVICE CO., LTD. Address before: 100102, Beijing, Chaoyang District, Tong Tung Street, No. 6 Fang Heng International B block, room 1207 Patentee before: Beijing Zhongjian Zhenghe Construction Mechanization Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |
|
| CX01 | Expiry of patent term |