CN203269413U - Main steel wire rope winding mechanism of QTZ type hammer head tower crane - Google Patents
Main steel wire rope winding mechanism of QTZ type hammer head tower crane Download PDFInfo
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- CN203269413U CN203269413U CN 201320314238 CN201320314238U CN203269413U CN 203269413 U CN203269413 U CN 203269413U CN 201320314238 CN201320314238 CN 201320314238 CN 201320314238 U CN201320314238 U CN 201320314238U CN 203269413 U CN203269413 U CN 203269413U
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- tower crane
- steel wire
- wire rope
- main steel
- qtz
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Abstract
The utility model discloses a main steel wire rope winding mechanism of a QTZ type hammer head tower crane. The main steel wire rope winding mechanism consists of an upper pulley, a load lifting limiter and a lower pulley, wherein the upper pulley is fixedly arranged on an upper chord of a cargo boom of a tower crane through a supporting plate, the load lifting limiter is arranged on a rotary joint of the tower crane, and the lower pulley is arranged on a lower chord of the cargo boom. A steel wire rope sequentially bypassing the upper pulley, the load lifting limiter and the lower pulley is connected with a luffing trolley. The main steel wire rope winding mechanism disclosed by the utility model has the beneficial effects that the rope winding mechanism is simple in structure, convenient to install and relatively material-saving; the main steel wire rope does not rub with a diagonal web member of the rotary joint, so that the service life of the main steel wire rope is greatly prolonged; and a lifting mechanism is stable in operation and efficient, so that the work efficiency of the tower crane is ensured, and the failure rate of the tower crane is greatly reduced.
Description
Technical field
The utility model relates to a kind of flat-top tower crane main rope wiring mechanism, particularly a kind of QTZ type flat-top tower crane main rope wiring mechanism.
Background technology
At present, the flat-top tower crane main rope wiring mechanism that generally uses in use, exists more problem because structure design is unreasonable, and mainly contain: 1, main rope rubs mutually with the diagonal web member of swivel; 2, the lifting mechanism operation is steady not; 3, the bracing frame distortion is serious.
Owing to there being the problems referred to above, cause flat-top tower crane fault rate in use higher, seriously reduced the work efficiency of flat-top tower crane.
Summary of the invention
The purpose of this utility model is in order to solve the unreasonable of existing flat-top tower crane structure design, more problems in use procedure, fault rate is higher and work efficiency reduces problem and a kind of QTZ type flat-top tower crane main rope wiring mechanism that provides.
QTZ type flat-top tower crane main rope wiring described in the utility model mechanism is comprised of top sheave, load lifting limiter and lower sheave, wherein top sheave is fixed on derrick runway girder winds up by stay bearing plate, load lifting limiter is located on tower machine swivel, lower sheave is located on the crane arm lower edge, and steel rope is walked around successively top sheave, load lifting limiter and lower sheave and is connected with amplitude variation trolley.
The distance H at the vertical line of centers of top sheave and swivel center is 2.88 meters.
The included angle A that the steel rope winding is crossed after top sheave is 13 °.
The beneficial effects of the utility model:
Simple in structure, easy for installation, relatively save material, the diagonal web member of main rope and swivel can not rub, greatly extended the service life of main rope, and lifting mechanism operates steadily, efficiently, guaranteed the work efficiency of tower machine, greatly reduced the fault rate of tower machine.
Description of drawings
Fig. 1 is structural representation of the present utility model.
1, top sheave 2, load lifting limiter 3, lower sheave 4, stay bearing plate 5, swivel
6, crane arm wind up 7, swivel 8, crane arm lower edge 9, steel rope 10, amplitude variation trolley.
The specific embodiment
See also shown in Figure 1:
QTZ type flat-top tower crane main rope wiring described in the utility model mechanism is comprised of top sheave 1, load lifting limiter 2 and lower sheave 3, wherein top sheave 1 is fixed on crane arm by stay bearing plate 4 and winds up on 6, load lifting limiter 2 is located at the upper end of tower machine swivel 7, lower sheave 3 is located on crane arm lower edge 8, and steel rope 9 is walked around successively top sheave 1, load lifting limiter 2 and lower sheave 3 and is connected with amplitude variation trolley 10.
The distance H at the vertical line of centers of top sheave 1 and swivel 5 centers is 2.88 meters.
The included angle A that steel rope 9 windings are crossed after top sheave 1 is 13 °.
Claims (3)
1. QTZ type flat-top tower crane main rope wiring mechanism, it is characterized in that: formed by top sheave, load lifting limiter and lower sheave, wherein top sheave is fixed on derrick runway girder winds up by stay bearing plate, load lifting limiter is located on tower machine swivel, lower sheave is located on the crane arm lower edge, and steel rope is walked around successively top sheave, load lifting limiter and lower sheave and is connected with amplitude variation trolley.
2. QTZ type flat-top tower crane main rope wiring according to claim 1 mechanism is characterized in that: the distance H at the vertical line of centers of described top sheave and swivel center is 2.88 meters.
3. QTZ type flat-top tower crane main rope wiring according to claim 1 mechanism, it is characterized in that: the included angle A that described steel rope winding is crossed after top sheave is 13 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320314238 CN203269413U (en) | 2013-06-03 | 2013-06-03 | Main steel wire rope winding mechanism of QTZ type hammer head tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320314238 CN203269413U (en) | 2013-06-03 | 2013-06-03 | Main steel wire rope winding mechanism of QTZ type hammer head tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203269413U true CN203269413U (en) | 2013-11-06 |
Family
ID=49499865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320314238 Expired - Fee Related CN203269413U (en) | 2013-06-03 | 2013-06-03 | Main steel wire rope winding mechanism of QTZ type hammer head tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203269413U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366573A (en) * | 2015-10-30 | 2016-03-02 | 徐州建机工程机械有限公司 | Arrangement form of load lifting limiter of cantilever tower crane |
-
2013
- 2013-06-03 CN CN 201320314238 patent/CN203269413U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366573A (en) * | 2015-10-30 | 2016-03-02 | 徐州建机工程机械有限公司 | Arrangement form of load lifting limiter of cantilever tower crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20150603 |
|
| EXPY | Termination of patent right or utility model |