CN201485205U - Gantry crane rotating mechanism - Google Patents
Gantry crane rotating mechanism Download PDFInfo
- Publication number
- CN201485205U CN201485205U CN2009201864778U CN200920186477U CN201485205U CN 201485205 U CN201485205 U CN 201485205U CN 2009201864778 U CN2009201864778 U CN 2009201864778U CN 200920186477 U CN200920186477 U CN 200920186477U CN 201485205 U CN201485205 U CN 201485205U
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- CN
- China
- Prior art keywords
- output shaft
- bearing
- rotating mechanism
- drive pinion
- gantry crane
- 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 - Fee Related
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Abstract
The utility model discloses a gantry crane rotating mechanism, which comprises a rotating disc. A planetary speed reducer is arranged on the upper end of the rotating disc and connected with an electric motor through a friction coupler, the friction coupler is provided with a brake, an output shaft of the planetary speed reducer is arranged inside the rotating disc, an output shaft tank body is arranged on the outer side of the output shaft, the output shaft is supported at the lower end of the output shaft tank body through an upper bearing, a driving pinion is arranged on the output shaft, the driving pinion and a revolving bearing are meshed mutually, a supporting base is arranged at the lower end of the output shaft tank body, and the lower end of the output shaft is supported on the supporting base through a lower bearing. The gantry crane rotating mechanism has the advantages that the supporting form of the driving pinion supported at the lower end of the output shaft is changed into an upper and lower side supporting form from an original hanging arm form, and then bending moment of a supporting portion of the output shaft is halved, thereby prolonging service life of the output shaft.
Description
Technical field
The utility model relates to a kind of span winch, relates in particular to a kind of rotating mechanism that is used on the span winch.
Background technology
Existing span winch rotating mechanism, comprise: the span winch rotating mechanism, comprise: rotating disk, upper end at rotating disk is provided with planetary reducer, planetary reducer is connected with electrical motor by friction coupling, friction coupling is provided with drg, the output shaft of planetary reducer is arranged in the rotating disk, arranged outside at output shaft has the output shaft casing, output shaft is bearing on the lower end of output shaft casing by head bearing, the lower end of output shaft is provided with Drive pinion, and Drive pinion is meshing with each other with the driven gear that is arranged on the swing bearing.Drive pinion is a cantilevered at the support pattern of output shaft lower end in the span winch rotating mechanism of said mechanism, causes the moment of flexure at output shaft supporting position bigger, and long-term use causes fatigue to make the output shaft fracture easily.Under the strong wind atmosphere or the situation of lift heavy emergency braking, bigger in addition to the impact of output shaft, also be easy to output shaft is ruptured, the service life of output shaft is shorter.
The utility model content
Technical problem to be solved in the utility model is: provide a kind of service life long span winch rotating mechanism.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: the span winch rotating mechanism, comprise: rotating disk, upper end at rotating disk is provided with planetary reducer, planetary reducer is connected with electrical motor by friction coupling, friction coupling is provided with drg, the output shaft of planetary reducer is arranged in the rotating disk, arranged outside at output shaft has the output shaft casing, output shaft is bearing on the lower end of output shaft casing by head bearing, output shaft is provided with Drive pinion, Drive pinion and swing bearing are meshing with each other, the lower end of described output shaft casing is provided with bearing, and the lower end of output shaft is bearing on the bearing by lower bearing.
The utility model has the advantages that: the span winch rotating mechanism of this structure, change the support pattern of Drive pinion into two-side supporting up and down by original cantilevered in the output shaft lower end, make the moment of flexure of output shaft supporting part become original half, output shaft can correspondingly reduce, simultaneously, transmission between output shaft and the Drive pinion becomes pure torsion, Drive pinion can be cooperated better with driven gear on the swing bearing, under the strong wind atmosphere or the situation of drg braking, impact to output shaft is less, be not easy to make output shaft to rupture, prolonged the service life of output shaft.
Description of drawings
Fig. 1 is the structural representation of the utility model span winch rotating mechanism.
Among the figure: 1, rotating disk, 2, planetary reducer, 3, friction coupling, 4, electrical motor, 5, drg, 6, output shaft, 7, the output shaft casing, 8, head bearing, 9, Drive pinion, 10, swing bearing, 11, bearing, 12, lower bearing.
The specific embodiment
Describe particular content of the present utility model in detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the span winch rotating mechanism, comprise: rotating disk 1, be provided with planetary reducer 2 in the upper end of rotating disk 1, planetary reducer 2 is connected with electrical motor 4 by friction coupling 3, friction coupling 3 is provided with drg 5, the output shaft 6 of planetary reducer 2 is arranged in the rotating disk 1, arranged outside at output shaft 6 has output shaft casing 7, output shaft 6 is bearing in by head bearing 8 on the lower end of output shaft casing 7, and output shaft 6 is provided with Drive pinion 9, and Drive pinion 9 is meshing with each other with swing bearing 10, the lower end of described output shaft casing 7 is provided with bearing 11, and the lower end of output shaft 6 is bearing on the bearing 11 by lower bearing 12.
As shown in Figure 1, when the span winch rotating mechanism of said structure uses, driving planetary reducer 2 by electrical motor 4 by friction coupling 3 rotates, the output shaft 6 of planetary reducer 2 drives Drive pinion 9 and rotates, Drive pinion 9 is meshing with each other with swing bearing 10, rotates thereby drive swing bearing 10.The span winch rotating mechanism of said structure, change the support pattern of Drive pinion 9 into two-side supporting up and down by original cantilevered in output shaft 6 lower ends, make the moment of flexure of output shaft 6 supporting parts become original half, output shaft 8 can correspondingly reduce, simultaneously, transmission between output shaft 6 and the Drive pinion 9 becomes pure torsion, Drive pinion 9 can be cooperated better with swing bearing 10, under the strong wind atmosphere or the situation of drg 5 brakings, impact to output shaft 6 is less, be not easy to make output shaft 6 to rupture, prolonged the service life of output shaft 6.
Claims (1)
1. span winch rotating mechanism, comprise: rotating disk (1), be provided with planetary reducer (2) in the upper end of rotating disk (1), planetary reducer (2) is connected with electrical motor (4) by friction coupling (3), friction coupling (3) is provided with drg (5), the output shaft (6) of planetary reducer (2) is arranged in the rotating disk (1), arranged outside at output shaft (6) has output shaft casing (7), output shaft (6) is bearing on the lower end of output shaft casing (7) by head bearing (8), output shaft (6) is provided with Drive pinion (9), Drive pinion (9) is meshing with each other with swing bearing (10), it is characterized in that: the lower end of described output shaft casing (7) is provided with bearing (11), and the lower end of output shaft (6) is bearing on the bearing (11) by lower bearing (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201864778U CN201485205U (en) | 2009-07-20 | 2009-07-20 | Gantry crane rotating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201864778U CN201485205U (en) | 2009-07-20 | 2009-07-20 | Gantry crane rotating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201485205U true CN201485205U (en) | 2010-05-26 |
Family
ID=42424095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201864778U Expired - Fee Related CN201485205U (en) | 2009-07-20 | 2009-07-20 | Gantry crane rotating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201485205U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920909A (en) * | 2010-09-06 | 2010-12-22 | 上海三一科技有限公司 | Mounting device of rotary speed reducer of crane and using method thereof |
| CN103115136B (en) * | 2013-03-06 | 2016-01-20 | 徐州科源液压股份有限公司 | Rotary reducer |
-
2009
- 2009-07-20 CN CN2009201864778U patent/CN201485205U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920909A (en) * | 2010-09-06 | 2010-12-22 | 上海三一科技有限公司 | Mounting device of rotary speed reducer of crane and using method thereof |
| CN101920909B (en) * | 2010-09-06 | 2013-04-24 | 上海三一科技有限公司 | Mounting device of rotary speed reducer of crane and using method thereof |
| CN103115136B (en) * | 2013-03-06 | 2016-01-20 | 徐州科源液压股份有限公司 | Rotary reducer |
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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: 20100526 Termination date: 20150720 |
|
| EXPY | Termination of patent right or utility model |