CN204852269U - Large vessel advances shafting elastic mounting reducing gear device - Google Patents
Large vessel advances shafting elastic mounting reducing gear device Download PDFInfo
- Publication number
- CN204852269U CN204852269U CN201520577491.6U CN201520577491U CN204852269U CN 204852269 U CN204852269 U CN 204852269U CN 201520577491 U CN201520577491 U CN 201520577491U CN 204852269 U CN204852269 U CN 204852269U
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- China
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- tooth
- gear
- output shaft
- output
- external tooth
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- Withdrawn - After Issue
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Abstract
The utility model provides a large vessel advances shafting elastic mounting reducing gear device, the utility model relates to a reducing gear device, including the output flange, output shaft and supplementary thrust bearing, the output shaft is the cylinder, the output shaft bottom is equipped with the output flange, the output flange passes through bolted connection with main thrust bearing, the output shaft top is equipped with lock nut, output shaft upper portion is equipped with external tooth B, external tooth B is connected with the interference of internal tooth B, the tooth cover external tooth flank of tooth is handled through the high accuracy correction of the flank shape, with output ring gear inner gearing, output shaft and the big moment of torsion of interior external tooth cover transmission hookup problem have been solved effectively, it couples simple structure, it is compact, reliable connection, can satisfy the requirement of large vessel transmission moment of torsion.
Description
technical field:
The utility model relates to a kind of reduction gearing, is specifically related to a kind of large ship Propulsion Systems elasticity and installs reduction gearing.
background technique:
Large ship steam power system reduction gearing is generally double reduction structure.The power of steam turbine passes on screw shaft by reduction gearing, and carrying screws rotates.Reduction gearing is made up of critical pieces such as casing, gear drive, radial journal bearing, high and low pressure side coupling, barring gears.Wherein
level gearwheel adopts overall structure, namely
level gearwheel, output shaft and output flange are an entirety, for reducing the vibration noise level of marine propuision system, by boats and ships general requirement, propulsion system reduction gearing adopts elastic installation way, namely device lower flange is connected with hull pedestal by vibrating isolation system, and be arranged in outside reduction gearing with the main thrust bearings that hull rigidity is installed, the reduction gearing output shaft that mechanical axis and elasticity installs of promoting mainly so just needing rigidity to install matches, otherwise additional force that will be larger to reducer output shaft generation.Reduction gearing is the machinery by gears meshing work, higher to the precise requirements of often pair of working gear face, and transmitted power reaches horsepower up to ten thousand, strictly must control parallelism and the degree of intersection of often pair of engaging gear axis.The output terminal of gearwheel bears extra additional force, deflection is produced by making the axis of gear, affect gears meshing precision, and under making the output bearing of gearwheel be in severe operating conditions, the safety and reliability of serious reduction main reducing gear work, in order to solve the problems of the technologies described above, a kind of new technological scheme of special proposition.
model utility content:
The purpose of this utility model is the deficiency existed to overcome above-mentioned prior art, and provides a kind of large ship Propulsion Systems elasticity to install reduction gearing, and it is easy to use, simple to operate, be easy to large-scale promotion application.
The technical solution adopted in the utility model is: a kind of large ship Propulsion Systems elasticity installs reduction gearing, comprise output flange, output shaft and augmented thrust bearing, output shaft is cylindrical body, output flange is provided with bottom output shaft, output flange and main thrust bearings are bolted, output shaft top is provided with locking nut, output shaft top is provided with external tooth B, external tooth B is connected with internal tooth B interference, it is inner that internal tooth B is positioned at tooth cover, tooth cover outside is provided with external tooth A, external tooth A is meshed with internal tooth A, internal tooth A is positioned on gear ring inwall, gear ring is provided with through hole, gear ring and gearwheel are connected by connecting bolt and connecting bolt passes through hole, gearwheel bilateral symmetry distributes two spring bearings, gearwheel bottom is provided with augmented thrust bearing, gearwheel engages with gear F, gear F is positioned on axle A, axle A bottom is provided with gear A, gear A is meshed with gear B, gear B is positioned on axle B, gear B is meshed with gear C, gear C is positioned on axle C, axle C top is provided with gear D.
Described tooth cover is outer is designed with straight-tooth external tooth, and straight-tooth external tooth is meshed with output ring gear, and external tooth A tooth top is processed into the sphere of band one cylindrical section, and the flank of tooth is through highi degree of accuracy correction of the flank shape process; Tooth cover end face is sphere, coordinates with output ring gear thrust surface.
The beneficial effects of the utility model are: by split list supporting structure, namely gearwheel is Split type structure, output shaft swings at gearwheel internal freedom, the main thrust bearings that the reduction gearing that elasticity is installed and rigidity are installed matches, gearwheel by the impact of output shaft, does not eliminate the harmful effect of external force to gear-box gears meshing.Output shaft and tooth overlap to adopt and overlap tooth interference fit joint, the tooth cover external tooth flank of tooth is through highi degree of accuracy correction of the flank shape process, engage with output ring gear internal tooth, efficiently solve output shaft and interior external tooth cover transmitting large torque articulation issues, its connecting structure is simple, compact, connect reliable, the requirement of large ship transmitting torque can be met.
accompanying drawing illustrates:
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model partial enlarged drawing.
embodiment:
With reference to each figure, a kind of large ship Propulsion Systems elasticity installs reduction gearing, comprise output flange 1, output shaft 2 and augmented thrust bearing 3, output shaft 2 is cylindrical body, output flange 1 is provided with bottom output shaft 2, output flange 1 and main thrust bearings are bolted, output shaft 2 top is provided with locking nut 18, output shaft 2 top is provided with external tooth B19, external tooth B19 is connected with internal tooth B20 interference, it is inner that internal tooth B20 is positioned at tooth cover 17, tooth overlaps 17 outsides and is provided with external tooth A16, external tooth A16 is meshed with internal tooth A15, internal tooth A15 is positioned on gear ring 21 inwall, gear ring 21 is provided with through hole 22, gear ring 21 and gearwheel 10 are connected by connecting bolt and connecting bolt 14 passes through hole 22, gearwheel 10 bilateral symmetry distributes two spring bearings 11, gearwheel 10 bottom is provided with augmented thrust bearing 3, gearwheel 10 engages with gear F9, gear F9 is positioned on axle A12, axle A12 bottom is provided with gear A 4, gear A 4 is meshed with gear B 5, gear B 5 is positioned on axle B8, gear B 5 is meshed with gear C 6, gear C 6 is positioned on axle C13, axle C13 top is provided with gear D 7.Put surely by place for gearwheel 10, output shaft 2 is penetrated the central through bore of gearwheel 10, tooth cover 17 is heated to 120 DEG C, internal tooth B20 is inserted on external tooth B, promote tooth cover 17 and move to assigned position vertically, install locking nut 18, gear ring 21 is installed, with connecting bolt 14, gear ring 21 is connected also tight with gearwheel 10.Its power transimission route is: power system power transimission on gearwheel 10, gearwheel 10 passes through connecting bolt 14 power transimission on gear ring 21, gear ring 21 is engaged by tooth, power transimission on tooth cover 17, tooth cover 17 passed through tooth engagement and was full of connection transmitted power to output shaft 2, output shaft 2 again power transimission to main thrust bearings, and then pass to propeller cavitation.By split list supporting structure, namely gearwheel 10 is Split type structure, output shaft 2 swings at gearwheel 10 internal freedom, the main thrust bearings that the reduction gearing that elasticity is installed and rigidity are installed matches, gearwheel 10 by the impact of output shaft 2, does not eliminate the harmful effect of external force to gear-box gears meshing.Output shaft 2 and tooth overlap 21 and adopt and overlap tooth interference fit joint, tooth overlaps the 21 external tooth flank of tooth through highi degree of accuracy correction of the flank shape process, engage with gear ring 21 internal tooth, efficiently solve output shaft 2 and overlap 17 transmitting large torque connectivity problems with tooth, its linkage structure is simple, compact, connect reliable, the requirement of large ship transmitting torque can be met.
Claims (2)
1. a large ship Propulsion Systems elasticity installs reduction gearing, comprise output flange, output shaft and augmented thrust bearing, it is characterized in that: output shaft is cylindrical body, output flange is provided with bottom output shaft, output flange and main thrust bearings are bolted, output shaft top is provided with locking nut, output shaft top is provided with external tooth B, external tooth B is connected with internal tooth B interference, it is inner that internal tooth B is positioned at tooth cover, tooth cover outside is provided with external tooth A, external tooth A is meshed with internal tooth A, internal tooth A is positioned on gear ring inwall, gear ring is provided with through hole, gear ring and gearwheel are connected by connecting bolt and connecting bolt passes through hole, gearwheel bilateral symmetry distributes two spring bearings, gearwheel bottom is provided with augmented thrust bearing, gearwheel engages with gear F, gear F is positioned on axle A, axle A bottom is provided with gear A, gear A is meshed with gear B, gear B is positioned on axle B, gear B is meshed with gear C, gear C is positioned on axle C, axle C top is provided with gear D.
2. large ship Propulsion Systems elasticity according to claim 1 installs reduction gearing, it is characterized in that: described tooth cover is outer is designed with straight-tooth external tooth, straight-tooth external tooth is meshed with output ring gear, and external tooth A tooth top is processed into the sphere of band one cylindrical section, and the flank of tooth is through highi degree of accuracy correction of the flank shape process; Tooth cover end face is sphere, coordinates with output ring gear thrust surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520577491.6U CN204852269U (en) | 2015-08-04 | 2015-08-04 | Large vessel advances shafting elastic mounting reducing gear device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520577491.6U CN204852269U (en) | 2015-08-04 | 2015-08-04 | Large vessel advances shafting elastic mounting reducing gear device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204852269U true CN204852269U (en) | 2015-12-09 |
Family
ID=54742816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520577491.6U Withdrawn - After Issue CN204852269U (en) | 2015-08-04 | 2015-08-04 | Large vessel advances shafting elastic mounting reducing gear device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204852269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989809A (en) * | 2015-08-04 | 2015-10-21 | 中国船舶重工集团公司第七�三研究所 | Elastically-installed reduction gear device of propulsion shafting of large ship |
-
2015
- 2015-08-04 CN CN201520577491.6U patent/CN204852269U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989809A (en) * | 2015-08-04 | 2015-10-21 | 中国船舶重工集团公司第七�三研究所 | Elastically-installed reduction gear device of propulsion shafting of large ship |
| CN104989809B (en) * | 2015-08-04 | 2018-02-23 | 中国船舶重工集团公司第七�三研究所 | Large ship Propulsion Systems elasticity installation back gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151209 Effective date of abandoning: 20180223 |
|
| AV01 | Patent right actively abandoned |