CN201007336Y - High speed reducing gear box for steam turbine power generation - Google Patents
High speed reducing gear box for steam turbine power generation Download PDFInfo
- Publication number
- CN201007336Y CN201007336Y CNU2006201652978U CN200620165297U CN201007336Y CN 201007336 Y CN201007336 Y CN 201007336Y CN U2006201652978 U CNU2006201652978 U CN U2006201652978U CN 200620165297 U CN200620165297 U CN 200620165297U CN 201007336 Y CN201007336 Y CN 201007336Y
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- China
- Prior art keywords
- shaft
- bearing
- speed
- steam turbine
- tooth flange
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Gear Transmission (AREA)
Abstract
The utility model relates to a high-speed reduction gear box used by the steam turbine to generate, wherein a box body is composed of an upper box body, a middle box body and a lower box body which are connected through bolts; an input shaft fixed through a bearing is arranged inside the upper box body; the input shaft is sleeved with a high-speed small gear shaft; the inner end socket of the input shaft is provided with an inner tooth flange connected through a spline; the high-speed small gear shaft and the inner tooth flange are fixed through the bolt; an output shaft is sleeved with a low-speed large gear shaft; the inner end socket of the output shaft is equipped with an inner tooth flange connected through a spline; an output shaft fixed through the bearing is disposed in the lower box body; the low-speed large gear shaft and the inner tooth flange are fixed through the bolt; the output shaft is provided with a low-speed large gear shaft; and a high-speed small gear is usually meshed with a low-speed large gear. The utility model provides a high-speed reduction gear box used by the steam turbine to generate which is directly driven through the high-speed small gear shaft and the low-speed large gear shaft. Moreover, the utility model has compact structure, high stability, convenient assembling as a whole, and safe and reliable operation, and the input end and the output end are all provided with sealing devices, thereby effectively avoiding the oil leakage problem.
Description
Technical field
The utility model relates to a kind of steam turbine power generation high-speed reduction gears case.
Background technique
In recent years along with China's rapid development of economy, being greatly improved of industrialized level.Yet the consumption to the energy especially electric power energy increasingly sharpens, and the energy has become the bottleneck of restriction China economic development gradually.Powerful combustion gas (oil) steam turbine of generating usefulness is rapidly developed, and this is to transmission device---and the gear-box retarder is had higher requirement.Combustion gas (oil) steam turbine load gear-box is the product that China introduces in the nineties from offshore company, be that China introduces prominent gear-box in the high-speed gear unit, because technical requirement height, difficulty of processing is big, lower velocity shaft block bearing journal velocity reaches about 48.7m/s, and the sliding bearing specific pressure reaches 3.89N/mm
2Succeeding in developing of combustion gas (oil) steam turbine load gear-box has crucial meaning to China's combustion gas (oil) steam turbine power generation.Thereby break away from the situation of steam turbine power generation with high-speed reduction gears case dependence on import.
Summary of the invention
The purpose of this utility model is: a kind of steam turbine power generation high-speed reduction gears case is provided, by high speed pinion shaft and the direct transmission of low speed Large Gear Shaft During, compact structure, stability is high, overall installation is convenient, safe and reliable to operation, input end and output terminal all have seal arrangement, have avoided the leakage of oil problem effectively.
The technical solution of the utility model is achieved in that a kind of steam turbine power generation high-speed reduction gears case, includes casing, input shaft, output shaft, high speed small gear and low speed gearwheel, it is characterized in that:
A) described casing comprises by upper box and lower box by Bolt Connection;
B) input shaft by bearing fixing is installed in the upper box, is with the high speed pinion shaft on the input shaft, the input shaft inner termination is provided with the internal tooth flange by splined, and high speed pinion shaft and internal tooth flange pass through bolt;
C) output shaft by bearing fixing is installed in the lower box, is with the low speed Large Gear Shaft During on the output shaft, the output shaft inner termination is provided with the internal tooth flange by splined, and low speed Large Gear Shaft During and internal tooth flange pass through bolt;
D) high speed pinion shaft and low speed Large Gear Shaft During often mesh;
E) joint of the output terminal of the joint of the input end of input shaft and upper box and output shaft and lower box is equipped with seal arrangement.
In the utility model, the axis of described input shaft and the axis of output shaft are positioned at same vertical plane.
In the utility model, flinger ring, labyrinth seal and negative pressure barge board that described seal arrangement is installed successively by the bearing outside are formed.
This reality have novel in, described high speed pinion shaft and low speed Large Gear Shaft During are that herringbone tooth often meshes.
In the utility model, the input end bearing of described input shaft is four oil film wedge sliding bearings, and the bearing of the bearing of high speed pinion shaft and internal tooth flange joining end and low speed Large Gear Shaft During and internal tooth flange joining end is dislocation watt sliding bearing.
In the utility model, the bearing of described high speed pinion shaft and internal tooth flange joining end is adjustable anchor plate sliding bearing.
The utility model has the advantages that: casing is made up of upper box and lower box by Bolt Connection, makes things convenient for the Assembly And Disassembly of gear-box, and the input end bearing of input shaft is four oil film wedge sliding bearings, for the input shaft that rotating speed is set, use this bearing, supporting is stable, and axle easily floats; The bearing of the bearing of high speed pinion shaft and internal tooth flange joining end and low speed Large Gear Shaft During and internal tooth flange joining end is dislocation watt sliding bearing, axle journal for heavy load like this and linear speed, dislocation watt bearing capacity is better, stability is higher, the bearing of its high speed pinion shaft and internal tooth flange joining end is adjustable anchor plate sliding bearing, remedy the error that casing processing brings by adjusting adjustable anchor plate sliding bearing, improve the gear meshing situation simultaneously, the input end of input shaft and the output terminal of output shaft all are equipped with seal arrangement, have avoided the leakage of oil problem effectively.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model seal arrangement.
Among the figure: 1 upper box; 2 lower boxes; 3 bearings; 4 input shafts; 5 high speed pinion shafts; 6 internal tooth flanges; 7 bearings; 8 output shafts; 9 low speed Large Gear Shaft During; 10 internal tooth flanges; 11 seal arrangements; 12 flinger rings; 13 labyrinth seals; 14 negative pressure barge boards.
Embodiment
Accompanying drawing is non-limiting to disclose a specific embodiment of the present utility model, and the utility model will be further described below in conjunction with accompanying drawing.
Embodiment: as shown in Figure 1, a kind of steam turbine power generation high-speed reduction gears case, this gear-box includes upper box 1 and the lower box 2 that is connected and fixed by bolt, the input shaft of fixing by bearing 34 is installed in the upper box 1, the input shaft 4 outer high speed pinion shafts 5 that are with, input shaft 4 the inners are provided with the internal tooth flange 6 by splined, high speed pinion shaft 5 and internal tooth flange 6 are connected and fixed by bolt, the input end bearing 3 four oil film wedge sliding bearings of input shaft 4, high speed pinion shaft 5 is an adjusting type anchor plate sliding bearing with internal tooth flange 6 joint bearings 3, be equipped with in the lower box 2 by bearing 7 stationary output shaft 8, the output shaft 8 outer low speed Large Gear Shaft During 9 that are with, output shaft 8 the inners are provided with the internal tooth flange 10 by splined, low speed gearwheel 9 and internal tooth flange 10 are connected and fixed by bolt, low speed gearwheel 9 is the dislocation sliding bearing with internal tooth flange 10 joint bearings 7, high speed pinion shaft 5 and low speed Large Gear Shaft During 9 often mesh vertical parallel about the axis of the axis of input shaft 4 and output shaft 8 for herringbone tooth.
As shown in Figure 2, the four oil film wedge sliding bearings 3 and dislocation sliding bearing 7 outsides are equipped with flinger ring 12, labyrinth seal 13 and negative pressure barge board 14 successively, and labyrinth seal 13 places are provided with intake grill, and air-flow is by entering in the middle of the labyrinth seal 13, and both sides go out.
Claims (6)
1. a steam turbine power generation high-speed reduction gears case includes casing, input shaft, output shaft, high speed small gear and low speed gearwheel, it is characterized in that:
A) described casing comprises by upper box and lower box by Bolt Connection;
B) input shaft by bearing fixing is installed in the upper box, is with the high speed pinion shaft on the input shaft, the input shaft inner termination is provided with the internal tooth flange by splined, and high speed pinion shaft and internal tooth flange pass through bolt;
C) output shaft by bearing fixing is installed in the lower box, is with the low speed Large Gear Shaft During on the output shaft, the output shaft inner termination is provided with the internal tooth flange by splined, and low speed Large Gear Shaft During and internal tooth flange pass through bolt;
D) high speed pinion shaft and low speed Large Gear Shaft During often mesh;
E) joint of the output terminal of the joint of the input end of input shaft and upper box and output shaft and lower box is equipped with seal arrangement.
2. steam turbine power generation high-speed reduction gears case according to claim 1 is characterized in that: the axis of described input shaft and the axis of output shaft are positioned at same vertical plane.
3. steam turbine power generation high-speed reduction gears case according to claim 1 and 2 is characterized in that: flinger ring, labyrinth seal and negative pressure barge board that described seal arrangement is installed successively by the bearing outside are formed.
4. steam turbine power generation high-speed reduction gears case according to claim 3 is characterized in that: described high speed pinion shaft and low speed Large Gear Shaft During are herringbone tooth.
5. steam turbine power generation high-speed reduction gears case according to claim 4, it is characterized in that: the input end bearing of described input shaft is four oil film wedge sliding bearings, and the bearing of the bearing of high speed pinion shaft and internal tooth flange joining end and low speed Large Gear Shaft During and internal tooth flange joining end is dislocation watt sliding bearing.
6. steam turbine power generation high-speed reduction gears case according to claim 5 is characterized in that: the bearing of described high speed pinion shaft and internal tooth flange joining end is adjustable anchor plate sliding bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201652978U CN201007336Y (en) | 2006-12-25 | 2006-12-25 | High speed reducing gear box for steam turbine power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201652978U CN201007336Y (en) | 2006-12-25 | 2006-12-25 | High speed reducing gear box for steam turbine power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201007336Y true CN201007336Y (en) | 2008-01-16 |
Family
ID=39003283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201652978U Expired - Lifetime CN201007336Y (en) | 2006-12-25 | 2006-12-25 | High speed reducing gear box for steam turbine power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201007336Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588564A (en) * | 2011-12-02 | 2012-07-18 | 资阳南车传动有限公司 | Manual-shift speed reducer of crowned-gear clutch for large-size petroleum drilling machines |
| CN102619961A (en) * | 2012-03-12 | 2012-08-01 | 江苏金通灵流体机械科技股份有限公司 | Double-input high-speed gear transmission box used for steam turbine |
| CN105626838A (en) * | 2016-03-03 | 2016-06-01 | 中国科学院工程热物理研究所 | Axis height adjustable gear box supporting structure |
| CN107152519A (en) * | 2017-07-06 | 2017-09-12 | 中国船舶重工集团公司第七�三研究所 | A kind of transmission device double-mechanical sealing combining structure |
-
2006
- 2006-12-25 CN CNU2006201652978U patent/CN201007336Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588564A (en) * | 2011-12-02 | 2012-07-18 | 资阳南车传动有限公司 | Manual-shift speed reducer of crowned-gear clutch for large-size petroleum drilling machines |
| CN102588564B (en) * | 2011-12-02 | 2014-10-22 | 资阳南车传动有限公司 | Manual-shift speed reducer of crowned-gear clutch for large-size petroleum drilling machines |
| CN102619961A (en) * | 2012-03-12 | 2012-08-01 | 江苏金通灵流体机械科技股份有限公司 | Double-input high-speed gear transmission box used for steam turbine |
| CN105626838A (en) * | 2016-03-03 | 2016-06-01 | 中国科学院工程热物理研究所 | Axis height adjustable gear box supporting structure |
| CN105626838B (en) * | 2016-03-03 | 2017-11-14 | 中国科学院工程热物理研究所 | A kind of adjustable for height gearbox support structure in axle center |
| CN107152519A (en) * | 2017-07-06 | 2017-09-12 | 中国船舶重工集团公司第七�三研究所 | A kind of transmission device double-mechanical sealing combining structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080116 |
|
| EXPY | Termination of patent right or utility model |