CN202851677U - Internal circulating oil supply device of thrust radial bearing of water turbine - Google Patents
Internal circulating oil supply device of thrust radial bearing of water turbine Download PDFInfo
- Publication number
- CN202851677U CN202851677U CN 201220507884 CN201220507884U CN202851677U CN 202851677 U CN202851677 U CN 202851677U CN 201220507884 CN201220507884 CN 201220507884 CN 201220507884 U CN201220507884 U CN 201220507884U CN 202851677 U CN202851677 U CN 202851677U
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- oil
- bearing
- thrust
- fuel tank
- inlet pipe
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Abstract
The utility model relates to an internal circulating oil supply device of a thrust radial bearing of a water turbine. The thrust radial bearing is provided with a bearing bush, a runner plate and a thrust pad according to the order from front to back. The internal circulating oil supply device is characterized in that the thrust pad is supported by an antigravity bolt; the antigravity bolt is fixed on a bearing block A of a frame; the bearing bush is supported by a bearing block B fixed on the frame; an oil cover A is arranged between the bearing block A and the bearing block B; an oil cavity A is formed between the oil cover and the bearing bush, the runner plate and the thrust pad; furthermore, an oil inlet hole is arranged on the bearing bush; an oil tank is arranged at the lower part of the thrust radial bearing; an oil inlet pipe is arranged between the oil tank and the runner plate; a concave oil suction groove is arranged at the edge of the runner plate; the oil suction groove is communicated with the upper end of the oil inlet pipe; and the lower end of the oil inlet pipe extends into the oil tank and contacts lubricating oil in the oil tank. The internal circulating oil supply device directly absorbs oil from the oil tank inside the machine body to lubricate and cool the bearing by the effect of rotating a pump impeller of the runner plate, so as to achieve internal circulating oil supply.
Description
Technical field
The utility model relates to a kind of hydraulic turbine generator, circulating oil supply device in especially a kind of water turbine thrust.
Background technique
In the hydraulic generator unit, be positioned at the thrust of bulb, should bear more than ten ton the radial force that rotor and main shaft weight cause, bear again tens tons of axial hydraulic thrusts of runner, be the critical component of generator set.Conventional thrust tradition adopts the outer circulation fuel system, needs to be equipped with expensive oil-servicing facilities and complicated oil pipe line, and has leakage of oil hidden danger.
Summary of the invention
The utility model arranges the shortcoming that costliness, oil circuit are complicated, leakage of oil hidden danger is arranged mainly for outer circulation fuel system in the prior art, invented circulating oil supply device in a kind of water turbine thrust, utilize the pump impeller effect of rotation runner plate, direct oil suction has realized interior circulation fuel system with the lubrication and cooling bearing the fuel tank in body.
Above-mentioned technical problem of the present invention is implemented by the following technical programs: circulating oil supply device in a kind of water turbine thrust, thrust sequentially arranges bearing shell according to front and back, runner plate, thrust bearing shoe valve, the front end of described bearing shell arranges end cap, it is characterized in that, described thrust bearing shoe valve is by anti-heavy bolt bearing, on the anti-heavy bearing support A that is bolted to frame, described bearing shell is by the bearing support B supporting of being fixed in frame, oil cover A is set between bearing support A and the bearing support B, oil cover and bearing shell, runner plate, form oil pocket A between the thrust bearing shoe valve, and, be provided with oil inlet hole on the bearing shell, the bottom of thrust is provided with fuel tank, be provided with oil inlet pipe between fuel tank and the runner plate, the edge of runner plate is provided with the oil suction groove of indent, and the oil suction groove is communicated with the upper end of oil inlet pipe, the lower end of oil inlet pipe is stretched in the fuel tank, contacts with lubricant oil in being stored in fuel tank.
As preferably, described end cap ring set keeps the space at the front end of bearing shell between bearing shell front end and the end cap, as the flow channel of lubricant oil, and circulation in realizing.
As preferably, the rear of described thrust is provided with guide bearing, the guide bearing guide bearing comprises the collar and the guide bearing block of ring set on main shaft, surrounds the oil cover B of the collar and guide bearing block, and formation oil pocket B between oil cover B and the collar, the guide bearing block is provided with oil through on the guide bearing block; Described guide bearing block is by the bearing support C supporting of being fixed in frame.Oil cover B provides the space of sealing for the interior circulation of lubricant oil.
As preferably, described collar below is provided with fuel tank, is connected oil inlet pipe between fuel tank and the collar, the edge of the collar is provided with the oil suction groove of indent, the oil suction groove is communicated with the upper end of oil inlet pipe, and the lower end of oil inlet pipe is stretched in the fuel tank, contacts with lubricant oil in being stored in fuel tank.The collar of rotation has the pump impeller effect, the lubricant oil sucking-off in the fuel tank of below can be temporarily stored in the oil suction groove, and along with collar rotation, lubricant oil gets rid of in the oil cover B.
In sum, the present invention compared with prior art has following advantage:
The utility model has improved the structure of thrust, the difficult problems such as the stressed supporting of thrust bearing shoe valve have been solved, utilize the pump impeller effect of rotation runner plate, direct oil suction is with the lubrication and cooling bearing from the fuel tank of bearing bottom, realized interior circulation fuel system, not only avoid oil leaking pollution but also saved the electric power of outer circulation, reached the purpose of clean and effective.
Description of drawings
Fig. 1 is the structural representation of the utility model thrust.
Fig. 2 is the structural representation of the utility model guide bearing.
Number in the figure is: 1, main shaft; 10, end cap; 11, bearing shell; 12, runner plate; 13, thrust bearing shoe valve; 14, anti-heavy bolt; 15, bearing support A; 16, bearing support B; 17, oil cover A; 18, oil pocket A; 19, oil inlet hole; 2, fuel tank; 20, oil inlet pipe; 21, oil suction groove; 30, the collar; 31, guide bearing block; 32, oil cover B; 33, oil pocket B; 34, bearing support C.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
Embodiment 1.
As shown in Figure 1, circulating oil supply device in the water turbine thrust, in the bulb of water turbine, be connected with thrust, guide bearing 2 on the main shaft, wherein, thrust, the bearing shell 11, runner plate 12, the thrust bearing shoe valve 13 that are looped around successively on the main shaft 1 by front and back consist of, it is evenly distributed that the fan-shaped thrust bearing shoe valve 13 of 6-8 piece centers on main shaft, and thrust bearing shoe valve 13 is by anti-heavy bolt 14 supportings of being fixed in bearing support A15, and bearing support A15 is fixed in frame; Described anti-heavy bolt 14 vertically is screwed into the screw shell on the bearing support A15, adjusts the height of anti-heavy bolt 14, and thrust bearing shoe valve 13 is maintained at the same horizontal plane, and thrust bearing shoe valve 13 is stressed even.
The front end of described bearing shell 11 connects end cap 10, and the inboard of end cap 10 is provided with flinger ring, stops that lubricant oil leaks outside, and keeps the space between bearing shell 11 front ends and the end cap 10.Bearing shell 11 is by the bearing support B16 supporting of being fixed in frame, fixing oil cover A17 between bearing support A15 and the bearing support B16, form oil pocket A18 between oil cover A17 and bearing shell 11, runner plate 12, the thrust bearing shoe valve 13, and, be provided with oil inlet hole 19 on the bearing shell 11, oil inlet hole 19 penetrates bearing shell 11, extends to the inner from bearing shell 1 outer end.
The bottom of thrust is fixed with fuel tank 2, be connected a vertical oil inlet pipe 20 between fuel tank 2 and the runner plate 12, there is the oil suction groove 21 of indent at the edge of runner plate 12, oil suction groove 21 is communicated with the upper end of oil inlet pipe 20, the lower end of oil inlet pipe 20 is stretched in the fuel tank 2, contacts with lubricant oil in being stored in fuel tank 2.
Described guide bearing is positioned at the thrust rear, as shown in Figure 2, guide bearing comprises the circular collar 30 of ring set on main shaft 1, the collar 30 and main shaft 1 synchronous rotary, also comprise guide bearing block 31, surround the oil cover B32 of the collar 30 and guide bearing block 31, formation oil pocket B33 between oil cover B32 and the collar 30, the guide bearing block 31; Described guide bearing block 31 is provided with two oil throughs 35 of one-in-and-one-out by the bearing support C34 supporting of being fixed in frame on the guide bearing block 31, oil through 35 penetrates guide bearing block 31, extends to the inner from guide bearing block 31 outer ends.
The described collar 30 belows are fixed with fuel tank 2, are connected oil inlet pipe 20 between fuel tank 2 and the collar 30, and the edge of the collar 30 has the oil suction groove 21 of indent to be communicated with the upper end of oil inlet pipe 20, and the lower end of oil inlet pipe 20 is stretched in the fuel tank 2, contact with lubricant oil in being stored in fuel tank.
When hydraulic turbine generator normally moved, the runner plate of rotation, the collar of rotation can with the lubricant oil sucking-off in the fuel tank, be temporarily stored in the oil suction groove, through rotation, lubricant oil in the oil suction groove gets rid of in the oil cover, and lubricant oil flows in oil pocket, in the space of all parts, is lubricated and cools off.
The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (4)
1. circulating oil supply device in the water turbine thrust, thrust sequentially arranges bearing shell (11) according to front and back, runner plate (12), thrust bearing shoe valve (13), the front end of described bearing shell arranges end cap (10), it is characterized in that, described thrust bearing shoe valve is supported by anti-heavy bolt (14), the anti-heavy bearing support A(15 that is bolted to frame) on, described bearing shell is by the bearing support B(16 that is fixed in frame) supporting, oil cover A(17 is set) between bearing support A and the bearing support B, oil cover and bearing shell, runner plate, form oil pocket A(18 between the thrust bearing shoe valve), and, be provided with oil inlet hole (19) on the bearing shell;
The bottom of thrust is provided with fuel tank (2), be provided with oil inlet pipe (20) between fuel tank and the runner plate, the edge of runner plate is provided with the oil suction groove (21) of indent, and the oil suction groove is communicated with the upper end of oil inlet pipe, the lower end of oil inlet pipe is stretched in the fuel tank, contacts with lubricant oil in being stored in fuel tank.
2. circulating oil supply device in the water turbine thrust according to claim 1 is characterized in that described end cap ring set keeps the space at the front end of bearing shell between bearing shell front end and the end cap.
3. circulating oil supply device in the water turbine thrust according to claim 1 and 2, it is characterized in that, the rear of described thrust is provided with guide bearing, the guide bearing guide bearing comprises the collar (30) and the guide bearing block (31) of ring set on main shaft (1), surrounds the oil cover B(32 of the collar and guide bearing block), form oil pocket B(33 between oil cover B and the collar, the guide bearing block), oil through (35) is set on the guide bearing block; Described guide bearing block is by the bearing support C(34 that is fixed in frame) supporting.
4. circulating oil supply device in the water turbine thrust according to claim 3, it is characterized in that, described collar below is provided with fuel tank, be connected oil inlet pipe between fuel tank and the collar, the edge of the collar is provided with the oil suction groove of indent, the oil suction groove is communicated with the upper end of oil inlet pipe, and the lower end of oil inlet pipe is stretched in the fuel tank, contacts with lubricant oil in being stored in fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220507884 CN202851677U (en) | 2012-09-27 | 2012-09-27 | Internal circulating oil supply device of thrust radial bearing of water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220507884 CN202851677U (en) | 2012-09-27 | 2012-09-27 | Internal circulating oil supply device of thrust radial bearing of water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851677U true CN202851677U (en) | 2013-04-03 |
Family
ID=47982883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220507884 Expired - Lifetime CN202851677U (en) | 2012-09-27 | 2012-09-27 | Internal circulating oil supply device of thrust radial bearing of water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851677U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711800A (en) * | 2014-01-20 | 2014-04-09 | 东方电气集团东方电机有限公司 | Oil removal method and oil removal device for liquid dynamic pressure thrust bearing |
| CN104963956A (en) * | 2015-07-10 | 2015-10-07 | 哈尔滨电气动力装备有限公司 | Water-free self-cooling pilot bearing |
| CN112855409A (en) * | 2021-01-15 | 2021-05-28 | 石筠 | Device for preventing oil-gas mixture at shaft seam of horizontal unit of hydropower station from climbing outside |
-
2012
- 2012-09-27 CN CN 201220507884 patent/CN202851677U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711800A (en) * | 2014-01-20 | 2014-04-09 | 东方电气集团东方电机有限公司 | Oil removal method and oil removal device for liquid dynamic pressure thrust bearing |
| CN103711800B (en) * | 2014-01-20 | 2016-08-17 | 东方电气集团东方电机有限公司 | A kind of oil removal method of Hydrodynamic thrust bearing and oil-isolating device |
| CN104963956A (en) * | 2015-07-10 | 2015-10-07 | 哈尔滨电气动力装备有限公司 | Water-free self-cooling pilot bearing |
| CN104963956B (en) * | 2015-07-10 | 2017-07-14 | 哈尔滨电气动力装备有限公司 | Anhydrous cooling guide bearing certainly |
| CN112855409A (en) * | 2021-01-15 | 2021-05-28 | 石筠 | Device for preventing oil-gas mixture at shaft seam of horizontal unit of hydropower station from climbing outside |
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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: 20130403 |
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| CX01 | Expiry of patent term |