CN205824178U - The bearing oil scraper ring of gas turbine - Google Patents
The bearing oil scraper ring of gas turbine Download PDFInfo
- Publication number
- CN205824178U CN205824178U CN201620586645.2U CN201620586645U CN205824178U CN 205824178 U CN205824178 U CN 205824178U CN 201620586645 U CN201620586645 U CN 201620586645U CN 205824178 U CN205824178 U CN 205824178U
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- CN
- China
- Prior art keywords
- oil
- scraper ring
- bearing
- oil scraper
- cannelure
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- 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.)
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Abstract
The utility model discloses the bearing oil scraper ring of a kind of gas turbine, including oil scraper ring, the front end face of oil scraper ring is gear pasta, and the gear pasta of oil scraper ring contacts with the rear end face of bearing shell；The inner ring of the front end face of oil scraper ring offers cannelure, the sidewall of cannelure offer multiple oil groove hole, oil groove hole and bearing shell watt between oil groove one_to_one corresponding；Oil groove between multiple watts of cannelure and bearing shell is connected by oil groove hole；The bottom of cannelure offers oil-recovery tank, and oil-recovery tank is connected with the spill port of bearing chamber.This utility model can make the equalization of pressure of bearing shell both sides, more conforms to the boundary condition that design bearing is analyzed with rotor dynamics, can facilitate again production and processing.
Description
Technical field
This utility model relates to the parts of a kind of gas turbine, is specifically related to the bearing oil scraper ring of a kind of gas turbine.
Background technology
The bearing chamber of gas turbine is fixedly installed；As it is shown in figure 1, be formed with gear pasta a, bearing on existing bearing chamber 1
Being provided with bearing shell 2 on room 1, the rear end of bearing shell 2 is provided with spring 3, props up spring 3 by sleeve 5, makes the front end face of bearing shell 2 support
On the gear pasta a of bearing chamber 1；Spill port 4 is offered in bearing chamber 1；A part of lubricating oil from left side through the cavity of bearing chamber 1
Entering gear-box oil return, another part lubricating oil introduces gear-box oil return from right side by spill port 4.
The bearing chamber of this structure, oil scraper ring and bearing chamber are integrated, and in gear pasta a bruting process, cutter can only be from a left side
Side enters, processing difficulties；On the other hand, owing to being more than right side on the left of the oil return of bearing, more than right side on the left of oil return gap, cause
Bearing shell pressure at both sides is uneven, has undesirable effect rotor stability.
Utility model content
Technical problem to be solved in the utility model is to provide the bearing oil scraper ring of a kind of gas turbine, and it can make axle
The equalization of pressure of watt both sides.
For solving above-mentioned technical problem, the technical solution of the bearing oil scraper ring of this utility model gas turbine is:
Including oil scraper ring 6, the front end face of oil scraper ring 6 is gear pasta a, the gear pasta a of oil scraper ring 6 and the rear end face of bearing shell 2
Contact；The inner ring of the front end face of oil scraper ring 6 offers cannelure 6-1, and the sidewall of cannelure 6-1 offers multiple oil groove hole 6-2,
Oil groove hole 6-2 and bearing shell 2 watt between oil groove 2-1 one_to_one corresponding；Oil groove hole 6-2 is by oil between multiple watts of cannelure 6-1 and bearing shell 2
Groove 2-1 is connected；The bottom of cannelure 6-1 offers oil-recovery tank 6-3, oil-recovery tank 6-3 and is connected with the spill port 4 of bearing chamber 1.
Described oil groove hole 6-2 has radial extension and axially-extending portion, the radial extension of oil groove hole 6-2 and cannelure
6-1 is connected, the axially-extending portion of oil groove hole 6-2 and bearing shell 2 watt between oil groove 2-1 be connected.
The internal diameter of described oil scraper ring 6 is less than the external diameter of axle 10, so that forming gap H1 between oil scraper ring 6 and axle 10.
Gap H1 between described oil scraper ring 6 and axle 10 is less than the gap H2 between sleeve 5 and axle 10.
The inner ring of the rear end face of described oil scraper ring 6 forms wedge shape chamfering.
Described oil scraper ring 6 realizes being connected with the axial restraint of bearing chamber 1 by bolt.
What this utility model can reach has the technical effect that
This utility model can make the equalization of pressure of bearing shell both sides, more conforms to design bearing and rotor dynamics analysis
Boundary condition, can facilitate again production and processing.
Accompanying drawing explanation
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings:
Fig. 1 is the schematic diagram of the bearing chamber of prior art gas turbine；
Fig. 2 is the scheme of installation on gas turbine of the bearing oil scraper ring of this utility model gas turbine；
Fig. 3 is schematic diagram of the present utility model.
Description of reference numerals in figure:
1 is bearing chamber, and 2 is bearing shell,
2-1 be watt between oil groove,
3 is spring, and 4 is spill port,
5 is sleeve, and 6 is oil scraper ring,
A is gear pasta, and 10 is axle,
6-1 is cannelure, and 6-2 is oil groove hole,
6-3 is oil-recovery tank.
Detailed description of the invention
As shown in Figure 2 and Figure 3, the bearing oil scraper ring of this utility model gas turbine, including oil scraper ring 6, oil scraper ring 6 passes through
Bolt realizes being connected with the axial restraint of bearing chamber 1；
The internal diameter of oil scraper ring 6 is less than the external diameter of axle 10, so that forming gap H1 between oil scraper ring 6 and axle 10；This gap H1
Less than the gap H2 between sleeve 5 and axle 10；
The front end face of oil scraper ring 6 contacts with the rear end face of bearing shell 2 for gear pasta a, the gear pasta a of oil scraper ring 6；
The inner ring of the front end face of oil scraper ring 6 offers cannelure 6-1, and the sidewall of cannelure 6-1 offers multiple oil groove hole
6-2, oil groove hole 6-2 and bearing shell 2 watt between oil groove 2-1 one_to_one corresponding；Oil groove hole 6-2 is by multiple watts of cannelure 6-1 and bearing shell 2
Between oil groove 2-1 be connected；
Oil groove hole 6-2 has radial extension and axially-extending portion, the radial extension of oil groove hole 6-2 and cannelure 6-1
Be connected, the axially-extending portion of oil groove hole 6-2 and bearing shell 2 watt between oil groove 2-1 be connected；
The bottom of cannelure 6-1 offers oil-recovery tank 6-3, oil-recovery tank 6-3 and is connected with the spill port 4 of bearing chamber 1；
The inner ring of the rear end face of oil scraper ring 6 forms wedge shape chamfering, to avoid oil return to enter right chamber.
Operation principle of the present utility model is as follows:
After lubricating oil enters the cannelure 6-1 on the right side of bearing shell 2, through multiple oil groove hole 6-2 separately flow into bearing shell 2 watt between oil
Groove 2-1, lubricating oil flows vertically, and arrives the left side of bearing shell 2, thus realizes the pressure balance of bearing shell 2 left and right sides；
A small amount of lubricating oil oil-recovery tank 6-3 bottom cannelure 6-1 flows into the spill port 4 of bearing chamber 1, and last oil return is to tooth
Roller box.
Gap H1 between this utility model oil scraper ring 6 and axle 10 is less than the gap H2 between sleeve 5 and axle 10 so that axle
The oil return gap, left side of watts 2 is more than oil return gap, right side, i.e. near the oil return gap of oil back chamber side more than away from oil back chamber one
The oil return gap of side, it is possible to make bearing shell major part oil return return gear-box from bearing left chamber.
This utility model can be easy to keep off the polishing processing of pasta a.
This utility model is applicable to the oil return of gas turbine intermediate bushing side and seals.
Claims (6)
1. the bearing oil scraper ring of a gas turbine, it is characterised in that: including oil scraper ring (6), the front end face of oil scraper ring (6) is gear
Pasta (a), gear pasta (a) of oil scraper ring (6) contacts with the rear end face of bearing shell (2)；
The inner ring of the front end face of oil scraper ring (6) offers cannelure (6-1), and the sidewall of cannelure (6-1) offers multiple oil groove
Hole (6-2), oil groove hole (6-2) and bearing shell (2) watt between oil groove (2-1) one_to_one corresponding；Oil groove hole (6-2) is by cannelure (6-1)
It is connected with oil groove (2-1) between multiple watts of bearing shell (2)；
The bottom of cannelure (6-1) offers oil-recovery tank (6-3), and oil-recovery tank (6-3) is connected with the spill port (4) of bearing chamber (1)
Logical.
The bearing oil scraper ring of gas turbine the most according to claim 1, it is characterised in that: described oil groove hole (6-2) has
Radial extension and axially-extending portion, the radial extension of oil groove hole (6-2) is connected with cannelure (6-1), oil groove hole (6-2)
Axially-extending portion and bearing shell (2) watt between oil groove (2-1) be connected.
The bearing oil scraper ring of gas turbine the most according to claim 1, it is characterised in that: the internal diameter of described oil scraper ring (6)
Less than the external diameter of axle (10), so that forming gap H1 between oil scraper ring (6) and axle (10).
The bearing oil scraper ring of gas turbine the most according to claim 3, it is characterised in that: described oil scraper ring (6) and axle
(10) the gap H1 between is less than the gap H2 between sleeve (5) and axle (10).
The bearing oil scraper ring of gas turbine the most according to claim 1, it is characterised in that: the rear end of described oil scraper ring (6)
The inner ring in face forms wedge shape chamfering.
The bearing oil scraper ring of gas turbine the most according to claim 1, it is characterised in that: described oil scraper ring (6) passes through spiral shell
Bolt realizes being connected with the axial restraint of bearing chamber (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620586645.2U CN205824178U (en) | 2016-06-16 | 2016-06-16 | The bearing oil scraper ring of gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620586645.2U CN205824178U (en) | 2016-06-16 | 2016-06-16 | The bearing oil scraper ring of gas turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205824178U true CN205824178U (en) | 2016-12-21 |
Family
ID=57568326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620586645.2U Active CN205824178U (en) | 2016-06-16 | 2016-06-16 | The bearing oil scraper ring of gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205824178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159762A (en) * | 2019-04-25 | 2019-08-23 | 沈阳透平机械股份有限公司 | A kind of high speed balancing machine sealing structure |
-
2016
- 2016-06-16 CN CN201620586645.2U patent/CN205824178U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159762A (en) * | 2019-04-25 | 2019-08-23 | 沈阳透平机械股份有限公司 | A kind of high speed balancing machine sealing structure |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |