CN113969807B - Oil distributing sleeve structure capable of balancing rotor in complete machine state - Google Patents
Oil distributing sleeve structure capable of balancing rotor in complete machine state Download PDFInfo
- Publication number
- CN113969807B CN113969807B CN202111192304.9A CN202111192304A CN113969807B CN 113969807 B CN113969807 B CN 113969807B CN 202111192304 A CN202111192304 A CN 202111192304A CN 113969807 B CN113969807 B CN 113969807B
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- sleeve
- rotor
- balancing
- oil
- balance
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- 230000000694 effects Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 45
- 238000000034 method Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/027—Arrangements for balancing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Balance (AREA)
Abstract
The application relates to the technical field of gas turbines, in particular to an oil distributing sleeve structure capable of balancing a rotor in a complete machine state, which is arranged corresponding to an oil supply nozzle and comprises a cylindrical sleeve, a center sleeve and a balancing piece; the central sleeve and the cylindrical sleeve are coaxially arranged, the central sleeve is positioned in the cylindrical sleeve, an annular boss is coaxially arranged at one end, close to the central sleeve, of the cylindrical sleeve, a first cavity for accommodating an oil supply nozzle is formed between the central sleeve and the cylindrical sleeve, and a second cavity is formed between the central sleeve and the annular boss; the side wall of annular boss has seted up the bolt hole, the bolt hole is shared multiunit and evenly arranges along the circumference interval of annular boss, in the bolt hole of different positions can be installed to second cavity, opposite side are located to balancing piece one side. The rotor balancing device has the technical effect of being capable of balancing the rotor more conveniently and efficiently.
Description
Technical Field
The application belongs to the technical field of gas turbines, and particularly relates to an oil distributing sleeve structure capable of balancing a rotor in a complete machine state.
Background
After the gas turbine is operated, the rotor unbalance amount after abrasion is increased due to the collision and abrasion between the rotor such as the comb teeth, the bushings and the like and the static parts, and particularly after the gas turbine is operated for a long time, the unbalance amount is increased to a certain extent, so that the vibration of the rotor and even the whole gas turbine is increased, the service life of the gas turbine is influenced, and the completion of tests and using tasks is influenced. At present, the problem of large vibration caused by the increase of unbalanced quantity of the rotor is solved by adopting a method of balancing the rotor again after the complete machine is disassembled in the lower stage.
At present, for the problem of large vibration caused by the increase of unbalanced quantity of a rotor, the method of decomposing the whole engine after the combustion engine is placed on the platform and re-balancing the rotor by removing part of materials on the rotor is adopted. The method not only greatly increases the task interruption and test run-in period, but also additionally increases the workload of reassembly and disassembly, and the accidental risk in the assembling and disassembling process, and simultaneously greatly increases the cost of labor, equipment loss, replacement of necessary parts, and the like, and even can cause the problem that the test before the lower stage is invalid.
Therefore, how to perform rotor balancing more effectively, reduce the risk of rotor balancing and cost is a problem to be solved.
Disclosure of Invention
The application aims to provide an oil separating sleeve structure capable of balancing a rotor in a complete machine state, so as to solve the problems of increased test period and increased risk caused by adopting a material removing mode to balance the rotor in the prior art.
The technical scheme of the application is as follows: an oil distributing sleeve structure capable of balancing a rotor in a complete machine state is arranged corresponding to an oil supply nozzle and comprises a cylindrical sleeve, a center sleeve and a balancing piece; the central sleeve and the cylindrical sleeve are coaxially arranged, the central sleeve is positioned in the cylindrical sleeve, an annular boss is coaxially arranged at one end, close to the central sleeve, of the cylindrical sleeve, a first cavity for accommodating an oil supply nozzle is formed between the central sleeve and the cylindrical sleeve, and a second cavity is formed between the central sleeve and the annular boss; the side wall of annular boss has seted up the bolt hole, the bolt hole is shared multiunit and evenly arranges along the circumference interval of annular boss, in the bolt hole of different positions can be installed to second cavity, opposite side are located to balancing piece one side.
Preferably, the balance piece comprises a balance weight, a balance bolt and a locking plate; the balance bolt is in threaded fit with the bolt hole, one side of the balance block is arranged between the head of the balance bolt and the bolt hole, the other side of the balance block is arranged in the second cavity, and the locking plate is arranged between the balance block and the balance bolt.
Preferably, the weight has a plurality of sets and at least two different sizes.
Preferably, a direction plate is arranged on the side wall of the locking plate, and the direction plate is arranged along the radial direction of the annular boss.
Preferably, one end of the center sleeve, which is close to the annular boss, is provided with an annular step surface, and the side wall of the balance weight abuts against the step surface.
Preferably, the number of bolt holes is 24.
Preferably, the cylinder sleeve is connected with a bearing and a runway, two groups of oil throwing holes are formed in the cylinder sleeve along the axial direction, the two groups of oil throwing holes are respectively communicated with the bearing and the runway, and a first oil outlet and a second oil outlet which are corresponding to the two groups of oil throwing holes are formed in the oil supply nozzle.
Preferably, the cylindrical sleeve is arranged corresponding to the rotor, a locking washer is arranged on the cylindrical sleeve, and a clamping ring matched with the rotor in a clamping way is arranged between the locking washer and the rotor.
According to the oil distributing sleeve structure capable of balancing the rotor in the whole machine state, the annular boss is added at one end of the cylindrical sleeve, which is close to the center sleeve, the annular boss is provided with the bolt hole, and the balancing piece is assembled in the bolt hole; when unbalance exists on the rotor, the unbalance is adjusted by measuring the unbalance, and then balancing pieces in different positions and sizes are assembled at different bolt hole positions, so that the unbalance is not required to be disassembled and assembled, the unbalance is not required to be adjusted by removing materials from the rotor, and the adjustment is convenient and stable.
Drawings
In order to more clearly illustrate the technical solution provided by the present application, the following description will briefly refer to the accompanying drawings. It will be apparent that the figures described below are merely some embodiments of the application.
FIG. 1 is a schematic cross-sectional view of the oil distributing sleeve, rotor and oil supply nozzle of the present application;
FIG. 2 is a schematic diagram of a cross-sectional structure of an oil separating sleeve according to the application;
Fig. 3 is a schematic diagram of a matching structure of the oil distributing sleeve and the balance piece.
1. A center sleeve; 2. a balance weight; 3. a balance bolt; 4. a locking plate; 5. a bearing; 6. a lock washer; 7. a collar; 8. a cylindrical sleeve; 9. a runway; 10. an oil supply nozzle; 11. an annular boss; 12. bolt holes; 13. an oil throwing hole; 14. a first oil outlet hole; 15. a second oil outlet hole; 16. a steering plate; 17. a step surface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application become more apparent, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application.
An oil distributing sleeve structure capable of balancing a rotor in a complete machine state is arranged in cooperation with an oil supply nozzle 10 and a rotor, wherein the oil supply nozzle 10 extends into the oil distributing sleeve, and the rotor and the oil distributing sleeve are coaxially arranged as shown in fig. 1-3. The application adjusts the unbalanced quantity of the rotor on the basis of not changing the rotor structure, and overcomes the prior technical prejudice, namely, the application can only operate on the rotor to adjust the balanced quantity of the rotor.
Comprises a cylinder sleeve 8, a center sleeve 1 and a balancing piece. The center sleeve 1 is of a hollow conical structure, the center sleeve 1 and the cylindrical sleeve 8 are coaxially arranged, the center sleeve 1 is located in the cylindrical sleeve 8, an annular boss 11 is coaxially arranged at one end, close to the center sleeve 1, of the cylindrical sleeve 8, a first cavity for accommodating the oil supply nozzle 10 is formed between the center sleeve 1 and the cylindrical sleeve 8, the oil supply nozzle is arranged in the first cavity, and a second cavity is formed between the center sleeve 1 and the annular boss 11.
Bolt holes 12 are formed in the side wall of the annular boss 11, the bolt holes 12 share multiple groups and are uniformly distributed along the circumferential direction of the annular boss 11 at intervals, one side of the balancing piece is arranged in the second cavity, and the other side of the balancing piece can be arranged in the bolt holes 12 at different positions.
When unbalance amount occurs to the rotor, balancing pieces are correspondingly added to the positions of the unbalance points at the bolt holes 12 on the other side of the axial position of the annular boss 11, the specific positions and the number of the balancing pieces are determined according to the size of the unbalance amount, and when the unbalance amount is large, the number of the used balancing pieces is large; otherwise, there are fewer. When the weight occupied by the balancing piece is the same as the unbalance, namely the balancing piece counteracts the unbalance of the rotor, the unbalance of the rotor can be adjusted.
Because the whole machine does not need to be decomposed, the method for increasing the unbalance amount is more convenient to use compared with the original method for reducing materials; when a new unbalance amount appears, a new balance can be established by adjusting the positions and the number of the balance pieces again, and the adjustment is convenient. Meanwhile, the problem of large rotor vibration caused by the increase of unbalance is solved, the problems of test/run-in interruption, prolonged period, increased workload and the like caused by the decomposition of the lower stage of the currently adopted combustion engine are avoided, the risks of unexpected problems in the processes of upper stage, lower stage and disassembly are avoided, and meanwhile, the cost generated in the processes of lower stage, upper stage and assembly and decomposition of the combustion engine is greatly reduced.
Preferably, the balance member includes a balance weight 2, a balance bolt 3 and a locking piece 4. The balance bolt 3 is in threaded fit with the bolt hole 12, one side of the balance weight 2 is arranged between the head of the balance bolt 3 and the bolt hole 12, the other side of the balance weight 2 is arranged in the second cavity, and the locking plate 4 is arranged between the balance weight 2 and the balance bolt 3.
Through realizing the fixed of balancing piece 2 and locking plate 4 with the cooperation of balancing bolt 3 and bolt hole 12, the main regulating action of balancing piece 2 play unbalance amount, and locking plate 4 plays the fine setting effect of unbalance amount, in the in-service use, through the position of rotatory locking plate 4 repeatedly, can guarantee the precision of balancing piece to unbalance amount regulation.
Preferably, the weight 2 has a plurality of types and at least two sizes different from each other. Through designing the balancing piece 2 of multiple different grade type, can form the balancing piece of multiple different weight, the regulation of cooperation locking plate 4 can realize that the unbalance volume that all different balancing pieces can offset can reach arbitrary value in a certain limit, that is no matter the unbalance volume of any size, the combination of corresponding balancing piece or balancing piece can all be found to can accurately adjust the unbalance volume of different grade type.
When the weight is small, the balance weight 2 is L-shaped; when the weight is great, through increasing corresponding protruding structure in the side that the balancing piece 2 kept away from center cover 1 to increase the whole weight of balancing piece 2, can not influence the assembly of balancing piece 2 simultaneously.
Preferably, the specific weight of the corresponding balance piece can be recorded on each different type of balance piece 2 in a marked mode so as to facilitate selection.
Preferably, the side wall of the locking plate 4 is provided with a direction plate 16, the direction plate 16 is arranged along the radial direction of the annular boss 11, and the angle of the locking plate 4 can be adjusted more conveniently by rotating the direction plate 16, so that the whole balance piece can be finely adjusted to the unbalance.
Preferably, one end of the center sleeve 1, which is close to the annular boss 11, is provided with an annular step surface 17, and the side wall of the balance weight 2 abuts against the step surface 17. Through offing balancing piece 2 and step face 17, cooperation balance bolt 3 can guarantee that balancing piece 2 obtains accurate spacing, can not rock.
Preferably, the number of bolt holes 12 is 24, but is not limited to 24, and may be increased or decreased according to specific requirements.
Preferably, the cylindrical sleeve 8 is connected with the bearing 5 and the runway 9, two groups of oil throwing holes 13 are formed in the cylindrical sleeve 8 along the axial direction, the two groups of oil throwing holes 13 are respectively communicated with the bearing 5 and the runway 9, and the oil supply nozzle 10 is provided with a first oil outlet 14 and a second oil outlet 15 corresponding to the two groups of oil throwing holes 13.
The lubricating oil sprayed by the oil supply nozzle 10 is sprayed out through the first oil outlet 14 and the second oil outlet 15, then is collected by the cylindrical sleeve 8, enters into the two oil throwing holes 13 under the action of centrifugal force, is radially thrown out through the oil throwing holes 13, and enters into the pumping and runway 9 for lubrication or cooling respectively, so that the effect of collecting and distributing the lubricating oil by the oil distributing sleeve is realized.
Preferably, the cylindrical sleeve 8 is arranged corresponding to the rotor, the cylindrical sleeve 8 is provided with a locking washer 6, and a clamping ring 7 matched with the rotor in a clamping way is arranged between the locking washer 6 and the rotor. The cylinder sleeve 8 is fixed by arranging the locking washer 6 on the cylinder sleeve 8, and the cylinder sleeve 8 is limited and clamped by arranging the clamping ring 7, so that the assembly precision of the whole oil distributing sleeve is ensured.
When the unbalance amount is regulated, after the cap cover and the speed measuring assembly are disassembled in the integral step state, the oil supply nozzle 10, the clamping ring 7 and the locking washer 6 are taken down, so that the oil distribution sleeve can be disassembled from the rotor, and the oil distribution sleeve is disassembled in the step state. After the oil separating sleeve is taken down, a certain unbalance amount of the balance blocks 2 is added at different angles for test analysis to determine the angle and the size of unbalance amount adjustment, and then the balance blocks 2 meeting the unbalance amount requirement are added at the corresponding angle positions, so that the adjustment of the unbalance amount of the rotor is realized.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present application should be included in the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (6)
1. Can carry out balanced branch oil jacket structure of rotor at complete machine state, correspond oil supply nozzle (10) setting, its characterized in that: comprises a cylinder sleeve (8), a center sleeve (1) and a balancing piece; the central sleeve (1) and the cylindrical sleeve (8) are coaxially arranged, the central sleeve (1) is positioned in the cylindrical sleeve (8), an annular boss (11) is coaxially arranged at one end, close to the central sleeve (1), of the cylindrical sleeve (8), a first cavity for accommodating the oil supply nozzle (10) is formed between the central sleeve (1) and the cylindrical sleeve (8), and a second cavity is formed between the central sleeve (1) and the annular boss (11);
The side wall of the annular boss (11) is provided with a plurality of groups of bolt holes (12), the bolt holes (12) are uniformly distributed at intervals along the circumferential direction of the annular boss (11), one side of the balancing piece is arranged in the second cavity, and the other side of the balancing piece can be arranged in the bolt holes (12) at different positions;
The balance piece comprises a balance block (2), a balance bolt (3) and a locking plate (4); the balance bolt (3) is in threaded fit with the bolt hole (12), one side of the balance weight (2) is arranged between the head of the balance bolt (3) and the bolt hole (12), the other side of the balance weight is arranged in the second cavity, and the locking plate (4) is arranged between the balance weight (2) and the balance bolt (3);
the side wall of the locking plate (4) is provided with a direction plate (16), and the direction plate (16) is arranged along the radial direction of the annular boss (11).
2. The oil distributing sleeve structure capable of balancing a rotor in a complete machine state as claimed in claim 1, wherein: the weight (2) has a plurality of groups and at least two different sizes.
3. The oil distributing sleeve structure capable of balancing a rotor in a complete machine state as claimed in claim 1, wherein: an annular step surface (17) is arranged at one end, close to the annular boss (11), of the center sleeve (1), and the side wall of the balance weight (2) abuts against the step surface (17).
4. The oil distributing sleeve structure capable of balancing a rotor in a complete machine state as claimed in claim 1, wherein: the number of the bolt holes (12) is 24.
5. The oil distributing sleeve structure capable of balancing a rotor in a complete machine state as claimed in claim 1, wherein: the oil supply nozzle is characterized in that the bearing (5) and the runway (9) are connected to the cylindrical sleeve (8), two groups of oil throwing holes (13) are formed in the cylindrical sleeve (8) along the axial direction, the two groups of oil throwing holes (13) are respectively communicated with the bearing (5) and the runway (9), and the oil supply nozzle (10) is provided with a first oil outlet (14) and a second oil outlet (15) which correspond to the two groups of oil throwing holes (13).
6. The oil distributing sleeve structure capable of balancing a rotor in a complete machine state as claimed in claim 1, wherein: the cylindrical sleeve (8) is arranged corresponding to the rotor, the cylindrical sleeve (8) is provided with a locking washer (6), and a clamping ring (7) matched with the rotor in a clamping way is arranged between the locking washer (6) and the rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111192304.9A CN113969807B (en) | 2021-10-13 | 2021-10-13 | Oil distributing sleeve structure capable of balancing rotor in complete machine state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111192304.9A CN113969807B (en) | 2021-10-13 | 2021-10-13 | Oil distributing sleeve structure capable of balancing rotor in complete machine state |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113969807A CN113969807A (en) | 2022-01-25 |
| CN113969807B true CN113969807B (en) | 2024-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111192304.9A Active CN113969807B (en) | 2021-10-13 | 2021-10-13 | Oil distributing sleeve structure capable of balancing rotor in complete machine state |
Country Status (1)
| Country | Link |
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| CN (1) | CN113969807B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081831A (en) * | 2020-09-15 | 2020-12-15 | 中国航发沈阳发动机研究所 | Bearing cooling structure |
| CN112324860A (en) * | 2020-11-03 | 2021-02-05 | 中国航发沈阳发动机研究所 | Engine complete machine balance structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2995036B1 (en) * | 2012-09-05 | 2014-09-05 | Snecma | BLOWER ROTOR, ESPECIALLY FOR A TURBOMACHINE |
| FR3001515B1 (en) * | 2013-01-25 | 2015-03-20 | Snecma | ASSEMBLY OF BALANCING MASSELOTTE TO A ROTOR ELEMENT |
| CN109159076A (en) * | 2018-09-17 | 2019-01-08 | 中国航发动力股份有限公司 | A kind of decomposer and method for fan propeller oil sealing set |
-
2021
- 2021-10-13 CN CN202111192304.9A patent/CN113969807B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081831A (en) * | 2020-09-15 | 2020-12-15 | 中国航发沈阳发动机研究所 | Bearing cooling structure |
| CN112324860A (en) * | 2020-11-03 | 2021-02-05 | 中国航发沈阳发动机研究所 | Engine complete machine balance structure |
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| Publication number | Publication date |
|---|---|
| CN113969807A (en) | 2022-01-25 |
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