CN113969807A - Oil distribution sleeve structure capable of balancing rotor in complete machine state - Google Patents
Oil distribution sleeve structure capable of balancing rotor in complete machine state Download PDFInfo
- Publication number
- CN113969807A CN113969807A CN202111192304.9A CN202111192304A CN113969807A CN 113969807 A CN113969807 A CN 113969807A CN 202111192304 A CN202111192304 A CN 202111192304A CN 113969807 A CN113969807 A CN 113969807A
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- sleeve
- rotor
- balance
- oil
- balancing
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- 239000000446 fuel Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 45
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 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
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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
Abstract
The application relates to the technical field of gas turbines, in particular to an oil distribution 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 central sleeve and a balancing piece; the central sleeve and the cylindrical sleeve are coaxially arranged, the central sleeve is positioned in the cylindrical sleeve, one end of the cylindrical sleeve, which is close to the central sleeve, is coaxially provided with an annular boss, 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 the annular boss is provided with a plurality of groups of bolt holes which are uniformly distributed along the circumferential direction of the annular boss at intervals, one side of the balance piece is arranged in the second cavity, and the other side of the balance piece can be arranged in the bolt holes at different positions. The rotor balancing device has the technical effect of conveniently and efficiently balancing the rotor.
Description
Technical Field
The application belongs to the technical field of gas turbines, and particularly relates to an oil distribution sleeve structure capable of balancing a rotor in a complete machine state.
Background
After the gas turbine runs, the rotor unbalance after abrasion is increased due to the fact that the rotor and the static parts such as the grate, the bushing and the like are in collision and abrasion, particularly after the gas turbine runs for a long time, the unbalance is large to a certain degree, vibration of the rotor and even the whole machine is increased, the service life of the gas turbine is influenced, and the test and the completion of the use task are influenced. At present, the problem of large vibration caused by the increase of the unbalance amount of the rotor is solved by adopting a method of balancing the rotor again after the lower platform of the whole machine is decomposed.
At present, the problem of large vibration caused by the increase of the unbalance amount of the rotor is solved by adopting a method that the whole machine is disassembled after the combustion engine is placed, and the rotor is balanced again by removing partial materials on the rotor. The method not only causes task interruption and greatly increases the test run period, but also additionally increases workload due to reassembly and disassembly, causes unexpected risks in the assembly and disassembly process, greatly increases the cost of labor, equipment loss, replacement and the like, and even can cause the problems of ineffective test before the next test.
Therefore, how to more effectively perform rotor balancing, and reduce the risk and cost of rotor balancing is a problem to be solved.
Disclosure of Invention
The utility model aims at providing a can carry out balanced branch oil jacket structure of rotor at complete machine state to adopt among the solution prior art to get rid of the mode of material and carry out the balanced problem that experimental cycle increases, the risk increases that leads to of rotor.
The technical scheme of the application is as follows: an oil distribution 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 central sleeve and a balancing piece; the central sleeve and the cylindrical sleeve are coaxially arranged, the central sleeve is positioned in the cylindrical sleeve, one end of the cylindrical sleeve, which is close to the central sleeve, is coaxially provided with an annular boss, 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 the annular boss is provided with a plurality of groups of bolt holes which are uniformly distributed along the circumferential direction of the annular boss at intervals, one side of the balance piece is arranged in the second cavity, and the other side of the balance piece can be arranged in the bolt holes at different positions.
Preferably, the balance piece comprises a balance weight, a balance bolt and a locking piece; 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 weights have multiple sets and at least two different sizes.
Preferably, a direction plate is arranged on the side wall of the locking plate and arranged along the radial direction of the annular boss.
Preferably, one end of the central sleeve, which is close to the annular boss, is provided with an annular step surface, and the side wall of the balance weight is abutted against the step surface.
Preferably, the number of bolt holes is 24.
Preferably, the cylindrical sleeve is connected with a bearing and a runway, the cylindrical sleeve is provided with two groups of oil throwing holes arranged along the axial direction, the two groups of oil throwing holes are respectively communicated with the bearing and the runway, and the oil supply nozzle is provided with a first oil outlet and a second oil outlet which are arranged corresponding to the two groups of oil throwing holes.
Preferably, the cylinder sleeve corresponds the rotor setting, be equipped with the lock washer on the cylinder sleeve, be equipped with between lock washer and the rotor and cooperate the rand with the rotor joint.
According to the oil distribution sleeve structure capable of balancing the rotor in the complete machine state, the annular boss is additionally arranged at one end, close to the central sleeve, of the cylindrical sleeve, the bolt hole is formed in the annular boss, and the balancing piece is assembled in the bolt hole; when having the unbalance amount on the rotor, through surveying the size of the unbalance amount, then realize the regulation of unbalance amount through the balancing piece of different positions of bolt hole position assembly and size in the difference, need not carry out dismouting and decomposition to whole, need not get rid of the material to the rotor and can accomplish the regulation to the unbalance amount, adjust convenient stability.
Drawings
In order to more clearly illustrate the technical solutions provided by the present application, the following briefly introduces the accompanying drawings. It is to be expressly understood that the drawings described below are only illustrative of some embodiments of the invention.
FIG. 1 is a schematic cross-sectional view of the structure of the oil distribution sleeve, the rotor and the oil supply nozzle;
FIG. 2 is a schematic cross-sectional structural view of an oil distribution sleeve of the present application;
fig. 3 is a schematic view of a matching structure of the oil distribution sleeve and the balance member.
1. A central sleeve; 2. a counterbalance; 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 implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application.
An oil distribution sleeve structure capable of balancing a rotor in a complete machine state is matched with an oil supply nozzle 10 and the rotor as shown in figures 1-3, wherein the oil supply nozzle 10 extends into the oil distribution sleeve, and the rotor and the oil distribution sleeve are coaxially arranged. The unbalance of the rotor is adjusted on the basis of not changing the structure of the rotor, and the technical bias of the prior art is overcome, namely the unbalance of the rotor can be adjusted only by operating the rotor.
Comprises a cylindrical sleeve 8, a central sleeve 1 and a balancing piece. The central sleeve 1 is of a hollow conical structure, the central sleeve 1 and the cylindrical sleeve 8 are coaxially arranged, the central sleeve 1 is located 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, the oil supply nozzle is arranged in the first cavity, and a second cavity is formed between the central sleeve 1 and the annular boss 11.
The bolt holes 12 are formed in the side wall of the annular boss 11, the bolt holes 12 are in multiple groups and are evenly distributed along the circumferential interval of the annular boss 11, and one side of the balance piece is arranged in the bolt holes 12 in the second cavity and the other side of the balance piece can be installed in different positions.
When the rotor has unbalance, according to the position of an unbalance point, the bolt holes 12 on the other side of the axis position of the annular boss 11 are correspondingly provided with balance pieces, the specific positions and the number of the balance pieces are determined according to the size of the unbalance, and when the unbalance is large, more balance pieces are used; otherwise, it is less. When the weight occupied by the balance piece is the same as the unbalance amount, namely the balance piece offsets the unbalance amount of the rotor, the unbalance amount of the rotor can be adjusted.
Because the whole machine does not need to be decomposed, compared with the original mode of reducing materials, the mode of increasing the unbalance amount is more convenient to use; when a new unbalance amount appears, new balance can be established by adjusting the position 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 reduced, the problems of test/trial run interruption, long period, workload increase and the like caused by the decomposition of the lower platform of the currently adopted gas turbine are solved, the risk of unexpected problems in the processes of loading, unloading and dismounting can be avoided, and the cost generated in the processes of the loading, unloading and assembly decomposition of the gas turbine is greatly reduced.
Preferably, the balance member includes a balance weight 2, a balance bolt 3, and a locking piece 4. Balance bolt 3 and bolt hole 12 screw-thread fit, 2 one sides of balancing piece locate between 3 head of balance bolt and bolt hole 12, the opposite side is located in the second cavity, locking plate 4 locates between balance piece 2 and balance bolt 3.
Realize balancing piece 2 and locking plate 4's fixed through the cooperation with balance bolt 3 and bolt hole 12, balancing piece 2 plays the main regulating action of unbalance amount, and locking plate 4 plays the fine setting effect of unbalance amount, and in the in-service use process, through the position of rotatory locking plate 4 repeatedly, can guarantee the precision that the balancing piece adjusted the unbalance amount.
Preferably, the weight 2 is of a plurality of and at least two different sizes. Through the balancing piece 2 of the multiple different grade type of design, can form the balancing piece of multiple different weight, cooperation locking plate 4's regulation, the unbalance amount that can realize that all different balancing pieces can offset can reach the arbitrary value in certain extent, is also the balance amount of any size promptly, and the homoenergetic enough finds the combination of corresponding balancing piece or balancing piece to can adjust the unbalance amount of different grade type accurately.
When the weight is smaller, the balance weight 2 is L-shaped; when the weight is larger, the corresponding convex structure is added on one side of the balance weight 2 far away from the central sleeve 1, so that the whole weight of the balance weight 2 is increased, and meanwhile, the assembly of the balance weight 2 is not influenced.
Preferably, each different type of the balance weight 2 can record the specific weight of the corresponding balance piece by means of marking, so as to facilitate the selection.
Preferably, the direction plate 16 is arranged on the side wall of the locking plate 4, 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 unbalance amount can be finely adjusted by finely adjusting the whole balancing piece.
Preferably, one end of the central sleeve 1 close to the annular boss 11 is provided with an annular step surface 17, and the side wall of the balance weight 2 is abutted against the step surface 17. Through offsetting 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 needs.
Preferably, the cylindrical sleeve 8 is connected with a bearing 5 and a runway 9, two sets of oil slingers 13 are arranged on the cylindrical sleeve 8 along the axial direction, the two sets of oil slingers 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 are arranged corresponding to the two sets of oil slingers 13.
Lubricating oil sprayed by the oil supply nozzle 10 is sprayed out through the first oil outlet hole 14 and the second oil outlet hole 15, then is collected by the cylindrical sleeve 8, enters the two oil slinger holes 13 under the action of centrifugal force, is radially thrown out through the oil slinger holes 13, and respectively enters the pumping and runway 9 for lubrication or cooling, so that the effects of collecting and distributing the lubricating oil by the oil distribution sleeve are 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 which is in clamping fit with the rotor is arranged between the locking washer 6 and the rotor. Realize fixing cylinder sleeve 8 through set up lock washer 6 on cylinder sleeve 8, come to carry out spacing and chucking to cylinder sleeve 8 through setting up rand 7, guarantee the precision of whole branch oil jacket assembly.
When the unbalance is adjusted, the oil supply nozzle 10, the clamping ring 7 and the locking washer 6 are taken down after the cap cover and the speed measuring assembly are disassembled in the integral state of the step, so that the oil distribution sleeve can be disassembled from the rotor, and the oil distribution sleeve is disassembled in the state of the step. After the oil distribution sleeve is taken down, the balance blocks 2 with certain unbalance added at different angles are tested and analyzed to determine the angle and the size of the unbalance adjustment, and then the balance blocks 2 meeting the unbalance requirement are added at corresponding angle positions, so that the unbalance adjustment of the rotor is realized.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides an ability carries out balanced branch oil jacket structure of rotor at complete machine state, corresponds fuel feeding nozzle (10) setting, its characterized in that: comprises a cylindrical sleeve (8), a central 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), one end, close to the central sleeve (1), of the cylindrical sleeve (8) is coaxially provided with an annular boss (11), a first cavity for accommodating an 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 bolt holes (12), the bolt holes (12) are evenly distributed along the circumferential direction of the annular boss (11), one side of the balance piece is arranged in the second cavity, and the other side of the balance piece can be arranged in the bolt holes (12) at different positions.
2. The oil distribution sleeve structure capable of balancing the rotor in the complete machine state according to claim 1, wherein: the balance piece comprises a balance block (2), a balance bolt (3) and a locking plate (4); balance bolt (3) and bolt hole (12) screw-thread fit, balance weight (2) one side is located between head and the bolt hole (12) of balance bolt (3), in the second cavity is located to the opposite side, locking plate (4) are located between balance weight (2) and balance bolt (3).
3. The oil distribution sleeve structure capable of balancing the rotor in the complete machine state according to claim 2, wherein: the weights (2) have a plurality of groups and at least two different sizes.
4. The oil distribution sleeve structure capable of balancing the rotor in the complete machine state according to claim 2, wherein: be equipped with direction board (16) on the lateral wall of locking plate (4), direction board (16) are along the radial setting of annular boss (11).
5. The oil distribution sleeve structure capable of balancing the rotor in the complete machine state according to claim 2, wherein: one end of the central sleeve (1) close to the annular boss (11) is provided with an annular step surface (17), and the side wall of the balance block (2) is abutted against the step surface (17).
6. The oil distribution sleeve structure capable of balancing the rotor in the complete machine state according to claim 1, wherein: the number of the bolt holes (12) is 24.
7. The oil distribution sleeve structure capable of balancing the rotor in the complete machine state according to claim 1, wherein: the oil supply device is characterized in that a bearing (5) and a runway (9) are connected to the cylindrical sleeve (8), two groups of oil throwing holes (13) are formed in the cylindrical sleeve (8) and are arranged along the axial direction, the two groups of oil throwing holes (13) are communicated with the bearing (5) and the runway (9) respectively, and a first oil outlet (14) and a second oil outlet (15) corresponding to the two groups of oil throwing holes (13) are formed in the oil supply nozzle (10).
8. The oil distribution sleeve structure capable of balancing the rotor in the complete machine state according to claim 1, wherein: the cylindrical sleeve (8) corresponds to the rotor, a locking washer (6) is arranged on the cylindrical sleeve (8), and a clamping ring (7) matched with the rotor in a clamping mode is arranged between the locking washer (6) and the rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111192304.9A CN113969807A (en) | 2021-10-13 | 2021-10-13 | Oil distribution sleeve structure capable of balancing rotor in complete machine state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111192304.9A CN113969807A (en) | 2021-10-13 | 2021-10-13 | Oil distribution sleeve structure capable of balancing rotor in complete machine state |
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| Publication Number | Publication Date |
|---|---|
| CN113969807A true CN113969807A (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111192304.9A Pending CN113969807A (en) | 2021-10-13 | 2021-10-13 | Oil distribution sleeve structure capable of balancing rotor in complete machine state |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150226087A1 (en) * | 2012-09-05 | 2015-08-13 | Snecma | Fan rotor, in particular for a turbine engine |
| US20150322794A1 (en) * | 2013-01-25 | 2015-11-12 | Snecma | Assembly of a balance weight with 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 |
| 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 |
-
2021
- 2021-10-13 CN CN202111192304.9A patent/CN113969807A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150226087A1 (en) * | 2012-09-05 | 2015-08-13 | Snecma | Fan rotor, in particular for a turbine engine |
| US20150322794A1 (en) * | 2013-01-25 | 2015-11-12 | Snecma | Assembly of a balance weight with 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 |
| 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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