CN118090221A - Start gear box for fuel engine operation test and fuel engine operation test system - Google Patents
Start gear box for fuel engine operation test and fuel engine operation test system Download PDFInfo
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- CN118090221A CN118090221A CN202311498616.1A CN202311498616A CN118090221A CN 118090221 A CN118090221 A CN 118090221A CN 202311498616 A CN202311498616 A CN 202311498616A CN 118090221 A CN118090221 A CN 118090221A
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- output shaft
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- gas turbine
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- 238000012360 testing method Methods 0.000 title claims abstract description 42
- 239000000446 fuel Substances 0.000 title abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 60
- 238000002485 combustion reaction Methods 0.000 claims abstract description 43
- 230000001133 acceleration Effects 0.000 claims description 16
- 238000005461 lubrication Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The application provides a starting gear box for a fuel engine operation test and a fuel engine operation test system, and relates to the field of test equipment. The starting gear box for the fuel engine operation test comprises a connecting shell, a starting motor, a clutch, a parallel-stage accelerating gear set and an output shaft, wherein the starting motor, the clutch, the parallel-stage accelerating gear set and the output shaft are all arranged on the connecting shell; the connecting shell is used for being connected with the shell of the combustion engine, the starting motor is in transmission connection with the parallel-stage accelerating gear set through a clutch, the parallel-stage accelerating gear set is in transmission connection with the output shaft, and the output shaft is used for being in transmission connection with the main shaft of the combustion engine; the starting motor is used for driving the output shaft to rotate through the clutch and the parallel-stage accelerating gear set so as to drive the main shaft of the combustion engine to rotate. The starting gear box is simple in structure and low in cost.
Description
Technical Field
The invention relates to the field of test equipment, in particular to a starting gear box for a fuel engine operation test and a fuel engine operation test system.
Background
The gas turbine is an internal combustion power machine which uses continuously flowing gas as working medium to drive the impeller to rotate at high speed and convert the energy of fuel into useful work, and is a rotary impeller type heat engine. When the high-power gas turbine system normally operates, a gear box is required to be configured for speed reduction, an auxiliary starting system is arranged on the gear box, and the system is started after the gas turbine is driven to a certain rotating speed. The gearbox structure is usually a planetary structure, and the gearbox is complex in structure and high in cost, so that the performance of the combustion engine system is inconvenient to test on a large scale.
The inventors have found in research that existing gas turbine start-up systems suffer from the following drawbacks:
The structure is complex and the cost is high.
Disclosure of Invention
The invention aims to provide a starting gear box for a fuel engine operation test and a fuel engine operation test system, which can simplify the structure and reduce the cost.
Embodiments of the present invention are implemented as follows:
in a first aspect, the present invention provides a start-up gearbox for a combustion engine operation test, comprising:
The device comprises a connecting shell, a starting motor, a clutch, a parallel-stage acceleration gear set and an output shaft, wherein the starting motor, the clutch, the parallel-stage acceleration gear set and the output shaft are all arranged on the connecting shell; the connecting shell is used for being connected with a shell of the combustion engine, the starting motor is in transmission connection with the parallel-stage accelerating gear set through the clutch, the parallel-stage accelerating gear set is in transmission connection with the output shaft, and the output shaft is used for being in transmission connection with a main shaft of the combustion engine; the starting motor is used for driving the output shaft to rotate through the clutch and the parallel-stage accelerating gear set so as to drive the main shaft of the combustion engine to rotate.
In an alternative embodiment, the connecting shell comprises a shell and a connecting flange, the shell is fixedly connected with the connecting flange, and the starting motor, the clutch, the parallel-stage acceleration gear set and the output shaft are all arranged on the shell; the connecting flange is used for being connected with the shell of the gas turbine.
Based on the scheme, the connecting shell is simple in structure, a plurality of parts of the connecting shell can be processed respectively, and processing difficulty of each part is low, so that processing difficulty of the connecting shell is low, and processing cost is reduced. The starting motor, the clutch, the parallel-stage accelerating gear set and the output shaft are all arranged on the shell, the protection effect is good, the connecting flange is connected with the shell of the combustion engine, the connecting mode is simple and reliable, and the disassembly and the assembly are convenient.
In an alternative embodiment, the housing is welded to the connecting flange.
Based on the scheme, the connection mode of the shell and the connecting flange is simple and reliable, the connection structure is firm, the shell is not easy to loose, and the service life is long.
In an alternative embodiment, the parallel stage acceleration gear set includes a first transmission gear and a second transmission gear, both of which are rotatably mounted to the connection housing, the first transmission gear being meshed with the second transmission gear; the starting motor is in transmission connection with the first transmission gear through the clutch, and the second transmission gear is connected with the output shaft.
Based on the scheme, the parallel-stage accelerating gear set is simple in structure, simple and reliable in transmission mode, stable in power transmission and beneficial to outputting a torque output value.
In an alternative embodiment, the second transfer gear is splined to the output shaft.
Based on the scheme, the connection mode of the second transmission gear and the output shaft is simple and reliable, and the assembly is convenient.
In an alternative embodiment, the output shaft is provided with internal splines for engagement with a main shaft of a combustion engine.
Based on the scheme, through integrating the internal spline on the output shaft, the output shaft is simple with the main shaft cooperation mode of the combustion engine, and cooperation structure is firm reliable, and torque transmission is reliable and stable.
In an alternative embodiment, an oil inlet and an oil outlet which are used for communicating with a lubrication system of the combustion engine are arranged on the connecting shell.
Based on the scheme, through setting up oil inlet and oil-out, can be with the lubrication system intercommunication of start gear case and the lubrication system of combustion engine, the two sharing lubrication system, the structure of simplifying is convenient for control lubrication mode, and lubrication effect is good.
In an alternative embodiment, a gas seal interface is provided on the connection housing.
Based on above-mentioned scheme, through the design of gas seal interface, can separate the combustion chamber of combustion engine and the lubrication chamber of start gear case when carrying the gas, avoid gas and lubricating oil to mix, improve the security and the reliability of operation.
In an alternative embodiment, a vented cap is mounted to the connection housing.
Based on the scheme, in the operation process, the gas is pushed open the ventilation cap and is automatically discharged after the gas pressure is increased, so that the pressure relief effect is realized, and the operation reliability and stability of the starting gear box are ensured.
In a second aspect, the present invention provides a combustion engine operation test system comprising:
the starting gear box for a combustion engine operation test according to any one of the foregoing embodiments.
The embodiment of the invention has the beneficial effects that:
In summary, the starting gear box for the operation test of the gas turbine provided in this embodiment connects the output shaft with the main shaft of the gas turbine when the gas turbine is required to be tested. After the starting motor operates, the working state of the clutch is adjusted, so that the clutch can transmit torque to the parallel-stage accelerating gear set, the parallel-stage accelerating gear set is driven to move, the output shaft is driven to rotate by the parallel-stage accelerating gear set, the output shaft drives the main shaft of the fuel machine to rotate, after the main shaft of the fuel machine rotates to the ignition rotating speed, the output power of the starting motor is continuously increased, the rotating speed of the main shaft of the fuel machine is increased to the rotating speed at which the starting gear box is separated from the main shaft of the fuel machine, the clutch is switched from the matching state to the separating state, the starting motor is separated from the parallel-stage accelerating gear set, the starting gear box is separated from the main shaft of the fuel machine, and the main shaft of the fuel machine operates automatically. Because the parallel-stage accelerating gear set is adopted for torque transmission, the structure is simple, the torque transmission is stable and reliable, the whole structure is compact, the volume is small, the occupied space is small, and the assembly is convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a starting gear box for a fuel engine operation test according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a starting gearbox for a combustion engine operation test according to an embodiment of the present invention;
Fig. 3 is a front view of a starting gear box for a combustion engine operation test according to an embodiment of the present invention.
Icon:
001-a combustion engine main shaft; 100-connecting the shells; 110-a housing; 111-oil inlets; 112-oil outlet; 113-an air seal interface; 120-connecting flanges; 200-starting the motor; 300-clutch; 400-parallel stage acceleration gear set; 410-a first transmission gear; 420-a second transmission gear; 500-output shaft; 600-venting cap.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the prior art, a starting gear box configured during normal operation of the gas turbine system is a planetary gear box, and the gas turbine system is complex in structure, high in cost and inconvenient to test the performance of the gas turbine system on a large scale.
In view of the above, the designer provides a starting gear box for a fuel engine operation test, which has the advantages of simple structure, low cost, convenient disassembly and assembly, and convenient large-scale test of the performance of a fuel engine system.
Referring to fig. 1 to 3, in the present embodiment, a starting gear box for a fuel engine operation test includes a connection housing 100, a starting motor 200, a clutch 300, a parallel stage acceleration gear set 400 and an output shaft 500, all of which are mounted to the connection housing 100; the connecting shell 100 is used for being connected with a shell of the combustion engine, the starting motor 200 is in transmission connection with the parallel-stage accelerating gear set 400 through the clutch 300, the parallel-stage accelerating gear set 400 is in transmission connection with the output shaft 500, and the output shaft 500 is used for being in transmission connection with the main shaft 001 of the combustion engine; the starting motor 200 is used for driving the output shaft 500 to rotate through the clutch 300 and the parallel acceleration gear set 400 so as to drive the main shaft 001 of the combustion engine to rotate.
In view of the above, the operating principle of the starting gear box for the operation test of the gas turbine provided in this embodiment is as follows:
When testing of the combustion engine system is required, the output shaft 500 is connected to the combustion engine main shaft 001. After the starting motor 200 operates, the working state of the clutch 300 is adjusted, so that torque can be transmitted to the parallel-stage accelerating gear set 400, the parallel-stage accelerating gear set 400 is driven to move, the output shaft 500 is driven to rotate by the parallel-stage accelerating gear set 400, the output shaft 500 drives the main shaft 001 of the combustion engine to rotate, after the main shaft 001 of the combustion engine rotates to the ignition rotating speed, the output power of the starting motor 200 is continuously increased, the rotating speed of the main shaft 001 of the combustion engine is increased, the rotating speed of the starting gear box and the main shaft 001 of the combustion engine are increased, the clutch 300 is switched from the matched state to the separated state, the starting motor 200 is separated from the parallel-stage accelerating gear set 400, the starting gear box is separated from the main shaft 001 of the combustion engine, and the main shaft 001 of the combustion engine operates by itself. The parallel-stage acceleration gear set 400 is adopted for torque transmission, so that the structure is simple, the torque transmission is stable and reliable, the whole structure is compact, the volume is small, the occupied space is small, and the assembly is convenient.
The following examples illustrate by way of example the detailed construction of the starting gearbox for the operation test of a gas turbine according to the present application.
In this embodiment, optionally, the connection housing 100 includes a housing 110 and a connection flange 120, the housing 110 is fixedly connected with the connection flange 120, and the starting motor 200, the clutch 300, the parallel acceleration gear set 400 and the output shaft 500 are all mounted on the housing 110; the connection flange 120 is intended for connection with a combustion engine housing. The casing 110 is circular shell, and first pilot hole has been seted up at casing 110's middle part, and the second pilot hole has been seted up at casing 110's deviation middle part's position, and first pilot hole and second pilot hole are the round hole. In other words, the housing 110 is provided with a first assembly hole and a second assembly hole, the first assembly hole and the second assembly hole are round holes, the axis of the first assembly hole is collinear with the axis of the housing 110, and the axis of the second assembly hole is spaced from the axis of the housing 110. So design, connection shell 100 simple structure, a plurality of parts of connection shell 100 can process respectively, and every part processing degree of difficulty is low to make the processing degree of difficulty of connection shell 100 low, reduce processing cost. The starting motor 200, the clutch 300, the parallel-stage acceleration gear set 400 and the output shaft 500 are all arranged on the shell 110, the protection effect is good, the connecting flange 120 is utilized to be connected with the shell of the gas turbine, the connecting mode is simple and reliable, and the disassembly and the assembly are convenient.
The housing 110 and the connection flange 120 are welded and fixed. By the design, the connection mode of the shell 110 and the connecting flange 120 is simple and reliable, the connection structure is firm, the shell is not easy to loose, and the service life is long.
In this embodiment, optionally, the parallel acceleration gear set 400 includes a first transmission gear 410 and a second transmission gear 420, where the first transmission gear 410 and the second transmission gear 420 are rotatably mounted on the connection housing 100, specifically, the shaft body of the first transmission gear 410 is connected to the first assembly hole through a bearing, and the axis of the first transmission gear 410 is collinear with the axis of the first assembly hole. The shaft body of the second transmission gear 420 is connected with the second assembly hole through a bearing, the axis of the second transmission gear 420 is collinear with the axis of the second assembly hole, and the first transmission gear 410 is meshed with the second transmission gear 420. The start motor 200 is in driving connection with the shaft body of the first transmission gear 410 through the clutch 300, and the second transmission gear 420 is connected with the output shaft 500. So designed, the parallel stage acceleration gear set 400 has simple structure, simple and reliable transmission mode, stable power transmission and contribution to outputting torque output value to the output shaft 500.
The second transmission gear 420 is connected to the output shaft 500 by a spline. The connection mode of the second transmission gear 420 and the output shaft 500 is simple and reliable, and the assembly is convenient.
In other embodiments, the number of gears of the parallel stage acceleration gear set 400 is not limited to two, and acceleration transmission power can be realized.
In this embodiment, optionally, the output shaft 500 is mounted on the housing 110 by a bearing and is meshed with the shaft body of the second transmission gear 420. For example, the output shaft 500 is provided with an internal spline, the shaft body of the second transmission gear 420 is connected to the internal spline, and the internal spline is also used to mesh with the engine main shaft 001, so that the torque of the second transmission gear 420 can be transmitted to the engine main shaft 001 through the output shaft 500. By integrating the internal spline on the output shaft 500, the output shaft 500 is simple in matching mode with the main shaft 001 of the combustion engine, firm and reliable in matching structure, and stable and reliable in torque transmission.
In this embodiment, optionally, an oil inlet 111 and an oil outlet 112 for communicating with a lubrication system of the combustion engine are provided on the housing 110 of the connection housing 100. The housing 110 of the connection housing 100 is provided with an air sealing port 113. Through setting up oil inlet 111 and oil-out 112, can be with the lubrication system intercommunication of start-up gear box and the lubrication system of combustion engine, the two sharing lubrication system, simplified structure is convenient for control lubrication mode, and lubrication effect is good. Through the design of gas seal interface 113, can separate the combustion chamber of gas turbine and the lubrication chamber of start-up gear box when carrying the gas, avoid gas and lubricating oil to mix, improve operational security and reliability.
In this embodiment, optionally, a venting cap 600 is mounted on the connection housing 100. In the operation process, after the air pressure is increased, the air is ejected out of the air-permeable cap 600 and is automatically discharged, so that the pressure relief effect is realized, and the operation reliability and stability of the starting gear box are ensured.
The embodiment also provides a gas turbine operation test system, which comprises the starting gear box for the gas turbine operation test and has at least all the advantages of the starting gear box for the gas turbine operation test.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A start-up gearbox for a combustion engine operation test, comprising:
A connection housing (100), a start motor (200), a clutch (300), a parallel stage acceleration gear set (400) and an output shaft (500) all mounted to the connection housing (100); the connecting shell (100) is used for being connected with a shell of the gas turbine, the starting motor (200) is in transmission connection with the parallel-stage accelerating gear set (400) through the clutch (300), the parallel-stage accelerating gear set (400) is in transmission connection with the output shaft (500), and the output shaft (500) is used for being in transmission connection with a main shaft (001) of the gas turbine; the starting motor (200) is used for driving the output shaft (500) to rotate through the clutch (300) and the parallel-stage accelerating gear set (400) so as to drive the main shaft (001) of the combustion engine to rotate.
2. The starting gearbox for a gas turbine running test of claim 1, wherein:
The connecting shell (100) comprises a shell (110) and a connecting flange (120), the shell (110) is fixedly connected with the connecting flange (120), and the starting motor (200), the clutch (300), the parallel-stage accelerating gear set (400) and the output shaft (500) are all arranged on the shell (110); the connecting flange (120) is used for being connected with the gas turbine shell.
3. The starting gearbox for a gas turbine running test of claim 2, wherein:
the shell (110) is welded and fixed with the connecting flange (120).
4. The starting gearbox for a gas turbine running test of claim 1, wherein:
The parallel-stage acceleration gear set (400) comprises a first transmission gear (410) and a second transmission gear (420), the first transmission gear (410) and the second transmission gear (420) are rotatably arranged on the connecting shell (100), and the first transmission gear (410) is meshed with the second transmission gear (420); the starting motor (200) is in transmission connection with the first transmission gear (410) through the clutch (300), and the second transmission gear (420) is connected with the output shaft (500).
5. The starting gearbox for a gas turbine running test of claim 4, wherein:
The second transmission gear (420) is connected with the output shaft (500) through a spline.
6. The starting gearbox for a gas turbine running test of claim 1, wherein:
the output shaft (500) is provided with internal splines for engagement with a combustion engine main shaft (001).
7. The starting gearbox for a gas turbine running test of claim 1, wherein:
An oil inlet (111) and an oil outlet (112) which are used for communicating a lubrication system of the combustion engine are arranged on the connecting shell (100).
8. The starting gearbox for a gas turbine running test of claim 1, wherein:
an air sealing interface (113) is arranged on the connecting shell (100).
9. The starting gearbox for a gas turbine running test of claim 1, wherein:
the connection housing (100) is provided with a ventilation cap (600).
10. A combustion engine operation test system, comprising:
a start-up gearbox for a combustion engine operation test according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311498616.1A CN118090221A (en) | 2023-11-10 | 2023-11-10 | Start gear box for fuel engine operation test and fuel engine operation test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311498616.1A CN118090221A (en) | 2023-11-10 | 2023-11-10 | Start gear box for fuel engine operation test and fuel engine operation test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118090221A true CN118090221A (en) | 2024-05-28 |
Family
ID=91164373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311498616.1A Pending CN118090221A (en) | 2023-11-10 | 2023-11-10 | Start gear box for fuel engine operation test and fuel engine operation test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118090221A (en) |
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2023
- 2023-11-10 CN CN202311498616.1A patent/CN118090221A/en active Pending
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