CN208803874U - A kind of turbine T-shaped axle assembly - Google Patents
A kind of turbine T-shaped axle assembly Download PDFInfo
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- CN208803874U CN208803874U CN201821519689.9U CN201821519689U CN208803874U CN 208803874 U CN208803874 U CN 208803874U CN 201821519689 U CN201821519689 U CN 201821519689U CN 208803874 U CN208803874 U CN 208803874U
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- circular
- turbine
- curved wall
- connecting shaft
- spliced eye
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Abstract
The utility model relates to a kind of turbine T-shaped axle assemblies, the turbine T-shaped axle assembly includes turbine wheel shaft, the turbine disk, compressor, the tail end of the turbine wheel shaft is fixedly linked with the turbine disk, non-circular connecting shaft is arranged in the front of the turbine wheel shaft, setting non-circular spliced eye compatible with the non-circular connecting shaft on the compressor, when so that the turbine wheel shaft and the compressor are mating, non-circular connecting shaft is placed in the non-circular spliced eye, the non-circular connecting shaft is angularly limited by non-circular spliced eye, so that compressor can be rotated with the turbine wheel shaft.
Description
Technical field
The utility model relates to turbine technology field, especially a kind of turbine T-shaped axle assembly.
Background technique
Common ship booster includes the turbine and compressor of coaxial arrangement, passes through turbine wheel shaft between turbine and compressor
It is connected；Turbine assembly generally comprises turbine wheel shaft, the turbine disk, multiple turbo blades in the prior art, and the turbine disk and turbine wheel shaft are solid
It is fixed to be connected, it is formed when radially being observed along the turbine disk in T-shaped, therefore commonly referred to as stub axle；The other end of stub axle needs
It is fixedly linked with compressor, stub axle high-speed rotation is driven with compressor, to prevent from relatively rotating between stub axle and compressor,
Common practice is a plane to be arranged on the periphery of stub axle to form the shaft shoulder, plays the role of positioning, due to stub axle
Periphery smoothly transits, and forms wedge angle transition in the plane of the shaft shoulder and stub axle periphery intersection, causes the stress of intersection
It concentrates, when rotating at high speed, intersection is easily broken, and influences service life, and safety accident is even caused when serious.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of turbines realized smooth transition, stress is avoided to concentrate
With T-shaped axle assembly.
In order to solve the above technical problems, turbine provided by the utility model T-shaped axle assembly, including turbine wheel shaft, turbine
Disk, compressor, the tail end of the turbine wheel shaft are fixedly linked with the turbine disk, and non-circular connection is arranged in the front of the turbine wheel shaft
Axis, setting non-circular spliced eye compatible with the non-circular connecting shaft on the compressor, so that the turbine wheel shaft and the pressure
When mechanism of qi is mating, non-circular connecting shaft is placed in the non-circular spliced eye, by non-circular spliced eye to the non-circular connecting shaft into
The angular limit of row, so that compressor can drive the turbine wheel shaft to rotate.
Further, the oval setting in cross section of the non-circular connecting shaft, the cross section of the non-circular spliced eye is in ellipse
Circle setting.
Further, the cross section of the non-circular connecting shaft is in subtriangular, and the non-circular connecting shaft includes the first arc
Side wall, the second curved wall, third curved wall, first curved wall and second curved wall, second arc
Respectively through arc-shaped transition between shape side wall and the third curved wall, the third curved wall and first curved wall
Wall is connected, so that smoothly transitting between the first curved wall, the second curved wall, third curved wall, it is prominent to avoid the occurrence of shape
Become so that stress is concentrated.
Further, the non-circular connecting shaft and the non-circular spliced eye are interference fitted, so that the non-circular connecting shaft insertion
After the non-circular spliced eye, can preferably it be limited.
Further, guiding axis is arranged in the front end of the non-circular connecting shaft, and the diameter of the guiding axis is less than described non-circular slotting
The diameter in hole is connect, so that guiding axis can be rapidly inserted into non-circular spliced eye.
The technical effect of utility model: (1) turbine of the utility model T-shaped axle assembly, compared with the existing technology,
Non-circular connecting shaft is arranged in the front of turbine wheel shaft, non-circular spliced eye is arranged on compressor, so that turbine wheel shaft can after connecting with compressor
It is angularly limited, the surface of turbine wheel shaft eliminates the setting of the shaft shoulder；The cross section of non-circular connecting shaft is oval, so that non-circular
After the non-circular spliced eye of connecting shaft insertion ellipse, effectively non-circular connecting shaft angularly can be limited；Or non-circular connection
The cross section of axis constitutes its main body, phase by the first curved wall, the second curved wall, third curved wall in subtriangular
It is connected between adjacent curved wall through arc-shaped transition wall, so that non-circular connecting shaft has a smooth surface transition, effectively avoids stress collection
In.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings of the specification:
Fig. 1 is the structural schematic diagram after the utility model stub axle general assembly；
Fig. 2 is turbine wheel shaft and the structural schematic diagram after turbine disk assembly in the utility model；
The schematic diagram of the section structure of the compressor of Fig. 3 the utility model；
Fig. 4 is the schematic cross-sectional view of the non-circular connecting shaft in embodiment 1；
Fig. 5 is the schematic cross-sectional view of the non-circular connecting shaft in embodiment 2.
In figure: turbine wheel shaft 1, guiding axis 11, the turbine disk 12, compressor 2, non-circular spliced eye 21, pilot hole 22, non-circular connection
Axis 3, the first curved wall 31, the second curved wall 32, third curved wall 33, arc-shaped transition wall 34.
Specific embodiment
Embodiment 1
As shown in Figures 1 to 4, the turbine of the present embodiment T-shaped axle assembly, including turbine wheel shaft 1, the turbine disk 12, calm the anger
Machine 2, tail end and the turbine disk 12 of turbine wheel shaft 1 are fixedly linked, and non-circular connecting shaft 3, non-circular connecting shaft 3 is arranged in the front of turbine wheel shaft 1
The oval setting in cross section, setting non-circular spliced eye 21 compatible with non-circular 3 shape of connecting shaft, non-circular on compressor 2
The equally oval setting in the cross section of spliced eye 21, when so that turbine wheel shaft 1 and compressor 2 assembling, non-circular connecting shaft 3 is placed in non-
In circle spliced eye 21, non-circular connecting shaft 3 is angularly limited by non-circular spliced eye 21, so that compressor 2 can drive turbine wheel shaft 1
Rotation；Non-circular connecting shaft 3 is interference fitted with non-circular spliced eye 21, so that after non-circular connecting shaft 3 is inserted into non-circular spliced eye 21, it can be more
Good limit；Guiding axis 11 is arranged in the front end of non-circular connecting shaft 3, and the diameter of guiding axis 11 is less than the straight of non-circular spliced eye 21
On compressor 2, pilot hole 22 compatible with guiding axis 11 is arranged, so that guiding axis 11 can be fast in diameter on the inside of non-circular spliced eye 21
Speed is inserted into non-circular spliced eye 21, and guiding axis 11 is mating with pilot hole 22 after non-circular spliced eye 21.
Embodiment 2
On the basis of embodiment 1, there is following variation: non-circular connecting shaft in the turbine of the present embodiment T-shaped axle assembly
3 cross section in subtriangular, as shown in figure 5, non-circular connecting shaft 3 include the first curved wall 31, the second curved wall 32,
Third curved wall 33, the first curved wall 31 and the second curved wall 32, the second curved wall 32 and third curved wall 33,
It is connected respectively through arc-shaped transition wall 34 between third curved wall 33 and the first curved wall 31, so that the first curved wall 31,
It smoothly transits between second curved wall 32, third curved wall 33, avoids the occurrence of shape and be mutated so that stress is concentrated.
Obviously, above-described embodiment is merely examples for clearly illustrating the present invention, and is not to this reality
With the restriction of novel embodiment.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.And these
Belong to the spiritual changes and variations that derived from of the utility model still in the protection scope of the utility model
Among.
Claims (5)
1. a kind of turbine T-shaped axle assembly, which is characterized in that including turbine wheel shaft, the turbine disk, compressor, the turbine wheel shaft
Tail end is fixedly linked with the turbine disk, and non-circular connecting shaft, setting and institute on the compressor is arranged in the front of the turbine wheel shaft
The compatible non-circular spliced eye of non-circular connecting shaft is stated, when so that the turbine wheel shaft and the compressor are mating, non-circular connection
Axis is placed in the non-circular spliced eye, is angularly limited by non-circular spliced eye to the non-circular connecting shaft, so that compressor can
It is rotated with the turbine wheel shaft.
2. turbine according to claim 1 T-shaped axle assembly, which is characterized in that the cross section of the non-circular connecting shaft
Oval setting, the oval setting in cross section of the non-circular spliced eye.
3. turbine according to claim 1 T-shaped axle assembly, which is characterized in that the cross section of the non-circular connecting shaft
In subtriangular, the non-circular connecting shaft includes the first curved wall, the second curved wall, third curved wall, and described the
One curved wall and second curved wall, second curved wall and the third curved wall, the third arc
Be connected respectively through arc-shaped transition wall between side wall and first curved wall so that the first curved wall, the second curved wall,
It smoothly transits between third curved wall.
4. turbine according to claim 2 or 3 T-shaped axle assembly, which is characterized in that the non-circular connecting shaft and institute
State non-circular spliced eye interference fit.
5. turbine according to claim 4 T-shaped axle assembly, which is characterized in that the front end of the non-circular connecting shaft is set
Guiding axis is set, the diameter of the guiding axis is less than the diameter of the non-circular spliced eye.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821519689.9U CN208803874U (en) | 2018-09-17 | 2018-09-17 | A kind of turbine T-shaped axle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821519689.9U CN208803874U (en) | 2018-09-17 | 2018-09-17 | A kind of turbine T-shaped axle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208803874U true CN208803874U (en) | 2019-04-30 |
Family
ID=66238173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821519689.9U Active CN208803874U (en) | 2018-09-17 | 2018-09-17 | A kind of turbine T-shaped axle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208803874U (en) |
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2018
- 2018-09-17 CN CN201821519689.9U patent/CN208803874U/en active Active
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