CN208330470U - A kind of micro turbine generator - Google Patents
A kind of micro turbine generator Download PDFInfo
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- CN208330470U CN208330470U CN201820680248.0U CN201820680248U CN208330470U CN 208330470 U CN208330470 U CN 208330470U CN 201820680248 U CN201820680248 U CN 201820680248U CN 208330470 U CN208330470 U CN 208330470U
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- turbine generator
- speed motor
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- 230000008878 coupling Effects 0.000 claims abstract description 32
- 238000010168 coupling process Methods 0.000 claims abstract description 32
- 238000005859 coupling reaction Methods 0.000 claims abstract description 32
- 230000006835 compression Effects 0.000 claims description 16
- 238000007906 compression Methods 0.000 claims description 16
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000254 damaging effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Abstract
The utility model embodiment provides a kind of micro turbine generator, comprising: power head, positive coupling and high-speed motor；Power head includes power head rotor, and high-speed motor includes high speed rotor of motor；Positive coupling includes the first hubcap and the second hubcap；The first end of first hubcap is connect with power head rotor, and the second end rigid connection of the second end of the first hubcap and the second hubcap, the first end of the second hubcap is connect with high speed rotor of motor.In the utility model embodiment, since positive coupling limits the offset deviation of rotatable parts, so as to avoid itself flexible vibration of rotatable parts in generator operation, the resonance of generator is further avoided.At the same time, since positive coupling has the characteristics that part is few, light-weight and structure is simple, the structure of micro turbine generator is simplified, is maintained convenient for later maintenance, reduces overall cost.
Description
Technical field
The utility model embodiment is related to technical field of generators, more particularly, to a kind of micro turbine generator.
Background technique
Micro turbine generator is a kind of small distributed energy system and power generator, has that energy utilization rate is high, ring
The features such as border pollution is small and good in economic efficiency, has good development prospect, and the situation for alleviating energy shortage has important
Meaning.Micro turbine generator has power head and high-speed motor two parts rotatable parts.In the related technology, flexibility is generallyd use
Shaft coupling connects power head rotor and high speed rotor of motor.But since flexible coupling allows rotor to have individually axial position
It moves, and the two rotor centerings that are connected can have certain deviation, therefore, in the operational process of micro turbine generator, flexible shaft coupling
The deviation of device will lead to multiple spot and vibrate and cause to resonate, and damage to micro turbine generator inner body.
Utility model content
To solve the above-mentioned problems, the utility model embodiment provides one kind and overcomes the above problem or at least partly solve
A kind of certainly micro turbine generator of the above problem.
The utility model embodiment provides a kind of micro turbine generator, comprising: power head, positive coupling and high speed electricity
Machine；Power head includes power head rotor, and high-speed motor includes high speed rotor of motor；Positive coupling includes the first hubcap and the
Two hubcaps；The first end of first hubcap is connect with power head rotor, the second end of the first hubcap and the second shaft end
The second end of lid is rigidly connected, and the first end of the second hubcap is connect with high speed rotor of motor.
Wherein, the second end of the first hubcap protrudes outward to form first axle in the axial direction, and the of the second hubcap
Two ends are recessed inwardly to form the first hole in the axial direction, and first axle is inserted into the first hole；Alternatively, the second end of the first hubcap
Portion is recessed inwardly to form the second hole in the axial direction, and the second end of the second hubcap is recessed inwardly to form second in the axial direction
Axis, the second axis are inserted into the second hole.
Wherein, the first hubcap and the second hubcap are fixed by locking nut.
Wherein, the first end of the first hubcap is recessed inwardly to form third hole in the axial direction, the end of power head rotor
Portion is connect with the interference of third hole；The first end of second hubcap is recessed inwardly to form the 4th hole, high-speed motor in the axial direction
The end of rotor is connect with the 4th hole interference.
Wherein, power head rotor includes turbine, hollow shaft and compression impellor；One end of hollow shaft and the center of turbine connect
It connects, one end connection at the center of the other end and compression impellor of hollow shaft, the other end and third hole mistake at the center of compression impellor
It is full of connection.
Wherein, power head further includes the first air bearing and air bearing seat；First air bearing is surrounded on outside hollow shaft
Portion, air bearing seat ring are around in outside the first air bearing.
Wherein, power head further includes compressor panel and airscoop shroud；Compressor panel is surrounded on the outside of compression impellor, into
One end of gas hood is connect with compressor panel, the other end of airscoop shroud and the high-speed motor cage connection of high-speed motor, airscoop shroud
It is surrounded on the outside of positive coupling, is provided with air inlet on airscoop shroud.
Wherein, high-speed motor further includes high-speed motor stator and the second air bearing；High-speed motor stator is surrounded on high speed
Outside in the middle part of rotor, the second air bearing are surrounded on the outside of high speed rotor of motor stem and tail portion.
Wherein, high-speed motor further includes high-speed motor shell, and high-speed motor shell is surrounded on the second air bearing and high speed
The outside of motor stator.
Wherein, high speed rotor of motor is hollow structure.
Micro turbine generator provided by the embodiment of the utility model, comprising: power head, positive coupling and high speed electricity
Machine；Power head includes power head rotor, and high-speed motor includes high speed rotor of motor；Positive coupling includes the first hubcap and the
Two hubcaps；The first end of first hubcap is connect with power head rotor, the second end of the first hubcap and the second shaft end
The second end of lid is rigidly connected, and the first end of the second hubcap is connect with high speed rotor of motor.Since positive coupling limits
The offset deviation of rotatable parts is made, so as to avoid itself flexible vibration of rotatable parts in generator operation, further
Avoid the resonance of generator.At the same time, since positive coupling has the characteristics that part is few, light-weight and structure is simple,
Therefore the structure of micro turbine generator is simplified, is maintained convenient for later maintenance, reduces overall cost.
It should be understood that above general description and following detailed description be it is exemplary and explanatory, can not
Limit the utility model embodiment.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of micro turbine generator of the utility model embodiment；
Fig. 2 is a kind of rotor connection structure schematic diagram of micro turbine generator of the utility model embodiment；
Fig. 3 is a kind of first axle end cover structure schematic diagram of micro turbine generator of the utility model embodiment；
Fig. 4 is a kind of the second hubcap structural schematic diagram of micro turbine generator of the utility model embodiment；
In figure, 1: turbine, 2: hollow shaft, 3: air bearing seat, 4: the first air bearing, 5: compression impellor, 6: compressor
Panel, 7: airscoop shroud, 8: the first hubcaps, 9: the second hubcaps, 10: high speed rotor of motor, 11: the second air bearing, 12: high
Speed motor stator, 13: high-speed motor shell.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment work of the utility model embodiment is further retouched in detail
It states.Embodiment that the following examples illustrate the utility model, but it is not limited to the range of the utility model embodiment.
In the description of the utility model embodiment, it should be noted that term " center ", "upper", "lower", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "inner", "outside" is orientation based on the figure or position
Relationship, be merely for convenience of description the utility model embodiment and simplify description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as implementing the utility model
The limitation of example.In addition, term " first ", " second ", " third " are used for description purposes only, it is not understood to indicate or imply phase
To importance.
In the description of the utility model embodiment, it should be noted that unless otherwise clearly defined and limited, term
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State concrete meaning of the term in the utility model embodiment.
Micro turbine generator includes power head and high-speed motor.Mechanical energy is usually generated by power head and passes mechanical energy
It is handed to high-speed motor, high-speed motor converts electric energy for received mechanical energy to realize power generation.In the related technology, example is generallyd use
As the flexible connection mode of flexible coupling connects power head and high-speed motor.Since flexible connection mode allows miniature turbine to send out
There are deviations for each rotatable parts in motor, therefore, rotatable parts movable certain displacement in rotation, and after exercise with
Other component collides, to generate mechanical oscillation.Since different rotatable parts are located at the difference of micro turbine generator
Position, the vibration that each rotatable parts generate make micro turbine generator generate multiple spot vibration, and multiple spot vibration can further result in machine
Tool resonance.Mechanical resonance can generate very big deformation and dynamic stress to the device structure of micro turbine generator, give miniature turbine
Generator damaging property consequence.For said circumstances, the utility model embodiment provides a kind of micro turbine generator.Referring to
Fig. 1, comprising:
Power head, positive coupling and high-speed motor；Power head includes power head rotor, and high-speed motor includes high-speed motor
Rotor 10；Positive coupling includes the first hubcap 8 and the second hubcap 9；The first end and power head of first hubcap 8 turn
The second end of son connection, the second end of the first hubcap 8 and the second hubcap 9 is rigidly connected, and the first of the second hubcap 9
End is connect with high speed rotor of motor 10.
Specifically, positive coupling is a kind of shaft coupling of torsional rigid, without between any revolution when receiving load
Gap, when even thering is deviation to generate load, positive coupling or rigid of transmission torque.Positive coupling is used to couple different machines
Two axis (driving shaft and driven shaft) in structure are allowed to rotate jointly to transmit torque.In micro turbine generator, power head
Including power head rotor be driving shaft, the high speed rotor of motor 10 that high-speed motor includes be driven shaft.Power head rotor is actively
Rotation, and drive high speed rotor of motor 10 to rotate by positive coupling.Positive coupling specifically includes the first hubcap and
Two hubcaps, power head rotor passes sequentially through the first hubcap and the second hubcap is connect with high speed rotor of motor 10.It should say
Bright, in the related technology, the effect of hubcap is usually the axially position of bearing outer ring and prevents in bearing working engineering
Dirt and sealing.But the first hubcap 8 and the second hubcap 9 in the utility model embodiment are for power head rotor and high speed
The connector that rotor 10 specially designs, main function are that combination forms positive coupling to realize power head rotor and height
Linkage function between speed motor rotor.
Micro turbine generator provided by the embodiment of the utility model, comprising: power head, positive coupling and high speed electricity
Machine；Power head includes power head rotor, and high-speed motor includes high speed rotor of motor；Positive coupling includes the first hubcap and the
Two hubcaps；The first end of first hubcap is connect with power head rotor, the second end of the first hubcap and the second shaft end
The second end of lid is rigidly connected, and the first end of the second hubcap is connect with high speed rotor of motor.Since positive coupling limits
The offset deviation of rotatable parts is made, so as to avoid itself flexible vibration of rotatable parts in generator operation, further
Avoid the resonance of generator.At the same time, since positive coupling has the characteristics that part is few, light-weight and structure is simple,
Therefore the structure of micro turbine generator is simplified, is maintained convenient for later maintenance, reduces overall cost.
Referring to Fig. 3 and Fig. 4, content based on the above embodiment provides a kind of first shaft end as a kind of alternative embodiment
The rigidly connected structure of the second end of the second end of lid 8 and the second hubcap 9, including but not limited to: the first hubcap 8
The second end protrudes outward to form first axle in the axial direction, and the second end of the second hubcap 9 is recessed inwardly in the axial direction
The first hole is formed, first axle is inserted into the first hole；The shape alternatively, the second end of the first hubcap 8 is recessed inwardly in the axial direction
At the second hole, the second end of the second hubcap 9 is recessed inwardly to form the second axis in the axial direction, and the second axis is inserted into the second hole
It is interior.Specifically, in order to realize the rigid connection between the first hubcap 8 and the second hubcap 9, above two side can be used
Formula.It as shown in Figures 3 and 4, is the first implementation therein, i.e. the first axle of the first hubcap is inserted into the of the second hubcap
In two holes, to form rigid connection.It is understood that second of implementation, i.e. the second axis insertion of the second hubcap the
In second hole of one hubcap, rigid connection can be equally formed.
Content based on the above embodiment is provided and a kind of fixes the first hubcap and second as a kind of alternative embodiment
The structure of hubcap, including but not limited to: the first hubcap 8 and the second hubcap 9 are fixed by locking nut.Specifically, it locks
For the outer round surface of tight nut to perforative evenly distributed threaded hole is drilled between inner circle flank, the quantity of threaded hole can basis
Demand is selected.By taking the first above-mentioned implementation as an example, referring to Fig. 3 and Fig. 4, before first axle is inserted into the first hole,
Can a locking nut be respectively fixedly arranged in the outside in first axle and the first hole in advance.After first axle is inserted into the first hole, two
A locking nut constitutes an entirety, and the threaded hole being correspondingly arranged on two locking nuts forms a threaded hole.Then may be used
It is screwed into sunk screw by threaded hole, so that the first hubcap 8 and the second hubcap 9 are fixed.
Content based on the above embodiment provides the first hubcap of one kind and power head turns as a kind of alternative embodiment
The structure that son and the second hubcap are connect with high speed pole rotor, including but not limited to: the first end edge of the first hubcap 8
Axis direction is recessed inwardly to form third hole, and the end of power head rotor is connect with the interference of third hole；The first of second hubcap 9
End is recessed inwardly to form the 4th hole in the axial direction, and the end of high speed rotor of motor 10 is connect with the 4th hole interference.Specifically,
Interference connection is the shrink value using axis and hole, so that piece surface is generated elastic pressure after assembly, to obtain the connection of fastening.
Specifically, for the first hubcap 8, the size of power head rotor is greater than the size in third hole；For the second hubcap 9, high speed
The size of rotor is greater than the size in the 4th hole.The structure of interference connection is simple, and centering precision is good, can bear torque, axial
The compound load of power or both, and bearing capacity is high, work that also can be relatively reliable under impact vibration load.Interference connection
Processing method can be using plunging or temperature differential method etc., and the utility model embodiment is not construed as limiting this.
Referring to fig. 2, content based on the above embodiment, as a kind of alternative embodiment, power head rotor include turbine 1,
Hollow shaft 2 and compression impellor 5；One end of hollow shaft 2 is connect with the center of turbine 1, the other end and compression impellor 5 of hollow shaft 2
Center one end connection, the other end at the center of compression impellor 5 connect with the interference of third hole.Specifically, fuel combustion generates
Energy drive 1 high speed rotation of turbine, and kinetic energy is passed to by compression impellor 5 and high speed rotor of motor 10 by hollow shaft 2.It is empty
Mandrel 2 is used to transmit the kinetic energy of turbine 1, and the hollow shaft of hollow structure is compared with solid shafting, torsional strength is good, weight compared with
Gently, and it is smaller for the load of the bearing outside hollow shaft, power head can be made to turn using 20000 revs/min of hollow shaft
Son suspends, and solid shafting then needs higher revolving speed.Turbine 1 can drive compression impellor 5 to rotate by hollow shaft 2, can incite somebody to action
Fresh air pressurization, heating feeding combustion chamber make fuel combustion, so that further driving turbine 1 rotates.
Content based on the above embodiment, as a kind of alternative embodiment, power head further includes the first air bearing 4 and sky
Gas bearing block 3；First air bearing 4 is surrounded on outside hollow shaft 2, and air bearing seat 3 is surrounded on outside the first air bearing 4.
Specifically, air bearing is also known as air-bearing, refers to being made with gas (usually air, but it could also be possible that other gases)
For the sliding bearing of lubricant, due to there is no a Mechanical Contact, the degree of wear fall below it is minimum, so that it is guaranteed that bearing internally-powered head turns
The stability of the precision of son.First air bearing 4 is for supporting high speed of the power head rotor inside the first air bearing 4 to turn
It is dynamic.Air bearing seat 3 is set in the outside of the first air bearing 4, for fix the first air bearing 4 and power head other
On-rotatably moving part.
Content based on the above embodiment, as a kind of alternative embodiment, power head further includes compressor panel 6 and air inlet
Cover 7；Compressor panel 6 is surrounded on the outside of compression impellor 5, and one end of airscoop shroud 7 is connect with compressor panel 6, airscoop shroud 7
The connection of the high-speed motor shell 13 of the other end and high-speed motor, airscoop shroud 7 are surrounded on the outside of positive coupling, on airscoop shroud 7
It is provided with air inlet.Specifically, compressor panel 6 is for fixing other on-rotatably moving parts in airscoop shroud 7 and power head.Air inlet
Cover 7 for connecting on-rotatably moving part outside power head and high-speed motor, i.e. high-speed motor shell 13, be provided on airscoop shroud 7 into
Port, air can be sent into combustion chamber by compression impellor 5 by air inlet.
Content based on the above embodiment, as a kind of alternative embodiment, high-speed motor further includes high-speed motor stator 12
With the second air bearing 11；High-speed motor stator 12 is surrounded on the outside at 10 middle part of high speed rotor of motor, the second air bearing 11
It is surrounded on the outside of 10 stem of high speed rotor of motor and tail portion.Specifically, high-speed motor stator 12 be high-speed motor in it is static not
Dynamic part, high speed rotor of motor 10 can convert mechanical energy into electric energy relative to the rotation of high-speed motor stator 12.Second is empty
Gas bearing 11 is used to support part high-speed rotation of the high speed rotor of motor 10 in the second air bearing 11.
Content based on the above embodiment, as a kind of alternative embodiment, high-speed motor further includes high-speed motor shell 13,
High-speed motor shell 13 is surrounded on the outside of the second air bearing 11 and high-speed motor stator 12.Specifically, high-speed motor shell
13 are arranged in the outermost layer of high-speed motor, for fixing on-rotatably moving part (including the second air bearing 11 and the height of high-speed motor
Speed motor stator 12).
Content based on the above embodiment, as a kind of alternative embodiment, high speed rotor of motor 10 is hollow structure.At a high speed
Rotor 10, which is set as hollow structure, can reduce weight, and higher revolving speed can be obtained under identical rotary driving force.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (10)
1. a kind of micro turbine generator characterized by comprising power head, positive coupling and high-speed motor；The power
Head includes power head rotor, and the high-speed motor includes high speed rotor of motor；The positive coupling include the first hubcap and
Second hubcap；The first end of first hubcap is connect with the power head rotor, and the second of first hubcap
The second end of end and second hubcap is rigidly connected, the first end and the high-speed motor of second hubcap
Rotor connection.
2. micro turbine generator according to claim 1, it is characterised in that:
The second end of first hubcap protrudes outward to form first axle in the axial direction, and the second of second hubcap
End is recessed inwardly to form the first hole in the axial direction, and the first axle is inserted into first hole；Alternatively,
The second end of first hubcap is recessed inwardly to form the second hole in the axial direction, and the second of second hubcap
End is recessed inwardly to form the second axis in the axial direction, and second axis is inserted into second hole.
3. micro turbine generator according to claim 2, which is characterized in that pass through the fixed first axle of locking nut
End cap and second hubcap.
4. micro turbine generator according to claim 1, it is characterised in that:
The first end of first hubcap is recessed inwardly to form third hole in the axial direction, the end of the power head rotor
It is connect with third hole interference；
The first end of second hubcap is recessed inwardly to form the 4th hole in the axial direction, the end of the high speed rotor of motor
Portion is connect with the 4th hole interference.
5. micro turbine generator according to claim 4, which is characterized in that the power head rotor includes turbine, sky
Mandrel and compression impellor；One end of the hollow shaft is connect with the center of the turbine, the other end of the hollow shaft with it is described
The one end at the center of compression impellor connects, and the other end at the center of the compression impellor is connect with third hole interference.
6. micro turbine generator according to claim 5, which is characterized in that the power head further includes the first air axis
It holds and air bearing seat；First air bearing is surrounded on outside the hollow shaft, and the air bearing seat ring is around in described
Outside first air bearing.
7. micro turbine generator according to claim 5, which is characterized in that the power head further includes compressor panel
And airscoop shroud；The compressor panel is surrounded on the outside of the compression impellor, one end of the airscoop shroud and the compressor
Panel connection, the high-speed motor cage connection of the other end of the airscoop shroud and the high-speed motor, the airscoop shroud are surrounded on
The outside of the positive coupling is provided with air inlet on the airscoop shroud.
8. micro turbine generator according to claim 1, which is characterized in that the high-speed motor further includes high-speed motor
Stator and the second air bearing；The high-speed motor stator is surrounded on the outside in the middle part of the high speed rotor of motor, and described second
Air bearing is surrounded on the stem of the high speed rotor of motor and the outside of tail portion.
9. micro turbine generator according to claim 8, which is characterized in that the high-speed motor further includes high-speed motor
Shell, the high-speed motor shell are surrounded on the outside of second air bearing and the high-speed motor stator.
10. micro turbine generator according to claim 1, which is characterized in that the high speed rotor of motor is hollow knot
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820680248.0U CN208330470U (en) | 2018-05-08 | 2018-05-08 | A kind of micro turbine generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820680248.0U CN208330470U (en) | 2018-05-08 | 2018-05-08 | A kind of micro turbine generator |
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| Publication Number | Publication Date |
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| CN208330470U true CN208330470U (en) | 2019-01-04 |
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ID=64776292
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| CN201820680248.0U Active CN208330470U (en) | 2018-05-08 | 2018-05-08 | A kind of micro turbine generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386236A (en) * | 2018-05-08 | 2018-08-10 | 武汉英康汇通电气有限公司 | A kind of micro turbine generator |
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2018
- 2018-05-08 CN CN201820680248.0U patent/CN208330470U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386236A (en) * | 2018-05-08 | 2018-08-10 | 武汉英康汇通电气有限公司 | A kind of micro turbine generator |
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