CN110332019A - A kind of closed cycle turbine electricity generation system is built-in to lock air floating rotor - Google Patents
A kind of closed cycle turbine electricity generation system is built-in to lock air floating rotor Download PDFInfo
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- CN110332019A CN110332019A CN201910647952.5A CN201910647952A CN110332019A CN 110332019 A CN110332019 A CN 110332019A CN 201910647952 A CN201910647952 A CN 201910647952A CN 110332019 A CN110332019 A CN 110332019A
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- screw thread
- motor shaft
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- 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
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/08—Adaptations for driving, or combinations with, pumps
-
- 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
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
-
- 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
- F01D5/04—Blade-carrying members, e.g. rotors for radial-flow machines or engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/04—Units comprising pumps and their driving means the pump being fluid-driven
- F04D25/045—Units comprising pumps and their driving means the pump being fluid-driven the pump wheel carrying the fluid driving means, e.g. turbine blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/266—Rotors specially for elastic fluids mounting compressor rotors on shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/60—Assembly methods
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The present invention relates to air floating rotor, including compressor impeller, retaining ring, composite shaft sleeve, connection bearing, transition axle sleeve, motor shaft, fixed hub, radial axle sleeve and turbine rotor are locked built in a kind of closed cycle turbine electricity generation system.There is threaded hole at the compressor impeller center, there is the annular end face of coaxial axial thrust bearing cooperation on the composite shaft sleeve, the connecting shaft is cased with the inner cylinder face mutually assembled with compressor impeller, the motor shaft is assembled by magnetic core and motor shaft sleeve, there is assembly internal screw thread at the both ends of the motor shaft, the radial direction axle sleeve is assemblied on fixed hub by inner hole, has locking annular groove on the turbine rotor, the retaining ring is located in the locking annular groove of turbine rotor and compressor impeller.The rotor structure can significantly increase rotor bonding strength, improve the run stability of closed cycle radial-flow turbine electricity generation system rotor, while can prevent rotor from getting loose during the work time, improve the functional reliability of rotor.
Description
Technical field
The invention belongs to closed cycle radial turbine power generation system structure design fields, and in particular to a kind of closed cycle
Turbine electricity generation system is built-in to lock air floating rotor.
Background technique
Closed cycle turbine electricity generation system, can be by certain gas work as a kind of new and effective heating power reformulations
Make to realize conversion of the thermal energy to electric energy by absorbing the thermal processions such as heat, expansion work, heat release and compression under enclosed environment.
Typical closed cycle radial-flow turbine electricity generation system is mainly made of components such as turbine, compressor, generator, regenerators.
The rotor of closed cycle radial-flow turbine electricity generation system is core the most in closed cycle radial-flow turbine electricity generation system
One of component, including turbine and compressor rotor and generator amature two parts imitate the stable operation of system, heat to electricity conversion
Rate, reliability and service life play conclusive effect.During operation, rotor is in closed cycle radial-flow turbine electricity generation system
High speed rotation state, revolving speed is up to tens of thousands of revs/min, and even ten tens of thousands of revs/min of some, rotor structure once breaks down, no
The system of will result only in can not work normally, but also can cause the structural failure of system.Therefore, the reliability of rotor is for enclosed
The safe operation of turbine electricity generation system is most important.
Existing closed cycle radial turbine electricity generation system rotor is mainly by turbine rotor, main shaft, compressor impeller, electricity
The components such as arbor, shaft coupling composition, is connected by interference by shaft coupling and realizes turbine and the same motor of compressor impeller rotor
Connection between rotor, specifically: main shaft carries on the back boss and compressor impeller wheel with turbine rotor wheel respectively by its both ends inner hole
Back boss interference is joined together to form power shaft, then by the both ends inner hole of shaft coupling respectively with motor shaft one end and pressure
Elastic conjunction between compressor wheel input end wheel hub, power shaft and motor shaft are linked together, and form complete rotor.
Existing closed cycle turbine electricity generation system rotor structure, although can guarantee to a certain extent coaxial between each component of rotor
Degree, but since interference bonding strength depends on the fitted position and its tolerance between each components, to component assembly position
Machining accuracy proposes very high request；In addition rotor is influenced by service load, and the practical magnitude of interference of connecting portion can reduce, and is turned
The bonding strength and rigidity of son cannot be effectively ensured, and are also easy to produce and loosen between rotor component part, seriously affect closed cycle
The functional reliability of turbine electricity generation system.
The characteristics of for closed cycle radial-flow turbine electricity generation system rotor and bearing and requirement rationally design rotor
The manufacturing process of structure and optimization rotor is that raising closed cycle radial-flow turbine operation of electric power system stability and guarantee system can
By the key of property.
Summary of the invention
The present invention is directed to closed cycle radial-flow turbine electricity generation system rotor design problem, proposes a kind of closed cycle turbine
Electricity generation system is built-in to lock air floating rotor.According to the turbine wheel of closed cycle turbine electricity generation system, compressor impeller and
The dimensional parameters of motor, by rationally designing compressor impeller, retaining ring, composite shaft sleeve, connection bearing, transition axle sleeve, motor
The structure size and assembly screw-down torque of axis, fixed hub, radial axle sleeve and turbine rotor.Complete rotor structure composition zero
On the basis of component processing, the assembly of turbine end radial direction sleeve assembly and motor shaft is completed first, and it is radial secondly to complete turbine end
Sleeve assembly, motor shaft between turbine rotor assembly and transition axle sleeve with the assembly between motor shaft, then complete pressure
The assembly of mechanism of qi end composite shaft sleeve component and generator terminal composite shaft sleeve component of calming the anger are finally completed and are calmed the anger with the assembly of transition axle sleeve
Machine impeller realizes the locking of rotor structure with the assembly for generator terminal composite shaft sleeve component, turbine rotor and retaining ring of calming the anger.The rotor
Structure reduces the quantity of supporting-point, can reduce the manufacture difficulty of rotor, can significantly improve closed cycle radial-flow turbine hair
The operation stability of electric system, while can prevent rotor structure from getting loose during the work time, improve rotor structure reliability.
Technical solution of the present invention:
A kind of closed cycle turbine electricity generation system is built-in to lock air floating rotor, including compressor impeller, retaining ring, multiple
Sympodium set, connection bearing, transition axle sleeve, motor shaft, fixed hub, radial axle sleeve and turbine rotor.In the compressor impeller
The heart has threaded hole, and the internal screw thread rotation direction of the compressor impeller is opposite with rotation direction when turbine electricity generation system working rotor；Institute
Stating compressor impeller center and having in threaded hole has locking annular groove, the outer circle for having same connecting bushing mutually to assemble on the compressor impeller
Cylinder；Have the annular end face of coaxial axial thrust bearing cooperation on the composite shaft sleeve, the composite shaft sleeve use with self-lubricating,
Ceramic material wear-resisting and resistant to high temperature, the composite shaft sleeve are assemblied on connecting bushing by inner hole；Described connecting bushing one end
There is the inner cylinder face mutually assembled with compressor impeller, there is the outside cylinder mutually assembled with composite shaft sleeve in one end of the connecting bushing
Face, the other end of the connecting bushing have the external screw thread mutually assembled with transition axle sleeve internal screw thread；Have on the inside of the transition axle sleeve
The internal screw thread mutually assembled with connecting bushing external screw thread has on the outside of the transition axle sleeve and mutually to assemble with motor shaft one end internal screw thread
External screw thread；The motor shaft is made of magnetic core and motor shaft sleeve, and the magnetic core of the motor shaft is located inside motor shaft sleeve, the electricity
There is the internal screw thread mutually assembled with transition axle sleeve in one end of arbor, and the other end of the motor shaft has mutually to be filled with turbine rotor external screw thread
The internal screw thread matched；The radial direction axle sleeve is cirque structure, and the radial direction axle sleeve, which uses, has ceramic material wear-resisting and resistant to high temperature
Material, the radial direction axle sleeve are assemblied on fixed hub by inner hole；The fixing axle is cased with mutually assembles with turbine rotor external screw thread
Internal screw thread, the fixing axle is cased with the external cylindrical surface mutually assembled with radial axle sleeve；The turbine rotor is by turbine wheel and turns
Axis is welded, the external screw thread for having same fixed hub internal screw thread mutually to assemble on the turbine rotor with motor shaft internal screw thread, described
The external screw thread for having same compressor impeller internal thread hole mutually to assemble on turbine rotor has locking annular groove on the turbine rotor, described
There is clamping nut in turbine rotor one end；The retaining ring is located in the locking annular groove of turbine rotor and compressor impeller.
A kind of closed cycle turbine electricity generation system is built-in to lock air floating method for manufacturing rotor, comprising the following steps:
A, it determines that closed cycle turbine electricity generation system is built-in and locks air floating rotor size parameter: according to closed cycle whirlpool
The turbine of electricity generation system, the dimensional parameters of compressor and motor are taken turns, determines that turbine electricity generation system rotor composition components are calmed the anger
Machine impeller, composite shaft sleeve, connects bearing, transition axle sleeve, motor shaft, fixed hub, radial axle sleeve and turbine rotor at retaining ring
Structure size；
B, the assembly screw-down torque of rotor structure is determined: according to the rotor dynamics of closed cycle turbine electricity generation system
With torque delivery request, the built-in locking air floating rotor composition components Screw assembly of closed cycle turbine electricity generation system is determined
Screw-down torque；
C, the manufacture of turbine electricity generation system rotor structure composition components: the turbine generation system determined according to step a is carried out
Rotor of uniting forms the dimensional parameters of components, processes compressor impeller, retaining ring, composite shaft sleeve, connection bearing, transition axis respectively
Set, motor shaft, fixed hub, radial axle sleeve and turbine rotor；
D, the assembly of turbine end radial direction sleeve assembly: by the way of interference fit, by radial axle set assembly in fixing axle
On the external cylindrical surface of set, turbine end radial direction sleeve assembly is formed.
E, the motor shaft magnetic core and motor shaft of processing the assembly of motor shaft magnetic core and motor shaft axle sleeve: will be completed in step c
Axle sleeve is realized the elastic conjunction of motor shaft magnetic core and motor shaft axle sleeve, is made motor shaft magnetic core using heating motor shaft axle sleeve mode
One end is adjacent to axle sleeve inner face, forms complete motor shaft；
F, turbine end radial direction sleeve assembly, motor shaft are with the assembly between turbine rotor: the screwing force determined according to step b
Square is screwed by screw thread, and successively the motor shaft assembly that the step d turbine end radial direction sleeve assembly formed and step e are formed exists
On turbine rotor, and guarantee that end face is mutually adjacent to；
G, transition axle sleeve is with the assembly between motor shaft: the screw-down torque determined according to step b is screwed by screw thread, will
Transition axis set is assemblied on motor shaft, and the magnetic core of the end face and motor shaft that make transition axle sleeve is adjacent to；
H, the assembly of generator terminal of calming the anger composite shaft sleeve component: by the way of interference fit, composite shaft sleeve assembly is being connected
On the external cylindrical surface of axle sleeve, generator terminal composite shaft sleeve component of calming the anger is formed.
I, assembly of generator terminal of the calming the anger composite shaft sleeve component with transition axle sleeve: the Screw assembly screwing force determined according to step b
Square, by step H-shaped at calm the anger generator terminal composite shaft sleeve component and transition axis set is assembled together, and guarantee that end face is mutually adjacent to；
J, assembly of the compressor impeller with generator terminal composite shaft sleeve component, turbine rotor and retaining ring of calming the anger: retaining ring is pacified
On turbine rotor locking annular groove, according to the screw-down torque that step b is determined, by compressor impeller with the screw thread of turbine rotor
Assembly is screwed, compressor impeller is assembled together with calm the anger generator terminal composite shaft sleeve component, turbine rotor and retaining ring, and guarantees
Retaining ring is sprung into compressor impeller locking annular groove, realizes locking.
The beneficial effects of the present invention are:
A kind of built-in locking air floating rotor of closed cycle turbine electricity generation system proposed by the present invention, it is same using motor shaft
The structure that turbine and compressor shaft are integrated avoids the overall stiffness that rotor can be improved using coupler structure, significant to increase
The Stability and dependability of strong turbine electricity generation system rotor operating；Composite shaft sleeve and radial axle sleeve are used with self-lubricating, wear-resisting
With ceramic material resistant to high temperature, air floating bearing and rotor in closed cycle turbine electricity generation system can be greatly reduced and opened
The abrasion loss of rotor contact site, improves the service life of turbine electricity generation system when dynamic and parking；Using locking mechanism, Ke Yiyou
Effect prevents rotor structure from getting loose during the work time, further increases the functional reliability of rotor.
Detailed description of the invention
Fig. 1 is a kind of built-in locking air floating rotor signal of closed cycle turbine electricity generation system described in the embodiment of the present invention
Figure.
Fig. 2 is locking mechanism partial enlargement diagram described in the embodiment of the present invention.
Fig. 3 is compressor impeller structural schematic diagram described in the embodiment of the present invention.
Fig. 4 is composite shaft sleeve structural schematic diagram described in the embodiment of the present invention.
Fig. 5 is connecting bushing structural schematic diagram described in the embodiment of the present invention.
Fig. 6 is transition axle sleeve structure schematic diagram described in the embodiment of the present invention.
Fig. 7 is motor shaft structure schematic diagram described in the embodiment of the present invention.
Fig. 8 is fixed hub structural schematic diagram described in the embodiment of the present invention.
Fig. 9 is turbine rotor structural schematic diagram described in the embodiment of the present invention.
1 compressor impeller, 2 composite shaft sleeve, 3 connecting bushing, 4 transition axle sleeve, 5 motor shaft 6,7 fixed hub of radial axle sleeve
8 turbine rotor, 9 retaining ring, 10 compressor impeller external cylindrical surface, 11 compressor impeller internal screw thread, 12 compressor impeller retaining ring
15 connecting bushing inner cylinder face of slot 13 composite shaft sleeve annular end face, 14 composite shaft sleeve inner hole, 16 connecting bushing external cylindrical surface 17
18 transition axle sleeve external screw thread of connecting bushing external screw thread, 19 20 motor shaft axle sleeve of transition axle sleeve internal screw thread, 21 motor shaft magnetic core 22
23 motor shaft of internal screw thread that motor shaft is matched with turbine rotor external screw thread matches 24 fixing axle of internal screw thread with transition axle sleeve
It covers 25 fixed hub internal screw thread of external cylindrical surface, 26 turbine rotor external screw thread, 27 turbine rotor and compressor impeller assembles external screw thread
28 turbine rotors lock 29 turbine rotor clamping nut of annular groove
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of closed cycle turbine electricity generation system is built-in to lock air floating rotor, including compressor impeller 1, retaining ring 9,
Composite shaft sleeve 2, connection bearing 3, transition axle sleeve 4, motor shaft 5, fixed hub 7, radial axle sleeve 6 and turbine rotor 8.It is described to calm the anger
There is threaded hole 11 at 1 center of machine impeller, rotates when the internal screw thread rotation direction of the compressor impeller 1 is with turbine electricity generation system working rotor
Contrary, 1 center of compressor impeller has in threaded hole and has locking annular groove 12, has on the compressor impeller 1 with connection
The external cylindrical surface 10 that axle sleeve mutually assembles；There is the annular end face 13 of coaxial axial thrust bearing cooperation on the composite shaft sleeve 2, it is described multiple
For sympodium set 2 using having self-lubricating, wear-resisting and resistant to high temperature ceramic material, the composite shaft sleeve 2 passes through 14 company of being assemblied in of inner hole
Spindle is put on；There is the inner cylinder face 15 with the assembly of 1 phase of compressor impeller in one end of the connecting bushing 3, the connecting bushing 3
There is the external cylindrical surface 16 mutually assembled with composite shaft sleeve in one end, and the other end of the connecting bushing 3 has and transition axle sleeve internal screw thread phase
The external screw thread 17 of assembly；There are the internal screw thread 19 mutually assembled with connecting bushing external screw thread, the transition in the inside of the transition axle sleeve 4
There is the external screw thread 18 mutually assembled with motor shaft one end internal screw thread in the outside of axle sleeve 4；The motor shaft 5 is by magnetic core 21 and motor shaft sleeve
20 compositions, the magnetic core 21 of the motor shaft 5 are located inside motor shaft sleeve 20, and one end of the motor shaft 5 has and transition axle sleeve phase
The internal screw thread 23 of assembly, the other end of the motor shaft 5 have the internal screw thread 22 mutually assembled with turbine rotor external screw thread；The radial direction
Axle sleeve 6 is cirque structure, and for the radial direction axle sleeve 6 using having wear-resisting and resistant to high temperature ceramic material, the radial direction axle sleeve 6 is logical
Inner hole is crossed to be assemblied on fixed hub；The fixed hub 7 has the internal screw thread 25 mutually assembled with turbine rotor external screw thread, described solid
Dead axle set 7 has the external cylindrical surface 24 mutually assembled with radial axle sleeve；The turbine rotor 8 is welded by turbine wheel and shaft,
The external screw thread 26 for thering is same fixed hub internal screw thread mutually to assemble on the turbine rotor 8 with motor shaft internal screw thread, the turbine rotor 8
On there is same compressor impeller internal thread hole mutually to assemble external screw thread 27, have locking annular groove 28, the turbine on the turbine rotor 8
There is clamping nut 29 in one end of rotor 8；The retaining ring 9 is located at the locking of the locking annular groove 12 and compressor impeller of turbine rotor
In annular groove 28.
A kind of closed cycle turbine electricity generation system is built-in to lock air floating method for manufacturing rotor, comprising the following steps:
A, it determines that closed cycle turbine electricity generation system is built-in and locks air floating rotor size parameter: according to closed cycle whirlpool
The turbine of electricity generation system, the dimensional parameters of compressor and motor are taken turns, determines that turbine electricity generation system rotor composition components are calmed the anger
Machine impeller 1, retaining ring 9, composite shaft sleeve 2, connection bearing 3, transition axle sleeve 4, motor shaft 5, fixed hub 7, radial axle sleeve 6 and whirlpool
Take turns the structure size of rotor 8；
The turbine wheel diameter of the present embodiment type closed cycle turbine electricity generation system is Ф 90mm, gas compressor blade wheel diameter
It is Ф 38mm for Ф 96mm, motor shaft diameter, direction of rotation when turbine electricity generation system working rotor is dextrorotation, is followed according to enclosed
The dimensional parameters of the turbine wheel of ring turbine electricity generation system, compressor impeller and motor, the internal screw thread of determining compressor impeller 1
11 having a size of M12 × 1-H7H7-LH, and 10 diameter of external cylindrical surface of determining compressor impeller 1 is Ф 20mm, and what is determined is compound
The diameter of the inner cylinder face 14 of axle sleeve 2 is Ф 28mm, and the size of 15 diameter of inner cylinder face of determining connecting bushing 3 is Ф
20mm, 16 diameter of external cylindrical surface size be Ф 28mm, the size of external screw thread 17 is M24 × 1-p6p6-LH, determining transition axis
The internal screw thread 19 of set 4 and the size of external screw thread 18 are respectively M24 × 1-H7H7-LH and M36 × 1-p6p6-LH, determining motor
21 diameter of bore of magnetic core of axis 5 is Ф 14mm, the size of internal screw thread 23 is M36 × 1-H7H7-LH, the size of internal screw thread 22 is
M20 × 1-H7H7-LH, the internal diameter and outer diameter of the radial axle sleeve 6 determined are respectively Ф 28mm and Ф 36mm, determining fixed hub
The size of 7 internal screw thread 25 is M24 × 1-H7H7-LH, and the size of the external screw thread 27 of determining turbine rotor 8 is M12 × 1-
P6p6-LH, external screw thread 26 size be M24 × 1-p6p6-LH.
B, the assembly screw-down torque of rotor structure is determined: according to the rotor dynamics of closed cycle turbine electricity generation system
With torque delivery request, the built-in locking air floating rotor composition components Screw assembly of closed cycle turbine electricity generation system is determined
Screw-down torque；
C, the manufacture of turbine electricity generation system rotor structure composition components: the turbine generation system determined according to step a is carried out
Rotor of uniting forms the dimensional parameters of components, processes compressor impeller, retaining ring, composite shaft sleeve, connection bearing, transition axis respectively
Set, motor shaft, fixed hub, radial axle sleeve and turbine rotor；
D, the assembly of turbine end radial direction sleeve assembly: by the way of interference fit, by radial axle set assembly in fixing axle
On the external cylindrical surface of set, turbine end radial direction sleeve assembly is formed；
E, the motor shaft magnetic core and motor shaft of processing the assembly of motor shaft magnetic core and motor shaft axle sleeve: will be completed in step c
Axle sleeve is realized the elastic conjunction of motor shaft magnetic core and motor shaft axle sleeve, is made motor shaft magnetic core using heating motor shaft axle sleeve mode
One end is adjacent to axle sleeve inner face, forms complete motor shaft；
F, turbine end radial direction sleeve assembly, motor shaft are with the assembly between turbine rotor: the screwing force determined according to step b
Square is screwed by screw thread, and successively the motor shaft assembly that the step d turbine end radial direction sleeve assembly formed and step e are formed exists
On turbine rotor, and guarantee that end face is mutually adjacent to；
G, transition axle sleeve is with the assembly between motor shaft: the screw-down torque determined according to step b is screwed by screw thread, will
Transition axis set is assemblied on motor shaft, and the magnetic core of the end face and motor shaft that make transition axle sleeve is adjacent to；
H, the assembly of generator terminal of calming the anger composite shaft sleeve component: by the way of interference fit, composite shaft sleeve assembly is being connected
On the external cylindrical surface of axle sleeve, generator terminal composite shaft sleeve component of calming the anger is formed；
I, assembly of generator terminal of the calming the anger composite shaft sleeve component with transition axle sleeve: the Screw assembly screwing force determined according to step b
Square, by step H-shaped at calm the anger generator terminal composite shaft sleeve component and transition axis set is assembled together, and guarantee that end face is mutually adjacent to；
J, assembly of the compressor impeller with generator terminal composite shaft sleeve component, turbine rotor and retaining ring of calming the anger: retaining ring is pacified
On turbine rotor locking annular groove, according to the screw-down torque that step b is determined, by compressor impeller with the screw thread of turbine rotor
Assembly is screwed, compressor impeller is assembled together with calm the anger generator terminal composite shaft sleeve component, turbine rotor and retaining ring, and guarantees
Retaining ring is sprung into compressor impeller locking annular groove, realizes locking.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of closed cycle turbine electricity generation system is built-in to lock air floating rotor, it is characterised in that: including compressor impeller
(1), retaining ring (9), composite shaft sleeve (2), connection bearing (3), transition axle sleeve (4), motor shaft (5), fixed hub (7), radial direction
Axle sleeve (6) and turbine rotor (8)；There is the annular end face (13) of coaxial axial thrust bearing cooperation on the composite shaft sleeve (2), it is described
For composite shaft sleeve (2) using having self-lubricating, wear-resisting and resistant to high temperature ceramic material, the composite shaft sleeve (2) passes through inner hole (14)
It is assemblied on connecting bushing；There are the internal screw thread (19) mutually assembled with connecting bushing external screw thread, institute on the inside of the transition axle sleeve (4)
Stating has the external screw thread (18) mutually assembled with motor shaft one end internal screw thread on the outside of transition axle sleeve (4)；The motor shaft (5) is by magnetic core
(21) and motor shaft sleeve (20) composition, the magnetic core (21) of the motor shaft (5) are located at motor shaft sleeve (20) inside, the motor shaft
(5) there is the internal screw thread (23) mutually assembled with transition axle sleeve in one end, and the other end of the motor shaft (5) has and spiral shell outside turbine rotor
The internal screw thread (22) that line mutually assembles；The radial direction axle sleeve (6) is cirque structure, and the radial direction axle sleeve (6) is wear-resisting using having
With ceramic material resistant to high temperature, the radial direction axle sleeve (6) is assemblied on fixed hub by inner hole；The fixed hub (7) has
The internal screw thread (25) mutually assembled with turbine rotor external screw thread, the fixed hub (7) have the outside cylinder mutually assembled with radial axle sleeve
Face (24)；The retaining ring (9) is located in the locking annular groove (12) of turbine rotor and the locking annular groove (28) of compressor impeller.
2. a kind of closed cycle turbine electricity generation system according to claim 1 is built-in to lock air floating rotor, feature
Be: compressor impeller (1) center has threaded hole (11), and the internal screw thread rotation direction and turbine of the compressor impeller (1) are sent out
Rotation direction when electric system working rotor has locking annular groove (12), institute on the contrary, the compressor impeller (1) center has in threaded hole
State the external cylindrical surface (10) for thering is same connecting bushing mutually to assemble on compressor impeller (1).
3. a kind of closed cycle turbine electricity generation system according to claim 1 is built-in to lock air floating rotor, feature
Be: there are the inner cylinder face (15) mutually assembled with compressor impeller (1), the connecting bushing in one end of the connecting bushing (3)
(3) there is the external cylindrical surface (16) mutually assembled with composite shaft sleeve in one end, and the other end of the connecting bushing (3) has and transition axle sleeve
The external screw thread (17) that internal screw thread mutually assembles.
4. a kind of closed cycle turbine electricity generation system according to claim 1 is built-in to lock air floating rotor, feature
Be: the turbine rotor (8) is welded by turbine wheel and shaft, is had in same fixed hub on the turbine rotor (8)
The external screw thread (26) that screw thread is mutually assembled with motor shaft internal screw thread has same compressor impeller internal thread hole on the turbine rotor (8)
The mutually external screw thread (27) of assembly has locking annular groove (28) on the turbine rotor (8), and there is dress in one end of the turbine rotor (8)
It presss from both sides nut (29).
5. a kind of closed cycle turbine electricity generation system according to claim 1 is built-in to lock air floating rotor, one kind is closed
The manufacturing method of the built-in locking air floating rotor of formula circulatory turbine electricity generation system, it is characterised in that: the following steps are included:
A, it determines that closed cycle turbine electricity generation system is built-in and locks air floating rotor size parameter；
B, the assembly screw-down torque of rotor structure is determined；
C, the manufacture of turbine electricity generation system rotor structure composition components is carried out；
D, the assembly of turbine end radial direction sleeve assembly: by the way of interference fit, by radial axle set assembly in fixed hub
On external cylindrical surface, turbine end radial direction sleeve assembly is formed；
E, the assembly of motor shaft magnetic core and motor shaft axle sleeve；
F, turbine end radial direction sleeve assembly, motor shaft are the same as the assembly between turbine rotor；
G, transition axle sleeve is the same as the assembly between motor shaft；
H, the assembly of generator terminal of calming the anger composite shaft sleeve component；
I, assembly of generator terminal of the calming the anger composite shaft sleeve component with transition axle sleeve: the Screw assembly screw-down torque determined according to step b, it will
Step H-shaped at calm the anger generator terminal composite shaft sleeve component and transition axis set is assembled together, and guarantee that end face is mutually adjacent to；
J, assembly of the compressor impeller with generator terminal composite shaft sleeve component, turbine rotor and retaining ring of calming the anger.
6. a kind of closed cycle turbine electricity generation system according to claim 5 is built-in to lock air floating rotor manufacturer
Method, it is characterised in that: in step f, according to the screw-down torque that step b is determined, screwed by screw thread, successively form step d
Turbine end radial direction sleeve assembly and the motor shaft that is formed of step e be assemblied on turbine rotor, and guarantee that end face is mutually adjacent to.
7. a kind of closed cycle turbine electricity generation system according to claim 5 is built-in to lock air floating rotor manufacturer
Method, it is characterised in that: in step g: the screw-down torque determined according to step b is screwed by screw thread, and transition axis set assembly is existed
On motor shaft, the magnetic core of the end face and motor shaft that make transition axle sleeve is adjacent to.
8. a kind of closed cycle turbine electricity generation system according to claim 5 is built-in to lock air floating rotor manufacturer
Method, it is characterised in that: in step h: by the way of interference fit, composite shaft sleeve is assembled into the external cylindrical surface in connecting bushing
On, form generator terminal composite shaft sleeve component of calming the anger.
9. a kind of closed cycle turbine electricity generation system according to claim 5 is built-in to lock air floating rotor manufacturer
Method, it is characterised in that: in step j: retaining ring is mounted on turbine rotor locking annular groove, is tightened according to what step b was determined
Torque screws assembly with the screw thread of turbine rotor by compressor impeller, by compressor impeller with generator terminal composite shaft sleeve group of calming the anger
Part, turbine rotor and retaining ring are assembled together, and guarantee that retaining ring is sprung into compressor impeller locking annular groove, realize lock
Tightly.
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| CN201910647952.5A CN110332019B (en) | 2019-07-18 | 2019-07-18 | Built-in locking gas floating rotor of closed circulation turbine power generation system |
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| CN201910647952.5A CN110332019B (en) | 2019-07-18 | 2019-07-18 | Built-in locking gas floating rotor of closed circulation turbine power generation system |
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| CN110332019A true CN110332019A (en) | 2019-10-15 |
| CN110332019B CN110332019B (en) | 2022-07-05 |
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| CN110332019B (en) | 2022-07-05 |
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