CN110360148A - A kind of turbine thermoelectric conversion system threaded connection rotor structure - Google Patents

A kind of turbine thermoelectric conversion system threaded connection rotor structure Download PDF

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Publication number
CN110360148A
CN110360148A CN201910647940.2A CN201910647940A CN110360148A CN 110360148 A CN110360148 A CN 110360148A CN 201910647940 A CN201910647940 A CN 201910647940A CN 110360148 A CN110360148 A CN 110360148A
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turbine
shaft
axle sleeve
assembly
motor shaft
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CN201910647940.2A
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CN110360148B (en
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王正
马同玲
侯泽兵
吴小翠
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Beijing Power Machinery Institute
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Beijing Power Machinery Institute
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02Blade-carrying members, e.g. rotors
    • F01D5/026Shaft to shaft connections
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/266Rotors specially for elastic fluids mounting compressor rotors on shafts
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/003Couplings; Details of shafts

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Rotor structure is threadedly coupled the present invention relates to a kind of turbine thermoelectric conversion system and manufacturing method, the rotor structure are assembled by compressor impeller, retaining ring, axle sleeve, motor shaft and turbine shaft.It is connected between the compressor impeller, retaining ring, axle sleeve, motor shaft and turbine shaft using Screw assembly structure.On the basis of completing rotor composition parts machining, the assembly of motor shaft is carried out first, secondly the assembly of motor shaft and turbine shaft is carried out, then the assembly between axle sleeve, motor shaft and turbine shaft is carried out, the assembly between compressor impeller, axle sleeve, turbine shaft and retaining ring is finally carried out, complete rotor structure is formed.Screw assembly connection structure is used between the composition components of the rotor, it can effectively improve the bonding strength and rigidity of rotor, it prevents from the rotor of turbine thermoelectric conversion system from forming components to get loose during the work time, helps to improve the run stability of rotor and the functional reliability of system.

Description

A kind of turbine thermoelectric conversion system threaded connection rotor structure
Technical field
The invention belongs to closed cycle turbine thermoelectric conversion system field of structural design, and in particular to a kind of turbine thermoelectricity turn It changes system and is threadedly coupled rotor structure.
Background technique
Closed cycle turbine thermoelectric conversion system, can be by certain gas as a kind of new and effective heating power reformulations Body working medium realizes thermal energy to electric energy under enclosed environment by absorbing the thermal processions such as heat, expansion work, heat release and compression Conversion.Typical closed cycle turbine thermoelectric conversion system is mainly made of components such as turbine, compressor, motor, regenerators.
Closed cycle turbine thermoelectric conversion system rotor includes turbine and compressor impeller rotor and generator amature two Point, it is the component of core the most in system, the stable operation of system, overall efficiency, reliability and service life is played decisive Effect.During operation, rotor is in high speed rotation state to closed cycle turbine thermoelectric conversion system, and revolving speed is up to several Ten thousand revs/min or ten tens of thousands of revs/min, rotor structure once breaks down, and the system of not only resulting in can not work normally, but also meeting Cause the structural failure of closed cycle turbine thermoelectric conversion system.Therefore, rotor structure is rationally designed for guaranteeing shrouded turbine The run stability of thermoelectric conversion system and structural reliability are most important.
Existing closed cycle radial turbine thermoelectric conversion system rotor mainly include turbine, main shaft, compressor impeller, The components such as motor shaft, shaft coupling realize that turbine and compressor impeller rotor turn with motor by elastic conjunction by shaft coupling Connection between son, specifically: main shaft carries on the back boss and compressor impeller wheel back with turbine rotor wheel respectively by its both ends inner hole Boss interference is joined together to form power shaft, then with motor shaft one end and is calmed the anger respectively by the both ends inner hole of shaft coupling Elastic conjunction between the wheel hub of machine impeller inlet end, power shaft and motor shaft are linked together, complete rotor is formed.It is existing There is rotor structure using interference connection type, although can guarantee the concentricity between each component of rotor to a certain extent, It is to add since rotor interference bonding strength depends on the fitted position and its tolerance between each components to component assembly position Work precision proposes very high request;In addition the practical magnitude of interference of rotor connecting portion during the work time can reduce, and reduce rotor Bonding strength, components, which are also easy to produce, to be loosened, and the reliability of closed cycle turbine thermoelectric conversion system is directly affected;In addition, this The repeatable assembling of class rotor is poor.
For closed cycle radial turbine thermoelectric conversion system to the high reliability and long life requirement of rotor structure, need The composition components of rotor and the assembling structure and technological parameter of components are rationally designed, guarantees that the connection of rotor structure is strong Degree and functional reliability.
Summary of the invention
The present invention is directed to closed cycle turbine thermoelectric conversion system rotor structure, proposes a kind of turbine thermoelectric conversion system spiral shell Line connects rotor structure.According to the dimensional parameters of the turbine of closed cycle turbine thermoelectric conversion system, compressor and motor, pass through Rationally design compressor impeller, retaining ring, the structure size and Screw assembly torque of axle sleeve, motor shaft and turbine shaft.? On the basis of completing parts and components of rotor processing, secondly progress motor shaft assembly first carries out the assembly of motor shaft and turbine shaft, Then the assembly between axle sleeve, motor shaft and turbine shaft finally carries out compressor impeller, axle sleeve, turbine shaft and retaining ring Assembly, form complete rotor structure.The rotor, which forms, uses Screw assembly and locking mechanism between components, can be effective The bonding strength for improving rotor, prevents the parts and components of rotor of turbine thermoelectric conversion system from getting loose during the work time, helps In the run stability and structural reliability of the system of raising.
Technical solution of the present invention:
A kind of turbine thermoelectric conversion system threaded connection rotor structure, including compressor impeller, retaining ring, axle sleeve, motor Axis and turbine shaft.There are the threaded hole of same turbine shaft assembly, the threaded hole of the compressor impeller on the compressor impeller Internal screw thread rotation direction it is identical as rotation direction when turbine electricity generation system working rotor, have coaxial package on the compressor impeller The external cylindrical surface matched has the locking annular groove with retaining ring assembly, the inlet end of the compressor impeller on the compressor impeller Equipped with clamping nut;The retaining ring is elastic opening ring, and the retaining ring is assemblied in the lock of turbine shaft and compressor impeller In tight annular groove;There are the annular Thrust Faces of coaxial bearing fit on the axle sleeve, there is same transverse bearing to cooperate on the axle sleeve External cylindrical surface, there are the inner cylinder face and through-hole assembled respectively with compressor impeller and turbine shaft, institute in one end of the axle sleeve The other end for stating axle sleeve has the inner cylinder face and threaded hole assembled respectively with motor shaft short sleeve and turbine shaft;The motor shaft It is made of magnetic core, long axle sleeve and short sleeve, the magnetic core of the motor shaft is located at the inside of long axle sleeve and short sleeve, the motor shaft Long axle sleeve and short sleeve be linked and packed together by interference, one end of the long axle sleeve of the motor shaft has and turbine shaft phase The threaded hole of assembly, one end of the short sleeve of the motor shaft have the external cylindrical surface that coaxial sleeve and turbine shaft mutually assemble respectively and Threaded hole;The turbine shaft is welded together by turbine wheel and shaft, has same compressor impeller to fill in the turbine shaft The external screw thread matched has the locking annular groove of same retaining ring assembly in the turbine shaft, has coaxial package to match in the turbine shaft Optical axis, have the external screw thread of coaxial sleeve and the assembly of motor shaft short sleeve in the turbine shaft, have in the turbine shaft with electricity Arbor long axis covers the external screw thread of assembly, there is the external cylindrical surface of same transverse bearing assembly, the turbine shaft in the turbine shaft It is equipped with loss of weight cavity, the turbine shaft is equipped with clamping nut.
A kind of turbine thermoelectric conversion system threaded connection method for manufacturing rotor, comprising the following steps:
A, the parameters of structural dimension of turbine thermoelectric conversion system rotor is determined: according to closed cycle turbine thermoelectric conversion system Turbine, compressor and motor dimensional parameters, determine rotor form components i.e. compressor impeller, retaining ring, axle sleeve, motor The parameters of structural dimension of axis and turbine shaft;
B, the Screw assembly torque between rotor composition components is determined: according to closed cycle turbine thermoelectric conversion system Rotor structure size, kinetic characteristics and running parameter determine turbine thermoelectric conversion system rotor set at the spiral shell between components Line assembles torque;
C, turbine thermoelectric conversion system rotor set is carried out into the manufacture of components: being turned according to the turbine thermoelectricity that step a is determined The parameters of structural dimension of system rotor composition components is changed, processing compressor impeller, retaining ring, axle sleeve, motor shaft and turbine turn Axis;
D, it carries out the assembly of motor shaft: taking elastic conjunction mode first, by heating the long axle sleeve of motor shaft, by motor Magnetic core be assembled together with long axis set, then take elastic conjunction mode, by heat motor shaft short sleeve, by short sleeve It is assembled together with magnetic core, long axis set, forms complete motor shaft;
E, it carries out the assembly between motor shaft and turbine shaft: turbine shaft being passed through into motor shaft centre bore, according to step b Determining Screw assembly torque, is screwed by screw thread, motor shaft and turbine shaft is assembled together, and guarantees that counterface is mutual It is adjacent to;
F, it carries out the assembly between axle sleeve, motor shaft and turbine shaft: the optical axis of turbine shaft is passed through to the through-hole of axle sleeve, According to Screw assembly torque determined by step b, revolved by the threaded hole of axle sleeve with the screw thread between the external screw thread of turbine shaft Assembly between the inner cylinder face of tight and motor shaft short sleeve external cylindrical surface coaxial sleeve, axle sleeve, motor shaft and turbine are turned Axis is assembled together, and guarantees that counterface is adjacent to;
G, retaining ring the assembly between compressor impeller, axle sleeve, turbine shaft and retaining ring: is placed in the lock of turbine shaft In tight annular groove, then the external cylindrical surface of compressor impeller is aligned and is assembled with the inner cylinder face of axle sleeve, then according to step b institute Determining Screw assembly torque screws assembly by screw thread, and the assembly of compressor impeller, axle sleeve, turbine shaft and retaining ring is existed Together, it is placed in retaining ring in the locking annular groove of compressor impeller, guarantees that counterface is mutually adjacent to.
The beneficial effects of the present invention are:
A kind of turbine thermoelectric conversion system threaded connection rotor structure proposed by the present invention and its manufacturing method, the zero of rotor Screw assembly structure is used between component, be can effectively improve the bonding strength of rotor, is prevented turbine thermoelectric conversion system rotor Components are got loose during the work time, improve the structural reliability of system;Using the same motor of the shaft of turbine and compressor The coaxial configuration of axis designs, and avoids the overall stiffness that rotor can be improved using shaft coupling, while reducing the space ruler of rotor It is very little;Turbine shaft is equipped with loss of weight cavity, can reduce the quality and rotary inertia of rotor, and the operating for improving rotor and bearing is stablized Property and functional reliability;Screw connection structure is locked using retaining ring, it is possible to prevente effectively from rotor loosens, into one Step improves the structural reliability of rotor and turbine thermoelectric conversion system.
Detailed description of the invention
Fig. 1 is a kind of turbine thermoelectric conversion system threaded connection rotor structure schematic diagram described in the embodiment of the present invention.
Fig. 2 is retaining ring described in the embodiment of the present invention and its installation position structural schematic diagram.
Fig. 3 is compressor impeller structural schematic diagram described in the embodiment of the present invention.
Fig. 4 is axle sleeve structure schematic diagram described in the embodiment of the present invention.
Fig. 5 is motor shaft structure schematic diagram described in the embodiment of the present invention.
Fig. 6 is turbine shaft structural schematic diagram described in the embodiment of the present invention.
1 compressor impeller, 2 retaining ring, 3 axle sleeve, 4 motor shaft, 5 turbine shaft
6 compressor impeller clamping nut, 7 compressor impeller threaded hole, 8 compressor impeller external cylindrical surface
The inner cylinder face of locking 10 axle sleeve of annular groove and the compressor impeller assembly of 9 compressor impellers
12 axle sleeve through-hole of annular Thrust Faces, 13 axle sleeve and transverse bearing of 11 axle sleeves assemble external cylindrical surface
The inner cylinder face of 15 axle sleeve of threaded hole and the assembly of motor shaft short sleeve of 14 axle sleeves and motor shaft assembly
Long 17 motor shaft short sleeve of axle sleeve, the 18 motor shaft magnetic core of 16 motor shafts
The threaded hole that 19 motor shafts are matched with 20 motor shaft of external cylindrical surface that axle sleeve mutually assembles with turbine shaft
The threaded hole that 21 motor shafts are matched with turbine shaft
The locking annular groove of 22 turbine shafts and 23 turbine shaft of external screw thread of compressor impeller assembly
The external screw thread of the 25 turbine shaft coaxial sleeve of optical axis and motor shaft assembly of 24 turbine shafts and axle sleeve assembly
The external screw thread that 26 turbine shafts are assembled with motor shaft
The loss of weight cavity of 27 turbine shafts and 28 turbine shaft of external cylindrical surface of transverse bearing assembly
The clamping nut of 29 turbine shafts
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 turbine thermoelectric conversion system threaded connection rotor structure, including compressor impeller 1, retaining ring 2, axle sleeve 3, electricity Arbor 4 and turbine shaft 5.There is the threaded hole 7 of same turbine shaft assembly on the compressor impeller 1, the compressor impeller 1 The internal screw thread rotation direction of threaded hole 7 is identical as rotation direction when turbine electricity generation system working rotor, has on the compressor impeller 1 The external cylindrical surface 8 that coaxial package is matched has the locking annular groove 9 with retaining ring assembly, the gas compressor blade on the compressor impeller 1 The inlet end of wheel 1 is equipped with clamping nut 6;The retaining ring 2 be elastic opening ring, the retaining ring 2 be assemblied in turbine shaft and In the locking annular groove of compressor impeller;There are the annular Thrust Faces 11 of coaxial bearing fit, the axle sleeve 3 on the axle sleeve 3 On have the external cylindrical surface 13 of same transverse bearing cooperation, one end of the axle sleeve 3 has to be filled with compressor impeller and turbine shaft respectively The inner cylinder face 10 and through-hole 12 matched, the other end of the axle sleeve 3, which has, respectively to be assembled with motor shaft short sleeve and turbine shaft Inner cylinder face 15 and threaded hole 14;The motor shaft 4 is made of magnetic core 18, long axle sleeve 16 and short sleeve 17, the motor shaft 4 Magnetic core 18 is located at the inside of long axle sleeve 16 and short sleeve 17, and the long axle sleeve 16 and short sleeve 17 of the motor shaft 4 are connected by interference It connects and is assembled together, there are the threaded hole 21 mutually assembled with turbine shaft, the motor in one end of the long axle sleeve 16 of the motor shaft 4 There are the external cylindrical surface 19 and threaded hole 20 that coaxial sleeve is mutually assembled with turbine shaft respectively in one end of the short sleeve 17 of axis 4;The whirlpool Wheel shaft 5 is welded together by turbine wheel and shaft, there is the external screw thread of same compressor impeller assembly in the turbine shaft 5 22, there is the locking annular groove 23 of same retaining ring assembly in the turbine shaft 5, has the light that coaxial package is matched in the turbine shaft 5 Axis 24 has the external screw thread 25 of coaxial sleeve and the assembly of motor shaft short sleeve in the turbine shaft 5, has in the turbine shaft 5 same Motor shaft long axis covers the external screw thread 26 of assembly, there is the external cylindrical surface 27 of same transverse bearing assembly, the whirlpool in the turbine shaft 5 It takes turns shaft and is equipped with loss of weight cavity 28, the turbine shaft is equipped with clamping nut 29.
A kind of turbine thermoelectric conversion system threaded connection method for manufacturing rotor, comprising the following steps:
A, the parameters of structural dimension of turbine thermoelectric conversion system rotor is determined: according to closed cycle turbine thermoelectric conversion system Turbine, compressor and motor dimensional parameters, determine rotor form components i.e. compressor impeller, retaining ring, axle sleeve, motor The parameters of structural dimension of axis and turbine shaft;
The turbine wheel diameter of the present embodiment type closed cycle turbine thermoelectric conversion system is Ф 90mm, compressor impeller Diameter is Ф 96mm, motor shaft diameter is Ф 38mm, according to the turbine wheel of closed cycle turbine thermoelectric conversion system, compressor The threaded hole of the dimensional parameters of impeller and motor, determining compressor impeller 1 is having a size of the size of M12 × 1, external cylindrical surface 8 Ф 20mm, the size of the inner cylinder face 10 of determining axle sleeve 3 is Ф 20mm, the size of external cylindrical surface 13 is Ф 38mm, interior cylinder The size in face 15 is Ф 28mm, the diameter of through-hole 12 is Ф 12mm, the size of threaded hole 14 is M14 × 1, determining motor shaft 4 Threaded hole 20 size be M14 × 1, threaded hole 21 size be M20 × 1, the ruler of the external screw thread 22 of determining turbine shaft 5 It is very little be M12 × 1, optical axis 24 size be Ф 12mm, the size of external screw thread 25 be M14 × 1, external screw thread 26 size be M20 × 1。
B, the Screw assembly torque between rotor composition components is determined: according to closed cycle turbine thermoelectric conversion system Rotor structure size, kinetic characteristics and running parameter determine turbine thermoelectric conversion system rotor set at the spiral shell between components Line assembles torque;
C, turbine thermoelectric conversion system rotor set is carried out into the manufacture of components: being turned according to the turbine thermoelectricity that step a is determined The parameters of structural dimension of system rotor composition components is changed, processing compressor impeller, retaining ring, axle sleeve, motor shaft and turbine turn Axis;
D, it carries out the assembly of motor shaft: taking elastic conjunction mode first, it, will be electric by heating the long axle sleeve 16 of motor shaft The magnetic core 18 of machine is assembled together with long axle sleeve 16, then takes elastic conjunction mode, by heating the short sleeve 17 of motor shaft, Short sleeve 17 and magnetic core 18, long axle sleeve 16 are assembled together, complete motor shaft 4 is formed;
E, it carries out the assembly between motor shaft and turbine shaft: turbine shaft 5 is passed through to the centre bore of motor shaft 4, according to The Screw assembly torque that step b is determined, is screwed by screw thread, motor shaft 4 and turbine shaft 5 is assembled together, and guarantees cooperation End face is mutually adjacent to;
F, it carries out the assembly between axle sleeve, motor shaft and turbine shaft: the optical axis 24 of turbine shaft is passed through into the logical of axle sleeve Hole 12, according to Screw assembly torque determined by step b, by the threaded hole 14 of axle sleeve between the external screw thread 25 of turbine shaft Screw thread screw and the inner cylinder face 15 of 19 coaxial sleeve of external cylindrical surface of motor shaft short sleeve between assembly, by axle sleeve 3, electricity Arbor 4 and turbine shaft 5 are assembled together, and guarantee that counterface is adjacent to;
G, retaining ring 2 assembly between compressor impeller, axle sleeve, turbine shaft and retaining ring: is placed in turbine shaft Lock annular groove 23 in, then the external cylindrical surface of compressor impeller 8 is aligned and is assembled with the inner cylinder face 10 of axle sleeve, then according to Screw assembly torque determined by step b screws assembly by screw thread, by compressor impeller 1, axle sleeve 3, turbine shaft 5 and lock Tight ring 2 is assembled together, and is placed in retaining ring 2 in the locking annular groove 9 of compressor impeller, guarantees that counterface is mutually adjacent to.
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 (7)

1. a kind of turbine thermoelectric conversion system is threadedly coupled rotor structure, it is characterised in that: including compressor impeller (1), locking Ring (2), axle sleeve (3), motor shaft (4) and turbine shaft (5).There is the spiral shell of same turbine shaft assembly on the compressor impeller (1) Pit (7), the internal screw thread rotation direction of the threaded hole (7) of the compressor impeller (1) turn with when turbine electricity generation system working rotor Dynamic direction is identical, the external cylindrical surface (8) for having coaxial package to match on the compressor impeller (1), has on the compressor impeller (1) Clamping nut (6) are equipped with the inlet end of the locking annular groove (9) of retaining ring assembly, the compressor impeller (1);The retaining ring It (2) is elastic opening ring, the retaining ring (2) is assemblied in the locking annular groove of turbine shaft and compressor impeller.
2. a kind of turbine thermoelectric conversion system according to claim 1 is threadedly coupled rotor structure, it is characterised in that: described There are the annular Thrust Faces (11) of coaxial bearing fit on axle sleeve (3), there is the outer of same transverse bearing cooperation on the axle sleeve (3) Cylindrical surface (13), one end of the axle sleeve (3) have the inner cylinder face (10) assembled respectively with compressor impeller and turbine shaft and Through-hole (12), the other end of the axle sleeve (3) have the inner cylinder face (15) assembled respectively with motor shaft short sleeve and turbine shaft With threaded hole (14).
3. a kind of turbine thermoelectric conversion system according to claim 1 is threadedly coupled rotor structure, it is characterised in that: described Motor shaft (4) is made of magnetic core (18), long axle sleeve (16) and short sleeve (17), and the magnetic core (18) of the motor shaft (4) is located at length The long axle sleeve (16) of the inside of axle sleeve (16) and short sleeve (17), the motor shaft (4) is connect with short sleeve (17) by interference It is assembled together, there is the threaded hole (21) mutually assembled with turbine shaft in one end of the long axle sleeve (16) of the motor shaft (4), described There are the external cylindrical surface (19) and threaded hole that coaxial sleeve is mutually assembled with turbine shaft respectively in one end of the short sleeve (17) of motor shaft (4) (20)。
4. a kind of turbine thermoelectric conversion system according to claim 1 is threadedly coupled rotor structure, it is characterised in that: described Turbine shaft (5) is welded together by turbine wheel and shaft, there is the outer of same compressor impeller assembly on the turbine shaft (5) Screw thread (22) has the locking annular groove (23) of same retaining ring assembly on the turbine shaft (5), has on the turbine shaft (5) same The optical axis (24) of axle sleeve assembly has the external screw thread (25) of coaxial sleeve and the assembly of motor shaft short sleeve, institute on the turbine shaft (5) The external screw thread (26) for having same motor shaft long axis set assembly on turbine shaft (5) is stated, has same transverse bearing on the turbine shaft (5) The external cylindrical surface (27) of assembly, the turbine shaft are equipped with loss of weight cavity (28), and the turbine shaft is equipped with clamping nut (29)。
5. a kind of turbine thermoelectric conversion system according to claim 1 is threadedly coupled rotor structure, a kind of turbine thermoelectricity turn Change the manufacturing method that system is threadedly coupled rotor, it is characterised in that: the following steps are included:
A, the parameters of structural dimension of turbine thermoelectric conversion system rotor is determined;
B, the Screw assembly torque between rotor composition components is determined;
C, turbine thermoelectric conversion system rotor set is carried out into the manufacture of components;
D, it carries out the assembly of motor shaft: taking elastic conjunction mode first, by heating the long axle sleeve (16) of motor shaft, by motor Magnetic core (18) be assembled together with long axle sleeve (16), then take elastic conjunction mode, pass through heating motor shaft short sleeve (17), short sleeve (17) and magnetic core (18), long axle sleeve (16) are assembled together, form complete motor shaft (4);
E, it carries out the assembly between motor shaft and turbine shaft: turbine shaft (5) is passed through to the centre bore of motor shaft (4), according to The Screw assembly torque that step b is determined, is screwed by screw thread, motor shaft (4) and turbine shaft (5) is assembled together, and is guaranteed Counterface is mutually adjacent to;
F, the assembly between axle sleeve, motor shaft and turbine shaft is carried out;
G, the assembly between compressor impeller, axle sleeve, turbine shaft and retaining ring.
6. a kind of turbine thermoelectric conversion system according to claim 5 is threadedly coupled the manufacturing method of rotor, feature exists In: in step f, the optical axis (24) of turbine shaft is passed through to the through-hole (12) of axle sleeve, according to Screw assembly determined by step b Torque, is screwed by the threaded hole (14) of axle sleeve with the screw thread between the external screw thread (25) of turbine shaft and motor shaft short sleeve External cylindrical surface (19) coaxial sleeve inner cylinder face (15) between assembly, by axle sleeve (3), motor shaft (4) and turbine shaft (5) It is assembled together, guarantees that counterface is adjacent to.
7. a kind of turbine thermoelectric conversion system according to claim 5 is threadedly coupled the manufacturing method of rotor, feature exists In: in step g, retaining ring (2) is placed in the locking annular groove (23) of turbine shaft, then by the outside cylinder of compressor impeller Face (8) is aligned and assembles with the inner cylinder face (10) of axle sleeve, then according to Screw assembly torque determined by step b, passes through spiral shell Line screws assembly, and compressor impeller (1), axle sleeve (3), turbine shaft (5) and retaining ring (2) are assembled together, retaining ring is made (2) it is placed in the locking annular groove (9) of compressor impeller, guarantees that counterface is mutually adjacent to.
CN201910647940.2A 2019-07-18 2019-07-18 Threaded connection rotor structure of turbine thermoelectric conversion system Active CN110360148B (en)

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Publication number Priority date Publication date Assignee Title
CN112360570A (en) * 2020-10-26 2021-02-12 北京动力机械研究所 Runoff impeller side-mounted high-speed thermoelectric conversion system rotating shaft and process thereof
CN112360577A (en) * 2020-10-26 2021-02-12 北京动力机械研究所 Rotor structure and process of combined impeller power generation system
CN112360576A (en) * 2020-10-26 2021-02-12 北京动力机械研究所 Integrated impeller side-mounted thermoelectric conversion system rotating shaft structure
CN114776386A (en) * 2022-04-29 2022-07-22 中国北方发动机研究所(天津) Cone connecting structure of titanium-aluminum turbine and rotating shaft

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CN106988784A (en) * 2017-03-24 2017-07-28 中国北方发动机研究所(天津) A kind of radial-flow type rotating shaft of supercharger turbine structure and its moulding process
CN109630211A (en) * 2018-11-30 2019-04-16 北京精密机电控制设备研究所 A kind of highway turbine power generation pressurization all-in-one machine

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CN105637196A (en) * 2013-10-25 2016-06-01 艾克莫特公司 Retention of a rotor of an electronically-controlled turbomachine
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CN112360570A (en) * 2020-10-26 2021-02-12 北京动力机械研究所 Runoff impeller side-mounted high-speed thermoelectric conversion system rotating shaft and process thereof
CN112360577A (en) * 2020-10-26 2021-02-12 北京动力机械研究所 Rotor structure and process of combined impeller power generation system
CN112360576A (en) * 2020-10-26 2021-02-12 北京动力机械研究所 Integrated impeller side-mounted thermoelectric conversion system rotating shaft structure
CN112360576B (en) * 2020-10-26 2022-08-09 北京动力机械研究所 Integrated impeller side-mounted thermoelectric conversion system rotating shaft structure
CN112360577B (en) * 2020-10-26 2023-05-12 北京动力机械研究所 Rotor structure and process of combined impeller power generation system
CN114776386A (en) * 2022-04-29 2022-07-22 中国北方发动机研究所(天津) Cone connecting structure of titanium-aluminum turbine and rotating shaft
CN114776386B (en) * 2022-04-29 2023-05-19 中国北方发动机研究所(天津) Cone connection structure of titanium aluminum turbine and rotating shaft

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