CN102130570A - High-temperature superconducting motor with axial cold contraction compensation mechanism - Google Patents
High-temperature superconducting motor with axial cold contraction compensation mechanism Download PDFInfo
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- CN102130570A CN102130570A CN2011100649649A CN201110064964A CN102130570A CN 102130570 A CN102130570 A CN 102130570A CN 2011100649649 A CN2011100649649 A CN 2011100649649A CN 201110064964 A CN201110064964 A CN 201110064964A CN 102130570 A CN102130570 A CN 102130570A
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Abstract
The invention relates to a high-temperature superconducting motor with an axial cold contraction compensation mechanism. The high-temperature superconducting motor comprises a stator and a rotor; the rotor comprises a barrel-shaped external rotor, a motor shaft disc and the axial cold contraction compensation mechanism which comprises a compensation shrapnel; the external rotor is provided with an external rotor driving shaft; the motor shaft disc is provided with a motor shaft disc external shaft and a conical motor shaft disc internal shaft; a transitional shaft of which the shaft hole is conical is fixed on the end face of a first torque pipe; the transitional shaft is matched with the taper of the motor shaft disc internal shaft; and the axial lines of the motor shaft disc external shaft, the motor shaft disc internal shaft, the transitional shaft, a magnetic bracket and the external rotor driving shaft are overlapped, namely the motor shaft disc external shaft, the motor shaft disc internal shaft, the transitional shaft, the magnetic bracket and the external rotor driving shaft are coaxial. The high-temperature superconducting motor with the axial cold contraction compensation mechanism has the advantages that: aims of guaranteeing the coaxiality of the motor and compensating axially can be fulfilled; as a bolt is used for transmitting a torque, the processing precision and the processing complexity are reduced; the axial cold contraction compensation mechanism which comprises the compensation shrapnel is arranged at the non-driving end of the motor, so higher safety and higher reliability can be guaranteed.
Description
Technical field
The present invention relates to a kind of high-temperature superconducting motor, belong to motor and mechanical coupling technical field with axial shrinkage compensation mechanism.
Background technology
At present, in high-temperature superconducting motor, the magnet of internal rotor is worked at low temperatures, and the rotor screen is worked at normal temperatures, whole rotor reduces to leak heat by vacuum interlayer, and cryogenic magnet also is to connect to reduce to leak heat by heat insulating member with being connected of normal temperature rotor part.Because normal temperature can cause the contraction of parts different with the temperature difference of low temperature part, their physical dimension has just lost the adaptability that was had when originally all being in the normal temperature attitude, need carry out structure compensation to the variable quantity of physical dimension, in order to avoid excessive mechanical stress causes the destruction of structural member.
In the U.S. Pat 4092555, provide a kind of slip collocation structure mode, this frame mode complex structure, the requirement on machining accuracy height is implemented comparatively difficulty.
In the U.S. Pat 4237392, a kind of axial shrinkage compensation mechanism is provided, adopt keyway to cooperate transfer torque, lamination is made up of a plurality of flat, thin slices, be placed on the work of motor-driven end, this structure has compact conformation, simplicity of design, through engineering approaches degree advantages of higher, but keyway cooperates requirement on machining accuracy compensation rate higher, that lamination is plain film is less, to be placed on drive end bigger for the load burden of material.Particularly be subjected under bigger vibration, the impact condition, the moderate finite deformation of shell fragment can cause that the internal rotor and the axiality of end axle produce bigger variation.
In the U.S. Pat 4291997, provide a kind of elastic compensating version, this version adopts the elastic plate structure, satisfies the requirement of nose balance by the distortion of elastic plate.This scheme is that modulus of elasticity is had relatively high expectations to the intensity of the material of elastic plate own, and structure and processing are comparatively complicated simultaneously.
Summary of the invention
The object of the invention is, overcomes the shortcoming of prior art, and a kind of high-temperature superconducting motor with axial shrinkage compensation mechanism is provided, and takes flexure strip and the mode that the compensation that endwisely slips combines, and reaches the purpose of nose balance when guaranteeing the motor coaxle degree; Come transfer torque by bolt, reduced machining accuracy and complexity; Axially the shrinkage compensation mechanism is placed in the motor anti-drive end, guarantees higher fail safe and reliability.
Technical scheme of the present invention is: a kind of high-temperature superconducting motor with axial shrinkage compensation mechanism, and it comprises stator, rotor; Described rotor comprises: a tubular external rotor, a motor reel that is fixed on external rotor one end, also have an axial shrinkage compensation mechanism that is fixed on the magnet carrier in the external rotor inner chamber and includes the compensation shell fragment, there is the external rotor driving shaft end outer end that external rotor is relative with the motor reel; There is a motor reel outer shaft at the described motor reel middle part outside side of rotor internal cavity outwardly, and rotor internal cavity one side has the interior axle of motor reel of a taper outwardly; Magnet carrier one end with magnet is fixedly connected with the second moment pipe, and fixedly connected with the external rotor driving shaft by this second moment pipe, the magnet carrier other end is fixed with the first moment pipe, and the compensation shell fragment that passes through to fix on this first moment pipe end face is fixedlyed connected with the outward flange of motor reel, also fix a transition axis on the first moment pipe end face, this transition axis axis hole is a taper hole, is complementary with axial cone degree in the motor reel, is used to keep the gap to slide; Axle, transition axis, magnet carrier and external rotor drive axis overlap in described motor reel outer shaft, the motor reel, and be promptly coaxial.
Above-mentioned high-temperature superconducting motor with axial shrinkage compensation mechanism, a fixing transition axis on axle, first moment pipe (6) end face in the motor reel of the fixedly connected compensation shell fragment of the outward flange that its axial shrinkage compensation mechanism comprises the motor reel, taper, this transition axis axis hole is a taper hole, be complementary with axial cone degree in the motor reel, the first moment pipe is overlapping with compensation shell fragment and transition axis stationary plane, is an integral body with bolt.
The above-mentioned high-temperature superconducting motor with axial shrinkage compensation mechanism, its compensation shell fragment is fixedly connected with the outward flange of motor reel to be that bolt is connected.
The above-mentioned high-temperature superconducting motor with axial shrinkage compensation mechanism, its second moment pipe is fixedly connected with the external rotor driving shaft to be that bolt is connected.
Above-mentioned high-temperature superconducting motor with axial shrinkage compensation mechanism, its compensation shell fragment is 1, or at least two are formed compensation shell fragment group; Being shaped as of compensation shell fragment is round plate shaped or dish-shaped, and mid portion is a through hole; All have bolt hole and the pin-and-hole that is used for fixing and locatees on compensation shell fragment outward flange and the compensation shell fragment inward flange.
The above-mentioned high-temperature superconducting motor with axial shrinkage compensation mechanism between the adjacent compensation shell fragment of its compensation shell fragment group, is all placed the thin type pad at compensation shell fragment outward flange and compensation shell fragment inside edge.
Above-mentioned high-temperature superconducting motor with axial shrinkage compensation mechanism, its compensation shell fragment is fixedlyed connected with the outward flange of motor reel by the fixing hole on the compensation shell fragment outward flange; The outer shaft of motor reel is an external rotor anti-drive end end axle; The compensation shell fragment is connected with the first moment pipe by the fixing hole on the compensation shell fragment inward flange, and this first moment pipe other end is connected with low temperature parts magnet carrier.
Leave positioning spigot on the axle in the above-mentioned high-temperature superconducting motor, its motor reel, be used to guarantee to compensate the installation site of shell fragment with axial shrinkage compensation mechanism.
The above-mentioned high-temperature superconducting motor with axial shrinkage compensation mechanism, the material of its first moment pipe and the second moment pipe is low temperature resistant heat-insulating material, is selected from glass fiber reinforced plastics composite material.
Above-mentioned high-temperature superconducting motor, material of its compensation shell fragment with axial shrinkage compensation mechanism be difficult for getting rusty, modulus of elasticity is little, intensity is high, ductility is good metal material, be selected from stainless steel, or titanium alloy, or beryllium-bronze; Gasket material is selected from rubber, or stainless steel, or epoxy composite material.
Principle of the present invention and effect are described as follows:
Structural principle is: axially the shrinkage compensation mechanism comprises the fixedly connected compensation shell fragment of outward flange of motor reel, a transition axis of fixing on axle, the first moment pipe end face in the motor reel of taper, this transition axis axis hole is a taper hole, be complementary with axial cone degree in the motor reel, these members have constituted axial shrinkage compensation mechanism.Compensate shell fragment as required and be designed to monolithic, or form compensation shell fragment group by multi-disc compensation shell fragment closed assembly, be used to compensate because the contraction that the temperature difference produces so as not to cause stress rupture, reduce physical dimension, transfer torque; The compensation shell fragment can be designed to disk shape or dish according to different compensation rates; Motor reel and transition axis contact portion are slightly tapered, being free to slide between the assurance; Leave positioning spigot on the motor reel, guarantee the installation site of compensation shell fragment.The present invention is primarily aimed at the stress rupture situation that the different elements constrict differences of superconducting motor rotor cause, and not only can compensate the difference in shrinkage of different parts, and as the part of rotor axial system, can also transfer torque, and the load of carrying rotor gravity.Since the existence of slide construction, the axiality of assurance motor; Come transfer torque by bolt and pin, reduced machining accuracy and complexity; This device is placed on the motor anti-drive end, guarantees higher fail safe and reliability.
Operation principle is: earlier motor is cooled off, rotor low-temp. portion branch begins to shrink, after the temperature that is cooled to require, because the contraction of magnet 8 and magnet carrier 7 and moment pipe 6, compensate shell fragment 4 and axially producing displacement, drive location transition axis 2 seam of displacement disengaging motor reel 3 together.Because location transition axis 2 is a matched in clearance with the mating part of motor reel 3, and the motor shaft disc portion is taper, so after reaching stable state, motor begins rotation, locate between transition axis 2 and the motor reel 3 this moment and throw off, at this moment compensate shell fragment 4 and bearing moment of torsion, gravity load.When motor stops, shutting down earlier, after stop cooling, after rotor returned to normal temperature, the low temperature parts recovered original size, the location transition axis is got back to stop portion and is stopped, and restPoses.
Obvious technical effects of the present invention: when 1, guaranteeing to demonstrate,prove the motor coaxle degree, realize nose balance; 2, come transfer torque by bolt, reduced machining accuracy and complexity; 3, axially the shrinkage compensation mechanism is placed in the motor anti-drive end, guarantees higher fail safe and reliability; 4, simple in structure, manufacturing and operation and maintenance cost are low.
Description of drawings
The high-temperature superconducting motor structural entity schematic diagram of Fig. 1 axial shrinkage compensation mechanism for the present invention has;
Fig. 2 is Fig. 1 rotor structure enlarged diagram;
Fig. 3 looks schematic diagram for compensation elastic piece structure master;
Fig. 4 is Fig. 3 A-A cutaway view.
The name token name is called in the accompanying drawing: 1.1-stator; 1.2-rotor; 2-transition axis; 3-motor reel; 3.1-motor reel outer shaft; 3.2 axle in the-motor reel; 3.3-positioning spigot; 4-compensation shell fragment; 4.1-compensation shell fragment outward flange; 4.2-compensation shell fragment inward flange; 5-external rotor; 6-the first moment pipe; 6 '-the second moment pipe; 7-magnet carrier; 8-magnet; 9-external rotor driving shaft.
Specific embodiments
It is as follows that the invention will be further described in conjunction with the accompanying drawings and embodiments:
Embodiment 1:As shown in the figure, a kind of high-temperature superconducting motor with axial shrinkage compensation mechanism, it comprises stator 1.1, rotor 1.2; Described rotor 1.2 comprises: a tubular external rotor 5, a motor reel 3 that is fixed on external rotor 5 one ends, also have an axial shrinkage compensation mechanism that is fixed on the magnet carrier 7 in external rotor 5 inner chambers and includes compensation shell fragment 4, there is external rotor driving shaft 9 external rotor 5 and motor reel 3 relative end outer ends; There is a motor reel outer shaft 3.1 at described motor reel 3 middle parts towards the outside side of external rotor 5 inner chambers, and axle 3.2 in the motor reel of a taper is arranged towards external rotor 5 inner chambers one side; Magnet carrier 7 one ends with magnet 8 are fixedly connected with the second moment pipe 6 ', and fixedly connected with external rotor driving shaft 9 by this second moment pipe 6 ', magnet carrier 7 other ends are fixed with the first moment pipe 6, and the compensation shell fragment 4 that passes through to fix on these first moment pipe, 6 end faces is fixedlyed connected with the outward flange of motor reel 3, also fix a transition axis 2 on the first moment pipe, 6 end faces, these transition axis 2 axis holes are taper hole, are complementary with axle 3.2 taperings in the motor reel, are used to keep the gap to slide; Axle 3.2, transition axis 2, magnet carrier 7 and 9 deads in line of external rotor driving shaft are promptly coaxial in described motor reel outer shaft 3.1, the motor reel.A fixing transition axis 2 on axle 3.2, the first moment pipe 6 end faces in the motor reel of the fixedly connected compensation shell fragment 4 of the outward flange that described axial shrinkage compensation mechanism comprises motor reel 3, taper, these transition axis 2 axis holes are taper hole, be complementary with axle 3.2 taperings in the motor reel, the first moment pipe 6 is overlapping with compensation shell fragment compensation mechanism 4 and transition axis 2 stationary planes, is an integral body with bolt.Compensation shell fragment 4 is fixedly connected with the outward flange of motor reel 3 to be that bolt is connected.The second moment pipe 6 ' and external rotor driving shaft 9 are fixedly connected to be that bolt is connected.Present embodiment compensation shell fragment 4 is 10 and forms compensation shell fragment group; Being shaped as of compensation shell fragment 4 is round plate shaped or dish-shaped, and mid portion is a through hole; All have bolt hole and the pin-and-hole that is used for fixing and locatees on compensation shell fragment outward flange 4.1 and the compensation shell fragment inward flange 4.2.Between the adjacent compensation shell fragment of compensation shell fragment group, all place the thin type pad at compensation shell fragment outward flange 4.1 and compensation shell fragment inward flange 4.2 places.Compensation shell fragment 4 is fixedlyed connected with the outward flange of motor reel 3 by the fixing hole on the compensation shell fragment outward flange 4.1; The outer shaft 3.1 of motor reel 3 is external rotor 5 anti-drive end end axles; Compensation shell fragment 4 is connected with the first moment pipe 6 by the fixing hole on the compensation shell fragment inward flange 4.2, and these first moment pipe, 6 other ends are connected with low temperature parts magnet carrier 7.Leave positioning spigot 3.3 on the axle 3.2 in the motor reel, be used to guarantee to compensate the installation site of shell fragment 4.The material of the first moment pipe 6 and the second moment pipe 6 ' is low temperature resistant heat-insulating material.The material of compensation shell fragment 4 be difficult for getting rusty, modulus of elasticity is little, intensity is high, ductility is good metal material, present embodiment is selected from stainless steel, also optional titanium alloy, or beryllium-bronze; The present embodiment gasket material is selected from stainless steel, also optional rubber, or epoxy composite material.
Embodiment 2:Different with the foregoing description 1 is: compensation shell fragment 4 is made up of 1 plate shaped compensation shell fragment of circle, compensation shell fragment material employing beryllium-bronze material.
Embodiment 3:Different with above-mentioned enforcement 1 example is: the compensation shell fragment group that compensation shell fragment 4 is made up of 5 dish compensation shell fragments, and compensation shell fragment material adopts titanium alloy material; Gasket material is selected from epoxy composite material.
Claim protection range of the present invention is not limited to the foregoing description.
Claims (10)
1. the high-temperature superconducting motor with axial shrinkage compensation mechanism is characterized in that, it comprises stator (1.1), rotor (1.2); Described rotor (1.2) comprising: a tubular external rotor (5), a motor reel (3) that is fixed on external rotor (5) one ends, also have an axial shrinkage compensation mechanism that is fixed on the magnet carrier (7) in external rotor (5) inner chamber and includes compensation shell fragment (4), there is external rotor driving shaft (9) the end outer end that external rotor (5) is relative with motor reel (3); There is a motor reel outer shaft (3.1) at described motor reel (3) middle part towards the outside side of external rotor (5) inner chamber, and the interior axle of motor reel (3.2) of a taper is arranged towards external rotor (5) inner chamber one side; Magnet carrier (7) one ends with magnet (8) are fixedly connected with the second moment pipe (6 '), and fixedly connected with external rotor driving shaft (9) by this second moment pipe (6 '), magnet carrier (7) other end is fixed with the first moment pipe (6), and the compensation shell fragment (4) that passes through to fix on this first moment pipe (6) end face is fixedlyed connected with the outward flange of motor reel (3), also fix a transition axis (2) on first moment pipe (6) end face, this transition axis (2) axis hole is a taper hole, be complementary with axle (3.2) tapering in the motor reel, be used to keep the gap to slide; Axle (3.2), transition axis (2), magnet carrier (7) and external rotor driving shaft (9) dead in line are promptly coaxial in described motor reel outer shaft (3.1), the motor reel.
2. by the described high-temperature superconducting motor of claim 1 with axial shrinkage compensation mechanism, it is characterized in that: axially the shrinkage compensation mechanism comprises in the motor reel of the fixedly connected compensation shell fragment (4) of the outward flange of motor reel (3), taper a fixing transition axis (2) on axle (3.2), first moment pipe (6) end face, this transition axis (2) axis hole is a taper hole, be complementary with axle (3.2) tapering in the motor reel, the first moment pipe (6) is overlapping with compensation shell fragment (4) and transition axis (2) stationary plane, is an integral body with bolt.
3. by the described high-temperature superconducting motor with axial shrinkage compensation mechanism of claim 1, it is characterized in that: compensation shell fragment (4) is fixedly connected with the outward flange of motor reel (3) to be that bolt is connected.
4. by the described high-temperature superconducting motor with axial shrinkage compensation mechanism of claim 1, it is characterized in that: the second moment pipe (6 ') is fixedly connected with external rotor driving shaft (9) to be that bolt is connected.
5. by the described high-temperature superconducting motor with axial shrinkage compensation mechanism of claim 1, it is characterized in that: compensation shell fragment (4) is 1, or at least two are formed compensation shell fragment group; Being shaped as of compensation shell fragment (4) is round plate shaped or dish-shaped, and mid portion is a through hole; All have bolt hole and the pin-and-hole that is used for fixing and locatees on compensation shell fragment outward flange (4.1) and the compensation shell fragment inward flange (4.2).
6. by the described high-temperature superconducting motor of claim 5 with axial shrinkage compensation mechanism, it is characterized in that: between the adjacent compensation shell fragment of compensation shell fragment group, locate all to place the thin type pad at compensation shell fragment outward flange (4.1) and compensation shell fragment inward flange (4.2).
7. by the described high-temperature superconducting motor with axial shrinkage compensation mechanism of claim 1, it is characterized in that: compensation shell fragment (4) is fixedlyed connected with the outward flange of motor reel (3) by the fixing hole on the compensation shell fragment outward flange (4.1); The outer shaft (3.1) of motor reel (3) is external rotor (a 5) anti-drive end end axle; Compensation shell fragment (4) is connected with the first moment pipe (6) by the fixing hole on the compensation shell fragment inward flange (4.2), and this first moment pipe (6) other end is connected with low temperature parts magnet carrier (7).
8. by the described high-temperature superconducting motor of claim 1, it is characterized in that: leave positioning spigot (3.3) on the axle (3.2) in the motor reel, be used for guaranteeing the installation site of compensation shell fragment (4) with axial shrinkage compensation mechanism.
9. by the described high-temperature superconducting motor with axial shrinkage compensation mechanism of claim 1, it is characterized in that: the material of the first moment pipe (6) and the second moment pipe (6 ') is low temperature resistant heat-insulating material, is selected from glass fiber reinforced plastics composite material.
10. by the described high-temperature superconducting motor of claim 1 with axial shrinkage compensation mechanism, it is characterized in that: the material of compensation shell fragment (4) be difficult for getting rusty, modulus of elasticity is little, intensity is high, ductility is good metal material, be selected from stainless steel, or titanium alloy, or beryllium-bronze; Gasket material is selected from rubber, or stainless steel, or epoxy composite material.
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| CN 201110064964 CN102130570B (en) | 2011-03-17 | 2011-03-17 | High-temperature superconducting motor with axial cold contraction compensation mechanism |
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| CN 201110064964 CN102130570B (en) | 2011-03-17 | 2011-03-17 | High-temperature superconducting motor with axial cold contraction compensation mechanism |
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| CN102130570B CN102130570B (en) | 2013-04-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825427A (en) * | 2014-03-13 | 2014-05-28 | 华中科技大学 | Torque conducting structure for superconducting motor |
| CN107834757A (en) * | 2017-11-21 | 2018-03-23 | 安徽同华新能源动力股份有限公司 | Machine shaft |
| CN108860522A (en) * | 2018-06-22 | 2018-11-23 | 长沙金信诺防务技术有限公司 | A kind of underwater separator and its installation method |
| CN109713876A (en) * | 2018-12-18 | 2019-05-03 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | A kind of large capacity high-temperature superconducting motor |
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| US4092555A (en) * | 1976-10-15 | 1978-05-30 | Electric Power Research Institute | Sliding support for a superconducting generator rotor |
| CN1550061A (en) * | 2001-08-30 | 2004-11-24 | Electrical machines for navy vessels based on superconducting technology, | |
| US20050088048A1 (en) * | 2003-08-07 | 2005-04-28 | Siemens Aktiengesellschaft | Machine device having superconducting winding and thermosiphon cooling of winding |
| CN1672313A (en) * | 2002-08-02 | 2005-09-21 | 西门子公司 | Machine with a coolable winding arranged in a winding support and a with a torque transmitting device |
| CN101355291A (en) * | 2008-09-19 | 2009-01-28 | 湘潭电机股份有限公司 | Super conductive motor and manufacturing method thereof |
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2011
- 2011-03-17 CN CN 201110064964 patent/CN102130570B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4092555A (en) * | 1976-10-15 | 1978-05-30 | Electric Power Research Institute | Sliding support for a superconducting generator rotor |
| CN1550061A (en) * | 2001-08-30 | 2004-11-24 | Electrical machines for navy vessels based on superconducting technology, | |
| CN1672313A (en) * | 2002-08-02 | 2005-09-21 | 西门子公司 | Machine with a coolable winding arranged in a winding support and a with a torque transmitting device |
| US20050088048A1 (en) * | 2003-08-07 | 2005-04-28 | Siemens Aktiengesellschaft | Machine device having superconducting winding and thermosiphon cooling of winding |
| CN101355291A (en) * | 2008-09-19 | 2009-01-28 | 湘潭电机股份有限公司 | Super conductive motor and manufacturing method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825427A (en) * | 2014-03-13 | 2014-05-28 | 华中科技大学 | Torque conducting structure for superconducting motor |
| CN107834757A (en) * | 2017-11-21 | 2018-03-23 | 安徽同华新能源动力股份有限公司 | Machine shaft |
| CN108860522A (en) * | 2018-06-22 | 2018-11-23 | 长沙金信诺防务技术有限公司 | A kind of underwater separator and its installation method |
| CN109713876A (en) * | 2018-12-18 | 2019-05-03 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | A kind of large capacity high-temperature superconducting motor |
| CN109713876B (en) * | 2018-12-18 | 2020-04-28 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Large-capacity high-temperature superconducting motor |
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