CN103066800B - Cold shrinkage-compensating and positioning superconducting motor - Google Patents
Cold shrinkage-compensating and positioning superconducting motor Download PDFInfo
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- CN103066800B CN103066800B CN201210546010.6A CN201210546010A CN103066800B CN 103066800 B CN103066800 B CN 103066800B CN 201210546010 A CN201210546010 A CN 201210546010A CN 103066800 B CN103066800 B CN 103066800B
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Abstract
The invention relates to a cold shrinkage-compensating and positioning superconducting motor which comprises a rotor, a torque tube, a low-temperature container and a connection bolt. A low-temperature end of the torque tube is fixedly connected with the low-temperature container through the connection bolt. A ring-shaped groove seam allowance is arranged on a joint plane between the low-temperature container and the low-temperature end of the torque tube. The low-temperature end of the torque tube is arranged in the ring-shaped groove seam allowance. The outer diameter of the ring-shaped groove seam allowance is equal to that of the low-temperature end of the torque tube under the room temperature so that concentricity of the torque tube and the low-temperature container under the room temperature is ensured. Under the room temperature, the inner diameter of the ring-shaped groove seam allowance is less than that of the low-temperature end of the torque tube, the difference between inner diameters is a gap value between the inner side face of the ring-shaped groove seam allowance and the inner side face of the low-temperature end of the torque tube. The gap is used for avoiding stress generated when the low-temperature container works at a low temperature and ensuring concentricity of the torque tube and the low-temperature container at a low temperature. The cold shrinkage-compensating and positioning superconducting motor has the advantages of being good in positioning effect, high in safety, simple in structure and at the same time, capable of meeting installation and operation requirements such as concentricity.
Description
Technical field
The superconducting motor that the present invention relates to a kind of cold shrinkage-compensating location, belongs to superconducting motor technical field.
Background technology
In superconducting motor, because superconductor need to be operated under the environment of profound hypothermia, the supporting construction of this superconducting wire and drive mechanism relate to different materials.And different materials different distortion of meeting output in being reduced to chilling process by normal temperature, and then produce larger temperature stress or destroy closely cooperating between different parts.For overcoming the prior art of the collocation structure that change in size that superconducting motor Yin Wendu causes adopts, as a kind of torque tubes version of being introduced in US Patent No. 7462961B2, its torque tubes is full composite material composition, and one end connects normal temperature part, and the other end connects low temperature part.Being connected between this torque tubes and low-temperature (low temperature) vessel belongs to the connection between different materials.This cold shrinkage-compensating location has and better adds effect axial location.But the connection between linear expansion coefficient different materials, particularly divides with low-temp. portion the structure being connected, the variation of temperature can cause in various degree the distortion with different directions.Traditional have a kind of single seam radial positioning structure, but because of variations in temperature, radial location is the problem of Shortcomings still, and structural member easily suffers the destruction of cold contraction.Because in cooperation, if the larger material of linear expansion coefficient outside,, in temperature-fall period, the magnitude of interference between mating surface can increase, excessive temperature stress can cause structural damage; If the less material of linear expansion coefficient outside,, in temperature-fall period, the gap between mating surface will increase, and excessive gap can cause centering and the bias between different materials coupling part
Summary of the invention
The object of the invention is to: the shortcoming that overcomes prior art, provide a kind of radial location to take the version of inside and outside dual seam, can either meet the effect of seam location, by avoiding excessive temperature stress to cause the superconducting motor of a kind of cold shrinkage-compensating location of structural deterioration.
Technical scheme of the present invention is:
A superconducting motor for cold shrinkage-compensating location, is characterized in that, comprises rotor, torque tubes, low-temperature (low temperature) vessel and connecting bolt; Described torque tubes one end is torque tubes rotor-end, and the other end is torque tubes low-temperature end; Described torque tubes rotor-end is fixedly connected with rotor, and torque tubes low-temperature end is fixedly connected with by connecting bolt with low-temperature (low temperature) vessel; In the plane that low-temperature (low temperature) vessel is connected with torque tubes low-temperature end, have cannelure seam, torque tubes low-temperature end is in this cannelure seam; The external diameter of the external diameter of cannelure seam and torque tubes low-temperature end is identical in the time of normal temperature, for ensureing torque tubes and low-temperature (low temperature) vessel axiality at normal temperatures; In the time of normal temperature, the internal diameter of cannelure seam be less than torque tubes low-temperature end internal diameter, both differences are the gap width between the medial surface of cannelure seam and the medial surface of torque tubes low-temperature end, stress and guarantee torque tubes and low-temperature (low temperature) vessel axiality at low temperatures that this gap produces in the time of low-temperature working for avoiding low-temperature (low temperature) vessel.
The superconducting motor of described cold shrinkage-compensating location, the error amount of the external diameter of the external diameter of its cannelure seam and torque tubes low-temperature end in the time of normal temperature is the tolerance value as the interference fits of centralized positioning.
The superconducting motor of described cold shrinkage-compensating location, in the time of normal temperature, the gap width between the medial surface of cannelure seam and the medial surface of torque tubes low-temperature end is torque tubes becomes with low-temperature (low temperature) vessel radial contraction when the low-temperature working radial contraction value that centralized positioning coordinates.
The superconducting motor of described cold shrinkage-compensating location, the flange plate type link that its torque tubes low-temperature end is face of cylinder outwardly convex.
The superconducting motor of described cold shrinkage-compensating location, in its flange plate type link plane, there are several fixed vias, this fixed via is the slot with chamfering, and the center of the screwed hole being connected for connecting bolt with the bottom of cannelure seam overlaps in the time of normal temperature; Connecting bolt and slot radially have gap, the stress producing when the low-temperature working for eliminating low-temperature (low temperature) vessel.
The superconducting motor of described cold shrinkage-compensating location, has several screwed holes connecting for connecting bolt, the fixed via center superposition on the center of this screwed hole and cannelure seam lateral wall on the external cylindrical surface of its flange plate type link.
The superconducting motor of described cold shrinkage-compensating location, outside its torque tubes low-temperature end, there are several screwed holes connecting for connecting bolt on the face of cylinder, the fixed via center superposition on the center of this screwed hole and cannelure seam lateral wall to inside pipe wall ring stiffener boss.
The superconducting motor of described cold shrinkage-compensating location, the bottom surface of the end face of its torque tubes low-temperature end and cannelure seam is perpendicular to torque tubes and the common axis of low-temperature (low temperature) vessel.
The superconducting motor of described cold shrinkage-compensating location, in the time of normal temperature, the gap width between the medial surface of cannelure seam 3.1 and the medial surface of torque tubes low-temperature end 2.1 is determined by following formula:
One of them is the first material for torque tubes 2 and low-temperature (low temperature) vessel 3, another is the second material, average linear expansion coefficient while being reduced to low temperature from normal temperature is respectively α 1 and α 2, variations in temperature is Δ T, the medial surface of cannelure seam 3.1 is inner stopper, and the internal diameter of cannelure seam 3.1 is the diameter D at inner stopper place;
The monolateral amount of contraction of the first material is:
The monolateral amount of contraction of the second material is:
Gap that need to be reserved at inner stopper place is:
In conjunction with technical scheme of the present invention, principle, technique effect is described as follows:
In the time that normal temperature is installed, male half coupling plays positioning action, ensures the axiality of mounting structure parts; In temperature-fall period, the fit clearance between male half coupling increases gradually, and the gap between inner stopper dwindles gradually; In the time that temperature is reduced to rated temperature, the gap of inner stopper is reduced to 0, and now inner stopper plays the effect of axiality location.The superconducting motor of cold shrinkage-compensating of the present invention location, good positioning effect, the requirement that safe, simple in structure, the while can meet the installation and operations such as axiality.
Brief description of the drawings
Fig. 1 is one embodiment of the invention structural representation.
Fig. 2 is annular stopper and torque tubes low-temperature end structure M enlarged diagram in the time that normal temperature assembles; The present embodiment torque tubes low-temperature end is flange plate type link.
Fig. 3 be Fig. 1, embodiment illustrated in fig. 2 in the time of low-temperature working annular stopper and torque tubes low-temperature end end structure M enlarged diagram.
Fig. 4 is fixed via enlarged diagram shown in Fig. 1, Fig. 2, Fig. 3; Fixed via is outside in the plane of flange plate type link, and screwed hole is in the bottom of cannelure seam.
Fig. 5 is another embodiment of the present invention structural representation; The present embodiment fixed via is on the lateral wall of cannelure seam, and screwed hole is on the external cylindrical surface of flange plate type link.
Fig. 6 is another example structure schematic diagram of the present invention; The present embodiment fixed via is on the lateral wall of cannelure seam; Screwed hole outside torque tubes low-temperature end the face of cylinder to inside pipe wall ring stiffener boss.
In figure, the name of each Reference numeral is called: 1-rotor; 2-torque tubes; 2.0-torque tubes rotor-end; 2.1-torque tubes low-temperature end; 2.11-flange plate type link; 2.12-fixed via; 3-low-temperature (low temperature) vessel; 3.1-cannelure seam; 4-connecting bolt.
Embodiment
It is as follows that the invention will be further described in conjunction with the accompanying drawings and embodiments:
embodiment 1:a basic embodiment.As shown in Figure 1: the superconducting motor of a kind of cold shrinkage-compensating location, comprises rotor 1, torque tubes 2, low-temperature (low temperature) vessel 3 and connecting bolt 4; Described torque tubes 2 one end are torque tubes rotor-end 2.0, and the other end is torque tubes low-temperature end 2.1; Described torque tubes rotor-end 2.0 is fixedly connected with rotor 1, and torque tubes low-temperature end 2.1 is fixedly connected with by connecting bolt 4 with low-temperature (low temperature) vessel 3; In the plane that low-temperature (low temperature) vessel 3 is connected with torque tubes low-temperature end 2.1, have cannelure seam 3.1, torque tubes low-temperature end 2.1 is in this cannelure seam 3.1; The external diameter of the external diameter of cannelure seam 3.1 and torque tubes low-temperature end 2.1 is identical in the time of normal temperature, for ensureing torque tubes 2 and low-temperature (low temperature) vessel 3 axiality at normal temperatures; In the time of normal temperature, the internal diameter of cannelure seam 3.1 be less than torque tubes low-temperature end 2.1 internal diameter, both differences are the gap width between the medial surface of cannelure seam 3.1 and the medial surface of torque tubes low-temperature end 2.1, stress and guarantee torque tubes 2 and low-temperature (low temperature) vessel 3 axiality at low temperatures that this gap produces in the time of low-temperature working for avoiding low-temperature (low temperature) vessel 3.The error amount of the external diameter of the external diameter of described cannelure seam 3.1 and torque tubes low-temperature end 2.1 in the time of normal temperature is the tolerance value as the interference fits of centralized positioning.In the time of normal temperature, the gap width between the medial surface of cannelure seam 3.1 and the medial surface of torque tubes low-temperature end 2.1 is torque tubes 2 becomes with low-temperature (low temperature) vessel 3 radial contraction when the low-temperature working radial contraction value that centralized positioning coordinates.The bottom surface of the end face of torque tubes low-temperature end 2.1 and cannelure seam 3.1 is perpendicular to the common axis of torque tubes 2 and low-temperature (low temperature) vessel 3.
In the time of normal temperature, the gap width between the medial surface of cannelure seam 3.1 and the medial surface of torque tubes low-temperature end 2.1 is determined by following formula:
One of them is the first material for torque tubes 2 and low-temperature (low temperature) vessel 3, another is the second material, average linear expansion coefficient while being reduced to low temperature from normal temperature is respectively α 1 and α 2, variations in temperature is Δ T, the medial surface of cannelure seam (3.1) is inner stopper, and the internal diameter of cannelure seam 3.1 is the diameter D at inner stopper place;
The monolateral amount of contraction of the first material is:
The monolateral amount of contraction of the second material is:
Gap that need to be reserved at inner stopper place is:
embodiment 2:as Figure 1-4, be a preferred embodiment.As different from Example 1, described torque tubes low-temperature end 2.1 is the flange plate type link 2.11 of face of cylinder outwardly convex.In described flange plate type link 2.11 planes, have several fixed vias 2.12, this fixed via 2.12 is for having the slot of chamfering, and the center of the screwed hole being connected for connecting bolt 4 with the bottom of cannelure seam 3.1 overlaps in the time of normal temperature; Connecting bolt 4 radially has gap with slot, the stress producing when the low-temperature working for eliminating low-temperature (low temperature) vessel 3.
embodiment 3:as shown in Figure 5, be a preferred embodiment.As different from Example 2, on the external cylindrical surface of described flange plate type link 2.11, there are several screwed holes connecting for connecting bolt 4, the fixed via center superposition on the center of this screwed hole and cannelure seam 3.1 lateral walls.
embodiment 4:as shown in Figure 6, be a preferred embodiment.As different from Example 3, there are several screwed holes connecting for connecting bolt 4 on described torque tubes low-temperature end 2.1 faces of cylinder, outside to inside pipe wall ring stiffener boss, the fixed via center superposition on the center of this screwed hole and cannelure seam 3.1 lateral walls.
Claim protection range of the present invention is not limited to above-described embodiment.
Claims (9)
1. a superconducting motor for cold shrinkage-compensating location, is characterized in that, comprises rotor (1), torque tubes (2), low-temperature (low temperature) vessel (3) and connecting bolt (4); Described torque tubes (2) one end is torque tubes rotor-end (2.0), and the other end is torque tubes low-temperature end (2.1); Described torque tubes rotor-end (2.0) is fixedly connected with rotor (1), and torque tubes low-temperature end (2.1) is fixedly connected with by connecting bolt (4) with low-temperature (low temperature) vessel (3); In the plane that low-temperature (low temperature) vessel (3) is connected with torque tubes low-temperature end (2.1), have cannelure seam (3.1), torque tubes low-temperature end (2.1) is in this cannelure seam (3.1); The external diameter of the external diameter of cannelure seam (3.1) and torque tubes low-temperature end (2.1) is identical in the time of normal temperature, for ensureing torque tubes (2) and low-temperature (low temperature) vessel (3) axiality at normal temperatures; In the time of normal temperature, the internal diameter of cannelure seam (3.1) be less than torque tubes low-temperature end (2.1) internal diameter, both differences are the gap width between the medial surface of cannelure seam (3.1) and the medial surface of torque tubes low-temperature end (2.1), and this gap is used for stress and the guarantee torque tubes (2) and low-temperature (low temperature) vessel (3) axiality at low temperatures of avoiding low-temperature (low temperature) vessel (3) to produce in the time of low-temperature working.
2. the superconducting motor of cold shrinkage-compensating according to claim 1 location, it is characterized in that, the error amount of the external diameter of the external diameter of described cannelure seam (3.1) and torque tubes low-temperature end (2.1) in the time of normal temperature is the tolerance value as the interference fits of centralized positioning.
3. the superconducting motor of cold shrinkage-compensating according to claim 1 location, it is characterized in that, in the time of normal temperature, the gap width between the medial surface of cannelure seam (3.1) and the medial surface of torque tubes low-temperature end (2.1) is torque tubes (2) becomes with low-temperature (low temperature) vessel (3) radial contraction when the low-temperature working radial contraction value that centralized positioning coordinates.
4. the superconducting motor of cold shrinkage-compensating according to claim 1 location, is characterized in that, torque tubes low-temperature end (2.1) is the flange plate type link (2.11) of face of cylinder outwardly convex.
5. the superconducting motor of cold shrinkage-compensating according to claim 4 location, it is characterized in that, in flange plate type link (2.11) plane, there are several fixed vias (2.12), this fixed via (2.12) is for having the slot of chamfering, and the center of the screwed hole being connected for connecting bolt (4) with the bottom of cannelure seam (3.1) overlaps in the time of normal temperature; Connecting bolt (4) and slot radially have gap, the stress producing when the low-temperature working for eliminating low-temperature (low temperature) vessel (3).
6. the superconducting motor of cold shrinkage-compensating according to claim 4 location, it is characterized in that, on the external cylindrical surface of flange plate type link (2.11), there are several screwed holes connecting for connecting bolt (4), the fixed via center superposition on the center of this screwed hole and cannelure seam (3.1) lateral wall.
7. the superconducting motor of cold shrinkage-compensating according to claim 1 location, it is characterized in that, there are several screwed holes connecting for connecting bolt (4) on the face of cylinder, torque tubes low-temperature end (2.1) outside, the fixed via center superposition on the center of this screwed hole and cannelure seam (3.1) lateral wall to inside pipe wall ring stiffener boss.
8. the superconducting motor of cold shrinkage-compensating according to claim 1 location, is characterized in that, the bottom surface of the end face of torque tubes low-temperature end (2.1) and cannelure seam (3.1) is perpendicular to the common axis of torque tubes (2) and low-temperature (low temperature) vessel (3).
9. the superconducting motor of cold shrinkage-compensating according to claim 1 location, is characterized in that, in the time of normal temperature, the gap width between the medial surface of cannelure seam (3.1) and the medial surface of torque tubes low-temperature end (2.1) is determined by following formula:
One of them is the first material for torque tubes (2) and low-temperature (low temperature) vessel (3), another is the second material, average linear expansion coefficient while being reduced to low temperature from normal temperature is respectively α 1 and α 2, variations in temperature is Δ T, the medial surface of cannelure seam (3.1) is inner stopper, and the internal diameter of cannelure seam (3.1) is the diameter D at inner stopper place;
The monolateral amount of contraction of the first material is:
The monolateral amount of contraction of the second material is:
Gap that need to be reserved at inner stopper place is:
。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210546010.6A CN103066800B (en) | 2012-12-14 | 2012-12-14 | Cold shrinkage-compensating and positioning superconducting motor |
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| CN201210546010.6A CN103066800B (en) | 2012-12-14 | 2012-12-14 | Cold shrinkage-compensating and positioning superconducting motor |
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| CN103066800A CN103066800A (en) | 2013-04-24 |
| CN103066800B true CN103066800B (en) | 2014-10-22 |
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| CN114108345B (en) * | 2021-11-19 | 2023-05-26 | 中车长春轨道客车股份有限公司 | Thermal stress relief structure |
| CN115831527B (en) * | 2022-11-21 | 2023-09-12 | 苏州八匹马超导科技有限公司 | Superconducting magnet skeleton ejector rod mechanism |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4076988A (en) * | 1976-08-17 | 1978-02-28 | Westinghouse Electric Corporation | Superconducting dynamoelectric machine having a liquid metal shield |
| US5880547A (en) * | 1997-07-17 | 1999-03-09 | Reliance Electric Industrial Company | Internal torque tube for superconducting motor |
| US6129477A (en) * | 1997-07-17 | 2000-10-10 | Reliance Electric Technologies, Llc | Composite torque tube for superconducting motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101062519B1 (en) * | 2009-12-09 | 2011-09-06 | 두산중공업 주식회사 | Superconducting rotor with spline structure |
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- 2012-12-14 CN CN201210546010.6A patent/CN103066800B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4076988A (en) * | 1976-08-17 | 1978-02-28 | Westinghouse Electric Corporation | Superconducting dynamoelectric machine having a liquid metal shield |
| US5880547A (en) * | 1997-07-17 | 1999-03-09 | Reliance Electric Industrial Company | Internal torque tube for superconducting motor |
| US6129477A (en) * | 1997-07-17 | 2000-10-10 | Reliance Electric Technologies, Llc | Composite torque tube for superconducting motor |
Non-Patent Citations (2)
| Title |
|---|
| 周勇等.高温超导电机力矩管漏热分析.《武汉理工大学学报(交通科学与工程版)》.2011,第35卷(第01期),105-108. |
| 高温超导电机力矩管漏热分析;周勇等;《武汉理工大学学报(交通科学与工程版)》;20110228;第35卷(第01期);105-108 * |
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