阅读说明：本技术 一种用于超导回旋加速器低温恒温器的固定机构 (Fixing mechanism for cryostat of superconducting cyclotron ) 是由 王飞 王川 吕银龙 邢建升 李明 王振辉 朱鹏飞 刘杰 于 2019-11-04 设计创作，主要内容包括：本发明涉及超导回旋加速器的技术领域,尤其是涉及一种用于超导回旋加速器低温恒温器的固定机构。一种用于超导回旋加速器低温恒温器的固定机构,包括与下盖板固定连接的磁极导向筒和位于磁极导向筒内的多块固定引导板,所述磁极导向筒为圆柱形筒状,磁极导向筒一端开口、另一端通过密封板密封,多块所述固定引导板固定连接在密封板上且与磁极导向筒内壁间隔相等距离。下盖板运动时带动固定机构一起运动。在运动至低温恒温器侧壁处于磁极导向筒内壁和固定引导板之间的位置时,通过磁极导向筒和固定引导板配合将低温恒温器的位置固定。使得处于低温恒温器内的超导线圈的磁场中心与超导回旋加速器磁铁的中心处于同一位置。(The invention relates to the technical field of superconducting cyclotrons, in particular to a fixing mechanism for a cryostat of a superconducting cyclotrons. The utility model provides a fixed establishment for superconductive cyclotron cryostat, includes the fixed guide board of the magnetic pole guide cylinder with apron fixed connection down and the polylith that is located the magnetic pole guide cylinder, the magnetic pole guide cylinder is cylindrical tube-shape, and magnetic pole guide cylinder one end opening, the other end pass through the closing plate sealed, polylith fixed guide board fixed connection just with the magnetic pole guide cylinder inner wall interval equidistance on the closing plate. The lower cover plate drives the fixing mechanism to move together when moving. When the magnetic pole guide cylinder moves to the position between the inner wall of the magnetic pole guide cylinder and the fixed guide plate on the side wall of the cryostat, the position of the cryostat is fixed through the cooperation of the magnetic pole guide cylinder and the fixed guide plate. So that the center of the magnetic field of the superconducting coil within the cryostat is in the same position as the center of the superconducting cyclotron magnet.)

1. A fixing mechanism for a cryostat of a superconducting cyclotron is characterized in that: including with lower apron fixed connection's magnetic pole guide cylinder (1) and be located the fixed guide board of polylith (2) in magnetic pole guide cylinder (1), magnetic pole guide cylinder (1) is cylindrical tube-shape, and magnetic pole guide cylinder (1) one end opening, the other end pass through closing plate (3) sealed, polylith fixed guide board (2) fixed connection just with magnetic pole guide cylinder (1) inner wall interval equidistance on closing plate (3).

2. The securing mechanism for a superconducting cyclotron cryostat according to claim 1, wherein: fixed guide board (2) are including guide section (4) and integrated into one piece at guide section (4) both ends towards bearing section (5) and location section (6) of closing plate (3) centre of a circle one side, and bolt (10) are all worn to be equipped with in bearing section (5) and location section (6), and the one end and closing plate (3) threaded connection that bolt (10) were worn out.

3. The securing mechanism for a superconducting cyclotron cryostat according to claim 2, wherein: three bearing holes (8) which are linearly arranged are formed in the middle of the bearing section (5), and three bolts (10) penetrate through the three bearing holes (8) respectively and then are connected with the sealing plate (3).

4. The securing mechanism for a superconducting cyclotron cryostat according to claim 2, wherein: the guide section (4) is arc-shaped, the guide section (4) of each fixed guide plate (2) is concentric with the sealing plate (3), and the diameter of the outer edge of the guide section (4) is equal to the inner diameter of the cryostat.

5. The securing mechanism for a superconducting cyclotron cryostat according to claim 4, wherein: and an inclined guide surface (7) is formed on one side of the outer edge of the guide section (4) back to the sealing plate (3).

6. The securing mechanism for a superconducting cyclotron cryostat according to claim 5, wherein: the inner diameter of the magnetic pole guide cylinder (1) is larger than the outer diameter of the cryostat.

7. The securing mechanism for a superconducting cyclotron cryostat according to claim 1, wherein: the fixed guide plate (2) comprises a clamping section (11) in a circular arc shape and a force bearing section (5) which is integrally formed in the middle of the clamping section (11) and faces one side of the circle center of the sealing plate (3), bolts (10) are arranged at the two ends of the clamping section (11) and in the middle of the force bearing section (5) in a penetrating mode, and one end, penetrated out by the bolts (10), of the bolt is in threaded connection with the sealing plate (3).

8. The securing mechanism for a superconducting cyclotron cryostat according to claim 7, wherein: bearing holes (8) which are linearly arranged are formed in the bearing section (5), connecting lines of the centers of the three bearing holes (8) pass through the circle center of the sealing plate (3), and three bolts (10) penetrate through the bearing holes (8) and then are connected with the sealing plate (3).

9. The securing mechanism for a superconducting cyclotron cryostat according to claim 8, wherein: a chamfer is formed on one inward side of the opening end of the magnetic pole guide cylinder (1), the inner diameter of the magnetic pole guide cylinder (1) is equal to the outer diameter of the cryostat, and the diameter of the outer edge of the abutting section (11) is equal to the inner diameter of the cryostat.

10. The securing mechanism for a superconducting cyclotron cryostat according to claim 1, wherein: the hardness of the material of the fixed guide plate (2) is less than that of the outer wall of the cryostat.

Technical Field

The invention relates to the technical field of superconducting cyclotrons, in particular to a fixing mechanism for a cryostat of a superconducting cyclotrons.

Background

The cryostat is one of the basic components of the superconducting cyclotron, and is an indispensable component of the superconducting magnet of the superconducting cyclotron. The superconducting coil is placed in the cryostat to generate a strong magnetic field, and the center of the magnetic field is ensured to be consistent with the center of the magnet of the superconducting cyclotron.

The prior patent with the publication number of CN106132066B discloses a sealing structure of a cryostat of a superconducting cyclotron. The cryostat achieves the effect of stable sealing through the sealing structure.

The above prior art solution has the following drawbacks: as can be seen from fig. 1 of the present invention, when the lower cover plate of the superconducting cyclotron is lowered, the cryostat is left in the yoke of the superconducting cyclotron, and the cryostat is slightly shifted in position by the magnetic field. When the lower cover plate is lifted and restored to the original position, the situation that the magnetic field center of the superconducting coil is inconsistent with the center of the superconducting cyclotron magnet is easy to occur.

Disclosure of Invention

The invention aims to provide a fixing mechanism for a cryostat of a superconducting cyclotron, which has the advantage that the center of a magnetic field of a superconducting coil and the center of a magnet of the superconducting cyclotron can be positioned at the same position when a lower cover plate is lifted and restored to the original position.

The above object of the present invention is achieved by the following technical solutions: the utility model provides a fixed establishment for superconductive cyclotron cryostat, includes the fixed guide board of the magnetic pole guide cylinder with apron fixed connection down and the polylith that is located the magnetic pole guide cylinder, the magnetic pole guide cylinder is cylindrical tube-shape, and magnetic pole guide cylinder one end opening, the other end pass through the closing plate sealed, polylith fixed guide board fixed connection just with the magnetic pole guide cylinder inner wall interval equidistance on the closing plate.

Through adopting above-mentioned technical scheme, drive fixed establishment and move together when lower cover plate moves. When the magnetic pole guide cylinder moves to the position between the inner wall of the magnetic pole guide cylinder and the fixed guide plate on the side wall of the cryostat, the position of the cryostat is fixed through the cooperation of the magnetic pole guide cylinder and the fixed guide plate. So that the center of the magnetic field of the superconducting coil within the cryostat is in the same position as the center of the superconducting cyclotron magnet.

The invention is further configured to: the fixed guide board includes guide section and integrated into one piece at guide section both ends towards the bearing section and the location section of closing plate centre of a circle one side, and the bolt is all worn to be equipped with by bearing section and location section, the one end and the closing plate threaded connection that the bolt was worn out.

Through adopting above-mentioned technical scheme, pass bearing force section and location section through the bolt and prescribe fixed guide plate on the closing plate.

The invention is further configured to: three bearing holes which are linearly arranged are formed in the middle of the bearing section, and three bolts respectively penetrate through the three bearing holes and then are connected with the sealing plate.

Through adopting above-mentioned technical scheme, pass three bearing holes through three bolts and be connected bearing section and closing plate, owing to arrange along the line through three bolts and come fastening connection, consequently can play better bearing effect for cryostat can not take place the offset under the effect in magnetic field.

The invention is further configured to: the guide section is arc-shaped, the guide section of each fixed guide plate is concentric with the sealing plate, and the diameter of the outer edge of the guide section is equal to the inner diameter of the cryostat.

Through adopting above-mentioned technical scheme, come to support the inner wall of cryostat with the mode of face laminating through convex and the guide section that the diameter equals with cryostat internal diameter for cryostat's position is supported tightly fixedly by the guide section.

The invention is further configured to: the outer edge of the guide section is formed with an inclined guide surface at one side back to the sealing plate.

Through adopting above-mentioned technical scheme, when making cryostat's position a little skew through oblique guide surface, can guide cryostat to the normal position through oblique guide surface.

The invention is further configured to: the inner diameter of the magnetic pole guide cylinder is larger than the outer diameter of the low-temperature thermostat.

Through adopting above-mentioned technical scheme for the magnetic pole guide cylinder only covers cryostat's part inside when preliminary cover is established, and does not directly play the positioning action.

The invention is further configured to: the fixed guide plate comprises a clamping section in a circular arc shape and a bearing section which is integrally formed in the middle of the clamping section and faces one side of the circle center of the sealing plate, bolts are arranged at the two ends of the clamping section and the middle of the bearing section in a penetrating mode, and one end, penetrated out by the bolts, of the fixed guide plate is in threaded connection with the sealing plate.

Through adopting above-mentioned technical scheme, support the inside wall of tight cryostat through convex support the section tightly, fix the fixed guide board on the closing plate through the bolt.

The invention is further configured to: bearing holes which are arranged linearly are formed in the bearing section, connecting lines of the centers of the three bearing holes pass through the circle center of the sealing plate, and the three bolts penetrate through the bearing holes and then are connected with the sealing plate.

By adopting the technical scheme, the acting force of the torque on the bolt when the fixed guide plate rotates does not need to be considered in the linear direction of the bearing holes, so that the best bearing effect can be achieved in the direction. Because the cryostat receives the magnetic force effect after through four fixed guide boards location when, the fixed guide board along the magnetic force direction bears the biggest effort, and because the spacing of two adjacent fixed guide boards can offset the yawing force, consequently crosses the bearing hole and the bolt cooperation of line centre of a circle and can play best bearing effect through three.

The invention is further configured to: a chamfer is formed on one inward side of the open end of the magnetic pole guide cylinder, the inner diameter of the magnetic pole guide cylinder is equal to the outer diameter of the cryostat, and the diameter of the outer edge of the abutting section is equal to the inner diameter of the cryostat.

By adopting the technical scheme, the cryostat is guided into the magnetic pole guide cylinder through the chamfer to be matched and positioned with the magnetic pole guide cylinder.

The invention is further configured to: the material hardness of the fixed guide plate is less than the outer wall hardness of the cryostat.

Through adopting above-mentioned technical scheme for wearing and tearing are fixed guide board when fixed guide board and cryostat outer wall cooperation, protect cryostat not damaged.

In conclusion, the beneficial technical effects of the invention are as follows:

when the cryostat moves to the position where the side wall is positioned between the inner wall of the magnetic pole guide cylinder and the fixed guide plate, the position of the cryostat is fixed by the cooperation of the magnetic pole guide cylinder and the fixed guide plate, so that the center of the magnetic field of the superconducting coil positioned in the cryostat and the center of the magnet of the superconducting cyclotron are positioned at the same position.

When the position of the cryostat is somewhat offset by the ramp, the cryostat can be guided to the home position by the ramp.

Drawings

FIG. 1 is a schematic structural diagram of the first embodiment;

FIG. 2 is a schematic structural diagram of a fixed guide plate according to a first embodiment;

FIG. 3 is a schematic structural view of the second embodiment;

fig. 4 is a schematic structural view of the fixed guide plate in the second embodiment.

Reference numerals: 1. a magnetic pole guide cylinder; 2. fixing a guide plate; 3. a sealing plate; 4. a guide section; 5. a bearing section; 6. a positioning section; 7. an inclined guide surface; 8. a force bearing hole; 9. positioning holes; 10. a bolt; 11. and a pressing section.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.