CN219818640U - Simple positioning tool for adjustable superconducting magnet service tower assembly - Google Patents
Simple positioning tool for adjustable superconducting magnet service tower assembly Download PDFInfo
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- CN219818640U CN219818640U CN202322384618.XU CN202322384618U CN219818640U CN 219818640 U CN219818640 U CN 219818640U CN 202322384618 U CN202322384618 U CN 202322384618U CN 219818640 U CN219818640 U CN 219818640U
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- 238000003466 welding Methods 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 5
- 238000002595 magnetic resonance imaging Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 210000003734 kidney Anatomy 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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Abstract
The utility model discloses a simple positioning tool of an adjustable superconducting magnet service tower assembly, which comprises the following components: a frame and a connector; the bottom of the frame is used for being fixed on the outer cylinder, the connecting piece is adjustably arranged at the top of the frame, and the connecting piece is used for installing the support plate of the service tower; the frame comprises: a top plate and a foot plate; the top plate is provided with an avoidance hole which is used for avoiding the neck pipe assembly and the cold head container; the top of the foot plate is connected with the top plate, and the bottom of the foot plate is used for being fixed on the outer cylinder. This scheme is adjusted the service tower backup pad through the installation cooperation between connecting piece and the frame, compares with prior art, avoids because of the welding and after technological operation such as evacuation, adjusts the position of service tower backup pad, and the operation is wasted time and energy.
Description
Technical Field
The utility model relates to the technical field of magnetic resonance, in particular to a simple positioning tool for an adjustable superconducting magnet service tower assembly.
Background
With the development and maturation of magnetic resonance technology, magnetic resonance imaging devices are widely used in the clinical medical field. The magnetic resonance imaging superconducting magnet is a core component of the magnetic resonance imaging equipment, and the performance of the magnetic resonance imaging superconducting magnet is good or bad, so that the imaging effect of the equipment is directly influenced by the running stability.
The cold head container and the neck pipe assembly are welded at the back, and vacuumizing operation is carried out, so that the supporting plate is stressed to deform or deviate in all directions, assembly is difficult, auxiliary supports are required to be ground, the position of the supporting plate of the service tower is adjusted again, and operation is time-consuming and labor-consuming.
Disclosure of Invention
In view of the above, the utility model provides an adjustable simple positioning tool for a superconducting magnet service tower assembly, which has adjustability and simple and practical structure.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
an adjustable simple positioning fixture for a superconducting magnet service tower assembly, comprising: a frame and a connector;
the bottom of the frame is used for being fixed on the outer barrel, the connecting piece is adjustably arranged at the top of the frame, and the connecting piece is used for installing a service tower supporting plate;
the frame comprises: a top plate and a foot plate;
the top plate is provided with an avoidance hole, and the avoidance hole is used for avoiding the neck pipe assembly and the cold head container;
the top of the foot plate is connected with the top plate, and the bottom of the foot plate is used for being fixed on the outer cylinder.
Preferably, the frame further comprises: a bottom plate and a rib plate;
the number of the foot plates is multiple, and the bottom plate is connected between the bottoms of the foot plates;
the rib plates are connected between the tops of the foot plates, and the tops of the rib plates are connected to the bottom of the top plate.
Preferably, the top plate is provided with a first waist hole;
the bolt passes through the connecting piece, the first nut, the first waist round hole and the second nut in sequence, so that the connecting piece is fixed on the top plate.
Preferably, the number of the first waist round holes is multiple, and the multiple first waist round holes are respectively arranged at different positions of the top plate;
the number of bolts, the number of first nuts, the number of second nuts and the number of connecting pieces are all corresponding to the number of first waist round holes.
Preferably, the frame is made of stainless steel 304 or 316 material; and/or
The connecting piece is made of stainless steel 304 or 316.
Preferably, the shape of the connecting piece is a Z-shaped plate;
the first end of the Z-shaped plate is connected with the top plate, and the second end of the Z-shaped plate is connected with the service tower supporting plate.
Preferably, the Z-shaped plate is provided with a second waist-shaped hole, and the bolt penetrates through the second waist-shaped hole to connect the Z-shaped plate to the top plate;
and a third nut is arranged between the second waist round hole and the first nut and is used for clamping the Z-shaped plate.
Preferably, the arrangement direction of the first waist hole and the arrangement direction of the first waist hole after installation are 90 degrees.
Preferably, the Z-shaped plate is spot welded to the service tower support plate.
According to the technical scheme, the simple positioning tool for the adjustable superconducting magnet service tower assembly is capable of adjusting the service tower supporting plate through the installation and matching between the connecting piece and the frame; the scheme can realize the rapid positioning and installation of the neck pipe assembly and the cold head container through the arrangement of the frame, the connecting piece and the service tower supporting plate.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a frame of a simple positioning device and a structure of the frame matched with other parts according to an embodiment of the utility model;
FIG. 2 is a schematic diagram of a simple positioning device according to an embodiment of the present utility model and a structure of a connecting piece and other parts thereof;
FIG. 3 is a schematic diagram of a simple positioning device and a support plate of a service tower according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram of a simple positioning device and a service tower assembly according to an embodiment of the present utility model;
fig. 5 is a schematic structural diagram of a simple positioning device matched with a side plate of a service tower according to an embodiment of the present utility model.
10 is a frame, 11 is a top plate, 12 is a foot plate, 13 is a bottom plate, and 14 is a rib plate; 20 is a connecting piece; 30 is a bolt; 40 is a first nut; 50 is a second nut; 60 is a third nut; 70 is a service tower support plate; 80 is a service tower side plate; 90 is a neck assembly; 100 is a coldhead container; 110 is an outer barrel.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment of the utility model provides a simple positioning tool for an adjustable superconducting magnet service tower assembly, which comprises the following components: the frame 10 and the connector 20 may be specifically described with reference to fig. 1 to 3;
the bottom of the frame 10 is used for being fixed on the outer cylinder 110, the connecting piece 20 is adjustably arranged on the top of the frame 10, and the connecting piece 20 is used for installing the service tower supporting plate 70;
the frame 10 includes: a top plate 11 and a foot plate 12, the specific structure of which can be referred to in fig. 1;
the top plate 11 is provided with an avoidance hole for avoiding the neck pipe assembly 90 and the cold head container 100, and it should be noted that the neck pipe assembly 90 and the cold head container 100 are placed in the service tower support plate 70 from above the avoidance hole, and preferably, the top plate 11 is a rectangular plate, and the avoidance hole is a rectangular hole;
the top of the foot plate 12 is connected with the top plate 11, and the bottom of the foot plate 12 is used for being fixed on the outer cylinder 110; this arrangement facilitates structural stability and positioning of neck tube assembly 90 and coldhead container 100.
The scheme can realize the adjustment of the service tower supporting plate 70 through the installation cooperation between the connecting piece 20 and the frame 10, and the adjustment can be divided into a first adjustment and a second adjustment; the first adjustment mainly adjusts the position of the service tower support plate 70 to determine the relative position of the positioning installation of the neck tube assembly 90 and the coldhead container 100, and the second adjustment is to adjust the position of the service tower support plate 70 again by deforming the neck tube assembly 90 and the coldhead container 100 after welding and by shifting the position of the service tower support plate 70 due to the vacuuming operation. Compared with the prior art, the device can carry out secondary adjustment, avoid adjusting the position of the support plate of the service tower after technical operations such as welding, vacuumizing and the like, and is time-consuming and labor-consuming to operate. And this scheme simple structure is practical, installation rate is fast, low cost and safe and reliable.
Further, the frame 10 further includes: the specific structure of the bottom plate 13 and the rib plates 14 can be referred to as fig. 1, and the stability of the structure is more facilitated through the bottom plate 13 and the rib plates 14, so that the fatigue resistance of the frame is improved.
The number of the foot plates 12 is a plurality, and the bottom plate 13 is connected between the bottoms of the plurality of foot plates 12;
the rib 14 is connected between the tops of the plurality of leg plates 12, and the top of the rib 14 is connected to the bottom of the top plate 11.
In the above scheme, the top plate 11 is a rectangular plate, the number of the foot plates 12 is 4, the number of the bottom plates 13 is 2, the bottom ends of the adjacent foot plates 12 are connected through the bottom plates 13, and the arrangement direction of the 2 bottom plates 13 is the same as the arrangement direction of the long side of the top plate 11; the number of the rib plates 14 is 2, the top ends of the adjacent foot plates 12 are connected through the rib plates 14, and the setting direction of the 2 rib plates 14 is the same as the setting direction of the short sides of the top plate 11; the setting direction of the bottom plate 13 and the setting direction of the rib plates 14 are set at 90 degrees, so that the structure is simple and the materials are saved.
Preferably, the top plate is provided with a first waist round hole, and the first waist round hole provides a first adjustable degree of freedom;
the bolt 30 passes through the connecting piece 20, the first nut 40, the first waist hole and the second nut 50 in sequence to fix the connecting piece 20 to the top plate 11; the specific structure of the present utility model may refer to fig. 2, and it should be noted that the first nut 40 and the second nut 50 serve as clamping frames 10, and that when one of the first nut 40 and the second nut 50 is tightened, the position of the bolt 30 in the first waist hole may be adjusted, and the relative position of the service tower support plate 70 may be adjusted due to the connection of the bolt 30 and the connecting piece 20.
Specifically, the number of the first waist round holes is multiple, the first waist round holes are respectively arranged at different positions of the top plate, the specific structure of the first waist round holes can be described with reference to fig. 1, and the first waist round holes can be symmetrical in two-to-two mode at different positions, so that the stability of adjustment is facilitated;
the number of bolts 30, the number of first nuts 40, the number of second nuts 50, and the number of connectors 20 all correspond to the number of first lumbar holes. So arranged, accords with the structural principle.
In this embodiment, the frame 10 is made of stainless steel 304 or 316; and/or
The connecting piece 20 is made of stainless steel 304 or 316, and the stainless steel 304 or 316 is an industrial finished product, so that the cost is reduced.
Further, the connector 20 is in the shape of a Z-shaped plate, the specific structure of which can be seen in figure 1,
the first end of the Z-shaped plate is connected to the top plate and the second end of the Z-shaped plate is connected to the service tower support plate 70; the arrangement is that the plane of the top plate 11 and the plane of the service tower supporting plate 70 are staggered by a certain distance, which is beneficial to the utilization of the space by the tool; in addition, the Z-shaped plate can be formed by bending a top plate, and a plurality of plates can be spliced and welded.
Still further, the Z-shaped plate is provided with a second waist-shaped hole, and the bolt 30 passes through the second waist-shaped hole to connect the Z-shaped plate to the top plate 11, and the specific structure thereof can refer to fig. 2;
a third nut 60 is arranged between the second waist hole and the first nut 40, the third nut 60 is used for clamping the Z-shaped plate, and the specific structure can be referred to as fig. 2;
the principle and the purpose of the scheme are as follows:
the second kidney hole provides a second adjustable degree of freedom (plane) that can move relative to the bolt 30 when the third nut 60 is loosened; meanwhile, a third adjustable degree of freedom (space) is provided by the arrangement of the first nut 40 and the third nut 60, and the distance between the service tower support plate 70 and the top plate 11 can be adjusted by adjusting the relative distance between the third nut 60 and the first nut 40, so that the up-and-down adjustment of the space is realized; in popular terms, it is the degree of freedom that provides the Z axis.
Specifically, the arrangement direction of the first waist round holes after installation and the arrangement direction of the first waist round holes are 90 degrees. By arranging such that the first kidney-shaped aperture provides a first adjustable degree of freedom
Different from the direction in which the second kidney-shaped aperture provides the second adjustable degree of freedom; in colloquial terms, when the first kidney-shaped aperture provides an X-axis degree of freedom, the second kidney-shaped aperture provides a Y-axis degree of freedom; conversely, when the first kidney-shaped aperture provides the Y-axis degree of freedom, the second kidney-shaped aperture provides the X-axis degree of freedom.
As an advantage, the Z-shaped plate is fixed on the service tower support plate 70 by spot welding, and the specific structure thereof can be described with reference to fig. 4 and 5, wherein the connection between the Z-shaped plate and the service tower support plate 70 is lap joint, and then the Z-shaped plate is fixed by spot welding, so that the lap joint is beneficial to the utilization of space, and in addition, the spot welding is beneficial to the later dismantling.
The present solution is further described below in connection with specific embodiments:
the technical scheme is as follows:
as shown in fig. 1 and 2, the positioning tool consists of a frame 10, a Z-shaped plate and standard bolts and nuts.
The specific construction of the service tower assembly is illustrated in fig. 3 and 4 and is comprised of a service tower support plate 70 and two service tower side plates 80.
Shape characteristics of the frame 10: the material is stainless steel 304 or 316, and is formed by welding a rectangular plate top plate 11 with a rectangular hole in the center, four foot plates 12, two rib plates 14 and two bottom plates 13, wherein at least four through waist round holes are formed in the rectangular plate top plate 11.
Shape characteristics of the connector 20: the shape of the plate is a Z-shaped structure, and the plate is made of stainless steel 304 or 316, and can be formed by bending a rectangular plate top plate or welding a plurality of plates. The upper surface of the Z-shaped plate is provided with a through waist-round hole, and when the Z-shaped plate is installed with the frame 10, the waist-round holes of the Z-shaped plate and the frame are crossed.
As shown in fig. 3, the Z-shaped plate is fixed to the support plate 70 of the service tower by spot welding, then the Z-shaped plate is fixed to the frame 10 by bolts and nuts, and the specific connection is as shown in fig. 2, the bolts 30 are passed through the kidney holes of the Z-shaped plate, the third nuts 60 are screwed into the Z-shaped plate to clamp the Z-shaped plate, then the first nuts 40 are screwed into the Z-shaped plate, the bolts 30 are passed through the kidney holes of the frame 10, the second nuts 50 are screwed into the Z-shaped plate, and the frame 10 is clamped by the first nuts 40 and the second nuts 50. Then, a positioning tool provided with a service tower supporting plate is placed in a 300K outer cylinder, corresponding approximate positions are obtained, the foot plate 12 of the frame 10 and the 300K outer cylinder are welded and fixed, then the service tower supporting plate 70 is further adjusted to be in a correct position, as shown in fig. 3, the 300K outer cylinder corresponds to the outer cylinder 110 in the scheme, and a superconducting magnet comprises the 300K outer cylinder, a 50K aluminum screen assembly and a 4K liquid helium container; the 300K outer cylinder is the outermost layer and is used for contacting with air, so that the environment at normal temperature is adapted; where K is degrees kelvin, degrees kelvin=degrees celsius+273.15 ℃, i.e., degrees celsius=degrees kelvin-273.15 ℃, so 300K is 26.85 degrees celsius. The specific adjusting method comprises the following steps: as shown in fig. 2, the third nut 60 is loosened to move the service tower support plate back and forth along the kidney-shaped hole of the Z-shaped plate; only one of the first nut 40 and the second nut 50 is loosened, so that the service tower support plate 70 can move left and right along the waist hole of the frame 10; simultaneously, the first nut 40 and the second nut 50 are loosened, and the up-down positions of the first nut 40 and the second nut 50 are adjusted, so that the service tower support plate 70 can be moved up-down. After the position of the service tower support plate 70 is adjusted, the cold head container 100 and the neck tube assembly 90 are assembled, the required positions are sealed and welded as shown in fig. 4, then the neck tube assembly 90 and the upper opening of the cold head container 100 are sealed by tools, vacuum is pumped and a helium mass spectrometer leak detector is used for detecting the leak, after the leak detection is qualified, the position of the service tower support plate 70 is adjusted again according to the adjustment method aiming at the position deviation of the service tower support plate 70 caused by welding deformation and vacuumizing operation, and then the service tower support plate 70 is assembled into the service tower side plate 80, the joint spot welding of the connection of the service tower support 70, the service tower side plate 80 and the 300K outer cylinder is firmly fixed, then the positioning tool is disassembled, and all the joints are sealed and welded.
The protection point of the technical scheme is as follows: the structure of the positioning tool.
The technical scheme has the advantages that:
simple structure is practical, low cost, safe and reliable, labour saving and time saving, and this service tower welding set has certain adjustment ability in three orientation of space XYZ, satisfies the in-service use requirement, avoids the problem that installation service tower curb plate 80 can take place, and whole device weight is lighter, need not to install with the help of lifting means such as driving, crane.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. Simple positioning tool for an adjustable superconducting magnet service tower assembly, comprising: a frame (10) and a connector (20);
the bottom of the frame (10) is fixed on the outer cylinder (110), the connecting piece (20) is adjustably arranged at the top of the frame (10), and the connecting piece (20) is used for installing the service tower supporting plate (70);
the frame (10) comprises: a top plate (11) and a foot plate (12);
the top plate (11) is provided with an avoidance hole which is used for avoiding the neck pipe assembly (90) and the cold head container (100);
the top of the foot plate (12) is connected with the top plate (11), and the bottom of the foot plate (12) is used for being fixed on the outer cylinder (110).
2. The simplified positioning fixture of an adjustable superconducting magnet service tower assembly according to claim 1, wherein the frame (10) further comprises: a bottom plate (13) and a rib plate (14);
the number of the foot plates (12) is a plurality, and the bottom plate (13) is connected between the bottoms of the plurality of the foot plates (12);
the rib plates (14) are connected between the tops of the foot plates (12), and the tops of the rib plates (14) are connected to the bottom of the top plate (11).
3. The simple positioning fixture of an adjustable superconducting magnet service tower assembly according to claim 1, wherein the top plate (11) is provided with a first waist-round hole;
the bolt (30) sequentially penetrates through the connecting piece (20), the first nut (40), the first waist round hole and the second nut (50), and the connecting piece (20) is fixed on the top plate (11).
4. The simple positioning fixture for the adjustable superconducting magnet service tower assembly according to claim 3, wherein the number of the first waist round holes is a plurality, and the plurality of the first waist round holes are respectively arranged at different positions of the top plate (11);
the number of bolts (30), the number of first nuts (40), the number of second nuts (50) and the number of connecting pieces (20) correspond to the number of first waist-round holes.
5. The simplified positioning fixture of an adjustable superconducting magnet service tower assembly according to claim 1, wherein the frame (10) is made of stainless steel 304 or 316 material; and/or
The connecting piece (20) is made of stainless steel 304 or 316.
6. A simple positioning fixture for an adjustable superconducting magnet service tower assembly according to claim 3, wherein the shape of the connector (20) is a Z-plate;
the first end of the Z-shaped plate is connected with the top plate (11), and the second end of the Z-shaped plate is connected with the service tower supporting plate (70).
7. The simple positioning fixture of an adjustable superconducting magnet service tower assembly according to claim 6, wherein the Z-shaped plate is provided with a second waist-round hole, and the bolt (30) penetrates through the second waist-round hole to connect the Z-shaped plate to the top plate (11);
a third nut (60) is arranged between the second waist round hole and the first nut (40), and the third nut (60) is used for clamping the Z-shaped plate.
8. The tool for simply positioning an adjustable superconducting magnet service tower assembly according to claim 7, wherein the arrangement direction of the first waist-round holes and the arrangement direction of the first waist-round holes after installation are 90 degrees.
9. The simple positioning fixture of an adjustable superconducting magnet service tower assembly according to claim 6, wherein the Z-shaped plate is spot welded to the service tower support plate (70).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322384618.XU CN219818640U (en) | 2023-09-04 | 2023-09-04 | Simple positioning tool for adjustable superconducting magnet service tower assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322384618.XU CN219818640U (en) | 2023-09-04 | 2023-09-04 | Simple positioning tool for adjustable superconducting magnet service tower assembly |
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| Publication Number | Publication Date |
|---|---|
| CN219818640U true CN219818640U (en) | 2023-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322384618.XU Active CN219818640U (en) | 2023-09-04 | 2023-09-04 | Simple positioning tool for adjustable superconducting magnet service tower assembly |
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| Country | Link |
|---|---|
| CN (1) | CN219818640U (en) |
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2023
- 2023-09-04 CN CN202322384618.XU patent/CN219818640U/en active Active
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