CN209746109U - Special equipment for installing circumferential magnet - Google Patents
Special equipment for installing circumferential magnet Download PDFInfo
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- CN209746109U CN209746109U CN201822255524.1U CN201822255524U CN209746109U CN 209746109 U CN209746109 U CN 209746109U CN 201822255524 U CN201822255524 U CN 201822255524U CN 209746109 U CN209746109 U CN 209746109U
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Abstract
The utility model provides a circumference magnet installation professional equipment. The special device for mounting the magnet comprises a magnet feeding block device and a magnet rotating device. The utility model provides a special equipment for magnet installation simple structure, convenient and practical. And the utility model discloses an equipment is when the installation magnetic path, and the repulsion between the make full use of magnetic path makes it keep balance position, and the magnetic path is whole visible in the magnetic path rotary motion in-process, can observe at any time, adjust the magnetic path motion, guarantees that the magnetic path installation is smooth, safe.
Description
Technical Field
the utility model relates to an installation technical field of magnet, concretely relates to magnetic material's installation professional equipment of permanent magnet's circumference arrangement among magnetic resonance imaging equipment.
Background
the permanent magnetic resonance imaging system uses a magnet which mainly comprises a yoke iron, a magnetic material, a polar plate and a shimming ring.
The yoke generally includes an upper yoke, a side yoke, and a lower yoke, and the yoke may be designed in various forms such as a C-shape, a double column shape, a four column shape, etc. according to the number of the side yokes, and the side yoke is installed between the upper yoke and the lower yoke such that an inner space is formed between the upper yoke and the lower yoke.
The pole plate is generally made of two identical pieces, is arranged between the upper yoke and the lower yoke by a connecting piece and is respectively connected with the upper yoke and the lower yoke, and a certain gap is reserved between the pole plate and the upper yoke or the lower yoke and is used for installing the magnetic material. The shimming ring is connected to the side of the polar plate towards the center of the magnet.
The magnetic material is installed in the gap between the pole plate and the yoke, the amount of the magnetic material used for each magnet is several tons, and the magnetic material is usually processed into a plurality of small magnetic blocks which are installed on the magnet by glue or other mechanical methods. The magnetic material is installed in two modes, firstly, the magnetic material is installed and then magnetized, the small magnetic block is not magnetic during installation, the installation is convenient, a huge magnetic unit is formed after installation, and the power of magnetizing equipment is very high. The other method is that the small magnetic blocks are installed after being magnetized, and the method does not need high-power magnetizing equipment, but the method has magnetism before the small magnetic blocks are installed, and when the equidirectional array installation is carried out, large repulsive force exists between every two small magnetic blocks, so that a device is needed to ensure the safety and the reliability of the installation of the magnetic blocks.
siemens corporation patent application No. CN03130807.4 proposes a method for mounting a magnetic block, wherein a permanent magnetic cylinder slides to the surfaces of a pressure plate and a polar plate through an additional plate mounted on the periphery of the pressure plate and the polar plate, then glue is applied and fixed, and the steps are repeated to complete the assembly of the magnetic block.
The above method is very practical for assembling magnets of conventional construction, but is less suitable for magnets with circumferentially arranged magnet blocks. As like poles of magnetic materials repel and unlike poles attract, for a magnet with circumferentially arranged magnets, a large repulsive force exists between the central magnet and the circumferential magnet, for example, when the circumferential magnet is installed according to the method proposed in patent document CN03130807.4, and then the magnet is pushed to the position adjusted near the installation position, the peripheral magnet can easily rotate 180 degrees to be attracted to the central magnet, and the peripheral magnet is difficult to separate from the central magnet, so that special equipment is needed, and certain dangerousness is brought.
Disclosure of Invention
In view of this, the utility model provides a circumference magnet installation professional equipment aims at solving current problem.
According to the utility model discloses an aspect, a circumference magnet installation professional equipment, the circumference magnet is arranged by a plurality of magnetic paths and is formed, and this equipment includes: a magnetic block feeding device and a magnetic block rotating device; the magnetic block feeding device comprises an upper limiting plate, a lower limiting plate and a first connecting plate, wherein the upper limiting plate and the lower limiting plate are connected through the first connecting plate to form a magnetic block feeding channel for magnetic blocks to be installed to pass through; the magnetic block rotating device includes: the device comprises a first track, a first sliding block, a pulling plate, a second track and a second sliding block; the first track and the second track are fixed on the magnet device where the circumferential magnet is located, and the first sliding block is connected to one end of the pulling plate and can slide along the first track; the second sliding block is connected with the magnetic block to be installed and can slide along the second track; the other end of the pulling plate is also connected with the magnetic block to be installed.
furthermore, the magnetic block feeding device also comprises a limiting bar which is arranged on the inner side of the magnetic block feeding channel.
Furthermore, the number of the limiting strips is four.
Furthermore, a second connecting plate is fixed on the magnetic block to be installed.
Furthermore, a support plate can be detachably connected to the second connecting plate.
the utility model provides a magnet installation professional equipment divide into and advances magnetic path device and magnetic path rotary device, advances the magnetic path device and prescribes a limit to the magnetic path motion through advancing the magnetic path passageway, and magnetic path rotary device through the fixed magnetic path of arm-tie, makes the magnetic path can follow the circumference through the cooperation of track and slider and removes, simple structure, convenient and practical. The special equipment for installing the circumferential magnet of the utility model fully utilizes the repulsion force between the magnetic blocks to keep the magnetic blocks in a balanced position when the magnetic blocks are installed; the whole magnetic block is visible in the rotating and moving process of the magnetic block, the motion state of the magnetic block can be observed and adjusted at any time, and the smooth and safe installation process of the magnetic block is ensured.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic view of a circumferential magnet;
FIG. 2 is a schematic diagram of the magnetic orientation of the circumferential magnet blocks;
FIG. 3 is a schematic diagram of the force applied to the circumferential magnet blocks in the magnet inlet block channels;
fig. 4 is a first schematic structural diagram of a magnetic block feeding device of the special apparatus for mounting a magnet according to the embodiment of the present invention;
fig. 5 is a schematic structural view of a magnetic block rotating device of the special apparatus for mounting a magnet according to an embodiment of the present invention;
Fig. 6 is a sectional view of a magnetic block rotating device provided in an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a magnetic block feeding device of the special apparatus for mounting a magnet according to the embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
referring to fig. 1, a typical design of a magnet device with a circumferential magnet is shown as the following figure, which is a schematic half-section of the lower half part of the magnet, and comprises a yoke 1, a central magnet 2-1, a circumferential magnet 2-2, a pole plate 3 and a shimming ring 4, wherein the shimming ring 4 is fixed on the pole plate 3, the pole plate 3 is fixed on the yoke 1, a space for installing the central magnet 2-1 is reserved between the pole plate 3 and the yoke 1, and the circumferential magnet 2-2 is wound around the central magnet 2-1 and the pole plate 3.
The orientation direction of the central magnetic block 2-1 is along the Z direction, the central magnetic block is formed by a plurality of small magnetic block arrays which are arranged in the same direction, the central magnetic block is a common design structure of a permanent magnet, and the installation method of the central magnetic block is not described again. The orientation direction of the circumferential magnetic block 2-2 forms a certain included angle alpha with the Z axis, as shown in figure 2.
Referring to fig. 3, the stress of the circumferential magnetic block 2-2 in the magnetic block inlet channel is as shown in the figure, a certain gap a is left between the circumferential magnetic block 2-2 and the yoke 1, and b is the moving direction of the circumferential magnetic block when the circumferential magnetic block is installed, so that it can be seen that the force applied to the lower part of the magnetic block is greater than the force applied to the upper part, and therefore the circumferential magnetic block 2-2 is subjected to a resultant force c which turns upwards. If the circumferential magnetic block 2-2 is installed according to a traditional installation method, such as the method proposed in patent CN03130807.4, the circumferential magnetic block can easily rotate 180 degrees to be attracted to the central magnetic block 2-1 under the action of the resultant force c turning upwards.
Therefore, the utility model provides a magnet installation professional equipment to circumference magnet.
referring to fig. 4-6, a schematic structural diagram of a special device for mounting a magnet according to an embodiment of the present invention is shown. A magnet installation specific apparatus, comprising: a magnetic block feeding device and a magnetic block rotating device.
Referring to fig. 4, the magnetic block feeding device comprises an upper limiting plate 5-1 and a lower limiting plate 5-2, wherein the upper limiting plate 5-1 and the lower limiting plate 5-2 are connected by a second connecting plate 5-3 to form a magnetic block feeding channel 5.
The magnetic block inlet device is made of a non-magnetic material, the displacement of the magnetic block is limited through the magnetic block inlet channel 5, and furthermore, the inner side of the magnetic block inlet channel 5 is also provided with limiting strips 5-4, so that the horizontal displacement of the magnetic block in the magnetic block inlet channel 5 can be better limited, and the shaking is avoided; preferably, four limiting strips 5-4 are arranged on the upper portion and the lower portion of the magnetic block inlet channel 5 respectively and used for limiting horizontal displacement of the circumferential magnetic blocks, so that the circumferential magnetic blocks can move in parallel in the limiting channel, and deflection of the magnetic blocks caused by attraction or repulsion with nearby ferromagnetic parts can be avoided.
Referring to fig. 5 to 6, the magnetic block rotating apparatus includes: a first track 8, a first slider 9, a pulling plate 10, a second track 11 and a second slider 12; the first track 9 and the second track 11 are fixed on a magnet device where the circumferential magnet is located, the first sliding block 9 is connected to one end of the pulling plate 10 and can slide along the first track 9; the second sliding block 12 is connected with the magnetic block to be installed and can slide along the second track 11; the other end of the pulling plate 10 is also connected with a magnetic block to be installed.
the special equipment for mounting the magnet can adopt the following steps when the magnet is mounted:
a. butting the magnetic block inlet channel 5 with the circumference where the circumferential magnet is located, and fixing the first track 9 and the second track 12 on a magnet device where the circumferential magnet is located; preferably, the first track 8 may be fixed to the shim ring 4/plate 3 and the second track 11 to the yoke 1;
b. The magnetic block to be installed is installed in the magnetic block inlet channel 5 and pushed to the circumference where the magnetic block to be installed is located; the device can be pushed manually or by a mechanical pushing device, such as a lever, a screw rod, an oil cylinder, an air cylinder and the like;
c. sequentially connecting a first sliding block 9, a pulling plate 10, a magnetic block to be installed and a second sliding block 12, and enabling the magnetic block to be installed to be kept at the current position through the matching of the first sliding block 9 and a first rail 8 and the matching of the second sliding block 12 and a second rail 11;
d. Applying tangential force to enable the magnetic block to slide along the first rail 8 and the second rail 9, fixing the magnetic block after the magnetic block reaches a preset position, and then removing the first sliding block 9, the pulling plate 10 and the second sliding block 12;
e. Repeating the steps b to d to complete the installation of the rest of the circumferential magnetic blocks;
f. And d, repeating the step b, fixing the magnetic block, and finishing the installation of the circumferential magnetic block at the position opposite to the magnetic block feeding device.
further, for convenience of connection, as shown in fig. 5 to 7, a second connecting plate 6 may be fixed on the magnetic block to be mounted, and an adhesive or mechanical connection may be selected according to actual conditions, in order to facilitate mounting and fixing of the circumferential magnetic block, the second connecting plate 6 may be used as a part of the magnetic block in general, and is not removed after mounting is completed, and particularly when the magnetic orientation angle of the circumferential magnetic block is very close to that of the central magnetic block, the possibility that the second connecting plate 6 is used as a part of the magnetic block is not excluded.
Further, as shown in fig. 7, the second connecting plate 6 may be detachably connected with a supporting plate 7, such as by screws. The supporting plate 7 functions as: connect into a whole with circumference magnetic path, and it and advance the contact of magnetic path 5 upper and lower bottom surface, make circumference magnetic path unable upset in advancing magnetic path 5, guarantee the safety of circumference magnetic path in the propelling movement process, consequently when advancing the magnetic path device and will waiting to install the magnetic path propelling movement to the circumference at place, alright dismantle backup pad 7. In addition, when there is no gap between the circumferential magnetic block and the yoke, i.e., a =0, due to the need of the magnet structure, the support plate 7 may not be used.
To sum up, the embodiment of the utility model provides a magnet installation professional equipment divide into magnetic path device and magnetic path rotary device with equipment, advances the magnetic path device and prescribes a limit to the magnetic path motion through advancing the magnetic path passageway, with magnetic path propelling movement to being close central magnetic path position, then through magnetic path rotary device, adopts the fixed magnetic path of arm-tie, makes the magnetic path can follow the circumference through the cooperation of track and slider and removes the position that needs the installation with the circumference magnetic path, the simple structure of this equipment, convenient and practical. In addition, the special equipment for mounting the magnet of the utility model fully utilizes the repulsion force between the magnet blocks to keep the magnet blocks in a balanced position when the magnet blocks are mounted; the whole magnetic block is visible in the rotating and moving process of the magnetic block, the motion state of the magnetic block can be observed and adjusted at any time, and the smooth and safe installation process of the magnetic block is ensured.
It will be apparent to those skilled in the art that various changes and modifications may be made to the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (5)
1. A circumference magnet installation professional equipment, circumference magnet is formed by a plurality of magnetic paths range, its characterized in that includes:
A magnetic block feeding device and a magnetic block rotating device;
The magnetic block feeding device comprises an upper limiting plate (5-1), a lower limiting plate (5-2) and a first connecting plate (5-3), wherein the upper limiting plate (5-1) and the lower limiting plate (5-2) are connected through the first connecting plate (5-3) to form a magnetic block feeding channel (5) for a magnetic block to be installed to pass through;
The magnetic block rotating device includes: the device comprises a first track (8), a first slide block (9), a pulling plate (10), a second track (11) and a second slide block (12); the first track (8) and the second track (11) are fixed on a magnet device where the circumferential magnets are located, and a first sliding block (9) is connected to one end of the pulling plate (10) and can slide along the first track (8); the second sliding block (12) is connected with the magnetic block to be installed and can slide along the second track (11); the other end of the pulling plate (10) is also connected with the magnetic block to be installed.
2. Special equipment for circumferential magnet installation as in claim 1, wherein the magnetic feeding block means further comprises a spacing bar (5-4) installed inside the magnetic feeding block channel (5).
3. A circumferential magnet installation specific apparatus according to claim 2, wherein the spacing bars (5-4) are four in number.
4. Special equipment for circumferential magnet installation according to claim 1, characterized in that a second connecting plate (6) is fixed on the magnet to be installed.
5. A circumferential magnet installation specific apparatus according to claim 4, characterized in that a support plate (7) is also detachably connected to the second connection plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822255524.1U CN209746109U (en) | 2018-12-29 | 2018-12-29 | Special equipment for installing circumferential magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822255524.1U CN209746109U (en) | 2018-12-29 | 2018-12-29 | Special equipment for installing circumferential magnet |
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| Publication Number | Publication Date |
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| CN209746109U true CN209746109U (en) | 2019-12-06 |
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| CN201822255524.1U Active CN209746109U (en) | 2018-12-29 | 2018-12-29 | Special equipment for installing circumferential magnet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109669150A (en) * | 2018-12-29 | 2019-04-23 | 佛山瑞加图医疗科技有限公司 | A kind of circumference magnet installation special equipment and installation method |
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2018
- 2018-12-29 CN CN201822255524.1U patent/CN209746109U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109669150A (en) * | 2018-12-29 | 2019-04-23 | 佛山瑞加图医疗科技有限公司 | A kind of circumference magnet installation special equipment and installation method |
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