CN211501380U - Magnetic suspension rotor falls radial protection device - Google Patents
Magnetic suspension rotor falls radial protection device Download PDFInfo
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- CN211501380U CN211501380U CN201921476501.1U CN201921476501U CN211501380U CN 211501380 U CN211501380 U CN 211501380U CN 201921476501 U CN201921476501 U CN 201921476501U CN 211501380 U CN211501380 U CN 211501380U
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- ring
- guard
- magnetic suspension
- protection device
- bearing
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Abstract
The utility model discloses a magnetic suspension rotor falls radial protection device, magnetic suspension rotor fall radial protection device comprises guard circle outer lane, guard circle inner circle, the flexible hinge of Z style of calligraphy and damping material, adopts the flexible hinged joint of a plurality of Z style of calligraphy of circumference evenly distributed between guard circle outer lane and the guard circle inner circle, and other gaps between the inner and outer lane adopt the damping material to fill. The relative position of the outer ring of the guard ring and the inner ring of the guard ring is in a coaxial relationship, the structural size of the outer ring of the guard ring is determined according to the shape and size of a bearing hole matched with the outer ring of the guard ring, and the structural size of the inner ring of the guard ring can be determined according to the size of the outer ring of the bearing matched with the inner ring of the guard ring or the size of the inner hole of the bearing. The magnetic suspension rotor falling radial protection device can be matched with a rolling bearing to form a magnetic suspension rotor protection device capable of rotating circumferentially, and can be directly matched and assembled with an inner ring or an outer ring of the rolling bearing to form a structural form that a protection ring is fixed or the protection ring is rotatable.
Description
Technical Field
The utility model belongs to the technical field of the magnetic suspension, a radial protection device is fallen to magnetic suspension rotor is provided very much.
Background
The magnetic suspension bearing utilizes magnetic force to enable the shafting and the shaft supporting device to rotate in a suspension mode, and has the advantages of no friction resistance and adjustable operation parameters. Due to the air gap existing in the operation of the magnetic suspension bearing, when the system is unstable, the rotor can fall off and impact the supporting structure.
In order to deal with the phenomenon, various protection device schemes are proposed by numerous inventors, and most protection rings or devices adopt an assembly scheme, and springs are designed between an inner ring and an outer ring or rubber gaskets are adopted to absorb impact energy. The rotating speed of the magnetic suspension bearing is generally very high, and when the system is abnormal, the rotor can generate great continuous impact when falling onto the protection device, so that the protection bearing can reach very high rotating speed instantly. The existing protective bearing has lower capability of resisting the impact of the rotor, so that the accidents that the protective bearing is damaged and even the magnetic suspension equipment is damaged due to the clamping of the protective bearing often occur.
The rotor dynamics of the magnetic suspension rotor is limited by the structural volume, the most common rolling bearing is used as a protective bearing in engineering, and the elastic deformation of the rolling bearing is utilized to absorb the impact energy of the falling rotor. The force analysis of the rolling body of the rolling bearing generally adopts a Hertz contact model, and the calculation is complex and the accuracy is poor. The deformation of the rolling bearing is also influenced by pre-tightening in use, and the sizes of the bearing track and the rolling body of different manufacturers are different, so that great difficulty is brought to design and use. The damping ratio is difficult to meet the requirement of retaining the bearing due to the fact that the elastic deformation amount of the rolling bearing is limited by the material and the volume of the rolling bearing, and the working range of a protective device mainly comprising the rolling bearing is very narrow. The bearing rigidity is too high, so that the protection effect cannot be achieved; the low bearing stiffness may cause damage to the protective bearing and even greater losses.
In view of this, the present invention is proposed.
Disclosure of Invention
The utility model discloses an overcome prior art not enough, provide a magnetic suspension rotor and fall radial protection device, can improve its work interval and damping ratio.
In order to realize the purpose, the utility model adopts the following technical scheme. A magnetic levitation rotor drop radial protection device, comprising:
the magnetic suspension rotor falling radial protection device is composed of a protection ring outer ring, a protection ring inner ring, Z-shaped flexible hinges and damping materials, wherein the protection ring outer ring and the protection ring inner ring are connected through a plurality of Z-shaped flexible hinges which are uniformly distributed in the circumferential direction, and other gaps between the inner ring and the outer ring are filled with the damping materials.
Through the technical scheme, more impact energy can be absorbed after the magnetic suspension rotor is unstable, the working range and the damping ratio are improved, and more protection is provided for the rotor.
The relative positions of the outer ring and the inner ring of the protective ring are in a coaxial relationship.
Through the technical scheme, the relative position precision between the outer ring of the protection ring, the inner ring of the protection ring and the magnetic suspension rotor can be ensured simultaneously, and the reliability of the magnetic suspension rotor falling radial protection ring is improved.
The structural size of the outer ring of the guard ring is determined according to the shape and size of a bearing hole matched with the outer ring of the guard ring.
Through the technical scheme, the magnetic suspension rotor falling radial protection ring can be arranged in the bearing inner hole, and the application occasions of the magnetic suspension rotor falling radial protection ring are increased.
The size of the inner ring structure of the protective ring can be determined according to the size of the outer ring of the bearing matched with the inner ring structure or the size of the inner hole of the bearing.
Through the technical scheme, the size of the magnetic suspension rotor can be directly matched with the size of the outer ring of the bearing or the size of the inner hole of the bearing in a processing mode, and the application occasions of the magnetic suspension rotor falling radial protection ring are increased.
The Z-shaped flexible hinges are circumferentially and uniformly distributed between the outer ring of the guard ring and the inner ring of the guard ring, the outer ring of the guard ring and the inner ring of the guard ring are connected, and the structure of the Z-shaped flexible hinges is determined according to the requirements of support rigidity, stress level and deformation.
Through the technical scheme, the Z-shaped flexible hinge with the most appropriate parameters can be selected according to the practical application environment, and the reliability of the magnetic suspension rotor falling radial protection device is improved.
The damping material can adopt various damping materials such as: butyl, acrylate, polysulfide, nitrile and silicone rubbers, polyurethane, polyvinyl chloride, and epoxy resins, and the like, as well as high damping alloys.
The magnetic suspension rotor falling radial protection device can be matched with a rolling bearing to form a magnetic suspension rotor protection device capable of rotating circumferentially, and can be directly matched and assembled with an inner ring or an outer ring of the rolling bearing to form a structural form that a protection ring is fixed or the protection ring can rotate.
By the technical scheme, the application occasions of the magnetic suspension rotor falling radial protection device can be increased.
Adopt the utility model discloses a technical scheme after, bring following beneficial effect:
1. the utility model discloses magnetic suspension rotor falls radial protection device comprises guard circle outer lane, guard circle inner circle, the flexible hinge of Z style of calligraphy and damping material, adopts the flexible hinged joint of a plurality of Z style of calligraphy of circumference evenly distributed between guard circle outer lane and the guard circle inner circle, and other gaps between the interior outer lane adopt damping material to fill. The magnetic suspension rotor can absorb more impact energy after being unstable, the working range and the damping ratio are improved, and more protection is provided for the rotor.
2. The utility model discloses the structure size of guard circle outer lane is according to shape, the size determination of complex bearing hole with it. The magnetic suspension rotor falling radial protection ring can be arranged in the bearing inner hole, and the application occasions of the magnetic suspension rotor falling radial protection ring are increased.
3. The utility model discloses guard ring inner circle structure size can be according to with it complex bearing inner race size or bearing hole size determination. The size of the magnetic suspension rotor falling radial protection ring can be directly matched with the size of the outer ring of the bearing or the size of the inner hole of the bearing in a machining mode, and the application occasions of the magnetic suspension rotor falling radial protection ring are increased.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a front view, with a partial cross-sectional view, of a magnetic levitation rotor drop radial protection device of the present invention.
Fig. 2 is a cross-sectional view of a front view of a magnetic levitation rotor drop radial protection device in the present invention.
Fig. 3 is a partially enlarged view of fig. 1.
The parts in the drawings are numbered as follows: 1. an outer ring of the guard ring; 2. an inner ring of the guard ring; 3. a Z-shaped flexible hinge; 4. a damping material;
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 1-3, an embodiment of the present invention includes:
example 1:
the utility model relates to a magnetic suspension rotor falls radial protection device is shown in figure 1, and the guard circle is the integrated into one piece shaping structure, and the guard circle comprises guard circle outer lane 1, guard circle inner circle 2, the flexible hinge 3 of Z style of calligraphy to and damping material 4. The relative positions of the outer ring 1 and the inner ring 2 of the guard ring are in a coaxial relationship. The Z-shaped flexible hinges 3 are circumferentially and uniformly distributed between the outer ring 1 and the inner ring 2 of the guard ring and are connected with the outer ring 1 and the inner ring 2 of the guard ring.
After the magnetic suspension rotor is unstable, the rotor directly or indirectly impacts the inner ring 2 of the protective ring, the Z-shaped flexible hinge 3 radially deforms, the coaxiality of the inner ring 2 of the protective ring relative to the outer ring 1 of the protective ring changes, the damping material 4 is driven to deform, and the magnetic suspension rotor falling radial protection device absorbs part of impact energy of the magnetic suspension rotor. The utility model adopts a large amount of damping materials, can absorb more impact energy, reduce multiple collisions in the falling process of the rotor and provide more protection for the rotor; when the utility model discloses when cooperation circumference antifriction bearing used, can improve the shock resistance and the rigidity of bearing as far as possible, need not consider again the required suitable rigidity of antifriction bearing, will greatly promote the degree of freedom of design, have wideer performance interval moreover.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (2)
1. A magnetic suspension rotor falling radial protection device is characterized in that the magnetic suspension rotor falling radial protection device is composed of a protection ring outer ring, a protection ring inner ring, Z-shaped flexible hinges and damping materials, the protection ring outer ring and the protection ring inner ring are connected through a plurality of Z-shaped flexible hinges which are uniformly distributed in the circumferential direction, and other gaps between the inner ring and the outer ring are filled with the damping materials.
2. A magnetic levitation rotor drop radial protection device as claimed in claim 1, wherein the relative positions of the outer ring of the guard ring and the inner ring of the guard ring are in a coaxial relationship.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921476501.1U CN211501380U (en) | 2019-09-06 | 2019-09-06 | Magnetic suspension rotor falls radial protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921476501.1U CN211501380U (en) | 2019-09-06 | 2019-09-06 | Magnetic suspension rotor falls radial protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211501380U true CN211501380U (en) | 2020-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921476501.1U Active CN211501380U (en) | 2019-09-06 | 2019-09-06 | Magnetic suspension rotor falls radial protection device |
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| Country | Link |
|---|---|
| CN (1) | CN211501380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112162450A (en) * | 2020-10-22 | 2021-01-01 | 吉林大学 | Focusing mechanism of eccentric shaft of space camera based on flexible guide rail |
-
2019
- 2019-09-06 CN CN201921476501.1U patent/CN211501380U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112162450A (en) * | 2020-10-22 | 2021-01-01 | 吉林大学 | Focusing mechanism of eccentric shaft of space camera based on flexible guide rail |
| CN112162450B (en) * | 2020-10-22 | 2021-05-28 | 吉林大学 | Focusing mechanism of eccentric shaft of space camera based on flexible guide rail |
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Effective date of registration: 20210826 Address after: 214154 warehouse-1, No. 3, No. 6 Luoshen Road, Huishan District, Wuxi City, Jiangsu Province (West Railway Station Logistics Park) Patentee after: Yazhijie intelligent equipment (Jiangsu) Co.,Ltd. Address before: 100036 West 205, Hengxin business building, 61 Fuxing Road, Haidian District, Beijing Patentee before: BEIJING YZJ ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY Co.,Ltd. |