CN204852006U - Pivot is with inhaling formula magnetic suspension bearing forever entirely - Google Patents
Pivot is with inhaling formula magnetic suspension bearing forever entirely Download PDFInfo
- Publication number
- CN204852006U CN204852006U CN201520543355.5U CN201520543355U CN204852006U CN 204852006 U CN204852006 U CN 204852006U CN 201520543355 U CN201520543355 U CN 201520543355U CN 204852006 U CN204852006 U CN 204852006U
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- China
- Prior art keywords
- permanent
- steel loop
- permanent magnets
- axle sleeve
- suspension bearing
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- 239000000725 suspension Substances 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 40
- 239000010959 steel Substances 0.000 claims abstract description 40
- 239000000428 dust Substances 0.000 claims description 12
- 230000007935 neutral effect Effects 0.000 claims description 7
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 239000000696 magnetic material Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910000828 alnico Inorganic materials 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The utility model provides a pivot is with inhaling the formula with magnetic suspension bearing forever entirely, includes axle sleeve, permanent magnetism block, steel loop and bearing frame, the axle sleeve suit is fixed in the pivot, this steel loop cover is in the periphery of axle sleeve, and this permanent magnetism block is located between the upper portion intermediate position and the all intermediate positions of this steel loop of this axle sleeve periphery, and this permanent magnetism block fixed in this steel loop on week, its characterized in that: this permanent magnetism block's the direction that magnetizes is radial magnetic pole, this steel loop is fixed on this bearing frame. Magnetic suspension bearing's magnetic force high -usage forever, manufacturing cost is saved in the use of the magnetism material that significantly reduces.
Description
Technical field:
The utility model relates to technical field, the particularly rotating shaft complete sucking type permanent-magnet suspension bearing of magnet application.
Background technique:
Permanent magnet to keep the magnet of its magnetic to claim for a long time.As natural magnetite (magnetite) and artificial magnet's (alnico alloy) etc.
Magnetic is for magnetic induction material or lure magnetic material (hereinafter referred to as luring magnet), the objects such as such as iron, when the N pole of magnetic or S are extremely close to magnetic strength material, permanent magnet is for the attraction force luring magnet to produce, this attraction force is because the magnetic pole of magnetic material induces opposite pole on inductive material, the mutual attractive force of opposite pole.
The inventor of the utility model patent application has applied on January 11st, 2011 the Chinese invention patent application CN201120007524 that name is called " a kind of permanent-magnet suspension bearing and mounting structure thereof ", disclosed " a kind of permanent-magnet suspension bearing and the mounting structure thereof " of this application for a patent for invention, this permanent-magnet suspension bearing comprises: inner ring (1); Outer ring (2), the inner peripheral surface of described outer ring (2) is fixed with multiple permanent magnetism ring body (21), described inner ring (1) is enclosed within described outer ring (2), the internal diameter of each described permanent magnetism ring body (21) is all greater than described inner ring (1) external diameter, and adjacent permanent magnetism ring body (21) is in axial direction spaced apart from each other; Multiple first radial permanent magnet body (3), it is upper and corresponding with the described multiple permanent magnetism ring bodies (21) be fixed on described outer ring (2) respectively that the plurality of first radial permanent magnet body (3) is fixed on described inner ring (1), and described each first radial permanent magnet body (3) radially to go up magnetic force with the described permanent magnetism ring body (21) corresponding to this first radial permanent magnet body (3) respectively attracting; At least one axial permanent magnetic body (4), this at least one axial permanent magnetic body (4) is fixed on described inner ring (1) and goes up and protrude from the outer peripheral surface of this inner ring (1), and at least one axial permanent magnetic body (4) described is positioned between described permanent magnetism ring body (21), thus described outer ring (2) is made to be in equilibrium of forces state in axial direction.
In actual applications, there is the problem needing as follows to overcome in the structure of this invention:
One be the magnetic pole of permanent magnetism ring body (21) and the first radial permanent magnet body (3) is all axial pole, the magnetic pole of permanent magnetism ring body (21) and the first radial permanent magnet body (3) is not just right, magnetic attraction between them is that the side direction magnetic line of force of magnetic pole produces, and the magnetic force that this side direction magnetic field produces is far smaller than two just to the magnetic force that magnetic pole produces; In the magneto motive situation of side direction, if will reach in just onesize to magnetic pole magnetic force, the physical dimension of the first radial permanent magnet body (3) and permanent magnetism ring body (21) must be increased, or use the magnetic material that magnetic is stronger.
Two is that permanent magnetism ring body (21) is fixed on the inner peripheral surface of outer ring (2), because the diameter of outer ring (2) is relatively large, thus the size of permanent magnetism ring body (21) also must be larger, large-sized permanent magnetism ring body (21) being difficult to manufactures, and this will increase cost of production greatly; Size in addition due to permanent magnetism ring body (21) is comparatively large, and it will produce larger idle magnetic force, increases the installation difficulty of product.Which also limits the use of permanent-magnet suspension bearing in actual product.
For the problem of prior art, designer of the present utility model, through test of many times, have devised the rotating shaft complete sucking type permanent-magnet suspension bearing of improvement.
Technical purpose
The purpose of this utility model is open a kind of rotating shaft complete sucking type permanent-magnet suspension bearing, large to overcome existing motor permanent-magnet suspension bearing size, the problem that manufacture cost is high.
Technological scheme
Rotating shaft complete sucking type permanent-magnet suspension bearing of the present utility model is implemented as follows: a kind of rotating shaft complete sucking type permanent-magnet suspension bearing, comprises axle sleeve, permanent magnets, steel loop and bearing support, and axle sleeve suit is fixed in rotating shaft; This steel ring cap is in the periphery of axle sleeve, and between the upper middle position of this permanent magnets in this axle sleeve periphery and this steel loop inner circumferential neutral position, this permanent magnets is fixed in this steel loop inner circumferential, it is characterized in that: the magnetizing direction of this permanent magnets is magnet radial poles; This steel loop is fixed on this bearing support.
The means of fixation of this permanent magnets and this steel loop inner circumferential is gluing.
This bearing support is provided with adjusting bolt, for adjusting the vertical displacement of bearing support and base.
This permanent magnets is fan-shaped; This permanent magnets, axle sleeve are identical with the shaft axis of rotating shaft with steel loop.
Should be provided with dust cover in the both ends of the surface of this permanent-magnet suspension bearing, this dust cover is separately fixed in the both ends of the surface of this steel loop.
Between upper middle position in this axle sleeve periphery of two these permanent magnets and this steel loop inner circumferential neutral position, this two permanent magnets is axially placed side by side, and is fixed in this steel loop inner circumferential, and the magnetizing direction of this two permanent magnets is magnet radial poles.
Because the magnetizing direction of the permanent magnet of rotating shaft complete sucking type permanent-magnet suspension bearing of the present utility model changes radial magnetizing into by axial charging, permanent magnet produce magnetic force direct effect and axle sleeve on, thus its magnetic force utilization ratio is high, compared with the structure of axial charging, under the condition reaching same magnetic attraction force, greatly reduce the use of magnetic material, save manufacture cost.Owing to adopting magnetic attraction direct interaction, be convenient to the size adjusting magnetic force.
Accompanying drawing explanation
The permanent-magnet suspension bearing structural representation of Fig. 1 prior art;
The radial cross section structural representation of Fig. 2 the utility model embodiment;
The axial cross section structural representation of Fig. 3 the utility model embodiment;
The axial cross section structural representation of another embodiment of Fig. 4 the utility model;
In accompanying drawing, the label of each component is:
Steel loop-1; Permanent magnet-2;
Axle sleeve-3; Bearing support-4;
Adjustment bolt-5; Dust cover-6;
Rotating shaft-7.
Specific embodiment
In order to understand structure of the present utility model and working principle better, below in conjunction with accompanying drawing, by specific embodiment, the utility model is described in detail.
The radial cross section structural representation of Fig. 2 the utility model embodiment, the axial cross section structural representation of Fig. 3 the utility model embodiment.As shown in Figure 2 and Figure 3, be a kind of embodiment of rotating shaft complete sucking type permanent-magnet suspension bearing.This rotating shaft complete sucking type permanent-magnet suspension bearing, comprises axle sleeve 3, permanent magnets 2, steel loop 1 and bearing support 4, and axle sleeve 3 suit is fixed in rotating shaft 7; This steel loop 1 is enclosed within the periphery of axle sleeve 3, and this permanent magnets 2 is between the neutral position of this axle sleeve 3 upper periphery and this steel loop 1 inner circumferential neutral position, and this permanent magnets 2 is fixed in this steel loop 1 inner circumferential, it is characterized in that: the magnetizing direction of this permanent magnets 2 is magnet radial poles; This steel loop 1 is fixed on this bearing support 4, and adjusting bolt 5 is arranged on bearing support 4 and base (base does not mark).
As described in Figure 3, the magnetizing direction of permanent magnets 2 be N pole upwards, S is extremely downward; In other embodiments, the magnetizing direction of permanent magnets 2 is that N is extremely downward, and S pole upwards.
In this embodiment, this rotating shaft 7 is also arranged with traditional mechanical bearing, in a non-operative state, namely when rotating shaft is not rotated, bearing support 4 is positioned at the position near base, permanent magnets 2 is close on this axle sleeve 3 by magnetic force, and namely the stiff member of this bearing support 4, steel loop 1 and permanent magnets 2 composition is positioned at the position near base, and at this moment axle sleeve 3 countershaft produces lifting force upwards.In this condition, steel loop 1 is convenient to and permanent magnets 2 is arranged in rotating shaft.When rotating shaft needs work time, by manually turning adjustment bolt 5, make this bearing support 4 relative to this base (base does not mark) to top offset, because the combination of this bearing support 4, steel loop 1 and permanent magnets 2 is the relation of being rigidly connected, when this bearing support 4 is to top offset, also drive steel loop 1 together with permanent magnets 2 to top offset.Due to magnetic force, this permanent magnets 2 produces lifting force upwards to this axle sleeve 3, and this is hoisted through this axle sleeve 3 and is applied to rotating shaft 7.Optimal state is that the pressure of rotating shaft 3 pairs of traditional bearings is zero when the magnetic attraction being applied to axle sleeve 3 equals whole down pressure sum that rotating shaft own wt and rotating shaft bear.Traditional bearing works without any load, and the loss of pivoting friction is zero.
In another embodiment, in order to avoid dust enters between permanent magnets 2 and this axle sleeve 3, and affect magnetic attraction effect, fix a dust cover 6 respectively in the both ends of the surface of this steel loop 1.Concrete structure is as follows: the both ends of the surface of this axle sleeve 3 are respectively equipped with boss 31, this dust cover 6 is the middle plectane having through hole, the through hole of this dust cover 6 is enclosed within the boss 31 of this axle sleeve 3, and leave running clearance with boss 31, fix on a dust cover 6 respectively in the both ends of the surface of this steel loop 1, this dust cover 6 stops dust to enter the space at permanent magnets 2 place.
In another embodiment, arrange two pieces of measure-alike permanent magnets 2 at axial parallel, these two pieces of permanent magnets 2 are all fixed in steel loop 1 inner circumferential.
The axial cross section structural representation of another embodiment of Fig. 4 the utility model; As shown in the figure, between upper middle position in this axle sleeve 3 periphery of two these permanent magnets 2 and this steel loop 1 inner circumferential neutral position, this two permanent magnets axle 2 to placement arranged side by side, and is separately fixed in this steel loop 1 inner circumferential, and the magnetizing direction of this two permanent magnets 2 is magnet radial poles.
Upwards, S is extremely downward in the N pole of two these permanent magnets 2.According to the needs that magnetic patch is installed, in other embodiments, can be extremely downward by the N of these two permanent magnets 2, S pole is upwards.Or oppositely placed by the magnetic pole of two pieces of permanent magnets 2, upwards, S is extremely downward in the N pole of such as one piece of magnetic patch; The N of another magnetic patch is extremely downward, and S pole upwards.
Above patent working scheme and specific embodiment are the mode of executions according to inventive concept, and in the claims, other embodiments according to design of the present utility model also belong to protection domain of the present utility model to protection domain record of the present utility model.
Claims (6)
1. a rotating shaft complete sucking type permanent-magnet suspension bearing, comprises axle sleeve, permanent magnets, steel loop and bearing support, and axle sleeve suit is fixed in rotating shaft; This steel ring cap is in the periphery of axle sleeve, and between the upper middle position of this permanent magnets in this axle sleeve periphery and this steel loop inner circumferential neutral position, this permanent magnets is fixed in this steel loop inner circumferential, it is characterized in that: the magnetizing direction of this permanent magnets is magnet radial poles; This steel loop is fixed on this bearing support.
2. permanent-magnet suspension bearing according to claim 1, is characterized in that: the means of fixation of this permanent magnets and this steel loop inner circumferential is gluing.
3. permanent-magnet suspension bearing according to claim 1, is characterized in that: on this bearing support, be provided with adjusting bolt, for adjusting the vertical displacement of bearing support and base.
4. permanent-magnet suspension bearing according to claim 1, is characterized in that: this permanent magnets is fan-shaped; This permanent magnets, axle sleeve are identical with the shaft axis of rotating shaft with steel loop.
5. permanent-magnet suspension bearing according to claim 1, is characterized in that: should be provided with dust cover in the both ends of the surface of this permanent-magnet suspension bearing, this dust cover is separately fixed in the both ends of the surface of this steel loop.
6. the permanent-magnet suspension bearing according to claim 1,2,3,4 or 5, it is characterized in that: between upper middle position in this axle sleeve periphery of two these permanent magnets and this steel loop inner circumferential neutral position, this two permanent magnets is axially placed side by side, and being fixed in this steel loop inner circumferential, the magnetizing direction of this two permanent magnets is magnet radial poles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520543355.5U CN204852006U (en) | 2015-07-24 | 2015-07-24 | Pivot is with inhaling formula magnetic suspension bearing forever entirely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520543355.5U CN204852006U (en) | 2015-07-24 | 2015-07-24 | Pivot is with inhaling formula magnetic suspension bearing forever entirely |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204852006U true CN204852006U (en) | 2015-12-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520543355.5U Active CN204852006U (en) | 2015-07-24 | 2015-07-24 | Pivot is with inhaling formula magnetic suspension bearing forever entirely |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204852006U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266457A (en) * | 2018-03-16 | 2018-07-10 | 无锡源晟动力科技有限公司 | Magnetic suspension bearing rotor bias magnet gravity-reducing device |
| CN110894854A (en) * | 2019-09-25 | 2020-03-20 | 北京工业大学 | Integrated permanent magnetism suspension's heavy load air supporting main shaft |
-
2015
- 2015-07-24 CN CN201520543355.5U patent/CN204852006U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266457A (en) * | 2018-03-16 | 2018-07-10 | 无锡源晟动力科技有限公司 | Magnetic suspension bearing rotor bias magnet gravity-reducing device |
| CN110894854A (en) * | 2019-09-25 | 2020-03-20 | 北京工业大学 | Integrated permanent magnetism suspension's heavy load air supporting main shaft |
| CN110894854B (en) * | 2019-09-25 | 2021-06-04 | 北京工业大学 | Integrated permanent magnetism suspension's heavy load air supporting main shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170302 Address after: 102600 Daxing District, Beijing Huang Village street, No. 5 Patentee after: Beijing Jingye bearing Limited by Share Ltd Address before: 100000 Beijing city Xicheng District Chengen Hutong No. 5 Patentee before: Luo Hong Patentee before: Zhang Ping |