CN209371993U - A kind of radial direction of magnetic suspension bearing and axial combination sensor structure - Google Patents
A kind of radial direction of magnetic suspension bearing and axial combination sensor structure Download PDFInfo
- Publication number
- CN209371993U CN209371993U CN201822124495.5U CN201822124495U CN209371993U CN 209371993 U CN209371993 U CN 209371993U CN 201822124495 U CN201822124495 U CN 201822124495U CN 209371993 U CN209371993 U CN 209371993U
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- rotor
- lantern ring
- sensor
- boss portion
- mounting hole
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Abstract
The utility model discloses a kind of radial directions of magnetic suspension bearing and axial combination sensor structure, rotor is made from rotor lantern ring of the material of different conductivity, boss portion is equipped on rotor, installation step is equipped in boss portion, rotor lantern ring is sheathed on installation step, and be interference fitted between rotor lantern ring and installation step, an end face of rotor lantern ring contacts on the step surface of installation step, and is bonded slit into reference line between rotor ferrule end face and installation step step surface；Sensor installation seat is coaxially set on the circumferencial direction of boss portion, and uniformly distributed there are four mounting hole in the circumferencial direction of sensor installation seat, the axis of mounting hole is coaxially disposed with the reference line；One displacement sensor is set in each mounting hole, and displacement sensor and reference line are coaxially disposed.The utility model eliminates shaft position sensor, keeps structure simple, saves space；Rotor structure is simple, shortens axial length, improves the intrinsic frequency of rotor.
Description
Technical field:
The utility model relates to a kind of radial directions of magnetic suspension bearing and axial combination sensor structure.
Background technique:
The radial direction of rotor 1 and axial change in displacement need to use two kinds of sensors (as schemed in existing magnetic suspension bearing
2), in 4 radial displacement transducers of the circumference uniform distribution of rotor 1, to detect the radial position of rotor.It is installed in 1 one end of rotor
One shaft position sensor, to detect the axial position of rotor.Using two sensors, the axial peace of rotor 1 can be made
Dress space becomes larger, and increases rotor axial length.
Utility model content:
The utility model is to provide a kind of radial direction of magnetic suspension bearing to solve the above-mentioned problems of the prior art
With axial combination sensor structure.
Technical solution used by the utility model has: a kind of radial direction of magnetic suspension bearing and axial combination sensor knot
Structure, including rotor, rotor lantern ring, displacement sensor and round sensor installation seat, the rotor and rotor lantern ring use
The material of different conductivity is made, and boss portion is equipped on rotor, and installation step is equipped in boss portion, and rotor lantern ring is sheathed on
It on installation step, and is interference fitted between rotor lantern ring and installation step, an end face of rotor lantern ring contacts at installation step
Be bonded slit into reference line on step surface, and between rotor ferrule end face and installation step step surface, rotor lantern ring it is another
The step surface of end face and boss portion is flush, and the outer circumference surface of rotor lantern ring and the outer circumference surface of boss portion are flush；
Sensor installation seat is coaxially set on the circumferencial direction of boss portion, uniformly distributed in the circumferencial direction of sensor installation seat
There are four mounting hole, the axis of mounting hole and the reference line are coaxially disposed；One displacement sensing is set in each mounting hole
Device, and displacement sensor and reference line are coaxially disposed.
Further, casting glue is filled in the mounting hole.
The utility model has the following beneficial effects:
1, shaft position sensor is eliminated, keeps structure simple, saves space；
2, rotor structure is simple, shortens axial length, improves the intrinsic frequency of rotor.
Detailed description of the invention:
Fig. 1 is the utility model structure chart.
Fig. 2 is the layout drawing of this peritrochanteric radial displacement transducer and shaft position sensor in the prior art.
Specific embodiment:
The utility model will be further described below with reference to the accompanying drawings.
Such as Fig. 1, a kind of radial direction of magnetic suspension bearing of the utility model and axial combination sensor structure, including rotor 1,
Rotor lantern ring 2, sensor installation seat 3 and displacement sensor 4, rotor 1 is from rotor lantern ring 2 using the material system of different conductivity
At equipped with boss portion 11 on rotor 1, equipped with installation step 12 in boss portion 11, rotor lantern ring 2 is sheathed on installation step 12
On, and be interference fitted between rotor lantern ring 2 and installation step 12.
The left end face of rotor lantern ring 2 contacts on the step surface of installation step 12, and 2 left end face of rotor lantern ring and peace
The fitting slit between 12 step surface of step is filled into reference line A.The right side of rotor lantern ring 2 and the step surface of boss portion 11 are mutually neat
Flat (i.e. the equal length of the length of rotor lantern ring 2 and installation step 12), the outer circumference surface of rotor lantern ring 2 and boss portion 11 outside
Periphery is flush (i.e. the deep equality of the thickness of rotor lantern ring 2 and installation step 12).
Sensor installation seat 3 is round, and sensor installation seat 3 is coaxially set on the circumferencial direction of boss portion 11,
The circumferencial direction of sensor installation seat 3 is uniformly distributed there are four mounting hole 31, and the axis of mounting hole 31 is coaxially set with the reference line A
It sets.One displacement sensor 4 is set in each mounting hole 31, and displacement sensor 4 and reference line A are coaxially disposed.
Casting glue is filled in mounting hole 31.
The utility model merges shaft position sensor with radial displacement transducer, has both axis with radial displacement transducer
To the function of displacement sensor.
Original shaft position sensor is eliminated, a lantern ring, the conductivity and original of collar material are increased on rotor
The conductivity for carrying out the material of rotor is different, is two kinds of electrical conductivity materials, rotor lantern ring one end and 12 step surface of installation step are close
Contact, contact position are overlapped with the axis of radial displacement transducer, when rotor-position axially changes, the numerical value of all the sensors
It is bigger than normal or less than normal, judge the axial position of rotor.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
It for art personnel, can also make several improvements without departing from the principle of this utility model, these improvement also should be regarded as
The protection scope of the utility model.
Claims (2)
1. a kind of radial direction of magnetic suspension bearing and axial combination sensor structure, it is characterised in that: including rotor (1), rotor
The sensor installation seat (3) of lantern ring (2), displacement sensor (4) and round,
The rotor (1) is made from rotor lantern ring (2) of the material of different conductivity, and boss portion is equipped on rotor (1)
(11), installation step (12) are equipped on boss portion (11), rotor lantern ring (2) is sheathed on installation step (12), and rotor set
It is interference fitted between ring (2) and installation step (12), an end face of rotor lantern ring (2) contacts at the step surface of installation step (12)
On, and slit is bonded into reference line (A), rotor lantern ring (2) between rotor lantern ring (2) end face and installation step (12) step surface
Other end and the step surface of boss portion (11) be flush, the outer circumference surface of rotor lantern ring (2) and the outer circle of boss portion (11)
Circumferential surface is flush；
Sensor installation seat (3) is coaxially set on the circumferencial direction of boss portion (11), in the circumference side of sensor installation seat (3)
To uniformly distributed there are four mounting hole (31), the axis and the reference line (A) of mounting hole (31) are coaxially disposed；In each mounting hole
(31) displacement sensor (4) is set in, and displacement sensor (4) and reference line (A) are coaxially disposed.
2. the radial direction of magnetic suspension bearing as described in claim 1 and axial combination sensor structure, it is characterised in that: described
Casting glue is filled in mounting hole (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822124495.5U CN209371993U (en) | 2018-12-18 | 2018-12-18 | A kind of radial direction of magnetic suspension bearing and axial combination sensor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822124495.5U CN209371993U (en) | 2018-12-18 | 2018-12-18 | A kind of radial direction of magnetic suspension bearing and axial combination sensor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209371993U true CN209371993U (en) | 2019-09-10 |
Family
ID=67833176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822124495.5U Active CN209371993U (en) | 2018-12-18 | 2018-12-18 | A kind of radial direction of magnetic suspension bearing and axial combination sensor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209371993U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458919A (en) * | 2018-12-18 | 2019-03-12 | 南京磁谷科技有限公司 | A kind of radial direction of magnetic suspension bearing and axial combination sensor structure |
| WO2020125105A1 (en) * | 2018-12-18 | 2020-06-25 | 南京磁谷科技有限公司 | Radial and axial combined sensor for magnetic bearing |
-
2018
- 2018-12-18 CN CN201822124495.5U patent/CN209371993U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458919A (en) * | 2018-12-18 | 2019-03-12 | 南京磁谷科技有限公司 | A kind of radial direction of magnetic suspension bearing and axial combination sensor structure |
| WO2020125105A1 (en) * | 2018-12-18 | 2020-06-25 | 南京磁谷科技有限公司 | Radial and axial combined sensor for magnetic bearing |
| WO2020125101A1 (en) * | 2018-12-18 | 2020-06-25 | 南京磁谷科技有限公司 | Radial and axial combined sensor structure of magnetic levitation bearing |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 99, Jinxin Middle Road, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Nanjing Cigu Technology Co., Ltd Address before: Nine No. 211102 Bamboo Road, Jiangning Development Zone, Nanjing, Jiangsu, 100 Patentee before: NANJING CIGU LIMITED Corp. |