CN214274249U - Multi-disc non-contact permanent magnet thrust bearing - Google Patents
Multi-disc non-contact permanent magnet thrust bearing Download PDFInfo
- Publication number
- CN214274249U CN214274249U CN202022588752.8U CN202022588752U CN214274249U CN 214274249 U CN214274249 U CN 214274249U CN 202022588752 U CN202022588752 U CN 202022588752U CN 214274249 U CN214274249 U CN 214274249U
- Authority
- CN
- China
- Prior art keywords
- bearing
- disc
- main shaft
- axial
- thrust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The utility model discloses a polydisc formula non-contact permanent magnetism thrust bearing belongs to power transmission technical field. The bearing comprises a dynamic magnetic thrust disc, a static magnetic thrust disc, an axial positioning bearing, a radial positioning bearing, a main shaft and a bearing seat; the static magnetic thrust disc is fixed in the shell and is in a static motionless state; the dynamic magnetic thrust disc is fixed on the main shaft and rotates or axially floats along with the main shaft; two ends of the main shaft are arranged on the shell through an axial positioning bearing and a radial positioning bearing, and power is transmitted to a load by the power device; the bearing seat connects the bearing with the base. The utility model discloses a thrust's non-contact transmission avoids thrust bearing contact friction wearing and tearing, reduces the screw vibration and transmits to the hull.
Description
Technical Field
The utility model relates to a power transmission technical field, concretely relates to polydisc formula non-contact permanent magnetism thrust bearing.
Background
The thrust bearing is used as an important device for transmitting thrust of a propulsion shafting, and transmission of propeller thrust to a ship body is realized. The traditional thrust bearing has the transmission mode that a thrust disc is in contact with a thrust pad to transmit thrust, and on one hand, the transmission mode of the thrust has contact friction, so that the abrasion of parts of equipment can be caused, and the service life of the equipment can be reduced; on the other hand, the traditional thrust bearing can transmit the longitudinal vibration of the propeller to the ship body, and is not beneficial to the vibration control of the ship body.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a polydisc formula non-contact permanent magnetism thrust bearing realizes the non-contact transmission of thrust, avoids thrust bearing contact friction wearing and tearing, reduces the screw vibration and transmits to the hull.
A multi-disc non-contact permanent magnet thrust bearing comprises a dynamic magnetic thrust disc, a static magnetic thrust disc, an axial positioning bearing, a radial positioning bearing, a main shaft and a bearing seat;
the static magnetic thrust disc is fixed in the shell and is in a static motionless state; the dynamic magnetic thrust disc is fixed on the main shaft and rotates or axially floats along with the main shaft; the axial positioning bearing mainly bears part of instability residual axial force; the radial positioning bearing bears part of the radial force of instability; two ends of the main shaft are arranged on the shell through an axial positioning bearing and a radial positioning bearing, and power is transmitted to a load by the power device; the bearing seat connects the bearing with the base.
Further, an axial positioning push plate is arranged between the axial positioning bearing and the radial positioning bearing, and the axial positioning push plate is used for positioning the axial displacement of the main shaft.
Furthermore, independent disc-shaped structures on the dynamic magnetic thrust disc and the static magnetic thrust disc are in non-contact embedded fit with each other, and the disc-shaped structures are distributed at equal intervals along the axial direction of the main shaft.
Has the advantages that:
1. the utility model discloses a be fixed in the epaxial dynamic magnetic thrust dish of main and be fixed in the magnetic force that produces between the inside static magnetic thrust dish of casing and transmit thrust, can transmit axial force contactless to casing to reduce the wearing and tearing of bearing, prolonged the life of bearing.
2. The utility model adopts a multi-group disc type thrust structure, so that the structure is compact, small and simple; each part adopts the modularized design, can realize quick installation and the dismantlement of equipment.
Drawings
Fig. 1 is a structure diagram of the multi-disc non-contact permanent magnetic thrust bearing of the present invention.
The device comprises a dynamic magnetic thrust disc, a static magnetic thrust disc, a 3-axial positioning bearing, a 4-axial positioning push plate, a 5-radial positioning bearing, a 6-shell, a 7-bearing seat and an 8-main shaft, wherein the dynamic magnetic thrust disc is arranged on the main shaft, and the main shaft is arranged on the main shaft.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of examples.
As shown in the attached drawing 1, the utility model provides a polydisc formula non-contact permanent magnetism thrust bearing, bearing include dynamic magnetism thrust disc 1, static magnetism thrust disc 2, axial positioning bearing 3, axial positioning push pedal 4, radial positioning bearing 5, casing 6, bearing frame 7 and main shaft 8.
The static magnetic thrust disc 2 is fixed in the shell 6 and is in a static motionless state; the dynamic magnetic thrust disc is fixed on the main shaft 8 and rotates or axially floats along with the main shaft 8; the axial positioning bearing 3 mainly bears part of unstable residual axial force, and the radial positioning bearing 5 bears part of unstable radial force; two ends of a main shaft 8 are arranged on a shell 6 through an axial positioning bearing 3 and a radial positioning bearing 5, an axial positioning push plate 4 is arranged between the axial positioning bearing 3 and the radial positioning bearing 5, the axial positioning push plate 4 positions the axial displacement of the main shaft 8, and the main shaft 8 transmits power to a load through a power device; the bearing housing 7 is fixed below the housing 6 and connects the bearing with the base.
When the thrust bearing is not started to work, the working clearance between the dynamic magnetic thrust disc 1 and the left side face of the static magnetic thrust disc 2 is 2mm, at the moment, the axial working force tends to be in a zero state, and the axial force is basically in a balanced state.
When the dynamic magnetic thrust plate 1 starts to work normally, the dynamic magnetic thrust plate 1 moves along with the main shaft 8 to generate axial working force to move rightwards, when the working gap to the right is changed from 17mm to 2mm, the axial magnetic thrust generated by the interaction of the dynamic magnetic thrust plate 1 and the static magnetic thrust plate 2 overcomes the axial working thrust and is basically in a balanced state, when the working gap with overlarge axial working force is changed into 1mm, the magnetic thrust is continuously increased to overcome the axial working thrust, and meanwhile, the axial positioning bearing 3 on the right is in contact with the axial positioning push plate 4 to overcome part of residual axial working thrust and play a role in axial positioning.
When the magnetic thrust disc is reversely rotated, the direction of working axial force is opposite, the dynamic magnetic thrust disc 1 moves leftwards to be close to the static magnetic thrust disc 2, when the working gap is 1mm, the axial force tends to be balanced, when the axial counter force is too large and the gap is 0.8mm, the magnetic counter thrust force continues to be increased to overcome the axial force, meanwhile, the left axial positioning bearing 3 is in contact with the axial positioning push plate 4 to play a role, and the axial positioning effect is achieved while the residual axial force is overcome.
In summary, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A multi-disc non-contact permanent magnet thrust bearing is characterized in that the bearing comprises a dynamic magnetic thrust disc, a static magnetic thrust disc, an axial positioning bearing, a radial positioning bearing, a main shaft and a bearing seat;
the static magnetic thrust disc is fixed in the shell and is in a static motionless state; the dynamic magnetic thrust disc is fixed on the main shaft and rotates or axially floats along with the main shaft; the axial positioning bearing mainly bears part of instability residual axial force; the radial positioning bearing bears part of the radial force of instability; two ends of the main shaft are arranged on the shell through an axial positioning bearing and a radial positioning bearing, and power is transmitted to a load by the power device; the bearing seat connects the bearing with the base.
2. The multi-disc non-contact permanent magnetic thrust bearing of claim 1 wherein an axial positioning thrust plate is mounted between the axial and radial positioning bearings, the axial positioning thrust plate positioning axial displacement of the main shaft.
3. The multi-disc non-contact permanent magnetic thrust bearing of claim 2, wherein the independent disc structures on the dynamic magnetic thrust disc and the static magnetic thrust disc are in non-contact embedded fit with each other, and the disc structures are distributed at equal intervals along the axial direction of the main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022588752.8U CN214274249U (en) | 2020-11-10 | 2020-11-10 | Multi-disc non-contact permanent magnet thrust bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022588752.8U CN214274249U (en) | 2020-11-10 | 2020-11-10 | Multi-disc non-contact permanent magnet thrust bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214274249U true CN214274249U (en) | 2021-09-24 |
Family
ID=77775070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022588752.8U Active CN214274249U (en) | 2020-11-10 | 2020-11-10 | Multi-disc non-contact permanent magnet thrust bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214274249U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126777A (en) * | 2022-06-08 | 2022-09-30 | 中国船舶重工集团公司第七一九研究所 | Thrust bearing and ship propeller |
-
2020
- 2020-11-10 CN CN202022588752.8U patent/CN214274249U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126777A (en) * | 2022-06-08 | 2022-09-30 | 中国船舶重工集团公司第七一九研究所 | Thrust bearing and ship propeller |
| CN115126777B (en) * | 2022-06-08 | 2024-05-28 | 中国船舶重工集团公司第七一九研究所 | Thrust bearing and ship propeller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2001248631A1 (en) | Bearings | |
| CN214274249U (en) | Multi-disc non-contact permanent magnet thrust bearing | |
| CN113320673A (en) | Thrust bearing device based on active thrust balancing technology | |
| CN201561052U (en) | Flange-type rolling spline pair | |
| CN203604547U (en) | Reduction gearbox of turboshaft engine | |
| CN110925306A (en) | Integrated magnetic suspension bearing | |
| CN201810592U (en) | High-power magnetic drive pump thrust structure | |
| US11415184B2 (en) | Axle and vehicle | |
| CN113323900B (en) | Energy-saving high-pressure fluidized fan device for circulating fluidized bed boiler | |
| CN211077387U (en) | Bidirectional rotation backstop and permanent magnet roller with same | |
| CN214197047U (en) | Transmission shaft electric device with brake assembly | |
| CN108506365A (en) | A kind of novel clutch | |
| CN210943524U (en) | Backstop and have its permanent magnetism cylinder | |
| CN208782708U (en) | A kind of contactless multi stage magnetic shaft coupling | |
| CN109194089A (en) | A kind of contactless multi stage magnetic shaft coupling | |
| CN201944167U (en) | Self-locking mechanism | |
| JP4844923B2 (en) | Motor with built-in electromagnetic clutch | |
| CN217422119U (en) | Novel excavator transfer case | |
| CN218030675U (en) | Non-shaft seal permanent magnet transmission gas-liquid mixed medium delivery pump | |
| CN215293464U (en) | Zero-friction magnetic suspension planetary transmission mechanism | |
| CN211574035U (en) | Integrated magnetic suspension bearing | |
| CN207660888U (en) | A kind of emulsification pump machine envelope | |
| CN214360532U (en) | Oxygen increasing machine | |
| CN218913634U (en) | Bilateral coupling axial nutation magnetic speed reducer | |
| CN209762250U (en) | Multi-spring mechanical seal assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |