CN220726866U - Suspension bearing mechanism - Google Patents
Suspension bearing mechanism Download PDFInfo
- Publication number
- CN220726866U CN220726866U CN202322585074.3U CN202322585074U CN220726866U CN 220726866 U CN220726866 U CN 220726866U CN 202322585074 U CN202322585074 U CN 202322585074U CN 220726866 U CN220726866 U CN 220726866U
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- rotor
- bearing
- stator
- sleeved
- air bearing
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- 239000000725 suspension Substances 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 title claims abstract description 19
- 230000000712 assembly Effects 0.000 claims abstract description 12
- 238000000429 assembly Methods 0.000 claims abstract description 12
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The utility model belongs to the technical field of high-speed motor suspension bearings, and discloses a suspension bearing mechanism. Comprises a rotor; radial air bearing assemblies are respectively arranged at two ends of the rotor, an axial electromagnetic thrust bearing assembly is arranged below the air bearing assemblies arranged at the lower part of the rotor, a stator shell is arranged outside the rotor, a tooth sleeve and a stator are arranged between the stator shell and the rotor, the tooth sleeve is sleeved on the periphery of the stator, and the radial air bearing assemblies comprise an air bearing, a bearing seat and a fan; the air bearing is sleeved on the periphery of the rotor, the bearing seat is sleeved on the periphery of the air bearing, the fan is arranged on the inner side of the bearing seat and is inserted and connected with the bearing seat, and the fan is sleeved on the periphery of the rotor. The mechanism reduces the volume, has simple structure, reduces the cost and prolongs the service life.
Description
Technical Field
The utility model belongs to the technical field of high-speed motor suspension bearings, and relates to a suspension bearing mechanism.
Background
There are two types of suspension bearings, electromagnetic suspension bearings and air suspension bearings. The electromagnetic suspension bearing adopts an electromagnet to control a thrust disc to ensure that the axial position of the floating shaft is stable, and the radial position of the radial electromagnetic suspension bearing is stable and is matched with a sensor for use. Two sets of radial electromagnetic suspension bearings, one set of axial electromagnetic suspension bearings, three paths of displacement sensors and a control system are needed for the high-speed permanent magnet motor, so that the manufacturing cost of the electromagnet and the sensors is high, a large amount of debugging is needed in the later period to meet the use requirement, the relative cost and the manufacturing cost are high, the production period is long, and the productivity is low; the air bearing has limited bearing capacity, limited start and stop times, relatively short service life and cannot bear too high rotating speed.
Disclosure of Invention
The utility model aims to overcome the defects in the background art and provide a suspension bearing mechanism which has the advantages of reduced volume, simple structure, reduced cost and prolonged service life.
The technical scheme adopted for solving the technical problems is as follows: a suspension bearing mechanism comprising a rotor; radial air bearing assemblies are respectively arranged at two ends of the rotor, an axial electromagnetic thrust bearing assembly is arranged below the air bearing assemblies arranged at the lower part of the rotor, a stator shell is arranged outside the rotor, a tooth sleeve and a stator are arranged between the stator shell and the rotor, the tooth sleeve is sleeved on the periphery of the stator, and the radial air bearing assemblies comprise an air bearing, a bearing seat and a fan; the air bearing is sleeved on the periphery of the rotor, the bearing seat is sleeved on the periphery of the air bearing, the fan is arranged on the inner side of the bearing seat and is inserted and connected with the bearing seat, and the fan is sleeved on the periphery of the rotor.
The axial electromagnetic thrust bearing assembly comprises an electromagnet and a thrust disc, the thrust disc is arranged below the electromagnet, the electromagnet is sleeved on the rotor, the electromagnet is arranged on the rotor shell, and one end of the rotor shell is connected with the stator shell in a jogged manner; the other end of the rotor shell is fixedly connected with the end cover.
The upper center of the end cover is provided with a displacement sensor which is arranged below the end face of the rotor.
Further, the tooth sleeve is fixed on the stator shell, the stator is fixed on the tooth sleeve, the air bearing is fixed on the bearing seat, the bearing seat is fixed on the shell, the electromagnet is fixed on the shell, the thrust disc is fixed on the rotor, the end cover is fixed on the shell, and the displacement sensor is fixed on the end cover.
Further, the rotor is provided with a permanent magnet, and after the power is on, the stator coil generates corresponding magnetic pole attractive force, and the current rotates the rotor.
The mechanism is also provided with a PLC control system, the displacement sensor and the axial electromagnetic thrust bearing are respectively connected with the PLC control system, and the mechanism is not limited by a specific model, and the working function of the mechanism is realized.
Compared with the prior art, the utility model has the following beneficial effects:
the suspension bearing mechanism provided by the utility model expands the bearing range of the air bearing, reduces the volume of equipment, reduces the use amount of a sensor, reduces the requirement of a control system, shortens the debugging period, improves the productivity and reduces the production cost.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic illustration of a suspension bearing mechanism according to the present utility model.
In the figure, 1, a rotor, 2, an air bearing A,3, a bearing seat A,4, a fan A,5, a tooth sleeve, 6, a stator, 7, a stator shell, 8, a fan B,9, an air bearing B,10, a bearing seat B,11, an electromagnet, 12, a thrust disc, 13, a displacement sensor, 14, a rotor shell and 15, and an end cover.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to the following examples. The parts involved in the embodiment are not limited to a specific model, and the working functions of the parts can be realized.
Example 1
A suspension bearing mechanism, as shown in fig. 1, comprises a rotor 1; radial air bearing assemblies are respectively arranged at two ends of the rotor 1, an axial electromagnetic thrust bearing assembly is arranged below the air bearing assemblies arranged at the lower part of the rotor, a stator shell 7 is arranged outside the rotor 1, a tooth sleeve 5 and a stator 6 are arranged between the stator shell 7 and the rotor 1, the tooth sleeve 5 is sleeved on the periphery of the stator 6, and the radial air bearing assemblies comprise an air bearing, a bearing seat and a fan; the air bearing sleeve is arranged on the periphery of the rotor 1, the bearing sleeve is arranged on the periphery of the air bearing, the fan is arranged on the inner side of the bearing seat and is inserted and connected with the bearing seat, and the fan is arranged on the periphery of the rotor 1 in a sleeved mode.
The axial electromagnetic thrust bearing assembly comprises an electromagnet 11 and a thrust disc 12, the thrust disc 12 is arranged below the electromagnet 11, the electromagnet 11 is sleeved on the rotor 1, the electromagnet 11 is arranged on a rotor shell 14, and one end of the rotor shell 14 is connected with the stator shell 7 in a jogged manner; the other end of the rotor housing 14 is fixedly connected with an end cover 15.
The displacement sensor 13 is arranged at the upper center of the end cover 15, and the displacement sensor 13 is arranged below the end face of the rotor 1.
During the concrete preparation, firstly, the stator 6 is arranged in the tooth sleeve 5, the stator and the tooth sleeve are arranged in the stator shell 7, the bearing seat, the air bearing and the electromagnet 11 are sequentially arranged in the rotor shell 14 from top to bottom, the fan is sleeved on the periphery of the rotor 1, the rotor 1 with one end of the fan is inserted into the rotor shell 14 with the mounted bearing seat, the air bearing and the electromagnet, the thrust disc 12 is placed in the rotor shell 14 to be mounted on the rotor 1, the end cover 15 is mounted on the rotor shell 14, the rotor 1 is inserted into the stator 6, the other fan is sleeved on the rotor 1, the air bearing is mounted on the bearing seat, the air bearing and the bearing seat are sleeved on the rotor 1 and are externally mounted on the stator shell 7, the end cover 15 is mounted with the displacement sensor 13, and the mounting production preparation is completed.
When the device is particularly used, the electromagnet 11 generates attractive force to attract the thrust disc 12, and the thrust disc 12 supports the rotor 1, the fan A4 and the fan B8; the attraction force generated by the electromagnet 11 acts together with the gravity of the thrust disc 12, the gravity of the fan A4 and the gravity of the fan B8 to suspend the thrust disc 12, a certain gap is reserved between the attraction force and the electromagnet 11, the displacement sensor 13 detects the upward floating displacement of the rotor 1, and the magnetic force of the electromagnet 11 is regulated by the control system to keep the thrust disc 12 and the rotor 1 at the required working positions. The stator 6 is powered to generate operation attraction to drive the rotor 1 to rotate, so that the use purpose can be achieved, the thrust disc 12 and the rotor 1 float up integrally, and the displacement sensor 13 acts to stabilize the thrust disc and the rotor in the axial direction, so that the use purpose can be achieved.
While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.
Claims (6)
1. A suspension bearing mechanism, characterized by comprising a rotor (1); radial air bearing assemblies are respectively arranged at two ends of the rotor (1), an axial electromagnetic thrust bearing assembly is arranged below the air bearing assemblies arranged at the lower part of the rotor, a stator shell (7) is arranged outside the rotor (1), a tooth sleeve (5) and a stator (6) are arranged between the stator shell (7) and the rotor (1), the tooth sleeve (5) is sleeved on the periphery of the stator (6), and the radial air bearing assemblies comprise an air bearing, a bearing seat and a fan; the air bearing is sleeved on the periphery of the rotor (1), the bearing seat is sleeved on the periphery of the air bearing, the fan is arranged on the inner side of the bearing seat and is inserted and connected with the bearing seat, and the fan is sleeved on the periphery of the rotor (1).
2. A suspension bearing mechanism according to claim 1, characterized in that the axial electromagnetic thrust bearing assembly comprises an electromagnet (11), a thrust disc (12), the thrust disc (12) being arranged below the electromagnet (11).
3. A suspension bearing mechanism according to claim 2, characterized in that the electromagnet (11) is sleeved on the rotor (1).
4. A suspension bearing mechanism according to claim 3, characterized in that the electromagnet (11) is arranged on the rotor housing (14).
5. A suspension bearing mechanism according to claim 4, wherein one end of the rotor housing (14) is connected to the stator housing (7) in a fitting manner; the other end of the rotor shell (14) is fixedly connected with the end cover (15).
6. A suspension bearing mechanism according to claim 5, characterized in that a displacement sensor (13) is arranged centrally on the end cap (15), the displacement sensor (13) being arranged below the end face of the rotor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322585074.3U CN220726866U (en) | 2023-09-22 | 2023-09-22 | Suspension bearing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322585074.3U CN220726866U (en) | 2023-09-22 | 2023-09-22 | Suspension bearing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220726866U true CN220726866U (en) | 2024-04-05 |
Family
ID=90500474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322585074.3U Active CN220726866U (en) | 2023-09-22 | 2023-09-22 | Suspension bearing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220726866U (en) |
-
2023
- 2023-09-22 CN CN202322585074.3U patent/CN220726866U/en active Active
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