CN215767662U - Radial air bearing testing arrangement - Google Patents
Radial air bearing testing arrangement Download PDFInfo
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- CN215767662U CN215767662U CN202122118964.4U CN202122118964U CN215767662U CN 215767662 U CN215767662 U CN 215767662U CN 202122118964 U CN202122118964 U CN 202122118964U CN 215767662 U CN215767662 U CN 215767662U
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- radial air
- bearing
- air bearing
- rotor
- sliding guide
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Abstract
The utility model relates to a bearing testing device, in particular to a radial air bearing testing device. The radial air bearing testing device comprises a motor, a rotor, an auxiliary support and a sliding guide rail, wherein the motor is arranged on a fixed platform, one end of the rotor is connected to the motor, the other end of the rotor is matched with the bearing, the bearing is arranged on the auxiliary support, the auxiliary support is arranged on the sliding guide rail, one end of the rotor matched with the bearing is provided with a locking nut, the locking nut is tightly combined with the auxiliary support, and the sliding guide rail is provided with a limiting tool for fixing the position of the auxiliary support on the sliding guide rail. The radial air bearing testing device can effectively meet the requirements of performance testing and reliability testing in the bearing development process.
Description
Technical Field
The utility model relates to a bearing testing device, in particular to a radial air bearing testing device.
Background
The bearing is one of the core parts of the rotating machinery, and compared with the traditional liquid lubrication bearing and a rolling bearing, the gas foil bearing has the characteristics of high rotating speed, low friction, low noise, no pollution, high working precision, high reliability and the like in the operation process. In the process of developing the gas bearing, besides simulation calculation, experimental research on performance or reliability is also the key of successful development, so a bearing testing device must be built.
At present, the domestic research on gas bearings is mainly focused in colleges and universities, testing devices are of inverted structures, namely, a rotor rotates, a bearing does not rotate, and the performance of the bearing is researched by adding load to the bearing. Wherein, according to the rotor drive mode can be divided into: the motor drive and the turbine drive have advantages and disadvantages, wherein the motor drive has the disadvantages of insufficient maximum working rotating speed, inconvenient bearing disassembly and assembly and model change and difficult coupler model selection, but also has the advantages of stable rotating speed control and large bearing capacity; the turbine drive has the advantages of high maximum rotating speed and convenient model change, but the turbine drive needs an additional compressed air supply device with higher pressure, and simultaneously has the disadvantages of high starting point requirement of the device, large rotating speed control deviation, limited air bearing size and the like.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide a radial air bearing testing device. The radial air bearing testing device can effectively meet the requirements of performance testing and reliability testing in the bearing development process.
In order to achieve the technical purpose, the embodiment of the utility model adopts the technical scheme that: the utility model provides a radial air bearing testing arrangement, includes motor, rotor, auxiliary stay and sliding guide, the motor is installed on fixed platform, the one end of rotor is connected on the motor, and the other end pairs with the bearing, the bearing sets up on the auxiliary stay, the auxiliary stay is installed on sliding guide, the rotor is provided with lock nut with the one end that the bearing pairs, lock nut with the auxiliary stay is tight, the last spacing frock that is provided with of sliding guide for fixed auxiliary stay is in the position on sliding guide.
Furthermore, a piece to be tested of the testing device is a radial air bearing, and the radial air bearing is installed in the middle of the rotor through a radial air bearing seat.
Further, the radial air bearing is provided with a corresponding sensor at the position needing to be tested for testing.
Further, the rotor is fixedly connected with the motor through the internal thread of the motor.
Further, the auxiliary support and the rotor have micrometer-scale jumping tolerance.
The technical scheme provided by the embodiment of the utility model has the following beneficial effects:
1) the radial air bearing testing device comprises a motor, a rotor, an auxiliary support and a sliding guide rail, wherein the motor is arranged on a fixed platform, one end of the rotor is connected to the motor through threads, the other end of the rotor is matched with the bearing, the bearing is arranged on the auxiliary support, the auxiliary support is arranged on the sliding guide rail, one end of the rotor matched with the bearing is provided with a locking nut, the locking nut is tightly combined with the auxiliary support, the sliding guide rail is provided with a limiting tool for fixing the position of the auxiliary support on the sliding guide rail, the testing device does not need a coupler, and the structure is simple.
2) The auxiliary supporting frame is arranged on the sliding guide rail, and the bearing is very convenient to disassemble, assemble and change the model.
3) The radial air bearing is arranged in the middle of the rotor through the radial air bearing seat, and compared with a mode that the bearing is directly sleeved at the extending end of the motor, the radial air bearing has the advantages that the auxiliary support is added, and the bearing capacity of the rotor is larger.
4) The rotor is directly connected with the motor, and the tail end of the motor is provided with an auxiliary support, so that the reliability of the device is higher.
Drawings
FIG. 1 is a schematic structural diagram of a radial air bearing test apparatus according to the present invention.
Description of reference numerals: 1-a motor; 2-a rotor; 3-radial air bearing seat; 4-radial air bearings; 5-auxiliary supporting; 6-a bearing; 7-locking the nut; 8-limiting the tool; 9-a sliding guide rail; 10-fixing the platform.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Example 1
As shown in fig. 1, a radial air bearing testing device, including motor 1, rotor 2, auxiliary stay 5 and sliding guide 9, motor 1 installs on fixed platform 10, the one end of rotor 2 is connected on motor 1, and the other end pairs with bearing 6, and the external diameter size of rotor 2 and the internal diameter size of bearing 6 mutually support promptly, bearing 6 sets up on auxiliary stay 5, auxiliary stay 5 is installed on sliding guide 9, the one end that rotor 2 pairs with bearing 6 is provided with lock nut 7, lock nut 7 with auxiliary stay 5 is tight, be provided with spacing frock 8 on sliding guide 9 for the position of fixed auxiliary stay 5 on sliding guide 9.
A piece to be tested of the testing device is a radial air bearing 4, and the radial air bearing 4 is installed in the middle of the rotor 2 through a radial air bearing seat 3.
And a corresponding sensor is arranged at the part of the radial air bearing 4 to be tested for testing.
The rotor 2 is fixedly connected with the motor 1 through the internal thread of the motor 1.
The auxiliary support 5 and the rotor 2 have run-out tolerance of the order of microns.
The working principle is as follows: when dismantling radial air bearing 4, screw down lock nut 7 earlier, loosen spacing frock 8, slide auxiliary stay 5 backward, break away from with rotor 2, can take off and change radial air bearing 4, then accomplish the installation of auxiliary stay 5, spacing frock 8, lock nut 7 again according to opposite order.
After the installation is finished, a corresponding sensor is installed at a position to be measured, and the installation and arrangement mode of the sensor can refer to the conventional practice in the prior art, namely, the air bearing test can be started.
The radial air bearing in this embodiment is a radial gas foil bearing.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (5)
1. The utility model provides a radial air bearing testing arrangement, its characterized in that, includes motor (1), rotor (2), auxiliary stay (5) and sliding guide (9), install on fixed platform (10) motor (1), the one end of rotor (2) is connected on motor (1), and the other end pairs with bearing (6), bearing (6) set up on auxiliary stay (5), auxiliary stay (5) are installed on sliding guide (9), rotor (2) are provided with lock nut (7) with bearing (6) paired one end, lock nut (7) with auxiliary stay (5) are tight, be provided with spacing frock (8) on sliding guide (9) for fixed auxiliary stay (5) the position on sliding guide (9).
2. The radial air bearing test device according to claim 1, wherein the test piece to be tested of the test device is a radial air bearing (4), and the radial air bearing (4) is installed at the middle part of the rotor (2) through a radial air bearing seat (3).
3. The radial air bearing test device according to claim 2, characterized in that the radial air bearing (4) is tested by installing corresponding sensors at the parts to be tested.
4. Radial air bearing test device according to claim 1, characterized in that the rotor (2) is fixedly connected to the electrical machine (1) by means of an internal thread of the electrical machine (1).
5. Radial air bearing test device according to claim 1, characterized in that the auxiliary support (5) and the rotor (2) have run-out tolerances in the order of micrometers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122118964.4U CN215767662U (en) | 2021-09-03 | 2021-09-03 | Radial air bearing testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122118964.4U CN215767662U (en) | 2021-09-03 | 2021-09-03 | Radial air bearing testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215767662U true CN215767662U (en) | 2022-02-08 |
Family
ID=80083557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122118964.4U Active CN215767662U (en) | 2021-09-03 | 2021-09-03 | Radial air bearing testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215767662U (en) |
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2021
- 2021-09-03 CN CN202122118964.4U patent/CN215767662U/en active Active
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