CN217716932U - Test device for testing dynamic performance of sliding bearing - Google Patents
Test device for testing dynamic performance of sliding bearing Download PDFInfo
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- CN217716932U CN217716932U CN202221081151.0U CN202221081151U CN217716932U CN 217716932 U CN217716932 U CN 217716932U CN 202221081151 U CN202221081151 U CN 202221081151U CN 217716932 U CN217716932 U CN 217716932U
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Abstract
An object of the utility model is to provide a test device for slide bearing dynamic behavior test, including test device casing, high-speed axle, dead load loading device, dynamic excitation loading device, respectively support in the test device casing through a antifriction bearing around the high-speed axle, slide bearing arranges in the middle of the high-speed axle of two antifriction bearing fixed stay, and dead load loading device, dynamic excitation loading device connect slide bearing through the flexible rod respectively. The utility model discloses can simulate slide bearing and bearing the displacement condition under the increase operating load state to but accurate test load for the analysis reachs the dynamic behavior under the slide bearing simulation operating condition.
Description
Technical Field
The utility model relates to a bearing test device, specifically speaking are slide bearing dynamic behavior test device.
Background
With the technical progress, rotating machinery such as a gear box, a large-scale turbo generator set, a compressor, a centrifugal pump and the like all develop rapidly in a high-speed direction, a series of dynamic problems such as critical rotating speed of a rotor, bearing whirl, bearing oscillation, rotor instability and the like are caused by the rising of the rotating speed, and serious consequences are often generated.
The dynamic parameters such as rigidity, damping and the like of the sliding bearing are not only related to the structural form, but also closely related to bearing load, lubricating oil parameters, machining precision and the like, the accurate calculation difficulty is high, but the performance deviation of the sliding bearing often brings serious consequences to the dynamic evaluation of a rotor system, the dynamic performance of the sliding bearing is closely related to system load, and the system test difficulty is high.
Disclosure of Invention
An object of the utility model is to provide a test device that is used for simulating the load characteristic that slide bearing bore and measure atress and the deformation condition in the actual work to effectively solve a slide bearing dynamic behavior test difficult problem and is used for slide bearing dynamic behavior test.
The purpose of the utility model is realized like this:
the utility model relates to a test device for slide bearing dynamic behavior test, characterized by: the device comprises a test device shell, a high-speed shaft, a static load loading device and a dynamic excitation loading device, wherein the front and the back of the high-speed shaft are respectively supported in the test device shell through a rolling bearing, a sliding bearing is arranged between the high-speed shafts fixedly supported by the two rolling bearings, and the static load loading device and the dynamic excitation loading device are respectively connected with the sliding bearing through flexible rods.
The utility model discloses can also include:
1. an eddy current sensor is arranged on the shell of the sliding bearing.
2. An acceleration sensor is arranged on a shell of the rolling bearing.
The utility model has the advantages that: the utility model discloses can simulate slide bearing and bearing the displacement condition under the increase operating load state to but accurate test load for the analysis reachs the dynamic behavior under the slide bearing simulation operating condition.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a side view of the present invention.
Detailed Description
The invention will be described in more detail below by way of example with reference to the accompanying drawings:
with reference to fig. 1-2, the utility model discloses a test device casing 1, static load loading device 2, dynamic excitation loading device 3, slide bearing 4, parts such as high-accuracy antifriction bearing 5 and high-speed axle 6, high-speed axle 6 is preceding, respectively support through a high-accuracy antifriction bearing 5 in the back, accurate positioning high-speed axle 6, slide bearing 4 arranges between two antifriction bearing 6, static load loading device 2 and dynamic load loading device 3 act on slide bearing 4 through the flexible pole directly, slide bearing 4 receives static load, can freely move after the dynamic load effect, displacement sensor arranges on the bearing housing, test bearing is the displacement change of high-speed axle 6 relatively, antifriction bearing 5 supports position casing department and arranges acceleration sensor 7, a vibration displacement for the analysis transmission shaft, displacement compensation when being used for the dynamic behavior to calculate; the displacement change conditions caused by different loading forces can be calculated through the measurement of the excitation force and the corresponding displacement, and the displacement change conditions are used for calculating the rigidity and the damping characteristics of the sliding bearing 4 under different static loading and dynamic loading, so that the measurement of the dynamic characteristics of the sliding bearing 4 is realized.
The sliding bearing 4 is arranged between the high-speed shafts 6 fixedly supported by the two high-precision rolling bearings 5, and the sliding bearing 4 is not fixedly supported;
the static and dynamic loading device is connected to the shell of the sliding bearing 4 through a flexible rod, and can load the sliding bearing 4 without influencing the movement of the sliding bearing 4;
the eddy current sensor 8 is arranged on the shell of the sliding bearing 4 and is used for testing the relative displacement of the sliding bearing relative to the high-speed shaft 6 under different static and dynamic loads;
the vibration acceleration sensor is arranged on the rolling bearing 5 shell and used for testing the vibration displacement of the rolling bearing 5 shell and for displacement compensation when the dynamic stiffness of the bearing is accurately calculated.
Claims (3)
1. A test device for testing dynamic performance of a sliding bearing is characterized in that: the device comprises a test device shell, a high-speed shaft, a static load loading device and a dynamic excitation loading device, wherein the front and the back of the high-speed shaft are respectively supported in the test device shell through a rolling bearing, a sliding bearing is arranged between the high-speed shafts fixedly supported by the two rolling bearings, and the static load loading device and the dynamic excitation loading device are respectively connected with the sliding bearing through flexible rods.
2. The test device for the dynamic performance test of the sliding bearing according to claim 1, which is characterized in that: an eddy current sensor is arranged on the shell of the sliding bearing.
3. The test device for the dynamic performance test of the sliding bearing according to claim 1, which is characterized in that: an acceleration sensor is arranged on a shell of the rolling bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221081151.0U CN217716932U (en) | 2022-05-07 | 2022-05-07 | Test device for testing dynamic performance of sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221081151.0U CN217716932U (en) | 2022-05-07 | 2022-05-07 | Test device for testing dynamic performance of sliding bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217716932U true CN217716932U (en) | 2022-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202221081151.0U Active CN217716932U (en) | 2022-05-07 | 2022-05-07 | Test device for testing dynamic performance of sliding bearing |
Country Status (1)
| Country | Link |
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| CN (1) | CN217716932U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116106010A (en) * | 2023-02-25 | 2023-05-12 | 西安交通大学 | Sliding bearing performance test experimental device |
-
2022
- 2022-05-07 CN CN202221081151.0U patent/CN217716932U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116106010A (en) * | 2023-02-25 | 2023-05-12 | 西安交通大学 | Sliding bearing performance test experimental device |
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