CN220525331U - Bearing fretting wear test fixture - Google Patents
Bearing fretting wear test fixture Download PDFInfo
- Publication number
- CN220525331U CN220525331U CN202322235300.5U CN202322235300U CN220525331U CN 220525331 U CN220525331 U CN 220525331U CN 202322235300 U CN202322235300 U CN 202322235300U CN 220525331 U CN220525331 U CN 220525331U
- Authority
- CN
- China
- Prior art keywords
- bearing
- rotating shaft
- connecting rod
- fretting wear
- eccentric wheel
- 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.)
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Links
- 238000012360 testing method Methods 0.000 title claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a bearing fretting wear testing tool which comprises a workbench, a motor and a bearing seat, wherein the motor and the bearing seat are fixed on the workbench, a rotating shaft is arranged in the bearing seat in a penetrating manner, a bearing to be detected is arranged between the rotating shaft and the bearing seat, the rotating shaft rotates relative to the bearing seat through the bearing to be detected, an eccentric wheel is fixed on an output shaft of the motor, the eccentric wheel is connected with the rotating shaft through a connecting rod, one end of the connecting rod is provided with a strip-shaped hole along the length direction of the connecting rod, an eccentric pin on the eccentric wheel is arranged in the strip-shaped hole, the other end of the connecting rod is fixedly connected with the rotating shaft, and the eccentric wheel rotates to drive the connecting rod to swing up and down through the cooperation of the eccentric pin and the strip-shaped hole. The utility model is specially used for detecting the small-angle fretting wear of the bearing, and the device is simple and easy to manufacture and has good detection effect.
Description
Technical Field
The utility model relates to a testing device for a bearing.
Background
The bearing generally realizes the relative rotation function, but under certain working conditions, only a small angle rotation is needed, and the design of the existing bearing is basically suitable for the rotation working conditions. Under the condition of small-angle rotation, grease is not backfilled to the channel, so that the service life of the bearing can be greatly reduced, the bearing needs to be adaptively improved, the bearing is suitable for the small-angle rotation working condition, continuous testing is required, and no special testing equipment exists in the prior art.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a bearing fretting wear testing tool for small-angle rotation.
The utility model is realized by the following technical scheme:
the utility model provides a bearing fretting wear test fixture, includes the workstation, is fixed in motor and the bearing frame on the workstation, its characterized in that: a rotating shaft is arranged in the bearing seat in a penetrating manner, a bearing to be detected is arranged between the rotating shaft and the bearing seat, the rotating shaft rotates relative to the bearing seat through the bearing to be detected, an eccentric wheel is fixed on an output shaft of the motor, the eccentric wheel is connected with the rotating shaft through a connecting rod, a strip-shaped hole is formed in one end of the connecting rod along the length direction of the connecting rod, an eccentric pin on the eccentric wheel is arranged in the strip-shaped hole, the other end of the connecting rod is fixedly connected with the rotating shaft, and the eccentric wheel rotates to drive the connecting rod to swing up and down through the cooperation of the eccentric pin and the strip-shaped hole.
Preferably, the other end of the connecting rod is provided with a mounting hole, one side of the mounting hole is provided with an adjusting gap communicated with the outside, the adjusting gap is provided with a fastening screw, and the rotating shaft is arranged in the mounting hole and is locked by the fastening screw.
Preferably, the rotating shaft is provided with a boss, and the number of the bearings to be detected is 2 and the bearings to be detected are respectively positioned at two sides of the boss.
Preferably, the bearing housing includes a cylindrical body and end caps fixed to both ends by screws.
Preferably, the motor is connected to a PLC controller.
According to the utility model, the eccentric wheel drives the connecting rod to swing, and the connecting rod swings to drive the rotating shaft to rotate at a small angle, so that the bearing is rotated at a small angle, the micro-motion working condition is simulated, the rotating speed of the motor is controlled, and after a certain period of continuous uninterrupted test, whether the bearing is qualified is detected.
The utility model has the beneficial effects that: the utility model is specially used for detecting the small-angle fretting wear of the bearing, and the device is simple and easy to manufacture and has good detection effect.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of the rotating shaft of the present utility model.
Fig. 3 is a schematic side view of the connecting rod of the present utility model.
Description of the embodiments
The utility model is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1, 2 and 3, the bearing fretting wear testing tool comprises a workbench, a motor 1 fixed on the workbench and a bearing seat 2. A rotating shaft 11 is arranged in the middle of the bearing seat in a penetrating way, a bearing 12 to be detected is arranged between the rotating shaft 11 and the bearing seat, and the rotating shaft 11 rotates relative to the bearing seat 2 through the bearing 12 to be detected. An eccentric wheel 6 is fixed on an output shaft 7 of the motor, the eccentric wheel 6 is connected with a rotating shaft 11 through a connecting rod 4, a bar-shaped hole 8 is formed in one end of the connecting rod along the length direction of the connecting rod, and an eccentric pin 5 on the eccentric wheel is arranged in the bar-shaped hole 8.
The other end of the connecting rod is provided with a mounting hole 9, one side of the mounting hole is provided with an adjusting gap 10 communicated with the outside, the adjusting gap is provided with a fastening screw, and a rotating shaft 11 is arranged in the mounting hole 9 and is locked by the fastening screw 13. The size of the mounting hole and the fastening degree can be adjusted by adjusting the adjusting gap and the fastening screw.
The eccentric wheel rotates to drive the up-and-down swinging of the connecting rod through the cooperation of the eccentric pin 5 and the strip-shaped hole 8, the connecting rod 4 is fixedly connected with the rotating shaft, and the up-and-down swinging of the connecting rod 4 drives the rotating shaft to rotate at a small angle and also drives the bearing to rotate at a small angle.
The rotating shaft is provided with a boss 13, and the bearings 12 to be detected are provided with 2 and are respectively positioned at two sides of the boss. The bearing housing includes a cylindrical body and end caps 3 fixed to both ends by screws. The motor is connected with the PLC for control.
The motor is controlled by the PLC to work, the rotation speed of the motor is controlled according to different working conditions, the motor output shaft rotates to drive the eccentric wheel 6 to rotate, the eccentric pin 5 revolves, the eccentric pin is arranged in the bar-shaped hole 8 of the connecting rod, the eccentric pin revolves to drive the connecting rod to swing up and down, the other end of the connecting rod is fixedly connected with the rotating shaft, the up and down swing of the connecting rod 4 drives the rotating shaft to rotate back and forth at a small angle, so that the small-angle micro-motion working condition of the bearing is simulated, continuous work is carried out for a certain time, the bearing performance is monitored, and the small-angle micro-motion abrasion detection of the bearing is realized.
The utility model is specially used for detecting the small-angle fretting wear of the bearing, and the device is simple and easy to manufacture and has good detection effect.
Claims (5)
1. The utility model provides a bearing fretting wear test fixture, includes the workstation, is fixed in motor and the bearing frame on the workstation, its characterized in that: a rotating shaft is arranged in the bearing seat in a penetrating manner, a bearing to be detected is arranged between the rotating shaft and the bearing seat, the rotating shaft rotates relative to the bearing seat through the bearing to be detected, an eccentric wheel is fixed on an output shaft of the motor, the eccentric wheel is connected with the rotating shaft through a connecting rod, a strip-shaped hole is formed in one end of the connecting rod along the length direction of the connecting rod, an eccentric pin on the eccentric wheel is arranged in the strip-shaped hole, the other end of the connecting rod is fixedly connected with the rotating shaft, and the eccentric wheel rotates to drive the connecting rod to swing up and down through the cooperation of the eccentric pin and the strip-shaped hole.
2. The bearing fretting wear test fixture of claim 1, wherein: the other end of the connecting rod is provided with a mounting hole, one side of the mounting hole is provided with an adjusting gap communicated with the outside, the adjusting gap is provided with a fastening screw, and the rotating shaft is arranged in the mounting hole and is locked through the fastening screw.
3. The bearing fretting wear test fixture of claim 2, wherein: the rotating shaft is provided with a boss, and the number of the bearings to be detected is 2 and the bearings to be detected are respectively located at two sides of the boss.
4. A bearing fretting wear test fixture according to claim 3, wherein: the bearing seat comprises a cylindrical main body and end covers fixed at two ends through screws.
5. The bearing fretting wear test fixture according to claim 4, wherein: the motor is connected with the PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322235300.5U CN220525331U (en) | 2023-08-21 | 2023-08-21 | Bearing fretting wear test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322235300.5U CN220525331U (en) | 2023-08-21 | 2023-08-21 | Bearing fretting wear test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220525331U true CN220525331U (en) | 2024-02-23 |
Family
ID=89934307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322235300.5U Active CN220525331U (en) | 2023-08-21 | 2023-08-21 | Bearing fretting wear test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220525331U (en) |
-
2023
- 2023-08-21 CN CN202322235300.5U patent/CN220525331U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |