CN215296661U - Fatigue test device for universal bearing - Google Patents
Fatigue test device for universal bearing Download PDFInfo
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- CN215296661U CN215296661U CN202121475660.7U CN202121475660U CN215296661U CN 215296661 U CN215296661 U CN 215296661U CN 202121475660 U CN202121475660 U CN 202121475660U CN 215296661 U CN215296661 U CN 215296661U
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Abstract
The utility model belongs to the technical field of fatigue test devices, and discloses a fatigue test device of an universal bearing, which is provided with an iron floor; an L plate is fixed on one side of the iron floor through foundation bolts, a test piece fixing clamp is fixed in the middle of the L plate through bolts, one end of a test piece is fixed by the test piece fixing clamp through a mounting pin A, the other side of the test piece is fixed to a test piece connecting clamp through a mounting pin B, the test piece connecting clamp is connected with a load actuating cylinder through a connecting rod of the load actuating cylinder, and the bottom of the load actuating cylinder is connected with a pulley mounting plate through bolts; the utility model discloses an increase guider's assistance, regard load actuator as angle pivoted partly, be connected load actuator and the guide rail on the guider through pulley mounting panel and pulley, realize that the test piece rotates around universal bearing.
Description
Technical Field
The utility model belongs to the technical field of fatigue test device, especially, relate to an universal bearing's fatigue test device.
Background
At present, in the fields of aviation research and development and the like, for some parts or equipment which are in cyclic use, fatigue tests under the simulated actual working environment are needed to be carried out during design and research and development, so that a test environment close to the actual working environment needs to be provided for a test piece in a laboratory to detect the performance of a product; at present, fatigue test equipment special for testing the universal bearing is lacked at home and abroad, and when the fatigue test is carried out in a use environment, because the static load requirement and the angle swing requirement are met at the same time, the conventional test method cannot meet the test conditions; under the condition that the load actuating cylinder applies static load to the test piece, the requirement that the test piece rotates around the universal bearing cannot be met simultaneously due to the fact that the test piece is fixed.
Through the above analysis, the problems and defects of the prior art are as follows: the existing fatigue test equipment cannot meet the requirement of simultaneously applying rotation to a test piece in the vertical direction and cannot meet the test condition due to the problem of a fixing mode under the condition of applying static load in the axial direction.
The difficulty in solving the above problems and defects is: two kinds of operating modes of static load and rotation are applyed simultaneously to two universal bearing to applying the operating mode in two different test directions, conventional test equipment can't satisfy experimental requirement, so need use test equipment to carry out the application of angle rotation operating mode to the test piece when exerting the static load to the test piece, through auxiliary assembly.
The significance of solving the problems and the defects is as follows: the test piece can be simulated to bear static load and angle rotation test environments simultaneously, the test piece real environment is attached, the test result is more real and reliable compared with the test result obtained by respectively carrying out superposition examination on the test piece under two working conditions, the service life of the test piece can be reflected, and a real basis is provided for designers.
SUMMERY OF THE UTILITY MODEL
To the problem that prior art exists, the utility model provides an universal bearing's fatigue test device.
The utility model discloses a realize like this, an universal bearing's fatigue test device is provided with:
an iron floor;
an L plate is fixed on one side of the iron floor through anchor bolts, a test piece fixing clamp is fixed in the middle of the L plate through bolts, one end of a test piece is fixed by the test piece fixing clamp through a mounting pin A, the other side of the test piece is fixed on a test piece connecting clamp through a mounting pin B, the test piece connecting clamp is connected with a load actuating cylinder through a connecting rod of the load actuating cylinder, the bottom of the load actuating cylinder is connected with a pulley mounting plate through bolts, two sides of the pulley mounting plate are connected with a pulley A and a pulley B through bolts, the pulley A and the pulley B are respectively embedded into two guide rails of a guide device in parallel, the guide device is fixed on the iron floor through the anchor bolts, an actuating cylinder fixing clamp is fixedly installed on the middle lower portion of the load actuating cylinder, a displacement rod is installed on the upper portion of the actuating cylinder fixing clamp and is connected with the displacement actuating cylinder through threads, the displacement actuator cylinder is connected with a displacement actuator cylinder back plate through a bolt, the displacement actuator cylinder back plate is connected with a portal frame through a bolt, and the portal frame is connected with an iron floor through foundation bolts.
Furthermore, the load actuator cylinder and the test piece connecting clamp are connected with a threaded hole of the load actuator cylinder through threads on one side of the test piece connecting clamp, and a standby ring is added to further prevent looseness.
Furthermore, the displacement actuator cylinder and the displacement rod are connected with a threaded hole of the displacement actuator cylinder through threads on one side of the displacement rod, and a standby ring is added to further prevent looseness.
Furthermore, the inside installation rolling bearing of pulley passes through rolling bearing with the connecting pin of pulley, can effectually reduce the frictional force on the pulley, makes the pulley can more smooth and easy rotate on guider.
Further, the radius of the guide rail circle on the guide device is determined according to the distance from the connection circle center of the test piece and the test piece fixing clamp to the contact position of the pulley and the guide device.
Furthermore, the load actuator cylinder and the displacement actuator cylinder are coordinated and controlled through a multi-channel coordination loading system, and static load and angle rotation working conditions are applied to the test piece at the same time.
Furthermore, the guide device uses the load actuator cylinder as a part of angular rotation, and the load actuator cylinder is connected with the guide rail on the guide device through the pulley mounting plate and the pulley, so that the test piece rotates around the universal bearing.
Combine foretell all technical scheme, the utility model discloses the advantage that possesses and positive effect are: the utility model, with the assistance of the guide device, uses the load actuator cylinder as a part of the angular rotation, and connects the load actuator cylinder with the guide rail on the guide device through the pulley mounting plate and the pulley, so as to realize the rotation of the test piece around the universal bearing; the utility model determines the radius of the guide rail on the guiding device by measuring the distance from the connecting circle center of the test piece and the test piece fixing clamp to the contact part of the pulley and the guiding device, and realizes the uniform and accurate angle rotation of the test piece around the guide rail; the utility model corresponds to the distance of the load actuator cylinder around the arc on the guide rail of the guiding device according to the relative displacement of the displacement actuator cylinder on the guide rail of the guiding device and the extension of the displacement actuator cylinder, thereby corresponding to the rotation angle of the test piece; the utility model discloses rational in infrastructure, the modern design.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a fatigue test device for a universal bearing according to an embodiment of the present invention.
Fig. 2 is a schematic view of a guiding device according to an embodiment of the present invention.
Fig. 3 is a schematic position diagram of a guide pulley device according to an embodiment of the present invention.
In the figure: 1. an iron floor; 2. an L plate; 3. a test piece fixing clamp; 4. mounting a pin A; 5. a test piece; 6. a mounting pin B; 7. the test piece is connected with the clamp; 8. a load ram; 9. a pulley mounting plate; 10. a pulley A; 11. a pulley B; 12. a guide device; 13. a displacement rod; 14. an actuator cylinder fixing clamp; 15. a displacement actuator cylinder; 16. a displacement actuator backplate; 17. a portal frame.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
To the problem that prior art exists, the utility model provides an universal bearing's fatigue test device, it is right to combine the figure below the utility model discloses do detailed description.
As shown in fig. 1 and fig. 2, the embodiment of the present invention provides a fatigue test device for a universal bearing, including: an iron floor 1;
an L plate 2 is fixed on one side of the iron floor 1 through anchor bolts, a test piece fixing clamp 3 is fixed in the middle of the L plate 2 through bolts, one end of a test piece 5 is fixed through a mounting pin A4 by the test piece fixing clamp 3, the other side of the test piece 5 is fixed on a test piece connecting clamp 7 through a mounting pin B6, the test piece connecting clamp 7 is connected with a load actuator cylinder 8 through a connecting rod of the load actuator cylinder 8, the bottom of the load actuator cylinder 8 is connected with a pulley mounting plate 9 through bolts, two sides of the pulley mounting plate 9 are connected with a pulley A10 and a pulley B11 through bolts, the pulley A10 and the pulley B11 are respectively embedded into two guide rails of a guide device in parallel, the guide device 12 is fixed on the iron floor 1 through anchor bolts, an actuator cylinder fixing clamp 14 is fixed on the middle lower portion of the load actuator cylinder 8, a displacement rod 13 is installed on the upper portion of the actuator cylinder fixing clamp 14, the displacement rod 13 is connected with a displacement actuator cylinder 15 through threads, the displacement actuator cylinder 15 is connected with a displacement actuator cylinder back plate 16 through a bolt, the displacement actuator cylinder back plate 16 is connected with a portal frame 17 through a bolt, and the portal frame 17 is connected with the iron floor 1 through foundation bolts.
Preferably, the load cylinder 8 and the test piece connecting clamp 7 are connected with a threaded hole of the load cylinder 8 through a thread on one side of the test piece connecting clamp 7, and a standby ring is added to further prevent looseness.
Preferably, the displacement cylinder 15 and the displacement rod 13 are connected by a screw thread on one side of the displacement rod 13 and a screw hole of the displacement cylinder 15, and a backup ring is added to further prevent loosening.
Preferably, a rotating bearing is installed inside the pulley a10 and the pulley B11, and a connecting pin of the pulley a10 and the pulley B11 passes through the rotating bearing, so that the friction force on the pulley a10 and the pulley B11 can be effectively reduced, and the pulley a10 and the pulley B11 can rotate on the guide device 12 more smoothly.
Preferably, the radius of the guide rail circle on the guide device 12 is determined according to the distance from the connection circle center of the test piece 5 and the test piece fixing clamp 3 to the contact position of the pulley A10 and the pulley B11 with the guide device 12, so that the test piece can rotate around the guide rail uniformly and accurately to realize angle rotation.
Preferably, the load actuator cylinder 8 and the displacement actuator cylinder 15 are coordinately controlled through a multi-channel coordination loading system, and static load and angular rotation working conditions are applied to the test piece 5 at the same time.
Preferably, the guide 12 uses the load ram 8 as part of the angular rotation, and the test piece 5 is rotated about the universal bearing by connecting the load ram 8 to the guide rail on the guide 12 via the pulley mounting plate 9, the pulley a10 and the pulley B11.
As the utility model discloses a technical optimization scheme, displacement actuator cylinder 15 is connected with load actuator cylinder 8 through displacement pole 13, through stretching out and the withdrawal of 15 piston structure of displacement actuator cylinder, realizes the angle swing of load actuator cylinder 8 around guider 12 guide rails, and the even angle swing that the indirect control testpieces correspond is come to the withdrawal displacement volume through the displacement volume of stretching out and the withdrawal displacement volume of control displacement actuator cylinder 15 piston structure.
The utility model discloses when using, iron floor 1 passes through rag bolt and fixes L board 2, test piece mounting fixture 3 passes through the bolt fastening on L board 2, test piece 5 one side is connected with test piece mounting fixture 3 through mounting pin A4, test piece 5 opposite side is connected test piece connecting fixture 7 with it through mounting pin B6, test piece connecting fixture 7 is connected with load actuator 8 through the screw thread, load actuator 8 applys the static load to test piece 5, test piece 5 opposite side is connected with pulley mounting panel 9 through the bolt, pulley mounting panel 9 both sides have pulley A10 and pulley B11 through bolted connection, pulley A10 and pulley B11 are parallel embedding respectively in two guide rails of guider, guider 12 passes through rag bolt and is connected with iron floor 1, from this load actuator 8 and test piece 5 both ends all have the installation to be fixed, can apply the static load; an actuator cylinder fixing clamp 14 is installed at the bottom of a load actuator cylinder 8, the load actuator cylinder 8 is connected with the actuator cylinder fixing clamp 14, a displacement rod 13 is connected with the actuator cylinder fixing clamp 14 through threads, the other side of the displacement rod 13 is connected with a displacement actuator cylinder 15 through threads, the displacement actuator cylinder 15 drives the load actuator cylinder 8 to rotate around the center of a universal bearing at the side of the test piece fixing clamp 3 on a guide rail of a guide device 12 through stretching, the requirement of angular rotation is met, the bottom of the displacement actuator cylinder 15 is connected with a displacement actuator cylinder back plate 16 through bolts, and the displacement actuator cylinder back plate 16 is connected with a portal frame 17 through bolts, so that the displacement actuator cylinder 15 is installed and fixed.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be covered within the protection scope of the present invention by those skilled in the art within the technical scope of the present invention.
Claims (7)
1. The utility model provides a universal bearing's fatigue test device which characterized in that, universal bearing's fatigue test device is provided with:
an iron floor;
an L plate is fixed on one side of the iron floor through anchor bolts, a test piece fixing clamp is fixed in the middle of the L plate through bolts, one end of a test piece is fixed by the test piece fixing clamp through a mounting pin A, the other side of the test piece is fixed on a test piece connecting clamp through a mounting pin B, the test piece connecting clamp is connected with a load actuating cylinder through a connecting rod of the load actuating cylinder, the bottom of the load actuating cylinder is connected with a pulley mounting plate through bolts, two sides of the pulley mounting plate are connected with a pulley A and a pulley B through bolts, the pulley A and the pulley B are respectively embedded into two guide rails of a guide device in parallel, the guide device is fixed on the iron floor through the anchor bolts, an actuating cylinder fixing clamp is fixedly installed on the middle lower portion of the load actuating cylinder, a displacement rod is installed on the upper portion of the actuating cylinder fixing clamp and is connected with the displacement actuating cylinder through threads, the displacement actuator cylinder is connected with a displacement actuator cylinder back plate through a bolt, the displacement actuator cylinder back plate is connected with a portal frame through a bolt, and the portal frame is connected with an iron floor through foundation bolts.
2. The fatigue testing device for the universal bearing according to claim 1, wherein the load cylinder and the test piece connecting jig are connected with the threaded hole of the load cylinder through a screw on one side of the test piece connecting jig, and a backup ring is added to further prevent the loosening.
3. The fatigue testing device for the universal bearing according to claim 1, wherein the displacement actuator and the displacement rod are connected with a threaded hole of the displacement actuator through threads on one side of the displacement rod, and a backup ring is added to further prevent loosening.
4. The fatigue testing device for the universal bearing according to claim 1, wherein the rotational bearing is installed inside the pulley, and the connecting pin of the pulley passes through the rotational bearing, so that the friction force on the pulley can be effectively reduced, and the pulley can rotate on the guide device more smoothly.
5. The fatigue testing device for the universal bearing according to claim 1, wherein the radius of the guide rail circle on the guide device is determined according to the distance from the center of the circle connecting the test piece and the test piece fixing clamp to the contact position of the pulley and the guide device.
6. The fatigue testing device for the universal bearing according to claim 1, wherein the load actuator cylinder and the displacement actuator cylinder are coordinately controlled through a multi-channel coordination loading system, and static load and angular rotation working conditions are simultaneously applied to the test piece.
7. A fatigue testing device for a universal bearing according to claim 1, wherein said guide means connects the load ram as part of the angular rotation, via a pulley mounting plate and a pulley, to a guide rail on the guide means to effect rotation of the test piece about the universal bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121475660.7U CN215296661U (en) | 2021-06-30 | 2021-06-30 | Fatigue test device for universal bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121475660.7U CN215296661U (en) | 2021-06-30 | 2021-06-30 | Fatigue test device for universal bearing |
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| Publication Number | Publication Date |
|---|---|
| CN215296661U true CN215296661U (en) | 2021-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121475660.7U Active CN215296661U (en) | 2021-06-30 | 2021-06-30 | Fatigue test device for universal bearing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114964775A (en) * | 2022-07-27 | 2022-08-30 | 中国航发沈阳发动机研究所 | Fatigue test device for pivot bearing of aero-engine case |
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2021
- 2021-06-30 CN CN202121475660.7U patent/CN215296661U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114964775A (en) * | 2022-07-27 | 2022-08-30 | 中国航发沈阳发动机研究所 | Fatigue test device for pivot bearing of aero-engine case |
| CN114964775B (en) * | 2022-07-27 | 2022-09-30 | 中国航发沈阳发动机研究所 | Fatigue test device for pivot bearing of aero-engine case |
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