CN218823187U - Research device for bearing rotation precision to service life influence - Google Patents
Research device for bearing rotation precision to service life influence Download PDFInfo
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- CN218823187U CN218823187U CN202221089818.1U CN202221089818U CN218823187U CN 218823187 U CN218823187 U CN 218823187U CN 202221089818 U CN202221089818 U CN 202221089818U CN 218823187 U CN218823187 U CN 218823187U
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Abstract
The application provides a research device of bearing rotation accuracy to life-span influence. When the application is used, the rotating shaft has rotating power and rotates under the support of the fixed bearing. The position of the test bearing is finely adjusted through the bearing displacement adjusting mechanism, so that the relative rotation precision between the rotating shaft and the test bearing is reduced. Under the long-time rotation test, the test bearing which rotates with low precision can be obtained, then the test bearing can be disassembled and structurally analyzed, and the influence of the rotation with low precision on the service life and the reliability of the bearing can be researched. Specifically, the eccentric distance of the test bearing relative to the rotating shaft can be adjusted through the bearing displacement adjusting mechanism, and the inclination angle of the axis of the test bearing and the axis of the rotating shaft can also be adjusted. Therefore, the influence of the eccentric distance on the service life and the reliability of the bearing can be tested, the influence of the inclination angle on the service life and the reliability of the bearing can be tested, and the influence of the low-precision rotation time on the service life and the reliability of the bearing can be tested.
Description
Technical Field
The application relates to the technical field of bearing testing, in particular to a device for researching influence of bearing rotation precision on service life.
Background
The service life of a bearing is mainly affected by the rotational accuracy, such as the eccentric distance between the axis of the bearing and the axis of the rotating shaft, and further such as the inclination angle of the bearing relative to the axis of the rotating shaft. When the eccentric distance is not zero, the bearing is stressed unevenly, and the service life of the bearing is obviously influenced. When the inclination angle is not 90 degrees, the bearing is stressed unevenly, and the service life of the bearing is obviously influenced. Therefore, in the research process of bearing service life influence, how to conveniently adjust the eccentric distance and the inclination angle of the bearing is a technical problem to be solved in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the application provides a research device of bearing rotation accuracy to life-span influence, can conveniently adjust eccentric distance and the inclination of bearing.
In a first aspect, the present application provides a bearing rotation accuracy is to research device of life-span influence, includes: the bearing supporting seat is provided with a first cavity and a second cavity; the fixed bearing is arranged in the second cavity, and the diameter of the fixed bearing is matched with the inner diameter of the second cavity; a test bearing disposed in the first cavity, the test bearing having a diameter less than an inner diameter of the first cavity; the rotating shaft extends into the bearing support seat from one side, sequentially penetrates through the shaft hole of the test bearing and the shaft hole of the fixed bearing and extends out of the other side of the bearing support seat; and a bearing displacement adjustment mechanism connected to the bearing support base, the bearing displacement adjustment mechanism having an adjustment component that extends into the first cavity, the bearing displacement adjustment mechanism being configured to: controlling the adjustment assembly to move to adjust the position of the test bearing in the first cavity.
When the rotary shaft is used, the rotary shaft has rotary power and rotates under the support of the fixed bearing. The position of the test bearing is finely adjusted through the bearing displacement adjusting mechanism, so that the relative rotation precision between the rotating shaft and the test bearing is reduced. Under the long-time rotation test, the test bearing which rotates with low precision can be obtained, then the test bearing can be disassembled and structurally analyzed, and the influence of the rotation with low precision on the service life and the reliability of the bearing can be researched. In this aspect, the eccentric distance of the test bearing relative to the rotating shaft can be adjusted by the bearing displacement adjusting mechanism, and the inclination angle between the axis of the test bearing and the axis of the rotating shaft can also be adjusted. Therefore, the influence of the eccentric distance on the service life and the reliability of the bearing can be tested, the influence of the inclination angle on the service life and the reliability of the bearing can be tested, and the influence of the low-precision rotation time on the service life and the reliability of the bearing can be tested.
With reference to the first aspect, in one possible implementation manner, the adjusting component includes: the first abutting joint is positioned in the first cavity and abuts against the outer peripheral surface of the test bearing; wherein, bearing displacement adjustment mechanism includes: one end of the first bolt is connected with the first butt joint head, the bearing support seat is provided with a first screw hole, the first bolt is screwed in the first screw hole, and the other end, far away from the first butt joint head, of the first bolt extends out of the bearing support seat.
With reference to the first aspect, in a possible implementation manner, the adjusting assembly further includes: the second abutting joint is positioned in the first cavity and abuts against the outer peripheral surface of the test bearing; wherein, bearing displacement adjustment mechanism still includes: one end of the second bolt is connected with the second abutting joint, the bearing supporting seat is provided with a second screw hole, the second bolt is screwed in the second screw hole, and the other end, far away from the second abutting joint, of the second bolt extends out of the bearing supporting seat; wherein the first screw hole and the second screw hole are in different positions.
With reference to the first aspect, in one possible implementation manner, the adjusting component includes: the first wedge block partially or completely extends into the first cavity, a wedge surface of the first wedge block is abutted against or away from a boundary line between the side surface and the outer peripheral surface of the test bearing, and the surface of the first wedge block opposite to the wedge surface is abutted against the inner wall of the bearing supporting seat; wherein, bearing displacement adjustment mechanism includes: and one end of the third bolt is rotationally connected with the first wedge block, the bearing support seat is provided with a third screw hole, the third bolt is screwed in the third screw hole, and the other end of the third bolt, far away from the first wedge block, extends out of the bearing support seat.
With reference to the first aspect, in one possible implementation manner, the adjusting component includes: the second wedge block partially or completely extends into the first cavity, the wedge surface of the second wedge block is mutually abutted or separated from the boundary line of the side surface and the outer peripheral surface of the test bearing, and the surface of the second wedge block opposite to the wedge surface is abutted with the inner wall of the bearing supporting seat; wherein, bearing displacement adjustment mechanism still includes: one end of the fourth bolt is rotatably connected with the second wedge-shaped block, the bearing support seat is provided with a fourth screw hole, the fourth bolt is screwed in the fourth screw hole, and the other end, far away from the second wedge-shaped block, of the fourth bolt extends out of the bearing support seat; the first wedge block and the second wedge block are respectively positioned at two opposite sides of the test bearing.
With reference to the first aspect, in a possible implementation manner, the method further includes: a first fixing lever; the rotating shaft is provided with a first radial through hole, the first radial through hole is located on the outer side of the bearing supporting seat, and the first fixing rod penetrates through the first radial through hole.
With reference to the first aspect, in a possible implementation manner, the rotating shaft is further provided with a first locking hole with threads, and the first locking hole is communicated to the first radial through hole; the rotating shaft further comprises a first machine meter screw, and the first machine meter screw is screwed in the first locking hole.
With reference to the first aspect, in a possible implementation manner, the method further includes: a second fixing bar; the rotating shaft is provided with a second radial through hole, the second radial through hole is positioned outside the bearing support seat, and the second fixing rod penetrates through the second radial through hole; the second radial through hole and the first radial through hole are respectively located on two opposite sides of the bearing support seat, and the first fixing rod and the second fixing rod are abutted to the side face of the bearing support seat.
With reference to the first aspect, in a possible implementation manner, the rotating shaft is further provided with a second locking hole with a thread, and the second locking hole is communicated to the second radial through hole; the rotating shaft further comprises a second machine meter screw, and the second machine meter screw is screwed in the second locking hole.
With reference to the first aspect, in a possible implementation manner, the method further includes: the first auxiliary bearing is arranged at the position where the rotating shaft extends into the bearing support seat; and the second auxiliary bearing is arranged at the position where the rotating shaft extends out of the bearing support seat.
Drawings
Fig. 1 is a schematic structural diagram of a device for researching influence of bearing rotation accuracy on service life according to an embodiment of the present application.
Fig. 2 is a schematic partial structural diagram of a device for researching influence of bearing rotation accuracy on service life according to an embodiment of the present application.
Fig. 3 is a schematic partial structural diagram of a device for studying the effect of bearing rotation accuracy on life according to another embodiment of the present application.
Fig. 4 is a schematic use diagram of a device for researching influence of bearing rotation accuracy on service life according to an embodiment of the present application.
Fig. 5 is a schematic use diagram of a device for researching influence of bearing rotation accuracy on service life according to another embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a schematic structural diagram of a device for researching influence of bearing rotation accuracy on service life according to an embodiment of the present application. In one embodiment, as shown in fig. 1, the device includes a bearing support base 1, a fixed bearing 2, a test bearing 3, a rotating shaft 4, and a bearing displacement adjusting mechanism 5.
The bearing support seat 1 has a first cavity and a second cavity. A fixed bearing 2 is arranged in the second cavity, the diameter of the fixed bearing 2 and the inner diameter of the second cavity being matched to each other. A test bearing 3 is arranged in the first cavity, and the diameter of the test bearing 3 is smaller than the inner diameter of the first cavity; the axis of rotation 4 is followed one side of bearing support seat 1 stretches into, axis of rotation 4 passes in proper order test bearing 3's shaft hole and fixed bearing 2's shaft hole, and follow the opposite side of bearing support seat 1 stretches out.
Bearing displacement adjustment mechanism 5 with bearing support seat 1 is connected, bearing displacement adjustment mechanism 5 has the adjusting part, the adjusting part stretches into in the first cavity, bearing displacement adjustment mechanism 5 structure is: controlling the movement of the adjustment assembly to adjust the position of the test bearing 3 in the first cavity.
In use, the rotating shaft 4 is provided with a rotating power and rotates under the support of the fixed bearing 2. The position of the test bearing 3 is finely adjusted by the bearing displacement adjusting mechanism 5, so that the relative rotation precision between the rotating shaft 4 and the test bearing 3 is reduced. Under the long-time rotation test, the test bearing 3 which rotates with low precision can be obtained, and then the test bearing 3 can be disassembled and subjected to structural analysis to research the influence of the rotation with low precision on the service life and the reliability of the bearing.
In this embodiment, the eccentric distance of the test bearing 3 with respect to the rotating shaft 4 can be adjusted by the bearing displacement adjusting mechanism 5, and the inclination angle between the axis of the test bearing 3 and the axis of the rotating shaft 4 can also be adjusted. Therefore, the influence of the eccentric distance on the service life and the reliability of the bearing can be tested, the influence of the inclination angle on the service life and the reliability of the bearing can be tested, and the influence of the low-precision rotation time on the service life and the reliability of the bearing can be tested.
In an embodiment, as shown in fig. 1, the adjusting assembly 5 includes a first abutting head 51, the first abutting head 51 is located in the first cavity, and the first abutting head 51 abuts against the outer peripheral surface of the test bearing 3. The bearing displacement adjusting mechanism 5 includes a first bolt 52, one end of the first bolt 52 is connected to the first abutting head 51, the bearing support seat 1 has a first screw hole, the first bolt 52 is screwed in the first screw hole, and the other end of the first bolt 52, which is far away from the first abutting head 51, extends out of the bearing support seat 1.
In this embodiment, by rotating the first bolt 52, the depth of the first bolt 52 in the first screw hole can be adjusted, and then the position of the first abutting head 51 is adjusted, and the test bearing 3 can be pushed by the first abutting head 51, that is, the eccentric distance of the test bearing 3 relative to the rotating shaft 4 is adjusted. The rotating shaft 4 applies a radially outward stress to the eccentric test bearing 3 from the shaft hole of the test bearing 3, and the first abutting head 51 abuts against the outer peripheral surface of the eccentric test bearing 3 to apply a radially inward stress. Specifically, the surface of the first abutting head 51 facing the test bearing 3 is a matched arc surface, so that the first abutting head can be better abutted against the test bearing 3.
In an embodiment, as shown in fig. 1, the adjusting assembly further includes a second abutting head 53, the second abutting head 53 is located in the first cavity, and the second abutting head 53 abuts against the outer peripheral surface of the test bearing 3. The bearing displacement adjusting mechanism 5 further includes a second bolt 54, one end of the second bolt 54 is connected to the second abutting joint head 53, the bearing support base 1 has a second screw hole, the second bolt 54 is screwed into the second screw hole, and the other end of the second bolt 54, which is far away from the second abutting joint head 53, extends out of the bearing support base 1. Wherein the first screw hole and the second screw hole are in different positions.
In use, the second bolt 54 is screwed to adjust the position of the second abutting head 53, and the second abutting head 53 abuts against the test bearing 3 from the other side. After the second abutting head 53 and the first abutting head 51 are mutually matched to finely adjust the position of the test bearing 3 together, the second abutting head 53 and the first abutting head 51 abut against the test bearing 3 from two directions, so that the test bearing 3 after the position is changed can be prevented from displacing, and the test process is more stable.
In one embodiment, as shown in fig. 1, the adjusting assembly includes a first wedge block 55, the first wedge block 55 partially or completely extends into the first cavity, a wedge surface of the first wedge block 55 abuts against or is away from an intersection line of a side surface and an outer peripheral surface of the test bearing 3, and a surface of the first wedge block opposite to the wedge surface abuts against an inner wall of the bearing support base 1. The bearing displacement adjusting mechanism includes a third bolt 56, one end of the third bolt 56 is rotatably connected to the first wedge-shaped block 55, the bearing support seat 1 has a third screw hole, the third bolt 56 is screwed in the third screw hole, and the other end of the third bolt 56, which is far away from the first wedge-shaped block 55, extends out of the bearing support seat 1.
When the test device is used, the depth of the first wedge-shaped block 55 in the first cavity can be adjusted by screwing the third bolt 56, different positions of the wedge-shaped surface of the first wedge-shaped block 55 are abutted to the test bearing 3, so that different inclination angles of the test bearing 3 can be generated, and the inclination angle adjustment of the test bearing 3 is realized.
In one embodiment, as shown in fig. 1, the adjusting assembly includes a second wedge block 57, the second wedge block 57 partially or completely extends into the first cavity, a wedge surface of the second wedge block 57 is abutted against or away from an intersection line of a side surface and an outer peripheral surface of the test bearing 3, and a surface of the second wedge block 57 opposite to the wedge surface is abutted against an inner wall of the bearing support seat 1. The bearing displacement adjusting mechanism further comprises a fourth bolt 58, one end of the fourth bolt 58 is rotatably connected with the second wedge block 57, the bearing support seat 1 is provided with a fourth screw hole, the fourth bolt 58 is screwed in the fourth screw hole, and the other end, far away from the second wedge block 57, of the fourth bolt 58 extends out of the bearing support seat 1. Wherein the first wedge-shaped block 55 and the second wedge-shaped block 57 are respectively located at two opposite sides of the test bearing 3.
In use, the depth of the second wedge 57 in the first cavity can be adjusted by screwing the fourth bolt 58. After the second wedge block 57 and the first wedge block 55 are mutually matched to finely adjust the inclination angle of the test bearing 3 together, the second wedge block 57 and the first wedge block 55 prop against the test bearing 3 from two directions, so that the test bearing 3 with the changed inclination angle can be prevented from rotating or shaking, and the test process is more stable.
In an embodiment, as shown in fig. 1, the device for studying the influence of bearing rotation accuracy on the service life further comprises a first fixing rod 601. The rotating shaft 4 is provided with a first radial through hole, the first radial through hole is located on the outer side of the bearing support seat 1, and the first fixing rod 601 is arranged in the first radial through hole in a penetrating mode.
In the present embodiment, when in use, the first fixing rod 601 can prevent the rotating shaft 4 from falling off the bearing support 1 from the bearing support 1 toward the direction of the first fixing rod 601.
Fig. 2 is a schematic partial structural diagram of a device for researching an influence of bearing rotation accuracy on a service life according to an embodiment of the present application. In one embodiment, as shown in fig. 2, the rotating shaft 4 is further provided with a first locking hole having a thread, and the first locking hole is communicated to the first radial through hole. The rotating shaft 4 further comprises a first machine meter screw 401, and the first machine meter screw 401 is screwed in the first locking hole.
When the embodiment is used, the first machine meter screw 401 is screwed in and abutted against the first fixing rod 601, the first fixing rod 601 can be fixed, and the first fixing rod 601 is prevented from falling off from the first radial through hole.
In an embodiment, as shown in fig. 1, the device for studying the influence of bearing rotation precision on the service life further comprises a second fixing rod 801. The rotating shaft 4 is provided with a second radial through hole, the second radial through hole is located on the outer side of the bearing support seat 1, and the second fixing rod 801 is arranged in the second radial through hole in a penetrating mode. The second radial through hole and the first radial through hole are respectively located on two opposite sides of the bearing support seat 1, and the first fixing rod 601 and the second fixing rod 801 are abutted to the side face of the bearing support seat 1.
In use, the rotating shaft 4 can be stably mounted in the bearing support 1 by the cooperation of the first fixing rod 601 and the second fixing rod 801, so as to further prevent the rotating shaft 4 from being disengaged from the bearing support 1.
Fig. 3 is a schematic partial structural diagram of a device for studying the effect of bearing rotation accuracy on life according to another embodiment of the present application. In one embodiment, as shown in fig. 3, the rotating shaft 4 is further provided with a second locking hole having a thread, and the second locking hole is communicated to the second radial through hole. The rotating shaft 4 further includes a second machine-meter screw 402, and the second machine-meter screw 402 is screwed into the second locking hole.
When the embodiment is used, the second machine screw 402 is screwed in and abutted against the second fixing rod 801, so that the second fixing rod 801 can be fixed, and the second fixing rod 801 is prevented from falling off from the first radial through hole.
In an embodiment, the device for researching the influence of the bearing rotation precision on the service life further comprises a first auxiliary bearing 6 and a second auxiliary bearing 7, wherein the first auxiliary bearing 6 is arranged at the position where the rotating shaft 4 extends into the bearing support base 1. A second auxiliary bearing 7 is provided at a position where the rotating shaft 4 protrudes out of the bearing support base 1.
This embodiment is when using, can further stabilize the rotation orbit of axis of rotation 4 through first auxiliary bearing 6 and second auxiliary bearing 7 for this application is after adjusting the position of test bearing 3, and stable stress can be applyed to test bearing 3 to axis of rotation 4, thereby can be more accurate to the test result of test bearing 3.
Fig. 4 is a schematic use diagram of a device for researching influence of bearing rotation accuracy on service life according to an embodiment of the present application. Fig. 5 is a schematic use diagram of a device for studying the effect of bearing rotation accuracy on life according to another embodiment of the present application. In practical application of the present application, when the first abutting head 51 and the second abutting head 53 are adjusted to generate an eccentric distance for the test bearing 3, a schematic structural diagram at this time is shown in fig. 4. When the test bearing is tilted to the right by adjusting the depths of the first wedge-shaped block 55 and the second wedge-shaped block 57, the structural diagram is shown in fig. 5.
The foregoing describes the general principles of the present application in conjunction with specific embodiments, however, it is noted that the advantages, effects, etc. mentioned in the present application are merely examples and are not limiting, and they should not be considered essential to the various embodiments of the present application. Furthermore, the foregoing disclosure of specific details is for the purpose of illustration and description and is not intended to be limiting, since the foregoing disclosure is not intended to be exhaustive or to limit the disclosure to the precise details disclosed.
The block diagrams of devices, apparatuses, systems referred to in this application are only given as illustrative examples and are not intended to require or imply that the connections, arrangements, configurations, etc. must be made in the manner shown in the block diagrams. These devices, apparatuses, devices, systems may be connected, arranged, configured in any manner, as will be appreciated by those skilled in the art. Words such as "including," "comprising," "having," and the like are open-ended words that mean "including, but not limited to," and are used interchangeably therewith. The words "or" and "as used herein mean, and are used interchangeably with, the word" and/or, "unless the context clearly dictates otherwise. The word "such as" is used herein to mean, and is used interchangeably with, the phrase "such as but not limited to".
It should also be noted that in the apparatus and devices of the present application, the components may be disassembled and/or reassembled. These decompositions and/or recombinations are to be considered as equivalents of the present application.
The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modifications, equivalents and the like that are within the spirit and principle of the present application should be included in the scope of the present application.
Claims (10)
1. The utility model provides a research device of bearing rotation precision to life-span influence which characterized in that includes:
the bearing supporting seat is provided with a first cavity and a second cavity;
the fixed bearing is arranged in the second cavity, and the diameter of the fixed bearing is matched with the inner diameter of the second cavity;
a test bearing disposed in the first cavity, the test bearing having a diameter less than an inner diameter of the first cavity;
the rotating shaft extends into the bearing support seat from one side, sequentially penetrates through the shaft hole of the test bearing and the shaft hole of the fixed bearing and extends out of the other side of the bearing support seat; and
bearing displacement adjustment mechanism, with bearing supporting seat is connected, bearing displacement adjustment mechanism has the adjusting part, the adjusting part stretches into in the first cavity, bearing displacement adjustment mechanism constructs to: controlling the adjustment assembly to move to adjust the position of the test bearing in the first cavity.
2. The bearing rotation accuracy lifetime impact study apparatus of claim 1, wherein said adjustment assembly comprises:
the first abutting joint is positioned in the first cavity and abuts against the outer peripheral surface of the test bearing;
wherein, bearing displacement adjustment mechanism includes:
one end of the first bolt is connected with the first butt joint head, the bearing support seat is provided with a first screw hole, the first bolt is screwed in the first screw hole, and the other end, far away from the first butt joint head, of the first bolt extends out of the bearing support seat.
3. The device for researching influence of bearing rotation precision on service life as claimed in claim 2, wherein the adjusting assembly further comprises:
the second abutting joint is positioned in the first cavity and abuts against the outer peripheral surface of the test bearing;
wherein, bearing displacement adjustment mechanism still includes:
one end of the second bolt is connected with the second abutting joint, the bearing supporting seat is provided with a second screw hole, the second bolt is screwed in the second screw hole, and the other end, far away from the second abutting joint, of the second bolt extends out of the bearing supporting seat;
wherein the first screw hole and the second screw hole are in different positions.
4. The bearing rotation accuracy lifetime impact study apparatus of claim 1, wherein said adjustment assembly comprises:
the first wedge block partially or completely extends into the first cavity, a wedge surface of the first wedge block is abutted against or away from a boundary line between the side surface and the outer peripheral surface of the test bearing, and the surface of the first wedge block opposite to the wedge surface is abutted against the inner wall of the bearing supporting seat;
wherein, bearing displacement adjustment mechanism includes:
and one end of the third bolt is rotationally connected with the first wedge block, the bearing support seat is provided with a third screw hole, the third bolt is screwed in the third screw hole, and the other end of the third bolt, far away from the first wedge block, extends out of the bearing support seat.
5. The bearing rotation accuracy on life investigation apparatus of claim 4, wherein the adjusting assembly comprises:
the second wedge block partially or completely extends into the first cavity, the wedge surface of the second wedge block is mutually abutted or separated from the boundary line of the side surface and the outer peripheral surface of the test bearing, and the surface of the second wedge block opposite to the wedge surface is abutted with the inner wall of the bearing supporting seat;
wherein, bearing displacement adjustment mechanism still includes:
one end of the fourth bolt is rotatably connected with the second wedge-shaped block, the bearing support seat is provided with a fourth screw hole, the fourth bolt is screwed in the fourth screw hole, and the other end, far away from the second wedge-shaped block, of the fourth bolt extends out of the bearing support seat;
the first wedge block and the second wedge block are respectively positioned at two opposite sides of the test bearing.
6. The device for researching influence of bearing rotation precision on service life according to claim 1, further comprising:
a first fixing lever;
the rotating shaft is provided with a first radial through hole, the first radial through hole is located on the outer side of the bearing supporting seat, and the first fixing rod penetrates through the first radial through hole.
7. The device for researching influence of bearing rotation precision on service life according to claim 6, wherein the rotating shaft is further provided with a first locking hole with threads, and the first locking hole is communicated to the first radial through hole;
the rotating shaft further comprises a first machine meter screw, and the first machine meter screw is screwed in the first locking hole.
8. The device for researching influence of bearing rotation precision on service life according to claim 6, further comprising:
a second fixing bar;
the rotating shaft is provided with a second radial through hole, the second radial through hole is positioned outside the bearing support seat, and the second fixing rod penetrates through the second radial through hole;
the second radial through hole and the first radial through hole are respectively located on two opposite sides of the bearing support seat, and the first fixing rod and the second fixing rod are abutted to the side face of the bearing support seat.
9. The device for researching influence of bearing rotation precision on service life as claimed in claim 8, wherein the rotating shaft is further provided with a second locking hole with a thread, and the second locking hole is communicated to the second radial through hole;
the rotating shaft further comprises a second machine meter screw, and the second machine meter screw is screwed in the second locking hole.
10. The device for researching influence of bearing rotation precision on service life according to claim 1, further comprising:
the first auxiliary bearing is arranged at the position where the rotating shaft extends into the bearing support seat; and
and the second auxiliary bearing is arranged at the position where the rotating shaft extends out of the bearing support seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221089818.1U CN218823187U (en) | 2023-03-06 | 2023-03-06 | Research device for bearing rotation precision to service life influence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221089818.1U CN218823187U (en) | 2023-03-06 | 2023-03-06 | Research device for bearing rotation precision to service life influence |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218823187U true CN218823187U (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221089818.1U Active CN218823187U (en) | 2023-03-06 | 2023-03-06 | Research device for bearing rotation precision to service life influence |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218823187U (en) |
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2023
- 2023-03-06 CN CN202221089818.1U patent/CN218823187U/en active Active
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