CN213397629U - Impact load device in bearing life test - Google Patents
Impact load device in bearing life test Download PDFInfo
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- CN213397629U CN213397629U CN202022447230.6U CN202022447230U CN213397629U CN 213397629 U CN213397629 U CN 213397629U CN 202022447230 U CN202022447230 U CN 202022447230U CN 213397629 U CN213397629 U CN 213397629U
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- impact load
- fixing sleeve
- pressure sensor
- spring
- bearing
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Abstract
The utility model discloses an impact load device in bearing life test, which comprises a frame and a servo motor, wherein the frame is provided with an impact load fixing sleeve and a follow-rotation bearing installation shaft for follow-rotation bearing installation, the impact load fixing sleeve is internally and slidably connected with a spring pressing sleeve, and one end of the spring pressing sleeve is provided with a space for the follow-rotation bearing and the follow-rotation bearing installation shaft; a pressure sensor fixing sleeve is arranged in the impact load fixing sleeve, a pressure sensor is arranged on one end face of the pressure sensor fixing sleeve, a spring guide rod is arranged on the other end face of the pressure sensor fixing sleeve, one end of the pressure sensor is connected with a loading head, and the loading head is connected with a stress plate; a spring is connected between the spring pressing sleeve and the pressure sensor fixing sleeve; the output shaft of the servo motor is provided with a cam, and the cam and the outer edge of the follow-up bearing are in clearance collision to apply clearance impact load. The cam is driven to rotate, so that the intermittent compression spring applies a load with a certain frequency to the bearing, and the additional load applied in the actual use process is simulated.
Description
Technical Field
The utility model belongs to the technical field of the bearing test technique and specifically relates to an impact load device among bearing life test.
Background
The bearings are often subjected to additional loads during use, such as impact forces, unbalanced forces, etc., which may have a certain effect on the service life of the bearings. The existing conventional bearing life test generally only has constant additional load, so the difference between the test and the actual use process is large, and the test result cannot objectively reflect the actual service life of the bearing.
Therefore, there is a need for an impact loading apparatus that can simulate unbalanced supplemental loads during use.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to not enough among the prior art, provide an impact load device among bearing life test, thereby drive the compression spring of cam rotation clearance nature through servo motor, give the bearing and apply the impact load of certain frequency to the additional load that simulation in-service use process received.
In order to solve the technical problem, the utility model discloses a following technical scheme can solve: an impact load device in a bearing service life test comprises a rack and a servo motor, wherein an impact load fixing sleeve and a follow-up bearing mounting shaft for mounting a follow-up bearing are arranged on the rack; a pressure sensor fixing sleeve is arranged in the impact load fixing sleeve, a pressure sensor is mounted on one end face of the pressure sensor fixing sleeve, a spring guide rod is mounted on the other end face of the pressure sensor fixing sleeve, one end of the pressure sensor is connected with a loading head, and the loading head is connected with a stress plate; a spring is connected between the spring pressing sleeve and the pressure sensor fixing sleeve; and an output shaft of the servo motor is provided with a cam, and the cam and the outer edge of the follow-up bearing are in clearance collision to apply clearance impact load.
Further optimizing, still sliding connection has the self-lubricating copper sheathing that is used for adjusting pressure size between the fixed cover of impact load with the spring pressure cover.
Further preferably, the pressure sensor fixing sleeve is arranged on the end face of the self-lubricating copper sleeve.
Further preferably, an inner hole is formed in the spring pressing sleeve, one end of the spring is sleeved in the inner hole of the spring pressing sleeve, and the other end of the spring is sleeved in the spring guide rod.
Further preferably, a cam assembly base is arranged on the rack, a motor base is arranged on the cam assembly base, and the servo motor is arranged on the motor base.
Further optimization, the impact load fixing sleeve is provided with a pressure adjusting hole.
The beneficial effects of the utility model reside in that: 1. adopt the servo motor output shaft to be equipped with the cam, thereby contradict with following the commentaries on classics bearing intermittent type nature through the cam and provide inconstant impact load to simulate the inconstant impact load that receives with the pivot bearing among the in-service use process, accomplish the life-span test to following the commentaries on classics bearing. 2. When the concave surface of the cam is attached to the follow-up bearing, the spring is not compressed, and the stress plate is not stressed; when the convex surface of the cam is attached to the follow-up bearing, the spring is compressed, and the stress plate is stressed. Therefore, unstable force is applied to the stress plate, the servo motor is controlled to rotate at a certain rotating speed, the cam can be driven to rotate at the same rotating speed, the stress plate can be subjected to intermittent impact load, and the impact load frequency is determined by the rotating speed of the servo motor. The feasibility of the service life test is ensured. 3. The self-lubricating copper bush can move axially and can be used for adjusting the pressure so as to simulate different impact loads.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be discussed below, it is obvious that the technical solutions described in conjunction with the drawings are only some embodiments of the present invention, and for those skilled in the art, other embodiments and drawings can be obtained according to the embodiments shown in the drawings without creative efforts.
Fig. 1 is a schematic diagram of a side view of an impact load device in a bearing life test of the present invention.
Fig. 2 is a schematic view of the front view cross section of the present invention.
Fig. 3 is a schematic view of the present invention in a top view with a partial cross section.
In the figure: the device comprises a cam component base 1, a motor base 2, a servo motor 3, a cam 4, a follow-up rotating bearing 5, a follow-up rotating bearing mounting shaft 6, a spring 7, a spring pressing sleeve 8, an impact load fixing sleeve 9, a self-lubricating copper sleeve 10, a spring guide rod 11, a pressure sensor fixing sleeve 12, a pressure sensor 13, a loading head 14 and a stress plate 15.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments described in the present disclosure, all other embodiments obtained by a person skilled in the art without creative efforts are within the scope of the present disclosure.
The embodiment of the utility model provides an impact load device in bearing life test, as shown in fig. 1-3, including frame, servo motor 3, be equipped with impact load fixed cover 9, the bearing installation axle 6 that is used for following the installation of commentaries on classics bearing 5 in the frame, sliding connection has spring pressure cover 8 in impact load fixed cover 9, the one end of spring pressure cover 8 is equipped with the space that is used for following commentaries on classics bearing 5 and the bearing installation axle 6 holding of following commentaries on classics; a pressure sensor fixing sleeve 12 is arranged in the impact load fixing sleeve 9, one end face of the pressure sensor fixing sleeve 12 is provided with a pressure sensor 13, the other end face of the pressure sensor fixing sleeve 12 is provided with a spring guide rod 11, one end of the pressure sensor 13 is connected with a loading head 14, and the loading head 14 is connected with a stress plate 15; a spring 7 is connected between the spring pressing sleeve 8 and the pressure sensor fixing sleeve 12; an output shaft of the servo motor 3 is provided with a cam 4, and the cam 4 and the outer edge of the follow-up bearing 5 are in clearance collision to apply clearance impact load.
And a self-lubricating copper sleeve 10 for adjusting the pressure is also connected between the impact load fixing sleeve 9 and the spring pressing sleeve 8 in a sliding manner.
The pressure sensor fixing sleeve 12 is arranged on the end face of the self-lubricating copper sleeve 10.
An inner hole is formed in the spring pressing sleeve 8, one end of the spring 7 is sleeved in the inner hole of the spring pressing sleeve 8, and the other end of the spring 7 is sleeved in the spring guide rod 11.
The cam module base 1 is arranged on the rack, the motor base 2 is arranged on the cam module base 1, and the servo motor 3 is arranged on the motor base 2.
The impact load fixing sleeve 9 is provided with a pressure adjusting hole. The pressure is changed by sliding the impact load fixing sleeve 9 through the pressure adjusting hole.
The utility model discloses an use as follows: firstly, the follow-up bearing 5 is placed on the follow-up bearing mounting shaft 6, then the self-lubricating copper bush 10 is adjusted to a proper position, then the servo motor 3 is started, the servo motor 3 rotates to drive the cam 4 to rotate, when the concave surface of the cam 4 is attached to the follow-up bearing 5, the spring 7 is not compressed, and the stress plate 15 is not stressed; when the convex surface of the cam 4 abuts against the follow-up bearing 5, the spring 7 is compressed, and the force-bearing plate 15 receives force. The servo motor 3 is controlled to rotate at a certain rotating speed, the cam 4 is driven to rotate at the same rotating speed, the stress plate 15 can be subjected to intermittent impact load and can feed back the impact load to the pressure sensor 13, the pressure sensor 13 can show the impact load, and the impact load frequency is determined by the rotating speed of the servo motor 3.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. The scope of the invention is indicated by the appended claims, rather than the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides an impact load device in bearing life test, includes the frame, servo motor, its characterized in that: the impact load fixing sleeve is connected with a spring pressing sleeve in a sliding mode, and one end of the spring pressing sleeve is provided with a space for accommodating the follow-up bearing and the follow-up bearing mounting shaft; a pressure sensor fixing sleeve is arranged in the impact load fixing sleeve, a pressure sensor is mounted on one end face of the pressure sensor fixing sleeve, a spring guide rod is mounted on the other end face of the pressure sensor fixing sleeve, one end of the pressure sensor is connected with a loading head, and the loading head is connected with a stress plate; a spring is connected between the spring pressing sleeve and the pressure sensor fixing sleeve; and an output shaft of the servo motor is provided with a cam, and the cam and the outer edge of the follow-up bearing are in clearance collision to apply clearance impact load.
2. The impact load device in a bearing life test according to claim 1, characterized in that: and a self-lubricating copper sleeve for adjusting the pressure is also connected between the impact load fixing sleeve and the spring pressing sleeve in a sliding manner.
3. The impact load device in a bearing life test according to claim 2, wherein: the pressure sensor fixing sleeve is arranged on the end face of the self-lubricating copper sleeve.
4. The impact load device in a bearing life test according to claim 1, characterized in that: an inner hole is formed in the spring pressing sleeve, one end of the spring is sleeved in the inner hole of the spring pressing sleeve, and the other end of the spring is sleeved in the spring guide rod.
5. The impact load device in a bearing life test according to claim 1, characterized in that: the cam assembly base is arranged on the rack, the motor base is arranged on the cam assembly base, and the servo motor is arranged on the motor base.
6. The impact load device in a bearing life test according to claim 2, wherein: and the impact load fixing sleeve is provided with a pressure adjusting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022447230.6U CN213397629U (en) | 2020-10-29 | 2020-10-29 | Impact load device in bearing life test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022447230.6U CN213397629U (en) | 2020-10-29 | 2020-10-29 | Impact load device in bearing life test |
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| Publication Number | Publication Date |
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| CN213397629U true CN213397629U (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022447230.6U Active CN213397629U (en) | 2020-10-29 | 2020-10-29 | Impact load device in bearing life test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252276A (en) * | 2021-06-30 | 2021-08-13 | 西北工业大学 | Impact collision test system for needle bearing retainer |
-
2020
- 2020-10-29 CN CN202022447230.6U patent/CN213397629U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252276A (en) * | 2021-06-30 | 2021-08-13 | 西北工业大学 | Impact collision test system for needle bearing retainer |
| CN113252276B (en) * | 2021-06-30 | 2021-10-08 | 西北工业大学 | Impact collision test system for needle bearing retainer |
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