CN204718808U - A kind of testing machine testing microminiature high speed deep groove ball bearing fatigue lifetime - Google Patents
A kind of testing machine testing microminiature high speed deep groove ball bearing fatigue lifetime Download PDFInfo
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- CN204718808U CN204718808U CN201520421167.5U CN201520421167U CN204718808U CN 204718808 U CN204718808 U CN 204718808U CN 201520421167 U CN201520421167 U CN 201520421167U CN 204718808 U CN204718808 U CN 204718808U
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Abstract
The utility model provides a kind of testing machine testing microminiature high speed deep groove ball bearing fatigue lifetime, a kind of testing machine testing microminiature high speed deep groove ball bearing fatigue lifetime, comprise testing machine casing, experiment electric motor, firm banking, test bearing seat, axial loading device and test main shaft, wherein testing main shaft is fixed on test bearing seat, test bearing seat and test main shaft are all arranged in testing machine casing, testing machine casing and experiment electric motor are all fixed on firm banking, it is also provided with flexible attachment, flexibility is fixed 3 and is connected with test main shaft by the axle of experiment electric motor.The utility model device solves the problem of testing machine loaded load low precision, achieves test main shaft high speed stable rotation, and testing machine casing and test bearing seat realize displacement to be changed and load, and improves loading accuracy, simplifies testing machine structure.
Description
Technical field
The utility model relates to bearing test technical field, especially a kind of testing machine testing microminiature high speed deep groove ball bearing fatigue lifetime.
Background technology
Deep groove ball bearing is applicable to the even ultrahigh rotating speed operation of high rotating speed, deep groove ball bearing is rapid wear accessory, deep groove ball bearing performance directly affects the stability of mechanical system, also one of plant equipment major failure, therefore use safely in order to ensure deep groove ball bearing, need to carry out fail-test to deep groove ball bearing testing machine to bearing, according to the actual installation operating mode of bearing on deep groove ball bearing testing machine, actual motion state, the i.e. rotating speed of bearing, axial load, radial load and environment temperature, lubricating status etc. press actual condition given rotating speed, reach predetermined age or arrive bearing failure.The loaded load of test bearing is as the important parameter of bearing tester, and its accuracy directly affects the test findings of bearing.
For microminiature high speed deep groove ball bearing, there is the following defect in current bearing fatigue life test machine:
(1) microminiature high speed deep groove ball bearing size is little, and current bearing fatigue testing machine cannot be installed.
(2) the high rotating speed needed for testing machine, common shaft coupling cannot meet between motor and testing machine casing
Connect.
Several mode is mainly contained for load mode in current testing machine:
(1) lever-loading: loading advantage is that structure is simple, does not need load transducer test, has and loads the size that counterweight can determine load, but return at high speeds and cause counterweight to vibrate, cause load instability.
(2), due to the rim effect of hydraulic cylinder, in actual test, there is error in hydraulic loaded: this load mode is simple, noiseless, but temperature influence is large, and precision is low, and claimed apparatus has high sealing.
(3) load mode of most of testing machine is rigid loading, and loaded load differs and is all applied on test bearing surely.
Utility model content
The purpose of this utility model is the problems referred to above existed for existing technology, provide a kind of testing machine testing microminiature high speed deep groove ball bearing fatigue lifetime, the utility model device solves the problem of testing machine loaded load low precision, achieve test main shaft high speed stable rotation, testing machine casing and test bearing seat realize displacement to be changed and loads, improve loading accuracy, simplify testing machine structure.
For this reason, the technical solution that the utility model is taked is: a kind of testing machine testing microminiature high speed deep groove ball bearing fatigue lifetime, comprise testing machine casing, experiment electric motor, firm banking, test bearing seat, axial loading device and test main shaft, wherein testing main shaft is fixed on test bearing seat, test bearing seat and test main shaft are all arranged in testing machine casing, testing machine casing and experiment electric motor are all fixed on firm banking, it is also provided with flexible attachment, and the axle of experiment electric motor is connected with test main shaft by flexible attachment.
The testing machine of above-mentioned test microminiature high speed deep groove ball bearing fatigue lifetime, can also be, it be also provided with radial loading device.
The testing machine of above-mentioned test microminiature high speed deep groove ball bearing fatigue lifetime can also be that described axial loading device and radial loading device are formed by nut, spring, nut screw, nut slider and loading holder.
The testing machine of above-mentioned test microminiature high speed deep groove ball bearing fatigue lifetime can also be that described nut is Tang thread double nut.
The testing machine of above-mentioned test microminiature high speed deep groove ball bearing fatigue lifetime can also be that described flexible attachment is rubber ring.
The testing machine of above-mentioned test microminiature high speed deep groove ball bearing fatigue lifetime can also be provided with between described testing machine casing and described test bearing seat and load gap.
The testing machine of above-mentioned test microminiature high speed deep groove ball bearing fatigue lifetime can also be load on holder and be provided with observation groove.
Beneficial effect of the present invention is, it can detect the fatigue lifetime of microminiature high speed deep groove ball bearing, test main shaft is connected by flexible attachment with experiment electric motor, experiment electric motor and test main shaft high speed stable rotation can be made, nut-screw rod and Tang thread double nut is used to compress axle spring and radial spring, flexible loading is produced to test bearing, make loading more reliable and accurate, when making test axially and radial loaded load more accurate, can continue for a long time to load, and load and use spring-compressed to load and Tang thread pairs of anti-loose nut, decrease device for measuring force, simplify apparatus structure.
Accompanying drawing explanation
Fig. 1 is the structural representation of the testing machine of test microminiature high speed deep groove ball bearing of the present utility model fatigue lifetime.
In figure: 1-testing machine casing; 2-test bearing; 3-flexible attachment; 4-experiment electric motor; 5-firm banking; 6-test bearing seat; 7-tests main shaft, 8-radial loading device; 9-axial loading device; 10-nut; 11-spring; 12-nut-screw rod; 13-nut slider.
Embodiment
For making feature of the present utility model and advantage clearly, be described below in conjunction with specific embodiment.
As shown in Figure 1, a kind of testing machine testing microminiature high speed deep groove ball bearing fatigue lifetime, comprise testing machine casing 1, experiment electric motor 4, firm banking 5, test bearing seat 6, axial loading device 9 and test main shaft 7, wherein testing main shaft 7 is fixed on test bearing seat 6, test bearing seat 6 and test main shaft 7 are all arranged in testing machine casing 1, testing machine casing 1 and experiment electric motor 4 are all fixed on firm banking 5, it is also provided with flexible attachment 3, and the axle of experiment electric motor is connected with test main shaft by flexible attachment.In the present embodiment, it also arranges a radial loading device 8.
In the present embodiment, described axial loading device 9 and radial loading device 8 are by nut 10, spring 11, nut screw 12, nut slider 13 and load holder formation, wherein load holder and are fixed on firm banking 5.As preferably, the nut in the present embodiment preferably selects Tang thread double nut.
Above-mentioned flexible attachment 3 can be various ways, as common design, generally can adopt rubber ring.
Usually be provided with between above-mentioned testing machine casing 1 and described test bearing seat 6 and load gap.
The testing machine of above-mentioned test microminiature high speed deep groove ball bearing fatigue lifetime, can be provided with observation groove, can measure the decrement of spring, thus calculate loaded load size by observing groove, guarantee loaded load precision on loading holder.
When actual tests, experiment electric motor 4 rotates through the test main axis in flexible attachment 3 motoring ring test box body 1, thus motoring ring test bearing 2 rotates.Axis and radial load loading is carried out by radial loading device 8 and axial loading device 9 pairs of test bearings 2.Loading procedure drives the axial translation Compress Spring 9 of nut slider 11 to produce elastic force by rotating nut leading screw 10 to carry out load on to test bearing 2.
Shaft coupling between experiment electric motor 4 with testing machine casing 1 is changed into flexible attachment by the testing machine that a kind of in the present embodiment tests microminiature high speed deep groove ball bearing fatigue lifetime, be connected by flexible attachment 3 by between the axle of experiment electric motor and test main shaft, thus realize shaft coupling and be beyond one's reach at a high speed, stable; Test bearing seat 6 and testing machine casing 1 have certain loading gap, deformation are loaded and change displacement change loading into; Being changed by rigid loading by load mode is flexible loading, and charger is used spring-compressed instead and loaded and Tang thread pairs of anti-loose nut, and the precision that improve loading additionally reduces device for measuring force.
Should be understood that above embodiment is only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Claims (7)
1. test the testing machine of microminiature high speed deep groove ball bearing fatigue lifetime for one kind, comprise testing machine casing, experiment electric motor, firm banking, test bearing seat, axial loading device and test main shaft, wherein testing main shaft is fixed on test bearing seat, test bearing seat and test main shaft are all arranged in testing machine casing, testing machine casing and experiment electric motor are all fixed on firm banking, it is characterized in that, it is also provided with flexible attachment, and the axle of experiment electric motor is connected with test main shaft by flexible attachment.
2. the testing machine of test microminiature high speed deep groove ball bearing according to claim 1 fatigue lifetime, it is characterized in that, it is also provided with radial loading device.
3. the testing machine of test microminiature high speed deep groove ball bearing according to claim 1 fatigue lifetime, it is characterized in that, described axial loading device and radial loading device are formed by nut, spring, nut screw, nut slider and loading holder.
4. the testing machine of test microminiature high speed deep groove ball bearing according to claim 3 fatigue lifetime, it is characterized in that, described nut is Tang thread double nut.
5. the testing machine of test microminiature high speed deep groove ball bearing according to claim 1 fatigue lifetime, it is characterized in that, described flexible attachment is rubber ring.
6. the testing machine of test microminiature high speed deep groove ball bearing according to claim 1 fatigue lifetime, is characterized in that, be provided with and load gap between described testing machine casing and described test bearing seat.
7. the testing machine of test microminiature high speed deep groove ball bearing according to claim 1 fatigue lifetime, is characterized in that, load on holder and be provided with observation groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520421167.5U CN204718808U (en) | 2015-06-18 | 2015-06-18 | A kind of testing machine testing microminiature high speed deep groove ball bearing fatigue lifetime |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520421167.5U CN204718808U (en) | 2015-06-18 | 2015-06-18 | A kind of testing machine testing microminiature high speed deep groove ball bearing fatigue lifetime |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204718808U true CN204718808U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520421167.5U Expired - Fee Related CN204718808U (en) | 2015-06-18 | 2015-06-18 | A kind of testing machine testing microminiature high speed deep groove ball bearing fatigue lifetime |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560856A (en) * | 2017-11-01 | 2018-01-09 | 杭州电子科技大学 | Automobile engine tension wheel shaft bearing life-span simulation test machine and its analogy method |
| CN107607243A (en) * | 2017-10-18 | 2018-01-19 | 慈兴集团有限公司 | A kind of bearing tilting torque testing machine |
| CN108801633A (en) * | 2017-04-27 | 2018-11-13 | 聊城市产品质量监督检验所 | A kind of novel bearing fatigue life test machine |
| CN109540521A (en) * | 2019-01-21 | 2019-03-29 | 三峡大学 | A kind of ball bearing abrasion original reason test platform |
| CN113188796A (en) * | 2021-04-14 | 2021-07-30 | 人本股份有限公司 | High-speed testing machine for gear shaft bearing group |
-
2015
- 2015-06-18 CN CN201520421167.5U patent/CN204718808U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801633A (en) * | 2017-04-27 | 2018-11-13 | 聊城市产品质量监督检验所 | A kind of novel bearing fatigue life test machine |
| CN107607243A (en) * | 2017-10-18 | 2018-01-19 | 慈兴集团有限公司 | A kind of bearing tilting torque testing machine |
| CN107560856A (en) * | 2017-11-01 | 2018-01-09 | 杭州电子科技大学 | Automobile engine tension wheel shaft bearing life-span simulation test machine and its analogy method |
| CN107560856B (en) * | 2017-11-01 | 2019-05-28 | 杭州电子科技大学 | Automobile engine tension wheel shaft bearing service life simulation test machine and its analogy method |
| CN109540521A (en) * | 2019-01-21 | 2019-03-29 | 三峡大学 | A kind of ball bearing abrasion original reason test platform |
| CN109540521B (en) * | 2019-01-21 | 2021-03-23 | 三峡大学 | Ball bearing wearing principle test bed |
| CN113188796A (en) * | 2021-04-14 | 2021-07-30 | 人本股份有限公司 | High-speed testing machine for gear shaft bearing group |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20160618 |
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| CF01 | Termination of patent right due to non-payment of annual fee |