CN104406791A - Device and method for detecting performance of bearings - Google Patents
Device and method for detecting performance of bearings Download PDFInfo
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- CN104406791A CN104406791A CN201410730125.XA CN201410730125A CN104406791A CN 104406791 A CN104406791 A CN 104406791A CN 201410730125 A CN201410730125 A CN 201410730125A CN 104406791 A CN104406791 A CN 104406791A
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Abstract
The invention provides a device and a method for detecting the performance of bearings. The device comprises a bearing test bed, a conveying belt, public axles, public bearings, shaft boxes for the public bearings, public flanges, axles for test, flanges for test, test bearings and shaft boxes for the test bearings, wherein one end of each public axle is connected with each public flange and is provided with each public bearing; the public bearings are arranged in the shaft boxes for the public bearings; the shaft boxes for the public bearings are fixedly connected with the test bed. During detection, one end of each axle for test is connected with each flange for test, and the other end of each axle for test is provided with each test bearing; the test bearings are mounted in the shaft boxes for the test bearings to form a test body. The flanges for test are detachably connected with the public flanges, so that the test body is connected with the public axles; after detection, the test body can be detached from the public axles. According to the device and the method for detecting the performance of the bearing, the generality and the interchangeability of a trial bearing can be obviously improved, and the mounting and dismounting efficiency is greatly improved; meanwhile, difficulty in storage, management and maintenance is reduced to a larger extent.
Description
Technical field
The present invention relates to mechanical field, more specifically, relate to a kind of apparatus and method detected for bearing performance.
Background technology
In rail vehicles EEF bogie, bearing is the most important and holds one of flimsy parts most, the quality of its quality is directly connected to the property safe and reliable to operation of rolling stock, bearing must be tested to its permanance and assess before use, to guarantee that it has good utilization quality and reliable and secure performance.According to bearing evaluation criteria EN12082 " rail facility. axle box. performance test " related request, require on bearing, to apply vertical load and transverse load according to specific load block recycle design, and keep certain speed of experiment and simulation mileage.At present, during domestic and international bearing stand experimental sample design, there is following features:
1. the test run axle of accompanying in experimental sample is an overall axletree, this accompanies test run axle to play three effects: 1) accompany the center section of test run axle to install two spring bearings, namely examination bearing is accompanied, accompany examination bearing to be installed to and accompany in examination bearing axle box, accompany examination bearing axle box and testing table frame to be bolted to connection; 2) accompany the two ends of test run axle that tested bearing is installed, tested bearing is connected with loading frock axle box simultaneously; 3) accompany on test run axle and have belt pulley seat, for installing belt pulley, during experiment, motor is driven by belt and belt pulley and accompanies examination bearing rotary.
2. after bearing completes experiment, need belt pulley, accompany examination bearing, accompany examination bearing axle box, accompany test run axle, tested bearing dismantles together, carry out moving back of tested bearing after dismounting again and unload Sum decomposition, then new tested bearing is installed, and will new tested bearing, belt pulley is comprised, accompany examination bearing, accompany examination bearing axle box, accompany the sample of test run axle composition to be installed to together in testing table frame.
3. above-mentioned moving back is unloaded with installation process comparatively complicated, expends man-hour longer, if there is the tested bearing of Multiple Type different size, then accompanies between test run axle and can not exchange, and needs to prepare multiplely to accompany test run axle, and sample processing cost significantly increases.In addition, change when accompanying test run axle, need to move back to unload to accompany examination bearing, accompany the expensive of examination bearing, move back and unload and press-fit in process and may sustain damage, accompany test run axle also easily to occur pulling.Even if accompany examination bearing not damage moving back in the process of unloading, accompany moving back to unload and reinstall and also having higher technical difficulty of examination bearing, complicated operation and time-consuming, the examination bearing performance of accompanying reinstalled after decomposition may change.
When 4. accompanying test run axle to deposit, the space taken is comparatively large, and need anti-bump injury, the safeguard measure such as antirust, if accompany the quantity of test run axle more, can deposit laboratory, manage, maintenance etc. causes certain difficulty simultaneously.
As the above analysis, existing bearing stand experimental sample in experimental implementation, manufacturing expense, deposit and all there is certain problem in maintenance, experimental cost is high, is unfavorable for ensureing bearing application safety.
Summary of the invention
For overcoming the above-mentioned defect of prior art, the present invention proposes a kind of apparatus and method detected for bearing performance.
According to an aspect of the present invention, propose a kind of device detected for bearing performance, comprise bearing test-bed, travelling belt, public axletree and public bearing, public bearing axle box, public flange, test axletree, test flange, test bearing and test bearing axle box, wherein: one end of described public axletree connects described public flange, assemble described public bearing, described public bearing is positioned in described public bearing axle box, and described public bearing axle box is fixedly connected with described bearing test-bed; During detection, described test connects described test flange with one end of axletree, the other end of described test axletree assembles described test bearing, described test bearing is positioned in described test bearing axle box, makes described test axletree, described test flange, described test bearing and described test bearing axle box form a test body; And described test flange by securing member can releasably with described public Flange joint, thus when detecting, described test body is connected with described public axletree, the travelling belt of described bearing test-bed drives described public axletree to rotate, and then drive described test axletree to rotate, and after sensing described test body is dismantled from described public axletree.。
According to a further aspect in the invention, propose a kind of bearing performance method of testing, the method comprises:
Step 1: assemble public flange in one end of public axletree, assembles public bearing, and described public bearing is positioned in public bearing axle box, and described public bearing axle box is fixedly connected with bearing test-bed; Step 2: test flange in the assembling of one end of test axletree, other end assembling test bearing, described test bearing is positioned in test bearing axle box, makes described test axletree, described test flange, described test bearing and described test bearing axle box form a test body; Step 3: releasably can connect described public flange and described test flange, be connected in described test bearing by loading frock axle box, for described test bearing imposed load; Step 4: drive described public axletree to rotate, drive described public flange and described test flange to rotate by the travelling belt of described bearing test-bed, and then drive described test axletree to rotate, simultaneously by imposed load on described loading frock axle box, complete the detection of bearing performance; With step 5: after described detection completes, described test flange to be pulled down from described public flange, thus by described test body from described public axletree dismounting.
According to a further aspect of the invention, propose a kind of bearing performance detection method, comprise: step 1: assemble public flange respectively at the two ends of public axletree, assemble public bearing, described public bearing is positioned in public bearing axle box, and described public bearing axle box is fixedly connected with bearing test-bed; Step 2: test flange in the assembling of one end of test axletree, other end assembling test bearing, described test bearing is positioned in test bearing axle box, make described test axletree, described test flange, described test bearing and described test bearing axle box form a test body, assemble a pair of identical described test body; Step 3: releasably can connect described public flange and described test flange respectively, test bearing described in each is all connected with and loads frock axle box, for described test bearing imposed load; Step 4: drive described public axletree to rotate, drive described public flange and described test flange to rotate by the travelling belt of described bearing test-bed, and then drive described test axletree to rotate, simultaneously by imposed load on described loading frock axle box, complete the detection of bearing performance; With step 5: after described detection completes, described test flange to be pulled down from described public flange, thus by described a pair test body from described public axletree dismounting.
The invention has the beneficial effects as follows: 1. conveniently can move back and unload by high degree, improve the efficiency changing sample, when changing test bearing, only need by dismantle flange securing member (such as, bolt) just can unload test axletree and test bearing, need not move back and unload public bearing and public bearing axle box; 2. unload public bearing and public bearing axle box owing to moving back, decrease owing to decomposing and installing the possibility causing public damage of the bearing, hydraulic performance decline or public axletree to pull; 3. after axletree adopts Split type structure, avoid due to test bearing change in size and change the problem of accompanying test run axle, decreasing the model of public axletree on the one hand, reducing the processing charges of public axletree on the other hand; 4. the parking space of public axletree and test axletree significantly reduces, and is convenient to administering and maintaining of experimental sample; 5. need the public number of bearings prepared obviously to reduce, in addition, the dirigibility carrying out the platform experiments such as bearing durability experiment and thermal behavior significantly strengthens.
Accompanying drawing explanation
Fig. 1 is according to an embodiment of the invention for the structural representation after the assembling of bearing performance pick-up unit.In figure, 1. bearing test-bed, 2. loads frock axle box, 3. test bearing, 4. test axletree, 5. test flange, 6. public flange, 7. embedded fastening bolt, 8. public bearing axle box, 9. public bearing, 10. travelling belt, 11. public axletrees.
In order to the structure of embodiments of the invention clearly can be realized, specific size, structure and device are marked in the drawings, but this is only signal needs, be not intended to limit the invention in this specific dimensions, structure, device and environment, according to specific needs, these devices and environment can carry out adjusting or revising by those of ordinary skill in the art, and the adjustment carried out or amendment are still included in the scope of accompanying claim.
Embodiment
Below in conjunction with the drawings and specific embodiments, a kind of apparatus and method for bearing performance detection provided by the invention are described in detail.
In the following description, for those skilled in the art, can only utilize some or all structure of the present invention or flow process to implement the present invention.In order to the definition explained, set forth specific number, configuration and order, but clearly, also can implement the present invention when there is no these specific detail.In other cases, in order to not obscure the present invention, will no longer be described in detail for some well-known features.
Generally speaking, as shown in Figure 1, according to the first embodiment of the present invention, a kind of device for bearing performance detection of the present invention comprises bearing test-bed 1, travelling belt 10, public axletree 11 and public bearing 9, public bearing axle box 8, public flange 6, test axletree 4, test flange 5, test bearing 3 and test bearing axle box.One end of public axletree 11 connects public flange 6, assembles public bearing 9.Public bearing 9 is positioned in public bearing axle box 8, and public bearing axle box 8 is fixedly connected with bearing test-bed 1.During detection, test one end connecting test flange 5 of axletree 4, other end assembling test bearing 3, test bearing 3 is positioned in test bearing axle box, thus a composition test body.Test flange 5 is removably connected with public flange 6 by securing member, thus is connected with public axletree by test body when detecting.The travelling belt of bearing test-bed 1 drives public axletree 11 to rotate, and then drives test axletree 4 to rotate.After having detected bearing performance, test body is dismantled from public axletree 11.According to an example, described securing member can comprise bolt 7, but securing member is not limited thereto, and any securing member that this area can be adopted conventional.
Mentality of designing of the present invention is: the test run axle of accompanying mentioned in background technology is divided into two parts---the public axletree of bearing test-bed and test axletree, two-part interface section is all provided with flange.The public axletree of bearing experiment table passes through securing member and the Flange joint test axletree of such as bolt, and the two parts separated like this re-assembly integral.Such design, decreases the model of public axletree, and test axletree can be Multiple Type, is equivalent to the relation of one-to-many, and namely public axletree just can be tested the bearing of corresponding multiple different model.
Particularly, can adopt hot charge practice that public for bearing test-bed flange 6 is loaded the public axletree of bearing experiment table, public axletree assembles public bearing, public bearing is positioned in public bearing axle box, by bolt, public bearing axle box 8 is installed in testing table frame 1, now testing table part installation (this part is called step 1).Test flange 5 and test axletree 4 are assembled, then test bearing and test axletree 4 are assembled together, be bolted test flange and public flange, test bearing be positioned over test bearing axle box, install rear installation and load frock axle box 2 (step 2).After above-mentioned installation process terminates, arranged applying numerical value and applying mode, experiment rotating speed and the experimental simulation mileage of experiment load by switch board, concrete numerical value and experiment method are determined according to research contents and research purpose.As required the vertical load of regulation in the travelling speed of simulation 1.1 times, the experiment mileage of 800,000 kilometers and this standard and the program block spectrum of transverse load in EN12082.After setting experiment condition, start related experiment and test the experimental datas such as such as bearing temperature, acceleration, noise, experiment mileage.
During the test bearing more renewed after experiment terminates, except special circumstances (as the carrying scope of testing load, travelling speed exceeds public bearing), do not need the operation carrying out step 1, only need the associative operation carrying out step 2.
In a particular application, the test of bearing is all generally pairwise testing, so, above-mentioned structure can be symmetrical, and that is public bearing is a pair, is assemblied on a public axletree, the two ends public flange of fit on respectively of public axletree, test body is a pair, and 2 public flanges respectively with 2 test flanges are connected, and then test as stated above.
In the second embodiment of the present invention, provide a kind of bearing performance detection method, the method comprises:
Step 1: assemble public flange in one end of public axletree, assembles public bearing, and public bearing is positioned in public bearing axle box, and public bearing axle box is fixedly connected with bearing test-bed; Step 2: test flange in the assembling of one end of test axletree, other end assembling test bearing, test bearing is positioned in test bearing axle box, thus a composition test body; Step 3: removably connect public flange and test flange, is connected in test bearing by loading frock axle box, for test bearing imposed load; Step 4: drive public axletree to rotate, drive public flange and test flange to rotate by the travelling belt of bearing test-bed, and then drive test axletree to rotate, simultaneously by imposed load on loading frock axle box, complete the detection of bearing correlated performance; Step 5: after detection completes, pulls down test flange from public flange, thus is dismantled from public axletree by test body.
In like manner, said method also can detect pair of bearings simultaneously, specific as follows:
Step 1: assemble public flange respectively at the two ends of public axletree, assembles public bearing, and described public bearing is positioned in public bearing axle box, and described public bearing axle box is fixedly connected with bearing test-bed;
Step 2: test flange in the assembling of one end of test axletree, other end assembling test bearing, described test bearing is positioned in test bearing axle box, make described test axletree, described test flange, described test bearing and described test bearing axle box form a test body, assemble a pair of identical described test body;
Step 3: releasably can connect described public flange and described test flange respectively, test bearing described in each is all connected with and loads frock axle box, for described test bearing imposed load;
Step 4: drive described public axletree to rotate, drive described public flange and described test flange to rotate by the travelling belt of described bearing test-bed, and then drive described test axletree to rotate, simultaneously by imposed load on described loading frock axle box, complete the detection of bearing performance; With
Step 5: after described detection completes, pulls down described test flange from described public flange, thus by described a pair test body from described public axletree dismounting.
In concrete practical application, the embody rule platform of the unit of inventor is aurification institute bearing test-bed (non-standard), at ordinary times for carrying out bearing durability experiment and heat performance experiment, need to prepare 4 (15) 2724 separately, 4 (15) 2726 (P) type, BT2-8690D, 639605E, NJ (P) 3226X1 type, 352226X2, 353130A, 197720, 197726, 197730, 808997, AP130, AP150, 353130B, the durability experiment of the bearings such as CTBU150 accompany test run axle, accompany test run shaft length 1600mm, after adopting new experimental technique, public axletree (namely accompanying test run axle) size can shorten to 1000mm, and quantity is reduced to 1 by more than ten roots, greatly save parking space and experimental cost.
Apparatus and method provided by the invention, versatility and the interchangeability of accompanying examination (public) axletree He accompanying examination (public) bearing can be significantly improved, greatly improve and install and move back and unload efficiency, storage and managenent and difficult in maintenance can be reduced simultaneously largely.
Finally it should be noted that, above embodiment is only in order to describe technical scheme of the present invention instead of to limit this technical method, the present invention can extend in application other amendment, change, application and embodiment, and therefore think that all such amendments, change, application, embodiment are all in spirit of the present invention and teachings.
Claims (5)
1., for the device that bearing performance detects, comprise bearing test-bed, travelling belt, public axletree and public bearing, public bearing axle box, public flange, test axletree, test flange, test bearing and test bearing axle box, wherein:
One end of described public axletree connects described public flange, and assemble described public bearing, described public bearing is positioned in described public bearing axle box, and described public bearing axle box is fixedly connected with described bearing test-bed;
During detection, described test connects described test flange with one end of axletree, the other end of described test axletree assembles described test bearing, described test bearing is positioned in described test bearing axle box, makes described test axletree, described test flange, described test bearing and described test bearing axle box form a test body; And
Described test flange by securing member can releasably with described public Flange joint, thus when detecting, described test body is connected with described public axletree, the travelling belt of described bearing test-bed drives described public axletree to rotate, and then drive described test axletree to rotate, and after sensing described test body is dismantled from described public axletree.
2. device according to claim 1, wherein, described securing member comprises bolt.
3. device according to claim 1, wherein, also comprise and load frock axle box, described loading frock axle box is connected to described test bearing, for described test bearing imposed load.
4. a bearing performance detection method, comprising:
Step 1: assemble public flange in one end of public axletree, assembles public bearing, and described public bearing is positioned in public bearing axle box, and described public bearing axle box is fixedly connected with bearing test-bed;
Step 2: test flange in the assembling of one end of test axletree, other end assembling test bearing, described test bearing is positioned in test bearing axle box, makes described test axletree, described test flange, described test bearing and described test bearing axle box form a test body;
Step 3: releasably can connect described public flange and described test flange, be connected in described test bearing by loading frock axle box, for described test bearing imposed load;
Step 4: drive described public axletree to rotate, drive described public flange and described test flange to rotate by the travelling belt of described bearing test-bed, and then drive described test axletree to rotate, simultaneously by imposed load on described loading frock axle box, complete the detection of bearing performance; With
Step 5: after described detection completes, pulls down described test flange from described public flange, thus by described test body from described public axletree dismounting.
5. a bearing performance detection method, comprising:
Step 1: assemble public flange respectively at the two ends of public axletree, assembles public bearing, and described public bearing is positioned in public bearing axle box, and described public bearing axle box is fixedly connected with bearing test-bed;
Step 2: test flange in the assembling of one end of test axletree, other end assembling test bearing, described test bearing is positioned in test bearing axle box, make described test axletree, described test flange, described test bearing and described test bearing axle box form a test body, assemble a pair of identical described test body;
Step 3: releasably can connect described public flange and described test flange respectively, test bearing described in each is all connected with and loads frock axle box, for described test bearing imposed load;
Step 4: drive described public axletree to rotate, drive described public flange and described test flange to rotate by the travelling belt of described bearing test-bed, and then drive described test axletree to rotate, simultaneously by imposed load on described loading frock axle box, complete the detection of bearing performance; With
Step 5: after described detection completes, pulls down described test flange from described public flange, thus by described a pair test body from described public axletree dismounting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410730125.XA CN104406791A (en) | 2014-12-04 | 2014-12-04 | Device and method for detecting performance of bearings |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410730125.XA CN104406791A (en) | 2014-12-04 | 2014-12-04 | Device and method for detecting performance of bearings |
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| CN104406791A true CN104406791A (en) | 2015-03-11 |
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| CN201410730125.XA Pending CN104406791A (en) | 2014-12-04 | 2014-12-04 | Device and method for detecting performance of bearings |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107632218A (en) * | 2017-09-23 | 2018-01-26 | 吉林大学 | Omnipotent ground structure fixes alternative |
| CN111780975A (en) * | 2020-08-18 | 2020-10-16 | 安徽朝坤测试设备有限公司 | Rolling bearing noise detection device |
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