CN1004516B - Vibration friction abrasion testing machine - Google Patents
Vibration friction abrasion testing machine Download PDFInfo
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- CN1004516B CN1004516B CN86108220.6A CN86108220A CN1004516B CN 1004516 B CN1004516 B CN 1004516B CN 86108220 A CN86108220 A CN 86108220A CN 1004516 B CN1004516 B CN 1004516B
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- testing machine
- friction abrasion
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- vibration
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Abstract
The present invention relates to a vibration friction abrasion testing machine. A vibration exciter [1] is connected with the integral testing machine through a force measuring falling mechanism [3], and a gripping head [15] of a test sample, so that vibration pressure and static loading pressure can load simultaneously and respectively. Because various types of friction abrasion performance testing and contrast testing for static loading, impact and vibration for materials can be carried out on the same testing machine, the present invention shows that a working load influences the friction abrasion performance of the materials. Therefore, the present invention eliminates factors influenced by errors and improves the comparability of the testing.
Description
The invention belongs to the testing machine that test material resistance to wears or denudes.
Domestic and international existing friction wear testing machine has only single type, and the friction wear testing machine of friction type again.Various tests can only be carried out respectively on different testing machines, thereby error effect is more, and influence factor is incomplete same again, so comparability is poor, even can not compare sometimes.
Because the progress of " vibrating and develop and useining " needs the friction and wear behavior of research material under vibration operating mode or friction operating mode, and vibrates the influence of material friction being learned characteristic, this just needs the vibration friction abrasion testing machine of analog vibration operating mode type.When making friction-wear test, require sample be equal to or close abrasive conditions under carry out, the test figure dispersion of gained is just little like this, test figure just has reappearance and comparability, this cause close important.
At above-mentioned every needs and requirement, the spy makes the present invention.
The present invention is the friction wear testing machine of multifunctional usage.Owing to can on same testing machine, carry out static load, impact, the various types of friction and wear behavior tests of vibration and contrast test to material, disclose the influence of operating load to the material friction polishing machine, thereby eliminated the factor of some error effects, improved the comparability of test.
This vibration friction abrasion testing machine is made up of vibrator, variable part, loading and sample chuck balance device, down widely different rotating disk part, proving installation and electrical control, its vibrator is connected with food tray (7) or abrasive material groove (31) by the dynamometry mechanism (3) that comes off, the sample chuck is connected with last widely different rotating shaft (11) by fulcrum post, its vibration pressure and static load pressure can be loaded simultaneously and can load respectively.
With the example of vibration friction abrasion testing machine, in conjunction with the accompanying drawings, invention is further described below:
Fig. 1: vibration friction abrasion testing machine.
Fig. 2: test chuck.
Fig. 3: the dynamometry mechanism that comes off.
Fig. 4: abrasive material groove.
1, vibration source part: comprise vibrator (1), sensor (2) and the dynamometry mechanism (3) that comes off.Vibrator (1) is an electromagnetic exciter, and vibration frequency and amplitude size that it produces are regulated by electric control system (30).
Fig. 3 is the come off cut-away view of mechanism (3) of dynamometry.Following overcoat (20) is enclosed within on vibrator boss (19), the exciter shaft core (21), and sliding screw (22) is contained in the sliding sleeve (23), and the flange lower surface of sliding sleeve (23) contacts with sensor (2).When vibrator was worked, the exciting that vibrator sent was delivered to down style (17) or abrasive material (33) (see figure 4) by exciter shaft core (21) and contacting of sliding screw (22).Control contacting or disengaging of exciter shaft core (21) and sliding screw (22) by setting nut (24).
When needs measuring vibrations pressure, rotation setting nut (24) moves up sliding screw (22), (22) break away from exciter shaft core (21), sensor (2) fixedly is in not contact condition of nature in the end housing plane with vibrator (1), and setting nut (24) contacts with sliding sleeve (23) upper surface, makes sensor (2) stressed and spread out of the vibration pressure signal.When not needing to measure, only need rotation setting nut (24) upwards, sliding screw (22) is moved downward with exciter shaft core (21) contact, and setting nut (24) disengages with sliding sleeve (23) upper surface, thereby throw off sensor (2).So both guarantee the measuring accuracy of sensor, prolonged the serviceable life of sensor again.
When vibrator is not worked, rotation setting nut (24), it is contacted with sliding sleeve (23) all the time, and sliding screw (22) and exciter shaft core (21) are broken away from, static load power makes the soft spring in the vibrator move down (promptly (19) move down), make sensor (2) and vibrator (1) fixedly be in contact condition in the end housing plane, sensor spreads out of the static load pressure signal as a result.
The come off this 26S Proteasome Structure and Function of mechanism (3) of dynamometry makes testing machine when sample turns round, and can carry out the loading of vibration pressure and static load pressure respectively and can carry out the loading of vibration pressure and static load pressure simultaneously again.Thereby be implemented on this testing machine material is carried out static load, impact, the various types of friction-wear tests of vibration.
2, variable part: comprise direct current generator (8), speed gear (9).The rotating speed of direct current generator (8) is by controllable silicon stepless speed regulation, and again through two pairs of speed gears (9) speed change, widely different rotating shaft (11) is rotated in the drive.
3, loading and sample chuck balance device: comprise pulley (10), go up widely different rotating shaft (11), rolling body (12), upper bearing sleeve (13), counterweight (14) and sample chuck (15).Sample chuck (15), upper bearing sleeve (13), go up the widely different rotating shaft (11) and the weight balanced controls by forming in advance of other part wherein, lean on counterweight (14) to give balance by pulley (10).Loading then can change counterweight (14), makes load directly be pressed in down sample (17) by the last sample (16) in the sample chuck (15) and goes up or be pressed in the abrasive material (33).In order to reduce the upper and lower mobile frictional resistance of upper bearing sleeve (13), between it and track, adopted rolling body (12) device.
Sample chuck (15) (see figure 2) is connected with last widely different rotating shaft (11) by fulcrum post (26), and can be axle center trace swing with fulcrum post (26).Setting nut (27) is enclosed within the widely different rotating shaft (11) in the mode of screw thread, and its lower end is pressed on sample chuck (15) upper surface by elastomeric pad (25).Adjust slightly tapering of nut (27) lower end endoporus, can swing flexibly to guarantee sample chuck (15).Last sample (16) is installed in the sample chuck (15), adjust height by set screw (28) after, fixing with housing screw (29).Before beginning test, can two last samples (16) be contacted equably with following sample (17) or with abrasive material (33) by set screw (28).In process of the test, go up sample (16) possibility wear extent difference for two, at this moment by elastomeric pad (25), sample chuck (15) can be the adjusting that fulcrum carries out trace with fulcrum post (26) automatically, guarantees that going up sample (16) for two keeps in touch with following sample (17).The elastic force of setting nut (27) scalable elastomeric pad (25).
4, following widely different rotating disk part: comprise food tray (7) or abrasive material groove (31), widely different rotating shaft (6) down, bearing holder (housing, cover) (5), a bearing holder (housing, cover) (4), following sample (17) or abrasive material (33).Widely different rotating disk part mainly is to transfer vibrations to the following sample (17) in the food tray (7) or be delivered to the abrasive material (33) that is contained in the abrasive material groove (31) by following widely different rotating shaft (6), make down sample (17) or abrasive material (33) with the motion of last sample (16) in, produce frictional resistance moment, by friction measurement device output friction force signal.
Only when carrying out abrasive grain wear test, food tray (7), following sample (17) are replaced to the abrasive material groove (31) that rubber sheet gasket (32) is housed, on rubber sheet gasket, adorn abrasive material (33) (see figure 4).
5, electric control system (30) and proving installation: comprise and measure pressure sensor (2), friction measurement device (18) and electrical control gear (30).Electrical control gear (30) is connected with testing machine from outside.
This testing machine is in concrete operations:
(1) when vibrator (1) when not working, can carry out the static load friction-wear test;
(2) be fixed on a corresponding height position when upper bearing sleeve (13), axle (11) widely different commentaries on classics can be carried out impact wear test when being excited at the same time device (1) work.
(3) when whole running work, can carry out the vibration friction abrasion test;
(4) replace food tray (7) and following sample (17) with the abrasive material groove (31) that rubber sheet gasket (32) is housed, on rubber sheet gasket, adorn abrasive material (33), can carry out the abrasive grain wear test in above-mentioned (1), (2), (3) content of the test.
The contact situation of upper and lower sample is directly to influence one of reproducible principal element of test figure, is subjected to very big attention always.General friction wear testing machine adopts spherical pair joint specimen holder more now, convex-concave cooperates the sphere anufacturability relatively poor, and quality of fit requires height, because of the sphere pressurized so when actual motion, it is dumb to rotate adjusting, does not often reach self-regulating purpose.Sample chuck of the present invention (15) adopts stressed by fulcrum post (26), relies on elastomeric pad (25) automatically sample chuck (15) to be regulated, and keeps the contact of upper and lower sample (16), (17).
When the material abrasive wear behavior of this testing machine under making the vibration operating mode tested, in abrasive material groove (31), utilize the energy absorption of rubber sheet gasket (32) when impacting, make the test function simulate the low stress abrasive wear state that under edaphic condition, produces preferably, can control the contact pressure between abrasive material (33) and sample effectively.And the method for existing control abrasive thickness is to adjust by rule of thumb fully, and is not only time-consuming, and can not simulate the abrasive wear state that produces under the edaphic condition sometimes.
It is vibration source that electromagnetic exciter is adopted in this testing machine design, therefore, it than the vibration source of electricity, hydraulic pressure, machinery generation have compact conformation, have a wide reach, reliable, sensitive advantage easy to adjust.
Claims (4)
1, a kind of vibration friction abrasion testing machine, formed by vibrator, variable part, loading and sample chuck balance device, down widely different rotating disk part, proving installation and electrical control, it is characterized in that vibrator is connected with food tray (7) or abrasive material groove (31) by the dynamometry mechanism (3) that comes off, the sample chuck is connected with last widely different rotating shaft (11) by fulcrum post, its vibration pressure and static load pressure can be loaded simultaneously and can load respectively.
2, according to the described vibration friction abrasion testing machine of claim 1, it is characterized in that the come off following overcoat (20) of mechanism (3) of dynamometry is enclosed within on the exciter shaft core (21) on the vibrator boss (19), sliding screw (22) is contained in the sliding sleeve (23), the flange lower surface of sliding sleeve (23) contacts with sensor (2), setting nut (24) control exciter shaft core (21) contacts or disengaging with sliding screw (22), and setting nut (24) contacts with sensor (2) by sliding sleeve (23) or breaks away from.
3, according to the described vibration friction abrasion testing machine of claim 1, it is characterized in that sample chuck (15) is connected with last widely different rotating shaft (11) by fulcrum post (26), and can be axle center trace swing with fulcrum post (26), endoporus slightly taper and be enclosed within the widely different rotating shaft (11) in setting nut (27) lower end in the mode of screw thread, its lower end is pressed on sample chuck (15) upper surface by elastomeric pad (25), last sample (16) is installed in the sample chuck (15), adjust height with set screw (28), fixing with housing screw (29).
4, according to the described vibration friction abrasion testing machine of claim 1, it is characterized in that rubber sheet gasket (32) is housed in the abrasive material groove (31), abrasive material (33) is contained on the rubber sheet gasket (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86108220.6A CN1004516B (en) | 1986-12-06 | 1986-12-06 | Vibration friction abrasion testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86108220.6A CN1004516B (en) | 1986-12-06 | 1986-12-06 | Vibration friction abrasion testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86108220A CN86108220A (en) | 1987-06-17 |
| CN1004516B true CN1004516B (en) | 1989-06-14 |
Family
ID=4803839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86108220.6A Expired CN1004516B (en) | 1986-12-06 | 1986-12-06 | Vibration friction abrasion testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1004516B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100397063C (en) * | 2005-08-18 | 2008-06-25 | 中南大学 | Dynamic and static combined rock loading experiment method and apparatus |
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|---|---|---|---|---|
| CN103063530B (en) * | 2012-08-16 | 2015-03-25 | 南京航空航天大学 | Micro-movement friction and abrasion testing machine |
| CN103163036B (en) * | 2013-03-21 | 2014-12-31 | 上海应用技术学院 | Vibration and abrasion test bench |
| ITMI20131669A1 (en) * | 2013-10-09 | 2015-04-10 | Freni Brembo Spa | DEVICE AND METHOD OF CHARACTERIZATION OF THE ELASTIC PROPERTIES OF A FRICTION MATERIAL |
| CN105628605B (en) * | 2016-03-14 | 2018-04-24 | 哈尔滨工程大学 | A kind of analysis method of the experimental rig and vibration of shift fork ring for studying synchronizer and the abrasion of sliding block random vibration to mechanism wear coefficient |
| CN106353211B (en) * | 2016-08-12 | 2019-05-14 | 国网新疆电力公司电力科学研究院 | Electric armour clamp abrasion tester |
| CN106644750B (en) * | 2016-12-07 | 2019-07-05 | 凌贤长 | Open system Thawing soil sound triaxial tester |
| CN108204928B (en) * | 2018-01-10 | 2020-08-18 | 中机试验装备股份有限公司 | Impact wear testing machine |
| CN108507895B (en) * | 2018-06-13 | 2024-03-19 | 吉林大学 | Vertical multifunctional friction and wear test machine |
| CN108627333A (en) * | 2018-07-19 | 2018-10-09 | 中国人民解放军陆军装甲兵学院 | Fatigue test electromagnetic exciting loading device |
| CN114275187B (en) * | 2021-04-26 | 2024-02-13 | 北京强度环境研究所 | Vibration-static force-excitation three-combination test device |
| CN114324039A (en) * | 2021-12-04 | 2022-04-12 | 吉林大学 | Bucket tooth rapid wear testing machine |
-
1986
- 1986-12-06 CN CN86108220.6A patent/CN1004516B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100397063C (en) * | 2005-08-18 | 2008-06-25 | 中南大学 | Dynamic and static combined rock loading experiment method and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN86108220A (en) | 1987-06-17 |
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