CN107860668A - Coating impact fatigue experimental provision - Google Patents
Coating impact fatigue experimental provision Download PDFInfo
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- CN107860668A CN107860668A CN201711071060.2A CN201711071060A CN107860668A CN 107860668 A CN107860668 A CN 107860668A CN 201711071060 A CN201711071060 A CN 201711071060A CN 107860668 A CN107860668 A CN 107860668A
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- lever
- coating
- wedge
- experimental provision
- impact fatigue
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/34—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to a kind of coating impact fatigue experimental provision, including base, it is characterized in that：Rotating disk is connected on the floor installation device of rotation driving and lever, the output shaft of device of rotation driving, multiple shift forks are arranged on rotating disk；Connecting screw and sleeve nut on the right-hand member installation counterweight of lever, the lever of counterweight bottom, sleeve nut bottom set sintered carbide ball, coating sample block fixture are set below sintered carbide ball；The wedge in its intermediate part setting, the inclined-plane on upper wedge lower end inclined-plane and lower wedge upper end coordinate；Electromagnet is installed on the right side of the lower wedge, attracts lower wedge to move right when electromagnet is powered；Infrared sensing switch and lower infrared sensing switch are installed on the base of the lever right-hand member；The installation guide rod on the base, guide rod are slidably matched with lower wedge, and elastic component is connected between guide bar support and lower wedge.Simple structure of the present invention, it is easy to use, the impact fatigue behavior test of coating sample can be realized.
Description
Technical field
The present invention relates to a kind of experimental provision of fatigue behaviour, especially a kind of coating impact fatigue experimental provision.
Background technology
Band coating machine components under arms during in addition to the common damage such as being worn and corroding, also often by
To the percussion of different-energy.Prolonged percussion can make coating that fatigue cracking occur and come off when coating is ground
When damage and (or) corrosion synergy, it will further speed up the failure process of coating.Therefore, the shock resistance carried out to coating is tired
Coating impact failure process spread research of the assessment of labor performance particularly under different temperatures or corrosive medium effect has very much
It is necessary.Patent " a kind of falling sphere experimental provision that can be temperature automatically controlled "（201410776451.4）Surveyed using the method for ball falling impact
The impulse fatigue resistance energy of coating is tried, the device falls caused kinetic energy to impact coating sample block using steel ball from certain altitude.
The impact of different-energy is realized, then needs to change the height of steel ball drop, corresponding height of table and catheter length will
Change, it is inconvenient for operation.Due to the limitation of experimental provision height, it is difficult to realize the impact of big energy.Further, since falling sphere is led
The internal diameter of pipe is bigger than the diameter of steel ball used, so when steel ball flies out from conduit mouth and impacted on coating sample block, it is difficult to impact
To same position, so as to influence the assessment to coating impulse fatigue resistance energy.Therefore, it is necessary to design more simple and reliable coating punching
Fatigue test device is hit, coating same position is accurately impacted with realizing, so as to obtain the impulse fatigue resistance energy of coating.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, there is provided a kind of coating impact fatigue experimental provision,
Simple structure, easy to use, reliable in action, the impact fatigue behavior test of coating sample can be realized.
According to technical scheme provided by the invention, the coating impact fatigue experimental provision, including base, it is characterized in that：
The rotational support lever on the floor installation rotary shaft rack, rotary shaft rack, on the base of lever left end installation rotate driving dress
Put, connect rotating disk on the power output shaft of device of rotation driving, circumferentially multiple shift forks on rotating disk, in rotating disk rotation process
Shift fork is driven to be contacted successively with the left end of lever；Counterweight is installed in the right-hand member of lever, spiral shell is connected on the lever of counterweight bottom
Bar, screw rod lower end branch sleeve nut, sintered carbide ball is fixed with sleeve nut in the bottom of sleeve nut；Closed in the hard
It is provided for installing the coating sample block fixture of coating sample on base below gold goal；Set in the middle part lower end of the lever
Wedge, wedge under being installed on the base below upper wedge, the inclined-plane of upper wedge lower end and lower wedge upper end
Inclined-plane coordinates；Electromagnet is installed on the right side of the lower wedge, attracts lower wedge lateral movement to the right, electricity when electromagnet is powered
Magnet is connected by magnet control line with master controller；Switch bracket, switch branch are installed on the base of the lever right-hand member
Install infrared sensing switch and lower infrared sensing switch on frame, upper infrared sensing switch and lower infrared sensing switch respectively with always
Controller connects, for controlling the power on/off of electromagnet；The right-hand member of the lever when being rocked to the top with upper infrared induction
Switch contact, contacted when being rocked to bottom with lower infrared sensing switch；
The installation guide rod support on the base, sets guide rod on guide bar support in left-right direction, and lower wedge is along guide rod or so
Slide；Elastic component is connected between the guide bar support and lower wedge.
Further, spacing lever is set in the left end of the guide rod.
Further, the elastic component uses spring.
Further, the device of rotation driving uses buncher.
Further, the buncher is connected by buncher control line with master controller.
Further, by rotating shaft support lever on the rotary shaft rack, the fulcrum as lever.
Further, the shift fork is 4.
Further, the counterweight is fixed on the right-hand member of lever by counterweight locking nut.
Further, the sintered carbide ball is fixed on screw rod by sleeve nut, and the sleeve nut is further through locking
Nut is fastened on the lower end of screw rod, prevents impact process middle sleeve nut loosening.
Further, the coating sample, which is placed on, is capable of in the box of injected media, and coating sample is internally embedded use
In the thermocouple of measurement temperature.
The present invention has advantages below：
（1）Coating impact fatigue experimental provision of the present invention is simple in construction, easy to use；
（2）The impact fatigue behavior test of coating sample under normal temperature, low temperature, high temperature and corrosive conditions can be realized；
（3）The accurate impact that certain frequency is pressed to coating sample same position can be realized, and is avoided that due to caused by bounce-back two
Secondary Shocks；
（4）It can realize that coating is tested in the impact fatigue behavior of different-energy by changing counterbalance mass.
Brief description of the drawings
Fig. 1 is the structural representation of coating impact fatigue experimental provision of the present invention.
Fig. 2 is the structural representation of the anti-bounce-back secondary pulse device.
Fig. 3 is sintered carbide ball fixed form schematic diagram.
Description of reference numerals：1- bases, 2- shift forks, 3- rotating disks, 4- levers, 5- bunchers, 6- rotating shafts, 7- rotating shaft branch
Wedge under frame, 8- guide bar supports, 9- guide rods, 10- spacing levers, 11- springs, 12-, the upper wedges of 13-, 14- electromagnet,
15- magnet controls line, 16- coating sample blocks fixture, 17- counterweights, 18- counterweights locking nut, 19- sintered carbide balls, 20- sleeves
Nut, 21- coating samples, 22- thermocouples, 23- locking nuts, 24- screw rods, 25- boxes, 26- bunchers control line, 27-
Lower infrared sensing switch, the upper infrared sensing switch of 28-, 29- switch brackets, 30- master controllers.
Embodiment
With reference to specific accompanying drawing, the invention will be further described.
As shown in Figure 1-Figure 3, coating impact fatigue experimental provision of the present invention includes base 1, the installation turn on base 1
Bracing strut 7, the support lever 4 of rotating shaft 6 on rotary shaft rack 7, buncher 5, buncher 5 are installed on the base 1 of the left end of lever 4
Power output shaft on connect rotating disk 3, circumferentially 4 shift forks 2 on rotating disk 3,4 shift forks 2 can in the rotation process of rotating disk 3
After the segment distance of left end one for depressing lever successively, and depart from lever so that lever right-hand member rises and free-falling, so as to realize
Repeated stock of the sintered carbide ball to coating sample block being fixed on below lever right-hand member；Locked in the right-hand member of lever 4 by counterweight
Nut 18 fixes counterweight 17, and the connecting screw 24 on the lever 4 of the bottom of counterweight 17, the lower end of screw rod 24 will by sleeve nut 20
Sintered carbide ball 19 is fixed on the bottom of screw rod 24；And further sleeve nut is determined in locking by locking nut 23；In the hard
Coating sample block fixture 16 is installed on the base 1 of the lower section of alloying pellet 19, coating sample 21, the coating are set on coating sample block fixture 16
Sample 21 can be placed in box 25, corresponding medium can be injected in box 25 with realize coating sample 21 low temperature, often
Test under temperature, high temperature or corrosive medium, the thermocouple 22 being internally embedded for measurement temperature of coating sample 21；In the thick stick
The middle part lower end of bar 4 sets upper wedge 13, and the inclined-plane on the inclined-plane of the upper lower end of wedge 13 and the lower upper end of wedge 12 coordinates, under
Wedge 12 is arranged on base 1；Electromagnet 14 is installed on the right side of the lower wedge 12, electromagnet 14 is in the case of energization
The lower lateral movement to the right of wedge 12 can be attracted, electromagnet 14 is connected by magnet control line 15 with master controller 30；Described
Switch bracket 29 is installed on the base 1 of the right-hand member of lever 4, infrared sensing switch 28 and lower infrared induction are installed on switch bracket 29
Switch 27, upper infrared sensing switch 28 and lower infrared sensing switch 28 are connected to control electromagnet 14 respectively with master controller 30
Power on/off；The right-hand member of the lever 4 contacts when being rocked to the top with upper infrared sensing switch 28, when being rocked to bottom
Contacted with lower infrared sensing switch 27.
The installation guide rod support 8 on the base 1, guide rod 9, guide rod 9 and hyposphene are set in left-right direction on guide bar support 8
Shape block 12 is slidably matched for being oriented to lower wedge 12；Bullet is connected between the guide bar support 8 and lower wedge 12
Spring 11, spring 11 are used to be resetted lower wedge 12, spacing lever 10 are set on guide rod 9, in lower wedge 12
Reset rear support lever 4, prevent steel pipe right end portion due to hit rebound after free-falling drive sintered carbide ball 19 to coating
Sample 21 causes secondary pulse.
The buncher 5 is connected by buncher control line 26 with master controller 30, and tune is controlled by master controller 30
The rotating speed of speed motor 5.
The course of work of coating impact fatigue experimental provision of the present invention：Four on rotating disk 3 are driven by buncher 5
Shift fork 2 rotates, and when shift fork 2 rotates clockwise the power arm end for the lever 4 that pressure is arranged on rotary shaft rack 7, lever 4 is right
End（Resistance arm）Rise.When shift fork 2, which is rotated further, departs from 4 left end of lever（The right-hand member of lever 4 rises to peak）, the right-hand member of lever 4
Touch panel touch infrared sensing switch 28 and electromagnet 14 is powered, attract lower wedge 12 to move to right rapidly so that the right-hand member of lever 4
Free-falling campaign is done under the Action of Gravity Field of counterweight 17 drives sintered carbide ball 19 below to strike coating sample 21
Surface.When sintered carbide ball 19 impacts 21 surface of coating sample, the right-hand member of lever 4 is in extreme lower position, the plate of its low order end
Touching lower infrared sensing switch 27 powers off electromagnet 14, loses pulling force of the lower wedge 12 in spring 11 of the attraction of electromagnet 14
Effect is lower to move to the position support lever 4 of spacing lever 10 to the left rapidly, avoids sintered carbide ball 19 due to caused by bounce-back two
Secondary shock.When second shift fork 2 depresses the high order end of lever 4 on the drive rotating disk 3 of buncher 5, that is, repeat to act for the first time,
Again shock of the sintered carbide ball 19 to coating sample 21 is realized, and can hit and lead same position.Wherein, buncher 5
Every revolution, coating sample 21, therefore, can be by setting total revolution of buncher 5, to set coating by four shocks
The number of shocks that sample 21 is subject to, it is automatically performed the impact fatigue experiment of setting number.In addition, whole coating sample 21 can be put
In in box 25, therefore, liquid nitrogen can be injected into box 25, realize low-temperature impact；It can also be corroded by oil or other bands
The liquid medium of property is placed in box 25, and the liquid medium in electrified regulation box 25, the medium after heating can heat coating
Sample 21, can also corrosion resistant coating, realize coating sample 21 hot or corrosive medium and meanwhile act under impact fatigue behavior
Test.Wherein, the temperature control of coating sample 21, controlled by the thermocouple measurement inside embedded coating sample 21 and by temperature controller
System.
Claims (10)
1. a kind of coating impact fatigue experimental provision, including base（1）, it is characterized in that：In the base（1）Rotary shaft rack is installed
（7）, rotary shaft rack（7）Upper rotational support lever（4）, lever（4）The base of left end（1）Upper installation device of rotation driving, rotate
Rotating disk is connected on the power output shaft of drive device（3）, rotating disk（3）On circumferentially multiple shift forks（2）, rotating disk（3）Rotate
During drive shift fork（2）Successively with lever（4）Left end contact；In lever（4）Right-hand member installation counterweight（17）, positioned at counterweight
（17）The lever of bottom（4）Upper connecting screw（24）, screw rod（24）Lower end branch sleeve nut（20）, in sleeve nut（20）'s
Sintered carbide ball is fixed in bottom with sleeve nut（19）；In the sintered carbide ball（19）The base of lower section（1）On be provided for
Coating sample is installed（21）Coating sample block fixture（16）；In the lever（4）Middle part lower end upper wedge is set（13）,
Upper wedge（13）The base of lower section（1）Wedge under upper installation（12）, upper wedge（13）The inclined-plane of lower end and lower wedge
（12）The inclined-plane of upper end coordinates；In the lower wedge（12）Right side installation electromagnet（14）, electromagnet（14）Inhaled during energization
Draw lower wedge（12）Lateral movement to the right, electromagnet（14）Pass through magnet control line（15）With master controller（30）Connection；
The lever（4）The base of right-hand member（1）Upper installation switch bracket（29）, switch bracket（29）On install infrared sensing switch
（28）With lower infrared sensing switch（27）, upper infrared sensing switch（27）With lower infrared sensing switch（28）Respectively with master controller
（30）Connection, for controlling electromagnet（14）Power on/off；The lever（4）Right-hand member when being rocked to the top with it is upper infrared
Inductive switch（28）Contact, when being rocked to bottom with lower infrared sensing switch（27）Contact；
In the base（1）Upper installation guide rod support（8）, guide bar support（8）On guide rod is set in left-right direction（9）, lower wedge shape
Block（12）Along guide rod（9）Horizontally slip；In the guide bar support（8）With lower wedge（12）Between connect elastic component.
2. coating impact fatigue experimental provision as claimed in claim 1, it is characterized in that：In the guide rod（9）Left end set
Spacing lever（10）.
3. coating impact fatigue experimental provision as claimed in claim 1, it is characterized in that：The elastic component uses spring（11）.
4. coating impact fatigue experimental provision as claimed in claim 1, it is characterized in that：The device of rotation driving uses speed governing
Motor（5）.
5. coating impact fatigue experimental provision as claimed in claim 4, it is characterized in that：The buncher（5）Pass through speed governing
Motor control line（26）With master controller（30）Connection.
6. coating impact fatigue experimental provision as claimed in claim 1, it is characterized in that：The rotary shaft rack（7）Upper pass through turns
Axle（6）Support lever（4）, as lever（4）Fulcrum.
7. coating impact fatigue experimental provision as claimed in claim 1, it is characterized in that：The shift fork（2）For 4.
8. coating impact fatigue experimental provision as claimed in claim 1, it is characterized in that：The counterweight（17）Locked by counterweight
Nut（18）It is fixed on lever（4）Right-hand member.
9. coating impact fatigue experimental provision as claimed in claim 1, it is characterized in that：The sintered carbide ball is by sleeve nut
（20）It is fixed on screw rod（24）On, the sleeve nut（20）Further through locking nut（23）It is fastened on screw rod（24）Lower end.
10. coating impact fatigue experimental provision as claimed in claim 1, it is characterized in that：The coating sample（21）It is placed on
It is capable of the box of injected media（25）In, coating sample（21）The thermocouple being internally embedded for measurement temperature（22）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711071060.2A CN107860668B (en) | 2017-11-03 | 2017-11-03 | Coating impact fatigue experimental device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711071060.2A CN107860668B (en) | 2017-11-03 | 2017-11-03 | Coating impact fatigue experimental device |
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| Publication Number | Publication Date |
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| CN107860668A true CN107860668A (en) | 2018-03-30 |
| CN107860668B CN107860668B (en) | 2019-12-10 |
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| CN201711071060.2A Active CN107860668B (en) | 2017-11-03 | 2017-11-03 | Coating impact fatigue experimental device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459379A (en) * | 2018-12-24 | 2019-03-12 | 中国包装科研测试中心 | A kind of aluminum cream inner tube coating device for detecting performance and method |
| CN109813651A (en) * | 2019-03-21 | 2019-05-28 | 无锡市福莱达石油机械有限公司 | A kind of experimental machine for testing coating impact fatigue behavior |
| CN110608960A (en) * | 2019-09-05 | 2019-12-24 | 北京金辰西维科安全印务有限公司 | Testing device and testing method |
| CN112697576A (en) * | 2020-12-31 | 2021-04-23 | 华南理工大学 | Material surface cyclic impact fatigue test device and test method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459379A (en) * | 2018-12-24 | 2019-03-12 | 中国包装科研测试中心 | A kind of aluminum cream inner tube coating device for detecting performance and method |
| CN109813651A (en) * | 2019-03-21 | 2019-05-28 | 无锡市福莱达石油机械有限公司 | A kind of experimental machine for testing coating impact fatigue behavior |
| CN109813651B (en) * | 2019-03-21 | 2023-09-26 | 无锡市福莱达石油机械有限公司 | Experimental machine for testing impact fatigue performance of coating |
| CN110608960A (en) * | 2019-09-05 | 2019-12-24 | 北京金辰西维科安全印务有限公司 | Testing device and testing method |
| CN112697576A (en) * | 2020-12-31 | 2021-04-23 | 华南理工大学 | Material surface cyclic impact fatigue test device and test method |
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| Publication number | Publication date |
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| CN107860668B (en) | 2019-12-10 |
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