CN203643273U - Cam type in-situ three-point bending type fatigue mechanics performance testing platform - Google Patents
Cam type in-situ three-point bending type fatigue mechanics performance testing platform Download PDFInfo
- Publication number
- CN203643273U CN203643273U CN201320850716.1U CN201320850716U CN203643273U CN 203643273 U CN203643273 U CN 203643273U CN 201320850716 U CN201320850716 U CN 201320850716U CN 203643273 U CN203643273 U CN 203643273U
- Authority
- CN
- China
- Prior art keywords
- cam
- fork
- screw
- worm
- point bending
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 41
- 238000013001 point bending Methods 0.000 title claims abstract description 26
- 238000011065 in-situ storage Methods 0.000 title abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000013519 translation Methods 0.000 claims abstract description 12
- 229910003460 diamond Inorganic materials 0.000 claims description 20
- 239000010432 diamond Substances 0.000 claims description 20
- 230000000694 effects Effects 0.000 claims description 12
- 238000001514 detection method Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 16
- 238000005452 bending Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
Abstract
The utility model relates to a cam type in-situ three-point bending type fatigue mechanics performance testing platform, which belongs to the field of precise instruments. The testing platform mainly comprises a precise driving loading unit and a manual adjusting unit, wherein the precise loading unit comprises a power component, a worm gear transmission pair, and a transmission and execution component; the manual adjusting unit comprises a pressure head adjusting component and a signal detection component; the precise loading unit is formed by connecting a brushless direct current servo motor and a worm gear transmission pair mechanism; an actuating cam is contacted with a roller; the roller is connected with a swinging rod through a bolt; a connecting plate connected with the swinging rod is connected with two support heads; the manual adjusting unit is fastened on the connecting plate through a manual translation platform for achieve rough position adjustment on a pressure head through the connecting plate; a precise force sensor is arranged between the connecting plate and the pressure head. The testing platform has the advantages that the size is small, the structure is compact and the transmission is simple. The testing platform can achieve fatigue loading under a three-point bending mode on a transmission chain by using a novel cam transmission mechanism, with high practicability.
Description
Technical field
The utility model relates to field of precision instruments, particularly in-situ mechanical field tests, the cam-type original position three-point bending type fatigue mechanics Testing Platform that espespecially a kind of and traditional kind of drive is different.By integrated with the microscopic imaging instrument such as scanning electron microscope, metaloscope, this platform can realize microdeformation, the crackle of sample in the testing fatigue process under three-point bending pattern generation, grow up, and extensions path and the fatigue damage etc. of crackle are implemented in-situ observation; Can realize collection, conversion and control to load signal, mechanical characteristic with a kind of comparatively novel mode Accurate Measurement sample under micro-nano-scale, carry out the testing fatigue of sample under three-point bending pattern, provide method of testing for disclosing fatigue damage and the fracture mechanism of material under micro-nano-scale.
Background technology
Material or member are being subject to repetition or alternate load to do the used time, although the suffered load amplitude of material or member is much smaller than its tensile strength or yield strength, even be less than elastic load, but through distortion accumulation repeatedly, rupture failure finally occur normally due to due to fatigue load.And along with MEMS (micro electro mechanical system), ultraprecise machinery and manufacture thereof etc. are small, the fast development of accurate subject, the requirement that material Micro Mechanical Properties in-situ testing technique is endowed is also more and more higher, wish to disclose by in-situ mechanical means of testing the rule of material deformation damage under extraneous load, find more novel phenomenon and rule.So-called in-situ mechanical method of testing refers under micro-/ nano yardstick carries out in the process of Mechanics Performance Testing material for test, microdeformation material under multiple load being occurred by the instrument such as scanning tunnel microscope, atomic force microscope, a kind of mechanical measuring and calculation method that omnidistance dynamic monitoring is carried out in damage.Traditional micro-charger cannot detect or problem that accuracy of detection is not high detecting to exist aspect loading force, or structure of the detecting device complexity, cost are higher.
At present, the testing machine for mechanical properties of having researched and developed both at home and abroad, all that volume is excessive mostly, expensive, also there is no the device of integrated flexure and testing fatigue, material single-point load load successively and multi-load in the mechanical property that shows of loading be different, therefore can carry out deep research to the material Micro Mechanical Properties under multi-load effect by this test platform.
Summary of the invention
The purpose of this utility model is to provide a kind of cam-type original position three-point bending type fatigue mechanics Testing Platform, has solved that somewhat expensive, volume that current crooked test technology exists are large, driving-chain is complicated, the problem such as the low and poor compatibility of Heavy Weight, measuring accuracy.The utlity model has the features such as volume is little, compact conformation, lightweight, measuring accuracy is high, available content measurement is abundant.Can be in carrying out the test of original position three-point bending, in conjunction with related software algorithm, automatic Fitting generates the stress-strain diagram under bending load effect, can obtain the important mechanics parameter such as bending modulus, yield limit and fracture strength of material; Also can carry out three-point bending loading and unloading to material test specimen by repeated multiple times, reflect to a certain extent the anti-fatigue performance of sample.The utility model provides a kind of new test platform, can implement the fatigue mechanics performance test under trans-scale in-situ three-point bending pattern to the above three-dimensional test specimen of characteristic dimension grade, coordinate microdeformation, damage and the fracture process of the micro-imaging equipment such as electron microscope material to material to implement in-situ observation, to disclose mechanical characteristic and the damage and failure mechanism of material under micro-nano-scale.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions:
Cam-type original position three-point bending type fatigue mechanics Testing Platform, comprise accurate working cell and manual adjustment unit two parts of loading, the described accurate working cell structure that loads comprises Power Component, Worm Wheel System pair, transmission and executive module, and described manual adjustment unit comprises pressure head adjustment assembly and input assembly;
Described accurate Power Component, transmission and the executive module that loads working cell is: brushless DC servomotor 30 is arranged on base plate 31 by motor supporting base 5 is fastening, described brushless DC servomotor 30 axles are connected by screw fastening with worm screw 4, and worm gear 6 forms Worm Wheel System pair with worm screw 4; Both sides disc cams I, II 2,7 are installed on worm-wheel shaft 3 by interference fit, and this worm-wheel shaft 3 by bearings in cam chair I, II 1,8, cam chair I, II 1,8 are fastened on base plate 31 by sunk screw; Cam I, II 2,7 respectively with roller I, II 9,28 smooth contacts, fork I, II 27,11, roller I, II 9,28 are connected with interference fit by gap with pin rod respectively, fork I, II 27,11 inner sides are connected with web joint I, II 15,26 by link screw respectively, web joint I, II 15,26 and supporting member I, II 16,25 is fastening by trip bolt, due to web joint I, II 15,26 apart from 9,284 times of roller I, II to fork tail end, can realize the effect of 4 times of decelerations and reinforcement; Standard specimen 19 use AB are adhesively fixed in supporting member I, II 16,25.Supporting member I, II 16,25 can be in two side rails I, II 24,17 interior slips, and two side rails I, II 24,17 play the effect of guiding, guarantee that supporting member exports accurate straight-line displacement.In order to guarantee that roller contacts with cam all the time, back-moving spring I, II 12,29 are equipped with in fork I, II 27,11 both sides, and the hole pin 10 being connected on base plate 31 is hooked in its lower end, and upper end hooks and is being fixed on the screw 13 of fork I, II 27,11.
Described pressure head is adjusted assembly and input assembly comprises: manual translation platform 22, diamond penetrator 20 and precision force transducer 23, and described manual translation platform 22 is fastened in back up pad 18 by hex screw, and upper end and connecting link 21 are threaded connection; Precision force transducer 23 upper ends and connecting link 21 are threaded connection, and lower end and diamond penetrator 22 are threaded connection, and diamond penetrator 20 contacts with standard specimen 19 middle parts; Before loading, can carry out the distance between coarse adjustment diamond penetrator 22 and standard specimen 19 by the adjusting screw(rod) that regulates manual translation platform 22, guarantee that diamond penetrator 22 contacts with standard specimen 19, thereby guarantee the accuracy of tired three-point bending.
Described supporting member I, a part for II 16,25 are served as slide block effect, can on guide rail, slide, guide rail I, II 24,17 and back up pad 18 are rigidly connected by screw, by guiding and the supporting to supporting member I, II 16,25 of guide rail I, II 24,17, thereby guarantee that supporting member I, II 16,25 are stressed steady, balanced in the time doing upper and lower tiring exercises.
Described disc cams I, II 2,7 are done lift and drawback movement, thereby drive both sides fork I, II 27,11 to swing up and down by roller I, II 9,28, web joint I, II 15,26 hinged in fork I, II 27,11 drive supporting member I, II 16,25 to pump, and realized the rotation of disc cams I, II 2,7 is become to pumping of supporting member I, II 16,25; Back-moving spring I, II 12,29 guaranteed that roller I, II 9,28 contact all the time with disc cams I, II 2,7, guaranteed the accurate swing of fork I, II 27,11.
Can be according to the design of disc cams I, II 2,7, utilize the method for mathematics, the rectilinear path distance that calculates supporting member I, II 16,25 is that the distance turning over cam is proportional, again according to the rotating speed of brushless DC servomotor 30, just can calculate loading stroke, and then realize the accurate loading of bending test.
In tired three-point bending test process, diamond penetrator 20 remains fixing, a two end supports I, II 16,25 pump, standard specimen 19 is implemented to three-point bending fatigue loading, design just can guarantee like this, utilizing scanning electron microscope or optical microscope whole process of the test to be carried out in the process of in-situ observation, and the middle part of standard specimen 19, be the best position that is observed, all the time within sweep of the eye favourable.
The beneficial effects of the utility model are: traditional Apparatus for Bending at low-temp of comparing, what the utility model adopted is the transmission of cam bawl driving-chain, three-point bending device in the past adopts Worm Wheel System, unidirectional three point bending test can only be realized, the testing fatigue under three-point bending pattern can not be realized.And the utility model can be by the rotation of cam, what drive supporting member pumps to realize the torture test under three-point bending pattern, for the material Micro Mechanical Properties disclosing under multi-load effect provides a kind of new test unit.Be used in conjunction with supporting microscope device again, can realize in-situ observation, better carry out the mechanical property research of micro-nano-scale category.Compared with conventional art, the utlity model has volume little, compact conformation, lightweight, rigidity is high, driving-chain is simple, the features such as available content measurement is abundant, have wide range of applications, can carry out trans-scale in-situ mechanical test to macroscopical test specimen of various materials, by the synchronous detection of load signal, in conjunction with related software algorithm, can generate the stress-strain diagram under bending load effect by automatic Fitting, and can realize continuously, the multiple load modes such as intermittence, to material and goods thereof bending load under microdeformation carry out dynamic online observation, to disclose mechanical behavior and the damage and failure mechanism of material under micro-nano-scale, practical.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, and illustrative example of the present utility model and explanation thereof are used for explaining the utility model, do not form improper restriction of the present utility model.
Fig. 1 is perspective view of the present utility model;
Fig. 2 is another perspective view of the present utility model;
Fig. 3 is that master of the present utility model looks schematic diagram;
Fig. 4 is schematic rear view of the present utility model;
Fig. 5 is the schematic top plan view of the micro-rotation of the utility model;
Fig. 6 is pressure angle Computing Principle.
1, cam chair I; 2, disc cams I; 3, worm-wheel shaft; 4, worm screw; 5, motor supporting base; 6, worm gear; 7, disc cams II; 8, cam chair II; 9, roller II; 10, hole pin; 11, fork II; 12, back-moving spring II; 13, screw II; 14, fork supporting seat I; 15, web joint II; 16, supporting member II; 17, guide rail II; 18, back up pad; 19, standard specimen; 20, diamond penetrator; 21, connecting link; 22, manual translation platform; 23, power sensor; 24, guide rail I; 25, supporting member I; 26, web joint I; 27, fork I; 28, roller I; 29, spring I; 30, brushless DC servomotor; 31, base plate; 32 fork supporting seat II.
Embodiment
Further illustrate detailed content of the present utility model and embodiment thereof below in conjunction with accompanying drawing.
Referring to shown in Fig. 1 to Fig. 5, cam-type original position three-point bending type fatigue mechanics Testing Platform of the present utility model, comprise accurate working cell and manual adjustment unit two parts of loading, the described accurate working cell structure that loads comprises Power Component, Worm Wheel System pair, transmission and executive module, and described manual adjustment unit comprises pressure head adjustment assembly and input assembly;
Power Component, transmission and the executive module of described loading worktable are: brushless DC servomotor 30 is connected with worm screw 4, worm gear 6 forms gear pair with worm screw 4, further worm-wheel shaft 3 is rigidly connected with both sides disc cams I, II 2,7, and cam I, II 2,7 contact with roller I, II 9,28, fork I, II 27,11 are connected with roller I, II 9,28, be connected with supporting member I, II 16,25 by web joint I, II 15,26, standard specimen 19 use AB are adhesively fixed in supporting member I, II 16,25; Wherein, brushless DC servomotor 30 is fastenedly connected with motor supporting base 5, and this motor supporting base 5 is connected by sunk screw with base plate 32; This worm-wheel shaft 3 is connected with base plate 32 by cam chair 1,8 with tight bearing; Both sides disc cams I, II 2,7 are rotated, and contact with roller I, II 9,28, and roller I, II 9,28 are connected with fork I, II 27,11 use hex bolts; Web joint I, II 15,26 are hinged in fork I, II 27,11, and the supporting member I of both sides, II 16,25 and web joint 15,26 are connected by screw, and do guiding up and down being fixed in two side rails I in back up pad 18, II 24,17; The lower end of back-moving spring I, II 12,29 is to be fixed on base plate 32 by pin with holes 10.Upper end hooks and is being fixed on the screw 13 of fork I, II 27,11.
Described diamond penetrator is adjusted assembly and input assembly is: manual translation platform 22, diamond penetrator 20 and precision force transducer 23; Manual translation platform 22 is fastened in back up pad 18 by hex screw, and upper end is connected with connecting link 21; Precision force transducer 23 one end and connecting link 21 are threaded connection, and the other end and diamond penetrator 22 are threaded connection, and pass through fastening nuts; Diamond penetrator 20 acts on standard specimen 19 middle parts.
The supporting member I being connected by screw with web joint 15,26, a part for II 16,25 are served as slide block effect, on guide rail, slide, guide rail I, II 24,17 and back up pad 18 are rigidly connected, use guiding, the supporting role of guide rail I, II 24,17, stressed steady, balanced while guaranteeing supporting member I, II 16,25 motion.
Disc cams I, II 2,7 drive both sides fork I, II 27,11 to swing by roller I, II 9,28, web joint I, II 15,26 hinged in fork I, II 27,11 drive supporting member I, II 16,25, thereby the rotation of disc cams I, II 2,7 are become to the up and down reciprocatingly rectilinear motion of supporting member I, II 16,25; Supporting member I, II 16,25 move downward be by back-moving spring I, II 12,29 tighten up realize.
Can be according to the design of disc cams I, II 2,7, utilize the method for mathematics, the rectilinear path distance that calculates supporting member I, II 16,25 is that the distance turning over cam is proportional, again according to the rotating speed of brushless DC servomotor 30, just can calculate loading stroke, and then realize the accurate loading of bending test.
In three point bending test process, diamond penetrator 20 keeps fixing, and a two end supports I, 16,25 pairs of standard specimens 19 of II are implemented three-point bending and loaded, and design just can guarantee like this, and observation is convenient in the adjusting of height of specimen in loading procedure.
Referring to Fig. 1 to Fig. 5, the utility model is made up of loading unit and manual adjustment unit two parts.Wherein, loading unit structure comprises Power Component, Worm Wheel System pair, transmission and executive module; Manual adjustment unit is adjusted assembly, input assembly etc. by pressure head and is formed.
Power Component, transmission and the executive module of described loading unit is to provide power output by brushless servomotor 30, brushless DC servomotor 30 is connected with worm screw 4, worm gear 6 forms Worm Wheel System pair with worm screw 4, because it has larger ratio of gear, brushless DC servomotor 30 often turns an angle, the rotation angle of corresponding worm-wheel shaft 3 can reach very little level, to realize small, accurate calibration.Worm-wheel shaft 3 is rigidly connected with both sides disc cams I, II 2,7, further power is delivered in both sides disc cams I, II 2,7, be transformed into the rotation of cam, and disc cams I, II 2,7 contact with roller I, II 9,28, fork I, II 27,11 are connected with roller I, II 9,28, be connected with supporting member I, II 16,25 by web joint I, II 15,26, standard specimen 19 use AB are adhesively fixed in supporting member I, II 16,25; Under two side rails I, II 24,17 guide effects, drive the accurate rectilinear motion of supporting member I, II 16,25 output vertical directions.Wherein, brushless DC servomotor 30 is fastenedly connected by motor trip bolt and motor supporting base 5, and this motor supporting base 5 is connected by sunk screw with base plate 32; This worm-wheel shaft 3 is arranged on cam chair 1,8 by tight bearing, is fixedly connected with base plate 32; Worm-wheel shaft 3 drives both sides disc cams I, II 2,7 to rotate, realize the rotation that the power output of motor is changed into cam, disc cams I, II 2,7 contact with roller I, II 9,28 all the time by the effect of back-moving spring I, II 12,29, guarantee accurately swinging up and down of fork, made to control accurately by the structural design of cam I, II 2,7 the loading stroke of supporting member I, II 16,25; Roller I, II 9,28 are connected with fork I, II 27,11 use bearing pins; Web joint I, II 15,26 are hinged in fork I, II 27,11, and the supporting member I of both sides, II 16,25 and web joint 15,26 are connected by screw, and do guiding up and down being fixed in two side rails I in back up pad 18, II 24,17; The lower end of back-moving spring I, II 12,29 is to be fixed on base plate 32 by pin with holes 10.Upper end hooks and is being fixed on the screw 13 of fork I, II 27,11.
Described pressure head is adjusted assembly and input assembly is: manual translation platform 22, diamond penetrator 20 and power sensor 23, manual translation platform 22 is fastened in back up pad 18 by hex screw, upper end is connected with connecting link 21, by regulating the height of manual translation platform 22, diamond penetrator 20 is adjusted to correct position; Precision force transducer 23 one end and connecting link 21 are threaded connection, the other end and diamond penetrator 22 are threaded connection, and pass through fastening nuts, the flexible direction under load is consistent with standard specimen 19 for the force direction that is subject to of power sensor 23, with the synchronism and the accuracy that guarantee that load signal detects; Diamond penetrator 20 acts on standard specimen 19 middle parts.
The supporting member I, the II 16,25 that are connected by screw with web joint 15,26, supporting member I, II 16,25 are served as slide block effect with the part that guide rail I, II 24,17 are connected, on guide rail, slide, drive whole supporting member I, II 16,25 to move up and down, guide rail I, II 24,17 and back up pad 18 are fastenedly connected, use guiding, the supporting role of guide rail I, II 24,17, stressed steady, balanced while guaranteeing supporting member I, II 16,25 motion.
Disc cams I, II 2,7 drive both sides fork I, II 27,11 to swing by roller I, II 9,28, connecting rod I, II 15,26 hinged in fork I, II 27,11 drive supporting member I, II 16,25, thereby the rotation of disc cams I, II 2,7 are become to the rectilinear motion of supporting member I, II 16,25; Supporting member I, II 16,25 move downward be by back-moving spring I, II 12,29 tighten up realize.
Utilize the method for mathematics, the rectilinear path distance that calculates supporting member I, II 16,25 is that the distance turning over cam is proportional, again according to the rotating speed of brushless DC servomotor 30, just can calculate loading stroke, according to the transport characteristics of Worm Wheel System pair, drive motor 30 often turns an angle, the rotation angle of corresponding disc cams I, II 2,7 can reach very little level, drive supporting member I, II 16,25 to realize small, accurate loading step-length, and then realize the accurate loading of bending test.
In three point bending test process, diamond penetrator 20 keeps fixing, and a two end supports I, 16,25 pairs of exemplars 19 of II are implemented three-point bending and loaded, and design just can guarantee like this, and observation is convenient in the adjusting of height of specimen in loading procedure.
Can be according to the design of the design of disc cams mechanism and fork, determine centre distance L, the radius of roller of fork A, camshaft and fork axle
r b , radius of cam base-circle
r 0 , as shown in the figure, there is following formula at calculating pressure angle:
Wherein,
（2）
（3）
Again by
calculate pressure angle, referring to Fig. 6.
Calculate through programming, obtain maximum rise pressure angle in cam continuous operation process
α max=27.39 °, maximum backhaul pressure angle
α max=-28.18 °, be all less than oscillating follower rise allowable pressure angle [
α35 ° ~ 45 ° of]=() and backhaul allowable pressure angle [
α70 ° ~ 80 ° of]=(), therefore all can there is not locking phenomenon in cam in rise and backhaul process.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All any modifications that the utility model is done, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (2)
1. a cam-type original position three-point bending type fatigue mechanics Testing Platform, it is characterized in that: comprise accurate working cell and manual adjustment unit two parts of loading, the described accurate working cell structure that loads comprises Power Component, Worm Wheel System pair, transmission and executive module, and described manual adjustment unit comprises pressure head adjustment assembly and input assembly;
Described accurate Power Component, transmission and the executive module that loads working cell is: brushless DC servomotor (30) is arranged on base plate (31) by motor supporting base (5) is fastening, described brushless DC servomotor (30) axle is connected by screw fastening with worm screw (4), and worm gear (6) forms Worm Wheel System pair with worm screw (4), both sides disc cams I, II (2,7) are installed on worm-wheel shaft (3) by interference fit, and this worm-wheel shaft (3) is upper in cam chair I, II (1,8) by bearings, and cam chair I, II (1,8) are fastened on base plate (31) by sunk screw, cam I, II (2,7) respectively with roller I, the smooth contact of II (9,28), fork I, II (27,11), roller I, II (9,28) are connected with interference fit by gap with pin rod respectively, fork I, II (27,11) inner side is connected with web joint I, II (15,26) by link screw respectively, and web joint I, II (15,26) and supporting member I, that II (16,25) is passed through trip bolt is fastening, supporting member I, II (16, 25) can be in two side rails I, II (24, 17) in, slide, two side rails I, II (24, 17) play the effect of guiding, fork I, II (27, 11) back-moving spring I is equipped with in both sides, II (12, 29), the hole pin (10) being connected on base plate (31) is hooked in its lower end, upper end hooks and is being fixed on fork I, II (27, 11) on screw (13), fork I, II (27, 11) with fork supporting seat I, II (14, 32) be hinged, fork supporting seat I, II (14, 32) be fixed on base plate (31).
2. cam-type original position three-point bending type fatigue mechanics Testing Platform according to claim 1, it is characterized in that: described pressure head is adjusted assembly and input assembly comprises: manual translation platform (22), diamond penetrator (20) and precision force transducer (23), it is upper that described manual translation platform (22) is fastened on back up pad (18) by hex screw, and upper end and connecting link (21) are threaded connection; Precision force transducer (23) upper end and connecting link (21) are threaded connection, and lower end and diamond penetrator (22) are threaded connection, and diamond penetrator (20) contacts with standard specimen (19) middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320850716.1U CN203643273U (en) | 2013-12-19 | 2013-12-19 | Cam type in-situ three-point bending type fatigue mechanics performance testing platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320850716.1U CN203643273U (en) | 2013-12-19 | 2013-12-19 | Cam type in-situ three-point bending type fatigue mechanics performance testing platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203643273U true CN203643273U (en) | 2014-06-11 |
Family
ID=50874508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320850716.1U Expired - Lifetime CN203643273U (en) | 2013-12-19 | 2013-12-19 | Cam type in-situ three-point bending type fatigue mechanics performance testing platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203643273U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359769A (en) * | 2014-11-11 | 2015-02-18 | 吉林大学 | In-situ test instrument for micromechanics performances of materials under three-point and four-point bending action |
| CN104764667B (en) * | 2015-03-31 | 2017-03-15 | 中国日用五金技术开发中心 | Stainless steel kitchenware neck fatigue strength tester and its method of testing |
| CN110296903A (en) * | 2019-07-17 | 2019-10-01 | 山东省医疗器械产品质量检验中心 | Special-shaped bone plate Mechanics Performance Testing harness and test method |
| CN110375928A (en) * | 2019-08-28 | 2019-10-25 | 北京泽宇星科技有限公司 | It is a kind of for resilient sleeve air-leakage test and the head of palming |
| CN110926933A (en) * | 2019-11-29 | 2020-03-27 | 湖南工业大学 | Simple material dynamic mechanical property testing device |
| US20240035942A1 (en) * | 2016-11-09 | 2024-02-01 | Ohio State Innovation Foundation | Bending apparatus for material testing and micro-ct imaging |
-
2013
- 2013-12-19 CN CN201320850716.1U patent/CN203643273U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359769A (en) * | 2014-11-11 | 2015-02-18 | 吉林大学 | In-situ test instrument for micromechanics performances of materials under three-point and four-point bending action |
| CN104764667B (en) * | 2015-03-31 | 2017-03-15 | 中国日用五金技术开发中心 | Stainless steel kitchenware neck fatigue strength tester and its method of testing |
| US20240035942A1 (en) * | 2016-11-09 | 2024-02-01 | Ohio State Innovation Foundation | Bending apparatus for material testing and micro-ct imaging |
| CN110296903A (en) * | 2019-07-17 | 2019-10-01 | 山东省医疗器械产品质量检验中心 | Special-shaped bone plate Mechanics Performance Testing harness and test method |
| CN110375928A (en) * | 2019-08-28 | 2019-10-25 | 北京泽宇星科技有限公司 | It is a kind of for resilient sleeve air-leakage test and the head of palming |
| CN110926933A (en) * | 2019-11-29 | 2020-03-27 | 湖南工业大学 | Simple material dynamic mechanical property testing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203643273U (en) | Cam type in-situ three-point bending type fatigue mechanics performance testing platform | |
| CN202903617U (en) | In-situ three-point bending test device | |
| CN203643254U (en) | Material performance in-situ test platform based on tension/pressure, bending and fatigue compound loads | |
| CN103389183B (en) | Spacecraft quality characteristic comprehensive test board based on spherical air bearing | |
| CN101876609B (en) | Micron-nano scale in-situ nano indentation and scratching test system | |
| CN201233218Y (en) | Battery thickness measuring instrument | |
| CN203405372U (en) | Flexible hinge type mechanics performance testing platform for in-situ nanoindentation scratching materials | |
| CN109883648B (en) | Forced six-freedom-degree motion instrument | |
| CN104568740A (en) | Micro friction measurement device | |
| CN203337493U (en) | In-site indentation mechanical testing device based on pulling-and-pressing and fatigue combined load mode | |
| CN105403386A (en) | Rotor experiment table with centering adjustment and detection functions | |
| CN100387966C (en) | Wear test method of twisting jiggle of generating micro iamplitude of vibration, and testing machine | |
| CN202974240U (en) | Rudder clearance measurement device | |
| CN102519809B (en) | Material torsion testing machine | |
| CN110501125A (en) | A kind of flexible support torsion stiffness parameter Simplified Test Equipment and test method | |
| CN203479458U (en) | Fully-automatic electromagnetic balance-type small-force standard device | |
| CN201583240U (en) | Check tool for measuring eccentricity of crankshaft | |
| CN102426152B (en) | Metal-timber friction test platform | |
| CN203643278U (en) | Device for testing microscopic mechanical property of four-point bending material in situ under microscope | |
| CN204374047U (en) | A kind of micro tribology measurement mechanism | |
| CN204924606U (en) | Device is applyed to direction in space exciting force | |
| CN101241047A (en) | Portable digital display automotive suspension clearance test stand calibrating apparatus | |
| CN107009228B (en) | Bent axle follow-up grinding on-line measurement instrument | |
| CN202393660U (en) | Material torsion testing machine | |
| CN110579334B (en) | Mechanical type multipurpose ship model restoring force measuring device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |
|
| CX01 | Expiry of patent term |