CN202693429U - Material mechanical property testing platform for small sample in stretching and bending combined loading mode - Google Patents
Material mechanical property testing platform for small sample in stretching and bending combined loading mode Download PDFInfo
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- CN202693429U CN202693429U CN 201220220471 CN201220220471U CN202693429U CN 202693429 U CN202693429 U CN 202693429U CN 201220220471 CN201220220471 CN 201220220471 CN 201220220471 U CN201220220471 U CN 201220220471U CN 202693429 U CN202693429 U CN 202693429U
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Abstract
The utility model relates to a material mechanical property testing platform for a small sample in a stretching and bending combined loading mode, and belongs to the field of material mechanical property testing. The platform consists of a driving module, a stretching module, a bending module and a control detection module. The sample can be subjected to uniaxial stretching testing, and also can be subjected to material mechanical property testing in the stretching and bending combined loading mode; the stretching module and the bending module are connected through an electromagnetic clutch; and in the testing process, the loading time sequence of the bending module relative to the stretching module is controlled by controlling the power on and off of the clutch, and stretching and bending combined loads in different ratios are indirectly obtained. The platform is novel in concept and high in practicability and has a compact integral structure; and an effective research means is provided for researching the material mechanical property of the sample under the action of a stretching and bending random combined load.
Description
Technical field
The utility model relates to the material mechanical performance field tests, be particularly related to the material mechanical performance proving installation under a kind of multi-load pattern, espespecially a kind of for the small sample stretch bending compound loading type material mechanical property test platform of characteristic dimension more than centimetre-sized.
Background technology
The method of testing of traditional test material mechanical property mainly contains pulling method, compression method, torsional technique, bending method etc., and used proving installation is all larger on physical dimension, obtains the various mechanical property parameters of the material of measuring and monitoring the growth of standing timber by the standardization sample being applied corresponding load.Yet the development along with modern science and technology, people are more and more higher to the performance requirement of modern mechanical structure, for the practical application situation of physical construction in reality, the comprehensive mechanical property of physical construction under the random combine load more and more is subject to people's attention.The material performance index that uses obviously traditional testing tool to measure under independent load can't satisfy the modern mechanical manufacturing industry to the requirement of material mechanical performance.And divide from the form that realizes combined load: a kind of is by test specimen or the anchor clamps that design special shape and stack and the decoupling zero that realizes multiple loading by the Composition and separation of mechanics principle, but the relative scale of this combined load pattern various load on the test specimen of same size is changeless, wants to obtain general test result and must design a large amount of test specimen of different size specification and test; Another kind is to use a plurality of load-on modules simultaneously test specimen to be loaded, and comes the stress of simulation material in reality is met the tendency with this.If but drive with a plurality of driving elements, virtually will so that structure and the control aspect of device are more complicated, cost be increased.Therefore in conjunction with the theory of the material in situ test of extensively rising now, develop a kind of testing tool that can the analog mechanical member bears in actual applications the different proportion combined load and have very large realistic meaning.
Summary of the invention
The purpose of this utility model is to provide a kind of small sample stretch bending compound loading type material mechanical property test platform, has solved the problems referred to above that prior art exists.The utility model drives by a stepper motor, both can realize uniaxial tensile test, also can under different drawing stress states, load fast moment of flexure, moment of flexure also is the damage inefficacy mechanism of test specimen under the effect of stretch bending combined load on the impact of test specimen failure damage under the different stretch state thereby record.Its compact conformation, can test sample under the stretch bending different proportion loads the mechanical property of material, this test platform cooperates optical microscope can realize the in-situ observation of test process.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions:
Small sample stretch bending compound loading type material mechanical property test platform, comprise driver module, stretching module, crooked module and control detection module, described driver module is that stepper motor 1 is connected with two-way leading screw 27 by worm screw, worm gear 3,4, slow down driving torque is delivered on the two-way leading screw 27 through worm screw, worm gear 3,4 by stepper motor 1, described stepper motor 1 is rigidly fixed on the test platform base plate 7 by ring flange 2, worm screw 3 is socketed on the output shaft of stepper motor 1, and worm gear 4 is fixed on the axle head that stretches out of two-way leading screw 27; Guarantee the assembly properties of worm and gear with abutment sleeve 5; Under the control of electric pulse, the stepper motor output movement slows down by worm and gear speed-reduction apparatus and commutates;
Described stretching module be drive by two-way ball guide screw nat about two stretching worktable A, B30,29 midplane extrusions, stretching worktable A, B30,29 are installed in respectively on the slide block of linear rolling track A12; By the rotation of two-way leading screw 27, drive stretching worktable A, B30,29 and move at linear rolling track A12, thereby realize the stretching of sample is moved.The glidepath of described linear rolling track A12 is installed in the locating slot of base plate 7, about guaranteeing between two linear rolling track A, the B12,21 and and the depth of parallelism requirement of two-way leading screw 27; Described two-way leading screw 27 adopts 10 supportings of special-purpose leading screw supporting base, and leading screw supporting base 10 is fixed on the base plate 7 by its base 9; Two stretching worktable A, B30,29 symmetries move under the drive of two nuts, thereby guarantee the invariable property of to be seen some position, test specimen center;
Described crooked module is to drive crooked pressure head 26 by gear, tooth bar 17,22 transmission to finish the three-point bending test; Crooked module be by synchronous pulley A, B8,20 and the motion that passes over of synchronous cog belt 6 be delivered on the gear shaft 23 through the combination of electromagnetic clutch 19, gear shaft 23 driven gears 17 are converted into the traveling priority of tooth bar installing plate 14 on linear rolling track B21 through tooth bar 22 rotatablely moving, and tooth bar installing plate 14 is finished through the crooked pressure head 26 of crooked force sensor 16 drives the press-bending of test specimen is moved; The glidepath of described linear rolling track B21 is installed in the locating slot of base plate 7, guarantees the depth of parallelism requirement of two guide rails, satisfies simultaneously the verticality requirement with sample; In the situation that electromagnetic clutch 19 outages can promote by manual mode tooth bar installing plate 14 and regulate crooked pressure head initial position, guarantee that crooked pressure head 26 and sample 33 have good initial contact performance;
Described control detection module comprises stretching displacement sensor 11, bending displacement sensor 15, crooked force sensor 16 and tensile force sensor 35, also comprise simultaneously an accurate electromagnetic clutch 19, by the mode of operation of power on/off switch test platform of control electromagnetic clutch 19; Described stretching module connect with motion between the crooked module by synchronous pulley A, B8,20 and synchronous cog belt 6 realize, carry out sequential control by electromagnetic clutch 19; Stretch bending loading sequential reasonably is set realizes the multiple-working modes such as uniaxial tension, the loading of stretch bending certainty ratio and the loading of stretch bending control with changed scale; In loading test platform of the present utility model, institute adds axial load and curved load is measured by tensile force sensor 35, crooked force sensor 16 respectively, and stretching displacement and bending displacement are surveyed by stretching displacement sensor 11, bending displacement sensor 15 respectively.
One end of described crooked force sensor 16 is fixed in the support holes of tooth bar installing plate 14 correspondences, and the other end is connected with crooked pressure head 26 by studs, and guarantees that the axis of mounting hole is by the contact point of crooked pressure head and sample; One end of tensile force sensor 35 is fixed on the power fixing rack for sensor 36, and the other end is connected by studs and slip clamp concrete 28, guarantees that the installation of sensors axially bored line is by the symmetrical center line of sample; Stretching displacement sensor 11 stiff ends are fixed in the slip clamp concrete 28 corresponding mounting holes, and drag link end is connected with stretching worktable A30 by displacement sensor bracket 31, guarantee the mounting center line of displacement transducer and the depth of parallelism requirement of two guide rails and sample; The stiff end of bending displacement sensor 15 is installed in the tooth bar installing plate 14 corresponding mounting holes, and drag link end is fixed on the base plate 7 by displacement transducer fixed support 13, guarantees the depth of parallelism requirement of two linear rolling tracks under itself and the bending table.
Described two-way leading screw 27 is the two-way leading screw of left-right rotary, in the drawing process about two stretching worktable midplane extrusions, sample focus target point position immobilizes, and provides advantage for fixed point applies crooked transverse force.
Described synchronous pulley B20 directly is fixed on the outer ring ring flange of electromagnetic clutch 19, and on gear shaft 23, the inner ring of electromagnetic clutch 19 connects with gear shaft 23 by flat key by endoporus bearing 37 empty sets.
Described tooth bar installing plate 14 is installed on the slide block of linear rolling track B21, and before system powers on, but the initial position of the crooked pressure head of manual adjustments guarantees its contact performance.
Described electromagnetic clutch 19 is accurate little electromagnetic clutch, and this clutch coupling has the advantages such as compact conformation, detent torque is large, startup is quick; Come restrained stretching and crooked sequential and the relative scale relation of loading by the power on/off of control electromagnetic clutch 19.
The overall dimensions of described small sample stretch bending compound loading type material mechanical property test platform is 180 * 160 * 80mm, have good structure compatible with main flow micro-imaging assembly, the in-situ test that can be material and Mechanical Properties of Products thereof provides new research means.
The beneficial effects of the utility model are:
1. the utility model is novel, and compact overall structure by a power source---stepper motor, drives stretching and crooked two load-on modules simultaneously.Such design has been avoided arranging two power sources and has been driven respectively the defectives such as expensive, the difficult control of two load-on modules and complex structure.
2. although two load-on modules of the utility model are driven by the same power source, can regulate by controlling artificially electromagnetic clutch loading sequential with crooked loading ratio but stretch, this has just guaranteed that this test platform both can realize that independent stretching also can realize stretch bending combined load test, had widened the function of existing Material mechanics test device.
3. the loading speed of the related two large load-on modules of the utility model is different, crooked loading speed is far longer than the loading speed of stretching, this has just guaranteed when test specimen is stretched to certain phase, as long as switch on to clutch coupling, crooked transverse force can be loaded into Expected Results, can not produce because of the phenomenon such as stretching constriction to make crooked pressure head break away from the effect of test specimen at once.Practical.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, consists of 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 consist of improper restriction of the present utility model.
Fig. 1 is overall appearance structural representation of the present utility model;
Fig. 2 is that master of the present utility model looks schematic diagram;
Fig. 3 is schematic top plan view of the present utility model;
Fig. 4 is test specimen installation way schematic diagram of the present utility model;
Fig. 5 is the scheme of installation of electromagnetic clutch of the present utility model;
Fig. 6 is that the utility model is realized the schematic diagram that the test specimen combined load loads, wherein, and power
F t Be tensile load, power
F b Be three-point bending load.
Among the figure: 1. stepper motor, 2. ring flange, 3. worm screw, 4. worm gear, 5. abutment sleeve, 6. synchronous cog belt, 7. base plate, 8. synchronous pulley A, 9. leading screw supporting base base, 10. leading screw supporting base, 11. the stretching displacement sensor, 12. linear rolling tracks, 13. displacement transducer fixed supports, 14. the tooth bar installing plate, 15. bending displacement sensors, 16. crooked force sensors, 17. gear, 18. gear shaft supporting bases, 19. electromagnetic clutchs, 20. synchronous pulley B, 21. linear rolling track B, 22. tooth bars, 23. gear shaft, 24. supporters, 25. set nuts, 26. crooked pressure head, 27. two-way leading screws, 28. slip clamp are concrete, 29. stretching worktable B, 30. stretching worktable A, 31. displacement sensor brackets, 32. top board A, 33. samples, 34. top board B, 35. the tensile force sensor, 36. power fixing rack for sensor, 37 bearings.
Embodiment
Further specify detailed content of the present utility model and embodiment thereof below in conjunction with accompanying drawing.
Extremely shown in Figure 6 referring to Fig. 1, small sample stretch bending compound loading type material mechanical property test platform of the present utility model, comprise driver module, stretching module, crooked module and control detection module, described driver module is that stepper motor 1 passes through worm screw, worm gear 3,4 are connected with two-way leading screw 27, by stepper motor 1 through worm screw, worm gear 3,4 slow down is delivered to driving torque on the two-way leading screw 27, described stepper motor 1 is rigidly fixed on the test platform base plate 7 by ring flange 2, worm screw 3 is socketed on the output shaft of stepper motor 1, and worm gear 4 is fixed on the axle head that stretches out of two-way leading screw 27; Guarantee the assembly properties of worm and gear with abutment sleeve 5; Under the control of electric pulse, the stepper motor output movement slows down by worm and gear speed-reduction apparatus and commutates;
Described stretching module be drive by two-way ball guide screw nat about two stretching worktable A, B30,29 midplane extrusions, stretching worktable A, B30,29 are installed in respectively on the slide block of linear rolling track A12; By the rotation of two-way leading screw 27, drive stretching worktable A, B30,29 and move at linear rolling track A12, thereby realize the stretching of sample is moved.The glidepath of described linear rolling track A12 is installed in the locating slot of base plate 7, about guaranteeing between two linear rolling track A, the B12,21 and and the depth of parallelism requirement of two-way leading screw 27; Described two-way leading screw 27 adopts 10 supportings of special-purpose leading screw supporting base, and leading screw supporting base 10 is fixed on the base plate 7 by its base 9; Two stretching worktable A, B30,29 symmetries move under the drive of two nuts, thereby guarantee the invariable property of to be seen some position, test specimen center;
Described crooked module is to drive crooked pressure head 26 by gear, tooth bar 17,22 transmission to finish the three-point bending test; Crooked module be by synchronous pulley A, B8,20 and the motion that passes over of synchronous cog belt 6 be delivered on the gear shaft 23 through the combination of electromagnetic clutch 19, gear shaft 23 driven gears 17 are converted into the traveling priority of tooth bar installing plate 14 on linear rolling track B21 through tooth bar 22 rotatablely moving, and tooth bar installing plate 14 is finished through the crooked pressure head 26 of crooked force sensor 16 drives the press-bending of test specimen is moved; The glidepath of described linear rolling track B21 is installed in the locating slot of base plate 7, guarantees the depth of parallelism requirement of two guide rails, satisfies simultaneously the verticality requirement with sample; In the situation that electromagnetic clutch 19 outages can promote by manual mode tooth bar installing plate 14 and regulate crooked pressure head initial position, guarantee that crooked pressure head 26 and sample 33 have good initial contact performance;
Described control detection module comprises stretching displacement sensor 11, bending displacement sensor 15, crooked force sensor 16 and tensile force sensor 35, also comprise simultaneously an accurate electromagnetic clutch 19, by the mode of operation of power on/off switch test platform of control electromagnetic clutch 19; Described stretching module connect with motion between the crooked module by synchronous pulley A, B8,20 and synchronous cog belt 6 realize, carry out sequential control by electromagnetic clutch 19; Stretch bending loading sequential reasonably is set realizes the multiple-working modes such as uniaxial tension, the loading of stretch bending certainty ratio and the loading of stretch bending control with changed scale; In loading test platform of the present utility model, institute adds axial load and curved load is measured by tensile force sensor 35, crooked force sensor 16 respectively, and stretching displacement and bending displacement are surveyed by stretching displacement sensor 11, bending displacement sensor 15 respectively.
One end of described crooked force sensor 16 is fixed in the support holes of tooth bar installing plate 14 correspondences, and the other end is connected with crooked pressure head 26 by studs, and guarantees that the axis of mounting hole is by the contact point of crooked pressure head and sample; One end of tensile force sensor 35 is fixed on the power fixing rack for sensor 36, and the other end is connected by studs and slip clamp concrete 28, guarantees that the installation of sensors axially bored line is by the symmetrical center line of sample; Stretching displacement sensor 11 stiff ends are fixed in the slip clamp concrete 28 corresponding mounting holes, and drag link end is connected with stretching worktable A30 by displacement sensor bracket 31, guarantee the mounting center line of displacement transducer and the depth of parallelism requirement of two guide rails and sample; The stiff end of bending displacement sensor 15 is installed in the tooth bar installing plate 14 corresponding mounting holes, and drag link end is fixed on the base plate 7 by displacement transducer fixed support 13, guarantees the depth of parallelism requirement of two linear rolling tracks under itself and the bending table.
Described two-way leading screw 27 is the two-way leading screw of left-right rotary, in the drawing process about two stretching worktable midplane extrusions, sample focus target point position immobilizes, and provides advantage for fixed point applies crooked transverse force.
Described synchronous pulley B20 directly is fixed on the outer ring ring flange of electromagnetic clutch 19, and on gear shaft 23, the inner ring of electromagnetic clutch 19 connects with gear shaft 23 by flat key by endoporus bearing 37 empty sets.
Described tooth bar installing plate 14 is installed on the slide block of linear rolling track B21, and before system powers on, but the initial position of the crooked pressure head of manual adjustments guarantees its contact performance.
Described electromagnetic clutch 19 is accurate little electromagnetic clutch, and this clutch coupling has the advantages such as compact conformation, detent torque is large, startup is quick; Come restrained stretching and crooked sequential and the relative scale relation of loading by the power on/off of control electromagnetic clutch 19.
The overall dimensions of described small sample stretch bending compound loading type material mechanical property test platform is 180 * 160 * 80mm, have good structure compatible with main flow micro-imaging assembly, the in-situ test that can be material and Mechanical Properties of Products thereof provides new research means.
To shown in Figure 6, by pulse/direction control model Driving Stepping Motor 1, stepper motor 1 is fixed on the base plate 7 rigidly by ring flange 2 referring to Fig. 1, and ring flange base and base plate 7 are realized the location by two register pins, and lock with lock-screw.Worm screw 3 directly is socketed on the projecting shaft of motor, lock with radial screw, worm gear 4 with matching is installed on the axle journal of two-way leading screw 27 axle heads, and its axial location is that the end contact by an abutment sleeve 5 and synchronous pulley cooperates and realizes, also by radially lock-screw locking.Two-way leading screw 27 drives the stretching worktable by the left and right sides turning nut that cooperates with it and realizes the incorgruous motion of single shaft, to rotatablely move simultaneously by one group of synchronous pulley A, B8,20 and synchronous cog belt 6 be delivered on the outer ring flange of electromagnetic clutch 19, the inner ring of electromagnetic clutch 19 and gear shaft 23 connect by flat key, gear shaft 23 is by 18 supportings of gear shaft supporting base, and guaranteeing that by a set nut 25 it axially is not moved, gear shaft supporting base 18 is fixed on the base plate 7 by supporting mass 24.During electromagnetic clutch 19 energising, drive tooth bar installing plate 14 by gear 17, tooth bar 22 engagement systems and do traveling priority at guide rail, realize flexure operations thereby drive crooked pressure head 26.The location of sample 33 is (annotate: the width of sample holder part and groove, boss are wide) that cooperate to realize by the boss of the detent on top board A, the B32,34 and stretching worktable A30 and the concrete 28 first-class wide constraint of slip clamp.Housing screw on pressing plate A, the B32,34 is used for providing stable holding force.Before system's energising, electromagnetic clutch 19 is in the state of outage, this moment, gear shaft 23 was in released state with synchronous pulley B20, therefore be convenient to utilize the position of manual mode adjusting gear rack installing plate in order to determine the initial position of crooked pressure head 26, crooked pressure head can contact with sample rapidly after guaranteeing the electromagnetic clutch energising, applies corresponding bending load.
The course of work of the present utility model is as follows:
Under the mode of operation of independent axial tension: at first the small sample 33 of surveying is placed on the boss of stretching worktable A30 and concrete 28 correspondences of slip clamp, rotate the initial position of two-way leading screw 27 adjusting samples, make just being pressed into a little for crooked pressure head 26 of its mid point.Corresponding top board is installed to corresponding position, guarantees that the installation axis of sample is parallel with the draw direction of worktable, with housing screw sample is compressed.By the given stepper motor pulse signal of pulse/direction control mode, under the driving of stepper motor 1, worm couple transmits motion on the two-way leading screw 27, it is mobile round about that the rotation of two-way leading screw 27 drives stretching worktable A, B30,29 by two nuts, finishes the extensional motion to test specimen 33.In whole drawing process stretching displacement sensor 11 and tensile force sensor 35 with the displacement that collects and load signal in the middle of data collecting card is sent to computing machine, in conjunction with corresponding host computer algorithm and software systems the data of input are carried out the processing such as match, demonstration, and obtain the stress-strain diagram of exosyndrome material mechanical property, and then obtain the important mechanics parameters such as elastic modulus, yield limit, tensile strength, length growth rate.
Load under the mode of operation at the stretch bending different proportion: same as above, at first the small sample 33 of surveying is placed on the boss of stretching worktable A30 and concrete 28 correspondences of slip clamp, rotate the initial position of two-way leading screw 27 adjusting samples 33, make just being pressed into a little for crooked pressure head 26 of its mid point.Corresponding pressing plate is installed to corresponding position, guarantees that the installation axis of sample is parallel with the draw direction of worktable, with housing screw sample is compressed.And then manually promoting tooth bar installing plate 14 makes crooked pressure head 26 and sample 33 keep initial contact condition.Before system powers on, at first to set corresponding drawing stress state point when applying moment of flexure accordingly.When determining that by pulse/given stepper motor of direction control model rotating speed (this moment, electromagnetic clutch was the state that is in outage) is when the drive stretching module stretches action to sample, displacement transducer 11 and power sensor 35 are sent to Computer Processing to the data that record in the drawing process and obtain real-time drawing stress state, when reaching the stress state of experiment regulation, send instruction by computing machine, electromagnetic clutch 19 is switched at once, driven gear axle rotation, through rack-and-pinion so that crooked pressure head promptly presses to sample.Meanwhile bending displacement sensor 15 and crooked force sensor 16 are sent to the displacement of BENDING PROCESS and load data in the computing machine in the lump through data collecting card.The data of input are carried out the mechanical property parameters of processing acquisition material under this stretch bending integrated mode such as match, demonstration through corresponding host computer algorithm and software systems.Repeat above work, different drawing stress state points just can record the mechanical property parameters of same material under the stretch bending combined load of many group different proportions when the loading moment of flexure only need be set.
In the whole test process, tested sample all can be under the real-time monitored of optical microphotograph imaging system from the Initiation And Propagation of crackle to last fracture damage under load, and research material moment of flexure under the different stretch stress state is had guiding significance to the research of material damage micromechanism of damage.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. small sample stretch bending compound loading type material mechanical property test platform, it is characterized in that: comprise driver module, stretching module, crooked module and control detection module, described driver module is that stepper motor (1) passes through worm screw, worm gear (3,4) be connected with two-way leading screw (27), by stepper motor (1) through worm screw, worm gear (3,4) deceleration is delivered to driving torque on the two-way leading screw (27), described stepper motor (1) is rigidly fixed on the test platform base plate (7) by ring flange (2), worm screw (3) is socketed on the output shaft of stepper motor (1), and worm gear (4) is fixed on the axle head that stretches out of two-way leading screw (27);
Described stretching module is that the rotation by two-way leading screw (27) drives stretching worktable A, B(30,29) at linear rolling track A(12) movement, stretching worktable A, B(30,29) be installed in respectively linear rolling track A(12) slide block on;
Described crooked module is that the transmission by gear, tooth bar (17,22) drives crooked pressure head (26) and finishes the three-point bending test; With synchronous pulley A, B(8,20) and the motion that passes over of synchronous cog belt (6) be delivered on the gear shaft (23) through electromagnetic clutch (19), gear shaft (23) driven gear (17) is converted into the traveling priority of tooth bar installing plate (14) on linear rolling track B (21) through tooth bar (22) rotatablely moving, tooth bar installing plate (14) drives crooked pressure head (26) through crooked force sensor (16) and finishes the press-bending of test specimen action;
Described control detection module comprises stretching displacement sensor (11), bending displacement sensor (15), crooked force sensor (16), tensile force sensor (35) and accurate electromagnetic clutch (19), by the mode of operation of power on/off switch test platform of control electromagnetic clutch (19); Described stretching module connects by synchronous pulley A, B(8,20 with motion between the crooked module) and synchronous cog belt (6) realization, carry out sequential control by electromagnetic clutch (19).
2. small sample stretch bending compound loading type material mechanical property test platform according to claim 1, it is characterized in that: an end of described crooked force sensor (16) is fixed in support holes corresponding to tooth bar installing plate (14), and the other end is connected with crooked pressure head (26) by studs; One end of tensile force sensor (35) is fixed on the power fixing rack for sensor (36), and the other end is connected with slip clamp concrete (28) by studs; Stretching displacement sensor (11) stiff end is fixed in the corresponding mounting hole of slip clamp concrete (28), and drag link end is connected with stretching worktable A (30) by displacement sensor bracket (31); The stiff end of bending displacement sensor (15) is installed in the corresponding mounting hole of tooth bar installing plate (14), and drag link end is fixed on the base plate (7) by displacement transducer fixed support (13).
3. small sample stretch bending compound loading type material mechanical property test platform according to claim 1, it is characterized in that: described synchronous pulley B(20) directly be fixed on the outer ring ring flange of electromagnetic clutch (19), on gear shaft (23), the inner ring of electromagnetic clutch (19) connects with gear shaft (23) by flat key by endoporus bearing (37) empty set.
4. small sample stretch bending compound loading type material mechanical property test platform according to claim 1, it is characterized in that: described tooth bar installing plate (14) is installed on linear rolling track B(21) slide block on.
5. small sample stretch bending compound loading type material mechanical property test platform according to claim 1 is characterized in that the leading screw in the described stretching module is the two-way ball-screw of left-right rotary.
6. the described small sample stretch bending of any one compound loading type material mechanical property test platform in 5 according to claim 1, it is characterized in that: the overall dimensions of described small sample stretch bending compound loading type material mechanical property test platform is 180 * 160 * 80mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220220471 CN202693429U (en) | 2012-05-17 | 2012-05-17 | Material mechanical property testing platform for small sample in stretching and bending combined loading mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220220471 CN202693429U (en) | 2012-05-17 | 2012-05-17 | Material mechanical property testing platform for small sample in stretching and bending combined loading mode |
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| CN202693429U true CN202693429U (en) | 2013-01-23 |
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| CN 201220220471 Withdrawn - After Issue CN202693429U (en) | 2012-05-17 | 2012-05-17 | Material mechanical property testing platform for small sample in stretching and bending combined loading mode |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053033A (en) * | 2009-11-04 | 2011-05-11 | 中国第一汽车集团公司 | Pure bending loading device for testing mechanical property |
| CN102680325A (en) * | 2012-05-17 | 2012-09-19 | 吉林大学 | Material mechanical performance testing platform for small-sized test sample under stretching bending composite loading mode |
| CN108896394A (en) * | 2018-07-13 | 2018-11-27 | 中国工程物理研究院总体工程研究所 | Material Biaxial Compression loading device |
| CN110333134A (en) * | 2019-07-04 | 2019-10-15 | 西北工业大学 | Uniaxial stretching device and experimental method associated with a kind of and neutron scattering |
| US20220341828A1 (en) * | 2019-09-04 | 2022-10-27 | Danfoss Power Solutions Ii Technology A/S | Bend test apparatus for a hydraulic hose |
-
2012
- 2012-05-17 CN CN 201220220471 patent/CN202693429U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053033A (en) * | 2009-11-04 | 2011-05-11 | 中国第一汽车集团公司 | Pure bending loading device for testing mechanical property |
| CN102680325A (en) * | 2012-05-17 | 2012-09-19 | 吉林大学 | Material mechanical performance testing platform for small-sized test sample under stretching bending composite loading mode |
| CN102680325B (en) * | 2012-05-17 | 2014-01-22 | 吉林大学 | Material mechanical performance testing platform for small-sized test sample under stretching bending composite loading mode |
| CN108896394A (en) * | 2018-07-13 | 2018-11-27 | 中国工程物理研究院总体工程研究所 | Material Biaxial Compression loading device |
| CN108896394B (en) * | 2018-07-13 | 2023-12-29 | 中国工程物理研究院总体工程研究所 | Material biax compression loading device |
| CN110333134A (en) * | 2019-07-04 | 2019-10-15 | 西北工业大学 | Uniaxial stretching device and experimental method associated with a kind of and neutron scattering |
| US20220341828A1 (en) * | 2019-09-04 | 2022-10-27 | Danfoss Power Solutions Ii Technology A/S | Bend test apparatus for a hydraulic hose |
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