CN203455240U - Equiaxial tensile test device for elastic material - Google Patents

Equiaxial tensile test device for elastic material Download PDF

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Publication number
CN203455240U
CN203455240U CN201320590847.0U CN201320590847U CN203455240U CN 203455240 U CN203455240 U CN 203455240U CN 201320590847 U CN201320590847 U CN 201320590847U CN 203455240 U CN203455240 U CN 203455240U
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China
Prior art keywords
tensile test
slide block
test apparatus
chute
resilient material
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CN201320590847.0U
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Chinese (zh)
Inventor
赖兴华
夏勇
曹家健
周青
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Suzhou Automotive Research Institute of Tsinghua University
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Suzhou Automotive Research Institute of Tsinghua University
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Abstract

The utility model relates to an equiaxial tensile test device for an elastic material. The equiaxial tensile test device comprises a base for arranging a test piece, a plurality of connecting mechanisms connected with the test piece, and a drag plate connected with the plurality of connecting mechanisms, wherein each connecting mechanism comprises a clamping device for clamping the test piece, a transmission mechanism connected with the clamping device, and a drag device with two ends fixedly connected with the transmission mechanism and the drag plate respectively; the base is provided with a horizontal mounting plate; the transmission mechanism comprises a fixed column fixedly arranged on the mounting plate and a slide block slidably connected with the fixed column; one end of the slide block is fixedly connected with the clamping device, and the other end of the slide block is fixedly connected with one end of the drag device. The equiaxial tensile test device has the advantages of being simple in structure, good in stability in a stretching process, low in manufacturing cost and the like.

Description

The axle tensile test apparatus such as resilient material
Technical field
The utility model relates generally to the axle tensile test apparatus such as a kind of resilient material, belongs to vehicle material Mechanics Performance Testing and representational field.
Background technology
For example, for elastic material (elastomeric material) sign of mechanical property, at least need the test of 3 stress states, as unilateral stretching, plane shear, pure compression.The easy acquisition of stress state and the accuracy of unilateral stretching and plane shear are high, but the stress state of pure compression is difficult for obtaining and accuracy is low, because there is larger friction between test specimen and platen, this friction meeting increases along with the increase of pressure.And for example, for incompressible or compressible material (elastomeric material) hardly, employing waits axle drawing process can produce the stress state that is equivalent to pure compression.Although this test method is more complicated than pure compression test, the pure stress state obtaining can make material model more accurate.
The axle tensile test apparatus such as existing resilient material [manufacture referring to AXEL company (home page of company is http://www.axelproducts.com/pages/hyperelastic.html) or CABER company (home page of company is http://www3.ul.ie/caber/index.php/facilities/equipment-capabilities/mechanical-testing/) etc. axle tensile test apparatus], the axle tension test that waits to resilient material has obtained certain test effect, but also there are many defects, as follows: a, the clamping reliability of test specimen is low, be prone to test specimen break-off, the clamping part-structure of b, test specimen is complicated, total quality is large, in rope traction process, will inevitably bring larger frictional resistance, in c, rope traction process, the low accuracy of bulk testing that makes of the stability of lead reduces, d, whole tensile test apparatus manufacturing cost are high.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of simple in structure, low cost of manufacture, axle tensile test apparatus such as resilient material that test accuracy is high are provided.
For solving above technical matters, the utility model adopts following technical scheme:
The axle tensile test apparatus such as resilient material, comprise for placing the base of test test specimen, a plurality of bindiny mechanisms that are connected with described test specimen, the sheave being connected with a plurality of described bindiny mechanisms, described in each, bindiny mechanism comprises the clamping device for test specimen described in clamping, the gear train being connected with described clamping device, the draw-gear that two ends are fixedly connected with described sheave with described gear train respectively, described base has a horizontal installing plate, described gear train comprises the fixed leg being fixedly installed on described installing plate, the slide block being slidably connected with described fixed leg, one end of described slide block is fixedly connected with described clamping device, the other end of described slide block is fixedly connected with one end of described draw-gear.
On described slide block, offer along its length chute, an end of described fixed leg can be slidably arranged in described chute along described chute.
Described clamping device comprises securing member, the first pad, and described securing member passes described the first pad and described test specimen successively and is fastenedly connected with one end of described slide block.
Described draw-gear comprises pulley assembly, is fixedly installed on described installing plate for pulley support, the traction rope of described pulley assembly are installed, described pulley assembly comprises that pulley spindle, turning set are located at the pulley on described pulley spindle, described pulley spindle is fixedly installed on described pulley support, described traction rope walk around that one end that described pulley makes described traction rope is fixedly connected with described slide block and the other end is fixedly connected with described sheave.
The two ends of described traction rope are connected with described slide block, described sheave respectively by rope hook, described rope hook comprises the first rope hook of being fixedly installed on described slide block, is fixedly installed on the second rope hook on described sheave, and the two ends of described traction rope are connected with described the first rope hook, described the second rope hook respectively.
Described fixed leg is bolt, the fixed block that described gear train also comprises the second pad, be arranged in described chute and be slidably connected with described slide block, described fixed leg is fixedly connected with described installing plate with described fixed block through described the second pad successively, the height of described fixed block is greater than the height of described chute, and the width that described the second pad is greater than described chute along the size of described chute Width makes described fixed block be positioned at all the time described chute.
Large 1mm ~ the 3mm of the height of chute described in the aspect ratio of described fixed block.
Described bindiny mechanism is provided with at least 4.
Described bindiny mechanism is provided with 16.
Described a plurality of bindiny mechanism is evenly distributed on described installing plate.
Due to the enforcement of technique scheme, the utility model compared with prior art tool has the following advantages:
The gear train of axle tensile test apparatus that waits of the present utility model adopts fixed leg and slide block to be used in conjunction with, and has strengthened the stability in traction rope tensile test specimen process, guarantees the homogeneity of stretching, to improve the accuracy of bulk testing.
Tensile test apparatus such as axle such as grade of the present utility model is simple in structure, low cost of manufacture, easy to operate.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view that waits axle tensile test apparatus of the present utility model;
Fig. 2 is the schematic top plan view (not showing sheave) that waits axle tensile test apparatus of the present utility model;
Fig. 3 is the schematic diagram that waits test specimen in axle tensile test apparatus of the present utility model;
Fig. 4 is clamping device and the gear train schematic diagram that waits axle tensile test apparatus of the present utility model;
Fig. 5 is the inclined shaft mapping (display section base) that waits axle tensile test apparatus of the present utility model;
Fig. 6 is the axonometric drawing (not showing traction rope) that waits the draw-gear of axle tensile test apparatus of the present utility model;
In figure: 1, sheave; 2, traction rope; 3, test specimen; 4, securing member; 5, the first pad; 6; Fixed leg; 7, the second pad; 8, slide block; 9, chute; 10, pulley; 11, pulley support; 12, pulley spindle; 13, the second rope hook; 14, the first rope hook; 15, installing plate; 16, observation port; 17, chassis; 18, fixed block.
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
As shown in Fig. 1 ~ 6, the axle tensile test apparatus such as a kind of resilient material, comprise for placing the base of test test specimen 3, a plurality of bindiny mechanisms that are connected with test specimen 3, the sheave 1 being connected with a plurality of bindiny mechanisms, each bindiny mechanism comprises the clamping device for clamping test specimen 3, the gear train being connected with clamping device, the draw-gear that two ends are fixedly connected with sheave 1 with gear train respectively, base has a horizontal installing plate 15, gear train comprises the fixed leg 6 being fixedly installed on installing plate 15, the slide block 8 being slidably connected with fixed leg 6, one end of slide block 8 is fixedly connected with clamping device, the other end of slide block 8 is fixedly connected with one end of draw-gear, on slide block 8, offer along its length chute 9, one end of fixed leg 6 can be slidably arranged in chute 9 along chute 9.
As shown in Fig. 2 ~ 4, clamping device comprises securing member 4, the first pad 5, and securing member 4 passes successively the first pad 5 and test specimen 3 and and one end of slide block 8 is fastenedly connected.
Draw-gear comprises pulley assembly, is fixedly installed on installing plate 15 for pulley support 11, the traction rope 2 of pulley assembly are installed, pulley assembly comprises that pulley spindle 12, turning set are located at the pulley 10 on pulley spindle 12, pulley spindle 12 is fixedly installed on pulley support 11, traction rope 2 walk around that one end that pulley 10 makes traction rope 2 is fixedly connected with slide block 8 and the other end is fixedly connected with sheave 2.The two ends of traction rope 2 are connected with slide block 8, sheave 2 respectively by rope hook, rope hook comprises the first rope hook 14 of being fixedly installed on slide block 8, is fixedly installed on the second rope hook 13 on sheave 1, and the two ends of traction rope 2 are connected with the first rope hook 14, the second rope hook 13 respectively.
As shown in Figure 4, fixed leg 6 is bolt, the fixed block 18 that gear train also comprises the second pad 7, be arranged in chute 9 and be slidably connected with slide block 8, fixed leg 5 is connected with installing plate 15 through the second pad 7, fixed block 18 successively, the height of fixed block 18 is greater than the height of chute 9, the width that the second pad 7 is greater than chute 9 along the size of chute 9 Widths makes fixed block 18 be positioned at all the time chute 9, while specifically arranging, and the large 1mm ~ 3mm of height of the aspect ratio chute 9 of fixed block 18.It is foursquare fixed block that fixed block 18 can be arranged to xsect, and the width of fixed block 18 can be arranged to the left and right than the little 1mm of the width of chute 9, like this under the acting in conjunction of the second pad 7 and fixed block 18, when carrying out tension test, fixed block 18 can be positioned at chute 9 all the time, and slide block 8 glide direction when sliding is more stable.
Bindiny mechanism is provided with at least 4, and the bindiny mechanism that waits axle tensile test apparatus in this example is provided with 16 Ge,16Ge bindiny mechanisms and is evenly distributed on installing plate 15.
For the ease of observing the pulled out condition of test specimen 3, in the centre of installing plate 15, offer circle observation hole 16, the size of observation port 16 is a bit larger tham the size of the center test section of test specimen 3, owing to thering is a horizontal chassis 17 on base, chassis 17 be positioned at installing plate 15 under, on chassis 17, arrange a level crossing, the angle of debugging level crossing and surface level is 45 degree, guarantee to observe by level crossing the center measured zone of test specimen 3, adopt camera by level crossing, to take the measurement zone, center of test specimen 3, reach the object of monitor strain.Of the present utility modelly wait axle tensile test apparatus compared with prior art, camera is installed easily, measures more conveniently, and the accuracy of measurement is higher.
Principle of work of the present utility model:
Test specimen 3 is selected elastomeric material, on test specimen 3, offer 16 apertures, securing member 4 successively through the first pad 5 and aperture with and one end of slide block 8 is fixedly connected with, fixed leg 6 is fixedly connected with installing plate 15 with fixed block 18 through the second pad 7 successively, fixed block 18 is positioned at chute 9 and is slidably connected with slide block 8, the other end of slide block 8 is connected with one end of traction rope 2, the other end of traction rope 2 is walked around pulley 10 by the below of pulley 10 and is connected with sheave 1 by the second rope hook 13, 16 the second rope hooks 13 are evenly distributed on sheave 1, when elastomeric material test specimen 3 carries out tension test, the whole axle tensile test apparatus that waits is arranged on universal testing machine, sheave 1 is arranged on the crossbeam of universal testing machine, bottom Deng the base of axle tensile test apparatus is fixed on the base of universal testing machine, crossbeam pulls sheave 1 up to move, drive traction rope 2 up to move, traction rope 2 pulls slide block 8 to slide outward, again because fixed block 18 is fixed on installing plate 15 and fixed block 18 is positioned at chute 9, so the direction of motion of every slide block 8 is all fixing, 16 slide blocks 8 pull test specimen 3 to carry out outward stretching experiment along 16 different directions.
By above-mentioned setting, tensile test apparatus such as axle such as grade of the present utility model compared with prior art tool has the following advantages:
1) bare terminal end of test specimen is provided with aperture, in the situation that guaranteeing not occur tearing, has promoted the reliability of test specimen tension, difficult drop-off;
2) clamping device of test specimen is simple in structure, low cost of manufacture;
3) fixed block and slide block be used in conjunction with the stability that has strengthened traction rope tensile test specimen, guarantee the homogeneity of 16 draw directions;
4) etc. the base of axle tensile test apparatus bottom is fixedly connected with universal testing machine, guarantees the stability of whole device in tension process.
Above the utility model is described in detail; its object is to allow the personage who is familiar with this art can understand content of the present utility model and be implemented; can not limit protection domain of the present utility model with this; all equivalences of doing according to Spirit Essence of the present utility model change or modify, and all should be encompassed in protection domain of the present utility model.

Claims (10)

1. the axle tensile test apparatus such as resilient material, comprise for placing the base of test test specimen, a plurality of bindiny mechanisms that are connected with described test specimen, the sheave being connected with a plurality of described bindiny mechanisms, described in each, bindiny mechanism comprises the clamping device for test specimen described in clamping, the gear train being connected with described clamping device, the draw-gear that two ends are fixedly connected with described sheave with described gear train respectively, it is characterized in that, described base has a horizontal installing plate, described gear train comprises the fixed leg being fixedly installed on described installing plate, the slide block being slidably connected with described fixed leg, one end of described slide block is fixedly connected with described clamping device, the other end of described slide block is fixedly connected with one end of described draw-gear.
2. the axle tensile test apparatus such as resilient material according to claim 1, is characterized in that, on described slide block, offer along its length chute, an end of described fixed leg can be slidably arranged in described chute along described chute.
3. the axle tensile test apparatus such as resilient material according to claim 1, is characterized in that, described clamping device comprises securing member, the first pad, and described securing member is fastenedly connected with one end of described slide block through described the first pad and described test specimen successively.
4. the axle tensile test apparatus such as resilient material according to claim 1, it is characterized in that, described draw-gear comprises pulley assembly, is fixedly installed on described installing plate for pulley support, the traction rope of described pulley assembly are installed, described pulley assembly comprises that pulley spindle, turning set are located at the pulley on described pulley spindle, described pulley spindle is fixedly installed on described pulley support, described traction rope walk around that one end that described pulley makes described traction rope is fixedly connected with described slide block and the other end is fixedly connected with described sheave.
5. the axle tensile test apparatus such as resilient material according to claim 4, it is characterized in that, the two ends of described traction rope are connected with described slide block, described sheave respectively by rope hook, described rope hook comprises the first rope hook of being fixedly installed on described slide block, is fixedly installed on the second rope hook on described sheave, and the two ends of described traction rope are connected with described the first rope hook, described the second rope hook respectively.
6. the axle tensile test apparatus such as resilient material according to claim 1, it is characterized in that, described fixed leg is bolt, the fixed block that described gear train also comprises the second pad, be arranged in described chute and be slidably connected with described slide block, described fixed leg is fixedly connected with described installing plate with described fixed block through described the second pad successively, the height of described fixed block is greater than the height of described chute, and the width that described the second pad is greater than described chute along the size of described chute Width makes described fixed block be positioned at all the time described chute.
7. the axle tensile test apparatus such as resilient material according to claim 6, is characterized in that, the large 1mm ~ 3mm of height of chute described in the aspect ratio of described fixed block.
8. the axle tensile test apparatus such as resilient material according to claim 1, is characterized in that, described bindiny mechanism is provided with at least 4.
9. the axle tensile test apparatus such as resilient material according to claim 8, is characterized in that, described bindiny mechanism is provided with 16.
10. the axle tensile test apparatus such as resilient material according to claim 9, is characterized in that, described a plurality of bindiny mechanisms are evenly distributed on described installing plate.
CN201320590847.0U 2013-09-24 2013-09-24 Equiaxial tensile test device for elastic material Active CN203455240U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103512809A (en) * 2013-09-24 2014-01-15 清华大学苏州汽车研究院(相城) Equiaxial tensile test device for elastic material
CN105067967A (en) * 2015-07-16 2015-11-18 国网智能电网研究院 Portable apparatus for measuring dielectric property of large-test-piece elastic material in non-linear stretching state

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103512809A (en) * 2013-09-24 2014-01-15 清华大学苏州汽车研究院(相城) Equiaxial tensile test device for elastic material
CN103512809B (en) * 2013-09-24 2017-01-04 清华大学苏州汽车研究院(相城) A kind of Equiaxial tensile test device for elastic material
CN105067967A (en) * 2015-07-16 2015-11-18 国网智能电网研究院 Portable apparatus for measuring dielectric property of large-test-piece elastic material in non-linear stretching state

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