CN102269672A - Hydraulic power station of biaxial tensile testing machine for thin film - Google Patents

Hydraulic power station of biaxial tensile testing machine for thin film Download PDF

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Publication number
CN102269672A
CN102269672A CN 201110107922 CN201110107922A CN102269672A CN 102269672 A CN102269672 A CN 102269672A CN 201110107922 CN201110107922 CN 201110107922 CN 201110107922 A CN201110107922 A CN 201110107922A CN 102269672 A CN102269672 A CN 102269672A
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China
Prior art keywords
fuel tank
power station
hydraulic
valve
testing machine
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CN 201110107922
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Chinese (zh)
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CN102269672B (en
Inventor
陈务军
施光林
张丽
何艳丽
张大旭
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上海交通大学
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Abstract

The invention relates to a hydraulic power station of a biaxial tensile testing machine for a thin film, which belongs to the technical field of material testing. The hydraulic power station comprises two power units which have the same structure and are arranged in a mirror image manner, wherein each power unit comprises an oil tank, a hydraulic valve block, a proportional overflow valve, a fixed differential reducing valve, a pressure sensor, an energy storage device, a pressure gauge, an electric motor, an air filter, a cooler, an oil return filter, a radial plunger pump, an oil suction filter, a three-position four-way electromagnetic reversing valve and an overflow valve. The hydraulic power station can be applied in uniaxial tension and low-cycle reciprocation, biaxial tension and low-cycle reciprocation, tear testing and the like of building film materials, has the advantages of large pulling force, high precision and fast control response, and is simple, specialized and movable.

Description

The biaxial stretch-formed testing machine hydraulic power station of film
Technical field
The present invention relates to a kind of device of testing of materials technical field, be specifically related to the biaxial stretch-formed testing machine hydraulic power station of a kind of film.
Background technology
Macromolecule compound fabric membraneous material lightweight, high-strength, chemically-resistant, permanance and use at industrial circles such as modern building fabric field, Aero-Space are as building membrane structure, aviation dirigible, space flight parachute or soft landing system etc.Film of fabric generally has base cloth and coating to constitute, base cloth is by the macromolecular material synthon that reel off raw silk from cocoons, be made into cloth then, mainly contain dacron, glass fibre etc. at building field, mainly contain dacron, aramid fiber, nylon fiber etc. at aerospace field, coating mainly contains teflon, poly-inclined to one side tetrafluoroethene, adopts coating or laminated, and substrate laminated or coating also has other chemical colloid.Therefore, the film of fabric material has complicated mechanical behavior feature, shows as material nonlinearity, non-resilient, anisotropy, viscoelasticity, amphicheirality etc.Domestic main mechanics parameter about the film material, design at present used according to being mainly derived from single pass test, test, the analysis and research of carrying out the two-way mechanical behavior of film material arranged in recent years, and obtained impressive progress and achievement in research.
The cupping machine power source generally has air pressure, hydraulic pressure, motor.The cylinder of air pressure is big, pressure is little, needs pneumatic supply (large-scale air compressor machine); Motor and leading screw matching design, stepper motor can realize degree of precision and big pulling force; Hydraulic pressure has that cylinder is little, pulling force is big, response is fast, precision is high, but does not have specific hydraulic power system at the biaxial stretch-formed testing machine of film, general versatility structural test chamber hydraulic power unit (as MTS etc.) very complicated, expensive.
(film material parameter, tear test method, gas cell dual-spindle testing method 2005.3.) are introduced by China Construction Industry Press in " the membrane structure engineering design " of Chen Wujun work.
" multifunctional membrane structure tester " of Chen Wujun, Fu Gongyi work (ZL.20041006758.7) developed multifunctional membrane structure tester, adopts leading screw and link mechanism to load, and the loading ratio is restricted and precision is low.
" the biaxial stretch-formed test of membraneous material " of Liu Wenbin, Yu Jinghai, Wu Jiansheng work (engineering mechanics, 1998,15 (2): 138-145) developed inflation twin shaft test unit, adopted grating measuring to survey big strain, and carried out the analysis of membrane material attribute testing.
" development of the biaxial stretch-formed testing machine of membrane structure and exploitation " (science and technology and engineering of Chen Lu, Li Yang, Zhang Qilin, Yang Zonglin work, 2006,6 (1): 17-23) the biaxial stretch-formed testing machine of membrane structure has been introduced in development, adopt motor as power, connect leading screw, force transducer, displacement transducer etc. and realize two-way loading and control.
Li Yangzhu " the mechanical property research of building film material material and membrane structure and application " (Tongji University's doctorate paper, 2007.8) have studied biaxial stretch-formed testing machine, have customized and have loaded spectrum and test method.
" application of Digital Image Correlation Method in the tension test of film material " (engineering mechanics of Sun Wei, He Xiaoyuan, Xu Ming, Luo Binzhu, 2007,24 (2): 34-39) adopted digital correlation method to carry out the strain field test analysis of biaxial stretch-formed test, special-purpose pilot system, the wide 200mm of cross test specimen limb.
What membrane structure had been studied in the tension test of the nonlinear analysis of jacking membrane structure and the fabric membrane material " research " (Southeast China University's doctorate paper, 2003.9) of Luo Binzhu looks for shape, load and cutting nonlinear analysis method, and has carried out biaxial stretch-formed experimental study.
" evaluation method of building film material material biaxial stretching elastic constant " of Yi Honglei, fourth suffering, Chen Shouhui work (engineering mechanics, 2006,23 (10): 180-184) studied that the film material is unidirectional, the computing method of biaxial tensile test elastic constant.
" the biaxial stretch-formed experimental study of PVC membrane material and engineering thereof are used " (Shanghai University's master thesis of Ni Jingzhu, 2008.1) utilize Zwick/Rocell-Z010/TH2A to carry out test of multi-state twin shaft and parameter analysis, this testing machine is that two uniaxial test machine orthogonal sets merging customization loading spectrums form, maximum pull 10kN, the wide only 60mm of test specimen spider.
Summary of the invention
The objective of the invention is to deficiency at existing simple and easy twin shaft test unit or general test power station, provide a kind of film biaxial stretch-formed testing machine hydraulic power station, can be applicable to round, biaxial stretch-formed and low all round, the tear tests etc. of building film material uniaxial tension, have that pulling force is big, precision is high, control response is fast, simple, special-purpose a, advantage movably with low week.
The present invention is achieved by the following technical solutions, the present invention is provided with by the power unit mirror image of two same structures and forms, each power unit comprises: fuel tank, hydraulic valve block, proportional pressure control valve, uniform-pressure-drop valve, pressure transducer, accumulator, tensimeter, motor, empty filter, refrigeratory, return filter, radial plunger pump, the oil suction filtrator, 3-position 4-way solenoid directional control valve and surplus valve, wherein: hydraulic valve block, motor, empty filter, refrigeratory and return filter are arranged at the end face of body structure, hydraulic valve block, refrigeratory and return filter are communicated with successively, uniform-pressure-drop valve, proportional pressure control valve, pressure transducer, accumulator, tensimeter and 3-position 4-way solenoid directional control valve are connected in series successively and are connected with hydraulic valve block, fluid level controller and temperature controller are arranged at the top inner wall of fuel tank, and the outlet at bottom end of fuel tank connects radial plunger pump successively, oil suction filtrator and and external communications.
Described fuel tank has two to be listed as casing, shelve oil tank base support, the bottom of fuel tank is provided with castor, the both sides of fuel tank are provided with four hangers, four hangers of fuel tank two side elevations, two fuel tanks clean lid, two the liquid level thermometers in positive facade limit, the left and right sides, upper end, two purge cocks in positive limit, the left and right sides, facade lower end in the middle of the positive facade.
The present invention makes full use of the characteristics of radial plunger pump, motor, various valves, realize that the biaxial stretch-formed testing machine power station of film pulling force is big, precision is high, control response is fast, simple, special-purpose, removable, can be applicable to uniaxial tensile test machine, biaxial stretch-formed testing machine etc.
Description of drawings
Fig. 1 is the biaxial stretch-formed testing machine power station of a film vertical view;
Among Fig. 1: 6 proportional pressure control valves, 8 accumulators, 9 tensimeters, 10 motor, 11 empty filters, 12 refrigeratorys, 13 return filters, 21 hangers, 22 hydraulic valve blocks, 23 scavenge pipes, 26 stop valves, 27 2/2-way Solenoid ball valves, 28 valve piece oil inlet pipes, 29 surplus valves, 32 fuel tanks.
Fig. 2 is the biaxial stretch-formed testing machine power station of a film front elevation view;
Among Fig. 2: 8 accumulators, 10 motor, 18 oil tank base supports, 19 purge cocks, 20 liquid level thermometers, 21 hangers, 22 hydraulic valve blocks, 23 scavenge pipes, 24 3-position 4-way solenoid directional control valves, 25 fuel tanks clean lid, 32 fuel tanks.
Fig. 3 is the biaxial stretch-formed testing machine power station of a film back elevation;
Among Fig. 3: 8 accumulators, 9 tensimeters, 10 motor, 12 refrigeratorys, 13 return filters, 18 oil tank base supports, 21 hangers, 22 hydraulic valve blocks, 23 scavenge pipes, 32 fuel tanks.
Fig. 4 is the biaxial stretch-formed testing machine power station of a film left side elevation drawing;
Among Fig. 4: 8 accumulators, 10 motor, 12 refrigeratorys, 18 oil tank base supports, 22 hydraulic valve blocks, 32 fuel tanks.
Fig. 5 is the biaxial stretch-formed testing machine power station of a film right side elevational view;
Among Fig. 5: 8 accumulators, 10 motor, 12 refrigeratorys, 18 oil tank base supports, 22 hydraulic valve blocks, 30 work oil-feed ports, 31 work oil return openings, 32 fuel tanks.
Fig. 6 is the biaxial stretch-formed testing machine power station of a film skeleton view;
Among Fig. 6: 1 castor, 5 uniform-pressure-drop valves, 6 proportional pressure control valves, 7 pressure transducers, 8 accumulators, 9 tensimeters, 10 motor, 11 empty filters, 12 refrigeratorys, 13 return filters, 18 oil tank base supports, 19 purge cocks, 20 liquid level thermometers, 21 hangers, 22 hydraulic valve blocks, 23 scavenge pipes, 24 3-position 4-way solenoid directional control valves, 25 fuel tanks clean lid, 32 fuel tanks.
Fig. 7 is the biaxial stretch-formed testing machine power station of film cross section A-A figure;
Among Fig. 7: 1 castor, 2 fluid level controllers, 3 temperature controllers, 4 scavenge pipes, 5 uniform-pressure-drop valves, 6 proportional pressure control valves, 7 pressure transducers, 8 accumulators, 9 tensimeters, 10 motor, 11 empty filters, 12 refrigeratorys, 13 return filters, 14 pump supports, 15 radial plunger pumps, 16 oil pump suction tubes, 17 oil suction filtrators, 18 oil tank base supports, 22 hydraulic valve blocks, 28 oil inlet pipes, 32 fuel tanks.
Embodiment
Below embodiments of the invention are elaborated, present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Fig. 1 is the biaxial stretch-formed testing machine power station of a film vertical view.As shown in Figure 1, the present invention includes proportional pressure control valve 6, accumulator 8, tensimeter 9, motor 10, empty filter 11, refrigeratory 12, return filter 13, hanger 21, hydraulic valve block 22, scavenge pipe 23, stop valve 26,2/2-way Solenoid ball valve 27, valve piece oil inlet pipe 28, surplus valve 29, fuel tank 32.Proportional pressure control valve 6, accumulator 8 are arranged with tensimeter 9 and are connected hydraulic valve block 22, motor 10, empty filter 11, refrigeratory 12, return filter 13 are installed on fuel tank 32 end faces, hanger 21 connects fuel tank 32 both sides, hydraulic valve block 22 connects on fuel tank 32 end faces, stop valve 26,2/2-way Solenoid ball valve 27, surplus valve 29 connect hydraulic valve block 22, and valve piece oil inlet pipe 28 connects valve piece 22 and fuel tank 32 end faces.One section scavenge pipe 23 connects hydraulic valve block 22,12, one sections scavenge pipes of refrigeratory, 23 connection refrigeratorys 12, return filter 13.
Fig. 2 is the biaxial stretch-formed testing machine power station of a film front elevation view.As shown in Figure 2, the present invention includes accumulator 8, motor 10, oil tank base support 18, purge cock 19, liquid level thermometer 20, hanger 21, hydraulic valve block 22, scavenge pipe 23,3-position 4-way solenoid directional control valve 24, fuel tank clean cover 25, fuel tank 32.Accumulator 8 connects hydraulic valve block 22, motor 10 connects on fuel tank 32 end faces, purge cock 19 is connected in fuel tank 32 positive facade left and right sides inferior horns, liquid level thermometer 20 is connected in and goes up the angle about fuel tank 32 positive facades, hanger 21 connects fuel tank 32 both sides, hydraulic valve block 22 connects on fuel tank 32 end faces, one section scavenge pipe 23 connects hydraulic valve block 22, refrigeratory 12, one section scavenge pipe 23 connects refrigeratory 12, return filter 13,3-position 4-way solenoid directional control valve 24 connects hydraulic valve block 22, and fuel tank cleans and covers 25 connection fuel tanks, 32 positive facades.
Fig. 3 is the biaxial stretch-formed testing machine power station of a film back elevation.As shown in Figure 3, the present invention includes accumulator 8, tensimeter 9, motor 10, refrigeratory 12, return filter 13, oil tank base support 18, be hanger 21, hydraulic valve block 22, scavenge pipe 23, fuel tank 32.Accumulator 8 is connected hydraulic valve block 22 with tensimeter 9, motor 10, refrigeratory 12 and return filter 13 are connected on fuel tank 32 end faces, oil tank base support 18 connects fuel tank 32 times, hanger 21 connected tanks 32 both sides, hydraulic valve block 22 connects on fuel tank 32 end faces, one section scavenge pipe 23 connects hydraulic valve block 22,12, one sections scavenge pipes of refrigeratory, 23 connection refrigeratorys 12, return filter 13.
Fig. 4 is the biaxial stretch-formed testing machine power station of a film left side elevation drawing.As shown in Figure 4, the present invention includes accumulator 8, motor 10, refrigeratory 12, oil tank base support 18, hydraulic valve block 22, fuel tank 32.Accumulator 8 connects hydraulic valve block 22, and motor 10, refrigeratory 12 are arranged with hydraulic valve block 22 and be connected on fuel tank 32 end faces, and oil tank base support 18 connects fuel tank 32 times.
Fig. 5 is the biaxial stretch-formed testing machine power station of a film right side elevational view.As shown in Figure 5, the present invention includes accumulator 8, motor 10, refrigeratory 12, oil tank base support 18, hydraulic valve block 22, work oil-feed port 30, work oil return opening 31, fuel tank 32.Accumulator 8 connects hydraulic valve block 22, and motor 10, refrigeratory 12 are arranged with hydraulic valve block 22 and be connected on fuel tank 32 end faces, and oil tank base support 18 connects fuel tank 32 times, and work oil-feed port 30, work oil return opening 31 are positioned at hydraulic valve block 22 sides.
Fig. 6 is the biaxial stretch-formed testing machine power station of a film skeleton view.As shown in Figure 6, the present invention includes castor 1, uniform-pressure-drop valve 5, proportional pressure control valve 6, pressure transducer 7, accumulator 8, tensimeter 9, motor 10, empty filter 11, refrigeratory 12, return filter 13, oil tank base support 18, purge cock 19, liquid level thermometer 20, hanger 21, hydraulic valve block 22, scavenge pipe 23,3-position 4-way solenoid directional control valve 24, fuel tank clean cover 25, fuel tank 32.At the bottom of 18 4 jiaos of the castor 1 connection oil tank base supports, uniform-pressure-drop valve 5, proportional pressure control valve 6, pressure transducer 7, accumulator 8 is arranged with tensimeter 9 and is connected hydraulic valve block 22, empty filter 11, refrigeratory 12 is connected on fuel tank 32 end faces with return filter 13, oil tank base support 18 connects fuel tank 32 times, motor 10 connects on fuel tank 32 end faces, purge cock 19 is connected in fuel tank 32 positive facade left and right sides inferior horns, liquid level thermometer 20 is connected in and goes up the angle about fuel tank 32 positive facades, hanger 21 connects fuel tank 32 both sides, hydraulic valve block 22 connects on fuel tank 32 end faces, one section scavenge pipe 23 connects hydraulic valve block 22, refrigeratory 12, one section scavenge pipe 23 connects refrigeratory 12, return filter 13,3-position 4-way solenoid directional control valve 24 connects hydraulic valve block 22, and fuel tank cleans and covers 25 connection fuel tanks, 32 positive facades.
Fig. 7 is the biaxial stretch-formed testing machine power station of film cross section A-A figure, as shown in Figure 7, the present invention includes castor 1, fluid level controller 2, temperature controller 3, scavenge pipe 4, uniform-pressure-drop valve 5, proportional pressure control valve 6, pressure transducer 7, accumulator 8, tensimeter 9, motor 10, empty filter 11, refrigeratory 12, return filter 13, pump support 14, radial plunger pump 15, oil pump suction tube 16, oil suction filtrator 17, oil tank base support 18, hydraulic valve block 22, oil inlet pipe 28, fuel tank 32.At the bottom of 18 4 jiaos of the castor 1 connection oil tank base supports, fluid level controller 2, temperature controller 3 connects fuel tank 32 tops down, scavenge pipe 4 connects fuel tank 32 tops and is communicated with fuel tank 32 outer oil inlet pipe 28 and radial plunger pumps 15 down, uniform-pressure-drop valve 5, proportional pressure control valve 6, pressure transducer 7, accumulator 8, tensimeter 9 connects hydraulic valve block 22, motor 10, empty filter 11, refrigeratory 12, return filter 13 connects on fuel tank 32 end faces, under pump support 14 fuel tanks 32 end faces, radial plunger pump 15 connects pump support 14, oil pump suction tube 16 connects radial plunger pump 15, oil suction filtrator 17 connects oil pump suction tube 16, oil tank base support 18 connects fuel tank 32 times, hydraulic valve block 22 connects on fuel tank 32 end faces, and oil inlet pipe 28 1 ends connect on hydraulic valve block 22 other ends connection fuel tank 32 end faces and are communicated with scavenge pipes 4 in the fuel tank 32.
Scantling of the present invention, material is selected, technological design can be determined at concrete application, comprise fuel tank 32, oil tank base support 18, hydraulic valve block 22, the geometric parameter of pump support 14, fluid level controller 2, temperature controller 3, scavenge pipe 4, uniform-pressure-drop valve 5, proportional pressure control valve 6, pressure transducer 7, accumulator 8, tensimeter 9, motor 10, empty filter 11, refrigeratory 12, return filter 13, radial plunger pump 15, oil pump suction tube 16, oil suction filtrator 17, the model parameter of oil inlet pipe 28, select by matching parameter, fuel tank 32 can adopt stainless steel, oil tank base support 18 can adopt carbon steel, and hydraulic valve block 22 can adopt alloy steel.

Claims (2)

1. biaxial stretch-formed testing machine hydraulic power station of film, it is characterized in that, be provided with by the power unit mirror image of two same structures and form, each power unit comprises: fuel tank, hydraulic valve block, proportional pressure control valve, uniform-pressure-drop valve, pressure transducer, accumulator, tensimeter, motor, empty filter, refrigeratory, return filter, radial plunger pump, the oil suction filtrator, 3-position 4-way solenoid directional control valve and surplus valve, wherein: hydraulic valve block, motor, empty filter, refrigeratory and return filter are arranged at the end face of body structure, hydraulic valve block, refrigeratory and return filter are communicated with successively, uniform-pressure-drop valve, proportional pressure control valve, pressure transducer, accumulator, tensimeter and 3-position 4-way solenoid directional control valve are connected in series successively and are connected with hydraulic valve block, fluid level controller and temperature controller are arranged at the top inner wall of fuel tank, and the outlet at bottom end of fuel tank connects radial plunger pump successively, oil suction filtrator and and external communications.
2. the biaxial stretch-formed testing machine hydraulic power station of film according to claim 1, it is characterized in that, described fuel tank has two to be listed as casing, shelve oil tank base support, the bottom of fuel tank is provided with castor, the both sides of fuel tank are provided with four hangers, four hangers of fuel tank two side elevations, and two fuel tanks clean lid, two the liquid level thermometers in positive facade limit, the left and right sides, upper end, two purge cocks in positive limit, the left and right sides, facade lower end in the middle of the positive facade.
CN2011101079229A 2011-04-28 2011-04-28 Hydraulic power station of biaxial tensile testing machine for thin film CN102269672B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103267681A (en) * 2013-04-25 2013-08-28 同济大学 Method and device for measuring oil volume elastic modulus
CN103884586A (en) * 2014-03-24 2014-06-25 上海交通大学 Electro-hydraulic loading system of film biaxial tensile testing machine
CN104897489A (en) * 2015-06-30 2015-09-09 华东建筑设计研究院有限公司 Test device and method of biaxial mechanical capability of ETFE (ethylene tetra fluoro ethylene) film

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CN2491638Y (en) * 2001-06-29 2002-05-15 李国璋 Reciprocating hydraulic gearbox
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CN201069425Y (en) * 2007-08-01 2008-06-04 合肥通用机械研究院 32MPa hydraulic pressure fatigue test system
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103267681A (en) * 2013-04-25 2013-08-28 同济大学 Method and device for measuring oil volume elastic modulus
CN103884586A (en) * 2014-03-24 2014-06-25 上海交通大学 Electro-hydraulic loading system of film biaxial tensile testing machine
CN104897489A (en) * 2015-06-30 2015-09-09 华东建筑设计研究院有限公司 Test device and method of biaxial mechanical capability of ETFE (ethylene tetra fluoro ethylene) film

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