CN206399742U - Deng bidirectional tensile tester - Google Patents

Deng bidirectional tensile tester Download PDF

Info

Publication number
CN206399742U
CN206399742U CN201621461897.9U CN201621461897U CN206399742U CN 206399742 U CN206399742 U CN 206399742U CN 201621461897 U CN201621461897 U CN 201621461897U CN 206399742 U CN206399742 U CN 206399742U
Authority
CN
China
Prior art keywords
hydraulic
tube
holder
hydraulic cylinder
tensile tester
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.)
Active
Application number
CN201621461897.9U
Other languages
Chinese (zh)
Inventor
赖兴华
赵佳庆
黄毅
周青
夏勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Automotive Research Institute Tsinghua University
Original Assignee
Suzhou Automotive Research Institute Tsinghua University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzhou Automotive Research Institute Tsinghua University filed Critical Suzhou Automotive Research Institute Tsinghua University
Priority to CN201621461897.9U priority Critical patent/CN206399742U/en
Application granted granted Critical
Publication of CN206399742U publication Critical patent/CN206399742U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model is related to the bidirectional tensile testers such as one kind, including the supporting plate for placing test specimen, the multiple bindiny mechanisms being connected with test specimen and the sheave being connected with multiple bindiny mechanisms, each bindiny mechanism includes the clamping unit for clamping test specimen, the traction unit that the gear unit being connected with clamping unit and two ends are connected with gear unit and sheave respectively, gear unit includes the sliding block being slidably connected with supporting plate, it is fixedly installed on the hydraulic cylinder with inner chamber on sliding block, it is arranged on the piston in hydraulic cylinder, and one end is fixedly connected with the piston, the piston rod that the other end is fixedly connected with clamping unit, experimental rig also includes the hydraulic tube that hydraulic oil is filled with tube chamber, each hydraulic cylinder is connected with hydraulic tube and the inner chamber of hydraulic cylinder is connected with the tube chamber of hydraulic tube.The utility model device can automatically by power on hydraulic regulation each draw direction uniformity, by the loading for realizing uniform power, it is to avoid the deformation of test specimen is uneven.

Description

Deng bidirectional tensile tester
Technical field
The utility model belongs to material mechanical performance dynamically test and representational field, for industries such as automobile, aviations, has It is related to the bidirectional tensile testers such as one kind.
Background technology
Elastomeric material is quite varied in the application of automobile industry, and such as tire, engine mounting, door weather strip, collision are surveyed Try dummy etc..The mechanical characteristic data of rubber are obtained for research vehicle safety, auto NVH performance and fuel economy etc. There is important meaning.
Common rubber mechanical test has two kinds of simple tension and Uniaxial Compression.For the Axial compression tests of rubber, have One inevitable error component:When sample is compressed, it is impossible to uniform circumferential expansion, the frictional force on compression interface In the presence of, the local sample expansion closer to compressing surface is more restricted, so sample eventually becomes a drum type.All Test error influence factor inside, this error accounts for leading role., will if therefore method, which can be found, eliminates this phenomenon The compression test test data reliability of rubber is set to be greatly improved.
Deng biaxial tension substituted well as one of Axial compression tests, wait the result of the test of biaxial tensile test The stress/strain curves under Uniaxial Compression can be obtained by formula conversion.Experimental rig Deng biaxial tension is relative to unidirectional Compression test is complicated a lot, if process of the test control is bad, it may appear that very big error, obtained result is on the contrary not as single To the result of compression.But the error in this process of the test can almost be completely eliminated, rather than Axial compression tests In friction not eliminable influence.In the prior art, the bidirectional tensile tester such as also have, but existing equipment is due to being Command displacement is loaded, it is impossible to ensure the uniformity of each draw direction of sample.And existing equipment is by flexible steel wire Rope coordinates pulley to draw sample, and device is excessively complicated, operation inconvenience.Also it is exactly that existing equipment is needed by electronics ten thousand Energy testing machine is loaded, and the size of equipment is limited by testing machine space, thus also limit the maximum of tested sample Deflection.
The content of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art improved etc. two-way there is provided one kind Tensile test apparatus, is applicable the tension test of rubber type of material very much.
To solve above technical problem, the utility model is adopted the following technical scheme that:
Deng bidirectional tensile tester, including base, it is fixedly installed on being used on the base and places test specimen to be tested Supporting plate, the multiple bindiny mechanisms being connected with the test specimen and the sheave being connected with the multiple bindiny mechanism, Mei Gesuo Stating bindiny mechanism includes the clamping unit for test specimen described in clamping, the gear unit being connected with the clamping unit and two ends point The traction unit not being connected with the gear unit and sheave, the gear unit includes what is be slidably connected with the supporting plate Sliding block, is fixedly installed on the hydraulic cylinder with inner chamber on the sliding block, is arranged on the piston in the hydraulic cylinder, and one end with The piston is fixedly connected, the other end passes through the hydraulic cylinder and is stretched out outside the hydraulic cylinder and is fixed company with the clamping unit The piston rod connect, the experimental rig also include tube chamber in be filled with hydraulic oil hydraulic tube, each hydraulic cylinder with it is described Hydraulic tube is connected and the inner chamber of the hydraulic cylinder is connected with the tube chamber of the hydraulic tube.
Preferably, the inner chamber of the hydraulic cylinder is separated into two chambers independent of each other, the hydraulic tube by the piston Tube chamber and two chambers in a chamber.
Preferably, the hydraulic tube includes multiple companies that hydraulic tube body section and one end are connected with each hydraulic cylinder respectively Section is connect, the other end of multiple linkage sections is connected with the hydraulic tube body section.
Preferably, the traction unit is draw bar, the both ends of the draw bar respectively with the sliding block and sheave It is hinged.
It is highly preferred that the supporting plate is horizontally disposed, the base includes base body and is vertically arranged in the base Support bar on body, the supporting plate is fixedly installed on the upper end of the support bar, and the sheave is located at the support Below plate and the sheave can move up and down along the length direction of the support bar, the upper end of the draw bar with it is described Sliding block is hinged, bottom is hinged with the sheave.
It is further preferred that offering chute along the glide direction of the sliding block in the supporting plate, the sliding block is slided It is arranged on dynamicly in the chute.
Preferably, the clamping unit includes the first holder, the second holder and fastener, and the test specimen is fixedly installed Between first holder and the second holder, the fastener sequentially passes through first holder and the second holder First holder and the second holder are fixedly connected, the piston rod and first holder or the second holder are solid Fixed connection.
Preferably, the experimental rig also includes the measuring mechanism for being used to measure hydraulic pressure in the hydraulic cylinder.
Preferably, the bindiny mechanism is at least provided with 4.
It is highly preferred that the bindiny mechanism is provided with 16.
Preferably, the multiple bindiny mechanism is evenly distributed in the supporting plate.
Due to the implementation of above-mentioned technical proposal, the utility model has the following advantages that compared with prior art:
It is of the present utility model to wait bidirectional tensile tester be automatically by hydraulic regulation each draw direction The uniformity of power, by the loading for realizing uniform power, it is to avoid the deformation of test specimen is uneven.
The bidirectional tensile tester such as of the present utility model is simple in construction, manufacturing cost is low, easy to operate, safe and reliable.
Brief description of the drawings
Fig. 1 is the front view of the bidirectional tensile tester such as of the present utility model;
Fig. 2 for Fig. 1 A-A to sectional view;
Fig. 3 is the stereogram of the bidirectional tensile tester such as of the present utility model;
Fig. 4 is the connecting tube of the bidirectional tensile tester such as of the present utility model, drainage tube, the installation diagram of endless tube;
Fig. 5 is the base of the bidirectional tensile tester such as of the present utility model and the installation diagram of supporting plate;
In figure:1st, base;1a, base body;1b, support bar;2nd, supporting plate;3rd, test specimen;4th, sheave;5th, sliding block;6、 Hydraulic cylinder;7th, piston;8th, piston rod;9th, hydraulic tube;9a, hydraulic tube body section;9b, linkage section;10th, draw bar;11st, chute; 12nd, the first holder;13rd, the second holder;14th, fastener;15th, drainage tube.
Embodiment
The utility model is further described with reference to Figure of description.
As shown in Fig. 1 ~ 5, the bidirectional tensile tester such as one kind, including base 1, it is fixedly installed on being used on base 1 The horizontal supporting plate 2 for placing test specimen 3 to be tested, the multiple bindiny mechanisms being connected with test specimen 3 and it is connected with multiple bindiny mechanisms Sheave 4, sheave 4 is circular sheave, and each bindiny mechanism includes clamping unit and the clamping list for clamping test specimen 3 The traction unit that the connected gear unit of member and two ends are connected with gear unit and sheave 4 respectively, gear unit includes and branch The sliding block 5 that fagging 2 is slidably connected, is fixedly installed on the hydraulic cylinder 6 with inner chamber on sliding block 5, is arranged on the work in hydraulic cylinder 6 Plug 7, and one end is fixedly connected with piston 7, the other end passes through hydraulic cylinder 6 and is stretched out outside hydraulic cylinder 6 and is fixed company with clamping unit The piston rod 8 connect, the experimental rig also include tube chamber in be filled with hydraulic oil hydraulic tube 9, each hydraulic cylinder 6 with hydraulic tube 9 It is connected and the inner chamber of hydraulic cylinder 6 is connected with the tube chamber of hydraulic tube 9.
The inner chamber of hydraulic cylinder 6 is separated into two chambers independent of each other, the tube chamber of hydraulic tube 9 and two chambers by piston 7 In a chamber, due to being filled with hydraulic oil in hydraulic tube 9, the chamber connected with hydraulic tube 9 of hydraulic cylinder 6 is naturally also Filled with hydraulic oil.In this example, it is multiple that hydraulic tube 9 includes that hydraulic tube body section 9a and one end be connected with each hydraulic cylinder 6 respectively Linkage section 9b, multiple linkage section 9b other end are connected with hydraulic pressure tube body 9a.With ground, linkage section 9b uses soft pipe, Hydraulic tube body section 9a uses metal material pipe and for ring pipe.
Traction unit is draw bar 10, and the both ends of draw bar 10 are hinged with sliding block 5 and sheave 4 respectively.
Clamping unit includes the first holder 12, the second holder 13 and fastener 14, and test specimen 3 is fixedly installed on the first folder Between the holder 13 of gripping member 12 and second, fastener 14 sequentially passes through the first holder 12 and the second holder 13 by the first clamping Part 12 is fixedly connected with the second holder 13, and piston rod 8 is fixedly connected with the first holder 12 or the second holder 13.This example In, the first holder 12 is located at the top of the second holder 13, and the second holder 13 includes installation portion, is vertically arranged in installation portion end The connecting portion in portion, test specimen 3 is located between installation portion and the first holder 12 and fastener 14 sequentially passes through the He of the first holder 12 First holder 12 is fixedly connected by installation portion with installation portion, and piston rod 7 is fixedly connected with connecting portion.
Base 1 includes the base body 1a and support bar 1b being vertically arranged on base body 1a, and supporting plate 2 is fixedly installed In support bar 1b upper end, sheave 4 is located at the lower section of supporting plate 2 and sheave 4 can be along along support bar 1b length direction Lower motion, upper end and the sliding block 5 of draw bar 10 are hinged, bottom and sheave 4 are hinged.The middle part of sheave 4 opens up through hole, Support bar 1b is located in through hole.
Bindiny mechanism is provided with bindiny mechanism at least four, this example and is provided with 16, and supporting plate 2 is circular slab, 16 companies Connection mechanism is evenly distributed on circular base slab 2.
Chute 11 is offered along the glide direction of sliding block 5 in supporting plate 2, sliding block 5 is slidably arranged in chute 11, carried out During tension test, sliding block 5 is always positioned in chute 11, specifically, and chute 11 opens up 16, the length extension side of 16 chutes 11 To the radial direction for circular base slab 2,16 chutes 11 are uniformly distributed on circular base slab 2.
In the utility model, experimental rig also includes the measuring mechanism for being used to measure hydraulic pressure in hydraulic cylinder 6, specifically, liquid Pressure pipe body section 9a is connected with drainage tube 15, and the tube chamber of drainage tube 15 is connected with hydraulic tube body section 9a tube chamber, measuring mechanism Hydraulic pressure in drainage tube 15 is measured, because the tube chamber of drainage tube 15 is connected with hydraulic tube body section 9a tube chamber, i.e. drainage tube 15 Tube chamber is connected with the tube chamber of whole hydraulic tube 9, and the tube chamber of hydraulic tube 9 is connected with one in two chambers of hydraulic cylinder 6, so, Hydraulic oil in hydraulic tube 9 can be flowed freely in hydraulic cylinder 6, hydraulic tube 9 and drainage tube 15, then hydraulic pressure is big in drainage tube 15 Small is the hydraulic pressure size of hydraulic cylinder 6.
The operation principle of the utility model experimental rig:
Test specimen 3 is selected and 16 apertures is offered on elastomeric material, test specimen 3, fastener 14 sequentially pass through the first holder 12, First holder 12 is fixedly connected by the aperture of test specimen 3 and the second holder 13 with the second holder 3, and test specimen 3 is fixed on the first folder Between the holder 13 of gripping member 12 and second, sliding block 5 is located in chute 11, and upper end and the sliding block 5 of draw bar 10 pass through rotary hinge Chain connection, bottom and sheave 4 are connected by rotary gemel, circumferential uniform difference of 16 chutes 11 along circular base slab 2 In supporting plate 2, slip is provided with 5,16 draw bars 10 of sliding block and is evenly distributed on supporting plate 2 and sheave in each chute 11 Between 4, when elastomeric material test specimen 3 carries out tension test, on the testing stand that base 1 is fixed to electronic universal tester, push away Dynamic sheave 4 is moved upwards along support bar 1b, drives the upper end of draw bar 10 to be turned out, driving sliding block 5 and hydraulic cylinder 6 to Center of circle direction away from circular base slab 2 is slided, and then drives the glide direction of piston rod 8 and clamping unit along sliding block 5 to move, Realize the stretcher strain of test specimen 3.
When sliding block 5 drives hydraulic cylinder 6 to move, piston 7 is had the trend detached from hydraulic cylinder 6 by the pulling force of test specimen 3, So that hydraulic pressure produces change in hydraulic cylinder 6, and because each hydraulic cylinder 6 is connected with hydraulic tube 9, and the inner chamber of hydraulic cylinder 6 with The tube chamber connection of hydraulic tube 9, so hydraulic pressure is identical in each hydraulic cylinder 6, hydraulic pressure change is naturally also consistent in each hydraulic cylinder 6 , so, it is also the same to the pulling force of test specimen 3 on each draw direction, can so ensures each stretching side of test specimen 3 well To the uniformity of power, it is to avoid the deformation of test specimen 3 is uneven.Meanwhile, hydraulic pressure value, the hydraulic pressure value in measuring mechanism test hydraulic tube It is also the hydraulic pressure value of hydraulic cylinder, the hydraulic pressure value can change into the change of each upper pulling force of piston 7, so as to reach measurement experiment During pulling force change.
The utility model is described in detail above, its object is to allow the personage for being familiar with this art can be much of that Solve content of the present utility model and be carried out, protection domain of the present utility model, and the utility model can not be limited with this The above embodiments are not limited to, all equivalent change or modifications made according to Spirit Essence of the present utility model should all cover Within protection domain of the present utility model.

Claims (10)

1. grade bidirectional tensile tester, including base, it is fixedly installed on being used on the base and places test specimen to be tested Supporting plate, the multiple bindiny mechanisms being connected with the test specimen and the sheave being connected with the multiple bindiny mechanism, it is each described Bindiny mechanism includes the clamping unit for test specimen described in clamping, the gear unit being connected with the clamping unit and two ends difference The traction unit being connected with the gear unit and sheave, it is characterised in that:The gear unit includes and the supporting plate The sliding block being slidably connected, is fixedly installed on the hydraulic cylinder with inner chamber on the sliding block, is arranged on the work in the hydraulic cylinder Plug, and one end is fixedly connected with the piston, the other end passes through the hydraulic cylinder and stretch out outside the hydraulic cylinder and with the dress The piston rod that folder unit is fixedly connected, the experimental rig also includes the hydraulic tube that hydraulic oil is filled with tube chamber, each liquid Cylinder pressure is connected with the hydraulic tube and the inner chamber of the hydraulic cylinder is connected with the tube chamber of the hydraulic tube.
2. according to claim 1 wait bidirectional tensile tester, it is characterised in that:The piston is by the hydraulic cylinder Inner chamber is separated into two chambers independent of each other, the tube chamber of the hydraulic tube and a chamber in two chambers.
3. according to claim 1 or 2 wait bidirectional tensile tester, it is characterised in that:The hydraulic tube includes hydraulic pressure Tube body section and multiple linkage sections for being connected respectively with each hydraulic cylinder of one end, the other end of multiple linkage sections is and institute Hydraulic tube body section is stated to be connected.
4. according to claim 1 wait bidirectional tensile tester, it is characterised in that:The traction unit is draw bar, The both ends of the draw bar are hinged with the sliding block and sheave respectively.
5. according to claim 4 wait bidirectional tensile tester, it is characterised in that:The supporting plate is horizontally disposed with, institute Stating base includes base body and the support bar being vertically arranged on the base body, and the supporting plate is fixedly installed on described The upper end of support bar, the sheave be located at the supporting plate below and the sheave can along the support bar length Direction is moved up and down, and the upper end of the draw bar is hinged with the sliding block, bottom is hinged with the sheave.
6. according to claim 5 wait bidirectional tensile tester, it is characterised in that:Along the sliding block in the supporting plate Glide direction offer chute, the sliding block is slidably arranged in the chute.
7. according to claim 1 wait bidirectional tensile tester, it is characterised in that:The clamping unit includes the first folder Gripping member, the second holder and fastener, the test specimen are fixedly installed between first holder and the second holder, described Fastener sequentially passes through first holder and the second holder and is fixedly connected with first holder and the second holder, The piston rod is fixedly connected with first holder or the second holder.
8. according to claim 1 wait bidirectional tensile tester, it is characterised in that:The experimental rig also includes being used for Measure the measuring mechanism of hydraulic pressure in the hydraulic cylinder.
9. according to claim 1 wait bidirectional tensile tester, it is characterised in that:The bindiny mechanism at least provided with 4.
10. wait bidirectional tensile tester according to claim 1 or 9, it is characterised in that:The multiple bindiny mechanism is equal It is even to be distributed in the supporting plate.
CN201621461897.9U 2016-12-29 2016-12-29 Deng bidirectional tensile tester Active CN206399742U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621461897.9U CN206399742U (en) 2016-12-29 2016-12-29 Deng bidirectional tensile tester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621461897.9U CN206399742U (en) 2016-12-29 2016-12-29 Deng bidirectional tensile tester

Publications (1)

Publication Number Publication Date
CN206399742U true CN206399742U (en) 2017-08-11

Family

ID=59517316

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621461897.9U Active CN206399742U (en) 2016-12-29 2016-12-29 Deng bidirectional tensile tester

Country Status (1)

Country Link
CN (1) CN206399742U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109632511A (en) * 2019-01-27 2019-04-16 贵州工程应用技术学院 A kind of rock mechanics imitative experimental appliance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109632511A (en) * 2019-01-27 2019-04-16 贵州工程应用技术学院 A kind of rock mechanics imitative experimental appliance

Similar Documents

Publication Publication Date Title
CN104912873B (en) A kind of lateral force loading device of the hydraulic cylinder of simulated condition
CN102419289B (en) Full-size complex load mechanical testing machine of petroleum pipe
CN101957293B (en) Combined loading expansion test device for entity expansion pipe
CN107515150B (en) Comprehensive test experimental device for mechanical properties of marine pipeline
CN206399742U (en) Deng bidirectional tensile tester
CN106525593A (en) Equal biaxial tensile test device
CN108106945A (en) A kind of non-homogeneous outer crowded load testing machine of casing and casing deformation computational methods
CN105241612A (en) Dynamic test device and method for thread sealing performance of oil pipe adapter
CN202383034U (en) Full-size combined load mechanical tester for oil pipes
CN206223541U (en) A kind of liquid crystal display universal testing machine
CN105692378B (en) A kind of elevator no-load coefficient of balance detection means based on hydraulic cylinder straight top type
CN106769426A (en) A kind of automatic clamping steel cable stretching force testing machine and its test method
CN207114315U (en) A kind of electronic product tension stress and the universal testing machine of mechanical strength
CN201803905U (en) Compound loading expansion test device for solid expansion pipe
CN105905720A (en) Elevator no-load balance coefficient detection device based on screw pulling-up
CN109205428B (en) Electrodeless rope type vertical shaft hoisting joint debugging test device and method
CN104458452B (en) A kind of compression stress relaxation experimental rig
CN205941167U (en) Single space fluid pressure type universal tester
CN205981933U (en) A device that is used for high temperature creep experiment of rubber elasticity body and stress relaxation experimental
CN205352856U (en) Realize direct tensile test device of rock sample
CN205562286U (en) Hoist girder test device
CN205958437U (en) Drawing test machine
CN2684185Y (en) Experimental bench for frictional factor between slide block and slideway
CN106836315A (en) A kind of vertical displacement detection means
CN210198870U (en) Novel tubular product that can pressurize test twists reverse yield test device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant