CN109520865A - A kind of guide wheel type compression shear test device - Google Patents

A kind of guide wheel type compression shear test device Download PDF

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Publication number
CN109520865A
CN109520865A CN201910075800.2A CN201910075800A CN109520865A CN 109520865 A CN109520865 A CN 109520865A CN 201910075800 A CN201910075800 A CN 201910075800A CN 109520865 A CN109520865 A CN 109520865A
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CN
China
Prior art keywords
platen
shear plate
plate
shear
vertical
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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.)
Withdrawn
Application number
CN201910075800.2A
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Chinese (zh)
Inventor
邵景干
吴跟上
张勇
游江涛
邵晓广
张丽娟
刘志勇
王淑霞
朱峰
胡勇
张钰霖
吕明泽
尚廷东
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Henan Vocational and Technical College of Communications
Henan Jiaoyuan Engineering Technology Co Ltd
Original Assignee
Henan Jiao Yuan Engineering Technology Co Ltd
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Application filed by Henan Jiao Yuan Engineering Technology Co Ltd filed Critical Henan Jiao Yuan Engineering Technology Co Ltd
Priority to CN201910075800.2A priority Critical patent/CN109520865A/en
Publication of CN109520865A publication Critical patent/CN109520865A/en
Withdrawn legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/24Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014Type of force applied
    • G01N2203/0026Combination of several types of applied forces

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The present invention relates to a kind of guide wheel type compression shear test devices, including vertical loading mechanism, shear plate and the horizontal addload mechanism for applying horizontal force in left-right direction to the shear plate, vertical loading mechanism includes vertical Load test framework, the lower platen being used cooperatively with shear plate and the vertical force for applying vertical load to the lower platen load cylinder, vertical Load test framework includes the guide upright post with lower platen front and rear sides respectively, the guide wheel group being correspondingly arranged with each guide upright post is provided on lower platen, two directive wheels of each guide wheel group, which are located at the left and right sides of corresponding guide upright post and roll with corresponding guide upright post, to be cooperated.The present invention provides the guide wheel type compression shear test devices that one kind can reduce frictional force between the cylinder body and piston of vertical force load cylinder.

Description

A kind of guide wheel type compression shear test device
Technical field
The present invention relates to a kind of for carrying out the guide wheel type compression shear test device of compression-shear test to rubber support.
Background technique
Pressure-shear test machine is mainly used for the compound bar that different types of rridges are board-like, pot rubber bearing carries out resistance to compression, anti-shearing force Under part, the axial-radial resistance to compression, shearing resistance, corner mechanical test of rubber support are detected.It can carry out the compression elasticity mould of rubber support Amount, shear modulus allow the angle of shear, the mechanical property tests such as coefficient of friction and compressive ultimate strength.
Existing hydraulic pressure-shear test machine is as shown in Figure 1, the pressure-shear test machine includes vertical loading mechanism and horizontal addload Mechanism, vertical loading mechanism include vertical load bracket, and the vertical bracket that loads includes pedestal, stand 5 and crossbeam 4, on pedestal It is provided with vertical force load cylinder 6, is fixed with lower platen 7 on the piston rod of vertical force load cylinder, horizontal addload mechanism includes along a left side The guide rail 1 of right direction arrangement, guiding movement is equipped with load trolley 2 on guide rail, loads and is provided with horizontal addload cylinder on trolley 2, Shear plate 9 is connected on horizontal addload cylinder.
When needing to carry out anti-shearing force test to rubber support, two rubber supports 8 are respectively placed in the upper of shear plate 9 It is vertical to load cylinder to the vertical loading force of rubber support application to simulate bridge weight between lower face and crossbeam 4 and lower platen 7, it loads The counter-force portion 3 of small roof is against on crossbeam and using crossbeam as reaction frame, applies pulling force, shearing to shear plate by horizontal addload cylinder Plate shears two rubber supports of upper and lower sides, to simulate the shearing of the afforded bridge of the rubber support in seismic environment Active force.The anti-shear performance of rubber support is tested in this way, and existing this hydraulic pressure-shear test machine has problems in that: When vertical force load cylinder vertically loads, shear plate applies horizontal direction shearing force to rubber support, and rubber support also can be to pushing Plate and then one horizontal direction active force of piston rod that cylinder is loaded to vertical force, vertical force loads the piston of cylinder and vertical force loads Biggish frictional force is generated between the cylinder body of cylinder, which will affect the accuracy that vertical load cylinder exports vertical loading force, Abrasion between piston rod and cylinder body can also be aggravated simultaneously, the service life for having reduced load cylinder vertical.
Summary of the invention
The purpose of the present invention is to provide one kind can reduce frictional force between the cylinder body and piston rod of vertical force load cylinder Guide wheel type compression shear test device.
In order to solve the above technical problems, the technical solution in the present invention is as follows:
A kind of guide wheel type compression shear test device, including vertical loading mechanism, shear plate and to the shear plate apply along left and right The horizontal addload mechanism of direction horizontal force, vertical loading mechanism include the pushing that vertical Load test framework and shear plate are used cooperatively Plate and for the lower platen apply vertical load vertical force load cylinder, vertical Load test framework include respectively and before lower platen The guide upright post of two sides afterwards is provided with the guide wheel group being correspondingly arranged with each guide upright post on lower platen, each guide wheel group Two directive wheels, which are located at the left and right sides of corresponding guide upright post and roll with corresponding guide upright post, to be cooperated.
Directive wheel has the annular recess for realizing and being adapted to corresponding guide upright post and rolling cooperation.
There are two guide upright posts, and two guide upright posts are symmetrically arranged in the front and rear sides of lower platen.
Vertical loading mechanism further includes the top board on the upside of shear plate, and horizontal addload mechanism includes prolonging in left-right direction The guide rail stretched, guiding movement is equipped with load trolley on guide rail, and load trolley has for supporting with the vertical load top of support The counter-force portion of cooperation loads and is provided with horizontal force load cylinder on trolley, is rotatably equipped with pivot center along upper on the top board The top board platen that lower direction extends is rotatably equipped with the pushing disc plate pressure that pivot center vertically extends on lower platen, The upper end rotation of shear plate, which is provided with, carries out cutting for shearing test for cooperating with top board platen with the rubber support to upside Platen on cutting plate, the lower end rotation of shear plate, which is provided with, is cut for cooperating with pushing disc plate pressure with the rubber support to downside The shear plate pressing disc of test is cut, platen, shear plate pressing disc and pushing disc plate pressure coaxial line are set on top board platen, shear plate It sets, platen, shear plate pressing disc and pushing disc plate pressure have the first of angle of rotation difference 180 degree on top board platen, shear plate Station and second station.
The invention has the benefit that in use, horizontal addload mechanism applies horizontal direction load, shear plate to shear plate Shearing force is applied to the rubber support between shear plate and lower platen, under the active force of rubber support, lower platen has certain Mobile trend, contacted by the directive wheel on lower platen with guide upright post to avoid more horizontal forces suffered by piston rod, Corresponding two directive wheels are located at the left and right sides of corresponding guide upright post, avoid piston rod and vertical force load cylinder cylinder body it Between have larger normal pressure and frictional force is larger, at this time if piston rod continues to stretch out acting, directive wheel and guide upright post it Between be rolling friction, also significantly reduce vertical force for the sliding friction between piston rod and cylinder body compared to the prior art and add Carry resistance suffered by cylinder.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of background technique in the present invention;
Fig. 2 is the structural schematic diagram of one embodiment of the present of invention;
Fig. 3 is the cooperation schematic diagram of lower platen and rubber support in the present invention;
Fig. 4 is top board platen in the present invention, platen, shear plate pressing disc and the cooperation signal for pushing disc plate pressure on shear plate Figure;
Fig. 5 is the structural schematic diagram of horizontal displacement buffer gear in the present invention.
Specific embodiment
A kind of implementation of guide wheel type compression shear test device is for example shown in Fig. 2 ~ 5: including vertical loading mechanism and it is horizontal plus Mounted mechanism, vertical loading mechanism include vertical load bracket 23, and the vertical bracket 23 that loads includes two guide upright posts 6 and is set to Crossbeam 5 on guide upright post, two guide upright post time interval arrangements, the lower end of crossbeam is provided with top board 14, top board 14 Downside be provided with lower platen 26, the front and rear sides of lower platen are symmetrically assembled there are two guide wheel group, and each guide wheel group is wrapped The directive wheel 25 at left and right sides of corresponding guide upright post is included, the axis of directive wheel 25 is perpendicular to up and down direction, in the present embodiment The axis of middle directive wheel extends along the longitudinal direction.The wheel face of each directive wheel 25, which has to be adapted to guiding with corresponding guide upright post and roll, matches The annular recess 25-1 of conjunction.It is provided with intermediate force transmitting board 27 on the downside of lower platen, is arranged between intermediate force transmitting board 27 and lower platen There is horizontal displacement buffer gear, the downside of intermediate force transmitting board 27 is provided with vertical force load cylinder, and intermediate force transmitting board 27 is fixed on perpendicular To on the piston rod of power load cylinder 28.
In the present embodiment, horizontal displacement buffer gear includes the upper bulb 29 being fixedly connected with lower platen 26 and passes with centre The lower bulb 31 that power plate 27 is fixedly connected, upper bulb 29, lower bulb 31 periphery be arranged with intermediate power transmission set 30, intermediate power transmission set Inner hole upper end be the upper ball groove 33 cooperated with upper bulb sphere-contact, the inner hole lower end of intermediate power transmission set is and lower bulb spherical surface The lower ball groove 32 being engaged.Horizontal addload mechanism includes the guide rail 1 extended in left-right direction, and guiding movement is equipped on guide rail Loading trolley 2, load trolley 2 has for the counter-force portion 4 with vertical load 23 contact of bracket cooperation, in the present embodiment, counter-force 4 contact of portion loads on the vertically crossbeam 5 of load bracket and is provided with horizontal force load cylinder 3 on trolley, and horizontal force loads on cylinder 3 The specific connection relationship of the shear plate 7 being connected between top board 14 and lower platen 26, horizontal addload cylinder and shear plate is, It is provided with the connection pin shaft being vertically arranged on horizontal addload cylinder, the pin shaft connected with pin shaft is connect is provided on shear plate and is connected Connect hole, the height for connecting pin shaft is higher than the height of pin shaft connecting hole, therefore shear plate can opposite connection pin shaft move up and down, with to The connection relationship of the rubber support transmitting pressure of upside, horizontal addload cylinder and shear plate belongs to the prior art.In use, horizontal add Cylinder is carried by pulling shear plate to transmit shearing force to rubber support, due to the presence of mismatch error, directive wheel 25 and guiding are vertical There can be certain crash amount between column, therefore when horizontal addload cylinder pulls shear plate, lower platen can be generated in range by a small margin Move to right, moving range is substantially within 2mm, by the presence of horizontal displacement buffer gear, has then buffered the displacement well Impact to vertical force load cylinder, for lower platen with upper bulb 29 towards right translation, intermediate power transmission covers the movement adjustment of 30 adaptability, This displacement will not be applied on intermediate force transmitting board, therefore the piston rod of vertical force load cylinder not will receive horizontal applied force, and one Aspect can be damaged by horizontal applied force for a long time to avoid piston, can be to rubber in addition it can guarantee vertically to load cylinder Glue support exports accurate vertical loading force and will definitely increase work because if this horizontal applied force is applied on piston rod Frictional force between stopper rod and the cylinder body of vertical load cylinder, the frictional force just will affect vertical load cylinder and exports vertical loading force Accuracy.Even if existing since the contact of directive wheel and guide upright post acts on, also without the presence of horizontal displacement buffer gear Reduce the horizontal pressure force between the piston rod and cylinder body of vertical force load cylinder, reduces the frictional force between the two, there is level The presence of displacement buffering mechanism, the horizontal direction pressure between piston rod and cylinder body is almost nil, can ignore.
It is rotatably equipped with the top board platen 13 that pivot center vertically extends on top board 14, turns on lower platen 26 It is dynamic to be equipped with the pushing disc plate pressure 36 that pivot center vertically extends, the upper end rotation of shear plate be provided with for upper pressure Disc plate pressure cooperation carries out platen 19 on the shear plate of shearing test with the rubber support to upside, and the lower end of shear plate rotates setting There are the shear plate pressing disc 9 for carrying out shearing test with the rubber support to downside with pushing disc plate pressure cooperation, top board pressure Platen 19, shear plate pressing disc 9 and pushing disc plate pressure 36 are coaxially set on disk 13, shear plate, on top board platen, shear plate Platen, shear plate pressing disc and pushing disc plate pressure have the first station and second station of angle of rotation difference 180 degree.In this implementation In example: being provided with realization on shear plate between platen and shear plate for platen on shear plate and be fixed on the first station and second station Upper platen fixing bolt 10;Be provided between shear plate pressing disc and shear plate realization by shear plate be fixed on the first station and The pressing disc fixing bolt 37 of second station.
It is provided with one on lower end surface on top board platen and extends radially to top board platen periphery along top board platen The top board platen mounting groove 17 in face, on the lower end surface of top board setting there are two in 180 degree distribution for individually with upper pressure The top board mounting groove 16 that disc plate pressure mounting groove is used cooperatively, be hinged on top board platen positioned at top board platen mounting groove with Top board platen is limited in the upper limit bar 15 of corresponding station, the articulated shaft of upper limit bar 15 in corresponding top board mounting groove Line is perpendicular to up and down direction.It is provided on the upper surface of platen on shear plate after being produced for upper limit bar by top board mounting groove There is the upper limit bar for hand-held force to hold force section for the upper limit bar card slot 18 being caught in, the middle part of upper limit bar.The upper limit The outer end of position bar protrudes from top board, after upper limit bar turns on upper limit card slot far from one end of top board platen, the upper limit The circumferential two sides of position bar and the respective side cell wall of upper limit card slot are engaged, on shear plate of dismantling between platen and shear plate The first fixing bolt of shear plate, staff can hold the middle part of upper limit bar, to drive platen on shear plate, top board Platen rotates synchronously, and after rotating 180 degree, upper limit bar can be flipped back to top board platen mounting groove and another top board In mounting groove, top board platen is limited in second station by upper limit bar at this time, will be sheared by the first fixing bolt of shear plate Platen is fixed on shear plate on plate.
It is provided with one on upper surface on pushing disc plate pressure and extends radially to push disc plate pressure periphery along disc plate pressure is pushed The pushing disc plate pressure mounting groove 35 in face, on the upper surface of lower platen setting there are two in 180 degree distribution for individually with pushing The lower platen mounting groove 24 that disc plate pressure mounting groove is used cooperatively, push disc plate pressure on be hinged be located at push disc plate pressure mounting groove with The lower limit bar 22 that disc plate pressure is limited in corresponding station, the articulated shaft of lower limit bar 22 will be pushed in corresponding lower platen mounting groove Line is perpendicular to up and down direction.It is provided on the upper surface of shear plate pressing disc after being produced for lower limit bar by lower platen mounting groove There is the lower limit bar for hand-held force to hold force section for the lower limit bar card slot 20 being caught in, the middle part of lower limit bar.Lower limit The outer end of position bar protrudes from lower platen, after lower limit bar turns on lower limit card slot far from the one end for pushing disc plate pressure, lower limit The circumferential two sides of position bar and the respective side cell wall of lower limit card slot are engaged, and dismantle between shear plate pressing disc and shear plate The second fixing bolt of shear plate 37, staff can hold the middle part of lower limit bar, come drive shear plate pressing disc, push Disc plate pressure rotates synchronously, and after rotating 180 degree, lower limit bar can be flipped back to and push disc plate pressure mounting groove and another pushing In plate mounting groove, lower limit bar is limited in second station for disc plate pressure is pushed at this time, will be cut by the second fixing bolt of shear plate Cutting plate pressing disc is fixed on shear plate.
In use, respectively on top board platen and shear plate between platen, shear plate pressing disc and push disc plate pressure it Between place rubber support, when testing for the first time, platen on top board platen, shear plate, shear plate pressing disc and push at disc plate pressure In the first station, top board platen, not being able to rotate for pushing disc plate pressure are realized by upper limit bar and lower limit bar respectively, shearing Platen, not being able to rotate for shear plate pressing disc then fix spiral shell by the first fixing bolt of shear plate and shear plate second respectively on plate Bolt is realized, in the present embodiment, there are two the first fixing bolt of shear plate, the second fixing bolt of shear plate are equal, and two shear plates the One fixing bolt is spaced apart in 180, and two the second fixing bolts of shear plate are spaced apart in 180 degree;Horizontal force loads cylinder and draws Shear plate is dragged, loads the counter-force portion contact of trolley on vertically load bracket, the vertical counter-force for loading bracket and constituting load trolley Frame, shear plate apply to corresponding rubber support towards the horizontal direction in right direction with platen on shear plate and shear plate pressing disc Shearing force is realized to the shearing test on one direction of rubber support, and after the test, horizontal force loads cylinder unloading, downwards Overturn upper limit bar, be flipped up upper limit bar, the lower end of upper limit bar snaps onto upper limit bar card slot, lower limit bar it is upper End snaps onto lower limit bar card slot, and corresponding fixing bolt of dismantling, staff can hold the middle part of corresponding gag lever post, just It is the same (gag lever post of vertical state is represented by dashed line in Fig. 2, Fig. 4) to stone of turning a millstone, it will be pressed on top board platen, shear plate It disk, shear plate pressing disc and pushes disc plate pressure and rotates 180 degree to second station, then withdraw upper limit bar, lower limit bar, Fixing bolt is retightened, platen, shear plate pressing disc and the drive for pushing disc plate pressure on top board platen, shear plate Under, rubber support rotates 180 degree, then loads cylinder by horizontal force and apply drag force to shear plate, although testing horizontal force twice The loading direction of cylinder is loaded there is no changing, but since rubber support itself has rotated 180 degree, rubber support is twice Suffered shearing force is contrary, realizes to the biaxial loadings in rubber support horizontal direction, is closer to really Shake environment.In other embodiments of the invention: top board platen, the working position fixation for pushing disc plate pressure can also pass through bolt To realize;It counter-force portion can also be with contact on the vertically guide upright post of load bracket.

Claims (4)

1. a kind of guide wheel type compression shear test device, including vertical loading mechanism, shear plate and apply to the shear plate along a left side The horizontal addload mechanism of right direction horizontal force, vertical loading mechanism include that vertical Load test framework and shear plate are used cooperatively down Pressing plate and vertical force for applying from vertical load to the lower platen load cylinder, it is characterised in that: vertical Load test framework includes Respectively with the guide upright post of lower platen front and rear sides, the guide wheel group being correspondingly arranged with each guide upright post is provided on lower platen, Two directive wheels of each guide wheel group are located at the left and right sides of corresponding guide upright post and match with the rolling of corresponding guide upright post It closes.
2. guide wheel type compression shear test device according to claim 1, it is characterised in that: directive wheel have realize with it is corresponding Guide upright post adaptation rolls the annular recess of cooperation.
3. guide wheel type compression shear test device according to claim 1, it is characterised in that: there are two guide upright posts, and two Guide upright post is symmetrically arranged in the front and rear sides of lower platen.
4. guide wheel type compression shear test device according to claim 1, it is characterised in that: vertical loading mechanism further includes position Top board on the upside of shear plate, horizontal addload mechanism include the guide rail extended in left-right direction, and guiding movement assembles on guide rail There is load trolley, load trolley has the counter-force portion for supporting cooperation with the vertical load top of support, loads and be arranged on trolley There is horizontal force to load cylinder, be rotatably equipped with the top board platen that pivot center vertically extends on the top board, pushes Be rotatably equipped with the pushing disc plate pressure that pivot center vertically extends on plate, the upper end rotation of shear plate be provided with for The cooperation of top board platen carries out platen on the shear plate of shearing test with the rubber support to upside, and the lower end rotation of shear plate is set It is equipped with the shear plate pressing disc for carrying out shearing test with the rubber support to downside with pushing disc plate pressure cooperation, top board pressure It platen on disk, shear plate, shear plate pressing disc and pushes disc plate pressure and is coaxially set, platen on top board platen, shear plate is cut Cutting plate pressing disc and pushing disc plate pressure have the first station and second station of angle of rotation difference 180 degree.
CN201910075800.2A 2019-01-25 2019-01-25 A kind of guide wheel type compression shear test device Withdrawn CN109520865A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110220795A (en) * 2019-06-17 2019-09-10 河南交通职业技术学院 A kind of pressure testing machine
CN113945475A (en) * 2021-10-27 2022-01-18 济南邦威仪器有限公司 Antifriction material test device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102879276A (en) * 2012-09-21 2013-01-16 长安大学 Integrated asphaltic mixture performance detection device
CN202994598U (en) * 2012-12-31 2013-06-12 济南天辰试验机制造有限公司 Microcomputer-controlled electro-hydraulic servo pressure shear tester
CN103512740A (en) * 2013-09-27 2014-01-15 中交公路长大桥建设国家工程研究中心有限公司 Device for carrying out static-dynamic force multifunction testing on support
CN205483843U (en) * 2015-12-02 2016-08-17 上海筑邦测控科技有限公司 Loading testing system who can be used to civil engineering structure
CN209446408U (en) * 2019-01-25 2019-09-27 河南交通职业技术学院 Guide wheel type compression shear test device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102879276A (en) * 2012-09-21 2013-01-16 长安大学 Integrated asphaltic mixture performance detection device
CN202994598U (en) * 2012-12-31 2013-06-12 济南天辰试验机制造有限公司 Microcomputer-controlled electro-hydraulic servo pressure shear tester
CN103512740A (en) * 2013-09-27 2014-01-15 中交公路长大桥建设国家工程研究中心有限公司 Device for carrying out static-dynamic force multifunction testing on support
CN205483843U (en) * 2015-12-02 2016-08-17 上海筑邦测控科技有限公司 Loading testing system who can be used to civil engineering structure
CN209446408U (en) * 2019-01-25 2019-09-27 河南交通职业技术学院 Guide wheel type compression shear test device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110220795A (en) * 2019-06-17 2019-09-10 河南交通职业技术学院 A kind of pressure testing machine
CN110220795B (en) * 2019-06-17 2024-05-03 河南交通职业技术学院 Pressure testing machine
CN113945475A (en) * 2021-10-27 2022-01-18 济南邦威仪器有限公司 Antifriction material test device

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Effective date of registration: 20190322

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Application publication date: 20190326