CN206740349U - A kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics - Google Patents
A kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics Download PDFInfo
- Publication number
- CN206740349U CN206740349U CN201720500396.5U CN201720500396U CN206740349U CN 206740349 U CN206740349 U CN 206740349U CN 201720500396 U CN201720500396 U CN 201720500396U CN 206740349 U CN206740349 U CN 206740349U
- Authority
- CN
- China
- Prior art keywords
- electromagnet
- pendulum
- plummer
- fixedly connected
- experimental rig
- 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.)
- Expired - Fee Related
Links
Abstract
A kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics of the utility model, mainly be made up of optical flat, electromagnet plummer, sensor plummer, T stage, pendulum, pendulum support, sucker electromagnet fixed disk, upper clamping block, support shaft, electromagnet, pressure sensor, bearing, oscillating rod, floor, sucker electromagnet, magnetic-particle, be the characteristics of the utility model the experimental rig simple in construction, small volume, be readily disassembled it is mobile, economical and practical；Measuring cell installation is easy to connect, is easy to measure；The shock loading of different amplitudes can be simulated；The magnetic-particle of replaceable different geometrical size and the arrangement mode for changing magnetic-particle；Can analog magnetic field environment and by change different size electromagnet adjust magnetic field environment power；The device provides important experimental test platform to study the crash characteristics of one-dimensional magnetic particle chain.
Description
Technical field
It the utility model is related to a kind of experimental rig, and in particular to one kind test one-dimensional magnetic particle chain crash characteristics
Experimental rig.
Background technology
Shock loading is a kind of common dynamic load, and the damage and fracture of structure may be caused under its incentive action,
The stability of mechanical structure is influenceed, production and living are damaged.Exploitation shock resistance buffer system is always Structural Dynamics neck
The study hotspot in domain.In recent years, particle system is as a kind of typical energy-absorbing protection medium, by more and more extensive concern,
It has the advantages that compact-sized, install convenient, buffering energy-absorbing positive effect.One-dimensional particle catenary system is simplest particle system
System, it is decayed shock loading by intergranular interaction, reaches the purpose of buffering energy-absorbing, vibration damping and vibration isolation.
The magnetic-particle chain being placed under magnetic field environment has good field response shock resistance special compared with nonmagnetic particle chain
Property.By changing magnetic field intensity, the crash characteristics of one-dimensional magnetic particle chain will change therewith, belong to intelligent buffer structure.
Domestic and foreign scholars have carried out preliminary theoretical calculation and simulation analysis, but there is not yet experimental study to problems.Build one kind
The experimental rig of one-dimensional magnetic particle chain crash characteristics is tested, the ballistics that can effectively assess magnetic-particle catenary system is special
Property and energy dissipation mechanism, research granule geometric dimension, arrangement mode and magnetic field intensity are to magnetic-particle chain shock resistance mechanical property
The affecting laws of energy, provided fundamental basis for the design and optimization of particle chain crash energy absorption equipment.
The content of the invention
To solve the above problems, the purpose of this utility model is to provide a kind of test one-dimensional magnetic particle chain ballistics spy
Property experimental rig, its for research magnetic-particle chain crash characteristics and disclose its buffering energy-consumption mechanism, there is provided it is important
Experimental test platform.
To achieve these goals, a kind of experiment dress for testing one-dimensional magnetic particle chain crash characteristics of the utility model
Put, mainly consolidated by optical flat, electromagnet plummer, sensor plummer, T stage, pendulum, pendulum support, sucker electromagnet
Price fixing, upper clamping block, support shaft, electromagnet, pressure sensor, bearing, oscillating rod, floor, sucker electromagnet, magnetic-particle group
Into, it is characterised in that：The optical flat is horizontal positioned；Pendulum support is arranged on the rightmost side of optical flat, pendulum support with
Optical flat is fixedly connected；Floor is fixedly connected with pendulum support, and floor is fixedly connected with optical flat；T stage and pendulum branch
Frame is abutted, and the right side of T stage is concordant with the center line of pendulum support, and T stage is fixedly connected with optical flat；Sensor is held
Microscope carrier is arranged on the rear side of T stage, and sensor plummer is fixedly connected with optical flat；Pressure sensor and sensor plummer
It is fixedly connected；Electromagnet plummer is arranged on the rear side of sensor plummer, and electromagnet plummer is fixedly connected with optical flat；
Electromagnet is fixedly connected with electromagnet plummer；Sucker electromagnet fixed disk is fixedly connected with pendulum support；Sucker electromagnet with
Sucker electromagnet fixed disk is fixedly connected；Bearing is by being interference fitted in the bearing saddle bore of pendulum support；Support shaft with
Bearing is connected by interference fits, and one end of support shaft is fixedly connected with pendulum, upper clamping block, and the side of pendulum and upper clamping block
The shaft shoulder of face and support shaft is abutted, and the other end of support shaft is stretched out outside pendulum support and sucker electromagnet fixed disk, with oscillating rod
It is fixedly connected；Magnetic-particle is placed in the V-groove on T stage top.
Among the electromagnet plummer and bottom is provided with screwed hole.
Among the sensor plummer and bottom is provided with screwed hole and side is provided with square groove, and its section is T-shaped.
The T stage upper end is provided with V-groove, bottom is provided with screwed hole, and its section is T-shaped.
The pendulum is the solid step axle that upper end is provided with Baltimore groove.
The pendulum support is provided with the plate structure of bearing saddle bore and screwed hole.
The sucker electromagnet fixed disk is provided with the disc-shaped structure of screwed hole.
The upper clamping block lower end is provided with Baltimore groove.
The support shaft is side rectangular cross-section and another lateral section is circular solid shafting.
The oscillating rod is the solid shafting that upper end is provided with circular groove.
The floor is the plate structure that side is provided with location and installation hole.
The optical flat is standard component purchased in market, The concrete specification according to electromagnet plummer, sensor plummer, T stage,
Depending on the size of floor and pendulum support, its function is for fixed electromagnet plummer, sensor plummer, T stage, floor
And pendulum support, provide horizontal location benchmark for a whole set of experimental rig.
The electromagnet plummer is made using aluminium alloy or the material of other high intensity and low permeability, specific size root
Depending on the specification and size of electromagnet, its function is fixed electromagnet.
The sensor plummer upper screwed hole is used for fixation pressure sensor, and square groove is used to draw pressure sensor thereon
Data wire, made using T4 pure iron or the material of other strong height and high permeability, specific size is according to pressure sensor
Depending on specification and size, its function is fixation pressure sensor.
The T stage is made using the material of aluminium alloy or other low permeabilities, and specific size is according to the chi of magnetic-particle
Depending on very little and quantity, its function is support magnetic-particle.
The material of the pendulum selection aluminium alloy or other low permeabilities makes, and is self-made components, specific size is according to impact
Depending on the amplitude of driving source and the size of magnetic-particle, its function is the source excited by impact as magnetic-particle chain.
The pendulum support selection aluminium alloy or the material of other high intensity and low permeability make, and are self-made components, specifically
For size depending on bob size, its function is fixed pendulum and sucker electromagnet fixed disk.
The sucker electromagnet fixed disk selection aluminium alloy or the material of other high intensity and low permeability make, specific chi
It is very little depending on the amplitude in source excited by impact and the size of sucker electromagnet, its function is fixing sucking disk electromagnet.
The upper clamping block selection aluminium alloy or the material of other high intensity and low permeability make, and specific size is according to branch
Depending on the size for supportting axle and pendulum, its function is fixed pendulum.
Support shaft selection aluminium alloy or the material of other high intensity and low permeability make, and are self-made components, its function
It is fixed upper clamping block, pendulum and oscillating rod.
The electromagnet is part purchased in market, and for concrete model depending on the magnetic field intensity for needing analog magnetic field, its function is conduct
Magnetic field excitation source.
The pressure sensor is part purchased in market, concrete model according to the impact force response amplitude and frequency of magnetic-particle and
Fixed, its function is to test the impact force response of magnetic-particle.
The bearing is standard component purchased in market, and for concrete model depending on the size of support shaft, its function is that support shaft is risen
Supporting role.
The oscillating rod is made from the material of T4 pure iron or other high permeabilities, is self-made components, and its function is control pendulum
The motion state of hammer.
The floor is made from aluminium alloy or the material of other high intensity and low permeability, is self-made components, its function is
Support pendulum support.
The sucker electromagnet is part purchased in market, and for concrete model depending on the quality of oscillating rod, its function is that control is swung
The motion state of bar.
The magnetic-particle is part purchased in market, and specific size is depending on test requirements document.
Workflow of the present utility model is as follows：
According to the requirement of source amplitude excited by impact, the sucker electromagnet at corresponding height is powered, goes to oscillating rod to
The sucker electromagnet opening position of energization, oscillating rod is set to attract to connect with sucker electromagnet；Electromagnet is powered, stabilization to be formed
Behind magnetic field, a number of magnetic-particle is placed in the V-groove of T stage upper end, forms one-dimensional magnetic particle chain；Disconnect sucker
The power supply of electromagnet, oscillating rod attract because losing magnetic force, free-falling under gravity；Because oscillating rod is coaxial with pendulum
It is fixedly connected, therefore pendulum also free-falling；When bob motion is to vertical position, its potential energy having as impact energy,
Hit one-dimensional magnetic field particle chain；Dynamic mechanical when pressure sensor record shock wave reaches one-dimensional magnetic particle chain tail end rings
Should.
The utility model " a kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics ", its advantage is as follows：
（1）Simple in construction, small volume, it is readily disassembled movement, is economical and practical.
（2）Measuring cell installation is easy to connect, is easy to measure.
（3）The shock loading of different amplitudes can be simulated.
（4）The magnetic-particle of replaceable different geometrical size and the arrangement mode for changing magnetic-particle.
（5）Can analog magnetic field environment and by change different size electromagnet adjust magnetic field environment power.
In a word, the device provides important experimental test for the crash characteristics of research one-dimensional magnetic particle chain and put down
Platform, it can effectively assess the crash characteristics and energy dissipation mechanism of magnetic-particle catenary system, research granule geometric dimension, arrangement
Mode and magnetic field intensity are the design of particle chain crash energy absorption equipment to the affecting laws of magnetic-particle chain shock resistance mechanical property
Provided fundamental basis with optimization.
Brief description of the drawings
Fig. 1 is that a kind of experimental rig structure for testing one-dimensional magnetic particle chain crash characteristics of the utility model is faced
Figure；
Fig. 2 is a kind of solid for the experimental rig structure for testing one-dimensional magnetic particle chain crash characteristics of the utility model
Schematic diagram；
Fig. 3 is the three-dimensional signal for the experimental rig structure that the utility model tests one-dimensional magnetic particle chain crash characteristics
Figure.
1st, optical flat；2nd, electromagnet plummer；3rd, sensor plummer；4th, T stage；5th, pendulum；6th, pendulum support；7、
Sucker electromagnet fixed disk；8th, upper clamping block；9th, support shaft；10th, electromagnet；11st, pressure sensor；12nd, bearing；13rd, swing
Bar；14th, floor；15th, sucker electromagnet, 16, magnetic-particle.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings：
As illustrated, a kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics of the utility model, mainly
By optical flat 1, electromagnet plummer 2, sensor plummer 3, T stage 4, pendulum 5, pendulum support 6, sucker electromagnetism ferropexy
Disk 7, upper clamping block 8, support shaft 9, electromagnet 10, pressure sensor 11, bearing 12, oscillating rod 13, floor 14, sucker electromagnet
15th, magnetic-particle 16 forms.It is characterized in that：The optical flat 1 is horizontal positioned；Pendulum support 6 is arranged on optical flat 1
The rightmost side, pendulum support 6 are fixedly connected with optical flat 1；Floor 14 is fixedly connected with pendulum support 6, and floor 14 is put down with optics
Plate 1 is fixedly connected；T stage 4 abuts with pendulum support 6, and the right side of T stage 4 is concordant with the center line of pendulum support 6, T-shaped
Platform 4 is fixedly connected with optical flat 1；Sensor plummer 3 is arranged on the rear side of T stage 4, and sensor plummer 3 is put down with optics
Plate 1 is fixedly connected；Pressure sensor 11 is fixedly connected with sensor plummer 3；Electromagnet plummer 2 is arranged on sensor carrying
The rear side of platform 3, electromagnet plummer 2 are fixedly connected with optical flat 1；Electromagnet 10 is fixedly connected with electromagnet plummer 2；Inhale
Disk electromagnet fixed disk 7 is fixedly connected with pendulum support 6；Sucker electromagnet 15 is fixedly connected with sucker electromagnet fixed disk 7；Axle
12 are held by being interference fitted in the bearing saddle bore of pendulum support 6；Support shaft 9 is connected with bearing 12 by interference fits,
One end of support shaft 9 is fixedly connected with pendulum 5, upper clamping block 8, and pendulum 5 and the side of upper clamping block 8 and the axle of support shaft 9
Shoulder is abutted, and the other end of support shaft 9 is stretched out outside pendulum support 6 and sucker electromagnet fixed disk 7, is fixedly connected with oscillating rod 13；
Magnetic-particle 16 is placed in the V-groove on the top of T stage 4.
The optical flat 1 is standard component purchased in market, and The concrete specification is according to electromagnet plummer 2, sensor plummer 3, T-shaped
Depending on the size of platform 4, floor 14 and pendulum support 6, its function is for fixed electromagnet plummer 2, sensor plummer 3, T
Type platform 4, floor 14 and pendulum support 6, horizontal location benchmark is provided for a whole set of experimental rig.
The electromagnet plummer 2 is the self-made components that middle and bottom is provided with screwed hole, using aluminium alloy or other high-strength
The material of degree and low permeability makes, and for specific size depending on the specification and size of electromagnet 10, its function is Motionless electromagnetic
Iron 10.
The sensor plummer 3 is middle and bottom provided with the self-made components of screwed hole and side provided with square groove, its section
T-shaped, its upper screwed hole is used for fixation pressure sensor 11, and square groove is used for the data wire for drawing pressure sensor 11 thereon, adopts
Made of T4 pure iron or the material of other high intensity and high permeability, specific size is according to the specification and size of pressure sensor 11
Depending on, its function is fixation pressure sensor 11.
The T stage 4 is the self-made components that upper end is provided with V-groove, bottom is provided with screwed hole, and its section is T-shaped, is closed using aluminium
The material of golden or other low permeabilities makes, and for specific size depending on the size and quantity of magnetic-particle 16, its function is to contain
Put magnetic-particle 16.
The pendulum 5 is the solid step axle that upper end is provided with Baltimore groove, selects the material of aluminium alloy or other low permeabilities
Make, be self-made components, for specific size depending on the amplitude in source excited by impact and the size of magnetic-particle 16, its function is conduct
The source excited by impact of magnetic-particle chain.
The pendulum support 6 is provided with the plate structure of bearing saddle bore and screwed hole, selects aluminium alloy or other high intensity
It is self-made components, depending on the size of pendulum 5, its function is fixed pendulum 5 and inhaled specific size and the material of low permeability makes
Disk electromagnet fixed disk 7.
The sucker electromagnet fixed disk 7 is provided with the discoid self-made components of screwed hole, selects aluminium alloy or other high-strength
Degree and low permeability material make, specific size depending on the amplitude in source excited by impact and the size of sucker electromagnet 15,
Its function is fixing sucking disk electromagnet 15.
The upper clamping block 8 is the self-made components that lower end is provided with Baltimore groove, selects aluminium alloy or other high intensity and low magnetic conduction
The material of rate makes, and for specific size depending on support shaft 9 and the size of pendulum 5, its function is fixed pendulum 5.
The support shaft 9 is side rectangular cross-section and another lateral section for circular solid shafting, select aluminium alloy or its
The material of its high intensity and low permeability makes, and is self-made components, its function is fixed upper clamping block 8, pendulum 5 and oscillating rod 13.
The electromagnet 10 is part purchased in market, and for concrete model depending on the magnetic field intensity for needing analog magnetic field, its function is to make
For magnetic field excitation source.
The pressure sensor 11 is part purchased in market, and concrete model is according to the impact force response amplitude and frequency of magnetic-particle 16
Depending on, its function is to test the impact force response of magnetic-particle 16.
The bearing 12 is standard component purchased in market, and for concrete model depending on the size of support shaft, its function is to support shaft 9
Play a supportive role.
The oscillating rod 13 is the solid shafting that upper end is provided with circular groove, from the material system of T4 pure iron or other high permeabilities
Make, be self-made components, its function is to control the motion state of pendulum 5.
The floor 14 is the plate structure that side is provided with location and installation hole, from aluminium alloy or other high intensity and low is led
The material of magnetic rate makes, and is self-made components, and its function is support pendulum support 6.
The sucker electromagnet 15 is part purchased in market, and for concrete model depending on the quality of oscillating rod 13, its function is control
The motion state of oscillating rod 13.
The magnetic-particle 16 is part purchased in market, and specific size is depending on test requirements document.
Workflow of the present utility model is as follows：
According to the requirement of source amplitude excited by impact, the sucker electromagnet 15 at corresponding height is powered, goes to oscillating rod 13
To the opening position of sucker electromagnet 15 being powered, oscillating rod 13 is set to attract to connect with sucker electromagnet 15；Electromagnet 10 is powered,
Behind the magnetic field of stabilization to be formed, a number of magnetic-particle 16 is placed in the V-groove of T stage upper end, forms one-dimensional magnetic
Particle chain；The power supply of sucker electromagnet 15 is disconnected, oscillating rod 13 attracts because losing magnetic force, free-falling under gravity；
Because oscillating rod 13 and pendulum 5 are fixedly and coaxially connected, therefore the also free-falling of pendulum 5；When pendulum 5 moves to vertical position,
Its potential energy having hits one-dimensional magnetic field particle chain as impact energy；Pressure sensor 11 records shock wave and reaches One-Dimension Magnetic
Dynamic mechanical response during property particle chain tail end.
Claims (9)
1. a kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics, mainly carried by optical flat, electromagnet
Platform, sensor plummer, T stage, pendulum, pendulum support, sucker electromagnet fixed disk, upper clamping block, support shaft, electromagnet,
Pressure sensor, bearing, oscillating rod, floor, sucker electromagnet, magnetic-particle composition, it is characterised in that：The optical flat water
Placing flat；Pendulum support is arranged on the rightmost side of optical flat, and pendulum support is fixedly connected with optical flat；Floor and pendulum branch
Frame is fixedly connected, and floor is fixedly connected with optical flat；T stage abuts with pendulum support, and the right side of T stage and pendulum branch
The center line of frame is concordant, and T stage is fixedly connected with optical flat；Sensor plummer is arranged on the rear side of T stage, sensor carrying
Platform is fixedly connected with optical flat；Pressure sensor is fixedly connected with sensor plummer；Electromagnet plummer is arranged on sensing
The rear side of device plummer, electromagnet plummer are fixedly connected with optical flat；Electromagnet is fixedly connected with electromagnet plummer；Inhale
Disk electromagnet fixed disk is fixedly connected with pendulum support；Sucker electromagnet is fixedly connected with sucker electromagnet fixed disk；Bearing leads to
Interference fit is in the bearing saddle bore of pendulum support；Support shaft is connected with bearing by interference fits, and the one of support shaft
End is fixedly connected with pendulum, upper clamping block, and the shaft shoulder of the side and support shaft of pendulum and upper clamping block abuts, support shaft it is another
One end is stretched out outside pendulum support and sucker electromagnet fixed disk, is fixedly connected with oscillating rod；Magnetic-particle is placed in T stage top
In V-groove.
2. a kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics as claimed in claim 1, its feature exist
In among the electromagnet plummer and bottom is provided with screwed hole.
3. a kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics as claimed in claim 1, its feature exist
In among the sensor plummer and bottom is provided with screwed hole and side is provided with square groove, and its section is T-shaped.
4. a kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics as claimed in claim 1, its feature exist
In the T stage upper end is provided with V-groove, bottom is provided with screwed hole, and its section is T-shaped.
5. a kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics as claimed in claim 1, its feature exist
In the pendulum is the solid step axle that upper end is provided with Baltimore groove.
6. a kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics as claimed in claim 1, its feature exist
In the pendulum support is provided with the plate structure of bearing saddle bore and screwed hole.
7. a kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics as claimed in claim 1, its feature exist
In the sucker electromagnet fixed disk is provided with the disc-shaped structure of screwed hole.
8. a kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics as claimed in claim 1, its feature exist
In the upper clamping block lower end is provided with Baltimore groove.
9. a kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics as claimed in claim 1, its feature exist
It is side rectangular cross-section in, the support shaft and another lateral section is circular solid shafting, the oscillating rod is that upper end is provided with
The solid shafting of circular groove, the floor are the plate structures that side is provided with location and installation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720500396.5U CN206740349U (en) | 2017-05-08 | 2017-05-08 | A kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720500396.5U CN206740349U (en) | 2017-05-08 | 2017-05-08 | A kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206740349U true CN206740349U (en) | 2017-12-12 |
Family
ID=60563902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720500396.5U Expired - Fee Related CN206740349U (en) | 2017-05-08 | 2017-05-08 | A kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206740349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969900A (en) * | 2017-05-08 | 2017-07-21 | 中国海洋大学 | A kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics |
-
2017
- 2017-05-08 CN CN201720500396.5U patent/CN206740349U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969900A (en) * | 2017-05-08 | 2017-07-21 | 中国海洋大学 | A kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107014690B (en) | Low-frequency disturbance and high-speed impact type high-pressure true triaxial test device and method | |
| CN106969900A (en) | A kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics | |
| CN202066831U (en) | Electromagnetic type electromagnetic type internal friction gauge | |
| CN2869109Y (en) | Portable drop hammer benkelman beams deflectometer | |
| CN206368450U (en) | One kind building damper | |
| CN205607755U (en) | Pressure test device with shock -absorbing structure | |
| CN206740349U (en) | A kind of experimental rig for testing one-dimensional magnetic particle chain crash characteristics | |
| CN204155501U (en) | A kind of horizontal cast movement demonstration instrument | |
| CN102053040B (en) | Dynamic bearing ratio detecting method and instrument | |
| CN104060713A (en) | Building damping device | |
| CN203334463U (en) | Building damping device | |
| CN203443873U (en) | Friction sensitivity and impact sensitivity integrative machine | |
| CN206430994U (en) | Iron gallium alloy impact characteristics test system | |
| CN204008676U (en) | The full-automatic sample introduction mechanism of a kind of flow cytometer | |
| CN204645013U (en) | Heavy type or superduty circular cone dynamic sounding equipment | |
| CN203965265U (en) | A kind of electromagnetic type suspension cable fatigue tester | |
| CN206832600U (en) | Cell body impact resistance experimental provision | |
| CN215487387U (en) | Magnetorheological vibration damper | |
| CN206146812U (en) | Percussion device of secondary impact mechanism is prevented in area | |
| CN205348407U (en) | Steel construction support can slide in plane | |
| CN213978904U (en) | Light-duty power sounding equipment based on electro-magnet | |
| CN104865041A (en) | Luggage oscillation and impact testing machine | |
| CN209432393U (en) | A kind of civil structure seismic testing detection device | |
| CN207066727U (en) | A kind of robot portable energy returns testing agency | |
| CN209014412U (en) | A kind of plastic impact tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 Termination date: 20190508 |