CN206683941U - A kind of simulation thin film material plane and the experimental rig of quadric stress relexation - Google Patents
A kind of simulation thin film material plane and the experimental rig of quadric stress relexation Download PDFInfo
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- CN206683941U CN206683941U CN201720520159.5U CN201720520159U CN206683941U CN 206683941 U CN206683941 U CN 206683941U CN 201720520159 U CN201720520159 U CN 201720520159U CN 206683941 U CN206683941 U CN 206683941U
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Abstract
The utility model discloses a kind of simulation thin film material plane and the experimental rig of quadric stress relexation, it is by control device（20）, interactive system（21）, loading device（1）, pulling force sensor（2）, displacement transducer（7）Deng composition.Cruciform specimen（19）Four ends pass through c-type sleeve fixture（4）It is fixed；Horizontal direction pulling force sensor（2）Pass through linking arm（3）By piece fixture and loading device（1）Connection；Vertical direction pulling force sensor（2）Connect vertical support（5）With loading device（1）.Control device（20）For controlling the stretching mode of test specimen, and pass through interactive system（21）Realize interface operation.The utility model is safe and reliable, novel form, practical, simple to operate, and visual strong, control is flexible, detects and easy to maintenance, and horizontal addload and Vertical loading can be achieved, and carries out stress relaxation test.
Description
Technical field：
The experimental rig of a kind of simulation thin film material plane and quadric stress relexation is the utility model is related to, can be applied
In civil engineering and materials science field.
Background technology：
Social economy and science and technology develop the reform for promoting existing material and the appearance of new material rapidly, and make material
Material application is expanded to various fields such as mechanical engineering, civil engineering and Aero-Space.As the basis of application and analysis, material
Expect that the research of mechanical property is particularly important.For high polymer material and cloth type material, stress relaxation ability turns into research, and it is viscous
An important research direction of characteristic is played, many scholars have carried out stress relaxation test and proposed different material models.But
Development test is mostly uniaxial or biaxial stretching plane stress state, shorter mention quadric stress condition test.
Biaxial stress relaxation test at present is mostly based on biaxial tension-compression strength machine equipment.Such testing equipment is divided into mechanically
And electronic type.Though mechanical simple to operate, stability is preferable, and draw stage controlling is poor.Electronic equipment can then overcome machine
Tool formula shortcoming, is preferably controlled biaxial stretch-formed ratio, and accuracy is higher, but the kind equipment can not still realize Vertical loading
And quadric stress relaxation test, it can only carry out plane stress state test.
Utility model content：
The purpose of this utility model is exactly to provide a kind of safe and reliable, form to overcome the shortcomings of above-mentioned prior art
Novelty, practical, simple to operate, visual strong, control is flexible, detection and simulation thin film material plane and song easy to maintenance
The experimental rig of face stress relaxation effect.
The purpose of this utility model can be reached by following measure：A kind of simulation thin film material plane and quadric stress
The experimental rig of relexation, it includes control device, control device connection interactive system, it is characterised in that it also includes
5 loading devices, 5 pulling force sensors, 4 linking arms, 4 c-type sleeve fixtures, vertical support, cross steel bracket, 2
Displacement transducer, wherein：4 loading devices are respectively symmetrically arranged in the horizontal and vertical of cruciform specimen horizontal direction, and lead to
Four ends for being fixed on cross steel bracket are crossed, this 4 loading devices respectively connect a pulling force sensor；Each pull sensing
Device respectively connects a c-type sleeve fixture by a linking arm；Four ends of cruciform specimen pass through 4 c-type sleeve fixtures
Tensioning is fixed；2 displacement transducers are located at cruciform specimen core space orthogonal horizontal both direction；Another loading device
Vertical direction at cruciform specimen center, the loading device connect the pulling force sensor of vertical direction, vertical direction
Pulling force sensor is connected with the vertical support that lower section is placed at cruciform specimen center；Described loading device can realize it is horizontal and
Vertical loading, it is by stepper motor, T-shaped connector, bearing, contiguous block, screw mandrel, guide rail, sliding block, contiguous block and connection component group
Into；Stepper motor is connected by T-shaped connector with bearing；Bearing is connected by the first contiguous block with screw mandrel and guide rail, screw mandrel and
Guide rail is horizontal positioned and is arranged above and below；Upper end of slide block is drilled with screwed hole, is connected with screw mandrel, and lower end drilling is placed on guide rail；Guide rail
The other end connects the second contiguous block, and guide rail is fixed on cross steel bracket by the second contiguous block together with the first contiguous block；Even
Connected components one end is connected with sliding block both sides, and the other end then connects pulling force sensor；On control device connection cross steel bracket.
In order to further realize the purpose of this utility model, described described control device include programmable controller,
Pulse output module, Analog input mModule, 5 motor drivers, 5 pulling force transmitters, programmable controller connect respectively
Pulse output module, Analog input mModule, pulse output module connect 5 motor drivers, each motor driver respectively
The stepper motor with 1 loading device is connected respectively, and Analog input mModule connects 5 pulling force transmitters, each pulling force pick-up
Device connects a pulling force sensor respectively；The programmable controller connection interactive system of control device.
The utility model can produce following good effect compared with the prior art：
（1）This experimental provision can realize the horizontal and vertical of test specimen plus unloading, for test specimen plane stress state and curved surface
Stress state is tested.Positioned by guide rail, screw mandrel and sliding block, guarantee is both horizontally and vertically loaded, and the rotation of bearing is turned round
Square is converted into displacement of the sliding block in guide rail direction, realizes the loading and unloading to test specimen.Vertical direction loading then can be directly according to cunning
Block lifts displacement in the mobile measure of guide rail.The mechanical structure of the load mode is simple, and power transmission is clear and definite, strong operability, low cost.
（2）Loading device is further applied load to the horizontal both direction of cruciform specimen, is surveyed in drawing process by pulling force sensor
The payload values applied are measured, the shift value of two horizontal directions in displacement sensor cruciform specimen core space position, pass through control
Device processed is constantly transferred to interactive system, records the load-displacement curve of drawing process test specimen.The present invention using precision compared with
High displacement transducer, and be reliably connected with test specimen, verified by debugging, stability is good, load-displacement curve measurement accuracy
It is high.
（3）This experimental provision uses interactive system interface operation, and the unilateral of horizontal direction is carried out by control device
Independent plus unloading, single-way linkage add unloading, two-way proportional to add unloading, repeatedly add unloading, try hard to keep and hold；Vertical direction adds unloaded operation
Pattern.Compared with the prior art, there is visual strong, easy to operate, the diversified advantage of mode of operation.
（4）In control device on the basis of coupon level a direction direction, make corresponding stepper motor by setting constant turn
Speed loading, another horizontal direction of test specimen are then constantly adjusted corresponding stepper motor rotating speed by control device, ensure two water of test specimen
Square in proportional loading.For Nonlinear Thin membrane material, the control mode is more flexible, has been reliably achieved proportional loading.
（5）Vertical support applies external load lifting test specimen plane and forms curved surface, and local surface lotus is measured by pulling force sensor
Load value.The payload values of pulling force sensor are constantly transferred to interactive system by control device, carry out long term time and load
The record of value, complete the test of stress relaxation under curved surface.The experimental rig realizes Vertical loading and quadric stress relaxation test,
It compensate for the vacancy of prior art.
Brief description of the drawings：
Fig. 1 is mechanical structure schematic top plan view of the present utility model；
Fig. 2 is mechanical structure side schematic view of the present utility model；
Fig. 3 is control device electrical schematic diagram of the present utility model.
Embodiment：
Specific embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.
Embodiment：A kind of simulation thin film material plane and the experimental rig of quadric stress relexation（Referring to Fig. 1-Fig. 3）,
Its mechanical structure portion includes 5 linking arms of pulling force sensor 2,4 of loading device 1,5,3,4 c-type sleeve fixtures 4, vertical
6,2 supporting 5, cross steel bracket displacement transducers 7, wherein：4 loading devices 1 are respectively symmetrically arranged in cruciform specimen
19 horizontal directions transverse direction [i.e. X to（X1 to X2 to）] and longitudinal direction [i.e. Y-direction（Y1 to Y2 to）], and fixed by connector
In four ends of cross steel bracket 6, this 4 loading devices 1 respectively connect a pulling force sensor 2；Each pulling force sensor 2
A c-type sleeve fixture 4 is respectively connected by a linking arm 3；Four ends of cruciform specimen 19 pass through 4 c-type collet heads
Tensioning is fixed in tool 4.2 displacement transducers 7 are installed in the core space orthogonal horizontal both direction of cruciform specimen 19, measure it
Deformation in stretching process.Another loading device 1 is arranged in the vertical direction at the center of cruciform specimen 19（That is Z-direction）, should
Loading device 1 connects the pulling force sensor 2 of vertical direction, the pulling force sensor 2 of vertical direction with the center of cruciform specimen 19
The vertical support 5 that lower section is placed is connected, and the local core space of cruciform specimen 19 is jacked.Set on cross steel bracket 6
There are 8 oblique horizontal supports 17 and 4 vertical supports 18 to increase its rigidity and stability.The loading device 1 can realize water
Gentle Vertical loading, it is by stepper motor 8, T-shaped connector 9, bearing 10, contiguous block 11, screw mandrel 12, guide rail 13, sliding block 14, company
Connect block 15 and connection component 16 forms.Stepper motor 8 is connected by T-shaped connector 9 with bearing 10；Bearing 10 passes through the first connection
Block 11 is connected with screw mandrel 12 and guide rail 13, and screw mandrel 12 and guide rail 13 are horizontal positioned and be arranged above and below；The upper end of sliding block 14 is drilled with screw thread
Hole, it is connected with screw mandrel 12, lower end drilling is placed on guide rail 13；The other end of guide rail 13 connects the second contiguous block 15 and fixed, and second connects
Block 15 is connect guide rail 13 is fixed on cross steel bracket 6 together with the first contiguous block 11；The one end of connection component 16 and sliding block 14
Both sides are connected, and the other end then connects pulling force sensor 2.Control device 20 is connected on cross steel bracket 6.Control device 20 connects
Interactive system 21, control device 20 include programmable controller 20-1, pulse output module 20-2, Analog input mModule
20-3,5 motor driver 20-4,5 pulling force transmitter 20-5, programmable controller 20-1 connect pulse output module respectively
20-2, Analog input mModule 20-3, pulse output module 20-2 connect 5 motor driver 20-4 respectively, and each motor drives
Dynamic device 20-4 is connected with the stepper motor 8 of 1 loading device 1 respectively, 5 pulling force transmitters of Analog input mModule 20-3 connections
20-5, each pulling force transmitter 20-5 connect a pulling force sensor 2 respectively.The programmable controller 20-1 of control device 20 connects
Connect interactive system 21 and realize interface operation, there is provided difference plus unloaded operation pattern..
In the utility model, being positioned by guide rail 13, screw mandrel 12 and sliding block 14, guarantee both horizontally and vertically loads, and
The driving torque of bearing 10 is converted into displacement of the sliding block 14 in the direction of guide rail 13, realizes the loading and unloading to test specimen 19, and protect
Hinder test specimen 19 uniform force, stably.Vertical direction loading then directly can lift position according to mobile measure of the sliding block 14 in guide rail 13
Move.
In the utility model, loading device 1 is further applied load to 19 horizontal both direction of cruciform specimen, in drawing process by
The payload values that the measurement of pulling force sensor 2 applies, 2 displacement transducers 7 measure two, 19 core space position of cruciform specimen level
The shift value in direction, interactive system 21 is constantly transferred to by control device 20, records load-position of drawing process test specimen
Move curve.
The electrical installation principle of control device of the present utility model is as shown in Figure 3.Pass through the selection pair of interactive system 21
The loading of cruciform specimen 19（Unloading）Pattern（Unilateral including horizontal direction independently adds unloading, single-way linkage to add unloading, two-way
Ratio adds unloading, repeatedly adds unloading, tries hard to keep and hold；Vertical direction adds unloaded operation pattern）.
By taking the two-way proportional loading of horizontal direction as an example, by a horizontal direction（X to）As reference direction, man-machine right
Direction motor rotation speed parameter is inputted in telephone system 21（vx）, another horizontal direction（Y-direction）Motor initial rotation speed
Degree（vY）, two horizontal direction payload values to be loaded（FXAnd FY）With proportional loading coefficient（ρ=FX：FY）, make programmable controller
20-1 controls pulse output module 20-2 sends motor driver 20-4 of the pulse signal to correspondence direction, corresponding stepper motor
8 by the speed parameter inputted（vxAnd vY）Rotate；The payload values that X and the pulling force sensor 2 of Y-direction gather simultaneously pass through corresponding
Pulling force transmitter 20-5 is converted into current signal and is transferred to Analog input mModule 20-3, Analog input mModule 20-3
Payload values representated by this current signal are delivered to programmable controller 20-1, programmable controller 20-1 is according to obtained X
To with Y-direction payload values size, send a signal to pulse output module 20-2, it is sent different pulse signals and constantly adjust Y
To the velocity of rotation v of stepper motor 8Y, ensure that Y-direction payload values keep proportionality coefficient ρ with X to payload values, realize proportional loading.X
Constant rotation speed v is pressed to motorxLoading is rotated until X reaches the payload values F of setting to force snesor 2X, Y-direction motor follows X
Keep the rotation of ratio speed change to be loaded onto Y-direction force snesor 2 to payload values and reach FY, loading terminates.
Similarly, independently add unloading, single-way linkage to add unloading for horizontal direction is unilateral, repeatedly add unloading and vertical direction to add
Unloading mode operation principle is identical, is not repeating.
When carrying out stress relaxation test, pass through the operation principle of above-mentioned experimental rig, the level of completion cruciform specimen 19
Loading and Vertical loading process, stop stepper motor 8 and rotate.The payload values of pulling force sensor 2 are constantly passed by control device 20
Interactive system 21 is defeated by, carries out long term time and the record of payload values, completes the test of stress relaxation under plane and curved surface.
The utility model compared with example to disclose as above, and so it is not limited to the utility model.The utility model institute
Have usually intellectual in category technical field, do not departing from spirit and scope of the present utility model, when various changes can be made
With retouching.Therefore, the utility model is not limited to examples detailed above, and those skilled in the art do not take off according to announcement of the present utility model
The improvement and modification made from category of the present utility model all should be within the scope of protection of the utility model.
Claims (2)
1. a kind of simulation thin film material plane and the experimental rig of quadric stress relexation, it includes control device（20）, control
Device processed（20）Connect interactive system（21）, it is characterised in that it also includes 5 loading devices（1）, 5 pulling force sensors
（2）, 4 linking arms（3）, 4 c-type sleeve fixtures（4）, vertical support（5）, cross steel bracket（6）, 2 displacement transducers
（7）, wherein：4 loading devices（1）Respectively symmetrically it is arranged in cruciform specimen（19）Horizontal direction it is horizontal and vertical, and lead to
Cross and be fixed on cross steel bracket（6）Four ends, this 4 loading devices（1）Respectively connect a pulling force sensor（2）；Often
Individual pulling force sensor（2）Respectively pass through a linking arm（3）Connect a c-type sleeve fixture（4）；Cruciform specimen（19）'s
Four ends pass through 4 c-type sleeve fixtures（4）Tensioning is fixed；2 displacement transducers（7）Located at cruciform specimen（19）Core
Area's orthogonal horizontal both direction；Another loading device（1）Located at cruciform specimen（19）Vertical direction at center, the loading
Device（1）Connect the pulling force sensor of vertical direction（2）, the pulling force sensor of vertical direction（2）With cruciform specimen（19）In
The vertical support that lower section is placed at the heart（5）It is connected；Described loading device（1）Horizontal and vertical loading can be achieved, it is by stepping
Motor（8）, T-shaped connector（9）, bearing（10）, contiguous block（11）, screw mandrel（12）, guide rail（13）, sliding block（14）, contiguous block
（15）And connection component（16）Composition；Stepper motor（8）Pass through T-shaped connector（9）With bearing（10）It is connected；Bearing（10）Pass through
First contiguous block（11）With screw mandrel（12）And guide rail（13）It is connected, screw mandrel（12）And guide rail（13）It is horizontal positioned and be arranged above and below；
Sliding block（14）Upper end is drilled with screwed hole, with screw mandrel（12）It is connected, lower end drilling is placed on guide rail（13）On；Guide rail（13）The other end connects
Connect the second contiguous block（15）, the second contiguous block（15）With the first contiguous block（11）Together by guide rail（13）It is fixed on cross steel branch
Frame（6）On；Connection component（16）One end and sliding block（14）Both sides are connected, and the other end then connects pulling force sensor（2）；Control device
（20）Connect cross steel bracket（6）On.
2. a kind of simulation thin film material plane according to claim 1 and the experimental rig of quadric stress relexation, its
It is characterised by described control device（20）Including programmable controller（20-1）, pulse output module（20-2）, analog quantity it is defeated
Enter module（20-3）, 5 motor drivers（20-4）, 5 pulling force transmitters（20-5）, programmable controller（20-1）Connect respectively
Connect pulse output module（20-2）, Analog input mModule（20-3）, pulse output module（20-2）5 motors are connected respectively to drive
Dynamic device（20-4）, each motor driver（20-4）Respectively with 1 loading device（1）Stepper motor（8）It is connected, analog quantity is defeated
Enter module（20-3）Connect 5 pulling force transmitters（20-5）, each pulling force transmitter（20-5）A pull sensing is connected respectively
Device（2）；Control device（20）Programmable controller（20-1）Connect interactive system（21）.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720520159.5U CN206683941U (en) | 2017-05-11 | 2017-05-11 | A kind of simulation thin film material plane and the experimental rig of quadric stress relexation |
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| CN201720520159.5U CN206683941U (en) | 2017-05-11 | 2017-05-11 | A kind of simulation thin film material plane and the experimental rig of quadric stress relexation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896022A (en) * | 2017-05-11 | 2017-06-27 | 鲁东大学 | A kind of simulation thin film material plane and the experimental rig of quadric stress relexation |
| CN108020354A (en) * | 2017-12-22 | 2018-05-11 | 重庆中科建设（集团）有限公司 | A kind of construction film structure pre-tension measuring device and method |
| CN109406272A (en) * | 2018-10-11 | 2019-03-01 | 中国矿业大学 | A kind of jacking membrane structure accumulated loading test device and test method |
-
2017
- 2017-05-11 CN CN201720520159.5U patent/CN206683941U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896022A (en) * | 2017-05-11 | 2017-06-27 | 鲁东大学 | A kind of simulation thin film material plane and the experimental rig of quadric stress relexation |
| CN108020354A (en) * | 2017-12-22 | 2018-05-11 | 重庆中科建设（集团）有限公司 | A kind of construction film structure pre-tension measuring device and method |
| CN109406272A (en) * | 2018-10-11 | 2019-03-01 | 中国矿业大学 | A kind of jacking membrane structure accumulated loading test device and test method |
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