CN207147866U - A kind of creep ageing two-direction pull press experimental rig - Google Patents
A kind of creep ageing two-direction pull press experimental rig Download PDFInfo
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- CN207147866U CN207147866U CN201720932006.1U CN201720932006U CN207147866U CN 207147866 U CN207147866 U CN 207147866U CN 201720932006 U CN201720932006 U CN 201720932006U CN 207147866 U CN207147866 U CN 207147866U
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Abstract
The utility model provides a kind of creep ageing two-direction pull press experimental rig, and the device includes upper-part, lower component and the Guide column component being arranged between upper-part and lower part set with central axis;Lower component and upper-part are connected with the lower link and upper connecting rod of stretching-machine respectively, and upper connecting rod provides pulling force straight up for upper-part;The upper surface of lower component is provided with the second groove for placing cruciform specimen;The end of four free ends of the second groove is respectively arranged with a sliding groove, and slide block assembly is provided with sliding groove;Guide column component includes from top to bottom being arranged in series straight guide pillar and Angle Pin, and the upper end of the upper and lower end parts of straight guide pillar respectively with upper-part and Angle Pin is fixed;The bottom of Angle Pin and the free end of cruciform specimen are connected with slide block assembly;The device is additionally provided with the incubator for providing different temperatures.The utility model can carry out the biaxial tension of cruciform specimen, bi-directional compression at different temperatures and stretch while compression test.
Description
Technical field
Sheet metal creep ageing performance detection field is the utility model is related to, particularly, it is double to be related to a kind of creep ageing
To tension and compression testing device.
Background technology
With the fast development of modern aerospace cause, the requirement more and more higher to aeroplane performance, many primary load bearing structures
The widely used integrated structure design such as the joint of part such as aircraft, crossbeam, dividing plate, wing frame.Creep age forming technology is for system
The new technology to grow up for large-scale integral wall plate class member.
At present, people are still mainly using the compacted of the material such as individual event tension test or biaxial tensile test technique study aluminium alloy
Become age forming performance, biaxial tensile test mainly there are two major classes:1. biaxial tensile test is carried out based on one directional tensile test;②
Biaxial tension is completed using two or more independent drive systems.
The first kind mainly realizes that biaxial tension and design associated mechanical mechanism complete two-way drawing including simple tension several times
Stretch experiment.
1. biaxial tensile test is carried out based on one directional tensile test.Although this method can reach different strain shapes
State, but because the different directions stretching several times of this method reaches, its strain paths is uncontrollable.
2. designing associated mechanical mechanism completes biaxial tensile test.This method is the selection of most researchers, still
What it is due to existing machinery use is tested using straight-bar, and because most stretching-machines can only provide pulling force, therefore it is existing
Some mechanical structure can only carry out biaxial tensile test to test specimen, and bi-directional compression can not be carried out to test specimen either while stretching
One side compression test.
Second class is mainly to carry out biaxial tensile test using separate drive system, can be achieved to enter test specimen simultaneously
Row tensile and compression test, but apparatus structure is complicated, cost is higher, limits the application of this method.
But the forming property only with one directional tensile test or two-way determination plate is far from being enough, certain
At a temperature of, the forming limit diagram (FDL) of plate or the anisotropy of analysis of material are either studied, is required to double by carrying out
To tension test, bi-directional compression experiment and stretch while compression test carrys out the creep ageing of accurately and efficiently research material
Forming characteristic.
CN201210194623.8 discloses a kind of bidirectional tensile tester for testing sheet metal performance, experiment dress
Putting is made up of upper attachment structure, lower attachment structure, ratio regulation mechanism, fixture slide block mechanism and connecting rod, and this structure belongs to
Pure mechanic structure, though biaxial tensile test can be realized effectively, and it can be loaded by different proportion, because test specimen is stretching
During the direction of suffered tensile force constantly change, therefore, the pulling force that the pulling force that sample is subject to provides with stretching-machine
Ratio is continually changing value, and displacement and the ratio of the displacement of stretching-machine that sample stretches are also the value of change;It is simultaneously because real
Apparatus control system is tested it is difficult to ensure that the rate of deformation of the pulling force and test specimen suffered by test specimen is constant, therefore passes through the experimental provision
It is difficult to carry out the stretching experiment with particular/special requirement, for example require that test specimen has the stretching of constant strain speed at a certain temperature
Experiment.
Therefore, it is necessary to design it is a kind of it is simple in construction, be easy to implement pressure suffered by test specimen or rate of deformation and stretching-machine drawing
Power or the ratio of displacement are steady state value and can carry out different proportion experiment loading, and can be used to carry out sheet metal cruciform specimen
Biaxial tension, bi-directional compression and stretch the experimental rig while compressing.
Utility model content
The utility model purpose is to provide a kind of creep ageing two-direction pull press experimental rig, to solve prior art construction
Bi-directional compression can not be carried out to test specimen and either stretch the technical problem while compression test.
To achieve the above object, the utility model provides a kind of creep ageing two-direction pull press experimental rig, described device
Including upper-part, lower component, four Guide column components, four slide block assemblies and incubator, the upper-part and the lower component are by upper
Set to similarly hereinafter central axis, the centre of the lower component and the lower link of stretching-machine connect, the center of the upper-part
The connection of the upper connecting rod of position and stretching-machine and upper connecting rod provide pulling force straight up for the upper-part;
The upper surface of the lower component is provided with the second groove for placing cruciform specimen;The four of second groove
The end position of individual free end is separately provided for placing a sliding groove of the slide block assembly, the extension of the sliding groove
Direction is consistent with the bearing of trend of corresponding second groove;The slide block assembly is arranged on the inside of the sliding groove and energy
Bearing of trend along the sliding groove enters line slip;
Four Guide column components are arranged between the upper-part and lower part, each Guide column component include by
The straight guide pillar and Angle Pin being up to arranged in series down, the upper end of four straight guide pillars are separately fixed on the upper-part,
The bottom of the straight guide pillar is fixedly connected with the upper end of the Angle Pin;The bottom of the Angle Pin and the cross
The free end of test specimen is connected with the slide block assembly, and junction and institute of the bottom of the Angle Pin with the slide block assembly
The upper end of straight guide pillar is stated with the junction of the upper-part to be located in same vertical plane;The central axis edge of the straight guide pillar is perpendicular
Nogata is to and the central axis of the central axis of the Angle Pin and the straight guide pillar is in 105 ° -175 ° of angle;
The incubator is used to provide different temperature when sample carries out creep ageing performance detection.
Especially, the sliding groove is specially the second groove for being arranged in lower component and running through along the vertical direction, described
The T-shaped groove towards second groove, the narrow side court of the T-shaped groove are respectively symmetrically provided with second groove two side
To second groove, wide side is equal to described second away from second groove, the length of the T-shaped groove longitudinal direction
The length of groove longitudinal direction.
Especially, the slide block assembly includes sliding block, rolling bearing, connecting rod and piece fixture;
The sliding block is arranged in second groove, and the both ends of the upper surface of the sliding block are respectively arranged with one with sliding
The inclined hole that the lower surface of block communicates, the inclined hole match connection with the Angle Pin bottom;
The rolling bearing matches in the T-shaped groove being arranged on the second groove two side respectively, and can be along the T
Connected in star is moved, and the rolling bearing is connected with the side wall of the sliding block by axostylus axostyle;
One end of the connecting rod connects the sliding block, and other end connection is connected with the free end end of cruciform specimen
Piece fixture, the middle part of the connecting rod, which disconnects and is clamped with pressure sensor, enables the stress of the pressure sensor to react
The actual conditions of test specimen stress.
Especially, the straight guide pillar and the Angle Pin junction are provided with limited block, and the limited block is used to prevent institute
Straight guide pillar is stated to enter and destroy the inclined hole.
Especially, the lower connector being connected for the lower link with stretching-machine is provided with below the lower component, it is described
The upper connector being connected for the upper connecting rod with stretching-machine is provided with above upper-part.
Especially, the upper-part is provided with four fixing grooves set in cross, the bearing of trend of the fixing groove
Corresponded with the bearing of trend and position of position and second groove;
Each fixing groove includes two the first grooves be arrangeding in parallel and between two first groove
The first groove, first groove is located at the lower surface of the upper-part and sets from bottom to up, the length of first groove
Length of the degree equal to first groove.
Especially, first inside grooves are provided with the fixed block that can be moved along first groove, and described first is recessed
The width and height of groove are corresponding with the width and height of the fixed block respectively;One piece of fixation is provided with below the fixed block
Plate;The fixing groove is provided with the fastener for extending through two first grooves and the fixed plate, the fastener
Quantity be no less than four;The lower surface of the fixed block is connected with the upper surface of the straight guide pillar, and the straight guide pillar runs through
The fixed plate, the cooperation of the fixed plate, the fastener and the fixed block so that the straight guide pillar can be fixed on institute
State any position of the first groove.
Especially, the end of second groove and the first groove is respectively arranged with one piece of baffle plate, avoid the sliding block and
The fixed block skids off the end of second groove and the first groove respectively.
Especially, the incubator prepared using heat-preservation cotton and be provided with heating element, device for monitoring temperature, locking device and
Rubber ring;
The heating element is arranged on the inwall of the incubator, and the heating element is used for the temperature of adjustment control experiment;Institute
State incubator and be divided into two parts, the locking device is used to lock described two parts when testing;The rubber ring is arranged on described two
At partial closure so that be a closed space inside the incubator;The device for monitoring temperature is arranged on inside incubator,
The heating element is fed back to for the temperature inside real-time sensing control incubator, and by sensed data, so as to the power of regulation heating device.
Especially, the both sides of the stretching-machine are separately provided for supporting the two-part support of the incubator, the branch
Guide rail is provided with frame, two parts of the incubator can slide on the guide rail respectively.
Using the technical solution of the utility model, have the advantages that:
1st, because most of stretching-machine can only provide pulling force, and in the utility model device when Angle Pin incline direction not
Together, its power for passing to test specimen by sliding block may be pressure or pulling force, therefore the utility model device overcomes prior art
It is middle using straight-bar when, the shortcomings that biaxial tensile test can only be carried out, can be only by changing the incline direction of Angle Pin with regard to that can have
Imitate the biaxial tension for carrying out cruciform specimen, bi-directional compression and stretch while compression test.
2nd, because the angle of Angle Pin and horizontal plane is certain, as long as pulling force or draw speed that stretching-machine is provided are constant,
It is certain that Angle Pin is conducted to the force value of cruciform specimen or draw speed by sliding block, therefore can ensure what test specimen was subject to
The ratio of the pulling force or displacement of power or displacement and stretching-machine is constant, is not changed with the change of sample dimensions.
3rd, straight angle between guide pillar and Angle Pin can be by needing to set, and due to test specimen in the utility model device
The power or deflection and the pulling force of stretching-machine or displacement ratio being subject to are steady state values, therefore can realize the force value of setting stretching-machine
Or rate of extension is definite value, the force value of different proportion or the strain rate load test of different proportion are carried out to test specimen.
4th, the utility model experimental rig belongs to pure mechanic structure, simple in construction, easy to maintain, installation easily, cost compared with
Low and test procedure is simple to operate.
5th, the utility model experimental rig is provided with incubator, can be adjusted when experiment by the heating element inside incubator
Test temperature is controlled, therefore the utility model experimental rig can be tested at different temperatures;And it is provided with monitoring temperature dress
Put, the accuracy of temperature, wide application when ensure that experiment.
In addition to objects, features and advantages described above, the utility model also has other purposes, feature and excellent
Point.Below with reference to figure, the utility model is described in further detail.
Brief description of the drawings
The accompanying drawing for forming the part of the application is used for providing further understanding to of the present utility model, of the present utility model
Schematic description and description is used to explain the utility model, does not form to improper restriction of the present utility model.In accompanying drawing
In:
Fig. 1 is the overall assembling schematic diagram of embodiment 1;
Fig. 2 is the device sectional view of embodiment 1;
Fig. 3 is the perspective view from bottom to up of the top half of embodiment 1;
Fig. 4 is the perspective view from top to bottom of the latter half of embodiment 1;
Fig. 5 is the schematic diagram of the slide block assembly of embodiment 1;
Fig. 6 is the part-structure schematic diagram when cruciform specimen of embodiment 1 carries out biaxial tensile test;
Fig. 7 is the part-structure schematic diagram when cruciform specimen of embodiment 2 carries out bi-directional compression experiment;
Fig. 8 is the part-structure schematic diagram when cruciform specimen of embodiment 3 carries out a side stretching opposite side compression test;
Reference:
1st, upper end cross frame, 2, lower end cross frame, 3, Guide column component, 4, slide block assembly, 5, stretching-machine, 6, cross
Test specimen, the 7, second groove, the 8, second groove, 9, straight guide pillar, 10, Angle Pin, 11, T-shaped groove, 12, sliding block, 13, rolling bearing,
14th, connecting rod, 15, piece fixture, 16, inclined hole, 17, pressure sensor, 18, lower link, 19, lower connector, 20, upper connecting rod,
21st, upper connector, the 22, first groove, the 23, first groove, 24, fixed block, 25, fixed plate, 26, bolt, 27, limited block, 28,
Baffle plate, 29, support, 30, guide rail, 31, incubator, 32, heating element, 33, locking device, 34, rubber ring.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, but the utility model can be according to power
Profit requires to limit and the multitude of different ways of covering is implemented.
Embodiment 1
Referring to Fig. 1-Fig. 6, a kind of creep ageing two-direction pull press experimental rig, including upper end cross frame 1, lower end cross-shaped
2, four Guide column components 3 of frame and four slide block assemblies 4.
The upper end cross frame and the lower end cross frame are from top to bottom set with central axis, the lower end cross
The centre of support is provided with the lower connector 19 being connected with the lower link of stretching-machine 5 18, in the upper end cross frame
Center portion position is provided with the upper connector 21 being connected with the upper connecting rod of stretching-machine 5 20 and upper connecting rod provides for the upper end cross frame
Pulling force straight up, the lower connector and the upper connector be member structure and respectively with the lower link and described
Upper connecting rod is arranged connection.
The upper surface centre of the lower end cross frame is provided with the second groove 7 for placing cruciform specimen 6;
The end position of four free ends of second groove is respectively arranged with the second groove 8 that an above-below direction runs through, described
The bearing of trend of second groove is consistent with the bearing of trend of corresponding second groove, on the second groove two side respectively
The T-shaped groove 11 towards second groove is symmetrically arranged with, the narrow side of the T-shaped groove is wide towards second groove
Side away from second groove, the length of the T-shaped groove longitudinal direction is equal to the length of the second groove longitudinal direction
Degree.
Fig. 5 is referred to, the slide block assembly includes sliding block 12, rolling bearing 13, connecting rod 14 and piece fixture 15.
The sliding block is arranged in second groove, and the both ends of the upper surface of the sliding block are respectively arranged with one with sliding
The lower surface identical inclined hole 16 of block;It is recessed that the rolling bearing matches the T-shaped being arranged on the second groove two side respectively
In groove, and it can be moved along the T-shaped groove, the rolling bearing is connected with the side wall of the sliding block by axostylus axostyle, the axostylus axostyle
The end set being connected with the sliding block is matchingly provided with stair-stepping groove for the side wall of stepped and described sliding block so that
Side wall of the rolling bearing firmly with the sliding block is connected;The axostylus axostyle is connected through a screw thread with the rolling bearing, described
Rolling bearing is also equipped with a nut for being used to fix the rolling bearing, the nut and institute away from the side of the axostylus axostyle
Axle end is stated to be threadably secured;One end of the connecting rod connects the sliding block, other end connection and cruciform specimen
The piece fixture of free end end connection, the middle part of the connecting rod disconnect and are clamped with detection cruciform specimen stressing conditions
Pressure sensor 17, when the middle part of the connecting rod clamps the pressure sensor, the pressure sensor is solely subjected to come from
In the power that the connecting rod both sides pass over, so that the pressure sensor can accurately measure the cruciform specimen
Stressing conditions.
Four fixing grooves, the bearing of trend of the fixing groove and position are provided with four arms of the upper end cross frame
Corresponded with the bearing of trend of second groove and position, each fixing groove is led to including two be arranged in parallel first
Groove 22 and the first groove 23 between two first grooves, first groove are located at the upper end cross-shaped
The lower surface of four arms of frame and set from bottom to up, the length of first groove is equal to the length of first groove;Institute
State the first inside grooves and be provided with the fixed block 24 that can be moved along first groove;One piece is provided with below the fixed block
Fixed plate 25;The fixing groove is provided with the bolt 26 for extending through two first grooves and the fixed plate, described
The quantity of bolt is four and is divided into two first grooves.
In order to avoid the sliding block and the fixed block skid off the end of second groove and the first groove respectively, in institute
The end for stating the free end of each arm of upper end cross frame and the lower end cross frame is also respectively provided with one piece of gear respectively
Plate 28.
Four Guide column components are arranged between the upper end cross frame and the lower end cross frame, Mei Gesuo
State straight guide pillar 9 and Angle Pin 10 that Guide column component includes from top to bottom being arranged in series, the upper end difference of four straight guide pillars
Correspond through being connected with the lower surface of the fixed block after the fixed plate, the fixed plate, the bolt and described solid
Determine the cooperation of block so that the straight guide pillar can be fixed on any position of first groove.
The bottom of the straight guide pillar is fixedly connected with the upper end of the Angle Pin;And the bottom of the Angle Pin with
The junction of the slide block assembly and the straight upper end of guide pillar are located in same vertical plane with the junction of the upper-part;
Vertically, and the central axis of the central axis of the Angle Pin and the directly guide pillar is in the central axis of the straight guide pillar
105 ° -175 ° of angle;The bottom of the Angle Pin matches connection, the slide block assembly energy with the inclined hole on sliding block
Slided with the motion of the Angle Pin.Control the angle can between straight guide pillar and Angle Pin to realize and difference is carried out to test specimen
The force value or strain rate load test of ratio.In order to avoid the straight guide pillar enters and destroys the inclined hole, the straight guide pillar
The Angle Pin junction is provided with limited block 27.
Referring to Fig. 6, the present embodiment device is mainly used in doing biaxial tensile test, the equal court in upper end of four Angle Pins
The direction of the free end of second groove tilts, and the pulling force of the stretching-machine drives upper end cross frame up to move, so as to
Drive straight guide pillar and Angle Pin up to move, but due to the sliding block can only horizontal motion, and Angle Pin and sliding block is oblique
Hole is matching connection, therefore the end of the Angle Pin pushes the sliding block and breakked away towards away from the free end of second groove
It is dynamic so that the sliding block drives the outside side stretching in free end of cruciform specimen.
For the temperature of creep age forming during Control experiment, it is additionally provided with the outside of described device using insulation cotton
Standby incubator 31, heating element 32 is provided with the inwall of the incubator, can adjust the power of the heating element so as to control examination
The temperature tested;The incubator is divided into the two parts that can be separated, and when experiment, closes two parts and is locked by locking device 33
Tightly, described device is enclosed in inside the incubator, and will be sealed using rubber ring 34 at two-part closure;Work as off-test
When, separate two parts, withdrawing device.
The inside of the incubator is additionally provided with device for monitoring temperature, and the device for monitoring temperature is used in real-time sensing control incubator
The temperature in portion, and sensed data is fed back into the heating element, so as to the power of regulation heating device.Device for monitoring temperature herein
Can be the devices such as temperature sensor or temperature measurer.
The both sides of the stretching-machine are separately provided for supporting the two-part support 29 of the incubator, are set on the support
Guide rail 30 is equipped with, two parts of the incubator can slide on the guide rail respectively is opened and closed action.
Embodiment 2
Fig. 7 is referred to, the present embodiment device is mainly used in doing bi-directional compression experiment, as long as now by guide pillar group in embodiment 1
Part rotates 180 ° along straight guide pillar axis direction so that the upper end of four Angle Pins is towards away from second groove
The direction of free end tilts, and the pulling force of the stretching-machine drives upper end cross frame up to move, so as to drive straight guide pillar and tiltedly
Guide pillar up moves, but due to the sliding block can only horizontal motion, and Angle Pin is to match connection with the inclined hole of sliding block, because
The free end side that the end of this Angle Pin pushes the sliding block towards second groove is slided so that the sliding block pushes ten
The free end of font test specimen is to inboard compression.
Embodiment 3
Fig. 8 is referred to, the present embodiment device, which is mainly used in doing, to be stretched while compression test, integrated embodiment 1 and implementation
The structure of example 2, the upper end of two relative Angle Pins of control one of which tilt towards the free end side of second groove,
The upper end of two relative Angle Pins of another set tilts towards the free end side away from second groove and can be achieved.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
- A kind of 1. creep ageing two-direction pull press experimental rig, it is characterised in that described device include upper-part, lower component, four Guide column component (3), four slide block assemblies (4) and incubator (31), the upper-part and the lower component from top to bottom same central shaft Line is set, and the centre of the lower component is connected with the lower link (18) of stretching-machine (5), the centre of the upper-part and Upper connecting rod (20) connection of stretching-machine (5) and upper connecting rod provide pulling force straight up for the upper-part;The upper surface of the lower component is provided with the second groove (7) for placing cruciform specimen (6);Second groove The end position of four free ends is separately provided for placing a sliding groove of the slide block assembly (4), the sliding groove Bearing of trend it is consistent with the bearing of trend of corresponding second groove;The slide block assembly (4) can be along the sliding groove Bearing of trend enters line slip;Four Guide column components are arranged between the upper-part and lower part, and each Guide column component is included by up to Under the straight guide pillar (9) and Angle Pin (10) that are arranged in series, the upper end of four straight guide pillars is separately fixed at the upper-part On, the bottom of the straight guide pillar is fixedly connected with the upper end of the Angle Pin;The bottom of the Angle Pin and described ten The free end of font test specimen is connected with the slide block assembly, and the bottom of the Angle Pin and the junction of the slide block assembly It is located at the straight upper end of guide pillar with the junction of the upper-part in same vertical plane;The center of the straight guide pillar (9) Vertically, and the central axis of the central axis of the Angle Pin and the straight guide pillar is in 105 ° -175 ° of angle to axis;The incubator is used to provide different temperature when sample carries out creep ageing performance detection.
- A kind of 2. creep ageing two-direction pull press experimental rig according to claim 1, it is characterised in that the sliding groove tool Body is the second groove (8) for being arranged in lower component and running through along the vertical direction, on the second groove two side respectively symmetrically The T-shaped groove (11) towards second groove is provided with, the narrow side of the T-shaped groove is wide towards second groove Away from second groove, the length of the T-shaped groove longitudinal direction is equal to the length of the second groove longitudinal direction for side.
- A kind of 3. creep ageing two-direction pull press experimental rig according to claim 2, it is characterised in that the slide block assembly Including sliding block (12), rolling bearing (13), connecting rod (14) and piece fixture (15);The sliding block is arranged in second groove, and the both ends of the upper surface of the sliding block are respectively arranged with one and sliding block The inclined hole (16) that lower surface communicates, the inclined hole match connection with the Angle Pin bottom;The rolling bearing matches in the T-shaped groove being arranged on the second groove two side respectively, and can be recessed along the T-shaped Groove is moved, and the rolling bearing is connected with the side wall of the sliding block by axostylus axostyle;One end of the connecting rod connects the sliding block, the test specimen that other end connection is connected with the free end end of cruciform specimen Fixture, the middle part of the connecting rod, which disconnects and is clamped with pressure sensor (17), enables the stress of the pressure sensor to react The actual conditions of test specimen stress.
- A kind of 4. creep ageing two-direction pull press experimental rig according to claim 3, it is characterised in that the straight guide pillar and The Angle Pin junction is provided with limited block (27), and the limited block is used to prevent the straight guide pillar from entering and destroyed described oblique Hole.
- 5. a kind of creep ageing two-direction pull press experimental rig according to claim 1, it is characterised in that the lower component Lower section is provided with the lower connector (19) being connected for the lower link with stretching-machine, be provided with above the upper-part for The upper connector (21) of the upper connecting rod connection of stretching-machine.
- 6. a kind of creep ageing two-direction pull press experimental rig according to claim 2, it is characterised in that on the upper-part Provided with four fixing grooves set in cross, the bearing of trend of the fixing groove and position and the extension side of second groove Corresponded to position;Each fixing groove includes two the first grooves (22) be arrangeding in parallel and between two first groove The first groove (23), first groove is located at the lower surface of the upper-part and sets from bottom to up, first groove Length be equal to first groove length.
- A kind of 7. creep ageing two-direction pull press experimental rig according to claim 6, it is characterised in that first groove Be internally provided with the fixed block (24) that can be moved along first groove, the width and height of first groove respectively with it is described The width and height of fixed block are corresponding;One piece of fixed plate (25) is provided with below the fixed block;The fixing groove is provided with Two first grooves and the fastener (26) of the fixed plate are extended through, the quantity of the fastener is no less than four It is individual;The lower surface of the fixed block is connected with the upper surface of the straight guide pillar, and the straight guide pillar runs through the fixed plate, described The cooperation of fixed plate, the fastener and the fixed block so that the straight guide pillar can be fixed on appointing for first groove What position.
- A kind of 8. creep ageing two-direction pull press experimental rig according to claim 7, it is characterised in that second groove One piece of baffle plate (28) is respectively arranged with the end of the first groove, avoids the sliding block and the fixed block from skidding off and skid off institute respectively State the end of the second groove and the first groove.
- 9. a kind of creep ageing two-direction pull press experimental rig according to claim 1, it is characterised in that the incubator uses Heat-preservation cotton prepares and is provided with heating element (32), device for monitoring temperature, locking device (33) and rubber ring (34);The heating element is arranged on the inwall of the incubator, and the heating element is used for the temperature of adjustment control experiment;The temperature Case is divided into two parts, and the locking device is used to lock described two parts when testing;The rubber ring is arranged on described two parts Closure at so that be a closed space inside the incubator;The device for monitoring temperature is arranged on inside incubator, is used for Temperature inside real-time sensing control incubator, and sensed data is fed back into the heating element, so as to the power of regulation heating device.
- A kind of 10. creep ageing two-direction pull press experimental rig according to claim 9, it is characterised in that the stretching-machine Both sides be separately provided for supporting the two-part support of the incubator (29), guide rail (30), institute are provided with the support Stating two parts of incubator can slide on the guide rail respectively.
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Cited By (1)
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CN107255587A (en) * | 2017-07-28 | 2017-10-17 | 中南大学 | A kind of creep ageing two-direction pull press experimental rig |
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CN107255587A (en) * | 2017-07-28 | 2017-10-17 | 中南大学 | A kind of creep ageing two-direction pull press experimental rig |
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