CN209570460U - A kind of long-time creep test machine - Google Patents
A kind of long-time creep test machine Download PDFInfo
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- CN209570460U CN209570460U CN201822028017.4U CN201822028017U CN209570460U CN 209570460 U CN209570460 U CN 209570460U CN 201822028017 U CN201822028017 U CN 201822028017U CN 209570460 U CN209570460 U CN 209570460U
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Abstract
The utility model relates to a kind of long-time creep test machines, including rack, loading device, counterweight device, leverage, buffer unit and heating device, the rack includes pedestal and support base, the loading device includes upper connecting rod and lower pull rod, the counterweight device is equipped with support rod and counterweight, the leverage is installed on the support base, the head and the tail both ends of the leverage are connect with the counterweight device and loading device respectively, the buffer unit is connect with the counterweight device, the buffer unit includes surge tank and motion bar, the heating device includes heating furnace, the upper connecting rod and lower pull rod are passed through out of described heating furnace.Long-time creep test machine in the utility model passes through the cooperation of buffer unit and leverage, loading device and counterweight device, prevent counterweight device from damaging to the impact of rack to testing machine, the vibration for mitigating testing machine improves the stationarity and detection accuracy of testing machine.
Description
Technical field
The utility model relates to testing of materials technical field more particularly to a kind of long-time creep test machines.
Background technique
Creep test is measurement material under prolonged constant temperature and constant stress effect, and slowly plastic deformation phenomenon occurs
A kind of mechanical property of materials test, the temperature stability and deformation quantity of material are obtained by creep experiments, according to material
Performance selects application field and processing technology.
Existing creep testing machine generally passes through lever and counterweight composite structure loads test specimen, but in test process
In, test specimen may be broken under the action of high-intensitive load, cause impact of the counterweight to workbench, and destructive test is set
It is standby, influence measurement accuracy and efficiency.
Utility model content
The goal of the invention of the utility model is to provide a kind of long-time creep test machine, improves the measurement stationarity of equipment
And measurement accuracy.
The utility model solves technical solution used by above-mentioned technical problem:
A kind of long-time creep test machine, including,
Rack, the rack include pedestal and support base, are connected between the support base and pedestal by several support columns
It connects；
Loading device, the loading device include upper connecting rod and lower pull rod, and the upper connecting rod and lower pull rod are close to each other
One end is used for clamping test pieces；
Counterweight device, the counterweight device are equipped with support rod, can wear multiple counterweights on the support rod；
Leverage, the leverage are installed on the support base, the head and the tail both ends of the leverage respectively with
The counterweight device is connected with loading device；
Buffer unit, the buffer unit are connect with the counterweight device, and the buffer unit includes surge tank and activity
Bar, the surge tank is interior to be equipped with oil liquid, and one end of the motion bar is connect with the counterweight device, the other end of the motion bar
It is placed in the surge tank, and can be relative to the surge tank movement so that the motion bar passes in and out in the oil liquid；
Heating device, the heating device include heating furnace, and the center of the heating furnace is run through, the upper connecting rod and drop-down
Bar is passed through out of described heating furnace, so that the test specimen is located at the inside heating furnace.
In a preferred embodiment, it is additionally provided with a block in the surge tank, the motion bar is from the block
Inside passes through and is inserted into the surge tank, and the motion bar can be mobile relative to the block, and the block is equipped with several
Perforative oilhole.
In a preferred embodiment, one end that the motion bar is located in the surge tank is connected with baffle, institute
The top that baffle is located at the block is stated, forms a cushion chamber between the block and the baffle, the oilhole delays with described
Rush chamber connection.
In a preferred embodiment, the upper connecting rod and lower pull rod one end close to each other are equipped with locating piece,
The locating piece is equipped with location hole, and the location hole and the upper connecting rod and lower pull rod are concentric.
In a preferred embodiment, the loading device is additionally provided with detection components, and the detection components include the
One pull rod, the second pull rod and detection piece, the detection piece are equipped with the extension end that can be mutually shifted and fixing end, first pull rod
Both ends are connect with the upper connecting rod and the extension end respectively, the both ends of second pull rod respectively with the lower pull rod and fixation
End connection.
In a preferred embodiment, one end and described second that first pull rod is connect with the detection piece
One end that pull rod is connect with the detection components is equipped with idler wheel, and second pull rod is equipped with far from the side of first pull rod
For the sliding rail of the roller-coaster.
In a preferred embodiment, the heating device further includes guidance set, and the guidance set includes point
It is not set to the guide rail and several sliding blocks of the heating furnace two sides, the sliding block and the heating furnace are affixed, and the sliding block can
It is slided along the guide rail and the heating furnace is driven to be moved.
In a preferred embodiment, there are two the sliding block is respectively set in the upper and lower end face of the heating furnace,
The heating furnace is cylindrical, the sliding block on each end face be respectively positioned on the heating furnace the end face it is same diametrically.
It in a preferred embodiment, further include elevation and subsidence regulating device, the elevation and subsidence regulating device includes lifting shaft
And lifting seat, the lifting seat are installed on the pedestal, one end of the lifting shaft is connect with the lower pull rod, the lifting
Axis passes through the lifting seat and can be mobile relative to the lifting seat, so that the lower pull rod be driven to be moved.
In a preferred embodiment, the leverage further includes balanced weight and sensor, the balanced weight and
Sensor is respectively arranged on the both ends of the leverage, and the heating device further includes several heater strips, the heater strip and institute
State heating furnace connection.
The beneficial effects of the utility model are: the long-time creep test machine in the utility model passes through buffer unit and lever
The cooperation of device, loading device and counterweight device prevents counterweight device from damaging to the impact of rack to testing machine, mitigates examination
The vibration for testing machine improves the stationarity and detection accuracy of testing machine.
Detailed description of the invention
The utility model is described further with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model long-time creep test machine one embodiment；
Fig. 2 is the structural schematic diagram of the utility model leverage one embodiment；
Fig. 3 is the structural schematic diagram of the utility model heating device one embodiment；
Fig. 4 is the structural schematic diagram of the utility model loading device one embodiment；
Fig. 5 is the structural schematic diagram of the utility model buffer unit one embodiment；
Fig. 6 is the structural schematic diagram of the utility model elevation and subsidence regulating device one embodiment.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the utility model, specific structure and generation
Clear, complete description, to be completely understood by the purpose of this utility model, scheme and effect.It should be noted that not conflicting
In the case where, the features in the embodiments and the embodiments of the present application can be combined with each other.
It should be noted that unless otherwise specified, when a certain feature referred to as " fixation ", " connection " are in another feature,
It can directly fix, be connected to another feature, and can also fix, be connected to another feature indirectly.In addition, this
The descriptions such as upper and lower, left and right used in utility model are only the phase relative to each component part of the utility model in attached drawing
For mutual positional relationship.
In addition, unless otherwise defined, the technology of all technical and scientific terms used herein and the art
The normally understood meaning of personnel is identical.Term used in the description is intended merely to description specific embodiment herein, without
It is to limit the utility model.Term " and or " used herein includes appointing for one or more relevant listed items
The combination of meaning.
Referring to Fig.1, the long-time creep test machine in the present embodiment includes rack 100, and rack 100 includes pedestal 110 and branch
Seat 120 is supportted, support base 120 is located at 110 top of pedestal, it is connected between support base 120 and pedestal 110 by several support columns 130,
Support column 130 is that support base 120 provides support platform and equilibrant force.Loading device is equipped between support base 120 and pedestal 110
200, heating device 300 and counterweight device 400 are equipped with leverage 500, the both ends point of leverage 500 on support base 120
It is not connect with counterweight device 400 and loading device 200, loading device 200 clamps test specimen, and in 500 He of leverage
Active force is applied to test specimen under the mating reaction of counterweight device 400, loading device 200 passes through heating device 300 so that test specimen position
Inside heating device 300, heating device 300 can be heated and be kept the temperature to test specimen, to can measure test specimen in different temperatures
And under load, generated deflection and other performance parameters.
Preferably, it is additionally provided with buffer unit 600, elevation and subsidence regulating device 700 and guiding device 800, buffer unit 600 is located at
110 lower section of pedestal is simultaneously connect with counterweight device 400, avoids counterweight caused by being broken in the detection process in test specimen to rack 100
Impact, on testing machine cause damage or influence test；Elevation and subsidence regulating device 700 passes through pedestal 110 and connects with loading device 200
It connects, the stress state of loading device 200 is adjusted by elevation and subsidence regulating device 700, guarantee test is gone on smoothly；Guiding device
800 are installed on support column 130 and connect with heating device 300, heating device 300 under the guiding role of guiding device 800,
It passes through loading device 200 from the center of heating device 300 just, guarantees the consistency of each position heating temperature of test specimen, improve
Detection accuracy.
Specifically, the leverage 500 in the present embodiment includes lever 510 referring to Fig. 2, lever 510 includes the first load
End 511 and the second loading end 512, the first loading end 511 are connect with loading device 200, the second loading end 512 and counterweight device
Load of the loading device 200 to test specimen can be changed by adjusting the weight and quantity of counterweight in counterweight device 400 in 400 connections
Power, to realize the measurement to test specimen performance under different load conditions.Leverage 500 further includes balanced weight 520 and induction
Switch 530, balanced weight 520 are connected to the one end of leverage 500 far from counterweight device 400, and balanced weight 520 can neutralize counterweight
Device 400 makes the force balance at the both ends of lever 510 to the loading force of leverage 500, the stationarity of guarantee test machine,
Inductive switch 530 in the present embodiment is set there are two and distribution, inductive switch 530 can examine the position of lever 510 up and down
It surveys, two inductive switches 530 respectively correspond the high-low limit position of 510 scope of activities of lever, therefore can by inductive switch 530
Quickly judge the stress state of testing machine, it is easy to operate.
Referring to Fig. 3, the heating device 300 in the present embodiment includes heating furnace 310, the inner hollow of heating furnace 310, load
Device 200 is passed through from the inside of heating furnace 310, so that test specimen, which is located in heating furnace 310, carries out heat temperature raising, heating device 300
Further include several heater strips, be equipped with heating wire inside heating furnace 310, which connect with the heating wire in heating furnace 310, leads to
Heater strip is conducted with heating wire after electricity, so that heating wire heats up, the electric heating process of heating furnace 310 is realized, in the present embodiment
Heating device 300 be equipped with temperature sensor, the temperature of heating furnace 310 and test specimen can be measured, guarantee test specimen measurement
Accuracy.
Preferably, the heating furnace 310 in the present embodiment is connect with guiding device 800, and guiding device 800 includes several guide rails
810 are installed on support column 130 and parallel with support column 130, sliding block 820 and the company of heating furnace 310 with sliding block 820, guide rail 810
Connect, sliding block 820 can opposite rail 810 moved, so that heating furnace 310 is under the guiding role of guiding device 800, along vertical
Direction is mobile, and is located at test specimen on the central axis of heating furnace 310, guarantees the consistency of each spot temperature of test specimen, mentions
High measurement accuracy.Heating furnace 310 in the present embodiment is cylindrical, and guide rail 810 is respectively equipped with one in the two sides of heating furnace 310
A, the upper and lower end face of the heating furnace 310 of every side is connected separately with a sliding block 820, and two sliding blocks 820 of same end face are located at
The end face it is same diametrically, guarantee the mobile stationarity in 310 upper and lower end face of heating furnace.In heating furnace 310 in the present embodiment
Outer surface is additionally provided with a scale needle 320, and guide rail 810 is equipped with scale 811, passes through the opposite position of the scale needle 320 and scale 811
It sets, heating furnace 310 is positioned, be located at test specimen at the center of heating furnace 310.
Referring to Fig. 4, the loading device 200 in the present embodiment includes upper connecting rod 210 and lower pull rod 220, upper connecting rod 210 and thick stick
Lever apparatus 500 connects, and lower pull rod 220 connect with elevation and subsidence regulating device 700, test specimen be placed in upper connecting rod 210 and lower pull rod 220 it
Between, upper connecting rod 210 applies load to test specimen under the active force that lever 510 is given, and test specimen is deformed under the action of load.
Preferably, it is equipped with locating piece 230 in upper connecting rod 210 and lower pull rod 220 one end close to each other in the present embodiment, the locating piece
230 center is equipped with location hole, and test specimen can be inserted into the positioning hole, prevent test specimen from falling off in the detection process, influences test knot
Fruit, and guarantee that test specimen and upper connecting rod 210 and lower pull rod 220 are concentric, convenient for the positioning to test specimen in heating furnace 310.
Loading device 200 further includes the first pull rod 240, the second pull rod 250 and detection piece 280, the first pull rod 240 and pull-up
Bar 210 connects, and the second pull rod 250 is connect with lower pull rod 220, and the lower end of the first pull rod 240 and the second pull rod 250 is equipped with idler wheel
260, the lower end of lower pull rod 220 is equipped with the sliding rail 270 slided for idler wheel 260, and detection piece 280 is equipped with fixing end 282 and extension end
281, the first pull rod 240 is connect with extension end 281, and the second pull rod 250 is connect with fixing end 282, and test specimen produces during the test
Change shape, so that upper connecting rod 210 is mobile relative to lower pull rod 220, and then drives extension end 281 mobile relative to fixed end 282, passes through
The rate of travel of extension end 281 and fixing end 282 obtains the deflection of test specimen, and passes through the cooperation of idler wheel 260 and sliding rail 270
Guarantee the linear relative movement of extension end 281 and fixing end 282, improves measurement accuracy.
Referring to Fig. 5, the buffer unit 600 in the present embodiment includes surge tank 610 and portable pillar 620, and counterweight device 400 wraps
The counterweight 410 of multiple and different weight is included, which can be arranged on support rod 420, and the inside of surge tank 610 is equipped with hollow
Cavity, oil liquid is equipped in the cavity, one end of portable pillar 620 is connect with support rod 420, and the other end of portable pillar 620 is inserted into
In surge tank 610, in test specimen fracture, counterweight 410 pushes portable pillar 620, and portable pillar 620 is inserted into oil liquid, and oil liquid gives work
The upward reaction force of dynamic column 620, slows down impact of the counterweight 410 to pedestal 110, plays the role of buffering decompression, avoids testing
Machine damage influences test.
Preferably, the present embodiment is equipped with block 621 in the outer surface of portable pillar 620, and block 621 is equipped with perforative oilhole
622, portable pillar 620 is passed through out of block 621 and is contacted with oil liquid, and portable pillar 620 is additionally provided with baffle 623 above block, gear
Form an oil pocket between plate 623 and block 621, portable pillar 620 pushes under the action of counterweight 410 to be entered in oil liquid, oil liquid from
Oilhole 622 on block 621 is gone out, and into oil pocket, 623 pairs of the baffle oil liquid entered in oil pocket stop, and avoids oil liquid
It splashes in surge tank 610, by the way that oilhole 622 is arranged, keeps movement of the portable pillar 620 in oil liquid more steady, prevent activity
The movement of column 620 causes pedestal 110 to generate vibration, improves the precision of test.
Referring to Fig. 6, the elevation and subsidence regulating device 700 in the present embodiment includes lifting shaft 710 and lifting seat 720, lifting seat 720
Be installed on pedestal 110, lifting shaft 710 passes through lifting seat 720, and can OQ t seat 720 it is mobile, the upper end of lifting shaft 710
It is connect with lower pull rod 220, upper connecting rod 210 and lower pull rod can be changed in the relative position by adjusting lifting shaft 710 and lifting seat 720
The distance between 220, convenient for the installation and positioning of test specimen.
Preferably, the lower end of lifting shaft 710 is also connected with guide rod 730, and one end of guide rod 730 is equipped with a linear bearing
740, which is located in a sliding slot 750, and the edge of linear bearing 740 is contacted with the inner wall of sliding slot 750, linear axis
Holding 740 can be mobile relative to the sliding slot 750, so that lifting shaft 710 is under the guiding role of guide rod 730, along the vertical direction
It is mobile, optimize the steering capability and lifting accuracy of elevation and subsidence regulating device 700.
It is to be illustrated to the preferable implementation of the utility model, but the invention is not limited to the reality above
Example is applied, those skilled in the art can also make various equivalent variations without departing from the spirit of the present invention
Or replacement, these equivalent deformations or replacement are all included in the scope defined by the claims of the present application.
Claims (10)
1. a kind of long-time creep test machine, which is characterized in that including,
Rack, the rack include pedestal and support base, are connected between the support base and pedestal by several support columns；
Loading device, the loading device include upper connecting rod and lower pull rod, the upper connecting rod and lower pull rod one end close to each other
For clamping test pieces；
Counterweight device, the counterweight device are equipped with support rod, can wear multiple counterweights on the support rod；
Leverage, the leverage are installed on the support base, the head and the tail both ends of the leverage respectively with it is described
Counterweight device is connected with loading device；
Buffer unit, the buffer unit are connect with the counterweight device, and the buffer unit includes surge tank and motion bar, institute
It states and is equipped with oil liquid in surge tank, one end of the motion bar is connect with the counterweight device, and the other end of the motion bar is placed in
In the surge tank, and can be relative to the surge tank movement so that the motion bar passes in and out in the oil liquid；
Heating device, the heating device include heating furnace, and the center of the heating furnace is run through, the upper connecting rod and lower pull rod from
It is passed through in the heating furnace, so that the test specimen is located at the inside heating furnace.
2. long-time creep test machine according to claim 1, which is characterized in that a block is additionally provided in the surge tank,
The motion bar is passed through inside the block and is inserted into the surge tank, and the motion bar can be mobile relative to the block,
The block is equipped with several perforative oilholes.
3. long-time creep test machine according to claim 2, which is characterized in that the motion bar is located in the surge tank
One end be connected with baffle, the baffle is located at the top of the block, between the block and the baffle formed one buffering
Chamber, the oilhole are connected to the cushion chamber.
4. long-time creep test machine according to claim 1, which is characterized in that the upper connecting rod and lower pull rod are close to each other
One end be equipped with locating piece, the locating piece is equipped with location hole, and the location hole and the upper connecting rod and lower pull rod are coaxial
The heart.
5. long-time creep test machine according to claim 1, which is characterized in that the loading device is additionally provided with detection group
Part, the detection components include the first pull rod, the second pull rod and detection piece, and the detection piece is equipped with the extension end that can be mutually shifted
And fixing end, first pull rod both ends are connect with the upper connecting rod and the extension end respectively, the both ends of second pull rod
It is connect respectively with the lower pull rod and fixing end.
6. long-time creep test machine according to claim 5, which is characterized in that first pull rod and the detection piece connect
One end that the one end and second pull rod connect is connect with the detection components is equipped with idler wheel, and second pull rod is far from institute
The side for stating the first pull rod is equipped with the sliding rail for supplying the roller-coaster.
7. long-time creep test machine according to claim 1, which is characterized in that the heating device further includes guiding group
Part, the guidance set include the guide rail and several sliding blocks for being respectively arranged at the heating furnace two sides, the sliding block with it is described
Heating furnace is affixed, and the sliding block can slide along the guide rail and the heating furnace is driven to be moved.
8. long-time creep test machine according to claim 7, which is characterized in that the sliding block is above and below the heating furnace
There are two end face is respectively set, the heating furnace is cylindrical, and the sliding block on each end face is respectively positioned on the heating furnace and exists
The end face it is same diametrically.
9. long-time creep test machine according to claim 1, which is characterized in that it further include elevation and subsidence regulating device, the liter
Falling tone regulating device includes lifting shaft and lifting seat, and the lifting seat is installed on the pedestal, one end of the lifting shaft and institute
Lower pull rod connection is stated, the lifting shaft passes through the lifting seat and can be mobile relative to the lifting seat, to drive the drop-down
Bar is moved.
10. long-time creep test machine according to claim 9, which is characterized in that the leverage further includes balanced weight
And sensor, the balanced weight and sensor are respectively arranged on the both ends of the leverage, the heating device further includes several
Heater strip, the heater strip are connect with the heating furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822028017.4U CN209570460U (en) | 2018-12-04 | 2018-12-04 | A kind of long-time creep test machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822028017.4U CN209570460U (en) | 2018-12-04 | 2018-12-04 | A kind of long-time creep test machine |
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| CN209570460U true CN209570460U (en) | 2019-11-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945752A (en) * | 2021-02-05 | 2021-06-11 | 宁夏大学 | Device for testing high-temperature creep property of metal and testing method using device |
| CN113865985A (en) * | 2021-08-19 | 2021-12-31 | 中国原子能科学研究院 | Creep/endurance testing machine suitable for radioactive sample |
-
2018
- 2018-12-04 CN CN201822028017.4U patent/CN209570460U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945752A (en) * | 2021-02-05 | 2021-06-11 | 宁夏大学 | Device for testing high-temperature creep property of metal and testing method using device |
| CN113865985A (en) * | 2021-08-19 | 2021-12-31 | 中国原子能科学研究院 | Creep/endurance testing machine suitable for radioactive sample |
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