CN107884165B - A kind of test platform of convertible thermal shock and heat fatigue - Google Patents
A kind of test platform of convertible thermal shock and heat fatigue Download PDFInfo
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- CN107884165B CN107884165B CN201710883299.3A CN201710883299A CN107884165B CN 107884165 B CN107884165 B CN 107884165B CN 201710883299 A CN201710883299 A CN 201710883299A CN 107884165 B CN107884165 B CN 107884165B
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- infrared radiation
- radiation thermometer
- test specimen
- test
- incubation cavity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The present invention relates to the test platforms of a kind of convertible thermal shock and heat fatigue, belong to test article technical field.The present invention includes testing stand bracket, infrared radiation thermometer I, test specimen I, incubation cavity bracket, heating device, test specimen II, incubation cavity, petticoat pipe, smoke exhaust pipe, high-temperature pipe exhaust fan, fixture I, infrared radiation thermometer II, oscillating cylinder, linear guide, position sensor I, straight line cylinder, sliding block, position sensor II, infrared radiation thermometer III, T-bar, fixture II, cooling device, controller；Two test specimens can be tested simultaneously, and one is being heated another in cooling, and two test specimens spin upside down 180 degree under the drive of tilt cylinder, so that two test specimens rotate exchange station with workbench under the drive of tilt cylinder.The present invention is simple, practical, work efficiency is high, and when internal combustion engine heat-shock and heat fatigue simulation test research has not only saved testing expenses, also greatly shortens the R&D cycle of related components.
Description
Technical field
The present invention relates to the test platforms of a kind of convertible thermal shock and heat fatigue, are applied to mechanical heated component intensity
The test platform of examination belongs to test article technical field.
Background technique
Auto industry is one of most important industry of developed country, and the heart of automobile is internal combustion engine, with science
Technology is maked rapid progress, and engine develops towards high power and high rotary speed direction, as engine speed and the continuous of power mention
Height, outburst pressure and temperature also can be mentioned constantly in combustion chamber.The increase of explosion pressure so that piston, cylinder cap, exhaust pipe, turbine,
The thermic load of cylinder sleeve increases, and generates biggish thermal stress and thermal deformation, under the action of thermic load, the piston of engine, cylinder cap,
Exhaust pipe, turbine, the intensity of cylinder jacket material and hardness sharply decline, and decline its reliability and service life, are more easier
Existing crackle, cracking, the problems such as even fracture, and when these heated components do not make corresponding technological improvement or improve it is improper,
Such as unreasonable structural design, cooling capacity are insufficient, material calorific intensity deficiency, these heated components will be unable to satisfaction use and want
Seek the reliability and durability that will seriously affect complete machine.Therefore thermal shock (fatigue) research to test specimen must be increased.
Summary of the invention
The technical problem to be solved by the present invention is it is flat to provide a kind of test applied to the examination of test specimen heat-shock intensity
Platform, structure is simple, practical, work efficiency is high.
The technical scheme is that: a kind of test platform of convertible thermal shock and heat fatigue, including testing stand bracket 1,
Infrared radiation thermometer I2, test specimen I3, incubation cavity bracket 4, heating device 5, test specimen II6, incubation cavity 7, petticoat pipe 8, smoke exhaust pipe 9, high temperature
Pipeline exhaust fan 10, fixture I12, infrared radiation thermometer II13, oscillating cylinder 14, linear guide 15, position sensor I16, straight line
Cylinder 17, sliding block 18, position sensor II19, infrared radiation thermometer III20, T-bar 21, fixture II22, cooling device 23, control
Device；
Infrared radiation thermometer I2, heating device 5 are inlaid on 1 wall surface of testing stand bracket, heating device 5 is located at infrared survey
The top warm instrument I2, incubation cavity 7 are fixed on testing stand bracket 1 by incubation cavity bracket 4, and heat preservation is protruded into one end of heating device 5
Chamber 7, cooling device 23 is mounted on incubation cavity 7 in the following, two piece fixture I12, piece fixtures are installed in the both ends of T-bar 21
II22, piece fixture I12, piece fixture II22 clamp test specimen II6, test specimen I3 respectively, and the other end connection of T-bar 21 swings gas
Cylinder 14, oscillating cylinder 14 can overturn 180 degree, protrude into one in test specimen II6, test specimen I3 in incubation cavity 7, another is protruded into
In cooling device 23, infrared radiation thermometer II13 is installed on the straight-bar on 14 side of oscillating cylinder, oscillating cylinder 14 is fixed on sliding block 18
Side, sliding block 18 are mounted in linear guide 15 and connect with straight line cylinder 17, and the both ends difference installation site of linear guide 15 passes
Infrared radiation thermometer III20 is installed in the lower part of sensor I16 and position sensor II19, linear guide 15, and bench-top is petticoat pipe
8, petticoat pipe connects smoke exhaust pipe 9, and the head of smoke exhaust pipe connects a high-temperature pipe exhaust fan 10, infrared radiation thermometer I2, heating device 5,
High-temperature pipe exhaust fan 10, oscillating cylinder 14, position sensor I16, position sensor II19, is swung infrared radiation thermometer II13
Cylinder 14, straight line cylinder 17, infrared radiation thermometer III20 and cooling device 23 are connect with controller.
Preferably, equal inlaid heat-insulating layer 11 on the inside of the piece fixture I12, piece fixture II22.
Specifically, the infrared radiation thermometer I2 and infrared radiation thermometer III20 is respectively used to measurement workpiece in cooling station
When at the top and bottom of temperature, infrared radiation thermometer II13 measure test specimen workpiece bottom in heating station temperature, when three survey
When warm instrument measured temperature reaches setting value, straight line cylinder 17 is slided with movable slider 18, and then oscillating cylinder 14 overturns 180 degree,
Make test specimen II6, test specimen I3 reversing of position.
Preferably, the heating device 5 is fixed on the wall surface of testing stand bracket 1 by bolt and nut.
Preferably, the oscillating cylinder 14 is connect by bolt and nut with the sliding block 18 on guide rail 15.
The course of work of the invention are as follows: test platform can test two test specimens simultaneously, and one is heated in heating station,
Another is cooled in cooling station simultaneously.Before test, test specimen I3 and test specimen II6 are first separately fixed at fixture II22 and fixture
On I12, sliding block 18 is contacted with position sensor I16.
Circulation starts for the first time, and controller control straight line cylinder 17 pushes sliding block 18 to move downward, and arrives position sensor II19
Stop, at this point, test specimen I3 is in incubation cavity 7, controller controls heating device 5 and works, when infrared radiation thermometer II13 is measured
When the temperature of test specimen I3 reaches setting value, controller controls 5 break-off of heating device, and straight line cylinder 17 starts drag sliding block 18
It moving right, the stop motion when moving at position sensor I16, controller receives the signal of position sensor I16, into
And control oscillating cylinder 14 and all components on T-bar 21 and T-bar is driven to rotate 180 degree, when being rotated in place, controller control
Straight line cylinder 17 pushes sliding block 18 to move downward, the stop motion when moving at position sensor II19, at this point, at test specimen I3
In cooler 23, test specimen II6 is in incubation cavity 7, and cold and hot station exchange is completed, and circulation terminates for the first time.
Second of circulation starts, and controller control heating device 5, which is reworked, heats test specimen II6, the logical pressure of cooling device 23
Contracting air cools down test specimen I3.When test specimen I3 reaches cooling and requires, cooler 23 suspends logical compressed air, sets when test specimen II6 reaches
When fixed heating requirements, controller controls 5 break-off of heating device.Heating requirements meet simultaneously with cooling requirement, controller
Control straight line cylinder 17 pulls sliding block 18 to start to move right, the stop motion when moving at position sensor I16, controller
The signal of position sensor I16 is received, and then controls oscillating cylinder 14 and all components on T-bar 21 and T-bar is driven to revolve
Turnback, when being rotated in place, controller control straight line cylinder 17 pushes sliding block 18 to move downward, when moving to position sensor
Stop motion when at II19, at this point, test specimen II6 is in cooler 23, test specimen I3 is in incubation cavity 7, hands over test specimen again
Change heating station and cooling station.Second of circulation terminates.
It is constantly recycled with this, until reaching the cycle-index of setting, off-test.
The beneficial effects of the present invention are: this experiment porch is simple, compact, practical, energy saving, work efficiency is high, test specimen by
Two groups of test specimens can be tested simultaneously when hot components thermal shock (fatigue) simulation test research；It is rotated using a direct acting and one
The exchange that can complete station keeps structure more compact；Using contactless thermometry, when shortening test preparation
Between, short form test preparatory process；It is cooled down using compressed air, energy conservation and environmental protection, experimental enviroment more cleans；Incubation cavity make by
The environment temperature of warmware greatly improves, and the thermal efficiency also greatly improves, and has not only saved testing expenses, has also greatly shortened correlation
The test period of test specimen.
Detailed description of the invention
Fig. 1 is overall structure figure of the invention；
Fig. 2 is that Fig. 1 removes the top view after petticoat pipe 8.
Each label in figure are as follows: testing stand bracket -1, infrared radiation thermometer I-2, test specimen I-3, incubation cavity bracket -4, heating dress
Set -5, test specimen II-6, incubation cavity -7, petticoat pipe -8, smoke exhaust pipe -9, high-temperature pipe exhaust fan -10, thermal insulation layer -11, fixture I-12,
Infrared radiation thermometer II-13, oscillating cylinder -14, linear guide -15, position sensor I1-6, straight line cylinder -17, sliding block -18, position
Set sensor II-19, infrared radiation thermometer III-20, T-bar -21, fixture II-22, cooling device -23.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the present invention is further illustrated.
Embodiment 1: as shown in Figs. 1-2, a kind of test platform of convertible thermal shock and heat fatigue, including testing stand bracket
1, infrared radiation thermometer I2, test specimen I3, incubation cavity bracket 4, heating device 5, test specimen II6, incubation cavity 7, petticoat pipe 8, smoke exhaust pipe 9, height
It is warm pipeline exhaust fan 10, fixture I12, infrared radiation thermometer II13, oscillating cylinder 14, linear guide 15, position sensor I16, straight
Line cylinder 17, sliding block 18, position sensor II19, infrared radiation thermometer III20, T-bar 21, fixture II22, cooling device 23, control
Device processed；
Infrared radiation thermometer I2, heating device 5 are inlaid on 1 wall surface of testing stand bracket, heating device 5 is located at infrared survey
The top warm instrument I2, incubation cavity 7 are fixed on testing stand bracket 1 by incubation cavity bracket 4, and heat preservation is protruded into one end of heating device 5
Chamber 7, cooling device 23 is mounted on incubation cavity 7 in the following, two piece fixture I12, piece fixtures are installed in the both ends of T-bar 21
II22, piece fixture I12, piece fixture II22 clamp test specimen II6, test specimen I3 respectively, and the other end connection of T-bar 21 swings gas
Cylinder 14, oscillating cylinder 14 can overturn 180 degree, protrude into one in test specimen II6, test specimen I3 in incubation cavity 7, another is protruded into
In cooling device 23, infrared radiation thermometer II13 is installed on the straight-bar on 14 side of oscillating cylinder, oscillating cylinder 14 is fixed on sliding block 18
Side, sliding block 18 are mounted in linear guide 15 and connect with straight line cylinder 17, and the both ends difference installation site of linear guide 15 passes
Infrared radiation thermometer III20 is installed in the lower part of sensor I16 and position sensor II19, linear guide 15, and bench-top is petticoat pipe
8, petticoat pipe connects smoke exhaust pipe 9, and the head of smoke exhaust pipe connects a high-temperature pipe exhaust fan 10, infrared radiation thermometer I2, heating device 5,
High-temperature pipe exhaust fan 10, oscillating cylinder 14, position sensor I16, position sensor II19, is swung infrared radiation thermometer II13
Cylinder 14, straight line cylinder 17, infrared radiation thermometer III20 and cooling device 23 are connect with controller.
The data that three temperature measurers measure are transmitted to controller, and controller controls heating device 5, high-temperature pipe exhaust fan
10, the work of oscillating cylinder 14, straight line cylinder 17, cooling device 23.Controller is controlled according to the data that three temperature measurers measure
Straight line cylinder 17 can be moved left and right with movable slider 18 on guide rail 15.When sliding block 18 and position sensor I16 and position sensor
After II19 contact, information is directly transmitted to controller by position sensor I16 and position sensor II19.
The incubation cavity 7 is the station that test specimen I3 and test specimen II6 is heated, and heating device 5 is heat source.Cooling device 23 is examination
Part I3 and test specimen II6 cooling station, compressed air is cooling medium.The petticoat pipe 8, smoke exhaust pipe 9 and high-temperature pipe exhaust fan
10 can extract the hot-air inside testing stand, guarantee infrared radiation thermometer I2, infrared radiation thermometer II13, oscillating cylinder 14, position
Sensor I16, straight line cylinder 17, position sensor II19, infrared radiation thermometer III20 have normal operating ambient temperature.
The straight line cylinder 17 can be moved left and right with movable slider 18 on guide rail 15, when touching position sensor I16
With position sensor II19 stop motion, achieve the effect that workpiece enters and exit heating and cooling station.
Further, equal inlaid heat-insulating layer 11 on the inside of the piece fixture I12, piece fixture II22, can to try
When part fixture I12, piece fixture II22 are heated in incubation cavity 7, test specimen is protected.
Further, the infrared radiation thermometer I2 and infrared radiation thermometer III20 is respectively used to measurement workpiece in bosher
Temperature at the top and bottom of when position, infrared radiation thermometer II13 measures the temperature of test specimen workpiece bottom in heating station, when three
When temperature measurer measured temperature reaches setting value, straight line cylinder 17 is slided with movable slider 18, and then controller controls oscillating cylinder
14 overturning 180 degrees make test specimen I3 test specimen II6 exchange position realize the exchange of heating station and cooling station respectively.
Further, the heating device 5 is fixed on the wall surface of testing stand bracket 1 by bolt and nut, structure letter
It is single, it is easy for installation.
Further, the oscillating cylinder 14 is connect by bolt and nut with the sliding block 18 on guide rail 15, and structure is simple,
It is easy for installation.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, structure not practical to this
Think and protection scope is defined, without departing from the inventive concept of the premise, ordinary engineering and technical personnel is to this in this field
The all variations and modifications that the technical solution of invention is made, should all be within protection scope of the present invention.
Claims (5)
1. a kind of test platform of convertible thermal shock and heat fatigue, it is characterised in that: including testing stand bracket (1), infrared survey
Warm instrument I(2), test specimen I(3), incubation cavity bracket (4), heating device (5), test specimen II(6), incubation cavity (7), petticoat pipe (8), smoke evacuation
Manage (9), high-temperature pipe exhaust fan (10), piece fixture I(12), infrared radiation thermometer II(13), oscillating cylinder (14), linear guide
(15), position sensor I(16), straight line cylinder (17), sliding block (18), position sensor II(19), infrared radiation thermometer III
(20), T-bar (21), piece fixture II(22), cooling device (23), controller；
Be inlaid with infrared radiation thermometer I(2 on testing stand bracket (1) wall surface), heating device (5), heating device (5) be located at it is red
Outer temperature measurer I(2) top, incubation cavity (7) is fixed on testing stand bracket (1) by incubation cavity bracket (4), heating device (5)
One end protrude into incubation cavity (7), cooling device (23) is mounted on incubation cavity (7) in the following, examination is installed at the both ends of T-bar (21) respectively
Part fixture I(12) and piece fixture II(22), piece fixture I(12), piece fixture II(22) clamp test specimen II(6 respectively), examination
Part I(3), the other end of T-bar (21) connects oscillating cylinder (14), and oscillating cylinder (14) can overturn 180 degree, make test specimen II
(6), test specimen I(3) in one protrude into incubation cavity (7), another is protruded into cooling device (23), and oscillating cylinder (14) is other
Infrared radiation thermometer II(13 is installed on straight-bar), oscillating cylinder (14) is fixed on above sliding block (18), and sliding block (18) is mounted on straight line
It is connect in guide rail (15) and with straight line cylinder (17), installation site sensor I(16 is distinguished at the both ends of linear guide (15)) and position
Set sensor II(19), infrared radiation thermometer III(20 is installed in the lower part of linear guide (15)), bench-top is petticoat pipe (8), cigarette
Cover connection smoke exhaust pipe (9), the head of smoke exhaust pipe meets a high-temperature pipe exhaust fan (10), infrared radiation thermometer I(2), heating device
(5), high-temperature pipe exhaust fan (10), infrared radiation thermometer II(13), oscillating cylinder (14), position sensor I(16), position sensing
Device II(19), straight line cylinder (17), infrared radiation thermometer III(20) and cooling device (23) connect with controller.
2. the test platform of a kind of convertible thermal shock and heat fatigue according to claim 1, it is characterised in that: described
Piece fixture I(12), piece fixture II(22) inside inlaid heat-insulating layer (11).
3. the test platform of a kind of convertible thermal shock and heat fatigue according to claim 1, it is characterised in that: described
Infrared radiation thermometer I(2) and infrared radiation thermometer III(20) be respectively used to measurement workpiece in cooling station at the top and bottom of temperature
Degree, infrared radiation thermometer II(13) measurement test specimen workpiece bottom in heating station temperature, when three temperature measurer measured temperatures are equal
When reaching setting value, straight line cylinder (17) band movable slider (18) is slided, and then oscillating cylinder (14) overturns 180 degree, makes test specimen II
(6), test specimen I(3) reversing of position.
4. the test platform of a kind of convertible thermal shock and heat fatigue according to claim 1, it is characterised in that: described
Heating device (5) is fixed on the wall surface of testing stand bracket (1) by bolt and nut.
5. the test platform of a kind of convertible thermal shock and heat fatigue according to claim 1, it is characterised in that: described
Oscillating cylinder (14) is connect by bolt and nut with the sliding block (18) on linear guide (15).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710883299.3A CN107884165B (en) | 2017-09-26 | 2017-09-26 | A kind of test platform of convertible thermal shock and heat fatigue |
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| CN201710883299.3A CN107884165B (en) | 2017-09-26 | 2017-09-26 | A kind of test platform of convertible thermal shock and heat fatigue |
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| CN107884165A CN107884165A (en) | 2018-04-06 |
| CN107884165B true CN107884165B (en) | 2019-07-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109855850A (en) * | 2018-12-22 | 2019-06-07 | 昆明理工大学 | A kind of Piston Thermal Fatigue Test platform of rotary lifting-type |
| CN109708984B (en) * | 2018-12-24 | 2021-05-18 | 昆明理工大学 | Variable crank thermal fatigue test bed for high-frequency heating test piece and working method of variable crank thermal fatigue test bed |
| CN114720257B (en) * | 2022-03-18 | 2023-07-21 | 昆明理工大学 | Component material thermal fatigue test method based on reduced scale sample |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792076A (en) * | 2014-01-17 | 2014-05-14 | 昆明理工大学 | Simulator test bed for thermal shock and thermal fatigue of parts affected by heat |
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| JP5896555B2 (en) * | 2012-02-22 | 2016-03-30 | エスペック株式会社 | Environmental test equipment |
| CN203572731U (en) * | 2013-12-05 | 2014-04-30 | 中国核动力研究设计院 | Non-transmission simple thermal fatigue test machine |
| CN103674753B (en) * | 2013-12-09 | 2015-12-23 | 昆明理工大学 | The test platform of a kind of thermal shock and heat fatigue |
| CN203745188U (en) * | 2014-01-17 | 2014-07-30 | 昆明理工大学 | Test bench for simulating heat shock and heat fatigue of heated component |
| CN204855326U (en) * | 2015-07-02 | 2015-12-09 | 广州东之旭试验设备有限公司 | Rotatory hand -basket device in area |
| CN106383022A (en) * | 2016-09-13 | 2017-02-08 | 中国北方发动机研究所(天津) | Multifunctional thermic load fatigue testing system |
| CN206132382U (en) * | 2016-11-08 | 2017-04-26 | 广西玉柴机器股份有限公司 | Engine temperature saver cold and hot impact test platform |
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| CN103792076A (en) * | 2014-01-17 | 2014-05-14 | 昆明理工大学 | Simulator test bed for thermal shock and thermal fatigue of parts affected by heat |
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