CN221945785U - Composite material temperature cycle fatigue testing device - Google Patents
Composite material temperature cycle fatigue testing device Download PDFInfo
- Publication number
- CN221945785U CN221945785U CN202323412604.0U CN202323412604U CN221945785U CN 221945785 U CN221945785 U CN 221945785U CN 202323412604 U CN202323412604 U CN 202323412604U CN 221945785 U CN221945785 U CN 221945785U
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- test box
- composite material
- material temperature
- cycle fatigue
- temperature cycle
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- 238000009661 fatigue test Methods 0.000 title claims abstract description 30
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 99
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 239000012530 fluid Substances 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 230000007613 environmental effect Effects 0.000 claims description 22
- 238000002955 isolation Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 abstract description 10
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 10
- 239000002826 coolant Substances 0.000 description 4
- 239000000110 cooling liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a composite material temperature cycle fatigue testing device, which relates to the technical field of material temperature fatigue testing and comprises a bottom plate and environment test boxes which are oppositely arranged on the bottom plate, wherein one environment test box is used for heating a sample, and the other environment test box is used for cooling the sample. Due to the fact that the sealing rotary drum is arranged, when the samples alternately enter the hot end environment test box and the cold end environment test box back and forth, through grooves of the hot end environment test box and the cold end environment test box can be intermittently blocked by the outer surface of the sealing rotary drum, the environment test box is in a sealing state when the samples are not heated or cooled, temperature fluid and air inside the environment test box are prevented from being in long-time contact, the accuracy of detection test is influenced by temperature fluid temperature change too fast, meanwhile, the scheme is simple in structure, easy to manufacture and use, and practicability is improved.
Description
Technical Field
The utility model relates to the technical field of material temperature fatigue test, in particular to a composite material temperature cycle fatigue test device.
Background
In the aircraft operation management process, the damage and the damage of the components can gradually occur under the influence of stress, environment, temperature and other factors, one of the main forms of the damage is material temperature fatigue damage, a natural cooling mode is generally adopted in the cooling process of the material in a high-temperature environment box in the past, but the cooling time of the method is longer, so that the test time is long, and the temperature cycle fatigue test of the material is difficult to realize.
In order to solve the technical problems, the Chinese patent with the bulletin number of CN111855469B discloses a temperature cycle fatigue testing device, which comprises a double-freedom-degree actuating platform, an upper computer, a compressor cooling system and a test stand; the test rack is a multi-layer cabinet body; the upper computer is electrically connected with the compressor cooling system and the electric control part on the double-freedom-degree actuating platform, wherein the double-freedom-degree actuating platform comprises a rack, a supporting plate, a horizontal screw rod, a vertical screw rod, a Y-axis motor, a Z-axis motor, a pressure sensor, a sample pre-tightening motor, a cold end test environment groove and a hot end test environment groove.
The principle is as follows: through setting up two experimental environment grooves of cold junction experimental environment groove and hot junction experimental environment groove and cooling and heating the sample, the reuse anchor clamps carry out the centre gripping to the sample, and the anchor clamps realize through Y axle motor and Z axle motor cooperation corresponding lead screw and slider, ensure that the fixed sample of anchor clamps can back-and-forth movement and elevating movement to in putting the sample cyclic reciprocation in cold junction experimental environment groove and the hot junction experimental environment groove, fatigue performance test under the temperature alternating load to the sample. However, the above prior art has the following problems: because the opening of two experimental environment grooves all is normally open, the inside temperature fluid in experimental environment groove takes place to contact with air for coolant liquid temperature in the experimental environment groove of cold junction rises, and the heating liquid temperature in the experimental environment groove of hot junction then descends, and both are close room temperature gradually, in order to solve this problem, this prior art need set up heating rod and compressor cooling system and last controlling the temperature to two experimental environment grooves, this undoubtedly has increased the electric power energy consumption of device, has increased the cost expense of experiment.
Disclosure of utility model
The utility model aims to provide a composite material temperature cycle fatigue testing device, which aims to solve the technical problem that the temperature change of temperature fluid is faster to influence experimental detection because the temperature fluid in an experimental environment tank of the existing material temperature cycle fatigue testing device in the market is contacted with air due to the fact that the upper end of the experimental environment tank is normally open.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a combined material temperature cycle fatigue testing device, includes the bottom plate and locates relatively environmental test case on the bottom plate, one of them environmental test case is used for heating the sample, another one environmental test case is used for cooling the sample, combined material temperature cycle fatigue testing device still includes:
The device comprises a sealing rotary drum and a driving assembly, wherein the sealing rotary drum is positioned between two environment test boxes, the driving assembly is arranged on a bottom plate and used for driving the sealing rotary drum to rotate, a through groove is formed in one side of each environment test box, the side wall of each through groove is attached to the side surface of each sealing rotary drum, and an opening is formed in the side surface of each sealing rotary drum;
The clamping assembly is arranged in the opening and used for clamping a sample in one of the environmental test boxes so that the sealing rotary drum drives the sample to rotate into the other environmental test box.
As a preferable technical scheme of the utility model, the driving assembly comprises a bracket arranged on the bottom plate, a motor I arranged on the bracket and a rotating shaft with one end fixedly connected with an output shaft of the motor I, wherein the rotating shaft is arranged on the central axis of the sealing rotary drum.
As a preferred embodiment of the present utility model, the clamping assembly includes:
A separator disposed within the opening;
The side surface of the clamp body facing the outside of the sealing rotary drum is provided with a clamping groove;
The clamping part is arranged in the clamping groove relatively, and comprises a first electric push rod arranged on the inner wall of the clamping groove and a clamping plate fixedly connected with an output shaft of the first electric push rod.
As a preferred embodiment of the present utility model, the clamping assembly further includes:
The mounting plates are oppositely arranged on the inner side surfaces of the isolation plates, and the connecting shafts are rotatably arranged between the mounting plates;
the output shaft of the second motor is fixedly connected with one end of the connecting shaft;
the second electric push rod is arranged on the connecting shaft, and an output shaft of the second electric push rod is connected with the clamp body.
As the preferable technical scheme of the utility model, the composite material temperature cycle fatigue testing device further comprises a box cover, and the box cover is hinged with a discharge groove arranged on the environment test box.
As the preferable technical scheme of the utility model, the composite material temperature cycle fatigue testing device also comprises a discharge valve arranged at the lower end of the environmental test chamber.
As a preferable technical scheme of the utility model, the environment test box is filled with heat-conducting fluid, one of the environment test boxes for heating the sample is provided with a heater, and the other environment test box for cooling the sample is provided with a refrigerator.
As a preferable technical scheme of the utility model, a sealing gasket is arranged at the outer edge part of the through groove, and the sealing gasket is attached to the outer surface of the sealing rotary drum.
Compared with the prior art, the utility model has the beneficial effects that:
Due to the fact that the sealing rotary drum is arranged, when the samples alternately enter the hot end environment test box and the cold end environment test box back and forth, through grooves of the hot end environment test box and the cold end environment test box can be intermittently blocked by the outer surface of the sealing rotary drum, the environment test box is in a sealing state when the samples are not heated or cooled, temperature fluid and air inside the environment test box are prevented from being in long-time contact, the accuracy of detection test is influenced by temperature fluid temperature change too fast, meanwhile, the scheme is simple in structure, easy to manufacture and use, and practicability is improved.
Drawings
FIG. 1 is a schematic view of an external perspective structure of the present utility model;
FIG. 2 is a schematic view of the external top view structure of the present utility model;
FIG. 3 is a schematic view of a partially cut-away perspective structure of the present utility model;
FIG. 4 is a schematic perspective view of the spacer and the clamp body of the present utility model;
FIG. 5 is an enlarged schematic view of the structure of FIG. 4A according to the present utility model;
fig. 6 is a schematic perspective view of a hot end environment test chamber according to the present utility model.
In the figure: 1. a bottom plate; 2. a hot end environment test box; 3. a cold end environment test box; 4. a through groove; 5. a sealing gasket; 6. a bracket; 7. a motor I; 8. a rotating shaft; 9. sealing the rotary drum; 10. a partition plate; 11. a mounting plate; 12. a motor II; 13. a connecting shaft; 14. a second electric push rod; 15. a clamp body; 16. a first electrical push rod; 17. a clamping plate; 18. a sample; 19. a discharge groove; 20. a case cover; 21. a discharge valve; 22. a fixed block; 23. and (5) a bolt.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-6, the present utility model provides a technical solution: the utility model provides a combined material temperature cycle fatigue test device, including bottom plate 1 and the environment test box of locating on bottom plate 1 relatively, one of them environment test box is used for heating sample 18, another one is used for cooling sample 18, the fluid of heat conduction is equipped with in the environment test box of one of them is used for heating sample 18, another one is used for cooling sample 18's environment test box is equipped with the refrigerator, specifically, the environment test box includes hot junction environment test box 2 and cold junction environment test box 3, the temperature fluid is heating liquid and coolant respectively, wherein the inside heater that is provided with of hot junction environment test box 2 is used for keeping warm heating liquid, can adopt the heating rod to heat heating liquid, cold junction environment test box 3 is connected with the refrigerator and is used for the cooling coolant, can adopt compressor cooling system to cool down the coolant, combined material temperature cycle fatigue test device still includes:
The device comprises a sealing rotary drum 9 positioned between two environment test boxes and a driving assembly arranged on a bottom plate 1, wherein the driving assembly is used for driving the sealing rotary drum 9 to rotate, the driving assembly comprises a bracket 6 arranged on the bottom plate 1, a first motor 7 arranged on the bracket 6 and a rotating shaft 8 with one end fixedly connected with an output shaft of the first motor 7, the rotating shaft 8 is arranged on a central axis of the sealing rotary drum 9, one side of the environment test box is provided with a through groove 4, the side wall of the through groove 4 is attached to the side surface of the sealing rotary drum 9, and the side surface of the sealing rotary drum 9 is provided with an opening;
The clamping assembly is arranged in the opening and used for clamping the sample 18 in one of the environmental test boxes so that the sealing rotary drum 9 drives the sample 18 to rotate into the other environmental test box; the clamping assembly includes: a partition plate 10 provided in the opening; a clamp body 15 connected with the isolation plate 10, wherein the side surface of the clamp body 15 facing the outside of the sealing rotary drum 9 is provided with a clamping groove; the clamping part is arranged in the clamping groove relatively and comprises a first electric push rod 16 arranged on the inner wall of the clamping groove and a clamping plate 17 fixedly connected with an output shaft of the first electric push rod 16; the clamping assembly further comprises: the mounting plates 11 are oppositely arranged on the inner side surfaces of the isolation plates 10, and the connecting shafts 13 are rotatably arranged between the mounting plates 11; the second motor 12 is arranged on one mounting plate 11, and an output shaft of the second motor 12 is fixedly connected with one end of the connecting shaft 13; the second electric push rod 14 is arranged on the connecting shaft 13, and an output shaft of the second electric push rod 14 is connected with the clamp body 15;
By adopting the technical scheme, the temperature fluid in the environment test box is prevented from being in contact with air for a long time, so that the temperature fluctuation of the temperature fluid affects the accuracy of experimental detection, when the environment test box is used, firstly, a sample 18 is placed between the clamping plates 17, the first electric push rod 16 is started to drive the clamping plates 17 to fold so as to fix the sample 18, then a heater in the hot end environment test box 2 is started to heat heating liquid, a refrigerator is started to cool cooling liquid in the cold end environment test box 3, after the temperature of the two reaches a preset value, the first motor 7 is started to drive the rotating shaft 8 to rotate, the rotating shaft 8 drives the sealing rotary drum 9 to rotate so as to drive the isolation plate 10 to synchronously rotate, the isolation plate 10 drives the second electric push rod 14 to rotate, the second electric push rod 14 drives the clamp body 15 to rotate so as to align the clamp body 15 with the through groove 4 of the hot end environment test box 2, starting the second electric push rod 14 to extend to drive the sample 18 in the clamp body 15 to enter the hot end environment test box 2 to contact with heating liquid through the through groove 4, resetting the second electric push rod 14 after a period of time, driving the isolation plate 10 of the sealing rotary drum 9 to reversely rotate to the cold end environment test box 3 by the first motor 7, extending the second electric push rod 14 to extend the sample 18 into the cold end environment test box 3 to contact with cooling liquid, after a period of time, reducing the sample 18 to a required temperature, cyclically reciprocating in this way, thereby completing the fatigue performance test of the sample 18 under the temperature alternating load, and due to the sealing rotary drum 9, when the sample 18 alternately enters the hot end environment test box 2 and the cold end environment test box 3 back and forth, the through grooves 4 of the hot end environment test box 2 and the cold end environment test box 3 can be intermittently blocked by the outer surfaces of the sealing rotary drum 9, the environment test box is in a sealed state when the sample 18 is not heated or cooled, so that the problem that the accuracy of the detection test is affected due to too fast temperature change of the temperature fluid caused by long-time contact of the temperature fluid in the environment test box with air is avoided.
Further, as shown in fig. 6, a sealing gasket 5 is arranged at the outer edge part of the through groove 4, and the sealing gasket 5 is attached to the outer surface of the sealing drum 9;
by adopting the technical scheme, the sealing and heat-insulating performance of the environment test box can be further improved, the gap between the outer surface of the sealing rotary drum 9 and the through groove 4 is ensured to be blocked, and the temperature change of temperature fluid caused by air entering the environment test box is reduced.
Further, as shown in fig. 6, the composite material temperature cycle fatigue testing device further comprises a box cover 20, the box cover 20 is hinged with a discharge groove 19 arranged on the environmental test box, and the composite material temperature cycle fatigue testing device further comprises a discharge valve 21 arranged at the lower end of the environmental test box;
By adopting the technical scheme, the temperature fluid can be conveniently added or discharged, when the temperature fluid is added, the temperature fluid can be poured into the corresponding environment test box through the discharge groove 19 by only opening the box cover 20, and when the temperature fluid is discharged, the discharge valve 21 is opened, so that the temperature fluid is very convenient.
Further, as shown in fig. 1, the composite material temperature cycle fatigue test device further includes: the fixed block 22 is arranged at the bottom end of the environment test box, and the fixed block 22 is provided with a bolt hole; a bolt 23 provided in the bolt hole;
By adopting the technical scheme, the environment test box can be conveniently installed at the upper end of the bottom plate 1, and when the environment test box is installed, the environment test box is horizontally placed at the upper end of the bottom plate 1, the bolts 23 are inserted into the bolt holes in the fixed blocks 22, and the bolts 23 are screwed into the thread grooves of the bottom plate 1 by using the spanner, so that the fixing can be completed.
Working principle: when in use, firstly, a sample 18 is placed between clamping plates 17, a first electric push rod 16 is started to drive the clamping plates 17 to fold so as to fix the sample 18, then a heater in a hot end environment test box 2 is started to heat heating liquid, a refrigerator is started to cool cooling liquid in a cold end environment test box 3, after the temperature of the sample 18 and the heating liquid reaches a preset value, a first motor 7 is started to drive a rotating shaft 8 to rotate, the rotating shaft 8 drives a sealing rotary drum 9 to rotate so as to drive a separation plate 10 to synchronously rotate, the separation plate 10 drives a second electric push rod 14 to rotate, the second electric push rod 14 drives a clamp body 15 to rotate so as to align the clamp body 15 with a through groove 4 of the hot end environment test box 2, the sample 18 in the clamp body 15 is started to extend and drive to enter the hot end environment test box 2 to be contacted with the heating liquid through the through groove 4, after a period of time, the sample 18 is heated to a required temperature, the second electric push rod 14 is reset, the first motor 7 drives the isolation plate 10 of the sealing rotary drum 9 to reversely rotate to the cold end environment test box 3, the second electric push rod 14 stretches, so that the sample 18 stretches into the cold end environment test box 3 to be contacted with cooling liquid, after a period of time, the sample 18 drops to a required temperature, and then the sample 18 is circularly reciprocated, so that the fatigue performance test under the temperature alternating load is completed, and due to the arrangement of the sealing rotary drum 9, when the sample 18 alternately enters the hot end environment test box 2 and the cold end environment test box 3 back and forth, the through grooves 4 of the hot end environment test box 2 and the cold end environment test box 3 can be intermittently blocked by the outer surface of the sealing rotary drum 9, the environment test box is ensured to be in a sealing state when the sample 18 is not heated or cooled, the temperature fluid in the environment test box is prevented from being contacted with air for a long time, resulting in too rapid a temperature change of the temperature fluid affecting the accuracy of the detection test.
To complete a series of work, and what is not described in detail in this specification is prior art that is well known to those skilled in the art.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323412604.0U CN221945785U (en) | 2023-12-14 | 2023-12-14 | Composite material temperature cycle fatigue testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323412604.0U CN221945785U (en) | 2023-12-14 | 2023-12-14 | Composite material temperature cycle fatigue testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221945785U true CN221945785U (en) | 2024-11-01 |
Family
ID=93244796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323412604.0U Active CN221945785U (en) | 2023-12-14 | 2023-12-14 | Composite material temperature cycle fatigue testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221945785U (en) |
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2023
- 2023-12-14 CN CN202323412604.0U patent/CN221945785U/en active Active
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