CN214097006U - Bellows high and low temperature fatigue test device - Google Patents
Bellows high and low temperature fatigue test device Download PDFInfo
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- CN214097006U CN214097006U CN202023174160.8U CN202023174160U CN214097006U CN 214097006 U CN214097006 U CN 214097006U CN 202023174160 U CN202023174160 U CN 202023174160U CN 214097006 U CN214097006 U CN 214097006U
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Abstract
The utility model discloses a bellows high and low temperature fatigue test device, which comprises a rack, an upper sliding table and a lower platform, wherein a stand column support is arranged on the lower platform, a bellows pressure test cavity is fixed on the stand column support, a bellows to be tested is arranged in the bellows pressure test cavity, the upper end of the bellows is fixed with the upper wall of the bellows pressure test cavity, and the lower end of the bellows is fixed with the lower end of a guide slide bar; insulation boxes are arranged on the outer sides of the upright post support and the corrugated pipe pressure test cavity; the guide sliding rod penetrates through the upper end of the heat insulation box and is connected with the upper sliding table; the device is characterized by further comprising a medium filling temperature control device and a medium pressure control device, wherein the medium filling temperature control device and the medium pressure control device are both communicated with the corrugated pipe pressure test cavity, and a medium temperature measuring device is further arranged in the corrugated pipe pressure test cavity. The utility model discloses an insulation can is adjusted bellows test chamber external temperature, has guaranteed the stability of whole test procedure temperature, and the accuracy of result provides the method for bellows high low temperature fatigue test.
Description
Technical Field
The utility model belongs to the technical field of the compensator detects, concretely relates to bellows high low temperature fatigue test device for the fatigue life of simulation and test bellows axial tension and compression in the real work, especially high temperature (or low temperature) fatigue life.
Background
The corrugated pipe can generate large displacement under the action of axial force, the metal hose, the corrugated expansion joint and the corrugated pipe heat exchanger are used in large quantities, the application range of the corrugated pipe heat exchanger is not limited to the conventional environmental conditions, the conventional corrugated pipe testing device can only perform axial fatigue testing on the corrugated pipe under the conventional conditions, the test pressure of the corrugated pipe is pressurized by a pressure pump operated by a person, the high-low temperature environment and the test pressure of the corrugated pipe cannot be accurately simulated, the fatigue testing of the actual high-low temperature environmental conditions of the corrugated pipe cannot be effectively simulated, and the test result has deviation.
Therefore, an effective bellows high-low temperature fatigue testing device is urgently needed, the bellows fatigue testing can be carried out under the high-temperature or low-temperature condition, the testing temperature and the testing pressure can be accurately and dynamically adjusted in the whole testing process, the fatigue condition in practical application is effectively simulated, and the testing result is more accurate.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a bellows high low temperature fatigue test device to solve the problem among the prior art.
The utility model discloses a realize through following technical scheme: the utility model provides a bellows high low temperature fatigue test device which characterized in that: the device comprises a rack, an upper sliding table and a lower platform which are connected in the rack in a sliding manner, wherein an upright post support is arranged on the lower platform, a corrugated pipe pressure test cavity is fixed on the upright post support, a corrugated pipe to be tested is arranged in the corrugated pipe pressure test cavity, the upper end of the corrugated pipe is fixed with the upper wall of the corrugated pipe pressure test cavity, and the lower end of the corrugated pipe is fixed with the lower end of a guide slide rod; insulation boxes are arranged on the outer sides of the upright post support and the corrugated pipe pressure test cavity; the guide sliding rod penetrates through the upper end of the heat insulation box and is connected with the upper sliding table;
the device is characterized by further comprising a medium filling temperature control device and a medium pressure control device, wherein the medium filling temperature control device and the medium pressure control device are both communicated with the corrugated pipe pressure test cavity, and a medium temperature measuring device is further arranged in the corrugated pipe pressure test cavity.
Further: the guide slide bar is a double-thread screw, and two ends of the guide slide bar are respectively in threaded fit with the lower end of the upper sliding table and the lower end of the corrugated pipe.
Further: the heat insulation box is a temperature control box with a temperature adjusting device.
The utility model has the advantages that: the upper sliding table of the rack is hydraulically driven, the switching of the running direction is realized through a high-efficiency reversing valve, the speed required by an experiment is met, the temperature measuring device and the medium filling temperature control device can be used for accurately and dynamically adjusting the temperature in the corrugated pipe test cavity in real time, the medium pressure control device can be used for accurately and dynamically adjusting the pressure in the pressure cavity, the heat insulation box can be used for adjusting the temperature outside the corrugated pipe test cavity, the devices are effectively matched through the arranged upright post support, the corrugated pipe pressure test cavity and the guide slide rod, the accuracy of the whole test result is ensured, and a method is provided for the high-low temperature fatigue test of the corrugated pipe.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
the sequence numbers in the figures illustrate: the device comprises a rack 1, an upper sliding table 2, an insulation box 3, a stand column support 4, a lower platform 5, a guide slide bar 6, a corrugated pipe pressure test chamber 7, a medium temperature measuring device 8, a medium charging temperature control device 9, a medium pressure control device 10, a corrugated pipe 11 and a hydraulic cylinder 12.
Detailed Description
Fig. 1 shows a bellows high and low temperature fatigue testing device, which comprises a rack 1, an upper sliding table 2 and a lower platform 5 which are slidably connected in the rack, wherein an upright support 4 is arranged on the lower platform, a bellows pressure test chamber 7 is fixed on the upright support, a bellows 11 to be tested is arranged in the bellows pressure test chamber, the upper end of the bellows is fixed with the upper wall of the bellows pressure test chamber, and the lower end of the bellows is fixed with the lower end of a guide slide bar 6; an insulation can 3 is arranged at the outer sides of the upright post support and the corrugated pipe pressure test cavity; the guide sliding rod penetrates through the upper end of the heat insulation box and is connected with the upper sliding table; the device is characterized by further comprising a medium filling temperature control device 9 and a medium pressure control device 10, wherein the medium filling temperature control device and the medium pressure control device are both communicated with the corrugated pipe pressure test cavity, and a medium temperature measuring device 8 is further arranged in the corrugated pipe pressure test cavity.
Preferably: the direction slide bar is double-thread screw, and both ends screw thread is reverse and respectively with last sliding stand lower extreme and bellows lower extreme screw-thread fit, still is provided with lock nut near last sliding stand one side.
Preferably: the heat insulation box is a temperature control box with a temperature adjusting device, can set temperature and automatically perform heating and refrigeration.
Preferably: the upper sliding table is connected with the hydraulic cylinder 12 and is lifted under the action of the hydraulic cylinder 12, and is used for generating pulling pressure to pull or compress the corrugated pipe; the lower platform is connected with the driving screw rod and is lifted under the action of the driving screw rod, and the height of the lower platform is adjusted according to the length of the sample so as to adapt to samples with different lengths.
Preferably: the medium temperature measuring device 8 is a thermocouple and is used for monitoring the temperature of the corrugated pipe.
Preferably: the medium pressure control device is a conventional pneumatic pump and the like and is used for filling high-pressure gas into the pressure test cavity of the corrugated pipe to form a pressure environment; the medium filling temperature control device is used for heating or cooling the filled gas so as to keep the temperature of the corrugated pipe relatively constant, the temperature of the sucked air can be controlled at the front end of the air pump, and the temperature of the pressure pipeline can also be controlled at the rear end of the air pump so as to control the temperature of the gas.
The utility model discloses a test process, including following step:
s1; fixing the lower end of a stand column support on a lower platform of a rack, placing an insulation can on the lower platform, penetrating a stand column into a through hole of the insulation can, then fastening the stand column by a bolt, after fastening the stand column and an upper end plate by the bolt, placing a corrugated pipe pressure test cavity on the stand column support and fastening the stand column support and the corrugated pipe pressure test cavity;
s2; the guide sliding rod penetrates through a through hole in the upper part of the heat preservation box to reach a bolt hole in the end part of the corrugated pipe, then the guide sliding rod is screwed by hand, the upper sliding table is started, and after the upper sliding table is adjusted to the initial position of the corrugated pipe, the upper sliding table and the guide sliding rod are fastened by bolts;
s3; connecting the medium temperature measuring device, the medium filling temperature control device and the medium pressure control device;
s4; starting the insulation box and the medium filling temperature control device, and starting and pressurizing the medium pressure control device to test pressure after the medium temperature in the insulation box and the corrugated pipe pressure test cavity is balanced and reaches the test temperature;
s5; starting the upper sliding table to perform a fatigue test;
s6; in the test, the temperature and the pressure of the bellows test cavity are dynamically controlled in real time by the medium filling temperature control device and the medium pressure control device;
s7; recording abnormal condition parameters of pressure, displacement, temperature and test times;
s8; and (5) finishing the test.
In the scheme, the platform adopts hydraulic drive on the rack, and realize the required speed of traffic direction switching and satisfy the experiment through high-efficient switching-over valve, temperature measuring device and medium fill dress temperature control device to the accurate real-time dynamic adjustment of bellows test intracavity temperature, medium pressure controlling means is to the accurate dynamic adjustment of pressure chamber internal pressure, the insulation can is to the outer temperature regulation of bellows test chamber, through the stand support that is equipped with, bellows pressure test chamber and direction slide bar put together the effectual cooperation of above-mentioned device, whole test result's accuracy has been guaranteed, accuracy for the high low temperature fatigue test of bellows provides the powerful assurance.
Claims (3)
1. The utility model provides a bellows high low temperature fatigue test device which characterized in that: the device comprises a rack, an upper sliding table and a lower platform which are connected in the rack in a sliding manner, wherein an upright post support is arranged on the lower platform, a corrugated pipe pressure test cavity is fixed on the upright post support, a corrugated pipe to be tested is arranged in the corrugated pipe pressure test cavity, the upper end of the corrugated pipe is fixed with the upper wall of the corrugated pipe pressure test cavity, and the lower end of the corrugated pipe is fixed with the lower end of a guide slide rod; insulation boxes are arranged on the outer sides of the upright post support and the corrugated pipe pressure test cavity; the guide sliding rod penetrates through the upper end of the heat insulation box and is connected with the upper sliding table;
the device is characterized by further comprising a medium filling temperature control device and a medium pressure control device, wherein the medium filling temperature control device and the medium pressure control device are both communicated with the corrugated pipe pressure test cavity, and a medium temperature measuring device is further arranged in the corrugated pipe pressure test cavity.
2. The bellows high and low temperature fatigue test device of claim 1, wherein: the guide slide bar is a double-thread screw, and two ends of the guide slide bar are respectively in threaded fit with the lower end of the upper sliding table and the lower end of the corrugated pipe.
3. The bellows high and low temperature fatigue test device of claim 1, wherein: the heat insulation box is a temperature control box with a temperature adjusting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023174160.8U CN214097006U (en) | 2020-12-25 | 2020-12-25 | Bellows high and low temperature fatigue test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023174160.8U CN214097006U (en) | 2020-12-25 | 2020-12-25 | Bellows high and low temperature fatigue test device |
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| Publication Number | Publication Date |
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| CN214097006U true CN214097006U (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023174160.8U Active CN214097006U (en) | 2020-12-25 | 2020-12-25 | Bellows high and low temperature fatigue test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323615A (en) * | 2021-12-24 | 2022-04-12 | 上海阀门厂股份有限公司 | Spring stabiliser relief valve bellows life-span appraisal test frock |
| CN116625620A (en) * | 2023-07-19 | 2023-08-22 | 沈阳仪表科学研究院有限公司 | Refractory metal elastic element fatigue life measuring device |
-
2020
- 2020-12-25 CN CN202023174160.8U patent/CN214097006U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323615A (en) * | 2021-12-24 | 2022-04-12 | 上海阀门厂股份有限公司 | Spring stabiliser relief valve bellows life-span appraisal test frock |
| CN114323615B (en) * | 2021-12-24 | 2024-04-23 | 上海阀门厂股份有限公司 | Test fixture for service life identification of bellows of safety valve of spring type voltage stabilizer |
| CN116625620A (en) * | 2023-07-19 | 2023-08-22 | 沈阳仪表科学研究院有限公司 | Refractory metal elastic element fatigue life measuring device |
| CN116625620B (en) * | 2023-07-19 | 2023-09-29 | 沈阳仪表科学研究院有限公司 | Refractory metal elastic element fatigue life measuring device |
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