CN211121861U

CN211121861U - High temperature cavity cooling vibration combined test device

Info

Publication number: CN211121861U
Application number: CN201922365470.9U
Authority: CN
Inventors: 浦明龙; 吴彬彬; 姚志红; 陈晓鑫
Original assignee: SUZHOU CHANGLING MEASUREMENT TECHNOLOGY CO LTD
Current assignee: SUZHOU CHANGLING MEASUREMENT TECHNOLOGY CO LTD
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-07-28
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a high temperature cavity cooling vibration combined test device, including shaking table, high temperature cabinet, thermal-insulated pillar, the pump body, first pipeline, second pipeline, third pipeline and fourth pipeline, thermal-insulated pillar is located the shaking table upside, fixed test piece on the thermal-insulated pillar, third pipeline, fourth pipeline and test piece are located the high temperature cabinet, be provided with first passageway and second passageway in the thermal-insulated pillar, the through-hole of first pipeline, first passageway, third pipeline, test piece, fourth pipeline, second passageway and second pipeline end to end connect gradually, the pump body is with cooling medium pump to first pipeline in. The test device can realize the test of the reliability of the vibration of the comprehensive environment at different temperatures inside and outside the test piece, and has high precision and good reliability.

Description

High temperature cavity cooling vibration combined test device

Technical Field

The utility model relates to a vibration test technical field, concretely relates to high temperature cavity cooling vibration combined test device.

Background

In the field of aerospace, particularly in the engine development link, environmental reliability tests with extreme conditions are often involved. For example, some parts need to be subjected to vibration testing in a high temperature (800-900 ℃) environment, but for some parts with cooling medium inside for heat dissipation (relatively low temperature, such as 200-500 ℃), the environment is too harsh, so that the testing result is not ideal or deviates from the actual situation, and therefore, it is desirable to simulate the actual situation as much as possible in the testing process so as to accurately reflect the actual quality of the sample.

At present, the vibration reliability test of the comprehensive environment with different temperatures inside and outside the sample piece is difficult to implement, and the problem of solving the vibration reliability test can be laid for the development of related tests.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a high temperature cavity cooling vibration combined test device, its comprehensive environment vibration reliability test that can realize the inside and outside different temperatures of test piece, the precision is high, the good reliability.

In order to solve the technical problem, the utility model provides a high temperature cavity cooling vibration combined test device, including shaking table, high-temperature cabinet, thermal-insulated pillar, the pump body, first pipeline, second pipeline, third pipeline and fourth pipeline, thermal-insulated pillar is located the shaking table upside, fixed test piece on the thermal-insulated pillar, third pipeline, fourth pipeline and test piece are located the high-temperature cabinet, be provided with first passageway and second passageway in the thermal-insulated pillar, the through-hole of first pipeline, first passageway, third pipeline, test piece, fourth pipeline, second passageway and second pipeline end to end connect gradually, the pump body is with cooling medium pump to first pipeline in.

Preferably, the heat insulation table column further comprises a water cooler, a heat insulation channel is further arranged in the heat insulation table column, and the water cooler is connected with the heat insulation channel.

As preferred, thermal-insulated passageway includes inlet, liquid outlet, goes up the cavity, first thermal-insulated passageway and a plurality of second thermal-insulated passageway, the vertical setting of first thermal-insulated passageway and second thermal-insulated passageway, inlet and lower cavity intercommunication, the upper end and the last cavity intercommunication of second thermal-insulated passageway, the lower extreme and the lower cavity intercommunication of second thermal-insulated passageway, the upper end and the last cavity intercommunication of first thermal-insulated passageway, the lower extreme and the liquid outlet intercommunication of first thermal-insulated passageway, inlet and liquid outlet are connected with the cold water machine respectively.

Preferably, the first heat insulation channel is located at the center of the heat insulation table column, and the second heat insulation channels are uniformly arranged around the first heat insulation channel.

Preferably, the first channel and the second channel are vertically arranged, and the first channel and the second channel are located on two sides of the first heat insulation channel.

Preferably, a valve body is arranged on the first pipeline.

Preferably, the cooling medium is a gas or a cooling liquid.

Preferably, the cooling device further comprises a cooling tank, and the second pipeline is connected with the cooling tank.

Preferably, the test piece fixing device further comprises a mounting table for mounting the test piece, and the mounting table is fixedly arranged on the upper side of the heat insulation table column.

Preferably, the device further comprises a thermocouple temperature probe for acquiring the temperature of the test piece.

The utility model has the advantages that:

1. the utility model discloses be provided with shaking table, high temperature box, thermal-insulated stand and the pump body, thermal-insulated stand is located the shaking table upside, through the pump body with coolant via thermal-insulated stand pump to the through-hole of test piece in, and because the test piece is located the high temperature box, so, can realize the comprehensive environment vibration reliability test of the inside and outside different temperatures of test piece, the actual quality of the accurate detection test piece of being convenient for, the precision is high, good reliability, its mechanism is compact, stability is good.

2. The utility model discloses well pump body accessible is to the coolant medium of the pump income different grade type of test piece and different flow, and the different operating modes of convenient simulation are conveniently adjusted and are experimental, and application scope is wide.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the vibration table and the heat insulation table post of the present invention;

FIG. 3 is a schematic view showing the flow of the cooling medium in the insulating column;

FIG. 4 is a schematic view of the flow of cold water within the insulating column;

FIG. 5 is a schematic view of the cold water and cooling medium in the insulated column.

The reference numbers in the figures illustrate: 10. a vibration table; 11. an installation table; 20. a heat insulation pillar; 21. a first channel; 22. a second channel; 23. a liquid inlet; 24. a lower cavity; 25. a second insulating passageway; 26. an upper cavity; 27. a first insulating passageway; 28. a liquid outlet; 30. a high temperature chamber; 40. a pump body; 41. a valve body; 42. a first conduit; 43. a second conduit; 44. a third pipeline; 45. a fourth conduit; 50. a water chiller; 60. a test piece; 70. a thermocouple temperature probe; 81. a cooling medium.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Referring to fig. 1-5, the utility model discloses a high temperature cavity cooling vibration combined test device, it is used for testing the test piece 60 that has coolant 81, runs through in the test piece 60 and has seted up the through-hole, including shaking table 10, high temperature case 30, thermal-insulated stand 20, the pump body 40, first pipeline 42, second pipeline 43, third pipeline 44 and fourth pipeline 45. The heat insulation column 20 is positioned on the upper side of the vibration table 10, and the test piece 60 is fixed on the heat insulation column 20. The third conduit 44, the fourth conduit 45, and the test piece 60 are located within the hot box 30. The high temperature box 30 simulates a high temperature environment, which is convenient for the high temperature vibration test of the test piece 60.

A first channel 21 and a second channel 22 are arranged in the heat insulation table column 20, a first pipeline 42, the first channel 21, a third pipeline 44, a through hole of the test piece 60, a fourth pipeline 45, the second channel 22 and a second pipeline 43 are sequentially connected end to end, and a pump body 40 pumps a cooling medium 81 into the first pipeline 42. Since the pump body 40 pumps the cooling medium 81 to the first pipe 42, the cooling medium 81 flows through the first pipe 42, the first passage 21, the third pipe 44, the through-hole of the test piece 60, the fourth pipe 45, the second passage 22, and the second pipe 43 in this order. Therefore, the test of the cooling liquid introduced into the test piece 60 and the vibration in the high-temperature environment can be simulated, the precision of the test result is higher, and the test of the vibration reliability of the comprehensive environment at different temperatures inside and outside the sample piece can be realized.

The utility model discloses still include cold water machine 50, still be provided with thermal-insulated passageway in the thermal-insulated column 20, cold water machine 50 is connected with thermal-insulated passageway. The low temperature water (about 18-20 c) produced by the chiller 50 is passed through the insulated column 20 and the heat conducted to the column at the high temperature chamber end is removed by the low temperature water flow. By using the method, the vibration table 10 is isolated from high temperature, the use environment of the equipment is improved, and the condition that the equipment is damaged due to the high-temperature environment is avoided. And because the first channel 21 and the second channel 22 are also arranged in the heat insulation column 20, the first channel 21 and the second channel 22 of the heat insulation column 20 are utilized to introduce the cooling medium 81 into the test piece 60, the difficulty and trouble of equipment transformation or re-customization are eliminated, and the time and money cost is effectively saved.

The heat insulation channel comprises a liquid inlet 23, a liquid outlet 28, an upper cavity 26, a lower cavity 24, a first heat insulation channel 27 and a plurality of second heat insulation channels 25, the first heat insulation channel 27 and the second heat insulation channels 25 are vertically arranged, the liquid inlet 23 is communicated with the lower cavity 24, the upper end of the second heat insulation channel 25 is communicated with the upper cavity 26, the lower end of the second heat insulation channel 25 is communicated with the lower cavity 24, the upper end of the first heat insulation channel 27 is communicated with the upper cavity 26, the lower end of the first heat insulation channel 27 is communicated with the liquid outlet 28, and the liquid inlet 23 and the liquid outlet 28 are respectively connected with the water cooler 50. The liquid inlet 23 is in communication with the lower cavity 24 such that the cold water 80 can enter the lower cavity 24 through the liquid inlet 23 and then enter the upper cavity 26 from the lower cavity 24 through the plurality of second insulating channels 25. Since the second heat insulation passage 25 has a plurality of second heat insulation passages 25, the plurality of second heat insulation passages 25 can realize uniform distribution of the cold water 80, thereby realizing uniform heat insulation. The cold water in the upper cavity 26 merges into the first insulated passageway 27 and then flows out of the outlet port 28.

The first insulating passageway 27 is located at the center of the insulating column 20, and the second insulating passageway 25 is uniformly arranged around the first insulating passageway 27. Thus, uniform heat insulation can be realized, and the high-temperature box 30 is prevented from transferring heat to the vibration table 10 to damage equipment.

The first channel 21 and the second channel 22 are vertically arranged, and the first channel 21 and the second channel 22 are positioned at two sides of the first heat insulation channel 27.

A valve body 41 is provided in the first pipe 42. The flow rate of the cooling medium 81 is controlled by the valve body 41. The valve body 41 may be a throttle valve.

The cooling medium 81 is a gas or a coolant. The gas may be cold air.

The utility model discloses still include the cooling bath, second pipeline 43 is connected with the cooling bath. The cooling medium 81 flows into the cooling tank through the second pipe 43, and if the cooling medium 81 is a gas, the gas flowing out of the second pipe 43 can enter the cooling tank to be cooled.

The utility model discloses still including the mount table 11 that is used for installing test piece 60, mount table 11 is fixed to be set up at thermal-insulated stand 20 upside. The mounting table 11 facilitates fixing the test piece 60.

The utility model discloses still including the thermocouple temperature probe 70 of gathering test piece 60 temperature, its temperature that is convenient for gather test piece 60 temperature.

Specifically, in a test environment, a high-temperature environment of 870 ℃ is loaded outside the test piece 60, air of 400 ℃ is passed through the sample piece, and a cyclic sweep frequency vibration test of a specified magnitude is applied to verify the vibration resistance of the welding spot of the sample piece in the environment. The test system takes an ES-10 type electric vibration table 10 as a base, a heat insulation table column 20 is installed on a moving coil, and one end of the heat insulation table column extends into a high-temperature box 30 to be connected with an installation tool and a test piece 60. The stainless steel corrugated pipe is used for cooling connection of the sample piece, and because air is used as the cooling medium 81, the air source only needs to use one large-capacity air compressor, namely the pump body 40 is the air compressor. And a pressure reducing valve is added at the rear end of the output port of the air compressor and then connected to the heat insulation pillar 20, and the outlet at the lower end of the pillar is led into the cooling water tank through a stainless steel corrugated pipe and used for cooling the high-temperature waste gas for the test. And a thermocouple temperature probe 70 is connected to the outlet of the test piece 60, and a temperature measuring wire is led out from a wire outlet window at the upper end of the high-temperature box 30 to be connected. Finally, the heat insulation table post 20 and the water cooler 50 are connected through rubber pipes, a system is debugged to ensure that each passage has no leakage, and protective measures around the test equipment are taken to prevent high temperature from scalding personnel.

Practical tests prove that the temperature of the cooling air flowing through the sample piece can be well controlled by controlling the output pressure of the pressure reducing valve, and meanwhile, the temperature and vibration tests in the high-temperature box 30 are not influenced. The function of controlling the temperature and cooling the inside of the sample piece is achieved during the high-temperature vibration test, and gas or liquid cooling medium 81 can be introduced into the sample piece according to the actual test requirements.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims

1. The utility model provides a high temperature cavity cooling vibration combined test device, its test piece that is used for testing to lead to there is coolant, the through-hole has been seted up in the test piece, a serial communication port, including shaking table, high-temperature cabinet, thermal-insulated pillar, the pump body, first pipeline, second pipeline, third pipeline and fourth pipeline, thermal-insulated pillar is located the shaking table upside, fixed test piece on the thermal-insulated pillar, third pipeline, fourth pipeline and test piece are located the high-temperature cabinet, be provided with first passageway and second passageway in the thermal-insulated pillar, the through-hole of first pipeline, first passageway, third pipeline, test piece, fourth pipeline, second passageway and second pipeline end to end connect gradually, the pump body is with coolant pump to first pipeline in.

2. The high-temperature cavity cooling vibration comprehensive test device according to claim 1, further comprising a water chiller, wherein a heat insulation channel is further arranged in the heat insulation table column, and the water chiller is connected with the heat insulation channel.

3. The high-temperature cavity cooling vibration comprehensive test device according to claim 2, wherein the heat insulation channel comprises a liquid inlet, a liquid outlet, an upper cavity, a lower cavity, a first heat insulation channel and a plurality of second heat insulation channels, the first heat insulation channel and the second heat insulation channels are vertically arranged, the liquid inlet is communicated with the lower cavity, the upper end of the second heat insulation channel is communicated with the upper cavity, the lower end of the second heat insulation channel is communicated with the lower cavity, the upper end of the first heat insulation channel is communicated with the upper cavity, the lower end of the first heat insulation channel is communicated with the liquid outlet, and the liquid inlet and the liquid outlet are respectively connected with a water chiller.

4. The high-temperature cavity cooling vibration comprehensive test device according to claim 3, wherein the first heat insulation channel is located at the center of the heat insulation table column, and the second heat insulation channels are uniformly arranged around the first heat insulation channel.

5. The high-temperature cavity cooling vibration comprehensive test device according to claim 4, wherein the first channel and the second channel are vertically arranged, and the first channel and the second channel are located on two sides of the first heat insulation channel.

6. The high-temperature cavity cooling vibration comprehensive test device according to claim 1, wherein a valve body is arranged on the first pipeline.

7. The high-temperature cavity cooling vibration comprehensive test device according to claim 1, wherein the cooling medium is gas or cooling liquid.

8. The high-temperature cavity cooling vibration comprehensive test device according to claim 1, further comprising a cooling tank, wherein the second pipeline is connected with the cooling tank.

9. The high-temperature cavity cooling vibration comprehensive test device according to claim 1, further comprising a mounting table for mounting a test piece, wherein the mounting table is fixedly arranged on the upper side of the heat insulation table column.

10. The high-temperature cavity cooling vibration comprehensive test device according to claim 1, further comprising a thermocouple temperature probe for acquiring the temperature of the test piece.