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CN-224231424-U - Quick sample changing device for mechanical test in high-pressure low-temperature environment

CN224231424UCN 224231424 UCN224231424 UCN 224231424UCN-224231424-U

Abstract

The utility model relates to the technical field of low-temperature equipment and measurement, and provides a quick sample changing device for mechanical testing in a high-pressure low-temperature environment, which comprises a loading rod, wherein a first end of the loading rod is used for applying loading force, and a second end of the loading rod is detachably connected with a sample; the device comprises a loading rod, a reverser, an air cavity, a test cavity and a test cavity, wherein the loading rod is arranged in the test cavity, the loading rod is arranged in the air cavity, the reverser is connected with the first end of the reverser, the second end of the reverser is connected with the other end of the sample, the air cavity is used for the loading rod to penetrate through, the top of the air cavity is connected with the loading rod in a dynamic sealing mode, the test cavity is communicated with the air cavity, and the second end of the loading rod stretches into the test cavity. According to the rapid sample changing device for the high-pressure low-temperature environmental mechanical test, when a sample needs to be changed, the loading rod is lifted upwards to be higher than the air cavity by the aid of the reverser, the sample is detached and replaced, and then the loading rod is lowered to be connected with the top of the air cavity in a sealing mode, so that the sample changing is completed, the sample changing efficiency is improved, and the operation is simple.

Inventors

  • LI YINFEI
  • LI HAO
  • JIA PENG
  • HUANG CHUANJUN
  • SHI LI
  • LI LAIFENG

Assignees

  • 中国科学院理化技术研究所

Dates

Publication Date
20260512
Application Date
20250416

Claims (10)

  1. 1. The utility model provides a quick sample device of high pressure low temperature environment mechanics test which characterized in that includes: a loading rod (1), wherein the first end is used for applying loading force, and the second end of the loading rod (1) is detachably connected with a sample (2); a reverser (3) with a first end connected to the loading rod (1), and a second end of the reverser (3) connected to the other end of the sample (2); The air cavity (4) is used for the penetration of the loading rod (1), and the top of the air cavity (4) is in dynamic sealing connection with the loading rod (1); and the test cavity (5) is communicated with the air cavity (4), and the second end of the loading rod (1) stretches into the test cavity (5).
  2. 2. The rapid sample exchange device for mechanical testing in a high-pressure low-temperature environment according to claim 1, wherein the test chamber (5) comprises: The vacuum cover (51) is sleeved on the outer peripheral side of the air cavity (4), the vacuum cover (51) is used for being connected with the vacuum cover, and a vacuum suction port (511) is formed in the vacuum cover (51); And an autoclave cover (52) which is arranged on the periphery of the bottom of the air cavity (4), wherein the autoclave cover (52) is used for connecting an autoclave, the air cavity (4) is communicated with the autoclave, and the autoclave is positioned in the vacuum cover.
  3. 3. The rapid sample exchange device for mechanical testing in a high pressure low temperature environment of claim 2, further comprising: And the sealing flange (6) is arranged at the top of the air cavity (4), and the sealing flange (6) realizes sealing through a dynamic sealing assembly.
  4. 4. A rapid sample exchange device for mechanical testing in a high-pressure low-temperature environment according to claim 3, wherein the sealing flange (6) is provided with an aviation plug base (7), and the aviation plug base (7) is used for connecting a heating resistor and a thermometer for temperature control.
  5. 5. The rapid sample exchange device for mechanical testing in a high pressure low temperature environment of claim 3, further comprising: A first clamp (8), a first end of the first clamp (8) being connected to a second end of the loading rod (1); A second clamp (9), a first end of the second clamp (9) being connected to a second end of the reverser (3); And the second end of the first clamp (8) and the second end of the second clamp (9) clamp the sample (2) together.
  6. 6. The rapid sample exchange device for mechanical testing in a high-pressure low-temperature environment according to claim 5, wherein the reverser (3) comprises: An upper reverser seat (31) connected with the loading rod (1); a plurality of reverser connecting rods (32), wherein one end of each reverser connecting rod (32) is connected with the reverser upper seat (31); The reverser base (33) is connected with the other end of the reverser connecting rod (32), the reverser base (33) is connected with the first end of the second clamp (9), and the first clamp (8) and the second clamp (9) are located in a space surrounded by the reverser connecting rods (32).
  7. 7. The rapid sample exchange device for mechanical testing in a high pressure low temperature environment of claim 6, further comprising: An upper flange (10) of the air cavity is in sealing connection with the sealing flange (6); and the lower flange (11) of the air cavity is in sealing connection with the vacuum cover (51).
  8. 8. The rapid sample exchange device for mechanical testing in a high pressure low temperature environment of claim 1, further comprising: A stretching rod flange (12) for the loading rod (1) to pass through, wherein the stretching rod flange (12) is used for connecting a mechanical testing machine; And the connecting rod (13) is arranged at one side of the stretching rod flange (12) which is away from the mechanical testing machine.
  9. 9. The rapid sample exchange device for mechanical testing in a high-pressure low-temperature environment according to claim 7, wherein the loading rod (1), the sealing flange (6), the reverser upper seat (31), the reverser base (33), the first clamp (8), the second clamp (9), the sample (2), the vacuum cover (51), the air cavity (4), the air cavity upper flange (10) and the air cavity lower flange (11) are all coaxially arranged.
  10. 10. The rapid sample exchange device for mechanical testing in a high-pressure low-temperature environment according to claim 6, further comprising a sleeve (14) positioned at the bottom of the sealing flange (6), wherein the sleeve (14) is sleeved on the periphery of the loading rod (1), and the bottom end of the sleeve (14) extends to the upper base (31) of the reverser.

Description

Quick sample changing device for mechanical test in high-pressure low-temperature environment Technical Field The utility model relates to the technical field of low-temperature equipment and measurement, in particular to a rapid sample changing device for mechanical testing in a high-pressure low-temperature environment. Background In industry, it is often necessary to pressurize a gas for storage and transportation. Taking hydrogen as an example, along with the continuous development of hydrogen energy technology, hydrogen is widely used as a clean energy source in the fields of energy, transportation, aerospace and the like. The influence of hydrogen on the mechanical properties of materials in a high-pressure low-temperature environment is one of key factors restricting the design and application of related equipment. For example, in the development of large-scale underground hydrogen storage and hydrogenation station related equipment, the mechanical properties of materials under high-pressure low-temperature hydrogen environment need to be studied to ensure the safety and reliability of the materials. In the prior art, when a mechanical testing device is used for replacing a sample in a high-pressure low-temperature hydrogen environment, the problems of low sample replacement efficiency, complex operation and the like exist. Disclosure of utility model The utility model provides a rapid sample changing device for a high-pressure low-temperature environment mechanical test, which is used for solving the defects of low sample changing efficiency and complex operation in the prior art and realizing the improvement of the sample changing efficiency. The utility model provides a rapid sample changing device for a high-pressure low-temperature environment mechanical test, which comprises: the first end of the loading rod is used for applying loading force, and the second end of the loading rod is detachably connected with a sample; A reverser, a first end of which is connected with the loading rod, and a second end of which is connected with the other end of the sample; the air cavity is used for the loading rod to penetrate, and the top of the air cavity is in dynamic sealing connection with the loading rod; And the test cavity is communicated with the air cavity, and the second end of the loading rod stretches into the test cavity. According to the rapid sample changing device for the mechanical test of the high-pressure low-temperature environment, which is provided by the utility model, the test cavity comprises: The vacuum cover is sleeved on the outer peripheral side of the air cavity and is used for being connected with the vacuum cover, and a vacuum suction port is formed in the vacuum cover; And the high-pressure kettle cover is arranged on the periphery of the bottom of the air cavity and is used for being connected with the high-pressure kettle, the air cavity is communicated with the high-pressure kettle, and the high-pressure kettle is positioned in the vacuum cover. The utility model provides a rapid sample changing device for mechanical testing in a high-pressure low-temperature environment, which further comprises: And the sealing flange is arranged at the top of the air cavity and is sealed by a dynamic sealing assembly. According to the rapid sample changing device for the high-pressure low-temperature environmental mechanics test, provided by the utility model, the sealing flange is provided with the aviation plug base, and the aviation plug base is used for connecting the heating resistor and the thermometer to control the temperature. The utility model provides a rapid sample changing device for mechanical testing in a high-pressure low-temperature environment, which further comprises: a first clamp, a first end of which is connected with a second end of the loading rod; a second clamp, the first end of the second clamp being connected to the second end of the inverter; and the second end of the first clamp and the second end of the second clamp together clamp the specimen. According to the rapid sample changing device for the mechanical test of the high-pressure low-temperature environment, which is provided by the utility model, the reverser comprises: The reverser upper seat is connected with the loading rod; One end of each reverser connecting rod is connected with the reverser upper seat; The reverser base is connected with the other end of the reverser connecting rod and connected with the first end of the second clamp, and the first clamp and the second clamp are positioned in a space surrounded by a plurality of reverser connecting rods. The utility model provides a rapid sample changing device for mechanical testing in a high-pressure low-temperature environment, which further comprises: The upper flange of the air cavity is in sealing connection with the sealing flange; and the lower flange of the air cavity is in sealing connection with the vacuum cover. The utility model pro