A method for clamping a volatile matter collection plate in a space irradiation environment

Abstract

The present invention discloses a volatile collection plate for use in a space irradiation environment, comprising a collection plate body, a water-cooled base, and a fixing fixture. A locking column is provided at the center of the upper surface of the collection plate body, and an integrally formed circular locking ball is provided at the top of the locking column. A U-shaped groove is provided on the water-cooled base, and the collection plate body is mounted on the lower surface of the water-cooled base via a fixing fixture. In the present invention, by providing the fixing fixture, when installing the collection plate body and the water-cooled base, contactless installation is achieved through the pop-up locking of the fixing fixture. Compared with the traditional bolt fixing method, the operation is more convenient and quick, and high-quality and efficient rapid installation can be performed in a limited space. By screwing the compression sleeve and the outer tube together, the fixed end can achieve torque adjustment when fixing the collection plate body, ensuring that the fixing force of the collection plate and the cold plate is consistent each time, thereby ensuring the stability of the test.

Description

Technical Field

[0001] The present invention relates to the technical field of spacecraft space environment testing, and in particular to a method for clamping a volatile matter collecting plate in a space radiation environment. Background Art

[0002] Before launch, spacecraft undergo a series of simulation tests on the ground. Non-metallic materials release gases in the space environment. These gases condense on the spacecraft's surfaces, causing contamination and degrading its performance, ultimately impacting its lifespan. To assess material performance, testing for condensable contaminants is essential during these tests, providing a basis for selecting materials for space applications.

[0003] The QJ1558B-2016 material volatility performance test method under vacuum conditions is currently widely used. The test unit includes a gas outlet unit and a collection unit. The test unit structure is shown in the figure. Figure 1 The acquisition board is fixed to the water-cooled base via threaded nuts. During the clamping process, operator contact contamination of the acquisition board and friction contamination from the acquisition board nuts will inevitably affect the weighing accuracy of the 1μg sensitivity, ultimately affecting the material testing results. Furthermore, the space within the vacuum container is limited, and the testing and moving mechanisms already occupy a certain amount of space. Therefore, the acquisition board installation process is relatively complex, time-consuming, and labor-intensive. Summary of the Invention

[0004] The purpose of the present invention is to solve the above problems and to propose a method for clamping a volatile matter collection plate in a space irradiation environment.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A volatile matter collection plate for use in a space irradiation environment comprises a collection plate body, a water-cooled base, and a fixing fixture. A locking post is provided at the center of the upper surface of the collection plate body, and an integrally formed circular locking ball is provided at the top of the locking post. A U-shaped groove is provided on the water-cooled base, and the collection plate body is mounted on the lower surface of the water-cooled base via a fixing fixture.

[0007] Preferably, the fixing fixture includes an outer tube, a locking rod, a pressing sleeve, and a spring. The locking rod passes through the interior of the outer tube and slides with it. An external threaded section is provided at the middle and lower part of the outer tube. The pressing sleeve is sleeved on the outside of the outer tube and screwed together with the external threaded section. A retaining ring is provided on the outside of the locking rod. The spring is sleeved on the outside of the locking rod and is located below the retaining ring.

[0008] Preferably, a locking groove is provided at the end of the locking rod, and the locking groove consists of an arc-shaped notch and a straight-line notch. A pressing block is provided at the top end of the locking rod.

[0009] A method for clamping a volatile matter collection plate in a space radiation environment comprises the following steps:

[0010] S1. Press the block at the top of the lock rod to compress the spring, causing the lock slot at the bottom of the lock rod to pop out of the press sleeve;

[0011] S2. The lock groove at the bottom of the lock rod engages the circular lock ball on the lock column, so that the acquisition plate is connected to the fixing fixture;

[0012] S3. The entire acquisition plate is then moved to the water-cooled base by a fixing fixture so that the acquisition plate is located below the water-cooled base and the lock column enters the U-shaped groove;

[0013] S4. Release the pressure block, and the locking rod retracts under the elastic force of the spring, driving the acquisition plate to be tightly attached to the bottom of the water-cooled base. At the same time, rotate the pressure sleeve so that it screws downward along the external thread section and contacts and presses against the water-cooled base. The pressure sleeve cooperates with the locking rod to install the acquisition plate on the water-cooled base.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0015] 1. In this application, by setting up a fixing fixture, when installing the acquisition plate and the water-cooling base, contactless installation is achieved through the pop-up locking of the fixing fixture. Compared with the traditional bolt fixing method, the operation is more convenient and quick, and high-quality and efficient rapid installation can be performed in a limited space.

[0016] 2. In this application, the screw connection between the compression sleeve and the outer tube allows the fixed end to adjust the torque when fixing the collection plate, ensuring that the fixing force between the collection plate and the cold plate is consistent each time, thereby ensuring the stability of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a conventional bolt connection between a collection plate and a water-cooling base in a test unit structure provided according to an embodiment of the present invention is shown;

[0018] Figure 2 A schematic diagram showing the connection between a collection plate body and a water-cooled base of a volatile collection plate for use in a space irradiation environment provided by an embodiment of the present invention is shown;

[0019] Figure 3 A schematic diagram showing the connection between a collection plate body and a locking rod of a volatile collection plate for use in a space radiation environment provided by an embodiment of the present invention is shown;

[0020] Figure 4 A schematic diagram of the internal structure of a fixing fixture provided according to an embodiment of the present invention is shown.

[0021] Legend:

[0022] 1. Collection plate; 11. Locking column; 111. Round locking ball; 2. Water-cooling base; 21. U-shaped groove; 3. Fixing fixture; 31. Outer tube; 311. External thread section; 32. Locking rod; 321. Retaining ring; 322. Locking groove; 33. Press sleeve; 34. Spring. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0024] See also Figure 1-4 , the present invention provides a technical solution:

[0025] A volatile matter collection plate for use in a space irradiation environment includes a collection plate body 1, a water-cooled base 2, and a fixing fixture 3. A locking column 11 is provided at the center of the upper surface of the collection plate body 1. An integrally formed circular locking ball 111 is provided at the top of the locking column 11 for docking with the fixing fixture 3. A U-shaped groove 21 is provided on the water-cooled base 2 to facilitate the locking column 11 to penetrate the U-shaped groove 21. The collection plate body 1 is placed below the water-cooled base 2, and the collection plate body 1 is mounted on the lower surface of the water-cooled base 2 via the fixing fixture 3.

[0026] Specifically, such as Figure 4 As shown, the fixing fixture 3 includes an outer tube 31, a locking rod 32, a pressing sleeve 33, and a spring 34. The locking rod 32 passes through the interior of the outer tube 31 and slides with it. The middle and lower part of the outer tube 31 is provided with an external thread section 311. The pressing sleeve 33 is sleeved on the outside of the outer tube 31 and screwed together with the external thread section 311. A retaining ring 321 is provided on the outside of the locking rod 32. The spring 34 is sleeved on the outside of the locking rod 32 and is located below the retaining ring 321.

[0027] Specifically, such as Figure 3 As shown, a locking groove 322 is provided at the end of the locking rod 32 , and the locking groove 322 is composed of an arc-shaped groove and a straight-line groove. A pressing block is provided at the top end of the locking rod 32 .

[0028] A method for clamping a volatile matter collection plate in a space radiation environment comprises the following steps:

[0029] S1. Press the pressure block on the top of the locking rod 32, so that the spring 34 is compressed, and the lock groove 322 at the bottom of the locking rod 32 pops out the pressure sleeve 33;

[0030] S2. The lock groove 322 at the bottom of the lock rod 32 engages with the circular lock ball 111 on the lock column 11, so that the acquisition plate 1 is connected to the fixing fixture 3;

[0031] S3. The entire acquisition plate 1 is then moved to the water-cooled base 2 by a fixing fixture 3, so that the acquisition plate 1 is located below the water-cooled base 2 and the lock column 11 enters the U-shaped groove 21;

[0032] S4. Release the pressure block, and the locking rod 32 retracts under the elastic force of the spring 34, driving the collection plate body 1 to be tightly attached to the bottom of the water-cooled base 2. At the same time, rotate the pressing sleeve 33 so that the pressing sleeve 33 is screwed downward along the external thread section 311 and contacts and presses against the water-cooled base 2. The pressing sleeve 33 cooperates with the locking rod 32 to install the collection plate body 1 on the water-cooled base 2.

[0033] In summary, the present embodiment provides a method for clamping a volatile collection plate for a space irradiation environment. Compared with the collection plate fixing method of the existing standard QJ1558B-2016, the collection plate has threads on the back, and personnel hold the collection plate and then fix it with nuts. In addition, there are certain requirements for the operating space and there is a risk of nuts falling. The present invention has a structural design for the collection plate, cold plate, and fixing mechanism, which can be operated by personnel with one hand and quickly installed in a small space. There is no contact with the collection plate by personnel throughout the entire process, which effectively reduces the risk of contamination and ensures weighing accuracy. At the same time, the fixing end can realize torque adjustment to ensure that the fixing force of the collection plate and the cold plate is consistent each time, thereby ensuring the stability of the test.

[0034] The above description of the embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A volatile matter collection plate for use in a space irradiation environment, characterized in that: The invention comprises a collection plate (1), a water-cooling base (2), and a fixing fixture (3); a locking column (11) is provided at the center of the upper surface of the collection plate (1); an integrally formed circular locking ball (111) is provided at the top of the locking column (11); a U-shaped groove (21) is provided on the water-cooling base (2); and the collection plate (1) is mounted on the lower surface of the water-cooling base (2) via the fixing fixture (3); The fixing fixture (3) comprises an outer tube (31), a locking rod (32), a pressing sleeve (33), and a spring (34); the locking rod (32) passes through the interior of the outer tube (31) and is slidably engaged therewith; an external thread section (311) is provided at the middle and lower portion of the outer tube (31); the pressing sleeve (33) is sleeved on the exterior of the outer tube (31) and is screwed together with the external thread section (311); a retaining ring (321) is provided on the exterior of the locking rod (32); and the spring (34) is sleeved on the exterior of the locking rod (32) and is located below the retaining ring (321); The end of the locking rod (32) is provided with a locking groove (322), and the locking groove (322) is composed of an arc-shaped groove and a straight-line groove. The top end of the locking rod (32) is provided with a pressing block.

2. The method for clamping a volatile matter collection plate in a space irradiation environment according to claim 1, characterized in that: The following steps are involved: S1. Press the pressure block on the top of the locking rod (32) to compress the spring (34) and eject the pressing sleeve (33) from the locking groove (322) at the bottom of the locking rod (32); S2. The locking groove (322) at the bottom of the locking rod (32) is engaged with the circular locking ball (111) on the locking column (11), so that the collection plate (1) is connected to the fixing fixture (3); S3. Then, the collecting plate (1) is moved as a whole to the water-cooled base (2) by the fixing fixture (3), so that the collecting plate (1) is located below the water-cooled base (2) and the locking column (11) enters the U-shaped groove (21); S4. Release the pressure block, and the locking rod (32) retracts under the elastic force of the spring (34), driving the collection plate (1) to be tightly attached to the bottom of the water-cooled base (2). At the same time, rotate the pressure sleeve (33) so that the pressure sleeve (33) is screwed downward along the external thread section (311) and contacts and presses against the water-cooled base (2). The pressure sleeve (33) cooperates with the locking rod (32) to install the collection plate (1) on the water-cooled base (2).

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