Installation method of guide structure for stator plate of variable gravity tank and variable gravity tank

Abstract

The present application relates to a kind of variable gravity cabinet stator plate guide structure installation method and variable gravity cabinet, variable gravity cabinet stator plate guide structure installation method, comprising the following steps: S1, positioning male seat and guide sliding groove are installed on the set position of tool plate by first positioning screw;S2, positioning female seat and guide rail are installed on the set position of stator plate by second positioning screw;Positioning female seat is further provided with third positioning screw;S3, the guide rail on stator plate is slid into guide sliding groove on tool plate and is positioned, and positioning female seat and positioning male seat are fixedly connected;S4, first positioning screw between positioning male seat and guide sliding groove and tool plate is loosened, guide sliding groove is removed from guide rail, and is installed fixedly to the set position of inner side wall of variable gravity cabinet;S5, positioning male seat is fixedly connected with the inner side wall of variable gravity cabinet by first positioning screw;S6, stator plate and positioning female seat are removed from variable gravity cabinet using guide rail along guide sliding groove.

Description

Technical Field

[0001] This invention relates to the technical field of space-based on-orbit variable gravity cabinets, specifically to an installation method for a guide structure for the stator plate of a variable gravity cabinet and a variable gravity cabinet. Background Technology

[0002] To facilitate operation and maintenance by astronauts, guide rails and mounting bases need to be installed between the centrifuge and the main structure of the experimental cabinet. This ensures both the strength and rigidity of the installation, as well as the installation accuracy of the centrifuge. The guide structure on the main structure of the experimental cabinet is prone to insufficient installation accuracy during installation, resulting in misalignment of the centrifuge stator plate and affecting the normal operation of the centrifuge. Summary of the Invention

[0003] In order to solve one or more technical problems existing in the prior art, the present invention provides an installation method for a guide structure for a variable gravity cabinet stator plate and a variable gravity cabinet.

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: An installation method for a guide structure for a variable gravity cabinet stator plate, comprising the following steps: S1, Install the positioning male seat and guide slide in the set position on the tooling plate using the first positioning screw, and tighten the first positioning screw; S2, the positioning female seat and guide rail are installed in the set position on the stator plate by the second positioning screw, and the second positioning screw is loosened; the positioning female seat is also provided with a third positioning screw; S3, slide the guide rail on the stator plate into the guide groove on the tooling plate and position it. At this time, the positioning female and positioning male are in one-to-one correspondence and arranged adjacent to each other. The positioning female and positioning male are fixedly connected by the third positioning screw and the second positioning screw is tightened. S4, loosen the first positioning screws between the positioning male seat and the guide slide and the tooling plate, remove the positioning male seat and the guide slide along with the stator plate from the tooling plate, then remove the guide slide from the guide rail, and install and fix the guide slide to the set position on the inner side wall of the variable gravity cabinet. S5, the stator plate is assembled onto the inner wall of the variable gravity cabinet via the guide rail along the guide groove, and the positioning male seat is fixedly connected to the inner wall of the variable gravity cabinet via the first positioning screw. S6. Loosen the third positioning screw on the positioning female seat, and remove the stator plate and positioning female seat from the inner wall of the variable gravity cabinet along the guide rail along the guide groove. The guide groove and positioning male seat are now installed on the variable gravity cabinet.

[0005] The beneficial effects of the present invention are as follows: The installation method of the present invention uses a tooling plate for initial positioning and then uses a stator plate for secondary precise positioning, which can effectively improve the installation strength and rigidity, improve the installation accuracy of the guide slide and the positioning seat, and ensure the assembly accuracy of the centrifuge in the future.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the positioning male seat is provided with a positioning opening, which is arranged in the direction of the guide rail insertion into the guide groove; the positioning female seat includes a positioning stop plate adapted to the positioning opening. When the guide rail on the stator plate slides into the guide groove on the tooling plate and is positioned, the positioning stop plate is located in the positioning opening and fits against the inner sidewall of the positioning opening.

[0008] The beneficial effect of adopting the above-mentioned further solution is that by setting a positioning opening, it is convenient to dock and position with the positioning female seat.

[0009] Furthermore, the positioning male seat includes a male seat fixing plate and a positioning ring plate. The male seat fixing plate is provided with a first positioning screw. The positioning ring plate is vertically fixed to the peripheral edge of the male seat fixing plate. The male seat fixing plate is arranged perpendicularly to the positioning stop plate. The positioning ring plate has a U-shaped structure. The positioning ring plate and the male seat fixing plate together form the positioning opening. The opening side of the U-shaped structure is arranged towards the direction of the guide rail insertion guide groove.

[0010] The beneficial effect of adopting the above-mentioned further solution is that by setting a positioning ring plate, it is convenient to cooperate with the specific structure on the positioning female seat.

[0011] Furthermore, the positioning female seat also includes a female seat fixing plate, the female seat fixing plate is provided with a second positioning screw, the positioning stop plate is vertically fixedly connected to the female seat fixing plate, and the positioning stop plate is provided with a third positioning screw.

[0012] Furthermore, the tooling plate is provided with an installation stop at the set position, and the positioning male seat and the guide slide are respectively positioned and installed through the installation stop.

[0013] The beneficial effect of adopting the above-mentioned further solution is that by setting the installation stop, it is convenient to accurately install the positioning male seat and the guide slide on the tooling plate.

[0014] Furthermore, there are two guide grooves and two guide rails, and the guide rails are structurally compatible with the guide grooves; one guide groove is a T-shaped groove and the other guide groove is a U-shaped groove.

[0015] Furthermore, there are twelve positioning female seats, with six positioning female seats distributed between the two guide rails and three positioning female seats distributed on the outer side of each of the two guide rails.

[0016] Furthermore, the guide rail is provided with ball head screws on its side wall, and the guide groove is provided with ball sockets on its side wall; The step of sliding the guide rail on the stator plate into the guide groove on the tooling plate and positioning it includes: sliding the guide rail into the guide groove and pushing it to the bottom so that the ball head screw falls into the ball socket, at which point the positioning of the guide rail and the guide groove is completed.

[0017] The beneficial effects of adopting the above-mentioned further solution are: by setting ball head screws and ball sockets, the positioning between the guide rail and the guide groove is facilitated, and the staff can understand the assembly progress.

[0018] Furthermore, the first positioning screw, the second positioning screw, and the third positioning screw are all non-removable screws.

[0019] A variable gravity cabinet includes a guide structure obtained by the above-described installation method, and a cabinet body. The guide groove and positioning seat are installed on the inner side wall of the cabinet body. The stator plate is provided with an ejection limiting plate, and an ejection screw is threaded through the ejection limiting plate. An abutment plate is provided on the inner side wall of the cabinet body. When the stator plate is assembled to the inner side wall of the cabinet body along the guide groove via the guide rail, the ejection limiting plate and the abutment plate are arranged correspondingly. By turning the ejection screw, the ejection screw holds the abutment plate, causing the guide rail on the stator plate to exit from the cabinet body along the guide groove.

[0020] The beneficial effects of this invention are: the variable gravity cabinet of this invention has high assembly precision of guide slide and positioning seat, which is conducive to the stable installation and use of subsequent centrifuges. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the stator plate and tooling plate assembled together according to the present invention; Figure 2 for Figure 1 Enlarged structural diagram of section A in the middle; Figure 3 This is a schematic diagram of the stator plate of the present invention, which is equipped with guide grooves and positioning male seats; Figure 4 This is a schematic diagram of the tooling plate of the present invention, which is equipped with a positioning female seat and a guide rail; Figure 5 This is a schematic diagram of the assembled stator plate and tooling plate of the present invention. Figure 6 This is a schematic diagram of the internal structure of the cabinet of the present invention.

[0022] The attached diagram lists the components represented by each number as follows: 200. Cabinet; 600. Stator plate; 601. Positioning female seat; 602. Guide rail; 603. Third positioning screw; 604. Second positioning screw; 700, Tooling plate; 701, Positioning male seat; 702, Guide groove; 703, First positioning screw; 704, Mounting stop; 705, Ball socket. Detailed Implementation

[0023] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0024] The installation method of the guide structure for the stator plate of the variable gravity cabinet according to this embodiment includes the following steps: S1, the positioning male seat 701 and the guide slide 702 are installed on the set position of the tooling plate 700 by the first positioning screw 703, and the first positioning screw 703 is tightened. S2, the positioning female seat 601 and the guide rail 602 are installed in the set position of the stator plate 600 by the second positioning screw 604, and the second positioning screw 604 is loosened; the positioning female seat 601 is also provided with a third positioning screw 603. S3, slide the guide rail 602 on the stator plate 600 into the guide groove 702 on the tooling plate 700 and position it. At this time, the positioning female seat 601 and the positioning male seat 701 correspond one to one and are arranged adjacent to each other. The positioning female seat 601 and the positioning male seat 701 are fixedly connected by the third positioning screw 603, and the second positioning screw 604 is tightened. S4, loosen the first positioning screw 703 between the positioning male seat 701 and the guide slide 702 and the tooling plate 700, remove the positioning male seat 701 and the guide slide 702 from the tooling plate 700 along with the stator plate 600, then remove the guide slide 702 from the guide rail 602, and install and fix the guide slide 702 to the set position on the inner side wall of the variable gravity cabinet. S5, the stator plate 600 is assembled onto the inner wall of the variable gravity cabinet via the guide rail 602 along the guide groove 702, and the positioning male seat 701 is fixedly connected to the inner wall of the variable gravity cabinet via the first positioning screw 703. S6, loosen the third positioning screw 603 on the positioning female seat 601, and remove the stator plate 600 and the positioning female seat 601 from the inner side wall of the variable gravity cabinet along the guide rail 602 along the guide slide 702. The guide slide 702 and the positioning male seat 701 are now installed on the variable gravity cabinet.

[0025] In this embodiment, the positioning male seat and guide rail are first accurately positioned using a tooling plate. Then, the accurately positioned positioning male seat and guide rail are used to precisely position the positioning female seat and guide rail on the stator plate (initially, the positioning female seat and guide rail are coarsely positioned on the stator plate). The inner side wall of the cabinet has an installation stop, which can be used to accurately install the guide rail 702.

[0026] like Figure 1 and Figure 2 As shown, the positioning male seat 701 in this embodiment is provided with a positioning opening, which is arranged in the direction in which the guide rail 602 is inserted into the guide groove 702. The positioning female seat 601 includes a positioning stop plate adapted to the positioning opening. When the guide rail 602 on the stator plate 600 slides into the guide groove 702 on the tooling plate 700 and is positioned, the positioning stop plate is located in the positioning opening and fits against the inner sidewall of the positioning opening. By providing a positioning opening, docking and positioning with the positioning female seat is facilitated.

[0027] like Figures 1-5 As shown, the positioning male seat 701 in this embodiment includes a male seat fixing plate and a positioning ring plate. The male seat fixing plate is provided with a first positioning screw 703. The positioning ring plate is vertically fixed to the peripheral edge of the male seat fixing plate. The male seat fixing plate is arranged perpendicularly to the positioning stop plate. The positioning ring plate has a U-shaped structure, and the positioning ring plate and the male seat fixing plate together form the positioning opening. The opening side of the U-shaped structure faces the direction in which the guide rail 602 is inserted into the guide groove 702. By providing the positioning ring plate, it is convenient to cooperate with specific structures on the positioning female seat.

[0028] like Figure 2 As shown, the positioning female seat 601 in this embodiment also includes a female seat fixing plate, a second positioning screw 604 is provided on the female seat fixing plate, the positioning stop plate is vertically fixedly connected to the female seat fixing plate, and a third positioning screw 603 is provided on the positioning stop plate.

[0029] like Figure 2 and Figure 4 As shown, in this embodiment, the tooling plate 700 has a mounting stop 704 at a designated position, and the positioning male seat 701 and the guide slide 702 are positioned and installed through the mounting stop 704. By providing the mounting stop, the precise installation of the positioning male seat and the guide slide on the tooling plate is facilitated.

[0030] In one specific embodiment, there are two guide grooves 702 and two guide rails 602, and the guide rails 602 are structurally compatible with the guide grooves 702; one guide groove 702 is a T-shaped groove and the other guide groove 702 is a U-shaped groove.

[0031] Specifically, the guide rail design in this embodiment decomposes the functions of the two guide grooves. When assembled on the variable gravity cabinet, the lower guide groove, which restricts only the X-direction freedom, is a T-shaped groove that mates with the T-shaped guide rail, with an X-direction clearance of only 0.2mm. The upper guide groove, which restricts the Y-direction freedom, is U-shaped and also mates with the guide rail, with a Y-direction clearance of only 0.2mm. Together, they provide guidance when the centrifuge is inserted into the cabinet, ensuring the clearance meets the tolerance requirements of the electrical connector on the back of the centrifuge. Furthermore, this decomposition of the two groove functions avoids the adjustment difficulties of over-positioning the dual grooves under large-size, large-span conditions. The guide rail uses polytetrafluoroethylene (PTFE) material to reduce friction during centrifuge insertion and removal. To prevent astronauts from pulling the centrifuge out directly during operation, ball sockets are machined at appropriate positions in the guide groove for limiting the Y-direction, and ball head screws are installed on the centrifuge's Y-direction guide rail. When the ball head screw of the centrifuge guide rail falls into the ball socket of the guide groove, it indicates that the centrifuge guide rail is about to disengage from the groove, thus reminding the astronauts of the operation progress.

[0032] like Figures 1-5 As shown, there are twelve positioning female seats 601 in this embodiment. Six positioning female seats 601 are distributed between the two guide rails 602, and three positioning female seats 601 are distributed on the outer side of each of the two guide rails 602.

[0033] like Figure 4 As shown, in this embodiment, the guide rail 602 has a ball-head screw on its side wall, and the guide groove 702 has a ball socket 705 on its side wall. The step of sliding the guide rail 602 on the stator plate 600 into the guide groove 702 on the tooling plate 700 and positioning it includes: sliding the guide rail 602 into the guide groove 702 and pushing it all the way down, causing the ball-head screw to fall into the ball socket 705. At this point, the guide rail 602 and the guide groove 702 are positioned. By providing the ball-head screw and ball socket, the positioning between the guide rail and the guide groove is facilitated, making it easier for workers to understand the assembly progress.

[0034] Preferably, the first positioning screw 703, the second positioning screw 604 and the third positioning screw 603 are all non-removable screws.

[0035] Specifically, in this embodiment, the stator plate 600 adopts an aluminum alloy plate frame structure, and the positioning male seat 701 and positioning female seat 601 are also made of titanium alloy. The guide rail is made of titanium alloy and is covered with a layer of polytetrafluoroethylene (PTFE) groove. PTFE has low friction, ensuring smooth insertion and removal of the guide rail.

[0036] The installation method in this embodiment uses a tooling plate for initial positioning, and then uses a stator plate for secondary precise positioning. This can effectively improve the installation strength and rigidity, improve the installation accuracy of the guide slide and positioning seat, and ensure the assembly accuracy of the centrifuge in the future.

[0037] like Figure 6 As shown, this embodiment also provides a variable gravity cabinet, including a guide structure obtained by the above installation method, and a cabinet body 200. The guide groove 702 and the positioning male seat 701 are installed on the inner side wall of the cabinet body 200. The stator plate 600 is provided with an ejection limiting plate, and an ejection screw is threaded through the ejection limiting plate. The inner side wall of the cabinet body 200 is provided with an abutment plate. When the stator plate 600 is assembled onto the inner side wall of the cabinet body 200 along the guide groove 702 via the guide rail 602, the ejection limiting plate and the abutment plate are arranged correspondingly. By turning the ejection screw, the ejection screw holds the abutment plate, causing the guide rail on the stator plate to exit from the cabinet body along the guide groove.

[0038] Specifically, the ejection limiting plate and the abutment plate can be installed with reference to the assembly method of the positioning male and positioning female. The structure can also adopt the specific structure of the positioning male and positioning female. The difference is that the abutment plate does not have threaded holes, but the ejection screw on the ejection limiting plate is directly abutted on the abutment plate.

[0039] The variable gravity cabinet in this embodiment features high assembly precision of the guide slide and positioning seat, which is beneficial for the stable installation and use of the centrifuge afterwards.

[0040] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for installing a guide structure for a variable gravity cabinet stator plate, characterized in that, Includes the following steps: S1, Install the positioning male seat and guide slide in the set position on the tooling plate using the first positioning screw, and tighten the first positioning screw; S2, the positioning female seat and guide rail are installed in the set position on the stator plate by the second positioning screw, and the second positioning screw is loosened; the positioning female seat is also provided with a third positioning screw; S3, slide the guide rail on the stator plate into the guide groove on the tooling plate and position it. At this time, the positioning female and positioning male are in one-to-one correspondence and arranged adjacent to each other. The positioning female and positioning male are fixedly connected by the third positioning screw and the second positioning screw is tightened. S4, loosen the first positioning screw between the positioning male seat and the guide slide and the tooling plate, remove the positioning male seat and the guide slide along with the stator plate from the tooling plate, then remove the guide slide from the guide rail, and install and fix the guide slide to the set position on the inner side wall of the variable gravity cabinet. S5, the stator plate is assembled onto the inner wall of the variable gravity cabinet via the guide rail along the guide groove, and the positioning male seat is fixedly connected to the inner wall of the variable gravity cabinet via the first positioning screw. S6. Loosen the third positioning screw on the positioning female seat, and remove the stator plate and positioning female seat from the inner wall of the variable gravity cabinet along the guide rail along the guide slide. The guide slide and positioning male seat are now installed on the variable gravity cabinet.

2. The installation method of the guide structure for the stator plate of a variable gravity cabinet according to claim 1, characterized in that, The male positioning seat is provided with a positioning opening, which is arranged in the direction of the guide rail insertion into the guide groove; the female positioning seat includes a positioning stop plate adapted to the positioning opening. When the guide rail on the stator plate slides into the guide groove on the tooling plate and is positioned, the positioning stop plate is located in the positioning opening and fits against the inner sidewall of the positioning opening.

3. The installation method of the guide structure for the stator plate of a variable gravity cabinet according to claim 2, characterized in that, The positioning male seat includes a male seat fixing plate and a positioning ring plate. The male seat fixing plate is provided with a first positioning screw. The positioning ring plate is vertically fixed to the peripheral edge of the male seat fixing plate. The male seat fixing plate is arranged perpendicularly to the positioning stop plate. The positioning ring plate has a U-shaped structure. The positioning ring plate and the male seat fixing plate together form the positioning opening. The opening side of the U-shaped structure is arranged towards the direction of the guide rail insertion guide groove.

4. The installation method of the guide structure for the stator plate of a variable gravity cabinet according to claim 3, characterized in that, The positioning female seat also includes a female seat fixing plate, the female seat fixing plate is provided with a second positioning screw, the positioning stop plate is vertically fixedly connected to the female seat fixing plate, and the positioning stop plate is provided with a third positioning screw.

5. The installation method of the guide structure for the stator plate of a variable gravity cabinet according to claim 1, characterized in that, The tooling plate is provided with an installation stop at a set position, and the positioning male seat and the guide slide are respectively positioned and installed through the installation stop.

6. The installation method of the guide structure for the stator plate of a variable gravity cabinet according to claim 1, characterized in that, There are two guide grooves and two guide rails, and the guide rails are structurally compatible with the guide grooves; one guide groove is a T-shaped groove and the other guide groove is a U-shaped groove.

7. The installation method of the guide structure for the stator plate of a variable gravity cabinet according to claim 6, characterized in that, There are twelve positioning female seats, with six positioning female seats distributed between the two guide rails and three positioning female seats distributed on the outer side of each of the two guide rails.

8. The installation method of the guide structure for the stator plate of a variable gravity cabinet according to claim 1, characterized in that, The guide rail has ball head screws on its side wall and the guide groove has ball sockets on its side wall. The step of sliding the guide rail on the stator plate into the guide groove on the tooling plate and positioning it includes: sliding the guide rail into the guide groove and pushing it to the bottom so that the ball head screw falls into the ball socket, at which point the positioning of the guide rail and the guide groove is completed.

9. The installation method of the guide structure for the stator plate of a variable gravity cabinet according to claim 1, characterized in that, The first positioning screw, the second positioning screw, and the third positioning screw are all non-removable screws.

10. A variable gravity cabinet, characterized in that, The guide structure, including the installation method described in any one of claims 1 to 9, further includes a cabinet. The guide groove and the positioning seat are installed on the inner side wall of the cabinet. The stator plate is provided with an ejection limiting plate, and an ejection screw is threaded through the ejection limiting plate. An abutment plate is provided on the inner side wall of the cabinet. When the stator plate is assembled to the inner side wall of the cabinet along the guide groove via the guide rail, the ejection limiting plate and the abutment plate are arranged correspondingly. By turning the ejection screw, the ejection screw holds the abutment plate, causing the guide rail on the stator plate to exit from the cabinet along the guide groove.

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