Vacuum thermal test tooling for space-borne phased array antenna

Abstract

A kind of tool for vacuum thermal test of spaceborne phased array antenna, belong to the technical field of satellite manufacturing auxiliary tool, for the heat sink device required when phased array antenna is in vacuum thermal test is installed in test tank, test tank is equipped with tank body mouth, upper rail and lower rail, the tool includes: transport module, for transporting heat sink device and along lower rail movable;Support module, for supporting heat sink device when transport module transports heat sink device, support module includes main support frame and vice support frame, main support frame is located on transport module, vice support frame is detachably connected with main support frame;Hoisting module, for hoisting heat sink device, one end of hoisting module is used to be movably connected with upper rail, the other end of hoisting module is used to be connected with heat sink device;Wherein, when heat sink device is hoisted on upper rail by hoisting module, vice support frame is detachably connected with main support frame, so as to remove transport module and support module from tank body mouth.This tool has good reusability and is convenient to adjust.

Description

Technical Field

[0001] This utility model belongs to the field of satellite manufacturing auxiliary tooling, and in particular relates to a tooling for vacuum thermal testing of spaceborne phased array antennas. Background Technology

[0002] To ensure the reliability of spacecraft products (such as phased array antennas) in actual operation, vacuum thermal testing (such as thermal vacuum testing and thermal balance testing) is a necessary procedure to check their functionality and verify their effectiveness. It is worth noting that before vacuum thermal testing, a heat sink device (such as a microwave absorbing heat sink) that combines microwave absorption and external heat flow simulation functions must be externally installed into a test container (such as a thermal vacuum container) to simulate space environment conditions. After the vacuum thermal test, the heat sink device is removed from the test container. This serves two purposes: firstly, to meet the requirements of the vacuum thermal test, and secondly, to overcome the influence of electromagnetic waves generated during the spacecraft product's testing inside the test container on test data and the performance of adjacent components. However, existing tooling is inconvenient to move, and because it is generally fixedly connected to the corresponding specification heat sink device, it enters the test container along with the heat sink device and participates in the vacuum thermal test. This not only results in poor reusability but also causes significant waste in terms of time and cost. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a tooling for vacuum thermal testing of spaceborne phased array antennas, so as to solve at least one of the above technical problems.

[0004] To achieve the above technical objectives, this utility model provides a fixture for vacuum thermal testing of a spaceborne phased array antenna, used to install the heat sink device required for vacuum thermal testing of the phased array antenna inside a test container. One end of the test container has a port for the heat sink device to enter and exit, and the test container is equipped with an upper guide rail and a lower guide rail. The fixture includes: A transport module for transporting the heat sink device and movable along the lower guide rail; A support module is used to support the heat sink device when the transport module transports the heat sink device. The support module includes a main support frame and a secondary support frame. The main support frame is mounted on the transport module, and the secondary support frame is detachably connected to the main support frame. A hoisting module is used to hoist the heat sink device. One end of the hoisting module is movably connected to the upper guide rail, and the other end of the hoisting module is connected to the heat sink device. When the heat sink device is hoisted onto the upper guide rail by the hoisting module, the auxiliary support frame and the main support frame are detachable so that the transport module and the support module can be taken out from the tank opening.

[0005] In one embodiment, the transport module includes a plurality of roller assemblies and at least one support frame. Each roller assembly includes a roller, a roller shaft, and a roller shaft seat. The roller is rotatably connected to the roller shaft seat via the roller shaft. The roller shaft seat is fixedly connected to the support frame. The support frame is used to support the support module, the heat sink device, and the hoisting module.

[0006] In one embodiment, the main support frame includes a main support base, a main support portion, and a main support connecting portion. The main support connecting portion and the main support portion are disposed opposite to each other and connected by the main support base disposed between them. The main support base is used to connect with the transport module. The main support portion is used to support one side of the heat sink device. The main support connecting portion is used to be detachably connected with the secondary support frame so as to support the other side of the heat sink device through the secondary support frame.

[0007] In one embodiment, the main support base is located at the bottom of the main support portion and the main support connecting portion, and the main support base includes at least two main support longitudinal beams and at least one main support transverse beam, with one main support transverse beam connected to two main support longitudinal beams spaced apart.

[0008] In one embodiment, the main support includes at least two main support long columns and at least two main support short longitudinal beams. Each of the main support short longitudinal beams is connected to the main support base through the main support long columns. The main support short longitudinal beams are used to insert and connect to one side of the heat sink device to support one side of the heat sink device.

[0009] In one embodiment, the main support connection includes at least two main support short columns for detachable connection with the secondary support frame.

[0010] In one embodiment, the secondary support frame includes at least two secondary support columns and at least two secondary support longitudinal beams. Each of the secondary support longitudinal beams is detachably connected to the main support frame via the secondary support columns. The secondary support longitudinal beams are used to insert into the other side of the heat sink device to support the other side of the heat sink device.

[0011] In one embodiment, when the transport module transports the heat sink device to a preset position inside the test tank along the length of the lower guide rail, the secondary support frame is located inside the end of the test tank away from the tank opening, so that the main support frame can be removed from the tank opening.

[0012] In one embodiment, the hoisting module includes multiple hoisting components. Each hoisting component includes a rotating member, a rotating shaft, a rotating shaft seat, a hoisting rod, and a limiting locking member. The rotating member is rotatably connected to the rotating shaft seat via the rotating shaft. One end of the hoisting rod is fixedly connected to the rotating shaft seat, and the other end of the hoisting rod is used to connect to the heat sink device. The limiting locking member is used to cooperate with the hoisting rod to limit the fixed position of the heat sink device on the hoisting rod.

[0013] In one embodiment, each of the lifting assemblies further includes a limiting ring for defining the position of the rotating member on the shaft.

[0014] By adopting the above technical solution, this utility model has the following beneficial effects: This utility model discloses a fixture for vacuum thermal testing of a spaceborne phased array antenna. It is used to install the heat sink device required for vacuum thermal testing of the phased array antenna inside a test container. One end of the test container has a container opening for the heat sink device to enter and exit, and the test container is equipped with an upper guide rail and a lower guide rail. The fixture includes: a transport module for transporting the heat sink device and movable along the lower guide rail; a support module for supporting the heat sink device when transported by the transport module, the support module including a main support frame and a secondary support frame, the main support frame being mounted on the transport module and the secondary support frame being detachably connected to the main support frame; and a hoisting module for hoisting the heat sink device, one end of the hoisting module being movably connected to the upper guide rail, and the other end being connected to the heat sink device. When the heat sink device is hoisted onto the upper guide rail by the hoisting module, the secondary support frame is detachable from the main support frame to allow the transport module and support module to be removed from the container opening.

[0015] Compared to existing technologies, firstly, due to the addition of a transport module, the tooling disclosed in this utility model is characterized by its flexible mobility; secondly, since the support module only supports the heat sink device when the transport module transports it, and does not participate in the vacuum thermal test of the spacecraft product, the tooling disclosed in this utility model also has the characteristic of better reusability, which helps to reduce waste in terms of time and cost; thirdly, since the heat sink device is hoisted on the upper guide rail by the hoisting module, and the fixed position of the heat sink device on the hoisting module can be adjusted, the tooling disclosed in this utility model also has the characteristics of convenient adjustment and wide applicability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view of a tooling, heat sink device, and test tank for vacuum thermal testing of a spaceborne phased array antenna, provided in an embodiment of this application.

[0018] Figure 2 The image shows a right view of a tooling, heat sink device, and test tank for vacuum thermal testing of a spaceborne phased array antenna, as provided in an embodiment of this application.

[0019] Figure 3 This is a perspective view of a tooling and heat sink device, upper guide rail and lower guide rail for vacuum thermal testing of a spaceborne phased array antenna provided in an embodiment of this application.

[0020] Figure 4 This is an exploded structural diagram of a tooling and heat sink device for vacuum thermal testing of a spaceborne phased array antenna, provided in an embodiment of this application.

[0021] Figure 5 This is an exploded view of the transport module in a tooling for vacuum thermal testing of a spaceborne phased array antenna, provided in an embodiment of this application.

[0022] Figure 6 This is an exploded structural diagram of the support module in a tooling for vacuum thermal testing of a spaceborne phased array antenna, provided in an embodiment of this application.

[0023] Figure 7 This is an exploded view of the hoisting module in a tooling for vacuum thermal testing of a spaceborne phased array antenna, provided in an embodiment of this application.

[0024] Explanation of reference numerals in the attached figures: 1. Tooling; 2. Heat sink device; 3. Test tank; 4. Upper guide rail; 5. Lower guide rail; 11. Transportation module; 12. Support module; 13. Lifting module; 110. Roller; 111. Roller shaft; 112. Roller shaft seat; 113. Bearing frame; 113a. Bearing long longitudinal beam; 113b. Bearing cross beam; 113c. Bearing reinforcing block; 113d. Bearing short longitudinal beam; 114. First fastener; 120. Main support frame; 120a. Main support long longitudinal beam; 120b. Main support crossbeam; 120c. Main support long upright; 120d. Main support short longitudinal beam; 120e. Main support short upright; 120f. Main support reinforcing beam; 121. Secondary support frame; 121a. Secondary support longitudinal beam; 121b. Secondary support crossbeam; 121c. Secondary support upright; 121d. Secondary support reinforcing beam; 122. Main support connecting plate; 123. Secondary support connecting plate; 124. Secondary fastener; 130. Rotating component; 131. Rotating shaft; 132. Rotating shaft seat; 132a. Side plate; 132b. Base plate; 132c. Clearance opening; 132d. Rotating shaft mounting hole; 132e. Lifting rod fixing hole; 133. Lifting rod; 134. Limiting locking component; 135. Limiting ring; 136. Third fastener; 21. Heat sink mount; 22. Heat sink module; 23. Communication module; 31. Tank opening. Detailed Implementation

[0025] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0027] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, 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 utility model.

[0028] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0029] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0030] According to the inventors, to ensure the reliability of spacecraft products (such as phased array antennas) in actual operation, vacuum thermal testing (such as thermal vacuum testing and thermal balance testing) is a necessary test to check their functionality and verify their effectiveness. It is worth noting that before vacuum thermal testing, a heat sink device (such as a wave-absorbing heat sink) with both wave absorption and external heat flow simulation functions must be installed from the outside into a test container (such as a thermal vacuum container) used to simulate space environment conditions. After the vacuum thermal test, the heat sink device is removed from the test container. This serves two purposes: firstly, to meet the needs of vacuum thermal testing, and secondly, to overcome the influence of electromagnetic waves generated by the spacecraft product during testing in the test container on test data and the performance of adjacent components. However, existing tooling is inconvenient to move, and because it is generally fixedly connected to the corresponding specification heat sink device, it enters the test container along with the heat sink device and participates in the vacuum thermal test. This not only results in poor reusability but also causes significant waste in terms of time and cost.

[0031] To address the issues of low efficiency, poor reusability, and significant waste in current spacecraft product vacuum thermal testing processes, it is necessary to improve or optimize the existing tooling structure.

[0032] Example Please see Figures 1 to 3 This utility model provides a fixture for vacuum thermal testing of a spaceborne phased array antenna. The fixture 1 is used to install the heat sink device 2 required for vacuum thermal testing of the phased array antenna inside the test tank 3. It is worth mentioning that the phased array antenna mentioned here is an antenna system that achieves beam directional scanning by electronically controlling the phase difference of multiple antenna elements. It can dynamically adjust the signal direction without mechanical rotation and has the characteristics of high peak transmission power, large antenna gain, and beamforming capability. It is widely used in low-orbit satellite microwave payloads, such as active phased array antennas that enable each antenna element (transmit / receive module) to have signal generation, amplification, and transmission / reception functions by independently controlling the transmission and reception signals of each antenna element.

[0033] For example, the heat sink device 2 described herein combines microwave absorption and external heat flow simulation functions, and includes a heat sink base 21, a heat sink module 22, and a communication module 23. The heat sink base 21 is a rectangular frame, the heat sink module 22 is installed at the bottom of the heat sink base 21, and the communication module 23 is installed at the center of the heat sink base 21. It is worth noting that the heat sink module 22 includes a microwave absorption component and an external heat flow simulation component. The microwave absorption component is installed on the front of the heat sink module 22 (facing the phased array antenna array), and it consists of multiple absorbing elements, each made of a microwave-absorbing material such as silicon carbide, and can be conical in shape, used to absorb microwaves emitted by the phased array antenna. The external heat flow simulation component is installed on the back of the heat sink module 22, and includes, but is not limited to, electric heating elements and temperature-controlled thermocouples, used for active temperature control of the entire heat sink device 2. The communication module 23 is connected to the phased array antenna via wireless, wired, or fiber optic connections to ensure the radiation efficiency and antenna gain of the phased array antenna. This includes, but is not limited to, pyramidal horn antennas. Thus, by arranging a heat sink 2 above the phased array antenna array, during vacuum thermal testing, the heat sink 2 effectively absorbs the microwaves emitted by the phased array antenna array and applies a suitable external heat flow to the phased array antenna array through radiative heat transfer, meeting the requirements of the vacuum thermal test.

[0034] For example, the test tank 3 mentioned here is cylindrical and is used to simulate space environment conditions, such as a thermal vacuum tank. It is worth noting that one end of the test tank 3 has a tank opening 31 for the heat sink device 2 to enter and exit, and a tank cover (not shown) is installed at the tank opening 31 for opening or closing the tank opening 31. Furthermore, an upper guide rail 4 and a lower guide rail 5 are installed inside the test tank 3. The upper guide rail 4 and the lower guide rail 5 are respectively installed at the top and bottom of the test tank 3, and both extend along the length of the test tank 3, that is, the test tank 3, the upper guide rail 4, and the lower guide rail 5 are parallel to each other in the length direction. Preferably, the longitudinal section of the upper guide rail 4 is an I-shaped or T-shaped linear guide rail adapted to the tooling 1. It should be noted that the upper guide rail 4 and the lower guide rail 5 are already arranged inside the test tank 3 before the heat sink device 2 is installed inside. This facilitates the placement of the heat sink device 2 along the upper guide rail 4 and the lower guide rail 5 in a predetermined area (such as the top area inside the test tank 3) using the tooling 1, in order to meet the requirements of the phased array antenna for vacuum thermal testing.

[0035] For example, please refer to the following: Figures 4 to 7The tooling 1 includes a transport module 11, a support module 12, and a hoisting module 13. The transport module 11 is used to transport the heat sink device 2 and is movable along the lower guide rail 5. To ensure transport stability, the transport module 11 includes multiple roller assemblies and at least one support frame 113, such as three roller assemblies, four roller assemblies, etc. In this embodiment, the transport module 11 includes four roller assemblies and one support frame 113, but is not limited thereto. Each roller assembly includes a roller 110, a roller shaft 111, and a roller shaft seat 112. The roller 110 is rotatably connected to the roller shaft seat 112 via the roller shaft 111, and the roller shaft seat 112 is fixedly connected to the support frame 113. Specifically, each roller 110 is mounted on a roller shaft 111, each roller shaft 111 passes through a roller shaft seat 112, and the four roller shaft seats 112 are mounted along the outer contour of the support frame 113 at the bottom of the support frame 113. For example, the roller bearing 112 has a U-shaped or inverted U-shaped structure. The transport module 11 is movable on the lower guide rail 5 by the rolling of the roller 110. Compared with the prior art, this is beneficial to make the tooling 1 more flexible in movement, thereby reducing the labor intensity of personnel.

[0036] Exemplarily, the support frame 113, used to support the support module 12, the heat sink device 2, and the hoisting module 13, is rectangular in shape, but is not limited thereto. Specifically, the support frame 113 includes at least two long longitudinal beams 113a and at least two cross beams 113b. The two long longitudinal beams 113a are arranged parallel in the horizontal direction, and the two cross beams 113b are also arranged parallel in the horizontal direction. Each cross beam 113b is connected to two adjacent ends of the two long longitudinal beams 113a, forming the outer contour of the support frame 113 by connecting them end-to-end. It should be noted that, for the purpose of improving the structural strength of the support frame 113, in this embodiment, the support frame 113 also includes two cross beams 113b and three short longitudinal beams 113d disposed on the inner side of the support frame 113, that is, Figure 5 The illustrated support frame 113 includes two long longitudinal support beams 113a, four cross beams 113b, and three short longitudinal support beams 113d. Specifically, the four cross beams 113b are spaced apart and connected to the two long longitudinal support beams 113a; each short longitudinal support beam 113d is connected to its adjacent two cross beams 113b. Preferably, the four cross beams 113b are equally spaced in the longitudinal direction, and the three short longitudinal support beams 113d are collinear in the longitudinal direction and located in the middle of the cross beams 113b.

[0037] Furthermore, the support frame 113 also includes load-bearing reinforcing blocks 113c. Specifically, the load-bearing reinforcing blocks 113c are installed at the corners on the inner side of the support frame 113. Preferably, the load-bearing reinforcing blocks 113c are L-shaped. In some embodiments, there are multiple load-bearing reinforcing blocks 113c; in this embodiment, there are twenty-four load-bearing reinforcing blocks 113c. These twenty-four load-bearing reinforcing blocks 113c can be considered as being composed of six groups of load-bearing reinforcing blocks 113c, wherein each group includes four adjacent load-bearing reinforcing blocks 113c located within the same rectangular frame. This is beneficial for improving the load-bearing capacity of the support frame 113.

[0038] It is worth mentioning that, in order to achieve a fixed connection between the roller bearing 112 and the support frame 113, each roller assembly also includes a first fastener 114. The first fastener 114 is used to cooperate with the corresponding mounting holes on the roller bearing 112 and the support frame 113, so that the roller bearing 112 is fixedly connected to the bottom of the support frame 113.

[0039] For example, such as Figure 4 , Figure 6 As shown, the support module 12 is used to support the heat sink device 2 when the transport module 11 transports it. Specifically, the support module 12 is installed on the transport module 11. The support module 12 includes a main support frame 120 and a secondary support frame 121, which together support the opposite sides of the heat sink device 2. The secondary support frame 121 is detachably connected to the main support frame 120, such as by plug-in connection or threaded connection. Compared with the current fixed tooling, according to the inventors, this split structural design allows the secondary support frame 121 to be separated from the main support frame 120 when the heat sink device 2 is hoisted onto the upper guide rail 4 by the hoisting module 13, facilitating the removal of the transport module 11 and the support module 12 from the tank opening 31. By avoiding the impact of the vacuum thermal test of the phased array antenna on the performance of the transport module 11 and the support module 12, this improves the reusability of the transport module 11 and the support module 12.

[0040] Exemplarily, the main support frame 120 includes a main support base, a main support section, and a main support connecting section. The main support connecting section and the main support section are disposed opposite each other and connected by the main support base disposed between them. It should be noted that the main support base is used to connect to the transport module 11, and it is located at the bottom of the main support section and the main support connecting section. The main support base includes at least two main support longitudinal beams 120a and at least one main support transverse beam 120b. The transverse beam 120b is connected to the two spaced-apart main support longitudinal beams 120a. Preferably, the two main support longitudinal beams 120a are arranged parallel in the horizontal direction, and the transverse beam 120b is connected to the middle of each main support longitudinal beam 120a. In this embodiment, the main support base includes two main support longitudinal beams 120a and two main support transverse beams 120b, wherein each transverse beam 120b is perpendicularly connected to two adjacent ends of the two main support longitudinal beams 120a. Increasing the contact area between the main support base and the carrier frame 113 helps to improve the connection stability between the main support frame 120 and the transport module 11.

[0041] The main support section is used to support one side of the heat sink device 2 and is located at one end of the main support base. The main support section includes at least two main support long columns 120c and at least two main support short longitudinal beams 120d. Each main support short longitudinal beam 120d is connected to the main support long columns 120c and connected to the main support base through the main support long columns 120c. Preferably, the main support short longitudinal beams 120d are perpendicular to the main support long columns 120c, and the main support long columns 120c are perpendicular to the plane of the main support base. It should be noted that the main support short longitudinal beams 120d are used for plug-in connection with one side of the heat sink device 2 to support that side.

[0042] The main support connection is detachably connected to the secondary support frame 121 to support the other side of the heat sink device 2 via the secondary support frame 121. Specifically, the main support connection includes at least two main support short columns 120e. One end of each main support short column 120e is connected to the main support base, and the other end of each main support short column 120e is detachably connected to the secondary support frame 121.

[0043] For example, the secondary support frame 121 is used to support the other side of the heat sink device 2. Specifically, the secondary support frame 121 includes at least two secondary support columns 121c and at least two secondary support longitudinal beams 121a. Each secondary support longitudinal beam 121a is connected to the secondary support column 121c and is detachably connected to the main support short column 120e of the main support frame 120 through the secondary support column 121c. Preferably, the secondary support longitudinal beams 121a are perpendicular to the secondary support columns 121c, and the secondary support columns 121c and the main support short columns 120e are collinear in the vertical direction. This facilitates support for the other side of the heat sink device 2. It is worth mentioning that, for the convenience of removing the main support frame 120 from the tank opening 31, when the transport module 11 transports the heat sink device 2 to a preset position inside the test tank 3 (such as a position with a distance of 60cm from the tank opening 31) along the length of the lower guide rail 5, the auxiliary support frame 121 is located on the end of the test tank 3 away from the tank opening 31, i.e. Figure 1 The test tank 3 shown in the image is located on the left side.

[0044] Furthermore, to improve the support stability of the support module 12, in this embodiment, the main support section and the main support connecting section each include a main support crossbeam 120b, and the secondary support frame 121 also includes a secondary support crossbeam 121b. Specifically, the main support section includes two main support crossbeams 120b, the main support connecting section includes one main support crossbeam 120b, and the secondary support frame 121 includes one secondary support crossbeam 121b, but is not limited to these. Specifically, the two main support crossbeams 120b of the main support section are spaced apart, with one connected to two adjacent middle sections of the two main support long columns 120c, and the other connected to each main support short longitudinal beam 120d and the main support long column 120c. One main support crossbeam 120b of the main support connecting section is connected to two adjacent upper ends of the two main support short columns 120e. One of the secondary support beams 121b of the secondary support frame 121 is connected to each of the secondary support longitudinal beams 121a and the secondary support column 121c.

[0045] Furthermore, the main support section and the main support connecting section each include a main support reinforcing beam 120f, and the secondary support frame 121 also includes a secondary support reinforcing beam 121d. Specifically, the main support section includes four main support reinforcing beams 120f, the main support connecting section includes two main support reinforcing beams 120f, and the secondary support frame 121 includes two secondary support reinforcing beams 121d, but is not limited to these. Specifically, two of the four main support reinforcing beams 120f in the main support section are connected to the main support long longitudinal beam 120a and the main support long column 120c, and the other two are connected to the main support short longitudinal beam 120d and the main support long column 120c. The two main support reinforcing beams 120f in the main support connecting section are connected to the main support long longitudinal beam 120a and the main support short column 120e. The two secondary support reinforcing beams 121d in the secondary support frame 121 are connected to the secondary support longitudinal beam 121a and the secondary support column 121c.

[0046] Furthermore, to ensure connection stability, the main support base also includes a main support connecting plate 122. Specifically, the main support connecting plate 122 is installed at the corner where each main support longitudinal beam 120a connects to the main support transverse beam 120b, and is used to cooperate with fastening elements to fix the main support base to the load-bearing frame 113. Preferably, the main support connecting plate 122 has a Z-shaped, gate-shaped, or inverted U-shaped structure or similar structure.

[0047] For example, to achieve a detachable connection between the secondary support frame 121 and the main support frame 120, the secondary support frame 121 further includes a secondary support connecting plate 123 and a second fastener 124. The secondary support connecting plate 123 is fixedly connected to the bottom of the secondary support column 121c and is used to connect with the main support short column 120e. The second fastener 124 is used to engage with corresponding adapter holes on the secondary support connecting plate 123 and the main support short column 120e. Thus, by fastening the second fastener 124 to the secondary support connecting plate 123 of the secondary support frame 121 and the main support short column 120e of the main support connection, the connection between the secondary support frame 121 and the main support frame 120 can be achieved. By removing the second fastener 124 from the adapter hole and separating the secondary support connecting plate 123 of the secondary support frame 121 from the main support short column 120e of the main support connection, the secondary support frame 121 can be removed from the main support connection of the main support frame 120 for removal.

[0048] For example, such as Figure 2 , Figure 3 and Figure 7As shown, the lifting module 13 is used to lift the heat sink device 2. It should be noted that one end of the lifting module 13 is movably connected to the upper guide rail 4, and the other end is connected to the heat sink device 2. To ensure lifting stability, the lifting module 13 includes multiple lifting components, such as one, three, or four. In this embodiment, the lifting module 13 includes four lifting components, but is not limited to this. Each lifting component includes a rotating member 130, a rotating shaft 131, a rotating shaft seat 132, a lifting rod 133, and a limiting locking member 134. The rotating member 130 is rotatably connected to the rotating shaft seat 132 via the rotating shaft 131. One end of the lifting rod 133 is fixedly connected to the rotating shaft seat 132, and the other end of the lifting rod 133 is used to connect to the heat sink seat 21 of the heat sink device 2. The limiting locking member 134 cooperates with the lifting rod 133 to limit the fixed position of the heat sink device 2 on the lifting rod 133. Preferably, each hoisting assembly includes two rotating parts 130, two rotating shafts 131, a rotating shaft seat 132, a hoisting rod 133, and a limiting locking element 134. The two rotating parts 130 are arranged opposite each other, and similarly, the two rotating shafts 131 are also arranged opposite each other. This facilitates stable movement of one end of the hoisting module 13 on the upper guide rail 4 with an I-shaped cross-section. It should be noted that since the hoisting module 13 participates in the vacuum thermal test of the phased array antenna, to prevent volatiles (such as lubricating grease) from significantly affecting the vacuum level and sensitive components (such as optical elements) during the vacuum thermal test, the rotating parts 130 do not contain any volatiles, or after treatment (such as ultrasonic degreasing), the rotating parts 130 contain residual volatiles at a required level.

[0049] For example, the pivot seat 132 is U-shaped and includes two side plates 132a and a base plate 132b. The two side plates 132a are arranged in parallel, and the base plate 132b is connected to two adjacent lower ends of the two side plates 132a. It should be noted that, in order to enable one end of the lifting module 13 to be movably connected to the upper guide rail 4, an upward-facing clearance opening 132c is formed between the base plate 132b and the two side plates 132a. This facilitates the installation of the rotating component 130 and allows the pivot seat 132 to be positioned at the lower part of the upper guide rail 4. Specifically, when the upper end of the lifting module 13 is connected to the upper guide rail 4, the upper guide rail 4 passes through the pivot seat 132, and at this time, the lower part of the upper guide rail 4 is located in the clearance opening 132c. Furthermore, viewed vertically, the bottom edge of the upper guide rail 4 is located between each rotating component 130 and the base plate 132b, and each rotating component 130 is in contact with the upper surface of the bottom edge of the upper guide rail 4. Thus, by rolling each rotating component 130 on the upper guide rail 4, one end of the lifting module 13 can be moved along the length of the upper guide rail 4, thereby facilitating the adjustment of the position of the heat sink device 2 on the upper guide rail 4.

[0050] Furthermore, to achieve the connection between the pivot seat 132, the pivot 131, and the hanger rod 133, each side plate 132a has a pivot mounting hole 132d, and the bottom plate 132b has a hanger rod fixing hole 132e. The pivot mounting hole 132d is used to install the pivot 131, and the hanger rod fixing hole 132e is used to cooperate with a third fastener 136 provided in the hanger rod fixing hole 132e, so that one end of the pivot seat 132 is connected to the hanger rod 133. It should be noted that, to ensure a reliable connection between the hanger rod 133 and the pivot seat 132, in this embodiment, the cross-sectional area of ​​the end of the hanger rod 133 connected to the pivot seat 132 is larger than the cross-sectional area of ​​other parts of the hanger rod 133, such as a disc shape, and this end has a connecting hole that matches the hanger rod fixing hole 132e.

[0051] Furthermore, to meet the test conditions required for phased array antennas of different specifications, such as the vertical height difference between the phased array antenna and the heat sink device 2, and the horizontality of the heat sink device 2 in the horizontal plane, the fixed position of the heat sink device 2 on the boom 133 is adjustable. For example, the adjustable fixed position of the heat sink device 2 on the boom 133 can be achieved based on the adjustable position of the limiting locking member 134 on the boom 133, such as a threaded connection between the limiting locking member 134 and the boom 133, but is not limited to this. Specifically, the boom 133 has an external thread, the limiting locking member 134 has an internal thread, and the internal thread of the limiting locking member 134 is adapted to the external thread of the boom 133. Thus, by engaging the internal thread of the limiting locking member 134 with the external thread of the lifting rod 133, the limiting locking member 134 can be connected to the lifting rod 133. On the other hand, when the heat sink 21 is connected to the lifting module 13, adjusting the connection position of the limiting locking member 134 on the lifting rod 133 helps to limit the fixed position of the heat sink 21 on the lifting rod 133, that is, limit the fixed position of the heat sink device 2 on the lifting rod 133.

[0052] Furthermore, to prevent connection failure of the rotating component 130 on the rotating shaft 131, each lifting assembly also includes a limiting ring 135 for limiting the position of the rotating component 130 on the rotating shaft 131, such as a snap ring, retaining ring, or fastener used to prevent axial displacement of parts on the shaft. Preferably, each lifting assembly includes two limiting rings 135. Specifically, each limiting ring 135 is engaged at one end of the rotating shaft 131 and has a notch on its outer circumferential surface so that the limiting ring 135 is engaged with the rotating shaft 131 through the notch.

[0053] In some embodiments, in order to improve the limiting effect of the limiting ring 135 on the rotating member 130, a groove extending along the outer circumferential surface of the rotating shaft 131 is formed at one end of the rotating shaft 131 connected to the limiting ring 135. This helps to prevent the limiting ring 135 from detaching from the rotating shaft 131.

[0054] To facilitate understanding of the design concept of this tooling 1, its operation process is explained as follows: Before the heat sink device 2 is brought into the test tank 3 by the tooling 1, firstly, the main support frame 120 of the support module 12 is installed on the carrier frame 113 of the transport module 11. Then, the lifting rod 133 and the limiting locking member 134 at the lower end of the lifting module 13 are connected to the heat sink seat 21 of the heat sink device 2. Next, the heat sink device 2 is lifted by connecting the upper end of the lifting module 13 with external lifting equipment (such as a crane or gantry crane) so that the main support part of the main support frame 120 passes through one side of the heat sink device 2 and the auxiliary support frame 121 passes through the other side of the heat sink device 2. Finally, the auxiliary support frame 121 is connected to the main support connection part of the main support frame 120 to ensure that the support module 12 can provide support for the heat sink device 2.

[0055] When the heat sink device 2 is brought into the test tank 3 by the tooling 1, firstly, the heat sink device 2 is lowered by the external hoisting equipment until the main support frame 120 and the auxiliary support frame 121 jointly support the heat sink device 2. Then, the connection between the external hoisting equipment and the upper end of the hoisting module 13 is separated. Then, by moving the transport module 11 along the length direction of the lower guide rail 5, the support module 12, the heat sink device 2 and the hoisting module 13 are transported from the tank opening 31 to the preset position inside the test tank 3, and the upper end of the hoisting module 13 is connected to the upper guide rail 4. Finally, by adjusting the position of the hoisting module 13 on the upper guide rail 4 and the position of the limiting locking member 134 on the lifting rod 133, the position of the heat sink device 2 in the left-right direction and the up-down direction of the test tank 3 is calibrated and locked, thus completing the setting of the heat sink device 2 in the test tank 3 to meet the needs of the vacuum thermal test.

[0056] It is worth mentioning that when the heat sink device 2 is installed in the test tank 3, and one end of the heat sink device 2 is connected to the upper guide rail 4 and suspended below the upper guide rail 4 via the hoisting module 13, the main support frame 120 and the secondary support frame 121 no longer support the heat sink device 2. That is, the weight of the heat sink device 2 itself is borne by the hoisting module 13 and the upper guide rail 4. According to the inventors, in order to facilitate the reuse of the transport module 11 and support module 12 of the tooling 1, the secondary support frame 121 can be separated from the main support frame 120. The secondary support frame 121, the main support frame 120, and the transport module 11 can then be removed from the tank opening 31. This is beneficial for improving reusability and reducing waste.

[0057] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A fixture for vacuum thermal testing of a spaceborne phased array antenna, used to install a heat sink device (2) required for vacuum thermal testing of the phased array antenna inside a test container (3), wherein one end of the test container (3) is provided with a container opening (31) for the heat sink device (2) to enter and exit, and the test container (3) is provided with an upper guide rail (4) and a lower guide rail (5), characterized in that, The tooling (1) includes: A transport module (11) is used to transport the heat sink device (2) and is movable along the lower guide rail (5); A support module (12) is used to support the heat sink device (2) when the transport module (11) transports the heat sink device (2). The support module (12) includes a main support frame (120) and a secondary support frame (121). The main support frame (120) is disposed on the transport module (11), and the secondary support frame (121) is detachably connected to the main support frame (120). A hoisting module (13) is used to hoist the heat sink device (2). One end of the hoisting module (13) is movably connected to the upper guide rail (4), and the other end of the hoisting module (13) is connected to the heat sink device (2). When the heat sink device (2) is hoisted onto the upper guide rail (4) by the hoisting module (13), the auxiliary support frame (121) and the main support frame (120) are detachable so that the transport module (11) and the support module (12) can be taken out from the tank opening (31).

2. The fixture for vacuum thermal testing of a spaceborne phased array antenna as described in claim 1, characterized in that, The transport module (11) includes multiple roller assemblies and at least one support frame (113). Each roller assembly includes a roller (110), a roller shaft (111), and a roller shaft seat (112). The roller (110) is rotatably connected to the roller shaft seat (112) via the roller shaft (111). The roller shaft seat (112) is fixedly connected to the support frame (113). The support frame (113) is used to support the support module (12), the heat sink device (2), and the hoisting module (13).

3. The fixture for vacuum thermal testing of a spaceborne phased array antenna as described in claim 1, characterized in that, The main support frame (120) includes a main support base, a main support part and a main support connecting part. The main support connecting part and the main support part are arranged opposite to each other and connected by the main support base disposed between them. The main support base is used to connect with the transport module (11). The main support part is used to support one side of the heat sink device (2). The main support connecting part is used to detachably connect with the secondary support frame (121) so as to support the other side of the heat sink device (2) through the secondary support frame (121).

4. The fixture for vacuum thermal testing of a spaceborne phased array antenna as described in claim 3, characterized in that, The main support base is located at the bottom of the main support part and the main support connecting part, and the main support base includes at least two main support longitudinal beams (120a) and at least one main support transverse beam (120b), and one main support transverse beam (120b) is connected to the two main support longitudinal beams (120a) that are spaced apart.

5. The fixture for vacuum thermal testing of a spaceborne phased array antenna as described in claim 3, characterized in that, The main support includes at least two main support long columns (120c) and at least two main support short longitudinal beams (120d). Each of the main support short longitudinal beams (120d) is connected to the main support base through the main support long columns (120c). The main support short longitudinal beams (120d) are used to insert and connect to one side of the heat sink device (2) to support one side of the heat sink device (2).

6. The fixture for vacuum thermal testing of a spaceborne phased array antenna as described in claim 3, characterized in that, The main support connection includes at least two main support short columns (120e) for detachable connection with the secondary support frame (121).

7. The fixture for vacuum thermal testing of a spaceborne phased array antenna as described in claim 1, characterized in that, The secondary support frame (121) includes at least two secondary support columns (121c) and at least two secondary support longitudinal beams (121a). Each of the secondary support longitudinal beams (121a) is detachably connected to the main support frame (120) through the secondary support column (121c). The secondary support longitudinal beams (121a) are used to insert and connect to the other side of the heat sink device (2) to support the other side of the heat sink device (2).

8. The fixture for vacuum thermal testing of a spaceborne phased array antenna as described in claim 1, characterized in that, When the transport module (11) transports the heat sink device (2) to a preset position inside the test tank (3) along the length direction of the lower guide rail (5), the auxiliary support frame (121) is located inside the end of the test tank (3) away from the tank opening (31) so that the main support frame (120) can be taken out from the tank opening (31).

9. The fixture for vacuum thermal testing of a spaceborne phased array antenna as described in claim 1, characterized in that, The hoisting module (13) includes multiple hoisting components. Each hoisting component includes a rotating part (130), a rotating shaft (131), a rotating shaft seat (132), a hoisting rod (133), and a limiting locking part (134). The rotating part (130) is rotatably connected to the rotating shaft seat (132) through the rotating shaft (131). One end of the hoisting rod (133) is fixedly connected to the rotating shaft seat (132), and the other end of the hoisting rod (133) is used to connect to the heat sink device (2). The limiting locking part (134) is used to cooperate with the hoisting rod (133) to limit the fixed position of the heat sink device (2) on the hoisting rod (133).

10. The fixture for vacuum thermal testing of a spaceborne phased array antenna as described in claim 9, characterized in that, Each of the lifting assemblies also includes a limiting ring (135) for limiting the position of the rotating member (130) on the rotating shaft (131).

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