Control moment gyro high-stability composite base frame

Abstract

The application provides a high-stability composite base frame of a control moment gyro, which comprises a shaft hole embedded block, an upper end frame, a lower end frame, an internal support module, a carbon fiber skin assembly and a carbon fiber cover cap; the shaft hole embedded block is installed on both sides of the lower end frame and symmetrically arranged along the long axis direction of the control moment gyro, and the two ends of the upper end frame are respectively installed on the side portions of the two shaft hole embedded blocks; the internal support module is installed between the lower end frame and the upper end frame to form a base frame structure, the carbon fiber skin assembly is wrapped on both the inner and outer sides of the base frame structure, and the carbon fiber cover cap covers the top of the upper end frame and the top of the shaft hole embedded block. The upper end frame and the lower end frame and the carbon fiber internal support module are in a split type, the support function is realized and the weight is reduced, the mechanical continuity of the base frame is considered, the inner and outer skins are wrapped to form an overall closed configuration, the overall stiffness and shape retention capability of the composite base frame are improved by matching the metal matrix composite shaft hole embedded block, and the precision stability of the shaft hole system of the base frame is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of structure optimization of torque-generating gyro base frame, in particular to a high-stability composite base frame of control moment gyro. BACKGROUND

[0002] The control moment gyro supplies the satellite with rotational energy through angular momentum conservation, so as to achieve the purpose of satellite attitude adjustment. Due to the increasing requirements for the loading capacity and attitude adjustment accuracy of the satellite, the high-torque output control moment gyro with shaft hole system is increasingly widely used. Since the control moment gyro is usually used in combination, the lightweight structure is in urgent need, and high requirements are put forward for the stiffness and coaxial accuracy of the bearing structure shaft hole system.

[0003] The patent document with publication number CN202541847U discloses a torque-generating gyro substructure made of aluminum alloy metal casting. The substructure supports a third mounting surface by first and second support surfaces, and improves the overall stiffness by a connecting surface. However, the structure is only suitable for small satellites, and is not suitable for torque-generating gyro installation with rotors and frame rotation.

[0004] The patent document with publication number CN203010161U discloses a ring frame of a magnetic suspension control moment gyro. Although the ring frame is designed with symmetric circular holes, it is made of metal material, and even if the weight-reducing grooves and reinforcing ribs are used on the radial ring surface, there is still a large optimization space in terms of structure weight, stiffness, and coaxial accuracy of the two shaft ports. SUMMARY

[0005] In view of the defects in the prior art, the purpose of the present application is to provide a high-stability composite base frame of control moment gyro.

[0006] The high-stability composite base frame of control moment gyro provided by the present application comprises shaft hole embedded blocks, upper end frames, lower end frames, internal support modules, carbon fiber skin assemblies, and carbon fiber cover caps.

[0007] The two shaft hole embedded blocks are respectively installed on the two sides of the lower end frame, and are symmetrically arranged on the two sides of the rotor rotation center point along the long axis direction of the control moment gyro. The two ends of the upper end frame are respectively installed on the side portions of the two shaft hole embedded blocks.

[0008] The carbon fiber internal support modules are installed between the lower end frame and the upper end frame. The lower end frame, the upper end frame, the internal support modules, and the shaft hole embedded blocks jointly form a base frame structure. The carbon fiber skin assemblies are wrapped on the inner and outer sides of the base frame structure. The carbon fiber cover caps cover the top portions of the upper end frames and the top portions of the shaft hole embedded blocks.

[0009] Preferably, the middle part of the shaft hole embedded block is provided with a shaft hole matched with the long axis of the control moment gyro, and the two side faces of the shaft hole embedded block are parallel to each other;

[0010] The shaft hole embedded block is provided with an upper insertion slot and a lower insertion slot, the upper insertion slots are symmetrically arranged on the upper parts of the two side faces of the shaft hole embedded block, the lower insertion slots are evenly arranged on the bottom face of the shaft hole embedded block, and the top part of the shaft hole embedded block is provided with a lightening groove;

[0011] The shaft hole embedded block is installed on the top part of the lower end frame through the lower insertion slot, the end part of the upper end frame is inserted into the upper insertion slot on the side face of the shaft hole embedded block, and the upper insertion slot and the lower insertion slot are straight insertion slots.

[0012] Preferably, the outer side face of the shaft hole embedded block is provided with a plurality of installation protruding platform faces, the plurality of installation protruding platform faces are evenly arranged on the outer side of the shaft hole along the circumferential direction of the shaft hole in the middle part of the shaft hole embedded block, and the installation protruding platform faces are used for installing external motors.

[0013] The protruding height of the installation protruding platform face is greater than the thickness of the carbon fiber skin assembly, the installation protruding platform face penetrates through the corresponding through hole on the carbon fiber skin assembly, and the middle part of the installation protruding platform face is provided with an installation threaded hole.

[0014] The bottom part of the shaft hole embedded block is a lower end frame insertion part used for being inserted into the embedded block insertion slot on the side part of the lower end frame, the thickness of the lower end frame insertion part is less than the thickness of the rest part of the shaft hole embedded block, the lower insertion slot is arranged on the bottom part of the lower end frame insertion part, and the installation protruding platform face on the lower end frame insertion part is embedded in the protruding platform face accommodating slot on the side part of the embedded block insertion slot.

[0015] Preferably, the top part of the lower end frame is provided with a rectangular embedded block insertion slot used for being inserted into the bottom part of the shaft hole embedded block, the groove bottom of the embedded block insertion slot is provided with a first embedded block insertion head used for being connected with the lower insertion slot on the bottom part of the shaft hole embedded block.

[0016] The top part of the lower end frame is provided with a support module lower insertion slot along the inner edge, the two ends of the support module lower insertion slot are separated from the two embedded block insertion slots on the two sides through the partition plates respectively, and the bottom part of the internal support module is inserted into the support module lower insertion slot.

[0017] The outer edge of the lower end frame is provided with a planar wing plate, the outer parts of the support module lower insertion slot and the embedded block insertion slot are provided with a skin cementation groove used for mounting the carbon fiber skin assembly, and the inner side wall of the support module lower insertion slot is provided with a threaded hole used for fixing the carbon fiber skin assembly.

[0018] The outer edge of the lower end frame is provided with a fixed supporting leg in the circumferential direction, used for being fixed on an external whole star mounting face, and the two sides of the fixed supporting leg are continuously and integrally connected with the planar wing plate.

[0019] Preferably, the upper end frame is two, two upper end frames are symmetrically arranged on both sides of the rotor rotation center point along the short axis direction of the control moment gyro, and the two ends of the upper end frame are provided with second embedded block plug-in connectors respectively inserted into the upper insertion slots on the side of the two shaft hole embedded blocks;

[0020] The upper end frame is symmetrical to the rotor rotation center point in the long axis direction. In the projection of the top view, the upper end frame is a poor arc segment structure corresponding to the lower end frame,

[0021] The bottom of the upper end frame is provided with a support module upper insertion slot along the inner side thereof, and the top of the internal support module is inserted into the support module upper insertion slot.

[0022] Preferably, the internal support module comprises a carbon fiber rectangular support tube and a cross-shaped grid, and the top end and the bottom end of the carbon fiber rectangular support tube and the cross-shaped grid are respectively inserted into the support module upper insertion slot at the bottom of the upper end frame and the support module lower insertion slot at the top of the lower end frame.

[0023] The bottom end of the carbon fiber rectangular support tube is glued to the support module lower insertion slot, the top end of the carbon fiber rectangular support tube is glued to the support module upper insertion slot, and the middle part of the carbon fiber rectangular support tube is glued to the carbon fiber skin assembly.

[0024] The cross-shaped grid is a square cross-shaped carbon fiber shell glued between the support module upper insertion slot, the support module lower insertion slot, the side of the shaft hole embedded block, and the side of the carbon fiber rectangular support tube.

[0025] Preferably, the carbon fiber skin assembly comprises an equal-thickness inner skin and an outer skin.

[0026] The inner skin is a whole continuous structure glued to the inner side of the base frame structure, and the outer skin is a left-right split type comprising a symmetrical first outer skin, a second outer skin, and a transition lap joint area, the first outer skin and the second outer skin are glued to the outer side of the base frame structure.

[0027] The middle part of the upper end frame and the lower end frame is the maximum radius of the envelope protrusion of the base frame structure, the transition lap joint area is arranged at the maximum radius of the envelope protrusion, and the first outer skin and the second outer skin are connected to the upper end frame and the lower end frame through the transition lap joint area.

[0028] Preferably, the carbon fiber cover cap comprises a shaft hole embedded block carbon fiber cover cap and an upper end frame carbon fiber cover cap.

[0029] The shaft hole embedded block carbon fiber cover cap comprises an arc segment and a plane segment connected on both sides of the arc segment, and the bottom of the shaft hole embedded block carbon fiber cover cap is provided with an embedded block top slot matched with the top configuration of the shaft hole embedded block.

[0030] The bottom of the upper end frame carbon fiber cover cap is provided with an upper end frame top slot matched with the arc segment configuration of the upper end frame, and the top of the upper end frame is inserted into the upper end frame top slot.

[0031] Preferably, the top of the shaft hole embedded block is glued to the shaft hole embedded block carbon fiber cover cap through a glue sheet, and the shaft hole embedded block carbon fiber cover cap and the glue sheet are both provided with through holes corresponding to the threaded holes.

[0032] Preferably, a single machine installation interface is arranged on the base frame, and the single machine installation interface comprises a lower end frame installation interface and an upper end frame installation interface.

[0033] The lower end frame installation interface is in a boss type and is integrally installed on the top of the lower end frame, the upper end frame installation interface is installed on the boss on the outer side of the upper end frame, an installation plane is formed between the lower end frame installation interface and the upper end frame installation interface, and the installation plane is used for installing an external electric single machine and is located outside the carbon fiber skin assembly.

[0034] Compared with the prior art, the present application has the following beneficial effects:

[0035] 1. The upper end frame and the lower end frame of the present application are in a split type, the carbon fiber internal support module between the upper end frame and the lower end frame is combined to realize the support function while reducing the weight by the same proportion, the mechanical continuity and the weight control of the base frame are taken into account, the plug-in cooperation of the upper end frame and the lower end frame with the shaft hole embedded block provides a stable base skeleton basis, the plug-in cooperation form is a reliable connection with high efficiency and low cost, the optimal mechanical force transmission path is realized, the internal support module, the internal and external skin are combined to form a whole closed configuration, and the overall stiffness and stability of the composite base frame are improved.

[0036] 2. The carbon fiber support grid and the carbon fiber rectangular support tube between the upper end frame and the lower end frame are arranged through the glue joint connection mode, and the damping performance is better than that of pure metal, so that the influence of slight vibration is reduced.

[0037] 3. The carbon fiber cover cap and the carbon fiber skin outside the base frame, and the whole continuous wing plate and the reinforcing rib of the lower end frame are designed to stabilize the stiffness of the whole base frame, and the deformation interference caused by the thermal resistance balance problem is comprehensively limited, so that the precision stability and the stiffness shape retention ability of the shaft hole system of the whole base frame are optimal. BRIEF DESCRIPTION OF DRAWINGS

[0038] Other features, objects, and advantages of the application will become apparent from a reading of the detailed description of non-limiting embodiments thereof, taken in conjunction with the following drawings:

[0039] Figure 1 is a schematic view of the overall structure of the application;

[0040] Figure 2 is a schematic view of the structure of the shaft hole embedded block in the application;

[0041] Figure 3 is a schematic view of the structure of the upper end frame in the application;

[0042] Figure 4 is a schematic view of the structure of the lower end frame in the application;

[0043] Figure 5 is a schematic view of the cross section of the upper end frame, the lower end frame and the carbon fiber skin assembly in the application.

[0044] In the figure:

[0045] Shaft hole embedded block 2 Second embedded block plug-in connector 41

[0046] Mounting protruding platform surface 21 Support module upper plug-in slot 42

[0047] Upper plug-in slot 22 Internal support module 5

[0048] Lower plug-in slot 23 Carbon fiber skin assembly 6

[0049] First lightening groove 24 Inner skin 61

[0050] Lower end frame plug-in part 25 Outer skin 62

[0051] Second lightening groove 26 Carbon fiber cover cap 7

[0052] Lower end frame 3 Upper end frame carbon fiber cover cap 71

[0053] Support module lower plug-in slot 31 Shaft hole embedded block carbon fiber cover cap 72

[0054] Skin glue joint groove 32 Base frame lifting point 8

[0055] Embedded block plug-in slot 33 Single machine installation interface 9

[0056] First embedded block plug-in connector 34 Lower end frame installation interface 91

[0057] Protruding platform surface accommodating groove 35 Upper end frame installation interface 92

[0058] Upper end frame 4 DETAILED DESCRIPTION

[0059] The application will be described in detail below with specific examples. The following examples will help those skilled in the art to further understand the application, but do not limit the application in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the application. These are within the scope of protection of the application.

[0060] The application discloses a high-stability composite base frame of a control moment gyro, which adopts split upper end frames and lower end frames, combines carbon fiber internal support modules between the upper end frames and the lower end frames, realizes support function while reducing weight by the same proportion, takes into account the mechanical continuity and weight control of the base frame, takes into account the optimal mechanical force transmission path, and compared with a traditional all-metal frame, reduces the overall weight by the same proportion while improving the overall stiffness and stability of the base frame.

[0061] According to the high-stability composite base frame of the control moment gyro provided by the application, as shown in Figure 1 The shaft hole embedded blocks 2 are two, are installed on the two sides of the lower end frame 3, and the two shaft hole embedded blocks 2 are symmetrically arranged on the two sides of the rotor rotation center point along the long axis direction center of the control moment gyro, and the two ends of the upper end frame 4 are installed on the side of the two shaft hole embedded blocks 2; the carbon fiber internal support module 5 is installed between the lower end frame 3 and the upper end frame 4, the lower end frame 3, the upper end frame 4, the internal support module 5 and the shaft hole embedded block 2 jointly form a base frame structure, the carbon fiber skin assembly 6 is wrapped on the inner and outer sides of the base frame structure, and the carbon fiber cap 7 covers the top of the upper end frame 4 and the top of the shaft hole embedded block 2.

[0062] The application adopts split upper end frames 4, lower end frames 3 and shaft hole embedded blocks 2 to form the overall base frame, supports between the split upper end frames 4 and the lower end frames 3 through the carbon fiber internal support module 5, takes into account the mechanical continuity and weight control of the base frame, and adopts the shaft hole embedded block of the metal matrix composite material, so that the shaft hole system has excellent stiffness and coaxial precision, the split upper end frames 4, the lower end frames 3 and the shaft hole embedded blocks 2 are matched by inserting and connecting in the overall configuration, a stable base skeleton foundation is provided, and the form of mutual insertion and connection is a reliable connection with high efficiency and low cost.

[0063] As shown in Figure 2As shown, the middle of the shaft hole embedded block 2 is provided with a shaft hole matched with the long axis of the control moment gyro, and the two side faces of the shaft hole embedded block 2 are parallel to each other; the shaft hole embedded block 2 is provided with an upper insertion slot 22 and a lower insertion slot 23, both of which are straight insertion slots, the upper insertion slots 22 are symmetrically arranged on the upper part of the two side faces of the shaft hole embedded block 2, preferably, the upper insertion slots 22 are two rectangular slots arranged side by side and connected in the middle, and the lower insertion slots 23 are arranged side by side on the bottom face of the shaft hole embedded block 2, as shown in Figure 4 As shown, the shaft hole embedded block 2 is inserted and installed in the first embedded block insertion joint 34 in the embedded block insertion slot 33 of the lower end frame 3 through the lower insertion slot 23, as shown in Figure 3 As shown, the end of the upper end frame 4 is provided with a second embedded block insertion joint 41, which is inserted and arranged in the upper insertion slot 22 on the side face of the shaft hole embedded block 2 through the second embedded block insertion joint 41, and the installation of the overall base frame is completed. In a preferred example, the top of the shaft hole embedded block 2 is provided with a first lightening slot 24, and the side part of the shaft hole embedded block 2 is provided with a second lightening slot 26 below the upper insertion slot 22;

[0064] As shown in Figure 1 , 2 As shown, the outer side face of the shaft hole embedded block 2 is provided with a plurality of installation protruding platform faces 21, which are uniformly distributed on the outer side of the shaft hole along the circumference of the shaft hole in the shaft hole embedded block 2, and the installation protruding platform faces 21 are used for installing external motors; the protruding height of the installation protruding platform faces 21 is greater than the thickness of the carbon fiber skin assembly 6, and the installation protruding platform faces 21 pass through the corresponding through holes on the carbon fiber skin assembly 6, and the middle part of the installation protruding platform faces 21 is provided with a mounting threaded hole;

[0065] As shown in Figure 2 As shown, the bottom of the shaft hole embedded block 2 is a lower end frame insertion part 25 for insertion into the embedded block insertion slot 33 on the side part of the lower end frame 3, the thickness of the lower end frame insertion part 25 is less than that of the rest of the shaft hole embedded block 2, so that after the lower end frame insertion part 25 is inserted into the embedded block insertion slot 33, the outer surface of the embedded block insertion slot 33 and the outer surface of the rest of the shaft hole embedded block 2 form a plane, and the lower insertion slot 23 is arranged at the bottom of the lower end frame insertion part 25, as shown in Figure 4 As shown, the side part of the embedded block insertion slot 33 is provided with a plurality of protruding platform face accommodating slots 35, and after the lower end frame insertion part 25 is inserted into the embedded block insertion slot 33, the plurality of installation protruding platform faces 21 on the lower end frame insertion part 25 are respectively embedded in the corresponding protruding platform face accommodating slots 35.

[0066] As shown in Figure 4As shown, the top of the lower frame 3 is provided with a rectangular embedded block insertion groove 33 for insertion into the bottom of the shaft hole embedded block 2. The bottom of the embedded block insertion groove 33 is provided with a first embedded block insertion connector 34 for connection with the lower slot 23 at the bottom of the shaft hole embedded block 2. When the bottom of the shaft hole embedded block 2 is inserted into the rectangular embedded block insertion groove 33, the first embedded block insertion connector 34 at the bottom of the embedded block insertion groove 33 is simultaneously inserted into the lower slot 23 at the bottom of the shaft hole embedded block 2. The top of the lower frame 3 is provided with a support module lower insertion groove 31 along its inner edge. Both ends of the support module lower insertion groove 31 are separated from the embedded block insertion grooves 33 on both sides by partitions. The bottom of the internal support module 5 is inserted into the support module lower insertion groove 31. The internal support module 5 is arranged circumferentially between the upper frame 4 and the lower frame 3 to form a uniform and reliable support along the circumferential direction of the base frame.

[0067] The lower frame 3 has a planar wing plate along its outer edge, such as Figure 5 As shown, both the lower insertion slot 31 of the support module and the embedded block insertion slot 33 are provided with skin adhesive grooves 32 for installing the carbon fiber skin assembly 6. The inner side wall of the lower insertion slot 31 of the support module is provided with threaded holes for fixing the carbon fiber skin assembly 6. The outer skin 62 of the carbon fiber skin assembly 6 is inserted into the skin adhesive groove 32 circumferentially and covers the outer side of the shaft hole embedded part 2, the upper frame 4 and the inner support module 5 as a whole. The inner skin 61 of the carbon fiber skin assembly 6 is fixed to the inner side of the overall base frame through the threaded holes in the inner side wall of the lower insertion slot 31 of the support module. The outer edge of the lower frame 3 is provided with fixed feet circumferentially for fixing to the outer whole star mounting surface. The two sides of the fixed feet are continuously and integrally connected to the planar wing plate.

[0068] like Figure 3 As shown, there are two upper frames 4, which are symmetrically arranged on both sides of the rotor's rotation center point along the short axis of the control torque gyroscope. Each end of the upper frame 4 has a second embedded block connector 41, which is inserted into the upper slot 22 on the side of the two shaft hole embedded blocks 2. The upper frame 4 is symmetrical about the rotor's rotation center point along the long axis. In a top-view projection, the upper frame 4 has a minor arc segment structure corresponding to the lower frame 4. The bottom of the upper frame 4 has a support module upper insertion slot 42 along its inner edge, and the top of the internal support module 5 is inserted into the support module upper insertion slot 42. In a top-view projection, the positions of the support module upper insertion slot 42, the internal support module 5, and the support module lower insertion slot 31 correspond to each other.

[0069] The internal support module 5 includes carbon fiber rectangular support tubes and a cross-shaped grid, the top and bottom ends of the carbon fiber rectangular support tubes and the cross-shaped grid are respectively inserted into the support module upper insertion slot 42 at the bottom of the upper end frame 4 and the support module lower insertion slot 31 at the top of the lower end frame 3; the bottom end of the carbon fiber rectangular support tube is glued to the support module lower insertion slot 31, the top end of the carbon fiber rectangular support tube is glued to the support module upper insertion slot 42, and the middle part of the carbon fiber rectangular support tube is glued to the carbon fiber skin assembly; the cross-shaped grid is a square cross-shaped carbon fiber shell, which is glued between the support module upper insertion slot 42, the support module lower insertion slot 31, the side of the shaft hole embedded block 2 and the side of the carbon fiber rectangular support tube, wherein a partition is provided between the cross-shaped grid and the side of the shaft hole embedded block 2, and the cross-shaped grid is not directly connected to the shaft hole embedded block 2. The carbon fiber rectangular support tube and the carbon fiber cross-shaped grid are installed between the upper and lower end frames by gluing, which has better damping performance than pure metal and can effectively reduce the influence of micro-vibration.

[0070] The carbon fiber skin assembly 6 includes an equal-thickness inner skin 61 and an outer skin 62; the inner skin 61 is a whole continuous structure, which is glued and attached to the inner side of the base frame structure, and the outer skin 62 is a left-right split type, which includes a symmetrical first outer skin, a second outer skin and a transition lap joint area, and the first outer skin and the second outer skin are glued and attached to the outer side of the base frame structure; the middle part of the upper end frame 4 and the lower end frame 3 is the envelope protrusion maximum radius of the base frame structure, and the transition lap joint area is arranged at the envelope protrusion maximum radius, and the thickness, lap length and skin of the transition lap joint area are in proportional relationship, and the first outer skin and the second outer skin use glue screws for reinforcement in the transition lap joint area;

[0071] The carbon fiber cover 7 includes a shaft hole embedded block carbon fiber cover 72 and an upper end frame carbon fiber cover 71; the shaft hole embedded block carbon fiber cover 72 includes an arc segment and a flat segment connected on both sides of the arc segment, and the bottom of the shaft hole embedded block carbon fiber cover 72 is provided with an embedded block top insertion slot matched with the top configuration of the shaft hole embedded block 2, and the top of the shaft hole embedded block 2 is inserted into the embedded block top insertion slot; the bottom of the upper end frame carbon fiber cover 71 is provided with an upper end frame top insertion slot matched with the arc segment configuration of the upper end frame 4, and the top of the upper end frame 4 is inserted into the upper end frame top insertion slot. The carbon fiber cover 7 covers the top of the base frame after the skin is covered, which is located at the outermost side of the whole structure and is used to balance the thermal resistance.

[0072] The base frame lifting point 8 is a threaded hole, the top of the shaft hole embedded block 2 is glued with a shaft hole embedded block carbon fiber cover cap 72 through a glue pad, and the shaft hole embedded block carbon fiber cover cap 72 and the glue pad are both provided with a via hole corresponding to the threaded hole. A single machine installation interface 9 is arranged on the base frame, the single machine installation interface 9 includes a lower end frame installation interface 91 and an upper end frame installation interface 92; the lower end frame installation interface 91 is a boss type and is integrally installed on the top of the lower end frame 3, the upper end frame installation interface 92 is installed on the boss on the outer side of the upper end frame 4, and the installation plane is formed between the lower end frame installation interface 91 and the upper end frame installation interface 92, which is used for installing an external electric single machine, and the installation plane is located outside the carbon fiber skin assembly 6.

[0073] In a preferred example, as shown in FIG. Figure 4 Two lower end frame installation interfaces 91 are integrally arranged on the lower end frame 3, and in the projection of the top view, the lower end frame installation interface 91 can be outside the skin gluing groove 32 or inside the skin gluing groove 32, and a notch is arranged on the outer skin 62 corresponding to the skin gluing groove 32, two upper end frame installation interfaces 92 are glued and installed on the outer side of the upper end frame 4, and the two lower end frame installation interfaces 91 and the two upper end frame installation interfaces 92 form an installation plane for installing an electric single machine, and the installation plane needs to be located outside the outer skin 62.

[0074] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0075] The specific embodiments of the present application are described above. It should be understood that the present application is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essential content of the present application. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A highly stable composite base frame for a control torque gyroscope, characterized in that, It includes a shaft hole embedded block (2), an upper frame (4), a lower frame (3), an internal support module (5), a carbon fiber skin assembly (6), and a carbon fiber cap (7); There are two shaft hole embedded blocks (2), which are respectively installed on both sides of the lower end frame (3). The two shaft hole embedded blocks (2) are centrally symmetrically arranged on both sides of the rotor rotation center point along the long axis direction of the control torque gyroscope. The two ends of the upper end frame (4) are respectively installed on the sides of the two shaft hole embedded blocks (2). A carbon fiber internal support module (5) is installed between the lower frame (3) and the upper frame (4). The lower frame (3), the upper frame (4), the internal support module (5), and the shaft hole embedded block (2) together form a base frame structure. The carbon fiber skin assembly (6) covers the inner and outer sides of the base frame structure. The carbon fiber cap (7) covers the top of the upper frame (4) and the top of the shaft hole embedded block (2).

2. The high-stability composite base frame for the control torque gyroscope according to claim 1, characterized in that, The shaft hole embedded block (2) is provided with a shaft hole in the middle that matches the long axis of the control torque gyroscope, and the two sides of the shaft hole embedded block (2) are parallel to each other; The shaft hole embedded block (2) is provided with an upper slot (22) and a lower slot (23). The upper slot (22) is symmetrically arranged on the upper part of both sides of the shaft hole embedded block (2). The lower slot (23) is evenly distributed on the bottom surface of the shaft hole embedded block (2). A light-reducing groove is opened on the top of the shaft hole embedded block (2). The shaft hole embedded block (2) is installed on the top of the lower end frame (3) by inserting it into the lower slot (23). The end of the upper end frame (4) is inserted into the upper slot (22) on the side of the shaft hole embedded block (2). Both the upper slot (22) and the lower slot (23) are straight slots.

3. The high-stability composite base frame for the control torque gyroscope according to claim 2, characterized in that, The outer side of the shaft hole embedded block (2) is provided with a plurality of mounting protrusions (21). The plurality of mounting protrusions (21) are evenly distributed on the outer side of the shaft hole along the circumference of the shaft hole in the shaft hole embedded block (2). The mounting protrusions (21) are used to mount an external motor. The protrusion height of the mounting protrusion (21) is greater than the thickness of the carbon fiber skin assembly (6), and the mounting protrusion (21) passes through the corresponding through hole on the carbon fiber skin assembly (6). A mounting threaded hole is provided in the middle of the mounting protrusion (21). The bottom of the shaft hole embedded block (2) is a lower end frame insertion part (25), which is used to insert into the embedded block insertion groove (33) on the side of the lower end frame (3). The thickness of the lower end frame insertion part (25) is less than the thickness of the rest of the shaft hole embedded block (2). The lower slot (23) is set at the bottom of the lower end frame insertion part (25). The mounting protrusion surface (21) on the lower end frame insertion part (25) is embedded in the protrusion surface receiving groove (35) on the side of the embedded block insertion groove (33).

4. The high-stability composite base frame for the control torque gyroscope according to claim 1, characterized in that, The top of the lower frame (3) is provided with a rectangular embedded block insertion groove (33) for insertion into the bottom of the shaft hole embedded block (2). The bottom of the embedded block insertion groove (33) is provided with a first embedded block insertion connector (34) for connection with the lower slot (23) at the bottom of the shaft hole embedded block (2). The bottom frame (3) has a support module lower insertion groove (31) at its top along its inner edge. Both ends of the support module lower insertion groove (31) are separated from the embedded block insertion grooves (33) on both sides by partitions. The bottom of the internal support module (5) is inserted into the support module lower insertion groove (31). The lower frame (3) is provided with a flat wing plate on its outer edge. The lower insertion groove (31) of the support module and the embedded block insertion groove (33) are both provided with a skin adhesive groove (32) for installing the carbon fiber skin assembly (6). The inner side wall of the lower insertion groove (31) of the support module is provided with a threaded hole for fixing the carbon fiber skin assembly (6). The lower frame (3) is provided with a fixed support foot along the circumferential direction on the outer edge for fixing to the external whole star mounting surface. The two sides of the fixed support foot are continuously and integrally connected to the planar wing plate.

5. The high-stability composite base frame for the control torque gyroscope according to claim 1, characterized in that, The upper frame (4) consists of two parts. The two upper frames (4) are symmetrically arranged on both sides of the rotor rotation center point along the short axis direction of the control torque gyroscope. Both ends of the upper frame (4) are provided with second embedded block connectors (41), which are respectively inserted into the upper slots (22) on the side of the two shaft hole embedded blocks (2). The upper frame (4) is symmetrical about the rotor rotation center point in the long axis direction. In the projection from a top view angle, the upper frame (4) is a minor arc segment structure corresponding to the lower frame. The bottom of the upper frame (4) is provided with a support module upper insertion slot (42) along its inner edge, and the top of the inner support module (5) is inserted into the support module upper insertion slot (42).

6. The high-stability composite base frame for the control torque gyroscope according to claim 1, characterized in that, The internal support module (5) includes a carbon fiber rectangular support tube and a cross-shaped grid. The top and bottom ends of the carbon fiber rectangular support tube and the cross-shaped grid are respectively inserted into the upper insertion slot (42) of the support module at the bottom of the upper frame (4) and the lower insertion slot (31) of the support module at the top of the lower frame (3). The bottom end of the carbon fiber rectangular support tube is glued to the lower insertion groove (31) of the support module, the top end of the carbon fiber rectangular support tube is glued to the upper insertion groove (42) of the support module, and the middle part of the carbon fiber rectangular support tube is glued to the carbon fiber skin assembly. The cross-shaped grid is a square cross-shaped carbon fiber shell, which is glued between the upper insertion groove (42) of the support module, the lower insertion groove (31) of the support module, the side of the shaft hole embedded block (2), and the side of the carbon fiber rectangular support tube.

7. The high-stability composite base frame for the control torque gyroscope according to claim 1, characterized in that, The carbon fiber skin assembly (6) includes an inner skin (61) and an outer skin (62) of equal thickness; The inner skin (61) is an integral continuous structure and is glued to the inner side of the base frame structure. The outer skin (62) is a left and right split type, including a symmetrical first outer skin, a second outer skin and a transition overlap area. The first outer skin and the second outer skin are glued to the outer side of the base frame structure. The middle part of the upper frame (4) and the lower frame (3) is the maximum radius of the envelope protrusion of the base frame structure. The transition overlap area is set at the maximum radius of the envelope protrusion. The first outer skin and the second outer skin are both connected to the upper frame (4) and the lower frame (3) through the transition overlap area by glue screw reinforcement.

8. The high-stability composite base frame for the control torque gyroscope according to claim 1, characterized in that, The carbon fiber cap (7) includes a shaft hole embedded block carbon fiber cap (72) and an upper frame carbon fiber cap (71); The carbon fiber cap (72) for the shaft hole embedded block includes an arc segment and a flat segment connected to both sides of the arc segment. The bottom of the carbon fiber cap (72) for the shaft hole embedded block is provided with a top slot for the embedded block that matches the top configuration of the shaft hole embedded block (2). The top of the shaft hole embedded block (2) is inserted into the top slot for the embedded block. The bottom of the carbon fiber cap (71) of the upper frame is provided with a top slot of the upper frame that matches the arc configuration of the upper frame (4), and the top of the upper frame (4) is inserted into the top slot of the upper frame.

9. The high-stability composite base frame for the control torque gyroscope according to claim 8, characterized in that, The base frame lifting points (8) are symmetrically arranged on both sides of the top of the shaft hole embedded block (2), and the base frame lifting points (8) are threaded holes; The top of the shaft hole embedded block (2) is bonded to the shaft hole embedded block carbon fiber cap (72) by an adhesive patch. Both the shaft hole embedded block carbon fiber cap (72) and the adhesive patch are provided with through holes corresponding to the threaded holes.

10. The high-stability composite base frame for the control torque gyroscope according to claim 1, characterized in that, The base frame is provided with a single-unit installation interface (9), which includes a lower frame installation interface (91) and an upper frame installation interface (92); The lower frame mounting interface (91) is a boss type and is integrally installed on the top of the lower frame (3). The upper frame mounting interface (92) is installed on the boss on the outside of the upper frame (4). The lower frame mounting interface (91) and the upper frame mounting interface (92) form a mounting plane for installing an external electric motor. The mounting plane is located outside the carbon fiber skin assembly (6).

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