Part-replaceable end-bottom integrated equipment bracket and preparation method thereof

Abstract

The invention provides an end-bottom integrated equipment bracket capable of replacing parts. The end-bottom integrated equipment bracket comprises a left end bracket, a right end bracket and a bottom bracket, the left side end support comprises a left diagonal draw bar, a first side draw bar and a first main beam lower connecting lug piece. The right side end support comprises a right diagonal draw bar, a second side draw bar and a second main beam lower connecting lug piece. The left side end support and the right side end support are symmetrical about the central axis of the equipment support. The bottom support comprises a first long rod, a second long rod, a left inclined rod, a right inclined rod, an equipment small bracket, a connector lug, a two-pipe connector, a three-pipe connector and a middle connector lug. According to the equipment support, the end supports on the two sides and the bottom support are combined into a whole, the repeated supporting part is omitted, the weight of the equipment support is reduced, and the positive influence on the flight performance and operation stability of an aircraft is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to an end-bottom integrated equipment support with replaceable parts and a preparation method thereof, and belongs to the structural field. BACKGROUND

[0002] With the progress of composite material technology, the use proportion of the composite material in the field of aircraft design and manufacturing is gradually increased. Functional parts and load-bearing parts of light unmanned aerial vehicles are also gradually replaced by composite materials with higher specific strength. An equipment support is an important structure of an aircraft and is used for supporting various airborne equipment. A traditional equipment support usually adopts a fixed structure form, but the equipment support with the fixed form has the following defects:

[0003] (1) The structure form is fixed, cannot be disassembled and replaced, has poor flexibility, and has high replacement cost;

[0004] (2) The equipment support and an equipment support plate are independently designed, jointly support equipment assemblies, are heavy, affect the aircraft weight design index and the requirement of gravity center and balance control, and thus affect the flight performance and operation stability of the aircraft. SUMMARY

[0005] The application aims to overcome the defects of the prior art and provides an end-bottom integrated equipment support with replaceable parts and a preparation method thereof.

[0006] The application adopts the technical scheme that an end-bottom integrated equipment support with replaceable parts comprises a left end support, a right end support and a bottom support.

[0007] The left end support comprises a left inclined pull rod, a first side pull rod and a first main beam lower connecting lug.

[0008] The right end support comprises a right inclined pull rod, a second side pull rod and a second main beam lower connecting lug.

[0009] The left end support and the right end support are symmetrical about the central axis of the equipment support.

[0010] The bottom support comprises a first long rod, a second long rod, a left inclined rod, a right inclined rod, an equipment small bracket, a joint lug, a two-pipe joint, a three-pipe joint and a middle joint lug.

[0011] One end of the left inclined pull rod is connected with a main beam of an aircraft, the other end is connected with one end of the first side pull rod through an adapter, and the other end of the first side pull rod is connected with the first main beam lower connecting lug. One end of the right inclined pull rod is connected with the main beam, the other end is connected with one end of the second side pull rod through the adapter, and the other end of the second side pull rod is connected with the second main beam lower connecting lug.

[0012] One end of the first side pull rod is connected with one end of the first long rod and one end of the left inclined rod through a three-tube joint, and the other end of the first side pull rod is connected with one end of the second long rod through a two-tube joint; one end of the second side pull rod is connected with the other end of the first long rod and one end of the right inclined rod through a three-tube joint, and the other end of the second side pull rod is connected with the other end of the second long rod through a two-tube joint;

[0013] The middle part of the second long rod is connected with the other end of the left inclined rod and the other end of the right inclined rod through a joint ear piece, the device small bracket is uniformly distributed on the first long rod and the second long rod, the joint ear piece is connected with the middle joint ear piece, and the middle joint ear piece is installed on the main beam of the airplane.

[0014] Further, the left inclined pull rod and the right inclined pull rod comprise a foam sandwich composite component connected with the main beam, an inclined pull rod middle part and a pre-embedded part conversion joint; the pre-embedded part conversion joint is a metal pre-embedded part, one end of which is connected with the inclined pull rod middle part, and the other end of which is provided with a connecting hole for being connected with the first side pull rod or the second side pull rod; the foam sandwich composite component is provided with an arc-shaped flange structure for being bonded with the main beam.

[0015] Further, the first side pull rod and the second side pull rod comprise a side pull rod pre-embedded part and a side pull rod middle part; the side pull rod middle part is provided with an end pre-embedded part at each end.

[0016] Further, the first long rod, the second long rod, the left inclined rod and the right inclined rod are hollow carbon tubes made of carbon fiber material.

[0017] Further, the device small bracket, the main beam lower connecting ear piece, the joint ear piece, the two-tube joint, the three-tube joint and the middle joint ear piece are made of carbon fiber.

[0018] Further, the foam sandwich composite component is a carbon fiber-foam structure, the outside of which is made of carbon fiber and the inside of which is made of PMI foam; the inclined pull rod middle part is a carbon fiber hollow tube, and the pre-embedded part conversion joint is made of alloy material.

[0019] Further, the side pull rod pre-embedded part is made of alloy material, and the side pull rod middle part is a hollow carbon tube.

[0020] Further, when used without obstruction of organisms, the device is installed from top to bottom, the device support is assembled first, and then the device is connected with the device small bracket.

[0021] Further, when used with obstruction of organisms, the device is installed from bottom to top, the device is connected with the device small bracket first, the device is fixed on the bottom support, and then the device and the bottom support are connected and fixed with the end support on the main beam.

[0022] The preparation method of the end-bottom integrated device support of the replaceable part described above comprises:

[0023] The parts of the equipment support are divided into carbon fiber material parts, pre-embedded part composite material parts with foam sandwich and pre-embedded carbon fiber composite material parts according to manufacturing materials;

[0024] The carbon fiber material parts include first long rods, second long rods, left inclined rods, right inclined rods, equipment small brackets, first main beam lower connecting tabs, second main beam lower connecting tabs, two pipe joints and three pipe joints; the pipe parts in the carbon fiber material parts are formed by winding carbon filaments; other parts in the carbon fiber material parts are formed by carbon fiber laying and then molded;

[0025] The pre-embedded carbon fiber composite material parts include first side rods and second side rods; the middle parts of the side rods are first formed according to the forming process of the carbon fiber material parts, then the pre-embedded parts of the side rods are formed by machining, and finally the pre-embedded parts of the side rods are bonded with the middle parts of the side rods;

[0026] The pre-embedded part composite material parts with foam sandwich include left inclined rods and right inclined rods; the middle parts of the inclined rods are first formed according to the forming process of the carbon fiber material pipe parts, and then the pre-embedded parts of the inclined rods and the foam sandwich composite material assemblies are formed by machining; then the foam sandwich structure of the foam sandwich composite material assemblies is formed by winding carbon filaments and laying carbon fiber layers, and the flanges are formed by laying and molding carbon fiber layers.

[0027] Compared with the prior art, the present application has the following advantages:

[0028] 1. The support of the present application is composed of a plurality of rod parts, connecting parts and other basic components, and is detachable, convenient to replace, reduces replacement cost and flexible in form.

[0029] 2. The structure of the present application is composed of metal materials, carbon fibers and PMI foam, which not only ensures the strength of the equipment, but also reduces the weight of the equipment support and meets the use performance.

[0030] 3. The equipment support of the present application integrates the two side end supports and the bottom support, which saves the repeated support part and reduces the weight of the equipment support, and has a positive effect on the flight performance and operation stability of the aircraft.

[0031] 4. The support of the present application can be used not only for organic body shielding equipment assembly, but also for inorganic body shielding equipment assembly, and has wide application. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a schematic view of the overall structure;

[0033] Figure 2 is a schematic view of the inclined rod structure;

[0034] Figure 3 is a schematic view of the side rod structure;

[0035] Figure 4 A partial schematic diagram of the connection under the main beam;

[0036] Figure 5 This is a partial schematic diagram of the supports at both ends;

[0037] Figure 6 This is a schematic diagram of the bottom support. Detailed Implementation

[0038] The present invention will be described in conjunction with the accompanying drawings.

[0039] like Figure 1 As shown, the detachable end-bottom integrated equipment support is a composite material structure, consisting of a left diagonal brace 1, a right diagonal brace 11, a side brace 2, a long rod 3, a left diagonal brace 4, a right diagonal brace 12, a small equipment bracket 5, a connecting lug under the main beam 6, a joint lug 7, a two-pipe joint 8, a three-pipe joint 9, and a joint lug 10 in the middle of the equipment.

[0040] The equipment support is designed as an integrated end support and bottom support, serving as both the end support and the bottom support.

[0041] The end supports are divided into left and right end supports. The left end support consists of a left diagonal tie rod 1, a side tie rod 2 and a connecting lug 6 under the main beam. The right end support consists of a right diagonal tie rod 11, a side tie rod 2 and a connecting lug 6 under the main beam. The two are symmetrically distributed about the central axis of the support.

[0042] like Figure 6 As shown, the bottom support consists of a long rod 3, a left diagonal rod 4, a right diagonal rod 12, a small equipment bracket 5, a connecting lug 6 under the main beam, a connector lug 7, a two-pipe connector 8, a three-pipe connector 9, and a middle connector lug 10.

[0043] The left diagonal tie rod 1 of the end support is bonded to the main beam through the flange 1.5. The side tie rod 2 is a shared support component for the end support and the bottom support. The left diagonal tie rod 1 and the side tie rod 2 are connected by an adapter.

[0044] like Figure 2 As shown, the left diagonal tie rod 1 and the right diagonal tie rod 11 are composed of a foam sandwich composite material assembly 1.1 connected to the main beam, a middle part of the diagonal tie rod 1.2, and an embedded conversion joint 1.3. The conversion joint 1.3 is a metal embedded part, one end of which is connected to the middle part of the diagonal tie rod 1.2, and the other end has a connecting hole 1.4 for connecting to the side tie rod 2. The foam sandwich composite material 1.1 has an arc-shaped flange 1.5 for bonding to the main beam.

[0045] like Figure 3As shown, the side pull rod 2 is composed of a side pull rod pre-embedded part 2.2 and a side pull rod middle part 2.1. The end pre-embedded part 2.2 of the side pull rod 2 is connected with the adapter pre-embedded part 1.3 of the left and right diagonal pull rods 1 and 11 through screws.

[0046] The side pull rod 2 of the bottom support is connected with the long rod 3 through a two-tube joint 8, the side pull rod 2 is connected with another long rod 3 and the left diagonal rod 4 through a three-tube joint 9, the middle part of the long rod 3 is connected with the left and right diagonal rods 4 and 12 through the joint lug 7, the device small bracket 5 is uniformly bonded on the long rod 3, the joint lug 7 is connected with the middle joint lug 10 through screws, and the middle joint lug 10 is bonded on the main beam of the aircraft.

[0047] The long rod 3 is made of carbon fiber material, and the hollow carbon tube can be used for supporting the device on the bottom support and meet the weight reduction requirement.

[0048] The left and right diagonal rods 4 and 12 are made of carbon fiber material, and the hollow carbon tube meets the strength requirement and achieves the weight reduction purpose, and the left and right diagonal rods 4 and 12 strengthen the strength and supporting effect of the bottom support of the device.

[0049] The device small bracket 5 is made of carbon fiber material, the lower surface is bonded with the long rod 3, and the hole position is connected with the device through screws.

[0050] As shown in the figure, Figure 4 The main beam lower connecting lug 6 is made of carbon fiber material, the flange 6.1 is determined according to the position and cross-sectional shape of the main beam, the flange 6.1 is bonded on the main beam, the other side is provided with a hole position 6.2, and the hole position 6.2 is connected with the pre-embedded part 2.1 of the side pull rod 2 through screws.

[0051] The joint lug 7 is made of carbon fiber material, the structure is connected with the long rod 3 and the diagonal rod 4 in the form of a multi-tube joint, a hole position is provided at one end, and the hole position is connected with the middle joint lug 10 through screws.

[0052] The two-tube joint 8 is made of carbon fiber material, one end of the two-tube joint 8 is connected with the long rod 3, and the other end is connected with the side pull rod 2, and the bottom support structure is fixed through cementation.

[0053] The three-tube joint 9 is made of carbon fiber material, three tube openings of the three-tube joint 9 are respectively connected with the side pull rod 2, the long rod 3, the left diagonal rod 4 or the right diagonal rod 12, and the bottom support is fixed through cementation.

[0054] The middle joint lug 10 is made of carbon fiber material, one end is connected with the joint lug 7 through screws, and the other end is designed with a lug according to the shape of the main beam, the lug is bonded with the main beam and fixed on the main beam.

[0055] The right diagonal pull rod 11 is symmetrical to the left diagonal pull rod 1 about the center line of the device, and the composition and function thereof are the same as those of the left diagonal pull rod 1.

[0056] Right diagonal rod 12 is symmetrical to left diagonal rod 4 about the center line of the device, and its structure and function are the same as left diagonal rod 4.

[0057] Design process:

[0058] 1) According to the size, shape, position requirements of the device relative to the main beam, the overall size of the device bottom support and the relative position size of the main beam are designed.

[0059] 2) According to the device connecting hole position, the overall length and width size of the end support are determined, the diagonal rod profile is designed according to the main beam section, the diagonal rod structure form is determined considering the weight and strength requirements, the structure form and size of the adapter 1.3 connecting the side pull rod 2 and the left diagonal rod 1 are designed considering the connection of the end support and the bottom support structure, the form and size of the main beam lower connecting lug 6 are determined considering the connection of the device support and the main beam, and the distance from the hole position of the main beam lower connecting lug to the outermost side of the main beam is about 20-60mm.

[0060] 3) The connecting part 1.1 of the left diagonal rod 1 and the main beam is a carbon fiber-foam structure, the external fiber thickness is usually selected to be 0.8-1.5mm, and the inside is PMI foam. This structure not only realizes the support function of the end support, but also achieves the purpose of weight reduction. The middle pipe 1.2 is carbon fiber, and the L-shaped adapter 1.3 is alloy material. The adapter 1.3 has a hole 1.4, and the size and position of the hole are determined according to the requirements of the device end support hole. The distance between the hole and the main beam should be adjusted, and the distance is usually selected to be 20-60mm. The thickness of the connecting lug of the adapter 1.3 is determined according to the load requirements and strength requirements, and is usually selected to be 4-8mm. This structure not only realizes the connection with the main beam, but also realizes the connection of the end support and the bottom support on the basis of ensuring the structural strength, as shown in Figure 5

[0061] 4) The pre-embedded part 2.2 at both ends of the side pull rod 2 is alloy material, which is used for connection with the L-shaped adapter 1.3 and the main beam lower connecting lug 6. The pre-embedded part 2.2 has a through hole, and the hole position is determined according to the size of the device and the relative position of the main beam. The thickness of the end lug of the pre-embedded part 2.2 is consistent with the thickness of the L-shaped adapter 1.3 lug on the left diagonal rod 1, which ensures balanced stress, and the thickness is generally selected to be 4-8mm. The middle part 2.1 of the side pull rod is a hollow carbon tube, and the length of the carbon tube is determined according to the width of the device and the width of the pre-embedded part 2.2. The carbon tube fiber layer thickness is generally selected to be 0.8-1.5mm, which can realize the function of end and bottom support and achieve the purpose of weight reduction.

[0062] 5) The long rod 3 is a hollow carbon tube, and the length of the rod is designed according to the size of the device. The outer diameter size and layer thickness of the rod are designed according to the load borne by the device support, and the carbon fiber layer thickness is about 0.8-1.5mm to meet the strength requirements. ​

[0063] 6) Left diagonal rod 4, right diagonal rod 12 is hollow carbon tube, carbon fiber layer thickness is about 0.8-1.5mm, carbon tube length is determined according to the length and width size of the equipment, and the support of the bottom support is strengthened.

[0064] 7) The equipment small bracket 5 is carbon fiber material, the number and position of the equipment small bracket 5 are determined according to the length of the equipment and the hole position on the equipment, and the inside shape of the equipment small bracket 5 is determined according to the structure form of the long rod 3, the components are uniformly and equidistantly bonded on the main beam, the equipment small bracket is provided with connecting holes, the hole position and number are determined by the connecting holes on the equipment, and the equipment is fixed on the bracket through screws.

[0065] 8) The main beam lower connecting lug 6 is bonded with the main beam, the shape and size of the main beam lower connecting upper surface 6.1 are determined according to the cross-sectional shape of the main beam, and the main beam lower connecting hole position 6.2 is determined according to the hole position of the embedded part 2.2 on the equipment support side pull rod 2. The thickness of the lower connecting lug is consistent with the thickness of the side pull rod 2 lug to ensure uniform loading, and the thickness is usually selected to be 0.4-0.8mm.

[0066] 9) The joint lug 7 is made of carbon fiber material, the inner surface size is determined according to the long rod 3 and the diagonal rod 4, and the thickness is about 0.8-1.5mm. The lug is provided with a hole position, and the hole position is in the middle position of the equipment bottom support.

[0067] 10) The two inner diameters of the two-pipe joint 8 are determined by the outer diameters of the middle part 2.1 of the long rod 3 and the side pull rod 2, the material is carbon fiber, and the fiber layer thickness is usually selected to be 0.8-1.5mm. The joint 8 bonds the long rod 3 and the side pull rod 2 to realize the fixation of the bottom support.

[0068] 11) The three inner diameters of the three-pipe joint 9 are determined by the outer diameters of the middle part 2.1 of the side pull rod 2, the long rod 3 and the diagonal rod 4, the material is carbon fiber, and the thickness is usually selected to be 0.8-1.5mm. The joint 9 bonds the long rod 3, the side pull rod 2 and the diagonal rod 4 to realize the fixation and support of the bottom support.

[0069] When the product is used, it only needs to be bonded or screwed with the main beam at the designed position. During use, if a part is damaged, the corresponding part can be directly replaced, without the need to replace the entire end support or bottom support, thereby reducing the replacement cost and being flexible in assembly and disassembly.

[0070] Manufacturing process:

[0071] 1) The end-bottom integrated equipment support part structure is divided into three categories according to the manufacturing material: carbon fiber material parts, foam sandwiched embedded part composite material parts and embedded part carbon fiber composite material parts.

[0072] 2) Carbon fiber material parts include long rod 3, left diagonal rod 4, right diagonal rod 12, equipment small bracket 5, main beam lower connecting lug 6, two-pipe joint 8, three-pipe joint 9, etc. Such parts are divided into pipe parts and other parts, the pipe parts are first designed molds and are made by winding carbon filaments; the other parts are made by carbon fiber laying and then molded.

[0073] 3) Embedded parts carbon fiber composite material parts include side tension rod 2. Such parts are first molded according to the carbon fiber material part molding process to process the middle part 2.1 of the side tension rod, then the metal embedded parts 2.2 are machined and molded, and finally the embedded parts are bonded and molded with the carbon pipe.

[0074] 4) Embedded parts composite material parts with foam sandwich include left diagonal tension rod 1 and right diagonal tension rod 11. Such parts are first processed according to the carbon fiber material pipe part molding process to process the middle carbon pipe 1.2, and the metal embedded part 1.3 and the foam part 1.1 are machined and molded, then the carbon filaments are wound and the carbon fiber layer is laid, forming a foam sandwich structure, and the flange 1.5 is molded by carbon fiber layer laying.

[0075] Assembly process:

[0076] 1) Determine the position and overall size of the support relative to the main beam according to the installation equipment position and size, determine the hole position at a certain distance from the outside of the main beam, about 20-60 mm.

[0077] 2) Bond the long rod 3, left diagonal rod 4, right diagonal rod 12 and side tension rod 2 through two-pipe joint 8, three-pipe joint 9 and joint lug 7, paste the equipment small bracket 5 at equal intervals on the long rod 3, and ensure the planeness of the upper surface of the bracket and the relative position of the side tension rod lug during installation. It is recommended to design an assembly tool to ensure assembly accuracy. The main beam lower connecting lug 6 and the middle joint lug 10 are bonded at the determined position according to the hole position of the support, and are bonded and fixed on the main beam through the flange 6.1 of the main beam lower connecting lug 6 and the corresponding position of the middle joint lug 10.

[0078] 3) Connect the 6.2 of the main beam lower connecting lug 6 with the side tension rod 2 embedded part 2.1 of the bottom support with screws, connect the corresponding position of the middle joint lug 10 with the joint lug 7 on the end support with screws, and fix and install the bottom support on the main beam.

[0079] 4) Determine the position of the left diagonal tension rod 1 according to the bonding position of the flange 1.5 of the left diagonal tension rod 1 with the main beam, bond the flange 1.5 with the main beam, cooperate the hole 1.4 of the L-shaped adapter 1.3 with the designed equipment support hole, and install the left end support. Install the right end support in the same way.

[0080] 5) use screw to fix the adapter 1.3 of left oblique pull rod 1 with one end of pre-embedded part 2.2 of side pull rod 2, the fixing mode of right oblique pull rod 11 with side pull rod 2 is same with it, so as to integrate end support with bottom support, and fixedly install on main beam.

[0081] If there is no organism shelter when using, the equipment can be installed from top to bottom by top, first, assemble equipment support, then connect the equipment with equipment small bracket 5 through screw, so as to fixedly install the equipment on the integrated end-bottom support.

[0082] If there is organism shelter when using, the equipment needs to be installed from bottom to top, first, connect the equipment with equipment small bracket 5 through screw, so as to fixedly install the equipment on the bottom support, then connect the equipment and bottom support with end support and fixedly install on main beam.

[0083] If the spare part needs to be replaced when using, only the spare part needs to be replaced, the whole end support or bottom support does not need to be replaced, so as to be convenient to assemble and disassemble, high flexibility, and lower replacement cost.

[0084] The part not described in detail in the application belongs to the known technology of the person skilled in the art.

Claims

1. An integrated end-bottom device bracket with replaceable parts, characterized in that, include: Left end bracket, right end bracket, and bottom bracket; The left end support includes a left diagonal tie rod (1), a first side tie rod, and a lower connecting lug of the first main beam; The right end support includes a right diagonal tie rod (11), a second side tie rod, and a lower connecting lug of the second main beam; The left end bracket and the right end bracket are symmetrical about the central axis of the equipment bracket; The bottom support includes a first long rod, a second long rod, a left diagonal rod (4), a right diagonal rod (12), a small equipment bracket (5), a connector lug (7), a two-pipe connector (8), a three-pipe connector (9), and a middle connector lug (10); One end of the left diagonal tie rod (1) is connected to the main beam of the aircraft, and the other end is connected to one end of the first side tie rod through an adapter. The other end of the first side tie rod is connected to the lower connecting lug of the first main beam. One end of the right diagonal tie rod (11) is connected to the main beam, and the other end is connected to one end of the second side tie rod through an adapter. The other end of the second side tie rod is connected to the lower connecting lug of the second main beam. One end of the first side tie rod is connected to one end of the first long rod and one end of the left diagonal rod (4) via a three-pipe connector (9), and the other end of the first side tie rod is connected to one end of the second long rod via a two-pipe connector (8); one end of the second side tie rod is connected to the other end of the first long rod and one end of the right diagonal rod (12) via a three-pipe connector (9), and the other end of the second side tie rod is connected to the other end of the second long rod via a two-pipe connector (8); The middle part of the second long rod is connected to the other end of the left diagonal rod (4) and the other end of the right diagonal rod (12) through a connector lug (7). The small equipment brackets (5) are evenly distributed on the first long rod and the second long rod. The connector lug (7) is connected to the middle connector lug (10). The middle connector lug (10) is installed on the main beam of the aircraft.

2. The end-bottom integrated equipment bracket with replaceable parts according to claim 1, characterized in that, The left diagonal tie rod (1) and the right diagonal tie rod (11) include a foam sandwich composite material assembly (1.1) connected to the main beam, a middle part of the diagonal tie rod (1.2), and a pre-embedded component conversion joint (1.3); the pre-embedded component conversion joint (1.3) is a metal pre-embedded component, one end of which is connected to the middle part of the diagonal tie rod (1.2), and the other end has a connection hole (1.4) for connecting to the first side tie rod or the second side tie rod. The foam sandwich composite material assembly (1.1) is provided with an arc-shaped flange structure (1.5) for bonding with the main beam.

3. The end-bottom integrated equipment bracket with replaceable parts according to claim 2, characterized in that, The first and second side tie rods include side tie rod embedded parts (2.2) and the middle part of the side tie rod (2.1); the middle part of the side tie rod (2.1) is provided with end embedded parts (2.2) at both ends.

4. The end-bottom integrated equipment bracket with replaceable parts according to claim 3, characterized in that, The first long rod, the second long rod, the left diagonal rod (4), and the right diagonal rod (12) are hollow carbon tubes made of carbon fiber material.

5. The end-bottom integrated equipment bracket with replaceable parts according to claim 4, characterized in that, The materials of the small bracket (5), the connecting lug 6 under the main beam, the joint lug (7), the two-pipe joint (8), the three-pipe joint (9), and the middle joint lug (10) are carbon fiber.

6. The end-bottom integrated equipment bracket with replaceable parts according to claim 5, characterized in that, The foam sandwich composite component (1.1) is a carbon fiber-foam structure, with carbon fiber on the outside and PMI foam on the inside; the middle part of the diagonal tie rod (1.2) is a carbon fiber hollow tube, and the embedded conversion joint (1.3) is an alloy material.

7. The end-bottom integrated equipment bracket with replaceable parts according to claim 6, characterized in that, The side tie rod embedded part (2.2) is made of alloy material, and the middle part of the side tie rod (2.1) is a hollow carbon tube.

8. The end-bottom integrated equipment bracket with replaceable parts according to claim 7, characterized in that, If there is no body obstructing the use of the equipment, and the equipment is installed from top to bottom, the equipment bracket is assembled first, and then the equipment is connected to the equipment bracket (5).

9. The end-bottom integrated equipment bracket with replaceable parts according to claim 8, characterized in that, If an object obstructs the use of the equipment, the equipment is installed from bottom to top. First, connect the equipment to the small bracket (5), fix the equipment on the bottom support, and then connect the equipment and the bottom support together with the end support to the main beam.

10. A method for manufacturing an integrated end-bottom device bracket with replaceable parts according to claim 9, characterized in that, include: The parts of the equipment bracket are classified according to the manufacturing materials as follows: carbon fiber material parts, embedded composite material parts with foam core, and embedded carbon fiber composite material parts. The carbon fiber parts include a first long rod, a second long rod, a left diagonal rod (4), a right diagonal rod (12), a small equipment bracket (5), a connecting lug under the first main beam, a connecting lug under the second main beam, a two-pipe joint (8), and a three-pipe joint (9); the pipe parts in the carbon fiber parts are made of carbon fiber wound together; other parts in the carbon fiber parts are made by laying carbon fiber according to the layup design and then molding. The embedded carbon fiber composite material parts include a first side tie rod and a second side tie rod; firstly, the middle part (2.1) of the side tie rod is processed and formed according to the carbon fiber material parts forming process, then the embedded parts (2.2) of the two side tie rods are machined and formed, and finally the embedded parts (2.2) of the side tie rods are bonded and formed with the middle part (2.1) of the side tie rods; The embedded composite material parts with foam core include a left diagonal tie rod (1) and a right diagonal tie rod (11). First, the middle part (1.2) of the diagonal tie rod is processed according to the molding process of carbon fiber pipe fittings. Then, the embedded part conversion joint (1.3) and the foam core composite material assembly (1.1) are machined. Then, carbon wire is wrapped around the foam to lay the carbon fiber layer, forming the foam core structure of the foam core composite material assembly (1.1). The flange (1.5) is formed by laying the carbon fiber layer.

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