Belly photoelectric turret mounting platform

Abstract

The invention belongs to the technical field of aviation, and relates to an airplane belly photoelectric turret mounting platform. The mounting platform comprises an annular mounting plate and a supporting opening frame; wherein the supporting opening frame is composed of a square panel and peripheral vertical edges and is arranged on a skin between a lower wall plate 13-14 frame and a left stringer and a right stringer, an installation opening of the belly photoelectric turret is formed in the center of the square panel, and an annular boss protruding inwards is arranged on the periphery of the installation opening; the annular installation plate is provided with an annular boss protruding outwards, and the annular boss is matched with the annular boss to achieve installation of the belly photoelectric turret. And the annular mounting plate is arranged on the 13-14 frames of the lower wall plate and skins among the left and right three stringers.

Description

Technical Field

[0001] The invention belongs to the field of aviation technology and relates to a belly optoelectronic turret installation platform. Background Art

[0002] The installation platform of large airborne equipment on the aircraft usually uses the aircraft frame and long stringers to form an installation platform through reinforcing pads and reinforcing ribs, which is only used to install the equipment. When installing rotating equipment such as optoelectronic turrets, the weight is strengthened, and the root fixed installation structure is prone to vibration under the action of aerodynamic external loads. According to the requirements for the installation of an optoelectronic turret under the belly of a certain type of aircraft, an integrated design of the installation platform, fairing, and optoelectronic turret is adopted, and a new optoelectronic turret installation platform is set up. The annular boss protruding inwardly of the support frame and the annular boss protruding outwardly of the annular mounting plate are firmly matched. The support frame bears the weight load and rotation load of the optoelectronic turret, realizing the installation of the optoelectronic turret and fairing on the belly of the aircraft, effectively reducing the occurrence of vibration of the fixed installation structure at the root of the optoelectronic turret, and has the characteristics of high installation strength and light weight. Summary of the invention

[0003] Purpose of the invention: The present invention provides an installation platform for large airborne equipment such as an optoelectronic turret installation platform under the belly of an aircraft. The installation platform ensures the installation of the optoelectronic turret, while reducing and improving the vibration effect of the optoelectronic turret on its root fixed installation structure under the action of aerodynamic external loads.

[0004] Technical solution:

[0005] Provided is a belly optoelectronic turret installation platform, comprising: an annular installation plate and a support opening frame;

[0006] Among them, the supporting opening frame is composed of a square panel and vertical edges around it, and is arranged on the skin between the lower wall panels 13-14 frames and the left and right two long stringers. An installation opening for the belly optoelectronic turret is opened in the center of the square panel, and an annular boss protruding inward is arranged around the installation opening; the annular mounting plate is provided with an annular boss protruding outward, and the annular boss cooperates with the annular boss to realize the installation of the belly optoelectronic turret; the annular mounting plate is arranged on the skin between the lower wall panels 13-14 frames and the left and right three long stringers.

[0007] Furthermore, the photoelectric turret positioning pin hole and the bolt connection hole are arranged at the same position of the annular boss plane corresponding to the annular boss plane.

[0008] Furthermore, reinforcing ribs are arranged between the annular boss and the vertical edges around the mouth frame.

[0009] Furthermore, the 2nd long girder on the left side and the 2nd long girder on the right side are disconnected in the mouth frame area, and the front and rear ends of the 0th long girder and the left and right 1st long girder are riveted to the vertical edges of the mouth frame through girder joints or angle pieces. Longitudinal beams are designed to be added at the axial positions of the left and right long girders between frames 13 and 14 on the left and right sides of the mouth frame. The longitudinal beams adopt a riveted structure of edge strips and webs, and the front and rear ends of the longitudinal beams are connected to the ends of the left and right long girders at frames 13 to 14 through angle pieces and plate bends.

[0010] Furthermore, the frame edges of frames 13 to 14 are disconnected between the left and right 7 long girders, and a reinforced frame edge is arranged at the frame position of frames 13 to 14 between the left and right 7 long girders. The reinforced frame edge adopts a riveted structure of edge strips and webs, and both ends are overlapped and connected to the disconnected position of the frame edges of frames 13 to 14 outside the 7th long girders.

[0011] Furthermore, reinforcing pads are added between frames 12 to 15 and the five long stringers on the left and right inside the fuselage skin, and openings are added for the optoelectronic turret turntable and the electrical control box to enter the fuselage cabin. The annular mounting plate, the supporting opening frame, the fuselage skin and the reinforcing pads are riveted together, and the vertical edges around the supporting opening frame are riveted together with the reinforcing frame edges of frames 13 and 14 and the longitudinal beams at the axis position of the two long stringers on the left and right.

[0012] Beneficial effects:

[0013] 1) It provides an installation platform for large airborne equipment such as the optoelectronic turret installation platform under the belly of the aircraft.

[0014] 2) The integrated design of the installation platform, fairing and optoelectronic turret ensures the installation of the optoelectronic turret, while reducing and improving the vibration effect of the optoelectronic turret on its root fixed installation structure under the action of aerodynamic external loads.

[0015] 3) The mounting plate is a milling-cut integral part, and its lower annular surface is the optoelectronic turret mounting fitting surface. Optoelectronic turret locating pin holes and bolt connection holes are arranged around the annular mounting fitting surface, which has high mounting strength and light weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1a This is a schematic diagram of the structure of the annular mounting plate of the optoelectronic turret.

[0017] Figure 1b 1 is a cross-sectional view of the annular mounting plate of the optoelectronic turret.

[0018] Figure 1c 2 is a cross-sectional view of the annular mounting plate of the optoelectronic turret.

[0019] Figure 2a It is a schematic diagram of the structure of the supporting frame of the optoelectronic turret.

[0020] Figure 2b 1 is a cross-sectional view of the support frame of the optoelectronic turret.

[0021] Figure 2c2 is a cross-sectional view of the support frame of the optoelectronic turret.

[0022] Figure 3 This is a schematic diagram of the structure of the belly optoelectronic turret installation platform.

[0023] Among them: 1-supporting mouth frame, 2-annular mounting plate, 3-annular boss protruding outwardly of the annular mounting plate, 4-annular boss protruding inwardly of the supporting mouth frame, 5-reinforcement ribs, 6-photoelectric turret, 7-fairing. DETAILED DESCRIPTION

[0024] The present invention provides a belly optoelectronic turret installation platform, such as Figure 3 As shown, the installation platform consists of an optoelectronic turret annular installation plate 1, a support frame 2, a reinforcement pad 3 and a reinforcement rib 4, etc., and an opening is added for the optoelectronic turret turntable and the electric control box to enter the fuselage cabin. The annular installation plate, the support frame, the fuselage skin and the reinforcement pad are riveted together, and the vertical edges around the support frame are riveted together with the reinforcement frame edges of the 13 and 14 frames and the longitudinal beams at the axis positions of the left and right long girders. The installation platform, fairing and optoelectronic turret are integrated to ensure the installation of the optoelectronic turret, while reducing and improving the buffeting effect of the optoelectronic turret on its root fixed installation structure under the action of aerodynamic external loads.

[0025] As shown in Figure 1, according to the installation requirements of the mission system to replace the new improved optoelectronic turret, the present invention designs and arranges an optoelectronic turret annular mounting plate on the outer skin between the lower wall panels 13-14 frames and the left and right three long stringers. The mounting plate is made of 2124-T851 and milled as an integral part. The lower annular surface is the optoelectronic turret mounting fitting surface, and optoelectronic turret locating pin holes and bolt connection holes are arranged around the annular mounting fitting surface.

[0026] As shown in Figure 2, an optoelectronic turret support frame is designed and arranged in the skin between the two left and right long stringers. The frame is made of 2124-T851 and is milled and processed as an integral part. An annular boss is arranged around the frame. The optoelectronic turret locating pin holes and bolt connection holes are arranged at the same positions of the annular mounting plate on the plane of the annular boss, and reinforcing ribs are arranged between the annular boss and the vertical edges around the frame.

[0027] The left side 2 to the right side 2 long stringers are disconnected in the mouth frame area, and the front and rear ends of the 0 long stringer and the left and right 1 long stringer are riveted to the mouth frame vertical edges through long stringer joints or angle pieces. Longitudinal beams are designed to be added at the axial positions of the left and right 2 long stringers between frames 13 and 14 on the left and right sides of the mouth frame. The longitudinal beams adopt a riveted structure of edge strips and webs, and the front and rear ends of the longitudinal beams are connected to the ends of the left and right 2 long stringers at frames 13 and 14 through angle pieces and plate bends.

[0028] The frame edges of frames 13 and 14 are disconnected between the left and right 7 long girders. Reinforced frame edges are arranged at the frame positions of frames 13 and 14 between the left and right 7 long girders. The reinforced frame edges adopt a riveted structure of edge strips and webs, and both ends are overlapped and connected with the disconnected parts of the frame edges of frames 13 and 14 outside the 7 long girder.

[0029] Reinforcing pads are added between frames 12 to 15 and the five long stringers on the left and right inside the fuselage skin, and openings are added for the optoelectronic turret turntable and the electrical control box to enter the fuselage cabin. The annular mounting plate, the supporting opening frame, the fuselage skin and the reinforcing pads are riveted together, and the vertical edges around the supporting opening frame are riveted together with the reinforced frame edges of frames 13 and 14 and the longitudinal beams at the axis position of the two long stringers on the left and right.

Claims

1. A belly optoelectronic turret installation platform, characterized in that: include: Annular mounting plate and supporting opening frame; Among them, the supporting opening frame is composed of a square panel and vertical edges around it, and is arranged on the skin between the lower wall panels 13-14 frames and the left and right two long stringers. An installation opening for the belly optoelectronic turret is opened in the center of the square panel, and an annular boss protruding inward is arranged around the installation opening; the annular mounting plate is provided with an annular boss protruding outward, and the annular boss cooperates with the annular boss to realize the installation of the belly optoelectronic turret; the annular mounting plate is arranged on the skin between the lower wall panels 13-14 frames and the left and right three long stringers.

2. The installation platform according to claim 1, characterized in that: The photoelectric turret positioning pin hole and the bolt connection hole are arranged at the same position of the annular boss plane corresponding to the annular boss plane.

3. The installation platform according to claim 1, characterized in that: Reinforcing ribs are arranged between the annular boss and the vertical edges around the mouth frame.

4. The installation platform according to claim 1, characterized in that: The 2nd long girder on the left side and the 2nd long girder on the right side are disconnected in the mouth frame area. The front and rear ends of the 0th long girder and the 1st long girder on the left and right sides are riveted to the vertical edges of the mouth frame through girder joints or angle pieces. Additional longitudinal beams are designed at the axial positions of the 2 long girder on the left and right sides of the mouth frame between frames 13 and 14. The longitudinal beams adopt a riveted structure of edge strips and webs, and the front and rear ends of the longitudinal beams are connected to the ends of the 2 long girder on the left and right sides at frames 13 and 14 through angle pieces and plate bends.

5. The installation platform according to claim 1, characterized in that: The frame edges of frames 13 to 14 are disconnected between the left and right 7 long girders, and a reinforced frame edge is arranged at the frame position of frames 13 to 14 between the left and right 7 long girders.

6. The installation platform according to claim 5, characterized in that: The reinforced frame edge adopts a riveted structure of edge strips and webs, and the two ends are overlapped and connected with the disconnected parts of the frame edges of frames 13 to 14 outside the 7th long girder.

7. The installation platform according to claim 1, characterized in that: Reinforcing plates are added between frames 12 to 15 inside the fuselage skin and between the 5 long spars on the left and right. Openings are added for the optoelectronic turret turntable and the electrical control box to enter the fuselage cabin. The annular mounting plate, supporting frame, fuselage skin and reinforcing plates are riveted together.

8. The installation platform according to claim 7, characterized in that: The vertical edges around the supporting frame are riveted together with the reinforced frame edges of frames 13 and 14 and the longitudinal beams at the axis positions of the two long girders on the left and right.

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