Platform main body for large-tonnage reloading air-drop

Abstract

The invention discloses a cargo platform main body for large-tonnage reloading air-drop. An internal bearing structure of the platform main body is composed of steel profile cross beams and longitudinal beams, and the four longitudinal beams serve as raceway plates to support the platform on four bearing rolling rods of an airplane; a traction device and an unlocking device mounting seat are respectively arranged at the front and rear ends of the platform main body; the guide blocks (4) are arranged in concave seats of a front beam and a rear beam of the platform main body to ensure that the platform moves along the central guide rail; when the cargo platform leaves the airplane, the stop lever of the unlocking device touches the lengthened rolling rod on the edge of the inclined platform at the tail of the airplane, the rocker arm of the unlocking device drives the traction device to act, and the traction system turns to start the main parachute system. The platform body is light in weight and suitable for air-drop of heavy goods with large weight.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of heavy equipment air drop, in particular to a cargo platform body for heavy equipment air drop. BACKGROUND

[0002] The existing heavy equipment air drop system has a heavy cargo platform body and small load capacity, and cannot meet the air drop of heavy equipment. The domestic heavy equipment air drop system has not reached the corresponding tonnage. Therefore, a light and heavy cargo platform body for heavy equipment air drop is needed. SUMMARY

[0003] The present application relates to the field of heavy equipment air drop, in particular to a cargo platform body for heavy equipment air drop.

[0004] The technical solution for achieving the present application is a cargo platform body for heavy equipment air drop, characterized in that the internal load-bearing structure of the cargo platform body is composed of steel section beams and longitudinal beams, and four longitudinal beams serve as the roller plates to support the cargo platform on the four load-bearing rollers of the aircraft. The cargo platform body is provided with a towing device and a lock release device mounting seat at the front and rear ends, respectively. The guide blocks are installed in the recesses of the front and rear beams of the cargo platform body to ensure the movement of the cargo platform along the central guide rail. When the cargo platform leaves the aircraft, the blocking rod of the lock release device touches the extended roller at the edge of the inclined platform at the rear of the aircraft, and the rocking arm of the lock release device drives the towing device to act, thereby starting the main parachute system.

[0005] Further, the panels in the cargo platform body are welded above the frame, the lock release device is installed at the front end of the frame through bolt connection, and the two guide blocks are installed at the front and rear ends below the frame through bolt connection. The lock release cable passes through the frame, one end of which is connected with the lock release device, and the other end is connected with the towing device of the air drop system.

[0006] Further, the frame includes longitudinal beams, cross beams, small longitudinal beams and small cross beams. The longitudinal beams and small longitudinal beams are along the length direction of the cargo platform body, and the cross beams and small cross beams are along the width direction of the cargo platform body. The longitudinal beams and cross beams are both I-beams, which are connected with each other by welding to form a rectangular frame. The small longitudinal beams and small cross beams are both channel steels, which are welded in the rectangular frame grid and in contact with the panels.

[0007] Further, the unlocking device comprises a No. 1 support, a No. 2 support, an unlocking lever, a blocking rod, a large lever ring, an unlocking spring, a small lever ring, a safety pin and a steel rope adjuster; the No. 1 support and the No. 2 support are installed on the crossbeam at the front end of the frame, and the unlocking lever passes through the holes in the No. 1 support and the No. 2 support; the small lever ring, the unlocking spring and the large lever ring are sequentially installed on the unlocking lever, the small lever ring is fixed on the unlocking lever by bolts, and the large lever ring is fixed on the unlocking lever by screws; the blocking rod is installed at the end of the unlocking lever by bolts; the steel rope adjuster is used for adjusting the length of the unlocking steel rope; and the safety pin is inserted into the corresponding holes of the No. 2 support and the unlocking lever.

[0008] Further, the guide block comprises an outer frame, a bushing, a corner clamp, a connecting rod and a stud; the corner clamp and the bushing are threadedly connected through the stud, and then assembled on the outer frame through the connecting rod; and the outer frame is installed on the frame through bolts.

[0009] Compared with the prior art, the present application has the following advantages: (1) the cargo platform body of the present application is suitable for the air drop of large-tonnage cargo; and (2) the cargo platform body of the present application reduces the weight. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 Fig. 1 is a structural schematic view of the cargo platform body of the present application.

[0011] Figure 2 Fig. 4 is a schematic view of the frame of the present application.

[0012] Figure 3 Fig. 5 is a schematic view of the unlocking device of the present application.

[0013] Figure 4 Fig. 6 is a schematic view of the guide block of the present application. DETAILED DESCRIPTION

[0014] The inner bearing structure of the cargo platform body is composed of steel section crossbeams and longitudinal beams, and the four longitudinal beams support the cargo platform on the four bearing rollers of the airplane as the roller plates; the traction device and the unlocking device mounting seat are arranged at the front and rear ends of the cargo platform body respectively; the guide block is installed in the recess of the front and rear beams of the cargo platform body to ensure the movement of the cargo platform along the central guide rail; the cargo platform body is designed with the unlocking device, when the cargo platform leaves the airplane, the blocking rod of the unlocking device touches the elongated roller at the edge of the inclined platform at the tail of the airplane, the rocker arm of the unlocking device drives the traction device to act, and the traction system is started to turn the main parachute system.

[0015] The present application will be further described below in combination with the drawings and examples.

[0016] In combination with Figure 1The main body of the cargo platform is mainly composed of a panel 1, a frame 2, an unlocking device 3, guide blocks 4 and an unlocking steel rope 5. The panel 1 is welded on the frame 2; the unlocking device 3 is installed on the front end of the frame 2 through bolt connection; the two guide blocks 4 are respectively installed on the front and rear ends of the lower part of the frame 2 through bolt connection; the unlocking steel rope 5 passes through the frame 2, one end of which is connected with the unlocking device 3, and the other end of which is connected with the traction device of the air-drop system.

[0017] In combination Figure 2 The frame 2 is mainly composed of longitudinal beams 6, cross beams 7, small longitudinal beams 8 and small cross beams 9. The longitudinal beams 6 and the small longitudinal beams 8 are along the length direction of the main body of the cargo platform, and the cross beams 7 and the small cross beams 9 are along the width direction of the main body of the cargo platform. The longitudinal beams 6 and the cross beams 7 are both I-shaped steel, and are connected with each other through welding to form a rectangular frame. The small longitudinal beams 8 and the small cross beams 9 are both channel steel, and are welded in the frame grid of the rectangular frame, and are in contact with the panel 1 to increase the bearing strength of the panel 1.

[0018] In combination Figure 3 The unlocking device 3 is mainly composed of a No. 1 bracket 10, a No. 2 bracket 15, an unlocking lever 11, a blocking rod 16, a large lever ring 14, an unlocking spring 13, a small lever ring 12, a safety pin 17 and a steel rope adjuster 18. The No. 1 bracket 10 and the No. 2 bracket 15 are installed on the cross beam 7 at the front end of the frame 2; the unlocking lever 11 passes through the holes in the No. 1 bracket 10 and the No. 2 bracket 15; the small lever ring 12, the unlocking spring 13 and the large lever ring 14 are sequentially installed on the unlocking lever 11, the small lever ring 12 is fixed on the unlocking lever 11 through a bolt, and the large lever ring 14 is fixed on the unlocking lever 11 through a screw; the blocking rod 16 is installed on the end part of the unlocking lever 11 through a bolt; the steel rope adjuster 18 is used for adjusting the length of the unlocking steel rope 5; the safety pin 17 is inserted into the corresponding holes of the No. 2 bracket 15 and the unlocking lever 11 to play a safety role.

[0019] In combination Figure 4 The guide block 4 is mainly composed of an outer frame 19, a bushing 21, a clamping corner 22, a connecting rod 23 and a stud 20. The clamping corner 22 and the bushing 21 are threadedly connected through the stud 20, and then assembled on the outer frame 19 through the connecting rod 23, and the outer frame 19 is installed on the frame 2 through a bolt.

[0020] Working process description

[0021] The frame 2 and the panel 1 of the cargo platform body are used for placing air-dropped goods and equipment. The guide block 4 controls the cargo platform body to be loaded and unloaded along the central guide rail of the airplane, and prevents the cargo platform body from moving when a lateral or vertical load is applied. Before loading, the bushing 21 of the guide block 4 is rotated outward to the maximum angle, so that it is placed in the working position and locked. After loading, the locking is released, and the gap between the clamping angle 22 and the central guide rail is adjusted by rotating the stud 20. When the cargo platform body is unloaded, the cargo platform body is constrained by the guide block 4 and moves along the central guide rail. When the guide block 4 moves to the end of the central guide rail and is separated, the guide block 4 is rotated inward to the inside of the cargo platform body, so as to prevent damage during landing. The unlocking device 3 is used to ensure that the cargo platform body is separated from the airplane, and to control the action of the traction device, so that the traction parachute system is turned to start the main parachute system. One end of the unlocking steel rope 5 is connected with the unlocking lever 11 of the unlocking device 3, and the other end is connected with the traction device. When the cargo platform body is unloaded, the blocking lever 16 of the unlocking device 3 collides with the transfer pulley on the airplane, so that the blocking lever 16 is turned upward, thereby driving the unlocking lever 11 to rotate, and pulling the unlocking steel rope 5 to control the action of the traction device.

[0022] Through many experiments, the cargo platform panel and frame can carry air-dropped goods, the guide block can guide on the central guide rail of the airplane, and the unlocking device can smoothly unlock the traction device.

Claims

1. A cargo platform body for airdropping large-tonnage heavy equipment, characterized in that: The main body of the cargo platform is composed of steel profile beams and longitudinal beams. The four longitudinal beams serve as roller plates to support the cargo platform on the four load-bearing rollers of the aircraft. The front and rear ends of the cargo platform are respectively equipped with traction device and unlocking device mounting seats. The guide block (4) is installed in the recessed seats of the front and rear beams of the cargo platform to ensure that the cargo platform moves along the central guide rail. When the cargo platform leaves the aircraft, the stop bar of the unlocking device touches the extended roller on the edge of the tail ramp of the aircraft. The rocker arm of the unlocking device drives the traction device to move, realizing the traction system to turn and start the main parachute system.

2. The main body of the cargo platform for large-tonnage heavy-load airdrop according to claim 1, characterized in that: The panel (1) in the main body of the cargo platform is welded to the top of the frame (2); the unlocking device (3) is installed at the front end of the frame (2) by bolt connection; two guide blocks (4) are installed at the front and rear ends of the frame (2) respectively by bolt connection; the unlocking steel rope (5) passes through the frame (2), one end is connected to the unlocking device (3), and the other end is connected to the traction device of the airdrop system.

3. The main body of the cargo platform for airdropping large-tonnage heavy equipment according to claim 2, characterized in that: The frame (2) includes longitudinal beams (6), transverse beams (7), small longitudinal beams (8), and small transverse beams (9); the longitudinal beams (6) and small longitudinal beams (8) are along the length of the main body of the platform, and the transverse beams (7) and small transverse beams (9) are along the width of the main body of the platform; the longitudinal beams (6) and transverse beams (7) are both made of I-beams and are welded together to form a rectangular frame; the small longitudinal beams (8) and small transverse beams (9) are both made of channel steel and are welded inside the rectangular frame and in contact with the panel (1).

4. The main body of the cargo platform for large-tonnage heavy-load airdrop according to claim 2, characterized in that: The unlocking device (3) includes bracket 1 (10), bracket 2 (15), unlocking lever (11), stop bar (16), large lever ring (14), unlocking spring (13), small lever ring (12), safety pin (17), and steel rope adjuster (18); bracket 1 (10) and bracket 2 (15) are installed on the crossbeam (7) at the front end of the frame (2), and the unlocking lever (11) passes through the holes on bracket 1 (10) and bracket 2 (15); small lever ring (12) The unlocking spring (13) and the large lever ring (14) are installed on the unlocking lever (11) in sequence. The small lever ring (12) is fixed on the unlocking lever (11) by bolts, and the large lever ring (14) is fixed on the unlocking lever (11) by screws. The stop bar (16) is installed on the end of the unlocking lever (11) by bolts. The steel rope adjuster (18) is used to adjust the length of the unlocking steel rope (5). The safety pin (17) is inserted into the corresponding hole of the bracket (15) and the unlocking lever (11).

5. The main body of the cargo platform for airdropping large-tonnage heavy equipment according to claim 2, characterized in that: The guide block (4) includes an outer frame (19), a bushing (21), a retaining angle (22), a connecting rod (23), and a stud (20). The retaining angle (22) and the bushing (21) are connected by a threaded connection through the stud (20), and then assembled onto the outer frame (19) through the connecting rod (23). The outer frame (19) is installed onto the frame (2) by bolts.

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