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Drag parachute throwing-releasing mechanism with automatic parachute throwing function after failure

A drag parachute and post-failure technology, applied in the direction of parachutes, aircraft parts, aircraft accessories, etc., can solve the problems of increasing the space weight and system complexity of the drag parachute system, loss of aircraft platform performance, loss of aircraft platform safety, etc., to achieve security The effect of flight safety

Active Publication Date: 2018-07-03
CHENGDU AIRCRAFT DESIGN INST OF AVIATION IND CORP OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two methods either lose the safety of the aircraft platform, or greatly increase the space occupied by the drag parachute system, the weight and the complexity of the system, and lose the performance of the aircraft platform.

Method used

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  • Drag parachute throwing-releasing mechanism with automatic parachute throwing function after failure
  • Drag parachute throwing-releasing mechanism with automatic parachute throwing function after failure
  • Drag parachute throwing-releasing mechanism with automatic parachute throwing function after failure

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Experimental program
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Effect test

Embodiment Construction

[0018] The working process of the drag parachute throwing parachute device is as follows:

[0019] During normal operation, the two electric detonators 2 are energized first, and the electric detonators 2 work and ignite the 2×4 non-electric detonation transmission components 4, and the detonation transmission components 4 transmit the detonation waves to the three explosive bolts 1 and the pusher 3 , Explosive bolt 1 and pusher 3 work synchronously or work successively by procedural control by delay drug (the pusher works first after the explosion bolt), and pusher 3 pushes pusher 521 into the false lock bolt 501, so that the false lock device is controlled by "false" The state of "lock" turns into the state of "true lock", and at this time, the false lock device can bear the normal aerodynamic resistance load of the drag parachute. The three explosive bolts work to throw out the back cover of the drag parachute cabin and release the drag parachute. The drag parachute transmi...

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Abstract

The invention belongs to an aircraft drag parachute system, and particularly discloses a drag parachute throwing-releasing mechanism with an automatic parachute throwing function after failure. The drag parachute throwing-releasing mechanism is composed of explosive bolts, electric exploders, a pin pushing machine, a non-electric-detonation assembly and a false lock device. The explosive bolts areconnected with an airframe mechanism and a drag parachute cabin rear cover, the false lock device is connected with an airframe support and a drag parachute hanging ring, and the pin pushing end of the pin pushing machine is connected with the false lock device through a thread. The output end of the non-electric-detonation assembly is connected with the explosive bolts and the other end of the pin pushing machine, and the input end of the non-electric-detonation assembly is connected with the electric exploders. One parallel ignition circuit is only needed to add in a traditional non-electric-detonation system, and the ''failure-safety'' function can be realized; and a drag parachute cabin sensor and a related logic judgment system are not needed to be added, the system logic is simple,all functions can be realized only by an initiating explosive device system, and the structure space and weight of the sensor and cable installation thereof are saved.

Description

technical field [0001] The invention belongs to an aircraft drag parachute system, in particular to a drag parachute throwing mechanism with the function of automatically throwing parachute after a fault. Background technique [0002] The drag parachute throwing device on the existing aerospace vehicle either does not have the parachute throwing function after the parachute is misplaced, or adds a hatch position sensor and a corresponding electrical system in order to realize the parachute throwing function. These two methods either lose the safety of the aircraft platform, or greatly increase the space taken by the drag parachute system, the weight and the complexity of the system, and lose the performance of the aircraft platform. Contents of the invention [0003] The structure of the invention is simple and reliable, and is suitable for the drag parachute system which is not frequently used and has high requirements on space, weight and reliability. [0004] A drag pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D17/80B64C1/14
CPCB64C1/14B64D17/80
Inventor 黄方略谷云峰单忠茂马天力樊健平
Owner CHENGDU AIRCRAFT DESIGN INST OF AVIATION IND CORP OF CHINA
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