Cushioned landing legs of a reusable vehicle and method of cushioning the same

A buffer method and carrier technology, applied in aircraft landers, springs/shock absorbers, extraterrestrial vehicles, etc., can solve the problem that the metal deformation buffer method cannot meet the requirements of repeated use, the technology is not mature enough, and the carrier rebounds, etc. problem, to achieve the effect of low overload, space reduction, and stable buffer performance

Active Publication Date: 2016-01-20
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The metal deformation buffer method cannot meet the requirements of repeated use
The magnetorheological fluid buffering method is still in the development stage in the aerospace field, and the technology is not mature enough
The solid spring buffer method will make the mechanism heavy and easily cause the carrier to rebound

Method used

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  • Cushioned landing legs of a reusable vehicle and method of cushioning the same
  • Cushioned landing legs of a reusable vehicle and method of cushioning the same
  • Cushioned landing legs of a reusable vehicle and method of cushioning the same

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Embodiment Construction

[0016] Such as figure 1 As shown, the present invention can reuse the carrier landing buffer leg, including the inner lining tube 3, the outer sleeve 5, the concave tube 7, the piston tube 12 and the foot pad 14. The fastening device 6 fixedly connected, the top end of the inner liner 3 is provided with a rotating motor 1, the output shaft 2 of the rotating motor 1 is fixedly connected with the inner liner 3, in addition, the inner liner 3 is fixedly connected with the push rod 4, The lining cylinder 3 is arranged with inner wall threads 15, which cooperate with the outer wall threads 16 on the upper end of the concave cylinder 7. When the inner lining cylinder 3 rotates, it is fixed by the end cover 9 in the axial direction, so that the concave cylinder 7 can move up and down. There is a floating piston 8 inside the barrel 7; a gasket 10 is arranged inside the piston barrel 12, and the lower end of the gasket 10 has a honeycomb cushioning material 11 for crushing when landing...

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Abstract

The invention relates to a buffering landing leg of a reusable launch vehicle and a buffering method of the buffering landing leg, and belongs to the technical field of landing legs. The buffering landing leg comprises an outer sleeve (5), an inner lining cylinder (3), a concave type cylinder (7), a rotating motor (1), a pushing rod (4), a floating piston (8), a piston cylinder (12), a gasket (10), a honeycomb-like buffering material (11), a spherical hinge (13), a foot pad (14) and an end cover (9). The buffering landing leg is characterized by combining three buffering modes which are the oil buffering mode, the damping rubber buffering mode and the honeycomb-like buffering mode, and multi-level buffering can be conducted. The buffering landing leg can adapt to different initial landing situations and can be retracted and released automatically, and manual ground operation is not needed.

Description

technical field [0001] The invention belongs to a reusable cushioning landing leg cushioning method for a reusable carrier and belongs to the technical field of landing legs. Background technique [0002] The reusable vehicle is a very novel vehicle, and its purpose is that after each launch and landing, it can be launched again soon after simple maintenance and replenishment of propellant, and can be reused many times. It is successfully developed and put into use, which can greatly simplify ground operations and equipment, reduce ground operation costs, increase launch frequency, and at the same time reduce air pollution and space junk. It is the development direction of future vehicles. McDonnell Douglas began research on reusable vehicles in 1991, and conducted related launch tests. As a key component to achieve reusability, the cushioned landing legs provide support for the vehicle to land stably on the surface, and can be automatically or manually stowed for reuse bef...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64D45/04B64G1/16F16F15/023
Inventor 聂宏岳帅张明蒋锐吴晓宇张钦
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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