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Landing mechanism-based legged mechanical cushioning device

A buffer and leg-type technology is applied in the field of buffer machinery to achieve the effects of improving the ability to resist large impact loads, reducing costs and increasing adaptability

Active Publication Date: 2012-08-22
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

An expansion ring is embedded in the lower cavity of the buffer chamber shell

Method used

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  • Landing mechanism-based legged mechanical cushioning device
  • Landing mechanism-based legged mechanical cushioning device
  • Landing mechanism-based legged mechanical cushioning device

Examples

Experimental program
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Embodiment Construction

[0039] See figure 1 , The present invention is a leg-type mechanical buffer based on a landing mechanism, which is composed of an upper end cover 1, a DC screw motor 3, a disc spring 2, a damping baffle 7, a force sensor 15, an expansion ring 14, and a piston push rod 8. , Cone ring push rod 11, buffer cavity shell 4, motor screw guide ring 5, foam metal filling block A6, foam metal filling block B13, foam metal filling block C16, flexible porous material 12, bottom end cover 9, compression spring 10 Composition; the positional connection relationship between them is: the upper end cover 1 and the buffer chamber shell 4 are coaxially welded together, and the bottom end cover 9 is coaxially connected with the buffer chamber shell 4 by screws to form the buffer outer shell. An expansion ring 14 is embedded in the lower cavity of the buffer cavity shell 4. The expansion ring 14 and the buffer cavity shell 4 are filled with a foamed metal filler block B13. An upward blind hole is o...

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PUM

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Abstract

A landing mechanism-based legged mechanical cushioning device comprises an upper end cover, a direct current lead screw motor, a disc spring, a damping baffle, a force sensor, an expansion ring, a piston push rod, a conical ring push rod, a cushioning cavity housing, a motor lead screw guide ring, a foam metal filling block filler, a flexible porous material, a bottom end cover and a pressure spring; and has two-stage cushioning energy absorption structures. The first stage is a mechanical cushioning structure designed on the basis of thin-wall metal pipe plastic deformation cushioning, and foam metal and flexible porous material plastic deformation energy absorption; and the second stage is an autonomous cushioning energy absorption structure designed on the basis of servo motor feedback control, foam metal plastic deformation energy absorption and elastic element energy storage and release. The inventive cushioning device is a composite cushioning device with simple structure, obvious energy absorption effects and stable performance.

Description

Technical field: [0001] The invention relates to a leg-type mechanical buffer based on a landing mechanism, which can be applied to aerospace and other occasions where buffer structures and technologies need to be utilized, and belongs to the technical field of buffer machinery. technical background: [0002] Legged mechanical buffers are a widely used buffering method in the aerospace field. It mainly draws on the advanced landing buffer technology of aircraft landing gear, and uses springs, leaf springs or hydraulic shock absorbers to dissipate impact energy. [0003] Most of the current mechanical cushioning structures are single recoil type or low-complex cushioning structures, because the single type structure is relatively simple, but its cushioning performance is worse than that of the composite type cushioning. Some single methods are greatly affected by the environment, thus affecting the stability of the cushioning performance. However, the high technical design requirem...

Claims

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Application Information

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IPC IPC(8): F16F7/00
Inventor 王晓慧万长煌李彬山美娟高行素
Owner BEIHANG UNIV
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