The invention discloses a flexible attachment buffer device based on mechanical spring diameter expansion-honeycomb aluminum, belongs to the technical field of deep space exploration soft landing, and can solve the problem that an existing detector cannot achieve rapid landing and does not rebound. The landing leg comprises three buffering landing legs, each buffering landing leg comprises a first-stage buffering mechanism and a second-stage buffering mechanism, the first-stage buffering mechanisms achieve the effects of absorbing loads and buffering the landing legs according to the mechanical spring diameter expanding principle, and the buffering process is relatively smooth due to the gradient change of the spring rigidity. The first-stage buffering structure is provided with a non-return mechanism, and the springback vibration phenomenon possibly caused by the axial distance between the springs in the buffering process is prevented. And the secondary buffer mechanism belongs to backup buffer, if the main cabin body is out of control and overspeeds, the kinetic energy of the buffer rod is absorbed through the crushing plastic deformation of the secondary buffer mechanism after the primary buffer mechanism is broken through, so that the buffer protection effect is achieved, and the lander is prevented from being damaged. The device is used for absorbing and buffering the load of the detector in the process of landing on the asteroid surface.
一种基于机械式弹簧扩径‑蜂窝铝的柔性附着缓冲装置,属于深空探测软着陆技术领域,可解决现有探测器无法实现快速着陆且不反弹的问题。本发明包括三条缓冲着陆腿,缓冲着陆腿包括一级缓冲机构和二级缓冲机构,一级缓冲机构利用机械式弹簧扩径原理实现吸收载荷和对着陆腿起缓冲的作用,并且弹簧刚度的梯度变化使得缓冲过程相对平滑。一级缓冲结构配有止回机构,防止缓冲过程中由于弹簧间轴向距离可能导致的回弹振动现象。二级缓冲机构属于备份缓冲,若主舱体失控超速,在突破一级缓冲机构后通过二级缓冲机构的压溃塑性变形来吸收缓冲杆的动能起到缓冲保护作用,保障着陆器不被破坏。本发明用于探测器在小行星表面着陆过程中载荷的吸收和缓冲作用。
Flexible attachment buffer device based on mechanical spring expanding-aluminum honeycomb
一种基于机械式弹簧扩径-蜂窝铝的柔性附着缓冲装置
2022-09-23
Patent
Electronic Resource
Chinese
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