Automatically-reelable extension rod

本发明涉及探测采样设备，具体地说是一种可自动盘卷的伸长杆，适用于深井探测以及空间探测与采样，可自动盘卷的伸长杆包括多个结构相同的盘卷筒，各盘卷筒依次铰接；所述盘卷筒一端的两侧分别设有插拔销及连接块，盘卷筒另一端的一侧与相邻盘卷筒上的连接块铰接，盘卷筒另一端的另一侧安装有滑块基座，所述滑块基座内容置有沿径向往复移动的滑块；所述伸长杆处于伸直状态时，盘卷筒上的插拔销插入相邻盘卷筒上的滑块基座内，并与所述滑块抵接。本发明结构简单、紧凑，易于安装，可靠实用，通过连接销可以使盘卷筒围绕着一个圆周盘卷，体积小，不占用较多空间；伸直时，插拔销与滑块抵接，能够满足强度和刚度的要求

A Brief Survey on Inflatable Deployment Space Structures research and development

Deployable structures are widely used in a variety of space spacecrafts and planetary detectors. Under the size and cost limitations of space transportation system, deployable structure usually requires large contraction ratio and high reliability, therefore, development of deployable structures faces a series of theoretical and technical challenges. Space inflatable structure is a key area in space mechanism’s research. Compared to mechanically deployable structures, space inflatable structures have several unique advantages such as much lighter weight, higher packaging efficiency, lower life-cycle costs, simpler design with fewer parts, and higher deployment reliability. Inflatable structures with its irreplaceable advantages had attracted a lot of attentions during the past decades. This paper presents of a brief review of inflatable deployment space structures with stresses on their recent development and applications

Three-axle turntable capable of moving in all directions

本发明涉及移动测试转台，具体地说是一种可全方位移动的三轴转台，包括彼此转动连接的转台及移动平台，转台包括转杆、中环及外环，移动平台包括底座、支杆及万向轮，外环转动安装在底座上，底座上沿周向均布有多个支杆，每个支杆均连接有万向轮，通过万向轮实现水平方向前后、左右两个平移自由度；中环转动安装在外环内，转杆作为被测对象的载体转动安装在中环内，通过转杆相对于中环转动、中环相对于外环转动及外环相对底座转动实现三个旋转自由度。本发明不需要驱动元件，结构简便实用，共拥有五个自由度，可以根据测试情况选择；根据需要还可以更换底部万向轮，使转台使用更方便

Spring damping vibration absorber

本发明属于减振器领域，具体地说是一种弹簧阻尼减振器，包括两个端部带有法兰连接的十字轴万向节，两个套在一起只有轴向运动的套筒，在套筒的内部空间中固定一根两端为锥型的圆柱弹簧，在弹簧的内部设有导向装置，在导向装置上装有压紧套筒和阻尼，通过压紧套筒的旋入和旋出可以调节阻尼与导向装置间的压力从而调节阻尼的大小，且大套筒的另一端由螺纹连接了内有双列角接触轴承的调距套筒。本发明不需要液压油，结构紧凑，拥有六个自由度，阻尼可以根据实际情况调节，安装时整体高度可调，使减振器有较优性能

Development of Lepidoptera Wings of Bombyx mori L． and Its Value on Bionics

以家蚕(Bombyx mori L.)为研究对象,定期解剖蚕蛹并对30个不同个体鳞翅各特征参数进行显微测量,结果显示家蚕蛹内发育期为12 15 d,分为4个阶段,各阶段翅呈现出不同发育特征。其中前翅呈三角形,周长平均值为22.243 mm;面积平均值为28.305 mm2,主翅脉共9条,长度在3 8 mm之间。后翅为扇形,周长均值为16.571mm,面积均值为19.936 mm2,主翅脉长度在2 6 mm之间。蛹内时期与羽化展开后的鳞翅在周长与面积上均存在较大变化,其中前翅羽化后周长为蛹期1.9倍,面积为3.1倍;后翅羽化后周长为蛹期2.1倍,面积为3.8倍。家蚕鳞翅通过羽化获得了更大比表面积..

Bio-inspired design of an inflatable deployable structure

The biomimetic principle applied in the deployable structure design process has important significances in engineering reality. Principle in nature provides numerous design solutions for innovative deployable structures. Meanwhile, it has initiated a new area for biomimetic research. In this paper, the mechanism of butterfly eclosion deploy process is introduced. According to the butterfly wings eclosion development process, a type of deployable structure is proposed. Optimization design is put forward according to problem which is finding on the early-developed prototype. The optimized results prompt a new deployable structure with much better mechanical characteristics and structural performance. And then, an inflatable deployable structure prototype is developed. Finally, experiment successfully demonstrates the bio-inspired principle of above proposed inflatable deployable structure