Aim To study the influence of the acceleration and the joggling factor between the pallet and the escape wheels on the timing characteristics of the clock mechanisms with unturned escapement.
目的 研究起动加速度a0 和卡摆与擒纵轮间的啮合传动常数p 对钟表机构走时特性的影响; 方法 把数学模型和动力学仿真软件相结合,模拟真实条件,研究无返回力矩钟表机构的延时特性;结果 p 和a0 的大小对钟表机构延时特性存在决定性的影响;结论 p 和a0 的合理取值可以大大提高钟表机构延时设计的效率
It puts forward a kind of new design plan of clockwork arming device.
本文针对导弹主动段内出现的大机动过载环境条件,就如何避免法向过载带来的负面影响,从而使得引信安全系统可靠作用的技术进行了初步的分析和研究,提出了一种新的钟表保险机构设计方案,并利用虚拟样机技术进行了实体造型及动力学仿真分析,证明了设计的合理性、可行性。
Study on Virtual Prototyping of Fuze S & A Mechanism (Involute Gear Train and Straight-Sided Verge Runaway Escapement);
引信无返回力矩钟表机构虚拟样机技术研究
The Study on the Vibration Cycle of a Pin Runaway Escapement
销钉式无返回力矩钟表机构振动周期的研究
Characteristic Research on Runaway Escapement Driven by Two Slide-blocks
双滑块驱动无返回力矩钟表机构特性研究
Simulation Analysis of MEMS-Based Inertial Delay Pendulum Mechanism
基于MEMS的钟表惯性延时机构仿真分析
dial ,clock or watch (incl. for clocks with watch movements)
钟表(包括装有表机芯的钟)表盘
hand ,clock or watch (incl. for clocks with watch movements)
钟表(包括装有表机芯的钟)的指针
pivoted detent escapement
枢轴式天文钟擒纵机构
bascule escapement
锁轴式天文钟擒纵机构
spring detent escapement
锁簧式天文钟擒纵机构
Research on the Mechanism of Diapause Bio-clock Protein Based on Structure and Expression of Gene ea4 in Silkworm, Bombyx Mori;
基于ea4基因结构和表达的家蚕滞育生物钟蛋白质作用机理研究
Parts& Machinery: Different kinds of parts and machinery, including Watch& Clock Movements, Watch Cases, and related machinery, etc.
★钟表配件及机器:各种配件及机械,包括钟表机芯,表壳及有关机械等。
clock or watch dial-printing machine
钟表或手表刻度盘印刷机
The final stage of development was reached with the independent mechanical clockwork of Kuo Shou-ching in the Yuan Dynasty and that of Chan Hsi-yuan with hand and dial in the first years of the Ming Dynasty.
元代郭守敬以后,到明初的詹希元, 更发展到独立时钟机构,并有了指针和表盘。
cock, watch (incl. for clocks with watch movements)
表(包括装机芯的钟)的中间轮
clock ,novelty (excl. those with watch movements), non-electric
小型钟(不包括装有表机芯者),非电动
clock, with watch movements, battery or accumulator powered
装有表机芯的钟,由电池或蓄电池驱动
precision engineering techniques and horology
精密机械技术和钟表制造术