GrabCAD 模型信息
Classic Escapement - Swiss Lever · 模型 276996
Based on the book CLOCK AND WATCH ESCAPEMENT MECHANICS by Mark V. Headrick (Copyright 1997) as a fine source, I try to present rigorously the essence of escapement design. The book is public (http://www.nawcc-index.net/Articles/Headrick-EscMechanics.pdf), so you can read and compare (with the book) everything I present here. My intention was to create a series of projects dedicated to this subject - as you will see - but only concerning the geometrical aspects. Actually, you can use my projects as accurate simulations for understanding the book. I recommend you to download the book in order to use it when your computer is offline. As you can learn from the book, there are three classical kinds of escapement mechanisms: Graham (dead-beat), Recoil and the Swiss Lever. Here is presented the last one. There are two different words in English as names for the mechanical device used for counting the time: clock and watch. In Romanian, for instance, there is only one word for both: the Romanian word is „ceas” (read as „charts” without „rt”). A watch is not a clock, like a pendulum clock hanging on the wall; a wristwatch is a good example from the family of watches. The Swiss Lever is used as an escapement for watches. The construction of the Swiss Lever Escapement is presented in the book from page 44. It commences with the Wheel, then the Swiss Lever. If you follow the book till the end you will obtain what I already modeled. All parts, assemblies, and simulation/animation are made with Inventor 2014. The main parts are the Wheel and the Swiss Lever which incorporates the so-called „Stones” presented in red. Next is the Balance Wheel Disc incorporating the red Impulse Pin. All of them are placed on a Plate. There you can find also the Banking Pins which limit the movement of the Swiss Lever. Watching the Video, you can see the start of a movement: note that the Wheel is the engine that makes the Swiss Lever move. Then, you will see how the Swiss Lever collides with the Impulse Pin and feeds the Balance Wheel with energy at every single oscillation. The role of the Balance Wheel is obvious: to conserve energy for coming back and making the Swiss Lever allow the rotation of the Wheel with another step. Because the classic spiral spring attached to the Balanced Wheel can not be simulated with Dynamic Simulation in Inventor, I simulated the spiral spring action by using a helicoidal spring and a subtle construction. You can see it on the back of Pla...
- 格式
- Rendering、Autodesk Inventor、STEP / IGES
- 分类
- Educational、Hobby、Machine design
- 标签
- watch_escapement、machine_design、autodesk_inventor、dynamic_simulation、machine-design
- 数据更新
- 2026-11-06T09:38:01Z