A tourbillon mechanical wristwatch with simultaneous rotation and revolution

Abstract

The present invention discloses a tourbillon mechanical wristwatch with simultaneous rotation and revolution. A spring system connects with prime mover system and display system in series; teasing needle system connects with display system; display system connects with motion-work wheel system, epicyclic gear train system, ball bearing, motion-work wheel system and rotating escapement controlling mechanism in series double-way; lower back-up plate of ball bearing fixed with main plate through screws as a whole; upper back-up plate of ball bearing fixed with slewing table through screws as a whole. The beneficial effects are as follows: cylinder roller structure bearing adopted in the invention can drive relative large load in low speed; roller bearing as a template whole disassembly and easy maintenance; meanwhile the spring system and teasing needle system mounted under the slewing table and not involve in slewing table rotary movement; motion-work wheel system and rotating escapement control(ling) mechanism mounted above the slewing table and rotates together with the slewing table; cannon pinion executes concentric friction coordination with the first dead pulley; teasing needle hour-minute wheel divorced from the dead pulley; load driven by teasing needle system is light, and all that satisfies requirement of trackway tourbillon cassette mechanism.

Description

technical field [0001] The invention relates to a mechanical watch with a tourbillon, in particular to a mechanical watch with a tourbillon that rotates and revolves. Background technique [0002] The so-called tourbillon in mechanical watches is a device that reduces isochronous errors. The feature of this device is that the balance spring system and escapement mechanism are placed in the frame, which can rotate with the frame while running on its own. It minimizes the position error of the clock caused by the gravity of the earth and thus improves the accuracy of travel time. Among them, the device that coincides the axis of the balance wheel hairspring system with the rotation axis of the frame (refer to the patent "Coaxial Rotary Escapement Speed ​​Regulation Mechanism for Watches" - Patent No.: LZ200720096902.5) is called "coaxial tourbillon"; The device usually called "Carrousel" (refer to EP Patent Publication No. 846987) whose axes do not coincide are called "eccent...

AI Technical Summary

Problems solved by technology

The disadvantage of ball bearings is that the adjacent rolling elements will be in direct contact, and the relative friction speed is twice the surface speed, the heat generation and wear are relatively large, and pitting corrosion, plastic deformation, abrasive wear, adhesive wear and other failures The method will affect its service life, so it will consume part of the winding torque, shorten the travel time of the watch, and reduce the travel time accuracy

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