Clock types
Clocks and watches are widely used in a wide range of varieties according to the vibration principle, structure and use characteristics of the classification according to the vibration principle of the use of lower frequency mechanical vibration clock pendulum clock, pendulum clock, etc.; The use of high frequency electromagnetic oscillation and quartz oscillation clock synchronization clock, quartz clock; According to the structure characteristics of mechanical mechanical alarm clock, automatic, calendar, double calendar, spring and other mechanical watches; Electromechanical electric pendulum clock, electric balance wheel clock, etc.; Electronic balance wheel electronic clock, tuning fork electronic clock, pointer type and digital display quartz electronic clock, etc
Mechanical clocks and watches have a variety of structural forms, its working principle is basically the same by the original motion system, transmission system, escapement governor, pointer and dial needle system and other parts
Mechanical clocks and watches using spring as the power of the primary drive system through a group of gear transmission system to promote the escapement governor work; Then the escapement governor in turn to control the transmission speed; The drive system drives the escapement governor and drives the pointer mechanism at the same time the drive system speed is controlled by the escapement governor pointer can indicate the time on the regular dial; The upper dial needle is fastened or the pointer is moved
In addition, there are also some additional mechanisms to increase the clock function of automatic loading mechanism, calendar (double calendar) mechanism, alarm device, lunar indication and measurement period mechanism
