20 years ago, I've seen this movement. What I remember the time clock from the Shanghai Institute of arrested people had been to Malaysia, to visit the Swiss watch my latest prototype unit, carefully read the ETA2892 watch movement, the work was led Chen said one sentence: "It's really clever design ah, "I was impressed. The first is characterized by thin ETA2892 movement, it automatically plywood and plywood of the same height, rather than the other watch movement, automatic plywood is mounted on the wheel at the top of the plywood. Therefore, only 3.6mm thick ETA2892 movement, and even the hands than the average non-automatic movement watch strings even thinner.
Where the automatic bi-directional winding watch, the winding in the form of basically two kinds: one, using automatic reversing wheel 2, with the eccentric swing ratchet pawl; one of the most common first approach. Principle of self-winding watch is actually an eccentric use of the hammer (automatic Tuo), watch it swing in the rotation can drive a set of gears and winding to winding. Bi-directional automatic winding watches must be fitted with guide wheels, so that the swing can be automatically Tuo winding to winding.
Automatic guide wheel (the "pulley) is generally an automatic watch has two institutions, are called" guide wheel 1 "and" guide wheel 2. "They engage with each other, and have the same upper and lower teeth round tablets, in between each round of each of two pieces, "jin" It was because of "extremely heavy" role was to guide the non-return-oriented features with the wheel. also useful round roll film, called "Beyond the clutch." Automatic winding form.
And compared to common ETA 2824 movement, ETA2892 automatic movement more complex structure is necessary, due to movement of different splint designs, sizes and number of rounds are not the same, ETA 2824 movement only "guide wheel 1" , "guide wheel 2", automatic off wheel, automatic winding wheels, four wheels; ETA2892 movement, although the two guide rollers into one, but it's automatic gear wheel is still the number to six, mainly Introduction wheel drive it more (see photo), including its plywood on the winding portion of the wheel, there are several lined up, just like the solar system's planets in general.
ETA2892 automatic system structure and working principle:
A, automatic gear shaft Tuo
E, Tuo-mediated auto wheel, while meshing of its toothed guide wheel shaft (H) and reverse wheel (F), the lower round tablets
H, guide wheels, which are of two round pieces, and a gear shaft, each wheel has a chip, "jin", the upper and lower pieces are in the reverse rotation of the wheel when they are that was only driven gear shaft; clockwise rotation wheel just an empty piece rotation, gear shaft is not driven.
I, auto-off wheel
K, self-winding wheel
When the auto-rotate when Tuo, Tuo-axis in the tooth (A) of the engagement, the round-mediated auto-Tuo (E) along the rotation, its axis of meshing driven gear wheel (H) of the lower rounds of film, guide rollers (H) piece against the lower wheel spin and drive its own axis gear rotation, auto-off wheel drive (I) and self-winding wheel (K).
When the auto-rotate clockwise when Tuo, Tuo-axis in the tooth (A) of the engagement, the round-mediated auto-Tuo (E) reverse rotation. It's gear shaft meshing guide rollers (H) of the lower round piece clockwise spin, while the reverse gear wheel (F) along the spin, reverse round piece with the upper wheel guide rollers (H) of the film engage the upper wheel, so the guide wheel (H) of the film against the rotating wheel and the upper drive shaft teeth of its own rotation, auto-off wheel drive (I) and self-winding wheel (K).
This view, so watch design is really clever and incredible precision, automatic winding is a typical example. In order to completely understand the structure and understand all watch a variety of complex functions, I think should be the first self-winding structure and principles from the start, expensive watches and complexity of so many people stay away. I have seen a lot of lines in the people, including engaging in a lifetime watch repair shop, have turned a blind eye to it, do not want to explore what happens, do not want to know how it achieve automated bi-directional winding, long-term satisfied to just do the disassembly and wash oil but it seems the lack of "exploration and discovery" of consciousness. There is an old saying in the past, called "a gentleman rather than hands," but now some people are not mindless special hands. In fact, watchmaker, when the industrial revolution in Europe that is synonymous with engineers, inventors are many large watches apprentice background, including Watt (which invented the steam engine), because the watch covers all mechanical principles and process, and leverage, springs, gears, cams, and so is the foundation of all mechanical devices.
Some people say ETA2892 watch self-winding movement is inefficient, and even that its diameter is too large automatic Tuo teeth, as if some sense. I often give this movement watch repair, as long as lack of exercise, it is prone to stop and go or not go at length the phenomenon. In fact, it's automatically Tuo ball bearings in severe shock and vibration under the more easily deformed, which will affect the smooth rotation automatically Tuo.
Where the automatic bi-directional winding watch, the winding in the form of basically two kinds: one, using automatic reversing wheel 2, with the eccentric swing ratchet pawl; one of the most common first approach. Principle of self-winding watch is actually an eccentric use of the hammer (automatic Tuo), watch it swing in the rotation can drive a set of gears and winding to winding. Bi-directional automatic winding watches must be fitted with guide wheels, so that the swing can be automatically Tuo winding to winding.
Automatic guide wheel (the "pulley) is generally an automatic watch has two institutions, are called" guide wheel 1 "and" guide wheel 2. "They engage with each other, and have the same upper and lower teeth round tablets, in between each round of each of two pieces, "jin" It was because of "extremely heavy" role was to guide the non-return-oriented features with the wheel. also useful round roll film, called "Beyond the clutch." Automatic winding form.
And compared to common ETA 2824 movement, ETA2892 automatic movement more complex structure is necessary, due to movement of different splint designs, sizes and number of rounds are not the same, ETA 2824 movement only "guide wheel 1" , "guide wheel 2", automatic off wheel, automatic winding wheels, four wheels; ETA2892 movement, although the two guide rollers into one, but it's automatic gear wheel is still the number to six, mainly Introduction wheel drive it more (see photo), including its plywood on the winding portion of the wheel, there are several lined up, just like the solar system's planets in general.
ETA2892 automatic system structure and working principle:
A, automatic gear shaft Tuo
E, Tuo-mediated auto wheel, while meshing of its toothed guide wheel shaft (H) and reverse wheel (F), the lower round tablets
H, guide wheels, which are of two round pieces, and a gear shaft, each wheel has a chip, "jin", the upper and lower pieces are in the reverse rotation of the wheel when they are that was only driven gear shaft; clockwise rotation wheel just an empty piece rotation, gear shaft is not driven.
I, auto-off wheel
K, self-winding wheel
When the auto-rotate when Tuo, Tuo-axis in the tooth (A) of the engagement, the round-mediated auto-Tuo (E) along the rotation, its axis of meshing driven gear wheel (H) of the lower rounds of film, guide rollers (H) piece against the lower wheel spin and drive its own axis gear rotation, auto-off wheel drive (I) and self-winding wheel (K).
When the auto-rotate clockwise when Tuo, Tuo-axis in the tooth (A) of the engagement, the round-mediated auto-Tuo (E) reverse rotation. It's gear shaft meshing guide rollers (H) of the lower round piece clockwise spin, while the reverse gear wheel (F) along the spin, reverse round piece with the upper wheel guide rollers (H) of the film engage the upper wheel, so the guide wheel (H) of the film against the rotating wheel and the upper drive shaft teeth of its own rotation, auto-off wheel drive (I) and self-winding wheel (K).
This view, so watch design is really clever and incredible precision, automatic winding is a typical example. In order to completely understand the structure and understand all watch a variety of complex functions, I think should be the first self-winding structure and principles from the start, expensive watches and complexity of so many people stay away. I have seen a lot of lines in the people, including engaging in a lifetime watch repair shop, have turned a blind eye to it, do not want to explore what happens, do not want to know how it achieve automated bi-directional winding, long-term satisfied to just do the disassembly and wash oil but it seems the lack of "exploration and discovery" of consciousness. There is an old saying in the past, called "a gentleman rather than hands," but now some people are not mindless special hands. In fact, watchmaker, when the industrial revolution in Europe that is synonymous with engineers, inventors are many large watches apprentice background, including Watt (which invented the steam engine), because the watch covers all mechanical principles and process, and leverage, springs, gears, cams, and so is the foundation of all mechanical devices.
Some people say ETA2892 watch self-winding movement is inefficient, and even that its diameter is too large automatic Tuo teeth, as if some sense. I often give this movement watch repair, as long as lack of exercise, it is prone to stop and go or not go at length the phenomenon. In fact, it's automatically Tuo ball bearings in severe shock and vibration under the more easily deformed, which will affect the smooth rotation automatically Tuo.
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