The alarm clock is a clock with a time to make trouble.It can not only indicate time, but also send audio signals or other signals at the time of people.The movement of the alarm clock is mainly mechanical and quartz electronics.Other types such as transistors swimming, sound fork -type, etc. are rarely used, and they are usually used on the tabletop alarm clock.Today I will tell you some components and working principles of the alarm clock.
How to choose an alarm clock
1. Check the appearance first
The color of the bell shell is bright and uniform, without paint, discoloration and rubbing marks.The clock surface should be cleaned, the scale is uniform, and the handwriting should be clear.
2. Check the sensitivity
To start a clockwork slightly, the second hand began to move, proving that the sensitivity was high.The bell with high sensitivity continues the time for a long time.
3. Check the sound of the time
Place the bell on the left and right up and down. If the sound is consistent in all directions in all directions, the sound is consistent and uniform without noise, it means that the go is normal.
4. Check if you touch your needle
Dipping the time and tunnels, the time, the minute hand and the second needle coincide with the second needle (overlap in three needles). A certain gap should be maintained between the three needles and should not be rubbed.At the same time, there should be a proper gap between needles and clock noodles and glass.
5. Check the trouble
Dial the noodles to 3, 6, 9, and 12 respectively, and then dial the clockwise to these places. If the errors of the noise are within 5 minutes, the difference is normal.
6. Check the sound of the alarm
The sound of the alarm should be clear, bright, no dumb, no sound.
7. Check the tightness of the needle spoon and the spoon
The tightness should be moderate.If the spoon pine is pine, it means that there is insufficient elasticity of the upper rotation of the center wheel, which will cause a slow phenomenon of seconds and slowness.If the spoon is pine, the downtown will rotate with the time.But if it is too tight, it is not convenient to use.
What components are inside the alarm clock
1.
It is composed of a hammer, swing rod, hanging device and cycle adjustment device.Used in a fixed clock.After the hammer is dereated from the lead vertical line (balanced position) at any angle under the action of external forces, under the action of gravity, the hammer will be moved around the campaign.The vibration process is a process of switching energy and bit energy.
2. Twisted
It is mainly composed of panels and hanging wires.The lower end of the hanging wire is fixed, and the upper end is fixed on an unmoved fulcrum.The section of the hanging wire can be rectangular or round.Twisting and retreating agency or fork tile escaped agency constitutes the escapement speed system.The twisting has a long vibration cycle (a few seconds to tens of seconds), which is mostly used for a fixed clock with a longer energy than savings.
3. Swiming trace hood vibration system
The inside and inside of the shots are fixed on the shaft and splint, respectively.When the strain is deviated from its balanced position and starts to swing, the scarf is twisted and generated, which is usually called the recovery torque.This torque prompts the swing wheel to balance the position of the position.
The upper -point needle system rolls tightly in the original movement system and moves the timing of the time, and the needle is to correct the time of the clock.When the upper strip, the vertical and clutch wheels are in a meshing state.When dialing the needle, the clutch and the vertical wheel are taken off and meshing with the needle wheel.
The working principle of alarm clock
1. Check the appearance first
The color of the bell shell is bright and uniform, without paint, discoloration and rubbing marks.The clock surface should be cleaned, the scale is uniform, and the handwriting should be clear.
2. Check the sensitivity
To start a clockwork slightly, the second hand began to move, proving that the sensitivity was high.The bell with high sensitivity continues the time for a long time.
3. Check the sound of the time
Place the bell on the left and right up and down. If the sound is consistent in all directions in all directions, the sound is consistent and uniform without noise, it means that the go is normal.
4. Check if you touch your needle
Dipping the time and tunnels, the time, the minute hand and the second needle coincide with the second needle (overlap in three needles). A certain gap should be maintained between the three needles and should not be rubbed.At the same time, there should be a proper gap between needles and clock noodles and glass.
5. Check the trouble
Dial the noodles to 3, 6, 9, and 12 respectively, and then dial the clockwise to these places. If the errors of the noise are within 5 minutes, the difference is normal.
6. Check the sound of the alarm
The sound of the alarm should be clear, bright, no dumb, no sound.
7. Check the tightness of the needle spoon and the spoon
The tightness should be moderate.If the spoon pine is pine, it means that there is insufficient elasticity of the upper rotation of the center wheel, which will cause a slow phenomenon of seconds and slowness.If the spoon is pine, the downtown will rotate with the time.But if it is too tight, it is not convenient to use.

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