- Jul 03, 2018 -
What are the characteristics of a good hammer?
1. Good shock absorption system: It can make the operator feel comfortable and relieve fatigue. The way to achieve: through the "vibration control system" to achieve; through the soft plastic handle to increase the grip comfort.
2, accurate speed switch: low speed when tapping the switch, can help the machine to start drilling smoothly (for example, drilling on a smooth surface such as ceramic tiles, not only can prevent the drill bit from slipping, but also prevent the drill hole from rupturing. Normal work High speed can be used to ensure work efficiency.
3. Stable and reliable safety clutch: Also known as torque limiting clutch, it avoids the large torque reaction force generated by the bit stuck in the user during use, which is a kind of safety protection for the user. This feature also prevents the gear unit and the motor from stopping.
4, comprehensive motor protection device: in use, there will inevitably be granular hard objects entering the machine (especially drilling the machine upwards, such as drilling the top of the wall), if the motor does not have certain protection, rotate at high speed The middle pole is easily broken or scratched by the hard object, which eventually leads to motor failure.
5, positive and negative function: can make the hammer more widely used, its implementation is mainly achieved by switching or adjusting the position of the carbon brush. Usually the big-name tools will be adjusted by adjusting the position of the carbon brush (rotary brush holder). The advantage is that it is easy to operate, effectively suppress sparks to protect the commutator and extend the life of the motor.
6, hammer drill dual function:
Advantages: The advantages are high efficiency, large aperture and long drilling depth.
Disadvantages: The disadvantage is that the vibration is large and has a certain degree of damage to the surrounding structures. For the steel bars in the concrete structure, it cannot pass smoothly, and it cannot be too close to the building due to the requirements of the working range.
Working principle: The principle of electric hammer is that the transmission mechanism drives the drill bit to make the rotary motion, and there is also a reciprocating hammering motion perpendicular to the rotary head. The electric hammer is driven by the transmission mechanism to reciprocally compress the air in a cylinder. The periodic change of the air pressure in the cylinder drives the hammer in the cylinder to reciprocate against the top of the brick. It is as if we hammered the brick with a hammer, hence the name hammer!
Power tools are low-value consumables and therefore have greater market potential. In the commodity wholesale market, it is known that the sales of electric tools such as electric hammers are relatively popular. The business of foreign trade sales is mainly concentrated in Europe, America and the Middle East. Therefore, the electric hammer is very easy to use!