Sound motor(loop motor) head drive for commander role
time£º2018/9/21 click£º5380
The coil motor(coil motor) head drive that plays the role of commander. The commander plays a pivotal role in any field. In the current band, the commander can control the speed of the entire song and the effect of the performance; In team games such as foot basketball, commanders(coaches) can adjust their combat thinking in time to control the rhythm of offense and defense; In ancient times, such as the Three Kingdoms period, Zhuge Liang, Guo Jia, Sima Yi, and Zhou Yu were actually commanders, commanding how to fight and how to rule the world. For the hard disk, the head drive mechanism is like a commander, which shows its importance.
The internal structure of the hard disk is an important part of the hard disk technology, and the head drive mechanism is also a key part of the head technology. The head drive mechanism controls the reading and writing of the head and sends instructions directly for the transmission arm and the transmission shaft. The magnetic head drive mechanism is mainly composed of a coil motor(coil motor), a magnetic head drive car and an anti-vibration mechanism. The head drive mechanism drives the head correctly and accurately on the track specified by the system instruction in a short period of time to ensure the reliability of data reading and writing. In general, there are three types of motors for the head mechanism: stepper motors, torque Motors, and coil Motors(coil motors). Nowadays, hard drives are driven by coil Motors(coil motors). The coil motor(coil motor) is a coil inserted in the middle with a magnetic rod connected to the head. When the current passes through the coil, the magnetic rod will shift, which in turn drives the car carrying the head. According to the information coding of the controller's head position on the disk surface, the distance of head movement is obtained, and the purpose of accurate positioning is achieved.
So why does the current head drive mechanism use more coil Motors(coil motors) rather than stepping motors? Because the structure of the stepper motor drive mechanism is compact and the control is simple, the entire drive positioning system is open-loop control, and the stepper motor is driven by pulse signals. Therefore, the positioning accuracy is relatively low and the access time is longer. The coil motor(coil motor) can directly drive the head for linear motion. The whole drive positioning system is a closed-loop adjustment automatic control system with speed and position feedback. The speed of driving is fast and the accuracy of positioning is high.
Kunshan Tongmao has been continuously improving the efficiency and productivity of complex manufacturing processes for more than a decade. Its products such as linear Motors, linear modules, linear slides, coil Motors(coil motors), and coil modules have been widely used at home and abroad. Customer trust, Our breakthrough innovation has benefited from our experience in applications in various industries around the world.
This article originated from the original company of Kunshan Tongmao Electronics Co., Ltd.(www.tmmotion.com). Please indicate the source.
Linear motor