Classification and comparison of acoustic motor
time£º2017/8/18 click£º9207
The ring motor is named after its structure similar to that of the horn. It is a special form of direct drive motor that can directly convert electrical energy into linear motion mechanical energy without the need for any intermediate conversion mechanism. In recent years, with the improvement of the performance requirements of high-speed high-precision positioning systems and the rapid development of sound coil Motors, sound coil motors have not only been widely used in precision positioning systems such as disk and laser record positioning. It is also widely used in many different forms of high acceleration and high frequency excitation. For example, the positioning of lenses in optical systems; Multi-coordinate positioning platform for mechanical tools; Precision electron tube and vacuum tube control in medical device; In the flexible robot, in order to make the end actuator position quickly and accurately, the sound loop motor can be used to effectively suppress vibration.
The principle of the coil motor is to put a cylindrical winding in the uniform air gap magnetic field. The winding power generates electromagnetic force to drive the load to make a linear reciprocating motion. Changing the strength and polarity of the current can change the size and direction of the electromagnetic force.
Sound coil Motors, according to their form of motion, can be roughly divided into rotary sound coil motors and linear sound coil motors. The linear coil motor belongs to the linear DC motor. The stroke is limited, but it has good dynamic characteristics and can be driven directly. Compared with the traditional driving mode of rotating and adding ball screw, the main mechanism part has the advantages of simple main structure, fast dynamic response, wide speed range and high positioning precision. With the development of control technology, the application range of linear coil motor is also expanding, and it is popular in various short-stroke servo applications.
Through the characteristic comparison, it is found that in order to satisfy the high-speed and high-frequency response motion characteristics of the fast positioning system, it is selected as far as possible under the condition of fixed mobile mass, so that it can have a large working current, a small power consumption, and a large output force.
Kunshan Tongmao Electronics Co., Ltd. produces sound coil motors that belong to: inner magnetic and short coil structures. Because it can provide large thrust and high speed, it is widely used. We will continue to focus on the development and manufacturing of more market, suitable for the needs of customers of the ring motor, welcome the majority of friends to pay more attention to the same.
Linear motor