The vibration motor is composed of special motor and exciting weight. When the motor is energized and rotated, the exciting force is generated by the exciting weight, and the Longitudinal and transverse vibration is transmitted through the motor foot. Vibration Motor vibration frequency range is large, only the exciting vibration force and power with appropriate to reduce mechanical noise. In the use of vibration motor so popular today, I believe that there are still many people do not know how the vibration of vibration motor exactly, today, for everyone popular science.
A fixed eccentric block and an adjustable eccentric block are arranged on the outlet shaft of the vibration motor. The exciting force can be changed by adjusting the angle between the adjustable eccentric block and the fixed eccentric block. When the angle between the adjustable eccentric block and the fixed eccentric block is 0 degrees, the excitation force is the rated excitation force F of the vibration motor, the excitation force at different angles: Special attention should be paid when the excitation force is adjusted, the adjustable eccentric blocks on the two ends of the shaft of the vibration motor are adjusted to the same angle in the same direction.
ADJUSTING STEP OF EXCITATION FORCE: 1. Remove the protective cover. 2. Loosen the tightening bolt on the outside eccentric. 3. The eccentric blocks on both sides shall be rotated in the same direction so that the marks on the shaft are aligned with the exciting force indicating line on the eccentric block to the required exciting force value and check whether the two ends are at the same angle.
One is called the circular or elliptical vibration. The vibration track of a vibrating body is a straight line on the horizontal plane, and the projection on the vertical plane is a circle or an ellipse. The circular or elliptical vibration occurs on a plane perpendicular to the shaft of the vibrating motor. The form depends on the relative position of the vibrating motor and the whole machine. Usually a vibration motor installed in the vibration of the mechanical body, can produce this movement. The vibration frequency and amplitude can be selected according to different uses, which can meet the needs of all kinds of vibration machinery.
Two are linear vibrations. The projection of the vibration track of a vibrating body on the horizontal plane and the vertical plane is a straight line, and its vibration form is called the straight line vibration. Two vibrating motors of the same type are installed on the vibrating machine body, so that the two rotating shafts are parallel to each other. When the motors turn to the opposite direction, the two motors will run synchronously and the body will produce linear vibration. The upper shaft end is a fixed eccentric block, and the lower shaft end is an adjustable eccentric block. A group of additional blocks are respectively arranged on the outer side of the upper and lower eccentric blocks, and the exciting force of the vibrating motor can be adjusted in stages by adjusting the number of the additional blocks.
Three are called rotational vibrations. When the vibration track of a vibrating body is a circle or an ellipse in the horizontal plane, its vibration form is called rotational vibration. Because vibration motor is strong resistance-type vibration rather than resonance, so there is a stable amplitude. The spin vibration can be divided into three forms: The flat spin vibration, the vortex vibration and the complex spin vibration. When the vertical plane of the track of vibration of the body is a horizontal straight line, its vibration form is called the translation vibration; when the vertical plane of the track of vibration of the body is a oblique straight line, its vibration form is called vortex vibration; when the vibration track of the vibrating body is projected on the vertical plane as a circle or ellipse, its vibration form is called complex rotation vibration. The exciting force of the vibrating motor can be adjusted stepless, so it is convenient to use.
Post time: Mar-16-2021