The vibration motor is composed of a special motor and […]
The vibration motor is composed of a special motor and an excitation weight. When the motor is energized and rotated, the vibration block generates an excitation force, and the vertical and horizontal vibration mechanism is transmitted through the foot of the motor. The vibration frequency range of the vibration motor is large, and only the proper combination of the excitation force and the power can reduce the mechanical noise. Today, when the use of vibration motors is so popular, I believe that many people still don't know what the vibration mode of vibration motors is. Today, I will give you a popular science.
Each output shaft of the vibration motor China Concrete Vibrators Manufacturershas a fixed eccentric block and an adjustable eccentric block. Adjusting the angle between the adjustable eccentric block and the fixed eccentric block can change the excitation force. When leaving the factory, the included angle between the adjustable eccentric block and the fixed eccentric block is 0 degrees. At this time, the excitation force is the rated excitation force F of the vibration motor. The excitation force at different included angles: Pay special attention to adjust the excitation force. When vibrating, the adjustable eccentric blocks on the output shafts at both ends of the vibrating motor should be adjusted to the same angle in the same direction.
Steps to adjust the excitation force:
⒈ Remove the protective cover.
⒉ Loosen the tightening bolts of the outer eccentric block.
⒊ The eccentric blocks on both sides should rotate in the same direction, so that the engraved line on the shaft is aligned with the excitation force indication line on the eccentric block to the required excitation force value, and check whether the two ends are at the same angle.
One is called circular or elliptical vibration. The projection of the vibration track of the vibrating body on the horizontal plane is a straight line, and the projection on the vertical plane is a circle or an ellipse, and its vibration form is called a circle or ellipse vibration. The circular or elliptical vibration occurs on a plane perpendicular to the shaft of the vibration motor, and its form depends on the relative position of the vibration motor and the whole machine. Usually a vibrating motor is installed on the body of the vibrating machine to produce this kind of movement. The machine body is strong, the excitation force and output are properly matched, and the excitation force is large. The vibration frequency and amplitude can be selected according to different purposes, which can meet the work needs of various vibration machinery.
The second type is linear vibrationChina Axial-flow Pump With Immense Flow Manufacturers. The projection of the vibration trajectory of the vibrating body on the horizontal plane and the vertical plane is linear, and its vibration form is called linear vibration. Install two vibrating motors of the same type on the vibrating machine body so that the two rotating shafts are in parallel with each other. When the motors are running, they rotate in opposite directions, and the two motors must run synchronously, and the body produces linear vibration. One piece for each of the two shaft ends, the upper shaft end is a fixed eccentric block, and the lower shaft end is an adjustable eccentric block. A set of additional blocks are installed on the outer sides of the upper and lower eccentric blocks. By adjusting the number of the additional blocks, the excitation force of the vibration motor can be adjusted in stages.
The three types are called rotational vibration. When the projection of the vibration track of the vibrating body on the horizontal plane is a circle or an ellipse, its vibration form is called rotational vibration. Because the vibration motor is a strong resistance type vibration instead of resonance, it has a stable amplitude. Rotational vibration can be divided into three forms: flat-rotation type vibration, vortex type vibration, and double-rotation type vibration. When the projection of the vibration trajectory of the vibrating body on the vertical plane is a horizontal straight line, the vibration form is called pan-rotation vibration; when the projection of the vibration trajectory of the vibrating body on the vertical plane is an oblique straight line, the vibration form is called It is a vortex type vibration; when the vibration track of the vibrating body is projected as a circle or an ellipse on the vertical plane, its vibration form is called a compound-rotation type vibration. The excitation force of the vibration motor can be steplessly adjusted, which is convenient to use.