| 摘要 |
FIELD: building industry; electromechanical vibrators used in building. ^ SUBSTANCE: the invention is pertaining to the vibration engineering, in particular, to the electromechanical vibrators used in building for the concrete consolidation by vibration. The electromechanical vibrator uses as the misbalance the located in the vibrator stator internal reboring geared cylindrical core made out of the electric steel plates, which is fixed in the body by means of the resilient components with the capability of the circular motion inside the electromagnetic system of the stator. Such design allows to gain during the electromechanical vibrator operation the circular trajectory of movement of the mass center of the magnet keeper without its rotation around its own axis. The electromagnetic system of the stator is made with the one-sidedly-asymmetric rotating magnetic field. Physically it means substitution of rotation of the core mass center around its own axis for its translational movement on the curvilinear (circular) trajectory. At that instead of the contact friction of the rolling bodies in the bearing box use the deformations of the molecular bonds in the resilient component, for example made out of the elastomer, which are practically wear-free. The technical result of the invention is the increased reliability and the expanded range of the smooth adjustment of the frequency and amplitude of the vibrator oscillations. ^ EFFECT: the invention ensures the increased reliability and the expanded range of the smooth adjustment of the frequency and amplitude of the vibrator oscillations. ^ 4 cl, 5 dwg |
