| 摘要 |
The invention relates to an electric vibratory motor also functioning in potentially explosive environment, meant to clean the sieves, buckets, tubes, channels and pipes, to stop mechanically the process of concrete and other similar material hardening, to settle the products of various densities in containers, in automated working, where a regular feeding of material is essential for a good functioning of the installation. According to the invention, the motor is a non-synchronous three-phase short-circuited rotor motor. The motor is accomodated by means of a holder bearing (2) which is slidably centered inside a special seat (a) machined in the shield (1), a small cover (3) and a roller bearing (4) with NJ rollers. The holder bearing is integral with a shield (1) by means of two screws (8), the small cover (3) is centered outside in the same holder bearing and is secured to the shield (1) by means of four screws (9) supplementarily securing the holder bearing (2). From the point of view of the construction, the explosion-proof connection (i) is made with a diameter larger than the external diameter of the internal ring neck (d) of the bearing (4) and the seat (a) especially machined in the shield (1) is made a larger diameter than the elevation of the gap (b) located on the rotor (B).
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