Air-cooled electric vibrating table

A novel air-cooling electric vibrating table, comprising a magnetic cylinder body, a magnetic cylinder cover, a magnetic cylinder bottom, a lower air cover, and an upper cover, the magnetic cylinder body being internally provided with a central magnetic pole, a moving coil, and an excitation coil whose central axes coincide and that are arranged from the inside to the outside, the magnetic cylinder cover being provided with air inlets circumferentially distributed corresponding to the excitation coil, the magnetic cylinder bottom supporting and fixing the central magnetic pole and carrying the excitation coil, the magnetic cylinder bottom being provided with ventilation holes distributed in a projection area of the excitation coil, the ventilation holes being in communication with an air outlet on a bottom side of the lower air cover and externally connected to an air duct and a blower, the moving coil extending upward to a moving coil table above the magnetic cylinder cover, and extending downward from a center of the moving coil table to be connected to a support air spring in an inner cavity of the central magnetic pole,

• wherein the magnetic cylinder body is provided with air duct structure blocks that are discontinuous and evenly distributed along a circumferential direction of the excitation coil, the air duct structure blocks are arranged at least one place on a surface of the excitation coil and between the excitation coil and the magnetic cylinder bottom, and a shape and a number of the air duct structure blocks provided at each place are the same or different;
• the air duct structure block is provided with a diversion corner, an outer end corner, and an inner end corner that are distributed in a triangle with curved edges, and a semi-opened groove is provided between the outer end corner and the inner end corner, an opening of each air duct structure block orients a circumferential direction of the cavity and is consistent, a radial position of each vertex of the outer end corner and the inner end corner is located between inner and outer edges of the excitation coil, the semi-opened groove of each air duct structure block provided on the surface of the excitation coil axially coincides with or is adjacent to each air inlet, and the semi-opened groove of each air duct structure block provided between the excitation coil and the magnetic cylinder bottom axially coincides with or is adjacent to the ventilation hole.