THYRATRON MOTOR AND PROCESS OF ITS ASSEMBLY Russian patent published in 2001 - IPC

FIELD: electrical engineering, instrumentation. SUBSTANCE: invention can find use in stomatology or in engraving operations as high-speed drive. Thyratron motor has frame with first rotation bearing, magnetic circuit of armature, winding with end parts, one of them being funnel-shaped, rotor in the form of shaft with output end in whose space permanent magnet and second rotation bearing are installed, shield with axial protrusion. Output end of shaft is passed through rotation bearing of frame and axial protrusion of shield is located in second rotation bearing. Motor in correspondence with invention is fitted with cup with axial hole in bottom made fast to shaft and coaxially to the latter. Magnetic circuit is anchored on internal side wall of cup, winding is placed with clearance relative to internal surface of magnetic circuit and is made fast to frame on side of its end part of funnel-shaped form. Process of assembly of proposed motor includes installation of rotor in the form of shaft with output end and permanent magnet and second rotation bearing housed in its space, passing of output end of shaft through rotation bearing of frame, placement of winding between internal surface of magnetic circuit of armature and shaft, joining of frame and shield with simultaneous installation of axial protrusion of shield in second rotation bearing and subsequent anchoring of end part of funnel-shaped form. In agreement with invention first reducing-spacing centering sleeve is mounted inside magnetic circuit of armature on external surface of shaft prior to placement of winding between internal surface of magnetic circuit of armament and shaft, then winding is installed in it, later second reducing-spacing sleeve is put between internal surface of winding and sleeve. After attachment of end part of funnel-shaped form frame and shield with winding anchored on it are dismembered, reducing-spacing sleeves are removed and repeat final joining of frame and shield with winding anchored on it is carried out. EFFECT: expanded range of operational speeds and enhanced efficiency of motor. 5 cl, 6 dwg