Quenching inductor for concave spherical surface of scraper knife connecting seat and determination method of matched size

The invention belongs to the technical field of induction heat treatment, and relates to a quenching inductor for a concave spherical surface of a scraper knife connecting seat and a determination method of matched size. The quenching inductor for concave spherical surface of a scraper knife connecting seat comprises a sensor matrix component (3) and an induction coil assembly (4) capable of spraying water, and the two are welded into a whole at a joint (gamma)of the two components; and the induction coil assembly (4) capable of spraying water is provided with a plurality of quenching water holes (Zeta). The invention solves the problem of improvement of induction heating efficiency and influence of ring effect, not only ensures cooling water for the quenching inductor, but also solves the problem of cooling medium required for induction quenching of the concave spherical surface; besides, the invention solves the problem of determining matched sizes required by the quenching inductor, such as effective induction arc end width, effective induction arc radius, a distance between the two round pipe joints and round pipe diameter. The invention realizes easy manufacture and convenient use of the quenching inductor, and more effective control on quality of the induction quenching.