Air inlet channel test throttling cone

The invention belongs to the technical field of air inlet channel wind tunnel tests and particularly relates to a throttling cone. According to the technical scheme, the air inlet channel test throttling cone comprises an air inlet pipeline (1), a plugging cone (10), a motor (6), a ball screw pair (8) and a sliding sleeve (2). Under the act of the driving force of the motor (6), screws in the ball screw pair (8) are driven to rotate through a transmission shaft (9), nuts of the ball screw pair (8) are made to move back and forth along the screws, and thus the sliding sleeve (2) is driven to move back and forth inside the fixed air inlet pipeline (1). The sliding sleeve (2) moves back and forth to form different circulating channel areas with the plugging cone (10), and thus the throttling effect is achieved.