Self-cooling and self-lubricating type throttle valve

The utility model discloses a self-cooling and self-lubricating type throttle valve, and belongs to the technical field of control valves. The throttle valve provided by the utility model comprises afirst gland (1), stator (3), rotor (4), a planetary gear reducer (5), lead screw (6), a stroke detector (7); a lower valve body (8), a valve seat (9), a throttle valve clack (10), a stator shielding sleeve (11), a lower fastening bolt (12), a stroke sliding block (13), a lead screw nut (14), a lower rolling bearing (15), an upper fastening bolt (16), a second gland (17), an upper valve body (18),an output gear (19), a duplicate gear (20) and a fixed gear (21). Compared with the prior art, the throttling valve has the advantages of being simple in structure, reliable in performance, high in cost performance and the like, media conveyed by the throttling valve can be effectively used for cooling internal components, and therefore the service life of the throttling valve is effectively prolonged. 本实用新型公开了一种自冷却自润滑型节流阀