Rotating servo oil motor of steam distribution mechanism

• Main Authors: HU JIANGUO, ZHENG XIAOZONG, CHEN JIN, DONG JINGZONG
• Format: Patent
• Language: Chinese; English
• Published: 09.05.2012
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; ENGINE PLANTS IN GENERAL; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ENGINES; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

The invention discloses a rotary servo oil motor. An oil valve for receiving power oil is connected with a digital electro-hydraulic governor which generates control signals; the oil valve inputs the power oil to corresponding cavities connected in an oil cylinder according to the control signals so as to drive a cam and a rotary valve which are connected with a rotating shaft in the oil cylinderto rotate; the rotary valve drives an adjusting air valve which controls the rotating speed of a steam turbine; and the cam on the rotating shaft is further connected with a restorer which adjusts a slide valve to return to a balance position according to the rotational angle value of the rotating shaft. The rotary servo oil motor performs rotary motion to drive a butterfly adjusting valve to rotate directly without generating additional driving friction force. A servo oil motor shaft can be in rigid connection with a butterfly valve shaft without underdrive. The rotary servo oil motor can reduce the rotating shaft di