The invention discloses an
impeller drive control mechanism of a stationary
crude oil tank washing
machine, comprising a main transmission part arranged in the main body, an
impeller drive part, an
impeller drive start-stop control part and a
nozzle horizontal rotation speed adjustment mechanism connected with the impeller drive part. The impeller drive part comprises an impeller, a
hydraulic control stop valve at the front end of the impeller, a transmission shaft connected at the rear end of the impeller, a main spring sleeved on the transmission shaft, an auxiliary spring and a worm. The warm is connected with the
nozzle horizontal rotation speed adjustment mechanism via a worm gear engaged with the worm. The
nozzle horizontal rotation speed adjustment mechanism comprises an eccentric gear and a transmission rod arranged on the worm gear. The lower end of the transmission rod is connected with the eccentric gear on the worm gear. A speed adjustment rod and a speed adjustment swing rod are connected at the top of the transmission rod. A slide block is arranged on the transmission rod. The slide block is connected with the sliding way of the speed adjustment swing rod. The speed adjustment swing rod is connected with the main transmission worm rod. The impeller drive start-stop control part comprises a control valve connected with the
hydraulic control stop valve, a
handle connected with the control valve, a manual
control rod connected with the
handle via a connection rod as well as an upright rod, a lever, a
vertical control pull rod and a stop block on the
vertical control pull rod which are connected with each other. The mechanism can automatically adjust the axial position of the impeller, and the nozzle horizontal rotation speed is adjustable. The mechanism can realize the single
machine automatic shutdown by means of the mechanism.