Impeller drive control mechanism of stationary crude oil tank washing machine

Abstract

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.

Description

technical field [0001] The invention relates to an oil tank cleaning device which uses crude oil or seawater as the medium for various oil tanker oil tanks in the shipbuilding industry. Background technique [0002] The main engine of the fixed crude oil washing machine is installed on the hatch cover, and its nozzle part extends into the oil tank. The spiral impeller rotates at a high speed driven by the high-speed fluid. Through multi-stage deceleration transmission, one path is transmitted to the horizontal rotating worm wheel to realize the horizontal 360° rotation of the nozzle seat, and the other path is transmitted to the nozzle to rotate the worm wheel vertically to realize the vertical direction of the nozzle head. Rotation, so that the nozzle head will move according to the spatial spiral curve track during tank cleaning, ensuring the cleaning of the entire inner wall of the oil tank. However, in the current tank washing machine, the impeller is driven by the high...

AI Technical Summary

Problems solved by technology

However, in the current tank washing machine, the impeller is driven by the high-pressure liquid flow, and its speed changes with the change of pressure. If the liquid flow pressure is unstable, it will cause uneven impeller speed. The transmission ratio between the impeller and the main drive worm cannot be changed by a single machine. In addition, the horizontal speed of the nozzle of the general tank washing machine cannot be adjusted, and the single machine cannot automatically stop the tank washing operation, which affects the implementation and cleaning of various tank washing processes. energy consumption and effect

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