Self-rotating spray gun capable of balancing rotational speed for forward mixed type ship derusting machine

Abstract

The invention discloses a self-rotating spray gun capable of balancing the rotational speed for a forward mixed type ship derusting machine. The self-rotating spray gun comprises a rotating body sleeve, a framework oil seal, a rotary liquid outlet long shaft, a thrust ball bearing, an angular contact bearing, a skeletonless oil seal, a rotary alloy butt sleeve, a static alloy butt sleeve, a rotating body liquid inlet lock nut, a fluororubber O-ring, a support spring, a DC inverter motor, a gearbox, a motor gear, a deep groove ball bearing, a self-rotating gear, an O-ring, a flange, a sheath lock nut, a rotary liquid outlet long shaft sheath, bolts, a deep groove ball bearing, a rubber oil seal, a rotary nozzle lock nut, a rotary nozzle, an upper alloy nozzle, a lower alloy nozzle, a spraygun support, a spray gun rod, a gun rod liquid inlet joint, a lithium battery, wires and a resistance governor. The self-rotating spray gun is a device capable of balancing the rotational speed of a self-rotating nozzle through the DC inverter motor.

Description

technical field [0001] The present invention is a self-rotating spray gun with a pre-mixed ship derusting electromechanical balance rotation speed, specifically a device that can balance the rotation speed of the self-rotation spray head through a DC inverter motor. Background technique [0002] At present, most of the rotary nozzles of marine descaling machines are self-rotating. The self-rotating forms are divided into single nozzle rotation and double nozzle rotation: single nozzle rotation is only suitable for pure water media, and mixed water media will block and wear the rotating core inside the rotary nozzle. As a result, the rotation suddenly stops during the rotation and cannot work normally; in this way, only two wear-resistant alloy nozzles can be used. The vertical distance between the two nozzles is 30mm, and the coaxial angle is 30°. It rotates naturally, and the rotation speed is very unstable due to various objective conditions: the pressure is high and the r...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the rotary nozzles of marine descaling machines are self-rotating. The self-rotating forms are divided into single nozzle rotation and double nozzle rotation: single nozzle rotation is only suitable for pure water media, and mixed water media will block and wear the rotating core inside the rotary nozzle. As a result, the rotation suddenly stops during the rotation and cannot work normally; in this way, only two wear-resistant alloy nozzles can be used. The vertical distance between the two nozzles is 30mm, and the coaxial angle is 30°. It rotates naturally, and the rotation speed is very unstable due to various objective conditions: the pressure is high and the rotation speed is large, otherwise the rotation speed is small or does not rotate; the nozzle diameter is large and the rotation speed is large, otherwise the rotation speed is small or does not rotate; The nozzle cannot keep rotating in a rotation speed range of about 1000rpm

However, there is no device that can keep the rotary nozzle rotating at a rotational speed range of about 1000 rpm under different objective conditions to solve this problem.

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