Motor-driven grating type spiral gate valve

Abstract

The invention discloses a motor-driven grating type spiral gate valve, and relates to a motor-driven grating type spiral gate valve capable of controlling the conveying of powder. The grating gate valve consists of a motor drive head device, an electric control device, a gate valve body, a gate plate and a transmission device, wherein the motor drive head device is in mechanical connection with a connecting rack through a bolt, a plain washer, an elastic washer and a nut; a motor drive head core shaft sleeve is in mechanical connection with a motor drive head core shaft; and the motor drive head device is electrically connected with the electric control device. When the gate valve is opened and closed, the travel of the gate plate is only one third of gate plate travel of the conventional spiral gate valve, the gate valve slides in the gate valve body, and a screw sleeve which is connected with the gate plate in the transmission device slides under the action of a sealing ring, so that the powder in the gate valve body cannot be leaked to the outside and cannot enter a barrel of the transmission device to influence the normal operation of a screw rod, the screw sleeve and a bearing. The gate valve has a simple structure and low cost and is convenient to mount; and the gate valve can be operated within a long distance in the electric control process, so that the fitness of workers is protected.

Description

Technical field: [0001] The invention relates to a grid-type screw gate valve driven by a motor to control powder conveying. Background technique: [0002] At present, powder silos and powder conveying pipelines generally use the method of opening and closing screw gate valves to control the delivery of powder materials. Traditional screw gate valves have long gate strokes, slow opening and closing speeds, and poor gate sealing, which is prone to dust leakage. 1. The exposed transmission parts are easily blocked by dust, resulting in difficult rotation and other defects, which bring a lot of inconvenience to the operator and even affect production. Manual operation brings fatigue to workers and is polluted by close-range dust. Invention content: [0003] The object of the present invention is to provide a motor-driven grille-type spiral gate valve, which overcomes the problems of slow opening and closing speed, poor gate sealing, easy dust leakage, and exposed transmission...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a motor-driven grille-type spiral gate valve, which overcomes the problems of slow opening and closing speed, poor gate sealing, easy dust leakage, and exposed transmission parts of the traditional spiral gate valve. Dust blockage causes technical defects such as difficulty in rotating the net. It has the characteristics of short gate stroke, fast opening and closing speed, tight gate seal without dust leakage, transmission parts and dust separation seals can be lubricated with grease, and the operation is light and fast.

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