Casting sand box turnover rotating shaft capable of preventing chain abrasion based on self-rotation

Abstract

The invention provides a casting sand box turnover rotating shaft capable of preventing chain abrasion based on self-rotation, and relates to the technical field of casting sand box turnover. According to the casting sand box overturning rotating shaft capable of preventing the chain from being abraded based on self-rotation, the periphery of the rotating wheel is elastically connected with a telescopic ring, the periphery of the telescopic ring is in transmission connection with a chain ring, and the interior of the rotating wheel is rotationally connected with a first bevel gear. A first bevel gear is driven to rotate through rotation of a rotating wheel, a telescopic rod moves under the action of centrifugal force, so that an oil bag is extruded, a lubricating agent reaches the surface of a chain, and the effect of automatically adding the lubricating agent is achieved; when the rotating speed is increased, magnetism generated by the electromagnet is enhanced, so that the magnetic pole drives the telescopic ring to approach the rotating wheel, friction force between the chain ring and the telescopic ring is reduced, and the effect of preventing the chain from being abraded is achieved.

Description

technical field [0001] The invention relates to the technical field of casting sand box turning over, in particular to a casting sand box turning shaft that prevents chain wear based on its own rotation. Background technique [0002] The sand box turning box in the foundry workshop is a mechanical lifting device for turning the sand box of the machine. It is used in conjunction with the sand box turning machine to lift the workpiece in the air. During the casting process, the temperature in the sand box is very high, and the sand needs to be removed The liquid in the box is poured out. At this time, a turning machine is needed to lift the sand box and tilt it to turn it over, so as to pour out the liquid. Since the periphery of the turning machine is driven by a chain, under long-term working conditions, the chain needs to be adjusted. Add lubricating oil to prevent the chain from sliding smoothly, but manually adding lubricant needs to stop the machine, which reduces the wo...

AI Technical Summary

Problems solved by technology

[0002] The sand box turning box in the foundry workshop is a mechanical lifting device for turning the sand box of the machine. It is used in conjunction with the sand box turning machine to lift the workpiece in the air. During the casting process, the temperature in the sand box is very high, and the sand needs to be removed The liquid in the box is poured out. At this time, a turning machine is needed to lift the sand box and tilt it to turn it over, so as to pour out the liquid. Since the periphery of the turning machine is driven by a chain, under long-term working conditions, the chain needs to be adjusted. Add lubricating oil to prevent the chain from sliding smoothly, but manually adding lubricant needs to stop the machine, which reduces the working efficiency of the machine, and when the turning speed of the turning machine is too fast, the friction between the chain and the shaft increases , if the weight of the sand box to be flipped is heavy, the chain may be worn or even broken, and even accidents may occur

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