Concave-convex arc-shaped rolling mortar wall and crushing wall and matching method for cone sand making machine

Abstract

The invention relates to special concave-convex arc rolling mortar walls and breaking walls for a cone sand making machine and a matching method, which can radically solve the problems of the cone sand making machine that a main shaft is easy to break due to concentrated stress, and produced sand cannot flow downwards due to sand bridging in sand making cavities. The sand making cavities of the cone sand making machine are formed by rolling mortar surfaces of the rolling mortar walls and breaking surfaces of the breaking walls in the cone sand making machine, when small stones enter the sand making cavities under the action of the main shaft of the cone sand making machine, the main shaft drives the breaking surfaces of the breaking walls sleeved on a movable cone to form curved grinding fit with the rolling mortar surfaces of the rolling mortar walls along arc curves through the movable cone, as the rolling mortar surfaces of the rolling mortar walls and the breaking surfaces of the breaking walls are in concave-convex arc line-surface fit, the positions of the grinding arc curves and surfaces acted on the arc curves and surfaces of the rolling mortar surfaces of the rolling mortar walls are different along with the different rotating angles of the main shaft, therefore, arc curve sand bridging is avoided, and concentrated stress borne by the main shaft of the cone sand making machine is avoided.

Description

technical field [0001] The invention relates to a conical sand making machine special concave-convex arc-shaped rolling mortar wall and crushing wall and matching method that can fundamentally change the main shaft of the conical sand making machine to be stressed and easily broken, and the sand material bridged by the sand making chamber to make sand cannot be lowered. , which belongs to the field of sand cavity manufacturing of cone sand making mechanism. Background technique [0002] CN201552020U, name "a special sand making chamber for a conical sand making machine", the upper casing is located at the upper end of the lower casing, the adjusting screw sleeve is located on the upper casing and is spirally connected with the upper casing, and the inner wall of the adjusting screw sleeve is The middle is raised, and the upper and lower sides are respectively ring-shaped horn-shaped slopes. The anti-wear fixed sleeve is connected with the lower ring-shaped horn-shaped slope ...

AI Technical Summary

Problems solved by technology

Since the mortar surface of the mortar wall in the sand-making chamber is in linear contact with the crushing surface of the crushing wall, in actual use, the huge force generated by the sand-making chamber in order to crush stones during sand-making is useless. Dispersion, directly acting on the main shaft, causing frequent breakage of the main shaft; secondly, because the sand making chamber is crushed by surface extrusion, when the water content of the stone is slightly larger, it will cause sand grinding and bridging, resulting in no sand in the sand making chamber suffocation, the motor current increases sharply, causing the motor to be burned due to excessive current, and the wall of the mortar and the broken wall are damaged.

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