Cone sand maker rolling-based sand making cavity assembly being smaller than 2000 mm in diameter and manufacturing method

Abstract

The invention relates to a cone sand maker rolling-based sand making cavity assembly being smaller than 2000 mm in diameter and a manufacturing method. The cone sand maker rolling-based sand making cavity assembly comprises a rolling mortar wall and a crushing wall, wherein the upper parts of the rolling mortar wall and the crushing wall are made of high manganese steel, and the lower parts thereof are made of high-carbon chromium steel. The cone sand maker rolling-based sand making cavity assembly has the following advantages: (1) the fatal defect that sand making cannot be performed during the sand making process because the single material rolling mortar wall and a single material crushing wall suffer different abrasion losses from different sized stones, the upper parts of the single material rolling mortar wall and the single material crushing wall are slightly abraded while the lower parts thereof are seriously abraded, and a groove is formed in a rolling-based sand making cavity can be fundamentally overcome; (2) the abrasion loss caused by high manganese steel at the upper parts of the rolling mortar wall and the crushing wall during the stone crushing process is relatively consistent with that of the rolling-based sand making cavity in the high-carbon chromium steel lower part of the rolling mortar wall, so that not only are the service lives of the rolling mortar wall and the crushing wall greatly prolonged, but also the sand making cost is reduced on the premise that the use costs of the rolling mortar wall and the crushing wall are greatly reduced.

Description

technical field [0001] The invention relates to a conical sand making machine, which can meet the wear-resisting requirements for crushing crushed stones and meet the wear-resisting requirements for crushing and compacting sand in the sand-making process. The assembly and the manufacturing method belong to the field of assembly manufacturing of cone sand making machine components. Background technique [0002] CN102350388A, the name "high chromium rolling mortar wall assembly for conical sand making machine", it includes the rolling mortar wall assembly, and it is characterized in that: the material of the rolling mortar wall is high chromium white wear-resistant cast iron, and its chromium content is greater than Or equal to 9%, equal to or less than 32%. Advantages: First, the wear resistance of the rolling wall is greatly improved, and its wear resistance is about 5 times that of the current high manganese steel rolling wall. Not only the service life is greatly extended...

AI Technical Summary

Problems solved by technology

However, due to the two different working states of the cone sand making machine from stone crushing to sand making in the process of sand making, the upper part of the rolling mortar wall is used for crushing stone materials, and the impact load formed by the stone materials on the upper part of the rolling mortar wall And contact extrusion, and the stone material and the wall of the rolling mortar are indeterminate, not all contact crushed crushed stones, so the wear state of the upper part of the wall of the rolling mortar is relatively small; while the lower part of the wall of the rolling mortar is rolling. In the sand making part, the crushed stones are completely contacted and overlapped with the mortar wall, and the crushed stones located between the mortar wall and the crushing wall are under the strong rolling of the mortar wall and the crushing wall. Sand and gravel are very serious in wearing and tearing the rolling mill (including the broken wall)

If a single material is used to make the wall of the mortar, no matter it is manganese steel or high-carbon chromium steel, the wear amount of the stone of different specifications on the wall of the mortar is different, and the wear of the upper part of the wall of the mortar is small, and the wear of the middle part is smaller than that of the upper part. However, when the lower part wears and forms grooves, the wall of the rolling socket is worn out and scrapped.

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