Tapered lining of conical crusher and casting process of tapered lining

Abstract

The invention discloses a tapered lining of a conical crusher. The lining is a hollow circular platform body made of a high manganese steel material; the upper bottom of the circular platform body is larger than the lower bottom of the circular platform body; a plurality of strips of annular grooves are transversely formed in the inner surface of the circular platform body; a plurality of grooves for storing lubricating oil are formed in one annular surface of the inner surface above the annular grooves; a limiting structure is arranged at the upper top of the circular platform body; the upper top of the tapered lining is further provided with a step hole for mounting of a dustproof ring; and the hole diameter of the step hole is in a range between the inner diameter and the outer diameter of the upper bottom surface of the circular platform body. The tapered lining is made of the high manganese steel material and a casting process of the tapered lining comprises the steps of shaping, smelting, pouring, carrying out water toughening treatment and the like. The tapered lining disclosed by the invention has very good wear-resisting performance and self-lubricating performance, and long service life, and the production cost can be reduced; and the quality of the lining made by the casting process is very high.

Description

technical field [0001] The invention relates to an auxiliary component of a cone crusher and its casting process, more specifically to a cone bushing of the cone crusher and its casting process. Background technique [0002] The cone crusher is to use the space change in the crushing cavity to achieve the purpose of crushing ore. The bushing bears extrusion stress under the impact load, and the sharp corners of the ore are pressed into the bushing surface, and the higher the hardness of the ore, the deeper the indentation. When the movable cone rotates, a huge shear stress is generated, resulting in a large number of gouges, plow wrinkles and grooves on the surface of the bushing, which is one of the main forms of bushing failure. What's more, because most of the mines in our country cannot avoid the materials with inclusions during the use of cone crushers, such as residual shovel teeth, screws and nuts, etc. At this time, the bushes will be squeezed repeatedly and turtles...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned technologies, and provide a conical bushing of a cone crusher and its casting process. The conical bushing has good wear resistance and self-lubricating performance, has a long service life, and can reduce Cost; the casting process of the tapered bush can obviously overcome the defects such as sand sticking, cracks and shrinkage cavities in the casting during the sand casting process, which makes it difficult to guarantee the quality of the overall bushing of the main shaft, and the casting is extremely difficult.

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