Method for repairing moving cone of cone crushing machine

Abstract

The invention discloses a method for repairing a moving cone of a cone crushing machine, belongs to a mine crushing device, and particularly relates to a crushing machine part. The method for repairing the moving cone by M220 bolt sticking comprises the following steps: 1, setting process hasps; 2, mounting a vertical lathe; 3, cutting away exposed bolts; 4, removing residual bolts in the moving cone and carrying out secondary processing by the steps as follows: 1) drilling for the first time, 2) expanding for the first time, 3) removing scraps, 4) drilling for the second time, 5) expanding for the second time, and 6) removing bolt residues; 5, removing the process hasps; and 6, reassembling. Compared with the prior art, the method has the advantages of novel concept, reasonable repair process, simple facilities, high efficiency, quickness in recovery, favorability for ore crushing production, and capabilities of repairing the old, utilizing the waste, making the best use of everything, saving the resources, reducing the spare part expense and lowering the production cost.

Description

technical field [0001] The invention belongs to a mining crushing device, in particular to a crusher part. Background technique [0002] HP500 cone crusher is a fine crushing equipment for mineral processing, and its moving cone is an important part of the crusher, responsible for the crushing task. The moving cone is huge, with a height of 1.3m, a maximum diameter of 1.3m, and a weight of 7000kg. The moving cone is a manganese steel shell, a carbon steel cone, and a copper conical frustum with a copper bottom. The ore crushing wall is set on the conical frustum, which is fixed by M220 bolts. Due to the erosion of impurities such as mineral powder, after the movable cone has been in operation for a period of time, the bolts fail and the movable cone is bonded together and cannot be removed, so that the crushing wall protecting the movable cone cannot be removed and replaced, which affects the crushing production. The current methods are as follows: one is to take out the b...

AI Technical Summary

Problems solved by technology

Due to the erosion of impurities such as mineral powder, after the movable cone has been running for a period of time, the bolts fail and the movable cone is bonded together and cannot be removed, so that the crushing wall protecting the movable cone cannot be removed and replaced, which affects the crushing production

The current methods are as follows: one is to take out the bolts by cold working method, the workpiece is too large, and it is difficult to install and feed the tool; the other is to weld long rods on the bolts, and use heavy objects to hit them, so that the threads "stick to death" and do not loosen. The third is that the moving cone is scrapped and replaced with a new moving cone

The disadvantage is that the former affects the production of crushed ore, and the latter is scrapped only because the movable cone bolt cannot be taken out, which is a waste of resources, which is a pity; the cost of spare parts is high, and the production cost is high

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