Disassembly and installation method of hydraulic coupling of pulverizer

Abstract

The invention discloses a pulverizer liquid coupling disassembling and assembling method. A disassembling and assembling device comprises a screw and a sleeve, and the sleeve is in thread fit with thescrew and the shaft end of a pulverizer; during normal disassembling, the screw is fed in from the input end of a liquid coupling and screwed into a thread hole in the output end shaft head, the sleeve is screwed on the screw to be screwed into the coupling, the sleeve is rotated, and through the pitch difference between the inner thread of the sleeve and the outer thread of the screw, thrust augmentation is formed to achieve detaching of the liquid coupling. During detaching under the accident state, the sleeve is screwed in from the input end of the liquid coupling, an ejector rod of a 50thydraulic grabbing part is ejected into an output end shaft of the liquid coupling, and through the hydraulic grabbing part grabbed on the sleeve, the coupling is grabbed down. During mounting, the screw is screwed into the shaft end thread hole, the sleeve is arranged on the screw in a sleeving manner and is screwed into the coupling, the sleeve is rotated, and mounting of the liquid coupling canbe achieved. Disassembling and assembling reliability of the coupling can be improved, damage to replacement parts due to mis-operation can be avoided, labor intensity of overhauling persons can be reduced, and work efficiency is improved.

Description

technical field [0001] The invention belongs to the field of mechanical equipment, and in particular relates to a method for disassembling and installing a pulverizer hydraulic coupling. Background technique [0002] The pulverizer in the coal preparation area of ​​the coking plant uses the YOXF1150 hydraulic coupling, which has a large size and a diameter of 1150mm. The shell is made of aluminum alloy and has low relative strength. The common disassembly method is to use a single lead screw to screw in from the input end, and then disassemble it by screw force after pushing it to the output shaft. When installing, it is installed by tapping the carbon steel part in the middle of the shell. This method is more convenient and practical when disassembling a general small-sized coupling, but when disassembling a larger-sized hydraulic coupling, it is often caused by insufficient strength due to over-tight assembly, key crushing, etc., and it cannot be disassembled or installed ...

AI Technical Summary

Problems solved by technology

This method is more convenient and practical when disassembling a general small-sized coupling, but when disassembling a large-sized hydraulic coupling, it is often caused by insufficient strength due to over-tight assembly, key crushing, etc., and cannot be disassembled or installed in place

However, it is easy to cause damage to the aluminum alloy shell when using a jack, etc.

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