Split type main shaft mechanism of rotor type sand mixer

Abstract

The invention discloses a split type main shaft mechanism of a rotor type sand mixer. The mechanism comprises an upper half stand column, a lower half stand column and a rotating connector, wherein a spraying device is installed at the upper end of the upper half stand column, and the lower half stand column is arranged below the upper half stand column. The mechanism has the beneficial effects that through the design of the upper half stand column, the lower half stand column, a first column body, a second column body, a first flange and a second flange, a main body of the main shaft mechanism is of a split type structure, the main shaft structure is effectively simplified, the disassembly and assembly difficulty and the manufacturing difficulty of the main shaft mechanism are reduced, and the replacement time of the main shaft mechanism is greatly shortened; the maintenance labor intensity is reduced, and meanwhile, the manufacturing precision of the main shaft mechanism is improved, and the main shaft mechanism can be efficiently used for a long time; by arranging a transition water pipe, a rotary joint and a tungsten carbide sealing gasket, the sealing performance of the dynamic and static joint part of a water adding device of the main shaft mechanism is effectively improved, water leakage of the main shaft mechanism during water addition is avoided, and the molding sand quality is further improved.

Description

technical field [0001] The invention relates to the technical field of the main shaft of a rotor type sand mixer, in particular to a split main shaft mechanism of a rotor type sand mixer. Background technique [0002] The sand mixer is a device that uniformly mixes the components in the molding sand and effectively coats the binder on the surface of the sand grains. The sand mixer is the main equipment for casting sand processing and mixing of molding sand, and it is also the key equipment for obtaining qualified molding sand. Among them, the rotor sand mixer is often used in the sand mixer. [0003] However, the main shaft of the current rotor sand mixer mainly adopts an integrated structure, which leads to a more complicated structure of the main shaft of the rotor sand mixer and greater difficulty in production. It increases the difficulty of disassembly and assembly of the main shaft of the sand mixer, which cannot ensure the long-term efficient use of the main shaft o...

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Problems solved by technology

[0003] However, the main shaft of the current rotor sand mixer mainly adopts an integrated structure, which leads to a more complicated structure of the main shaft of the rotor sand mixer and greater difficulty in manufacturing. It increases the difficulty of disassembly and assembly of the main shaft of the sand mixer, which cannot ensure the long-term efficient use of the main shaft of the sand mixer. Secondly, the sealing of the static and dynamic joints of the water adding device on the main shaft mechanism of the current rotor type sand mixer is poor, and water leakage is prone to occur. Reduced processing quality of molding sand

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