Water cooling oil-free spindle nose sealing structure for horizontal type concrete stirrer

Abstract

The invention relates to a water cooling oil-free spindle nose sealing structure for a horizontal type concrete stirrer. The water cooling oil-free spindle nose sealing structure comprises at least one oil-free spindle nose, a water supply device, a water control pipeline and an annular water cooling channel arranged on the oil-free spindle nose. The oil-free spindle nose comprises a rotating shaft, a rotary protective ring, a sealing assembly, a spindle nose shell and a reinforcing plate, wherein the rotating shaft stretches into a stirrer chamber, the rotary protective ring is arranged on the rotating shaft, the sealing assembly is arranged at the front end of the rotary protective ring, and the spindle nose shell is arranged on the outer ring of the sealing assembly. According to the water cooling oil-free spindle nose sealing structure for the horizontal type concrete stirrer, by the adoption of the water cooling way of the annular water cooling channel, the temperature which rises due to the fact that heat is generated by rotary friction between a static sealing ring and a rotary sealing ring is effectively lowered, the service life of the oil-free spindle nose is prolonged, water cooling of the annular water cooling channel plays a role in washing the rotary protective ring, the sealing assembly, the reinforcing plate, a first spindle nose shell and a press seal, and the problem that the internal structure of the spindle nose is damaged after scale is formed on slurry; due to the fact that no lubricating grease is needed, the stirred concrete is not polluted, and the concrete quality is ensured.

Description

technical field [0001] The invention relates to the field of mixer equipment, in particular to a water-cooled oil-free shaft head sealing structure for a horizontal concrete mixer. Background technique [0002] With the rapid development of construction, high-speed rail, hydropower and other industries, concrete mixing stations are blooming everywhere, so the demand for horizontal concrete mixers is also increasing. The performance of the shaft head seal structure is the key technology of the horizontal concrete mixer. In order to ensure the shaft head seal performance, the shaft head seal structure usually needs to be lubricated with grease to ensure the sealing effect and the service life of the shaft head seal. Usually there is an oil-tight structure, which will cause grease to leak into the concrete, affecting the quality of the concrete, and it is not environmentally friendly. The seal structure without grease is usually a steel seal that is prone to high temperature, ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in order to overcome the above-mentioned problems, a water-cooled oil-free shaft head sealing structure for horizontal concrete mixers is provided, and the structure is a shaft head sealing system that does not need to use grease , using water for lubrication and cooling, this method will not cause the problem of grease contamination of concrete, but also can effectively reduce the temperature of the shaft head and clean the shaft head, protect the sealing components and increase the service life

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