A vertical mill reducer

Abstract

The invention discloses a vertical mill speed reducer. The vertical mill speed reducer comprises a box, hydrostatic bearings arranged in the box, and an output flange arranged on the upper portion of the box. At least two hydrostatic bearings are arranged in the box in the circumferential direction and are each provided with a hoisting ring used for being connected with a traction device. Fixed parts used for being connected with the traction devices are arranged in the middle of the box. The output flange is provided with through holes corresponding to the hydrostatic bearings, and the area of the through holes is larger than the section area of the hydrostatic bearings. The outer circumference of the box is provided with observation windows corresponding to the hydrostatic bearings in position. The hydrostatic bearings, the observation windows and the fixed parts are located on the same straight line. Through the vertical mill speed reducer, on-line maintenance performance of the hydrostatic bearings of the ultra-large vertical mill speed reducer is achieved, the condition that after a fault occurs to the hydrostatic bearings, the vertical mill speed reducer has to be pulled out of the lower portion of a mill so as to maintain and replace the hydrostatic bearings is avoided, thus a large amount of maintenance time is saved, a large amount of maintenance cost is reduced, and the security risk occurring when the speed reducer is pulled out is avoided completely.

Description

technical field [0001] The invention relates to the technical field of static pressure design, and more specifically relates to a vertical mill reducer. Background technique [0002] Due to energy saving and emission reduction, some cement production lines with small output and high energy consumption have been eliminated. At this stage, the new cement production line is developing towards super large scale. Due to the increasing output of super-large vertical mill reducers, their axial dynamic and static loads are also increasing. Since the axial dynamic and static loads are borne by the static pressure bearings, the static pressure bearings are also getting larger and larger. [0003] At this stage, the raw materials and slag vertical mills in the building materials industry are developing towards super-large production lines, and their power is getting bigger and bigger, and the corresponding vertical mill reducers are also getting bigger and bigger. During the use of t...

AI Technical Summary

Problems solved by technology

During the use of the traditional vertical mill reducer, after the hydrostatic bearing is damaged, it cannot be replaced and repaired online, and the reducer must be pulled out from the lower part of the mill, which greatly increases the maintenance time and cost; The reducer is large in size and weight, and there is a safety risk in the process of pulling it out from the lower part of the mill

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