deceleration system of the vertical roller mill

Introduction to the working principle of the drive system and deceleration system of the vertical roller mill

The vertical roller mill drive system and deceleration system are the core part of the vertical roller mill and the core of the vertical roller mill. Knowing the deceleration system and the vertical roller mill drive system can better operate the vertical roller mill. SBM Heavy Machinery Co., Ltd. When designing the vertical roller mill, we have to design various systems, including the determination of the transmission system and the deceleration system. This article will introduce you in detail:

First, vertical roller mill deceleration system

The reduction ratio of the vertical roller mill is the ratio of the motor speed to the initial fixed crusher speed, that is, i = motor speed / initial break roller speed. The deceleration system is decelerated by two poles. Firstly, it is driven by a belt, and then the power is transmitted to the horizontal secondary gear reduction box by the large pulley. The output shaft of the rear reducer transmits the power to the crushing roller, and the crushing roller performs the crushing movement. . This achieves the purpose of the vertical roller mill deceleration to determine the deceleration system.


Second, vertical roller mill drive system

To determine the transmission system of the vertical roller mill, firstly determine the total transmission ratio, and then make a reasonable distribution of the transmission ratio. In general, it must achieve the compact structure of the transmission system, light weight, low cost and good lubrication conditions. The vertical roller mill has three-stage transmission, which is divided into a first-stage belt drive and a two-stage spur gear transmission. The transmission ratio of the belt drive should be controlled within 1.5-2.5, and the unfolded gear reducer can be used. In any case, strict control of the transmission ratio of the drives at all levels is required. The gear ratio distribution should satisfy the formula i1=(1.3-1.4)i2, where i1 is the high speed gear ratio and i2 is the low speed gear ratio. In the calculation of the transmission system motion parameters, we can assume that the motor shaft is the first axis, so that each axis can be named two-axis, three-axis and four-axis from the high-speed shaft of the reducer, and the main drive shaft is the fifth. The shaft, from the grinding roller shaft, is the sixth axis, and then the rotational speed, power and shaft torque of each shaft are calculated separately. After the transmission system was determined. When determining the vertical roller mill deceleration and transmission system, we must consider all aspects of the problem, as much as possible to make the system structure simple, fewer points of failure and improve the automation of ultra-fine grinding.

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