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Coal mill gear deviation adjusting method

A coal mill and gear technology, applied in metal processing, grain processing, metal processing equipment and other directions, can solve the problems of low deviation adjustment accuracy, long deviation adjustment time, and increased deviation adjustment time, so as to achieve high deviation adjustment accuracy and correct deviation. short time effect

Pending Publication Date: 2021-12-10
GUIZHOU ELECTRIC POWER DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the problem with the above deviation adjustment method is: the deformation of the coal mill gear often occurs during the deviation adjustment process, and the horizontal diameter of the coal mill gear will become larger after deviation adjustment according to this method. This kind of deformation introduces variables into the deviation adjustment results. First, it makes the deviation adjustment accuracy too low. The number of times increases, which leads to an increase in the adjustment time. According to actual experience, it takes up to half a month to complete a coal mill gear adjustment
In summary, the existing technology has the problems of low precision and long adjustment time for the gear of the coal mill

Method used

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  • Coal mill gear deviation adjusting method
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Experimental program
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Effect test

Embodiment 1

[0037] Implementation Example 1: Reference figure 2 , a coal mill gear deviation adjustment method, comprising the following steps:

[0038] S01, divide the circumference of the coal mill gear 1 into 8 equal parts to obtain 8 equal parts 2;

[0039] S02. Set up a range finder, so that the measurement direction of the range finder passes through the center of the coal mill gear 1, the range finder is set outside the outer side of the coal mill gear 1, and the range finder measures the range finder to the coal mill gear 1 For the distance of the outer surface, turn the gear 1 of the coal mill and measure the value of the 8 equal points 2 through the range finder, and the measured value of the 8 equal points 2 of the range finder is d i , where i is a positive integer from 1 to 8;

[0040] S03, calculate the average value of the measured values ​​at 8 equally divided points 2 by mean Calculate the deviation value for each point

[0041] The method also includes the step...

Embodiment 2

[0050] Example 2, the contact points between the three jacks 4 and the gear 1 of the coal mill in the step S04 are all equal points 2 .

[0051] The above-mentioned technical solutions in the embodiments of the present application have at least the following technical effects or advantages:

[0052] The direct contact with the equalization point 2 makes the growth amount of the jack 4 directly correspond to the measured value of the micrometer, which is convenient for control.

Embodiment 3

[0053] Example 3, in the step S04, the three dial gauges 5 are in contact with the outer surface of the gear 1 of the coal mill.

[0054] The above-mentioned technical solutions in the embodiments of the present application have at least the following technical effects or advantages:

[0055] Avoid being on the same side as jack 4 to avoid the influence of jack 4.

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Abstract

The invention discloses a coal mill gear deviation adjusting method. The coal mill gear deviation adjusting method comprises the following steps that S04, a coal mill gear is rotated, and one equal division point is adjusted to the highest point; S05, three jacks are installed on the inner side face of the upper half portion of the coal mill gear, and three dial indicators are installed on three equal division points of the upper half portion of the coal mill gear correspondingly; S06, the three dial indicators are subjected to zero setting, and all bolts for fixing the coal mill gear are unscrewed; S07, the three jacks are adjusted to enable the coal mill gear to deform, and the measurement displacement of the three dial indicators is equal to the eccentric value of the corresponding equal division point; S08, all the bolts for fixing the coal mill gear are screwed; and S09, the coal mill gear is rotated by 180 degrees, and the steps S05-S08 are repeated to complete correction of the whole coal mill gear. The problems that in the prior art, the coal mill gear deviation adjusting precision is low, and the deviation adjusting time is long are solved.

Description

technical field [0001] The invention relates to a gear deviation adjustment method of a coal mill, belonging to the technical field of gear deviation adjustment of a coal mill. Background technique [0002] The ideal situation for coal mill gear installation is that the gear is a perfect circle, and the distance from the gear peripheral surface to the gear center is the same. Therefore, in order to ensure that the distance from the gear to the center of the coal mill gear peripheral surface is the same after installation, it is necessary to Adjust the deviation of the coal mill gear at the same time. [0003] refer to figure 1 , the existing adjustment method is as follows: [0004] S01, divide the circumference of the coal mill gear 1-1 into 8 equal parts to obtain 8 equal parts 1-2; [0005] S02. Set up the first dial indicator so that the measurement direction of the first dial indicator passes through the center of the coal mill gear 1-1, the first dial indicator meas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P19/10B02C23/00
CPCB23P19/10B02C23/00
Inventor 李邱林张浩铭李小海李亚鹏李钟徐一湄陶思宇王韵李超
Owner GUIZHOU ELECTRIC POWER DESIGN INST