Processing method of power senary shunting rotary frame of large-scale vertical mill reducer

A processing method and technology of reducer, applied in the field of mill reducer, can solve the problem of difficult processing of porous holes, achieve the effects of low noise, small tolerance of shape and position, and avoid repeated repair work

Inactive Publication Date: 2010-10-06
CITIC HEAVY INDUSTRIES CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to meet the requirements of high power and small volume, the second type of structure is often used. Most planetary turrets adopt the form of power three or four shunts; the porous system of planetary turrets with three or more power shunts is difficult to process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0041] The processing of the six-splitting turret of the secondary planetary power of the MZL370 vertical mill reducer:

[0042] 1. The main parameters and requirements of the example:

[0043] Drawing number: N502-48, part name: planetary turret, material: ZG42CrMo. Requirements are as follows:

[0044] 1) The dimensional accuracy of the six planetary holes relative to the center of rotation is grade 4, and the dimensional accuracy of the center distance between the planetary holes is grade 4.

[0045] 2) The shape and position accuracy of each planetary hole relative to the center of rotation and between each planetary hole is 4-6 grades.

[0046] 3) The mating surface roughness of relative movement is Ra0.4.

[0047] Key points of process technology:

[0048] 1. Choose ordinary C5225 lathe and T6216 boring machine to rough each part of the parts, and optimize the margin between processes at the same time. The purpose is to ensure the maximum amount of blank removal under...

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PUM

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Abstract

The invention discloses a processing method of a power senary shunting rotary frame of a large-scale vertical mill reducer. A power senary shunting rotary frame with the porous system and parallel hole system processing accuracy standard of DIN3961 10a27 and the surface roughness of RaO.4 is adopted in the method. The method comprises the processes of rough finishing, heat treatment, multi-procedure semi-finishing, simultation processing, fine finishing and finishing. The method is a novel processing technology of a high precision porous system workpiece, which combines an ordinary machine tool with a precision numerical control machine, combines a traditional technological method with a new technological method, i.e. a computer simulation technology, combines an ordinary technological process with a special technological process, and has the advantages of less geometric tolerance, high processing accuracy, uniform planet hole distribution and low noise after assembly.

Description

technical field [0001] The invention relates to the technical field of mill reducers, in particular to a large-scale vertical mill reducer power six-splitting turret processing method suitable for grinding cement, coal and other industrial raw materials such as construction, chemical industry and ceramics. Background technique [0002] At present, the vertical mill is used for grinding cement, coal and other industrial raw materials such as construction, chemical industry and ceramics. Series of advantages, it is the first choice equipment in the world and at home. The vertical mill reducer is the key core transmission equipment of the vertical mill system. Due to the extremely harsh working conditions of the reducer, it is required to operate under the condition of continuous shock, vibration and overload, and the service life is required to be 15 years. Above, the reliability requirements are particularly high, therefore, the use of vertical mills puts forward higher requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
Inventor 刘成王智
Owner CITIC HEAVY INDUSTRIES CO LTD
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