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A method for manufacturing a large modulus cast steel gear ring

A manufacturing method and technology for a large ring gear, which are applied in the field of machining, can solve the problems of difficulty in controlling the deformation of the large ring gear, large processing volume of blanks and tooth profiles, and low processing efficiency, so as to reduce manufacturing costs, improve processing efficiency, and improve The effect of processing efficiency

Active Publication Date: 2021-06-08
甘肃酒钢集团西部重工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the manufacture of large-module cast steel girth gears, there are problems such as large amount of rough and tooth profile processing, difficulty in controlling the deformation of the girth gear, and low processing efficiency, resulting in high manufacturing costs

Method used

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  • A method for manufacturing a large modulus cast steel gear ring
  • A method for manufacturing a large modulus cast steel gear ring
  • A method for manufacturing a large modulus cast steel gear ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of modulus of the present invention is 40mm, and the manufacturing method of the cast steel girth gear that diameter is 5440mm, specifically comprises the following steps:

[0035] Step 1: Use the CAPP system to compile the blank manufacturing process, and through the conventional "modeling→smelting→pouring→cleaning→checking the blank→heat treatment" process to produce a qualified semi-gear blank with casting reinforcement; in order to compensate for the shrinkage of the casting, To prevent shrinkage cavities and porosity defects in castings, set 6 common risers with a size of 450×540×700mm during molding;

[0036] Step 2: Machining the joint surface and the joint hole of the large gear ring on the floor boring machine, the joint surface is left 50mm, the joint hole is left 30mm, and the large gear ring is closed by the reaming hole bolt;

[0037] Step 3: Align the center of the large ring gear and the rotary table on the floor boring machine, use a disc milling ...

Embodiment 2

[0050] A kind of modulus of the present invention is 32mm, and the manufacturing method of the cast steel girth gear that diameter is 4736mm, specifically comprises the following steps:

[0051] Step 1: Use the CAPP system to compile the blank manufacturing process, and produce qualified casting blanks through the conventional "modeling → smelting → pouring → cleaning → inspection blank → heat treatment" process to produce qualified casting semi-gear blanks with casting bars ;In order to compensate the shrinkage of the casting and prevent the casting from shrinkage cavity and shrinkage defects, 6 common risers with a size of 300×450×500mm are set up during molding;

[0052] Step 2: Machining the joint surface and the joint hole of the large gear ring on the floor boring machine, the joint surface is left 40mm, the joint hole is 14mm, and the large gear ring is closed by the reaming hole bolt;

[0053] Step 3: The operation is the same as that in Example 1, and the amount of th...

Embodiment 3

[0063] A kind of modulus of the present invention is 22mm, and the manufacturing method of the cast steel girth gear of 4620mm in diameter specifically comprises the following steps:

[0064] Step 1: Use the CAPP system to compile the blank manufacturing process, and through the conventional "modeling→smelting→pouring→cleaning→checking the blank→heat treatment" process to produce a qualified semi-gear blank with casting reinforcement; in order to compensate for the shrinkage of the casting, To prevent shrinkage cavities and porosity defects in castings, set 5 thermal insulation and heating risers with a size of 450×540×650mm during molding;

[0065] Step 2: Machining the joint surface and the joint hole of the large gear ring on the floor boring machine, the joint surface is left to be 30mm, the joint hole is left to be 20mm, and the large gear ring is closed by the reaming hole bolt;

[0066] Step 3: The operation is the same as that in Example 1, and the amount of the outer ...

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Abstract

The invention discloses a method for manufacturing a large-module cast steel gear ring, which belongs to the technical field of mechanical processing. This method solves the problem of large amount of blank and tooth profile processing in the manufacture of the existing large ring gear by improving the processing technology of the casting blank and tooth profile, and prevents the The deformation of the large ring gear during long-term storage, transportation and hoisting. The manufacturing method of the invention is convenient and feasible. It is verified by practice that the processing efficiency is greatly improved and the manufacturing cost is reduced under the premise of ensuring the quality and precision of the large ring gear. The tooth shape processing efficiency has been increased by more than 2 times, and the manufacturing cost of the large ring gear has been reduced by about 20%. When the girth gear manufactured by the method of the invention is used in key equipment such as ball mills, mixers, drying kilns, etc., the equipment runs smoothly without any gear transmission failure.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a method for manufacturing a large-module cast steel ring gear. Background technique [0002] In recent years, the competition in the machinery manufacturing industry has become more and more fierce. Reducing manufacturing costs and improving processing efficiency will become the core for enterprises to strengthen their competitive advantages. [0003] Gear ring transmission is widely used in cement, metallurgy and other industries. The large ring gear is the main force-bearing transmission part of rotary kiln, mixer, granulator, ball mill and other equipment. The modulus of the large ring gear is ≥20mm, the diameter is generally between 3-6m, and the material is generally ZG200-400, ZG230-450, ZG270-500, ZG310-570 or ZG340-640. In the manufacture of large-modulus cast steel girth gears, there are problems such as a large amount of blank and tooth profi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/14
CPCB23P15/14
Inventor 程宝军王玉成张燕强寇建昌刘建彪张宏瑞赵金鹏
Owner 甘肃酒钢集团西部重工股份有限公司