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Method for manufacturing gear case

A technology of a gear box body and a manufacturing method, which is applied in the field of industrial manufacturing, can solve the problems of reducing the effective area of ​​the casting, the mechanical properties of the casting, the environmental impact, etc., and achieves the effects of easy residual stress, suppression of vibration, and increased safety factor.

Active Publication Date: 2012-09-19
浙江昌亨机械集团股份有限公司
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AI Technical Summary

Problems solved by technology

Agreeing on shrinkage cavity and shrinkage porosity reduces the effective area of ​​the casting, and the shrinkage cavity is prone to stress concentration, which reduces the mechanical properties of the casting
[0005] In addition, the dioxins and furans produced in the casting process will have a great impact on the environment and cause serious pollution

Method used

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  • Method for manufacturing gear case
  • Method for manufacturing gear case
  • Method for manufacturing gear case

Examples

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Embodiment Construction

[0045] An embodiment of the manufacturing method of the gear case of the present invention will be further described below in conjunction with the accompanying drawings:

[0046] The specific operation steps of the manufacturing method of a kind of gear housing of the present invention are:

[0047] (1) Select low-carbon steel material, cut according to the size of the box, and form the components of the box, such as figure 1 As shown, it includes input housing 10 and input housing additional plate 11, bushing 12, rear end cover 13, plug seat 14, output end bearing seat 20 and output end bearing seat additional plate 21, bottom plate 22, two A triangular rib 31 and two quadrilateral ribs 32, each component maintains a cutting allowance of 3mm.

[0048] Among them, the thickness of the input end housing 10 and the output end bearing seat 20 is 4 mm, the thickness of the input end housing additional plate 11 and the output end bearing seat additional plate 21 is 2 mm, the input...

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Abstract

The invention discloses a method for manufacturing a gear case. The method include following manufacturing steps: firstly, selecting carbon steel plates for blanking to form components; secondly, subjecting the components to roughing, sheet-metal working and vibratory aging treatment; thirdly, assembling and welding the components to respectively form a case body and a case seat and welding the case body on the case seat; fourthly, subjecting the welded case body and the case seat to vibration polishing for removing stress; fifthly, cleaning the surfaces of the case body and the case seat; and finally, subjecting the case body to finishing such as boring, face cutting, drilling and tapping. The gear case manufactured by the method has the advantages of uniformity in wall thickness, freeness of internal air holes and shrinkage cavities, good mechanical performance and long service life. Compared with existing casting methods for the gear case, the method for manufacturing the gear case has the advantages that time and consumable cost of raw materials and auxiliary materials can be saved while manpower can be reduced greatly, and accordingly production efficiency is improved.

Description

technical field [0001] The invention relates to the field of industrial manufacturing, in particular to a method for manufacturing a gear case. [0002] Background technique [0003] The traditional gearbox is generally a cast iron box made by casting. The cast iron box has a complex shape and a large difference in wall thickness. Even if the more advanced step-type pouring system, blank-holding riser and cold iron are used, it is difficult to achieve satisfactory results. The thick and large parts of the gearbox case are prone to uncontrollable technical problems such as shrinkage, internal shrinkage cavities, and air bubbles, or even scrapped, which directly affects the use or service life of the gearbox. [0004] There are still some problems in the gearbox with cast iron structure, such as: the casting process is relatively complicated, and some processes are difficult to control; the uniformity and compactness of the internal structure of the casting are generally poo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B23K31/02
Inventor 黄乃亨
Owner 浙江昌亨机械集团股份有限公司
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