Repeated cylinder sleeve pressing technology of cylinder block

A technology of cylinder pressing and weight, applied in metal processing, manufacturing tools, metal processing equipment, etc., can solve problems such as easy generation of gaps, cylinder liner rise, engine overheating, etc., and achieve the effect of solving engine overheating

Inactive Publication Date: 2012-01-11
HARBIN DONGAN AUTO ENGINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the cylinder liner of the cylinder block adopts a one-time press-fitting process. The process of cylinder bore processing may easily cause the rise of the cylinder liner, and the gap between the joint surface of the cylinder liner and the cylinder block may easily occur. It is prone to sinking, causing engine overheating and other failures

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Press-fit cylinder liner pressure 5bar-boring cylinder bore-repeated cylinder liner pressure 3 tons-honing cylinder bore-milling top surface-press-fit cylinder liner pressure 5bar-boring cylinder hole-repeat cylinder liner pressure 3 tons- Milling top surface - honing cylinder bore.

Embodiment 2

[0013] Press-fit cylinder liner pressure 12bar-boring cylinder bore-repeated cylinder liner pressure 8 tons-honing cylinder bore-milling top surface-press-fit cylinder liner pressure 12bar-boring cylinder hole-repeat cylinder liner pressure 8 tons- Milling top surface - honing cylinder bore.

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PUM

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Abstract

The invention relates to a repeated cylinder sleeve pressing technology of a cylinder block, which comprises the steps of cylinder sleeve pressing, cylinder hole boring, repeated cylinder sleeve pressing, cylinder hole honing, top surface milling, cylinder sleeve pressing, cylinder hole boring, repeated cylinder sleeve pressing, top surface milling and cylinder hole honing. By adopting the repeated cylinder sleeve pressing technology of the cylinder block, clearances generated between faying surfaces of the cylinder sleeve and the cylinder block during processing a cylinder hole are eliminated, and faults such as engine overheat, and the like, which occur in outer fields and are caused by the sinking of the cylinder sleeve of the cylinder block of a gasoline engine, are thoroughly solved.

Description

technical field [0001] The invention relates to a processing technology of an engine cylinder block inlaid with a cylinder liner. Background technique [0002] At present, the cylinder liner of the cylinder block adopts a one-time press-fitting process. The process of cylinder bore processing may easily cause the rise of the cylinder liner, and the gap between the joint surface of the cylinder liner and the cylinder block may easily occur. It is prone to sinking, causing engine overheating and other failures. Contents of the invention [0003] The object of the present invention is to overcome the disadvantages of the above-mentioned technologies, and provide a process for repeatedly pressing the liner of the cylinder block, which eliminates the gap between the cylinder liner and the cylinder block joint surface. [0004] In order to achieve the above-mentioned purpose, the technical scheme adopted in the present invention is: press-fit cylinder liner-boring cylinder hole...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B23P19/02
Inventor 冯立华刘明于启龙郭志刚于小飞秦云杰李华付卫芳王秋平王永刚
Owner HARBIN DONGAN AUTO ENGINE
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