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Manufacturing technology of thin-wall high-lead bearing brush for main engine of ship

A technology of ship main engine and manufacturing process, applied in the field of ship parts, can solve the problems of impurities in lubricating oil, damage to sliding bearings, abnormal viscosity, etc., and achieve the effects of high precision, flexible adjustment, and good auxiliary function.

Inactive Publication Date: 2019-05-21
中设精工制造江苏有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If there is direct friction between the bearing bush and the shaft due to poor lubrication, the friction will generate a high temperature. Although the bearing bush is made of a special high-temperature resistant alloy material, the high temperature generated by direct friction is still enough to burn the bearing bush.
Bearing pads may also burn due to factors such as excessive load, high temperature, impurities in lubricating oil, or abnormal viscosity.
The sliding bearing is damaged after burning the tile

Method used

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  • Manufacturing technology of thin-wall high-lead bearing brush for main engine of ship

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention is carried out according to the following steps:

[0015] 1) Fine-grinding the bearing bush after enamelling. When machining the bearing bush, the outer circle, inner circle, one end face and chamfer are processed with the axis of the cylinder as the positioning reference, and then the other end face is machined based on the processed end face. , and then machine the groove on the inner surface;

[0016] 2) When machining the outermost slot, the end face is used as the benchmark, and the milling cutter is used for direct milling. After the processing is completed, the second slot is processed at the top edge of the processed slot, and so on until the end of processing.

[0017] Further, when processing the inner circle, the following auxiliary tooling is used, and the structural form of the auxiliary tooling is: sleeved on the outer surface of the bearing bush, and the inner contour of the tooling and the outer surface contour of the bearing bush a...

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Abstract

The invention relates to a manufacturing technology of a thin-wall high-lead bearing brush for a main engine of a ship. The technology comprises the following steps: 1) finely grinding a tinned bearing bush; processing an outer circle, an inner circle, one end surface and a chamfer by treating an axis of a circular barrel as a positioning reference during processing the bearing bush; processing the other end surface based on the processed end surface as the reference; an then processing a groove in the inner surface; and 2) directly milling through a forming milling tool by treating the end surface as the reference during processing the outermost groove; processing a second groove by treating the top edge of the processed groove as the reference after processing; and repeating the operation until processing is finished. The technology is reasonable in technology; and the processed bearing bush is high in quality.

Description

technical field [0001] The invention relates to a manufacturing process of a thin-walled and high-lead bearing bush for a marine main engine, and belongs to the technical field of marine parts. Background technique [0002] On the eve of the liberation of New China in 1949, there were only 20 shipbuilding and repairing enterprises with less than 20,000 employees and an annual shipbuilding output of about 6,000 tons. With the reform and opening up, China's shipbuilding industry opened its doors and participated in the competition in the international market. Shipbuilding technology and shipbuilding The capacity has been greatly improved. By 1998, the national steel ship output has reached more than 5 million tons, and the export output has reached more than 2 million tons. Since 1993, my country's total shipbuilding tonnage has ranked third in the world for ten consecutive years. In 2003, China's shipbuilding output exceeded 6 million tons, accounting for 11.2% of the world...

Claims

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Application Information

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IPC IPC(8): B23P15/00F16C33/02
Inventor 何叶锋
Owner 中设精工制造江苏有限公司
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