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Borehole allocation method on large marine shafting ground

A marine shafting and boring technology, which is applied in the field of hole matching and boring, can solve the problems of not being able to fully meet the needs of processing, long-term occupation of machine tools, and overall length, so as to avoid digging, improve production efficiency, and reduce tool loss Effect

Active Publication Date: 2009-03-25
武汉重工铸锻有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the current processing technology requirements and the number of products can not fully meet the current processing needs
In view of a series of problems such as high technical requirements, various models, super long overall length, low efficiency and long-term occupation of machine tools, it is necessary to propose a new boring method

Method used

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  • Borehole allocation method on large marine shafting ground
  • Borehole allocation method on large marine shafting ground
  • Borehole allocation method on large marine shafting ground

Examples

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Embodiment Construction

[0015] With reference to Fig. 1, concrete steps of the present invention are:

[0016] 1) First, drill and bore the flange holes of the propeller shaft 8 and the intermediate shaft 7 on a CNC boring and milling machine to a difference of 3-4 mm from the finish, and place four adjustable brackets 1 on a flat field according to the actual position of the bearing position ;

[0017] 2) Adjustable bracket 1 is covered with a cowhide pad, and lubricated with an appropriate amount of engine oil, and the propeller shaft 8 is hoisted onto the adjustable bracket 1 to prevent the surface of the finishing shaft from being scratched; use a spirit level to adjust the level, and hoist the intermediate shaft 7 to the adjustable bracket 1, make the intermediate shaft 7 stick to the two flanges of the propeller shaft 8, adjust the positions of the two shafts so that the two flanges are close to each other, and use the dial indicator to detect the upper busbar and the upper busbar of the propel...

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Abstract

The invention relates to a large-sized marine shafting ground boring hole matching method, in particular to the boring hole matching method of a hole, a middle shaft and a propeller shaft are adjusted by using an adjustable bracket to make two flanges be mutually pasted, the centres are in a straight line, and the adjustment is controlled by using a knife-edge ruler. The middle shaft and the propeller shaft are bolted by technology bolts after adjustment to avoid dislocation; then a double haversian sleeve is selected according to the size of a shaft body of the middle shaft to be connected with a boring hole machine; and then an ideal boring rod is selected according to the size of the flange hole, an oil circuit is connected, and the boring hole matching work starts. When the invention is used to work, because the boring hole machine and the middle shaft are connected together through the double haversian sleeve, the stability is high; when a movable knife is forced, the shaft and the boring hole machine are resonated, the knife digging is avoided, the knife wastage is reduced, the processing quality of products is ensured, and the technique size requirement is completely satisfied; and because workpieces are static, the boring hole is rotated, the number of holes which can be processed is larger, the production efficiency can be greatly enhanced. The large-sized marine shafting ground boring hole matching method is applicable to precision processing boring matching of the shafting flange hole with different specifications.

Description

technical field [0001] The invention relates to a hole matching boring method. Background technique [0002] In recent years, with the rapid development of the world's shipbuilding industry, the requirements for marine accessories are getting higher and higher. Marine shafting (including: propeller shaft, intermediate shaft, etc.) is an important part of marine accessories, and its processing progress and quality will directly affect the project progress and quality of use of new ships. The method of locking the flange with bolts is the main way to connect the shafts. The flange holes of the connected shafts must be drilled and bored after the two shafts are adjusted to be coaxial and tight. There is a certain amount of interference fit between the process bolts and the flange holes, so as to ensure that the connection coaxiality of the shaft system remains unchanged, and each connection bolt can evenly bear the shear force, so as to ensure the good operation of the shaft s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B35/00B23B41/00
Inventor 王军李勇刘峰桂志刚李之国朱焰芳俞海燕卢补青
Owner 武汉重工铸锻有限责任公司
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