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Machining process for machining rotating shaft of steam turbine generator using boring machine

A technology of steam turbine generator and processing technology, which is applied in the field of steam turbines, can solve the problems of high cost and unfavorable promotion and use by small and medium-sized enterprises, and achieve the effects of reduced processing costs, flexible production, and reduced production costs

Pending Publication Date: 2019-01-15
绵竹萱铭机械有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that most of the existing steam turbine generator shafts are processed by proprietary equipment for steam turbine generator shafts, which is expensive and unfavorable for popularization and use by some small and medium-sized enterprises, the present invention provides a method for processing steam turbine generator shafts with a boring machine. The processing technology; The technical scheme that the present invention adopts is as follows:

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A machining process for machining a turbogenerator shaft by using a boring machine, comprising the following process steps:

[0031] The first step: boring machine pretreatment

[0032] According to the size of the raw material to be processed, a bearing seat and an indexing plate are equipped on the boring machine, and a pin seat and a positioning pin are equipped according to the pin hole size of the indexing plate; the raw material is installed on the bearing seat of the boring machine, locked and Alignment based on the y-axis of the boring machine, control the horizontal direction of the raw material within 0.02mm, and alignment based on the x-axis of the boring machine, control the direction of the side generatrix of the raw material within 0.02mm;

[0033] Process 12 process turning holes at the position of the process head of the raw material, put the index plate on the gas end process head of the raw material and ensure that the concentricity between the index p...

Embodiment 2

[0052] A machining process for machining a turbogenerator shaft by using a boring machine, comprising the following process steps:

[0053] The first step: boring machine pretreatment

[0054] According to the size of the raw material to be processed, a bearing seat and an indexing plate are equipped on the boring machine, and a pin seat and a positioning pin are equipped according to the pin hole size of the indexing plate; the raw material is installed on the bearing seat of the boring machine, locked and Alignment based on the y-axis of the boring machine, control the horizontal direction of the raw material within -0.02mm, and alignment based on the x-axis of the boring machine, control the direction of the side generatrix of the raw material within 0.02mm;

[0055] Process 8 process turning holes at the position of the process head of the raw material, put the index plate on the gas end process head of the raw material and ensure that the concentricity between the index p...

Embodiment 3

[0074] A machining process for machining a turbogenerator shaft by using a boring machine, comprising the following process steps:

[0075] The first step: boring machine pretreatment

[0076] According to the size of the raw material to be processed, a bearing seat and an indexing plate are equipped on the boring machine, and a pin seat and a positioning pin are equipped according to the pin hole size of the indexing plate; the raw material is installed on the bearing seat of the boring machine, locked and Alignment based on the y-axis of the boring machine, control the horizontal direction of the raw material within 0.01mm, and alignment based on the x-axis of the boring machine, control the direction of the side generatrix of the raw material within 0.02mm;

[0077] Process 10 process turning holes at the position of the process head of the raw material, put the index plate on the gas end process head of the raw material and ensure that the concentricity between the index p...

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Abstract

The invention discloses a machining process for machining a rotating shaft of a steam turbine generator using a boring machine, relates to the technical field of steam turbines, and is used for solving the problems that the existing steam turbine power generating shafts are mostly machined by using proprietary equipment of the steam turbine generating shafts, the cost is high and the promotion anduse are unfavourable for some small and medium-sized enterprises. The machining process includes a first step of pretreatment using a boring machine; a second step of rough machining; a third step ofsemi-finishing; a fourth step of finishing; a fifth step of dovetail groove machining; a sixth step of lead slot machining; and a seventh step of grinding. After the completion of the finishing of various dimensions of the body, a finished product of the steam turbine power generating shaft is obtained, the process head material is cut off, and the main cleaning is performed for each machining position.

Description

technical field [0001] The invention belongs to the technical field of steam turbines, and in particular relates to a processing technology for processing a rotating shaft of a steam turbine generator by using a boring machine. Background technique [0002] A steam turbine is a rotating machine powered by steam and converts the thermal energy of the steam into mechanical work. It is the most widely used prime mover in modern thermal power plants. The steam turbine has the advantages of high power, high efficiency and long life. [0003] The steam turbine generating shaft is an essential part of the steam turbine. Most of the existing steam turbine generating shafts are processed by the special equipment of the steam turbine generating shaft. The cost is high, which is not conducive to the popularization and use of some small and medium-sized enterprises. Contents of the invention [0004] In order to solve the problem that most of the existing steam turbine generator shaf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/14
CPCB23P15/14
Inventor 罗先军
Owner 绵竹萱铭机械有限责任公司