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Making process of gear box casing for centrifugal compressor

A technology for centrifugal compressors and gear boxes, which is applied in the manufacture of tools, components with teeth, transmission boxes, etc. It can solve problems such as clamping, high number of circulations, poor machining accuracy of split surfaces, and extended auxiliary time. Achieve high production efficiency, reduce processing costs, and improve roughness

Inactive Publication Date: 2008-11-12
WUXI COMPRESSOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems are: 1. Processing on two different machine tools, the number of times of clamping and circulation is large, and the processing process is long
2. Repeated clamping belt alignment and other processing auxiliary time prolongs
3. Poor machining accuracy of split surface
4. Medium and small CNC machine tools have limitations in processing large-size parts
5. It is necessary to have a large horizontal CNC machine tool to process the large size TM centrifugal compressor gearbox shell

Method used

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  • Making process of gear box casing for centrifugal compressor
  • Making process of gear box casing for centrifugal compressor
  • Making process of gear box casing for centrifugal compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The gear box housing of the centrifugal compressor of the present invention is mainly formed by connecting two upper and lower gear box housings with bolts. The outer dimensions of the upper and lower gearbox housings are 1687mm×1862mm×1518mm. The processing equipment is a gantry five-sided CNC machine tool for processing.

[0046] 1. The manufacturing process of the lower gear box body is as follows:

[0047] (1). Forming of blanks: The material of the lower gear box body is made of nodular cast iron with the grade of QT400-18; the following mechanical processing is carried out according to the requirements of the drawings;

[0048] (2) Marking: marking the bottom surface, bearing hole processing line;

[0049] (3) Planing: leave a margin of 2mm on the bottom of planing;

[0050] (4) The gantry type five-sided CNC machine tool is used for cutting processing: semi-precision, precision milling of the bottom surface, and drilling;

[0051] Semi-finish milling adopts a rough m...

Embodiment 2

[0081] The gear box housing of the centrifugal compressor of the present invention is mainly formed by connecting two upper and lower gear box housings with bolts. The outer dimensions of the upper and lower gearbox housings are: 1687mm×1862mm×1518mm. The processing equipment is a gantry five-sided CNC machine tool for processing.

[0082] 1. The manufacturing process of the lower gear box body is as follows:

[0083] (1). Forming of blanks: The material of the lower gear box body is made of nodular cast iron with the grade of QT-40018; the following mechanical processing shall be carried out according to the requirements of the drawings;

[0084] (2) Marking: marking the bottom surface, bearing hole processing line;

[0085] (3) Planing: The margin left on the planing bottom surface is: 2mm;

[0086] (4) The gantry type five-sided CNC machine tool is used for cutting processing: semi-precision, precision milling of the bottom surface, and drilling;

[0087] Semi-finish milling us...

Embodiment 3

[0113] The gear box housing of the centrifugal compressor of the present invention is mainly formed by connecting two upper and lower gear box housings with bolts. The outer dimensions of the upper and lower gearbox housings are: 1654mm×1462mm×1455mm. The processing equipment is a gantry five-sided CNC machine tool for processing.

[0114] 1. The manufacturing process of the lower gear box body is as follows:

[0115] (1) Blank forming: The material of the lower gear box body is selected from the grade: QT400-18 ductile iron casting; the following mechanical processing shall be carried out according to the requirements of the drawings;

[0116] (2) Marking: marking the bottom surface, bearing hole processing line;

[0117] (3) Planing: The margin left on the planing bottom surface is: 2mm;

[0118] (4) Use the gantry five-face machining center for cutting processing: semi-precision, precision milling of the bottom surface, and drilling;

[0119] Semi-finish milling adopts a rough ...

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Abstract

The present invention is machining process of gear box casing for TM type centrifugal compressor, and belongs to the field of metal machining technology. The gear box casing consists of one upper casing and one lower casing mainly. The lower casing is machined through fine milling the bottom, drilling hole, machining the combining surfaces, sides and holes, washing, oiling and other steps; the upper casing is machined through fine milling the combining surfaces, drilling holes, fine boring the bearing holes, cleaning, oiling and other steps. The present invention has simple machining process, low production cost, high machining precision and other advantages.

Description

Technical field [0001] The invention relates to a manufacturing process of a gear box housing of a centrifugal compressor, in particular to a machining process of a gear box housing of a TM type centrifugal compressor, belonging to the technical field of metal processing. Background technique [0002] In the gas compressor industry, the centrifugal compressor is a high-tech product with high technical difficulty, high manufacturing difficulty and the most promising development. For the TM type centrifugal compressor, due to the high-speed rotation of the impeller, the powerful interaction between the blades and the airflow generates pressure and kinetic energy in the airflow. The kinetic energy of the gas is converted into pressure energy in the diffuser to complete the gas compression. The TM-type centrifugal compressor gearbox housing has a unique horizontal split structure. The split planes are parallel to the axis of the main shaft, making the unit easy to assemble and mainta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P13/00B23Q15/007F16H57/02
Inventor 顾佩华刘智渭徐富明
Owner WUXI COMPRESSOR CO LTD