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Compressor impeller and pinion shaft connecting structure and machining method thereof

A compressor impeller and pinion shaft technology, applied in the field of compressors, can solve the problems of difficult installation, low assembly precision, rotor damage, etc., and achieve the effects of easy inspection and maintenance, simple assembly process, and large transmission torque

Inactive Publication Date: 2017-03-29
SHENYANG BLOWER WORKS GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) The installation is difficult and the assembly accuracy is low
[0004] (2) During the installation process, it is easy to grind the end face of the flange, causing damage to the rotor
[0005] (3) After installation, the impeller and the flange are prone to relative displacement during operation, which increases the unevenness of the rotor and is not conducive to stable operation

Method used

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  • Compressor impeller and pinion shaft connecting structure and machining method thereof
  • Compressor impeller and pinion shaft connecting structure and machining method thereof
  • Compressor impeller and pinion shaft connecting structure and machining method thereof

Examples

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Effect test

Embodiment Construction

[0031] see figure 1 , A compressor impeller and pinion shaft connection structure provided by an embodiment of the present invention includes an impeller 1 and a pinion shaft 2 cooperating with the impeller 1 . Among them, the tail end of the impeller 1 disc and the end face of the pinion shaft head are provided with end teeth 6 that cooperate with each other, a through hole 7 is provided at the center line of the impeller 1, a threaded hole 8 is provided at the center line of the pinion shaft 2, and the tension bolt 3 The impeller 1 is connected with the pinion shaft 2 through the through hole 7 and screwed in the threaded hole 8 .

[0032] In order to start the positioning function when the impeller 1 and the pinion shaft 2 are connected, the tail end of the impeller 1 disc is provided with a first positioning pin hole, and the end face of the pinion shaft 2 shaft head is provided with a second positioning pin hole corresponding to the position of the first positioning pin h...

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PUM

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Abstract

The invention discloses a compressor impeller and pinion shaft connecting structure. The compressor impeller and pinion shaft connecting structure comprises an impeller and a pinion shaft. The tail end of an impeller disc of the impeller and the end face, matched with the impeller, of a shaft head of the pinion shaft are provided with end teeth matched with each other. A through hole is formed in the center line of the impeller. A threaded hole is formed in the center line of the pinion shaft. A stretching bolt penetrates the through hole and is connected into the threaded hole for connecting the impeller and the pinion shaft. The compressor impeller and pinion shaft connecting structure is easy to assemble, high in assembly precision and free of relative displacement.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a connection structure between a compressor impeller and a pinion shaft and a processing method thereof. Background technique [0002] The impeller is the key component of the assembled centrifugal compressor, and it is the only element in the compressor that does work on the airflow. The impeller of the assembled compressor is in the form of a cantilever, and the impeller is connected to the pinion shaft, and the large gear is driven by the prime mover, and the large gear is linked to drive the pinion shaft of the impeller to perform work. The existing connection method between the impeller and the pinion shaft is a flange connection, and the impeller is tightened with the pinion shaft by bolts, so that the flange contact surface of the impeller and the pinion shaft generates friction during operation, so that the friction To avoid possible relative displacement of the flan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/26B23P15/00
CPCB23P15/00F04D29/266F16D1/076
Inventor 杜崇洋金鑫张鹏飞汪创华戴兴陈永峰
Owner SHENYANG BLOWER WORKS GROUP CORP
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