Centered torque transmission locking combined mechanism of multi-stage high-speed turbine

A technology of steam turbine and tight combination, which is applied in the direction of machines/engines, mechanical equipment, engine components, etc., can solve problems such as failure, unsuitable pins and keys, etc., and achieve the effects of long life, simple assembly, and reasonable function distribution

Inactive Publication Date: 2017-08-08
SHENZHEN WISDOM ENERGY TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The multi-stage high-speed steam turbine uses pin key structure in many places, which will fail due to plastic deformation of the material during long-term operation, and the pin key is not suitable for this structure at high speed

Method used

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  • Centered torque transmission locking combined mechanism of multi-stage high-speed turbine
  • Centered torque transmission locking combined mechanism of multi-stage high-speed turbine
  • Centered torque transmission locking combined mechanism of multi-stage high-speed turbine

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Embodiment Construction

[0021] Before describing the embodiments in detail, it should be understood that the present invention is not limited to the detailed structures or arrangements of elements described herein below or in the accompanying drawings. The present invention can be implemented in other ways. Also, it should be understood that the phraseology and terminology used herein are for descriptive purposes only and should not be interpreted as limiting. The terms "including", "comprising", "having" and similar expressions used herein are meant to include the items listed thereafter, their equivalents and other additional items. In particular, when "a certain element" is described, the present invention does not limit the number of the element to one, but may also include a plurality.

[0022] like Figure 1-3 As shown, the centering transmission torque locking combination mechanism 10 of a multi-stage high-speed steam turbine according to an embodiment of the present invention includes a rot...

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Abstract

A centered torque transmission locking combined mechanism of a multi-stage high-speed turbine comprises a rotary shaft and a plurality of stages of impellers installed on the rotary shaft. The multiple stages of impellers are in transmission connection with the rotary shaft so as to drive the rotary shaft to rotate. The multiple stages of impellers are engaged through end teeth so that transmission connection can be achieved. Locking nuts are arranged at the two ends of the multiple stages of impellers so as to apply pretightening force to the multiple stages of impellers. The centered torque transmission locking combined mechanism has the advantages that the efficiency is high, transmission of axial force and torque is stable, the structure is compact, assembly is easy, and the working condition adaptability is high.

Description

technical field [0001] The invention relates to the field of multi-stage high-speed steam turbines, in particular to a centering transmission torque locking combination mechanism of multi-stage high-speed steam turbines. Background technique [0002] In traditional multi-stage high-speed steam turbines, pin keys are used to realize the connection between the shaft and the impeller disc, which plays the role of torque transmission. The fastening form between the impeller disc and the shaft is also mostly realized by the interference fit of the pin key. The multi-stage high-speed steam turbine uses pin-key structure in many places, which will fail due to plastic deformation of the material during long-term operation, and the pin-key structure should not be used at high speed. Contents of the invention [0003] In view of this, the present invention proposes a centering torque transmission and locking combination mechanism of a multi-stage high-speed steam turbine that can e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D5/06
CPCF01D5/066
Inventor 王志强王俊
Owner SHENZHEN WISDOM ENERGY TECH CO
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