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Shaft connection structure

A technology for connecting structures and connecting shafts, which is applied in the direction of shaft couplings, rigid shaft couplings, mechanical equipment, etc., can solve the problems that the power transmission shaft cannot transmit power, etc., and achieve good power transmission quality, large connection contact area, and connection contact with good effect

Active Publication Date: 2020-03-24
CHINA HANGFA SOUTH IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a shaft connection structure to solve the technical problem that the existing power transmission shaft cannot smoothly transmit power to the rear journal of the compressor

Method used

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Embodiment Construction

[0024] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0025] Reference figure 1 , The preferred embodiment of the present invention provides a shaft connection structure connected between the turbine component and the compressor component for transmitting the power of the turbine component to the compressor component. The shaft connection structure includes: hollow and connected at both ends The connecting shaft 10 is detachably and fixedly connected to the turbine disc 30 of the turbine component through the fixed connecting piece 20 at the input end of the connecting shaft 10 to prevent relative movement between the connecting shaft 10 and the turbine disc 30. The shaft hole of the output end of the connecting shaft 10 is provided with a limiting step 101 protruding toward the center thereof, and the out...

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Abstract

The invention discloses a shaft connection structure. The shaft connection structure comprises a connecting shaft, wherein the connecting shaft is hollow, and two ends of the connecting shaft are in communication; the input end of the connecting shaft is detachably and fixedly connected with a turbine disk of a turbine component through a fixed connecting piece, so that relative motion between theconnecting shaft and the turbine disk is avoided; a limiting step which is protruded facing the center of a shaft hole is arranged in the shaft hole of the output end of the connecting shaft; the output end of the connecting shaft is connected with a gas compressor rear shaft journal of the gas compressor component through an internal and external spline structure; an axial limiting member is fixedly mounted in the shaft hole of the gas compressor rear shaft journal, and is used for propping the limiting step to enable the connecting shaft to be in rigidity connection with the gas compressorrear shaft journal, then the power transmitted by the turbine disk to the connecting shaft is smoothly transmitted to the gas compressor rear shaft journal, and besides, the axial limiting member andthe propping limiting step are also used for preventing the connecting shaft to slide towards the turbine disk in the axial direction. According to the shaft connection structure disclosed by the invention, the power can be smoothly transmitted to the gas compressor rear shaft journal by the connecting shaft, and the power transferring quality is good.

Description

Technical field [0001] The invention relates to the field of aeroengines, in particular to a shaft connection structure. Background technique [0002] The power transmission shaft is one of the important structural parts of the turboprop aeroengine. The input end of the shaft is connected to the turbine disc in the turbine component, and the output end of the shaft is connected to the rear journal of the compressor for rotating the turbine rotor in the turbine component. The generated power is transmitted to the compressor, accessory transmission device and propeller through the power transmission shaft. In the prior art, the input end of the power transmission shaft is connected to the turbine disk through a tension bolt, and the output end of the power transmission shaft is connected to the rear journal of the compressor through an internal and external spline structure. Since the power transmission shaft works in a high temperature, high pressure, and high-speed air flow envi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D1/02
CPCF16D1/02
Inventor 马立恒杨春华刘昌华倪慧妍
Owner CHINA HANGFA SOUTH IND CO LTD
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