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 of power transmission shafts that cannot transmit power, and achieve good power transmission quality, good connection contact, and connection contact. large area effect

Active Publication Date: 2019-04-09
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

[0023] 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.

[0024] refer to figure 1 , the preferred embodiment of the present invention provides a shaft connection structure, which is connected between the turbine part and the compressor part, and is used to transmit the power of the turbine part to the compressor part. The shaft connection structure includes: a hollow shaft connected at both ends The connection shaft 10, the input end of the connection shaft 10 is detachably fixedly connected with the turbine disk 30 of the turbine component through the fixed connection piece 20, so as to prevent relative movement between the connection shaft 10 and the turbine disk 30. The shaft hole at the output end of the connecting shaft 10 is provided with a limit step 101 protruding toward its center, and the output...

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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 aero-engines, in particular to a shaft connection structure. Background technique [0002] The power transmission shaft is one of the important structural parts of the turboprop aero-engine. The input end of the shaft is connected with the turbine disk in the turbine part, and the output end of the shaft is connected with the rear journal of the compressor, which is used to rotate the turbine rotor in the turbine part. The generated power is transferred to the compressor, accessory drive and propeller via the power transfer shaft. In the prior art, the input end of the power transmission shaft is connected to the turbine disk through tension bolts, 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 the environment of high temperature, high pressure and high-speed air flo...

Claims

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Application Information

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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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