Shaft connecting device

A technology of shaft connection device and connecting piece, which is applied in the direction of shaft coupling, elastic coupling, mechanical equipment, etc.

Active Publication Date: 2013-09-18
CHINA AVIATION POWER MACHINE INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above connection cannot isolate the vibration between the shaft head of the rotating test piece connected at both ends and the power shaft when the small torque is transmitted.

Method used

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Embodiment Construction

[0025] 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.

[0026] see figure 1 , the preferred embodiment of the present invention provides a shaft connecting device, the first connecting piece 10 fixedly connected with the transmission shaft 1; the second connecting piece 20 fixedly connected with the power shaft 2; connecting the first connecting piece 10 and the second The connecting shaft 30 of the connecting part 20, the connecting shaft 30 includes a first matching part 31 that is relatively swingable connected with the first connecting part 10 along the axis of the connecting shaft 30 and relatively swingable with the second connecting part 20 along the axis of the connecting shaft 30 Connected second mating portion 32 . According to the shaft connecting device of the present invention, the transmis...

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Abstract

The invention provides a shaft connecting device which comprises a first connecting piece fixedly connected with a transmission shaft, a second connecting piece fixedly connected with a power shaft and a connecting shaft connected with the first connecting piece and the second connecting piece, wherein the connecting shaft comprises a first matching part which is connected with the first connecting piece in such a way that the first matching part and the first connecting piece can swing relatively along the axis of the connecting shaft, and a second matching part which is connected with the second connecting piece in such a way that the second matching part and the second connecting piece can swing relatively along the axis of the connecting shaft. When the coaxiality of the power shaft is different from that of the transmission shaft, and the small torque transmission is adopted, as the first connecting piece can swing relative to the first matching part, and the second connecting piece can swing relative to the second matching part, the connection between the first connecting piece and the first matching part and the connection between the second connecting piece and the second matching part are equivalent to flexible connection, so that vibration cannot be transmitted between the power shaft and the transmission shaft, thus realizing the vibration isolation between the power shaft and the transmission shaft.

Description

technical field [0001] The invention relates to the field of transmission structures, in particular to a shaft connection device. Background technique [0002] During the research of high-speed rotor dynamics test in the development process of turboshaft engine, the technical problem of mutual interference of vibration between the shaft head of the high-speed rotating test piece and the power shaft is often encountered when the small torque is transmitted. The so-called small torque transmission means that the transmitted torque value is only (0-15) N.m, and the working speed is as high as (20000-45000) r / min. [0003] The existing connection methods between the shaft heads mainly include straight-tooth spline floating shaft connection, drum-shaped tooth spline floating shaft connection, membrane disk connection, nylon rope connection and so on. However, the above connection cannot isolate the vibration between the shaft head of the rotating test piece connected at both end...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D3/50
Inventor 陈运西王金舜侯明
Owner CHINA AVIATION POWER MACHINE INST
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