Transmission device and gas turbine provided with same

Abstract

The invention provides a transmission device and a gas turbine provided with the same. The transmission device comprises a body which comprises a first end of the body, a second end of the body, a first torsion transmission part arranged between the first end of the body and the second end of the body, and a second torsion transmission part positioned at the second end of the body; the transmission device also comprises an aligning mechanism and a lock nut, wherein the aligning mechanism is sheathed on the body and positioned between the first end of the body and the first torsion transmission part; and the lock nut is arranged on the first end of the body. According to the invention, the aligning mechanism sheathed on the body leans against a step of an axle hole of a centrifugal-flow turbine by the lock nut arranged at the first end of the body, the lock nut is connected with the body by screw thread, and torque can be transmitted by the first torsion transmission part arranged on the body and the centrifugal-flow turbine. Therefore, the problem of complicated structure of the transmission device in the prior art can be solved, the manufacturing cost is reduced, and the assembly requirement of parts can be lowered.

Description

technical field [0001] The invention relates to the field of mechanical transmission, more specifically, to a transmission device and a gas turbine with the transmission device. Background technique [0002] figure 1 A schematic structural diagram of the first transmission device in the prior art is shown. Such as figure 1 As shown, the transmission includes a drum shaft 90 , a center tie rod 160 and a lock nut 30 . The central tie rod 160 includes a front tie rod 160a and a rear tie rod 160b, and the front tie rod 160a and the rear tie rod 160b are connected by threads. The drum shaft 90 includes two end faces, and each end face is provided with circular arc end teeth 91 . The gas turbine also includes a turbine 80 and a centrifugal impeller 70 , and the arc end teeth 91 on the two end surfaces of the drum shaft 90 mesh with the arc end teeth on the end surfaces of the turbine 80 and the centrifugal impeller 70 respectively. The central tie rod 160 passes through the t...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a transmission device and a gas turbine with the transmission device to solve the problem of poor kinematic characteristics of the centrifugal impeller and turbine rotor system in the prior art

[0009] From another aspect, the present invention solves the problems in the prior art that the transmission device takes up a lot of space, and the assembly accuracy of parts disassembled and reassembled is poorly consistent

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