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Locking connection device for low-pressure rotor of gas turbine

A technology for low-pressure rotors and gas turbines, applied to gas turbine devices, jet propulsion devices, mechanical equipment, etc., can solve problems such as difficult connections and difficult locking, and achieve the effects of reducing manpower and material costs, easy processing, and low maintenance costs

Active Publication Date: 2022-07-01
成都中科翼能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the connection between the existing low-pressure compressor rotor and the low-pressure turbine rotor is difficult and difficult to lock, this solution provides a locking connection device for the low-pressure rotor of the gas turbine

Method used

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  • Locking connection device for low-pressure rotor of gas turbine
  • Locking connection device for low-pressure rotor of gas turbine
  • Locking connection device for low-pressure rotor of gas turbine

Examples

Experimental program
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Effect test

Embodiment 1

[0030] like Figure 1 to Figure 3 As shown, this embodiment designs a locking connection device for the low-pressure rotor of a gas turbine, which is used to lock the connection state of the low-pressure compressor rotor and the low-pressure turbine rotor, and realizes the tightening of the nut through the cooperation of the spline structure. 21 position lock.

[0031] There is an urgent need for gas turbines in the civil direction of the electric power industry, petroleum industry, chemical industry and metallurgical industry, as well as in the military direction such as ship power and chariot power. In the working process of the gas turbine, it is an important step in which the high-temperature gas drives the turbine impeller to drive the compressor impeller to rotate together, and is a key step to ensure the cyclic operation of the gas turbine. Therefore, as the core rotating component of the gas turbine rotor, the stability and reliability of its structure must be guarant...

Embodiment 2

[0042] On the basis of the structure of the embodiment 1, the using method of the locking connection device 2 comprises the following steps:

[0043] The first step is to first assemble the compression spring 24 on the tension nut 21, and then assemble the locking bushing 22 to ensure that the nut outer splines 214 and the locking inner splines 224 are engaged with each other, and then the compression spring 24 is compressed to the design Finally, assemble the force-transmitting bushing 23 to ensure that the end face J of the tension nut 21 is in close contact with the force-transmitting bushing 23, and the assembling pin 25 locks the locking bushing 22 and the force-transmitting bushing 23 to form a locking connection device 2 .

[0044] In the second step, the above-mentioned locking connection device 2 is assembled on the rear journal of the low-pressure compressor rotor to ensure that the locking external splines 223 are fully engaged with the journal locking splines 13, w...

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Abstract

The invention belongs to the technical field of gas turbine low-pressure rotor connecting structures, and particularly relates to a gas turbine low-pressure rotor locking connecting device which comprises a tightening nut and a locking bush. The tightening nut is sleeved with the locking bush, and the locking bush can slide relative to the axial direction of the tightening nut so that the locking bush can be arranged on the unlocking station or the locking station; when the locking bush is located at the unlocking station, the tensioning nut can rotate relative to the locking bush so that the tensioning nut can be screwed to the front end of the low-pressure turbine shaft. When the locking lining is in a locking state, the locking lining can be matched with the tensioning nut and the compressor rear shaft neck spline at the same time. According to the scheme, the structure is simple, the size is small, stability is high, automatic locking can be achieved in a narrow assembly space, a matched tool is simple in design and easy to machine, reliable connection of the low-pressure turbine shaft is guaranteed, investment of complex tools and implementation of the assembly technological process are avoided, and manpower and material resource cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of low-pressure rotor connection structures of gas turbines, and in particular relates to a locking connection device for low-pressure rotors of gas turbines. Background technique [0002] A gas turbine is an internal combustion power machine that converts the energy of gas into useful work. It is widely used in the field of civil power generation or as a power device in aircraft or large ships. The working process of the gas turbine is as follows: the compressor continuously sucks in air from the atmosphere and compresses the air; the compressed air enters the combustion chamber, and is mixed with the gas injected into the combustion chamber and then combusted to become high-temperature gas, and then the high-temperature gas flows into the combustion chamber. It expands to the gas turbine to do work, and uses high-temperature gas to drive the turbine to rotate with the compressor; the gas turbine is a devic...

Claims

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Application Information

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IPC IPC(8): F02C3/04F02C7/36
CPCF02C3/04F02C7/36
Inventor 闪颂武王鸣杨斌梁豪豪高原蒋印方圆杨万金陈涛富健强
Owner 成都中科翼能科技有限公司