Threaded connection rotor structure of turbine thermoelectric conversion system

A technology of thermoelectric conversion and screw connection, which is applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems affecting the reliability of the closed cycle turbine thermoelectric conversion system, reduce the connection strength of the rotor, and poor repeatability of assembly, so as to improve The effects of running stability and working reliability, reducing mass and moment of inertia, and reducing space size

Active Publication Date: 2019-10-22
BEIJING POWER MACHINERY INST
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AI Technical Summary

Problems solved by technology

The existing rotor structure adopts the interference connection method. Although the coaxiality between the parts of the rotor can be guaranteed to a certain extent, the strength of the interference connection of the rotor depends on the assembly dimensions and tolerances of the parts. The processing accuracy of the assembly parts puts forward very high r

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  • Threaded connection rotor structure of turbine thermoelectric conversion system
  • Threaded connection rotor structure of turbine thermoelectric conversion system
  • Threaded connection rotor structure of turbine thermoelectric conversion system

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[0038] It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other if there is no conflict.

[0039] Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments.

[0040] A threaded connection rotor structure of a turbine thermoelectric conversion system includes a compressor impeller 1, a locking ring 2, a shaft sleeve 3, a motor shaft 4 and a turbine rotating shaft 5. The compressor wheel 1 has a threaded hole 7 assembled with the turbine shaft. The internal thread of the threaded hole 7 of the compressor wheel 1 is the same as the rotation direction of the rotor of the turbine power generation system when it is working. The compressor wheel 1 There is a coaxially sleeved outer cylindrical surface 8, the compressor impeller 1 has a locking ring groove 9 assembled with a locking ring, and the air inlet end of the compressor impeller 1 i...

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Abstract

The invention relates to a threaded connection rotor structure of a turbine thermoelectric conversion system and a manufacturing method. The rotor structure is formed by assembling a compressor impeller, a locking ring, a shaft sleeve, a motor shaft and a turbine rotating shaft; and the compressor impeller, the locking ring, the shaft sleeve, the motor shaft and the turbine rotating shaft are connected through threaded assembly structures. On the basis of finishing the machining of component parts of a rotor, firstly assembling the motor shaft, secondly assembling the motor shaft and the turbine rotating shaft, then assembling the shaft sleeve, the motor shaft and the turbine rotating shaft, and finally assembling the compressor impeller, the shaft sleeve, the turbine rotating shaft and the locking ring to form a complete rotor structure. Through the adoption of the threaded assembly connection structure among the component parts of the rotor, the connection strength and rigidity of the rotor can be effectively improved, the loosening of the component parts of the rotor of the turbine thermoelectric conversion system in the working process is prevented, and the running stability ofthe rotor and the working reliability of the system are improved.

Description

Technical field [0001] The invention belongs to the structural design field of a closed-cycle turbine thermoelectric conversion system, and particularly relates to a threaded rotor structure of a turbine thermoelectric conversion system. Background technique [0002] The closed-cycle turbine thermoelectric conversion system, as a new and efficient form of thermal conversion, can convert thermal energy to electrical energy through thermal processes such as absorbing heat, expanding work, releasing heat, and compressing in a closed environment with a certain gas working medium. A typical closed-cycle turbine thermoelectric conversion system is mainly composed of turbine, compressor, motor, regenerator and other components. [0003] The rotor of the closed-cycle turbine thermoelectric conversion system includes two parts: the turbine and compressor impeller rotor and the generator rotor. It is the most core component in the system, which plays a decisive role in the stable operation o...

Claims

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Application Information

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IPC IPC(8): F04D29/26F04D29/60F01D5/02H02K7/00B23P15/00
CPCB23P15/00F01D5/026F04D29/266H02K7/003
Inventor 王正马同玲侯泽兵吴小翠
Owner BEIJING POWER MACHINERY INST
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