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Small turbine engine rotor support and lubrication integrated structure

A turbine engine and rotor support technology, which is applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve the problems of bulky lubrication system and complex structure, and achieve the advantages of reduced overall volume, compact structure, and efficient internal circulation of lubricating oil Effect

Active Publication Date: 2021-11-26
SICHUAN AEROSPACE ZHONGTIAN POWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on the above problems, the present invention provides a small turbine engine rotor supporting and lubricating integrated structure, which solves the problems of the existing small turbine engine's complicated supporting structure and heavy lubrication system, and realizes the highly integrated elastic support and lubricating oil internal circulation of the small turbine engine and efficient heat transfer

Method used

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  • Small turbine engine rotor support and lubrication integrated structure
  • Small turbine engine rotor support and lubrication integrated structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] see Figure 1~2 , a small turbine engine rotor supporting and lubricating integrated structure, including a casing 5, an engine shaft 12 is installed on the casing 5, and a lock nut 2, a closed centrifugal pump 4, and a positioning sleeve 10 are sequentially arranged in series on the engine shaft 12. The bearing 8, the rear blocking cover 9 and the rotor impeller 6, the side of the lock nut 2 away from the rear blocking cover 9 is provided with the front blocking cover 3 connected with the casing 5, and the front blocking cover 3, the casing 5, and the rear blocking cover 9 are sealed and connected, and the casing 5 on the outside of the engine shaft 12 is provided with a strip groove 13. The position where the bearing 8 is installed on the casing 5 and the side wall of the casing 5 are in the form of a cantilever. The front block cover 3 and the rear block cover 9. The closed space formed by the casing 5 is provided with a guide block 7 connecting the closed centrifuga...

Embodiment 2

[0037] This embodiment is further optimized on the basis of implementation 1, specifically:

[0038] The front rubber ring 1 is used for sealing between the front blocking cover 3 and the casing 5, and the rear rubber ring 11 is used for sealing between the rear blocking cover 9 and the casing 5. The design of the front rubber ring 1 makes the connection between the front cover 3 and the casing 5 tighter, avoiding the leakage of the side oil of the front cover, and the design of the rear plug 9 makes the connection between the dog end cover and the casing 5 Tighter, avoiding the leakage of the rear plug cover 9 sideslip oil.

[0039] As a preferred mode, the engine shaft 12 runs through the casing 5 transversely, one end of the engine shaft 12 is connected with the lock nut 2, the other side of the engine shaft 12 is connected with the rotor impeller 6, and the casing on the side of the rotor impeller 6 is connected. 5 is provided with an annular groove 16 cooperating with th...

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Abstract

The invention relates to the technical field of turbine engines, and discloses a small-sized turbine engine rotor supporting and lubricating integrated structure, including a casing on which an engine shaft, a lock nut, a closed centrifugal pump, a positioning sleeve, a bearing, a rear blocking cover, The front block cover and the rotor impeller are provided with strip grooves on the case. The structure for installing the bearing on the case and the side wall of the case are in the form of a cantilever. The closed space formed by the front block cover, the rear block cover and the case The closed centrifugal pump, the guide block connecting the bearing, the closed space formed by the front block cover, the rear block cover and the casing are provided with an internal cavity, which can be connected to the inlet and outlet of the closed centrifugal pump, and through the guide block to connect the closed The centrifugal pump and the rotating shaft form an internal circulation oil circuit, and the casing is provided with lubricating oil injection holes. The invention solves the problems of complex supporting structure and bulky lubricating system of the existing small turbine engine, and realizes highly integrated elastic support, lubricating oil internal circulation and high-efficiency heat exchange effects of the small turbine engine.

Description

technical field [0001] The invention relates to the technical field of turbine engines, in particular to a small turbine engine rotor supporting and lubricating integrated structure. Background technique [0002] Small turbine engine rotors generally have high speed and load, and because the engine emphasizes small windward area and large unit thrust index, the volume space of the rotor's support and lubrication structure is repeatedly compressed, so high integration and efficient support and lubrication It has an important influence on the indicators of the turbine engine. [0003] The rotor support of the turbine engine requires reasonable stiffness and deflection, which can be used to adjust the critical speed and suppress vibration. The lubrication structure of the rotor needs to provide effective lubrication and cooling for the bearings to avoid bearing wear and overheating lock failures; general turbine engines When designing the supporting structure, install elastic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D25/24F01D25/28F01D25/18F01D25/20F01D25/16F01D25/14F01D25/12F01D11/00
CPCF01D11/003F01D25/12F01D25/14F01D25/16F01D25/18F01D25/20F01D25/24F01D25/28
Inventor 孟春潮刘驰李芳宋勇何国忠李纪永
Owner SICHUAN AEROSPACE ZHONGTIAN POWER EQUIP CO LTD
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