Unlock instant, AI-driven research and patent intelligence for your innovation.

High-strength aviation gas bearing

A gas bearing, high-strength technology, applied in the direction of bearings, bearing components, shafts and bearings, etc., can solve the problems of rotor system performance impact, gas bearing instability, gas film instability, etc., to improve mechanical performance and simplify the manufacturing process , high-strength effect

Inactive Publication Date: 2016-04-20
王亚莉
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the surface of the bearing needs to be processed with complex grooves, and the processing cost is high; the disadvantages such as the instability of the gas film during operation will affect the performance of the entire rotor system. The dynamic pressure bearing is still in the research stage. In order to simplify the process and avoid the instability of the gas bearing

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A high-strength air bearing for aviation, including a bearing seat and a shaft arranged in the bearing seat, the bearing seat is made of steel-bonded hard alloy, and the raw material powder of the steel-bonded hard alloy includes a hard phase and a steel-based binder. It is characterized in that its composition is in terms of mass percentage: the hard phase is composed of TiC56%, TiN8%, TICN2%, and the balance is WC; the steel-based binder (weight) is composed of C0.4%, Si1.2%, Zn2. 2%, Al1.1%, Mn5.0%, Cr11.2%, Ni0.5%, Mo0.6%, V0.25%, Nb0.02%, B0.02%, the balance is Fe; hard The weight ratio of phase and steel-based binder is 0.8,

[0034] Steel-bonded cemented carbide is prepared by powder mixing, pressing and sintering, heating forging, annealing, machining, quenching and tempering:

[0035] Among them, in the powder mixing process: Weigh TiC with a particle size of 50-80 μm, TiN with a particle size of 65-110 μm, TICN with a particle size of 35-100 μm, and WC powder...

Embodiment 2

[0043] A high-strength air bearing for aviation, including a bearing seat and a shaft arranged in the bearing seat, the bearing seat is made of steel-bonded hard alloy, and it is characterized in that its composition is as follows in terms of mass percentage: the hard phase is composed of TiC75%, TiN12 %, TICN7%, the balance is composed of WC; the steel base binder (weight) is composed of C0.8%, Si1.4%, Zn2.4%, Al1.3%, Mn5.5%, Cr11.4%, Ni0.6%, Mo0.8%, V0.35%, Nb0.04%, B0.05%, the balance is Fe; the weight ratio of hard phase and steel-based binder is 0.8,

[0044] Steel-bonded cemented carbide is prepared by powder mixing, pressing and sintering, heating forging, annealing, machining, quenching and tempering:

[0045] Among them, in the powder mixing process: Weigh TiC with a particle size of 50-80 μm, TiN with a particle size of 65-110 μm, TICN with a particle size of 35-100 μm, and WC powder with a particle size of 35-100 μm to mix according to the above ratio, according to ...

Embodiment 3

[0053] A high-strength air bearing for aviation, including a bearing seat and a shaft arranged in the bearing seat. The bearing seat is made of steel-bonded hard alloy. It is characterized in that its composition is as follows in terms of mass percentage: the hard phase is composed of TiC70%, TiN10 %, TICN5%, the balance is composed of WC; the steel base binder (weight) is composed of C0.6%, Si1.3%, Zn2.3%, Al1.2%, Mn5.2%, Cr11.3%, Ni0.55%, Mo0.7%, V0.3%, Nb0.03%, B0.03%, the balance is Fe; the weight ratio of hard phase and steel-based binder is 0.8,

[0054] Steel-bonded cemented carbide is prepared by powder mixing, pressing and sintering, heating forging, annealing, machining, quenching and tempering:

[0055] Among them, in the powder mixing process: Weigh TiC with a particle size of 50-80 μm, TiN with a particle size of 65-110 μm, TICN with a particle size of 35-100 μm, and WC powder with a particle size of 35-100 μm to mix according to the above ratio, according to the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a high-strength aviation gas bearing which comprises a bearing block and a shaft. The shaft is arranged in the bearing block, and the bearing block is made of steel bond hard alloy. The high-strength aviation gas bearing has the advantages that the mechanical performance of materials can be improved by the aid of TiC, TiN and TICN of hard phases of the gas bearing block; components of steel-base binders are high in strength, and accordingly the strength of the steel bond hard alloy can be further improved under the effects of the hard phases.

Description

technical field [0001] The invention relates to a high-strength aviation gas bearing, which belongs to the technical field of gas bearings. Background technique [0002] The gas bearing is a non-contact support method with gas as a lubricant. The gas has the characteristics of low viscosity, no pollution and homogenization effect, which determines that the gas bearing has higher speed, better precision and nearly infinite life. And its lubrication The advantages of easy access to materials and no pollution make gas bearings the most ideal bearing support method in the field of high-speed and high-precision machining. At present, the surface of the bearing needs to be processed with complex grooves, and the processing cost is high; the disadvantages such as the instability of the gas film during operation will affect the performance of the entire rotor system. The dynamic pressure bearing is still in the research stage. In order to simplify the process and avoid the instabili...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F16C32/06F16C35/00C22C29/02C22C1/05C21D9/40C21D1/26C21D1/18C22C38/58C22C38/54C22C38/44C22C38/46C22C38/48C22C38/02C22C38/06
CPCF16C32/06C21D1/18C21D1/26C21D9/40C22C1/051C22C29/005C22C29/02C22C38/02C22C38/06C22C38/44C22C38/46C22C38/48C22C38/54C22C38/58F16C35/00F16C2206/02
Inventor 王亚莉
Owner 王亚莉