Runoff type supercharger turbine rotating shaft structure and molding process thereof

A turbocharger turbine and shaft structure technology, which is applied in the direction of machines/engines, blade support components, engine components, etc., can solve the difficult problems of reliable connection of turbocharger turbine shafts, so as to improve the allowable operating speed, reliable Connection, the effect of improving the connection rigidity
CN106988784AInactive Publication Date: 2017-07-28CHINA NORTH ENGINE INST TIANJIN
7 Cites 16 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA NORTH ENGINE INST TIANJIN
Publication Date
2017-07-28
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a runoff type supercharger turbine rotating shaft structure and a molding process thereof. The runoff type supercharger turbine rotating shaft structure comprises a turbine, a rotating shaft and a self-locking ring, the turbine is provided with an internal thread blind hole, a polished hole, a ring slot and a guide chamfer, the rotating shaft is provided with an external thread, a positioning shaft shoulder, a polished shaft and a ring slot, and the self-locking ring is an elastic opening ring and is provided with a guide chamfer. By reasonably determining the structure sizes of the turbine, the rotating shaft and the self-locking ring, the turbine, the rotating shaft and the self-locking ring are machined, and then the turbine, the rotating shaft and the self-locking ring are assembled to further form a complete turbine rotating shaft. By means of the runoff type supercharger turbine rotating shaft structure and the molding process, the problems in turbine rotating shaft connection when new materials such as ceramic and a titanium-aluminum alloy are adopted in the supercharger turbine can be effectively solved, reliable connection of the supercharger turbine rotating shaft can be achieved, and the connecting strength and rigidity of the turbine rotating shaft are sufficiently guaranteed.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the structural design field of a turbocharger, and in particular relates to a radial turbocharger turbine shaft structure and a forming process thereof. Background technique

[0002] The turbocharger is one of the key components of the turbocharged engine, and the turbine shaft is the core component of the turbocharger, which is mainly connected by the turbine and the shaft. At present, the supercharger turbine is generally made of cast nickel-based superalloy K418 material (the material density is 8.0Γ—10 3 kg / m 3 ), the shaft is made of 42CrMo alloy steel. For the turbocharger turbine made of K418 material and the shaft made of 42CrMo alloy steel, friction welding or electron beam welding technology can be used to realize the reliable connection between the turbine and the shaft to form the shaft of the turbine. However, due to the high density of the K418 alloy material, the moment of inertia of the turbine made of the K41...

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