Ball bearing structure and supercharger

A ball bearing and symmetrical structure technology, applied in the field of turbochargers, can solve the problems affecting the performance of the turbocharger as a whole, affecting the clearance in front of the impeller/turbine blade, etc., so as to eliminate the clearance, facilitate assembly, and improve the performance of the whole machine. Effect

Pending Publication Date: 2022-08-02
NINGBO WEIFU TIANLI TURBOCHARGING TECH
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AI Technical Summary

Problems solved by technology

At the same time, in order to ensure assembly, the balls in the ball bearings are wrapped in the grooves of the inner and outer rings, and there is an axial clearance. These two axial clearances will affect the front clearance of the impeller / turbine, so as to affect the turbocharger. The overall performance of the device needs to be improved

Method used

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  • Ball bearing structure and supercharger
  • Ball bearing structure and supercharger
  • Ball bearing structure and supercharger

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Embodiment Construction

[0031] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0032] In the following embodiments, the same or similar reference numerals represent the same or similar originals or originals with the same or similar functions from beginning to end. The following embodiments described with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but not to be understood. to limit the present invention.

[0033] In the description of the present invention, it should be understood that terms: center, longitudinal, lateral, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, Clockwise, counterclockwise and other indications of orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the...

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Abstract

The ball bearing structure comprises an inner sleeve assembly and an outer sleeve assembly, and a ball assembly is arranged between the inner sleeve assembly and the outer sleeve assembly; the outer sleeve assembly comprises outer rings located at the two axial ends and an outer ring supporting sleeve located between the two outer rings, gaps are formed between the axial end faces of the outer rings and the axial end faces of the outer ring supporting sleeve, and elastic bodies are arranged in the gaps. The ball assembly is arranged between the outer ring and the inner sleeve assembly and comprises a retainer and a plurality of balls limited in the retainer; corresponding annular raceways are arranged on the inner wall of the outer ring and the outer wall of the inner sleeve assembly, and the balls can roll on the annular raceways. Meanwhile, the invention further relates to a supercharger with the ball bearing structure. The outer sleeve assembly and the inner sleeve assembly of the ball bearing are of a sectional structure, axial outer thrust can be generated under the action of the elastic piece, the ball bearing has axial flexibility, gaps are eliminated, and the overall performance of a supercharger is improved.

Description

technical field [0001] The invention belongs to the technical field of turbochargers, in particular to a ball bearing structure used in a supercharger, and also to the supercharger. Background technique [0002] Turbocharging technology is widely used in automobiles. Among them, the turbocharger uses the inertial impulse of the exhaust gas discharged from the engine to drive the turbine in the turbine box, and the turbine drives the coaxial impeller to form a rotor assembly. The impeller is compressed by the air filter. The air sent by the cleaner pipe is pressurized and then enters the combustion chamber of the engine. Turbochargers are generally composed of turbines, core components, compressors and other components. As an important device used in automobiles, the reliability and operational stability of turbochargers need to be paid attention to. [0003] In the turbocharger, the turbine impeller and the compressor impeller are connected by a rotating shaft to ensure syn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C27/00F16C27/04F01D25/16F04D29/056F04D29/059F02B37/00
CPCF16C27/00F16C27/04F01D25/16F01D25/162F04D29/0563F04D29/059F02B37/00F16C2360/24Y02T10/12
Inventor 张艳丽沃鸣杰李亚静郑超
Owner NINGBO WEIFU TIANLI TURBOCHARGING TECH
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