Double-lip sealing ring for rotary shaft of air conditioner compressor

A technology for air-conditioning compressors and rotating shafts, which is applied to the sealing of engines, mechanical equipment, and engine components. It can solve the problems of affecting sealing performance, sealing lip tension and shape instability, and short service life. Unstable performance, eliminate single-bias phenomenon, and ensure the effect of sealing performance
CN101818809AInactive Publication Date: 2010-09-01常州朗博密封科技股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
常州朗博密封科技股份有限公司
Publication Date
2010-09-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a double-lip sealing ring for a rotary shaft of an air conditioner compressor. The double-lip sealing ring consists of a first sealing seat ring, a limit taper sleeve, a second sealing ring, a bearing tray and a bearing gasket; the limit taper sleeve, the second sealing ring, the bearing tray and the bearing gasket are arranged in the cavity of the first sealing seat ring in turn; and the sectional shape of a bearing lug boss ring is right-angled trapezoid, the right-angled waist is inside, and the oblique waist is outside. The sectional shape of the bearing lug boss ring is changed into the right-angled trapezoid from rectangle; and after the bearing lug boss ring is pressed, the radial component force of the pressure acted on the bearing lug boss ring is outward and has minimum influence on the limit taper sleeve, thus ensuring the shapes of sealing lips and the stability of tension, ensuring the sealing performance, eliminating the single offset phenomenon produced after a sealing lip belt is pressed and deformed, reducing the friction force between the sealing lip belt and the rotary shaft, prolonging the service life of the whole product and reducing the energy consumption.
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Description

Technical field:

[0001] The invention relates to a sealing part for an air-conditioning compressor, in particular to a double-lip sealing ring for the rotating main shaft of the air-conditioning compressor. Background technique:

[0002] The skeleton sealing ring used in the rotating shaft of the air-conditioning compressor has high requirements. It must be able to isolate the refrigerant and refrigerating oil in the air-conditioning compressor from the transmission parts to prevent leakage of the refrigerant and refrigerating oil. At present, the rotating shaft of the air-conditioning compressor The skeleton sealing ring used is double-lip sealing structure, as attached figure 1 As shown, it consists of the first sealing seat ring 1, the limit cone sleeve 2, the second seal ring 3, the pressure tray 4 and the pressure washer 5, the limit cone sleeve 2, the second seal ring 3, the pressure tray 4 and the pressure washer 5 are sequentially installed in the inner cavity of th...

Claims

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