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A main shaft sealing structure

A spindle seal and spindle technology, which is applied in engine seals, hydroelectric power generation, engine components, etc., can solve problems such as inability to effectively prevent bearings, loss of sealing effect, oxidation and hardening, etc.

Inactive Publication Date: 2017-07-07
GUANGDONG MEIYAN HYDROPOWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The main shaft of the water turbine is sealed by rubber. Due to the characteristics of the rubber ring material, it will oxidize and harden after one end is used, which will cause it to lose its proper sealing effect. At the same time, this structure cannot effectively prevent pressure Water leaks into the bulb body through the gap between the rotating and stationary parts and damages the bearings

Method used

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  • A main shaft sealing structure
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Embodiment Construction

[0012] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0013] see Figure 1-3 , this specific embodiment is realized by adopting the following technical scheme, which includes a circle of main shaft anti-wear ring 1 arranged on the inner side of the main shaft flange a, the corresponding sealing ring and the sealing seat ring 2 arranged at the journal of the main shaft b; Said sealing ring comprises a piston sealing ring outer ring 11 and a piston sealing ring inner ring 12 arranged on its inner side, a cavity is arranged between said piston sealing ring outer ring 11 and piston sealing ring inner ring 12, the cavity The body is provided with a piston seal ring 13 matched with the piston, one ...

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Abstract

The invention discloses a main shaft seal structure. The main shaft seal structure comprises a main shaft abrasion resisting ring(1) and a corresponding seal ring which are arranged on the inner side of a main shaft flange (a), and a seal seat ring (2) which is arranged on a shaft neck of a main shaft (b), wherein the seal ring comprises a piston seal ring outer ring (11) and a piston seal ring inner ring (12) arranged on the inner side of the piston seal ring outer ring (11), a round cavity around the piston seal ring inner ring (12) is arranged between the piston seal ring outer ring (11) and the piston seal ring inner ring (12), a piston seal ring (13) matched with a piston is arranged in the cavity, springs (14) are evenly distributed on the circumference of one end of the piston seal ring (13), and the other end of the piston seal ring extends out of the cavity and is pressed against the main shaft abrasion resisting ring(1) through the springs (14). The main shaft seal structure uses a combination method of radial sealing and axial sealing, and thereby can effectively prevent the phenomenon that pressure water leaks into a bulb body through an interval between a rotating portion and a stationary portion and damages a bearing.

Description

technical field [0001] The invention relates to the field of mechanical processing and manufacturing, in particular to a main shaft sealing structure. Background technique [0002] The main shaft of the water turbine is sealed by rubber. Due to the characteristics of the rubber ring material, it will oxidize and harden after one end is used, which will cause it to lose its proper sealing effect. At the same time, this structure cannot effectively prevent pressure. Water leaks into the bulb body through the gap between the rotating and stationary parts and damages the bearings. Contents of the invention [0003] The purpose of the present invention is to provide a main shaft sealing structure, which can effectively solve the problems in the background technology. [0004] In order to solve the problems existing in the background technology, it includes a circle of main shaft anti-friction ring 1 arranged on the inner side of the main shaft flange a and the corresponding se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/16F16J15/34F03B11/00
CPCF03B11/00F16J15/24F16J15/34Y02E10/20
Inventor 谢志玉李嘉平蓝惠玲陈先进丘冬芳王小娟
Owner GUANGDONG MEIYAN HYDROPOWER CO LTD