External double lip skeleton oil seal

A skeleton oil seal and skeleton technology, applied in the direction of engine seals, engine components, mechanical equipment, etc., can solve problems such as inconvenient disassembly, and achieve cost-saving, low-cost, and low-cost effects

Active Publication Date: 2016-06-15
HUBEI XINZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of inconvenient online disassembly in the prior art, and provide a sealing lip, a crown, a spring groove, a ring pad-shaped frame, an L-shaped frame, a limit step, a shoulder, a back, a waist, an auxiliary The lip and the positioning groove are connected as one structure, and the spring is installed in the spring groove to apply pre-tightening force to the sealing lip, which is easy to install and disassemble, and has a reliable seal.

Method used

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  • External double lip skeleton oil seal
  • External double lip skeleton oil seal
  • External double lip skeleton oil seal

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with drawings and embodiments.

[0028] This embodiment discloses an externally mounted double-lip frame oil seal, the design concept of which is: design the ring pad-shaped frame 5 and the L-shaped frame 6, and use the ring pad-shaped frame 5 and the L-shaped frame 6 to be fixed or made into one body structure together constitute the radial and axial support mechanism of the external double-lip skeleton oil seal to solve the problem of the support strength of the shoulder 9 and the back 10. The part placed in the limit step 7 with the ring pad-shaped skeleton 5 and the L-shaped skeleton 6 provides sufficient mechanical strength for online disassembly. The split and partially split structures of the ring pad-shaped skeleton 5 and the L-shaped skeleton 6 provide convenience for online disassembly, disassembly and removal.

[0029] See the specific structure Figure 1-Figure 3 .

[0030] See attached ...

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Abstract

A lubricating oil (grease) sealing device for a bearing box or a gear box for a rotating shaft in mechanical equipment, in particular an external double-lip skeleton oil seal. Including the sealing lip, crown, spring groove, limit step, shoulder, back, waist, auxiliary lip, and positioning groove that constitute the integrated structure of the external double-lip skeleton oil seal. The sealing lip is located outside the crown, and the spring groove is located inside the crown. , the auxiliary lip is located on the outside of the waist, and also includes a ring cushion-shaped skeleton and an L-shaped skeleton. As a whole, a spring is arranged in the spring groove. The auxiliary lip is used to prevent impurities such as water vapor and dust from entering the sealing cavity, and the sealing lip is used to prevent the oil (grease) in the sealing cavity from leaking out. This oil seal completely solves the problem of inconvenient disassembly on-line. It has simple structure, low cost, strong adaptability, easy on-line replacement, and can completely replace the standard skeleton oil seal.

Description

technical field [0001] The invention relates to a lubricating oil (grease) sealing device for a bearing box or a gear box of a rotating shaft in mechanical equipment, in particular to an externally mounted double-lip skeleton oil seal. Background technique [0002] The oil seals on the market (as stipulated in the national standard GB / T9877.1-9877.3--1998) have an overall annular closed structure, which has good overall sealing performance and is easy to install, but it is difficult to disassemble online. When disassembling on-line, special tools must be used to dig it out from the narrow space between the sealing chamber and the rotating shaft, which is very difficult and easy to cause damage to the rotating shaft. Therefore, the traditional standard skeleton oil seal is no longer suitable for the requirements of online replacement. [0003] The double-split combined oil seal (patent No. ZL201120490390.7) and the self-positioning split skeleton oil seal (patent No. ZL20122...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/3232F16J15/3208F16J15/3248F16J15/54
Inventor 邓伦胜
Owner HUBEI XINZHI TECH CO LTD
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