Rotary oil seal
An oil seal and sealing part technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of affecting the sealing effect, corrosion and rust, affecting the appearance, etc., to prolong the service life, avoid corrosion and rust, and seal the effect. Good results
Active Publication Date: 2015-01-14
KUNSHAN KENBO SEALING SCI & TECH
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Problems solved by technology
In order to increase the strength of the rotary oil seal, a metal skeleton is embedded inside it. Some metal skeletons in the existing oil seal are exposed to the air. Over time, the metal skeleton will gradually be corroded and rusted in the process of contacting the air. Affect the appearance, but also affect the sealing effect
Method used
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[0015] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.
[0016] see figure 1 with figure 2 , The rotary oil seal of the present invention includes an annular body made of rubber material, a metal skeleton 1 and a spring 2 .
[0017] Wherein, the annular body includes an inner ring 3 , an outer ring 4 and a transition portion 5 connecting the inner ring 3 and the outer ring 4 , and the inner ring 3 is formed with a dustproof portion 6 and a sealing portion 7 . The effect of the spring 2 is to form a tight fit between the sealing part 7 and the rotating shaft, so the spring 2 is adjacent to the sealing part 7, as figure 1 shown.
[0018] see figure 2 , in order to increase the mechanical strength of the rotary oil seal, an L-shaped metal frame 1 is embedded inside the transition portion 5 and the outer ring 4. As a preferred method, the metal frame 1 is made of iron. At the same time, in o...
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The invention discloses a rotary oil seal comprising an annular main body made of rubber materials, a metal framework and a spring. The annular main body comprises an inner ring, an outer ring and a transitional part for connecting the inner ring with the outer ring, a dustproof part and a sealing part are formed in the inner ring, the spring and the sealing part are arranged adjacently, and the metal framework is L-shaped, and is embedded in the transitional part and the outer ring; a plurality of face part carving teeth and inner part carving teeth used for positioning are formed on the two surfaces of the transitional part respectively, the metal framework is partially exposed in air due to the inner part carving teeth, inserting strips which are made of rubber materials and covers the metal framework are formed at the inner part carving teeth, and an inserting slot for exposing the metal framework is formed between the inserting strips. The rotary oil seal has the beneficial effects that a sealing effect of the rotary shaft seal is good, the area of the metal framework exposed in air is reduced greatly, the corrosion and rust of the metal framework are avoided as far as possible, the appearance is kept attractive, the service life is prolonged, and the sealing effect is kept.
Description
technical field [0001] The invention relates to a rubber seal, in particular to a rotary oil seal. Background technique [0002] Rotary oil seal is a type of seal that prevents lubricating oil under pressure from leaking out. It is widely used in household appliances, automobile engines, motorcycles and other products that require oil, gas and water sealing. In order to increase the strength of the rotary oil seal, a metal skeleton is embedded inside it. Some metal skeletons in the existing oil seal are exposed to the air. Over time, the metal skeleton will gradually be corroded and rusted in the process of contacting the air. Affect the appearance, but also affect the sealing effect. Contents of the invention [0003] In order to solve the deficiencies of the prior art, the object of the present invention is to overcome the deficiencies of the prior art and provide a rotary oil seal with good sealing effect, avoiding corrosion and rust of the metal frame as much as possi...
Claims
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IPC IPC(8): F16J15/32F16J15/3208F16J15/3248F16J15/3284
Inventor 诸立亚袁立芬
Owner KUNSHAN KENBO SEALING SCI & TECH