Composite sealing ring
A kind of sealing ring, compound technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of waterway and oilway pollution, high filling rate, high compression rate, achieve long-term maintenance of sealing performance, avoid damage, guarantee The effect of thermal expansion and contraction
Inactive Publication Date: 2016-09-21
GUANGXI YUCHAI MASCH CO LTD
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Problems solved by technology
[0002] At present, there are many composite sealing rings. The design shape of the sealing rubber makes the existing composite sealing rings have some problems: first, the compression rate is relatively high, which is easy to deform and age; When some bolts are tightened, due to the rotation of the bolts, the excess rubber is scraped out of the threads and enters the oil-passing bolts or pipelines, causing pollution to the water and oil circuits.
Method used
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[0013] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.
[0014] Unless expressly stated otherwise, throughout the specification and claims, the term "comprising" or its conjugations such as "comprising" or "comprising" and the like will be understood to include the stated elements or components, and Other elements or other components are not excluded.
[0015] like figure 1 and figure 2 As shown, the specific structure of the composite sealing ring 3 according to the specific embodiment of the present invention includes: a steel ring 1 and a rubber body 2 arranged in the inner ring of the steel ring 1, wherein the rubber body 2 includes a ring body and a rubber body 2 arranged in the ring The bolt polished rod tab of the inner ring, the cross section of the ring body is tra...
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Abstract
The invention discloses a composite sealing ring. The composite sealing ring comprises an annular steel ring and a rubber body. The rubber body comprises a ring body and bolt polished rod clamping tongues distributed on the inner ring of the ring body. The section of the ring body is in a trapezoid shape, and the small end of the trapezoid is attached to and fixed to the inner ring of the steel ring. The thickness of the large end of the trapezoid is larger than that of the steel ring. The multiple bolt polished rod clamping tongues are evenly distributed along the inner circumference of the ring body. The diameter of an inner circle defined by the multiple bolt polished rod clamping tongues is matched with the diameter of a matched bolt polished rod. The rubber body of the composite sealing ring is deformed, bent inwards and gathered when stressed, , damage caused by rotation extrusion is avoided, and therefore the phenomena of rubber tearing, drawing and overflowing are avoided.
Description
technical field [0001] The invention relates to the field of sealing gaskets, in particular to a composite sealing ring. Background technique [0002] At present, many composite sealing rings have some problems due to the design shape of the sealing rubber: one is that the compression rate is relatively high, which is easy to deform and age; When the bolts are tightened, the excess rubber is scraped out of the thread due to the rotation of the bolts and entered into the oil-passing bolts or pipelines, causing pollution of the waterway and oil circuit. [0003] The information disclosed in this Background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art. SUMMARY OF THE INVENTION [0004] The purpose of the present invention is to provide a composite sealing ring wi...
Claims
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IPC IPC(8): F16J15/10
CPCF16J15/104
Inventor 包向东张福刘益军
Owner GUANGXI YUCHAI MASCH CO LTD