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Sealing structure

A technology of sealing structure and sealing ring, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problem of inappropriate groove size, etc., and achieve the effect of compact design structure and satisfying product performance

Inactive Publication Date: 2016-08-03
龙工(上海)精工液压有限公司
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  • Claims
  • Application Information

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Problems solved by technology

However, if the design structure is limited, the groove size recommended by the standard may not be applicable

Method used

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Embodiment Construction

[0029] In order to make the present invention more obvious and comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.

[0030] The present invention is a sealing structure, such as image 3 and Figure 4 As shown, it includes a first casing 1, the first casing 1 includes a first casing body 1-1, and the first casing body 1-1 is provided with an inclined groove for installing an O-ring 2 and a groove for installing the O-ring 2. Bolt holes 1-3 for connecting the first shell 1 and the second shell 3.

[0031] In order to avoid the interference between the installation size of the groove 1-2 of the O-ring 2 and the position of the connecting bolt holes 1-3 of the two shells, under the condition that the stretching amount of the O-ring 2 allows, the O-ring is used in this embodiment. The elasticity of the ring 2 itself, increase the diameter d of the groove 1-2, the design of the diameter d satisfies the control of the st...

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Abstract

The invention discloses a sealing structure. The sealing structure comprises a first shell which comprises a first shell body, and a groove with an O-shaped sealing ring and a bolt hole for connecting the first shell with a second shell are formed in the first shell body. The sealing structure is characterized in that the groove is a slope groove. According to the sealing structure, under the condition that the stretching amount, the compression rate and the filling rate of the O-shaped sealing ring are met, the diameter of the groove is increased, the position of a bolt installation connecting hole in the shell is avoided, and interference to the product installation position due to increasing of the shell appearance size is prevented; in order to prevent the O-shaped sealing ring from popping out of the groove under the stretching condition, the groove is designed to be in a sloping state; and meanwhile, the chamfer between the slope in the installation groove of the O-shaped sealing ring and the end face is smaller than R0.2, burrs are not allowed, and abrasive paper for metallograph needs to be used for removing the burrs at the crossed position after machining is carried out.

Description

technical field [0001] The invention relates to a sealing structure, in particular to a groove structure for installing an O-shaped sealing ring, and belongs to the technical field of sealing structures. Background technique [0002] In the hydraulic components and their systems, the sealing device is used to prevent the leakage of the working medium and the intrusion of external dust and foreign matter. Oil leakage is one of the common faults in the hydraulic system. External leakage will cause waste of the working medium and dirty equipment. , pollute the environment, and even cause accidents such as mechanical operation failure. Internal leakage will cause the volumetric efficiency of the hydraulic system to decrease and the loss of hydraulic energy to reach the required working pressure or fail to work. The tiny particles intruding into the system can cause or exacerbate the wear, blockage, jamming or damage of the friction pair of hydraulic components, resulting in syst...

Claims

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Application Information

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IPC IPC(8): F16J15/06
CPCF16J15/06
Inventor 黄雪兰余红波杨勇
Owner 龙工(上海)精工液压有限公司
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