CN203271944U - Cylinder pad with skeleton rubber sealing rings - Google Patents

Abstract

A cylinder gasket with a skeleton rubber sealing ring, its technical solution is: a cylinder gasket with a skeleton rubber sealing ring, comprising a metal gasket body, the metal gasket body is welded and fixed with a metal skeleton, and the metal gasket body is welded and fixed with a metal skeleton. There are vulcanized rubber sealing rings on both sides of the skeleton. There is a certain gap between the metal skeleton and the gasket body. The welding position on the gasket body and the metal skeleton is thinned and a welding position is reserved. The central position in the thickness direction of the gasket body, and the thickness of the rubber sealing rings on both sides of the same position of the metal skeleton is the same. The utility model has the advantages of simple structure, reasonable design, low cost and high sealing reliability, and can realize reliable sealing without sufficient axial force.

Description

A cylinder gasket with a skeleton rubber sealing ring

technical field

The utility model relates to a cylinder gasket with a skeleton rubber sealing ring. the

Background technique

The integral cylinder head has been widely used in various diesel engines because of its good rigidity. Generally, there is space for the gear chamber on the integral cylinder head, and the seal between the cylinder head and the cylinder body needs to be considered at the same time. Therefore, it is necessary to consider the sealing of the gear chamber at the same time for the integral cylinder gasket. There are 4 to 6 high-strength bolts around the combustion chamber hole, which have sufficient axial force. Generally, the pressure wave around the cylinder hole is used to seal the high-temperature and high-pressure combustion gas. The gear chamber end needs to be sealed with low-pressure engine oil. If the pressure wave around the gear chamber hole is used, additional cylinder head bolts are required to generate high axial force, which greatly increases the cost and is also limited in terms of space layout. At the same time, due to the large cavity area and irregular shape of the gear chamber, the reliability will be reduced if the pressure wave is used to seal.

Contents of the invention

Aiming at the deficiencies of the prior art, the utility model provides a technical scheme of a cylinder gasket with a skeleton rubber sealing ring. The utility model has simple structure, reasonable design, low cost and high sealing reliability, and can be realized in the absence of sufficient shaft Reliable sealing in case of force.

The utility model is realized through the following technical measures: a cylinder gasket with a skeleton rubber sealing ring, including a metal gasket body, the metal gasket body is welded and fixed with a metal skeleton, and both sides of the metal skeleton are vulcanized rubber seals There is a certain gap between the metal skeleton and the gasket body, and the welding position on the gasket body is thinned to reserve a welding position, and the metal skeleton is in the thickness direction of the gasket body The central position of the metal frame, the thickness of the rubber sealing rings on both sides of the same position of the metal skeleton is the same. the

The specific feature of the utility model is that the gap between the above-mentioned metal skeleton and the gasket body is not greater than 0.5mm.

The specific feature of the utility model is that there are 3-5 solder joints between the gasket body and the metal frame.

The beneficial effects of the utility model are: 1) double-sided vulcanized rubber sealing rings on a metal frame; 2) the shape and size of the rubber sealing rings on both sides of the metal frame are exactly the same to ensure the same sealing effect; The position, the thickness of the body is reduced, and the welding position is reserved, so that the metal skeleton is located in the center of the gasket body in the thickness direction of the gasket. In order to prevent the thickness from increasing after welding, there will be high points, which will affect the sealing. The metal frame is located in the center of the body to achieve the same sealing effect on both sides; 4) The metal frame with vulcanized rubber seal rings is welded to the cylinder gasket body at multiple points; 5) There is a certain gap between the metal frame and the body 0- 0.5mm, reserve space caused by deformation to prevent high points from affecting its sealing effect. 6) At the position away from the bolt, as the axial force further decreases, the thickness of the rubber sealing ring is gradually increased to compensate for the deformation difference caused by the decrease of the axial force. It can be seen from Figure 5 and Figure 6 that H2>H1.

Through the above design, the low-pressure engine oil in the space of the gear chamber on the integral cylinder gasket can be sealed without adding additional cylinder head bolts. The structure is simple, reliable, low-cost and easy to implement. This kind of structure that realizes low-pressure sealing by welding the skeleton with rubber material can be widely used in the sealing of machinery industry.

Description of drawings

Figure 1 is a structural diagram of a cylinder gasket with a skeleton rubber seal.

Figure 2 is a partially enlarged view of a cylinder gasket with a skeleton rubber sealing ring.

Figure 3 is an enlarged view of the cylinder gasket with a skeleton rubber sealing ring at the X position of the welding point.

Figure 4 is the A-A cross-sectional view of the cylinder gasket with the skeleton rubber sealing ring at the welding point.

Fig. 5 is a B-B sectional view in Fig. 2 .

FIG. 6 is a cross-sectional view of C-C in FIG. 2 .

Among the figure: 1, gasket body, 101, combustion hole, 102, bolt hole, 103, gear chamber, 104, positioning hole, 2, rubber sealing ring, 3, metal skeleton, 4, welding position, 5, gap.

Detailed ways

In order to clearly illustrate the technical features of the solution, the solution will be described below through a specific implementation manner.

As shown in the accompanying drawings, a cylinder gasket with a skeleton rubber sealing ring includes a metal gasket body 1, the metal gasket body 1 is welded and fixed with a metal skeleton 3, and rubber sealing rings 2 are vulcanized on both sides of the metal skeleton 3, There is a certain gap between the metal skeleton 3 and the gasket body 1, the gap is not more than 0.5mm, and the welding position on the gasket body 1 and the metal skeleton 3 is thinned and a welding position is reserved, and the metal skeleton 3. At the central position in the thickness direction of the gasket body 1, the rubber sealing rings 2 on both sides of the same position of the metal skeleton 3 have the same thickness. Among them, there are 3-5 welding spots between the gasket body 1 and the metal frame 3 . At the position away from the cylinder head bolts, gradually increase the thickness of the rubber sealing ring 2 to ensure the best sealing effect. On the side close to the cylinder head bolts, the thickness of the rubber sealing ring 2 is H1, and on the side away from the cylinder head bolts, the thickness of the primary rubber sealing ring 2 is H2, and the thickness of the middle area gradually transitions, as shown in the figure, H2>H1.

The undescribed technical features of the utility model can be realized by or using the prior art, so they will not be repeated here. Of course, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary skilled persons within the essential scope of the present utility model shall also belong to the protection scope of the present utility model.

Claims (3)

1. A cylinder gasket with a skeleton rubber sealing ring, comprising a metal gasket body, characterized in that, the metal gasket body is welded and fixed with a metal skeleton, the rubber sealing rings are vulcanized on both sides of the metal skeleton, and the metal gasket body There is a certain gap between the skeleton and the gasket body, and the position of the gasket body welded with the metal skeleton is thinned to reserve a welding position, and the metal skeleton is at the center of the thickness direction of the gasket body, so The rubber sealing rings on both sides at the same position of the metal skeleton have the same thickness. 2. The cylinder gasket with a skeleton rubber sealing ring according to claim 1, wherein the gap between the metal skeleton and the gasket body is not greater than 0.5mm. 3. The cylinder gasket with skeleton rubber sealing ring according to claim 1, wherein there are 3-5 welding spots between the gasket body and the metal skeleton.

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