Wear-resistant antifouling silicone rubber sealing ring

Abstract

The utility model relates to a sealing ring, belongs to the technical field of sealing rings, and particularly relates to a wear-resistant antifouling silicon rubber sealing ring which comprises an inner ring and two adapter rings, the two adapter rings are located on the upper side and the lower side of the inner ring respectively, and the inner wall of the inner ring is rotationally connected with the adapter rings. The balls are uniformly distributed between the contact surfaces of the inner ring and the adapter ring; the protection ring is connected with the two adapter rings, and mounting grooves used for mounting are formed in the surfaces of the adapter rings; the shape of the wear-resistant ceramic plate is matched with that of the mounting groove, and the wear-resistant ceramic plate is attached to the mounting groove; the outer isolation cover and the outer isolation cover are arranged on the outer side of the protection ring; the sealing ring achieves the effects of reducing friction loss between the sealing ring and a mechanical part and guaranteeing the service life of the protection ring, and solves the problems that an existing rubber ring is prone to being corroded by the external environment during use and the service life is shortened due to friction between the existing rubber ring and a connecting part.

Description

TECHNICAL FIELD

[0001] The utility model relates to sealing ring technical field, especially a kind of wear-resistant and dirt-proof silicone rubber sealing ring. BACKGROUND

[0002] Sealing ring is very common in sealing element, used to isolate part from the environment outside the surface of sealing ring to achieve isolation protection effect.

[0003] The existing sealing ring, most of which are made of rubber, but due to the use process, the surface of the sealing ring will contact with external links, and corrosion may occur;When the sealing ring is installed in the limiting groove, the sealing ring itself will also rub with the installation part, which will cause damage or deformation of the sealing ring, affecting its sealing performance, so a wear-resistant and dirt-proof silicone rubber sealing ring is proposed to solve the above problems. SUMMARY

[0004] To solve the above technical problems, the utility model provides a kind of wear-resistant and dirt-proof silicone rubber sealing ring, and the wear-resistant ceramic sheet embedded in the installation groove can prevent the friction between the protective ring and the installation part from damaging the protective ring, ensuring the service life of the protective ring;At the same time, thanks to the design of the ball, the rotation between the inner ring and the adapter ring will also be smoother, reducing the friction resistance between the inner ring and the adapter ring, further improving the use effect and service life.

[0005] The technical solution for achieving the purpose of the utility model is as follows: a kind of wear-resistant and dirt-proof silicone rubber sealing ring, including inner ring and adapter ring, the number of adapter ring is two and is located on the upper and lower sides of inner ring, the inner wall of inner ring is rotatably connected with adapter ring, further comprising:

[0006] A plurality of balls, a plurality of balls are evenly distributed between the contact surfaces of inner ring and adapter ring;

[0007] Protective ring, the protective ring is connected with two adapter rings, the surface of adapter ring is provided with installation groove for installation;

[0008] Wear-resistant ceramic sheet, the shape of wear-resistant ceramic sheet is matched with installation groove, and the wear-resistant ceramic sheet is matched with installation groove;

[0009] Outer isolation cover, the outer isolation cover is arranged on the outer side of protective ring.

[0010] In some embodiments, the middle part of the inner ring extends outward and forms a containing groove for containing the ball on both sides, the outer diameter of the outwardly extending part of the inner ring is the same as the outer diameter of the adapter ring, and the outer surface of the inner ring is rotatably connected with the adapter ring.

[0011] In some embodiments, the bottom of the adapter ring extends downward and the extension distance is consistent with the depth of the accommodating groove of the inner ring, the ball is located in the accommodating groove, and the ball is in contact with the outer surface of the extension of the adapter ring and the inner wall of the accommodating groove of the inner ring.

[0012] In some embodiments, the inner wall of the protection ring is rotationally connected with the outer surface of the accommodating groove of the inner ring.

[0013] Compared with the prior art, the utility model has the following remarkable advantages:

[0014] Firstly, the wear-resistant ceramic piece is embedded in the installation groove during installation, so that the wear-resistant ceramic piece can prevent the friction between the protection ring and the installation component from damaging the protection ring, and ensure the service life of the protection ring.

[0015] Secondly, the inner ring, the adapter ring and the ball are arranged, when the inner ring is inserted into a mechanical component such as a transmission shaft that needs to rotate, when the transmission shaft rotates, the inner ring will rotate together with the transmission shaft because the inner ring and the adapter ring are rotationally connected, so that the inner ring and the transmission shaft will not be disengaged, and the rotation between the inner ring and the adapter ring will be smoother due to the design of the ball, the friction between the inner ring and the adapter ring is reduced, and the service life is further improved.

[0016] The problems that the existing rubber ring is easily corroded by the external environment and the service life is reduced due to the friction with the connecting component are solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be explained further in combination with the drawings and embodiments:

[0018] Figure 1 is the front view structure schematic diagram provided by the utility model in an embodiment;

[0019] Figure 2 is the outer layer protection cover (explosion) structure schematic diagram provided by the utility model in an embodiment;

[0020] Figure 3 is the protection ring (cross section) structure schematic diagram provided by the utility model in an embodiment;

[0021] Figure 4 is the inner ring and adapter ring (inner ring cross section) structure schematic diagram provided by the utility model in an embodiment.

[0022] EXPLANATION OF REFERENCE NUMERALS:

[0023] 1. Inner ring; 2. Adapter ring; 3. Ball bearing; 4. Protective ring; 5. Mounting groove; 6. Wear-resistant ceramic plate; 7. Outer isolation cover; 8. Receiving groove. Detailed Implementation

[0024] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0025] This utility model provides an improved wear-resistant and stain-resistant silicone rubber sealing ring. The technical solution of this utility model is as follows:

[0026] like Figure 1 As shown, a wear-resistant and anti-fouling silicone rubber sealing ring includes an inner ring 1 and a transition ring 2. There are two transition rings 2, which are located on the upper and lower sides of the inner ring 1 respectively. The shapes of the two transition rings 2 are adapted to the shape of the inner ring 1. The inner wall of the inner ring 1 is rotatably connected to the transition ring 2. The ring also includes:

[0027] Multiple balls 3 are evenly distributed between the contact surfaces of the inner ring 1 and the transition ring 2. The installation method of the balls 3 is similar to that of a bearing, and they will not be misaligned after being embedded.

[0028] The protective ring 4 is connected to two adapter rings 2. The surface of the adapter ring 2 is provided with an installation groove 5 for installation. After the inner ring 1 and the adapter ring 2 are installed, the protective ring 4 can be connected with glue or directly vulcanized to the adapter ring 2.

[0029] Wear-resistant ceramic sheet 6, the shape of wear-resistant ceramic sheet 6 is adapted to the mounting groove 5, and wear-resistant ceramic sheet 6 fits into the mounting groove 5;

[0030] The outer isolation cover 7 is located outside the protective ring 4. The outer isolation cover covers the inner ring 1 horizontally and its inner diameter matches the inner diameter of the inner ring 1. It wraps around the end face of the wear-resistant ceramic sheet 6 vertically.

[0031] like Figure 2 and Figure 3 As shown, in one embodiment, the middle portion of the inner ring 1 extends outward and forms receiving grooves 8 on both sides for accommodating the balls 3. The outer diameter of the outwardly extending portion of the inner ring 1 is the same as the outer diameter of the adapter ring 2, and the outer surface of the inner ring 1 is rotatably connected to the adapter ring 2.

[0032] In an embodiment, the bottom of the adapter ring 2 extends downward and the extension distance is consistent with the depth of the accommodating groove 8 of the inner ring 1, and the ball 3 is located in the accommodating groove 8 and simultaneously abuts against the outer surface of the extension of the adapter ring 2 and the inner wall of the accommodating groove 8 of the inner ring 1.

[0033] As shown in the drawings, in an embodiment, the inner wall of the protection ring 4 is rotationally connected with the outer surface of the accommodating groove 8 of the inner ring 1. Figure 4

[0034] Specific working method is: when the wear-resistant and anti-fouling silicone rubber sealing ring is used, the whole sealing ring is installed by using the installation groove 5, the wear-resistant ceramic sheet 6 embedded at the installation groove 5 can prevent the damage of the protection ring 4 caused by the friction between the protection ring 4 and the installation part, ensure the service life of the protection ring 4, the outer layer isolation cover 7 arranged outside can also prevent the corrosion of the sealing ring caused by the external environment, when the inner ring 1 is inserted into the mechanical part such as the transmission shaft which needs to be rotated, when the transmission shaft is rotated, since the inner ring 1 is rotationally connected with the adapter ring 2, the inner ring 1 will rotate together with the transmission shaft, ensure that the inner ring 1 and the transmission shaft will not be dislocated and separated, at the same time, thanks to the design of the ball 3, the rotation between the inner ring 1 and the adapter ring 2 will be smoother, reduce the friction resistance between the inner ring 1 and the adapter ring 2, further improve the use effect and the service life.

[0035] The technical means disclosed by the utility model scheme is not only limited to the technical means disclosed by the above technical means, but also includes the technical scheme composed by the above technical features and equivalent replacement. The unfinished matters of the utility model belong to the common knowledge of the person skilled in the art.​

Claims

1. A wear resistant and anti-fouling silicone rubber seal ring, comprising an inner ring (1) and an adapter ring (2), characterized in that: The number of the adapter rings (2) is two and they are located on the upper and lower sides of the inner ring (1), the inner wall of the inner ring (1) is rotationally connected with the adapter rings (2), and the adapter rings (2) further comprise; A plurality of balls (3) are uniformly distributed between the contact surfaces of the inner ring (1) and the adapter rings (2); A protective ring (4) is connected with the two adapter rings (2), the surface of the adapter ring (2) is provided with a mounting groove (5) for mounting; A wear-resistant ceramic sheet (6) is provided, which is matched with the mounting groove (5) and is in close contact with the mounting groove (5); An outer isolation cover (7) is arranged outside the protective ring (4).

2. The wear resistant and stain resistant silicone rubber seal ring according to claim 1, characterized in that: The middle part of the inner ring (1) extends outward and forms a containing groove (8) on both sides for containing the balls (3), the outer diameter of the outwardly extending part of the inner ring (1) is the same as the outer diameter of the adapter ring (2), and the outer surface of the inner ring (1) is rotationally connected with the adapter ring (2).

3. A wear resistant and stain resistant silicone rubber seal ring according to claim 2, characterized in that: The bottom of the adapter ring (2) extends downward and the extension distance is consistent with the depth of the containing groove (8) of the inner ring (1), the balls (3) are located in the containing groove (8), and the balls (3) are in close contact with the outer surface of the extended part of the adapter ring (2) and the inner wall of the containing groove (8) of the inner ring (1).

4. The wear resistant and stain resistant silicone rubber seal ring according to claim 1, characterized in that: The inner wall of the protective ring (4) is rotationally connected with the outer surface of the containing groove (8) of the inner ring (1).

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