High-temperature-resistant sealing ring

Abstract

The utility model discloses a high temperature resistant sealing ring, which relates to the field of sealing rings, and comprises an outer ring and a contact ring, the inner wall of the outer ring is provided with an annular groove corresponding to the contact ring, the outer side of the contact ring is connected with an elastic metal ring, and the outer wall of the elastic metal ring is connected with a plurality of compensation springs. The contact ring further comprises a rubber base layer, a reinforcing layer is connected to the side wall of the rubber base layer, a high-temperature-resistant layer is connected to the side wall of the reinforcing layer, and a wear-resistant layer is connected to the side wall of the high-temperature-resistant layer. The elastic metal ring is arranged on the outer side of the contact ring, the compensation spring is used for pushing the elastic metal ring, so that the elastic metal ring is gradually condensed, the abrasion-resistant layer on the contact ring abuts against the surface of a shaft workpiece all the time, and the sealing performance of the sealing ring can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sealing ring, especially a high temperature resistant sealing ring. BACKGROUND

[0002] Sealing ring is also called O-shaped sealing ring, which is a kind of sealing accessory, mainly including V-shaped sealing ring, U-shaped ring, O-shaped sealing ring, square sealing ring, Y-shaped sealing ring, YX-shaped sealing ring for hole, YX-shaped blocking ring for hole, YX-shaped blocking ring for shaft and YX-shaped sealing ring for shaft.

[0003] At present, the sealing ring is mostly used in cooperation with shaft parts, and the internal friction between the sealing ring and the shaft occurs after a period of use, which causes the internal wear of the sealing ring and affects the sealing effect of the sealing ring.

[0004] Therefore, it is necessary to provide a high temperature resistant sealing ring to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a high temperature resistant sealing ring, which solves the problems in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a high temperature resistant sealing ring, which comprises an outer ring and a contact ring, an annular groove corresponding to the contact ring is formed in the inner wall of the outer ring, an elastic metal ring is connected to the outer side of the contact ring, a plurality of compensation springs are connected to the outer wall of the elastic metal ring, the other ends of the compensation springs are connected to the inner wall of the outer ring, the contact ring further comprises a rubber base layer, a reinforcing layer is connected to the side wall of the rubber base layer, a high temperature resistant layer is connected to the side wall of the reinforcing layer, and a wear-resistant layer is connected to the side wall of the high temperature resistant layer.

[0007] Preferably, the high temperature resistant layer is made of polytetrafluoroethylene material.

[0008] Preferably, the wear-resistant layer is made of nitrile rubber material.

[0009] Preferably, the reinforcing layer is made of chloroprene rubber material.

[0010] Preferably, a plurality of uniformly distributed heat dissipation holes are formed in the surface of the outer ring.

[0011] The utility model has the following technical effects and advantages:

[0012] The elastic metal ring is arranged on the outer side of the contact ring, and the compensation springs are used to push the elastic metal ring, so that the elastic metal ring gradually shrinks, and the wear-resistant layer on the contact ring is always tightly pressed against the surface of the shaft part, which can effectively increase the sealing property of the sealing ring. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole structure schematic view of the utility model;

[0014] Figure 2 It is the sectional structure schematic view of the utility model Figure 1 ;

[0015] Figure 3 It is the A part enlarged structure schematic view of the utility model Figure 2 .

[0016] In the drawing: 1, outer ring; 2, contact ring; 21, rubber base layer; 22, reinforcing layer; 23, high temperature resistant layer; 24, wear resistant layer; 3, elastic metal ring; 4, compensation spring; 5, heat dissipation hole. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0018] The utility model provides a kind of high-temperature-resistant sealing ring as Figures 1-3 Shown in the drawing, including outer ring 1 and contact ring 2, the inner wall of outer ring 1 is equipped with annular groove corresponding with contact ring 2, the outside of contact ring 2 is connected with elastic metal ring 3, the outer wall of elastic metal ring 3 is connected with multiple compensation springs 4, another end of multiple compensation springs 4 is connected with the inner wall of outer ring 1, by being provided with elastic metal ring 3 on the outside of contact ring 2, and using compensation spring 4 to promote elastic metal ring 3, so that elastic metal ring 3 gradually shrinks, so that wear resistant layer 24 on contact ring 2 is always pressed against the surface of shaft workpiece, can effectively increase the sealing property of the sealing ring, contact ring 2 also includes rubber base layer 21, the side wall of rubber base layer 21 is connected with reinforcing layer 22, the side wall of reinforcing layer 22 is connected with high temperature resistant layer 23, the side wall of high temperature resistant layer 23 is connected with wear resistant layer 24.

[0019] The high temperature resistant layer 23 is made of polytetrafluoroethylene material, which can conveniently increase the high temperature resistance of the contact ring 2.

[0020] The wear resistant layer 24 is made of nitrile rubber material, which can conveniently increase the wear resistance of the contact ring 2.

[0021] The reinforcing layer 22 is made of chloroprene rubber material, which can conveniently increase the overall strength of the contact ring 2.

[0022] The surface of the outer ring 1 is provided with a plurality of uniformly distributed heat dissipation holes 5, which can facilitate heat dissipation of the contact ring 2.

[0023] The working principle of the utility model is as follows:

[0024] The elastic metal ring 3 is arranged outside the contact ring 2, and the compensation spring 4 is used to push the elastic metal ring 3, so that the elastic metal ring 3 is gradually contracted, so that the wear-resistant layer 24 on the contact ring 2 is always pressed against the surface of the shaft workpiece. The wear-resistant layer 24 can conveniently increase the wear resistance of the contact ring 2. The reinforcing layer 22 can conveniently increase the overall strength of the contact ring 2. The high-temperature-resistant layer 23 can conveniently increase the high-temperature resistance of the contact ring 2.

[0025] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A high temperature resistant seal ring comprising an outer ring and a contact ring, characterized in that: The inner wall of the outer ring is provided with an annular groove corresponding to the contact ring, the outer side of the contact ring is connected with an elastic metal ring, the outer wall of the elastic metal ring is connected with a plurality of compensation springs, the other ends of the plurality of compensation springs are connected with the inner wall of the outer ring, the contact ring further comprises a rubber base layer, the side wall of the rubber base layer is connected with a reinforcing layer, the side wall of the reinforcing layer is connected with a high-temperature-resistant layer, and the side wall of the high-temperature-resistant layer is connected with a wear-resistant layer.

2. The high-temperature-resistant sealing ring according to claim 1, characterized in that: The high-temperature-resistant layer is made of polytetrafluoroethylene material.

3. The high-temperature-resistant sealing ring according to claim 1, characterized in that: The wear-resistant layer is made of nitrile rubber material.

4. The high-temperature-resistant sealing ring according to claim 1, characterized in that: The reinforcing layer is made of chloroprene rubber material.

5. The high-temperature resistant sealing ring according to claim 1, characterized in that: The surface of the outer ring is provided with a plurality of uniformly distributed heat dissipation holes.

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