Wear-resistant sealing ring

Abstract

The utility model discloses a wear-resisting sealing ring which comprises an inner ring, a connecting ring and an outer ring, the inner ring and the connecting ring are fixedly connected through a first connecting mechanism, and the connecting ring and the outer ring are fixedly connected through a second connecting mechanism. The first connecting mechanism comprises a first connecting groove formed in the connecting ring, a pair of first connecting retaining rings are installed at the corresponding positions of the lower end of the inner ring, and the first connecting retaining rings are inserted into the first connecting groove; the second connecting mechanism comprises a pair of second connecting retaining rings installed at the lower end of the connecting ring, second connecting grooves are formed in the corresponding positions of the upper end of the outer ring, and the second connecting retaining rings are inserted into the second connecting grooves. The maintenance cost can be effectively reduced, and the use requirements can be better met.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing rings, in particular to a wear-resistant sealing ring. Background Art

[0002] The sealing ring is fixed on one ring or washer of the bearing and contacts with another ring or washer or forms a narrow labyrinth gap to prevent the leakage of lubricating oil and the intrusion of foreign objects. The sealing ring is used to be installed on various mechanical equipment to seal in a static or moving state at a specified temperature and pressure and in different liquids and gases. The commonly used rubber sealing ring has poor wear resistance when used for sealing. When installed on the equipment for use, it is easy to be severely worn after a period of time, and the sealing effect of the engagement becomes worse.

[0003] For example, the authorization announcement number CN208203996U discloses a threaded wear-resistant sealing ring, the surface of which is coated with a PTFE layer; the utility model sets a threaded sealing ring according to the outer diameter of the sealing ring body, which can reduce the friction coefficient and improve the wear resistance in the piston seal.

[0004] During specific use, the inner and outer rings of the sealing ring have different degrees of wear. The sealing ring is an integral structure. However, when the sealing ring is in use, if it needs to be replaced, it can only be replaced as a whole, which increases the maintenance cost and cannot meet the use requirements well. Utility Model Content

[0005] The purpose of the utility model is to provide a wear-resistant sealing ring to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A wear-resistant sealing ring comprises: an inner ring, a connecting ring, and an outer ring, wherein the inner ring and the connecting ring are fixedly connected via a connecting mechanism 1, and the connecting ring and the outer ring are fixedly connected via a connecting mechanism 2; the connecting mechanism 1 comprises a connecting groove 1 provided on the connecting ring, a pair of connecting buckles 1 are installed at a corresponding position of the lower end of the inner ring, and the connecting buckles 1 are inserted into the connecting groove 1; the connecting mechanism 2 comprises a pair of connecting buckles 2 installed at the lower end of the connecting ring, a connecting groove 2 is provided at a corresponding position of the upper end of the outer ring, and the connecting buckles 2 are inserted into the connecting groove 2.

[0008] As a preferred solution, the inner ring, the connecting ring and the outer surfaces of the outer ring are all provided with a wear-resistant coating.

[0009] As a preferred solution, the cross-sections of the connecting buckle ring 1 and the connecting buckle ring 2 are both L-shaped, and the lower ends of the connecting buckle ring 1 and the connecting buckle ring 2 are also chamfered.

[0010] As a preferred solution, a connecting steel ring 1 is installed at a position corresponding to the connecting groove 1 in the connecting ring, and a connecting steel ring 2 is installed at a position corresponding to the connecting groove 2 in the outer ring.

[0011] As a preferred solution, an inner sealing ring is fixed on the inner side of the inner ring, and sealing protrusions are fixed on the upper and lower ends of the inner ring.

[0012] As a preferred solution, connecting protrusions are installed at both upper and lower ends of the connecting ring.

[0013] As a preferred solution, sealing protrusions 2 are fixed to both upper and lower ends of the outer ring, and an outer sealing ring is also fixed to the outside of the outer ring.

[0014] Compared with the prior art, the beneficial effect of the utility model is that by setting the connection mechanism 1 to cooperate with the connection mechanism 2, the inner ring, the connection ring and the outer ring can be assembled into a complete sealing ring, which is convenient for disassembly. When replacement is needed, only the severely worn part needs to be disassembled and replaced, which can effectively reduce maintenance costs and better meet the use requirements. The utility model has a simple structure, can be disassembled and assembled, and severely worn parts can be replaced according to actual needs, which can effectively reduce maintenance costs and better meet the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a wear-resistant sealing ring;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of a wear-resistant sealing ring;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the inner ring of a wear-resistant sealing ring;

[0018] Figure 4 A schematic diagram of the three-dimensional structure of a connecting ring of a wear-resistant sealing ring from a first-person perspective;

[0019] Figure 5 A schematic diagram of the third-dimensional structure of a connecting ring of a wear-resistant sealing ring from a second viewing angle;

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the outer ring of a wear-resistant sealing ring.

[0021] In the figure: 1-inner ring, 11-inner sealing ring, 12-sealing protrusion 1, 2-connecting ring, 21-connecting protrusion, 22-connecting steel ring 1, 3-outer ring, 31-outer sealing ring, 32-sealing protrusion 2, 33-connecting steel ring 2, 4-connecting mechanism 1, 41-connecting buckle ring 1, 42-connecting groove 1, 5-connecting mechanism 2, 51-connecting buckle ring 1, 52-connecting groove 2. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example: See Figures 1 to 6 A wear-resistant sealing ring, comprising: an inner ring 1, a connecting ring 2, and an outer ring 3, wherein the inner ring 1 and the connecting ring 2 are fixedly connected by a connecting mechanism 1 4, and the connecting ring 2 and the outer ring 3 are fixedly connected by a connecting mechanism 2 5; the connecting mechanism 1 4 comprises a connecting groove 1 42 provided on the connecting ring 2, a pair of connecting buckle rings 1 41 are installed at the corresponding position of the lower end of the inner ring 1, and the connecting buckle rings 1 41 are inserted into the connecting groove 1 42; the connecting mechanism 2 5 comprises a pair of connecting buckle rings 2 51 installed at the lower end of the connecting ring 2, a connecting groove 2 52 is provided at the corresponding position of the upper end of the outer ring 3, and the connecting buckle rings 2 51 are inserted into the connecting groove 2 52. In this embodiment, the cross-sections of the connecting groove 1 42 and the connecting groove 2 52 are both "convex" shaped.

[0024] Working principle of the utility model: during installation, align the connecting buckle ring 41 at the lower end of the inner ring 1 with the connecting groove 42, and then press downward to make a pair of connecting buckle rings 41 close to each other, so as to pass through the socket of the connecting groove 42, and then, restore the connecting buckle ring 41, so that the protrusion at the end of the connecting buckle ring 41 is buckled in the connecting groove 42, and the preliminary installation is completed;

[0025] Then align the connecting buckle 2 51 on the connecting ring 2 with the connecting groove 2 52, and then press the connecting ring 2, so that the connecting buckle 2 51 is inserted into the connecting groove 2 52, and the protrusion at the end of the connecting buckle 2 51 is buckled in the connecting groove 2 52, and the installation work is completed. The operation is simple and the disassembly is convenient, so that different positions can be replaced according to actual needs, which can effectively reduce maintenance costs.

[0026] In order to improve the wear resistance of the sealing ring, the outer surfaces of the inner ring 1, the connecting ring 2 and the outer ring 3 are all provided with a wear-resistant coating. In this embodiment, the wear-resistant coating can be a polytetrafluoroethylene coating, which can effectively improve the surface strength of the sealing ring and extend its service life.

[0027] As a further solution, the cross-sections of the connecting buckle ring 1 41 and the connecting buckle ring 2 51 are both L-shaped, and the lower ends of the connecting buckle ring 1 41 and the connecting buckle ring 2 51 are also provided with chamfers. The connecting chamfers facilitate the insertion of the connecting buckle ring 1 41 into the connecting groove 1 42 and the connecting buckle ring 2 51 into the connecting groove 2 52.

[0028] As a further solution, a connecting steel ring 1 22 is installed at a position corresponding to the connecting groove 1 42 in the connecting ring 2 , and a connecting steel ring 2 33 is installed at a position corresponding to the connecting groove 2 52 in the outer ring 3 .

[0029] By providing the connecting steel ring 1 22 and the connecting steel ring 2 33, the connection slot 1 42 and the connection slot 2 52 can be effectively prevented from being deformed, thereby improving the connection strength.

[0030] As a further solution, an inner sealing ring 11 is fixed on the inner side of the inner ring 1, and the inner sealing ring 11 can improve the sealing effect of the inner side. Sealing protrusions 12 are fixed on the upper and lower ends of the inner ring 1, and the sealing protrusions 12 can improve the sealing effects on the upper and lower sides of the inner ring. Connecting protrusions 21 are installed on the upper and lower ends of the connecting ring 2, and the connecting protrusions 21 can improve the sealing effects on the upper and lower sides of the connecting ring 2. Sealing protrusions 2 32 are fixed on the upper and lower ends of the outer ring 3, and an outer sealing ring 31 is also fixed on the outer side of the outer ring 3. Sealing protrusions 2 32 can improve the sealing effect on the outer side of the outer ring 3, and the outer sealing ring 31 can improve the sealing effects on the upper and lower sides of the outer ring 3.

[0031] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

Claims

1. A wear-resistant sealing ring, characterized in that: include: An inner ring (1), a connecting ring (2), and an outer ring (3), wherein the inner ring (1) and the connecting ring (2) are fixedly connected via a first connecting mechanism (4), and the connecting ring (2) and the outer ring (3) are fixedly connected via a second connecting mechanism (5); The connecting mechanism (4) comprises a connecting groove (42) provided on the connecting ring (2), a pair of connecting buckle rings (41) are installed at corresponding positions on the lower end of the inner ring (1), and the connecting buckle rings (41) are inserted into the connecting groove (42); The second connecting mechanism (5) comprises a pair of second connecting buckle rings (51) mounted at the lower end of the connecting ring (2), a second connecting groove (52) is provided at a corresponding position on the upper end of the outer ring (3), and the second connecting buckle ring (51) is inserted into the second connecting groove (52).

2. A wear-resistant sealing ring according to claim 1, characterized in that: The outer surfaces of the inner ring (1), the connecting ring (2) and the outer ring (3) are all provided with a wear-resistant coating.

3. A wear-resistant sealing ring according to claim 2, characterized in that: The cross-sections of the connecting buckle ring 1 (41) and the connecting buckle ring 2 (51) are both L-shaped, and the lower ends of the connecting buckle ring 1 (41) and the connecting buckle ring 2 (51) are also chamfered.

4. A wear-resistant sealing ring according to claim 3, characterized in that: A connecting steel ring 1 (22) is installed at a position corresponding to the connecting groove 1 (42) in the connecting ring (2), and a connecting steel ring 2 (33) is installed at a position corresponding to the connecting groove 2 (52) in the outer ring (3).

5. A wear-resistant sealing ring according to claim 4, characterized in that: An inner sealing ring (11) is fixed on the inner side of the inner ring (1), and sealing protrusions (12) are fixed on the upper and lower ends of the inner ring (1).

6. A wear-resistant sealing ring according to claim 5, characterized in that: The upper and lower ends of the connection ring (2) are both provided with connection protrusions (21).

7. A wear-resistant sealing ring according to claim 6, characterized in that: The upper and lower ends of the outer ring (3) are both fixed with sealing protrusions 2 (32), and the outer side of the outer ring (3) is also fixed with an outer sealing ring (31).

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