Double-lip sealing ring bearing

Abstract

The utility model discloses a double-lip sealing ring bearing which comprises a bearing outer ring and a bearing inner ring, a first sealing groove is formed in the bearing outer ring, a second sealing groove is formed in the bearing inner ring, a third sealing groove is further formed in the side face of the bearing inner ring, and the second sealing groove is formed in the side face of the bearing inner ring. A double-lip sealing ring is arranged between the bearing inner ring and the bearing outer ring, the double-lip sealing ring comprises a first sealing lip which abuts against the first sealing groove in a sealing mode, and by arranging a second sealing lip and a third sealing lip, after the second sealing lip is abraded, the third sealing lip can form a new seal; and the sealing life of the bearing is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of sealing rings, in particular to a double-lip sealing ring bearing. Background Art

[0002] The traditional single-lip bearing seal ring will gradually wear out with long-term use, resulting in a short service life. The utility model provides a double-lip seal ring with a longer service life to solve the above problem. Utility Model Content

[0003] In order to overcome the defects in the above-mentioned prior art, the utility model provides a double-lip sealing ring bearing. By setting a second sealing lip and a third sealing lip, after the second sealing lip is worn, the third sealing lip can form a new seal, thereby extending the sealing life of the bearing.

[0004] Technical Solution

[0005] A double-lip sealing ring bearing comprises a bearing outer ring and a bearing inner ring, wherein the bearing outer ring is provided with a first sealing groove, the bearing inner ring is provided with a second sealing groove, a third sealing groove is further provided on the side surface of the bearing inner ring, and a double-lip sealing ring is provided between the bearing inner ring and the bearing outer ring.

[0006] Furthermore, the double-lip sealing ring includes a first sealing lip abutting and sealing against the first sealing groove.

[0007] Furthermore, the double-lip sealing ring is also provided with a second sealing lip which abuts and seals against the third sealing groove.

[0008] Furthermore, the double-lip sealing ring is provided with a third sealing lip capable of abutting and sealing with the second sealing groove.

[0009] Furthermore, a frame is provided inside the double-lip sealing ring.

[0010] Furthermore, the second sealing lip of the double-lip sealing ring has a tendency to approach the inner side wall of the second sealing groove, but is restricted by the third sealing groove.

[0011] Furthermore, after the second sealing lip is worn to a certain size, the third sealing lip abuts against the second sealing groove to form a seal.

[0012] Beneficial Effects

[0013] Compared with the prior art, the utility model has the following beneficial effects: by providing the second sealing lip and the third sealing lip, after the second sealing lip is worn, the third sealing lip can form a new seal, thereby extending the sealing life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a double-lip sealing ring bearing.

[0015] Reference Numbers

[0016] Bearing outer ring 1, bearing inner ring 2, frame 3, first sealing groove 4, double-lip sealing ring 5, third sealing groove 6, third sealing lip 7, second sealing groove 8, second sealing lip 9, first sealing lip 10. DETAILED DESCRIPTION

[0017] In order to better illustrate the content of the utility model, the following is a description with reference to the accompanying drawings and implementation examples:

[0018] have Figure 1 As shown, the utility model discloses a double-lip sealing ring bearing, including a bearing outer ring 1 and a bearing inner ring 2, wherein the bearing outer ring 1 is provided with a first sealing groove 4, the bearing inner ring 2 is provided with a second sealing groove 8, a third sealing groove 6 is further provided on the side of the bearing inner ring 2, and a double-lip sealing ring 5 is provided between the bearing inner ring 2 and the bearing outer ring 1.

[0019] Furthermore, the double-lip sealing ring 5 includes a first sealing lip 10 abutting and sealing against the first sealing groove 4 .

[0020] Furthermore, the double-lip sealing ring 5 is also provided with a second sealing lip 9 which abuts against and seals the third sealing groove 6 .

[0021] Furthermore, the double-lip sealing ring 5 is provided with a third sealing lip 7 capable of abutting and sealing with the second sealing groove 8 .

[0022] Furthermore, a skeleton 3 is provided inside the double-lip sealing ring 5 .

[0023] Furthermore, the second sealing lip 9 of the double-lip sealing ring 5 has a tendency to approach the inner wall of the second sealing groove 8 , but is restricted by the third sealing groove 6 .

[0024] Furthermore, after the second sealing lip 9 is worn to a certain size, the third sealing lip 7 abuts against the second sealing groove 8 to form a seal.

[0025] Specifically, after the bearing is used for a period of time, the second sealing lip 9 is gradually worn, so that the third sealing lip 7 gradually approaches the second sealing groove 8 to form a new seal, thereby extending the service life of the bearing.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the technical solution of the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solution recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solution from the spirit and scope of the technical solution of each embodiment of the utility model.

Claims

1. A double-lip seal ring bearing, characterized in that: The invention comprises a bearing outer ring (1) and a bearing inner ring (2), wherein the bearing outer ring (1) is provided with a first sealing groove (4), the bearing inner ring (2) is provided with a second sealing groove (8), a third sealing groove (6) is also provided on the side of the bearing inner ring (2), a double-lip sealing ring (5) is provided between the bearing inner ring (2) and the bearing outer ring (1), the double-lip sealing ring (5) is also provided with a second sealing lip (9) abutting and sealing with the third sealing groove (6), the second sealing lip (9) of the double-lip sealing ring (5) has a tendency to approach the inner side wall of the second sealing groove (8), but is restricted by the third sealing groove (6).

2. A double-lip seal ring bearing according to claim 1, characterized in that: The double-lip sealing ring (5) comprises a first sealing lip (10) which abuts and seals against the first sealing groove (4).

3. A double-lip seal ring bearing according to claim 2, characterized in that: The double-lip sealing ring (5) is provided with a third sealing lip (7) capable of abutting and sealing with the second sealing groove (8).

4. A double-lip seal ring bearing according to claim 3, characterized in that: A framework (3) is arranged inside the double-lip sealing ring (5).

5. A double-lip seal ring bearing according to claim 4, characterized in that: After the second sealing lip (9) is worn to a certain size, the third sealing lip (7) abuts against the second sealing groove (8) to form a seal.

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