Star-shaped sealing ring and chain transmission system

Abstract

The utility model discloses a star-shaped sealing ring and a chain transmission system, and relates to the technical field of sealing rings, the star-shaped sealing ring comprises a ring body, the inner ring and the outer ring of the ring body are respectively provided with a first groove inwards; the two sides of the top and the two sides of the bottom of the ring body are inwards provided with at least two continuous second grooves. The number of the second grooves in the top face and the bottom face of the ring body is increased, more grease can be stored, when the sealing ring makes contact with the outer chain piece and the inner chain piece, the effect of lubricating a chain roller and a lining is achieved, abrasion between the chain roller and the lining is avoided, and then the service life of a chain is prolonged; and the contact area is reduced, the abrasion of the sealing ring is reduced, and the service life can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing rings, in particular to a star-shaped sealing ring and a chain transmission system. Background Art

[0002] The drive chain transmission system is mainly composed of a small sprocket, a large sprocket and a drive chain. Its main function is to continuously and effectively transmit the power of the engine to the rear wheel of the locomotive to achieve various operating conditions of the locomotive. The chain is assembled from multiple connecting components, and the components are composed of outer chain plates, inner chain plates, sleeves, pins and other parts. Due to the force, vibration or displacement between the components during operation, each part is prone to wear and damage.

[0003] Therefore, it is urgent to design a star-shaped sealing ring to improve lubricity and thus improve the wear resistance of the chain. Utility Model Content

[0004] The purpose of the utility model is to provide a star-shaped sealing ring and a chain transmission system to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above purpose, the utility model provides the following solution: The utility model provides a star-shaped sealing ring, including:

[0006] The ring body has a first groove formed inwardly on the inner ring and the outer ring of the ring body; the top and the bottom of the ring body have continuous second grooves formed inwardly on both sides, and at least two second grooves are provided.

[0007] The ring body is made of rubber material.

[0008] The top and bottom of the ring body and the surface of the second groove are all provided with an anti-slip layer.

[0009] The anti-slip layer is a PTFE coating.

[0010] A chain transmission system comprises: a plurality of chain links, wherein the sprocket comprises a pin shaft, a sleeve is disposed outside the pin shaft, and a chain roller is disposed outside the sleeve; an inner gasket and an outer gasket are installed on the pin shaft; a sealing ring is sealed between the inner gasket and the outer gasket; and the sealing ring is a star-shaped sealing ring.

[0011] The inner gasket, the outer gasket and the sealing ring are filled with grease.

[0012] The utility model discloses the following technical effects: by increasing the number of second grooves on the top surface and the bottom surface of the ring body, the application can collect more grease, so that when the sealing ring contacts the outer and inner chain plates, it can lubricate the chain rollers and bushings to avoid wear between the two, thereby extending the service life of the chain; it also reduces the contact area, reduces the wear of the sealing ring, and can also extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 This is a schematic diagram of chain assembly;

[0015] Figure 2 It is a top view of the star-shaped sealing ring;

[0016] Figure 3 It is a schematic diagram of the AA section of the star-shaped sealing ring;

[0017] Among them, 1. first groove; 2. second groove; 3. pin shaft; 4. sleeve; 5. chain roller; 6. inner gasket; 7. outer gasket. DETAILED DESCRIPTION

[0018] 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.

[0019] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] The utility model provides a star-shaped sealing ring, comprising:

[0021] The ring body, the inner ring and the outer ring are all provided with a first groove 1 inwardly; the top and the bottom sides of the ring body are provided with continuous second grooves 2 inwardly, and at least two second grooves 2 are provided.

[0022] The ring body is made of rubber material.

[0023] The top and bottom of the ring body and the surface of the second groove 2 are all provided with an anti-slip layer.

[0024] The anti-slip layer is PTFE coating.

[0025] A chain transmission system includes: a plurality of chain links, a sprocket including a pin shaft 3, a sleeve 4 is arranged outside the pin shaft 3, and a chain roller 5 is arranged outside the sleeve 4; an inner gasket 6 and an outer gasket 7 are installed on the pin shaft 3; a sealing ring is sealed between the inner gasket 6 and the outer gasket 7; the sealing ring is a star-shaped sealing ring.

[0026] The space between the inner gasket 6, the outer gasket 7 and the sealing ring is filled with grease.

[0027] In one embodiment of the present invention, the second groove 2 is provided with two consecutive Figure 2 and Figure 3 As shown, the inner diameter of the star-shaped sealing ring is 6.6 mm and the outer diameter is 10.8 mm; the minimum width of the star-shaped sealing ring is 0.94 and the maximum width is 1.4 mm.

[0028] In one embodiment of the utility model, a special anti-skid texture and a PTFE coating are provided on the contact portion between the sealing ring and the chain to reduce friction, reduce wear of the sealing ring and increase service life.

[0029] In one embodiment of the utility model, by increasing the number of second grooves 2, more grease can be collected, so that when the sealing ring contacts the outer and inner chain plates, it can lubricate the chain rollers and bushings to avoid wear between the two, thereby extending the service life of the chain.

[0030] Furthermore, the contact area is reduced, the wear of the sealing ring is reduced, and the service life is extended.

[0031] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A star-shaped sealing ring, characterized in that: include: A ring body, wherein the inner ring and the outer ring of the ring body are both provided with a first groove (1) inwardly; the top and the bottom of the ring body are provided with continuous second grooves (2) inwardly, and at least two second grooves (2) are provided.

2. A star-shaped sealing ring according to claim 1, characterized in that: The ring body is made of rubber material.

3. A star-shaped sealing ring according to claim 1, characterized in that: The top and bottom of the ring body and the surface of the second groove (2) are all provided with an anti-slip layer.

4. A star-shaped sealing ring according to claim 3, characterized in that: The anti-slip layer is a PTFE coating.

5. A chain transmission system, characterized in that: include: A plurality of chain links, wherein the chain comprises a pin shaft (3), the pin shaft (3) is provided with a sleeve (4) on its outer shell, and a chain roller (5) is provided outside the sleeve (4); an inner gasket (6) and an outer gasket (7) are installed on the pin shaft (3); a sealing ring is sealed between the inner gasket (6) and the outer gasket (7); the sealing ring is a star-shaped sealing ring as described in any one of claims 1 to 4 above.

6. A chain transmission system according to claim 5, characterized in that: Lubricating grease is filled between the inner gasket (6), the outer gasket (7) and the sealing ring.

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