Self-lubricating rubber sealing ring

Abstract

The utility model discloses a self-lubricating rubber sealing ring which comprises an annular cavity rubber ring, a hemming ring is connected to the edge of the inner side of the annular cavity rubber ring in a surrounding mode, an inner ring ring pad is fixedly connected to the interior of the annular cavity rubber ring, a separation pad is fixedly connected to the interior of the annular cavity rubber ring in the radial direction, and a lubricating oil bag is arranged in the annular cavity rubber ring. An inner ring oil outlet hole is formed in one end of the inner ring ring gasket in a penetrating mode, an outer ring oil outlet hole is formed in the outer side of the ring cavity rubber ring in a penetrating mode, the top face of the ring cavity rubber ring is fixedly connected with an upper edge closing ring gasket, and the bottom face of the ring cavity rubber ring is fixedly connected with a lower edge closing ring gasket. The hollow ring structure in the ring cavity rubber ring can wrap and cling to the end face of the ferrule better along with the pressing force, the sealing effect is better, and the application range is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing ring equipment, in particular to a self-lubricating rubber sealing ring. Background Art

[0002] A rubber sealing ring is an annular cover composed of one or several parts, mainly used in various mechanical equipment to play a key sealing role. The rubber sealing ring is fixed on a race or washer of a bearing and contacts or forms a narrow labyrinth gap with another race or washer to prevent lubricating oil from leaking out and foreign objects from invading.

[0003] Most of the existing rubber sealing rings are set as single-layer rubber structures, and the elasticity of the rubber material itself is used to provide the sealing performance with the race or washer. However, the elasticity of this structure is limited, and it is difficult to flexibly adapt to the race with uneven port surfaces, and the sealing performance is difficult to guarantee, which cannot meet the actual use requirements. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem that most of the existing rubber sealing rings are set as single-layer rubber structures, and the elasticity of the rubber material itself is used to provide the sealing performance with the race or washer. However, the elasticity of this structure is limited, and it is difficult to flexibly adapt to the race with uneven port surfaces, and the sealing performance is difficult to guarantee, which cannot meet the actual use requirements, and to provide a self-lubricating rubber sealing ring.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a self-lubricating rubber sealing ring, including: an annular cavity rubber ring, a curled edge ring is circumferentially connected to the inner edge of the annular cavity rubber ring, an inner ring gasket is fixedly connected inside the annular cavity rubber ring, a partition gasket is fixedly connected radially inside the annular cavity rubber ring, a lubricating oil packet is arranged inside the annular cavity rubber ring, an inner ring oil outlet hole is opened through one end of the inner ring gasket, an outer ring oil outlet hole is opened through the outside of the annular cavity rubber ring, an upper edge-receiving gasket is fixedly connected to the top surface of the annular cavity rubber ring, and a lower edge-receiving gasket is fixedly connected to the bottom surface of the annular cavity rubber ring.

[0006] As a further scheme of the utility model: the annular cavity rubber ring is set as a ring structure with a hollow inner cavity made of rubber material, and the inner side of the ring is open. Curled edge ring structures are fixedly connected to the upper and lower ring edges at the open end of the inner side of the annular cavity rubber ring, and the ends of the two curled edge ring structures are both curled inwards.

[0007] As a further scheme of the utility model: the inner opening of the annular cavity rubber ring is fixedly connected through the inner ring gasket to form a sealed annular cavity structure inside.

[0008] As a further solution of the present utility model: A number of evenly distributed spacer pad structures are fixedly connected along the radial direction of the annular cavity rubber ring between the annular cavity rubber ring and the inner ring gasket, and the inner part of the annular cavity rubber ring is divided into a number of independent segmented cavities by the number of spacer pads.

[0009] As a further solution of the present utility model: Lubricating oil packet structures are arranged inside the segmented cavities separated by the number of spacer pads in the inner part of the annular cavity rubber ring, and the lubricating oil packet is composed of lubricating oil and a plastic capsule for wrapping the lubricating oil.

[0010] As a further solution of the present utility model: The number of inner ring oil outlet holes and outer ring oil outlet holes are both provided with a number of groups, and are arranged oppositely along the radial direction of the annular cavity rubber ring.

[0011] As a further solution of the present utility model: Both the upper edge-receiving gasket and the lower edge-receiving gasket are arranged as annular rubber gasket structures with edges curled inward, and are symmetrically arranged on the top surface and the bottom surface of the annular cavity rubber ring respectively.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. In the present utility model, the annular cavity rubber ring is pressed between the ferrules. Structurally, it is improved from the traditional single-layer rubber gasket structure to a double-layer annular rubber ring structure with a cavity inside. The hollow ring structure inside the annular cavity rubber ring also has a stronger wrapping and tightness against the end face of the ferrule with the pressing force, better sealing effect, and wider application range;

[0014] 2. A number of spacer pad structures for support are arranged inside the annular cavity rubber ring, dividing the inside of the ring into several sections. A lubricating oil packet is arranged in each section. Due to the structural characteristics of the ring, when it is used, the side with greater force, that is, the side with greater friction, will cause the lubricating oil packet on that side to be more easily extruded. Internal and external synchronous lubrication is carried out through the inner ring oil outlet holes and outer ring oil outlet holes opened on both sides, which is convenient for improving the lubrication effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural schematic diagram of a self-lubricating rubber sealing ring described in the present utility model;

[0016] Figure 2 is the structural schematic diagram of a spacer pad in a self-lubricating rubber sealing ring described in the present utility model;

[0017] Figure 3 is the structural schematic diagram of a lubricating oil packet in a self-lubricating rubber sealing ring described in the present utility model.

[0018] In the figure: 1. Annular cavity rubber ring; 2. Curled edge ring; 3. Inner ring gasket; 4. Separator gasket; 5. Lubricating oil packet; 6. Inner ring oil outlet hole; 7. Outer ring oil outlet hole; 8. Upper edge-receiving ring gasket; 9. Lower edge-receiving ring gasket. Specific embodiments

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The embodiments of the present invention will be described below according to its overall structure.

[0021] Refer to Figures 1 to 3 , in the embodiments of the present invention, a self-lubricating rubber sealing ring includes: an annular cavity rubber ring 1, a curled edge ring 2 is connected around the inner edge of the annular cavity rubber ring 1, an inner ring gasket 3 is fixedly connected inside the annular cavity rubber ring 1, a separator gasket 4 is fixedly connected radially inside the annular cavity rubber ring 1, a lubricating oil packet 5 is arranged inside the annular cavity rubber ring 1, an inner ring oil outlet hole 6 is penetrated and opened at one end of the inner ring gasket 3, an outer ring oil outlet hole 7 is penetrated and opened on the outside of the annular cavity rubber ring 1, an upper edge-receiving ring gasket 8 is fixedly connected to the top surface of the annular cavity rubber ring 1, and a lower edge-receiving ring gasket 9 is fixedly connected to the bottom surface of the annular cavity rubber ring 1.

[0022] Refer to Figures 1 to 3, the annular cavity rubber ring 1 is set as an annular ring structure with a hollow inner cavity made of rubber material, and the inner side of the ring is open. The upper and lower ring edges at the inner opening of the annular cavity rubber ring 1 are fixedly connected with the curled edge ring 2 structures, and the ends of the two groups of curled edge ring 2 structures are both curled inward. The inner opening of the annular cavity rubber ring 1 is fixedly connected to the inner ring gasket 3 to form a sealed annular cavity structure. Along the radial direction of the annular cavity rubber ring 1, several groups of evenly distributed partition gaskets 4 structures are fixedly connected between the annular cavity rubber ring 1 and the inner ring gasket 3. The several groups of partition gaskets 4 divide the inside of the annular cavity rubber ring 1 into several independent segmented cavities. Lubricating oil packets 5 structures are arranged inside the segmented cavities separated by the several groups of partition gaskets 4 in the annular cavity rubber ring 1. The lubricating oil packet 5 is composed of lubricating oil and a plastic capsule for wrapping the lubricating oil. The number of inner ring oil outlets 6 and outer ring oil outlets 7 are both set to several groups, and they are arranged oppositely along the radial direction of the annular cavity rubber ring 1. The upper edge curling gasket 8 and the lower edge curling gasket 9 are both set as annular rubber gasket structures with edges curling inward, and they are symmetrically arranged on the top and bottom surfaces of the annular cavity rubber ring 1 respectively.

[0023] Adopting the above scheme: The annular cavity rubber ring 1 is pressed between the ferrules. Structurally, it is improved from the traditional single-layer rubber gasket structure to a double-layer annular rubber ring structure with a hollow inner cavity. Inside the annular cavity rubber ring 1, several groups of partition gaskets 4 structures for support are arranged, dividing the inside of the ring into several sections. A lubricating oil packet 5 is arranged in each section. Due to the structural characteristics of the ring, when in use, the side with greater force, that is, the side with greater friction, the lubricating oil packet 5 on that side is more likely to be extruded. Through the inner ring oil outlets 6 and outer ring oil outlets 7 opened on both the inner and outer sides, internal and external synchronous lubrication is carried out, which is convenient for improving the lubrication effect. Moreover, the hollow annular structure inside the annular cavity rubber ring 1 also has a stronger wrapping and tightness to the end face of the ferrule with the pressing force, better sealing effect, and a wider application range.

[0024] The working principle of the present utility model is: When in use, the annular cavity rubber ring 1 is pressed between the ferrules. Structurally, it is improved from the traditional single-layer rubber gasket structure to a double-layer annular rubber ring structure with a hollow inner cavity. Inside the annular cavity rubber ring 1, several groups of partition gaskets 4 structures for support are arranged, dividing the inside of the ring into several sections. A lubricating oil packet 5 is arranged in each section.Due to the structural characteristics of the ring, when in use, the side with greater force, that is, the side with greater friction, the lubricating oil packet 5 on that side is more likely to be extruded. Through the inner ring oil outlets 6 and outer ring oil outlets 7 opened on both the inner and outer sides, internal and external synchronous lubrication is carried out, which is convenient for improving the lubrication effect. Moreover, the hollow annular structure inside the annular cavity rubber ring 1 also has a stronger wrapping and tightness to the end face of the ferrule with the pressing force, better sealing effect, and a wider application range.

[0025] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A self-lubricating rubber sealing ring, characterized in that Comprising: A ring cavity rubber ring (1), a curled edge ring (2) is circumferentially connected to the inner edge of the ring cavity rubber ring (1), an inner ring gasket (3) is fixedly connected inside the ring cavity rubber ring (1), a partition gasket (4) is fixedly connected radially inside the ring cavity rubber ring (1), a lubricating oil packet (5) is arranged inside the ring cavity rubber ring (1), an inner ring oil outlet hole (6) is penetrated and opened at one end of the inner ring gasket (3), an outer ring oil outlet hole (7) is penetrated and opened on the outside of the ring cavity rubber ring (1), an upper edge-receiving ring gasket (8) is fixedly connected to the top surface of the ring cavity rubber ring (1), and a lower edge-receiving ring gasket (9) is fixedly connected to the bottom surface of the ring cavity rubber ring (1).

2. The self-lubricating rubber sealing ring according to claim 1, wherein, The ring cavity rubber ring (1) is made of rubber and has a hollow annular structure with an open inner side, and the upper and lower ring edges at the open inner side of the ring cavity rubber ring (1) are both fixedly connected with curled edge ring (2) structures, and the ends of the two curled edge ring (2) structures are both curled inwards.

3. The self-lubricating rubber sealing ring according to claim 1, characterized in that, The inner opening of the ring cavity rubber ring (1) is fixedly connected through the inner ring gasket (3) to form a sealed annular cavity structure inside.

4. A self-lubricating rubber sealing ring according to claim 1, characterized in that, A number of evenly distributed partition gasket (4) structures are fixedly connected radially between the ring cavity rubber ring (1) and the inner ring gasket (3), and the number of groups of the partition gaskets (4) divides the inside of the ring cavity rubber ring (1) into a number of independent segmented cavities.

5. A self-lubricating rubber sealing ring according to claim 1, characterized in that, Lubricating oil packet (5) structures are arranged inside the segmented cavities separated by the number of groups of the partition gaskets (4) inside the ring cavity rubber ring (1), and the lubricating oil packet (5) is composed of lubricating oil and a plastic capsule for wrapping the lubricating oil.

6. A self-lubricating rubber sealing ring according to claim 1, characterized in that, The number of the inner ring oil outlet holes (6) and the outer ring oil outlet holes (7) are both set to a number of groups, and they are arranged oppositely radially along the ring cavity rubber ring (1).

7. A self-lubricating rubber sealing ring according to claim 1, characterized in that, Both the upper edge-receiving ring gasket (8) and the lower edge-receiving ring gasket (9) are set to be annular rubber gasket structures with edges curled inwards, and they are symmetrically arranged on the top surface and the bottom surface of the ring cavity rubber ring (1) respectively.

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