Self-lubricating rotary shaft lip seal assembly

Abstract

The utility model relates to self -lubricating rotary axle lip seal technical field discloses a kind of self -lubricating rotary axle lip seal assembly, including sealing lip block, the top of sealing lip block is provided with inner lip and outer lip, and the top of sealing lip block is provided with recess, the side of recess is sleeved with clamping ring, by setting the composite heat transfer structure of heat conduction ring, connecting column and reinforcing rib block in sealing lip block, so that the heat generated in the inner wall of sealing lip block can be efficiently transferred to the silicon oil in cooling groove, to realize rapid heat dissipation, significantly improve the cooling efficiency of sealing structure, by filling graphite and PTFE micro powder in fluorine rubber matrix, not only enhance the self -lubricating property of material, also improve wear resistance and service life, at the same time, cooling groove is used in cooperation with threaded fixing pipe, can periodically supplement silicon oil, further guarantee the cooling effect and sealing property of sealing structure, to effectively improve the overall strength, heat resistance and long-term stability of device.

Description

Technical Field

[0001] This utility model relates to the field of self-lubricating rotary shaft lip seal technology, specifically a self-lubricating rotary shaft lip seal assembly. Background Technology

[0002] Rotary shaft lip seals are a common sealing element used in rotating machinery. They mainly consist of a skeleton and an elastic sealing lip, and are usually installed in bearing housings or machine body bores, mating with the surface of the rotating shaft.

[0003] During long-term operation, existing rotary shaft lip seal structures generate continuous friction between the lip and the shaft. This friction not only causes the temperature of the sealing area to rise rapidly, but also causes the sealing material to gradually age, harden, or even crack due to the combined effects of heat and friction, thus significantly reducing the sealing effect and overall service life.

[0004] Therefore, it is necessary to design a self-lubricating rotating shaft lip seal assembly to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a self-lubricating rotating shaft lip sealing assembly to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-lubricating rotary shaft lip sealing assembly, comprising a sealing lip block, wherein the top of the sealing lip block is provided with an inner lip and an outer lip, and a groove is formed on the top of the sealing lip block, a clamping ring is sleeved on one side of the groove, a second heat-conducting ring is fixedly connected inside the sealing lip block, a plurality of connecting posts are fixedly connected to the outer surface of the second heat-conducting ring, and a reinforcing rib is fixedly connected to one end of the plurality of connecting posts, a connecting ring is fixedly connected to the top of the reinforcing rib, a first heat-conducting ring is fixedly connected to the top of the connecting ring, a cooling groove is formed inside the sealing lip block, an oil inlet hole is formed on the outer surface of the sealing lip block, the oil inlet hole communicates with the interior of the cooling groove, a threaded fixing pipe is fixedly connected inside the oil inlet hole, and a threaded connecting bolt is threadedly connected to one end of the threaded fixing pipe, and the interior of the cooling groove is filled with silicone oil.

[0007] Preferably, the sealing lip is made of fluororubber, and the interior of the sealing lip is filled with graphite and PTFE micro powder.

[0008] Preferably, the connecting ring is fixed between the first heat-conducting ring and the connecting post, and the thickness of the connecting ring is less than the thickness of the first heat-conducting ring and the connecting post.

[0009] Preferably, the reinforcing rib is made of copper and has an L-shaped cross-section, and is fixedly attached to the bottom of the groove.

[0010] Preferably, the second heat-conducting ring is annular in shape, and the plurality of connecting posts and the second heat-conducting ring are both made of copper, and the second heat-conducting ring is fixed inside the sealing lip block and located on one side of the inner wall of the sealing lip block.

[0011] Preferably, the first heat-conducting ring is annular in shape, and the bottom of the first heat-conducting ring is in contact with the bottom of the cooling groove, and both sides of the first heat-conducting ring are in contact with both sides of the cooling groove, and the top of the inner lip protrudes from the inner wall of the sealing lip block.

[0012] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0013] This invention utilizes a composite heat transfer structure consisting of a heat-conducting ring, connecting column, and reinforcing ribs inside the sealing lip block. This allows heat generated on the inner wall of the sealing lip block to be efficiently transferred to the silicone oil in the cooling tank, achieving rapid heat dissipation and significantly improving the cooling efficiency of the sealing structure. By filling the fluororubber matrix with graphite and PTFE micropowder, not only is the self-lubricating property of the material enhanced, but also the wear resistance and service life are improved. Furthermore, the cooling tank, used in conjunction with the threaded fixing pipe, allows for periodic replenishment of silicone oil, further ensuring the cooling effect and sealing performance of the sealing structure. This effectively enhances the overall strength, heat resistance, and long-term stability of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an exploded view of the sealing lip block structure of this utility model;

[0016] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0017] In the diagram: 1. Sealing lip block; 2. Inner lip; 3. Outer lip; 4. Threaded fixing pipe; 5. Threaded connecting bolt; 6. Cooling groove; 7. First heat-conducting ring; 8. Connecting ring; 9. Reinforcing rib block; 10. Connecting column; 11. Second heat-conducting ring; 12. Clamping ring; 13. Oil inlet hole. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Obviously, many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Please see Figure 1-3 This utility model provides a self-lubricating rotating shaft lip seal assembly, including a sealing lip block 1. The top of the sealing lip block 1 is provided with an inner lip 2 and an outer lip 3, and a groove is formed on the top of the sealing lip block 1. A clamping ring 12 is sleeved on one side of the groove. A second heat-conducting ring 11 is fixedly connected inside the sealing lip block 1. Multiple connecting posts 10 are fixedly connected to the outer surface of the second heat-conducting ring 11, and a reinforcing rib block 9 is fixedly connected to one end of the multiple connecting posts 10. A connecting ring 8 is fixedly connected to the top of the reinforcing rib block 9, and a first heat-conducting ring 7 is fixedly connected to the top of the connecting ring 8. A cooling groove 6 is formed inside the sealing lip block 1, and an oil inlet hole 13 is formed on the outer surface of the sealing lip block 1. The oil inlet hole 13 communicates with the interior of the cooling groove 6, and a threaded fixing tube 4 is fixedly connected inside the oil inlet hole 13. One end of the pipe 4 is threadedly connected to a threaded bolt 5. The interior of the cooling tank 6 is filled with silicone oil. After the device is connected to the rotating shaft, the inner wall of the sealing lip block 1 will generate high heat during long-term operation. The heat can be conducted through multiple reinforcing ribs 9 via the second heat-conducting ring 11 located near the inner wall of the sealing lip block 1, and finally transferred to the interior of the cooling tank 6 via the first heat-conducting ring 7. The interior of the cooling tank 6 is filled with silicone oil, which is used for heat transfer and cooling. The threaded connection between the threaded bolt 5 and the threaded fixing pipe 4 can improve the sealing performance of the threaded fixing pipe 4. Silicone oil can be periodically filled into the interior of the cooling tank 6 through the threaded fixing pipe 4 and the oil inlet 13, thereby ensuring the cooling efficiency of the sealing lip block 1 and improving the overall service life and strength of the device.

[0021] To improve the self-lubricating properties of the device, the sealing lip 1 is made of fluororubber, and the interior of the sealing lip 1 is filled with graphite and PTFE micro powder.

[0022] To facilitate heat transfer and improve the sealing of the cooling tank 6, the connecting ring 8 is fixed between the first heat-conducting ring 7 and the connecting post 10, and the thickness of the connecting ring 8 is less than the thickness of the first heat-conducting ring 7 and the connecting post 10.

[0023] Furthermore, in order to improve the strength of the device and increase heat transfer, the reinforcing rib 9 is made of copper and has an L-shaped cross-section. The reinforcing rib 9 is fixed to the bottom of the groove.

[0024] Furthermore, in order to utilize the second heat-conducting ring 11 for heat transfer while improving the installation strength of the second heat-conducting ring 11 through multiple connecting posts 10, the second heat-conducting ring 11 is annular in shape, and both the multiple connecting posts 10 and the second heat-conducting ring 11 are made of copper, and the second heat-conducting ring 11 is fixed inside the sealing lip block 1 and located on one side of the inner wall of the sealing lip block 1.

[0025] The interior of the cooling tank 6 needs to be filled with silicone oil regularly. In order to further improve the sealing performance of the interior of the cooling tank 6, the first heat-conducting ring 7 is annular in shape, and the bottom of the first heat-conducting ring 7 is in contact with the bottom of the cooling tank 6, and both sides of the first heat-conducting ring 7 are in contact with both sides of the cooling tank 6, and the top of the inner lip 2 protrudes from the inner wall of the sealing lip block 1.

[0026] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0027] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0028] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A self-lubricating rotary shaft lip seal assembly, comprising a sealing lip block (1), characterized in that: The sealing lip block (1) has an inner lip (2) and an outer lip (3) at its top, and a groove is provided at the top of the sealing lip block (1). A clamping ring (12) is fitted onto one side of the groove. A second heat-conducting ring (11) is fixedly connected inside the sealing lip block (1). Multiple connecting posts (10) are fixedly connected to the outer surface of the second heat-conducting ring (11), and a reinforcing rib block (9) is fixedly connected to one end of each of the multiple connecting posts (10). A connecting ring is fixedly connected to the top of the reinforcing rib block (9). (8) A first heat-conducting ring (7) is fixedly connected to the top of the connecting ring (8), and a cooling groove (6) is opened inside the sealing lip block (1). An oil inlet hole (13) is opened on the outer surface of the sealing lip block (1). The oil inlet hole (13) is connected to the inside of the cooling groove (6), and a threaded fixing pipe (4) is fixedly connected inside the oil inlet hole (13). A threaded connecting bolt (5) is threaded to one end of the threaded fixing pipe (4). The inside of the cooling groove (6) is filled with silicone oil.

2. The self-lubricating rotary shaft lip seal assembly according to claim 1, characterized in that: The sealing lip (1) is made of fluororubber, and the interior of the sealing lip (1) is filled with graphite and PTFE micro powder.

3. The self-lubricating rotary shaft lip seal assembly according to claim 1, characterized in that: The connecting ring (8) is fixed between the first heat-conducting ring (7) and the connecting post (10), and the thickness of the connecting ring (8) is less than the thickness of the first heat-conducting ring (7) and the connecting post (10).

4. The self-lubricating rotary shaft lip seal assembly according to claim 1, characterized in that: The reinforcing rib (9) is made of copper and has an L-shaped cross-section. The reinforcing rib (9) is fixed to the bottom of the groove.

5. A self-lubricating rotary shaft lip seal assembly according to claim 1, characterized in that: The second heat-conducting ring (11) is annular in shape, and the materials of the plurality of connecting posts (10) and the second heat-conducting ring (11) are both copper, and the second heat-conducting ring (11) is fixed inside the sealing lip block (1) and located on one side of the inner wall of the sealing lip block (1).

6. The self-lubricating rotary shaft lip seal assembly according to claim 1, characterized in that: The first heat-conducting ring (7) is annular in shape, and the bottom of the first heat-conducting ring (7) is in contact with the bottom of the cooling groove (6), and both sides of the first heat-conducting ring (7) are in contact with both sides of the cooling groove (6), and the top of the inner lip (2) protrudes from the inner wall of the sealing lip block (1).

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