A leak-proof end cap

Abstract

This utility model relates to the field of end caps, and more particularly to a leak-proof sealing end cap. This utility model provides a leak-proof sealing end cap comprising a support plate, a fixing plate, first screws, and an end cap plate. The fixing plate is mounted on the front side of the support plate via multiple first screws. The end cap plate is fixedly connected to the front side of the fixing plate, and the rear side of the end cap plate contacts the front side of the support plate. The end cap plate has an internal cavity and includes a first sealing ring, a rubber gasket, a fixing ring, a second sealing ring, and second screws. The first sealing ring is disposed inside the cavity. The rubber gasket is disposed on the rear side of the fixing plate, and the rubber gasket is in close contact with the support plate. The fixing ring is mounted on the front side of the end cap plate via multiple second screws, and the second sealing ring is embedded in the fixing ring. The first and second sealing rings work together to form a double seal, ensuring effective prevention of liquid or gas leakage even under high-speed rotation and high-pressure conditions, thus ensuring the stability and safety of the rolling process.

Description

Technical Field

[0001] This utility model relates to the field of end caps, and in particular to a sealing and leak-proof end cap. Background Technology

[0002] High-nickel-chromium rolls require high-speed rotation during operation and are subjected to enormous rolling forces, high temperatures, and the impact of cooling media, making their support and sealing systems crucial. As one of the key components of the roll, the end caps (also known as "bearing seats" or "shaft heads") at both ends play a vital role in the rolling process.

[0003] End caps serve as the connection interface between the rolls and the rolling mill, primarily responsible for installing and precisely positioning the rolls on the mill stand, providing necessary support. Furthermore, end caps also play a crucial role in protecting internal bearings, preventing leaks, and isolating external impurities. However, existing end cap structures generally employ a single rubber ring seal design, which is prone to seal failure under high-speed rotation conditions due to vibration, rotational stress, or the intrusion of environmental impurities, leading to frequent material leakage problems.

[0004] Therefore, a leak-proof end cap is needed. Utility Model Content

[0005] To overcome the shortcomings of existing end caps, which typically employ a single rubber ring seal design and are prone to seal failure under high-speed rotation conditions due to vibration, rotational stress, or the intrusion of environmental impurities, resulting in frequent material leakage problems, this utility model provides a leak-proof sealing end cap.

[0006] Technical solution: A leak-proof sealing end cap includes a support plate, a fixing plate, first screws, and an end cap plate. The fixing plate is installed on the front side of the support plate by multiple first screws. The end cap plate is fixedly connected to the front side of the fixing plate. The rear side of the end cap plate contacts the front side of the support plate. The end cap plate has a cavity inside. It also includes a first sealing ring, a rubber gasket, a fixing ring, a second sealing ring, and second screws. The first sealing ring is disposed inside the cavity. The rubber gasket is disposed on the rear side of the fixing plate and is in close contact with the support plate. The fixing ring is installed on the front side of the end cap plate by multiple second screws. The second sealing ring is embedded in the fixing ring. The first sealing ring and the second sealing ring are in close contact with the high-nickel-chromium rolling mill roll.

[0007] In one embodiment, the system further includes a stabilizing plate, a third sealing ring, and a third screw. The stabilizing plate is installed inside the support plate by multiple third screws. A third sealing ring is provided on the front side of the stabilizing plate and is in close contact with the high-nickel-chromium roll.

[0008] In one embodiment, the device further includes a feed pipe, a sealing cap, and a knob. The top of the end cap is connected to and communicates with the feed pipe, the top of the feed pipe is covered with a sealing cap, and the top of the sealing cap is fixedly connected to a knob.

[0009] In one embodiment, an anti-loss rope is also included, with the sealing cap having the anti-loss rope attached to the sealing cap and the other end of the anti-loss rope connected to the feed pipe.

[0010] In one embodiment, a pressure balancing valve is installed inside the end cap.

[0011] In one embodiment, the surfaces of the first sealing ring, the second sealing ring, and the third sealing ring are all coated with a polytetrafluoroethylene wear-resistant layer.

[0012] Compared with the prior art, the present invention provides a sealed and leak-proof end cap with the following advantages: 1. By using the first sealing ring and the second sealing ring together, a double seal is formed, which ensures that liquid or gas leakage can still be effectively prevented under high-speed rotation and high-pressure conditions, thus ensuring the stability and safety of the rolling process.

[0013] 2. By holding the knob and rotating it, the sealing cover is opened, and lubricating or cooling media is injected through the feed pipe to reduce friction and temperature and extend service life. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a partial sectional view of the support plate, fixing ring, and second sealing ring of this utility model.

[0016] Figure 3 This is a partial sectional view of the end cover plate, the first sealing ring, and the rubber gasket components of this utility model.

[0017] Figure 4 This is a partial cross-sectional view of the stabilizing plate, the third sealing ring, and the third screw of this utility model.

[0018] Figure 5 This is a partial sectional view of the feed pipe, sealing cap, and knob of this utility model.

[0019] In the attached diagram, the following are the reference numerals: 1. Support plate, 2. Fixing plate, 3. First screw, 4. End cover plate, 5. Cavity, 6. First sealing ring, 7. Rubber pad, 8. Fixing ring, 9. Second sealing ring, 10. Second screw, 11. Stabilizing plate, 12. Third sealing ring, 13. Third screw, 14. Feed pipe, 15. Sealing cover, 16. Knob, 17. Anti-loss rope. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0021] Example 1: A leak-proof sealing end cap, please refer to... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The device includes a support plate 1, a fixing plate 2, first screws 3, and an end cap 4. The fixing plate 2 is mounted on the front side of the support plate 1 by several first screws 3. The end cap 4 is fixedly connected to the front side of the fixing plate 2. The rear side of the end cap 4 contacts the front side of the support plate 1. The end cap 4 has a cavity 5 inside. It also includes a first sealing ring 6, a rubber gasket 7, a fixing ring 8, a second sealing ring 9, and second screws 10. The first sealing ring 6 is disposed inside the cavity 5. The rubber gasket 7 is disposed on the rear side of the fixing plate 2 and is in close contact with the support plate 1. The fixing ring 8 is mounted on the front side of the end cap 4 by four second screws 10. The second sealing ring 9 is embedded in the fixing ring 8. The sealing ring 9, the first sealing ring 6, and the second sealing ring 9 are in close contact with the high nickel-chromium roll. It also includes a stabilizing plate 11, a third sealing ring 12, and a third screw 13. The stabilizing plate 11 is installed inside the support plate 1 by four third screws 13. The third sealing ring 12 is provided on the front side of the stabilizing plate 11. The third sealing ring 12 is in close contact with the high nickel-chromium roll. A pressure balancing valve is installed inside the end cover plate 4 to regulate the air pressure inside the cavity 5 and prevent sealing failure due to excessive or insufficient pressure. The surfaces of the first sealing ring 6, the second sealing ring 9, and the third sealing ring 12 are all coated with a polytetrafluoroethylene wear-resistant layer to extend the service life of the sealing rings.

[0022] The sealing and leak-proof end cap uses a support plate 1 as the basic installation structure. A fixing plate 2 is firmly connected to the support plate 1 by multiple first screws 3. The end cap 4 is pre-fixed to the front side of the fixing plate 2, thus forming a complete cap structure together with the support plate 1. When the fixing plate 2 is tightened to the support plate 1 by the first screws 3, the rubber pad 7 is compressed and comes into close contact with the support plate 1, with a contact pressure ≥0.5MPa. The rubber pad 7 mainly serves as a buffer and seals the connection area between the fixing plate 2 and the support plate 1, preventing external impurities and contaminants from entering the end cap. The end cap 4 has a cavity 5 inside, and a first sealing ring 6 is installed in the cavity 5. The first sealing ring 6 mainly acts on the end cap 4 itself. The internal structure provides additional sealing protection. On the front side of the end cover plate 4, a retaining ring 8 is installed by multiple second screws 10. A second sealing ring 9 is embedded in the retaining ring 8. The inner edge of the second sealing ring 9 is in close contact with the surface of the high nickel-chromium roll, forming the first main rotary seal. At the same time, the stabilizing plate 11 is installed inside the support plate 1 by a third screw 13. A second sealing ring 9 is provided on the front side of the stabilizing plate 11. The second sealing ring 9 is also in close contact with the surface of the high nickel-chromium roll, forming the second rotary seal. The first sealing ring 6 and the second sealing ring 9 work together to form a double seal, ensuring that liquid or gas leakage can be effectively prevented under high speed rotation and high pressure conditions, ensuring the stability and safety of the rolling process.

[0023] Example 2: Based on Example 1, please refer to... Figure 1 and Figure 5 It also includes a feed pipe 14, a sealing cap 15, and a knob 16. The top of the end cover plate 4 is connected to and communicates with the feed pipe 14. The top of the feed pipe 14 is covered with the sealing cap 15. The top of the sealing cap 15 is fixedly connected to the knob 16. An anti-loss rope 17 is connected to the sealing cap 15, and the other end of the anti-loss rope 17 is connected to the feed pipe 14 to prevent the sealing cap 15 from being lost.

[0024] When it is necessary to add lubricating oil or coolant to the end cap, hold the knob 16 and rotate it to open the sealing cover 15. Inject the lubricating or cooling medium through the feed pipe 14 to reduce friction and temperature and extend service life. After injection, immediately tighten the sealing cover 15 to ensure sealing and effectively prevent external dust, moisture and other contaminants from entering the end cap and keep the lubrication system clean.

[0025] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. A sealed leakproof end cover, comprising a support plate (1), a fixed plate (2), a first screw (3) and an end cover plate (4), the front side of the support plate (1) is provided with the fixed plate (2) through a plurality of first screws (3), the front side of the fixed plate (2) is fixedly connected with the end cover plate (4), the rear side of the end cover plate (4) is in contact with the front side of the support plate (1), and a cavity (5) is arranged in the end cover plate (4), characterized in that, It also includes a first sealing ring (6), a rubber pad (7), a fixing ring (8), a second sealing ring (9), and a second screw (10). The first sealing ring (6) is provided inside the cavity (5). The rubber pad (7) is provided on the rear side of the fixing plate (2). The rubber pad (7) is in close contact with the support plate (1). The fixing ring (8) is installed on the front side of the end cover plate (4) by multiple second screws (10). The second sealing ring (9) is embedded in the fixing ring (8). The first sealing ring (6) and the second sealing ring (9) are in close contact with the high nickel-chromium roll.

2. A leakproof end closure as defined in claim 1, wherein It also includes a stabilizing plate (11), a third sealing ring (12) and a third screw (13). The stabilizing plate (11) is installed inside the support plate (1) by multiple third screws (13). The third sealing ring (12) is provided on the front side of the stabilizing plate (11) and is in close contact with the high nickel-chromium roll.

3. A sealed end cap as defined in claim 2, wherein, It also includes a feed pipe (14), a sealing cap (15) and a knob (16). The top of the end cover plate (4) is connected to and communicates with the feed pipe (14). The top of the feed pipe (14) is covered with a sealing cap (15), and the top of the sealing cap (15) is fixedly connected with a knob (16).

4. A sealed end cap as defined in claim 3, wherein, It also includes an anti-loss rope (17), which is connected to the sealing cap (15), and the other end of the anti-loss rope (17) is connected to the feed pipe (14).

5. A sealed end cap as defined in claim 4, wherein, A pressure balancing valve is installed inside the end cover plate (4).

6. A sealed end cap as defined in claim 5, wherein, The surfaces of the first sealing ring (6), the second sealing ring (9), and the third sealing ring (12) are all coated with a polytetrafluoroethylene wear-resistant layer.

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