Dual oil seal bearing end cap

Abstract

The application discloses a double-oil-seal bearing end cover, which comprises an end cover body, a double-oil-seal mounting groove is arranged at the inner side wall of the end cover body, an oil return groove is arranged between the double-oil-seal mounting grooves, an oil seal sealing ring is arranged in the oil seal mounting groove, a plurality of oil return holes are formed in the side wall of the oil return groove, and the end cover body is connected with a bearing box through fixing bolts. In actual use, when the first oil seal sealing ring on the side of the end cover body close to the bearing box is aged and leaks oil due to long-time operation, under the plugging effect of the second oil seal sealing ring on the other side of the end cover body, the lubricating oil in the oil return groove can flow back to the lubricating cavity in the bearing box through the oil return holes. The double-oil-seal bearing end cover has good sealing effect, can effectively solve the equipment oil leakage problem under high-frequency vibration working conditions, and effectively prolongs the service life cycle of the bearing.

Description

Technical Field

[0001] This utility model relates to the field of bearing application technology for screening machines, and in particular to a double oil seal bearing end cover. Background Technology

[0002] Screening machines are core equipment in aggregate production lines. The screening machine used in the mining aggregate production line is the Sandvik SC3072 model, whose bearings are lubricated with thin oil. Due to the long-term high-frequency vibration of the screening machine, the sealing effect of the oil seal inside the bearing end cover weakens, leading to oil leakage and ultimately bearing damage. Because the bearings used in the screening machine are expensive, and disassembly and replacement after bearing damage is difficult and time-consuming, it is urgent to solve the problem of how to avoid equipment failure caused by bearing damage and reduce the impact of equipment failure on output and efficiency. Since the lubrication method used in the screening machine cannot be changed, the fundamental solution to the oil leakage problem must start with the thin oil sealing method, the causes of oil leakage, and how to improve the sealing method. Because the outer side of the bearing sealing end cover houses the vibration counterweight and belt drive pulley, and the installation position cannot be changed, how to improve the sealing effect without changing the size of the sealing end cover has become a technical challenge in solving the oil leakage problem. Utility Model Content

[0003] The purpose of this application is to provide a double oil seal bearing end cover to solve the problem of bearing oil leakage, which in turn affects the service life of the screening machine.

[0004] To solve the above-mentioned technical problems, this application provides a double oil seal bearing end cap, comprising:

[0005] The end cap body has a double oil seal mounting groove on its inner side wall, an oil return groove between the double oil seal mounting grooves, an oil seal sealing ring in the oil seal mounting groove, and multiple oil return holes on the side wall of the oil return groove. The end cap body is connected to the bearing housing by fixing bolts.

[0006] As a preferred embodiment, a double oil seal bearing end cover is provided, wherein the end cover body is provided with an O-ring sealing strip mounting groove on the side near the bearing housing.

[0007] The solution requires detailed explanation of a double oil seal bearing end cap, wherein the end cap body is provided with two sealing grooves on the side away from the bearing housing.

[0008] Compared with existing technologies, the present invention provides a double-oil-seal bearing end cover, comprising an end cover body, a double-oil-seal mounting groove on the inner wall of the end cover body, an oil return groove between the double-oil-seal mounting grooves, an oil seal ring within the oil seal mounting groove, and multiple oil return holes on the side wall of the oil return groove. The end cover body is connected to the bearing housing by fixing bolts. In actual use, when the first oil seal ring on the side of the end cover body closest to the bearing housing ages and leaks oil due to prolonged operation, the lubricating oil entering the oil return groove can flow back to the lubrication cavity in the bearing housing through the oil return holes under the sealing effect of the second oil seal ring on the other side of the end cover body. The double-oil-seal bearing end cover has a good sealing effect, effectively solving the problem of oil leakage in equipment under high-frequency vibration conditions and effectively extending the service life of the bearing. Attached Figure Description

[0009] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0010] Figure 1 This is a schematic diagram of a planar structure of a double oil seal bearing end cap provided in an embodiment of this application;

[0011] Figure 2 This is a schematic diagram of another planar structure of a double oil seal bearing end cap provided in an embodiment of this application;

[0012] Figure 3 A cross-sectional view of a double oil seal bearing end cap BB provided in an embodiment of this application;

[0013] In the diagram: 1. First oil seal mounting groove; 2. First oil seal mounting groove; 3. Oil return groove; 4. Oil return hole; 5. Bolt hole; 6. O-ring sealing strip mounting groove; 7. End cap body; 8. Sealing groove; 9. Center hole. Detailed Implementation

[0014] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0015] The core of this application is to provide a double oil seal bearing end cover, which solves the problem of bearing oil leakage, thereby affecting the service life of the screening machine.

[0016] Figure 1 This is a schematic diagram of a planar structure of a double oil-sealed bearing end cap provided in an embodiment of this application. Figure 2 This is a schematic diagram of another planar structure of a double oil seal bearing end cap provided in an embodiment of this application. Figure 3 This is a cross-sectional view of a double oil-sealed bearing end cover provided in an embodiment of this application. Figure 1 The surface where the O-ring sealing strip mounting groove 6 is located. Figure 2 For the side opposite to the O-ring seal mounting groove 6, see [reference]. Figures 1 to 3 As shown.

[0017] A double oil seal bearing end cap includes an end cap body 7. The inner wall of the end cap body 7 has double oil seal mounting grooves, namely a first oil seal mounting groove 1 and a first oil seal mounting groove 2. An oil return groove 3 is provided between the first oil seal mounting groove 1 and the first oil seal mounting groove 2. Oil seal rings are provided in both the first oil seal mounting groove 1 and the first oil seal mounting groove 2. Multiple oil return holes 4 are opened on the side wall of the oil return groove 3 near the first oil seal mounting groove 1. After installation, one side of the end cap body 7 where the first oil seal mounting groove 1 is located is locked inside the bearing housing. Fixing bolts are installed in the bolt holes 5 of the end cap body 7, and the end cap body 7 is connected to the bearing housing via the fixing bolts. The fixing bolts and the bearing housing are not shown in the figure.

[0018] As a preferred embodiment, a double oil seal bearing end cover is provided, wherein the end cover body 7 is provided with an O-ring sealing strip mounting groove 6 on the side near the bearing housing, and an O-ring sealing strip is installed in the O-ring sealing strip mounting groove 6 to ensure the sealing performance between the end cover body 7 and the bearing housing.

[0019] As a preferred embodiment, a double oil seal bearing end cover is provided. On the side of the end cover body 7 away from the bearing housing, two sealing grooves 8 are also provided. In actual use, the shaft where the bearing is located extends through the center hole 9 of the end cover body 7 to the upper side of the end cover body 7. A shaft end cover is installed at the shaft end to prevent dust from entering. A sealing ring is provided in the sealing groove 8 to improve the sealing performance between the shaft end cover and the end cover body 7.

[0020] This utility model provides a double oil-sealed bearing end cover, comprising an end cover body 7. A double oil-sealed mounting groove is provided on the inner wall of the end cover body 7, and an oil return groove 3 is provided between the double oil-sealed mounting grooves. An oil seal ring is provided within the oil seal mounting groove, and multiple oil return holes 4 are provided on the side wall of the oil return groove 3. The end cover body 7 is connected to the bearing housing by fixing bolts. In actual use, when the first oil seal ring on the side of the end cover body 7 closest to the bearing housing ages and leaks oil due to prolonged operation, the lubricating oil entering the oil return groove 3 can flow back to the lubrication cavity inside the bearing housing through the oil return holes 4, thanks to the sealing effect of the second oil seal ring on the other side of the end cover body 7. The sealing effect of the double oil-sealed bearing end cover can effectively solve the problem of oil leakage in equipment under high-frequency vibration conditions and effectively extend the service life of the bearing.

[0021] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and incorporate common knowledge or customary techniques in the art disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0022] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A double oil-sealed bearing end cap, characterized in that, include: The end cap body (7) has a double oil seal mounting groove on its inner side wall, and an oil return groove (3) is provided between the double oil seal mounting grooves. An oil seal sealing ring is provided in the oil seal mounting groove. Multiple oil return holes (4) are provided on the side wall of the oil return groove (3). The end cap body (7) is connected to the bearing box by fixing bolts.

2. The double oil-sealed bearing end cap according to claim 1, characterized in that, The end cap body (7) is also provided with an O-ring sealing strip mounting groove (6) on the side near the bearing housing.

3. The double oil-sealed bearing end cap according to claim 1, characterized in that, Two sealing grooves (8) are also provided on the side of the end cap body (7) away from the bearing housing.

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