Bearing with good sealing effect

Abstract

The utility model relates to the field of bearings, and discloses a bearing with a good sealing effect, which comprises a bearing outer ring and a bearing inner ring arranged on the inner wall of the bearing outer ring, a first sealing gasket is arranged between the bearing outer ring and the bearing inner ring, the inner wall of the bearing outer ring is fixedly connected with a third step, and a second step is arranged on the outer surface of the upper end of the third step. A first step is arranged on the outer surface of the upper end of the second step, and knurls are fixedly connected to the inner wall of the bearing outer ring. According to the bearing with the good sealing effect, the sealing effect of the bearing is further improved by arranging the step structure and designing the contact surface in the bearing, so that when the bearing bears external pressure, lubricating oil or gas can be more effectively prevented from leaking, the cleanness and stability of the internal environment of the bearing are ensured, and meanwhile, the sealing effect of the bearing is improved. Due to the design of an internal contact surface, heat transfer is reduced, the temperature rise of the bearing is reduced, and the service life of the bearing is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of bearings, and particularly to a bearing with good sealing effect. Background Technique

[0002] A bearing is a device used to support a rotating shaft and reduce the friction coefficient during its movement. It consists of two inner and outer rings, rolling elements, and a cage. Among them, the inner ring is closely fitted with the shaft and rotates with the shaft, while the outer ring is fixed in the bearing housing or mechanical components. The rolling elements are located between the inner and outer rings, reducing friction through rolling to ensure the smooth operation of the shaft. The cage is used to fix the rolling elements and ensure their movement in the correct track. Bearings are classified in various ways. For example, they can be divided into radial bearings and thrust bearings according to the load-bearing direction, and ball bearings and roller bearings according to the type of rolling elements.

[0003] In the field of mechanical transmission, as a key component, the sealing performance of bearings directly affects the stability and service life of mechanical equipment. However, traditional bearings have obvious deficiencies in terms of sealing effect. Due to limitations in the design structure, traditional bearings are prone to liquid or gas leakage during operation. This not only causes pollution of the internal environment of the bearings but may also damage other components of the mechanical equipment. In addition, the leakage problem may also lead to the loss of lubricating oil, thereby affecting the lubrication effect and friction performance of the bearings. Therefore, developing a bearing with good sealing effect is of great significance for improving the overall performance and stability of mechanical equipment. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a bearing with good sealing effect, which has the advantages of good practicability and sealing performance to solve the above problems.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: A bearing with good sealing effect includes an outer bearing ring, and an inner bearing ring arranged on the inner wall of the outer bearing ring. A first sealing gasket is arranged between the outer bearing ring and the inner bearing ring. A third step is fixedly connected to the inner wall of the outer bearing ring. A second step is arranged on the upper outer surface of the third step, and a first step is arranged on the upper outer surface of the second step. Knurling is fixedly connected to the inner wall of the outer bearing ring.

[0008] Preferably, the first sealing gasket can also be replaced by a third sealing gasket or a second sealing gasket, and an annular groove is provided on the inner wall of the inner bearing ring.

[0009] Preferably, balls and a retaining frame are arranged between the opposite surfaces of the bearing inner ring and the bearing outer ring. The balls are arranged on the retaining frame, and the retaining frame is located on the outer surface of the lower end of the first sealing gasket.

[0010] Preferably, the inner wall of the outer ring of the bearing is provided with a first rolling groove matched with the ball, and the outer ring of the bearing is movably connected with the ball through the first rolling groove.

[0011] Preferably, the outer wall of the inner ring of the bearing is provided with a second rolling groove adapted to the ball, and the inner ring of the bearing is movably connected to the ball via the second rolling groove.

[0012] Preferably, the third sealing gasket comprises a metal sheet, and an annular sealing ring is fixedly connected to the outer surface of the lower end of the metal sheet.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a bearing with good sealing effect, which has the following

[0015] Beneficial effects:

[0016] The bearing with good sealing effect is designed to design the contact surface inside the bearing by setting a step structure, thereby further improving the sealing effect of the bearing. This design enables the bearing to more effectively prevent leakage of lubricating oil or gas when it is subjected to external pressure, thereby ensuring the cleanliness and stability of the internal environment of the bearing. At the same time, the design of the internal contact surface also reduces the heat transfer, reduces the temperature rise of the bearing, and extends the service life of the bearing. The bearing can select different sealing rings according to the rotation speed. This design greatly enhances the adaptability of the bearing. When running at high speed, a highly wear-resistant and high-temperature resistant sealing ring is selected to ensure that the bearing can still maintain excellent sealing performance under high-speed conditions. When running at low speed, a more economical sealing ring can be selected to achieve effective cost control. This function meets the requirements for bearing sealing performance under different rotation speed conditions. By setting knurling on the bearing, the bearing is effectively prevented from falling off and following rotation during operation. The knurling design increases the friction between the bearing and the mounting component, so that it can be stably fixed in the installation position, avoiding safety hazards caused by falling off or following rotation, and ensuring the stable operation of mechanical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a bearing with good sealing effect according to the utility model;

[0018] Figure 2 This is a structural schematic diagram of a sealing ring in a bearing with good sealing effect according to the utility model;

[0019] Figure 3 The utility model is a structural schematic diagram of the outer ring of a bearing with good sealing effect.

[0020] In the figure: 1. Outer ring of the bearing; 2. First gasket; 3. Annular groove; 4. Inner ring of the bearing; 5. Second gasket; 6. Third gasket; 7. Second step; 8. Knurling; 9. First step; 10. Third step. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-3 , a bearing with good sealing effect, including an outer ring 1 of the bearing and an inner ring 4 of the bearing arranged on the inner wall of the outer ring 1 of the bearing. A first gasket 2 is arranged between the outer ring 1 of the bearing and the inner ring 4 of the bearing. A third step 10 is fixedly connected to the inner wall of the outer ring 1 of the bearing. A second step 7 is arranged on the upper outer surface of the third step 10. A first step 9 is arranged on the upper outer surface of the second step 7. Knurling 8 is fixedly connected to the inner wall of the outer ring 1 of the bearing. The first gasket 2 can also be replaced by a third gasket 6 or a second gasket 5. An annular groove 3 is opened on the inner wall of the inner ring 4 of the bearing;

[0023] This bearing is mainly composed of an outer ring 1 of the bearing and an inner ring 4 of the bearing. An excellent sealing effect is achieved between them through a carefully designed sealing structure. Between the outer ring 1 of the bearing and the inner ring 4 of the bearing, a first gasket 2 is arranged. This gasket can effectively isolate external impurities and ensure the cleanliness inside the bearing. To further enhance the sealing effect, a multi-step structure is designed on the inner wall of the outer ring 1 of the bearing, including a third step 10, a second step 7, and a first step 9. These step structures not only increase the contact area between the inner and outer rings of the bearing, improve the reliability of the seal, but also make the contact surface located inside the bearing through their special design, thereby reducing heat transfer and lowering the temperature rise of the bearing. In addition, to meet the sealing requirements under different working conditions, the first gasket 2 can also be replaced by a third gasket 6 or a second gasket 5 according to actual needs. This design enables the bearing to select a suitable sealing ring according to working speed, temperature and other conditions, thus ensuring the sealing performance of the bearing under various working conditions. During the operation of the bearing, the design of the knurling 8 plays a key role. The knurling increases the friction between the inner and outer rings of the bearing, effectively preventing the bearing from falling off and following rotation, and ensuring the stable operation of the bearing.

[0024] Between the opposite surfaces of the inner bearing ring 4 and the outer bearing ring 1, there are also provided ball bearings and a cage. The ball bearings are arranged on the cage, and the cage is located on the lower outer surface of the first gasket 2. The inner wall of the outer bearing ring 1 is provided with a first raceway adapted to the ball bearings. The outer bearing ring 1 is movably connected to the ball bearings through the first raceway. The outer wall of the inner bearing ring 4 is provided with a second raceway adapted to the ball bearings. The inner bearing ring 4 is movably connected to the ball bearings through the second raceway. The third gasket 6 includes a metal sheet, and an annular sealing ring is fixedly connected to the lower outer surface of the metal sheet;

[0025] The design of this bearing fully considers the balance between sealing performance and smooth rotation. Between the opposite surfaces of the inner bearing ring 4 and the outer bearing ring 1, ball bearings and a cage are provided. The ball bearings are ingeniously arranged on the cage, and the cage is located on the lower outer surface of the first gasket 2. This layout ensures that the bearing can achieve smooth rotation while maintaining sealing performance. On the inner wall of the outer bearing ring 1, a first raceway adapted to the ball bearings is designed. This raceway can accurately guide the movement of the ball bearings, enabling them to roll smoothly on the outer ring track. Similarly, the outer wall of the inner bearing ring 4 is also provided with a second raceway adapted to the ball bearings. The ball bearings are movably connected to the inner and outer rings through these raceways, greatly reducing the frictional resistance during the rotation of the bearing and increasing the service life of the bearing. In addition, to meet the sealing requirements in different working environments, this bearing also designs replaceable gaskets. The third gasket 6 is one of them, which is composed of a metal sheet and an annular sealing ring. The metal sheet provides a stable support structure, while the annular sealing ring ensures the isolation of the inner and outer environments of the bearing, effectively preventing the leakage of liquid or gas.

[0026] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing with good sealing effect, comprising a bearing outer ring (1), and a bearing inner ring (4) arranged on the inner wall of the bearing outer ring (1), characterized in that: A first sealing gasket (2) is arranged between the bearing outer ring (1) and the bearing inner ring (4); a third step (10) is fixedly connected to the inner wall of the bearing outer ring (1); a second step (7) is arranged on the upper outer surface of the third step (10); a first step (9) is arranged on the upper outer surface of the second step (7); and a knurl (8) is fixedly connected to the inner wall of the bearing outer ring (1).

2. A bearing with good sealing effect according to claim 1, characterized in that: The first sealing gasket (2) may also be replaced by a third sealing gasket (6) or a second sealing gasket (5), and an annular groove (3) is provided on the inner wall of the bearing inner ring (4).

3. A bearing with good sealing effect according to claim 1, characterized in that: Balls and a retaining frame are also provided between the opposing surfaces of the bearing inner ring (4) and the bearing outer ring (1), the balls being arranged on the retaining frame, and the retaining frame being located on the outer surface of the lower end of the first sealing gasket (2).

4. A bearing with good sealing effect according to claim 2, characterized in that: The inner wall of the bearing outer ring (1) is provided with a first rolling groove adapted to the ball, and the bearing outer ring (1) is movably connected to the ball via the first rolling groove.

5. A bearing with good sealing effect according to claim 2, characterized in that: The outer wall of the bearing inner ring (4) is provided with a second rolling groove adapted to the ball, and the bearing inner ring (4) is movably connected to the ball via the second rolling groove.

6. A bearing with good sealing effect according to claim 2, characterized in that: The third sealing gasket (6) comprises a metal sheet, and an annular sealing ring is fixedly connected to the outer surface of the lower end of the metal sheet.

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