Bearing sealing assembly of high-speed motor train unit

Abstract

The utility model provides a high-speed motor train unit bearing sealing assembly which comprises a bearing body, an annular groove is formed in the side edge of a clamping groove, an outer ring of a dustproof cover is clamped into the annular groove, the outer diameter face of the dustproof cover is smaller than the inner diameter face of the annular groove, and the outer diameter face of the dustproof cover and the inner diameter face of the annular groove are matched and combined into a whole. According to the bearing sealing assembly for the high-speed motor train unit, external pollutant dust, particles and chemical substances are prevented from entering the bearing body through installation of the dustproof cover, due to the fact that the environment is complex and changeable in the running process of the high-speed motor train unit, the pollutants can be effectively blocked through the dustproof cover, and the interior of the bearing body is kept clean; in addition, the dustproof cover is installed outside the sealing ring, it is further guaranteed that the lubricating oil can be kept in the bearing body, loss of the lubricating oil is avoided, and therefore the lubricating effect of the bearing is guaranteed, the service life of the bearing is prolonged, and an additional barrier layer is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing seals, and particularly to a bearing seal assembly for a high-speed EMU. Background Technique

[0002] The bearings of high-speed EMUs are key components of the bogies of EMUs, and their performance such as speed, life and reliability directly affect the reliability and safety of vehicle operation. Bearing seals are an important part of bearings and are closely related to the high-speed, long-life and high-reliability performance of bearings.

[0003] When existing bearings are in use, external pollutants such as dust, particles and chemicals are likely to enter the inside of the bearings, resulting in the risk of bearing failure caused by contamination. At the same time, the lubricating oil is also likely to leak out, resulting in a deterioration of the lubrication state inside the bearings, causing corrosion and damage to the bearings, and affecting the life and reliability of the bearings. Content of the Utility Model

[0004] In view of the above defects or deficiencies in the prior art, the present application aims to provide a bearing seal assembly for a high-speed EMU, including a bearing body. A plurality of card slots are provided on the inner side surface of the bearing body, and annular grooves are provided on the sides of the card slots. A dust cover is provided on the side of the bearing body, and the outer ring of the dust cover is snapped into the annular groove. The outer diameter surface of the dust cover is smaller than the inner diameter surface of the annular groove, and the outer diameter surface of the dust cover and the inner diameter surface of the annular groove are combined and integrated. A plurality of clamping columns are provided inside the dust cover, and the positions of the clamping columns correspond to those of the card slots. The clamping columns are snapped into the annular groove through the dust cover and enter the card slots. A bearing inner ring is provided inside the bearing body, a sealing ring is provided above the bearing inner ring, a sealing shell is provided on the side of the sealing ring, the sealing shell is attached to the sealing ring, a fixing plate is provided on the side of the sealing shell, the fixing plate is attached to the sealing shell, and springs are assembled at the left and right ends of the side of the fixing plate.

[0005] Preferably, the dust cover is installed on one side of the bearing body, and the clamping columns are installed on the inner wall of one side surface of the dust cover.

[0006] Preferably, the bearing inner ring is located on the inner wall of the bearing body, and the sealing ring is located above the bearing inner ring.

[0007] Preferably, the sealing shell is installed on one side of the sealing ring, the fixing plate is installed on one side of the sealing shell, and the springs are symmetrically installed at the left and right ends of the side of the fixing plate. Advantageous Effects

[0008] 1. The bearing seal assembly of the high-speed EMU, through the dust cover provided, when installing the dust cover on the bearing body, by snapping the outer ring of the dust cover into the annular groove, when the dust cover is snapped into the annular groove, the clamping post enters the clamping groove through the snapping of the dust cover, so that through the snapping of the dust cover and the snapping of the clamping post and the clamping groove, the dust cover is installed on one side of the bearing body, and at the same time, the dust cover is installed at both left and right ends of the bearing body. Therefore, through the installation of the dust cover, external pollutants such as dust, particles and chemicals are prevented from entering the interior of the bearing body. Since the environment is complex and changeable during the operation of the high-speed EMU, the dust cover can effectively block these pollutants, keep the interior of the bearing body clean, reduce the risk of bearing failure caused by pollution, and by installing the dust cover outside the sealing ring, it further ensures that the lubricating oil can be kept inside the bearing body, avoiding the loss of lubricating oil, thus ensuring the lubrication effect of the bearing, prolonging the service life of the bearing, and providing an additional barrier layer.

[0009] 2. The bearing seal assembly of the high-speed EMU prevents the leakage of lubricating oil inside the bearing body through the sealing ring. Through the close fit of the sealing shell and the sealing ring, it is ensured that the sealing ring is tightly installed on the bearing body. Therefore, through the combined use of the sealing shell and the sealing ring, the sealing performance of the entire bearing assembly can be significantly enhanced, effectively preventing the leakage of lubricating oil. The fixing plate is installed on one side of the sealing ring and the sealing shell, and the fixing plate is in contact with the sealing shell. Furthermore, through the fixing plate, it is ensured that the sealing shell can be stably installed on the sealing ring, so that the sealing ring can be stably installed inside the bearing body. Therefore, the precision between the sealing ring and the sealing shell is strengthened through the fixing plate, and then through the spring, it is ensured that the fixing plate can be in close contact with the sealing shell under different working conditions, maintaining the sealing performance. Furthermore, through the elastic characteristics of the spring, it can dynamically adjust the position and tightness of the sealing components during the operation of the bearing to cope with the changes in sealing performance caused by factors such as vibration and temperature changes, so as to improve the sealing effect on the bearing body. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0011] Figure 1 Schematic three-dimensional structure diagram of the bearing seal assembly of the high-speed EMU of the present utility model;

[0012] Figure 2 Schematic unfolded structure diagram of the bearing seal assembly of the high-speed EMU of the present utility model;

[0013] Figure 3 Schematic structure diagram of the dust cover of the present utility model;

[0014] Figure 4This is a schematic diagram of the internal structure of the bearing seal assembly of the present utility model for high-speed multiple units.

[0015] In the figure: 1. Bearing body; 1-1. Ring groove; 2. Card slot; 3. Dust cover; 4. Card post; 5. Bearing inner ring; 6. Sealing ring; 7. Sealing shell; 8. Fixed plate; 9. Spring. Specific embodiments

[0016] The following further details the present application with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant utility model and do not limit the utility model. Additionally, it should be noted that for the sake of description, only the parts related to the utility model are shown in the drawings.

[0017] In the accompanying drawings of the embodiments of the present utility model: Different types of hatching lines in the figure are not marked according to the national standard, nor are the materials of the components required. It is to distinguish the cross-sectional views of the components in the figure.

[0018] Please refer to Figures 1-4 , a bearing seal assembly for high-speed multiple units, including a bearing body 1. There are several card slots 2 on the inner side of the bearing body 1. A ring groove 1-1 is provided on the side of the card slot 2. A dust cover 3 is provided on the side of the bearing body 1. The outer ring of the dust cover 3 is clamped into the ring groove 1-1. The outer diameter surface of the dust cover 3 is smaller than the inner diameter surface of the ring groove 1-1. The outer diameter surface of the dust cover 3 and the inner diameter surface of the ring groove 1-1 are combined and integrated. There are several card posts 4 inside the dust cover 3. The positions of the card posts 4 correspond to those of the card slots 2. The card posts 4 are clamped into the ring groove 1-1 through the dust cover 3 and enter the card slots 2. A bearing inner ring 5 is provided inside the bearing body 1. A sealing ring 6 is provided above the bearing inner ring 5. A sealing shell 7 is provided on the side of the sealing ring 6. The sealing shell 7 is attached to the sealing ring 6. A fixed plate 8 is provided on the side of the sealing shell 7. The fixed plate 8 is attached to the sealing shell 7. Springs 9 are assembled at the left and right ends of the side of the fixed plate 8.

[0019] Among them, the dust cover 3 is installed on one side of the bearing body 1. The card posts 4 are installed on the inner wall of one side of the dust cover 3. Through the dust cover 3, these pollutants can be effectively blocked, keeping the inside of the bearing body 1 clean and reducing the risk of bearing failure caused by pollution.

[0020] Among them, the bearing inner ring 5 is located on the inner wall of the bearing body 1, and the sealing ring 6 is located above the bearing inner ring 5.

[0021] Among them, the sealing shell 7 is installed on one side of the sealing ring 6, the fixed plate 8 is installed on one side of the sealing shell 7, and the springs 9 are symmetrically installed at the left and right ends of the side of the fixed plate 8, so that the sealing ring 6 can be stably installed inside the bearing body 1.

[0022] During use, through the provided dust cover 3, when installing the dust cover 3 on the bearing body 1, by snapping the outer ring of the dust cover 3 into the annular groove 1-1. When the dust cover 3 is snapped into the annular groove 1-1, the clamping post 4 enters the clamping groove 2 through the insertion of the dust cover 3. Thus, through the insertion of the dust cover 3 and the engagement of the clamping post 4 and the clamping groove 2, the dust cover 3 is installed on one side of the bearing body 1;

[0023] Meanwhile, the dust cover 3 is installed at both the left and right ends of the bearing body 1. Therefore, through the installation of the dust cover 3, it prevents external contaminants such as dust, particles, and chemicals from entering the interior of the bearing body 1. Since the high-speed EMU operates in a complex and variable environment, the dust cover 3 can effectively block these contaminants, keep the interior of the bearing body 1 clean, reduce the risk of bearing failure caused by contamination, and by installing the dust cover 3 outside the sealing ring 6, it further ensures that the lubricating oil can be retained inside the bearing body 1, avoiding the loss of lubricating oil, thereby ensuring the lubrication effect of the bearing, extending the service life of the bearing, and providing an additional barrier layer;

[0024] The sealing ring 6 prevents the leakage of the lubricating oil inside the bearing body 1. Through the close fit of the sealing shell 7 and the sealing ring 6, it ensures that the sealing ring 6 is tightly installed on the bearing body 1. Therefore, through the combined use of the sealing shell 7 and the sealing ring 6, the sealing performance of the entire bearing assembly can be significantly enhanced, effectively preventing the leakage of lubricating oil;

[0025] The fixing plate 8 is installed on one side of the sealing ring 6 and the sealing shell 7, and the fixing plate 8 is in contact with the sealing shell 7. Furthermore, through the fixing plate 8, it ensures that the sealing shell 7 can be stably installed on the sealing ring 6, enabling the sealing ring 6 to be stably installed inside the bearing body 1. Therefore, through the fixing plate 8, the precision between the sealing ring 6 and the sealing shell 7 is strengthened. Then, through the spring 9, it ensures that the fixing plate 8 can be closely attached to the sealing shell 7 under different working conditions, maintaining the sealing performance. Furthermore, through the elastic characteristics of the spring 9, it can dynamically adjust the position and tightness of the sealing components during the operation of the bearing to cope with changes in the sealing performance caused by factors such as vibration and temperature changes, achieving an improved sealing effect on the bearing body 1.

[0026] It should be noted that, without conflict, the embodiments and features in the embodiments of this application can be combined with each other. The following will detail this application with reference to the drawings and in combination with the embodiments.

[0027] The above description is only a preferred embodiment of the present application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) disclosed in the present application that have similar functions.

Claims

1. A high-speed train bearing seal assembly, comprising a bearing body (1), characterized in that: The inner side surface of the bearing body (1) is provided with a plurality of slots (2), the side of the slot (2) is provided with an annular groove (1-1), the side of the bearing body (1) is provided with a dust cover (3), the outer ring of the dust cover (3) is inserted into the annular groove (1-1), the outer diameter surface of the dust cover (3) is smaller than the inner diameter surface of the annular groove (1-1), the outer diameter surface of the dust cover (3) and the inner diameter surface of the annular groove (1-1) are combined into one body, and the dust cover (3) is provided with a plurality of clamping columns (4) inside, the clamping columns (4) are located relative to the slot (2). The clamping column (4) is inserted into the annular groove (1-1) through the dust cover (3) and enters the clamping groove (2). A bearing inner ring (5) is provided inside the bearing body (1). A sealing ring (6) is provided on the upper part of the bearing inner ring (5). A sealing shell (7) is provided on the side of the sealing ring (6). The sealing shell (7) is fitted with the sealing ring (6). A fixing plate (8) is provided on the side of the sealing shell (7). The fixing plate (8) is fitted with the sealing shell (7). Springs (9) are installed on the left and right ends of the fixing plate (8).

2. A high-speed train bearing seal assembly according to claim 1, characterized in that: The dust cover (3) is mounted on one side of the bearing body (1), and the clamping column (4) is mounted on the inner wall of one side of the dust cover (3).

3. A high-speed train bearing seal assembly according to claim 1, characterized in that: The bearing inner ring (5) is located on the inner wall of the bearing body (1), and the sealing ring (6) is located above the bearing inner ring (5).

4. A high-speed train bearing seal assembly according to claim 1, characterized in that: The sealing shell (7) is mounted on one side of the sealing ring (6), the fixing plate (8) is mounted on one side of the sealing shell (7), and the spring (9) is symmetrically mounted on the left and right ends of the side of the fixing plate (8).

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