Sand and dust erosion prevention wind power bearing multi-lip wire seal structure

Abstract

The utility model discloses a kind of wind power bearing multi-lip steel wire sealing structures of sand and dust erosion prevention, including outer ring, thread installation groove is opened in the inside of side closed plate, and fixed plate is inserted and installed in thread installation groove inner wall, the inside of fixed plate is vertically fixedly connected with sealing lip, and reinforcing steel wire is embedded and installed in sealing lip inner wall, thread rod groove is opened in the inside and outside of support ring, and fixed bolt is inserted and installed in the inside of side closed plate, fixed plate and thread rod groove inner wall penetration, it is a kind of wind power bearing multi-lip steel wire sealing structure of sand and dust erosion prevention, can be sealed by dust boss, dust buckle groove, sealing lip, cushion block two groups, and can be supported installation, and by thread rod groove, fixed bolt bolt fixation, sealing effect is better, and can be reinforced by reinforcing steel wire Structure reinforcement sealing lip, installation is stable, and can be screwed disassembly and assembly by fixed plate, thread installation groove sealing lip, it is convenient to use quickly replace.

Description

Technical Field

[0001] This utility model relates to the field of wind power bearing technology, specifically a multi-lip steel wire sealing structure for wind power bearings that is resistant to sand and dust erosion. Background Technology

[0002] Wind power, as a clean energy source, is increasingly widely used in the energy sector. Wind turbine bearings, as key components of wind turbine generators, directly affect the overall performance and lifespan of the generator set due to their operational stability and reliability. In areas with high wind and sand intensity, dust particles can easily penetrate the interior of wind turbine bearings, leading to wear, lubrication failure, and ultimately bearing malfunction. This increases maintenance costs and can even cause the wind turbine generator to shut down, affecting power generation efficiency. Bearings with built-in sealing devices can be pre-filled with appropriate grease according to their operating conditions to enhance functionality and extend service life. In existing bearings, the sealing ring is generally fixed within a sealing groove on the outer ring of the bearing.

[0003] The existing multi-lip non-contact bearing seal structure (CN200720046438.9) has the significant advantages of good sealing effect and low frictional torque, which fully meets the design requirements under the working condition of 20,000 rpm. However, it has shortcomings: the existing equipment has a single sealing structure, poor anti-dust erosion effect, poor structural stability, and cannot be independently disassembled and replaced. Therefore, a multi-lip steel wire seal structure for wind turbine bearings that is resistant to dust erosion is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-lip steel wire seal structure for wind turbine bearings that is resistant to sand and dust erosion, so as to solve the problems mentioned in the background art, such as the single sealing structure of the bearing seal structure, poor sand and dust erosion prevention effect, poor structural stability, and inability to be independently disassembled and replaced.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-lip steel wire sealing structure for wind turbine bearings to prevent sand and dust erosion, comprising an outer ring, an inner ring installed on the inner wall of the outer ring, and a ball bearing slidably installed between the outer ring and the inner ring. Dustproof grooves are provided on the inner side of the outer ring and the outer side of the inner ring, and a side sealing plate is installed on the side of the outer ring and the inner ring. A support ring is fitted onto the outer wall of the ball bearing. Dustproof bosses are fixedly connected to the inner and outer edges of the side sealing plate, and the dustproof bosses are engaged with the dustproof grooves. A threaded mounting groove is provided on the inner side of the side sealing plate, and a fixing plate is inserted into the inner wall of the threaded mounting groove. A sealing lip is vertically fixedly connected to the inner side of the fixing plate, and a reinforcing steel wire is embedded in the inner wall of the sealing lip. A pad is fixedly connected to one end of the sealing lip. Threaded rod grooves are provided on the inner and outer sides of the support ring. Fixing bolts are inserted through the inner walls of the side sealing plate, the fixing plate, and the threaded rod grooves.

[0006] Preferably, the outer ring and inner ring are made of copper alloy, and the outer ring and inner ring are slidably installed in a supporting manner with the ball bearings through a supporting ring.

[0007] Preferably, the shape of the side sealing plate matches the shape of the outer ring and the inner ring, and the side sealing plate is installed in a snap-fit ​​and sealed manner with the outer ring and the inner ring in the dustproof groove by means of a dustproof protrusion.

[0008] Preferably, the side sealing plate is bolted to the support ring in the threaded groove by fixing bolts, and the side sealing plate is fitted and sealed to the side sealing plate by sealing lips, and the sealing lips are distributed in four layers on the side sealing plate.

[0009] Preferably, the sealing lip is made of nitrile rubber, the pad is distributed in a rubber serrated structure at one end of the sealing lip, and the reinforcing wire is made of stainless steel wire.

[0010] Preferably, the sealing lip is installed in a spiral joint with the side sealing plate within a threaded mounting groove via a fixing plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This multi-lip steel wire seal structure for wind turbine bearings that is resistant to sand and dust erosion can achieve two sets of seals through dustproof bosses, dustproof grooves, sealing lips, and pads, and can be supported for installation. It is also fixed by threaded rod grooves and fixing bolts, resulting in better sealing effect. Furthermore, the sealing lip can be structurally reinforced by reinforcing steel wires, ensuring stable installation. The sealing lip can be screwed on and off by fixing plates and threaded mounting grooves, facilitating quick replacement. Moreover, the materials of the outer and inner rings, the sealing lip, and the reinforcing steel wires effectively prevent corrosion. Attached Figure Description

[0012] Figure 1 This is a front view of a multi-lip steel wire seal structure for wind turbine bearings designed to prevent sand and dust erosion, according to this utility model.

[0013] Figure 2 This is a side view of the internal structure of a multi-lip steel wire seal structure for wind turbine bearings designed to prevent sand and dust erosion, according to this utility model.

[0014] Figure 3 This utility model relates to a multi-lip steel wire seal structure for wind turbine bearings designed to prevent sand and dust erosion. Figure 2 Enlarged view of point A in the middle;

[0015] Figure 4 This utility model relates to a multi-lip steel wire seal structure for wind turbine bearings designed to prevent sand and dust erosion. Figure 2 Enlarged view at point B in the middle;

[0016] Figure 5 This utility model relates to a multi-lip steel wire seal structure for wind turbine bearings designed to prevent sand and dust erosion. Figure 2 Enlarged view of point C in the middle.

[0017] In the diagram: 1. Outer ring, 2. Inner ring, 3. Ball bearing, 4. Support ring, 5. Side sealing plate, 6. Dustproof boss, 7. Dustproof groove, 8. Fixing plate, 9. Threaded mounting groove, 10. Sealing lip, 11. Pad, 12. Reinforcing steel wire, 13. Threaded rod groove, 14. Fixing bolt. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-5 This utility model provides a technical solution: a multi-lip steel wire seal structure for wind turbine bearings to prevent sand and dust erosion, including an outer ring 1, an inner ring 2, balls 3, a support ring 4, a side sealing plate 5, a dustproof boss 6, a dustproof groove 7, a fixing plate 8, a threaded mounting groove 9, a sealing lip 10, a pad 11, a reinforcing steel wire 12, a threaded rod groove 13, and a fixing bolt 14. The inner ring 2 is installed on the inner wall of the outer ring 1, and the balls 3 are slidably installed between the outer ring 1 and the inner ring 2. The outer ring 1 and the inner ring 2 are made of copper alloy, and the outer ring 1 and the inner ring 2 are slidably installed with the balls 3 through the support ring 4. This makes the outer ring 1 and the inner ring 2 effectively wear-resistant and corrosion-resistant, and can effectively conduct heat and dissipate heat, resulting in excellent performance.

[0020] Dustproof grooves 7 are provided on the inner side of the outer ring 1 and the outer side of the inner ring 2. A side sealing plate 5 is installed between the outer ring 1 and the inner ring 2. The shape of the side sealing plate 5 matches the shape of the interval between the outer ring 1 and the inner ring 2. The side sealing plate 5 is installed in a snap-fit ​​seal with the outer ring 1 and the inner ring 2 in the dustproof groove 7 through the dustproof protrusion 6. This makes it easy to snap-fit ​​and seal the side sealing plate 5 and to position it for easy installation.

[0021] The side sealing plate 5 is bolted to the support ring 4 in the threaded groove 13 by fixing bolts 14. The side sealing plate 5 is also installed in close contact with the sealing lip 10. The sealing lip 10 is distributed in four layers on the side sealing plate 5. This allows the side sealing plate 5 to be further sealed by the sealing lip 10 and can be bolted. The installation is stable and easy to disassemble.

[0022] The outer wall of the ball bearing 3 is fitted with a support ring 4. The inner and outer edges of the side sealing plate 5 are fixedly connected with dustproof bosses 6, which are fastened to dustproof grooves 7. The inner side of the side sealing plate 5 is provided with a threaded mounting groove 9, and a fixing plate 8 is inserted into the inner wall of the threaded mounting groove 9. A sealing lip 10 is vertically fixed to the inner side of the fixing plate 8, and a reinforcing steel wire 12 is embedded in the inner wall of the sealing lip 10. The sealing lip 10 is made of nitrile rubber. The pad 11 is distributed with a rubber serrated structure at one end of the sealing lip 10. The reinforcing steel wire 12 is made of stainless steel wire. This structure strengthens the sealing lip 10 and the reinforcing steel wire 12, resulting in better performance.

[0023] The sealing lip 10 is installed in a spiral splice with the side sealing plate 5 in the threaded mounting groove 9 through the fixing plate 8. This makes it easy to disassemble and replace the sealing lip 10 independently. One end of the sealing lip 10 is fixedly connected to a pad 11. The inner and outer sides of the support ring 4 are provided with threaded rod grooves 13. The inner walls of the side sealing plate 5, the fixing plate 8 and the threaded rod grooves 13 are fitted with fixing bolts 14.

[0024] Working principle: When using this multi-lip steel wire seal structure for wind turbine bearings that is resistant to sand and dust erosion, the device is first assembled and installed. Then, the side sealing plate 5 and the sealing lip 10 are fastened to the outer ring 1 and inner ring 2 through the dustproof boss 6 and dustproof fastening groove 7. Next, they are fixed to the support ring 4 through the threaded rod groove 13 and fixing bolt 14. Then, they are installed and used. During use, two sets of sealing treatments can be performed through the dustproof boss 6, dustproof fastening groove 7 and sealing lip 10. The sealing lip 10 is reinforced by the reinforcing steel wire 12. When the sealing lip 10 is damaged, it can be independently disassembled and replaced by screwing on the fixing plate 8 and threaded mounting groove 9. This is the usage process of this multi-lip steel wire seal structure for wind turbine bearings that is resistant to sand and dust erosion.

[0025] It should be noted that this utility model is a multi-lip steel wire sealing structure for wind turbine bearings to prevent sand and dust erosion. All components are standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Furthermore, all electrical components mentioned above refer to power elements, electrical components, and the matching monitoring computer and power supply connected by wires. The specific connection method should refer to the working principle described above, where the electrical connection between each electrical component is completed in sequence. The detailed connection method is a well-known technology in the field.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-lip steel wire seal structure for wind turbine bearings resistant to sand and dust erosion, comprising an outer ring (1), an inner ring (2) installed on the inner wall of the outer ring (1), and ball bearings (3) slidably installed between the outer ring (1) and the inner ring (2), characterized in that: Dustproof grooves (7) are provided on the inner side of the outer ring (1) and the outer side of the inner ring (2), and a side sealing plate (5) is installed between the outer ring (1) and the inner ring (2). A support ring (4) is fitted on the outer wall of the ball (3). Dustproof bosses (6) are fixedly connected to the inner and outer edges of the side sealing plate (5), and the dustproof bosses (6) are fastened to the dustproof grooves (7). A threaded mounting groove (9) is provided on the inner side of the side sealing plate (5), and the threaded mounting groove is provided. A fixing plate (8) is installed in the inner wall of the groove (9). A sealing lip (10) is vertically fixed to the inner side of the fixing plate (8), and a reinforcing steel wire (12) is embedded in the inner wall of the sealing lip (10). A pad (11) is fixedly connected to one end of the sealing lip (10). Threaded rod grooves (13) are opened on the inner and outer sides of the support ring (4). Fixing bolts (14) are installed through the inner walls of the side sealing plate (5), the fixing plate (8), and the threaded rod groove (13).

2. The multi-lip steel wire seal structure for wind turbine bearings against sand and dust erosion according to claim 1, characterized in that: The outer ring (1) and inner ring (2) are made of copper alloy, and the outer ring (1) and inner ring (2) are fitted and slidably installed with the ball (3) through the support ring (4).

3. The multi-lip steel wire seal structure for wind turbine bearings against sand and dust erosion according to claim 2, characterized in that: The shape of the side sealing plate (5) matches the shape of the outer ring (1) and the inner ring (2) spaced apart, and the side sealing plate (5) is installed in a snap-fit ​​seal with the outer ring (1) and the inner ring (2) in the dustproof groove (7) through the dustproof boss (6).

4. The multi-lip steel wire seal structure for wind turbine bearings against sand and dust erosion according to claim 3, characterized in that: The side sealing plate (5) is bolted to the support ring (4) in the threaded rod groove (13) by fixing bolts (14), and the side sealing plate (5) is fitted and sealed to the side sealing plate (5) by sealing lip (10), and the sealing lip (10) is distributed in four layers on the side sealing plate (5).

5. The multi-lip steel wire seal structure for wind turbine bearings against sand and dust erosion according to claim 4, characterized in that: The sealing lip (10) is made of nitrile rubber, the pad (11) is distributed in a rubber serrated structure at one end of the sealing lip (10), and the reinforcing steel wire (12) is made of stainless steel wire.

6. The multi-lip steel wire seal structure for wind turbine bearings against sand and dust erosion according to claim 5, characterized in that: The sealing lip (10) is installed in a spiral splice with the side sealing plate (5) in the threaded mounting groove (9) by the fixing plate (8).

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