Wind power sealing brush with good sealing performance

Abstract

The utility model discloses a wind power sealing brush with good sealing performance, which relates to the technical field of wind power and comprises a fixed base, and a wedge-shaped elastic expansion component is arranged in the fixed base. The wedge-shaped elastic expansion assembly comprises an elastic fixing layer arranged in the fixing base, guiding sliding rails which are symmetrically arranged are arranged in the elastic fixing layer, and the section of each guiding sliding rail is in a T shape. The interior of the elastic fixing layer is connected with a wedge-shaped sliding block, a T-shaped groove is formed in the wedge-shaped sliding block, and the guide sliding rail is embedded into the T-shaped groove. The top of the wedge-shaped sliding block is connected with a brush base. The wedge-shaped elastic expansion assembly is arranged in the fixed base, and the problems that an existing wind power sealing brush is difficult to adapt to complex and changeable deformation and displacement of equipment parts, so that the sealing performance is reduced, the equipment is prone to being damaged by external impurities, the operation stability is reduced, and the service life is shortened can be solved.

Description

Technical Field

[0001] This utility model relates to the field of wind power technology, specifically to a wind power sealing brush with good sealing performance. Background Technology

[0002] Wind turbine sealing brushes are installed on parts of wind turbine equipment, such as the connection between the nacelle and the tower. By utilizing the tight physical barrier formed by the brush bristles and the contact surface, they perform a sealing function, effectively preventing external debris such as sand and rainwater from entering the equipment and preventing damage to internal components due to corrosion. At the same time, they also play a certain role in sound insulation and noise reduction, reducing the outward transmission of noise generated during equipment operation, ensuring stable, efficient and low-noise operation of wind turbine equipment, and extending the service life of the equipment.

[0003] Patent document CN220571739U discloses a wind turbine sealing brush. This document mainly addresses the problem that existing wind turbine sealing brushes, due to their threaded rods in the threaded grooves, not only result in a large gap between the mounting plate and the functional plate, but also have weak stability. Since wind turbines are located at high altitudes and in environments with relatively strong winds, their stability is poor and they are easily damaged by wind. However, it does not take into account the fact that existing wind turbine sealing brushes cannot adapt to the complex and varied deformations and displacements of equipment components, which leads to a decrease in sealing performance, susceptibility of the equipment to external impurities, reduced operational stability, and reduced service life. Utility Model Content

[0004] The purpose of this utility model is to provide a wind power sealing brush with good sealing performance, so as to solve the problems mentioned in the background art, that the existing wind power sealing brush is difficult to adapt to the complex and varied deformation and displacement of equipment components, resulting in a decrease in sealing performance, susceptibility of equipment to external impurities, reduced operational stability and service life.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wind power sealing brush with good sealing performance, including a fixed base, wherein a wedge-shaped elastic expansion component is provided inside the fixed base;

[0006] The wedge-shaped elastic expansion assembly includes an elastic fixing layer disposed inside the fixed base, and symmetrically arranged guide rails are disposed inside the elastic fixing layer. The cross-section of the guide rails is T-shaped.

[0007] The elastic fixing layer has a wedge-shaped slider inside, and the wedge-shaped slider has a T-shaped groove inside, with a guide rail embedded in the T-shaped groove;

[0008] The top of the wedge-shaped slider is connected to a brush holder. The wedge-shaped elastic expansion assembly is used to adjust the position of the brush holder according to the deformation and displacement between the equipment components during the operation of the wind power equipment.

[0009] Preferably, the surface of the guide rail is provided with a serrated shallow groove, and a rollable roller with a tooth pattern matching the serrated shallow groove is installed at the corresponding position of the T-shaped groove.

[0010] Preferably, a plurality of buffer springs are evenly arranged between the elastic fixing layer and the fixing base, with one end of the buffer spring located inside the elastic fixing layer and the other end of the buffer spring located inside the fixing base.

[0011] Preferably, shock-absorbing pads are installed at both ends of the buffer spring, and the shock-absorbing pads are installed inside the elastic fixing layer and the fixing base;

[0012] The shock-absorbing pads are made of polyurethane material.

[0013] Preferably, the buffer spring adopts a double-layer nested structure, with the inner spring being a manganese steel spring, and each coil of the manganese steel spring having multiple hemispherical protrusions evenly spaced on its surface.

[0014] Preferably, the outer spring is a rubber spring, and a hemispherical groove is formed on the inner wall of the rubber spring corresponding to the position of the hemispherical protrusion.

[0015] Preferably, a combined brush is installed on the top of the brush holder. The combined brush includes a main brush layer installed on the top of the brush holder, and an auxiliary brush layer connected to the top of the main brush layer. The main brush layer is made of nylon bristles, and the auxiliary brush layer is made of silicone bristles.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model incorporates a wedge-shaped elastic expansion component within a fixed base. This component comprises an elastic fixing layer, a T-shaped guide rail, and a wedge-shaped slider with a T-groove. During the actual operation of wind power equipment, components are affected by various complex factors such as wind force changes, temperature fluctuations, and mechanical stress, resulting in complex deformations and displacements. Traditional wind power sealing brushes often have a fixed structure, making it difficult to adjust accordingly to these dynamic changes. This leads to increased sealing gaps, allowing external dust and moisture to easily penetrate the equipment, thus affecting its normal operation and service life. The wedge-shaped elastic expansion component of this utility model, however, can sense these subtle changes in the equipment components and respond quickly. When a component deforms or shifts, the wedge-shaped slider slides along a specific trajectory under the constraint of the guide rail, thereby adjusting the position of the connected brush holder. This adaptive adjustment mechanism ensures that the combined brush always fits tightly against the surface of the equipment components, effectively reducing the sealing gap and greatly improving the adaptability of the wind power sealing brush to the deformation and displacement of the equipment components. Compared with the prior art, this invention not only provides a stable and reliable sealing effect during normal equipment operation, but also maintains good sealing performance when the equipment faces complex operating conditions and dynamic changes. For example, in windy weather or when the equipment is frequently started and stopped, the deformation and displacement of the equipment components are more obvious, and traditional sealing brushes may fail to seal. However, the wind power sealing brush of this invention can maintain efficient sealing continuously with its adaptive adjustment function. It can solve the problem that existing wind power sealing brushes are unable to adapt to the complex and ever-changing deformation and displacement of equipment components, which leads to a decline in sealing performance, susceptibility of the equipment to external impurities, and reduced operational stability and service life.

[0018] 2. This utility model uses shock-absorbing pads made of polyurethane material installed at both ends of the buffer spring. Polyurethane material has good elasticity, wear resistance, and shock absorption performance. When the wind power equipment vibrates during operation, the shock-absorbing pads can effectively absorb and disperse the vibration energy, reducing the impact of vibration on the buffer spring and other components. Compared with traditional shock absorption methods, polyurethane shock-absorbing pads can more accurately cope with vibrations of different frequencies and amplitudes, avoiding component loosening and damage caused by vibration transmission. Furthermore, the buffer spring adopts a double-layer nested structure, with an inner layer of manganese steel spring and an outer layer of rubber spring. The manganese steel spring has high strength and good elastic recovery capability, with multiple hemispherical protrusions evenly spaced on the surface of each coil of spring wire. The rubber spring has good flexibility and cushioning performance, with hemispherical grooves on its inner wall corresponding to the positions of the hemispherical protrusions. When the spring is under pressure, the hemispherical protrusions of the inner manganese steel spring will embed into the hemispheres of the outer rubber spring. The groove not only increases the elastic modulus of the spring but also further enhances its buffering and shock absorption effect. In practical applications, wind power equipment is affected by various factors such as wind force or mechanical vibration during operation, resulting in complex vibrations and impacts. Traditional buffer springs have a simple structure and are difficult to effectively cope with these complex vibrations, which can easily lead to spring fatigue and damage, thus affecting the service life of the entire sealing brush. However, the innovative buffering and shock absorption structure of this utility model can absorb and disperse vibration energy step by step, greatly improving the buffering and shock absorption performance of wind power sealing brushes. It can solve the problem that the existing wind power sealing brush buffer springs have a simple structure and are difficult to cope with complex vibrations, leading to spring fatigue and damage or component loosening, which affects the service life of the sealing brush and the stability of the equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a front structural diagram of the brush holder and combined brush of this utility model.

[0021] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 4 This is a schematic diagram of the assembly structure of the guide rail and T-slot of this utility model;

[0023] Figure 5 This is a top view of the brush holder and combined brush of this utility model.

[0024] In the diagram: 1. Fixed base; 2. Elastic fixing layer; 3. Guide slide rail; 4. Wedge-shaped slider; 5. Brush holder; 6. Serrated shallow groove; 7. Roller; 8. Buffer spring; 9. Shock-absorbing pad; 10. Combined brush; 11. T-slot. Detailed Implementation

[0025] 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.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The present invention provides an embodiment of a wind power sealing brush with good sealing performance, including a fixed base 1, wherein a wedge-shaped elastic expansion component is provided inside the fixed base 1.

[0028] The wedge-shaped elastic expansion assembly includes an elastic fixing layer 2 disposed inside the fixed base 1, and symmetrically arranged guide rails 3 disposed inside the elastic fixing layer 2. The cross-section of the guide rails 3 is T-shaped.

[0029] The elastic fixing layer 2 is internally connected to a wedge-shaped slider 4, and the wedge-shaped slider 4 has a T-shaped groove 11 inside, and the guide rail 3 is embedded in the T-shaped groove 11;

[0030] The top of the wedge-shaped slider 4 is connected to a brush holder 5. The wedge-shaped elastic expansion assembly is used to adjust the position of the brush holder 5 according to the deformation and displacement between the equipment components during the operation of the wind power equipment.

[0031] The surface of the guide rail 3 is provided with a serrated shallow groove 6, and a roller 7 with a tooth pattern matching the serrated shallow groove 6 is installed at the corresponding position of the T-shaped groove 11.

[0032] Furthermore, the elastic fixing layer 2 is set inside the fixing base 1, which provides a certain elastic mounting base for the entire wedge elastic expansion assembly. The guide slide rail 3 is installed inside the elastic fixing layer 2 and is arranged symmetrically. Its cross-section is T-shaped. The guide slide rail 3 provides precise guidance for the sliding of the wedge slider 4, ensuring that the wedge slider 4 can only slide along the direction of the guide slide rail 3, avoiding the slider from deviating or shaking during the sliding process. At the same time, the surface of the guide slide rail 3 is provided with a serrated shallow groove 6.

[0033] The wedge-shaped slider 4 is connected inside the elastic fixing layer 2, and a T-shaped groove 11 is opened inside it. The guide rail 3 is embedded in the T-shaped groove 11. This cooperation allows the wedge-shaped slider 4 to slide smoothly on the guide rail 3. At the position of the T-shaped groove 11 corresponding to the serrated shallow groove 6 of the guide rail 3, a rollable roller 7 with a toothed surface that matches the serrated shallow groove 6 is installed. When the wedge-shaped slider 4 slides, the roller 7 rolls in the serrated shallow groove 6, which not only reduces the friction during the sliding process and improves the smoothness of the sliding, but also enables fine adjustment of the position of the wedge-shaped slider 4 to a certain extent through the cooperation of the toothed surface and the serrated shallow groove 6, thus enhancing the adjustment accuracy of the component.

[0034] The brush holder 5 is connected to the top of the wedge slider 4. The main function of the wedge elastic expansion component is to adjust the position of the brush holder 5 by sliding the wedge slider 4 according to the deformation and displacement between the equipment components during the operation of the wind power equipment. This ensures that the combined brush 10 installed on the brush holder 5 always keeps in close contact with the surface of the equipment components, thereby improving the sealing performance.

[0035] Please see Figure 3 One embodiment of this utility model is a wind power sealing brush with good sealing performance. Multiple buffer springs 8 are evenly arranged between the elastic fixing layer 2 and the fixing base 1, and one end of the buffer spring 8 is arranged inside the elastic fixing layer 2, and the other end of the buffer spring 8 is arranged inside the fixing base 1.

[0036] The buffer spring 8 is equipped with shock-absorbing pads 9 at both ends, and the shock-absorbing pads 9 are installed inside the elastic fixing layer 2 and the fixing base 1;

[0037] The shock-absorbing pad 9 is made of polyurethane material.

[0038] The buffer spring 8 adopts a double-layer nested structure. The inner spring is a manganese steel spring, and each coil of the manganese steel spring has multiple hemispherical protrusions evenly spaced on its surface.

[0039] The outer spring is a rubber spring, and a hemispherical groove is provided on the inner wall of the rubber spring corresponding to the position of the hemispherical protrusion.

[0040] Furthermore, multiple buffer springs 8 are evenly arranged between the elastic fixing layer 2 and the fixing base 1. One end of the buffer spring 8 is located inside the elastic fixing layer 2, and the other end is located inside the fixing base 1. The buffer spring 8 adopts a double-layer nested structure. The inner spring is a manganese steel spring. Manganese steel springs have high strength and good elastic recovery ability, and can withstand large pressure and quickly return to their original shape. Multiple hemispherical protrusions are evenly arranged on the surface of each coil of manganese steel spring wire. The outer spring is a rubber spring. Rubber springs have good flexibility and buffering performance. Hemispherical grooves are opened on its inner wall corresponding to the hemispherical protrusions.

[0041] When the spring is under pressure, the hemispherical protrusion of the inner manganese steel spring will embed into the hemispherical groove of the outer rubber spring. This structure not only increases the elastic modulus of the spring, enabling the spring to generate greater elastic deformation to absorb more energy when under force, but also further enhances the spring's buffering and shock absorption effect. During the operation of wind power equipment, the buffer spring 8 can effectively absorb and disperse the vibration and impact generated by the equipment, protecting the wedge-shaped elastic expansion component and other components from excessive impact force.

[0042] The buffer spring 8 is equipped with shock-absorbing pads 9 at both ends, and the shock-absorbing pads 9 are installed inside the elastic fixing layer 2 and the fixing base 1. The shock-absorbing pads 9 are made of polyurethane material, which has good elasticity, wear resistance and shock absorption performance. When the buffer spring 8 is vibrated, the shock-absorbing pads 9 can further absorb and disperse the vibration energy, reduce the impact of vibration on the buffer spring 8 and surrounding components, and avoid loosening and damage of components due to vibration transmission.

[0043] Please see Figure 1 , Figure 2 , Figure 3 and Figure 5 One embodiment of this utility model is a wind power sealing brush with good sealing performance. A combined brush 10 is installed on the top of the brush holder 5. The combined brush 10 includes a main brush layer installed on the top of the brush holder 5, and an auxiliary brush layer connected to the top of the main brush layer. The main brush layer is made of nylon bristles, and the auxiliary brush is made of silicone bristles.

[0044] Furthermore, the combined brush 10 is installed on top of the brush holder 5. It includes a main brush layer and an auxiliary brush layer. The main brush layer uses nylon bristles, which have high strength and wear resistance and can maintain good shape and performance when in contact with the surface of the equipment parts, providing the main sealing effect. The auxiliary brush layer uses silicone bristles, which have good flexibility and elasticity and can better conform to the irregular shape of the surface of the equipment parts, filling gaps that the main brush layer may not be able to completely cover, further enhancing the sealing effect. Through the cooperation of the main brush layer and the auxiliary brush layer, the combined brush 10 can effectively prevent external dust, moisture and other impurities from entering the wind power equipment, improving the overall sealing performance of the wind power sealing brush.

[0045] Working principle: The elastic fixing layer 2 in the wedge-shaped elastic expansion component inside the fixed base 1 first senses these subtle changes in the equipment components. The elastic fixing layer 2 has a certain elasticity and can sensitively respond to the dynamic changes of the equipment components.

[0046] As the elastic fixing layer 2 senses the change, the connected wedge slider 4 begins to move. The wedge slider 4 has a T-shaped groove 11 inside, and the guide rail 3 inside the elastic fixing layer 2 is embedded in the T-shaped groove 11. Since the cross-section of the guide rail 3 is T-shaped, it provides precise sliding guidance for the wedge slider 4. At the same time, the serrated shallow groove 6 on the surface of the guide rail 3 cooperates with the roller 7 with matching teeth installed at the corresponding position of the T-shaped groove 11. When the wedge slider 4 slides, the roller 7 rolls in the serrated shallow groove 6, which reduces the sliding friction and allows the wedge slider 4 to slide more smoothly along the guide rail 3. On the other hand, through the cooperation of the teeth and the serrated shallow groove 6, the position of the wedge slider 4 can also be finely adjusted to a certain extent.

[0047] The sliding of the wedge-shaped slider 4 causes the brush holder 5 connected to its top to adjust its position. In this way, the combined brush 10 installed on the brush holder 5 can always maintain a tight fit with the surface of the equipment component, achieving an adaptive sealing effect.

[0048] During the operation of wind power equipment, it will be affected by various factors such as wind force and mechanical vibration, resulting in vibration and impact. At this time, the buffer spring 8 and the shock-absorbing pad 9 will start to work.

[0049] Multiple buffer springs 8, evenly arranged between the elastic fixing layer 2 and the fixed base 1, play their initial role. The buffer springs 8 adopt a double-layer nested structure, with a manganese steel spring as the inner layer and a rubber spring as the outer layer. When the equipment vibrates and is impacted, the pressure is transmitted to the buffer springs 8. The manganese steel spring has high strength and good elastic recovery ability. Multiple hemispherical protrusions are evenly arranged on the surface of each coil of spring wire, which cooperate with the hemispherical grooves opened at corresponding positions on the inner wall of the outer rubber spring. When the spring is under pressure, the hemispherical protrusions of the inner manganese steel spring are embedded in the hemispherical grooves of the outer rubber spring. This structure increases the elastic modulus of the spring, enabling the spring to produce greater elastic deformation when under force to absorb more vibration energy.

[0050] The shock-absorbing pads 9 made of polyurethane material installed at both ends of the buffer spring 8 further absorb and disperse vibration energy. Polyurethane material has good elasticity, wear resistance and shock absorption performance. When the buffer spring 8 is vibrated, the shock-absorbing pads 9 can effectively reduce the impact of vibration on the buffer spring 8 and surrounding components, and avoid loosening and damage of components due to vibration transmission.

[0051] The combined brush 10 is installed on top of the brush holder 5. Its main brush layer and auxiliary brush layer work together to achieve the sealing function. The main brush layer is made of nylon bristles, which have high strength and wear resistance. When the wind power equipment is running, the main brush layer comes into contact with the surface of the equipment components. With its own strength and wear resistance, it maintains a good shape and performance, providing the main barrier for sealing and blocking the intrusion of external dust, moisture and other impurities.

[0052] The auxiliary brush layer uses silicone bristles, which have good flexibility and elasticity. They can better conform to the irregular shape of the equipment component surface, fill the gaps that the main brush layer may not be able to completely cover, and further enhance the sealing effect of the combined brush 10, ensuring that the inside of the wind power equipment is not affected by external impurities.

[0053] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0054] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A wind turbine sealing brush with good sealing performance, comprising a fixed base (1), characterized in that: The fixed base (1) is provided with a wedge-shaped elastic expansion component inside; The wedge-shaped elastic expansion assembly includes an elastic fixing layer (2) disposed inside the fixed base (1), and symmetrically arranged guide rails (3) are disposed inside the elastic fixing layer (2), with the cross section of the guide rails (3) being T-shaped; The elastic fixing layer (2) is internally connected to a wedge-shaped slider (4), and a T-shaped groove (11) is provided inside the wedge-shaped slider (4), and the guide rail (3) is embedded in the T-shaped groove (11); The top of the wedge slider (4) is connected to a brush seat (5). The wedge elastic expansion assembly is used to adjust the position of the brush seat (5) according to the deformation and displacement between the equipment components during the operation of the wind power equipment.

2. The wind turbine sealing brush with good sealing performance according to claim 1, characterized in that: The guide rail (3) has a serrated shallow groove (6) on its surface, and a roller (7) with teeth matching the serrated shallow groove (6) is installed at the corresponding position of the T-shaped groove (11).

3. The wind power sealing brush with good sealing performance according to claim 1, characterized in that: Multiple buffer springs (8) are uniformly arranged between the elastic fixing layer (2) and the fixing base (1), with one end of the buffer spring (8) located inside the elastic fixing layer (2) and the other end of the buffer spring (8) located inside the fixing base (1).

4. A wind power sealing brush with good sealing performance according to claim 3, characterized in that: The buffer spring (8) has shock-absorbing pads (9) installed at both ends, and the shock-absorbing pads (9) are installed inside the elastic fixing layer (2) and the fixing base (1); The shock-absorbing pad (9) is made of polyurethane material.

5. A wind turbine sealing brush with good sealing performance according to claim 3, characterized in that: The buffer spring (8) adopts a double-layer nested structure. The inner spring is a manganese steel spring, and multiple hemispherical protrusions are evenly spaced on the surface of each coil of the manganese steel spring.

6. A wind turbine sealing brush with good sealing performance according to claim 5, characterized in that: The outer spring of the buffer spring (8) is a rubber spring, and a hemispherical groove is provided on the inner wall of the rubber spring corresponding to the position of the hemispherical protrusion.

7. A wind turbine sealing brush with good sealing performance according to claim 1, characterized in that: The top of the brush holder (5) is equipped with a combined brush (10). The combined brush (10) includes a main brush layer installed on the top of the brush holder (5), and an auxiliary brush layer connected to the top of the main brush layer. The main brush layer is made of nylon bristles, and the auxiliary brush layer is made of silicone bristles.

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