Automatic brushing device for yaw driving bolt

Abstract

The automatic brushing device comprises a box body, a cover body, a brush assembly, a thread rotating structure, a rotating mechanism and a power source, the cover body covers the top of the box body, the interior of the box body is used for containing molybdenum disulfide liquid, the rotating mechanism is in a barrel shape and is rotationally installed at the bottom of the inner side of the box body, and the brush assembly is arranged on the rotating mechanism. A brush assembly is arranged in the rotating mechanism, the threaded rotating structure is installed on the cover body in a threaded fit mode, a through hole used for installing a yaw driving bolt is formed in the center of the threaded rotating structure, the yaw driving bolt is inserted into the box body through the through hole, and a rod body of the yaw driving bolt extends into the center of the brush assembly. The power source is arranged at the bottom of the outer side of the box body and is in transmission connection with the rotating mechanism, and the power source drives the rotating mechanism to drive the brush assembly to automatically brush the yaw driving bolt. According to the yaw driving bolt brushing device, the yaw driving bolt brushing efficiency can be effectively improved, the brushing length is accurately controlled, and the brushing uniformity is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of lubrication and maintenance of yaw drive bolts for wind turbine generator sets, and in particular to an automatic brushing device for yaw drive bolts. Background Technology

[0002] In the wind power industry, the lubrication and maintenance of yaw drive bolts is crucial. Currently, the industry commonly uses manual brushing with molybdenum disulfide to lubricate yaw drive bolts. However, this traditional manual brushing method has several problems, specifically as follows:

[0003] 1. The brushing process is inefficient and the speed of manual operation is limited, making it difficult to meet the maintenance needs of large-scale wind turbine generator sets;

[0004] 2. The brushing length is not easy to control, and it is easy to brush too long or too short, which affects the lubrication effect;

[0005] 3. Uneven coating may result in insufficient lubrication in some areas and excessive lubrication in others. This will not only reduce the service life of the bolts, but may also cause safety hazards and pose potential risks to the stable operation of the wind turbine generator.

[0006] Therefore, there is an urgent need for an automatic brushing device for yaw drive bolts that can improve brushing efficiency, accurately control brushing length, and ensure brushing uniformity to solve this technical pain point. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic brushing device for yaw drive bolts, which can effectively improve the brushing efficiency of yaw drive bolts, accurately control the brushing length, and ensure brushing uniformity.

[0008] The objective of this utility model can be achieved by adopting the following technical solutions:

[0009] An automatic coating device for yaw drive bolts includes a housing, a cover, a brush assembly, a threaded rotating structure, a rotating mechanism, and a power source. The cover fits over the top of the housing, and the interior of the housing contains liquid molybdenum disulfide. The rotating mechanism is cylindrical and rotatably mounted on the inner bottom of the housing. The brush assembly is housed inside the rotating mechanism. The threaded rotating structure is threadedly mounted on the cover, and a through hole is formed at its center for installing the yaw drive bolt. The yaw drive bolt is inserted into the housing through the through hole, with its shaft extending into the center of the brush assembly. The power source is located on the outer bottom of the housing and is connected to the rotating mechanism. The power source drives the rotating mechanism, which in turn drives the brush assembly to automatically coat the yaw drive bolt.

[0010] Furthermore, the center of the cover is provided with an internal thread for engaging with the threaded rotating structure.

[0011] Furthermore, the outer circumferential surface of the threaded rotating structure is provided with an external thread for mating with the cover, and a handle is provided at its top edge to facilitate adjustment of the exposed length of the external thread.

[0012] Furthermore, the liquid level of the molybdenum disulfide is not higher than the top surface of the brush assembly.

[0013] Furthermore, the power source is a servo motor.

[0014] Furthermore, the brush assembly is connected to the rotating mechanism via an interference fit.

[0015] Furthermore, the brush assembly includes a cylindrical rubber ring and a brush disposed on the inner wall of the rubber ring.

[0016] Furthermore, a support is provided at the bottom of the box.

[0017] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0018] The automatic brushing device of this invention has the advantages of simple structure, convenient operation, more precise control of brushing length, more uniform brushing, and high brushing efficiency.

[0019] This utility model's automatic brushing device has a simple structure, is easy to operate and learn, can accurately control the brushing length, and produces a uniform brushing effect, effectively improving coating quality. At the same time, it significantly improves brushing efficiency, saves manpower and time, is suitable for various scenarios, and can significantly improve production efficiency and reduce labor intensity. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the automatic brushing device of this utility model.

[0021] Figure 2 This is a front view of the automatic brushing device of this utility model.

[0022] Figure 3 This is a schematic diagram of the threaded rotation structure of this utility model.

[0023] Figure 4 This is an internal sectional view of the rotating mechanism of this utility model. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0025] like Figures 1 to 4 As shown, this embodiment provides an automatic brushing device for yaw drive bolts, including a housing 1, a cover 2, a brush assembly, a threaded rotating structure 4, a rotating mechanism 5, and a power source 6. The cover 2 covers the top of the housing 1, and a support 7 is provided at the bottom of the housing 1. The inside of the housing 1 is used to hold molybdenum disulfide liquid. The rotating mechanism 5 is cylindrical and rotatably installed on the inner bottom of the housing 1. The brush assembly is installed inside the rotating mechanism 5. The liquid level of molybdenum disulfide is not higher than the top surface of the brush assembly. The threaded rotating structure 4 is installed on the cover 2 by threaded engagement, and its center... A through hole is formed for installing the yaw drive bolt. The power source 6 is located at the bottom outer side of the housing 1 and is connected to the rotating mechanism 5. In this embodiment, the power source 6 is a servo motor. The yaw drive bolt (bolt head facing up and rod body facing down) is inserted into the housing 1 through the through hole, so that its bolt head is above the threaded rotating structure 4 and its rod body extends into the center of the brush assembly. The power source 6 drives the rotating mechanism 5, which in turn drives the brush assembly to automatically brush the yaw drive bolt. The rotation speed of the rotating mechanism 5 is controlled by the servo motor, thereby improving the brushing efficiency.

[0026] The center of the cover 2 is provided with an internal thread for engaging with the threaded rotating structure 4. The outer circumferential surface of the threaded rotating structure 4 is provided with an external thread 401 for engaging with the cover 2. A handle 8 is provided at its top edge to facilitate adjusting the exposed height of the external thread. By adjusting the exposed length of the external thread, the brushing length of the bolt shank can be adjusted. The absolute value of the difference between the distance from the top surface of the threaded rotating structure 4 to the top surface of the brush assembly and the bolt length is the brushing length.

[0027] The brush assembly is connected to the rotating mechanism 5 by an interference fit. The brush assembly includes a cylindrical rubber ring (not shown in the figure) and a brush 3 disposed on the inner wall of the rubber ring.

[0028] The above description is only a preferred embodiment of this utility model patent, but the protection scope of this utility model patent is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed in this utility model patent, based on the technical solution and utility model patent concept of this utility model patent, shall fall within the protection scope of this utility model patent.

Claims

1. An automatic brushing device for yaw drive bolts, characterized in that: The device includes a housing, a cover, a brush assembly, a threaded rotating structure, a rotating mechanism, and a power source. The cover fits over the top of the housing, and the interior of the housing holds liquid molybdenum disulfide. The rotating mechanism is cylindrical and rotatably mounted on the inner bottom of the housing. The brush assembly is housed inside the rotating mechanism. The threaded rotating structure is threaded onto the cover and has a through hole at its center for installing a yaw drive bolt. The yaw drive bolt is inserted into the housing through the through hole, with its shaft extending into the center of the brush assembly. The power source is located on the outer bottom of the housing and is connected to the rotating mechanism. The power source drives the rotating mechanism, which in turn drives the brush assembly to automatically coat the yaw drive bolt.

2. The automatic brushing device for yaw drive bolts according to claim 1, characterized in that: The cover has an internal thread at its center for engaging with the threaded rotating structure.

3. The automatic brushing device for yaw drive bolts according to claim 1, characterized in that: The outer circumferential surface of the threaded rotating structure is provided with an external thread for mating with the cover, and a handle is provided at its top edge to facilitate adjustment of the exposed length of the external thread.

4. The automatic brushing device for yaw drive bolts according to claim 1, characterized in that: The liquid level of molybdenum disulfide is not higher than the top surface of the brush assembly.

5. The automatic brushing device for yaw drive bolts according to claim 1, characterized in that: The power source is a servo motor.

6. The automatic brushing device for yaw drive bolts according to claim 1, characterized in that: The brush assembly and the rotating mechanism are connected by an interference fit.

7. The automatic brushing device for yaw drive bolts according to claim 1 or 6, characterized in that: The brush assembly includes a cylindrical rubber ring and brushes disposed on the inner wall of the rubber ring.

8. The automatic brushing device for yaw drive bolts according to claim 1, characterized in that: A support frame is provided at the bottom of the box.

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