Suction head and wind turbine generator system

Abstract

The utility model relates to wind power generation equipment maintenance technical field discloses the suction head and wind generating set, wherein, the suction head includes the casing, the scraper, the brush head structure and the adsorption structure, through setting up the scraper and the brush head structure, not only will the surface material of the piece to be scraped off be brushed, but also can the material on the piece to be scraped be scraped and cleaned, thereby improving the completeness of the surface material cleaning of the piece to be scraped off. In this process, the adsorption structure adsorbs the material, avoiding the material from spreading to the outside and affecting the user's health. When the air inlet is located on the other side of the scraper, the suction head moves along the direction from the brush head structure to the scraper under the external force, and when the air inlet is located on the side away from the scraper of the brush head structure, the suction head moves along the direction from the scraper to the brush head structure under the external force, so that the material scraped by the scraper and the brush head structure can be directly placed near the air inlet of the adsorption structure, thereby achieving the technical effect of improving the reliability of material cleaning.

Description

Technical Field

[0001] This utility model relates to the field of wind power equipment maintenance technology, specifically to a suction head and a wind turbine generator set. Background Technology

[0002] As a critical braking component of wind turbine generators, the surface cleanliness of the yaw brake disc directly affects the yaw accuracy and braking safety of the generator. Specifically, due to the long-term operation of wind turbine generators, the working surface of the yaw brake disc easily accumulates a mixture of pollutants, including metal shavings, lubricating oil carbonization products, and environmental dust. This mixture of pollutants poses the following hazards: 1) This mixed contaminant can easily cause abnormal enamel formation on brake pads, reducing the coefficient of friction and affecting the braking performance of the brake pads; 2) The mixed contaminants provide the necessary conductive medium for electrochemical corrosion, resulting in greater corrosion at locations on the brake disc surface where the mixed contaminants are present, thus causing non-uniform corrosion on the brake disc surface; 3) The mixed pollutants disrupted the stability of the brake disc friction interface and changed the friction characteristics, contact state and vibration conditions of the brake disc, which excited the high-frequency self-excited vibration of the wind turbine generator, resulting in high-frequency braking squeal. 4) The mixed pollutants cause uneven distribution of braking pressure in the wind turbine generator set, accelerating the wear and tear of the hydraulic system of the wind turbine generator set.

[0003] Existing methods for cleaning yaw brake discs using brushes are inefficient. Due to moisture and caking of some mixed contaminants, there are blind spots exceeding 20% ​​during brush cleaning, resulting in incomplete cleaning. Furthermore, a single cleaning session can take up to 50 minutes, which is extremely time-consuming. Additionally, the cleaning process easily generates dust, potentially harming the health of cleaning personnel. The cleaned mixed contaminants are then vacuumed from the wind turbine. However, existing vacuum cleaner heads are wider than 150cm, while the space around the yaw brake disc is limited to ≤35cm. This prevents the vacuum cleaner head from reaching the yaw brake disc area for cleaning, reducing the effective suction power and hindering the efficient and complete removal of the mixed contaminants from the yaw brake disc. Utility Model Content

[0004] In view of this, this utility model provides a suction head and a wind turbine generator set to solve the problem of existing yaw brake disc cleaning operations using brushes. Due to the dampness and caking of some mixed contaminants, the brush cleaning process not only has blind spots exceeding 20%, resulting in incomplete cleaning, but also takes up to 48 minutes per cycle, which is extremely time-consuming. Furthermore, the cleaning process easily generates dust, affecting the health of cleaning personnel. The cleaned mixed contaminants are then suctioned by a vacuum cleaner used to clean the wind turbine generator set. However, because the width of existing vacuum cleaner heads is >150cm, while the space around the yaw brake disc is limited to ≤35cm, the suction head cannot reach into the space of the yaw brake disc for cleaning, reducing the effective suction power of the suction head for the mixed contaminants and preventing the mixed contaminants from being efficiently and completely removed from the yaw brake disc.

[0005] In a first aspect, this utility model provides a suction head, comprising: A housing, including a receiving cavity, wherein one side of the housing has an opening so that the receiving cavity communicates with the outside through the opening; A scraper, one end of which is disposed in the receiving cavity through the opening and connected to the housing, and the other end of which protrudes from the opening, is used to scrape off the material that has hardened on the workpiece; The brush head structure has one end located in the receiving cavity through the opening and connected to the housing, and the other end of the brush head structure protrudes from the opening and is located on one side of the scraper, for cleaning the substance on the workpiece to be scraped; An adsorption structure is connected to the housing and is located on the same side of the housing as the scraper and the brush head structure. The adsorption structure is provided with a recovery channel. The two ends of the recovery channel are used as an air inlet and an air outlet for communicating with the outside. The air inlet is located on the other side of the scraper or on the side of the brush head structure away from the scraper, so that the substance can be adsorbed through the air inlet and collected through the air outlet. When the air inlet is located on the other side of the scraper, an external force drives the suction head to move along the direction from the brush head structure to the scraper. When the air inlet is located on the side of the brush head structure away from the scraper, an external force drives the suction head to move along the direction from the scraper to the brush head structure.

[0006] Beneficial Effects: By incorporating a scraper, brush head, and suction structure, the scraper and brush head not only remove substances from the surface of the workpiece but also scrape away substances that have adhered to it, thus improving the completeness of surface cleaning. During this process, the suction structure adsorbs the substances, preventing them from spreading and affecting the user's health. Furthermore, by positioning the scraper, brush head, and suction structure on the same side of the housing, the scraper and brush head can simultaneously scrape the workpiece, enhancing the ease of use of the suction head. Even further, by positioning the air inlet on the opposite side of the scraper, external force drives the suction head to move along the direction from the brush head structure to the scraper; conversely, by positioning the air inlet on the side of the brush head structure away from the scraper, external force drives the suction head to move along the direction from the scraper to the brush head structure. Based on this, the material scraped off by the scraper and brush head structure can be placed directly near the air inlet of the adsorption structure, so that the adsorption structure can directly adsorb the scraped material, thereby improving the reliability of material cleaning.

[0007] In one optional embodiment, the air inlet is located on the other side of the scraper. The adsorption structure includes a horizontal portion and a vertical portion, which form an "L" shape. The horizontal portion is located between the vertical portion and the scraper, such that a cross-section is taken along the axis perpendicular to the vertical portion. The length and width dimensions of the adsorption structure do not exceed the length and width dimensions of the scraper, and do not exceed the length and width dimensions of the brush head structure. A first channel is provided on the horizontal portion, and a second channel is provided on the vertical portion. One end of the first channel serves as an air inlet, located on the same side of the housing as the scraper and the brush head structure. The other end of the first channel communicates with one end of the second channel, and the other end of the second channel serves as an air outlet.

[0008] Beneficial effects: By defining the horizontal and vertical sections as an "L" shape, the shapes of the horizontal and vertical sections are similar to those of the casing, achieving regularity in the shape of the suction head. Specifically, when taking a cross-section perpendicular to the vertical axis, the length of the suction structure does not exceed the length of the scraper, and the width of the suction structure does not exceed the width of the scraper. Simultaneously, the length of the suction structure does not exceed the length of the brush head structure, and the width of the suction structure does not exceed the width of the brush head structure. Based on this, the suction structure avoids affecting the size of the suction head, thereby improving the reliability of the fit between the suction head size and the workpiece.

[0009] In one alternative implementation, the area of ​​the air inlet is smaller than the area of ​​the air outlet.

[0010] Beneficial effects: By limiting the area of ​​the air inlet to be smaller than that of the air outlet, the air inlet can act as the throat of the recovery channel. Since the suction force of the drive structure remains constant, a structure similar to a Venturi tube is formed between the air inlet and the air outlet, resulting in a gas velocity at the air inlet being significantly higher than that at the air outlet. Based on this, the adsorption rate of substances at the air inlet can be increased, thereby improving the reliability of the air inlet's complete adsorption of substances.

[0011] In one alternative implementation, the suction head includes: The driving structure is connected to the adsorption structure via a connecting pipe and is used to communicate with the air outlet so as to adsorb the substance through the air outlet and the air inlet.

[0012] Beneficial effects: By designing a drive structure, substances can be adsorbed at both the air outlet and inlet. This improves the reliability of the suction head's adsorption of substances.

[0013] In one alternative embodiment, the length of the brush head structure protruding from the opening is greater than the length of the scraper protruding from the opening.

[0014] Beneficial effects: By extending the brush head structure beyond the opening by a greater length than the scraper, the brush head structure can protrude beyond the scraper, allowing it to first brush away material from the scraper. When encountering hardened material, the scraper then removes the material from the scraper. This targeted removal of materials of different shapes improves the reliability of the suction head.

[0015] In one alternative embodiment, the scraper is detachably connected to the housing; And / or, the brush head structure is detachably connected to the housing.

[0016] Beneficial effects: By allowing the scraper and housing to be detachably connected, the brush head structure can be detachably connected to the housing. Based on this, the scraper and brush head structure can be repaired and replaced, thereby extending the lifespan of the suction head.

[0017] In one optional embodiment, the scraper protruding from the opening is configured as a raised structure, the raised structure being a cuboid, and the corner of the raised structure near the brush head structure and not connected to the brush head structure being arc-shaped, so that the corner of the raised structure near the adsorption structure and not connected to the adsorption structure is a sharp structure, the sharp structure being used to scrape off the substance.

[0018] Beneficial effects: By setting sharp structures on the scraper, the sharpness of the scraper can be improved, enabling the sharp structures to specifically scrape away the hardened dust, thereby improving the reliability and comprehensiveness of the material removal process.

[0019] In one optional embodiment, the space occupied by the housing, the scraper, the brush head structure, and the adsorption structure is 146mm × 58.13mm × 48.03mm.

[0020] In one alternative embodiment, the surface of the adsorption structure is provided with recesses for gripping operations.

[0021] Beneficial effects: By defining the surface of the suction structure with recesses for gripping, the user can easily find the correct hand position for holding the suction head, thus improving its ease of use.

[0022] Secondly, this utility model also provides a wind turbine generator set, comprising: Yaw brake disc; The suction head described above is used when the yaw brake disc needs cleaning. The suction head is placed on the surface of the yaw brake disc so that the scraper and the brush head structure can clean the material on the yaw brake disc, and the material is collected and recycled through the adsorption structure.

[0023] Beneficial effects: Since the wind turbine generator set includes a suction head, it has the same effect as the suction head, so it will not be elaborated here. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the suction head in this embodiment; Figure 2 for Figure 1 The front view of the suction head is shown; Figure 3 for Figure 2 A schematic diagram of the structure of AA.

[0026] Explanation of reference numerals in the attached figures: 1. Shell; 101. Receiving cavity; 2. Scraper; 201. Sharp structure; 3. Adsorption structure; 301. Air inlet; 302. Air outlet; 303. Horizontal section; 304. Vertical section; 305. Transition Section. Detailed Implementation

[0027] 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 only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] The following is combined Figures 1 to 3 The following describes embodiments of the present invention.

[0029] According to an embodiment of the present invention, in one aspect, a suction head is provided, comprising: The housing 1 includes a receiving cavity 101, and an opening is provided on one side of the housing 1 so that the receiving cavity 101 communicates with the outside through the opening; The scraper 2 has one end disposed in the receiving cavity 101 through an opening and connected to the housing 1. The other end of the scraper 2 protrudes from the opening and is used to scrape off the material that has hardened on the workpiece. The brush head structure has one end located in the receiving cavity 101 through an opening and connected to the housing 1. The other end of the brush head structure protrudes from the opening and is located on one side of the scraper 2. It is used to clean the material on the workpiece to be scraped. The adsorption structure 3 is connected to the housing 1 and is located on the same side of the housing 1 as the scraper 2 and the brush head structure. The adsorption structure 3 is provided with a recovery channel. The two ends of the recovery channel are used as an air inlet 301 and an air outlet 302 to communicate with the outside. The air inlet 301 is located on the other side of the scraper 2 or on the side of the brush head structure away from the scraper 2, so that the substance is adsorbed through the air inlet 301 and collected through the air outlet 302. When the air inlet 301 is located on the other side of the scraper 2, the external force drives the suction head to move along the direction from the brush head structure to the scraper 2. When the air inlet 301 is located on the side of the brush head structure away from the scraper 2, the external force drives the suction head to move along the direction from the scraper 2 to the brush head structure.

[0030] In this embodiment of the suction head, by providing a scraper 2, a brush head structure, and an adsorption structure 3, the scraper 2 and the brush head structure can not only brush away the material on the surface of the part to be scraped, but also scrape away the material that has adhered to the part, thereby improving the completeness of cleaning the surface of the part to be scraped. During this process, the adsorption structure 3 can adsorb the material, preventing the material from spreading to the outside and affecting the user's health. Furthermore, by limiting the scraper 2, the brush head structure, and the adsorption structure 3 to be located on the same side of the housing 1, the scraper 2 and the brush head structure can simultaneously scrape the part to be scraped, thereby improving the ease of use of the suction head. Furthermore, by limiting the air inlet 301 to be located on the other side of the scraper 2, external force drives the suction head to move in the direction from the brush head structure to the scraper 2; when the air inlet 301 is located on the side of the brush head structure away from the scraper 2, external force drives the suction head to move in the direction from the scraper 2 to the brush head structure. Based on this, the material scraped off by the scraper 2 and brush head structure can be placed directly near the air inlet 301 of the adsorption structure 3, so that the adsorption structure 3 can directly adsorb the scraped material, thereby achieving the technical effect of improving the reliability of material cleaning.

[0031] Compared to vacuum cleaners in related technologies, the negative pressure intensity of the air inlet 301 of the suction head in this embodiment is increased by 260%, and the scraper 2 and brush head structure can effectively remove the corner and groove areas of the workpiece to be scraped. At the same time, the single operation time can be shortened from 50 minutes to 23 minutes, and the cleaning efficiency can be increased to 54%.

[0032] In this embodiment, the object to be scraped is a yaw brake disc, and the material consists of metal shavings, lubricating oil carbonization products, and environmental dust. Of course, in other embodiments, the types of objects to be scraped and the materials may be adjusted depending on the application scenario of the suction head.

[0033] In this embodiment, the brush head structure is a 2.5-inch ordinary paint brush, which is readily available and inexpensive, thus improving the ease of brush head manufacturing and achieving the technical effect of reducing brush head manufacturing costs.

[0034] Of course, in other embodiments, the specific type of brush head structure may be adjusted depending on the design of the suction head.

[0035] Furthermore, preferably, during the operation of the scraper 2 and the brush head structure, the adsorption structure 3 is always in working condition so that the material can be collected in a timely manner.

[0036] Of course, in other embodiments, the working order of the scraper 2, brush head structure, and adsorption structure 3 can be adjusted depending on the design of the suction head. For example, scraping and brushing can be performed first, followed by adsorption.

[0037] In addition, combined Figure 3As shown, in this embodiment, the part to be scraped is located at... Figure 3 The left side of the suction head, along the direction from the brush head structure to the scraper 2, is... Figure 3 As shown, the direction from bottom to top, along scraper 2 to brush head structure, is... Figure 3 As shown from top to bottom.

[0038] Of course, in other embodiments, the direction of use of the suction head may be adjusted according to the actual situation.

[0039] Furthermore, in this embodiment, the suction head includes: The drive structure, connected to the adsorption structure 3 via a connecting pipe, is used to communicate with the air outlet 302, so as to perform adsorption operations on substances through the air outlet 302 and the air inlet 301. Based on this, the technical effect of improving the reliability of the suction head in adsorbing substances can be achieved.

[0040] In this embodiment, the driving structure is a negative pressure fan. Of course, in other embodiments, the type of driving structure can be adjusted. For example, a miniature negative pressure pump or a vacuum cleaner could be used, with the suction head integrated as part of the vacuum cleaner.

[0041] Of course, in other embodiments, the type of driving structure may be adjusted depending on the design of the suction head. Alternatively, no driving structure may be provided, all of which are within the scope of protection of this embodiment. Or, no connecting tube may be provided, and the driving structure may be directly connected to the adsorption structure 3.

[0042] In addition, combined Figure 3 As shown, in this embodiment, the air inlet 301 is located on the other side of the scraper 2. The adsorption structure 3 includes a horizontal part 303 and a vertical part 304, which form an "L" shape. The horizontal part 303 is located between the vertical part 304 and the scraper 2, so that a cross-section is made along the direction perpendicular to the axis of the vertical part 304. The length and width dimensions of the adsorption structure 3 do not exceed the length and width dimensions of the scraper 2, and do not exceed the length and width dimensions of the brush head structure. A first channel is provided on the horizontal part 303, and a second channel is provided on the vertical part 304. One end of the first channel serves as the air inlet 301, located on the same side of the housing 1 as the scraper 2 and the brush head structure. The other end of the first channel is connected to one end of the second channel, and the other end of the second channel serves as the air outlet 302. The axial direction of the vertical part 304 is... Figure 2 The vertical direction is shown.

[0043] By defining the horizontal portion 303 and the vertical portion 304 as an "L" shape, the shapes of the horizontal portion 303 and the vertical portion 304 are similar to the shape of the housing 1, achieving regularity in the shape of the suction head. Specifically, when taking a cross-section perpendicular to the axis of the vertical portion 304, the length of the suction structure 3 does not exceed the length of the scraper 2, and the width of the suction structure 3 does not exceed the width of the scraper 2. Simultaneously, the length of the suction structure 3 does not exceed the length of the brush head structure, and the width of the suction structure 3 does not exceed the width of the brush head structure. Based on this, the suction structure 3 avoids affecting the size of the suction head, thereby achieving the technical effect of improving the reliability of the fit between the suction head size and the workpiece to be scraped.

[0044] Furthermore, the area of ​​the air inlet 301 is smaller than that of the air outlet 302, allowing the air inlet 301 to function as the throat of the recovery channel. Since the suction force of the drive structure remains constant, a structure resembling a Venturi tube is formed between the air inlet 301 and the air outlet 302, resulting in a gas velocity at the air inlet 301 that is significantly higher than that at the air outlet 302. Based on this, the adsorption rate of substances by the air inlet 301 can be increased, thereby achieving the technical effect of improving the reliability of the complete adsorption of substances by the air inlet 301.

[0045] Of course, in other embodiments, adjustments to the shape of the adsorption structure 3 are all within the protection scope of this utility model.

[0046] Alternatively, the relationship between the area of ​​the air inlet 301 and the area of ​​the air outlet 302 can be adjusted.

[0047] In addition, combined Figure 1 As shown, in this embodiment, the scraper 2 protruding from the opening is a raised structure. The raised structure is a cuboid, and the corner of the raised structure that is close to the brush head structure and not connected to the brush head structure is set as an arc, so that the corner of the raised structure that is close to the adsorption structure 3 and not connected to the adsorption structure 3 is a sharp structure 201. The sharp structure 201 is used to scrape off the substance.

[0048] By setting a sharp structure 201 on the scraper 2, the sharpness of the scraper 2 can be improved, enabling the sharp structure 201 to specifically scrape away the clumps of dust, thereby improving the reliability and comprehensiveness of the material removal process.

[0049] As an alternative implementation, the scraper 2 may not have a corner position to allow the protruding structure to approach the adsorption structure 3, and the corner position that is not connected to the adsorption structure 3 may be a sharp structure 201, all of which are within the protection scope of this utility model. Alternatively, the position of the sharp structure 201 may be adjusted.

[0050] Of course, in other embodiments, the structure of the scraper 2 is adjusted according to the design of the suction head.

[0051] In other embodiments, the shape of the protruding structure is adjusted depending on the design of the suction head.

[0052] In addition, combined Figure 1 As shown, in this embodiment, the shell 1 and the receiving cavity 101 are cuboids, the horizontal part 303 and its first channel are cuboids, and the vertical part 304 and its second channel are cylinders. For example, the outer diameter of the cylinder is 38.08 mm and the inner diameter is 34 mm. The outer diameter of the cylinder is equal to the width of the cuboid.

[0053] Furthermore, combined Figure 1 and Figure 3 As shown, in this embodiment, the adsorption structure 3 includes a transition portion 305 disposed between the horizontal portion 303 and the vertical portion 304. The transition portion 305 is provided with a third channel and is frustoconical in shape. The transition portion 305 includes a first end face and a second end face. The shape of the first end face is the same as that of the vertical portion 304, and the dimensions of the first end face are the same as those of the vertical portion 304. The first end face is connected to the vertical portion 304 to enable communication between the third channel and the second channel. The shape of the second end face is the same as that of the horizontal portion 303, and the dimensions of the second end face are the same as those of the horizontal portion 303. The second end face is connected to the horizontal portion 303 to enable communication between the third channel and the first channel. That is, the recovery channel includes a first channel, a second channel, and a third channel.

[0054] Based on this, the material enters the third channel through the air inlet 301, making its movement speed in the third channel lower than that in the first channel. This allows the material to slowly enter the second channel, preventing the second and third channels from being too small and affecting their unobstructed flow, thus improving the reliability of the suction head. Meanwhile, the airflow velocity in the first channel is faster, so it will not become clogged, further improving the reliability of the suction head.

[0055] As an alternative implementation, the shapes of the housing 1, the receiving cavity 101, the horizontal part 303, the first channel, the vertical part 304, and the second channel can be adjusted, and the dimensions between the outer diameter and inner diameter of the cylinder and the width of the cuboid can be adjusted.

[0056] Of course, in other embodiments, the specific structure of the adsorption structure 3 can be adjusted according to the design of the suction head. For example, the adsorption structure 3 may not include the transition part 305. Alternatively, the shape of the transition part 305, the size of the first end face and the size of the vertical part 304, the shape of the first end face and the shape of the vertical part 304, the size of the second end face and the size of the horizontal part 303, and the shape of the second end face and the shape of the horizontal part 303 may be adjusted according to the actual situation. For example, the size of the first end face and the size of the vertical part 304 may be different, and the size of the second end face and the size of the horizontal part 303 may be different. All of these are within the protection scope of this utility model.

[0057] In addition, combined Figure 3 As shown, the length of the brush head structure protruding from the opening is greater than the length of the scraper 2 protruding from the opening. Specifically, the left end of the brush head structure extends beyond the left end of the scraper 2. For example, if the scraper 2 protrudes 5mm from the opening, the length of the brush head structure protruding from the opening is greater than 5mm.

[0058] Based on this, the brush head structure can protrude from the scraper 2, so that the material on the scraper is brushed off first by the brush head structure. When encountering hardened material, the material on the scraper is then scraped off by the scraper 2. This allows for targeted removal of materials of different shapes, thereby improving the technical effect of improving the reliability of the suction head.

[0059] As an alternative implementation, the length of the brush head structure protruding from the opening may not be greater than the length of the scraper 2 protruding from the opening, all of which are within the protection scope of this utility model.

[0060] Furthermore, preferably in this embodiment, the scraper 2 is detachably connected to the housing 1, and the brush head structure is detachably connected to the housing 1. Based on this, the scraper 2 and the brush head structure can be repaired and replaced, thereby achieving the technical effect of extending the service life of the suction head.

[0061] Both the scraper 2 and the housing 1 are threaded, and are connected by bolts to the threads on both the scraper 2 and the housing 1, thus achieving a detachable connection between the scraper 2 and the housing 1. The size of the brush head structure is slightly larger than the size of the opening, allowing the brush head structure to be placed within the opening and also to be positioned relative to the housing 1 through a snap-fit ​​connection between the opening and the brush head structure. This improves the reliability of the position between the brush head structure and the housing 1.

[0062] Of course, in other embodiments, depending on the design of the suction head, the scraper 2 and the housing 1 may be connected by a snap-fit, and the brush head structure and the housing 1 may be connected by a threaded connection or a snap-fit ​​connection, all of which are within the protection scope of this utility model. Among them, the snap-fit ​​connection is a mature technology and will not be limited in detail here.

[0063] As an alternative implementation, it may be that only the scraper 2 and the housing 1 are detachably connected, or only the brush head structure and the housing 1 are detachably connected, both of which are within the protection scope of this utility model.

[0064] In other embodiments, depending on the design of the suction head, the scraper 2 and the housing 1 may be fixedly connected, as may the brush head structure and the housing 1. Compared to other embodiments, the life cycle cost of the suction head in this embodiment is reduced by 68%.

[0065] Furthermore, in this embodiment, the space occupied by the housing 1, scraper 2 structure, brush head structure, and suction structure 3 is 146mm × 58.13mm × 48.03mm, that is, 46mm in length, 58.13mm in width, and 48.03mm in height. Based on this, the width of the suction head in this embodiment is less than 35cm in related technologies, allowing the suction head to reach the yaw brake disc for targeted cleaning, thereby improving the reliability of the suction head.

[0066] Of course, in other embodiments, the size of the suction head can be adjusted according to the different designs of the suction head, as long as the width of the suction head is less than 35cm.

[0067] In addition, in this embodiment, the surface of the adsorption structure 3 is provided with a recess for gripping. This makes it easier for the user to find the correct hand position for the suction head, thereby improving the ease of use of the suction head.

[0068] Of course, in other embodiments, depending on the design of the suction head, the surface of the adsorption structure 3 may not have any recesses, all of which are within the protection scope of this utility model.

[0069] Furthermore, in this embodiment, the suction head is manufactured using a 3D (three-dimensional) printing process and selective laser sintering (SLS) technology. It is formed by combining nylon 12 with a certain proportion of carbon fiber reinforcement material to create PA12-CF. The suction head thickness is set to 0.1 mm, and the temperature during the manufacturing process is controlled at 80±5℃. The specific proportion of carbon fiber reinforcement material is not limited.

[0070] Based on this, the suction head can be used in working spaces of various sizes of yaw brake discs, thereby improving the ease of use of the suction head.

[0071] Of course, in other embodiments, the molding process of the suction head is adjusted according to its design. For example, it can be designed for injection molding, in which the mold temperature is maintained at 110°C, the injection pressure is 80MPa, the holding time is 30s, and it is made of glass fiber reinforced polyetheretherketone material. Alternatively, the material, thickness, and manufacturing temperature of the suction head can be adjusted.

[0072] In addition, the specific design process of the suction head in this embodiment is as follows: First, the suction head was designed for lightweighting using ANSYS Workbench. Second, the recovery channel was ground and polished using vibratory polishing. Next, a pressure test was conducted by introducing 0.2 MPa compressed air into the outlet 302 using a drive structure to ensure that the suction head's leakage rate was ≤0.5% / min.

[0073] Of course, in other embodiments, the specific design process of the suction head is adjusted according to the different designs of the suction head. For example, the software for lightweight design, the polishing method, the pressure of the gas introduced for the pressure holding test, and the leakage rate of the suction head are all adjusted.

[0074] Alternatively, the recycling channel may not be ground or polished.

[0075] According to an embodiment of the present invention, another aspect provides a wind turbine generator set, comprising: Yaw brake disc; The suction head in this embodiment is used when the yaw brake disc needs cleaning. The suction head is placed on the surface of the yaw brake disc so that the scraper 2 and brush head structure can clean the material on the yaw brake disc. The material is collected and recycled through the adsorption structure 3.

[0076] The suction head is compatible with yaw brake discs in all wind turbine generator sets ranging from 1.5MW to 8MW, enabling complete cleaning of all yaw brake discs.

[0077] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A suction head, characterized in that, include: The housing (1) includes a receiving cavity (101), and an opening is provided on one side of the housing (1) so that the receiving cavity (101) communicates with the outside through the opening; The scraper (2) has one end located in the receiving cavity (101) through the opening and is connected to the housing (1). The other end of the scraper (2) protrudes from the opening and is used to scrape off the material that has hardened on the workpiece. The brush head structure has one end located in the receiving cavity (101) through the opening and connected to the housing (1). The other end of the brush head structure protrudes from the opening and is located on one side of the scraper (2) for cleaning the substance on the workpiece to be scraped. The adsorption structure (3) is connected to the housing (1) and is located on the same side of the housing (1) as the scraper (2) and the brush head structure. The adsorption structure (3) is provided with a recycling channel. The two ends of the recycling channel are used as an air inlet (301) and an air outlet (302) for communicating with the outside. The air inlet (301) is located on the other side of the scraper (2) or on the side of the brush head structure away from the scraper (2) so that the substance can be adsorbed through the air inlet (301) and collected through the air outlet (302). When the air inlet (301) is located on the other side of the scraper (2), the external force drives the suction head to move along the direction from the brush head structure to the scraper (2). When the air inlet (301) is located on the side of the brush head structure away from the scraper (2), the external force drives the suction head to move along the direction from the scraper (2) to the brush head structure.

2. The suction head according to claim 1, characterized in that, The air inlet (301) is located on the other side of the scraper (2). The adsorption structure (3) includes a horizontal part (303) and a vertical part (304). The horizontal part (303) and the vertical part (304) form an "L" shape. The horizontal part (303) is located between the vertical part (304) and the scraper (2) so that a cross section is made along the axis perpendicular to the vertical part (304). The length and width of the adsorption structure (3) do not exceed the length and width of the scraper (2) and do not exceed the length and width of the brush head structure. A first channel is provided on the horizontal part (303), and a second channel is provided on the vertical part (304). One end of the first channel serves as the air inlet (301) and is located on the same side of the housing (1) as the scraper (2) and the brush head structure. The other end of the first channel is connected to one end of the second channel, and the other end of the second channel serves as the air outlet (302).

3. The suction head according to claim 2, characterized in that, The area of ​​the air inlet (301) is smaller than the area of ​​the air outlet (302).

4. The suction head according to any one of claims 1-3, characterized in that, The suction head includes: The driving structure is connected to the adsorption structure (3) via a connecting pipe and is used to communicate with the air outlet (302) so as to adsorb the substance through the air outlet (302) and the air inlet (301).

5. The suction head according to any one of claims 1-3, characterized in that, The length of the brush head structure protruding from the opening is greater than the length of the scraper (2) protruding from the opening.

6. The suction head according to any one of claims 1-3, characterized in that, The scraper (2) is detachably connected to the housing (1); And / or, the brush head structure is detachably connected to the housing (1).

7. The suction head according to any one of claims 1-3, characterized in that, The scraper (2) protruding from the opening is configured as a raised structure. The raised structure is a cuboid, and the corner of the raised structure that is close to the brush head structure and not connected to the brush head structure is set as an arc, so that the corner of the raised structure that is close to the adsorption structure (3) and not connected to the adsorption structure (3) is a sharp structure (201). The sharp structure (201) is used to scrape off the substance.

8. The suction head according to any one of claims 1-3, characterized in that, The space occupied by the housing (1), the scraper (2), the brush head structure and the adsorption structure (3) is 146mm×58.13mm×48.03mm.

9. The suction head according to any one of claims 1-3, characterized in that, The surface of the adsorption structure (3) is provided with a recess for gripping operation.

10. A wind turbine generator set, characterized in that, include: Yaw brake disc; The suction head according to any one of claims 1-9 is used when the yaw brake disc needs to be cleaned. The suction head is placed on the surface of the yaw brake disc so that the scraper (2) and the brush head structure clean the material on the yaw brake disc, and the material is collected and recycled by the adsorption structure (3).

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