Fixing tool for wind power gear box scraper knife polishing

Abstract

The utility model provides a fixing tool for polishing a scraper knife of a wind power gear box. The fixing tool is characterized in that bearings are mounted at the two ends of a tool cylinder in a matched manner; the part, located between the bearings at the two ends, of the tool column is provided with a platform parallel to the axis of the tool column. The scraper knife is placed on the platform and located between two threaded holes formed in the platform, the tool pressing plate is pressed on the scraper knife, the bolt penetrates through a through hole formed in the tool pressing plate and then is arranged in the threaded holes in a screwed mode, and the tool pressing plate tightly presses the scraper knife. And the bearing is supported on a tool platform on which abrasive paper is placed. According to the utility model, the originally scrapped scraper knife can be used continuously after being polished, so that the cost is effectively saved, the operation is convenient, and the universality is strong.

Description

Technical Field

[0001] The utility model relates to the field of wind power gear boxes, in particular to a fixed tool used for grinding a blade of a wind power gear box. Background Art

[0002] The gearbox in a wind turbine is a crucial mechanical component. Its primary function is to transmit the wind-driven power generated by the rotor to the generator, generating the corresponding rotational speed. Installed in windy locations such as high mountains, wilderness, beaches, and islands, the turbines are subject to erratic wind changes in direction and load, as well as strong gusts. They are constantly subjected to extreme heat and cold, as well as temperature swings. Furthermore, these environments are difficult to access, and the gearbox is housed in a confined space atop the tower. Repairs can be challenging, placing significantly higher demands on its reliability and service life than typical machinery. Severe gearbox damage requires removal from the gearbox for repair. Before repair, the gearbox must be disassembled. After disassembly, the adhesive coating on the joints between the gearbox components must be cleaned. The sealant applied to the joints ensures a tight seal. Therefore, after the gearbox is removed from the gearbox for repair, the adhesive coating on the joints must be completely cleaned and reapplied during assembly. Because the gearboxes removed from the rack have been in operation for years, the sealant on the mating surfaces has completely solidified, requiring a scraper or other tool to clean the sealant. However, after repeated use, the scraper's blade becomes blunt, seriously affecting the cleaning efficiency. To improve efficiency, a new scraper is usually required. Since the sealant on the gearbox mating surfaces is relatively hard, the scraper wears easily, requiring frequent replacement, resulting in high tool costs. Utility Model Content

[0003] The utility model provides a fixed tool for grinding a scraper blade of a wind power gear box, which aims to solve the shortcomings of the existing technology and can continue to use the scraper blade after grinding, effectively saving costs, being easy to operate and having strong versatility.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A fixed tool for grinding a scraper blade for a wind turbine gearbox, characterized by:

[0006] Bearings are installed at both ends of the tooling column;

[0007] The portion of the tooling column located between the bearings at both ends has a platform parallel to the axis of the tooling column;

[0008] The scraper is placed on the platform and located between the two threaded holes on the platform. The tooling pressure plate is pressed on the scraper. The bolts pass through the through holes on the tooling pressure plate and are screwed into the threaded holes. The tooling pressure plate presses the scraper tightly.

[0009] The bearing is supported on a tooling platform on which sandpaper is placed.

[0010] The two threaded holes are distributed symmetrically with respect to the center line of the tooling column.

[0011] The area of the tooling pressure plate is smaller than the area of the platform on the side of the tooling column.

[0012] The through hole of the tooling pressing plate is a second-order through hole including a large-diameter hole and a small-diameter hole.

[0013] The blade forms an acute angle with the tooling base.

[0014] The utility model is beneficial in that:

[0015] 1) The blade of the scraper can be sharpened by using the tooling of the present invention, which is effective and fast, without the need to replace a new scraper, thus saving tool costs;

[0016] 2) The tooling of the present invention can be used to grind blades within a certain size range, and has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is the front view of the tooling of the utility model;

[0019] Figure 2 for Figure 1 A-direction partial view;

[0020] Figure 3 for Figure 1 B-direction partial view in. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the technical solution of the present invention, the following will briefly introduce the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings without inventive work. In order to facilitate understanding of the present invention, the following will be described in more detail with reference to the drawings and specific embodiments.

[0022] It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more elements can be present in between. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more elements can be present in between. The terms "upper", "lower", "inner", "outer", "bottom", etc. used in this specification indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] like Figure 1 、 Figure 2 、 Figure 3 As shown:

[0024] The utility model provides a scraper grinding and fixing tool used for a wind power gear box.

[0025] Sandpaper for scraper grinding is placed on the tooling base 1. The tooling cylinder 2 (which can be a tooling cylinder) is the main body of the utility model. The tooling cylinder 2 is processed from a round bar. The two ends of the tooling cylinder 2 need to be processed to a certain size to form the shaft diameter 20 at both ends. The size of the shaft diameter 20 needs to form a certain match with the inner diameter of the bearing 3. A rectangular platform 21 needs to be processed on the side of the tooling cylinder 2. The platform 21 is parallel to the axis of the tooling cylinder 2. It can be seen from this view that nearly half of the cylindrical part of the tooling cylinder 2 needs to be processed. After the side of the tooling cylinder 2 is processed, two threaded holes 22 of the same specification need to be processed on the processed plane. The two threaded holes 22 are symmetrically distributed with respect to the center line of the tooling cylinder 2. After the threaded holes 22 are processed, two bearings 3 of the same model can be installed on the shaft diameters 20 at both ends of the tooling cylinder 2. The tooling pressure plate 4 is a rectangular plate with a certain thickness. The area of the tooling pressure plate 4 is slightly smaller than the platform 21 machined on the side of the tooling cylinder 2, so that there will be no interference. Two second-order through holes 40 are pre-machined on the tooling pressure plate 4. The second-order through holes 40 include a large-diameter hole 41 and a small-diameter hole 42. The hole spacing between the two second-order through holes 40 is consistent with the hole spacing between the two threaded holes 22 on the tooling cylinder 2. Place the middle of the scraper 5 to be polished on the platform 21 machined on the side of the tooling cylinder 2, with the scraper 5 located between the two threaded holes 22. Then place the pressure plate 4 on the scraper 5, and finally pass the two bolts 6 through the second-order through holes 40 and screw them into the threaded holes 22. In this way, the scraper 5 can be clamped and fixed.

[0026] After installation, the bearing 3 is supported on the tooling platform 1. The handle of the scraper 5 is held in the hand, and the blade of the scraper 5 contacts the sandpaper on the tooling platform 1. The scraper 5 is polished by rolling back and forth on the tooling platform through the bearing 3.

[0027] After the scraper 5 is clamped and fixed to the plane of the tooling cylinder 2, during grinding, the scraper 5 forms a certain acute angle C with the tooling base 1, which is conducive to grinding.

[0028] The advantages of this utility model tooling are:

[0029] 1. Simple structure, easy to process and manufacture;

[0030] 2. It has strong versatility and can be used to clamp and fix scrapers within a certain specification range, saving costs;

[0031] 3. The scraper with a blunt blade can be polished by the method of the utility model and can be used repeatedly, which effectively saves the cost of production materials.

[0032] 4. It can be operated by one person, with simple operation and high grinding efficiency.

[0033] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other. The above description of the disclosed embodiments enables professionals and technicians in this field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in this field. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fixed tool for grinding blades of wind turbine gearboxes, characterized by: Bearings are installed at both ends of the tooling column; the part of the tooling column located between the bearings at both ends has a platform parallel to the axis of the tooling column; the scraper is placed on the platform and is located between the two threaded holes opened on the platform, the tooling pressure plate is pressed on the scraper, the bolt passes through the through hole opened on the tooling pressure plate and is screwed into the threaded hole, and the tooling pressure plate presses the scraper; the bearing is supported on the tooling platform with sandpaper placed on it.

2. The fixed tool for grinding a blade of a wind turbine gearbox according to claim 1, characterized in that: The two threaded holes are distributed symmetrically with respect to the center line of the tooling column.

3. The fixed tool for grinding a blade of a wind turbine gearbox according to claim 1, characterized in that: The area of the tooling pressure plate is smaller than the area of the platform on the side of the tooling column.

4. The fixed tool for grinding a blade of a wind turbine gearbox according to claim 1, characterized in that: The through hole of the tooling pressing plate is a second-order through hole including a large-diameter hole and a small-diameter hole.

5. The fixed tool for grinding a blade of a wind turbine gearbox according to claim 1, characterized in that: The blade forms an acute angle with the tooling base.

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