A tool kit for repairing a pitch motor

Abstract

This utility model relates to the field of motor repair technology and discloses a pitch motor repair toolbox, comprising: a hanger, on which a box frame is mounted, and a toolbox rotatably mounted on the side of the box frame; a cover is installed inside the hanger, and a lifting roller is rotatably mounted inside the cover, the shaft of the lifting roller passing through the hanger and mounting a motor, and an adjustment mechanism slidingly mounted inside the cover. This pitch motor repair toolbox solves the problem in the prior art where the storage space of toolboxes for convenient climbing during repairs is limited, allowing only a portion of the tools to be carried. Furthermore, after repair personnel climb onto the wind turbine for initial inspection, they need to climb back and forth to change repair tools according to the location of the pitch motor fault. Since large wind turbines are inherently tall, climbing back and forth severely depletes the repair personnel's energy and increases their risk.

Description

Technical Field

[0001] This utility model relates to the field of motor repair technology, specifically a pitch motor repair toolbox. Background Technology

[0002] A pitch motor is a drive device used in wind power generation. It is mainly used to adjust the angle of the wind turbine blades, thereby controlling the speed of blade rotation and the output power of the wind turbine. It is suitable for large wind turbines and is therefore commonly used in high-power wind turbines. During long-term use, pitch motors will inevitably malfunction for various reasons, so it is necessary for staff to climb to a high place for maintenance.

[0003] When repairing pitch motors, there are many possible causes of malfunction, resulting in a wide variety of tools to carry. Current technology offers limited storage space in toolboxes for easy climbing, allowing only a portion of the tools to be carried. After initial inspection upon reaching the wind turbine, repair personnel must repeatedly climb back and forth to change tools depending on the location of the pitch motor malfunction. Given the height of large wind turbines, this repeated climbing significantly depletes the repair personnel's energy and increases their risk. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a pitch motor repair toolbox, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: a pitch motor repair toolbox, comprising: a hanger, a box frame mounted on the hanger, and a toolbox rotatably mounted on the side of the box frame;

[0006] The hanger has a cover installed inside, and a lifting roller is rotatably installed inside the cover. The shaft of the lifting roller passes through the hanger and is equipped with a motor. An adjustment mechanism is slidably installed inside the cover. The outer edge of the lifting roller is rotatably connected to the structure on the adjustment mechanism. A lifting strap is held between the adjustment mechanism and the lifting roller. The top and bottom of the lifting strap pass through the cover and extend to the outside.

[0007] Preferably, the toolbox includes a box body that is rotatably disposed on the side of the box frame, a box lid that is rotatably disposed on the box body via a hinge, and a buckle installed on the side of the box body.

[0008] Preferably, the box frame includes two shelf plates, each of which is equipped with an adapter. The tool box is rotatably mounted on the shelf plate via the adapter. A through slot is provided on the shelf plate on the same side as the motor, and a groove for accommodating the motor is provided on the tool box corresponding to the through slot.

[0009] Preferably, a buckle is installed between the two shelf panels, and a buckle block is installed on the buckle. The tool boxes located on both sides of the box frame are fastened to the buckle block.

[0010] Preferably, the cover includes a housing installed inside the hanger, with guide belt housings provided at the top and bottom of the housing, one side of the housing being open, and the control mechanism being located within the open position of the housing.

[0011] Preferably, a limiting groove is provided on the inner side of the hanger, and a slide rail is installed inside the limiting groove. A slide groove is provided on the side of the control mechanism, and the slide groove is slidably inserted into the slide rail.

[0012] Preferably, the control mechanism includes a mounting plate installed on the side of the hanger, a limiting plate installed on the side of the mounting plate, a fixed rotation groove formed at the contact point between the limiting plate and the mounting plate, a screw rotatably mounted on the mounting plate, a fixed turntable integrally mounted on the screw, and the fixed turntable rotatably mounted inside the fixed rotation groove, a knob installed at the end of the screw on one side of the mounting plate, a roller frame threaded onto the end of the screw on the other side of the mounting plate, a pressure roller rotatably mounted on the roller frame, and the lifting strap clamping between the pressure roller and the lifting roller.

[0013] Preferably, the middle of the outer edge of the lifting roller is recessed and forms a plurality of roller teeth, the shape of the side of the lifting belt is adapted to the shape of the outer edge of the lifting roller, the outer edge of the lifting roller near the end overlaps with the pressure roller, and the middle of the outer edge of the pressure roller protrudes and corresponds to the recessed position of the outer edge of the lifting roller.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This pitch motor maintenance toolbox, through the installation of a hanger, control mechanism, lifting roller, and sling, utilizes the control mechanism and lifting roller to clamp the sling. When maintenance personnel climb to repair the pitch motor of large wind power equipment, they only need to carry the sling, effectively reducing the load on the personnel during climbing. After the maintenance personnel reach the repair position, one end of the sling is fixed and lowered to the ground, allowing the toolbox on the ground to be raised along the hanging sling by the rotation of the lifting roller. When the faulty part needs to be inspected and tools need to be replaced, the toolbox only needs to be controlled to rise and fall automatically along the sling, allowing the personnel on the ground to replace the tools without having to climb back and forth to carry the toolbox, thus greatly improving the safety of maintenance personnel.

[0016] 2. This pitch motor maintenance toolbox, by setting up a frame and placing toolboxes on both sides of the frame, increases the weight on both sides of the lifting frame, thereby maintaining its balance during lifting and lowering, improving the safety of lifting and lowering the toolbox, and also increasing the number of tools that can be carried at one time. After confirming the required types of tools, the required tools can be carried to the maximum extent, eliminating the need for multiple lifting operations and improving maintenance efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the unfolded structure of the toolbox of this utility model;

[0019] Figure 3 This is a schematic diagram of the box frame structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the hanger of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the control mechanism and the sliding joint of the hanger in this utility model;

[0022] Figure 6 This is a schematic diagram of the disassembled structure of the control mechanism of this utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the control mechanism and the clamping part of the lifting roller of this utility model.

[0024] In the diagram: 1. Hanger; 2. Box frame; 21. Shelf plate; 22. Adapter seat; 23. Fastener block; 24. Through groove; 25. Fastener frame; 3. Control mechanism; 31. Mounting plate; 32. Limiting plate; 33. Fixed rotation groove; 34. Screw; 35. Knob; 36. Fixed turntable; 37. Roller frame; 38. Pressure roller; 4. Tool box; 41. Box body; 42. Box lid; 43. Buckle; 5. Lifting strap; 6. Motor; 7. Cover; 71. Housing; 72. Guide belt housing; 8. Lifting roller; 9. Limiting groove; 10. Slide rail; 11. Slide groove. 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] Please see Figure 1-7A pitch motor repair toolbox includes: a hanger 1, a box frame 2 mounted on the hanger 1, and a toolbox 4 rotatably mounted on the side of the box frame 2;

[0027] The inside of the hanger 1 is a cover 7. Inside the cover 7, a lifting roller 8 is rotatably installed. The shaft of the lifting roller 8 passes through the hanger 1 and is equipped with a motor 6. Inside the cover 7, an adjustment mechanism 3 is slidably installed. The outer edge of the lifting roller 8 is rotatably connected to the structure on the adjustment mechanism 3. A lifting strap 5 is clamped between the adjustment mechanism 3 and the lifting roller 8. The top and bottom of the lifting strap 5 pass through the cover 7 and extend to the outside.

[0028] The toolbox 4 includes a box body 41 that is rotatably mounted on the side of the box frame 2. A box cover 42 is rotatably mounted on the box body 41 via a hinge. A buckle 43 is installed on the side of the box body 41. Since the space on the top of the large wind power generation equipment is limited, after the top of the sling 5 is fixed near the maintenance site, the toolbox 4 on the sling 1 can be directly unfolded on the sling 5 without having to remove the toolbox 4, which improves the convenience of tool access.

[0029] The box frame 2 includes two frame plates 21, each with an adapter 22. The tool box 4 is rotatably mounted on the frame plate 21 via the adapter 22. A through slot 24 is provided on the frame plate 21 on the same side as the motor 6, and a groove for accommodating the motor 6 is provided on the tool box 4 at the corresponding position of the through slot 24. The box frame 2 provides support for the tool box 4. The shape of the tool box 4 is designed according to the equipment required by the hanger 1 to ensure that the tool boxes 4 on both sides of the box frame 2 are kept in a balanced state.

[0030] A buckle 25 is installed between the two shelf plates 21, and a buckle block 23 is installed on the buckle 25. The tool box 4 located on both sides of the box frame 2 is fastened to the buckle block 23. The position of the buckle 25 corresponds to the position of the buckle 43 on the tool box 4. When the tool box 4 is folded up, the state of the tool box 4 can be quickly adjusted by using the engagement between the buckle 43 and the buckle block 23, while avoiding the tool box 4 from being accidentally unfolded during hoisting.

[0031] The housing 7 includes a housing 71 installed inside the hanger 1. The top and bottom of the housing 71 are provided with guide belt shells 72. One side of the housing 71 is open, and the control mechanism 3 is located in the open position of the housing 71. By setting the guide belt shell 72, the sling 5 passing through the housing 7 is guided to ensure that the hanger 1 can rise and fall stably along the sling 5 and avoid misalignment during movement.

[0032] The inner side of the hanger 1 has a limiting groove 9, and a slide rail 10 is installed inside the limiting groove 9. The side of the control mechanism 3 has a slide groove 11, which is slidably inserted into the slide rail 10. By setting the slide rail 10 and the slide groove 11 to slide, the movement direction of the control mechanism 3 is limited, so that the control mechanism 3 can only overlap with the outer edge of the lifting roller 8 along a fixed trajectory when it moves.

[0033] The control mechanism 3 includes a mounting plate 31 installed on the side of the hanger 1. A limit plate 32 is installed on the side of the mounting plate 31. A fixed rotation groove 33 is provided at the contact point between the limit plate 32 and the mounting plate 31. A screw 34 is rotatably mounted on the mounting plate 31. A fixed rotation disk 36 is integrally mounted on the screw 34 and is rotatably disposed inside the fixed rotation groove 33. A knob 35 is installed at the end of the screw 34 located on one side of the mounting plate 31. A roller frame 37 is threaded onto the other end, and a pressure roller 38 is rotatably mounted on the roller frame 37. The sling 5 is clamped between the pressure roller 38 and the lifting roller 8. When the sling 5 is inserted into the hanger 1, the knob 35 can be rotated to create a sufficient distance between the pressure roller 38 and the lifting roller 8, so that the sling 5 can be inserted between the pressure roller 38 and the lifting roller 8. Then, the knob 35 is tightened to clamp the sling 5 between the pressure roller 38 and the lifting roller 8, so that the hanger 1 can move up and down along the sling 5.

[0034] The outer edge of the lifting roller 8 is recessed in the middle and forms several roller-shaped teeth. The shape of the side of the lifting belt 5 matches the shape of the outer edge of the lifting roller 8. The outer edge of the lifting roller 8 near the end overlaps with the pressure roller 38, and the middle of the outer edge of the pressure roller 38 protrudes and corresponds to the recessed position of the outer edge of the lifting roller 8. When the control mechanism 3 is tightened, after the knob 35 is turned to a certain extent, the outer edge of the lifting roller 8 near the end overlaps with the pressure roller 38, thereby forming a gap between the protruding part of the outer edge of the pressure roller 38 and the recessed position of the outer edge of the lifting roller 8, which is just enough for the lifting belt 5 to pass through, avoiding the situation where the pressure roller 38 and the lifting roller 8 are clamped too tightly, causing the lifting belt 5 to be unable to pass through.

[0035] Working principle: When repairing large wind power equipment, the repair personnel first climb to the repair position on the large wind power equipment with the sling 5. Then, one end of the sling 5 is fixed in an easily accessible position, and the other end of the sling 5 is lowered to the ground. The ground staff first passes the lower end of the sling 5 through the hanger 1, then straightens the lower end and fixes it to the ground. After putting the tools required for repair into the tool box 4, the control mechanism 3 is tightened. Then, the motor 6 is started, and the motor 6 drives the lifting roller 8 to rotate, so that the lifting roller 8 can move up and down along the sling 5 by friction, so as to deliver the tools.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tool kit for repairing a pitch motor, the tool kit comprising: include: Hanger (1), on which a box frame (2) is installed, and a tool box (4) is rotatably mounted on the side of the box frame (2); The hanger (1) has a cover (7) installed inside. The cover (7) has a rotating lifting roller (8) inside. The shaft of the lifting roller (8) passes through the hanger (1) and is equipped with a motor (6). The cover (7) has a sliding control mechanism (3) inside. The outer edge of the lifting roller (8) is rolledly connected to the structure on the control mechanism (3). The control mechanism (3) and the lifting roller (8) are clamped together with a sling (5). The top and bottom of the sling (5) pass through the cover (7) and extend to the outside.

2. A pitch motor service kit as claimed in claim 1, wherein, The toolbox (4) includes a box body (41) that is rotatably disposed on the side of the box frame (2), a box cover (42) that is rotatably disposed on the box body (41) by means of a hinge, and a buckle (43) installed on the side of the box body (41).

3. A pitch motor service kit as claimed in claim 1, wherein, The box frame (2) includes two frame plates (21), and each of the two frame plates (21) is equipped with an adapter (22). The tool box (4) is rotatably mounted on the frame plate (21) via the adapter (22). A through slot (24) is provided on the frame plate (21) located on the same side as the motor (6), and a groove for accommodating the motor (6) is provided on the tool box (4) corresponding to the through slot (24).

4. A pitch motor repair toolbox according to claim 3, characterized in that, A buckle (25) is installed between the two shelves (21), and a buckle block (23) is installed on the buckle (25). The tool boxes (4) located on both sides of the box frame (2) are fastened to the buckle block (23).

5. A pitch motor repair toolbox according to claim 1, characterized in that, The cover (7) includes a housing (71) installed inside the hanger (1). The top and bottom of the housing (71) are provided with guide belt housings (72). One side of the housing (71) is open, and the control mechanism (3) is located in the open position of the housing (71).

6. A pitch motor repair toolbox according to claim 1, characterized in that, The inner side of the hanger (1) is provided with a limiting groove (9), and a slide rail (10) is installed inside the limiting groove (9). The side of the control mechanism (3) is provided with a slide groove (11), and the slide groove (11) is slidably inserted into the slide rail (10).

7. A pitch motor repair toolbox according to claim 1, characterized in that, The control mechanism (3) includes a mounting plate (31) installed on the side of the hanger (1). A limiting plate (32) is installed on the side of the mounting plate (31). A fixed rotation groove (33) is opened at the contact point between the limiting plate (32) and the mounting plate (31). A screw (34) is rotatably mounted on the mounting plate (31). A fixed turntable (36) is integrally mounted on the screw (34) and is rotatably mounted inside the fixed rotation groove (33). A knob (35) is installed on the end of the screw (34) located on one side of the mounting plate (31). A roller frame (37) is threaded on the end of the screw (34) located on the other side of the mounting plate (31). A pressure roller (38) is rotatably mounted on the roller frame (37). The sling (5) is clamped between the pressure roller (38) and the lifting roller (8).

8. A pitch motor repair toolbox according to claim 7, characterized in that, The middle of the outer edge of the lifting roller (8) is recessed and forms several roller teeth. The shape of the side of the lifting belt (5) is adapted to the shape of the outer edge of the lifting roller (8). The outer edge of the lifting roller (8) near the end overlaps with the pressure roller (38), and the middle of the outer edge of the pressure roller (38) protrudes and corresponds to the recessed position of the outer edge of the lifting roller (8).

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