A high-speed shaft protective cover for wind turbines

Abstract

This utility model relates to the field of wind turbine technology, and in particular to a high-speed shaft protective cover for wind turbines. It includes a lower shell, which is horizontally positioned. An end plate is located at the top right end of the lower shell, and an upper shell, which mates with the end plate, is mounted on the top of the lower shell. A shaft is inserted through the lower shell, upper shell, and end plate. A support plate is horizontally positioned below the lower shell. A fixing component is mounted at the top left end of the support plate, and a movable groove is formed at the top right end of the support plate. A movable block, capable of moving left and right at a certain angle, is located within the movable groove. A hinge, hinged to the fixing component, is mounted at the bottom left end of the lower shell, and a fixed frame is mounted at the bottom right end of the lower shell. The top of the movable block is slidably mounted within the fixed frame. This utility model allows for appropriate adjustment of the overall height and angle of the protective cover according to the state after the shaft is connected, enabling the protective cover to be more accurately and stably fitted onto the outside of the shaft, thus providing effective protection for the shaft.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine technology, and in particular to a high-speed shaft protective cover for wind turbines. Background Technology

[0002] During the operation of wind turbines, the high-speed shaft is a key component for transmitting power, and its safety protection is of paramount importance. The high-speed shaft protective cover is an important device that protects the high-speed shaft from external interference (such as dust and impurities) and prevents accidental contact by personnel. Its structural rationality and usability directly affect the operational safety and maintenance convenience of wind turbines.

[0003] In the existing technology, the high-speed shaft protective cover of wind turbine still has certain shortcomings in use. Most protective covers have a fixed structure and cannot be flexibly adjusted according to the actual installation angle of the high-speed shaft. Because the high-speed shaft will more or less tilt slightly after installation (within the allowable range of slight deviation), the protective cover is difficult to fit properly on the outside of the shaft, and gaps are likely to occur, resulting in a decrease in the protective effect. In addition, the height adjustment capability of the protective cover is limited, making it difficult to adapt to the height requirements of different models of wind turbine or different installation scenarios, resulting in poor installation adaptability. Therefore, this application proposes a high-speed shaft protective cover for wind turbine. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a high-speed shaft protective cover for wind turbines to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides a high-speed shaft protective cover for wind turbine generators, comprising: The lower shell is horizontally positioned. End plate, installed on the top right end of the lower shell; The upper shell is installed on top of the lower shell and mates with the end plate; The shaft is inserted through the lower shell, upper shell, and end plate from both sides. The support plate is placed horizontally below the lower shell. A fixing part is installed on the top left end of the support plate, and a moving groove is opened on the top right end of the support plate. A moving block that can move left and right at a certain tilt angle is set in the moving groove. A hinge is installed at the bottom left end of the lower shell, which is hinged to the fixing component. A fixing frame is installed at the bottom right end of the lower shell, and the top of the moving block is slidably installed in the fixing frame. The support adjustment assembly consists of two sets, which are respectively installed at both ends of the bottom of the support plate.

[0006] Optionally, a first sliding groove with an inclination angle of 1° is provided on both sides of the inner wall of the moving groove, a second sliding groove is provided on both sides of the inner wall of the fixed frame, a first slider located in the corresponding first sliding groove is fixedly installed on the bottom of both sides of the moving block, a second slider located in the corresponding second sliding groove is fixedly installed on the top of both sides of the moving block, a scale mark is provided on the top of the support plate and at the edge of the moving groove, and a pointer mark pointing to the scale mark is provided on one side of the moving block.

[0007] Optionally, the movable block has a screw hole, and the right end of the support plate is rotatably inserted with a screw extending into the movable groove. The screw is set to have the same inclination as the first sliding groove. The inner end of the movable groove has a groove, and a bearing is fixedly installed in the groove. One end of the screw located in the movable groove is fixedly connected to the inner ring wall of the bearing.

[0008] Optionally, the right end of the support plate is provided with an annular toothed groove, the right end of the screw is fixedly installed with an anti-detachment plate, and the right end of the screw is provided with a square groove. A rotating cap is fitted on the right end of the screw, the left end of the rotating cap is provided with teeth, and the toothed end of the rotating cap can be inserted into the annular toothed groove and engaged with it. The inner end of the rotating cap is fixedly connected with a square rod inserted into the square groove, and a second spring sleeved on the outside of the screw is fixedly connected between the inner end of the rotating cap and the anti-detachment plate.

[0009] Optionally, the support adjustment assembly includes a sleeve, a support rod, an arc-shaped plate, and a threaded ring. The support rod is vertically fixedly installed at the bottom of the support plate. The sleeve is fitted over the support rod, and a semi-circular notch is opened at the top of the sleeve. The arc-shaped plate is fitted over the support rod and abuts against the notch. A baffle flush with the notch is fixedly installed on the outer wall of the sleeve. A base is fixedly installed at the bottom of the sleeve. The threaded ring is threaded onto the joint between the sleeve and the arc-shaped plate and abuts against the top of the baffle. Multiple positioning grooves are equidistantly opened on the outer wall of the support rod from top to bottom. Two positioning blocks that can engage with the positioning grooves are fixedly installed on the inner wall of the arc-shaped plate.

[0010] Optionally, a first slot is provided at each of the two corners at the top right end of the lower shell, and a first rod is fixedly installed at both ends of the bottom of the end plate and inserted into the corresponding first slot. Two second slots are provided on the side of the end plate that connects to the upper shell. Two second rods that can be inserted into the corresponding second slots are fixedly installed at the right end of the upper shell. Inverted T-shaped guide grooves extending to the left end are provided on both sides of the top of the lower shell. A guide plate that can be slidably installed in the guide groove is fixedly installed at the bottom of the upper shell. Locking components are provided between the two sides of the right end of the lower shell and the end plate. Two sets of limiting components located on the left side of the upper shell are provided on the left side of the lower shell.

[0011] Optionally, the locking assembly includes a lower fixing block, an upper fixing block, and bolts. The lower fixing block is fixedly installed on the side of the right end of the lower housing, the upper fixing block is fixedly installed on the sides of both ends of the end plate, and the bolts are inserted through and connected between the corresponding lower fixing block and upper fixing block.

[0012] Optionally, the limiting component includes a limiting frame, a limiting plate, and a first spring. The limiting frame is fixedly installed on the left end of the lower shell, and the top and right sides of the limiting frame are provided with plate grooves. The limiting plate is movably inserted into the plate grooves, and the top end of the limiting plate extends out of the plate grooves and abuts against the left side of the upper shell. The first spring is fixedly connected between the bottom end of the limiting plate and the plate grooves.

[0013] The beneficial effects of this utility model are: Through the hinge structure between the left end of the lower shell and the support plate, and the sliding connection between the right end fixed frame and the moving block, the moving block can move precisely in the moving groove along the first sliding groove inclined at 1° (with the guidance of the first slider and the second slider), and the angle can be visually adjusted through the scale marks and pointer marks. This effectively solves the problem that the existing protective cover cannot adapt to the installation angle deviation of the high-speed shaft, can fit tightly to the shaft, avoid gaps, and significantly improve the protection effect.

[0014] In the support adjustment assembly, the cooperation between the support rod and the sleeve enables height adjustment. The positioning block of the arc plate engages with the positioning groove of the support rod to form a preliminary fixation. Then, the connection between the sleeve and the arc plate is locked by the threaded ring to ensure reliable height fixation. This structure can flexibly adapt to the height requirements of different models of wind turbines or different installation scenarios, solving the problem of limited height adjustment capability of existing protective covers.

[0015] The lower shell and the upper shell are slidably connected through an inverted T-shaped guide groove and a guide plate. The end plate is quickly positioned with the lower shell and the upper shell through the first slot and the first rod, and the second slot and the second rod, respectively. The locking component can complete the fixed connection between the end plate and the lower shell, while the limiting component can make the upper shell and the lower shell stably connected together. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection between the upper shell, lower shell and end plate of this utility model; Figure 3 This is a schematic diagram of the limiting component of this utility model; Figure 4 This is a schematic diagram of the structure of the support plate and the support adjustment assembly of this utility model; Figure 5 This is a cross-sectional structural diagram showing the connection between the fixed frame, the movable block, and the support plate of this utility model. Figure 6 This is a schematic diagram of the screw and rotating cap of this utility model; Figure 7 This is an exploded view of the support and adjustment component of this utility model; In the picture: 11. Lower shell; 12. End plate; 13. Upper shell; 14. Shaft; 15. Locking assembly; 16. Limiting assembly; 17. Guide groove; 18. Guide plate; 111. First slot; 121. First insertion rod; 122. Second slot; 131. Second insertion rod; 151. Lower fixing block; 152. Upper fixing block; 153. Bolt; 161. Limiting frame; 162. Limiting plate; 163. First spring; 2. Support plate; 21. Fixing component; 22. Hinge component; 23. Moving slot; 24. Moving block; 25. Fixing frame; 26. Screw; 27. Rotating cap; 28. Bearing; 201. Annular toothed groove; 231. First slide groove; 241. First slider; 242. Second slider; 251. Second slide groove; 261. Anti-detachment plate; 262. Square groove; 271. Square rod; 272. Second spring; 3. Support and adjustment assembly; 31. Sleeve; 32. Support rod; 33. Arc plate; 34. Threaded ring; 35. Baffle; 36. Base; 311. Notch; 321. Positioning groove; 331. Positioning block. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] Please see Figures 1-7This utility model provides a technical solution: a high-speed shaft protective cover for a wind turbine, including a lower shell 11, which is horizontally arranged. An end plate 12 is provided on the top right end of the lower shell 11, and an upper shell 13 is installed on the top of the lower shell 11, which is connected to the end plate 12. A shaft 14 is inserted through the lower shell 11, the upper shell 13, and the end plate 12. A support plate 2 is horizontally arranged below the lower shell 11. A fixing member 21 is installed on the top left end of the support plate 2, and a moving groove 23 is opened on the top right end of the support plate 2. A moving block 24 capable of moving left and right at a certain tilt angle is provided in the moving groove 23. A hinge 22, which is hinged to the fixing member 21, is installed at the bottom left end of the lower shell 11. A fixing frame 25 is installed at the bottom right end of the lower shell 11. The top of the moving block 24 is slidably installed in the fixing frame 25. Support adjustment components 3 are installed at both ends of the bottom of the support plate 2. Through the hinge structure between the lower shell 11 and the left end of the support plate 2, the sliding cooperation between the right end fixing frame 25 and the moving block 24, and the bottom support adjustment components 3, a basic structure that can realize angle and height adjustment is constructed. This provides an overall framework for the flexible adaptation and stable support of the protective cover, and solves the problems of fixed structure and poor adaptability of traditional protective covers.

[0019] like Figure 1 and Figure 4 As shown, the inner walls of the movable groove 23 are provided with first sliding grooves 231 with an inclination angle of 1° on both sides, and the inner walls of the fixed frame 25 are provided with second sliding grooves 251 on both sides. The bottom of both sides of the movable block 24 are fixedly installed with first sliders 241 located in the corresponding first sliding grooves 231, and the top of both sides of the movable block 24 are fixedly installed with second sliders 242 located in the corresponding second sliding grooves 251. A scale mark is provided on the top of the support plate 2 and at the edge of the movable groove 23, and a pointer mark pointing to the scale mark is provided on one side of the movable block 24. The first sliding groove 231 is inclined at 1°. 1. The second slide 251 in a horizontal state, in conjunction with the guide of the first slider 241 and the second slider 242, and combined with the scale marks and pointer marks, realizes the precise and visual angle adjustment of the moving block 24. By the slight height difference that occurs when the moving block 24 moves left and right, the height of the right end of the lower shell 11 is changed, so that the hinge 22 at its left end flips around the fixed part 21, thereby realizing the angle adjustment of the lower shell 11. This ensures that the lower shell 11 can be flexibly adjusted according to the angle deviation of the high-speed shaft, improves the fit between the protective cover and the shaft 14, and avoids the protective failure caused by the gap.

[0020] like Figure 5 and Figure 6As shown, the movable block 24 has a screw hole, and the right end of the support plate 2 is rotatably inserted with a screw 26 extending into the movable groove 23. The screw 26 is set with the same inclination as the first sliding groove 231. The inner end of the movable groove 23 has a groove, and a bearing 28 is fixedly installed in the groove. One end of the screw 26 located in the movable groove 23 is fixedly connected to the inner ring wall of the bearing 28. Through the threaded engagement between the screw 26 and the screw hole on the side of the movable block 24, and in conjunction with the bearing 28, the screw 26 is ensured to rotate smoothly, realizing the stable drive and precise movement of the movable block 24. This ensures that the angle adjustment process is controllable and reliable, avoids jamming or offset during adjustment, and improves the adjustment accuracy.

[0021] like Figure 5 and Figure 6 As shown, the right end of the support plate 2 has an annular toothed groove 201, the right end of the screw 26 is fixedly equipped with an anti-detachment plate 261, and the right end of the screw 26 has a square groove 262. A rotating cap 27 is sleeved on the right end of the screw 26. The left end of the rotating cap 27 is provided with teeth, and the toothed end of the rotating cap 27 can be inserted into the annular toothed groove 201 and engaged with it. The inner end of the rotating cap 27 is fixedly connected to a square rod 271 inserted into the square groove 262, and a second spring 272 sleeved on the outside of the screw 26 is fixedly connected between the inner end of the rotating cap 27 and the anti-detachment plate 261. By utilizing the engagement of the teeth of the rotating cap 27 with the annular toothed groove 201, the transmission of the square rod 271 with the square groove 262, and the pre-tightening of the second spring 272, the screw 26 can be conveniently rotated and adjusted, and the screw 26 can be locked after adjustment to prevent loosening caused by the vibration of the wind turbine and ensure the structural stability after angle adjustment.

[0022] like Figure 1 and Figure 7 As shown, the support adjustment assembly 3 includes a sleeve 31, a support rod 32, an arc-shaped plate 33, and a threaded ring 34. The support rod 32 is vertically fixedly installed at the bottom of the support plate 2. The sleeve 31 is fitted over the support rod 32, and a semi-circular arc-shaped notch 311 is opened at the top of the sleeve 31. The arc-shaped plate 33 is fitted over the support rod 32 and abuts against the notch 311. A baffle 35 flush with the notch 311 is fixedly installed on the outer wall of the sleeve 31. A base 36 is fixedly installed at the bottom of the sleeve 31. The threaded ring 34 is threaded onto the sleeve 31 and the arc-shaped plate 33. The joint is abutted against the top of the baffle 35. The outer wall of the support rod 32 has multiple positioning grooves 321 evenly spaced from top to bottom. The inner wall of the arc plate 33 is fixedly installed with two positioning blocks 331 that can engage with the positioning grooves 321. The support adjustment component 3 initially fixes the height by engaging the positioning blocks 331 with the positioning grooves 321. Then, the sleeve 31 and the arc plate 33 are locked with the threaded ring 34, realizing convenient height adjustment and reliable fixation. It can adapt to the height requirements of different models of wind turbines or installation scenarios, and solves the problem of limited height adjustment capability of traditional protective covers.

[0023] like Figure 1 and Figure 2 As shown, the lower shell 11 has two first slots 111 at the top right corners. The end plate 12 has two first inserts 121 fixedly installed at both ends of its bottom, each inserting into the corresponding first slot 111. The end plate 12 has two second slots 122 on its side facing the upper shell 13. The right end of the upper shell 13 has two second inserts 131 fixedly installed, each inserting into the corresponding second slot 122. The lower shell 11 has inverted T-shaped guide grooves 17 extending to its left side on both sides of its top. The bottom of the upper shell 13 has a guide plate 18 fixedly installed in the guide groove 17. Locking components 15 are provided on both sides of the right end of the lower shell 11 and between the lower shell 11 and the end plate 12. Two sets of limiting components 16 are provided on the left side of the lower shell 11 and located on the left side of the upper shell 13. Through the mutual insertion of the first slot 111 and the first insertion rod 121 and the second slot 122 and the second insertion rod 131, the structure realizes the quick positioning and docking of the lower shell 11, the end plate 12 and the upper shell 13. The inverted T-shaped guide groove 17 and the guide plate 18 ensure the smooth sliding of the upper shell 13. With the locking components 15 and the limiting components 16, the splicing sealing is improved and the disassembly and assembly process is simplified, which facilitates the inspection and maintenance of the high-speed shaft.

[0024] like Figure 1 and Figure 2 As shown, the locking assembly 15 includes a lower fixing block 151, an upper fixing block 152, and a bolt 153. The lower fixing block 151 is fixedly installed on the side of the right end of the lower shell 11, and the upper fixing block 152 is fixedly installed on the sides of both ends of the end plate 12. The bolt 153 is inserted through the corresponding lower fixing block 151 and upper fixing block 152. The locking assembly 15 uses the bolt 153 to pass through the lower fixing block 151 and upper fixing block 152 to realize the quick locking and unlocking of the lower shell 11 and the end plate 12. The structure is simple and reliable, which further improves the convenience of disassembling and assembling the protective cover and reduces the difficulty of maintenance operations.

[0025] like Figure 2 and Figure 3 As shown, the limiting component 16 includes a limiting frame 161, a limiting plate 162, and a first spring 163. The limiting frame 161 is fixedly installed on the left end of the lower shell 11, and the top and right side of the limiting frame 161 are provided with plate grooves. The limiting plate 162 is movably inserted into the plate groove, and the top end of the limiting plate 162 extends out of the plate groove and abuts against the left side of the upper shell 13. The first spring 163 is fixedly connected between the bottom end of the limiting plate 162 and the plate groove. The limiting component 16 pushes the limiting plate 162 out of the plate groove and abuts against the left side of the upper shell 13 through the first spring 163, thereby achieving the pre-limiting of the upper shell 13, preventing the upper shell 13 from sliding and loosening, and at the same time not affecting the disassembly and assembly operation of the upper shell 13, thus improving the stability of the docking between the upper shell 13 and the lower shell 11.

[0026] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wind turbine generator high speed shaft guard, characterized by, include: The lower shell (11) is horizontally positioned; End plate (12) is installed on the top of the right end of the lower shell (11); The upper shell (13) is installed on the top of the lower shell (11) and docked with the end plate (12); The shaft (14) is inserted through the lower shell (11), the upper shell (13) and the end plate (12) from left to right; The support plate (2) is placed horizontally below the lower shell (11). A fixing piece (21) is installed on the top left end of the support plate (2). A moving groove (23) is opened on the top right end of the support plate (2). A moving block (24) that can move left and right at a certain tilt angle is provided in the moving groove (23). A hinge (22) is installed at the bottom left end of the lower shell (11) and hinged to the fixing member (21). A fixing frame (25) is installed at the bottom right end of the lower shell (11). The top of the moving block (24) is slidably installed in the fixing frame (25). The support adjustment assembly (3) has two sets and is installed at both ends of the bottom of the support plate (2).

2. A wind turbine high speed shaft guard according to claim 1, wherein, The inner walls of the movable groove (23) are provided with a first sliding groove (231) with an inclination angle of 1° on both sides. The inner walls of the fixed frame (25) are provided with a second sliding groove (251) on both sides. The bottom of both sides of the movable block (24) is fixedly installed with a first slider (241) located in the corresponding first sliding groove (231). The top of both sides of the movable block (24) is fixedly installed with a second slider (242) located in the corresponding second sliding groove (251). The top of the support plate (2) and the edge of the movable groove (23) are provided with a scale mark. The side of the movable block (24) is provided with a pointer mark pointing to the scale mark.

3. A wind turbine high speed shaft guard according to claim 1, wherein, The movable block (24) has a screw hole. The right end of the support plate (2) is rotatably inserted with a screw (26) extending into the movable groove (23). The screw (26) is set to have the same inclination as the first sliding groove (231). The inner end of the movable groove (23) has a groove. A bearing (28) is fixedly installed in the groove. One end of the screw (26) located in the movable groove (23) is fixedly connected to the inner ring wall of the bearing (28).

4. A high-speed shaft protective cover for a wind turbine according to claim 3, characterized in that, The right end of the support plate (2) is provided with an annular toothed groove (201), the right end of the screw (26) is fixedly installed with an anti-detachment plate (261), and the right end of the screw (26) is provided with a square groove (262). A rotating cap (27) is sleeved on the right end of the screw (26). The left end of the rotating cap (27) is provided with teeth, and the toothed end of the rotating cap (27) can be inserted into the annular toothed groove (201) and engaged with it. The inner end of the rotating cap (27) is fixedly connected with a square rod (271) inserted into the square groove (262), and a second spring (272) sleeved on the outside of the screw (26) is fixedly connected between the inner end of the rotating cap (27) and the anti-detachment plate (261).

5. A high-speed shaft protective cover for a wind turbine as described in claim 1, characterized in that, The support adjustment assembly (3) includes a sleeve (31), a support rod (32), an arc plate (33), and a threaded ring (34). The support rod (32) is vertically fixed at the bottom of the support plate (2). The sleeve (31) is fitted over the support rod (32), and a semi-circular notch (311) is provided at the top of the sleeve (31). The arc plate (33) is fitted over the support rod (32) and abuts against the notch (311). The outer wall of the sleeve (31) A baffle (35) flush with the notch (311) is fixedly installed. A base (36) is fixedly installed at the bottom of the sleeve (31). The threaded ring (34) is threaded onto the joint between the sleeve (31) and the arc plate (33) and abuts against the top of the baffle (35). The outer wall of the support rod (32) is provided with multiple positioning grooves (321) at equal intervals from top to bottom. The inner wall of the arc plate (33) is fixedly installed with two positioning blocks (331) that can engage with the positioning grooves (321).

6. A high-speed shaft protective cover for a wind turbine according to claim 1, characterized in that, The lower shell (11) has two first slots (111) at the top right corners. The end plate (12) has two first insert rods (121) fixedly installed at both ends of the bottom. The end plate (12) has two second slots (122) on the side of the upper shell (13) that meet the upper shell (13). The upper shell (13) has two second insert rods (131) fixedly installed at the right end that can be inserted into the corresponding second slots (122). The lower shell (11) has two inverted T-shaped guide grooves (17) extending to its left end on both sides of the top. The upper shell (13) has a guide plate (18) fixedly installed at the bottom that can be slidably installed in the guide groove (17). Locking components (15) are provided between the lower shell (11) and the end plate (12) on both sides of the right end. The lower shell (11) has two sets of limiting components (16) located on the left side of the upper shell (13).

7. A high-speed shaft protective cover for a wind turbine according to claim 6, characterized in that, The locking assembly (15) includes a lower fixing block (151), an upper fixing block (152), and a bolt (153). The lower fixing block (151) is fixedly installed on the side of the right end of the lower shell (11), and the upper fixing block (152) is fixedly installed on the side of both ends of the end plate (12). The bolt (153) is inserted through between the corresponding lower fixing block (151) and upper fixing block (152).

8. A high-speed shaft protective cover for a wind turbine according to claim 6, characterized in that, The limiting component (16) includes a limiting frame (161), a limiting plate (162), and a first spring (163). The limiting frame (161) is fixedly installed on the left end of the lower shell (11), and the top and right side of the limiting frame (161) are provided with plate grooves. The limiting plate (162) is movably inserted into the plate groove, and the top end of the limiting plate (162) extends out of the plate groove and abuts against the left side of the upper shell (13). The first spring (163) is fixedly connected between the bottom end of the limiting plate (162) and the plate groove.

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