A wind turbine main shaft and a wind turbine generator

Abstract

The present application discloses a wind turbine main shaft and a wind turbine generator, and relates to the technical field of wind turbine generators. The present application includes: a mounting sleeve, on which a receiving cavity is provided; a main shaft rod, which is used to be inserted into the receiving cavity, and a fixing part is installed on the mounting sleeve. The present application installs the main shaft rod on the mounting sleeve through the receiving cavity. When the main shaft rod is inserted into the receiving cavity, the through holes on the main shaft rod and the mounting sleeve are aligned. At this time, the insertion rod is inserted into the through hole, and then the receiving plate is inserted into the mounting sleeve to fix the insertion rod. Then, through the elastic deformation of the elastic plate, the protrusion is inserted into the groove to complete the connection. When disassembly is required, the lubricating oil in the oil storage tank is in contact with the insertion rod through the cooperation of the opening and closing structure, thereby reducing the friction between the insertion rod and the inner wall of the through hole and the clamping structure, making it easy to disassemble the insertion rod, the through hole and the receiving plate, so that the device is more convenient when undergoing maintenance.

Description

Technical Field

[0001] The present application relates to the technical field of wind turbines, and in particular to a wind turbine main shaft and a wind turbine. Background Art

[0002] The main shaft of a wind turbine is a key part of the wind turbine transmission system. The main shaft and the main bearing are connected by interference fit, so the shaft diameter of the main shaft determines the shaft diameter of the main bearing, which affects the size and cost of the entire transmission chain. Due to the large alternating load, the main shaft structure is designed to meet fatigue strength. Due to the large axial load, the main shaft needs to be overhauled every six months to a year.

[0003] When installing the existing fan main shaft, the fan main shaft is installed on the wind turbine by bolts. However, when the wind turbine is used outdoors, especially at the seaside, the paint on the bolts may easily fall off, leading to rust, which makes it more troublesome to disassemble.

[0004] Therefore, the present invention proposes a wind turbine main shaft and a wind turbine generator to improve the problem. Summary of the invention

[0005] The purpose of this application is to solve the problems in the above-mentioned background technology. This application provides a wind turbine main shaft and a wind turbine generator.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A wind turbine main shaft and a wind turbine generator, comprising:

[0008] An installation sleeve having a receiving cavity formed thereon;

[0009] A spindle rod is used to be inserted in the accommodating cavity. A fixing piece is installed on the mounting sleeve. The fixing piece includes a through hole opened on the mounting sleeve and the spindle rod. A plug rod is slidably inserted in the through hole. A receiving plate is movably inserted on the mounting sleeve. A clamping structure is installed on the plug rod. The receiving plate is used to accommodate the clamping structure to limit the tendency of the plug rod to separate from the through hole.

[0010] A limiting member is mounted on the mounting sleeve, the limiting member comprises an elastic plate mounted on the mounting sleeve, a convex block is mounted on the elastic plate, a groove for accommodating the convex block is formed on the accommodating plate, and when the convex block is connected to the groove, the tendency of the accommodating plate to move away from the mounting sleeve is limited;

[0011] The oil filling piece is installed on the plug rod. The oil filling piece includes an oil storage box installed on the plug rod. The oil storage box is used to store lubricating oil. An opening and closing structure is installed in the oil storage box. The opening and closing structure is used to make the lubricating oil in the oil storage box contact with the plug rod.

[0012] Further, the clamping structure includes a T-shaped block installed at the end of the insertion rod, a T-shaped groove for accommodating the T-shaped block is formed on the receiving plate, and a receiving hole for accommodating the receiving plate is formed on the mounting sleeve.

[0013] Further, the limiting member includes a backing plate slidably installed in the receiving hole through a connecting spring, an L-shaped plate penetrating the receiving hole is installed on the backing plate, the L-shaped plate is slidably matched with the mounting sleeve, a抵触 block is installed at the free end of the L-shaped plate, the elastic plate is slidably installed on the mounting sleeve, and an inclined block is installed on the elastic plate. When the抵触 block abuts against the inclined block, the convex block is forced to be inserted into the groove.

[0014] Further, the opening and closing mechanism includes a connecting pipe installed on the insertion rod, a leakage pipe is slidably installed in the connecting pipe, a return spring is installed between the leakage pipe and the connecting pipe, a through port is formed in the part of the connecting pipe located in the oil storage tank, a through port is also formed in the part of the leakage pipe located in the oil storage tank, an outlet communicating with the outside is formed on the leakage pipe, and one end of the leakage pipe penetrates the oil storage tank and is installed with a pressing plate.

[0015] Further, a limiting rod is installed on the side wall of the oil storage tank, a limiting slide plate is hinged on the pressing plate. When the limiting slide plate contacts the oil storage tank, the sliding of the leakage pipe on the oil storage tank is restricted. A limiting hole for accommodating the limiting rod is formed on the limiting slide plate. When the limiting rod is located in the limiting hole, the rotation of the limiting slide plate is restricted.

[0016] Further, the L-shaped plate includes a base plate and a sliding plate. The base plate is connected to the backing plate, the sliding plate is slidably matched with the base plate, the抵触 block is installed on the sliding plate, a baffle is installed on the base plate, a threaded rod is rotatably installed on the sliding plate, and a limiting block is threadedly connected to the threaded rod. When the limiting block contacts the baffle, the sliding of the sliding plate on the base plate is restricted.

[0017] Further, a U-shaped rod is slidably installed on the mounting sleeve through a pulling spring, a diameter-locking rod is installed on the main shaft rod, the diameter of the diameter-locking rod is smaller than that of the main shaft rod, a diameter-locking hole for accommodating the diameter-locking rod is formed in the accommodating cavity, one end of the U-shaped rod penetrates the mounting sleeve and is located in the diameter-locking hole, a long groove for inserting the U-shaped rod is formed on the diameter-locking rod, a cross bar is installed on the side of the long groove away from the opening of the accommodating cavity, and a cross hole for accommodating the cross bar is formed on the U-shaped rod.

[0018] Further, an oil passage for the lubricating oil to pass through is formed on the insertion rod. When the insertion rod is connected to the receiving plate, the oil passage is communicated with the T-shaped groove.

[0019] Further, the distance from the main shaft rod to the diameter-locking hole is greater than the length of the U-shaped rod.

[0020] The present application also provides a wind turbine, comprising any one of the above-mentioned wind turbine main shafts, and also comprising a wind turbine tower, wherein a generator set is mounted on the wind turbine tower, a rotating plate is mounted on the generator set, and the mounting sleeve is connected to the rotating plate by bolts.

[0021] The beneficial effects of this application are as follows:

[0022] 1. The present application installs the main shaft rod on the mounting sleeve through the accommodating cavity. When the main shaft rod is inserted into the accommodating cavity, the through holes on the main shaft rod and the mounting sleeve are aligned. At this time, the insertion rod is inserted into the through hole, and then the accommodating plate is inserted into the mounting sleeve to fix the insertion rod. Then, the elastic deformation of the elastic plate allows the protrusion to be inserted into the groove to complete the connection. When disassembly is required, the lubricating oil in the oil storage tank is in contact with the insertion rod through the cooperation of the opening and closing structure, thereby reducing the friction between the insertion rod and the inner wall of the through hole and the clamping structure, making it easier to disassemble the insertion rod, the through hole and the accommodating plate, making the device more convenient when undergoing maintenance.

[0023] 2. When the present application is in use, after the insertion rod is inserted into the through hole, the receiving plate is aligned with the receiving hole and the receiving plate is inserted so that the T-slot receives the T-block to complete the connection. After the connection is completed, the movement of the receiving plate on the mounting sleeve along the radial direction of the mounting sleeve is restricted by the accommodation of the receiving hole, and then the T-slot of the receiving plate is larger than the side wall of the T-block to block the tendency of the insertion rod to separate from the through hole, thereby increasing the stability of the device when in use.

[0024] When the pad is pressed by the accommodating plate, the L-shaped plate is driven to slide in the direction close to the mounting sleeve, thereby causing the resistance block to resist the inclined block on the elastic plate, and guiding the inclined surface of the inclined block to make the elastic plate slide in the direction close to the accommodating plate. During the process, the spring on the elastic plate is stretched, causing the elastic plate to generate a force to resist the resistance block, and the resistance plate generates a force to resist the elastic plate, which reduces the gap between the elastic plate and the groove body on the mounting sleeve, thereby increasing the stability of the elastic plate during use, and when the resistance block resists the elastic plate, it also forces the protrusion to resist the inner wall of the groove, so that the protrusion is more stably connected to the groove, thereby improving the limiting effect of the accommodating plate, so that the accommodating plate is inserted into the accommodating hole, and self-locking is achieved through the cooperation of the L-shaped plate, the elastic plate, the resistance block and the inclined block, which is more convenient when connecting.

[0025] 4. When the present application is in use, the pressing plate is pressed to bring it close to the oil storage tank, causing the leakage tube to slide. During sliding, the circular plate moves away from the connecting tube, and the through-port on the leakage tube is aligned with the through-port on the connecting tube. The lubricating oil can enter the leakage tube and then be discharged to the outside of the oil storage tank through the outlet and contact with the insertion rod, aligning for lubrication, thereby facilitating lubrication of the insertion rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the main shaft structure of the fan of this application;

[0027] Figure 2 It is an exploded view of some structures of this application;

[0028] Figure 3 This is an exploded view of the rod structure of this application;

[0029] Figure 4 It is an exploded view of the structure of the restricted part of this application;

[0030] Figure 5 This is another exploded view of the rod insertion structure of the present application;

[0031] Figure 6 It is a schematic diagram of the installation set structure of this application;

[0032] Figure 7 It is another structural explosion diagram of the limiting part of this application;

[0033] Figure 8 It is another structural schematic diagram of the installation set of this application;

[0034] Fig. 9 This is a schematic diagram of the main shaft rod and the locking rod structure of the present application;

[0035] Fig.10 This is another structural diagram of the installation set of this application;

[0036] Fig.11 This application Figure 8 The three-dimensional cross-sectional view of the middle structure;

[0037] Fig.12 This application Figure 6 The three-dimensional cross-sectional view of the middle structure;

[0038] Fig.13 This application Figure 3 Enlarged image in the middle;

[0039] Fig.14 It is a schematic diagram of the structure of the wind turbine of the present application;

[0040] Reference numerals: 1, mounting sleeve; 101, receiving cavity; 2, main shaft rod; 3, fixing member; 301, through hole; 302, insertion rod; 303, receiving plate; 304, receiving hole; 305, T-shaped block; 306, T-shaped groove; 4, restricting member; 401, elastic plate; 402, convex block; 403, groove; 404, connecting spring; 405, backing plate; 406, L-shaped plate; 4061, base plate; 4062, sliding plate; 407, abutting block; 408, inclined block; 409, baffle; 4010, threaded rod; 4011, restricting block; 5, oil injection member; 501, oil storage tank; 502, connecting pipe; 503, leakage pipe; 504, through port; 505, outlet; 506, return spring; 507, pressing plate; 6, restricting rod; 7, restricting slide plate; 8, restricting hole; 9, pulling spring; 10, U-shaped rod; 11, diameter locking rod; 12, diameter locking hole; 13, long slot; 14, cross bar; 15, cross hole; 16, oil passage; 17, wind turbine tower barrel; 18, generator set; 19, rotating plate. Detailed implementation manners

[0041] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

[0042] Embodiment 1

[0043] As Figure 1 - Fig.13 shown, a wind turbine main shaft and a wind turbine generator proposed in Embodiment 1 of the present application include:

[0044] A mounting sleeve 1, on which a receiving cavity 101 is provided, and the receiving cavity 101 is a cylindrical cavity;

[0045] A main shaft rod 2, which is used to be inserted into the receiving cavity 101. The main shaft rod 2 is used to install wind turbine blades. The receiving cavity 101 accommodates a part of the rod body of the main shaft rod 2, and while installing the main shaft rod 2, it protects a part of the rod body of the main shaft rod 2;

[0046] The mounting sleeve 1 is provided with a fixing member 3, the fixing member 3 comprises a through hole 301 provided on the mounting sleeve 1 and the main shaft rod 2, a plug rod 302 is slidably inserted in the through hole 301, a receiving plate 303 is movably inserted in the mounting sleeve 1, a clamping structure is provided on the plug rod 302, the receiving plate 303 is used to accommodate the clamping structure to limit the tendency of the plug rod 302 to separate from the through hole 301, the opening direction of the through hole 301 is opened along the radial direction of the main shaft rod 2, when in use, the main shaft rod 2 is inserted into the mounting sleeve 1, the through holes 301 on the two are aligned, when the alignment is completed, the plug rod 302 is inserted into the through hole 301, the plug rod 30 2 is connected with the mounting sleeve 1 and the main shaft rod 2 along the radial direction of the main shaft rod 2, and the separation of the two needs to be separated along the axial direction, thereby limiting the separation of the main shaft rod 2 and the mounting sleeve 1. After the insertion rod 302 is installed, the receiving plate 303 is inserted into the mounting sleeve 1. When the receiving plate 303 is inserted into the mounting sleeve 1 and inserted to the maximum limit, the receiving plate 303 is connected with the insertion rod 302 through the clamping structure, thereby completing the connection between the receiving plate 303 and the insertion rod 302, and then installing the insertion rod 302 on the mounting sleeve 1, so that the insertion rod 302 will not be separated from the mounting sleeve 1 when in use, thereby increasing the stability of the device when in use;

[0047] The limiting member 4 is installed on the installation sleeve 1. The limiting member 4 includes an elastic plate 401 installed on the installation sleeve 1. A protrusion 402 is installed on the elastic plate 401. A groove 403 for accommodating the protrusion 402 is provided on the receiving plate 303. When the protrusion 402 is connected to the groove 403, the tendency of the receiving plate 303 to move away from the installation sleeve 1 is limited. The groove 403 is provided in a direction perpendicular to the insertion direction of the receiving plate 303 and the installation sleeve 1. The elastic deformation of the elastic plate 401 causes the protrusion 402 to be inserted into the groove 403, thereby fixing the receiving plate 303 and the installation sleeve 1, thereby reducing the stability of the receiving plate 303 when in use and increasing the stability of the device when in use.

[0048] The oil filling member 5 is installed on the plug rod 302. The oil filling member 5 includes an oil storage box 501 installed on the plug rod 302. The oil storage box 501 is used to store lubricating oil. An opening and closing structure is installed in the oil storage box 501. The opening and closing structure is used to allow the lubricating oil in the oil storage box 501 to contact the plug rod 302. The opening and closing structure plays a role similar to a valve, used to allow the oil storage box 501 to communicate with the outside world, and then discharge the lubricating oil so that it can contact the plug rod 302 to lubricate it. When disassembly is required, the lubricating oil in the oil storage box 501 is released through the opening and closing structure so that it can contact the plug rod 302, lubricate the gap between the plug rod 302 and the through hole 301, and lubricate the gap between the plug rod 302 and the clamping structure through the gap, thereby reducing the friction between the plug rod 302 and the two, and increasing the convenience of the device when disassembling;

[0049] The oil storage tank 501 is provided with an oil filling port, which is sealed by a sealing bolt, so that lubricating oil can be added to the oil storage tank 501 during maintenance. Since the threaded portion of the sealing bolt is immersed in the lubricating oil, the possibility of the sealing bolt being unable to be unscrewed is reduced, thereby increasing the feasibility of the device.

[0050] Compared with the prior art, the main shaft rod 2 is installed on the mounting sleeve 1 through the accommodating cavity 101. When the main shaft rod 2 is inserted into the accommodating cavity 101, the through hole 301 on the main shaft rod 2 and the mounting sleeve 1 is aligned. At this time, the insertion rod 302 is inserted into the through hole 301, and then the accommodating plate 303 is inserted into the mounting sleeve 1 to fix the insertion rod 302. Then, through the elastic deformation of the elastic plate 401, the protrusion 402 is inserted into the groove 403 to complete the connection. When disassembly is required, the lubricating oil in the oil storage tank 501 is in contact with the insertion rod 302 through the cooperation of the opening and closing structure, thereby reducing the friction between the insertion rod 302 and the inner wall of the through hole 301 and the clamping structure, thereby facilitating the disassembly of the insertion rod 302, the through hole 301 and the accommodating plate 303, making the device more convenient when undergoing maintenance.

[0051] Embodiment 2

[0052] like Figure 5 As shown, the second embodiment is based on the first embodiment to further disclose the fixing member 3, the limiting member 4 and the oil injection member 5. In the second embodiment, the clamping structure includes a T-block 305 installed at the end of the plug rod 302, and a T-slot 306 for accommodating the T-block 305 is opened on the accommodating plate 303. The mounting sleeve 1 is provided with an accommodating hole 304 for accommodating the accommodating plate 303, and the T-slot 306 runs through one side wall of the accommodating plate 303. Figure 5 As shown, when inserting the accommodating plate 303, this side is facing the mounting sleeve 1. When in use, after the insertion rod 302 is inserted into the through hole 301, the accommodating plate 303 is aligned with the accommodating hole 304, and the accommodating plate 303 is inserted so that the T-slot 306 accommodates the T-block 305 to complete the connection. After the connection is completed, the movement of the accommodating plate 303 on the mounting sleeve 1 along the radial direction of the mounting sleeve 1 is restricted by blocking the inner wall of the accommodating hole 304, and then the T-slot 306 of the accommodating plate 303 blocks the side wall of the T-block 305, thereby limiting the tendency of the insertion rod 302 to separate from the through hole 301, thereby increasing the stability of the device when in use.

[0053] like Figure 4 and Figure 6 As shown, in the second embodiment, the limiting member 4 includes a pad 405 slidably mounted in the receiving hole 304 through a connecting spring 404. When the receiving plate 303 is inserted into the receiving hole 304, the pad 405 is pressed and held, so that the connecting spring 404 is compressed;

[0054] An L-shaped plate 406 penetrating the receiving hole 304 is installed on the backing plate 405, and the L-shaped plate 406 is slidably matched with the mounting sleeve 1. The shorter end of the L-shaped plate 406 is connected to the backing plate 405, and a groove is opened on the mounting sleeve 1, which is connected to the receiving hole 304 and enables the receiving hole 304 to communicate with the outside. Fig.10 As shown, the shorter end of the L-shaped plate 406 is slidably matched with the slot body;

[0055] A resisting block 407 is installed on the free end of the L-shaped plate 406, and the elastic plate 401 is slidably installed on the mounting sleeve 1. The elastic plate 401 includes a plate body and a spring. The plate body is installed on the mounting sleeve 1 through the spring. The mounting sleeve 1 is provided with a groove body, and the groove body is slidably connected with the plate body. The plate body of the elastic plate 401 is also made of iron or other elastically deformable materials. Through elastic deformation, the protrusion 402 can be better fitted when connected with the groove 403, so that the accommodating plate 303 is more stable when in use;

[0056] The elastic plate 401 is provided with an inclined block 408. When the abutting block 407 abuts against the inclined block 408, the protrusion 402 is forced to be inserted into the groove 403. When the pad 405 is pressed by the receiving plate 303, the L-shaped plate 406 is driven to slide in the direction close to the mounting sleeve 1, so that the abutting block 407 abuts against the inclined block 408 on the elastic plate 401, and the elastic plate 401 slides in the direction close to the receiving plate 303 through the guidance of the inclined surface of the inclined block 408. During the process, the spring on the elastic plate 401 is stretched, so that the elastic plate 401 generates a force to abut against the abutting block 407, and the abutting block 407 7 generates a force to resist the elastic plate 401, so that the gap between the elastic plate 401 and the groove body on the installation sleeve 1 is reduced, and the stability of the elastic plate 401 when in use is increased. When the resisting block 407 resists the elastic plate 401, it also forces the protrusion 402 to resist the inner wall of the groove 403, so that the protrusion 402 is more stably connected to the groove 403, and the limiting effect on the accommodating plate 303 is improved, so that the accommodating plate 303 is inserted into the accommodating hole 304, and self-locking is completed through the cooperation of the L-shaped plate 406, the elastic plate 401, the resisting block 407 and the inclined block 408, which is more convenient when connecting.

[0057] like Figure 3 , Fig.11 and Fig.13 As shown, in the second embodiment, the opening and closing mechanism includes a connecting tube 502 installed on the insertion rod 302, and a leakage tube 503 is slidably installed in the connecting tube 502. The length of the connecting tube 502 is less than the overall thickness of the oil storage box 501, and the length of the leakage tube 503 is also less than the overall thickness of the oil storage box 501, but the sum of the lengths of the two is greater than the overall thickness of the oil storage box 501.

[0058] A return spring 506 is installed between the leakage pipe 503 and the connecting pipe 502. A circular plate is installed at one end of the leakage pipe 503 facing the insertion rod 302. The diameter of the circular plate is larger than the diameter of the connecting pipe 502. The return spring 506 forces the circular plate to approach the connecting pipe 502. A sealing ring is installed on the circular plate, so that the sealing performance of the connecting pipe 502 is increased in normal state.

[0059] The portion of the connecting pipe 502 located in the oil storage tank 501 is provided with a through opening 504, and the portion of the leakage pipe 503 located in the oil storage tank 501 is also provided with a through opening 504. Under normal conditions, due to the pulling of the return spring 506, the through opening 504 on the leakage pipe 503 is misaligned with the through opening 504 on the connecting pipe 502. At this time, the inner wall of the connecting pipe 502 blocks the through opening 504 on the leakage pipe 503, so that the lubricating oil cannot enter the leakage pipe 503, and the outer wall of the leakage pipe 503 blocks the through opening 504 on the connecting pipe 502, so that the lubricating oil cannot enter the connecting pipe 502, thereby further improving the sealing performance of the oil injection member 5.

[0060] An outlet 505 communicating with the outside is provided on the leakage pipe 503. One end of the leakage pipe 503 passes through the oil storage tank 501 and is installed with a pressing plate 507. The end of the leakage pipe 503 passing through the oil storage tank 501 faces the direction away from the center of the mounting sleeve 1, and a rubber sealing ring is installed on its circumference to increase the sealing performance of the oil storage tank 501. When in use, the pressing plate 507 is pressed to make it close to the oil storage tank 501, so that the leakage pipe 503 slides. When sliding, the circular plate is away from the connecting pipe 502, and the through port 504 on the leakage pipe 503 is aligned with the through port 504 on the connecting pipe 502, so that the lubricating oil can enter the leakage pipe 503, and then be discharged to the outside of the oil storage tank 501 through the outlet 505 and contact the insertion rod 302 to lubricate it, so as to facilitate the lubrication of the insertion rod 302.

[0061] Furthermore, the lubricating oil in the oil storage tank 501 does not need to be filled up, so that when the device is in use, the centrifugal force of rotation causes the pressing plate 507 to slide away from the oil storage tank 501, and the lubricating oil in the oil storage tank 501 is also thrown away from the insertion rod 302, further reducing the possibility of the lubricating oil leaking onto the insertion rod 302 when the device is in use, thereby increasing the practicality of the device.

[0062] like Figure 3 and Figure 8As shown, in the second embodiment, a limiting rod 6 is installed on the side wall of the oil storage box 501, and a limiting slide plate 7 is hinged on the pressing plate 507. When the limiting slide plate 7 contacts the oil storage box 501, the sliding of the leakage pipe 503 on the oil storage box 501 is limited. The limiting slide plate 7 is Z-shaped, and one end is hinged to the pressing plate 507. The length from the connection point between the limiting slide plate 7 and the pressing plate 507 to the next corner is equal to the distance from the pressing plate 507 to the oil storage box 501 in the normal state, so that when the limiting slide plate 7 rotates to contact the oil storage box 501, the sliding of the pressing plate 507 is limited by the blocking and interference of the limiting slide plate 7.

[0063] A limiting hole 8 for accommodating the limiting rod 6 is provided on the limiting slide 7. When the limiting rod 6 is located in the limiting hole 8, the rotation of the limiting slide 7 is restricted. The limiting rod 6 is made of rubber or other materials that can undergo elastic deformation. When in use, when the limiting slide 7 rotates to contact the oil storage tank 501, its side wall gradually conflicts with the limiting rod 6 until the limiting slide 7 rotates to the maximum limit. The limiting rod 6 is inserted into the limiting hole 8 to restrict the rotation of the limiting slide 7, thereby increasing the stability of the limiting slide 7 when in use. Moreover, since the limiting rod 6 is made of rubber, the friction between it and the limiting hole 8 is increased, the strength of the two is increased, and the stability of the limiting slide 7 is further increased.

[0064] like Figure 4 and Figure 6 As shown, in the second embodiment, the L-shaped plate 406 includes a base plate 4061 and a sliding plate 4062, the base plate 4061 is connected to the pad 405, the base plate 4061 is a shorter section of the L-shaped plate 406, and the sliding plate 4062 is a longer section thereof;

[0065] The sliding plate 4062 is slidably matched with the base plate 4061, and the abutment block 407 is installed on the sliding plate 4062.

[0066] A baffle plate 409 is installed on the base plate 4061, a threaded rod 4010 is rotatably installed on the sliding plate 4062, a limiting block 4011 is threadedly connected to the threaded rod 4010, a slot body penetrating the sliding plate 4062 is provided, the limiting block 4011 is slidably installed in the slot body, the threaded rod 4010 is rotatably matched with the slot body, the side wall of the limiting block 4011 is in contact with the inner wall of the slot body, so that the limiting block 4011 can only slide on the sliding plate 4062 and cannot rotate with the threaded rod 4010, and a plate body is installed on the side wall of the limiting block 4011, when the limiting block 4011 contacts the baffle plate 409, the plate body blocks the slot body, thereby reducing the possibility of the threaded rod 4010 contacting the outside world, thereby reducing the possibility of the threaded rod 4010 being damaged;

[0067] When the limiting block 4011 contacts the baffle 409, the sliding of the sliding plate 4062 on the substrate 4061 is restricted. The length of the limiting block 4011 plus the thickness of the sliding plate 4062 is equal to the distance from the baffle 409 to the substrate 4061, thereby restricting the sliding of the sliding plate 4062 on the substrate 4061;

[0068] During use, the limiting block 4011 contacts the baffle 409, enabling the entire L-shaped plate 406 to drive the抵触 block 407 to抵触 the inclined block 408. When disassembly is required, rotate the threaded rod 4010 to make the limiting block 4011 disengage from the baffle 409. At this time, the sliding plate 4062 can slide away from the elastic plate 401, enabling the抵触 block 407 to disengage from the抵触 of the inclined block 408. With this setting, a material with a larger elastic coefficient can be selected to make the elastic plate 401, making it more stable during use. Moreover, when disassembling, instead of掰动 the elastic plate 401, the抵触 between the抵触 block 407 and the inclined block 408 is解除 by sliding the sliding plate 4062, increasing the convenience of device disassembly.

[0069] Embodiment III

[0070] As Figure 1-Figure 13 shown, Embodiment III further discloses the present application on the basis of Embodiment II. In Embodiment III, a U-shaped rod 10 is slidably installed on the mounting sleeve 1 through a pulling spring 9. Taking Figure 1 the main view, the U-shaped rod 10 is slidably installed on the mounting sleeve 1 in the vertical direction. A diameter-locking rod 11 is installed on the main shaft rod 2, and the diameter of the diameter-locking rod 11 is smaller than that of the main shaft rod 2, resulting in a落差 between the main shaft rod 2 and the diameter-locking rod 11;

[0071] A diameter-locking hole 12 for accommodating the diameter-locking rod 11 is opened in the accommodating cavity 101. During use, after inserting the main shaft rod 2 into the accommodating cavity 101, the diameter-locking rod 11 is also inserted into the diameter-locking hole 12, increasing the contact area between the main shaft rod 2 and the mounting sleeve 1, increasing the friction between the two, and further increasing the connection strength between the two;

[0072] One end of the U-shaped rod 10 penetrates through the mounting sleeve 1 and is located within the diameter-locking hole 12. A long slot 13 for inserting the U-shaped rod 10 is formed on the diameter-locking rod 11. A cross bar 14 is installed on the side of the long slot 13 away from the opening of the receiving cavity 101. A cross hole 15 for receiving the cross bar 14 is formed on the U-shaped rod 10. The pulling spring 9 forces the U-shaped rod 10 to approach the receiving cavity 101. During installation, the U-shaped rod 10 is pulled away from the mounting sleeve 1 to insert the main spindle rod 2. After the insertion is completed, one end of the U-shaped rod 10 located within the diameter-locking hole 12 is misaligned with the long slot 13. During disassembly, the U-shaped rod 10 is also first pulled away from the receiving cavity 101 so as not to obstruct the disassembly of the main spindle rod 2. When the main spindle rod 2 is inserted into the receiving cavity 101, the main spindle rod 2抵触 the U-shaped rod 10, causing the U-shaped rod 10 to move away from the diameter-locking rod 11;

[0073] When an accident occurs to the device and the main spindle rod 2 has a tendency to fall off outside the receiving cavity 101, the main spindle rod 2 releases the抵触 on the U-shaped rod 10, and the diameter-locking rod 11 also moves outward, causing the long slot 13 to align with the U-shaped rod 10. At the same time, the pulling spring 9 pulls the U-shaped rod 10 to slide into the diameter-locking hole 12, causing the U-shaped rod 10 to be inserted into the long slot 13. And if the main spindle rod 2 continues to slide outward, the cross bar 14 is inserted into the cross hole 15, completing the connection between the U-shaped rod 10 and the long slot 13. The cross bar 14 blocks the inner wall of the cross hole 15, restricting the sliding of the U-shaped rod 10 by the cross bar 14. At the same time, the U-shaped rod 10 blocks the inner wall of the long slot 13, thereby restricting the tendency of the main spindle rod 2 to move away from the receiving cavity 101, playing an insurance role and increasing the practicality of the device;

[0074] When subsequent disassembly is carried out, the main spindle rod 2 is first pushed into the receiving cavity 101. After the cross bar 14 is separated from the cross hole 15, the U-shaped rod 10 is pulled to separate it from the long slot 13, and then the subsequent disassembly steps are carried out.

[0075] In Embodiment 3, an oil passage 16 for the lubricating oil to pass through is formed on the inserting rod 302. When the inserting rod 302 is connected to the receiving plate 303, the oil passage 16 is communicated with the T-shaped groove 306. During use, the oil passage 16 increases the gap between the inserting rod 302, the through hole 301, and the T-shaped groove 306, enabling the lubricating oil to flow better on the inserting rod 302, and further facilitating the disassembly of the inserting rod 302.

[0076] In Embodiment 3, the distance from the main spindle rod 2 to the diameter-locking hole 12 is greater than the length of the U-shaped rod 10. Through this length setting, during use, the U-shaped rod 10 only contacts the edge of the main spindle rod 2. Through this setting, when the misalignment amplitude of the main spindle rod 2 reaches the thickness of the end of the U-shaped rod 10, the抵触 on the U-shaped rod 10 can be released, causing the pulling spring 9 to pull the U-shaped rod 10 to be inserted into the diameter-locking hole 12, increasing the sensitivity of the insurance and the practicality of the device.

[0077] like Fig.14 As shown, the present application also provides a wind turbine, comprising any of the above-mentioned wind turbine main shafts, and in some embodiments, further comprising a wind turbine tower 17, on which a generator set 18 is mounted, on which a rotating plate 19 is mounted, and the mounting sleeve 1 is connected to the rotating plate 19 by bolts. When making the connection, the mounting sleeve 1 is installed in advance, and the mounting sleeve 1 does not need to be disassembled during maintenance. When in use, the mounting sleeve 1 is connected to the generator set 18 through the rotating plate 19, so that the entire wind turbine main shaft is connected to the wind turbine, so that the entire device can be used smoothly.

[0078] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application 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 fan main shaft, characterized in that: Comprising: An installation sleeve (1) with a receiving cavity (101) formed thereon; A main spindle rod (2) for being inserted into the receiving cavity (101). A fixing member (3) is installed on the installation sleeve (1). The fixing member (3) includes a through hole (301) formed in the installation sleeve (1) and the main spindle rod (2). An insertion rod (302) is slidably inserted into the through hole (301). A receiving plate (303) is movably inserted into the installation sleeve (1). A clamping structure is installed on the insertion rod (302), and the receiving plate (303) is used to receive the clamping structure to limit the tendency of the insertion rod (302) to separate from the through hole (301). A U-shaped rod (10) is slidably installed on the installation sleeve (1) through a pulling spring (9). A diameter-locking rod (11) is installed on the main spindle rod (2). The diameter of the diameter-locking rod (11) is smaller than that of the main spindle rod (2). A diameter-locking hole (12) for receiving the diameter-locking rod (11) is formed in the receiving cavity (101). One end of the U-shaped rod (10) penetrates through the installation sleeve (1) and is located in the diameter-locking hole (12). A long groove (13) for inserting the U-shaped rod (10) is formed in the diameter-locking rod (11). A cross bar (14) is installed on one side of the long groove (13) away from the opening of the receiving cavity (101). A cross hole (15) for receiving the cross bar (14) is formed in the U-shaped rod (10); A limiting member (4) is installed on the installation sleeve (1). The limiting member (4) includes an elastic plate (401) installed on the installation sleeve (1). A convex block (402) is installed on the elastic plate (401). A groove (403) for receiving the convex block (402) is formed in the receiving plate (303). When the convex block (402) is connected to the groove (403), the tendency of the receiving plate (303) to move away from the installation sleeve (1) is limited; An oil injection member (5) is installed on the insertion rod (302). The oil injection member (5) includes an oil storage tank (501) installed on the insertion rod (302). Lubricating oil is stored in the oil storage tank (501). An opening and closing structure is installed in the oil storage tank (501) for enabling the lubricating oil in the oil storage tank (501) to contact the insertion rod (302).

2. The fan main shaft according to claim 1, characterized in that: The clamping structure includes a T-shaped block (305) installed at the end of the insertion rod (302). A T-shaped groove (306) for receiving the T-shaped block (305) is formed in the receiving plate (303). A receiving hole (304) for receiving the receiving plate (303) is formed in the installation sleeve (1).

3. The fan main shaft according to claim 2, characterized in that: The limiting member (4) comprises a backing plate (405) slidably mounted in the receiving hole (304) via a connecting spring (404); an L-shaped plate (406) penetrating the receiving hole (304) is mounted on the backing plate (405); the L-shaped plate (406) is slidably matched with the mounting sleeve (1); a resistance block (407) is mounted on the free end of the L-shaped plate (406); the elastic plate (401) is slidably mounted on the mounting sleeve (1); an inclined block (408) is mounted on the elastic plate (401); when the resistance block (407) and the inclined block (408) are in contact, the protrusion (402) is forced to be inserted into the groove (403).

4. The fan main shaft according to claim 3, characterized in that: The opening and closing structure comprises a connecting tube (502) mounted on the insertion rod (302), a leakage tube (503) being slidably mounted in the connecting tube (502), a return spring (506) being mounted between the leakage tube (503) and the connecting tube (502), a through opening (504) being provided at a portion of the connecting tube (502) located in the oil storage box (501), a through opening (504) being also provided at a portion of the leakage tube (503) located in the oil storage box (501), an outlet (505) being provided on the leakage tube (503) for communication with the outside, and one end of the leakage tube (503) passing through the oil storage box (501) and being mounted with a pressing plate (507).

5. The fan main shaft according to claim 4, characterized in that: A limiting rod (6) is installed on the side wall of the oil storage box (501), and a limiting slide plate (7) is hinged on the pressing plate (507). When the limiting slide plate (7) contacts the oil storage box (501), the sliding movement of the leakage pipe (503) on the oil storage box (501) is restricted. A limiting hole (8) for accommodating the limiting rod (6) is formed on the limiting slide plate (7). When the limiting rod (6) is located in the limiting hole (8), the rotation of the limiting slide plate (7) is restricted.

6. The fan main shaft according to claim 5, characterized in that: The L-shaped plate (406) comprises a base plate (4061) and a sliding plate (4062); the base plate (4061) is connected to a pad (405); the sliding plate (4062) and the base plate (4061) are slidably matched; a resisting block (407) is mounted on the sliding plate (4062); a baffle (409) is mounted on the base plate (4061); a threaded rod (4010) is rotatably mounted on the sliding plate (4062); a limiting block (4011) is threadedly connected to the threaded rod (4010); when the limiting block (4011) contacts the baffle (409), the sliding of the sliding plate (4062) on the base plate (4061) is limited.

7. The fan main shaft according to claim 6, characterized in that: The insert rod (302) is provided with an oil passage (16) for lubricating oil to pass through; when the insert rod (302) is connected to the receiving plate (303), the oil passage (16) is in communication with the T-shaped groove (306).

8. The fan main shaft according to claim 7, characterized in that: The distance between the main shaft rod (2) and the locking hole (12) is greater than the length of the shaped rod (10).

9. A wind turbine generator, comprising a wind turbine main shaft according to any one of claims 1 to 8, characterized in that: It also comprises a wind turbine tower (17), a generator set (18) being mounted on the wind turbine tower (17), a rotating plate (19) being mounted on the generator set (18), and the mounting sleeve (1) and the rotating plate (19) being connected via bolts.

Images