Variable-pitch wind turbine

Abstract

The utility model relates to the technical field of wind turbines, in particular to a variable-pitch wind turbine which comprises a wind turbine body, the wind turbine body comprises a generator assembly, a supporting frame is supported on the bottom wall of the generator assembly, a distribution box is assembled on the lower portion of the rear side of the supporting frame, and a supporting column is supported on the lower portion of the front side of the supporting frame. A rotating drum is assembled at the rotating shaft end of the front side of the generator assembly, an inner bearing is assembled outside the rotating drum in a supporting mode, a supporting seat is assembled outside the inner bearing and assembled at the top of a supporting column, the rear side end of the rotating drum is assembled with the rotating shaft end of the generator assembly through a rotating frame, and a driving bin is assembled on the front side of the rotating drum. Four groups of paddles are assembled on the periphery of the front side of the driving bin, driving shafts are assembled at the inner ends of the four groups of paddles, the four groups of driving shafts are inserted and assembled in the driving bin, worm wheels are fixed at the inner ends of the driving shafts, and worms are meshed with the side edges of the four groups of worm wheels. According to the utility model, the blade pitch can be conveniently and tensely combined, assembled and supported and synchronously adjusted according to needs.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbines, and specifically relates to a variable pitch wind turbine. Background Technique

[0002] With the continuous growth of the global demand for clean energy, wind power generation, as a renewable energy technology, has been widely applied and developed, and is used in many fields. With the continuous improvement of technology, some wind turbines can be used for household power supply. In order to better utilize wind power, sometimes it is necessary to adjust the angle between the blade and the rotation direction, that is, variable pitch, so that the utilization of wind power is more convenient and efficient.

[0003] In this regard, Chinese Patent Application No.: CN202223314610.8 discloses a variable pitch wind turbine, which relates to the technical field of wind turbines; the rear end of the outer shell is installed with a bottom cover through bolts, a sealing gasket is arranged between the bottom cover and the outer shell, two limiting blocks are symmetrically installed inside the outer shell, the rotating shaft is installed in the inner hole of the front cover body through bearings and sealing oil seals, two sealing plate bodies are installed at the rear side of the rotating shaft, a small through hole is opened on the upper sealing plate body, the front cover body and the outer shell are connected by bolts, and a sealing gasket is arranged between the front cover body and the outer shell, a connecting sleeve is sleeved at the front end of the rotating shaft, key grooves are opened on both the rotating shaft and the torsion spring body, and the torsion spring body is sleeved outside the rotating shaft and connected by keys;

[0004] However, the existing variable pitch wind turbines are inconvenient to tightly assemble and support and synchronously adjust the blade pitch according to needs, which affects the use effect;

[0005] Therefore, in order to solve the above problems, a variable pitch wind turbine is proposed. Content of the Utility Model

[0006] The purpose of the utility model is to provide a variable pitch wind turbine to solve the problem that the existing variable pitch wind turbines are inconvenient to tightly assemble and support and synchronously adjust the blade pitch according to needs, which affects the use effect in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A variable pitch wind turbine, including a wind power body, the wind power body includes a generator assembly, and the bottom wall of the generator assembly is supported by a support frame, and a distribution box is assembled at the lower part of the rear side of the support frame, and a support column is supported at the lower part of the front side of the support frame;

[0008] A rotating cylinder is assembled at the front shaft end of the generator assembly. An inner bearing is supported and assembled outside the rotating cylinder. A support seat is assembled outside the inner bearing. The support seat is assembled on the top of the support column. The rear end of the rotating cylinder is assembled with the shaft end of the generator assembly through a rotating frame. A drive chamber is assembled at the front side of the rotating cylinder, and four groups of blades are assembled around the front side of the drive chamber. The inner ends of the four groups of blades are assembled with drive shafts. The four groups of drive shafts are inserted and assembled inside the drive chamber, and worm wheels are fixed at the inner ends of the drive shafts. Four worm wheels are meshed with worm gears on the side.

[0009] As a further step of this solution, a driven shaft is assembled inside the four worm gears. A driven gear is fixed at the rear end of the driven shaft. Four driven gears are meshed with a transmission gear on the inner side. A transmission shaft is fixed inside the transmission gear, and the rear end of the transmission shaft is connected to a servo motor through a coupling. The servo motor is electrically connected to a battery and a control component at the rear side, and the control component is located above the battery.

[0010] As a further step of this solution, bearing hangers with bearings are assembled at both ends of the driven shaft, and the bearing hangers with bearings are hoisted on the inner wall of the drive chamber. Bearing brackets with bearings support both ends of the transmission shaft, and the bearing brackets with bearings are assembled on the inner wall of the drive chamber. The servo motor, the battery and the control component are all assembled inside the rotating cylinder. A support plate is separated between the battery and the control component, and the control component is assembled on the surface of the support plate.

[0011] As a further step of this solution, a pedestal bearing is sleeved on the outer wall of the drive shaft. The two pedestal bearings are respectively assembled on the inner and outer walls of the drive chamber. A protective cover is assembled on the outer wall of the drive chamber, and the protective cover is sleeved on the outside of the drive shaft and covers the outside of the pedestal bearing. A docking chuck is integrally fixed at the outer end of the drive shaft, and a tray is sleeved outside the docking chuck and is tightened by screwing with a nut. A hidden groove is opened inside the tray. The side of the tray and the bottom of the blade are assembled through bolts.

[0012] As a further step of this solution, the docking part between the rotating cylinder and the drive chamber is assembled through bolts. A front inspection cover is covered and assembled at the front side of the drive chamber. A rear inspection cover is covered and assembled at the rear side of the rotating cylinder.

[0013] As a further step of this solution, the rotating frame is arranged in a hollow manner, and a slot hole corresponding to the shaft end of the generator assembly is opened in the center of the rotating frame. A support cylinder is assembled on the side of the rotating frame through self-tapping screws, and the support cylinder is fixed at the rear side of the rotating cylinder.

[0014] As a further step of this solution, a maintenance cover is assembled outside the rotating cylinder and the generator assembly. The bottom of both sides of the maintenance cover is assembled on both sides of the top surface of the support column through bolts. A tail cover that bends downward is arranged at the rear side of the maintenance cover, and the tail cover and the maintenance cover are integrally arranged.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model facilitates the tensioned combined assembly of supports and the synchronous adjustment of blade pitch according to needs;

[0016] By providing a rotating cylinder, the present utility model is supported by an inner bearing and a support seat, facilitating the assembly connection with a generator assembly through a rotating frame. At the same time, it is also convenient to dock and assemble a drive chamber, coordinating the drive adjustment inside the drive chamber, making subsequent use more convenient and facilitating local disassembly, inspection, and maintenance. Through this design, the convenience and practicality of the variable pitch wind turbine are improved.

[0017] By providing a drive chamber, with the setting of a drive shaft, the blades are assembled. Subsequently, the rotation of a worm drives the rotation of a worm gear, facilitating the rotation of the drive shaft, thereby driving the blades to perform variable pitch adjustment. At the same time, after adjustment, due to the principle that the worm gear cannot drive the worm to rotate, it is convenient to lock the worm gear and the drive shaft, facilitating the maintenance of relative stability after adjustment and facilitating the retention of the blades, making subsequent use more convenient. Through the setting of four groups of worm gears and worms, it is convenient to assist in the synchronous drive adjustment of variable pitch. Through this design, the convenience and practicality of the variable pitch wind turbine are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a side view, sectional, and three-dimensional schematic diagram of the structure of the present utility model;

[0019] Figure 2 It is a front view, three-dimensional schematic diagram of the overall structure of the present utility model;

[0020] Figure 3 It is a front view, sectional, and three-dimensional schematic diagram of the partial structure of the drive chamber of the present utility model;

[0021] Figure 4 It is a side view, three-dimensional schematic diagram of the partial structure of the drive chamber of the present utility model;

[0022] Figure 5 It is a side view, three-dimensional exploded assembly diagram of the partial structure of the wind turbine body of the present utility model;

[0023] In the figure: 100, wind power machine body; 110, generator assembly; 111, support frame; 120, distribution box; 130, support column; 140, maintenance cover; 141, tail cover; 200, rotating cylinder; 201, overhaul back cover; 210, inner bearing; 220, support seat; 230, rotating frame; 231, support cylinder; 232, self-tapping screw; 300, drive chamber; 301, overhaul front cover; 310, blade; 320, drive shaft; 321, bearing pedestal; 322, protective cover; 323, docking chuck; 324, tray; 325, hidden groove; 330, worm gear; 340, worm; 341, driven shaft; 342, bearing hanger; 350, driven gear; 360, transmission gear; 361, transmission shaft; 362, bearing bracket; 370, servo motor; 380, battery; 390, control component; 391, support plate. Specific implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-5 , an embodiment provided by the present invention:

[0026] A variable pitch wind turbine includes a wind power machine body 100. The wind power machine body 100 includes a generator assembly 110. The bottom wall of the generator assembly 110 is supported by a support frame 111. A distribution box 120 is assembled at the lower part of the rear side of the support frame 111. A support column 130 is supported at the lower part of the front side of the support frame 111;

[0027] The front side shaft end of the generator assembly 110 is assembled with a rotating cylinder 200. An inner bearing 210 is supported and assembled outside the rotating cylinder 200. A support seat 220 is assembled outside the inner bearing 210. The support seat 220 is assembled at the top of the support column 130. The rear side end of the rotating cylinder 200 is assembled with the shaft end of the generator assembly 110 through a rotating frame 230. The front side of the rotating cylinder 200 is assembled with a drive chamber 300. Four groups of blades 310 are assembled around the front side of the drive chamber 300. The inner ends of the four groups of blades 310 are assembled with a drive shaft 320. The four groups of drive shafts 320 are inserted and assembled inside the drive chamber 300. A worm gear 330 is fixed at the inner end of the drive shaft 320. A worm 340 is meshed with the sides of the four groups of worm gears 330;

[0028] More specifically in this embodiment, a driven shaft 341 is assembled inside the four groups of worm gears 340. A driven gear 350 is fixed to the rear end of the driven shaft 341. A transmission gear 360 is meshed inside the four groups of driven gears 350. A transmission shaft 361 is fixed inside the transmission gear 360. The rear end of the transmission shaft 361 is connected to a servo motor 370 through a coupling. The rear side of the servo motor 370 is electrically connected to a battery 380 and a control component 390. The control component 390 is located above the battery 380. Through this design, it is convenient to assist in driving the rotation of the worm wheel 330 and the worm gear 340, making the operation more convenient;

[0029] More specifically in this embodiment, bearing brackets 342 with bearings are assembled at both ends of the driven shaft 341. The bearing brackets 342 with bearings are hoisted on the inner wall of the drive chamber 300. Bearing supports 362 with bearings support both ends of the transmission shaft 361. The bearing supports 362 with bearings are assembled on the inner wall of the drive chamber 300. The servo motor 370, the battery 380, and the control component 390 are all assembled inside the rotating cylinder 200. A support plate 391 is separated between the battery 380 and the control component 390. The control component 390 is assembled on the surface of the support plate 391. Through this design, it is convenient to stably support the driven shaft 341 and the transmission shaft 361, facilitating subsequent stable driving;

[0030] More specifically in this embodiment, a pedestal bearing 321 is sleeved on the outer wall of the drive shaft 320. The two groups of pedestal bearings 321 are respectively assembled on the inner and outer walls of the drive chamber 300. A protective cover 322 is assembled on the outer wall of the drive chamber 300. The protective cover 322 is sleeved outside the drive shaft 320 and covers the outside of the pedestal bearing 321. A docking chuck 323 is integrally fixed to the outer end of the drive shaft 320. A tray 324 is sleeved outside the docking chuck 323 and is tightly assembled by screwing with a nut. A hidden groove 325 is opened inside the tray 324. The side of the tray 324 and the bottom of the blade 310 are assembled by bolts. Through this design, it is convenient to stably support the drive shaft 320 and also convenient to support and assemble the blade 310, facilitating subsequent driving rotation to adjust the pitch;

[0031] More specifically in this embodiment, the docking part between the rotating cylinder 200 and the drive chamber 300 is assembled by bolts. A front inspection cover 301 is covered and assembled on the front side of the drive chamber 300. A rear inspection cover 201 is covered and assembled on the rear side of the rotating cylinder 200. Through this design, it is convenient to disassemble, assemble, inspect, and maintain the rotating cylinder 200 and the drive chamber 300;

[0032] More specifically in this embodiment, the rotating frame 230 is provided with a hollow structure, and a slot hole corresponding to the rotating shaft end of the generator assembly 110 is formed in the center of the rotating frame 230. A support cylinder 231 is assembled to the side of the rotating frame 230 by self-tapping screws 232, and the support cylinder 231 is fixed to the rear side of the rotating cylinder 200. Through this design, the combined assembly among the rotating frame 230, the generator assembly 110, and the rotating cylinder 200 is facilitated.

[0033] More specifically in this embodiment, a maintenance cover 140 is assembled and covered outside the rotating cylinder 200 and the generator assembly 110. Both bottom sides of the maintenance cover 140 are assembled to the top surfaces of both sides of the support column 130 by bolts. A tail cover 141 that bends downward is provided at the rear side of the maintenance cover 140, and the tail cover 141 and the maintenance cover 140 are integrally provided. Through this design, the assembly and maintenance of the outside of the generator assembly 110 and the rotating cylinder 200 are facilitated.

[0034] Working principle: During assembly and use, through the control and power supply of the control component 390 and the battery 380, it is convenient to drive the servo motor 370 to rotate and drive the transmission shaft 361 to rotate, so that the transmission gear 360 meshes with the driven gear 350 to rotate. Four groups of driven gears 350 synchronously drive four groups of driven shafts 341 to rotate, so that the four groups of driven shafts 341 drive four groups of worm gears 340 to rotate, so that the four groups of worm gears 340 drive the corresponding worm wheels 330 to rotate, thereby driving the corresponding drive shafts 320 to rotate to adjust the pitch of the blades 310. After adjustment, through the self-locking of the worm gear 340 and the worm wheel 330, it is convenient to maintain relative fixation, so that the corresponding state is maintained after the pitch change, which is convenient to assist the rotation of the wind power body 100 for wind power generation; during assembly, Bluetooth and other remotely controllable modules can be integrated inside the control component 390 according to needs for subsequent control and use; at the same time, under the docking of the drive shaft 320 and the blade 310, it is also convenient for subsequent disassembly, inspection and maintenance. At the same time, disassembly, inspection and maintenance can also be carried out through the inspection front cover 301 and the inspection back cover 201. Through the combined assembly among the drive chamber 300, the rotating cylinder 200, the rotating frame 230, and the generator assembly 110, it is also convenient for subsequent local disassembly, inspection and maintenance, making the use more convenient. The operation ends here.

[0035] It should be noted that in this application, the specific connection structure and working principle of the servo motor 370, the battery 380, the control component 390, the generator assembly 110, and the distribution box 120 all belong to the prior art. And the connection words such as assembly connection in this application are common knowledge to those skilled in the art and can be realized through various implementation manners. And no other special requirements are made in this application, as long as it can realize the functions in this application. Therefore, no specific limitations are made here.

[0036] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model; any ordinary technician in the industry can smoothly implement the present utility model according to what is shown in the accompanying drawings of the specification and the above; however, any minor changes, modifications and equivalent variations made by those skilled in the art within the scope of the technical solution of the present utility model by using the technical content disclosed above are all equivalent embodiments of the present utility model; at the same time, any changes, modifications and equivalent variations made to the above embodiments based on the essential technology of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A variable pitch wind turbine, comprising a wind turbine body (100), the wind turbine body (100) comprising a generator assembly (110), wherein a support frame (111) is supported on a bottom wall of the generator assembly (110), a distribution box (120) is mounted on a lower rear portion of the support frame (111), and a support column (130) is supported on a lower front portion of the support frame (111); Features: The front shaft end of the generator assembly (110) is equipped with a rotating drum (200), the outer support of the rotating drum (200) is equipped with an inner bearing (210), the outer side of the inner bearing (210) is equipped with a support seat (220), the support seat (220) is assembled on the top of the support column (130), the rear end of the rotating drum (200) is assembled with the rotating shaft end of the generator assembly (110) through a rotating frame (230), the front side of the rotating drum (200) is equipped with a driving bin (300), and four groups of blades (310) are assembled around the front side of the driving bin (300), the inner ends of the four groups of blades (310) are equipped with driving shafts (320), the four groups of driving shafts (320) are inserted and assembled in the driving bin (300), and the inner ends of the driving shafts (320) are fixed with worm wheels (330), and the sides of the four groups of worm wheels (330) are meshed with worms (340).

2. A variable pitch wind turbine according to claim 1, characterized in that: A driven shaft (341) is assembled inside the four groups of worm gears (340), a driven gear (350) is fixed at the rear end of the driven shaft (341), a transmission gear (360) is meshed inside the four groups of driven gears (350), a transmission shaft (361) is fixed inside the transmission gear (360), and a servo motor (370) is connected at the rear end of the transmission shaft (361) via a coupling, a battery (380) and a control component (390) are electrically connected at the rear side of the servo motor (370), and the control component (390) is located above the battery (380).

3. A variable pitch wind turbine according to claim 2, characterized in that: The driven shaft (341) is equipped with bearing hangers (342) at both ends, and the bearing hangers (342) are hung on the inner wall of the driving bin (300); the transmission shaft (361) is supported with bearing brackets (362) at both ends, and the bearing brackets (362) are installed on the inner wall of the driving bin (300); the servo motor (370), the battery (380) and the control component (390) are all installed inside the rotating drum (200); the battery (380) and the control component (390) are separated by a support plate (391), and the control component (390) is installed on the surface of the support plate (391).

4. A variable pitch wind turbine according to claim 1, characterized in that: The outer wall of the driving shaft (320) is sleeved with a seat bearing (321), and two groups of the seat bearings (321) are respectively mounted on the inner and outer walls of the driving chamber (300), and the outer wall of the driving chamber (300) is equipped with a protective cover (322), and the protective cover (322) is sleeved on the outside of the driving shaft (320) and covers the outside of the seat bearings (321), the outer end of the driving shaft (320) is integrally fixed with a docking clamp (323), and the outside of the docking clamp (323) is sleeved with a tray (324) and assembled and fastened by nut thread sleeve, and a hidden groove (325) is opened inside the tray (324), and the side of the tray (324) is assembled with the bottom of the blade (310) by bolts.

5. The variable pitch wind turbine according to claim 1, characterized in that: The joint between the rotating drum (200) and the driving chamber (300) is assembled by means of bolts, and the front side of the driving chamber (300) is covered with a maintenance front cover (301), and the rear side of the rotating drum (200) is covered with a maintenance back cover (201).

6. A variable pitch wind turbine according to claim 1, characterized in that: The rotating frame (230) is hollowed out, and a slot corresponding to the end of the rotating shaft of the generator assembly (110) is provided in the center of the rotating frame (230). A support cylinder (231) is assembled on the side of the rotating frame (230) via a self-tapping screw (232), and the support cylinder (231) is fixed to the rear end side of the rotating cylinder (200).

7. A variable pitch wind turbine according to claim 1, characterized in that: The outer covers of the rotating drum (200) and the generator assembly (110) are equipped with a maintenance cover (140), and the bottoms of both sides of the maintenance cover (140) are assembled on both sides of the top surface of the support column (130) by bolts, and the rear side of the maintenance cover (140) is provided with a downwardly bent tail cover (141), and the tail cover (141) and the maintenance cover (140) are integrally arranged.

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