阅读说明：本技术 一种叶片可自调节保护的风力发电装置 (Wind power generation device with blades capable of being protected by self adjustment ) 是由 李相同 于 2018-06-07 设计创作，主要内容包括：本发明提供了一种叶片可自调节保护的风力发电装置,包括轴部、风力发电叶片和使上述风力发电叶片旋转活动的弹性保护装置；所述轴部设有活动连接风力发电叶片底边的固定轴,固定轴呈J字型,有长轴和短轴之分；所述弹性保护装置包括穿过风力发电叶片的连接曲环、弹簧以及防滑片,弹簧套在连接曲环上,连接曲环一端穿过风力发电叶片上的开孔,并套有防滑片来固定,另一端固定在固定轴的短轴上,当风力过大或风向突变时,风力发电叶片压缩或释放弹簧来调节自身角度保护不受损以及调节上述叶片受到风压的面积,保证稳定工作。本发明结构轻便,不易损坏,便于安装,劳动成本降低,风力资源利用率较高,制作成本低,适用范围广。(The invention provides a wind power generation device with blades capable of being automatically adjusted and protected, which comprises a shaft part, wind power generation blades and an elastic protection device for enabling the wind power generation blades to rotate; the shaft part is provided with a fixed shaft movably connected with the bottom edge of the wind power generation blade, the fixed shaft is J-shaped and is divided into a long shaft and a short shaft; the elastic protection device comprises a connecting curved ring, a spring and an anti-slip sheet which penetrate through the wind power generation blade, the spring is sleeved on the connecting curved ring, one end of the connecting curved ring penetrates through a hole in the wind power generation blade, the anti-slip sheet is sleeved for fixing, the other end of the connecting curved ring is fixed on a short shaft of a fixing shaft, when wind power is too large or wind direction changes suddenly, the wind power generation blade compresses or releases the spring to adjust the angle of the wind power generation blade, so that the wind power generation blade is protected from being damaged, the area of the wind pressure of the. The wind power generator is light in structure, not easy to damage, convenient to install, low in labor cost, high in wind power resource utilization rate, low in manufacturing cost and wide in application range.)

1. A wind power generation device with blades capable of being automatically adjusted and protected is characterized in that: comprises a shaft part, a wind power generation blade and an elastic protection device which enables the wind power generation blade to rotate; the shaft part is provided with a fixed shaft movably connected with the bottom edge of the wind power generation blade, the fixed shaft is J-shaped and is divided into a long shaft and a short shaft; the elastic protection device comprises a connecting curved ring, a spring and an anti-slip sheet which penetrate through the wind power generation blade, the spring is sleeved on the connecting curved ring, one end of the connecting curved ring penetrates through a hole in the wind power generation blade, the anti-slip sheet is sleeved for fixing, the other end of the connecting curved ring is fixed on a short shaft of a fixing shaft, when wind power is too large or wind direction changes suddenly, the wind power generation blade compresses or releases the spring to adjust the angle of the wind power generation blade, so that the wind power generation blade is protected from being damaged, the area of the wind pressure of the.

2. Wind power plant with self-adjustable blade protection according to claim 1, characterized in that: the wind power generation device also comprises a generator room which is rotationally connected with the shaft part through a transmission shaft.

3. Wind power plant with self-adjustable blade protection according to claim 2, characterized in that: the generator cabin is provided with a tail wing at the rear tail, and the bottom of the generator cabin is provided with a bearing and is fixed on the mounting; the generator room is provided with a gear box for transmitting mechanical force generated by the blades generating resistance by wind pressure.

4. A wind power plant with self-adjustable blade protection according to claim 3, wherein: and a commutator is arranged in the bridging frame to convert the transmitted mechanical force into electric energy.

5. Wind power plant with self-adjustable blade protection according to claim 1, characterized in that: the wind power generation device is provided with 3-6 wind power generation blades.

6. Wind power plant with self-adjustable blade protection according to claim 1 or 5, characterized in that: the wind power generation blade is shaped like a rectangle, and the outer corners 2 are arc-shaped.

7. Wind power plant with self-adjustable blade protection according to claim 1, characterized in that: the bottom edge of the wind power generation blade is sleeved on the long shaft of the fixed shaft, and the top of the wind power generation blade is bent to prevent the wind power generation blade from sliding off.

8. Wind power plant with self-adjustable blade protection according to claim 1, characterized in that: the bottom edge of the wind power generation blade is movably connected with the fixed shaft through a hinge, the elastic protection device further comprises a buffer, the buffer is additionally arranged on the short shaft of the fixed shaft and is connected with the top end of the connecting curved ring, and the connecting curved ring can be retracted or released.

9. Wind power plant with self-adjustable blade protection according to claim 1, characterized in that: the wind power generation blade can be made of plastic or a metal material coated with anticorrosive paint.

10. Wind power plant with self-adjustable blade protection according to claim 1, characterized in that: the fin adopts the plastics material, and self can be according to wind direction regulation.

Technical Field

The invention belongs to the technical field of wind power generation, and particularly relates to a wind power generation device with blades capable of being protected by self adjustment.

background

Along with the continuous development of social economy, the power consumption in various fields is continuously increased, and the power consumption requirements of people are difficult to meet by utilizing resources such as firepower, waterpower and the like for power generation, so more and more people begin to pay attention to wind energy which is clean renewable energy, so that the generated energy is expected to be improved, and the smooth progress of various social activities is ensured.

The wind power generation is that wind power drives a wind power generation blade to rotate, the wind power generation blade is connected with a speed increaser, and the speed increaser drives a generator room to generate power after increasing the speed through a speed change mechanism. Obviously, the performance of a wind power generation blade as a main device of wind power generation directly determines the reliability and the working efficiency of wind power generation.

At present, each section on a wind power generation blade is designed into an airfoil shape, and the thickness, the torsion angle, the chord length and the like of the wind power generation blade have a certain distribution rule from the blade root to the blade tip, so that the wind power generation blade has a good aerodynamic shape, the resistance of the wind power generation blade under the action of wind force is greatly reduced, the rotating speed of the wind power generation blade under the pushing of wind power is increased, and the power generation efficiency is improved.

However, wind power generation sites in China mainly include mountainous areas, deserts, grasslands and coastal islands, and the sites have strong high-altitude environment wind speed and air flow, extremely high requirements on blade materials and contact elements such as bearings. And the wind power blade rotates at a high rotating speed for a long time, so that the brake pad in the wind power generation system is worn due to overheating, the gear box leaks oil, the generator cabin runs in an overload mode, and sparks are generated by lightning stroke. The existing wind power generation blades are very heavy, and the weight of one group of wind power generation blades is as high as 4 to 6 tons, so that the transportation and the maintenance of the wind power generation blades are extremely difficult; most wind power generation blades can generate power only by 5 to 7 grades of wind, and the working range is short. Therefore, today, the number of installed wind power plants is rapidly increasing, and the problems need to be solved urgently.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a wind power generation device with blades capable of realizing self-regulation protection. The wind power generation blade is light in weight, can normally generate power under the wind power of three to fifteen grades in a wide working range, and solves the problems of heavy weight and easy damage of the wind power generation blade.

In order to achieve the purpose, the technical scheme of the invention is as follows:

A wind power generation device with blades capable of self-adjusting and protecting comprises a shaft part, wind power generation blades and an elastic protection device for enabling the wind power generation blades to rotate; the shaft part is provided with a fixed shaft movably connected with the bottom edge of the wind power generation blade, the fixed shaft is J-shaped and is divided into a long shaft and a short shaft; the elastic protection device comprises a connecting curved ring, a spring and an anti-slip sheet which penetrate through the wind power generation blade, the spring is sleeved on the connecting curved ring, one end of the connecting curved ring penetrates through a hole in the wind power generation blade, the anti-slip sheet is sleeved for fixing, the other end of the connecting curved ring is fixed on a short shaft of a fixing shaft, when wind power is too large or wind direction changes suddenly, the wind power generation blade compresses or releases the spring to adjust the angle of the wind power generation blade, so that the wind power generation blade is protected from being damaged, the area of the wind pressure of the.

Furthermore, the wind power generation device also comprises a generator room which is rotationally connected with the shaft part through a transmission shaft; preferably, the top of the shaft part is fixedly installed through a pin shaft.

Furthermore, the generator cabin is provided with a tail wing at the rear tail, and the bottom of the generator cabin is provided with a bearing and is fixed on the mounting; the generator room is provided with a gear box for transmitting mechanical force generated by the blades generating resistance by wind pressure.

Furthermore, a commutator is arranged in the scaffold to convert the transmitted mechanical force into electric energy; the commutator is electrically conducted through the combination of the copper ring and the carbon brush, electricity of the generator cabin is transmitted to the lower portion, and if the commutator is not arranged, the generator can wind and break internal wires under the condition that the generator rotates all the time.

Furthermore, the wind power generation device is provided with 3-6 wind power generation blades.

Further, the wind power generation blade is shaped like a rectangle, and the outer corners 2 are arc-shaped.

Furthermore, the bottom edge of the wind power generation blade is sleeved on the long shaft of the fixed shaft, and the top of the wind power generation blade is bent to prevent the wind power generation blade from sliding off.

Furthermore, the bottom edge of the wind power generation blade is movably connected with the fixed shaft through a hinge, the elastic protection device further comprises a buffer which is additionally arranged on the short shaft of the fixed shaft and connected with the top end of the connecting curved ring, and the connecting curved ring can be retracted or released.

Furthermore, the wind power generation blade can be made of plastic or a metal material coated with an anticorrosive paint.

Furthermore, the empennage is made of plastic materials and can be adjusted according to the wind direction.

Has the advantages that: the wind power generator is light in structure, not easy to damage, convenient to install and maintain, low in labor cost, high in wind power resource utilization rate and low in manufacturing cost. The elastic protection device can correspondingly increase the pressed area of each blade and ensure extremely high wind energy conversion rate while protecting the blades from being damaged and stably working due to turnover, abrasion and the like.

Drawings

Fig. 1 is a schematic structural view of a wind turbine blade according to embodiment 1 of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a front view of a wind power generation blade according to embodiment 1 of the present invention.

Fig. 4 is a schematic view of the overall structure of embodiment 1 of the present invention.

Fig. 5 is a schematic view of a structure of a commutator in embodiment 1 of the present invention.

Fig. 6 is a schematic structural view of a wind turbine blade according to embodiment 2 of the present invention.

Fig. 7 is a partial enlarged view of fig. 6 at B.

In the figure, 1-shaft part, 2-wind power generation blade, 3-elastic protection device, 4-transmission shaft, 5-pin shaft, 6-hinge, 7-buffer, 8-generator cabin, 9-bridging and 10-rotating shaft; 11-a fixed shaft; 21-opening a hole; 31-connecting curved ring, 32-spring, 33-anti-slip sheet; 81-empennage, 82-bearing; 91-commutator, 92-copper ring, 93-carbon brush, 94-spring, 95-wire.

Detailed Description

The invention is illustrated below with reference to specific examples.