CN203146229U - Wind driven generator with multilevel regulation and control - Google Patents

Abstract

The utility model provides a multi-stage control wind power generator, which comprises a bracket, a blade arranged on the bracket, a rotating shaft connected to the blade, a bearing, and a generator connected to the rotating shaft, and the blade is a vertical axis blade. The vertical axis blades are divided into multiple stages, and the ends of the rotating shafts connected with the blades of each stage are provided with transmission gears, and the ends of the rotating shafts of the last stage blades are connected with generators. The utility model has the advantages of simple structure and convenient use, and the small blower is driven to rotate by the breeze, and the large blower is driven to rotate by the small blower.

Description

A kind of multi-level regulation wind power generator

technical field

The utility model relates to the field of wind power generation, in particular to a multi-level control wind power generator.

Background technique

The distribution of my country's wind energy resources is closely related to the weather and climate background. Regions rich in wind energy resources are mainly distributed in two regions. One is the Three North (Northeast, North China, and Northwest) regions, where the wind energy power density is 200-300 W/m 2 or more; the second is the rich belts along the coast and its islands, where the annual effective wind energy power density is above 200 watts/m2. In areas rich in wind energy, the country has concentrated on building wind energy power generation groups, and the electricity generated is used in various industries, which not only saves the use of fossil fuels, but also protects us more effectively by using wind energy as a new energy source. environment of.

However, for areas with relatively low wind power, in order to improve environmental quality and reduce the use of fossil fuels, some units or enterprises have also established a number of wind power generation facilities. Hours, it cannot operate normally (the whole equipment can only perform power generation function in a season with relatively concentrated wind or a period of time with relatively concentrated wind), and most of the time it stops running, which has caused aging and damage to the equipment in the long run As well as scrapping, the invested funds and equipment are out of proportion to the output value obtained, which is a waste of resources in a sense.

Contents of the invention

The technical problem to be solved by the utility model is to provide a multi-stage control wind power generation system with simple structure and convenient use, in which the breeze drives the small fan to rotate, and the small fan drives the large fan to rotate. machine.

The technical solution of the utility model is to provide the following multi-level control wind power generator, including a bracket, a blade arranged on the bracket, a rotating shaft connected to the blade, a bearing, and a generator connected to the rotating shaft. The blades are vertical shaft blades, and the vertical shaft blades are divided into multiple stages. The ends of the rotating shafts connected to the blades of each stage are provided with transmission gears, and the end of the rotating shaft of the last stage blades is connected with a generator.

With the above technical solutions, even in areas where the wind distribution is relatively weak, the breeze can only drive the smaller blades of the first stage to rotate. The principle of relatively labor-saving gear rotation can drive the final larger blades connected to the generator step by step, so as to realize wind power generation.

Preferably, the vertical axis blades are divided into three stages, and the area of the windward surface of the three-stage blades increases step by step. Adopting this technical solution, the area of the windward surface of the small blade is small, and the whole blade is small in size and light in weight, and is easily blown by the wind. The small blade of the upper stage drives the large blade of the lower stage to realize wind power generation.

Preferably, the area ratio of the windward surface of the three-stage blades is 1:1.5:2. By adopting the technical solution, the blades of the wind power generators at all levels can be driven to rotate relatively labor-saving.

Preferably, the transmission ratios between the transmission gears connected to the adjacent two-stage blades are all 1:3. Adopting this technical scheme, the diameter of the transmission gear of the upper stage is small, and the diameter of the transmission gear of the lower stage is large. The small gear drives the large gear, which can drive the generator to rotate with less labor. The transmission ratio of 1:3~1:5 is calculated and compared. Reasonable.

Preferably, a reversing gear is provided between the transmission gears of each stage, and the transmission ratio between the reversing gear and the transmission gear of the upper stage is 1:1. With this technical solution, the direction of rotation of the blades of the lower stage is consistent with that of the upper stage through the reversing wheel, so as to ensure that it coincides with the direction of wind blowing, increase the rotation speed, and improve the power generation efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Shown in the figure: 1, support, 2, blade, 3, rotating shaft, 4, bearing, 5, generator, 6, transmission gear, 7, reversing wheel.

Detailed ways

For the convenience of description, the utility model multi-stage control wind power generator will be described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, a multi-stage control wind power generator includes a support 1, a blade 2 arranged on the support 1, a rotating shaft 3 connected to the blade 2, a bearing 4, and a generator 5 connected to the rotating shaft 3 , the blade 2 is a vertical axis blade, the vertical axis blade is divided into three stages, the windward surface area of the three stage blades 2 increases step by step, and the windward surface area ratio of the three stage blades 2 1:1.5:2, the end of the rotating shaft 3 connected to the blades 2 of each stage is equipped with a transmission gear 6, and the transmission ratio between the transmission gears 6 connected to the adjacent two-stage blades 2 is 1:3, and a reversing gear 7 is arranged between the transmission gears 6 of each stage, and the transmission ratio between the reversing gear 7 and the transmission gear 6 of the upper stage is 1:1, and the blade 2 of the last stage A generator 5 is connected to the end of the rotating shaft 3 .

When in use, in a region with weak wind force, under the action of the breeze, the blade 2 with the smaller windward surface area of the first stage rotates first because of its small size and light weight, and then drives the blade 2 of the second stage, and finally drives the blade 2 of the second stage. The blades 2 of the third stage finally drive the generator 5 to rotate because the third stage rotating shaft 3 is connected with the generator 5 to realize power generation.

In the above embodiments, the best implementation mode of the present utility model has been described, obviously, many changes can still be made under the inventive concept of the present utility model. Here, it should be explained that any changes made under the inventive concept of the present utility model will fall within the protection scope of the present utility model.

Claims (5)

1. multistage regulation and control wind-driven generator, comprise the blade that arranges on support, the support, the generator that is connected in the rotating shaft that is connected with blade, bearing and the rotating shaft, it is characterized in that: described blade is vertical shaft blade, described vertical shaft blade is divided into multistage, the described roller end that is connected with each grade blade is equipped with driving gear, and the rotating shaft end of afterbody blade is connected to generator.

2. multistage regulation and control wind-driven generator according to claim 1, it is characterized in that: described vertical shaft blade is divided into three grades, and the windward side area of described three grade blades increases step by step.

3. multistage regulation and control wind-driven generator according to claim 2, it is characterized in that: the windward side area ratio of described three grade blades is 1:1.5:2.

4. multistage regulation and control wind-driven generator according to claim 1 is characterized in that: the velocity ratio between the driving gear that is connected on described adjacent two grade blades is 1:3 ~ 1:5.

5. multistage regulation and control wind-driven generator according to claim 4, it is characterized in that: be provided with tumbler gear between the described driving gears at different levels, the velocity ratio of described tumbler gear and upper level driving gear is 1:1.

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