CN201090372Y

CN201090372Y - Multilevel wind motor

Info

Publication number: CN201090372Y
Application number: CNU2007200861947U
Authority: CN
Inventors: 高建华
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-25
Filing date: 2007-07-25
Publication date: 2008-07-23
Anticipated expiration: 2017-07-25

Abstract

The utility model relates to a multi-stage wind power generator, belonging to a technical field of wind power electricity generation. The utility model mainly comprises a wind-gathering speed-increasing outer cover, a single-stage or multi-stage transmission, multi-stage fan blades, and a blade wind-face automatic adjusting device. The wind power generator can realize low-speed electricity generation so as to utilize energies of natural wind at maximum efficiency. As the wind-gathering speed-increasing outer cover and the fan guide flow cover are combined, the gas flowing through the inner cavity of the outer cover is accelerated and simultaneously pushes the differential rotation of multi-stage blade group, i.e adjacent blade groups have reverse rotational directions, so as to improve rotating speed of output shaft of planetary transmission and reinforce work efficiency of generator, the rotational speed of wind wheel of wind power generator can be adjusted automatically so as to avoid the damage of generator system due to strong wind. The wind-gathering speed-increasing outer cover can track wind direction automatically, and also reinforce the strength and wind speed of air flow in the inner cavity of the outer cover.

Description

Multistage aerogenerator

Technical field

The utility model relates to a kind of multistage wind generator, particularly a kind of compact structure, efficient height, and the novel energy equipment that (wind speed per second 1.2 meter per seconds) can generate electricity under gentle breeze belongs to the novel energy technical field.

Background technique

Wind-driven generator receives much attention in the novel energy industry as one of important clean energy resource equipment and is rapidly developed.Traditional wind-driven generator adopts the structure of single-stage three blade rotation more, and the shortcoming of this structure is that wind energy utilization is low, and blade dimensions is long, and it is many to take up room, and operating noise is big, and energy efficiency is poor, the cost of electricity-generating height.

Summary of the invention

The purpose of this utility model provides a kind of low cost of manufacture, and is easy to use, the new high-efficiency wind-driven generator of clean environment firendly, this wind-driven generator structure compactness, the efficient height can breeze wind, and free from environmental pollution, operating cost is low, can be in the coastal area, the mountain area, the Plain is extensive use of.Micro wind turbine generator can also provide electric energy for the vehicle, boats and ships etc. of operation or provide power and auxiliary clean energy resource for vehicle-mounted, boat-carrying chiller plant.

The purpose of this utility model is achieved in that a kind of multistage aerogenerator, comprise column 3, column 3 flexibly connects with outer cover 4, air guide sleeve 5 is connected with outer cover 4 by connecting plate 9, in outer cover 4, be provided with output shaft 8, single-stage or multi-stage planetary gear speed changer 2 are connected with output shaft 8, and the gear ring and the planetary gear carrier external cylindrical surface of single-stage or multi-stage planetary gear speed changer 2 are equipped with multilayer blade system 1.

The first order vane group 10 of multilayer blade system 1 is connected with the external cylindrical surface elasticity of the planetary gear carrier 7 of first order planetary transmission 6.Outer cover 4 and circular cone ring body of air guide sleeve 5 common formation.The two adjacent vane group and the central axis 18 of outer cover 4 form positive angle and negative angle respectively.The cross section of blade is an airfoil.Output shaft 8 can connect generator or other machine for doing work.The gear ring of single-stage or multi-stage planetary gear speed changer and the motion of planetary gear carrier are promoted by two groups of fan blades respectively, and sense of rotation is opposite, and gear ring and planetary gear carrier are driving wheel, and the planetary transmission central gear is a follower.

Multistage aerogenerator provided by the utility model, because the synergy of gathering speed increasing wind outer cover and blower fan air guide sleeve, the gas of outer cover inner chamber of flowing through quickens automatically, promote the differential rotation of multistage vane group simultaneously, it is the switched in opposite of adjacent blades group, improve the output shaft rotating speed of planetary transmission, the working efficiency of amplification generator.The rotating speed of wind turbines rotor can be regulated automatically, avoids the infringement that brings to generator system because of high wind.The gathering speed increasing wind outer cover of wind-driven generator can be from the motion tracking wind direction, but and enhanced flow through the intensity and the wind speed of fan housing inner chamber air-flow.This wind-driven generator can be realized the generating of gentle breeze low speed, utilizes to maximal efficiency the energy of natural wind.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

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

Fig. 2 is the utility model wind wheel blade correlation schematic representation.

Embodiment

The utility model adopts following structure: a kind of multistage aerogenerator, comprise column 3, column 3 flexibly connects with outer cover 4, air guide sleeve 5 is connected with outer cover 4 by connecting plate 9, in outer cover 4, be provided with output shaft 8, single-stage or multi-stage planetary gear speed changer 2 are connected with output shaft 8, and the gear ring and the planetary gear carrier external cylindrical surface of single-stage or multi-stage planetary gear speed changer 2 are equipped with multilayer blade system 1.The first order vane group 10 of multilayer blade system 1 is connected with the external cylindrical surface elasticity of the planetary gear carrier 7 of first order planetary transmission 6.Described resilient connection is meant that the wind-receiving face of blade can prevent that because of wind-force is too big the vane group high speed rotating damages blower fan according to the size adjustment automatically of wind-force.Blade can rotate around the axis of self, thereby changes the size of blade wind-receiving face, adjusts the rotating speed of blade automatically.The second level or also be that elasticity connects more than the secondary is adjusted the rotating speed of blade synchronously.Outer cover 4 and circular cone ring body of air guide sleeve 5 common formation.The two adjacent vane group and the central axis 18 of outer cover 4 form positive angle and negative angle respectively.The cross section of blade is an airfoil.Output shaft 8 can connect generator or other machine for doing work.The gear ring of single-stage or multi-stage planetary gear speed changer and the motion of planetary gear carrier are promoted by two groups of fan blades respectively, and sense of rotation is opposite, and gear ring and planetary gear carrier are driving wheel, and the planetary transmission central gear is a follower.

Working principle of the present utility model is as follows: the periphery of the outer cover 4 of this wind-driven generator and inner chamber are conical basically, import is big, goes out youngly, has the ability from the motion tracking wind direction, the integral body of wind-driven generator can freely be rotated at the strong point around column 3, adjusts the weather side of blower hood.When the conical end face of natural wind by the outer cover 4 of wind-driven generator entered the inner chamber of outer cover 4, because the coniform shell cross section from large to small, the air-flow of outer cover 4 inner chambers of flowing through was accelerated under action of pressure; Same principle, the streamline air guide sleeve 5 in outer cover 4 central shaft positions quickens the gas of flowing through simultaneously.The directly positive first order vane group 10 clockwise directions rotation that promotes multilayer blade system 1 of the air-flow that is accelerated, each blade face of first order vane group 10 becomes to bear angle with the axis of outer cover 4, directly promote blade face becomes positive angle with the axis of outer cover second level vane group 11 rotation counterclockwise then successively, promote the blade face of third level vane group 14, also be negative angle, the clockwise direction rotation, by that analogy surplus.When air is flowed through along the peripheral surface of outer cover 4, form the negative pressure or the partial vacuum zone of certain limit at outer cover 4 afterbodys, this zone forms pressure difference with the air-flow that enters blower hood 4 inside, further quickening outer cover 4 gas inside flows fast, the air-flow of outer cover 4 inner chambers of flowing through is subjected to pressurizeing and the effect of vacuum suction, wind speed is strengthened greatly, and then realizes breeze wind.

The first order vane group 10 of wind-driven generator is connected with the external cylindrical surface elasticity of the planetary gear carrier 7 of first order planetary transmission 6, too high for preventing blower fan central shaft 8 rotating speeds under the hurricane situation, the fan blade group can be around self axis rotation, to reduce the area of vane group wind-engaging, reduce the rotating speed of blower fan; The support that first order vane group 10 directly drives the planetary gear carrier 7 of first order planetary transmission 6 turns clockwise.The gear ring 13 that second level vane group 11 directly drives first order planetary transmission 6 is rotated counterclockwise.Planetary pinion 12 drives central gear or the rotation of central shaft 8 speedups.

The lobe numbers of every grade blade group can equate or be unequal that the lobe numbers of every grade blade group generally is equal to or greater than three, evenly distributes.The long-pending airfoil that is shaped as of all blade profiles can form running torque automatically and promote the wind wheel rotation when air-flow process blade.

If have only the one-level speed changer, the central gear of this grade speed changer or central shaft are directly with generator or the continuous work of other machinery.If there is the two-stage speed changer in system, the central shaft of first order speed changer links to each other with partial planetary carrier, the gear ring that the 3rd vane group 14 drives second level speed changer 16 clockwise rotates, and the central gear of second level speed changer 16 or central shaft connect the machinery of generator or other work done.Sense of rotation between the adjacent blades group is opposite.

When wind-force was excessive, the blade on every grade blade group can be adjusted the orientation of the wind-receiving face of blade automatically, reduced the rotating speed of blade.

The mode of structure of multi-change speed mechanism wind-driven generator and working principle are by that analogy.The output of previous stage speed changer 6 central gears or central shaft is the input of the planetary gear carrier of next stage speed changer, therefore from second level speed changer, the air blade group of blower fan only is connected on the outer peripheral surface of gear ring, the promotion gear ring rotates, and then the planetary gear carrier of one-level is that central shaft by previous stage directly drives.In with the one-level planetary transmission, the switched in opposite of gear ring and planetary carrier.

Claims

1. multistage aerogenerator, comprise column (3), column (3) flexibly connects with outer cover (4), it is characterized in that: air guide sleeve (5) is connected with outer cover (4) by connecting plate (9), in outer cover (4), be provided with output shaft (8), single-stage or multi-stage planetary gear speed changer (2) are connected with output shaft (8), and the gear ring and the planetary gear carrier external cylindrical surface of single-stage or multi-stage planetary gear speed changer (2) are equipped with multilayer blade system (1).

2. claim requires 1 described multistage aerogenerator, it is characterized in that: the first order vane group (10) of multilayer blade system (1) is connected with the external cylindrical surface elasticity of the planetary gear carrier (7) of first order planetary transmission (6).

3. multistage aerogenerator according to claim 1 is characterized in that: outer cover (4) and air guide sleeve (5) form a circular cone ring body jointly.

4. multistage aerogenerator according to claim 1 and 2 is characterized in that: the central axis (18) of two adjacent vane group and outer cover (4) forms positive angle and negative angle respectively.

5. multistage aerogenerator according to claim 3 is characterized in that: the cross section of blade is an airfoil.

6. multistage aerogenerator according to claim 1 is characterized in that: output shaft (8) can connect generator or other machine for doing work.

7. according to right 1 or 2 described multistage aerogenerators, it is characterized in that: the gear ring of single-stage or multi-stage planetary gear speed changer and the motion of planetary gear carrier are promoted by two groups of fan blades respectively, and sense of rotation is opposite, gear ring and planetary gear carrier are driving wheel, and the planetary transmission central gear is a follower.