CN101235795B

CN101235795B - Stretching type traction large wind wheel

Info

Publication number: CN101235795B
Application number: CN2007101647818A
Authority: CN
Inventors: 黄金伦
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-20
Filing date: 2007-12-20
Publication date: 2010-06-02
Anticipated expiration: 2027-12-20
Also published as: CN101235795A

Abstract

Three vanes of a tension drag big wind wheel are all divided into two A and B whose inner and outer stages are coaxia, wherein a big ring C is arranged between the A and the B of the three vanes, three middle axle seats C1 are arranged at C circumference in 120 degrees mutually as an axle seat of the vanes and a key of a drawing line and a reinforce wind wheel. A pin coupled connection rod D 1 isarranged near each middle axle seat of the big ring C and on the pin axle of the lateral side of a big gear D, which makes the wind wheel drive the big gear D and gears a generator gear to drive and generate. The vane has the advantages that firstly, the use of the tension drag big wind wheel is easy to lighten and maximize, secondly, the weight of the big gear isn't added on the wind wheel and three spokes of the big gear is in constant-vane shaped, which is beneficial to rotate the gear, thirdly, an anemoscope is arranged at the front tip of a cone for transmitting mast distance changing signal in advance.

Description

Stretching type traction large wind wheel

The invention belongs to three blade wind-wheel power fields, is a kind of stretching type traction large wind wheel; By the coaxial feather twin-stage blade of interior siphonal lobe, with the big wind wheel of stretching mode strengthening structure, with three connecting rods on the wind wheel (mutually 120 °), affect to be contained in the gearwheel that rotates flexibly on the pylon, gearwheel is meshing generator gear and is driving generating.Do not rotate (save and rotate energy consumption) yet, only decide the core effect for gearwheel, big wind wheel without cabin, step-up gear, main shaft.Wind wheel with tension structure is low weight, can antifatigue load, can make the wind wheel of super-large diameter, improve wind energy efficiency, reduce wind power cost.

Fig. 1, the intra vane A and the outer leafs B that are contained on the wheel hub 1 are coaxial, and roller bearing (seeing Fig. 2 for details) is arranged among the central axis seat C1, and it is flexible to be convenient to feather.Central axis seat C1 is arranged on the circumference of large circle C, mutually every 120 ° of branch three places, and purpose is inside and outside two grade blade A and B, improves rigidity and intensity, layout stretch-draw line and three central axis seat C1 establishing.The partial contour of large circle C, for distinguish view clear for the purpose of, represent that with double dot dash line its cross section is long partially oval shape, i.e. two ends band parabolic curve shape, purpose is for reducing windage; Owing to covered by the removable cover of central axis seat C1, the cross section left end of C be can't see parabolic shape among the figure.

To be Taper Pipe be contained in the left end of wheel hub 1 with flange to Z, 2,3 and right-hand member 4 are stretch-draw line (are high tensile steel circle bar or with specific strength, the high composite fiber round belt of specific stiffness).Also have the stretch-draw line to be located at three mutually between 120 ° central axis seat C1, stretch-draw becomes the equilateral triangle shape.

Fig. 1: A=69m B=49m Φ=236m

The 4th, main shaft is fixed on the pylon 5, and D is a gearwheel, is contained on the main shaft 4 with bearing, and free to rotate, its total weight all acts on: be added on the pylon by main shaft.The gear engagement of gearwheel D and generator G.

Gearwheel D, large circle C (comprising three central axis seat C1), blade A and B make with composite material.Gearwheel D has third gear blade shelves, promptly is the blade effect that the abdomen shelves of gear play fixed pitch again, and the W arrow of Fig. 1 is represented wind direction, and the cross section is the blade shelves lifting of thick wing type, and the boost of changeing for gearwheel clockwise reduces wind wheel tractive load.Gearwheel D is provided with the brake of jaw type open type at generator-near.

Connecting rod D1 is with high strength glass fiber/epoxy resin composite material manufacturing, is connected on the lateral margin of two ends with the wheel lateral margin of pin and gearwheel D and large circle C.Three connecting rod D1 mutually between 120 °) arrange.

Fig. 2 is the outer sleeve C2 of the roller bearing among the central axis seat C1, and the folding mold joint that its two halves are split is shape distortion C3 in the shape of a spiral, is processed into the taper ling cutting machine tool, finish grindes inside and outside circle after two halves close up again.Purpose makes it separately unload, to change or to change roller from sharf.The inner ring C2 of roller is sleeved on the rachis when the system blade in advance.

This programme advantage: 1. be wind wheel large, light be a kind of effective means approach; 2. the weight of gearwheel is not added on the wind wheel, and three spoke shelves of gearwheel have three leaves to decide the effect of blade sheet; 3. saved traditional cabin, step-up gear, anemoscope can be retrofitted in the center at Taper Pipe tip, makes to reach to send the feather signal in advance.

Description of drawings:

Fig. 1 is the stretching type traction large wind wheel simplified side view.

Fig. 2 is the roller bearing outer ring spirality curved surface folding mold joint stereogram in the central axis seat.

Claims

1. stretching type traction large wind wheel, comprise main shaft, pylon, wheel hub, blade and generator, main shaft and pylon are fixed, wheel hub is rotatably installed on the main shaft, blade installation is on wheel hub, it is characterized in that: by central axis seat and coaxial being formed by connecting of outer leafs (B), three groups of blades are mutually every 120 ° of layouts by intra vane (A) for described blade; Described central axis seat (C1) is mutually on 120 ° of circumference that are separately positioned on large circle (C); Front-end and back-end at described wheel hub are equipped with Taper Pipe and gearwheel respectively, between the two ends of the both sides, front and back of described central axis seat (C1) and wheel hub and be equipped with the stretch-draw line between three central axis seats (C1); Generator is installed on the pylon, and the gear of this generator and the engagement of described gearwheel have connecting rod to be connected to gearwheel on described large circle, 120 ° of layouts between three these connecting rods are mutual.

2. stretching type traction large wind wheel according to claim 1 is characterized in that: establish anemoscope at described Taper Pipe front tip.

3. stretching type traction large wind wheel according to claim 1, it is characterized in that: the outer sleeve (C2) of the roller bearing in the described central axis seat (C1) is closed up by two halves and constitutes, the folding mold joint that these two halves are split is shape distortion (C3) in the shape of a spiral, be processed into the taper ling cutting machine tool, finish grind inside and outside circle after two halves close up again.

4. stretching type traction large wind wheel according to claim 1 is characterized in that: it is the third gear blade shelves that the abdomen shelves of gear play the blade effect of fixed pitch again that described gearwheel is provided with.