CN201884199U

CN201884199U - Receiving and converting device of kinetic wind energy

Info

Publication number: CN201884199U
Application number: CN2010206297273U
Authority: CN
Inventors: 陆中源
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-29
Filing date: 2010-11-29
Publication date: 2011-06-29
Anticipated expiration: 2020-11-29

Abstract

A receiving and converting device of kinetic wind energy belongs to the technical field of new energy sources, and is a wind turbine capable of being mounted on a holder. The receiving and converting device comprises a hub (2), a rim (4), wind receiving blades (5), and stay wires (3) fixing the hub (2) and the rim (4) integrally. The blades (5) can be respectively mounted on the rim (4) and the stay wires (3). The receiving and converting device can also be a 'stay-wire wind turbine' as the blades are mounted on the 'stay-wire wheel'. Unit weight bearing capacity and receiving and converting rate for kinetic wind energy are closer to ideal values. Rough research and estimation on large-sized wind motors show that starting wind speed is lower, weight is lower, diameter is reduced, cost is reduced greatly and wind energy utilization factor is increased greatly when the nominal power of the stay-wire wind turbine as compared with a traditional three-blade wind turbine is the same as that of the three-blade wind turbine.

Description

The kinetic energy receiving converter

Technical field

The invention relate to a kind of with kinetic energy receive be converted to mechanical rotation can device, belong to the cleaning new energy technical field.

Background technique

At present, what the most generally be used for wind-power electricity generation receives the device that is converted to the mechanical rotation energy with kinetic energy, is mounted in three impeller assemblys on the pto.This three impeller assembly can be described as the simplest a kind of wind wheel of outward appearance, but it receives kinetic energy the efficient that is converted to the mechanical rotation energy, be kinetic energy utilization factor (rotation that wind wheel obtains can with the ratio of kinetic energy by wind wheel), for big-and-middle-sized three blade wind wheels, generally only have 30%～40%, and three blade wind power costs are higher than water power or coal at present, production has than the great dynamics subsidy so countries nowadays government is to wind-powered electricity generation, to promote the development of wind-powered electricity generation clean energy resource.

Summary of the invention

The invention provides a kind of kinetic energy receiving converter, and it is the wind wheel that can be installed on the fixing frame, includes: wheel hub, wheel rim, the blade and make wheel hub and backguy that wheel rim is fixed as one of giving a dinner for a visitor from afar.Blade can be installed in respectively in wheel rim and the backguy.Like this, in fact the blade quantity of giving a dinner for a visitor from afar can reach more than 80, can be covered with the front and back inner and outer surface of whole wind wheel in all directions substantially, receives the optimal effectiveness that is converted to wind wheel rotation energy thereby reach kinetic energy.Owing to be " wire-drawing wheel " that blade has been installed, so can be referred to as " backguy wind wheel ".To coarse investigation of large-scale wind electricity machine and estimation, the backguy wind wheel is three impeller assemblys relatively through this paper author, and during same nominal power, starting wind velocity is low, and is in light weight, and diameter is less, and power coefficient increases considerably.Develop and spread " backguy wind wheel " generating replaces three blade wind wheels, will make to utilize wind energy resources to increase, and cost reduces significantly, and global wind-powered electricity generation output may surpass water power output very soon.

Description of drawings

Fig. 1 is front (windward side) sketch of backguy wind wheel.This figure has only drawn the blade 5 of giving a dinner for a visitor from afar, wheel rim 4, backguy 3, wheel hub 2 and the transmission shaft 1 on the wind wheel periphery; To other multiple component, for example be installed in blade in the backguy etc. and then omit and do not draw, overstocked and allow the people not see to avoid the drawing lines.

Fig. 2 is the partial view of Fig. 1.

Fig. 3 is this backguy wind wheel side diagrammatic cross-sectional view.

Fig. 4 is the S partial sectional view of Fig. 3.

Fig. 5 is the B-B sectional drawing of Fig. 4.

Fig. 6 is the cross-section profile of two adjacent blades.

Fig. 7 is the partial sectional view of this backguy wind wheel generator.

Fig. 8 is the K partial sectional view of Fig. 7.

Fig. 9 is the local revolved view of the W of Fig. 3.

Figure 10 is the X partial sectional view of Fig. 2.

Figure 11 is small-sized backguy wind wheel wheel rim section partial sectional view.

Embodiment

From Fig. 1, Fig. 2 and Fig. 3 as seen, this is a kind of wind wheel that can be installed on the fixing frame, includes wheel hub 2, wheel rim 4, the blade 5 and make wheel hub 2 and backguy 3 that wheel rim 4 is fixed as one of giving a dinner for a visitor from afar.Structure mechanics analysis compares material, outside dimension, axial dimension, various different structure wheels that radially bearing capacity is all identical with axial bearing capacity as can be known, and the weight of wire-drawing wheel can appropriate design get minimum.Here it is, and bicycle quick mainly is the reason of wire-drawing wheel.Can prove that the backguy wind wheel all is bordering on the possibility ideal value for the unit weight bearing capacity and the reception conversion ratio of kinetic energy.

From Fig. 1, Fig. 2 and Fig. 3 as seen, blade 5 is installed in respectively in wheel rim 4 and the backguy 3.That is to say, blade 5 can be contained in wheel rim 4 and the backguy 3 or both one of on.In this wind wheel, backguy 3 is distributed in each 20 of wind wheel front and backs, and the backguy blade 5 that is installed in the backguy 3 has 40; Other has 40 wheel rim blades 5 is to be installed in outwardly on the wheel rim 4.In addition, the backguy wind wheel there is anti-corrosion treatment certainly.

From Fig. 2, Fig. 6 and Fig. 8 as seen, blade 5 edges of backguy wind wheel are hinged with and can order about the drag-line 8 that blade 5 rotates, and this drag-line 8 is by drag-line controller 6 controls that are installed on the wheel hub 2.Drag-line 8 in the wheel rim 4 shown in Figure 2 is to be positioned at backguy wind wheel front.Drag-line 8 shown in Figure 6 is that the position pulls the line wind wheel back side.Drag-line 8 is clamped by bolt 14 in the hinged place.The existence of drag-line 8 and drag-line controller 6 makes that in that wind speed is excessive maybe need brake wind wheel the time, the wind energy that blade 5 receives can reach corresponding minimum, to guarantee associated safety.

From Fig. 2 and Fig. 6 as seen, be connected with the spring 9 that can make blade 5 be subjected to rotating torsion on the blade 5 of backguy wind wheel.Obviously, because the existence of spring 9, wind speed is during greater than setting value, and blade 5 can overcome the constraint of spring 9 and rotate, and both can reduce minimum starting wind velocity, can improve the Security of whole wind wheel again.Obviously, a blade will be connected with a spring 9 at least, and promptly spring 9 numbers are at least half of the number of blade.

From Fig. 6 as seen, the center of gravity that blade 5 is passed in blade 5 rotating shafts (backguy 3 or sharf 13); Blade 5 forward positions are to partial Upwind face 17 areas between blade 5 rotating shafts (backguy 3 or sharf 13), and are back along partial Upwind face 17 areas that arrive between blade 5 rotating shafts (backguy 3 or sharf 13) less than blade 5.Like this, under blast, when 5 pairs of backguys 3 of blade or sharf 13 produce pressure, also be subjected to the moment of torsion of corresponding rationally little (tension strength to spring 9 and drag-line 8 requires little).Under the acting in conjunction of wind-force, blade 5 gravity, spring 9 pulling force, friction and drag-line 8 pulling force, the angle reasonable change at any time of facining the wind of blade 5.Fig. 6 has specifically represented a kind of structure of blade 5: accompany the stiffening plate 16 that some block gaps distribute between windward side 17 and the leaf back 15, to increase the strength-weight ratio of blade 5; Leaf back 15 is installed blade 5 rotating shafts place opening and opening clamping plate 18.During assembling, after backguy 3 inserted from this opening, put cushion block into and seal clamping and get final product with opening clamping plate 18.This structure is convenient to the installation of big-and-middle-sized blade especially.

Obviously, the same with traditional three blade wind wheels, the windward side 17 of backguy wind wheel blade 5 is helicoids.

By Fig. 2 and Figure 10 as seen, blade 5 terminations are equipped with and can be reduced the rolling bearing 12 that blade 5 rotates frictional resistances, are with support tube 23 in the backguy 3.Like this, the wearing and tearing that blade 5 frequent swings produce have been reduced.

From Fig. 2 as seen, backguy tightener 7 is arranged in the backguy 3, to be used for the assembling of backguy wind wheel (particularly big-and-middle-sized wind wheel).Obviously, backguy 3 can be stay cord or pull bar.On market, often there are stay cord tightener or Drag link tightener device to sell.

From Fig. 7 and Fig. 8 as seen, on the transmission shaft 1 He on wheel hub 2 hole walls steel ball groove 20 is arranged all, many steel balls 21 are housed in the steel ball groove 20.Like this, at generator 19 high tower places, when transmission shaft 1 loading and unloading backguy wind wheel, wind wheel rolls on transmission shaft 1 by steel ball 21.This greatly reduces the difficulty of these loading and unloading for large-scale wind wheel.Steel ball groove 20 can also serve as keyway, so that the round steel key bar 22 of transmitting torque to be installed.

From Fig. 1, Fig. 2 and Fig. 9 as seen, wheel rim 4 is ring-type truss that at least two rings 10 and link 11 are formed.In general, ring 10 is better with the steel pipe manufacturing.For on the big-and-middle-sized backguy wind wheel with the link 11 of its axis normal, it preferably has the effect of blade and rational windward side is arranged and the angle that facings the wind, promptly its section configuration as shown in Figure 5, to improve " wind energy transformation rate ".

In addition, from Figure 11 as seen, connecting sleeve 28 is exactly that 11, two rings 10 of link in the wheel rim 4 and connecting sleeve 28 are tightened by special bolt 26 and nut 27 and are one, and blade 5 is hinged and spacing by nut 24 by cartridge clip 25 and special bolt 26.This is the structure that is particularly suitable for small-sized backguy wind wheel.

Claims

1. kinetic energy receiving converter, it is the wind wheel that can be installed on the fixing frame, it is characterized in that: include wheel hub (2), wheel rim (4), the blade of giving a dinner for a visitor from afar (5) and make wheel hub (2) and backguy (3) that wheel rim (4) is fixed as one.

2. kinetic energy receiving converter according to claim 1 is characterized in that: blade (5) is installed in respectively in wheel rim (4) and the backguy (3).

3. kinetic energy receiving converter according to claim 2 is characterized in that: blade (5) edge is hinged with and can orders about the drag-line (8) that blade (5) rotates, and this drag-line (8) is by drag-line controller (6) control that is installed on the wheel hub (2).

4. kinetic energy receiving converter according to claim 2 is characterized in that: be connected with the spring (9) that can make blade (5) be subjected to rotating torsion on the blade (5).

5. kinetic energy receiving converter according to claim 2 is characterized in that: the center of gravity that blade (5) are passed in blade (5) rotating shaft; Blade (5) forward position is to partial Upwind face (17) area between blade (5) rotating shaft, and is back along partial Upwind face (17) area that arrives between blade (5) rotating shaft less than blade (5).

6. kinetic energy receiving converter according to claim 2 is characterized in that: the windward side (17) of blade (5) is a helicoid.

7. kinetic energy receiving converter according to claim 2 is characterized in that: rolling bearing (12) is equipped with in blade (5) termination, is with support tube (23) in the backguy 3.

8. kinetic energy receiving converter according to claim 1 is characterized in that: backguy tightener (7) is arranged in the backguy (3).

9. kinetic energy receiving converter according to claim 1 is characterized in that: transmission shaft (1) upward and on wheel hub (2) hole wall all has steel ball groove (20), and steel ball (21) is housed in the steel ball groove (20).

10. kinetic energy receiving converter according to claim 1 is characterized in that: wheel rim (4) is the ring-type truss that at least two rings (10) and link (11) are formed.