A kind of sectional formula fan blade and manufacture method thereof
Technical field
The invention belongs to the wind-driven generator technical applications, particularly a kind of sectional formula fan blade and manufacture method thereof of using at high-power wind-driven generator.
Background technology
At present, the Wind Power Development impetus is swift and violent, and blade is also increasing as important composition component demand amount in the blower fan.In general, the larger blower fan length of blade of wind-power electricity generation acc power is longer, along with horizontal axis wind-driven generator to high-power development, therefore the length of fan blade is also more and more longer, the length of fan blade has reached more than 50 meter, even longer, and needed mould is larger when making fan blade, plant area is large, manufacture difficulty is large, cost is high but large mould takies, and affects the development of manufacturing enterprise.While is larger owing to long fan blade takes up room, so that fan blade transports and stores all very inconvenient.The fan blade that does not also address this problem preferably in the market and manufacture method thereof.
Summary of the invention
For solving above technical deficiency, the invention provides a kind of transportation and sectional formula fan blade and manufacture method thereof easy to assembly.
The present invention is achieved by the following measures:
A kind of sectional formula of the present invention fan blade comprises blade body, and described blade body is divided into two sections that are provided with interface at least, and the interface between the adjacent segment blade body cooperatively interacts and connects.
The guide rail that is respectively arranged with chute and matches with chute on two interfaces that are connected of above-mentioned adjacent two sections blade body; When assembling, described guide rail embeds in the chute and with chute and is connected by bolt.
Above-mentioned blade body hollow, chute and guide rail are trapezoidal and are fixed on the interface; Can increase like this resistance of guide rail in chute, improve fastness.Also having reduced cost also can conveniently fix bolt by hollow space.
The above-mentioned chute that is connected and guide rail bottom are provided with the bolt hole that matches up and down behind guide rail embedding chute, can make things convenient for bolt to fix.
Scribble adhesive on the contact-making surface of above-mentioned chute and guide rail, the fastness that the bonding increase by adhesive connects.
The above-mentioned interface edge that is connected is provided with groove, is filled with filler in the described groove, and the outside is surrounded by outer applying band, and not only increasing fastness does not also affect the attractive in appearance of outward appearance.
A kind of manufacture method of sectional formula fan blade claimed in claim 1 may further comprise the steps:
A. determine hop count and the size of segmentation fan blade, prepare built-in fitting and mould;
B. built-in fitting is embedded in corresponding interface position, adopts the die perfusion moulding;
C. each section fan blade after the moulding is fixing in the interface docking by built-in fitting;
D. with slit, outside encapsulation process between interface.
Preferably, above-mentioned built-in fitting is trapezoidal chute and the guide rail that matches, and in step c, the docking of adjacent segment blade body adopts the minor face of guide rail to slip into gradually chute and the final mode that overlaps from the long limit of chute, and with bolt that guide rail and chute is fixing up and down.
Above-mentioned in step c, the contact-making surface of chute and guide rail is further bonding by adhesive, improves connectivity robustness.
Above-mentioned in steps d, packing material on the gap filling of the interface outside, and the band of fitting outside outside the winding reach the blade integral outer surface smooth.
The invention has the beneficial effects as follows: 1. can segmentation make, do not need larger mould, save factory building and manufacturing cost.2. segmentation is transported and stored, and is more convenient.3. each section assembling is more convenient and assembling is more firm, uses safety.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the perspective view of one section blade body of the present invention.
Fig. 3 be the present invention with Fig. 2 in the adjacent one section blade body perspective view that is connected.
Fig. 4 be Fig. 2 be connected with Fig. 3 joint face connect after structural representation.
Fig. 5 is B-B cross-sectional view among Fig. 4.
Among the figure: 1 root of blade, 2 outer applying bands, 3 blades middle part, 4 vane tips, 5 chutes, 6 bolts hole, 7 guide rails, 8 bolts, 9 adhesives, 10 grooves.
The specific embodiment
A kind of sectional formula fan blade of the present invention comprises blade body, and described blade body is divided into two sections that are provided with interface at least, and the interface between the adjacent segment blade body cooperatively interacts and connects.The guide rail 7 that is respectively arranged with chute 5 and matches with chute 5 on two interfaces that are connected of adjacent two sections blade body; When assembling, described guide rail 7 embeds in the chute 5 and with chute 5 and is connected by bolt 8.
Now further specify with accompanying drawing in conjunction with the embodiments, be divided into three sections as the example explanation take a minute blade body.
As shown in Figure 1, blade body is divided into root of blade 1, blade middle part 3 and vane tip 4.Shown in Fig. 2,3,4,5, blade body hollow, the inclined plane of adjacent two sections blade body ends is provided with chute 5 as interface on the interface among Fig. 2, be provided with the guide rail 7 that matches with chute 5 on the interface among Fig. 3.Chute 5 and guide rail 7 are trapezoidal, and the outward flange of chute 5 sides is higher than the side inward flange, and the inward flange of side is concordant with chute 5 bottoms, and the minor face of chute 5 is all concordant with chute 5 bottoms with long limit outer edge.Chute 5 and guide rail 7 bottoms are provided with bolt hole 6.When assembling, two interfaces connect, and guide rail 7 embeds in the chute 5, and its bolt hole 6 matches simultaneously, again bolt 8 is penetrated bolt hole 6, thus connection guide rail 7 and chute 5.Scribble adhesive 9 on the contact-making surface of chute 5 and guide rail 7, with adhesive 9 it is cemented again after guide rail 7 embeds in the chutes 5.The interface edge that is connected is provided with groove 10, is filled with filler in the groove 10, and the outside is surrounded by outer applying band, the general employing of the filler material identical with the material of blade itself.
The manufacture method of sectional formula fan blade of the present invention may further comprise the steps:
A. determine hop count and the size of segmentation fan blade, prepare built-in fitting and mould;
B. built-in fitting is embedded in corresponding interface position, adopts the die perfusion moulding;
C. each section fan blade after the moulding is fixing in the interface docking by built-in fitting;
D. with slit, outside encapsulation process between interface.
Characteristic according to blade designs blade section, and then the hop count of definite segmentation fan blade and size.Built-in fitting in above-mentioned is trapezoidal chute 5 and the guide rail 7 that matches, and keeps certain quality of fit.The docking of adjacent segment blade body adopts the minor face of guide rail to slip into gradually chute and the final mode that overlaps from the long limit of chute, and with bolt that guide rail and chute is fixing up and down.The contact-making surface coated with adhesive 9 of chute 5 and guide rail 7 further cements by adhesive 9 again.In steps d, packing material on the gap filling of the interface outside, and the band of fitting outside outside the winding.
Above-described embodiment is described to be to specify this patent; though describe by specific term in the literary composition; but can not limit with this protection domain of this patent; being familiar with the personage of this technical field can be after the spirit of understanding this patent and principle change or revises it and reach equivalent purpose; and this equivalence change and modification all should be covered by the claim scope and define in the category.