CN103692660A - Method and device for preparing pre-buried blade on post-punching blade die - Google Patents
Method and device for preparing pre-buried blade on post-punching blade die Download PDFInfo
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- CN103692660A CN103692660A CN201310686126.4A CN201310686126A CN103692660A CN 103692660 A CN103692660 A CN 103692660A CN 201310686126 A CN201310686126 A CN 201310686126A CN 103692660 A CN103692660 A CN 103692660A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/36—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and impregnating by casting, e.g. vacuum casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
- B29L2031/082—Blades, e.g. for helicopters
- B29L2031/085—Wind turbine blades
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Abstract
The invention discloses a method and a device for preparing a pre-buried blade on a post-punching blade die. The device comprises a post-punching blade die and a pre-burying tool, wherein the post-punching blade die is divided into a die root region and a blade forming region; the pre-burying tool is fixed in the die root region through a connecting device and is level with the edge of the die root, and is integrally assembled with the post-punching blade die. The die root region is 300mm-500mm wide. The method comprises the following steps: fixing the pre-burying tool in the die root region by the connecting device; then, laying layers of glass fiber cloth in the pre-burying tool toward the blade forming region; then, placing a pre-burying bolt sleeve corresponding to a pre-burying tool positioning hole, and then laying layers of glass fiber cloth; curing for forming after vacuumizing and pouring resin by a conventional method; demoulding; and detaching the pre-burying tool, thus forming the pre-buried blade. The device does not occupy large space, is convenient to assemble and low in cost and saves resources. The method is easy to operate, and dies of the pre-buried blade and the post-punching blade are freely exchanged, so that the method is beneficial to popularization and application.
Description
Technical field
The present invention relates to a kind of method and device of blade of wind-driven generator, be specifically related to a kind of method and device of making pre-buried blade on rear punching blade mold.
Background technology
In wind-powered electricity generation industry, the structural design of blade of wind-driven generator, especially blade root end structure design mainstream technology and divide two kinds at present, and they need to complete respectively on two kinds of different moulds.
A kind of is rear punching blade, in leaf production process, the surplus that fiber cloth is stretched out to 50-150mm mould blade root to blade product zone extension is laid, after the blade forming demoulding, re-use puncher and will after the cutting of blade root surplus, carry out axial hole and radial hole location drilling, then radial bolts is arranged in radial hole, axial bolts one end with double thread is screwed into radial bolts, the other end is connected with wind energy conversion system wheel hub, and blade is fixed simultaneously.This just requires the mould of blade also must retain certain surplus outside blade root product zone, can guarantee the production of blade, and conventionally retaining surplus is 300-500mm;
Another kind is pre-buried blade, and it is to be with female pre-embedded bolt cover to be placed in advance in the middle of blade glass-fiber-fabric by pre-buried tool locating, and all glass-fiber-fabrics are laid the laying of all aliging with pre-buried frock, then according to art of vane moulding.After the blade demoulding, the boring that no longer includes the cutting of blade root surplus and axial hole, radial hole is processed, and can obtain the blade of pre-embedded bolt cover.Axial bolts one end with double thread is screwed in pre-embedded bolt cover, and the other end is connected with wind energy conversion system wheel hub, and blade is fixed.Because cutting and drilling operation without surplus, such blade mold blade root is without surplus, and mould starting point is blade root original position.
Because rear punching and pre-buried technology require different to matching used mould separately, rear punching blade mold itself is punching blade product after manufacturing, can not be as producing pre-buried blade product, and pre-buried blade laying starting point is that blade starting point causes rear punching blade mold blade root length problem more than needed to solve, so, do not possess the condition of producing pre-buried blade production and application.
Existing pre-buried blade is all could manufacture out by special pre-buried mould; To so far, also do not see and have the successful report of making pre-buried blade on rear punching blade mold.
Summary of the invention
In order to solve the defect existing in above-mentioned prior art, the object of this invention is to provide a kind of rear punching blade mold and pre-buried frock can being assembled into one, on rear punching blade mold, make the method for pre-buried blade, and the device of realizing the method.
To achieve these goals, the present invention adopts following technical scheme, a kind of device of making pre-buried blade on rear punching blade mold, and it comprises rear punching blade mold and pre-buried frock; Its feature is: the blade mold that punches is afterwards divided into mould root area and blade forming region; Pre-buried frock is fixed in described mould root area by prefabricated jockey and is concordant with the edge of its mould root, is assembled into one with rear punching blade mold; The width of described mould root area is 300-500mm.
Above-mentioned pre-buried frock is double-T structure, comprises a large T-shaped beam and a little T-shaped beam, between crossbeam corresponding to large T-shaped beam and little T-shaped beam and between corresponding vertical beam, all by brace summer, is welded and fixed; With the beam face in little T-shaped beam outside be sticked a radian under semicircle ring flange, at the periphery of semicircle ring flange, be evenly equipped with some locating holes; Two ends at large tee girder crossbeam, are respectively fixed with square opening steel plate; The free end of large tee girder vertical beam is fixed with perforate rectangular steel plates; The two ends of described little T-shaped beam crossbeam and middle-end and vertical beam free end are welded and fixed by square bar pad with respect to the position of the circle centre position of 0 °, 90 °, 180 °, described semicircle ring flange and semicircle ring flange.
Above-mentioned brace summer comprises horizontal beam and cant beam, wherein horizontal beam is 4,3 are connected between described large T-shaped beam and the corresponding crossbeam two ends and middle-end of little T-shaped beam, and 1 is connected in vertical beam below that large T-shaped beam is corresponding with little T-shaped beam and parallel with the horizontal beam of described crossbeam middle-end; Cant beam is 3, and 2 are connected on the horizontal beam of crossbeam middle-end and the place, diagonal angle between both ends horizontal beam with 45 °, 135 ° horizontal weldings respectively; One end of 1 is welded on the joint of the horizontal beam of perpendicular beam below, the vertical beam lower end of described large T-shaped beam, and the other end is welded on described little T-shaped beam crossbeam middle-end and horizontal beam joint.
The pore size of some locating holes is identical, and the angle between adjacent 2 locating holes is 3-5 °; At each locating hole, be all fitted with bolt.
Above-mentioned jockey comprises steel cross sectional plates, conformal plate and some gussets; Wherein, the rectangular slab that steel cross sectional plates is right-angle side for one side semicircular in shape inner arc, three limits; The semicircle radian of inner arc coincide with the radian of described rear punching blade mold, and 2 vertical right-angle sides be respectively 340mm apart from the distance at semicircle inner arc two ends, and all paracentral distances of the extremely semicircle inner arc of horizontal sides are 390mm; The thickness of this steel cross sectional plates is 10-20mm; Conformal plate is rectangular slab, and its width is 150-200mm, is shorter in length than the girth of this mould root area; This conformal plate is attached at the outer surface of mould root installation region, the center superposition of its length direction center and mould root installation region periphery; The outward flange of conformal plate is concordant with the semicircle inner arc of the steel cross sectional plates of joining with mould root area and be welded and fixed; On the plate face at the semicircle inner arc two ends of steel cross sectional plates, respectively offer fixing hole, and the nut with the screw rod of certain length is installed on fixing hole, steel cross sectional plates opposite side again mounting nuts fix this with the nut of screw rod, thereby fixing in steel cross sectional plates; In the semicircle inner arc of steel cross sectional plates bottom, be directly welded and fixed a nut; Gusset is several, and it is shaped as isosceles right triangle; Some described triangle gussets are distributed in the angle of described steel cross sectional plates outer wall and described conformal plate outer wall, and described cross sectional plates and described conformal plate link are welded and fixed, and the angle between adjacent 2 triangle gussets is 30 °.
The periphery of above-mentioned semicircle ring flange is positioned at the joint in mould root area and blade forming region; The under shed square plate at large tee girder crossbeam two ends is stuck on the fixing nut in the semicircle inner arc of steel cross sectional plates two ends; The nut bore heart being welded and fixed of the semicircle inner arc of the Kong Xinyu steel cross sectional plates bottom of the free-ended lower perforate rectangular steel plates of vertical beam of large tee girder is corresponding; On its nut, be provided with the lock-screw of pre-buried frock and steel cross sectional plates locking use.
Above-mentioned lock-screw is cylinder, and diameter is 30-36mm; Its middle part be one with the disk of cylinder concentric, this disk diameter is 16-20mm; On the cylinder of disk one side, have cross-hole; The cylinder of disk opposite side is a boss near disk place; The diameter of boss is 30-40mm, and height is 15-60mm; Periphery in boss outside is provided with screw thread.
To achieve these goals, the present invention also provides the method for utilizing said apparatus to make pre-buried blade, and it comprises rear punching blade mold and pre-buried frock; Its operating procedure is as follows:
1) at root area to the root edges 300-500mm place of this rear punching blade mold of described rear punching blade mold, described pre-buried frock is installed;
2) assemble pre-buried frock; This pre-buried frock comprises by a large T-shaped beam and a little T-shaped beam and being arranged side by side, and is welded and fixed and is integrated therebetween by brace summer; The square bar pad arranging by its crossbeam two ends and vertical beam lower end in the outside of little T-shaped beam and a radian under semicircle ring flange be welded and fixed; The center of this semicircle ring flange to the vertical range of periphery than the center of described mould root area the little 3mm of vertical range to its periphery, at the periphery of semicircle ring flange, be evenly equipped with some locating holes; The pore size of locating hole is identical, and the angle between adjacent 2 locating holes is identical, is 3-5 °.A under shed square steel plate is respectively housed at the crossbeam two ends of large T-shaped beam, and a lower perforate rectangular steel plates is equipped with in the vertical beam bottom of large T-shaped beam;
3) prefabricated and installing and connecting apparatus; This jockey is divided into conformal plate, steel cross sectional plates and gusset; Wherein, conformal plate is rectangular slab, and its width is narrower than the width of described mould root area, is shorter in length than the girth of described mould root area; Conformal plate is attached on the arcwall face of described step 1) mould root area outer end to the mid point of conformal plate on its length direction and the center superposition of described arcwall face periphery; Described steel cross sectional plates is the rectangular slab that semicircular in shape inner arc, three limits are right-angle side on one side, and its thickness is 10-20mm; The semicircle radian of inner arc and the radian of described rear punching blade mold coincide; The arc-shaped side of the semicircle inner arc of described steel cross sectional plates and end, described conformal buttress portion region is welded and fixed, then along 0 °, 180 °, the peripheral panels face of this semicircle inner arc, have fixed via, the screw rod end of one long bolt nut is through fixed via, at steel cross sectional plates opposite side, by another nut, this long bolt is fixed through one end of fixed via again, thereby be fixed in steel cross sectional plates; In 90 °, the bilge ways face of this semicircle inner arc, be directly welded and fixed a nut; Described gusset is several, and it is shaped as isosceles right triangle; Some described triangle gussets are distributed in the joint of described steel cross sectional plates semi arch outer wall and described conformal plate outer wall; Angle between adjacent 2 triangle gussets is 30 °;
4) by step 2) pre-buried frock be packed in the mould root area described in step 1); Concrete steps are: the starting point place that first the arcwall face vertical top of the semicircle ring flange of pre-buried frock is loaded on to described blade forming region; Respectively the semicircle opening of described large tee girder crossbeam two ends under shed square steel plate is stuck in again on the hold-down nut of 0 °, 180 ° of steel cross sectional plates periphery described in step 4) and the center of circular hole alignment step 4 of the lower perforate rectangular steel plates of vertical beam free end welding) the nut bore heart of 90 ° of described steel cross sectional plates, lock-screw is installed respectively within it, is tightened fixing; 5) by semicircle ring flange described in step 3) towards the one end in described blade forming region towards the some layers of lay glass fabric in this blade forming region, thickness is 15-20mm; On its laying, place the pre-embedded bolt cover identical with the some bolt quantity of described pre-buried frock, pre-embedded bolt overlaps the root described locating hole place of aliging; In described locating hole, be screwed into bolt in pre-embedded bolt cover, by the tight secure fit of screw thread; Then, repave and put the some layers of glass fabric, thickness is 15-20mm;
6) on the glass fibre layer of cloth of laying in step 5), arrange the auxiliary material of water conservancy diversion and diversion pipeline, after whole laying product area is wrapped vacuum and is vacuumized, adopt vacuum assisted resin pouring and forming process to carry out after product perfusion, according to pre-buried blade curing process and bonding matched moulds technique, carry out pre-buried blade forming;
7) demoulding; Concrete operations are: first back out described bolt, dismantle described pre-buried frock, described pre-embedded bolt cover is embedded in the blade root place of pre-buried blade product equably, is shaped to described pre-buried blade.
Owing to having adopted technique scheme, beneficial effect of the present invention is as follows: 1) pre-buried frock is fixed on to rear punching blade mold butt, can mounts and dismounts; If produce pre-buried blade, just it can be installed on rear punching blade mold and produce pre-buried blade, need not make again special pre-buried blade mold; If punching blade after producing just disassembles it, directly produce rear punching blade; Same set of blade mold can be produced the blade of pre-buried blade root, also can produce the blade of rear punching blade root; For identical aerodynamic configuration blade, different blade root types is applicable too.It can not only comprehensive satisfied different clients different requirements, can also re-use a large amount of idle blade mold resources, thereby saved in a large number blade mold, make and pre-buried blade production cost, shortened the production cycle.Changed and in industry, existing rear punching blade mold cannot be converted to the present situation that pre-buried blade mold is used.2) in the junction of conformal plate and steel cross sectional plates, the region from 0 ° to 180 °, every 30 ° are welded a triangle gusset, have effectively guaranteed the integral rigidity of jockey.3) use steel cross sectional plates can reduce the variation of the blade root circularity of pre-buried blade product, has improved the stability of quality.
Accompanying drawing explanation
Fig. 1 is integral assembling structure schematic diagram of the present invention.
Fig. 2 is the structural representation of pre-buried frock 2 in Fig. 1.
Fig. 3 is the structural representation of rear punching blade mold 1 in Fig. 1.
Fig. 4 is the link position schematic diagram of jockey 4 in Fig. 1.
Fig. 5 is lock-screw perspective view.
The specific embodiment
The present invention is a kind of method and apparatus of making pre-buried blade on rear punching blade mold.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, on rear punching blade mold, make the device of pre-buried blade, be provided with rear punching blade mold 1, pre-buried frock 2, jockey 3, bolt 4, gusset 5, lock-screw 6, nut 7, blade root installing zone 8, blade product zone 9, conformal plate 10, steel cross sectional plates 11, locating hole 12, pre-buried blade product 13, pre-buried tooling bracket 14, semicircle ring flange 15, square connecting plate 16, semicircle under shed steel plate 17 and lower perforate rectangular steel plates 18.
Wherein, rear punching blade mold 1 is by cross section, to be that semicircle is to the heterotypic die space region of approximate semiellipse gradual change from starting to terminal, according to its regional section function, be divided into blade root installing zone 8 and blade product zone 9, blade root installing zone 8 and blade product zone 9 be take blade product original position 0 start line be boundary line delimitation.
The entire length of blade root installing zone 8 is 300-500mm, is the beamhouse operation region that blade root on rear punching blade mold is held reserved production blade product, the die cavity region that cross section is semicircle; Blade product zone 9 is forming areas of making pre-buried blade product 13.
Pre-buried frock 2 is fixed on mould root area by prefabricated jockey 3, is assembled into one with rear punching blade mold 1.
Wherein, pre-buried frock 2 is arranged with three parts, is respectively pre-buried tooling bracket 14, semicircle ring flange 15 and bolt 4.
Double-T shaped girder construction, comprises a large T-shaped beam and a little T-shaped beam, between crossbeam corresponding to large T-shaped beam and little T-shaped beam and between corresponding vertical beam, all by brace summer, is welded and fixed; Brace summer is divided into horizontal beam and cant beam, wherein horizontal beam is 4,3 are connected between large T-shaped beam and the corresponding crossbeam two ends and middle-end of little T-shaped beam, and 1 is connected in vertical beam below that large T-shaped beam is corresponding with little T-shaped beam and parallel with the horizontal beam of described crossbeam middle-end; Cant beam is 3, and 2 are connected on the horizontal beam of crossbeam middle-end and the place, diagonal angle between both ends horizontal beam with 45 °, 135 ° horizontal weldings respectively; One end of 1 is welded on the joint of the horizontal beam of perpendicular beam below, the vertical beam lower end of large T-shaped beam, and the other end is welded on little T-shaped beam crossbeam middle-end and horizontal beam joint.
The center superposition of the center of little T-shaped beam crossbeam and large T-shaped beam crossbeam, the two ends of little T-shaped beam crossbeam are shorter in length than the length at the crossbeam two ends of large T-shaped beam, each short 400-450mm; The free end of crossbeam two ends, middle-end and the vertical beam of little T-shaped beam is respectively by square connecting plate 16 position relative with semicircle ring flange 15,0 of semicircle ring flange 15 °, 90 °, 180 ° and the position of circle centre position by square bar pad, be welded and fixed.
The radian of semicircle ring flange 15 under, at the periphery of semicircle ring flange 15, be evenly equipped with some locating holes; The pore size of some locating holes is identical, and the angle between adjacent 2 locating holes 12 is 3-5 °.
0 °, 90 °, 180 °, periphery and the circle centre position of semicircle ring flange 15 are affixed by lock-screw and four square connecting plates 16 respectively, little T-shaped beam welds with four square connecting plates 16 again, makes pre-buried tooling bracket 14 be assembled into as a whole with semicircle ring flange 15.Between lock-screw and square connecting plate 16, leave a certain amount of control gap, the making requirement that is mainly used to regulate pre-buried frock 2 the location starting point of its semicircle ring flange 15 on rear punching blade mold 1 and angle after navigating on jockey to meet pre-buried blade product 13; Wherein, the diameter of lock-screw used is 36mm; Its middle part is 80mm with the disk diameter of cylinder concentric; Boss diameter near disk place is 40mm, and height is 58mm.
Jockey used comprises steel cross sectional plates 11, conformal plate 10 and some gussets 5; Wherein, the rectangular slab that steel cross sectional plates 11 is right-angle side for one side semicircular in shape inner arc, three limits; The semicircle radian of inner arc coincide with the radian of rear punching blade mold 1, and 2 vertical right-angle sides be respectively 340mm apart from the distance at semicircle inner arc two ends, and all paracentral distances of the extremely semicircle inner arc of horizontal sides are 390mm.
Wherein, the thickness of steel cross sectional plates 11 is 10-20mm; Conformal plate 10 is rectangular slab, and its width is 150-200mm, is shorter in length than the girth of mould root area; This conformal plate 10 is attached at the outer surface of this mould root installation region, the center superposition of center and mould root installation region periphery on its length direction; The outward flange of conformal plate 10 is concordant with the semicircle inner arc of steel cross sectional plates 11 joining with mould root area and be welded and fixed; On the plate face at the semicircle inner arc two ends of steel cross sectional plates 11, respectively offer fixing hole, and install with a long bolt nut on fixing hole, steel cross sectional plates opposite side again mounting nuts fix this with the nut of screw rod, thereby fixing in steel cross sectional plates; In the semicircle inner arc of steel cross sectional plates bottom, be directly welded and fixed a nut; Gusset 5 is several, and it is shaped as isosceles right triangle; Some triangle gussets 5 are distributed in the joint of steel cross sectional plates 11 outer walls and conformal plate 10 outer walls; Angle between adjacent 2 triangle gussets 5 is 30 °.
Pre-buried frock 2 be positioned at this mould root area and joint, blade forming region with the affixed semicircle ring flange of little tee girder 15 and junction, mould root area; The under shed square plate 17 at large tee girder crossbeam two ends is stuck on the hold-down nut 7 at semicircle inner arc two ends of steel cross sectional plates 11; The nut the being welded and fixed 7 hole hearts of the Kong Xinyu steel cross sectional plates 11 semicircle inner arc bottoms of the large free-ended lower perforate rectangular steel plates of tee girder vertical beam are corresponding; On its nut 7, be provided with the lock-screw 6 with steel cross sectional plates 11 locking use by pre-buried frock 2.
This lock-screw 6 is cylinder, and diameter is 30mm, and in addition, diameter also can be 30-36mm; Its middle part be one with the disk of cylinder concentric, this disk diameter is 80mm; On the cylinder of disk one side, have cross-hole; The cylinder of disk opposite side is a boss near disk place; The diameter of boss is 34mm, and in addition, the diameter of boss also can be 30-40mm, and height is 17mm, and in addition, the height of lock-screw also can be 15-60mm; Periphery in this boss outside is provided with screw thread.
Pre-buried frock 2 in use, is loaded onto bolt 4 in each locating hole 12 on ring flange.By each bolt 4, the pre-embedded bolt cover of pre-buried blade product 13 is even, pre-buried, be fixed to behind the position corresponding with bolt 4 one-body molded with its glass fabric of laying up and down.The position of the pre-embedded bolt cover of pre-buried blade product and angle rely on pre-buried frock 2 to guarantee, more accurate.
Pre-buried frock 2 is navigated on rear punching blade mold 1 by jockey 3, become an overall structure, can guarantee that pre-buried frock 2 is in company with the synchronous generation deformation of rear punching blade mold 1, avoided existing pre-buried tool locating on existing rear perforating mold steelframe time, because of factors such as its mould steelframe rigidity are not enough, mould glass steel expands with heat and contract with cold, and directly affect the drawback of the stability that pre-buried frock used, thereby greatly improved the quality of producing pre-buried blade product on rear punching blade mold.
Second technical scheme of the present invention, is to utilize above-mentioned shaped device to make the method for pre-buried blade, comprises that step is as follows:
1) rear punching blade mold is divided into mould root area and blade forming region; Wherein, the root that mould root area is positioned at blade forming region is to this rear punching blade mold root edges 300-500mm place; Pre-buried frock is installed herein;
2) assemble pre-buried frock; This pre-buried frock comprises by a large T-shaped beam and a little T-shaped beam and being arranged side by side, and is welded and fixed and is integrated therebetween by brace summer; The square bar pad arranging by its crossbeam two ends and vertical beam lower end in the outside of little T-shaped beam and a radian under semicircle ring flange be welded and fixed, in the position of square bar pad, be also equipped with trip bolt; Center by this semicircle ring flange is identical to the vertical range of its periphery with the center of described mould root area to the vertical range of periphery, at the periphery of semicircle ring flange, is evenly equipped with some locating holes; The pore size of locating hole is identical, and the angle between adjacent 2 locating holes is identical, is 3-5 °;
A under shed square steel plate is respectively housed at the crossbeam two ends of large T-shaped beam, and a lower perforate rectangular steel plates is equipped with in the vertical beam bottom of large T-shaped beam;
3) prefabricated and installing and connecting apparatus; This jockey is divided into conformal plate, steel cross sectional plates and gusset; Wherein, conformal plate is rectangular slab, and its width is narrower than the width of described mould root area, is shorter in length than the girth of described mould root area; The mounting means of conformal plate is: conformal plate is attached on the arcwall face of described step 1) mould root area outer end, and concordant with mould root area end face, the mid point of conformal plate on its length direction and the center superposition of arcwall face periphery; Steel cross sectional plates is the rectangular slab that semicircular in shape inner arc, three limits are right-angle side on one side, and the radian of the radian of semicircle inner arc and described rear punching blade mold is identical; The thickness of steel cross sectional plates is 10-20mm; The mounting means of steel cross sectional plates is: the arc-shaped side of the semicircle inner arc of steel cross sectional plates and end, described conformal buttress portion region is welded and fixed, then along 0 °, 180 °, the peripheral panels face of this semicircle inner arc, have fixed via, and the nut with certain length screw rod is installed on fixed via, steel cross sectional plates opposite side again mounting nuts fix this with the nut of screw rod, thereby be fixed in steel cross sectional plates; In 90 °, the bilge ways face of this semicircle inner arc, be directly welded and fixed a nut; Gusset is provided with several, is distributed in the joint of steel cross sectional plates semi arch outer wall and conformal plate outer wall, and between adjacent 2 triangle gussets, angle is apart 30 °; Gusset be shaped as isosceles right triangle, the right angle length of side is 180mm, hypotenuse is long is 254mm.Leg-of-mutton two right-angle sides are affixed with steel cross sectional plates edge on one side, and another side and mould root area outer rim are affixed; 4) by step 2) pre-buried frock be packed in the mould root area of step 1); Concrete steps are: the starting point place that first the arcwall face vertical top of the semicircle ring flange of pre-buried frock is loaded on to blade forming region; Respectively the semicircle opening of large tee girder crossbeam two ends under shed square steel plate is stuck in again on the hold-down nut of 0 °, 180 ° of step 4) steel cross sectional plates periphery and the center of circular hole alignment step 4 of the lower perforate rectangular steel plates of vertical beam free end welding) the nut bore heart of 90 ° of steel cross sectional plates, lock-screw is installed respectively within it, is tightened fixing;
5) by the semicircle ring flange of step 3) towards the one end in described blade forming region towards the some layers of lay glass fabric in this blade forming region, thickness is 15-20mm; On its laying, place the pre-embedded bolt cover identical with the some bolt quantity of described pre-buried frock, pre-embedded bolt overlaps the root described locating hole place of aliging; In described locating hole, be screwed into bolt in pre-embedded bolt cover, by the tight secure fit of screw thread; Then, repave and put the some layers of glass fabric, thickness is 15-20mm;
6) on the glass fibre layer of cloth of laying in step 5), arrange the auxiliary material of water conservancy diversion and diversion pipeline, after whole laying product area is wrapped vacuum and is vacuumized, adopt vacuum assisted resin pouring and forming process to carry out after product perfusion, according to pre-buried blade curing process and bonding matched moulds technique, carry out pre-buried blade forming;
7) demoulding; Concrete operations are: first back out described bolt, dismantle pre-buried frock, pre-embedded bolt cover is embedded in the blade root place of pre-buried blade product equably, is shaped to described pre-buried blade.
Claims (10)
1. on rear punching blade mold, make a device for pre-buried blade, it comprises rear punching blade mold and pre-buried frock; It is characterized in that: described rear punching blade mold is divided into mould root area and blade forming region; Described pre-buried frock is fixed in described mould root area by prefabricated jockey and is concordant with the edge of its mould root, is assembled into one with described rear punching blade mold; The width of described mould root area is 300-500mm.
2. device according to claim 1, it is characterized in that: described pre-buried frock is double-T structure, comprise a large T-shaped beam and a little T-shaped beam, between crossbeam corresponding to large T-shaped beam and little T-shaped beam and between corresponding vertical beam, all by brace summer, be welded and fixed, the center superposition of the center of little T-shaped beam crossbeam and large T-shaped beam crossbeam, the two ends of little T-shaped beam crossbeam are shorter in length than the length at the crossbeam two ends of large T-shaped beam; With the beam face in little T-shaped beam outside be sticked a radian under semicircle ring flange, at the periphery of semicircle ring flange, be evenly equipped with some locating holes; Two ends at large tee girder crossbeam, are respectively fixed with square opening steel plate; The free end of large tee girder vertical beam is fixed with perforate rectangular steel plates; The two ends of described little T-shaped beam crossbeam and middle-end and vertical beam free end are welded and fixed by square bar pad with respect to the position of the circle centre position of 0 °, 90 °, 180 °, described semicircle ring flange and semicircle ring flange.
3. device according to claim 2, it is characterized in that: described brace summer comprises horizontal beam and cant beam, wherein horizontal beam is 4,3 are connected between described large T-shaped beam and the corresponding crossbeam two ends and middle-end of little T-shaped beam, and 1 is connected in vertical beam below that large T-shaped beam is corresponding with little T-shaped beam and parallel with the horizontal beam of described crossbeam middle-end; Cant beam is 3, and 2 are connected on the horizontal beam of crossbeam middle-end and the place, diagonal angle between both ends horizontal beam with 45 °, 135 ° horizontal weldings respectively; One end of 1 is welded on the joint of the horizontal beam of perpendicular beam below, the vertical beam lower end of described large T-shaped beam, and the other end is welded on described little T-shaped beam crossbeam middle-end and horizontal beam joint.
4. device according to claim 3, is characterized in that: the pore size of some described locating holes is identical, and the angle between adjacent 2 locating holes is 3-5 °; In described locating hole, be fitted with bolt.
5. according to the device described in claim 1-4 any one, it is characterized in that: described jockey comprises steel cross sectional plates, conformal plate and some gussets; Wherein, the rectangular slab that steel cross sectional plates is right-angle side for one side semicircular in shape inner arc, three limits; The semicircle radian of inner arc and the radian of described rear punching blade mold coincide; The thickness of this steel cross sectional plates is 10-20mm; Described conformal plate is rectangular slab, and its width is 150-200mm, is shorter in length than the girth of described mould root area; This conformal plate is attached at the outer surface of described mould root installation region, the center superposition of its length direction center and described mould root installation region periphery; The outward flange of described conformal plate is concordant with the semicircle inner arc of the described steel cross sectional plates of joining with described mould root area and be welded and fixed; On the plate face at the semicircle inner arc two ends of described steel cross sectional plates, be respectively equipped with 1 fixing hole; The long screw end of one long bolt nut, through described fixing hole, is fixed to described long bolt nut in this steel cross sectional plates with another nut at the other end; In the semicircle inner arc of described steel cross sectional plates bottom, be directly welded and fixed a nut; Some gussets are distributed in the angle of described steel cross sectional plates outer wall and described conformal plate outer wall, and described cross sectional plates and described conformal plate link are welded and fixed, and the angle between adjacent 2 gussets is 30 °; Described gusset shape is identical, is isosceles right triangle.
6. device according to claim 5, is characterized in that: the periphery of described semicircle ring flange is positioned at the joint in described mould root area and described blade forming region; The under shed square plate at described large tee girder crossbeam two ends is stuck on the fixing described nut in the semicircle inner arc of described steel cross sectional plates two ends; The free-ended lower perforate rectangular steel plates Kong of the vertical beam center of large tee girder is corresponding with the nut bore heart of the semicircle inner arc of described steel cross sectional plates bottom; On described nut, be provided with the lock-screw of pre-buried frock and steel cross sectional plates locking use.
7. device according to claim 6, is characterized in that: described lock-screw is cylinder, and diameter is 30-36mm; Its middle part be one with the disk of cylinder concentric, this disk diameter is 16-20mm; On the cylinder of disk one side, have cross-hole; The cylinder of disk opposite side is a boss near disk place; The diameter of boss is 30-40mm, and height is 15-60mm; Periphery in described boss outside is provided with screw thread.
8. a method of making pre-buried blade on rear punching blade mold, it comprises rear punching blade mold and pre-buried frock; Its operating procedure is as follows:
1) at root area to the root edges 300-500mm place of this rear punching blade mold of described rear punching blade mold, described pre-buried frock is installed;
2) assemble pre-buried frock; This pre-buried frock comprises by a large T-shaped beam and a little T-shaped beam and being arranged side by side, and is welded and fixed and is integrated therebetween by brace summer; The steel pad arranging by its crossbeam two ends and vertical beam lower end in the outside of little T-shaped beam and a radian under 0 °, 90 °, 180 °, semicircle ring flange and the circle centre position of semicircle ring flange be welded and fixed; The center of this semicircle ring flange to the vertical range of periphery than the center of described mould root area the little 3mm of vertical range to its periphery, at the periphery of semicircle ring flange, be evenly equipped with some locating holes; A under shed square steel plate is respectively housed at the crossbeam two ends of large T-shaped beam, and a lower perforate rectangular steel plates is equipped with in the vertical beam bottom of large T-shaped beam;
3) prefabricated and installing and connecting apparatus; This jockey is divided into conformal plate, steel cross sectional plates and gusset; Wherein, conformal plate is rectangular slab, and the width of this rectangular slab is narrower than the width of described mould root area, is shorter in length than the girth of described mould root area; Described conformal plate is attached on the arcwall face of described step 1) mould root area outer end, the center superposition of the mid point on the length direction of conformal plate and described arcwall face periphery; Described steel cross sectional plates is the rectangular slab that on one side semicircular in shape inner arc, three limits are right-angle side, and 2 vertical right-angle sides be respectively 340mm apart from the distance at semicircle inner arc two ends, and horizontal sides to all paracentral distances of semicircle inner arc are 390mm; The radian of the radian of the semicircle inner arc of this steel cross sectional plates and described rear punching blade mold coincide; The arc-shaped side of the semicircle inner arc of described steel cross sectional plates and end, described conformal buttress portion region is welded and fixed, then along 0 °, 180 °, the peripheral panels face of this semicircle inner arc, have fixed via, the screw rod end of one long bolt nut is through described fixed via, at the opposite side of steel cross sectional plates, by another nut, described long screw end is fixed in described steel cross sectional plates; In 90 °, the bilge ways face of this semicircle inner arc, be directly welded and fixed a nut; Described gusset is several, is distributed in the joint of described steel cross sectional plates semi arch outer wall and described conformal plate outer wall; Interval angle between adjacent 2 gussets is 30 °; This gusset be shaped as isosceles right triangle;
4) by step 2) pre-buried frock be packed in the mould root area described in step 1); Concrete steps are: the starting point place that first the arcwall face vertical top of the semicircle ring flange of pre-buried frock is loaded on to described blade forming region; Again respectively by the semicircle open card of described large tee girder crossbeam two ends under shed square steel plate on the hold-down nut of 0 ° of steel cross sectional plates periphery described in step 4) and 180 ° and the center of circular hole alignment step 4 of the lower perforate rectangular steel plates of vertical beam free end welding) the nut bore heart of 90 ° of described steel cross sectional plates, lock-screw is installed respectively within it, is tightened fixing;
5) by semicircle ring flange described in step 3) towards the one end in described blade forming region towards the some layers of lay glass fabric in this blade forming region, thickness is 15-20mm; On its laying, place the pre-embedded bolt cover identical with the some bolt quantity of described pre-buried frock, pre-embedded bolt overlaps the root described locating hole place of aliging; In described locating hole, be screwed into bolt in pre-embedded bolt cover, by the tight secure fit of screw thread; Then, repave and put the some layers of glass fabric, thickness is 15-20mm;
6) on the glass fibre layer of cloth of laying in step 5), arrange the auxiliary material of water conservancy diversion and diversion pipeline, after whole laying product area is wrapped vacuum and is vacuumized, adopt vacuum assisted resin pouring and forming process to carry out after product perfusion, according to pre-buried blade curing process and bonding matched moulds technique, carry out pre-buried blade forming;
7) demoulding; Concrete operations are: first back out described bolt, dismantle described pre-buried frock, described pre-embedded bolt cover is embedded in the blade root place of pre-buried blade product equably, is shaped to described pre-buried blade.
9. method according to claim 8, is characterized in that: step 2) described square bar pad and described semicircle ring flange weld be provided with the fixedly lock-screw of use; The pore size of described locating hole is identical, and the angle between adjacent 2 locating holes is identical, is 3-5 °.
10. method according to claim 9, is characterized in that: the thickness of steel cross sectional plates is 10-20mm; Described gusset is isosceles right triangle, and the right angle length of side is 180mm, and hypotenuse is long is 254mm.
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| CN105773130A (en) * | 2016-03-28 | 2016-07-20 | 吉林重通成飞新材料股份公司 | Embedding tool for bolt of blade root |
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Effective date of registration: 20161226 Address after: 23 No. 224400 Funing Yancheng City County in Jiangsu province Funing Xin Road Economic Development Zone Patentee after: Sinoma science and Technology (Funing) wind power blade Co., Ltd. Address before: Badaling 102101 Beijing County of Yanqing City Donghuan Road No. 1 Patentee before: BEIJING BRANCH OF SINOMATECH WIND POWER BLADE CO., LTD. |