A kind of spindle bearing holder blank of wind power generating set
Technical field
The utility model relates to a kind of part of wind power generating set, is specifically related to a kind of blank of wind power generating set part.
Background technique
General main wind energy conversion system, gear-box, generator, controller and the structural member of comprising of wind power generating set.Structural member comprises underground foundation, pylon and cabin.The cabin comprises base and engine room cover.For the horizontal-shaft wind turbine group of capacity more than 1 megawatt, the base in cabin generally is fixed on the forebay by rear bay and constitutes.Wind energy conversion system comprises blade, wheel hub, main shaft and cowling.Pylon is fixed on the underground foundation, the base in cabin by its forebay from upper fixed on the top of pylon, spindle bearing holder and gear-box are arranged on the forebay, and spindle bearing holder is from the front end of upper fixed mmi machine frame, and gear-box is by the centre of its casing from upper fixed mmi machine frame.Main shaft bearing is fixed on the spindle bearing holder by its outer ring.Generator is arranged on the rear bay.The blade of wind energy conversion system is fixed on the wheel hub, and the front end of main shaft is fixedlyed connected with wheel hub, and the centre of main shaft is rotatably connected in the inner ring of main shaft bearing, fixedlys connected with the power input shaft of gear-box by coupling in the rear end of main shaft.The pto of gear-box is fixedlyed connected with the motor shaft of generator by coupling.
In the above-mentioned parts of wind power generating set, capacity is that weight is at the large-scale ductile iron integral piece more than 5 tons at the spindle bearing holder of the horizontal-shaft wind turbine group more than 1 megawatt.The left and right sides of spindle bearing holder main body 1a is thicker with the position wall thickness that the 3a of right hand fixed seat portion is connected with the 2a of left hand fixed seat portion, being the thick large part (seeing Fig. 6 for details) of spindle bearing holder foundry goods, is the position that is easy to generate shrinkage cavity defect (shrinkage cavity be meant foundry goods shrinks and the hole that produces) most in condensation process in casting technique.Because the left and right sides of spindle bearing holder main body 1a is main force part with the position that the 2a of left hand fixed seat portion is connected with the 3a of right hand fixed seat portion, when this position produces shrinkage cavity defect, can cause whole foundry goods to be scrapped, cause great economic loss.
Summary of the invention
The purpose of this utility model provides a kind of spindle bearing holder blank that does not produce the wind power generating set of serious shrinkage cavity defect.
The technological scheme that realizes the utility model purpose is a kind of spindle bearing holder blank of wind power generating set, is the spheroidal graphite cast iron integral piece, comprises spindle bearing holder main body, left hand fixed seat portion, right hand fixed seat portion, preceding side flange, back side flange and boss;
The peripheral shape of spindle bearing holder main body is oval, and the spindle bearing holder main body about to outside dimension longer than the outside dimension of upward and downward; The bearing mounting hole of the circle that connects before and after the central position of spindle bearing holder main body has;
Left hand fixed seat portion is connected on the spindle bearing holder main body from left, and is positioned at the left of spindle bearing holder main body;
Right hand fixed seat portion is connected on the spindle bearing holder main body from right-hand, and is positioned at the right-hand of spindle bearing holder main body;
Preceding side flange is arranged on the front side of spindle bearing holder main body, and is coaxially set around the bearing mounting hole of spindle bearing holder main body; Back side flange is arranged on the rear side of spindle bearing holder main body, and is coaxially set around the bearing mounting hole of spindle bearing holder main body; Boss is connected on the spindle bearing holder main body from the top, and is positioned at the center of top position of spindle bearing holder main body;
Sagittal middle part on the upper and lower end face of spindle bearing holder main body be provided with along about to the groove that stretches, be respectively first groove, second groove, the 3rd groove and the 4th groove; First groove wherein and the equal opening of second groove are upwards, be positioned on the upper-end surface of spindle bearing holder main body, and first groove about left hand fixed seat portion and spindle bearing holder main body to neutral position place between, second groove about the spindle bearing holder main body to the place, neutral position and right hand fixed seat portion between; All Open Side Down for the 3rd groove and the 4th groove, be positioned on the lower end surface of spindle bearing holder main body, and the 3rd groove about left hand fixed seat portion and spindle bearing holder main body to neutral position place between, the 4th groove about the spindle bearing holder main body to the place, neutral position and right hand fixed seat portion between.
The front side of above-mentioned left hand fixed seat portion is the position of protrusion forward that is called left boss, the circular hole that left hand fixed seat portion connects before and after the central position of left boss has; The front side of described right hand fixed seat portion is the position of protrusion forward that is called right boss, the circular hole that right hand fixed seat portion connects before and after the central position of right boss has.
The utlity model has positive effect: the above and below at the position that the spindle bearing holder blank of (1) wind power generating set of the present utility model is connected with right hand fixed seat with left hand fixed seat in the left and right sides of spindle bearing holder main body is equipped with groove, thereby attenuate the thickness at this position, prevent the generation of shrinkage cavity effectively, guaranteed finished casting rate.(2) spindle bearing holder blank of the present utility model also is equipped with the circular hole that front and back connect in left hand fixed seat portion and right side fixing part, also makes this position prevent the generation of shrinkage cavity effectively, has guaranteed finished casting rate.
Description of drawings
Fig. 1 is a kind of structural representation of the spindle bearing holder blank of wind power generating set of the present utility model.
Fig. 2 is the structural representation when observing from the rear of Fig. 1.
Fig. 3 is the structural representation when observing from the top of Fig. 1.
Fig. 4 is the structural representation during from the beneath of Fig. 1.
Fig. 5 is the cut-away view of the B-B face after amplify at the A place among Fig. 1.
Fig. 6 is the structural representation of spindle bearing holder finished product in the prior art.
The mark of above-mentioned accompanying drawing is as follows:
Spindle bearing holder main body 1, bearing mounting hole 11, groove 12,
Left hand fixed seat portion 2, circular hole 21, left boss 22,
Right hand fixed seat portion 3, circular hole 31, right boss 32,
Preceding side flange 4, back side flange 5, boss 6.
Embodiment
In the embodiment of the present utility model to the description in orientation according to the spindle bearing holder blank of wind power generating set shown in Figure 1 towards carrying out.
(embodiment 1)
See Fig. 1 to Fig. 5, the spindle bearing holder blank of the wind power generating set of present embodiment is the spheroidal graphite cast iron integral piece, comprises spindle bearing holder main body 1, left hand fixed seat portion 2, right hand fixed seat portion 3, preceding side flange 4, back side flange 5 and boss 6.
The basic shape of the periphery of spindle bearing holder main body 1 is oval, its central axis along front and back to being horizontally disposed with, and spindle bearing holder main body 1 about to outside dimension longer than the outside dimension of upward and downward.The bearing mounting hole 11 of the circle that connects before and after the central position of spindle bearing holder main body 1 has.
Left hand fixed seat portion 2 is connected on the spindle bearing holder main body 1 from left, and is positioned at the left of spindle bearing holder main body 1.The front side of left hand fixed seat portion 2 is the positions of protrusion forward that are called left boss 22, the circular hole 21 that left hand fixed seat portion 2 connects before and after the central position of left boss 22 has.
Right hand fixed seat portion 3 is connected on the spindle bearing holder main body 1 from right-hand, and is positioned at the right-hand of spindle bearing holder main body 1.The front side of right hand fixed seat portion 3 is the positions of protrusion forward that are called right boss 32, the circular hole 31 that right hand fixed seat portion 3 connects before and after the central position of right boss 32 has.
Preceding side flange 4 is arranged on the front side of spindle bearing holder main body 1, and is coaxially set around the bearing mounting hole 11 of spindle bearing holder main body 1.Back side flange 5 is arranged on the rear side of spindle bearing holder main body 1, and is coaxially set around the bearing mounting hole 11 of spindle bearing holder main body 1.Boss 6 is connected on the spindle bearing holder main body 1 from the top, and is positioned at the center of top position of spindle bearing holder main body 1.
Sagittal middle part on the upper and lower end face of spindle bearing holder main body 1 also be provided with along about to the groove 12 that stretches, be respectively the first groove 12-1, the second groove 12-2, the 3rd groove 12-3 and the 4th groove 12-4.First groove 12-1 wherein and the equal opening of the second groove 12-2 are upwards, be positioned on the upper-end surface of spindle bearing holder main body 1, and the first groove 12-1 about left hand fixed seat portion 2 and spindle bearing holder main body 1 to neutral position place between, the second groove 12-2 about spindle bearing holder main body 1 to the place, neutral position and right hand fixed seat portion 3 between; All Open Side Down for the 3rd groove 12-3 and the 4th groove 12-4, be positioned on the lower end surface of spindle bearing holder main body 1, and the 3rd groove 12-3 about left hand fixed seat portion 2 and spindle bearing holder main body 1 to neutral position place between, the 4th groove 12-4 about spindle bearing holder main body 1 to the place, neutral position and right hand fixed seat portion 3 between.