CN1074097C - Blade of centrifugal air-compressor - Google Patents
Blade of centrifugal air-compressor Download PDFInfo
- Publication number
- CN1074097C CN1074097C CN97103500A CN97103500A CN1074097C CN 1074097 C CN1074097 C CN 1074097C CN 97103500 A CN97103500 A CN 97103500A CN 97103500 A CN97103500 A CN 97103500A CN 1074097 C CN1074097 C CN 1074097C
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- mentioned
- wheel hub
- impeller
- guard shield
- blade
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- Expired - Lifetime
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- 238000003825 pressing Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 229920003002 synthetic resin Polymers 0.000 claims description 6
- 239000000057 synthetic resin Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 abstract 1
- 230000001914 calming effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000007634 remodeling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Images
Classifications
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
- B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
- B29C33/485—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling cores or mandrels
-
- 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
- B29L2031/087—Propellers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
To make fluid performance better and try to increase wind quantity and reduce noises by forming a shroud so that the dimension in rotary shaft direction with a hub is gradually smaller toward the outer diameter direction and specifying the shapes of a blade in the rotational direction side of adjacent blades and of a blade on the anti-rotation side. A vane of a centrifugal machine arranges a boss 2 at the rotation center thereof and has a hub 3, a blade 4, and shroud 5. An outer diameter DH1 of the hub 3 is greater than an inner diameter ds1 of the shroud 5, distances Y1 to Y3 in the rotary shaft direction of the shroud 5 and the hub 3 is gradually smaller in the radial direction. The shape of the blade 4 seen from the top face is so that a tangent line at an arbitrary point from the outer diameter of the shroud 5 on the line opposite to the rotational direction of a blade 401 to the core inner diameter and a tangent line at an arbitrary point from the outer diameter of the shroud 5 on the line on the rotational direction side of the blade 40 to the core inner diameter have a cross point inside than the outer diameter of the shroud 5.
Description
The present invention relates to the impeller of a kind of centrifugal-flow compressor (or claiming fan) and relate to the method for making this impeller, say that more specifically the present invention is applicable to and makes a kind of resin-molded impeller that is used for air regulator.
In known a kind of impeller, the external diameter of its wheel hub is less than the internal diameter of guard shield, and axle sleeve, wheel hub, some blades and guard shield are made a kind of integrated member with the pumping mode method, again with on the end of an external diameter greater than the fixing firmly excircle that is connected to wheel hub in other words of the wheel hub annulus of guard shield internal diameter and above-mentioned several blades.For example, unsettled Japan Patent No.61-197800 discloses the impeller of this centrifugal-flow compressor, and in this impeller, the distance between guard shield and the wheel hub on the rotation axis direction radially reduces gradually.
In the impeller of above-mentioned common centrifugal-flow compressor, be provided with a wheel hub annulus, make the internal diameter of the external diameter of wheel hub greater than guard shield, but, when making this impeller, the impeller subassembly and the wheel hub annulus that contain a guard shield, a wheel hub and some blades are formed separately by the injection mould platen press, then impeller subassembly and wheel hub annulus linked together, and mutual balance.Therefore, need three road work steps, the result, it is long to make the required time of impeller, the equipment cost height, thus improved resulting cost.
China utility model patent CN2135077Y discloses the mfg. moulding die of centrifugal pump impeller, and each core rod comprises four parts, and wherein, the part in two outsides is installed on the upper mold section by screw, because radially wide outside and narrow inside and can extract out laterally; The part of two inboards is installed on the female die, can only take out from the inboard.The periphery in the cross section of the guard shield of the impeller of being made by this mould is not an arc, axial distance between the residing plane of the periphery of wheel hub and its outer end begins to depend on gradually towards the outer periphery of above-mentioned wheel hub and reduces, then, no longer reduce, but keep constant substantially, even the trend of increase is arranged.As a result, do not simplify the manufacture process of impeller equally.
So, an object of the present invention is to provide a kind of impeller of centrifugal-flow compressor, this impeller has good calm the anger performance and increases air demand, and has a good effect that reduces noise, it can be made work step by single road and create in the short period of time, and have high balance quality or the like and a low cost of manufacture.
Another object of the present invention is to propose a kind of method of making above-mentioned impeller.
According to an aspect of the present invention, provide a kind of impeller of centrifugal-flow compressor, it comprises: the axle sleeve on rotation axis that is arranged on above-mentioned impeller; A wheel hub that extends radially outwardly from this axle sleeve; Several are arranged on the center of circle and are positioned at blade on the circumference on the above-mentioned rotation axis; With a guard shield, the external diameter of above-mentioned wheel hub is greater than the internal diameter of above-mentioned guard shield, the structure of above-mentioned guard shield makes that the excircle along the distance on the rotation axis direction towards above-mentioned impeller reduces gradually between above-mentioned guard shield and the above-mentioned wheel hub, the periphery that it is arc that above-mentioned guard shield has a cross section, the axial distance between the residing plane of the periphery of above-mentioned wheel hub and its outer end reduces gradually towards the outer periphery of above-mentioned wheel hub.
Particularly, in any two adjacent blades, in rotational direction on the suction surface of a blade of another blade front and on through the tangent line of the excircle of above-mentioned guard shield and the arbitrfary point between the inner circumference and compression face at above-mentioned another blade and be positioned at through the tangent line intersection point to each other of the excircle of above-mentioned guard shield and the arbitrfary point between the inner circumference above-mentioned guard shield excircle radially to side.
Particularly, above-mentioned guard shield has the periphery of an arc section, and above-mentioned wheel hub has the periphery of an arc section, and the above-mentioned cross section of above-mentioned guard shield is that the above-mentioned cross section of the circular arc center of circle of part of arc and above-mentioned wheel hub is that the circular arc center of circle of the part of arc coincides each other.
Particularly, above-mentioned impeller forms with molding synthetic resin.
Particularly, the external diameter of wheel hub is 300～400mm, and the number of blade is 6～11, and the internal diameter of guard shield is 200～250mm.
Particularly, above-mentioned impeller is an integrated member.
According to another aspect of the present invention, provide the method for making the centrifugal-flow compressor impeller, described impeller contains: the axle sleeve on rotation axis that is arranged on above-mentioned impeller; A wheel hub that extends radially outwardly from above-mentioned axle sleeve; Several are arranged on its center of circle and are positioned at blade on the circumference on the above-mentioned rotation axis; With a guard shield, the external diameter of above-mentioned wheel hub is greater than the internal diameter of above-mentioned guard shield, adopted a kind of mould that contains core in the method for above-mentioned manufacturing impeller, described core place with by above-mentioned wheel hub, in the corresponding zone, space that above-mentioned guard shield and above-mentioned blade constitute, each above-mentioned core contains a following core block that is used for forming above-mentioned wheel hub, with a last core block that is used for forming above-mentioned guard shield, above-mentioned last core block can be rotated, when rotating, it can not collide with the good wheel hub of mold pressing, it is characterized in that described method further comprises the following steps: the mould material is poured in the above-mentioned mould; , above-mentioned mould material solidify after, from above-mentioned mould extract above-mentioned following core block, then, rotate above-mentioned last core block and it is taken out from above-mentioned mould thereafter.
According to another aspect of the present invention, provide a kind of mould of making the impeller of centrifugal-flow compressor, described impeller comprises: the axle sleeve on rotation axis that is arranged on above-mentioned impeller; A wheel hub that extends radially outwardly from above-mentioned axle sleeve; A plurality of its centers of circle that are arranged on are positioned at blade on the circumference on the above-mentioned rotation axis; With a guard shield, the external diameter of above-mentioned wheel hub is characterized in that greater than the internal diameter of above-mentioned guard shield described mould comprises: a stuck-module that is used for forming above-mentioned wheel hub; A module that moves up that is used for forming above-mentioned guard shield; With several place with the corresponding zone, space that constitutes by above-mentioned wheel hub, above-mentioned guard shield and above-mentioned blade in core, each core can rotate to the mould outside around a pivot, with along roughly extracting out with the tangent direction of corresponding blade.
Particularly, each above-mentioned core contains the following core and the last core that is used for forming above-mentioned guard shield that are used for forming above-mentioned wheel hub, after going out an integrally-built above-mentioned impeller with above-mentioned mould mold pressing, along radially above-mentioned following core outwards being extracted out from above-mentioned mould of above-mentioned wheel hub, and above-mentioned last core is rotated around above-mentioned center, and from above-mentioned mould, it is extracted out.
Particularly, above-mentioned last core block can not run into the good wheel hub of mold pressing around a rotational when it rotates.
Because the present invention has adopted technique scheme, therefore can produce following beneficial effect.
The external diameter of wheel hub is greater than the internal diameter of guard shield, and the excircle along the distance on the rotation axis direction towards impeller between guard shield and the wheel hub reduces gradually.Adopt this structure, can improve the performance of calming the anger.Adopt above-mentioned blade shape, impeller can be molded into an integrated member.
The mould that impeller is molded into integrated member contains: a stuck-module that is used for forming wheel hub, a module that moves up that is used for forming guard shield, with several cores, these cores respectively place with the corresponding zone, space that constitutes by wheel hub, guard shield and blade in, each core can be along roughly extracting out with the tangent direction of corresponding blade.According to above-mentioned design, can make impeller efficiently and do not influence the intensity of impeller.
Above-mentioned guard shield preferably has the periphery of an arc section, and above-mentioned wheel hub preferably also has the periphery of an arc section, and the center of the circular arc of these two parts overlaps basically each other.Adopt said structure, can improve the performance of calming the anger, especially can increase air demand, and can reach the effect that reduces noise.
Each core preferably contains the following core block and the last core block that is used for forming guard shield that are used for forming wheel hub, after going out integrally-built impeller by the mould mold pressing, just from mould, extract core block down out, and rotate around a pivotal axis and to go up core block and it is taken out from mould along the radially outward of wheel hub.Adopt this structure, can improve balance quality or the like.
Each core preferably contains the following core block and the last core block that is used for forming guard shield that are used for forming wheel hub, should go up core block can pivot, and when rotating, it can not collide with the good wheel hub of mold pressing, after adopting the mould mold pressing to go out integrally-built impeller, just from mould, extract core block down out along the radially outward of wheel hub, and around the last core block of pivotal axis rotation, and it is taken out from mould.
Adopt this structure, wheel hub and guard shield can be done respectively and be paired in the performance of calming the anger is best shape, and, can further reduce cost owing to adopt the mold pressing overall structure.
The internal diameter of guard shield is 200～250mm, and the external diameter of wheel hub is 350～400mm, and the number of blade is 6～11.Adopt this structure, all cores can radially be provided with, and the mould that has these cores is made easily.Adopt this blade shape, can improve the performance of calming the anger effectively, wheel hub and guard shield also can have best structure separately.
Describe the present invention in detail referring to accompanying drawing below, in the accompanying drawing:
Fig. 1 is the perspective view of the most preferred embodiment of impeller of the present invention, and this embodiment is a basic structure of the present invention;
Fig. 2 is the top plan view of impeller shown in Figure 1;
Fig. 3 is impeller shown in Figure 2 (first embodiment's) a sectional view, and its blade is given prominence on cylindrical body;
Fig. 4 is the top plan view of impeller, and the passage of the extraction core between guard shield and wheel hub is shown;
Fig. 5 is the view similar to Fig. 4, but a remodeling of the present invention is shown, and wherein, the shape of each blade is the linear in other words of straight line;
Fig. 6 is first embodiment's a sectional view, and its blade is given prominence on cylindrical body;
Fig. 7 is first embodiment's a sectional view, shows to be in the closed mould of clamped condition in other words;
Fig. 8 is the sectional view of second embodiment of the invention, and its blade is given prominence on cylindrical body;
Fig. 9 is second embodiment's a sectional view, and the mould that is in closed state is shown;
Figure 10 is the 3rd embodiment's a sectional view, and its blade is given prominence on cylindrical body;
Figure 11 is the 3rd embodiment's a sectional view, and the mould that is in closed state is shown;
Figure 12 is the 4th embodiment's a sectional view, and its blade is given prominence on cylindrical body;
Figure 13 is the 4th embodiment's a sectional view, and the mould that is in closed state is shown;
Figure 14 is the 4th embodiment's a top plan view, and the situation that all cores are extracted out from the mould radially outward is shown; With
Figure 15 is the 4th embodiment's a sectional view, and the situation that mould is removed from the good impeller of mold pressing is shown.
Describe most preferred embodiment of the present invention in detail referring to Fig. 1～15 below.Fig. 1 is a kind of perspective view of centrifugal-flow compressor impeller; Fig. 2 is the top plan view of impeller; Fig. 3 is the sectional view of impeller, and its blade 4 is outstanding from the cylindrical body; Fig. 4 represents the top plan view of a core extraction passage between guard shield 5 and wheel hub 3; Fig. 5 is the top plan view similar to Fig. 4, but its blade is linear.
Centrifugal-flow compressor impeller 1 shown in Fig. 1 and 2 contains one and places the axle sleeve 2 on its rotation axis, wheel hub 3 and an a plurality of blade 4 and a guard shield 5.The outer diameter D of wheel hub 3
H1Inner diameter d greater than guard shield 5
S1(be D
H1＞d
S1), between guard shield 5 and the wheel hub 3 along Y among distance on the wheel rotation axial direction such as the figure
1, Y
2And Y
3Like that radially outwards (promptly towards excircle) to reduce gradually (be Y
1＞Y
2＞Y
3).
The shape of blade 4 is such: if from the pre-view of impeller shown in Figure 4, with blade 4
01The one side that deviates from sense of rotation (suction surface) on be positioned at guard shield 5 excircle (promptly deciding the external diameter of guard shield 5) and core D
01Inner circumference between the arbitrfary point on tangent line and with blade 4
02Facing to the excircle and the core D that are positioned at guard shield 5 on the one side (compression face) of sense of rotation
01Inner circumference between the arbitrfary point on tangent line intersection point each other be not positioned at the excircle radially outward of guard shield 5 but the excircle that is positioned at guard shield 5 is radially inwardly located.
Therefore, as shown in Figure 4, above-mentioned core D
01Can be in the minimum angle theta of above-mentioned two undercut lines formation
0Scope in radially outwards extraction remove in other words, as D among the figure
02Shown in.
In a remodeling of the present invention shown in Figure 5, the shape of blade 4 is such: by blade 4
11The formed line of the face that deviates from sense of rotation (suction surface) be that an excircle from guard shield 5 external diameter of guard shield 5 (limit) is to core D
11The straight line of inner circumference, and by blade 4
12Also be that an excircle from guard shield 5 is to core D facing to the formed line of face (compression face) of sense of rotation
11The straight line of inner circumference.
In this embodiment, the intersection point of above-mentioned two straight lines is not positioned at the excircle radially outward place of guard shield 5.
Therefore, as shown in Figure 5, core D
11Can be by above-mentioned two angle theta that straight line constitutes
1Scope in radially outwards extract out in other words and take out, as D among the figure
12Shown in.
Fig. 6 and 7 illustrates the section by the centrifugal-flow compressor impeller of above-mentioned condition setting.Fig. 6 is the sectional view of impeller, and Fig. 7 is used for the mould of impeller of mold pressing Fig. 6 to be in sectional view under the closed clamped condition in other words.
In the impeller of Fig. 6, (it is positioned at the radially outward place of mould mold joint L to the circular arc of the center of the circular arc of the section curved portion of guard shield 5 (it is facing to blade 4) and the section curved portion of wheel hub 3, and towards blade 4) the center coincide, a is positioned on the same point, as shown in Figure 7 with pivotal axis.
Fig. 7 illustrates the structure of mould.The mould closure is clamped in other words, then a kind of synthetic resin or similar mould material are poured in the mould.After this, active module A1 upwards extracted out upwards remove in other words, more every core C1 is outwards rotated around pivotal axis a, and remove from stuck-module B1.
Fig. 8 and 9 illustrates second embodiment of centrifugal-flow compressor impeller of the present invention.
Fig. 8 is the sectional view of impeller, and Fig. 9 is used for the mould of mold pressing impeller shown in Figure 8 sectional view when being in closed clamped condition in other words.
As shown in Figure 8, guard shield 5 at diameter greater than its inner diameter d
S1And facing to that a part of section of blade 4 is arc, being positioned at mould mold joint L radially outward and not being the outer rim of more and more close guard shield 5 towards the periphery of blade 4 when extend wheel hub 3 outer peripherys at it of wheel hub 3.Distance h between the straight section of wheel hub 3 peripheries and wheel hub 3 ends
1, h
2, h
3Be defined as h
1〉=h
2〉=h
3The center of the circular arc of guard shield 5 curved portions (it is facing to blade 4) overlaps each other with the center of the circular arc of wheel hub 3 curved portions (it is positioned at the radially outward place of mould mold joint L and faces toward blade 4), and b is positioned on the same point, as shown in Figure 9 with pivotal axis.
As for mould, its each piece core is divided into two parts, i.e. the following core D of wheel hub 3
1With last core D
2, see Fig. 9.The mould closure is clamped in other words, then synthetic resin or similar mould material are poured in the mould, afterwards, will descend core D
1Extract out along the wheel hub radially outward, make it move apart stuck-module B
2Then, go up core D with every
2B outwards rotates around axis, and with active module A
2Upwards extract out.
Above Figure 10 and 11 illustrates by the 3rd embodiment of the centrifugal-flow compressor impeller of Fig. 4 or the described condition setting of Fig. 5.
Figure 10 is the sectional view of impeller, and Figure 11 is used for the mould of mold pressing impeller shown in Figure 10 to be in its closure sectional view under the clamped condition in other words.
Among Figure 10, guard shield 5 at its diameter greater than inner diameter d
S1Scope and be not an arc facing to the section at the position of blade 4, wheel hub 3 at the radially outward place of mould mold joint L and facing to the periphery of blade 4 gradually when extend its outer periphery not more and more near the straight section (constant with the distance of this straight section in other words) of guard shield 5.Distance h between the straight section of wheel hub 3 and the wheel hub 3
1, h
2, h
3Relation be defined as h
1〉=h
2〉=h
3
As for mould, every core is divided into two-part, i.e. the core D of wheel hub 3
3With core D
4(seeing Figure 11).With the model closure, clamp in other words, then synthetic resin or similar mould material are poured in the mould.Afterwards, with core D
3Radially outward along wheel hub 3 is extracted out, and moves apart stuck-module B
3, then, will every another piece core D
4Along the pivot axis of wheel hub 3, and extract out, again with active module A along the radially outward of wheel hub 3
3Upwards extract out.
Figure 12 and 13 illustrates the 4th embodiment by top centrifugal-flow compressor impeller to Fig. 4 or the described condition setting of Fig. 5.
Figure 12 is the sectional view of impeller, Figure 13 is used for the mould of mold pressing impeller shown in Figure 12 to be in its closure sectional view under the clamped condition in other words, Figure 14 is a top plan view of representing radially to extract out the method for core, and Figure 15 is a sectional view of representing state that mould is removed from the good impeller of mold pressing.
Among Figure 12, guard shield 5 at its diameter greater than inner diameter d
S1Scope in and be not an arc facing to the section at the position of blade 4, the radially outward place that is positioned at mould mold joint L of wheel hub 3 and be not more and more near the outer rim of guard shield 5 when extend the outer periphery of wheel hub 3 facing to the periphery of blade 4.Distance h between the straight section of the periphery of wheel hub 3 and wheel hub 3 ends
1, h
2, h
3Relation be defined as h
1〉=h
2〉=h
3
As for mould, each core is divided into two parts, i.e. the core D of wheel hub
5With core D
6(seeing Figure 13), core D
6Can rotate with respect to the part facing to blade 4 of guard shield 5 around axis C.
Mould closed to close in other words clamp, then with synthetic resin or similarly the mould material pour in the mould.Afterwards, with core D
5Radially outward along wheel hub 3 is extracted out, and moves apart stuck-module B
4(seeing Figure 14), then, with other core D of each piece
6Rotate along the radially outward of wheel hub 3 around axis C, then, upwards extract active module A out
4, and from mould, take out the good impeller of mold pressing, see Figure 15.
In the present invention, impeller can come out with injection mould platen press or similar approach mold pressing integrally.Therefore, the centrifugal-flow compressor impeller that is provided has good calm the anger performance and increases the air delivery volume, and has the effect of good minimizing noise, impeller with short production cycle, and cost is low, and has high balance quality, or the like.
Claims (10)
1. the impeller of a centrifugal-flow compressor comprises:
Axle sleeve (2) on rotation axis that is arranged on above-mentioned impeller;
A wheel hub that extends radially outwardly from this axle sleeve (3);
Several are arranged on the center of circle and are positioned at blade (4) on the circumference on the above-mentioned rotation axis; With
A guard shield (5), the external diameter (D of above-mentioned wheel hub
H1) greater than the internal diameter (d of above-mentioned guard shield
S1),
The structure of above-mentioned guard shield makes that the excircle along the distance on the rotation axis direction towards above-mentioned impeller reduces gradually between above-mentioned guard shield and the above-mentioned wheel hub,
It is characterized in that, the periphery that it is arc that above-mentioned guard shield has a cross section, the axial distance between the residing plane of the periphery of above-mentioned wheel hub and its outer end reduces gradually towards the outer periphery of above-mentioned wheel hub.
2. impeller as claimed in claim 1, it is characterized in that, in any two adjacent blades, in rotational direction on the suction surface of a blade of another blade front and on through the tangent line of the excircle of above-mentioned guard shield and the arbitrfary point between the inner circumference and compression face at above-mentioned another blade and be positioned at through the tangent line intersection point to each other of the excircle of above-mentioned guard shield and the arbitrfary point between the inner circumference above-mentioned guard shield excircle radially to side.
3. impeller as claimed in claim 1, it is characterized in that, above-mentioned guard shield has the periphery of an arc section, and above-mentioned wheel hub has the periphery of an arc section, and the above-mentioned cross section of above-mentioned guard shield is that the above-mentioned cross section of the circular arc center of circle (a) of part of arc and above-mentioned wheel hub is that the circular arc center of circle (a) of the part of arc coincides each other.
4. impeller as claimed in claim 1 is characterized in that above-mentioned impeller forms with molding synthetic resin.
5. impeller as claimed in claim 1 is characterized in that, the external diameter of wheel hub is 300～400mm, and the number of blade is 6～11, and the internal diameter of guard shield is 200～250mm.
6. impeller as claimed in claim 1 is characterized in that, above-mentioned impeller is an integrated member.
7. make the method for centrifugal-flow compressor impeller, described impeller contains:the axle sleeve on rotation axis that is arranged on above-mentioned impeller; A wheel hub that extends radially outwardly from above-mentioned axle sleeve; Several are arranged on its center of circle and are positioned at blade on the circumference on the above-mentioned rotation axis; With a guard shield; The external diameter of above-mentioned wheel hub is greater than the internal diameter of above-mentioned guard shield; Adopted a kind of mould that contains core in the method for above-mentioned manufacturing impeller; Described core places in the zone corresponding with the space that is made of above-mentioned wheel hub, above-mentioned guard shield and above-mentioned blade; Each above-mentioned core contains a lower core block that is used for forming above-mentioned wheel hub; With a upper core block that is used for forming above-mentioned guard shield; Above-mentioned upper core block can be rotated; When rotating, it can not collide with the good wheel hub of mold pressing
It is characterized in that described method further comprises the following steps:
The mould material is poured in the above-mentioned mould;
, above-mentioned mould material solidify after, from above-mentioned mould extract above-mentioned following core block, then, rotate above-mentioned last core block and it is taken out from above-mentioned mould thereafter.
8. mould of making the impeller of centrifugal-flow compressor, described impeller comprises: the axle sleeve on rotation axis that is arranged on above-mentioned impeller; A wheel hub that extends radially outwardly from above-mentioned axle sleeve; A plurality of its centers of circle that are arranged on are positioned at blade on the circumference on the above-mentioned rotation axis; With a guard shield, the external diameter of above-mentioned wheel hub is greater than the internal diameter of above-mentioned guard shield,
It is characterized in that described mould comprises:
A stuck-module that is used for forming above-mentioned wheel hub;
A module that moves up that is used for forming above-mentioned guard shield; With
Several place with the corresponding zone, space that constitutes by above-mentioned wheel hub, above-mentioned guard shield and above-mentioned blade in core, each core can rotate to the mould outside around a pivot, with along roughly extracting out with the tangent direction of corresponding blade.
9. mould as claimed in claim 8, it is characterized in that, each above-mentioned core contains the following core and the last core that is used for forming above-mentioned guard shield that are used for forming above-mentioned wheel hub, after going out an integrally-built above-mentioned impeller with above-mentioned mould mold pressing, along radially above-mentioned following core outwards being extracted out from above-mentioned mould of above-mentioned wheel hub, and above-mentioned last core is rotated around above-mentioned center, and from above-mentioned mould, it is extracted out.
10. mould as claimed in claim 8 is characterized in that, above-mentioned last core block can not run into the good wheel hub of mold pressing around a rotational when it rotates.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP062486/96 | 1996-03-19 | ||
| JP06248696A JP3192083B2 (en) | 1996-03-19 | 1996-03-19 | Impeller of centrifugal blower and method of manufacturing the same |
| JP062486/1996 | 1996-03-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1163356A CN1163356A (en) | 1997-10-29 |
| CN1074097C true CN1074097C (en) | 2001-10-31 |
Family
ID=13201565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97103500A Expired - Lifetime CN1074097C (en) | 1996-03-19 | 1997-03-18 | Blade of centrifugal air-compressor |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3192083B2 (en) |
| CN (1) | CN1074097C (en) |
| MY (1) | MY124098A (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001234888A (en) * | 2000-02-25 | 2001-08-31 | Mitsubishi Heavy Ind Ltd | Blower |
| KR100405981B1 (en) * | 2001-02-12 | 2003-11-14 | 엘지전자 주식회사 | Structure of turbo fan for cassette type air conditioner |
| KR100404119B1 (en) * | 2001-08-24 | 2003-11-03 | 엘지전자 주식회사 | Turbofan, manufacturing method and manufacturing mold thereof |
| KR100414106B1 (en) * | 2001-08-23 | 2004-01-07 | 엘지전자 주식회사 | Turbofan, manufacturing method and manufacturing mold thereof |
| KR100421391B1 (en) * | 2001-12-20 | 2004-03-09 | 엘지전자 주식회사 | Turbofan, manufacturing method and manufacturing mold thereof |
| JP4317676B2 (en) * | 2002-03-26 | 2009-08-19 | 東芝キヤリア株式会社 | Turbo fan for air conditioner |
| KR100460587B1 (en) * | 2002-04-19 | 2004-12-09 | 삼성전자주식회사 | Turbofan and mold for manufacturing the same |
| US7108482B2 (en) * | 2004-01-23 | 2006-09-19 | Robert Bosch Gmbh | Centrifugal blower |
| CN100519136C (en) * | 2005-03-29 | 2009-07-29 | 三菱电机株式会社 | Formed mould, fan manufacturing method |
| KR20060135250A (en) * | 2005-06-24 | 2006-12-29 | 엘지전자 주식회사 | Turbo fan of air conditioner |
| KR100706879B1 (en) * | 2005-09-26 | 2007-04-12 | 삼성전자주식회사 | Axial flow fan and manufacturing mold for the axial flow fan |
| JP4556884B2 (en) * | 2006-03-01 | 2010-10-06 | パナソニック株式会社 | Electric blower |
| CN100453818C (en) * | 2006-03-03 | 2009-01-21 | 山东大学 | Technological process of making wing type centrifugal vane whell |
| EP2202044B2 (en) | 2008-12-24 | 2014-05-07 | Grundfos Management A/S | Method for injection moulding of a pump propeller |
| JP2011174386A (en) * | 2010-02-23 | 2011-09-08 | Nippon Densan Corp | Impeller of centrifugal fan and method of molding the same |
| JP5111582B2 (en) * | 2010-09-28 | 2013-01-09 | 日立アプライアンス株式会社 | Centrifugal fan, air conditioner equipped with the same and centrifugal fan mold |
| TWI450810B (en) * | 2011-10-19 | 2014-09-01 | Chui Tsai Chiu | Mold drive structure |
| DE102014006756A1 (en) | 2014-05-05 | 2015-11-05 | Ziehl-Abegg Se | Impeller for diagonal or centrifugal fans, injection molding tool for producing such an impeller and device with such an impeller |
| US10227879B2 (en) * | 2016-02-11 | 2019-03-12 | General Electric Company | Centrifugal compressor assembly for use in a turbine engine and method of assembly |
| JP7004595B2 (en) * | 2018-03-09 | 2022-01-21 | 三菱重工業株式会社 | Impellers, centrifugal compressors, and gas turbines |
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|---|---|---|---|---|
| JPS63278825A (en) * | 1987-05-12 | 1988-11-16 | Nissan Motor Co Ltd | Resin composition for impeller |
| CN2097307U (en) * | 1990-12-07 | 1992-02-26 | 沈阳鼓风机厂 | Centrifugal triaxial impeller |
| CN2135077Y (en) * | 1992-09-25 | 1993-06-02 | 中国石油化工总公司兰州炼油化工总厂 | Compacting tool set for impeller of glass fibre reinforced plastic |
| DE4446110A1 (en) * | 1993-12-28 | 1995-06-29 | Mitsubishi Electric Corp | Cooling fan for i.c. engine AC generator |
-
1996
- 1996-03-19 JP JP06248696A patent/JP3192083B2/en not_active Expired - Fee Related
-
1997
- 1997-02-15 MY MYPI97000567A patent/MY124098A/en unknown
- 1997-03-18 CN CN97103500A patent/CN1074097C/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63278825A (en) * | 1987-05-12 | 1988-11-16 | Nissan Motor Co Ltd | Resin composition for impeller |
| CN2097307U (en) * | 1990-12-07 | 1992-02-26 | 沈阳鼓风机厂 | Centrifugal triaxial impeller |
| CN2135077Y (en) * | 1992-09-25 | 1993-06-02 | 中国石油化工总公司兰州炼油化工总厂 | Compacting tool set for impeller of glass fibre reinforced plastic |
| DE4446110A1 (en) * | 1993-12-28 | 1995-06-29 | Mitsubishi Electric Corp | Cooling fan for i.c. engine AC generator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3192083B2 (en) | 2001-07-23 |
| MY124098A (en) | 2006-06-30 |
| JPH09250492A (en) | 1997-09-22 |
| CN1163356A (en) | 1997-10-29 |
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Owner name: HITACHI APPLIANCES, INC. Free format text: FORMER OWNER: HITACHI,LTD. Effective date: 20150625 Free format text: FORMER OWNER: HITACHI SHIMIZU ENGINEERING K. K. Effective date: 20150625 |
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Effective date of registration: 20160913 Address after: Hongkong, China Patentee after: Johnson Controls Hitachi air conditioning technology (Hongkong) Co., Ltd. Address before: Tokyo, Japan, Japan Patentee before: Hitachi Appliances Inc. |
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