CN114799078B - Die for manufacturing fan hub - Google Patents
Die for manufacturing fan hub Download PDFInfo
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- CN114799078B CN114799078B CN202210340273.5A CN202210340273A CN114799078B CN 114799078 B CN114799078 B CN 114799078B CN 202210340273 A CN202210340273 A CN 202210340273A CN 114799078 B CN114799078 B CN 114799078B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000005266 casting Methods 0.000 claims abstract description 130
- 239000004927 clay Substances 0.000 claims abstract description 88
- 239000004576 sand Substances 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 230000002265 prevention Effects 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 20
- 229910052742 iron Inorganic materials 0.000 abstract description 10
- 238000011010 flushing procedure Methods 0.000 abstract description 7
- 238000005406 washing Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 238000000265 homogenisation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/28—Moulds for peculiarly-shaped castings for wheels, rolls, or rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/106—Vented or reinforced cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/108—Installation of cores
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention provides a die for manufacturing a fan hub, which belongs to the technical field of casting and comprises: the upper box body and the lower box body are respectively provided with an upper cavity and a lower cavity, and the upper cavity and the lower cavity are spliced to form an inner cavity; the casting clay core is arranged in the inner cavity and comprises an upper surface and a lower surface, wherein a first gap is formed between the upper surface and the bottom wall of the upper cavity, and a second gap is formed between the lower surface and the bottom wall of the lower cavity; a tubular runner is located in the inner cavity. According to the invention, the original split casting clay core is changed into the integral clay core, the runner clay core is omitted, and the tubular runner is added, so that the original four gaps are reduced to two gaps, the precision of the casting is improved, sand washing or molten iron flushing is avoided from being formed in the middle of the casting clay core, the molten iron is ensured to be always positioned in the inner cavity, and in addition, the runner clay core is omitted, so that the sand washing problem caused by pressure loss of the casting clay core is avoided.
Description
Technical Field
The invention belongs to the technical field of casting, and relates to a die, in particular to a die for manufacturing a fan hub.
Background
The fan hub is a connecting part for connecting a plurality of fan blades in the wind driven generator, and the size of the fan hub is large, so that the fan hub is required to be completed by adopting a casting method. In the prior art, the casting clay core 300 for manufacturing the fan hub is in a split type, as shown in fig. 1 and 2, because the casting clay core 300 for manufacturing the fan hub is in a split type, the casting upper clay core 330 and the casting lower clay core 340 are formed, so that a mold for manufacturing the fan hub forms four gaps in a cavity, wherein the four gaps are respectively positioned in the gap between the casting upper clay core 330 and the cavity wall of the inner cavity of the upper box body 100, the gap between the casting upper clay core 330 and the casting lower clay core 340, the gap between the casting lower clay core 340 and the pouring channel clay core 500 and the gap between the pouring channel clay core 500 and the cavity wall of the inner cavity of the lower box body 200. Because of the accumulated errors formed by the gaps around, the fan hub after casting is in a larger error, and the fan hub needs to be manually polished and trimmed, so that the labor intensity is increased, and the working efficiency is reduced.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a die capable of reducing the number of gaps, improving the precision of a fan hub formed by casting and reducing the labor intensity.
The aim of the invention can be achieved by the following technical scheme: a mold for fan hub manufacturing, comprising:
the upper box body and the lower box body are respectively provided with an upper cavity and a lower cavity, and an inner cavity is formed by splicing the upper cavity and the lower cavity;
the casting clay core is integrally arranged and installed in the inner cavity, and comprises an upper surface and a lower surface, wherein a first gap is formed between the upper surface and the bottom wall of the upper cavity, and a second gap is formed between the lower surface and the bottom wall of the lower cavity;
the tubular pouring channel is positioned in the inner cavity and at one side of the casting clay core, wherein casting liquid enters the pouring channel from top to bottom and fills the inner cavity from bottom to top.
In the above-mentioned mould for fan wheel hub makes, the tubular runner includes the tubular main runner, and one end is located the cavity, and the other end extends into down in the cavity to be located between the lower surface of foundry goods loam core and the diapire of cavity down, wherein, the one end that is close to foundry goods loam core lower surface on the tubular main runner is provided with a plurality of tubulose and divides to water, and a plurality of tubulose divides to water and be the cyclic annular setting.
In the die for manufacturing the fan hub, the web clay cores are arranged between the cavity walls of the inner cavity and the side surfaces of the casting clay cores and used for filling gaps between the cavity walls of the inner cavity and the side surfaces of the casting clay cores, wherein the number of the side surfaces of the casting clay cores is three, the corresponding web clay cores are arranged on each side surface, one side of each web clay core is attached to each casting clay core, and gaps exist between the other side of each web clay core and the cavity walls of the inner cavity.
In the mold for manufacturing the fan hub, the web plate mud core comprises an upper web plate mud core and a lower web plate mud core, the upper web plate mud core is arranged in the upper cavity, the lower web plate mud core is arranged in the lower cavity, wherein one side of the upper web plate mud core, which faces the cavity wall of the upper cavity, is inclined, and a gap is reserved between the upper web plate mud core and the cavity wall of the upper cavity; the lower mud core of the web is inclined towards one side of the cavity wall of the lower cavity, and a gap is reserved between the lower mud core and the cavity wall of the lower cavity.
In the mold for manufacturing the fan hub, a plane on which one side of the cavity wall of the upper cavity on the web plate is positioned is parallel to a plane on which the cavity wall of the upper cavity on the side is positioned, and a plane on which one side of the cavity wall of the lower cavity on the web plate is positioned is parallel to a plane on which the cavity wall of the lower cavity on the web plate is positioned, wherein one side of the cavity wall of the upper cavity on the web plate extends obliquely from the middle part of the casting core upwards to the upper surface and is close to the upper surface; the upper side of the lower mud core of the web plate, which faces the cavity wall of the lower cavity, extends obliquely from the middle part of the casting mud core to the lower surface and is close to the lower surface.
In the die for manufacturing the fan hub, the bottom wall of the lower cavity is arranged in a step shape to form a first step table surface, a second step table surface and a third step table surface, wherein the first step table surface is used as a surface contacted with the lower surface of the casting clay core, and the second gap is formed between the first step table surface and the lower surface of the casting clay core; the second step table surface is used as an initial plane when casting liquid enters the inner cavity from the tubular branch pouring gate, and the second step table surface is flush with the plane where the outlet of the tubular branch pouring gate is positioned; the third step table top is used as a positioning surface of the lower mud core of the web plate.
In the mold for manufacturing the fan hub, the edge of the first step table surface is recessed in a direction away from the lower surface of the casting loam core to form the annular groove, wherein the annular groove serves as a sand falling prevention groove.
In the above-mentioned mould for fan wheel hub makes, the diapire of last cavity is the echelonment and sets up, and the diapire shape of last cavity is the same with the diapire shape of lower cavity.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the die for manufacturing the fan hub, the original split type casting loam core is changed into the integrated loam core, the pouring gate loam core is omitted, and the tubular pouring gate is additionally arranged, so that the original four gaps are reduced to two gaps, the precision of a casting is improved, sand flushing or molten iron flushing is avoided from being formed in the middle of the casting loam core, molten iron is guaranteed to be always located in an inner cavity, and in addition, the pouring gate loam core is omitted, so that the sand flushing problem caused by pressure loss of the casting loam core is avoided.
(2) Through the tubular main pouring gate and the tubular branch pouring gates, one strand of casting liquid is divided into a plurality of strands and simultaneously and synchronously injected into the inner cavity, so that the liquid level of the casting liquid at each part in the inner cavity synchronously rises, the consistency of the density of the formed casting is ensured, and in addition, the working efficiency of the casting is further improved.
(3) In order to facilitate the core setting of the casting clay core, a web clay core is arranged between the cavity wall of the inner cavity and the side surface of the casting clay core and is used for filling a gap between the cavity wall of the inner cavity and the side surface of the casting clay core, and the casting is also convenient to lift after casting is completed.
(4) The existence of web mud cores is convenient for the lower core of foundry goods mud cores on the one hand, on the other hand can regular foundry goods mud core in the position of cavity down through the web mud core in three direction, guarantees that foundry goods mud core is in the central point of cavity down to guarantee that the wall thickness of foundry goods each position is equivalent with the design wall thickness after the casting is accomplished.
(5) After the casting liquid enters the inner cavity, tension is generated, and the movement of the casting clay core caused by the tension can be eliminated through gaps between the web clay core and the cavity wall of the inner cavity, the corresponding web clay cores are arranged on the three side surfaces of the casting clay core, gaps are reserved between each web clay core and the cavity wall of the inner cavity, and accordingly the homogenization of the gaps on all parts for tension compensation is ensured, the movement of the casting clay core in the inner cavity is avoided, and the quality of castings formed by casting is improved.
Drawings
Fig. 1 is a schematic view of a prior art mold.
Fig. 2 is a schematic view of the structure of fig. 1 from another view angle.
Fig. 3 is a cross-sectional view A-A shown in fig. 2.
Fig. 4 is a schematic structural view of a mold for manufacturing a fan hub according to the present invention.
Fig. 5 is a schematic view of the structure of fig. 4 at another view angle.
Fig. 6 is a sectional view B-B shown in fig. 5.
Fig. 7 is an enlarged view of a portion a in fig. 6.
Fig. 8 is a sectional view C-C shown in fig. 5.
Fig. 9 is a partial schematic view of the structure shown in fig. 4.
In the figure, 100, an upper box body; 110. an upper cavity; 200. a lower box body; 210. a lower cavity; 211. a first stepped mesa; 212. a second stepped mesa; 213. a third stepped mesa; 214. an annular groove; 300. casting clay cores; 310. an upper surface; 320. a lower surface; 330. a clay core is arranged on the casting; 340. casting lower clay core; 350. a side surface; 400. a tubular runner; 410. a tubular main runner; 420. a tubular branch runner; 500. pouring channel mud core; 600. web mud core; 610. a mud core is arranged on the web plate; 620. and (5) laying a mud core on the web.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
As shown in fig. 1 to 3, the mold in the prior art includes an upper case 100 and a lower case 200, and an upper cavity 110 and a lower cavity 210 are respectively provided in the upper case 100 and the lower case 200, wherein a casting upper core 330 is installed in the upper cavity 110, and a casting lower core 340 and a runner core 500 are installed in the lower cavity 210.
Because the casting upper clay core 330 and the casting lower clay core 340 are arranged in a split way, four gaps are formed in the die, and one gap is positioned between the cavity bottom of the upper cavity 110 and the casting upper clay core 330; the gap between the upper casting core 330 and the lower casting core 340 is that the opposite sides of the upper casting core 330 and the lower casting core 340 are large planes, and the large planes are manual sand scraping surfaces, so that the large planes are not easy to be relatively flat, the large planes form a concave-convex surface, and if molten iron flows into the large planes, the molten iron on the upper casting surface 310 is insufficient and is scrapped; three positions are positioned between the casting lower core 340 and the pouring gate core 500, and it is worth mentioning that the pouring gate core 500 is used as an inflow port of molten iron, wherein the mold is used for allowing the molten iron to enter the mold from bottom to top; around between the runner core 500 and the bottom of the lower cavity 210.
It is worth mentioning that due to the existence of the gaps, errors of cast castings are accumulated, so that the sizes of the castings are unstable, and the castings are scrapped.
As shown in fig. 4 to 9, the present invention provides a mold for manufacturing a fan hub, comprising: the upper box body 100 and the lower box body 200 are respectively provided with an upper cavity 110 and a lower cavity 210, and an inner cavity is formed by splicing the upper cavity 110 and the lower cavity 210; the casting clay core 300 is integrally arranged and installed in the inner cavity, and the casting clay core 300 comprises an upper surface 310 and a lower surface 320, wherein a first gap is formed between the upper surface 310 and the bottom wall of the upper cavity 110, and a second gap is formed between the lower surface 320 and the bottom wall of the lower cavity 210; a tubular runner 400 is positioned in the inner cavity and on one side of the casting core 300, wherein casting liquid enters the runner from top to bottom and fills the inner cavity from bottom to top.
It should be noted that, compared with the prior art, the difference of this embodiment is that, firstly, in the prior art, there are 4 gaps (as described above) between the casting clay core 300 located in the inner cavity and the upper and lower cases 100 and 200, and only 2 gaps are between the casting clay core 300 and the upper and lower cases 100 and 200; secondly, in the prior art, the pouring gate sand core 500 is further disposed in the inner cavity, and the pouring gate sand core 500 is present, so that gaps exist between the casting sand core 300 and the pouring gate sand core 500, and between the pouring gate sand core 500 and the bottom wall of the lower cavity 210, respectively, in this embodiment, the pouring gate sand core 500 is omitted, the tubular pouring gate 400 is rearranged, the gaps between the casting sand core 300 and the pouring gate sand core 500 are eliminated through the arrangement of the tubular pouring gate 400, only the gaps between the lower surface 320 of the casting sand core 300 and the bottom wall of the lower cavity 210 remain, and the upper side surface and the lower side surface of the pouring gate sand core 500 in the prior art are also manual sand scraping surfaces, so that surface unevenness is easily caused, and the pouring gate sand core 500 is omitted, and the manual sand scraping procedure is correspondingly eliminated, so that labor intensity is further reduced, and meanwhile, the sand washing caused by the crushing of the pouring gate sand core 500 due to the uneven surface is avoided.
According to the die for manufacturing the fan hub, the original split casting loam core 300 is changed into the integrated loam core, the pouring gate loam core 500 is omitted, and the tubular pouring gate 400 is additionally arranged, so that the original four gaps are reduced to two gaps, the precision of a casting is improved, sand flushing or molten iron flushing is avoided being formed in the middle of the casting loam core 300, molten iron is ensured to be always located in an inner cavity, and in addition, the pouring gate loam core 500 is omitted, so that the sand flushing problem caused by pressure loss is avoided.
Preferably, the tubular runner 400 includes a tubular main runner 410, one end of which is located in the upper cavity 110, and the other end of which extends into the lower cavity 210 and is located between the lower surface 320 of the casting core 300 and the bottom wall of the lower cavity 210, wherein a plurality of tubular sub-runners 420 are disposed on one end of the tubular main runner 410 near the lower surface 320 of the casting core 300, and the plurality of tubular sub-runners 420 are disposed in a ring shape.
In this embodiment, through the tubular main runner 410 and the plurality of tubular branch runners 420, a strand of casting solution is divided into a plurality of strands and simultaneously injected into the inner cavity, so that the liquid level of the casting solution at each part in the inner cavity rises synchronously, the consistency of the density of the cast after molding is ensured, and in addition, the working efficiency of the cast is further improved.
It should be noted that, since the hub is tapered, the caliber of one end of the casting clay core 300 located in the upper cavity 110 is smaller, while the caliber of one end of the casting clay core 300 located in the lower cavity 210 is larger, if the size of the inner cavity is equal to that of the casting clay core 300, the casting clay core 300 cannot be dropped into the lower cavity 210, and if the size of the inner cavity is far greater than that of the casting clay core 300, casting liquid is wasted, therefore, in order to facilitate the dropping of the casting clay core 300, a web clay core 600 is disposed between the cavity wall of the inner cavity and the side surface 350 of the casting clay core 300 to fill the gap between the cavity wall of the inner cavity and the side surface 350 of the casting clay core 300, and also facilitate the demolding of the casting after the casting is completed.
Further, since three fan blades are required to be mounted on the fan hub, three side surfaces 350 are provided on the hub, and three side surfaces 350 are provided on the corresponding casting clay cores 300, so the web clay cores 600 are also provided with three corresponding to the three side surfaces 350 of the casting clay cores 300, wherein when the casting clay cores 300 and the three web clay cores 600 are mounted, the casting clay cores 300 are required to be mounted in the lower cavity 210, then the corresponding web clay cores 600 are inserted into the three side surfaces 350 of the casting clay cores 300, and finally the box 100 is closed.
It should be noted that, the existence of the web mud core 600 is convenient for the lower core of the casting mud core 300 on one hand, and on the other hand, the positions of the casting mud core 300 in the lower cavity 210 can be regulated through the web mud core 600 in three directions, so that the casting mud core 300 is ensured to be positioned at the central position of the lower cavity 210, and the wall thickness of each part of the casting is ensured to be equivalent to the design wall thickness after casting is completed.
Further, when the web core 600 is inserted into the lower cavity 210, one side of the web core 600 is attached to the casting core 300, and a gap exists between the other side of the web core 600 and the cavity wall of the inner cavity, wherein the plane of the side web core 600 facing the cavity wall of the inner cavity is parallel to the plane of the cavity wall of the corresponding inner cavity.
It is worth mentioning that, after the casting liquid gets into interior cavity, produce tension, and through the clearance that exists between web clay core 600 and the interior cavity wall, can eliminate the removal of foundry goods clay core 300 that tension brought, and foundry goods clay core 300 three side surface 350 all is provided with corresponding web clay core 600 moreover, and have the clearance between the cavity wall of every web clay core 600 and interior cavity to guarantee the homogenization of clearance on each position to tension compensation, and then avoid foundry goods clay core 300 to take place to remove in interior cavity, improve the quality of foundry goods that the casting formed.
Preferably, the web core 600 includes a web upper core 610 and a web lower core 620, and the web upper core 610 is installed in the upper cavity 110, and the web lower core 620 is installed in the lower cavity 210, where a side of the web upper core 610 facing the cavity wall of the upper cavity 110 is inclined, and a gap exists between the web upper core and the cavity wall of the upper cavity 110; the web lower core 620 is inclined toward the side of the cavity wall of the lower cavity 210, and a gap exists between the web lower core and the cavity wall of the lower cavity 210.
Further preferably, the plane of the side of the cavity wall of the upper cavity 110 facing the upper cavity 110 on the web plate upper core 610 is parallel to the plane of the cavity wall of the upper cavity 110 on the side, and the plane of the side of the cavity wall of the lower cavity 210 facing the lower cavity 210 on the web plate lower core 620 is parallel to the plane of the cavity wall of the lower cavity 210 on the side, wherein the side of the cavity wall of the upper cavity 110 facing the upper cavity 610 on the web plate extends obliquely from the middle of the casting core 300 to the upper surface 310 and is close to the upper surface 310; the side of the web lower core 620 facing the cavity wall of the lower cavity 210 extends obliquely from the middle of the casting core 300 toward the lower surface 320 and is adjacent to the lower surface 320.
It should be noted that, the bottom wall of the lower cavity 210 is arranged in a step shape, and forms a first step table 211, a second step table 212 and a third step table 213, wherein the first step table 211 is used as a surface contacting with the lower surface 320 of the casting clay core 300, and the second gap is formed between the first step table 211 and the lower surface 320 of the casting clay core 300; the second step surface 212 is used as an initial plane when casting liquid enters the inner cavity from the tubular branch pouring channel 420, and the second step surface 212 is flush with the plane where the outlet of the tubular branch pouring channel 420 is positioned; the third stepped mesa 213 serves as a locating surface for the web lower core 620.
Further, an annular groove 214 is formed by recessing the edge of the first stepped mesa 211 away from the lower surface 320 of the casting core 300, wherein the annular groove 214 serves as a sand drop preventing groove, so that sand drops generated during the core setting process of the casting core 300 are collected in the annular groove 214.
In addition, the bottom wall of the upper cavity 110 is also arranged in a step shape, and three step mesas are also formed, since the description will not be repeated.
It should be noted that the description of the present invention as it relates to "first", "second", "a", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. The terms "coupled," "secured," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally formed, for example; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (3)
1. A mold for fan hub manufacturing, comprising:
the upper box body and the lower box body are respectively provided with an upper cavity and a lower cavity, and an inner cavity is formed by splicing the upper cavity and the lower cavity;
the casting clay core is integrally arranged and installed in the inner cavity, and comprises an upper surface and a lower surface, wherein a first gap is formed between the upper surface and the bottom wall of the upper cavity, and a second gap is formed between the lower surface and the bottom wall of the lower cavity;
the tubular pouring channel is positioned in the inner cavity and at one side of the casting clay core, wherein casting liquid enters the pouring channel from top to bottom and fills the inner cavity from bottom to top;
the tubular pouring gate comprises a tubular main pouring gate, one end of the tubular main pouring gate is positioned in the upper cavity, the other end of the tubular main pouring gate extends into the lower cavity and is positioned between the lower surface of the casting clay core and the bottom wall of the lower cavity, a plurality of tubular branch pouring gates are arranged at one end, close to the lower surface of the casting clay core, of the tubular main pouring gate, and the tubular branch pouring gates are annularly arranged;
a web clay core is arranged between the cavity wall of the inner cavity and the side surface of the casting clay core and used for filling a gap between the cavity wall of the inner cavity and the side surface of the casting clay core, wherein the number of the side surfaces of the casting clay core is three, each side surface is provided with a corresponding web clay core, one side of the web clay core is attached to the casting clay core, and a gap exists between the other side of the web clay core and the cavity wall of the inner cavity;
the web mud core comprises an upper web mud core and a lower web mud core, the upper web mud core is arranged in the upper cavity, the lower web mud core is arranged in the lower cavity, wherein one side of the upper web mud core, which faces the cavity wall of the upper cavity, is inclined, and a gap is reserved between the upper web mud core and the cavity wall of the upper cavity; the lower mud core of the web plate is arranged in an inclined plane towards one side of the cavity wall of the lower cavity, and a gap is reserved between the lower mud core and the cavity wall of the lower cavity;
the bottom wall of the lower cavity is arranged in a step manner to form a first step table top, a second step table top and a third step table top, wherein the first step table top is used as a surface contacted with the lower surface of the casting clay core, and the second gap is formed between the first step table top and the lower surface of the casting clay core; the second step table surface is used as an initial plane when casting liquid enters the inner cavity from the tubular branch pouring gate, and the second step table surface is flush with the plane where the outlet of the tubular branch pouring gate is positioned; the third step table top is used as a positioning surface of the lower mud core of the web plate;
and the edge of the first step table top is recessed in a direction away from the lower surface of the casting loam core to form an annular groove, wherein the annular groove is used as a sand dropping prevention groove.
2. The mold for manufacturing a hub of a blower according to claim 1, wherein a plane of a side of a cavity wall of the upper cavity facing the upper cavity on the web plate and a plane of a cavity wall of the upper cavity on the side are parallel to each other, a plane of a side of a cavity wall of the lower cavity facing the web plate and a plane of a cavity wall of the lower cavity on the side are parallel to each other, and wherein a side of a cavity wall of the upper cavity facing the web plate extends obliquely from a middle part of the upper cavity toward the upper surface of the casting core and is close to the upper surface; the upper side of the lower mud core of the web plate, which faces the cavity wall of the lower cavity, extends obliquely from the middle part of the casting mud core to the lower surface and is close to the lower surface.
3. A mould for manufacturing a fan hub according to claim 1, wherein the bottom wall of the upper cavity is stepped and the bottom wall of the upper cavity is the same as the bottom wall of the lower cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210340273.5A CN114799078B (en) | 2022-04-01 | 2022-04-01 | Die for manufacturing fan hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210340273.5A CN114799078B (en) | 2022-04-01 | 2022-04-01 | Die for manufacturing fan hub |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114799078A CN114799078A (en) | 2022-07-29 |
| CN114799078B true CN114799078B (en) | 2024-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210340273.5A Active CN114799078B (en) | 2022-04-01 | 2022-04-01 | Die for manufacturing fan hub |
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| Country | Link |
|---|---|
| CN (1) | CN114799078B (en) |
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| CN214517460U (en) * | 2021-04-13 | 2021-10-29 | 驻马店中集华骏铸造有限公司 | Wheel hub casting mould |
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| CN114799078A (en) | 2022-07-29 |
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