CN108907105A - A kind of running gate system and pouring procedure of Capstan rotor casting - Google Patents

A kind of running gate system and pouring procedure of Capstan rotor casting Download PDF

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Publication number
CN108907105A
CN108907105A CN201811048386.8A CN201811048386A CN108907105A CN 108907105 A CN108907105 A CN 108907105A CN 201811048386 A CN201811048386 A CN 201811048386A CN 108907105 A CN108907105 A CN 108907105A
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CN
China
Prior art keywords
sprue
rotor casting
ingate
casting
running gate
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Granted
Application number
CN201811048386.8A
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Chinese (zh)
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CN108907105B (en
Inventor
郭平
曹先峰
王文允
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Hangzhou Xiziforward Electrical Pml Precision Mechanism Ltd
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Hangzhou Xiziforward Electrical Pml Precision Mechanism Ltd
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Priority to CN201811048386.8A priority Critical patent/CN108907105B/en
Publication of CN108907105A publication Critical patent/CN108907105A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/08Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
    • B22C9/082Sprues, pouring cups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/02Sand moulds or like moulds for shaped castings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/08Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
    • B22C9/086Filters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/22Moulds for peculiarly-shaped castings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

The invention discloses the running gate systems and pouring procedure of a kind of Capstan rotor casting, wherein, the running gate system includes type chamber corresponding with rotor casting shape, the intracavitary sand core being equipped with for forming spindle through-hole of the type, it further include the sprue cup, sprue, ingate being sequentially communicated, the sprue extends along rotor casting main shaft, passes through sand core and is connected to ingate, the ingate is extended to by the end of sprue to be connected to type chamber.The running gate system and pouring procedure of Capstan rotor casting provided by the invention, it can be improved the utilization rate of potting syrup, the product yield of rotor casting is increased to 88% or so by the 75% of the prior art, injection system structure is small, convenient for post-processing circulation and secondary melts down use.

Description

A kind of running gate system and pouring procedure of Capstan rotor casting
Technical field
The present invention relates to casting technology fields, and in particular to a kind of running gate system of Capstan rotor casting and casting side Method.
Background technique
In Foundry Production, running gate system is the channel that liquid metal is introduced casting mold type chamber and is opened up in casting mold, In the production cost of casting, therefore cost of raw material accounting about 70% or so reduces the weight of running gate system, improves casting and goes out Product rate reduces the consumption of casting raw material, and economies society is reduced and built to production cost and is of great significance.
In the prior art, when making Capstan rotor casting, by liquid metal from the excircle of Capstan rotor casting Enter water, ingate is separated into six, and running gate system is complicated and huge, is not easy to melt down, reduces casting yield rate and mould type Plate utilization rate, increases production cost, reduces production efficiency.
Summary of the invention
The present invention provides the running gate systems and pouring procedure of a kind of Capstan rotor casting, in the base for guaranteeing product quality On plinth, change thinking, significantly simplified running gate system, rotor casting yield rate is high, substantially reduces production cost.
A kind of running gate system of Capstan rotor casting, the rotor casting have spindle through-hole, the running gate system packet Type chamber corresponding with rotor casting shape is included, the intracavitary sand core being equipped with for forming spindle through-hole of the type, further includes successively connecting Logical sprue cup, sprue, ingate, the sprue is axially extending along rotor casting, is connected to by way of sand core with ingate, institute It states ingate and is extended to by the end of sprue and is connected to type chamber.
The sprue of the running gate system is arranged in the spindle through-hole of rotor casting, and is not provided with cross gate, casting Liquid is directly entered the intracavitary portion of type by sprue and ingate, and the profile of running gate system reduces, and the circulation path of potting syrup shortens, Improve the product yield of rotor casting.
Due to being not provided with cross gate, product of casting in use, do not need to be crushed, can be used directly as foundry returns.
In use, add potting syrup into sprue by sprue cup, potting syrup pass sequentially through sprue and ingate into Enter the intracavitary completion casting of type.Sprue cup can be used to accept the high temperature potting syrup from pouring ladle, prevent molten iron from splashing and overflowing, side Just it is poured.
Preferably, the position that the sprue is connected with ingate is equipped with filter.
The filter effectively removes the bulk inclusion in potting syrup, while can adsorb fine impurities, plays current stabilization Effect, reduces the defect of rotor casting, improves the quality of rotor casting.
The sprue is axially extending along rotor casting, and the both ends of sprue each extend over out rotor casting main shaft and correspond to The axial end face of side.
Sprue axially penetrates through rotor casting along rotor casting, and sprue is by potting syrup from the axial side of rotor casting Lead to the other side of rotor casting axial direction.Under use state, sprue is arranged vertically.
Preferably, the end of the sprue is connected with the first distribution cavity, the beginning of the ingate and the first distribution Chamber connection, the end of ingate are connected to type chamber, and the filter is set in the first distribution cavity.
First distribution cavity is set, filter is set in the first distribution cavity, can make to be existed by the potting syrup that sprue flows down Current stabilization herein.Preferably, being connected between first distribution cavity and sprue by the second distribution cavity, first distribution cavity Internal diameter be greater than the internal diameter of sprue, the internal diameter of second distribution cavity is greater than the internal diameter of sprue and less than the first distribution cavity Internal diameter.
Second distribution cavity is used for the dregs that storage section is stopped by filter.First distribution cavity and the second distribution Chamber is cylinder, the first distribution cavity, the second distribution cavity and the arrangement of sprue coaxial line, sprue, the second distribution cavity, first point The internal diameter of cloth chamber is gradually increased.Such second distribution cavity and the first distribution cavity form limited step, and filter is limited to first It is moved not in distribution cavity.
Preferably, the ingate is divided into around equally distributed 3~4 tunnel of rotor casting main-shaft axis.Further preferably, The ingate is divided into around equally distributed 4 tunnel of rotor casting main shaft.
The speed of the ingate control potting syrup filled-type chamber and direction adjust the temperature at each position of rotor casting and coagulate Gu sequence, plays the role of feeding to rotor casting.
Preferably, the cross-sectional area ratio of the sprue and ingate is 1.05~1.3:1.
The cross-sectional area ratio of the sprue and ingate, the specially cross-sectional area of sprue and each road ingate are total The ratio of sectional area.
By the way that the cross-sectional area ratio of sprue and ingate is arranged, speed and the side of potting syrup filled-type chamber can be regulated and controled To the temperature and solidification sequence at adjusting each position of rotor casting play the role of feeding to rotor casting.
Preferably, the sand core extends spindle through-hole along the both ends of rotor casting axial direction, sand core is towards ingate One end be equipped with the limited step that offsets with type chamber main shaft corresponding end-faces.
In the axial direction of rotor casting, the position of sand core is limited by limited step, prevents it from occurring to send movement.
The present invention also provides a kind of pouring procedure of Capstan rotor casting, the rotor casting has spindle through-hole, Include the following steps:
Potting syrup enters from sprue cup, flows to axial direction by rotor casting axial direction side along the sprue for passing through spindle through-hole It is intracavitary to flow to type corresponding with rotor casting shape for the other side after then turning back by ingate.
When potting syrup flows, only the path of circulation is shortened, is reduced without cross gate by sprue and ingate The usage amount of potting syrup.
The extending direction of sprue and ingate is parallel or substantially parallel, and flow direction of the potting syrup in ingate is compared It is turned back for flow direction in sprue, and potting syrup only passes through the first distribution cavity and the after sprue outflow Two distribution cavities are cached, and are then entered in type chamber by ingate, shorten the flow path of potting syrup as much as possible, are improved The utilization efficiency of potting syrup.
Preferably, the position that the sprue is connected with ingate is equipped with filter, the ingate, which is divided into, to rotate Sub- equally distributed 3~4 tunnel of casting main-shaft axis, after potting syrup is flowed out by sprue, by filter, is diverted into each road and pours Inflow type is intracavitary after turning back in road.
The filter effectively removes the bulk inclusion in potting syrup, while can adsorb fine impurities, plays current stabilization Effect, reduces the defect of rotor casting, improves the quality of rotor casting.
The end of ingate is connected at the axial end face of rotor casting spindle-type chamber namely sprue is adjacent with ingate Closely, cross gate is not provided between sprue and ingate.
Using 3~4 road ingates, filling velocity and direction can be effectively controlled, guarantees that potting syrup is evenly distributed, to casting Part effectively plays feeding effect, to guarantee product quality.
Preferably, the potting syrup is molten iron, pouring temperature is 1340 DEG C~1380 DEG C, and the duration of pouring is 30~35 Second, soaking time is 4~5h.
Using above-mentioned manufacturing parameter, it is ensured that the product quality of the utility model pouring technology production.
The running gate system and pouring procedure of Capstan rotor casting provided by the invention, can be improved the utilization of potting syrup The product yield of rotor casting is increased to 88% or so by the 75% of the prior art by rate, and injection system structure is small, after being convenient for Processing circulation and secondary melt down use.
Detailed description of the invention
Fig. 1 is the schematic cross-section of Capstan rotor casting;
Fig. 2 is the top view of the running gate system of Capstan rotor casting in embodiment 1;
Fig. 3 is the sectional view along A-A in Fig. 2.
In figure:1, main shaft;2, magnetic part mounting portion;3, spindle through-hole;4, sprue cup;5, sprue;6, sand core;7, it limits Position step;8, distribution cavity;9, filter;10, ingate;11, the second distribution cavity.
Specific embodiment
With reference to the accompanying drawing, the running gate system and pouring procedure of Capstan rotor casting of the present invention are described in detail.
Embodiment 1
As shown in Figure 1, rotor casting includes:Main shaft 1 and the magnetic part mounting portion 2 arranged around main shaft 1, wherein Main shaft 1 has spindle through-hole 3, and the side axial end face of magnetic part mounting portion 2 is concordant with the axial end face of 1 respective side of main shaft, The axial length of magnetic part mounting portion 2 is greater than the axial length of main shaft 1.
As shown in Figure 2 and Figure 3, the running gate system of Capstan rotor casting includes:Type chamber corresponding with rotor casting shape. The type chamber is formed by upper sand mold and lower sand mold mould assembly.
As shown in figure 3, upper sand mold and lower sand mold are separated according to die joint B-B, it is upper sand mold above die joint B-B, point It is lower sand mold below the B-B of type face, after being poured, sand mold and lower sand mold in separation take out casting.
As shown in figure 3, rotor casting type is intracavitary to be equipped with sand core 6, sand core 6 is for forming spindle through-hole 3, and sand core 6 is by upper sand Type extends in lower sand mold, and sand core 6 is located at one end in lower sand mold and is equipped with the limited step to offset with type chamber main shaft axial end face 7。
Sprue cup 4 is equipped on main-shaft axis, sprue cup 4 is located at the top of upper sand mold, and 4 bottom end of sprue cup is connected to sprue 5, Sprue 5 is axially extending along rotor casting, extends to lower sand mold via sand core 6 by upper sand mold, therefore, is formed inside sand core 6 Through-hole, the through-hole belong to a part of sprue 5.Sprue cup 4 is used to accept potting syrup (such as the high-temperature metal from pouring ladle Liquid), it prevents potting syrup from splashing and overflowing, facilitates casting.
Potting syrup is led to the rotor casting axial direction other side from the axial side of rotor casting by sprue 5.
In the present embodiment, sprue 5 is only one, and the end of sprue 5 is connected with 11, first points of the second distribution cavity in turn Cloth chamber 8 and ingate 10, the second distribution cavity 11 are used for the dregs that storage section is stopped by filter, are equipped in the first distribution cavity 8 Filter 9 effectively removes the bulk inclusion in potting syrup by filter 9, while can adsorb fine impurities, plays current stabilization Effect, reduces the defect of rotor casting, improves the quality of rotor casting.
First distribution cavity 8 and the second distribution cavity 11 are cylinder, and the first distribution cavity, the second distribution cavity and sprue are coaxial Line, the internal diameter of the first distribution cavity 8 are greater than the internal diameter of sprue 5, and the internal diameter that the internal diameter of the second distribution cavity 11 is greater than sprue 5 is less than The internal diameter of first distribution cavity 8.
Under use state, the position of the first distribution cavity 8 is lower than the endface position of 1 type chamber of adjacent side rotor casting main shaft, Potting syrup is led into the rotor casting axial direction other side from the axial side of rotor casting using sprue 5.
First distribution cavity 8 is connected to the bottom of sprue 5, and one end of ingate 10 is connected to the first distribution cavity 8, ingate 10 other ends and type chamber connectivity part are located on the axial end face of 1 type chamber of rotor casting main shaft.
Ingate 10 divides for around the axial 10 surrounding rotor casting axis of equally distributed four tunnel namely ingate of rotor casting Central symmetry distribution, ingate 10 with sprue 5 along the axially extending of rotor casting, do not cast along rotor strictly by ingate 10 The axis direction of part extends, and can have a small amount of inclination with relative rotor casting axis, i.e., ingate 10 is substantially along rotor casting axis Line direction extends.
5 cross-sectional area of sprue and the ratio of each 10 total cross-sectional area of road ingate are 1.2:1.
Under use state, magnetic part mounting portion 2 and the axial end face of 1 flush of main shaft are located above, and the other side is axial End face is located below, and after in the first distribution cavity 8 of inflow of sprue 5, turn back to flow into along ingate 10 directly up turns potting syrup Sub- 1 type chamber of casting main shaft, and the gradually full whole type chambers of filling, complete casting.
Embodiment 2
A kind of pouring procedure of Capstan rotor casting, it is raw using clay sand using running gate system as described in Example 1 Producing line machinery flask molding.
Pouring procedure includes the following steps:
Potting syrup enters from sprue cup 4, is flowed along the sprue 5 passed through in spindle through-hole 3 by rotor casting axial direction side Running gate system is flowed to after turning back by ingate 10 after the filter filtering in the first distribution cavity 8 to the axial other side In type corresponding with rotor casting shape it is intracavitary, complete casting.
Potting syrup is molten iron, and pouring temperature is 1340 DEG C~1380 DEG C, and the duration of pouring is 30~35 seconds, and rotor casting is pouring Soaking time in injection system is 4~5h.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party Formula carries out change and modification appropriate.Therefore, the invention is not limited to the specific embodiments disclosed and described above, to this Some modifications and changes of invention should also be as falling into the scope of the claims of the present invention.In addition, although this specification In use some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way.

Claims (10)

1. a kind of running gate system of Capstan rotor casting, the rotor casting has spindle through-hole, and the running gate system includes Type chamber corresponding with rotor casting shape, the intracavitary sand core being equipped with for forming spindle through-hole of the type, which is characterized in that also wrap The sprue cup, sprue, ingate being sequentially communicated are included, the sprue is axially extending along rotor casting, pours across sand core with interior Road connection, the ingate is extended to by the end of sprue to be connected to type chamber.
2. the running gate system of Capstan rotor casting as described in claim 1, which is characterized in that the sprue and ingate The position being connected is equipped with filter.
3. the running gate system of Capstan rotor casting as claimed in claim 2, which is characterized in that the end of the sprue connects It is connected to the first distribution cavity, the beginning of the ingate is connected to the first distribution cavity, and the end of ingate is connected to type chamber, the mistake Filter is set in the first distribution cavity.
4. the running gate system of Capstan rotor casting as claimed in claim 3, which is characterized in that first distribution cavity and straight It is connected between running channel by the second distribution cavity, the internal diameter of first distribution cavity is greater than the internal diameter of sprue, second distribution The internal diameter of chamber is greater than the internal diameter of sprue and less than the internal diameter of the first distribution cavity.
5. the running gate system of Capstan rotor casting as described in claim 1, which is characterized in that the ingate, which is divided into, to rotate Sub- equally distributed 3~4 tunnel of casting main-shaft axis.
6. the running gate system of Capstan rotor casting as described in claim 1, which is characterized in that the sprue and ingate Cross-sectional area ratio be 1.05~1.3:1.
7. the running gate system of Capstan rotor casting as described in claim 1, which is characterized in that the sand core is along rotor casting Spindle through-hole is extended at axial both ends, and sand core is equipped with the limit to offset with type chamber main shaft corresponding end-faces towards one end of ingate Position step.
8. a kind of pouring procedure of Capstan rotor casting, the rotor casting has spindle through-hole, which is characterized in that including such as Lower step:
Potting syrup enters from sprue cup, and the sprue that edge passes through spindle through-hole is flowed to axial another by rotor casting axial direction side It is intracavitary to flow to type corresponding with rotor casting shape for side after then turning back by ingate.
9. the pouring procedure of Capstan rotor casting as claimed in claim 8, which is characterized in that the sprue and ingate The position being connected is equipped with filter, and the ingate is divided into around equally distributed 3~4 tunnel of rotor casting main-shaft axis, casting After liquid is flowed out by sprue, by filter, it is intracavitary to be diverted into inflow type after turning back in each road ingate.
10. the pouring procedure of Capstan rotor casting as claimed in claim 8, which is characterized in that the potting syrup is molten iron, Pouring temperature is 1340 DEG C~1380 DEG C, and the duration of pouring is 30~35 seconds, and soaking time is 4~5h.
CN201811048386.8A 2018-09-10 2018-09-10 Casting system and casting method for traction machine rotor casting Active CN108907105B (en)

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CN201811048386.8A CN108907105B (en) 2018-09-10 2018-09-10 Casting system and casting method for traction machine rotor casting

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CN201811048386.8A CN108907105B (en) 2018-09-10 2018-09-10 Casting system and casting method for traction machine rotor casting

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CN108907105B CN108907105B (en) 2024-05-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109454205A (en) * 2018-12-13 2019-03-12 淮海工业集团有限公司 A kind of sand mold of revolution solid of curved surface

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CN202087772U (en) * 2011-05-23 2011-12-28 株洲联诚集团有限责任公司 Metal mould gravity casting mould for traction motor end cover of 380 km/h bullet train
CN103449287A (en) * 2013-09-18 2013-12-18 苏州市通润机械铸造有限公司 Integrated traction machine base, sand mold structure and casting technology of integrated traction machine engine base
CN203459629U (en) * 2013-07-31 2014-03-05 四川省祥业机械铸造有限公司 Gating system of round revolved body casting
JP2014083811A (en) * 2012-10-25 2014-05-12 Apic Yamada Corp Mold die and resin mold method for motor core
CN105268948A (en) * 2014-12-30 2016-01-27 新兴重工湖北三六一一机械有限公司 Aluminum flywheel shell low-pressure metal mold
CN206200080U (en) * 2016-11-09 2017-05-31 济南圣泉集团股份有限公司 Running gate system
CN206253594U (en) * 2016-12-10 2017-06-16 安顺学院 A kind of annular cast casting mould
CN206464506U (en) * 2016-12-10 2017-09-05 安顺学院 A kind of casting mold suitable for annular cast
CN107309394A (en) * 2017-08-23 2017-11-03 湖南财经工业职业技术学院 Long cylinder ironcasting casting die of the inner chamber with muscle and casting method
CN209050066U (en) * 2018-09-10 2019-07-02 杭州西子富沃德精密机械有限公司 A kind of running gate system of Capstan rotor casting

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5626657A (en) * 1979-08-10 1981-03-14 Aichi Keigokin Kk Casting method
CN101530893A (en) * 2009-04-29 2009-09-16 淮阴工学院 Gating system for light alloy castings of wheels
CN202087772U (en) * 2011-05-23 2011-12-28 株洲联诚集团有限责任公司 Metal mould gravity casting mould for traction motor end cover of 380 km/h bullet train
JP2014083811A (en) * 2012-10-25 2014-05-12 Apic Yamada Corp Mold die and resin mold method for motor core
CN203459629U (en) * 2013-07-31 2014-03-05 四川省祥业机械铸造有限公司 Gating system of round revolved body casting
CN103449287A (en) * 2013-09-18 2013-12-18 苏州市通润机械铸造有限公司 Integrated traction machine base, sand mold structure and casting technology of integrated traction machine engine base
CN105268948A (en) * 2014-12-30 2016-01-27 新兴重工湖北三六一一机械有限公司 Aluminum flywheel shell low-pressure metal mold
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CN206253594U (en) * 2016-12-10 2017-06-16 安顺学院 A kind of annular cast casting mould
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109454205A (en) * 2018-12-13 2019-03-12 淮海工业集团有限公司 A kind of sand mold of revolution solid of curved surface
CN109454205B (en) * 2018-12-13 2024-01-26 淮海工业集团有限公司 Sand mould of curved surface revolution body

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