CN204711111U - Belt pulley casting mould - Google Patents
Belt pulley casting mould Download PDFInfo
- Publication number
- CN204711111U CN204711111U CN201520458088.1U CN201520458088U CN204711111U CN 204711111 U CN204711111 U CN 204711111U CN 201520458088 U CN201520458088 U CN 201520458088U CN 204711111 U CN204711111 U CN 204711111U
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- ingate
- cross gate
- casting chamber
- wheel rim
- sprue
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Abstract
The utility model relates to belt pulley casting mould, comprise sprue (1), cross gate (2), ingate (3), wheel rim casting chamber (5) and spoke casting chamber (6), the upper end of sprue (1) is provided with cup (4), sprue (1) is perpendicular to the middle part of cross gate (2), one end of ingate (3) is communicated with cross gate (2) inside, the other end of ingate (3) is overlapped on the upper surface of wheel rim casting chamber (5), spoke casting chamber (6) is arranged at the inner side of wheel rim casting chamber (5), the center of spoke casting chamber (6) is provided with centre bore (7) along its axis direction, the lateral wall of described wheel rim casting chamber (5) is provided with multiple tracks V-type groove (8).The utility model has the advantage of: Filling Processes of Castings is steady, without defects such as shrinkage cavity and porosities in the foundry goods after cooled and solidified, utilize the graphitizing of liquid to eliminate the tendency of the shrinkage cavity and porosity defect easily occurred, thus avoid using rising head.
Description
Technical field
The utility model relates to belt pulley production technical field, particularly belt pulley casting mould.
Background technology
The material that existing belt pulley foundry goods uses mostly is HT200, i.e. casting pig material.The casting character of casting pig, machinability, wearability are all better than other all kinds of cast iron.Solidification mode due to casting pig is consecutive solidification, and its graphitization expansion Chang Buneng offsets the volume contraction of process of setting completely, often needs the external world to carry out feeding in process of setting.
In existing running gate system, the design of ingate is all adopt rectangle or cylinder form design, and this kind of design can not form thermal pressure and thermograde, also easily causes dispel the heat faster, iron liquid of ingate more first to solidify, thus stop the flowing of follow-up iron liquid and supplement; In addition, in belt pulley traditional design, all have employed rising head, increase the consumption of iron liquid, easily introduce introduced contaminants and gas, form inner clamps foreign material and gas hole defect.The running gate system of rising head is all employ in the production process that belt pulley is traditional.Usually, Feeder Design depends on the shape of foundry goods and the experience of master worker, is intended to supplementary iron liquid, reduce orifice hole defect.But in actual production operation, be easy to introduce introduced contaminants and gas from rising head, form field trash and porosity defects at cast-internal.
Utility model content
The purpose of this utility model is the shortcoming overcoming prior art, a kind of belt pulley casting mould is provided, graphitization expansion can be made full use of carry out self feeding of foundry goods thus realize consecutive solidification, Filling Processes of Castings is steady, without defects such as shrinkage cavity and porosities in foundry goods after cooled and solidified, easily occur that in inside and outside junction the position of shrinkage cavity also utilizes the graphitizing of liquid to eliminate the tendency of the shrinkage cavity and porosity defect easily occurred, thus avoid using rising head.
The purpose of this utility model is achieved through the following technical solutions: belt pulley casting mould, comprise sprue, cross gate, ingate, wheel rim casting chamber and spoke casting chamber, the upper end of sprue is provided with cup, sprue is perpendicular to the middle part of cross gate, the lower end of sprue is communicated with cross gate inside, cross gate is outer ring crescent shape structure, ingate is arranged at the inner side of cross gate, one end of ingate is communicated with cross gate inside, the other end of ingate is overlapped on the upper surface in wheel rim casting chamber, and ingate and wheel rim are cast, and chamber is inner to be communicated with, spoke casting chamber is arranged at the inner side in wheel rim casting chamber, spoke casting chamber casts chamber with wheel rim and is communicated with, the center in spoke casting chamber is provided with centre bore along its axis direction, the lateral wall in described wheel rim casting chamber is provided with multiple tracks V-type groove.
Described sprue, cross gate are 1:1.7:3.5 with the cross-sectional area ratio of ingate.
The cross section of described cross gate is rectangle, and its depth-width ratio scope is 1.5 ~ 2:1.
The thickness of described ingate is less than the thickness of cross gate, and the lower surface of ingate and the lower surface of cross gate concordant.
The utility model has the following advantages:
1, make full use of graphitization expansion carry out self feeding of foundry goods thus realize consecutive solidification, ingate height is fixed, and when filling type, ingate pressure is less, little to die cavity scouring force, Filling Processes of Castings is steady, without defects such as shrinkage cavity and porosities in the foundry goods after cooled and solidified.
2, easily occur in inside and outside junction that the position of shrinkage cavity also utilizes the graphitizing of liquid to eliminate the tendency of the shrinkage cavity and porosity defect easily occurred, thus avoid the use of rising head, make operating process simple, technological requirement is lower, production efficiency improves, and has saved metal consumption.
3, V-type groove is set on the outer wall in wheel rim casting chamber, directly obtains belt pulley with groove blank, follow-up roughing operation can be reduced on the one hand, surface radiating area can be increased on the other hand, accelerate molten metal setting rate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the internal structure schematic diagram of belt pulley die cavity;
In figure: 1-sprue, 2-cross gate, 3-ingate, 4-cup, 5-wheel rim casting chamber, 6-spoke casting chamber, 7-centre bore, 8-V type groove.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described, but protection domain of the present utility model is not limited to the following stated.
As depicted in figs. 1 and 2, belt pulley casting mould, comprise sprue 1, cross gate 2, ingate 3, wheel rim casting chamber 5 and spoke casting chamber 6, the upper end of sprue 1 is provided with cup 4, sprue 1 is perpendicular to the middle part of cross gate 2, the lower end of sprue 1 is communicated with cross gate 2 inside, cross gate 2 is outer ring crescent shape structure, ingate 3 is arranged at the inner side of cross gate 2, one end of ingate 3 is communicated with cross gate 2 inside, the other end of ingate 3 is overlapped on the upper surface in wheel rim casting chamber 5, and ingate 3 and wheel rim are cast, and chamber 5 is inner to be communicated with, spoke casting chamber 6 is arranged at the inner side in wheel rim casting chamber 5, spoke casting chamber 6 casts chamber 5 with wheel rim and is communicated with, the center in spoke casting chamber 6 is provided with centre bore 7 along its axis direction, the lateral wall in described wheel rim casting chamber 5 is provided with multiple tracks V-type groove 8.
The cross-sectional area of described sprue 1, cross gate 2 and ingate 3 than being 1:1.7:3.5, through arranging section area ratio, can the pressure of control balancing preparing metal liquid in each runner and flow velocity, there is not turbulent phenomenon when being convenient to fill type.Guarantee that the pressure that foundry goods starts most concentrates on cross gate 2, pressure at both sides value is substantially identical, along with the carrying out of filling type, as a whole, in cavity filling process, whole foundry goods is all in pressure constant state, pressure is all only present in cross gate 2, and such foundry goods can not exist the phenomenon of partial inflation, ensure that the uniformity of whole foundry goods.
The cross section of described cross gate 2 is rectangle, and its depth-width ratio scope is 1.5 ~ 2:1.
The thickness of described ingate 3 is less than the thickness of cross gate 2, and the lower surface of ingate 3 is concordant with the lower surface of cross gate 2.
The course of work of the present utility model is as follows: molten metal flows into cross gate 2 from sprue 1, scatter from cross gate 2, cross gate 2 is entered from both direction, liquid enters ingate 3 from cross gate 2, and slowly fill type, in whole cavity filling process, Temperature Distribution is uniform, not having dispersing liquid when foundry goods lower floor is not full of completely springs up to foundry goods upper strata, in whole cavity filling process, the flowing of liquid is steady, do not occur " the disorderly water " phenomenon in general casting technique, and this running gate system uniformity of temperature profile, to fill type steady.Along with the prolongation of filling time, the cavity filling process of foundry goods is transitioned into foundry goods upper strata gradually from foundry goods lower floor, terminates until fill type.
Claims (4)
1. belt pulley casting mould, it is characterized in that: comprise sprue (1), cross gate (2), ingate (3), wheel rim casting chamber (5) and spoke casting chamber (6), the upper end of sprue (1) is provided with cup (4), sprue (1) is perpendicular to the middle part of cross gate (2), the lower end of sprue (1) is communicated with cross gate (2) inside, cross gate (2) is outer ring crescent shape structure, ingate (3) is arranged at the inner side of cross gate (2), one end of ingate (3) is communicated with cross gate (2) inside, the other end of ingate (3) is overlapped on the upper surface of wheel rim casting chamber (5), and ingate (3) and wheel rim are cast, and chamber (5) is inner to be communicated with, spoke casting chamber (6) is arranged at the inner side of wheel rim casting chamber (5), spoke casting chamber (6) is cast chamber (5) with wheel rim and is communicated with, the center of spoke casting chamber (6) is provided with centre bore (7) along its axis direction, the lateral wall of described wheel rim casting chamber (5) is provided with multiple tracks V-type groove (8).
2. belt pulley casting mould according to claim 1, is characterized in that: described sprue (1), cross gate (2) are 1:1.7:3.5 with the cross-sectional area ratio of ingate (3).
3. belt pulley casting mould according to claim 1, is characterized in that: the cross section of described cross gate (2) is rectangle, and its depth-width ratio scope is 1.5 ~ 2:1.
4. belt pulley casting mould according to claim 1, is characterized in that: the thickness of described ingate (3) is less than the thickness of cross gate (2), and the lower surface of ingate (3) is concordant with the lower surface of cross gate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520458088.1U CN204711111U (en) | 2015-06-30 | 2015-06-30 | Belt pulley casting mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520458088.1U CN204711111U (en) | 2015-06-30 | 2015-06-30 | Belt pulley casting mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204711111U true CN204711111U (en) | 2015-10-21 |
Family
ID=54310140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520458088.1U Active CN204711111U (en) | 2015-06-30 | 2015-06-30 | Belt pulley casting mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204711111U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848370A (en) * | 2019-04-03 | 2019-06-07 | 洛阳乾中新材料科技有限公司 | A kind of sand casting casting external form moulding tooling |
-
2015
- 2015-06-30 CN CN201520458088.1U patent/CN204711111U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848370A (en) * | 2019-04-03 | 2019-06-07 | 洛阳乾中新材料科技有限公司 | A kind of sand casting casting external form moulding tooling |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |