CN204953818U - Exhaust structure of cylinder body die cavity - Google Patents
Exhaust structure of cylinder body die cavity Download PDFInfo
- Publication number
- CN204953818U CN204953818U CN201520680508.0U CN201520680508U CN204953818U CN 204953818 U CN204953818 U CN 204953818U CN 201520680508 U CN201520680508 U CN 201520680508U CN 204953818 U CN204953818 U CN 204953818U
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- die cavity
- cylinder body
- core
- oil duct
- air flue
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Abstract
The utility model belongs to the technical field of casting process and an exhaust structure of cylinder body die cavity is disclosed, including the cylinder body die cavity, the cylinder body includes psammitolite and close - over, psammitolite and the cooperation of close - over overlap joint, the psammitolite top is equipped with the oil duct core, close - over inside is equipped with outer exhaust duct, the oil duct core is with the cooperation of psammitolite overlap joint and be equipped with air flue and air flue, outer exhaust duct is located the positive top of air flue on the oil duct core. The utility model discloses a this kind of exhaust structure, fine solution excessive psammitolite send gaseous die cavity and the indisputable liquid of getting into, the unable smooth exhaust condition, the effectual useless rate of material that has reduced product gas pocket defect.
Description
Technical field
The utility model relates to a kind of exhaust structure, is specifically related to a kind of exhaust structure of cylinder body die cavity, belongs to Casting Technology field.
Background technology
According to engine demand, current part engine cylinder-body adopts the refrigerating mode that water-cooled is dominated, oil cooling is auxiliary, in order to increase oil cooling effect, and realizes cast iron housing lightweight, cylinder body spill port adopts communication type cavity structure, because core is greatly thick, gas forming amount is large, is all vented by die cavity, effect is very undesirable, product very easily produces gas hole defect, and by the continuous exploration of the influence factors such as core sand formula, core quality, coating, pouring temperature and improvement, gas hole defect still just reduces slightly
For described above, the utility model is by carrying out part transformation to sand core structure, add " L " type ventilation device, exhaust structure is added directly over oil duct core print, core is all discharged by special exhaust passage by thermogenetic gas, and most gas no longer enters in die cavity and iron liquid, thus reduces gas hole defect probability, for this reason, we propose a kind of exhaust structure of cylinder body die cavity.
Utility model content
The technical problems to be solved in the utility model overcomes existing defect, a kind of exhaust structure of cylinder body die cavity is provided, by carrying out part transformation to sand core structure, add " L " type ventilation device, directly over oil duct core print, add exhaust structure, core is all discharged by special exhaust passage by thermogenetic gas, most gas no longer enters in die cavity and iron liquid, thus reduce gas hole defect probability, effectively can solve the problem in background technology.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
The utility model provides a kind of exhaust structure of cylinder body die cavity, comprise cylinder body die cavity, described cylinder body comprises core and close-over, described core and close-over overlap joint coordinate, described core top is provided with oil duct core print, described close-over inside is provided with outer discharge duct, and described oil duct core print and core overlap and coordinate and be provided with air flue and air flue, and described outer discharge duct is positioned at the positive top of oil duct core print epithelium healing.
As a kind of optimal technical scheme of the present utility model, described core is " L " type ventilation device.
The beneficial effect that the utility model reaches is: a kind of exhaust structure of cylinder body die cavity, by outer blast pipe, well solve and enter die cavity and iron liquid and situation about cannot discharge smoothly because excessive core sends gas, by carrying out part transformation to sand core structure, add " L " type ventilation device, the material effectively reducing product air holes defect gives up rate.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for description, is used from explanation the utility model, does not form restriction of the present utility model with embodiment one of the present utility model.
In the accompanying drawings:
Fig. 1 is the exhaust structure overall structure schematic diagram of a kind of cylinder body die cavity described in the utility model embodiment;
Number in the figure: 1, cylinder body die cavity; 2, close-over; 3, core; 4, oil duct core print; 5, outer blast pipe; 6, air flue; 7, air flue.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the utility model, and be not used in restriction the utility model.
Embodiment: refer to Fig. 1, the exhaust structure of a kind of cylinder body die cavity of the utility model, comprise cylinder body die cavity 1, it is characterized in that, described cylinder body die cavity 1 comprises core 3 and close-over 2, and described core 3 and close-over 2 overlap and coordinate, described core 3 top is provided with oil duct core print 4, described core 3 inside is provided with outer discharge duct 5, and described oil duct core print 4 and core 3 overlap and coordinate and be provided with air flue 6 and air flue 7, and described outer discharge duct 5 is positioned at the positive top of oil duct core print 4 epithelium healing 6.
Described oil duct core print 4 is " L " type ventilation device.By carrying out part transformation to core 4 structure, add " L " type ventilation device, directly over oil duct core print 4, add exhaust structure, oil duct 4 is all discharged by special exhaust passage by thermogenetic gas, most gas no longer enters in die cavity 1 and iron liquid.
It should be noted that, the utility model is a kind of exhaust structure of cylinder body die cavity, by outer discharge duct 5, well solve and enter die cavity 1 and iron liquid and situation about cannot discharge smoothly because excessive oil duct 4 sends gas, by carrying out part transformation to oil duct core print 4 structure, add " L " type ventilation device, the material effectively reducing product air holes defect gives up rate.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. the exhaust structure of a cylinder body die cavity, comprise cylinder body die cavity (1), it is characterized in that, described cylinder body die cavity (1) comprises core (3) and close-over (2), described core (3) and close-over (2) overlap joint coordinate, described core (3) top is provided with oil duct core print (4), described core (3) inside is provided with outer discharge duct (5), described oil duct core print (4) and core (3) overlap and coordinate and be provided with air flue (6) and air flue (7), described outer discharge duct (5) is positioned at the positive top of oil duct core print (4) epithelium healing (6).
2. the exhaust structure of a kind of cylinder body die cavity according to claim 1, is characterized in that, described oil duct core print (4) is provided with " L " type ventilation device that air flue (6) and air flue (7) form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520680508.0U CN204953818U (en) | 2015-09-02 | 2015-09-02 | Exhaust structure of cylinder body die cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520680508.0U CN204953818U (en) | 2015-09-02 | 2015-09-02 | Exhaust structure of cylinder body die cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204953818U true CN204953818U (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520680508.0U Active CN204953818U (en) | 2015-09-02 | 2015-09-02 | Exhaust structure of cylinder body die cavity |
Country Status (1)
| Country | Link |
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| CN (1) | CN204953818U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772644A (en) * | 2016-05-16 | 2016-07-20 | 上海皮尔博格有色零部件有限公司 | Air pumping system with side core air cylinder cover die |
| CN110899627A (en) * | 2019-12-11 | 2020-03-24 | 黄波 | Exhaust structure of engine cylinder body oil duct core |
| CN111761030A (en) * | 2020-05-29 | 2020-10-13 | 芜湖市容川机电科技股份有限公司 | Horizontal sand core for casting and molding and pouring method thereof |
-
2015
- 2015-09-02 CN CN201520680508.0U patent/CN204953818U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772644A (en) * | 2016-05-16 | 2016-07-20 | 上海皮尔博格有色零部件有限公司 | Air pumping system with side core air cylinder cover die |
| CN105772644B (en) * | 2016-05-16 | 2018-05-04 | 上海皮尔博格有色零部件有限公司 | Extract system with side core cylinder cover die |
| CN110899627A (en) * | 2019-12-11 | 2020-03-24 | 黄波 | Exhaust structure of engine cylinder body oil duct core |
| CN110899627B (en) * | 2019-12-11 | 2021-05-07 | 黄波 | Exhaust structure of engine cylinder body oil duct core |
| CN111761030A (en) * | 2020-05-29 | 2020-10-13 | 芜湖市容川机电科技股份有限公司 | Horizontal sand core for casting and molding and pouring method thereof |
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