CN204842863U - Reducing gear box casing pouring structure - Google Patents
Reducing gear box casing pouring structure Download PDFInfo
- Publication number
- CN204842863U CN204842863U CN201520298730.4U CN201520298730U CN204842863U CN 204842863 U CN204842863 U CN 204842863U CN 201520298730 U CN201520298730 U CN 201520298730U CN 204842863 U CN204842863 U CN 204842863U
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- CN
- China
- Prior art keywords
- gate
- cross gate
- cast
- die cavity
- box casing
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Abstract
The utility model relates to a reducing gear box casing pouring structure, including sand box, sand mould, psammitolite and the gating system, the pouring die cavity is one total four, and the top of sprue has a pouring basin among the the gating system, and this pouring basin lies in four pouring die cavities centers, and the bottom of sprue is connected with the center part of cross gate, the by -path of cross gate is connected with the flow gate, supplementary watering is connected with the cross gate and also be connected with supplementary flow gate, flow gate and supplementary flow gate are linked together with the pouring die cavity, the rising head is located the cross gate rather than the by -path cross section, the psammitolite is hollow structure, and this psammitolite is close runner one end and is a closed end face. The utility model has the advantages of: the utility model discloses having increased supplementary cross gate, having reduced the production of cold shut defect, also the part has reduced the hollow core of the production of thermal center defect, its adoption to and the exhaust needle of equal difference distribution, reduced the production of gas pocket defect.
Description
Technical field
The utility model relates to a kind of reduction box casing, particularly a kind of reduction box casing cast structure.
Background technology
Reductor is the mechanical driving device of national economy numerous areas, industry related products classification includes all kinds of gear reduction unit, planet-gear speed reducer and worm decelerating machine, also include various dedicated transmission, as speeder, arrangements for speed regulation and all kinds of compound gearings etc. comprising flexible gearing.Product support area relates to metallurgy, coloured, the industry such as coal, building materials, boats and ships, water conservancy, electric power, engineering machinery and petrochemical industry.
Reduction box is the necessary component of reductor, main employing casting, this housing comprises enclosure body and an input and two outputs, in process of production, because its wall thickness of its architectural characteristic is only 6mm, be easy to produce cold shut defects, although, heighten pouring temperature and can reduce cold shut defects, but the generation rate of thermal center defect can be increased.Therefore research and develop a kind of cast structure of castability defect of can avoiding imperative, through retrieval related documents, do not find the technical scheme identical with the utility model.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of reduction box casing cast structure can avoiding castability defect.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of reduction box casing cast structure, and its innovative point is: comprise sandbox, sand mold, core and running gate system;
Described sandbox, sand mold and the core be built in sand mold together constitute cast die cavity, and cast die cavity has altogether four, in matrix distribution, are communicated with between four cast die cavities by running gate system;
Described running gate system comprises sprue, cross gate and is separately positioned on the auxiliary cross gate between adjacent two the cast die cavities in both sides for a pair, described cast die cavity has an ingate at reduction box casing input flange, and the both sides of inner side output end face have a pair auxiliary ingate in reduction box casing; Described sprue is vertically set on the center of four cast die cavities, and its top has a pouring basin, and its bottom is connected with the ingate of corresponding cast die cavity by the cross gate of both sides and a cross gate; Described cross gate is perpendicular to cross gate; Described auxiliary cross gate is H type, the running channel B be connected between a pair running channel A by the running channel A and of pair of parallel setting forms, wherein the input of running channel B is connected with cross gate, and wherein the two ends of a pair running channel A are connected with the auxiliary ingate of corresponding cast die cavity respectively; Described core is hollow structure, and this core is a Closed End close to cast gate one end.
Further, described sand mold upper surface is distributed with the exhaust needle of vertical direction away from running channel place equal difference.
The utility model has the advantage of:
(1) the utility model by arranging four of matrix distribution cast die cavities in sandbox, can one-shot forming four reduction box casings, increases work efficiency;
(2) the utility model adds auxiliary cross gate, improves the structure of cast runner, decreases the generation of cold shut defects, and uniform heat distribution when making cast, also part decreases the generation of thermal center defect;
(3) exhaust needle of the hollow type core of the utility model employing, and equal difference distribution, is conducive to exhaust, decreases the generation of gas hole defect.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of reduction box casing cast of the utility model structure.
Detailed description of the invention
As shown in Figure 1, the utility model discloses a kind of reduction box casing cast structure, comprise sandbox 1, sand mold 2, core 3 and running gate system 4; Sandbox 1, sand mold 2 and the core 3 be built in sand mold 2 together constitute cast die cavity, and cast die cavity has altogether four, in matrix distribution, are communicated with between four cast die cavities by running gate system 4; Running gate system comprises sprue 9, cross gate 11 and auxiliary cross gate 5, cast die cavity has an ingate 12 at reduction box casing input flange, and the both sides of inner side output end face have the auxiliary ingate 6 be separately positioned on for a pair between adjacent two the cast die cavities in both sides in reduction box casing; Sprue 9 is vertically set on the center of four cast die cavities, and its top has a pouring basin 10, and its bottom is connected with the ingate 12 of corresponding cast die cavity by the cross gate 11 of both sides and a cross gate 13; Prop up cross gate 13 perpendicular to cross gate 11; Auxiliary cross gate 5 is in H type, the running channel B be connected between a pair running channel A by the running channel A and of pair of parallel setting forms, wherein the input of running channel B is connected with cross gate, and wherein the two ends of a pair running channel A are connected with the auxiliary ingate 6 of corresponding cast die cavity respectively; Core 3 is hollow structure, and this core 3 is a Closed End close to cast gate one end; Sand mold 2 upper surface is distributed with the exhaust needle 7 of vertical direction away from running channel place equal difference.
More than show and describe general principle of the present utility model and principal character.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. a reduction box casing cast structure, is characterized in that: comprise sandbox, sand mold, core and running gate system;
Described sandbox, sand mold and the core be built in sand mold together constitute cast die cavity, and cast die cavity has altogether four, in matrix distribution, are communicated with between four cast die cavities by running gate system;
Described running gate system comprises sprue, cross gate and is separately positioned on the auxiliary cross gate between adjacent two the cast die cavities in both sides for a pair, described cast die cavity has an ingate at reduction box casing input flange, and the both sides of inner side output end face have a pair auxiliary ingate in reduction box casing; Described sprue is vertically set on the center of four cast die cavities, and its top has a pouring basin, and its bottom is connected with the ingate of corresponding cast die cavity by the cross gate of both sides and a cross gate; Described cross gate is perpendicular to cross gate; Described auxiliary cross gate is H type, the running channel B be connected between a pair running channel A by the running channel A and of pair of parallel setting forms, wherein the input of running channel B is connected with cross gate, and wherein the two ends of a pair running channel A are connected with the auxiliary ingate of corresponding cast die cavity respectively;
Described core is hollow structure, and this core is a Closed End close to cast gate one end.
2. reduction box casing cast structure according to claim 1, is characterized in that: described sand mold upper surface is distributed with the exhaust needle of vertical direction away from running channel place equal difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520298730.4U CN204842863U (en) | 2015-05-11 | 2015-05-11 | Reducing gear box casing pouring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520298730.4U CN204842863U (en) | 2015-05-11 | 2015-05-11 | Reducing gear box casing pouring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204842863U true CN204842863U (en) | 2015-12-09 |
Family
ID=54733460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520298730.4U Expired - Fee Related CN204842863U (en) | 2015-05-11 | 2015-05-11 | Reducing gear box casing pouring structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204842863U (en) |
-
2015
- 2015-05-11 CN CN201520298730.4U patent/CN204842863U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20170511 |