CN203778697U - Top casting feeding structure for planetary frame - Google Patents
Top casting feeding structure for planetary frame Download PDFInfo
- Publication number
- CN203778697U CN203778697U CN201420153882.0U CN201420153882U CN203778697U CN 203778697 U CN203778697 U CN 203778697U CN 201420153882 U CN201420153882 U CN 201420153882U CN 203778697 U CN203778697 U CN 203778697U
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- CN
- China
- Prior art keywords
- planet carrier
- planetary frame
- die cavity
- casting mold
- feeding structure
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- Expired - Fee Related
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Abstract
The utility model relates to a top casting feeding structure for a planetary frame. The top casting feeding structure comprises a casting mold, wherein a pouring system of the casting mold comprises a main straight pouring gate, horizontal branch pouring gates, arc-shaped transverse pouring gates and an inner sprue connected with a molded cavity; the arc-shaped transverse pouring gates stretch over the outer sides of two connection ribs in the planetary frame; two ends of each arc-shaped transverse pouring gate are communicated with the molded cavity through the inner sprue and an inner pouring gate; four reversely-circular-truncated-cone-shaped dead heads are formed in the connection ribs of the planetary frame in the molded cavity and are annularly distributed by taking a center shaft of the planetary frame as a circle center; a molded core forming a planetary shaft hole of the planetary frame is arranged between every two of the dead heads. The top casting feeding structure for the planetary frame has the advantages that the dead heads achieve gas exhaust effect before the molded cavity is filled with iron water; after the molded cavity is filled with iron water, new iron water from the inner sprue enters the dead heads, so that shrinkage and contraction of the connection ribs of the planetary frame in a casting process are avoided, and the yield and the production efficiency of planetary casting are improved.
Description
Technical field
The utility model relates to a kind of planet carrier teeming feeding structure, is that the little and feeding of a kind of impulsive force is strong specifically, makes the dowel size of planet carrier qualified and without the planet carrier teeming feeding structure of shrinkage cavity shrinkage porosity.
Background technology
Planet carrier is an important part in Gear Planet Transmission, and its size is large, and the moment of face bearing is maximum, and the structural design of planet carrier has considerable influence to the bearing capacity of the load distribution between each planetary gear and mechanism, vibration etc.
The structure of planet carrier, shown in Fig. 1 and Fig. 2, mainly upper dish 1, lower wall 2 and the dowel 3 that connects upper and lower dish, consist of, upper dish and lower wall correspondence on the position of dowel of staggering is provided with planet axis hole 4, and upper and lower Pan center correspondence is provided with central shaft hole 5.
Planet carrier mainly adopts casting, in process of production, due to its architectural characteristic, its dowel part is thicker large, at this position, easily form the casting flaws such as shrinkage porosite, shrinkage cavity, therefore research and develop a kind of can avoid the running gate system of castability defect or feeding structure 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 dowel of planet carrier of can avoiding and in casting process, produces the planet carrier teeming feeding structure of shrinkage porosite and shrinkage cavity.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of planet carrier teeming feeding structure comprises casting mold, the die cavity of described casting mold forms planet carrier die cavity, and its innovative point is: the running gate system of casting mold comprises the ingate that total sprue, level are propped up running channel, arc cross gate and connected die cavity; Described total sprue props up dealings by level and arc cross gate is communicated with ingate; Described arc cross gate is across the wherein outside of two dowels of planet carrier, and the two ends of arc cross gate are communicated with die cavity through ingate and ingate;
Described die cavity is provided with rising head in the dowel position of planet carrier, and rising head is inverted round stage shape, and described rising head has four, and the central shaft of planet carrier of take distributes ringwise as the center of circle, is equipped with the core that forms row type frame planet axis hole between two rising heads; Rising head plays scavenging action before molten iron underfill die cavity, at molten iron, is full of after die cavity, and the molten iron being newly filled with from ingate enters rising head, and feeding is solidified at the thermojunction place that is beneficial to planet carrier, avoids producing shrinkage cavity and porosity on the dowel of planet carrier.
Further, the die cavity of described casting mold has three, is product word shape and is distributed on casting mold, and described total sprue is arranged between three die cavities.
The utility model has the advantage of: this planet carrier teeming feeding structure has prevented the shrinkage cavity and porosity that the dowel part of planet carrier causes because riser feeding is poor, planet carrier casting qualification rate is improved, and the die cavity of casting mold has three, being product word shape distributes, guaranteeing that planet carrier casts on qualified basis, improved the production efficiency of product.
Accompanying drawing explanation
Fig. 1 is the top view of planet carrier.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the top view of a kind of planet carrier teeming feeding structure of the present utility model.
The specific embodiment
Schematic diagram is as shown in Figure 3 known, a kind of planet carrier teeming feeding structure of the present utility model, and the running gate system of casting mold comprises the ingate that total sprue 6, level are propped up running channel 7, arc cross gate 8 and connected die cavity; Total sprue 6 props up dealings 7 by level and arc cross gate 8 is communicated with ingate; Arc cross gate 8 is across the wherein outside of two dowels of planet carrier, and the two ends of arc cross gate 8 are communicated with die cavity 9 through ingate and ingate.
Die cavity 9 is provided with rising head 10 in the dowel position of planet carrier, rising head 10 is inverted round stage shape, rising head 10 has four, the central shaft of planet carrier of take distributes ringwise as the center of circle, between two rising heads 10, be equipped with the core 11 that forms row type frame planet axis hole, in the present embodiment, the die cavity 9 of casting mold has three, is product word shape and is distributed on casting mold, and total sprue 6 is arranged between three die cavities.Rising head 10 plays scavenging action before molten iron underfill die cavity 9, at molten iron, is full of after die cavity 9, and the molten iron being newly filled with from ingate enters rising head 9, does feeding when solidify at the thermojunction place that is beneficial to planet carrier.
Claims (2)
1. a planet carrier teeming feeding structure, comprises casting mold, and the die cavity of described casting mold forms planet carrier die cavity, it is characterized in that: the running gate system of casting mold comprises the ingate that total sprue, level are propped up running channel, arc cross gate and connected die cavity; Described total sprue props up dealings by level and arc cross gate is communicated with ingate; Described arc cross gate is across the wherein outside of two dowels of planet carrier, and the two ends of arc cross gate are communicated with die cavity through ingate and ingate;
Described die cavity is provided with rising head in the dowel position of planet carrier, and rising head is inverted round stage shape, and described rising head has four, and the central shaft of planet carrier of take distributes ringwise as the center of circle, is equipped with the core that forms row type frame planet axis hole between two rising heads.
2. a kind of planet carrier teeming feeding structure according to claim 1, is characterized in that: the die cavity of described casting mold has three, and be product word shape and be distributed on casting mold, described total sprue is arranged between three die cavities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420153882.0U CN203778697U (en) | 2014-04-01 | 2014-04-01 | Top casting feeding structure for planetary frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420153882.0U CN203778697U (en) | 2014-04-01 | 2014-04-01 | Top casting feeding structure for planetary frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203778697U true CN203778697U (en) | 2014-08-20 |
Family
ID=51314925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420153882.0U Expired - Fee Related CN203778697U (en) | 2014-04-01 | 2014-04-01 | Top casting feeding structure for planetary frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203778697U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325085A (en) * | 2014-11-05 | 2015-02-04 | 浙江佳力风能技术有限公司 | Gating system with multistage split transverse runners |
| CN104439096A (en) * | 2014-09-15 | 2015-03-25 | 宝鼎重工股份有限公司 | Casting forming mould and method of planet carrier for lifting gearbox of self-elevating offshore platform |
-
2014
- 2014-04-01 CN CN201420153882.0U patent/CN203778697U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439096A (en) * | 2014-09-15 | 2015-03-25 | 宝鼎重工股份有限公司 | Casting forming mould and method of planet carrier for lifting gearbox of self-elevating offshore platform |
| CN104325085A (en) * | 2014-11-05 | 2015-02-04 | 浙江佳力风能技术有限公司 | Gating system with multistage split transverse runners |
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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: 20140820 Termination date: 20160401 |