CN203245333U - Curve type oil passage hole gear casing evanescent model - Google Patents
Curve type oil passage hole gear casing evanescent model Download PDFInfo
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- CN203245333U CN203245333U CN 201320207179 CN201320207179U CN203245333U CN 203245333 U CN203245333 U CN 203245333U CN 201320207179 CN201320207179 CN 201320207179 CN 201320207179 U CN201320207179 U CN 201320207179U CN 203245333 U CN203245333 U CN 203245333U
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- oil passage
- hole
- type oil
- curve type
- shaped form
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Abstract
The utility model relates to a curve type oil passage hole gear casing evanescent model, and belongs to the technical field of evanescent mode design. The model comprises a gear casing module, wherein the gear casing module adopts a two-half type assembly structure; a curve type oil passage through-hole used for lubricating is formed in the gear casing module at the intersection line of the two-half type assembly structure. The model is characterized in that a curve type oil passage sand core matched with the shape of the curve type oil passage through-hole is arranged in the curve type oil passage through-hole; the surface of the curve type oil passage sand core is coated with a high temperature coating layer. The model has the advantages that the structure is simple; before the sand box is buried, the process of filling the curve type oil passage sand core is carried out to the curve type oil passage through-hole in the gear casing module, and the surface of the curve type oil passage sand core is coated with the high temperature coating layer, so that the compacting degree of the sand core in the curve type oil passage through-hole is effectively ensured, the immersion of the molten iron during the casting is prevented, the oil supply of the curve type oil passage through-hole is enabled to be unblocked, and the service life of a gear in a gear casing is ensured.
Description
Technical field
The utility model relates to a kind of shaped form oil hole gear housing evaporative pattern, belongs to the design field of evaporative pattern.
Background technology
At present, in casting industry, mostly adopt the polystyrene foam model as lost foam casting, its cost is low, makes things convenient for analogue formation.In the gear hub body casting technique, gear housing domestic demand will arrange a place or many places shaped form oil hole, with convenient lubricated, usually the casting method that adopts is: utilize conventional evaporative pattern production, namely adopt the wheel housing module of two halves formula assembly structure, offer shaped form oil duct through hole at the gear hub module at two halves formula assembly structure intersection place, then dip-coating paint in shaped form oil duct through hole, last heap sand moulding can be carried out casting work.There are the following problems to adopt this method: owing to being shaped form oil duct through hole, very inconvenient during back-up sand, and the sand of filling consolidation not, molten iron can immerse, thereby cause shaped form oil duct through hole easily to stop up, be not easy cleaning, in use shaped form oil duct through hole fuel feeding does not freely cause the gear in the gear housing to can not get sufficient lubrication, has a strong impact on service life of gear yet.
The utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: a kind of shaped form oil hole gear housing evaporative pattern is provided, it is simple in structure, avoids the not phenomenon of consolidation of shaped form oil duct through hole back-up sand, has guaranteed that the fuel feeding of shaped form oil duct through hole is unimpeded.
Shaped form oil hole gear housing evaporative pattern described in the utility model, comprise the gear hub module, the gear hub module is two halves formula assembly structure, gear hub module at two halves formula assembly structure intersection place offers for lubricated shaped form oil duct through hole, it is characterized in that: be provided with the shaped form oil passage sand core that is complementary with its shape in the shaped form oil duct through hole, shaped form oil passage sand core surface scribbles the high-temperature coating bed of material.
The utility model is unimpeded for the fuel feeding of further guaranteeing shaped form oil duct through hole, and preferred described shaped form oil passage sand core two is outer being exposed on the shaped form oil duct through hole two-port respectively.
Compared with prior art, the utlity model has following beneficial effect:
Pass through the utility model, it is simple in structure, owing to doing before sandbox buries underground, the shaped form oil duct through hole in the gear hub module has been carried out the processing of space filling curve type oil passage sand core, and scribble the high-temperature coating bed of material on shaped form oil passage sand core surface, so effectively guaranteed the core degree of packing in the shaped form oil duct through hole, the immersion of molten iron when having prevented casting, after casting is complete, directly the shaped form oil passage sand core is gone out in the shaped form oil duct through hole and got final product, improve the smoothness of shaped form oil duct through hole, guaranteed that the fuel feeding of shaped form oil duct through hole is unimpeded, guaranteed the service life of gear in the gear housing.
Description of drawings
Fig. 1 is cross-sectional view of the present utility model;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Among the figure: 1, gear hub module 2, shaped form oil passage sand core 3, the high-temperature coating bed of material.
The specific embodiment
Below the utility model is described in further detail by specific embodiment; but not in order to limit the utility model; all within the utility model spirit and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
As shown in Figure 1 and Figure 2, shaped form oil hole gear housing evaporative pattern, comprise gear hub module 1, gear hub module 1 is two halves formula assembly structure, gear hub module 1 at two halves formula assembly structure intersection place offers for lubricated shaped form oil duct through hole, be provided with the shaped form oil passage sand core 2 that is complementary with its shape in the shaped form oil duct through hole, shaped form oil passage sand core 2 surfaces scribble the high-temperature coating bed of material 3.
In the present embodiment, described shaped form oil passage sand core 2 two are outer being exposed on the shaped form oil duct through hole two-port respectively.
When making shaped form oil hole gear housing evaporative pattern, gear hub module 1 with two halves formula assembly structure separates first, correspondence is offered shaped form oil duct groove (when the gear hub module 1 of two halves formula assembly structure is bonded together again, the two halves groove has just consisted of a shaped form oil duct through hole), then make and shaped form oil duct hole size, the shaped form oil passage sand core 2 that shape conforms to, being coated with on shaped form oil passage sand core 2 surfaces is the high-temperature coating bed of material 3, and then shaped form oil passage sand core 2 is placed in one of them shaped form oil duct groove, gear hub module 1 with two halves formula assembly structure is bonded together at last, can carry out further work.
Claims (2)
1. shaped form oil hole gear housing evaporative pattern, comprise gear hub module (1), gear hub module (1) is two halves formula assembly structure, gear hub module (1) at two halves formula assembly structure intersection place offers for lubricated shaped form oil duct through hole, it is characterized in that: be provided with the shaped form oil passage sand core (2) that is complementary with its shape in the shaped form oil duct through hole, shaped form oil passage sand core (2) surface scribbles the high-temperature coating bed of material (3).
2. shaped form oil hole gear housing evaporative pattern according to claim 1 is characterized in that: described shaped form oil passage sand core (2) two is outer being exposed on the shaped form oil duct through hole two-port respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320207179 CN203245333U (en) | 2013-04-23 | 2013-04-23 | Curve type oil passage hole gear casing evanescent model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320207179 CN203245333U (en) | 2013-04-23 | 2013-04-23 | Curve type oil passage hole gear casing evanescent model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203245333U true CN203245333U (en) | 2013-10-23 |
Family
ID=49371794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320207179 Expired - Fee Related CN203245333U (en) | 2013-04-23 | 2013-04-23 | Curve type oil passage hole gear casing evanescent model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203245333U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117629A (en) * | 2013-04-23 | 2014-10-29 | 重庆双腾机械制造有限公司 | Curve type oil-passage hole gear shell EPC (expandable pattern casting) mold |
| CN110640085A (en) * | 2019-10-29 | 2020-01-03 | 贵州安吉航空精密铸造有限责任公司 | Investment casting process for hollow casting |
| CN111112554A (en) * | 2020-01-13 | 2020-05-08 | 陈秋 | Method for manufacturing piston by using lost foam |
-
2013
- 2013-04-23 CN CN 201320207179 patent/CN203245333U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117629A (en) * | 2013-04-23 | 2014-10-29 | 重庆双腾机械制造有限公司 | Curve type oil-passage hole gear shell EPC (expandable pattern casting) mold |
| CN110640085A (en) * | 2019-10-29 | 2020-01-03 | 贵州安吉航空精密铸造有限责任公司 | Investment casting process for hollow casting |
| CN111112554A (en) * | 2020-01-13 | 2020-05-08 | 陈秋 | Method for manufacturing piston by using lost foam |
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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 |
Granted publication date: 20131023 Termination date: 20150423 |
|
| EXPY | Termination of patent right or utility model |