CN202479447U - Side frame sand core for rail wagon - Google Patents
Side frame sand core for rail wagon Download PDFInfo
- Publication number
- CN202479447U CN202479447U CN201220072707XU CN201220072707U CN202479447U CN 202479447 U CN202479447 U CN 202479447U CN 201220072707X U CN201220072707X U CN 201220072707XU CN 201220072707 U CN201220072707 U CN 201220072707U CN 202479447 U CN202479447 U CN 202479447U
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- CN
- China
- Prior art keywords
- side frame
- core
- sand core
- cavity structure
- bogie side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a side frame sand core for a rail wagon. The side frame sand core comprises an outer hook inner cavity structure, a triangular hole inner cavity structure and a belly surface structure, and is characterized in that the outer hook inner cavity structure, the triangular hole inner cavity structure and the belly surface structure form an overall sand core which is subjected to integrated formation. By utilizing the side frame sand core, the surface is smooth, casting rags and fins caused by using a combined diverse sand core can be effectively avoided, the internal quality of casting can be improved, and the working strength is lightened.
Description
Technical field
The utility model relates to railway freight-car bogie side frame core.
Background technology
Bogie side frame is the railway freight-car important spare part, is the thin-walled shell construction, and material is a low-alloy steel.In the railway goods train bogie design, bogie side frame and bolster are main component part, also are main stressed parts, and railway freight-car is in service under different situations, and bogie side frame must sustain various tests.
Along with the China railways lorry develops to the high-speed overload direction; Require higher to important spare part product quality such as bogie side frame and combination property; Therefore; Be railway freight-car development need after satisfying, must improve product quality, the combination property of important spare parts such as bogie side frame, thereby guarantee railway freight-car high-speed overload reliability of operation, security.
Railway freight-car all adopts core as die casting production with bogie side frame both at home and abroad.At present, railway freight-car bogie side frame core all adopts split core casting technique both at home and abroad, that is, each core part is made core box respectively, subsequently each core core box is combined.Like this, the core and the core junction of bogie side frame inner chamber each several part are prone to casting flaws such as fash, crackle, sand holes, increase later stage housekeeping amount, reduce production efficiency, reduce product quality, bring potential safety hazard.Casting flaws such as fash, crackle, sand holes perplex bogie side frame manufacturing enterprise always, therefore, are necessary existing bogie side frame core is improved.
Summary of the invention
The utility model technical problem to be solved is the deficiency that has a kind of bogie side frame foundry engieering now in order to overcome, and a kind of railway freight-car bogie side frame core is provided, and effectively improves bogie side frame product quality and combination property.
For solving the problems of the technologies described above; The present invention provides a kind of railway freight-car bogie side frame core; Comprise outer crotch inner-cavity structure, delthyrium inner-cavity structure and belly face structure, it is characterized in that, the integral sand core of said outer crotch inner-cavity structure, delthyrium inner-cavity structure and the integrated moulding of belly face structure.
The integrated global formation structure of the utility model; The core smooth surface; Avoided using diversification to make up casting overlap, fash that core brings, the core cavity smooth surface is smooth-going, reduces core cavity surface burning into sand, pore, crack defect significantly; Alleviate the casting cleaning working strength, improve casting quality.
Description of drawings
Further specify below in conjunction with accompanying drawing and the specific embodiment technical scheme the utility model.
Fig. 1 is the structural representation of the bogie side frame integral core of the utility model.
The specific embodiment
The utility model bogie side frame integral core is as shown in Figure 1, outer crotch inner-cavity structure-about outer crotch core 1, delthyrium inner-cavity structure-delthyrium core 2 and belly face structure-belly face core 3 be linked to be and form a bogie side frame integral core.Avoid the delthyrium core of prior art, clung to being connected each other of hook core and belly face core outward, caused product casting flaws such as fash, crackle, sand holes to occur.
In order further to support the bogie side frame core of the described global formation of claims; The integral forming method of bogie side frame integral core is below described; May further comprise the steps: at first, require to make the structure-integrated integral core core box of outer crotch inner-cavity structure, delthyrium inner-cavity structure and belly face that comprises bogie side frame according to the bogie side frame casting technique.
Then, the integral core core box is cooperated with core shooter, external chill, chromite sand and the arbor that plays booster action are positioned in the core box up and down thickness greater than the place, part of average thickness.
Again, carry out matched moulds, add sand, penetrate sand, sclerosis, die sinking, plunger tip, the core overall time penetrated makes.Core shooter adopts the triethylamine hardening resin sand.
At last, carry out the integral core surface treatment by manual work, processing comprises whole inspection, detail sanding.
The protection domain of the utility model is not limited to the above embodiments, and obviously, those skilled in the art can carry out various changes and distortion and not break away from the scope and the spirit of the utility model the utility model.If these changes and distortion belong in the scope of the utility model claim and equivalent technologies thereof, then the intention of the utility model also comprises these changes and is out of shape interior.
Claims (1)
1. a railway freight-car bogie side frame core comprises outer crotch inner-cavity structure, delthyrium inner-cavity structure and belly face structure, it is characterized in that the integral sand core of said outer crotch inner-cavity structure, delthyrium inner-cavity structure and the integrated moulding of belly face structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220072707XU CN202479447U (en) | 2012-03-01 | 2012-03-01 | Side frame sand core for rail wagon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220072707XU CN202479447U (en) | 2012-03-01 | 2012-03-01 | Side frame sand core for rail wagon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202479447U true CN202479447U (en) | 2012-10-10 |
Family
ID=46953908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220072707XU Expired - Lifetime CN202479447U (en) | 2012-03-01 | 2012-03-01 | Side frame sand core for rail wagon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202479447U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554134A (en) * | 2012-03-01 | 2012-07-11 | 南车长江车辆有限公司 | Rail wagon side frame sand core and manufacturing method thereof |
-
2012
- 2012-03-01 CN CN201220072707XU patent/CN202479447U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554134A (en) * | 2012-03-01 | 2012-07-11 | 南车长江车辆有限公司 | Rail wagon side frame sand core and manufacturing method thereof |
| WO2013127217A1 (en) * | 2012-03-01 | 2013-09-06 | 南车长江车辆有限公司 | Side-frame sand core for railway freight train and method of manufacturing same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430212 Jiangxia Economic Development Zone, Wuhan, the new bridge area of the city of Hubei Patentee after: CRRC YANGTZE CO., LTD. Address before: 430212 Jiangxia Economic Development Zone, Wuhan, the new bridge area of the city of Hubei Patentee before: China South Locomotive & Rolling Stock Changjiang Vehicle Company |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |