CN202192227U - Steel rib core structure for casting lightening holes of riding wheel - Google Patents
Steel rib core structure for casting lightening holes of riding wheel Download PDFInfo
- Publication number
- CN202192227U CN202192227U CN2011202526831U CN201120252683U CN202192227U CN 202192227 U CN202192227 U CN 202192227U CN 2011202526831 U CN2011202526831 U CN 2011202526831U CN 201120252683 U CN201120252683 U CN 201120252683U CN 202192227 U CN202192227 U CN 202192227U
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- China
- Prior art keywords
- core
- sand
- lightening holes
- casting
- riding wheel
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- 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 - Fee Related
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Abstract
The utility model relates to a steel rib core structure for casting lightening holes of a riding wheel. The steel rib core structure comprises an upper sand core and a lower sand core; and both the upper sand core and the lower sand core are provided with a whole-circle sand tire which is used for forming concave grooves on the riding wheel. The steel rib core structure is characterized in that three core head grooves are evenly distributed on the whole-circle sand tire of the lower sand core, a circular steel rod is fixed in each core head groove, a chromite sand layer covers the periphery of each circular steel rod, and both the upper sand core and the lower sand core are provided with cooling holes corresponding to two ends of each circular steel rod. In the utility model, the circular steel rods are selected to be covered by chromite sand and serve as formed cores of the lightening holes, the function of the covered chromite sand is equal to the indirect use of external chill, therefore, a good chilling effect is obtained; meanwhile, the two ends of each circular steel rod are respectively provided with a cooling hole, hot air is guided to the atmosphere, so that the heat transfer is fast and lasts long, and the problem of the burning or the decrepitation of the lightening holes can be well solved; furthermore, the steel rib core structure for casting the lightening holes of the riding wheel further has the advantages that the structure is simple, the labor intensity is reduced, the sand cores can be more conveniently taken off, and the like.
Description
Technical field
The utility model belongs to the support roller casting technology field, particularly relates to a kind of steel bone core structure that is used for the casting of support roller lightening hole.
Background technology
Support roller is at the comparatively common a kind of part of casting industry, in order to alleviate the weight of support roller, often on support roller, is provided with the process structure of weight reduction, the lightening hole on the support roller for example, and the lightening hole on the support roller generally adopts the core casting at present.The problem that adopts aforesaid way to exist is: because the support roller wall thickness is very big, and lightening hole is relatively little a lot, therefore often burns to death easily; In case such situation takes place, be the support roller of ZG42CrMo for material, in follow-up scale removal process, be easy to take place lightening hole is hardening cracked; The manpower and materials of labor; So also have only sub-fraction to fix, and most of last result is exactly that whole support roller is scrapped, and suffers heavy losses.
Summary of the invention
The utility model for solve the technical problem that exists in the known technology provide a kind of simple in structure, avoid follow-up and crack, solve the steel bone core knot that is used for the casting of support roller lightening hole that the support roller lightening hole is burnt problem to death.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
A kind of steel bone core structure that is used for the casting of support roller lightening hole; Comprise top core and bottom core; Top, bottom core all have the whole circle close-over of the groove that is used on the moulding support roller, it is characterized in that: be evenly distributed with 3 core print grooves on the whole circle of the bottom core close-over, the interior fixedly round steel bar of said core print groove; The excircle of round steel bar is covered with the chromite layer of sand, is equipped with louvre on the top, two ends of said corresponding circle rod iron, the bottom core.
Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme; Promptly select for use round steel bar to apply the fuse of chromite sand as the lightening hole moulding; Its effect is equivalent to use indirectly external chill, has good chill effect, and the two ends of round steel bar are respectively equipped with louvre simultaneously; Heat is guided to atmosphere; Fast and the longer duration of heat transmission can be good at solving the problem that lightening hole is burnt to death or hardening cracked like this, and the utility model also has advantages such as simple in structure, that the reduction work is slight, comparatively make things convenient for when taking off core in addition.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1, top core; 1-1, close-over; 2, bottom core; 2-1, close-over; 2-2, core print groove; 3, round steel bar; 4, chromite layer of sand; 5, louvre.
The specific embodiment
For further understanding summary of the invention, characteristics and the effect of the utility model, the following examples of giving an example now, and conjunction with figs. specifies as follows:
See also Fig. 1, a kind of steel bone core structure that is used for the casting of support roller lightening hole comprises top core 1 and bottom core 2; Top, bottom core all have the whole circle close-over (1-1 of the groove that is used on the moulding support roller; 2-1), be evenly distributed with 3 core print groove 2-2 on the whole circle of the bottom core close-over, the interior fixedly round steel bar 3 of said core print groove; The excircle of round steel bar 3 is covered with chromite layer of sand 4, is equipped with louvre 5 on the top, two ends of said corresponding circle rod iron 3, the bottom core.
The utility model selects for use round steel bar to apply the fuse of chromite sand as the lightening hole moulding; Its effect is equivalent to use indirectly external chill, has good chill effect, and the two ends of round steel bar are respectively equipped with louvre simultaneously; Heat is guided to atmosphere; Fast and the longer duration of heat transmission can be good at solving the problem that lightening hole is burnt to death or hardening cracked like this, in addition the utility model also have simple in structure, reduce labour intensity, advantage such as comparatively convenient when taking off core.
Claims (1)
1. one kind is used for the steel bone core structure that the support roller lightening hole is cast; Comprise top core and bottom core; Top, bottom core all have the whole circle close-over of the groove that is used on the moulding support roller, it is characterized in that: be evenly distributed with 3 core print grooves on the whole circle of the bottom core close-over, the interior fixedly round steel bar of said core print groove; The excircle of round steel bar is covered with the chromite layer of sand, is equipped with louvre on the top, two ends of said corresponding circle rod iron, the bottom core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202526831U CN202192227U (en) | 2011-07-18 | 2011-07-18 | Steel rib core structure for casting lightening holes of riding wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202526831U CN202192227U (en) | 2011-07-18 | 2011-07-18 | Steel rib core structure for casting lightening holes of riding wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202192227U true CN202192227U (en) | 2012-04-18 |
Family
ID=45947158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202526831U Expired - Fee Related CN202192227U (en) | 2011-07-18 | 2011-07-18 | Steel rib core structure for casting lightening holes of riding wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202192227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108405810A (en) * | 2018-05-29 | 2018-08-17 | 新乡市长城铸钢有限公司 | A kind of production method of riding wheel lightening holes core |
-
2011
- 2011-07-18 CN CN2011202526831U patent/CN202192227U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108405810A (en) * | 2018-05-29 | 2018-08-17 | 新乡市长城铸钢有限公司 | A kind of production method of riding wheel lightening holes core |
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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: 20120418 Termination date: 20170718 |