CN202438660U - Bolster sand core of oscillating-type steering rack - Google Patents
Bolster sand core of oscillating-type steering rack Download PDFInfo
- Publication number
- CN202438660U CN202438660U CN201220073161XU CN201220073161U CN202438660U CN 202438660 U CN202438660 U CN 202438660U CN 201220073161X U CN201220073161X U CN 201220073161XU CN 201220073161 U CN201220073161 U CN 201220073161U CN 202438660 U CN202438660 U CN 202438660U
- Authority
- CN
- China
- Prior art keywords
- core
- bolster
- sand core
- inner cavity
- utility
- 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
Links
Images
Landscapes
- Casting Devices For Molds (AREA)
Abstract
The utility model relates to a bolster sand core of an oscillating-type steering rack, characterized by comprising a venter inner cavity, a lightening hole, a pull rod hole, a splay inner cavity and an end part below a heart disk. The venter inner cavity, the lightening hole, the pull rod hole, the splay inner cavity and the end part below the heart disk are of an integrated sand core. The bolster sand core provided by the utility model is smooth in surface, can be used for effectively avoiding casting overlap and joint flash caused by using a diversified combinational sand core, improving the internal quality of casting and reducing the working strength.
Description
Technical field
The utility model relates to railway freight-car with swing type bogie bolster production technical field.
Background technology
Bolster 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, bolster and bolster are main component part, also are main stressed parts, and railway freight-car is in service under different situations, and bolster 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 bolster 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 bolster, thereby guarantee railway freight-car high-speed overload reliability of operation, security.
Railway freight-car all adopts core as die casting production with bolster both at home and abroad.At present, railway freight-car bolster 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 bolster 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 bolster manufacturing enterprise always, therefore, are necessary existing bolster core is improved.
Summary of the invention
The utility model technical problem to be solved is the deficiency that has a kind of bolster foundry engieering now in order to overcome, and a kind of swing type bogie bolster core is provided, and effectively improves bolster product quality and combination property.
For solving the problems of the technologies described above; The present invention provides a kind of swing type bogie bolster core; It is characterized in that; Comprise fish belly inner-cavity structure, lightening core structure, tie rod hole structure, Eight characters face inner-cavity structure and end construction under the cartridge face, the integral sand core of the fish belly inner-cavity structure under the said cartridge face, lightening core structure, tie rod hole structure, Eight characters face inner-cavity structure and the integrated moulding of end construction.
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 bolster integral core of the utility model.
The specific embodiment
The utility model bolster integral core is as shown in Figure 1, and the fish belly facing sand core 6 under the cartridge face 5, lightening core core 3, tie rod hole core 4, end core 1, Eight characters facing sand core 2 are linked to be bolster integral core of formation.Avoid being connected each other of a plurality of split cores of prior art, caused product casting flaws such as fash, crackle, sand holes to occur.
In order further to support the bolster core of the described global formation of claims; The integral forming method of bolster integral core is below described; May further comprise the steps: at first, require to make the integral core core box that comprises fish belly inner-cavity structure, lightening core structure, tie rod hole structure, Eight characters face inner-cavity structure and end construction according to the bolster 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. swing type bogie bolster core; It is characterized in that; Comprise fish belly inner-cavity structure, lightening core structure, tie rod hole structure, Eight characters face inner-cavity structure and end construction under the cartridge face, the integral sand core of the fish belly inner-cavity structure under the said cartridge face, lightening core structure, tie rod hole structure, Eight characters face inner-cavity structure and the integrated moulding of end construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220073161XU CN202438660U (en) | 2012-03-01 | 2012-03-01 | Bolster sand core of oscillating-type steering rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220073161XU CN202438660U (en) | 2012-03-01 | 2012-03-01 | Bolster sand core of oscillating-type steering rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202438660U true CN202438660U (en) | 2012-09-19 |
Family
ID=46820115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220073161XU Expired - Lifetime CN202438660U (en) | 2012-03-01 | 2012-03-01 | Bolster sand core of oscillating-type steering rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202438660U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554135A (en) * | 2012-03-01 | 2012-07-11 | 南车长江车辆有限公司 | Swinging type steering frame swing bolster sand core and manufacturing method thereof |
-
2012
- 2012-03-01 CN CN201220073161XU patent/CN202438660U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554135A (en) * | 2012-03-01 | 2012-07-11 | 南车长江车辆有限公司 | Swinging type steering frame swing bolster sand core and manufacturing method thereof |
| WO2013127218A1 (en) * | 2012-03-01 | 2013-09-06 | 南车长江车辆有限公司 | Swinging bogie bolster sand core and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101380665A (en) | Wheel hub casting method and die thereof | |
| CN207358114U (en) | A kind of large thick-wall ingot mould casting moulding system | |
| CN102441647A (en) | Manufacturing method for fully-integrated core of side frame | |
| CN203578677U (en) | Sand mould casting die | |
| CN102554134A (en) | Rail wagon side frame sand core and manufacturing method thereof | |
| CN102198490B (en) | Method for casting vertical lathe ram and casting die | |
| CN102554135A (en) | Swinging type steering frame swing bolster sand core and manufacturing method thereof | |
| CN102873271A (en) | Core embedding casting method for middle trough casting | |
| CN202479448U (en) | Crossbar type bogie bolster sand core | |
| CN204747409U (en) | Molding of sand mould nodular cast iron spare is with abaculus formula dysmorphism chill mechanism | |
| CN104353789A (en) | Preparation method of sand casting sand core and prepared sand core | |
| CN202438660U (en) | Bolster sand core of oscillating-type steering rack | |
| CN104043783A (en) | Small-caliber high-class valve body casting core | |
| CN202479447U (en) | Side frame sand core for rail wagon | |
| CN104475686A (en) | Sand mold casting method | |
| CN102527946A (en) | Crossed rod type truck bolster sand core and manufacture method | |
| CN202291271U (en) | Combined type sand core for axle housing cast by V method | |
| CN207026446U (en) | Automobile absorber sleeve die casting | |
| CN202804097U (en) | Toe-end cast structure of block-cast high manganese steel frog | |
| CN101474669A (en) | Method for casting large-sized launching piece with round hole for shipping rudder system | |
| CN203917854U (en) | A kind of vertical centrifugal casting device for the preparation of Concentric Reducers | |
| CN204603208U (en) | A kind of combination sand mould structure being convenient to fix | |
| CN103464692B (en) | A kind of casting method of tubular cast | |
| CN203635861U (en) | Running wheel body sand mold with sand core | |
| CN103433428A (en) | Composite casting method |
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: 20120919 |