CN114289695A - Casting process of metro bogie axle box body - Google Patents
Casting process of metro bogie axle box body Download PDFInfo
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- CN114289695A CN114289695A CN202111567136.7A CN202111567136A CN114289695A CN 114289695 A CN114289695 A CN 114289695A CN 202111567136 A CN202111567136 A CN 202111567136A CN 114289695 A CN114289695 A CN 114289695A
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- box body
- riser
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Abstract
The invention discloses a casting process of a metro bogie axle box body, which comprises a casting mold, wherein the casting mold is divided into an upper part and a lower part by a parting line, the upper part comprises a dead head and a sprue, the lower part is an axle box casting mold, and the casting process is described in detail.
Description
Technical Field
The invention relates to a casting process of a shaft box body of a metro bogie.
Background
The axle box body is a key accessory of the subway bogie and is also an important accessory influencing driving safety, the requirements on quality and dimensional accuracy are high, the radiographic inspection grade is 2 grade, the compactness is 2 grade, meanwhile, the axle box body is also a general accessory on the subway bogie, the requirement amount is large, therefore, the requirement for ensuring and improving the product quality of the axle box body is the requirement on driving safety and the requirement on enterprise benefit, and the key factor influencing the product quality is the rationality and superiority of the product process.
Disclosure of Invention
The invention aims to design a casting mold which is simple in structure, efficient in production and excellent in manufacturability, and effectively improves the production efficiency and economic benefits while meeting the quality requirement of a shaft box product.
The technical scheme adopted by the invention is as follows: a casting process of a metro bogie axle box body comprises a casting mold, wherein the casting mold is divided into an upper part and a lower part by a parting line, the upper part comprises a dead head and a sprue, the lower part is an axle box casting mold, and the casting method by utilizing the mold comprises the following steps:
molten steel is injected from the sprue, and is introduced into the casting mold from the lower part of the semicircular connecting cover of the shaft box body through the forming cross runner and the ingate, and the heat-insulating riser at the upper part of the ingate takes the ingate as a feeding channel to feed the lower part of the connecting cover; the upper heat-insulating riser fully feeds the shaft box body; the upper part of the box body is fed by a heat-insulating riser at the upper part of the box body through horizontal feeding at the lower part of the riser; a heat-insulating riser arranged in a cylinder of the box body feeds the lower part of the box body through horizontal patching, and gas in the built-in riser is led out through a built-in gas outlet channel; the heat-insulating riser at the upper part of the connecting plate carries out feeding on the connecting plate through vertical patching; the diameter of a thermal-insulation circular ring at the lower part of the box body is reduced through the end surface chilling block and the side surface chilling block at the lower part of the box body, so that the feeding effect of a built-in thermal-insulation riser of a cylinder of the box body is improved; the shock absorber mounting seats are prevented from contracting and deforming through the lacing wires connected with the two shock absorber mounting seats.
The invention has the beneficial effects that: through implementation, the casting process disclosed by the invention is reasonable in design, the compactness and the internal quality of the shaft box body casting are ensured, the size of the casting is well controlled, and the product quality requirement is met.
Drawings
FIG. 1 is a schematic view of a shaft housing product;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic view of the casting mold of the present invention;
fig. 4 is a top view of bitmap 3.
Shown in the figure: the device comprises a box body 1, a shock absorber mounting seat 2, a spring positioning column end 3, a semicircular connecting cover 4, a first connecting plate 6, a second connecting plate 7, a straight pouring runner pipe 01, a 02-forming cross runner, a 03 ingate, a 04 parting line, a 05 heat-insulating riser, a 06 horizontal patch, a 07 built-in riser, a 08 horizontal patch, a 09 vertical patch, a 10 end face chill, a 11 side face chill and a 12 lacing wire.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-2, the axle box body comprises a box body 1, a semicircular connecting cover 4, a shock absorber mounting seat 2, a connecting plate I6 and a connecting plate II 7, wherein the box body 1 is of an inner-circle and outer-square structure, four corners are thick, and the top is provided with a spring positioning column 3; the connecting plate has uniform wall thickness; the shock absorber mounting seat 1 is of a square column structure; when the mold is designed, the round angle of the plane of the box body 1 without the spring positioning column end 3 is used for parting the mold, and the spring positioning column 3 end is positioned at the lower mold, so that most of the mold is positioned at the lower mold; adopting a core assembly mold design, wherein the outer mold is a solid body, and a casting cavity structure is formed through a sand core; a riser and a transverse patch are arranged on the top surface of the upper die; a dead head and a patch are arranged in a cylinder of the box body 1, a transverse gas outlet rod is designed at the top of the dead head, and end chills are designed on two end faces of the cylinder; a riser is arranged at the top of the second connecting plate 7, and a riser patch is arranged on the side surface of the second connecting plate; a riser is arranged at the top of the shock absorber mounting seat 2; a riser is arranged at the top of the semicircular connecting cover 4, and an ingate 03 with a riser is arranged at the bottom of the semicircular connecting cover; and a cold iron is arranged at the joint of the second connecting plate 7 and the box body.
The design of parting surface makes the axle box most be located the type down, has solved the wrong type problem of axle box body.
The gating system is of a bottom pouring open type, an ingate is led in from the lower part of the semicircular connecting cover 4, drainage is stable, slag collection and exhaust are facilitated, pouring quality is good, a riser is arranged on the ingate 03, feeding is carried out on the semicircular connecting cover 4 through the ingate 03, and the compactness of the semicircular connecting cover 4 which is overheated in pouring is guaranteed.
The spring positioning column 3 is positioned at the lower part and is beneficial to the arrangement of a riser of the box body.
The top of the box body 1 is provided with a riser with a horizontal patch, so that the whole hot spot at the top of the box body is fed by one riser, the number of the risers is reduced, and the process yield is improved.
The inside of a cylinder of the box body 1 is provided with a riser and a patch, so that a lower thermal section of the riser feeding box body 1 and a spring positioning column 3 are realized, the top of the riser is provided with a transverse gas outlet rod for introducing gas, the riser is prevented from being blocked, the casting process and the die manufacturing are simplified, and the process layout is more reasonable and compact.
And a riser is arranged at the top of the second connecting plate 7 between the connecting cover and the box body, and the riser is vertically attached on the side surface of the connecting plate, so that the second connecting plate 7 is fed, and the compactness and the strength of the second connecting plate 7 are ensured.
End chills are designed on two end faces of the barrel to improve the feeding distance and the feeding capacity of the riser, and the chills are designed at the joint of the second connecting plate 7 and the box body 1 to eliminate local thermal junctions and ensure the feeding effect of the riser.
The lacing wire 12 is designed between the shock absorber installation seats 2, so that the shock absorber installation seats 2 are prevented from deforming, and the size of the shock absorber installation seats 2 is ensured.
As shown in fig. 3 to 4, the present embodiment includes a casting mold divided into upper and lower portions by a parting line 04, the upper portion including a riser 05 and a sprue 01, and the lower portion being an axle box mold, and the casting method using the mold is as follows: molten steel is injected from a sprue 01, and is introduced into a casting mold from the lower part of the semicircular connecting cover of the shaft box body through a forming cross runner 02 and an inner runner 03, and a heat-insulating riser 05 at the upper part of the inner runner 03 takes the inner runner 03 as a feeding channel to feed the lower part of the connecting cover; the upper heat-insulating riser 05 performs comprehensive feeding on the shaft box body; the upper part of the box body is fed by a heat-insulating riser 05 at the upper part of the box body through a horizontal patch 06 at the lower part of the riser; a thermal insulation riser 07 arranged in a cylinder of the box body feeds the lower part of the box body through a horizontal patching 08, and gas in the built-in riser 07 is led out through a built-in gas outlet channel 13; the heat-insulating riser 05 at the upper part of the connecting plate carries out feeding on the connecting plate through a vertical patching 09; the diameter of a thermal-insulation circular ring at the lower part of the box body is reduced through the end surface chilling block 10 and the side surface chilling block 11 at the lower part of the box body, so that the feeding effect of a built-in thermal-insulation riser of a cylinder of the box body is improved; the shock absorber mounting seats are prevented from contracting and deforming by the tie bars 12 connected with the two shock absorber mounting seats.
The embodiments of the present invention have been described above with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (1)
1. A casting process of a metro bogie axle box body is characterized in that: the casting method comprises the following steps of dividing a casting mold into an upper part and a lower part by a parting line (04), wherein the upper part comprises a riser (5) and a sprue (01), and the lower part is an axle box casting mold:
molten steel is injected from a sprue (01), and is introduced into a casting mold from the lower part of a semicircular connecting cover of the shaft box body through a forming cross runner (02) and an ingate (03), and a heat-insulating riser (05) at the upper part of the ingate (03) takes the ingate (03) as a feeding channel to feed the lower part of the connecting cover; an upper heat-insulating riser (05) performs comprehensive feeding on the shaft box body; the upper part of the box body is fed by a heat-insulating riser (05) at the upper part of the box body through a horizontal patch (06) at the lower part of the riser; a thermal insulation riser (07) arranged in a cylinder of the box body feeds the lower part of the box body through a horizontal patch (08), and gas in the built-in riser (07) is led out through a built-in gas outlet channel (13); a heat-insulating riser (05) at the upper part of the connecting plate carries out feeding on the connecting plate through a vertical patching (09); the diameter of a thermal-insulation circle at the lower part of the box body is reduced through the cold iron (10) at the end surface of the lower part of the box body and the cold iron (11) at the side surface, so that the feeding effect of a built-in thermal-insulation riser of a cylinder of the box body is improved; the shock absorber mounting seats are prevented from shrinking and deforming through the tie bars (12) connected with the two shock absorber mounting seats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111567136.7A CN114289695A (en) | 2021-12-21 | 2021-12-21 | Casting process of metro bogie axle box body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111567136.7A CN114289695A (en) | 2021-12-21 | 2021-12-21 | Casting process of metro bogie axle box body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114289695A true CN114289695A (en) | 2022-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111567136.7A Pending CN114289695A (en) | 2021-12-21 | 2021-12-21 | Casting process of metro bogie axle box body |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101462149A (en) * | 2009-01-15 | 2009-06-24 | 洛阳市兴荣工业有限公司 | Foundry technique method of lower support board of ball type support |
| CN102489673A (en) * | 2011-12-01 | 2012-06-13 | 南车戚墅堰机车车辆工艺研究所有限公司 | Method for casting locomotive positioning arm castings |
| DE102014102724A1 (en) * | 2013-12-03 | 2015-06-03 | Nemak Linz Gmbh | Process for the casting production of castings from a molten metal |
| CN207592732U (en) * | 2017-12-11 | 2018-07-10 | 吉林省禹程精密机械制造有限公司 | A kind of casting device of high ferro bogie axle babinet |
| CN112658210A (en) * | 2020-12-08 | 2021-04-16 | 江苏朗锐茂达铸造有限公司 | Sectional casting method for subway bogie special-shaped steel casting |
| CN112872300A (en) * | 2019-11-30 | 2021-06-01 | 共享铸钢有限公司 | Casting method of oil and gas equipment casting |
-
2021
- 2021-12-21 CN CN202111567136.7A patent/CN114289695A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101462149A (en) * | 2009-01-15 | 2009-06-24 | 洛阳市兴荣工业有限公司 | Foundry technique method of lower support board of ball type support |
| CN102489673A (en) * | 2011-12-01 | 2012-06-13 | 南车戚墅堰机车车辆工艺研究所有限公司 | Method for casting locomotive positioning arm castings |
| DE102014102724A1 (en) * | 2013-12-03 | 2015-06-03 | Nemak Linz Gmbh | Process for the casting production of castings from a molten metal |
| CN207592732U (en) * | 2017-12-11 | 2018-07-10 | 吉林省禹程精密机械制造有限公司 | A kind of casting device of high ferro bogie axle babinet |
| CN112872300A (en) * | 2019-11-30 | 2021-06-01 | 共享铸钢有限公司 | Casting method of oil and gas equipment casting |
| CN112658210A (en) * | 2020-12-08 | 2021-04-16 | 江苏朗锐茂达铸造有限公司 | Sectional casting method for subway bogie special-shaped steel casting |
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