CN106925757B - Aluminum alloy gear cabinet casting casting system and casting method - Google Patents
Aluminum alloy gear cabinet casting casting system and casting method Download PDFInfo
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- CN106925757B CN106925757B CN201710284137.8A CN201710284137A CN106925757B CN 106925757 B CN106925757 B CN 106925757B CN 201710284137 A CN201710284137 A CN 201710284137A CN 106925757 B CN106925757 B CN 106925757B
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- ingate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
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Abstract
A kind of aluminum alloy gear cabinet casting casting system, including gear-box figure chamber and running gate system, the running gate system is arranged on the symmetry axis at the planar cavity bottom, running gate system includes filter, sprue, ingate, one end of sprue is connected to the filter, the other end of sprue is connect with ingate, ingate is connect with the oblong type chamber of gear-box figure chamber, ingate is the strip running channel being arranged along the length direction of oblong type chamber, the area of section of ingate is greater than the area of section of sprue, in the present invention, not set cross gate, sprue is also shorter, ingate is set to one, the center of entire type chamber is arranged in ingate, it is also the lowest position of type chamber, also in the symmetrical shaft position of type chamber, in this way, when being poured using low-voltage temperature-keeping furnace, when aluminium alloy enters type chamber, liquid level is along class disk The evenly dispersed rising of shape type chamber, after type chamber is full of, aluminium alloy cooling velocity is uniform, and feeding is uniform.
Description
Technical field
The present invention relates to aluminium alloy castings casting technology field more particularly to a kind of aluminum alloy gear cabinet casting casting systems
System and casting method.
Background technique
Gear housing be support and fix shaft components, guarantee driving parts normally engage, the base of good lubrication and sealing
Plinth part, strength and stiffness with higher.Common monoblock type casting box, compact dimensions are light-weight, are easily guaranteed that each part
Good assembly.Since its structure and stress are more complicated, exist on part compared with polydispersion thermal center.Traditional gravity casting system
To make these thermal centers not generate shrinkage porosite and shrinkage cavity defect, using even distribution type running channel to thermal center feeding, as shown in Figure 1 and Figure 2, in figure
Gear-box figure chamber 10 is casting type chamber to be cast, and running gate system 30 includes sprue 31, cross gate 32, ingate 33, is gone back
There are several riser 40.
It is found that the running gate system is since riser 40,30 proportion of running gate system are larger in figure, final technique is caused to be produced
Rate is low, and usual product yield only accounts for 50%, and riser, running gate system occupy 50%, and this 50% can only be as tailing recycling benefit
With causing unit output value decline serious.And in gravity casting method, the tooling quantity needed is more, cumbersome, hand teeming water
Put down the problems such as unstable.
Summary of the invention
It is necessary to propose that a kind of anti-gravity formula is poured, running gate system is simple, casting type chamber fills the good aluminum alloy gear of type
Box casting casting system.
It there is a need to propose a kind of aluminum alloy gear cabinet casting method.
A kind of aluminum alloy gear cabinet casting casting system, including gear-box figure chamber and running gate system, the gear-box
Figure chamber is class disc type chamber, and oblong type chamber, the length is arranged in the bottom of the class disc type chamber of gear-box figure chamber
Circular mold cavity has planar cavity bottom, and the running gate system is arranged on the symmetry axis at the planar cavity bottom, and running gate system included
Filter, sprue, ingate, filter are connect with the stalk of the low-voltage temperature-keeping furnace for holding aluminium alloy, and the one of sprue
End is connected to the filter, and the other end of sprue is connect with ingate, and the oblong type chamber of ingate and gear-box figure chamber connects
It connecing, the sprue is vertically arranged in the lower section of ingate, and the central axis of sprue is located on the symmetry axis at the planar cavity bottom,
Ingate is the strip running channel being arranged along the length direction of oblong type chamber, and the area of section of ingate is greater than sprue
Area of section.
Preferably, the sprue is cylindrical running channel, and ingate is prism running channel, and the diameter of sprue is greater than interior pour
Slope is arranged in the one end for the sprue connecting with ingate, so that the section in the section of sprue and ingate in the width in road
Matching.
Preferably, barrier type chamber, the barrier type chamber are also set up in the inside of the class disc type chamber of gear-box figure chamber
The inside and bottom of class disc type chamber are oppositely arranged on oblong type chamber, the running gate system is close to gear-box figure chamber
One side of oblong type chamber is arranged, so that ingate is faced with the barrier type chamber.
A kind of aluminum alloy gear cabinet casting casting method, includes the following steps:
Gear-box figure chamber is formed using gear housing casting die moulding;
It is laid with running gate system, ingate is first laid on to the bottom of gear-box figure chamber, then sprue is laid on vertically
The bottom of ingate, then filter is seated in the end of sprue;
Form gear housing casting mold;
Aluminium alloy casting, forms gear housing casting.
In the present invention, according to gear housing casting structure, casting system is devised using anti-gravity formula pouring procedure, this is poured
Not set cross gate in injection system, sprue is also shorter, and ingate is set to one, and the area of section of ingate is greater than directly
The center of entire type chamber and the lowest position of type chamber, also pair in type chamber is arranged in running channel area of section, ingate
Claim shaft position, in this way, when aluminium alloy enters type chamber, liquid level is uniform along class disc type chamber when being poured using low-voltage temperature-keeping furnace
Dispersion rises, and after type chamber is full of, aluminium alloy cooling velocity is uniform, and feeding is uniform.
Using the gear housing casting of casting system of the invention and casting method cast molding, product yield reaches
80% or more, greatly reduce cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of gear housing casting casting system in the prior art.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the structural schematic diagram of heretofore described gear housing casting casting system.
Fig. 4 is the structural schematic diagram of another angle of heretofore described gear housing casting casting system.
Fig. 5 is the main view of heretofore described gear housing casting casting system.
Fig. 6 is the left view of heretofore described gear housing casting casting system.
Fig. 7 is the bottom view of heretofore described gear housing casting casting system.
Fig. 8 is the schematic cross-section in Fig. 7 along A-A.
In figure: gear-box figure chamber 10, class disc type chamber 11, inside sand mold side wall 111, oblong type chamber 12, plane
Bottom of chamber 121, barrier type chamber 13, running gate system 20, filter 21, sprue 22, slope 221, ingate 23, running gate system 30,
Sprue 31, cross gate 32, ingate 33, riser 40.
Specific embodiment
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, common for this field
For technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Referring to Fig. 3 to Fig. 7, the embodiment of the invention provides a kind of aluminum alloy gear cabinet casting casting systems, including tooth
Box body shape chamber 10 and running gate system 20 are taken turns, the gear-box figure chamber 10 is class disc type chamber 11, in gear-box figure chamber 10
Class disc type chamber 11 bottom be arranged oblong type chamber 12, the oblong type chamber 12 have planar cavity bottom 121, it is described to pour
Injection system 20 is arranged on the symmetry axis at the planar cavity bottom 121, and running gate system 20 includes filter 21, sprue 22, interior pours
Road 23, filter 21 are connect with the stalk of the low-voltage temperature-keeping furnace for holding aluminium alloy, one end of sprue 22 and filter
21 connections, the other end of sprue 22 are connect with ingate 23, the oblong type chamber 12 of ingate 23 and gear-box figure chamber 10
Connection, the sprue 22 are vertically arranged in the lower section of ingate 23, and the central axis of sprue 22 is located at the planar cavity bottom 121
Symmetry axis on, ingate 23 be along oblong type chamber 12 length direction be arranged strip running channel, ingate 23 cut
Face area is greater than the area of section of sprue 22.
The setting purpose of strip ingate 23 is, not only increases the face that ingate 23 is connected to oblong type chamber 12
Product reduces the resistance and turbulent flow slag of aluminium alloy, and in strip not by resistance when aluminium alloy enters type chamber from ingate 23
The area of section of running channel 23 is greater than the area of section of sprue 22, so that aluminium alloy is without hindrance when entering ingate 23 from sprue 22
Power, the aluminium alloy in the unit time by sprue 22 will not be full of ingates 23, with aluminium alloy after entering ingate 23
Ingate 23 is continued into, ingate 23 is filled rear aluminium alloy and just enters type chamber, the first quilt in ingate 23 of such aluminium alloy
Flow slowly current stabilization, avoid slag, in addition, the biggish area of section of ingate 23 also ensure have always in ingate 23 it is more
Liquid alloy liquid, and then promote feeding.
Further, the sprue 22 is cylindrical running channel, and ingate 23 is prism running channel, and the diameter of sprue 22 is big
In the width of ingate 23, slope 221 is set in the one end for the sprue 22 connecting with ingate 23, so that sprue 22 is cut
The cross-sections match in face and ingate 23.The setting on slope 221, avoid aluminium alloy from sprue 22 to when 23 transition of ingate because
Section it is unexpected diminution and lead to liquid constricted flow turbulent flow, cause washing away for the side wall of the lesser ingate 23 of liquid pair cross-section
Slag.
Further, referring to Fig. 8, barrier type chamber is also set up in the inside of the class disc type chamber 11 of gear-box figure chamber 10
13, the barrier type chamber 13 and oblong type chamber 12 are oppositely arranged on the inside and bottom of class disc type chamber 11, that is, barrier type
Chamber 13 and oblong type chamber 12 are oppositely arranged on the inner side and outer side of class disc type chamber 11, and the running gate system 20 is close to gear
One side of the oblong type chamber 12 of box body shape chamber 10 is arranged, so that ingate 23 is faced with the barrier type chamber 13.
Due to the gear-box figure chamber 10 class disc type chamber 11 be hollow type chamber, the intracavitary portion of this hollow type also
The barrier type chamber 13 of one partition for forming protrusion, 13 thinner thickness of barrier type chamber, in casting, aluminium alloy is from ingate 23
One dividing into three enters class disc type chamber 11 and barrier type chamber 13, if class disc type chamber 11 is arranged in ingate 23
Center, allows for 111 face of inside sand mold side wall of ingate 23 Yu gear-box figure chamber 10, and such aluminium alloy not only can
It is directly flushed on sand mold, causes slag, moreover, aluminium alloy is divided into two into class disc type chamber 11, then exists when casting
Into barrier type chamber 13, it is obstructed decaying into the power of barrier type chamber 13 in this way, the feeding after being poured, to barrier type chamber 13
Also it can be obstructed.
The present invention also proposes a kind of aluminum alloy gear cabinet casting casting method, includes the following steps:
Gear-box figure chamber 10 is formed using gear housing casting die moulding;
It is laid with running gate system 20, ingate 23 is first laid on to the bottom of gear-box figure chamber 10, then sprue 22 is erected
It is directly laid on the bottom of ingate 23, then filter 21 is seated in the end of sprue 22;
Form gear housing casting mold;
Aluminium alloy casting, forms gear housing casting.
The steps in the embodiment of the present invention can be sequentially adjusted, merged and deleted according to actual needs.
Module or unit in the device of that embodiment of the invention can be combined, divided and deleted according to actual needs.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and wants according to right of the present invention
Made equivalent variations is sought, is still belonged to the scope covered by the invention.
Claims (3)
1. a kind of aluminum alloy gear cabinet casting casting system, it is characterised in that: including gear-box figure chamber and running gate system, institute
Stating gear-box figure chamber is class disc type chamber, and oblong type is arranged in the bottom of the class disc type chamber of gear-box figure chamber
Chamber, the oblong type chamber have planar cavity bottom, and the running gate system is arranged on the symmetry axis at the planar cavity bottom, casting system
System includes filter, sprue, ingate, and filter is connect with the stalk of the low-voltage temperature-keeping furnace for holding aluminium alloy, directly
One end of running channel is connected to the filter, and the other end of sprue is connect with ingate, and ingate is oval with gear-box figure chamber
The connection of shape type chamber, the sprue are vertically arranged in the lower section of ingate, and the central axis of sprue is located at the planar cavity bottom
On symmetry axis, ingate is the strip running channel being arranged along the length direction of oblong type chamber, and the area of section of ingate is big
In the area of section of sprue.
2. aluminum alloy gear cabinet casting casting system as described in claim 1, it is characterised in that: the sprue is cylinder
Shape running channel, ingate are prism running channel, and the diameter of sprue is greater than the width of ingate, in the sprue connecting with ingate
One end be arranged slope so that the cross-sections match in the section of sprue and ingate.
3. aluminum alloy gear cabinet casting casting system as described in claim 1, it is characterised in that: in gear-box figure chamber
The inside of class disc type chamber also sets up barrier type chamber, and the barrier type chamber and oblong type chamber are oppositely arranged on class disc type
The inside and bottom of chamber, the running gate system is arranged close to a side of the oblong type chamber of gear-box figure chamber, so that interior
Running channel is faced with the barrier type chamber.
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CN201710284137.8A CN106925757B (en) | 2017-04-26 | 2017-04-26 | Aluminum alloy gear cabinet casting casting system and casting method |
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CN201710284137.8A CN106925757B (en) | 2017-04-26 | 2017-04-26 | Aluminum alloy gear cabinet casting casting system and casting method |
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CN106925757B true CN106925757B (en) | 2019-06-28 |
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CN112605340B (en) * | 2020-12-16 | 2022-10-18 | 中车戚墅堰机车车辆工艺研究所有限公司 | Nodular cast iron integral low-floor light rail gear box and casting method thereof |
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CN202877488U (en) * | 2012-11-27 | 2013-04-17 | 宁波亿泰来模具有限公司 | Casting device of special gear box casting |
CN104275468A (en) * | 2013-07-12 | 2015-01-14 | 无锡成博科技发展有限公司 | Low-pressure casting process of train aluminum alloy gear case |
CN105081281A (en) * | 2015-08-25 | 2015-11-25 | 来安县科来兴实业有限责任公司 | Metal mold low-pressure casting process for cast-aluminum gearbox body of high-speed train |
CN105108105A (en) * | 2015-08-25 | 2015-12-02 | 来安县科来兴实业有限责任公司 | Metal mold low-pressure casting die for box body on cast aluminum gearbox of high-speed train |
CN105382206A (en) * | 2015-12-11 | 2016-03-09 | 南车戚墅堰机车车辆工艺研究所有限公司 | Casting mold and forming method for box body of gearbox |
CN206689403U (en) * | 2017-04-26 | 2017-12-01 | 宁夏维尔铸造有限责任公司 | Aluminum alloy gear casing casting casting system |
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2017
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Publication number | Priority date | Publication date | Assignee | Title |
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JPH09271890A (en) * | 1996-04-02 | 1997-10-21 | Hitachi Metals Ltd | Molten metal pouring hole |
JP2007216294A (en) * | 2006-01-18 | 2007-08-30 | Matsumura Seikei:Kk | Method for manufacturing casting apparatus and mold-surrounding member, and mold-surrounding member |
CN101508015A (en) * | 2009-02-23 | 2009-08-19 | 宁波合力模具科技股份有限公司 | Casting technique of heavy duty trucks gear box and die |
CN202877488U (en) * | 2012-11-27 | 2013-04-17 | 宁波亿泰来模具有限公司 | Casting device of special gear box casting |
CN104275468A (en) * | 2013-07-12 | 2015-01-14 | 无锡成博科技发展有限公司 | Low-pressure casting process of train aluminum alloy gear case |
CN105081281A (en) * | 2015-08-25 | 2015-11-25 | 来安县科来兴实业有限责任公司 | Metal mold low-pressure casting process for cast-aluminum gearbox body of high-speed train |
CN105108105A (en) * | 2015-08-25 | 2015-12-02 | 来安县科来兴实业有限责任公司 | Metal mold low-pressure casting die for box body on cast aluminum gearbox of high-speed train |
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