CN209189781U - A kind of pneumatic lubricating system of aluminium alloy casting mould - Google Patents
A kind of pneumatic lubricating system of aluminium alloy casting mould Download PDFInfo
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- CN209189781U CN209189781U CN201821647032.0U CN201821647032U CN209189781U CN 209189781 U CN209189781 U CN 209189781U CN 201821647032 U CN201821647032 U CN 201821647032U CN 209189781 U CN209189781 U CN 209189781U
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Abstract
The utility model relates to a kind of pneumatic lubricating systems of aluminium alloy casting mould, including cast reservoir, drum pump, syringe pump, syringe and crystallizer；Oil mass low sensors are provided in syringe pump fuel reserve tank, syringe has multiple injecting units, and multiple injecting units are connected in parallel with each other, and crystallizer includes crystallizer ontology, Re Ding, graphite oil ring, graphite compression ring and water ring；It is provided with water inlet on crystallizer ontology, forms a water outlet after water ring and the assembly of crystallizer ontology；Drum pump, syringe pump, syringe, crystallizer are set gradually and adjacent structure is connected by fuel feed pump；Cast reservoir is located at turn around the lower end of pump, and syringe includes for oil-in, syringe piston, pressure chamber, delivery valve, oil outlet, measuring room and meter indication；The system can accurately regulate and control injected in single graphite oil ring on each crystallizer casting lubrication oil content, it is ensured that graphite oil ring oil film uniformity while reduce casting lubricating oil usage amount.
Description
Technical field
The utility model relates to aluminium alloy casting mould field, especially a kind of pneumatic lube system of aluminium alloy casting mould
System.
Background technique
In wrought aluminium alloy manufacture field, the surface quality and internal soundness of casting rod are to its subsequent processed and applied (as squeezed
Pressure, rolling, drawing etc.) generate vital influence.To obtain superior in quality casting rod, in traditional heat top foundry engieering neck
Domain, mostly uses greatly porous graphite oil lubrication technology, and casting lubricating oil enters graphite annulus inner wall by the micropore permeation of graphite annulus and formed
One layer of oil film, to reduce the friction in casting process between casting rod outer wall and graphite annulus inner wall.However, being injected into graphite annulus
Oil about 80% eventually flows into cooling water, and the quenching intensity that casting oil will substantially reduce cooling water is mixed into cooling water, thus
Reduce the quality of casting rod.
Summary of the invention
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of low-voltage vacuum casting system aluminium alloy
The pneumatic lubricating system of casting mould, the system can accurately regulate and control the casting profit injected in single graphite oil ring on each crystallizer
Grease content, it is ensured that graphite oil ring oil film uniformity while reduce casting lubricating oil usage amount.
According to technical solution provided by the utility model:
A kind of pneumatic lubricating system of aluminium alloy casting mould, it is characterised in that:
Including cast reservoir, drum pump, syringe pump, syringe and crystallizer；
Oil mass low sensors are provided in the syringe pump fuel reserve tank, which drives drum pump,
The syringe has multiple injecting units, and multiple injecting units are connected in parallel with each other,
The crystallizer includes crystallizer ontology, Re Ding, graphite oil ring, graphite compression ring and water ring；The crystallizer ontology
On be provided with water inlet, form a water outlet after water ring and the assembly of crystallizer ontology；
The drum pump, syringe pump, syringe, crystallizer are set gradually and adjacent structure is connected by fuel feed pump；It is described
Cast reservoir is located at turn around the lower end of pump；
Improvement to above-mentioned technical proposal, syringe include for oil-in, syringe piston, pressure chamber, delivery valve, fuel-displaced
Mouth, measuring room and meter indication；
It is connected for oil-in main body with pressure chamber main body screw, syringe piston is connected by spring with pressure chamber；
Meter is connected with pressure chamber main body screw, and meter indication is connected by spring with meter；
Oil for oil-in through entering, and under spring collective effect, pushes syringe piston and back and forth slides in pressure chamber periodically
It is dynamic；When syringe piston advances, pressure chamber front end shoe cream room inner fluid is pushed to spray through oil outlet, while pressure chamber middle-end oil liquid is pushed away
Enter measuring room；When syringe piston retreats, measuring room inner fluid is pushed to pressure chamber front end shoe cream room under meter indication effect,
To spray standby oil next time.
Improvement to above-mentioned technical proposal, crystallizer include crystallizer ontology, Re Ding, graphite oil ring, graphite compression ring and water
Ring；The crystallizer ontology embeds graphite compression ring and graphite oil ring, graphite oil ring are located on graphite compression ring, is clamped and is filled by lower part
It sets and fixes to clamp crystallizer ontology and graphite compression ring, graphite oil ring；Heat top is fixed by gripping means grips.
Improvement to above-mentioned technical proposal, the single or multiple injecting units of syringe and corresponding single or multiple crystallizations
Graphite oil ring in device is connected.
Improvement to above-mentioned technical proposal, graphite compression ring are connected with the mixed gas that external argon gas and compressed air are formed.
Utility model has the advantages that
1, casting lubricating oil quantitatively controls, the effective usage amount of control casting lubricating oil while sufficient lubrication graphite annulus.
2, casting lubricating oil usage amount is greatly decreased；Due to the self-lubricating function of gas, molten aluminum and graphite annulus is effectively reduced
The probability of contact, so the lubricating oil that gas assisted casting needs is made compared to the hot direct casting of tradition and wants much less.
3, less lubricating oil is mixed into, and can effectively be ensured the cooling effect of cooling water, is more conducively obtained superior in quality casting
Stick.
Detailed description of the invention
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the structural schematic diagram that syringe runs the low pressure preparation stage.
Fig. 3 is the structural schematic diagram in syringe high-pressure injection stage.
Fig. 4 is the syringe high pressure measurement stage.
Fig. 5 is the structural schematic diagram in syringe low pressure oil return stage.
M- pressure schematic diagram when cycling service when Fig. 6 is the operation of the utility model syringe.
Fig. 7 is to be cast in embodiment one using Tthe utility model systemCasting rod grain size picture.
Fig. 8 is to be cast in embodiment two using Tthe utility model systemCasting rod inverse segregation layer picture.
Fig. 9 is to be cast in embodiment three using Tthe utility model systemCasting rod inverse segregation layer and crystalline substance
Granularity picture.
In figure: 1- cast reservoir, 2- drum pump, 3- syringe pump, 4- syringe, 4.1- injecting unit, 5- graphite oil ring, 6-
Fuel feed pump, 7- crystallizer, 8- oil mass low sensors, 9- for oil-in, 10- syringe piston, 11- pressure chamber, 12- delivery valve,
13- oil outlet, 14- measuring room, 15- meter indication, 16- heat top, 17- graphite compression ring, 18- water ring, 19- water inlet, 20- go out
The mouth of a river, 21- compressed air, 22- meter, 23- dummy bar head.
Specific embodiment
Below with reference to specific drawings and examples, the utility model is described in further detail.In figure → signal casting lubricating oil
Flow direction.
As shown in figs 1-9, a kind of pneumatic lubricating system of aluminium alloy casting mould, it is characterised in that:
Including cast reservoir 1, drum pump 2, syringe pump 3, syringe 4 and crystallizer；
Oil mass low sensors 8 are provided in the syringe pump fuel reserve tank, which drives drum pump 2,
The syringe 4 has multiple injecting units 4.1, and multiple injecting units are connected in parallel with each other,
The crystallizer includes crystallizer ontology 7, heat top 16, graphite oil ring 5, graphite compression ring 17 and water ring 18；The knot
It is provided with water inlet 19 on brilliant device ontology 7, forms a water outlet 20 after water ring and the assembly of crystallizer ontology；
The drum pump 2, syringe pump 3, syringe 4, crystallizer 7 are set gradually and adjacent structure is connected by fuel feed pump 6；
The cast reservoir 1 is located at turn around the lower end of pump 2, and compressed air 21 is accessed by pipeline in the side of the drum pump；
Improvement to above-mentioned technical proposal, syringe include for oil-in 9, syringe piston 10, pressure chamber 11, delivery valve
12, oil outlet 13, measuring room 14 and meter indication 15；
It is connected for 9 main body of oil-in with 11 main body screw of pressure chamber, syringe piston 10 is connected by spring and pressure chamber 11；
Meter 22 is connected with 11 main body screw of pressure chamber, and meter indication 15 is connected by spring and meter 22；
Under spring collective effect, it is past in 11 periodically of pressure chamber to push syringe piston 10 through entering for oil-in 9 for oil
Multiple sliding；When syringe piston 10 advances, 11 front end shoe cream room inner fluid of pressure chamber is pushed to spray through oil outlet 13, while pressure chamber 11
Middle-end oil liquid is pushed into measuring room 14；When syringe piston 10 retreats, 14 inner fluid of measuring room is under the effect of meter indication 15
It is pushed to 11 front end shoe cream room of pressure chamber, for the standby oil of injection next time.
Improvement to above-mentioned technical proposal, crystallizer include crystallizer ontology 7, heat top 16, graphite oil ring 5, graphite compression ring
17 and water ring 18；The crystallizer ontology 7 embeds graphite compression ring 17 and graphite oil ring 5, and graphite oil ring 5 is located at graphite compression ring 17
On, crystallizer ontology 7 and graphite compression ring 17, graphite oil ring 5 are fixed to clamp by lower part clamping device；Heat top 16 passes through clamping
Device is fixedly clamped；
The clamping device used in the utility model is clamping ring, by clamping ring by crystallizer ontology 7 and graphite compression ring
17, graphite oil ring 5 is fixed to clamp by clamping ring；Heat top 16 is clamped on clamping ring.
Improvement to above-mentioned technical proposal, the single or multiple injecting units 4.1 of syringe with it is corresponding single or multiple
Graphite oil ring 5 in crystallizer 7 is connected.
Improvement to above-mentioned technical proposal, the mixed gas phase that graphite compression ring 17 is formed with external argon gas and compressed air
Even.
In casting process, casting control room injection time cycle set according to as defined in casting technique is inputted to syringe pump to swash
It signals.Under the action of compressed air 21, syringe pump 3 is made in oil pressure to each syringe 4 in the pressure that syringe pump 3 gives
Under, syringe 4 can inject quantitative casting lubricating oil into corresponding graphite oil ring 5；It opens 10 position of syringe piston
When beginning mobile, lubricating oil gradually fills full measuring room 14, and meter indication 15 is pushed out；After load time, syringe pump 3 is certainly
Dynamic to stop, pressure lets out load.After pressure release, under the action of the underpressure, syringe piston 10 is retracted, the casting lubricating oil quilt in measuring room 14
It shifts onto pressure chamber 11, meter indication 15 retracts original position, and the lower period pressure injection of syringe 4 prepares in place.
4 cycling service of syringe, the operation of signal period different phase are described as follows:
1, the low pressure preparation stage: being full of lubricating oil at this time in pressure chamber 11, prepares injection；
2, the high-pressure injection stage: under the high pressure effect of compressed air 21, syringe piston 10 is pushed ahead, will be quantitative
Casting lubricating oil is injected into corresponding graphite oil ring 5；
3, the high pressure measurement stage: when 10 position of syringe piston starts mobile, casting lubricating oil gradually fills full measuring room
14, meter indication 15 is pushed out；
4, the low pressure oil return stage: under the action of the underpressure, syringe piston 10 is retracted, the casting lubricating oil quilt in measuring room 14
It shifts onto pressure chamber 11, meter indication 15 retracts original position, and the lower period pressure injection of syringe 4 prepares in place.
Single syringe oiling during single injection is primary, and the metered capacity range of single operation is 1.6~
4.8ml can be manually rotated meter 22 and be adjusted；According to the single syringe single operation of the adjustable section of casting rod diameter
Metered capacity, the effective usage amount of control casting lubricating oil while sufficient lubrication graphite annulus.
In casting process, graphite oil ring 5 is lubricated by pneumatic lubricating system described in the utility model, graphite compression ring
17 form air pressure lubrication by the mixed gas that argon gas and compressed air are formed；Meanwhile pneumatic lubricating oil under the effect of gravity from
The 5 inner wall fair current of graphite oil ring forms oil gas and is atomized separating layer to 17 inner wall of graphite compression ring under the action of mixture pressure,
It effectively reduces the friction between casting rod and crystallizer, obtains surface and the excellent casting rod of internal soundness.
Embodiment one
Cast specification3003 aluminium alloy cast rods, every furnace casting rod total amount about 25t, every furnace casting rod 40 crystallization
Device, every casting rod length about 7100mm.
Graphite oil ring in crystallizer is furnished with 1 syringe and its pneumatic lubricating system, process stipulation note
Emitter high-pressure injection metering phase used time 7S, low pressure prepare oil return stage used time 21S, and each cycle period is 7+21=28S.
Graphite oil ring diameterIts perimeter is about 637mm, the meter of the single syringe single operation of process stipulation
Amount range of capacity is 4.0ml.
When casting, the casting speed of the aluminium alloy cast rod is 120mm/min.
Thus it calculates, in the furnace casting process, every rice bran oil of single branch casting rod consumes are as follows:
Total oil consumption of single branch casting rod are as follows: 71.4 × 7.1=507ml
The oil consumption of every furnace casting rod are as follows: 507 × 40=20285ml=20.3l
Convert the oil consumption of casting rod per ton are as follows: 20.3 ÷ 25=0.81l/t
The excellent surface quality of gained casting rod, no inverse segregation layer, about 30-40 μm of average grain size.
Embodiment two
Cast specificationAHS aluminium alloy cast rod, every furnace casting rod total amount about 25t, every furnace casting rod 24 crystallization
Device, every casting rod length about 7400mm.
Graphite oil ring in Φ 254mm crystallizer is furnished with 1 syringe and its pneumatic lubricating system, process stipulation syringe
High-pressure injection metering phase used time 7S, low pressure prepare oil return stage used time 21S, and each cycle period is 7+21=28S.
Graphite oil ring diameterIts perimeter is about 798mm, the meter of the single syringe single operation of process stipulation
Amount range of capacity is 4.8ml.
When casting, the casting speed of the aluminium alloy cast rod is 105mm/min.
Thus it calculates, in the furnace casting process, every rice bran oil of single branch casting rod consumes are as follows:
Total oil consumption of single branch casting rod are as follows: 98.0 × 7.5=737.7ml
The oil consumption of every furnace casting rod are as follows: 737.7 × 24=17703ml=17.7l
Convert the oil consumption of casting rod per ton are as follows: 17.7 ÷ 25=0.71l/t
The excellent surface quality of gained casting rod, about 320 μm of inverse segregation thickness degree, the casting rod inverse segregation of same level Air-slip Casting
Thickness degree is greater than 1mm.
Embodiment three
Cast specification6110AH aluminium alloy cast rod, every furnace casting rod total amount about 25t, every furnace casting rod 6 knot
Brilliant device, every casting rod length about 7200mm.
Graphite oil ring in Φ 520mm crystallizer is furnished with 2 syringes and its pneumatic lubricating system, process stipulation syringe
High-pressure injection metering phase used time 7S, low pressure prepare oil return stage used time 14S, and each cycle period is 7+14=21S.
Graphite oil ring diameterIts perimeter is about 1633mm, the single syringe single operation of process stipulation
Metered capacity range is 4.8ml.
When casting, the casting speed of the aluminium alloy cast rod is 28mm/min.
Thus it calculates, in the furnace casting process, every rice bran oil of single branch casting rod consumes are as follows:
Total oil consumption of single branch casting rod are as follows: 979.6 × 7.2=7040ml
The oil consumption of every furnace casting rod are as follows: 7040 × 6=42240ml=42.24l
Convert the oil consumption of casting rod per ton are as follows: 42.24 ÷ 25=1.69l/t
The excellent surface quality of gained casting rod, about 330 μm of inverse segregation thickness degree, about 200-220 μm of average grain size.
It should be noted last that the above specific embodiment is only to illustrate the technical solution of the utility model rather than limits
System, although the utility model is described in detail referring to example, those skilled in the art should understand that, it can be right
The technical solution of the utility model is modified or replaced equivalently, without departing from the spirit and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (5)
1. a kind of pneumatic lubricating system of aluminium alloy casting mould, it is characterised in that:
Including cast reservoir (1), drum pump (2), syringe pump (3), syringe (4) and crystallizer；
Oil mass low sensors (8) are provided in the syringe pump fuel reserve tank, which drives drum pump (2),
The syringe (4) has multiple injecting units (4.1), and multiple injecting units are connected in parallel with each other,
The crystallizer includes crystallizer ontology (7), heat top (16), graphite oil ring (5), graphite compression ring (17) and water ring (18)；
It is provided with water inlet (19) on the crystallizer ontology (7), forms a water outlet (20) after water ring and the assembly of crystallizer ontology；
The drum pump (2), syringe pump (3), syringe (4), crystallizer ontology (7) is set gradually and adjacent structure passes through fuel feeding
(6) are managed to be connected；The cast reservoir (1) is located at turn around the lower end of pump (2).
2. a kind of pneumatic lubricating system of aluminium alloy casting mould according to claim 1, which is characterized in that the injection
Device include for oil-in (9), syringe piston (10), pressure chamber (11), delivery valve (12), oil outlet (13), measuring room (14) and
Meter indication (15)；
It is connected for oil-in (9) main body with pressure chamber (11) main body screw, syringe piston (10) is connected by spring and pressure chamber (11)
It connects；
Meter (22) is connected with pressure chamber (11) main body screw, and meter indication (15) is connected by spring and meter (22)；
Oil under spring collective effect, pushes syringe piston (10) in pressure chamber (11) periodically through entering for oil-in (9)
It reciprocatingly slides；When syringe piston (10) advances, pressure chamber (11) front end shoe cream room inner fluid is pushed to spray through oil outlet (13), together
When pressure chamber (11) middle-end oil liquid be pushed into measuring room (14)；When syringe piston (10) retreats, measuring room (14) inner fluid is being counted
It is pushed to pressure chamber (11) front end shoe cream room under amount indicator (15) effect, for the standby oil of injection next time.
3. a kind of pneumatic lubricating system of aluminium alloy casting mould according to claim 1, which is characterized in that the crystallization
Device ontology (7) embeds graphite compression ring (17) and graphite oil ring (5), and graphite oil ring (5) is located on graphite compression ring (17),
Crystallizer ontology (7) and graphite compression ring (17), graphite oil ring (5) are fixed to clamp by lower part clamping device；Heat top
(16) it is fixed by gripping means grips.
4. a kind of pneumatic lubricating system of aluminium alloy casting mould according to claim 1, which is characterized in that syringe
Single or multiple injecting units (4.1) are connected with the graphite oil ring (5) in corresponding single or multiple crystallizer ontologies (7).
5. a kind of pneumatic lubricating system of aluminium alloy casting mould according to claim 1, which is characterized in that the graphite
Compression ring (17) is connected with the mixed gas that external argon gas and compressed air are formed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014133A (en) * | 2018-10-11 | 2018-12-18 | 江苏亚太航空科技有限公司 | A kind of pneumatic lubricating system of aluminium alloy casting mould |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014133A (en) * | 2018-10-11 | 2018-12-18 | 江苏亚太航空科技有限公司 | A kind of pneumatic lubricating system of aluminium alloy casting mould |
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