CN101342585A - Method for casting and molding spiral rotor of compressor - Google Patents
Method for casting and molding spiral rotor of compressor Download PDFInfo
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- CN101342585A CN101342585A CNA2008100415659A CN200810041565A CN101342585A CN 101342585 A CN101342585 A CN 101342585A CN A2008100415659 A CNA2008100415659 A CN A2008100415659A CN 200810041565 A CN200810041565 A CN 200810041565A CN 101342585 A CN101342585 A CN 101342585A
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Abstract
The present invention relates to a method for casting and forming the helical rotor of a compressor, which is realized through the following steps: preparing a first mould, and a helical part mould is axially arranged inside the first mould; a sand mould is prepared by filling the sand pulp inside the first mould, and after the sand pulp is solidified and formed, the sand mould is formed by removing the mould, and the cast-die cavity of the helical part is arranged inside the sand mould; preparing a second mould: the second mould comprises an upper sand box and a lower sand box, and the sand mould is arranged inside the lower sand box, a molding cavity of a first pivot part and a second pivot part are arranged inside the upper sand box to be fixed and integrated with the upper and the lower sand boxes; pouring and forming: liquid cast-piece material is poured into the cast-die cavity and the molding cavity, and a rotor cast piece that is provided with a helical part and with two ends being respectively connected with the first pivot part and the second pivot part is formed by removing the mould after the cast-piece material is formed; the method of the present invention can save a great amount of materials and can save the manufacturing time.
Description
Technical field
The present invention relates to a kind of compressor drum casting and molding method, especially refer to a kind of method of making casting and molding spiral rotor of compressor that is applicable to.
Background technology
Rotor is the heart of compressor, and the more deep key factors such as the usefulness that has influence on integrating compressor, life-span and cost of the manufacturing process of rotor.Helical rotor present one of rotor type of extensive use the most especially wherein, its range of application is quite extensive, as cold coal compressor, air compressor, refrigerant condenser and dry type compressor etc.
Yet, mostly helical rotor manufacture method now is to carry out with the manufacture method of traditional machining, that is be that the original metal material is sawn into metal block material through cutting, metal block material is again through procedure of processings such as toolroom machine cutting, turning then, thus finish helical rotor spire, articulate the drive-connecting shaft of fixed rotor and each vitals that drives the helical rotors such as driving shaft of rotor.
As can be known aforementioned, traditional helical rotor manufacture method is not only consuming time takes a lot of work, and adds the waste of metal material, moreover because of needing long-time a large amount of cutting operation in its process, and cause the damage of toolroom machine or cutting tool easily, increase considerable manufacturing cost.
Hence one can see that, and how to reach and a kind ofly save material, simplify fabrication schedule and significantly reduce the manufacture method of the compressor drum of manufacturing cost, be a kind of the pressing on the industry really.
Summary of the invention
The technical issues that need to address of the present invention have provided a kind of method of casting and molding spiral rotor of compressor, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the present invention realizes by following steps:
Prepare one first mould, and in first mould, have a spire model that axially links to each other;
Prepare a sand mo(u)ld, it is a perfusion mortar in above-mentioned first mould, and after treating the mortar solidification forming, will promptly form sand mo(u)ld after the model demoulding again, is formed with the mold chamber of spire in it;
Prepare one second mould, second mould comprises a cope, an and drag box, and sand mo(u)ld is located at drag box, in the cope and have a die cavity of one first hinge portion and second hinge portion, and location and in conjunction with cope, and drag box;
Casting forming injects mold chamber, and die cavity with the casting material of liquid state, treats that the casting material back demoulding that is shaped is one and has the rotor casting that spire and its two end axially link to each other with first hinge portion, second hinge portion respectively.
Compared with prior art, the invention has the beneficial effects as follows: can save wide variety of materials, can simplify whole fabrication schedule, and when saving worker, more can significantly reduce manufacturing cost.
Description of drawings
Fig. 1 is a flow chart of the present invention.
Fig. 2 is the schematic diagram of first mould among the present invention.
Fig. 3 is the schematic diagram of sand mo(u)ld among the present invention.
Fig. 4 is the schematic diagram of second mould among the present invention.
Fig. 5 is the schematic diagram of rotor foundry goods of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail:
The present invention realizes by following steps:
A, preparation one first mould, and in first mould, have a spire model that axially links to each other;
B, preparation one sand mo(u)ld, it is a perfusion mortar in above-mentioned first mould, and after treating the mortar solidification forming, will promptly form sand mo(u)ld after the model demoulding again, is formed with the mold chamber of spire in it;
C, preparation one second mould, second mould comprises a cope, an and drag box, and sand mo(u)ld is located at drag box, in the cope and have a die cavity of one first hinge portion and second hinge portion, location and in conjunction with cope, and drag box;
D, casting forming inject mold chamber, and die cavity with the casting material of liquid state, treat that the casting material back demoulding that is shaped is one and has the rotor casting that spire and its two end axially link to each other with first hinge portion, second hinge portion respectively;
Moreover, can carry out another step e after step D of the present invention finishes and come the processing rotor foundry goods, it can utilize Digit Control Machine Tool or other processing mode, further carries out Precision Machining to reach predetermined size and rotor surface precision, in order to finish the finished product of a compressor drum.
In addition, first hinge portion of the present invention can be drive-connecting shaft, and it mainly is to be used for articulating fixed rotor itself; And second hinge portion can be driving shaft, and it is used for connecting power source with the drive compression machine rotor, and aforementioned power source can be electro-motor or other equivalent device;
Wherein, second mould of step C of the present invention can more include one and connect cope, and drag box and be communicated to the road of watering of mold chamber;
The casting material of step D liquid state can slowly be full of the mold chamber simultaneously, reach die cavity through watering route bottom and rotor mould top.In view of the above, the casting material of liquid state is flowed steadily, the splash phenomenon can drop to minimum; In addition, the casting material of liquid state of the present invention can see through and water route filling simultaneously up and down, and slag can rise to top rising head place after filling was finished.Last machining is removed this place.
Again, groove can be watered at porch Cheng Youyi in the road of watering of the present invention, its mainly make the liquid metal scum silica frost unlikely enter the mold chamber, and die cavity in, have pushing off the slag and reduce the function of impulsive force; In addition, sand mo(u)ld of the present invention can be a resin sand mo(u)ld.
Please consult Fig. 1 and Fig. 2 simultaneously, step of the present invention is as follows: prepare first mould 1 earlier, it is the steps A among Fig. 1, this first mould 1 is formed by having a spire 2 and a mould external mold 3 that axially links to each other, as shown in Figure 2, spire 2 is compressor drum groundwork district among the figure, and external mold 3 plays the moulding effect of the first mould sand mold in this example.
Then prepare a sand mo(u)ld 5, that is the step B shown in Fig. 1, be in having first mould 1 of a spire 2 and external mold 3, to irritate to put the high temperature mortar, and make the mortar solidification forming, form sand mo(u)ld 5 immediately, again demoulding model and external mold 3, just form the inner sand mo(u)ld 5 that spire 2 is arranged, as shown in Figure 3.The sand mo(u)ld 5 of present embodiment adopts resin sand mo(u)ld mode, and its advantage is as follows: the precision height of casting dimension can efficiently produce accurate foundry goods.Moreover, the dry mold by producing the intensity height in the short time, and institute's sand using amount is few, is fit to mass-produced casting, and it is also little to account for factory's area simultaneously.Afterwards, prepare second mould 6 again, i.e. step C shown in Fig. 1.See also Fig. 4, second mould 6 comprises a cope and a drag box, and the sand mo(u)ld 5 that will have aforementioned mold chamber 7 is located in the drag box 6.Wherein, cope is identical with following sandbox.Upper and lower sandbox is poured into a mould after by positioning combination.In addition, as shown in Figure 4, with the cast running channel 8 and divide four the tunnel to enter mold chamber 7.Wherein be equipped with rising head 9 on each mold chamber, play and melt the slag effect, guarantee casting quality.
After the 6 assembling preparations of second mould are finished, can carry out casting forming, that is the step D shown in Fig. 1.The casting forming step mainly is the casting material of liquid state to be injected water road 10, sees through and waters road 10 and utilize connecting pipe principle, and make the casting material of liquid state be full of mold chamber 7, and die cavity 11 one by one, and finally flow to rising head 9.Former air and the waste gas that riddles in the mould can be discharged by rising head 9, and impurity, slag or former invest mold chamber 7, and die cavity 11 in unclean things also can flow to rising head 9 places along with the casting material of liquid state because of density relationship.After treating the casting material cooled and solidified shaping of liquid state in the mould, just can carry out the demoulding.Promptly finish one after the demoulding and have spire 14, and the rotor castings 12 that axially link to each other with first hinge portion 15, second hinge portion 13 respectively in its two end.
See also Fig. 5, the rotor casting 7 after the demoulding still need carry out another procedure, that is the step e shown in Fig. 1.At first, can saw earlier remove 15 lower surfaces, first hinge portion water road 16, and the rising head 9 of 13 upper surfaces, second hinge portion partly because this two partly is the accessory substance that belongs in the casting process, its original parts that just do not belong to compressor drum.Then can utilize toolroom machine or alternate manner to carry out Precision Machining, reaching predetermined size and to improve the rotor surface precision, in order to finishing the finished product of a compressor drum, that is the step e shown in Fig. 1.
The foregoing description only is to give an example for convenience of description, and the interest field that the present invention advocated should be as the criterion so that claim is described certainly, but not only limits to the foregoing description.
Claims (6)
1. the method for a casting and molding spiral rotor of compressor, realize by following steps:
(A), preparation one first mould, and in first mould, have a spire model that axially links to each other;
(B), the preparation one sand mo(u)ld, it is a perfusion mortar in above-mentioned first mould, and after treating the mortar solidification forming, will promptly form sand mo(u)ld after the model demoulding again, is formed with the mold chamber of spire in it;
(C), preparation one second mould, second mould comprises a cope, an and drag box, and sand mo(u)ld is located in drag box, in the cope and have a die cavity of one first hinge portion and second hinge portion, location and in conjunction with cope, and drag box;
(D), casting forming, the casting material of liquid state is injected mold chamber, and die cavity, treat that the casting material back demoulding that is shaped is one and has the rotor casting that spire and its two end axially link to each other with first hinge portion, second hinge portion respectively.
2. the method for casting and molding spiral rotor of compressor according to claim 1, after step (D) is finished, can carry out another step (E) and come the processing rotor foundry goods, it can utilize Digit Control Machine Tool or other processing mode, further carry out Precision Machining to reach predetermined size and to improve the rotor surface precision, in order to finish the finished product of a compressor drum.
3. the method for casting and molding spiral rotor of compressor according to claim 1, wherein: first hinge portion is a drive-connecting shaft, it mainly is to be used for articulating fixed rotor itself; And second hinge portion is a driving shaft, and it is used for connecting power source with the drive compression machine rotor, and aforementioned power source can be electro-motor or other equivalent device.
4. the method for casting and molding spiral rotor of compressor according to claim 1, wherein: second mould of step (C) more includes one and connects cope, and drag box and be communicated to the road of watering of mold chamber;
The casting material of step (D) liquid state slowly is full of the mold chamber simultaneously, reaches die cavity through watering route bottom and rotor mould top; Casting material sees through and waters route filling simultaneously up and down, and slag can rise to top rising head place after filling was finished.
5, the method for casting and molding spiral rotor of compressor according to claim 4, wherein: water the road and water groove at porch Cheng Youyi.
6. the method for casting and molding spiral rotor of compressor according to claim 1, wherein: sand mo(u)ld wherein is a resin sand mo(u)ld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100415659A CN101342585A (en) | 2008-08-11 | 2008-08-11 | Method for casting and molding spiral rotor of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100415659A CN101342585A (en) | 2008-08-11 | 2008-08-11 | Method for casting and molding spiral rotor of compressor |
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| Publication Number | Publication Date |
|---|---|
| CN101342585A true CN101342585A (en) | 2009-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100415659A Pending CN101342585A (en) | 2008-08-11 | 2008-08-11 | Method for casting and molding spiral rotor of compressor |
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| CN (1) | CN101342585A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615473A (en) * | 2011-02-01 | 2012-08-01 | 汉钟精机股份有限公司 | Manufacturing method of vacuum machine screw rotor |
| CN102615474A (en) * | 2011-02-01 | 2012-08-01 | 汉钟精机股份有限公司 | Manufacturing method for compressor screw rotor |
| CN103492101A (en) * | 2011-12-28 | 2014-01-01 | 贝德洛工业公司 | Method and system for manufacturing railcar coupler locks |
| CN104550762A (en) * | 2014-12-23 | 2015-04-29 | 杭州德曼汽车零部件有限公司 | Casting mold for female and male rotors and pouring system of casting mold |
| CN111644601A (en) * | 2020-05-25 | 2020-09-11 | 谢传淞 | Casting die utensil of metal prefabricated spare |
| CN112548033A (en) * | 2021-01-04 | 2021-03-26 | 山西金冠机械制造股份有限公司 | Spiral rotor mold, demolding device and preparation method of mold |
| CN114985681A (en) * | 2022-06-21 | 2022-09-02 | 冰轮环境技术股份有限公司 | Spiral rotor casting method and machining device |
-
2008
- 2008-08-11 CN CNA2008100415659A patent/CN101342585A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615473A (en) * | 2011-02-01 | 2012-08-01 | 汉钟精机股份有限公司 | Manufacturing method of vacuum machine screw rotor |
| CN102615474A (en) * | 2011-02-01 | 2012-08-01 | 汉钟精机股份有限公司 | Manufacturing method for compressor screw rotor |
| CN102615474B (en) * | 2011-02-01 | 2014-08-06 | 汉钟精机股份有限公司 | Manufacturing method for compressor screw rotor |
| CN102615473B (en) * | 2011-02-01 | 2014-08-27 | 汉钟精机股份有限公司 | Manufacturing method of vacuum machine screw rotor |
| CN103492101A (en) * | 2011-12-28 | 2014-01-01 | 贝德洛工业公司 | Method and system for manufacturing railcar coupler locks |
| CN104550762A (en) * | 2014-12-23 | 2015-04-29 | 杭州德曼汽车零部件有限公司 | Casting mold for female and male rotors and pouring system of casting mold |
| CN104550762B (en) * | 2014-12-23 | 2017-06-06 | 杭州德曼汽车零部件有限公司 | Oil flooded compressors fine and close negative and positive rotor running gate system high and casting method |
| CN111644601A (en) * | 2020-05-25 | 2020-09-11 | 谢传淞 | Casting die utensil of metal prefabricated spare |
| CN112548033A (en) * | 2021-01-04 | 2021-03-26 | 山西金冠机械制造股份有限公司 | Spiral rotor mold, demolding device and preparation method of mold |
| CN114985681A (en) * | 2022-06-21 | 2022-09-02 | 冰轮环境技术股份有限公司 | Spiral rotor casting method and machining device |
| CN114985681B (en) * | 2022-06-21 | 2023-11-14 | 冰轮环境技术股份有限公司 | Spiral rotor casting method and processing device |
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Open date: 20090114 |