CN101342576A - Sand mold molding method of spiral section in casting spiral rotor of compressor - Google Patents
Sand mold molding method of spiral section in casting spiral rotor of compressor Download PDFInfo
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- CN101342576A CN101342576A CNA2008100415644A CN200810041564A CN101342576A CN 101342576 A CN101342576 A CN 101342576A CN A2008100415644 A CNA2008100415644 A CN A2008100415644A CN 200810041564 A CN200810041564 A CN 200810041564A CN 101342576 A CN101342576 A CN 101342576A
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Abstract
The present invention relates to a method for the sand molding patternmaking of the helical part of the helical rotor of a compressor, and adopts the following steps: preparing the mould of the helical rotation part: a rotor mould that is shaped like the teeth of the helical rotor that is required to be cast is processed; installing the helical mould and a mould-removing mechanism: the rotor helical part mould of the compressor is installed on a supporting rod; pouring the sand pulp: resin sand pulp is poured into a sand cavity that is arranged between the outer die of the mould and the mould of the helical part, and the upper end surface is scrapped by a scrape plate; removing the mould: after the sand pulp is consolidated and formed, the mould of the helical part is removed from the sand mould by rotating a hand wheel so as to form a helical sand mould; the outer die of the mould is released and the helical sand mould is taken off; the method of the present invention has the advantages that the materials are saved, the manufacturing procedures are simplified and the manufacturing cost are greatly reduced.
Description
Technical field
The present invention relates to a kind of spiral rotor of compressor, relate in particular to a kind of sand mold molding method of spiral section that adopts this spiral rotor of compressor of casting.
Background technology
Rotor is the heart of compressor, helical rotor present one of rotor type of extensive use the most especially wherein, and its range of application is quite extensive, also as cold coal compressor, air compressor, refrigerant condenser and dry type compressor etc.
Yet casting spiral rotor method now is a lot, and the quality that the spire sand mo(u)ld is made is related to the quality of whole helical rotor and compressor especially.Because the particularity of spire structure, how to reach a kind ofly save material, simplify fabrication schedule and significantly improve the compressor drum quality sand mo(u)ld manufacture method and how to make sand mo(u)ld and take out mould smoothly that to keep the integrality of sand mo(u)ld be the problem that each compressor manufacturer must solve.
Summary of the invention
The technical issues that need to address of the present invention have provided sand mold molding method of spiral section in a kind of casting 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 spiral transfer part mould: process an identical rotor mould of casting with needs of helical rotor profile of tooth;
Spiral mould and mould emptier are installed: compressor drum spire mould is installed on the support bar;
Perfusion mortar; Resin mortar is poured in the sand chamber between mould external mold and the spire mould, and utilize scraper plate to wipe the upper surface off;
The demoulding: treat to rotate handwheel behind the mortar coagulation forming, the spire mould is deviate from from sand mo(u)ld, promptly form the spiral sand mo(u)ld;
Unclamp the mould external mold, take off the spiral sand mo(u)ld.
Compared with prior art, the invention has the beneficial effects as follows: can save material, simplify fabrication schedule and significantly reduce manufacturing cost.
Description of drawings
Fig. 1 is a flow chart of the present invention.
Fig. 2 is the equipment sectional structure chart that adopts among the present invention.
Fig. 3 is the vertical view of Fig. 2.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail:
By Fig. 1, Fig. 2, Fig. 3 as seen: the present invention realizes by following steps:
A, preparation spiral transfer part mould: design an identical rotor mould of casting with needs of helical rotor profile of tooth, simultaneously design mould emptier as shown in Figure 2.This mechanism is made up of spire mould 1, mould external mold 2, back-up block 3, handwheel 4, support bar 5, support 7 and workbench 8.
B, installation spiral mould and mould emptier: a: compressor drum spire mould is fixed on the workbench by back-up block and support bar, be equipped with on the support bar that handwheel can drive support bar and compressor drum spire mould rotates together, have on the helical guide groove and the identical profile of tooth of compressor drum spire flute profile, can slide smoothly by it for the spire mould; B: compressor drum spire mould is installed on the support bar, note making the mould increment to aim at during installation with helical guide groove, be convenient to mould landing (note: when processing helical guide groove 9, guarantee that it adds the Chinese musical scale type and spiral mould chi type can not have deviation, can't landing) to prevent spiral mould.
C, perfusion mortar: resin mortar poured in the sand chamber between mould external mold and the spire mould (see figure 3) and in the process of perfusion mortar progressively by the tight sand slurry until being full of whole sand chamber, utilize scraper plate to wipe the upper surface off at last.
D, the demoulding: treat to extract behind the mortar coagulation forming on the support bar on alignment pin 10, and (look up) in the direction of the clock and rotate handwheel, the spire mould is slowly deviate from from sand mo(u)ld, promptly form the spiral sand mo(u)ld.
E, unclamp the mould external mold, take off the spiral sand mo(u)ld.
Wherein, the spire mould in step (A) has certain wearability, and its material surface needs Quenching Treatment, can not change to guarantee the rotor size that is cast out after thousands of castings;
One alignment pin 10 is arranged on the support bar in step (B), when turning handle makes spiral mould be positioned on the workbench fully, plug alignment pin 10 and prevent that the spiral mould landing causes perfusion failure when perfusion mortar;
When in step (B), making helical guide groove, should guarantee its spiral size, to prevent that when the demoulding, spiral mould can't come off smoothly, causes perfusion failure.
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 (2)
1, sand mold molding method of spiral section in a kind of casting spiral rotor of compressor, realize by following steps:
(1), prepares spiral transfer part mould: process an identical rotor mould of casting with needs of helical rotor profile of tooth;
(2), spiral mould and mould emptier are installed: compressor drum spire mould is installed on the support bar;
(3), perfusion mortar; Resin mortar is poured in the sand chamber between mould external mold and the spire mould, and utilize scraper plate to wipe the upper surface off;
(4), the demoulding: treat to rotate handwheel behind the mortar coagulation forming, the spire mould is deviate from from sand mo(u)ld, promptly form the spiral sand mo(u)ld;
(5), unclamp the mould external mold, take off the spiral sand mo(u)ld.
2, method according to claim 1, wherein: the material surface of the spire mould in step (1) needs Quenching Treatment;
In step (2), on the support bar alignment pin is arranged, when turning handle makes spiral mould be positioned on the workbench fully, plug alignment pin and prevent that the spiral mould landing causes perfusion failure when perfusion mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100415644A CN101342576A (en) | 2008-08-11 | 2008-08-11 | Sand mold molding method of spiral section in casting spiral rotor of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100415644A CN101342576A (en) | 2008-08-11 | 2008-08-11 | Sand mold molding method of spiral section in casting spiral rotor of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101342576A true CN101342576A (en) | 2009-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100415644A Pending CN101342576A (en) | 2008-08-11 | 2008-08-11 | Sand mold molding method of spiral section in casting spiral rotor of compressor |
Country Status (1)
| Country | Link |
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| CN (1) | CN101342576A (en) |
Cited By (6)
| 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 |
| CN103406495A (en) * | 2013-07-31 | 2013-11-27 | 西安交通大学 | Method for casting screw rotor of single-screw compressor |
| CN105728658A (en) * | 2014-12-11 | 2016-07-06 | 复盛股份有限公司 | Method for making spiral casting, casting mold structure and model of casting mold structure |
| CN106914589A (en) * | 2017-04-21 | 2017-07-04 | 响水县融升空调设备有限公司 | A kind of oil pump for engine rotor forming die |
| CN108290208A (en) * | 2015-12-09 | 2018-07-17 | 株式会社神户制钢所 | Core sand moulding method and core sand moulding device |
-
2008
- 2008-08-11 CN CNA2008100415644A patent/CN101342576A/en active Pending
Cited By (10)
| 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 |
| CN103406495A (en) * | 2013-07-31 | 2013-11-27 | 西安交通大学 | Method for casting screw rotor of single-screw compressor |
| CN103406495B (en) * | 2013-07-31 | 2015-10-28 | 西安交通大学 | A kind of screw rotor of single-screw compressor casting method |
| CN105728658A (en) * | 2014-12-11 | 2016-07-06 | 复盛股份有限公司 | Method for making spiral casting, casting mold structure and model of casting mold structure |
| CN105728658B (en) * | 2014-12-11 | 2018-08-14 | 复盛股份有限公司 | The casting die structure and its model of spiral casting |
| CN108290208A (en) * | 2015-12-09 | 2018-07-17 | 株式会社神户制钢所 | Core sand moulding method and core sand moulding device |
| CN106914589A (en) * | 2017-04-21 | 2017-07-04 | 响水县融升空调设备有限公司 | A kind of oil pump for engine rotor forming die |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090114 |