CN109177216A - A kind of production method of rotor of helical lobe compressor - Google Patents
A kind of production method of rotor of helical lobe compressor Download PDFInfo
- Publication number
- CN109177216A CN109177216A CN201810775679.XA CN201810775679A CN109177216A CN 109177216 A CN109177216 A CN 109177216A CN 201810775679 A CN201810775679 A CN 201810775679A CN 109177216 A CN109177216 A CN 109177216A
- Authority
- CN
- China
- Prior art keywords
- rotor
- wax
- pattern
- lobe compressor
- helical lobe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/082—Details specially related to intermeshing engagement type pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/20—Rotors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a kind of production methods of rotor of helical lobe compressor, comprising the following steps: S1, production have the master mold of identical appearance feature with the helical blade to rotor of helical lobe compressor；S2, master mold is placed in molding flask, the wax under molten condition is injected between master mold and moulding chamber interior wall, and stand cooling and solidifying and form wax-pattern；S3, master mold is screwed out from wax-pattern, then is placed in rotor central spindle into wax-pattern；S4, liquid resin is injected between rotor central spindle and wax-pattern inner wall, forms the plastic layer for being coated on rotor central spindle after making liquid resin primary solidification；S5, wax-pattern, rotor central spindle and plastic layer are taken out out of molding flask together, heating is completely melt wax-pattern and plastic layer is made to be fully cured to obtain rotor of helical lobe compressor.The method of the present invention is simple, rotor of helical lobe compressor one-pass molding, and precision is high, and base mould material is reusable, high-efficient, environmentally protective, at low cost.
Description
Technical field
The present invention relates to a kind of production methods of compressor drum, more particularly to a kind of production of rotor of helical lobe compressor
Method.
Background technique
Helical-lobe compressor be it is a kind of there are many merits and widely used rotary type displacement is mechanical, have high reliablity,
Components are few, few easy workout part, service life length, stable working, it is with small vibration, high-efficient many advantages, such as, but the shortcomings that also have it, it
Working centre is a pair of intermeshing metal screw rotor, and it is by vehicle, milling, mill etc. that the screw rotor cost is high
A series of cutting process is process, its three-dimensional flank of tooth needs to carry out on expensive special equipment by special cutter
Milling or grinding-shaping, processing cost is high, the development of helical-lobe compressor is constrained to a certain extent, especially in water lubrication spiral shell
Bar Compressor Technology field, water have certain action of rust to the screw rotor of metal, shorten water lubrication helical-lobe compressor
Service life.In order to overcome the defect of metallic rotator, a kind of rotor of novel screw compressor is metal core axle, plastics inside it
It is coated on outside metal core axle and constitutes screw rotor, the rotor quality is light, corrosion-resistant, process is simplified.The prior art
In, the plastic layer of rotor generallys use mold injection and forms, and general high-precision mold manufacturing cost is high, while also needing to consider to take off
Mould mode etc., production technology is complex.
Summary of the invention
In view of the above-mentioned defects in the prior art, the present invention provides a kind of production methods of rotor of helical lobe compressor, solve
Production technology is complicated, problem at high cost.
Technical solution of the present invention is as follows: a kind of production method of rotor of helical lobe compressor, comprising the following steps:
S1, production have the master mold of identical appearance feature with the helical blade to rotor of helical lobe compressor；
S2, master mold is placed in molding flask, the wax under molten condition is injected between master mold and moulding chamber interior wall, and stand cold
But it is formed by curing wax-pattern；
S3, master mold is screwed out from wax-pattern, then is placed in rotor central spindle into wax-pattern；
S4, liquid resin is injected between rotor central spindle and wax-pattern inner wall, makes to be formed after liquid resin primary solidification to be coated on
The plastic layer of rotor central spindle；
S5, wax-pattern, rotor central spindle and plastic layer are taken out out of molding flask together, heating is completely melt wax-pattern and makes to mould
The bed of material is fully cured to obtain rotor of helical lobe compressor.
Further, the step S4 makes liquid resin primary solidification, be will inject liquid resinous molding flask 20~
12h or more is stood in 40 DEG C of environment.
Further, the step S5 heating melts wax-pattern and plastic layer is fully cured to be 80~100 DEG C of temperature
4h or more is heated in environment.
Further, in the step S4 liquid resin stirred in vacuum pressure≤- 0.09MPa environment 30 minutes with
It is injected after upper.
Further, the liquid resin includes component bisphenol A epoxide resin, polyamide and filler, the bisphenol-A epoxy
The mass ratio of resin, polyamide and filler is 20 ︰, 4~5 ︰ 8~10.
Preferably, the filler is powdered graphite.
Compared with prior art, beneficial effect is technical solution of the present invention: firstly, this rotor of helical lobe compressor is using note
It penetrates, pouring forming technology, one-pass molding, saves a series of cumbersome cutting processes such as vehicle, milling, mill in traditional handicraft,
Machining period is saved, cost of labor is reduced, improves production efficiency；Secondly, this pouring technology uses paraffin mold, then lead to
The paraffin of heating removal rotor exterior is crossed, the paraffin of removal is recyclable to be recycled to reduce cost；Third, this pouring technology essence
Degree is high, does not generate harmful substance in forming process, environmentally protective, is suitble to produce in enormous quantities, at low cost, high-efficient.
Detailed description of the invention
Fig. 1 is the rotor of helical lobe compressor structural schematic diagram that embodiment 1 produces.
Fig. 2 is the rotor of helical lobe compressor structural schematic diagram that embodiment 2 produces.
Fig. 3 is the armature spindle cored structure schematic diagram of rotor of helical lobe compressor shown in FIG. 1
Fig. 4 is master structure schematic diagram.
Fig. 5 is that master mold is placed in molding flask schematic diagram.
Fig. 6 injects the wax schematic diagram under molten condition between master mold and moulding chamber interior wall.
Fig. 7 is that rotor central spindle schematic diagram is placed in wax-pattern.
Fig. 8 is that liquid resin schematic diagram is injected between rotor central spindle and wax-pattern inner wall.
Fig. 9 is wax-pattern, rotor central spindle and plastic layer combination schematic diagram.
Specific embodiment
Below with reference to embodiment, the invention will be further described, it should be understood that these embodiments be merely to illustrate the present invention and
It is not used in and limits the scope of the invention, after the present invention has been read, those skilled in the art are to various equal similar shapes of the invention
The modification of formula is fallen in the application range as defined in the appended claims.
Embodiment 1, the present embodiment rotor of helical lobe compressor structure to be produced is as shown in Figure 1, include rotor central spindle 1 and packet
The plastic layer 2 outside rotor central spindle 1 is overlayed on, plastic layer 2 constitutes the spiral shape outer shape of rotor.As shown in figure 3, rotor central spindle
1 is made of multiple flight 1a.The specific manufacturing method of the rotor of helical lobe compressor is as follows:
S1, production have the master mold 3 of identical appearance feature with the helical blade to rotor of helical lobe compressor, as shown in Figure 4；
S2, master mold 3 is placed in molding flask 4, as shown in figure 5, being infused between 4 inner wall of master mold 3 and molding flask by wax injector 5
Enter the wax under molten condition, and stand cooling and solidifying and form wax-pattern 6, as shown in Figure 6；
S3, master mold 3 is screwed out from wax-pattern 6, then screws in rotor central spindle 1 into wax-pattern 6, as shown in Figure 7；
S4, liquid resin is prepared, is in mass ratio 20 ︰, 4 ︰ 8 true by bisphenol A epoxide resin, polyamide and powdered graphite
It is stirred 30 minutes or more in pneumatics power≤- 0.09MPa environment.With resin pouring machine 7 between 6 inner wall of rotor central spindle 1 and wax-pattern
Injecting liquid resin makes shape after liquid resin primary solidification as shown in figure 8, molding flask is stood 12h or more in 20 DEG C of environment
At the plastic layer 2 for being coated on rotor central spindle 1；
S5, wax-pattern 6, rotor central spindle 1 and plastic layer 2 are taken out out of molding flask 4 together, as shown in figure 9, and being put into heating
Case, heater box is interior to can be positioned below liquid wax catch tray in workpiece, by 90 DEG C of baking 4h, is completely melt wax-pattern 6 and makes plastics
Layer 2 is fully cured to obtain rotor of helical lobe compressor, and the wax-pattern 6 of thawing is collected by liquid wax catch tray, is directly transferred to the storage of wax injector 5
In wax cylinder, dewaxing process is saved, the liquid wax of acquisition continues on for moulding wax-pattern 6, reduces process, realize the good of recycling and reusing
Good effect.
Embodiment 2, the present embodiment rotor of helical lobe compressor structure to be produced is as shown in Fig. 2, include 10 He of rotor central spindle
The plastic layer 20 being coated on outside rotor central spindle 10, plastic layer 20 constitute the spiral shape outer shape of rotor.Rotor central spindle 10 is
Circle straight-bar.The specific manufacturing method of the rotor of helical lobe compressor is as follows:
S1, production have the master mold of identical appearance feature with the helical blade to rotor of helical lobe compressor；
S2, master mold is placed in molding flask, the wax under molten condition is injected between master mold and moulding chamber interior wall, and stand
Cooling and solidifying forms wax-pattern；
S3, master mold is screwed out from wax-pattern, then is inserted into rotor central spindle 10 into wax-pattern；
S4, liquid resin is prepared, is in mass ratio 20 ︰, 5 ︰ 10 true by bisphenol A epoxide resin, polyamide and powdered graphite
It is stirred 30 minutes or more in pneumatics power≤- 0.09MPa environment.Liquid resin is injected between rotor central spindle 10 and wax-pattern inner wall,
Molding flask is stood into 12h or more in 30 DEG C of environment, forms the plastics for being coated on rotor central spindle after making liquid resin primary solidification
Layer 20；
S5, wax-pattern, rotor central spindle 10 and plastic layer 20 are taken out out of molding flask together, and is put into heated box, heated
It can be positioned below liquid wax catch tray in workpiece in case, by 80 DEG C of baking 5h, be completely melt wax-pattern and keep plastic layer 20 complete
Solidification obtains rotor of helical lobe compressor, and the wax-pattern of thawing is collected by liquid wax catch tray, is directly transferred in the wax storing chamber of wax injector, saves
Dewaxing process is gone, the liquid wax of acquisition continues on for moulding wax-pattern, reduces process, realize the good result of recycling and reusing.
Embodiment 3, the present embodiment rotor of helical lobe compressor structure to be produced is as shown in Figure 1, include rotor central spindle 1 and packet
The plastic layer 2 outside rotor central spindle 1 is overlayed on, plastic layer 2 constitutes the spiral shape outer shape of rotor.As shown in figure 3, rotor central spindle
1 is made of multiple flight 1a.The specific manufacturing method of the rotor of helical lobe compressor is as follows:
S1, production have the master mold 3 of identical appearance feature with the helical blade to rotor of helical lobe compressor, as shown in Figure 4；
S2, master mold 3 is placed in molding flask 4, as shown in figure 5, being infused between 4 inner wall of master mold 3 and molding flask by wax injector 5
Enter the wax under molten condition, and stand cooling and solidifying and form wax-pattern 6, as shown in Figure 6；
S3, master mold 3 is screwed out from wax-pattern 6, then screws in rotor central spindle 1 into wax-pattern 6, as shown in Figure 7；
S4, liquid resin is prepared, is in mass ratio 20 ︰, 5 ︰ 8 true by bisphenol A epoxide resin, polyamide and powdered graphite
It is stirred 30 minutes or more in pneumatics power≤- 0.09MPa environment.With resin pouring machine 7 between 6 inner wall of rotor central spindle 1 and wax-pattern
Injecting liquid resin makes shape after liquid resin primary solidification as shown in figure 8, molding flask is stood 12h or more in 20 DEG C of environment
At the plastic layer 2 for being coated on rotor central spindle 1；
S5, wax-pattern 6, rotor central spindle 1 and plastic layer 2 are taken out out of molding flask 4 together, as shown in figure 9, and being put into heating
Case, heater box is interior to can be positioned below liquid wax catch tray in workpiece, by 100 DEG C of baking 4h, is completely melt wax-pattern 6 and makes plastics
Layer 2 is fully cured to obtain rotor of helical lobe compressor, and the wax-pattern 6 of thawing is collected by liquid wax catch tray, is directly transferred to the storage of wax injector 5
In wax cylinder, dewaxing process is saved, the liquid wax of acquisition continues on for moulding wax-pattern 6, reduces process, realize the good of recycling and reusing
Good effect.
Claims (6)
1. a kind of production method of rotor of helical lobe compressor, which comprises the following steps:
S1, production have the master mold of identical appearance feature with the helical blade to rotor of helical lobe compressor；
S2, master mold is placed in molding flask, the wax under molten condition is injected between master mold and moulding chamber interior wall, and stood cooling solid
Change forms wax-pattern；
S3, master mold is screwed out from wax-pattern, then is placed in rotor central spindle into wax-pattern；
S4, liquid resin is injected between rotor central spindle and wax-pattern inner wall, formation after liquid resin primary solidification is made to be coated on rotor
The plastic layer of central spindle；
S5, wax-pattern, rotor central spindle and plastic layer are taken out out of molding flask together, heating is completely melt wax-pattern and makes plastic layer
It is fully cured to obtain rotor of helical lobe compressor.
2. the production method of rotor of helical lobe compressor according to claim 1, which is characterized in that the step S4 makes liquid
Resin primary solidification is will to inject liquid resinous molding flask to stand 12h or more in 20~40 DEG C of environment.
3. the production method of rotor of helical lobe compressor according to claim 1, which is characterized in that the step S5 heating makes
It is heating 4h or more in 80~100 DEG C of environment of temperature that wax-pattern, which melts and plastic layer is fully cured,.
4. the production method of rotor of helical lobe compressor according to claim 1, which is characterized in that liquid in the step S4
Injection after resin stirs 30 minutes or more in vacuum pressure≤- 0.09MPa environment.
5. the production method of rotor of helical lobe compressor according to claim 1, which is characterized in that the liquid resin includes
Component bisphenol A epoxide resin, polyamide and filler, the mass ratio of the bisphenol A epoxide resin, polyamide and filler be 20 ︰ 4~
5 ︰ 8~10.
6. the production method of rotor of helical lobe compressor according to claim 1, which is characterized in that the filler is powdery stone
Ink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810775679.XA CN109177216B (en) | 2018-07-16 | 2018-07-16 | Production method of screw compressor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810775679.XA CN109177216B (en) | 2018-07-16 | 2018-07-16 | Production method of screw compressor rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109177216A true CN109177216A (en) | 2019-01-11 |
| CN109177216B CN109177216B (en) | 2020-12-04 |
Family
ID=64936536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810775679.XA Expired - Fee Related CN109177216B (en) | 2018-07-16 | 2018-07-16 | Production method of screw compressor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109177216B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103392A (en) * | 2019-03-25 | 2019-08-09 | 盐城华亚石油机械制造有限公司 | A kind of Holes of Complicated Wells special anti-corrosion abrasion-proof sucker rod centralizer processing technology |
| IT202100025589A1 (en) * | 2021-10-07 | 2023-04-07 | Tm I C S R L Termomeccanica Ind Compressors | SCREW COMPRESSOR. |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003314475A (en) * | 2002-04-25 | 2003-11-06 | Hitachi Industries Co Ltd | Screw rotor, screw compressor equipped with screw rotor, and method of manufacturing screw rotor |
| CN1562523A (en) * | 2004-04-12 | 2005-01-12 | 齐志威 | Mould castings method |
| CN105728650A (en) * | 2014-12-09 | 2016-07-06 | 重庆凌云工具有限公司 | Precision casting method |
-
2018
- 2018-07-16 CN CN201810775679.XA patent/CN109177216B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003314475A (en) * | 2002-04-25 | 2003-11-06 | Hitachi Industries Co Ltd | Screw rotor, screw compressor equipped with screw rotor, and method of manufacturing screw rotor |
| CN1562523A (en) * | 2004-04-12 | 2005-01-12 | 齐志威 | Mould castings method |
| CN105728650A (en) * | 2014-12-09 | 2016-07-06 | 重庆凌云工具有限公司 | Precision casting method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103392A (en) * | 2019-03-25 | 2019-08-09 | 盐城华亚石油机械制造有限公司 | A kind of Holes of Complicated Wells special anti-corrosion abrasion-proof sucker rod centralizer processing technology |
| IT202100025589A1 (en) * | 2021-10-07 | 2023-04-07 | Tm I C S R L Termomeccanica Ind Compressors | SCREW COMPRESSOR. |
| EP4163495A1 (en) * | 2021-10-07 | 2023-04-12 | TM.I.C. S.r.l. Termomeccanica Industrial Compressors | Screw compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109177216B (en) | 2020-12-04 |
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