CN105889066A - Combined screw rotor - Google Patents
Combined screw rotor Download PDFInfo
- Publication number
- CN105889066A CN105889066A CN201510476421.6A CN201510476421A CN105889066A CN 105889066 A CN105889066 A CN 105889066A CN 201510476421 A CN201510476421 A CN 201510476421A CN 105889066 A CN105889066 A CN 105889066A
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- CN
- China
- Prior art keywords
- rotor
- helix
- combined
- screw
- threaded rod
- 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.)
- Pending
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Abstract
The invention provides a screw rotor of a screw compressor or a screw expander or a screw extruder. A spiral line of the screw rotor is a combined spiral line formed by a plurality of spiral line bodies rotating along the axis of a rotor shaft, wherein the lift angle of the multiple spiral line bodies is larger than 0 degree and smaller than or equal to 90 degrees.
Description
Technical field
The present invention relates to helical-lobe compressor, screw expander or screw extruder, more particularly, to the screw rotor of helical-lobe compressor, screw expander or screw extruder.
Background technology
The varying pitch screw rotor of existing helical-lobe compressor, screw expander or screw extruder, current processed complex, processing cost is high.
Summary of the invention
It is an object of the invention to, for varying pitch screw rotor, propose a kind of combined threaded rod rotor replacing varying pitch screw rotor, the problem that it can solve existing varying pitch screw rotor machining difficulty.
The combined helical line that a plurality of lift angle angle that the helix of the combined threaded rod rotor of the present invention is rotated by the axis along the armature spindle helix more than 0 ° and less than or equal to 90 ° forms.Combined helical line described here is less than the helix of 90 ° including at least a lift angle.Such as, the helix of combined threaded rod rotor uses following several helixes: the helix that the helix that helix that helix that lift angle is 30 °, lift angle are 50 °, lift angle are 70 °, a plurality of lift angle are 90 °, these several helixes connect together along the axis of armature spindle successively, form whole piece combined helical line.Molded lines of rotor just can form combined threaded rod rotor curved surface along combined helical line drawing.Combined helical line can be split as the helix that multiple lift angle is different, and molded lines of rotor, along the helix stretching split, forms multi-disc single screw rotor sheet.When the lift angle of helix is equal to 90 °, helix is straight line, and screw rotor sheet curved surface is straight line curved surface, can use the method processing such as planer, line cutting and cut.
Multi-disc screw rotor sheet is had on the axis of the armature spindle of combined threaded rod rotor.Armature spindle and the most a piece of screw rotor sheet form whole single component.Other residue screw rotor sheets are arranged on armature spindle, after being fixed by modes such as key, bolt, nut, welding, form whole combined threaded rod rotor.
Accompanying drawing explanation
The preferred feature of the present invention is described referring now to accompanying drawing, wherein:
Fig. 1 is the combined threaded rod rotor part of a plurality of helix of intermeshing two kinds of different lift angles of employing;
Fig. 2 is the spiral trajectory curve of the screw rotor illustrating Fig. 1;
Fig. 3 is the molded lines of rotor the illustrating Fig. 2 stretching figure along combined helical line;
Fig. 4 is the screw rotor exploded perspective view illustrating Fig. 1;
Fig. 5 is the combined threaded rod rotor part of a plurality of helix of intermeshing four kinds of different lift angles of employing;
Fig. 6 is the spiral trajectory curve of the screw rotor illustrating Fig. 5;
Fig. 7 is the molded lines of rotor the illustrating Fig. 6 stretching figure along combined helical line;
Fig. 8 is the combined threaded rod rotor part of four helixes of intermeshing two kinds of different lift angles of employing;
Fig. 9 is the spiral trajectory curve of the screw rotor illustrating Fig. 8;
Figure 10 is the molded lines of rotor the illustrating Fig. 9 stretching figure along combined helical line.
Detailed description of the invention
Below in conjunction with the accompanying drawings and the present invention is expanded on further by embodiment.
Embodiment one (the combined threaded rod rotor part of a plurality of helix of intermeshing two kinds of different lift angles of employing)
It it is the engagement screws rotor part of the combined helical line of a plurality of helix composition using two kinds of different lift angles with reference first to Fig. 1, in the present embodiment, screw rotor parts 10 including engagement, wherein female screw rotor part 101 and sun screw rotor parts 102 engage each other motion, complete compression or expansion process.
Referring to figs. 2 and 3 the combined helical line tracking curve of screw rotor and the molded lines of rotor stretching figure that are the female screw rotor part 101 illustrating Fig. 1, the helix 3 of screw rotor parts 101 is a plurality of helix 3 of two kinds of different lift angles of axis 2 rotation along armature spindle: lift angle θ 1 is the helix 31 of 45 °, a plurality of lift angle θ 2 is the helix 32 of 90 °, these several helixes connect together along the axis of armature spindle successively, form whole piece combined helical line.Molded lines of rotor 4 along axis 2 circumgyration stretch of armature spindle, i.e. can get the spiral camber of screw rotor parts 101 according to the helix 3 of above-mentioned generation.
It is screw rotor parts 101 exploded perspective views with reference to Fig. 4, armature spindle 11 and the rotor sheet 12 that lift angle θ 1 is 45 ° are whole single component, successively rotor sheet 13 that multi-disc lift angle θ 2 is 90 °, key 14, clamp nut 15, axle sleeve 16, bolt 17 are assembled on armature spindle 11, form whole screw rotor parts 101.In order to prevent bolt looseness, it is also possible to use welding etc. to prevent the measure of bolt looseness.
Embodiment two (the combined threaded rod rotor part of a plurality of helix of intermeshing four kinds of different lift angles of employing)
Additionally, in the present embodiment, the symbol identical to the element labelling identical with the first embodiment and the repetitive description thereof will be omitted.The present embodiment is with the difference of embodiment one, with reference to Fig. 5, with reference to Fig. 6 with reference in Fig. 7, combined helical line 3 on screw rotor parts 103 is respectively adopted: lift angle θ 3 is the helix 33 of 30 °, lift angle θ 4 is the helix 34 of 50 °, lift angle θ 5 is the helix 35 of 70 °, a plurality of lift angle θ 6 is the helix 36 of 90 °, and these several helixes connect together along the axis of armature spindle successively, forms whole piece combined helical line.
Embodiment three (the combined threaded rod rotor parts of four helixes of intermeshing two kinds of different lift angles of employing)
Additionally, in the present embodiment, the symbol identical to the element labelling identical with the first embodiment and the repetitive description thereof will be omitted.The present embodiment is with the difference of embodiment two, with reference to Fig. 8, with reference to Fig. 9 with reference in Figure 10, combined helical line 3 on screw rotor parts 103 is respectively adopted: lift angle θ 7 is the helix 37 of 45 °, lift angle θ 8 is the helix 38 of 90 °, lift angle θ 9 is the helix 39 of 45 °, lift angle θ 10 is the helix 310 of 90 °, and these several helixes connect together along the axis of armature spindle successively, forms whole piece combined helical line.
Here description of the invention and application is illustrative, is not wishing to limit the scope of the invention in above-described embodiment.It should be appreciated by the person skilled in the art that in the case of without departing from the spirit or essential characteristics of the present invention, the combined helical line of the combined threaded rod rotor of the present invention can use other permutation and combination method to realize.
Claims (4)
1. a combined threaded rod rotor, it is characterised in that: the combined helical line that a plurality of lift angle angle that the helix of this combined threaded rod rotor is rotated by the axis along the armature spindle helix more than 0 ° and less than or equal to 90 ° forms.
Combined threaded rod rotor the most according to claim 1, it is characterised in that: combined helical line is less than the helix of 90 ° including at least a lift angle.
Combined threaded rod rotor the most according to claim 1, it is characterised in that: there is multi-disc screw rotor sheet on described armature spindle.
Combined threaded rod rotor the most according to claim 2, it is characterised in that: described armature spindle and the most a piece of screw rotor sheet form whole single component.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510476421.6A CN105889066A (en) | 2015-08-06 | 2015-08-06 | Combined screw rotor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510476421.6A CN105889066A (en) | 2015-08-06 | 2015-08-06 | Combined screw rotor |
Publications (1)
Publication Number | Publication Date |
---|---|
CN105889066A true CN105889066A (en) | 2016-08-24 |
Family
ID=57002263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510476421.6A Pending CN105889066A (en) | 2015-08-06 | 2015-08-06 | Combined screw rotor |
Country Status (1)
Country | Link |
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CN (1) | CN105889066A (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6341951B1 (en) * | 2000-05-26 | 2002-01-29 | Industrial Technology Research Institute | Combination double screw rotor assembly |
US20020031439A1 (en) * | 2000-05-26 | 2002-03-14 | Chun-Chien Chen | Combination double screw rotor assembly |
CN2902684Y (en) * | 2006-04-18 | 2007-05-23 | 四川省机械研究设计院 | Composite squeezer screw stem |
CN202140315U (en) * | 2011-06-13 | 2012-02-08 | 浙江佳力科技股份有限公司 | Sectional type varying-pitch rotor structure |
CN103062056A (en) * | 2012-12-29 | 2013-04-24 | 中国科学院沈阳科学仪器股份有限公司 | Screw rod type dry vacuum pump with combined screw rod rotor |
SE1200522A1 (en) * | 2012-08-30 | 2013-10-08 | Benny Lindbrandt | Ways to manufacture a hollow screw rotor and screw rotor made according to the method |
CN104526262A (en) * | 2014-11-04 | 2015-04-22 | 江西华电电力有限责任公司 | Method and product for manufacturing lamination type screw rotor |
-
2015
- 2015-08-06 CN CN201510476421.6A patent/CN105889066A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6341951B1 (en) * | 2000-05-26 | 2002-01-29 | Industrial Technology Research Institute | Combination double screw rotor assembly |
US20020031439A1 (en) * | 2000-05-26 | 2002-03-14 | Chun-Chien Chen | Combination double screw rotor assembly |
CN2902684Y (en) * | 2006-04-18 | 2007-05-23 | 四川省机械研究设计院 | Composite squeezer screw stem |
CN202140315U (en) * | 2011-06-13 | 2012-02-08 | 浙江佳力科技股份有限公司 | Sectional type varying-pitch rotor structure |
SE1200522A1 (en) * | 2012-08-30 | 2013-10-08 | Benny Lindbrandt | Ways to manufacture a hollow screw rotor and screw rotor made according to the method |
CN103062056A (en) * | 2012-12-29 | 2013-04-24 | 中国科学院沈阳科学仪器股份有限公司 | Screw rod type dry vacuum pump with combined screw rod rotor |
CN104526262A (en) * | 2014-11-04 | 2015-04-22 | 江西华电电力有限责任公司 | Method and product for manufacturing lamination type screw rotor |
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Application publication date: 20160824 |