CN1231676C - All-extricated contact line single helical-lobe compressor intermeshing pair - Google Patents
All-extricated contact line single helical-lobe compressor intermeshing pair Download PDFInfo
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- CN1231676C CN1231676C CN 02115683 CN02115683A CN1231676C CN 1231676 C CN1231676 C CN 1231676C CN 02115683 CN02115683 CN 02115683 CN 02115683 A CN02115683 A CN 02115683A CN 1231676 C CN1231676 C CN 1231676C
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- screw
- screw rod
- envelope
- contact line
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Abstract
The present invention relates to a mesh pair of a single-screw compressor, which has the technical scheme that the bottom surface of a screw groove of a screw rod using a ring surface or a composite surface of a ring surface and a spherical surface as a female surface is a conjugation curved surface generated from envelopes according to matching motions prescribed by the single-screw compressor; the left side surface and the right side surface of the screw groove using a cylinder or a circular table as the female surface is a conjugation curved surface generated from envelopes according to matching motions prescribed by the single-screw compressor; a contact line of the working surface of the screw rod and the working surface of a star wheel in the position of the working surface of the star wheel is dissociative.
Description
Affiliated technical field
The present invention relates to single helical-lobe compressor intermeshing pair, especially the shape of screw rod.
Background technique
Star-wheel, screw engages pair are the critical components of single screw compressor, and as shown in Figure 1,1 is that screw rod, 2 is star-wheel.The working surface of star-wheel as shown in Figure 2,3 be the star-wheel left surface, 4 for star-wheel Topland, 5 for the star-wheel right flank; The screw rod working surface as shown in Figure 3,6 be the screw channel left surface, 7 for screw channel bottom surface, 8 for the screw channel right flank.Star-wheel left surface, Topland and right flank are meshed with screw channel left surface, bottom surface and right flank respectively.At present, the screw rod working surface of known single screw compressor is divided into two classes: ㈠ screw channel left surface and right flank are to be bus with the straight line, press the conjugate surface of the routing motion envelope generation of single screw compressor regulation, the screw channel bottom surface is to be bus with the circular arc line, presses the conjugate surface that the routing motion envelope of single screw compressor regulation generates; ㈡ screw channel left surface and right flank are to be generatrix with cylinder or round platform, press conjugate surface (the conjugate surface abbreviation cylindrical envelope face that following cylndrical surface envelope generates of the routing motion envelope generation of single screw compressor regulation, the conjugate surface that the round table surface envelope generates is called for short the round platform envelope surface), the screw channel bottom surface is identical with the ㈠ class.No matter be ㈠ class or ㈡ class screw rod working surface, its screw channel bottom surface all is to be bus with the circular arc line, presses the conjugate surface that the routing motion envelope of single screw compressor regulation generates.The position of the Line of contact of screw channel bottom surface and star-wheel Topland on the star-wheel working surface is changeless circular arc line, thereby wearing and tearing easily; According to envelope principle, the screw channel bottom surface can't process with rotating tool.
Summary of the invention
In order to overcome the deficiency of existing single screw compressor screw rod working surface, the present invention is designed to the screw channel bottom surface with anchor ring or is generatrix with the composite surface of anchor ring and sphere, press the conjugate surface (conjugate surface that following spherical envelope generates is called for short the ball envelope surface, and the conjugate surface of ring surface enveloped generation is called for short the ring envelope surface) of the routing motion envelope generation of single screw compressor regulation; Screw channel left surface and right flank are cylindrical envelope face or round platform envelope surface.Screw rod working surface such as Fig. 4 or shown in Figure 5,9 is cylinder or round platform envelope surface, and 10 is the ball envelope surface, and 11 are the ring envelope surface.Dissociate in the position of Line of contact on the star-wheel working surface of screw rod working surface and star-wheel working surface like this, and only need one rotating tool processed.
The invention has the beneficial effects as follows: star-wheel left surface, Topland and right flank all dissociate with the position of Line of contact on the star-wheel working surface of screw channel left surface, bottom surface and right flank respectively, the abrading section is disperseed more, reduced the wear extent in the unit area; And the screw rod working surface only needs one rotating tool processed.
Description of drawings
Fig. 1 is present known single helical-lobe compressor intermeshing pair, i.e. screw rod and star-wheel.
Fig. 2 is present known star-wheel working surface schematic representation.
Fig. 3 is present known screw rod working surface schematic representation.
Fig. 4 is a screw rod working surface schematic representation of the present invention, and the screw channel bottom surface is the composite surface of ball envelope surface and ring envelope surface.
Fig. 5 is a screw rod working surface schematic representation of the present invention, and the screw channel bottom surface is the ring envelope surface.
Fig. 6 is a screw rod working surface working drawing.
Fig. 7 is a screw rod working surface working drawing.
Fig. 8 is a screw rod working surface working drawing.
Embodiment
Machining tool of the present invention is a cylinder (or circular cone) shape bulb mould end mill, process step is as follows: the relative position of ㈠ screw blank and cutter as shown in Figure 6,1 is screw rod, and 12 is cutter, and the routing motion of stipulating by single screw compressor carries out envelope; The relative position of ㈡ screw blank and cutter as shown in Figure 7,1 is screw rod, 12 is cutter, carries out envelope by the routing motion of single screw compressor regulation; The relative position of ㈢ screw blank and cutter as shown in Figure 8,1 is screw rod, 12 is cutter, routing motion by the single screw compressor regulation carries out envelope, and at this moment, the position of cutter is between the centre of Fig. 6 and position shown in Figure 7, in order to guarantee the machining accuracy of screw rod working surface, can whenever move once along the position that the ring envelope surface moves cutter between Fig. 6 and tool position shown in Figure 7, then the routing motion by the single screw compressor regulation carries out first enveloped.The number of times that moves is many more, and then machining accuracy is high more.The order of process step ㈠, ㈡, ㈢ can be put upside down.
Claims (1)
1, a kind of single helical-lobe compressor intermeshing pair, screw channel left and right side on the screw rod is to be generatrix with cylinder or round platform, press the conjugate surface of the routing motion envelope generation of single screw compressor regulation, it is characterized in that: the screw channel bottom surface is to be generatrix with anchor ring or with the composite surface of anchor ring and sphere, presses the conjugate surface that the routing motion envelope of single screw compressor regulation generates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02115683 CN1231676C (en) | 2002-04-04 | 2002-04-04 | All-extricated contact line single helical-lobe compressor intermeshing pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02115683 CN1231676C (en) | 2002-04-04 | 2002-04-04 | All-extricated contact line single helical-lobe compressor intermeshing pair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1448638A CN1448638A (en) | 2003-10-15 |
| CN1231676C true CN1231676C (en) | 2005-12-14 |
Family
ID=28680653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02115683 Expired - Fee Related CN1231676C (en) | 2002-04-04 | 2002-04-04 | All-extricated contact line single helical-lobe compressor intermeshing pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1231676C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101910640B (en) * | 2007-12-28 | 2013-09-25 | 大金工业株式会社 | Single screw compressor |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649837B (en) * | 2009-06-25 | 2012-12-12 | 上海孚创螺杆技术有限公司 | Single-screw meshing mechanism with reducing generatrix two-time enveloping single-screw meshing molded line |
| CN106640628A (en) * | 2016-10-09 | 2017-05-10 | 广东技术师范学院 | Micro meshing clearance high-pressure screw pump |
| CN117415393B (en) * | 2023-12-18 | 2024-02-23 | 邯郸市质非凡紧固件有限公司 | Surface grinding device for processing outer hexagon bolts |
-
2002
- 2002-04-04 CN CN 02115683 patent/CN1231676C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101910640B (en) * | 2007-12-28 | 2013-09-25 | 大金工业株式会社 | Single screw compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1448638A (en) | 2003-10-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051214 Termination date: 20100404 |