CN207549187U - A kind of complete smooth twin-screw extrusion machine rotor and double screw extruder with changeover portion - Google Patents
A kind of complete smooth twin-screw extrusion machine rotor and double screw extruder with changeover portion Download PDFInfo
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- CN207549187U CN207549187U CN201720816170.6U CN201720816170U CN207549187U CN 207549187 U CN207549187 U CN 207549187U CN 201720816170 U CN201720816170 U CN 201720816170U CN 207549187 U CN207549187 U CN 207549187U
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Abstract
The utility model discloses a kind of complete smooth twin-screw extrusion machine rotors and double screw extruder with changeover portion, and including left rotor (1) and right rotor (2), rotor (1) is identical with right rotor (2)；Left rotor (1) includes left changeover portion (601) and left engaged section (602)；The profile (201) of left rotor (1) includes 3 sections of orthodromes and 3 sections of small arc-shapeds, and each section of adjacent curve can be realized to be smoothly connected entirely；Gear block (301) stagger arrangement on left rotor (1) is distributed, and forms left engaged section (602)；Left engaged section (602) forepart is left changeover portion (601), and left changeover portion (601) is consistent with the profile of left engaged section (602)；During the work time, left rotor can realize correct engagement with right rotor.The utility model improves the mechanical characteristic of rotor, reduces the abrasion generated during rotor joggleword, improves the service life of rotor, reduce material leakage；And the engaged section of complete smooth rotor has material melting effect evenly.
Description
Technical field
The utility model is related to a kind of complete smooth twin-screw extrusion machine rotors and double screw extruder with changeover portion, use
In parallel dual-screw extruding machine, belong to polymer material mixing manufacture field, be particularly suitable in processing capacity is big, rotor speed is high
Occasion.
Background technology
Double screw extruder is mainly used for the mixing and molding of material, excellent because its treating capacity is big, torque is high and rotating speed is high
Point is widely used in oil, chemical industry, rubber and pharmaceutical industry.Its structure includes machine barrel and the screw rod set on inside machine barrel, spiral shell
Bar is placed in parallel.Wherein, screw mixing section includes mixing elements and mandrel, and mixing elements are socketed in mandrel.At present, it is common
Mixing elements have gear block and screwing element, and in practical applications, gear block obtains due to its melting effect is better than screwing element
Extensive use, and wherein three gear blocks, since its pressing cavity is more shallow than double end, shear extrusion effect becomes apparent from.The U.S.
Patent (the patent No.：US 8596856B2) refer to a kind of three gear block rotors for obtaining and widely applying in production field,
Its left and right rotor is made of respectively three sections of circular arc lines, and left and right rotor can realize correct engagement when synchronizing rotary motion in the same direction,
Material is by between rotor and extruding that rotor and the relative motion of machine bucket wall generate and shear action, so as to complete mixing process.
But there are shortcomings for the molded lines of rotor：Left rotor and right rotor, all there are cusp, are also easy to produce in circular arc line junction at position of cusp
Stress concentration and stress deformation cause abrasion to increase and material leakage problem in use；To material partial cut at cusp
Effect is excessive, material is caused to be kneaded uneven.
Invention content
The utility model in order to solve the problems, such as it is above-mentioned to lead to service life reduction there are cusp, propose a kind of with changeover portion
Complete smooth twin-screw extrusion machine rotor.It on the section molded line of rotor, is smoothly connected using orthodrome and small arc-shaped, cuts rotor
Engaging for original point and circular arc becomes engaging for circular arc and circular arc on the molded line of face, ensure that the smooth mistake of each section of adjacent curve
It crosses, by n (n=10~20) a gear block, the stagger arrangement arrangement generation on axis, rotor changeover portion are the end of rotor to the engaged section of rotor
Face molded line makees counter-clockwise helical expansion generation in an axial direction, realizes material transportation section to the even transition of engaged section.
To achieve these goals, the utility model adopts the following technical solution：
A kind of complete smooth twin-screw extrusion machine rotor with changeover portion including left rotor (1) and right rotor (2), turns left
The profile (201) of sub (1) is all smoothly connected by 6 sections of circular arcs and is formed, and is followed successively by counterclockwise：First orthodrome
AF, the first small arc-shaped FE, the second orthodrome ED, the second small arc-shaped DC, the third-largest circular arc C B, third small arc-shaped BA；6 sections of circular arc institutes
Corresponding central angle is 60 °；First orthodrome AF and the second concyclic hearts of small arc-shaped DC, centre point are I points；Second orthodrome
ED and the concyclic hearts of third small arc-shaped BA, centre point are H points；The third-largest circular arc C B and the first concyclic hearts of small arc-shaped FE, centre point are
G points；Centre point H, I, G line form equilateral triangle, length of side L；First orthodrome AF, the second orthodrome ED, third great circle
The radius of arc BC is identical, is R1；First small arc-shaped AB, the second small arc-shaped CD, the radius of third small arc-shaped EF are identical, are R3；First
Orthodrome AF, third orthodrome BC are connect with the first smooth inscribes of small arc-shaped AB；The profile (201) of left rotor (1) about
Left rotor (1) centre of gyration O points are into 120 ° of central symmetries；The profile (202) of right rotor (2) and the end face of left rotor (1)
Molded line (201) is identical.
A kind of complete smooth twin-screw extrusion machine rotor with changeover portion, the profile (201) of left rotor (1)
It is equal with the pitch radius of the profile (202) of right rotor (2), it is R2；Left rotor (1) and right rotor (2) motion mode are
Dual AC power in the same direction is synchronized, and can realize complete correct engagement；The first great circle in the profile (201) of left rotor (1)
Arc AF, the first small arc-shaped FE, the second orthodrome ED, the second small arc-shaped DC, the third-largest circular arc C B, third small arc-shaped BA, respectively with
The first small arc-shaped af, the first orthodrome fe, the second small arc-shaped ed, the second orthodrome in the profile (202) of right rotor (2)
Dc, third small arc-shaped cb, third orthodrome ba can realize correct engagement.
A kind of complete smooth twin-screw extrusion machine rotor with changeover portion, the profile (201) of left rotor (1)
Geometric parameter：R1, R2, R3, L meets following relationship：
R1=2R2-R3
L=R1-R3
First orthodrome AF equations are：
First small arc-shaped FE equations are：
More than：T-angle parameter.
A kind of complete smooth twin-screw extrusion machine rotor with changeover portion, left rotor (1) include left changeover portion
(601) and left engaged section (603)；Left engaged section (603) is arranged by n (n=10~20) a gear block (301) on axis into stagger arrangement
Cloth, stagger arrangement angle value are 10 °~30 °；Gear block (301) stretches generation by the profile (201) of left rotor (1)；Left transition
Section (601) makees counter-clockwise helical expansion generation in an axial direction for the profile (201) of left rotor (1)；Left rotor (1) and right rotor
(2) it is identical；Left rotor (1) can realize complete correct engagement with right rotor (2) when synchronous dual AC power moves in the same direction.
A kind of double screw extruder uses a kind of complete smooth twin-screw extrusion machine rotor with changeover portion.
The beneficial effects of the utility model are：
1. increasing one section of transition arc in rotor circular arc line junction, the engagement sealing of double screw extruder is improved
Property, reduce material leakage, improve the performance of the gear block of rotor；
2. the rotor realizes the complete of composition molded line and is smoothly connected, there is no rough points, improve rotor circular arc line company
The mechanical property at place is connect, improves the service life of rotor；
3. increasing complete smooth changeover portion before the engaged section of rotor, material melting effect is improved.
Description of the drawings
Fig. 1 is the face type line chart of the rotor proposed.
Fig. 2 is the profile engagement figure of the rotor proposed.
Fig. 3 is the engagement process figure of the profile of rotor proposed.
Fig. 4 is the engagement block diagram of the rotor proposed.
Fig. 5 is the engaged section figure of the rotor proposed.
Fig. 6 is the changeover portion figure of the rotor proposed.
Fig. 7 is the engagement figure of the rotor proposed.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, for the face type line chart of the rotor proposed；The profile (201) of left rotor (1) is by 6 sections of circles
Arc is all smoothly connected and is formed, and is followed successively by counterclockwise：First orthodrome AF, the first small arc-shaped FE, the second orthodrome
ED, the second small arc-shaped DC, the third-largest circular arc C B, third small arc-shaped BA；Central angle corresponding to 6 sections of circular arcs is 60 °；First is big
Circular arc AF and the second concyclic hearts of small arc-shaped DC, centre point are I points；Second orthodrome ED and the concyclic hearts of third small arc-shaped BA, the center of circle
Point is H points；The third-largest circular arc C B and the first concyclic hearts of small arc-shaped FE, centre point are G points；Centre point H, I, G line form equilateral
Triangle, length of side L；First orthodrome AF, the second orthodrome ED, the radius of third orthodrome BC are identical, are R1；First roundlet
Arc AB, the second small arc-shaped CD, the radius of third small arc-shaped EF are identical, are R3；First orthodrome AF, third orthodrome BC and first
The smooth inscribe connections of small arc-shaped AB；The profile (201) of left rotor (1) is about left rotor (1) centre of gyration O points into 120 °
Central symmetry, the first orthodrome AF, the first small arc-shaped FE in the profile (201) of left rotor (1) are inverse around symmetrical centre O points
After hour hands rotate 120 °, it is completely superposed with the second orthodrome ED, the second small arc-shaped DC not rotated, the face type of left rotor (1)
The first orthodrome AF, the first small arc-shaped FE in line (201) is after symmetrical centre O points rotate clockwise 120 °, with not rotating
The third-largest circular arc C B, third small arc-shaped BA are completely superposed；The profile (202) of right rotor (2) and the face type of left rotor (1)
Line (201) is identical；
The geometric parameter of the profile (201) of left rotor (1)：R1, R2, R3, L meets following relationship：
R1=2R2-R3
L=R1-R3
First orthodrome AF equations are：
First small arc-shaped FE equations are：
More than：T-angle parameter.
As shown in Fig. 2, for the profile engagement figure of the rotor proposed；I.e. the profile (201) of left rotor (1) and
The engagement of the profile (202) of right rotor (2), the profile (201) of left rotor (1) and the profile of right rotor (2)
(202) pitch radius is equal, is R2；Left rotor (1) and right rotor (2) motion mode are synchronous dual AC power in the same direction, and energy
Enough realize complete correct engagement；The first orthodrome AF, the first small arc-shaped FE in the profile (201) of left rotor (1), second
Orthodrome ED, the second small arc-shaped DC, the third-largest circular arc C B, third small arc-shaped BA, respectively with the profile of right rotor (2)
(202) the first small arc-shaped af, the first orthodrome fe, the second small arc-shaped ed, the second orthodrome dc, third small arc-shaped cb in,
Three orthodrome ba can realize correct engagement.
As shown in figure 3, for the engagement process figure of the profile of rotor proposed；That is the profile of left rotor (1)
(201) and the engagement figure of the profile of right rotor (2) (202)；Third roundlet in the profile (201) of left rotor (1)
Third orthodrome ba in the profile (202) of arc BA and right rotor (2) can realize correct engagement；It is left during the work time
Rotor (1), right rotor (2) meet correct meshing relation.
As shown in figure 4, for the engagement block diagram of the rotor proposed；The generating process of gear block (301) is by left rotor (1)
Profile (201) axial tension generation.
As shown in figure 5, for the changeover portion figure of the rotor proposed；Left changeover portion (601) is the face type of left rotor (1)
Line (201) makees counter-clockwise helical expansion generation in an axial direction；The generating mode of right changeover portion (602) and the life of left changeover portion (601)
It is identical into mode；Left changeover portion (601) can realize correct engagement with right changeover portion (602) in synchronous dual AC power in the same direction.
As shown in fig. 6, for the engaged section figure of the rotor proposed；Left engaged section (603) is by n (n=10~20) a engagement
Block (301) is arranged on axis into stagger arrangement, and stagger arrangement angle value is 10 °~30 °；The generating mode of right engaged section (604) is engaged with left
Section (603) is identical, while can realize correct engagement in dual AC power in the same direction is synchronized.
As shown in fig. 7, for the engagement figure of the rotor proposed；Left rotor (1) is identical with right rotor (2), by transition
Section and engaged section composition, the composition of left rotor (1) are followed successively by：Left changeover portion (601) and left engaged section (603)；Right rotor (2)
Composition be followed successively by：Right changeover portion (602) and right engaged section (604)；Left rotor (1) can be synchronous with right rotor (2) simultaneously
Correct engagement is realized in dual AC power in the same direction.
It is above-mentioned although specific embodiments of the present invention are described with reference to the accompanying drawings, but not to this practicality newly
The limitation of type protection domain, those skilled in the art should understand that, on the basis of the technical solution of the utility model, ability
Field technique personnel do not need to make the creative labor the various modifications or changes that can be made still in the protection model of the utility model
Within enclosing.
Claims (5)
1. a kind of complete smooth twin-screw extrusion machine rotor with changeover portion, including left rotor (1) and right rotor (2), feature
It is：The profile (201) of left rotor (1) is all smoothly connected by 6 sections of circular arcs and is formed, and is followed successively by counterclockwise：The
One orthodrome AF, the first small arc-shaped FE, the second orthodrome ED, the second small arc-shaped DC, the third-largest circular arc C B, third small arc-shaped BA；6
Central angle corresponding to section circular arc is 60 °；First orthodrome AF and the second concyclic hearts of small arc-shaped DC, centre point are I points；Second
Orthodrome ED and the concyclic hearts of third small arc-shaped BA, centre point are H points；The third-largest circular arc C B and the first concyclic hearts of small arc-shaped FE, circle
Heart point is G points；Centre point H, I, G line form equilateral triangle, length of side L；First orthodrome AF, the second orthodrome ED,
The radius of three orthodrome BC is identical, is R1；First small arc-shaped AB, the second small arc-shaped CD, the radius of third small arc-shaped EF are identical, are
R3；First orthodrome AF, third orthodrome BC are connect with the first smooth inscribes of small arc-shaped AB；The profile of left rotor (1)
(201) about left rotor (1) centre of gyration O points into 120 ° of central symmetries；The profile (202) and left rotor of right rotor (2)
(1) profile (201) is identical.
2. a kind of complete smooth twin-screw extrusion machine rotor with changeover portion as described in claim 1, it is characterized in that：Turn left
The pitch radius of the profile (201) of sub (1) and the profile (202) of right rotor (2) is equal, is R2；Left rotor (1) and
Right rotor (2) motion mode is synchronizes dual AC power in the same direction, and can realize complete correct engagement；The face type of left rotor (1)
The first orthodrome AF, the first small arc-shaped FE, the second orthodrome ED, the second small arc-shaped DC, the third-largest circular arc C B in line (201),
Third small arc-shaped BA, respectively in the profile of right rotor (2) (202) the first small arc-shaped af, the first orthodrome fe, second
Small arc-shaped ed, the second orthodrome dc, third small arc-shaped cb, third orthodrome ba can realize correct engagement.
3. a kind of complete smooth twin-screw extrusion machine rotor with changeover portion as described in claim 1, it is characterized in that：Turn left
The geometric parameter of the profile (201) of sub (1)：R1, R2, R3, L meets following relationship：
R1=2R2-R3
L=R1-R3
First orthodrome AF equations are：
First small arc-shaped FE equations are：
More than：T-angle parameter.
4. a kind of complete smooth twin-screw extrusion machine rotor with changeover portion as described in claim 1, it is characterized in that：Left rotor
(1) comprising left changeover portion (601) and left engaged section (603)；Left engaged section (603) is by n (n=10~20) a gear block (301)
It arranges on axis into stagger arrangement, stagger arrangement angle value is 10 °~30 °；Gear block (301) is drawn by the profile (201) of left rotor (1)
Stretch generation；Left changeover portion (601) makees counter-clockwise helical expansion generation in an axial direction for the profile (201) of left rotor (1)；Turn left
Sub (1) is identical with right rotor (2)；Left rotor (1) can have been realized with right rotor (2) when synchronous dual AC power moves in the same direction
Total correctness engages.
5. a kind of double screw extruder, it is characterized in that：Using as described in claim 1 a kind of complete smooth double with changeover portion
Screw Extrusion machine rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720816170.6U CN207549187U (en) | 2017-07-07 | 2017-07-07 | A kind of complete smooth twin-screw extrusion machine rotor and double screw extruder with changeover portion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720816170.6U CN207549187U (en) | 2017-07-07 | 2017-07-07 | A kind of complete smooth twin-screw extrusion machine rotor and double screw extruder with changeover portion |
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| Publication Number | Publication Date |
|---|---|
| CN207549187U true CN207549187U (en) | 2018-06-29 |
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| CN201720816170.6U Active CN207549187U (en) | 2017-07-07 | 2017-07-07 | A kind of complete smooth twin-screw extrusion machine rotor and double screw extruder with changeover portion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107116718A (en) * | 2017-07-07 | 2017-09-01 | 中国石油大学(华东) | A kind of complete smooth twin-screw extrusion machine rotor with changeover portion |
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2017
- 2017-07-07 CN CN201720816170.6U patent/CN207549187U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107116718A (en) * | 2017-07-07 | 2017-09-01 | 中国石油大学(华东) | A kind of complete smooth twin-screw extrusion machine rotor with changeover portion |
| CN107116718B (en) * | 2017-07-07 | 2023-06-27 | 中国石油大学(华东) | Full-smooth double-screw extruder rotor with transition section |
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