CN211441104U - Screw assembly of double-screw extruder - Google Patents
Screw assembly of double-screw extruder Download PDFInfo
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- CN211441104U CN211441104U CN201922004397.2U CN201922004397U CN211441104U CN 211441104 U CN211441104 U CN 211441104U CN 201922004397 U CN201922004397 U CN 201922004397U CN 211441104 U CN211441104 U CN 211441104U
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Abstract
The utility model discloses a screw component of a double-screw extruder, which comprises a first extrusion screw and a second extrusion screw, wherein the first extrusion screw and the second extrusion screw are arranged side by side and are both in a cavity structure, a first helical blade is fixedly arranged on the first extrusion screw, a second helical blade is fixedly arranged on the second extrusion screw, one end of the first extrusion screw is provided with a first rotating shaft through a coupler, one end of the second extrusion screw is provided with a second rotating shaft through a coupler, the first rotating shaft is provided with a first driven wheel through a key connection, the second rotating shaft is provided with a second driven wheel through a key connection, the first driven wheel and the second driven wheel are meshed in a driving wheel side by side, the first driven wheel and the second driven wheel are synchronously driven to rotate through the rotation of the driving wheel, so that the first extrusion screw and the second extrusion screw are driven to rotate by the first driven, the movement of the double-screw component is more stable.
Description
Technical Field
The utility model belongs to the technical field of extrusion equipment; in particular to a screw component of a double-screw extruder.
Background
The screw extrusion granulator consists of a driving part, a decelerating part, a transmission case, a main machine and the like, wet powdery materials added into the main machine are conveyed and compacted under the action of a specially designed screw element, are conveyed to a granulator head and are extruded out of a template to form cylindrical granular products, and thus the granulation purpose is achieved.
The twin-screw is the most important component of the twin-screw extruder, and for example, patent application No. (CN201220430405.5) discloses a screw assembly of the twin-screw extruder and a twin-screw assembly, wherein the screws in the twin-screw assembly are all solid structures, only play a role of driving helical blades to extrude raw materials, and have a problem of poor stability for driving the twin-screw.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a double screw extruder's screw rod subassembly to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a double screw extruder's screw rod subassembly, is including extruding screw rod one and extruding screw rod two, extrude screw rod one and extrude screw rod two and set up side by side and extrude screw rod one and extrude screw rod two and be the cavity structure, and the fixed helical blade that is provided with on extruding screw rod one, extrude screw rod two and go up fixed helical blade two that is provided with, the one end of extruding screw rod one is provided with pivot one through the shaft coupling, and the one end of extruding screw rod two is provided with pivot two through the shaft coupling, be provided with from driving wheel one through the key-type connection in pivot one, be provided with from driving wheel two through the key-type connection in pivot two, from driving wheel one with from driving wheel two meshing side by side inside the action wheel, the other end of extruding.
As a further aspect of the present invention: the inner ring of the driving wheel is provided with inner teeth, and the outer ring of the driving wheel is also provided with outer teeth.
As a further aspect of the present invention: the connecting sleeve comprises a supporting barrel, an annular block and an external thread, an internal thread is arranged inside one end of the first extrusion screw and one end of the second extrusion screw, which is abutted against the connecting sleeve, the external thread matched with the internal thread is arranged at one end of the supporting barrel, the supporting barrel is of a hollow structure, and the annular block is fixedly arranged at the middle position of the outer arc side face of the supporting barrel.
As a further aspect of the present invention: the first extrusion screw and the second extrusion screw are completely consistent.
As a further aspect of the present invention: the first helical blade is completely consistent with the second helical blade.
As a further aspect of the present invention: the first driven wheel is completely consistent with the second driven wheel.
The utility model has the advantages that:
1. the first extrusion screw and the second extrusion screw are both arranged into hollow structures, and in the using process of the first extrusion screw and the second extrusion screw, a heat source or a cold source can be introduced into the first extrusion screw and the second extrusion screw through the connecting sleeve, so that the temperature of the raw material in the extrusion cylinder can be regulated and controlled, and the connecting sleeve is rotatably connected in the annular groove through the annular block on the connecting sleeve, so that the first extrusion screw and the second extrusion screw can be erected conveniently, and the practicability of the double-screw assembly is improved;
2. the first driven wheel and the second driven wheel are synchronously driven to rotate through the rotation of the driving wheel, so that the first driven wheel and the second driven wheel drive the first extrusion screw and the second extrusion screw to rotate, and the movement of the double-screw rod assembly is more stable.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic front view of a screw assembly of a twin-screw extruder.
FIG. 2 is a schematic view of the meshing structure of a driving wheel and a driven wheel in a screw assembly of a twin-screw extruder.
FIG. 3 is a schematic view of the structure of a connecting sleeve in a screw assembly of a twin-screw extruder.
In the figure: the device comprises a first extrusion screw 1, a first spiral blade 2, a second extrusion screw 3, a second spiral blade 4, a connecting sleeve 5, a coupler 6, a first rotating shaft 7, a second rotating shaft 8, a driving wheel 9, a first driven wheel 10, a second driven wheel 11, a supporting cylinder 12, an annular block 13 and external threads 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, in an embodiment of the present invention, a screw assembly of a twin-screw extruder includes a first extrusion screw 1 and a second extrusion screw 3, the first extrusion screw 1 and the second extrusion screw 3 are arranged side by side, the first extrusion screw 1 and the second extrusion screw 3 are both in a cavity structure, a first helical blade 2 is fixedly arranged on the first extrusion screw 1, a second helical blade 4 is fixedly arranged on the second extrusion screw 3, one end of the first extrusion screw 1 is provided with a first rotating shaft 7 through a coupling 6, one end of the second extrusion screw 3 is provided with a second rotating shaft 8 through a coupling, the first rotating shaft 7 is provided with a first driven wheel 10 through a key connection, the second rotating shaft 8 is provided with a second driven wheel 11 through a key connection, the first driven wheel 10 and the second driven wheel 11 are engaged side by side inside a driving wheel 9, and the first driven wheel 10 and the second driven wheel 11 are synchronously driven by, the driven wheel I10 and the driven wheel II 11 drive the extrusion screw rod I1 and the extrusion screw rod II 3 to rotate, so that the movement of the double-screw rod component is more stable.
The other ends of the first extrusion screw rod 1 and the second extrusion screw rod 3 are provided with connecting sleeves 5, and the first extrusion screw rod 1 and the second extrusion screw rod 3 can be rotatably erected in an annular groove of the supporting device through annular blocks 13 on the connecting sleeves 5 under the auxiliary action of the connecting sleeves 5, so that the first extrusion screw rod 1 and the second extrusion screw rod 3 can rotate conveniently.
The inner ring of the driving wheel 9 is provided with inner teeth, and the outer ring of the driving wheel 9 is also provided with outer teeth.
The connecting sleeve 5 comprises a supporting barrel 12, an annular block 13 and an external thread 14, an internal thread is arranged at one end of the first extrusion screw 1, the second extrusion screw 3 and the connecting sleeve 5 which are abutted against each other, the external thread 14 matched with the internal thread is arranged at one end of the supporting barrel 12, the supporting barrel 12 is of a hollow structure, the annular block 13 is fixedly arranged at the middle position of the outer arc side surface of the supporting barrel 12, the first extrusion screw 1 and the second extrusion screw 3 are both arranged into the hollow structure, in the using process of the first extrusion screw 1 and the second extrusion screw 3, a heat source or a cold source can be introduced into the first extrusion screw 1 and the second extrusion screw 3 through the connecting sleeve 5, the regulation and control of the temperature of raw materials in the extrusion barrels are realized, the connecting sleeve 5 is connected in the annular groove through the annular block 13 on the connecting sleeve 5 in a rotating manner, so that the first extrusion screw 1 and the second extrusion screw 3 can be erected, the practicality of the double-screw assembly is improved.
The first extrusion screw 1 and the second extrusion screw 3 are completely consistent.
The first helical blade 2 is completely consistent with the second helical blade 4.
The driven wheel one 10 is identical to the driven wheel two 11.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.
Claims (6)
1. A screw assembly of a twin-screw extruder, characterized in that: comprises a first extrusion screw (1) and a second extrusion screw (3), wherein the first extrusion screw (1) and the second extrusion screw (3) are arranged side by side and are both in a cavity structure, a first helical blade (2) is fixedly arranged on the first extrusion screw rod (1), a second helical blade (4) is fixedly arranged on the second extrusion screw rod (3), one end of the first extrusion screw rod (1) is provided with a first rotating shaft (7) through a coupler (6), one end of the second extrusion screw rod (3) is provided with a second rotating shaft (8) through a coupler, the first rotating shaft (7) is provided with a first driven wheel (10) through key connection, the second rotating shaft (8) is provided with a second driven wheel (11) through key connection, the driven wheel I (10) and the driven wheel II (11) are meshed in the driving wheel (9) side by side, and the other ends of the first extrusion screw (1) and the second extrusion screw (3) are provided with connecting sleeves (5).
2. Screw assembly of a twin-screw extruder according to claim 1, characterized in that the inner ring of the driving wheel (9) is provided with internal teeth and the outer ring of the driving wheel (9) is also provided with external teeth.
3. The screw assembly of the twin-screw extruder according to claim 1, wherein the connecting sleeve (5) comprises a supporting cylinder (12), an annular block (13) and an external thread (14), an internal thread is formed inside one end of the first extruding screw (1) and the second extruding screw (3) which are abutted to the connecting sleeve (5), the external thread (14) matched with the internal thread is formed at one end of the supporting cylinder (12), the supporting cylinder (12) is of a hollow structure, and the annular block (13) is fixedly arranged in the middle of the outer arc side surface of the supporting cylinder (12).
4. Screw assembly of a twin-screw extruder according to claim 1, characterised in that the first (1) and the second (3) extrusion screws are identical.
5. Screw assembly of a twin-screw extruder according to claim 1, characterised in that the first helical blade (2) is identical to the second helical blade (4).
6. Screw assembly of a twin-screw extruder according to claim 1, characterised in that the driven wheel one (10) is identical to the driven wheel two (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922004397.2U CN211441104U (en) | 2019-11-19 | 2019-11-19 | Screw assembly of double-screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922004397.2U CN211441104U (en) | 2019-11-19 | 2019-11-19 | Screw assembly of double-screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211441104U true CN211441104U (en) | 2020-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922004397.2U Active CN211441104U (en) | 2019-11-19 | 2019-11-19 | Screw assembly of double-screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211441104U (en) |
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2019
- 2019-11-19 CN CN201922004397.2U patent/CN211441104U/en active Active
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