CN101422714A - Main reducing gear output-axis key phase adjustment mechanism of large-scale twin-screw extrusion pelletizer - Google Patents
Main reducing gear output-axis key phase adjustment mechanism of large-scale twin-screw extrusion pelletizer Download PDFInfo
- Publication number
- CN101422714A CN101422714A CNA2008102288249A CN200810228824A CN101422714A CN 101422714 A CN101422714 A CN 101422714A CN A2008102288249 A CNA2008102288249 A CN A2008102288249A CN 200810228824 A CN200810228824 A CN 200810228824A CN 101422714 A CN101422714 A CN 101422714A
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- gear
- distribution stage
- output shaft
- driven gear
- phase adjustment
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- Extrusion Moulding Of Plastics Or The Like (AREA)
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Abstract
The invention relates to phase adjustment of an output shaft key that is connected with a main machine screw rod in a double-screw speed reducer, discloses a hydraulic mechanism of the phase adjustment of the output shaft key of a main speed reducer of a large-scale double-screw squeezing pelletizing machine set, in the hydraulic mechanism, a back distributing drive gear is provided coaxially with a long output shaft and is joggled with a back distributing driven gear which is connected with the shaft in interference fit and coaxially provided with a front distributing drive gear that is joggled with a gear on a short output shaft, the back distributing driven gear or a coupling shaft which is interference fitted with the back distributing driven gear is opened with an oil passage for communicating the gear with a contact surface of the interference fited coupling shaft. The phase adjustment of the output shaft key has simple and easy operations as well as convenient and reliable adjustment, avoids repeated assembly and disassembly of assembled parts of the speed reducer due to the phase adjustment, greatly reduces labor intensity, and most importantly ensures high assembly precision.
Description
One, technical field
The phase place adjustment of two output axle keys that the present invention relates to be connected with main-machine screw in the twin-screw extruder grain unit main reducing gear.
Two, background technology
The main reducing gear of the dual-screw pelletizer group in petrochemical industry, the plastic industry has two output shafts at present, need export the adjustment of axle key phase place during assembling, the key phase place adjustment of reducer output shaft at present relies on that axle connects with pin or the on-the-spot location of key between the gear, the connection of swelling cover, the connection meeting of the on-the-spot location of pin or key brings a lot of inconvenience to assembled in situ, as the dismounting repeatedly of improper needs, duplication of labour intensity is big, and the precision of adjusting is low; The swelling cover connects then coupled outside diameter of gear size and wants big 4-7 doubly.。
Three, summary of the invention
The objective of the invention is to overcome above-mentioned not enough problem, provide a kind of large-scale twin-screw extruder grain unit reducer output shaft key phase place to adjust hydraulic mechanism, method is simple, need not dismounting, adjusts the precision height.
The technical scheme that the present invention is adopted for achieving the above object is: large-scale twin-screw extruder grain unit main reducing gear output axle key phase place is adjusted hydraulic mechanism; be equipped with back distribution stage driving gear with coaxial connection of long output shaft; back distribution stage driving gear engagement back distribution stage driven gear; back distribution stage driven gear connects with the coupling spindle interference fit; distribution stage driving gear before coaxial being equipped with; before gear on the short output shaft of distribution stage driving gear engagement, offer the oil duct of connection gear and its coupling spindle contact-making surface on back distribution stage driven gear or the coupling spindle that is mated.
Offer the oil duct that is communicated with the coupling spindle contact-making surface that gear is mated on the distribution stage driven gear of described preferred back, oil duct is the passage from the gear outside wall surface to internal face.
Described oil duct is a 2-4 oil duct.
The present invention compares with present method of adjustment has outstanding feature: adopt oil pressure to make gear expand in the decelerator of large-scale twin-screw extruder grain unit; connects by key or pin between gear and the coupling spindle and become the interference fit connection; to realize adjusting the key phase place between decelerator two output shafts; adjust the back draining; pressure disappearance gear recovers the interference fit coupled situation again with cooperating coupling spindle; the invention provides a kind of adjustment scheme of novelty; simple to operation; and oil pressure is communicated with and can adjusts by hydraulic mechanism and oil pipe; convenient and reliable; each parts of decelerator after finishing, can not dismantled because of the adjustment of phase place repeatedly in assembling; assembling; significantly reduce labour intensity, the more important thing is to guarantee the assembly precision height.
Four, description of drawings
Fig. 1 is the structural representation of invention.
Fig. 2 is a back distribution stage driven gear cutaway view.
Five, the specific embodiment
Below in conjunction with accompanying drawing this reality there be novel being described in further detail:
Large-scale twin-screw extruder grain unit main reducing gear output axle key phase place is as shown in Figure 1 adjusted hydraulic mechanism; decelerator has two joining output shafts of two screw rods with large-scale twin-screw extruder grain unit main frame; promptly long output shaft 6 and short output shaft 7; to keep certain position relation between the key of two output shafts; it is phase place; could guarantee the operate as normal of unit; the long output shaft 6 coaxial back distribution stage driving gears 3 that are equipped with; back distribution stage driving gear 3 engagement back distribution stage driven gear 1 and back distribution stage driven gears 2; back distribution stage driven gear 1; 2 respectively with cooperate coupling spindle 4 separately; 5 interference fit connect; coupling spindle 4; distribution stage driving gear 8 before 5 coaxial respectively being equipped with; 9; preceding distribution stage driving gear 8; gear on the short output shaft 7 of 9 engagements simultaneously, back distribution stage driven gear 1; offer 3 on 2 and be communicated with the oil duct 10 (as shown in Figure 2) that gear is mated the coupling spindle contact-making surface.Oil duct 10 also can be opened on the coupling spindle 4,5 that cooperates with back distribution stage driven gear 1,2, and oil duct is communicated with gear and coupling spindle contact-making surface.
The present invention also is applicable to single-stage engagement or multistage meshing gear system.
When the key phase place that adopts said structure to carry out two output shafts is adjusted, at first will long output shaft 6, short output shaft 7 is fixing on request by the key phase place of two output shafts, inject hydraulic oil in the oil duct of distribution stage driven gear 1 and 2 oil duct or the coupling spindle 4 that is mated and 5 backward respectively by hydraulic test, hydraulic oil enters the contact-making surface that cooperates between back distribution stage driven gear 1 and the coupling spindle 4 along oil duct, and cooperate contact-making surface between back distribution stage driven gear 2 and the coupling spindle 5, back distribution stage driven gear 1 and 2 endoporus expand, make the interference fit between back distribution stage driven gear 1 and the coupling spindle 4, interference fit between back distribution stage driven gear 2 and the coupling spindle 5 disappears, rotate and move axially back distribution stage driven gear 1 this moment respectively, back distribution stage driven gear 2, make itself and back distribution stage driving gear 3 correct engagement, control hydraulic system then and remove hydraulic oil, between back distribution stage driven gear 1 and the coupling spindle 4, and connecting between back distribution stage driven gear 2 and the coupling spindle 5 returning to the interference fit connection, the phase place adjustment is finished.
Claims (3)
1, large-scale twin-screw extruder grain unit reducer output shaft key phase place is adjusted hydraulic mechanism; the coaxial back distribution stage driving gear (3) that is equipped with of long output shaft (6); back distribution stage driving gear engagement back distribution stage driven gear; back distribution stage driven gear connects with the axle interference fit; distribution stage driving gear before coaxial being equipped with; gear on the short output shaft of preceding distribution stage driving gear engagement offers the oil duct (10) that the connection gear is mated the coupling spindle contact-making surface on back distribution stage driven gear or the interference fit coupling spindle.
2, large-scale twin-screw extruder grain unit main reducing gear output axle key phase place according to claim 1 is adjusted hydraulic mechanism; it is characterized in that: offer the oil duct (10) that the connection gear is mated the coupling spindle contact-making surface on the distribution stage driven gear of back, oil duct is the passage from back distribution stage driven gear outside wall surface to internal face.
3, large-scale twin-screw extruder grain unit main reducing gear output axle key phase place according to claim 1 and 2 is adjusted hydraulic mechanism, and it is characterized in that: oil duct (10) is 2-4 oil duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102288249A CN101422714A (en) | 2008-11-13 | 2008-11-13 | Main reducing gear output-axis key phase adjustment mechanism of large-scale twin-screw extrusion pelletizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102288249A CN101422714A (en) | 2008-11-13 | 2008-11-13 | Main reducing gear output-axis key phase adjustment mechanism of large-scale twin-screw extrusion pelletizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101422714A true CN101422714A (en) | 2009-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102288249A Pending CN101422714A (en) | 2008-11-13 | 2008-11-13 | Main reducing gear output-axis key phase adjustment mechanism of large-scale twin-screw extrusion pelletizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101422714A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852285A (en) * | 2010-05-21 | 2010-10-06 | 胡炜 | Double shunting reducer and transmission shaft thereof |
| CN102155403A (en) * | 2011-04-28 | 2011-08-17 | 大连橡胶塑料机械股份有限公司 | Phase adjustment method of gear rotors in melt gear pump |
| CN104802329A (en) * | 2015-02-28 | 2015-07-29 | 卢寿同 | Energy-saving universal type plastic hot cutting machine |
| CN106393629A (en) * | 2015-03-27 | 2017-02-15 | 伦克股份有限公司 | Transmission structure of drive for twin-screw extruder |
-
2008
- 2008-11-13 CN CNA2008102288249A patent/CN101422714A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852285A (en) * | 2010-05-21 | 2010-10-06 | 胡炜 | Double shunting reducer and transmission shaft thereof |
| CN102155403A (en) * | 2011-04-28 | 2011-08-17 | 大连橡胶塑料机械股份有限公司 | Phase adjustment method of gear rotors in melt gear pump |
| CN104802329A (en) * | 2015-02-28 | 2015-07-29 | 卢寿同 | Energy-saving universal type plastic hot cutting machine |
| CN104802329B (en) * | 2015-02-28 | 2016-10-12 | 卢寿同 | Energy-saving universal plastic hot-cutting machine |
| CN106393629A (en) * | 2015-03-27 | 2017-02-15 | 伦克股份有限公司 | Transmission structure of drive for twin-screw extruder |
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Application publication date: 20090506 |