CN109595308A - The twin-screw reduction gearbox of planetary differential variable speed - Google Patents
The twin-screw reduction gearbox of planetary differential variable speed Download PDFInfo
- Publication number
- CN109595308A CN109595308A CN201811519031.2A CN201811519031A CN109595308A CN 109595308 A CN109595308 A CN 109595308A CN 201811519031 A CN201811519031 A CN 201811519031A CN 109595308 A CN109595308 A CN 109595308A
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- Prior art keywords
- transmission group
- fixed axis
- motor
- gear transmission
- differential
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- 230000009467 reduction Effects 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 34
- 230000008859 change Effects 0.000 claims description 4
- 239000004033 plastic Substances 0.000 abstract description 7
- 229920003023 plastic Polymers 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 3
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses a kind of twin-screw reduction gearboxes of planetary differential variable speed, the deceleration part of reduction gearbox is differential speed variator, the differential speed variator is connect by Z1/Z2 fixed axis gear transmission group with main motor, and the differential speed variator passes sequentially through Z7/Z8 fixed axis gear transmission group, Z5/Z6 fixed axis gear transmission group, Z3/Z4 fixed axis gear transmission group and connect with auxiliary-motor.The invention has the characteristics that three kinds of driving forms of host twin-screw may be implemented, it is especially able to achieve variable speed of the host twin-screw within the scope of certain speedup, to meet the production requirement of different melt index plastics.
Description
Technical field
The present invention relates to reduction gearbox fields, and in particular to one kind is mainly used in petrochemical industry large-sized squeezing granulation unit
It can also be used for the twin-screw reduction gearbox of the planetary differential variable speed of other industry.
Background technique
Large-scale in the same direction or incongruous double screw mixing extrusion pelleting machine set (200,000 tons/year or more) is the important of petrochemical industry
The powder generated in the product of upstream is produced into pellet by extrusion granulation unit, reapplied as masterbatch, large size is kneaded by equipment
Extrusion granulation unit be furnished with a main motor and an auxiliary-motor, the power of main motor is very big, generally several megawatts even
Up to ten thousand kilowatts, using alternating current generator, the power of auxiliary-motor is about 20% or so of the power of main motor, using alternating-current variable frequency motor.
Since the melt index of plastics is different, twin-screw set is in same number of moving part, melt index low modeling when work
Material, the operation torque needed is with regard to big；The high plastics of melt index, for the operation torque needed with regard to small, problem is current large-scale extruding
The torque of the output for the twin-screw main speed reduction box being granulated in unit be it is constant, since main motor is alternating current generator, power is solid
Fixed, and produce different melt index plastic products requirement double screw extruders and correspond to different revolving speeds, ideal main deceleration
The main motor of case is that variable-frequency motor is just able to satisfy the different output revolving speed requirement of offer.
For the requirement for producing different melt index plastics, the method generallyd use both at home and abroad at present is the double of mechanical gear shift
Fast reduction gearbox, the disadvantage is that only two grades, it cannot effectively meet the production requirement of different melt index plastics.
Summary of the invention
Problem that the purpose of the present invention is to overcome the above shortcomings, the twin-screw for providing a kind of planetary differential variable speed slow down
Case.
Present invention technical solution used for the above purpose is: the twin-screw of planetary differential variable speed slows down
Case, the deceleration part of reduction gearbox are differential speed variator, and the differential speed variator passes through Z1/Z2 fixed axis gear transmission group and main motor
Connection, the differential speed variator pass sequentially through Z7/Z8 fixed axis gear transmission group, Z5/Z6 fixed axis gear transmission group, Z3/Z4 dead axle
Gear drive group is connect with auxiliary-motor.
The differential speed variator is planetary differential stepless transmission, including solar energy, interior outer gear ring, planetary gear, planet carrier,
Power is passed to the sun gear of differential speed variator, the pair by Z1/Z2 fixed axis gear transmission group primary speed-down by the main motor
Motor passes sequentially through Z3/Z4 fixed axis gear transmission group, Z5/Z6 fixed axis gear transmission group, Z7/Z8 fixed axis gear transmission group three-level and subtracts
Power is passed to the interior outer gear ring of differential speed variator by speed.
The main motor is alternating current generator, and the auxiliary-motor is variable-frequency motor.
The main motor output end is equipped with overload-release clutch, and the auxiliary-motor output end is equipped with freewheel clutch.
The invention has the characteristics that three kinds of driving forms of host twin-screw may be implemented, it is especially able to achieve host twin-screw
Variable speed within the scope of certain speedup, to meet the production requirement of different melt index plastics.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.
Fig. 1 is structural schematic diagram of the invention
Fig. 2 is deceleration part schematic diagram of the invention.
Fig. 3 is differential speed variator schematic diagram of the invention.
Fig. 4 is fixed speed ratio transmission schematic diagram of the present invention.
Fig. 5 is the differential speed ratio transmission schematic diagram of the present invention.
Fig. 6 is planetary gear schematic diagram of the present invention.
Fig. 7 is permanent torque schematic diagram of the invention.
Fig. 8 is deceleration part transmission system simulation model figure of the invention.
Fig. 9 is differential speed variator simulation model figure of the invention.
Wherein: 1, main motor 2, safety coupling 3, differential speed variator 31, sun gear 32, interior outer gear ring 33, planet
Wheel 34, planet carrier 4, freewheel clutch 5, auxiliary-motor 6, Z1/Z2 fixed axis gear transmission group 7, the transmission of Z3/Z4 fixed axis gear
Group 8, Z5/Z6 fixed axis gear transmission group 9, Z7/Z8 fixed axis gear transmission group.
Specific embodiment
If used some vocabulary in the specification and claims to censure specific components, those skilled in the art are answered
It is understood that hardware manufacturer may call the same component with different nouns, this specification and claims are not with name
The difference of title is such as being led to as the mode for distinguishing component, but with the difference of component functionally as the criterion of differentiation
The "comprising" of piece specification and claim mentioned in is an open language, therefore should be construed to " include but do not limit
In ", " substantially " refers within the acceptable error range, those skilled in the art can within a certain error range solve described in
Technical problem basically reaches the technical effect, and specification subsequent descriptions are to implement better embodiment of the invention, so described
Description is the range being not intended to limit the invention for the purpose of illustrating rule of the invention, protection scope of the present invention
As defined by the appended claims.
Below in conjunction with invention is further described in detail shown in attached drawing 1-9, but it is not as a limitation of the invention.
The present invention be a kind of planetary differential variable speed twin-screw reduction gearbox, reduction gearbox by its deceleration part respectively with
Main motor 1, auxiliary-motor 5 connect, and main motor 1 is connect by safety coupling 2 with reduction gearbox, and auxiliary-motor 5 passes through freewheel clutch 4
It is connect with reduction gearbox, main motor 1 is alternating current generator, and auxiliary-motor 5 is variable-frequency motor, the revolving speed Frequency Adjustable speed change of auxiliary-motor 5, main electricity
The power of machine 1 selects the 80% of maximum installed power, and auxiliary-motor 5 selects maximum installed power 20%, starts main electricity during normal production
Machine 1, the 80% of 1 power application maximum installed power of main motor, can be energy saving, main motor 1 and auxiliary-motor 5 one when speedup to produce
Starting is played, the deceleration part of reduction gearbox is differential speed variator 3, and the differential speed variator 3 is planetary differential stepless transmission, including
Sun gear 31, interior outer gear ring 32, planetary gear 33, planet carrier 34, the main motor 1 pass through 6 level-one of Z1/Z2 fixed axis gear transmission group
Slow down and power be passed to the sun gear 31 of differential speed variator 3, the auxiliary-motor 5 pass sequentially through Z3/Z4 fixed axis gear transmission group 7,
Z5/Z6 fixed axis gear transmission group 8,9 three-level of Z7/Z8 fixed axis gear transmission group, which are slowed down, is passed to power the interior external tooth of differential speed variator
The power that circle 32, main motor 1 and auxiliary-motor 5 transmit is collaborated in planetary gear 33, formation differential gear train structure, behind interflow, function
Rate stream is flowed out by planet carrier 34.
Three kinds of driving forms may be implemented in differential gear train structure of the invention:
1) main motor 1 starts, and auxiliary-motor 5 is braked, fixed speed ratio driving form, exports revolving speed, normal production use；
2) auxiliary-motor 5 starts, and main motor 1 is braked, fixed speed ratio driving form, exports revolving speed, mainly jiggering use；
3) main motor 1, auxiliary-motor 5 start simultaneously, gear form；
By three of the above driving form, two kinds of fixed speed ratio transmissions and a kind of gear may be implemented, pass through electrical control
The variation of 5 input speed n2 of auxiliary-motor is realized in a certain rangeTo (+) variable speed.
For the differential speed variator 3 that two motor inputs, a planet carriers 34 export, during the work time if auxiliary-motor
5 power loss, or due to the screw rod fracture or damage of two output shafts, since the moment of resistance of output shaft is big, the moment of resistance of auxiliary-motor 5 becomes
In zero, under the driving of main motor 1, planet carrier 34 is motionless, and the axis of auxiliary-motor 5 is rotated with regard to speedup, becomes driving, for differential
Train, driving speed are M2's, revolving speed high in this way may cause equipment damage or other accident,
Therefore prevention structure is had in auxiliary-motor 5, the dedicated energy consuming brake that electrical prevention equipment control accident occurs can be used,
Mechanical prevention can be used, freewheel clutch 4 is installed in motor side, surmounts when being more than rated speed.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art within the technical scope of the present disclosure, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (3)
1. the twin-screw reduction gearbox of planetary differential variable speed, it is characterised in that: the deceleration part of reduction gearbox is differential speed variator,
The differential speed variator is connect by Z1/Z2 fixed axis gear transmission group with main motor, and the differential speed variator passes sequentially through Z7/Z8
Fixed axis gear transmission group, Z5/Z6 fixed axis gear transmission group, Z3/Z4 fixed axis gear transmission group are connect with auxiliary-motor.
2. the twin-screw reduction gearbox of planetary differential variable speed as described in claim 1, it is characterised in that: the differential speed change
Device is planetary differential stepless transmission, including solar energy, interior outer gear ring, planetary gear, planet carrier, the main motor pass through Z1/Z2
Power is passed to the sun gear of differential speed variator by fixed axis gear transmission group primary speed-down, and it is fixed that the auxiliary-motor passes sequentially through Z3/Z4
Shaft gear transmission group, Z5/Z6 fixed axis gear transmission group, Z7/Z8 fixed axis gear transmission group three-level, which are slowed down, is passed to differential change for power
The interior outer gear ring of fast device.
3. the twin-screw reduction gearbox of planetary differential variable speed as described in claim 1, it is characterised in that: the main motor is
Alternating current generator, the auxiliary-motor are variable-frequency motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811519031.2A CN109595308A (en) | 2018-12-12 | 2018-12-12 | The twin-screw reduction gearbox of planetary differential variable speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811519031.2A CN109595308A (en) | 2018-12-12 | 2018-12-12 | The twin-screw reduction gearbox of planetary differential variable speed |
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| Publication Number | Publication Date |
|---|---|
| CN109595308A true CN109595308A (en) | 2019-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811519031.2A Pending CN109595308A (en) | 2018-12-12 | 2018-12-12 | The twin-screw reduction gearbox of planetary differential variable speed |
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| Country | Link |
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| CN (1) | CN109595308A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010008372A1 (en) * | 2000-01-14 | 2001-07-19 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Extruder driving apparatus |
| CN101265961A (en) * | 2008-04-16 | 2008-09-17 | 大连橡胶塑料机械股份有限公司 | Large-sized squeezing granulation units main reducing gear infinite speed-changing device |
| CN104595465A (en) * | 2013-10-31 | 2015-05-06 | 廉廉机电科技发展(上海)有限公司 | Planetary reduction stepless variable speed coupling box of new energy automobile |
| CN209557597U (en) * | 2018-12-12 | 2019-10-29 | 大连橡胶塑料机械有限公司 | The twin-screw reduction gearbox of planetary differential variable speed |
-
2018
- 2018-12-12 CN CN201811519031.2A patent/CN109595308A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010008372A1 (en) * | 2000-01-14 | 2001-07-19 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Extruder driving apparatus |
| CN101265961A (en) * | 2008-04-16 | 2008-09-17 | 大连橡胶塑料机械股份有限公司 | Large-sized squeezing granulation units main reducing gear infinite speed-changing device |
| CN104595465A (en) * | 2013-10-31 | 2015-05-06 | 廉廉机电科技发展(上海)有限公司 | Planetary reduction stepless variable speed coupling box of new energy automobile |
| CN209557597U (en) * | 2018-12-12 | 2019-10-29 | 大连橡胶塑料机械有限公司 | The twin-screw reduction gearbox of planetary differential variable speed |
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