CN1788979B - Drive unit for twin screw extruder - Google Patents
Drive unit for twin screw extruder Download PDFInfo
- Publication number
- CN1788979B CN1788979B CN2005101086937A CN200510108693A CN1788979B CN 1788979 B CN1788979 B CN 1788979B CN 2005101086937 A CN2005101086937 A CN 2005101086937A CN 200510108693 A CN200510108693 A CN 200510108693A CN 1788979 B CN1788979 B CN 1788979B
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- CN
- China
- Prior art keywords
- drive unit
- shaft
- gear
- output shaft
- planetary reduction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/065—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with a plurality of driving or driven shafts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/252—Drive or actuation means; Transmission means; Screw supporting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/405—Intermeshing co-rotating screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Retarders (AREA)
- Gear Transmission (AREA)
Abstract
The invention relates to a driving device used for a twin screw extruder. The driving device comprises at least a driving input used for motors (16, 30), at least a speed reducer stage, a first output shaft (60) used for driving the first screw shaft (2) of the twin screw extruder and at least two branching shafts (62, 64) used for branching the power from the first output shaft (60) to the second output shaft (84) and driving a second screw shaft (4), wherein the rotational element of the driving device is supported inside a sliding bearing (101).
Description
Technical field
The present invention relates to a kind of drive unit that is used for double screw extruder.
Background technology
The extruder that is used for extrusion plastic or other material is extruded the very high driving power of arbor needs for it.Described extrude arbor usually and its shape irrespectively be called screw shaft.These screw shafts can turn to or opposite turn to rotation with identical according to embodiment.Known decelerator for double screw extruder uses so-called power division decelerator, and driving power is dispensed on a plurality of branched powers in this power division decelerator, makes single decelerator element not too large thus.The axle of this drive unit is bearing on the rolling bearing.By the known a kind of such decelerator that is used for double screw extruder of DE 197 36 549 C2, it has a power division decelerator.
Rolling bearing has a limited service life and lost efficacy in advance before the service life of calculating sometimes.Planless shutdown causes tangible economic loss for bigger equipment.
Summary of the invention
The objective of the invention is, realize a kind of drive unit with double screw extruder of bigger operational reliability.
This purpose is achieved by a kind of drive unit that is used for double screw extruder, described drive unit has at least one driving that is used for motor input and at least one decelerator level and one first output shaft and at least two branched shaft, wherein said first output shaft is used to drive first screw shaft of double screw extruder, described at least two branched shaft are used to make power to be branched off into one second output shaft from first output shaft and are used to drive one second screw shaft, it is characterized in that the spinner member of described drive unit is bearing in the sliding bearing the inside.
Provide a bearing that does not have wearing and tearing in an advantageous manner by sliding bearing with unlimited service life according to reducer shaft of the present invention.
Axle according to sliding bearing of the present invention can restrictedly not moved by the rotating speed boundary advantageously with bigger size yet.
In order to start the supporting that can particularly advantageously be provided with a static pressure under load or during the slow-speed of revolution.
Description of drawings
As example the present invention is described by means of a preferred embodiment in the accompanying drawing below.Accompanying drawing illustrates with different engineer's scales:
Fig. 1 letter illustrates one according to drive unit of the present invention, and it has an electronic main motor and an electronic servo-motor,
Fig. 2 illustrates output shaft and second output shaft in parallel of a planetary reduction gear with showing thoroughly,
Fig. 3 is the side view of the decelerator parts of Fig. 2, the force direction arrow that adds shown in the figure,
Fig. 4 illustrates the decelerator end view of looking from the screw axial decelerator direction of extruder,
Fig. 5 illustrates a sectional view according to the axle of sliding bearing of the present invention.
The specific embodiment
The extruder drive unit that illustrates to example in the accompanying drawings is used to drive a double screw extruder, and two screw shafts that are arranged in parallel 2 and 4 wherein only are shown, they two drive with identical direction of rotation 6.This extruder drive unit comprises a planetary reduction gear apparatus 8 and a power division decelerator 10 that is placed on it.Described planetary reduction gear apparatus 8 comprises best two planetary reduction gear levels 12 and 14 that axial front and back are provided with.The electronic main motor 16 preferably cylinder gear speed reducer by a torque security clutch 18, a single-stage is connected with 20 with two gears 19 and an engagement sleeve 21 meets drivingly with the sun gear 22 of the first planetary reduction gear level 12 with this order and is connected.Can and be furnished with mark 16 ' shown in Fig. 1 dotted line according to the described motor 16 of the embodiment of a variation, be provided with coaxially with sun gear 22 and need not single cylindrical gear reducer 19,20 ground and meet drivingly with this sun gear and be connected.Described sun gear 22 can be by 24 brakings of brake, and this brake is arranged on the free outer end of an axle 25 of second gear 25.Described motor 16 ' also can be connected with sun gear 22 by another planetary reduction gear level selectively.
An electronic servo-motor 30 also can infinitely regulated aspect its output speed and have a littler power capacity like main motor 16 thus at its power, this servo-motor can be by a torque security clutch 32 and a single-stage cylinder gear speed reducer and gear 34,35 and 36, with one of the first planetary reduction gear level 12 rotatably the external tooth 38 of the hollow wheel gear 40 of setting meet drivingly and be connected.
Described servo-motor 30 also can be classified to regulate or not have the ground of adjusting and constitute.
One of the described first planetary reduction gear level 12 planet stent 42 planetary gear bearing 43 that rotatably is provided with, its on the one hand with an external tooth engagement of sun gear 22 on the other hand with an internal tooth 44 engagements of hollow wheel gear 40.
The planet stent 42 of the described first planetary reduction gear level 12 is connected with a sun gear 50 that is axially disposed within the second planetary reduction gear level 14 on its next door by an engagement sleeve 46.This second planetary reduction gear level 14 has hollow wheel gear 52 and planet stent 54 that rotatably is provided with of a non-rotatable setting, its planetary gear bearing 56, their on the one hand with an external tooth engagement of sun gear 50 on the other hand with an internal tooth engagement of hollow wheel gear 52.
The hollow wheel gear 40 of the described first planetary reduction gear level 12 is by a brake 33 or a backstop braking, it is arranged in drive line between itself and the servo-motor 30, is preferably disposed on the free outer end of an axle 37 of first gear 34 that is driven by servo-motor 30.
Planetary reduction gear output shaft 60 and two planetary reduction gear levels 12 and 14 sun gear and planet stent are provided with coaxially with a screw shaft 2 coaxially and also.This planetary reduction gear output shaft 60 can multi-piece type ground or is preferably integrally constituted and can not reverse ground by a clutch 62 and axial restraint ground is connected with a screw shaft 2 at its drive end.
Described planetary reduction gear output shaft 60 also can directly drive by the first planetary reduction gear level 12.Therefore 8 of this planetary reduction gear apparatuses are made of a planetary reduction gear level.
Described power division decelerator 10 comprises the branched shaft 62 and 64 that two (or a plurality of) and planetary reduction gear output shaft 60 be arranged in parallel, its end segments near planetary reduction gear apparatus 8 can not be connected with a gear 63 or 65 respectively with reversing, these gears have identical diameter and be furnished with the identical number of teeth oblique engaging tooth 66 and 67 and with corresponding oblique engaging tooth 68 engagement of a central gear 70, this central gear can not be arranged on the planetary reduction gear output shaft 60 with reversing.Described central gear 70 and gear 63 and 65 constitute one from planetary reduction gear output shaft 60 to branched shaft 62 and 64 branched power.
With planetary reduction gear apparatus 8 more away from branched shaft 62 can not be connected with a gear 73 and 75 respectively with 64 end segments with reversing, they have the oblique engagement outer tooth ring 76 and 77 of the identical diameter and the best identical number of teeth respectively.These gears 73 and 75 and gear 80 engagements, it has a corresponding tiltedly engagement external tooth 78 and can not be connected with one second output shaft 84 with reversing.Described gear 73,75 and 80 constitutes one and amounts to from two branched shaft 62 and 64 power to second output shaft 84 of extruder drive unit on the far-end of branched shaft 62 and 64.This second output shaft 84 be parallel to planetary reduction gear output shaft 60 and axially be provided with second screw shaft 4 with staggering and its with the second planetary reduction gear level 14 away from the end on can not reverse with second screw shaft 4 and axial restraint ground is connected by a clutch 86.
In order in Fig. 1, to find out two branched shaft 62 and 64 and its gear, they illustrate in a public plane with opening, and in fact they be not positioned at a public the inside, plane with planetary reduction gear output shaft 60, make thus two gears 73 and 75 on the far-end of branched shaft 62 and 64 with 80 engagements of public gear, as in Fig. 1 by shown in the arrow 82 and in Fig. 2 the corresponding actual conditions that correctly illustrate.
Therefore described screw shaft 2 and 4 direction of rotation 6 are also corresponding to the direction of rotation 6 of two output shafts 60 and 84.
The axial thrust of a screw shaft 2 is delivered on the axial thrust bearing 88 and from this bearing by planetary reduction gear output shaft 60 and is delivered to a decelerator case member 90.Described axial thrust bearing 88 is positioned at branched power 63,65, between 79 the driving gear 70 and the planet stent 54 of the second planetary reduction gear level 14.
The axial thrust of described second screw shaft 4 is delivered on one second axial thrust bearing 92 and from this bearing by second output shaft 84 and is delivered to equally on the decelerator shell 94.This second axial thrust bearing 92 is positioned at the gear 63,65,70 of branched power and the gear 73,75 of the power total of branched shaft 62 and 64, an intermediate space the inside between 80 at axle 60,62 and 64 next doors.Described axial thrust bearing 88 and 92 place acquire a special sense, if consider, in such decelerator, to transmit the torque of power and the 700000Nm of 15000kW, two output shafts 60 and 84 intermediate distance only allow for 300mm, be corresponding to the same little intermediate distance of screw shaft 2 and 4.
Select the oblique engaging tooth of power division decelerator 10 thus like this, although make because axial force F 63 and F65 that the oblique engaging tooth of passive gear 63 and 65 acts on the driving gear 70 of its branched power point to this axial thrust bearing 88 as the axial thrust of same screw shaft 2 on same direction, yet because the axial force that the oblique engaging tooth of gear 73 initiatively and 75 acts on axial force F 73 on the gear 78 that the power by its driving amounts to and F75 points to and partly compensate thus this another screw shaft 4 in contrast to the axial thrust direction of another screw shaft 4, therefore a more small responsive to axial force that is produced is on another relevant therewith axial thrust bearing 92 of second output shaft 84, and this axial force is less than the active force that acts on by planetary reduction gear output shaft 60 on its attached axial thrust bearing 88.Consider that thus an axial thrust bearing 88 that is compared to a planetary reduction gear output shaft 60 for the axial thrust bearing 92 of second output shaft 84 has littler space for using.Axial force in branched shaft 62 and 64 inner its gears 63 and 73 or 65 and 75 is pointed to opposite to each other, so they are cancelled out each other and do not produce caused axial force in these branched shaft 62 and 64.At gear 63,65, the force of periphery that produces in 73 and 75 is respectively with 96 expressions in Fig. 3.The inclination trend of these gears 63,65,73 and 75 oblique engaging tooth represents that by a dotted line that tilts therein it is to represent with oblique engaging tooth 66,67,68,76,77 Reference numerals identical with 78 of subordinate respectively.
The only simple axial thrust bearing 88 that planetary reduction gear output shaft 60 is shown in Fig. 3.Notice in addition, in Fig. 3, just with the plane identical the branched shaft 62 and 64 and second output shaft 84 are shown, but are provided with corresponding to Fig. 2 around its circumference actually with distributing with planetary reduction gear output shaft 60 in order to understand force characteristics better.
Certainly replace oblique engaging tooth also can adopt straight engaging tooth.
Shown in the arrow among Fig. 16, two planetary reduction gear levels 12 and 14 sun gear 22 with 50 with the direction of rotation rotation identical with screw shaft 2 and 4.
Preferred torque security clutch 18 that adopts and 32 structure have advantage on the position shown in Fig. 1, promptly, being used to handle required pressure air can be transported to these clutches from the end that freely enters of axle 17 or 37, and these axles are connected with motor 16 or 30 by overload-release clutch 18 or 32.
One in Fig. 1 the electronic regulating unit 100 shown in the letter regulate according to the method for operation of required screw shaft 2 and 4 and control power and also regulate and control the rotating speed of adjustable servo-motor 30 thus and be used for disconnecting and connecting main motor 16 and brake 24 and 33.
Another enforcement of the present invention in addition can be, but not limited to by this: described main motor 16 or 16 ' can be one with regard to its power output and the adjustable motor of rotating speed, preferably motor.Described in this case screw shaft 2 and 4 rotating speed can by main motor 16 or 16 ' infinitely or have level ground regulate and be adjusted to thus one zero with one corresponding to any number between the peak of main motor maximum speed, for example described from zero to 150U/min or in the scope of 50U/min to 150U/min.If the described servo-motor 30 of the embodiment of Bian Huaing is not conditioned or a uncontrollable motor hereto, then by connecting two motors, the maximum speed of exporting as example can reach 200U/min equally.
The simple embodiment of the described exemplary drive unit that illustrates is made up of a planetary reduction gear level, it has one and is used for a motor 16,30 driving input and one are used for first screw shaft 2 and at least two branched shaft 62,64 first output shaft 60, the power of branched shaft are by first output shaft, 60 branches and be added to one second output shaft 84 and be used to drive second screw shaft.
Core of the present invention is that the element transmitting torque of a double screw extruder drive unit, that itself rotate in other words is bearing in the sliding bearing the inside.
The sliding bearing of described branched shaft 62 at gear 73 places exemplarily is shown in Fig. 5.Be provided with sliding bearing 101 in gear 73 both sides.For static pressure ground supports the pressure generator 102 that sliding bearing 101 can adopt a hydraulic pressure, it is responsible for providing lubricant by oil pipe 103 for sliding bearing 101.Particularly advantageous is the rising of connecting static pressure during with low cruise when having or not having load ground to start extruder and at extruder, and the hydrodynamiclubrication of sliding bearing 101 can not cause simple fluid friction there.
Be enough to the just sliding bearing of static pressure ground supporting low cruise according to structure and relevant therewith rotating speed.This is preferably at the sliding bearing of exporting the position, as on output shaft and/or branched shaft.
In sliding bearing 101, support planet stent 42,54, planetary gear 43,56, rotatable hollow wheel gear 40, output shaft 60,84 and branched shaft 62,64 according to the present invention as the element of transmitting torque.
Described sun gear 22,50 best floating grounds are bearing between the planetary gear 43,56.If do not have planetary gear for an embodiment, then sliding bearing 101 also be set for sun gear 22,50.
If motor 16,30 embeds planetary reduction gear apparatus 8 by cylinder gear speed reducer or other planetary reduction gear, also its reducer shaft of sliding bearing then.Particularly advantageous is also to support the motor drive shaft 16,30 of CD-ROM drive motor in sliding bearing.
For on other or driving element, bear axial force can be provided with axial plain bearing or combination axially-radially-sliding bearing.
In another embodiment, described planetary reduction gear apparatus 8 is replaced by a cylinder gear speed reducer, and its axle is bearing in the sliding bearing the inside corresponding to above-mentioned example.Can be provided with one or more speedup levels or retarding stage and be provided with the supporting of static pressure as required.In order to realize that different driving rotating speeds can be provided with a cylinder gear speed reducer of connecting or the adjustable CD-ROM drive motor of rotating speed in different speedup levels or retarding stage.
Described output is branched off into one second driving shaft as the foregoing description by a power division decelerator.
Claims (8)
1. drive unit that is used for double screw extruder, it has at least one and is used for a motor (16,30) driving input and at least one decelerator level and one first output shaft (60) and at least two branched shaft (62,64), wherein said first output shaft (60) is used to drive first screw shaft (2) of double screw extruder, described at least two branched shaft (62,64) be used to make power to be branched off into one second output shaft (84) and be used to drive one second screw shaft (4) from first output shaft (60), it is characterized in that the spinner member of described drive unit is bearing in sliding bearing (101) the inside.
2. drive unit as claimed in claim 1 is characterized in that, described decelerator level is made of the planetary reduction gear with at least one planetary stage.
3. drive unit as claimed in claim 2 is characterized in that, is provided with another at least one planetary reduction gear level (12,14) and drives input, and coupling joins another motor (16,30) in described another driving input.
4. drive unit as claimed in claim 3 is characterized in that, described another motor (16,30) is being adjustable aspect its power and/or the rotating speed.
5. drive unit as claimed in claim 1 is characterized in that, described decelerator level is made of cylinder gear speed reducer.
6. drive unit as claimed in claim 5 is characterized in that, described cylinder gear speed reducer can be connected different speedup levels and/or retarding stage the inside.
7. as each described drive unit in the claim 1 to 6, it is characterized in that, between at least one motor (16,30) and a driving input, a face gear retarding stage and/or a planetary reduction gear level are set.
8. as each described drive unit in the claim 1 to 6, it is characterized in that the sliding bearing (101) of described axle is by the supporting of static pressure mechanism.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004051306A DE102004051306B4 (en) | 2004-10-20 | 2004-10-20 | Drive device for twin-screw extruder |
| DE102004051306.6 | 2004-10-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1788979A CN1788979A (en) | 2006-06-21 |
| CN1788979B true CN1788979B (en) | 2010-11-10 |
Family
ID=36128894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005101086937A Active CN1788979B (en) | 2004-10-20 | 2005-10-20 | Drive unit for twin screw extruder |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2006116959A (en) |
| CN (1) | CN1788979B (en) |
| DE (1) | DE102004051306B4 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4293564B2 (en) * | 2006-06-29 | 2009-07-08 | 株式会社日本製鋼所 | Drive device for twin screw extruder and drive method thereof |
| JP4355354B2 (en) * | 2008-03-18 | 2009-10-28 | 株式会社神戸製鋼所 | Twin-screw kneading extruder |
| JP4944925B2 (en) * | 2009-06-02 | 2012-06-06 | 株式会社神戸製鋼所 | Twin-screw kneading extruder |
| DE102010027564A1 (en) | 2010-07-19 | 2012-01-19 | Isar Getriebetechnik Kg | Ultra-high speed drive and gear box combination for small or micro motor, has gear box whose design, material and manufacturing method are adapted for reduction of rotation speed of motor in region of less power ratings |
| DE102010062221A1 (en) | 2010-11-30 | 2012-05-31 | Renk Ag | Gear assembly has drive, output and two identical parallel functional drive strands, which have strand input and strand output |
| EP2842716B1 (en) * | 2013-08-29 | 2016-07-13 | Coperion GmbH | Worm machine and method for the treatment of plastic melts |
| CN103660234B (en) * | 2013-12-30 | 2017-03-15 | 广东联塑机器制造有限公司 | A kind of single screw extrusion machine |
| DE102015004051B4 (en) | 2015-03-27 | 2022-09-08 | Renk Gmbh | Gear arrangement of a drive for a twin-screw extruder |
| DE102015016065A1 (en) * | 2015-12-09 | 2017-06-14 | Renk Aktiengesellschaft | Drive device for a twin-screw extruder |
| JP7034422B2 (en) * | 2018-02-13 | 2022-03-14 | 株式会社日本製鋼所 | Two-screw extruder, reducer and extrusion method |
| CN112112934B (en) * | 2020-11-23 | 2023-03-24 | 常州长浪齿轮箱有限公司 | High-load-sharing double-screw extruder gear box and method for adjusting phase of matched gears |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2082230U (en) * | 1990-07-16 | 1991-08-07 | 浙江省瑞安市华光机械电器厂 | Transmission mechanism of dual colour plastic extruder |
| CN2216458Y (en) * | 1993-09-24 | 1996-01-03 | 方祖彭 | Driving apparatus for double screw arbor extruder |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH557974A (en) * | 1972-11-13 | 1975-01-15 | Sig Schweiz Industrieges | Redn gear for double screw extruder - having design ensuring long life through uniform loading of screw shafts |
| DE19736549C2 (en) * | 1997-08-22 | 2003-05-08 | Renk Ag | Extruder drive device for twin screw extruders |
| DE19754359A1 (en) * | 1997-12-08 | 1999-06-17 | Thyssen Henschel Gmbh | Gear, especially for twin screw extruders |
| DE19828471A1 (en) * | 1998-06-26 | 2000-01-05 | Thyssen Henschel Gmbh | Drive train, especially for twin screw extruders |
| JP3706288B2 (en) * | 2000-01-14 | 2005-10-12 | 株式会社神戸製鋼所 | Extruder drive |
| JP4237374B2 (en) * | 2000-03-14 | 2009-03-11 | 住友ゴム工業株式会社 | Cone type twin screw extruder |
-
2004
- 2004-10-20 DE DE102004051306A patent/DE102004051306B4/en not_active Revoked
-
2005
- 2005-10-13 JP JP2005299147A patent/JP2006116959A/en active Pending
- 2005-10-20 CN CN2005101086937A patent/CN1788979B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2082230U (en) * | 1990-07-16 | 1991-08-07 | 浙江省瑞安市华光机械电器厂 | Transmission mechanism of dual colour plastic extruder |
| CN2216458Y (en) * | 1993-09-24 | 1996-01-03 | 方祖彭 | Driving apparatus for double screw arbor extruder |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006116959A (en) | 2006-05-11 |
| CN1788979A (en) | 2006-06-21 |
| DE102004051306B4 (en) | 2009-10-01 |
| DE102004051306A1 (en) | 2006-04-27 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Address after: Augsburg, Germany Patentee after: Lunk Co.,Ltd. Address before: Augsburg, Germany Patentee before: RENK AG |