CN106641117A - Variable-speed ratio reduction gearbox for double-screw extruder - Google Patents
Variable-speed ratio reduction gearbox for double-screw extruder Download PDFInfo
- Publication number
- CN106641117A CN106641117A CN201710057045.6A CN201710057045A CN106641117A CN 106641117 A CN106641117 A CN 106641117A CN 201710057045 A CN201710057045 A CN 201710057045A CN 106641117 A CN106641117 A CN 106641117A
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- CN
- China
- Prior art keywords
- gear
- axle sleeve
- shaft
- output shaft
- axle
- 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
-
- 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
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention relates to a variable-speed ratio reduction gearbox for a double-screw extruder. The variable-speed ratio reduction gearbox comprises a housing composed of a box body and a box cover, and also drive shafts mounted in the box body as well as a drive mechanism for driving between the drive shafts. The drive shafts include an input shaft and two output shafts for side-by-side output. The drive mechanism comprises a variable-speed gear drive mechanism for changing a speed ratio between the two output shafts. According to the invention, the drive gear set of the variable-speed ratio reduction gearbox is selected by moving the turning lever to change a drive ratio between the input shaft and one output shaft or that between the two output shafts, thereby changing the speed ratio between the two output shafts of the reduction gearbox; thus, the variable-speed ratio reduction gearbox for a double-screw extruder is formed.
Description
Technical field
The present invention relates to a kind of reduction box, more particularly to the double screw extruder reduction box of variable gear ratio.
Background technology
The effect of extruder screw is plastics to be kneaded, is compacted, being conveyed, the differential speed double-screw for being invented in the recent period
Various aspects of performance is all good than synchronized twin-screw.But traditional single output shaft reduction box can not be supported the use with it.In order that poor
The invention of fast twin-screw can put into production use, and need a kind of reduction box of the output shaft that can provide two different rotating speeds.
The content of the invention
Reductor or reduction box play the work of matching rotating speed and transmission torque between prime mover and working machine or executing agency
It is a kind of relatively accurate machinery with, reductor or reduction box, the use of its purpose is to reduce rotating speed, increases torque.
The goal of the invention of the present invention is to provide a kind of double output shaft reduction box of variable gear ratio.
Foregoing invention purpose is realized, the present invention is adopted the technical scheme that：A kind of double screw extruder of variable gear ratio subtracts
Fast case, including the shell being made up of casing and case lid, also includes the power transmission shaft being arranged in the casing, and for the biography
The transmission mechanism being driven between moving axis, the power transmission shaft includes an input shaft and two output shafts for exporting side by side, and its feature exists
In the transmission mechanism includes the derailleur for changing fast ratio between two output shaft, the gear teeth
Wheel drive mechanism is made up of four gears, axle sleeve and driving levers, and four gears engage to form different two couple of gearratio two-by-two,
It is divided on two power transmission shafts be arrangeding in parallel, transmits for moment of torsion between this two power transmission shafts, the axle sleeve is sleeved on
On power transmission shaft described in two of which between gear, and can be along this propeller shaft slip, positioned at the gear at the axle sleeve two ends
It is rotatably installed on its power transmission shaft, i.e. their rotation does not drive its drive axis, the driving lever to be rotatably installed in described
On axle sleeve, the case lid is provided with a strip groove, and the driving lever end is stretched out from the strip groove, and can be along the strip
Groove is moved, and when the arbitrary described gear for stirring the axle sleeve and its two ends by the driving lever is drawn close, two gears drawn close pass through
Attachment structure connection so that the gear at axle sleeve two ends can be connected together by the axle sleeve and their power transmission shafts for being located and
Synchronous axial system.
The present invention selects the driving gear set of derailleur by stirring the driving lever, changes gearratio, from
And change the speed ratio of double output shaft.
The concrete mode that the driving lever is rotatably installed on the axle sleeve is：The axle sleeve outer wall forms the cunning of an annular
Groove, the driving lever lower end is arranged in the chute by slide block.
The driving lever is rotatably installed in can also be in the following way on the axle sleeve：The axle sleeve has inside and outside two-layer,
Outer layer is rotated and is sleeved on internal layer, and the driving lever is connected with the outer layer of the axle sleeve.
The driving lever lower end is U-shaped to form two end pin, across in the both sides of the axle sleeve, respectively by the slide block with
The axle sleeve is connected, the central shaft of the excessively described axle sleeve of line of two its centers.
A pole is horizontally through on the driving lever, the pole is vertical with the drive shaft axis, the both sides of the casing
Two bar-shaped troughs are transversely provided with wall, the pole two ends are stretched into bar-shaped trough described in two, and can be moved along the bar-shaped trough.
Two power transmission shafts being driven by the derailleur, can be input shaft and wherein one output shaft,
Or for two output shafts.
In the derailleur four two-by-two meshed gears be two pairs of under drive gears, i.e., as actively
External diameter of the outside diameter of gear of wheel less than the gear as driven pulley.
As the preferred embodiment of the present invention：
Two power transmission shafts being driven by the derailleur are two output shafts, and two output shafts one are
Constant speed output shaft, another be speed change output shaft, the power transmission shaft also include between two output shafts be driven speed governing axle, two
By many primary transmissions of speed governing axle between output shaft, be conducive to further slowing down speed change output shaft, and make two outputs
Axle steer is identical.
Four drive shaft axis be generally aligned in the same plane it is interior and parallel to each other, wherein, the input shaft, constant speed output
Axle, speed governing axle are arranged in order, and the speed change output shaft is a short axle, with the front portion of the constant speed output shaft side by side, is arranged on institute
State between constant speed output shaft and speed governing axle, the derailleur is connected between the constant speed output shaft and speed governing axle.
Compared to prior art, the present invention has the advantages that：
The present invention selects the driving gear set of derailleur, so as to change input by stirring the driving lever
Gearratio between axle and wherein an output shaft or two output shafts, so as to change the speed ratio between reduction box double output shaft, is constituted
A kind of double screw extruder reduction box of variable gear ratio.
Description of the drawings
Fig. 1 is the explosive view of present pre-ferred embodiments；
Fig. 2 is the top view of present pre-ferred embodiments；
Fig. 3 is the matching chart of axle sleeve of the present invention and the gear at its two ends；
Description of reference numerals：Shell 1.1；Shaft bearing plate I 1.2；Shaft bearing plate II 1.3；Input shaft 1.4；Constant speed output shaft
1.5；Speed governing axle 1.6；Speed change output shaft 1.7；Gear I 1.8；Gear II 1.9；Governor gear I 1.10；Governor gear II
1.11；Axle sleeve 1.12；Driving lever 1.13；Gear 1.14 on input shaft；Little gear 1.15；Gear wheel 1.16；Speed change is exported
Gear 1.17 on axle, pole 1.18.
Specific embodiment
As shown in Figure 1, 2, the double screw extruder reduction box of the variable gear ratio of the present embodiment, including by casing, case lid structure
Into shell 1.1, four power transmission shafts and for be driven between centers transmission gear drive.
Casing is integrally square, and shaft bearing plate II1.3 and bearing are fixed with successively parallel to its front and rear end in inner bottom surface
Plate I1.2, is mainly used in the installation of power transmission shaft upper bearing (metal).
The power transmission shaft of the present embodiment is each perpendicular to the front and rear end of casing 1.1 and installs, and axis is generally aligned in the same plane interior, bag
Input shaft 1.4, constant speed output shaft 1.5, speed governing axle 1.6, speed change output shaft 1.7 are included.Input shaft 1.4, constant speed output shaft 1.5,
Speed governing axle 1.6 is from left to right arranged in order, and speed change output shaft 1.7 is a short axle, with the front portion of constant speed output shaft 1.5 side by side, if
Put between constant speed output shaft 1.5, speed governing axle 1.6.
Input shaft 1.4 is separately fixed at the rear end face of casing 1.1 by two and shaft bearing plate I1.2 upper bearing (metal)s are rotatably installed in
In casing 1.1, and its rear end is stretched out from the rear end face of casing 1.1.Gear 1.14 is set with input shaft 1.4.
Constant speed output shaft 1.5 is rotatably installed in casing 1.1 by three bearings, and three bearings are separately fixed at shaft bearing plate
The front and rear end of I1.2 and casing 1.1, and the front end face of casing 1.1 is stretched out in its front end.Gear I1.8 is exported by flat key with constant speed
Axle 1.5 connects, and gear I1.8 is engaged with the gear 1.14 on input shaft 1.4, realizes input shaft 1.4 and constant speed output shaft 1.5
Between transmission.Gear I1.8 external diameters are significantly greater than gear 1.14, form a pair of under drive gears.
Speed governing axle 1.6 is rotatably installed in casing 1.1 by two bearings for being separately fixed at the front and rear end of casing 1.1.
It is driven by derailleur between constant speed output shaft 1.5 and speed governing axle 1.6, derailleur
For changing the speed ratio between two output shafts.
Derailleur is by little gear 1.15, gear wheel 1.16, governor gear I1.10 and governor gear II1.11
This four gears and axle sleeve 1.12 and driving lever 1.13 are constituted.
Little gear 1.15, gear wheel 1.16 are connected respectively by flat key with constant speed output shaft 1.5, governor gear I1.10 and
Governor gear II1.11 is rotated and is sleeved on speed governing axle 1.6, no with speed governing axle 1.6 bonded, and they are defeated with constant speed respectively
1.14 two gear engagements of gear wheel 1.16 and little gear on shaft 1.5, constitute two pairs of deceleration transmission teeth, can from figure
It is gear wheel 1.16 to the gear as driving wheel and the external diameter of little gear 1.14 is significantly less than gear i.e. speed governing as driven pulley
The external diameter of gear I1.10 and governor gear II1.11.
Axle sleeve 1.12 is sleeved on speed governing axle 1.6 and connects, and can slide along, in governor gear I1.10 and governor gear
Between II1.11.As shown in figure 3, the outer wall of axle sleeve 1.12 forms the chute of an annular, flat key is passed through between its speed governing axle 1.6
Connection, is that the attachment structure that is engaged is equipped between governor gear I1.10 and governor gear II1.11 with the gear at its two ends.
Specifically, the dentalation of adaptation is provided between the end face relative with governor gear I1.10 and governor gear II1.11 of axle sleeve 1.12, is leaned on
The engagement of dentalation is connecting both.The lower end of driving lever 1.13 is U-shaped to form two end pin, across in the both sides of axle sleeve 1.12,
It is connected with axle sleeve 1.12 by slide block 1.19 respectively, the line at two 1.19 centers of cunning crosses the central shaft of axle sleeve 1.12.Set on case lid
There is a strip groove, the end of driving lever 1.13 is stretched out from the strip groove, and can be along the strip groove movement.By driving lever 1.13
When the arbitrary gear for stirring axle sleeve 1.12 and its two ends is drawn close, two gears drawn close realize connection by the engagement of gear, from
And enable the gear at the two ends of axle sleeve 1.12 to connect together by the axle sleeve 1.12 and their power transmission shaft i.e. speed governing axles 1.6 for being located and
Synchronous axial system.Gear II1.9 is also set with speed governing axle 1.6, gear II1.9 is connected by flat key and speed governing axle 1.6, is speed governing
Near the gear of casing front end face on axle 1.6.
Axle sleeve of the present invention 1.12 can also adopt other embodiment：Axle sleeve 1.12 has inside and outside two-layer, outer layer turning set
It is mounted on internal layer, but is fixed relationship on outer layer and internal layer axial direction, flat key is passed through between the internal layer of axle sleeve 1.12 and its speed governing axle 1.6
Connection, the internal layer of axle sleeve 1.12 is to be equipped with phase between governor gear I1.10 and governor gear II1.11 with the gear at its two ends
The attachment structure of cooperation, the such as dentalation of adaptation, and driving lever 1.13 is rotatably installed in axle by being connected with the outer layer of axle sleeve 1.12
On set 1.12.
The axle sleeve can be provided with teeth structure using inner ring two ends, and inner ring inwall is provided with the bearing of flat key or strong groove,
There can be the part of similar structures using other.
Speed change output shaft 1.7 is turned by two bearings being separately fixed on shaft bearing plate II 1.3 and the front end face of casing 1.1
It is dynamic to be arranged in casing 1.1, it is set with thereon and the gear II1.9 meshed gears 1.17 of speed governing axle 1.6.Speed change output shaft
The front end face of casing 1.1 is stretched out in 1.7 front end, with constant speed output shaft 1.5 side by side.
A cylindrical pole 1.18 is horizontally through on driving lever 1.13, pole 1.18 is vertical with drive shaft axis, the two of casing
Two bar-shaped troughs are transversely provided with the wall of side, the two ends of pole 1.18 are stretched into two bar-shaped troughs, and can be moved along the bar-shaped trough, as dial
The fulcrum of the movement of bar 1.13.
The course of action of the present invention is as follows：Input shaft 1.4 is engaged by own gear with gear I1.8, and motor (is not drawn
Go out) rotary motion pass to constant speed output shaft 1.5, the rotating speed of constant speed output shaft 1.5 follows the change of motor speed and changes,
Motor speed is constant, and its rotating speed is also constant.Driving lever 1.13 is dialled forward, and axle sleeve 1.12 is engaged with governor gear I1.10, now speed governing
Have between gear I1.10 and speed governing axle 1.6 and be rigidly connected, both geo-stationaries, by itself gear wheel of constant speed output shaft 1.5
Engage with governor gear I1.10, the rotary motion of constant speed output shaft 1.5 passes to speed governing axle 1.6, then by gear II1.9 with
The own gear of speed change output shaft 1.7 is engaged, and the rotary motion of speed governing axle 1.6 passes to speed change output shaft 1.7.Speed change output shaft
1.7 with the speed ratio of constant speed output shaft 1.5, depending on itself gear wheel of constant speed output shaft 1.5 and the number of teeth of governor gear I1.10
Than, and the gear ratio of gear II1.9 and the own gear of speed change output shaft 1.7.In the same manner, driving lever 1.13 is dialled backward, axle sleeve 1.12 with
Governor gear I1.10 departs from, and then engages with governor gear II1.11, and now, constant speed output shaft 1.5 passes to speed governing axle 1.6
Rotary motion, be that realization is engaged by itself little gear of constant speed output shaft and governor gear II1.11.Speed change output shaft 1.7
With the speed ratio of constant speed output shaft 1.5, depending on the gear ratio of itself little gear of constant speed output shaft 1.5 and governor gear II1.11,
With gear II1.9 and the gear ratio of the own gear of speed change output shaft 1.7.
Claims (9)
1. the double screw extruder reduction box of a kind of variable gear ratio, including the shell being made up of casing and case lid, also including installation
Power transmission shaft in the casing, and for the transmission mechanism of the transmission between centers transmission, the power transmission shaft is defeated including one
Enter axle and two output shafts for exporting side by side, it is characterised in that the transmission mechanism include for change two output shaft it
Between fast ratio derailleur, the derailleur is made up of four gears, axle sleeve and driving levers, described four
Individual gear engages to form different two couple of gearratio two-by-two, is divided on two power transmission shafts be arrangeding in parallel, for this two
Moment of torsion transmission between root power transmission shaft, the axle sleeve is sleeved on the power transmission shaft described in two of which between gear, between be provided with and match somebody with somebody
The torsion transferring structure of conjunction, and can pass installed in it along this propeller shaft slip, the pinion rotation positioned at the axle sleeve two ends
On moving axis, i.e. their rotation does not drive its drive axis, the driving lever to be rotatably installed on the axle sleeve, the case lid
A strip groove is provided with, the driving lever end is stretched out from the strip groove, and can be along the strip groove movement, by described
When driving lever is stirred the arbitrary described gear at the axle sleeve and its two ends and drawn close, two gears drawn close are connected by the attachment structure
Connect, so that the gear at axle sleeve two ends can be connected together and synchronous axial system by the power transmission shaft of the axle sleeve and their places.
2. reduction box according to claim 1, it is characterised in that the driving lever is rotatably installed in concrete on the axle sleeve
Mode is：The axle sleeve outer wall forms the chute of an annular, and the driving lever lower end is arranged in the chute by slide block.
3. reduction box according to claim 2, it is characterised in that the driving lever lower end is U-shaped to form two end pin, across
In the both sides of the axle sleeve, it is connected with the axle sleeve by the slide block respectively, the excessively described axle sleeve of line of two its centers
Central shaft.
4. reduction box according to claim 3 a, it is characterised in that pole, the pole are horizontally through on the driving lever
It is vertical with the drive shaft axis, two bar-shaped troughs are transversely provided with the two side of the casing, two institutes are stretched at the pole two ends
State in bar-shaped trough, and can move along the bar-shaped trough.
5. reduction box according to claim 2, it is characterised in that the driving lever is rotatably installed in concrete on the axle sleeve
Mode is：The axle sleeve has an inside and outside two-layer, and outer layer is rotated and is sleeved on internal layer, the outer layer phase of the driving lever and the axle sleeve
Even.
6. the reduction box according to Claims 1 to 5 any one claim, it is characterised in that by the change-speed gearing
Two power transmission shafts of transmission mechanism transmission, are input shaft and wherein one output shaft, or for two output shafts.
7. reduction box according to claim 6, it is characterised in that four are engaged two-by-two in the derailleur
Gear be two pairs of under drive gears, i.e., as driving wheel the outside diameter of gear less than as driven pulley gear external diameter.
8. reduction box according to claim 7, it is characterised in that two biographies being driven by the derailleur
Moving axis is two output shafts, and two output shafts one are constant speed output shaft, and another is speed change output shaft, and the power transmission shaft is also
Including the speed governing axle for being driven between two output shafts.
9. reduction box according to claim 8, it is characterised in that four drive shaft axis be generally aligned in the same plane it is interior and
It is parallel to each other, wherein, the input shaft, constant speed output shaft, speed governing axle are arranged in order, and the speed change output shaft is a short axle, with
The front portion of the constant speed output shaft side by side, is arranged between the constant speed output shaft and speed governing axle, the variable gearing machine
Structure is connected between the constant speed output shaft and speed governing axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710057045.6A CN106641117A (en) | 2017-01-22 | 2017-01-22 | Variable-speed ratio reduction gearbox for double-screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710057045.6A CN106641117A (en) | 2017-01-22 | 2017-01-22 | Variable-speed ratio reduction gearbox for double-screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106641117A true CN106641117A (en) | 2017-05-10 |
Family
ID=58842255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710057045.6A Withdrawn CN106641117A (en) | 2017-01-22 | 2017-01-22 | Variable-speed ratio reduction gearbox for double-screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106641117A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109569948A (en) * | 2018-12-24 | 2019-04-05 | 中山松德新材料装备有限公司 | A kind of coating head of fast changeable roller |
| CN111577849A (en) * | 2020-05-27 | 2020-08-25 | 广东金兴机械股份有限公司 | Automatic speed change synchronous pulley box |
| CN112026116A (en) * | 2020-09-04 | 2020-12-04 | 宁波海洲机械有限公司 | Dedicated injection structure of PET |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101694236A (en) * | 2008-12-19 | 2010-04-14 | 成都中孚高分子工程有限公司 | High rotation speed gear box for anisotropic parallel twin-screw extruding machine |
| CN201559300U (en) * | 2009-12-15 | 2010-08-25 | 常州长浪齿轮箱有限公司 | High torque gear box for unidirectional parallel double-screw extruder |
| JP2011137496A (en) * | 2009-12-28 | 2011-07-14 | Kobe Steel Ltd | Two-speed switching reduction device |
| CN106696229A (en) * | 2017-01-17 | 2017-05-24 | 广东轻工职业技术学院 | Rotation speed ratio switching trigger device and method for double-screw mechanism |
| CN206503888U (en) * | 2017-01-22 | 2017-09-19 | 广州研华机械技术有限公司 | A kind of double screw extruder reduction box of variable gear ratio |
-
2017
- 2017-01-22 CN CN201710057045.6A patent/CN106641117A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101694236A (en) * | 2008-12-19 | 2010-04-14 | 成都中孚高分子工程有限公司 | High rotation speed gear box for anisotropic parallel twin-screw extruding machine |
| CN201559300U (en) * | 2009-12-15 | 2010-08-25 | 常州长浪齿轮箱有限公司 | High torque gear box for unidirectional parallel double-screw extruder |
| JP2011137496A (en) * | 2009-12-28 | 2011-07-14 | Kobe Steel Ltd | Two-speed switching reduction device |
| CN106696229A (en) * | 2017-01-17 | 2017-05-24 | 广东轻工职业技术学院 | Rotation speed ratio switching trigger device and method for double-screw mechanism |
| CN206503888U (en) * | 2017-01-22 | 2017-09-19 | 广州研华机械技术有限公司 | A kind of double screw extruder reduction box of variable gear ratio |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109569948A (en) * | 2018-12-24 | 2019-04-05 | 中山松德新材料装备有限公司 | A kind of coating head of fast changeable roller |
| CN111577849A (en) * | 2020-05-27 | 2020-08-25 | 广东金兴机械股份有限公司 | Automatic speed change synchronous pulley box |
| CN112026116A (en) * | 2020-09-04 | 2020-12-04 | 宁波海洲机械有限公司 | Dedicated injection structure of PET |
| CN112026116B (en) * | 2020-09-04 | 2022-04-15 | 宁波海洲机械有限公司 | Dedicated injection structure of PET |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170510 |