CN109854722A - A kind of twin-screw extrusion owner sliding tooth roller box - Google Patents
A kind of twin-screw extrusion owner sliding tooth roller box Download PDFInfo
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- CN109854722A CN109854722A CN201910155099.5A CN201910155099A CN109854722A CN 109854722 A CN109854722 A CN 109854722A CN 201910155099 A CN201910155099 A CN 201910155099A CN 109854722 A CN109854722 A CN 109854722A
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Abstract
A kind of twin-screw extrusion owner sliding tooth roller box of the invention, the extruder includes the gear-box and motor of electrical connection, the gear-box first shunts the driving form collaborated again using double helical tooth gear pair, and the gear-box includes the first output shaft, the second output shaft, series connection bearing, input shaft, pull rod, the second shafting, third shafting, the 4th shafting, the 5th shafting, the 6th shafting, the first tensioner adjustment mechanism, the second tensioner adjustment mechanism；The present invention can be realized when giving lesser central moment, and when inputting certain revolving speed, while output has the two an equal amount of revolving speeds and torque of higher rotating accuracy in the same direction, and the gear-box for transmitting the more same specification of power is twice.
Description
Technical field
The present invention relates to gear-box manufacturing fields, more specifically to a kind of twin-screw extrusion owner sliding tooth roller box.
Background technique
Currently, in the design of Transmission System in Twin Screw Extruder, development process, it is two defeated to concentrate on gear-box for principal contradiction
Shaft central moment is limited by two screw rods central moment, it is necessary to accurate fixed.Rationally to utilize the confined space in case, guarantee gear
Intensity requirement solves the contradiction that load is big, space is small in distribution gear design, also needs to optimize combination to distribution gear etc..
Therefore, it is necessary to consider as a whole, targetedly designed, and verify, analyze on this basis, it is certain to propose that a whole set of has
Research and practical value scheme, make design it is more reasonable, driven load is bigger, and transmission efficiency is higher.Currently, double spiral shells in the same direction
Bar extruder transmission system is made of deceleration part, torque distribution portion, though this two-part function is different, they are close
Connection mutually restricts.The drive mechanism layout of twin-screw gear-box is broadly divided into two kinds of driving forms: two casees driving types at present
With single case driving type.
In short, the central moment of extruder two screw rods is smaller, axial load is big, and requires have very high rotating accuracy.And
It supports the space of the transverse bearing of two output shafts, especially thrust bearing and associated transfer gear very limited in gear-box, and pushes away
The bearing capacity of power bearing directly decides the production capacity of system.Therefore, have to the structure design and processing technology of gear-box
Higher requirement.Currently, domestic associated production line is largely the gear-box of import the 1990s, it has been all made of parallel
Axis monocline tooth confluence driving form, using limitation, inefficiency.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of twin-screws to squeeze to solve above-mentioned the deficiencies in the prior art
Owner drives gear-box out, can be realized when giving lesser central moment, when inputting certain revolving speed, while output in the same direction
Two an equal amount of revolving speeds and torque with higher rotating accuracy, and the gear-box for transmitting the more same specification of power is big by one
Times.
To achieve the above object, the technical scheme adopted by the invention is that:
A kind of twin-screw extrusion owner sliding tooth roller box, the extruder include the gear-box and motor of electrical connection, the gear-box
The driving form collaborated again is first shunted using double helical tooth gear pair, the gear-box includes the first output shaft, the second output shaft, string
Shaft coupling holds, input shaft, pull rod, the second shafting, third shafting, the 4th shafting, the 5th shafting, the 6th shafting, the first tensioner tune
Complete machine structure, the second tensioner adjustment mechanism；
The input shaft and pull rod are setting up and down, pull rod and the second coupling of shaft system, and the input shaft is adjusted by the first tensioner
Mechanism connects the input terminal of second shafting, and the third shafting, the 4th shafting are located at the two sides up and down of the second shafting
And connect with the output end of the second shafting, one end of the series connection bearing is parallel with the output end of the second shafting to be connected, series shaft
The 5th axis disposed in parallel up and down is also respectively connected in the other end held and the second output axis connection, the other end for bearing of connecting
System, the 6th shafting, the 5th shafting, the 6th shafting export axis connection, first output shaft, the second output shaft with first
It is arranged in parallel and rotating Vortex；
In the gear-box, first via load stream, which is power, passes to the second shafting by gear engagement by input shaft, then passes through
First tensioner adjustment mechanism passes to the second output shaft；Second road-load lotus stream is that power is transmitted by input shaft by gear engagement
It to the second shafting, then is shunted by gear engagement and passes to third shafting and the 4th shafting, then risen respectively by two second
Fixed adjustment mechanism passes to the 5th shafting and the 6th shafting, then passes to the first output shaft by gear engagement interflow；First
Road-load lotus is flowed, the second road-load lotus stream completes the first output shaft and the second output axle load is equal, direction is identical, revolving speed is synchronous,
First output shaft, the second output shaft pass through the first tensioner adjustment mechanism and the second tensioner adjustment mechanism adjustment phase place.
Further, the rated shaft power of the gear-box is 600 kW, transmission efficiency is not less than 95%.
Further, the revolving speed of the input shaft is 700-900 r/min, first output shaft, the second output shaft
Revolving speed is 250-350 r/min.
Further, the series connection bearing belongs to unconventional bearing, and the deflection of axle sleeve comes among series connection Bearing support roller
Adjust the distribution of axle-system axial power.
Further, the series connection bearing uses 4 grades of bearings.
Further, the first tensioner adjustment mechanism, the second tensioner adjustment mechanism are for adjusting herringbone gear
Circumferential position of the pair on the first output shaft, the second output shaft.
Further, second output shaft is stiff shaft.
Further, the top of gear-box is arranged in the motor.
The beneficial effects of the present invention are:
A kind of twin-screw extrusion owner sliding tooth roller box of the invention, can be realized when giving lesser central moment, defeated
When entering certain revolving speed, while output has the two an equal amount of revolving speeds and torque of higher rotating accuracy in the same direction, and transmits function
The gear-box of the more same specification of rate is twice；
It in the present invention, is first shunted using herringbone gear pair and collaborates driving form again, using double helical tooth gear pair can be voluntarily
It eliminates gear and engages axial force, this is conducive to the service life for improving bearing, transmits on the basis of identical central square to realize
The problem of power expansion the case where being twice, it is constant to solve basic space, produces dilatation；Unit space is taken full advantage of, it will be single
Angular gear pair is changed to double helical tooth gear pair and plays the beneficial effect for reducing axial force, improving bearing life, expanding transmitting power
Fruit.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the principle of the present invention schematic diagram；
Fig. 2 is structural schematic diagram of the invention；
Fig. 3 is the partial structure diagram of Fig. 2；
Fig. 4 is that the structure of series connection bearing and stress move towards figure；
Marked in the figure: the 1, first output shaft, the 2, second output shaft, 3, series connection bearing, 4, motor, 5, input shaft, 6, pull rod, 7, the
Two shaftings, 8, third shafting, the 9, the 4th shafting, the 10, the 5th shafting, the 11, the 6th shafting, the 12, first tensioner adjustment mechanism,
13, the second tensioner adjustment mechanism.
Specific embodiment
Specific embodiment is given below, to technical solution of the present invention make further it is clear, complete, explain in detail.This
Embodiment is most preferred embodiment based on the technical solution of the present invention, but protection scope of the present invention is not limited to following implementation
Example.
A kind of twin-screw extrusion owner sliding tooth roller box, the extruder include the gear-box and motor 4 of electrical connection, the tooth
Roller box first shunts the driving form collaborated again using double helical tooth gear pair, and the gear-box is exported including the first output shaft 1, second
Axis 2, series connection bearing 3, input shaft 5, pull rod 6, the second shafting 7, third shafting 8, the 4th shafting 9, the 5th shafting 10, the 6th shafting
11, the first tensioner adjustment mechanism 12, the second tensioner adjustment mechanism 13；
The input shaft 5 and pull rod 6 are setting up and down, and pull rod 6 is connect with the second shafting 7, and the input shaft 5 passes through the first tensioner
Adjustment mechanism 12 connects the input terminal of second shafting 7, and the third shafting 8, the 4th shafting 9 are located at the second shafting 7
Two sides up and down and connect with the output end of the second shafting 7, one end of the series connection bearing 3 and the output of the second shafting 7 are held level with both hands
The other end of row connection, series connection bearing 3 is connect with the second output shaft 2, and the other end of series connection bearing 3 is also respectively connected flat up and down
The 5th shafting 10, the 6th shafting 11 of row setting, the 5th shafting 10, the 6th shafting 11 are connect with the first output shaft 1, institute
State that the first output shaft 1, the second output shaft 2 is arranged in parallel and rotating Vortex；
In the gear-box, first via load stream, which is power, passes to the second shafting 7 by gear engagement by input shaft 5, then leads to
It crosses the first tensioner adjustment mechanism 12 and passes to the second output shaft 2；Second road-load lotus stream is that power is nibbled by input shaft 5 by gear
Conjunction passes to the second shafting 7, then is shunted by gear engagement and pass to third shafting 8 and the 4th shafting 9, then passes through two respectively
A second tensioner adjustment mechanism 13 passes to the 5th shafting 10 and the 6th shafting 11, then passes to the by gear engagement interflow
One output shaft 1；First via load stream, the second road-load lotus stream complete the first output shaft 1 and 2 load of the second output shaft is equal, square
To identical, revolving speed is synchronous, the first output shaft 1, the second output shaft 2 pass through the first tensioner adjustment mechanism 12 and the second tensioner tune
13 adjustment phase place of complete machine structure.
Further, the rated shaft power of the gear-box is 600 kW, transmission efficiency is not less than 95%.Further, institute
State that bearing temperature when the moment maximum power of gear-box is 900 kW, works normally is no more than 70 DEG C, sound function grade is no more than 85dB
(A)；Gear-box uses self-loopa forced feed lubrication.The connection request of the gear-box are as follows: the first output shaft 1 and the second output shaft 2
Circumferential phase is positioned by template requirement, and gear-box lower margin hole is arranged by former requirement；It is turning to and is arranging upper: from extruder to gear
Case sees that motor 4 is rotated clockwise in the side to the left of gear-box, the first output shaft 1, the second output shaft 2 of gear-box.
Further, the Design of Gear Tooth Bending Strength principle of the gear-box are as follows: minimum according to the regulation of GB/T3480-1997
Depending on the value of safety coefficient is the requirement according to use site to failure probability.Failure probability is lower, in actual operation
Reliability it is higher, a possibility that reaching projected life, is bigger, meanwhile, the cost of manufacture and application is also higher.In engineering usually
Be failure probability≤1/1000 1.25(by minimal-contact strength assurance coefficient) minimum bend strength assurance coefficient be 1.50(failure
Probability≤1/10000) carry out value, so that operational reliability and use cost are taken into account.Calculated result can be full after optimized design
Foot requires.
Further, the first output shaft 1, the second output shaft 2 have selected self-aligning thrust roller bearing and series connection bearing respectively
To undertake the huge axial force of screw extruding generation.
Further, the revolving speed of the input shaft 5 is 700-900 r/min, first output shaft 1, the second output shaft 2
Revolving speed be 250-350 r/min.In the present embodiment, the revolving speed of the input shaft 5 is 850 r/min, first output
Axis 1, the second output shaft 2 revolving speed be 304.123 r/min.
Further, the series connection bearing 3 belongs to unconventional bearing, generally requires customization.Bearing 3 connect among roller
The deflection of axle sleeve is distributed to adjust axle-system axial power.The deflection of each axle sleeve is different.Therefore, when assembly, between bearing roller
Axle sleeve be absolutely to be unable to reversing of position.Further, the series connection bearing 3 uses 4 grades of bearings.Further, such as Fig. 4 institute
The structure and stress for being shown as series connection bearing 3 move towards figure, as shown in the figure: arrow direction is load flow direction, and arrow thickness is that load is big
It is small, the stringent accurate deformation for calculating GR1 and GR2 is needed to distribute magnitude of load and flow direction, in the present embodiment, purchases the list of FAG
Grade bearing components, GR1, GR2 and GR3 that then design calculates processing are 4 grades, are completed and come into operation, effect is good
Good, accuracy is high, reduces costs, improves efficiency, can be used as assisting production on a large scale.
Further, the first tensioner adjustment mechanism 12, the second tensioner adjustment mechanism 13 are for adjusting double helical tooth
Circumferential position of the gear pair on the first output shaft 1, the second output shaft 2, is micro-adjusted, to close again after meeting load-division
The phase requirements for carrying requirement and the first output shaft 1 and the second output shaft 2 of stream.Due to the first output shaft 1, the second output shaft 2
There are phase requirements, there need to be dedicated fixture to be adapted to.Which dictates that the first output shaft 1 of gear-box, the second output shaft 2, i.e., two
Output spline will also have phase requirements and be consistent with special fixture.Inlet Gear Box has been selected by adjusting gear
Circumferential position of the pair on axis realizes this phase requirements, this to the tolerance in the aperture of gear and the axle journal where it compared with
To be stringent, and need to be assembled with special hydraulic assembly tool.This undoubtedly brings greatly not to the maintenance in later period and maintenance
Just.Technical solution of the present invention has selected tensioner adjustment mechanism to be fed this structure, makes to adjust and safeguard all more just
It is prompt.
Further, second output shaft 2 is stiff shaft.It is to do the elongated shaft of the second output shaft 2 in the prior art
At flexible shaft, by the torsional deflection of this axis, problem is carried to realize, strictly accurately to be calculated certainly, at present domestic processing
Technology, material and heat treatment process are difficult to work it out, this is also that original domestic gear-box uses 2 ~ 5 months just badly damaged roots
This reason, in addition, the phase requirements of two output shafts, gear-box be pass through by the interference fit of strict control gear and axis it is hydraulic
What device was adjusted, it is not easy to realize, and adjusted in the present invention using tensioner adjustment mechanism 12 and the second tensioner adjustment mechanism 13
Phase requirements, can be using reliable key connection between gear and axis.
Further, the top of gear-box is arranged in the motor 4.
In conclusion the gear-box is improved by the Intensity Design to gear pair, and to the calculation and check of bearing life
The structure type of original Inlet Gear Box has been more than the requirement of Inlet Gear Box to a certain extent.It can satisfy completely
Produce the needs of dilatation.Reach gear-box and sets up the international most advanced level that meter is made.
The present invention can be realized when giving lesser central moment, when inputting certain revolving speed, while output tool in the same direction
There are the two an equal amount of revolving speeds and torque of higher rotating accuracy, and the gear-box for transmitting the more same specification of power is twice；
It in the present invention, is first shunted using herringbone gear pair and collaborates driving form again, can voluntarily eliminated using double helical tooth gear pair
Gear engages axial force, this is conducive to the service life for improving bearing, transmits power on the basis of identical central square to realize
The problem of expansion the case where being twice, it is constant to solve basic space, produces dilatation；Unit space is taken full advantage of, by monocline tooth
Gear pair is changed to double helical tooth gear pair and plays the beneficial effect for reducing axial force, improving bearing life, expanding transmitting power.
Main feature of the invention, basic principle and advantages of the present invention has been shown and described above.Industry technology
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, the present invention can also have various change according to the actual situation
And improvement, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended
Claims and its equivalent thereof.
Claims (8)
1. a kind of twin-screw extrusion owner sliding tooth roller box, which includes the gear-box and motor (4) of electrical connection, feature
Be: the gear-box first shunts the driving form collaborated again using double helical tooth gear pair, and the gear-box includes the first output
Axis (1), the second output shaft (2), series connection bearing (3), input shaft (5), pull rod (6), the second shafting (7), third shafting (8), the
Four shaftings (9), the 5th shafting (10), the 6th shafting (11), the first tensioner adjustment mechanism (12), the second tensioner adjustment mechanism
(13)；
The input shaft (5) and pull rod (6) are setting up and down, and pull rod (6) is connect with the second shafting (7), and the input shaft (5) passes through
First tensioner adjustment mechanism (12) connects the input terminal of second shafting (7), the third shafting (8), the 4th shafting (9)
It is located at the two sides up and down of the second shafting (7) and is connect with the output end of the second shafting (7), the one of series connection bearing (3)
End is parallel with the output end of the second shafting (7) to be connected, and the other end of series connection bearing (3) is connect with the second output shaft (2), series shaft
The 5th shafting (10) disposed in parallel, the 6th shafting (11) up and down, the 5th shafting is also respectively connected in the other end for holding (3)
(10), the 6th shafting (11) is connect with the first output shaft (1), and first output shaft (1), the second output shaft (2) are set in parallel
It sets and rotating Vortex；
In the gear-box, first via load stream, which is power, passes to the second shafting (7) by gear engagement by input shaft (5),
The second output shaft (2) are passed to by the first tensioner adjustment mechanism (12) again；Second road-load lotus stream is power by input shaft (5)
It is passed to the second shafting (7) by gear engagement, then is shunted by gear engagement and pass to third shafting (8) and the 4th shafting
(9), the 5th shafting (10) and the 6th shafting (11) then are passed to by two the second tensioner adjustment mechanisms (13) respectively, then
The first output shaft (1) is passed to by gear engagement interflow；First via load stream, the second road-load lotus stream complete the first output shaft
(1) equal with the second output shaft (2) load, direction is identical, revolving speed is synchronous, the first output shaft (1), the second output shaft (2) pass through
First tensioner adjustment mechanism (12) and second tensioner adjustment mechanism (13) adjustment phase place.
2. a kind of twin-screw extrusion owner sliding tooth roller box according to claim 1, it is characterised in that: the gear-box
Rated shaft power is 600 kW, transmission efficiency is not less than 95%.
3. a kind of twin-screw extrusion owner sliding tooth roller box according to claim 1, it is characterised in that: the input shaft
(5) revolving speed be 700-900 r/min, first output shaft (1), the second output shaft (2) revolving speed be 250-350 r/
min。
4. a kind of twin-screw extrusion owner sliding tooth roller box according to claim 1, it is characterised in that: the series connection bearing
(3) belong to unconventional bearing, series connection bearing (3) adjusts the distribution of axle-system axial power by the deflection of axle sleeve among roller.
5. a kind of twin-screw extrusion owner sliding tooth roller box according to claim 4, it is characterised in that: the series connection bearing
(3) 4 grades of bearings are used.
6. a kind of twin-screw extrusion owner sliding tooth roller box according to claim 1, it is characterised in that: first tensioner
Set adjustment mechanism (12), the second tensioner adjustment mechanism (13) are for adjusting double helical tooth gear pair in the first output shaft (1), second
Circumferential position on output shaft (2).
7. a kind of twin-screw extrusion owner sliding tooth roller box according to claim 1, it is characterised in that: second output
Axis (2) is stiff shaft.
8. a kind of twin-screw extrusion owner sliding tooth roller box according to claim 1, it is characterised in that: the motor (4)
The top of gear-box is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910155099.5A CN109854722A (en) | 2019-03-01 | 2019-03-01 | A kind of twin-screw extrusion owner sliding tooth roller box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910155099.5A CN109854722A (en) | 2019-03-01 | 2019-03-01 | A kind of twin-screw extrusion owner sliding tooth roller box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109854722A true CN109854722A (en) | 2019-06-07 |
Family
ID=66899443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910155099.5A Pending CN109854722A (en) | 2019-03-01 | 2019-03-01 | A kind of twin-screw extrusion owner sliding tooth roller box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109854722A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032260A (en) * | 2020-08-24 | 2020-12-04 | 郑州机械研究所有限公司 | Method for assembling and phase adjusting equidirectional output structure |
| CN112628364A (en) * | 2020-12-28 | 2021-04-09 | 大连橡胶塑料机械有限公司 | Phase adjusting device and method for double output shafts of homodromous double-screw speed reducer |
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| CN205937652U (en) * | 2016-07-28 | 2017-02-08 | 百象机械股份有限公司 | Transmission structure of quick -witted gear box is given as security out to twin -screw |
| CN106393629A (en) * | 2015-03-27 | 2017-02-15 | 伦克股份有限公司 | Transmission structure of drive for twin-screw extruder |
| CN106763528A (en) * | 2016-12-20 | 2017-05-31 | 湖南南方宇航高精传动有限公司 | A kind of power dividing input and output coaxial gear-box and gear assembly method in the same direction |
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| DE29804958U1 (en) * | 1997-12-08 | 1998-07-30 | Thyssen Henschel GmbH, 34127 Kassel | Gear, especially for twin screw extruders |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032260A (en) * | 2020-08-24 | 2020-12-04 | 郑州机械研究所有限公司 | Method for assembling and phase adjusting equidirectional output structure |
| CN112628364A (en) * | 2020-12-28 | 2021-04-09 | 大连橡胶塑料机械有限公司 | Phase adjusting device and method for double output shafts of homodromous double-screw speed reducer |
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Application publication date: 20190607 |
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