CN203974038U - A kind of two, three or multiscrew axial carrying device - Google Patents
A kind of two, three or multiscrew axial carrying device Download PDFInfo
- Publication number
- CN203974038U CN203974038U CN201420054139.XU CN201420054139U CN203974038U CN 203974038 U CN203974038 U CN 203974038U CN 201420054139 U CN201420054139 U CN 201420054139U CN 203974038 U CN203974038 U CN 203974038U
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- Prior art keywords
- bevel gear
- cone pulley
- ball bearing
- multiscrew
- deep groove
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Abstract
The utility model discloses a kind of two, three or multiscrew axial carrying device.The first cone pulley of this device or bevel gear, the second cone pulley or bevel gear, the 3rd cone pulley or bevel gear are connected with the first cone pulley or bevel gear shaft, the second cone pulley or bevel gear shaft the 3rd cone pulley or bevel gear shaft respectively; Arranging respectively the second cone pulley or bevel gear and the 3rd cone pulley or bevel gear with the axis vertical direction of the first cone pulley or bevel gear, the first cone pulley or bevel gear are connected with a joggle with the second cone pulley or bevel gear and the 3rd cone pulley or bevel gear respectively, and three cone pulleys or bevel gear right angle in same plane are tangent; That the first cone pulley or bevel gear are assemblied in is two, three or the tail end of multiscrew, the first cone pulley or bevel gear shaft are connected with external screw shaft; That the utility model is avoided is two, three or the restriction of multiscrew distance between axles arrange large bearing capacity thrust bearing, make two, three or the extrusion pressure of multiscrew extrusion system unrestricted, realize the straight forming goods processing of macromolecular material high yield, high pulling torque.
Description
Technical field
The utility model relates to a kind of screw axial bogey, particularly relate to a kind of two, three or multiscrew axial carrying device.
Background technology
Two, three or multiscrew device of plastic processing be widely used in plastic processing industry.Two, three or multi-screw extruder be different from single screw extrusion machine, be to have one, two or more region of engagements according to the difference of screw rod quantity, and increasing of region of engagement causes rolling area and is multiplied, can push efficiently material, fragmentation, kneading, calendering, the effect of stretching kneading, make two, three or multi-screw extruder there is better mixing, exhaust, reaction and self-cleaning function.Homodromal two, three or multi-screw extruder good mixing effect, upbuild voltage capacity is poor, is mainly used in the blending and modifying of polymer, is generally not used in straight forming goods; And counter rotating is two, three or multi-screw extruder there is positive conveyance characteristic, its conveying capacity and upbuild voltage capacity are all very strong, thereby can be used for direct extruded product.In recent years, two, three or multiscrew device of plastic processing towards the future development of high speed, maximization, thereby require two, three or multi-screw extruder can high speed, high yield, precise forming goods, to adopt large thrust bearing and torque distribution gear, to can bear high moment of torsion and high axial thrust load; But then, because moment of torsion and axial force are to be loaded on screw rod and bearing in the geometric space of centre-to-centre spacing restriction, and centre-to-centre spacing between screw rod is limited, moment of torsion and axial force are higher, just more difficult to manufacturing and designing of the parts such as power transmission shaft, gear and bearing in transmission system.
Two, three or multi-screw extruder when work, due to the existence of screw axial additional dynamic load, the axle that causes screw rod to be connected with this screw rod is subject to very large axial thrust.This axial thrust finally need to be born by the thrust bearing in transmission case, and the bearing capacity of general thrust bearing is relevant with its diameter, and diameter is larger, and bearing capacity is also larger.For example in current domestic PVC product extrusion processing and forming, mostly adopt conical double ribbon pavilion extruder, but when screw diameter is greatly to a certain extent time, conical double screw extruder needs large-sized thrust bearing and torque distribution gear, can make machine construction too huge, therefore conical double-screw machine screw diameter is generally limited at present
in scope.
Generally adopt at present the minor diameter thrust bearing series connection of several same sizes to use, jointly bear larger axial force solve two, three or the problem of multiscrew axial force, but exist axial thrust limited, the problems such as poor work stability.Therefore, at present two, three or multi-screw extruder ubiquity the axial thrust demand constantly increasing and the thrust bearing that is subject to the restriction of screw rod centre-to-centre spacing can not meet the contradiction of the requirement of design.
Utility model content
That the purpose of this utility model is to provide is a kind of two, three or multiscrew axial carrying device, two to solve, three or the multiscrew distance between axles restriction problem of arranging large bearing capacity thrust bearing, make two, three or the extrusion pressure of multiscrew extrusion system unrestricted, thereby can realize the straight forming goods processing of macromolecular material high yield, high pulling torque.
That the utility model engages by helical gear is two, three or the transmission system of multi-screw extruder in, the axial thrust of screw rod is transferred to perpendicular cone pulley axle or the axis direction of bevel gear shaft by cone pulley or bevel gear by arranged at right angles, avoid two, three or the restriction of multiscrew distance between axles arrange large bearing capacity thrust bearing, make two, three or the extrusion pressure of multiscrew extrusion system unrestricted.
The utility model object is achieved through the following technical solutions:
A kind of two, three or multiscrew axial carrying device, mainly by the first cone pulley or bevel gear, the second cone pulley or bevel gear, the 3rd cone pulley or bevel gear, the first cone pulley or bevel gear shaft, the second cone pulley or bevel gear shaft, the 3rd cone pulley or bevel gear shaft, the first deep groove ball bearing, the second deep groove ball bearing, the 3rd deep groove ball bearing, thrust ball bearing and housing composition; Wherein, the first cone pulley or bevel gear, the second cone pulley or bevel gear, the 3rd cone pulley or bevel gear are connected with the first cone pulley or bevel gear shaft, the second cone pulley or bevel gear shaft the 3rd cone pulley or bevel gear shaft respectively; Arranging respectively the second cone pulley or bevel gear and the 3rd cone pulley or bevel gear with the axis vertical direction of the first cone pulley or bevel gear, the first cone pulley or bevel gear are connected with a joggle with the second cone pulley or bevel gear and the 3rd cone pulley or bevel gear respectively, and three cone pulleys or bevel gear right angle in same plane are tangent; That the first cone pulley or bevel gear are assemblied in is two, three or the tail end of multiscrew, the first cone pulley or bevel gear shaft are connected with external screw shaft;
The first cone pulley or bevel gear shaft are provided with the first deep groove ball bearing, on the second cone pulley or bevel gear shaft and the 3rd cone pulley or bevel gear shaft, are all at least provided with a deep groove ball bearing and thrust ball bearing; That deep groove ball bearing and thrust ball bearing are all arranged on is two, three or multiscrew axial carrying device housing on.
Preferably, all 2 deep groove ball bearings and thrust ball bearing on described the second cone pulley or bevel gear shaft and the 3rd cone pulley or bevel gear shaft; Be respectively the first deep groove ball bearing, the second deep groove ball bearing and the first thrust ball bearing; The first thrust ball bearing between the second deep groove ball bearing and the 3rd deep groove ball bearing, that the first deep groove ball bearing, the second deep groove ball bearing, the 3rd deep groove ball bearing and the first thrust ball bearing are all arranged on is two, three or multiscrew axial carrying device housing on.
Described multiscrew axial carrying device is 5 screw axis bogeys.Three screw axial bogeys are in the same way or incorgruous three screw axial bogeys.
The utility model is two, three or the tail end of the driven screw rod of multi-screw extruder a cone pulley or bevel gear are set, arranging respectively another two cone pulleys or bevel gear with this cone pulley or bevel gear axis vertical direction, ensure that three cone pulleys or bevel gear shaft right angle in same plane are tangent, on the cone pulley that vertical direction is arranged or bevel gear shaft, arrange several rolling bearings, in the axial force that ensures to carry in cone pulley or bevel gear are accurately rotated cone pulley or bevel gear transmission.That this axial carrying device is arranged at is two, three or the rear end of the driven screw gear of multi-screw extruder, replace traditional bearing string structure, in the time that driving screw rotates, the axial load of driven screw rod is born by this axial carrying device.
The utility model is two, three or multiscrew axial carrying device can apply with in the same way or counter rotation twin screw extruder, in the same way or in counter-rotating triple-screw extruder and multiscrew basis, realize two, three or the processing of multiscrew straight forming goods.
The utlity model has following advantage with respect to prior art:
1, solve existing two, three or multi-screw extruder axial load be subject to the problem of screw rod spacing restriction, the ability to bear of screw axial load improves greatly.
2, owing to can bearing larger axial compressive force, make draw ratio and the work extrusion pressure larger raising of double screw extruder, thereby realize two, three or multi-screw extruder high speed, high yield, Precision Machining.
3,, owing to can bearing larger axial compressive force, can realize two in the same way, three screw rod direct extrusion moldings.
Brief description of the drawings
Fig. 1 be a kind of two, three or multiscrew axial carrying device structural representation;
Fig. 2 is a kind of counter-rotating triple-screw extruder axial section schematic diagram with axial carrying device;
Fig. 3 is that the A-A of Fig. 2 or Fig. 5 is to cutaway view;
Fig. 4 is that the B-B of Fig. 2 is to cutaway view;
Fig. 5 is a kind of axial section of three-screw extruder in the same way schematic diagram with axial carrying device;
Fig. 6 is that the C-C of Fig. 5 is to cutaway view;
Fig. 7 is a kind of five screw extruder axial section schematic diagrames with axial carrying device;
Fig. 8 is that the D-D of Fig. 7 is to cutaway view.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further detailed, but the claimed scope of the utility model is not limited to the scope of embodiment statement.
As shown in Figure 1, a kind of two, three or multiscrew axial carrying device, mainly by the first cone pulley or bevel gear 3, the second cone pulley or bevel gear 8, the 3rd cone pulley or bevel gear 9, the first cone pulley or bevel gear shaft 1, the second cone pulley or bevel gear shaft 7, the 3rd cone pulley or bevel gear shaft 10, the first deep groove ball bearings 2, the second deep groove ball bearing 4, the 3rd deep groove ball bearing 6, thrust ball bearing 5 and housing composition; Wherein, the first cone pulley or bevel gear 3, the second cone pulley or bevel gear 8, the 3rd cone pulley or bevel gear 9 are connected with the first cone pulley or bevel gear shaft 1, the second cone pulley or bevel gear shaft 7, the 3rd cone pulley or bevel gear shaft 10 respectively; Arranging respectively the second cone pulley or bevel gear 8 and the 3rd cone pulley or bevel gear 9 with the axis vertical direction of the first cone pulley or bevel gear 3, the first cone pulley or bevel gear 3 are connected with a joggle with the second cone pulley or bevel gear 8 and the 3rd cone pulley or bevel gear 9 respectively, three cone pulleys or bevel gear axis right-angle array in same plane, ensure that cone pulley or bevel gear surface are tangent; That the first cone pulley or bevel gear 3 are assemblied in is two, three or the tail end of multiscrew, the first cone pulley or bevel gear shaft 1 are connected with external screw shaft;
The first cone pulley or bevel gear shaft 1 are provided with and on the first deep groove ball bearing 2, the second cone pulleys or bevel gear shaft 7 and the 3rd cone pulley or bevel gear shaft 10, are all provided with the second deep groove ball bearing 4, the 3rd deep groove ball bearing 6 and thrust ball bearing 5; The first thrust ball bearing 5 between the second deep groove ball bearing 4 and the 3rd deep groove ball bearing 6, that the first deep groove ball bearing 2, the second deep groove ball bearing 4, the 3rd deep groove ball bearing 6 and the first thrust ball bearing 5 are all arranged on is two, three or multiscrew axial carrying device housing on.
Two, three or multiscrew axial carrying device when work, the first cone pulley or bevel gear 3 drive the second cone pulley or bevel gear 8, the 3rd cone pulley or bevel gear 9 engagement rotations, the axial force that the first cone pulley or bevel gear 3 pass over external screw rod is allocated on the second cone pulley or bevel gear 8 and the 3rd cone pulley or bevel gear 9, axial force in horizontal direction is resolved into the axial force of two vertical direction, the second cone pulley or bevel gear 8 and the 3rd cone pulley or bevel gear 9 axial force are vertically born by two same thrust ball bearings 5.
It is two that the utility model helical gear engages, three or the transmission system of multi-screw extruder in, for at present generally by adopt large thrust bearing and torque distribution gear to bear power transmission shaft in the transmission system that high moment of torsion and high axial thrust load bring at same axis direction, the parts such as gear and bearing manufacture and design difficult problem, the first cone pulley or the bevel gear 3 of arranged at right angles in same plane have been proposed, the second cone pulley or bevel gear 8, the axial thrust of screw rod is transferred to perpendicular cone pulley axle or the axis direction of bevel gear shaft by the 3rd cone pulley or bevel gear 9, avoid two, three or multiscrew distance between axles restriction arrange large bearing capacity thrust bearing, make two, three or the extrusion pressure of multiscrew extrusion system unrestricted.
Embodiment 1
As Fig. 2,3, shown in 4, a kind of counter-rotating triple-screw extruder with axial carrying device, is mainly made up of parts such as the first driven screw rod 11, active screw rod 12, the second driven screw rod 13, machine barrel 14, the first axial carrying device I, the second axial carrying device II and three travelling gears 16.The first driven screw rod 11 is connected with two screw rods power transmission shaft 21 respectively with the second driven screw rod 13, initiatively screw rod 12 is connected with driving shaft 19, on two screw rods power transmission shaft 21 and driving shaft 19, be respectively equipped with travelling gear 16, the travelling gear 16 of driving shaft 19 engages with the travelling gear 16 of two screw rods power transmission shaft 21 respectively, realizes the first driven screw rod 11, initiatively screw rod 12 and the incorgruous rotation of the second driven screw rod 13 by three travelling gears 16; Screw drive axle 21 is provided with the rotation of the 4th deep groove ball bearing 15, the four deep groove ball bearings 15 for studdle power transmission shaft 21, is provided with the 5th deep groove ball bearing 17 and the second thrust ball bearing 18 on the driving shaft 19 of active screw rod 12; The second thrust ball bearing 18 bears the axial load that initiatively screw rod 12 produces in process; The first axial carrying device I and the second axial carrying device II are arranged in respectively the tail end of the first driven screw rod 11 and the second driven screw rod 13, are positioned at the rear end of travelling gear 16; Bear respectively the axial load that the first driven screw rod 11 and the second driven screw rod 13 produce in process.In the time rotating under the drive at motor of driving shaft 19 that active screw rod 12 connects, the second cone pulley in the first axial carrying device I and the second axial carrying device II or bevel gear 8 and the 3rd cone pulley or bevel gear 9 are vertically arranged, can avoid limiting selecting of thrust bearing by screw rod level interval deficiency, finally can realize the large load precise forming of counter-rotating triple-screw extruder.
Antidromous three screw rods have positive conveyance, can be used for direct extruded product, but owing to can producing larger extrusion pressure and axial thrust in extrusion molding process, therefore need to arrange that enough large thrust bearing could meet processing request, then because the pitch-limited between screw rod is in the size of screw rod and the height of spiral shell rib, cannot meet the layout of large scale thrust bearing, therefore have a huge impact for precision and the extrusion pressure of final processing and forming, and this embodiment device has solved the problems referred to above, the large load precise forming of three-screw extruder is achieved.
Embodiment 2
As shown in Fig. 3,5,6, a kind of three-screw extruder in the same way with axial carrying device, mainly by the first driven screw rod 11, active screw rod 12, the second driven screw rod 13, machine barrel 14, the first axial carrying device I, the second axial carrying device II and the first travelling gear 16 and the second travelling gear 20 form.The first driven screw rod 11 is connected with two screw rods power transmission shaft 21 respectively with the second driven screw rod 13, initiatively screw rod 12 is connected with driving shaft 19, on two screw rods power transmission shaft 21, be respectively equipped with the first travelling gear 16 and the second travelling gear 20, the first travelling gears 16 are connected by axle with the second travelling gear 20, driving shaft 19 is provided with the second travelling gear 20, the second travelling gear 20 on driving shaft 19 engages with another two the second travelling gears respectively, realizes the first driven screw rod 11 and the second driven screw rod 13 and active screw rod 12 rotating in same directions, screw drive axle 21 is provided with the 4th deep groove ball bearing 15, dark the 4th ditch ball bearing 15 is for the rotation of studdle power transmission shaft 21, on the driving shaft 19 of active screw rod 12, be provided with the 5th deep groove ball bearing 17 and the second thrust ball bearing 18, the second thrust ball bearing 18 bears the axial load that initiatively screw rod 12 produces in process, the first axial carrying device I and the second axial carrying device II are arranged in respectively the tail end of the first driven screw rod 11 and the second driven screw rod 13, between the first travelling gear 16 and the second travelling gear 20, bear respectively the axial load that the first driven screw rod 11 and the second driven screw rod 13 produce in process.In the time rotating under the drive at motor of driving shaft 19 that active screw rod 12 connects, the second cone pulley in the first axial carrying device I and the second axial carrying device II or bevel gear 8 and the 3rd cone pulley or bevel gear 9 are vertically arranged, can avoid limiting selecting of thrust bearing by screw rod level interval deficiency, finally can realize the stable processing of the large load of three-screw extruder in the same way.Three screw rods that turn are in the same way mainly used to the blending and modifying of polymer, and the problem running in extrusion engineering and incorgruous three screw rods are similar, and the present embodiment effect is substantially the same manner as Example 2.
Embodiment 3
As shown in Figure 7,8, a kind of five screw extruders with axial carrying device, mainly by active screw rod 12, the first driven screw rod 11, the second driven screw rod 13, the 3rd driven screw rod 22, the 4th driven screw rod 23, machine barrel 14, the first axial carrying device I, the second axial carrying device II, the 3rd axial carrying device III, four-axial bogey IV, the 5th axial carrying device V, transmission helical gear 16 compositions such as parts such as grade.
In the time rotating under the drive at motor of driving shaft 19 that active screw rod 12 connects, by realizing the planetary rotation of the first driven screw rod 11, the second driven screw rod 13, the 3rd driven screw rod 22 and the 4th driven screw rod 23 after series of gears 16 transmissions, the 4th deep groove ball bearing 15, for the rotation of studdle power transmission shaft 21, arranges that on the driving shaft 19 of active screw rod 12 the 5th deep groove ball bearing 17, the second thrust ball bearing 18 bear the axial load that initiatively screw rod 12 produces in process.Owing to limited by screw rod spacing, the first axial carrying device I, the second axial carrying device II, in the 3rd axial carrying device III and four-axial bogey IV, only arrange in vertical direction a cone pulley or bevel gear 8, the first axial carrying device I, the second axial carrying device II, the 3rd axial carrying device III and centripetal the arranging of four-axial bogey IV, be placed in the cone pulley of screw rod tail end and travelling gear rear end or bevel gear 3 by the first driven screw rod 11, the second driven screw rod 13, the axial load that the 3rd driven screw rod 22 and the 4th driven screw rod 23 transmit transfer to cone pulley or bevel gear 3 vertical direction on cone pulley or bevel gear 8, on cone pulley or bevel gear shaft 7, arrange the first deep groove ball bearing 4, the second deep groove ball bearing 6, the first thrust ball bearing 5 is born the load that shifts the vertical direction of coming.Thereby solve a difficult problem that is subject to the restriction of screw rod spacing and can not carry with large-scale thrust bearing or bearing string axial load, ensure five screw extruder top load smooth operation processing.
Claims (4)
- One kind two, three or multiscrew axial carrying device, it is characterized in that, mainly by the first cone pulley or bevel gear, the second cone pulley or bevel gear, the 3rd cone pulley or bevel gear, the first cone pulley or bevel gear shaft, the second cone pulley or bevel gear shaft, the 3rd cone pulley or bevel gear shaft, the first deep groove ball bearing, the second deep groove ball bearing, the 3rd deep groove ball bearing, thrust ball bearing and housing composition; Wherein, the first cone pulley or bevel gear, the second cone pulley or bevel gear, the 3rd cone pulley or bevel gear are connected with the first cone pulley or bevel gear shaft, the second cone pulley or bevel gear shaft the 3rd cone pulley or bevel gear shaft respectively; Arranging respectively the second cone pulley or bevel gear and the 3rd cone pulley or bevel gear with the axis vertical direction of the first cone pulley or bevel gear, the first cone pulley or bevel gear are connected with a joggle with the second cone pulley or bevel gear and the 3rd cone pulley or bevel gear respectively, and three cone pulleys or bevel gear right angle in same plane are tangent; That the first cone pulley or bevel gear are assemblied in is two, three or the tail end of multiscrew, the first cone pulley or bevel gear shaft are connected with external screw shaft;The first cone pulley or bevel gear shaft are provided with the first deep groove ball bearing, on the second cone pulley or bevel gear shaft and the 3rd cone pulley or bevel gear shaft, are all at least provided with a deep groove ball bearing and thrust ball bearing; That deep groove ball bearing and thrust ball bearing are all arranged on is two, three or multiscrew axial carrying device housing on.
- According to claim 1 two, three or multiscrew axial carrying device, it is characterized in that, on described the second cone pulley or bevel gear shaft and the 3rd cone pulley or bevel gear shaft, be all provided with 2 deep groove ball bearings and 1 thrust ball bearing; Be respectively the second deep groove ball bearing, the 3rd deep groove ball bearing and the first thrust ball bearing; The first thrust ball bearing between the second deep groove ball bearing and the 3rd deep groove ball bearing, that the second deep groove ball bearing, the 3rd deep groove ball bearing and the first thrust ball bearing are all arranged on is two, three or multiscrew axial carrying device housing on.
- According to claim 1 two, three or multiscrew axial carrying device, it is characterized in that, described multiscrew axial carrying device is 5 screw axis bogeys.
- According to claim 1 two, three or multiscrew axial carrying device, it is characterized in that, three screw axial bogeys are in the same way or incorgruous three screw axial bogeys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420054139.XU CN203974038U (en) | 2014-01-27 | 2014-01-27 | A kind of two, three or multiscrew axial carrying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420054139.XU CN203974038U (en) | 2014-01-27 | 2014-01-27 | A kind of two, three or multiscrew axial carrying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203974038U true CN203974038U (en) | 2014-12-03 |
Family
ID=51971519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420054139.XU Expired - Fee Related CN203974038U (en) | 2014-01-27 | 2014-01-27 | A kind of two, three or multiscrew axial carrying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203974038U (en) |
-
2014
- 2014-01-27 CN CN201420054139.XU patent/CN203974038U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ji Jinping Inventor after: Yang Zhitao Inventor before: Ji Jinping Inventor before: Yang Zhitao Inventor before: Chen Jiajia |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: QU JINPING YANG ZHITAO CHEN JIAJIA TO: QU JINPING YANG ZHITAO |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20190127 |