CN203023447U - Distribution gear box of homo-directional conical dual-screw extruder - Google Patents

Distribution gear box of homo-directional conical dual-screw extruder Download PDF

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Publication number
CN203023447U
CN203023447U CN2012206583170U CN201220658317U CN203023447U CN 203023447 U CN203023447 U CN 203023447U CN 2012206583170 U CN2012206583170 U CN 2012206583170U CN 201220658317 U CN201220658317 U CN 201220658317U CN 203023447 U CN203023447 U CN 203023447U
Authority
CN
China
Prior art keywords
transmission
axis
gear
screw extruder
taper gear
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.)
Expired - Fee Related
Application number
CN2012206583170U
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Chinese (zh)
Inventor
李刘汉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANGSHA LIANLI INDUSTRIAL Co Ltd
Original Assignee
CHANGSHA LIANLI INDUSTRIAL Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHANGSHA LIANLI INDUSTRIAL Co Ltd filed Critical CHANGSHA LIANLI INDUSTRIAL Co Ltd
Priority to CN2012206583170U priority Critical patent/CN203023447U/en
Application granted granted Critical
Publication of CN203023447U publication Critical patent/CN203023447U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means 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
    • B29C48/40Means 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
    • B29C48/435Sub-screws
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means 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
    • B29C48/40Means 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
    • B29C48/42Non-identical or non-mirrored screws

Abstract

The utility model discloses a distribution gear box of a homo-directional conical dual-screw extruder. The distribution gear box of the homo-directional conical dual-screw extruder comprises a box body, a rear covering plate, a connection sleeve, a flange, a locking nut, a transmission long shaft, a transmission short shaft and a middle shaft, wherein one side of the box body is connected with the connection sleeve through the flange, the other end of the connection sleeve is connected with the locking nut, the transmission long shaft is arranged inside the box body, the box body is connected with the rear covering plate, the transmission long shaft is provided with a first small tapered gear, the transmission short shaft is provided with a second small tapered gear, the middle shaft is provided with a large tapered gear which is meshed with the first small tapered gear and the second small tapered gear, and a gap exists between a top circle of the first small tapered gear and a top circle of the second small tapered gear. The distribution gear box is particularly suitable for modifying an anisotropic conical dual-screw extruder into the homo-directional conical dual-screw extruder, in the process of modification, only components of the distribution gear box need to be replaced, and other components of the extruder are reserved.

Description

A kind of co-rotating conical twin-screw extruder distribution gear case
Technical field
The utility model relates to the rubber and plastics machine field, and more particularly, the utility model relates to a kind of driving mechanism, relates to especially a kind of co-rotating conical twin-screw extruder distribution gear case.
Background technique
Compare with incorgruous conical double screw extruder, the co-rotating conical twin-screw extruder has excellent Combination, energy saving and high production capacity, and the devolatilization that begins to be applied to filling, blend, modification, enhancing, chlorinated polypropylene and the super absorbent resin of rubber and plastic and engineering resin is processed; Extruding of degradable masterbatch, polyamide polycondensation, polyurethane addition polymerization; The preparation of the granulation of carbon dust, magnetic, insulating material for cable, protective cover material, low smoke and low halogen type PVC CABLE MATERIALS and various crosslinked with silicane material etc.For extruder, the distribution gear case is one of its core component.
At present, possess a large amount of incorgruous conical double screw extruders in factory, use if original incorgruous conical double screw extruder can be adapted as the co-rotating conical twin-screw extruder, can save a large amount of equipment purchase expenses for factory, have obvious economic benefit.In prior art, incorgruous conical double screw extruder distribution gear case has two transmission shafts, take transmission shaft wherein as input end, and drives another root transmission shaft, carries out power output by two transmission shafts; Co-rotating conical twin-screw extruder distribution gear case is three shaft drive, and by the jack shaft input power, gear transmission carries out power output for another two axles.Therefore, when incorgruous conical double screw extruder changes the co-rotating conical twin-screw extruder into, due to the position change of distribution gear case input shaft, will bring the larger change of extruder miscellaneous part, repacking trouble and expense are higher.
Therefore, provide that a kind of to be specially adapted to incorgruous conical double screw extruder is changed into the distribution gear case that the co-rotating conical twin-screw extruder uses be the technical problem that those skilled in the art need solution badly. ?
The model utility content
The purpose of this utility model is to provide a kind of being specially adapted to incorgruous conical double screw extruder is changed into the distribution gear case that the co-rotating conical twin-screw extruder uses.
To achieve these goals, the utility model provides a kind of co-rotating conical twin-screw extruder distribution gear case, comprises casing, back shroud, coupling sleeve, flange, locking nut, transmission long axis, transmission minor axis, jack shaft; Described casing one side is connected with described coupling sleeve by described flange, and described coupling sleeve opposite side is connected with described locking nut; Described transmission long axis is installed in described casing, and its output terminal extends in described coupling sleeve; In described transmission long axis input end one side, described casing is connected with described back shroud; Described transmission long axis is connected by the hole axle and the first Small taper gear is equipped with in the flat key connection, described transmission minor axis is connected by the hole axle and the second Small taper gear is equipped with in the flat key connection, described jack shaft is connected by the hole axle and the steep-taper gear is equipped with in the flat key connection, the first Small taper gear on steep-taper gear on described jack shaft and described transmission long axis, the second Small taper gear on described transmission minor axis are meshed, and leave the gap between described the first Small taper gear top circle and described the second Small taper gear top circle.
Preferably, described transmission long axis axis, described transmission minor axis axis and described jack shaft axes intersect are in a bit, and described transmission long axis axis and described jack shaft axis are determined the first plane; Described transmission minor axis axis and described jack shaft axis are determined the second plane; Described transmission long axis axis and described transmission minor axis axis are determined the 3rd plane.
Preferably, described the first Small taper gear, the second Small taper gear and steep-taper gear are the very little taper gears of a kind of reference cone angle, the taper gear transmission is a kind of approximate circle Column gear transmission along the continuous displacement of Gear axis and change transverse tooth thickness, and it is nonlinear along Gear axis that its addendum modification and transverse tooth thickness change.
Preferably, described transmission long axis output terminal is connected with the first sliding cross coupling.
Preferably, described transmission minor axis output terminal is connected with the second sliding cross coupling.
Preferably, described transmission long axis input end is equipped with adpting flange, and described adpting flange is connected with described back shroud by female connector.
Preferably, described the first Small taper gear two ends are by the first selfaligning roller bearing and the supporting of the second selfaligning roller bearing; The first self-aligning thrust roller bearing is installed on described transmission long axis.
Preferably, described the second Small taper gear two ends are by the 3rd selfaligning roller bearing and the supporting of the 4th selfaligning roller bearing; On described transmission minor axis, the second self-aligning thrust roller bearing is installed.
Preferably, described steep-taper gear two ends are by the first tapered roller bearing and the supporting of the second tapered roller bearing.
compared with prior art, co-rotating conical twin-screw extruder distribution gear case provided by the utility model, it comprises jack shaft, described transmission long axis is connected by the hole axle and the first Small taper gear is equipped with in the flat key connection, described transmission minor axis is connected by the hole axle and the second Small taper gear is equipped with in the flat key connection, described jack shaft is connected by the hole axle and the steep-taper gear is equipped with in the flat key connection, steep-taper gear on described jack shaft and the first Small taper gear on described transmission long axis, the second Small taper gear on described transmission minor axis is meshed, leave the gap between described the first Small taper gear top circle and described the second Small taper gear top circle.
when transmission long axis rotates under extraneous input torque effect, drive by the first Small taper gear mounted thereto the steep-taper gear that is arranged on jack shaft and rotate, thereby moment of torsion is passed to jack shaft, drive the jack shaft rotation, in the jack shaft rotary course, the second Small taper gear that is arranged on the transmission minor axis by the steep-taper gear driven that is mounted thereon rotates, thereby moment of torsion is passed to the transmission minor axis, owing to driving jack shaft by transmission long axis, drive the transmission minor axis by jack shaft, transmission long axis and transmission minor axis mesh transmitting torque simultaneously by Small taper gear and jack shaft steep-taper gear, thereby make transmission long axis and transmission minor axis output power in the same way, and to the equidirectional moment of torsion of conical screw output, like this, be adapted as by incorgruous conical double screw extruder in the process of co-rotating conical twin-screw extruder, extruder miscellaneous part for distribution gear case input end and output terminal need not be changed, only need to change the distribution gear case, therefore, in retrofit process, change little and expense is low.
described the first Small taper gear, the second Small taper gear and steep-taper gear are the very little taper gears of a kind of reference cone angle, the taper gear transmission is a kind of approximate circle Column gear transmission along the continuous displacement of axis and change transverse tooth thickness, its addendum modification and transverse tooth thickness are nonlinear along the change of Gear axis, design by having three pyramidal faces, steep-taper gear and the first Small taper gear, the second Small taper gear is meshed, gear teeth backlash is identical, due to the first Small taper gear top circle, leave the gap between the second Small taper gear top circle, do not participate in engagement, like this, transmission efficiency is high, noise is little.
In mode of execution further preferably, described transmission long axis output terminal is connected with the first sliding cross coupling; Transmission minor axis output terminal is connected with the second sliding cross coupling.
Because sliding cross coupling has advantages of simple in structure, high moment of torsion, high rigidity, high sensitivity and allows larger radial and axial deviation, transmission long axis is connected output terminal and is connected with screw rod by sliding cross coupling with the transmission minor axis, can absorb larger transmission torsion, long service life and performance safety are reliable.
In mode of execution further preferably, described the first Small taper gear two ends are by the first selfaligning roller bearing and the supporting of the second selfaligning roller bearing; The first self-aligning thrust roller bearing is installed on described transmission long axis; Described the second Small taper gear two ends are by the 3rd selfaligning roller bearing and the supporting of the 4th selfaligning roller bearing; On described transmission minor axis, the second self-aligning thrust roller bearing is installed; Described steep-taper gear two ends are by the first tapered roller bearing and the supporting of the second tapered roller bearing.
Due to, tapered roller bearing is particularly suitable for bearing, and compound (radially with axial) loads, and bearing capacity is larger, therefore, supports the steep-taper gear by tapered roller bearing, is conducive to guarantee the stability of steep-taper gear transmission moment of torsion; And support the first Small taper gear and the second Small taper gear by selfaligning roller bearing, and can play the effect of aligning, allow to exist radial deflection, be conducive to gear-driven stability.
Description of drawings
Fig. 1 is a kind of embodiment's of a kind of co-rotating conical twin-screw extruder distribution gear case that the utility model proposes structural representation;
Fig. 2 is a kind of embodiment's of a kind of co-rotating conical twin-screw extruder distribution gear case that the utility model proposes partial structurtes schematic diagram;
Fig. 3 is that the K of co-rotating conical twin-screw extruder distribution gear case embodiment in Fig. 1 is to view.
Embodiment
The purpose of this utility model is to provide a kind of co-rotating conical twin-screw extruder distribution gear case.
In order to make those skilled in the art understand better the technical solution of the utility model; below in conjunction with accompanying drawing, the utility model is described in detail; the description of this part is only exemplary and explanatory, should any restriction not arranged to protection domain of the present utility model.
Please refer to Fig. 1, and in conjunction with Fig. 2 and Fig. 3, in one embodiment, a kind of co-rotating conical twin-screw extruder distribution gear case provided by the utility model, comprise casing 15, bonnet 9, coupling sleeve 2, flange 5, locking nut 1, transmission long axis 13, transmission minor axis 14, jack shaft 19, be connected by the hole axle on transmission long axis 13 and flat key connects 1 Small taper gear 7 is housed, Small taper gear 7 two ends are by selfaligning roller bearing 6 and selfaligning roller bearing 8 supportings, and self-aligning thrust roller bearing 11 bears the end thrust on transmission long axis.The transmission long axis input end is equipped with adpting flange 12, female connector 10.Transmission long axis 13 output terminals are equipped with two coupling 3, coupling 3 connects with crosshead shoe 4 two ends projections respectively by groove, the coupling 3 of outermost end is connected with screw rod by rectangular spline, and input shaft transmission long axis 13 and extruder wherein a screw coaxial drive the screw rod rotary work.Be connected by the hole axle on transmission minor axis 14 and flat key connects another part Small taper gear 7 is housed, this Small taper gear 7 two ends are by selfaligning roller bearing 6 and selfaligning roller bearing 8 supportings, and self-aligning thrust roller bearing 16 bears the end thrust of transmission minor axis.Transmission minor axis 14 output terminals are equipped with two coupling 3, these two coupling 3 are connected with crosshead shoe 4 two ends projections respectively by groove, the coupling 3 of outermost end is connected with screw rod by rectangular spline, thereby transmission minor axis 14 can drive another root screw rod rotary work.Be connected by the hole axle on jack shaft 19 and flat key connects steep-taper gear 18 is housed, steep-taper gear 18 two ends are by 20 supportings of two measure-alike tapered roller bearings.
The plane of being determined by transmission long axis 13 axis and jack shaft 19 axis, the plane of being determined by transmission minor axis 14 axis and jack shaft 19 axis and consist of three taper planes by transmission long axis 13 axis and transmission minor axis 14 axis definite planes, three taper Plane intersects are in a bit.The steep-taper gear 18 that Small taper gear 7 on transmission long axis 13 drives on jack shaft 19 rotates, and then is rotated by the Small taper gear 7 on the steep-taper gear 18 drive transmission minor axises 14 on jack shaft 19, and transmission long axis 13 is identical with transmission minor axis 14 rotation directions.Leave the gap between Small taper gear 7 on transmission long axis 13 and Small taper gear 7 top circles on the transmission minor axis, do not mesh each other.
need to prove, in this article, relational terms such as the first and second grades only is used for an entity or operation and another entity or control panel are separated, and not necessarily require or hint these entities or the operation between exist any this reality relation or the order, and, term " comprises ", " comprise " or its any other variant is intended to contain comprising of nonexcludability, thereby make the process that comprises a series of key elements, method, which key element article or equipment not only comprise, but also comprise other key elements of clearly not listing, or also be included as this process, method, the key element that article or equipment are intrinsic.In the situation that not more restrictions, the key element that is limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises key element and also have other identical element.
Used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof.The above is only preferred implementation of the present utility model, should be understood that, finiteness due to literal expression, and objectively there is unlimited concrete structure, for those skilled in the art, under the prerequisite that does not break away from the utility model principle, can also make some improvement, retouching or variation, also above-mentioned technical characteristics can be made up by rights; These improve retouching, change or combination, or without improving, the design of model utility and technological scheme are directly applied to other occasion, all should be considered as protection domain of the present utility model.

Claims (9)

1. a co-rotating conical twin-screw extruder distribution gear case, comprise casing, back shroud, coupling sleeve, flange, locking nut, transmission long axis, transmission minor axis, described casing one side is connected with described coupling sleeve by described flange, and described coupling sleeve opposite side is connected with described locking nut, described transmission long axis is installed in described casing, and its output terminal extends in described coupling sleeve, in described transmission long axis input end one side, described casing is connected with described back shroud, it is characterized in that, also comprise jack shaft, described transmission long axis is connected by the hole axle and the first Small taper gear is equipped with in the flat key connection, described transmission minor axis is connected by the hole axle and the second Small taper gear is equipped with in the flat key connection, described jack shaft is connected by the hole axle and the steep-taper gear is equipped with in the flat key connection, steep-taper gear on described jack shaft and the first Small taper gear on described transmission long axis, the second Small taper gear on described transmission minor axis is meshed, leave the gap between described the first Small taper gear top circle and described the second Small taper gear top circle.
2. co-rotating conical twin-screw extruder distribution gear case as claimed in claim 1, it is characterized in that, described transmission long axis axis, described transmission minor axis axis and described jack shaft axes intersect are in a bit, and described transmission long axis axis and described jack shaft axis are determined the first plane; Described transmission minor axis axis and described jack shaft axis are determined the second plane; Described transmission long axis axis and transmission minor axis axis are determined the 3rd plane.
3. co-rotating conical twin-screw extruder distribution gear case as claimed in claim 1, it is characterized in that, described the first Small taper gear, the second Small taper gear and steep-taper gear are the very little taper gears of a kind of reference cone angle, the taper gear transmission is a kind of approximate circle Column gear transmission along the continuous displacement of Gear axis and change transverse tooth thickness, and it is nonlinear along Gear axis that its addendum modification and transverse tooth thickness change.
4. co-rotating conical twin-screw extruder distribution gear case as claimed in claim 1, is characterized in that, described transmission long axis output terminal is connected with the first sliding cross coupling.
5. co-rotating conical twin-screw extruder distribution gear case as claimed in claim 1, is characterized in that, described transmission minor axis output terminal is connected with the second sliding cross coupling.
6. co-rotating conical twin-screw extruder distribution gear case as claimed in claim 1, is characterized in that, described transmission long axis input end is equipped with adpting flange, and described adpting flange is connected with described back shroud by female connector.
7. co-rotating conical twin-screw extruder distribution gear case as claimed in claim 1, is characterized in that, described the first Small taper gear two ends are by the first selfaligning roller bearing and the supporting of the second selfaligning roller bearing; The first self-aligning thrust roller bearing is installed on described transmission long axis.
8. co-rotating conical twin-screw extruder distribution gear case as claimed in claim 1, is characterized in that, described the second Small taper gear two ends are by the 3rd selfaligning roller bearing and the supporting of the 4th selfaligning roller bearing; On described transmission minor axis, the second self-aligning thrust roller bearing is installed.
9. co-rotating conical twin-screw extruder distribution gear case as claimed in claim 1, is characterized in that, described steep-taper gear two ends are by the first tapered roller bearing and the supporting of the second tapered roller bearing.
CN2012206583170U 2012-12-04 2012-12-04 Distribution gear box of homo-directional conical dual-screw extruder Expired - Fee Related CN203023447U (en)

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CN2012206583170U CN203023447U (en) 2012-12-04 2012-12-04 Distribution gear box of homo-directional conical dual-screw extruder

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Application Number Priority Date Filing Date Title
CN2012206583170U CN203023447U (en) 2012-12-04 2012-12-04 Distribution gear box of homo-directional conical dual-screw extruder

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103016691A (en) * 2012-12-04 2013-04-03 长沙联力实业有限公司 Distribution gear case of homodromous tapered double-screw extruder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103016691A (en) * 2012-12-04 2013-04-03 长沙联力实业有限公司 Distribution gear case of homodromous tapered double-screw extruder
CN103016691B (en) * 2012-12-04 2016-03-30 长沙联力实业有限公司 A kind of co-rotating conical twin-screw extruder distribution gear case

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130626

Termination date: 20161204

CF01 Termination of patent right due to non-payment of annual fee