CN104110469B - Air-cooled plastic extruder hypocycloid reduction box - Google Patents
Air-cooled plastic extruder hypocycloid reduction box Download PDFInfo
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- CN104110469B CN104110469B CN201410284945.0A CN201410284945A CN104110469B CN 104110469 B CN104110469 B CN 104110469B CN 201410284945 A CN201410284945 A CN 201410284945A CN 104110469 B CN104110469 B CN 104110469B
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- casing
- cylinder
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- bearing
- hypocycloid
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/252—Drive or actuation means; Transmission means; Screw supporting means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
- F16H57/0416—Air cooling or ventilation
Abstract
The present invention relates to plastic extruder special retarding technical field, a kind of air-cooled plastic extruder hypocycloid reduction box, including casing and the hypocycloid driving member that is placed in casing, it is characterized in that: body side is equipped with an axial fan F, the ventilation window P that casing top can regulate equipped with an exhaust air rate；Built-in cylinder is placed in casing, and its flange couples with casing, forms air-flow cavity between cylinder outer surface and casing, and built-in cylinder couples cylinder end cap, cylinder end cap input cylindrical and casing input endoporus close-fitting, couples with same circle ring disk；Hypocycloid gear ring is fastened on built-in cylinder endoporus.Beneficial effect: hypocycloid gear ring and cycloidal gear teeth do not exist stress concentration point in theory, thus cycloid never broken teeth, overload capacity are big；Gear Planet Transmission casing is less than the weight of dead axle transmission several times in theory, and calculating shows: lightweight 50 60%；Air-cooled structure is simple, and reliability is high, low cost of manufacture.
Description
[technical field]
The present invention relates to plastic extruder special retarding technical field, be the improvement of prior art ZLYJ type parallel axis hard-tooth surface Special reducer for plastic extruder, a kind of air-cooled plastic extruder hypocycloid reduction box.
[background technology]
Prior art ZLYJ plastic speed reducer special for extruder, it is that ZLY type two-stage parallel axis universal teeth wheel decelerator arranges thrust bearing, in order to bear the improvement type of plastics machine screw rod axial force, be largest domestic reductor private enterprise Guo Mao reductor group in the 2010.6 leading special reduction gear products released, company claims: " ZLYJ plastic speed reducer special for extruder has that volume is little, bearing capacity is high, stable drive, noise are low, efficiency high." add up according to reductor industry sources, ZLYJ plastic speed reducer special for extruder, it is that existing domestic market occupancy volume is maximum, copys one of most special reduction gear product of producer.
Research finds, ZLYJ plastic speed reducer special for extruder exists following two large problems:
(1) screw rod in the plastic barrel that reductor front end couples is in the condition of high temperature, and in causing decelerating chassis, oil temperature constantly rises, thus must arrange the oil circulation chiller of pressure, so that adds additional manufacturing cost and adding complete machine weight；
(2) light weight degree of the driving of parallel axes is lower than Gear Planet Transmission, and Gear Planet Transmission includes NGW planet and the big class of few teeth difference (involute and cycloid) two.The theoretical explanation that Gear Planet Transmission light weight degree is high see following authority monograph:
(1) " gear handbook " (1-4 page): " Gear Planet Transmission instead of a collection of parallel axes structure driven form; this is because Gear Planet Transmission uses several planetary gears simultaneously transfer charge; and make use of the combining form of internal messing, thus there is the advantages such as bearing capacity is high, volume is little, lightweight, efficiency is high, noise is little.”
(2) Zhu Xiaolu " Gear Transmission Design handbook " page 660: " Gear Planet Transmission compared with fixed shaft gear train, have that volume is little, lightweight, gear range is big, efficiency is high and the advantage such as stable working.Gear Planet Transmission instead of a collection of parallel axes structure driven form, this is because Gear Planet Transmission uses several planetary gears simultaneously transfer charge, and make use of the combining form of internal messing, thus has the advantages such as bearing capacity is high, volume is little, lightweight, efficiency is high, noise is little.”
[summary of the invention]
The object of the invention provides axial flow blower air-cooled replacement prior art forced oil cooling device to reduce manufacturing cost, to replace the ZLYJ driving of parallel axes with hypocycloid transmission to improve the bearing capacity of reduction box, a kind of air-cooled plastic extruder hypocycloid deceleration device.
For achieving the above object, its technology implementation scheme and theoretical foundation thereof are as follows:
The present invention based on modern hypocycloid (also known as double cycloid) transmission, the common knowledge such as combined axis flow type fan strength heat radiation, constitute the claim that the present invention is required for protection.
The theoretical foundation of axial flow blower cooling technology: " Gear Transmission Design handbook " page 972 is pointed out: " planetary reducer relative volume and surface radiating area greatly reduce; owing to equilibrium temperature is the highest; bearing capacity is heated Power Limitation ... take supplement heat rejecter heat abstractor to improve thermal power.”
Research and analyse thermal power correction formula P=Bref·BV·BA·BT·PQ(kW) (in formula: Bref、BV、BAAnd BTIt is respectively an ambient temperature, air velocity, height above sea level and the highest oil temperature correction factor) (" Gear Transmission Design handbook " page 979) discovery: improving the most effective technical scheme of decelerator thermal power is to increase air-flow velocity, this is because: as air velocity v >=3.8m/s, correction factor BV=1.90, than B during v=0.5～1.4m/sV=1.0 improve by about one time, that is thermal power P is doubled.It is investigated: the 145FZY profile shaft flow fan air quantity 330m of Shanghai Guo Heng Motor Corporation3/ hr., 150FZY profile shaft flow fan air quantity 459m3/ hr., is computed wind speed and is respectively 5.55m/s and 7.6m/s, wind speed all >=3.8m/s.
" the feature of (double) cycloidal equidistance curve gear: double cycloid engages；In the face contact of near nodal approximation；Bag oil pocket is formed between flank profil.Compared with existing Cycloidal pin-wheel drive, (1) double cycloid efficiency more than 93%；(2) double cycloid bearing capacity is high by about 50%." (see: paper " development of cycloidal equidistance curve gear " China Textile University journal Vol.15No.2,1989, Li Kezhi, Shen Peiji) Theoretical Calculation shows, hypocycloid bearing capacity and B-6000 type partly bury tooth cycloid σjmax=(8914/Rz){Y1max T2/b}0.5Close, and B-6000 type bearing capacity calculation is well known to those skilled in the art, and is therefore regarded as the approximate calculation of hypocycloid bearing capacity.
Attached: B-6000 type partly buries tooth cycloid and prior art ZLYJ type speed reducer profile and weight comparison sheet
The technological means implemented:
Described body side is equipped with an axial fan F, and casing top is equipped with a ventilation window P；
Coupling built-in cylinder flange on the end face of described casing outfan, the one of described built-in cylindrical band radiating ribs is placed in casing and is formed between casing air-flow cooling cavity, and the opposite side that it is placed in outside casing couples plastic extruder urceolus；
Described built-in cylinder input end face couples cylinder end cap, the input cylindrical of described cylinder end cap and casing input endoporus close-fitting, described cylinder end cap input end face couples with same circle ring disk with the nose circle face of casing input, so that built-in cylinder is in the freely supported structure of two-side supporting；
Described hypocycloid gear ring is fastened on the input endoporus of built-in cylinder.
The each independent technical characteristic of [beneficial effect] present invention is completely known, and supports each other, can produce following Advantageous Effects known to those skilled in the art, because this is actually Gear Planet Transmission compares produced technique effect with the driving of parallel axes:
(1) there is not stress concentration point in the hypocycloid gear teeth in theory, thus cycloid never broken teeth, overload capacity are big；
(2) calculating shows: lightweight 50-60%；(3) air cooling structure is simple, and reliability is high, low cost of manufacture.
[accompanying drawing explanation]
Fig. 1. embodiment of the present invention structural representation
Fig. 2. embodiment of the present invention casing 1. sets the structural representation of axial fan F and ventilation window P
The present invention is encyclopaedized by [detailed description of the invention] below in conjunction with the accompanying drawings:
nullWith reference to Fig. 1. a kind of air-cooled plastic extruder hypocycloid reduction box，Including casing 1 and the hypocycloid driving member that is placed in casing，Described hypocycloid driving member includes built-in cylinder 2、Cycloidal Wheel 12、Hypocycloid gear ring 10、Power shaft 16、Capacity eccentric bearing 14 and w output mechanism on power shaft 16，Described w output mechanism includes pin 11 and output shaft 8、Described output shaft 8 clutch shaft bearing 3 is bearing in built-in cylinder 2 outfan endoporus，It is provided with bearing block 7 before described clutch shaft bearing 3，Described bearing block 7 endoporus coordinates with the outer ring of thrust roller bearing 4，The inner ring end face outside of described thrust roller bearing 4 is spacing by thrust cylinder 5，Described thrust cylinder 5 is enclosed within output shaft 8，Described thrust cylinder 5 axial spacing by circular ring cover 6，Sequentially coupling spindle bearing 7 and circular ring cover 6 on described built-in cylinder 2 output end face，Described output shaft 8 endoporus couples the afterbody of screw of plastic extruder，Described power shaft 16 is bearing in cylinder end cap 13 endoporus with the second bearing 14，It is characterized in that:
Described casing 1 side can regulate equipped with a ventilation window P, the exhaust air rate of described ventilation window P equipped with an axial fan F, casing 1 top, to reach optimal air discharging and radiating effect；
Built-in cylinder 2 flange is coupled on the end face of described casing 1 outfan, the one of described built-in cylinder 2 band radiating ribs is placed in casing 1 and is formed between casing air-flow cooling cavity, the opposite side that it is placed in outside casing 1 couples plastic extruder urceolus, cool down the temperature rise of driving member in built-in cylinder 2 with air blast, have the technical effect that simple in construction, low cost and temperature control are reliable；
Described built-in cylinder 2 input end face couples cylinder end cap 12, the input cylindrical of described cylinder end cap 12 and casing 1 input endoporus close-fitting, described cylinder end cap 12 input end face couples with same circle ring disk 16 with the nose circle face of casing 1 input, so that built-in cylinder 2 is in the freely supported structure of two-side supporting；
Described hypocycloid gear ring 10 is fastened on the input endoporus of built-in cylinder 2, makes active force be pointing directly at casing footing without producing tilting moment.
Above-described embodiment is the description of the invention, is not limitation of the invention, any scheme after simple transformation of the present invention is belonged to protection scope of the present invention.
Claims (1)
1. an air-cooled plastic extruder hypocycloid reduction box, including the hypocycloid driving member in casing (1) and casing, institute
State hypocycloid driving member and include built-in cylinder (2), Cycloidal Wheel (12), hypocycloid gear ring (10), power shaft (16), power shaft
(16) capacity eccentric bearing (14) on and w output mechanism, described w output mechanism includes pin (11) and output shaft (8),
Described output shaft (8) clutch shaft bearing (3) is bearing in built-in cylinder (2) outfan endoporus, described clutch shaft bearing (3) it
Before be provided with bearing block (7), described bearing block (7) endoporus coordinates with the outer ring of thrust roller bearing (4), described thrust roller
The inner ring end face outside of bearing (4) is spacing by thrust cylinder (5), and described thrust cylinder (5) is enclosed within output shaft (8),
Described thrust cylinder (5) axial spacing by circular ring cover (6), the end face of described built-in cylinder (2) outfan sequentially couples
Bearing block (7) and circular ring cover (6), described output shaft (8) endoporus couples the afterbody of screw of plastic extruder, described power shaft
(16) it is bearing in cylinder end cap (13) endoporus with the second bearing (15), it is characterised in that:
Described casing (1) side is equipped with an axial fan (F), and casing (1) top is equipped with a ventilation window (P), described row
The exhaust air rate of air regulator (P) can regulate；
Built-in cylinder (2) flange, described built-in cylinder (2) band radiating ribs one is coupled on the end face of described casing (1) outfan
Being placed in casing (1) and formed between casing air-flow cooling cavity, it is placed in casing (1) opposite side outward in order to couple plastics
The urceolus of extruder；
Described built-in cylinder (2) input end face couples cylinder end cap (13), the input cylindrical of described cylinder end cap (13)
Use with the nose circle face of casing (1) input endoporus close-fitting, described cylinder end cap (13) input end face and casing (1) input
Same circle ring disk (17) couples；
Described hypocycloid gear ring (10) is fastened on the input endoporus of built-in cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410284945.0A CN104110469B (en) | 2014-06-15 | 2014-06-15 | Air-cooled plastic extruder hypocycloid reduction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410284945.0A CN104110469B (en) | 2014-06-15 | 2014-06-15 | Air-cooled plastic extruder hypocycloid reduction box |
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| Publication Number | Publication Date |
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| CN104110469A CN104110469A (en) | 2014-10-22 |
| CN104110469B true CN104110469B (en) | 2016-09-14 |
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| CN201410284945.0A Active CN104110469B (en) | 2014-06-15 | 2014-06-15 | Air-cooled plastic extruder hypocycloid reduction box |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565222B (en) * | 2015-01-02 | 2017-05-03 | 李响 | Interlayer body zero-return-difference type general inner cycloidal reduction box |
| CN104565309B (en) * | 2015-01-02 | 2017-05-17 | 李响 | Interlayer body zero-return-difference type general small-tooth-difference reduction box |
| CN104565221B (en) * | 2015-01-02 | 2017-05-03 | 李响 | Interlayer body zero-return-difference type general cycloidal reduction box |
| CN105570391A (en) * | 2016-03-07 | 2016-05-11 | 东莞市富宝机电科技有限公司 | Conjugated speed reduction transmission mechanism |
| CN112096627A (en) * | 2020-09-25 | 2020-12-18 | 台州市杰龙风机厂 | Low-loss axial flow fan |
Citations (10)
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|---|---|---|---|---|
| CN2169727Y (en) * | 1993-09-10 | 1994-06-22 | 马云成 | Roll driving device containing wind cool motor and radially arranged gear speed reducer |
| CN2415209Y (en) * | 1999-11-23 | 2001-01-17 | 陶刚 | Jacket water-cooled continuous casting withdrawal straightening machine speed reducer |
| CN200995228Y (en) * | 2006-12-21 | 2007-12-26 | 中国第一重型机械集团公司 | Water-cooling gearbox body of rolling-machine frame roller |
| CN201007344Y (en) * | 2007-04-18 | 2008-01-16 | 穆诗智 | Decelerator |
| CN201925455U (en) * | 2010-12-07 | 2011-08-10 | 张建定 | Gear box with cooling mechanism |
| CN102269239A (en) * | 2011-04-02 | 2011-12-07 | 吴小杰 | Novel horizontal type dynamic balance reducer without needle sleeve and cycloid |
| EP2395263A1 (en) * | 2010-06-09 | 2011-12-14 | ZF Friedrichshafen AG | Vehicle transmission |
| CN202215720U (en) * | 2011-09-16 | 2012-05-09 | 江苏凯博传动设备有限公司 | Speed reducer with cooling mechanism |
| CN202371132U (en) * | 2011-12-20 | 2012-08-08 | 上海创力集团股份有限公司 | Water-cooled cutting reducer for development machine |
| CN203500440U (en) * | 2013-09-27 | 2014-03-26 | 南车戚墅堰机车车辆工艺研究所有限公司 | Water-cooled reducer shell |
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2014
- 2014-06-15 CN CN201410284945.0A patent/CN104110469B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2169727Y (en) * | 1993-09-10 | 1994-06-22 | 马云成 | Roll driving device containing wind cool motor and radially arranged gear speed reducer |
| CN2415209Y (en) * | 1999-11-23 | 2001-01-17 | 陶刚 | Jacket water-cooled continuous casting withdrawal straightening machine speed reducer |
| CN200995228Y (en) * | 2006-12-21 | 2007-12-26 | 中国第一重型机械集团公司 | Water-cooling gearbox body of rolling-machine frame roller |
| CN201007344Y (en) * | 2007-04-18 | 2008-01-16 | 穆诗智 | Decelerator |
| EP2395263A1 (en) * | 2010-06-09 | 2011-12-14 | ZF Friedrichshafen AG | Vehicle transmission |
| CN201925455U (en) * | 2010-12-07 | 2011-08-10 | 张建定 | Gear box with cooling mechanism |
| CN102269239A (en) * | 2011-04-02 | 2011-12-07 | 吴小杰 | Novel horizontal type dynamic balance reducer without needle sleeve and cycloid |
| CN202215720U (en) * | 2011-09-16 | 2012-05-09 | 江苏凯博传动设备有限公司 | Speed reducer with cooling mechanism |
| CN202371132U (en) * | 2011-12-20 | 2012-08-08 | 上海创力集团股份有限公司 | Water-cooled cutting reducer for development machine |
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| Publication number | Publication date |
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| CN104110469A (en) | 2014-10-22 |
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Inventor after: Lian Bing Inventor before: Wu Shengzhen |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170914 Address after: 519185 Guangdong Province, Zhuhai city Doumen District Baijiao Town New Village Industrial Zone Patentee after: Zhuhai City Wanlin packing material Co. Ltd Address before: Whitehead street in Zhejiang County of Pingyang Province town of Kunyang 325400 Building No. 4 room 761 Patentee before: Wu Xiaojie |