CN104110469A - Hypocycloid reduction gearbox of air-cooled plastic extrusion machine - Google Patents
Hypocycloid reduction gearbox of air-cooled plastic extrusion machine Download PDFInfo
- Publication number
- CN104110469A CN104110469A CN201410284945.0A CN201410284945A CN104110469A CN 104110469 A CN104110469 A CN 104110469A CN 201410284945 A CN201410284945 A CN 201410284945A CN 104110469 A CN104110469 A CN 104110469A
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- China
- Prior art keywords
- cylinder
- air
- hypocycloid
- casing
- box body
- 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.)
- Granted
Links
- 229920003023 plastic Polymers 0.000 title claims abstract description 24
- 239000004033 plastic Substances 0.000 title claims abstract description 24
- 230000009467 reduction Effects 0.000 title abstract description 8
- 238000001125 extrusion Methods 0.000 title abstract 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 18
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000004364 calculation method Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 102000003712 Complement factor B Human genes 0.000 description 1
- 108090000056 Complement factor B Proteins 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention relates to the technical field of speed reduction special for plastic extrusion machines and discloses a hypocycloid reduction gearbox of an air-cooled plastic extrusion machine. The hypocycloid reduction gearbox of the air-cooled plastic extrusion machine comprises a box body and a hypocycloid transmission part arranged in the box body and is characterized in that an axle flow fan F is installed on the side face of the box body, an air exhausting window P with adjustable air flow is installed at the top of the box body, an internally-arranged cylinder is arranged in the box body, a flange of the internally-arranged cylinder is connected with the box body, an air flow cavity is formed between the outer surface of the cylinder and the box body, the internally-arranged cylinder is connected with a cylinder end cover, the outer circle of the input end of the cylinder end cover is tightly matched with an inner hole of the input end of the box body, and the outer circle of the input end of the cylinder end cover and the inner hole of the input end of the box body are connected through an annular disc; a hypocycloid gear ring is tightly fastened to an inner hole of the internally-arranged cylinder. The hypocycloid reduction gearbox of the air-cooled plastic extrusion machine has the advantages that theoretically, a focal point of stress of the hypocycloid gear ring and cycloid gear teeth is avoided, so that tooth breakage of a cycloid curve is avoided and the overlaid capacity is large; theoretically, the weight of the planetary transmission box body is smaller than that of a dead shaft for transmission by a plurality of times, and calculation shows that the weight is reduced by 50% to 60%; the air-cooled structure is simple and the hypocycloid reduction gearbox of the air-cooled plastic extrusion machine is high in reliability and low in manufacturing cost.
Description
[technical field]
The present invention relates to plastic extruder special retarding technical field, is 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 speed reducer.
[background technique]
Prior art ZLYJ plastic speed reducer special for extruder, be ZLY type two-stage parallel axis universal teeth wheel decelerator thrust-bearing is set, in order to bear the improvement type of plastics machine screw axial power, be the largest domestic speed reducer Guo Mao of private enterprise speed reducer group in the leading special reduction gear product of 2010.6 releases, 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." according to speed reducer industry statistics, ZLYJ plastic speed reducer special for extruder is the existing Domestic market Accounting amount of having maximum, copy one of special reduction gear product that producer is maximum.
Research discovery, there is following two large problems in ZLYJ plastic speed reducer special for extruder:
(1) screw rod in the plastic barrel that speed reducer front end connects, in the condition of high temperature, causes oil temperature in decelerating chassis constantly to rise, thereby the oily circulating cooler of pressure must be set, so that additionally increased manufacture cost and increased complete machine weight;
(2) the lightweight degree of the driving of parallel axes is lower than Gear Planet Transmission, and Gear Planet Transmission comprises NGW planet and the large class of few teeth difference (involute and cycloid) two.The theoretical explanation that Gear Planet Transmission lightweight degree is high sees following authoritative monograph:
(1) " gear handbook " (1-4 page): " Gear Planet Transmission has substituted a collection of parallel axes structure driven form; this is because Gear Planet Transmission adopts several planet wheels transfer charges simultaneously; and utilized the combining form of interior engagement, thereby there is the advantages such as bearing capacity is high, volume is little, lightweight, efficiency is high, noise is little.”
(2) 660 pages of Zhu Xiaolu " Gear Transmission Design handbook ": " Gear Planet Transmission compared with fixed shaft gear train, have that volume is little, lightweight, gear range is large, efficiency is high and the advantage such as stable working.Gear Planet Transmission has substituted a collection of parallel axes structure driven form, this is because Gear Planet Transmission adopts several planet wheels transfer charge simultaneously, and utilized the combining form of interior engagement, thereby there is 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 the air-cooled alternative prior art forced oil cooling device of axial-flow blower to reduce manufacture cost, to use hypocycloid transmission to replace the ZLYJ driving of parallel axes to improve bearing capacity, a kind of air-cooled plastic extruder hypocycloid speed reducer of speed reducer.
For achieving the above object, its implementer's case and theoretical foundation thereof are as follows:
The present invention is taking modern hypocycloid (claiming again double cycloid) transmission as basis, and the common practise such as the powerful heat radiation of combined axis flow type fan, have formed the present invention's claim required for protection.
The theoretical foundation of axial-flow blower cooling technology: " Gear Transmission Design handbook " 972 pages pointed out: " plane table thermoconductivity meter relative volume and surface radiating area greatly reduce; because temperature of equilibrium is still very high; the bearing capacity Power Limitation of being heated ... take auxiliary cooling heat radiator to improve thermal power.”
Research and analyse thermal power correction formula P=B
refb
vb
ab
tp
q(kW) (in formula: B
ref, B
v, B
aand B
tbe respectively an ambient temperature, air velocity, altitude and the highest oil temperature correction factor) (" Gear Transmission Design handbook " 979 pages) find: improving the effective technology scheme of retarder thermal power is to increase air-flow velocity, this be because: in the time of air velocity v>=3.8m/s, correction factor B
v=1.90, B during than v=0.5～1.4m/s
v=1.0 have improved nearly one times, that is thermal power P is doubled.It is investigated: the 145FZY profile shaft flow fan air quantity 330m of Shanghai Guo Heng motor company
3/ hr., 150FZY profile shaft flow fan air quantity 459m
3/ hr., wind speed is respectively 5.55m/s and 7.6m/s as calculated, wind speed all>=3.8m/s.
" the feature of (two) cycloidal equidistance curve gear: double cycloid engagement; Near approximate face contact node; Between flank profil, form bag oil pocket.Compared with existing cycloidal-pin wheel transmission, (1) double cycloid efficiency is more than 93%; (2) high 50% left and right of double cycloid bearing capacity." (see: paper " development of cycloidal equidistance curve gear " the journal Vol.15No.2 of China Textile University, 1989, Li Kezhi, Shen Peiji) theoretical calculating show, hypocycloid bearing capacity and B-6000 type partly bury tooth cycloid σ
jmax=(8914/R
z) { Y
1maxt
2/ 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 calculus of approximation 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 of implementing:
An axial fan F is equipped with in described casing side, and an air outlet window P is equipped with at casing top;
On the end face of described casing output terminal, connect built-in cylinder flange, a side of described built-in cylinder band radiating fin forms the cooling cavity of air-flow in casing and between casing, and its opposite side being placed in outside casing connects plastic extruder urceolus;
Described built-in cylinder input end end face connects cylinder end cap, the input end cylindrical of described cylinder end cap and casing input end endoporus close-fitting, described cylinder end cap input end face connects with same circle ring disk with the nose circle face of casing input end, thereby makes the freely supported structure of built-in cylinder in two-side supporting;
Described hypocycloid gear ring is fastened on the input end endoporus of built-in cylinder.
The each independent technical characteristics of [beneficial effect] the present invention is completely known, and supports each other, can produce following useful technique effect known to those skilled in the art, because this is actually the technique effect that Gear Planet Transmission and driving of parallel axes comparison produce:
(1) there is not stress concentration point in the hypocycloid gear teeth in theory, thus cycloid never broken teeth, overload capacity are large;
(2) calculate and show: lightweight 50-60%; (3) air cooling structure is simple, and reliability is high, low cost of manufacture.
[brief description of the drawings]
Fig. 1. embodiment of the present invention structural representation
Fig. 2. embodiment of the present invention casing 1. is established the structural representation of axial fan F and air outlet window P
[embodiment] encyclopaedizes the present invention below in conjunction with accompanying drawing:
With reference to Fig. 1. a kind of air-cooled plastic extruder hypocycloid speed reducer, comprise casing 1 and be placed in the hypocycloid driving component in casing, described hypocycloid driving component comprises built-in cylinder 2, cycloid wheel 12, hypocycloid gear ring 10, input shaft 16, capacity eccentric bearing 14 on input shaft 16 and w output mechanism, described w output mechanism comprises pin 11 and output shaft 8, described output shaft 8 use clutch shaft bearings 3 are bearing in built-in cylinder 2 output terminal endoporus, before described clutch shaft bearing 3, be provided with bearing support 7, described bearing support 7 endoporus coordinate with the outer ring of thrust roller bearing 4, outside the inner ring of described thrust roller bearing 4, end face is spacing by thrust cylinder 5, described thrust cylinder 5 is enclosed within on output shaft 8, described thrust cylinder 5 axially spacing by circular ring cover 6, joining shaft bearing 7 and circular ring cover 6 in turn on described built-in cylinder 2 output end faces, described output shaft 8 endoporus connect the afterbody of screw of plastic extruder, described input shaft 16 use the second bearings 14 are bearing in cylinder end cap 13 endoporus, it is characterized in that:
An axial fan F is equipped with in described casing 1 side, and an air outlet window P is equipped with at casing 1 top, and the exhaust air rate of described air outlet window P can regulate, to reach best air discharging and radiating effect;
On the end face of described casing 1 output terminal, connect built-in cylinder 2 flanges, the side of described built-in cylinder 2 with radiating fin forms the cooling cavity of air-flow in casing 1 and between casing, its opposite side being placed in outside casing 1 connects plastic extruder urceolus, with the temperature rise of driving component in the cooling built-in cylinder 2 of air blast, technique effect be simple in structure, cost is low and temperature control is reliable;
Described built-in cylinder 2 input end end faces connect cylinder end cap 12, the input end cylindrical of described cylinder end cap 12 and casing 1 input end endoporus close-fitting, described cylinder end cap 12 input end faces connect with same circle ring disk 16 with the nose circle face of casing 1 input end, thereby make the freely supported structure of built-in cylinder 2 in two-side supporting;
Described hypocycloid gear ring 10 is fastened on the input end endoporus of built-in cylinder 2, makes active force directly point to casing footing and can not produce tilting moment.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, any scheme after simple transformation of the present invention is all belonged to protection scope of the present invention.
Claims (1)
1. an air-cooled plastic extruder hypocycloid speed reducer, comprise the hypocycloid driving component in casing (1) and casing, described hypocycloid driving component comprises built-in cylinder (2), cycloid wheel (12), hypocycloid gear ring (10), input shaft (16), capacity eccentric bearing (14) and w output mechanism on input shaft (16), described w output mechanism comprises pin (11) and output shaft (8), described output shaft (8) is bearing in built-in cylinder (2) output terminal endoporus with clutch shaft bearing (3), described clutch shaft bearing (3) is provided with bearing support (7) before, described bearing support (7) endoporus coordinates with the outer ring of thrust roller bearing (4), outside the inner ring of described thrust roller bearing (4), end face is spacing by thrust cylinder (5), described thrust cylinder (5) is enclosed within on output shaft (8), described thrust cylinder (5) axially spacing by circular ring cover (6), joining shaft bearing (7) and circular ring cover (6) in turn on the end face of described built-in cylinder (2) output terminal, described output shaft (8) endoporus connects the afterbody of screw of plastic extruder, described input shaft (16) is bearing in cylinder end cap (13) endoporus with the second bearing (15), it is characterized in that:
An axial fan (F) is equipped with in described casing (1) side, and an air outlet window (P) is equipped with at casing (1) top, and the exhaust air rate of described air outlet window (P) can regulate;
On the end face of described casing (1) output terminal, connect built-in cylinder (2) flange, described built-in cylinder (2) band radiating fin one side is in casing (1) and between casing, form the cooling cavity of air-flow, and it is placed in the outer opposite side of casing (1) in order to connect the urceolus of plastic extruder;
Described built-in cylinder (2) input end end face connects cylinder end cap (13), the input end cylindrical of described cylinder end cap (13) and casing (1) input end endoporus close-fitting, described cylinder end cap (13) input end face connects with the same circle ring disk for nose circle face (17) of casing (1) input end;
Described hypocycloid gear ring (10) is fastened on the input end 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104110469A true CN104110469A (en) | 2014-10-22 |
| CN104110469B CN104110469B (en) | 2016-09-14 |
Family
ID=51707397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410284945.0A Expired - Fee Related CN104110469B (en) | 2014-06-15 | 2014-06-15 | Air-cooled plastic extruder hypocycloid reduction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104110469B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565222A (en) * | 2015-01-02 | 2015-04-29 | 李响 | Interlayer body zero-return-difference type general inner cycloidal reduction box |
| CN104565221A (en) * | 2015-01-02 | 2015-04-29 | 李响 | Interlayer body zero-return-difference type general cycloidal reduction box |
| CN104565309A (en) * | 2015-01-02 | 2015-04-29 | 李响 | Interlayer body zero-return-difference type general small-tooth-difference 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 |
| WO2022062076A1 (en) * | 2020-09-25 | 2022-03-31 | 台州市杰龙风机厂 | Low-loss axial flow fan |
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| 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 |
-
2014
- 2014-06-15 CN CN201410284945.0A patent/CN104110469B/en not_active Expired - Fee Related
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 |
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| 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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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565222A (en) * | 2015-01-02 | 2015-04-29 | 李响 | Interlayer body zero-return-difference type general inner cycloidal reduction box |
| CN104565221A (en) * | 2015-01-02 | 2015-04-29 | 李响 | Interlayer body zero-return-difference type general cycloidal reduction box |
| CN104565309A (en) * | 2015-01-02 | 2015-04-29 | 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 |
| CN104565222B (en) * | 2015-01-02 | 2017-05-03 | 李响 | Interlayer body zero-return-difference type general inner 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 |
| WO2022062076A1 (en) * | 2020-09-25 | 2022-03-31 | 台州市杰龙风机厂 | Low-loss axial flow fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104110469B (en) | 2016-09-14 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Inventor after: Training 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 WANGLIN PACKAGING 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 |
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Granted publication date: 20160914 |