CN104110486B - Air-cooled plastic extruder dynamic balancing few teeth difference reduction box - Google Patents

Air-cooled plastic extruder dynamic balancing few teeth difference reduction box Download PDF

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Publication number
CN104110486B
CN104110486B CN201410285568.2A CN201410285568A CN104110486B CN 104110486 B CN104110486 B CN 104110486B CN 201410285568 A CN201410285568 A CN 201410285568A CN 104110486 B CN104110486 B CN 104110486B
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China
Prior art keywords
cylinder
casing
built
input
bearing
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Application number
CN201410285568.2A
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Chinese (zh)
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CN104110486A (en
Inventor
陈可来
郑上剑
吴宾辉
吴声震
王大丰
蔡名洁
何继波
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Zhejiang Heng Teeth Drive Co., Ltd.
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Zhejiang Evergear Driving Machine Co Ltd
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Priority to CN201410285568.2A priority Critical patent/CN104110486B/en
Publication of CN104110486A publication Critical patent/CN104110486A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • F16H57/0412Cooling or heating; Control of temperature
    • F16H57/0415Air cooling or ventilation; Heat exchangers; Thermal insulations
    • F16H57/0416Air cooling or ventilation
    • 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
    • B29C48/252Drive or actuation means; Transmission means; Screw supporting means
    • B29C48/2526Direct drives or gear boxes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/023Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • F16H57/048Type of gearings to be lubricated, cooled or heated
    • F16H57/0482Gearings with gears having orbital motion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/08General details of gearing of gearings with members having orbital motion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H2057/02039Gearboxes for particular applications
    • F16H2057/02069Gearboxes for particular applications for industrial applications
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H2057/02086Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H2057/02091Measures for reducing weight of gearbox

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  • 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)
  • Retarders (AREA)

Abstract

The present invention relates to plastic extruder special retarding technical field, a kind of air-cooled plastic extruder involute less tooth difference reduction box, including casing and the Involute Small Teeth Difference Planetary Gearing part that is placed in casing, it is characterised in that:Body side is equipped with an axial fan F, the ventilation window P that casing top can be adjusted equipped with an exhaust air rate, built-in cylinder is placed in casing, its flange couples with casing, air-flow cavity is formed between cylinder outer surface and casing, built-in cylinder couples cylinder end cap, and cylinder end cap input is cylindrical with casing input endoporus close-fitting, is coupled with same circle ring disk;In four identical planetary gears:180 ° of both sides planetary gear and breast wheel phase difference, ring gear is fastened in built-in cylinder.Beneficial effect:Cycloid overload capacity is big, can realize quiet, dynamic balancing, makes transmission more steady;Theoretical calculation shows:Lightweight 50 60%;Air cooling structure is simple, and control, easy to adjust, reliability are high, low cost of manufacture.

Description

Air-cooled plastic extruder dynamic balancing few teeth difference reduction box
【Technical field】
It is prior art ZLYJ type parallel axis hard-tooth surface plastics the present invention relates to plastic extruder special retarding technical field The improvement of speed reducer special for extruder, a kind of air-cooled plastic extruder dynamic balancing few teeth difference reduction box.
【Background technology】Prior art ZLYJ plastic speed reducer special for extruder, is ZLY type two-stage parallel axis hard-tooth surfaces Gear reduction unit sets thrust bearing, is used to bear the improvement type of plastics machine screw rod axial force, is the largest domestic reductor people Enterprise Guo Mao reductors group of battalion claims in 2010.6 main products released, company:" ZLYJ plastic speed reducer special for extruder The features such as with small volume, high capacity, stable drive, low noise, efficiency high." counted according to reductor industry sources, ZLYJ types Special reducer for plastic extruder, be that existing domestic market Accounting amounts of having are maximum, copy the most special reduction gear product of producer it One.
Research finds that ZLYJ plastic speed reducer special for extruder has following two large problems:
(1) screw rod is in the condition of high temperature in the plastic barrel of reductor front end connection, causes oil temperature in decelerating chassis to rise, The oily cooling back installation of pressure must be thus set, so that adds additional manufacturing cost and increased main screw lift;
(2) light weight degree of the driving of parallel axes is lower than Gear Planet Transmission, and Gear Planet Transmission (is gradually opened including planet with few teeth difference Line and cycloid) two major classes.Gear Planet Transmission light weight degree theoretical explanation high sees following authoritative monographs:
(1)《Gear handbook》(1-4 pages):" Gear Planet Transmission instead of a collection of parallel axes structure driven form, because row Star is driven and uses several planetary gears transfer charge simultaneously, and make use of the combining form of internal messing, thus with high capacity, body The advantages of small, the lightweight, efficiency high of product, small noise.”
(2) Zhu Xiaolu《Gear Transmission Design handbook》Page 660:" Gear Planet Transmission compared with fixed shaft gear train, with small volume, Lightweight, gear range is big, efficiency high and the advantages of stable working.Gear Planet Transmission instead of a collection of parallel axes structure driven shape Formula, because Gear Planet Transmission uses several planetary gears transfer charge simultaneously, and make use of the combining form of internal messing, thus have Have the advantages that high capacity, small volume, lightweight, efficiency high, noise are small.”
(3) Yan Sijian《Involute planet gear driven Design and manufacture》:" involute planet gear is driven and common dead axle Gear drive is compared, and with large carrying capacity, small volume, efficiency high, lightweight, noise is small, reliability is high, long lifespan, be easy to The advantages of maintenance ... under similarity condition, its weight wants small good to the casing that the casing of Gear Planet Transmission is driven than common fixed axis gear Several times, because planet cage body contour dimension is more much smaller than the casing that common fixed axis gear is driven.”
【The content of the invention】Present invention aim at provide with it is air-cooled replacement forced oil cooling but device with reduce manufacturing cost, use The small Tooth Number Difference Planetary Transmission of multiple tooth engagement replaces the existing ZLYJ driving of parallel axes, a kind of few tooth of air-cooled plastic extruder dynamic balancing Difference reduction box.To achieve the above object, its implementer's case is as follows:
The present invention with reference to axial fan strength cooling radiating, couples based on modern Involute Small Teeth Difference Planetary Gearing The common knowledges such as mode, constitute the present patent application claim 1 required for protection.
The theoretical foundation of axial flow blower cooling technology:《Gear Transmission Design handbook》Page 972 are pointed out:" planetary gear speed-reduction Device relative volume and surface radiating area are greatly reduced, and because equilibrium temperature is still very high, bearing capacity is limited by thermal power System ... take supplement heat rejecter heat abstractor to improve thermal power." thermal power formula:P=Bref·BV·BA·BT·PQ(kW) (in formula:Bref- environment temperature correction factor, BV- air velocity correction factor, BA- height above sea level correction factor, BT- highest oil temperature Correction factor), according to Zhu Xiaolu《Gear Transmission Design handbook》The correction factor B of 979 page table 8-47 surrounding air flow velocitysV, carry Decelerator thermal power high can uniquely do be increase air-flow velocity:As air velocity v >=3.8m/s, correction factor BV= 1.90, B during than v=0.5~1.4m/sV=1.0 improve by about one time, that is, thermal power P is doubled.It is investigated that:Shanghai state The 145FZY profile shaft flow fan air quantity 330m of weighing apparatus Motor Corporation3/ hr., 150FZY profile shaft flow fan air quantity 459m3/ hr., is computed Wind speed is respectively 5.55m/s and 7.6m/s, wind speed >=3.8m/s.
Background technology points out, to improve the speed reducer dedicated light weight degree of plastic extruder, it is necessary to by prior art The driving of parallel axes is improved to Gear Planet Transmission.The mechanical efficiency of single-stage planetary gear train with a small tooth difference:
《Gear handbook》Upper 7-126 pages of calculated example:Efficiency eta=0.944 (two teeth difference Zd=2);
The present inventor is according to 100 (tooth difference Zd=2,3, calculating 4), draw following result:Efficiency eta=0.934 (Zd =2), 0.96 (Zd=3), 0.97 (Zd=4), thus single-stage involute less tooth difference may replace two grades of parallel-axes gears of background technology Transmission.
Involute Small Teeth Difference Planetary Gearing technical characteristic has been that those skilled in the art know completely, prior art ZLYJ extruders Special reduction gear speed reducing ratio is small (i=16), therefore, the poor (Z of four teeth can be usedd=4) can obtain transmission efficiency higher:η= 0.97.。
" remarkable advantage is for four planetary gear structures:Both sides ring flat-plate uniform thickness, due to both sides ring flat-plate and middle two ring flat-plates phase angle 180 ° of difference, thus can realize being operated under dynamic equilibrium state, it is driven especially steady.”(《Dual-motors Driving double-crank Fourth Ring Board-like Cycloid drive research》The project of national nature science fund project that Dalian University Of Communications undertake, fund approval number: 50175011) technological means implemented:
The body side is equipped with an axial fan F, and casing top is equipped with a ventilation window P;
Couple built-in cylinder flange on the end face of the casing output end, the one of the built-in cylindrical band radiating ribs are placed on Air-flow cooling cavity is formed in casing between casing, the end face of cylinder that it is placed in outside casing couples the barrel of plastic extruder;
The built-in cylinder input end face connection cylinder end cap, the input of the cylinder end cap is cylindrical to be input into casing End endoporus close-fitting, the cylinder end cap input end face is coupled with the nose circle face of casing input with same circle ring disk, makes built-in circle Freely supported structure of the cylinder in two-side supporting;
The planetary gear is four wheels that parameter is identical, phase differs, wherein:Both sides planetary gear phase is identical, in Between two planetary gear phases it is identical, both sides planetary gear and middle 180 ° of two planetary gears phase difference;
The ring gear is fastened on the input endoporus of built-in cylinder.
【Beneficial effect】Each independent technical characteristic supports each other, and can produce known to those skilled in the art beneficial Technique effect:
(1) have the advantages that large carrying capacity, small volume, efficiency high, noise are small and be easy to maintenance;
(2) calculate and show:Lightweight 40-55%;(3) air cooling structure is simple, and reliability is high, low cost of manufacture.
It is attached:Reducer With Involute Gear of Less-tooth Difference of the present invention and prior art ZLYJ type speed reducers profile and weight comparison sheet
【Brief description of the drawings】Fig. 1 embodiment of the present invention structural representations
Fig. 2 embodiment of the present invention casing 1 sets the structural representation of axial fan F and ventilation window P
【Specific embodiment】The present invention is encyclopaedized below in conjunction with the accompanying drawings:
Lacking in a kind of air-cooled plastic extruder dynamic balancing few teeth difference reduction box of reference picture 1., including casing 1 and casing Tooth difference driving member, the less teeth difference transmission part is included on built-in cylinder 2, planetary gear, ring gear 12, input shaft 16, input shaft 16 Capacity eccentric bearing 14 and w output mechanisms, the w output mechanisms include pin and output shaft 8, the clutch shaft bearing 3 of the output shaft 8 Bearing block 7, the endoporus of the bearing block 7 and thrust are provided with before being supported on the output end endoporus of built-in cylinder 2, the clutch shaft bearing 3 The outer ring of roller bearing 4 coordinates, and the inner ring end face outside of the thrust roller bearing 4 is spacing by thrust cylinder 5, the thrust circle Cylinder 5 is enclosed within output shaft 8, and the axial direction of the thrust cylinder 5 is spacing by circular ring cover 6, on the output end face of built-in cylinder 2 sequentially Coupling spindle bearing 7 and circular ring cover 6, the endoporus of the output shaft 8 couple the afterbody of extruder screw, second axle of the input shaft 16 Hold 15 and be supported on the endoporus of cylinder end cap 13, it is characterised in that:
The side of the casing 1 is equipped with an axial fan F, and the top of casing 1 is equipped with a ventilation window P, the row of the ventilation window P Air quantity can be adjusted, to reach optimal air discharging and radiating effect;
Couple the flange of built-in cylinder 2, the side of the built-in cylinder 2 with radiating ribs on the end face of the output end of the casing 1 It is placed in casing 1 and air-flow cooling cavity is formed between casing, the end face of cylinder connection plastic extruder that it is placed in outside casing 1 Barrel, with driving member temperature rise in the built-in cylinder of strong wind cooling, has the technical effect that low cost and temperature control reliability;
The input end face of the built-in cylinder 2 connection cylinder end cap 13, the input of the cylinder end cap 13 is cylindrical and case The nose circle face same circle ring disk 9 of the input endoporus close-fitting of body 1, the input end face of cylinder end cap 13 and the input of casing 1 Connect, built-in cylinder is in the freely supported structure of two-side supporting;
The planetary gear is four wheels that parameter is identical, phase differs, wherein:The phase of both sides planetary gear 10 is identical, The middle phase of two planetary gear 11 is identical, 180 ° of both sides planetary gear 10 and 11 phase difference of middle two planetary gear, advantage be can realize it is quiet, Dynamic balancing, makes transmission more steady;
The ring gear 12 is fastened on the input endoporus of built-in cylinder 2 so that the active force of inside and outside wheel tooth mesh pair refers to To the footing of casing 1 without producing tilting moment.
Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after Scheme belong to protection scope of the present invention.

Claims (1)

1. a kind of air-cooled plastic extruder dynamic balancing few teeth difference reduction box, including the less teeth difference transmission in casing (1) and casing Part, the less teeth difference transmission part is included on built-in cylinder (2), planetary gear, ring gear (12), input shaft (16), input shaft (16) Capacity eccentric bearing (14) and w output mechanisms, the w output mechanisms include pin and output shaft (8), and the output shaft (8) uses the One bearing (3) is provided with bearing block (7), the axle before being supported on built-in cylinder (2) output end endoporus, the clutch shaft bearing (3) Bearing (7) endoporus coordinates with the outer ring of thrust roller bearing (4), and the inner ring end face outside of the thrust roller bearing (4) is by pushing away Power cylinder (5) is spacing, and the thrust cylinder (5) is enclosed within output shaft (8), and the axial direction of the thrust cylinder (5) is by circular ring cover (6) It is spacing, sequentially coupling spindle bearing (7) and circular ring cover (6), output shaft (8) endoporus on built-in cylinder (2) output end face Couple the afterbody of extruder screw, the input shaft (16) is supported on cylinder end cap (13) endoporus with second bearing (15), it is special Levy and be:
Casing (1) side is equipped with an axial fan (F), and casing (1) top is equipped with a ventilation window (P), the ventilation window (P) exhaust air rate can be adjusted;
Couple built-in cylinder (2) flange, the built-in cylinder (2) with radiating ribs on the end face of casing (1) output end The cavity that formation air-flow is cooled down between casing in casing (1) is placed on, the end face of cylinder connection plastics that it is placed in outside casing (1) The barrel of extruder;
Built-in cylinder (2) the input end face couples cylinder end cap (13), the input of the cylinder end cap (13) it is cylindrical with The same circle in nose circle face of casing (1) input endoporus close-fitting, cylinder end cap (13) input end face and casing (1) input The ring disk (9) couples;
The planetary gear is four wheels that parameter is identical, phase differs, wherein:Both sides planetary gear (10) phase is identical, in Between two planetary gears (11) phase it is identical, both sides planetary gear (10) and middle 180 ° of two planetary gear (11) phase difference;
The ring gear (12) is fastened on the input endoporus of built-in cylinder (2).
CN201410285568.2A 2014-06-15 2014-06-15 Air-cooled plastic extruder dynamic balancing few teeth difference reduction box Active CN104110486B (en)

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CN104110486B true CN104110486B (en) 2017-07-11

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4878467A (en) * 1986-09-17 1989-11-07 Konrad Schmidt Single- or multiple-part protective cover for traction drives
CN2741748Y (en) * 2003-06-27 2005-11-23 梁伟甫 Speed reducer special for extruder
CN102678833A (en) * 2012-05-08 2012-09-19 吴小杰 Self-braking less differential gear reducer for aerial cableway
CN102996722A (en) * 2012-10-09 2013-03-27 吴小杰 Bearing-grease-lubrication large-torque cycloid reduction gearbox
CN103375543A (en) * 2012-04-25 2013-10-30 吴小杰 Involute small-tooth-difference reducer for aerial cableway
CN103727219A (en) * 2013-12-19 2014-04-16 无锡联创薄板有限公司 Air-exhausting heat dissipation gearbox

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10357884A1 (en) * 2003-12-11 2005-07-21 Windmöller & Hölscher Kg Direct drive extruder with adapter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4878467A (en) * 1986-09-17 1989-11-07 Konrad Schmidt Single- or multiple-part protective cover for traction drives
CN2741748Y (en) * 2003-06-27 2005-11-23 梁伟甫 Speed reducer special for extruder
CN103375543A (en) * 2012-04-25 2013-10-30 吴小杰 Involute small-tooth-difference reducer for aerial cableway
CN102678833A (en) * 2012-05-08 2012-09-19 吴小杰 Self-braking less differential gear reducer for aerial cableway
CN102996722A (en) * 2012-10-09 2013-03-27 吴小杰 Bearing-grease-lubrication large-torque cycloid reduction gearbox
CN103727219A (en) * 2013-12-19 2014-04-16 无锡联创薄板有限公司 Air-exhausting heat dissipation gearbox

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C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB03 Change of inventor or designer information

Inventor after: Chen Kelai

Inventor after: Zheng Shangjian

Inventor after: Wu Binhui

Inventor after: Wu Shengzhen

Inventor after: Wang Dafeng

Inventor after: Cai Mingjie

Inventor after: He Jibo

Inventor before: Wu Shengzhen

CB03 Change of inventor or designer information
TA01 Transfer of patent application right

Effective date of registration: 20170524

Address after: 325409, Zhejiang province Pingyang County light industrial base, machinery Park, sun building intersection

Applicant after: ZHEJIANG EVERGEAR DRIVING MACHINE CO., LTD.

Address before: Whitehead street, Pingyang County, Zhejiang Province town of Kunyang 325400 Wenzhou City Building No. 4 room 761

Applicant before: Wu Xiaojie

TA01 Transfer of patent application right
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CP03 Change of name, title or address

Address after: 325000 No. 30-70 Xingqiang Road, Electrical and Mechanical Venture Park, Wanquan Town, Pingyang County, Wenzhou City, Zhejiang Province

Patentee after: Zhejiang Heng Teeth Drive Co., Ltd.

Address before: 325409 Sunlou Intersection of Machinery Park, Wanquan Light Industry Base, Pingyang County, Zhejiang Province

Patentee before: Zhejiang Evergear Driving Machine Co., Ltd.

PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Air cooled plastic extrusion dynamic balance reducer with small tooth difference

Effective date of registration: 20211222

Granted publication date: 20170711

Pledgee: Wenzhou Financing Guarantee Co.,Ltd.

Pledgor: Zhejiang Heng Teeth Drive Co.,Ltd.

Registration number: Y2021110000099

PE01 Entry into force of the registration of the contract for pledge of patent right