CN104696493A - Cabinet interlayer air-cooled high heat power dynamic balancing small tooth difference reduction box - Google Patents

Cabinet interlayer air-cooled high heat power dynamic balancing small tooth difference reduction box Download PDF

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Publication number
CN104696493A
CN104696493A CN201510078887.0A CN201510078887A CN104696493A CN 104696493 A CN104696493 A CN 104696493A CN 201510078887 A CN201510078887 A CN 201510078887A CN 104696493 A CN104696493 A CN 104696493A
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China
Prior art keywords
cabinet
casing
inner cylinder
interlayer
input end
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Pending
Application number
CN201510078887.0A
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Chinese (zh)
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吴声震
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Individual
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Individual
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Priority to CN201510078887.0A priority Critical patent/CN104696493A/en
Publication of CN104696493A publication Critical patent/CN104696493A/en
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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
    • 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
    • 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
    • F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

The invention relates to an involute small tooth difference reduction box, in particular to a cabinet interlayer air-cooled high heat power dynamic balancing small tooth difference reduction box. The cabinet interlayer air-cooled high heat power dynamic small tooth difference reduction box comprises a cabinet, an input shaft, a transmission mechanism and an output shaft, wherein the input shaft, the transmission mechanism and the output shaft are arranged in the cabinet and drive in sequence. The cabinet interlayer air-cooled high heat power dynamic balancing hypocycloid reduction box is characterized in that an inner cylinder and circular end cover connecting piece is arranged in the cabinet; an inner cylinder flange is connected with the output end surface of the cabinet; an excircle at the input end of a circular end cover is tightly matched with an inner hole in the input end of the cabinet; the input end surface of the circular end cover is hermetically connected with the input end of the cabinet by using a same circular ring disc; the inner wall of the cabinet and the outer wall of the inner cylinder and circular end cover connecting piece form an interlayer; a fan is arranged at the side part of the cabinet, and an exhaust fan is arranged at the top of the cabinet; the input shaft and the output shaft respectively support the circular end cover and an inner cylinder by using bearings; the transmission mechanism comprises a planetary wheel, an inner gear ring, an eccentric bearing and a pin. The cabinet interlayer air-cooled high heat power dynamic balancing small tooth difference reduction box has the benefits that heat in the interlayer is exhausted by an exhaust window and transmitted to the uniform thin-walled cylinder at the same time to be radiated to the exterior of the cabinet, the heat radiating area is throughout the whole cabinet, the heat power is high, the structure is simple, the manufacturing cost is low, and the dynamic balance of operation can be realized.

Description

The air-cooled large thermal power dynamic balancing few teeth difference speed reducer of casing interlayer
[technical field]
Relate to few teeth difference speed reducer to improve, the air-cooled large thermal power dynamic balancing few teeth difference speed reducer of a kind of casing interlayer.
[background technique]
Prior art involute less tooth difference speed reducer, the production history of existing nearly 30 years, product is throughout domestic many departments.Involute Small Teeth Difference Planetary Gearing has higher transmission efficiency: the Z of " gear handbook " upper 7-126 page d=2 calculated example: η=0.944; The routine result of calculation of inventor 100: η=0.934 (Z d=2), 0.96 (Z d=3), 0.97 (Z d=4), thus single-stage involute less tooth difference can replace secondary planetary gear transmission.
Prior art major defect is: because Reducer With Involute Gear of Less-tooth Difference does not adopt cooling measure, natural heat dissipation is only relied on to cause thermal power low, user's increasing one, two types number of having to are made to carry out type selecting, many mechanical theory monographs are exactly specify so, its result necessarily increases expense, power is larger, expense increase is more: as specified HJW-35B type (thermal power 40kW, weight 1042kg, valency 4.78 ten thousand yuan), now strengthens a type number and selects HJW-40B (thermal power 51kW, weight 1365kg, valency 6.42 ten thousand yuan); HJW-45B (thermal power 62kW, weight 1800kg, valency 8.8 ten thousand yuan) is selected as strengthened two types number.As can be seen here, the structure for increasing thermal power prior art must be improved.
Thermal power be enclosed retarder under lubricant oil balanced temperature conditions the peak output that can transmit continuously.Thermal power should equal or be bordering on the power that real work is transmitted.(" Gear Transmission Design handbook " 972 pages)
Input power when thermal power refers to that under natural cool condition lubricating oil temperature is no more than allowable temperature.Thermal power is the important parameter of design lubrication system, is the important evidence selecting retarder.(" design and manufaction of Planetary Involute Gear " 230 pages)
" the thermal power analyses of four Ring-plate Pin-cycloid Gear Planetary Transmission retarders " are pointed out: rely on outer surface natural heat dissipation to be difficult to meet the demands under high-speed overload, cause operating temperature too high, and lubrication system lost efficacy.(Dalian Railway University's report 2005.03)
High oil temperature is one of speed reducer fault very major reason, this is because: oil temperature high viscosity declines, oily emulsification, local oil film breakdown, and lubrication failure causes On Gear Scoring, spot corrosion and inordinate wear; Oil carbon, forms dregs; The high gear anomalies that causes of oil temperature is worn and torn, and inordinate wear makes oil temperature raise, and vicious circle like this, speed reducer is premature breakdown within useful life period.
The highest allowable temperature of reduction gear box lubricating oil sump is about 70 DEG C, and it is according to having three:
(1) German PPSC1290-MY type wind turbine gearbox: lubricating oil sump maximum temperature is 70 DEG C;
(2) the highest oil temperature 70 DEG C (" thermal power of gear of wind power speed-increasing gearbox calculates case " wind-power electricity generation 2003.3) of gear of wind power speed-increasing gearbox expectation
(3) certain 1.25MW unit oil temperature supervisory system domestic: when gearbox lubrication oil temperature is more than 75 DEG C, supervisory system sends alarm signal.(" wind-driven generator group wheel box lubricating oil temperature supervisory system " Shanghai Dian Ji University journal 2008.12)
[summary of the invention], for solving the low defect of prior art thermal power, the object of the invention provides with air-cooled alternative natural heat dissipation in casing interlayer to improve thermal power, the air-cooled large thermal power dynamic balancing few teeth difference speed reducer of a kind of casing interlayer.
For achieving the above object, implementer's case system that the present invention takes proposes according to the following discussion that thermal power can be made to be not less than mechanical output about cooling heat radiator:
" Gear Transmission Design handbook " 973 pages: the size of thermal power is relevant with cooling measure, if adopt circulating oil lubrication, cooler and externally mounted fuel tank enough large, thermal power can be not less than mechanical output;
" Gear Transmission Design handbook " 1048 pages: adopt outer circulation radiation system: lubricant oil → oil pump in fuel tank → consider oily device → fan cooled → oil to enter fuel tank, as long as fuel delivery and pectinid amount are enough large, retarder even can not be heated Power Limitation;
Research thermal power correction formula P=B refb vb ab tp q(kW) find: adopt enough high wind speed by casing Oil-temperature control about 70 DEG C time, retarder thermal power P can improve 1.5 times, this is because:
(A) as air velocity v>=3.8m/s, correction factor B v=1.90, than B during v=0.5 ~ 1.4m/s v=1.0 improve nearly one times, that is thermal power P improves nearly one times.As: little axial-flow blower 150FZY type wind speed v=7.6m/s;
(B) during reduction gear box oil temperature 70 DEG C, oil temperature coefficient B t=0.667, make thermal power improve 50%.
(in formula: B ref, B v, B aand B tbe respectively ambient temperature, air velocity, altitude and the highest oil temperature correction factor, wherein: B t=0.00236C 1.32845=0.667 (70 DEG C).(" Gear Transmission Design handbook " 979 pages)
SSX planetary reducer (N=500kW) does not have water source due to underground coal mine, adopts following measure: radiating fin established by increasing casing, casing; Input shaft dress fan.(" design of SSX series Hardened gear face plane table thermoconductivity meter cooling system and application " coal mine machinery 2008.09)
For achieving the above object, implementer's case of taking of the present invention is as follows:
The link of inner cylinder and nose circle lid is provided with in described casing, described inner cylinder flange is connected with casing output end face, the input end cylindrical of described nose circle lid and casing input end endoporus close-fitting, the nose circle face of described nose circle lid input end face and casing input end is tightly connected with same circle ring disk, and described inner cylinder and nose circle lid attachments outer surface are provided with radiating fin;
The outer wall of the inwall of described casing and inner cylinder and nose circle lid attachments encloses to connect and forms airtight interlayer, the outer wall of described inner cylinder and nose circle lid attachments and the inwall of casing enclose to connect and form airtight interlayer, described casing top is provided with the exhausting window of UNICOM's closed interlayer, and the side of described casing is provided with the axial-flow blower with closed interlayer UNICOM;
Described casing 1 is wall thickness δ=(1.1 ~ 1.3) (T with the body of inner cylinder 2 2) 0.25(mm) even thin-wall circular cylindrical shell (T 2output torque, Nm), cylindrical body has high mechanical properties and excellent heat dispersion performance (Cheng great Xian " mechanical design handbook " rolls up 3.14-485 page);
Described input, first and second bearing of shaft are bearing in nose circle lid endoporus and inner cylinder output terminal endoporus respectively;
Further, described driving mechanism comprises the planet wheel of two phase differences 180 °, ring gear, capacity eccentric bearing and pin, described ring gear is fastened on the input end endoporus of inner cylinder, the bearing hole at described planet wheel center is installed on the axle stretch end of input shaft through capacity eccentric bearing, described planet wheel and ring gear engagement driving, described planet wheel is connected with output shaft through pin, and described planet wheel is identical four wheels, and both sides planet wheel phase place is same; It is same that phase place is taken turns in centre two; Both sides planet wheel and middle two planet wheel phase difference 180 °.
Although each independent technical characteristics of the present invention is completely known, support each other, and can following Advantageous Effects be produced:
(1) outer wall of inner cylinder and nose circle lid encloses and connects formation closed interlayer, heat in closed interlayer is discharged by exhausting window on the one hand, the even thin walled cylinder passing to box-like body is on the other hand dispersed into outside casing, cold wind capacity is large, heat diffusion area is large throughout whole casing, thermal power, structure is simple, controls, easy to adjust, reliability is high, low cost of manufacture;
(2) thermal power can be made to be not less than the discussion of mechanical output according to cooling heat radiator, the present invention, by the correct calculating to air quantity, wind speed, can accomplish that thermal power is not less than mechanical output;
(3) when oil in casing controls at about 70 DEG C, the unlikely decline of oil temperature high viscosity, oil film is not damaged, thus ensures that wheel tooth mesh pair runs well under being in good lubrication state always, makes speed reducer have long useful life period;
(4) two side wheel phase places with, both sides and breast wheel phase difference 180 °, can realize running dynamic balancing with, breast wheel phase place.
[accompanying drawing explanation]
Fig. 1. embodiment of the present invention structural representation
Fig. 2 .. embodiment of the present invention casing 1 top establishes air outlet window P and side to establish air inlet fan F structural representation
[embodiment] encyclopaedizes the present invention below in conjunction with accompanying drawing:
With reference to Fig. 1. the air-cooled large thermal power dynamic balancing few teeth difference speed reducer of a kind of casing interlayer, comprises casing 1 and to be arranged in casing 1 and the input shaft 11 of transmission successively, driving mechanism and output shaft 4, it is characterized in that:
The link of inner cylinder 2 and nose circle lid 5 is provided with in described casing 1, described inner cylinder 2 flange is connected with casing 1 output end face, described nose circle lid 5 input end cylindrical and casing 1 input end endoporus close-fitting, the nose circle face of described nose circle lid 5 input end face and casing 1 input end is tightly connected with same circle ring disk 12, and described inner cylinder 2 establishes radiating fin with nose circle lid 5 link outer surface;
Described inner cylinder 2 encloses with the outer wall of nose circle lid 5 link and the inwall of casing 1 and connects formation closed interlayer, described casing 1 top is provided with the exhausting window P of UNICOM's closed interlayer, the side of described casing 1 is provided with the axial-flow blower F with closed interlayer UNICOM, with the temperature rise of driving component in air cooling inner cylinder 2, its technique effect is that structure is simple, cost is low;
Described casing 1 is wall thickness δ=(1.1 ~ 1.3) (T with the body of inner cylinder 2 2) 0.25(mm) even thin-wall circular cylindrical shell (T 2output torque, Nm), cylindrical body has high mechanical properties and excellent heat dispersion performance (Cheng great Xian " mechanical design handbook " rolls up 3.14-485 page);
Described input, first and second bearing 10,3 of shaft 11,4 are bearing in nose circle lid 5 respectively with in inner cylinder 2 output terminal;
Described driving mechanism comprises the planet wheel 7 of two phase differences 180 °, ring gear 6, capacity eccentric bearing 9 and pin 8, described ring gear 6 is fastened on the input end endoporus of inner cylinder 2, active force is made directly to point to casing footing and tilting moment can not be produced, the bearing hole at described planet wheel 7 center is installed on the axle stretch end of input shaft 11 through capacity eccentric bearing 9, described planet wheel 7 and ring gear 6 engagement driving, described planet wheel 7 is connected with output shaft 4 through pin 8, described planet wheel is identical four wheels, wherein: both sides planet wheel 8 phase place is same; Middle two planet wheel 15 phase places are same; Both sides planet wheel 8 and middle two planet wheel 15 phase difference 180 °.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, anyly all belongs to protection scope of the present invention to the scheme after simple transformation of the present invention.

Claims (1)

1. the air-cooled large thermal power dynamic balancing few teeth difference speed reducer of casing interlayer, comprise casing (1) and to be arranged in casing (1) and the input shaft (10) of transmission successively, driving mechanism and output shaft (4), it is characterized in that:
The link of inner cylinder (2) and nose circle lid (5) is provided with in described casing (1), described inner cylinder (2) flange is connected with casing (1) output end face, the input end cylindrical of described nose circle lid (5) and casing (1) input end endoporus close-fitting, the nose circle face of described nose circle lid (5) input end face and casing (1) input end is tightly connected with same circle ring disk (12), and described inner cylinder (2) and nose circle lid (5) link outer surface are provided with radiating fin;
Described inner cylinder (2) encloses to connect with the outer wall of nose circle lid (5) link and the inwall of casing (1) and forms airtight interlayer, described casing (1) top is provided with the exhausting window (P) of UNICOM's closed interlayer, and the side of described casing (1) is provided with and the axial-flow blower of closed interlayer UNICOM (F);
Described casing (1) is wall thickness δ=(1.1 ~ 1.3) (T with the body of inner cylinder (2) 2) 0.25(mm) even thin-wall circular cylindrical shell (T 2for speed reducer output torque, Nm);
Described input, shaft (10,4) first and second bearing (11,3) are bearing in nose circle lid (5) endoporus and inner cylinder (2) output terminal endoporus respectively;
Described driving mechanism comprises planet wheel, ring gear (6), capacity eccentric bearing (9) and pin (7), described ring gear (6) is fastened on the input end endoporus of inner cylinder (2), the bearing hole at described planet wheel center is installed on the axle stretch end of input shaft (10) through capacity eccentric bearing (9), described planet wheel and ring gear (6) engagement driving, described planet wheel is connected with output shaft (4) through pin (7), described planet wheel is four identical wheels, wherein: both sides planet wheel (8) phase place is identical; Middle two planet wheels (13) phase place is identical; Both sides planet wheel (8) and middle two planet wheels (13) phase difference 180 °.
CN201510078887.0A 2014-06-28 2015-02-13 Cabinet interlayer air-cooled high heat power dynamic balancing small tooth difference reduction box Pending CN104696493A (en)

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CN201410318793 2014-06-28
CN2014103187931 2014-06-28
CN201510078887.0A CN104696493A (en) 2014-06-28 2015-02-13 Cabinet interlayer air-cooled high heat power dynamic balancing small tooth difference reduction box

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105156641A (en) * 2015-09-21 2015-12-16 陈伟 Double-area type interlayer box body air-cooling dynamic-balance small-tooth-difference reduction gearbox
CN105202120A (en) * 2015-09-18 2015-12-30 陈伟 Numeric-display non-meshing region oil temperature dynamic-balance small tooth difference speed reducer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074590A (en) * 1974-08-07 1978-02-21 Helmut Jorg Arrangement for cooling a lubricant-filled, finned gear case by means of a built-in fan
CN2415209Y (en) * 1999-11-23 2001-01-17 陶刚 Jacket water-cooled continuous casting withdrawal straightening machine speed reducer
DE102011113621A1 (en) * 2011-09-16 2012-04-12 Daimler Ag Transmission e.g. automatic transmission, for e.g. passenger car, has air circulation device provided with air inlet opening of housing portion for admitting air in receiving space and air outlet opening for discharging air from space
CN102889338A (en) * 2011-07-17 2013-01-23 吴小杰 Novel star wheel speed reducer
CN102889341A (en) * 2011-07-17 2013-01-23 吴小杰 Large star wheel gear box
CN102979894A (en) * 2012-10-09 2013-03-20 吴小杰 Large-scale star wheel gear box lubricated by bearing grease

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074590A (en) * 1974-08-07 1978-02-21 Helmut Jorg Arrangement for cooling a lubricant-filled, finned gear case by means of a built-in fan
CN2415209Y (en) * 1999-11-23 2001-01-17 陶刚 Jacket water-cooled continuous casting withdrawal straightening machine speed reducer
CN102889338A (en) * 2011-07-17 2013-01-23 吴小杰 Novel star wheel speed reducer
CN102889341A (en) * 2011-07-17 2013-01-23 吴小杰 Large star wheel gear box
DE102011113621A1 (en) * 2011-09-16 2012-04-12 Daimler Ag Transmission e.g. automatic transmission, for e.g. passenger car, has air circulation device provided with air inlet opening of housing portion for admitting air in receiving space and air outlet opening for discharging air from space
CN102979894A (en) * 2012-10-09 2013-03-20 吴小杰 Large-scale star wheel gear box lubricated by bearing grease

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105202120A (en) * 2015-09-18 2015-12-30 陈伟 Numeric-display non-meshing region oil temperature dynamic-balance small tooth difference speed reducer
CN105156641A (en) * 2015-09-21 2015-12-16 陈伟 Double-area type interlayer box body air-cooling dynamic-balance small-tooth-difference reduction gearbox

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Application publication date: 20150610