CN104675976A - Box body interlayer water cooling large thermal power cycloid reduction box - Google Patents
Box body interlayer water cooling large thermal power cycloid reduction box Download PDFInfo
- Publication number
- CN104675976A CN104675976A CN201510079052.7A CN201510079052A CN104675976A CN 104675976 A CN104675976 A CN 104675976A CN 201510079052 A CN201510079052 A CN 201510079052A CN 104675976 A CN104675976 A CN 104675976A
- Authority
- CN
- China
- Prior art keywords
- box body
- casing
- inner cylinder
- interlayer
- thermal power
- 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.)
- Pending
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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
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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
- F16H57/02—Gearboxes; Mounting gearing therein
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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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- 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
Abstract
The invention relates to improvement of a cycloid speed reducer, in particular to a box body interlayer water cooling large thermal power cycloid reduction box, comprising a box body and an input shaft, a transmission mechanism and an output shaft which are arranged in the box body and are driven in sequence; the box body interlayer water cooling large thermal power cycloid reduction box is characterized in that a connector of an inner cylinder and a round end cover is arranged in the box body; a flange of the inner cylinder is connected with the output end surface of the box body; the input end outer circle of the round end cover is tightly matched with an inner hole in the input end of the box body; an input end surface of the round end cover and the input end of the box body are hermetically connected by one same annular plate; an interlayer is formed by the inner wall of the box and the outer wall of the connector of the round end cover and the inner cylinder; a water inlet valve and a drainage valve communicated with the closed interlayer are arranged at the top and side part of the box body; bearings for input and output shafts are respectively supported at the round end cover and the inner cylinder, and the transmission mechanism comprises a cycloidal gear, an inner cycloidal rack, an eccentric bearing and a pin. The box body interlayer water cooling large thermal power cycloid reduction box has the technical effects that heat in the closed interlayer is discharged by a water output valve and dissipated by the box body, the structure is simple, the manufacturing cost is low, and the thermal power can be increased by adjusting water flow to approach to mechanical power.
Description
[technical field]
The present invention relates to the improvement of hypocycloid speed reducer, be specifically related to a kind of casing interlayer water-cooled large thermal power hypocycloid speed reducer.
[background technique]
Prior art SB hypocycloid (also known as double cycloid) speed reducer, though there is nearly 20 years history, because hypocycloid gear ring is processed with a little difficulty, domestic is many not as cycloid." the feature of (interior) cycloidal equidistance curve gear: double cycloid engages; Face contact is similar near nodal; Bag oil pocket is formed between flank profil.Compared with existing Cycloidal pin-wheel drive, (1) hypocycloid efficiency more than 93%; (2) hypocycloid bearing capacity is high by about 50%." (" development of cycloidal equidistance curve gear " China Textile University journal vol.15No.2,1989, Li Kezhi, Shen Peiji).
Prior art major defect is: because hypocycloid (also known as double cycloid) speed reducer 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, now for cycloid: as specified 8255 types (weight 865kg, valency 2.68 ten thousand yuan), now strengthen a type number and select 8265 (weight 1125kg, valencys 3.82 ten thousand yuan).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 is to provide and substitutes natural heat dissipation to improve thermal power by water-cooled in casing interlayer, a kind of casing interlayer water-cooled large thermal power hypocycloid speed reducer.
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;
" Gear Transmission Design handbook " 979 pages: when Oil-temperature control is at about 70 DEG C in cooling water flow and the enough senior general's casings of flow velocity, retarder thermal power P can improve 1.5 times.
This is because: thermal power correction formula P=B
refb
vb
ab
tp
q(kW) oil temperature coefficient B in
t=0.667, make thermal power P 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).
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, described casing top is provided with the inlet valve of UNICOM's closed interlayer, the side of described casing is provided with the flowing water Valve with closed interlayer UNICOM, the temperature rise of driving component in built-in cylinder is cooled with tap water, technique effect is that structure is simple, cost is low and temperature control is reliable, outlet valve place separately establishes the instrument and apparatus of a measurement water temperature, according to the temperature variation of cooling water, so that regulate inflow or water displacement to carry out temperature control at any time;
The body of described casing and inner cylinder is wall thickness δ=(1.1 ~ 1.3) (T
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 cycloid wheel of two phase differences 180 °, hypocycloid gear ring, capacity eccentric bearing and pin, described hypocycloid gear ring is fastened on the input end endoporus of inner cylinder, the bearing hole at described cycloid wheel center is installed on the axle stretch end of input shaft through capacity eccentric bearing, described cycloid wheel and hypocycloid gear ring engagement driving, described cycloid wheel is connected with output shaft through pin.
Although each independent technical characteristics of the present invention is completely known, support each other, and following Advantageous Effects known to those skilled in the art can be produced:
(1) outer wall of inner cylinder and nose circle lid encloses and connects formation closed interlayer, logical cooling water in interlayer, particularly tap water, inflow passes through Valve controlling, the heat of the hot water in closed interlayer is discharged by flowing water Valve on the one hand and is taken away, the even thin walled cylinder passing to box-like body is on the other hand dispersed into outside casing, and cooling water capacity is large, heat diffusion area is simple throughout whole casing, structure, 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 adjustment to cooling water flow, 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 cycloid wheel and hypocycloid gear ring engagement pair run well under being in good lubrication state always, makes speed reducer have long useful life period.
[accompanying drawing explanation]
Fig. 1. embodiment of the present invention structural representation
[embodiment] encyclopaedizes the present invention below in conjunction with accompanying drawing:
With reference to Fig. 1. a kind of casing interlayer water-cooled large thermal power hypocycloid speed reducer, 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, 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 is provided with radiating fin with the outer surface of nose circle lid 5 link;
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 inlet valve J of UNICOM's closed interlayer, the side of described casing 1 is provided with the flowing water Valve C with closed interlayer UNICOM, with the temperature rise of driving component in tap water cooling inner cylinder 2, technique effect is that structure is simple, cost is low and temperature control is reliable, outlet valve place separately establishes a survey water temperature instrument and apparatus, according to coolant water temperature change, so that regulate inflow or water displacement to carry out temperature control at any time;
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 endoporus and inner cylinder 2 output terminal endoporus respectively;
Described driving mechanism comprises the cycloid wheel 8 of two phase differences 180 °, hypocycloid gear ring 6, capacity eccentric bearing 9 and pin 7, described hypocycloid gear ring 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 cycloid wheel 8 center is installed on the axle stretch end of input shaft 11 through capacity eccentric bearing 9, described cycloid wheel 8 and hypocycloid gear ring 6 engagement driving, described cycloid wheel 8 is connected with output shaft 4 through pin 7.
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. a casing interlayer water-cooled large thermal power hypocycloid speed reducer, 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, 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 inlet valve (J) of UNICOM's closed interlayer, the side of described casing (1) is provided with and the flowing water Valve of closed interlayer UNICOM (C), and outlet valve place separately establishes the instrument and apparatus of a measurement water temperature;
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 (11,4) first and second bearing (10,3) are bearing in nose circle lid (5) endoporus and inner cylinder (2) output terminal endoporus respectively;
Described driving mechanism comprises the cycloid wheel (8) of two phase differences 180 °, hypocycloid gear ring (6), capacity eccentric bearing (9) and pin (7), described hypocycloid gear ring (6) is fastened on the input end endoporus of inner cylinder (2), the bearing hole at described cycloid wheel (8) center is installed on the axle stretch end of input shaft (11) through capacity eccentric bearing (9), described cycloid wheel (8) and hypocycloid gear ring (6) engagement driving, described cycloid wheel (8) is connected with output shaft (4) through pin (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510079052.7A CN104675976A (en) | 2014-06-28 | 2015-02-13 | Box body interlayer water cooling large thermal power cycloid reduction box |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410318846X | 2014-06-28 | ||
| CN201410318846 | 2014-06-28 | ||
| CN201510079052.7A CN104675976A (en) | 2014-06-28 | 2015-02-13 | Box body interlayer water cooling large thermal power cycloid reduction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104675976A true CN104675976A (en) | 2015-06-03 |
Family
ID=53311408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510079052.7A Pending CN104675976A (en) | 2014-06-28 | 2015-02-13 | Box body interlayer water cooling large thermal power cycloid reduction box |
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| CN (1) | CN104675976A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240493A (en) * | 2015-09-11 | 2016-01-13 | 陈伟 | Two-area interlayer box water-cooled hypocycloid gearbox |
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4872502A (en) * | 1987-09-25 | 1989-10-10 | The Falk Company | Air cooling of enclosed gear drives |
| CN2415209Y (en) * | 1999-11-23 | 2001-01-17 | 陶刚 | Jacket water-cooled continuous casting withdrawal straightening machine speed reducer |
| CN2779158Y (en) * | 2005-02-23 | 2006-05-10 | 张国林 | 9000 series cycloidal planetary gear speed reducer |
| CN101813164A (en) * | 2010-05-01 | 2010-08-25 | 吴声震 | Wind power generation single-stage pitch control double-cycloid speed reducer |
| CN202349108U (en) * | 2011-10-27 | 2012-07-25 | 上海减速机械厂有限公司 | Cycloid pin gear planetary reducer |
| CN102979857A (en) * | 2012-11-17 | 2013-03-20 | 吴小杰 | Bearing-grease lubricating wind-power double-cycloidal variable-pitch speed reducer |
-
2015
- 2015-02-13 CN CN201510079052.7A patent/CN104675976A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4872502A (en) * | 1987-09-25 | 1989-10-10 | The Falk Company | Air cooling of enclosed gear drives |
| CN2415209Y (en) * | 1999-11-23 | 2001-01-17 | 陶刚 | Jacket water-cooled continuous casting withdrawal straightening machine speed reducer |
| CN2779158Y (en) * | 2005-02-23 | 2006-05-10 | 张国林 | 9000 series cycloidal planetary gear speed reducer |
| CN101813164A (en) * | 2010-05-01 | 2010-08-25 | 吴声震 | Wind power generation single-stage pitch control double-cycloid speed reducer |
| CN202349108U (en) * | 2011-10-27 | 2012-07-25 | 上海减速机械厂有限公司 | Cycloid pin gear planetary reducer |
| CN102979857A (en) * | 2012-11-17 | 2013-03-20 | 吴小杰 | Bearing-grease lubricating wind-power double-cycloidal variable-pitch speed reducer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240493A (en) * | 2015-09-11 | 2016-01-13 | 陈伟 | Two-area interlayer box water-cooled hypocycloid gearbox |
| 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 |
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Application publication date: 20150603 |
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