CN104132125A - Interlayer water-cooling box planet differential reduction gearbox supported by zinc-based alloy bearings - Google Patents
Interlayer water-cooling box planet differential reduction gearbox supported by zinc-based alloy bearings Download PDFInfo
- Publication number
- CN104132125A CN104132125A CN201410396935.6A CN201410396935A CN104132125A CN 104132125 A CN104132125 A CN 104132125A CN 201410396935 A CN201410396935 A CN 201410396935A CN 104132125 A CN104132125 A CN 104132125A
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- China
- Prior art keywords
- planet
- output shaft
- casing
- gear
- inner cylinder
- 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
- 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
- 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
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
- F16H57/0417—Heat exchangers adapted or integrated in the gearing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses an interlayer water-cooling box planet differential reduction gearbox supported by zinc-based alloy bearings. The reduction gearbox comprises a box body, an input shaft, a differential-standard planet component and an output shaft. The reduction gearbox is characterized in that a connecting piece of an inner cylinder and a round end cover is arranged in the box body, the inner cylinder is connected with the box body, the input end of the round end cover is in close fit with an inner hole in the input end of the box body, the round end cover is connected with the box body through an annular disc, an interlayer is formed by the inner wall of the box body and the outer wall of the connecting piece of the inner cylinder and the round end cover, a water inlet valve and a water outlet valve are arranged on the top portion and the side portion of the box body, the planet component comprises a sun gear, a planet gear, a planet gear shaft, an inner gear ring and a planet carrier, the output shaft is supported in the zinc-based alloy bearings, a sponge with the T-shaped section is arranged in the output shaft, an oil storage cavity Q is formed by the sponge in the output shaft and a shaft hole, and lubricating oil flows to a friction face through a small hole of the output shaft. The reduction gearbox has the technical advantages that the structure is simple, and manufacturing cost is low; water flow is adjusted to enable thermal power to be close to mechanical power; the zinc-based alloy bearings are reliable in lubricating, bearing cost is lowered by 60 percent to 80 percent, and steel used by the bearings is saved by 50 percent to 70 percent.
Description
[technical field]
The present invention relates to planet technical field and improve, be specifically related to the improvement of the combination train of differential and quasi-planet, the planet differential reduction gearbox of a kind of intermediate water ice chest body zinc base alloy bearing supporting.
[background technique]
Universal planetary transmission 2K-H negative mechanisms comprises NAD (single-stage), NBD (secondary) and NCD (three grades).
Research discovery, existing Gear Planet Transmission technology has two deficiencies:
(1) output shaft adopts rolling bearing supporting, cost is high a lot of compared with sliding bearing, especially high-power, high pulling torque type: it is according to seeing the design of < < Planetary Involute Gear and manufacturing > > chapter 12 cement ball mill retarder calculated examples:
" because the bearing of (planetary reducer) output shaft does not bear radially working load (only bearing the deadweight of output planetary rack device), thereby bearing size is only determined by structural requirement." calculated example selects is the light ball bearing 9707/780 of single-row spy.
Through looking into, two bearings amounts to 44450 yuan of weight 624kg, prices.As changing casting Zine containing alloy sliding bearing into, weight approximately can alleviate 500kg, save 40,000 yuan more than.
The advantage of casting Zine containing alloy sliding bearing is:
(1) surface roughness can reach 1.6, and friction factor is little; (2) lighter by 40% than copper, cost is lower more than 40% than tin bronze;
(3) be 2～3 times of tin bronzes working life, has self-lubricating property and shock-absorbing function, is applicable to middle low-speed heave-load occasion.
(2) gear-box self does not have heat sinking function, thereby thermal power is low:
The magnitude relationship of thermal power is to bearing capacity, thereby very important, especially high-power, high pulling torque type.Its theoretical foundation sees into large first < < mechanical design handbook > > 3.14-432 page: " involute planet gear transmission has little etc. the advantage of compact structure, volume and quality and is widely used in metallurgy, mine, lifting etc. department.... the shortcoming of involute planet gear transmission is because volume is little, causes dispelling the heat bad, thereby requires there be good lubricating, and even needs to take cooling short executing.”
Prior art NAD, NBD and NCD planetary reducer do not adopt cooling measure, only rely on natural heat dissipation to cause thermal power low, make user have to strengthen one, two machine models are carried out type selecting, many mechanical theory monographs are exactly to stipulate so, its result must increase expense, power is larger, expense increase is more: if specified type is NBD900 type (thermal power 176kW, weight 5.6t., 16.5 ten thousand yuan of valencys), now strengthen a machine model and select NBD1000 (thermal power 230kW, weight 8.1t., 230,000 yuan of valencys), result: weight increases 2.5t, price increases 6.5 ten thousand yuan.
Thermal power be enclosed retarder under lubricant oil temperature of equilibrium condition the peak output that can transmit continuously.Thermal power should equal or be bordering on the power that real work is transmitted.(972 pages of < < Gear Transmission Design handbook > >)
Thermal power refers to input power when lubricating oil temperature is no more than allowable temperature under natural cool condition.Thermal power is the important parameter of design lubrication system, is the important evidence of selecting retarder.(design of < < Planetary Involute Gear and 230 pages of manufacture > >)
Oil temperature is too high is one of speed reducer fault very major reason, this be because: oil temperature high viscosity declines, local oil film breakdown, 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 raises oil temperature, forms vicious circle.Reduction gear box lubricant oil oil temperature allowable is about 70 ℃, and it is according to having two:
(1) German PPSC1290-MY type wind turbine gearbox: lubricating oil sump maximum temperature is 70 ℃;
(2) 70 ℃ of the highest oil temperatures (thermal power of < < gear of wind power speed-increasing gearbox is calculated case > > wind-power electricity generation 2003.3) of gear of wind power speed-increasing gearbox expectation
[summary of the invention]
The object of the invention: solve prior art () output shaft and adopt rolling bearing supporting, cost is high a lot of compared with sliding bearing, especially high-power, high pulling torque type; (2) gear-box self does not have heat sinking function, thereby the low defect of thermal power.
The planetary reduction box of a kind of intermediate water ice chest body zinc base alloy bearing supporting is provided.Implementer's case theoretical foundation:
(1) aeroengine main bearing adopt sliding bearing, speed reducer be assorted petty can not?
" plain bearing is simple in structure, easily manufactured, bearing capacity is large." (the refined < < of Wang Wen mechanical design handbook > > volume 3.21-4 page)
" under normal state, sliding bearing abrasion rate is very low." (492 pages of the practical bearing technology handbook of Bu Yan < < > >)
" casting Zine containing alloy be applicable in, the bearing of working under low speed (≤7-10m/s), heavy duty (25-30MPa), allowable contact stress σ=550MPa condition." (6 pages, Cheng great Xian < < mechanical design handbook > > bearing)
The key of technical solution of the present invention is: guarantee that zinc base alloy sliding supported condition face has enough clear gusolines, because: " totally, not having outer fork-like farm tool used in ancient China particle is the major reason that sliding bearing lost efficacy." (< < mechanical design handbook > > volume 4.27-227 page)
(2) according to the discussion that can make thermal power be not less than mechanical output about cooling heat radiator below, propose:
973 pages of < < Gear Transmission Design handbook > >: 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;
979 pages of < < Gear Transmission Design handbook > >: when oil temperature is controlled at 70 ℃ of left and right in cooling water flow and the enough senior general's casings of flow velocity, retarder thermal power P can improve 1.5 times.This be 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 ℃).
For achieving the above object, implementer's case that the present invention takes is as follows:
In described casing, be provided with the link of inner cylinder and nose circle lid, described inner cylinder flange is connected with casing output end face, described nose circle lid input end cylindrical 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, described built-in cylinder and nose circle lid peripheral hardware radiating fin, described casing and inner cylinder body are even thin-wall circular cylindrical shell;
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 inlet valve J of UNICOM's closed interlayer, the side of described casing is provided with the flowing water Valve C with closed interlayer UNICOM, and outlet valve place separately establishes the instrument and apparatus of a measurement water temperature;
Described nose circle lid endoporus supports input shaft with bearing;
Further, described differential-quasi-planet part device is in inner cylinder and nose circle lid attachments, comprise the sun gear being located on input shaft, planet wheel, spider gear shaft, the first ring gear and planet carrier, accurate sun gear, star-wheel there won't be any problem, foresight wheel shaft, the second ring gear and quasi-planet frame, described planet carrier internal spline connects with accurate sun gear external splines, described accurate sun gear together with planet carrier empty set on input shaft, described quasi-planet frame is fastened on the end face of nose circle lid, described first, two ring gears are adjacent two gear rings in ring gear, described ring gear 9 is connected on the disk of output shaft,
Again further, close-fitting the first wear-resisting ring on described output shaft neck, the first wear-resisting ring is bearing in the first zinc base alloy bearing, the first zinc base alloy bearing is fastened on inner cylinder output terminal endoporus, in output shaft, be provided with < < cylinder-disc type > > polyester oil suction sponge of " T " word section, cylindrical end and output shaft axis hole form a shoe cream room Q, described shoe cream room Q lubricant oil flows into alloy bearing and wear-resisting ring gap from output shaft aperture, and disk end is located on output shaft disk end face and communicates with the uniform radial hole of disc circumference,
Although each independent technical characteristics of the present invention is completely known, supports each other, and can produce following useful technique effect:
(1) outer wall that inner cylinder of the present invention and nose circle cover encloses the heat one side of the hot water connecing in formation closed interlayer and is discharged and taken away by flowing water Valve, passing on the other hand casing body is dispersed into outside casing, heat diffusion area spreads all over whole casing, by the adjusting to cooling water flow, can accomplish that thermal power is not less than mechanical output; The present invention is simple in structure, low cost of manufacture;
(2) advantage such as low, long service life of zinc base alloy Bearing Grinding loss rate is that rolling bearing is irreplaceable; The low 60-80% of price, internal diameter is more remarkable more greatly; Stable working, noise free, bearing capacity are large; Simple in structure, manufacture, easy accessibility; There is good shock-resistant and absorbing performance; Can save Bearing Steel 50-70%, the recyclable double teeming of old zinc base alloy sliding bearing.
[accompanying drawing explanation]
Fig. 1. embodiment of the present invention structural representation
[embodiment]
Below in conjunction with accompanying drawing, the present invention is encyclopaedized:
With reference to Fig. 1. the planet differential reduction gearbox of a kind of intermediate water ice chest body zinc base alloy bearing supporting, comprise casing 1 and be arranged in casing 1 and input shaft 15, differential-quasi-planet parts and the output shaft 5 of transmission successively, it is characterized in that:
In described casing 1, be provided with inner cylinder 2 and cover 13 link with nose circle, described inner cylinder 2 flanges are connected with casing 1 output end face, described nose circle covers 13 input end cylindricals and casing 1 input end endoporus close-fitting, the nose circle face that described nose circle covers 13 input end faces and casing 1 input end is tightly connected with same circle ring disk 18, described built-in cylinder 2 covers 13 peripheral hardware radiating fin with nose circle, and described casing 1 is even thin-wall circular cylindrical shell with inner cylinder 2 bodies;
Described inner cylinder 2 covers the outer wall of 13 links with nose circle and encloses and connect the airtight interlayer of formation with the inwall of casing 1, 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, and outlet valve place separately establishes the instrument and apparatus of a measurement water temperature;
Described nose circle covers bearing 14 supporting input shafts 15 for 13 endoporus;
Described differential-quasi-planet part device covers in 13 links at inner cylinder 2 and nose circle, comprise the sun gear 19 being located on input shaft 15, planet wheel 8, spider gear shaft 7, the first ring gear 91 and planet carrier 16, accurate sun gear 12, there won't be any problem star-wheel 10, foresight wheel shaft 11, the second ring gear 92 and quasi-planet frame 17, described planet carrier 16 internal splines connect with accurate sun gear 12 external spliness, described accurate sun gear 12 together with planet carrier 16 empty sets on input shaft 15, described quasi-planet frame 17 is fastened on the end face of nose circle lid 13, described first, two ring gears 91, the 92nd, adjacent two gear rings in ring gear 9, described ring gear 9 is connected on the disk of output shaft 5,
Close-fitting the first wear-resisting ring 6 on described output shaft 5 axle journals, the first wear-resisting ring 6 is bearing in the first zinc base alloy bearing 3, the first zinc base alloy bearing 3 is fastened on inner cylinder 2 output terminal endoporus, in output shaft 5, be provided with < < cylinder-disc type > > polyester oil suction sponge 4 of " T " word section, its cylindrical end sponge and output shaft 5 axis holes form a shoe cream room Q, described shoe cream room Q lubricant oil flows into alloy bearing and wear-resisting ring gap from output shaft 5 apertures, and being located at the radial hole uniform with disc circumference on output shaft 5 disk end faces, disk end sponge communicates, polyester oil suction sponge has excellent mechanical strength: wear-resisting, wear-corrosion resistance, high temperature resistant, stretchability is strong, good springiness and unique oil resistant are anti-aging, the characteristic of anti-solvent.After casing oil sump lubricant oil is sucked by < < cylinder-disc type > > polyester oil suction sponge filter core, the oil that its column part stores relies on gravity constantly to drip, accumulate in shoe cream room Q, by little oilhole on output shaft, enter the rubbing surface between sliding bearing and wear-resisting ring, lubricant oil is tucked inside the sleeve and is filled in a steady stream, guarantees that rubbing surface has very long working life.
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. the planet differential reduction gearbox of intermediate water ice chest body zinc base alloy bearing supporting, comprise casing (1) and be arranged in casing (1) and the input shaft of transmission (15), differential-quasi-planet parts and output shaft (5) successively, it is characterized in that:
In described casing (1), be provided with the link of inner cylinder (2) and nose circle lid (13), described inner cylinder (2) flange is connected with casing (1) output end face, described nose circle lid (13) input end cylindrical and casing (1) input end endoporus close-fitting, the same circle ring disk for nose circle face (18) of described nose circle lid (13) input end face and casing (1) input end is tightly connected, described built-in cylinder (2) and nose circle lid (13) peripheral hardware radiating fin, described casing (1) is even thin-wall circular cylindrical shell with inner cylinder (2) body;
Described inner cylinder (2) encloses to connect with the nose circle lid outer wall of (13) 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 the flowing water Valve (C) with closed interlayer UNICOM, and outlet valve place separately establishes the instrument and apparatus of a measurement water temperature;
Described nose circle lid (13) bearing for endoporus (14) supporting input shaft (15);
Described differential-quasi-planet part device is in inner cylinder (2) and nose circle lid (13) link, comprise the sun gear (19) being located on input shaft (15), planet wheel (8), spider gear shaft (7), the first ring gear (91) and planet carrier (16), accurate sun gear (12), star-wheel (10) there won't be any problem, foresight wheel shaft (11), the second ring gear (92) and quasi-planet frame (17), described planet carrier (16) internal spline connects with accurate sun gear (12) external splines, described accurate sun gear (12) together with planet carrier (16) empty set on input shaft (15), described quasi-planet frame (17) is fastened on the end face of nose circle lid (13), described first, two ring gears (91, 92) be adjacent two gear rings in ring gear (9), described ring gear (9) is connected on the disk of output shaft (5),
Close-fitting the first wear-resisting ring (6) on described output shaft (5) axle journal, the first wear-resisting ring (6) is bearing in the first zinc base alloy bearing (3), the first zinc base alloy bearing (3) is fastened on inner cylinder (2) output terminal endoporus, in output shaft (5), be provided with < < cylinder-disc type > > polyester oil suction sponge (4) of " T " word section, its cylindrical end sponge and output shaft (5) axis hole form a shoe cream room (Q), described shoe cream room (Q) lubricant oil flows into alloy bearing and wear-resisting ring gap from output shaft (5) aperture, and disk sponge end is located at the radial hole uniform with disc circumference on output shaft (5) disk end face and communicates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396935.6A CN104132125A (en) | 2014-08-06 | 2014-08-06 | Interlayer water-cooling box planet differential reduction gearbox supported by zinc-based alloy bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396935.6A CN104132125A (en) | 2014-08-06 | 2014-08-06 | Interlayer water-cooling box planet differential reduction gearbox supported by zinc-based alloy bearings |
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| Publication Number | Publication Date |
|---|---|
| CN104132125A true CN104132125A (en) | 2014-11-05 |
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ID=51804921
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410396935.6A Pending CN104132125A (en) | 2014-08-06 | 2014-08-06 | Interlayer water-cooling box planet differential reduction gearbox supported by zinc-based alloy bearings |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414566A (en) * | 2015-12-25 | 2016-03-23 | 武汉赛特曼机电技术发展有限公司 | Differential spindle box of vertical lathe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1994621A (en) * | 2006-12-02 | 2007-07-11 | 包头市北工机械有限公司 | Composite layered water-cooling forced sulfurized speed reducer for smelting, steel continuous casting and rolling |
| CN101581351A (en) * | 2009-06-23 | 2009-11-18 | 吴声震 | Novel planetary reduction gear |
| CN102312961A (en) * | 2011-03-01 | 2012-01-11 | 吴小杰 | Planetary differential speed reducer for earth pressure balance shield machine |
| CN102312962A (en) * | 2011-03-01 | 2012-01-11 | 吴小杰 | Bevel gear-planetary differential large-transmission-ratio speed reducer for mining mill |
| CN102678894A (en) * | 2012-05-27 | 2012-09-19 | 付克敏 | Vent cap mechanism of transmission machinery gear case |
-
2014
- 2014-08-06 CN CN201410396935.6A patent/CN104132125A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1994621A (en) * | 2006-12-02 | 2007-07-11 | 包头市北工机械有限公司 | Composite layered water-cooling forced sulfurized speed reducer for smelting, steel continuous casting and rolling |
| CN101581351A (en) * | 2009-06-23 | 2009-11-18 | 吴声震 | Novel planetary reduction gear |
| CN102312961A (en) * | 2011-03-01 | 2012-01-11 | 吴小杰 | Planetary differential speed reducer for earth pressure balance shield machine |
| CN102312962A (en) * | 2011-03-01 | 2012-01-11 | 吴小杰 | Bevel gear-planetary differential large-transmission-ratio speed reducer for mining mill |
| CN102678894A (en) * | 2012-05-27 | 2012-09-19 | 付克敏 | Vent cap mechanism of transmission machinery gear case |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414566A (en) * | 2015-12-25 | 2016-03-23 | 武汉赛特曼机电技术发展有限公司 | Differential spindle box of vertical lathe |
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Application publication date: 20141105 |