CN104154220A - Reduction box with small tooth difference for interlayer water-cooling tank zinc-based alloy bearings - Google Patents
Reduction box with small tooth difference for interlayer water-cooling tank zinc-based alloy bearings Download PDFInfo
- Publication number
- CN104154220A CN104154220A CN201410396932.2A CN201410396932A CN104154220A CN 104154220 A CN104154220 A CN 104154220A CN 201410396932 A CN201410396932 A CN 201410396932A CN 104154220 A CN104154220 A CN 104154220A
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- China
- Prior art keywords
- output shaft
- bearing
- ring
- casing
- inner cylinder
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Classifications
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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
-
- 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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/031—Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention provides a reduction box with small tooth difference for interlayer water-cooling tank zinc-based alloy bearings. The reduction box comprises a tank body, an input shaft, a transmission mechanism and an output shaft, and is characterized in that an inner cylinder and circular end cover connecting part is arranged in the tank body, an inner cylinder is connected with the tank body, the input end of a circular end cover is in close fit with an inner hole of the input end of the tank body, the circular end cover is connected with the tank body through a circular ring plate, an interlayer is formed between the inner wall of the tank body and the outer wall of the inner cylinder and circular end cover connecting part, and a water inlet valve and a water drain valve are arranged on the top and the lateral of the tank body; the transmission mechanism comprises a planet wheel, an inner tooth ring and an eccentric bearing, a wearing ring on the output shaft is supported in one zinc-based alloy bearing, 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 of the output shaft, the other zinc-based alloy bearing is arranged in a uniform load ring, and an output shaft zinc-based alloy bearing simple support structure is formed. The reduction box has the technical advantages that the structure is simple and constructing cost is low; water flow is adjusted so that thermal power can approach to mechanical power; the alloy bearings are reliable in lubrication, cost can be lowered by 60-80 percent, and steel for the bearings can be saved by 50-70 percent.
Description
[technical field]
The present invention relates to the improvement of K-V-H mechanism (N-type) few teeth difference technology in universal planetary technical field, be specifically related to the improvement of cycloid reduction case, the few teeth difference speed reducer of a kind of intermediate water ice chest body zinc base alloy bearing supporting.
[background technique]
Universal planetary transmission mainly comprises 2K-H negative mechanisms (NGW type) and the large class of K-V-H mechanism (N-type) two, and K-V-H mechanism (N-type) comprises cycloid and involute less tooth difference.
Research discovery, existing universal planetary drive technology has two deficiencies:
(1) output shaft adopts rolling bearing supporting, and cost is high a lot of compared with sliding bearing, especially high-power, high pulling torque type: it is according to seeing " design of Planetary Involute Gear and manufacture " 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 the 3.14-432 of large elder generation " mechanical design handbook " 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 Reducer With Involute Gear of Less-tooth Difference does not adopt cooling measure, only rely on natural heat dissipation to cause thermal power low, make user have to strengthen one, two machine model and carry out type selecting, many mechanical theory monographs are exactly to specify so, its result must increase expense, power is larger, expense increase is more: as specified HJW-35B type (4.78 ten thousand yuan of thermal power 40kW, weight 1042kg, valencys), now strengthen a machine model and select HJW-40B (6.42 ten thousand yuan of thermal power 51kW, weight 1365kg, valencys); As strengthen two machine models and select HJW-45B (8.8 ten thousand yuan of thermal power 62kW, weight 1800kg, valencys).
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.(" Gear Transmission Design handbook " 972 pages)
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 manufacture " 230 pages)
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 DEG C, and it is according to having two:
(1) German PPSC1290-MY type wind turbine gearbox: lubricating oil sump maximum temperature is 70 DEG C;
(2) 70 DEG C of the highest oil temperatures (" thermal power of gear of wind power speed-increasing gearbox is calculated case " wind-power electricity generation 2003.3) that gear of wind power speed-increasing gearbox is expected
[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 few teeth difference speed reducer 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." (Wang Wenbin " mechanical design handbook " volume 3.21-4 page)
" under normal state, sliding bearing abrasion rate is very low." (492 pages of Bu Yan " practical bearing technology handbook ")
" 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: ensure 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) propose according to the discussion that can make thermal power be not less than mechanical output about cooling heat radiator below:
" 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 " 979 pages: in the time that oil temperature is controlled at 70 DEG C 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 DEG C).
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, described nose circle lid input end face is connected with same circle ring disk with the nose circle face of casing input end, 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, and described casing top is provided with the inlet valve of UNICOM's closed interlayer, and the side of described casing is provided with the flowing water Valve with closed interlayer UNICOM;
Described nose circle lid inner side connects wheel hub, and described wheelboss inner hole supports input shaft with bearing;
Further, described transmission part comprises two phase differences 180 ° of planet wheels, ring gears and is located at the capacity eccentric bearing of input shaft shaft extension end, and described ring gear is fastened on the input end endoporus of inner cylinder;
Again further, described pin axle type output block comprises only uniform pin and all carry ring of output shaft, 6-12, and described pin two ends connect respectively output shaft disk and all carry ring and form cage output shaft, wherein:
On described output shaft, export axle journal and tighten and join the first wear-resisting ring, the first wear-resisting ring is bearing in the first zinc base alloy bearing, and the first zinc base alloy bearing is fastened on inner cylinder output terminal endoporus;
In described output shaft, be provided with " cylinder-disc type " polyester oil suction sponge that section is " T " font, its cylindrical end is placed in axis hole, and disk end is located on output shaft disk, in the uniform radial hole of output shaft disk, has polyester oil suction sponge to communicate with it;
Described fastening the second zinc base alloy bearing of ring endoporus that all carries, the second zinc base alloy bearing is bearing on the second wear-resisting ring, the second wear-resisting ring and wheel hub cylindrical close-fitting, the maximum outside diameter of described wheel hub is less than the external diameter of the second wear-resisting ring.
Although the each independent technical characteristics of the present invention is completely known, supports each other, and can produce following useful technique effect:
(1) outer wall of inner cylinder of the present invention and nose circle lid encloses the heat that connects the hot water forming in closed interlayer and is discharged and taken away by flowing water Valve on the one hand, 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.
[brief description of the drawings]
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 few teeth difference speed reducer 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 14, transmission part and the pin axle type output block of transmission successively, it is characterized in that:
In described casing 1, be provided with the link of inner cylinder 2 and nose circle lid 18, described inner cylinder 2 flanges are connected with casing 1 output end face, described nose circle lid 18 input end cylindricals and casing 1 input end endoporus close-fitting, the nose circle face of described nose circle lid 18 input end faces and casing 1 input end is tightly connected with same circle ring disk 12, described inner cylinder 2 and nose circle lid 18 peripheral hardware radiating fin, described casing 1 is even thin-wall circular cylindrical shell with inner cylinder 2 bodies;
Described inner cylinder 2 encloses to connect with the outer wall of nose circle lid 18 links 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 18 inner sides connect wheel hub 13, and described wheel hub 13 endoporus support input shaft 14 with bearing 11;
Described transmission part comprises 180 ° of planet wheels 7 of two phase differences, ring gear 8 and is located at the capacity eccentric bearing 10 of input shaft 14 shaft extension ends, described ring gear 8 is fastened on the input end endoporus of inner cylinder 2, makes active force directly point to casing footing and can not produce tilting moment;
Described pin axle type output block comprises only uniform pin 9 and all carry ring 17 of output shaft 5,6-12, and described pin 9 two ends connect respectively output shaft 5 disks and all carry ring 17 and form cage output shafts, wherein:
On described output shaft 5, export axle journal and tighten and join the first wear-resisting ring 3, the first wear-resisting rings 3 and be bearing in the first zinc base alloy bearing 6, the first zinc base alloy bearing 6 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 disk end sponge is located at the radial hole uniform with disc circumference on output shaft 5 disk end faces and communicates, polyester oil suction sponge has excellent mechanical strength: wear-resisting, wear-corrosion resistance, high temperature resistant, stretchability strong, good springiness and unique oil resistant is 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, enter the rubbing surface between sliding bearing and wear-resisting ring by little oilhole on output shaft, lubricant oil in a steady stream Fill fills, and guarantees that rubbing surface has very long working life.
Described fastening the second zinc base alloy bearing 16 of ring 17 endoporus that all carries, the second zinc base alloy bearing 16 is bearing on the second wear-resisting ring 15, the second wear-resisting ring 15 and wheel hub 13 cylindrical close-fittings, the maximum outside diameter of described wheel hub 13 is less than the external diameter of the second wear-resisting ring 15, its role is to assemble smoothly all carry ring 17.
Zinc base alloy bearing supporting for pin axle type output block both sides, advantage is that to change traditional cantilever be freely supported structure.
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 few teeth difference speed reducer 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 (14), transmission part and pin axle type output block successively, it is characterized in that:
In described casing (1), be provided with the link of inner cylinder (2) and nose circle lid (18), described inner cylinder (2) flange is connected with casing (1) output end face, described nose circle lid (18) input end cylindrical and casing (1) input end endoporus close-fitting, the same circle ring disk for nose circle face (12) of described nose circle lid (18) input end face and casing (1) input end is tightly connected, described inner cylinder (2) and nose circle lid (18) 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 outer wall of nose circle lid (18) 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 (18) inner side connects wheel hub (13), described wheel hub (13) bearing for endoporus (11) supporting input shaft (14);
Described transmission part comprises 180 ° of planet wheels of two phase differences (7), ring gear (8) and is located at the capacity eccentric bearing (10) of input shaft (14) shaft extension end, and described hypocycloid gear ring (8) is fastened on the input end endoporus of inner cylinder (2);
Described pin axle type output block comprises only uniform pin (9) and all carry ring (17) of output shaft (5), 6-12, described pin (9) two ends connect respectively output shaft (5) disk and all carry ring (17) formation cage output shaft, wherein:
The upper output of described output shaft (5) axle journal tightens joins the first wear-resisting ring (3), the first wear-resisting ring (3) is bearing in the first zinc base alloy bearing (6), and the first zinc base alloy bearing (6) 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 end sponge is located at the radial hole uniform with disc circumference on output shaft (5) disk end face and communicates;
Described fastening the second zinc base alloy bearing (16) of ring (17) endoporus that all carries, the second zinc base alloy bearing (16) is bearing on the second wear-resisting ring (15), the second wear-resisting ring (15) and wheel hub (13) cylindrical close-fitting, the maximum outside diameter of described wheel hub (13) is less than the external diameter of the second wear-resisting ring (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396932.2A CN104154220A (en) | 2014-08-06 | 2014-08-06 | Reduction box with small tooth difference for interlayer water-cooling tank zinc-based alloy bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396932.2A CN104154220A (en) | 2014-08-06 | 2014-08-06 | Reduction box with small tooth difference for interlayer water-cooling tank zinc-based alloy bearings |
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| Publication Number | Publication Date |
|---|---|
| CN104154220A true CN104154220A (en) | 2014-11-19 |
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ID=51879799
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410396932.2A Pending CN104154220A (en) | 2014-08-06 | 2014-08-06 | Reduction box with small tooth difference for interlayer water-cooling tank zinc-based alloy bearings |
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|---|---|
| CN (1) | CN104154220A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565222A (en) * | 2015-01-02 | 2015-04-29 | 李响 | Interlayer body zero-return-difference type general inner cycloidal reduction box |
| CN104565309A (en) * | 2015-01-02 | 2015-04-29 | 李响 | Interlayer body zero-return-difference type general small-tooth-difference reduction box |
| CN104565221A (en) * | 2015-01-02 | 2015-04-29 | 李响 | Interlayer body zero-return-difference type general cycloidal reduction box |
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| 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 |
| CN101135358A (en) * | 2006-09-01 | 2008-03-05 | 吴小杰 | Engaged surface adjustable planet wheel decelerator |
| CN102192276A (en) * | 2011-04-02 | 2011-09-21 | 吴小杰 | Novel vertical type needle-sleeve-free cycloid reducer |
| CN102678894A (en) * | 2012-05-27 | 2012-09-19 | 付克敏 | Vent cap mechanism of transmission machinery gear case |
| CN103291846A (en) * | 2012-02-22 | 2013-09-11 | 周晓汀 | Small tooth difference planetary transmission device adopting pin hole output and provided with adjustable clearance |
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2014
- 2014-08-06 CN CN201410396932.2A patent/CN104154220A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101135358A (en) * | 2006-09-01 | 2008-03-05 | 吴小杰 | Engaged surface adjustable planet wheel decelerator |
| 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 |
| CN102192276A (en) * | 2011-04-02 | 2011-09-21 | 吴小杰 | Novel vertical type needle-sleeve-free cycloid reducer |
| CN103291846A (en) * | 2012-02-22 | 2013-09-11 | 周晓汀 | Small tooth difference planetary transmission device adopting pin hole output and provided with adjustable clearance |
| CN102678894A (en) * | 2012-05-27 | 2012-09-19 | 付克敏 | Vent cap mechanism of transmission machinery gear case |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565222A (en) * | 2015-01-02 | 2015-04-29 | 李响 | Interlayer body zero-return-difference type general inner cycloidal reduction box |
| CN104565309A (en) * | 2015-01-02 | 2015-04-29 | 李响 | Interlayer body zero-return-difference type general small-tooth-difference reduction box |
| CN104565221A (en) * | 2015-01-02 | 2015-04-29 | 李响 | Interlayer body zero-return-difference type general cycloidal reduction box |
| CN104565221B (en) * | 2015-01-02 | 2017-05-03 | 李响 | Interlayer body zero-return-difference type general cycloidal reduction box |
| CN104565222B (en) * | 2015-01-02 | 2017-05-03 | 李响 | Interlayer body zero-return-difference type general inner cycloidal reduction box |
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Application publication date: 20141119 |