CN104373569A - Small tooth difference reduction gearbox with interlayer air cooling box body supported by zinc base alloy bearings - Google Patents
Small tooth difference reduction gearbox with interlayer air cooling box body supported by zinc base alloy bearings Download PDFInfo
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- CN104373569A CN104373569A CN201410396911.0A CN201410396911A CN104373569A CN 104373569 A CN104373569 A CN 104373569A CN 201410396911 A CN201410396911 A CN 201410396911A CN 104373569 A CN104373569 A CN 104373569A
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- bearing
- box body
- output shaft
- base alloy
- casing
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 33
- 239000000956 alloy Substances 0.000 title claims abstract description 33
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000011701 zinc Substances 0.000 title claims abstract description 27
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 27
- 239000011229 interlayer Substances 0.000 title claims abstract description 18
- 238000001816 cooling Methods 0.000 title abstract description 6
- 230000009467 reduction Effects 0.000 title abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 239000003638 chemical reducing agent Substances 0.000 claims description 10
- 239000000314 lubricant Substances 0.000 claims description 7
- 229920000728 polyester Polymers 0.000 claims description 6
- 239000006071 cream Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000005461 lubrication Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 27
- 238000013461 design Methods 0.000 description 10
- 238000005266 casting Methods 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 102000003712 Complement factor B Human genes 0.000 description 1
- 108090000056 Complement factor B Proteins 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
-
- 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
- F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
-
- 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
- F16H2700/00—Transmission housings and mounting of transmission components therein; Cooling; Lubrication; Flexible suspensions, e.g. floating frames
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
A small tooth difference reduction gearbox with an interlayer air cooling box body supported by zinc base alloy bearings comprises the box body, an input shaft, a transmission mechanism and an output shaft. The small tooth difference reduction gearbox with the interlayer air cooling box body supported by the zinc base alloy bearings is characterized in that a connecting piece of an inner cylinder and a circular end cover is arranged in the box body, the inner cylinder is connected with the box body, the input end of the circular end cover is in close fit with an inner hole in the input end of the box body, the circular end cover and the box body are connected through an annular disk, the inner wall of the box body and the outer wall of the connecting piece of the inner cylinder and the circular end cover form an interlayer, an exhausting window is arranged on the top of the box body, and a draught fan is arranged on the side portion of the box body; the transmission mechanism comprises planet gears, an inner gear ring and eccentric bearings; an abrasion-resistant ring on the output shaft is supported in the corresponding zinc base alloy bearing, a sponge with a T-shaped cross section is arranged in the output shaft, the sponge in the output shaft and a shaft hole constitute an oil storage cavity Q, a zinc base alloy bearing is arranged in a load balance ring, and accordingly an output shaft zinc base alloy bearing simple support structure is formed. The small tooth difference reduction gearbox has the advantages that the structure is simple, and manufacturing cost is low; the air capacity is adjusted to enable thermal power to be close to mechanical power; alloy bearing lubrication is reliable, bearing cost is lowered by 60%-80%, and bearing steel can be saved by 50%-70%.
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 involute less tooth difference speed reducer, 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 finds, existing universal planetary drive technology has two deficiencies:
(1) output shaft adopts rolling bearing supporting, and cost comparatively sliding bearing is high a lot, especially high-power, high pulling torque type: it is according to seeing " design and manufaction of Planetary Involute Gear " chapter 12 cement ball mill retarder calculated examples:
" bearing due to (planetary reducer) output shaft does not bear radial working load (only bearing the deadweight of output planetary rack device), and thus 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 weight 624kg, price 44450 yuan.As changed casting Zine containing alloy sliding bearing into, weight about 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 than copper by 40%, cost is lower than tin bronze by more than 40%;
(3) working life is tin bronze 2 ~ 3 times, 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, and thus thermal power is low:
The magnitude relationship of thermal power to bearing capacity, thus very important, especially high-power, high pulling torque type.Its theoretical foundation sees into large elder generation " 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 heat radiation bad, thus requires good lubrication, even needs to take cooling to urge to execute.”
Prior art 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.
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)
High oil temperature is one of speed reducer fault very major reason, this is because: oil temperature high viscosity declines, 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 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) 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
[summary of the invention]
The object of the invention: solve prior art (one) output shaft and adopt rolling bearing supporting, cost comparatively sliding bearing is high a lot, especially high-power, high pulling torque type; (2) gear-box self does not have heat sinking function, the defect that thus thermal power is low.
The few teeth difference speed reducer of a kind of interlayer air-cooled casing zinc base alloy bearing supporting is provided.Implementer's case theoretical foundation:
(1) aeroplane engine main bearing adopt sliding bearing, speed reducer be assorted petty can not?
" plain bearing structure is simple, easily manufactured, bearing capacity is large." (Wang Wenbin " mechanical design handbook " rolls up 3.21-4 page)
" in normal state, sliding bearing abrasion rate is very low." (Bu Yan " practical bearing technology handbook " 492 pages)
" casting Zine containing alloy be applicable in, low speed (≤7-10m/s), heavy duty (25-30MPa), the bearing that works under 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 there are enough clear gusolines in zinc base alloy sliding supported condition face, because: " totally, there is not outer fork-like farm tool used in ancient China particle to be the major reason that sliding bearing lost efficacy." (" mechanical design handbook " rolls up 4.27-227 page)
(2) propose 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 " 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)
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, 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 exhausting window of UNICOM's closed interlayer, and the side of described casing is provided with the axial-flow blower with closed interlayer UNICOM;
Connect wheel hub inside described nose circle lid, described wheelboss inner hole bearing supports input shaft;
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 axle stretch end, and described ring gear is fastened on the input end endoporus of inner cylinder;
Again further, described pin axle type output block comprises the only uniform pin of output shaft, 6-12 and all carries ring, and described pin two ends connect output shaft disk respectively and all carry ring and form cage output shaft, wherein:
Described output shaft exports axle journal to 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;
Be provided with " cylinder-disc type " the polyester oil suction sponge of section in " T " font in described output shaft, its cylindrical end is placed in axis hole, and disk end is located on output shaft disk, has polyester oil suction sponge to communicate with it in the radial hole that output shaft disk is uniform;
Describedly all carry the fastening second zinc base alloy bearing of ring endoporus, the second zinc base alloy bearing is bearing on the second wear-resisting ring, and 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 each independent technical characteristics of the present invention is completely known, support each other, and can following Advantageous Effects be produced:
(1) heat in closed interlayer is discharged by exhausting window on the one hand, and the even thin walled cylinder passing to box-like body is on the other hand dispersed into outside casing, and cold wind capacity is large, heat diffusion area is large throughout whole casing, thermal power, and structure is simple, low cost of manufacture; By the correct calculating to air quantity, wind speed, can accomplish that thermal power is not less than mechanical output;
(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 large more remarkable; Stable working, noise free, bearing capacity are large; Structure is simple, manufacture, easy accessibility; There is good shock-resistant and absorbing performance; Bearing Steel 50-70% can be saved, the recyclable double teeming of old zinc base alloy sliding bearing.
[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 the few teeth difference speed reducer of Fig. 1, the supporting of 2 one kinds of interlayer air-cooled casing zinc base alloy bearings, comprise casing 1 and be arranged at the input shaft 14 of also transmission successively in casing 1, transmission part and pin axle type output block, it is characterized in that:
The link of inner cylinder 2 and nose circle lid 18 is provided with in described casing 1, 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 nose circle face of described nose circle lid 18 input end face and casing 1 input end is tightly connected with same circle ring disk 11, 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;
Connect wheel hub 11 inside described nose circle lid 18, described wheel hub 11 endoporus bearing 12 supports input shaft 14;
Described transmission part comprises two phase differences, 180 ° of planet wheels 7, ring gear 8 and is located at the capacity eccentric bearing 10 of input shaft 14 axle stretch end, 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 the only uniform pin of output shaft 5,6-12 9 and all carries ring 17, and described pin 9 two ends connect output shaft 5 disk respectively and all carry ring 17 and form cage output shaft, wherein:
Described output shaft 5 exports axle journal to tighten and join the first wear-resisting ring 3, first wear-resisting ring 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;
" cylinder one disc type " polyester oil suction sponge 4 of " T " word section is provided with in output shaft 5, 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, polyester oil suction sponge has excellent mechanical strength: wear-resisting, wear-corrosion resistance, high temperature resistant, stretchability strong, the oil resistant of good springiness and uniqueness is anti-aging, the characteristic of solvent resistant.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, the rubbing surface between sliding bearing and wear-resisting ring is entered by oilhole little on output shaft, lubricant oil in a steady stream Fill fills, and guarantees that rubbing surface has very long working life.
Describedly all carry the fastening second zinc base alloy bearing 16 of ring 17 endoporus, second zinc base alloy bearing 16 is bearing on the second wear-resisting ring 15, second wear-resisting ring 15 and wheel hub 11 cylindrical close-fitting, the maximum outside diameter of described wheel hub 11 is less than the external diameter of the second wear-resisting ring 15, its role is to assemble smoothly all carry ring.
The zinc base alloy bearing supporting of 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, anyly all belongs to protection scope of the present invention to the scheme after simple transformation of the present invention.
Claims (1)
1. the few teeth difference speed reducer of interlayer air-cooled casing zinc base alloy bearing supporting, comprise casing (1) and to be arranged in casing (1) and the input shaft (14) of transmission successively, transmission part and pin axle type output block, it is characterized in that:
The link of inner cylinder (2) and nose circle lid (18) is provided with in described casing (1), 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 nose circle face of described nose circle lid (18) input end face and casing (1) input end is tightly connected with same circle ring disk (13), described inner cylinder (2) and nose circle lid (18) peripheral hardware radiating fin, described casing (1) and inner cylinder (2) body are even thin-wall circular cylindrical shell;
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 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 nose circle lid (18) inner side connects wheel hub (11), described wheel hub (11) endoporus bearing (12) supporting input shaft (14);
Described transmission part comprises two phase differences, 180 ° of planet wheels (7), ring gear (8) and is located at the capacity eccentric bearing (10) of input shaft (14) axle stretch 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 the only uniform pin (9) of output shaft (5), 6-12 and all carries ring (17), described pin (9) two ends connect output shaft (5) disk respectively and all carry ring (17) and form cage output shaft, wherein:
Described output shaft (5) upper output axle journal tightens joins the first wear-resisting ring (3), 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;
" cylinder-disc type " polyester oil suction sponge (4) of " T " word section is provided with in output shaft (5), 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 radial hole uniform with disc circumference on output shaft (5) disk end face and communicates;
Describedly all carry the fastening second zinc base alloy bearing (16) of ring (17) endoporus, second zinc base alloy bearing (16) is bearing on the second wear-resisting ring (15), second wear-resisting ring (15) and wheel hub (11) cylindrical close-fitting, the maximum outside diameter of described wheel hub (11) is less than the external diameter of the second wear-resisting ring (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396911.0A CN104373569A (en) | 2014-08-06 | 2014-08-06 | Small tooth difference reduction gearbox with interlayer air cooling box body supported by zinc base alloy bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396911.0A CN104373569A (en) | 2014-08-06 | 2014-08-06 | Small tooth difference reduction gearbox with interlayer air cooling box body supported by zinc base alloy bearings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104373569A true CN104373569A (en) | 2015-02-25 |
Family
ID=52552658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410396911.0A Pending CN104373569A (en) | 2014-08-06 | 2014-08-06 | Small tooth difference reduction gearbox with interlayer air cooling box body supported by zinc base alloy bearings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104373569A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2751264A (en) * | 1954-01-21 | 1956-06-19 | Gen Electric | Self-lubricating journal pin |
| CN2415209Y (en) * | 1999-11-23 | 2001-01-17 | 陶刚 | Jacket water-cooled continuous casting withdrawal straightening machine speed reducer |
| CN102192278A (en) * | 2011-04-02 | 2011-09-21 | 吴小杰 | Novel vertical type dynamic balance needle-sleeve-free cycloid reducer |
| CN102889338A (en) * | 2011-07-17 | 2013-01-23 | 吴小杰 | Novel star wheel speed reducer |
| JP2013082320A (en) * | 2011-10-11 | 2013-05-09 | Toyota Motor Corp | Wheel braking and driving device |
-
2014
- 2014-08-06 CN CN201410396911.0A patent/CN104373569A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2751264A (en) * | 1954-01-21 | 1956-06-19 | Gen Electric | Self-lubricating journal pin |
| CN2415209Y (en) * | 1999-11-23 | 2001-01-17 | 陶刚 | Jacket water-cooled continuous casting withdrawal straightening machine speed reducer |
| CN102192278A (en) * | 2011-04-02 | 2011-09-21 | 吴小杰 | Novel vertical type dynamic balance needle-sleeve-free cycloid reducer |
| CN102889338A (en) * | 2011-07-17 | 2013-01-23 | 吴小杰 | Novel star wheel speed reducer |
| JP2013082320A (en) * | 2011-10-11 | 2013-05-09 | Toyota Motor Corp | Wheel braking and driving device |
Non-Patent Citations (1)
| Title |
|---|
| 李德玉: "《机械工程材料学》", 28 February 2002 * |
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