CN104295723A - Dynamic balance few tooth difference speed reducer for zinc base alloy bearing supporting - Google Patents
Dynamic balance few tooth difference speed reducer for zinc base alloy bearing supporting Download PDFInfo
- Publication number
- CN104295723A CN104295723A CN201410396923.3A CN201410396923A CN104295723A CN 104295723 A CN104295723 A CN 104295723A CN 201410396923 A CN201410396923 A CN 201410396923A CN 104295723 A CN104295723 A CN 104295723A
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- China
- Prior art keywords
- bearing
- output shaft
- base alloy
- ring
- wear
- 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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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 31
- 239000000956 alloy Substances 0.000 title claims abstract description 31
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000011701 zinc Substances 0.000 title claims abstract description 25
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 25
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 239000006071 cream Substances 0.000 claims description 7
- 239000000314 lubricant Substances 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 6
- 238000005266 casting Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 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
- 238000005299 abrasion Methods 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
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 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
- 238000005260 corrosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses a dynamic balance few tooth difference speed reducer for zinc base alloy bearing supporting. The dynamic balance few tooth difference speed reducer comprises a box body, a transmission part and an output part, and is characterized in that the input end of the box body is connected with a bearing supporting input shaft for a circular end cover hub inner hole; the transmission part comprises four planet wheels, an inner gear ring and an eccentric bearing, and the inner gear ring is fastened to the inner hole of the input end of the box body; the output part comprises an output shaft, a pin and a load balancing ring, wherein a wear-resistant ring arranged on the output shaft is supported in a zinc base alloy bearing which is connected into the output end of the box body; a sponge with the T-shaped section is arranged in the output shaft, the inner hole of the load balancing ring is connected with the zinc base alloy bearing which is supported by a second wear-resistant ring, and the second wear-resistant ring is arranged on the outer circle of a hub. The dynamic balance few tooth difference speed reducer has the technical advantages that the price of the zinc base alloy bearing can be reduced by 60% to 80%; work is stable, no noise is produced, the radial size is small, and the impact resistance and bearing force are large; the service life is long; the structure is simple, and detaching and assembling are convenient; the high impact resistance and good shock absorption performance are achieved; the dynamic rotation balance can be achieved.
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 little tooth difference speed reducer output shaft block bearing, the dynamic balancing little tooth difference speed reducer of a kind of zinc base alloy bearing supporting.
[background technique]
Universal planetary transmission 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.The output shaft of existing universal planetary transmission all adopts rolling bearing to support, and comparatively sliding bearing is high a lot of for the price of rolling bearing, especially high-power, high pulling torque type.
Research finds, universal planetary transmission output shaft can adopt sliding supported condition, as long as ensure that there is enough, clean lubricant oil in sliding supported condition face, this is that " 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." (" design and manufaction of Planetary Involute Gear " chapter 12 calculated examples)
Output shaft is if use sliding supported condition instead, and its Advantageous Effects is that bearing price can save 60-80%:
Through looking into, what above-mentioned calculated example was selected is the light ball bearing 9707/780 of single-row spy, and two bearings amounts to heavy 624kg, valency 44450 yuan.As changed casting Zine containing alloy sliding bearing into, weight about can alleviate 500kg, save nearly 40,000 yuan.
The advantage of casting Zine containing alloy sliding bearing is:
1, good casting property, foundry goods is fine and close, and the little heat conductivity of friction factor is higher, and finish turning surface roughness can reach 1.6;
2, weight ratio copper is light by 40%, and 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;
4, have nonmagnetic, no-spark performance, in inflammable and explosive dangerous situation safety.
[summary of the invention]
Aeroplane engine main bearing can adopt sliding bearing, speed reducer be assorted petty can not?
The object of the invention is, the rolling bearing providing zinc base alloy bearing to replace existing little tooth difference speed reducer output shaft to adopt, the dynamic balancing little tooth difference speed reducer of a kind of zinc base alloy bearing supporting.
The theoretical foundation that sliding bearing can replace rolling bearing is as follows:
" plain bearing structure is simple, easily manufactured, bearing capacity large, but high stability is poor, easy bad student's oil whip." (Wang Wenbin " mechanical design handbook " rolls up 3.21-4 page)
" in normal state, sliding bearing abrasion rate is very low, and the swarf particles of formation is small-sized, and quantity is also few." (Bu Yan " practical bearing technology handbook " 492 pages)
" aeroplane engine main bearing adopts general sliding bearing; parameter: specific pressure allowable [p]=12-22 (MPa); linear velocity allowable [v]=8-10 (m/s), [pv] allowable value≤80 (MPa) (m/s)." (Bu Yan " practical bearing technology handbook " 349 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." outer fork-like farm tool used in ancient China particle totally, is not had to be the major reason that sliding bearing lost efficacy." (" mechanical design handbook " rolls up 4.27-227 page)
Described casing input end face connects nose circle lid, and described nose circle lid endoporus connects wheel hub, and described input end face wheelboss inner hole bearing supports input shaft, and described nose circle lid input end face connects small end cover;
Further, described transmission part comprises two phase differences 180 ° of planet wheels, ring gears and is located at input shaft axle stretch end capacity eccentric bearing, and described ring gear is fastened on casing input end endoporus, makes active force directly point to casing footing and can not produce tilting moment;
Again further, described pin axle type output block comprises output shaft, pin and all carries ring, and described pin two ends connect output shaft disk respectively and all carry ring and form cage output shaft;
Described output axle journal tightens joins the first wear-resisting ring, and the first wear-resisting ring is bearing in the first zinc-base sliding bearing, and the first zinc-base sliding bearing is fastened on casing output terminal endoporus;
" cylinder-disc type " polyester oil suction sponge of " T " word section is provided with in described output shaft, 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 at radial hole uniform with disc circumference on output shaft disk end face and communicates;
The described ring endoporus that all carries connects the second zinc base alloy bearing, and described second zinc base alloy bearing is bearing on the second wear-resisting ring, and described second wear-resisting ring is located at the little cylinder cylindrical of nose circle lid.
[technique effect]
Although each independent technical characteristics of the present invention is completely known, support each other, and can following Advantageous Effects be produced:
(1) zinc base alloy bearing ratio with internal diameter rolling bearing, price can reduce 60-80%, and the larger effect of internal diameter is more remarkable;
(2) zinc base alloy sliding bearing stable working, noise free, radial dimension is little, bearing capacity is large;
(3) sliding bearing abrasion rate is the advantages such as very low, long service life is that rolling bearing is irreplaceable;
(4) structure simple, manufacture, processing, easy accessibility; There is good shock-resistant and good absorbing performance;
(5) can save Bearing Steel 60-80%, old zinc base alloy sliding bearing is recyclable to be cast again.
[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 dynamic balancing little tooth difference speed reducer of a kind of zinc base alloy bearing supporting, comprises casing 1 and the transmission part be arranged in casing 1 and pin axle type output block, it is characterized in that:
Described casing 1 input end face connects nose circle lid 14, and described nose circle lid 14 endoporus connects wheel hub 15, and described wheel hub 15 endoporus bearing 11 supports input shaft 13, and described nose circle lid 14 input end face connects small end cover 12;
Described driving mechanism comprises planet wheel, ring gear 7 and capacity eccentric bearing 10, and described ring gear 7 is fastened on the input end endoporus of casing 1, makes active force directly point to casing footing and can not produce tilting moment;
Described planet wheel is four identical wheels, and wherein: both sides planet wheel 8 phase place is identical, middle two planet wheel 13 phase places are identical, both sides planet wheel 8 and middle two planet wheel 13 phase difference 180 °, and four wheels can realize dynamic balancing running;
Described pin axle type output block comprises output shaft 4,6-12 only uniform pin 9 and all carry ring 18, and described pin 9 two ends connect output shaft 4 disk respectively and all carry ring 18 and form cage output shaft, wherein:
Described output shaft 4 axle journal is provided with the first wear-resisting ring 2, and described first wear-resisting ring 2 is bearing in the first zinc base alloy bearing 5, and described first zinc base alloy bearing 5 is connected to casing 1 output terminal endoporus;
" cylinder-disc type " polyester oil suction sponge 3 of " T " word section is provided with in described output shaft 4, cylindrical end and output shaft 4 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 4 aperture, and disk end is located at the radial hole uniform with disc circumference on output shaft 4 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;
Described ring 18 endoporus that all carries connects the second zinc base alloy bearing 17, described zinc base alloy bearing 17 is bearing on the second wear-resisting ring 16, described second wear-resisting ring 16 is located on the cylindrical of wheel hub 15, the maximum outside diameter of described wheel hub 15 is less than the external diameter of the second wear-resisting ring 16, its role is to assemble smoothly all carry ring 16.
Pin axle type output block both sides zinc-base sliding supported condition, 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. a dynamic balancing little tooth difference speed reducer for zinc base alloy bearing supporting, comprises casing (1) and the transmission part be arranged in casing (1) and pin axle type output block, it is characterized in that:
Described casing (1) input end face connects nose circle lid (14), described nose circle lid (14) endoporus connects wheel hub (15), described wheel hub (15) endoporus bearing (11) supporting input shaft (13), described nose circle lid (14) input end face connects small end cover (12);
Described driving mechanism comprises planet wheel, ring gear (7) and capacity eccentric bearing (10), described ring gear (7) is fastened on the input end endoporus of casing (1), described planet wheel is four identical wheels, wherein: both sides planet wheel (8) phase place is identical; Middle two planet wheels (13) phase place is identical; Both sides planet wheel (8) and middle two planet wheels (13) phase difference 180 °.
Described pin axle type output block comprises output shaft (4), 6-12 only uniform pin (9) and all carry ring (18), described pin (9) two ends connect output shaft (4) disk respectively and all carry ring (18) and form cage output shaft, wherein:
Described output shaft (4) axle journal is provided with the first wear-resisting ring (2), described first wear-resisting ring (2) is bearing in the first zinc base alloy bearing (5), and described first zinc base alloy bearing (5) is connected to casing (1) output terminal endoporus;
" cylinder-disc type " polyester oil suction sponge (3) of " T " word section is provided with in described output shaft (4), cylindrical end and output shaft (4) 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 (4) aperture, and disk end is located at radial hole uniform with disc circumference on output shaft (4) disk end face and communicates;
Described ring (18) endoporus that all carries connects the second zinc base alloy bearing (17), described zinc base alloy bearing (17) is bearing on the second wear-resisting ring (16), described second wear-resisting ring (16) is located on the cylindrical of wheel hub (15), and the maximum outside diameter of described wheel hub (15) is less than the external diameter of the second wear-resisting ring (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396923.3A CN104295723A (en) | 2014-08-06 | 2014-08-06 | Dynamic balance few tooth difference speed reducer for zinc base alloy bearing supporting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396923.3A CN104295723A (en) | 2014-08-06 | 2014-08-06 | Dynamic balance few tooth difference speed reducer for zinc base alloy bearing supporting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104295723A true CN104295723A (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410396923.3A Pending CN104295723A (en) | 2014-08-06 | 2014-08-06 | Dynamic balance few tooth difference speed reducer for zinc base alloy bearing supporting |
Country Status (1)
| Country | Link |
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| CN (1) | CN104295723A (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 |
| CN86102085A (en) * | 1986-03-26 | 1988-07-20 | 方祖彭 | Small tooth difference planetary reducer series |
| JPH11221736A (en) * | 1998-02-10 | 1999-08-17 | Nikken Kosakusho Works Ltd | High-speed rotation tool holder |
| CN102889341A (en) * | 2011-07-17 | 2013-01-23 | 吴小杰 | Large star wheel gear box |
| 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 |
-
2014
- 2014-08-06 CN CN201410396923.3A patent/CN104295723A/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 |
| CN86102085A (en) * | 1986-03-26 | 1988-07-20 | 方祖彭 | Small tooth difference planetary reducer series |
| JPH11221736A (en) * | 1998-02-10 | 1999-08-17 | Nikken Kosakusho Works Ltd | High-speed rotation tool holder |
| CN102889341A (en) * | 2011-07-17 | 2013-01-23 | 吴小杰 | Large star wheel gear box |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 无: "AF-90高强度减磨锌基合金——一种降低滑动轴承类产品成本的新材料", 《铸造设备研究》 * |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150121 |
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| WD01 | Invention patent application deemed withdrawn after publication |