CN104196989A - Star wheel reduction gearbox for interlayer water-cooling box zinc-base alloy bearing support - Google Patents
Star wheel reduction gearbox for interlayer water-cooling box zinc-base alloy bearing support Download PDFInfo
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- CN104196989A CN104196989A CN201410396954.9A CN201410396954A CN104196989A CN 104196989 A CN104196989 A CN 104196989A CN 201410396954 A CN201410396954 A CN 201410396954A CN 104196989 A CN104196989 A CN 104196989A
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- Prior art keywords
- bearing
- output shaft
- casing
- inner cylinder
- box body
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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
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
- F16H57/0417—Heat exchangers adapted or integrated in the gearing
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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
- F16H57/08—General details of gearing of gearings with members having orbital motion
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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 a star wheel reduction gearbox for an interlayer water-cooling box zinc-base alloy bearing support. The star wheel reduction gearbox comprises a box body, an input shaft, a transmission mechanism and an output shaft and is characterized in that an inner cylinder and round end cover connecting part is arranged in the box body, an inner cylinder is connected with the box body, the input end of the round end cover is in close fit with an inner hole of the input end of the box body, the round end cover is connected with the box body through an annular disc, and an interlayer is formed by the inner wall of the box body and the outer wall of the inner cylinder and round end cover connecting part; a water inlet valve and a water drainage valve are arranged on the top of the box body and on the lateral portion of the box body, the transmission mechanism comprises two star wheels with a line phase difference of 180 degrees, an annular gear and an eccentric bearing, a wear-resisting ring on the output shaft is supported in a zinc-base alloy bearing, sponge with a T-shaped cross 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 the friction surface through a small hole of the output shaft. The star wheel reduction gearbox has the advantages that the structure is simple, manufacturing cost is low, thermal power can be made to be close to mechanical power through water flow adjustment, lubrication of the alloy bearing is reliable, the cost of the alloy bearing is lower than that of a rolling bearing by 60%-80%, and steel used for the bearing 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 star-wheel speed reducer, the star-wheel 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, and in fact star-wheel gearing down is exactly Involute Small Teeth Difference Planetary Gearing.
Research discovery, existing universal planetary drive 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 624 kg, 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 planetary-gear speed reducer (JB/T8712-1998) is exactly Reducer With Involute Gear of Less-tooth Difference in fact, and single-stage star-wheel can replace secondary planetary gear transmission.Prior art major defect is: do 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 stipulate 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.(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 star-wheel 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." (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 inner cylinder and nose circle lid peripheral hardware radiating fin, 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 planet gearing part comprises two planet wheels of 180 ° of phase differences, ring gear, be located at capacity eccentric bearing and fixed frame on input shaft, described fixed frame covers by left disk and nose circle the formation that is connected and fixed with four uniform pillars, described two planet wheels are bearing on the eccentric segment of 4 uniform double-eccentric shafts with clutch shaft bearing, the two ends of described double-eccentric shaft are bearing in respectively in left disk and nose circle lid respective aperture with the second bearing, described ring gear is connected on the disk of output shaft, the bearing hole at described two planet wheel centers is loaded on input shaft shaft extension end through capacity eccentric bearing, two planet wheels and ring gear engagement.
Again further, close-fitting wear-resisting ring on described output shaft neck, wear-resisting ring is bearing in zinc base alloy bearing, 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 being located at the radial hole uniform with disc circumference on output shaft disk end face, disk end communicates.
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 star-wheel 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 16, planet gearing part 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 9 link with nose circle, described inner cylinder 2 flanges are connected with casing 1 output end face, described nose circle covers 9 input end cylindricals and casing 1 input end endoporus close-fitting, the nose circle face that described nose circle covers 9 input end faces and casing 1 input end is tightly connected with same circle ring disk 11, described inner cylinder 2 covers 9 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 9 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 15 supporting input shafts 16 for 9 endoporus;
Described planet gearing part comprises two planet wheels 12 of 180 ° of phase differences, ring gear 14, be located at capacity eccentric bearing 10 and fixed frame on input shaft 16, described fixed frame with four uniform pillars 13 by left disk 17 and nose circle lid 9 formation that is connected and fixed, described two planet wheel 12 use clutch shaft bearings are bearing on the eccentric segment of 4 uniform double-eccentric shafts 7, the two ends of described double-eccentric shaft 7 are bearing in respectively left disk 17 with the second bearing and cover in 9 respective aperture with nose circle, described ring gear 14 is connected on the disk 8 of output shaft 4, the bearing hole at described two planet wheel 12 centers is loaded on input shaft 16 shaft extension ends through capacity eccentric bearing 10, two planet wheels 7 and ring gear 16 engagements.
Close-fitting wear-resisting ring 3 on described output shaft 5 axle journals, wear-resisting ring 3 is bearing in zinc base alloy bearing 6, 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 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 in a steady stream Fill fills, and 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. a star-wheel speed reducer for intermediate water ice chest body zinc base alloy bearing supporting, comprises casing (1) and is arranged in casing (1) and the input shaft of transmission (16), planet gearing part 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 (9), described inner cylinder (2) flange is connected with casing (1) output end face, described nose circle lid (9) input end cylindrical and casing (1) input end endoporus close-fitting, the same circle ring disk for nose circle face (11) of described nose circle lid (9) input end face and casing (1) input end is tightly connected, described inner cylinder (2) and nose circle lid (9) 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 (9) 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 (9) bearing for endoporus (15) supporting input shaft (16);
Described planet gearing part comprises two planet wheels (12) of 180 ° of phase differences, ring gear (14), be located at capacity eccentric bearing (10) and fixed frame on input shaft (16), described fixed frame with four uniform pillars (13) by left disk (17) and nose circle lid (9) formation that is connected and fixed, described two planet wheels (12) are bearing on the eccentric segment of 4 uniform double-eccentric shafts (7) with clutch shaft bearing, the two ends of described double-eccentric shaft (7) are bearing in respectively left disk (17) with the second bearing and cover in (9) respective aperture with nose circle, described ring gear (14) is connected on the disk (8) of output shaft (4), the bearing hole at described two planet wheels (12) center is loaded on input shaft (16) shaft extension end through capacity eccentric bearing (10), two planet wheels (7) and ring gear (16) engagement.
Close-fitting wear-resisting ring (3) on described output shaft (5) axle journal, wear-resisting ring (3) is bearing in zinc base alloy bearing (6), 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 being located at the radial hole uniform with disc circumference on output shaft (5) disk end face, disk end sponge communicates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396954.9A CN104196989A (en) | 2014-08-06 | 2014-08-06 | Star wheel reduction gearbox for interlayer water-cooling box zinc-base alloy bearing support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396954.9A CN104196989A (en) | 2014-08-06 | 2014-08-06 | Star wheel reduction gearbox for interlayer water-cooling box zinc-base alloy bearing support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104196989A true CN104196989A (en) | 2014-12-10 |
Family
ID=52082330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410396954.9A Pending CN104196989A (en) | 2014-08-06 | 2014-08-06 | Star wheel reduction gearbox for interlayer water-cooling box zinc-base alloy bearing support |
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| CN (1) | CN104196989A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438856A (en) * | 2016-01-28 | 2017-02-22 | 三联传动机械有限公司 | Needle wheel output cycloidal reducer |
| CN106523598A (en) * | 2016-12-06 | 2017-03-22 | 江苏昊克传动科技股份有限公司 | High-bearing-capacity speed reducing machine |
| CN106763525A (en) * | 2016-12-06 | 2017-05-31 | 江苏昊克传动科技股份有限公司 | High-mechanic gear-box |
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| CN2415209Y (en) * | 1999-11-23 | 2001-01-17 | 陶刚 | Jacket water-cooled continuous casting withdrawal straightening machine speed reducer |
| CN1461391A (en) * | 2001-07-09 | 2003-12-10 | 周干绪 | A type of speed reducer or speed-varying device with sprocket-wheel drive assembly |
| JP2009041624A (en) * | 2007-08-07 | 2009-02-26 | Sumitomo Heavy Ind Ltd | Oscillating inscribed planetary gear structure |
| CN102678894A (en) * | 2012-05-27 | 2012-09-19 | 付克敏 | Vent cap mechanism of transmission machinery gear case |
| CN102889341A (en) * | 2011-07-17 | 2013-01-23 | 吴小杰 | Large star wheel gear box |
| CN102996780A (en) * | 2012-10-09 | 2013-03-27 | 吴小杰 | Grease lubricated star wheel speed reducer for bearing |
-
2014
- 2014-08-06 CN CN201410396954.9A patent/CN104196989A/en active Pending
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| CN2415209Y (en) * | 1999-11-23 | 2001-01-17 | 陶刚 | Jacket water-cooled continuous casting withdrawal straightening machine speed reducer |
| CN1461391A (en) * | 2001-07-09 | 2003-12-10 | 周干绪 | A type of speed reducer or speed-varying device with sprocket-wheel drive assembly |
| JP2009041624A (en) * | 2007-08-07 | 2009-02-26 | Sumitomo Heavy Ind Ltd | Oscillating inscribed planetary gear structure |
| CN102889341A (en) * | 2011-07-17 | 2013-01-23 | 吴小杰 | Large star wheel gear box |
| CN102678894A (en) * | 2012-05-27 | 2012-09-19 | 付克敏 | Vent cap mechanism of transmission machinery gear case |
| CN102996780A (en) * | 2012-10-09 | 2013-03-27 | 吴小杰 | Grease lubricated star wheel speed reducer for bearing |
Non-Patent Citations (2)
| Title |
|---|
| 《现代机械传动手册》编辑委员会: "《现代机械传动手册》", 30 April 1995 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438856A (en) * | 2016-01-28 | 2017-02-22 | 三联传动机械有限公司 | Needle wheel output cycloidal reducer |
| CN106523598A (en) * | 2016-12-06 | 2017-03-22 | 江苏昊克传动科技股份有限公司 | High-bearing-capacity speed reducing machine |
| CN106763525A (en) * | 2016-12-06 | 2017-05-31 | 江苏昊克传动科技股份有限公司 | High-mechanic gear-box |
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Application publication date: 20141210 |