CN102996776B - The large-scale star wheel gear box of bearing grease lubrication - Google Patents
The large-scale star wheel gear box of bearing grease lubrication Download PDFInfo
- Publication number
- CN102996776B CN102996776B CN201210408311.2A CN201210408311A CN102996776B CN 102996776 B CN102996776 B CN 102996776B CN 201210408311 A CN201210408311 A CN 201210408311A CN 102996776 B CN102996776 B CN 102996776B
- Authority
- CN
- China
- Prior art keywords
- bearing
- wheel
- pin
- sealing
- row star
- 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.)
- Active
Links
- 238000005461 lubrication Methods 0.000 title claims abstract description 16
- 239000004519 grease Substances 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 125000006850 spacer group Chemical group 0.000 claims abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 description 11
- 239000003921 oil Substances 0.000 description 7
- 239000010687 lubricating oil Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000012208 gear oil Substances 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium dioxide Chemical compound O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 208000008312 Tooth Loss Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000007866 anti-wear additive Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000015895 biscuits Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
Landscapes
- General Details Of Gearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention relates to few teeth difference braking technique field, a kind of large-scale star wheel gear box of bearing grease lubrication, including the Involute Small Teeth Difference Planetary Gearing part in support and support, it is characterized in that: power shaft sealing bearing is bearing in fixed mount, both sides planetary gear is bearing on eccentric bushing with two sealing bearings, center row star-wheel is bearing on eccentric bushing with four sealing bearings, is that same specification seals bearing in three planetary gears；Pin two ends are bearing in fixed mount two side endoporus with left and right sealing bearing respectively, on pin first and second small eccentricity apply mechanically sealing bearing be bearing in planetary gear pin-and-hole, middle small eccentricity is applied mechanically four sealing bearings and is bearing in center row star-wheel pin-and-hole, and the six, the seven and eight is that same specification seals bearing；Output shaft is bearing in support endoporus with first, second bearing with spacer ring, and first, second bearing both sides are respectively arranged with a sealing member。Beneficial effect: bearing operation is reliable, thus decelerator long service life, noise are low。
Description
The field of inventionthe invention relate to involute less tooth difference braking technique field, a kind of large-scale star wheel gear box of bearing grease lubrication, support internal gear gear oil lubrication, rolling bearing bearing grease lubricate。
Background technology JB/T8712-1998 planetary-gear speed reducer system involute less tooth difference: 1. ring gear output；2. pin type output mechanism pin changes double-eccentric shaft into, equipped with four self-aligning roller bearings on axle, is called rolling star-wheel。Planetary-gear speed reducer has problems: when gear oil lubricates bearing at the same time with gear, due to sliding friction, oil can be made quickly dirty, and bearing damage causes the left alone without help machine of decelerator。
" Slope protection of mine speed reducer and processing method " is pointed out: " decelerator trouble accounts for 40% in coal mine equipment fault。Bearing is the another part being very easy in decelerator damage。Bearing failure form: bearing scratches, bearing is adhered, bearing invades impurity, retainer fracture etc.。Reason: in lubricating oil, large granular impurity content is higher, increases the weight of bearing wear degree。"
" Fatigue failure of heavy-duty gear surface and prevention " is pointed out: " bearing wheels tooth surface subjects multi-form stress effect everywhere; the flank of tooth and subcutaneous metal are likely to produce fine crack and form tired source; stress-number of cycles increases therewith; crackle will constantly extend so that the formation biscuit metal that is connected with each other comes off; the flank of tooth occurs that spot corrosion is peeled off, and gear teeth face produces fatigue damage。"
(1) basic reason that bearing fault rate is high:
" insufficient lubrication is the main cause causing bearing early damage " (Liu Zejiu " rolling bearing application manual " 891 pages)
" ... bearing initial failure is frequently not the fatigue rupture that material causes, but after pollutant enter Bearing inner, lubrication lipid degenerates gradually, produces caused by impression on Structure deformation face。" (" Sealing Technology of seal deep groove ball bearing " bearing 2009.05)
Radial ball bearing contact stress σ max=5000Mpa (р. д. 134 pages of " the rolling bearing handbook " of prompt Germania) for 3-4 times of gear pair σ max=1450Mpa, therefore the cleannes of bearing grease (oil) should far above the lubricating oil of gear。
Upper 103 pages of (a) Shanghai Machinery College " Fundamentals of Machine Design ": " gear drive is equipped to pull down after using a period of time and can be found that wear trace occurs in tooth surface; especially under lubricating poor or the impure condition of lubricating oil; wear phenomenon becomes apparent from; wheel root portion weares and teares, and seriously, relatively gear wheel is serious again for little gear wear at relatively top。Abrasion causes owing to having active force and relative sliding between contact surface。... there is relative sliding length Δ S between flank profil, it was shown that flank profil to be worn and torn。"
B () Zhu Xiaolu " Gear Transmission Design handbook " 94 pages: in power gear transmission, tooth surface is overheated etc. due to skimming wear, burn into, thus occurs that flank of tooth loss is inevitable；
(2) bearing grease lubrication (or without additive mineral oil) is required in theory, gear additive lubricating oil:
(a) Liu Zejiu " rolling bearing application manual " 893 pages: " when the bearing run up or work under high temperature; when grease lubrication cannot be used or when the contiguous another part (such as gear) of bearing uses oil lubrication, oil lubrication just used by bearing。" 921 pages: " ... the lubrication of rolling bearing is general with the mineral oil without additive "；
(b) Zhu Xiaolu " Gear Transmission Design handbook " 1087 pages: be in the gear under boundary lubrication condition, the lubricating oil containing extreme pressure anti-wear additives (additive) should be used。
SH/T0017-1990L-FC Grade A bearing oil kinematic viscosity is 90-100；It is that 288-352 is much smaller than gear oil viscosity。
Conclusion: gear-box, the basic reason that bearing fault rate is high are with gear oil oilgear and rolling bearing simultaneously。
[summary of the invention] the object of the invention provides the large-scale star wheel gear box of bearing grease lubrication of a kind of long service life。
[technical scheme] power shaft seals bearing with two first and second and is bearing in fixed mount, the first row star-wheel seals bearing with two the 3rd and is bearing on the first eccentric bushing, described center row star-wheel seals bearing with four the 4th and is bearing on middle eccentric bushing, described second planetary gear with two the 5th seal bearings be bearing on the second eccentric bushing, third and fourth and five be same specification sealing bearing；Pin two ends are bearing in fixed mount two side endoporus with left and right sealing bearing respectively, on pin the first small eccentricity apply mechanically two the 6th seal bearings be bearing in the first row star-wheel pin-and-hole, middle small eccentricity is applied mechanically four the 7th sealing bearings and is bearing in center row star-wheel pin-and-hole, second small eccentricity is applied mechanically two the 8th sealing bearings and is bearing in the second planetary gear pin-and-hole, and the six, the seven and eight is that same specification seals bearing；Output shaft is bearing in support endoporus with first, second bearing with spacer ring, and first, second bearing both sides are respectively arranged with a sealing member。
Sealing bearing is contact radial seal bearing, and such as RK or RS or HMS (A) or MHS (A) type, described sealing member is rotary shaft lip seal or Che Shi combination sealing。The feasibility of grease lubricating bearing is presented below:
1. Ai Siman " rolling bearing design and application manual " 221 pages: " when compact conformation, it is preferred to use equipped with the radial ball bearing of two face seals。The grease of the whole useful life of enough bearings is had been charged into equipped with the radial ball bearing of two sides sealing ring。"
2. Bu Yan " practical bearing technology handbook " 95 pages: " at those compact conformations, axial dimension requirement is little, seal request strict, safeguard repairing difficulty, and inconvenience adopts the place of additional seal assemblies, it is possible to preferentially selects and seals bearing。"
3. Liu Ze nine " rolling bearing application manual " 593 pages: " seal bearing and both can have an excellent sealing lubricant environment, also save the lubricating system of complexity simultaneously。So at compact conformation, the strict position of seal request, all suggestion uses and seals bearing。"
Zhu Xiaolu " Gear Transmission Design handbook " 1096 pages: " gear lubricant service life of having it the same as gear and other another parts, the service life of oil product is closely related with applying working condition and maintenance technology again。... general industry gear normal operation 2500h. or must change oil for 6 months。" Liu Zejiu " rolling bearing application manual " 913 pages: change fat cycle empirical equation as follows:
T=1.475 106K-0.9908-1.025·106K-0.8626(h.)
In formula: COEFFICIENT K=KfN Dm (r mm/s) (ball bearing Kf=0.9-1.1), Dm=(D+d)/2, result of calculation: seal the fat cycle of changing > 2500 (h.) of bearing, thus demonstrate sealing bearing and have been charged into the grease of the whole useful life of enough bearings。
Motor n1=1000rpm, NAD:i=6.3, n=158.7rpm, NBD:i=40, n=25rpm change the fat cycle
[beneficial effect] has the technical effect that bearing operation is reliable, thus decelerator long service life, noise are low。
[accompanying drawing explanation] Fig. 1. embodiment of the present invention structural representation
The present invention is encyclopaedized by [detailed description of the invention] below in conjunction with accompanying drawing:
With reference to Fig. 1. a kind of large-scale star wheel gear box of bearing grease lubrication, including support 1 and be contained in the Involute Small Teeth Difference Planetary Gearing part in support 1, described Involute Small Teeth Difference Planetary Gearing part includes the first row star-wheel 101, center row star-wheel 22, second planetary gear 102, power shaft 15, it is contained in the first eccentric bushing 171 of power shaft 15 axle stretch end successively, middle eccentric bushing 16 and the second eccentric bushing 172, uniform pin 11, output shaft 4, the ring gear 9 coupled with output shaft 4 disk and fixed mount 18, described both sides first, second planetary gear 101, 102 with center row star-wheel 22 phase contrast 180 °, described both sides first, second planetary gear 101, 102 uniform thickness, its thickness is the half of center row star-wheel 22, and described pin 11 is sequentially arranged with the first small eccentricity set 191, middle small eccentricity set 20 and the second small eccentricity set 192, described both sides first, second small eccentricity set 191, 192 overlap 20 phase contrast 180 ° with middle small eccentricity, the three eccentricity set 171 on described power shaft 15, 16, three small eccentricity sets 191 in 172 eccentric throws and pin 11, 20, 192 eccentric throws are all equal, and described fixed mount 16 is connected on support 1 input end face, it is characterised in that:
Described power shaft 15 seals bearing 141,142 with two first, second and is bearing in fixed mount 18 endoporus, described the first row star-wheel 101 seals bearing 131 with two the 3rd and is bearing on the first eccentric bushing 171, described center row star-wheel 22 seals bearing 12 with four the 4th and is bearing on middle eccentric bushing 16, described second planetary gear 102 seals bearings 132 with two the 5th and is bearing on the second eccentric bushing 172, described third and fourth and five be identical sealing bearing；
Described pin 11 two ends are bearing in fixed mount 18 two side endoporus with left and right sealing bearing 72,71 respectively, on described pin 11, the first small eccentricity set 191 is bearing in the first row star-wheel 101 pin-and-hole with two the 6th sealing bearings 81, described middle small eccentricity set 20 seals bearing 21 with four the 7th and is bearing in center row star-wheel 22 pin-and-hole, described second small eccentricity set 192 seals bearing 82 with two the 8th and is bearing in the second planetary gear 102 pin-and-hole, and described six, the seven and eight is identical sealing bearing；
Described output shaft 4 is bearing in support 1 endoporus with first, second bearing 2,5 with spacer ring, and described first, second bearing 2,5 both sides are respectively arranged with a sealing member 3,6；
Described sealing bearing is contact radial seal bearing, and such as RK or RS or HMS (A) or MHS (A) type, described sealing member is rotary shaft lip seal or Che Shi combination sealing；Described sealing bearing is contact radial seal bearing, such as RK or RS or HMS (A) or MHS (A) type, described sealing member is rotary shaft lip seal or Che Shi combination sealing (Cheng great Xian " mechanical design handbook " roll up 3-10-269,300 pages)；
" self seal of bearing is divided into contact and non-contacting seal by version。Radial seal and axial seal can be divided into by contact。Single lip seal and double-lip seal can be divided into by the structure of sealing ring。" (Liu Zejiu " rolling bearing application manual " 593 pages)
Claims (1)
1. the large-scale star wheel gear box of bearing grease lubrication, including support (1) and be contained in the Involute Small Teeth Difference Planetary Gearing part in support (1), described Involute Small Teeth Difference Planetary Gearing part includes the first row star-wheel (101), center row star-wheel (22), second planetary gear (102), power shaft (15), it is contained in first eccentric bushing (171) of power shaft (15) axle stretch end successively, middle eccentric bushing (16) and the second eccentric bushing (172), uniform pin (11), output shaft (4), the ring gear (9) coupled with output shaft (4) disk and fixed mount (18), described in both sides first, second planetary gear (101, 102) with center row star-wheel (22) phase contrast 180 °, described in both sides first, second planetary gear (101, 102) uniform thickness, its thickness is the half of center row star-wheel (22), and described pin (11) is sequentially arranged with the first small eccentricity set (191), middle small eccentricity set (20) and the second small eccentricity set (192), described in both sides first, second small eccentricity set (191, 192) with middle small eccentricity set (20) phase contrast 180 °, the three eccentricity set (171 on described power shaft (15), 16, 172) three small eccentricity sets (191 on eccentric throw and pin (11), 20, 192) eccentric throw is all equal, and described fixed mount (18) is connected on support (1) input end face, it is characterised in that:
Described power shaft (15) seals bearing (141,142) with first, second and is bearing in fixed mount (18) endoporus, described the first row star-wheel (101) seals bearing (131) with two the 3rd and is bearing on the first eccentric bushing (171), described center row star-wheel (22) seals bearing (12) with four the 4th and is bearing on middle eccentric bushing (16), described second planetary gear (102) seals bearing (132) with two the 5th and is bearing on the second eccentric bushing (172), described third and fourth and five be identical sealing bearing；
Described pin (11) two ends are respectively with a left side, right sealing bearing (72, 71) fixed mount (18) two side endoporus it is bearing in, the upper first small eccentricity set (191) of described pin (11) seals bearing (81) with two the 6th and is bearing in the first row star-wheel (101) pin-and-hole, described middle small eccentricity set (20) seals bearing (21) with four the 7th and is bearing in center row star-wheel (22) pin-and-hole, described second small eccentricity set (192) seals bearing (82) with two the 8th and is bearing in the second planetary gear (102) pin-and-hole, described 6th, seven and eight is identical sealing bearing；
The described output shaft (4) first, second bearing (2,5) with spacer ring is bearing in support (1) endoporus, and described first, second bearing (2,5) both sides are respectively arranged with a sealing member (3,6)；
Described sealing bearing is contact radial seal bearing, and sealing member is rotary shaft lip seal or Che Shi combination sealing。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210408311.2A CN102996776B (en) | 2012-10-09 | 2012-10-09 | The large-scale star wheel gear box of bearing grease lubrication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210408311.2A CN102996776B (en) | 2012-10-09 | 2012-10-09 | The large-scale star wheel gear box of bearing grease lubrication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102996776A CN102996776A (en) | 2013-03-27 |
| CN102996776B true CN102996776B (en) | 2016-06-22 |
Family
ID=47925727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210408311.2A Active CN102996776B (en) | 2012-10-09 | 2012-10-09 | The large-scale star wheel gear box of bearing grease lubrication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102996776B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039091A (en) * | 1988-06-30 | 1990-01-24 | 湖南省机械研究所 | Mixed few-differential spider retarder and speed changer |
| US4896567A (en) * | 1987-07-18 | 1990-01-30 | Hunan Research Inst. Of Machinery | Planetary transmission mechanism and device of involute gears with complex minor tooth difference |
| CN2085446U (en) * | 1990-12-28 | 1991-09-25 | 湖南省机械研究所 | Internal intermeshing planet transmission |
| CN1062407A (en) * | 1990-12-15 | 1992-07-01 | 湖南省机械研究所 | A kind of internally engaged planetary driving machanism of new structure |
| CN1166578A (en) * | 1996-05-29 | 1997-12-03 | 湖南省机械研究所 | New-structure planetary-gear speed reducer and speed variator |
| CN2385148Y (en) * | 1999-08-02 | 2000-06-28 | 叶发忠 | Speed reducer |
| CN2511833Y (en) * | 2001-07-02 | 2002-09-18 | 湖南省机械研究所 | Planetary transmission |
-
2012
- 2012-10-09 CN CN201210408311.2A patent/CN102996776B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4896567A (en) * | 1987-07-18 | 1990-01-30 | Hunan Research Inst. Of Machinery | Planetary transmission mechanism and device of involute gears with complex minor tooth difference |
| CN1039091A (en) * | 1988-06-30 | 1990-01-24 | 湖南省机械研究所 | Mixed few-differential spider retarder and speed changer |
| CN1062407A (en) * | 1990-12-15 | 1992-07-01 | 湖南省机械研究所 | A kind of internally engaged planetary driving machanism of new structure |
| CN2085446U (en) * | 1990-12-28 | 1991-09-25 | 湖南省机械研究所 | Internal intermeshing planet transmission |
| CN1166578A (en) * | 1996-05-29 | 1997-12-03 | 湖南省机械研究所 | New-structure planetary-gear speed reducer and speed variator |
| CN2385148Y (en) * | 1999-08-02 | 2000-06-28 | 叶发忠 | Speed reducer |
| CN2511833Y (en) * | 2001-07-02 | 2002-09-18 | 湖南省机械研究所 | Planetary transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102996776A (en) | 2013-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102996780A (en) | Grease lubricated star wheel speed reducer for bearing | |
| CN102996775B (en) | Bearing grease lubrication planetary-gear speed reducer | |
| CN102979894B (en) | Bearing grease lubricates large-scale star-wheel gear-box | |
| CN102996745B (en) | The special low speed planet retarder of bearing grease lubrication roller-way | |
| CN102979875B (en) | Bearing grease lubricates large-scale cycloid in planet speed regulator | |
| CN103089928A (en) | Bearing grease lubrication megawatt-level ten-shunting wind power acceleration box | |
| CN103075469B (en) | Grease lubrication dynamic balance reduction gear of rocket launching pad bearing | |
| CN102705473A (en) | Interaxle differential of dual-axle automobile | |
| CN103791033A (en) | Duplex double-arm type wind power speed increasing gearbox with bearings lubricated by grease | |
| CN103791034A (en) | Two-stage planetary wind power speed increasing gearbox with bearings lubricated by grease | |
| CN102996722A (en) | Bearing-grease-lubrication large-torque cycloid reduction gearbox | |
| CN103195874B (en) | Rocket launch platform bearing grease lubrication speed reducer | |
| CN102996776B (en) | The large-scale star wheel gear box of bearing grease lubrication | |
| CN103001394B (en) | Bearing grease lubrication hybrid permanent magnet pumping-unit motor | |
| CN102996774B (en) | Bearing-grease-lubridynamic-balance dynamic-balance cycloid tricyclic reduction gearbox | |
| CN202301885U (en) | Idle gear assembly | |
| CN103089927A (en) | Quasi satellite speed reduction box of bearing grease lubrication nuclear power station cooling pump | |
| CN204294649U (en) | A kind of Bar Cooling Bed alignment roller denoted transmission mechanism | |
| CN102979856A (en) | Bearing-grease lubricating wind-power conical and cycloidal yawing speed reducer | |
| CN102996719B (en) | Bearing grease lubrication planetary speed reducer specially for roller way | |
| CN102996729B (en) | Grease lubricated large star wheel speed controller for bearing | |
| CN102996716B (en) | Bearing grease lubrication dynamic balance involute three-ring speed reducer | |
| CN102996765B (en) | Bearing grease lubrication parallel axes series reduction | |
| CN102979888A (en) | Bearing grease lubrication worm gear speed reducer of industrial robot | |
| CN103791030A (en) | Rail transit gear box with bearings lubricated by grease |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Shengzhen Inventor after: Jia Wenguang Inventor before: Wu Shengzhen |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160525 Address after: Yueqing City, Zhejiang Province, 325603 white town in Wenzhou City, Tian Yang Road No. 3 Applicant after: Chen Wei Address before: Whitehead street in Zhejiang County of Pingyang Province town of Kunyang 325400 Building No. 4 room 761 Applicant before: Wu Xiaojie |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170704 Address after: 226000 Jiangsu Province, Nantong City Chongchuan District Gongnong Road No. 59 7 floor Patentee after: Nantong run Jia International Trading Co., Ltd. Address before: Yueqing City, Zhejiang Province, 325603 white town in Wenzhou City, Tian Yang Road No. 3 Patentee before: Chen Wei |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20200923 Address after: Song Ling Zhen Development Zone of Wujiang District of Suzhou city in Jiangsu province 215200 Jia Pu Bridge Patentee after: WUJIANG CITY MINFU CABLE ACCESSORIES FACTORY Address before: 226000 Jiangsu Province, Nantong City Chongchuan District Gongnong Road No. 59 7 floor Patentee before: NANTONG RUNJIA INTERNATIONAL TRADE Co.,Ltd. |
|
| TR01 | Transfer of patent right |