CN101832367B - Tubular motor reducer with combined involute and cycloid - Google Patents
Tubular motor reducer with combined involute and cycloid Download PDFInfo
- Publication number
- CN101832367B CN101832367B CN2010101469653A CN201010146965A CN101832367B CN 101832367 B CN101832367 B CN 101832367B CN 2010101469653 A CN2010101469653 A CN 2010101469653A CN 201010146965 A CN201010146965 A CN 201010146965A CN 101832367 B CN101832367 B CN 101832367B
- Authority
- CN
- China
- Prior art keywords
- cycloid
- wheel
- transmission
- level
- gear
- 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
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 40
- 230000009467 reduction Effects 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims 1
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- XTKDAFGWCDAMPY-UHFFFAOYSA-N azaperone Chemical compound C1=CC(F)=CC=C1C(=O)CCCN1CCN(C=2N=CC=CC=2)CC1 XTKDAFGWCDAMPY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
Landscapes
- Retarders (AREA)
Abstract
The invention relates to a tubular motor reducer with combined involute and cycloid, which is characterized in that the reducer consists of first stage reduction, second stage reduction and third stage reduction in a decelerating sequence from the first to the third, wherein the first stage reduction, the second stage reduction and the third stage reduction are decelerating assemblies of involute planetary gear transmission and inner gearing cycloid transmission; and the first stage is planetary transmission, the second stage is dead axle transmission and the third stage is small teeth difference cycloid planetary transmission. In the invention, the involute planetary transmission is used for the high-speed stage; and the inner gearing cycloid transmission is used for the low-speed stage; therefore, the reducer overcomes the defect of single transmission mode, ensures the stability and the reliability of the transmission operation, obviously reduces the noise and has high transmission ratio and high bearing capacity.
Description
Technical field
The present invention relates to the retarder in the mechanical transmission, the tubular motor reducer of particularly a kind of involute and cycloid combination.
Background technique
Tubular motor reducer is used for the tube shaped electric machine assembly that use in places such as electric sunshading curtain, electronic garage door, electric rolling screen window, electric projection screen, and it becomes low speed with the high speed of motor.Present tubular motor reducer adopts the involute planet gear transmission, usually adopt several planet wheels simultaneously transmitted loads, make power dividing and reasonably adopt in engagement, so have a series of advantage: as compact structure, volume is little, in light weight, gear range is bigger, transmission efficiency height, running steadily, can move synthetic with decompose etc.Tubular motor reducer is in transmission process, and dreamboat is that the slow speed turbine stage bearing capacity is big, and the level noise is little at a high speed.Tubular motor reducer is as adopting the involute planetary transmission, because size and velocity ratio have limited the increase of the module of slow speed turbine stage, thereby caused slow speed turbine stage bearing capacity and velocity ratio all less; As adopt engagement driving in the cycloid, because profile of tooth is thick, area of contact is big, so bearing capacity is big, again very big velocity ratio can be arranged simultaneously, but because eccentric cause, having limited the running rotating speed can not be too high, otherwise shortens the life-span easily.There is following deficiency in this technology:
1, involute planetary transmission, the velocity ratio of low speed is little, and module can not be accomplished very big, has limited the bearing capacity of retarder.
Though 2, engagement driving can have big velocity ratio and bearing capacity in the cycloid, running speed is restricted, thereby limits its use occasion.
Summary of the invention
Technical problem to be solved by this invention is to avoid above-mentioned existing in prior technology deficiency, and the tubular motor reducer of a kind of compact structure, volume is little, efficient is high, the retarder noise is less involute and cycloid combination is provided.With the combination of involute planetary transmission and the transmission of interior engagement cycloid, overcome the deficiency of the single kind of drive, bring into play both advantages separately.
Technical solution problem of the present invention adopts following technological scheme:
Involute planetary transmission that to be described retarder be made of by one to three grade of deceleration in proper order one-level deceleration, double reduction and three grades of decelerations of the structural feature of the tubular motor reducer of involute of the present invention and cycloid combination and interior engagement cycloid transmission are slowed down and are constituted;
Described one-level is slowed down by the one-level planet wheel, fixedly ring gear, one-level wheel carrier and one-level sun gear are formed;
Described double reduction is made up of fixed axis gear and secondary sun gear;
Described three grades of decelerations are made up of cycloid wheel I, cycloid wheel II, rotation ring gear and eccentric shaft; The common support of fixing of forming of eccentric shaft positioning plate, connection pin, axle sleeve, sliding bearing and supporting sleeve provides swivel bearing for described eccentric shaft;
In sleeve pipe, the one-level sun gear is meshed with the one-level planet wheel, one-level planet wheel and the fixedly interior engagement of ring gear, the center of one-level wheel carrier is provided with the secondary sun gear, secondary sun gear and fixed axis gear engagement, and fixed axis gear is installed on the eccentric shaft, cycloid wheel I and cycloid wheel II are installed on described eccentric shaft, described cycloid wheel I, cycloid wheel II mesh with rotating ring gear, rotate the engagement of ring gear and output shaft connecting sleeve, and output shaft is fastened in the output shaft connecting sleeve; The cylindrical of internal tooth snare and the endoporus interference fit of rotating ring gear, the small end cylindrical of the endoporus of internal tooth snare and supporting sleeve is movingly; Setting sleeve is installed in the sleeve pipe, and the endoporus of setting sleeve and output shaft connecting sleeve are movingly.
Structural feature of the present invention also is:
Described cycloid wheel I, cycloid wheel II are the cycloid engagement with the engagement of rotating ring gear.
The placement location of described cycloid wheel I, cycloid wheel II is mutually 180 °.
The deceleration combination of described involute planetary transmission and the transmission of interior engagement cycloid can have continuous two groups or three groups.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention is used at a high speed level with the involute planetary transmission, and its compact structure, volume is little, efficient is high, the retarder noise is less;
2, the present invention is used for slow speed turbine stage with the transmission of interior engagement cycloid, the advantage that the velocity ratio of giving full play to the cycloid kind of drive is big, bearing capacity is high, effectively overcome the deficiency of the single kind of drive with the combination of involute planetary transmission and the transmission of interior engagement cycloid, brought into play the two advantage separately simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is an one-level deceleration A-A schematic cross-section of the present invention.
Fig. 3 is a double reduction B-B schematic cross-section of the present invention.
Fig. 4 is three grades of deceleration C-C of the present invention schematic cross-section.
Fig. 5 is three grades of deceleration D-D of the present invention schematic cross-section.
Fig. 6 is a driving mechanism schematic representation of the present invention.
Number in the figure: 1 one-level sun gear, 2 one-level planet wheels, 3 fixedly ring gear, 4 fixed axis gears, 5 supporting sleeves, 6 axle sleeves, 7 rotate ring gear, 8 cycloid wheel I, 9 output shaft connecting sleeves, 10 setting sleeves, 11 output shafts, 12 eccentric shafts, 13 sliding bearings, 14 eccentric shaft positioning plates, 15 connection pins, 16 internal tooth snares, 17 secondary sun gears, 18 one-level wheel carriers, 19 sleeve pipes, 20 cycloid wheel II.
Embodiment
Referring to Fig. 1, tubular motor reducer in the present embodiment is the tubular motor reducer of involute and cycloid combination, and the involute planetary transmission of being made up of in proper order by one to three grade of deceleration one-level deceleration, double reduction and three grades of decelerations and interior engagement cycloid transmission are slowed down and constituted
Figure 2 shows that the A-A schematic cross-section that one-level is slowed down, one-level is slowed down by one-level planet wheel 2, fixedly ring gear 3, one-level wheel carrier 18 and one-level sun gear 1 are formed;
Figure 3 shows that double reduction B-B schematic cross-section, double reduction is made up of fixed axis gear 4 and secondary sun gear 17;
Fig. 4 and Fig. 5 show the C-C cross section and the D-D schematic cross-section of three grades of decelerations respectively, and three grades of decelerations are made up of cycloid wheel I8, cycloid wheel II 20, rotation ring gear 7 and eccentric shaft 12; Eccentric shaft positioning plate 14, connection pin 15, axle sleeve 6, sliding bearing 13 and the supporting sleeve 5 common supports of fixing of forming are for eccentric shaft 12 provides swivel bearing;
In sleeve pipe 19, one-level sun gear 1 is meshed with one-level planet wheel 2, one-level planet wheel 2 meshes in the ring gear 3 again with fixedly, one-level wheel carrier 18 centers are provided with secondary sun gear 17, secondary sun gear 17 and fixed axis gear 4 engagements, fixed axis gear 4 is installed on the eccentric shaft 12, and cycloid wheel I 8 and cycloid wheel II 20 are installed on the eccentric shaft 12; Cycloid wheel I 8, cycloid wheel II 20 are meshed with rotating ring gear 7, rotate ring gear 7 and are meshed with output shaft connecting sleeve 9, and output shaft 11 is fastened in the output shaft connecting sleeve 9; The cylindrical of internal tooth snare 16 is an interference fit with the endoporus that rotates ring gear 7, and the small end cylindrical of the endoporus of internal tooth snare 16 and supporting sleeve 5 movingly; Setting sleeve 10 is installed in the sleeve pipe 19, and the endoporus of setting sleeve 10 and output shaft connecting sleeve 9 are movingly.
In the present embodiment, the cycloid wheel I 8 in the tubular motor reducer, cycloid wheel II 20 are the cycloid engagement with the engagement of rotating ring gear 7.
As shown in Figure 4 and Figure 5, the cycloid wheel I 8 of the tubular motor reducer in the present embodiment and the placement location of cycloid wheel II 20 are mutually 180 °, and purpose is cycloid wheel I 8 and cycloid wheel II 20 and two contact points stress balances that rotate ring gear 7.
In concrete the enforcement, as tubular motor reducer, the deceleration of involute planetary transmission and the transmission of interior engagement cycloid combination can have continuous two groups or three groups.
Figure 6 shows that driving mechanism schematic representation of the present invention, wherein, one-level is a Gear Planet Transmission, and secondary is an ordinary transmission, and three grades are few tooth-difference cycloid Gear Planet Transmission.If the motor input speed is 2800r/min, specifically be set to:
The one-level Gear Planet Transmission: motor driving one-level sun gear 1, rotating speed are 2800r/min, and one-level sun gear 1 drives three one-level planet wheels 2 in fixedly ring gear 3 inner toothed surface rotation, stir one-level wheel carrier 18 simultaneously and rotate velocity ratio i
1=6;
Secondary is an ordinary transmission: secondary sun gear 17 drives three fixed axis gears 4, velocity ratio i
2=2.5;
Three grades are few tooth-difference cycloid Gear Planet Transmission: three fixed axis gears 4 rotate three eccentric shafts 12 are rotated, because wobbler action makes cycloid wheel I 8 and cycloid wheel II 20 only do plane rocking and does not rotate, cycloid wheel is stirred and is rotated ring gear 7 rotations, rotate ring gear 7 and drive output shaft connecting sleeve 9 and output shaft 11 rotations, output power velocity ratio i
3=16; Resultant gear ratio is: i
Always=240, the rotating speed of output shaft is: 2800r/min/240=11.67r/min.
Velocity ratio calculates:
i
Always=i
1Xi
2Xi
3=6x2.5x16=240; i
1=1+Z
3/ Z
1=1+40/8=6;
i
2＝Z
4/Z
5＝15/6＝2.5；i
3＝Z
9/(Z
9-Z
7)＝16/(16-15)＝16；
In the formula: i
Always-resultant gear ratio, i
1The transmission of-one-level, i
2-two stage gear ratios, i
3-three stage gear ratios.
Z
1-one-level sun gear the number of teeth, Z
3-fixing ring gear the number of teeth, Z
4-fixed axis gear the number of teeth,
Z
5-secondary sun gear the number of teeth, Z
7-cycloid wheel the number of teeth, Z
9-driving ring gear the number of teeth.
The flank profil of cycloid wheel adopts the inboard equidistant curve of curtate epicycloid, and the driving ring gear flank profil of engagement is circular.
The tubular motor reducer noise figure of present embodiment can reach below the 40db, and the clockwise and anticlockwise startup life-span reaches 130,000 commentaries on classics continuously.The present invention efficiently solves synthtic price index such as noise that existing tubular motor reducer exists, bearing capacity, life-span.
Claims (4)
1. the tubular motor reducer of involute and cycloid combination is characterized in that involute planetary transmission that described retarder is made of by one to three grade of deceleration in proper order one-level deceleration, double reduction and three grades of decelerations and interior engagement cycloid transmission are slowed down to constitute;
Described one-level is slowed down by one-level planet wheel (2), fixedly ring gear (3), one-level wheel carrier (18) and one-level sun gear (1) are formed;
Described double reduction is made up of fixed axis gear (4) and secondary sun gear (17);
Described three grades of decelerations are made up of cycloid wheel I (8), cycloid wheel II (20), rotation ring gear (7) and eccentric shaft (12); Eccentric shaft positioning plate (14), connection pin (15), axle sleeve (6), sliding bearing (13) and the fixing support of the common composition of supporting sleeve (5) are that described eccentric shaft (12) provides swivel bearing;
In sleeve pipe (19), one-level sun gear (1) is meshed with one-level planet wheel (2), one-level planet wheel (2) and the fixedly interior engagement of ring gear (3), the center of one-level wheel carrier (18) is provided with secondary sun gear (17), secondary sun gear (17) and fixed axis gear (4) engagement, fixed axis gear (4) is installed on the eccentric shaft (12), go up installation cycloid wheel I (8) and cycloid wheel II (20) at described eccentric shaft (12), described cycloid wheel I (8), cycloid wheel II (20) and rotation ring gear (7) engagement, rotate ring gear (7) and output shaft connecting sleeve (9) engagement, output shaft (11) is fastened in the output shaft connecting sleeve (9); The cylindrical of internal tooth snare (16) and the endoporus interference fit of rotating ring gear (7), the small end cylindrical of the endoporus of internal tooth snare (16) and supporting sleeve (5) is movingly; Setting sleeve (10) is installed in the sleeve pipe (19), and the endoporus of setting sleeve (10) and output shaft connecting sleeve (9) are movingly.
2. the tubular motor reducer of involute according to claim 1 and cycloid combination is characterized in that described cycloid wheel I (8), cycloid wheel II (20) and the engagement of rotating ring gear (7) are the cycloid engagement.
3. according to the tubular motor reducer of claim 1 or 2 described involutes and cycloid combination, it is characterized in that the placement location of described cycloid wheel I (8), cycloid wheel II (20) is mutually 180 °.
4. according to the tubular motor reducer of claim 1,2 or 3 described involutes and cycloid combination, it is characterized in that the deceleration combination of described involute planetary transmission and the transmission of interior engagement cycloid can have continuous two groups or three groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101469653A CN101832367B (en) | 2010-04-14 | 2010-04-14 | Tubular motor reducer with combined involute and cycloid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101469653A CN101832367B (en) | 2010-04-14 | 2010-04-14 | Tubular motor reducer with combined involute and cycloid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101832367A CN101832367A (en) | 2010-09-15 |
| CN101832367B true CN101832367B (en) | 2011-11-30 |
Family
ID=42716535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101469653A Active CN101832367B (en) | 2010-04-14 | 2010-04-14 | Tubular motor reducer with combined involute and cycloid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101832367B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276144B (en) * | 2015-10-19 | 2017-10-10 | 袁正敏 | Tandem cycloid gear reductor |
| EP3339236B1 (en) | 2016-12-21 | 2020-06-17 | Otis Elevator Company | Self-braking gear and people conveyor comprising a self-braking gear |
| EP3339235B1 (en) | 2016-12-21 | 2020-06-03 | Otis Elevator Company | Self-locking gear and people conveyor comprising a self-locking gear |
| CN108119614A (en) * | 2017-10-19 | 2018-06-05 | 章臣重工(苏州)有限公司 | A kind of epicyclic speed reducer |
| CN109058391A (en) * | 2018-11-02 | 2018-12-21 | 重庆大学 | Mini-type tubular cycloidal pinwheel planetary gear speed reducer |
| CN110345200B (en) * | 2019-06-05 | 2022-09-27 | 宁波智启机电有限公司 | Tubular motor speed reducer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2821274Y (en) * | 2005-08-16 | 2006-09-27 | 姚培德 | Tubular motor planed gear speed reducer |
| CN2864234Y (en) * | 2006-01-10 | 2007-01-31 | 华如祥 | Tubular motor speed-reducing apparatus |
| CN201090679Y (en) * | 2007-07-27 | 2008-07-23 | 周金华 | Tubular electric machine planetary reducer |
| CN201651176U (en) * | 2010-04-14 | 2010-11-24 | 合肥波林新材料有限公司 | Involute and cycloid combined tubular motor speed reducer |
-
2010
- 2010-04-14 CN CN2010101469653A patent/CN101832367B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101832367A (en) | 2010-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101832367B (en) | Tubular motor reducer with combined involute and cycloid | |
| CN100402887C (en) | Floating load balancing mechanism for planet wheels and speed reducer thereof | |
| CN101818782B (en) | Cycloidal pin wheel planetary reducer with modified structure | |
| CN102817967B (en) | Speed-changing gear device | |
| CN201651176U (en) | Involute and cycloid combined tubular motor speed reducer | |
| CN202176679U (en) | Crankshaft inside meshing gear speed reducer | |
| CN102230515B (en) | Bevel gear-type planetary transmission mechanism | |
| CN1865731A (en) | Planetary balance-wheel speed reducer | |
| CN100549461C (en) | A kind of internal tricyclic decelerator | |
| CN202040280U (en) | Planetary transmission mechanism for bevel gears | |
| CN209875866U (en) | Vertical stirring speed reducer | |
| CN2464992Y (en) | Ultracircular surface planetary worm transmitted oil film load-homogenizer | |
| CN208966968U (en) | A kind of external planetary reducer dipper crowding gear | |
| CN201606457U (en) | Differential planetary speed-reducer | |
| CN201944208U (en) | Reduction gear capable of changing transmission ratio | |
| CN203532639U (en) | Marine deck machinery speed reducer | |
| CN201075853Y (en) | Mechanical type sun's rays tracking apparatus | |
| CN102072289B (en) | Reducer with changeable transmission ratio | |
| CN2916259Y (en) | Tubular motor decelerator | |
| CN1286361A (en) | Cycloid gear transmission mechanism and its apparatus | |
| CN205136487U (en) | Reduction gear for robot | |
| CN113124113A (en) | Electric drive system | |
| CN216951493U (en) | Novel convection planetary stirring mixing transmission device | |
| CN201269286Y (en) | Oscillating-tooth speed reducer of tubular electric motor | |
| CN2287233Y (en) | Differential combination jig transmission with less tooth difference |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Tubular motor reducer with combined involute and cycloid Effective date of registration: 20141021 Granted publication date: 20111130 Pledgee: Huizhou Merchants Bank, Hefei Shuguang Road subbranch Pledgor: Hefei Bolin Advanced Materials Co., Ltd. Registration number: 2014990000875 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20151020 Granted publication date: 20111130 Pledgee: Huizhou Merchants Bank, Hefei Shuguang Road subbranch Pledgor: Hefei Bolin Advanced Materials Co., Ltd. Registration number: 2014990000875 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Tubular motor reducer with combined involute and cycloid Effective date of registration: 20151022 Granted publication date: 20111130 Pledgee: Huizhou Merchants Bank, Hefei Shuguang Road subbranch Pledgor: Hefei Bolin Advanced Materials Co., Ltd. Registration number: 2015990000900 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 16 No. 230088 Anhui province high tech Zone of Hefei science and Technology Park Bo weir Magnolia Avenue Patentee after: HEFEI BOLIN ADVANCE MATERIALS CO., LTD. Address before: 16 No. 230088 Anhui province high tech Zone of Hefei science and Technology Park Bo weir Magnolia Avenue Patentee before: Hefei Bolin Advanced Materials Co., Ltd. |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20161010 Granted publication date: 20111130 Pledgee: Huizhou Merchants Bank, Hefei Shuguang Road subbranch Pledgor: Hefei Bolin Advanced Materials Co., Ltd. Registration number: 2015990000900 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Tubular motor reducer with combined involute and cycloid Effective date of registration: 20161014 Granted publication date: 20111130 Pledgee: Huizhou Merchants Bank, Hefei Shuguang Road subbranch Pledgor: HEFEI BOLIN ADVANCE MATERIALS CO., LTD. Registration number: 2016340000057 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180731 Granted publication date: 20111130 Pledgee: Huizhou Merchants Bank, Hefei Shuguang Road subbranch Pledgor: HEFEI BOLIN ADVANCE MATERIALS CO., LTD. Registration number: 2016340000057 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Tubular motor reducer with combined involute and cycloid Effective date of registration: 20180807 Granted publication date: 20111130 Pledgee: Feixi Anhui rural commercial bank Limited by Share Ltd Pledgor: HEFEI BOLIN ADVANCE MATERIALS CO., LTD. Registration number: 2018340000384 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200415 Granted publication date: 20111130 Pledgee: Feixi Anhui rural commercial bank Limited by Share Ltd Pledgor: HEFEI BOLIN ADVANCED MATERIALS Co.,Ltd. Registration number: 2018340000384 |