CN201144960Y - Biserial self-aligning roller bearing - Google Patents
Biserial self-aligning roller bearing Download PDFInfo
- Publication number
- CN201144960Y CN201144960Y CNU2007201961957U CN200720196195U CN201144960Y CN 201144960 Y CN201144960 Y CN 201144960Y CN U2007201961957 U CNU2007201961957 U CN U2007201961957U CN 200720196195 U CN200720196195 U CN 200720196195U CN 201144960 Y CN201144960 Y CN 201144960Y
- Authority
- CN
- China
- Prior art keywords
- bearing
- double
- roller
- aligning roller
- row self
- 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.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/06—Ball or roller bearings
- F16C23/08—Ball or roller bearings self-adjusting
- F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
- F16C23/086—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface forming a track for rolling elements
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/61—Toothed gear systems, e.g. support of pinion shafts
Landscapes
- Rolling Contact Bearings (AREA)
- Support Of The Bearing (AREA)
Abstract
The utility model relates to a double-row self-aligning roller bearing, comprising a bearing inner race and a bearing outer race, a solid cage arranged between the bearing outer race and the bearing inner race and is provided with a pocket, and a roller which is arranged in the pocket of the solid cage and is matched with the pocket, wherein, gear teeth are arranged on the outer wall of the bearing outer race; with the mode that the gear teeth are arranged on the outer wall of the bearing outer race of the double-row self-aligning roller bearing, the double-row self-aligning roller bearing can be directly engaged with a gear rather than being connected with a driving gear which is linked with the bearing, thereby the double-row self-aligning roller bearing has gear transmission function.
Description
Technical field
The utility model relates to a kind of bearing structure, relates in particular to a kind of double-row self-aligning roller bearing of compact structure.
Background technique
Double-row self-aligning roller bearing because the ability of its dynamic load rating that bears and rated static load much larger than common selfaligning roller bearing, therefore be widely used, in China's utility model application prospectus publication number be called for " CN 2702115 " name " double-row self-aligning roller bearing " patent disclosure a kind of double-row self-aligning roller bearing, this kind double-row self-aligning roller bearing, comprise the outer ring, inner ring, between outer ring and inner ring, be equiped with two retainers, it is characterized in that, be equiped with the roller of end face band depression in each pocket hole of described retainer respectively, on the retainer with roller end face on the depression corresponding part connecting lever is arranged, the connecting lever on the retainer embeds respectively in the depression on the with it corresponding roller end face; This kind double-row self-aligning roller bearing outer ring does not have tooth, but a cylndrical surface that is used for installing and locating, and roller is symmetric shape, and this kind double-row self-aligning roller bearing complex structure is not compact; In the capable driving mechanism of star, adopt this kind double-row self-aligning roller bearing also must adopt and cooperate driving gear and the coupling gear engagement that links with this bearing, make the physical dimension of this part become big, tied up installing space valuable in the capable driving mechanism of star.
The model utility content
The technical problems to be solved in the utility model provides a kind of compact structure, has the double-row self-aligning roller bearing of gear transmission and bearing self-aligning function.
The utility model is achieved through the following technical solutions:
A kind of double-row self-aligning roller bearing of the present utility model, it comprises: bearing outer ring, bearing inner race, be arranged between this bearing outer ring and the bearing inner race, have a solid cage in pocket hole, be arranged on the roller that cooperates in this solid cage pocket hole, with this pocket hole, wherein, the outer wall of described bearing outer ring is provided with the gear teeth; Employing is provided with the mode of the gear teeth at the outer wall of the bearing outer ring of double-row self-aligning roller bearing, make the double-row self-aligning roller bearing of this kind can connect the driving gear with its interlock, and direct and coupling gear engagement, thereby make this double-row self-aligning roller bearing have the gear transmission function.
Further, the described gear teeth are the gear teeth of involute shape profile of tooth, and the gear teeth that described bearing outer ring and its outer wall are provided with constitute involute gear; The profile of tooth of the gear teeth adopts involute shape, and the positive pressure direction on the point of contact when making the engagement of involute gear and coupling gear is tangent with the basic circle of involute all the time, and velocity ratio is constant in the time of can guaranteeing to mesh.
Described bearing outer ring inwall has the outer ring raceway that rolls for described roller, and this outer ring raceway is a spherical raceway; The spherical raceway that employing is arranged at the bearing outer ring inwall, make this double-row self-aligning roller bearing can: the gear teeth of bearing outer ring and its outer wall setting play the effect of aligning when constituting involute tooth wheel axis and bearing axis inclination; Utilize the big characteristics in spherical raceway space simultaneously, can increase the area of the cross section of roller, thereby improved the dynamic load rating that bears of bearing and the ability of rated static load.
On the said structure basis, wherein:
Described roller is the roller of two row asymmetrical shapes, and described solid cage is the solid cage with the asymmetrical shape in pocket hole; Because under the certain situation of bearing outer ring size, adopt the roller of asymmetrical shape, can make full use of the assembling workpiece space of outer ring raceway, roller than symmetric shape, it is bigger that the area of the cross section of the roller of asymmetrical shape can be done, thereby improve the dynamic load rating that bears of bearing and the ability of rated static load.
Described roller is the roller that cross sectional area changes.
As the further improvement of such scheme, described roller is the asymmetrical cone shape rollers of two row.
Described bearing inner race is provided with and is used to described bearing to add the oilhole and the oil groove that is connected with this oilhole of lubricant oil.
As the further improvement of such scheme, described bearing inner race is provided with the inner ring raceway that matches with described two row rollers, and the abutting end of this inner ring raceway and roller is provided with and is used to the clearance groov that prevents that inner ring raceway and roller from interfering; Interfere by the fillet that clearance groov both can prevent inner ring raceway and described roller is set, also can store lubricant oil simultaneously, for bearing provides lubricated and cooling.
Described inner ring raceway is two arc generatrix raceways, and described clearance groov is the circular arc clearance groov.
As the further improvement of such scheme, two the relative bearing axis of arc generatrix raceway angles of inclination of described inner ring raceway are the 15-17 degree.
Further, offer the mounting groove that is used to assemble and dismantle roller on the described bearing inner race.
Described mounting groove is a half slot.
The width of described bearing inner race is greater than the width of described bearing outer ring; The width of employing bearing inner race makes that greater than the mode of the width of described bearing outer ring the location of this bearing is more convenient.
A kind of double-row self-aligning roller bearing of the present utility model, employing is provided with the mode of the gear teeth at the outer wall of the bearing outer ring of double-row self-aligning roller bearing, make the double-row self-aligning roller bearing of this kind can connect the driving gear with its interlock, and direct and mate gear engagement, thereby make this double-row self-aligning roller bearing have the gear transmission function; In sum, this kind double-row self-aligning roller bearing simple in structure, compact, practicability is good, has gear transmission and bearing self-aligning function.
Description of drawings
In order to be easy to explanation, the utility model is done to describe in detail by following preferred embodiment and accompanying drawing.
Fig. 1 is this kind double-row self-aligning roller bearing side-looking structural representation;
Fig. 2 is the A-A direction sectional structure schematic representation of Fig. 1;
Fig. 3 is the three-dimensional decomposition texture schematic representation of a kind of double-row self-aligning roller bearing of the utility model;
Fig. 4 is the perspective view of the bearing inner race of this kind double-row self-aligning roller bearing;
Fig. 5 is the side-looking structural representation of the bearing inner race of this kind double-row self-aligning roller bearing;
Fig. 6 is the perspective view of the bearing holder of this kind double-row self-aligning roller bearing.
Embodiment
See also Fig. 1 to shown in Figure 6, a kind of double-row self-aligning roller bearing of the present utility model, it comprises: bearing outer ring 1, bearing inner race 2, be arranged between this bearing outer ring 1 and the bearing inner race 2, have a solid cage 3 in pocket hole 31, the roller 4 that be arranged in these solid cage 3 pocket holes 31, cooperates with this pocket hole 31, wherein, the outer wall of described bearing outer ring 1 is provided with the gear teeth 11; Employing is provided with the mode of the gear teeth 11 at the outer wall of the bearing outer ring 1 of double-row self-aligning roller bearing, make the double-row self-aligning roller bearing of this kind can connect the driving gear with its interlock, and direct and mate gear engagement, thereby make this double-row self-aligning roller bearing have the gear transmission function.
In this embodiment, the profile of tooth of the gear teeth 11 that the outer wall of bearing outer ring 1 is provided with adopts involute shape, and described bearing outer ring 1 constitutes involute gear with the gear teeth 11 that its outer wall is provided with; The profile of tooth of the gear teeth 11 adopts involute shape, and the positive pressure direction on the point of contact when making the engagement of involute gear and coupling gear is tangent with the basic circle of involute all the time, and velocity ratio is constant in the time of can guaranteeing to mesh.
In this embodiment, bearing outer ring 1 inwall has the outer ring raceway 12 that rolls for described roller 4, this outer ring raceway 12 is a spherical raceway, the spherical raceway 12 that employing is arranged at bearing outer ring 1 inwall makes this double-row self-aligning roller bearing play the effect of aligning in the time of can constituting the involute tooth wheel axis with the bearing axis inclination at the gear teeth 11 of: bearing outer ring 1 and its outer wall setting; Utilize the big characteristics in spherical raceway 12 spaces simultaneously, can increase the area of the cross section of roller 4, thereby improved the dynamic load rating that bears of bearing and the ability of rated static load.
In this embodiment, roller 4 is the roller of two row asymmetrical shapes, and described solid cage 3 is the solid cage 3 with the asymmetrical shape in pocket hole 31, and described solid cage 3 has two; Because under the certain situation of bearing outer ring 1 size, adopt the roller 4 of asymmetrical shape, can make full use of the assembling workpiece space of outer ring raceway 12, roller 4 than symmetric shape, it is bigger that the area of the cross section of the roller 4 of asymmetrical shape can be done, thereby improve the dynamic load rating that bears of bearing and the ability of rated static load; Roller 4 is the asymmetrical cone shape rollers of two row in the present embodiment.
In this embodiment, bearing inner race 2 is provided with and is used to described bearing to add the oilhole 21 and the oil groove 22 that is connected with this oilhole of lubricant oil.
Bearing inner race 2 is provided with the inner ring raceway 23 that matches with described two row rollers 4, and the abutting end of this inner ring raceway and roller 4 is provided with the clearance groov 231 that is used to prevent that inner ring raceway 23 and roller from interfering; Both can prevent by clearance groov 231 is set that the inner ring raceway 23 and the fillet of described roller 4 from interfering, also can store lubricant oil simultaneously, for bearing provides lubricated and cooling.
In this embodiment, inner ring raceway 23 is two arc generatrix raceways, and described clearance groov 231 is the circular arc clearance groov.
Two the relative bearing axis of arc generatrix raceway angles of inclination of described inner ring raceway 23 are the 15-17 degree.
Offer the semicircle mounting groove 24 that is used to assemble and dismantle roller 4 on the bearing inner race 2.
The width of bearing inner race 2 is greater than the width of described bearing outer ring 1; The width of employing bearing inner race makes that greater than the mode of the width of described bearing outer ring the location of this bearing is more convenient.
The assembling of the bearing in this embodiment is as follows with the unloading operation: earlier two solid cages 3 are packed in the bearing inner race 2, the end that the diameter of section of solid cage 3 is bigger leans on the lining, then the bearing inner race 2 and the solid cage 3 that are fitted together are put into bearing outer ring 1, rotate solid cage 3 gently and make the semicircle mounting groove 24 of room alignment bearings inner ring 2, next the roller 4 of packing at semicircle mounting groove 24 places of bearing inner race 2, wherein the end that roller 4 diameter of sections are bigger is by the lining, rotate solid cage 3 more gently and make the semicircle mounting groove 24 of room alignment bearings inner ring 2, next roller 4 pack successively into till filling, again according to top method dress another side.
During unloading, rotate solid cage 3 gently and make the semicircle mounting groove 24 of roller 4 alignment bearings inner rings 2, the roller 4 of dismantling, rotate solid cage 3 more gently and make the semicircle mounting groove 24 of roller 4 alignment bearings inner rings 2, unload next roller 4 successively until not having, the roller 4 that unloads another side again is until finishing; Unload inner ring 2 and solid cage 3 then.
The embodiment of the above is a better embodiment of the present utility model, is not to limit concrete practical range of the present utility model with this, and the equivalence that all shapes according to the utility model, structure are done changes all in protection domain of the present utility model.
Claims (10)
1. double-row self-aligning roller bearing, it comprises: bearing outer ring, bearing inner race, be arranged between this bearing outer ring and the bearing inner race, have a solid cage in pocket hole, be arranged in this solid cage pocket hole, with the roller that this pocket hole cooperates, it is characterized in that: the outer wall of described bearing outer ring is provided with the gear teeth.
2. a kind of double-row self-aligning roller bearing according to claim 1 is characterized in that: the described gear teeth are the gear teeth of involute shape profile of tooth, and the gear teeth that described bearing outer ring and its outer wall are provided with constitute involute gear.
3. a kind of double-row self-aligning roller bearing according to claim 2 is characterized in that: described bearing outer ring inwall has the outer ring raceway that rolls for described roller, and this outer ring raceway is a spherical raceway.
4. a kind of double-row self-aligning roller bearing according to claim 3 is characterized in that: described roller is the roller of two row asymmetrical shapes, and described solid cage is the solid cage with the asymmetrical shape in pocket hole.
5. a kind of double-row self-aligning roller bearing according to claim 4 is characterized in that: described roller is the asymmetrical cone shape rollers of two row.
6. a kind of double-row self-aligning roller bearing according to claim 2 is characterized in that: described bearing inner race is provided with and is used to described bearing to add the oilhole and the oil groove that is connected with this oilhole of lubricant oil.
7. a kind of double-row self-aligning roller bearing according to claim 4, it is characterized in that: described bearing inner race is provided with the inner ring raceway that matches with described two row rollers, and the abutting end of this inner ring raceway and roller is provided with and is used to the clearance groov that prevents that inner ring raceway and roller from interfering.
8. a kind of double-row self-aligning roller bearing according to claim 7 is characterized in that: described inner ring raceway is two arc generatrix raceways, and described clearance groov is the circular arc clearance groov.
9. a kind of double-row self-aligning roller bearing according to claim 7 is characterized in that: two the relative bearing axis of arc generatrix raceway angles of inclination of described inner ring raceway are the 15-17 degree.
10. a kind of double-row self-aligning roller bearing according to claim 7 is characterized in that: offer the mounting groove that is used to assemble and dismantle roller on the described bearing inner race.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201961957U CN201144960Y (en) | 2007-12-20 | 2007-12-20 | Biserial self-aligning roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201961957U CN201144960Y (en) | 2007-12-20 | 2007-12-20 | Biserial self-aligning roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201144960Y true CN201144960Y (en) | 2008-11-05 |
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ID=40081837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201961957U Expired - Fee Related CN201144960Y (en) | 2007-12-20 | 2007-12-20 | Biserial self-aligning roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201144960Y (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072256A (en) * | 2009-11-24 | 2011-05-25 | 阿母斯替德铁路公司 | Railway car roller bearing |
| CN102644659A (en) * | 2011-02-17 | 2012-08-22 | 陈海水 | Universal high-speed rotating bearing |
| CN103115070A (en) * | 2013-02-22 | 2013-05-22 | 山东凯美瑞轴承科技有限公司 | Self-aligning roller bearing retainer for brass entity, and forming method of retainer |
| CN104265864A (en) * | 2014-09-17 | 2015-01-07 | 常熟市华德粉末冶金有限公司 | Powder metallurgical planetary gear for high-power starter |
| CN104685243A (en) * | 2012-10-04 | 2015-06-03 | Skf公司 | Bearing cage & rolling element bearing |
| CN106763174A (en) * | 2017-02-20 | 2017-05-31 | 苏州骏创汽车科技股份有限公司 | A kind of bearing plastic parts for automobile |
| CN107639648A (en) * | 2017-10-27 | 2018-01-30 | 黄国彬 | A kind of robot waist structure |
| CN108026964A (en) * | 2015-09-17 | 2018-05-11 | Ntn株式会社 | Multiple row automatic self aligning roller bearing |
| CN109163011A (en) * | 2018-10-19 | 2019-01-08 | 瓦房店金峰轴承制造有限公司 | A kind of self-aligning roller bearing |
| CN109236853A (en) * | 2018-09-18 | 2019-01-18 | 贵州爱因斯凯轴承科技有限公司 | A kind of wear-resisting type roller bearing |
| CN110257610A (en) * | 2019-07-19 | 2019-09-20 | 安溪迈速则机械设计有限公司 | A kind of large scale carburizing steel double-row self-aligning roller bearing outer ring quenching mould |
| CN110725857A (en) * | 2019-10-30 | 2020-01-24 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Highly integrated double-axis bearing unit |
| EP3569882A4 (en) * | 2017-01-13 | 2020-10-14 | NTN Corporation | Double-row self-aligning roller bearing and protrusion prevention jig |
| CN111891369A (en) * | 2020-07-16 | 2020-11-06 | 常州华创航空科技有限公司 | Helicopter tail speed reducer and helicopter |
| CN112963442A (en) * | 2021-04-09 | 2021-06-15 | 山东欧冶轴承有限公司 | Special full complement roller shift bearing for continuous casting machine |
| CN115143186A (en) * | 2022-06-23 | 2022-10-04 | 洛阳Lyc轴承有限公司 | Wide outer lane aligning roller bearing of big angle of alignment |
| CN115143186B (en) * | 2022-06-23 | 2024-06-07 | 洛阳轴承集团股份有限公司 | Wide outer lane aligning roller bearing of big aligning angle |
-
2007
- 2007-12-20 CN CNU2007201961957U patent/CN201144960Y/en not_active Expired - Fee Related
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072256A (en) * | 2009-11-24 | 2011-05-25 | 阿母斯替德铁路公司 | Railway car roller bearing |
| CN102072256B (en) * | 2009-11-24 | 2013-06-12 | 阿母斯替德铁路公司 | Railway car roller bearing |
| CN102644659A (en) * | 2011-02-17 | 2012-08-22 | 陈海水 | Universal high-speed rotating bearing |
| CN102644659B (en) * | 2011-02-17 | 2014-04-02 | 陈海水 | Universal high-speed rotating bearing |
| CN104685243A (en) * | 2012-10-04 | 2015-06-03 | Skf公司 | Bearing cage & rolling element bearing |
| CN103115070A (en) * | 2013-02-22 | 2013-05-22 | 山东凯美瑞轴承科技有限公司 | Self-aligning roller bearing retainer for brass entity, and forming method of retainer |
| CN103115070B (en) * | 2013-02-22 | 2016-02-24 | 山东凯美瑞轴承科技有限公司 | A kind of brass entity aligning roller bearing retainer and forming method |
| CN104265864A (en) * | 2014-09-17 | 2015-01-07 | 常熟市华德粉末冶金有限公司 | Powder metallurgical planetary gear for high-power starter |
| CN108026964A (en) * | 2015-09-17 | 2018-05-11 | Ntn株式会社 | Multiple row automatic self aligning roller bearing |
| EP3569882A4 (en) * | 2017-01-13 | 2020-10-14 | NTN Corporation | Double-row self-aligning roller bearing and protrusion prevention jig |
| US10883544B2 (en) | 2017-01-13 | 2021-01-05 | Ntn Corporation | Double-row self-aligning roller bearing and protrusion prevention jig |
| CN106763174A (en) * | 2017-02-20 | 2017-05-31 | 苏州骏创汽车科技股份有限公司 | A kind of bearing plastic parts for automobile |
| CN107639648A (en) * | 2017-10-27 | 2018-01-30 | 黄国彬 | A kind of robot waist structure |
| CN109236853A (en) * | 2018-09-18 | 2019-01-18 | 贵州爱因斯凯轴承科技有限公司 | A kind of wear-resisting type roller bearing |
| CN109163011A (en) * | 2018-10-19 | 2019-01-08 | 瓦房店金峰轴承制造有限公司 | A kind of self-aligning roller bearing |
| CN110257610A (en) * | 2019-07-19 | 2019-09-20 | 安溪迈速则机械设计有限公司 | A kind of large scale carburizing steel double-row self-aligning roller bearing outer ring quenching mould |
| CN110725857A (en) * | 2019-10-30 | 2020-01-24 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Highly integrated double-axis bearing unit |
| CN110725857B (en) * | 2019-10-30 | 2024-02-09 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | High-integration double-shaft spindle bearing unit |
| CN111891369A (en) * | 2020-07-16 | 2020-11-06 | 常州华创航空科技有限公司 | Helicopter tail speed reducer and helicopter |
| CN112963442A (en) * | 2021-04-09 | 2021-06-15 | 山东欧冶轴承有限公司 | Special full complement roller shift bearing for continuous casting machine |
| CN115143186A (en) * | 2022-06-23 | 2022-10-04 | 洛阳Lyc轴承有限公司 | Wide outer lane aligning roller bearing of big angle of alignment |
| CN115143186B (en) * | 2022-06-23 | 2024-06-07 | 洛阳轴承集团股份有限公司 | Wide outer lane aligning roller bearing of big aligning angle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081105 Termination date: 20161220 |
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| CF01 | Termination of patent right due to non-payment of annual fee |