CN202744926U - Amplitude adjusting device for intelligent vibration road roller - Google Patents
Amplitude adjusting device for intelligent vibration road roller Download PDFInfo
- Publication number
- CN202744926U CN202744926U CN201220235565.4U CN201220235565U CN202744926U CN 202744926 U CN202744926 U CN 202744926U CN 201220235565 U CN201220235565 U CN 201220235565U CN 202744926 U CN202744926 U CN 202744926U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 238000006073 displacement reaction Methods 0.000 claims abstract description 12
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 239000002828 fuel tank Substances 0.000 claims description 9
- 230000001133 acceleration Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 4
- 238000005056 compaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses an amplitude adjusting device for an intelligent vibration road roller, which is low in cost. The amplitude adjusting device adopts the structure that an inner roller transmission shaft is fixedly hinged with an inner roller; the left side of the inner roller transmission shaft is mounted on a center board at the right of an outer roller through a bearing; the right side of the inner roller transmission shaft is mounted in a center hole of a transmission sleeve through the bearing; the transmission sleeve is fixedly hinged with a rotation component of a driving motor; the inner roller transmission shaft is fixedly hinged with a moving part of a locking cylinder through a shaft coupling; a displacement transducer is arranged at the right end of the locking cylinder; the fixed part of the housing of a clutch is fixedly hinged with the inner side surface of the left side wall of a box body; a driven rotational movement part of the clutch is fixedly hinged with the inner roller transmission shaft; the driving rotational movement part of the clutch is fixedly hinged with the transmission sleeve; the locking cylinder is connected with an electromagnetic valve through a fluid pipeline; and the electromagnetic valve is used for connecting or disconnecting two cavities of the locking cylinder. The adjusting device is suitable for automatic adjustment of the amplitude of the intelligent vibration road roller.
Description
Technical field
The utility model relates to a kind of constructional engineering machinery, and specifically, the utility model is a kind of mechanical device of adjusting about intelligent vibration road roller Oscillation Amplitude.
Background technology
At present, it is many that both at home and abroad vibratory roller adopts the mode of operation of manual control luffing, and automatically adjusting the mode that amplitude generally adopts is the direction of rotation that changes vibration shaft of vibration roller, only may be able to realize the adjustment of two-stage amplitude.In road and place compacting work progress, the material difference that the soil property of the construction site of different geographical, basal layer and subbase are used, the working condition of road roller is comparatively complicated, in speedway and high-grade, high-quality place construction, requires construction equipment that higher performance is arranged.The existing double-amplitude road roller that generally uses, do not adapt to the requirement of multiple different operating situation, many amplitude vibrations road roller has appearred for this reason, even if reach 8 grades of amplitudes, still can not satisfy the harsh requirement of modern pavement construction, the ungraded amplitude vibratory roller grows up on the basis of double-amplitude and many amplitude vibrations road roller.The intelligent vibration road roller can be realized ungraded amplitude, can automatically amplitude, frequency and the speed of travel etc. of vibratory roller be regulated according to the variation that is compacted the material compaction situation, makes compacting operation obtain optimum efficiency.With respect to the classification amplitude modulation mechanism, stepless amplitude-modulation mechanism is more complex, realize relatively difficulty, in a kind of ungraded amplitude system of comparative maturity two eccentric shafts are arranged, a vibrating shaft passes through fluid motor-driven, another root vibrating shaft is by the gear set drive on two eccentric shafts, the position relationship of this two eccentric shaft can drive by hydraulic jack and regulate, hydraulic jack is controlled by electro-hydraulic proportional servo valve, control system is carried out pulse width modulation according to the amplitude instruction that the degree of compaction meter provides, the time of control electro-hydraulic proportional servo valve break-make, control is by the flow of hydraulic oil in the hydraulic jack, regulator solution compressing cylinder position, and then adjust the relative position of two eccentric shafts, reach the purpose of adjusting amplitude, but the electro-hydraulic proportional servo valve cost compare that uses is high, and then causes the construction costs of intelligent roller higher, and impact is promoted the use of.
The utility model content
Technical problem to be solved in the utility model is the shortcoming that overcomes prior art, and a kind of intelligent vibration amplitude of road roller adjusting device that can reduce cost is provided.
In order to solve the technical problem of above-mentioned existence, the utility model adopts following technical proposals: chief component comprises left damper, vibrating motor, the exciting power transmission shaft, outer cylinder, interior cylinder, the first exciting travelling gear, the second exciting travelling gear, the 3rd exciting travelling gear, the 4th exciting travelling gear, the first vibrating shaft, the second vibrating shaft, the first eccentric block, the second eccentric block, CD-ROM drive motor, interior drum drive axle and right damper, the right side former of the rotatable parts of CD-ROM drive motor and outer cylinder is fixedly connected, left side former and right side former and outer cylinder are fixedly connected, vibrating motor is fixedly connected by shaft coupling and exciting power transmission shaft, the exciting power transmission shaft is installed in by bearing in the centre bore of back shaft of interior cylinder, the back shaft of interior cylinder is installed on the left side former of outer cylinder by bearing, the axle journal of the left side former of outer cylinder is rack-mount by bearing, the right-hand member of exciting power transmission shaft drives with the second vibrating shaft by the first exciting travelling gear and the second exciting travelling gear and connects, the right-hand member of the first exciting travelling gear and exciting power transmission shaft is fixedly connected, the left end of the second exciting travelling gear and the second vibrating shaft is fixedly connected, the second vibrating shaft drives with the first vibrating shaft by the 4th exciting travelling gear and the 3rd exciting travelling gear and connects, the right-hand member of the 4th exciting travelling gear and the second vibrating shaft is fixedly connected, the right-hand member of the 3rd exciting travelling gear and the first vibrating shaft is fixedly connected, the first eccentric block and the first vibrating shaft are fixedly connected, the second eccentric block and the second vibrating shaft are fixedly connected, the two ends of described the first vibrating shaft and the second vibrating shaft all are installed on the both sides former of interior cylinder by bearing, the left end of described interior drum drive axle and the right-hand member of interior cylinder are fixedly connected, described interior drum drive axle passes the centre bore of drive socket, passing on left on the right side former that bearing is installed in outer cylinder of described interior drum drive axle, the right side of described interior drum drive axle is installed in the centre bore of drive socket by bearing, the rotatable parts of described drive socket and CD-ROM drive motor are fixedly connected, the right-hand member of described interior drum drive axle is fixedly connected by the moving component of shaft coupling and locking cylinder, the right-hand member of described locking cylinder is provided with angular displacement sensor, the casing of described angular displacement sensor and the standing part of locking cylinder are fixedly connected, and the moving component of described angular displacement sensor power shaft and locking cylinder is fixedly connected; The casing standing part of clutch and the left side wall inner side of casing are fixedly connected, the driven rotating moving part of described clutch and interior drum drive axle are fixedly connected, active rotation moving component and the drive socket of described clutch are fixedly connected, described locking cylinder is connected with electromagnetic valve by fluid circuit, described electromagnetic valve can be communicated with two chambeies of locking cylinder or disconnect, and acceleration transducer is fixedly connected on casing.
Described drive socket is T shape flange plate structure; Described the first eccentric block and the second eccentric block are with respect to the symmetrical installation of the axial line of interior cylinder; Described locking cylinder is the swing hydraulic pressure oil cylinder, one chamber of locking cylinder is connected with fuel tank by one way valve, another chamber is connected with fuel tank by another one way valve, the direction of two one way valve conductings be from the fuel tank to the locking cylinder working chamber, play to the effect of locking cylinder working chamber repairing; Described locking cylinder is the Pneumatic swinging cylinder, and two one way valves all are connected with atmospheric environment with in addition two ends outside the Pneumatic swinging cylinder is connected; Described clutch is electromagnetic clutch; Described clutch is hydraulic clutch.
Owing to adopting technique scheme, the intelligent vibration amplitude of road roller adjusting device that the utility model provides has such beneficial effect, amplitude is adjusted in the drum rotating motion in namely can driving with CD-ROM drive motor, save an electro-hydraulic proportional servo valve, reduce the cost of intelligent vibration road roller, be of value to and promote the use of.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the front view of intelligent vibration amplitude of road roller adjusting device described in the utility model;
Fig. 2 is the locking cylinder of intelligent vibration amplitude of road roller adjusting device described in the utility model and the oil circuit connection layout of electromagnetic valve;
Fig. 3 is the locking cylinder of intelligent vibration amplitude of road roller adjusting device described in the utility model and the gas circuit connection layout of electromagnetic valve.
In figure: right damper 21 locking cylinder 22 angular displacement sensor 23 CD-ROM drive motor 24 casing 25 acceleration transducer 26 check valve 27,28 magnetic valves 29 of left damper 1 vibrating motor 2 back shaft 3 left side former 4 support outer cylinder 7 second exciting travelling gear interior cylinder 10 first vibrating shaft 11 second vibrating shaft 12 first eccentric block 13 second eccentric block 14 the 3rd exciting travelling gear 15 the 4th exciting travelling gear interior drum drive axle 18 drive socket 19 clutch 20 of 16 right side former 17 of 8 first exciting travelling gear 9 of 5 exciting power transmission shaft 6
The specific embodiment
In Fig. 1 and Fig. 2, intelligent vibration amplitude of road roller adjusting device chief component comprises left damper 1, vibrating motor 2, exciting power transmission shaft 6, outer cylinder 7, interior cylinder 10, the first exciting travelling gear 9, the second exciting travelling gear 8, the 3rd exciting travelling gear 15, the 4th exciting travelling gear 16, the first vibrating shaft 11, the second vibrating shaft 12, the first eccentric block 13, the second eccentric block 14, CD-ROM drive motor 24, interior drum drive axle 18 and right damper 21, the rotatable parts of CD-ROM drive motor 24 are bolted with the right side former 17 of outer cylinder 7 and connect, left side former 4 and right side former 17 are fixedly connected with outer cylinder 7, vibrating motor 2 is fixedly connected by spline housing shaft coupling and exciting power transmission shaft 6, exciting power transmission shaft 6 is installed in by bearing in the centre bore of back shaft 3 of interior cylinder 10, the back shaft 3 of interior cylinder 10 is installed on the left side former 4 of outer cylinder 7 by bearing, the axle journal of the left side former 4 of outer cylinder 7 is installed on the support 5 by bearing, the right-hand member of exciting power transmission shaft 6 drives with the second vibrating shaft 12 by the first exciting travelling gear 9 and the second exciting travelling gear 8 and connects, the first exciting travelling gear 9 is fixedly connected by key with the right-hand member of exciting power transmission shaft 6, the left end of the second exciting travelling gear 8 and the second vibrating shaft 12 is fixedly connected by key, the second vibrating shaft 12 drives with the first vibrating shaft 11 by the 4th exciting travelling gear 16 and the 3rd exciting travelling gear 15 and connects, the right-hand member of the 4th exciting travelling gear 16 and the second vibrating shaft 12 is fixedly connected by key, the right-hand member of the 3rd exciting travelling gear 15 and the first vibrating shaft 11 is fixedly connected by key, the first eccentric block 13 and the first vibrating shaft 11 adopt the mode of welding to be fixedly connected, the second eccentric block 14 and the second vibrating shaft 12 adopt the mode of welding to be fixedly connected, a bearing is respectively installed at the two ends of the first vibrating shaft 11 and the second vibrating shaft 12, be installed in by bearing on the both sides former of interior cylinder 10, left damper 1 is bolted with support 5 and connects, right damper 21 is bolted with casing 25 and connects, left damper 1 and right damper 21 are bolted with the frame of road roller and connect, the left end of described interior drum drive axle 18 is bolted with the right-hand member of interior cylinder 10 and connects, interior drum drive axle 18 passes the centre bore of drive socket 19, passing on left on the right side former 17 that bearing is installed in outer cylinder 7 of interior drum drive axle 18, the right side of described interior drum drive axle 18 is installed in drive socket 19 centre bores by bearing, described drive socket 19 is bolted with the rotatable parts of CD-ROM drive motor 24 and connects, the right-hand member of described interior drum drive axle 18 is fixedly connected by the moving component of spline housing shaft coupling and locking cylinder 22, the right-hand member of described locking cylinder 22 is provided with angular displacement sensor 23, the standing part of the casing of described angular displacement sensor 23 and locking cylinder 22 is fixedly connected, and the output movement parts of described angular displacement sensor 23 power shafts and locking cylinder 22 are fixedly connected by yielding coupling; The casing standing part of clutch 20 is bolted with the left side wall inner side of casing 25 and connects, the driven rotating moving part of described clutch 20 and interior drum drive axle 18 are fixedly connected by key, the active rotation moving component of described clutch 20 and drive socket 19 are fixedly connected by key, locking cylinder 22 is connected with electromagnetic valve 29 by fluid circuit, electromagnetic valve 29 can be communicated with two chambeies of locking cylinder 22 or disconnect, and acceleration transducer 26 adopts bolt to be fixedly connected on casing 25.
Described drive socket 19 is T shape flange plate structure, adopts Bolt Connection between flange end face and the right side former 17; Described the first eccentric block 13 and the second eccentric block 14 are with respect to the symmetrical installation of the axial line of interior cylinder 10; Described locking cylinder 22 adopts the swing hydraulic pressure oil cylinder, one chamber of locking cylinder 22 is connected with fuel tank by one way valve 27, another chamber is connected with fuel tank by another one way valve 28, the direction of two one way valve conductings be from the fuel tank to the locking cylinder 22 working chamber, play to the effect of locking cylinder 22 working chamber repairings; Locking cylinder 22 also can adopt the Pneumatic swinging oil cylinder, at this moment, one chamber of locking cylinder 22 is connected with atmospheric environment by one way valve 27, another chamber is connected with atmospheric environment by another one way valve 28, the direction of two one way valve conductings be from the atmospheric environment to the locking cylinder 22 working chamber, play to the effect of locking cylinder 22 working chamber tonifying Qi; Described clutch 20 adopts electromagnetic clutch, and described clutch 20 also can adopt hydraulic clutch.
During vibratory roller walking compacting work, clutch 20 is not worked, controller provides the state that instruction is operated in electromagnetic valve 29 22 two working chambers of locking cylinder are disconnected, interior cylinder 10 is fixed on the operating position by locking cylinder 22, the first vibrating shaft 11 and the second vibrating shaft 12 rotate under the driving of vibrating motor 2 and produce vibration, be delivered on the outer cylinder 7 by left side former 4 and right side former 17, and then be applied to the purpose that reaches compacting on the ground.The information that the intelligent vibration road roller provides according to compactor is carried out amplitude when automatically adjusting, controller provides first the state that instruction is operated in electromagnetic valve 29 22 two working chambers of locking cylinder are interconnected, controller provides instruction again and makes clutch 20 work, driven rotating moving part and the active rotation moving component of clutch 20 are closely linked, both are synchronized with the movement, CD-ROM drive motor 24 rotatablely moves jointly by the moving component that drive socket 19 can drive interior drum drive axle 18 and locking cylinder 22 thus, angular displacement sensor 23 provides the angle position feedback information of interior cylinder 10, after arriving the operating position that needs, controller provides the state that instruction is operated in electromagnetic valve 29 22 two working chambers of locking cylinder are disconnected, interior cylinder 10 just maintains static in new operating position, the first vibrating shaft 11 and the second vibrating shaft 12 rotatablely move and produce vibration variation has just been occured for the component of ground direction, thereby reach the purpose of adjusting amplitude.In the course of work of above-mentioned adjustment amplitude, interior cylinder 10 changes the position and is driven by CD-ROM drive motor 24.
Claims (7)
1. intelligent vibration amplitude of road roller adjusting device, mainly comprise left damper (1), vibrating motor (2), exciting power transmission shaft (6), outer cylinder (7), interior cylinder (10), the first exciting travelling gear (9), the second exciting travelling gear (8), the 3rd exciting travelling gear (15), the 4th exciting travelling gear (16), the first vibrating shaft (11), the second vibrating shaft (12), the first eccentric block (13), the second eccentric block (14), CD-ROM drive motor (24), interior drum drive axle (18) and right damper (21), the right side former (17) of the rotatable parts of CD-ROM drive motor (24) and outer cylinder (7) is fixedly connected, left side former (4) and right side former (17) are fixedly connected with outer cylinder (7), vibrating motor (2) is fixedly connected by shaft coupling and exciting power transmission shaft (6), exciting power transmission shaft (6) is installed in by bearing in the centre bore of back shaft (3) of interior cylinder (10), the back shaft (3) of interior cylinder (10) is installed on the left side former (4) of outer cylinder (7) by bearing, the axle journal of the left side former (4) of outer cylinder (7) is installed on the support (5) by bearing, the right-hand member of exciting power transmission shaft (6) drives with the second vibrating shaft (12) by the first exciting travelling gear (9) and the second exciting travelling gear (8) and connects, the first exciting travelling gear (9) is fixedly connected with the right-hand member of exciting power transmission shaft (6), the second exciting travelling gear (8) is fixedly connected with the left end of the second vibrating shaft (12), the second vibrating shaft (12) drives with the first vibrating shaft (11) by the 4th exciting travelling gear (16) and the 3rd exciting travelling gear (15) and connects, the 4th exciting travelling gear (16) is fixedly connected with the right-hand member of the second vibrating shaft (12), the 3rd exciting travelling gear (15) is fixedly connected with the right-hand member of the first vibrating shaft (11), the first eccentric block (13) is fixedly connected with the first vibrating shaft (11), the second eccentric block (14) is fixedly connected with the second vibrating shaft (12), the two ends of described the first vibrating shaft (11) and the second vibrating shaft (12) all are installed on the both sides former of interior cylinder (10) by bearing, it is characterized in that: the right-hand member of the left end of described interior drum drive axle (18) and interior cylinder (10) is fixedly connected, described interior drum drive axle (18) passes the centre bore of drive socket (19), passing on left on the right side former (17) that bearing is installed in outer cylinder (7) of described interior drum drive axle (18), the right side of described interior drum drive axle (18) is installed in the centre bore of drive socket (19) by bearing, described drive socket (19) is fixedly connected with the rotatable parts of CD-ROM drive motor (24), the right-hand member of described interior drum drive axle (18) is fixedly connected by the moving component of shaft coupling and locking cylinder (22), the right-hand member of described locking cylinder (22) is provided with angular displacement sensor (23), the standing part of the casing of described angular displacement sensor (23) and locking cylinder (22) is fixedly connected, and the moving component of described angular displacement sensor (23) power shaft and locking cylinder (22) is fixedly connected; The left side wall inner side of the casing standing part of clutch (20) and casing (25) is fixedly connected, the driven rotating moving part of described clutch (20) and interior drum drive axle (18) are fixedly connected, the active rotation moving component of described clutch (20) and drive socket (19) are fixedly connected, described locking cylinder (22) is connected with electromagnetic valve (29) by fluid circuit, described electromagnetic valve (29) can be communicated with two chambeies of locking cylinder (22) or disconnect, and acceleration transducer (26) is fixedly connected on casing (25).
2. intelligent vibration amplitude of road roller adjusting device according to claim 1, it is characterized in that: described drive socket (19) is T shape flange plate structure.
3. intelligent vibration amplitude of road roller adjusting device according to claim 1, it is characterized in that: described the first eccentric block (13) and the second eccentric block (14) are with respect to the symmetrical installation of axial line of interior cylinder (10).
4. intelligent vibration amplitude of road roller adjusting device according to claim 1, it is characterized in that: described locking cylinder (22) is the swing hydraulic pressure oil cylinder, one chamber of locking cylinder (22) is connected with fuel tank by one way valve (27), another chamber is connected with fuel tank by another one way valve (28), the direction of two one way valve conductings be from the fuel tank to the locking cylinder (22) working chamber, play to the effect of locking cylinder (22) working chamber repairing.
5. intelligent vibration amplitude of road roller adjusting device according to claim 1, it is characterized in that: described locking cylinder (22) is the Pneumatic swinging cylinder, two one way valves all are connected with atmospheric environment with in addition two ends outside the Pneumatic swinging cylinder is connected.
6. intelligent vibration amplitude of road roller adjusting device according to claim 1, it is characterized in that: described clutch (20) is electromagnetic clutch.
7. intelligent vibration amplitude of road roller adjusting device according to claim 1, it is characterized in that: described clutch (20) is hydraulic clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220235565.4U CN202744926U (en) | 2012-05-24 | 2012-05-24 | Amplitude adjusting device for intelligent vibration road roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220235565.4U CN202744926U (en) | 2012-05-24 | 2012-05-24 | Amplitude adjusting device for intelligent vibration road roller |
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| Publication Number | Publication Date |
|---|---|
| CN202744926U true CN202744926U (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220235565.4U Expired - Fee Related CN202744926U (en) | 2012-05-24 | 2012-05-24 | Amplitude adjusting device for intelligent vibration road roller |
Country Status (1)
| Country | Link |
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| CN (1) | CN202744926U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691248A (en) * | 2012-05-24 | 2012-09-26 | 青岛科技大学 | Amplitude adjustment device for intelligent vibratory roller |
| CN104649016A (en) * | 2013-11-25 | 2015-05-27 | 浙江跃岭股份有限公司 | Electric suspension track |
| CN106758699A (en) * | 2016-12-07 | 2017-05-31 | 河南科技大学 | Road roller exciting device, road roller rolling wheel and road roller |
| CN109958032A (en) * | 2017-12-23 | 2019-07-02 | 蒋芳荣 | A kind of bituminous pavement efficiently rubs pressure device |
| US10465354B2 (en) | 2016-12-15 | 2019-11-05 | Caterpillar Inc. | Hydraulic fluid systems for machine implements |
-
2012
- 2012-05-24 CN CN201220235565.4U patent/CN202744926U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691248A (en) * | 2012-05-24 | 2012-09-26 | 青岛科技大学 | Amplitude adjustment device for intelligent vibratory roller |
| CN102691248B (en) * | 2012-05-24 | 2015-01-28 | 青岛科技大学 | Amplitude adjustment device for intelligent vibratory roller |
| CN104649016A (en) * | 2013-11-25 | 2015-05-27 | 浙江跃岭股份有限公司 | Electric suspension track |
| CN104649016B (en) * | 2013-11-25 | 2018-07-06 | 浙江跃岭股份有限公司 | A kind of electrically floating track |
| CN106758699A (en) * | 2016-12-07 | 2017-05-31 | 河南科技大学 | Road roller exciting device, road roller rolling wheel and road roller |
| CN106758699B (en) * | 2016-12-07 | 2019-06-04 | 河南科技大学 | Road roller exciting device, road roller rolling wheel and road roller |
| US10465354B2 (en) | 2016-12-15 | 2019-11-05 | Caterpillar Inc. | Hydraulic fluid systems for machine implements |
| CN109958032A (en) * | 2017-12-23 | 2019-07-02 | 蒋芳荣 | A kind of bituminous pavement efficiently rubs pressure device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20130524 |