CN103190229B - Electric-control mechanical stepless row spacing regulator for seeder - Google Patents
Electric-control mechanical stepless row spacing regulator for seeder Download PDFInfo
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- CN103190229B CN103190229B CN201310125953.6A CN201310125953A CN103190229B CN 103190229 B CN103190229 B CN 103190229B CN 201310125953 A CN201310125953 A CN 201310125953A CN 103190229 B CN103190229 B CN 103190229B
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Abstract
The invention relates to an electric-control mechanical stepless row spacing regulator for a seeder. The electric-control mechanical stepless row spacing regulator comprises a tank body, and a power input device, a power output device, a transmission device, a regulating device, a plurality of sets of oscillating bar reset devices, a limiting device, a displacement detection device and a row spacing indicating device which are arranged in the tank body. The row spacing regulator is characterized in that the power input device comprises an input shaft, a spacer sleeve I and a plurality of cams spaced at a certain angle, two guide racks are arranged in the middle of two ends of a regulating rack, the lower end of the regulating rack is provided with oscillating shafts equal to the cams, roller oscillating bars penetrate the oscillating shafts at intervals, one end with a roller of each roller oscillating bar is pressed on the corresponding cam by the corresponding oscillating rod reset device, the other end of each roller oscillating bar is hinged with a clutch housing, a screw worm of the regulating device horizontally penetrates the regulating rack, one end, close to the worm, of the regulating device extends out of the tank body to be connected with a gear motor shaft, and a micro sliding block displacement sensor probe of the displacement detection device is fixed on the regulating rack. The electric-control mechanical stepless row spacing regulator for the seeder can be used for performing stepless regulation on row spacing so as to achieve variable seeding.
Description
Technical field
The present invention relates to the automatically controlled spacing in the rows mechanical stepless adjuster of a kind of sower, belong to agricultural machinery technological field.
Background technology
During corn seeding, spacing in the rows affects the major parameter that milpa accepts illumination and corn yield.Therefore, spacing in the rows adjustment is the important device of maize precise sowing machine.At present, on domestic market, the spacing in the rows of corn drill regulates the gears meshing mainly through changing different drive ratios to regulate, concrete form has machinery to have a grade adjuster, spoon disc type seeding unit etc. with level adjuster, the level that has that these devices can only realize spacing in the rows regulates, and can not realize the step-less adjustment of spacing in the rows.Variable seeder produced in USA adopts electric-controlled hydraulic motor variable fertilization sowing executing agency, step-less adjustment is realized by the rotating speed of the aperture hydraulic control motor changing hydraulic proportion valve, but this kind of governor motion design is complicated, cost is higher, cannot adapt to the national conditions that Chinese Small burden is cultivated.
Summary of the invention
The object of the present invention is to provide that a kind of structure is simple, transmission efficiency is high, good reliability, cost are low, can the automatically controlled spacing in the rows mechanical stepless adjuster of sower of step-less adjustment sowing spacing in the rows.Its technical scheme is:
The automatically controlled spacing in the rows mechanical stepless adjuster of a kind of sower, it is characterized in that: comprise casing and the power input device, power take-off, transmission device, adjusting device, many cover fork resetting means, stopping means, displacement detector, the spacing in the rows indicating device that are arranged on box house, wherein:
Power input device is arranged on the bottom in casing, comprises through the power shaft of bearing horizontal support on casing, is fixed on multiple cam on power shaft and interval and is arranged on spacer sleeve I between cam;
Power take-off is arranged on the top in casing, comprise through the output shaft of bearing horizontal support on casing, with freewheel clutch and multiple spacer sleeve II of the quantity such as cam, wherein multiple freewheel clutch is all fixed on output shaft, between adjacent freewheel clutch, interval is with spacer sleeve II, a clutch end cover and a bell housing hub is all established corresponding to each freewheel clutch, freewheel clutch is positioned at clutch end cover and docks with bell housing hub the cavity formed, corresponding to the groove on freewheel clutch end face, clutch end covers and is provided with projection, protruding correspondence is inserted in groove, clutch end cover is fixedly connected with bell housing hub sunk screw, power shaft is parallel with output shaft, and the two ends of separation casing, the input of power shaft and the output of output shaft lean out casing, and the both sides of separation casing,
Transmission device comprise two guide rails, adjusting bracket, leading truck, with many balance staffs of the quantity such as cam and Duo Gen roller fork, wherein two guide rail levels are arranged on the inwall of casing, vertical with output shaft and be positioned in same level with output shaft; Adjusting bracket is between power shaft and output shaft, the middle part at adjusting bracket two ends is all provided with two leading trucks, be positioned at the both sides of two leading truck separation adjusting brackets of same one end, the lower inside of each leading truck is all provided with bearing, and bearings is on guide rail upper surface; The middle part of adjusting bracket is provided with the adjusting nut cover running through adjusting bracket, the lower end of adjusting bracket has the multiple identical notch I with quantity such as cams, the side of adjusting bracket upper end has a notch II, the balance staff that in each notch I, installation one is with holes, balance staff is arranged on the sidewall of notch I through bearing, and multiple balance staff is positioned on same axis; The Nei Jun gap, hole of each balance staff is through a roller fork, and one end that roller fork is provided with roller is pressed on cam, and the other end and the bell housing hub of roller fork are hinged;
Adjusting device comprises spiral shell worm screw, support I, bearing block, reducing motor and the motor supporting base be fixedly mounted on support I, wherein spiral shell worm screw is by screw rod and worm screw is coaxial forms, reducing motor is fixedly mounted on outside casing through motor supporting base, support I level to be arranged in casing and to be positioned at the top of power shaft, spiral shell worm screw is horizontal through adjusting nut cover, spiral shell worm screw is arranged in the bearing block on support I near one end of screw rod, spiral shell worm screw is overhanging horizontal through the bearing on wall box near one end of worm screw, and spiral shell worm screw overhanging end is connected with reducing motor axle;
The equal corresponding a set of fork resetting means of each cam, often overlap fork resetting means and include chassis, be vertically fixed on the push rod on chassis, be sleeved on the telescopic on push rod, to be sleeved on push rod and the stage clip be positioned at inside telescopic and be secured across support I and be enclosed within the guide pin bushing on telescopic, wherein guide pin bushing internal diameter is slightly larger than telescopic external diameter, telescopic sidewall is provided with elongated slot vertically, guide pin bushing is provided with screw, screw is inserted in elongated slot, the lower surface on chassis is pressed in roller on cam, bolt passes perpendicularly through chassis and telescopic from gap, lower surface, chassis, and be fixed on chassis, bolt to be screwed on two nuts away from the one end on chassis, certain interval is had between chassis and telescopic lower surface, chassis and telescopic be upper and lower relative movement cam lift in guide pin bushing,
Stopping means comprises two proximity switches and support II, and its medium-height trestle II level to be arranged in casing and to be positioned at the top of output shaft, and two proximity switches are arranged on support I and support II side towards adjusting bracket respectively;
Displacement detector comprises miniature slider displacement sensor and installing plate, wherein installing plate level, gap are through the notch II on adjusting bracket, be fixedly mounted between support I and support II, miniature slider displacement sensor is fixedly mounted on the bottom of installing plate, and gap is through the notch II on adjusting bracket, on the probe secured adjusted frame of miniature slider displacement sensor;
Spacing in the rows indicating device comprises worm gear, rotating shaft, axle sleeve, pointer and end cap, its bottom bracket axle passes box cover and is fixed on box cover, box cover joint pin is connected with casing, the top of axle sleeve is provided with end cap, the rotating shaft be arranged in axle sleeve through bearing runs through axle sleeve, and lower end is connected with worm gear key, and upper gap passes end cap, pointer level is arranged on the top of rotating shaft, and worm gear coordinates with spiral shell worm screw.
The automatically controlled spacing in the rows mechanical stepless adjuster of described sower, cam adopts three, and three cams are fixed on power shaft with 120 °.
The automatically controlled spacing in the rows mechanical stepless adjuster of described sower, cam adopts four, and four cams are fixed on power shaft with 90 °.
Its operation principle is: cam uniform rotation under the drive of power input shaft, and roller fork swings up and down around balance staff under the promotion of cam, and then drives freewheel clutch reciprocating rotation, makes power take-off single direction rotation and outputting power; Reducing motor drives spiral shell worm screw bidirectional rotation under the control of peripheral control unit, adjusting bracket is driven to move by adjusting nut cover, and then regulate the position of roller fork and balance staff contact point, change the length ratio of contact point both sides roller fork, and then change the pendulum angle of bell housing hub, complete the step-less adjustment of sowing spacing in the rows; Proximity switch gives peripheral control unit by holding wire signal feedback, moves carry out spacing control to adjusting bracket; The probe of miniature slider displacement sensor moves with adjusting bracket, by holding wire, peripheral control unit is passed in the position of adjusting bracket, completes adjusting bracket positioning control.
Compared with prior art, tool has the following advantages in the present invention:
(1) the frame for movement be made up of in conjunction with roller fork, balance staff, adjusting bracket, freewheel clutch multiple cam of the present invention's design, can realize output shaft continuous rotation, can driving torque effectively, and structure is simple, and operating efficiency is high, good reliability, and cost is low;
(2) the leading truck of the present invention's design, can the dancing of elimination adjusting bracket in guide pass moving process effectively;
(3) the spacing in the rows that the present invention designs regulates, indicating device, can change position and the display spacing in the rows regulated quantity of adjusting bracket smoothly;
(4) the fork resetting means of the present invention's design, can guarantee roller fork and cam close contact;
(5) the positional information of the displacement detector energy Real-Time Monitoring adjusting bracket of the present invention's design, so that peripheral control unit accurately controls to adjust the position of frame;
(6) the present invention can carry out the step-less adjustment sowing spacing in the rows in real time, realizes corn quantity-variation type seeding.
Accompanying drawing explanation
Fig. 1 is the complete machine structure schematic diagram removing adjuster upper cover plate and front side board.
Fig. 2 is power input device structural representation.
Fig. 3 is power take-off structural representation.
Fig. 4 is spacing in the rows indicating device structural representation.
Fig. 5 is spacing in the rows indicating device position structural representation on box cover.
Fig. 6 is fork resetting means structural representation.
Fig. 7 is roller fork position structural representation on adjusting bracket.
Fig. 8 is clutch device distribution structure schematic diagram.
In figure: 1, casing 2, power shaft 3, cam 4, spacer sleeve I 5, output shaft 6, freewheel clutch 7, spacer sleeve II 8, clutch end cover 9, bell housing hub 10, protruding 11, guide rail 12, adjusting bracket 13, leading truck 14, balance staff 15, roller fork 16, bearing 17, adjusting nut cover 18, notch I 19, hole 20, roller 21, nut 22, support I 23, bearing block 24, reducing motor 25, motor supporting base 26, screw rod 27, worm screw 28, chassis 29, push rod 30, telescopic 31, stage clip 32, guide pin bushing 33, elongated slot 34, screw 35, bolt 36, proximity switch 37, support II 38, miniature slider displacement sensor 39, installing plate 40, notch II 41, worm gear 42, rotating shaft 43, axle sleeve 44, pointer 45, end cap 46, box cover 47, sunk screw 48, joint pin
Embodiment
In the embodiment shown in Fig. 1-8:
Power input device is arranged on the bottom in casing 1, comprise through the power shaft 2 of bearing horizontal support on casing 1, be fixed on three cams 3 on power shaft 2 and interval and be arranged on spacer sleeve I 4 between cam 3, wherein three cams 3 are fixed on power shaft 2 with 120 °.
Power take-off is arranged on the top in casing 1, comprise through the output shaft 5 of bearing horizontal support on casing 1, overstep clovoroom clutch 6 and four spacer sleeves II 7, wherein overstep clovoroom clutch 6 is all fixed on output shaft 5, and between adjacent freewheel clutch 6, interval is with spacer sleeve II 7; A clutch end cover 8 and a bell housing hub 9 is all established corresponding to each freewheel clutch 6, freewheel clutch 6 is positioned at clutch end cover 8 and docks with bell housing hub 9 cavity formed, corresponding to the groove on freewheel clutch 6 end face, clutch end cover 8 is provided with protruding 10, protruding 10 correspondences are inserted in groove, clutch end cover 8 is fixedly connected with bell housing hub 9 sunk screw 47, the power shaft 2 and two ends of live apart casing 1 parallel with output shaft 5, the input of power shaft 2 and the output of output shaft 5 lean out casing 1 and the both sides of casing 1 of living apart.
Transmission device comprises two guide rails 11, adjusting bracket 12, leading truck 13, three balance staffs 14 and three roller forks 15, and wherein two guide rail 11 levels are arranged on the inwall of casing 1, vertical with output shaft 5 and be positioned in same level with output shaft 5; Adjusting bracket 12 is between power shaft 2 and output shaft 5, the middle part at adjusting bracket 12 two ends is all provided with two leading trucks 13, two leading trucks 13 being positioned at same one end are lived apart the both sides of adjusting bracket 12, the lower inside of each leading truck 13 is all provided with bearing 16, and bearing 16 is supported on guide rail 11 upper surface; The middle part of adjusting bracket 12 is provided with the adjusting nut cover 17 running through adjusting bracket 12, the lower end of adjusting bracket 12 has three notches I 18, the side of adjusting bracket 12 upper end has a notch II 40, the balance staff 14 of one with holes 19 is installed in each notch I 18, balance staff 14 is arranged on the sidewall of notch I 18 through bearing, and three balance staffs 14 are positioned on same axis; In the hole 19 of each balance staff 14, all gap is through a roller fork 15, and one end that roller fork 15 is provided with roller 20 is pressed on cam 3, and the other end and the bell housing hub 9 of roller fork 15 are hinged.
Adjusting device comprises spiral shell worm screw, support I 22, be fixedly mounted on the bearing block 23 on support I 22, reducing motor 24 and motor supporting base 25, wherein spiral shell worm screw is made up of with worm screw 27 is coaxial screw rod 26, reducing motor 24 is fixedly mounted on outside casing 1 through motor supporting base 25, support I 22 level is arranged in casing 1, and be positioned at the top of power shaft 2, spiral shell worm screw is horizontal through adjusting nut cover 17, spiral shell worm screw is arranged in the bearing block 23 on support I 22 near one end of screw rod 26, spiral shell worm screw is overhanging horizontal through the bearing on casing 1 sidewall near one end of worm screw 27, spiral shell worm screw overhanging end is connected with reducing motor 24 axle.
The equal corresponding a set of fork resetting means of each cam 3, often overlap fork resetting means and include chassis 28, be vertically fixed on the push rod 29 on chassis 28, be sleeved on the telescopic 30 on push rod 29, to be sleeved on push rod 29 and the stage clip 31 be positioned at inside telescopic 30 and be secured across support I 22 and be enclosed within the guide pin bushing 32 on telescopic 30, wherein guide pin bushing 32 internal diameter is slightly larger than telescopic 30 external diameter, telescopic 30 sidewall is provided with elongated slot 33 vertically, guide pin bushing 32 is provided with screw 34, screw 34 is inserted in elongated slot 33, the lower surface on chassis 28 is pressed in roller 20 on cam 3, bolt 35 passes perpendicularly through chassis 28 and telescopic 30 from gap, lower surface, chassis 28, and be fixed on chassis 28, bolt 35 to be screwed on two nuts 21 away from the one end on chassis, certain interval is had between chassis 28 and telescopic 30 lower surface, chassis 28 and telescopic 30 upper and lower relative movement cam 3 lift in guide pin bushing 32.
Stopping means comprises two proximity switches 36 and support II 37, and its medium-height trestle II 37 level to be arranged in casing 1 and to be positioned at the top of output shaft 5, and two proximity switches 36 are arranged on support I 22 and support II 37 side towards adjusting bracket 12 respectively.
Displacement detector comprises miniature slider displacement sensor 38 and installing plate 39, wherein installing plate 39 level, gap are through the notch II 40 on adjusting bracket 12, be fixedly mounted between support I 22 and support II 37, miniature slider displacement sensor 38 is fixedly mounted on the bottom of installing plate 39, and gap is through the notch II 40 on adjusting bracket 12, on the probe secured adjusted frame 12 of miniature slider displacement sensor 38.
Spacing in the rows indicating device comprises worm gear 41, rotating shaft 42, axle sleeve 43, pointer 44 and end cap 45, its bottom bracket axle 43 passes box cover 46 and is fixed on box cover 46, box cover 46 joint pin 48 is connected with casing 1, the top of axle sleeve 43 is provided with end cap 45, the rotating shaft 42 be arranged in axle sleeve 43 through bearing runs through axle sleeve 43, and lower end is connected with worm gear 41 key, and upper gap passes end cap 45, pointer 44 level is arranged on the top of rotating shaft 42, and worm gear 41 coordinates with spiral shell worm screw.
Claims (3)
1. the automatically controlled spacing in the rows mechanical stepless adjuster of sower, it is characterized in that: comprise casing (1) and be arranged on the inner power input device of casing (1), power take-off, transmission device, adjusting device, many cover fork resetting means, stopping means, displacement detector, spacing in the rows indicating device, wherein:
Power input device is arranged on the bottom in casing (1), comprises through the power shaft (2) of bearing horizontal support on casing (1), is fixed on multiple cams (3) on power shaft (2) and interval and is arranged on spacer sleeve I (4) between cam (3);
Power take-off is arranged on the top in casing (1), comprise through the output shaft (5) of bearing horizontal support on casing (1), with freewheel clutch (6) and multiple spacer sleeve II (7) of the quantity such as cam (3), wherein multiple freewheel clutch (6) is all fixed on output shaft (5), between adjacent freewheel clutch (6), interval is with spacer sleeve II (7), a clutch end cover (8) and a bell housing hub (9) is all established corresponding to each freewheel clutch (6), freewheel clutch (6) is positioned at clutch end cover (8) and docks with bell housing hub (9) cavity formed, corresponding to the groove on freewheel clutch (6) end face, clutch end cover (8) is provided with projection (10), protruding (10) correspondence is inserted in groove, clutch end cover (8) is fixedly connected with bell housing hub (9) sunk screw (47), power shaft (2) is parallel with output shaft (5), and the two ends of separation casing (1), the input of power shaft (2) and the output of output shaft (5) lean out casing (1), and the both sides of separation casing (1),
Transmission device comprise two guide rails (11), adjusting bracket (12), leading truck (13), with the many balance staffs (14) of the quantity such as cam (3) and many roller forks (15), wherein two guide rail (11) levels are arranged on the inwall of casing (1), vertical with output shaft (5) and be positioned in same level with output shaft (5); Adjusting bracket (12) is positioned between power shaft (2) and output shaft (5), the middle part at adjusting bracket (12) two ends is all provided with two leading trucks (13), be positioned at the both sides of two leading trucks (13) separation adjusting bracket (12) of same one end, the lower inside of each leading truck (13) is all provided with bearing (16), and bearing (16) is supported on guide rail (11) upper surface; The middle part of adjusting bracket (12) is provided with the adjusting nut cover (17) running through adjusting bracket (12), the lower end of adjusting bracket (12) has the multiple identical notch I (18) with quantity such as cams (3), the side of adjusting bracket (12) upper end has a notch II (40), the balance staff (14) of one (19) with holes is installed in each notch I (18), balance staff (14) is arranged on the sidewall of notch I (18) through bearing, and multiple balance staff (14) is positioned on same axis; In the hole (19) of each balance staff (14), all a roller fork (15) is passed in gap, one end that roller fork (15) is provided with roller (20) is pressed on cam (3), and the other end and the bell housing hub (9) of roller fork (15) are hinged;
Adjusting device comprises spiral shell worm screw, support I (22), be fixedly mounted on the bearing block (23) on support I (22), reducing motor (24) and motor supporting base (25), wherein spiral shell worm screw is made up of with worm screw (27) is coaxial screw rod (26), reducing motor (24) is fixedly mounted on casing (1) outside through motor supporting base (25), support I (22) level is arranged in casing (1), and be positioned at the top of power shaft (2), spiral shell worm screw is horizontal through adjusting nut cover (17), spiral shell worm screw is arranged in the bearing block (23) on support I (22) near one end of screw rod (26), spiral shell worm screw is overhanging horizontal through the bearing on casing (1) sidewall near one end of worm screw (27), spiral shell worm screw overhanging end is connected with reducing motor (24) axle,
The equal corresponding a set of fork resetting means of each cam (3), often overlap fork resetting means and include chassis (28), be vertically fixed on the push rod (29) on chassis (28), be sleeved on the telescopic (30) on push rod (29), be sleeved on push rod (29) go up and be positioned at the stage clip (31) of telescopic (30) inner side and be secured across support I (22) and be enclosed within the guide pin bushing (32) on telescopic (30), wherein guide pin bushing (32) internal diameter is slightly larger than telescopic (30) external diameter, telescopic (30) sidewall is provided with elongated slot (33) vertically, guide pin bushing (32) is provided with screw (34), screw (34) is inserted in elongated slot (33), the lower surface on chassis (28) is pressed in roller (20) on cam (3), bolt (35) passes perpendicularly through chassis (28) and telescopic (30) from chassis (28) gap, lower surface, and be fixed on chassis (28), bolt (35) to be screwed on two nuts (21) away from the one end on chassis, certain interval is had between chassis (28) and telescopic (30) lower surface, chassis (28) and telescopic (30) upper and lower relative movement cam (3) lift in guide pin bushing (32),
Stopping means comprises two proximity switches (36) and support II (37), its medium-height trestle II (37) level to be arranged in casing (1) and to be positioned at the top of output shaft (5), and two proximity switches (36) are arranged on support I (22) and support II (37) side towards adjusting bracket (12) respectively;
Displacement detector comprises miniature slider displacement sensor (38) and installing plate (39), wherein installing plate (39) level, gap are through the notch II (40) on adjusting bracket (12), be fixedly mounted between support I (22) and support II (37), miniature slider displacement sensor (38) is fixedly mounted on the bottom of installing plate (39), and gap is through the notch II (40) on adjusting bracket (12), on the probe secured adjusted frame (12) of miniature slider displacement sensor (38);
Spacing in the rows indicating device comprises worm gear (41), rotating shaft (42), axle sleeve (43), pointer (44) and end cap (45), its bottom bracket axle (43) is through box cover (46) and be fixed on box cover (46), box cover (46) joint pin (48) is connected with casing (1), the top of axle sleeve (43) is provided with end cap (45), the rotating shaft (42) be arranged in axle sleeve (43) through bearing runs through axle sleeve (43), lower end is connected with worm gear (41) key, upper gap passes end cap (45), pointer (44) level is arranged on the top of rotating shaft (42), worm gear (41) coordinates with spiral shell worm screw.
2. the automatically controlled spacing in the rows mechanical stepless adjuster of sower as claimed in claim 1, is characterized in that: cam (3) adopts three, and three cams (3) are fixed on power shaft (2) with 120 °.
3. the automatically controlled spacing in the rows mechanical stepless adjuster of sower as claimed in claim 1, is characterized in that: cam (3) adopts four, and four cams (3) are fixed on power shaft (2) with 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310125953.6A CN103190229B (en) | 2013-04-12 | 2013-04-12 | Electric-control mechanical stepless row spacing regulator for seeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310125953.6A CN103190229B (en) | 2013-04-12 | 2013-04-12 | Electric-control mechanical stepless row spacing regulator for seeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103190229A CN103190229A (en) | 2013-07-10 |
| CN103190229B true CN103190229B (en) | 2015-01-28 |
Family
ID=48713199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310125953.6A Expired - Fee Related CN103190229B (en) | 2013-04-12 | 2013-04-12 | Electric-control mechanical stepless row spacing regulator for seeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103190229B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2537212Y (en) * | 2002-05-13 | 2003-02-26 | 吴永忠 | Walking type electric control dripping irrigation device |
| CN100544577C (en) * | 2007-03-23 | 2009-09-30 | 张咏麦 | Tilling and seeding machine |
| CN201563368U (en) * | 2009-09-28 | 2010-09-01 | 安徽鲁班集团神牛机械有限公司 | Manual seeding quantity adjustor of paddy planter |
| CN201601969U (en) * | 2009-12-31 | 2010-10-13 | 黄海宸 | Row spacing adjuster of seeding machine |
-
2013
- 2013-04-12 CN CN201310125953.6A patent/CN103190229B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN103190229A (en) | 2013-07-10 |
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Granted publication date: 20150128 Termination date: 20170412 |