CN202738384U - Rotary cultivator - Google Patents
Rotary cultivator Download PDFInfo
- Publication number
- CN202738384U CN202738384U CN 201220340710 CN201220340710U CN202738384U CN 202738384 U CN202738384 U CN 202738384U CN 201220340710 CN201220340710 CN 201220340710 CN 201220340710 U CN201220340710 U CN 201220340710U CN 202738384 U CN202738384 U CN 202738384U
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- cutterhead
- assembly
- rotary blade
- cutterhead assembly
- ridging
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Abstract
The utility model provides a rotary cultivator integrated with stubble cleaning, deep scarifying, hacking and ridging. The rotary cultivator consists of a suspension bracket, a frame, a front rotary blade assembly, a rear rotary blade assembly, a deep scarification ploughshare, a ridging ploughshare and a transmission device. The rotary cultivator has the beneficial effects that a composite operation structure design of stubble cleaning, deep scarifying, hacking and ridging in rotary cultivation is adopted in the rotary cultivator, helical angles of the two rotary blade assembles are different, the blades on the front and rear rotary blade assemblies are lengthened, and edge parts of the blade are of a cambered structure design, so that the blade can be scarified into soil deeply, and cut on a proper position in stubble cleaning to crush root stubbles and completely clean stubbles; the blades have small resistance in scarification, strips or blocks are prevented in rotary cultivation, and accumulation caused by dragging is prevented, so that the soil is flat like sponge, and effects in soil moisture preservation, water storage and fertilizer preservation are good, and the seedling emergence is orderly.
Description
Technical field
The utility model relates to agricultural mechanical field, especially a kind ofly collects the rotovator that stubble-cleaning, subsoiling, hack and ridging are a machine.
Background technology
Present employed rotovator only reaches stubble-cleaning and two kinds of operation purposes of rotary tillage, and the helical angle of two rotary blade assembly is identical, stubble-cleaning and Rotary tillage blade are shorter, and blade is a rectangle, and point of a knife is the right angle, thereby the blade embedded depth is shallow, the darker blade of high its root of a crop of chance is cut not in place, and it is large to leave crops for rotation, and stubble-cleaning is not thorough, point of a knife is the right angle, do not have penetrating angle, soil-entering resistance is large, the rotary tillage depth as shallow, easily play stick, make the soil out-of-flatness, make it soil moisture conservation, water storage is poor, fertilizer is difficult for the performance fertilizer efficiency, it is irregular to emerge, and does not reach the sowing requirement.
Summary of the invention
In order to overcome existing deficiency, the utility model provides a kind of rotovator, and this rotovator not only can stubble-cleaning, rotary tillage, and reach can stubble-cleaning, rotary tillage, again can subsoiling and the purpose of ridging.
Originally be that utility model is to solve the problem that prior art exists, the technical scheme of taking is, by hanger bracket, framework, front rotary blade assembly, rear rotary blade assembly, Deep digging plowshare, ridging ploughshare, transmission device forms, cutter shaft right-hand member in the front rotary blade assembly and the gear shaft flange in the front gear box are fixed, bearing fit in the bearing block on cutter shaft left end in the front rotary blade assembly and the left side installation steel plate, cutter shaft left end in the rear rotary blade assembly and the gear shaft flange in the rear gear box are fixed, bearing fit in the bearing block on cutter shaft right-hand member in the rear rotary blade assembly and the right side installation steel plate, transmission device is by transmission case, two universal drive shafts, two gear-boxes form, transmission case in transmission case and the framework fixedly channel-section steel fitted bolt is fixed, two gear-boxes respectively with framework in installation steel plate fitted bolt fix, the universal joint at two universal drive shaft two ends respectively with transmission case on power take-off and the gear shaft in two gear-boxes cooperate, three Deep digging plowshare holders cooperate U bolt to fix with central sill and girder respectively, subsoiling bar chi in three Deep digging plowshares cooperates respectively the jackscrew top solid with the Deep digging plowshare holder, four ridging ploughshare holders respectively with framework in beam cooperate solid welding, bar chi in four ridging ploughshares cooperates the jackscrew top solid with four ridging ploughshare holders, transmission case in the framework fixedly has hanger bracket on the channel-section steel, breast boards is fixed with front-axle beam and back rest fitted bolt respectively, wherein, its structure of wing plate on three subsoiling bar chis is identical, take one as example, the wing plate leaning angle is 20 degree, wing plate and ground angle are 23 degree, front rotary blade assembly is identical with rear rotary blade assembly mounting process, helical angle is different, the rotary blade assembly is example before its mounting process, 16 cutterhead assemblies in the front rotary blade assembly axially by the right side to left, cutterhead assembly (A), cutterhead assembly (C), cutterhead assembly (E), cutterhead assembly (G), cutterhead assembly (I), cutterhead assembly (K), cutterhead assembly (M), cutterhead assembly (O) setting angle is identical; (" axially by the right side to left " increases) cutterhead assembly (B), cutterhead assembly (D), cutterhead assembly (F), cutterhead assembly (H), cutterhead assembly (J), cutterhead assembly (L), cutterhead assembly (N), cutterhead assembly (P) setting angle is identical, take cutterhead assembly (A) and cutterhead assembly (B) as example, cutterhead assembly (B) relatively cutterhead assembly (A) rotation 45 degree cooperates, identical blade in 16 cutterhead assemblies, arrange by four helixes, its phase angle is 90 degree, the helical angle of every helix is 45 degree, identical centre bore on the cutterhead in 16 cutterhead assemblies cooperates with cutter shaft external diameter key, 18 cutterhead assemblies in the rear rotary blade assembly, axially identical with front rotary blade assembly by left-to-right mounting process, cutterhead assembly (A) and cutterhead assembly (B) on the rotary blade assembly is example later on, cutterhead assembly (B) relatively cutterhead assembly (A) rotation 22 five degree cooperates, in 18 cutterhead assemblies with cutterhead assembly (A) on blade and the identical blade on the cutterhead assembly (B), arrange by four helixes, its phase angle is 90 degree, the helical angle of every helix is 22 five degree, cooperating with cutter shaft external diameter key with centre bore on the cutterhead in 18 cutterhead assemblies, described framework is by front-axle beam, central sill, the back rest, girder, beam, transmission case is channel-section steel fixedly, connect square steel, the left side connecting plate, the right side connecting plate, steel plate is installed in the left side and the steel plate composition is installed on the right side, left side connecting plate and right side connecting plate cooperate solid welding with front-axle beam and central sill, connect between square steel and central sill and the back rest and cooperate solid welding, girder cooperates solid welding with central sill, beam is comprised of two Changshun beams and two short beams, two Changshun beams and two short beam intervals, one end cooperates U bolt to fix with the back rest, the other end has ridging ploughshare holder transmission case fixedly to cooperate solid welding with front-axle beam and central sill in the channel-section steel two ends, the structure mounting process of the cutterhead assembly in described front rotary blade assembly and the rear rotary blade assembly is identical, a cutterhead assembly in the rotary blade assembly was example in the past, by handle of a knife, blade and cutterhead form, wherein blade and handle of a knife are integrated, four handle of a knifes and fix with the cutterhead fitted bolt, described four Deep digging plowshare structures are identical, take one as example, formed by subsoiling bar chi and wing plate, the wing plate base is parallel with subsoiling bar chi tip, and two blocks of wing plates cooperate solid welding with subsoiling bar chi tip.
Originally the beneficial effect that is utility model is, this rotovator has been taked the retrial operation structure design of rotary tillage stubble-cleaning, subsoiling, rotary tillage hack and ridging, the helical angle of two rotary blade assemblies is different, lengthened the blade on front rotary blade assembly and the rear rotary blade assembly, its blade tip is circular-arc structural design, thereby its blade buries deeply, blade can switch to the position during stubble-cleaning, and the root stubble becomes broken shape, and stubble-cleaning is thorough, the blade soil-entering resistance is little, rotary tillage has been difficult for stick, does not drag heap, makes the soil become spongy smooth, soil moisture conservation, water storage, fertilizer conservation are effective, and it is neat to emerge.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified,
Fig. 1 is the utility model structural front view;
Fig. 2 is the vertical view of the utility model Fig. 1;
Fig. 3 is the left view of the utility model Fig. 1;
Fig. 4 is rotary blade assembly mounting structure figure before the utility model;
Fig. 5 is the A cutterhead setting angle figure of the utility model Fig. 4;
Fig. 6 is the B cutterhead setting angle figure of the utility model Fig. 4;
Fig. 7 is rotary blade assembly mounting structure figure behind the utility model;
Fig. 8 is the A cutterhead setting angle figure of the utility model Fig. 7;
Fig. 9 is the B cutterhead setting angle figure of the utility model Fig. 7;
Figure 10 is the utility model Deep digging plowshare structural front view;
Figure 11 is the left view of the utility model Figure 11.
Embodiment
Embodiment of the present utility model is, with reference to Fig. 1, Fig. 2, Fig. 3, by hanger bracket, framework, front rotary blade assembly, rear rotary blade assembly, Deep digging plowshare, ridging ploughshare, transmission device and breast boards form, with reference to Fig. 1, Fig. 4, cutter shaft 24 right-hand members in the front rotary blade assembly and gear shaft 22 flange 23 in the front gear box 20 are fixed, bearing fit in the bearing block 29 on cutter shaft 24 left ends in the front rotary blade assembly and the left side installation steel plate 30, with reference to Fig. 3, Fig. 7, cutter shaft 72 left ends in the rear rotary blade assembly and the gear shaft flange in the rear gear box 33 are fixed, bearing fit in the bearing block on cutter shaft 72 right-hand members in the rear rotary blade assembly and the right side installation steel plate 21, with reference to Fig. 1, Fig. 2, Fig. 3, transmission device is by transmission case 11, two universal drive shafts 3,16, two gear- boxes 20,33 form, transmission case in transmission case 11 and the framework is channel-section steel 48 fixedly, 49 fitted bolts are fixed, two gear- boxes 20,33 respectively with framework in installation steel plate 21,30 fitted bolts are fixed, two universal drive shafts 3, the universal joint at 16 two ends respectively with transmission case 11 on power take-off 8,12 and two gear-boxes 20, gear shaft 1 in 33,18 cooperate, with reference to Fig. 1, Fig. 2, Fig. 3, Fig. 6, three Deep digging plowshare holders 5,7,15 cooperate U bolt to fix with central sill 46 and girder 28 respectively, subsoiling bar chi 4 in three Deep digging plowshares, 9,14 respectively with Deep digging plowshare holder 5,7,15 cooperate the jackscrew top solid, four ridging ploughshare holders 36,37,40,42 respectively with framework in beam 74,38,41,43 cooperate solid welding, bar chi 2 in four ridging ploughshares, 6,13,17 and four ridging ploughshare holders 36,37,40,42 cooperate the jackscrew top solid, transmission case in the framework is channel-section steel 48 fixedly, hanger bracket 10 is arranged on 49, breast boards 35,47,77,50 fix with front-axle beam 32 and the back rest 44 fitted bolts respectively, wherein, four subsoiling bar chis 4,9, its structure of wing plate on 14 is identical, take one as example, with reference to Figure 10, Figure 11, wing plate 75,76 leaning angles are 20 degree, wing plate 75,76 with the ground angle be 23 the degree, with reference to Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, front rotary blade assembly is identical with rear rotary blade assembly mounting process, helical angle is different, the rotary blade assembly is example before its mounting process, with reference to Fig. 4,16 cutterhead assemblies in the front rotary blade assembly axially by the right side to left cutterhead assembly A, cutterhead assembly C, cutterhead assembly E, cutterhead assembly G, cutterhead assembly I, cutterhead assembly K, cutterhead assembly M, cutterhead assembly O setting angle is identical; (" axially by the right side to left " increases) cutterhead assembly B, cutterhead assembly D, cutterhead assembly F, cutterhead assembly H, cutterhead assembly J, cutterhead assembly L, cutterhead assembly N, cutterhead assembly P setting angle is identical, with reference to Fig. 5, Fig. 6, take cutterhead assembly A and cutterhead assembly B as example, the relative cutterhead assembly of cutterhead assembly B A rotates 45 degree and cooperates, in 16 cutterhead assemblies with cutterhead assembly A on blade 26,52,53,54 and cutterhead assembly B on blade 55,56,57,58 identical blades, arrange by four helixes, its phase angle is 90 degree, the helical angle of every helix is 45 degree, in 16 cutterhead assemblies with cutterhead 25, on the 59 identical cutterheads, with centre bore 51,60 identical centre bores cooperate with cutter shaft 24 external diameter keys, with reference to Fig. 7,18 cutterhead assemblies in the rear rotary blade assembly, axially identical with front rotary blade assembly by left-to-right mounting process, with reference to Fig. 8, Fig. 9, cutterhead assembly A and cutterhead assembly B on the rotary blade assembly is example later on, the relative cutterhead assembly of cutterhead assembly B A rotates 22 five degree and cooperates, in 18 cutterhead assemblies with the cutterhead assembly on blade 61,62,63,64 and cutterhead assembly B on blade 67,68,69,70 identical blades, arrange by four helixes, its phase angle is 90 degree, the helical angle of every helix is 22 five degree, in 18 cutterhead assemblies with cutterhead 65, on the 71 identical cutterheads, with centre bore 66,72 identical centre bores cooperate with cutter shaft 73 external diameter keys, with reference to Fig. 1, Fig. 2, Fig. 3, described framework is by front-axle beam 32, central sill 46, the back rest 44, girder 28, beam 74,38,41,43, transmission case is channel-section steel 48 fixedly, 49, connect square steel 34,39,45, left side connecting plate 31, right side connecting plate 19, steel plate 30 is installed in the left side and steel plate 21 compositions are installed on the right side, left side connecting plate 31 and right side connecting plate 19 cooperate solid welding with front-axle beam 32 and central sill 46, connect square steel 34,39,45 cooperate solid welding with central sill 46 and 44 on the back rest, girder 28 cooperates solid welding with central sill 46, beam is by two Changshun beams 74,41 and two short beams 38,43 form, two Changshun beams 74,41 and two short beams 38,43 intervals, one end cooperates U bolt to fix with the back rest 44, the other end has ridging ploughshare holder 36,37,40,42, transmission case is channel-section steel 48 fixedly, 49 two ends cooperate solid welding with front-axle beam 32 and central sill 46, with reference to Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, the structure mounting process of the cutterhead assembly in described front rotary blade assembly and the rear rotary blade assembly is identical, a cutterhead assembly in the rotary blade assembly was example in the past, by handle of a knife 27, blade 26,52,53,54 and cutterhead 25 form, wherein blade 26,52,53,54 four handle of a knifes identical with handle of a knife 27 are integrated, identical with handle of a knife 27 four handle of a knifes and fix with cutterhead 25 fitted bolts, with reference to Figure 10, Figure 11, described four Deep digging plowshare structures are identical, take one as example, by subsoiling bar chi 4 and wing plate 75,76 form, wing plate 75,76 bases are parallel with subsoiling bar chi 4 tips, two blocks of wing plates 75,76 cooperate solid welding with subsoiling bar chi 4 tips, with reference to Fig. 1, Fig. 2, Fig. 3, its operation principle is, locomotive is passed to transmission case 11 with power, two universal drive shafts 3 through transmission case 11 both sides, 16, pass to respectively two gear- boxes 20,33, front rotary blade assembly and rear rotary blade assembly rotate simultaneously, this machine of locomotive traction moves ahead, at this moment the stubble-cleaning that buries of the blade on the front rotary blade assembly, while Deep digging plowshare subsoiling, blade on the rear rotary blade assembly bury soil is revolved broken, leveling is again through the ridging ploughshare ridging.
Claims (4)
1. one kind collects stubble-cleaning, subsoiling, hack and ridging are the rotovator of a machine, by hanger bracket, framework, front rotary blade assembly, rear rotary blade assembly, Deep digging plowshare, ridging ploughshare, transmission device forms, cutter shaft right-hand member in the front rotary blade assembly and the gear shaft flange in the front gear box are fixed, bearing fit in the bearing block on cutter shaft left end in the front rotary blade assembly and the left side installation steel plate, cutter shaft left end in the rear rotary blade assembly and the gear shaft flange in the rear gear box are fixed, bearing fit in the bearing block on cutter shaft right-hand member in the rear rotary blade assembly and the right side installation steel plate, transmission device is by transmission case, two universal drive shafts, two gear-boxes form, transmission case in transmission case and the framework fixedly channel-section steel fitted bolt is fixed, two gear-boxes respectively with framework in installation steel plate fitted bolt fix, the universal joint at two universal drive shaft two ends respectively with transmission case on power take-off and the gear shaft in two gear-boxes cooperate, three Deep digging plowshare holders cooperate U bolt to fix with central sill and girder respectively, subsoiling bar chi in three Deep digging plowshares cooperates respectively the jackscrew top solid with the Deep digging plowshare holder, four ridging ploughshare holders respectively with framework in beam cooperate solid welding, bar chi in four ridging ploughshares cooperates the jackscrew top solid with four ridging ploughshare holders, transmission case in the framework fixedly has hanger bracket on the channel-section steel, breast boards is fixed with front-axle beam and back rest fitted bolt respectively, wherein, its structure of wing plate on three subsoiling bar chis is identical, take one as example, the wing plate leaning angle is 20 degree, wing plate and ground angle are 23 degree, front rotary blade assembly is identical with rear rotary blade assembly mounting process, helical angle is different, the rotary blade assembly is example before its mounting process, 16 cutterhead assemblies in the front rotary blade assembly axially by the right side to left, cutterhead assembly (A), cutterhead assembly (C), cutterhead assembly (E), cutterhead assembly (G), cutterhead assembly (I), cutterhead assembly (K), cutterhead assembly (M), cutterhead assembly (O) setting angle is identical; Axially by the right side to left cutterhead assembly (B), cutterhead assembly (D), cutterhead assembly (F), cutterhead assembly (H), cutterhead assembly (J), cutterhead assembly (L), cutterhead assembly (N), cutterhead assembly (P) setting angle is identical, take cutterhead assembly (A) and cutterhead assembly (B) as example, cutterhead assembly (B) relatively cutterhead assembly (A) rotation 45 degree cooperates, identical blade in 16 cutterhead assemblies, arrange by four helixes, its phase angle is 90 degree, the helical angle of every helix is 45 degree, identical centre bore on the cutterhead in 16 cutterhead assemblies cooperates with cutter shaft external diameter key, 18 cutterhead assemblies in the rear rotary blade assembly, axially identical with front rotary blade assembly by left-to-right mounting process, cutterhead assembly (A) and cutterhead assembly (B) on the rotary blade assembly is example later on, cutterhead assembly (B) relatively cutterhead assembly (A) rotation 22 five degree cooperates, in 18 cutterhead assemblies with cutterhead assembly (A) on blade and the identical blade on the cutterhead assembly (B), arrange by four helixes, its phase angle is 90 degree, the helical angle of every helix is 22 five degree, cooperating with cutter shaft external diameter key with centre bore on the cutterhead in 18 cutterhead assemblies.
2. a kind of collection stubble-cleaning according to claim 1, subsoiling, hack and ridging are the rotovator of a machine, it is characterized in that: described framework is by front-axle beam, central sill, the back rest, girder, beam, transmission case is channel-section steel fixedly, connect square steel, the left side connecting plate, the right side connecting plate, steel plate is installed in the left side and the steel plate composition is installed on the right side, left side connecting plate and right side connecting plate cooperate solid welding with front-axle beam and central sill, connect between square steel and central sill and the back rest and cooperate solid welding, girder cooperates solid welding with central sill, beam is comprised of two Changshun beams and two short beams, two Changshun beams and two short beam intervals, one end cooperates U bolt to fix with the back rest, and the other end has ridging ploughshare holder transmission case fixedly to cooperate solid welding with front-axle beam and central sill in the channel-section steel two ends.
3. a kind of rotovator that stubble-cleaning, subsoiling, hack and ridging are a machine that collects according to claim 1, it is characterized in that: described cutterhead assembly, be comprised of handle of a knife, blade and cutterhead, wherein blade and handle of a knife are integrated, four handle of a knifes and fix with the cutterhead fitted bolt.
4. a kind of rotovator that stubble-cleaning, subsoiling, hack and ridging are a machine that collects according to claim 1, it is characterized in that: described Deep digging plowshare is comprised of subsoiling bar chi and wing plate, the wing plate base is parallel with subsoiling bar chi tip, and two blocks of wing plates cooperate solid welding with subsoiling bar chi tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220340710 CN202738384U (en) | 2012-07-13 | 2012-07-13 | Rotary cultivator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220340710 CN202738384U (en) | 2012-07-13 | 2012-07-13 | Rotary cultivator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202738384U true CN202738384U (en) | 2013-02-20 |
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ID=47697852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220340710 Expired - Fee Related CN202738384U (en) | 2012-07-13 | 2012-07-13 | Rotary cultivator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202738384U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104285523A (en) * | 2014-11-07 | 2015-01-21 | 义乌市开晶进出口有限公司 | Land leveling device with mowing function |
| CN104335721A (en) * | 2014-11-07 | 2015-02-11 | 王启先 | Land leveling device for driving circular drive disc by worm gear |
| CN104335722A (en) * | 2014-11-07 | 2015-02-11 | 王启先 | Land leveling device containing limiting sleeve |
| CN104396372A (en) * | 2014-11-07 | 2015-03-11 | 义乌市源德进出口有限公司 | Land levelling device provided with spraying device |
| CN104429184A (en) * | 2014-11-07 | 2015-03-25 | 宁波江东康圣机械科技有限公司 | Land leveling device capable of loosening soil |
| CN104429185A (en) * | 2014-11-07 | 2015-03-25 | 嵊州市百恩贸易有限公司 | Method for leveling land by means of land leveling device control system |
| CN104472033A (en) * | 2014-11-07 | 2015-04-01 | 钱国臣 | Land leveling device with buffering block |
| CN106068707A (en) * | 2016-08-20 | 2016-11-09 | 张海琦 | A kind of suspension type machine for burying grapevine |
| CN109757141A (en) * | 2019-01-29 | 2019-05-17 | 安徽农业大学 | Machine is broadcast suitable for rice stubble field non-ploughing rotary tillage ditching is even |
-
2012
- 2012-07-13 CN CN 201220340710 patent/CN202738384U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104285523A (en) * | 2014-11-07 | 2015-01-21 | 义乌市开晶进出口有限公司 | Land leveling device with mowing function |
| CN104335721A (en) * | 2014-11-07 | 2015-02-11 | 王启先 | Land leveling device for driving circular drive disc by worm gear |
| CN104335722A (en) * | 2014-11-07 | 2015-02-11 | 王启先 | Land leveling device containing limiting sleeve |
| CN104396372A (en) * | 2014-11-07 | 2015-03-11 | 义乌市源德进出口有限公司 | Land levelling device provided with spraying device |
| CN104429184A (en) * | 2014-11-07 | 2015-03-25 | 宁波江东康圣机械科技有限公司 | Land leveling device capable of loosening soil |
| CN104429185A (en) * | 2014-11-07 | 2015-03-25 | 嵊州市百恩贸易有限公司 | Method for leveling land by means of land leveling device control system |
| CN104472033A (en) * | 2014-11-07 | 2015-04-01 | 钱国臣 | Land leveling device with buffering block |
| CN104429184B (en) * | 2014-11-07 | 2015-12-02 | 北京立丰信种苗有限公司 | A kind of land readjustment device loosened the soil |
| CN104335721B (en) * | 2014-11-07 | 2016-03-23 | 阴丽华 | A kind of land readjustment device being driven circular drives dish by worm and gear |
| CN104429185B (en) * | 2014-11-07 | 2016-08-24 | 广州中茂园林建设工程有限公司 | A kind of method utilizing prepartion of land apparatus control system to level land |
| CN104285523B (en) * | 2014-11-07 | 2016-09-28 | 湖南省金峰机械科技有限公司 | A kind of prepartion of land device mowed |
| CN106068707A (en) * | 2016-08-20 | 2016-11-09 | 张海琦 | A kind of suspension type machine for burying grapevine |
| CN109757141A (en) * | 2019-01-29 | 2019-05-17 | 安徽农业大学 | Machine is broadcast suitable for rice stubble field non-ploughing rotary tillage ditching is even |
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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: 20130220 Termination date: 20140713 |
|
| EXPY | Termination of patent right or utility model |