CN108684261B - Rotary disk type rape precise seed metering device - Google Patents
Rotary disk type rape precise seed metering device Download PDFInfo
- Publication number
- CN108684261B CN108684261B CN201810260810.9A CN201810260810A CN108684261B CN 108684261 B CN108684261 B CN 108684261B CN 201810260810 A CN201810260810 A CN 201810260810A CN 108684261 B CN108684261 B CN 108684261B
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- lower cover
- seed feeding
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- 244000188595 Brassica sinapistrum Species 0.000 claims description 13
- 235000004977 Brassica sinapistrum Nutrition 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 8
- 235000011293 Brassica napus Nutrition 0.000 claims description 4
- 240000002791 Brassica napus Species 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims 1
- 238000010899 nucleation Methods 0.000 abstract description 9
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 238000009331 sowing Methods 0.000 description 22
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 7
- 241000721671 Ludwigia Species 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000002054 transplantation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/18—Machines for depositing quantities of seed at intervals
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/20—Parts of seeders for conducting and depositing seed
Abstract
The invention discloses a rotary disc type rape precise seed metering device which comprises an upper cover, a lower cover, a seed feeding sleeve, a rotary disc, a spiral seed feeding strip and a main shaft, wherein the lower cover is connected with the upper cover in a involution mode, the seed feeding sleeve is arranged at the middle part of the upper surface of the upper cover, the rotary disc is arranged in a cavity formed by involution of the upper cover and the lower cover, the spiral seed feeding strip is inserted into the cavity of the seed feeding sleeve and is in clearance fit with the cavity, the main shaft penetrates through the lower cover and the rotary disc from bottom to top in sequence, the main shaft is inserted into the spiral seed feeding strip from bottom to top, and the bottom of the spiral seed feeding strip penetrates through a through hole of the upper cover until the bottom of the spiral seed feeding strip is abutted against the middle part of the rotary disc. The combined design of the spiral seed feeding strip and the rotating disc with the guide vanes is adopted, so that the arching phenomenon is prevented, meanwhile, the seeding links are reduced, the phenomena of breakage, blockage and the like are effectively reduced, the precise seed feeding amount adjustment can be realized, the consistency of each row of displacement is ensured, and the mechanized seeding level is improved.
Description
Technical Field
The invention relates to the technical field of sowing of agricultural machinery, in particular to a precise seed metering device for rotary disc type rape.
Background
The mechanized sowing of rape is a key link in agricultural production, and the sowing quality of the rape obviously influences the growth quality and yield of crops. The existing rape planting modes are divided into three modes of artificial broadcasting, seedling transplanting and mechanical direct seeding. The manual sowing mode can cause seed waste, and the plant distribution is uneven to influence the plant growth vigor, the yield reduction and other problems; the manual demand of seedling transplantation is large, the labor intensity is high, the production efficiency is low, and the stable development of the rape industry is severely restricted; the main core component of the mechanized direct seeding is the seed sowing device. The traditional precise seed sowing device belongs to a single-row type, and has the problems of huge structure, high cost and the like although the precise sowing is easy to realize; the structure of the centralized seed sowing device is highly simplified and centralized, so that the structure of the whole machine is compact, high-speed and wide-range operation is easy to realize, and the seed sowing efficiency is improved in multiple. The centrifugal seed metering device in the seed collector only applies acting force to seeds by virtue of centrifugal force to finish the sowing process, which has important practical significance for the development of the sowing machine. There are still some difficulties: if mechanical sowing still causes the phenomenon of high breakage rate of seeds, precise control on the seed feeding amount is difficult to realize, and the phenomenon of arching or overlarge seed feeding amount is caused.
Disclosure of Invention
The invention aims to overcome the defects of the technology, and provides a rotary disk type rape precise seed metering device which can realize precise seed feeding adjustment, prevent arching, effectively reduce damage and blockage phenomena and has better consistency of each row of displacement.
The invention provides a rotating disc type rape precise seed metering device which is designed for achieving the purpose, and comprises an upper cover, a lower cover, a seed feeding sleeve, a rotating disc, a spiral seed feeding strip and a main shaft, wherein the lower cover is connected with the upper cover in a involution manner, the seed feeding sleeve is arranged at the middle part of the upper surface of the upper cover, the rotating disc is arranged in a cavity formed by involution of the upper cover and the lower cover, the spiral seed feeding strip is inserted into the cavity of the seed feeding sleeve and is in clearance fit with the cavity, the main shaft is screwed into the spiral seed feeding strip from bottom to top through the lower cover, and the bottom of the spiral seed feeding strip passes through a through hole of the upper cover until the bottom of the spiral seed feeding strip is propped against the middle part of the rotating disc; the spiral seed feeding strip comprises a hollow cylindrical body, spiral blades and an arch breaking cone, wherein the spiral blades are spirally arranged along the outer periphery of the hollow cylindrical body, the arch breaking cone is arranged at the top end of the hollow cylindrical body, the spiral angle of the spiral blades is larger than the natural sliding friction angle of rapeseed grains, and the inclination angle of the arch breaking cone is 55-65 degrees; the rotary disk comprises a rotary disk body with a central through hole, and Archimedes spiral linear guide vanes uniformly arranged on the rotary disk body along the circumferential direction.
Further, the rotary disk body comprises a regular conical rotary disk body and a circle of circular ring arranged at the edge of the regular conical rotary disk body; the height of the Archimedes spiral linear guide vane is 8-10 mm, the position of the Archimedes spiral linear guide vane starting point is 30-35 mm away from the center of the rotating disc, and the Archimedes spiral linear guide vane end point plane and the outermost edge of the rotating disc body are positioned on the same plane and are in clearance fit with the inner wall of the lower cover.
Further, the rotary disk body is a hollow rotary disk body, a boss is arranged in a hollow inner cavity of the rotary disk body, and the boss is matched with the hub of the inner cavity of the lower cover.
Further, the lower cover comprises a lower cover body, a base arranged on the lower bottom surface of the lower cover body and a plurality of seed outlets uniformly arranged on the edge of the lower cover body along the circumferential direction; the seed outlets are communicated with the cavity, and the inner wall of the lower edge of each seed outlet is leveled with the lower bottom surface of the rotary disk; the seed guiding cavity of the seed outlet comprises a rectangular frame, a round frame and a transition curved surface for connecting the rectangular frame and the round frame, wherein the curvature of the transition curved surface is larger than the natural repose angle of the rape seeds, and the lower edge of the seed outlet is rounded.
Further, the lower cover body is uniformly provided with clamping grooves with the same number as the seed outlets along the circumferential direction, and the seed outlets are in one-to-one corresponding embedded connection with the clamping grooves; the inner edge of each clamping groove is rounded; the lower cover base is uniformly distributed with a plurality of reinforcing ribs along the circumferential direction.
Further, the inner wall of the hollow cylindrical body is provided with an internal thread matched with the external thread of the main shaft, the inner wall of the central through hole is provided with a key slot matched with a key on the main shaft, and the inner diameter of the hollow cylindrical body is the same as the inner diameter of the central through hole.
Further, the seed feeding sleeve comprises a hollow cylinder and a seed feeding port formed at the top end of the hollow cylinder.
Further, the device also comprises an inclined reinforcing plate with two sides respectively connected with the hollow cylinder and the upper cover.
Further, a base plate is further arranged on the upper surface of the upper cover, and one side of the inclined reinforcing plate is connected with the base plate.
Further, the arch-breaking cone is a conical arch-breaking cone.
Compared with the prior art, the invention has the following advantages: the combined design of the spiral seed feeding strip and the rotating disc with the guide vanes is adopted, so that the arching phenomenon is prevented, meanwhile, the seeding links are reduced, the phenomena of breakage, blockage and the like are effectively reduced, the precise seed feeding amount adjustment can be realized, the consistency and the uniformity of each row of displacement are improved, and the mechanized seeding level is improved; the spiral blade with different widths can be designed according to the requirements of the sowing amount according to the sowing amount, but the outer diameter of the spiral seed feeding strip does not need to be changed, the requirements can be met only by changing the thickness of the hollow cylindrical body, the replacement method is simple, the operation is convenient, the spiral seed feeding device is applicable to sowing under various working conditions, and the working efficiency is high.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a rotary disk type rape precise seed metering device of the present invention;
FIG. 2 is a schematic overall cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the structure of the spiral seed feeding strip in FIG. 1;
FIG. 4 is a schematic view of the structure of the rotary table in FIG. 1;
FIG. 5 is a bottom view of the turntable of FIG. 4;
FIG. 6 is a view of the lower cover body of FIG. 1;
fig. 7 is a view of the seed outlet in fig. 1.
In the figure: the seed feeding device comprises an upper cover 1 (wherein a through hole 1.1), a lower cover 2 (wherein a lower cover body 2.1, a base 2.2, a hub 2.3 and a clamping groove 2.4), a seed feeding sleeve 3 (wherein a seed feeding hole 3.1, a hollow cavity 3.2 and a hollow cylinder 3.3), a lug 4, a seed outlet 5 (wherein a lower edge 5.1, a rectangular frame 5.2, a transition curved surface 5.3, a round frame 5.4 and a lower edge 5.5), an inclined reinforcing plate 6, a base plate 7, a main shaft 8, a spiral seed feeding strip 9 (wherein a spiral blade 9.1, an internal thread 9.2, an arch breaking cone 9.3 and a hollow cylinder body 9.4), a rotary disc 10 (wherein a central through hole 10.1, a key groove 10.2, an Archimede spiral linear guide vane 10.3, a rotary disc body 10.4, a boss 10.5, a conical rotary disc body 10.6 and a circular ring 10.7) and a cavity 11.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
The rotary disk type rape precise seed metering device shown in fig. 1 and 2 comprises an upper cover 1, a lower cover 2, a seed feeding sleeve 3, a spiral seed feeding strip 9, a rotary disk 10 and a main shaft 8. Wherein, the bottom of the seed feeding sleeve 3 is fixed on the upper surface of the upper cover 1 through a base plate 7; the spiral seed feeding strip 9 is inserted into the hollow cavity 3.2 of the seed feeding sleeve 3 and is in clearance fit with the hollow cavity 3.2, the clearance fit is adopted to ensure that the spiral seed feeding strip 9 can rotate in the seed feeding sleeve 3 without resistance, and the clearance at each side is not larger than the diameter of one rapeseed; the rotary disk 10 is arranged in a cavity 11 formed by the upper cover 1 and the lower cover 2 in a closing way, and the bottom of the spiral seed feeding strip 9 passes through the through hole 1.1 of the upper cover 1 and the seed feeding sleeve 3 until the bottom of the spiral seed feeding strip is abutted against the middle part of the rotary disk 10, and in the embodiment, the upper cover 1 and the lower cover 2 are fixed in a lug 4 and bolt connection way after being closed; the main shaft 8 sequentially passes through the lower cover 2 and the rotary disk 10 from bottom to top and is screwed into the seed strip 9.
In this embodiment, the lower cover 2 includes a lower cover body 2.1, a base 2.2 disposed on a lower bottom surface of the lower cover body 2.1, and a plurality of seed outlets 5 (e.g., eight seed outlets 5 uniformly disposed in this embodiment) uniformly disposed along a circumferential direction on an edge of the lower cover body 2.1, where the base 2.2 is convenient to be fixed on the frame. Each seed outlet 5 is communicated with the cavity 11, the inner wall of the lower edge 5.1 of each seed outlet 5 is leveled with the lower bottom surface of the rotary disk 10, so that seed particles reaching the edge of the rotary disk 10 through the Archimedes spiral linear guide vane 10.3 can timely enter the seed outlet without being retained in the inner cavity of the lower cover 2 to increase the damage rate of the seed, and the seed flow reaching the next step is not influenced, thereby avoiding the flow break phenomenon of each row and improving the discharge consistency and uniformity of each row. In addition, referring to fig. 7, the seed guiding cavity of the seed outlet 5 includes a rectangular frame 5.2, a circular frame 5.4, and a transition curved surface 5.3 connecting the rectangular frame 5.2 and the circular frame 5.4, wherein the curvature of the transition curved surface is larger than the natural repose angle of the rape seed, and the lower edge 5.5 of the seed outlet 5 is rounded, so that the seed guiding cavity is convenient to be connected with a seed guiding pipeline. In this embodiment, the lower cover body 2.1 has the draw-in groove 2.4 that the number is the same with 5 numbers of play kind mouth along circumferencial direction evenly distributed, and play kind mouth 5 is the gomphosis with draw-in groove 2.4 and is connected, and every draw-in groove 2.4 inward flange rounding is convenient for archimedes spiral linear guide vane 10.3 in the rotatory in-process better laminating transition with it, and can effectively reduce the breakage rate of seed. The base 2.2 of the lower cover 2 is uniformly provided with a plurality of reinforcing ribs along the circumferential direction, so that the overall strength is improved, and the phenomena of deformation, cracking and the like due to the actual working conditions such as vibration, inclination and the like during field sowing are prevented.
In addition, the seed feeding sleeve 3 comprises a hollow cylinder 3.3 and a seed feeding port 3.1 formed at the top end of the hollow cylinder 3.3, an inclined reinforcing plate 6 is lined between the hollow cylinder 3.3 and the base plate 7 (namely, two sides of the inclined reinforcing plate 6 are respectively connected with the hollow cylinder 3.3 and the base plate 7), and the inclined reinforcing plate 6 ensures the stability in the movement process of the seed metering device; the upper end of the seed inlet 3.1 is connected with an external seed box in a jogged mode, and the cross section of the seed inlet is round. A certain capacity space is formed at the seed inlet 3.1 and is used as a seed feeding buffer hopper, and the embedded connection mode is convenient for disassembling the seed box, and the fixing mode is convenient and simple.
Referring to fig. 3, the spiral feeding seed strip 9 comprises a hollow cylindrical body 9.4, spiral blades 9.1 spirally arranged along the outer periphery of the hollow cylindrical body 9.4, and arch breaking cones 9.3 arranged at the top end of the hollow cylindrical body 9.4, wherein the spiral angle of the spiral blades 9.1 is larger than the natural sliding friction angle of the rapeseed grains, so that seeds can naturally slide down due to self gravity, the requirement on spiral thrust is reduced, the arch breaking cones can extend to the bottommost end of a seed box, a disturbance effect can be generated in rape seed groups in the seed box, and the phenomena of short strips, seedling shortage and the like which cannot continuously feed the seeds due to arch breaking phenomena of the rape seed groups are prevented; according to different widths and different sowing amounts, spiral blades with different widths can be designed according to the sowing amount requirements, but the inner diameter of the spiral seed feeding strip 9 is not required to be changed, the thickness requirement of the hollow cylindrical body 9.4 is only changed (namely, if the spiral blade width is increased, the wall thickness of the hollow cylindrical body is correspondingly reduced to ensure that the sum of the spiral blade width and the wall thickness of the hollow cylindrical body is constant), the sowing amount can be effectively controlled, precise drill sowing is achieved, the replacement method is simple, the operation is convenient, the method is applicable to sowing under various working conditions, and the working efficiency is high.
In the embodiment, the arch-breaking cone 9.3 is a conical arch-breaking cone, the inclination angle of the arch-breaking cone 9.3 is 55-65 degrees (preferably 60 degrees), and in the process, the conical arch-breaking cone rotates together under the drive of the main shaft, so that the seed stirring effect is achieved, the arch-forming phenomenon is prevented, the normal and orderly seed feeding is ensured, the breakage rate is greatly reduced in the seed feeding process, and the blocking phenomenon is avoided. As shown in fig. 4, the rotary disk 10 includes a rotary disk body 10.4 with a central through hole 10.1 and archimedes spiral linear guide vanes 10.3 uniformly arranged on the rotary disk body 10.4 in the circumferential direction; the rotary disk body 10.4 comprises a positive conical rotary disk body 10.6 and a circle of circular rings 10.7 arranged at the edge of the positive conical rotary disk body 10.6, the height of the Archimedes spiral linear guide vane 10.3 is 8-10 mm, the starting point position of the Archimedes spiral linear guide vane 10.3 is 30-35 mm (preferably 32 mm) away from the center of the rotary disk 10, and the ending point plane of the Archimedes spiral linear guide vane 10.3 and the outermost edge of the rotary disk body 10.4 are positioned on the same plane and are in clearance fit with the inner wall of the lower cover 2. When rape seeds reach the top of the rotary disk 10 through the seed inlet 3.1, the Archimedes spiral linear guide vanes 10.3 serve as guide rails, so that the seeds are uniformly dispersed to reach eight seed outlet 5, and reach the ground through a seed conveying pipe, and the sowing process is realized. In this embodiment, the rotating disc body 10.4 is a hollow rotating disc body, so as to reduce its own weight, avoid the phenomenon of shaking left and right caused by excessive centrifugal force due to the fact that the center of mass is not in the center, reduce the contact area with the inner surface of the lower cover, reduce friction force, and have smaller power consumption and more uniform rotation; meanwhile, the boss 10.5 is arranged in the hollow inner cavity of the rotary disk body and matched with the boss 2.3 in the inner cavity of the lower cover 2, as shown in fig. 5 and 6, so that the stability during rotation is improved.
The inner wall of the hollow cylindrical body 9.4 of the spiral seed feeding strip 9 is provided with an internal thread 9.2 matched with the external thread of the main shaft 8, the inner wall of the central through hole 10.1 is provided with a key slot 10.2 matched with a key on the main shaft 8, and the inner diameter of the hollow cylindrical body 9.4 is the same as that of the central through hole 10.1 of the rotating disc, so that the main shaft 8 is connected with the spiral seed feeding strip 9 through threads, the rotating disc 10 connected to the main shaft 8 and the spiral seed feeding strip 9 are fastened through interaction force, and the phenomenon that the friction resistance is overlarge and cannot move due to loosening or excessive fastening in the working process of the seed metering device is avoided.
During operation, the output transmission shaft of the transmission system of the seeder transmits power to the main shaft 8 through the coupler, the main shaft 8 drives the rotary disk 10 and the spiral seed feeding strip 9 to rotate, rape seeds in the seed feeding sleeve 3 can be conveyed up and down to the seed outlet 5 to reach a seed bed through the seed conveying pipeline, and the seed feeding sleeve 3, the upper cover 1 and the lower cover 2 are fixedly arranged on the frame through all-level bolt connection, so that the whole seeding process is realized.
The rotating disc type rape precise seed metering device adopts the combined design of the spiral seed feeding strip and the rotating disc with the guide vanes, prevents the arching phenomenon, reduces the seeding links, effectively reduces the phenomena of breakage, blockage and the like, can realize precise seed feeding adjustment and ensures the consistency of each row of displacement, thereby improving the mechanized seeding level.
Claims (7)
1. The utility model provides a rotating disc type rape precise seed metering device which characterized in that: the seed feeding device comprises an upper cover (1), a lower cover (2) which is connected with the upper cover (1) in a closing way, a seed feeding sleeve (3) which is arranged at the middle part of the upper surface of the upper cover (1), a rotating disc (10) which is arranged in a cavity (11) formed by the upper cover (1) and the lower cover (2) in a closing way, a spiral seed feeding strip (9) which is inserted into the cavity (3.2) of the seed feeding sleeve (3) and is in clearance fit with the cavity (3.2), and a main shaft (8) which penetrates through the lower cover (2) from bottom to top and is screwed into the spiral seed feeding strip (9) from bottom to top, wherein the bottom of the spiral seed feeding strip (9) penetrates through a through hole (1.1) of the upper cover (1) until the bottom of the spiral seed feeding strip is abutted against the middle part of the rotating disc (10); the spiral seed feeding strip (9) comprises a hollow cylindrical body (9.4), spiral blades (9.1) which are spirally arranged along the outer periphery of the hollow cylindrical body (9.4) and arch breaking cones (9.3) which are arranged at the top ends of the hollow cylindrical body (9.4), wherein the spiral rising angle of each spiral blade (9.1) is larger than the natural sliding friction angle of the rapeseed grains, and the inclination angle of each arch breaking cone (9.3) is 55-65 degrees; the rotary disk (10) comprises a rotary disk body (10.4) with a central through hole (10.1), and Archimedes spiral linear guide vanes (10.3) uniformly arranged on the rotary disk body (10.4) along the circumferential direction;
the rotary disc body (10.4) comprises a positive conical rotary disc body (10.6) and a circle of circular rings (10.7) arranged at the edge of the positive conical rotary disc body (10.6); the height of the Archimedes spiral linear guide vane (10.3) is 8-10 mm, the starting point position of the Archimedes spiral linear guide vane (10.3) is 30-35 mm away from the center of the rotary disk (10), and the end point plane of the Archimedes spiral linear guide vane (10.3) is positioned on the same plane with the outermost edge of the rotary disk body (10.4) and is in clearance fit with the inner wall of the lower cover (2);
the lower cover (2) comprises a lower cover body (2.1), a base (2.2) arranged on the lower bottom surface of the lower cover body (2.1) and a plurality of seed outlets (5) uniformly arranged on the edge of the lower cover body (2.1) along the circumferential direction; the seed outlets (5) are communicated with the cavity (11), and the inner wall of the lower edge (5.1) of each seed outlet (5) is leveled with the lower bottom surface of the rotary disk (10); the seed guiding cavity of the seed outlet (5) comprises a rectangular frame (5.2), a round frame (5.4) and a transition curved surface (5.3) for connecting the rectangular frame (5.2) and the round frame (5.4), the curvature of the transition curved surface (5.3) is larger than the natural repose angle of rape seeds, and the lower edge (5.5) of the seed outlet (5) is rounded; the arch breaking cone (9.3) is a conical arch breaking cone.
2. The precise rotary disk type rape seed metering device according to claim 1, wherein: the rotary disk body (10.4) is a hollow rotary disk body, a boss (10.5) is arranged in a hollow inner cavity of the rotary disk body (10.4), and the boss (10.5) is matched with an inner cavity hub (2.3) of the lower cover (2).
3. The precise rotary disk type rape seed metering device according to claim 1, wherein: the lower cover body (2.1) is uniformly provided with clamping grooves (2.4) the number of which is the same as that of the seed outlets (5) along the circumferential direction, and the seed outlets (5) are in one-to-one corresponding embedded connection with the clamping grooves (2.4); the inner edge of each clamping groove (2.4) is rounded; the base (2.2) of the lower cover (2) is uniformly provided with a plurality of reinforcing ribs along the circumferential direction.
4. The precise rotary disk type rape seed metering device according to claim 1, wherein: the inner wall of the hollow cylindrical body (9.4) is provided with an internal thread (9.2) matched with the external thread of the main shaft (8), the inner wall of the central through hole (10.1) is provided with a key slot (10.2) matched with a key on the main shaft (8), and the inner diameter of the hollow cylindrical body (9.4) is the same as the inner diameter of the central through hole (10.1).
5. The precise rotary disk type rape seed metering device according to claim 1, wherein: the seed feeding sleeve (3) comprises a hollow cylinder (3.3) and a seed feeding port (3.1) formed at the top end of the hollow cylinder (3.3).
6. The precise rotary disk type rape seed metering device according to claim 5, wherein: the device also comprises an inclined reinforcing plate (6) with two sides respectively connected with the hollow cylinder (3.3) and the upper cover (1).
7. The precise rotary disk type rape seed metering device according to claim 6, wherein: the upper surface of upper cover (1) still is equipped with backing plate (7), one side of oblique reinforcing plate (6) with backing plate (7) are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810260810.9A CN108684261B (en) | 2018-03-27 | 2018-03-27 | Rotary disk type rape precise seed metering device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810260810.9A CN108684261B (en) | 2018-03-27 | 2018-03-27 | Rotary disk type rape precise seed metering device |
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| CN108684261A CN108684261A (en) | 2018-10-23 |
| CN108684261B true CN108684261B (en) | 2024-04-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109983889A (en) * | 2019-04-25 | 2019-07-09 | 哈尔滨理工大学 | A kind of centrifugal corn seeder |
| CN110550214A (en) * | 2019-10-04 | 2019-12-10 | 通辽市神鹰飞机制造有限公司 | seeding drive arrangement of agricultural aircraft |
| CN117461453B (en) * | 2023-12-26 | 2024-03-12 | 内蒙古大学 | Degraded grassland rejuvenation and fertilization method |
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| CN101066015A (en) * | 2007-06-06 | 2007-11-07 | 山东农业大学 | Airflow type seeder |
| CN102550182A (en) * | 2010-12-14 | 2012-07-11 | 华中农业大学 | Centrifugal centralized type rape precise seed metering device |
| CN203127524U (en) * | 2012-12-31 | 2013-08-14 | 北京远东加大科技发展有限公司 | Silo arc breaking cone |
| CN103460864A (en) * | 2013-09-18 | 2013-12-25 | 中国农业大学 | Spiral line gradient type fine-quantity seed sowing device |
| CN204056851U (en) * | 2014-09-18 | 2014-12-31 | 四川华净新能源科技有限公司 | Vertical hyperbola anti-blocking center coal feeder |
| CN104521382A (en) * | 2014-12-04 | 2015-04-22 | 安徽省农业科学院农业工程研究所 | Uniform spreading turntable of multi-functional sowing and fertilizer spreading machine |
| CN204341737U (en) * | 2014-12-23 | 2015-05-20 | 许昌学院 | A kind of anti-arc flat-bottom bin |
| CN205726998U (en) * | 2016-05-16 | 2016-11-30 | 南安贤达机械有限公司 | A kind of agricultural production seeder |
| CN206743848U (en) * | 2017-05-04 | 2017-12-15 | 安阳全丰生物科技有限公司 | A kind of solid particle tossed device suitable for unmanned plane |
| CN107628413A (en) * | 2017-10-23 | 2018-01-26 | 深圳市尚水智能设备有限公司 | Device for powder feed |
| CN208128836U (en) * | 2018-03-27 | 2018-11-23 | 华中农业大学 | Disc type rape essence amount dispenser |
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