CN211721066U - Precision seeder - Google Patents
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- CN211721066U CN211721066U CN202020054359.8U CN202020054359U CN211721066U CN 211721066 U CN211721066 U CN 211721066U CN 202020054359 U CN202020054359 U CN 202020054359U CN 211721066 U CN211721066 U CN 211721066U
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Abstract
The utility model discloses a precision seeder, which comprises a main beam, a left walking wheel, a right walking wheel, a base fertilizer box device, a left fertilizing ditching disc device, a right fertilizing ditching disc device, a left seeding device assembly and a right seeding device assembly, and is characterized in that the main beam (1) is a spline beam, the left walking wheel and the right walking wheel are connected with the main beam in a sliding fit manner through a flower sleeve on a wheel carrier, and the transmission screw drives the transmission screw to adjust the; the left and right seeding device assemblies and the left fertilizing and ditching disc device are connected with the main beam in a sliding fit mode through the flower sleeve, and the transmission screw drives the main beam to adjust the distance so as to adjust the ridge distance; the left and right fertilizing and ditching disc devices are additionally provided with a fertilizing and ditching disc scraper, the extrusion wheel devices of the left and right seeding device assemblies are additionally provided with extrusion wheel scrapers, and the depth limiting wheel scrapers are additionally arranged on the depth limiting wheel devices of the left and right seeding device assemblies. The ridge spacing can be conveniently adjusted, and the precision seeder is not only suitable for dry land, but also suitable for wet and clay land, and ensures the operation quality of the precision seeder.
Description
Technical Field
The utility model relates to an agricultural seeder, in particular to a precision seeder suitable for dry land, wet land and clay land, such as a seeder for corn and soybean.
Background
In the prior art, field seeders are various and have different structures and different characteristics.
The precision seeder is a field seeder with high operation speed, accurate deep fertilizing amount, accurate seeding depth and planting distance and good seed compaction and commodity protection, and is particularly suitable for large-area land seeding such as corn, soybean and the like.
Because the regions, the plots and the planting varieties are different, and the working ridge distances are different, the ridge distance of the precision planter in the prior art is inconvenient to adjust, the positions of the devices can be adjusted only by loosening the fixed connecting pieces of the devices, and then the devices are fastened and connected to realize adjustment. Particularly, when the ridge spacing of the land needs to be changed and adjusted temporarily during the replacement operation, the ridge spacing is difficult to be adjusted conveniently in time.
In addition, when the precision seeder in the prior art is applied to wet land and clay land, the fertilizing and ditching disc, the seeding and ditching disc, the depth wheel and the double extrusion wheels are usually adhered by clay to be squeezed and do not rotate due to the large viscosity of the soil, so that uneven fertilization is caused, the depth wheel walks to drag soil to stack, the seeding and ditching disc is uneven in soil distribution and different in seeding depth, the double extrusion wheels are not sticky and press seeds, and the seeding quality is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at improving aiming at the deficiencies of the prior art, providing a ridge distance adjustment is simple and convenient, not only is applicable to dry soil, is applicable to wet soil, glues the soil moreover, excellent in use effect's precision planter.
The utility model discloses precision planter, including girder 1, left walking wheel 2a, right walking wheel 2b, base fertilizer case device 3, left fertilization ditching dish device 4a, right fertilization ditching dish device 4b, left seeder assembly 5a, right seeder assembly 5b, transmission.
The left seeding device assembly 5a and the right seeding device assembly 5b comprise a main frame 51, and a ground following connecting rod frame 52, a depth wheel device 6, a seeding device 7, a fertilizing device 8 and an extrusion wheel device 9 which are respectively connected and installed with the main frame 51.
A left lower hanger 11, a right lower hanger 12 and a middle upper pull frame 13 which are used for being connected with a suspension arm of a tractor are fixedly connected to the main beam 1.
The base fertilizer box device 3 is fixedly connected and installed with the main beam 1 through the frame plate 31, and the base fertilizer box device 3 is positioned on the upper portion of the main beam 1.
The left travelling wheel 2a and the right travelling wheel 2b are respectively connected and installed with the left end and the right end of the main beam 1 through wheel frames 20.
The left fertilization ditching disc device 4a and the right fertilization ditching disc device 4b are respectively connected and installed with the main beam 1 through a connecting plate 401 on a shaft frame rod 40 of the left fertilization ditching disc device 4a and the right fertilization ditching disc device 4b, and are positioned at the lower part of the front side of the main beam 1.
The left and right seeding device assemblies 5a and 5b are respectively connected with the main beam 1 through the ground following link rod frame 52 at the front end of the main frame 51, and the left and right seeding device assemblies 5a and 5b are positioned at the rear part of the main beam 1.
The transmission device consists of a transmission main shaft A which is rotatably matched with the wheel carrier of the left travelling wheel 2a, the wheel carrier of the right travelling wheel 2b, the ground following connecting rod frame 52 of the left seeding device assembly 5a and the ground following connecting rod frame 52 of the right seeding device assembly 5b, a transmission mechanism which is composed of a bevel gear and a shaft rod is respectively arranged between the wheel shafts of the left travelling wheel 2a and the right travelling wheel 2b and the transmission main shaft A, a bottom fertilizer box device transmission mechanism which is composed of a bevel gear and a shaft rod is arranged between the transmission main shaft A and the rotating shaft of the bottom fertilizer box device 3, a seeding device transmission mechanism which is composed of a bevel gear and a shaft rod is arranged between the transmission main shaft A and the rotating shaft of the seeding device 7, and a fertilizing device transmission mechanism which is composed of a bevel gear and a shaft rod is arranged between the rotating shaft of the seeding device 7 and the rotating shaft of the fertilizing device 8; the left traveling wheel 2a and the right traveling wheel 2b drive the transmission main shaft A to rotate when rotating and traveling.
The method is characterized in that:
(1) the main beam 1 is a spline beam, namely the main beam 1 is a tubular beam with a plum petal-shaped section;
the left travelling wheel 2a and the right travelling wheel 2b are respectively connected with the main beam 1 in a sliding fit manner through a first flower sleeve 21 on a wheel frame 20;
the left seeding device assembly 5a and the right seeding device assembly 5b are respectively connected with the main beam 1 in a sliding fit manner through a second flower sleeve 521 on the ground following connecting rod rack 52;
the left fertilization ditching disc device 4a and the right fertilization ditching disc device 4b are respectively and fixedly connected with the second flower sockets 521 on the left seeding device assembly 5a and the right seeding device assembly 5b through the connecting plates 401 on the shaft frame rods 40, so that the left fertilization ditching disc device 4a and the right fertilization ditching disc device 4b are connected with the main beam 1 in a sliding fit mode through the second flower sockets 521;
a transmission screw B is connected to the main beam 1, the left side and the right side of the transmission screw B are respectively provided with a positive thread and a negative thread, and the transmission screw B is matched with the ground of the left seeding device assembly 5a and the right seeding device assembly 5B along with a first threaded sleeve 523 on the connecting rod frame 52; a transmission screw rotating handle B1 is arranged at the shaft end of the transmission screw B, and the transmission screw B is rotated through a transmission screw rotating handle B1 to drive the left seeding device assembly 5a and the right seeding device assembly 5B, the left fertilization ditching disc device 4a and the right fertilization ditching disc device 4B to symmetrically move left and right so as to adjust the ridge distance;
a left traveling wheel axial movement adjusting screw 14a and a right traveling wheel axial movement adjusting screw 14b are respectively connected to the main beam 1, second screw sleeves 201 on wheel carriers 20 of the left traveling wheel 2a and the right traveling wheel 2b are respectively matched with the left traveling wheel axial movement adjusting screw 14a and the right traveling wheel axial movement adjusting screw 14b, a left traveling wheel axial movement adjusting screw rotating handle 141a is installed on the left traveling wheel axial movement adjusting screw 14a, and a right traveling wheel axial movement adjusting screw rotating handle 141b is installed on the right traveling wheel axial movement adjusting screw 14b to respectively drive the left traveling wheel 2a and the right traveling wheel 2b to move left and right to adjust the positions and the intervals of the left traveling wheel 2a and the right traveling wheel 2 b.
(2) The shaft frame plates 41 of the left fertilization ditching disc device 4a and the right fertilization ditching disc device 4b are respectively and fixedly connected with a first fertilization ditching disc knife rest 42 in a bilateral symmetry manner, and the first fertilization ditching disc knife rest 42 is respectively and fixedly connected with a first scraper 421 corresponding to the central part of the ditching disc 46 and a second scraper 422 corresponding to the outer edge part of the ditching disc 46 through screws;
the shaft frame plates 41 of the left fertilization ditching disc device 4a and the right fertilization ditching disc device 4b are respectively and fixedly connected with a fertilization ditching disc second tool rest 43 in a bilateral symmetry manner, and the fertilization ditching disc second tool rest 43 is fixedly connected with a third scraper 431 corresponding to the outer edge part of the ditching disc 46 through a screw;
the first scraper 421, the second scraper 422 and the third scraper 431 which are symmetrically arranged at the left side and the right side of the ditching disc 46 are matched with the left outer side surface and the right outer side surface of the ditching disc 46, so that soil adhered on the outer side surface of the ditching disc 46 can be sufficiently scraped.
(3) A U-shaped bracket 92 is fixedly connected to the extrusion wheel shaft bracket 91 of the extrusion wheel device 9, a scraper frame 93 is fixedly connected to the U-shaped bracket 92, and a left extrusion wheel scraper 94a and a right extrusion wheel scraper 94b corresponding to the left extrusion wheel 90a and the right extrusion wheel 90b are fixedly connected to the left and right ends of the scraper frame 93 by screws, respectively. When the extrusion wheel shaft frame 91 drives the extrusion wheel to rotate and adjust the position (the cone angle formed by the left extrusion wheel 90a and the right extrusion wheel 90b is in the circumferential direction), the U-shaped support 92 and the extrusion wheel shaft frame 91 rotate integrally and simultaneously, so that the relative positions of the left extrusion wheel scraper 94a and the right extrusion wheel scraper 94b and the extrusion wheel are unchanged, the wheel spaces between the left extrusion wheel scraper 94a and the right extrusion wheel scraper 94b and the wheel surfaces of the left extrusion wheel 90a and the right extrusion wheel 90b are kept unchanged, and the mud scraping effect of the scraper on the extrusion wheel is ensured.
(4) The left depth wheel scraping knife device and the right depth wheel scraping knife device are fixedly connected to the left side and the right side of the main frame 51 of the left seeding device assembly 5a and the right seeding device assembly 5b, namely the depth wheel support arms 61 of the left depth wheel 60a and the right depth wheel 60b of the depth wheel device 6 respectively;
the depth wheel scraper device H consists of a connecting frame H1, a swing rod H2, a scraper frame H3, a depth wheel scraper H4, a pull rod H5, a top spring H6 and a top spring pressure disk hand wheel H7;
the connecting frame H1 is fixedly connected with a depth wheel support arm shaft sleeve 62 of the depth wheel support arm 61;
the swing rod H2 is hinged on the connecting frame H1, the scraper frame H3 is fixedly connected to the front part of the swing rod H2, and the depth wheel scraper H4 is fixedly connected on the scraper frame H3 through screws;
the depth wheel scraper H4 and the wheel surface direction of the depth wheel 60 form a certain inclination angle, and the knife edge part H41 of the depth wheel scraper H4 is in a curve shape, namely the knife edge part H41 of the depth wheel scraper H4 corresponds to the outer contour of the depth wheel 60, so that the depth wheel scraper H4 and the wheel surface of the depth wheel 60 form sufficient contained fit, and scraped soil is discharged outwards;
a top spring seat plate H10 is fixedly connected to the rear portion of the connecting frame H1, a pull rod H5 penetrates through an opening in the top spring seat plate H10, the lower end of the pull rod H5 is hinged with the rear end of the swing rod H2, a top spring pressure plate hand wheel H7 is installed on the upper portion of the pull rod H5 in a threaded fit mode, the top spring H6 is installed between a top spring seat plate H10 and the top spring pressure plate hand wheel H7, upward pulling force is applied to the pull rod H5 by the top spring H6, and the pull rod H5 acts on the rear end of the swing rod H2, so that a depth limiting wheel scraper H4 in the front portion of the swing rod H2 keeps a; the top spring pressing disc hand wheel H7 is adjusted to compress the top spring H6, the upward pulling force of the top spring H6 on the pull rod H5 is adjusted, namely the downward acting force of the front depth wheel scraper H4 of the swing rod H2 is adjusted, so that the depth wheel scraper H4 has enough downward elastic pressure, and mixed soil adhered on the depth wheel 60 is sufficiently scraped.
The utility model discloses realize simple and convenient adjustment ridge distance, not only be applicable to dry soil, be applicable to wet soil, clay ground moreover, effectual earth that will fertilize and ditch dish, extrusion wheel, depth stop and take turns to and cohere strikes off, guarantees precision planter's operation quality.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is an exploded view schematically illustrating the structure of the embodiment of the present invention;
FIG. 3 is a schematic structural view of a main beam 1 shafting in front view of FIGS. 1 and 2;
FIG. 4 is a schematic structural view of a rear view main beam 1 shafting of FIGS. 1 and 2;
FIGS. 5 and 6 are schematic structural views of a fertilizing and ditching disc device;
FIG. 7 is a schematic view of the construction of the squeeze wheel assembly;
fig. 8 and 9 are schematic structural diagrams of the depth wheel device.
Detailed Description
The utility model discloses precision planter, including girder 1, left walking wheel 2a, right walking wheel 2b, base fertilizer case device 3, left fertilization ditching dish device 4a, right fertilization ditching dish device 4b, left seeder assembly 5a, right seeder assembly 5b, transmission.
The left seeding device assembly 5a and the right seeding device assembly 5b comprise a main frame 51, and a ground following connecting rod frame 52, a depth wheel device 6, a seeding device 7, a fertilizing device 8 and an extrusion wheel device 9 which are respectively connected and installed with the main frame 51.
A left lower hanger 11, a right lower hanger 12 and a middle upper pull frame 13 which are used for being connected with a suspension arm of a tractor are fixedly connected to the main beam 1.
The base fertilizer box device 3 is fixedly connected and installed with the main beam 1 through the frame plate 31, and the base fertilizer box device 3 is positioned on the upper portion of the main beam 1.
The left travelling wheel 2a and the right travelling wheel 2b are respectively connected and installed with the left end and the right end of the main beam 1 through wheel frames 20.
The left fertilization ditching disc device 4a and the right fertilization ditching disc device 4b are respectively connected and installed with the main beam 1 through a connecting plate 401 on a shaft frame rod 40 of the left fertilization ditching disc device 4a and the right fertilization ditching disc device 4b, and are positioned at the lower part of the front side of the main beam 1.
The left and right seeding device assemblies 5a and 5b are respectively connected with the main beam 1 through the ground following link rod frame 52 at the front end of the main frame 51, and the left and right seeding device assemblies 5a and 5b are positioned at the rear part of the main beam 1.
The transmission device consists of a transmission main shaft A which is rotatably matched with the wheel carrier of the left travelling wheel 2a, the wheel carrier of the right travelling wheel 2b, the ground following connecting rod frame 52 of the left seeding device assembly 5a and the ground following connecting rod frame 52 of the right seeding device assembly 5b, a transmission mechanism which is composed of a bevel gear and a shaft rod is respectively arranged between the wheel shafts of the left travelling wheel 2a and the right travelling wheel 2b and the transmission main shaft A, a bottom fertilizer box device transmission mechanism which is composed of a bevel gear and a shaft rod is arranged between the transmission main shaft A and the rotating shaft of the bottom fertilizer box device 3, a seeding device transmission mechanism which is composed of a bevel gear and a shaft rod is arranged between the transmission main shaft A and the rotating shaft of the seeding device 7, and a fertilizing device transmission mechanism which is composed of a bevel gear and a shaft rod is arranged between the rotating shaft of the seeding device 7 and the rotating shaft of the fertilizing device 8; the left traveling wheel 2a and the right traveling wheel 2b drive the transmission main shaft A to rotate when rotating and traveling.
The method is characterized in that:
(1) the main beam 1 is a spline beam, namely the main beam 1 is a tubular beam with a plum petal-shaped section;
the left travelling wheel 2a and the right travelling wheel 2b are respectively connected with the main beam 1 in a sliding fit manner through a first flower sleeve 21 on a wheel frame 20;
the left seeding device assembly 5a and the right seeding device assembly 5b are respectively connected with the main beam 1 in a sliding fit manner through a second flower sleeve 521 on the ground following connecting rod rack 52;
the left fertilization ditching disc device 4a and the right fertilization ditching disc device 4b are respectively and fixedly connected with the second flower sockets 521 on the left seeding device assembly 5a and the right seeding device assembly 5b through the connecting plates 401 on the shaft frame rods 40, so that the left fertilization ditching disc device 4a and the right fertilization ditching disc device 4b are connected with the main beam 1 in a sliding fit mode through the second flower sockets 521;
a transmission screw B parallel to the main beam 1 is connected to the main beam 1, the transmission screw B axially positions and rotates through a shaft sleeve 10 fixedly connected with the main beam 1, the left side and the right side of the transmission screw B are respectively provided with positive and negative threads, and the transmission screw B is matched with a first threaded sleeve 523 on a ground following connecting rod frame 52 of a left seeding device assembly 5a and a right seeding device assembly 5B; a transmission screw rotating handle B1 is arranged at the shaft end of the transmission screw B, and the transmission screw B is rotated through a transmission screw rotating handle B1 to drive the left seeding device assembly 5a and the right seeding device assembly 5B, the left fertilization ditching disc device 4a and the right fertilization ditching disc device 4B to symmetrically move left and right so as to adjust the ridge distance;
a left traveling wheel axial movement adjusting screw 14a and a right traveling wheel axial movement adjusting screw 14b are respectively connected to the main beam 1, second screw sleeves 201 on wheel carriers 20 of the left traveling wheel 2a and the right traveling wheel 2b are respectively matched with the left traveling wheel axial movement adjusting screw 14a and the right traveling wheel axial movement adjusting screw 14b, a left traveling wheel axial movement adjusting screw rotating handle 141a is installed on the left traveling wheel axial movement adjusting screw 14a, and a right traveling wheel axial movement adjusting screw rotating handle 141b is installed on the right traveling wheel axial movement adjusting screw 14b to respectively drive the left traveling wheel 2a and the right traveling wheel 2b to move left and right to adjust the positions and the intervals of the left traveling wheel 2a and the right traveling wheel 2 b.
(2) The shaft frame plates 41 of the left fertilization ditching disc device 4a and the right fertilization ditching disc device 4b are respectively and fixedly connected with a first fertilization ditching disc knife rest 42 in a bilateral symmetry manner, and the first fertilization ditching disc knife rest 42 is respectively and fixedly connected with a first scraper 421 corresponding to the central part of the ditching disc 46 and a second scraper 422 corresponding to the outer edge part of the ditching disc 46 through screws;
the shaft frame plates 41 of the left fertilization ditching disc device 4a and the right fertilization ditching disc device 4b are respectively and fixedly connected with a fertilization ditching disc second tool rest 43 in a bilateral symmetry manner, and the fertilization ditching disc second tool rest 43 is fixedly connected with a third scraper 431 corresponding to the outer edge part of the ditching disc 46 through a screw;
the first scraper 421, the second scraper 422 and the third scraper 431 which are symmetrically arranged at the left side and the right side of the ditching disc 46 are matched with the left outer side surface and the right outer side surface of the ditching disc 46;
the edges of the first scraper 421 and the second scraper 422 are saw-toothed; the third blade 431 has a straight edge.
(3) A U-shaped bracket 92 is fixedly connected to an extrusion wheel shaft bracket 91 of the extrusion wheel device 9, a soil scraping knife rest 93 is fixedly connected to the U-shaped bracket 92, and a left extrusion wheel soil scraping knife 94a and a right extrusion wheel soil scraping knife 94b which correspond to the left extrusion wheel 90a and the right extrusion wheel 90b are fixedly connected to the left end and the right end of the soil scraping knife rest 93 through screws respectively; the left extrusion wheel scraper 94a and the right extrusion wheel scraper 94b are arc-shaped corresponding to the outer edge surface of the extrusion wheel.
(4) A left depth wheel earth scraper device and a right depth wheel earth scraper device are respectively and fixedly connected to the depth wheel support arms 61 of the left depth wheel 60a and the right depth wheel 60b of the depth wheel device 6;
the depth wheel scraper device H consists of a connecting frame H1, a swing rod H2, a scraper frame H3, a depth wheel scraper H4, a pull rod H5, a top spring H6 and a top spring pressure disk hand wheel H7;
the connecting frame H1 is fixedly connected with a depth wheel support arm shaft sleeve 62 of the depth wheel support arm 61;
the swing rod H2 is hinged on the connecting frame H1, the scraper frame H3 is fixedly connected to the front part of the swing rod H2, and the depth wheel scraper H4 is fixedly connected on the scraper frame H3 through screws;
the depth wheel scraper H4 and the wheel surface direction of the depth wheel 60 form a certain inclination angle, and the edge part H41 of the depth wheel scraper H4 is in a curve shape, namely the edge part H41 of the depth wheel scraper H4 corresponds to the outer contour of the depth wheel 60;
the rear part of the connecting frame H1 is fixedly connected with a top spring seat plate H10, a pull rod H5 penetrates through an opening on the top spring seat plate H10, the lower end of the pull rod H5 is hinged with the rear end of a swing rod H2, a top spring pressure plate hand wheel H7 is installed on the upper part of the pull rod H5 in a threaded fit mode, and a top spring H6 is installed between a top spring seat plate H10 and the top spring pressure plate hand wheel H7.
Claims (4)
1. The precision seeder comprises a main beam (1), a left traveling wheel (2a), a right traveling wheel (2b), a base fertilizer box device (3), a left fertilizing and ditching disc device (4a), a right fertilizing and ditching disc device (4b), a left seeding device assembly (5a), a right seeding device assembly (5b) and a transmission device;
the left seeding device assembly (5a) and the right seeding device assembly (5b) comprise a main frame (51), and a ground following connecting rod frame (52), a depth wheel device (6), a seeding device (7), a fertilizing device (8) and an extrusion wheel device (9) which are respectively connected and installed with the main frame (51);
a left lower hanging bracket (11), a right lower hanging bracket (12) and a middle upper pulling frame (13) which are used for being connected with a suspension arm of a tractor are fixedly connected to the main beam (1);
the base fertilizer box device (3) is fixedly connected and installed with the main beam (1) through a frame plate (31), and the base fertilizer box device (3) is positioned at the upper part of the main beam (1);
the left travelling wheel (2a) and the right travelling wheel (2b) are respectively connected and installed with the left end and the right end of the main beam (1) through wheel frames (20);
the left fertilization ditching disc device (4a) and the right fertilization ditching disc device (4b) are respectively connected with the main beam (1) through a connecting plate (401) on a shaft frame rod (40), and the left fertilization ditching disc device (4a) and the right fertilization ditching disc device (4b) are positioned at the lower part of the front side of the main beam (1);
the left seeding device assembly (5a) and the right seeding device assembly (5b) are respectively connected with the main beam (1) through a ground following connecting rod frame (52) at the front end of the main frame (51), and the left seeding device assembly (5a) and the right seeding device assembly (5b) are positioned at the rear part of the main beam (1);
the method is characterized in that:
the main beam (1) is a spline beam, namely the main beam (1) is a tubular beam with a plum petal-shaped section;
the left travelling wheel (2a) and the right travelling wheel (2b) are respectively connected with the main beam (1) in a sliding fit manner through a first flower sleeve (21) on a wheel frame (20);
the left seeding device assembly (5a) and the right seeding device assembly (5b) are respectively connected with the main beam (1) in a sliding fit manner through a second flower sleeve (521) on the ground following connecting rod frame (52);
the left fertilization ditching disc device (4a) and the right fertilization ditching disc device (4b) are respectively fixedly connected with a second flower sleeve (521) on the left seeding device assembly (5a) and the right seeding device assembly (5b) through a connecting plate (401) on a shaft frame rod (40) of the left fertilization ditching disc device and the right fertilization ditching disc device, so that the left fertilization ditching disc device (4a) and the right fertilization ditching disc device (4b) are connected with the main beam (1) in a sliding fit mode through the second flower sleeve (521);
a transmission screw rod (B) is connected to the main beam (1), the left side and the right side of the transmission screw rod (B) are respectively provided with a positive thread and a negative thread, and the transmission screw rod (B) is matched with the ground of the left seeding device assembly (5a) and the right seeding device assembly (5B) along with a first threaded sleeve (523) on the connecting rod frame (52); a transmission screw rotating handle (B1) is arranged at the shaft end of the transmission screw (B), and the transmission screw (B) is rotated by the transmission screw rotating handle (B1) to drive the left seeding device assembly (5a), the right seeding device assembly (5B), the left fertilizing and ditching disc device (4a) and the right fertilizing and ditching disc device (4B) to symmetrically move left and right so as to adjust the ridge distance;
a left travelling wheel axial movement adjusting screw rod (14a) and a right travelling wheel axial movement adjusting screw rod (14b) are respectively connected on the main beam (1), a second screw sleeve (201) on a wheel frame (20) of the left travelling wheel (2a) and the right travelling wheel (2b) is respectively matched with the left travelling wheel axial movement adjusting screw rod (14a) and the right travelling wheel axial movement adjusting screw rod (14b), a left traveling wheel axial movement adjusting screw rod rotating handle (141a) is arranged on the left traveling wheel axial movement adjusting screw rod (14a), a right traveling wheel axial movement adjusting screw rod rotating handle (141b) is arranged on the right traveling wheel axial movement adjusting screw rod (14b) and respectively drives the left traveling wheel (2a) and the right traveling wheel (2b) to move left and right to adjust the positions and the intervals of the left traveling wheel (2a) and the right traveling wheel (2 b).
2. The precision seed planter according to claim 1, wherein:
the shaft frame plates (41) of the left fertilization ditching disc device (4a) and the right fertilization ditching disc device (4b) are respectively and fixedly connected with a first fertilization ditching disc knife rest (42) in a bilateral symmetry mode, and the first fertilization ditching disc knife rest (42) is respectively and fixedly connected with a first scraper (421) corresponding to the central part of the ditching disc (46) and a second scraper (422) corresponding to the outer edge part of the ditching disc (46) through screws;
the shaft frame plates (41) of the left fertilization ditching disc device (4a) and the right fertilization ditching disc device (4b) are also provided with fertilization ditching disc second tool rests (43) in a bilateral symmetry mode in a fixed connection mode, and third scrapers (431) corresponding to the outer edge portions of the ditching discs (46) are fixedly connected to the fertilization ditching disc second tool rests (43) through screws; the first scraper (421), the second scraper (422) and the third scraper (431) which are symmetrically arranged at the left side and the right side of the ditching disc (46) are matched with the left outer side surface and the right outer side surface of the ditching disc (46).
3. The precision seed planter according to claim 1, wherein:
a U-shaped support (92) is fixedly connected to an extrusion wheel shaft frame (91) of the extrusion wheel device (9), a soil scraping knife rest (93) is fixedly connected to the U-shaped support (92), and a left extrusion wheel soil scraping knife (94a) and a right extrusion wheel soil scraping knife (94b) which correspond to the left extrusion wheel (90a) and the right extrusion wheel (90b) are fixedly connected to the left end and the right end of the soil scraping knife rest (93) through screws respectively.
4. Precision planter according to claim 1, 2 or 3, characterized in that:
a left depth wheel earth scraper device and a right depth wheel earth scraper device are respectively and fixedly connected to the depth wheel support arms (61) of a left depth wheel (60a) and a right depth wheel (60b) of the depth wheel device (6);
the depth wheel scraper device (H) consists of a connecting frame (H1), a swing rod (H2), a scraper frame (H3), a depth wheel scraper (H4), a pull rod (H5), a top spring (H6) and a top spring pressure plate hand wheel (H7);
the connecting frame (H1) is fixedly connected with a depth wheel support arm shaft sleeve (62) of the depth wheel support arm (61);
the swing rod (H2) is hinged on the connecting frame (H1), the scraper frame (H3) is fixedly connected to the front part of the swing rod (H2), and the depth wheel scraper (H4) is fixedly connected to the scraper frame (H3) through a screw;
the depth wheel scraper (H4) and the wheel surface direction of the depth wheel (60) form a certain inclination angle, and the knife edge part (H41) of the depth wheel scraper (H4) is in a curve shape, namely the knife edge part (H41) of the depth wheel scraper (H4) corresponds to the outer contour of the depth wheel (60);
the rear part of the connecting frame (H1) is fixedly connected with a top spring seat plate (H10), a pull rod (H5) penetrates through an opening on the top spring seat plate (H10), the lower end of the pull rod (H5) is hinged with the rear end of a swing rod (H2), a top spring pressure plate hand wheel (H7) is installed on the upper part of the pull rod (H5) in a threaded fit mode, a top spring (H6) is installed between a top spring seat plate (H10) and the top spring pressure plate hand wheel (H7), the top spring (H6) applies upward pulling force to the pull rod (H5), and the pull rod (H5) acts on the rear end of the swing rod (H2) so that a depth limiting wheel scraper (H4) in the front part of the swing rod (H2) keeps a certain downward acting force; the pushing spring (H6) is compressed by adjusting a pushing spring pressure plate hand wheel (H7), the upward pulling force of the pushing spring (H6) on the pull rod (H5) is adjusted, namely the downward acting force of the front depth wheel scraper (H4) of the swing rod (H2) is adjusted, so that the depth wheel scraper (H4) has enough downward elastic pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020054359.8U CN211721066U (en) | 2020-01-12 | 2020-01-12 | Precision seeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020054359.8U CN211721066U (en) | 2020-01-12 | 2020-01-12 | Precision seeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211721066U true CN211721066U (en) | 2020-10-23 |
Family
ID=72881091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020054359.8U Active CN211721066U (en) | 2020-01-12 | 2020-01-12 | Precision seeder |
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