CN214430079U - Paddy rice dry direct seeding seeder chassis - Google Patents

Abstract

The utility model discloses a chassis of a rice dry direct seeding seeder, which belongs to the technical field of agricultural machinery and is used for solving the technical problem that the ground unevenness affects the seed budding rate when the chassis pulls a mechanical vehicle to rut deeper during wet-sticky and soft-soil plot seeding in the prior art; the utility model comprises a frame main body; the furrow pressing mechanism is provided with a first furrow pressing wheel for pressing out the shallow fertilizing furrow and a second furrow pressing wheel for pressing out the seeding furrow which are sequentially and horizontally arranged at the lower part of the frame main body; the spike-tooth soil covering device is rotationally connected to the rear part of the second furrow pressing wheel and is provided with a poking tooth group for covering and leveling the groove and a ditching sheet for ditching the deep fertilization groove; wherein, the frame main part is located first ditching wheel the place ahead and installs blade earthing mechanism, and blade earthing mechanism corresponds and pulls mechanical wheel position and install a plurality of earthing blades for cover flat car rut and level the piece of land, the utility model discloses have and to cover flat car rut and make ground level, improve seed rate of emergence and regularity, increase output's beneficial effect.

Description

Paddy rice dry direct seeding seeder chassis

Technical Field

The utility model relates to the technical field of agricultural machinery, especially, relate to a direct seeding seeder chassis of rice drought.

Background

The direct dry seeding of rice is a cultivation mode of directly sowing seeds in dry land preparation without raising seedlings and transplanting, is also a form of rice planting mechanization, has the characteristics of labor saving, cost saving, water resource saving, land saving, reduction of labor intensity of rice growers, remarkable economic benefit and the like, and has important significance for realizing light weight, specialization, scale and intensification of rice production;

a Chinese utility model patent disclosed in the prior art, the application date is 06.2020/05.78.application number is 202020720853.3.bulletin number is CN212116164U < A novel paddy dry direct seeding machine ditch pressing chassis >, the disadvantages of inconsistent seeding depth and congestion and drag pile exist when seeding in wet sticky land blocks and small soil blocks, when the chassis is used for seeding under the action of traction machinery, especially spring waterlogging and soil loosening soil, the rut pressed by wheels of the traction machinery is deeper, the seed seeding depth is inconsistent when seeding due to uneven ground, the one-time seed preservation is seriously influenced, and the yield is reduced;

therefore, how to solve the problems of the prior art that the rutting is deep in spring waterlogging sticky land blocks, the rutting is deep in loosening soil land blocks and the sowing effect is influenced becomes an important technical problem which needs to be solved urgently by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defect that prior art exists, providing a can cover the flat rut, make ground level, improve seed emergence rate, regularity, increase of production's a direct seeder chassis of rice drought.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model discloses a direct seeding seeder chassis of rice drought, include:

a frame body detachably connected to the traction machine;

a ditch pressing mechanism which is provided with a first ditch pressing wheel for pressing out a shallow fertilizing ditch and a second ditch pressing wheel for pressing out a seeding ditch, and the first ditch pressing wheel and the second ditch pressing wheel are sequentially and horizontally arranged at the lower part of the frame main body;

the spike-tooth soil covering device is rotationally connected behind the second furrow pressing wheel and is provided with a poking tooth group for covering and leveling the groove and a ditching sheet for ditching the deep fertilization groove;

the frame main body is located a blade soil covering mechanism is installed in front of the first pressure groove wheel, and a plurality of soil covering blades are installed on the blade soil covering mechanism corresponding to the positions of wheels of the traction machine and used for covering a flat track and a flat land block.

Further, the blade soil covering mechanism comprises a main shaft which is rotatably connected with the frame main body;

the main shaft is provided with a plurality of groups of blade groups at intervals along the length direction, the adjacent two groups of blade groups are arranged in a staggered mode, and each blade group comprises at least one soil covering blade, so that the main shaft rotates, and the soil covering blades stir soil to level the land.

Further, the earthing blade comprises a base and a blade body;

the base is far away from with blade main part detachable connection, the base is far away from blade main part end with main shaft fixed connection.

Further, the blade main part is L-shaped plate-shaped body structure, and the sides of the two sides of the vertical section and the horizontal section of the L-shaped plate-shaped body structure are both formed with guide walls of arc structures.

Furthermore, the ditch pressing mechanism is fixedly connected with the frame main body through two mounting plates;

a rotating shaft is arranged between the two mounting plates;

the rotating shaft drives the first furrow pressing wheel, the second furrow pressing wheel, the spike-tooth soil covering device and the blade soil covering mechanism to rotate actively through a chain and a chain wheel.

Furthermore, two be located between the mounting panel first pressure ditch wheel, second pressure ditch wheel rear all links firmly the pipe that is used for guiding fertilizer, seed orientation to place in ground through the crossbeam.

Furthermore, a plurality of rows of shifting tooth groups covering the flat grooves are distributed on the spike tooth soil covering device along the length direction;

the side part of the spike-tooth soil covering device corresponding to the position of the first furrow pressing wheel and the second furrow pressing wheel pressed out of the groove is fixedly connected with a disc-shaped furrowing blade for digging a deep fertilization groove;

the shifting tooth group comprises a plurality of shifting teeth, and the shifting teeth are of a plate-shaped structure;

the ditching piece comprises a first piece body and a second piece body;

the first sheet body and the second sheet body are symmetrically and fixedly connected and form a disc-shaped structure with the thickness of the middle part larger than that of the edge.

Furthermore, circular separation blades are fixedly connected to two ends of the spike tooth soil covering device, tooth portions are formed at edge positions of the separation blades, and the separation blades are the first sheet body or the second sheet body.

Furthermore, the blade soil covering mechanism further comprises a soil retaining part for blocking the soil covering blades from stirring splashed soil blocks, and the frame main body is positioned between the channel pressing mechanism and the blade soil covering mechanism and fixedly connected with the soil retaining part.

Further, the soil guard member includes a fixing shaft fixedly coupled with the frame body;

the fixed shaft is fixedly connected with a baffle plate with an arc structure corresponding to the position of the soil covering blade.

In the technical scheme, the utility model provides a pair of direct seeder chassis of rice drought, beneficial effect:

1. the utility model relates to a paddy dry direct seeding machine chassis, it has increased blade earthing mechanism in the front of the mechanism of pressing furrow compared with the prior art, blade earthing mechanism stirs the soil of rut position through the rotation of earthing blade, realize providing the level land piece for the mechanism of pressing furrow, the depth of seed in the soil is unanimous when guaranteeing to sow, improve seed budding rate, regularity, finally realize the purpose of educating the form seedling, improve output, in addition, blade earthing mechanism is under the effect of traction machinery, blade earthing mechanism can drive the earthing blade to rotate voluntarily, guaranteed that the earthing blade is in the wet glutinous land piece, it can still rotate in a flexible way to loose the soil land piece;

2. the utility model discloses a direct seeder chassis in rice drought, blade earthing mechanism still are provided with and keep off the native part, keep off the native piece that flies to splash through fixed axle and baffle are kept apart effectively to the native piece can be followed the baffle of arc structure and kept away from the pressure ditch mechanism region, further guarantee seeding landmass soil planarization.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

FIG. 1 is an axonometric view of a chassis of a dry direct seeding rice machine disclosed by the utility model;

FIG. 2 is a front view of a chassis of the rice dry direct seeding machine disclosed by the utility model;

FIG. 3 is a top view of a chassis of a dry direct seeding rice machine disclosed by the utility model;

FIG. 4 is a sectional view A-A of the chassis of the dry direct seeding rice machine disclosed by the utility model;

fig. 5 is the utility model discloses a soil covering blade structure schematic diagram of a chassis of a rice dry direct seeding machine.

Description of reference numerals:

10. a frame body;

20. a groove pressing mechanism; 21. mounting a plate; 22. a rotating shaft; 23. a first grooving wheel; 24. a second grooving wheel; 25. a protrusion; 26. a conduit;

30. a spike-tooth covering device; 31. a set of poking teeth; 32. ditching slices; 321. a first sheet body; 322. a second sheet body; 33. a baffle plate; 331. a tooth portion;

40. a blade soil covering mechanism; 41. a drive shaft; 42. covering the leaves with soil; 421. a base; 422. a blade main body; 423. a guide wall; 43. a soil retaining member; 431. a fixed shaft; 432. and a baffle plate.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1;

the utility model relates to a direct seeder chassis of rice drought, include:

a frame body 1 detachably connected to a traction machine;

a furrow pressing mechanism 20 which is provided with a first furrow pressing wheel 23 for pressing out a shallow fertilizing furrow and a second furrow pressing wheel 24 for pressing out a seeding furrow which are sequentially and horizontally arranged at the lower part of the frame body 1;

the spike tooth soil covering device 30 is rotationally connected behind the second furrow pressing wheel 24, and the spike tooth soil covering device 30 is provided with a poking tooth group 31 for covering and leveling the groove and a ditching sheet 32 for ditching the deep fertilization groove;

wherein, the frame body 1 is arranged in front of the first ditching wheel 23 and is provided with a blade soil covering mechanism 40, and the blade soil covering mechanism 40 is provided with a plurality of soil covering blades 42 corresponding to the positions of the wheels of the traction machine and is used for covering flat tracks and flat land blocks.

Specifically, referring to fig. 1, the seeding device and the traction mechanism (not shown) for driving the seeding device to move in the structure are the prior art, the seeding device is sequentially provided with a fertilizer output end during shallow fertilization, a seed output end during seeding and a fertilizer output end during deep fertilization, the traction mechanism provides traction power for the novel rice dry direct seeding machine furrowing chassis, the traction mechanism provides active rotary power for the first furrowing wheel 23, the second furrowing wheel 24, the spike-tooth soil covering device 30 and the blade soil covering mechanism 40 of the furrowing mechanism 20 through a transmission mechanism, this is just one example, the novel rice dry direct seeding machine furrowing chassis disclosed by the utility model can also provide active rotary power for the furrowing mechanism 20, the spike-tooth soil covering device 30 and the blade soil covering mechanism 40 in other ways, and compared with the prior art, the blade soil covering mechanism 40 is added in the structure;

referring to fig. 4, the chassis is detachably fixed below the sowing device through a frame body 10, a ditch pressing mechanism 20 is fixed at the lower part of the frame body 10, a traction mechanism is hung at the side of a first ditch pressing wheel 23 of the ditch pressing mechanism 20, and preferably, the ditch pressing mechanism 20 comprises a mounting plate 21; a first ditching wheel 23, a second ditching wheel 24 and a spike-tooth soil covering device 30 are sequentially and rotatably connected between the two mounting plates 21 on the same horizontal line; the upper parts of the two mounting plates 21 are fixedly connected with the frame main body 10, and a rotating shaft 22 connected with a transmission mechanism of a traction machine is arranged between the two mounting plates 21 and above the first ditching wheel 23; the rotating shaft 22 transmits the rotating power to the first and second furrow pressing wheels 23 and 24, the spike-tooth soil covering device 30 and the blade soil covering mechanism 40 through a chain and a chain wheel, so that the first and second furrow pressing wheels 23 and 24, the spike-tooth soil covering device 30 and the blade soil covering mechanism 40 actively rotate along the ground, and the rotating effectiveness of the first and second furrow pressing wheels 23 and 24, the spike-tooth soil covering device 30 and the blade soil covering mechanism 40 is ensured;

the spike tooth soil covering device 30 is fixedly connected with a shifting tooth group 31 and a ditching sheet 32, when the spike tooth soil covering device 30 actively rotates along the ground, the shifting tooth group 31 can cover soil in the grooves pressed by the first furrow pressing wheel 23 and the second furrow pressing wheel 24, the ditching sheet 32 can throw the soil under the action of active rotation, and the soil covering effect on the grooves pressed by the first furrow pressing wheel 23 and the second furrow pressing wheel 24 can be achieved;

referring to fig. 2, the two lug bosses 25 of the first and second furrow pressing wheels 23 and 24 correspond to one ditching sheet 32 in a group, and the side application of nitrogen fertilizer is performed on the side parts of the two adjacent lug bosses 25 through the ditching sheets 32, so that two rows of seedlings correspond to one nitrogen fertilizer belt, the utilization rate of the nitrogen fertilizer is improved, and the waste of nitrogen fertilizer nutrients is avoided;

the blade soil covering mechanism 40 is provided with a plurality of soil covering blades 42 corresponding to the positions of wheels of the traction machinery, the blade soil covering mechanism 40 drives the soil covering blades 42 to rotate actively, the soil covering blades 42 can still rotate flexibly in wet and sticky land blocks and small land blocks, soil at a track position is stirred through the rotation of the soil covering blades 42, flat land blocks are provided for the furrow pressing mechanism 20, the depth of seeds in the soil is consistent during sowing, the germination rate and the uniformity of the seeds are improved, the purpose of breeding seedlings is finally achieved, and the yield is improved;

as shown in fig. 4;

preferably, the blade soil covering mechanism 40 includes a main shaft 41 rotatably connected to the frame body 1;

the main shaft 41 is provided with a plurality of blade sets at intervals along the length direction, the two adjacent blade sets are arranged in a staggered mode, and each blade set comprises at least one soil covering blade 42, so that the main shaft 41 rotates and the soil covering blades 42 stir soil to level the land.

Specifically, seven blade groups are installed on the outer wall of the two ends of the main shaft 41 corresponding to the positions of the wheels of the traction machine at intervals, each blade group comprises two soil covering blades 42, the included angle between the two soil covering blades 42 in the same group is fixedly connected to the outer wall of the main shaft 41 in a 180-degree manner, in addition, two adjacent blade groups are arranged in a staggered manner (namely, the four soil covering blades 42 in the two adjacent blade groups form a cross structure), when the main shaft 41 is driven by the traction machine to rotate at a high speed, and then the soil covering blades 42 shift soil leveling blocks at the track positions;

as shown in fig. 5;

preferably, the casing leaves 42 comprise a base 421 and a leaf body 422;

the base 421 can be detachably connected with the blade body 422, and the end of the base 421 away from the blade body 422 is fixedly connected with the main shaft 41.

Specifically, in the structure, one end of the base 421 is fixedly connected with the main shaft 41, and the other end of the base can be detachably connected with the blade main body 422 through a bolt assembly, so that the subsequent maintenance is facilitated, the replacement of the blade main body 422 is facilitated, and in addition, the number of the blade groups to be installed is conveniently selected according to the width of the wheel;

preferably, the blade body 422 is an L-shaped plate structure, and the side edges of both sides of the vertical section and the horizontal section of the L-shaped plate structure are both formed with guide walls 423 having an arc structure.

In particular, see FIG. 5; in the structure, the blade main body 422 can be bent into an L-shaped structure through a bending process, and the two sides of the L-shaped structure are cut into the guide walls 423 with an arc-shaped structure through a cutting process, the guide walls 423 with the arc-shaped structure on the two sides of the vertical section of the blade main body 422 and the guide walls 423 with the arc-shaped structure on the two sides of the horizontal section of the blade main body 422 are all different in center, and the centers of the arc-shaped structures of the four guide walls 423 are on the same side of the radial axis of the blade soil covering mechanism 40;

in this embodiment, the blade body 422 may also be cast into an L-shaped structure by a casting process, and the guide walls 423 are cast and formed on two sides of the L-shaped structure, and when the blade soil covering mechanism 40 rotates, the blade soil covering mechanism is guided into the rut grooves by the guide walls 423, so as to achieve the purpose of leveling the ruts and leveling the land blocks;

as shown in fig. 4;

preferably, a guide pipe 26 for guiding the fertilizer and the seeds to be directionally placed on the ground is fixedly connected between the two mounting plates 21 and behind the first furrow pressing wheel 23 and the second furrow pressing wheel 24 through a cross beam.

Specifically, as shown in fig. 1, in the structure, a guide pipe 40 is fixedly connected between the two mounting plates 21 and behind the first and second pressure groove wheels 23 and 24 corresponding to the protruding parts 25 through a cross beam;

the guide pipe 40 is a hollow pipe, the top end of the guide pipe 40 is communicated with the fertilizer output end and the seed output end of the seeding device, the bottom end of the guide pipe 40 is opened and is close to the ground, when the chassis runs, the fertilizer and the seeds can be scattered by the soil blocks which are easy to jump up due to the jolt of the chassis or the high-speed running of the first ditching wheel 23 and the second ditching wheel 24, the fertilizer and the seeds are guided to the appointed groove position by the guide pipe 40, the fertilizer and the seeds are prevented from being scattered by the soil blocks, and the fertilizer efficiency and the seedling formation effect after the seeds sprout are ensured;

referring to fig. 1 and 3:

preferably, the spike tooth soil covering device 30 is provided with a plurality of rows of poking tooth groups 31 covering flat grooves along the length direction;

the side part of the spike-tooth soil covering device 30 corresponding to the position of the first furrow pressing wheel 23 and the second furrow pressing wheel 24 for pressing out the furrows is fixedly connected with a disc-shaped furrowing blade 32 for digging out a deep fertilization furrow;

the shifting tooth group 31 comprises a plurality of shifting teeth which are of a plate-shaped structure;

the ditching blade 32 comprises a first blade 321 and a second blade 322;

the first sheet 321 and the second sheet 322 are symmetrically and fixedly connected and form a disc-shaped structure with a thickness in the middle part larger than that in the edge part.

Specifically, the ditching blade 32 is a revolving body disc structure, which comprises a first blade 321 and a second blade 322, and a disc-shaped structure with the middle thickness larger than the edge thickness is formed by symmetrically and fixedly connecting the first blade 321 and the second blade 322, so that the rotation resistance of the ditching blade 32 is favorably reduced, the rotation flexibility is improved, and meanwhile, under the active rotation action of the ditching blade 32, the edge position of the ditching blade is utilized to cut off the hay, grass winding is avoided, and the rotation flexibility of the ditching blade 32 can be further ensured;

in this structure, every group dials tooth group 31 and includes three tooth of dialling, three tooth circumference array of dialling is on spike tooth covering device 30 outer wall, and dial the tooth and be the platelike body structure, it is shown specifically to refer to fig. 4, it is the platelike body structure to dial the projection of tooth on spike tooth covering device 30 cross section, refer to fig. 3, it is terminal to be formed with the crooked flexion of spike tooth covering device 30 tip towards the spike tooth, when spike tooth covering device 30 rolls along ground, dial the tooth and dial soil and to fertilize the slot, the seeding slot carries out the earthing respectively, simultaneously with the hay in the soil, the straw is thrown away, avoid the hay, the straw hinders the covering device earthing.

Referring to FIG. 3:

preferably, the two ends of the spike sheath 30 are fixedly connected with circular blocking pieces 33, the edge of the blocking piece 33 is formed with a tooth 331, and the blocking piece 33 is a first piece 321 or a second piece 322.

Specifically, the blocking piece 33 is installed at the end part of the spike tooth covering device 30, the tooth part 331 is formed at the edge position of the blocking piece 33, the blocking piece 33 is a first piece body 321 or a second piece body 322, and the blocking piece 33 is set into the first piece body 321 or the second piece body 322, so that the end part structure of the spike tooth covering device 30 is favorably ensured to be compact;

as shown in fig. 4;

preferably, the blade soil covering mechanism 40 further comprises a soil retaining member 43 for blocking the soil covering blades 42 from shifting splashed soil blocks, and the frame body 1 is fixedly connected with the soil retaining member 43 between the gutter pressing mechanism 20 and the blade soil covering mechanism 40. In the structure, the blade soil covering mechanism 40 effectively prevents soil blocks splashed when the soil covering blades 42 rotate from entering the area of the ditch pressing mechanism 20 through the soil retaining part 43, and further ensures the land smoothness of the sowing land blocks;

as shown in fig. 4;

preferably, the soil guard member 43 includes a fixing shaft 431 fixedly coupled with the frame body 1,

the fixed shaft 431 is fixedly connected with a baffle 432 with an arc structure corresponding to the position of the covering blades 42. The splashed soil blocks are effectively isolated by the baffle 432 with the arc-shaped structure, and the soil blocks can be far away from the area of the ditch pressing mechanism 20 along the baffle 432 with the arc-shaped structure;

in the technical scheme, the utility model provides a pair of direct seeder chassis of rice drought, the theory of operation:

referring to fig. 4, the chassis is driven by a traction machine to actively rotate a first furrow pressing wheel 23, a second furrow pressing wheel 24, a spike-tooth soil covering device 30 and a blade soil covering mechanism 40;

the soil covering blades 42 of the blade soil covering mechanism 40 roll to cover the flat tracks in front of the first furrow pressing wheel 23 to provide flat land blocks for the first furrow pressing wheel 23 and the second furrow pressing wheel 24;

the convex part 25 of the first furrow pressing wheel 23 rolls on the ground to press a shallow groove for shallow fertilization, and the sowing device places phosphate fertilizer in the groove;

the bulge 25 of the second ditching wheel 24 rolls and mixes the fertilizer and soil in the shallow fertilizing ditch groove pressed by the first ditching wheel 23 and presses out a ditch groove for sowing, and the sowing device places seeds in the ditch groove;

the tooth group 31 of the spike-tooth soil covering device 30 covers soil and level the grooves pressed by the first furrow pressing wheel 23 and the second furrow pressing wheel 24, meanwhile, a disc-shaped ditching sheet 32 fixedly connected with the spike-tooth soil covering device 30 rolls on the ground to press grooves for side deep fertilization, and a seeding device places nitrogenous fertilizer in the grooves;

has the advantages that:

1. the utility model relates to a paddy dry direct seeding machine chassis, it has increased blade earthing mechanism in the front of the mechanism of pressing furrow compared with the prior art, blade earthing mechanism stirs the soil of rut position through the rotation of earthing blade, realize providing the level land piece for the mechanism of pressing furrow, the depth of seed in the soil is unanimous when guaranteeing to sow, improve seed budding rate, regularity, finally realize the purpose of educating the form seedling, improve output, in addition, blade earthing mechanism is under the effect of traction machinery, blade earthing mechanism can drive the earthing blade to rotate voluntarily, guaranteed that the earthing blade is in the wet glutinous land piece, it can still rotate in a flexible way to loose the soil land piece;

2. the utility model discloses a direct seeder chassis in rice drought, blade earthing mechanism still are provided with and keep off the native part, keep off the native piece that flies to splash through fixed axle and baffle are kept apart effectively to the native piece can be followed the baffle of arc structure and kept away from the pressure ditch mechanism region, further guarantee seeding landmass soil planarization.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims (10)

1. A chassis of a dry direct seeding seeder for paddy rice comprises:

a frame body (1) detachably connected to a traction machine;

a furrowing mechanism (20) which is provided with a first furrowing wheel (23) for extruding a shallow fertilizing furrow and a second furrowing wheel (24) for extruding a seeding furrow which are sequentially and horizontally arranged at the lower part of the frame main body (1);

the spike-tooth soil covering device (30) is rotationally connected behind the second furrow pressing wheel (24), the spike-tooth soil covering device (30) is provided with a poking tooth group (31) for covering a flat groove and a ditching sheet (32) for ditching a deep fertilizing groove, and the spike-tooth soil covering device is characterized in that;

frame main part (1) are located blade earthing mechanism (40) are installed in first pressure ditch wheel (23) the place ahead, a plurality of earthing blades (42) are installed to blade earthing mechanism (40) corresponding traction machinery wheel position for cover flat rut land leveling piece.

2. The chassis of a rice dry direct seeding seeder according to claim 1, characterized in that;

the blade soil covering mechanism (40) comprises a main shaft (41) which is rotationally connected with the frame main body (1);

the main shaft (41) is provided with a plurality of groups of blade groups at intervals along the length direction, the adjacent two groups of blade groups are arranged in a staggered mode, each blade group comprises at least one soil covering blade (42), and therefore the main shaft (41) rotates, and soil is stirred by the soil covering blades (42) to level the land.

3. The chassis of a rice dry direct seeding planter according to claim 2 wherein;

the earthing blade (42) comprises a base (421) and a blade body (422);

the base (421) is far away from and the blade main body (422) can be detachably connected, and the end, far away from the blade main body (422), of the base (421) is fixedly connected with the spindle (41).

4. The chassis of the rice dry direct seeding sowing machine according to claim 3, wherein the chassis comprises a base plate and a base plate;

the blade main body (422) is of an L-shaped plate structure, and guide walls (423) of an arc structure are formed on the side edges of two sides of the vertical section and the horizontal section of the L-shaped plate structure.

5. The chassis of a rice dry direct seeding seeder according to claim 1, characterized in that;

the ditch pressing mechanism (20) is fixedly connected with the frame main body (1) through two mounting plates (21);

a rotating shaft (22) is arranged between the two mounting plates (21);

the rotating shaft (22) drives the first furrow pressing wheel (23), the second furrow pressing wheel (24), the spike tooth soil covering device (30) and the blade soil covering mechanism (40) to rotate actively through a chain and a chain wheel.

6. The chassis of the rice direct seeding dry land seeder according to claim 5, wherein;

two be located between mounting panel (21) first pressure ditch wheel (23), second pressure ditch wheel (24) rear all links firmly pipe (26) that are used for guiding fertilizer, the directional placement of seed on ground through the crossbeam.

7. The chassis of a rice dry direct seeding seeder according to claim 1, characterized in that;

the spike tooth soil covering device (30) is provided with a plurality of rows of poking tooth groups (31) covering flat grooves along the length direction;

the side part of the spike-tooth soil covering device (30) corresponding to the position of the first furrow pressing wheel (23) and the second furrow pressing wheel (24) for pressing out the furrows is fixedly connected with a disc-shaped furrowing blade (32) for digging out a deep fertilization furrow;

the poking tooth group (31) comprises a plurality of poking teeth, and the poking teeth are of a plate-shaped structure;

the ditching sheet (32) comprises a first sheet body (321) and a second sheet body (322);

the first sheet body (321) and the second sheet body (322) are symmetrically and fixedly connected and form a disc-shaped structure with the thickness of the middle part larger than that of the edge.

8. The chassis of a rice dry direct seeding sowing machine according to claim 7, wherein;

the two ends of the spike-tooth soil covering device (30) are fixedly connected with circular blocking pieces (33), the edge positions of the blocking pieces (33) are provided with tooth parts (331), and the blocking pieces (33) are first piece bodies (321) or second piece bodies (322).

9. The chassis of a rice dry direct seeding planter according to any one of claims 1-8, wherein the chassis comprises a base plate;

the blade soil covering mechanism (40) further comprises a soil retaining part (43) for blocking the soil covering blades (42) from stirring splashed soil blocks, and the frame body (1) is positioned between the ditch pressing mechanism (20) and the blade soil covering mechanism (40) and fixedly connected with the soil retaining part (43).

10. The chassis of a rice dry direct seeding planter according to claim 9 wherein;

the soil guard part (43) part comprises a fixed shaft (431) fixedly connected with the frame body (1);

the fixed shaft (431) is fixedly connected with a baffle (432) with an arc structure corresponding to the position of the soil covering blade (42).

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