CN-120077816-B - Be fit for wheat test district seeder

CN120077816BCN 120077816 BCN120077816 BCN 120077816BCN-120077816-B

Abstract

The invention discloses a sowing device suitable for a wheat test plot, which comprises a connecting component, wherein the connecting component comprises a connecting bracket with an opening in the front-rear direction, a supporting bracket is fixed in the opening of the connecting bracket, a supporting plate is fixedly connected to the lower side of the supporting bracket, the sowing component comprises m lifting screw rods which are rotatably connected between the upper end of the supporting bracket and the lower end of the connecting bracket, lifting plates are connected to the lifting screw rods in a threaded manner, m+n groups of sowing units are arranged on the connecting bracket, each sowing unit comprises a plurality of sowing devices which are arranged on the upper side of the supporting bracket and are fixed at the lower end of the connecting bracket, a seed guiding sleeve which downwards extends out of the supporting bracket is fixed on the lower side of each sowing device, a plurality of sowing tubes which can be lifted are connected to the seed guiding sleeve in a sliding manner, when the lifting plates move downwards, the sowing devices move upwards, and when the lifting plates move upwards, the sowing devices do not move. When the invention is used for sowing, the sowing frame does not need to be lifted and pressed down, and the sowing operation can be completed by only one person, so that the labor intensity is reduced.

Inventors

ZHAO CAN
LIANG XINGYI
HUO ZHONGYANG
WANG WEILING
DAI QIGEN
XU KE
GAO HUI
WEI HAIYAN
ZHANG HONGCHENG

Assignees

扬州大学

Dates

Publication Date: 20260512
Application Date: 20250429

Claims (7)

1. A sowing device suitable for wheat test cells is characterized by comprising, The connecting assembly comprises a connecting bracket with an opening in the front-rear direction, wherein a supporting bracket is fixedly connected in the opening of the connecting bracket, and a supporting plate is fixedly connected on the lower side of the supporting bracket; The seeding assembly comprises m lifting screw rods which are rotationally connected between the upper end of the supporting bracket and the lower end of the connecting bracket and are vertically arranged, lifting plates are connected to the lifting screw rods in a threaded manner, m+n groups of seeding units are arranged on the connecting bracket, each seeding unit comprises a plurality of seeding units which are arranged on the upper side of the supporting bracket and are fixedly connected to the lower end of the connecting bracket, m is an integer not smaller than 2, the lower side of each seeding unit is fixedly connected with a seed guiding sleeve which downwards extends out of the supporting bracket, the connecting bracket is connected with a seed discharging pipe which can be lifted, the upper parts of the seed discharging pipes are slidably connected to the seed guiding sleeves, the lifting plates are connected with the plurality of seed discharging pipes, when the lifting plates move downwards, the seeding units do not move upwards, at least one rotating screw sleeve is rotationally connected between the lower ends of the supporting plate and the connecting bracket, the periphery of each rotating screw sleeve is provided with a spiral groove, and the periphery of each seeding pipe is connected with a transmission column which is inserted in the spiral groove and can slide along the spiral groove; Seed metering drive assembly of a plurality of and rotation swivel nut one-to-one, seed metering drive assembly is including connecting the seed metering drive sleeve in the backup pad, at least two sliding holes have been arranged in the seed metering drive sleeve, seed metering drive sleeve has the pawl through sliding hole sliding connection, and the upper portion of rotating the swivel nut is connected with the ratchet, and a plurality of drive teeth have been arranged to the ratchet periphery, in the clearance between any two drive teeth of ratchet periphery can be pegged graft to the pawl, seed metering drive sleeve's outside fixedly connected with rotates the seed metering drive ring of connection in the backup pad, the one end that the ratchet was kept away from to the pawl is connected with reset spring, reset spring keeps away from the one end of pawl and connects on seed metering drive ring inner wall.
2. The wheat test plot seeding apparatus according to claim 1, wherein the inner end of the pawl is provided with a transmission surface which is obliquely arranged and can be attached to the outer side of the transmission gear, when the outer side of the ratchet wheel is attached to the transmission surface for rotation, the pawl moves away from the ratchet wheel, the reset spring is further compressed, and when the ratchet wheel is reversely rotated, the ratchet wheel drives the pawl to rotate.
3. The device for sowing the wheat test plot according to claim 1, wherein a plurality of connecting blocks are arranged on the upper sides of two seed sowing transmission sleeves at the leftmost end and the rightmost end, a driving bevel gear sleeved on a seed sowing pipe is fixedly connected on the upper sides of the connecting blocks, each seed sowing device of each seed sowing unit shares a seed sowing shaft, the driving bevel gear is in transmission connection with the seed sowing shaft, when the lifting screw rod descends, the rotating screw sleeve drives the seed sowing transmission sleeve to rotate through a ratchet wheel, and when the lifting screw rod ascends, the seed sowing transmission sleeve does not move.
4. The wheat test plot seeding apparatus according to any one of claims 1 to 3, wherein a plurality of lifting motors corresponding to the lifting screw rods one by one are fixedly connected to the upper side of the connecting bracket, an output shaft is connected to the lifting motor, and the output shaft is connected with the lifting screw rods.
5. The wheat test plot seeding apparatus according to claim 3, further comprising two power transmission assemblies respectively arranged at the left end and the right end of the connecting bracket, wherein the power transmission assemblies comprise a transmission shaft rotatably connected to the supporting bracket, the transmission shaft is connected with a rotating bevel gear matched with a lower transmission wheel and a driving bevel gear, a seeding shaft above the driving bevel gear is connected with a driven wheel, and the lower transmission wheel is connected with the driven wheel through a first transmission belt.
6. The device for sowing the wheat test plot according to any one of claims 1-3, wherein two lifting screw rods are arranged, a first upper supporting seat and a second upper supporting seat which are arranged at intervals in the left-right direction are fixedly connected to the upper side of the supporting bracket, a first rotating shaft and a second rotating shaft are respectively connected to the first upper supporting seat and the second upper supporting seat in a rotating mode, a first transmission bevel gear is connected to a seed sowing shaft right above the transmission bevel gear, a first driving wheel and a first driven bevel gear meshed with the first transmission bevel gear are connected to the first rotating shaft, a second driven bevel gear is connected to a seed sowing shaft between the two lifting screw rods, a second transmission bevel gear and a second driving wheel are connected to the second rotating shaft, and the first driving wheel is connected to the second driving wheel through a second driving belt.
7. The wheat test plot seeding apparatus according to any one of claims 1 to 3, wherein the outer circumference of the seeding pipe below the seed guiding sleeve is fixed with a connecting part, the number of the lifting plates is 2, the two lifting plates are respectively sleeved on the seeding pipes on the upper side and the lower side of the connecting part, and the two lifting plates are fixedly connected.

Description

Be fit for wheat test district seeder Technical Field The invention relates to the technical field of agricultural machinery, in particular to a sowing device suitable for wheat test communities. Background In agricultural scientific experiments, crop plants are generally planted in units of cells. Before sowing in a district, a plurality of seed groove units are firstly formed in the district field at intervals in the width direction, each seed groove unit consists of a plurality of strip-shaped seed grooves which are arranged at intervals in the length direction, when ditching is carried out, small ridges are formed in the field between adjacent seed grooves in the length direction, and the width direction is perpendicular to the length direction. In the prior art, a test plot seeding device is used for seeding, the test plot seeding device comprises a seeding frame which can be held by hand, the upper end of the seeding frame is fixedly connected with a seed sowing device, the lower end of the seeding frame is fixedly connected with a plurality of seed falling pipes which are arranged at intervals in the width direction, a plurality of connecting pipes are arranged at the bottom end of the seed sowing device, the connecting pipes are connected with the corresponding seed falling pipes, when the test plot seeding device is used for seeding, one person holds the seeding frame to walk in the plot along the length direction, when walking on a small ridge in front of the strip-shaped seed trenches, the seeding frame is stopped, the seeding frame is put down and lightly pressed to the ground, the other person pours a proper amount of seeds into a seed inlet of the seed sowing device, the seeds are discharged along each connecting pipe under the action of the seed sowing device, the seeds falling into the corresponding seed falling pipes are arranged in the corresponding strip-shaped seed trenches, the seeding frame is lifted up again to cross the next small ridge, the seeding steps are circulated, and the seeding steps are performed, so that the seeding of the strip-shaped seed trenches is realized. Disclosure of Invention This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application. The present invention has been made in view of the above-mentioned and/or existing problems occurring in cell seeding. The invention solves the problems that in the prior art, a seeding frame needs to be lifted and pressed down circularly to stably seed a district, the operation is troublesome, the operation intensity is high, when the invention is implemented, a connecting bracket is arranged on a frame of a small handcart, the handcart is pushed to walk in the district, a lifting screw rod is controlled to rotate to enable a seed sowing pipe to move downwards when the seed is sown, a seed sowing device acts, seeds fall along a seed guiding sleeve and the seed sowing pipe, the seeding operation of one seed ditch unit is finished, the lifting screw rod reversely rotates, the seed sowing pipe moves away from a small ridge, the small handcart is pushed forward to the next seed ditch unit, the steps are circulated, the seeding of each seed ditch unit can be realized sequentially, the lifting and pressing down of the seeding frame is not needed, the seeding operation can be completed by one person, and the labor intensity is reduced. In order to solve the technical problems, the invention provides a technical scheme that the sowing device suitable for the wheat test plot comprises, The connecting assembly comprises a connecting bracket with an opening in the front-rear direction, wherein a supporting bracket is fixedly connected in the opening of the connecting bracket, and a supporting plate is fixedly connected on the lower side of the supporting bracket; The seeding assembly comprises m lifting screw rods which are connected between the upper end of the supporting bracket and the lower end of the connecting bracket in a rotating way and are vertically arranged, lifting plates are connected to the lifting screw rods in a threaded way, m+n groups of seed sowing units are arranged on the connecting bracket, each seed sowing unit comprises a plurality of seed sowing devices which are arranged on the upper side of the supporting bracket and are fixedly connected to the lower end of the connecting bracket, m is an integer not smaller than 2, seed sowing devices are fixedly connected with seed guiding sleeves which downwards extend out of the supporting bracket, seed sowing tubes capable of lifting are connected to the connecting bracket, the upper parts of the seed sowing tubes are slidably connected to the seed guiding sleeves, the lifting plates are connecte