CN118765602B - A sowing mechanism for a sowing machine - Google Patents

Abstract

The invention is suitable for the technical field of seeders, and provides a seeding mechanism for a seeder, which comprises a base arranged on the seeder, and a seeding assembly, wherein the seeding assembly comprises a plurality of seeding pipes arranged in the base, seed feeding pipes are respectively arranged in the seeding pipes in a rotating way, seed storage discs are respectively arranged at the top ends of the seed feeding pipes in a rotating way, a plurality of ground breaking parts are respectively arranged at the bottom ends of the seeding pipes in a rotating way, a poking plate is respectively arranged on the ground breaking parts, pushing parts are respectively arranged at the bottoms of the seed feeding pipes, lifting plates are respectively arranged in the sliding way in the base, threaded sleeves are respectively arranged at four corners of the lifting plates in a rotating way, threaded shafts are respectively connected with the threaded sleeves in a threaded way, clamping grooves are respectively arranged on the outer walls of the seeding pipes, a plurality of clamping plates are respectively arranged on the lifting plates in a sliding way, rotating shafts are respectively arranged on one sides of the clamping plates, and connecting rods are respectively arranged between the matching seats and the clamping plates in a rotating way. Therefore, the invention not only can automatically complete the conveying and releasing of seeds, but also can adjust the sowing depth, the sowing quantity and the sowing interval, and can reduce the manufacturing and using cost.

Description

Sowing mechanism for seeder

Technical Field

The invention relates to the technical field of seeders, in particular to a seeding mechanism for a seeder.

Background

The seeder is a device for realizing crop seeding by replacing manpower with machinery, greatly improves the efficiency of seeding operation and lightens the labor intensity of farmers.

In the prior art, a plurality of sowing devices exist, for example, a sowing device with a sowing depth adjusting function is disclosed as CN118216257A, and the sowing device comprises a bracket body and also comprises a sowing pipe, wherein a moving opening is arranged on the bracket body, the sowing pipe is connected with the moving opening in a sliding manner, the sowing device with the sowing depth adjusting function is manually operated, only the bracket body is manually operated, the sowing device is moved along the outer side of a bean groove to be planted, and when the sowing device is moved, only the umbilical part of a bean seed is manually moved downwards to a matching component, the depth of the bottom of the sowing pipe is detected by a detection component, so that the adjusting component is matched with the bottom of the sowing pipe to drive the bottom of the sowing pipe to move downwards, the bottom of the sowing pipe is deeply into soil, and the downward accurate sowing of the bean seed umbilical part is realized, but the sowing device is not provided with a structure for adjusting the sowing spacing of the seed, and has the inconvenience in use.

In summary, it is clear that the prior art has inconvenience and defects in practical use, so that improvement is needed.

Disclosure of Invention

In view of the above-mentioned drawbacks, an object of the present invention is to provide a sowing mechanism for a sowing machine, which can automatically complete the conveyance and release of seeds, can adjust the sowing depth, sowing number and sowing interval, and can reduce the manufacturing and use costs.

In order to achieve the purpose, the invention provides a sowing mechanism for a sowing machine, which comprises a base, wherein the base is arranged on the sowing machine, a sowing assembly comprises a sowing pipe and a seed feeding pipe, a plurality of sowing pipes are elastically connected in the base, the seed feeding pipes are rotatably arranged in the sowing pipes, seed storage discs are rotatably arranged at the top ends of the seed feeding pipes, a plurality of ground breaking pieces are rotatably arranged at the bottom ends of the sowing pipes, a poking plate is arranged on the ground breaking pieces, a pushing piece and a first circulating groove are arranged at the bottom of the seed feeding pipe, a lifting plate is slidably arranged in the base, threaded sleeves are rotatably arranged at four corners of the lifting plate, threaded shafts are fixedly arranged in the base in a threaded manner, clamping grooves are formed in the outer walls of the sowing pipes, a plurality of clamping plates are slidably arranged on the lifting plate, a rotating shaft is rotatably arranged on one side of the clamping plates, a matching seat and a second circulating groove are rotatably arranged in the rotating shaft, a plurality of connecting rods are rotatably arranged between the adjacent matching seat and the clamping plates, a regulating gear is arranged at the bottom, a lifting plate is rotatably arranged on one side of the adjusting gear, a driving shaft is rotatably arranged on the driving shaft, a plurality of driving shafts are rotatably arranged on the rotating shaft sleeve, a plurality of driving shafts are rotatably arranged on the driving shafts, a plurality of driving shafts are rotatably arranged on the rotating shafts, a rotating shaft sleeve and are rotatably arranged on the rotating shafts, a rotating shaft sleeve, and are rotatably arranged on a rotating shaft, and are rotatably provided, and are respectively, and are rotatably and rotatably provided.

According to the sowing mechanism for the sowing machine, the first extension shaft sleeve is arranged on the descending gear, the second extension shaft sleeve is arranged on the release gear, the first belt is arranged between the first extension shaft sleeve and the four thread sleeves, the second belt is arranged between the transmission shaft and the four thread sleeves, and the third belt is arranged between the second extension shaft sleeve and the plurality of switching shaft sleeves.

According to the sowing mechanism for the sowing machine, the fixed shaft is arranged beside the driven shaft, the mounting seat and the third circulating groove are arranged on the fixed shaft, the rotating shaft sleeve is rotationally arranged on the mounting seat, the outer rotating sleeve of the rotating shaft sleeve is provided with the outer sleeve shaft, the mounting seat is rotationally provided with the connecting shaft, the connecting shaft is rotationally connected with the driving gear, the mounting seat is provided with the driving piece, and the fourth belt is arranged among the output shaft of the driving piece, the outer sleeve shaft and the connecting shaft.

According to the sowing mechanism for the sowing machine, the positive ratchet wheel is arranged on the outer sleeve shaft, the positive pawl capable of rotating unidirectionally is arranged on the rotating shaft sleeve in a rotating mode, the reverse ratchet wheel is arranged on the driving gear, and the reverse pawl capable of rotating unidirectionally is arranged on the connecting shaft in a rotating mode.

According to the sowing mechanism for the sowing machine, torsional springs are arranged at the joints of the soil breaking pieces and the sowing pipes, when the torsional springs are in a natural state, the soil breaking pieces on the same sowing pipe are matched to form a cone with the downward tip, and the poking plates are all inclined upwards.

According to the sowing mechanism for the sowing machine, one side of the sliding plate is provided with the fixed plate connected with the lifting plate, and a plurality of second elastic pieces are arranged between the sliding plate and the fixed plate.

According to the sowing mechanism for the sowing machine, the electromagnets are in one-to-one correspondence with the movable racks, when the electromagnets apply repulsive force to the movable racks, the movable racks are meshed with the adjusting gears, and when the electromagnets apply attractive force to the movable racks, the movable racks are not meshed with the adjusting gears.

According to the sowing mechanism for the sowing machine, the switching shaft sleeves are all rotatably arranged on the support, and the support is connected with the lifting plate.

According to the sowing mechanism for the sowing machine, the seed storage disc is provided with the top hole, and the top end of the seed conveying pipe is provided with the bottom hole.

The invention aims to provide a sowing mechanism for a sowing machine, which has the following beneficial effects:

Through setting up seeding subassembly, can accomplish the transport and the release of seed voluntarily, can freely adjust the seeding degree of depth again, can also control the seed quantity of single seeding, enlarged the application scope of device.

Through setting up seeding subassembly, can adjust the seeding interval between the adjacent seed, further enlarged the application scope of device.

The invention can complete the transportation and release of seeds and the adjustment of sowing intervals by only one power source, thereby reducing the manufacturing and using cost.

In conclusion, the invention has the beneficial effects that the seed conveying and releasing can be automatically completed, the sowing depth, the sowing quantity and the sowing interval can be regulated, and the manufacturing and using cost can be reduced.

Drawings

Fig. 1 is a schematic view of the external structure of the present invention, fig. 2 is a front sectional view of the present invention, fig. 3 is an enlarged schematic view of a portion a of the structure of fig. 2, fig. 4 is an enlarged schematic view of a portion B of the structure of fig. 2, fig. 5 is a side sectional view of the present invention, fig. 6 is an enlarged schematic view of a portion C of the structure of fig. 5, fig. 7 is a bottom sectional view of the present invention, and fig. 8 is an enlarged schematic view of a portion D of the structure of fig. 7.

In the figure, 1-base, 2-seeding component, 21-seeding pipe, 211-seed feeding pipe, 212-seed storage disk, 213-ground breaking piece, 214-pulling plate, 215-pushing piece, 22-lifting plate, 221-rotating shaft, 222-matching seat, 223-adjusting gear, 224-sliding plate, 225-moving rack, 23-clamping plate, 231-connecting rod, 24-threaded sleeve, 241-threaded shaft, 25-driven shaft, 251-thickening gear, 252-descending gear, 253-ascending gear, 254-releasing gear, 26-transmission shaft, 261-transmission gear, 27-fixed shaft, 271-installation seat, 272-rotating shaft sleeve, 273-outer sleeve shaft, 274-connecting shaft, 275-driving gear, 28-driving piece, 29-switching shaft sleeve and 291-bracket.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

Referring to fig. 1-8, the invention provides a sowing mechanism for a sowing machine, which comprises a base 1 and a sowing component 2, wherein an accommodating cavity is arranged in the base 1, an opening is arranged at the top of the accommodating cavity, the sowing component 2 is arranged in the accommodating cavity, the base 1 is arranged on the sowing machine, the base 1 and the sowing component 2 are used for completing sowing work, the sowing machine is a mature prior art, and the structure of the sowing mechanism and the connection mode of the sowing machine and the base 1 are common knowledge of a person skilled in the art, and are not repeated in the invention.

Referring to fig. 1-8, the seeding assembly 2 comprises a seeding pipe 21 and a seed feeding pipe 211, a plurality of seeding pipes 21 are arranged in the accommodating cavity, a plurality of through holes are formed in the bottom surface of the accommodating cavity, the through holes are matched with the seeding pipes 21 in a one-to-one correspondence manner, the bottom ends of the seeding pipes 21 can penetrate out of the accommodating cavity at the through holes, fixing discs are arranged on the seeding pipes 21 in a rotating manner, and first elastic pieces are arranged between the fixing discs and the bottom surface of the accommodating cavity and can provide support for the seeding pipes 21. Seed feed tube 211 is rotationally arranged in seeding tube 21, seed feed tube 211 top is rotationally connected with seed storage tray 212 after penetrating out of seeding tube 21, seed storage tray 212 is connected with seed storage box (not shown in the figure) through elastic pipeline, seed can be conveyed into seed storage tray 212 by seed storage box, top hole is arranged on seed storage tray 212, separator plate is arranged at top end of seed feed tube 211, bottom hole is arranged on separator plate (top hole is not concentric with seed storage tray 212, bottom hole is not concentric with separator plate, and top hole can be matched with bottom hole), and when seed feed tube 211 rotates to top hole and bottom hole match, seed in seed storage tray 212 can fall into seed feed tube 211. The bottom end of the seeding pipe 21 is rotationally connected with a plurality of broken earth pieces 213, the joint of the broken earth pieces 213 and the seeding pipe 21 is provided with a torsion spring, when the torsion spring is in a natural state, the broken earth pieces 213 at the bottom end of the same seeding pipe 21 are folded and matched to form a cone with a downward tip, when the seeding pipe 21 moves downwards, the broken earth pieces 213 can assist the bottom end of the seeding pipe 21 to be inserted into soil, the top of the inner wall of the broken earth pieces 213 is provided with a poking plate 214, and when the torsion spring is in a natural state, the poking plate 214 is inclined upwards. The outer side of the bottom of the seed feeding tube 211 is provided with a pushing piece 215, the pushing piece 215 is slidably connected with the inner side wall of the seeding tube 21, the seed feeding tube 211 is provided with a first circulating groove matched with the pushing piece 215 (namely, the pushing piece 215 is provided with a matched hole for the seed feeding tube 211 to pass through, the inner side wall of the matched hole is provided with a guide post matched with the first circulating groove), when the seed feeding tube 211 rotates, the pushing piece 215 moves downwards, the poking plate 214 can drive the soil breaking pieces 213 to rotate by a certain angle with the connection part of the soil breaking pieces 213 and the seeding tube 21 as the center of a circle, and a plurality of soil breaking pieces 213 are separated from the matched state, so that seeds fall into soil.

Referring to fig. 1-8, a lifting plate 22 is slidably arranged in the accommodating cavity, threaded sleeves 24 are rotatably arranged at four corners of the top surface of the lifting plate 22, the threaded sleeves 24 are in threaded connection with threaded shafts 241 (the threaded sleeves 24 are in one-to-one correspondence with the threaded shafts 241), two ends of the threaded shafts 241 are fixedly connected with the top surface and the bottom surface of the accommodating cavity respectively, and when a plurality of threaded sleeves 24 synchronously rotate in a reciprocating mode, the lifting plate 22 can be driven to ascend or descend. The lifting plate 22 is provided with a plurality of avoidance holes, the avoidance holes are matched with the seeding pipes 21 in a one-to-one correspondence manner, clamping grooves are formed in the outer side wall of the seeding pipes 21, the top surface of the lifting plate 22 is slidably provided with clamping plates 23 corresponding to the clamping grooves in a one-to-one manner, one sides of the clamping plates 23 far away from the seeding pipes 21 are rotatably provided with rotating shafts 221, the rotating shafts 221 are rotatably connected with the lifting plate 22, the rotating shafts 221 are respectively provided with a matching seat 222, the surfaces of the rotating shafts 221 are provided with second circulating grooves matched with the matching seats 222 (the matching mode of the matching seats 222 and the second circulating grooves refers to the pushing piece 215 and the first circulating grooves), connecting rods 231 (namely one ends of the connecting rods 231 are rotatably connected with the matching seats 222, and the other ends of the connecting rods 231 are rotatably connected with the clamping plates 23) are rotatably arranged between the adjacent matching seats 222 and the clamping plates 23, and the lifting plate 22 can drive the seeding pipes 21 to synchronously reciprocate when the clamping plates 23 are matched with the clamping grooves. The bottom of the rotating shaft 221 is provided with an adjusting gear 223, one side of the rotating shaft 221 away from the seeding pipe 21 is provided with a sliding plate 224, the sliding plate 224 is in sliding connection with the top surface of the lifting plate 22, one side of the sliding plate 224 close to the rotating shaft 221 is provided with a plurality of moving racks 225, the moving racks 225 are in one-to-one correspondence with the adjusting gear 223, each moving rack 225 is provided with a plurality of inserted bars penetrating into the sliding plate 224, the sliding plate 224 is provided with a plurality of electromagnets (the moving racks 225 are made of magnetic materials) matched with the moving racks 225, when the electromagnets apply repulsive force to the moving racks 225, the moving racks 225 are meshed with the adjusting gear 223, and when the electromagnets apply attractive force to the moving racks 225, the moving racks 225 are not meshed with the adjusting gear 223.

Referring to fig. 1-8, a driven shaft 25 is rotatably arranged on one side, far away from the seeding tube 21, of the sliding plate 224, a thickened gear 251 is rotatably arranged at the bottom of the driven shaft 25, a fixed rack is arranged on one side, close to the driven shaft 25, of the sliding plate 224, the bottom of the thickened gear 251 is meshed with the fixed rack, a fixed plate is arranged on the lifting plate 22 on one side of the sliding plate 224, a plurality of second elastic pieces are arranged between the sliding plate 224 and the fixed plate, a descending gear 252, a lifting gear 253 and a release gear 254 are rotatably arranged on the driven shaft 25 above the thickened gear 251, a first extension shaft sleeve is arranged at the bottom of the descending gear 252, a second extension shaft sleeve is arranged at the bottom of the release gear 254, a transmission shaft 26 is rotatably arranged beside the driven shaft 25, the transmission shaft 26 is rotatably connected with the lifting plate 22, a transmission gear 261 meshed with the lifting gear 253 is arranged on the transmission shaft 26, a first belt is arranged between the first extension shaft sleeve and the four thread sleeves 24, and a second belt is arranged between the transmission shaft 26 and the four thread sleeves 24. The seed feeding tube 211 is provided with the switching shaft sleeve 29 in a sleeved mode on the outer surface, the top of the seed feeding tube 211 is provided with a top plate, the seed feeding tube 211 below the top plate is provided with a sliding key in a sliding sleeve mode, a third elastic piece is arranged between the adjacent top plate and the sliding key, the top end of the switching shaft sleeve 29 is provided with a spline, the bottom surface of the sliding key is provided with a key groove matched with the spline, when the seed feeding tube 211 descends along with the seeding tube 21, the spline is matched with the key groove, the switching shaft sleeve 29 can drive the seed feeding tube 211 to rotate at the moment, the switching shaft sleeve 29 is connected to the support 291 in a rotating mode, the support 291 is fixedly connected with the top surface of the lifting plate 22, and a third belt is arranged between the second extension shaft sleeve and the plurality of switching shaft sleeves 29.

Referring to fig. 1-8, a fixed shaft 27 is arranged beside a driven shaft 25, the fixed shaft 27 is fixedly connected to a lifting plate 22, a mounting seat 271 is arranged on the fixed shaft 27, a rotating shaft sleeve 272 is rotatably arranged on the mounting seat 271, the rotating shaft sleeve 272 is sleeved on the fixed shaft 27, a third circulation groove matched with the rotating shaft sleeve 272 is formed in the surface of the fixed shaft 27 (the matching mode of the rotating shaft sleeve 272 and the third circulation groove refers to a pushing piece 215 and a first circulation groove), an outer sleeve shaft 273 is rotatably sleeved outside the rotating shaft sleeve 272, a positive ratchet wheel is arranged on the outer sleeve shaft 273, the positive ratchet wheel, the outer sleeve shaft 273, the rotating shaft sleeve 272 and the fixed shaft 27 are concentric, a positive pawl capable of rotating unidirectionally is rotatably connected to the rotating shaft sleeve 272, and when the positive ratchet wheel is matched with the positive pawl, the outer sleeve shaft 273 can drive the rotating shaft sleeve 272 to rotate. The connecting shaft 274 is rotatably arranged on the mounting seat 271, the driving gear 275 is rotatably arranged on the connecting shaft 274, the driving gear 275 can be meshed with the thickening gear 251, the descending gear 252, the ascending gear 253 or the releasing gear 254, a reverse ratchet wheel (reverse ratchet wheel is opposite to the forward ratchet wheel) is arranged on the driving gear 275, the reverse ratchet wheel, the driving gear 275 and the connecting shaft 274 are concentric, the reverse pawl capable of rotating unidirectionally is rotatably arranged on the connecting shaft 274, when the reverse pawl is matched with the reverse ratchet wheel, the connecting shaft 274 can drive the driving gear 275 to rotate, the driving piece 28 is arranged on the mounting seat 271, and a fourth belt is arranged among an output shaft of the driving piece 28, an outer sleeve shaft 273 and the connecting shaft 274.

Referring to fig. 1 to 8, preferably, the belt transmission in the present invention may be replaced by a chain transmission, wherein the installation of the gears and the cooperation of the chain and the gears are conventional technical means for those skilled in the art, and the user may adjust the wrap angle of the belt (or chain) by setting the tensioning shaft, so as to ensure good transmission efficiency, which is also known in the prior art.

Referring to fig. 1-8, it is preferable that a plurality of telescopic shafts are disposed between the seed storage tray 212 and the lifting plate 22, each telescopic shaft comprises an inner shaft and an outer shaft, the inner shaft is arranged in the outer shaft in a penetrating manner, a fourth elastic piece is disposed between the inner shaft and the outer shaft, one end of each telescopic shaft is connected with the seed storage tray 212, the other end of each telescopic shaft is connected with the lifting plate 22, and the telescopic shafts can not only provide support for the seed storage tray 212, but also avoid the rotation of the seed storage tray 212.

Referring to fig. 1 to 8, it is preferable that the first elastic member, the second elastic member, the third elastic member, and the fourth elastic member are springs.

Referring to fig. 1 to 8, it is preferable that the seed feeding tube 211 is lowered by a small distance by adjusting the positions of the top plate and the sliding key and the length of the third elastic member to be engaged with the key groove (when the bottom end of the seeding tube 21 is located above the soil), and the spline is not engaged with the key groove when the first elastic member is in a natural state.

Referring to fig. 1-8, the driving member 28 is preferably a rotating electrical machine that is capable of providing sufficient power.

The invention is implemented in the following steps: when sowing is performed, the driving member 28 rotates forward, the positive ratchet wheel is matched with the positive pawl, the reverse ratchet wheel is not matched with the reverse pawl, the outer sleeve shaft 273 drives the rotating shaft sleeve 272 to rotate, the connecting shaft 274 cannot drive the driving gear 275 to rotate, under the matching effect of the rotating shaft sleeve 272 and the third circulating groove, the rotating shaft sleeve 272 drives the mounting seat 271 to ascend, the driving gear 275 is meshed with the descending gear 252, then the driving member 28 rotates reversely, the positive ratchet wheel is not matched with the positive pawl, the reverse ratchet wheel is matched with the reverse pawl, the rotating shaft sleeve 272 does not rotate, the driving gear 275 drives the descending gear 252 to rotate, the sowing pipe 21 and the seed feeding pipe 211 are lowered for a small distance, the bottom end of the sowing pipe 21 is not contacted with the ground, the spline is matched with the key groove, then the driving member 28 rotates forward, the mounting seat 271 moves to the driving gear 275 to be meshed with the release gear 254, the driving member 28 rotates reversely, the driving gear 275 drives the release gear 254 to rotate, under the action of the third belt, the plurality of switching shaft sleeves 29 drive the seed feeding tube 211 to rotate, when rotating until the top hole is matched with the bottom hole, seeds in the seed storage disc 212 fall into the seed feeding tube 211 and reach the bottom end of the seeding tube 21 (in the process, the pushing piece 215 is not matched with the poking plate 214, the soil breaking piece 213 is in a furled state), a user can control the quantity of the seeds falling into the seed feeding tube 211 by adjusting the matching time of the top hole and the bottom hole, then the driving piece 28 rotates positively, the mounting seat 271 descends to enable the driving gear 275 to be meshed with the descending gear 252, then the driving piece 28 rotates reversely, the driving gear 275 drives the descending gear 252 to rotate, under the action of the second belt, the four thread sleeves 24 rotate synchronously reversely, the lifting plate 22 drives the plurality of seeding tubes 21 to descend synchronously, and when the bottom end of the seeding tube 21 reaches a proper depth, the mounting seat 271 is lifted to enable the driving gear 275 to be meshed with the release gear 254, then the driving gear 275 rotates, under the action of the pushing piece 215 and the first circulation groove, the pushing piece 215 moves downwards and pushes the shifting plate 214 to enable the ground breaking piece 213 to rotate for a certain angle, seeds fall into soil, then the mounting seat 271 is lifted to enable the driving gear 275 to be meshed with the lifting gear 253, the driving gear 275 rotates, under the meshing action of the lifting gear 253 and the transmission gear 261, the four threaded sleeves 24 rotate positively, the lifting plate 22 drives the seeding pipes 21 to lift and reset, then the driving gear 275 is meshed with the release gear 254, and when the release gear 254 drives the switching shaft sleeves 29 to rotate, the pushing piece 215 is separated from the shifting plate 214 first, and the top hole is matched with the bottom hole.

The user can adjust the sowing space between adjacent seeds by controlling the idle of part of the sowing pipe 21, the adjusting process is that the driving piece 28 rotates positively, the mounting seat 271 descends to the point that the driving gear 275 is meshed with the top of the thickening gear 251, at the moment, part of the electromagnet applies repulsive force to the moving rack 225 to enable the moving rack 225 to be meshed with the adjusting gear 223, then the driving gear 275 rotates, under the meshing effect of the thickening gear 251 and the fixed rack, the sliding plate 224 moves to enable the rotating shaft 221 matched with the adjusting gear 223 to rotate, the matching seat 222 ascends, under the effect of the connecting rod 231, the clamping plate 23 is disengaged from the clamping groove, then the electromagnet applies attractive force to the moving rack 225, the moving rack 225 is disengaged from the adjusting gear 223, then the mounting seat 271 ascends, the driving gear 275 is disengaged from the thickening gear 251, under the effect of the second elastic piece, the sliding plate 224 automatically resets, at the moment, the sowing pipe 21 which is not matched with the clamping plate 23 is in an idle state, can not follow the lifting plate 22 to synchronously lift, when the sowing pipe 21 is in the idle state, the spline on the switching sleeve 29 matched with the sowing pipe is not matched with the sliding sleeve is not matched with the key groove on the sliding sleeve 29, and the spline on the switching sleeve 29 can not synchronously rotate to drive the sowing pipe 211. (for example, the invention includes 9 seeding pipes 21, the seeding pipes 21 are numbered sequentially, 1 to 9 respectively, the seeding pipes 21 of 1 to 9 are all in working state in normal use, and if the seeding distance between adjacent seeds needs to be increased, the seeding pipes 21 of 2,4, 6 and 8 are operated in idle state).

As another use method of the invention, a user can additionally install a plurality of furrow openers (the furrow openers are in one-to-one correspondence with the sowing pipes 21) on the bottom surface of the base 1, the furrow openers are in elastic connection with the base 1, the sowing pipes 21 can drive the furrow openers to descend, the furrow opener can adjust the furrow opening depth without obstructing the rotation of the soil breaking pieces 213, the soil entering depth at the bottom end of the sowing pipes 21 is firstly adjusted, the furrow openers can open the furrow of soil when the sowing machine advances, at the moment, the driving gear 275 and the release gear 254 are always in a meshed state, the driving gear 275 drives the release gear 254 to rotate at a certain speed, continuous sowing is realized, and seeds fall into soil furrows opened by the furrow openers.

The user can add the sensing element on the mounting seat 271, detect the rotation angle of the driving gear 275 through the sensing element, and adjust in time, so as to avoid the interference between the driving gear 275 and the thickening gear 251, the descending gear 252, the ascending gear 253 or the releasing gear 254 when the driving gear 275 moves up and down along with the mounting seat 271.

The invention provides a sowing mechanism for a sowing machine, which has the following beneficial effects:

Through setting up seeding subassembly, can accomplish the transport and the release of seed voluntarily, can freely adjust the seeding degree of depth again, can also control the seed quantity of single seeding, enlarged the application scope of device.

Through setting up seeding subassembly, can adjust the seeding interval between the adjacent seed, further enlarged the application scope of device.

The invention can complete the transportation and release of seeds and the adjustment of sowing intervals by only one power source, thereby reducing the manufacturing and using cost.

In conclusion, the invention has the beneficial effects that the seed conveying and releasing can be automatically completed, the sowing depth, the sowing quantity and the sowing interval can be regulated, and the manufacturing and using cost can be reduced.

There are, of course, many embodiments of the invention that will be apparent to those skilled in the art in light of this disclosure and that will be within the spirit and scope of the invention as defined in the following claims.

Claims (5)

1. A sowing mechanism for a sowing machine, characterized by comprising: A base, which is mounted on the planter; A sowing assembly comprises a sowing tube and a seed delivery tube, wherein a plurality of sowing tubes are elastically connected in the base, a seed delivery tube is rotatably provided in the sowing tube, a seed storage disk is rotatably provided at the top of the seed delivery tube, a plurality of soil-breaking parts are rotatably provided at the bottom end of the sowing tube, a paddle is provided on the soil-breaking part, a pushing part and a first circulation groove are provided at the bottom of the seed delivery tube, a lifting plate is slidably provided in the base, threaded sleeves are rotatably provided at the four corners of the lifting plate, the threaded sleeves are threadedly connected and fixedly provided in the base, a clamping groove is provided on the outer wall of the sowing tube, a plurality of clamping plates are slidably provided on the lifting plate, a rotating shaft is rotatably provided on one side of the clamping plate, a matching seat and a second circulation groove are provided on the rotating shaft The gears are connected to each other with a plurality of gears, and the plurality of gears are connected to each other with a plurality of gears, and the plurality of gears are connected to each other with a plurality of gears. The descending gear is provided with a first extension sleeve, the releasing gear is provided with a second extension sleeve, a first belt is provided between the first extension sleeve and the four threaded sleeves, a second belt is provided between the transmission shaft and the four threaded sleeves, and a third belt is provided between the second extension sleeve and the plurality of switching sleeves; A fixed shaft is provided beside the driven shaft, a mounting seat and a third circulation groove are provided on the fixed shaft, a rotating sleeve is rotatably provided on the mounting seat, an outer sleeve is provided on the rotating sleeve, a connecting shaft is rotatably provided on the mounting seat, a driving gear is rotatably connected to the connecting shaft, a driving member is provided on the mounting seat, and a fourth belt is provided between the output shaft of the driving member, the outer sleeve and the connecting shaft; The outer sleeve shaft is provided with a positive ratchet, the rotating sleeve is provided with a positive ratchet that can rotate in one direction, the driving gear is provided with a reverse ratchet, and the connecting shaft is provided with a reverse ratchet that can rotate in one direction; The electromagnets are matched with the moving racks in a one-to-one correspondence. When the electromagnets apply a repulsive force to the moving racks, the moving racks are meshed with the adjusting gears. When the electromagnets apply an attractive force to the moving racks, the moving racks are not meshed with the adjusting gears. 2. The sowing mechanism for a seed drill according to claim 1 is characterized in that a torsion spring is provided at the connection between the soil-breaking piece and the sowing tube. When the torsion spring is in a natural state, several soil-breaking pieces on the same sowing tube cooperate to form a cone with the tip pointing downward, and the shifting plates are all inclined upward. 3. The sowing mechanism for a seed drill according to claim 1 is characterized in that a fixed plate connected to the lifting plate is provided on one side of the sliding plate, and a plurality of second elastic members are provided between the sliding plate and the fixed plate. 4. The sowing mechanism for a seed drill according to claim 1 is characterized in that the switching sleeves are rotatably mounted on a bracket, and the bracket is connected to a lifting plate. 5. The sowing mechanism for a seeder according to claim 1, characterized in that a top hole is provided on the seed storage tray, and a bottom hole is provided at the top end of the seed delivery tube.