A self-propelled seeder

Abstract

The application relates to a self-propelled seeder, belonging to the technical field of agricultural machinery, which comprises a frame, a driving element and a seed sowing device arranged on the frame, the output end of the driving element is sequentially in transmission connection with the roller shaft of a smoothing roller and the roller shaft of a covering roller, the roller shaft of the covering roller is in transmission connection with a seed sowing shaft, the seed sowing device comprises a shell and a seed sowing assembly rotating relative to the shell, the seed sowing assembly is arranged on a seed sowing transmission shaft, and the seed sowing transmission shaft is in transmission connection with the seed sowing shaft; a furrowing share and a covering share are arranged on the frame and located between the smoothing roller and the covering roller, the spacing of the furrowing share and the covering share with the frame in the vertical direction is adjustable, the seed sowing assembly realizes seeding in the rotating process, the seed sowing device does not need to be communicated with an air pump and does not need to pay attention to the air pump pressure in real time, meanwhile, the phenomenon of one pit with multiple seedlings can be avoided, the seeding uniformity is improved, in addition, the furrowing depth can be adjusted according to the soil moisture content, and the seeding depth consistency is ensured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of agricultural machinery, in particular to a self-propelled seeding machine. BACKGROUND

[0002] In China, as an economic crop, vegetables are in the second important position next to grain. The vegetable planting mode has been mainly artificial, which costs high and wastes a lot of manpower, material resources and financial resources. In order to reduce production cost, improve production efficiency, improve the quality and yield of vegetable seeding operation, in recent years, the vegetable seeding machine has been widely used. However, the seed metering device of the existing vegetable seeding machine mostly adopts the air suction type seed metering device, which needs to pay attention to the air pump pressure in real time, and has the disadvantages of uneven seedling distribution, difficult seed quantity control and the like. Meanwhile, due to the inconsistent soil moisture conditions, the cutting depth of the furrow opener is inconsistent, which leads to the inconsistent seeding depth. SUMMARY

[0003] In view of the deficiencies of the prior art and in order to solve the above problems, the present application provides a self-propelled seeding machine.

[0004] To achieve the above object, the present application provides the following technical scheme:

[0005] A self-propelled seeding machine comprises a frame, a drive element and a seed metering device arranged on the frame, the output end of the drive element is in turn in transmission connection with the roller shaft of a smoothing roller and the roller shaft of a covering roller, the roller shaft of the covering roller is in transmission connection with a seed metering shaft, the seed metering device comprises a housing and a seed metering assembly rotating relative to the housing, the seed metering assembly is arranged on a seed metering transmission shaft, and the seed metering transmission shaft is in transmission connection with the seed metering shaft.

[0006] A furrow plowshare and a covering plowshare are arranged on the frame and located between the smoothing roller and the covering roller, and the spacing between the furrow plowshare, the covering plowshare and the frame in the vertical direction is adjustable.

[0007] The technical scheme is further provided that the power output end of the drive element is in transmission connection with the power input end of a first transmission mechanism, the power output end of the first transmission mechanism is in transmission connection with the power input end of a gearbox, and the power output end of the gearbox is in transmission connection with the roller shaft of the smoothing roller and the roller shaft of the covering roller.

[0008] The technical scheme is further provided that the other end of the roller shaft of the covering roller is in transmission connection with the power input end of a speed regulator through a second transmission mechanism, the power output end of the speed regulator is in transmission connection with the seed metering shaft through a third transmission mechanism, and the seed metering shaft is in transmission connection with the seed metering transmission shaft through a fourth transmission mechanism.

[0009] The first transmission mechanism, the second transmission mechanism and the third transmission mechanism are provided with a tensioning wheel, the tensioning wheel is rotatably arranged at one end of a tensioning swing arm, and the other end of the tensioning swing arm is connected with the rack through a first locking bolt.

[0010] The shell comprises a rear shell and a front shell which are detachably connected, a cavity is formed between the rear shell and the front shell, the front shell is of a transparent structure, an inlet is arranged on the front shell, and a seed outlet is arranged on the rear shell.

[0011] The shell comprises a rear shell and a front shell which are detachably connected, a cavity is formed between the rear shell and the front shell, the front shell is of a transparent structure, an inlet is arranged on the front shell, and a seed outlet is arranged on the rear shell.

[0012] The shell comprises a rear shell and a front shell which are detachably connected, a cavity is formed between the rear shell and the front shell, the front shell is of a transparent structure, an inlet is arranged on the front shell, and a seed outlet is arranged on the rear shell.

[0013] The shell comprises a rear shell and a front shell which are detachably connected, a cavity is formed between the rear shell and the front shell, the front shell is of a transparent structure, an inlet is arranged on the front shell, and a seed outlet is arranged on the rear shell.

[0014] The shell comprises a rear shell and a front shell which are detachably connected, a cavity is formed between the rear shell and the front shell, the front shell is of a transparent structure, an inlet is arranged on the front shell, and a seed outlet is arranged on the rear shell.

[0015] The shell comprises a rear shell and a front shell which are detachably connected, a cavity is formed between the rear shell and the front shell, the front shell is of a transparent structure, an inlet is arranged on the front shell, and a seed outlet is arranged on the rear shell.

[0016] The shell comprises a rear shell and a front shell which are detachably connected, a cavity is formed between the rear shell and the front shell, the front shell is of a transparent structure, an inlet is arranged on the front shell, and a seed outlet is arranged on the rear shell.

[0017] 1、The seed sowing assembly realizes sowing in the rotating process, and the seed sowing device does not need to be connected with the air pump and does not need to be real-time concerned with the air pump pressure.

[0018] 2. The seed introduction wheel and the seed metering wheel rotate synchronously. When the seed introduction trough transports the seeds to the seed passing trough, the seeds will automatically slide into the seed metering trough. The seed metering trough transports the seeds to the seed metering outlet, avoiding the grinding of the seeds. At the same time, the inclined trough can prevent the seed introduction trough from carrying too many seeds into the seed passing trough, avoiding the phenomenon of multiple seedlings in one hole and improving the uniformity of sowing.

[0019] 3. Under the tension of the spring, the lower frame supports the seed recycling bin, and the upper frame is engaged with the seed recycling bin. Under the action of the air pump, the remaining seeds in the seed metering device enter the seed recycling bin through the seed suction port and the second pipeline, realizing seed cleaning. This not only prevents seed mixing but also collects the remaining seeds in the seed recycling bin, thus avoiding waste of the remaining seeds.

[0020] 4. Through the first, second, third, fourth, fifth, and sixth transmission mechanisms, a smooth, step-by-step transmission and acceleration are achieved, reducing fuel consumption of the drive components and increasing the speed of the air pump, gearbox, and speed governor. This effectively solves the problem of insufficient speed of the air pump, gearbox, and speed governor due to excessive instantaneous resistance or idling of the drive components, which prevents them from working properly.

[0021] 5. The vertical spacing between the furrowing plowshare, the covering plowshare, and the machine frame is adjustable, allowing for adjustment of the furrowing depth according to soil moisture conditions to ensure consistent sowing depth. Attached Figure Description

[0022] Figure 1 This is an isometric view of the overall structure of the self-propelled seeder used in an embodiment of the present invention;

[0023] Figure 2 This is a rear view of the overall structure of the self-propelled seeder used in an embodiment of the present invention;

[0024] Figure 3 yes Figure 2 Partial schematic diagram at point A in the middle;

[0025] Figure 4 This is an exploded view of the seed metering device used in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the seed introduction trough and inclined trough used in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the seed metering trough used in an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the seed recycling bin used in an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the assembly of the drive element, gearbox, and air pump used in the embodiments of the present invention.

[0030] In the drawings: 1-frame, 2-driving element, 3-smoothing roller, 4-earthing roller, 5-seed hopper, 6-seed metering device, 7-seed recovery bucket, 8-gearbox, 9-first transmission mechanism, 10-second transmission belt, 11-first transmission belt, 12-tensioning wheel, 13-tensioning swing arm, 14-second transmission mechanism, 15-third transmission mechanism, 16-speed regulator, 17-opening plough share, 18-earthing plough share, 19-fixed pipe, 20-connecting pipe, 21-upper frame body, 22-lower frame body, 23-first pipe, 24-second pipe, 25-fifth transmission mechanism, 26-transmission shaft, 27-sixth transmission mechanism, 28-air pump;

[0031] 601-rear housing, 602-front housing, 603-seed inlet channel, 604-seed suction port, 605-baffle, 606-seed guiding wheel, 607-seed passing plate, 608-seed metering wheel, 609-seed metering transmission shaft, 610-seed guiding groove, 611-inclined groove, 612-seed metering groove, 613-seed passing groove. DETAILED DESCRIPTION

[0032] In order to make the personnel in the art better understand the technical solutions of the present application, the technical solutions of the present application are described clearly and completely below in combination with the drawings of the present application. Based on the embodiments in the present application, other similar embodiments obtained by the personnel in the art without making creative efforts should all belong to the scope of protection of the present application. In addition, the direction words mentioned in the following embodiments, such as “upper”, “lower”, “left”, “right” and the like are only the directions of the drawings, therefore, the direction words used are used for illustration and not for limiting the present application.

[0033] Embodiment one:

[0034] As shown in Figure 1 , Figure 2 , a self-propelled seeding machine comprises a frame 1, the frame 1 is provided with a driving element 2 and a seed metering device 6, the output end of the driving element 2 is sequentially in transmission connection with the roller shaft of a smoothing roller 3 and the roller shaft of an earthing roller 4, the roller shaft of the earthing roller 4 is in transmission connection with a seed metering shaft, and at the same time, the frame 1 is provided with an auxiliary wheel.

[0035] It should be noted that after the driving element 2 operates, both seeding, earthing and the like operations and self-walking can be realized.

[0036] The technical solution is further provided that the power output end of the driving element 2 is in transmission connection with the power input end of a first transmission mechanism 9, the power output end of the first transmission mechanism 9 is in transmission connection with the power input end of a gearbox 8, and the power output end of the gearbox 8 is respectively in transmission connection with the roller shaft of the smoothing roller 3 and the roller shaft of the earthing roller 4.

[0037] Specifically, the power output end of the gearbox 8 is connected to the roller shaft of the leveling roller 3 via the first transmission belt 11, and the power output end of the gearbox 8 is connected to the roller shaft of the covering roller 4 via the second transmission belt 10.

[0038] The technical solution is further configured such that the other end of the roller shaft of the soil covering roller 4 is connected to the power input end of the speed regulator 16 through the second transmission mechanism 14, the power output end of the speed regulator 16 is connected to the seed metering shaft through the third transmission mechanism 15, and the seed metering shaft is connected to the seed metering transmission shaft through the fourth transmission mechanism.

[0039] It should be noted that the speed of the seeding drive shaft can be adjusted by the speed controller 16 to meet different plant spacing requirements.

[0040] The technical solution is further configured such that tensioning wheels 12 are provided at the first transmission mechanism 9, the second transmission mechanism 14 and the third transmission mechanism 15. The tensioning wheels 12 are rotatably disposed at one end of the tensioning swing arm 13, and the other end of the tensioning swing arm 13 is connected to the frame 1 by a first locking bolt.

[0041] It should be noted that the first transmission mechanism 9 adopts a synchronous belt structure, while the second transmission mechanism 14, the third transmission mechanism 15, and the fourth transmission mechanism all adopt a chain structure. The wheel surface of the tensioning wheel 12 is tangent to the synchronous belt or chain. The relative angle between the tensioning swing arm 13 and the frame 1 is adjusted by the first locking bolt, thereby adjusting the position of the tensioning wheel 12. In other words, the tensioning wheel 12 can adjust the degree of pressure on the synchronous belt or chain as needed to prevent the synchronous belt or chain from loosening, and can achieve real-time tension adjustment.

[0042] like Figures 4-6 As shown, the seed metering device 6 includes a housing and a seed metering assembly that rotates relative to the housing. The seed metering assembly is disposed on a seed metering drive shaft 609, and the seed metering drive shaft 609 is connected to the seed metering shaft in a driving connection.

[0043] The technical solution is further configured such that the housing includes a detachably connected rear housing 601 and a front housing 602, a cavity is formed between the rear housing 601 and the front housing 602, the front housing 602 has a transparent structure and is provided with a seed inlet, the rear housing 601 is provided with a seed outlet, and the seed outlet assembly is rotatably disposed in the cavity.

[0044] The technical solution is further configured such that a seed storage cavity is formed between the seed metering component and the front housing 602, the seed storage cavity is connected to the seed inlet, and the seed inlet is connected to the seed hopper 5 through the seed inlet channel 603.

[0045] It should be noted that the front shell 602 adopts a transparent structure, facilitating observation of the seed storage cavity, and the seed inlet is provided with a baffle 605 movable along the vertical direction, which can shield part of the seed inlet to adjust the amount of seeds.

[0046] The technical scheme is further provided that the seed sowing assembly comprises a seed guiding wheel 606 and a seed sowing wheel 608, and a seed overflow plate 607 is arranged between the seed guiding wheel 606 and the seed sowing wheel 608, the seed overflow plate 607 is connected with the rear shell 601, an arc-shaped seed overflow groove 613 is arranged on the seed overflow plate 607, a plurality of seed sowing grooves 612 are arranged on the circumferential edge of the seed sowing wheel 608, a plurality of seed guiding grooves 610 corresponding to the seed sowing grooves 612 are arranged on the circumferential edge of the seed guiding wheel 606, and an inclined groove 611 is arranged at the seed guiding groove 610, the inclined groove 611 is inclined towards the center of the seed guiding wheel 606.

[0047] It should be noted that the seed overflow plate 607 blocks the seeds in the seed storage cavity to prevent the seeds from leaking out. The seed guiding wheel 606 and the seed sowing wheel 608 rotate synchronously, when the seeds are transported to the seed overflow groove 613 by the seed guiding groove 610, the seeds will automatically fall into the seed sowing groove 612, the seed sowing groove 612 transports the seeds to the seed sowing port, avoiding the grinding of the seeds, and the inclined groove 611 arranged at the seed guiding groove 610 is inclined towards the center of the seed guiding wheel 606, which can prevent the seed guiding groove 610 from carrying too many seeds into the seed overflow groove 613, avoiding the phenomenon of one pit with multiple seedlings, and improving the uniformity of sowing.

[0048] As shown in Figure 1 , Figure 2 , Figure 7 and Figure 8 , the rack 1 is further provided with an air pump 28 and a seed recovery barrel 7, the seed recovery barrel 7 is in communication with the air suction port of the air pump 28 through a first pipeline 23, and the seed recovery barrel 7 is in communication with the seed suction port 604 on the front shell 602 through a second pipeline 24, the seed suction port 604 is in communication with the seed storage cavity.

[0049] Specifically, the power output end of the driving element 2 is connected with a transmission shaft 26 through a fifth transmission mechanism 25, and the transmission shaft 26 is in transmission connection with the air pump 28 through a sixth transmission mechanism 27.

[0050] In operation, under the action of the air pump 28, the remaining seeds in the seed sowing device 6 enter the seed recovery barrel 7 through the seed suction port 604 and the first pipeline 23, achieving seed cleaning, which can not only realize non-mixed sowing, but also collect the remaining seeds in the seed recovery barrel 7, without wasting the remaining seeds.

[0051] The technical scheme is further provided that the seed recovery barrel 7 is detachably arranged between the upper shelf body 21 and the lower shelf body 22, the upper shelf body 21 is buckled with the seed recovery barrel 7, and a plurality of spaced-apart tension springs are arranged between the upper shelf body 21 and the lower shelf body 22.

[0052] It should be noted that under the action of the tension of the tension spring, the lower shelf body 22 supports the seed recovery barrel 7, the upper shelf body 21 is buckled with the seed recovery barrel 7, and at the same time, there are apertures between adjacent tension springs, which facilitate the installation or removal of the seed recovery barrel 7 from the apertures between adjacent tension springs to take out the remaining seeds recovered in the seed recovery barrel 7. Preferably, the seed recovery barrel 7 is made of transparent material.

[0053] As shown in Figures 1-3 The furrow share 17 and the cover share 18 are arranged on the rack 1 and located between the smoothing roller 3 and the covering roller 4, and the vertical distance between the furrow share 17, the cover share 18 and the rack 1 is adjustable.

[0054] The technical scheme is further provided that the furrow share 17 and the cover share 18 are both installed on the rack 1 through an adjusting assembly, the adjusting assembly includes a vertical fixed tube 19 and a connecting tube 20, the fixed tube 19 is sleeved on the periphery of the rack 1 and locked through a second locking bolt, the second locking bolt penetrates the side wall of the fixed tube 19, and the end of the second locking bolt abuts against the rack 1. The connecting tube 20 is sleeved on the periphery of the furrow share 17 or the cover share 18 and locked through a third locking bolt, the third locking bolt penetrates the side wall of the connecting tube 20, and the end of the third locking bolt abuts against the furrow share 17 or the cover share 18.

[0055] During work, the relative position of the furrow share 17 and the cover share 18 to the rack 1 can be adjusted through the second locking bolt, and the vertical position of the furrow share 17 and the cover share 18 can be adjusted through the third locking bolt, so as to realize the adjustable furrow depth.

[0056] The above has described the present application in detail, the above is only the preferred embodiment of the present application, which cannot limit the scope of the present application, that is, all equivalent changes and modifications made within the scope of the present application should still fall within the scope of the present application.

Claims

1. A self-propelled seeder comprising a frame, characterized in that, The rack is provided with a driving element and a seed sowing device. The output end of the driving element is in turn in transmission connection with the roller shaft of the smoothing roller and the roller shaft of the covering roller. The roller shaft of the covering roller is in transmission connection with the seed sowing shaft. The seed sowing device comprises a housing and a seed sowing assembly rotating relative to the housing. The seed sowing assembly is arranged on a seed sowing transmission shaft which is in transmission connection with the seed sowing shaft. The rack is provided with an opening plough share and a covering plough share between the smoothing roller and the covering roller. The distance between the opening plough share and the covering plough share in the vertical direction is adjustable. The housing comprises a rear housing and a front housing which are detachably connected. The front housing is provided with a seed inlet. The seed sowing assembly comprises a seed guiding wheel and a seed sowing wheel. The seed guiding wheel and the seed sowing wheel are provided with a seed passing plate. The seed passing plate is connected with the rear housing. The seed passing plate is provided with an arc-shaped seed passing groove. The circumferential edge of the seed sowing wheel is arranged with a plurality of seed sowing grooves. The circumferential edge of the seed guiding wheel is arranged with a plurality of seed guiding grooves corresponding to the seed sowing grooves. The seed guiding grooves are provided with inclined grooves which are inclined towards the center of the seed guiding wheel. The rack is further provided with an air pump and a seed recovery bucket. The seed recovery bucket is in communication with the air suction port of the air pump through a first pipeline. The seed recovery bucket is in communication with a seed suction port on the front housing through a second pipeline. The seed recovery bucket is detachably arranged between the upper rack body and the lower rack body. The upper rack body is engaged with the seed recovery bucket. A plurality of spaced-apart tension springs are arranged between the upper rack body and the lower rack body.

2. A self-propelled seeder according to claim 1, characterized in that The power output end of the driving element is in transmission connection with the power input end of the first transmission mechanism. The power output end of the first transmission mechanism is in transmission connection with the power input end of the gearbox. The power output end of the gearbox is in transmission connection with the roller shaft of the smoothing roller and the roller shaft of the covering roller.

3. A self-propelled seeder according to claim 2, wherein, The other end of the roller shaft of the covering roller is in transmission connection with the power input end of the speed regulator through the second transmission mechanism. The power output end of the speed regulator is in transmission connection with the seed sowing shaft through the third transmission mechanism. The seed sowing shaft is in transmission connection with the seed sowing transmission shaft through the fourth transmission mechanism.

4. A self-propelled seeder according to claim 3, wherein, Tensioning wheels are arranged at the first transmission mechanism, the second transmission mechanism and the third transmission mechanism. The tensioning wheels are rotatably arranged at one end of a tensioning swing arm. The other end of the tensioning swing arm is connected with the rack through a first locking bolt.

5. The self-propelled seeder of claim 1, wherein, The rear housing and the front housing form a cavity. The front housing adopts a transparent structure. The rear housing is provided with a seed sowing port. The seed sowing assembly is rotatably arranged in the cavity.

6. A self-propelled seeder according to claim 5, wherein, The seed sowing assembly and the front housing form a seed storage cavity. The seed storage cavity is in communication with the seed inlet. The seed inlet is in communication with a seed hopper through a seed inlet channel.

7. A self-propelled seeder according to claim 1, wherein, The furrow share and the covering share are mounted on the frame through an adjusting assembly, the adjusting assembly comprises a fixed tube and a connecting tube which are perpendicular to each other, the fixed tube is sleeved on the periphery of the frame and locked through a second locking bolt, and the connecting tube is sleeved on the periphery of the furrow share or the covering share and locked through a third locking bolt.

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