Seed guide hole sowing device of pneumatic conveying type centralized discharging device

Abstract

The utility model relates to the technical field of crop sowing equipment, and discloses a seed guide hole sowing device of an air-conveying type collecting and discharging device, which comprises an air-conveying type distributor, the plurality of pressure relief pipes are uniformly distributed at the upper part of the air conveying type distributor; the seed guide pipes are fixed at one end, far away from the pneumatic conveying type distributor, of the pressure relief pipe; the seed feeding assemblies are fixed to the end, away from the pressure relief pipe, of the seed guide pipe, and each seed feeding assembly comprises a seed guide access pipe, a main shell, a rear end cover, a driving assembly, a scraper belt and a scraper separation belt. According to the utility model, a plurality of seed feeding assemblies are adopted, the whole structure is compact and simple, the appearance is small and exquisite, and installation, replacement and adjustment are convenient; the pressure relief pipe is communicated with the atmosphere, so that the uniformity of seed metering is ensured; the scraper plate belt and the scraper plate separation belt are used for dividing seed flow and transporting seeds, so that the hole sowing function of the oilseed rape is realized, the precision hole sowing requirement can be realized, and the seed metering quality and precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crop seeding equipment, and particularly relates to an air-sending type seed collecting and row arranging device for hole seeding. Background Art

[0002] Rapeseed is the largest oil crop in China, and both the planting area and total output of rapeseed rank first in the world. The diameter of rapeseed for direct seeding is generally 1.5 - 2.5 mm. The seed coat is thin, the tissue is loose, and the oil content is high. Its particle size is small, and the seeding rate per unit area is small, about 0.2 - 0.3 kg per mu. Therefore, it is difficult to achieve hole seeding. It is necessary to ensure both the number of seeds per hole and the uniformity of hole spacing. The precise hole seeding of small particle size seeds is difficult and has not been completely overcome all the time.

[0003] The existing air-sending type centralized rapeseed seeder is widely used and has high seeding efficiency. Its seeding form is strip seeding, which is difficult to form the seed distribution of hole seeding, affecting the uniformity of seeds and the seedling emergence rate.

[0004] Therefore, there is an urgent need for an air-sending type seed collecting and row arranging device for hole seeding to solve the problem that the existing air-sending type centralized rapeseed seeder is difficult to form the seed distribution of hole seeding, affecting the uniformity of seeds and the seedling emergence rate. Summary of the Utility Model

[0005] In view of this, the utility model provides an air-sending type seed collecting and row arranging device for hole seeding, aiming to solve the problem that the existing air-sending type centralized rapeseed seeder is difficult to form the seed distribution of hole seeding, affecting the uniformity of seeds and the seedling emergence rate.

[0006] The utility model provides an air-sending type seed collecting and row arranging device for hole seeding, including:

[0007] An air-sending type distributor;

[0008] A plurality of pressure relief pipes, which are evenly distributed on the upper part of the air-sending type distributor;

[0009] A plurality of seed guiding pipes, which are fixed at one end of the pressure relief pipe far away from the air-sending type distributor;

[0010] A plurality of seed throwing assemblies, which are fixed at one end of the seed guiding pipe far away from the pressure relief pipe. Among them, the seed throwing assembly includes:

[0011] A seed guiding access pipe, which is fixed at one end of the seed guiding pipe far away from the pressure relief pipe;

[0012] A main housing, which is connected to one end of the seed guiding access pipe far away from the seed guiding pipe. A secondary seed throwing port is opened at one end of the main housing far away from the seed guiding access pipe;

[0013] Rear end cover, covering and arranged on the main housing;

[0014] Drive assembly, arranged on the main housing;

[0015] Scraper belt, arranged in a ring shape, the scraper belt is arranged on one side of the main housing close to the rear end cover, and the scraper belt is also sleeved on the drive assembly;

[0016] Scraper spacer belts, several are provided, and one side of the scraper spacer belts is fixed on the side of the scraper belt away from the drive assembly.

[0017] Further, the drive assembly includes:

[0018] Motor, fixed on the side wall of the main housing away from the rear end cover;

[0019] Drive shaft, connected to the output shaft of the motor, and the drive shaft is arranged inside the main housing;

[0020] Drive pulley, fixed on the drive shaft so that the drive shaft drives the drive pulley to rotate;

[0021] Driven shaft, arranged inside the main housing, and the driven shaft is rotatably connected to the main housing;

[0022] Driven pulley, fixed on the driven shaft, and the scraper belt is sleeved on the drive pulley and the driven pulley so that the scraper belt rotates inside the main housing.

[0023] Further, the seed dropping assembly further includes:

[0024] Tensioning assembly, arranged inside the main housing, and the tensioning assembly is also located between the driven pulley and the drive pulley, and the tensioning assembly is used to limit the position of the driven pulley.

[0025] Further, the tensioning assembly includes:

[0026] Fixed block, fixed inside the main housing, and the fixed block is also located between the drive pulley and the driven pulley;

[0027] Movable block, elastically connected to the fixed block through an elastic member, the movable block is arranged close to the driven pulley, and the movable block is used to limit the position of the driven pulley.

[0028] Further, the elastic member is a spring, one end of the spring is connected to one of the fixed blocks, and the other end of the spring is connected to the movable block.

[0029] Further, both the drive shaft and the driven shaft are located on the center line of the main housing.

[0030] Furthermore, the seed dropping assembly further includes:

[0031] A mounting base, which is fixed on the main housing and is used to fix the seed dropping assembly.

[0032] Furthermore, the pressure relief pipe is a metal mesh pipe so that the pressure relief pipe is communicated with the atmosphere.

[0033] Furthermore, the scraper belt and the scraper spacer belt are made of rubber.

[0034] Furthermore, there are 10 scraper spacer belts provided.

[0035] Compared with the prior art, the beneficial effects of the present utility model are as follows: The single hole-forming seed guiding and modular design technologies are adopted, that is, multiple seed dropping assemblies are used. The overall structure is compact, simple, and small in shape, which is convenient for installation, replacement, and adjustment; the pressure relief pipe is communicated with the atmosphere, so that the air pressures at several secondary seed dropping ports are the same, ensuring the uniformity of seed metering, and reducing the redundant gas pressure and gas flow rate in the pressure relief pipe and the seed guiding pipe, thereby reducing the seed movement speed in the pressure relief pipe and the seed guiding pipe; the motor directly drives the driving pulley, and the scraper belt and the scraper spacer jointly with the main housing and the rear end cover form an independent separation area. The scraper belt and the scraper spacer belt are used to divide the seed flow and transport the seeds, realizing the function of rapeseed hill-drop seeding, meeting the requirements of precise hill-drop seeding, realizing the conversion of the strip seeding of the pneumatic metering device into hill-drop seeding, improving the seed metering quality and accuracy, and contributing to improving the seeding quality. Description of the Drawings

[0036] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered as a limitation of the present utility model. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0037] Figure 1 It is a schematic structural diagram of the pneumatic collecting and rowing seed guiding hill-drop seeding device provided by the embodiment of the present utility model;

[0038] Figure 2 It is a schematic structural diagram of the seed dropping assembly with the rear end cover opened provided by the embodiment of the present utility model;

[0039] Figure 3 It is a cross-sectional view of the seed dropping assembly provided by the embodiment of the present utility model.

[0040] In the figure: 100, pneumatic distributor; 200, pressure relief pipe; 300, seed guiding pipe; 400, seed dropping assembly; 410, seed guiding access pipe; 420, main housing; 421, secondary seed dropping port; 430, rear end cover; 440, drive assembly; 441, motor; 442, drive shaft; 443, drive pulley; 444, driven shaft; 445, driven pulley; 450, scraper belt; 460, scraper partition belt; 470, tensioning assembly; 471, fixed block; 472, movable block; 473, elastic member; 480, mounting seat. Detailed implementation manners

[0041] The following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0042] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application.

[0043] The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise stated, the meaning of "a plurality" is two or more.

[0044] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0045] Refer to Figures 1-3As shown in the figure, this embodiment provides an air-sending type row collector seed guiding hole seeding device, which includes an air-sending type distributor 100; a plurality of pressure relief pipes 200, which are evenly distributed on the upper part of the air-sending type distributor 100; a plurality of seed guiding pipes 300, which are fixed at one end of the pressure relief pipe 200 away from the air-sending type distributor 100; a plurality of seed throwing assemblies 400, which are fixed at one end of the seed guiding pipe 300 away from the pressure relief pipe 200. Among them, the seed throwing assembly 400 includes a seed guiding access pipe 410, which is fixed at one end of the seed guiding pipe 300 away from the pressure relief pipe 200; a main housing 420, which is connected to one end of the seed guiding access pipe 410 away from the seed guiding pipe 300, and a secondary seed throwing port 421 is opened at one end of the main housing 420 away from the seed guiding access pipe 410; a rear end cover 430, which is covered on the main housing 420; a driving assembly 440, which is arranged on the main housing 420; a scraper belt 450, which is arranged in a ring shape, and the scraper belt 450 is arranged on one side of the main housing 420 close to the rear end cover 430, and the scraper belt 450 is also sleeved on the driving assembly 440; a plurality of scraper spacer belts 460, and one side of the scraper spacer belt 460 is fixed on the side of the scraper belt 450 away from the driving assembly 440.

[0046] It can be understood that by adopting the single-hole seed guiding and modular design technology, that is, using a plurality of seed throwing assemblies 400, the overall structure is compact, simple, and small in shape, which is convenient for installation, replacement, and adjustment; the pressure relief pipe 200 is communicated with the atmosphere, so that the air pressures of a plurality of secondary seed throwing ports 421 are the same, ensuring the uniformity of seed metering, and reducing the excess gas pressure and gas flow rate in the pressure relief pipe 200 and the seed guiding pipe 300, thereby reducing the seed movement speed in the pressure relief pipe 200 and the seed guiding pipe 300; the motor 441 directly drives the driving belt pulley 443, and the scraper belt 450 and the scraper spacer cooperate with the main housing 420 and the rear end cover 430 to form an independent partition area. The scraper belt 450 and the scraper spacer belt 460 are used to divide the seed flow and transport the seeds, realizing the function of rapeseed hole seeding, meeting the requirements of precise hole seeding, realizing the conversion of the strip seeding of the air-sending type seed metering device into hole seeding, improving the seed metering quality and accuracy, and contributing to improving the seeding quality.

[0047] In a specific embodiment of the present application, the driving assembly 440 includes a motor 441, which is fixed on the side wall of the main housing 420 away from the rear end cover 430; a driving shaft 442, which is connected to the output shaft of the motor 441, and the driving shaft 442 is arranged in the main housing 420; a driving belt pulley 443, which is fixed on the driving shaft 442, so that the driving shaft 442 drives the driving belt pulley 443 to rotate; a driven shaft 444, which is arranged in the main housing 420, and the driven shaft 444 is rotatably connected to the main housing 420; a driven belt pulley 445, which is fixed on the driven shaft 444, and the scraper belt 450 is sleeved on the driving belt pulley 443 and the driven belt pulley 445, so that the scraper belt 450 rotates in the main housing 420.

[0048] It can be understood that the driving pulley 443 drives the driven pulley 445 to rotate through the scraper belt 450, realizing the rotation of the scraper belt 450 within the main housing 420, and dropping the seeds between two adjacent scraper spacer belts 460 from the secondary seed dropping port 421 to achieve hill dropping.

[0049] In a specific embodiment of the present application, the seed dropping assembly 400 further includes a tensioning assembly 470, which is arranged within the main housing 420. The tensioning assembly 470 is also located between the driven pulley 445 and the driving pulley 443, and the tensioning assembly 470 is used to define the position of the driven pulley 445.

[0050] In a specific embodiment of the present application, the tensioning assembly 470 includes a fixed block 471, which is fixed within the main housing 420. The fixed block 471 is also located between the driving pulley 443 and the driven pulley 445; a movable block 472, which is arranged within the main housing 420. The movable block 472 is elastically connected to the fixed block 471 through an elastic member 473. The movable block 472 is movably connected to the driven pulley 445, and the driven pulley 445 is embedded at one end of the movable block 472 away from the fixed block 471, so that the movable block 472 defines the position of the driven pulley 445.

[0051] In a specific embodiment of the present application, the elastic member 473 is a spring. One end of the spring is connected to one of the fixed blocks 471, and the other end of the spring is connected to the movable block 472.

[0052] In a specific embodiment of the present application, both the driving shaft 442 and the driven shaft 444 are located on the center line of the main housing 420.

[0053] It can be understood that the tensioning assembly 470 includes a fixed block 471, a movable block 472 and a spring, and the tensioning assembly 470 can enable the driven pulley 445 to move along the direction of the center line connection of the driven pulley 445 and the driving pulley 443.

[0054] In a specific embodiment of the present application, the seed dropping assembly 400 further includes a mounting seat 480, which is fixed on the main housing 420, and the mounting seat 480 is used to fix the seed dropping assembly 400.

[0055] In a specific embodiment of the present application, the pressure relief pipe 200 is a metal mesh pipe, so that the pressure relief pipe 200 is communicated with the atmosphere.

[0056] It can be understood that the pressure relief pipe 200 is made of a metal mesh pipe, which can enable the pressure relief pipe 200 to be communicated with the atmosphere, make the air pressures of several secondary seed dropping ports 421 consistent, ensure the uniformity of seed dropping, and reduce the excess gas pressure and gas flow rate within the pressure relief pipe 200 and the seed guiding pipe 300, thereby reducing the seed movement speed within the pressure relief pipe 200 and the seed guiding pipe 300.

[0057] In a specific embodiment of the present application, the scraper belt 450 and the scraper spacer belt 460 are made of rubber.

[0058] It can be understood that by using the flexible scraper belt 450 and the scraper spacer belt 460, the damage and collision to the seeds can be reduced, and the requirements of precise hill-drop seeding can be achieved.

[0059] In a specific embodiment of the present application, 10 scraper spacer belts 460 are provided.

[0060] The working principle of the present utility model: Seeds are evenly distributed into each pressure relief pipe 200 through the pneumatic distributor 100. After the pressure and flow rate are reduced by communicating the pressure relief pipe 200 with the atmosphere, the seeds enter the seed guiding pipe 300, and then are guided by the seed guiding pipe 300 to the seed dropping assembly 400. Inside the seed dropping assembly 400, the motor 441 drives the driving shaft 442 to drive the scraper belt 450 to rotate. The scraper belt 450 and the scraper spacer belt 460 work together to separate and transport the seeds to the secondary seed dropping port 421 inside the main housing 420. At the same time, the tensioning assembly 470 ensures that the scraper belt 450 is tensioned and stable. The driven pulley 445 rotates with the scraper belt 450. When the scraper belt 450 rotates to the secondary seed dropping port 421, the seeds between adjacent scraper spacer belts 460 precisely drop from the secondary seed dropping port 421, realizing precise hill-drop seeding.

[0061] The hole forming performance and seed metering performance of the pneumatic collecting and rowing seed guiding and hill-drop seeding device are tested by using rapeseed seeds, and the results are shown in Table 1.

[0062] Table 1 Hole forming performance and seed metering performance of a pneumatic collecting and rowing seed guiding and hill-drop seeding device

[0063]

[0064] As can be seen from Table 1, the coefficient of variation of the hill-drop spacing of the present utility model is less than 13%, and the qualification rate of the number of seeds per hole is higher than 85%, mostly reaching 90%. It shows that the pneumatic collecting and rowing seed guiding and hill-drop seeding device can achieve hill-drop seeding and seed metering of the pneumatic rapeseed collector.

[0065] Those of ordinary skill in the art can understand that the above description is only the preferred embodiment of the present utility model and is not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An air-transported seed collecting and seeding device, characterized in that: include: Air-assisted distributors; A plurality of pressure relief pipes are provided, and the pressure relief pipes are evenly distributed on the upper part of the air-conveying distributor; A plurality of seed guide tubes are provided, and the seed guide tubes are fixed to one end of the pressure relief tube away from the air-feeding distributor; A plurality of seeding assemblies are provided, and the seeding assemblies are fixed to one end of the seed guide tube away from the pressure relief tube, wherein the seeding assemblies include: A seed guide access pipe is fixed to one end of the seed guide pipe away from the pressure relief pipe; A main housing is connected to one end of the seed guide access tube away from the seed guide tube, and a secondary seeding port is provided at one end of the main housing away from the seed guide access tube; A rear end cover, which is arranged on the main housing; A drive assembly, disposed on the main housing; A scraper belt is arranged in an annular shape, the scraper belt is arranged on a side of the main housing close to the rear end cover, and the scraper belt is also sleeved on the driving assembly; A plurality of scraper spacer belts are provided, and one side of the scraper spacer belts is fixed to a side of the scraper belt away from the driving assembly.

2. The air-transported seed collecting and seeding device according to claim 1 is characterized in that: The drive assembly comprises: A motor, fixed on a side wall of the main housing away from the rear end cover; A drive shaft connected to the output shaft of the motor, wherein the drive shaft is disposed in the main housing; A driving pulley, fixed on the driving shaft, so that the driving shaft drives the driving pulley to rotate; A driven shaft, disposed in the main housing, the driven shaft being rotatably connected to the main housing; The driven pulley is fixed on the driven shaft, and the scraper belt is sleeved on the driving pulley and the driven pulley so that the scraper belt rotates in the main housing.

3. The air-transported seed collecting and seeding device according to claim 2 is characterized in that: The seeding assembly also includes: A tensioning assembly is arranged in the main housing. The tensioning assembly is also located between the driven pulley and the driving pulley. The tensioning assembly is used to limit the position of the driven pulley.

4. The air-transported seed collecting and guiding hole-seeding device according to claim 3 is characterized in that: The tensioning assembly comprises: A fixed block, fixed in the main housing, the fixed block is also located between the driving pulley and the driven pulley; A movable block is arranged in the main housing, the movable block is elastically connected to the fixed block through an elastic member, the movable block is movably connected to the driven pulley, and the driven pulley is embedded in one end of the movable block away from the fixed block, so that the movable block limits the position of the driven pulley.

5. The air-transported seed collecting and seeding device according to claim 4 is characterized in that: The elastic member is a spring, one end of the spring is connected to one of the fixed blocks, and the other end of the spring is connected to the movable block.

6. The air-transported seed collecting and guiding hole-seeding device according to claim 2 is characterized in that: The driving shaft and the driven shaft are both located on the center line of the main housing.

7. The air-transported seed collecting and seeding device according to claim 1 is characterized in that: The seeding assembly also includes: A mounting seat is fixed on the main shell, and the mounting seat is used to fix the seeding assembly.

8. The air-transported seed collecting and seeding device according to claim 1, characterized in that: The pressure relief pipe is a metal mesh pipe so that the pressure relief pipe is connected to the atmosphere.

9. The air-transported seed collecting and guiding hole-seeding device according to claim 1, characterized in that: The scraper belt and the scraper spacer belt are made of rubber.

10. The air-transported seed collecting and seeding device according to claim 1, characterized in that: There are 10 scraper spacers.

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