An air suction hole planter

Abstract

The application discloses a kind of air suction type hill planter in the field of agricultural machinery, including rotating shaft, bearing shell and seed suction tube and seed storage tray, rotating shaft has equal division and is arranged in hole and is communicated with the counterbore on the axis of rotating shaft, bearing shell has equal division and is arranged in screw hole in recessed ring groove and is fastened and connected with the screw thread of seed suction tube root portion, seed storage tray is equipped with seed blocking plate, and flexible seed scraping plate is pasted on the opening groove of seed blocking plate, after seed suction tube adsorbs seed, between the opening groove of seed blocking plate, and after the circular arc cutout of seed taking tube and flexible seed scraping plate contact, flexible seed scraping plate forcibly scrapes seed and falls into guide seed box and slides into seed distribution duckbill, seed is planted to land by seed distribution duckbill and completes seeding operation, the adsorption port cross-sectional area of suction tube is small, only one seed can be adsorbed at a time, seed cleaner is not needed, one-hole one-seed seeding is realized and broken seed phenomenon does not appear, the whole seed taking and seed distribution structure is simple, easy to maintain.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of agricultural machinery, in particular to a kind of air suction type hill-drop planter. BACKGROUND

[0002] Cotton precision film seeding machine can meet the point planting requirement of one seed per hole, save a large amount of seed cost for the state and farmers, and make the planting households prefer one-seed precision planting.

[0003] The air suction type hill-drop planter available on the market uses a disc air suction structure, and the seed suction is unstable, and the seed suction is not easy to maintain, which brings a lot of inconvenience to the planting households in the busy season.

[0004] Therefore, in view of the different technical problems described above, a new air suction hill-drop planter is needed, which is stable in seed suction, simple in structure, easy to maintain, improves the seeding effect and reduces the phenomenon of missed seeding. SUMMARY

[0005] The present application aims to provide an air suction type hill-drop planter to solve the problems described in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an air suction hill-drop planter, comprising a rotating shaft 1, a bearing shell 2, a seed suction pipe 3 connected to the bearing shell 2 and a seed storage disc 4, a cylindrical surface 10 of the rotating shaft 1 is provided with equally divided and arranged holes 11 which are in communication with the blind hole 12 on the axis of the rotating shaft 1, the inner circular surface 20 of the bearing shell 2 is provided with a concave ring groove 21 opposite the holes 11, and the outer circular surface 22 of the bearing shell 2 is provided with equally divided and arranged threaded holes 23 penetrating the concave ring groove 21 and being tightly connected with the threads 30 at the root of the seed suction pipe 3.

[0007] Further, in the above-mentioned air suction hill-drop planter, the inner flat surface 40 of the seed storage disc 4 is provided with a seed blocking plate 41, the circumferential surface 42 of the seed storage disc 4 is provided with a rectangular hole 43 which is tangentially connected with the end of the seed blocking plate 41, the center of the seed storage disc 4 is provided with a circular hole 44 which is gap-fitted with the annular boss 24 on the bearing shell 2, the seed storage disc 4 is provided with an annular flat surface 45, the annular flat surface 45 is provided with a cylindrical nut 46 which is rigidly fixed with the first fixed hole 51 on the circular flat surface 50 of the fixed disc 5 through a screw rod, the seed blocking plate 41 is provided with an open groove 47 at the center line position, the open groove 47 of the seed blocking plate 41 is pasted with a flexible seed scraping plate 48, the center line position of the flexible seed scraping plate 48 is provided with an elongated groove 49 which corresponds to the position of the open groove 47.

[0008] Further, in the air suction hole planter, the seed taking pipe 31 on the front part of the seed suction pipe 3 is provided with a circular arc cutout 32 corresponding to the center of the large square hole 60 on the seed guide box 6, the circular arc cutout 32 on the seed taking pipe 31 is located between the circumferential surface 42 of the seed storage disc 4 and the front end of the seed blocking plate 41, the seed guide box 6 is provided with an arc-shaped plate 61 and is installed in cooperation with the annular groove 70 of the rotating disc 7 and the groove 80 of the pressing disc 8, the rotating disc 7 is provided with an equal array of second fixed holes 71 and is fastened and connected with the equal array of threaded counterbores 26 on the plane 25 of the bearing shell 2 through bolts, and the seed guide box 6 is installed with the seed discharge duckbill 9.

[0009] Further, in the air suction hole planter, the two sides of the recessed ring groove 21 on the bearing shell 2 are respectively installed with the gas seal 13 and the seal 14 matched with the rotating shaft 1, the rotating shaft 1 is installed on the inner rotating body of the rotating bearing 15 inside the bearing shell 2 and the bearing 16 on the rotating disc 7 and is sealed and matched with the gas seal 13 and the seal 14, the rotating shaft 1 penetrates through the center hole 52 on the fixed disc 5 and is fastened and connected through a threaded nut, and the fixed disc 5 is provided with a seed inlet 53 and is fixedly connected with the seed guide pipe 54.

[0010] Further, in the air suction hole planter, the number of the equal array of threaded holes 23 on the bearing shell 2 is three to sixteen, the number of the seed suction pipes 3 is three to sixteen and corresponds to the number of the threaded holes 23, and the number of the seed guide boxes 6 is three to sixteen and corresponds to the number of the seed suction pipes 3.

[0011] A use method of an air suction hole planter, comprising the following steps:

[0012] S1: installing the hole planter on the traction frame of the seeding machine, fastening and connecting the rotating shaft 1 with the traction frame through a nut, ensuring that the pipe opening of the seed guide pipe 54 is vertically upward, and making the seed blocking plate 41 and the oblong hole 43 on the seed storage disc 4 be in front of the seeding machine, connecting the negative pressure end of the fan on the seeding machine to the rotating shaft 1 through an air pipe;

[0013] S2: adding the seeds to be seeded into the seed cavity of the seed storage disc 4 and the fixed disc 5 through the seed guide pipe 54, keeping the rotating shaft 1, the seed storage disc 4 and the fixed disc 5 fixed and not doing circumferential motion, and keeping the bearing shell 2, the seed suction pipe 3 connected to the threaded hole 23 and the seed guide box 6 corresponding to the seed suction pipe 3 do circumferential motion with the rotation of the rotating disc 7;

[0014] S3: connecting the negative pressure end of the fan on the seeding machine to the rotating shaft 1 through an air pipe and to the circular arc cutout 32 of the seed taking pipe 31 on the seed suction pipe 3, and adsorbing the seeds in the seed storage disc 4 to the circular arc cutout 32;

[0015] S4: the circular arc cutout 32 adsorbs the seeds to make a circular motion, when the seed taking tube 31 enters the opening slot 47 of the seed blocking plate 41, the flexible seed scraping plate 48 on the circular arc cutout 32 and the opening slot 47 contacts, the flexible seed scraping plate 48 scrapes the seeds adsorbed on the circular arc cutout 32 away from the circular arc cutout 32 and falls into the seed guide box 6 corresponding to the circular arc cutout 32 along the inclined surface of the seed blocking plate 41 and slides into the seed arranging duckbill 9 under the action of gravity, when the hole seeder rotates to the seed arranging duckbill 9 to enter the ground, the seeds are point-planted into the land through the seed arranging duckbill 9 to complete the seeding work.

[0016] Compared with the prior art, the beneficial effects of the present application are:

[0017] The present application changes the seed particle adsorption mode of the optical disc integrated with the rotating disc in the prior art into the seed particle adsorption of the suction pipe connected with the bearing shell with the negative pressure air cavity concave ring groove, the seeds adsorbed at the circular arc cutout of the suction pipe head are forced to fall into the seed guide box through the seed blocking plate and the flexible seed scraping plate, and reach the seed arranging duckbill under the action of gravity, the cross-sectional area of the suction port of the suction pipe is small, only one seed can be adsorbed at a time, the seed cleaner for adsorbing multiple seeds is not needed in the whole process, one-hole one-seed seeding is realized and the phenomenon of broken seeds does not occur, the whole seed taking and arranging structure is simple and easy to maintain. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed for the following embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 The installation steps of the present application are shown in the figure;

[0020] Figure 2 The internal structure of the present application is shown in the figure;

[0021] Figure 3 The cross-sectional view of the present application is shown in the figure;

[0022] Figure 4 The seed storage disc part of the present application is shown in the figure;

[0023] Figure 5 The fixed disc part of the present application is shown in the figure;

[0024] Figure 6 The bearing shell cross-sectional part of the present application is shown in the figure;

[0025] Figure 7 The rotating shaft part of the present application is shown in the figure;

[0026] Figure 8 The seed suction pipe part of the present application is shown in the figure;

[0027] Figure 9 Schematic diagram of seed guide box of seed discharge duckbill of the present application;

[0028] Figure 10 Parts drawing of flexible seed scraping plate of the present application;

[0029] In the drawings, the components represented by each reference numeral are listed as follows:

[0030] 1-rotating shaft, 2-bearing shell, 3-seed suction tube, 4-seed storage disc, 5-fixing disc, 6-seed guide box, 7-rotating disc, 8-pressing disc, 9-seed discharge duckbill, 10-cylindrical surface, 11-hole, 12-counterbore, 13-gas seal, 14-seal, 15-rotating bearing, 16-bearing, 20-inner circular surface, 21-concave ring groove, 22-outer circular surface, 23-threaded hole, 24-circular ring boss, 25-flat surface, 26-threaded counterbore, 30-thread, 31-seed taking tube, 32-circular arc cutout, 40-inner flat surface, 41-seed blocking plate, 42-circumferential surface, 43-oblong hole, 44-circular hole, 45-ring flat surface, 46-cylindrical nut, 47-open groove, 48-flexible seed scraping plate, 49-elongated groove, 50-circular flat surface, 51-first fixing hole, 52-center hole, 53-seed inlet, 54-seed guide tube, 60-large square hole, 61-arc plate, 70-annular groove, 71-second fixing hole, 80-groove. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Please refer to Figures 1-10 The present application provides a technical solution: including rotating shaft 1, bearing shell 2 and seed suction tube 3 and seed storage disc 4 connected to the bearing shell 2, the cylindrical surface 10 of the rotating shaft 1 is provided with equally divided and arranged holes 11 and is communicated with the counterbore 12 on the axis of the rotating shaft 1, the inner circular surface 20 of the bearing shell 2 is provided with a concave ring groove 21 opposite to the holes 11, the outer circular surface 22 of the bearing shell 2 is provided with equally divided and arranged threaded holes 23 penetrating the concave ring groove 21 and is tightly connected with the threads 30 at the root of the seed suction tube 3.

[0033] The inner plane 40 of the seed storage disc 4 is provided with a seed blocking plate 41, the circumferential surface 42 of the seed storage disc 4 is provided with a rectangular hole 43 and is tangentially connected with the end of the seed blocking plate 41, the center of the seed storage disc 4 is provided with a circular hole 44 and is gap-fitted with the annular boss 24 on the bearing shell 2, the seed storage disc 4 is provided with an annular plane 45, the annular plane 45 is provided with a cylindrical nut 46 and is rigidly fixed with the first fixing hole 51 on the circular plane 50 of the fixed disc 5 through a screw rod, the middle line position of the seed blocking plate 41 is provided with an open slot 47, the open slot 47 of the seed blocking plate 41 is pasted with a flexible seed scraping plate 48, the middle line position of the flexible seed scraping plate 48 is provided with an elongated slot 49 and corresponds to the position of the open slot 47, the seed taking pipe 31 at the front part of the seed suction pipe 3 is provided with a circular arc cutout 32 and corresponds to the center of the large square hole 60 on the seed guide box 6, the circular arc cutout 32 on the seed taking pipe 31 is located between the circumferential surface 42 of the seed storage disc 4 and the front end of the seed blocking plate 41, the seed guide box 6 is provided with an arc-shaped plate 61 and is fitted and installed with the annular groove 70 of the rotating disc 7 and the groove 80 of the pressing disc 8, the rotating disc 7 is provided with an equal-divided array of second fixing holes 71 and is tightly connected with the equal-divided array of threaded counterbores 26 on the plane 25 of the bearing shell 2 through bolts, the seed guide box 6 is installed with the seed discharge duckbill 9, the two sides of the recessed ring groove 21 on the bearing shell 2 are respectively installed with the gas seal 13 and the seal 14 matched with the rotating shaft 1, the rotating shaft 1 is installed on the inner rotating body of the rotating bearing 15 inside the bearing shell 2 and the bearing 16 on the rotating disc 7 and is sealed and matched with the gas seal 13 and the seal 14, the rotating shaft 1 penetrates through the center hole 52 on the fixed disc 5 and is tightly connected through a threaded nut, the fixed disc 5 is provided with a seed inlet 53 and is fixedly connected with the seed guide pipe 54, the equal-divided array of threaded holes 23 on the bearing shell 2 is three to sixteen in number, the number of the seed suction pipes 3 is three to sixteen and corresponds to the number of the threaded holes 23, the number of the seed guide boxes 6 corresponds to the number of the seed suction pipes 3.

[0034] The specific use method is as follows:

[0035] S1: install the hill planter on the traction frame of the seeding machine, tightly connect the rotating shaft 1 with the traction frame through a nut, ensure that the pipe opening of the seed guide pipe 54 is vertically upward and make the seed blocking plate 41 and the rectangular hole 43 on the seed storage disc 4 be in front of the seeding machine, connect the negative pressure end of the fan on the seeding machine to the rotating shaft 1 through an air pipe;

[0036] S2: add the seeds to be seeded into the seed cavity of the seed storage disc 4 and the fixed disc 5 through the seed guide pipe 54, keep the rotating shaft 1 and the seed storage disc 4 and the fixed disc 5 fixed and not do circular motion, keep the bearing shell 2 and the seed suction pipes 3 connected on the threaded holes 23 and the seed guide boxes 6 corresponding to the seed suction pipes 3 do circular motion with the rotation of the rotating disc 7;

[0037] S3: The negative pressure end of the fan on the seeder is connected to the rotating shaft 1 through the air pipe and connected to the arc cut 32 of the seed suction tube 31, which will adsorb the seeds in the seed storage tray 4 at the arc cut 32.

[0038] S4: The arc-shaped cut 32 adsorbs the seeds and makes circular motion. When the seed tube 31 enters the opening groove 47 of the seed baffle plate 41, the arc-shaped cut 32 and the flexible scraping plate 48 on the opening groove 47 come into contact. The flexible scraping plate 48 scrapes the seeds adsorbed on the arc-shaped cut 32 away from the arc-shaped cut 31 and falls down the inclined surface of the seed baffle plate 41 into the seed guide box 6 corresponding to the arc-shaped cut 32. Under the action of gravity, the seeds slide into the seed metering duckbill 9. After the seeder rotates to the seed metering duckbill 9 entering the ground, the seeds are sown into the soil through the seed metering duckbill 9 to complete the sowing operation.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A pneumatic seeding device, comprising a rotating shaft (1), a bearing housing (2), a seed suction tube (3) connected to the bearing housing (2), and a seed storage tray (4), characterized in that: The cylindrical surface (10) of the rotating shaft (1) is provided with equally spaced holes (11) and connected to the countersunk hole (12) on the axis of the rotating shaft (1). The inner circular surface (20) of the bearing housing (2) is provided with a concave annular groove (21) opposite to the hole (11). The outer circular surface (22) of the bearing housing (2) is provided with equally spaced threaded holes (23) penetrating the concave annular groove (21) and fastened to the thread (30) at the root of the seed suction tube (3). The seed storage tray (4) has a seed baffle plate (41) on its inner plane (40). The seed storage tray (4) has a rectangular hole (43) on its circumferential surface (42) and is tangentially connected to the end of the seed baffle plate (41). The seed storage tray (4) has a circular hole (44) at its center and is clearance-fitted with the circular boss (24) on the bearing housing (2). The seed storage tray (4) has an annular plane (45). The annular plane (45) has a cylindrical nut (46) and is rigidly fixed to the first fixing hole (51) on the circular plane (50) of the fixed plate (5) by a screw. The seed baffle plate (41) has an opening groove (47) at its center line position. The seed baffle plate (41) has a flexible scraper plate (48) pasted on the opening groove (47). The flexible scraper plate (48) has a slender groove (49) at its center line position and is corresponding to the opening groove (47). The seed-taking tube (31) at the front of the seed-suction tube (3) has an arc-shaped cut (32) that corresponds to the center of the large square hole (60) on the seed guide box (6). The arc-shaped cut (32) on the seed-taking tube (31) is located between the circumferential surface (42) of the seed storage tray (4) and the front end of the seed baffle plate (41). The seed guide box (6) has an arc-shaped plate (61) that is fitted with the annular groove (70) of the rotating disk (7) and the groove (80) of the pressure plate (8). The rotating disk (7) has a second fixed hole (71) that is evenly arranged and is fastened to the threaded countersunk holes (26) that are evenly arranged on the plane (25) of the bearing housing (2) by bolts. The seed guide box (6) is equipped with a seed-discharging duckbill (9).

2. The air-suction seeding device according to claim 1, characterized in that: Gas seals (13) and seals (14) that cooperate with the rotating shaft (1) are respectively installed on both sides of the concave annular groove (21) on the bearing housing (2). The rotating shaft (1) is installed on the inner rotating body of the rotating bearing (16) on the rotating disk (7) inside the bearing housing (2) and the gas seals (13) and seals (14) to ensure a sealed fit. The rotating shaft (1) passes through the center hole (52) on the fixed disk (5) and is fastened by a threaded nut. The fixed disk (5) is provided with a seed inlet (53) and is fixedly connected to the seed guide tube (54).

3. The air-suction seeding device according to claim 2, characterized in that: The bearing housing (2) has 3 to 16 equally spaced threaded holes (23), the seed suction tubes (3) have 3 to 16 and correspond to the number of threaded holes (23), and the seed guide boxes (6) have 3 to 16 and correspond to the number of seed suction tubes (3).

4. The method of using the air-suction seeding device according to claim 3, characterized in that, Includes the following steps: S1: Install the seeder on the traction frame of the seeder. The shaft (1) is fixedly connected to the traction frame with a nut. Ensure that the opening of the seed guide tube (54) is vertically upward and that the seed baffle (41) and the rectangular hole (43) on the seed storage tray (4) are directly in front of the seeder in the forward direction. Connect the negative pressure end of the fan on the seeder to the shaft (1) through the air pipe. S2: The seeds to be sown are added into the seed cavity of the seed storage tray (4) and the fixed tray (5) through the seed guide tube (54). The rotating shaft (1) and the seed storage tray (4) and the fixed tray (5) remain fixed and do not make circular motion. The bearing housing (2) and the seed suction tube (3) connected to the threaded hole (23) and the seed guide box (6) corresponding to the seed suction tube (3) make circular motion with the rotation of the rotating tray (7). S3: The negative pressure end of the fan on the seeder is connected to the rotating shaft (1) through the air pipe and connected to the arc cut (32) of the seed suction tube (31) on the seed suction tube (3), so that the seeds in the seed storage tray (4) are adsorbed at the arc cut (32). S4: The arc-shaped cut (32) adsorbs the seeds and makes circular motion. When the seed tube (31) enters the opening groove (47) of the seed baffle plate (41), the arc-shaped cut (32) and the flexible seed scraper (48) on the opening groove (47) come into contact. The flexible seed scraper (48) scrapes the seeds adsorbed on the arc-shaped cut (32) away from the arc-shaped cut (32) and falls down along the slope of the seed baffle plate (41) into the seed guide box (6) corresponding to the arc-shaped cut (32). Under the action of gravity, the seeds slide into the seed metering duckbill (9). After the seeder rotates to the seed metering duckbill (9) and enters the ground, the seeds are sown into the soil through the seed metering duckbill (9) to complete the sowing operation.

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