Seed-metering opening height adjusting device for no-tillage rotary seeding machine

Abstract

The invention belongs to the technical field of agricultural machinery, and particularly relates to a seed outlet height adjusting device for a no-tillage rotary seeder, which comprises a mounting rack, four groups of fixing seats are mounted on the back of the mounting rack, guide sliding columns are mounted on two sides of the front end of the mounting rack, and a seeding frame is arranged at the front end of the mounting rack. Guide sliding seats are mounted on two sides of the back of the seeding frame. A seeding frame is mounted on a mounting rack, the seeding frame can drive two groups of guide sliding seats to lift along two groups of guide sliding columns, and then through two groups of servo linear drivers mounted on the mounting rack, a plurality of groups of laser distance measuring sensors on the seeding frame collect the distance between a seeding pipe and the ground surface in real time; the two sets of servo linear drivers can drive the seeding frame to rapidly and integrally lift in real time, so that the seeding distances between the multiple sets of seeding pipes and the ground are kept consistent, manual adjustment is not needed, and the seeding efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of agricultural machinery, in particular to a seed discharge port height adjusting device for a no-tillage rotary seeding machine. BACKGROUND

[0002] No-tillage seeding refers to the operation of directly completing straw covering treatment, seeding and fertilization through a machine without traditional ploughing, and has the advantages of preserving soil moisture, reducing water and soil loss, reducing energy consumption and maintaining soil structure, and is one of the important technologies for the sustainable development of modern agriculture. Especially in arid and semiarid regions and straw returning regions, the no-tillage technology can significantly improve the survival rate and yield of crops.

[0003] At present, the no-tillage rotary seeding machine mainly throws seeds outward through a seed discharge tube, and the existing seed discharge tube is generally fixedly installed and cannot adapt to complex and changeable field environments. When the seed discharge port is too high from the ground, the seeds are easily disturbed by air flow and deviate from the seeding ditch during the falling process, resulting in uneven seedling distribution. When the seed discharge port is too low, it is easy to be blocked by the mud produced by rotary ploughing, causing seedling and ridge breakage. Some seeding machines capable of adjusting the height of the seed discharge tube also rely on manual screw rods for height adjustment, which requires manual adjustment by the operator and consumes a long time, thereby affecting the seeding efficiency. Therefore, the application provides a seed discharge port height adjusting device for a no-tillage rotary seeding machine to solve the above problems. SUMMARY

[0004] The application aims to provide a seed discharge port height adjusting device for a no-tillage rotary seeding machine to solve the problems in the background.

[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme: a seed discharge port height adjusting device for a no-tillage rotary seeding machine, comprising a mounting frame, four groups of fixing seats are installed on the back of the mounting frame, guide sliding columns are installed on both sides of the front end of the mounting frame, a seeding frame is arranged at the front end of the mounting frame, guide sliding seats are installed on both sides of the back of the seeding frame, the seeding frame is slidably connected with the two groups of guide sliding seats and the two groups of guide sliding columns, a plurality of groups of seed discharge tubes are installed at equal intervals at the bottom end of the seeding frame, a seed dispenser is installed on the upper side of the front end of the mounting frame, a plurality of groups of seed discharge cylinders are installed at equal intervals in the seed dispenser, a discharge hose is installed at the bottom end of each of the plurality of groups of seed discharge cylinders, two groups of servo linear actuators are installed on the front end of the mounting frame, the output ends of the two groups of servo linear actuators are connected with the outer wall of the seeding frame through mounting seats, a plurality of groups of laser ranging sensors are installed at equal intervals at the front end of the seeding frame, and a hose positioning assembly is installed in the seeding frame.

[0006] As an improved technical scheme, the hose positioning assembly comprises multiple sets of positioning sleeves installed at equal intervals inside the seeding frame, a placing groove is formed in the middle of each of the multiple sets of positioning sleeves, the positions of the multiple sets of placing grooves correspond to the positions of the seeding pipes, the feeding hoses are all penetrated into the placing grooves inside the positioning sleeves, the bottom ends of the placing grooves are arranged inside the seeding pipes, a threaded groove is formed in the side end of each of the placing grooves, a threaded rod is threadedly connected in the threaded groove, a handle is arranged at the end of the threaded rod away from the positioning sleeve, and a rubber head is glued to the end of the threaded rod towards the inside of the placing groove.

[0007] As an improved technical scheme, the inner wall of the guide sliding seat is fully matched with the inner wall of the guide sliding column, and the seeding frame is in sliding connection with the guide sliding column.

[0008] As an improved technical scheme, the four sets of fixing seats at the back of the mounting frame are distributed in a rectangular shape.

[0009] As an improved technical scheme, the inner walls of the seeding frame and the seeding pipes are all subjected to polishing treatment.

[0010] As an improved technical scheme, the multiple sets of seeding pipes at the bottom end of the seeding frame are all located directly below the seeding frame.

[0011] As an improved technical scheme, the servo linear driver and the laser ranging sensor are both electrically connected with an external controller through wires.

[0012] After the above technical scheme is adopted, the application has the following beneficial effects:

[0013] I. The seeding frame is mounted on the mounting frame, so that the seeding frame can drive the two sets of guide sliding seats to ascend and descend along the two sets of guide sliding columns. Then, the multiple sets of laser ranging sensors on the seeding frame are used to collect the distance between the seeding pipes and the ground surface in real time, and the two sets of servo linear drivers mounted on the mounting frame are used to drive the seeding frame to ascend and descend in real time, so that the seeding distance of the multiple sets of seeding pipes to the ground surface is kept consistent, manual adjustment is not needed, the seeding efficiency is effectively improved, the uniform seeding depth and position can effectively reduce the seedling mortality rate and improve the seedling consistency.

[0014] II. The multiple sets of feeding hoses are penetrated into the placing grooves in the positioning sleeves, the handle is rotated to rotate the threaded rod in the threaded groove, and the rubber head on the threaded rod is used to position the feeding hose in the placing groove, so that the feeding hose is prevented from being accidentally loosened due to vibration and the reliability of the feeding hose during use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the application.

[0016] Figure 2 is a schematic view of the back view structure of the present application;

[0017] Figure 3 is a schematic view of the partially disassembled structure of the present application;

[0018] Figure 4 is a schematic view of the back view structure of the present application Figure 3 ;

[0019] Figure 5 is a schematic view of the enlarged structure at A of the present application Figure 1 .

[0020] In the figure: 1, mounting frame; 2, fixed seat; 3, guide slide column; 4, seeding frame; 5, guide slide; 6, seeding pipe; 7, seeder; 8, seed discharge cylinder; 9, material discharge hose; 10, servo linear driver; 11, mounting seat; 12, positioning sleeve; 13, placing groove; 14, threaded groove; 15, threaded rod; 16, handle; 17, laser ranging sensor; 18, rubber head. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0022] The present application provides a technical solution: as shown in Figures 1 to 5 In the present embodiment, a no-tillage belt rotary seeding machine seed discharge port height adjusting device is provided, which comprises a mounting frame 1, four groups of fixed seats 2 are installed on the back of the mounting frame 1, guide slide columns 3 are installed on both sides of the front end of the mounting frame 1, a seeding frame 4 is arranged at the front end of the mounting frame 1, guide slides 5 are installed on both sides of the back of the seeding frame 4, the seeding frame 4 is slidably connected with the two groups of guide slides 5 and the two groups of guide slide columns 3, a plurality of groups of seeding pipes 6 are installed at the bottom end of the seeding frame 4 at equal intervals, a seeder 7 is installed on the upper side of the front end of the mounting frame 1, a plurality of groups of seed discharge cylinders 8 are installed in the seeder 7 at equal intervals, a material discharge hose 9 is installed at the bottom end of each of the plurality of groups of seed discharge cylinders 8, two groups of servo linear drivers 10 are installed at the front end of the mounting frame 1, the output ends of the two groups of servo linear drivers 10 are connected with the outer wall of the seeding frame 4 through mounting seats 11, a plurality of groups of laser ranging sensors 17 are installed at the front end of the seeding frame 4 at equal intervals, and a hose positioning assembly is installed inside the seeding frame 4 at equal intervals.

[0023] By installing the seeding frame 4 on the mounting frame 1, the seeding frame 4 can drive the two sets of guide slides 5 to ascend and descend along the two sets of guide slide columns 3. Then, by installing the two sets of servo linear actuators 10 on the mounting frame 1, the multiple sets of laser ranging sensors 17 on the seeding frame 4 can collect the distance between the seeding tube 6 and the ground surface in real time. Then, the two sets of servo linear actuators 10 can drive the seeding frame 4 to ascend and descend quickly in real time, so as to ensure that the multiple sets of seeding tubes 6 maintain the same seeding distance from the ground surface, without the need for manual adjustment, effectively improving the seeding efficiency. The uniform seeding depth and position can effectively reduce the seedling rate and improve the seedling consistency. Then, the seed discharge cylinder 8 can uniformly discharge the seeds into the corresponding seeding tube 6 through the seed dispenser 7.

[0024] In other embodiments, the hose positioning assembly includes multiple sets of positioning sleeves 12 installed at equal intervals inside the seeding frame 4. The middle part of each set of positioning sleeves 12 is provided with a placement groove 13. The positions of the multiple sets of placement grooves 13 correspond to the positions of the seeding tubes 6. The discharge hoses 9 all penetrate into the placement grooves 13 inside the positioning sleeves 12. The bottom end of the placement groove 13 is placed inside the seeding tube 6. The side end of the placement groove 13 is provided with a threaded groove 14. The threaded groove 14 is internally threadedly connected with a threaded rod 15. The end of the threaded rod 15 away from the positioning sleeve 12 is provided with a handle 16. The end of the threaded rod 15 towards the inside of the placement groove 13 is glued with a rubber head 18.

[0025] By installing multiple sets of positioning sleeves 12 inside the seeding frame 4, the multiple sets of discharge hoses 9 can penetrate through the placement grooves 13 of the positioning sleeves 12. Then, by rotating the handle 16, the threaded rod 15 can rotate in the threaded groove 14. The rubber head 18 on the threaded rod 15 can position the discharge hose 9 in the placement groove 13, preventing the discharge hose 9 from being accidentally loosened due to vibration, and improving the reliability of the discharge hose 9 in use.

[0026] In other embodiments, the inner wall of the guide slide 5 fully matches the inner wall of the guide slide column 3. The seeding frame 4 is in sliding connection with the guide slide column 3.

[0027] Through the design, when the seeding frame 4 drives the two sets of guide slides 5 to slide along the surfaces of the two sets of guide slide columns 3, the guide slides 5 can be effectively prevented from shaking during movement, ensuring the stability of the seeding frame 4 during ascending and descending.

[0028] In other embodiments, the four sets of fixing seats 2 on the back of the mounting frame 1 are in rectangular distribution.

[0029] Through the design, the bolts can penetrate through the fixing seats 2 to form a rigid connection with the main frame of the seeding machine.

[0030] In other embodiments, the inner walls of the seeding frame 4 and the seeding tube 6 are polished.

[0031] Through the design, the friction between the inner wall of the seeding frame 4 and the seeding pipe 6 and the seeds is reduced, and the seeds can be smoothly discharged from the seeding pipe 6.

[0032] In other embodiments, the plurality of groups of the seeding pipes 6 at the bottom end of the seeding frame 4 are located directly below the seeding frame 4.

[0033] Through the design, the bottom end of the seeding pipe 6 can be effectively prevented from being blocked by the laser ranging sensor 17, and the plurality of groups of the laser ranging sensor 17 can detect the distance between the seeding frame 4 and the ground in real time.

[0034] In other embodiments, the servo linear driver 10 and the laser ranging sensor 17 are electrically connected to the external controller through wires.

[0035] Through the design, the laser ranging sensor 17 can transmit the detected height data to the external controller in real time, and the external controller can issue instructions to the two groups of servo linear drivers 10, so that the two groups of servo linear drivers 10 can drive the seeding frame 4 to quickly adjust the height.

[0036] The application provides a height adjusting device for a no-tillage rotary seeding machine, and the specific working principle is as follows:

[0037] First, the mounting bracket 1 is installed on the seeding machine frame through the fixing seat 2, and then the seeds are put into the seed discharge cylinder 8. Subsequently, the seeding frame 4 is moved to the field by the seeding machine, and the plurality of groups of the laser ranging sensor 17 can detect the distance between the seeding pipe 6 and the ground in real time. The laser ranging sensor 17 can transmit the detected height data to the external controller in real time, and the external controller can issue instructions to the two groups of servo linear drivers 10. The two groups of servo linear drivers 10 drive the seeding frame 4 and the two groups of guide sliding seats 5 to move linearly along the two groups of guide sliding columns 3, so that the distance between the seeding pipe 6 and the ground can be kept consistent, and the positioning of the plurality of groups of the discharge hoses 9 is adjusted by the seeding frame 4. The movable threaded rod 15 in the positioning sleeve 12 can fix the position of the discharge hose 9, so that the discharge hose 9 does not accidentally separate from the inside of the seeding pipe 6 when the discharge hose 9 is moved by the seeding frame 4. Subsequently, the seeds are uniformly discharged from the discharge hose 9 into the seeding pipe 6 by the seed discharge cylinder 8, and the seeds are uniformly discharged from the seeding pipe 6.

[0038] The electrical components in this document are electrically connected to the main controller and industrial power supply, and the main controller can be a computer or other conventional known device that can be controlled.

[0039] It should be noted that the above examples are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced, without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A seed outlet height adjustment device for a no-till rotary seeder, comprising a mounting frame (1), characterized in that: The mounting frame (1) has four sets of fixed seats (2) installed on its back. Guide slides (3) are installed on both sides of the front end of the mounting frame (1). A seeding frame (4) is provided at the front end of the mounting frame (1). Guide slides (5) are installed on both sides of the back of the seeding frame (4). The seeding frame (4) is slidably connected to the two sets of guide slides (3) through two sets of guide slides (5). Multiple seeding tubes (6) are installed at equal intervals at the bottom end of the seeding frame (4). A seeder (7) is installed on the upper side of the front end of the mounting frame (1). The seeder (7) has multiple seed cylinders (8) installed at equal intervals inside, and each seed cylinder (8) has a feeding hose (9) installed at the bottom. The mounting frame (1) has two servo linear drivers (10) installed at the front end. The output ends of the two servo linear drivers (10) are connected to the outer wall of the seeding frame (4) through the mounting base (11). The seeding frame (4) has multiple laser rangefinders (17) installed at equal intervals at the front end. The seeding frame (4) has hose positioning components installed at equal intervals inside.

2. The seed outlet height adjustment device for a no-till rotary seeder according to claim 1, characterized in that: The hose positioning assembly includes multiple sets of positioning sleeves (12) installed at equal intervals inside the seeding frame (4). Each set of positioning sleeves (12) has a placement groove (13) in the middle. The positions of the multiple sets of placement grooves (13) correspond to the positions of the seeding tube (6). The feeding hose (9) passes through the placement groove (13) inside the positioning sleeve (12). The bottom end of the placement groove (13) is placed inside the seeding tube (6). Each side end of the placement groove (13) has a threaded groove (14). A threaded rod (15) is threaded inside the threaded groove (14). A handle (16) is installed at the end of the threaded rod (15) away from the positioning sleeve (12). A glue head (18) is glued to the end of the threaded rod (15) facing the inside of the placement groove (13).

3. The seed outlet height adjustment device for a no-till rotary seeder according to claim 1, characterized in that: The inner wall of the guide slide (5) is fully fitted with the inner wall of the guide slide (3), and the seeding frame (4) is slidably connected to the guide slide (3).

4. The seed outlet height adjustment device for a no-till rotary seeder according to claim 1, characterized in that: The four sets of fixing seats (2) on the back of the mounting bracket (1) are arranged in a rectangular shape.

5. The seed outlet height adjustment device for a no-till rotary seeder according to claim 1, characterized in that: The inner walls of both the seeding frame (4) and the seeding tube (6) are polished.

6. The seed outlet height adjustment device for a no-till rotary seeder according to claim 1, characterized in that: The multiple sets of seeding tubes (6) at the bottom of the seeding frame (4) are all located directly below the seeding frame (4).

7. The seed outlet height adjustment device for a no-till rotary seeder according to claim 1, characterized in that: The servo linear driver (10) and the laser rangefinder (17) are both electrically connected to an external controller via wires.

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