Hydraulic grain feeding mechanism of seeding machine

Abstract

The utility model belongs to the field of seeders, and particularly relates to a hydraulic grain feeding mechanism of a seeder. The device is arranged on a machine frame of the seeding machine, a seed fertilizer box is arranged on the machine frame, and the device is characterized by comprising a swing arm, a feeding hopper and a driving unit, the feeding hopper is arranged on the swing arm, the swing arm is hinged to the machine frame to form a hinged shaft, and the driving end of the driving unit is connected with the swing arm and drives the swing arm to swing up and down around the hinged shaft; according to the hydraulic grain feeding mechanism, the labor intensity of seeding preparation work of adding seed fertilizer into the seed fertilizer box can be reduced, the danger coefficient of the seeding preparation work is reduced, and meanwhile, the working efficiency is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of seeders, and specifically relates to a hydraulic grain feeding mechanism for a seeder. Background Technology

[0002] Seeders can perform fertilization simultaneously with sowing, precisely controlling fertilization, sowing depth, and spacing, while reducing the labor intensity of manual sowing and improving sowing efficiency. However, existing seeders still require manual labor to carry seeds and fertilizer on their backs and fill them into the seed and fertilizer boxes during sowing preparation. If the operator lacks strength while carrying the seeds and fertilizer, it is easy for them to fall or be injured by falling seeds and fertilizer. The labor intensity of sowing preparation for existing seeders is still relatively high, with low efficiency and a high risk factor. On the other hand, when the seeder changes direction during sowing, the distance between the seeder and the sown area is entirely based on visual estimation, which can easily lead to missed sowing or double sowing between the sown area and the area to be sown. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the present invention provides a hydraulic grain feeding mechanism for a seeder, which can reduce the labor intensity of the sowing preparation work of adding seed fertilizer to the seed fertilizer box, reduce the risk factor of the sowing preparation work, and effectively improve work efficiency.

[0004] The specific technical solution adopted in this utility model is as follows:

[0005] A hydraulic grain feeding mechanism for a seeder is mounted on the frame of the seeder. The frame is equipped with a seed and fertilizer box. The key features include a swing arm, a feeding hopper, and a drive unit. The feeding hopper is mounted on the swing arm, which is hinged to the frame to form a hinge axis. The drive end of the drive unit is connected to the swing arm and drives the swing arm to swing up and down around the hinge axis. The feeding hopper has the freedom to move up and down by means of the swing arm. The discharge end of the feeding hopper is connected to the inlet end of the seed and fertilizer box.

[0006] The upper end of the swing arm is also equipped with a marking disc for marking in the field.

[0007] The swing arm includes a main rod and a telescopic rod. The main rod is hinged to the frame to form a hinge shaft. One end of the telescopic rod is fitted inside the main rod and has the freedom to be pulled on the main rod. The other end of the telescopic rod is connected to the sliding disc. The main rod is provided with a set screw that matches the telescopic rod.

[0008] The seed and fertilizer box is equipped with a swing arm and a feeding hopper on its left and right sides, respectively.

[0009] A crossbar is suspended on the swing arm, and the hopper is mounted on the crossbar and connected to the swing arm via the crossbar.

[0010] The feeding hopper is connected to the fixed plate, and the fixed plate is connected to the swing arm by means of U-bolts and has the freedom to move along the swing arm.

[0011] The bottom of the feeding hopper forms an angle α with the swing arm, and the angle α is an acute angle.

[0012] The drive unit includes a double-acting hydraulic cylinder and a control valve. The fixed end of the double-acting hydraulic cylinder is hinged to the frame, and the telescopic end is hinged to the swing arm. The control end of the control valve is connected to the controlled end of the double-acting hydraulic cylinder via an oil pipe.

[0013] A throttle valve is installed on the oil pipe.

[0014] The beneficial effects of this utility model are:

[0015] This invention employs a hydraulic feed mechanism added to a seeder. During sowing preparation, the drive unit in the hydraulic feed mechanism drives the swing arm to swing downwards around the hinge axis, lowering the feed hopper and adding fertilizer to it. The drive unit then drives the swing arm to swing upwards around the hinge axis, raising the feed hopper and pouring the fertilizer into the fertilizer box. This hydraulic feed mechanism can transport fertilizer from the ground to the fertilizer box, eliminating the need for manual labor to carry fertilizer onto the machine frame and pour it into the fertilizer box. This effectively reduces the labor intensity and risk factor of sowing preparation, liberating labor and significantly improving the efficiency of sowing preparation.

[0016] The upper end of the swing arm is also equipped with a row marking disc. During sowing, the drive unit drives the swing arm to swing downward, so that the lower end of the row marking disc enters the soil. The tractor pulls the seeder along a straight line in the field to carry out the sowing operation. The row marking disc leaves a mark as the tractor moves, ensuring that the seeder travels in a straight line and that there is a correct adjacent row spacing between rows, preventing missed sowing and double sowing, and ensuring that the row spacing of the planting rows is fixed. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is an assembly diagram of the feeding hopper, the sliding plate, and the swing arm;

[0019] In the attached diagram: 1. Sliding disc, 2. Telescopic rod, 3. Main rod, 4. Double-acting hydraulic cylinder, 5. Frame, 6. Seed and fertilizer box, 7. Hinge shaft, 8. U-bolt, 9. Crossbar, 10. Feed hopper, 11. Set screw, 12. Oil pipe, 13. Throttle valve, 14. T-connector, 15. Quick-change connector, 16. Control valve, 17. Fixed disc. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0021] Specific implementation examples Figure 1-2 As shown, this utility model relates to a hydraulic grain feeding mechanism for a seeder, mounted on the frame 5 of the seeder. The frame 5 houses a seed and fertilizer box 6. Key features include a swing arm, a feeding hopper 10, and a drive unit. The feeding hopper 10 is mounted on the swing arm, which is hinged to the frame 5 to form a hinge shaft 7. The drive end of the drive unit is connected to the swing arm and drives it to swing up and down around the hinge shaft 7. The feeding hopper 10 has the freedom to move up and down due to the swing of the swing arm. The discharge end of the feeding hopper 10 is connected to the feed end of the seed and fertilizer box 6. The frame 5 is suspended from a tractor.

[0022] During sowing preparation, the drive unit drives the swing arm to swing downwards around the hinge shaft 7, causing the feeding hopper 10 to descend and fertilizer to be added into it. The drive unit then drives the swing arm to swing upwards around the hinge shaft 7, raising the feeding hopper 10 and pouring the fertilizer into the fertilizer box 6. This hydraulic feeding mechanism can transport fertilizer from the ground to the fertilizer box, eliminating the need for manual labor to carry fertilizer onto the frame 5 and pour it into the fertilizer box 6. This effectively reduces the labor intensity and risk factor of sowing preparation, freeing up manpower and significantly improving efficiency.

[0023] Furthermore, the upper end of the swing arm is also equipped with a marking disc 1 for marking the field. After the sowing preparation is completed, the drive unit drives the swing arm to swing downward and the lower end of the marking disc 1 enters the soil. The tractor pulls the seeder along a straight line in the field to carry out the sowing operation. The marking disc 1 marks a line as the tractor moves, which can quickly determine the sowing range, ensure that the seeder travels in a straight line and has the correct adjacent row spacing between rows, prevent missed sowing and double sowing, and ensure that the row spacing of the planting rows is fixed.

[0024] This seeder integrates automatic seed and fertilizer feeding and marking, making full use of different working periods and effectively improving the feed efficiency, sowing accuracy, and sowing efficiency of the seeder.

[0025] Furthermore, the swing arm includes a main rod 3 and a telescopic rod 2. The main rod 3 is hinged to the frame 5 to form a hinge shaft 7. One end of the telescopic rod 2 is fitted inside the main rod 3 and has the freedom to be pulled on the main rod 3. The other end of the telescopic rod 2 is connected to the marking plate 1. The main rod 3 is provided with a set screw 11 that matches the telescopic rod 2. The set screw 11 is threadedly connected to the main rod 3. When it is necessary to adjust the extension length of the telescopic rod 2 on the main rod 3, the set screw 11 is moved outward from the main rod 3, and the telescopic rod 2 can then move on the main rod 3. After the extension length of the telescopic rod 2 is adjusted, the set screw 11 is rotated and moved inward from the main rod 3. The set screw 11 presses the telescopic rod 2 tightly against the inner wall of the main rod 3 to complete the fixation of the telescopic rod 2. Adjusting the extension length of the telescopic rod 2 can change the marking position of the marking plate 1 relative to the frame 5 to meet the marking requirements of different planting row spacings; on the other hand, it can also change the overall length of the swing arm, thereby adjusting the feeding height of the feeding hopper 10.

[0026] Preferably, the feeding hopper 10 is connected to the fixed plate 17. The fixed plate 17 is connected to the swing arm by means of U-bolts 8 and has the freedom to move along the swing arm. The fixed plate 17 is arranged parallel to the swing arm. The U-bolts 8 are sleeved on the main rod 3 or the telescopic rod 2 of the swing arm. The end of the U-bolt 8 passes through the fixed plate 17 and is fixed to the main rod 3 or the telescopic rod 2 by means of a nut. By loosening the nut at the end of the U-bolt 8, the U-bolt 8 and the fixed plate 17 can move along the length direction of the swing arm to adjust the height of the feeding hopper 10. After adjustment, the fixed plate 17 is fixed to the main rod 3 or the telescopic rod 2 by means of the U-bolt 8 and the nut.

[0027] Preferably, the seed and fertilizer box 6 is provided with a swing arm and a feeding hopper 10 on the left and right sides respectively, and the feeding hopper 10 is mounted on the crossbar 9. The fixing plate 17 is fixedly connected to the end of the crossbar 9, and the feeding hopper 10 is connected to the fixing plate 17 by means of the crossbar 9. The crossbar 9 is set parallel to the traveling direction of the tractor, and the setting of the crossbar 9 makes the layout of the swing arm on the frame 5 more reasonable.

[0028] Furthermore, the bottom of the feeding hopper 10 forms an angle α with the swing arm, where α is an acute angle, preferably 30-70°, and in this embodiment, α is 45°. When the feeding hopper 10 is close to the ground, the vertical wall of the feeding hopper 10 faces downwards and the discharge end faces upwards, facilitating the holding of seed fertilizer. As the swing arm swings upwards, the discharge end of the feeding hopper 10 gradually becomes horizontal. As the swing arm continues to swing, the discharge end of the feeding hopper 10 is positioned above the seed fertilizer box 6 and tilts towards the seed fertilizer box 6, causing the seed fertilizer in the feeding hopper 10 to automatically slide into the seed fertilizer box 6.

[0029] Preferably, the drive unit includes a double-acting hydraulic cylinder 4 and a control valve 16. The fixed end of the double-acting hydraulic cylinder 4 is hinged to the frame 5, and the telescopic end is hinged to the swing arm. The control end of the control valve 16 is connected to the controlled end of the double-acting hydraulic cylinder 4 via an oil pipe 12. In this embodiment, the control valve 16 is a directional control valve. Since this embodiment has two swing arms, left and right, each swing arm is hinged to the frame 5 via a double-acting hydraulic cylinder 4. The control valve 16 is provided with an oil supply port and an oil return port. The oil supply port and the oil return port are connected to the oil inlet and oil outlet of the two double-acting hydraulic cylinders 4 via a quick connector 15, an oil pipe 12, and a three-way connector 14, respectively. When the control valve 16 is turned forward, the oil pipe 12 supplies oil to the right double-acting hydraulic cylinder 4, and the right double-acting hydraulic cylinder 4 is lifted, raising the right swing arm. The hopper 10 on the right swing arm loads fertilizer and lifts it to the fertilizer box, where it is poured into the fertilizer box. At the same time, the oil pipe 12 connected to the double-acting hydraulic cylinder 4 on the left returns oil, and the double-acting hydraulic cylinder 4 on the left compresses, causing the hopper 10 on the left to fall for adding fertilizer. When the control valve 16 is turned in the opposite direction, the double-acting hydraulic cylinder 4 on the left lifts and the double-acting hydraulic cylinder 4 on the right compresses. The double-acting hydraulic cylinders 4 on both sides alternately to achieve the sequential action of adding fertilizer to the fertilizer box, further improving the efficiency of the sowing preparation work.

[0030] Furthermore, each of the oil pipes 12 is equipped with a throttle valve 13 that is matched with the double-acting hydraulic cylinder 4. The throttle valve 13 can control the flow rate of the oil in the oil pipe 12, thereby controlling the extension and retraction speed of the double-acting hydraulic cylinder 4, ensuring that the swing arm swings smoothly, ensuring work efficiency, and preventing the fertilizer in the hopper 10 from being thrown out.

[0031] When the seeder is transported long distances after completing the sowing operation, the left and right swing arms can be raised and locked onto the frame 5. At this time, the control valve handle is in the neutral position. After the swing arms are raised, the overall width of the machine body is reduced, occupying less space and facilitating transportation.

Claims

1. A hydraulic grain loading mechanism for a seeder, mounted on the frame (5) of the seeder, wherein a seed and fertilizer box (6) is mounted on the frame (5), characterized in that: It includes a swing arm, a feeding hopper (10) and a drive unit. The feeding hopper (10) is mounted on the swing arm. The swing arm is hinged to the frame (5) to form a hinge shaft (7). The drive end of the drive unit is connected to the swing arm and drives the swing arm to swing up and down around the hinge shaft (7). The feeding hopper (10) has the freedom to rise and fall by means of the swing arm. The discharge end of the feeding hopper (10) is connected to the feed end of the seed fertilizer box (6).

2. The hydraulic grain feeding mechanism for a seeder according to claim 1, characterized in that: The upper end of the swing arm is also equipped with a marking disc (1) for marking in the field.

3. The hydraulic grain feeding mechanism for a seeder according to claim 2, characterized in that: The swing arm includes a main rod (3) and a telescopic rod (2). The main rod (3) is hinged to the frame (5) to form a hinge shaft (7). One end of the telescopic rod (2) is fitted inside the main rod (3) and has the freedom to pull on the main rod (3). The other end of the telescopic rod (2) is connected to the sliding plate (1). The main rod (3) is provided with a set screw (11) that matches the telescopic rod (2).

4. The hydraulic grain feeding mechanism for a seeder according to claim 1, characterized in that: The seed and fertilizer box (6) is equipped with a swing arm and a feeding hopper (10) on the left and right sides respectively.

5. The hydraulic grain feeding mechanism for a seeder according to claim 4, characterized in that: A crossbar (9) is suspended on the swing arm, and the feeding hopper (10) is installed on the crossbar (9) and connected to the swing arm by means of the crossbar (9).

6. The hydraulic grain feeding mechanism for a seeder according to claim 1, characterized in that: The feeding hopper (10) is connected to the fixed plate (17), which is connected to the swing arm by means of U-bolts (8) and has the freedom to move along the swing arm.

7. The hydraulic grain feeding mechanism for a seeder according to claim 1, characterized in that: The bottom of the feeding hopper (10) forms an angle α with the swing arm, and the angle α is an acute angle.

8. The hydraulic grain feeding mechanism for a seeder according to claim 1, characterized in that: The drive unit includes a double-acting hydraulic cylinder (4) and a control valve (16). The fixed end of the double-acting hydraulic cylinder (4) is hinged to the frame (5), and the telescopic end is hinged to the swing arm. The control end of the control valve (16) is connected to the controlled end of the double-acting hydraulic cylinder (4) via an oil pipe (12).

9. A hydraulic grain feeding mechanism for a seeder according to claim 8, characterized in that: A throttle valve (13) is installed on the oil pipe (12).

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