A seed sowing machine with adjustable seed quantity

Abstract

The utility model discloses a kind of seeders of adjustable discharging amount, including frame, hopper and discharging pipe are equipped on frame, hopper and discharging pipe between are equipped with discharging mechanism;Discharging mechanism includes shaft seat, the inlet connected with hopper is equipped in the upper end of shaft seat, the outlet connected with discharging pipe is equipped in the lower end, rotationally connected with material roller in shaft seat, transmission shaft is equipped in the middle part of material roller, and the outer circumferential surface of material roller is arranged with a group of material groove;Transmission shaft is slidably equipped with adjusting disc on the both sides of material roller, each pair of adjusting disc is equipped with a group of adjusting block, and slidingly connected in material groove, adjusting block is adapted with material groove, and supporting spring is equipped between adjusting disc and material roller, and the both ends of transmission shaft are respectively screw-connected with adjusting nut, and the outer side end face of tight supporting disc is adjusted, the utility model has the material groove of adjustable capacity, so the discharging amount of seed can be accurately adjusted.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, specifically a seeder with adjustable feed rate. Background Technology

[0002] When using a traditional seeder, the seeds in the hopper first fall into the groove on the outer circumference of the roller inside the shaft seat, and then, as the roller rotates downwards, the seeds fall into the soil through the feed pipe.

[0003] Because the capacity of the groove on the outer circumference of the traditional feed roller is fixed, the amount of feed cannot be adjusted. This makes it difficult to flexibly adapt to the different sizes of seeds that need to be fed more or less. In addition, the seed particle size is also different, so a larger or smaller feed trough needs to be selected to accurately feed the seed amount. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a seeder with an adjustable feed rate, which has an adjustable feed trough, thus enabling precise adjustment of the feed rate.

[0005] The technical solution of this utility model is: a seeder with adjustable feeding amount, including a frame, a hopper and a feeding pipe on the frame, and a feeding mechanism between the hopper and the feeding pipe;

[0006] The feeding mechanism includes a bearing seat, with an inlet at the upper end of the bearing seat connected to a hopper and an outlet at the lower end connected to a feeding pipe. A material roller is rotatably connected inside the bearing seat, and a drive shaft passes through the middle of the material roller. A set of material grooves is arranged around the outer circumference of the material roller.

[0007] Adjusting discs are slidably provided on both sides of the material roller on the drive shaft. Each set of adjusting discs is provided with a set of adjusting blocks that are adapted to the material trough and slidably connected in the material trough. A support spring is provided between the adjusting disc and the material roller. Adjusting nuts that press against the outer end face of the support disc are threaded to both ends of the drive shaft.

[0008] Preferably, the two ends of the roller are respectively provided with spring grooves, the support spring is located in the spring grooves and is fitted on the outside of the rotating shaft.

[0009] Preferably, a set of feeding mechanisms and a feeding pipe connected to the feeding mechanisms are arranged horizontally below the hopper, and the ends of the rotating shafts of two adjacent feeding mechanisms are connected by bushings.

[0010] Preferably, both the inlet and outlet have elongated cross-sections.

[0011] Compared with the prior art, this utility model has the following advantages: When sowing, the seeds in the hopper fall into the feed trough, and then as the feed trough is selected to the lower position, the seeds fall into the soil along the feed pipe;

[0012] Rotating the adjusting nut moves the support plate, thereby adjusting the size of the adjusting block on one side of the support plate inserted into the trough. This adjusts the capacity of the cavity in the middle of the trough, which holds the seeds, thus allowing for adjustment of the amount of material fed by the seeder. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the feeding mechanism;

[0015] Figure 3 for Figure 2 A schematic diagram of the longitudinal section structure;

[0016] Figure 4 This is a schematic diagram of the drive shaft structure;

[0017] Figure 5 This is a schematic diagram showing the interaction between the adjusting disc and the material roller;

[0018] Figure 6 This is a schematic diagram of the regulating disc;

[0019] Figure 7 This is a schematic diagram of the material roller structure;

[0020] In the diagram: 1. Frame, 2. Hopper, 3. Feeding mechanism, 4. Feeding pipe, 5. Feed inlet, 6. Shaft seat, 7. Discharge outlet, 8. Drive shaft, 9. Spring groove, 10. Adjusting nut, 11. Adjusting disc, 12. Material roller, 13. Support spring, 14. Material trough, 15. Adjusting block. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1

[0022] like Figure 1 An adjustable feed rate seeder includes a frame 1, a hopper 2 and a feed pipe 4 on the frame 1, and a feed mechanism 3 between the hopper 2 and the feed pipe 4.

[0023] like Figures 2 to 7 The feeding mechanism 3 includes a bearing 6, with an inlet 5 at the upper end connected to the hopper 2 and an outlet 7 at the lower end connected to the feeding pipe 4.

[0024] A material roller 12 is rotatably connected inside the bearing seat 6. A drive shaft 8 is provided through the middle of the material roller 12. A set of material grooves 14 are arranged around the outer circumference of the material roller 12.

[0025] Adjustment discs 11 are slidably provided on both sides of the material roller 12 on the drive shaft 8. Each adjustment disc 11 is provided with a set of adjustment blocks 15 that are adapted to the material trough 14 and slidably connected in the material trough 14. The space for seeds in the middle of the material trough 14 is adjusted by adjusting the length of the adjustment block 15 inserted into the material trough 14.

[0026] A support spring 13 is provided between the adjusting plate 11 and the material roller 12. The two ends of the material roller 12 are respectively provided with spring grooves 9. The support spring 13 is located in the spring grooves 9 and is fitted on the outside of the rotating shaft.

[0027] The two ends of the drive shaft 8 are respectively threaded with adjusting nuts 10 that tighten the outer end face of the support plate. After loosening the adjusting nuts 10, the adjusting plate 11 can be pushed to move outward under the elastic support of the support spring 13.

[0028] Working principle: The device is suspended on the tractor by the frame 1, and the tractor and the drive shaft 8 are connected by the chain and sprocket. The tractor drives the drive shaft 8 to rotate, and the drive shaft 8 drives the material roller 12 and the adjusting plate 11 to rotate together.

[0029] During sowing, the seeds in the hopper 2 fall into the feed trough 14 along the feed inlet 5, and then as the feed trough 14 rotates to the lower position, the seeds fall into the soil along the feed pipe 4.

[0030] Rotating the adjusting nut 10 can push the support plate to move, thereby adjusting the size of the adjusting block 15 on one side of the support plate inserted into the trough 14, and thus adjusting the capacity of the cavity in the middle of the trough 14 used to hold seeds, thereby realizing the adjustment of the feed amount of the seeder. Example 2

[0031] This embodiment is a further optimization based on the above embodiment, specifically:

[0032] like Figure 1 A set of feeding mechanisms 3 and a feeding pipe 4 connected to the feeding mechanisms 3 are arranged horizontally below the hopper 2. The ends of the rotating shafts of two adjacent feeding mechanisms 3 are connected by bushings. The efficiency of sowing is improved by arranging multiple sets.

[0033] Since the feed trough 14 has a long strip structure, the cross-sections of the feed inlet 5 and the discharge outlet 7 are both long strip structures, which can ensure the maximum feed rate.

[0034] This utility model is not limited to the above-described embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model, and the changed content still falls within the protection scope of this utility model.

Claims

1. A seeder with adjustable feed rate, comprising a frame, wherein a hopper and a feed pipe are provided on the frame, characterized in that: A feeding mechanism is provided between the hopper and the feeding pipe; The feeding mechanism includes a bearing seat, with an inlet at the upper end of the bearing seat connected to a hopper and an outlet at the lower end connected to a feeding pipe. A material roller is rotatably connected inside the bearing seat, and a drive shaft passes through the middle of the material roller. A set of material grooves is arranged around the outer circumference of the material roller. Adjusting discs are slidably provided on both sides of the material roller on the drive shaft. Each set of adjusting discs is provided with a set of adjusting blocks that are adapted to the material trough and slidably connected in the material trough. A support spring is provided between the adjusting disc and the material roller. Adjusting nuts that press against the outer end face of the support disc are threaded to both ends of the drive shaft.

2. The adjustable feed rate seeder according to claim 1, characterized in that: The roller has spring grooves at both ends, and the support spring is located in the spring groove and is fitted on the outside of the rotating shaft.

3. The adjustable feed rate seeder according to claim 1, characterized in that: A set of feeding mechanisms and a feeding pipe connected to the feeding mechanisms are arranged horizontally below the hopper. The ends of the rotating shafts of two adjacent feeding mechanisms are connected by bushings.

4. The adjustable feed rate seeder according to claim 1, characterized in that: Both the inlet and outlet have elongated cross-sections.

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