Fertilizer feeding device of seeding machine

Abstract

The utility model relates to the technical field of agricultural machinery, and discloses a fertilizer feeding device of a seeder, which comprises a stock bin, a plurality of discharge pipes communicated with the stock bin are arranged at the bottom of the stock bin, a ground breaking shovel is arranged on the front side of the bottom end of each discharge pipe, and an anti-blocking mechanism is arranged in each discharge pipe. A driving mechanism for driving the anti-blocking mechanism is arranged on the stock bin; the anti-blocking mechanism comprises a rotating shaft rotationally installed on the discharging pipe, and spiral blades are arranged on the side wall of the rotating shaft in a winding mode. According to the utility model, the anti-blocking mechanisms are arranged in the plurality of discharging pipes and are matched with the driving mechanism, the driving mechanism drives the anti-blocking mechanisms to start during fertilization, and the rotating shafts in the anti-blocking mechanisms drive the spiral blades to rotate and extrude the fertilizer in the discharging pipes, so that the fertilizer is continuously discharged downwards, and the situation that the clayed soil in the discharging pipes is blocked and the fertilizer discharging is influenced is prevented; when the seeding machine advances at a constant speed, the fertilizer can be discharged more uniformly through the spiral blades, and the fertilizing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a fertilizer discharge device of a seed drill. Background Art

[0002] A seeder is a mechanical device used for sowing crops in farmland. It can sow seeds on the land automatically or semi-automatically. There are many types of seeders, including small hand-pushed seeders and large tractor-trailer seeders. The fertilizer discharging device (also called fertilizer device) of the seeder is a device used to fertilize crops while sowing. It is usually combined with a seeder to evenly cover the fertilizer on the land while sowing to provide the nutrients needed by the crops.

[0003] The announcement number CN219322927U discloses a fertilizer discharging device for a wheat planter, comprising a fertilizer discharging machine, a plurality of first feeding pipes connected to the bottom of the fertilizer discharging machine, and a plurality of sliding plates elastically fitted to the bottom of the fertilizer discharging machine, wherein a triangular plowshare is installed at the bottom of the first feeding pipe. The sliding plate is provided so that the rotating plate drives the sliding plate to move under the action of the triangular plowshare, so that the sliding plate covers the fertilizer exposed on the ground through the triangular notch, which improves the effect of wheat fertilization on the one hand and reduces the waste of fertilizer on the other hand.

[0004] The bottom of the first feeding pipe of the above solution is inevitably in contact with the soil. If the soil moisture is high, as the contact time increases, the sticky soil will block the pipe opening of the first feeding pipe, affecting the discharge of the fertilizer.

[0005] Therefore we have proposed a fertilizer discharge device for a seed drill, so as to solve the above-mentioned problems. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] In view of the deficiencies of the prior art in the above background technology, the purpose of the utility model is to provide a fertilizer discharge device for a seed drill to solve the problems raised in the above background technology.

[0008] (II) Technical solution

[0009] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] A fertilizer discharging device of a seed drill comprises a silo, a plurality of discharging pipes connected to the silo are arranged at the bottom of the silo, a soil breaking shovel is arranged at the front side of the bottom end of the discharging pipe, an anti-blocking mechanism is arranged inside the discharging pipe, and a driving mechanism for driving the anti-blocking mechanism is arranged on the silo;

[0011] The anti-blocking mechanism comprises a rotating shaft rotatably mounted on the discharge pipe, and a spiral blade is wound around the side wall of the rotating shaft.

[0012] Preferably, the silo has an inverted bucket-shaped structure.

[0013] Furthermore, the driving mechanism includes an isolation box fixed in the silo and a bracket fixed on both sides of the silo, a rotating rod rotatably installed in the isolation box, a roller rotatably installed at the bottom of the bracket, a first transmission gear coaxially fixed on the roller, both ends of the rotating rod pass through the side wall of the silo and are coaxially fixed with a second transmission gear, the first transmission gear is connected to the second transmission gear through a synchronous belt, the top end of the rotating shaft passes through the isolation box and is fixed with a first bevel gear, and the rotating rod is provided with a second bevel gear meshing with the first bevel gear.

[0014] Furthermore, a spacer is provided between the isolation box and the top end of the discharge pipe, and the isolation box is a cylindrical structure.

[0015] Furthermore, the rotating shaft and the top of the spiral blade both extend to the outside of the discharge pipe.

[0016] Furthermore, a plurality of soil covering mechanisms corresponding to the soil breaking shovels are arranged at the rear side of the silo, and the soil covering mechanisms include an L-shaped bracket, and two oppositely arranged soil covering plates are arranged at the bottom end of the L-shaped bracket.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] By arranging an anti-blocking mechanism inside multiple discharge pipes and cooperating with a driving mechanism, the driving mechanism drives the anti-blocking mechanism to start when fertilizing, and the rotating shaft in the anti-blocking mechanism drives the spiral blade to rotate, squeezing the fertilizer in the discharge pipe so that it is discharged downward continuously, so as to prevent the sticky soil in the discharge pipe from being blocked and affecting the fertilizer discharge. When the seeder moves forward at a uniform speed, the spiral blade can make the fertilizer discharge more uniform, thereby improving the fertilization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the fertilizer discharge device of the seed drill of the utility model;

[0021] Figure 2 This is a cross-sectional view of the internal structure of the fertilizer discharge device of the seed drill of the utility model;

[0022] Figure 3 It is a right side cross-sectional structural schematic diagram of the fertilizer discharging device of the seed drill of the utility model;

[0023] Figure 4 The utility model is a schematic diagram of the structure of the soil covering mechanism of the fertilizer discharge device of the seeder.

[0024] In the figure: silo 1, discharge pipe 2, breaking shovel 3, anti-blocking mechanism 4, rotating shaft 41, spiral blade 42, driving mechanism 5, isolation box 51, rotating rod 52, bracket 53, roller 54, first transmission gear 55, second transmission gear 56, synchronous belt 57, first bevel gear 58, second bevel gear 59, soil covering mechanism 6, L-shaped bracket 61, soil covering plate 62, connecting frame 7. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 As shown, the utility model provides a fertilizer discharge device for a seed drill, comprising a silo 1, a connecting frame 7 for connecting to the seed drill is arranged on the front side of the silo 1, the silo 1 is in an inverted bucket-shaped structure, a plurality of discharge pipes 2 connected to its barrel are arranged at the bottom, a soil-breaking shovel 3 is arranged on the front side of the bottom end of the discharge pipe 2, an anti-blocking mechanism 4 is arranged inside the discharge pipe 2, and the anti-blocking mechanism 4 comprises a rotating shaft 41 rotatably mounted on the discharge pipe 2 and a spiral blade 42 wound on the side wall of the rotating shaft 41; a driving mechanism 5 for rotating the rotating shaft 41 is arranged on the silo 1.

[0027] The silo 1 with an inverted bucket structure is convenient for discharging fertilizer and prevents fertilizer from being retained in the silo 1. The soil-breaking shovel 3 opens a discharge ditch on the soil, and the fertilizer is discharged into the ditch through the discharge pipe 2. Due to the presence of the anti-blocking mechanism 4, under the drive of the driving mechanism 5, the rotating shaft 41 drives the spiral blade 42 to rotate, pushing the fertilizer to be discharged downward continuously, preventing the bottom of the discharge pipe 2 from being blocked.

[0028] The driving mechanism 5 includes an isolation box 51 fixed in the silo 1 and a bracket 53 fixed on both sides of the silo 1. A rotating rod 52 is rotatably installed in the isolation box 51. A roller 54 is rotatably installed at the bottom of the bracket 53. A first transmission gear 55 is coaxially fixed on the roller 54. Both ends of the rotating rod 52 pass through the side wall of the silo 1 and are coaxially fixed with a second transmission gear 56. The first transmission gear 55 is connected to the second transmission gear 56 through a synchronous belt 57. The top of the rotating shaft 41 passes through the isolation box 51 and is fixed with a first bevel gear 58. The rotating rod 52 is provided with a second bevel gear 59 that meshes with the first bevel gear 58.

[0029] When the seeder moves forward, the roller 54 contacts the soil on both sides of the material ditch and rotates. When it rotates, it drives the rotating rod 52 to rotate through the first transmission gear 55, the synchronous belt 57, and the second transmission gear 56. When the rotating rod 52 rotates, it drives the multiple first bevel gears 58 to rotate through the multiple second bevel gears 59, thereby driving the anti-blocking mechanism 4 to start.

[0030] As a preferred technical solution of the utility model: a gap is set between the isolation box 51 and the top of the discharge pipe 2, and the isolation box 51 is a cylindrical structure, and the top of the rotating shaft 41 and the spiral blade 42 both extend to the gap between the isolation box 51 and the top of the discharge pipe 2. The cylindrical isolation box 51 is smooth on the outside to prevent fertilizer accumulation, and the gap between the isolation box 51 and the top of the discharge pipe 2 allows the fertilizer to enter the discharge pipe 2 from the gap. The spiral blade 42 extends to the gap to drive the fertilizer at the bottom of the silo 1 to flow into the discharge pipe 2.

[0031] As a preferred technical solution of the utility model: a plurality of soil covering mechanisms 6 corresponding to the soil breaking shovel 3 are arranged at the rear side of the silo 1, and the soil covering mechanism 6 includes an L-shaped bracket 61, and two oppositely arranged soil covering plates 62 are arranged at the bottom end of the L-shaped bracket 61, and the two soil covering plates 62 are inclined and fitted to each other at one end away from the silo 1, that is, a triangular structure. After the fertilization is completed, the two triangularly arranged soil covering plates 62 will bury the soil turned over by the soil breaking shovel 3 back into the material trench to prevent the fertilizer from volatilizing in the air.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, it should be noted that, in the present invention, unless otherwise clearly specified and limited, the terms such as “set”, “install”, “connected”, “connected”, “fixed”, etc. should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can also be indirectly connected through an intermediate medium.

[0033] In the description of the present invention, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In this article, the meaning of "plurality" is two or more, unless otherwise clearly and specifically limited.

[0034] For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances; for technicians in this field, they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A fertilizer discharging device for a seed drill, comprising a silo (1), characterized in that: The bottom of the silo (1) is provided with a plurality of discharge pipes (2) in communication therewith, a soil-breaking shovel (3) is provided at the front side of the bottom end of the discharge pipe (2), an anti-blocking mechanism (4) is provided inside the discharge pipe (2), and a driving mechanism (5) for driving the anti-blocking mechanism (4) is provided on the silo (1); The anti-blocking mechanism (4) comprises a rotating shaft (41) rotatably mounted on the discharge pipe (2), and a spiral blade (42) is wound around the side wall of the rotating shaft (41).

2. A fertilizer discharging device for a seed drill according to claim 1, characterized in that: The silo (1) is in an inverted bucket-shaped structure.

3. A fertilizer discharging device for a seed drill according to claim 2, characterized in that: The driving mechanism (5) comprises an isolation box (51) fixed in the silo (1) and brackets (53) fixed on both sides of the silo (1); a rotating rod (52) rotatably mounted in the isolation box (51); a roller (54) rotatably mounted at the bottom of the bracket (53); a first transmission gear (55) coaxially fixed on the roller (54); two ends of the rotating rod (52) pass through the side wall of the silo (1) and are coaxially fixed with a second transmission gear (56); the first transmission gear (55) is transmission-connected to the second transmission gear (56) via a synchronous belt (57); the top end of the rotating shaft (41) passes through the isolation box (51) and is fixed with a first bevel gear (58); and a second bevel gear (59) meshing with the first bevel gear (58) is provided on the rotating rod (52).

4. A fertilizer discharging device for a seed drill according to claim 3, characterized in that: A gap is provided between the isolation box (51) and the top end of the discharge pipe (2), and the isolation box (51) is a cylindrical structure.

5. A fertilizer discharging device for a seed drill according to claim 4, characterized in that: The rotating shaft (41) and the top of the spiral blade (42) both extend to the outside of the discharge pipe (2).

6. The fertilizer discharging device of a seed drill according to claim 1, characterized in that: A plurality of soil covering mechanisms (6) corresponding to the soil breaking shovels (3) are arranged at the rear side of the silo (1), and the soil covering mechanisms (6) include an L-shaped bracket (61), and two soil covering plates (62) arranged opposite to each other are arranged at the bottom end of the L-shaped bracket (61).

7. A fertilizer discharging device for a seed drill according to claim 6, characterized in that: The ends of the two covering plates (62) away from the silo (1) are inclined and fitted to each other.

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