A forage grass seed harvesting mechanism

Abstract

The present invention discloses a forage grass seed harvesting mechanism, which includes a machine base, a harvesting wheel, a seed collecting groove and an air suction mechanism; the harvesting wheel includes a central part, and also includes a plurality of seed collecting components arranged around the central part, the seed collecting components include a plurality of fixed seed collecting rods dispersedly arranged in the left and right directions and fixed relative to the central part; the seed collecting component also includes a transverse rod that can move left and right relative to the central part, and the transverse rod is fixed with movable seed collecting rods that are equal in number and correspond to the fixed seed collecting rods in a one-to-one manner; the transverse movement of the transverse rod can make the fixed seed collecting rods relatively close to and relatively separated from the corresponding fixed seed collecting rods; the forage grass seed harvesting mechanism also includes a driving mechanism for driving the transverse rod to move. The forage grass seed harvesting mechanism of the present invention can facilitate the rod group to intervene between forage grasses and improve the harvest rate of forage grass seeds by timely changing the distance of the rod group included in the seed collecting component. Since only grass seeds are harvested and the forage grass itself is retained, subsequent animal husbandry will not be affected.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural harvesting machinery, in particular to a forage grass seed harvesting mechanism. Background Art

[0002] Grassland forage is the cornerstone of animal husbandry development. It not only provides essential nutrients for livestock, but also directly affects the health and production performance of animals. High-quality forage can significantly increase the milk production and meat quality of livestock such as dairy cows and sheep, thereby increasing the economic benefits of animal husbandry. At the same time, different types of forage can adapt to different climatic conditions and soil environments, which helps maintain biodiversity and stabilize ecological balance. In addition, through reasonable rotation and management, forage can also improve soil structure, reduce soil erosion, and promote sustainable development.

[0003] The harvest of forage grass seeds is also crucial. It is not only related to the renewal and optimization of pasture vegetation in the new year, but also the foundation of forage planting. High-quality grass seeds can ensure that the growth cycle of forage grass is longer, the resistance is stronger, and the yield is higher, thus providing a continuous and stable source of feed for animal husbandry. Harvesting grass seeds in a timely and appropriate amount can also effectively control the occurrence of pests and diseases and avoid grassland degradation. Therefore, scientific management and technology application are particularly important in the process of forage grass seed harvesting, which plays an irreplaceable role in ensuring the long-term healthy development of animal husbandry.

[0004] In the prior art, the grass seed harvesting is generally performed by using a stripping cutter as shown in patent CN114793603A. This cutter mainly strips the grass seeds by means of a roller, and the roller has sawtooth-shaped plate teeth. In actual operation, due to the small tooth height of the plate teeth, the cutter can only act on the top of the grass, so the harvest rate is low and the grass is easily damaged. In addition, patent CN101828471A discloses a grass seed harvester that harvests grass seeds by means of a brush. This method can only act on grass seeds that are easy to harvest, and it is difficult to achieve a high harvesting effect for grass seeds that are difficult to separate from the grass. Summary of the invention

[0005] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a forage grass seed harvesting mechanism that can efficiently harvest forage grass and has a high harvest rate.

[0006] Technical solution: To achieve the above-mentioned purpose, the forage grass seed harvesting mechanism of the present invention comprises a machine base, a harvesting wheel, a seed collecting tank and an air suction mechanism; the harvesting wheel comprises a central part, and also comprises a plurality of seed collecting components arranged around the central part, the seed collecting components comprising a plurality of fixed seed collecting rods dispersedly arranged in the left and right directions and fixed relative to the central part;

[0007] The seed collecting component also includes a transverse rod that can move left and right relative to the central part, and the transverse rod is fixed with movable seed collecting rods that are equal in number and correspond one to one to the fixed seed collecting rods; the lateral movement of the transverse rod can make the fixed seed collecting rods relatively close to and relatively separated from the corresponding fixed seed collecting rods; the forage seed harvesting mechanism also includes a driving mechanism for driving the transverse rod to move.

[0008] In the above structure, in the rod group composed of all the fixed seed collecting rods and the movable seed collecting rods included in the same seed collecting assembly, the size of the gap in the rod group can be changed due to the lateral movement of the transverse rod. When the movable seed collecting rod is in contact with the corresponding fixed seed collecting rod, the gap formed in the rod group is larger. At this time, the rod group of the seed collecting assembly is easier to intervene between the forage grass; when the movable seed collecting rod is separated from the corresponding fixed seed collecting rod, the gap formed between the rod groups becomes significantly smaller, which makes it easier to separate the grass seeds from the forage grass. The grass seeds separated from the forage grass can slide along the rod group and will not fall through the gap of the rod group. During actual operation, when the rod group of the seed-collecting assembly rotates with the middle part, the rod group intervenes between the grass from bottom to top, that is, lifts up the grass from the root of the grass. In this process, the movable seed-collecting rod is in contact with the corresponding fixed seed-collecting rod; then, after the rod group has intervened between the lower part of the grass, the movable seed-collecting rod is separated from the corresponding fixed seed-collecting rod to reduce the gap formed between the rod groups. In this way, when the rod group continues to rotate with the middle part, it can better pull the grass seeds off the grass.

[0009] Furthermore, the driving mechanism includes a cam fixedly mounted relative to the machine base, and a cam groove is formed on the outer surface of the cam; a roller is mounted on the transverse rod, and the roller is placed in the cam groove and can move in the cam groove.

[0010] The cam groove includes a first circumferential groove and a second circumferential groove extending along the circumferential direction, the first circumferential groove and the second circumferential groove are staggered in the axial direction, and the two ends of the first circumferential groove are respectively connected to the two ends of the second circumferential groove through an oblique groove. When the roller is placed in the first circumferential groove, the movable seed-collecting rod is in contact with the corresponding fixed seed-collecting rod, and when the roller is placed in the second circumferential groove, the movable seed-collecting rod is separated from the corresponding fixed seed-collecting rod. Preferably, relative to the vertical direction, the second circumferential groove enables the fixed seed-collecting rod to rotate forward at a position inclined 20° forward and downward at its root position to act on the forage, until the movable seed-collecting rod is separated from the corresponding fixed seed-collecting rod in the process of reaching the vertical upward position; then, the first circumferential groove enables the same pair of seed-collecting rods to be in contact with each other.

[0011] Furthermore, the air suction mechanism includes a cover body covering the top of the harvesting wheel, and also includes a fan group placed in the cover body; the upper side of the cover body is provided with a grass discharge port.

[0012] Furthermore, the central part is a hollow structure, and a through groove is provided on the central part corresponding to the root of each group of the seed collecting components; the seed collecting groove is built into the central part, and the seed collecting groove is fixedly installed relative to the machine base. In this way, when the harvesting wheel rotates, the grass seeds collected by each seed collecting component can roll into the seed collecting groove along the rod group as the rod group rotates to a specific angle, thereby realizing continuous collection of grass seeds.

[0013] Furthermore, an augers is rotatably installed in the seed collecting tank. The augers can actively run to gather the grass seeds to one end of the seed collecting tank, thereby realizing the collection of the grass seeds and facilitating operations such as bagging.

[0014] Furthermore, the fixed seed collecting rod and the movable seed collecting rod are both V-shaped structures, and their turning angles are obtuse. With this structure, on the one hand, when the harvesting wheel rotates, it is more convenient for the end of the seed collecting rod in the rod group to enter between the forage grasses, and on the other hand, when the fixed seed collecting rod and the movable seed collecting rod are in the process of separating the grass seeds from the forage grasses, the ends of the seed collecting rods are tilted upward, which can prevent the grass seeds from falling from the front end of the seed collecting rods, thereby effectively reducing the loss.

[0015] Beneficial effects: The forage grass seed harvesting mechanism of the present invention has the following beneficial effects:

[0016] (1) The forage seed harvesting mechanism of the present invention can facilitate the rod group to intervene in the forage grass by timely changing the distance of the rod group included in the seed collecting component. The degree of intervention is relatively deep, and the forage grass seeds can be harvested in full section, thereby improving the harvest rate of forage grass seeds. Since only the grass seeds are harvested and the forage grass itself is retained, subsequent animal husbandry will not be affected.

[0017] (2) By setting the cam and the roller, the transverse rod can be moved back and forth regularly, so that the size of the gap between the rod groups can be changed in time with high precision, and the harvesting effect can be maintained during long-term harvesting operations.

[0018] (3) The air suction mechanism can suck away the broken grass and other impurities brought up by the harvesting wheel, preventing these impurities from entering the seed collecting trough, thereby achieving preliminary cleaning of grass seeds and reducing the difficulty of subsequent cleaning.

[0019] (4) The seed collecting trough is placed in the middle part, which can improve the compactness of the structure, facilitate the collection of grass seeds, reduce intermediate links, and reduce the loss rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of a forage grass seed harvesting mechanism;

[0021] Figure 2 This is a front view of the structure of the harvesting wheel;

[0022] Figure 3 This is a three-dimensional structural diagram of the harvesting wheel part;

[0023] Figure 4 It is a first cross-sectional structural diagram of the harvesting wheel part;

[0024] Figure 5 This is the second cross-sectional structural diagram of the harvesting wheel part.

[0025] In the figure: 1-harvesting wheel; 11-center part; 11a-through groove; 1A-seed collecting assembly; 12-fixed seed collecting rod; 13-transverse rod; 14-movable seed collecting rod; 2-seed collecting groove; 3-air suction mechanism; 31-cover body; 32-fan group; 4-driving mechanism; 41-cam; 41a-first circumferential groove; 41b-second circumferential groove; 42-roller; 10-machine base; 5-auger. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] like Figure 1 The forage grass seed harvesting mechanism shown includes a machine base 10 , a harvesting wheel 1 , a seed collecting trough 2 and an air suction mechanism 3 .

[0028] like Figure 2 As shown, the harvesting wheel 1 includes a central portion 11, and also includes a plurality of seed collecting components 1A arranged around the central portion 11, and the seed collecting components 1A include a plurality of fixed seed collecting rods 12 dispersedly arranged in the left-right direction and fixed relative to the central portion 11;

[0029] The seed collecting component 1A also includes a transverse rod 13 that can move left and right relative to the central part 11, and the transverse rod 13 is fixed with movable seed collecting rods 14 that are equal in number and correspond one to one to the fixed seed collecting rods 12; the lateral movement of the transverse rod 13 can make the fixed seed collecting rods 12 relatively close to and relatively separated from the corresponding fixed seed collecting rods 12; the forage grass seed harvesting mechanism also includes a driving mechanism 4 that drives the transverse rod 13 to move.

[0030] In the above structure, in the rod group composed of all the fixed seed collecting rods 12 and the movable seed collecting rods 14 included in the same seed collecting component 1A, the size of the gap in the rod group can be changed due to the lateral movement of the transverse rod 13. When the movable seed collecting rod 14 is in contact with the corresponding fixed seed collecting rod 12, the gap formed in the rod group is larger. At this time, the rod group of the seed collecting component 1A is more likely to intervene between the pasture grass; when the movable seed collecting rod 14 is separated from the corresponding fixed seed collecting rod 12, the gap formed between the rod groups becomes significantly smaller, which makes it easier to separate the grass seeds from the pasture grass. The grass seeds separated from the pasture grass can slide along the rod group and will not fall through the gap of the rod group. During actual operation, when the rod group of the seed-collecting assembly 1A rotates with the middle part 11, the rod group intervenes between the grass from bottom to top, that is, lifts up the grass from the root of the grass. In this process, the movable seed-collecting rod 14 is in contact with the corresponding fixed seed-collecting rod 12; then, after the rod group has intervened between the lower part of the grass, the movable seed-collecting rod 14 is separated from the corresponding fixed seed-collecting rod 12 to reduce the gap formed between the rod groups. In this way, when the rod group continues to rotate with the middle part 11, it can better pull the grass seeds off the grass.

[0031] The forage seed harvesting mechanism of the present invention can facilitate the rod group to intervene between the forage grasses and improve the harvesting rate of forage grass seeds by timely changing the distance of the rod group included in the seed collecting assembly 1A. Since only the grass seeds are harvested and the forage grass itself is retained, subsequent animal husbandry will not be affected.

[0032] like Figure 3 As shown, the driving mechanism 4 includes a cam 41 fixedly mounted relative to the machine base 10, and a cam groove is formed on the outer surface of the cam 41; a roller 42 is mounted on the transverse rod 13, and the roller 42 is placed in the cam groove and can move in the cam groove.

[0033] By providing the cam 41 and the roller 42, the transverse rod 13 can be regularly reciprocated and laterally moved, so that the size of the gap between the rod groups can be changed in a timely manner with high precision, and the harvesting effect can be maintained during long-term harvesting operations.

[0034] The cam groove includes a first circumferential groove 41a and a second circumferential groove 41b extending in the circumferential direction, wherein the first circumferential groove 41a and the second circumferential groove 41b are staggered in the axial direction, and the two ends of the first circumferential groove 41a are respectively connected to the two ends of the second circumferential groove 41b through an oblique groove. When the roller 42 is placed in the first circumferential groove 41a, the movable seed-collecting rod 14 is in contact with the corresponding fixed seed-collecting rod 12, and when the roller 42 is placed in the second circumferential groove 41b, the movable seed-collecting rod 14 is separated from the corresponding fixed seed-collecting rod 12. Preferably, relative to the vertical direction, the second circumferential groove 41b enables the fixed seed-collecting rod 12 to rotate forward from its root position at a forward downward tilt of 20° to act on the forage, until the movable seed-collecting rod 14 is separated from the corresponding fixed seed-collecting rod 12 in the process of moving upward; then, the first circumferential groove 41a enables the same pair of seed-collecting rods to be in contact with each other.

[0035] like Figure 1 As shown, the air suction mechanism 3 includes a cover body 31 covering the top of the harvesting wheel 1, and also includes a fan group 32 placed in the cover body 31; the upper side of the cover body 31 has a grass discharge port.

[0036] When in use, the air suction mechanism 3 can suck away the broken grass and other impurities brought up by the harvesting wheel 1, prevent these impurities from entering the seed collecting tank 2, achieve preliminary cleaning of grass seeds, and reduce the difficulty of subsequent cleaning.

[0037] Preferably, if Figure 4-5 As shown, the central portion 11 is a hollow structure, and a through slot 11a is provided on the central portion 11 at a position corresponding to the root of each group of the seed collecting components 1A; the seed collecting slot 2 is built into the central portion 11, and the seed collecting slot 2 is fixedly installed relative to the machine base 10. In this way, when the harvesting wheel 1 rotates, the grass seeds collected by each seed collecting component 1A can roll into the seed collecting slot 2 along the rod group as the rod group rotates to a specific angle, thereby realizing continuous collection of grass seeds.

[0038] A auger 5 is rotatably installed in the seed collecting tank 2. The active operation of the auger 5 can gather the grass seeds to one end of the seed collecting tank 2, thereby realizing the collection of the grass seeds and facilitating operations such as bagging.

[0039] The fixed seed collecting rod 12 and the movable seed collecting rod 14 are both V-shaped structures, and their turning angles are obtuse. With this structure, on the one hand, when the harvesting wheel 1 rotates, it is more convenient for the ends of the seed collecting rods in the rod group to enter between the forage grasses. On the other hand, when the fixed seed collecting rod 12 and the movable seed collecting rod 14 separate the grass seeds from the forage grasses, the ends of the seed collecting rods are tilted upward, which can prevent the grass seeds from falling from the front ends of the seed collecting rods, thereby effectively reducing the loss.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A forage grass seed harvesting mechanism, comprising a machine base (10), a harvesting wheel (1), a seed collecting groove (2) and an air suction mechanism (3); the harvesting wheel (1) comprises a central portion (11), and also comprises a plurality of seed collecting components (1A) arranged around the central portion (11), the seed collecting components (1A) comprising a plurality of fixed seed collecting rods (12) dispersedly arranged in the left-right direction and fixed relative to the central portion (11); the characteristics are: The seed collecting assembly (1A) further comprises a transverse rod (13) capable of moving leftward and rightward relative to the central portion (11); the transverse rod (13) is fixed with movable seed collecting rods (14) of the same number and corresponding to the fixed seed collecting rods (12); the transverse movement of the transverse rod (13) can make the movable seed collecting rods (14) relatively close to and relatively separated from the corresponding fixed seed collecting rods (12); the forage grass seed harvesting mechanism further comprises a driving mechanism (4) for driving the transverse rod (13) to move; The driving mechanism (4) comprises a cam (41) fixedly mounted relative to the machine base (10), a cam groove being formed on an outer surface of the cam (41); a roller (42) is mounted on the transverse rod (13), the roller (42) being disposed in the cam groove and being able to move in the cam groove.

2. The forage grass seed harvesting mechanism according to claim 1, characterized in that: The air suction mechanism (3) comprises a cover body (31) covering the upper part of the harvesting wheel (1), and also comprises a fan group (32) arranged in the cover body (31); the upper side of the cover body (31) is provided with a grass discharge port.

3. The forage grass seed harvesting mechanism according to claim 1, characterized in that: The central portion (11) is a hollow structure, and a through groove (11a) is provided on the central portion (11) at a position corresponding to the root of each group of the seed collecting components (1A); the seed collecting groove (2) is built into the central portion (11), and the seed collecting groove (2) is fixedly installed relative to the machine base (10).

4. The forage grass seed harvesting mechanism according to claim 3, characterized in that: A turret (5) is rotatably mounted in the seed collecting tank (2).

5. The forage grass seed harvesting mechanism according to claim 1, characterized in that: The fixed seed collecting rod (12) and the movable seed collecting rod (14) are both V-shaped structures, and their turning angles are obtuse angles.

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