Self-propelled oat grass seed harvester

By utilizing the crushing roller and airflow separation technology of the self-propelled oat grass seed harvester, the problem of high seed damage rate during manual operation has been solved, achieving efficient and precise seed separation and collection, and improving germination rate and planting quality.

CN224234265UActive Publication Date: 2026-05-15GANSU AGRI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GANSU AGRI UNIV
Filing Date
2025-06-11
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Traditional manual harvesting of oat grass seeds is difficult to control precisely, resulting in a high rate of seed damage, which affects germination rate and planting yield.

Method used

Design a self-propelled oat grass seed harvester that employs a crushing component and a separating component. The crushing roller and airflow are used to separate the seeds from the straw, and the extraction pump and inclined support plate are used to collect the seeds, ensuring that the seeds are separated from impurities.

Benefits of technology

It improves the accuracy and efficiency of seed separation, reduces seed breakage rate, provides high-quality seed sources, and enhances germination rate and crop quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of harvesters, and discloses a self-propelled oat grass seed harvester which comprises a machine frame, a connecting cover is installed on the left side of the machine frame, the interior of the connecting cover is connected with a smashing assembly through a first dredging pipe, the smashing assembly is located at the top of the machine frame, and the smashing assembly acts on harvested oat grass seeds to smash the harvested oat grass seeds. A support is fixedly connected to the right side of the top of the rack, and a separation assembly is arranged on the top of the support. And the crushing assembly comprises a collecting box, the collecting box is installed on the middle side of the top of the rack, and two crushing rollers are rotationally connected into the collecting box. According to the utility model, the crushing roller is driven by the chain wheel to carry out seed separation on oat grass, meanwhile, the activity of the seeds is prevented from being damaged, and meanwhile, the exhaust assembly blows away dust by utilizing airflow, so that the seeds are effectively separated from impurities, and the accuracy and efficiency of seed separation are integrally improved.
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Description

Technical Field

[0001] This utility model relates to the field of harvesters, and in particular to a self-propelled oat grass seed harvester. Background Technology

[0002] In Northwest China, arid climate and infertile soil are major challenges to agricultural production. Therefore, farmers place great emphasis on drought resistance and adaptability when selecting crops. Oat grass, as a drought-resistant forage crop, has become an important component of agricultural production in the region due to its excellent growth characteristics and high nutritional value. Oat grass not only adapts to arid and infertile soils but also completes its growth cycle within a relatively short growing season, demonstrating strong self-recovery capabilities. As a high-quality forage, it is widely used in animal husbandry, especially livestock farming, providing abundant protein and other nutrients to promote the healthy growth of livestock. Simultaneously, oat grass is also an important green manure crop. Through nitrogen fixation by its roots, it can improve soil fertility, increase soil organic matter content, and play a positive role in enhancing the sustainable productivity of the land.

[0003] Traditional oat grass seed harvesting methods largely rely on manual labor. Farmers use simple tools, such as sickles, to cut the oat grass. After harvesting, the seeds need to be threshed using rough methods such as hand-beating and rubbing. However, when doing this manually, farmers rely on their experience and physical strength, making it difficult to precisely control the force. Excessive force can directly cause a surge in seed damage, destroying the internal structure of the seeds and severely affecting seed viability. This, in turn, significantly reduces the germination rate of subsequent sowing, thus easily impacting the yield of oat crops. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a self-propelled oat grass seed harvester, which aims to improve the problem that in the existing technology, threshing is carried out by rough methods such as manual beating and kneading. However, when operating manually, farmers rely on their own experience and physical strength, making it difficult to accurately control the force.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a self-propelled oat grass seed harvester, including a frame, a connecting cover installed on the left side of the frame, the inside of the connecting cover being connected to a crushing component through a first dredging guide tube, the crushing component being located at the top of the frame, the crushing component being used to crush the harvested oat grass seeds, a support fixedly connected to the top right side of the frame, and a separation component being provided at the top of the support.

[0006] The crushing assembly includes a collection box, which is installed on the top middle side of the frame. Two crushing rollers are rotatably connected inside the collection box. One end of each of the two crushing rollers is fixedly connected to a sprocket. A servo motor is installed outside the collection box. The output end of the servo motor is fixedly connected to one of the sprockets. The two sprockets are connected by a chain. An exhaust assembly is provided on the other side of the crushing rollers.

[0007] As a further description of the above technical solution:

[0008] The exhaust assembly includes an air pump, the bottom of which is fixedly connected to the top of the frame. The output end of the air pump is fixedly connected to a connecting pipe, and the end of the connecting pipe away from the air pump is fixedly connected to a guide pipe. The two ends of the guide pipe are respectively connected to two crushing rollers.

[0009] As a further description of the above technical solution:

[0010] The separation assembly includes a storage tank mounted on top of a support frame. An extraction pump is installed outside the storage tank. A second draining pipe is fixedly connected to the output end of the extraction pump. The end of the second draining pipe away from the extraction pump is fixedly connected to the top of a collection tank. A discharge hole is opened at the bottom of the second draining pipe. A bracing plate is installed on the right side of the discharge hole. A micro motor is fixedly connected to the outside of the bracing plate. A rotating rod is fixedly connected to the output end of the micro motor. Two scrapers are fixedly connected to the outside of the rotating rod. A separation cylinder is fixedly connected to the top of the second draining pipe.

[0011] As a further description of the above technical solution:

[0012] Multiple crushing blades are fixedly connected to the outside of the crushing roller, and multiple unblocking holes are provided on the outside of the crushing roller. The guide pipe is connected to the unblocking holes.

[0013] As a further description of the above technical solution:

[0014] The storage bin is equipped with a flip-top cover, and the bottom of the frame is equipped with a self-propelled device.

[0015] As a further description of the above technical solution:

[0016] A collection roller is rotatably connected inside the connecting cover, and a discharge pipe is fixedly connected to the outside of the collection box.

[0017] As a further description of the above technical solution:

[0018] The diagonal brace has multiple holes on its exterior.

[0019] As a further description of the above technical solution:

[0020] The separation cylinder extends to the top of the storage tank.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the crushing roller can separate oat grass seeds under the drive of the sprocket, while avoiding damage to the seed activity. At the same time, the exhaust component uses airflow to blow away the dust, so that the seeds and impurities are effectively separated, thus improving the overall accuracy and efficiency of seed separation.

[0023] 2. In this utility model, the seeds are extracted from the collection box by an extraction pump and then fed into the storage box by a slanted support plate to ensure that the collected seeds have few impurities, thus providing a high-quality seed source for subsequent oat planting and improving the germination rate and crop quality. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a self-propelled oat grass seed harvester proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the storage box of a self-propelled oat grass seed harvester proposed in this utility model;

[0026] Figure 3 This is a cross-sectional view of the collection box of a self-propelled oat grass seed harvester proposed in this utility model;

[0027] Figure 4 This is a cross-sectional view of the second sifting tube of a self-propelled oat grass seed harvester proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the inclined support plate of a self-propelled oat grass seed harvester proposed in this utility model.

[0029] Legend:

[0030] 1. Frame; 2. Connecting cover; 3. First dredging guide; 4. Crushing assembly; 41. Collection box; 42. Crushing roller; 43. Sprocket; 44. Servo motor; 45. Chain; 46. Crushing disc; 5. Exhaust assembly; 51. Air pump; 52. Connecting pipe; 53. Guide pipe; 54. Unblocking hole; 6. Support; 7. Separation assembly; 71. Storage box; 72. Extraction pump; 73. Second dredging guide; 74. Discharge hole; 75. Inclined brace; 76. Micro motor; 77. Rotating rod; 78. Scraper; 79. Hole; 710. Separation cylinder; 8. Flip cover; 9. Self-propelled device; 10. Collection roller; 11. Discharge pipe. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-3 An embodiment of this utility model is provided: a self-propelled oat grass seed harvester, including a frame 1, a connecting cover 2 installed on the left side of the frame 1, the inside of the connecting cover 2 being connected to a crushing component 4 through a first dredging guide tube 3, the crushing component 4 being located at the top of the frame 1, the crushing component 4 being used to crush the harvested oat grass seeds, a support 6 being fixedly connected to the top right side of the frame 1, and a separation component 7 being provided at the top of the support 6;

[0033] As the harvester moves forward, the plant is rolled into the connecting cover 2 by the collecting roller 10. The crushing component 4 can separate the harvested oat grass, so that the seeds are separated from the oat grass. The separation component 7 is installed on one side of the crushing component 4 to facilitate the next step of processing.

[0034] The crushing assembly 4 includes a collection box 41, which is installed on the top middle side of the frame 1. Two crushing rollers 42 are rotatably connected inside the collection box 41. One end of each crushing roller 42 is fixedly connected to a sprocket 43. A servo motor 44 is installed outside the collection box 41. The output end of the servo motor 44 is fixedly connected to one of the sprockets 43. The two sprockets 43 are connected by a chain 45. An exhaust assembly 5 is provided on the other side of the crushing roller 42. A collection roller 10 is rotatably connected inside the connecting cover 2. A discharge pipe 11 is fixedly connected to the outside of the collection box 41.

[0035] The collection box 41 serves as the chamber of the crushing component 4, providing a closed and stable operating space for the crushing operation. The sprocket 43 is linked by the chain 45, and driven by the servo motor 44, it drives the two crushing rollers 42 to separate the oat grass seeds. The support 6 allows the storage box 71 to be positioned above.

[0036] Reference Figures 2-3 The exhaust assembly 5 includes an air pump 51. The bottom of the air pump 51 is fixedly connected to the top of the frame 1. The output end of the air pump 51 is fixedly connected to a connecting pipe 52. The end of the connecting pipe 52 away from the air pump 51 is fixedly connected to a guide pipe 53. The two ends of the guide pipe 53 are respectively connected to two crushing rollers 42. Multiple crushing blades 46 are fixedly connected to the outside of the crushing rollers 42. Multiple unblocking holes 54 are provided on the outside of the crushing rollers 42. The guide pipe 53 is connected to the unblocking holes 54.

[0037] The airflow generated by the air pump 51 is connected to the guide pipe 53 through the connecting pipe 52, so that the airflow is blown out from the air outlet 54 on the crushing roller 42. When the oat straw is separated from the seeds, the crushed straw is blown out of the collection box 41 by the airflow.

[0038] Reference Figures 4-5 The separation component 7 includes a storage tank 71, which is mounted on the top of the support 6. A pump 72 is installed outside the storage tank 71. A second drain pipe 73 is fixedly connected to the output end of the pump 72. The end of the second drain pipe 73 away from the pump 72 is fixedly connected to the top of the collection tank 41. A discharge hole 74 is opened at the bottom of the second drain pipe 73. A bracing plate 75 is installed on the right side of the discharge hole 74. A micro motor 76 is fixedly connected to the outside of the bracing plate 75. A rotating rod 77 is fixedly connected to the output end of the micro motor 76. Two scrapers 78 are fixedly connected to the outside of the rotating rod 77. A separation cylinder 710 is fixedly connected to the top of the second drain pipe 73. A flip cover 8 is installed on the outside of the storage tank 71. A self-propelled device 9 is installed at the bottom of the frame 1. Multiple holes 79 are opened on the outside of the bracing plate 75. The separation cylinder 710 extends to the top of the storage tank 71.

[0039] The storage bin 71 in the separation component 7 is used to harvest seeds. At the same time, the seeds separated by the collection bin 41 are extracted by the second dredging guide 73 through the extraction pump 72. When the extracted seeds are blocked by the inclined support plate 75, the seeds fall into the storage bin 71 from the discharge hole 74. The inclined support plate 75 is located on the right side of the discharge hole 74. The holes 79 on the inclined support plate 75 allow impurities to be separated from the seeds. The micro motor 76 drives the rotating rod 77 to rotate, which drives the scraper 78 to clean in time, keep the screening channel unobstructed, and ensure that the seeds entering the storage bin 71 are free of impurities.

[0040] Working principle: When harvesting oat grass seeds, the self-propelled device 9 drives the harvester forward in the field. The connecting cover 2 at the front end of the frame 1 first contacts the oat grass plants. The collecting roller 10 connected inside the connecting cover 2 rotates, rolling the oat grass plants into the connecting cover 2 and conveying them to the crushing component 4 through the first shunting guide tube 3. At the same time, the servo motor 44 is powered on and runs, thereby driving the sprocket 43 to rotate. The sprocket 43 is connected by a chain 45, so power can be transmitted. The two crushing rollers 42 rotate synchronously in opposite directions, separating the oat grass seeds that have entered the collection box 41. At the same time, after the air pump 51 is started, the airflow enters the guide tube 53 through the connecting pipe 52, and the airflow is blown out from the shunting holes 54 on the crushing rollers 42, so that the separated oat grass fragments are blown out from the discharge pipe 11.

[0041] Secondly, with the start of the extraction pump 72, the separated seeds are drawn into the second dredging pipe 73 and, blocked by the inclined support plate 75, enter the storage bin 71 through the discharge hole 74, while the smaller oat straws are discharged outward through the separation cylinder 710. When the holes 79 on the inclined support plate 75 are blocked, the micro motor 76 is started, causing the drive rod 77 to rotate. The drive rod 77 drives the scraper 78 to rotate, allowing the scraper 78 to scrape away the debris attached to the holes 79, thus ensuring that the smaller oat straws can be effectively discharged outward.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-propelled oat grass seed harvester, comprising a frame (1), characterized in that: A connecting cover (2) is installed on the left side of the frame (1). The inside of the connecting cover (2) is connected to the crushing component (4) through the first dredging tube (3). The crushing component (4) is located at the top of the frame (1). The crushing component (4) is used to crush the harvested oat grass seeds. A bracket (6) is fixedly connected to the top right side of the frame (1). A separation component (7) is provided on the top of the bracket (6). The crushing assembly (4) includes a collection box (41), which is installed on the top middle side of the frame (1). Two crushing rollers (42) are rotatably connected inside the collection box (41). One end of each of the two crushing rollers (42) is fixedly connected to a sprocket (43). A servo motor (44) is installed outside the collection box (41). The output end of the servo motor (44) is fixedly connected to one of the sprockets (43). The two sprockets (43) are connected by a chain (45). An exhaust assembly (5) is provided on the other side of the crushing roller (42).

2. The self-propelled oat grass seed harvester according to claim 1, characterized in that: The exhaust assembly (5) includes an air pump (51), the bottom of which is fixedly connected to the top of the frame (1). The output end of the air pump (51) is fixedly connected to a connecting pipe (52), and the end of the connecting pipe (52) away from the air pump (51) is fixedly connected to a guide pipe (53). The two ends of the guide pipe (53) are respectively connected to two crushing rollers (42).

3. The self-propelled oat grass seed harvester according to claim 1, characterized in that: The separation component (7) includes a storage tank (71), which is installed on the top of the support (6). An extraction pump (72) is provided outside the storage tank (71). A second drainage pipe (73) is fixedly connected to the output end of the extraction pump (72). The end of the second drainage pipe (73) away from the extraction pump (72) is fixedly connected to the top of the collection box (41). A discharge hole (74) is opened at the bottom of the second drainage pipe (73). A bracing plate (75) is provided on the right side of the discharge hole (74). A micro motor (76) is fixedly connected to the outside of the bracing plate (75). A rotating rod (77) is fixedly connected to the output end of the micro motor (76). Two scrapers (78) are fixedly connected to the outside of the rotating rod (77). A separation cylinder (710) is fixedly connected to the top of the second drainage pipe (73).

4. A self-propelled oat grass seed harvester according to claim 2, characterized in that: Multiple crushing plates (46) are fixedly connected to the outside of the crushing roller (42), and multiple unblocking holes (54) are provided on the outside of the crushing roller (42). The guide pipe (53) is connected to the unblocking holes (54).

5. A self-propelled oat grass seed harvester according to claim 3, characterized in that: The storage bin (71) is equipped with a flip cover (8) on the outside, and the frame (1) is equipped with a self-propelled device (9) at the bottom.

6. A self-propelled oat grass seed harvester according to claim 1, characterized in that: The connecting cover (2) is rotatably connected to a collecting roller (10), and the collecting box (41) is fixedly connected to a discharge pipe (11).

7. A self-propelled oat grass seed harvester according to claim 3, characterized in that: The inclined brace (75) has multiple holes (79) on its exterior.

8. A self-propelled oat grass seed harvester according to claim 3, characterized in that: The separating cylinder (710) extends to the top of the storage tank (71).