Seed cleaning machine

Abstract

The utility model discloses a seed cleaning and sorting machine which comprises a machine frame and a machine shell installed on the machine frame. The upper portion of the machine shell is provided with a stock bin. The end, used for discharging impurities, of the machine shell is called a rear end, and the other end opposite to the rear end is called a front end. A separating mechanism is arranged in the machine shell and located below the discharging port of the stock bin. The separating mechanism comprises a pivot which is rotationally mounted on the machine shell and is positioned at the front end of the discharge hole of the stock bin, a plurality of comb rods which are fixedly connected to the pivot at intervals, and a tension spring; one end of the comb tooth rod is fixedly connected with the pivot, and the other end of the comb tooth rod extends towards the rear discharging end of the stock bin and is lower than the other end; one end of the tension spring is fixedly connected with the inner wall of the machine shell, and the other end of the tension spring is fixedly connected with one comb tooth rod. The seed cleaning device has the advantages that long stems and leaves can be separated from seeds, and the cleanliness of the cleaned seeds is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seed cleaning equipment, and particularly relates to a seed cleaner. Background Art

[0002] In modern agricultural production, the quality of seeds is directly related to the yield and quality of crops. Therefore, efficient and precise seed cleaning technology has become one of the key links to improve agricultural production efficiency. Most traditional seed treatment methods rely on manual screening, which is not only time-consuming and laborious, but also difficult to meet the ideal purity and uniformity standards, affecting the sowing effect and the growth consistency of subsequent crops. With the progress of technology, seed cleaning machines have emerged, which use the principle of aerodynamics to remove impurities from seeds. The utility model patent publication number CN219378002U in China discloses a fine seed screening and air separation device for seed cultivation. Since some long and light impurities such as stems, leaves, and ears will inevitably be mixed into the seeds during the threshing process, during the air separation process of the seeds, for some longer stems and leaves, due to the continuous falling of the seeds, the longer stems and leaves are wrapped by the seeds. Especially for the vertically falling stems and leaves, their contact surface with the separation air flow is small, and they cannot be effectively separated from the seeds, resulting in the ineffective separation of some longer stems and leaves mixed in the seeds. Therefore, it needs to be improved. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a seed cleaner.

[0004] To solve the above technical problems, the technical solution of the utility model is as follows:

[0005] A seed cleaner includes a frame, and a casing installed on the frame and having a hopper at the upper part; one end of the casing for discharging impurities is called the rear end, and the other end opposite to it is called the front end; a separation mechanism is arranged inside the casing and below the discharge port of the hopper; the separation mechanism includes a pivot rotatably installed on the casing and at the front end of the discharge port of the hopper, a plurality of comb-shaped rods fixedly connected to the pivot at intervals, and a tension spring; one end of the comb-shaped rod is fixedly connected to the pivot, and the other end extends towards the rear end of the hopper for discharging seeds and the height of this end is lower than that of the other end; one end of the tension spring is fixedly connected to the inner wall of the casing, and the other end is fixedly connected to one of the comb-shaped rods.

[0006] Preferably, brackets are arranged on both sides of the casing, and both ends of the pivot are rotatably installed on the corresponding brackets through bearing seats.

[0007] Preferably, an arc-shaped baffle is arranged at the tail end of the casing, the front end of the arc-shaped baffle is fixedly connected to the casing, and both sides of the arc-shaped baffle are fixedly connected to the frame through support rods.

[0008] Preferably, a pull ring one is fixedly connected inside the casing, and a pull ring two is fixedly connected to one of the comb tooth rods; two ends of the tension spring are respectively fixedly connected to the pull ring one and the pull ring two.

[0009] Preferably, the inclination angle of the comb tooth rod is 30° - 45°.

[0010] Adopting the above technical solution, the following advantages are achieved:

[0011] By providing the comb tooth rod in the present utility model, the comb tooth rod can block longer stems and leaves, changing the falling state of the longer stems and leaves. After the longer stems and leaves are blocked by the comb tooth rod, they have a larger contact surface with the separation air flow at the position of the comb tooth rod, thereby realizing the separation of the longer stems and leaves from the seeds and further improving the purity of the seeds after cleaning. Description of the Drawings

[0012] Figure 1 is the front view of the present utility model;

[0013] Figure 2 is Figure 1 the top view of

[0014] Figure 3 is Figure 1 the left view of

[0015] Figure 4 is Figure 3 the sectional view taken along A - A in

[0016] Figure 5 is Figure 4 the enlarged view of part B in

[0017] Figure 6 is the three - dimensional enlarged view of the pivot and the comb tooth rod after assembly;

[0018] Figure 7 is Figure 1 the three - dimensional view of

[0019] In the figure:

[0020] 1 - frame, 2 - hopper, 3 - casing, 4 - pivot, 5 - comb tooth rod, 6 - tension spring, 7 - bracket, 8 - bearing seat, 9 - arc - shaped baffle, 10 - support rod, 11 - pull ring one, 12 - pull ring two. Detailed Embodiments

[0021] The following further describes the detailed embodiments of the present utility model with reference to the drawings. It should be noted here that the description of these embodiments is for helping to understand the present utility model, but does not constitute a limitation to the present utility model. In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] As shown in the attached drawings, a seed cleaner includes a frame 1 and a casing 3 mounted on the frame 1 and having a hopper 2 at its upper part; one end of the casing 3 for discharging impurities is called the rear end, and the other end opposite thereto is called the front end; a separating mechanism is provided inside the casing 3 and below the discharge opening of the hopper 2; the separating mechanism includes a pivot 4 rotatably mounted on the casing 3 and at the front end of the discharge opening of the hopper 2, a plurality of comb-shaped rods 5 fixedly connected to the pivot 4 at intervals, and a tension spring 6; one end of the comb-shaped rod 5 is fixedly connected to the pivot 4, and the other end extends towards the rear end of the discharge of the hopper 2 and the height of this end is lower than that of the other end; one end of the tension spring 6 is fixedly connected to the inner wall of the casing 3, and the other end is fixedly connected to one of the comb-shaped rods 5.

[0023] As a specific technical solution of this embodiment, brackets 7 are provided on both sides of the casing 3, and both ends of the pivot 4 are rotatably mounted on the corresponding brackets 7 through bearing seats 8. The brackets 7 and the casing 3 can be fixedly connected by bolts or welded, etc.

[0024] As a further improved technical solution of this embodiment, an arc-shaped baffle 9 is provided at the tail end of the casing 3, the front end of the arc-shaped baffle 9 is fixedly connected to the casing 3, and both sides of the arc-shaped baffle 9 are fixedly connected to the frame 1 through struts 10. The tail end of the arc-shaped baffle 9 is downward, which can effectively reduce the flying distance of the discharged impurities, so as to facilitate the cleaning of the impurities on the ground.

[0025] As a further improved technical solution of this embodiment, a first pull ring 11 is fixedly connected inside the casing 3, and a second pull ring 12 is fixedly connected to one of the comb-shaped rods 5; both ends of the tension spring 6 are fixedly connected to the first pull ring 11 and the second pull ring 12 respectively. Hooks are provided at both ends of the tension spring 6 and are directly hung on the first pull ring 11 and the second pull ring 12, so as to facilitate the replacement of the tension spring 6.

[0026] As a preferred technical solution of this embodiment, the inclination angle of the comb-shaped rod 5 is 30° - 45°, so as to effectively ensure the separation of longer stems and leaves.

[0027] The utility model realizes the separation of longer stems and leaves from seeds by arranging the comb-shaped rod 5, which can block the longer stems and leaves, change the falling state of the longer stems and leaves. After the longer stems and leaves pass through the blocking of the comb-shaped rod 5, they have a larger contact surface with the separation air flow at the position of the comb-shaped rod 5, thereby improving the purity of the seeds after cleaning.

[0028] The above has described the embodiments of the utility model in detail with reference to the attached drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the utility model, various changes, modifications, substitutions and variations made to these embodiments still fall within the protection scope of the utility model.

Claims

1. A seed cleaning machine, comprising a frame (1), a casing (3) mounted on the frame (1) and having a silo (2) on the upper portion; one end of the casing (3) for discharging impurities is called a rear end, and the other end opposite thereto is called a front end; the characteristics are: A separation mechanism is provided inside the casing (3) and below the discharge port of the silo (2); the separation mechanism comprises a pivot (4) rotatably mounted on the casing (3) and located at the front end of the discharge port of the silo (2), a plurality of comb teeth rods (5) fixedly connected to the pivot (4) at intervals, and a tension spring (6); one end of the comb teeth rod (5) is fixedly connected to the pivot (4), and the other end extends to the rear end of the discharge port of the silo (2) and the height of the end is lower than the other end; one end of the tension spring (6) is fixedly connected to the inner wall of the casing (3), and the other end is fixedly connected to one of the comb teeth rods (5).

2. The seed cleaning machine according to claim 1, characterized in that: Brackets (7) are provided on both sides of the casing (3), and both ends of the pivot shaft (4) are rotatably mounted on the brackets (7) on the corresponding sides through bearing seats (8).

3. The seed cleaning machine according to claim 1 or 2, characterized in that: An arc-shaped baffle (9) is provided at the rear end of the casing (3), the front end of the arc-shaped baffle (9) is fixedly connected to the casing (3), and both sides of the arc-shaped baffle (9) are respectively fixedly connected to the frame (1) via support rods (10).

4. The seed cleaning machine according to claim 1 or 2, characterized in that: A pull ring 1 (11) is fixedly connected inside the housing (3), and a pull ring 2 (12) is fixedly connected to one of the comb tooth rods (5); the two ends of the tension spring (6) are respectively fixedly connected to the pull ring 1 (11) and the pull ring 2 (12).

5. The seed cleaning machine according to claim 3, characterized in that: A pull ring 1 (11) is fixedly connected inside the housing (3), and a pull ring 2 (12) is fixedly connected to one of the comb tooth rods (5); the two ends of the tension spring (6) are respectively fixedly connected to the pull ring 1 (11) and the pull ring 2 (12).

6. The seed cleaning machine according to claim 1 or 2, characterized in that: The inclination angle of the comb tooth rod (5) is 30°-45°.

7. The seed cleaning machine according to claim 3, characterized in that: The inclination angle of the comb tooth rod (5) is 30°-45°.

8. The seed cleaning machine according to claim 4, characterized in that: The inclination angle of the comb tooth rod (5) is 30°-45°.

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