Straw uniform distribution pretreatment device at threshing chamber inlet of a small cell harvester

Abstract

A straw distribution pretreatment device for the inlet of a threshing bin in a small-scale harvester includes a threshing bin, a vibrating screen assembly, a conveyor belt assembly, and a uniform feeding assembly. The vibrating screen assembly is located on the side of the inlet end of the threshing bin, the conveyor belt assembly is located at the vibrating end of the vibrating screen assembly, and the outlet end of the conveyor belt assembly is connected to the inlet of the threshing bin. The uniform feeding assembly is located on the threshing bin with its feeding end positioned above the conveyor belt assembly to agitate the straw conveyed on the conveyor belt assembly. By using the vibrating screen assembly to vibrate and disperse the straw piled on the conveyor belt assembly, and in conjunction with the uniform feeding assembly, any remaining straw not dispersed by vibration can be removed. Furthermore, the circulating guide chute assembly ensures that when the pusher plate pushes the straw to both sides of the conveyor belt assembly, it can also push away the straw from the other side, preventing straw accumulation on both sides of the conveyor belt assembly and improving threshing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of straw treatment technology, specifically a straw uniform distribution pretreatment device at the inlet of the threshing bin of a small-scale harvester. Background Technology

[0002] Application number CN2024222476796 discloses a threshing device for soybean breeding, comprising: a frame, with a movable component installed at the bottom of the frame; a threshing mechanism, including a threshing shell fixedly connected to the top of the frame, a threshing component installed inside the threshing shell, a screening component installed at the bottom of the threshing shell, a feed inlet at the front end of the threshing shell with a feed guide plate installed on the feed inlet, a slag discharge port at the rear end of the threshing shell with a slag discharge guide plate installed on the slag discharge port; a conveying component installed on the feed guide plate; a transmission component installed on the frame; and a reflux mechanism, with a reflux port on the slag discharge guide plate, the reflux mechanism installed on the reflux port, and the output end of the reflux mechanism located above the screening component; wherein, a discharge port is provided at the bottom of the threshing shell.

[0003] While the aforementioned existing technology can thresh soybeans, when soybeans are fed into the threshing chamber, the soybean stalks may pile up in the middle, resulting in an uneven distribution of the stalks in the width direction of the inlet, which is "thicker in the middle and thinner at both sides," thus affecting the subsequent threshing operation. Utility Model Content

[0004] The purpose of this invention is to provide a straw distribution pretreatment device at the inlet of the threshing bin of a small-scale harvester, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A straw uniform distribution pretreatment device at the inlet of the threshing bin of a small-scale harvester includes a threshing bin, a vibrating screen assembly, a conveyor belt assembly, and a uniform feeding assembly, wherein: The vibrating screen assembly is located on the side of the feed end of the threshing chamber, the conveyor belt assembly is located on the vibrating end of the vibrating screen assembly, the discharge end of the conveyor belt assembly is connected to the feed inlet of the threshing chamber, and the uniform feeding assembly is located on the threshing chamber with its feeding end positioned above the conveyor belt assembly for feeding the straw conveyed on the conveyor belt assembly.

[0006] Preferably, the vibrating screen assembly includes a mounting bracket, a vibrating mounting frame, a spring, and a vibrating motor. The mounting bracket is located on the side of the feed end of the threshing chamber. The vibrating mounting frame is movably mounted on the mounting bracket by the spring. The vibrating motor is mounted on the vibrating mounting frame and is powered by it.

[0007] Preferably, the uniform feeding assembly includes a cover plate, a reciprocating linear drive assembly, a mounting sleeve, a movable sleeve, a pusher plate, a circulating guide trough assembly, and a limiting rod. The cover plate is disposed on the threshing chamber and located above the conveyor belt assembly. The reciprocating linear drive assembly is disposed on the cover plate. The mounting sleeve is disposed on the moving end of the reciprocating linear drive assembly. One end of the movable sleeve is movably installed inside the mounting sleeve, and the other end is movably installed with the pusher plate. The circulating guide trough assembly is disposed on the cover plate and located on the side of the reciprocating linear drive assembly. The movable sleeve is provided with a limiting rod, which cooperates with the circulating guide trough assembly.

[0008] Preferably, the circulating guide groove assembly includes a guide groove plate, an annular guide groove, a linear guide groove, and a one-way limiting guide plate. The guide groove plate is disposed on the cover plate and located on the side of the reciprocating linear drive assembly. Two annular guide grooves are formed at both ends of the guide groove plate and are connected to each other by a linear guide groove. The one-way limiting guide plate is hinged to the guide groove plate by a torsion spring and is located at the connection between the annular guide groove and the linear guide groove.

[0009] Preferably, the limiting rod is fitted inside the linear guide groove.

[0010] Preferably, the conveyor belt assembly is mounted on a vibrating mounting frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The straw uniform distribution pretreatment device at the inlet of the threshing bin of the small-area harvester disclosed in this utility model, when working, uses a vibrating screen assembly to vibrate and disperse the straw piled on the conveyor belt assembly. In addition, the uniform feeding assembly can disperse the piled straw that has not been dispersed by vibration. Furthermore, the circulating guide trough assembly can ensure that when the pusher plate pushes the straw to both sides of the conveyor belt assembly, it can also push the straw from the other side, thus avoiding the accumulation of straw on both sides of the conveyor belt assembly and improving the threshing efficiency. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the present invention; Figure 3 for Figure 1 Schematic diagram of section A in the middle; Figure 4 for Figure 2 Schematic diagram of section B; Figure 5 for Figure 2Schematic diagram of section C. In the diagram: 1. Threshing chamber; 2. Vibrating screen assembly; 3. Conveyor belt assembly; 4. Uniform feeding assembly; 21. Mounting bracket; 22. Vibrating mounting frame; 23. Spring; 24. Vibrating motor; 40. Cover plate; 41. Reciprocating linear drive assembly; 42. Mounting sleeve; 43. Movable sleeve; 44. Push plate; 45. Circulating guide trough assembly; 46. Limiting rod; 451. Guide trough plate; 452. Annular guide trough; 453. Linear guide trough; 454. One-way limiting guide plate. Detailed Implementation

[0013] 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.

[0014] Example: Please see Figures 1 to 5 This utility model provides a technical solution: A straw distribution pretreatment device at the inlet of the threshing bin of a small-scale harvester includes a threshing bin 1, a vibrating screen assembly 2, a conveyor belt assembly 3, and a uniform feeding assembly 4, wherein: The vibrating screen assembly 2 is located on the side of the feed end of the threshing chamber 1. The conveyor belt assembly 3 is located on the vibrating end of the vibrating screen assembly 2. The discharge end of the conveyor belt assembly 3 is connected to the feed inlet of the threshing chamber 1. The uniform feeding assembly 4 is located on the threshing chamber 1 and the feeding end is located above the conveyor belt assembly 3 for feeding the straw conveyed on the conveyor belt assembly 3.

[0015] As a preferred embodiment, the threshing chamber 1 is a conventional technical means for those skilled in the art, and its principle and solution will not be described in detail here.

[0016] As a preferred embodiment, the conveyor belt assembly 3 is a conventional technical means for those skilled in the art, and its principle and solution will not be described in detail here.

[0017] In a preferred embodiment, the vibrating screen assembly 2 includes a mounting bracket 21, a vibrating mounting frame 22, a spring 23, and a vibrating motor 24. The mounting bracket 21 is located on the side of the feed end of the threshing chamber 1. The vibrating mounting frame 22 is movably mounted on the mounting bracket 21 via the spring 23. The vibrating motor 24 is mounted on the vibrating mounting frame 22 and is powered by it. The vibrating motor 24 drives the vibrating mounting frame 22 to vibrate on the mounting bracket 21, which in turn drives the conveyor belt assembly 3 to vibrate synchronously. This disperses the conveyed straw, preventing straw stacking and improving the threshing efficiency of the threshing chamber 1.

[0018] As a preferred embodiment, the vibration motor 24 is a conventional technical means for those skilled in the art, and its principle and solution will not be described in detail here.

[0019] In a preferred embodiment, the uniform feeding assembly 4 includes a cover plate 40, a reciprocating linear drive assembly 41, a mounting sleeve 42, a movable sleeve 43, a pusher plate 44, a circulating guide trough assembly 45, and a limiting rod 46. The cover plate 40 is disposed on the threshing chamber 1 and located above the conveyor belt assembly 3. The reciprocating linear drive assembly 41 is disposed on the cover plate 40. The mounting sleeve 42 is disposed on the moving end of the reciprocating linear drive assembly 41. One end of the movable sleeve 43 is movably mounted inside the mounting sleeve 42, and the other end is movably mounted with the pusher plate 44. The circulating guide trough assembly 45 is disposed on the cover plate 40 and located on the side of the reciprocating linear drive assembly 41. The movable sleeve 43 is provided with a limiting rod 46, which cooperates with the circulating guide trough assembly 45. The reciprocating linear drive assembly 41 drives the pusher plate 44 to reciprocate in the vertical direction of the conveyor belt, thereby flattening the stacked straw that has not been dispersed by vibration and preventing straw stacking.

[0020] As a preferred embodiment, the reciprocating linear drive assembly 41 preferably adopts a combination of a guide rail and an electric slider, in which the electric slider is the actuating end of the reciprocating linear drive assembly 41. The reciprocating linear drive assembly 41 is a conventional linear drive scheme, and its principle and detailed technical solution will not be described in detail here.

[0021] In a preferred embodiment, the circulating guide groove assembly 45 includes a guide groove plate 451, an annular guide groove 452, a linear guide groove 453, and a one-way limiting guide plate 454. The guide groove plate 451 is disposed on the cover plate 40 and located on the side of the reciprocating linear drive assembly 41. Two annular guide grooves 452 are formed at both ends of the guide groove plate 451, and the two annular guide grooves 452 are connected by the linear guide groove 453. Figure 5As shown, the one-way limiting guide plate 454 is hinged to the guide groove plate 451 by a torsion spring and is located at the junction of the annular guide groove 452 and the linear guide groove 453. The length of the one-way limiting guide plate 454 is longer than the width of the linear guide groove 453. When the one-way limiting guide plate 454 is in its normal state, it contacts the lower surface of the linear guide groove 453, with the contact surface located below the junction of the annular guide groove 452 and the linear guide groove 453. When the one-way limiting guide plate 454 is pushed upwards to its highest position, the minimum distance between the one-way limiting guide plate 454 and the linear guide groove 453 is greater than that between the annular guide groove 452 and the linear guide groove 453. The width of 53 needs to be large so that when the limiting rod 46 moves from the linear guide groove 453 to the annular guide groove 452, it will move from the one-way limiting guide plate 454 to the upper end of the annular guide groove 452; and when the limiting rod 46 moves from the annular guide groove 452 to the linear guide groove 453, it will push the one-way limiting guide plate 454 away and move to the linear guide groove 453. After the limiting rod 46 separates from the one-way limiting guide plate 454, the one-way limiting guide plate 454 will reset under the action of the torsion spring. This ensures that when the pusher plate 44 pushes the straw to both sides of the conveyor belt assembly 3, it can also push the straw away from the other side, avoiding the accumulation of straw on both sides of the conveyor belt assembly 3.

[0022] In a preferred embodiment, the limiting rod 46 is fitted within the linear guide groove 453. The limiting rod 46 can move between the annular guide groove 452 and the linear guide groove 453.

[0023] In a preferred embodiment, the conveyor belt assembly 3 is mounted on the vibrating mounting bracket 22.

[0024] The working principle of this utility model: In use, the straw to be threshed is placed on the conveyor belt assembly 3. When the stacked straw is on the conveyor belt assembly 3, the vibration motor 24 drives the vibration mounting frame 22 to vibrate on the mounting bracket 21. This causes the conveyor belt assembly 3 to vibrate synchronously, thus breaking up the conveyed straw. The stacked straw that is not broken up is then pushed back and forth by the reciprocating linear drive assembly 41, which drives the pusher plate 44 to move back and forth in the vertical direction of the conveyor belt. This process breaks up the remaining straw that has not been broken up. The stacked straw is flattened by the pusher plate 44. When the limiting rod 46 moves from the linear guide 453 to the annular guide 452, it moves from the one-way limiting guide plate 454 to the upper end of the annular guide 452. When the limiting rod 46 moves from the annular guide 452 to the linear guide 453, it pushes the one-way limiting guide plate 454 away and moves to the linear guide 453. After the limiting rod 46 separates from the one-way limiting guide plate 454, the one-way limiting guide plate 454 will reset under the action of the torsion spring. This ensures that when the pusher plate 44 pushes the straw to both sides of the conveyor belt assembly 3, it can also push the straw away from the other side, preventing the straw from accumulating on both sides of the conveyor belt assembly 3. After being evenly dispersed, the straw is then conveyed into the threshing chamber 1 by the conveyor belt assembly 3 for threshing. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A straw distribution pretreatment device at the inlet of the threshing bin of a small-scale harvester, comprising a threshing bin (1), a vibrating screen assembly (2), a conveyor belt assembly (3), and a uniform feeding assembly (4), characterized in that: The vibrating screen assembly (2) is located on the side of the feed end of the threshing chamber (1), the conveyor belt assembly (3) is located on the vibrating end of the vibrating screen assembly (2), the discharge end of the conveyor belt assembly (3) is connected to the feed inlet of the threshing chamber (1), and the uniform feeding assembly (4) is located on the threshing chamber (1) with its feeding end located above the conveyor belt assembly (3) for feeding the straw conveyed on the conveyor belt assembly (3).

2. The straw distribution pretreatment device at the inlet of the threshing bin of a small-area harvester according to claim 1, characterized in that: The vibrating screen assembly (2) includes a mounting bracket (21), a vibrating mounting frame (22), a spring (23), and a vibrating motor (24). The mounting bracket (21) is located on the side of the feed end of the threshing chamber (1). The vibrating mounting frame (22) is movably mounted on the mounting bracket (21) by the spring (23). The vibrating motor (24) is mounted on the vibrating mounting frame (22) and is powered by it.

3. The straw distribution pretreatment device at the inlet of the threshing bin of a small-area harvester according to claim 2, characterized in that: The uniform feeding assembly (4) includes a cover plate (40), a reciprocating linear drive assembly (41), a mounting sleeve (42), a movable sleeve (43), a pusher plate (44), a circulating guide trough assembly (45), and a limiting rod (46). The cover plate (40) is located on the threshing chamber (1) and above the conveyor belt assembly (3). The reciprocating linear drive assembly (41) is located on the cover plate (40). The mounting sleeve (42) is located at the moving end of the reciprocating linear drive assembly (41). One end of the movable sleeve (43) is movably installed inside the mounting sleeve (42), and the other end is movably installed with the pusher plate (44). The circulating guide trough assembly (45) is located on the cover plate (40) and on the side of the reciprocating linear drive assembly (41). The movable sleeve (43) is provided with a limiting rod (46) and cooperates with the circulating guide trough assembly (45) through the limiting rod (46).

4. The straw distribution pretreatment device at the inlet of the threshing bin of a small-area harvester according to claim 3, characterized in that: The circulating guide groove assembly (45) includes a guide groove plate (451), an annular guide groove (452), a linear guide groove (453), and a one-way limiting guide plate (454). The guide groove plate (451) is disposed on the cover plate (40) and located on the side of the reciprocating linear drive assembly (41). Two annular guide grooves (452) are opened at both ends of the guide groove plate (451) and are connected to each other by the linear guide groove (453). The one-way limiting guide plate (454) is hinged to the guide groove plate (451) by a torsion spring and is located at the connection between the annular guide groove (452) and the linear guide groove (453).

5. The straw distribution pretreatment device at the inlet of the threshing bin of a small-area harvester according to claim 3, characterized in that: The limiting rod (46) is fitted into the linear guide groove (453).

6. The straw distribution pretreatment device at the inlet of the threshing bin of a small-area harvester according to claim 3, characterized in that: The conveyor belt assembly (3) is mounted on the vibration mounting frame (22).

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