Agricultural production threshing apparatus
By introducing a screening mechanism and a dynamic filter screen into the threshing equipment, the problems of slow separation speed and easy clogging of grains and straw in traditional threshing equipment are solved, realizing rapid separation and classified collection, and improving threshing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 南宁市邕宁区中和镇农业服务中心
- Filing Date
- 2025-07-14
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional threshing equipment uses fixed filters, which results in slow separation of grains and straw and easy clogging, affecting threshing efficiency.
Design an agricultural threshing device that, by setting a screening mechanism in the threshing mechanism, enables the filter screen to vibrate back and forth at a high frequency, and in combination with the mixing rod, spiral blade, protruding post and fan blade, achieves rapid separation and classified collection of grains and straw.
It improves the separation speed of grains and straw, avoids clogging, and enhances threshing efficiency and convenience.
Smart Images
Figure CN224290773U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of agricultural production technology, specifically relating to an agricultural threshing device. Background Technology
[0002] Threshing is a core part of the crop harvesting process, and its technical level directly affects grain yield and quality. Traditional threshing equipment operates with fixed parameters and relies on mechanical friction and impact principles to separate grains. It mainly adopts a drum-type threshing structure, which uses high-speed rotating threshing elements such as spikes, grooved rods and concave sieves to rub, beat and comb the crops. With the acceleration of agricultural modernization, large-scale planting and crop diversification have placed higher demands on threshing equipment.
[0003] However, current threshing equipment typically requires the use of a filter screen to separate the grains from the straw during operation. Most filters in traditional threshing equipment are fixed, which results in slow separation and a tendency for clogging, causing significant problems for agricultural threshing. Therefore, this applicant proposes an agricultural threshing device to address these issues. Utility Model Content
[0004] The purpose of this invention is to provide an agricultural threshing device that can simultaneously drive the screening mechanism to move back and forth during the threshing process of crops, causing the filter screen to vibrate back and forth at a high frequency. This allows for rapid separation of grains and straw while avoiding clogging, thus bringing greater convenience to agricultural threshing.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An agricultural threshing device, comprising:
[0007] A threshing mechanism and a screening mechanism assembled at the bottom of the threshing mechanism;
[0008] The threshing mechanism includes a lower shell, an upper shell hinged to the top of the lower shell, a stirring rod rotatably mounted inside the lower shell, a spiral blade, a protruding post, and a fan blade fixedly mounted on the periphery of the stirring rod, and a slice misaligned with the protruding post fixedly mounted on the inner wall of the lower shell.
[0009] The screening mechanism includes a movable frame slidably mounted on the bottom of the lower housing and a rotating rod rotatably mounted on one side of the lower housing. A filter screen is inserted inside the movable frame, and a turntable is fixedly mounted on the bottom of the rotating rod. A movable rod is hinged between the turntable and the movable frame.
[0010] Preferably, a feed hopper is fixedly installed at the front end of the upper housing, and the feed hopper corresponds to the spiral blade.
[0011] Preferably, a slag discharge hopper is fixedly installed at the rear end of the upper shell, and the slag discharge hopper corresponds to the fan blade.
[0012] Preferably, the front and rear ends of the lower housing are fixedly installed with support legs, and a discharge hopper corresponding to the filter screen is fixedly installed between the support legs.
[0013] Preferably, the lower housing and the movable frame are slidably mounted via a groove, and the stirring rod and the rotating rod are driven by a bevel gear set.
[0014] Preferably, a motor is fixedly installed on one side of the lower housing, and the output shaft of the motor is connected to the stirring rod via a belt drive.
[0015] Preferably, the movable frame has an installation slot inside for inserting the filter screen, and an operation port is provided on one side of the movable frame.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] (1) This utility model is equipped with a screening mechanism, which can drive the rotating rod to rotate during the stirring and threshing process of crops. The rotating rod drives the turntable to rotate, and the movable frame can be driven to move horizontally back and forth along the bottom of the lower shell through the movable rod. This allows the filter screen to vibrate back and forth at a high frequency, which can quickly separate the grains and straw, while avoiding clogging. Threshing and screening can be carried out simultaneously, which effectively improves the threshing effect and brings more convenience to agricultural production.
[0018] (2) The present invention has a spiral blade, a protruding post and a fan blade on the stirring rod. The interaction between them can guide the crops into the threshing mechanism. The spiral blade can be used to transport the crops to the protruding post. The rotation of the protruding post can easily break up the crops and separate the grains from the straw. The rotation of the fan blade can easily discharge the separated straw from the threshing mechanism. It can more easily classify and collect the grains and straw, and improve the use effect. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the rear view structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the threshing mechanism of this utility model;
[0022] Figure 4 This is a schematic diagram of the screening mechanism of this utility model;
[0023] Figure 5 This is a schematic diagram of the lower shell structure of this utility model;
[0024] Figure 6 This is a schematic diagram of the movable frame structure of this utility model;
[0025] In the diagram: 1. Threshing mechanism; 11. Upper shell; 12. Lower shell; 13. Feed hopper; 14. Slag hopper; 15. Discharge hopper; 16. Support leg; 17. Stirring rod; 18. Spiral blade; 19. Protruding pile; 110. Slice; 111. Fan blade; 112. Slide; 2. Screening mechanism; 21. Movable frame; 22. Movable rod; 23. Filter screen; 24. Rotating rod; 25. Turntable; 26. Bevel gear set; 27. Mounting slot; 28. Operating port; 3. Motor; 31. Belt. Detailed Implementation
[0026] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] Example 1:
[0030] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, an agricultural threshing device includes:
[0031] Threshing mechanism 1 and screening mechanism 2 assembled at the bottom of threshing mechanism 1;
[0032] The threshing mechanism 1 includes a lower housing 12, an upper housing 11 is hinged to the top of the lower housing 12, a stirring rod 17 is rotatably installed inside the lower housing 12, a spiral blade 18, a protruding post 19 and a fan blade 111 are fixedly installed on the periphery of the stirring rod 17, and a slice 110 that is misaligned with the protruding post 19 is fixedly installed on the inner wall of the lower housing 12.
[0033] The screening mechanism 2 includes a movable frame 21 slidably mounted on the bottom of the lower housing 12 and a rotating rod 24 rotatably mounted on one side of the lower housing 12. A filter screen 23 is inserted into the inside of the movable frame 21. A turntable 25 is fixedly mounted on the bottom of the rotating rod 24. A movable rod 22 is hinged between the turntable 25 and the movable frame 21.
[0034] As can be seen from the above, when in use, the crops to be threshed are introduced from the upper shell 11 into the lower shell 12. The stirring rod 17 is rotated, which can simultaneously drive the spiral blade 18, the protruding post 19 and the fan blade 111 to rotate. Through the rotation of the spiral blade 18, the crops can be continuously conveyed to the protruding post 19. When the protruding post 19 rotates, it can form a shearing effect with the slice 110, which can easily crush and disperse the crops, and separate the grains from the straw. The filter screen 23 can intercept the straw, allowing the grains to pass through the holes of the filter screen 23 for easy filtration. Through the rotation of the fan blade 111, the straw can be conveyed outward, which can easily discharge the straw and facilitate the classification and collection of straw and grains.
[0035] As the stirring rod 17 rotates, it drives the rotating rod 24 to rotate, which in turn drives the turntable 25 to rotate. One end of the movable rod 22 is eccentrically positioned with respect to the turntable 25, allowing the movable rod 22 to drive the movable frame 21 to move back and forth when the turntable 25 rotates. This causes the filter screen 23 to vibrate back and forth at a high frequency, which can quickly separate the grains from the straw while avoiding clogging. This allows threshing and screening to be carried out simultaneously, effectively improving the threshing effect and bringing more convenience to agricultural production.
[0036] Depend on Figure 1 and Figure 3It can be seen that a feed hopper 13 is fixedly installed at the front end of the upper shell 11, and the feed hopper 13 corresponds to the spiral blade 18.
[0037] As can be seen from the above, by stuffing the crops into the feed hopper 13, the crops can come into contact with the spiral blade 18. The spiral blade 18 can drive the crops to the protruding post 19, which facilitates the threshing operation.
[0038] For details, please refer to Figure 2 and Figure 3 As shown, a slag discharge hopper 14 is fixedly installed at the rear end of the upper shell 11, and the slag discharge hopper 14 corresponds to the fan blade 111.
[0039] As can be seen from the above, the rotation of the fan blade 111 can agitate the straw and transport it to the slag discharge hopper 14, which can conveniently discharge the straw to the outside and facilitate the collection of the straw.
[0040] For details, please refer to Figure 1 As shown, support legs 16 are fixedly installed at the front and rear ends of the lower housing 12, and a discharge hopper 15 corresponding to the filter screen 23 is fixedly installed between the support legs 16.
[0041] As can be seen from the above, the lower shell 12 can be easily supported by the support leg 16, the grains can be screened out by the filter screen 23, and the grains can be guided into the discharge hopper 15 for collection. The discharge hopper 15 can discharge the grains downwards, making it convenient to collect the grains through the container.
[0042] Example 2:
[0043] refer to Figure 4 and Figure 5 As shown, the lower housing 12 and the movable frame 21 are slidably installed together via a sliding groove 112, and the stirring rod 17 and the rotating rod 24 are connected by a bevel gear set 26.
[0044] As can be seen from the above, the sliding groove 112 allows the movable frame 21 to slide along the bottom of the lower housing 12, which facilitates the back-and-forth movement of the filter screen 23 to generate a vibration effect. The bevel gear set 26 can easily transmit the power of the stirring rod 17 when it rotates to the rotating rod 24, which facilitates the synchronous rotation of the rotating rod 24.
[0045] refer to Figure 2 and Figure 4 As shown, a motor 3 is fixedly installed on one side of the lower housing 12, and the output shaft of the motor 3 is connected to the stirring rod 17 via a belt 31.
[0046] As can be seen from the above, the motor 3 can provide power to the stirring rod 17, and the belt 31 can be used to drive the stirring rod 17 to rotate.
[0047] refer to Figure 6 As shown, the interior of the movable frame 21 has an installation slot 27 for inserting the filter screen 23, and the side of the movable frame 21 has an operation port 28.
[0048] As can be seen from the above, by inserting the filter screen 23 into the mounting slot 27, the filter screen 23 can be easily installed. The edge of the filter screen 23 can be easily grasped through the operating port 28, and the filter screen 23 can be easily pulled out from the mounting slot 27. It is convenient to replace the filter screen 23 with different aperture according to the usage requirements, which brings more convenience to the user.
[0049] 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. An agricultural threshing device, characterized in that, include: A threshing mechanism (1) and a screening mechanism (2) assembled at the bottom of the threshing mechanism (1); The threshing mechanism (1) includes a lower shell (12), an upper shell (11) is hinged to the top of the lower shell (12), a stirring rod (17) is rotatably installed inside the lower shell (12), a spiral blade (18), a protruding post (19) and a fan blade (111) are fixedly installed on the periphery of the stirring rod (17), and a slice (110) that is misaligned with the protruding post (19) is fixedly installed on the inner wall of the lower shell (12); The screening mechanism (2) includes a movable frame (21) slidably mounted on the bottom of the lower housing (12) and a rotating rod (24) rotatably mounted on one side of the lower housing (12). A filter screen (23) is inserted inside the movable frame (21). A turntable (25) is fixedly mounted on the bottom of the rotating rod (24). A movable rod (22) is hinged between the turntable (25) and the movable frame (21).
2. The agricultural threshing equipment according to claim 1, characterized in that: The front end of the upper housing (11) is fixedly installed with a feed hopper (13), and the feed hopper (13) corresponds to the spiral blade (18).
3. The agricultural threshing equipment according to claim 1, characterized in that: The rear end of the upper shell (11) is fixedly installed with a slag discharge hopper (14), which corresponds to the fan blade (111).
4. The agricultural threshing equipment according to claim 1, characterized in that: The front and rear ends of the lower housing (12) are fixedly installed with support legs (16), and a discharge hopper (15) corresponding to the filter screen (23) is fixedly installed between the support legs (16).
5. The agricultural threshing equipment according to claim 1, characterized in that: The lower housing (12) and the movable frame (21) are slidably installed together via a slide groove (112), and the stirring rod (17) and the rotating rod (24) are driven together via a bevel gear set (26).
6. The agricultural threshing equipment according to claim 1, characterized in that: A motor (3) is fixedly installed on one side of the lower housing (12), and the output shaft of the motor (3) is connected to the stirring rod (17) by a belt (31).
7. The agricultural threshing equipment according to claim 1, characterized in that: The movable frame (21) has an installation slot (27) inside for inserting the filter screen (23), and an operation port (28) is provided on one side of the movable frame (21).