Automatic rice threshing device
The circular motion of the gear rod and the rotary rod is carried out through the rotation shaft, combining the design of filter screen filtration and screen plate up and down reciprocating motion, which solves the problem of difficult separation between rice rods and rice, and achieves efficient rice threshing and impurity removal.
Patent Information
- Application Number
- CN202422506461.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-16
AI Technical Summary
During the threshing process of existing rice automatic threshing devices, rice poles are easily collected with rice, resulting in poor threshing effect. Especially rice poles that adhere to water or mud are difficult to be screened out by wind, affecting the threshing quality.
An automatic rice threshing device is designed, using a rotating shaft to drive the gear rod and the rotating rod for circular motion, combined with a filter to filter the rice rod, and the pulley drives the turntable through the motor drive, the connecting rod and the screen plate are reciprocated up and down, adjusting the screening force to improve the screening effect.
It effectively reduces the residue of impurities in the rice after threshing, improves the efficiency and quality of threshing, and adapts to the screening needs of different rice water content.
Smart Images
Figure CN223182684U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rice threshing, in particular to an automatic rice threshing device. Background Art
[0002] The automatic rice threshing device is a mechanical device specially designed to effectively separate the rice grains from the rice stalks in the rice ears. Its working principle is mainly based on mechanical vibration and friction. In the threshing device, the high-speed rotation of the drum drives the threshing elements to strike and rub the rice stalks, separating the rice grains from the rice ears. At the same time, the separation mechanism in the device separates the rice stalks and other impurities through screening and wind power, and collects the screened rice. This device plays an important role in modern agriculture. It greatly improves the efficiency and quality of rice harvesting through mechanization and intelligence, and reduces the labor intensity of farmers. It is of great significance to promote agricultural modernization.
[0003] In actual use of the automatic rice threshing device, since rice is planted in water, some water or mud may adhere to the rice stalks during harvesting. After the rice enters the threshing device as a whole, some rice stalks are usually broken and enter the separation mechanism together with the rice. Since the rice stalks adhered with water or mud are heavy, they may not be screened out by wind and will eventually be collected together with the rice. As a result, more rice stalks and impurities may remain in the threshed rice, affecting the effect and quality of rice threshing. For this reason, we propose an automatic rice threshing device. Utility Model Content
[0004] The purpose of the utility model is to provide an automatic rice threshing device to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic rice threshing device, comprising a threshing bin, an upper cover plate rotatably mounted on the threshing bin, and a feed port and a slag discharge port are respectively provided on both sides of the threshing bin, a motor is fixedly mounted on one end of the threshing bin, a rotating shaft is fixedly mounted on the output end of the motor, the rotating shaft is located in the threshing bin, and a plurality of baffles are fixedly mounted on the shaft, a plurality of slag discharge plates are fixedly mounted on the end of the rotating shaft, a plurality of rotating rods are fixedly mounted on the rotating shaft, the rotating rods are arranged in a circle with the rotating shaft as the center, a plurality of arc rods are fixedly mounted on each of the rotating rods, a filter screen for filtering rice straw is fixedly mounted in the threshing bin, and a discharge port is provided at the bottom of the threshing bin;
[0006] Two baffles are fixedly installed at the lower end of the threshing bin, and a sieve plate for screening rice is slidably installed between the two baffles. The sieve plate is located below the discharge port, and a pulley is fixedly installed at the output end of the motor. A turntable is rotatably installed on the threshing bin, and a belt is installed for transmission between the turntable and the pulley. A fixing rod is fixedly installed at one end of the sieve plate, and a connecting rod is rotatably installed at one end of the fixing rod. One end of the connecting rod is eccentrically arranged on the turntable, and a collecting frame for collecting rice is provided below the sieve plate.
[0007] Preferably, an adjusting member is rotatably mounted on one end of the connecting rod, an adjusting slot is provided on the turntable, and the adjusting member is slidably mounted in the adjusting slot.
[0008] Preferably, a plug plate is slidably installed in the adjusting member, a second spring is fixedly connected between the plug plate and the inner wall of the adjusting member, a sliding column is fixedly installed at one end of the plug plate, and a plurality of sockets for limiting the sliding column are provided on the inner wall of the adjusting groove.
[0009] Preferably, each of the baffles is provided with a plurality of slide grooves, and a plurality of slide plates are fixedly installed on both sides of the screen plate. The slide plates correspond to the slide grooves one by one and are slidably installed in the slide grooves. A plurality of first springs are fixedly connected between each of the slide plates and the inner wall of the corresponding slide groove.
[0010] Preferably, the sieve plate is arranged obliquely below the threshing bin.
[0011] Preferably, the arc-shaped rods on each of the rotating rods are arranged in a spiral.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] The utility model utilizes a motor to drive the rotating shaft to rotate, and causes the rotating rod to perform a circular motion with the rotating shaft as the center of the circle. The blocking rod on the rotating shaft and the arc rod on the rotating rod can effectively thresh the rice. At the same time, the motor drives the pulley to rotate, and the turntable will be driven to rotate through the transmission of the belt. The adjusting part will drive one end of the connecting rod to perform a circular motion, and the other end of the connecting rod will drive the fixed rod and the screen plate to perform an up and down reciprocating motion to screen the rice and the impurities therein. By pulling the plug plate to drive the sliding column to be inserted into different plug holes, the radius of the circular motion of the adjusting part can be changed, and the vibration amplitude of the screen plate is also adjusted accordingly, thereby improving the screening effect of the screen plate and effectively reducing the impurities remaining in the rice after threshing. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the internal structure of the threshing bin of the utility model;
[0016] Figure 3 This is a schematic diagram of the filter and screen structure of the utility model;
[0017] Figure 4 This is a schematic diagram of the turntable structure of the utility model;
[0018] Figure 5 This is a schematic diagram of the internal structure of the adjusting member of the utility model.
[0019] In the figure: 1-threshing bin; 2-upper cover; 3-collecting frame; 4-feeding port; 5-slag outlet; 6-motor; 7-rotating shaft; 8-blocking rod; 9-rotating rod; 10-arc-shaped rod; 11-slag plate; 12-filter screen; 13-discharging port; 14-baffle; 15-chute; 16-sieve plate; 17-slide plate; 18-first spring; 19-pulley; 20-belt; 21-turntable; 22-fixing rod; 23-connecting rod; 24-adjusting member; 25-insertion plate; 26-second spring; 27-sliding column; 28-adjusting slot; 29-socket. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0021] See also Figure 1-5The utility model provides a technical solution: an automatic rice threshing device, comprising a threshing bin 1, an upper cover plate 2 is rotatably mounted on the threshing bin 1, and a feed port 4 and a slag outlet 5 are respectively provided on both sides thereof, a motor 6 is fixedly mounted on one end of the threshing bin 1, a rotating shaft 7 is fixedly mounted on the output end of the motor 6, the rotating shaft 7 is located in the threshing bin 1, and a plurality of baffles 8 are fixedly mounted on it, a plurality of slag plates 11 are fixedly mounted on the end of the rotating shaft 7, and a plurality of There are two rotating rods 9, which are arranged in a circle with the rotating shaft 7 as the center. Each rotating rod 9 is fixed with a number of arc rods 10. The arc rods 10 on each rotating rod 9 are arranged in a spiral arrangement to facilitate pushing the rice at the feed port 4 to the slag outlet 5. A filter screen 12 for filtering rice straw is fixedly installed in the threshing bin 1. A discharge port 13 is provided at the bottom of the threshing bin 1. After starting the motor 6, the rice is put into the threshing bin 1 from the feed port 4, and the motor 6 will drive the rotating shaft 7 The rice grains on the rice stalks are threshed by the rotating shaft 7. The rice grains on the rice stalks are threshed by the rotating shaft 7. The rice grains on the rice stalks are threshed by the rotating shaft 7. The rice grains on the rice stalks are threshed by the rotating shaft 7. The rice grains on the rice stalks are threshed by the rotating shaft 7. The rice grains on the rice stalks are threshed by the rotating shaft 7.
[0022] Two baffles 14 are fixedly installed at the lower end of the threshing bin 1, and a sieve plate 16 for screening rice is slidably installed between the two baffles 14. The sieve plate 16 is located below the discharge port 13. The sieve plate 16 is tilted below the threshing bin 1 to facilitate the discharge of impurities in the rice. A number of chutes 15 are provided on each baffle 14, and a number of slides 17 are fixedly installed on both sides of the sieve plate 16. The slides 17 correspond to the chutes 15 one by one and are slidably installed in the chutes 15. A number of first springs 18 are fixedly connected between each slide 17 and the inner wall of the corresponding chutes 15, so that the sieve plate 16 is buffered during the vibration screening process, thereby improving the efficiency of screening rice. A pulley 19 is fixedly installed at the output end of the motor 6, and a turntable 21 is rotatably installed on the threshing bin 1. A belt 20 is installed between the disk 21 and the pulley 19 for transmission. A fixed rod 22 is fixedly installed at one end of the sieve plate 16. A connecting rod 23 is rotatably installed at one end of the fixed rod 22. One end of the connecting rod 23 is eccentrically arranged on the turntable 21. An adjusting member 24 is rotatably installed at one end of the connecting rod 23. An adjusting slot 28 is provided on the turntable 21. The adjusting member 24 is slidably installed in the adjusting slot 28. A plug-in plate 25 is slidably installed in the adjusting member 24. A second spring 26 is fixedly connected between the plug-in plate 25 and the inner wall of the adjusting member 24. A sliding column 27 is fixedly installed at one end of the plug-in plate 25. A plurality of sockets 29 for limiting the sliding column 27 are provided on the inner wall of the adjusting slot 28. A collecting frame 3 for collecting rice is provided below the sieve plate 16. When the motor 6 is working, it will drive the pulley 19 into The rotating disc 21 is driven to rotate by the transmission of the belt 20. The sliding column 27 is limited by the jack 29, and the insert plate 25 and the adjusting member 24 drive one end of the connecting rod 23 to perform a circular motion. Since one end of the connecting rod 23 is rotatably connected to the fixed rod 22, and the fixed rod 22 is fixedly mounted on the sieve plate 16, the sieve plate 16 is limited by the baffles 14 on both sides and can only move up and down. When one end of the connecting rod 23 performs a circular motion, the other end will drive the fixed rod 22 and the sieve plate 16 to perform an up and down reciprocating motion. The rice that falls onto the sieve plate 16 through the discharge port 13 and the impurities therein are screened by the sieve plate 16, and the rice will fall into the collecting frame 3 below, while the larger impurities will stay on the sieve plate 16. Since the sieve plate 16 is inclined, As the sieve plate 16 continues to vibrate, the impurities will move downward along the inclined surface of the sieve plate 16 and eventually be discharged. When the humidity or weight of the impurities is large, the plug plate 25 is pulled to release the limit of the slide post 27 by the socket 29, and the adjusting member 24 is slid in the adjusting groove 28. After the adjusting member 24 slides to a suitable position, the plug plate 25 is released. The plug plate 25 and the slide post 27 are reset by the elastic force of the second spring 26, and the slide post 27 is reinserted into the corresponding socket 29, so that the radius of the circular motion of the adjusting member 24 changes, and the amplitude of the up and down reciprocating motion of the sieve plate 16 is also adjusted accordingly. The screening force of the sieve plate 16 can be flexibly adjusted according to the suitability and moisture content of the rice, thereby improving the screening effect of the sieve plate 16 and effectively reducing the impurities remaining in the rice after threshing.
[0023] Specifically, after starting the motor 6, the rice is put into the threshing bin 1 through the feed port 4, the motor 6 will drive the rotating shaft 7 to rotate, and drive the rotating rod 9 to perform a circular motion with the rotating shaft 7 as the center of the circle, and the blocking rod 8 on the rotating shaft 7 and the arc rod 10 on the rotating rod 9 collide with the rice, so as to facilitate threshing the rice on the rice stalk. The threshed rice, the broken rice stalk and the impurities are filtered through the filter 12 and finally discharged downward from the discharge port 13. Since the arc rod 10 on the rotating rod 9 is arranged in a spiral, the rotating rod 9 drives the arc rod 10 to perform a circular motion, and the threshed rice stalk will be The arc rod 10 pushes and moves toward the slag outlet 5, and the rotating shaft 7 will also drive the slag plate 11 thereon to move. When the threshed rice straw moves to the slag plate 11 area, the slag plate 11 will push the rice straw to be discharged from the slag outlet 5 to complete the threshing work. When the motor 6 is working, it will drive the pulley 19 to rotate, and through the transmission of the belt 20, it will drive the turntable 21 to rotate. Through the limit of the sliding column 27 by the socket 29, the plug plate 25 and the adjusting member 24 will drive one end of the connecting rod 23 to perform a circular motion. Since one end of the connecting rod 23 is rotatably connected to the fixed rod 22, and the fixed rod 22 is fixedly installed on On the sieve plate 16, the sieve plate 16 is limited by the baffles 14 on both sides and can only move up and down. When one end of the connecting rod 23 performs a circular motion, the other end will drive the fixed rod 22 and the sieve plate 16 to perform an up and down reciprocating motion. The rice and the impurities therein that fall onto the sieve plate 16 through the discharge port 13 are screened by the sieve plate 16 and then fall into the collecting frame 3 below, while the larger impurities remain on the sieve plate 16. Since the sieve plate 16 is inclined, as the sieve plate 16 continues to vibrate, the impurities will move downward along the inclined surface of the sieve plate 16 and eventually be discharged. When the humidity or weight of the impurities is large, the pull After the movable plug plate 25 releases the limit of the sliding post 27 by the socket 29, the adjusting member 24 is slid in the adjusting groove 28. After the adjusting member 24 slides to the appropriate position, the plug plate 25 is released. The plug plate 25 and the sliding post 27 are reset by the elastic force of the second spring 26. The sliding post 27 is reinserted into the corresponding socket 29, so that the radius of the circular motion of the adjusting member 24 is changed, and the amplitude of the up and down reciprocating motion of the sieve plate 16 is also adjusted accordingly. The screening force of the sieve plate 16 can be flexibly adjusted according to the suitability and moisture content of the rice, thereby improving the screening effect of the sieve plate 16 and effectively reducing the impurities remaining in the rice after threshing.
[0024] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0025] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An automatic rice threshing device, comprising a threshing chamber (1), characterized in that: An upper cover plate (2) is rotatably mounted on the threshing bin (1), and a feed port (4) and a slag discharge port (5) are respectively provided on both sides thereof; a motor (6) is fixedly mounted on one end of the threshing bin (1); a rotating shaft (7) is fixedly mounted on the output end of the motor (6); the rotating shaft (7) is located in the threshing bin (1), and a plurality of blocking rods (8) are fixedly mounted on the rotating shaft; a plurality of slag discharge plates (11) are fixedly mounted on the end of the rotating shaft (7); a plurality of rotating rods (9) are fixedly mounted on the rotating shaft (7); the rotating rods (9) are arranged in a circle with the rotating shaft (7) as the center; a plurality of arc-shaped rods (10) are fixedly mounted on each of the rotating rods (9); a filter screen (12) for filtering rice straw is fixedly mounted in the threshing bin (1); and a discharge port (13) is provided at the bottom of the threshing bin (1); Two baffles (14) are fixedly installed at the lower end of the threshing bin (1), a sieve plate (16) for screening rice is slidably installed between the two baffles (14), the sieve plate (16) is located below the discharge port (13), a pulley (19) is fixedly installed at the output end of the motor (6), a turntable (21) is rotatably installed on the threshing bin (1), a belt (20) is installed between the turntable (21) and the pulley (19), one end of the sieve plate (16) is fixedly installed with a fixed rod (22), one end of the fixed rod (22) is rotatably installed with a connecting rod (23), one end of the connecting rod (23) is eccentrically arranged on the turntable (21), and a collecting frame (3) for collecting rice is arranged below the sieve plate (16).
2. The automatic rice threshing device according to claim 1, characterized in that: An adjusting member (24) is rotatably mounted on one end of the connecting rod (23), an adjusting slot (28) is provided on the rotating disk (21), and the adjusting member (24) is slidably mounted in the adjusting slot (28).
3. The automatic rice threshing device according to claim 2, characterized in that: A plug plate (25) is slidably mounted in the adjusting member (24), a second spring (26) is fixedly connected between the plug plate (25) and the inner wall of the adjusting member (24), a sliding column (27) is fixedly mounted on one end of the plug plate (25), and a plurality of sockets (29) for limiting the sliding column (27) are provided on the inner wall of the adjusting groove (28).
4. The automatic rice threshing device according to claim 1, characterized in that: Each of the baffles (14) is provided with a plurality of slides (15), and a plurality of slides (17) are fixedly installed on both sides of the screen plate (16). The slides (17) correspond to the slides (15) one by one and are slidably installed in the slides (15). A plurality of first springs (18) are fixedly connected between each of the slides (17) and the inner wall of the corresponding slide (15).
5. The automatic rice threshing device according to claim 4, characterized in that: The sieve plate (16) is arranged obliquely below the threshing bin (1).
6. The automatic rice threshing device according to claim 1, characterized in that: The arc-shaped rods (10) on each rotating rod (9) are arranged in a spiral.