Rice thresher
By introducing a hitting mechanism and screening mechanism into the rice threshing machine, the problems of poor threshing effect and impurity doping are solved, and more efficient rice treatment and cleaning are achieved, and work efficiency is improved.
Patent Information
- Application Number
- CN202420668230.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-04-02
AI Technical Summary
The existing rice threshing machine has poor threshing effect, and the rice stalks are difficult to clean up when flying out, and impurities are often doped after threshing, which requires secondary screening and low working efficiency.
A rice threshing machine including a hitting mechanism and a screening mechanism was designed. The rollers were driven to hit the rice by a threshing motor, and the rice rods were separated by a screening plate and a discharge port. The adhesion was cleaned by a moving plate, and the guide plate and a vibrating motor were used to transport the rice. and remove impurities through blowers and bulk motors.
It improves the threshing effect, reduces the flight of impurities, simplifies the cleaning process, reduces the need for secondary screening, and improves work efficiency.
Smart Images
Figure CN222284023U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rice threshing equipment, in particular to a rice thresher. Background Art
[0002] Rice refers to the rice grains without removing the husk. The rice thresher is a harvesting machine that can separate the rice grains from the stalks. The emergence of threshers has greatly reduced the labor intensity of rice harvesting and threshing, and also improved agricultural productivity.
[0003] When the existing rice thresher is in use, the rice is usually threshed by beating the threshing drum. The structure is relatively simple and the threshing effect is poor. At the same time, the rice stalks will fly out directly after threshing, and the subsequent cleaning is relatively laborious. After the rice is threshed, various rice awns, barnyard grass and other broken leaves will be mixed inside. In order to reduce the impurity content in the rice, the rice needs to be screened for the second time, and the working efficiency is low. Utility Model Content
[0004] The main purpose of the utility model is to provide a rice thresher, which can effectively solve the problems in the background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A rice thresher comprises a threshing box, the bottom of the threshing box is fixedly connected to a support frame, a feed inlet is arranged at the front position of the top of the threshing box, and a striking mechanism is arranged inside the threshing box;
[0007] The striking mechanism includes a threshing motor, a threshing drum 1 and a threshing drum 2. The threshing drum 1 and the threshing drum 2 are rotatably connected and installed at the front and rear positions inside the threshing box respectively through bearings. The threshing motor is installed on one side of the threshing box through a support plate, and the shaft of the threshing motor is transmission-connected to the threshing drum 1 and the threshing drum 2 through a transmission wheel set. A sieve plate matching the threshing drum 1 and the threshing drum 2 is arranged inside the threshing box, and a discharge port matching the sieve plate is opened at the rear end of the threshing box.
[0008] As a further solution of the utility model, a plurality of feeding holes are opened through the upper and lower ends of the screen plate, the connection between the feed port and the screen plate is arranged in an arc shape, and a movable plate is movably connected to the center position of the top of the threshing box.
[0009] As a further solution of the utility model, telescopic rods are fixedly connected to the top of the threshing box at both sides, and baffles matching the discharge port are fixedly connected to one end of the two telescopic rods away from the threshing box.
[0010] As a further solution of the utility model, a screening mechanism is provided at the bottom end of the threshing box, and the screening mechanism includes a discharge box, a guide plate, and a debris collection frame. The discharge box is fixedly connected and installed at the rear position of the bottom end of the threshing box, and a discharge chute is provided at the connection between the discharge box and the threshing box. The guide plate is installed at a lower position inside the threshing box through a buffer spring, and a vibration motor is installed at the center position of the bottom end of the guide plate.
[0011] As a further solution of the utility model, a bulk material rotating plate is rotatably installed at the upper position inside the discharge box through a bearing, and the outer wall of the bulk material rotating plate does not contact the inner wall of the discharge box. A bulk material motor is installed on one side of the discharge box, and the shaft of the bulk material motor is connected to the rotating shaft of the bulk material rotating plate.
[0012] As a further solution of the utility model, the debris collection frame is detachably connected and installed at the rear end of the discharge box, and a collection groove is provided at the connection between the debris collection frame and the discharge box. A blower is installed on the side of the discharge box away from the debris collection frame, and the blower is connected to an air outlet matching the collection groove through an air outlet pipe.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] The utility model provides a striking mechanism and a screening mechanism. When threshing rice, the rice can be put into the threshing box from the feed inlet. Then, the threshing motor drives the first threshing drum and the second threshing drum to rotate, so that the rice is struck multiple times, which is convenient for threshing the rice and improves the threshing effect. At the same time, the threshed rice stalks can be discharged from the threshing box through the discharge port, and the rice stalks can be blocked by the baffle plate to prevent the rice stalks from flying out at will, which is convenient for subsequent centralized cleaning. The movable plate can be opened to clean the broken rice stalks that may be adhered to the first threshing drum and the second threshing drum without disassembly, thereby increasing the cleaning efficiency. At the same time, the rice seeds fall into the lower part of the threshing box through the screen plate, which is convenient for threshing the rice and improves the use effect.
[0015] By means of the provided guide plate and bulk material rotating plate, the rice seeds that do not directly fall into the discharge box can slide into the discharge box through the cooperation of the guide plate and the vibration motor, so as to facilitate the transportation of the rice seeds. At the same time, the discharge box can be blown with air by the blower to blow the rice awns, chaff and other broken leaf impurities from the discharge box into the debris collection frame, so as to facilitate the removal of impurities in the rice seeds. The bulk material motor can be started as needed, and the bulk material rotating plate can be driven by the bulk material motor to rotate, so as to hit the falling rice seeds and various impurities to prevent them from sticking to the rice seeds, so as to facilitate the screening of broken leaf impurities in the rice seeds during threshing, thereby improving the threshing effect, eliminating the need for multiple screening, and increasing work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1This is a schematic diagram of the overall structure of a rice thresher according to the utility model;
[0017] Figure 2 This is a cross-sectional view of the internal structure of a threshing box and a discharge box in the overall structure of a rice thresher of the utility model;
[0018] Figure 3 The utility model is a schematic diagram of the structure of a beating mechanism in a rice thresher.
[0019] In the figure: 1. threshing box; 2. support frame; 3. feed port; 4. movable plate; 5. striking mechanism; 6. threshing motor; 7. threshing drum one; 8. threshing drum two; 9. sieve plate; 10. discharge port; 11. telescopic rod; 12. baffle; 13. screening mechanism; 14. discharge box; 15. guide plate; 16. vibration motor; 17. blower; 18. debris collection frame; 19. bulk material motor; 20. bulk material transfer plate. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0021] like Figure 1-3 As shown, a rice thresher comprises a threshing box 1, a support frame 2 is fixedly connected to the bottom of the threshing box 1, a feed port 3 is arranged at the front position of the top of the threshing box 1, and a striking mechanism 5 is arranged inside the threshing box 1;
[0022] The striking mechanism 5 includes a threshing motor 6, a threshing drum 1 7, and a threshing drum 2 8. The threshing drum 1 7 and the threshing drum 2 8 are respectively rotatably connected through bearings and installed at the front and rear positions inside the threshing box 1. The threshing motor 6 is installed on one side of the threshing box 1 through a support plate, and the shaft of the threshing motor 6 is transmission-connected to the threshing drum 1 7 and the threshing drum 2 8 through a transmission wheel set. A sieve plate 9 matching the threshing drum 1 7 and the threshing drum 2 8 is arranged inside the threshing box 1, and a discharge port 10 matching the sieve plate 9 is opened at the rear end of the threshing box 1.
[0023] In this embodiment, a plurality of feeding holes are provided through the upper and lower ends of the sieve plate 9, the connection between the feed port 3 and the sieve plate 9 is arranged in an arc shape, and a movable plate 4 is movably connected to the center position of the top of the threshing box 1. The movable plate 4 is opened to clean the broken rice stalks that may be stuck on the threshing drum 1 7 and the threshing drum 2 8, thereby improving the cleaning efficiency, and at the same time, the rice seeds are screened by the sieve plate 9.
[0024] In this embodiment, telescopic rods 11 are fixedly connected to both sides of the top of the threshing box 1, and baffles 12 matching the discharge port 10 are fixedly connected to the ends of the two telescopic rods 11 away from the threshing box 1. The baffles 12 can be used to block the rice stalks flying out of the discharge port 10, and the baffles 12 can be pulled as needed to adjust the blocking distance of the discharge port 10.
[0025] In this embodiment, a screening mechanism 13 is provided at the bottom end of the threshing box 1, and the screening mechanism 13 includes a discharge box 14, a guide plate 15, and a debris collection frame 18. The discharge box 14 is fixedly connected and installed at the rear position of the bottom end of the threshing box 1, and a discharge chute is provided at the connection between the discharge box 14 and the threshing box 1. The guide plate 15 is installed at the lower position inside the threshing box 1 through a buffer spring. A vibration motor 16 is installed at the center position of the bottom end of the guide plate 15. The rice seeds can be transported into the discharge box 14 through the set guide plate 15, and the vibration motor 16 can be started as needed to drive the guide plate 15 to vibrate, thereby avoiding the accumulation of rice seeds and facilitating the transportation of rice seeds.
[0026] In the present embodiment, a bulk material rotating plate 20 is rotatably installed at the upper position of the inner part of the discharge box 14 through a bearing, and the outer wall of the bulk material rotating plate 20 does not contact the inner wall of the discharge box 14. A bulk material motor 19 is installed on one side of the discharge box 14, and the shaft of the bulk material motor 19 is connected to the rotating shaft of the bulk material rotating plate 20. The bulk material rotating plate 20 is driven to rotate by the bulk material motor 19, and the rice seeds can be struck when they pass by, and the rice awns and other broken leaves that may be attached to the rice seeds can be removed, so as to facilitate the dispersion of the rice seeds.
[0027] In this embodiment, the debris collection frame 18 is detachably connected and installed at the rear end of the discharge box 14, and a collection groove is provided at the connection between the debris collection frame 18 and the discharge box 14. A blower 17 is installed on the side of the discharge box 14 away from the debris collection frame 18. The blower 17 is connected to an air outlet that matches the collection groove through an air outlet pipe. Through the set blower 17, when rice grains and broken leaf impurities fall, the broken leaf impurities can be blown into the debris collection frame 18, so as to facilitate the cleaning and screening of debris in the rice seeds.
[0028] It should be noted that the utility model is a rice thresher. When in use, first, the external storage mechanism can be placed at the outlet of the discharge box 14, and then the bulk motor 19, the blower 17 and the threshing motor 6 can be started. The shaft of the threshing motor 6 rotates to drive the threshing drum 1 7 and the threshing drum 2 8 to rotate, and then the rice to be threshed is put into the threshing box 1 from the feed inlet 3, and the threshing drum 1 7 and the threshing drum 2 8 are used to beat and thresh. At the same time, the threshing drum 1 7 and the threshing drum 2 8 rotate, and the threshed rice stalks can be transported to fly out of the threshing box 1 from the discharge port 10. Because the baffle 12 is installed in front of the discharge port 10 through the telescopic rod 11, the flying rice stalks can be blocked. At the same time, the baffle 12 can be pulled as needed to adjust the blocking distance of the discharge port 10, thereby improving the flexibility of use.
[0029] The rice seeds that have been taken off fall onto the guide plate 15 and into the discharge box 14 after passing through the sieve plate 9. At the same time, because the guide plate 15 is arranged to be inclined, the rice seeds can be transported into the discharge box 14. When the rice seeds are transported, the vibration motor 16 can be started to drive the guide plate 15 to vibrate, thereby avoiding the accumulation of the rice seeds. The rotation of the shaft of the bulk material motor 19 will drive the bulk material rotating plate 20 to rotate. At the same time, the bulk material rotating plate 20 is installed at the upper position inside the discharge box 14, and the rice seeds can be beaten when they pass through, and the rice awns and other broken leaves that may be attached to the rice seeds can be removed. At the same time, the rice seeds can also be dispersed to avoid their accumulation and sliding down.
[0030] At the same time, the air outlet of the blower 17 is arranged inside the discharge box 14 and corresponds to the debris collection frame 18. When rice and broken leaf impurities fall, the broken leaf impurities can be blown and blown into the debris collection frame 18, which is convenient for cleaning and screening the debris in the rice seeds. The debris collection frame 18 can be detachably installed on the discharge box 14 and can be disassembled when it is full, which is convenient for subsequent centralized processing. After that, the screened rice seeds are discharged from the bottom of the discharge box 14 to complete the threshing process.
[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A rice thresher, characterized in that: It comprises a threshing box (1), the bottom of the threshing box (1) is fixedly connected to a support frame (2), a feed inlet (3) is arranged at the front position of the top of the threshing box (1), and a striking mechanism (5) is arranged inside the threshing box (1); The striking mechanism (5) comprises a threshing motor (6), a threshing drum 1 (7), and a threshing drum 2 (8); the threshing drum 1 (7) and the threshing drum 2 (8) are rotatably connected and installed at the front and rear positions inside the threshing box (1) respectively through bearings; the threshing motor (6) is installed on one side of the threshing box (1) through a support plate, and the shaft of the threshing motor (6) is transmission-connected to the threshing drum 1 (7) and the threshing drum 2 (8) through a transmission wheel group; a sieve plate (9) matching the threshing drum 1 (7) and the threshing drum 2 (8) is arranged inside the threshing box (1); and a discharge port (10) matching the sieve plate (9) is provided at the rear end of the threshing box (1).
2. A rice thresher according to claim 1, characterized in that: A plurality of feeding holes are provided through the upper and lower ends of the sieve plate (9); the connection between the feed port (3) and the sieve plate (9) is arranged in an arc shape; and a movable plate (4) is movably connected to the center of the top of the threshing box (1).
3. A rice thresher according to claim 1, characterized in that: Telescopic rods (11) are fixedly connected to the top of the threshing box (1) at both sides, and baffles (12) matching the discharge port (10) are fixedly connected to the ends of the two telescopic rods (11) away from the threshing box (1).
4. A rice thresher according to claim 1, characterized in that: A screening mechanism (13) is provided at the bottom end of the threshing box (1), and the screening mechanism (13) comprises a discharge box (14), a guide plate (15), and a debris collection frame (18). The discharge box (14) is fixedly connected and installed at a rear position at the bottom end of the threshing box (1), and a discharge chute is provided at the connection between the discharge box (14) and the threshing box (1). The guide plate (15) is installed at a lower position inside the threshing box (1) via a buffer spring, and a vibration motor (16) is installed at a central position at the bottom end of the guide plate (15).
5. A rice thresher according to claim 4, characterized in that: A bulk material rotating plate (20) is rotatably mounted at an upper position inside the discharge box (14) via a bearing, and the outer wall of the bulk material rotating plate (20) does not contact the inner wall of the discharge box (14). A bulk material motor (19) is mounted on one side of the discharge box (14), and the shaft of the bulk material motor (19) is connected to the rotating shaft of the bulk material rotating plate (20).
6. A rice thresher according to claim 4, characterized in that: The debris collection frame (18) is detachably connected and installed at the rear end of the discharge box (14), and a collection groove is provided at the connection between the debris collection frame (18) and the discharge box (14). A blower (17) is installed on the side of the discharge box (14) away from the debris collection frame (18), and the blower (17) is connected to an air outlet matching the collection groove through an air outlet pipe.