Rice threshing and cleaning integrated machine with sorting function
By introducing a discharge pipe, a material distribution component, and a blower into the rice threshing and cleaning integrated machine, the uniform dispersion of rice and the separation of light and heavy impurities are achieved, solving the problem of incomplete impurity separation in traditional equipment and improving the cleanliness of rice and the efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SILK ROAD HUI SUPPLY CHAIN MANAGEMENT (YUNNAN) CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional rice threshing equipment is unable to thoroughly separate impurities and shriveled grains of different sizes and weights, resulting in low rice purity, which affects quality and sales price.
A rice threshing and cleaning integrated machine with sorting function was designed. By combining the unloading pipe, the material distribution component and the fan, the rice can be evenly dispersed and the light and heavy impurities can be separated. The cooperation between the unloading hopper and the fan can achieve efficient sorting.
It improves the cleanliness of rice, enhances the uniformity of sorting and the ease of use of the equipment, reduces the tedious workload of manual sorting, and improves work efficiency.
Smart Images
Figure CN224521808U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of rice processing equipment, specifically to an integrated rice threshing and cleaning machine with sorting function. Background Technology
[0002] In rice cultivation, threshing and cleaning are crucial steps after harvest. Traditional rice threshing equipment often only has a single threshing function, leaving a large amount of impurities such as broken straw, rice leaves, and shriveled grains in the threshed rice. This requires tedious manual screening and separation, which not only consumes a lot of manpower and time but also often yields unsatisfactory results. With the development of agricultural modernization, the demand for efficient and precise rice threshing and cleaning equipment is becoming increasingly urgent.
[0003] Utility model patent CN217657169U discloses a threshing and cleaning mechanism for a rice harvester, including a threshing box. A threshing roller is located at the top of the threshing box, with both ends connected to the threshing box via rotating bearings. A first drive motor is coaxially mounted at one end of the threshing roller and fixed to the threshing box by a bracket. A feed inlet is located on one side of the top of the threshing box. A rotating rod is located at the lower end of the threshing roller, with both ends connected to the threshing box via rotating bearings. A square frame is located on the side of the rotating rod away from the inner wall of the threshing box. In use, the rotation of a cam causes the square frame to reciprocate up and down around the rotating rod. Combined with the inertia of the rice grains, this allows rice grains and rice straw debris falling onto a first sieve plate to detach from the surface of the first sieve plate and repeatedly move longitudinally on it, thereby improving the screening effect of the first sieve plate.
[0004] While this technical solution has its advantages, most current rice threshing and cleaning integrated machines that use sieve plates for processing still have some shortcomings. For example, using sieve plates makes it difficult to achieve thorough screening, and they can only perform screening operations for rice and straw. The sorting effect on impurities of different sizes and weights, as well as shriveled grains, is not good, resulting in low purity of the final rice, which affects the quality and selling price of the rice. In view of this, we propose a rice threshing and cleaning integrated machine with sorting function. Utility Model Content
[0005] The purpose of this invention is to provide an integrated rice threshing and cleaning machine with sorting function to solve the defects mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A rice threshing and cleaning integrated machine with sorting function includes a rice threshing and cleaning machine body. A discharge pipe is fixedly installed at the discharge end of the rice threshing and cleaning machine body. A sorting box for sorting operation is set at the end of the discharge pipe. Two symmetrical discharge hoppers are fixedly installed on the bottom plate of the sorting box. A fan is fixedly installed on the left end plate of the sorting box. A debris discharge hole is set on the right end plate of the discharge hopper. A material distribution component for pushing the rice to disperse and fall is also set at the lower part of the discharge pipe.
[0008] Preferably, the unloading pipe is inclined downward at 30° to 60°, and a valve is fixedly installed on the unloading pipe;
[0009] This setting facilitates control over the amount of material dropped and also makes unloading smoother.
[0010] Preferably, the unloading hopper is funnel-shaped, and the two unloading hoppers on the left and right are close to each other.
[0011] Preferably, the fan blows air towards the side of the debris discharge hole, and the plane containing the bottom wall of the debris discharge hole is inclined downward at 45°~60°.
[0012] Preferably, the material distribution assembly includes a round bushing and a rectangular bushing respectively installed on the front and rear side plates of the sorting box. A central cylindrical rod is slidably connected inside the round bushing. A rectangular rod is fixedly installed at the front end of the central cylindrical rod. The rectangular rod passes through the rectangular bushing and is slidably connected to the rectangular bushing. Multiple material feeding discs are fixedly installed on the central cylindrical rod. The rear end of the central cylindrical rod is driven by a small motor and moves back and forth.
[0013] This setting can disperse the rice, making the sorting more thorough.
[0014] Preferably, both the round bushing and the rectangular bushing are fixedly mounted with a retaining ring, and the retaining ring is detachably mounted on the sorting box.
[0015] Preferably, the central cylindrical rod is cylindrical, the feeding disc is disc-shaped, and the rectangular rod has a rectangular cross-section;
[0016] This setting prevents the central cylindrical rod and rectangular rod from rotating during movement.
[0017] Preferably, a connecting rod is hinged to the rear end of the central cylindrical rod, a central disk is fixedly installed at the end of the output shaft of the small motor, and a horizontally arranged drive shaft is fixedly installed on the front side of the central disk away from its center. The drive shaft passes through the end plate of the connecting rod and is rotatably connected to the connecting rod.
[0018] This setup allows the small motor to operate normally, driving the central cylindrical rod to perform reciprocating left and right movements.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] 1. This utility model sets up a material distribution component, which uses a small motor to drive the central cylindrical rod to make reciprocating left and right movements, thereby driving the material distribution plate to disperse the rice falling from the unloading pipe. This allows the rice to fall more evenly and avoids the rice piling up and affecting the subsequent sorting effect. It achieves full dispersion of rice before sorting and improves the uniformity of sorting.
[0021] 2. This utility model, by setting a blower and two discharge hoppers in the sorting box, blows air towards the debris discharge hole. When the dispersed rice falls, lighter impurities such as shriveled grains and straw are blown towards the debris discharge hole and discharged, while plump rice grains fall into the discharge hopper below. This achieves effective separation of impurities and rice grains of different weights, solves the problem that traditional sieves are difficult to thoroughly screen impurities of different sizes and weights as well as shriveled grains, and improves the purity of rice.
[0022] 3. This utility model, by setting the unloading pipe to be inclined downward and installing a valve, facilitates the control of the amount and speed of rice falling, allowing the rice to smoothly enter the sorting box for sorting. At the same time, the unloading hopper is funnel-shaped and close to each other on both sides, which facilitates the collection of sorted rice. The overall structure is reasonably designed, realizing the smooth operation of the rice threshing and cleaning process, and achieving the effect of improving the convenience of equipment use and work efficiency. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0024] Figure 2 This is a schematic diagram of the material distribution component of this utility model;
[0025] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;
[0026] The meanings of the labels in the diagram are as follows:
[0027] 1. Main body of rice threshing and cleaning machine; 10. Discharge pipe; 11. Valve;
[0028] 2. Sorting box; 20. Unloading hopper; 21. Blower; 22. Debris discharge hole;
[0029] 3. Material distribution assembly; 30. Round shaft sleeve; 31. Rectangular shaft sleeve; 32. Fixing ring; 33. Central cylindrical rod; 34. Material feeding disc; 35. Rectangular rod; 36. Connecting rod; 37. Small motor; 38. Central disc; 381. Drive shaft. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0031] Please see Figures 1-3 This utility model provides a technical solution: a rice threshing and cleaning integrated machine with sorting function, including a rice threshing and cleaning machine body 1, a discharge pipe 10 fixedly installed at the discharge end of the rice threshing and cleaning machine body 1, a sorting box 2 for sorting operation provided at the end of the discharge pipe 10, two symmetrical discharge hoppers 20 fixedly installed on the bottom plate of the sorting box 2, a fan 21 fixedly installed on the left end plate of the sorting box 2, and a debris discharge device provided on the right end plate of the discharge hopper 20. Below the discharge pipe 10, there is a material distribution component 3 for dispersing and falling rice, forming a complete rice threshing and cleaning system with sorting function. The rice processed by the main body 1 of the rice threshing and cleaning machine enters the sorting box 2 through the discharge pipe 10. The material distribution component 3 disperses the rice, and the blower 21 blows away impurities and discharges them from the debris discharge hole 22. The pure rice falls into the discharge hopper 20, so that the whole equipment realizes the integration of threshing, cleaning and sorting, and achieves the effect of efficient rice processing.
[0032] like Figure 1 As shown, the unloading pipe 10 is set at a downward inclination of 30°~60°. A valve 11 is fixedly installed on the unloading pipe 10. The inclination angle makes it easier for the rice to slide down under the action of gravity. The valve 11 can flexibly control the amount of material falling, so that the rice can enter the sorting box 2 at an appropriate speed and quantity, avoiding excessive material falling and clogging or insufficient material falling and affecting efficiency, thus achieving the effect of ensuring smooth unloading and easy control.
[0033] like Figure 1 As shown, the unloading hopper 20 is funnel-shaped, with the two unloading hoppers 20 on the left and right sides close together. The funnel-shaped structure uses gravity to guide the rice to gather, making it convenient and quick to collect the sorted rice. The design of the two sides close together saves space and makes the collection process more concentrated, making rice collection more convenient and efficient, thus improving collection efficiency.
[0034] In this embodiment, the blower 21 blows air towards the debris discharge hole 22. The plane of the bottom wall of the debris discharge hole 22 is inclined downward at 45°~60°. The wind force generated by the blower 21 can accurately blow light impurities toward the debris discharge hole 22. The inclined bottom wall makes it easier for impurities to be discharged under the action of gravity and wind force, reducing impurity residue and making the impurities discharged more thoroughly, thereby improving the impurity removal effect.
[0035] like Figures 1-3 As shown, the material distribution assembly 3 includes a round bushing 30 and a rectangular bushing 31 respectively installed on the front and rear side plates of the sorting box 2. A central cylindrical rod 33 is slidably connected inside the round bushing 30. A rectangular rod 35 is fixedly installed at the front end of the central cylindrical rod 33. The rectangular rod 35 passes through the rectangular bushing 31 and is slidably connected to the rectangular bushing 31. Multiple material feeding discs 34 are fixedly installed on the central cylindrical rod 33. The rear end of the central cylindrical rod 33 is driven by a small motor 37 to reciprocate. The small motor 37 drives the central cylindrical rod 33 to reciprocate within the round bushing 30 and the rectangular bushing 31, causing the material feeding discs 34 to disperse the rice. The rectangular rod 35 prevents the central cylindrical rod 33 from rotating, making the rice more evenly dispersed and avoiding accumulation, thereby improving the uniformity of sorting.
[0036] In addition, both the round bushing 30 and the rectangular bushing 31 are fixedly installed with retaining rings 32. The retaining rings 32 are detachably installed on the sorting box 2 by multiple fastening screws, which facilitates the installation, disassembly and maintenance of the round bushing 30, the rectangular bushing 31 and related components, making equipment maintenance more convenient, reducing maintenance difficulty and achieving the effect of improving the convenience of equipment maintenance.
[0037] It is worth noting that the central cylindrical rod 33 is cylindrical, the feeding disc 34 is disc-shaped, and the rectangular rod 35 has a rectangular cross-section. The cylindrical central cylindrical rod 33 is easy to slide within the circular bushing 30, and the disc-shaped feeding disc 34 can more evenly distribute the rice. The rectangular rod 35 cooperates with the rectangular bushing 31 to prevent the central cylindrical rod 33 from rotating, making the feeding assembly 3 run more stably and achieving the effect of ensuring the reliable operation of the feeding assembly.
[0038] It is worth noting that a connecting rod 36 is hinged to the rear end of the central cylindrical rod 33, and a central disk 38 is fixedly installed at the end of the output shaft of the small motor 37. A horizontally arranged drive shaft 381 is fixedly installed on the front side of the central disk 38 away from its center. The drive shaft 381 passes through the end plate of the connecting rod 36 and is rotatably connected to the connecting rod 36. When the small motor 37 rotates, the drive shaft 381 drives the connecting rod 36 to move, thereby causing the central cylindrical rod 33 to reciprocate left and right. This realizes the conversion of the rotational motion of the motor into the reciprocating motion of the central cylindrical rod 33, so that the material distribution component 3 can work stably and achieve the effect of ensuring the material distribution effect.
[0039] Finally, it should be noted that the fan 21, small motor 37, corresponding control system and external power supply involved in this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components and adapted controllers and power supplies, are connected by wires. The specific connection method should refer to the working principle of this utility model. The electrical connection between each electrical component is completed in the order of operation. The detailed connection method is a technology known in the art.
[0040] When using the rice threshing and cleaning integrated machine with sorting function, first start the main body 1 of the rice threshing and cleaning machine. After it is running normally, open the valve 11 on the discharge pipe 10. The threshed and cleaned rice slides out through the downwardly inclined discharge pipe 10 and enters the sorting box 2. At this time, start the small motor 37 of the material distribution component 3. The motor drives the central plate 38 to rotate. The drive shaft 381 pulls the central cylindrical rod 33 and the rectangular rod 35 through the connecting rod 36 to move back and forth in the round shaft sleeve 30 and the rectangular shaft sleeve 31. Multiple material feeding discs 34 disperse the falling rice. At the same time, turn on the fan 21 and blow air towards the debris discharge hole 22. Light impurities in the dispersed rice are blown to the bottom wall inclined debris discharge hole 22 and discharged. Full grains fall into the two funnel-shaped discharge hoppers 20 that are close to each other below. During the process, the amount of material falling can be adjusted by the valve 11. After the process is completed, turn off all equipment and collect the pure rice from the discharge hopper 20 to complete the entire sorting operation.
[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A rice threshing and cleaning integrated machine with sorting function, comprising a rice threshing and cleaning machine body (1), characterized in that: The rice threshing and cleaning machine body (1) is fixedly equipped with a discharge pipe (10) at the discharge end. The end of the discharge pipe (10) is provided with a sorting box (2) for sorting operations. The bottom plate of the sorting box (2) is fixedly equipped with two symmetrical discharge hoppers (20). The left end plate of the sorting box (2) is fixedly equipped with a blower (21). The right end plate of the discharge hopper (20) is provided with a debris discharge hole (22). The lower part of the discharge pipe (10) is also provided with a material distribution component (3) for pushing the rice to disperse and fall.
2. The rice threshing and cleaning integrated machine with sorting function according to claim 1, characterized in that: The unloading pipe (10) is inclined downward at 30°~60°, and a valve (11) is fixedly installed on the unloading pipe (10).
3. The rice threshing and cleaning integrated machine with sorting function according to claim 1, characterized in that: The unloading hopper (20) is funnel-shaped, and the two unloading hoppers (20) on the left and right are close to each other.
4. The rice threshing and cleaning integrated machine with sorting function according to claim 1, characterized in that: The fan (21) blows air toward the debris discharge hole (22), and the plane of the bottom wall of the debris discharge hole (22) is inclined downward at 45°~60°.
5. The rice threshing and cleaning integrated machine with sorting function according to claim 1, characterized in that: The material distribution assembly (3) includes a round bushing (30) and a rectangular bushing (31) respectively installed on the front and rear side plates of the sorting box (2). A central cylindrical rod (33) is slidably connected inside the round bushing (30). A rectangular rod (35) is fixedly installed at the front end of the central cylindrical rod (33). The rectangular rod (35) passes through the rectangular bushing (31) and is slidably connected to the rectangular bushing (31). Multiple material feeding discs (34) are fixedly installed on the central cylindrical rod (33). The rear end of the central cylindrical rod (33) is driven by a small motor (37) and moves back and forth.
6. The rice threshing and cleaning integrated machine with sorting function according to claim 5, characterized in that: Both the round bushing (30) and the rectangular bushing (31) are fixedly installed with a fixing ring (32), which is detachably installed on the sorting box (2).
7. The rice threshing and cleaning integrated machine with sorting function according to claim 6, characterized in that: The central cylindrical rod (33) is cylindrical, the feeding disc (34) is disc-shaped, and the rectangular rod (35) has a rectangular cross-section.
8. The rice threshing and cleaning integrated machine with sorting function according to claim 7, characterized in that: The rear end of the central cylindrical rod (33) is hinged to a connecting rod (36), and the output shaft of the small motor (37) is fixedly mounted with a central disk (38). A horizontally arranged drive shaft (381) is fixedly mounted on the front side of the central disk (38) away from its center position. The drive shaft (381) passes through the end plate of the connecting rod (36) and is rotatably connected to the connecting rod (36).