Intelligent grain sorting and impurity removing device
By incorporating a chaff and fan into the grain sorting device, combined with a screening mechanism, the problem of removing wheat bran and chaff has been solved, thereby improving the impurity removal efficiency and processing efficiency of grain sorting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-03-17
AI Technical Summary
Existing grain sorting devices are unable to effectively remove wheat bran and chaff, resulting in adulteration of the harvested grain.
A grain sorting and impurity removal device was designed. By setting impurity outlets on both sides of the shell and installing fans, light bran is blown out by wind power. At the same time, combined with a screening mechanism, bran and grain are separated, and grains of different particle sizes are discharged through a guide trough plate.
It effectively removes bran and wheat bran, improving the impurity removal and processing efficiency of grain sorting.
Smart Images

Figure CN223996637U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grain sorting technology, specifically to a smart grain sorting and impurity removal device. Background Technology
[0002] After harvesting, grains need to be screened using sorting devices to remove broken grains. Current grain sorting devices can separate small-sized broken grains using sieves; however, if wheat or other grains are mixed in after harvesting, current grain sorting devices cannot remove bran and chaff. Therefore, improvements are needed to remove bran and chaff from the grains. Utility Model Content
[0003] In view of the problems existing in the current intelligent grain sorting and impurity removal device, this utility model is proposed.
[0004] Therefore, the purpose of this utility model is to provide a grain sorting impurity removal device, which solves the problem that current grain sorting devices can separate broken small-diameter grains through sieve plates. However, after harvesting by harvesters, grains such as wheat grains may contain bran and chaff. Current grain sorting devices cannot remove bran and chaff. Therefore, it is necessary to improve the current grain sorting devices to remove bran and chaff from the grains.
[0005] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:
[0006] A grain sorting and impurity removal device includes a shell, a funnel on the shell, a screening mechanism inside the shell, a pneumatic screening mechanism inside the shell, and impurity outlets at both ends of the shell. Under the action of the pneumatic screening mechanism, bran in the grain falling from the funnel is blown out of the shell by the wind.
[0007] As a preferred embodiment of the grain sorting and impurity removal device of this utility model, a bran discharge pipe is welded at the impurity outlet, and the bran discharge pipe is configured as L-shaped.
[0008] As a preferred embodiment of the grain sorting and impurity removal device of this utility model, the bran discharge pipe has two first through holes and two second through holes, and a first metal mesh and a second metal mesh are welded into the first through holes.
[0009] As a preferred embodiment of the grain sorting and impurity removal device of this utility model, the wind-powered screening mechanism includes a guide trough plate installed at the top of the inner cavity of the housing, and two blowing units are arranged below the guide trough plate, with the two blowing units facing the two impurity outlets.
[0010] In a preferred embodiment of the grain sorting and impurity removal device of this utility model, a support rod is welded to the top of the guide channel plate, a support connecting seat is welded to the top wall of the inner cavity of the housing, the support rod is inserted into the inner wall of the support connecting seat, and internal threaded holes are opened at corresponding positions of the support rod and the support connecting seat. The support rod and the support connecting seat are fixed together by bolts.
[0011] In a preferred embodiment of the grain sorting and impurity removal device of this utility model, the blowing unit includes a first support plate welded to the inner cavity of the housing, a motor fixedly mounted on the first support plate, and fan blades fixedly mounted on the motor.
[0012] In a preferred embodiment of the grain sorting and impurity removal device of this utility model, the screening mechanism includes a screen box with screen holes at the bottom. The bottom right end of the screen box is pivotally hinged to a first hinge block. A second support plate is welded to the bottom of the first hinge block. A second hinge block is welded to the bottom left end of the screen box. A vibrator is pivotally hinged to the second hinge block. The vibrator is fixedly mounted on a third support plate. Both the second and third support plates are welded to the inner wall of the housing.
[0013] In a preferred embodiment of the grain sorting and impurity removal device of this utility model, a first guide channel plate is fixedly installed on the right end of the housing, a second guide channel plate is provided below the first guide channel plate, the second guide channel plate is fixedly installed on the housing, and both the first guide channel plate and the second guide channel plate are inclined.
[0014] Compared with existing technologies:
[0015] 1. By setting outlets on both sides of the shell and installing fans at the outlets, the lighter bran can be blown out of the shell by wind power, thus separating the bran; then the sieving mechanism separates the grains of different sizes, making the impurity removal and sorting process continuous and improving the efficiency of grain sorting and impurity removal.
[0016] 2. By setting up a second guide trough plate and a first guide trough plate, grains of different sizes can be discharged, thus screening and bagging at the same time, further improving the grain processing efficiency. Attached Figure Description
[0017] Figure 1 This is a structural schematic diagram of the present invention;
[0018] Figure 2 Provided by this utility model Figure 1 A sectional view;
[0019] Figure 3 Rear view of the funnel provided by this utility model;
[0020] Figure 4 A cross-sectional view of the bran discharge pipe provided by this utility model;
[0021] Figure 5 Provided by this utility model Figure 3 A sectional view;
[0022] Figure 6 A top view of the sieve box provided by this utility model.
[0023] In the diagram: 1. Shell; 2. Funnel; 3. Bran discharge pipe; 31. First metal mesh; 32. Second metal mesh; 4. Impurity outlet; 5. Second guide trough plate; 6. First guide trough plate; 7. Support connecting seat; 8. Support rod; 9. Guide trough plate; 10. Fan blade; 11. Motor; 12. First support plate; 13. Air inlet; 14. Screen box; 15. Third support plate; 16. Second support plate; 17. Servo motor; 18. Rotating roller; 19. Vibrator. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0025] This utility model provides a grain sorting and impurity removal device. Please refer to [link / reference]. Figure 1-6 The device includes a housing 1, with a door panel 4 hinged to the front end of the housing 1. An air inlet 13 is provided at the rear end of the housing 1. A funnel 2 is provided on the housing 1. A rotating roller 18 is rotatably connected to the bottom of the funnel 2 via a bearing. A feeding rod is welded to the rotating roller 18. One end of the feeding rod is connected to the output shaft of a servo motor 17 via a coupling. A screening mechanism is provided inside the housing 1. A wind-powered screening mechanism is provided inside the housing 1. Both ends of the housing 1 are provided with impurity outlets 4. Under the action of the wind-powered screening mechanism, the bran in the grain falling from the funnel 2 is blown out of the housing 1 by the wind, and the grain is not blown out due to gravity.
[0026] A bran discharge pipe 3 is welded at the 4 outlets for miscellaneous items. The bran discharge pipe 3 is designed to be L-shaped.
[0027] The bran discharge pipe 3 has two first through holes and two second through holes. A first metal mesh 31 and a second metal mesh 32 are welded into the first through hole.
[0028] The wind-powered screening mechanism includes a guide plate 9 installed at the top of the inner cavity of the housing 1, and two blowing units are arranged below the guide plate 9, with the two blowing units facing the two impurity outlets 4.
[0029] A support rod 8 is welded to the top of the guide plate 9, and a support connecting seat 7 is welded to the top wall of the inner cavity of the housing 1. The support rod 8 is inserted into the inner wall of the support connecting seat 7. Internal threaded holes are opened at corresponding positions of the support rod 8 and the support connecting seat 7. The support rod 8 and the support connecting seat 7 are fixed together by bolts.
[0030] The blower unit includes a first support plate 12 welded to the inner cavity of the housing 1, a motor 11 fixedly mounted on the first support plate 12, and a fan blade 10 fixedly mounted on the motor 11.
[0031] A first guide plate 6 is fixedly installed on the right end of the housing 1. A second guide plate 5 is provided below the first guide plate 6. A through hole is provided on the housing 1 for the first guide plate 6 and the second guide plate 5 to pass through. The second guide plate 5 is fixedly installed on the housing 1, and both the first guide plate 6 and the second guide plate 5 are inclined.
[0032] The screening mechanism includes a screen box 14 with screen holes at the bottom. A first hinge block is pivotally hinged to the bottom right end of the screen box 14. A second support plate 16 is welded to the bottom of the first hinge block. A second hinge block is welded to the bottom left end of the screen box 14. A vibrator 19 is pivotally hinged to the second hinge block. The vibrator 19 is fixedly mounted on a third support plate 15. Both the second and third support plates 16 and 15 are welded to the inner wall of the housing 1. A first guide channel plate 6 is located below the right end of the screen box 14.
[0033] In practical use, the grains are placed in the funnel 2, and the servo motor 17 is started to drive the rotating roller 18 to rotate, so that the grains in the funnel 2 fall down. During the falling process, the motor 11 drives the fan blade 10 to rotate, blowing out the bran in the grains. The bran enters the bran discharge pipe 3 through the waste outlet 4 (a snake skin bag or similar can be put under the bran discharge pipe 3 to hold the bran).
[0034] The grain falls into the sieve box 14, and the vibrator 19 causes the sieve box 14 to vibrate. The broken small grain particles fall into the second guide plate 5, and the large grain particles roll down the sieve box 14 and fall into the first guide plate 6. The large grain particles and the broken small grain particles are collected at the bottom of the first guide plate 6 and the second guide plate 5 using appropriate containers.
[0035] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A grain intelligent sorting and impurity removing device, comprising a shell (1), a hopper (2) is arranged on the shell (1), and a screening mechanism is arranged in the shell (1), characterized in that: The shell (1) is provided with a wind screening mechanism, both ends of the shell (1) are provided with a foreign matter outlet (4), and the bran in the grain falling from the hopper (2) is blown out of the shell (1) under the action of the wind screening mechanism.
2. A grain intelligent sorting and impurity removing device according to claim 1, characterized in that, The bran discharge pipe (3) is welded at the foreign matter outlet (4), and the bran discharge pipe (3) is provided in an L shape.
3. A grain intelligent sorting and impurity removing device according to claim 2, characterized in that, Two first through holes and two second through holes are formed in the bran discharge pipe (3), and a first metal mesh (31) and a second metal mesh (32) are welded in the first through holes.
4. A grain intelligent sorting and impurity removing device according to claim 2, characterized in that, The wind screening mechanism comprises a flow guide groove plate (9) installed at the top of the inner cavity of the shell (1), two blowing units are arranged below the flow guide groove plate (9), and the two blowing units are opposite to the two foreign matter outlets (4).
5. A grain intelligent sorting and impurity removing device according to claim 4, characterized in that, A support rod (8) is welded at the top of the flow guide groove plate (9), a support connecting seat (7) is welded on the top wall of the inner cavity of the shell (1), the support rod (8) is inserted into the inner wall of the support connecting seat (7), and internally threaded holes are formed in corresponding positions of the support rod (8) and the support connecting seat (7), and the support rod (8) and the support connecting seat (7) are fixed through bolts.
6. A grain intelligent sorting and impurity removal device according to claim 4 or 5, characterized in that, The blowing unit comprises a first support plate (12) welded on the inner cavity of the shell (1), a motor (11) is fixedly installed on the first support plate (12), and a fan blade (10) is fixedly installed on the motor (11).
7. A grain intelligent sorting and impurity removing device according to claim 1, characterized in that, The screening mechanism comprises a screen box (14), the bottom of the screen box (14) is provided with a screen hole, the right end bottom of the screen box (14) is hingedly connected with a first hinge block, the bottom of the first hinge block is welded with a second support plate (16), the left end bottom of the screen box (14) is welded with a second hinge block, the second hinge block is hingedly connected with a vibrator (19) through a pivot, the vibrator (19) is fixedly installed on a third support plate (15), and the second support plate (16) and the third support plate (15) are welded on the inner wall of the shell (1).
8. A grain intelligent sorting and impurity removing device according to claim 7, characterized in that, The right end of the shell (1) is fixedly installed with a first flow guide groove plate (6), a second flow guide groove plate (5) is arranged below the first flow guide groove plate (6), the second flow guide groove plate (5) is fixedly installed on the shell (1), and the first flow guide groove plate (6) and the second flow guide groove plate (5) are both arranged in an inclined manner.