Combined grain screening machine
The grain screening machine, with its modular design and multi-stage screening and dust collection components, solves the problems of low screening efficiency and inconvenient cleaning in existing technologies, thereby improving the efficiency and purity of grain screening.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-12
- Publication Date
- 2026-03-20
AI Technical Summary
Existing grain screening machines are inefficient and difficult to clean, with impurities easily accumulating inside, affecting their service life.
Designed as a modular structure, it includes sieve barrel one and sieve barrel two, which are connected by quick-release components. It features multi-stage screening, a dust collection component for dust separation, and removable screens to adapt to different grain screening methods.
Multi-stage screening improves efficiency, facilitates equipment cleaning, ensures stable equipment operation, and enhances the purity and quality of grains.
Smart Images
Figure CN224010422U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural machinery technology, specifically to a combined grain screening machine. Background Technology
[0002] Grain screening is an important process. During the harvesting process, various impurities may be mixed in, and dust may adhere to the grain. These impurities can affect the purity of the grain and even its shelf life. Therefore, screening is an important step to ensure the quality, safety, and economic value of grain.
[0003] Existing grain screening machines are often single-stage screening machines, which require workers to repeatedly operate to complete the screening operation. This results in low screening efficiency. Moreover, the equipment is often a one-piece design, which is not convenient to disassemble and clean its interior. As a result, grain particles may accumulate in the dead corners of the equipment, causing equipment failure and affecting its service life. Utility Model Content
[0004] (I) Technical problems to be solved
[0005] The technical problem to be solved by this utility model is to overcome the defects of low efficiency and inconvenience in cleaning the inside of the single-stage screening machine, and to provide a combined grain screening machine.
[0006] (II) Technical Solution
[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a combined grain screening machine, including a screening barrel 1 and a screening barrel 2. The screening barrel 2 is connected to the screening barrel 1 above the screening barrel 1 via a quick-release assembly. The screening barrel 1 includes a base, and a barrel shell 1 is provided around the base. A rotating rod 1 is rotatably provided inside the barrel shell 1. A centrifugal motor is provided at the bottom of the base. One end of the rotating rod 1 is connected to the centrifugal motor. A fixing plate 1 is fixedly connected to the rotating rod 1. A filter barrel 1 is provided on the fixing plate 1. A screen 1 is provided inside the filter barrel 1 and connected to the fixing plate 1. A dust collection assembly includes a dust collection box. A dust collection fan is provided at the bottom of the dust collection box. The dust collection box is connected to the bottom of the screening barrel 1 via a dust collection pipe. The screening barrel 2 includes a barrel shell 2. A fixing frame is fixedly connected inside the barrel shell 2. A rotating rod 2 is rotatably provided on the fixing frame. A screen 2 is connected to the rotating rod 2. A filter barrel 2 is provided on the fixing frame outside the screen 2.
[0008] As an improvement: the first rotating rod and the second rotating rod are concentric, and the top of the first rotating rod is provided with a slot, and the bottom of the second rotating rod passes through the fixing frame and is connected to a locking block that matches the slot.
[0009] As improvement: the bottom of the rotating rod is provided with a fixed plate two, the fixed plate one and the fixed plate two are provided with connecting grooves, the screen one and the screen two are fixedly connected with the fixed plate one and the fixed plate two by being screwed into the connecting grooves.
[0010] As improvement: the outer wall of the rotating rod one and the rotating rod two is provided with a limiting block, the center of the screen one and the screen two is provided with a plug hole matched with the limiting block, and the screen one is smaller than the screen two in mesh diameter.
[0011] As improvement: the quick release assembly is provided with two groups, the quick release assembly comprises a connecting block and an L-shaped fixed rod, the outer wall of the barrel shell one is provided with a fixed piece in concave structure, the fixed rod is arranged in the fixed piece through a plurality of spring connections, the connecting block is provided with a connecting hole matched with the fixed rod, and the fixed piece is slidably provided with a push block connected with the fixed rod.
[0012] As improvement: the dust collection box is provided with a dust collection box pulled in, and the bottom surface of the dust collection box is provided with a dustproof net.
[0013] As improvement: the top of the barrel shell one is provided with an insertion plate, and the bottom of the barrel shell two is provided with an insertion slot one matched with the insertion plate.
[0014] As improvement: the bottom of the fixed frame is provided with an insertion slot two matched with the barrel wall of the filter barrel one.
[0015] (Three), beneficial effects
[0016] Compared with the prior art, the utility model has the advantages of:
[0017] 1. Through the setting of the screen barrel one and the screen barrel two, multi-stage screening of grain crops can be realized, so that the efficiency of grain screening is improved, the screen barrel one and the screen barrel two are designed in a split type, the quick release assembly is used for combined connection, the quick release assembly is convenient and fast to disassemble and clean, so that stable operation of the equipment is ensured.
[0018] 2. Meanwhile, the screen one and the screen two are designed to be detachable, different specifications and sizes of screens can be conveniently disassembled and replaced, so that the screens are suitable for screening of different grain crops.
[0019] 3. The equipment is also provided with a dust collection assembly, under the action of a centrifugal motor, dust is separated from grain by centrifugal force, and is collected by a dust collection fan, so that the purity and quality of the grain are improved. DETAILED DESCRIPTION
[0020] Figure 1 is a structural schematic view of a combined grain screening machine.
[0021] Figure 2 is Figure 1 an explosion structural schematic view.
[0022] Figure 3 is Figure 1 a bottom view structural schematic diagram.
[0023] Figure 4 is Figure 1 a top view structural schematic diagram of the sieve barrel in
[0024] Figure 5 is Figure 4 a partial A enlarged structural schematic diagram in
[0025] Figure 6 is Figure 1 a front partial sectional view structural schematic diagram of
[0026] Figure 7 is Figure 6 a partial B enlarged structural schematic diagram in
[0027] Figure 8 is Figure 2 a sieve net structural schematic diagram in
[0028] Figure 9 is Figure 2 a top view structural schematic diagram of the sieve barrel two in
[0029] Figure 10 is Figure 9 a bottom view structural schematic diagram of
[0030]
BRIEF DESCRIPTION OF DRAWINGS
[0031] 1, base; 2, barrel shell one; 3, rotating rod one; 4, centrifugal motor; 5, fixed plate one; 6, filter barrel one; 7, sieve net one; 8, dust collection box; 9, dust collection fan; 10, barrel shell two; 11, fixed frame; 12, rotating rod two; 13, sieve net two; 14, filter barrel two; 15, clamping groove; 16, clamping block; 17, fixed plate two; 18, connecting groove; 19, limiting block; 20, insertion hole; 21, connecting block; 22, fixed rod; 23, fixing piece; 24, spring; 25, connecting hole; 26, push block; 27, dust collection box; 28, dustproof net; 29, plug plate; 30, insertion groove one; 31, insertion groove two. DETAILED DESCRIPTION
[0032] The utility model will be made further detailed description in combination with the drawings. Same parts are indicated with same reference numerals in the drawings.
[0033] It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" refer to the directions towards or away from the geometric center of a particular component.
[0034] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0035] Example 1
[0036] Combined with appendix Figures 1 to 3 As shown, a combined grain screening machine includes a screening barrel 1 and a screening barrel 2. Screen barrel 1 includes a base 1, with a barrel shell 2 surrounding the base 1. A rotating rod 3 is rotatably mounted inside the barrel shell 2. A centrifugal motor 4 is mounted at the bottom of the base 1. One end of the rotating rod 3 is connected to the centrifugal motor 4. A fixing plate 5 is fixedly connected to the rotating rod 3. A filter barrel 6 is mounted on the fixing plate 5. A screen 7 is located inside the filter barrel 6 and connected to the fixing plate 5. Screen barrel 2 includes a barrel shell 2 10. A fixing frame 11 is fixedly connected inside the barrel shell 2 10. A rotating rod 2 12 is rotatably mounted on the fixing frame 11. A screen 2 13 is connected to the rotating rod 2 12. A filter barrel 2 14 is located outside the screen 2 13 on the fixing frame 11.
[0037] At the same time, combined with the appendix Figure 4 and Figure 10 As shown, the rotating rod 3 and the rotating rod 12 are concentric, and the top of the rotating rod 3 is provided with a slot 15. The bottom of the rotating rod 12 is connected to a fixing frame 11 through which a locking block 16 adapted to the slot 15 is connected. The locking block 16 is inserted into the slot 15 to realize the connection between the rotating rod 3 and the rotating rod 12, so as to realize synchronous rotation and thus perform multi-stage screening of grain.
[0038] Among them, combined with the appendix Figure 4 , Figure 5 and Figure 8 As shown, a fixing plate 17 is provided at the bottom of the rotating rod 12. Both the fixing plate 5 and the fixing plate 17 are provided with connecting grooves 18. The screen 7 and the screen 13 are fixedly connected to the fixing plate 5 and the fixing plate 17 respectively by being threaded into the connecting grooves 18. The outer walls of the rotating rod 3 and the rotating rod 12 are provided with limiting blocks 19. The center of the screen 7 and the screen 13 is provided with insertion holes 20 that match the limiting blocks 19. The mesh diameter of the screen 7 is smaller than that of the screen 13. This design ensures that the position between the rotating rod and the screen is fixed, thereby ensuring that the screen rotates with the rotating rod.
[0039] During grain screening, the centrifugal motor 4 drives the rotating rod 1 3 and rotating rod 2 12 to rotate synchronously. The centrifugal force generated during the rotation can throw the dust out of the filter barrel. The grain that meets the standard falls from the larger mesh screen 2 13 to the smaller mesh screen 1 7 below. Since the centrifugal motor 4 drives the screen to rotate continuously, the chance of screen clogging is reduced.
[0040] The dust removed in the screening process will accumulate in the equipment, affecting the quality of the grain, and the dust collection assembly is shown in Figure 2 and Figure 3 The dust collection assembly includes a dust collection box 8 provided with a dust collection fan 9 at the bottom, and the dust collection box 8 is connected to the bottom of the sieve barrel through a dust collection pipe. A dust collection box 27 is pulled out in the dust collection box 8, and a dust screen 28 is provided on the bottom surface of the dust collection box 27.
[0041] The dust collection assembly is shown in Figure 10 The bottom of the fixed frame 11 is provided with a slot 2 31 matched with the barrel wall of the first filter barrel 6. This design ensures the close connection between the first filter barrel 6 and the second filter barrel 14, and the filter holes on the first filter barrel 6 and the second filter barrel 14 have the same size.
[0042] The dust collection fan 9 uses the pressure difference to suck the dust into the dust collection box 8, and finally falls into the dust collection box 27 for subsequent worker cleaning. The setting of the dust screen 28 can prevent dust from entering the dust collection fan 9, ensuring the safety of the dust collection work.
[0043] Example two
[0044] To facilitate cleaning of the equipment, the first sieve barrel and the second sieve barrel are designed in a split type. Based on example one, the dust collection assembly is shown in Figure 4 , Figure 6 , Figure 7 , Figure 9 and Figure 10 The second sieve barrel is connected above the first sieve barrel through a quick release assembly. The quick release assembly includes a connecting block 21 and an L-shaped fixing rod 22. A fixed part 23 with a concave structure is provided on the outer wall of the first barrel shell 2. The fixing rod 22 is connected in the fixed part 23 through a plurality of springs 24. A connecting hole 25 matched with the fixing rod 22 is provided on the connecting block 21. A push block 26 connected with the fixing rod 22 is slidingly arranged in the fixed part 23. The top of the first barrel shell 2 is provided with a plug plate 29, and the bottom of the second barrel shell 10 is provided with a slot 1 30 matched with the plug plate 29.
[0045] In use, the plug plate 29 is aligned and clamped into the slot 1 30, and the connecting block 21 is clamped in the fixed part 23. At this time, the fixing rod 22 is inserted into the connecting hole 25, and the second sieve barrel is fixed to ensure the stability of the second sieve barrel during equipment operation. After work, the push block 26 is pushed into the fixed part 23, and the fixing rod 22 is stretched out of the connecting hole 25 and retracted into the fixed part 23. At this time, the second sieve barrel can be disassembled and cleaned one by one.
[0046] The above has described the utility model and its implementation mode, which is not restrictive, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.
Claims
1. A combined grain screening machine, characterized in that: It includes a sieve barrel one and a sieve barrel two, wherein the sieve barrel two is connected to and positioned above the sieve barrel one via a quick-release assembly; A sieve bucket includes a base (1), a bucket shell (2) surrounding the base (1), a rotating rod (3) rotatably disposed inside the bucket shell (2), a centrifugal motor (4) disposed at the bottom of the base (1), one end of the rotating rod (3) being connected to the centrifugal motor (4), a fixing plate (5) being fixedly connected to the rotating rod (3), a filter bucket (6) being disposed on the fixing plate (5), and a sieve (7) being disposed inside the filter bucket (6) and connected to the fixing plate (5). The dust collection assembly includes a dust collection box (8), the bottom of which is equipped with a dust collection fan (9), and the dust collection box (8) is connected to the bottom of a sieve bucket through a dust collection pipe; The second sieve includes a second shell (10), a fixed frame (11) is fixedly connected inside the second shell (10), a second rotating rod (12) is rotatably provided on the fixed frame (11), a second screen (13) is connected on the second rotating rod (12), and a second filter barrel (14) is provided on the fixed frame (11) outside the second screen (13).
2. The combined grain screening machine according to claim 1, characterized in that: The rotating rod one (3) and the rotating rod two (12) are concentric, and the top of the rotating rod one (3) is provided with a slot (15), and the bottom of the rotating rod two (12) is connected to a locking block (16) that is compatible with the slot (15) through the fixing frame (11).
3. The combined grain screening machine according to claim 1, characterized in that: A fixing plate 2 (17) is provided at the bottom of the rotating rod 2 (12). Both the fixing plate 1 (5) and the fixing plate 2 (17) are provided with connecting grooves (18). The screen 1 (7) and the screen 2 (13) are fixedly connected to the fixing plate 1 (5) and the fixing plate 2 (17) respectively by threading into the connecting grooves (18).
4. A combined grain screening machine according to claim 3, characterized in that: Both rotating rod 1 (3) and rotating rod 2 (12) are provided with limiting blocks (19) on their outer walls. Screen 1 (7) and screen 2 (13) are provided with insertion holes (20) that match the limiting blocks (19) at their centers, and the mesh diameter of screen 1 (7) is smaller than that of screen 2 (13).
5. A combined grain screening machine according to claim 1, characterized in that: The quick-release assembly is provided in two sets. The quick-release assembly includes a connecting block (21) and an L-shaped fixing rod (22). The outer wall of the barrel shell (2) is provided with a U-shaped fixing member (23). The fixing rod (22) is connected to the fixing member (23) by multiple springs (24). The connecting block (21) is provided with a connecting hole (25) that cooperates with the fixing rod (22). The fixing member (23) is slidably provided with a push block (26) that is connected to the fixing rod (22).
6. A combined grain screening machine according to claim 1, characterized in that: The dust collection box (8) is equipped with a dust collection box (27) that can be pulled out, and the bottom surface of the dust collection box (27) is equipped with a dustproof net (28).
7. A combined grain screening machine according to claim 5, characterized in that: The top of the first barrel shell (2) is provided with a plate (29), and the bottom of the second barrel shell (10) is provided with a slot (30) that matches the plate (29).
8. A combined grain screening machine according to claim 1, characterized in that: The bottom of the fixing frame (11) is provided with a second slot (31), which is adapted to the wall of the filter bucket (6).