Multi-stage screening grain cleaning sieve
By designing a multi-stage grain cleaning screen with an adjustable extension block and rotating rod structure, the problem of being unable to adapt to different types and humidity of grains in the existing technology is solved, and efficient grain screening and convenient maintenance are achieved.
Patent Information
- Application Number
- CN202421079820.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-05-17
AI Technical Summary
The existing grain cleaning screen cannot adapt to different types and humidity grains, resulting in insulated screening efficiency.
Designed a multi -level screening grain cleaning sieve. Through adjustable extension blocks and rod structures, the staff allows staff to flexibly adjust the tilt angle of the sieve, and the disassembly sieve plate in the inner wall of the grain box can replace the size of different holes according to the need. Sieve board.
It achieves efficient screening of grains of different types and humidity, improves grain cleaning efficiency, and the adjustability and disassembly of the equipment make maintenance and replacement more convenient.
Smart Images
Figure CN222385312U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grain cleaning, in particular to a multi-stage screening grain cleaning screen. Background Art
[0002] Grain processing refers to the business activities of converting raw grain into semi-finished grain or finished grain, or converting semi-finished grain into finished grain.
[0003] A Chinese patent discloses a grain cleaning screen, with the authorization announcement number CN216757200U. This patented technology can effectively control the flow of grain by adding a flat plate above the first screen, so that the grain falls onto the second screen at a uniform speed for cleaning, preventing blockage and improving grain cleaning efficiency.
[0004] In view of the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the sieve with a fixed angle cannot adapt to grains of different types and humidity. Different types of grains have different physical properties, such as density, shape and friction coefficient. These properties will affect the fluidity and separation effect of the grain on the sieve surface. Similarly, the humidity of the grain will also affect its fluidity, and thus affect the screening efficiency. Since the angle of the sieve cannot be adjusted, the traditional grain cleaning sieve often finds it difficult to achieve an ideal screening effect when processing grains of different types and humidity. Utility Model Content
[0005] The technical problem to be solved by the utility model is that: the prior art has the disadvantage that the inclination angle of the cleaning screen cannot be adjusted, for which reason we propose a multi-stage screening grain cleaning screen.
[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a multi-stage screening grain cleaning screen comprises a support frame, both sides of the inner wall of the support frame are rotatably connected with a rotating block, the facing surfaces of the rotating block are fixedly connected with a multi-stage screening grain box, the bottom of the support frame is fixedly connected with a bottom plate, both sides of the top of the bottom plate are fixedly connected with a first elliptical block, the facing surfaces of the first elliptical block are fixedly connected with a first rotating rod, the outer wall of the first rotating rod is rotatably connected with an adjusting block, an adjusting groove is provided inside the adjusting block, an extension block is slidably connected inside the adjusting groove, both sides of the bottom of the grain screening box are fixedly connected with a second elliptical block, the facing surfaces of the second elliptical block are fixedly connected with a second rotating rod, the interior of the extension block is rotatably connected to the outer diameter of the second rotating rod, control grooves are provided on both sides of the adjusting block, the control block is slidably connected inside the control groove, a side of the control block close to the extension block is fixedly connected with an insert block, and a side of the extension block close to the control block is provided with a plurality of slots for use with the insert block.
[0007] Preferably, a force storage spring is fixedly connected to a side of the control block close to the control groove, and a side of the force storage spring away from the control block is fixedly connected to the inside of the control groove.
[0008] Preferably, both ends of the control groove are provided with sliding grooves, both ends of the control block are fixedly connected with sliders, and the surface of the slider is slidably connected to the inside of the sliding groove.
[0009] Preferably, the extension block is made of high-strength metal.
[0010] Preferably, a plurality of sieve plates are slidably connected to the inner wall of the grain screening box, spring grooves are provided on both sides of the sieve plates, an insertion block is slidably connected inside the spring grooves, a push rod is fixedly connected to the top of the insertion block, a push block is fixedly connected to the top of the push rod, a return spring is fixedly connected to the side of the insertion block close to the spring groove, and a side of the return spring away from the insertion block is fixedly connected to the inside of the spring groove, and insertion grooves for use with the insertion blocks are provided on both sides of the inner wall of the grain screening box.
[0011] Preferably, the front end and the rear end inside the spring groove are both provided with limiting grooves, the front end and the rear end of the insertion block are both fixedly connected with limiting blocks, and the surface of the limiting block is slidably connected to the inside of the limiting groove.
[0012] Preferably, guide grooves are provided on both sides of the inner wall of the grain screening box, and guide blocks are fixedly connected to both sides of the screening plate, and the surface of the guide block is slidably connected to the inside of the guide groove.
[0013] Technical effects and advantages of the utility model:
[0014] In the utility model, a worker pushes the control block toward the inside of the control slot, and the control block drives the insert block to release the limit between the insert block and the slot, and at the same time the limit of the extension block is also released. When the worker moves the extension block upward before screening and cleaning the grain, the extension block drives the second rotating rod to rotate inside the second elliptical block, and the second elliptical block moves upward at the same time to drive the grain screening box. Through the above arrangement, the worker can flexibly adjust the inclination angle of the extension block.
[0015] In the utility model, the staff pulls the push block to drive the push rod and the insertion block to move, and at the same time the insertion block squeezes the return spring to compress and accumulate force, and drives the insertion block to release the limit between the insertion groove, and the staff pulls the sieve plate outward to disassemble the sieve plate. Through the above-mentioned arrangement, it is convenient for the staff to dismantle and clean the sieve plate and replace sieve plates with different hole sizes. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0017] Figure 2 This is a rear view structural diagram of the support frame of the utility model;
[0018] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model;
[0019] Figure 4 For this utility model Figure 3 A partial enlarged view of the middle A;
[0020] Figure 5 This is a schematic diagram of the transverse cross-sectional structure of the screen plate of the utility model;
[0021] Figure 6 For this utility model Figure 5 A partial enlarged view of point B in the middle;
[0022] Figure 7 For this utility model Figure 1 A partial enlarged view of point C in the middle.
[0023] Legend: 1. Support frame; 2. Rotating block; 3. Grain screening box; 4. Bottom plate; 5. First elliptical block; 6. First rotating rod; 7. Adjusting block; 8. Extension block; 9. Adjusting slot; 10. Second elliptical block; 11. Second rotating rod; 12. Control slot; 13. Control block; 14. Insert block; 15. Slot; 16. Force storage spring; 17. Slide slot; 18. Sliding block; 19. Screen plate; 20. Spring slot; 21. Insert block; 22. Push rod; 23. Push block; 24. Return spring; 25. Limiting slot; 26. Limiting block; 27. Guide slot; 28. Guide block; 29. Insert slot. DETAILED DESCRIPTION
[0024] The present invention will now be further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.
[0025] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the utility model provides a technical solution: a multi-stage screening grain cleaning screen, comprising a support frame 1, both sides of the inner wall of the support frame 1 are rotatably connected with a rotating block 2, the facing surfaces of the rotating block 2 are fixedly connected with a multi-stage screening grain box 3, the bottom of the support frame 1 is fixedly connected with a bottom plate 4, both sides of the top of the bottom plate 4 are fixedly connected with a first elliptical block 5, the facing surfaces of the first elliptical block 5 are fixedly connected with a first rotating rod 6, the outer wall of the first rotating rod 6 is rotatably connected with an adjusting block 7, the interior of the adjusting block 7 is provided with an adjusting groove 9, the interior of the adjusting groove 9 is slidably connected with an extension block 8, both sides of the bottom of the screening grain box 3 are fixedly connected with a second elliptical block 10, the facing surfaces of the second elliptical block 10 are fixedly connected with a second rotating rod 11, the interior of the extension block 8 is rotatable with the outer diameter of the second rotating rod 11 Connection, control grooves 12 are provided on both sides of the adjustment block 7, and a control block 13 is slidably connected inside the control groove 12. An insert block 14 is fixedly connected to the side of the control block 13 close to the extension block 8, and a plurality of slots 15 used in conjunction with the insert block 14 are provided on the side of the extension block 8 close to the control block 13. The staff pushes the control block 13 into the control groove 12, and the control block 13 drives the insert block 14 to release the limit between the insert block 14 and the slot 15. At the same time, the limit of the extension block 8 is also released. When the staff moves the extension block 8 upward before screening and cleaning the grain, the extension block 8 drives the second rotating rod 11 to rotate inside the second elliptical block 10, and the second elliptical block 10 moves upward at the same time to drive the grain screening box 3. Through the above arrangement, the staff can flexibly adjust the inclination angle of the extension block 8.
[0026] Reference Figure 3 and Figure 4 As shown, in this implementation scheme: the side of the control block 13 close to the control groove 12 is fixedly connected with a force storage spring 16, and the side of the force storage spring 16 away from the control block 13 is fixedly connected to the inside of the control groove 12. When the staff moves the control block 13 into the control groove 12, the control block 13 squeezes the force storage spring 16 to compress and store force, and at the same time drives the plug block 14 to release the limit between it and the slot 15. After adjusting the applicable position of the extension block 8, the plug block 14 is aligned with the slot 15, and the control block 13 is released. Under the action of the rebound force of the force storage spring 16, the control block 13 is quickly pushed to move outward, and the control block 13 drives the plug block 14 to be inserted into the slot 15 for fixation.
[0027] Reference Figure 3 and Figure 4 As shown, in the present embodiment: both ends of the control groove 12 are provided with slide grooves 17, both ends of the control block 13 are fixedly connected with sliders 18, the surface of the slider 18 is slidably connected with the inside of the slide groove 17, when the staff moves the grain screening box 3, the grain screening box 3 drives the slider 18 to slide in the slide groove 17, through the above arrangement, the stable movement of the control block 13 can be effectively ensured, and the control block 13 can be prevented from deflecting or shaking during the movement, thereby improving the stability and reliability of the entire equipment.
[0028] Reference Figure 3 and Figure 4 As shown, in this embodiment: the material of the extension block 8 is high-strength metal. By setting the extension block 8 to be made of high-strength metal material, the extension block 8 has higher structural strength and stability, can withstand greater pressure and weight, and ensures the safety and reliability of the equipment. At the same time, the high-strength metal material also has excellent corrosion resistance and wear resistance, and can operate stably for a long time in harsh working environments, thereby extending the service life of the equipment.
[0029] Reference Figure 5 , Figure 6 and Figure 7 As shown, in this embodiment: the inner wall of the grain screening box 3 is slidably connected with a plurality of sieve plates 19, spring grooves 20 are provided on both sides of the sieve plates 19, and an insertion block 21 is slidably connected inside the spring groove 20, and a push rod 22 is fixedly connected to the top of the insertion block 21, and a push block 23 is fixedly connected to the top of the push rod 22, and a return spring 24 is fixedly connected to the side of the insertion block 21 close to the spring groove 20, and the side of the return spring 24 away from the insertion block 21 is fixedly connected to the inside of the spring groove 20, and the grain screening box Both sides of the inner wall are provided with insertion grooves 29 used in conjunction with the insertion block 21. The staff pulls the push block 23 to drive the push rod 22 and the insertion block 21 to move. At the same time, the insertion block 21 squeezes the return spring 24 to compress and store force, and drives the insertion block 21 to release the limit between the insertion groove 29. The staff pulls the sieve plate 19 outward to disassemble the sieve plate 19. Through the above arrangement, it is convenient for the staff to dismantle and clean the sieve plate 19 and replace the sieve plate 19 with different hole sizes.
[0030] Reference Figure 5 and Figure 6 As shown, in the present embodiment: the front end and the rear end inside the spring groove 20 are both provided with limiting grooves 25, the front end and the rear end of the insertion block 21 are both fixedly connected with limiting blocks 26, the surface of the limiting block 26 is slidably connected to the inside of the limiting groove 25, when the staff moves the insertion block 21, the insertion block 21 drives the limiting block 26 to slide inside the limiting groove 25, through the above arrangement, the movement of the insertion block 21 is smoother, the friction and resistance are reduced, and the work efficiency is improved, at the same time, the sliding of the limiting block 26 can also play a guiding role, ensuring that the insertion block 21 moves according to the predetermined trajectory, thereby improving the accuracy of the operation.
[0031] Reference Figure 5As shown, in this embodiment: guide grooves 27 are opened on both sides of the inner wall of the grain screening box 3, guide blocks 28 are fixedly connected on both sides of the sieve plate 19, and the surface of the guide block 28 is slidably connected to the inside of the guide groove 27. When the staff pulls out or inserts the sieve plate 19, the sieve plate 19 drives the guide block 28 to slide inside the guide groove 27. Through the above-mentioned arrangement, the pulling out or insertion of the sieve plate 19 is smoother, avoiding jamming or collision, and improving the user experience of the equipment.
[0032] Working principle: the staff pushes the control block 13 into the control slot 12, and the control block 13 drives the plug block 14 to release the limit between it and the slot 15, and at the same time the limit of the extension block 8 is also released. When the staff moves the extension block 8 upward before screening and cleaning the grain, the extension block 8 drives the second rotating rod 11 to rotate inside the second elliptical block 10, and the second elliptical block 10 moves upward at the same time to drive the grain screening box 3. Through the above arrangement, the staff can flexibly adjust the inclination angle of the extension block 8. When the staff moves the control block 13 into the control slot 12, the control block 13 squeezes the storage spring 16 to compress and store force, and at the same time drives the plug block 14 to release the limit between it and the slot 15. After adjusting the applicable position of the extension block 8, align the insert block 14 with the slot 15, and release the control block 13. Under the action of the rebound force of the storage spring 16, the control block 13 is quickly pushed to move outward, and the control block 13 drives the insert block 14 to be inserted into the slot 15 for fixation. When the staff moves the grain screening box 3, the grain screening box 3 drives the slider 18 to slide inside the slide groove 17. Through the above arrangement, the stable movement of the control block 13 can be effectively ensured, and the control block 13 can be prevented from deflecting or shaking during the movement, thereby improving the stability and reliability of the entire equipment. By setting the extension block 8 as a high-strength metal material, the extension block 8 has a higher structure The strength and stability can withstand greater pressure and weight, ensuring the safety and reliability of the equipment. At the same time, the high-strength metal material also has excellent corrosion resistance and wear resistance, and can operate stably for a long time in harsh working environments, extending the service life of the equipment. The staff pulls the push block 23 to drive the push rod 22 and the insertion block 21 to move. At the same time, the insertion block 21 squeezes the return spring 24 to compress and store force, and drives the insertion block 21 to release the limit between the insertion slot 29. The staff pulls the sieve plate 19 outward to disassemble the sieve plate 19. Through the above arrangement, it is convenient for the staff to dismantle and clean the sieve plate 19 and replace the sieve plates 1 with different hole sizes. 9. When the staff moves the insertion block 21, the insertion block 21 drives the limiting block 26 to slide inside the limiting groove 25. Through the above arrangement, the movement of the insertion block 21 is smoother, friction and resistance are reduced, and work efficiency is improved. At the same time, the sliding of the limiting block 26 can also play a guiding role, ensuring that the insertion block 21 moves according to a predetermined trajectory, thereby improving the accuracy of the operation. When the staff pulls out or inserts the sieve plate 19, the sieve plate 19 drives the guide block 28 to slide inside the guide groove 27. Through the above arrangement, the pulling out or insertion of the sieve plate 19 is smoother, avoiding jamming or collision, and improving the use experience of the equipment.
[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A multi-stage screening grain cleaning screen, comprising a support frame (1), characterized in that: The inner wall of the support frame (1) is rotatably connected to a rotating block (2) on both sides, and the facing surfaces of the rotating block (2) are fixedly connected to a multi-stage screening grain screening box (3). The bottom of the support frame (1) is fixedly connected to a bottom plate (4), and the top of the bottom plate (4) is fixedly connected to a first elliptical block (5) on both sides, and the facing surfaces of the first elliptical block (5) are fixedly connected to a first rotating rod (6), and the outer wall of the first rotating rod (6) is rotatably connected to an adjusting block (7), and an adjusting groove (9) is provided inside the adjusting block (7), and an extension block (8) is slidably connected inside the adjusting groove (9). The grain screening box (3) is fixedly connected to a bottom plate (4), and the first elliptical block (5) is fixedly connected to the first rotating rod (6). ) are fixedly connected to second elliptical blocks (10) on both sides of the bottom, the facing surfaces of the second elliptical blocks (10) are fixedly connected to second rotating rods (11), the interior of the extension block (8) is rotatably connected to the outer diameter of the second rotating rod (11), control grooves (12) are provided on both sides of the adjustment block (7), the interior of the control grooves (12) is slidably connected to control blocks (13), a plug-in block (14) is fixedly connected to the side of the control block (13) close to the extension block (8), and a plurality of slots (15) for use with the plug-in blocks (14) are provided on the side of the extension block (8) close to the control block (13).
2. A multi-stage screening grain cleaning screen according to claim 1, characterized in that: A side of the control block (13) close to the control slot (12) is fixedly connected to a force storage spring (16), and a side of the force storage spring (16) away from the control block (13) is fixedly connected to the inside of the control slot (12).
3. The multi-stage screening grain cleaning screen according to claim 1, characterized in that: Both ends of the control groove (12) are provided with sliding grooves (17), and both ends of the control block (13) are fixedly connected with sliding blocks (18), and the surface of the sliding block (18) is slidably connected to the inside of the sliding groove (17).
4. The multi-stage screening grain cleaning screen according to claim 1, characterized in that: The extension block (8) is made of high-strength metal.
5. The multi-stage screening grain cleaning screen according to claim 1, characterized in that: The inner wall of the grain screening box (3) is slidably connected to a plurality of sieve plates (19), both sides of the sieve plates (19) are provided with spring grooves (20), the interior of the spring grooves (20) is slidably connected to an insertion block (21), the top end of the insertion block (21) is fixedly connected to a push rod (22), the top end of the push rod (22) is fixedly connected to a push block (23), the side of the insertion block (21) close to the spring groove (20) is fixedly connected to a return spring (24), the side of the return spring (24) away from the insertion block (21) is fixedly connected to the inside of the spring groove (20), and both sides of the inner wall of the grain screening box (3) are provided with insertion grooves (29) for use with the insertion block (21).
6. A multi-stage screening grain cleaning screen according to claim 5, characterized in that: The front end and the rear end of the spring groove (20) are both provided with limiting grooves (25), the front end and the rear end of the insertion block (21) are both fixedly connected with limiting blocks (26), and the surface of the limiting block (26) is slidably connected to the inside of the limiting groove (25).
7. The multi-stage screening grain cleaning screen according to claim 5, characterized in that: Guide grooves (27) are provided on both sides of the inner wall of the grain screening box (3), and guide blocks (28) are fixedly connected to both sides of the screening plate (19), and the surface of the guide block (28) is slidably connected to the inside of the guide groove (27).