A classification and compression device for recycling agricultural and forestry waste resources

Abstract

The utility model discloses a classification and compression device for recycling agricultural and forestry waste resources, including a compression bin, a compression device arranged on the compression bin, the compression device comprising a first hydraulic cylinder, a first hydraulic rod and a compression block, one end of the first hydraulic rod is connected to the first hydraulic cylinder, and the other end is connected to the compression block, a classification device is arranged above the compression bin, and a discharge device is arranged on one side of the compression bin, the discharge device comprises an opening and closing plate, an internal thread sleeve, a clamping groove, an adapting sleeve, a first tension spring, a fixed rod, a fixed sleeve, an external thread sleeve, a threaded plate, a clamping frame, a movable rod and a second tension spring, the opening and closing plate is arranged on one side of the compression bin, the internal thread sleeve is connected to one side of the adapting sleeve, the clamping groove is opened on the outside of the fixed rod, the adapting sleeve is arranged on the outside of the fixed sleeve, the first tension spring sleeve is arranged on the outside of the fixed sleeve, the external thread sleeve is arranged on one side of the threaded plate, the threaded plate is arranged on the outside of the fixed sleeve, the clamping frame is clamped in the clamping groove, one end of the clamping frame is arranged in the movable rod, and the second tension spring sleeve is arranged on the outside of the movable rod.

Description

Technical Field

[0001] The utility model relates to the technical field of classification and compression devices for recycling agricultural and forestry waste resources, and more specifically, to a classification and compression device for recycling agricultural and forestry waste resources. Background Art

[0002] In the existing agricultural and forestry waste resource recycling technology, the common practice is to directly use a compressor to mix and compress all agricultural and forestry waste resources together. However, this practice does not take into account the classification of agricultural and forestry waste resources, resulting in low resource utilization efficiency during the recycling process. Agricultural and forestry waste resources include crop straw, branches, leaves, etc. The physical properties and potential values ​​of these wastes are different. If they are directly compressed without classification, it may affect subsequent resource recovery and reuse.

[0003] In addition, the compression equipment used in the prior art often uses a simple hydraulic press to compress agricultural and forestry waste resources. This type of equipment may encounter a problem during the compression process, that is, the compression bin does not have proper sealing measures. When the agricultural and forestry waste resources are squeezed during the compression process, some of the waste may overflow from the compression bin due to excessive pressure, which will not only cause a waste of resources, but may also pollute the environment, while also increasing the workload of cleaning and maintenance.

[0004] Another problem is that compressed agricultural and forestry waste resources are usually not easy to unload. In existing technologies, multiple cylinders or hydraulic cylinders are often required to promote the unloading process, which not only increases the complexity and cost of the equipment, but also is prone to failure during operation, affecting production efficiency. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the utility model provides a classification and compression device for recycling agricultural and forestry waste resources to solve the technical problems mentioned in the background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a classification and compression device for recycling agricultural and forestry waste resources, including a compression bin, characterized in that: a compression device is arranged on the compression bin, the compression device includes a first hydraulic cylinder, a first hydraulic rod and a compression block, the first hydraulic cylinder is installed outside the compression bin, one end of the first hydraulic rod is connected to the output end of the first hydraulic cylinder, the other end of the first hydraulic rod is connected to the compression block, the compression block can be movably installed in the compression bin, a classification device is arranged above the compression bin, a discharge device is arranged on one side of the compression bin, the discharge device includes an opening and closing plate, an internal threaded sleeve, a clamping groove, an adapter sleeve, a first tension spring, a fixing rod, a fixing A sleeve, an externally threaded sleeve, a threaded plate, a clamping frame, a movable rod and a second tension spring, the opening and closing plate can be movably installed on one side of the compression chamber, the internally threaded sleeve is fixedly connected to one side of the adapting sleeve, the clamping groove is opened on the outside of the fixed rod, the adapting sleeve can be movably sleeved on the outside of the fixed sleeve, the first tension spring can be movably sleeved on the outside of the fixed sleeve, the fixed rod can be removably inserted into the fixed sleeve, the externally threaded sleeve can be movably arranged on one side of the threaded plate, the threaded plate can be removably installed on the outside of the fixed sleeve through threads, the clamping frame is clamped in the clamping groove, the other end of the clamping frame is installed in the movable rod, the movable rod is movably installed on the side wall of the fixed sleeve, and the second tension spring can be movably sleeved on the outside of the movable rod.

[0009] The utility model is further configured that a movable plate is provided above the compression bin, a movable shaft is provided at one side of the movable plate, the movable plate is movably connected to the compression bin via the movable shaft, and the above components realize sealing of the compression bin.

[0010] The utility model is further configured as follows: a second hydraulic cylinder is provided above the compression bin, the second hydraulic cylinder is movably mounted on the top of the compression bin, a second hydraulic rod is provided at the output end of the second hydraulic cylinder, the second hydraulic rod and the movable plate are movably connected, and the configuration of the above components provides a stable power source for the movement of the movable plate.

[0011] The utility model is further configured that one side of the movable plate and the bottom end of the inner part of the compression bin are both provided with slide rails, and both sides of the compression block are provided with slide grooves, and the slide grooves are adapted to the slide rails.

[0012] The utility model is further configured that a push spring is arranged on the outer side of the fixing rod, and the push spring can be movably mounted on the inner side of the fixing sleeve.

[0013] The utility model is further configured such that the classification device includes a protective frame, a classification bin and a classification barrel, the protective frame can be detachably installed on the outside of the compression bin, the classification barrel can be detachably installed on the top of the protective frame, and the classification bin can be detachably installed in the classification barrel, so that the classification device realizes the effective classification of agricultural and forestry waste resources.

[0014] The utility model is further configured that a disassembly plate is provided on one side of the protection frame, and the disassembly plate can be detachably installed on the one side of the protection frame.

[0015] The utility model is further configured as follows: a movable frame is provided in the classification barrel, a motor is provided inside the movable frame, an external gear is provided at the output end of the motor, an internal gear is fixedly provided in the classification barrel, the internal gear and the external gear are meshed, the motor is eccentrically installed, a cover plate is provided under the movable frame, and a material discharge port is provided on the cover plate and the movable frame. The configuration of the above components reduces the manpower input in the classification work.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a classification and compression device for recycling agricultural and forestry waste resources, which has the following beneficial effects:

[0018] 1. The design of the classification device allows for pre-classification of agricultural and forestry waste resources, improving the efficiency and accuracy of resource recovery. Through the coordination of components such as the protective frame, classification bin and classification barrel, different types of agricultural and forestry waste resources can be effectively separated, facilitating subsequent compression and recycling. The setting of the motor and external gear automates the classification and unloading process, reduces the need for manual operation, and improves the efficiency and speed of classification. In addition, the design of the protective frame and disassembly plate allows agricultural and forestry waste resources to fall accurately into the compression bin, providing convenience for subsequent compression processing.

[0019] 2. The compression device realizes effective compression of agricultural and forestry waste resources through the cooperation of the first hydraulic cylinder, the first hydraulic rod and the compression block. This design not only improves the compression efficiency, but also ensures the stability and smoothness of the compression process through the setting of the slide rail and the slide groove. The movable installation of the compression block makes it possible to adjust the compression force and direction as needed to adapt to different types of agricultural and forestry waste resources. In addition, the design of components such as the movable plate plays a stabilizing and sealing role in the compression process, preventing the overflow of agricultural and forestry waste resources during the compression process.

[0020] 3. The unloading device realizes the fast and convenient unloading of compressed agricultural and forestry waste resources through the cooperation of the opening and closing plate, internal threaded sleeve, clamping groove, adapter set, tension spring, fixed rod, fixed sleeve, external threaded sleeve, threaded plate, clamping frame, movable rod and other components. This design simplifies the unloading process, reduces the need for manual operation, and improves the efficiency and speed of unloading. Through the cooperation of the threaded plate and the external threaded sleeve, the opening and closing plate is stably fixed, ensuring the smooth progress of the unloading process. In addition, the setting of the push spring provides additional driving force, making the unloading process smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a schematic diagram of the overall structure of a classification and compression device for recycling agricultural and forestry waste resources in the utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0023] Figure 3 It is a structural schematic diagram of the compression device part in the utility model;

[0024] Figure 4 It is a cross-sectional structural diagram of the classification device part in the utility model;

[0025] Figure 5 for Figure 4 A schematic diagram of the local enlarged structure at B in the middle;

[0026] Figure 6 It is a structural schematic diagram of the fixing rod and the fixing sleeve in the utility model;

[0027] Figure 7 It is a cross-sectional structural diagram of the fixing rod and the fixing sleeve in the utility model;

[0028] Figure 8 for Figure 7 A schematic diagram of the local enlarged structure at C in the middle;

[0029] Fig. 9 It is a structural schematic diagram of the clamping frame and the movable rod part in the utility model.

[0030] In the figure: 1. compression bin; 2. first hydraulic cylinder; 3. first hydraulic rod; 4. compression block; 5. opening and closing plate; 6. internal threaded sleeve; 7. clamping groove; 8. adapter set; 9. first tension spring; 10. fixed rod; 11. fixed sleeve; 12. external threaded sleeve; 13. threaded plate; 14. clamping frame; 15. movable rod; 16. second tension spring; 17. movable plate; 18. movable shaft; 19. second hydraulic cylinder; 20. second hydraulic rod; 21. slide rail; 22. slide groove; 23. push spring; 24. protective frame; 25. classification bin; 26. classification barrel; 27. disassembly plate; 28. movable frame; 29. ​​motor; 30. external gear; 31. internal gear; 32. cover plate; 33. discharge port. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0033] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0034] See also Figure 1-9 A classification and compression device for recycling agricultural and forestry waste resources includes a compression bin 1, which is characterized in that: a compression device is arranged on the compression bin 1, and the compression device includes a first hydraulic cylinder 2, a first hydraulic rod 3 and a compression block 4, the first hydraulic cylinder 2 is installed outside the compression bin 1, one end of the first hydraulic rod 3 is connected to the output end of the first hydraulic cylinder 2, and the other end of the first hydraulic rod 3 is connected to the compression block 4, and the compression block 4 can be movably installed in the compression bin 1, a classification device is arranged above the compression bin 1, and a discharge device is arranged on one side of the compression bin 1, and the discharge device includes an opening and closing plate 5, an internal threaded sleeve 6, a clamping groove 7, an adapter sleeve 8, a first tension spring 9, a fixing rod 10, a fixing sleeve 11, an external threaded sleeve 12, a threaded plate 13, a clamping frame 14, The movable rod 15 and the second tension spring 16, the opening and closing plate 5 can be movably installed on one side of the compression chamber 1, the internal threaded sleeve 6 is fixedly connected to one side of the adapter sleeve 8, the clamping groove 7 is opened on the outside of the fixed rod 10, the adapter sleeve 8 can be movably sleeved on the outside of the fixed sleeve 11, the first tension spring 9 can be movably sleeved on the outside of the fixed sleeve 11, the fixed rod 10 can be removably inserted into the fixed sleeve 11, the external threaded sleeve 12 can be movably arranged on one side of the threaded plate 13, the threaded plate 13 can be detachably installed on the outside of the fixed sleeve 11 through threads, the clamping frame 14 is clamped in the clamping groove 7, the other end of the clamping frame 14 is installed in the movable rod 15, the movable rod 15 can be movably installed on the side wall of the fixed sleeve 11, and the second tension spring 16 can be movably sleeved on the outside of the movable rod 15.

[0035] A movable plate 17 is provided above the compression chamber 1 , and a movable shaft 18 is provided on one side of the movable plate 17 . The movable plate 17 is movably connected to the compression chamber 1 via the movable shaft 18 .

[0036] A second hydraulic cylinder 19 is provided above the compression chamber 1. The second hydraulic cylinder 19 is movably mounted on the top of the compression chamber 1. A second hydraulic rod 20 is provided at the output end of the second hydraulic cylinder 19. The second hydraulic rod 20 and the movable plate 17 are movably connected.

[0037] Slide rails 21 are provided on one side of the movable plate 17 and the bottom of the compression chamber 1 , and slide grooves 22 are provided on both sides of the compression block 4 , and the slide grooves 22 are adapted to the slide rails 21 .

[0038] A push spring 23 is disposed on the outer side of the fixing rod 10 , and the push spring 23 is movably mounted on the inner side of the fixing sleeve 11 .

[0039] In this embodiment, when the device is needed, the classified agricultural and forestry waste resources are first added to the compression bin 1, and then the second hydraulic cylinder 19 is turned on. The second hydraulic cylinder 19 pushes the movable plate 17 to move through the second hydraulic cylinder 19 connected to the output end. Since the second hydraulic cylinder 19 is movably installed on the top of the compression bin 1, and the second hydraulic rod 20 and the movable plate 17 are movably connected, and since the movable plate 17 is movably connected to the compression bin 1 through the movable shaft 18, when the second hydraulic rod 20 pushes the movable plate 17 to move, the movable plate 17 will rotate around the movable shaft 18 as the axis, and then the movable plate 17 will stably cover the compression bin 1, and then the second hydraulic cylinder 19 is closed, and the first hydraulic cylinder 2 is opened. The first hydraulic cylinder 2 pushes the compression block 4 to slide along the slide rail 21 and the slide groove 22 through the first hydraulic rod 3 connected to the output end, thereby cooperating with the opening and closing plate 5 to compress the agricultural and forestry waste resources in the compression bin 1. After compression, the external threaded sleeve 12 is rotated in the corresponding direction, and the suitable The matching set 8 makes the adapter set 8 and the external threaded sleeve 12 not rotate. Since the external threaded sleeve 12 and the internal threaded sleeve 6 are connected by threads, the internal threaded sleeve 6 will gradually be screwed out of the external threaded sleeve 12, and then the first tension spring 9 will pull the adapter set 8 to reset, and then the outer side of the movable rod 15 will lose the limit of the inner side of the adapter set 8, and then the second tension spring 16 will pull the movable rod 15 to reset, and then the movable rod 15 will pull the clamping frame 14 to reset, and then the clamping frame 14 will be separated from the clamping groove 7, and then The push-back spring 23 will push the fixing rod 10 out of the fixing sleeve 11, and then remove the fixing sleeve 11, and then pull the fixing rod 10 out from the other side of the compression chamber 1, and then make the first hydraulic cylinder 2 continue to run, and then the first hydraulic cylinder 2 pushes the compressed agricultural and forestry waste resources out of the compression chamber 1 through the first hydraulic rod 3 and the compression block 4 at the output end. After the agricultural and forestry waste resources are pushed out of the compression chamber 1, refer to the above steps to reuse the fixing rod 10 and the fixing sleeve 11 to fix the opening and closing plate 5.

[0040] See also Figure 1-5 As an implementation method of the classification device: the classification device includes a protective frame 24, a classification bin 25 and a classification barrel 26, the protective frame 24 can be detachably installed on the outside of the compression bin 1, the classification barrel 26 can be detachably installed on the top of the protective frame 24, and the classification bin 25 can be detachably installed in the classification barrel 26.

[0041] A disassembly plate 27 is provided on one side of the protection frame 24 , and the disassembly plate 27 can be detachably installed on the one side of the protection frame 24 .

[0042] A movable frame 28 is provided in the classification barrel 26, a motor 29 is provided inside the movable frame 28, an external gear 30 is provided at the output end of the motor 29, an internal gear 31 is fixedly provided in the classification barrel 26, the internal gear 31 and the external gear 30 are meshed, the motor 29 is eccentrically installed, a cover plate 32 is provided under the movable frame 28, and a discharge port 33 is provided on the cover plate 32 and the movable frame 28.

[0043] More specifically, when the equipment is needed, different agricultural and forestry waste resources are first classified and placed in corresponding classification bins 25 according to the classification. When the agricultural and forestry waste resources in the classification bin 25 need to be classified and compressed, the motor 29 is turned on. The motor 29 drives the external gear 30 connected to the output end to rotate, so that the external gear 30 rotates along the internal gear 31, and at the same time, the motor 29 and the external gear 30 rotate along the axis of the internal gear 31. Then the motor 29 drives the movable frame 28 and the cover plate 32 to rotate, so that the movable frame 28 and the cover plate 32 drive the discharge port 33 to move. When the discharge port 33 coincides with the bottom end of the next classification bin 25, the motor 29 is turned off. The agricultural and forestry waste resources in the classification bin 25 here will fall into the compression bin 1.

[0044] In summary, when the overall equipment is in use or running: when the equipment needs to be used, first add the classified agricultural and forestry waste resources into the compression bin 1, and then turn on the second hydraulic cylinder 19. The second hydraulic cylinder 19 pushes the movable plate 17 to move through the second hydraulic cylinder 19 connected to the output end. Since the second hydraulic cylinder 19 is movably installed on the top of the compression bin 1, and the second hydraulic rod 20 and the movable plate 17 are movably connected, and since the movable plate 17 is movably connected to the compression bin 1 through the movable shaft 18, when the second hydraulic rod 20 pushes the movable plate 17 to move, the movable plate 17 will rotate around the movable shaft 18 as the axis, and then the movable plate 17 will stably cover the compression bin 1, and then close the second hydraulic cylinder 19, open the first hydraulic cylinder 2, and the first hydraulic cylinder 2 pushes the compression block 4 to slide along the slide rail 21 and the slide groove 22 through the first hydraulic rod 3 connected to the output end, thereby cooperating with the opening and closing plate 5 to compress the agricultural and forestry waste resources in the compression bin 1. After compression is completed, the external threaded sleeve 12 is rotated in the corresponding direction, and one Fix the adapter sleeve 8 by hand so that the adapter sleeve 8 and the external thread sleeve 12 will not rotate. Since the external thread sleeve 12 and the internal thread sleeve 6 are connected by threads, the internal thread sleeve 6 will gradually be screwed out of the external thread sleeve 12, and then the first tension spring 9 will pull the adapter sleeve 8 to reset, and then the outer side of the movable rod 15 will lose the limit of the inner side of the adapter sleeve 8, and then the second tension spring 16 will pull the movable rod 15 to reset, and then the movable rod 15 will pull the clamping frame 14 to reset, and then the clamping frame 14 will be separated from the clamping groove 7. , then the push spring 23 will push the fixing rod 10 out of the fixing sleeve 11, and then the fixing sleeve 11 will be removed, and then the fixing rod 10 will be pulled out from the other side of the compression bin 1, and then the first hydraulic cylinder 2 will continue to run, and then the first hydraulic cylinder 2 will push the compressed agricultural and forestry waste resources out of the compression bin 1 through the first hydraulic rod 3 and the compression block 4 at the output end. After the agricultural and forestry waste resources are pushed out of the compression bin 1, refer to the above steps to reuse the fixing rod 10 and the fixing sleeve 11 to fix the opening and closing plate 5.

[0045] When the device is needed, first classify different agricultural and forestry waste resources and place them in corresponding classification bins 25 according to the classification. When the agricultural and forestry waste resources in the classification bin 25 need to be classified and compressed, turn on the motor 29. The motor 29 drives the external gear 30 connected to the output end to rotate, so that the external gear 30 rotates along the internal gear 31. At the same time, the motor 29 and the external gear 30 rotate along the axis of the internal gear 31. Then the motor 29 drives the movable frame 28 and the cover plate 32 to rotate, so that the movable frame 28 and the cover plate 32 drive the discharge port 33 to move. When the discharge port 33 coincides with the bottom end of the next classification bin 25, turn off the motor 29. The agricultural and forestry waste resources in the classification bin 25 here will fall into the compression bin 1.

[0046] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A classification and compression device for recycling agricultural and forestry waste resources, comprising a compression chamber (1), characterized in that: The compression bin (1) is provided with a compression device, the compression device comprising a first hydraulic cylinder (2), a first hydraulic rod (3) and a compression block (4), one end of the first hydraulic rod (3) is connected to the first hydraulic cylinder (2), and the other end is connected to the compression block (4), a classification device is provided above the compression bin (1), and a discharge device is provided on one side of the compression bin (1), the discharge device comprising an opening and closing plate (5), an internal threaded sleeve (6), a clamping groove (7), an adapting sleeve (8), a first tension spring (9), a fixing rod (10), a fixing sleeve (11), an external threaded sleeve (12), a threaded plate (13), a clamping frame (14), a movable rod ( The first tension spring (9) is provided on the outside of the fixing sleeve (11), the second tension spring (15) is provided on the outside of the fixing sleeve (11), the second tension spring (16) is provided on the outside of the fixing sleeve (11), the second tension spring (16) is provided on the outside of the fixing sleeve (11), the first tension spring (9) is provided on the outside of the fixing sleeve (11), the second tension spring (15) is provided on the outside of the fixing sleeve (11), the second tension spring (16) is provided on the outside of the fixing sleeve (11), the second tension spring (16) is provided on the outside of the fixing sleeve (11), the second tension spring (16) is provided on the outside of the fixing sleeve (11), the second tension spring (16) is provided on the outside of the fixing sleeve (11), the second tension spring (15 ...5) is provided on the outside of the fixing sleeve (11), the second tension spring (16) is provided on the outside of the fixing sleeve (11), the second tension spring (15) is provided on the outside of the fixing sleeve (11), the second tension spring (15) is provided on the outside of the fixing sleeve (11), the second tension spring (16) is 2. The classification and compression device for recycling agricultural and forestry waste resources according to claim 1 is characterized by: A movable plate (17) is provided above the compression bin (1), a movable shaft (18) is provided on one side of the movable plate (17), and the movable plate (17) is movably connected to the compression bin (1) via the movable shaft (18).

3. The classification and compression device for recycling agricultural and forestry waste resources according to claim 2 is characterized by: A second hydraulic cylinder (19) is provided above the compression chamber (1). The second hydraulic cylinder (19) is movably mounted on the top of the compression chamber (1). A second hydraulic rod (20) is provided at the output end of the second hydraulic cylinder (19). The second hydraulic rod (20) and the movable plate (17) are movably connected.

4. The classification and compression device for recycling agricultural and forestry waste resources according to claim 3 is characterized by: A slide rail (21) is provided on one side of the movable plate (17) and the bottom of the compression chamber (1), and slide grooves (22) are provided on both sides of the compression block (4), and the slide grooves (22) are adapted to the slide rail (21).

5. The classification and compression device for recycling agricultural and forestry waste resources according to claim 1 is characterized by: A push spring (23) is provided on the outside of the fixing rod (10), and the push spring (23) is movably mounted on the inside of the fixing sleeve (11).

6. A classification and compression device for recycling agricultural and forestry waste resources according to any one of claims 1 to 5, characterized in that: The classification device comprises a protective frame (24), a classification bin (25) and a classification barrel (26); the protective frame (24) is detachably mounted on the outside of the compression bin (1); the classification barrel (26) is detachably mounted on the top of the protective frame (24); and the classification bin (25) is detachably mounted in the classification barrel (26).

7. The classification and compression device for recycling agricultural and forestry waste resources according to claim 6 is characterized by: A disassembly plate (27) is provided on one side of the protection frame (24), and the disassembly plate (27) can be detachably mounted on the one side of the protection frame (24).

8. The classification and compression device for recycling agricultural and forestry waste resources according to claim 7 is characterized by: A movable frame (28) is provided in the classification barrel (26), a motor (29) is provided inside the movable frame (28), an external gear (30) is provided at the output end of the motor (29), an internal gear (31) is fixedly provided in the classification barrel (26), the internal gear (31) and the external gear (30) are meshed, the motor (29) is eccentrically installed, a cover plate (32) is provided below the movable frame (28), and both the cover plate (32) and the movable frame (28) are provided with a material discharge port (33).

Images