Multi-stage countercurrent water-saving roller cleaning machine and cleaning method

Abstract

The invention relates to the technical field of wheat cleaning, in particular to a multi-stage countercurrent water-saving roller cleaning machine and a cleaning method.The multi-stage countercurrent water-saving roller cleaning machine comprises a cleaning frame with an upward opening, scale marks are arranged on the inner side wall of the cleaning frame, and a cleaning barrel penetrating in the length direction of the cleaning frame and rotating is arranged in the cleaning frame; a cleaning mechanism matched with the cleaning barrel is arranged in the cleaning frame, and the cleaning frame designed by the invention continuously rotates to form high-frequency shaking on wheat in the cleaning frame. The regular shaking enables the wheat to change positions and rub each other, dust and impurities on the surface layer fall off under water flow scouring and particle collision, and meanwhile, the center rotating shaft drives the stirring frames on the two sides to rotate in the circumferential direction. The spiral blades generate lifting force and transverse pushing force, so that the wheat flows annularly, the accumulated wheat is turned over, internal particles make contact with water, and the situation that local cleaning is not thorough is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wheat cleaning, in particular to a multi-stage countercurrent water-saving drum cleaning machine and a cleaning method. BACKGROUND

[0002] In modern agriculture, as one of the important food crops, the processing of harvested wheat is crucial to ensure product quality. In the existing wheat processing process, the cleaning link occupies an important position, which not only can remove the soil, sundries and other impurities attached to the surface of the wheat, but also can effectively improve the quality and processing effect of the wheat in the subsequent processing process.

[0003] For example, the wheat cleaning equipment for flour processing disclosed in the publication No. CN219785112U includes a cleaning tank, and a cleaning barrel is rotatably arranged in the cleaning tank. The equipment adopts a drum cleaning structure, and the cleaning barrel can sieve sand particles when rolling, and can also make dry leaves, shriveled shells and other impurities float on the water surface, so that the separation effect is good. A baffle is arranged on the left side to block the floating sludge, and the floating sludge can be extracted through the floating cover for convenient cleaning.

[0004] However, the use of the above-mentioned prior art in the cleaning of wheat still has the following problems: During the cleaning operation of the wheat, the floating sludge in the cleaning barrel presents a random floating state, and these light and floating impurities randomly wander in the barrel with the water flow, and it is difficult to form a stable aggregation area. When using the floating cover to extract the floating sludge, since the floating sludge is distributed scatteredly and the position is constantly changing, the floating cover can only capture part of the floating sludge, and a large amount of small or edge area floating sludge will be missed due to not being effectively covered. These residual floating sludge not only adheres to the inner wall, corner and gap of the cleaning barrel, but also will be mixed into the water body again in the subsequent cleaning cycle, forming persistent secondary pollution, which seriously affects the cleanliness of the cleaning environment. In addition, the existing technology only relies on the rotation of the cleaning barrel to realize the shaking cleaning of the wheat in the cleaning link of the wheat. This single movement mode cannot ensure that the wheat in the barrel is uniformly stressed. The wheat accumulated at the bottom or in the middle area is easy to form a close aggregation state, and the outer wheat may be well cleaned by directly contacting the water flow, while the wheat in the accumulation inside cannot be fully contacted with the flowing cleaning water due to the extrusion and blockage of the surrounding particles, resulting in the generation of cleaning blind area. The insufficient contact problem caused by the uneven stress directly causes the uneven cleaning effect of the wheat, and part of the dirt and impurities on the surface of the wheat cannot be completely removed, which finally affects the overall quality and efficiency of the wheat cleaning. SUMMARY

[0005] In order to solve the above technical problems, the present application provides a multi-stage countercurrent water-saving drum cleaning machine and a cleaning method, which adopts the following technical scheme: The first aspect is a multi-stage countercurrent water-saving drum cleaning machine, comprising an open upward cleaning frame, a scale line is arranged on the inner side wall of the cleaning frame, a cleaning barrel is arranged inside the cleaning frame and penetrates along the length direction of the cleaning frame and rotates, and a cleaning mechanism matched with the cleaning barrel is arranged inside the cleaning frame, wherein the cleaning mechanism comprises: a rotating shaft, two rotating shafts are arranged and symmetrically distributed along the width direction of the cleaning frame, are flush with the scale line, and the cleaning barrel is located between the two rotating shafts.

[0006] a rotating blade, a plurality of rotating blades are uniformly arranged along the circumferential surface of the rotating shaft and are installed on the circumferential surface of the rotating shaft.

[0007] a turnover assembly, which is arranged inside the cleaning barrel and is used for multi-stage turnover processing of the wheat.

[0008] Preferably, a plurality of penetrating holes are uniformly arranged on the circumferential surface of the cleaning barrel, an annular rack plate is symmetrically arranged on the circumferential surface of the cleaning barrel along the length direction of the cleaning barrel, two groups of support frames are symmetrically arranged inside the cleaning frame along the width direction of the cleaning frame, the support frames are symmetrically distributed along the length direction of the cleaning frame and are installed on the inner bottom of the cleaning frame, a drive shaft is commonly installed between the support frames in the same group, the drive shaft penetrates the corresponding support frame at any end, and a drive gear meshing with the annular rack plate is installed on the drive shaft.

[0009] Preferably, a cover plate for semi-closing the cleaning barrel is symmetrically arranged on the inner bottom of the cleaning frame along the length direction of the cleaning frame, a support protrusion is symmetrically arranged on the inner side wall of the cleaning frame close to the rotating shaft along the length direction of the cleaning frame, the rotating shaft is rotatably installed on the support protrusion through a bearing, one end of the rotating shaft close to the penetrating end of the drive shaft penetrates the corresponding support protrusion, and the penetrating end of the drive shaft and the penetrating end of the rotating shaft are drivingly connected through a belt transmission mode.

[0010] Preferably, the turnover assembly comprises support racks symmetrically distributed along the length direction of the cleaning barrel, and the support racks are installed on the inner wall of the cleaning barrel, a rotating shaft is rotatably installed between the two support racks through a bearing, and a plurality of stirring frames are uniformly installed on the rotating shaft along the length direction of the rotating shaft.

[0011] Preferably, the stirring frame is composed of a fixed ring and a stirring rod, wherein the fixed ring is installed on the rotating shaft, the stirring rod is provided with a plurality of stirring rods and is uniformly distributed along the circumference of the rotating shaft, the stirring rods corresponding to the same fixed ring are installed on the corresponding fixed ring and form a fan-shaped structure.

[0012] Preferably, a connecting block is limitingly and slidably arranged on the inner side wall of the cleaning frame, the rotating shaft is rotatably installed on the connecting block through a bearing, and a through groove is arranged on the cleaning frame for accommodating the penetrating section of the rotating shaft.

[0013] Preferably, a plurality of linkage shafts are uniformly installed in the cleaning frame and at the bottom of the cleaning barrel along the width direction of the cleaning frame, and the two ends of the linkage shaft are rotatably installed on the corresponding cover plate through bearings, and a plurality of rotating blades are uniformly installed on the linkage shaft along the length direction thereof.

[0014] Preferably, the two ends of the linkage shaft penetrate the corresponding cover plate, and the linkage shaft is drivingly connected between the penetration ends through a gear transmission mode, and any driving shaft and the adjacent linkage shaft are drivingly connected through a belt transmission mode.

[0015] Preferably, the height of the scale line is higher than the height of the rotating shaft.

[0016] In the second aspect, a multi-stage countercurrent water-saving drum cleaning method comprises the following steps: S1: material handling, pouring wheat into the inside of the cleaning barrel through the two sides of the cleaning barrel, and pouring water into the inside of the cleaning frame to make the water level flat with the scale line.

[0017] S2: cleaning treatment, the wheat can be cleaned during the rotation of the cleaning barrel.

[0018] S3: turning treatment, the wheat can be turned over by the stirring frame during the rotation of the cleaning barrel.

[0019] S4: impurity concentration, the floating impurities in the inside of the cleaning barrel can be concentrated by the rotating blade.

[0020] In summary, the present application has at least one of the following beneficial technical effects: 1. The cleaning frame of the present application rotates continuously, which causes high-frequency shaking of the inside wheat. This regular shaking makes the wheat change position and rub against each other, and the surface dust and impurities fall off under the water flow scouring and particle collision. At the same time, the central rotating shaft drives the two stirring frames to rotate circumferentially. The helical blade generates lifting force and transverse thrust, which makes the wheat form a circular flow, turns over the accumulated wheat, and makes the internal particles contact with water, avoiding incomplete cleaning in local areas. After a period of circumferential cleaning, the rotating shaft drives the stirring frame to swing back and forth. The left and right turning of the stirring frame forms a reverse impact force, which peels off the possibly re-attached impurities, and also makes the heavy impurities such as sand and gravel inertially separate and deposit at the bottom, while the wheat is suspended and cleaned, realizing the classification treatment and achieving the deep cleaning effect.

[0021] 2. The rotating shaft and the rotating blade of the present application cooperate with each other to make the impurities on the wall of the cleaning barrel move to the water surface, and the water flow continues to move to drive the impurities on the water surface to concentrate in the middle of the cleaning barrel, thereby avoiding the possibility that the impurities are dispersed everywhere in the cleaning barrel and are difficult to collect. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1It is a schematic diagram of the three-dimensional structure of the present application.

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the internal structure of the present application.

[0024] Figure 3 It is a schematic diagram of the three-dimensional installation structure between the cleaning barrel, rotating shaft and rotating blade of the present application.

[0025] Figure 4 It is a schematic diagram of the three-dimensional installation structure between the annular rack plate, support frame and drive shaft of the present application.

[0026] Figure 5 It is a schematic diagram of the three-dimensional installation structure between the support frame, rotating shaft and stirring frame of the present application.

[0027] Figure 6 It is a schematic diagram of the three-dimensional installation structure between the rotating shaft, fixed ring and stirring rod of the present application.

[0028] Figure 7 It is a schematic diagram of the three-dimensional installation structure between the linkage shaft and rotating blade of the present application.

[0029] Figure 8 It is a flow chart of the multi-stage countercurrent water-saving drum cleaning method of the present application.

[0030] Mark explanation: 1, cleaning frame; 11, cover plate; 12, connecting block; 13, linkage shaft; 14, rotating blade; 2, scale line; 3, cleaning barrel; 31, through hole; 32, annular rack plate; 33, support frame; 34, drive shaft; 35, drive gear; 4, cleaning mechanism; 41, rotating shaft; 42, rotating blade; 43, turnover assembly; 431, support frame; 432, rotating shaft; 433, stirring frame; 434, fixed ring; 435, stirring rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings Figures 1 to 8 The application is further described in detail.

[0032] The embodiment of the application discloses a multi-stage countercurrent water-saving drum cleaning machine and cleaning method, which classifies and cleans the wheat, reduces the possibility of secondary pollution of the wheat, and guarantees the cleaning effect of the wheat.

[0033] Embodiment one: Referring to Figure 1 A multi-stage countercurrent water-saving drum cleaning machine, comprising an opening-upward cleaning frame 1, a scale line 2 is arranged on the inner side wall of the cleaning frame 1, a cleaning barrel 3 is arranged in the cleaning frame 1 and penetrates along the length direction and rotates, and a cleaning mechanism 4 is arranged in the cleaning frame 1 and cooperates with the cleaning barrel 3.

[0034] The water outlet is sealed by a sealing plug during the cleaning of the wheat. During the operation, the wheat is poured into the cleaning barrel 3 through the two sides, and then water is poured into the cleaning frame 1 to make the water level flat with the scale line 2.

[0035] With reference to Figures 2 to 4 A plurality of through holes 31 are uniformly arranged on the circumferential surface of the cleaning barrel 3. An annular rack plate 32 is symmetrically arranged on the circumferential surface of the cleaning barrel 3 along the length direction. Two groups of support frames 33 are symmetrically arranged in the cleaning frame 1 along the width direction, and the support frames 33 are symmetrically distributed along the length direction of the cleaning frame 1 and are arranged on the inner bottom of the cleaning frame 1. A drive shaft 34 is arranged between the support frames 33 of the same group. The drive shaft 34 is arranged on the drive gear 35 which is engaged with the annular rack plate 32.

[0036] A drive motor (not shown in the figure) is arranged in the cleaning frame 1 and cooperates with the drive shaft 34. The surface of the drive motor is coated with a waterproof layer, and the output shaft of the drive motor is fixedly connected with the drive shaft 34. During the operation, the drive motor is started, and the output shaft of the drive motor drives the rotation of any drive shaft 34. The corresponding drive shaft 34 is synchronously rotated through the drive gear 35. The drive gear 35 is engaged with the annular rack plate 32 to drive the rotation of the cleaning barrel 3. The other drive shaft 34 is cooperated with the annular rack plate 32 through the drive gear 35 to assist the rotation of the cleaning barrel 3. The cleaning barrel 3 is rotated to form a high-frequency shaking effect on the wheat in the cleaning barrel 3. The wheat is continuously changed in position and rubbed with each other in the cleaning barrel 3 through the regular rotation of the cleaning barrel 3. The dust and impurities attached to the surface are gradually removed under the double actions of water flow and particle collision.

[0037] With reference to Figure 3 The cleaning mechanism 4 comprises: A rotating shaft 41 is arranged symmetrically along the width direction of the cleaning frame 1, and the scale line 2 is flat with the rotating shaft 41, and the cleaning barrel 3 is located between the two rotating shafts 41.

[0038] A rotating blade 42 is arranged on the circumferential surface of the rotating shaft 41.

[0039] A turning assembly 43 is arranged in the cleaning barrel 3 for multi-stage turning of the wheat.

[0040] With reference to Figure 1 and Figure 4, the bottom of the cleaning frame 1 is symmetrically provided with a half-enclosed cover plate 11 along the length direction of the cleaning frame 1 for cleaning the semi-enclosed cleaning barrel 3, the inner side wall of the cleaning frame 1 close to the rotating shaft 41 is symmetrically provided with a support protrusion along the length direction of the cleaning frame 1, and the rotating shaft 41 is rotatably installed on the support protrusion through a bearing, and the end of the rotating shaft 41 close to the penetrating end of the driving shaft 34 penetrates the corresponding support protrusion, and the penetrating end of the driving shaft 34 and the penetrating end of the rotating shaft 41 are drivingly connected through a belt transmission mode.

[0041] Where the water surface is level with the scale line 2 and the rotating shaft 41, and the blade edge perfectly fits the water surface, neither the partial power being offset by the water buoyancy due to the water level being too high, nor the blade idling phenomenon due to the water level being too low, the cover plate 11 can ensure that the wheat does not overflow from the cleaning barrel 3. In specific work, the rotating shaft 41 is rotated on the support protrusion by the belt transmission mode during the rotation of the driving shaft 34, the rotating shaft 41 drives the rotating blade 42 to rotate during the rotation, and the rotating blade 42 can stir the water flow during the rotation. Under the continuous pushing of uniform external force, the water surface will form a stable annular water flow. This water flow slowly moves along a specific trajectory into the cleaning frame 1, and as the water flow converges, various impurities floating on the water surface, such as fine debris and scum, will be wrapped and carried by the directional water flow, gradually gathering in the central area of the cleaning frame 1. Ultimately, these dispersed impurities are concentrated under the action of the water flow, creating extremely convenient conditions for subsequent efficient cleaning and processing, greatly improving the efficiency and thoroughness of the overall cleaning operation.

[0042] Referring to Figures 5 to 6 , the turning assembly 43 includes support frames 431 symmetrically distributed along the length direction of the cleaning barrel 3, and the support frames 431 are installed on the inner wall of the cleaning barrel 3. The two support frames 431 are rotatably installed through a bearing penetrating the rotating shaft 432, and the rotating shaft 432 is uniformly provided with a plurality of stirring frames 433 along the length direction thereof.

[0043] The stirring frame 433 is composed of a fixed ring 434 and a stirring rod 435, wherein the fixed ring 434 is installed on the rotating shaft 432, and the stirring rod 435 is provided in plurality and uniformly distributed circumferentially along the rotating shaft 432. The stirring rod 435 corresponding to the same fixed ring 434 is installed on the corresponding fixed ring 434 and forms a fan-shaped structure.

[0044] Looking back Figure 1 , the inner side wall of the cleaning frame 1 is limitingly and slidably provided with a connecting block 12, and the rotating shaft 432 is rotatably installed on the connecting block 12 through a bearing penetrating the connecting block 12, and the cleaning frame 1 is provided with a through slot for accommodating the penetrating section of the rotating shaft 432.

[0045] In specific operation, the existing motor installed on the connection drives the rotating shaft 432 to rotate through belt transmission during the rotation of the cleaning barrel 3 (it should be noted that the existing motor and belt transmission are common knowledge and are not shown in the figure), the rotating shaft 432 rotates in the opposite direction to the cleaning barrel 3, and the rotating shaft 432 drives the stirring rod 435 to rotate circumferentially during the rotation, and the stirring frame 433 can turn the wheat at the bottom of the cleaning barrel 3 upward and move the wheat out of the water surface during the circumferential rotation. When the wheat reaches a certain height, it will fall off, and the falling wheat will impact the water surface, and the impurities on the surface of the wheat can be removed and fall into the water. The falling wheat re-enters the water, and the above-mentioned operation is repeated to clean the wheat.

[0046] The originally accumulated wheat is gradually turned up layer by layer, and the particles floating on the upper layer are pushed to the edge, and the wheat in the entire chamber forms a circular flow track. This circumferential turning breaks the static accumulation state of the wheat, exposes the particles originally wrapped inside to the water flow, greatly improves the contact area and contact time of each grain of wheat with the cleaning water, and fundamentally avoids the problem of incomplete local cleaning.

[0047] In order to avoid the re-mixing of the falling wheat and the impurities on the water surface, after a period of time, the rotating shaft 432 changes from rotation to oscillation, and the rotating shaft 432 drives the wheat to move back and forth at the bottom of the cleaning barrel 3 through the cooperation of the fixed ring 434 and the stirring rod 435. At this time, the stirring frame 433 no longer rotates along the fixed circle, but performs rapid left-right turning motion within a certain angle range. This oscillation also forms a reverse impact force on the wheat, which completely removes the impurities that may re-attach to the surface of the wheat along the circumferential flow.

[0048] In addition, the back-and-forth motion can separate the impurities with a higher density (such as sand) from the wheat under the action of inertia and deposit them at the bottom of the cleaning frame 1, while the wheat remains in a suspended cleaning state during the oscillation. The lighter impurities inside the wheat float on the water surface, and the heavier impurities inside the wheat fall through the perforated holes 31 to the bottom of the cleaning frame 1.

[0049] Further, the multi-stage processing of impurities and wheat is realized by using the gravity of the wheat and the impact cleaning of the water surface, as well as the cooperation of the wheat oscillation cleaning, to achieve the effect of deep cleaning.

[0050] After a period of cleaning, the existing motor is turned off, and the rotating shaft 432 no longer rotates. At this time, the rotating shaft 41 and the rotating blade 42 can cooperate to make the impurities on the wall of the cleaning barrel 3 separate and move to the water surface. The water flow continues to move to concentrate the impurities on the water surface in the middle of the cleaning barrel 3, thereby avoiding the possibility that the impurities are dispersed everywhere in the cleaning barrel 3 and are difficult to collect. The impurities collected in the middle of the cleaning barrel 3 can be collected and processed by manual operation.

[0051] The water-surface floating impurities can be collected and treated by using the close-to-water surface scraper.

[0052] It should be noted that the scale line 2 is higher than the height of the rotating shaft 432, thereby ensuring that the water-surface impurities are not collided with the rotating shaft 432 during collection, and the stirring frame 433 is located below the water surface during collection of the water-surface impurities.

[0053] When the water-surface impurities collection is completed, the existing hoist (not shown in the figure) lifts the cleaning barrel 3 through the cooperation of the support frame 33 and the penetrating end of the rotating shaft 432, and finally pours out the wheat from the cleaning barrel 3, completing the cleaning of the wheat.

[0054] Embodiment two: refer to Figure 7 On the basis of embodiment one, a plurality of linkage shafts 13 are uniformly installed in the cleaning frame 1 and at the bottom of the cleaning barrel 3 along the width direction of the cleaning frame 1, and the two ends of the linkage shaft 13 are rotatably installed on the corresponding side cover plate 11 through bearings, and a plurality of rotating blades 14 are uniformly installed on the linkage shaft 13 along the length direction thereof.

[0055] The linkage shaft 13 penetrates the corresponding cover plate 11 at any end, and the penetrating ends of the linkage shaft 13 are drivingly connected through a gear transmission mode, and any driving shaft 34 and the adjacent linkage shaft 13 are drivingly connected through a belt transmission mode.

[0056] In specific work, the corresponding driving shaft 34 drives the linkage shaft 13 to rotate through the belt transmission mode in the rotating process, and the linkage shaft 13 drives the remaining linkage shaft 13 to rotate through the gear transmission in the rotating process, and the rotating blades 14 fixed on the linkage shaft 13 rotate synchronously in the rotating process of the linkage shaft 13. The rotating blades 14 rotate and strongly act on the surrounding water body, and form water flow with certain kinetic energy through cutting and stirring the water body. Under the continuous driving force of the rotating blades 14, these water flows form directional impact force, and the penetrating hole 31 becomes a precise channel for the water flow into the cleaning barrel 3. When the impact force of the water flow surges into the cleaning barrel 3 through the penetrating hole 31, it directly acts on the surface of the wheat in the cleaning barrel 3. In the process of contacting with the wheat, the water flow strips off the attached silt and impurities on the surface of the wheat through the impact force, and on the other hand, the continuous flow drives the wheat to tumble in the barrel, so that each grain of wheat can be fully contacted with the water flow. Compared with the traditional static soaking or single-direction flushing, this multi-dimensional cleaning effect can more comprehensively remove the stains on the surface of the wheat, thereby significantly improving the cleaning effect of the wheat.

[0057] Finally, refer to Figure 8 The application also provides a multi-stage countercurrent water-saving drum cleaning method, which comprises the following steps: S1: feeding treatment, the cleaning barrel 3 is poured with wheat from both sides, and water is poured into the cleaning frame 1, so that the water level is leveled with the scale line 2.

[0058] S2: cleaning treatment, the cleaning barrel 3 can be cleaned during rotation.

[0059] S3: turning treatment, the cleaning barrel 3 can be turned circumferentially and slightly shaken during rotation.

[0060] S4: impurity concentration, the rotating shaft 41 and the rotating blade 42 can cooperate to make the impurities on the wall of the cleaning barrel 3 separate and move to the water surface, the water flow continues to move and drive the impurities on the water surface to the middle of the cleaning barrel 3, and the impurities collected in the middle of the cleaning barrel 3 can be collected and treated by manual operation.

[0061] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0062] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A multi-stage counter-current water-saving drum washing machine, comprising a washing frame (1) with its opening facing upwards, wherein scale lines (2) are provided on the inner side wall of the washing frame (1), characterized in that: The cleaning frame (1) is equipped with a cleaning tub (3) that extends through and rotates along its length. The cleaning frame (1) is also equipped with a cleaning mechanism (4) that cooperates with the cleaning tub (3). The cleaning mechanism (4) includes: Two rotating shafts (41) are provided and symmetrically distributed along the width direction of the cleaning frame (1), level with the scale line (2) and the cleaning bucket (3) is located between the two rotating shafts (41); Rotating blades (42) are evenly arranged along the circumference of the rotating shaft (41) and installed on the circumference of the rotating shaft (41); The turning component (43) is installed inside the washing tank (3) for multi-stage turning of wheat.

2. The multi-stage counter-current water-saving drum cleaning machine according to claim 1, characterized in that: Multiple through holes (31) are evenly opened on the circumferential surface of the cleaning bucket (3). A ring rack plate (32) is symmetrically installed on the circumferential surface of the cleaning bucket (3) along its length direction. Two sets of support frames (33) are symmetrically arranged inside the cleaning frame (1) along its width direction. The support frames (33) are symmetrically distributed along the length direction of the cleaning frame (1) and installed at the bottom of the cleaning frame (1). A drive shaft (34) is installed between the support frames (33) in the same set. Any end of the drive shaft (34) passes through the corresponding support frame (33). A drive gear (35) that meshes with the ring rack plate (32) is installed on the drive shaft (34).

3. The multi-stage counter-current water-saving drum cleaning machine according to claim 2, characterized in that: The bottom of the cleaning frame (1) is symmetrically provided with a cover plate (11) for semi-enclosing the cleaning bucket (3) along its length direction. The inner side wall of the cleaning frame (1) near the rotating shaft (41) is symmetrically provided with a support protrusion along the length direction of the cleaning frame (1). The rotating shaft (41) is rotatably mounted on the support protrusion through a bearing. One end of the rotating shaft (41) near the through end of the drive shaft (34) passes through the corresponding support protrusion. The through end of the drive shaft (34) and the through end of the rotating shaft (41) are connected by a belt drive.

4. The multi-stage counter-current water-saving drum cleaning machine according to claim 1, characterized in that: The agitation assembly (43) includes a support frame (431) symmetrically distributed along the length of the cleaning tank (3), and the support frame (431) is installed on the inner wall of the cleaning tank (3). A rotating shaft (432) is rotatably installed between the two support frames (431) through a bearing. Multiple stirring racks (433) are evenly installed on the rotating shaft (432) along its length.

5. A multi-stage counter-current water-saving drum cleaning machine according to claim 4, characterized in that: The stirring rack (433) consists of a fixed ring (434) and stirring rods (435). The fixed ring (434) is mounted on the rotating shaft (432). Multiple stirring rods (435) are provided and evenly distributed along the circumference of the rotating shaft (432). The stirring rods (435) corresponding to the same fixed ring (434) are mounted on the corresponding fixed ring (434) and form a fan-shaped structure.

6. A multi-stage counter-current water-saving drum cleaning machine according to claim 4, characterized in that: A connecting block (12) is slidably provided on the inner side wall of the cleaning frame (1), and the rotating shaft (432) is rotatably mounted on the connecting block (12) through a bearing. A through groove is provided on the cleaning frame (1) to make way for the through section of the rotating shaft (432).

7. A multi-stage counter-current water-saving drum cleaning machine according to claim 3, characterized in that: Multiple linkage shafts (13) are evenly installed in the cleaning frame (1) and at the bottom of the cleaning bucket (3) along the width direction of the cleaning frame (1). Both ends of the linkage shaft (13) are rotatably installed on the cover plate (11) on the corresponding side through bearings. Multiple rotating blades (14) are evenly installed on the linkage shaft (13) along its length direction.

8. A multi-stage counter-current water-saving drum cleaning machine according to claim 7, characterized in that: One end of the linkage shaft (13) passes through the corresponding cover plate (11), and the ends of the linkage shaft (13) are connected by gear transmission. Any drive shaft (34) is connected to its adjacent linkage shaft (13) by belt transmission.

9. A multi-stage counter-current water-saving drum cleaning machine according to claim 4, characterized in that: The height of the scale line (2) is higher than the height of the rotating shaft (432).

10. A multi-stage counter-current water-saving drum cleaning method, comprising a multi-stage counter-current water-saving drum cleaning machine as described in any one of claims 1-9, characterized in that, Its usage includes the following steps: S1: Feeding process: Wheat is poured into the washing bucket (3) from both sides and water is poured into the washing frame (1) so that the water level is level with the scale line (2); S2: Cleaning process, the wheat can be cleaned during the rotation of the cleaning bucket (3); S3: Turning and washing bucket (3) During the rotation process, the stirring rack (433) can turn the wheat. S4: Impurities are concentrated. By rotating the blades (42), the floating impurities inside the cleaning tank (3) can be concentrated and processed.

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