Auxiliary screening device of indent cleaning machine

Abstract

The auxiliary screening device comprises a cleaning machine body and a feeding bin arranged at a feeding port of the cleaning machine body, a blowing fan and an induced draft fan are rotationally installed on the two opposite inner side walls of the feeding bin correspondingly, and the feeding port of the cleaning machine body is located between the blowing fan and the induced draft fan; a first driving mechanism used for driving the blowing fan to rotate is arranged between the blowing fan and the motor output end of the cleaning machine body, and a second driving mechanism used for driving the air draft fan to rotate is arranged between the air draft fan and the motor output end of the cleaning machine body. Wind power screening is achieved through rotary air blowing of the air blowing fan, heavy air falls down, light air floats forwards, small seeds and short impurities can be effectively screened out in cooperation with rotary air draft of the air draft fan on the opposite side, and the cleaning efficiency is improved while the seed quality and the cleaning efficiency are prevented from being affected. And the situation that too much small seeds and short impurities are accumulated in the cleaning machine, so that friction and abrasion of equipment are increased, and the failure rate of the equipment is increased is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural machinery, in particular to an auxiliary screening device of a furrow eye cleaner. BACKGROUND

[0002] The furrow eye cleaner is a mechanical device used for cleaning and grading seeds, which can effectively remove long and short impurities mixed in good seeds, such as rice seeds, wild peas and wild oats in wheat seeds, etc. Its working principle generally includes the following steps: raw material pretreatment, shell stripping, grading screening and impurity removal. Among them, the raw material pretreatment is mainly to remove impurities and soil in the furrow eye cylinder to be cleaned; the shell stripping is to remove the shell of the furrow eye cylinder by using a stripping device; the grading screening is to divide the furrow eye cylinder into qualified and unqualified products according to the size and quality of the furrow eye cylinder through a grading screening device; finally, the impurity removal is to remove impurities such as broken shells, dust, etc. in the furrow eye cylinder by using a winnowing or water cleaning device.

[0003] The Chinese patent with publication number CN213943911U discloses an auxiliary screening device of a furrow eye cleaner, which includes a stirring assembly arranged at the lower end face of the small grain seed receiving groove. The stirring assembly includes a rotating shaft rotatably connected to the lower end face of the small grain seed receiving groove, and a plurality of stirring pieces arranged on the rotating shaft. The rotating shaft is arranged along the length direction of the small grain seed receiving groove, and the axis of the rotating shaft is arranged in parallel with the axis of the discharge auger in the small grain seed receiving groove. The plurality of stirring pieces are uniformly distributed along the axial direction of the rotating shaft. Each stirring piece includes two mounting plates distributed along the axial direction of the rotating shaft, and a plurality of stirring rods connected between the two mounting plates. The plurality of stirring rods are uniformly distributed along the circumferential direction of the rotating shaft, and there is a gap between the stirring rods and the rotating shaft. The stirring assembly is arranged to further assist the screening of the cleaner, so that the seed screening efficiency is higher.

[0004] The related technology in the above has the following defects: the above auxiliary screening device cannot screen out small seeds and short impurities, which affects the quality of the seeds and reduces the cleaning efficiency. Moreover, if there are too many small seeds and short impurities, they may accumulate in the furrow eye cylinder, increasing the friction and wear of the equipment. This may increase the failure rate of the equipment, reduce the service life, and increase the cost of maintenance and replacement of parts. CONTENT OF THE UTILITY MODEL

[0005] In order to improve the problem that the auxiliary screening device cannot screen out small seeds and short impurities, the present application provides an auxiliary screening device of a furrow eye cleaner.

[0006] The auxiliary screening device of the furrow eye cleaner provided by the present application adopts the following technical solution:

[0007] The utility model provides a kind of nest eye cleaner auxiliary screening device, including cleaner body and the feeding bin being set at the material inlet of the cleaner body, air blower and exhaust fan are rotatably installed on the two opposite inner side walls of the feeding bin respectively, the material inlet of the cleaner body is located between the air blower and the exhaust fan, first drive mechanism for driving the rotation of the air blower is arranged between the air blower and the motor output end of the cleaner body, second drive mechanism for driving the rotation of the exhaust fan is arranged between the exhaust fan and the motor output end of the cleaner body.

[0008] Further, the feeding bin is provided with a screen mesh on the side of the exhaust fan close to the air blower, the screen hole of the screen mesh is larger than the small seed particle size.

[0009] Further, the screen mesh is inclined, the distance between the upper end of the screen mesh and the exhaust fan is less than the distance between the lower end of the screen mesh and the exhaust fan, and a side cover is fixedly connected between the side edge of the screen mesh and the inner wall of the feeding bin.

[0010] Further, the first drive mechanism includes a first fixed support arranged on the cleaner body, a first rotating shaft is rotatably arranged on the first fixed support, the free end of the first rotating shaft is coaxially fixedly connected with the air blower, a first transmission synchronizing wheel is coaxially fixedly connected on the first rotating shaft, a first drive synchronizing wheel is arranged on the motor output end of the cleaner body corresponding to the first transmission synchronizing wheel, and a first synchronous belt is transmissionally connected between the first drive synchronizing wheel and the first transmission synchronizing wheel.

[0011] Further, the second drive mechanism includes a second fixed support arranged on the cleaner body, a second rotating shaft is rotatably arranged on the second fixed support, the free end of the second rotating shaft is coaxially fixedly connected with the exhaust fan, a second transmission synchronizing wheel is coaxially fixedly connected on the second rotating shaft, a second drive synchronizing wheel is arranged on the motor output end of the cleaner body corresponding to the second transmission synchronizing wheel, and a second synchronous belt is arranged between the second drive synchronizing wheel and the second transmission synchronizing wheel.

[0012] Further, a protective cover is arranged outside the second synchronous belt.

[0013] Further, a air outlet for mounting the exhaust fan is provided through the feeding bin, a material guide pipe is connected to the outer wall of the feeding bin at the air outlet, and a collection bag is arranged at the output end of the exhaust fan.

[0014] In summary, the beneficial technical effects of the present application are:

[0015] When the cleaner is running, the output end of the cleaner body motor rotates to drive the air blowing fan and the air suction fan to rotate through the first driving mechanism and the second driving mechanism; when the seeds are fed from the feeding bin, the small seeds and short impurities can be wind screened through the rotation of the air blowing fan to realize air blowing, the heavy ones fall down and the light ones float forward, and the air suction fan on the opposite side rotates to realize air suction, so that the small seeds and short impurities can be effectively screened out, the seed quality and the cleaning efficiency are not affected, and the small seeds and short impurities are not accumulated too much in the cleaner, so as to increase the friction and wear of the equipment, and increase the equipment failure rate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application;

[0017] Figure 2 is a schematic diagram of the cross-sectional structure along the Figure 1 middle line.

[0018] The specific embodiments of the present application will be described below in conjunction with the accompanying drawings, and obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application. DETAILED DESCRIPTION

[0019] The technical solutions of the present application will be described below in conjunction with the accompanying drawings, and obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0020] The embodiment of the present application discloses a nest eye cleaner auxiliary screening device. Referring to Figure 1 and Figure 2 The nest eye cleaner auxiliary screening device comprises a cleaner body 1 and a feeding bin 11 arranged at the feeding port of the cleaner body 1, corresponding ventilation holes are formed in the two opposite side walls of the feeding bin 11, an air blowing fan 3 and an air suction fan 4 are rotatably installed on the two ventilation holes respectively, the feeding port of the cleaner body 1 is located between the air blowing fan 3 and the air suction fan 4, a first driving mechanism for driving the air blowing fan 3 to rotate is arranged between the air blowing fan 3 and the motor output end 2 of the cleaner body 1, and a second driving mechanism for driving the air suction fan 4 to rotate is arranged between the air suction fan 4 and the motor output end 2 of the cleaner body 1.

[0021] When the cleaner is running, the output end of the cleaner body 1 motor rotates to drive the air fan 3 and the exhaust fan 4 to rotate through the first driving mechanism and the second driving mechanism; when the material is fed from the feeding bin 11, the small seeds and short impurities can be screened by the rotating air fan 3 to realize air screening, and the heavy ones fall down and the light ones float forward, which can effectively screen out small seeds and short impurities in cooperation with the rotating exhaust fan 4 on the opposite side to realize air exhaust, thereby avoiding affecting the seed quality and cleaning efficiency, and also avoiding the accumulation of small seeds and short impurities in the cleaner to increase the friction and wear of the equipment, thereby increasing the failure rate of the equipment.

[0022] Further, referring to Figure 2 , the feeding bin 11 is provided with a screen 5 on the side close to the air fan 3, the screen hole of the screen 5 is larger than the particle size of the small seeds and smaller than the standard seed particle size. The screen 5 is inclinedly arranged, the distance between the upper end of the screen 5 and the exhaust fan 4 is smaller than the distance between the lower end of the screen 5 and the exhaust fan 4, and the side cover is fixedly connected between the side edge of the screen 5 and the inner wall of the feeding bin 11.

[0023] In this way, the seeds can be effectively screened out while screening out small seeds and short impurities; at the same time, the inclined arrangement of the screen 5 helps the uniform distribution of the material on the screen 5, avoids the accumulation and blockage of the material, and improves the passing rate of the screen 5; at the same time, the jumping and rolling of the material on the screen 5 are more frequent, which helps to better separate the seeds of different particle sizes in the material and improves the precision and accuracy of screening, so that the screening effect is better and the efficiency is higher.

[0024] Further, referring to Figure 1 and Figure 2 , the first driving mechanism includes a first fixed support 31 arranged on the cleaner body 1, a first rotating shaft 32 is rotatably arranged on the first fixed support 31, the free end of the first rotating shaft 32 is coaxially fixedly connected with the air fan 3, a first transmission synchronous wheel 33 is coaxially fixedly connected on the first rotating shaft 32, a first driving synchronous wheel 21 is arranged on the output end 2 of the cleaner body 1 motor corresponding to the first transmission synchronous wheel 33, and a first synchronous belt 34 is transmissionally connected between the first driving synchronous wheel 21 and the first transmission synchronous wheel 33.

[0025] Further, referring to Figure 1 and Figure 2 , the second driving mechanism includes a second fixed support 41 arranged on the cleaner body 1, a second rotating shaft 42 is rotatably arranged on the second fixed support 41, the free end of the second rotating shaft 42 is coaxially fixedly connected with the exhaust fan 4, a second transmission synchronous wheel 43 is coaxially fixedly connected on the second rotating shaft 42, a second driving synchronous wheel 22 is arranged on the output end 2 of the cleaner body 1 motor corresponding to the second transmission synchronous wheel 43, and a second synchronous belt 44 is arranged between the second driving synchronous wheel 22 and the second transmission synchronous wheel 43.

[0026] In this way, the motor of the cleaner body 1 rotates to drive the first driving synchronous wheel 21 and the second driving synchronous wheel 22 to rotate. When the first driving synchronous wheel 21 rotates, the first synchronous belt 34 is driven to rotate the first synchronous wheel, thereby driving the first rotating shaft 32 to rotate and further driving the air fan 3 to rotate to blow air and realize air screening; when the second driving synchronous wheel 22 rotates, the second synchronous belt 44 is driven to rotate the second synchronous wheel, thereby driving the second rotating shaft 42 to rotate and further driving the air fan 4 to rotate to exhaust air, which cooperates with the air screening of the air fan 3 to effectively realize the screening of small seeds and short impurities.

[0027] Further, referring to Figure 1 and Figure 2 , the second synchronous belt 44 is externally provided with a protective cover 6, which is horizontally arranged along the length direction of the second synchronous belt 44, one end of the protective cover 6 is fixedly connected with the second fixed support 41, and the other end is sleeved with the output end of the motor. The protective cover 6 can effectively isolate the second synchronous belt 44 from direct contact with the workers, and prevent injury accidents caused by misoperation or accidental contact.

[0028] Further, referring to Figure 1 and Figure 2 , the air outlet for installing the air fan 4 is provided on the feeding bin 11, the outer wall of the feeding bin 11 is connected with a material guide pipe at the air outlet, and the output end of the air fan 4 is provided with a collection bag 7. The small seeds and short impurities screened out can be completely collected without manual cleaning, thereby improving the work efficiency.

[0029] The implementation principle of the auxiliary screening device of the embodiment of the present application is as follows:

[0030] When the cleaner is running, the cleaner body 1 motor rotates at the same time to drive the first drive synchronous wheel 21 and the second drive synchronous wheel 22 to rotate. When the first drive synchronous wheel 21 rotates, the first synchronous belt 34 is driven to rotate the first synchronous wheel, thereby driving the first rotating shaft 32 to rotate and in turn driving the air blowing fan 3 to rotate to blow air; when the second drive synchronous wheel 22 rotates, the second synchronous belt 44 is driven to rotate the second synchronous wheel, thereby driving the second rotating shaft 42 to rotate and in turn driving the air suction fan 4 to rotate to suck air. When the seeds and short impurities are fed from the feeding bin 11, the small seeds and short impurities can be wind-screened by the air blowing fan 3 rotating to blow air, and the heavy ones fall down and the light ones float forward; the screen 5 is used to avoid screening out the seeds while screening out the small seeds and short impurities; at the same time, the screen 5 is inclined to avoid the small seeds and short impurities from accumulating too much on the screen 5 to affect the screening effect, so that the small seeds and short impurities are more easily passed through the screen 5, thereby making the screening effect better and the efficiency higher; in combination with the air suction fan 4 on the opposite side rotating to suck air, the small seeds and short impurities can be effectively screened out. In this way, the quality of the seeds and the cleaning efficiency are not affected, and the small seeds and short impurities are also not accumulated too much in the cleaner, thereby increasing the friction and wear of the equipment and increasing the equipment failure rate.

[0031] Unless otherwise defined, technical terms or scientific terms used in the present application shall be understood as having the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms "first", "second", "third" and the like used in the specification and claims of the present application do not denote any order, number or importance, but are used to distinguish different components. The terms "one" or "a" and the like do not denote a quantity limitation, but mean that at least one exists. The terms "include" or "contain" and the like mean that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, and do not exclude other elements or objects. The terms "upper", "lower", "left", "right" and the like are used to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.

[0032] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An auxiliary screening device for a micro-cleaning machine, characterized in that, The machine includes a cleaning machine body (1) and a feeding bin (11) located at the feed inlet of the cleaning machine body (1). A blower fan (3) and an exhaust fan (4) are rotatably mounted on the two opposite inner side walls of the feeding bin (11). The feed inlet of the cleaning machine body (1) is located between the blower fan (3) and the exhaust fan (4). A first drive mechanism for driving the blower fan (3) to rotate is provided between the blower fan (3) and the motor output end (2) of the cleaning machine body (1). A second drive mechanism for driving the exhaust fan (4) to rotate is provided between the exhaust fan (4) and the motor output end (2) of the cleaning machine body (1).

2. The auxiliary screening device for a hole-hole cleaning machine according to claim 1, characterized in that, The feeding bin (11) is provided with a screen (5) on the side of the exhaust fan (4) near the blower fan (3). The screen (5) has a mesh size larger than that of small seeds and smaller than that of standard seeds.

3. The auxiliary screening device for a hole-hole cleaning machine according to claim 2, characterized in that, The screen (5) is inclined, and the distance between the upper end of the screen (5) and the exhaust fan (4) is smaller than the distance between the lower end of the screen (5) and the exhaust fan (4). A side cover is fixed between the side of the screen (5) and the inner wall of the feeding bin (11).

4. The auxiliary screening device for a hole-hole cleaning machine according to claim 1, characterized in that, The first drive mechanism includes a first fixed bracket (31) mounted on the cleaning machine body (1), a first rotating shaft (32) is rotatably mounted on the first fixed bracket (31), the free end of the first rotating shaft (32) is coaxially fixed to the blower fan (3) and a first transmission synchronous pulley (33) is coaxially fixed to the first rotating shaft (32), a first drive synchronous pulley (21) is mounted on the motor output end (2) of the cleaning machine body (1) corresponding to the first transmission synchronous pulley (33), and a first synchronous belt (34) is connected between the first drive synchronous pulley (21) and the first transmission synchronous pulley (33).

5. The auxiliary screening device for a hole-hole cleaning machine according to claim 1, characterized in that, The second drive mechanism includes a second fixed bracket (41) mounted on the cleaning machine body (1), a second rotating shaft (42) is rotatably mounted on the second fixed bracket (41), the free end of the second rotating shaft (42) is coaxially fixed to the exhaust fan (4) and a second transmission synchronous pulley (43) is coaxially fixed to the second rotating shaft (42), a second drive synchronous pulley (22) is mounted on the motor output end (2) of the cleaning machine body (1) corresponding to the second transmission synchronous pulley (43), and a second synchronous belt (44) is mounted between the second drive synchronous pulley (22) and the second transmission synchronous pulley (43).

6. The auxiliary screening device for a hole-hole cleaning machine according to claim 5, characterized in that, A protective cover (6) is provided outside the second synchronous belt (44).

7. The auxiliary screening device for a hole-hole cleaning machine according to claim 6, characterized in that, The feeding bin (11) has an air outlet for the installation of the exhaust fan (4) through it. The outer wall of the feeding bin (11) is connected to the air outlet with a guide pipe. The output end of the exhaust fan (4) is provided with a collection bag (7).

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