Corn threshing device with impurity removing device

Abstract

The utility model discloses a corn threshing device with an impurity removal device, which comprises a threshing device and an impurity removal device, and further comprises a mounting frame, the threshing device and the impurity removal device are arranged on the mounting frame, and the threshing device is arranged above the impurity removal device; the threshing device comprises a threshing machine frame, a threshing cylinder, a threshing roller, a threshing transmission device and a corn seed tray, the threshing machine frame is fixed to the mounting frame, the two ends of the threshing cylinder are arranged on the two sides of the threshing machine frame respectively, a long-strip-shaped threshing opening is formed in the bottom of the threshing cylinder, and the two ends of the threshing roller are rotatably connected with the threshing machine frame; the threshing roller and the threshing cylinder are arranged in a matched mode and arranged below the long-strip-shaped threshing opening, the corn seed tray is arranged below the threshing roller, and the threshing roller is connected with the threshing transmission device. The corn threshing and impurity removing device is reasonable in structure and convenient to use, corn threshing and impurity removing can be completed at the same time, and high-purity corn kernels are obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of corn threshing, in particular to a corn threshing device with an impurity removing device. Background Art

[0002] Corn threshing is an important part of agricultural production, and its function is to separate corn kernels from corn cobs. However, due to poor process, the existing corn threshing method will cause problems such as long threshing time, unclean threshing, and more threshing impurities. In addition, since the existing thresher is not equipped with a special corn impurity removal device, the corn kernels obtained by the existing thresher are actually a mixture of corn kernels and impurities, and the purity of the kernel output is not high. Utility Model Content

[0003] The utility model aims to optimize the corn threshing process and provide a corn threshing device with an impurity removal device which has a reasonable structure, is easy to use and can simultaneously complete corn threshing and impurity removal.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A corn threshing device with an impurity removal device comprises a threshing device, an impurity removal device, and a mounting frame, wherein the threshing device and the impurity removal device are arranged on the mounting frame, and the threshing device is arranged above the impurity removal device; the threshing device comprises a threshing frame, a threshing drum, a threshing roller, a threshing transmission device, and a corn seed material plate, wherein the threshing frame is fixed on the mounting frame, the two ends of the threshing drum are respectively arranged on both sides of the threshing frame and a long strip threshing opening is arranged at the bottom, the two ends of the threshing roller are rotatably connected to the threshing frame, the threshing roller is arranged in cooperation with the threshing drum and is arranged below the long strip threshing opening, and the The corn seed material plate is arranged below the threshing roller, and the threshing roller is connected to the threshing transmission device; the impurity removal device includes a linear vibration plate and an electromagnetic vibration machine, the linear vibration plate includes a box-shaped shell, a screen layer and an impurity collection box are arranged in the box-shaped shell, the screen layer is arranged below the corn seed material plate, one end of the screen layer is connected to the box-shaped shell, and a drop opening is arranged between the other end and the box-shaped shell, the box-shaped shell is provided with a grain collecting hopper matched with the drop opening, the upper side of the impurity collection box is a box opening and is arranged below the screen layer, and the electromagnetic vibration machine is arranged on the mounting frame and connected to the box-shaped shell.

[0006] The present invention arranges a corn threshing device and an impurity removal device to work together. After the corn threshing is completed, impurities can be removed directly, and finally corn kernels with relatively high purity are obtained. Specifically, the corn is stuffed into the threshing cylinder, and the bottom side of the corn is exposed from the long strip threshing opening. The threshing roller rotates under the drive of the threshing transmission device and thres the corn exposed at the long strip threshing opening. A linear vibrating screen is provided on the lower side of the corn cob threshing, which can separate the impurities mixed in the corn cob by "size sorting" to obtain relatively pure corn kernels. The threshed corn kernels are collected in the corn seed material tray and flow downward through the corn seed kernel tray to the screen layer of the linear vibrating tray. The linear vibrating tray vibrates under the traction of the electromagnetic vibrator, and the corn kernels vibrate together in the area surrounded by the screen layer and the periphery of the box-shaped shell. The corn kernels are larger than the mesh of the screen layer and can only fall into the grain collecting hopper through the drop opening to be collected, while impurities smaller than the mesh of the screen layer fall from the screen layer into the impurity collection box below.

[0007] As a preferred solution of the utility model, one end of the threshing cylinder is an inlet and the other end is an outlet, the inlet diameter is larger than the outlet diameter, the bottom of the threshing cylinder is provided with a long strip threshing opening running through the inlet and the outlet, the edge of the long strip threshing opening is provided with a guide round rod, and a plurality of square notches are provided at the connection between the threshing cylinder and the long strip threshing opening. In the prior art, there is a large gap between the outer diameter of corn and the inner diameter of the threshing barrel. When the corn cobs slide down the inclined surface in the threshing barrel for threshing, they are repeatedly hit by the spiral paddle on the high-speed roller, so that a large noise is generated during the threshing process. The threshing barrel of this scheme adopts a structure in which the front is large and the back is small, with a large inlet and a small outlet. The outlet is slightly larger than the outer diameter of the corn cob and smaller than the outer diameter of the corn cob, so as to achieve the separation of the corn cob and the corn kernels. A guide round rod made of stainless steel is welded to the bottom of the edge of the long strip threshing port so as to prevent the corn cobs from generating a large radial displacement during the sliding threshing process, reduce the number of collisions between the corn cobs and the threshing barrel, and thus reduce the noise during the threshing process. The square notch is to facilitate the kernels that fall off the corn cobs to leak out of the shedding barrel.

[0008] As a preferred solution of the utility model, the threshing drum is tilted, the horizontal height of the inlet end of the threshing drum is higher than the horizontal height of the outlet end of the threshing drum, the inlet and outlet of the threshing drum are respectively provided with dustproof rubber sheets or dustproof baffles, and the inlet of the threshing drum is also provided with an inclined feed hopper. The threshing drum of this solution is tilted, and the inlet is higher than the outlet, so that the corn cobs have a tendency to slide down along the gravity in the shedding drum; the dustproof rubber sheet or dustproof baffle is a door curtain structure, which allows corn cobs to enter and exit, and at the same time, when there are no corn cobs entering and exiting, it can prevent external dust and other debris from entering the inside of the shedding drum.

[0009] As a preferred solution of the utility model, the threshing transmission device includes a three-phase motor, a driving pulley, a V-belt, and a driven pulley. The three-phase motor is connected to the mounting frame, the driving pulley is connected to the output shaft of the three-phase motor, the V-belt connects the driving pulley and the driven pulley, and the driven pulley is connected to the threshing roller. The driving part of this solution is driven by a 1.5KW three-phase motor to drive the threshing roller to rotate through a variable frequency speed regulation method. The rotation speed of the threshing roller is adjustable between 1750 and 2000r / min. On the one hand, the threshing roller can generate a tangential force of 350 to 500N in the circumferential tangential direction to meet the force value required for the analysis of corn kernels and corn cobs; on the other hand, it can cooperate with the sliding speed of the corn ear along the inclined feed hopper, and under the synergistic effect of the tangential force of the threshing cylinder and the sliding speed of the corn, a better threshing effect and higher threshing efficiency can be achieved.

[0010] As a preferred solution of the utility model, the threshing machine frame includes an inlet end plate, an outlet end plate, and an outer cover, the two ends of the threshing cylinder are respectively connected to the inlet end plate and the outlet end plate, and the two ends of the threshing roller are respectively rotatably connected to the inlet end plate and the outlet end plate.

[0011] As a preferred solution of the utility model, the surface of the threshing roller is provided with a soft PVC paddle. The existing threshing roller uses a high-speed single-phase motor to drive the toothed threshing roller through a V-belt transmission. The threshing teeth will generate a large tangential force during operation, and the metal tooth-like protrusions are in direct contact with the corn kernels, so there will be a large mechanical crushing during the threshing process; the threshing roller of this solution is made by "rubber coating technology", and the soft PVC material, 15mm wide and 30mm high PVC threshing paddles are spirally bonded at a 60-degree spiral angle along the length direction of the threshing roller. On the one hand, it ensures that the kernels and the threshing cylinder are in soft contact during the threshing process, reducing the mechanical crushing rate; on the other hand, it increases the contact probability between the threshing paddle and the kernels on the corn cob.

[0012] As a preferred solution of the utility model, the impurity collection box is detachably connected to the box-shaped shell, and the impurity collection box is provided with an end panel connected to one end of the box-shaped shell and a collection box body extending into the box-shaped shell.

[0013] As a preferred solution of the utility model, the electromagnetic vibrator is an electromagnetic horizontal vibrator. The impurity removal device of this solution is controlled by an electromagnetic horizontal vibrator at a frequency of 40-50HZ to periodically operate the linear vibration disk along the horizontal direction with an amplitude of 0.3mm. The linear vibration disk adopts a structure in the form of upper and lower sides, and the upper layer is fixed with a convex screen, the mesh size is 2mm×5mm waist holes, the number is distributed along the 700mm long disk array, the mesh size is smaller than the size of corn kernels, while the convex points drive the kernels forward, the impurities after threshing are filtered into the lower impurity collection box, thereby realizing the separation of impurities and kernels.

[0014] The threshing and impurity removal device of this scheme is divided into two parts, the upper part is used for threshing corn cobs, and the lower part is used for removing impurities and classifying corn kernels. In the upper part, the feed weighing hopper, threshing cylinder and corn kernel plate are installed obliquely, with an angle of 10 to 15 degrees with the horizontal plane, so that corn cobs, corn cobs and corn kernels can slide down along the inner surface of the track under the action of gravity component. When in use, the motor is first started, and then the corn cobs are manually put into the feed hopper. Under the action of gravity component, the corn cobs slide down along the inclined surface of the feed hopper and fall into the threshing cylinder for threshing of the corn cobs. The active pulley under the threshing cylinder is driven to rotate by a three-phase motor, and the annular V-belt then drives the driven pulley to rotate under the action of friction, and the driven pulley drives the threshing roller connected to it to rotate. The threshing roller is bonded with a soft PVC paddle, which periodically impacts the corn cobs that slide down along the threshing cylinder at the same time, so as to separate the corn kernels and corn cobs. The threshed kernels fall into the linear vibration plate through the collecting plate. Corn cobs fall to the outside of the threshing and impurity removal device along the threshing cylinder under the action of gravity. The inlet and outlet of the threshing cylinder are respectively fixed with a feeding dust-proof rubber sheet and a corn cob discharge baffle, which can effectively block the dust during the threshing process.

[0015] Compared with the prior art, the utility model has the following beneficial effects: reasonable structure, easy use, and the ability to simultaneously complete corn threshing and impurity removal to obtain corn kernels with higher purity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model from a front side perspective.

[0017] Figure 2 This is a schematic diagram of the structure of the utility model from a rear side perspective.

[0018] Figure 3 The utility model is a structural schematic diagram of a threshing cylinder.

[0019] In the figure: 1, mounting frame 2, threshing frame 3, threshing cylinder 4, threshing roller

[0020] 5. Corn seed tray 6. Long strip threshing port 7. Electromagnetic vibrator

[0021] 8. Box-shaped shell 9. Screen layer 10. Impurity collection box 11. Dropping port

[0022] 12. Grain collecting hopper 13. Inlet 14. Outlet 15. Guide round rod

[0023] 16. Square notch 17. Dust-proof rubber sheet 18. Dust-proof baffle

[0024] 19. Tilt feed hopper 20. Three-phase motor 21. Driving pulley

[0025] 22, V-belt 23, driven pulley 24, inlet end plate 25, outlet end plate 26, outer cover. DETAILED DESCRIPTION

[0026] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0029] See also Figure 1-Figure 3 , the utility model provides a technical solution:

[0030] A corn threshing device with an impurity removal device, comprising a threshing device, an impurity removal device, and a mounting frame 1, wherein the threshing device and the impurity removal device are arranged on the mounting frame 1, and the threshing device is arranged above the impurity removal device; the threshing device comprises a threshing frame 2, a threshing drum 3, a threshing roller 4, a threshing transmission device, and a corn seed material plate 5, wherein the threshing frame 2 is fixed on the mounting frame 1, the two ends of the threshing drum 3 are respectively arranged on both sides of the threshing frame 2 and a long strip threshing opening 6 is arranged at the bottom, the two ends of the threshing roller 4 are rotatably connected to the threshing frame 2, the threshing roller 4 is matched with the threshing drum 3 and is arranged below the long strip threshing opening 6, and the corn seed material plate 5 is provided with a corn seed material plate 6, and the corn seed material plate 6 ... The material tray 5 is arranged below the threshing roller 4, and the threshing roller 4 is connected to the threshing transmission device; the impurity removal device includes a linear vibration plate and an electromagnetic vibration machine 7, the linear vibration plate includes a box-shaped shell 8, a screen layer 9 and an impurity collection box 10 are arranged in the box-shaped shell 8, the screen layer 9 is arranged below the corn seed material tray 5, one end of the screen layer 9 is connected to the box-shaped shell 8, and a drop opening 11 is arranged between the other end and the box-shaped shell 8, the box-shaped shell 8 is provided with a grain collecting hopper 12 matched with the drop opening 11, the upper side of the impurity collection box 10 is a box opening and is arranged below the screen layer 9, and the electromagnetic vibration machine 7 is arranged on the mounting frame 1 and connected to the box-shaped shell 8.

[0031] One end of the threshing cylinder 3 is an inlet 13 and the other end is an outlet 14. The diameter of the inlet 13 is larger than the diameter of the outlet 14. The bottom of the threshing cylinder 3 is provided with a long strip threshing port 6 that passes through the inlet 13 and the outlet 14. A guide round rod 15 is provided at the edge of the long strip threshing port 6. A plurality of square notches 16 are provided at the connection between the threshing cylinder 3 and the long strip threshing port 6.

[0032] The threshing drum 3 is inclined, and the horizontal height of the inlet end of the threshing drum 3 is higher than the horizontal height of the outlet end of the threshing drum 3. The inlet and outlet of the threshing drum 3 are respectively provided with a dustproof rubber sheet 17 or a dustproof baffle 18. The inlet of the threshing drum 2 is also provided with an inclined feed hopper 19.

[0033] The threshing transmission device includes a three-phase motor 20, a driving pulley 21, a V-belt 22, and a driven pulley 23. The three-phase motor 20 is connected to the mounting frame 1, the driving pulley 21 is connected to the output shaft of the three-phase motor 20, the V-belt 22 connects the driving pulley 21 and the driven pulley 23, and the driven pulley 23 is connected to the threshing roller 4.

[0034] The threshing machine frame 2 includes an inlet end plate 24, an outlet end plate 25, and an outer cover 26. The two ends of the threshing cylinder 3 are respectively connected to the inlet end plate 24 and the outlet end plate 25. The two ends of the threshing roller 4 are respectively rotatably connected to the inlet end plate 24 and the outlet end plate 25. The inlet end plate 24, the outlet end plate 25, and the outer cover 26 cover the threshing cylinder 3 and the threshing roller 4 to prevent dust from entering.

[0035] The surface of the threshing roller 4 is provided with a soft PVC paddle (not shown in the figure), that is, a plurality of soft PVC paddles are arranged at regular intervals on the surface of the threshing roller 4, which causes less damage to corn kernels when hitting corn ears.

[0036] The impurity collection box 10 is detachably connected to the box-shaped shell 8. The impurity collection box 10 is provided with an end panel connected to one end of the box-shaped shell 8 and a collection box body extending into the box-shaped shell 8. When a large amount of impurities are collected, the machine can be stopped, the impurity collection box 10 can be removed and pulled out of the box-shaped shell 8, the impurities can be discarded and then installed back.

[0037] The electromagnetic vibrator 7 is an electromagnetic horizontal vibrator.

[0038] The working process of the utility model is as follows: corn is stuffed into the threshing drum 3 from the inclined feed hopper 19, and the bottom side of the corn is exposed from the long strip threshing port 6. The threshing roller 4 is driven by the threshing transmission device to rotate and thresh the corn exposed at the long strip threshing port 6. The threshed corn kernels are collected in the corn seed material plate 5 and flow downward to the wire vibration plate screen layer 9 through the corn seed plate 5. The wire vibration plate vibrates under the traction of the electromagnetic vibrator. The screen layer 9 can separate the impurities mixed in the corn cob by "size sorting", so as to obtain relatively pure corn kernels. The corn kernels are larger than the mesh size of the screen layer 9 and can only fall into the kernel collection hopper 12 through the drop port 11 to be collected, while the impurities smaller than the mesh size of the screen layer 9 fall from the screen layer 9 into the impurity collection box 10 below.

[0039] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A corn threshing device with an impurity removal device, comprising a threshing device and an impurity removal device, characterized in that: It also includes a mounting frame, the threshing device and the impurity removal device are arranged on the mounting frame, and the threshing device is arranged above the impurity removal device; The threshing device comprises a threshing frame, a threshing drum, a threshing roller, a threshing transmission device, and a corn seed material plate. The threshing frame is fixed on a mounting frame. The two ends of the threshing drum are respectively arranged on both sides of the threshing frame and a long strip threshing opening is arranged at the bottom. The two ends of the threshing roller are rotatably connected to the threshing frame. The threshing roller is matched with the threshing drum and arranged below the long strip threshing opening. The corn seed material plate is arranged below the threshing roller, and the threshing roller is connected to the threshing transmission device. The impurity removal device includes a linear vibration disk and an electromagnetic vibration machine. The linear vibration disk includes a box-shaped shell. A screen layer and an impurity collection box are arranged in the box-shaped shell. The screen layer is arranged below the corn seed disk. One end of the screen layer is connected to the box-shaped shell, and a drop opening is arranged between the other end and the box-shaped shell. The box-shaped shell is provided with a grain collecting hopper that cooperates with the drop opening. The upper side of the impurity collection box is a box opening and is arranged below the screen layer. The electromagnetic vibration machine is arranged on a mounting frame and connected to the box-shaped shell.

2. A corn threshing device with an impurity removal device according to claim 1, characterized in that: One end of the threshing cylinder is an inlet and the other end is an outlet. The inlet diameter is larger than the outlet diameter. The bottom of the threshing cylinder is provided with a long strip threshing opening that passes through the inlet and the outlet. The edge of the long strip threshing opening is provided with a guide round rod. A plurality of square notches are provided at the connection between the threshing cylinder and the long strip threshing opening.

3. A corn threshing device with an impurity removal device according to claim 1 or 2, characterized in that: The threshing drum is tilted, the horizontal height of the inlet end of the threshing drum is higher than the horizontal height of the outlet end of the threshing drum, the inlet and outlet of the threshing drum are respectively provided with dustproof rubber sheets or dustproof baffles, and the inlet of the threshing drum is also provided with an inclined feed hopper.

4. The corn threshing device with impurity removal device according to claim 1, characterized in that: The threshing transmission device comprises a three-phase motor, a driving pulley, a V-belt, and a driven pulley. The three-phase motor is connected to a mounting frame, the driving pulley is connected to an output shaft of the three-phase motor, the V-belt connects the driving pulley and the driven pulley, and the driven pulley is connected to a threshing roller.

5. The corn threshing device with impurity removal device according to claim 1, characterized in that: The threshing machine frame comprises an inlet end plate, an outlet end plate and an outer cover; two ends of the threshing cylinder are respectively connected with the inlet end plate and the outlet end plate; two ends of the threshing roller are respectively rotatably connected with the inlet end plate and the outlet end plate.

6. The corn threshing device with impurity removal device according to claim 1, characterized in that: The surface of the threshing roller is provided with a soft PVC pick.

7. The corn threshing device with impurity removal device according to claim 1, characterized in that: The impurity collection box is detachably connected to the box-shaped shell, and is provided with an end panel connected to one end of the box-shaped shell and a collection box body extending into the box-shaped shell.

8. The corn threshing device with impurity removal device according to claim 1, characterized in that: The electromagnetic vibrator is an electromagnetic horizontal vibrator.

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