Corn threshing device

Abstract

The utility model provides a corn threshing device, which relates to the technical field of corn threshing devices and comprises a device body and a threshing mechanism, a dredging mechanism is mounted at the bottom of the threshing mechanism, the threshing mechanism comprises a mounting frame, a threshing box is fixedly connected to the surface of the mounting frame, and corn kernel discharge holes are formed in the bottom of the threshing box. According to the device, a third belt wheel is driven by rotation of a first transmission shaft to rotate, similarly, a second connecting belt and a fourth belt wheel are made to rotate under the rotation effect of the third belt wheel, and at the moment, the fourth belt wheel drives a second transmission shaft and a cam to rotate; under the pushing action of a cam, a limiting head and a connecting plate reciprocate up and down, the connecting plate reciprocates up and down to drive a push plate and a dredging rod to move up and down, a corn kernel discharging hole in the bottom of the threshing box is pulled and inserted back and forth through the dredging rod, and the corn kernel discharging hole is prevented from being blocked.

Description

Technical Field

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

[0002] The corn thresher is a device used to separate corn kernels from corn ears. The corn ears are fed into a thresher, and the thresher separates the corn kernels from the corn ears by means of rotation or friction.

[0003] In the prior art, such as Chinese patent publication No. CN219919741U, a "new corn threshing device" is disclosed, which includes a shell, a threshing assembly for threshing corn is connected to the top of the shell, a funnel is connected below the threshing assembly, a solenoid valve for controlling the discharge of corn kernels is connected to the discharge end of the funnel, a screening assembly for corn kernels and powder particles is arranged below the funnel, a first collecting box for collecting powder particles is arranged below the screening assembly, a discharge port for discharging is opened on one side of the shell, and a second collecting box for collecting corn kernels is arranged below the discharge port.

[0004] However, in the prior art, when corn is threshed, corn cob residues will remain at the bottom of some corn kernels, resulting in a larger overall volume. Since the corn kernels with corn cob residues have been separated from the corn cob body, they are easily stuck in the filter holes on the surface of the filter plate, causing the filter holes to be blocked, which is not conducive to the filter plate separating the corn cobs and corn kernels, and affects the threshing operation of the threshing device. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that when corn is threshed, corn cob residues will remain at the bottom of some corn kernels, resulting in a larger overall volume; since the corn kernels with corn cob residues have been separated from the main body of the corn cob, they are easily stuck in the filter holes on the surface of the filter plate, causing the filter holes to be blocked, which is not conducive to the filter plate to separate the corn cobs and corn kernels, and affects the threshing operation of the threshing device, and a corn threshing device is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a corn threshing device, comprising a threshing mechanism, a dredging mechanism is installed at the bottom of the threshing mechanism, the threshing mechanism comprises a mounting frame, a threshing box is fixedly connected to the surface of the mounting frame, and a corn kernel discharge hole is arranged at the bottom of the threshing box;

[0007] The dredging mechanism includes a No. 2 transmission shaft and a slide rail, the No. 2 transmission shaft is rotatably connected to the mounting frame, and one end of the No. 2 transmission shaft is fixedly connected to a No. 4 pulley, a cam is fixedly connected to the surface of the No. 2 transmission shaft, the cam is fixedly connected to the side of the mounting frame, and the inside of the cam is slidably connected to the slide rail, a push plate is fixedly connected to the side of the slide rail, a dredging rod is fixedly connected to the surface of the push plate, a connecting plate is fixedly connected to the side of the dredging rod, a limiting head is fixedly connected to the bottom of the connecting plate, and the cam is fitted with the limiting head.

[0008] Furthermore, a limit rod is fixedly connected inside the slide rail, the limit rod is plugged into the slider, and a spring is arranged on the surface of the limit rod, one end of the spring is fixedly connected to the slide rail, and the other end of the spring is fixedly connected to the slider.

[0009] Furthermore, the threshing mechanism comprises a base, the upper part of the base is fixedly connected to a driving motor, the output end of the driving motor is fixedly connected to a first pulley, and the surface of the first pulley is movably connected to a first connecting belt.

[0010] Furthermore, the surface of the mounting frame is rotatably connected to a No. 1 transmission shaft, the surface of the No. 1 transmission shaft is fixedly connected to a No. 2 pulley, and the surface of the No. 2 pulley is movably connected to the No. 1 connecting belt.

[0011] Furthermore, a threshing roller is arranged inside the threshing box, the No. 1 transmission shaft is fixedly connected to the threshing roller, a feed hopper is fixedly connected to the side of the threshing box, and a corn cob discharge hopper is fixedly connected to the surface of the threshing box.

[0012] Furthermore, the corn cob discharge hopper is located below the feed hopper, and a baffle is inserted at the bottom of the corn cob discharge hopper.

[0013] Furthermore, one end of the No. 1 transmission shaft is fixedly connected to a No. 3 pulley, a No. 2 connecting belt is movably connected to the surface of the No. 3 pulley, and the No. 2 connecting belt is movably connected to the No. 4 pulley.

[0014] Compared with the prior art, the advantages and positive effects of the utility model are:

[0015] 1. In the utility model, the rotation of the No. 1 transmission shaft drives the No. 3 pulley to rotate. Similarly, the rotation of the No. 3 pulley causes the No. 2 connecting belt and the No. 4 pulley to rotate. At this time, the No. 4 pulley drives the No. 2 transmission shaft and the cam to rotate. Under the push of the cam, the limit head and the connecting plate reciprocate up and down. The reciprocating motion of the connecting plate drives the push plate and the dredging rod to move up and down. The dredging rod reciprocates the corn kernel discharge hole at the bottom of the threshing box to avoid the corn kernel discharge hole being blocked.

[0016] 2. In the utility model, when the push plate reciprocates up and down, the slider slides up and down along the slide rail to limit the movement of the push plate. At the same time, the expansion and contraction deformation of the spring drives the slider and the push plate to reset quickly and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a first three-dimensional structural schematic diagram of a corn threshing device proposed by the utility model;

[0018] Figure 2 This is a second three-dimensional structural schematic diagram of a corn threshing device proposed by the utility model;

[0019] Figure 3 The utility model provides a schematic diagram of the structure of a corn kernel discharging hole in a corn threshing device;

[0020] Figure 4 The utility model provides a structural schematic diagram of a slide rail in a corn threshing device.

[0021] Legend: 1. Threshing mechanism; 11. Base; 12. Driving motor; 13. Pulley No. 1; 14. Connecting belt No. 1; 15. Mounting frame; 16. Threshing box; 17. Transmission shaft No. 1; 18. Pulley No. 2; 19. Threshing roller; 110. Feed hopper; 111. Corn cob discharge hopper; 112. Corn kernel discharge hole; 113. Baffle; 2. Dredging mechanism; 21. Pulley No. 3; 22. Connecting belt No. 2; 23. Transmission shaft No. 2; 24. Pulley No. 4; 25. Cam; 26. Slide rail; 27. Sliding block; 28. Push plate; 29. ​​Dredging rod; 210. Connecting plate; 211. Limiting head; 212. Limiting rod; 213. Spring. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1, as Figure 1-Figure 4 As shown, the utility model provides a corn threshing device, including a threshing mechanism 1, a dredging mechanism 2 is installed at the bottom of the threshing mechanism 1, the threshing mechanism 1 includes a mounting frame 15, a threshing box 16 is fixedly connected to the surface of the mounting frame 15, and a corn grain discharge hole 112 is arranged at the bottom of the threshing box 16;

[0025] The dredging mechanism 2 includes a No. 2 transmission shaft 23 and a slide rail 26. The No. 2 transmission shaft 23 is rotatably connected to the mounting frame 15, and one end of the No. 2 transmission shaft 23 is fixedly connected to a No. 4 pulley 24. The surface of the No. 2 transmission shaft 23 is fixedly connected to a cam 25. The cam 25 is fixedly connected to the side of the mounting frame 15, and the inside of the cam 25 is slidably connected to a slide rail 26. A push plate 28 is fixedly connected to the side of the slide rail 26. A dredging rod 29 is fixedly connected to the surface of the push plate 28. A connecting plate 210 is fixedly connected to the side of the dredging rod 29. The bottom of the connecting plate 210 is fixedly connected to the A limit head 211 is connected, the cam 25 is fitted with the limit head 211, a limit rod 212 is fixedly connected inside the slide rail 26, the limit rod 212 is plugged into the slider 27, and a spring 213 is provided on the surface of the limit rod 212, one end of the spring 213 is fixedly connected to the slide rail 26, and the other end of the spring 213 is fixedly connected to the slider 27, one end of the No. 1 transmission shaft 17 is fixedly connected to the No. 3 pulley 21, the surface of the No. 3 pulley 21 is movably connected to the No. 2 connecting belt 22, and the No. 2 connecting belt 22 is movably connected to the No. 4 pulley 24.

[0026] The effect achieved by the entire embodiment 1 is that the No. 3 pulley 21 rotates under the rotation of the No. 1 transmission shaft 17, and similarly, the No. 2 connecting belt 22 and the No. 4 pulley 24 rotate under the rotation of the No. 3 pulley 21. At this time, the No. 4 pulley 24 drives the No. 2 transmission shaft 23 and the cam 25 to rotate, and the limit head 211 and the connecting plate 210 reciprocate up and down under the pushing action of the cam 25. The reciprocating motion of the connecting plate 210 drives the push plate 28 and the dredging rod 29 to move up and down, and the corn grain discharge hole 112 at the bottom of the threshing box 16 is reciprocated by the dredging rod 29 to avoid being blocked.

[0027] When the push plate 28 reciprocates up and down, the slider 27 slides up and down along the slide rail 26 to limit the movement of the push plate 28. At the same time, the spring 213 expands and contracts to drive the slider 27 and the push plate 28 to reset quickly and stably.

[0028] Embodiment 2, as Figure 1 , Figure 2 and Figure 3As shown, the difference between this embodiment and embodiment 1 is that the threshing mechanism 1 includes a base 11, a driving motor 12 is fixedly connected to the upper part of the base 11, a No. 1 pulley 13 is fixedly connected to the output end of the driving motor 12, a No. 1 connecting belt 14 is movably connected to the surface of the No. 1 pulley 13, a No. 1 transmission shaft 17 is rotatably connected to the surface of the No. 1 transmission shaft 17, a No. 2 pulley 18 is fixedly connected to the surface of the No. 1 transmission shaft 17, and the surface of the No. 2 pulley 18 is movably connected to the No. 1 connecting belt 14, a threshing roller 19 is arranged inside the threshing box 16, the No. 1 transmission shaft 17 is fixedly connected to the threshing roller 19, a feed hopper 110 is fixedly connected to the side of the threshing box 16, and a corn cob discharge hopper 111 is fixedly connected to the surface of the threshing box 16, the corn cob discharge hopper 111 is located below the feed hopper 110, and a baffle 113 is inserted at the bottom of the corn cob discharge hopper 111.

[0029] The effect achieved by the entire embodiment 2 is that the corn to be threshed is fed from the feed hopper 110 into the threshing box 16, and the drive motor 12 is turned on to drive the No. 1 pulley 13 and the No. 1 connecting belt 14 to rotate, and the No. 2 pulley 18 and the No. 1 transmission shaft 17 are driven to rotate under the rotation of the No. 1 connecting belt 14. At this time, the No. 1 transmission shaft 17 will drive the threshing roller 19 to rotate inside the threshing box 16 to thresh the corn. After the corn is threshed, the baffle 113 is pulled out from the bottom of the corn cob discharge hopper 111 to discharge the corn cobs.

[0030] Working principle: the corn to be threshed is fed from the feed hopper 110 into the threshing box 16, and the driving motor 12 is turned on to drive the No. 1 pulley 13 and the No. 1 connecting belt 14 to rotate, and the No. 2 pulley 18 and the No. 1 transmission shaft 17 are driven to rotate under the rotation of the No. 1 connecting belt 14, and the No. 1 transmission shaft 17 drives the threshing roller 19 to rotate inside the threshing box 16 to thresh the corn;

[0031] The rotation of the No. 1 transmission shaft 17 drives the No. 3 pulley 21 to rotate. Similarly, the rotation of the No. 3 pulley 21 causes the No. 2 connecting belt 22 and the No. 4 pulley 24 to rotate. At this time, the No. 4 pulley 24 drives the No. 2 transmission shaft 23 and the cam 25 to rotate. Under the pushing action of the cam 25, the limit head 211 and the connecting plate 210 perform up and down reciprocating motion. The up and down reciprocating motion of the connecting plate 210 drives the push plate 28 and the dredging rod 29 to move up and down. The dredging rod 29 performs reciprocating extraction and insertion motion on the corn grain discharge hole 112 at the bottom of the threshing box 16.

[0032] When the push plate 28 reciprocates up and down, the slider 27 slides up and down along the slide rail 26 to limit the movement of the push plate 28. At the same time, the spring 213 expands and contracts to drive the slider 27 and the push plate 28 to reset quickly and stably.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A corn threshing device, comprising a threshing mechanism (1), wherein a dredging mechanism (2) is installed at the bottom of the threshing mechanism (1), characterized in that: The threshing mechanism (1) comprises a mounting frame (15), a threshing box (16) is fixedly connected to the surface of the mounting frame (15), and a corn kernel discharge hole (112) is arranged at the bottom of the threshing box (16); The dredging mechanism (2) comprises a No. 2 transmission shaft (23) and a slide rail (26), wherein the No. 2 transmission shaft (23) is rotatably connected to the mounting frame (15), and one end of the No. 2 transmission shaft (23) is fixedly connected to a No. 4 pulley (24), a cam (25) is fixedly connected to the surface of the No. 2 transmission shaft (23), the cam (25) is fixedly connected to the side of the mounting frame (15), and the cam (25) is slidably connected to the slide rail (26), a push plate (28) is fixedly connected to the side of the slide rail (26), a dredging rod (29) is fixedly connected to the surface of the push plate (28), a connecting plate (210) is fixedly connected to the side of the dredging rod (29), a limiting head (211) is fixedly connected to the bottom of the connecting plate (210), and the cam (25) fits the limiting head (211).

2. A corn threshing device according to claim 1, characterized in that: A limiting rod (212) is fixedly connected inside the slide rail (26), the limiting rod (212) is plugged into the slide block (27), and a spring (213) is provided on the surface of the limiting rod (212), one end of the spring (213) is fixedly connected to the slide rail (26), and the other end of the spring (213) is fixedly connected to the slide block (27).

3. A corn threshing device according to claim 1, characterized in that: The threshing mechanism (1) comprises a base (11), the upper part of the base (11) is fixedly connected to a driving motor (12), the output end of the driving motor (12) is fixedly connected to a first belt pulley (13), and the surface of the first belt pulley (13) is movably connected to a first connecting belt (14).

4. A corn threshing device according to claim 1, characterized in that: The surface of the mounting frame (15) is rotatably connected to a No. 1 transmission shaft (17), the surface of the No. 1 transmission shaft (17) is fixedly connected to a No. 2 belt pulley (18), and the surface of the No. 2 belt pulley (18) is movably connected to a No. 1 connecting belt (14).

5. A corn threshing device according to claim 4, characterized in that: A threshing roller (19) is arranged inside the threshing box (16), the first transmission shaft (17) is fixedly connected to the threshing roller (19), a feed hopper (110) is fixedly connected to the side of the threshing box (16), and a corn cob discharge hopper (111) is fixedly connected to the surface of the threshing box (16).

6. A corn threshing device according to claim 5, characterized in that: The corn cob discharge hopper (111) is located below the feed hopper (110), and a baffle (113) is inserted at the bottom of the corn cob discharge hopper (111).

7. A corn threshing device according to claim 4, characterized in that: One end of the No. 1 transmission shaft (17) is fixedly connected to a No. 3 pulley (21), the surface of the No. 3 pulley (21) is movably connected to a No. 2 connecting belt (22), and the No. 2 connecting belt (22) is movably connected to the No. 4 pulley (24).

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