Corn thresher

Abstract

The corn thresher comprises a base, a material gathering arc plate and a fixed arc plate are arranged on the base, the feeding end of the material gathering arc plate is connected with a reciprocating electric cylinder, and the discharging end of the material gathering arc plate is rotationally connected with the base; the fixed arc plate is aligned with the discharging end of the material gathering arc plate; a transfer grabbing mechanism is arranged on the fixed arc plate, the transfer grabbing mechanism comprises a conveying chain plate, pricking nails are arranged on the conveying chain plate, and a threshing tooth roller is arranged on one side of the transfer grabbing mechanism. Under the shaking of the reciprocating electric cylinder, the material gathering arc plate enables corn kernels of corn halves to face downwards and corncob halves to face upwards, the corn halves are pricked into the upward corncob halves through the pricking nails on the conveying chain plate to serve as the basis of the corn kernels, then the corn kernels are beaten down through the threshing tooth roller, threshing operation is achieved, the burden of manual operation is relieved, time and labor are saved, and the working efficiency is improved. And the labor intensity and the cost are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, in particular to a corn thresher. Background Art

[0002] A corn thresher is a device used to separate corn kernels from corn cobs. It has a high-speed rotating threshing roller inside. The teeth on the roller hit the corn kernels, causing them to vibrate and break the connection between them and the corn cobs. The threshing is then achieved through the rubbing action of the teeth and the inner wall of the shell.

[0003] However, the existing corn thresher has a better threshing effect on complete corn cobs, but it is more difficult to thresh corn petals that are divided into several petals along the axis of the corn cob under the action of external force; the above-mentioned threshing roller teeth hit the corn kernels to make them vibrate, which can no longer destroy the connection between the corn kernels and the petal-shaped corn core petals, but only make the corn petals split into several pieces horizontally, and can not separate the corn kernels, so threshing cannot be achieved. Manual operation is required, which is time-consuming and labor-intensive, greatly increasing the labor intensity and cost. Utility Model Content

[0004] The utility model is to overcome the shortcomings of the above-mentioned prior art and provide a corn thresher. The utility model uses a reciprocating electric cylinder to shake the arc plate to face the corn kernels downward and the corn cobs upward, and uses the nails on the transmission chain plate to pierce the upward corn cobs as the basis of the corn kernels, and then the corn kernels are knocked down by the threshing tooth roller to realize the threshing operation, thereby reducing the burden of manual operation, saving time and effort, improving work efficiency, and reducing labor intensity and cost.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a corn thresher, comprising a base, on which a gathering arc plate and a fixed arc plate are provided, the feeding end of the gathering arc plate is connected to a reciprocating electric cylinder, and the discharging end of the gathering arc plate is rotatably connected to the base; the fixed arc plate is aligned with the discharging end of the gathering arc plate; a transfer grabbing mechanism is provided on the fixed arc plate, the transfer grabbing mechanism comprises a transmission chain plate, the transmission chain plate is provided with nails, and a threshing tooth roller is provided on one side of the transfer grabbing mechanism.

[0006] Preferably, the material gathering arc plate is in a bucket shape, with a large opening at the feeding end and a small opening at the discharging end.

[0007] Preferably, the transfer and grabbing mechanism also includes a driving roller and a pressing roller arranged on both sides of the conveying chain plate, and the pressing roller is located directly above the fixed arc plate; a plurality of protrusions are circumferentially provided on the pressing roller, and the axis of the pressing roller is parallel to the fixed arc plate.

[0008] Preferably, the protrusion includes a connecting rod and a roller, one end of the connecting rod is connected to the pressing roller, and the other end is rotatably connected to the roller; the roller is pressed on the inner side of the conveying chain plate.

[0009] Preferably, the connecting rod includes a guide rod and a guide sleeve, the guide sleeve is connected to the pressing roller, one end of the guide rod is connected to the roller, and the other end is slidably connected to the guide sleeve, and a baffle is provided on the guide rod; a compression spring is provided on the guide rod and the guide sleeve, one end of the compression spring rests on the pressing roller, and the other end rests on the baffle.

[0010] Preferably, the diameter of the corresponding circle driven by the pressing roller to rotate the protrusion is smaller than the diameter of the corresponding circle of the fixed arc plate.

[0011] Preferably, the conveying chain plate is provided with a shovel plate, and the shovel plate is provided with shovel teeth spaced apart from the nailing.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] (1) Under the shaking of the reciprocating electric cylinder, the gathering arc plate turns the corn kernels of the corn petals downward and the corn cobs upward, and pierces the upward corn cobs through the pins on the conveying chain plate, which serve as the basis of the corn kernels. The corn kernels are then knocked down by the threshing tooth roller to realize the threshing operation, which reduces the burden of manual operation, saves time and effort, improves work efficiency, and reduces labor intensity and cost.

[0014] (2) The gathering arc plate is in the shape of a bucket, with a large feeding end and a small discharging end, which can quickly guide the corn petals and concentrate them inside the arc plate; the corn petals naturally slide to the small discharging end under the action of gravity, thereby achieving an efficient and orderly gathering effect; it can adapt to corn petals of different types and sizes.

[0015] (3) The conveyor chain plate is pushed outward by the protrusion on the pressing roller to ensure that the nails can be accurately inserted into the corn petals, which greatly improves the accuracy and reliability of nailing, and is easy to operate and maintain.

[0016] (4) The roller is pressed against the inner side of the conveyor chain plate to reduce friction and improve the nailing and tightening effect.

[0017] (5) The guide rod and the guide sleeve cooperate with the compression spring to reduce the impact and protect the entire transfer and grabbing mechanism from damage. The connecting rod can be adaptively adjusted to a certain extent according to the size or shape of the corn petals to ensure that the nails can be accurately inserted.

[0018] (6) The diameter of the corresponding circle driven by the pressing roller to rotate the protrusion is smaller than the diameter of the corresponding circle of the fixed arc plate. After the piercing nails are inserted into the corn petals, it is convenient to take away the corn petals from both sides, reducing the risk of being blocked by the fixed arc plate and falling, thereby improving the use effect.

[0019] (7) A shovel plate is provided on the conveying chain plate, and shovel teeth are provided on the shovel plate and are spaced apart from the pins; the corn petals with corn kernels removed from the pins are shoveled off to realize automatic circulation operation and collect the remaining corn petals. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the utility model;

[0021] Figure 2 for Figure 1 A partial schematic diagram of the middle A direction;

[0022] Figure 3 It is a three-dimensional schematic diagram of the material gathering arc plate and the fixed arc plate;

[0023] Figure 4 for Figure 1 Partial schematic diagram in the middle B direction;

[0024] Figure 5 for Figure 4 A partial enlarged view of the pressing roller.

[0025] Description of reference numerals:

[0026] 1- Base;

[0027] 2- material gathering arc plate, 21- material feeding end, 22- material discharging end;

[0028] 3-Fixed arc plate;

[0029] 4-Reciprocating electric cylinder;

[0030] 5-transport and grabbing mechanism, 51-transmission chain plate, 52-pinning nail, 53-driving roller, 54-pressing roller, 55-protrusion, 56-connecting rod, 561-guide rod, 562-guide sleeve, 563-compression spring, 564-baffle, 57-roller;

[0031] 6- threshing tooth roller;

[0032] 7-shovel plate, 71-shovel teeth. DETAILED DESCRIPTION

[0033] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0034] 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.

[0035] Example

[0036] The following is combined with Figure 1-5 A corn thresher in the embodiment is described as follows. Figure 1 , 2 As shown in 4, it includes a base 1 and a material gathering arc plate 2 and a fixed arc plate 3 arranged thereon, the feed end 21 of the material gathering arc plate 2 is connected to the reciprocating electric cylinder 4, and the discharge end 22 of the material gathering arc plate 2 is rotatably connected to the base 1; the fixed arc plate 3 is aligned with the discharge end 22 of the material gathering arc plate 2; a transfer grabbing mechanism 5 is provided on the fixed arc plate 3, and the transfer grabbing mechanism 5 includes a transmission chain plate 51, and the transmission chain plate 51 is provided with nails 52, and a threshing tooth roller 6 is provided on one side of the transfer grabbing mechanism 5.

[0037] The corn petals divided into several petals enter from the feed end 21 of the gathering arc plate 2. Under the shaking of the reciprocating electric cylinder 4, the corn petals slide from the feed end 21 to the discharge end 22. Since the corn kernels on the corn petals are heavy and smooth, the corn kernels will face downward and the corn cob petals will face upward. Slide it onto the fixed arc plate 3, and pierce the upward corn cob petals through the piercing nails 52 on the conveying chain plate 51, and transport the corn petals to the threshing tooth roller 6. The conveying chain plate 51 can also serve as the basis of the corn kernels and as the corn cob core. When the threshing tooth roller 6 strikes, it will not carry the corn cob petals into several pieces, but can strike down the corn kernels, separate them well, and realize the threshing operation. It greatly reduces the burden of manual operation, saves time and effort, improves work efficiency, and reduces labor intensity and cost.

[0038] As shown in Figure 3, the gathering arc plate 2 is in the shape of a bucket, with a large opening at the feeding end 21 and a small opening at the discharging end 22, which can quickly guide the corn petals and gather them inside the arc plate. The corn petals naturally slide to the small discharging end under the action of gravity, thereby achieving an efficient and orderly gathering effect; it can adapt to corn petals of different types and sizes, making the equipment more versatile and adaptable.

[0039] like Figure 4 As shown, the transport and grasping mechanism 5 further includes a driving roller 53 and a pressing roller 54 arranged on both sides of the conveying chain plate 51, and the pressing roller 54 is located just above the fixed arc plate 3; a plurality of protrusions 55 are arranged on the pressing roller 54 in the circumferential direction, and the axis of the pressing roller 54 is parallel to the fixed arc plate 3. The conveying chain plate 51 is pushed outward by the protrusions 55, ensuring that the nailing 52 can be accurately inserted into the corn petal, which greatly improves the accuracy and reliability of nailing, and is easy to operate and maintain.

[0040] like Figure 4 and 5 As shown, the protrusion 55 includes a connecting rod 56 and a roller 57. One end of the connecting rod 56 is connected to the pressing roller 54, and the other end is rotatably connected to the roller 57; the roller 57 is pressed on the inner side of the conveying chain plate 51 to reduce friction and improve the tightening effect of the nail 52.

[0041] like Figure 5 As shown, the connecting rod 56 includes a guide rod 561 and a guide sleeve 562, the guide sleeve 562 is connected to the pressing roller 54, one end of the guide rod 561 is connected to the roller 57, and the other end is slidably connected to the guide sleeve 562, and a baffle 564 is provided on the guide rod 561; a compression spring 563 is sleeved on the guide rod 561 and the guide sleeve 562, and one end of the compression spring 563 is against the pressing roller 54, and the other end is against the baffle 564. Reduce the impact and protect the entire transport and grasping mechanism 5 from damage. When facing corn petals of different sizes or shapes, the connecting rod 56 can be adaptively adjusted to a certain extent to ensure that the nail 52 can be accurately inserted and adapt to different working scenes.

[0042] like Figure 4 As shown, the diameter of the corresponding circle driven by the pressing roller 54 to rotate the protrusion 55 is smaller than the diameter of the corresponding circle of the fixed arc plate 3. After the piercing nails 52 are inserted into the corn petals, it is convenient to take away the corn petals from both sides, reducing the risk of being blocked by the fixed arc plate 3 and falling, thereby improving the use effect.

[0043] like Figure 1 As shown, a shovel plate 7 is provided on the conveying chain plate 51, and a shovel tooth 71 is provided on the shovel plate 7 and is spaced apart from the piercing nails 52. The corn petals with corn kernels removed from the piercing nails 52 are shoveled off, thereby facilitating the next operation of the piercing nails 52, realizing automatic circulation operation and collecting corn petal residues.

[0044] In the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the purpose of describing the present invention rather than requiring the present invention to be constructed or operated in a specific position, and therefore cannot be understood as a limitation on the present invention. The terms "connected" and "connected" in the present invention should be understood in a broad sense, for example, it can be a connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0045] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention without departing from 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 thresher, comprising a base (1), characterized in that: The base (1) is provided with a material gathering arc plate (2) and a fixed arc plate (3); the feeding end (21) of the material gathering arc plate (2) is connected to a reciprocating electric cylinder (4), and the discharging end (22) of the material gathering arc plate (2) is rotatably connected to the base (1); the fixed arc plate (3) is aligned with the discharging end (22) of the material gathering arc plate (2); The fixed arc plate (3) is provided with a transfer grabbing mechanism (5), the transfer grabbing mechanism (5) comprises a conveying chain plate (51), the conveying chain plate (51) is provided with nails (52), and one side of the transfer grabbing mechanism (5) is provided with a threshing tooth roller (6).

2. A corn thresher according to claim 1, characterized in that: The material gathering arc plate (2) is in the shape of a bucket, with a large opening at the material feeding end (21) and a small opening at the material discharging end (22).

3. A corn thresher according to claim 1, characterized in that: The transport and grabbing mechanism (5) further comprises a driving roller (53) and a pressing roller (54) arranged on both sides of the conveying chain plate (51), wherein the pressing roller (54) is located directly above the fixed arc plate (3); The pressing roller (54) is provided with a plurality of protrusions (55) circumferentially, and the axis of the pressing roller (54) is parallel to the fixed arc plate (3).

4. A corn thresher according to claim 3, characterized in that: The protruding portion (55) comprises a connecting rod (56) and a roller (57); one end of the connecting rod (56) is connected to the pressing roller (54), and the other end is rotatably connected to the roller (57); the roller (57) is pressed on the inner side of the conveying chain plate (51).

5. A corn thresher according to claim 4, characterized in that: The connecting rod (56) comprises a guide rod (561) and a guide sleeve (562), wherein the guide sleeve (562) is connected to the pressing roller (54), one end of the guide rod (561) is connected to the roller (57), and the other end is slidably connected to the guide sleeve (562), and a baffle (564) is provided on the guide rod (561); A compression spring (563) is sleeved on the guide rod (561) and the guide sleeve (562); one end of the compression spring (563) abuts against the pressing roller (54), and the other end abuts against the baffle (564).

6. A corn thresher according to claim 3, characterized in that: The diameter of the corresponding circle driven by the pressing roller (54) to rotate the protrusion (55) is smaller than the diameter of the corresponding circle of the fixed arc plate (3).

7. A corn thresher according to claim 1, characterized in that: The conveying chain plate (51) is provided with a shovel plate (7), and the shovel plate (7) is provided with shovel teeth (71) spaced apart from the nails (52).

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