CN216392152U

CN216392152U - Corn harvester

Info

Publication number: CN216392152U
Application number: CN202220712980.8U
Authority: CN
Inventors: 曹虎春
Original assignee: Weifang Hanting District Agricultural Technology Extension Center; Shandong Huaquan Power Co ltd
Current assignee: Weifang Hanting District Agricultural Technology Extension Center; Shandong Huaquan Power Co ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-04-29
Anticipated expiration: 2032-03-30

Abstract

The utility model discloses a corn harvester which comprises an ear collecting box, wherein the front part of the ear collecting box is provided with a seedling dividing chain and a stalk pulling roller, and the corn harvester is characterized in that the front part of the lower end of the ear collecting box is connected with a horizontally arranged fixed cutting knife, the front part of the fixed cutting knife is provided with two fixed cutting grooves with forward openings, the left side and the right side of each fixed cutting groove are provided with fixed cutting edges, two movable cutting knives capable of moving left and right are slidably connected above the fixed cutting knife, the front part of each movable cutting knife is provided with a movable cutting groove with a forward opening, the left side and the right side of each movable cutting groove are provided with movable cutting edges, and the width of each movable cutting groove is two to three times of the width of the fixed cutting groove. During the use, the carrier drives ear of grain case and moves forward, and the maize stalk gets into fixed cutting groove through dividing standing grain chain and stem pulling roller in, and the activity cutting knife side-to-side motion cuts up it, because maize stalk lower extreme is located fixed cutting groove, and the part that is cut off receives the blockking of fixed cutting groove, avoids splashing everywhere, improves still field efficiency.

Description

Corn harvester

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to a corn harvester.

Background

The existing corn harvester comprises an ear collecting box, wherein a seedling dividing chain and a stem pulling roller are arranged at the front part of the ear collecting box, a plurality of cutting blades driven by a motor are connected to the front part of the lower end of the ear collecting box, when the corn harvester is used, a carrier drives the ear collecting box to move forwards, corn stalks are sent into a chopping area through the seedling dividing chain and the stem pulling roller, the cutting blades rotate, and the corn stalks are chopped.

The above technical solution has the following disadvantages: the cutting blade rotates at a high speed to cut up corn stalks, the cut-off part can splash around due to the striking of the cutting blade, the returning efficiency is low, meanwhile, the splashed corn stalks easily hurt nearby personnel, carrier tires and the like, and certain safety risk is realized.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a corn harvester aiming at the problems, so that splashing of the chopped corn stalks is reduced, and the returning efficiency is improved.

In order to achieve the purpose, the utility model discloses a corn harvester which comprises an ear collecting box, wherein the front part of the ear collecting box is provided with a seedling dividing chain and a stalk pulling roller, and the corn harvester is characterized in that the front part of the lower end of the ear collecting box is connected with a horizontally arranged fixed cutting knife, the front part of the fixed cutting knife is provided with two fixed cutting grooves with forward openings, the left side and the right side of each fixed cutting groove are provided with fixed cutting edges, two movable cutting knives capable of moving left and right are slidably connected above the fixed cutting knives, the front part of each movable cutting knife is provided with a movable cutting groove with a forward opening, the left side and the right side of each movable cutting groove are provided with movable cutting edges, and the width of each movable cutting groove is two to three times of the width of the fixed cutting groove. During the use, the carrier drives ear of grain case and moves forward, and the maize stalk gets into fixed cutting groove through dividing standing grain chain and stem pulling roller in, and the activity cutting knife side-to-side motion cuts up it, because maize stalk lower extreme is located fixed cutting groove, and the part that is cut off receives the blockking of fixed cutting groove, avoids splashing everywhere, improves still field efficiency. The width of the movable cutting groove is two to three times of that of the fixed cutting groove, so that the corn stalks are ensured to be fully contacted with the movable cutting knife after entering the fixed cutting groove, and the chopping effect is improved.

Preferably, the upper part of the fixed cutter is provided with a guide rail arranged along the left-right direction, the guide rail is connected with a sliding block in a sliding way, and the movable cutter is arranged on the sliding block. When in use, the movable cutting knife moves along the guide rail, and the movement is reliable.

Preferably, the motor is installed on the ear collecting box, the output end of the motor is connected with a first connecting rod, the first connecting rod is hinged with a second connecting rod, the upper portion of the fixed cutting knife is slidably connected with a push-pull rod capable of moving back and forth, the left side and the right side of the front end of the push-pull rod are hinged with swing rods, the front ends of the swing rods are hinged with the sliding block, and the rear ends of the push-pull rods are hinged with the second connecting rod. When the cutting device is used, the motor drives the output end of the motor to rotate, the output end of the motor drives the first connecting rod to rotate, the second connecting rod drives the push-pull rod to move back and forth, when the push-pull rod moves forwards, the swing rod drives the two sliding blocks to be away from each other, when the push-pull rod moves backwards, the swing rod drives the two sliding blocks to be close to each other, the two sliding blocks move synchronously, the cutting effect is improved, meanwhile, the moving directions of the two sliding blocks are opposite, the stress of the fixed cutting knife is balanced, the shaking of the fixed cutting knife is reduced, and the cutting effect is improved.

Preferably, the second connecting rod is hinged with the lower side of the first connecting rod, and the second connecting rod is hinged with the lower side of the push-pull rod. The structure is compact, and the space is fully utilized.

Preferably, the upper part of the fixed cutting knife is provided with a sliding sleeve, and the push-pull rod penetrates through the sliding sleeve and is in sliding fit with the sliding sleeve. When the device is used, the push-pull rod moves along the sliding sleeve, so that the structure is compact, and the device is convenient to manufacture and maintain.

Preferably, the front part of the spike collecting box is connected with an equipment frame, the equipment frame is provided with a motor mounting cavity, the motor is positioned in the motor mounting cavity, and the front part of the motor mounting cavity is provided with a push-pull rod through hole for the push-pull rod to pass through. The structure is compact, and the space is fully utilized.

Preferably, the upper part of the fixed cutter is provided with a shield, and the guide rail, the slide block and the swing rod are positioned on the inner side of the shield. When the protective cover is used, the protective cover protects the structures such as the guide rail, the slide block, the swing rod and the like, and the service life of the protective cover is prolonged.

Preferably, the front part of the ear collecting box is provided with a chain wheel mounting plate extending forwards, the chain wheel mounting plate is provided with a plurality of chain wheels, and the seedling dividing chain is wound on the chain wheels. The installation of the seedling dividing chain is convenient.

Preferably, the fixed cutter is rectangular, and the movable cutter is rectangular. The structure is compact, and the manufacture and the maintenance are convenient.

Preferably, the left side and the right side of the opening of the fixed cutting groove are obliquely arranged. When in use, the corn stalks can conveniently enter the fixed cutting groove.

In conclusion, the beneficial effects of the utility model are as follows: the movable cutting knife moves left and right to cut the corn stalks, and the cut parts are blocked by the fixed cutting grooves due to the fact that the lower ends of the corn stalks are located in the fixed cutting grooves, so that splashing is avoided, and returning efficiency is improved.

Drawings

FIG. 1 is a schematic view of a corn harvester according to the present invention;

FIG. 2 is a schematic side view of a corn harvester of the present invention;

FIG. 3 is a schematic structural view of section A-A of FIG. 2;

FIG. 4 is an enlarged schematic view of a portion B of FIG. 3;

FIG. 5 is a schematic view of section C-C of FIG. 4;

fig. 6 is a schematic view of the structure of section D-D in fig. 5.

In the figure: 1. collecting the ear of grain case; 2. an equipment rack; 3. a sprocket; 4. a sprocket mounting plate; 5. a dividing chain; 6. a stalk-pulling roller; 7. fixing a cutting knife; 8. a movable cutting knife; 9. a shield; 10. a guide rail; 11. fixing a cutting groove; 12. a movable blade; 13. a slider; 14. a swing rod; 15. a push-pull rod; 16. a sliding sleeve; 17. a push-pull rod is provided with a through hole; 18. a second link; 19. a motor mounting cavity; 20. a first link; 21. an output end of the motor; 22. an electric motor; 23. movably cutting a groove; 24. and fixing the blade.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The utility model is further described with reference to the following figures and detailed description:

as shown in fig. 1 to 6, a corn harvester comprises an ear collecting box 1, a seedling dividing chain 5 and a stem pulling roller 6 are installed at the front part of the ear collecting box 1, and the seedling dividing chain 5 and the stem pulling roller 6 are in the prior art and are not described herein again.

The front part of the ear collecting box 1 is provided with a chain wheel mounting plate 4 extending forwards, the chain wheel mounting plate 4 is provided with a plurality of chain wheels 3, and a seedling dividing chain 5 is wound on the chain wheels 3. The installation of the dividing chain 5 is convenient.

The fixed cutting knife 7 that the level set up is connected with in 1 lower extreme front portion of ear of grain case, two fixed kerfs 11 that the opening is forward have been seted up to fixed cutting knife 7 front portion, the left and right sides of fixed kerfs 11 all has fixed cutting edge 24, fixed cutting knife 7 top sliding connection has two movable cutting knives 8 that can the side-to-side motion, activity cutting knife 8 front portion is seted up and is fixed kerve 11 corresponding, and the forward activity kerve 23 of opening, activity kerve 23 left and right sides all has movable cutting edge 12, the width of activity kerve 23 is two to three times of fixed kerve 11 width.

During the use, carrier drive ear of grain case 1 forward motion, and the maize stalk passes through branch standing grain chain 5 and draws the stem roller 6 to get into fixed kerve 11 in, and activity cutting knife 8 side-to-side motion cuts up it, because maize stalk lower extreme is located fixed kerve 11, receives the part of being cut off and blocks of fixed kerve 11, avoids splashing everywhere, improves still field efficiency. The width of the movable cutting groove 23 is two to three times of that of the fixed cutting groove 11, so that the corn stalks are ensured to be fully contacted with the movable cutting knife 8 after entering the fixed cutting groove 11, and the chopping effect is improved.

Specifically, the fixed cutting knife is rectangular, and the movable cutting knife is rectangular. The structure is compact, and the manufacture and the maintenance are convenient.

Specifically, the left side and the right side of the opening of the fixed cutting groove 11 are obliquely arranged. When in use, the corn stalks can conveniently enter the fixed cutting groove 11.

Specifically, a guide rail 10 arranged along the left-right direction is installed on the upper part of the fixed cutter 7, a sliding block 13 is connected on the guide rail 10 in a sliding manner, and the movable cutter 8 is installed on the sliding block 13. When in use, the movable cutting knife 8 moves along the guide rail 10, and the movement is reliable.

An electric motor 22 is installed on the ear collecting box 1, an output end 21 of the electric motor is connected with a first connecting rod 20, the first connecting rod 20 is hinged with a second connecting rod 18, the upper portion of the fixed cutting knife 7 is connected with a push-pull rod 15 capable of moving back and forth in a sliding mode, the left side and the right side of the front end of the push-pull rod 15 are hinged with swing rods 14, the front end of each swing rod 14 is hinged with a sliding block 13, and the rear end of each push-pull rod 15 is hinged with the second connecting rod 18. When the cutting-up device is used, the motor 22 drives the motor output end 21 to rotate, the motor output end 21 drives the first connecting rod 20 to rotate, the second connecting rod 18 drives the push-pull rod 15 to move back and forth, when the push-pull rod 15 moves forwards, the swing rod 14 drives the two sliding blocks 13 to move away from each other, when the push-pull rod 15 moves backwards, the swing rod 14 drives the two sliding blocks 13 to approach each other, the two sliding blocks 13 move synchronously, the cutting-up effect is improved, meanwhile, the moving directions of the two sliding blocks 13 are opposite, the stress of the fixed cutting knife 7 is balanced, the shaking of the fixed cutting knife 7 is reduced, and the cutting-up effect is improved.

Specifically, the second link 18 is hinged to the lower side of the first link 20, and the second link 18 is hinged to the lower side of the push-pull rod 15. The structure is compact, and the space is fully utilized.

Specifically, the upper part of the fixed cutting knife 7 is provided with a sliding sleeve 16, and the push-pull rod 15 penetrates through the sliding sleeve 16 and is in sliding fit with the sliding sleeve 16. When in use, the push-pull rod 15 moves along the sliding sleeve 16, and the structure is compact and convenient to manufacture and maintain.

The front part of the ear collecting box 1 is connected with an equipment frame 2, the equipment frame 2 is provided with a motor installation cavity 19, a motor 22 is positioned in the motor installation cavity 19, and the front part of the motor installation cavity 19 is provided with a push-pull rod through hole 17 for allowing the push-pull rod 15 to penetrate through. The structure is compact, and the space is fully utilized.

The upper part of the fixed cutter 7 is provided with a shield 9, and the guide rail 10, the slide block 13 and the swing rod 14 are positioned at the inner side of the shield 9. When in use, the guard 9 protects the structures such as the guide rail 10, the slide block 13, the swing rod 14 and the like, and the service life of the guard is prolonged.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a corn harvester, including collection ear of grain case (1), collection ear of grain case (1) front portion is installed branch standing grain chain (5) and is drawn stem roller (6), a serial communication port, collection ear of grain case (1) lower extreme front portion is connected with fixed cutting knife (7) that the level set up, fixed cutting knife (7) front portion is seted up two fixed kerfs (11) that the opening is forward, the left and right sides of fixed kerfs (11) all has fixed cutting edge (24), fixed cutting knife (7) top sliding connection has two movable cutting knife (8) that can the side-to-side motion, activity cutting knife (8) front portion has been seted up and has been corresponded with fixed kerfs (11), and opening forward activity kerfs (23), activity kerfs (23) the left and right sides all has activity cutting edge (12), the width of activity kerfs (23) is two to three times of fixed kerfs (11) width.

2. The corn harvester according to claim 1, characterized in that the upper part of the fixed cutter (7) is provided with a guide rail (10) arranged along the left-right direction, the guide rail (10) is connected with a slide block (13) in a sliding way, and the movable cutter (8) is arranged on the slide block (13).

3. The corn harvester according to claim 2, characterized in that the ear collecting box (1) is provided with a motor (22), the output end (21) of the motor is connected with a first connecting rod (20), the first connecting rod (20) is hinged with a second connecting rod (18), the upper part of the fixed cutting knife (7) is slidably connected with a push-pull rod (15) capable of moving back and forth, the left side and the right side of the front end of the push-pull rod (15) are hinged with swing rods (14), the front end of each swing rod (14) is hinged with the sliding block (13), and the rear end of each push-pull rod (15) is hinged with the second connecting rod (18).

4. A maize harvesting machine according to claim 3, characterized in that the second connecting rod (18) is hinged to the underside of the first connecting rod (20), and the second connecting rod (18) is hinged to the underside of the push-pull rod (15).

5. A maize harvesting machine according to claim 3, characterized in that a sliding sleeve (16) is arranged on the upper part of the fixed cutting knife (7), and the push-pull rod (15) passes through the sliding sleeve (16) and is in sliding fit with the sliding sleeve (16).

6. The corn harvester as in claim 3, characterized in that the front part of the ear collecting box (1) is connected with an equipment frame (2), the equipment frame (2) is provided with a motor installation cavity (19), the motor (22) is positioned in the motor installation cavity (19), and the front part of the motor installation cavity (19) is provided with a push-pull rod through hole (17) for the push-pull rod (15) to pass through.

7. The corn harvester according to claim 3, characterized in that the upper part of the fixed cutter (7) is provided with a shield (9), and the guide rail (10), the slide block (13) and the swing rod (14) are positioned inside the shield (9).

8. A corn harvester according to any one of claims 1 to 7, characterized in that the front part of the ear collecting box (1) is provided with a chain wheel mounting plate (4) extending forwards, a plurality of chain wheels (3) are arranged on the chain wheel mounting plate (4), and a straw separating chain (5) is wound on the chain wheels (3).

9. A maize harvesting machine according to any of claims 1 to 7, characterized in that the shape of the fixed cutter is rectangular and the shape of the movable cutter is rectangular.

10. A corn harvester according to any one of claims 1 to 7, characterized in that the left and right sides of the opening of the fixed cutting groove (11) are inclined.