Universal header and corn harvester

Abstract

The utility model provides a general header and a corn harvester, and relates to the technical field of agricultural machinery devices, the general header comprises a rack, a conveying groove, an adaptive frame, a connecting seat, a universal joint assembly, a transmission closed gearbox, a feeding auger assembly, a dividing and cutting assembly and a side auger assembly; a conveying groove is formed in the rear surface of the machine frame, an adaptive frame is arranged on the periphery of the conveying groove and detachably installed on the machine frame, connecting bases are arranged on the two sides of the rear surface of the machine frame, a universal joint assembly is arranged in each connecting base, the universal joint assemblies are in transmission connection with a transmission closed gearbox, and a feeding auger assembly is arranged at the front end of the machine frame. A plurality of groups of dividing and cutting assemblies in transmission connection with the transmission closed gearbox are arranged at the front end of the feeding auger assembly, and edge auger assemblies are arranged on the two sides of the rack; according to the universal header and the corn harvester, the technical problems that in the prior art, a header can only be connected with a specific harvester in a matched mode, and universality is lacked are solved; the technical effect that harvesters of different structures can be hung is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural mechanical devices, in particular to a universal cutting platform and a corn harvester. Background Art

[0002] As one of the main food crops in China, the huge output and demand of corn have a profound impact on the agricultural economy. In order to improve agricultural production efficiency and continuously pursue the quality of crop harvesting, corn harvesters have replaced the early manual harvesting. Corn harvesters are agricultural devices that use machinery to harvest corn according to agronomic requirements after the corn is mature or nearly mature. It can complete a series of operations such as picking, threshing, separating and collecting corn. This mechanical device not only reduces the labor intensity of farmers, but also greatly improves the speed and efficiency of harvesting.

[0003] With the increasing demand of users for refined harvesting of corn harvesters, the performance of the ear-picking and cutting table at the front end of the corn harvester has received more attention. The cutting table is an indispensable key component of the harvester. It is responsible for picking off the mature corn ears and separating the corn ears from the stalks, laying the foundation for subsequent threshing and separation work.

[0004] In the prior art, although the basic functions of the headers are roughly the same, that is, picking corn ears by cutting crop stalks, the parts that realize the basic functions are different; thus, the connection methods of the headers and harvesters are different, which results in the headers often being only adapted to connect to specific models of harvesters and lacking versatility. In addition, when the header encounters abnormal conditions such as blockage or overload during operation, once it is damaged, it may face the dilemma of having to replace the harvester as a whole or having to buy the same model of header to maintain the operation, which not only increases the economic cost, but also affects the continuity and efficiency of the operation. Utility Model Content

[0005] The utility model aims to provide a universal cutting platform, so as to reduce the technical problems in the prior art that the cutting platform can only be adapted to connect to a specific harvester, lacks versatility, and faces the need for overall replacement when the cutting platform is damaged.

[0006] The utility model provides a universal cutting platform, comprising: a frame, a conveying trough, an adapter frame, a connecting seat, a universal joint assembly, a transmission closed gear box, a feeding auger assembly, a crop separation and cutting assembly and a side auger assembly;

[0007] A conveying trough is provided on the rear surface of the frame, an adapter frame is provided at the periphery of the conveying trough, and the adapter frame can be detachably mounted on the frame, connecting seats are provided on both sides of the rear surface of the frame, and a universal joint assembly is provided in each connecting seat, and the universal joint assembly is transmission-connected with a transmission closed gear box, a feeding auger assembly is provided at the front end of the frame, and a plurality of groups of grain-cutting assemblies transmission-connected with the transmission closed gear box are arranged at the front end of the feeding auger assembly, and side auger assemblies are provided on both sides of the frame;

[0008] Furthermore, the universal joint assembly includes a column, a first fork body, a cross shaft and a second fork body; the first fork bodies are arranged at both ends of the column, and the two first fork bodies are rotatably connected to the second fork bodies through the cross shaft, a second fork body arranged at one end of the connecting seat is connected to the transmission closed gear box, and an input shaft head is welded at the end of the other second fork body, and the input shaft head is transmission-connected to the output shaft of the harvester;

[0009] Furthermore, both ends of the column are provided with ball cage sleeves, and a safety pin is provided at the connection between the second fork body and the transmission closed gear box;

[0010] Furthermore, a protective cover is provided outside the transmission closed gear box;

[0011] Further, the feeding auger assembly includes a sprocket wheel drivingly connected to the transmission closed gear box, the sprocket wheel is bolted to a clutch, a first transmission shaft is inserted inside the clutch, a roller body capable of rotatably matching is arranged on the outer periphery of the first transmission shaft, a blade is fixedly connected to the outer surface of the roller body, and the center position of the roller body is fixedly connected to the surface of the frame through a support plate;

[0012] Furthermore, the straw dividing and cutting assembly comprises an ear picking plate arranged at the front end of the feeding auger assembly, the ear picking plates are arranged in parallel with equal spacing, a stem pulling roller is arranged at the bottom end of the ear picking plate, the stem pulling roller is arranged in pairs and can rotate in opposite directions to each other, a symmetrically distributed straw pulling chain is arranged above the ear picking plate, and a straw divider is arranged at the top of the straw pulling chain;

[0013] Furthermore, the front end of the ear picking plate is in an arc shape;

[0014] Furthermore, the stem pulling roller and the rice pulling chain are both connected to the ear picking gear box with a clutch;

[0015] Furthermore, the side auger assembly includes a hydraulic motor arranged on the side of the frame, the hydraulic motor is transmission-connected to a second transmission shaft, and the second transmission shaft is rotationally connected to a conical spiral auger.

[0016] Another object of the utility model is to provide a corn harvester, comprising the universal cutting platform mentioned above.

[0017] Beneficial effects:

[0018] The utility model provides a universal cutting platform and a corn harvester. A conveying trough is provided on the rear surface of a frame, an adapting frame is provided on the outer periphery of the conveying trough, and the adapting frame can be detachably mounted on the frame to realize direct transportation of corn ears from the conveying trough to the harvester at the rear. The adapting frame is detachably connected to the frame, and harvesters of different models can be hung.

[0019] Connecting seats are arranged on both sides of the rear surface of the frame, and a universal joint assembly is arranged in each connecting seat. The universal joint assembly is connected to a transmission closed gear box, and the power is transmitted from the transmission device of the harvester to the transmission closed gear box through the universal joint assembly to provide power for the cutting table in front. A feeding auger assembly is arranged at the front end of the frame, and several groups of straw-cutting assemblies connected to the transmission closed gear box are arranged at the front end of the feeding auger assembly. Side auger assemblies are arranged on both sides of the frame; the feeding auger transfers the ears picked by the straw-cutting assembly from the conveying trough, and the side auger assembly can effectively lift up the fallen corn.

[0020] The utility model uses an adapter frame and a universal joint assembly, so that the utility model can be compatible with harvesters of different models, thereby increasing the applicability and flexibility of the equipment and realizing reliable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic structural diagram of a universal header provided by an embodiment of the utility model;

[0023] Figure 2 A front view of a universal header provided by an embodiment of the utility model;

[0024] Figure 3 A schematic structural diagram of a universal joint assembly in a universal header provided by an embodiment of the utility model;

[0025] Figure 4 A schematic diagram of the structure of a feeding auger assembly in a universal harvesting table provided in an embodiment of the utility model;

[0026] Figure 5 A schematic diagram of the structure of a side auger assembly in a universal harvesting table provided by an embodiment of the utility model;

[0027] Figure 6 A schematic diagram of the structure of a universal ear picking gear box in a harvesting table provided by an embodiment of the utility model;

[0028] Figure 7 The present invention is a schematic structural diagram of an ear picking plate in a universal harvesting platform provided in an embodiment of the utility model.

[0029] Icons: 100-frame; 200-conveying trough; 300-adapter frame; 400-connecting seat; 500-universal joint assembly; 501-column; 502-first fork body; 503-cross shaft; 504-second fork body; 505-input shaft head; 506-ball cage sleeve; 507-safety pin; 600-transmission closed gear box; 601-protective cover; 700-feeding auger assembly; 701-sprocket wheel; 702-clutch; 703-first transmission shaft; 704-roller body; 705-blade; 706-support plate; 800-grain dividing and cutting assembly; 801-ear picking plate; 802-stem pulling roller; 803-grain pulling chain; 804-grain divider; 805-ear picking gear box; 900-side auger assembly; 901-hydraulic motor; 902-second transmission shaft; 903-screw auger. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Some implementation methods of the present utility model are described in detail below in conjunction with the accompanying drawings.

[0037] like Figure 1 , Figure 2 As shown, the utility model provides a universal harvesting platform, including: a frame 100, a conveying trough 200, an adapter frame 300, a connecting seat 400, a universal joint assembly 500, a transmission closed gear box 600, a feeding auger assembly 700, a grain dividing and cutting assembly 800 and a side auger assembly 900;

[0038] In the design of the corn harvester, a rectangular conveying trough 200 is provided at the center of the rear surface of the frame 100, and an adapter frame 300 is detachably connected to the frame 100 at the top of the outer periphery of the conveying trough 200. The adapter frame 300 can be replaced, which not only improves the versatility and adaptability of the equipment, but also can quickly adapt to corn harvesters of different models, thereby meeting diverse operation requirements.

[0039] The connection seat 400 is L-shaped and fixed to the frame 100 by bolts. A universal joint assembly 500 is arranged in each connection seat 400, allowing the universal joint assembly to rotate and adjust in multiple directions to adapt to power input at different angles. One end of the universal joint assembly 500 is connected to the transmission closed gear box 600, and the other end receives power after docking with the corn harvester. It not only improves the flexibility and efficiency of power transmission, but also reduces the additional stress and wear caused by angle mismatch during the movement of the corn harvester, thereby extending the service life of the equipment.

[0040] The front end of the frame 100 is welded with a feeding auger assembly 700 through a support plate 706, and a plurality of groups of straw separation and cutting assemblies 800 are arranged at the front and bottom of the feeding auger assembly 700, which are connected to the transmission closed gear box 600. They are used to separate corn ears from corn stalks and cut them. In addition, the side auger assemblies 900 arranged on both sides of the frame 100 provide the ability to roll in when facing the fallen corn stalks, further enhancing the adaptability of the equipment.

[0041] like Figure 3 As shown, in the embodiment of the present utility model, the universal joint assembly 500 includes a column 501, a first fork body 502, a cross shaft 503 and a second fork body 504;

[0042] The column 501 is the central component of the universal joint assembly, and its two ends are respectively provided with first fork bodies 502. These first fork bodies 502 allow them to rotate freely on the column 501, thereby providing multi-angle power input.

[0043] Each first fork body 502 is rotatably connected to the second fork body 504 via a cross shaft 503. The cross shaft 503 enables the universal joint assembly 500 to flexibly rotate in different directions while maintaining the stability of power transmission. One end of the second fork body 504 is connected to the transmission closed gear box 600, and the other end is connected to the output shaft of the corn harvester via an input shaft head 505, and the connection method adopts a spline connection.

[0044] In order to improve the durability and protection of the universal joint assembly, both ends of the column 501 are provided with ball cage sleeves 506. The ball cage sleeves 506 protect the rotating part of the column 501 and prevent dust and impurities from entering, thereby extending the service life of the universal joint assembly.

[0045] In addition, a safety pin 507 is provided at the connection between the second fork body 504 and the transmission closed gear box 600. When an abnormality occurs in the transmission system, the connection between the harvester and the header can be disconnected in time to prevent the fault from further expanding.

[0046] In the embodiment of the utility model, a protective cover 601 is provided outside the transmission closed gear box 600, which improves the service life and reliability while ensuring the power transmission of the transmission closed gear box.

[0047] like Figure 4 As shown, in the embodiment of the utility model, the feeding auger assembly 700 includes a sprocket wheel 701 that is transmission-connected to the transmission closed gear box 600, and the sprocket wheel 701 is bolted with a clutch 702. The clutch 702 is directly fixed to the rotating sprocket wheel 701 through bolts, which can provide an assembly position for the clutch and limit the sprocket wheel from jumping. A first transmission shaft 703 is inserted into the clutch 702, and a roller body 704 that can be rotatably matched is arranged on the outer periphery of the first transmission shaft 703. A blade 705 is fixed to the outer surface of the roller body 704. The first transmission shaft 703 rotates and drives the roller body 704 and the blade 705 to rotate, so as to transport the picked ears to the middle conveying trough 200; the center position of the roller body 704 is fixed to the surface of the frame 100 through a support plate 706.

[0048] It should be noted that the clutch 702 may be a friction clutch or an electromagnetic clutch, so as to cut off the transmission between the sprocket 701 and the first transmission shaft 703 .

[0049] like Figure 6 , Figure 7 As shown, in an embodiment of the utility model, the crop separating and cutting assembly 800 includes an ear picking plate 801 arranged at the front end of the feeding auger assembly 700. The ear picking plates 801 are distributed in parallel at equal intervals, and the front end of the ear picking plates is arc-shaped, which can more naturally guide the crops into the machine and reduce the damage to the crops.

[0050] It should be noted that the gap between two adjacent ear picking plates 801 is 3 cm to 3.5 cm, and is symmetrically adjusted according to the actual size of the corn ears, thereby improving the feeding smoothness and feeding capacity of the crops and reducing impurities.

[0051] A stem pulling roller 802 is provided at the bottom end of the ear picking plate 801. The stem pulling rollers 802 are arranged in pairs and can rotate in opposite directions to each other, allowing the corn stalks to be effectively pulled in when entering the harvesting platform and rolling and pressing the corn stalks downward.

[0052] Symmetrically distributed reel chains 803 are arranged above the ear picking plate 801, and the crops are moved and transported by the reel teeth on the reel chains 803. The reel teeth are usually evenly staggered and installed on two reel chains 803 in the same ear picking channel to ensure that the working surface faces the transport direction, thereby effectively guiding the crops to the rear.

[0053] A grain divider 804 is provided at the top of the grain chain 803. The grain divider 804 comprises a grain divider plate, a grain divider plate and a guard plate, and the grain divider 804 effectively diverts the grains to be harvested and to be harvested in the field, thereby reducing losses and improving the harvesting efficiency of the grains.

[0054] The stem pulling roller 802 and the straw pulling chain 803 are both connected to the ear picking gear box 805 with a clutch. The ear picking gear box 805 has a clutch, which can disconnect the power when necessary to protect the mechanical parts or adjust the operation of the harvester under certain circumstances, providing the operator with more control options, which can be flexibly adjusted according to the actual harvesting situation, further improving the adaptability of the machine and the convenience of operation.

[0055] It should be noted that the utility model is a universal cutting platform, through the safety pin 507 on the universal joint assembly 500; the ear picking gear box 805 and the feeding auger assembly 700 are equipped with clutches; triple protection is provided, and the transmission can be cut off when a fault occurs, thereby playing a protective role;

[0056] like Figure 5 As shown, the side auger assembly 900 includes a hydraulic motor 901 disposed on the side of the frame 100, and the hydraulic motor 901 and the hydraulic pipeline on the frame 100 jointly promote the rotation of the second transmission shaft 902, and a conical spiral auger 903 is sleeved on the outer periphery of the second transmission shaft 902 to drive the rotation of the spiral auger 903. The fallen corn can be effectively raised; and the spiral auger 903 can be controlled by the hydraulic motor 901 and the hydraulic pipeline on the frame 100, and can be stopped in an emergency.

[0057] The utility model also provides a corn harvester, comprising the universal cutting platform.

[0058] Based on the above embodiments, the working process of the integrated tool holder provided by the embodiment of the utility model is as follows:

[0059] The universal header can be connected to harvesters of different models by replacing the adapter frame 300 on the rear surface of the frame 100. The universal joint assembly 500 can be connected to the harvester for power transmission. One end of the universal joint assembly 500 is connected to the output shaft of the harvester through the input shaft head 505, and the other end is connected to the transmission closed gear box 600. The header is allowed to rotate and adjust in multiple directions to adapt to power input at different angles.

[0060] When working, the corn is first guided to the grain separation and cutting assembly 800. The ear picking plates 801 are evenly spaced and parallel, and the front end is in an arc shape, guiding the crops to enter the machine smoothly. The stem pulling rollers 802 are arranged in pairs and rotate in opposite directions to achieve effective pulling in and preliminary separation of the crops. The grain pulling chains 803 are symmetrically distributed, and the corn is moved by the teeth on them.

[0061] The picked corn ears are transported to the conveying trough 200 on the rear surface of the frame 100 through the rotation of the roller body 704 and the blade 705 of the feeding auger assembly 700. The conveying trough 200 cooperates with the receiving part of the harvester to smoothly transport the ears to the harvester for further processing. When facing fallen crops, the spiral auger 903 of the side auger assembly 900 can lift up and reel in the crops, enhancing the adaptability and collection efficiency of the harvesting table. During the whole process, the harvesting ear gear box 805 of the harvesting table and the clutch 702 of the feeding auger assembly 700 provide protection in emergency situations to ensure the safe and stable operation of the machine.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A universal header, characterized in that: include: A frame (100), a conveying trough (200), an adapter frame (300), a connecting seat (400), a universal joint assembly (500), a transmission closed gear box (600), a feeding auger assembly (700), a grain dividing and cutting assembly (800) and a side auger assembly (900); The rear surface of the frame (100) is provided with the conveying trough (200), the outer periphery of the conveying trough (200) is provided with the adapter frame (300), and the adapter frame (300) can be detachably mounted on the frame (100); the connecting seats (400) are provided on both sides of the rear surface of the frame (100), and each of the connecting seats (400) is provided with a universal joint assembly (500), and the universal joint assembly (500) is transmission-connected to the transmission closed gear box (600); the front end of the frame (100) is provided with a feeding auger assembly (700), and the front end of the feeding auger assembly (700) is provided with a plurality of groups of the grass-cutting assemblies (800) transmission-connected to the transmission closed gear box (600); and the two sides of the frame (100) are provided with side auger assemblies (900).

2. The universal header according to claim 1, characterized in that: The universal joint assembly (500) includes a column (501), a first fork body (502), a cross shaft (503) and a second fork body (504); the first fork bodies (502) are arranged at both ends of the column (501), and the two first fork bodies (502) are rotatably connected to the second fork bodies (504) through the cross shaft (503); one of the second fork bodies (504) arranged at one end of the connecting seat (400) is connected to the transmission closed gear box (600), and the end of the other second fork body (504) is welded with an input shaft head (505), and the input shaft head (505) is transmission-connected to the output shaft of the harvester.

3. The universal header according to claim 2, characterized in that: Ball cage sleeves (506) are provided at both ends of the column (501), and a safety pin (507) is provided at the connection between the second fork body (504) and the transmission closed gear box (600).

4. The universal header according to claim 1, characterized in that: A protective cover (601) is arranged outside the transmission closed gear box (600).

5. The universal header according to claim 1, characterized in that: The feeding auger assembly (700) includes a sprocket wheel (701) drivingly connected to the transmission closed gear box (600), the sprocket wheel (701) is bolted to a clutch (702), a first transmission shaft (703) is inserted into the clutch (702), the outer periphery of the first transmission shaft (703) is provided with a roller body (704) that can be rotatably matched, the outer surface of the roller body (704) is fixedly connected to a blade (705), and the center position of the roller body (704) is fixedly connected to the surface of the frame (100) through a support plate (706).

6. The universal header according to claim 1, characterized in that: The straw dividing and cutting assembly (800) comprises an ear picking plate (801) arranged at the front end of the feeding agitator assembly (700), the ear picking plates (801) are arranged in parallel at equal intervals, stem pulling rollers (802) are arranged at the bottom end of the ear picking plates (801), the stem pulling rollers (802) are arranged in pairs and can rotate in opposite directions to each other, and symmetrically distributed straw chains (803) are arranged above the ear picking plates (801), and a straw divider (804) is arranged at the top of the straw pulling chain (803).

7. The universal header according to claim 6, characterized in that: The front end of the ear picking plate (801) is in an arc shape.

8. The universal header according to claim 6, characterized in that: The stem pulling roller (802) and the grain pulling chain (803) are both transmission-connected to an ear picking gear box (805) with a clutch.

9. The universal header according to claim 1, characterized in that: The side auger assembly (900) comprises a hydraulic motor (901) arranged on the side of the frame (100), the hydraulic motor (901) is drivingly connected to a second transmission shaft (902), and the second transmission shaft (902) is rotatably connected to a conical spiral auger (903).

10. A corn harvester, characterized in that: It comprises the universal cutting platform as described in any one of claims 1 to 9.

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