Cutter of corn harvester

Abstract

A cutter of a corn harvester belongs to the field of agricultural machinery. Comprising a gear box, a gear, a bearing, a bearing seat, a transmission shaft, a clamp spring, an oil seal, saw blades, a saw blade fixing plate, a fixing screw, a cutter protection device and a cutter fixing frame, and a cutter is composed of two sets of saw blades and moves in opposite directions. According to the cutter of the corn harvester, power is transmitted by the header, and synchronous cutting is achieved when the harvester works. The beneficial effects of the utility model are that the saw blade is used to form the disc cutter to operate, so that harvesting operation can be carried out in any moisture state, blocking is avoided, the operation efficiency is improved, the income of a machinist is increased, the market demand can be stimulated, and the development of agricultural mechanization is promoted.

Description

Technical Field

[0001] The utility model relates to a cutter for a corn harvester, belonging to the field of agricultural machinery. Background Art

[0002] Cutters are widely used in corn combine harvesters. When the combine harvester is operating, the cutter makes a reciprocating linear motion to cut the corn stalks. When the traditional combine harvester cutter encounters dew or weeds during operation, since the reciprocating cutter blades need a knife guard and cannot fully cover the entire tool, the tool often protrudes, and the stalks and weeds cannot be cut off, resulting in blockage and damage to the tool, and the normal operation cannot be carried out. This causes losses to the machine operator. Summary of the Invention

[0003] The utility model mainly overcomes the above defects and provides a cutter using a saw blade.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a cutter for a corn harvester, which is composed of a gearbox, a gear, an idler gear, a bearing, a bearing seat, a transmission shaft, a circlip, an oil seal, a saw blade, a saw blade fixing plate, fixing screws, a knife guard, and a cutter fixing frame. The cutter is composed of two groups of saw blades and moves in opposite directions.

[0005] The cutter of the corn harvester is powered by a cutter bar transmission.

[0006] The gearbox is composed of a box body and a cover plate for sealing. The box body is opened according to the standard of the bearing seat.

[0007] The gear has splines inside.

[0008] The bearing supports the saw blade and reduces the movement resistance. The bearing is embedded in the bearing seat.

[0009] The bearing seat is of an embedded type and is embedded in the box body.

[0010] The transmission shaft has splines formed by machining, and there is a circlip groove at the end of the transmission shaft.

[0011] The circlip is assembled in the circlip groove of the transmission shaft.

[0012] The oil seal is installed in the bearing seat to seal the lubricating oil.

[0013] The saw blade has a diameter of 300 mm - 500 mm, which is determined according to the row spacing of the harvested corn. There are two saw blades in each harvesting channel, and two idler gears and one gear are used for transmission to form a reverse rotation.

[0014] The saw blade fixing plate fixes the saw blade to rotate with the transmission shaft.

[0015] The fixing screw fastens the saw blade to rotate with the transmission shaft.

[0016] The cutter guard mainly protects the safety of the saw blade during operation.

[0017] The cutter fixing frame is connected to the cutting table and can be adjusted vertically and horizontally to achieve synchronous cutting when the harvester is moving.

[0018] In summary, the working principle of the present utility model is that the power transmitted by the cutting table reaches the cutter. The gears of the cutter rotate through the engagement of the idler gears. There are two idler gears in each harvester channel, and the two gears are connected to the saw blade to form a disc-type relative operation. When cutting in the relative operation, there is a pushing effect on the corn stalks. The corn stalks enter the reel channel after being pushed and are then ear-picked. The cobs after ear-picking enter the husker.

[0019] The beneficial effects of the present utility model are that the use of the saw blade to form a disc cutter operation can perform harvesting operations under any moisture condition. During the operation, the corn stalks and the weeds in the field can be cut together, avoiding blockage, improving the operation efficiency, increasing the income of the operator at the same time, stimulating the market demand, and promoting the development of agricultural mechanization. Brief Description of the Drawings

[0020] Figure 1 Plan View

[0021] Figure 2 Front Elevation

[0022] Figure 3 Back Elevation

[0023] Figure 4 Left Side View

[0024] Figure 5 Right Side View

[0025] Figure 6 Bearing Seat Fixing Diagram Detailed Description of the Preferred Embodiment

[0026] The present utility model will be further described in detail with reference to the accompanying drawings.

[0027] Referring to FIGS. 1-5, a corn harvester cutter according to the present invention comprises a gearbox 1, gears 2, bearings 3, bearing seats 4, a transmission shaft 5, circlips 6, oil seals 7, saw blades 8, cutter guards 9, cutter fixing frames 10, saw blade fixing plates 11, fixing screws 12, idler gear one (13), and idler gear two (14). The cutter consists of two groups of saw blades 8 moving in opposite directions.

[0028] The gearbox 1 is fixed to the cutter fixing bracket 10. The upper part of the gearbox 1 is embedded in the bearing seat 4. The bearing seat 4 is embedded with the oil seal 7 and the bearing 3. One end of the transmission shaft 5 is inserted into the bearing 3 and passes through the gear 2. A circlip is embedded under the gear 2. The other end of the transmission shaft 5 is installed with the saw blade 8. The saw blade fixing plate 11 is installed above the saw blade 8. The fixing screw 12 is fastened above the saw blade fixing plate 11. The cutter guard 9 is connected to the gearbox 1. The idler gear 1 and the idler gear 2 are fixed inside the gearbox 1.

[0029] The implementation principle of this embodiment is that the power transmitted by the cutting table reaches the cutter. The idler gear 1 of the cutter meshes with the gear 2, and the gear 2 meshes with the idler gear 2 to rotate. Each harvester channel is provided with an idler gear 1 and an idler gear 2, which respectively mesh with both sides of the gear 2. The gear 2 is connected to the saw blade 8 to form a disc-type relative operation. When cutting in the relative operation, there is a pushing effect on the corn plants. The corn plants enter the ear picking channel after being pushed and then have their ears picked. The ears after ear picking enter the husker.

[0030] This embodiment is the best embodiment of the single channel of the present utility model, and does not limit the protection scope of the present utility model in sequence. Therefore, all equivalent changes made according to the shape, structure and principle of the present invention should be covered within the protection scope of the present utility model.

Claims

1. A corn harvester cutter, characterized in that: The invention comprises a gear box (1), a gear (2), a bearing (3), a bearing seat (4), a transmission shaft (5), a retaining ring (6), an oil seal (7), a saw blade (8), a knife guard (9), a cutter fixing frame (10), a saw blade fixing plate (11), a fixing screw (12), an idler wheel 1 (13), and an idler wheel 2 (14). The cutter comprises two sets of saw blades (8) that move in opposite directions. The corn harvester cutter transmits power from the cutting table. The gear box (1) comprises a housing and a cover plate seal. The housing has a standard opening according to the bearing seat (4). The gear (2) has a spline inside. The bearing (3) supports the saw blade (8) and reduces movement resistance. The bearing (3) is embedded in the bearing seat (4). The bearing seat (4) is embedded. The bearing seat (4) is embedded in the housing. The transmission shaft (5) has a machined spline. The end of the transmission shaft (5) has a retaining ring groove. The retaining ring (6) Assembled in the retaining ring groove of the transmission shaft, the oil seal (7) is installed in the bearing seat (4) to seal the lubricating oil. The saw blade (8) adopts a diameter of 300mm-500mm, which is determined according to the row spacing of the harvested corn. Each harvesting channel has a group of two saw blades (8), using two idler wheels 1 and 2, and two gears (2) to drive to form opposite directions of rotation. The saw blade fixing plate (11) is used to fix the saw blade (8) to rotate with the transmission shaft. The fixing screw (12) is used to fasten the saw blade (8) to rotate with the transmission shaft. The knife guard (9) mainly protects the safety of the saw blade (8) at work. The cutter fixing frame (10) is connected to the cutting table and can be adjusted up and down, front and back, so as to achieve synchronous cutting when the harvester is moving.

2. A corn harvester cutter according to claim 1, characterized in that: The power transmitted from the cutting table is transmitted to the cutter, and the gear (2) of the cutter rotates through the meshing of the idler wheel 1. Each harvester channel has an idler wheel 1 and an idler wheel 2. The two gears (2) are connected to the saw blade (8) to form a disc-type relative rotation. When the relative rotation is cutting, it has a pushing effect on the corn stalks. When the corn stalks are pushed, they enter the stalk-pulling channel and are then plucked. After the plucked ears, they enter the peeling machine.

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