Header of harvester

Abstract

The header of the harvester comprises a reel, a rack, an auger, a gear box, a front cutting knife unit and a rear cutting knife unit, the gear box is in transmission connection with a power output device of a walking mechanism of the harvester, and the front cutting knife unit and the rear cutting knife unit are arranged on the rack. The front cutting knife unit, the auger and the rear cutting knife unit are sequentially arranged on the rack from front to back according to the advancing direction of the harvester, the reel is rotatably supported on the rack, the front cutting knife unit, the rear cutting knife unit, the auger and the reel are respectively in transmission connection with the gearbox, and the position of the front cutting knife unit is higher than that of the rear cutting knife unit. The header has the advantages that the feeding amount of the header is reduced by increasing the height of the cutter, so that the cutting load of the header is reduced, the harvesting efficiency of the harvester is improved, and the crop loss rate is reduced; and the rear cutting knife is additionally arranged to carry out secondary cutting on the stubbles.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of agricultural machinery technology, and particularly relates to a harvester header. BACKGROUND

[0002] The existing harvester header is restricted by the engine power of the harvester when harvesting crops with high stem hardness and high-density planting, which increases the chopping load of the header, thereby affecting the loss rate of the crops and the working efficiency of the header. SUMMARY

[0003] The present application aims at overcoming the deficiencies of the prior art, and provides a harvester header, which is specifically implemented by the following technical scheme:

[0004] The harvester header comprises a reel, a frame, an auger and a gear box, the gear box is in transmission connection with a power output device of a traveling mechanism of the harvester, and further comprises a front cutter unit and a rear cutter unit, the front cutter unit, the auger and the rear cutter unit are sequentially arranged on the frame from front to back in the advancing direction of the harvester, the reel is rotatably supported on the frame, the front cutter unit, the rear cutter unit, the auger and the reel are respectively in transmission connection with the gear box, and the position of the front cutter unit is higher than that of the rear cutter unit.

[0005] The harvester header is further designed to further comprise an output shaft, the output shaft is in transmission connection with the gear box and is rotatably supported on the frame.

[0006] The harvester header is further designed in that the front cutter unit comprises a first fixed cutter, a first movable cutter, a first swing ring box and a first transmission pair, the first fixed cutter is supported on the frame, the first movable cutter is in transmission connection with the first swing ring box and is slidably supported above the first fixed cutter on the frame, the first swing ring box is in transmission connection with the output shaft through the first transmission pair, and the first transmission pair is arranged on one side plate of the frame.

[0007] The harvester header is further designed in that the first transmission pair is a belt transmission pair.

[0008] The harvester header is further designed in that the auger is in transmission connection with the output shaft through a third transmission pair, and the third transmission pair is arranged on the other side plate of the frame. The harvester header is further designed in that the third transmission pair is a chain transmission pair.

[0009] The harvester header is further designed in that the rear cutter unit comprises a second fixed cutter, a second movable cutter, a second swing ring box and a universal joint, the second movable cutter is in transmission connection with the second swing ring box and is slidably supported above the second fixed cutter on the frame, and the second swing ring box is in transmission connection with the gear box through the universal joint.

[0010] A further design of the harvester header is that the reel is connected to the output shaft via a fourth transmission pair, which is a chain-belt composite transmission pair. The chain-belt composite transmission pair is connected to the output shaft via a reel speed regulator.

[0011] The harvester header of this utility model reduces the feed amount of the header by increasing the height of the cutting blade, thereby reducing the chopping load of the header, improving the harvesting efficiency of the harvester, and reducing the crop loss rate; and further, a rear cutting blade is added to perform secondary cutting of the stubble. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the header of a harvester.

[0013] Figure 2 for Figure 1 The left view of the schematic diagram of the harvester header shown.

[0014] Figure 3 for Figure 1 The diagram shown is a top view of the harvester header.

[0015] Figure 4 for Figure 1 The rear view of the structural schematic diagram of the harvester header shown.

[0016] Figure 5 for Figure 1 The diagram shows the right view of the structural schematic of the harvester header. Detailed Implementation

[0017] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] like Figure 1 , Figure 3 The harvester header of this embodiment mainly consists of a reel 1, a frame 2, an auger 5, and a gearbox 40. The gearbox 40 is connected to the power output device (not shown in the figure) of the harvester's traveling mechanism. The harvester header of this embodiment also includes a front cutter unit 2 and a rear cutter unit 3. The front cutter unit 2, the auger 5, and the rear cutter unit 3 are arranged sequentially from front to back on the frame 2 according to the harvester's forward direction. The reel 1 is rotatably supported on the frame 2. The front cutter unit 2, the rear cutter unit 3, the auger 5, and the reel 1 are all connected to the gearbox 40. The front cutter unit 2 is positioned higher than the rear cutter unit 3.

[0019] The harvester header in this embodiment also includes an output shaft 4, which is connected to the gearbox 40 and is rotatably supported on the frame 2.

[0020] like Figure 2In this embodiment, the front cutting unit 2 mainly consists of a first fixed cutting blade 23, a first movable cutting blade 22, a first swing ring box 21, and a first transmission pair 24. The first fixed cutting blade 23 is supported on the frame 2, and the first movable cutting blade 22 is slidably supported on the frame 2 above the first fixed cutting blade and is connected to the first swing ring box 21. The first swing ring box 21 is connected to the output shaft 4 via the first transmission pair, and the first transmission pair 24 is disposed on one side plate of the frame. In this embodiment, the first transmission pair 24 is a belt drive pair, which includes a driving pulley, an intermediate pulley, a driven pulley, and a tensioning pulley. The driven pulley is coaxial with the swing ring of the first swing ring box 21.

[0021] like Figure 5 The hinge 5 is connected to the output shaft 4 via a third transmission pair 51, which is located on the other side plate of the frame 2. The third transmission pair 51 is a chain drive pair, mainly composed of a driving sprocket 51, a driven sprocket 52, and a tension wheel 53. The radius of the driving sprocket 51 is smaller than the radius of the driven sprocket 52.

[0022] like Figure 2 , Figure 3 The rear cutting unit 3 mainly consists of a second fixed cutting blade (not shown in the figure), a second movable cutting blade 32, a second swing ring box 31, and a universal joint 33. The second movable cutting blade 32 is drivenly connected to the second swing ring box 31 and is slidably supported on the frame above the second fixed cutting blade. In this embodiment, the second fixed cutting blade is supported on the frame by a blade holder 102. The second swing ring box 31 is drivenly connected to the gearbox 40 through the universal joint 33.

[0023] like Figure 2 , Figure 4 The reel 1 is connected to the output shaft 4 via a fourth transmission pair 11. The fourth transmission pair 11 is a chain-belt composite transmission pair. This chain-belt composite transmission pair is connected to the output shaft 4 via the reel speed controller 12 and the sprocket assembly transmission unit 13. The chain-belt composite transmission pair comprises a chain-belt drive wheel 113, a sprocket assembly 112 containing a tension wheel 13, and a pulley assembly 111. The reel 1 is connected to the chain-belt drive wheel 113 via the pulley assembly 111, and the chain-belt drive wheel 113 is connected to the speed controller 12 via the sprocket assembly 112.

[0024] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this invention should be included within the scope of protection of this invention. Therefore, the scope of protection of this invention should be determined by the scope of the claims.

Claims

1. A harvester header comprising a reel, a frame, an auger, and a gear box drivingly connected to a power take-off of a harvester travel mechanism, characterized in that, The harvester further comprises a front cutter unit and a rear cutter unit, the front cutter unit, the auger and the rear cutter unit are sequentially arranged on the frame from front to rear in the advancing direction of the harvester, the reel is rotatably supported on the frame, the front cutter unit, the rear cutter unit, the auger and the reel are respectively in transmission connection with the gear box, and the front cutter unit is higher than the rear cutter unit.

2. The harvester header of claim 1, wherein The harvester further comprises an output shaft, the output shaft is in transmission connection with the gear box and is rotatably supported on the frame.

3. The harvester header of claim 2, wherein The front cutter unit comprises a first fixed cutter, a first movable cutter, a first swing ring box and a first transmission pair, the first fixed cutter is supported on the frame, the first movable cutter is in transmission connection with the first swing ring box and is slidably supported above the first fixed cutter on the frame, the first swing ring box is in transmission connection with the output shaft through the first transmission pair, and the first transmission pair is arranged on one side plate of the frame.

4. The harvester header of claim 3, wherein The first transmission pair is a belt transmission pair.

5. The harvester header of claim 3, wherein The auger is in transmission connection with the output shaft through a third transmission pair, and the third transmission pair is arranged on the other side plate of the frame.

6. The harvester header of claim 5, wherein The third transmission pair is a chain transmission pair.

7. The harvester header of claim 2, wherein The rear cutter unit comprises a second fixed cutter, a second movable cutter, a second swing ring box and a universal joint, the second movable cutter is in transmission connection with the second swing ring box and is slidably supported above the second fixed cutter on the frame, and the second swing ring box is in transmission connection with the gear box through the universal joint.

8. The harvester header of claim 2, wherein The reel is in transmission connection with the output shaft through a fourth transmission pair, the fourth transmission pair is a chain-belt composite transmission pair, and the chain-belt composite transmission pair is in transmission connection with the output shaft through a reel speed regulator. The reel is in transmission connection with the output shaft through a fourth transmission pair, the fourth transmission pair is a chain-belt composite transmission pair, and the chain-belt composite transmission pair is in transmission connection with the output shaft through a reel speed regulator.

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