A three-sided tooth cutter blade
A cutter and blade technology, applied in the field of agricultural machinery, can solve the problem of no harvester cutter blade standard and design requirements, and achieve the effect of smooth surface
Inactive Publication Date: 2011-12-07
YUNNAN PROV AGRI MACHINERY INST +2
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Embodiment 2
[0047] Known: sugarcane stalk diameter D = 40mm. The main structural parameters of the blade are determined as follows:
[0048] Blade cutting angle α=23°;
[0049] Blade top width b 1 =20;
[0050] Blade face angle λ=36°±1°;
[0051] Blade tooth tip length s = 1.1 ± 0.1mm;
[0052] Blade tooth distance t=2.7mm;
[0053] Blade edge profile angle θ=23°;
[0054] Blade tip angle β 1 +β 2 =56°±2°.
[0055] The calculation and determination methods of other parameters are the same as in Example 1.
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The invention is a three-sided tooth cutter blade. Both sides of the blade and the top of the blade adopt a tooth-shaped cutting edge. The blade tooth edge is a trapezoidal section tooth edge with equal depth tooth pattern. The main structural parameters of the blade are as follows: blade cutting angle α=20°~24°; Top width b1=18~20mm; blade face angle λ=34°~38°; blade tip length s=1.0~1.5mm; blade pitch t=2.0~2.8mm; blade edge angle θ =20°~24°; blade tip angle β1+β2=50°~60°. The design of the present invention is carried out according to the characteristics of the sugarcane stalk, so that it can meet the use requirements of sugarcane harvesting. Blade cutting achieves the effect of smooth surface of sugarcane incision and no splitting phenomenon (low rate of perennial root breakage).
Description
technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a three-sided tooth cutter blade. Background technique [0002] Whether the design of the structural parameters of the reciprocating sugarcane harvester cutter blade is reasonable or not is directly related to the use effect of the reciprocating sugarcane harvester cutter. Sugarcane stalks are tall and rigid, which are different from rice and wheat crops with thin and short stalks and low rigidity. There are few research reports on reciprocating cutting blades for such thick and tall stalk crops at home and abroad. Therefore, in-depth research on the cutter blade of the reciprocating sugarcane harvester has versatility and practicability for harvesting thick and tall stalk crops similar to sugarcane. [0003] The reciprocating sugarcane harvester adopts the upper and lower double-moving knife cutter structure. The moving blade is the main cutting part of the cutte...
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IPC IPC(8): A01D34/02
Inventor 方卫山牛宪伟杨俊敏杨云福李之平朱毅蒋立杨卫民杨永发周新民
Owner YUNNAN PROV AGRI MACHINERY INST