Descartes leaf-shaped line type corrugated lateral straw cleaning cutter
A stalk-cleaning knife and leaf-shaped wire technology, applied in shovels, plows, tillage machines, etc., can solve the problems of cleaning stubble with soil, poor stiffness and strength, and wear-resistant blade teeth.
Inactive Publication Date: 2018-11-13
NORTHEAST AGRICULTURAL UNIVERSITY
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Problems solved by technology
It mainly relies on the lateral straw clearing and straw covering device in front of the sowing and fertilizing device to complete the preparation of the seed bed. However, because the knife teeth of the key components of the lateral straw clearing and straw covering device are entangled with straw during the working process, the cleaning of the root stubble is serious. Defects such as non-wear-resistant cutter teeth, poor rigidity and strength have restricted the operating efficiency, seeding quality, and reliability and safety of the original stubble land no-tillage and straw-covered precision seeder.
Method used
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Embodiment Construction
[0009] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0010] Disclosed is a Cartesian leaf-shaped linear corrugated lateral straw clearing knife, which is mainly composed of a knife tooth fixed area 1, a knife tooth transition area 2, a knife tooth straw clearing area 3, and a knife tooth stubble cutting area 4. The knife tooth fixing area 1 is fixed to the rotating knife shaft through the 10mm diameter hole on it, and the hardness is HRC41±1 after quenching and tempering. The knife tooth transition zone 2 is the part connecting the knife tooth fixed zone 1 and the knife tooth stubble clearing zone 3. It needs good hardness and toughness. Quenching and tempering treatment HRC49±1. The knife tooth cleaning zone 3 and the knife tooth stubble cutting zone 4 need to be good. Excellent wear resistance quenching and tempering treatment HRC62±1. Sectional treatment of each zone has better comprehensive mechanic...
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The invention provides a Descartes leaf-shaped line type corrugated lateral straw cleaning cutter which is a critical component of a lateral straw cleaning and covering device, and belong to agricultural machinery. The Descartes leaf-shaped line type corrugated lateral straw cleaning cutter is mainly composed of a cutter tooth fixing area, a cutter tooth transition area, a cutter tooth straw cleaning area and a cutter tooth stubble cutting area; and segmental hardening and tempering of each area has a better integrated mechanical property. A cutting edge from the cutter tooth transition area to the cutter tooth stubble cutting area adopts a Descartes leaf-shaped cutter tooth front tangent plane curve of which a polar coordinate is R shown in the formula, wherein t equals to (0-90 degrees],[270-360 degrees), and the curve envelopes corrugated sidelong edges with various curvatures; the structure achieves the high-speed and non-twining transport of crop straw, sectioning, beating and transporting are carried out on crop stubbles to complete the unassociated removal of the crop straw, and a good seedbed environment is created for subsequent seeding operation.
Description
technical field [0001] The invention is a key component of a lateral straw clearing and straw covering device, which belongs to the field of agricultural machinery, and mainly relates to a Cartesian leaf-shaped linear corrugated side suitable for a lateral straw clearing and straw covering device in a no-tillage straw covering precision seeder. To clear the straw knife. Background technique [0002] The no-tillage and straw-covered precision seeder can perform no-tillage sowing on the original stubble land without any treatment after the crops are harvested. It mainly relies on the lateral straw clearing and straw covering device in front of the sowing and fertilizing device to complete the preparation of the seed bed. However, because the knife teeth of the key components of the lateral straw clearing and straw covering device are entangled with straw during the working process, the cleaning of the root stubble is serious. Defects such as non-abrasion-resistant cutter teet...
Claims
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Login to View More IPC IPC(8): A01B33/08A01B33/10A01B49/06
CPCA01B33/08A01B33/10A01B49/065
Inventor 侯守印陈海涛史乃煜张继成纪文义王业成
Owner NORTHEAST AGRICULTURAL UNIVERSITY