Title: Multi-section spiral line symmetrical arrangement mode of rotary tiller cutters on cutter shaft
Application Number: 93104894 Application Date: 1993.05.12
Publication Number: 1094884 Publication Date: 1994.11.16
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: A01B33/12
Applicant(s) Name: Songjiang Farm Implements Factory, Shanghai Address: 201601
Inventor(s) Name: Yuan Guishu, Ding Fulin
Attorney & Agent: FAN TIANNAN
Abstract:
     The present invention belongs to an agricultural soil-cultivating machine whose rotarytiller cutters are placed on its cutter shaft in the mode of multi-section helix symmetrical arrangement. Said invention uses the centre position of the cutter shaft as reference, and divides its whole tilling width into serveral sections, and each two adjacent sections can be used as one group, and each group consists of two helix symmetrically arranged rotary filling cutters which are respectively positioned in its left and right sides. When tilling the cut-broken earth lumps can be scattered leftwards and rightwards in the mode of multi-point so as to raise the levelness of tilled soil surface. If the leftward and rightward curved directions of the rotary tilling cutters of each group are regulated, the earth lumps can be left between two sections or its both outer sides, so that it can meet the requirements of "maintaining primitive groove and primitive ridge" or " dynamically ridge-forming".
Time: 27
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