| 摘要 |
agricultural engineering. SUBSTANCE: tillage tool has frame with connecting device and carrier wheels. Three rows of working tools formed as A-hoes and/or blade hoes and one row of needle-type disk batteries are arranged in sequence on frame. Front supporting platform is mounted on frame. Central reducer fixed on front supporting platform has input shaft connected through cardan shaft to independent of synchronous tractor power shaft. Interchangeable sprocket and safety coupling are mounted on reducer output shaft. Intermediate shaft carrying two interchangeable sprockets is mounted in bearings on rear supporting platform. Shaft carrying batteries of needle-type disks is also equipped with interchangeable sprocket. All of interchangeable sprockets are connected through chains to tension devices. Infinitely-variable V-belt transmission mechanisms may be used instead of chain transmissions. Such construction allows surface soil cultivation to be performed, difficult-to-remove perennial weeds to be intensively controlled, plant remains to be left on soil surface, optimum living conditions for useful soil microorganisms to be created and effective use of soil moisture and soil-derived nutrients to be provided. EFFECT: increased efficiency and improved crop yield. 1 dwg
|
