The invention relates to the field of
agricultural machinery. The stubble cleaning, deep
scarification, crushing and mixing combined
soil preparation machine for the
saline-
alkali soil is provided. The stubble cleaning
machine mainly comprises a high-speed stubble cleaning part (1), a power
subsoiler part (2), a rack type crushing and mixing part (3), a rack (4), a three-point suspension device (5), a power
subsoiler part gearbox (6), a main gearbox (7), a
universal joint transmission shaft (8) and a stubble cleaning and crushing and mixing part
transmission system (9). The stubble cleaning part (1) is composed of two rows of stubble cleaning blades (104) rotating at a high speed,
straw can be fully smashed, meanwhile, the first row of blades
cut and preliminarily smash the
straw on the
earth surface, the second row of blades further smash the
straw and throw straw particles to the periphery, the small-particle straw can be fully mixed with soil more easily, straw
decomposition is promoted, and the stubble cleaning effect is better. The
soil organic matter content is increased; the power subsoiling
shovel part (2) can
cut and throw soil, compared with an existing
subsoiler, the subsoiling mechanism has the advantages that transverse
extrusion on the soil is smaller, the granular structure of the soil cannot be damaged, a plow pan is not prone to being formed, underground water can be conveniently sucked upwards in drought and permeated into water on the ground in waterlogging, and the performance of the subsoiling mechanism is better than that of a subsoiling plow. According to the rack type crushing and mixing part (3), a rack rotating at a high speed is matched with a spring, soil thrown in the air is rapidly beaten, the problems that soil hardening of the
saline-
alkali soil is serious, and soil blocks are not prone to being ground and crushed are solved, and pressing teeth can press straw particles into the soil and fully stir the straw particles, so that the straw particles are mixed more evenly; the compacting teeth can compact the soil after deep
scarification, and soil crushing, mixing, compacting, soil leveling and the like are completed.