The invention relates to an integrated
machine for in-situ hole digging, material mixing and backfilling and a working method of the integrated
machine for the in-situ hole digging, material mixing and backfilling. The integrated
machine comprises a power
system, a
drill bit lifting device, a walking device and an operation device; the power
system comprises an engine and a
reducer; the
drill bit lifting device comprises lifting hand wheel, a lifting
reducer, a linear guide rail, a lifting frame, a chain wheel and a chain; the walking device comprises a supporting rear wheel and a supporting front wheel; the operation device comprises a
drill bit, a sleeve rack, an upper sleeve, a lower sleeve, a
discharge port baffle plate and a
discharge pipeline; the invention puts forward an
integrated design of in-situ hole digging, material mixing and backfilling for
fruit tree planting to realize mechanized
fruit tree planting process, the integrated machine for the in-situ hole digging, material mixing and backfilling is reasonable in structural design, low in cost, convenient to operate and use, high in efficiency of hole digging, material mixing and backfilling, and low in labor intensity. A hole digging and material mixing
composite structure of the single-blade double-
diameter drill bit and a lifting material mixing cavity is innovated, and performs hole digging and material mixing simultaneously, and further is high in efficiency and mixing uniformity of
fertilizer, microorganisms and soil.