Combine seedbed preparation machine with depth-limiting function

Abstract

The invention relates to a combine seedbed preparation machine with a depth-limiting function. The machine comprises a traction frame and a machine frame. A notched rake piece set, a round-disc rake piece set, a travelling ground wheel, a grading bar, a soil crushing wheel and a pressing wheel are sequentially arranged on the machine frame from front to back. A depth-limiting device is arranged under the machine frame at a place between the notched rake piece set and the round-disc rake piece set. The depth-limiting device is composed of a traction rod, a balancing bar, an adjusting rod and a trace-eliminating grading bar. The upper parts of the traction rod, the balancing bar and the adjusting rod are sequentially connected to the machine frame from front to back. The trace-eliminating grading bar is arranged on the lower ends of the traction rod, the balancing bar and the adjusting rod. One end of the traction rod is hinged on the machine frame. According to the invention, through adjusting the depth-limiting device, the requirement on land flatness when thick mulches are used can be met.

Description

technical field [0001] The invention relates to a depth-limitable combined land leveling machine. Background technique [0002] At present, the existing land preparation machines are all composed of rake body beams, hangers on the beams, rake blade square shafts, rake blades, rake blade pipe clamps, bearing seats, bearing caps, bearings, bearing seats and oil seals in the bearing caps. , the raking depth of the rake blades cannot be adjusted during the operation. If the rake is too deep during the land preparation operation, the flatness of the land after the operation is not good, resulting in misplaced sowing and high void rate, and the existing film sowing is shallow. Sowing is simple, the germination rate after sowing is not ideal, and in order to avoid and reduce the pollution of the land caused by the use of film covering planting in the past, thick film covering planting that is easy to recycle is now used, and thick film covering planting is used. The flatness requi...

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Problems solved by technology

[0002] At present, the existing land preparation machines are all composed of rake body beams, hangers on the beams, rake blade square shafts, rake blades, rake blade pipe clamps, bearing seats, bearing caps, bearings, bearing seats and oil seals in the bearing caps. , the raking depth of the rake blades cannot be adjusted during the operation. If the rake is too deep during the land preparation operation, the flatness of the land after the operation is not good, resulting in misplaced sowing and high void rate, and the existing film sowing is shallow. Sowing is simple, the germination rate after sowing is not ideal, and in order to avoid and reduce the pollution of the land caused by the use of film covering planting in the past, thick film covering planting that is easy to recycle is now used, and thick film covering planting is used. The flatness requirements of the land are relatively high. When the rake blades of the soil preparation machine are inserted into the soil, the depth of the rake blades is particularly important. Since the depth of the existing soil preparation machine rake blades cannot be adjusted, the flatness of the land cannot be adjusted. If the requirements cannot be met, it will have adverse effects on planting with thick plastic film. The flatness of the land is not good, which will affect the germination rate of seeds after sowing, and cause seeding dislocation holes, which will affect the planting and harvesting yield of agricultural production.

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