Multi-blade high-speed rear-mounted ditching machine

Abstract

The invention discloses a multi-blade high-speed rear-mounted ditching machine, which comprises a rack (including a rack longitudinal beam and a rack front crossbeam), a gearbox, a driving shaft, a universal joint telescopic shaft, a cutter assembly, blades, and a dirt distributor assembly (including the upper dirt distributor plate and the lower substrate). The number of blades on the cutter assembly is increased to no less than 12 dirt cutting blades and no less than 8 rock cutting blades, no less than 20 blades in total; at the same time, the cutter rotation speed is raised about 1.5 times.Protective plates are arranged in front of the rack front crossbeam. A fence is arranged over the rear of the cutter. The multi-blade high-speed rear-mounted ditching machine solves the problems of dirt blocks throwing near, serious blockage of wet rotten field, large cutting resistance of blade and aggravating engine load, and has the advantages that the easily piled up dirt and the residual soil in the ditch are eliminated and reduced, and the operation of ditch operation is safe and reliable.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a multi-blade high-speed rear-mounted ditching machine. Background technique [0002] Existing rear-mounted ditchers matched with four-wheel tractors with 50-100 kW power, commonly known as large and medium-sized ditchers, generally weigh about 300 kg, and the cutterhead speed of the ditcher is about 260 revolutions per minute or less; It has been produced and used for more than 30 years, and has basically remained unchanged so far. Its basic structure is as follows: [0003] Take the forward direction of the tractor as the front, and the ditcher is installed in the middle of the rear of the tractor. The observer stands at the rear of the tractor and the ditcher facing the ditcher to observe its overall structural layout: the frame of the ditcher is composed of two left and right A rectangular overall frame structure composed of longitudinal beams and ...

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a multi-blade high-speed rear-mounted ditching machine, which will solve the problem that the soil clods cut out by the existing ditching machine are thick and not finely divided, cannot be evenly scattered, and cannot completely fill the gaps on the surface of the previous rotary tillage soil layer; The block is not far away, the wet and rotten field is seriously blocked, the cutting resistance of the blade is large, and the load on the engine is increased; eliminate the soil ridges that are easy to accumulate at the edge of the ditch, and there is a lot of residual soil in the ditch, which hinders the flow of surface water into the ditch and is not conducive to drainage; At the same time, it solves a series of problems such as bulky, heavy, inconvenient transportation, disassembly and maintenance, and heavy pressure on the ground caused by the tractor's rear walking wheels, which causes dry soil to be compacted, and wet and rotten fields are easy to sink, resulting in a large load on the tractor. Shortcomings

The optimization scheme can also solve the problem of not being able to fully cover and protect the sown seeds from severe cold and frostbite in winter, which is not conducive to the growth of overwintering crops such as wheat and rapeseed, thereby affecting the yield

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