Mechanical device for shoveling and raking residual mulching films on farmland and using method of mechanical device

Abstract

The invention discloses a mechanical device for shoveling and raking residual mulching films on farmland and a using method of the mechanical device. The mechanical device comprises a film peeler transverse beam, a three-point hanger, a big support arm, a plurality of film peeler front-back shovels and a film raking finger plate, wherein a lower beam of the three-point hanger is additionally provided with the film peeler transverse beam; the plurality of film peeler front-back shovels are hung on the film peeler transverse beam in a staggered way; and the film raking finger plate with uniform finger plate elastic teeth is arranged on a shaft head of a small support arm of a film raker. A film peeler does linear movement under the traction of a tractor, the film raking finger plate does rotating movement by virtue of friction force with a ground, and the rubbish in the shallow layer of the farmland can be poked and raked together by the finger plate elastic teeth when the finger plate is passively rotated. The mechanical device for shoveling and raking the residual mulching films on the farmland is high in residual mulching film raking efficiency and over one hectare of rubbish can be raked per hour with 50 horsepower; the cover earth and stubbles on the surface layer can be completely shoveled to loose by the film peeler; an existing linear pulling mode is changed to a rotary poking mode of the finger plate elastic teeth, the residual films are unlikely to be pulled to be broken, the movement resistance is small, the damage to the farmland is small, and the films and the rubbish are raked to strips, thereby being easy to pick and mechanically packaged to transport.

Description

technical field [0001] The invention belongs to the technical field of controlling white pollution of farmland residual film, and relates to a mechanized recovery technology of residual film, more specifically, a mechanical device and a use method for shoveling residual farmland film. Background technique [0002] More than 30 years ago, mulching technology began to be applied in my country. Due to its great contribution to agriculture, its rapid development, and its application area and scope are getting larger and larger, especially with the application of agricultural mulch film on field crops, the residual mulch film pollution has begun to attract the attention of scientific researchers. Residual film fragments that are not easy to degrade seriously pollute the land. Since the residual pollution of plastic film is a new type of pollution, in the early stage of the application of plastic film covering technology, people pay more attention to the effect of increasing tempe...

AI Technical Summary

Problems solved by technology

After 3 years, no matter plowing or rotary plowing, the accumulation of residual film will seriously affect the sowing and emergence of crops, resulting in a reduction in crop yield. Usually, small plots are manually piled up with iron rakes and burned, and large plots are covered with finger-disc rakes, but about 30~40% of the soil-covered film and the broken film cannot be picked up, and residual film deposits will still occur in the follow-up, and the fingers are easy to break; use a T-shaped rake (an iron rake that is pulled and enlarged by a tractor) to form a pile

The above method of collecting residual film has low efficiency and poor effect

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