50results about How to "Prevent weed" patented technology

The invention discloses a blade-type straw collecting device, which belongs to the field of the agriculture machine. A blade-type grass catcher is installed inside a bale channel wall through a shaft sleeve, and a grass catcher shaft is installed on a bale stander through an outer spherical ball bearing, a bearing pin and a stop nut; and the bale stander is connected with other operation machine standers through a connector. The straw which is transmitted by a conveyer can be directly concentrated in the middle part of the bale channel, two sides of a bale plunger can be prevented from being plugged by straw, the straw is free from being fed by an external shifting fork, the straw can be directly operated, the operation procedures are fewer, the structure is simple, and the energy consumption is less; and moreover, the bale machine is matched with other devices to use, so sufficient space and technical support are provided, the landing times of the machine and the compression of the soil can be reduced, and the requirement of the best planting day can be further satisfied.

The invention discloses a cutting device. The cutting device comprises a turnplate, and a plurality of cutting blades which are circumferentially mounted at different phases of the turnplate, wherein the cutting blades are arranged in at least two different cutting planes in the axial direction of the turnplate; flanges capable of causing a downward airflow are arranged on free end parts of the cutting blades in the topmost cutting plane. When the cutting blades rotate for mowing, the downward airflow is formed at the flanges, and mown grass can be downwardly pressed to prevent blockage of grass at the front end, so that the cutting device has a relatively high cutting efficiency. The mower with the cutting device also is relatively high in efficiency.

The invention provides a seeder with a seedling strip cleaner. The seeder comprises a frame, furrow openers as well as a seedling box, a fertilizer box, seed-metering devices, fertilizer apparatuses, plow poles, ground wheels and roller sealers which are arranged on the frame, wherein the plow poles are all hollow; each furrow opener is fixed at the bottom of the frame by the plow pole; the plow poles extend into the lower ends in the furrow openers so as to serve as fertilizer discharge outlets; the upper ends of the plow poles are communicated with the fertilizer box by the fertilizer apparatuses; and the seed-metering devices which are communicated with the seed box are positioned above the rear ends of the furrow openers. The seeder is characterized in that: the bottom surfaces of thefurrow openers are raised in a ladder shape from front to back along the travelling direction; both sides, which are positioned between the fertilizer discharge outlets and the seed-metering devices,of the furrow openers are provided with scrapers; the seedling strip cleaner is arranged at the front ends of the furrow openers; the seeder comprises two axle bases which are suspended on the frame,a rotary knife shaft of which a horizontal bearing is arranged between the two axle bases, a power transmission mechanism and pairs of rotary knives which are arranged on the rotary knife shaft; eachpair of rotary knives are symmetrically arranged at an angle of 180 degrees; and one furrow opener is arranged right behind each pair of rotary knives. The seeder has a simple structure and excellentworking performance.