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 discloses a longitudinal axial flow drum, which belongs to the technical field of combine harvester threshing and separation devices, and comprises a drum body, a drum front shaft, a power input shaft, a drum front bracket and a drum rear bracket, and the drum body includes a feeding part and a drum The body, the anti-winding element is provided between the front support of the roller and the feeding part, and the anti-winding element includes: a material guide crescent and a wedge-shaped roller front cover fixed on the front support of the roller, and the material guide crescent includes Disc and material guide plate, one end of the disc is fixedly installed on the front support of the drum, and the other end has an opening; the disc passes through the installation hole of the front cover of the drum; it is fixed on the front of the drum The front cover cover of the drum on the cover; the front protrusion of the drum fixed on the front end face of the feeding part, and the front protrusion of the drum is located in the opening. During the harvesting operation, the front axle of the drum is not easy to entangle the grass, and the working efficiency is high, which realizes the simultaneous harvesting of various crops, and does not need to replace the drum, which meets the user's profit demand.

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.

The invention discloses a bridge crossing driving shaft structure of a combine harvester, which belongs to the technical field of combine harvesters, and comprises a bridge crossing driving shaft, the bridge crossing driving shaft is rotatably mounted on the bridge crossing housing of the combine harvester, and A plurality of bridge drive shaft sprockets are mounted on the bridge drive shaft inside the bridge housing, and a bridge inner support is fixedly installed in the bridge housing near the position of the bridge drive shaft. A number of grass cutters are fixedly installed on the inner support of the bridge to prevent the driving shaft of the bridge from being entangled with grass. An opening is arranged at the middle position of the grass cutter, and the opening is aligned with the sprocket of the driving shaft of the bridge. One to one correspondence. The invention also discloses a bridge crossing device for a combine harvester. The invention avoids the weeding of the driving shaft of the bridge, and the user does not need to stop frequently for cleaning, which improves the working efficiency and avoids early wear or damage of machine parts caused by untimely cleaning.