Mower selection
Large-scale commercial weed production should choose mowers with rubber rollers. This is because weeds have thick stems and many leaves. When the field is naturally dried, the drying speed of the leaves is much faster than that of the stalks. When the water content of stems meets the baling requirements, the nutrient-rich flowers and leaves have already fallen off. Mower conditioner can squash or squash the grass stalks without damaging the leaves to accelerate the evaporation of moisture in the stalks and promote the drying of the stems and leaves. The drying time can be shortened by 30% to 50%. The structure of the mower conditioner is mainly composed of a header, a squeezing roller and the like. During the work, the forage is cut into a roller and then crushed and then laid into a straw. Currently imported from abroad and used in China at a large amount are:
The 472 type, 488 type, 499 type, and 1465 type mower conditioners produced by the New Holland company in the United States generally have a cut width of 2.2 to 3.7 meters and a working efficiency of 15 to 25 acres per hour, requiring a power of 50 hp. 80 horsepower, more domestic use of 488 mower flattening machine.
The 710, 720, and 820 type mower conditioners produced by John Deere Company have a cutting width of 3 to 4.5 meters and a working efficiency of 15 to 22 acres per hour. The required power varies from 50 horsepower to 80 horsepower. . At present, the domestic sales are more domestically produced in the Deere - Jia Lian cut range of 3 meters of 725 type mower flattening machine.
The FC202R, FC250RG, and FC302RG lawn mowers produced by KUHN (Kuhn), France, usually have a cut width of 2 to 3 meters, a working efficiency of 20 to 45 acres, and a required power of 60 to 90 horsepower. The first two models are used in larger quantities. It is proved through practical application that the disc mower has low maintenance cost and high work efficiency. Under the same cutting conditions, the disc mower is more efficient than the reciprocating mower. Hours work more than 5 acres ~ 10 acres. From a worldwide perspective, disc mowers will eventually replace reciprocating mowers.
Mower selection
The rake is an integrated barn for pasture that is placed on the ground after cutting to facilitate stacking, picking, and baling to improve the efficiency of baling. At the same time, in the process of barnyardgrass, it serves the purpose of turning grass in different degrees to facilitate the forage grass. Dry as soon as possible. The current domestic applications are:
New Holland Company produces a fence type 256 rake with a working width of 2.5 meters. This grass rake can integrate grass at one time, reducing the damage to the blades due to multiple transmissions, but the work efficiency is low, and the average hourly efficiency is 30 acres or so.
The 702 type mower produced by the John Deere Company of the United States is driven by a ground wheel and has high working efficiency. The working width is adjustable from 4 meters to 6 meters and it is about 45 acres per hour, but its structural design makes the pasture grass During the process, a plurality of tooth extractions are carried out, so the loss rate of the blade is high. In addition, it is limited by the drive of the ground wheel. When the ground is uneven or the traveling speed is slow, the grasshopper is not clean.
The French company KUHN (Kuhn) is the world's largest manufacturer of vertical shaft swather rakes. Its GA4121GM rakes have a working width ranging from 3.8 meters to 4.3 meters. They are driven by drive shafts and the grass collection process is completed once. The hourly productivity is about 45 mu. Overcoming the shortcomings of the above two types of rakes, such as low efficiency and large loss, have been well received by users.
The choice of balers
After the pasture is dried to a certain extent, it is necessary to use a baler to compress the bales into bales in order to facilitate transportation and storage. At present, domestic use of small square bales for picking and baling machines is mainly used. When the baler is in operation, the tractor pulls the baler forward along the grass, picks up the draft of the picker, and continuously feeds the grass into the baling chamber from the feeder's fork, and then feeds it through the reciprocating movement of the piston. The incoming grass is compressed into bundles. According to the length of the set bales, the knotter automatically binds the bale ropes to the bales and puts them on the ground through the bale outside the bale. The bale is currently used for the large area. Balers mainly include:
The 565 and 570 balers produced by the New Holland company. The pick-up width is 1.65 meters and 1.7 meters. The knotter is deadlocked and knotted. The piston is 79 times per minute and the double puller is used for feeding. The fastest efficiency per minute can bale 145 kg (about 8 bundles) of hay. However, because of the structure of the knotter, the rope heads are left on the bundles after each bundle is finished, and due to the complicated structure, the knotter has a higher failure rate.
The 338-type and 348-type balers produced by the John Deere Company of the United States have a pick-up width of 1.6 meters and 1.7 meters. The knotter is also a deadlock, the piston is 80 times per minute, and the cage and puller are used to feed together. In this form, the highest efficiency per minute can be used to bale 125 kilograms (about 7 bales) of hay. In addition to the defects of the New Holland baler in the knotter, this type of equipment also causes excessive loss of grass blades due to the feeding of the cage. , And in the case of wet grass, it is easy to cause congestion.
The MARKANT55 and MARKANT65 balers produced by Klass, Germany, have a pick-up width of 1.65 meters and 1.85 meters. The knotter is a patented product of the company in 1921. It is knotted with a live button and has a simple and reliable structural design. The piston runs 93 times per minute, using the double-forked three-tooth feed mode. The maximum efficiency per minute can be used to bale 180 kg (approx. 10 bales) of hay. The internal transmission of the equipment is to remove the fork part of the chain drive. All gear transmission, more robust and reliable than other equipment. However, this equipment has many lubrication points, and maintenance is more careful than other equipment.
The choice of green machine
Silage is an ideal feed for livestock such as dairy cows, beef cattle and sheep, and harvesting machinery is an important part of this development process. Currently there are three methods for making silage: manual operations, semi-mechanized operations, and mechanized operations. Mechanized operations are harvested, chopped, collected by silage harvesters in the field, transported by feed trailers, compacted with tractors, and manually sealed. According to data, semi-mechanized operations (cutting with motorized rakes, compacting with tractors, manual cellaring, and other labor) are five times more productive than manual operations, and mechanical operations are four times more efficient than semi-mechanized operations. The operating cost is just the opposite. The cost ratio for manual, semi-mechanized, and mechanized operations is 1:0.75:0.45. Regardless of the quality of the product after the operation, the mechanized operation in the process of making silage has the advantages of high efficiency and lowest cost. .
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