Corn thresher manufacturers portable
It is divided into two types: side-mounted and backpack-type:
① The side-hanging automatic harvester adopts hard shaft transmission, which is mainly composed of engine, transmission system, clutch, working parts, operating device and side-hanging belt. A single-cylinder two-stroke air-cooled gasoline engine of 0.75 to 2 kW and a centrifugal friction clutch are arranged at one end of the transmission shaft; a working part composed of a reducer and a cutting tool is installed at the other end. There are many types of working parts, usually circular saw blades, blades or nylon wires. During operation, the hook and loop on the aluminum alloy sleeve of the transmission shaft is hung on the strap under the operator's shoulder, the handle is held, and the hard shaft is swung horizontally to complete the weed and shrub cutting operations. The weight of the machine is about 6-12 kilograms, and the speed is about 4500-5000 rpm.
② Backpack automatic harvester. Driven by a flexible shaft, the general structure is similar to a side-mounted brush cutter, except that the engine is carried on the operator's back, and the cutting parts are driven by a flexible shaft. The engine power is generally 0.75 to 1.2 kilowatts. The engine and the back frame are connected at two points and equipped with special rubber parts to isolate vibration. The flexible shaft is a flexible steel wire shaft enclosed in a hose to transmit torque. The hose is a threaded tube wrapped with a steel strip wrapped by a metal braided net with a rubber protective sleeve to prevent dust and dirt from entering the shaft and maintaining the lubricating oil on the shaft surface. The cutting width is generally between 1.5 and 2 meters.
Walk-behind
The weight of the implement is supported by the walking wheels, the machine is pushed forward by a person, and the working part is driven by the engine to perform the cutting and filling operation. Its structure and working principle are similar to portable brush cutters.
hanging
Hanging behind the tractor, the working parts are driven by the power output shaft to rotate, suitable for large-area cutting and irrigation operations. It is mainly composed of frame, saw blade, transmission device, suspension device and push plate. During cutting and irrigation, the tractor runs backward, the working speed is 5 km / h, and it can saw shrubs with a diameter of 10 cm.
