The working principle of the lawn mower
Rely on the cutter on the knife and set the relative shear movement cutting grass. It is characterized by stubble neat, the unit cut the required power less; but the different growth status of pasture is poor, easy to plug. Suitable for flat natural grassland and general yield of artificial grassland. Since the cutter is vibrated at the time of operation, the operating speed is increased. Moving knife cutting speed is generally less than 3 m / s, operating speed is generally 6 to 8 km / h.
Cut off the grass or other can be made of hay crops, and put it on the ground forage harvesting machinery. There are two types of reciprocating and rotary.
Simple structure, light and flexible. There are three kinds of front suspension, side suspension and rear suspension, after the most widely used hanging mower. Reciprocating mowers are made up of main components such as cutters, cutter actuators, cutter lifting devices, safety devices and shelters. The working principle and construction of the cutter is basically the same as that of the grain harvesting machine
Cutter lifting device is generally controlled by the hydraulic system, to enhance the rapid and convenient, to ensure that the cutter on the complex ground adaptability. The safety device is mainly to ensure the safety of the transmission and the cutter. On the high speed of the lawn mower, the general use of decoupling safety devices. When the cutter resistance is too large, the safety device is automatically decoupled, the cutter swing back, while cutting off the power of the cutter
The blades used are light and notched. Generally use light blade moving blade. The knife drive is also similar to a grain harvester, using a biased crank link mechanism and a pendulum mechanism. Due to the high growth density of pasture, high water content, the average speed of the knife is higher than the grain harvester, usually 1.6 ~ 2.0 m / s.
