Knife for lawn mower rotary and spindle type

More and more townspeople buy a dacha not in order to grow potatoes on it, but for recreation. Therefore, planting only a few bushes of roses or lilies and a small group of birch and pine trees, they strive to surround all this splendor with a real fragrant lawn for the sake of cleanliness and impeccable appearance which invented all the best lawn mowers in the world.

Today they are produced by at least thirty famous companies, supplying to the market two hundred and thirty of their modifications. Each of them has its own purpose, for example, lawnmowers "Honda" are needed for the device of huge areas. Small hand models perfectly cope with the cutting of wet grass on an even and well-groomed grass cover. Absolutely other systems are designed to cut the overgrown weeds and rooting grass on the site where the owners appear infrequently.

A knife for a lawnmower is a principal working unit. Depending on the type of grass cutting system, this type of equipment is classified into spindle and rotary mechanisms. In one case, the lawnmower knife is mounted on a cylindrical drum, in the second - on a vertically located shaft.

In rotary models, a two-blade knife for a lawnmower is used, although there are four-blade machines. During the rotation of the shaft, a powerful air flow is created. It captures the remains of mown grass from the blades of the knife and draws them into a special container or sprayed on the lawn, thereby cleaning the mechanism and preventing its clogging.

Some manufacturers have improved the cutting mechanism by making the lawnmower knife deviate from the axis at the time it touches the hummock or stone. As a result, it becomes more protected and less dull. The blunt knife needs to be dismantled, sharpened, and then, having established in place, it is necessary to make balancing. It consists in creating an equilibrium state for each of its sides or wings in a horizontal position. If you neglect this, then in the mechanism during operation, there are so high vibrations that malfunction of the lawn mower can occur.

Some more expensive models relieve the owner of these troubles. Their developers decided to install knives on the cross or bar. This makes it easy to change one of them or to perform an alternate sharpening. There are also models in which knives are installed on couplings. They provide for two options. In one coupler is a cushioning soft material that simply collapses when colliding with an obstacle and thereby saves the knife. In the other clutch works in automatic mode. It is able to simply turn off the cutting mechanism when an obstacle appears, and its adjustment can be adjusted by the operator operating the lawn mower.

Movable and fixed knives provide spindle models of lawn mowers. The drum on which they are mounted rotates. At the same time, the movable knife grasps the grass and feeds it to the stationary blade. They qualitatively process the lawn, but their productivity is very low.