Mini-tiller driven by engine provided with miniature propane fuel tank and tank extruding method

Abstract

The invention provides a mini-tiller driven by an engine provided with a miniature propane fuel tank and a tank extruding method. The mini-tiller driven by a four-stroke engine provided with the miniature propane fuel tank comprises the four-stroke engine provided with the miniature propane fuel tank and a rotary tiller provided with a plurality of safety measures, wherein an upper safety follow-up protection plate, a rear safety follow-up protection plate, a left safety protection rack and a right safety protection rank are arranged to reduce mud adhesion and to cut winding grass, foldable and push-and-fasten type double acting safety protection measures are adopted, and movable protection plates are detachable to lower transportation cost. According to the mini-tiller driven by the engine provided with the miniature propane fuel tank provided in the invention, noise and emission are reduced; as fuel gas is employed, emission of oxynitride is decreased, toxicity of harmful emission based on fuel gas is lower than that based on gasoline, and aromatic hydrocarbon and like harmful components can seldom be found in emission; as fuel gas cannot form an oil film on a wall face of a gas inlet pipeline and cannot be concentrated at a cold state like gasoline, emission of such a fuel gas-based engine is superior to that of a gasoline engine within 40 seconds from the start and during the engine heating process; safety of the entire mini-tiller is good; the fuel tank is easy to replace. The tank extruding method comprises the step of introducing and extruding high-pressure oil with pressure difference at the front part of a prefabricated tank and at the rear part of the prefabricated tank in a prefabricated pipe of a forming die.

Description

technical field [0001] The invention relates to an agricultural and animal husbandry machine, which belongs to the technical field of rotary tillers, in particular to a rotary tiller with multiple safety measures, a micro tiller with an engine equipped with a miniature propane fuel tank, and a can extrusion method. Background technique [0002] Food is the most important thing for the people; in farming, the more important labor is plowing the fields. The traditional employment of people or cattle as the main labor is not only labor-intensive, but also extremely inefficient. For land, especially for hills and mountainous areas, the continuous development and improvement of various rotary tillers plays an important role in reducing the labor intensity of farmers and improving efficiency. Rotary cultivators are widely used in the mode of sometimes self-propelled sometimes not self-propelled by people's preferences to carry out operations. In recent years, with the rapid devel...

AI Technical Summary

Problems solved by technology

But, first of all, the starting handle of the existing rotary tiller, also known as the flameout handle, is opened when held, and there is no misuse protection measure. When the starting handle is accidentally pressed, the rotary knife will rotate, which does not meet the safety requirements high requirements

Secondly, the fender device of the existing rotary cultivator generally just simply arranges the fender on the top of the rotary tiller, and the fender is fixed on the body, and there are obvious deficiencies in the use process: one is because the fender Only cover the top of the rotary tiller, the dust is flying when the rotary tiller is working, the dust is large, and the working environment is poor, which directly affects the health of the operator. The third is that it is easy to stick to mud. Because the fenders of various rotary tillers are made of metal plates, the extruded soil is mixed with grass roots and sticks to the fenders firmly. Strong friction occurs, which increases power consumption and accelerates the wear of the rotary tiller. The sticky clay on the fender needs to be scraped off manually with a tool shovel, which is time-consuming and laborious and affects the efficacy. One of the reasons is that the fender It is fixed, and there are no solutions such as movable or follow-up upper fenders and movable rear fenders; the fenders are fixed, and there is a special case, which is fixed during rotary tillage operations, only It is easy to install and replace. For example, utility model 200920244006.8, a rotary tiller with an openable top cover, which consists of: the main body of the rotary tiller, which is characterized in that: the upper cover of the main body of the rotary tiller includes a The connected movable upper cover plate has a lock on the upper cover plate; the upper cover plate is fixed during operation, which is the same as the movable and follow-up upper fender and the movable rear fender during operation of the present invention. There are essential differences in solutions such as fenders and left and right protection

Fourth, it is easy to get entangled with grass during rotary tillage, that is because the fenders of various rotary tillers have no cutting edge measures

The fuel used in the gasoline engine is gasoline; the gasoline and air are used to form a combustible mixture before entering the cylinder with an air filter and a carburetor; according to the four-stroke inlet pressure explosion, the combustible mixture enters the cylinder and is compressed. Near the end of the compression, the gas is ignited and burns to expand and do work. The gasoline engine enters the cylinder with combustible mixture, and the compressed mixture is also combustible. Because gasoline and air form a combustible mixture, because the excess fuel enters the cylinder, it can only become mist in an instant. The phenomenon that part of the fuel has not been completely burned, so the fuel consumption and exhaust pollute the environment

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