Front-mounted furrow-opening machine

Abstract

The invention is a novel preposed ditcher, including a frame arm and cutter disc mounted on the frame on the front frame of a hand tractor, pulley, and gear box, where the center of the cutter is lower than the front frame of the hand tractor. The frame arm is inclined downward or bent in the middle, thus shortening the distance between the ditcher and the hand tractor and reducing the front gravity moment; also reducing the height of the cutter disc, thus reducing the dip angle of the hand tractor while the ditcher is working. It has a novel, reasonable, simple structure, easy to produce and manufacture, especially reducing labor strength, increasing the linearity and operating efficiency, beneficial to prolonging the service life of a diesel engine and having an extremely great value in spreading and practicing and a wide marketing prospect.

Description

technical field [0001] The invention relates to a structure of a ditching machine used for farmland operations, and belongs to the technical field of agricultural machinery. Background technique [0002] The existing front-mounted ditching machine is composed of a frame assembly composed of a cutter head, a pulley, a gear box, etc. installed on the frame arm, and is connected to the front frame of the walking tractor through the frame arm. The arm is basically level with the frame of the walking tractor, and the center of the cutterhead is also basically level with the front frame of the walking tractor, that is, the height from the ground is basically the same; due to the limitation of the radius of the cutterhead, the frame arm cannot be very Short, with the walking wheels of the walking tractor as the fulcrum, the frame arm is longer, so the front gravity distance is larger. And because the center of the cutterhead is basically level with the frame arm, and the distance ...

AI Technical Summary

Problems solved by technology

When this kind of ditching machine is used for ditching operations, because the handle at the tail of the tractor is lifted too high, its height is much higher than the shoulders of a general medium-sized operator, and the operator is limited by factors such as height and weight. The linearity of the ditching machine, or the lifting and lowering of the ditching machine are all difficult to operate; it has been proved by practice that it takes about 100 kilograms of force to press the tractor from the forward-leaning working state to the rear landing, and vice versa. In order to control the cutter head of the ditching machine to enter the soil slowly, otherwise the machine will be damaged, so the operator must press the back of the tractor with a counterweight of about 50 kg to operate smoothly; It has become a big problem that has not been solved for many years in the use of trenchers

The matching diesel engine on the existing walking tractor is generally a horizontal cylinder type, which is not conducive to fully exerting the power of the diesel engine when it is working in a tilted state; the cooling water of the water tank above the diesel engine overflows when it is excessively tilted, and the diesel engine is easily affected; The fuel tank of the tractor is set on the front side above the water tank, and the oil supply pipe of the engine is set behind the fuel tank. When the diesel engine is working with too low an inclination, especially when there is little or no oil, it is easy to cause the engine to lose oil and stall, and even cause Accidents such as machine damage

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