Rear left-side type ditcher

Abstract

The invention discloses a rear left-side type ditcher. The rear left-side type ditcher comprises an L-shaped machine frame and a vertical column, wherein the L-shaped machine frame is connected to a hooking frame at the rear portion of a tractor; the machine frame is provided with a gearbox located on the left side of the rear portion of the tractor; an output spline shaft of the gearbox is driven by a power mechanism of the tractor; the spline shaft is provided with a roller cutterhead; a plurality of blades are evenly distributed on the periphery of the roller cutterhead; the vertical column capable of being adjusted vertically is arranged on and connected to the machine frame; a straightening board shaft is fixedly arranged on the side portion of the vertical column in parallel; a horizontal bottom board is fixedly arranged at the bottom of the vertical column; the front end of a straightening board is hinged to the straightening board shaft; an adjusting bolt for limiting the rotation of the straightening board is connected between the bottom board and the straightening board. The rear left-side type ditcher improves the safety, prevents soil from being sucked into an air inlet of an engine and can ditch on the ridge edge, and as the machine frame is provided with a straightening device, the tractor is prevented from deviating according to the mechanics principle scientifically.

Description

Technical field: [0001] The invention relates to a rear-mounted left-side ditching machine. Background technique: [0002] Most of the existing small trenchers are installed on the walking tractor. When the tractor advances, the rotary blades on the trencher will open the ditch in the field. The existing trenchers have two types: front-mounted and rear-mounted. The so-called front type is to install the trencher in front of the tractor. The soil it excavates is smooth and the trench shape is good. But the problem is that since the engine of the tractor is located in front of the wheel axle, it is heavy in the front and light in the back. If the trencher is installed in front of the engine, the front of the tractor will be too heavy, and it is necessary to increase the counterweight behind the axle, which will greatly increase the tractor’s own weight, and will inevitably increase the load of the machine and increase energy consumption. In addition, there is no dedicated fron...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing small trenchers are installed on the walking tractor. When the tractor advances, the rotary blades on the trencher will open the ditch in the field. The existing trenchers have two types: front-mounted and rear-mounted. The so-called front type is to install the trencher in front of the tractor. The soil it excavates is smooth and the trench shape is good. But the problem is that since the engine of the tractor is located in front of the wheel axle, it is heavy in the front and light in the back. If the trencher is installed in front of the engine, the front of the tractor will be too heavy, and it is necessary to increase the counterweight behind the axle, which will greatly increase the tractor’s own weight, and will inevitably increase the load of the machine and increase energy consumption. In addition, there is no dedicated front of the engine. The connection parts of the trencher make it troublesome to install and difficult to operate. It is even more difficult to use when the soil is wet. It is not suitable for small horsepower walking tractors.

The rear-mounted ditcher, as the name implies, is to install the ditcher behind the engine, so that the engine and the ditcher are located at the front and back of the wheel axle, and the center of gravity is stable. When the blade is ditching, it excavates to the rear and both sides. The soil thrown back makes the operator covered all over. The soil thrown to the right easily enters the air intake of the engine, causing damage to the engine. In addition, the rear is centered The blade of the ditching machine is very close to the operator, which is easy to cause injury, and there is a big safety hazard. Moreover, because the ditching machine is in the center, it is impossible to ditch the four sides of the field near the ridge

There are also people who try to set the trencher on the rear side of the tractor, but because the rotary blades need to apply a lot of force to the soil during ditching, the ditch can be opened in the field, so the blades on the side of the tractor will also The tractor does not go in a straight line due to a large reaction force, but to make the trencher open a straight ditch, the operator must exert a large lateral force on the handlebar of the tractor to overcome the reaction force it receives, resulting in work greatly increased strength

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