Self-propelled operating machine

Abstract

The invention discloses a self-propelled operating machine (100), comprising: a first shaft (100) equipped with a wheel (120); a second shaft (105) equipped with a wheel (125); a support structure (105) extending longitudinally from the first shaft (110) to the second shaft (115); an internal combustion engine (130); and a gearbox (135) adapted to transmit torque from the internal combustion engine (130) to at least the wheels (120) of the first shaft (110), where the internal combustion engine (130) and the gearbox (135) are arranged closer to the first shaft (110) than the second shaft (135).

Description

technical field [0001] The present invention relates to self-propelled operating machines, i.e. vehicles of a special type which are adapted to be controlled by a drive and which are capable of performing relevant operations typically but not exclusively of the mechanical type, for example in the field of industry, construction, road or agriculture, and which utilize Work produced by an engine, such as an electric motor, heat engine, hydraulic engine, or other engine, that is installed on such a machine and that is also often used to provide the driving force necessary for motion. Examples of such self-propelled operating machines may be excavators, roadworks machines, construction machines, and agricultural machines including, in particular, farm tractors, large agricultural machines used in open fields and in specialized applications such as vineyards or Small agricultural machinery used in orchards). Background technique [0002] A typical structural layout of known self...

AI Technical Summary

Problems solved by technology

[0007] A first disadvantage consists in the fact that the protective cover of the internal combustion engine is arranged at the front of the operating machine and in front of the driver's cab, which is particularly large and long due to the size of the internal combustion engine and the position of the suspension, The driver's field of view is thus obstructed, and the driver often cannot see the tools or accessories engaged with the front PTO, which greatly limits the driver's control over the various work steps

[0008] Due to the presence of fuel tanks for internal combustion engines, such fuel tanks are generally of standard shape (square and bulky) and are usually placed inside or sometimes outside of protective covers, which increases the operating effort of the machine. This disadvantage is sometimes exacerbated by overall bulk and further restricting the driver's field of vision

[0009] In particular, the fuel tank is sometimes located at the front of the operating machine so that it obstructs the driver's view when moving forward, and when the fuel tank is located at the rear it obstructs the driver's view when reversing

[0010] A second disadvantage consists in the fact that the position of the internal combustion engine and the corresponding protective cover at the front axle greatly limits the steering angle that can be offered to the steered wheels, since the wheels may touch part of the engine or cover, with the result that The minimum turning radius of current operating machines (particularly agricultural tractors) is often very wide, which makes it sometimes very difficult to maneuver in tight spaces such as along rows of vineyards or orchards, in factories or similar environments

[0012] However, it is clear that these solutions are fundamentally complex with respect to the structure and its operational control, and thus also inevitably increase the cost

[0013] Other disadvantages of this conventional layout of operating machines include that the kinematic connection of the internal combustion engine arranged at the front axle with the gearbox arranged at the rear axle has to be obtained via a long drive shaft which extends along the entire support structure and usually through the cab

[0014] This leads to the need to enclose the drive shaft in a protective central channel, which however raises the support structure layer and extends longitudinally past the cab, which limits the freedom of seating and controls to operate the machine, and also reduces the available space for occupants and thus reduced comfort

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