Arrangement introduced for automatic protection against operational failures in an agricultural implement for mixture and/or distribution of a solid product, having variable granulometry of the mixer type implement and/or distributor

Abstract

The present invention belongs to the field of machines and agricultural implements, more concretely agricultural implements for the mixture and/or distribution of a solid product having variable granulometry, such as, for example, silage, crumbs, clusters, in powder, among others, such as feedstuff and mineral supplements. Moreover, the present invention brings as main advantage, relative to the implements known to the state of the art, the fact that it has a torque limiting means over the movable parts, such as helical pitch threads, augers and/or beater arms, so that there is no overload in the hydraulic system of the implement that is operatively associated to the tractor unit. Further, the invention in question counts on a protection means, with paralyzation and partial reversal and/or rotation reducer, in an independent and/or synchronized form, of the movable parts, in case the hydraulic circuit of the implement detects a pressure that is over the preestablished value, avoiding damages and unscheduled stops of the implement.

Claims

1. An arrangement for automatic protection against operational failures in an agricultural implement for mixture and/or distribution of a solid product having variable granulometry, said arrangement comprising: a chassis or a structural base constructed with beams or steel tubes, the chassis or the structural base operatively associated to a tractor unit; at least one helical pitch thread or auger, with bearing shafts in walls or a bottom of a reservoir or a load box, and a terminal element projecting from the at least one helical pitch thread or auger to the walls or the bottom of the reservoir or the load box, wherein the terminal element is coupled to a motor source; and a sensor that interoperates with a computer through a backplane or a wireless transmission network to activate a volumetric displacement control valve when a pressure limit is exceeded; wherein the computer sends an analogic or digital signal for reversing a swivel direction and/or reducing rotation of the at least one helical pitch thread or auger, in an independent and/or synchronized manner, causing a new round in a circuit in a traction system of the at least one helical pitch thread or auger, thereby providing an additional force for disaggregating the solid product that has caused locking of the rotation of the at least one helical pitch thread or auger.

2. The arrangement according to claim 1, wherein the sensor interoperates with the computer so that when the normal work tension of the operation is exceeded, the direction of the at least one helical pitch thread or auger is reversed by an electric motor, beginning a new round.

3. The arrangement according to claim 1, wherein the tractor unit is selected from the group consisting of a wheel tractor, conveyors, and a truck.

4. The arrangement according to claim 1, wherein the terminal element is a hexagonal or splined shaft.

5. The arrangement according to claim 1, wherein the motor source is a hydraulic, electrical, or pneumatic motor.

6. The arrangement according to claim 1, wherein the sensor is selected from the group consisting of a pressure transducer, an optical sensor, and an inductive sensor.

Description

BRIEF DESCRIPTION OF THE FIGURES

(1) The invention will be better understood based on the attached figures, shown as examples of a possible embodiment, wherein:

(2) FIG. 01Represents a perspective view of a turning and distribution set applied in the arrangement introduced in agricultural implement for the mixture and/or distribution of a solid product having variable granulometry of the mixer type implement and/or distributor;

(3) FIG. 02Represents a perspective view of a turning and distribution set applied in the arrangement introduced for automatic protection against operational failures in an agricultural implement for the mixture and/or distribution of a solid product having variable granulometry or the mixer type implement and/or distributor, object of the present invention;

(4) FIG. 03Represents one of the sensing forms applied to the arrangement introduced for the automatic protection against operational failures in an agricultural implement for the mixture and/or distribution of a solid product having variable granulometry of the mixer type implement and/or distributor, object of the present invention;

(5) FIG. 04Represents a form of installation, of a hydraulic circuit with pressure transducer, applied to the arrangement introduced for the automatic protection against operational failures in an agricultural implement for the mixture and/or distribution of a solid product having variable granulometry of the mixer type implement and/or distributor, object of the present invention.

PREFERRED EMBODIMENT

(6) Based on the drawings and figures listed above, the present invention comprises an arrangement introduced for automatic protection against operational failures in an agricultural implement for the mixture and/or distribution of a solid product having variable granulometry of the mixer type implement and/or distributor, conceived as from a machine or agricultural implement comprised of a chassis (01) or alternatively a structural frame, in the case of a stationary machine whereby this chassis or frame is constructed with beams or steel tubes, so that, as represented in the figures, said chassis is medium supported by at least one set of soil wheels (02), such as a simple or double wheelset in tandem, being preceded by coupling means to the tractor unit such as a wheel tractor, conveyors, over the chassis of a truck or a motor source associated to a stationary equipment.

(7) Whereby the structure holds on the upper portion a reservoir or load box (03), constructed in steel plates, in hopper shape or other tapered geometry which allows the product with variable geometry to flow by gravity to the bottom. This reservoir or load box (03) has at least one helical pitch thread or an auger (04), with shaft bearings in the transversal walls thereof or at the bottom, whereby it can alternatively have beater arms (05), from these movable parts terminal portions are projected to the external part of the reservoir or load box, such as hexagonal or splined shafts, that receive a motor source, which can be a hydraulic motor, a pneumatic actuator or an electric motor, whereby this motor source has a sensing system for the loads imposed to the circuit, as represented in the figures, being a mechanical system, an optical or inductive sensor for reading the rotations of a gear box (06) can be employed, in the case of a hydraulic or pneumatic circuit there are used sensors or pressure transducers, such as hall effect valves, for example, which interoperate by means of a backplane, or a system of information transmission whether by analogic or digital signals, with a computer means, such as a circuit that is integrated with the combination of a multiplexer element and a demultiplexer, a micro-controlled electronic unit, among others, whereby the algorithm establishes a force or pressure limit for the circuit, so that, upon reaching this limit, in the case of hydraulic and pneumatic systems, the system activates the volumetric displacement control valve of the motor source, one the work pressure is reestablished the unlocking stage begins, in a reverse manner or by reduced rotation, in an independent and/or synchronized form, of the movable parts of the agricultural implement or machine, by a perimeter preestablished as ? turn, for example, whereby next there begins a new round for the disaggregation of the solid materials having variable granulometry occurs, which caused the locking of the system.

(8) In a second constructive manner, more concretely in stationary machines there is carried out the sensing of the work tension of the motor unit or the gears, once a new overload is detected, the motor unit is turned off and/or the rotation is reduced, in an independent or synchronized manner, of the movable parts, by electric means known for reversal, such as for example, an electric circuit comprising an H bridge or other means of reversal of the rotation through the processing of an analogic or digital signal.

(9) Having described only three constructive forms of embodiment of the arrangement introduced for automatic protection against operational failures in an agricultural implement for the mixture and/or distribution of a solid product having variable granulometry of the mixer type implement and/or distributor, it is clear that eventual changes can occur without departing from the scope of one or more claims which accompany the present specification.