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. 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 comprising a chassis (01) or a structural base constructed in beams or steel tubes, whereby this chassis or structural base is operatively associated to a tractor unit, such as a wheel tractor, conveyors, or truck (not represented), whereby there is at least one helical pitch thread or auger (04), with bearing shafts in the walls or at the bottom of a reservoir or load box (03), from which there projects a terminal element, such as an hexagonal or splined shaft, coupled to a motor source such as a hydraulic, electrical or pneumatic motor, being characterized by the fact that it comprises a sensing means, such as a pressure or optical or inductive rotation or pressure reading of the circuit, whereby these sensing means (06) interoperate with a computer means through a backplane or a wireless transmission network to activate a volumetric displacement control valve, in case the pressure is exceeded, as well as, the computer means sends an analogic or digital signal for reversing the swivel direction and/or reducing the rotation of the movable parts, in an independent and/or synchronized manner, causing a new round in the circuit in the traction system of these movable parts, whereby in the referred activating there is an additional force that is inherent to the start ramp of the machine or equipment.

2. 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 according to claim 1, comprising activating the movable parts by electric motor in a machine or agricultural implement being characterized by the fact that it comprises means for the reading of the feeding current which interoperates with a computer means so that once the normal work tension of the operation is exceeded the direction of the movable parts is reversed, beginning a new round.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0014] The invention will be better understood based on the attached figures, shown as examples of a possible embodiment, wherein:

[0015] FIG. 01—Represents 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;

[0016] FIG. 02—Represents 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;

[0017] FIG. 03—Represents 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;

[0018] FIG. 04—Represents 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

[0019] 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.

[0020] 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 inducive 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 ¼ 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.

[0021] 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.

[0022] 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.