Bilateral front hydrostatic weeder with means of boom shock absorption and functional control

Abstract

The present invention relates to a device (1) anchored to a front crossbar (2), duly secured to the front of a lorry or tractor, provided with a very robust mechanical slewing reducer (7), which allows radial movement of an articulated boom, formed by a primary boom (8) and a secondary boom (9), in which a lifting cylinder (10) is provided with a spring (12) for impact absorption, the impacts being absorbed on the secondary cylinder by a lateral cylinder (16) with a spring (17). Finally, an HMI (22) assisted by strategically positioned cameras (23) is capable of facilitating the monitoring and management of various tasks and functions of the weeder.

Description

Bilateral front hydrostatic weeder with boom damping devices and functional controls. INTRODUCTION

[0001] This patent application concerns a novel "BILATERAL FRONT HYDROSTATIC WEEDER WITH LANCE DAMPING MEANS AND FUNCTIONAL CONTROLS," an equipment for positioning the brush with greater reach, activation by digital pushbuttons, with greater impact damping power on the brush lances and greater visibility from inside the cabin, and control via a user-friendly HMI with various functions. FIELD OF APPLICATION

[0002] The field of application of the present invention is that of special vehicles for weeding public spaces by mechanical means (rotating hydrostatic brushes), preferably trucks and tractors. CONVINCING

[0003] It is well known among experts that wheeled sweepers are indispensable equipment for effective weed removal operations in public spaces and streets in general. The combined cleaning action of the high-speed rotating brush and powerful air / water jet removes vegetation and other debris from the streets in moments.

[0004] In this context, new technologies that achieve novel technical effects on hydrostatic brushes installed in special vehicles are welcome in this segment. BACKGROUND OF THE INVENTION

[0005] The current state of the art includes several patent documents concerning rotary brushes installed on special vehicles, such as US 3023441, entitled "BRISTLE ASSEMBLIES FOR GUTTER BROOMS," consisting of a broom that includes a circular metal plate that must be arranged horizontally. Mounted on the central portion of the plate is a cylindrical member for connection to a vertical shaft, which in its upper portion is enclosed within a sleeve and which is... Adapted to be rotated around its axis by means of the force of a truck; said means are not shown in the drawings. The plate is provided with a plurality of holes along its edge for the application of screws.

[0006] The document above anticipates the most basic constructive form of the brush on a truck, mounted laterally without any type of additional feature.

[0007] US patent 6640375 BA, entitled "BRUSH ASSEMBLY," describes a brush assembly for mobile sweepers, said sweeper having a vehicle frame to which a rotating cylindrical brush is connected, said brush having a rotation axis, a rotation motor, a brush frame, a brush frame beam, and a shield fixed to said brush frame beam for guiding the particles to be brushed, said brush frame being coupled to said vehicle frame with a vertical axis on which said brush frame can be rotated to throw, by rotating, the particles to the right or to the left relative to a brush driving direction, said brush comprising a turning apparatus for rotating said brush frame around the vertical axis, said turning apparatus comprising: an articulated auxiliary bar having a first end fixed to said vehicle frame by a joint,a first hydraulic cylinder being fixed to said auxiliary bar by a first end of said first hydraulic cylinder and being fixed to the vehicle structure by a second end of said first hydraulic cylinder, a second hydraulic cylinder being fixed to said auxiliary bar by a first end of said second hydraulic cylinder and being fixed to the brush frame by a second end of said second hydraulic cylinder.

[0008] The document above uses hydraulic cylinders in the primary and secondary arms to adjust the brush reach; however, it lacks any impact absorption or control features for other equipment functions.

[0009] The document BR 10 2015025596-9 A2, entitled "PUBLIC ROAD SWEEPING VEHICLE", is characterized by comprising: chassis, sweeping apparatus with brush frame, sub-motor, fan, high-pressure spray lance, dust suction device, tank, and manual suction tube. The assembly of The sweeping assembly consists of a front-left sweeping disc; rear-right sweeping disc; rear-left sweeping disc; frame; spare spring; rotating frame; rotating and oscillating frame below; rotary motor; spray frame; sweeping disc.

[0010] In the document above, the sweeping vehicle features several discs / brushes, all positioned from its front third to the rear, with limited reach and no control over other equipment functionalities. OBJECTIVES OF THE INVENTION

[0011] The objective of the invention is to propose a bilateral front hydrostatic weeder with damping means for the lances and functional controls that can be installed on special vehicles such as trucks and tractors.

[0012] The objective of the invention is to propose a bilateral front hydrostatic weeder with damping means for the lances and functional controls, equipped with an auxiliary cylinder for lateral tilting of the brush.

[0013] The objective of the invention is to propose a bilateral front hydrostatic weeder with damping means for the lances and functional controls with a cylinder and spring for damping the primary lance.

[0014] The objective of the invention is to propose a bilateral front hydrostatic weeder with damping means for the lances and functional controls with a cylinder and spring for damping the secondary lance.

[0015] The objective of the invention is to propose a bilateral front hydrostatic weeder with damping means for the lances and functional controls implemented through an HMI that commands the opening and closing of the lances; the height of the brush; automates the raising of the brush during the vehicle's reverse movement; provides the operating status; controls the hydraulic pressure; provides the status of the valves; hours worked; performs sweeping monitoring (cameras and limit switches) and provides external images through cameras.

[0016] The objective of the invention is to propose a bilateral front hydrostatic weeder with damping means for the lances and functional controls that, when using the reducer, Mechanical rotation, instead of the conventionally used hydraulic system, promotes greater robustness.

[0017] The objective of the invention is to propose a bilateral front hydrostatic weeder with damping means for the lances and functional controls operated by digital pushbuttons located inside the vehicle's cabin.

[0018] The objective of the invention is to propose a bilateral front hydrostatic weeder with damping devices for the lances and functional controls for safer and more efficient operation, with a wider positioning range, capable of meeting various demands (weeding gutters, curbs, sidewalks and different types of pavement).

[0019] The objective of the invention is to propose a bilateral front hydrostatic weeder with damping devices for the lances and functional controls offering an optimal cost-benefit ratio. SUMMARY OF THE INVENTION

[0020] This is a bilateral front hydrostatic weeder with damping devices for the lances and functional controls. It features additional cylinders and joints to extend the reach of the brush, as well as cylinders and springs to absorb operational impacts on the primary and secondary lances. Control is enhanced by an HMI (Human-Machine Interface), aided by strategically positioned cameras, capable of monitoring and managing various tasks and functionalities of the weeder itself. DESCRIPTION OF THE FIGURES

[0021] The invention will now be described in one embodiment, and for better understanding, reference will be made to the attached drawings, in which the following are represented: Figure 1: Perspective view of the bilateral front hydrostatic weeder with damping devices for the lances and functional controls; Figure 2: Exploded perspective view of the bilateral front hydrostatic weeder with lance damping devices and functional controls; Figure 3: Side view of the articulated boom assembly of the bilateral front hydrostatic weeder with boom damping devices and functional controls; Figure 4: Top view of the articulated boom assembly of the bilateral front hydrostatic weeder with boom damping devices and functional controls; Figure 5: Perspective view of the primary lance of the bilateral front hydrostatic weeder with lance damping devices and functional controls; Figure 6: Perspective view of the secondary lance of the bilateral front hydrostatic weeder with lance damping devices and functional controls; Figure 7: Schematic view of the HMI of the bilateral front hydrostatic weeder with damping means for the lances and functional controls, showing its use; Figure 8: Perspective view of the bilateral front hydrostatic weeder with lance damping devices and functional controls, showing its use. DETAILED DESCRIPTION OF THE INVENTION

[0022] The “BILATERAL FRONT HYDROSTATIC WEEDER WITH BOOM DAMPING MEANS AND FUNCTIONAL CONTROLS” refers to equipment (1) anchored to a front crossbar (2), properly fixed to the front of the truck or tractor, equipped with a robust mechanical rotation reducer (7), which enables radial movement of the articulated boom, formed by the primary boom (8) and the secondary boom (9), in which the lifting cylinder (10) is equipped with a spring (12) for impact damping, as well as the secondary cylinder having impacts absorbed by a side cylinder (16) with a spring (17). Finally, an HMI (22) assisted by strategically positioned cameras (23) is capable of monitoring and managing different tasks and functionalities of the weeder.

[0023] More specifically, the “BILATERAL FRONT HYDROSTATIC WEEDER WITH DAMPING MEANS FOR THE LANCES AND FUNCTIONAL CONTROLS” refers to equipment (1) anchored to a front crossbar (2), properly fixed to the front of the truck or tractor, equipped with parallel guides (3) for the linear movement of a carriage (4) driven by means of a hydraulic motor (5) in a rack and pinion system, thus attributing bilateral frontal displacement to the brush (6) for cleaning public spaces and roads in general. Adjacent to the carriage (4) is a robust mechanical speed reducer (7), which enables radial movement of the articulated lance, formed by the primary lance (8) and the secondary lance (9), in which connection The connection from the mechanical swing reducer (7) to the primary arm (8) and the lifting cylinder (10) is effected by upper and lower connecting rods (11), the lifting cylinder (10) being equipped with a spring (12) for impact damping. In turn, the connection between the primary lance (8) and the secondary lance (9) is made through a pin (13), and from the upper face of said secondary lance extends a front tilt cylinder (14) connected to the pivoting support (15). Connecting the primary lance (8) to the secondary lance (9) there is a side cylinder (16) with a shock-absorbing spring (17) that dampens the mechanical stresses on the secondary lance (9) itself during the cleaning operation. This cleaning is propelled by a hydraulic motor (18), which, connected to a shaft and flange (19), will move the brush (6) at high speed. A tilt cylinder (20) installed on the pivoting support (15) regulates the lateral angle of the cleaning brush (6).The cleaning brush (6) can have numerous steel bristles (21) attached by the supports of the hydraulic motor (18). The steel bristles (21) that are worn can be replaced with new ones as needed, simply by raising the lifting cylinder (10). The protective panel can be raised or lowered via a PLC controller controlled by an HMI (22), depending on the driver's needs and the terrain being cleaned, which can vary greatly from asphalt to cobblestones. When the lifting cylinder (10) is lowered, and the hydraulic motor (17) rotates the brush (6), cleaning can begin simply by adjusting the height of the lances (8, 9) relative to the ground. If there is excess dust, the vehicle driver can spray water stored in the rear of the vehicle. A hose carries the water to the protective panel, which will spray it to prevent excess dust. Side cameras (23) monitor the sweeping.The HMI (22) controls the opening and closing of the booms (8, 9); the height of the brush (6); automates the raising of the brush (6) during the vehicle's reverse movement; provides the operating status; controls the hydraulic pressure; provides the status of the valves; hours worked; performs sweeping monitoring (cameras and limit switches) and provides external images through cameras (23).

Claims

CLAIM 1) “BILATERAL FRONT HYDROSTATIC WEEDER WITH BOOM CUSHIONING MEANS AND FUNCTIONAL CONTROLS” anchored to a front crossbar (2), duly fixed to the front of the truck or tractor, equipped with parallel guides (3) for the linear movement of a car (4) fractionated by means of a hydraulic motor (5) in the rack and pinion system; the radial movement of the articulated boom, formed by the primary boom (8) and the secondary boom (9), in which the connection of the slew reducer to the primary arm (8) and to the lifting cylinder (10) is carried out by upper and lower connecting rods (11); the connection between the primary boom (8) and the secondary boom (9) is made through a pin (13) and from the upper face of said secondary boom comes a front tilt cylinder (14) connected to the pivoting support (15); cleaning is powered by a hydraulic motor (18), which, connected to a shaft and flange (19), will move the brush (6) at high speed;the cleaning brush (6) may have numerous steel bristles (21) attached by the hydraulic motor supports (18); the steel bristles (21), which are worn, may be replaced with new ones as needed, simply by lifting the lifting cylinder (10); characterized in that a mechanical rotation reducer (7) is projected adjacent to the carriage (4); the lifting cylinder (10) is equipped with a spring (12) for impact cushioning; connecting the primary boom (8) to the secondary boom (9) there is a lateral cylinder (16) with a spring (17) for impact absorption; a tilt cylinder (20) is installed on the pivot support (15) and regulates the lateral angle of the cleaning brush (6); the protective panel can be raised or lowered through a PLC controller controlled by an HMI (22) that controls the opening and closing of the booms (8, 9); the height of the brush (6); automates the raising of the brush (6) when the vehicle is reversing; provides operating status; controls hydraulic pressure;provides valve status; hours worked; performs sweep monitoring (cameras and end of stroke) and provides external images through cameras (23).;

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