FR2467528A1 - Agricultural vehicle with supporting frame - has beams mounted on tracked bogies with cross bar carrying tilting support - Google Patents

Abstract

The agricultural vehicle is suitable for seed sowing, manure or other product distribution, irrigation, plant or tree protection. It has a chassis which can be in two parallel sections each has a beam for carrying cross bars. Each beam is supported by a bogie at each end, travelling on crawler tracks. The chassis can support a high structure with supports swung about a horizontal axis parallel with the cross bars between erected and retracted positions. The centre of gravity of part of the support structure can be moved along the longitudinal axis of the machine. The drive enables the structure to be kept parallel with the ground.

Description

The present invention relates to traction machines or apparatus and self-propelled machines or apparatus for vegetable, flower, field crops and arboriculture crops, as well as those of greenhouses.

There is the well-known agricultural tractor, but limited in its performance, by the fact that it cannot tow large-sized devices, and on the other hand it cannot adjust the height of these devices from a few centimeters to several meters, without it being fitted with frames adapted to each mechanism and wheels, such as sprinkler irrigation devices, seeders, powder distributors, fumigators, staking, plastic film mulching, burial of manure and fertilizers, etc. ... it cannot penetrate into the fields when the plants are mature, without causing serious damage, its height is a handicap on the slopes, it is necessary to ballast the front of the tractor to avoid overturning, the compaction of the ground by the wheels or tracks, harms the plants.

It cannot work in FORWARD without making a U-turn to work in the opposite direction, the nuisances on the drivers are often forgotten, they are caused by, the vibrations and the frequent reversal of the driver, to see tool behind, in positions abnormal, causing deformations of the spine.

The noise has repercussions on the whole organism, causing an increase in the heart rate, vaso-constriction of the cutaneous vessels, resulting in sub-irrigation of the epidermis, an acceleration of the respiratory rhythm, the decrease in activity cerebral, resulting in a decrease in attention, memory disturbances and nervous fatigue, to these physiological factors can be added psychological incidences causing a modification of the character or the behavior of anxiety and aggressiveness.

The spreading of toxic, powdery or liquid products in spraying is the source of many intoxications and chronic diseases.

Tractors consume a lot of energy due to the many round trips required in a field, which is not suited to the implement being towed or carried.

Self-propelled machines exist and which replace the tractor, it is in fact the same devices which were towed by the tractor, equipped with engines, but this monofunction of the agricultural devices had as a consequence a very important proliferation of the agricultural machinery, without eliminating largely the disadvantages of the tractor, the automation is very expensive by the number of units required in agricultural work, and therefore impossible to be purchased by the small and medium farmer, the super-equipment of agricultural holdings by this adaptation of an agricultural tool engine very individualized to the cultivated plant, is well known, it takes significant investments to be in possession of a WORKING TOOL allowing to do together the work of the soil.

Tractors and self-propelled machines are equipped, for the most part, with diesel thermal engines, so their servitude to petroleum energy is obvious, another significant aspect of the excess consumption of tractors and self-propelled machines and the personal criterion of each conductor in their use is 5 to 10% by excess rolling or slipping.

The present invention relates to an apparatus which does not have the same aforementioned drawbacks.

More precisely, the invention relates to an apparatus which is intended essentially to make precise positioning in space of one or more irrigation mechanisms, planting of plants, distribution of fertilizers, spraying, dusting, fumigation, staking, dumping of the crops onto conveyor for their release out of the fields, to pose and deposit plastic films of great width for the fight against the late frosts, mulching in plastic film, burial of the manure and fertilizer, and all agricultural equipment having the possibility other adapted to the apparatus according the invention, no danger of overturning due to the loss of the center of gravity on the slopes, variable speed from 1 to 10, carry the necessary supply, seedlings, plants, etc. ... condition two tanks of several hundred liters in the fixed platforms , independence in the choice of motors driving the electric generator, being supplied directly with electric current by electric cable reel that, choice of the degree of automation that can be remote-controlled, the device in its simplest version is equipped with a cam programmer for automatic or semi-automatic operation with manual position for the adjustments of the devices or mechanisms of the motors to speed controllers other than electric can be adapted and if necessary by animal energy.

All the above-mentioned nuisances on the driver, caused by noise, vibrations, frequent overturning of the driver in order to see the tools at the rear, inhalation of powdery or liquid toxic products in spraying and spreading are eliminated, by the fact that the device is designed to operate in semi-automatic or automatic mode, the manual position is only used for adjustment work.

The apparatus according to the invention can be built in small dimensions or in large dimensions, depending on the extent and configuration of the terrain.

It can be single-beam or multi-beam.

The invention will be better understood on reading the description which follows and which refers to the appended drawings, given solely by way of example and in which
Figure 1 is a front view of the invention.

Figure 2 is a top view of Figure 1 according to the invention.

Figure 3 is a right view of Figure 1.

Figure 4 is a section of Figure 2 along A-A.

Figures 5, 6, 7, 8, 9, are cases of figurediappli cation of the invention, being irrigation, Figure 5 spraying bypassing trees, Figure 6 spraying under plastic bell, Figure 8 irrigation with line, Figure 9 sprinkler irrigation of different plants and trees on the same work area of the invention.

The figure t0 represents the rise of a slope of ioe and the figure tt the rise of a slope of 200,, showing the offset of the axis of gravity of the apparatus and its possibility of working in rise and in descent, without risk of overturning.

Figure 12 shows the change from work area 1 to area 3.

FIG. 13 represents an application of the invention to an animal traction engine with a cable system and a merry-go-round with mechanical speed regulation.

The device has a bridge structure with two beams 1 and 2, these form a parallelogram with the spacers 3 and 4, the front spouts 5 and 6 also form two identical parallelograms with the spacers 7 and 8 for the front nozzle 5, and 9 and 10 for the front nozzle 6, the shafts 11 and 12 are identical, the spacers 13 and 14 are fixed to the shaft 11, and the spacers 15 and 16 are fixed to the shaft 12, the shafts 11 and 12 are offset to a third of the height of the spacers 13, 14 and 15, 16, the assembly of the front spout 5 to the shaft 11 by the spacers 8 and 13, and the shaft 11 to the beams 1 and 2 by the spacers 14 and 3, the beams 1 and 2 to the shaft 12 by the spacers 4 and 15, and the shaft 12 to the nose 6 by the spacers 16 and 9, by this assembly we obtain two trees centered in VW this axis is offset relative to the central axis YZ of the parallelogram of the construction.

The shaft 11 has a wheel 17 and two bearings 18 and 19, the shaft 12 has a wheel 20 and two bearings 21 and 22.

On each movable bearing 23, 24 are positioned four rollers 25, 26.

The mounting of the movable blocks 23 and 24 to the shafts tt and 12 allows the structure of the bridge to pivot, by means of the bearings, on the shafts Il and 12, and the offset of the shafts always maintains the structure of the bridge parallel to the ground, the wheels 17 and 20 are meshed with pinions 27 and 28, locking the two movable blocks 23 and 24 so as to maintain the same indexing of the movable blocks relative to the structure of the bridge.

the pinions 29, 30 on the mobile blades 23, 24 are meshed with the half-rings 31, 32, fixed on the fixed blades 33 and 34.

In Figure 4 we see the shaft 35 mounted on four bearings 36, 37, 38, 39, the bearings are fixed to the movable bearing 23, the two channe wheels 40, 41 mesh two roller chains 42, 43 , the roller chains 42 and 43 are meshed with the chain sprockets 44, 45, which are mounted on the two shafts exited from the geared motor with brake 46, the geared motor 46 is mounted on the shaft 47.

The shaft 47 is immobilized on the mobile bearing 23 it has two openings 48, 49 which allow the passage of two roller chains 42, 43.

The fixed bearing 33 has a bronze bearing 50 which acts as a pivot for the shaft 47.

This assembly allows the mobile bearing 23 to be moved by the gear motor 46, around the fixed bearing 33.

The guide rollers 51, 52, 53, 54 allow parallel spreading of the mobile bearings 23, 24, avoiding any stress on the pinions 29, 30, and on the half-rings 31, 32.

The mounting of the blocks 24 and 34 are identical.

The box springs 55, 56 are fixed to the fixed blocks 33, 34.

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The box springs 55, 56 are equipped with four all-terrain self-propelled tracks 57, 58, 59, 60, they are equipped with stepping motors, the tracks can rotate around the axes 61, 62, 63 64 of 180 v and their mounting is isostatic, the trestles 65, 66, 67 B8 of the tracks carry four wheels 69, 70, 71, 72 which are meshed with the shafted gears 73, 74, 75, 76, which are mounted on the box springs 55, 56, which allow by the motorization of these gears to change the steering unit while in motion.

The cylinders 77, 78, 79, 80 placed on the box springs 55, 56, make it possible to lift the blades to turn the tracks from 188 to a standstill, thus allowing the movement of the apparatus on 36oye.

The pinions 29 and 30 are motorized and braked, in order to avoid the swinging of the bridge structure in motion, the possible imbalance caused by the different loads placed under or on the beams and forearms, and when the device is working in slope to keep the bridge structure parallel to the ground.

One or more carriages can be suspended from the bridge structure, the example made in Figures 1 and 3, represents the immobilization of a tool or mechanism in
Itespace when the device is on the move.

Two rails 82 and 83 are fixed to the beams 1 and 2, a motorized carriage 84 is suspended from the rails 82, 83, the tool or mechanism 85 is fixed to the carriage 84, it is understood that the apparatus moved / at constant speed from AV to AP and the carriage 84 moving at the same speed as the device but in the opposite direction, ie from AR to AV, the tool or mechanism will be immobilized in space by the simultaneous speed and in direction opposite of two movements, except during acceleration and deceleration of the carriage.

The device, object of the invention can be used in all cases where it is necessary to use numerous devices, or identical or mixed mechanisms as is the case in agricultural work and locate these devices or mechanisms in the most favorable position near the plants or trees so that their effectiveness is the best.

It is understood that the invention is not limited to the embodiments described above, and many of its applications and modifications can be made without departing from the scope of the present application.

Claims (6)

t- Device allowing to carry, tow and make a precise positioning in space, of tools and or mechanisms useful in agricultural work, characterized by the fact that the kinematic chain of the device allows the bridge structure to reach any fixed point in space with geometric definition and to maintain the positioning of the tools or mechanisms stationary there in space, the device moving at constant or variable speed or move them in one or more trajectories simultaneously, it is limited only by its dimensional and translational possibilities. 2- Device according to claim 1 characterized in that the device has four pallets, two fixed and two mobile. 3- Device according to claim 1 characterized in that the fixed bearing and the movable bearing are assembled by a shaft in the center of the fixed bearing and. at the lower end of the mobile platform. 4- Device according to claim 1 characterized in that the movable platform can be moved in a circular path or make an alternating circular movement to the bridge structure. 5- Device according to claim 1 characterized in that the movable blocks are assembled to the bridge structure by two shafts and two gear trains to keep the bridge structure always parallel to the ground. 6- Device according to claim 1 characterized in that its center of gravity can be offset relative to the longitudinal axis of the device.