FR2462087A1 - Multi-row beet harvester - stores in batch and has collector for spilled beet delivering to elevator - Google Patents

Abstract

The multi-row beet harvesting machine has a sifting and transport mechanism connected to the lifting tools. Pref. this slopes upwards and rearwards, and has an elevator and transfer conveyor for loading the beet while travelling. It has a device storing the lifted beet in a batch, also a rear collector picking up what has fallen on the ground during the next working pass, and delivering it to the elevator. A mechanism can be provided to allow the lowering of the collector to the ground when reversing, to pick up spilled beet.

Description

The present invention relates to a beet harvesting machine with several rows, equipped with a screen and a conveyor following the uprooting device thereof, preferably inclined towards the top and rearward in the direction of the trip, of an elevator as well as a transporter for the transfer of beets during the trip.

 Multi-row beet harvesting machines equipped with devices for transferring uprooted beets to a vehicle moving alongside are widely known in practice.

 I1 is disadvantageous in the case of these known beet harvesting machines equipped with a transfer device that, during uprooting in rows or in fields with a wooded area or ditches on the edge or in fields whose surfaces adjacent can not be crossed for any reason, for example intermediate fruit crops or new crops, uprooting and transfer of beets is only possible with difficulty or with loss of yield or deterioration caused to beets. The transfer of beets is then carried out, for example, on a vehicle moving next to the machine, which is pulled by means of a tractor through the entire beet field. The beets then still in the ground are strongly damaged, and during the subsequent uprooting of these severely damaged beets and also partially sunk deeply into the ground, other difficulties arise, resulting in uprooting losses.

 The object of the present invention is to remedy the aforementioned drawbacks and to produce a beet harvesting machine equipped with a transfer device, which allows, even in fields with limits which cannot be crossed laterally, uprooting and transfer of beets free from breakdowns and losses as well as uprooting in rows (i.e. uprooting of the entire beet plantation).

According to the invention, this is obtained by the fact that the beet harvesting machine comprises a device for depositing in javel for the beets uprooted as well as on its rear side a device for collecting beets receiving, during a second passage, the beets deposited on the ground and changing the elevator.

 The beet harvesting machine according to the invention allows, at the start of uprooting at the edge of a field, the removal of uprooted beets in a javelina; it therefore does not require, during the first pass, not to move any vehicle yet for transfer next to the beet harvesting machine.

During the second passage, uprooting and transfer to a vehicle moving alongside can be carried out with the beet harvesting machine according to the invention. After this uprooting operation with simultaneous or also subsequent transfer, during a second pass, using the beet receiving device, the beets deposited on the floor in the javelina are collected and by means of the conveyor a transfer to a vehicle moving alongside. The device according to the invention largely excludes deterioration caused to beets and losses or breakdowns during the uprooting operation are also avoided, so that with the beet harvesting machine according to the invention, an impeccable uprooting of beets is also possible on fields which do not allow a lateral crossing of the limits of the field.

 In addition, uprooting in rows is uprooting on the entire beet plantation, can be done in a simple way.

Also, thanks to the beet harvesting machine according to the invention, it is possible to uproot in advance, which is particularly advantageous because, for example at the time of uprooting, no vehicle is available for the transfer .

According to an exemplary embodiment of the invention, it is provided that the beet receiving device loading the elevator can be put into action (lowered) on the rear side of the machine when it recedes.

 A particularly advantageous embodiment is that in which the bleaching device is formed by a device guiding / leading the beets from the discharge point of the elevator towards the ground, preferably a slide. The conductive device can in this case be made in the form of a channel, preferably as a grid. By means of such a conductive device, a particularly simple removal of the beets uprooted in a javelina in the region behind the machine is possible, and in the case of the grid-like construction thereof, a certain amount of dirt can still be separated from beets.

Preferably, the conductive device is made so that it ends approximately in the middle zone behind the uprooting device.

The beets are thus deposited in a javelle approximately in the middle behind the uprooting machine, so that during the second passage of said machine over the field, during which an uprooting is carried out and a transfer to a vehicle moving at side, this vehicle and the tractor pulling it can leave behind the bleach between their tracks.

 In another embodiment of the invention, the conductive device is arranged retractable below the discharge point of the elevator, preferably articulated. Owing to this retractable arrangement of the conveyor device, once this and once the transfer conveyor can, as required, be arranged with its pick-up point below the discharge point of the elevator, and it is thus possible to carry out either the removal of the beets in a javelina, or the transfer of this one on a vehicle.

 The invention further provides that the beet receiving device disposed on the rear side of the harvesting machine is a member for transporting and cleaning the beets consisting of different finger cylinders arranged in succession. The finger cylinders in this case allow on the one hand a satisfactory reception of the beets being on the ground and also further perform a post-cleaning of the beets received on the transport track formed by the finger cylinders.

Instead of finger cylinders, the beet receiving device can, as the invention also provides, also include screen and transport wheels or a receiver / collector strip, preferably with a strap disposed above.

A preferred and advantageous embodiment of the invention is that in which the beet receiving device is articulated to the frame / chassis of the machine, retractable, preferably pivoting, from a resting position outside the central region behind the machine d grubbing up of beets. There is thus obtained on the one hand a free space for depositing the beets in the area behind the harvesting machine and on the other hand, a picked up, compact transport position of the harvesting machine.

 A beet harvesting machine also leads to a compact embodiment, in which the elevator is a conveyor with internal conveying including the screen and the conveyor and guided around the point of discharge. This conveyor with internal conveying can be loaded in a simple way as well from the front during a progression as also from the rear during a recoil.

According to another embodiment of the invention, it is provided that the beet harvesting machine comprises on its rear side a beet receiving device receiving during a forward movement the beets deposited on the ground by the device of javelining and loading the elevator.

It is thus also possible with the machine according to the invention, in the case of the uprooting device lifted during the forward movement, to collect with the receiving device the beets deposited on the floor in javelina and to transfer them to a vehicle moving next to the machine.

 According to an exemplary embodiment, the beet receiving device is formed of two conveyor belts, preferably conveyor belts which can be screened (conveyor belts with stems) holding the beets to be transported together, arranged substantially parallel to one another, driven against -sense and including a beet extraction well of variable cross section adapting to beets, which are both inclined forward towards the ground in the lower region in the longitudinal direction of travel.

The beets are thus safely collected by this beet receiving device and are brought with another simultaneous screening to the elevator.

 In another embodiment of the invention, the two conveyor belts of the beet receiving device are produced without drive members and at least one of the conveyor belts is loaded by spring with its strand on the extraction well side in the direction of the other conveyor belt. Thanks to the fact that the two conveyor belts are not driven, it is possible to transport the beets to a large extent free from deterioration and, moreover, to be adapted to different sizes of beets easily possible thanks to the spring loaded design of at least one side strand extraction well.

 According to an exemplary embodiment of the invention, provision is made for the beet receiving device to go from the reception area approximately in the form of an arc to the discharge / discharge zone in the elevator. The collected beets arrive, during a forward movement, by a relatively short path in the elevator and the beet receiving device has a short embodiment.

In another embodiment of the invention, the conductive device is retractable below the discharge point of the elevator, preferably articulated. Thanks to this retractable arrangement of the conductive device, as needed once it, once the transfer conveyor with its pick-up point can be arranged below the discharge point of the elevator, and is thus possible either the removal of the beets in a javelina, or the transfer of these on a vehicle.

The subject of the invention extends not only to the characteristics of the different claims, but also to their combination.

The invention allows different embodiments. An exemplary embodiment is shown in the drawings and will be described below in detail, with reference to the schematic drawings (without chassis parts for reasons of simplicity),
- Figure 1 is a schematic top view of a towed six-row beet harvesting machine, equipped with an elevator and a transfer conveyor as well as a device for depositing in javelina and a beet receiving device on the rear side of the harvester
- Figure 2 shows in side elevation the device according to Figure 1;
- Figure 3 is another side elevation of Figure 1 with a beet pickup device for forward travel.

The beet harvesting machine according to the invention can be arranged in a towed or self-propelled frame (not shown) and be produced as a component of a uprooting loader.

In the case of the beet grubbing-up machine according to the schematic representation, behind the different uprooting devices 1 (preferably those which consist of plowshares 2 as well as those arranged downstream, in particular above guide rods curved towards the top, favoring the uprooting operation and / or consisting of lifting wheels 3 lifting from the ground by a considerable amount the beets uprooted), neither the beets nor the screen and transport device 4 downstream (preferably two wheels screen 5.6 juxtaposed transferally to the direction of travel F are not in contact with the ground. Plowshares 2 can be moved laterally (pivoting laterally, oscillating laterally or movable laterally) to a limited extent for the purpose of automatic adaptation to the place of each of the beets to be harvested and can also be made as oscillating uprooting elements (at least one half-share being able to be moved up r).

The lifting wheels 3 are arranged in a V relative to each other and driven. Advantageously, the lifting wheels 3 of the three uprooting devices 1 - located in front of a screen wheel 5/6 are driven by means of a common articulated shaft section, these articulated shaft structures being driven (not shown) by the side of the associated machine (right or left side of the frame). Each lifting wheel 3 is produced elastically at least in the marginal zone, is particularly advantageous an embodiment with drive members (drive fingers) in the form of elastic spokes 3a, these being provided with scraping edges for a better cleaning of the beets on the side adjacent to the V-shaped space and which can possibly be made entirely of elastic rubber.

The screen wheels 5, 6 rotate driven around vertical axes of rotation, with their upper end inclined slightly forward from the vertical and have at least in the outer marginal zone in the direction of rotation of the teeth 7 folded towards the rear, preferably resiliently held, which, due to a greater deviation of the soil from the anterior periphery, remain out of contact with the soil throughout their rotation and thus can cause no unnecessary amount of soil in the cleaning and transport. In order to ensure a better cleaning effect, the different teeth 7 are freely movable, that is to say not joined together in the outer marginal zone, see FIG. 1.

 The screen wheels 5, 6 of appropriate width extending over three rows of beets (approximately 1.5 m in diameter) can turn in the same direction or in the opposite direction, it is advantageous to make two loading points of beets for the height conveyor arranged downstream, formed after the elevator 8 and is particularly advantageous, because of a more favorable evacuation of dirt, the rotation of the screen wheel directed turns towards the outside of the machine, shown in Figure 2.

 On the edge, the two screen wheels 5, 6 are surrounded in the sector carrying beets up to the point of transfer of conductive walls (conductive grids) 9 which can advantageously provide screening. Each conductive wall 9 present on the lifting side a peripheral transfer part 9a, advantageously extending tangentially, with respect to which there is spaced an internal transfer part 10 bringing and scraping the beets, starting approximately by means of the wheel. screen, covering by cutting the respective screen wheel 5, 6, preferably at the cutting point of the screen wheel 5, 6 and the elevator 8. Between the different uprooting devices 1 can also be grids conductive.

 The screen and loading device according to the invention consists of a screen and transport device LI, behind the beet loading point or points, the elevator 8 connected to it as well as a conveyor for transfer 12 provided pivoting laterally in order to reduce the width of the machine around a pivot axis 11, arranged obliquely in the elevator 8, making an acute angle, directly loaded by the latter and projecting laterally beyond of the elevator 8 in the transfer position.

 The elevator 8 and the transfer conveyor 12 are provided with a conveyor belt 13, 14 capable of screening, flexible at least longitudinally, which both rotate around return members 15, 16, 17 in the form of rollers. The two conveyor belts 13, 14 can be produced identically to a large extent and have support rods 13b, 14b (for example twin rods) on lateral drives 13a, 14b (for example twin rods) on lateral drives 13a, 14a, extending in parallel (for example rubber toothed belts), some of which are provided at determined intervals with drive members 13c, 14c. In order to ensure transport, the drive members 13c, 14c. In order to ensure transport, the drive members 13c of the elevator 8 are arranged projecting inwards and the drive members 14c of the conveyor transfer 12 protruding outwards.

The elevator 8 extends within the width of 3 m permissible for transport over the entire width of the machine transversely to the direction of movement F, surrounds a quadrilateral, in particular a rectangle elongated in the direction of the width and is, as can be seen in Figure 1, inclined sloping backwards seen in the longitudinal direction of the machine. Its lower strand supports with the lateral part located in front the rear periphery of the two screen wheels 5, 6.

With the lateral zone located at the rear of the lower strand of the elevator conveyor 8 is associated a collecting and guiding part 18, preventing a fall of the beets, preferably a conductive grid fixed to the frame of the machine or of the machine. and extending transversely to the direction of travel
F of the machine.

 On the side of the machine, in particular on the side facing the beet field, is disposed at the height of the elevator 8, a well 19, which can preferably be screened, limiting with the conveyor belt 13 a vertical extraction well , which is carried by the machine frame or an elevator frame.

This well 19 can be formed by a U-shaped grid in section or by two side walls possibly also receiving the support points of the return members 16, laterally covering the conveyor belt 13 and by a longitudinal grid provided between as well as at an appropriate height with the beet passage interval between the upper and lower strands of the conveyor belt 13 of the elevator.

 On the side of the extraction well of the elevator is arranged below the upper strand in the direction of rotation of the conveyor belt behind the well, a conductive device 20 which can be screened (shown in dashed lines in FIG. 2), on which the beets abandoned by the elevator 8 at the point of discharge thereof are moved in the direction of the pick-up area of the transfer transporter 12.

The transfer conveyor 12 comprises, in known manner, on both sides next to the upper carrying strand, walls of the limitations forming a tray, not shown.

 With a view to reducing the width of the machine, the transfer conveyor 12, surrounding the elevator 8 from the front, preferably extends in the longitudinal direction of the machine around its pivot axis 11 disposed in front of the elevator 8 with the transfer end tilted towards the tractor or the start of the machine, until it is within the width of the elevator.

In the two extreme positions of the pivot angle, the transfer conveyor is blocked in a known manner. It goes without saying that it can also be associated with a device (displacement group) promoting or ensuring pivoting.

The pivot axis 11 is located on the bandwidth bisectors of the transfer conveyor and is arranged at a greater distance from the rear deflection end, so that on the one hand in the transfer position due of the shortened cantilever arm coming into action, considered from the middle of the fulcrum, only relatively weak torques (torques significantly weaker than for the hitherto usual support at the posterior end of the conveyor belt) are exerted on the pivoting bearing and on the other hand in the transport position on all we obtain an advantageous arrangement of the end of the transfer conveyor on the receiving side in the elevator 8 and we thus obtain a length outside very short towards the front end of the machine.

 As shown in particular in the top view of FIG. 1, in the case of the transfer conveyor 12 tilted into the transport position according to the invention, is arranged below the discharge point of the elevator 8, a slide 21 serving as a conductive device, which deposits on the ground, in a javel 23 approximately in the middle behind the harvesting machine, the beets coming from the discharge point 22 on the slide 21. The slide 21 can be produced in the form of a grid in order to '' get beets in this area. This removal of beets in the bleach on the ground is particularly necessary during uprooting in rows and also in the case of field edges that cannot be crossed laterally.

 The reception of these beets deposited on the javel floor 23 is carried out according to the invention thanks to a receiver / collector device 24 disposed on the rear side of the harvester, which penetrates with its discharge end 25 into the area above the lower strand of the elevator 8 and transports the beets received there on the elevator 8. The beet harvesting machine is then moved in the backward direction R above the field.

As a beet reception and collection device 24, known reception devices can be provided, such as finger cylinders, reception wheels, reception bands or the like, arranged in succession.

A preferred and advantageous embodiment of the device according to the invention is that in which the beet receiving device 24 is articulated to the frame of the machine, retractable in a rest position from the middle position to behind the harvesting machine. A short transport position is thus obtained for the uprooting machine and, in addition, thanks to this retraction of the beet receiving device (24), the free space necessary for the javel deposits of beets is provided behind the machine.

 In the embodiment shown in Figure 3, which essentially corresponds to the beet receiving device in the embodiment according to Figure 2, the beets deposited on the floor in javelina 23 are collected during the progression V of the beet grubbing machine by means of a receiving device 24 ′ placed in the posterior region of the latter and transported in the elevator 8. The uprooting devices 1 and the screen wheels 5, 6 of the screen 4 are then in a rest position. The beet receiving device 24 'articulated in a manner not shown in the chassis of the machine has two conveyor belts 27, 28, preferably conveyor belts which can be screened (conveyor belts stems) now clamped together the beets to be transported, arranged substantially parallel to each other, driven against the grain and including a beet extraction well 26, of various cross section able to adapt to beets. The two conveyor belts 27, 28 are preferably made without drive members and at least one is movable with its strand facing the well 26 spring loaded beet extraction well in the direction of the other conveyor belt, so that during the transportation of the beets it is possible to hold them by clamping and also to adapt to different sizes of beets.

In a preferred embodiment, the beet receiving device 24 ′ going from the reception zone 29 to the discharge zone 30 in the elevator 8 is produced in a curved manner. The two driven conveyor belts 27, 28 are guided on the different elements by a certain number of guide and retaining rollers 31 or return rollers 32.

In the receiving zone 29 close to the ground of the beet receiving device 24 ′, the upper conveyor belt 27 goes a little further in the direction of movement V forwards than the conveyor belt 27 receiving the beets. to obtain almost lossless reception of the beets on the ground.

 From the working position shown in FIG. 3, the beet receiving device 24 is retractable into a transport position in a manner not shown, preferably able to pivot upwards by articulation to the chassis of the harvesting machine. beets.

 The machine frame, not shown, may have driven or driven rear wheels, the first of the two versions being particularly preferred.

Claims (15)

 1. Multi-row beet harvester equipped with a screen and a conveyor following the uprooting device thereof, preferably inclined upwards and backwards in the direction of movement, d '' an elevator as well as a conveyor for the transfer of beets during movement, characterized in that it comprises a device for depositing in javelins (21) for the beets uprooted as well as on its rear side a device for picking up beets (24) receiving on a second pass the beets deposited on the ground and loading the elevator (8). 2. Beet harvesting machine according to claim 1, characterized in that the device (24) for receiving beets loading the elevator is arranged on the rear side of the machine so that it can be put into action ( lowered) when backing up the machine.  3. Beet grubbing-up machine according to claim 1, characterized in that the device for depositing in bleaches is constituted by a conductive device guiding / leading the beets from the point (22) of discharge of the elevator (8) to 'on the ground, preferably a slide.  4. Beet harvesting machine according to claim 3, characterized in that the conductive device (slide 21) is produced in the form of a channel, preferably as a grid. 5. Beet harvesting machine according to claim 4, characterized in that the conductive device (slide 21) ends approximately in the middle region of the machine.  6. beet harvesting machine according to one of claims 1 to 5, characterized in that the conductive device (slide 21) is arranged, preferably hinged retractably below the discharge point (22) of the elevator (8).  7. beet harvesting machine according to claim 1 or 2, characterized in that the device (24) for receiving beets, disposed on its rear side, is a member for transporting and cleaning beets consisting of different cylinders with fingers mounted in succession.  8. Beet harvesting machine according to claim 1 or 2, characterized in that the device (24) for receiving beets comprises reception wheels and a screen as well as a sty conveyor attaching, preferably screen wheels and transportation.  9. beet harvesting machine according to claim 1 or 2, characterized in that the device (24) for collecting beets consists of a receiving / collecting strip, preferably with a strap disposed above. 10. Beet harvesting machine according to one of claims 1 to 9, characterized in that the elevator (8) loaded by the conductive device (slide (21) or the device (24) for receiving beets is formed by a conveyor with internal conveying including the screen and the conveyor (4) and guided around the discharge point (22).  11. Multi-row beet harvesting machine according to one of claims 1 to r0, characterized in that it comprises on its rear side a device (24 ') for receiving beets receiving during a forward movement the beets deposited on the ground by the device (21) for depositing in javelins and loading the elevator (8).  12. Beet harvesting machine according to claim 11, characterized in that the beet receiving device (24) is formed by two conveyor belts (27, 28) preferably conveyor belts which can be screened (conveyor belts with stems) holding the beets to be transported together, arranged substantially parallel to one another, driven in the opposite direction and including a beet extraction well (26) of variable cross section adapting to the beets, which are both inclined towards the front towards the ground in the lower region in the longitudinal direction of the machine.  13. beet harvesting machine according to claim 12, characterized in that the two conveyor belts (27, 28) of the beet receiving device (24 ') are produced without drive members and at least one of the conveyor belts (27 or 28) is loaded by spring with its strand on the extraction well side towards the other conveyor belt (27 or 28).  14. Beet grubbing machine according to one of revneidcations 11 to 13, characterized in that the device (24 ') for receiving beets goes from the reception zone (29) approximately in the shape of an arc to the zone (30) of discharge / discharge in the elevator (8). 15. Beet grubbing machine according to one of claims 1 to 14, characterized in that the beet receiving device (24, 24 ') is articulated to the frame or the chassis of the machine, preferably retractable by pivoting in a rest position outside the middle area behind the beet harvester.