The present invention refers, in a general manner, to a novel debris extractor set for agricultural machinery, such as those known as tall and stalky plant pickers. More particularly, said debris extractor set comprises characteristics developed to improve the transportation conditions of the machines, but also to optimize the lubrication of the bearings of said ventilator. Further, the present invention addresses the harvesting machine intended for harvesting tall and stalky plants, such as a sugarcane picker, which has at least a debris extractor, according to the object of the invention.
BACKGROUND OF THE INVENTION
[002] There are in the state of the art countless models of equipment and agricultural machinery developed to provide increased productivity in the harvest of various types of vegetable crops, for example, harvesters of grain, foraging machines and, also, picking machines of the so-called tall and stalky plants, as is the case of sugarcane and sweet sorghum.
[003] The machines intended for harvesting these tall and stalky plants are designed and developed to provide the harvest of this specific type of culture, because its intrinsic characteristics require specific conditions for the adequate processing thereof, from the cut up to the transfer to the transshipments and/or trucks.
[004] In this context, it is known that these tall and stalky plant picker machines comprise a chassis that supports a series of conveyor rollers and choppers responsible for conveying and chopping the sugarcane into setts, which are transferred to the transshipments and/or trucks by way of an elevator.
[005] As persons skilled in the art will appreciate, besides cane or sorghum, these conveyor rollers and choppers convey a plurality of other

debris, such as leaves, branches, earth, which are dragged into the machine as it moves through the field. So, to promote the separation of the material harvested and transfer to the transshipments and/or trucks only the setts of cane or sorghum, these picking machines comprise a material cleaning system, normally, consist of a primary debris extractor positioned at the outlet of the chopper rollers, and a secondary debris extractor disposed at the outlet of said elevator when the setts of cane and sorghum are being dumped into the transshipments and/or trucks.
[006] These extractors, usually, comprise ventilators which are designed with an aerodynamic format to form a vortex capable of generating a suction or vacuum force sufficient to capture the debris and expel it out of the machine through said extractors. Therefore, according to the cleaning systems of material from these machines of the state of the art, these ventilators are formed by the blades and, further, by a protection structure of the support bearings the purpose of which is, besides protecting the ventilator hub and the bearings per se, to assist in forming the vortex for extracting the lighter debris than the setts.
[007] One of the drawbacks noted in the state of the art relates to the arrangement of the motor units of these cleaning systems, chiefly in the case of the primary debris extractor set, since it remains under the cover of these extractor set and, consequently, ends up increasing the height of the machines. In other words, said motor unit of the primary debris extractor set is the highest part of the machines from the state of the art and, with this, ends up causing certain drawbacks related to the transportation of these machines on public highways, such as roads and streets, chiefly when there are bridges, tunnels, suspended electric networks along the path taken. In these cases, there is a commonly need to disassemble the primary debris extractor set prior to transportation and assembly when it arrives at its destination, requiring the

need for appropriate technicians, tools and structures at the destination for the correct and safe installation of this equipment.
[008] Another drawback of these debris extractor sets relates to the maintenance of the ventilators, particularly, in relation to the lubrication of the support bearings of the ventilator, which is hard to access, and for it to be lubricated adequately, the machine must be stopped and taken to a workshop, where the protection structure needs to be taken apart in order to gain access to the ventilator hub which also needs to be taken apart in order to access said support bearings.
[009] In view of the complexity and difficulty in accessing the rollers of the support bearings of these ventilators from the state of the art, it is noted that the operators and farmers end up putting off, or even overlooking, preventing maintenance involving the lubrication of these bearings, chiefly because of the need to stop the machine, which may cause relatively high losses by affecting the productivity of the harvest. As a result, these ventilators ending up having a rather reduced useful life and, as a logical consequence, ultimately affect the productivity in some cases even more substantially in the event of potential breakage of the ventilator during harvest in the field.
[010] In this context, it is possible to establish that the cleaning system of materials applied in the agricultural machinery from the state of the art require a practical solution that enables the fully assembled transportation thereof, without the need to disassemble any equipment, as well as a functional and effective proposal that assures the adequate lubrication of the support bearings of the ventilators without affecting the productivity of the machine and, chiefly, requiring the stoppage and removal of the machine to workshops. Further, it is noted that the ventilators of the extractors from the state of the art present a substantially reduced useful life, chiefly due to the difficulty and complexity of the maintenance process of the support bearings, which is why

alternative forms are sought that assure due maintenance so as to guarantee the prolonged useful life of this equipment.
[011] Therefore, these are, among others, the objectives and solutions sought to be achieved by developing the present invention.
DESCRIPTION OF THE INVENTION
[012] Therefore, the objective of the present invention is to provide a novel debris extractor applied to a harvesting machine, such as cane and sorghum pickers, which comprises technical, constructive and functional characteristics designed and developed to reduce the height of the machines and, consequently, facilitate the process of transportation of these machines and, also, increase the useful life of the debris extractor sets in order to prolong the effectively productive time of said machines.
[013] More particularly, it is one of the objectives of the present invention, to provide a debris extractor for agricultural machinery that comprises a motor unit installed inside the protection structure of the support bearings so as to reduce the height final of the machine, but also to improve the lubrication of the support bearings of the ventilator. That is, substantially simplifying the transportation process of the machines, and also eliminating the need to take this equipment apart to promote the lubrication of the bearings.
[014] It is also another objective of the present invention to provide a picking machine, particularly intended for harvesting tall and stalky vegetable crops, such as a cane and the sorghum, which comprises at least a debris extractor as mentioned above.
[015] Accordingly, with the purpose of achieving the technical and functional effects summarized above, among others, the present invention refers to a debris extractor set for agricultural machinery which comprises a ventilator endowed with supporting arm that extends downwards from the cover of the extractor set, and the lower end of this supporting arm is associated to a

glove inside of which there is installed a motor unit which, in turn, is associated to a drive shaft supported by roller bearings and is, further, coupled onto the propeller through the hub where the blades are fastened.
[016] According to an embodiment of the present invention, said glove has a configuration to be housed inside a shell formed by at least an upper deflector structure. Optionally, a glove is disposed inside a shell formed by an upper deflector structure and a lower deflector structure, which comprise the configuration of a hubcap.
[017] Additionally, this shell may comprise an intermediary portion to envelop the hub and has a substantially cylindrical configuration whose edges are concordant with the edges of said lower and upper deflector structures.
[018] According to another embodiment and assembly of said shell, the upper deflector structure comprises a peripheral tab locked directly on the hub of the propeller, and the opposite end is associated to a mobile glove which extends along the entire length of the supporting arm. And said lower deflector structure comprises a hollow extreme central recess to accommodate a fastening element which is locked at the end of the drive shaft.
[019] Further, according to another embodiment of the present invention, this drive shaft comprises at least a lubrication channel in communication with said roller bearings.
[020] Another relevant point according to an embodiment of the present invention is in relation to the configuration of the drive shaft which has a base for connection with the motor unit endowed with a concave recess for circulation of lubrication fluid.
[021] In complement, and according to another embodiment of the present invention, said glove comprises a fluid circulation system which is formed by capillary hoses, for feed and outlet, which are connected,

respectively, downstream of said roller bearings.
[022] According to another embodiment of the present invention, the supporting arm is fastened and internally houses the electric, electronic and hydraulic components of the motor unit, which may be an electric motor or a hydraulic motor.
[023] As commented upon above, the present invention also addresses a harvesting machine, of the type that picks tall and stalky plants, which is formed by a chassis mounted on wheels or belts, a motor, an operator cabin and at least a debris extractor set as defined in any one of the preceding claims, on which the ventilator is formed by a supporting arm that extends downwards from the cover of the extractor set and whose lower end is associated to a glove inside of which there is disposed a motor unit which is associated to the propellers by way of a drive shaft.
[024] According to a particular embodiment of the harvesting machine, object of the present invention, said drive shaft of the ventilator of the extractor set comprises at least a lubrication channel in communication with the roller bearings.
[025] Lastly, said harvesting machine, according to the present invention, is intended for harvesting sugarcane.
SUMMARY DESCRIPTION OF THE DRAWINGS
[026] The characteristics, advantages and technical effects of the present invention, as highlighted above, will be better understood, and in a more adequate manner, by a person skilled in the art from the detailed description ahead, provided merely as non-restrictive examples of preferred embodiments, with reference to the accompanying drawings, wherein:
[027] Figure 1 is a schematic side view of a picking machine intended for harvesting tall and stalky vegetable crops, such as sugarcane and sorghum;

[028] Figure 2 is a schematic side view of the ventilator of a debris extractor set for agricultural machinery, object of the present invention;
[029] Figure 3 is a cutaway schematic side view of the ventilator of a debris extractor for agricultural machinery, according to the present invention; and
[030] Figure 4 is a blow-up view of the region of the housing glove of the motor unit of the ventilator of a debris extractor set for agricultural machinery, object of the present invention.
DESCRIPTION OF EMBODIMENTS OF THE INVENTION
[031] The invention will now be described in relation to its particular embodiments, with reference to the accompanying drawings. Said drawings are schematic, and their sizes and/or proportions may not correspond to reality, since they are only designed to describe the invention in a didactic manner. Moreover, certain known and common constructive details may have been omitted for greater clarity and conciseness of the description set out ahead. The reference numbers used are repeated throughout drawings to identify identical or similar parts. Any terms as may be used such as "above", "below", "front", "back", "right", "left" etc. and variants thereof should be interpreted according to the guidance provided in Figure 1.
[032] Now in relation to the drawings, Figure 1 illustrates a side view of an embodiment of an agricultural harvester 10 according to aspects known in the state of the art. The harvester 10 is configured as a sugarcane harvester. However, in other embodiments, the harvester 10 may correspond to any suitable agricultural harvester known in the art, such as sorghum and energy cane.
[033] As shown in Figure 1, the harvester 10 includes a chassis 12, a pair of front wheels 14, a pair of rear wheels 16, and an operator cabin 18. The harvester 10 may also include a primary source of energy (for example, a

motor mounted on the chassis 12) which energizes one or both pairs of wheels 14, 16 by means of a transmission (not shown). Alternatively, the harvester 10 may be a harvester driven on belts and, therefore, may include belts driven by the motor mechanism in replacement of the wheels illustrated 14, 16. The motor mechanism may also drive a hydraulic fluid pump (not shown) configured to generate pressurized hydraulic fluid to drive various hydraulic components of the harvester 10.
[034] Additionally, the harvester 10 may include various components to cut, process, clean and discharge sugarcane as the cane is harvested from a farm field 20. For example, the harvester 10 may include a tip cutter set 22 positioned at its front end to intercept sugarcane as the harvester 10 is moved towards the forward direction represented by the arrow X. As shown, the tip cutter set 22 may include both a gathering disk 24 and a cutting disk 26. The gathering disk 24 may be configured to gather sugarcane stalks, such that the cutting disk 26 can be used to cut the tip of each stalk. Generally, the height of the tip cutter set 22 may be adjustable by means of a pair of arms 28 hydraulically raised and lowered, according to the wishes of the operator.
[035] Additionally, the harvester 10 may include a line divider 30 which extends upwards and backwards from the field 20. In general, the line divider 30 may include two spiral feed rollers 32, also known as "lollypop". Each feed roller 32 may include a ground shoe 34, since its lower end assists the line divider 30 by separating the sugarcane stalks for harvest. Additionally, as shown in Figure 1, the harvester 10 may include a knock-down roller 36 positioned near the front wheels 14 and a roller with projections 38 positioned behind the knock-down roller 36. As the knock-down roller 36 is turned, the sugarcane stalks harvested are toppled over while the line divider 30 gathers the stalks from the farm field 20 in the inward direction of the machine 10. Additionally, as shown in Figure 1, the roller with projections 38 may include a plurality of fins 40

intermittently mounted which help force the sugarcane stalks downwards. As the roller 38 is turned during the harvest, the sugarcane stalks which were toppled over the knock-down roller 36 are separated and then knocked down by the roller 38 as the harvester 10 continues to move forward over the field 20.
[036] Still in reference to Figure 1, the harvester 10 may also include a base cutter set 42 positioned behind the roller 38. As is generally understood, the base cutter set 42 may include blades (not shown) to cut the sugarcane stalks as the cane is harvested. The blades, located in the periphery of the set 42, can be turned by a hydraulic motor (not shown) driven by the hydraulic system of the vehicle. Additionally, in various embodiments, the blades can be angled downwards to cut the base of the sugarcane as the cane is toppled over by the roller 38.
[037] Additionally, the harvester 10 may include a set of one or more conveyor rollers 44 located downstream of the base cutter set 42 to move the cut sugarcane stalks from the base cutter set 42 along the processing trajectory. As shown in Figure 1, the conveyor roller set 44 may include a plurality of lower rollers 46 and a plurality of upper rollers 48. As the sugarcane is conveyed through the conveyor roller set 44, debris (for example, stones, dirt and/or the like) may also be conveyed or fall through the lower rollers 46 onto the field 20.
[038] Additionally, the harvester 10 may include a chopper set 50 located at the downstream end of the conveyor roller set 44 (for example, adjacent to the conveyor rearmost lower and upper rollers 46, 48). In general, the chopper set 50 may be used to cut or chop the sugarcane stalks harvested into smaller pieces or "fragments" 51 which may, for example, measure 15.24 centimeters (six (6) inches), also called setts. The fragments 51 may then be propelled towards an elevator set 52 of the harvester 10 to be collected in an external receptor or storage device (not shown).

[039] As is generally understood, pieces of debris 53 (for example, dust, dirt, leaves, etc.) separated from the fragments of sugarcane 51 may be expelled from the harvester 10 by way of a primary debris extractor set 54, which is located behind the chopper set 50 and is oriented to direct the debris 53 out of the harvester 10. Additionally, a ventilator 56 may be mounted on the primary extractor 54 to generate a suction or vacuum force sufficient to capture the debris 53 and force the debris 53 through the primary extractor 54. The debris 53 is then directed outwardly and generally in the opposite direction of the harvester 10 by means of an outlet of the primary extractor 54. The fragments separated 51 and heavier than the debris 53 being expelled from the extractor 54 can then fall onto the elevator set 52.
[040] As shown in Figure 1, the elevator set 52 may include, in general, an elevator housing 58 and an elevator 60 which extends inwardly of the elevator housing 58 between a lower proximal end 62 and an upper distal end 64. In general, the elevator 60 may include a chain or conveyor belt 66 and a plurality of blades or fractures 68 coupled or spaced in a uniform manner on the chain 66. The fractures 68 can be configured to secure the fragments of sugarcane 51 on the elevator 60 as the fragments 51 are raised upwardly to the top of the elevator 70. Additionally, the elevator 60 may include lower and upper notched wheels 72, 74 positioned around the proximal and distal ends 62, 64, respectively. As shown in Figure 1, an elevator motor 76 may be coupled to one of the notched wheels (for example, the upper notched wheel 74) to drive the chain 66, whereby enabling the chain 66 and the fractures 68 to move in a never-ending cycle between the proximal and distal ends 62, 64 of the elevator 60.
[041] Additionally, pieces of debris 53 (for example, dust, dirt, leaves, etc.) separated from the fragments of sugarcane 51 can be expelled from the harvester 10 by way of a secondary debris extractor set 78 coupled to

the rear end of the elevator 58. As shown in Figure 1, the secondary extractor 78 may be situated adjacently to the distal end 64 of the elevator 60 and may be oriented to direct the debris 53 outwardly of the harvester 10. Additionally, a ventilator 80 may be mounted on the secondary extractor 78 to generate a suction or vacuum force sufficient to extract the debris 53 and force the debris 53 through the secondary extractor 78. The fragments separated 51, heavier than the debris 53 expelled through the extractor 78, can then fall from the distal end 64 of the elevator 60. Typically, the fragments 51 can fall through a discharge opening 82 of the elevator set 52 into an external storage device (not shown), such as a car, a transshipment, a dumpster etc.
[042] During the operation, the harvester 10 is driven throughout the farm field 20 to harvest sugarcane. After the height of the tip cutter 22 is adjusted (if used) by means of the arms 28, the gathering disk 24 on the tip cutter set 22 may act to gather the tips of sugarcane as the harvester 10 proceeds through the field 20, while the cutting disk 26 cuts the leafy tips of the sugarcane stalks to dump them along both sides of the harvester 10. As the stalks enter into the line divider 30, the shoes 34 can configure the width of the operation to determine the quantity of sugarcane that enters into the inlet opening of the harvester 10, either in a fixed or adjustable manner. The lollypops 32 then gather the stalks at the inlet of the machine to enable the knock-down roller 36 to topple the stalks downwards jointly with the action of the roller with fins 38. Once the stalks are positioned at an angle as shown in Figure 1, the base cutter set 42 can then cut the base of the stalks from the field 20. The cut stalks are then directed to the conveyor roller set 44.
[043] The cut sugarcane stalks are conveyed backwards through the conveyor rollers 46, 48 which compress the stalks and the harvested matter. At the downstream end of the conveyor roller set 44, the chopper set 50 cuts or chops the compacted sugarcane stalks into pieces or fragments 51. Debit

conveyed 53 (for example, dust, dirt, leaves, etc.) separated from the fragments of sugarcane 51 is then extracted through the primary debris extractor set 54 using the suction or vacuum created by the ventilator 56. The fragments separated/washed 51 then fall onto the elevator set 52 and travel upwards by means of the elevator 60 from its proximal end 62 to the distal end 64. During the normal operation, since the fragments 51 reach the distal end 64 of the elevator 60, the fragments 51 fall through the discharge opening 82 to an external storage device. Similar to the primary extractor 54, debris is blown outwardly of the harvester 10 through the secondary debris extractor set 78 with the assistance of the ventilator 80.
[044] A picker such as described above may be a sugarcane picker which may comprise and receive the debris extractor set, according to the present invention, and said picking machine 10 may ser, for example, a machine known in the state of the art, such as the CNH Industrial N.V. cane harvester commercialized under the Case IH trademark.
[045] The terms employed herein such as harvester, picker and variations thereof are used indistinctly to designate a machine for picking vegetable crops.
[046] Now with reference to Figures 2 and 3, it is possible to note the ventilator 56, 80 of a debris extractor set according to the present invention, which may be both the primary 54 and the secondary one 78 mentioned above. Said ventilator 56, 80 comprises a supporting arm 90 that extends downwards from the cover of the extractor set 54, 78 and whose lower end is associated to a glove 91 inside of which there is disposed a motor unit 92 which, in turn, is associated to a drive shaft 93 supported by roller bearings 94a, 94b and coupled to the propeller 59 through the hub 59a where the blades 59b are fastened.
[047] According to an embodiment of the present invention, said

glove 91 is configured to be housed inside a shell 57 formed by at least an upper deflector structure 57a. Optionally, said shell 57 comprises a lower deflector structure 57b, and said upper 57a and lower 57b deflector structures comprise the configuration of a hubcap so as to generate an input and outlet anti-vortex effect of the debris passing through the extractor set.
[048] Additionally, this shell 57 may comprise an intermediary portion 57c the purpose of which is to envelop the hub 59a and, further, has a substantially cylindrical configuration such that its edges are concordant with the edges of said upper 57a and lower 57b deflector structures.
[049] According to an embodiment and assembly of said shell 57, the lower deflector structure 57b may comprise a hollow extreme central recess 57b' to accommodate a fastening element 94 which is locked on the end of said drive shaft 93. The upper deflector structure 57a comprises a peripheral tab 57a' which is locked directly on the hub 59a of the propeller 59, and the opposite end is associated to a mobile glove 95 which extends along the entire length of said supporting arm 90 to envelop and protect it.
[050] Another relevant point of the present invention is related to the configuration of said drive shaft 93 whose base 93b responsible for the connection with the motor unit 92 is endowed with a concave recess 93b' the purpose of which is to improve the circulation conditions of lubrication fluid, since it, the circular movement of said drive shaft 93 means a centrifugal force arises, favoring the movement and circulation of the lubrication fluid.
[051] Further, according to another embodiment of the present invention, said drive shaft 93 comprises at least a lubrication channel 93a responsible for supplying lubricating fluid to said roller bearings 94a, 94b. In complement, said glove 91 comprises a fluid circulation system which is formed by capillary hoses, feed 96a, and outlet 96b, which are connected, respectively, downstream of the roller bearings 94a, 94b so as to provide the cooling of the

fluid that lubricates these bearings. In this case, as persons skilled in the art will appreciate, the maintenance of the extractor set becomes even more effective and functional, bearing in mind that the roller bearings 94a and 94b are kept lubricated without the need for disassembling the structure of the extractor set.
[052] Said supporting arm 90 is fastened and may accommodate all the electric, electronic and hydraulic components of the motor unit 92, such as electric cables and harnesses, conduits and hydraulic hoses, considering that said motor unit 92 may be an electric motor, or a hydraulic motor which may also utilize the pressurized hydraulic fluid generated by the pump driven by the motor mechanism usually available in machines harvesters 10.
[053] As commented upon above, the present invention also addresses a harvesting machine 10, such as for harvesting tall and stalky plants, and said machine 10 comprises at least an extractor set whose ventilator 56, 80 which comprises a supporting arm 90 that extends downwards from the cover of the extractor set 54, 78 and whose lower end is associated to a glove 91 inside of which there is disposed a motor unit 92 which is associated to the propeller 59 by way of a drive shaft 93. According to a particular embodiment of the present invention this harvesting machine 10 is a cane or sorghum picker.
[054] According to a particular embodiment of the harvesting machine, object of the present invention, said drive shaft 93 comprises at least a lubrication channel 93a in communication with said roller bearings 94a, 94b, whereby eliminating the need to disassemble the set for maintenance and lubrication of these bearings.
[055] The objective of the present description is merely to present and define examples of preferred embodiments of the debris extractor set for harvesting machines of tall and stalky plants, according to the present invention. Therefore, as persons skilled in the art will likely appreciate, various

modifications and combinations of equivalent elements and details are possible without straying from the scope of protection defined by the accompanying claims.

WE CLAIMS

1.A DEBRIS EXTRACTOR SET FOR AGRICULTURAL MACHINERY, which comprises a ventilator (56, 80) endowed with supporting arm (90) that extends downwards from the cover of the extractor set, characterized in that the lower end of said supporting arm is associated to a glove (91) inside of which there is installed a motor unit (92) which is associated to a drive shaft (93) which is supported by roller bearings (94a, 94b) and is, further, coupled onto the propeller (59) through the hub (59a) where the blades (59b) are fastened.
2. The DEBRIS EXTRACTOR SET FOR AGRICULTURAL MACHINERY, according to claim 1, characterized in that said glove (91) comprises a configuration to be housed inside a shell (57) formed by at least an upper deflector structure (57a).
3. The DEBRIS EXTRACTOR SET FOR AGRICULTURAL MACHINERY, according to claim 1, characterized in that said glove (91) is disposed inside a shell (57) formed by an upper deflector structure (57a) and a lower deflector structure (57b), which comprise the configuration of a hubcap.
4. The DEBRIS EXTRACTOR SET FOR AGRICULTURAL MACHINERY, according to claim 2 or 3, characterized in that said shell (57) further comprises an intermediary portion (57c) to envelop said hub (59a) and has a substantially cylindrical configuration whose edges are concordant with the edges of said upper (57a) and lower (57b) deflector structures.
5. The DEBRIS EXTRACTOR SET FOR AGRICULTURAL MACHINERY, according to claim 2 or 3, characterized in that said upper deflector structure (57a) comprises a peripheral tab (57a1) locked directly on said hub (59a) of the propeller (59), and the opposite end is associated to a mobile glove (95) which extends along the entire length of said supporting arm (90).

6. The DEBRIS EXTRACTOR SET FOR AGRICULTURAL MACHINERY, according to claim 3, characterized in that said lower deflector structure (57b) comprises a hollow extreme central recess (57b') to accommodate a fastening element (94), which is locked at the end of said drive shaft (93).
7. The DEBRIS EXTRACTOR SET FOR AGRICULTURAL MACHINERY, according to claim 1, characterized in that said drive shaft (93) comprises at least a lubrication channel (93a) in communication with the said roller bearings (94a, 94b).
8. The DEBRIS EXTRACTOR SET FOR AGRICULTURAL MACHINERY, according to claim 1, characterized in that said drive shaft (93) comprises a base (93b) for connection with the motor unit (92) which is endowed with a concave recess (93b') for circulation of lubrication fluid.
9. The DEBRIS EXTRACTOR SET FOR AGRICULTURAL MACHINERY, according to claim 1, characterized in that said glove (91) comprises a fluid circulation system which is formed by capillary hoses, feed (96a) and outlet (96b), which are connected, respectively, downstream of said roller bearings (94a, 94b).

10. The DEBRIS EXTRACTOR SET FOR AGRICULTURAL MACHINERY, according to claim 1, characterized in that said supporting arm (90) is fastened and internally houses the electric, electronic and hydraulic components of said motor unit (92).
11. The DEBRIS EXTRACTOR SET FOR AGRICULTURAL MACHINERY, according to claim 1, characterized in that said motor unit (92) is an electric motor or a hydraulic motor.
12. A HARVESTING MACHINE, of the type that picks tall and
stalky plants, formed by a chassis (12) mounted on wheels (14, 16) or belts, a
motor, an operator cabin (18) and at least a debris extractor set (54, 78) as

defined in any one of the preceding claims, and being characterized in that said ventilator (56, 80) comprises a supporting arm (90) that extends downwards from the cover of the extractor set (54, 78) and whose lower end is associated to a glove (91) inside of which there is disposed a motor unit (92) which is associated to the propellers (59) by way of a drive shaft (93).
13. The HARVESTING MACHINE, according to claim 12, characterized in that said drive shaft (93) comprises at least a lubrication channel (93a) in communication with the roller bearings (94a, 94b).
14. The HARVESTING MACHINE, according to claim 12, characterized in that it is intended for harvesting sugarcane.