RELATED APPLICATION
The present application claims priority to Brazilian Application No. 018070033486 filed May 28, 2007, which is incorporated herein in its entirety by reference.
FIELD OF THE INVENTION
The present invention relates to a reaper for grains, specially for the bean grains. More specifically, the present invention refers to technical and functional improvements specially developed and introduced in the subparts which configure a bean reaper that is classified as a trailer to carry out two different operations, the first one of which is gathering various plants, such as bean plants, peanuts and other grains, plants which are previously plucked and aligned, whereas the second function of which is to perform a whole cleaning process by separating the grains (seeds) from the remaining unwanted parts.
BACKGROUND OF THE INVENTION
There are currently several machines made for the above purposes, some of which are designed to harvest and clean the grains and others only for the cleaning process, such as those which are disclosed in the documents: PI0404489 of 20/Oct./1994—accessory for cleaning bean grain collected by reaper; MU 8301200 of 14/Jul./2003—arrangement introduced in beating cylinder for bean and peanut reaper; MU 8301613 of 14/Jul./2003—arrangement introduced in fixed sieve for bean and peanut reaper; PI 0004195 of 01/Sep./2000—bean gathering platform coupled with a universal reaper; MU 8201891 of 13/Aug./2002 arrangement introduced in gathering mouth for bean and peanut harvester; PI 0006329 of 28/Nov./2000—remover of peanuts, beans and other vegetables; MU 7900789 of 21/May/1999—arrangement introduced in bean and peanut harvester; MU 7900686 of 27/Apr./1999—arrangement introduced in bean and peanut harvester; MU 7801088 of 08/Jun./1998—arrangement introduced in bean and peanut harvester; PI 9404196 of 17/Oct./1994 weeder-like bean harvester; PI 9202621 of 07/Jul./1992—bean reaper; MU 7101502 of 05/Jul./1991—bean reaper; and MU 6600822 of 30/May/1986—bean mini-reaper.
There is no doubt that the current known machines have the necessary means to harvest and clean numerous grains, noticeably beans. However, some of these machines are limited and others have a really high manufacturing cost, not configuring an ideal equipment for medium and small producers. On the other hand, the traditional machines have assembling details that wear out very easily, particularly regarding the gathering roller, which is responsible to rise and drive the aligned plants to the first branch concentrating set since, as it is known, one of the most demanded set of the machine is the gathering roller, wherein the grips must be carefully designed to be wear-resistant and chock-resistant in relation to the impact with other matters that are not plants. This machine part must, consequently, have peculiarities to resist the aggressive work, not that caused by the plants, but the unexpected ones that are represented by small stones, land, thick branches and others. Such a situation is not always easily dealt with by the conventional machines. They consequently require frequently corrective and preventive maintenance, which rises considerably the final cost of the processed product.
On the other hand, it is also known that, afterwards the gathering roller, the beating rollers and the vibrating sieve are put in action, and such two sets are rigorously demanded likewise, such as it occurs with the sieve, wherein its fluctuant condition and the vibrating system demands a special care to prevent premature wastage, which do not happen with the known machines.
In view of the above circumstances, and with a purpose of overcoming them, it has been developed the present improvement which, in general terms, incorporates a plurality of changes in all the sets of the machine, featuring a trailered machine specially designed to carry out two different operations, the first one of which is gathering the bean plants, previously plucked and aligned, whereas the second function of which is to perform a whole cleaning process by separating the grains (seeds) from the remaining unwanted parts.
SUMMARY OF THE INVENTION
The first goal of the invention is the materialization of a double gathering roller, that is, two rollers that are axially aligned, a right one and a left one, both of which are appropriate to harvest aligned plants simultaneously, wherein each one is defined by a square tubular axis with cylindrical ends of axis for their bearing on the structure, the square axis of which having several discs that are distributed equidistantly, all of them provided with plates that are ordinarily triangular, radially placed, which configure gathering grips, each disc of which is preferentially provided with five plates or gathering grips, and, furthermore, the central portion of such disc is perforated by a star-like bore (toothed), so that the same may be placed in different angles regarding the four corners of said tube, consequently, the grips are also positioned in angles, in a different manner of each other, originating a substantially resistant set since the combination of various grips defines a vigorous gathering roller that is capable of resisting the aggressive work of harvesting the plants, even when the plants bring stones, land, thick branches and other matters. On the other hand, an even roller is also specially provided above the gathering roller to arrange and drive the plants to the concentrating set, which are two reverse threads designed to concentrate the gathered material and, at the same time, throw it into the subsequent set, which is the routing thread which, in turn, have the necessary means to drive and uniformly divide all the gathered material inside the two beating cylinders, placed longitudinally, assembled inside the respective thick screens (cylindrical sieve), where the bulkier unwanted material is retained, such as branches and leaves, peels and others, which step out directly from the mouths located at the end portion of the beating cylinders and driven to the sides of the machine, whereas the bean and other minor impurities drop by gravity on a vibrating sieve, wherein the grains are retained, whereas particles such as land, sand and the like passes through this sieve and drop by gravity on the ground, whereas the grains and small light particles are vibrated and shaken towards the posterior portion of the machine, wherein ventilators separate the light particles by means of suspension (suction), discarding them through other mouth that is turned to the back of the machine, while the entirely clean grains are driven to two posterior elevators, wherein they are driven until a grain bucket which, in turn, is assembled to laterally incline at the moment they are unloaded, the inclined motion of which is done hydraulically, the grain bucket of which furthermore is provided with openings so that the level of the grains may be seen and, in addition, is provided with a lateral inclined mouth to facilitate the unloading by free drop.
Therefore, it is noted that each set of said machine has had modifications so that, on the end, all of them have cooperated simultaneously to improve considerably the performance of the machine, featuring resources to further speed up the reaping process of various grain cultures, notably the bean and the peanut, further with additional technical and operational advantages, particularly regarding the operational simplicity, reduced maintenance and, consequently, it is obtained a considerable productivity increase.
Another detail that is pointed out in said machine is undoubtedly its operational simplicity since all of its running depends only on a single person, which is the tractor operator, since the machine is simply driven onto the plucked and aligned material and, afterwards, all the process is automatically carried out, separating the grains from the unwanted material.
The reaper of the present invention is classified as a trailered one and may be coupled with conventional tractors with power socket, hydraulic system and reduced gear. Either the coupling or the uncoupling is extremely easy and fast.
BRIEF DESCRIPTION OF THE DRAWINGS
For a better understanding of the present invention, a detailed description of it is given below, referring to the attached drawings, wherein:
FIG. 1 is a perspective view at an anterior top angle of the machine depicting the left side of the same;
FIG. 2 is a perspective view from the right side;
FIG. 3 is a middle section perspective view that points out the inside sets of the machine;
FIG. 4 is a partial perspective view depicting the gathering set and the machine structure;
FIGS. 5-8 are section perspective views that point out the inside sets, mainly the joining roller, beating rollers and cleaning sets;
FIG. 9 is a perspective view depicting the rear portion of the machine, pointing out the outlets for the thick and thin straws;
FIGS. 10 and 11 are other different section perspective views, focusing on other inside details of the machine, mainly the outlet of the vibrating sieve;
FIG. 12 is a posterior perspective view pointing out the grain elevators for the grain bucket;
FIGS. 13 and 14 are perspective views of the assembling details of the central portion of the structure;
FIGS. 15-18 depict perspective views that point out box-shaped complements for the assembly of the joining roller and the cleaning set;
FIGS. 19-22 are perspective views depicting the assembling details of the coupling shaft with the tractor;
FIGS. 23 and 24 are perspective views of the takeoff set to be coupled with the tractor power socket;
FIGS. 25-27 depict the takeoff transmissions of the gathering set;
FIGS. 28-33 are perspective views detailing the gathering set;
FIGS. 34-36 are perspective views depicting the details of the joining roller;
FIGS. 37 and 38 are perspective views focusing on the assembling details of the beating rollers;
FIGS. 39 and 40 are perspective views detailing the vibrating sieve and its takeoff system;
FIGS. 41 and 42 are perspective views detailing the spreading set and its takeoff system;
FIGS. 43-46 are views focusing on the details of the cleaning set and discard of thick and thin straws;
FIGS. 47-51 are perspective views, section views and details focusing on the elevation system of the clean grains to the grain bucket;
FIGS. 52-54 are perspective views detailing the grain bucket, and
FIGS. 55 and 56 are perspective views to elucidate the description of the machine running.
DETAILED DESCRIPTION OF THE INVENTION
In FIGS. 1-3, the present invention is featured by initially comprising a box-shaped structural part (1) which is ordinarily with a parallelepiped form, in which all sets are aggregated, starting from its lower part, wherein the wheeling set (2) is mounted and, in the anterior part, a top passageway (3) is provided with a handrail (4) and side stair (5), as well as the set of the coupling shaft (6) with the tractor (not depicted) is mounted on the anterior part of said structure (1) and the first set of cardan takeoff (7) is aggregated inside of it, which stands under said sets and is mounted in the transversal direction regarding the structure (1), the double gathering set (8), which, in turn, has a supplementary structure (9) with box-shaped side portions (10), wherein other takeoff sets (11-12-13) are mounted in synchronization with the first takeoff (7) and, furthermore, the edges of three internal rotating sets are born among said boxes (10), one of which is lower positioned so as to be displaced close to the ground, which is defined as double gathering roller (14), wherein it rotates clockwise and cooperates to grip and rise the plants and to drive them upwards and backwards, a guiding cylinder (15) standing above the double gathering roller, which rotates in the opposite direction and cooperates to keep or guide the backward displacement of the branches, wherein another equally even and posterior roller (16) (depicted only in the FIG. 3), with a smaller diameter however, has a similar function of guiding said branches so that the same may be received by a joining roller (17) which, in turn, concentrates the gathered branches in the central portion of the machine, wherein said joining roller (17) also cooperates to displace again the plants backwards, however, now it is done inwards a distributing roller (18) which, in turn, is also transversally mounted in the initial portion of the structure (1), wherein it is interconnected with the takeoff (7-11) on one side and, on the opposite side, it is coupled with another takeoff (19), this roller (18) also divides the flow of the gathered material into two different flows and throws them backwards into two sets of beating cylinders (20), better viewed in FIGS. 4-6, through which it is noted that the same are parallelly and longitudinally mounted inside the structure (1), wherein they cooperate to separate the grains from the other unwanted remainders, however, minor grains and particles drop on a large set of vibrating sieve (21), positioned on said beating cylinders (20), so that onto said sieve the grains and other light particles may be retained, whereas particles such as land and sand, which are smaller than said grains, drop free directly to ground, and a spreading set (22) is further mounted onto said portion, which, in turn, is positioned among the posterior edges of the vibrating sieve set (20) and the posterior edges of the beating cylinders (20), which, as it has already been said, separate grains and particles smaller than the same (thin straw) and retain the heavier and bulkier material, mainly leaves, branches and others (thick straw), displacing them backwards, wherein said beating cylinders runs inwards, as the section views of FIGS. 7 and 8 illustrate, a double ventilating and discharge set (23), whose lower portion is provided with side outlets for thick straw (24) and, in the central portion (FIG. 9), an outlet for thin straw (25) is also provided and, furthermore, such as illustrated in FIGS. 10 and 11, the posterior portion of said vibrating sieve set (21) also runs under said set, so that all of its transversal border may be onto a transversal set defined as a gathering channel of clean grains (26) and respective double horizontal transportation set (27A-27B), the latter two carry out the transportation in reverse and cooperating directions so that the clean grains may be displaced from the central portion to the sides of the machine through two different and uniformly divided flows, wherein each flow or each horizontal transporter (27A-27B) concentrates the clean grains in the opposite edges of the gathering channel (26), from which ascending and slightly inclined backward tunnels rise, such as illustrated in FIG. 12, one at each side, which constitute vertical transporting elevators (28) for clean grains, top edges of which runs into the top portion of a grain bucket (29), wherein the entirely clean grains are stored for a later discharge by the inclination of said grain bucket (29).
The box-shaped structure (1) is illustrated in details in FIGS. 13 and 14, by which it is noted that the same is comprised by a basis in a tubular square shape (30), the top portion of which includes a vertical division (31), whereas closing plates (32) raise from its side borders, these and the median (31) have the top borders with a structural reinforcement (33) of ordinarily square tubular profiles, and, furthermore, by the lower side (FIG. 13), said structure have its longitudinal bars (34) provided with inverted U-shaped supports placed medianly (35) for fixing the wheeling set (2) with the corresponding axis, being provided before and afterwards said supports (35) other supports (36), which are each other identical, and other two different ones, of which two are in the shape of a bearing (37) placed on the anterior corners of the structure (1) and another one in the shape of a crossbar (38) positioned in the median portion of the posterior edge of said structure (1), wherein said supports (36-37-38) constitute a fixation point of the vibration sieve set (21).
Such as it is illustrated in FIG. 15, the anterior edge of the structure (1) is prolonged forwards with a structural supplement in the shape of a plate box (39) which, besides of including several openings, has also its top portion shaped as a true parallelepiped box (40), whereas its lower portion is cylindrical shaped (41), in which the first portion (40) externally defines the top plan to configure the top passageway (3) and to assemble the side stair (5) and the coupling shaft (6), whereas the lower cylindrical portion (41) configures an inside and outside lodging for assembling the takeoff sets (7-11-19) and for the adjustable fixation of the structure (9) of the gathering set (8).
As it is illustrated in FIGS. 17 and 18, the posterior portion of the structure (1) is structurally integrated with other details in the shape of plate boxes, one of which is in a median (42) position, another is in a top (43) position, and another one is in a lower (44) position, under which a universal coupling (44a) stands, from which the double ventilation and discharge set (23), the side outlets for thick straw (24), the outlet for thin straw (25), the gathering channel set of clean grains (26) and the respective double horizontal transportation set (27A-27B) are mounted.
The coupling shaft (6) is illustrated in details in the FIGS. 19 and 20, by which it is noted that the same is formed by a central block formed by four longitudinal tubes (45), whose edges are united by pieces of rectangular plates (46-47-48-49), wherein the plates (49-48-47) are provided between the tubes (45) and the edge corresponding to the end of the shaft (50) with universal coupling (51), as well as the plate pieces (49-48-47), are each other substantially near and configure means for the fixation of another piece of side plate (52), wherein part of the takeoff (7) is coupled with and, further, in the posterior portion of the tubes (45), its union plate (46) has a transition box (53) fixed therewith which, afterwards, ends in the shape of a wedge (54), wherein a vertical link-pin (55) is crossed over, for articulated coupling with a piece such as a corner stand (56) which, in turn, such as FIGS. 21 and 22 illustrate, constitutes support for this set to be fixed in the corner corresponding to the box (39) of the structure (1), wherein said box (39) includes a support (57) for an edge of a hydraulic cylinder (58), whose other edge is jointly fixed in other support (59) provided for in the body of the shaft (6).
As FIGS. 23 and 24 illustrate, the takeoff set (7) is formed by two sections of cardan axis, one of which is anterior (60) and the other is posterior (61), in which the first one has its distal edge with friction (62) and universal coupling (63) for being coupled with the tractor power socket, whereas the other edge is coupled with a first transmission box (64) which, in turn, is fixed on the side of the shaft (6), this box being provided with two gears (65-66) and corresponding axis, through which universal joints couple one of them with the first cardan (60) and the other, with the second (61) which, in turn, has its other edge equally coupled with a second transmission box (67), which is equally provided with two gears (68-69), wherein two outlet axis are formed (70-71), both with gears (72-73) that, through chains (74), tensioners (75) and other gears (76-77), configure a transmission for the rotational movement of the beating cylinders (20), one of which includes a second gear (78) that, by means of a chain (79), is synchronized with another gear (80) of a third transmission box (81), whose outlet axis includes a pulley (82) for the coupling with the right side transmission (11), wherein a belt (83) is coupled with another pulley (84) mounted in the axis of the distributing roller (18) and, in this same axis of said pulley (84), it is coupled the edge corresponding to a third cardan (85), whose other edge is synchronized for the rotational movement of the takeoff set (12) mounted inside the box (10) of the gathering set (8).
FIG. 25 illustrates the takeoff set (12), by which it is noted that the same is integrally mounted inside the side box (10) of the gathering set (8), wherein that cardan (85) is coupled with a first gear (86) and, by means of a chain (87) and another gear (88), it transmits the rotational movement to the axis (89) of the joining roller (17), whereas in this same axis (89) is mounted another gear (90) with a chain (91) coupled with another gear (92) which, in turn, is fixed in the axis (93) of the even roller (15), under which another even roller (16) and the gathering roller (14) have their edges of axis with gears (94) and (95) synchronized by chain (96), however, the rotational movement of the same is obtained from the opposite side by the takeoff (13) which, in turn, such as FIGS. 26 and 27 illustrate, is formed by two pulleys (97-98) interconnected by belts (99), as well as the first pulley is coupled with the axis of the joining roller (17), whereas the other pulley (98) is coupled with the axis of the even roller (16), thereby completing the synchronization of transmission as shown in FIG. 26, that is, the rotational movement of the cardan (85) is transmitted to the first gear (86) and from this one to the gear (88) of the joining roller (17) which, in turn, transmits this rotational movement through the chain (91) and gear (92) to the even roller (15) and, furthermore, the opposite edge of the joining roller (17) transmits the rotational movement by transmission (13) through the pulleys (97-98) to the even roller (16) which, finally, through the gears (94-95) and chain (96) transmits rotational movement to the gathering roller (14).
FIGS. 28-30 shows in an enlarged view the double gathering set (8), by which it is noted that the same comprises a posterior coupling in the shape of a rack (100), whose edges are defined by two rectangular plates (101), the vertexes of which are round and hollowed (102) directed to backwards, wherein they configure bearing points that are articulated for the coupling in the edges of the distributing roller (18), whereas through the basis of said plates they are integrated with legs (103) that are fixed in the posterior portion of the structure (9) that, besides of being bordered by the boxes (10), they also have an ordinarily circular shape such as a barrier, wherein their anterior portion is open, whereas the posterior portion of which is divided into ribs (104) positioned between the bars (105-106-107-108), so that above said ribs a closure in the shape of a plate sieve (109) may be placed, which configures a lodging for the joining roller (17) and, in front of this, the double gathering roller (14), the guiding cylinder (15) and the even roller (16) are positioned.
The gathering roller (14), as it has already been said, is formed by two equal sections, as well as said gathering roller (14) is initially detailed in the FIG. 31, by which it is noted that the same is constituted by an mixed axis formed by a square tube (110), whose edges receive cylindrical ends (111) for the bearing and fixation of the means for their rotational movement whereas, along the square tube (111), are equidistantly distributed various discs (112), all of them is equally provided with ordinarily triangular plates, radially placed, which configure gathering grips (113), each disc is preferably provided with five plates or gathering grips, and furthermore, this disc has a hollowed center by a hole in the shape of a ring of round teeth (114), which cooperate with each other so that the same may be positioned in different angles in relation with the four corners of said tube (110), consequently, the grips are also each other angularly positioned in a different manner, so that said grips are not aligned, and, furthermore, such as FIGS. 31 and 32 illustrate, said discs (112) are each other equally spaced by C-shaped plate strips (115) which, by the round side, adjust onto the discs, and for such purposes, their internal side includes a perpendicular supplemented wall (116), and, furthermore, by the opposite side, the lower edge of each plate strip (115) has means (117) for fixation over the bars (116), wherein said plate strips configure means to guide the gathered material, keeping them in a sliding backward movement, among the even discs (15-16) until they reach the joining roller (17).
FIG. 34 show in details the joining roller (17), by which it is noted that the same is constituted by a central tube (118), whose capped edges include ends of axis (119) to the bearing and fixation of means for their rotational movement, as well as, two reverse threads (120-121) are placed along with said tube, whose spirals are directed in a direction to displace the gathered branches to the median portion of said roller, wherein the end of each thread at least includes a radially placed throwing shovel (122), strategically positioned to throw backwards the gathered material of the plants, driven it to the distributing roller (18).
The distributing roller (18) is illustrated in details in FIGS. 35 and 36, by which it is noted that the same, as it has been said already, received the gathered material afterwards the joining roller (17) and, for such purposes, it is constituted by a tube-shaped central portion (123), whose edges have ends of axis (124) to receive the transmission sets (11-19) that are used in their rotational movement and transmission of their movement to other sets and, furthermore, said tube (123), together with a lower sieve (125) is mounted inside the structure (1), more specifically in its front portion and inside the cylindrical box (41), wherein said tube (123) also includes two reverse threads (126-127), driven to divide the flow of the material coming from the joining roller (17) into two uniform flows that are displaced towards the edges of said tube (123), wherein sets of throwing grips (128) are provided, one set at each side, preferably provided with three grips on each side, wherein all are radially placed such as an helix, crossing over said tube (123) and, furthermore, such grips are aligned at each side, so that they proceed to throw the processed material inside the beating cylinders (20).
The sets of beating cylinders (20) are illustrated in details in the FIGS. 37 and 38, by which it is noted that the same is featured in that each of them is constituted by a combination of an ordinarily cylindrical sieve (129), longitudinally assembled inside the corresponding space in the structure (1), wherein said screen configures a true processing tunnel, and it has internally a long beating cylinder (130), in the diameter of which a transporting thread (131) develops with radial fingers (132) and grips (133) and, furthermore, the edges of the cylinder (130) have discs (134), rear and front end of axis (135), the latter of which is designed for receiving and coupling the transmission set (7) for its rotational movement, whereas the rear ones receive the transmission pulleys (136) that cooperates in order for the rotational movement of said beating rollers (20) to be transmitted for the double ventilation and discharge set (23) and, in this portion, the end of each beating roller (130) has radial shovels (137) at least, which cooperate for throwing the thick straw through the mouths of said side outlets (24). As it has been said before, onto the two beating cylinders (20) is mounted a true platform, which is the set of vibrating sieve (21), which is illustrated in details in the FIGS. 39 and 40, by which it is noted that the same is constituted by a rectangular frame (138) that cooperates to fit in the lower portion and inside the structure (1), this frame (138) being longitudinally divided by a top wall (139), so that onto its two longitudinal halves the beating cylinders (20) may work and, furthermore, these two halves are integrally filled by plate sieves (140), onto which longitudinal rulers (141) are set along, whose top borders are toothed (142) towards to grip the material under processing and to drag it backwards simultaneously with the vibration, so that this material under processing may discharge particles that are smaller than the bean grains (land, sand and others), and retaining only the beans and the thin straw, so that such materials may be driven by vibration till the end of the set, wherein said frame-shaped structure includes an outlet platform (143) which, in turn, finishes on the gathering channel of clean grains (26) and, before this one, the set passes on the double ventilation and discharge set (23) for the aspiration of the thin straw, so that only the clean grains may drop on the channel (26).
Regarding FIGS. 39 and 40 still, the structure (138) is fluctuantly fixed and, for such purposes, on its two side borders, various pieces in the shape of laminated springs (144) are distributed, whose top edges are fixed together various structural beams placed onto the frame (138), wherein the edges of said springs (144) are fixed on the supports (36) of the structure (1) and, furthermore, such as it is shown in FIG. 4, on the anterior portion of the frame (138) is mounted the vibrating set (145), which is constituted by a transversal axis (146) whose edges are in eccentric bearings (147) together with the supports (37) of the structure (1), and said eccentric bearings (147) includes vibrating arms that are coupled with supports (148), one at each side, interconnected by tubes (149), so that the latter and the supports (148) may be fixed on the frame (138), thereby finishing the necessary means for the vibration to be transmitted to said frame (138) with the rotational movement of the axis (146), whose ends of axis include pulleys (150) for coupling with the transmission systems (19).
FIG. 41 shows the first details of the spreading set (22), which comprises, initially, a transmission system (151) mounted together with the left side of the structure (1), wherein a cardan axis (152) is provided, whose edges are coupled with transmission boxes (153-154), both of which having inlet and outlet perpendicular axis, so that, in the anterior box (153), the inlet axis with the gear (155) may be coupled with the transmission (19) for the power socket, whereas the other box (154) has its outlet coupled with the axis (156) of the spreading set (22), and this axis transversally extends between the beating roller set (20) and the vibrating sieve set (21), wherein the same, such as shown in FIG. 42, include various helix-like pieces (157), that are distributed so that their shovels may shake the material under processing for the uniform distribution on the vibrating sieve (21) and to avoid abnormal accumulation.
The double ventilation and discharge set (23), such as shown in FIGS. 43-45, is integrated with plate boxes (42-43-44), in which the box (43) houses two ventilators (158), positioned above the end of the beating roller set (20) and vibrating sieve (21), as well as each section (43) of the ventilator (158) has an internal and vertical division (159) followed by another external one (160), both of which are transversal, forming an ascending duct (161), whose lower mouth is positioned on the end of the vibrating sieve (21), so that an ascending flow of aspiration may be obtained, which, through the opening (162), configures a passageway for aspiration of the thin straw existing at the end of the vibrating sieve (21), this ascending flow is unified between the two ventilators (158) through passageways (163), which are unified to configure an outlet of thin straw (25) and, furthermore, this air flow may be regulated in relation with the pressure and speed through the false air inlet defined by obturator openings (164) and, finally, each ventilator (158) has its axis equipped with a pulley (165) which, by means of belts (166), are coupled with the pulleys (136) of the beating rollers (20), which thereby takes advantage from the takeoff of the same to also make the ventilators to takeoff (158).
The gathering channel set of clean grains (26) and the corresponding double horizontal transportation set (27A-27B) are illustrated in details in the FIGS. 47-51, by which it is noted that the same (FIGS. 47 and 48) is formed by a V-shaped channel/sieve (167), transversally mounted inside that box-shaped projection (44), this channel being positioned on the end of the vibrating sieve (21), as well as the two transportation threads (27A-27B) lodges inside it, which rotates and have their threads provided for moving the grains from the central portion to the edges of the channel (167), wherein the vertical transportation elevators (28) for clean grains are placed, one at each side, (FIG. 49), internally provided with transporting mugs (168) that are moved by adequate chain (169) coupled with toothed wheel (170) existing in the axis of the sets (27A-27B), which also occurs in the top portion (171), wherein each elevator is projected forwards in inclined ducts (172) that run inside the grain bucket (29) and, furthermore, such as shown in FIGS. 50 and 51, the transportation takeoff (27A-27B) and the elevator takeoff (28) are done by a side transmission (173) and the corresponding gear (174) which, in turn, through the chain (175), is coupled with other gear (176) mounted on the axis of the transmission box (154) of the spreading set (22), said gear (174) being fixed to the edge of an axis (177) which transversally develops until the central portion of the machine, wherein its edge receives other gear (178) which, by means of chain (179), is coupled with a gear (180) coupled at the joining point of the transporter (27AB) in the center of the machine.
The grain bucket (29) is illustrated in details in the FIGS. 52 and 53, by which it is noted that the same comprises an assembling structure in the shape of triangular racks (181), one of which is anterior and another, posterior, appropriately fixed on the structure (1), wherein one of the vertexes of said racks runs outwards from the right side of the machine, where said vertexes are interconnected by an axis (182) and, on the latter, the grain bucket (29) is jointly coupled (183) and, at this same fixation point, said bucket includes a discharge mouth (184), which is slightly higher and integrates in an inclined shape with the side corresponding to the referred to bucket which, furthermore, includes two hydraulic cylinders (185), one of which is anterior and the other, posterior, to rise said bucket, which, finally, includes a top hatchway (186), anterior openings for internal views (187) and those inclined ducts (172), which only meet with the elevators (28) through an approximation joint (188).
As FIG. 54 illustrates, for a better distribution of the load inside the grain bucket (29), two V-shaped spreading threads are placed (189), coupled with each other by a transmission box (190), one of which also includes the takeoff by hydraulic engine (191). In this condition, the accumulated load inside said bucket is dispersed, thereby avoiding the accumulation in the central portion thereof.
The operation of the agricultural implement in reference is really very easy since, as it has been said already, it is classified as a trailered type, consequently, it is capable of working with a conventional tractor power socket and, for such purpose, a universal coupling is provided, defined by the shaft (6) and takeoff system (7) to be coupled with the tractor power socket. This takeoff, by means of synchronization and various transmission boxes, allows the simultaneous takeoff of all parts of the machine, which still includes hydraulic components that are also coupled with the tractor hydraulic system, fitting all the set to be put in motion by an operator only, who handles the tractor. All the equipment has been developed to have a double width, that is, it allows to collect numerous plants, such as bean, peanut and other grain plants, these plants being previously plucked and aligned, whereas the second function is carrying out a whole cleaning process by separating the grain (seeds) from the remaining unwanted parts. Simultaneously with the displacement of the set over the aligned material, the double gathering set (14) is rotating, which cooperates to grip and rise two plant alignments and driven them upwards and backwards, a guiding cylinder (15) being placed on the double gathering roller, which rotates in the opposite direction and cooperates to keep or to guide the displacement of the branches backwards, wherein another equally even posterior roller (16), with a smaller diameter however, has a similar function of guiding said branches so that the same may be received by the joining roller (17), wherein the material is concentrated at the central portion of the machine and, afterwards, it is thrown backwards by the joining roller (17) and towards the distributing roller (18) which, in turn, is also transversally mounted in the initial portion of the structure (1), wherein said roller (18) divides the material flow into two uniform flows and throws them backwards inside two beating cylinder sets (20), which cooperate to separate the grains from the unwanted remainders, however, minor grains and particles drop on a wide set of vibrating sieve (21), which are positioned on said beating cylinders (20), so that, on said sieve, the grains and other light particles (thin straw) may be retained, whereas particles such as land and sand, smaller than said grains, drop free directly to ground. In this same portion, the spreading set (22) arranges the material on the vibrating sieve (21), avoiding that the same is abnormally accumulated. The beating cylinders (20) separate grains and particles smaller than the same (thin straw) and retain the heavier and bulkier material, mainly leaves, branches and others (thick straw), displacing them backwards, wherein said beating cylinders run inside a double ventilation and discharge set (23), whose lower portion has side outlets for thick straw (24) and, in the central portion, includes an outlet for thin straw (25) and, furthermore, under such set, the posterior portion of the vibrating sieve set (21) also runs, so that all of its transversal border may be over a transversal set defined as gathering channel of clean grains (26) and the corresponding double horizontal transportation set, the latter two rotate in reverse directions and cooperate for the clean grains to be displaced from the center to the side of the machine into two different flows and uniformly divided, concentrating the clean grains in the edges of the gathering channel (26), wherein they are positioned on ascending tunnels slightly inclined backwards, one at each side, which constitute vertical transportation elevators (28) for the clean grains, these elevators having top edges that run inside the top portion of a grain bucket (29), wherein the entirely clean grains are stored for a later discharge by inclination of said grain bucket (29).
Patent Application
20080295476
