JP3589782B2 - Oscillating sorter in threshing machine - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a rocking sorter in a threshing machine, and in particular, a sheave group having a variable opening is juxtaposed at the end side of a non-porous transfer plate of a rocking sorter installed in a sorting air path, By adjusting the opening degree of the group, the leak start position of the transferred object is automatically adjusted as appropriate according to the amount of the object remaining on the rocking sorter. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rocking and sorting apparatus in a threshing machine in which the thickness is kept constant.
[0002]
[Prior art]
Generally, in a threshing machine having a wind sorting chamber at the rear of the handling cylinder in the axial center direction and having a swing sorting body erected in a sorting wind path formed toward the wind sorting chamber from the lower front of the handling cylinder, Separation and separation of processed materials into first-class, second-class, and other debris such as rice husks by the specific gravity sorting action of the swing sorting body by the back and forth swinging motion and the wind sorting action by the sorting wind that blows through the sorting wind path. After dropping the first thing to the first gutter and collecting it in the paddy tank by a fryer, the second thing is dropped to the second gutter and returned to the rocking sorter by the second reduction cylinder and re-selected. The rice husks are sucked by a suction fan in a wind selection chamber and discharged out of the machine through a dust outlet at the rear of the machine.
[0003]
In the specific gravity sorting operation by the swing sorter as described above, in the transfer sorting path, the grains are separated through sufficient transfer swing motion so that impurities such as grain are located in the lower layer and rice husks are located in the upper layer. It is important to extend this transfer sorting path toward the rear of the fuselage to obtain a highly accurate specific gravity sorting action, especially when the transfer amount of the processed material is relatively small. It has been found that it appears remarkably.
As a specific sorting operation of the first thing of the swing sorting body, a non-porous transfer plate is arranged at the swing start end side, and a plurality of sheaves are arranged at the swing end side behind the swing transfer plate. The upper sorting section and the crimping net disposed below the upper sorting section are oscillated relative to each other, so that the first object is leaked to the gutter first.
[0004]
However, in the configuration in which the threshing processing capacity is strengthened with the increase in the size of the threshing machine as in recent years, since the swinging motion of the rocking sorter is performed at a constant operation, the rocking sorter can be used when the threshing amount increases. The sorting capacity is relatively reduced, the thickness of the stagnation layer of the processed material from the upper sorting section to the sieve is increased, and the layered separation of impurities such as grains and rice husks is incomplete, and branch shoots and ear breaks Is most likely to be mixed into the gutter, and when the amount of threshing is small, the sorting ability of the oscillating sorter becomes relatively high. As the thickness of the stagnation layer decreases, the amount of reduction to the second gutter by the wind selection increases, which not only hinders the wind selection in the second gutter, but also causes differences in varieties of rice, wheat, etc. Or not, or the degree of sheave formation that forms the transfer sorting path Sorting wind magnitude, various factors increases the degree of incorporation of contaminants by intertwining complex etc., it was those containing the problem.
[0005]
[Problems to be solved by the invention]
The present invention has been conceived in view of the above situation to solve the conventional problems, and has as its object the necessity for the specific gravity sorting action when the transfer amount of the processed material is small. When the transfer amount of the processed material increases while the transfer sorting path can be secured long enough, the leak start position and the leak amount of the processed material in the transfer sorting route are transferred without holes. Depending on the increase or decrease in the thickness of the stagnation layer of the processed material from the end of the plate to the rear sheave, the material to be processed can be changed from the transfer sorting operation to the air sorting operation while minimizing the contamination of contaminants as much as possible. It is an object of the present invention to provide an oscillating and sorting apparatus in a threshing machine capable of always maintaining a smooth flow.
[0006]
[Means for Solving the Problems]
In order to solve the problem, a technical means adopted by the present invention is to provide a non-porous transfer plate between the front portions of the oscillating side plates facing away from each other, and to fix a rotating rod along one side edge in the longitudinal direction. A plurality of sheaves are pivotally supported in parallel between the rear portions of the swinging side plates extending from the end side of the non-hole transfer plate to the rear through the rotating rods, and the crimping net is horizontally adjusted below the lower portion thereof. A threshing machine stretched freely, wherein the other side edge of each of the sheaves is pivotally connected to a connecting plate for each of a plurality of sheaves from a front group to a last group, and A pivot arm is pivotally supported at one end of one pivot rod for each group, and a cam portion to which the tip side of each pivot arm individually abuts is formed integrally at a required interval. The cam plate and the crimp net are linked and connected via a link mechanism, A single drive source is used to perform the variable operation of the sheave opening independently for each group by the rotating operation of the rotating arm to follow, and the fixed position moving operation of the crimp net in the horizontal direction. It is a feature.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In FIG. 1, reference numeral 1 denotes a handling room of a threshing machine mounted on a traveling body (not shown). In the handling room 1, a handling cylinder 3 is mounted on a handling cylinder shaft 2 which is suspended in the longitudinal direction of the body. A layer thickness sensor 5 that is rotatably mounted on a shaft and that is rotatable up and down near the receiving net 4 stretched below the lower side of the receiving net 4 is provided. An oscillating sorter 8 composed of a plate-shaped non-porous transfer plate 6 and a plurality of sheaves 7, 7,... Have been.
[0008]
Below the rocking sorting device 10, there is formed a sorting wind path 13 composed of a karano 11 and a first flow plate 12, and a sorting wind A from below directed toward the rocking sorting device 10 that swings. The second item on the rack 15 is configured to be selected and separated by the selection wind B sent from the auxiliary Karin 14 disposed behind the selection air passage 13 by selecting the items. Impurities are discharged to the outside of the machine from a dust outlet 17 at the rear of the machine via a suction fan 16.
Reference numeral 18 denotes a first spiral, 19 denotes a second spiral, 20a and 20b denote wind direction plates, and 21 denotes a second flow plate.
[0009]
As shown in FIGS. 2 to 4, the swing sorting apparatus 10 has an upper non-porous transfer plate 6 stretched over the upper surfaces of swing side plates 22a and 22b spaced apart from each other in the left-right direction of the fuselage. A plurality of sheaves 7, 7,... Having variable opening degrees are arranged side by side from the section toward the rear in the transfer direction to form a swing sorting body 8, and a lower solid hole is provided at a position below the swing sorting body 8. The transfer plate 23 is disposed in parallel, and the crimp net 9 is stretched in one plane on auxiliary brackets 24, 24 that can swing back and forth and extend from the end to the rear at the left and right positions. ing.
[0010]
The upper ends of the sheaves 7, 7 are fixed at predetermined intervals to pivot rods 25, 25 penetrating between the swinging side plates 22a, 22b, respectively, and each lower end is formed of three connecting plates. 26a, 26b, and 26c are connected to form a sheave group of a front group 7A, a center group 7B, and a rear group C, and are mounted between the connection plates 26a to 26c and the swing side plates 22a, 22b. The sheaves 7, 7... Of the sheave groups 7A, 7B, 7C are grouped by the coil bullets 27, 27, 27 in the expanding direction in which the degree of opening increases from the pivot rods 25, 25. And one of the rotating rods 25, 25... For fixing the sheave 7 'to each of the sheave groups 7A, 7B, 7C. The rod 25a extends outward from the swinging side plate 22a and rotates around its tip. Respectively shaft-supporting arms 27a, 27b, 27c and, further on the tip of the each rotational arm 27a~27c is cam roller 28a which is provided around the guide grooves 28, 28b, 28c are pivotally supported.
[0011]
On the other hand, on the outer surface of the one oscillating side plate 22a, a oscillating cam plate 30 having a rack gear 29 integrally formed on the lower edge of the tip is provided with supporting rollers 30a, 30b projecting from the oscillating side plate 22a. The front cam portion 31, the central cam portion 32 and the rear cam portion 33 are formed along the upper edge of the oscillating cam plate 30 so as to be able to advance and retreat in the front-rear direction. Into the respective guide grooves 28 of the cam rollers 28a, 28b, 28c, and the rotating arms 27a, 27b, 27c are individually rotated in the vertical direction, and the sheaves 7 'fixed to the respective rotating arms 27a to 27c. Are transmitted to the other sheaves 7, 7,... Forming the front group 7A, the center group 7B, the rear group C, respectively, via the connecting plates 26a to 26c, and the sheaves 7, 7 for each of the groups 7A to 7C. 7. Open and close synchronously And it has a configuration. In FIG. 4, the sheaves 7 ', 7... Of each of the groups 7A to 7C are held at the minimum opening.
[0012]
Similarly, a gear motor 35 having a pinion gear 34 meshing with the rack gear 29 of the swing cam plate 30 protruding outward is fixed on the inner surface of the one swing side plate 22a. A pulse signal of a required count, which is transmitted through a CPU 36 described later in response to a change in the detection signal from 5, is transmitted to the gear motor 35 to control the forward and backward movement of the swing cam plate 30.
[0013]
FIG. 11 shows the positional relationship between the cam rollers 28a, 28b, 28c of each of the groups 7A to 7C shown in FIG. 4 and the front cam portion 31, the center cam portion 32, and the rear cam portion 33 of the swing cam plate 30. The cam rollers 28a to 28c are respectively provided in the central region of the upper edge 31a of the front cam portion 31, the first half region of the upper edge 32a of the central cam portion 32, and the front end of the upper edge 33a of the rear cam portion 33. When the pinion gear 34 of the gear motor 35 meshing with the rack gear 29 is rotationally driven, the cam rollers 28a to 28c respectively move the upper edges 31a, 32a, 33a with respect to the swing cam plate 30 moving in the X direction. When the cam roller 28c, which is located at the front end of the upper edge 33a of the rear cam portion 33, moves from the inclined edge 33b to the lower edge 33c, the rear group 7C is first opened. With the swing cam plate 30 further moving in the X direction, the cam roller 28b changes the opening of the central group 7B between the beveled edge 32b and the lower edge 32c, and finally the cam roller 28a is moved to the beveled edge 31b. The front group 7A is configured to be in a variable opening degree from the position to the lower step edge 31c.
[0014]
On the other hand, the auxiliary brackets 24, 24, which can swing back and forth, which support the crimp net 9, have elongated holes 38, 39 formed in the swinging side plates 22a, 22b with support pins 37a, 37b at front and rear separated positions. The mesh driving plate 40, the connecting rod 41, and the distal end side are connected to the connecting pin 43 of the swing cam plate 30 through the elongated hole 42, and penetrate and project outward. The rotational movement of a single gear motor 35 which advances and retreats the oscillating cam plate 30 via a link mechanism 45 composed of the driven rods 44, causes the crimping net 9 to swing forward and backward by opening the sheaves 7 ', 7,. The movement is linked.
[0015]
Reference numeral 46 denotes a potentiometer fixedly mounted on the swinging side plate 22a below the crimped net 9 at the stretched position, and a rotation base end of a detection rod 48 having an engagement pin 47 protruding at a tip thereof is connected to the potentiometer 46. The engaging pin 47 of the detection rod 48 is engaged with the notch groove 49a of the engagement rod 49 which is supported by the actuator shaft 46a and is integrally hung from the lower edge of the main body of the swing cam plate 30 to perform the swinging operation. The swinging movement amount of the cam plate 30 is detected as a rotation displacement amount by a potentiometer 46 and, as shown in FIGS. 5 and 6, a liquid crystal panel monitor 52 disposed on a panel surface 51 of a driving operation unit 50 via a CPU 36. The state of the swing sorting operation is displayed.
Reference numeral 53 shown in FIG. 6 is a group of switches such as a main switch, a reaping clutch SW, and a work clutch SW arranged on the panel surface 51.
[0016]
The basic operation of the sheaves 7 ', 7,.
In FIG. 4, when the threshing work is started while the mowing work is first performed by the machine running, the front group 7 </ b> A to the rear group 7 </ b> C forming the rocking sorting body 8 until the predetermined thickness is reached by the detection of the layer thickness sensor 5. Are held at the minimum opening shown in FIG.
[0017]
When the thickness of the processed material on the oscillating sorter 8 gradually exceeds the upper limit of the predetermined reference layer thickness as the threshing operation proceeds, a required number of pulse drive signals are sent from the CPU 36 to the gear motor. When the pinion gear 34 and the rack gear 29 mesh with each other, the swing cam plate 30 moves linearly from the position shown in FIG. 4 in the direction of the arrow shown in FIG. 7B.
[0018]
With the movement of the swing cam plate 30, the cam roller 28c located at the upper edge 33a of the rear cam portion 33 of the swing cam plate 30 relatively moves to the middle region of the inclined edge 33b, and the rotating arm 27c is moved. The sheave 7 'pivots downward and the sheave 7' also pivots downward with the pivot rod 25a as a base, and the other sheaves 7, 7, 7 forming the rear group 7C are connected to the rotation of the sheave 7 '. It will rotate synchronously via the plate 26c. At this time, the cam rollers 28a and 28b located at the upper edges 31a and 32a of the front cam portion 31 and the central cam portion 32 also move relatively similarly to the cam roller 28c, but the cam rollers 28a and 28b still , 32 are held on the upper edges 31a, 32a, so that the opening change of the sheaves 7 ', 7,... Of the front group 7A and the center group 7B is held at the initial minimum opening.
[0019]
Therefore, as shown in FIG. 7A, during the swinging movement of the swing sorting body 8, the shedding amount of the processed material increases due to a change in the opening degree of the sheaves 7 ', 7 of the rear group 7C, and as a result, threshing occurs The actual layer thickness of the processed material approaches a predetermined reference layer thickness where grains such as grain are located in the lower layer and impurities such as rice husks are located in the upper layer.
[0020]
In the opening control operation of the sheaves 7 ′ and 7 of the rear group C as described above, the crimp net 9 connected to the swing cam plate 30 via the link mechanism 45 is in the direction indicated by the arrow in FIG. Go to In other words, the distance between the tip 9a of the crimping net 9 and the upper end of the slope of the first flow plate 12, which is shown as the distance S in FIG. 4, changes to the distance S1 wider than the initial distance S.
[0021]
Then, a part of the processed material on the crimp net 9 whose leakage amount has increased flows down to the most gutter side along the slope of the first flow plate 12 from the interval S1, and the processed material on the crimp net 9 concerned. Is maintained at a constant thickness, and the wind-down force, which is stronger than the blow-through effect on the processed material forming a layer on the crimp net 9, acts on the flowing-down processed material. As a result, the processed material in the flow-down process is subjected to the sorting operation on the flow plate 12 first.
[0022]
FIGS. 8 to 10 show the gradual change of the sheave opening of each of the front group 7A, the center group 7B and the rear group 7C according to the increase when the throughput of the threshing operation is further increased. 8, the sheaves 7 'of the central group 7B are kept in a state where the sheaves 7', 7... Of the rear group 7C maintain the maximum opening degree, that is, the cam roller 28c is located on the lower edge 33c of the rear cam 33. , 7,... Are in a variable opening state due to the cam roller 28b being positioned on the beveled edge 32b of the central cam portion 32, and the sheaves 7 ′, 7,. Accordingly, the leading edge of the crimp net 9 is further expanded at the interval S2 between the crimp net 9 and the first flow plate 12.
[0023]
9, only the sheaves 7 ', 7... Of the front group 7A are in the state of variable opening due to the cam roller 28a being positioned on the oblique edge 31b of the front cam portion 31, and the other central group 7B and rear group 7C is maintained at the maximum opening degree by the cam rollers 28b and 28c being located at the lower edges 32c and 33c, respectively. In FIG. 10, all the groups 7A, 7B, and 7C show the maximum opening degree, that is, the case where the threshing capacity is maximum. It is in a state of being expanded at the interval S4.
[0024]
In the swing operation of the swing sorting body 10 as described above, in the present invention, in particular, the variable operation of the sheave opening degree by the forward and backward movement of the swing cam plate 30 and the horizontal direction of the crimp net 9 via the link mechanism 45. Is moved by the rotation of the single gear motor 35, so that the openings of the sheaves 7 ', 7, ... having different operation contents do not require a complicated mechanism configuration and control contents. The variable operation and the movement operation of the crimp net 9 can be easily and reliably linked.
[0025]
Therefore, in response to the swing change of the swing cam plate 30, that is, the gradually changing operation of the opening degree of each of the sheaves 7, 7. The amount of parallel movement of the crimping net 9 in the direction of separation can be changed at any time, and when the opening of each of the sheaves 7, 7 is greatly changed with an increase in threshing amount, the amount of leakage increases. By appropriately flowing the treated material on the crimping net 9 that gradually increases along the slope of the first flow plate 12 to the most gutter side from the interval S to the maximum interval S4 according to the increase amount. The thickness of the processed material on the crimping net 9 can be kept constant, and the oscillating wind selection on the crimping net 9 and the wind selection on the flowing-down processed material cooperate with each other to thresh. A flexible and smooth swing sorting operation can be maintained with respect to an increase in the amount.
[0026]
【The invention's effect】
In short, in the present invention, a plurality of sheaves formed by providing a non-porous transfer plate between the front portions of the oscillating side plates facing away from each other and fixing a rotating rod along one side edge in the longitudinal direction are provided. A threshing machine in which a crimping net is horizontally supported between a rear portion of a swinging side plate extending from an end side of a non-hole transfer plate to a rear side through a moving rod, and a crimp net is stretched below the horizontal side so as to be adjustable in a horizontal fixed position. The other side edge of each sheave is pivotally connected to a connecting plate for each of a plurality of sheaves from the front group to the last group. A pivoting arm plate is pivotally supported at one end of a rod, and a swing cam plate formed integrally with a cam portion at which a tip end of each of the pivoting arms individually abuts at a required interval is linked to the crimp net. Rotating operation of the rotating arm linked to the above cam sections by interlocking connection via a mechanism The variable operation of the sheave opening independently for each group and the operation of moving the fixed position of the crimp net in the horizontal direction by a single drive source are performed by a single drive source. The leak start position of the transferred material is automatically adjusted appropriately according to the magnitude of the amount of the processed material remaining on the non-porous transfer plate, and the thickness of the stagnant layer of the processed material on the non-porous transfer plate is adjusted. It can be maintained at a constant level, and imperfect laminar separation due to an increase in the thickness of the stagnant layer of the processed material without deteriorating the sorting ability of the oscillating sorter against an increase in the threshing processing amount, or branch spikes, ears In addition to eliminating the problem that the cuts are mixed into the gutter first, the layer thickness of the processed material on the crimp net can be kept constant by reliably following the processed material amount increasing at an accelerated rate. The effect of oscillating wind selection on crimped nets The wind selection function can cooperate with each other, and not only can a flexible and smooth rocking and sorting operation be held against an increase in the threshing amount, but also without the need for a complicated mechanism configuration and control contents, Since the independent sheave opening variable operation and the crimping net moving operation can be easily and reliably linked for each group with different operation contents, high-precision specific gravity sorting operation is always performed regardless of the threshing amount. This is an extremely useful novel effect that can be obtained.
[Brief description of the drawings]
FIG. 1 is an overall side view of a threshing machine. FIG. 2 is a side view of a swing sorting device. FIG. 3A is a plan view showing the arrangement of a crimp net, a swing cam plate, a swing side plate, and the like. FIG. 4 is a plan view of a main part showing an arrangement of a gear motor, a swing cam plate, and a potentiometer. FIG. 4 is an enlarged side view of a main part showing a configuration of a swing sorter with a part cut away. FIG. FIG. 6B is a plan view of a liquid crystal panel monitor. FIG. 6 is an explanatory view showing a switch group, a gear motor, a potentiometer, and a connection between the liquid crystal panel monitor and a CPU. FIG. FIG. 8 (b) is a partially explanatory side view showing a movable state of the swing cam plate, and FIG. 8 (a) is a partially omitted side view showing a variable sheave opening state of the central group. FIG. 9B is an operation explanatory view showing the moving state of the swing cam plate. (A) is a partially omitted side view showing a variable opening state of the sheaves of the front group. (B) is an operation explanatory view showing a moving state of the swing cam plate. A partially omitted side view showing a maximum opening state is an operation explanatory view showing a moving state of the oscillating cam plate. FIG. 11 shows a connection driving state of a crimp net via the oscillating cam plate and a link mechanism. Explanation of operation of main parts [Explanation of reference numerals]
6 Non-porous transfer plate 7 Sheave 7 'Sheave 7A Front group 7B Central group 7C Rear group 8 Swing sorting body 9 Crimp net 22a Swing side plate 22b Swing side plate 25 Rotating rod 25a Rotating rod 26a Connecting plate 26b Connecting plate 26c Connecting plate 27a Rotating arm 27b Rotating arm 27c Rotating arm 30 Swing cam plate 31 Front cam portion 32 Central cam portion 33 Rear cam portion 35 Gear motor (drive source)
45 Link mechanism A Sorting airway B Sorting airway

Claims (1)

A plurality of sheaves formed by providing a non-porous transfer plate between the front portions of the oscillating side plates opposed to each other and having a rotating rod fixed along one side edge in the longitudinal direction are non-porous through the rotating rod. A threshing machine in which a crimp net is horizontally supported between the rear portions of the swinging side plates extending from the end side of the transfer plate to the rear, and a crimping net is stretched below the lower side so that the horizontal fixed position can be adjusted. The side edge is pivotally connected to the connecting plate for each of a plurality of sheaves from the front group to the last group, and a rotating arm is attached to one end of one of the rotating rods of each group. Are pivotally supported, and the swinging cam plate, which is formed integrally with a cam portion at which the tip end side of each of the above-mentioned rotating arms individually contacts with a required interval, and the crimp net are linked and connected via a link mechanism. And an independent system for each group by the rotation operation of the rotation arm following the respective cam portions. And variable operation of the probe opening, and a fixed position movement operation in the horizontal direction of the crimp network, oscillating sorter in threshers, characterized by being configured to perform a single drive source.

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