JP3584116B2 - Oscillating sorter in threshing machine - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention provides a process in which a sheave group having a variable opening is juxtaposed at the end side of a non-porous transfer plate of an oscillating sorting body installed in a sorting air passage, and the sheave group is transferred by a variable opening operation. In a threshing machine in which the leak start position of the material is automatically adjusted as appropriate according to the magnitude of the amount of the processed material staying on the rocking sorter, so that the thickness of the stagnant layer of the processed material is kept constant. The present invention relates to a rocking sorter, and more particularly to a rocking threshing machine in which a drive source for driving a group of sheaves having a variable opening can be provided inside a rocking side plate constituting a rocking sorter to make it compact. The present invention relates to a sorting device.
[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. A flow source can be constantly maintained smoothly, and a drive source for variably driving the sheave and a potentiometer for detecting the variable opening degree of the sheave are compactly mounted inside a swinging side plate constituting a swing sorting body. Installation, inspection and maintenance work Degradation of the oscillating sorting body with, is intended to provide an oscillating sorting apparatus in threshing machine capable of improving the assembling property.
[0006]
[Means for Solving the Problems]
In order to solve the problem, a first technical means adopted by the present invention is to provide a non-perforated transfer plate at a front portion between oscillating side plates opposed to each other, and to rotate a rod along one side edge in a longitudinal direction. A threshing machine in which a plurality of sheaves each having a plurality of sheaves fixed thereto are pivotally supported in parallel between a rear portion of a swinging side plate extending from the end side of the non-hole transfer plate to the rear through the rotating rod, The other side edge is pivotally connected to the connecting plate for each of the plurality of sheaves, and the opening degree of each sheave that swings with the rotating rod as a fulcrum is synchronized with the forward and backward swinging motion of the connecting plate to synchronously vary. In addition, a drive source for swinging the connection plate is attached to the inner surface of one of the swinging side plates, and as a second technical means, on the inner surface of the one of the swinging side plates, It is equipped with a potentiometer that detects the current opening of the sheave that has been changed to the required opening position. Than it is.
[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]
Each of the upper ends of the sheaves 7, 7 ... is fixed at predetermined intervals to pivot rods 25, 25 ... penetrating between the swinging side plates 22a, 22b, and each lower end has three ends. Are connected to the connecting plates 26a, 26b, and 26c to form a sheave group of a front group 7A, a center group 7B, and a rear group 7C, between the connecting plates 26a to 26c and the swing side plates 22a, 22b. The sheaves 7, 7,... Of the sheave groups 7A, 7B, 7C in the expanding direction in which the degree of opening increases with the pivot rods 25, 25,. Of the rotating rods 25 for fixing the sheaves 7, 7,..., One for each of the sheave groups 7A, 7B, 7C. Is extended outwardly of the swinging side plate 22a and has its tip Respectively pivotally supported pivot arm 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 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 support 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 forming the front group 7A, the center group 7B, the rear group C via the connecting plates 26a to 26c, respectively, and the sheaves 7 are provided for each of the groups 7A to 7C. , 7 ... and 7 ' Are synchronously opened and closed.
[0012]
Similarly, a gear motor 35 projecting outward from a pinion gear 34 meshing with the rack gear 29 of the swing cam plate 30 is fixedly mounted on the inner surface of the swing side plate 22a. A pulse signal of a required count, which is transmitted via a CPU 36 described later in response to a change in the detection signal, is transmitted to the gear motor 35 to control the forward / backward movement of the swing cam plate 30.
[0013]
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, which are loosely fitted with the one support pin 37 a, are fitted to the connecting pins 43 of the swing cam plate 30 through the elongated holes 42. The link mechanism 45 including the driving rod 44 connects the sheaves 7, 7,... Through the swing cam plate 30 with the opening movement of the sheaves 7, 7,.
[0014]
The mesh driving plate 40 of the link mechanism 45 has a lower end pivotally supported on the swinging side plate 22a by a fixing pin 40a, and a long hole 40b for loosely fitting the support pin 37a of the auxiliary bracket 24 at the upper end thereof. The other end of the connecting rod 41 having one end pivotally connected to the driving rod 44 is pivotally connected to the right half of the mesh driving plate 40, and the intermediate part of the driving rod 44 is swung by a fixing pin 44a. The connecting pin 43 pivotally supported by the side plate 22a and inserted into the long hole 42 on the distal end thereof moves in the long hole 42 with the forward and backward movement of the swing cam plate 30, and thereby the fixing pin 44a is moved. By rotating the driving rod 44 as a fulcrum, the mesh driving plate 40 to which the rotating power is transmitted via the connecting rod 41 is rotated with the fixing pin 40a as a fulcrum. Hole 40b The support pin 37a loosely fitted is moved along the long hole 38 of the swing plate 22a, and is configured to translate the support brackets 24 and 24 for supporting crimping network 9 in the front-rear direction.
[0015]
Reference numeral 46 denotes a potentiometer fixedly attached to the inner surface of the swinging side plate 22a below the tensioning position of the crimping net 9, and the rotation base end of the detection rod 48 having an engagement pin 47 protruding at the tip is connected to the above-mentioned base. The detection rod is supported by the actuator shaft 46a of the detection portion 46 'protruding from the outer side surface of the oscillation side plate 22a, and is inserted into the notch groove 49a of the engagement rod 49 integrally hanging from the lower edge of the main body of the oscillation cam plate 30. 48, the amount of swing movement of the swing cam plate 30 is detected as a rotational displacement amount by the potentiometer 46, and the driving operation is performed via the CPU 36 as shown in FIGS. The state of the swing sorting operation is sequentially displayed on a liquid crystal panel monitor 52 provided on a panel surface 51 of the unit 50.
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 the swing sorting apparatus 10 configured as described above, in which the opening degrees 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 oscillating cam plate 30, the cam roller 28c located at the upper stage of the rear cam portion 33 of the oscillating cam plate 30 relatively moves to the middle region of the bevel, and the rotating arm 27c turns downward. And the sheave 7 'also pivots downward from the pivot rod 25a, and the other sheaves 7, 7, 7 forming the rear group 7C linked to the pivoting of the sheave 7' move the connecting plate 26c. It will be rotated synchronously via. At this time, the cam rollers 28a and 28b located at the upper stage of the front cam portion 31 and the center cam portion 32 also relatively move similarly to the cam roller 28c, but the cam rollers 28a and 28b are still at the upper stage of the respective cam portions 31 and 32. .. Of the front group 7A and the central group 7B are kept at the initial minimum opening degree.
[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.
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.
[0020]
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.
[0021]
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 ', 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 positioned below the rear cam portion 33. .. Indicate that the cam roller 28b is positioned at the oblique edge of the central cam portion 32 and thus the opening degree is variable, and the sheaves 7 ', 7... Of the front group 7A are held at the minimum opening degree. Along with this, the leading edge of the crimping net 9 is further expanded at the interval S2 between the crimping net 9 and the first flow plate 12.
[0022]
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 of the front cam portion 31, and the other central group 7B, rear group 7C Is kept at the maximum opening, and the leading edge of the crimping net 9 is widened at the interval S3 between the crimping net 9 and the first flow plate 12, and in FIG. 10, all the groups 7A, 7B, 7C This shows a case where the maximum opening degree, that is, the threshing capacity is the maximum, and the leading edge of the crimping net 9 is also expanded at the maximum interval S4 between the crimping net 9 and the first flow plate 12.
[0023]
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. When the amount of parallel movement of the crimping net 9 in the direction of separation in the direction of separation changes at an accelerating rate, and the opening of each of the sheaves 7 is greatly changed with an increase in the amount of threshing, the amount of leakage The workpiece on the crimping net 9 which increases at an accelerating rate flows down to the most gutter side along the slope of the first flow plate 12 from the interval S to the maximum interval S4 according to the increase amount. Thereby, the layer 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. , Can maintain a flexible and smooth rocking sorting operation against an increase in threshing amount
[0024]
In the swing operation of the swing sorting device 10 as described above, in the present invention, in particular, the swing cam plate 30 having the arm 27a, the cam roller 28a and the like provided outside the one swing side plate 22a, In addition to a mechanical driven system having a complicated connection structure such as a link mechanism 45 composed of a mesh driving plate 40 to a driving rod 44, a gear motor 35 for driving the swing cam plate 30 and opening of each of the sheaves 7, 7,. A drive detection system, which requires an electrical connection consisting of a potentiometer 46 for detecting a degree-variable state, is mounted on the inner surface of the oscillating side plate 22a, so that a complicated overall configuration is arranged compactly for each function. It is possible to easily perform connection and removal of electric wiring and couplers during inspection and maintenance work, and it is possible to improve disassembly and assembly of the swing sorter.
[0025]
【The invention's effect】
In short, according to the present invention, a plurality of sheaves having a non-porous transfer plate provided at a front portion between oscillating side plates opposed to each other and having a rotating rod fixed along one side edge in the longitudinal direction are provided. A threshing machine pivotally supported in parallel between a rear portion of a swinging side plate extending rearward from a terminal side of a non-hole transfer plate through a moving rod, wherein the other side edge of each of the sheaves is provided for each of a plurality of sheaves. A drive source that pivotally connects to the connecting plate and synchronizes and varies the opening of each sheave that swings with the pivot rod as a fulcrum in conjunction with the forward and backward swinging motion of the connecting plate, and also drives the connecting plate to swing. Is attached to the inner surface of one swinging side plate, and a potentiometer for detecting the current opening of the sheave that has been changed to the required opening position is attached to the inner surface of the one swinging side plate. , The opening of the sheave group can be changed, and the leak start position of the transferred material is set on the non-porous transfer plate. It automatically adjusts appropriately according to the size of the processed material to be retained, and can keep the thickness of the retained layer of the processed material on the non-porous transfer plate constant. It is possible to eliminate incomplete laminar separation due to an increase in the thickness of the stagnant layer of the processed material, or the problem that branch spikes, spikes, etc. are mixed into the gutter without reducing the ability to sort the body. For a complicated overall configuration consisting of a mechanical driven component required for variable drive of the opening and an electrical drive component required for variable drive of the sheave, these components are provided on the inner and outer surfaces of the swinging side plate for each function. It can be installed compactly, so that it is easy to connect and remove electrical wiring and couplers for inspection and maintenance work, and it is possible to improve disassembly and assemblability of the swing sorter. Very useful new effects It is intended.
[Brief description of the drawings]
FIG. 1 is an overall side view of a threshing machine. FIG. 2 is a side view of an oscillating sorter. FIG. 3A is a plan development view showing an arrangement of a crimp net, an oscillating cam plate, an oscillating side plate, and the like (b). ) Is a plan view of the main part showing the arrangement of the gear motor, the oscillating cam plate and the potentiometer. FIG. 4 is an enlarged side view of the main part showing the configuration of the oscillating sorter with a part cut away. FIG. 6 (a) 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. A side view (b) showing a variable opening degree state is an operation explanatory view showing a moving state of the oscillating cam plate, and FIG. 8 (a) is a partial omission showing a central group sheave opening degree variable state. Side view (b) is an operation explanatory view showing the moving state of the oscillating cam plate. 9 (a) is a partially omitted side view showing a variable opening state of the sheaves of the front group. FIG. 10 (b) is an operation explanatory view showing the moving state of the oscillating cam plate. A partially omitted side view showing a maximum opening state of the sheave is an operation explanatory view showing a moving state of the oscillating cam plate.
A Sorting air path B Sorting air path 3 Handling cylinder 5 Layer thickness sensor 6 Non-porous transfer plate 7 Sheave 7 'Sheave 7A Front group 7B Central group 7C Rear group 8 Swing sorting body 22a Swing side plate 22b Swing side plate 35 Gear motor ( Drive source)
46 Potentiometer

Claims (3)

A plurality of sheaves formed by providing a non-porous transfer plate at the front between 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 pivotally supported in parallel between the rear portions of the swinging side plates extending rearward from the end side of the transfer plate, wherein the other side edge of each of the sheaves is pivotally connected to a connection plate for each of a plurality of sheaves, The opening degree of each sheave that oscillates with the pivot rod as a fulcrum is synchronized with the forward and backward oscillating movement of the connecting plate, and is synchronously variable. A driving source that oscillates the connecting plate is provided on one oscillating side plate. A rocking sorter in a threshing machine, which is attached to the inner surface of a rocker. 2. A rocking sorter in a threshing machine according to claim 1, wherein a potentiometer for detecting the current opening of the sheave that has been changed to a required opening position is attached to an inner surface of the one rocking side plate. . A swing arm pivotally supported at one end of one of the swing rods of the plurality of sheaves pivotally connected to the connection plate, and is provided to be able to swing back and forth along one swing side plate. The tip of the pivot arm is brought into contact with the cam portion of the cam plate, and the rotation of the pivot arm following the cam portion of the oscillating cam plate causes the sheaves to be synchronously variable in opening. The rocking sorter in the threshing machine according to claim 1 or 2, wherein the rocking sorter is configured as described above.

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