KR19990076111A - Threshold sorting device in combine - Google Patents

Abstract

It aims to improve the accuracy of sorting the first grain and to reduce the discharge of grain out of the gas. When the grain flow sensor 1 installed on the discharge side of the processing chamber 20 detects the grain quantity as "low" during the harvesting operation to thresh the grain stem harvested by the harvesting section 6 by the threshing apparatus 7 A threshing sorting apparatus in combine, which reduces the amount of sorting air of the tuyere 49 and at the same time reduces the amount of leaking from the sorting lathe 2 and performs the decreasing amount of leaking prior to the decreasing amount of sorting wind.

Description

Threshold sorting device in combine

The present invention relates to a threshing screening apparatus in a combine harvesting and threshing of the grain of the farm.

When it is determined that the threshing amount is small, there is a means for simultaneously reducing the amount of air and the amount of leakage of the sorting lathe.

However, in the above means, the amount of sorting air by the tuyere also decreases, so depending on the condition (eg, humidity) of the threshing process, the grain is blown to the outlet side by the sorting wind to generate a loss.

SUMMARY OF THE INVENTION The present invention provides a deflection screening apparatus in a combine that reduces and selects grains and provides the following technical means.

That is, when the grain flow sensor 1 detects the grain quantity as "low" during the harvesting and threshing operation, the amount of leakage from the sorting wind and the sorting shelf 2 is reduced. At the same time, the above-mentioned operation is performed by the sorting shelf side prior to the sorting air volume side, so that the threshing sorting apparatus in the combine is used.

When the work is started by advancing the gas, the grain stems planted in the farm are harvested and threshed. In the harvesting operation, when the grain flow rate sensor 1 detects that the grain quantity is "low," the sorting air flow rate and the amount of leakage of the sorting shelf 2 are reduced, and the above operation is performed. Do it in advance.

1 is a right side view of the combine;

2 is a left side view of the threshing apparatus partially cut;

3 is a right side view of the threshing apparatus partially cut,

4 is a side cross-sectional view of the threshing apparatus;

5 is a plan view of the threshing apparatus partially cut;

6 is a front view of the threshing apparatus partially cut,

7 is a side view of a sorting shelf cut in part;

8 is a view showing the position of the wind control valve after the wind control valve is operated on the side wall on the left side;

9 is a view showing the position of the wind control valve before the wind control valve is operated on the side wall on the right side;

10 is a view showing the position of the wind control valve after the wind control valve is operated on the side wall on the right side;

11 is a block circuit,

12 is a flowchart.

<Explanation of symbols for main parts of drawing>

One … Grain flow sensor, 2. Screening lathe.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described based on drawing.

First, when the structure is demonstrated, the combine 3 installs the harvest conveyance apparatus 6 in the front part of the vehicle body base 5 provided with the crawler type traveling apparatus 4, At the same time as the threshing apparatus 7 of the automatic transmission system is installed at the rear of the harvesting section 6, and a driving unit (not shown) is installed next to it.

The harvesting and transporting device 6 includes a herbaceous body 8, a grain stem generator 9, a barrican blade 10, and harvested grain stems with the threshing apparatus 7. The conveying apparatus 11 which conveys is comprised integrally.

The threshing apparatus 7 is provided with the automatic transmission apparatus 14 which consists of the press plate 12 and the feed chain 13 which were installed along the threshing receiving opening opened in the left wall, The said automatic transmission apparatus 14 ) Is sandwiched between the grains of the grain stem conveyed by the conveying apparatus 11, and the tip of the ear is inserted into the scraping chamber from the grain stem supply port extending from the front wall 15, and then the intermediate wall 16 It is the structure discharged from the grain stem discharge port shown in the figure.

The foraging chamber 17 is formed by installing a support rope 18 formed in an arc shape between the front wall 15 and the intermediate wall 16 from the bottom to the upper side, and is located on the side of the forks 17. In the front wall, a treatment chamber 20 and a dust treatment chamber 21 are provided from the front wall side. In the exhaust gas treatment chamber 21, the inlet port 22 communicates with the end portion of the scraping chamber 17, and the outlet port 23 is close to the rear wall 24 of the threshing apparatus 7. Moreover, the rice scraping mechanism 25 is provided in the said rice scraping chamber 17, the processing mechanism 26 is provided in the processing chamber 20, and the dust collecting mechanism 27 is rotatably provided in the dust processing chamber 21, respectively. 28 is a treatment tooth provided on the outer circumferential surface of the treatment mechanism 26, 29 is a dust treatment tooth provided on the outer circumferential surface of the dust isolation mechanism 27, and 30 is a It is a snapping tooth installed on the outer circumferential surface. And the processing value 31 of the feed end side (front wall side) of the said processing mechanism 26 is formed in flat plate.

The grain flow sensor 1 is provided at the upper portion of the processing chamber 20 opposite to the processing chamber outlet 32 formed by cutting the front wall side of the leaky body 19 of the processing chamber 20, and the processing value 31. Whenever the kernel receives the grain, the signal is sent to a microcomputer (not shown).

The sorting chamber 33 is provided below the rice scraping chamber 17, the processing chamber 20, and the dust-treatment chamber 21. The sorting chamber 33 moves the front end portion to the front wall 15 and the rear end portion is placed on the rear wall 24. A rocking dividing shelf (35) close to the actual discharge port (34) is provided so as to be swingable in the front-rear direction. In addition, the swing sorting shelf 35 is provided with a conveyance rack 36 at the front end, a straw rack 37 at the rear end, and a straw rack 37 at the lower end of the rice padding chamber 17. The sorting shelf 2 is installed in the past, and the first sorting network 38 is installed below the middle of the sorting shelf 2.

The sorting shelf 2 is arranged in a plurality of spaced apart in the front and rear direction at the same time, the plate 39 is installed in the left and right direction inclined so that the top is located behind the bottom, pivoting the upper left and right sides of the plate 39 A rocking frame 40 for supporting is provided. In addition, the lower end portion of the plate 39 is installed to be movable along the cut length hole 41 in the swinging frame 40 so as to change the inclination angle. Therefore, if the lower end of the plate 39 moves upward, the amount of leakage will decrease, and if it moves downward, the amount of leakage will increase. 42 is an interlocking plate which is located outside the swing frame 40 and pivotally supports the lower end of each plate 39.

43 is a plate actuating plate which pivotally supported the upper end to the upper end of the plate 39. The lower end of the plate actuating plate 43 is provided with the other end of the wire 46 connected to the rotational arm 45 that is rotated by the motor 44. 47 is a return spring that tensions the plate operating plate 43 to its original position. 48 is an interlocking arm which installs the both plate operation plates 43 so that interlocking is possible. Then, the motor 44 is installed in the lower part of the front wall, the wire 46 is connected to the pivoting arm 45 from the rear of the wind hole axis 50 of the tuyere down, and then to the front and then upwards. It is a constitution. Moreover, although the wire 46 goes outward of the side wall through the window 51 extended to the transverse wall of the threshing apparatus 7, this window 51 is provided by the window cover 52 to open and close freely.

In addition, rectangular intake holes 57 are formed in the left and right horizontal walls 55 and 56 on which the air vents 49 are located, respectively, and the wind control valves are inserted so as to face the intake holes 57 therebetween. (58) is installed. The wind control valve 58 is fixed to the transverse shafts 59 and 60 which rotate the entire front part with the axial center in the transverse direction to the transverse side walls 55 and 56.

The horizontal shafts 59 and 60 extend in both the left and right ends in the axial center direction, and are reciprocated in the front-rear direction by the forward and reverse motor 61 at the end of the horizontal shaft 59 on the side wall 55 side. The upper interlocking arm 63 connected to the moving rod 62 is fixed, and the lower interlocking arm 64 is fixed to the end of the horizontal axis 60. And when the said both linking arms 63 and 64 are connected through the link mechanism 65, and the rod 62 moves to the back (arrow A direction), the upper and lower linking arms 63 and 64 and the link mechanism ( Rotate toward the two wind control valves 58 through 65 to reduce the opening area of the intake hole 57, and interlock when the rod 62 moves forward (opposite to the arrow A direction) at that position. The arms 63 and 64 and the link mechanism 65 are operated on the opposite side to increase the opening area of the intake hole 57.

Further, on the lateral wall 56 side, the upper interlocking arm 66 and the lower interlocking arm 67 are fixed to the respective shaft ends of the horizontal axes 59 and 60, and the upper interlocking arm 66 and the lower interlocking motion. The arm 67 is connected to the right connection arm 68. Therefore, the two wind control valves 58 rotate in the same direction as the wind control valve 58 on the side wall 55 side in relation to the movement of the rod 62, thereby increasing the size of the opening area of the intake hole 57. I can regulate it.

The forward and reverse motor 61 is located above the second grain conveying apparatus 54 toward the second grain conveying apparatus 54 than the first grain conveying apparatus 53 when viewed from the left side of the threshing apparatus 7. Inner side of the second grain bin (69) which communicates with the conveying end of the second grain conveying device (54) and supplies the second grain to the processing chamber (20) at the conveying start end side of the processing mechanism (26). Detachment is provided freely in the horizontal side). In addition, 70 is a first grain bin which communicates with the conveying end of the first grain conveying apparatus 53 and feeds up the first grain to a grain tank (may be a grain hopper) 71, 72 is an auger that discharges the grain in the grain tank out of the machine. 73 is a dust pin disposed above the straw rack 37, 74 is a straw cutting device.

Referring to the block circuit shown in Fig. 11, reference numeral 75 denotes an operation control unit (hereinafter referred to as a CPU) of a microcomputer having a memory 76 in which a control program or data is embedded, and performs arithmetic, logic, comparative operations, and the like. .

Then, as the information input to the CPU 75 through the input interface 77, the sorting automatic presence information from the sorting automatic switch 78 provided in the driving unit, the wind blowing amount control information from the window setting dial 79, Separation lathe amount setting information from the selection lathe from the leakage amount setting dial 80, and wind control valve position information from the window position sensor 82 for detecting the rotational amount of the motor shaft of the forward and reverse motor 61, the motor 44 Leak amount information from the sheave position sensor 82 for detecting the rotational amount of the motor shaft of the motor shaft, grain detection information from the grain flow sensor 1, and the shift position of the shift lever (e.g., HST lever in the peripheral speed). The vehicle speed information from the vehicle speed sensor 83 for detecting the information, the threshing clutch connecting and cutting information from the threshing switch 84, and the grain stem sensor 85 provided in the harvesting section 6 (may be the threshing device side instead of the harvesting section). Information about the grain stem from The.

The command signal output from the CPU 75 via the output interface 86 includes a drive command signal to the motor 44 and the reverse motor 61. In addition, the sorting automatic switch 78 is a limit switch, a window setting dial 79, a leakage amount setting dial 80, a window position sensor 81, a sheave position sensor 82, and a vehicle speed sensor 83 are potentiometers. The potentiometer, the threshing switch 84, and the grain stem sensor 85 are the components detected by the limit switch.

Next, the operation will be described using a flowchart in combination.

First, by driving a prime mover (a diesel engine in this embodiment) to drive a rotating corner portion, and inserting a sorting automatic switch 78, and operating the window setting dial 79 and the leakage amount setting dial 80 to control the amount of airflow The amount of leakage of the lathe 2 is selected, the harvesting section 6 and the threshing clutch are "stitched", and the shift lever is operated to advance the gas to start the harvesting operation.

Then, the gas is advanced, and the grain stems planted in the farm are harvested and conveyed by the harvesting unit 6, and at the same time, the CPU 75 selects automatic "Yes", the wind blowing set amount, the leak setting amount, and the vehicle speed sensor 83. The set vehicle speed information, and a slight time difference, is input to the grain stem " is present " (which is being harvested) from the grain stem sensor 85.

Then, the grain portion of the grain stem that has been harvested and conveyed by the harvesting section 6 and reaches the conveying end portion is sandwiched between the pressing plate 12 and the feed chain 13 of the automatic transmission device 14, but is conveyed backward. In relation to this, the front part of the ear is put into the scraping chamber 17 from the grain stem supply port installed in the front wall 15, and threshed by the scraping tooth 30 of the rotating scraping mechanism 25 here. Receives out of the flea compartment from the grain stem outlet installed in the intermediate wall (16). Thereafter, the threshing finished rice straw subjected to threshing treatment is conveyed backward by a rice straw conveying device (not shown), finely cut into a predetermined length by the rice straw cutting device 74, and falls to the farm.

By this threshing process, the threshing material containing the large amount of grains laid down in the receiving network 18 of the rice-separation chamber 17 is located below, and the conveyance rack part 36 of the oscillation sorting shelf 35 which oscillates in the front-back direction. (A small amount may fall by the sorting shelf 2). And threshing material is conveyed to the 1st sorting network 38 by the conveyance rack part 36. As shown in FIG.

In addition, the dust or dust that has moved to the grain stem outlet side of the bobbin chamber 17 without falling down from the receiving network 18 enters the dust treatment chamber 21 at the import port 22 and rotates. Although it is sent backward by the dust removal mechanism 27, during this conveyance, since it is processed by the dust removal value 29, a grain of crumbs, a part of a piece of ear chips, etc. are moved from the lower body 19 to the lower sorting shelf. On the other hand, the straw crumbs which did not fall down are dropped from the discharge port 23 to the straw rack 37, and are discharged | emitted out of the gas from the selection chamber discharge port 34 by the sorting wind of the air vent 49.

And, among the deposits laid down on the sorting shelf 2, the sorting shelf deposits with a lot of grains leaking from the grain stack 2 fall to the first sorting network 38, and to the conveying rack portion 36. It joins with the threshing material conveyed by this, and receives the sorting wind which soars upward by the sifting and the tuyere 49. By this sorting wind, a grain is collect | recovered and conveyed to the first grain conveying apparatus 53, and it receives continuously to the 1st grain container 70 from a conveyance end, and supplies it to the grain tank 1. Then, dust or small crumbs separated from the grains by the sorting wind are blown upward and discharged from the sorting chamber outlet 34 to the outside of the gas.

In addition, the soap liquor moved to the rear end without falling down from the sorting shelf 2 is moved to the straw rack 37, and is discharged to the outside of the gas from the sorting chamber outlet 34 by the straw rack 37 and the sorting wind. However, some raw materials (also called second grains), such as grains and ear chips, fall down and are recovered to the second grain conveying device 54, and are continuously received from the conveying end into the second grain barrel 69 to the top of the sorting chamber. Is sent to the processing chamber 20 of. And since the unprocessed material is sent to the front while being subjected to the granulation treatment by the rotating treatment mechanism 26 and the treatment tooth 28, the grain is lowered toward the lateral wall 55 from the lagging body 19. The grains, which have not fallen, rise upward by the treatment value 31 and are reduced to the conveying rack portion 36 far from the transverse wall 55. At this time, when a grain reaches the grain flow sensor 1, the CPU 75 reads this information and counts it to calculate the grain quantity per unit time, that is, the grain flow rate. In addition, foreign matter such as dust floating above the sorting lathe 2 is discharged to the outside of the gas by the dust collecting pin 73, and when the tank 1 is full of grain, the grain discharge such as the discharge auger 72 is discharged. The means are driven and discharged out of the gas.

Next, the sorting lathe control will be described. The CPU 75 judges the threshing clutch " stitch " from the information of the threshing switch 84 (step 10). Do not do it. However, in the case of threshing clutch "knit", the grain stem sensor 85 judges "knit and break" (step 20).

Then, when the CPU 75 judges the "knit" of the grain stem sensor 85, the process of judging by the vehicle speed sensor 83 whether it is high speed or low speed (predetermined which speed is set as "high speed") (step) 30), and when the grain stem sensor 85 judges "breaking", the grain flow rate detected by the grain flow sensor 1 is "high and low" (previously, the flow rate is set to "high"). The process proceeds to step (step 40) for determining.

If the CPU 75 determines that the vehicle speed sensor 85 is "high", the air volume of the air vent 49 is the position set by the window setting dial 79, and the amount of leakage at the sorting shelf 2 is the amount of leakage. This is the position set by the dial 80.

If the CPU 75 determines that the vehicle speed sensor 85 is not "high", the process proceeds to step 40. If the CPU 75 receives the output information from the grain flow sensor 1 in step 40 and judges that the grain flow rate is "high", it is the same as the case where the vehicle speed sensor is "high" in step 30. Do.

If the CPU 75 judges that the grain flow rate is not "high" in step 40, first, the drive command signal is output to the motor 44 via the output interface 86 after 7 seconds. Then, the motor 44 starts and rotates the rotational arm 45 in the direction of arrow B to tension the wire 46 in the same direction. Then, in connection with this, since the lower end part rotates to the arrow C direction centering on the pivot support part a of the upper end part, the back plate operating plate which is connected to the linkage arm 48 ( 43 also rotates in the same direction as the front plate operating plate 43 with the pivot support part a at the upper end as the center.

In addition, since each interlocking plate 42 also moves upward in the forward direction by the rotation of both plate operating plates 43, the lower end of the plate 39, which is arranged at a predetermined interval in the front-rear direction, has a length hole. It works according to (41). Therefore, the lower end portion of the rear plate 39 moves closer to the rear side of the front plate 39 and the leakage passage becomes narrower, thereby reducing the amount of leakage such as grain. When the CPU 75 receives the information output from the sheave position sensor 82, compares with the setting value built in the memory 76, and determines that the difference is within a predetermined width, the motor 44 The output of the drive command signal to the furnace is stopped.

In addition, the CPU 75 judges that the grain flow rate is not "high" in step 40 and, after 8 seconds (i.e., 1 second after the drive command signal to the motor 44), the power failure is performed by the positive and reverse motor 61. Since it outputs a drive command signal, the positive and reverse motor 61 starts and tensions the upper part of the rod 62 and the phase interlocking arm 63 in the direction of arrow A. Then, since the horizontal axis 59 integrally provided with the lower end part of the interlocking arm 63 rotates, each wind control valve 58 provided in each side of the horizontal side walls 55 and 56 is rotated downwards. The opening area of each intake hole 57 is made small. Then, in connection with the rotation of the horizontal axis 59, the link mechanism 65, the upper interlocking arms 63 and 66, the lower interlocking arms 64 and 67, and the right connecting arm 68 are operated to operate the horizontal axis 60. The opening area of each intake hole 57 is made small by rotating each wind control valve 58 fixed to both ends of this horizontal axis 60 upward. Therefore, since the amount of air taken in from the air intake hole 57 by the air vent 49 becomes small, the amount of sorting air supplied to the sorting chamber 33 becomes small.

Then, when the CPU 75 receives the information output from the window position sensor 81, compares with the setting value built in the memory 76, and determines that the difference is within the preset width, the forward and reverse motor 61 Stop output of the drive command signal to

In this way, the leakage passage from the sorting lathe 2 is made small, and the amount of sorting air of the tuyere 49 is reduced after that, so that the fall of straw flakes to the first grain conveying device 53 is reduced to improve the sorting precision. do. In addition, it is possible to reduce the amount of discharged grains outside the apparatus, which increases the amount of collected grains at low speeds. In addition, the operation of the wire 46, which is the driving body for the rotation of the plate 39, can be performed smoothly regardless of the swing of the swing selection lathe 35. And since the motor 44 which operates the wire 46 is detachably attached to the outer surface side of the front wall of the sorting chamber 33, the length of the wire 46 can be shortened and the feed chain 13 ) Rotates in the transverse side of the transverse wall 56, so that maintenance such as inspection of the motor 44 can be facilitated.

Since the grain tank 71 rotates laterally, the side wall 55 side can be opened, thereby simplifying the inspection and maintenance of the forward and reverse motor 61 and at the same time smoothly rotating the rod 62. Can be moved.

Further, after that, when the CPU 75 which has received the detection information by the grain flow sensor 1 determines that the grain flow rate is "high", it operates in the opposite manner to the above operation, and sets the setting positions with the respective dials 79 and 80. Go back to

In the harvesting operation, when the grain flow becomes small, first, the amount of leakage in the sorting lathe 2 is reduced, and the amount of sorting air is reduced in a small amount, so that the loss of the grain is reduced and from the sorting lathe 2 Blow off foreign materials such as straw straw, dust, etc. to improve the screening.

Claims (1)

When the grain flow rate sensor 1 detects that the grain quantity is "low" during harvesting and threshing, the amount of leakage from the sorting air flow and the sorting shelf 2 is reduced and operated. The deflection screening apparatus of the combine characterized in that the said sorting lathe side is performed before a sorting air volume side.