JP4787576B2 - Combine - Google Patents

Description

  The present invention relates to a combine.

  The barrel is rotated at a constant speed by a constant speed rotational power from a driving source, and the constant speed rotational power from the driving source is shifted by a traveling system transmission device and transmitted to a traveling device and a cutting / conveying device. It has been conventionally known that the vehicle speed is automatically controlled based on the harvested culm amount and the engine load in the combine.

The combine described in Patent Document 1 uses a threshing amount detected by a culm supply sensor provided in a chopped cereal conveyance route and a chopped cereal conveyance speed based on a vehicle speed sensor, The amount of corn straw supplied to the vehicle is calculated, and the vehicle speed is automatically controlled based on the amount of corn straw supplied and the engine load.
Such a combine is configured to automatically control the vehicle speed based on the grain supply amount and the engine load, and is therefore effective in that the vehicle speed can be changed in accordance with the load fluctuation and timing of the threshing unit. is there.

However, in the conventional combine, sufficient consideration is not given to the properties of the harvested cereal.
That is, the ratio of grain and straw in the cereal (hereinafter referred to as cereal ratio) varies from cereal to cereal.
Therefore, in order to improve the threshing efficiency, it is necessary to pay attention not only to the supply amount of cereal but also to the cereal ratio. For example, threshing processing is performed in a state where the threshing accuracy is lowered when the ratio of grains in the cereal grains (relative ratio of grains) is relatively large, or the ratio of cereals in straw (the ratio of straw) When it is relatively large, the threshing process may be performed in a state where the threshing capacity is insufficient, and as a result, the threshing process efficiency may be reduced.
Japanese Patent No. 3563416

The present invention has been made based on such a novel idea, and an object thereof is to provide a combine that can reliably and easily know the properties of the harvested cereal.
Another object of the present invention is to provide a combine with a simple structure that can improve the threshing efficiency.

  In order to solve the above-mentioned problems, the present invention shifts the constant speed rotational power from the drive source by the traveling system transmission device and transmits it to the traveling device and the mowing / conveying device, and also transmits the constant speed rotational power from the drive source. A combine configured to transmit to a barrel, a culm flow rate detecting device for detecting the amount of harvested culm per predetermined time, and detecting the amount of harvested grain per predetermined time A kernel flow rate detection device and a control device, wherein the control device calculates a cereal ratio of harvested cereal based on detection values from the cereal flow rate detection device and the grain flow rate detection device. Provide a combine.

  According to the combine according to the present invention, the control device calculates the cereal ratio of the harvested culm based on the detection values from the culm flow rate detection device and the corn flow rate detection device. And the ratio of straw can be calculated | required, and, thereby, the property of the harvested corn straw can be known reliably and simply.

  In the combine according to the present invention, when the control device determines that the grain flow rate exceeds a predetermined grain flow rate reference value based on the cereal ratio, the control device decelerates the vehicle speed via the traveling transmission. In addition, when it is determined that the straw flow rate exceeds a predetermined straw flow rate reference value based on the cereal ratio, it is possible to perform control for increasing the vehicle speed via the traveling transmission. According to the combine having such a configuration, when the grain flow rate based on the grass ratio exceeds the kernel flow rate reference value, the threshing process is performed in a state in which the threshing accuracy is improved by reducing the vehicle speed of the combine. When the straw flow rate based on the cereal ratio exceeds the straw flow rate reference value, the threshing treatment can be performed in a state where the threshing processing capability is improved by increasing the vehicle speed of the combine. This can improve the threshing efficiency.

  By the way, when equipped with a rocking sorting mechanism for rocking and sorting the cereal to be threshed by the handling cylinder, when the cereal ratio (grain ratio) of the grains in the cereal is relatively large, the threshing accuracy by rocking and sorting. In the case where a threshing process is performed in a state in which the feed rate is lowered, or when a feed chain device is provided that transports cereals sent from the harvesting / conveying device backward in a state where the tip side receives the threshing treatment by the handling barrel When the ratio of straw to cereals in straw is relatively large, threshing may be performed in a state where the threshing capacity of the barrel is insufficient, and in any case, the threshing efficiency tends to decrease. .

  Therefore, in the combine according to the present invention, a swing sorting mechanism that swings and sorts the cereal to be threshed by the handling cylinder, a tang fan that supplies sorting wind to the swing sorting mechanism, and the drive source And a transmission device for a red pepper fan inserted in a power transmission path from the red pepper fan, and the control device has a grain flow rate exceeding a predetermined grain flow reference value based on the grass ratio If it is determined, control can be performed to increase the speed of the transmission for the fan. According to the combine having such a configuration, when the grain flow rate based on the cereal ratio exceeds the grain flow rate reference value, the rotational speed of the tang fan is increased, thereby being supplied by the tang fan. By increasing the air volume per unit time of the sorting wind, the threshing process can be performed in a state where the threshing accuracy by the swing sorting is improved, and the threshing efficiency can be improved accordingly.

  The combine according to the present invention further includes a swing sorting mechanism for swinging and sorting the cereals threshed by the handling cylinder, and the swing sorting mechanism has an opening degree variable by an opening degree adjusting mechanism. When the control device determines that the grain flow rate exceeds a predetermined grain flow reference value based on the cereal ratio, the opening degree of the chaff sheave shifts in the opening direction. As described above, the opening adjustment mechanism may be controlled to operate. According to the combine having such a configuration, when the grain flow rate based on the cereal ratio exceeds the grain flow rate reference value, the opening degree of the chaff sheave is shifted in the opening direction, and thereby the unit time of the degreased grain. By increasing the selection amount per hit, the threshing process can be performed in a state in which the threshing accuracy by the swing selection is improved, and the threshing processing efficiency can be improved accordingly.

  Further, in the combine according to the present invention, the feed chain device that conveys cereals sent from the harvesting / conveying device backward in a state where the tip side receives the threshing treatment by the handling cylinder, and the drive source A feed chain transmission interposed in a power transmission path to the feed chain device, and the control device determines that the straw flow rate exceeds a predetermined straw flow rate reference value based on the cereal ratio. In this case, it is possible to perform control to increase the speed of the feed chain transmission. According to the combine having such a configuration, when the straw flow rate based on the cereal ratio exceeds the straw flow rate reference value, the transport speed of the feed chain device is increased, thereby being transported by the feed chain device. Threshing processing is performed in a state in which the threshing processing capacity by the handling cylinder is improved (in other words, the threshing loss by the handling cylinder is reduced) by reducing the amount of cereals transported per unit time. And the threshing efficiency can be improved accordingly.

Examples of the cereal flow rate detection device include those that include a sensor that can detect the amount of chopped persimmon per predetermined time, and specifically include those that include at least one of the following sensors: Can do. That is, when the feed chain device is provided,
(A) A sensor for detecting a holding position for determining the amount of plunging into the handling cylinder on the tip side of the culm, which is a holding position on the stock culm side of the culm held by the feed chain device,
(B) a sensor for detecting the pressing amount of the pinching member that presses the cereal cake arriving at the feed chain device so as to guide it to the feed chain device;
(C) A sensor for detecting a pressing amount of a straw holding member that presses the cereals conveyed by the feed chain device toward the feed chain device.

  The grain flow rate detection device may include a sensor including a sensor capable of detecting the amount of harvested grain per predetermined time, specifically, the weight of the Glen tank that stores the harvested grain. And a grain flow rate detection device including a sensor for measuring.

As described above, according to the combine according to the present invention, it is possible to provide a combine that can reliably and easily know the properties of the harvested cereal.
Moreover, according to the present invention, it is possible to provide a combine with a simple structure that can improve the threshing efficiency.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. 1 to 4 are a left side view, a plan view, a right side view, and a front view, respectively, of a combine that is an embodiment of the present invention. 5 is a right side view of the grain tank 13 and the discharge auger 15 in the combine 201 shown in FIGS.

  First, the overall configuration of the combine 201 will be described with reference to FIGS. In the combine 201, the machine body frame 2 is placed on the crawler type traveling device 1, and the raising / cutting unit 3 is disposed in front of the machine frame 2 so as to be movable up and down. In the raising / cutting unit 3, The grain straw is weeded by the weed board 4 projecting forward, and is caused by the tine 6 projecting from the raising case 5 erected at the rear of the weed board 4, and the raising case 5 The cutting blade 7 disposed on the rear side is trimmed from the stockholder side.

  A threshing unit 310 constituting a threshing device 300 (see FIG. 7 and FIG. 8), which will be described later, is disposed behind the pulling / cutting unit 3, and between the pulling / cutting unit 3 and the threshing unit 310. A grain harvesting and conveying device 8 is provided. Further, a feed chain device 9 extends rearward of the reaping / conveying device 8 and on the side of the threshing portion 310. The cereals harvested by the pulling / reaping unit 3 are inherited by the feed chain device 9 from the vertical conveying device 8a in the harvesting / conveying device 8, and the stock chain side is conveyed backward by the feed chain device 9. As a result, the tip side of the cereal is transported into the threshing unit 310, and the threshing of the cereal is performed in the threshing unit 310.

  Here, the harvesting / conveying device 8 is configured to be able to adjust the holding position on the stock side of the cereal held by the feed chain device 9. By adjusting the holding position of the reaping / conveying device 8, the amount of protrusion of the threshing portion 310 on the tip side of the culm into the handling cylinder 330 can be determined.

  Further, on the conveying path between the harvesting / conveying device 8 and the feed chain device 9, a vertical pinion 10 for pressing the wheat straw arriving at the feed chain device 9 so as to guide it to the feed chain device 9. And a straw holding member 11 that presses the cereals conveyed by the feed chain device 9 toward the feed chain device 9.

  A waste chain 18 is disposed at the rear end of the feed chain device 9, and a waste treatment unit 19 having a waste cutter device, a diffusion conveyor (not shown) and the like is disposed below the rear portion of the waste chain 18. It is installed. After the threshing portion 310 threshed, the cereal mash (waste) is transported from the feed chain device 9 to the sewage chain 18 and released to the field as it is, or in the slaughter processing portion 19 shards. And then released while being diffused.

  In addition, a sorting unit 350 constituting the threshing device 300 is disposed below the threshing unit 310, and the sorting unit 350 sorts the grains from the grains and sawdust that have flowed down from the threshing unit 310. . Of the grains and swarf, the selected grain is a grain tank 13 disposed on the machine body frame 2 and conveyed to the grain tank 13 supported by the machine body frame 2. Debris etc. are discharged outside the machine. The grain tank 13 is formed with a grain supply port 13a (see FIG. 5), and the cereal conveyor 80 (see FIG. 5) is provided between the grain supply port 13a and the sorting unit 350 described above. ), And the first grain aggregated in the first basket 510 (see FIG. 7) to be described later in the sorting unit 350 is the first transport conveyor 530 (see FIG. 7) to be described later and the cereal Via the conveyor 80, it is supplied and stored in the grain tank 13 from the grain supply port 13a.

  The grain tank 13 is disposed on the side of the threshing section 310, and a cab 14 is disposed in front of the grain tank 13, while a grain discharging device 15 is disposed behind and above the grain tank 13. It is installed. The grain discharge device 15 includes a vertical discharge auger 15 a and a horizontal discharge auger 15 b, and the vertical discharge auger 15 a is erected on the body frame 2 behind the grain tank 13. The Glen tank 13 is configured to be pivotable laterally about the vertical discharge auger 15a, and the horizontal discharge auger 15b is rotated in the vertical direction by a pivot fulcrum provided on the rear portion thereof. It is configured to be possible.

  A screw-type discharge conveyor 16 is disposed in the front-rear direction at the inner lower portion of the grain tank 13, and one end of the discharge conveyor 16 is connected to the grain discharge device 15. Thus, after being transferred from the grain tank 13 to the grain discharger 15 by the grain discharge conveyor 16 in the grain tank 13, it is discharged to the outside through the vertical discharge auger 15a and from the tip of the horizontal discharge auger 15b. It has become so.

  In the grain discharge device 15, the base side of the horizontal discharge auger 15b is pivotally attached to the upper end of the vertical discharge auger 15a so as to be vertically rotatable. The auger elevating cylinder 130, which is an elevating actuator in the combine 201, is configured to be expanded and contracted by switching of a hydraulic control valve, and one end of the auger elevating cylinder 130 is rotatable to a bracket 131 protruding from the side surface of the vertical discharge auger 15a. The other end is pivotally attached to a bracket 132 projecting from the side surface of the lateral discharge auger 15b. Thus, by extending and retracting the auger elevating cylinder 130, the lateral discharge auger 15b is rotated in the vertical direction. The auger elevating cylinder 130, which is an elevating actuator in the combine 201, is a hydraulic cylinder, but may be other electric or hydraulic motors and is not limited.

  A gear 133a is fitted and fixed in the middle of the vertical discharge auger 15a, and a gear 133b fitted on a rotation shaft 134a of an auger turning motor 134 as a turning actuator is meshed with the gear 133a. Thus, by operating the auger turning motor 134, the vertical discharge auger 15a and the horizontal discharge auger 15b are integrally turned. The auger turning motor 134, which is a turning actuator in the combine 201, is an electric motor, but may be a hydraulic motor or other hydraulic cylinder, and is not limited.

  In this combine 201, even if the Glen tank 13 is turned to the side and separated from the rail on the body frame 2, the front portion of the Glen tank 13 (the opposite side to the vertical discharge auger 15a which is a turning fulcrum) ) Is not tilted forward and downward, and when the Glen tank 13 is returned to its original position, it is not necessary to rotate while lifting the front part.

  More specifically, on the upper part of the vertical discharge auger 15a and on the rear part of the grain tank 13, an allowance part 59 (see FIG. 6) described later and a turning-time grain tank fixing mechanism 60 are provided. An operation unit 70 for operating the rotating Glen tank fixing mechanism 60 is provided at a lower portion of the outer side surface. The rotating Glen tank fixing mechanism 60 and the operating unit 70 are connected by a connecting member such as a wire and interlocked. It is configured to do. In this way, when the Glen tank 13 is rotated to the side for maintenance or the like, the allowance of the allowance portion 59 is canceled and fixed to the vertical discharge auger 15a.

  That is, the rotating Glen tank fixing mechanism 60 is disposed on the upper side of the gear 133a, and as shown in FIG. The end on the open side is bent outward in the left-right direction and fixed to the rear surface of the Glen tank 13 as an attachment portion. The size of the notch of the guide plate 61 is formed in accordance with the outer shape of the vertical discharge auger 15a, and a substantially M-shaped receiving body 62 straddles both inner surfaces on the open side of the guide plate 61. Are fixed. The left and right central portions of the receptacle 62 are also curved to match the outer shape of the vertical discharge auger 15a, and the vertical portion is formed in a space formed between the receptacle 62 and the back of the guide plate 61. A discharge auger 15a is disposed, and a fastening band 63 for fixing is disposed between the inner back portion of the guide plate 61 and the vertical discharge auger 15a.

  In the space between the tightening band 63 and the receiving body 62, the Glen tank 13 is configured to be swingable about the combine width direction axis with respect to the longitudinal discharge auger 15a. That is, gaps are formed between the fastening band 63 and the vertical discharge auger 15a and between the receiving body 62 and the vertical discharge auger 15a to form the permissible portion 59. When the allowance unit 59 allows the grain tank 13 to swing around the axis in the combine width direction, the weight sensor 32 (see FIGS. 5 and 10) described later detects the weight of the grain in the grain tank 13. In addition, the Glen tank 13 can swing around the axis line at least between an empty state and a full state. When the Glen tank 13 and the vertical carry-out auger 15a are integrally rotated, the allowance of the allowance portion 59 which becomes a gap is eliminated by pulling and tightening the tightening band 63 toward the receiving body 62. Thereby, the said Glen tank 13 and the said vertical discharge auger 15a can be fixed.

  The fastening band 63 has a predetermined vertical width and is longer than approximately half of the outer periphery of the vertical discharge auger 15a, and is formed of an elastic plate. One end of the fastening band 63 is the guide plate 61. Are pivotally connected to a pivot shaft 65 provided on one of the left and right sides. A pin 66 is projected outwardly from the other end, and one end of a wire 64 serving as a connecting member is fixed to the pin 66. Further, a pin 67 is provided in the vicinity of the pin 66, and one end of a spring 68 is locked to the pin 67. The other end of the spring 68 extends in a direction opposite to the wire 64, and the guide plate 61 is locked at a predetermined position. In this way, the tightening band 63 is biased in the direction away from the vertical discharge auger 15a by the biasing force of the spring 68, that is, in the loosening direction, thereby increasing the clearance of the allowance portion 59 and superimposing the grains. When the measurement is performed, the tightening band 63 does not come into contact with the vertical discharge auger 15a so that the overlap can be accurately measured.

  A wire receiver 69 is disposed in the vicinity of the bin 66 for connecting the wire 64, and the wire receiver 69 is integrally provided on the outer surface of the open end of the guide plate 61. While supporting one end, it is guided so that the pulling direction by the wire 64 is substantially tangential to the outer periphery of the vertical discharge auger 15a. On the other hand, the other end of the wire 64 is extended to the operation portion 70 disposed on the lower side of the front portion of the Glen tank 13.

  As shown in FIG. 5, the operation unit 70 includes a Glen tank fixing lever 71, a lock lever 72 for locking the Glen tank fixing lever 71 in a tightening position, and the like. In the operation unit 70, the wire 64 is pulled forward by rotating the Glen tank fixing lever 71 outward, and one end of the fastening band 63 connected to the other end of the wire 64 is pulled. Then, the outer periphery of the vertical discharge auger 15a is attracted forward and brought into contact with the receiving body 62, and the permissible portion of the allowance portion 59 is eliminated, whereby the Glen tank 13 is fastened and fixed to the vertical discharge auger 15a. Is done. In order to maintain this tightened state, the hook portion 72 b of the lock lever 72 is engaged with the release lever 71. Thereby, when the Glen tank 13 rotates to the side, the vertical discharge auger 15a and the Glen tank 13 are integrated, and the vertical discharge auger 15a can support the Glen tank 13.

  As shown in FIGS. 1 to 4, a discharge case 136 is provided at the tip of the horizontal discharge auger 15b. In the discharge case 136, a bearing portion made up of a ball bearing or the like is formed to pivotally support a lateral feed conveyor (not shown). The lower surface of the discharge case 136 is opened, and a cylindrical sleeve 137 is attached along the edge of the opening. The sleeve 137 is made of a flexible resin or the like, and the lower end of the sleeve 137 is a grain outlet 138. Thereby, the grains dropped from the lower surface of the discharge case 136 can be concentrated and discharged in the vicinity immediately below the grain discharge port 138 without being scattered around.

  The combine 201 has an auger rest 52 for storing the lateral discharge auger 15b in a storage position, as shown in FIGS. The augerest 52 includes a receiving member 52a that receives the lateral discharge auger 15b of the grain discharging device 15 and a support member 52b that supports the receiving member 52a when the grain discharging device 15 is not used, and is substantially Y-shaped. An auger rest sensor 54 for detecting the lateral discharge auger 15b is disposed in the concave portion of the upper mounting portion. The sensor 54 is electrically connected to the control device 100 (see FIG. 10). Thereby, a signal (information) as to whether or not the lateral discharge auger 15 b is placed on the placement portion of the auger rest 52 detected by the sensor 54 can be transmitted to the control device 100. .

Next, the threshing apparatus 300 will be described.
7 and 8 are a schematic sectional view and a schematic rear view of the threshing apparatus 300, respectively.
The threshing device 300 is disposed below the threshing unit 310 that performs a threshing process on the cereals that are conveyed backward by the feed chain device 9, and is threshed by the threshing unit 310. And the sorting unit 350 for sorting the grains from the to-be-depleted grains flowing down.

As shown in FIGS. 7 and 8, the threshing unit 310 includes a handling chamber 320 defined by a threshing machine frame 321 and a handling driven to rotate about a rotation axis along the front-rear direction of the machine body in the handling chamber 320. A barrel 330 and a barrel receiving net 340 disposed below the barrel 330 are provided.
The handling drum 330 has teeth 331 standing on the outer peripheral surface, and the teeth 331 allow the threshing process to be performed on the tips of the cereals conveyed through the feed chain device 9. It has become.
The handling cylinder receiving net 340 is configured to allow only the grains to be threshed by the handling cylinder 330 to flow down to the sorting unit 350 below the predetermined outer diameter.
Further, the barrel receiving net 340 has a dust feeding port 341 in the vicinity of the rear end portion, and is configured such that a large-diameter to-be-depleted grain falls from the dust feeding port 341 to the chaff sheave 420.

  The sorting unit 350 is oscillated by a drive mechanism (not shown) to perform a specific gravity sorting by a swinging sorting mechanism 350A, and sends the sorting wind to the swinging sorting mechanism 350A. And a wind sorting mechanism 350B for discharging outside the machine.

The swing sorting mechanism 350A swings and sorts the cereals flowing down from the threshing unit 310, and below the threshing unit 310 so as to receive the cereals flowing down from the threshing unit 310. A feed pan 410 disposed on the chaff sheave 420 that receives the cereal from the threshing section 310 and the feed pan 410 and sorts the grain from the cereal, and disposed behind the chaff sheave 420. Strollac 430 is provided.
The feed pan 410, the chaff sheave 420, and the stroller 430 are disposed between a pair of swing side plates 351 (see FIG. 8) extending in the longitudinal direction of the machine body.

The feed pan 410 is configured to convey the cereal to be drained flowing down from the threshing unit 310 to the chaff sheave 420.
Specifically, the feed pan 410 is a plate body whose upper surface is formed in a wave shape in order to convey the grains to be removed to the rear.

The chaff sheave 420 is configured so as to be able to sort the grains to be removed from the threshing section 310 and the feed pan 410 by specific gravity.
Specifically, the chaff sheave 420 has a plurality of fins 421 extending in the body width direction between a pair of swing side plates, and having a plurality of fins 421 arranged side by side in the longitudinal direction of the body with a space therebetween. The specific gravity-sorted grains pass through the interval and fall to the first basket 510 arranged below.
The plurality of fins 421 are integrally swingable around their respective upper ends, and an opening degree adjusting mechanism 422 (not shown in FIGS. 7 and 8, not shown in FIGS. 7 and 8, see FIG. 10). ), The opening width of the gap can be adjusted by changing the inclination angle. The opening adjustment mechanism 422 is electrically connected to a control device 100 described later (see FIG. 10). Thereby, under the instruction of the control device 100, the opening width of the interval can be adjusted.

The Strollac 430 transports large unnecessary items such as waste from the cereals sent from the chaff sheave 420 to the rear of the fuselage, and the small cereals containing grains are disposed below. It is comprised so that it can be dropped to the gutter 520.
Specifically, the Strollac 430 is a plurality of plate-like members 431 extending in the machine body longitudinal direction, and has a plurality of plate-like members 431 arranged in parallel in the machine body width direction with a space therebetween. A small detoxified grain such as a grain falls to the second pot 520 through the interval.
Each of the plurality of plate-like members 431 has an upper surface formed in a wavy shape, thereby facilitating the backward conveyance of a large unnecessary object such as waste.

The first basket 510 is formed in a concave shape in a side view by a front inclined plate 515 and a rear first flow grain plate 511 extending between both side plates 322 (see FIG. 8) of the threshing machine frame, The first grain dropped from the chaff sheave 420 can be concentrated in the concave portion.
The first conveyor 530 is disposed in the concave portion of the first hook 510 along the width of the machine body.
The conveyance downstream end of the first conveyor 530 is connected to the cereal conveyor 80, and as described above, the grains concentrated in the concave portion of the first basket 510 are the first conveyor 330 and the first conveyor 530. It is carried into the Glen tank 13 by the cereal conveyor 80.

The second cage 520 is connected to the rear of the first cage 510.
Specifically, the second basket 520 is formed in a concave shape in a side view by an inclined plate 525 on the front side extending between the both side plates 322 (see FIG. 8) of the threshing machine frame and the second cereal plate 521 on the rear side. The second grain dropped from the Strollac 430 can be concentrated in the concave portion.
A second conveyor 540 is disposed in the concave portion of the second basket 520 along the width direction of the machine body.
The transport downstream end of the second conveyor 540 is connected to a second reduction conveyor (not shown), and is integrated into the concave portion of the second basket 520 by the second conveyor 540 and the second reduction conveyor. The second grain is returned on the feed pan 410.

The wind sorting mechanism 350B is configured to send the sorting wind to the swing sorting mechanism 350A, and the sorting wind can promote the grain sorting by the swing sorting mechanism 350A. Yes.
Specifically, the wind sorting mechanism 350B includes a tang fan 610 that sends out sorting wind that passes upward from below to the swing sorting mechanism 350A.

The tang fan 610 is configured to be rotationally driven around a rotation axis along the width of the machine body in front and below the chaff sheave 420.
Specifically, the tang fan 610 is disposed in a space defined by both side plates 322 (see FIG. 8) of the threshing machine frame and a tang fan case 620 having an opening at the rear. The sorting air can be sent rearward and upward.
More specifically, the Chinese fan case 620 includes a Chinese fan case main body 621 surrounding the Chinese fan 610, a front end portion fluidly connected to the Chinese fan case main body 621, and a rear end portion opened obliquely rearward. And a hollow air duct case 622.
In addition, the side plate 322 of the threshing machine frame is provided with a suction port for sucking air into the tang fan 610.

In the present embodiment, the wind sorting mechanism 350B is further provided with a suction fan 650 that sucks the sorted wind from the tang fan 610 and discharges it to the outside Q.
Specifically, the suction fan 650 is configured to be rotationally driven around the rotation axis along the body width direction above the swing sorting mechanism 350A.
More specifically, the suction fan 650 is covered with a suction fan cover 660 having a front opening 661 facing the swing sorting mechanism 350A and a rear opening 662 communicating with the outside Q, and the sorting wind is The air is sucked through the front opening 661 and discharged from the rear opening 662.
Note that both sides of the suction fan 650 are closed by the side wall 322 of the threshing machine frame.

  Next, the configuration of the transmission system and the control system of the combine 201 according to the present embodiment will be described with reference to FIGS.

  FIG. 9 is a transmission diagram showing a schematic configuration of a transmission system of the combine 201, and FIG. 10 is a block diagram showing a schematic configuration of a control system of the combine 201. As shown in FIGS. 9 and 10, the combine 201 further includes a grain flow rate detection device 500, a grain flow rate detection device 600, a traveling system transmission device 700, a red pepper fan transmission device 800, and a feed chain transmission device 900. And a display device 24.

The culm flow rate detecting device 500 includes a sensor that can detect the amount of chopped culm per predetermined time. For example, the handling depth sensor 41, the vertical pinch sensor 42, and the straw holding sensor 43 Of these, at least one sensor can be used. The handling depth sensor 41 is disposed in the vicinity of the harvesting / conveying device 8 and is a holding position on the stock base side of the culm held by the feed chain device 9, and is the stalk tip side. The holding position adjusted by the cutting / conveying device 8 to determine the amount of protrusion into the handling cylinder is detected, and the vertical pinch sensor 42 is disposed in the vicinity of the vertical pinch 10. And detecting the pressing amount of the vertical pinch 10 that presses the cereal straw arriving at the feed chain device 9 so as to guide it to the feed chain device 9, and the warp pressing sensor 43 includes the warp pressing member 11 is used to detect the pressing amount of the brace pressing member 11 that presses the cereal straw that is disposed in the vicinity of the feeding chain device 9 toward the feed chain device 9.
In the present embodiment, the culm flow rate detecting device 500 is composed of three sensors: the handling depth sensor 41, the vertical pinch sensor 42, and the warp holding sensor 43.

  The handling depth sensor 41, the vertical pinch sensor 42, and the warp holding sensor 43 are all electrically connected to the control device 100 (see FIG. 10). Thereby, the handling depth detected by the handling depth sensor 41, the vertical pinch sensor 42 and the brace pressing sensor 43, the pressing amount of the vertical pinching pin 10, and the pressing amount of the straw holding member 11 Signals (information) related to can be transmitted to the control device 100, respectively.

  The grain flow rate detection device 600 includes a sensor that can detect the amount of harvested grain per predetermined time. In the present embodiment, the grain flow rate detection device 600 calculates the weight of the Glen tank 13 that stores the harvested grain. The weight sensor 32 is used for measurement.

  The weight sensor 32 is of a load cell type that detects a load from the Glen tank 13, and is disposed below the front of the Glen tank 13 and on the machine frame 2, and is electrically connected to the control device 100. Are connected (see FIG. 10). As a result, a signal (information) related to the weight detected by the weight sensor 32 can be transmitted to the control device 100. As described above, when the weight tank 32 detects the weight of the Glen tank 13 by the weight sensor 32, the Glen tank 13 is at least empty from the empty state. Since the weight sensor 32 can measure the grain weight in the grain tank 13, the vertical discharge auger 15b is almost involved in the weight measurement. The weight of the grain can be measured in a state without it.

  As shown in FIG. 9, the traveling transmission device 700 shifts constant-speed rotational power from the drive source E and transmits it to the crawler traveling device 1, the cutting / conveying device 8, and the like. In a form, it is comprised with the continuously variable transmission mechanism which is HST. The drive source E is provided with an electronic governor E1 for controlling the fuel injection amount of the fuel injection pump with an injection amount adjusting rack to keep the rotational speed constant.

  The continuously variable transmission mechanism 700 includes a variable displacement hydraulic pump 710 and a hydraulic motor 720, and an input shaft 710 a of the hydraulic pump 710 is connected to an output shaft Ea of the drive source E via a belt and gear transmission mechanism 730. Are coupled to each other, and an output shaft 720a of the hydraulic motor 720 is interlocked with a transmission case 740 having a power take-out portion 760 for a cutting / conveying device that drives the driving sprocket 741 of the crawler traveling device 1 and the vertical conveying device 8a. It is connected. As a result, the driving force transmitted to the continuously variable transmission mechanism 700 can be transmitted from the continuously variable transmission mechanism 700 to the crawler travel device 1 via the transmission case 740, and the power take-out portion 760 can be To the mowing / conveying device 8.

  The hydraulic pump 710 is provided with a DC servo motor 710b that controls the inclination angle and adjusts the hydraulic discharge amount. The pump 710 is electrically connected to the control device 100 (see FIG. 10). Thus, vehicle speed increase / decrease control can be performed by forward / reverse driving of the motor 710b under the instruction of the control device 100.

  On the other hand, a handling cylinder input shaft 330a of the handling cylinder 330 is coupled to an output shaft Ea of the driving source E via a belt and gear transmission mechanism 750. The driving force from the driving source E is transmitted to the hot fan 610 and the feed chain device 9 via the belt and gear transmission mechanism 750.

  More specifically, the tang fan transmission 800 is inserted in a power transmission path from the drive source E to the tang fan 610 and is electrically connected to the control device 100 (FIG. 10). reference). As a result, under the instruction of the control device 100, the driving force from the belt and gear transmission mechanism 750 is input to the drive shaft 610a of the red fan 610 via the red fan speed change device 800. The Chinese fan 610 can be driven to change speed.

  Further, the driving force from the belt and gear transmission mechanism 750 is input to the drive case 950 that pivotally supports the drive sprocket 9a of the feed chain device 9 via the feed chain transmission device 900. The driving force input to the drive case 950 is decelerated in the drive case 950 and supplied to the drive sprocket 9a to drive the feed chain device 9.

  More specifically, the feed chain transmission 900 is of the belt-type continuously variable transmission type in the present embodiment, and is inserted in a power transmission path from the drive source E to the feed chain device 9. The pair of variable pitch pulleys 910 and 920 whose pitch diameter (belt winding diameter) changes based on the axial movement of the slide split pulleys 912 and 922 with respect to the fixed split pulleys 911 and 921, and the one of the variable pitch pulleys 920 An electric motor 940 that slides the slide split pulley 922 in the axial direction is provided, and a transmission belt 930 is wound around the pair of variable pitch pulleys 910 and 920. The electric motor 940 is electrically connected to the control device 100 (see FIG. 10). Accordingly, under the instruction of the control device 100, the feed chain device 9 is steplessly shifted by sliding the slide split pulley 922 of the one variable pitch pulley 920 in the axial direction and changing the pitch diameter. be able to.

  FIG. 11 is a view of the driving operation unit in the cab 14 as seen from above. As shown in FIG. 9, a display device 24 is provided at the central portion of the steering handle 31 of the front column 30 and is electrically connected to the control device 100 (see FIG. 10). Thereby, the output information transmitted from the control device 100 can be displayed on the display device 24.

  As shown in FIG. 10, the control device 100 controls a central processing unit 101 (hereinafter referred to as a CPU) including control arithmetic means for executing arithmetic processing based on signals input from various sensors and the like, and the combine 201 as a whole. For example, a ROM 102 that stores a control program and the like, stores predetermined data relating to an arithmetic expression to be described later, and a RAM 103 that temporarily holds data generated during the calculation of the CPU 101. The CPU 101 is configured to load and execute a control program stored in the ROM 102 into the RAM 103 as necessary to operate the combine 201.

  As described above, the control device 100 includes the handling depth sensor 41, the vertical pinch sensor 42, the straw holding sensor 43, and the grain flow rate detection device 600 that constitute the grain flow rate detection device 500. The weight sensor 32, the tang fan fan transmission 800, the opening adjustment mechanism 422, the feed chain transmission 900, and the display device 24 are electrically connected to the grain sensor. Calculation processing is performed based on input signals from the dredging flow detection device 500 and the grain flow detection device 600, and the calculation result is displayed on the display device 24. Based on the calculation result, the traveling transmission device 700, It controls the transmission 800 for the tang fan, the opening adjusting mechanism 422 and the transmission 900 for the feed chain.

  More specifically, the ROM 102 stores predetermined first to third grain flow rate reference values used in vehicle speed transmission means P6, tang fan speed change means P7, and chaff sheave opening adjustment means P8, which will be described later, and the vehicle speed speed change. Predetermined first and second wall flow reference values used in the means P6 and the feed chain transmission means P9 described later are recorded in advance. Here, the first to third grain flow rate reference values are different from each other, and the first and second straw flow rate reference values are also different from each other. The CPU 101 has a built-in timer for a clock.

  The control program causes the CPU 101 to perform initial setting means P1, grain flow rate calculation means P2, grain flow rate calculation means P3, grain ratio calculation means P4, information display means P5, vehicle speed speed change means P6, Chinese fan fan speed change means P7, chaff sheave. It functions as a means including an opening degree adjusting means P8 and a feed chain transmission means P9.

  In the initial setting means P1, control for the pump 710 in the traveling transmission 700 is initially set so that the vehicle speed of the combine 201 becomes a predetermined reference speed, and the rotational speed of the tang fan 610 is set to a predetermined reference speed. The control for the tang fan fan transmission device 800 is initially set to be a speed, and the control for the opening adjustment mechanism 422 is initially set so that the opening of the chaff sheave 420 becomes a predetermined reference opening, Further, the control for the motor 940 in the feed chain transmission 900 is initialized so that the transport speed of the feed chain device 9 becomes a predetermined reference transport speed.

In the culm flow rate calculating means P2, the amount of culm transmitted from the culm flow rate detecting device 500 configured by the handling depth sensor 41, the vertical pinch sensor 42, and the straw holding sensor 43 ( In the present embodiment, cutting is performed per predetermined time on the basis of information (signal) on the handling depth, the pressing amount of the vertical clip 10 and the pressing amount of the brace pressing member 11) and the clock timer. Calculate information about the amount of cereals.
More specifically, during a predetermined time measured by the clock timer, information related to the amount of cereals transmitted from the cereal flow rate detection device 500 is integrated, and from the integrated information It is converted into a cereal flow rate using a predetermined culm flow rate conversion formula. In this example, the cereal flow rate is converted using a cereal flow rate conversion formula, but may be converted using a corresponding LUT (lookup table).

In the grain flow rate calculation means P3, the information (signal) related to the amount of grain (in this embodiment, the weight of the grain) transmitted from the grain flow rate detection device 600 comprising the weight sensor 32 and the above-mentioned Information on the amount of grain harvested per predetermined time is calculated based on the clock timer.
More specifically, during a predetermined time measured by the clock timer, information related to the amount of the grain transmitted from the grain flow rate detection device 600 is accumulated, and from the accumulated information, It converts into a grain flow rate using the predetermined arithmetic formula for grain flow rate conversion. In addition, although this grain flow rate is converted using the calculation formula for grain flow rate conversion in this example, it may be converted using a corresponding LUT (lookup table).

The cereal ratio calculating means P4 calculates the cereal ratio of the harvested culm based on the cereal flow rate calculated by the means P2 and the cereal flow rate calculated by the means P3.
More specifically, when the grain flow rate calculated by the means P2 is X1, and the grain flow rate calculated by the means P3 is X2, the grain ratio α (grain The ratio of grains) and the ratio of straw to straw in the cereal straw (the ratio of straw) are calculated by the following equations (1) and (2), respectively.
α = X2 / X1 (1)
β = (X1-X2) / X1 (2)

The information display means P5 notifies the operator of the properties of the harvested cereal.
More specifically, the flow rate calculated by the means P2, the flow rate calculated by the means P3, and the cereal ratio of the harvested culm calculated by the means P4 are displayed on the display device 24. indicate.

In the vehicle speed transmission means P6, when it is determined that the grain flow rate exceeds the first grain flow rate reference value based on the cereal ratio of the harvested culm calculated by the means P4, the traveling system transmission device 700 When the vehicle flow rate is decelerated through the vehicle and the straw flow rate exceeds the first straw flow rate reference value based on the cereal ratio of the harvested culm calculated by the means P4, the traveling transmission device The vehicle speed is increased via 700.
More specifically, when the kernel flow rate corresponding to the kernel ratio α of the kernel calculated by the means P4 exceeds the first kernel flow rate reference value recorded in advance in the ROM 102, the vehicle speed is The pump 710 in the traveling transmission 700 is controlled so as to decelerate from a predetermined reference speed, and the straw flow rate corresponding to the straw ratio β calculated by the means P4 is recorded in the ROM 102 in advance. When the first straw flow rate reference value is exceeded, the pump 710 in the traveling system transmission 700 is controlled so that the vehicle speed increases from the predetermined reference speed. On the other hand, when the grain flow rate corresponding to the grain ratio α of the kernel is equal to or less than the first grain flow rate reference value and the straw flow rate corresponding to the grass ratio β of the straw is equal to or less than the first straw flow rate reference value Controls the pump 710 in the traveling transmission 700 so that the vehicle speed becomes the predetermined reference speed.

In the tang fan speed change means P7, when it is determined that the grain flow rate exceeds the second grain flow rate reference value based on the cereal ratio of the harvested cereal calculated in the means P4, the tang fan speed change. The apparatus 800 is accelerated.
More specifically, when the kernel flow rate corresponding to the kernel ratio α of the kernel calculated by the means P4 exceeds the second kernel flow rate reference value recorded in advance in the ROM 102, the Chinese fan The tang fan fan transmission 800 is controlled so that 610 is increased from the predetermined reference rotational speed. On the other hand, when the grain flow rate corresponding to the grain ratio α of the grain is equal to or less than the second grain flow rate reference value, the transmission for the Chinese fan so that the Chinese fan 610 becomes the predetermined reference rotational speed. 800 is controlled.

When the chaff sheave opening adjustment means P8 determines that the grain flow rate exceeds the third grain flow rate reference value based on the cereal ratio of the harvested cereal calculated by the means P4, the chaff sheave opening degree is opened. The opening adjustment mechanism 422 is controlled so that the degree shifts in the opening direction.
More specifically, when the kernel flow rate corresponding to the kernel ratio α of the kernel calculated by the means P4 exceeds the third kernel flow rate reference value recorded in advance in the ROM 102, the chaff sieve 420 Controls the opening degree adjusting mechanism 422 so as to shift in the opening direction from the predetermined reference opening degree. On the other hand, when the grain flow rate corresponding to the grain ratio α of the grain is equal to or less than the third grain flow rate reference value, the opening adjustment mechanism 422 is set so that the chaff sheave 420 becomes the predetermined reference opening. Control the operation.

When the feed chain transmission means P7 determines that the straw flow rate exceeds the second straw flow rate reference value based on the cereal ratio of the harvested culm calculated by the means P4, the feed chain transmission device 900 Speed up.
More specifically, when the straw flow rate corresponding to the straw ratio β calculated by the means P4 exceeds the second straw flow rate reference value recorded in advance in the ROM 102, the feed chain device 9 The motor 940 in the feed chain transmission 900 is controlled so as to increase from the predetermined reference transport speed. On the other hand, when the straw flow rate corresponding to the straw's cereal ratio β is less than or equal to the second straw flow rate reference value, the feed chain device 9 in the feed chain transmission 900 is set to the predetermined reference transport speed. The motor 940 is controlled.

In the control apparatus 100 described above, when the operation of the combine 201 is performed, the control program is executed, and the CPU 101 functions as the units P1 to P9.
Further, in this combine 201, when the horizontal discharge auger 15 b is placed on the placement portion of the auger rest 52 during the harvesting operation, the lateral discharge auger 15 b is placed on the placement portion of the auger rest 52 by the augerest sensor 54. In this state, the handling depth, the vertical pinch sensor 42, and the brace pressing sensor 43 are used to detect the handling depth and the vertical pinch 10 respectively. Information (signal) regarding the amount of pressing and the amount of pressing of the brace pressing member 11 can be transmitted to the control device 100.

Next, the operation control by the control device 100 will be described in detail below with reference to the flowchart of FIG.
First, prior to the control of the pump 710 in the traveling transmission 700, the rotary fan transmission 800, the opening adjustment mechanism 422, and the motor 940 in the feed chain transmission 900 in the travel system transmission 700 in the means P1. Setting is performed (step S1).

  Next, during the predetermined time measured by the clock timer, the means P2 accumulates information on the amount of cereals transmitted from the cereal flow rate detection device 500, and the accumulated information is It is converted into a culm flow rate by an arithmetic expression for cereal flow rate conversion (step S2), and the information relating to the amount of the grain transmitted from the grain flow rate detection device 600 is accumulated in the means P3, and the sum is accumulated. Is converted into a grain flow rate by the above-described computation formula for grain flow rate conversion (step S3).

  In the means P4, the grain in the cereal using the formula (1) and the formula (2) from the grain flow rate X1 calculated by the means P2 and the grain flow rate X2 calculated by the means P3. The grain ratio α (grain ratio) of the grain and the ratio of straw (β ratio) of the straw in the corn straw are calculated (step S4).

  Thus, the cereal flow rate calculated by the means P2, the cereal flow rate calculated by the means P3, and the cereal ratio of the harvested culm calculated by the means P4 are displayed on the display device 24 (step S24). S5).

  Then, in the previous means P6, when the grain flow rate corresponding to the grain ratio α of the grain calculated in the means P4 exceeds the first grain flow rate reference value (step S6), the vehicle speed is set to the predetermined value. The pump 710 in the traveling transmission 700 is controlled to decelerate from the reference speed (step S7), and the process proceeds to step S11. Further, when the grain flow rate is equal to or less than the first grain flow rate reference value, the straw flow rate corresponding to the straw ratio β of the straw calculated by the means P4 exceeds the first straw flow rate reference value. Sometimes (step S6, step S8), the pump 710 in the traveling transmission 700 is controlled so that the vehicle speed increases from the predetermined reference speed (step S9), and the process proceeds to step S11. Furthermore, when the grain flow rate is less than or equal to the first grain flow rate reference value and the straw flow rate is less than or equal to the first wall flow rate reference value (step S6, step S8), the vehicle speed is the predetermined value. The pump 710 in the traveling transmission 700 is controlled so as to become a reference speed (step S10).

  In the means P7, when the grain flow rate corresponding to the grain ratio α of the grain calculated in the means P4 exceeds the second grain flow rate reference value (step S11), the tang fan 610 is The tang fan fan transmission 800 is controlled so as to increase from the reference rotational speed (step S12). Further, when the grain flow rate is equal to or less than the second grain flow rate reference value (step S11), the tang fan fan transmission device 800 is controlled so that the tang fan 610 has the predetermined reference rotational speed ( Step S13).

  In the means P8, when the grain flow rate corresponding to the grain ratio α of the grain calculated in the means P4 exceeds the third grain flow rate reference value (step S14), the chaff sheave 420 is set to the predetermined value. The opening adjustment mechanism 422 is controlled to move in the opening direction from the reference opening (step S15). When the grain flow rate is equal to or less than the third grain flow rate reference value (step S14), the opening adjustment mechanism 422 is controlled to operate so that the chaff sheave 420 becomes the predetermined reference opening degree (step S14). S16).

  In the means P9, when the straw flow rate corresponding to the straw ratio β calculated by the means P4 exceeds the second straw flow rate reference value (step S17), the feed chain device 9 makes the predetermined reference. The motor 940 in the feed chain transmission 900 is controlled so as to increase from the conveying speed (step S18). When the wall flow rate is equal to or less than the second wall flow rate reference value (step S17), the motor 940 in the feed chain transmission 900 is set so that the feed chain device 9 has the predetermined reference transport speed. Control (step S19).

  When the harvesting operation is continued (step S20), the operations from step S2 to step S19 are sequentially repeated. When the harvesting operation is completed (step S20), the operation control is terminated.

  In the present embodiment, the first to third grain flow rate reference values are different from each other, and the first and second straw flow rate reference values are also different from each other, but are not limited thereto. Instead, at least two of the first to third grain flow rate reference values may be set to the same value, and the first and second straw flow rate reference values may be set to the same value. Further, vehicle speed shift control is performed in steps S6 to S10, tang fan shift control is performed in steps S11 to S13, chaff sheave opening adjustment control is performed in steps S14 to S16, and feed chain is performed in steps S17 to S19. A series of controls are sequentially performed such as performing a shift control. One or more of the vehicle speed shift control, the tang fan fan shift control, the chaff sheave opening adjustment control, and the feed chain shift control are performed. It may be performed independently.

  According to the combine 201 described above, the control device 100 calculates the cereal ratio of the harvested cereal based on the detection values from the cereal flow rate detection device 500 and the grain flow rate detection device 600, and the Since the ratios α and β of the grain and straw are obtained and displayed on the display device 24, the operator can be notified. Thereby, the property of the harvested cereal can be known reliably and simply.

  Further, when the grain flow rate corresponding to the grain ratio α of the grain exceeds the first grain flow rate reference value, the combine 201 is decelerated from the predetermined reference speed, so that the threshing accuracy is improved. The threshing treatment can be performed, and when the straw flow rate based on the grass ratio exceeds the first straw flow rate reference value, the combine 201 is increased from the predetermined reference speed, so that the threshing processing capability is improved. In this state, the threshing process can be performed, thereby improving the threshing efficiency.

  Further, when the grain flow rate corresponding to the grain ratio α of the grain exceeds the second grain flow rate reference value, the tang fan 610 is increased from the predetermined reference rotational speed, thereby the tang fan 610. Therefore, the threshing process can be performed in a state in which the threshing accuracy by the rocking selection is improved, and the threshing processing efficiency can be improved accordingly.

  Further, when the grain flow rate corresponding to the grain ratio α of the grain exceeds the third grain flow rate reference value, the chaff sheave 420 is shifted in the opening direction from the predetermined reference opening, thereby the threshing to be threshed. Since the sorting amount per unit time can be increased, the threshing process can be performed in a state where the threshing accuracy by the swing sorting is improved, and the threshing processing efficiency can be improved accordingly.

  Further, when the straw flow rate corresponding to the straw's cereal ratio β exceeds the second straw flow rate reference value, the feed chain device 9 is increased from the predetermined reference transport speed, thereby causing the feed chain device 9 to In the state where the threshing processing capacity by the handling cylinder 330 is improved (in other words, the threshing loss by the handling cylinder is reduced). ) The threshing process can be performed, and the threshing efficiency can be improved accordingly.

FIG. 1 is a left side view of a combine which is an embodiment of the present invention. FIG. 2 is a plan view of the combine which is an embodiment of the present invention. FIG. 3 is a right side view of the combine which is an embodiment of the present invention. FIG. 4 is a front view of a combine which is an embodiment of the present invention. FIG. 5 is a right side view of the Glen tank and the discharge auger. FIG. 6 is a left side view showing a schematic configuration of the Glen tank. FIG. 7 is a schematic cross-sectional view of a threshing apparatus. FIG. 8 is a schematic rear view of the threshing apparatus. FIG. 9 is a transmission diagram showing a schematic configuration of the transmission system of the combine shown in FIGS. FIG. 10 is a block diagram showing a schematic configuration of the combine control system shown in FIGS. FIG. 11 is a plan view of the driving operation unit of the cab. FIG. 12 is a flowchart showing a flow of operation control by the control device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Traveling device 8 ... Cutting and conveyance apparatus 9 ... Feed chain apparatus 100 ... Control apparatus
201 ... Combine 330 ... Handling cylinder 350A ... Swing sorting mechanism 422 ... Opening adjustment mechanism
420 ... chaff sheave 500 ... cereal flow rate detection device 600 ... cereal flow rate detection device
610 ... Kara fan 700 ... Travel system transmission 800 ... Transmission for Kara fan
900 ... Feed chain transmission E ... Drive source

Claims (5)

A combine configured to transmit a constant speed rotational power from the driving source to the traveling device and the cutting / conveying device by shifting the constant speed rotational power from the driving source to the traveling cylinder and to the handling cylinder. Because
A culm flow rate detecting device for detecting the amount of chopped culm per predetermined time; and
A kernel flow rate detection device for detecting the amount of harvested kernel per predetermined time; and
A control device,
The said control apparatus calculates the cereal ratio of the harvest cereal based on the detected value from the said cereal flow rate detection apparatus and the said cereal flow rate detection apparatus, The combine characterized by the above-mentioned.   When the control device determines that the grain flow rate exceeds a predetermined kernel flow rate reference value based on the cereal ratio, the control device decelerates the vehicle speed via the traveling transmission, and sets the cereal ratio. 2. The combine according to claim 1, wherein when it is determined that the straw flow rate exceeds a predetermined straw flow rate reference value, the vehicle speed is increased via the traveling transmission. A swing sorting mechanism for swinging and sorting the cereal to be threshed by the handling cylinder;
A tang fan that supplies sorting air to the swing sorting mechanism;
A tang fan transmission that is inserted in a power transmission path from the drive source to the tang fan,
2. The control device according to claim 1, wherein when the grain flow rate is determined to exceed a predetermined grain flow rate reference value based on the cereal ratio, the control device speeds up the transmission for the tang fan. 2. Combine according to 2. A rocking sorting mechanism for rocking and sorting the cereal to be threshed by the handling cylinder;
The swing selection mechanism has a chaff sheave whose opening is variable by an opening adjustment mechanism,
When the controller determines that the grain flow rate exceeds a predetermined grain flow rate reference value based on the cereal ratio, the controller adjusts the opening adjustment mechanism so that the opening degree of the chaff sheave shifts in the opening direction. The combine according to any one of claims 1 to 3, wherein operation is controlled. A feed chain device that conveys cereals sent from the harvesting / conveying device in a state where the tip side receives the threshing treatment by the handling cylinder, and
A feed chain transmission device inserted in a power transmission path from the drive source to the feed chain device;
5. The control device according to claim 1, wherein the control device increases the speed of the transmission for the feed chain when it is determined that the straw flow rate exceeds a predetermined straw flow rate reference value based on the cereal ratio. Combine in any one.

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