JP6584374B2 - Combine - Google Patents

Description

  The present invention relates to a combine.

  A reaping device for harvesting and transporting cereals, a threshing device for receiving and threshing cereals sent from the reaping device, and a control device, wherein the reaping device is endless to transport the reaped cereals An endless body that is driven to rotate, a nip that can be moved toward and away from the endless body, and a urging member that urges the nip toward the endless body. A sensor for detecting the operating position of the culvert, and the control device detects the amount of culm supplied to the threshing device based on a detection signal from the sensor, and based on the cereal supply amount It has been proposed to perform vehicle speed control (see Patent Documents 1 to 3 below).

  However, the conventional combine has room for improvement with respect to detecting the change in the amount of the culm conveyed by the reaping device with high sensitivity.

  Specifically, the sandwicher has a predetermined length along the moving direction of the endless body, and the back surface on the upstream side and the downstream side of the endless body in the endless body transport direction (the side opposite to the endless body) ) Is fixed to a pair of support rods along a direction substantially perpendicular to the nip.

  The pair of support rods are supported by a pinch holder fixedly installed on the combiner so as to be movable in the longitudinal direction, and are biased in a direction close to the endless body with respect to the longitudinal direction by a spring forming the biasing member. Has been.

  That is, in the conventional combine, the nip is configured to contact and separate in a posture parallel to the endless body, the sensor detects the parallel movement distance of the nip, and The control device estimates the amount of culm of the reaping device based on the detection result, and therefore it is difficult to detect the change in the culm amount of the reaping device with high sensitivity.

JP 10-155329 A JP-A-8-154458 JP2015-223095 A

  The present invention has been made in view of such a conventional technique, and an object of the present invention is to provide a combine that can accurately recognize the amount of cereal transported in a reaping device.

  In order to achieve the above object, the present invention includes a reaping device that harvests and conveys cereals, a threshing device that receives and threshs cereals sent from the reaping device, and a control device. The reaping device is a combine having a transport mechanism having an endless body that is rotationally driven in an endless manner, and a squeezing mechanism that includes a squeeze that sandwiches the harvested cereals between the endless body. The pinching mechanism includes a pinch support that is fixedly installed, and a culm transporter for the pinch so that the pinch can be inclined with respect to the endless body in a state of facing the endless body. A first and a first supported by the sandwiching support so as to be movable in the axial direction so that the upstream and downstream sides in the direction are swingably supported, and the sandwiching can be brought into contact with and separated from the endless body. 2 support rods and the first and second support rods are urged toward the endless bodies, respectively. The combine is provided with a detection mechanism that is spaced apart from the pinching mechanism, and the detection mechanism includes the first and second support rods. The first and second detection sensors for detecting the movement amounts of the first and second connection members that are operatively connected to each other, and the control device responds to a difference in detection values of the first and second detection sensors. A combine for recognizing the amount of corn haul conveyed by the reaping device based on the inclination of the pinch is provided.

  Preferably, the control device grasps a separation distance of the clip from the endless body based on a detection value of at least one of the first and second detection sensors, and tilts the clip relative to the endless body. And a culling amount of the reaping device based on the separation distance.

  In one embodiment, the detection mechanism includes a detection support that is fixedly installed, and first and second detection arms that are swingably supported by the detection support, respectively. The detection sensors are configured to detect the swing angles of the first and second detection arms, respectively.

  Each of the first and second connecting members is a double structure wire having an inner wire and an outer wire, and one end side is operatively connected to the corresponding support rod and the other end side is operatively connected to the corresponding detection arm. .

  The transport mechanism includes a left stock transport mechanism that transports the stock of the left-hand strip cereal potatoes located on the left side of the combine traveling direction, and a stock source of the right-hand strip cereal cereal cocoon located on the right side of the combine travel direction. A right stocker transport mechanism that transports backward, and the pinching mechanism is arranged to cooperate with an endless body of at least one of the left stock transport mechanism and the right stock transport mechanism.

The transport mechanism may further include a central stock transport mechanism that transports the stock of the harvested cereal rice cake of the central strip located between the left strip and the right strip.
In this case, the pinching mechanism includes a left stock holding mechanism, a central stock holding mechanism, and a right stock holding mechanism that cooperate with the left stock transport mechanism, the central stock transport mechanism, and the right stock transport mechanism, respectively. It is supposed to include the stock holding mechanism.

  Preferably, the detection mechanism includes a left stock element detection mechanism that detects an inclination of each of the left stock element pinching mechanism, the central stock root pinching mechanism, and the right stock root pinching mechanism; It is assumed that a detection mechanism for stock shares and a detection mechanism for right shares is included, and the control device includes detection results of the detection mechanism for left shares, the detection mechanism for central shares, and the detection mechanism for right shares Based on the left stock transport mechanism, the central stock transport mechanism and the right stock transport mechanism can be configured to recognize the amount of transported culm.

  The harvesting device includes a harvesting input case that is supported by the traveling machine body of the combine so as to be rotatable about a harvesting rotation axis along the width direction of the machine body, and a longitudinal transmission case that extends forward from the harvesting input case, A lateral transmission case extending in the body width direction at the front end of the longitudinal transmission case, a pulling vertical transmission case extending upward from one side in the body width direction of the lateral transmission case, and an upper end portion of the pulling vertical transmission case A pulling lateral transmission case extending to the other side of the machine body width direction, and the detection mechanism is directly on the pulling lateral transmission case so as to be located in a space on the back side of the pulling case in the reaping device and above the transport mechanism. Or indirectly.

A combine according to the present invention includes a drive source, a travel device, a transmission that is inserted in a travel system transmission path that transmits rotational power from the drive source to the travel device, and a vehicle speed setting member that sets a vehicle speed. The reaping device may be configured to transmit rotational power synchronized with a vehicle speed from the transmission.
In this case, the control device controls the operation of the drive source and / or the transmission device so that the rotational power output from the transmission device has a rotational speed corresponding to the vehicle speed set by the vehicle speed setting member. While performing normal control, the control of the drive source and / or the transmission is controlled so that when the amount of cereal transported by the reaper exceeds a predetermined threshold, the speed becomes lower than the vehicle speed that is generated by the normal control. It may be configured to execute load avoidance control that performs the following.

  According to the combine according to the present invention, the sandwiching mechanism that cooperates with the transport mechanism cooperates with the endless body of the transport mechanism, and sandwiches the harvested cereal meal. And supporting the end of the endless body so as to be able to incline with respect to the endless body in a state of being opposed to the body. First and second support rods supported so as to be movable in the axial direction so as to be movable toward and away from each other, and first and second biasing the first and second support rods toward the endless body, respectively. The first and second connecting members are operatively connected to the first and second support rods, respectively, in a detection mechanism that includes an urging member and is spaced from the pinching mechanism. The control device detects the difference between the detection values of the first and second detection sensors. Since it is configured to recognize the amount of transported culm of the reaping device based on the inclination of the nip, the change in the transport amount of the chopped culm in the reaping device can be recognized with high sensitivity and accuracy. it can.

As a result, it is possible to effectively prevent clogging of the cereal conveyance mechanism in the reaping device, and as a result, it is possible to effectively prevent damage to the cereal conveyance mechanism due to clogging of the culm, and It is possible to effectively prevent deterioration of work efficiency due to the work of removing clogged clogs.
In particular, when the transport mechanism is a stock transport mechanism, the transport amount of the harvesting device can be recognized on the upstream side of the harvesting device in the culm transport direction, and the load state of the harvesting device can be recognized early. be able to.

FIG. 1 is a side view of a combine according to an embodiment of the present invention. FIG. 2 is a plan view of the combine. FIG. 3 is a schematic diagram of transmission of the combine. FIG. 4 is a side view of the reaping device in the combine. FIG. 5 is a plan view of the reaping device. FIG. 6 is a block diagram of a control device in the combine. FIG. 7 is a schematic plan view of a stock transport mechanism in the combine. FIG. 8 is a plan view of the left stock holding mechanism and the left stock transport mechanism. FIG. 9 is an enlarged plan view of the left stock holding mechanism, showing an initial state in which the left stock holding device is closest to the left stock endless body. FIG. 10 is an enlarged plan view of the left stocker pinching mechanism, and shows a state immediately after the amount of culm carried by the left stocker feed mechanism starts to increase. FIG. 11 is an enlarged plan view of the left stocker pinching mechanism, showing a state in which the amount of cereals carried by the left stocker feed mechanism is increased and stabilized. FIG. 12 is a perspective view of the harvesting device in the combine as viewed from the left rear. FIG. 13 is an enlarged exploded perspective view of a detection mechanism in the combine. FIG. 14 is a plan view of the central stock transport mechanism and the central stock holding mechanism. FIG. 15 is a perspective view taken along line XV in FIG.

Hereinafter, preferred embodiments of a combine according to the present invention will be described with reference to the accompanying drawings.
1 to 3 show a side view, a plan view, and a transmission schematic diagram of the combine 1 according to the present embodiment, respectively.

The combine 1 is self-removing.
That is, as shown in FIGS. 1 to 3, the combine 1 is mounted on the traveling machine body 10, a traveling device 20 such as a pair of left and right traveling crawlers connected to the traveling machine body 10, and the traveling machine body 10. An engine 25, a transmission 30 inserted in a traveling system transmission path from the engine 25 to the traveling device 20, a driving unit 40 mounted on the traveling machine body 10, and a forward connection of the traveling machine body 10 A threshing device 400 for threshing the harvested cereals harvested by the reaping unit 100, and a grain tank 50 for storing the grains generated by the threshing device 400.

  As shown in FIGS. 1 to 3, the operating unit 40 is disposed on the front side of the traveling machine body 10 and on one side in the machine body width direction.

The driver 40 includes a driver seat 49 on which a driver can be seated, and various operation members arranged in the vicinity of the driver seat 49.
The operation members include a turning operation member 41, a main transmission operation member 42, an auxiliary transmission operation member 43, and a work clutch operation member 44 for turning on and off the threshing clutch and the mowing clutch.

  As shown in FIGS. 1 and 2, the engine 25 is supported by the traveling machine body 10 using a space below the operation unit 40.

  As shown in FIG. 3, the transmission 30 is configured to shift the rotational power operatively input from the engine 25 and output it to the traveling device 20.

  Specifically, the transmission 30 is supported by the traveling case 10 and a transmission case 32 that is supported by the transmission case 31 so as to be rotatable about its axis and that receives rotational power from the engine 25. And a speed change mechanism that changes the rotational power input via the transmission input shaft 32.

  The transmission mechanism is operated from a main transmission 35 such as a hydraulic continuously variable transmission (HST) that performs a continuously variable transmission in response to an operation of the main transmission operation member 42 by an operator, and the main transmission 35. In addition, a sub-transmission device (not shown) such as a gear-type transmission device that receives rotational power and performs multi-stage gearing in response to an operation of the sub-transmission operation member 43 by the operator may be included.

4 and 5 show a side view and a plan view of the reaping device 100, respectively.
The reaping device 100 includes a reaping frame 110 that is supported by the traveling machine body 10 so as to be rotatable about a cutting rotation axis 100X along the machine body width direction.

  As shown in FIGS. 4 and 5, the cutting frame 110 includes a cutting input case 111 supported on a cutting stand 15 provided on the traveling machine body 10 so as to be rotatable about a cutting rotation axis 100 </ b> X, and the cutting input. A longitudinal transmission case 112 extending forward from the case 111, a lateral transmission case 113 extending in the body width direction at the front end of the longitudinal transmission case 112, and extending upward from an end of the lateral transmission case 113. A pulling vertical transmission case 115 and a pulling horizontal transmission case 117 extending from the upper end of the pulling vertical transmission case 115 in the body width direction are provided.

  The lifting position of the reaping device 100 can be adjusted by a lifting hydraulic cylinder device 90 (see FIGS. 1 and 4) disposed between the traveling machine body 10 and the longitudinal transmission case 112.

In the present embodiment, the cutting frame 110 is further a plurality of weeding frames 114 extending forward from the lateral transmission case 113, and a plurality of cutting frames 114 arranged in parallel with a predetermined interval in the body width direction. A weed frame 114 and a vertical support frame that extends obliquely forward and upward from the end of the lateral transmission case 113 opposite to the longitudinal longitudinal transmission case 115 so as to be substantially parallel to the longitudinal longitudinal transmission case 115 ( (Not shown).
The pulling lateral transmission case 117 is connected to the pulling vertical transmission case 115 and the upper and lower support frames.

  The reaping device 100 further includes a weed body 125 supported by the reaping frame 110, a culm pulling device 130, a scraping device 135, a cutting blade device 140, and a culm transport mechanism (transport mechanism) 150. .

The combine 1 according to the present embodiment is a six-row cut.
Accordingly, the seven weeding frames 114 are provided, and the weeding body 125 is supported on each of the seven weeding frames 114.

As shown in FIGS. 4 and 5, the culm pulling device 130 causes the uncut chopped culm and is supported by the pulling case 131 and the pulling case 131 so as to be driven endlessly. And a pulling tine 132.
The pulling case 131 is supported by the pulling lateral transmission case 117 in a standing state behind the weed body 125.

  The said scraping device 135 is comprised so that the stock origin side of the uncut grain mash raised by the said grain mashing apparatus 130 may be raked back.

As described above, the combine 1 according to the present embodiment is for cutting six lines.
Therefore, as shown in FIG. 3 and FIG. 5, the scraping device 135 includes a pair of left and right star wheels 136 </ b> L that scrape the stock side of the left-side two cereal grains introduced from the two left-side pulling cases 131. And a pair of left and right left stir belts 137L, and a pair of right and left right star wheels 136R and a pair of right and left right that rake in the stock side of the right side two cereals introduced from the right side two pulling case 131 A pair of left and right central star wheels 136C and a pair of left and right central scratching belts 137C that scrape the stock side of the cereal grains for the two central strips introduced from the two central pulling cases 131; have.

The cutting blade device 140 is for cutting the stock of uncut grain culm in the field, and has a clipper type cutting blade that reciprocates in the body width direction and in the body width direction.
In the present embodiment, the cutting blade device 140 cuts the stock of uncut cereal rice cakes that are erected by the pulling tine 132 and are stocked back by the star wheel 136 and the rake belt 137. As described above, the star wheel 136 and the scraping belt 137 are disposed below.

  The transport mechanism 150 transmits the harvested cereals inherited from the culm pulling device 130 and the rake device 135 to the feed chain mechanism 420 in the threshing device 400.

  Specifically, the transport mechanism 150 includes a stock transport mechanism 160 that transports the stock of the harvested cereal inherited from the culm pulling device 130 and the scraping device 135 to the rear, the culm pulling device 130, The tip transport mechanism 170 that transports the tip side of the harvested cereal rice cake inherited from the scraping device 135 to the rear, the vertical transport mechanism 200 that transports the stock source of the harvested cereal rice cake inherited from the stock source transport mechanism 160 to the rear, and First and second auxiliary transport mechanisms 250 (1) and 250 (2) that transport the stock of the harvested cereal meal from the vertical transport mechanism 200 to the feed chain mechanism 420 are provided.

  In the present embodiment, as shown in FIG. 5 and the like, the stock transport mechanism 160 is configured such that the left strip located on the left side among the plural strips (six strips in the illustrated embodiment) that the combine 1 can harvest. The left stocker transport mechanism 160L that transports the stock of the harvested cereal grains of the right side (in the form shown on the left side) to the right rear side, and the right side strip (on the right side in the form shown in the figure) of the right side The right stock transport mechanism 160R that transports the cereal stocks diagonally to the left and the central stock (center 2 in the illustrated form) of the harvested cereal stocks are transported diagonally to the right. Central stock transport mechanism 160C.

  The left stock transport mechanism 160L is wound around a drive shaft 161L, a drive sprocket provided on the drive shaft 161L, a driven shaft, a driven sprocket provided on the driven shaft, the drive sprocket and the driven sprocket. It has a rotated left stock endless body 165L.

  The right stock transport mechanism 160R is wound around a drive shaft 161R, a drive sprocket provided on the drive shaft 161R, a driven shaft, a driven sprocket provided on the driven shaft, the drive sprocket and the driven sprocket. It has a rotated right stock endless body 165R.

  Similarly, the central stock transport mechanism 160C includes a drive shaft 161C, a drive sprocket provided on the drive shaft 161C, a driven shaft, a driven sprocket provided on the driven shaft, the drive sprocket and the driven follower. And a central stockless endless body 165C wound around the sprocket.

  The vertical transport mechanism 200 is transferred by the left stock transport mechanism 160L, the central stock transport mechanism 160C, and the lower right transport mechanism 160R, and inherits the joint stock of the harvested cereal grains. Transport toward the feed chain mechanism 420.

  The vertical transport mechanism 200 is wound around a drive shaft 201, a drive sprocket provided on the drive shaft 201, a driven shaft 202, a driven sprocket provided on the driven shaft 202, the drive sprocket and the driven sprocket. It has a rotated vertical conveying endless body 205.

In the present embodiment, as shown in FIG. 5 and the like, the tip transport mechanism 170 transports the tip end side of the harvested cereal rice cake to which the stock is transported by the left stock transport mechanism 160L backward. The stock stock is transported by the mechanism 170L, the right stock tip transport mechanism 170R for transporting the stock tip side of the harvested cereal rice cake to which the stock stock is transported by the right stock transport mechanism 160R, and the central stock transport mechanism 160C. It has a central tip transport mechanism 170C that transports the tip side of the harvested cereal rice basket backward, and a rear tip transport mechanism 175 that transports the tip side of the harvested cereal rice cake transported by the vertical transport mechanism 200.
Each of the tip conveying mechanisms has a tine 171 that is rotationally driven endlessly.

  Each of the first and second auxiliary transport mechanisms 250 (1) and 250 (2) includes a drive shaft, a drive sprocket provided on the drive shaft, a driven shaft, and a driven sprocket provided on the driven shaft. And an auxiliary transport endless body wound around the drive sprocket and the driven sprocket.

  The threshing device 400 inherits the stock of the harvested cereal meal from the handling cylinder 410 that is rotationally driven in a handling chamber formed by a machine frame that is erected on the traveling machine body 10 and the grain culm transport mechanism 150, A feed chain mechanism 420 that conveys the grain tip side into the handling chamber, and a swing sorting mechanism that performs a sorting process on the cereals taken out from the harvested grain straw by the handling cylinder 410. 430, a red pepper fan 440 that supplies the sorting air to the swing sorting mechanism 430, a processing drum 450 that performs reprocessing on the cereals taken out by the handling drum 410, and the swing sorting mechanism 430. A sorted product transport mechanism for transporting the sorted product that has been subjected to the sorting process, and a dust exhaust fan 480 for discharging the dust removed from the cereal by the swing sorting mechanism 430 to the outside of the machine. It is provided.

  The handling cylinder 410 includes a handling cylinder shaft 411 that is driven by power transmitted from the engine 25 and a handling cylinder body that is supported by the handling cylinder shaft 411 so as not to be relatively rotatable.

  The swing sorting mechanism 430 is configured to perform specific gravity sorting on the cereals that have been taken out by the handling cylinder 410 and leaked from a receiving net disposed below the handling chamber.

  The swing sorting mechanism 430 has a swing sorting drive shaft 431 driven by power operatively transmitted from the engine 25, and a swing sorting body swung by the swing sorting drive shaft 431. is doing.

  The swing sorting main body may include a feed pan, a chaff sheave connected to the rear of the feed pan, a Strollac connected to the rear of the chaff sheave, and a grain sheave disposed below the chaff sheave. .

  The tang fan 440 is driven by the tang shaft 441 driven by the power operatively transmitted from the engine 25 and the tang shaft 441, and moves forward and downward and backward and upward with respect to the swing selection mechanism 430. It has a Kara fan body that supplies sorting air.

  The processing cylinder 450 is supported by the processing cylinder shaft 451 driven by power operatively transmitted from the engine 25 and the processing cylinder shaft 451 so as not to rotate relative to the processing cylinder shaft 451 in communication with the rear portion of the handling chamber. And a treated cylinder main body.

The selected article transport mechanism includes a first conveyor mechanism 461 disposed in a first basket that aggregates grains (the first thing such as fine grains) selected from cereals by the swing sorting mechanism 430; A cereal conveyor mechanism 462 that conveys the first thing sent by the first conveyor mechanism 461 into the Glen tank 50, and a second that aggregates a mixture of grains and straw (second product) from the cereal. A second conveyor mechanism 465 disposed in the basket, and a second reduction conveyor mechanism 470 for returning the second product sent by the second conveyor mechanism 465 to the sorting start end side of the swing sorting body. ing.
The combine according to the present embodiment further includes a sorting fan 445 for wind-selecting the second item.

  The dust exhaust fan 480 is driven by the dust exhaust shaft 481 driven by the power operatively transmitted from the engine 25, and is driven by the dust exhaust shaft 481, and sucks the dust exhaust at the rear portion of the swing sorting mechanism 430. And a dust exhaust fan body that discharges outside the machine.

Next, the transmission structure in the combine 1 will be described mainly with reference to FIGS. 3 and 5.
The rotational power from the engine 25 is transmitted to the transmission input shaft 32, and is shifted by the speed change mechanism and transmitted to the drive axle of the travel device 20.

  Rotational power is transmitted to the reaping device 100 and the threshing device 400 via a counter gear case 60.

  The counter gear case 60 receives rotational power from the engine 25 via a threshing clutch and outputs rotational power toward the barrel shaft 411, and vehicle speed from the PTO shaft 39 of the transmission 30. A vehicle speed tuning shaft 63 for inputting rotational power according to the speed, a sorting input shaft 65 operatively connected to the threshing drive shaft 61, and a cutting transmission selectively coupled to the vehicle speed tuning shaft 63 or the sorting input shaft 65. A shaft 67, a cutting drive shaft 69 that is operatively connected to the cutting transmission shaft 67 and outputs rotational power toward the cutting input shaft 520 inserted in the cutting input case 111, and is operatively connected to the sorting input shaft 65. And a feed chain drive shaft 70 that outputs rotational power toward the feed chain device 420.

  The cutting input shaft 520 is operatively connected to a vertical transmission shaft 522 that is inserted into and supported by the vertical transmission case 112 via a bevel gear train.

  The longitudinal transmission shaft 522 is operatively connected to the lateral transmission shaft 526 inserted and supported in the lateral transmission case 113 at the front end portion, and also operates to the rear conveyance drive shaft 524 and the right conveyance drive shaft 528 in the middle portion. It is connected.

The rear transport drive shaft 524 operatively drives the first and second auxiliary transport mechanisms 250 (1) and 250 (2).
The right transport drive shaft 528 operatively drives the right stock transport mechanism 160R and right tip transport mechanism 170R, the right star wheel 136R, and the right scratching belt 137R. Further, the right transport drive shaft 528 Operatively drives the vertical transport mechanism 200 via a vertical transport transmission shaft 529.

  The horizontal transmission shaft 526 is operatively connected to a pulling transmission vertical axis 530 inserted and supported by the pulling vertical transmission case 115 on the left end side.

The pulling transmission vertical axis 530 is operatively connected to the left transport drive shaft 534 in the middle.
The left transport drive shaft 534 operatively drives the left stock transport mechanism 160L and the left tip transport mechanism 170L, the left star wheel 30L, and the left scraping belt 31L.

The horizontal transmission shaft 526 is further operatively connected to the central conveyance drive shaft 527 in the middle portion.
The central transport drive shaft 527 operatively drives the central stock transport mechanism 160C and the central tip transport mechanism 170C, the central star wheel 30C, and the central scraping belt 31C.

  Further, the lateral transmission shaft 526 is also operatively connected to the cutting blade device 140 via left and right crankshafts.

  The pulling vertical transmission shaft 530 is operatively connected to the pulling horizontal transmission shaft 532 inserted and supported by the pulling horizontal transmission case 117 through a bevel gear train at the upper end.

  A pulling tine drive shaft 536 is operatively connected to the pulling lateral transmission shaft 532 via a bevel gear train, and the pulling tine drive shaft 536 operates on a sprocket shaft 538 that drives the pulling tine chain 132a via the bevel gear train. It is connected.

The threshing device 400 receives rotational power that is not synchronized with the vehicle speed.
That is, as described above, rotational power is transmitted from the threshing drive shaft 61 to the handling shaft 411, and further, the feed chain mechanism 420, the swing sorting mechanism 430, the tang fan 441, and the sorting material transport. Rotational power is transmitted from the sorting input shaft 65 to the mechanism and the dust exhaust fan 480.

  The rotational power from the engine 25 is further supplied to the bottom conveyor 590 in the Glen tank 50, the vertical conveyor 592 in the vertical auger cylinder, and the discharge conveyor 594 in the horizontal auger cylinder via the Glen tank transmission mechanism. Actuated is transmitted.

Here, the control structure of the combine 1 will be described.
FIG. 6 shows a block diagram of the control device 600 in the combine 1.
As shown in FIG. 6, in the present embodiment, the control device 600 has a plurality of controllers such as a main machine controller 601 and an engine controller 602.

  Sensors and actuators are electrically connected to the plurality of controllers 601 and 602, respectively, and the plurality of controllers 601 and 602 are electrically connected to each other via a CAN communication bus 605.

  Each of the controllers 601 and 602 includes a calculation unit (hereinafter referred to as a CPU) including a control calculation unit that executes calculation processing based on signals input from the various sensors, a ROM that stores a control program, control data, and the like Includes an EEPROM that stores setting values and the like that are not lost even when the power is turned off, and the setting values and the like can be rewritten, and a RAM that temporarily stores data generated during the calculation by the calculation unit. And a storage unit.

  As the output control of the engine 25, the control device 600 performs normal control for operating the engine speed changing actuator so that the engine speed becomes a set speed by the engine speed setting operation member 46 that is manually operated. Is configured to run.

  Specifically, as shown in FIG. 6, the combine 1 includes an engine speed setting operation member 46 such as an accelerator dial, and an operation side engine speed sensor 46 a that detects an operation position of the engine speed setting operation member 46. The fuel injection device 80 acting as the engine speed changing actuator and the operating side engine speed sensor 80a for detecting the engine speed are included.

As shown in FIG. 6, in the present embodiment, the fuel injection device 80 includes a fuel supply pump 82 that sucks fuel from a fuel tank 81 through a filter (not shown), and a pressure feed from the fuel supply pump 82. And a plurality of injectors 86 for injecting the accumulated fuel in the common rail 85 into the cylinders of the engine 250.
In addition, the code | symbol 85a in FIG. 6 is a pressure sensor which detects the internal pressure of the said common rail 85. FIG.

  In the normal control, the control device 600 operates the injector 86 using the set rotational speed detected by the operation side engine rotational speed sensor 46a as a target rotational speed of the engine rotational speed.

  Specifically, the control device 600 stores control data indicating the relationship between the engine speed and the injector control amount (fuel injection amount) in advance in a storage unit such as a ROM. Controls the operation of the injector 86 using the control data.

  That is, the control device 600 inputs the operation position of the engine speed setting operation member 46 such as an accelerator dial from the operation side engine speed sensor 46a, recognizes the target engine speed, and is calculated using the control data. Whether the injector 86 is operated so as to inject a fuel injection amount corresponding to the target engine speed, and whether the actual engine speed detected by the engine speed sensor 80a matches the target engine speed. And the operation of the injector 86 is controlled so that the two coincide.

In the present embodiment, HST is provided as the main transmission 35.
Although not shown, the HST is a hydraulic pump operatively driven by the engine 25, a hydraulic motor fluidly connected via a pair of hydraulic oil lines, and at least one of the hydraulic pump and the hydraulic motor. An output adjuster such as a movable swash plate that changes the volume of the control unit, and a control shaft that tilts the output adjuster, and the rotational speed of the hydraulic motor is rotated by driving the control shaft about an axis. Is supposed to change.

  The combine 1 according to the present embodiment includes a main transmission actuator 610 such as a hydraulic servo mechanism that generates power for rotating the control shaft about an axis.

  In such a configuration, the control device 600 determines that the output rotational speed of the HST 35 detected by the operating side shift sensor (vehicle speed sensor) 610a is a speed corresponding to a manual operation to the main shift operation member 42 such as a main shift lever. Thus, the operation control of the main transmission actuator 610 is performed.

  Reference numeral 42a in FIG. 6 is an operation side shift sensor that detects an operation position (operation direction and / or operation amount) of the main transmission operation member 42.

Reference numeral 36 in FIG. 6 denotes a turning HST that acts as a turning drive mechanism.
The output state of the turning HST 36 is changed by a turning actuator 620 such as a hydraulic servo mechanism.

  The control device 600 detects the operation position of the turning operation member 41 such as a steering column by the operation side turning sensor 41a, and the output rotation speed of the turning HST 36 detected by the operation side turning sensor 620a is the turning operation member 41. The operation of the turning actuator 620 is controlled so as to achieve a speed corresponding to the operation position.

Further, the control device 600 determines whether or not the work clutch operating member 44 is located at the cutting position and the threshing position, respectively, based on signals from the cutting switch 44a and the threshing switch 44b, respectively. To engage / disengage the reaping clutch 515 and the threshing clutch 555.
Further, the control device 600 operates the grain discharge actuator 650 based on a signal from the sensor 48 a that detects the operation state of the grain discharge operation member 48, and engages / disengages the grain discharge clutch 585.

The combine 1 according to the present embodiment has the following configuration so as to be able to detect the cereal conveyance amount in the reaping device 100.
Hereinafter, this configuration will be described in detail.

A schematic plan view of the stock transport mechanism 160 is shown in FIG.
As shown in FIG. 7, the combine 1 includes a left stock holder 705L that includes a left stock holder 705L that holds a harvested cereal rice cake between the left stock former endless body 165L in the left stock transport mechanism 160L. A central stock holding mechanism 700C including a central stock holding pin 705C that holds a harvested grain rice cake between the straw stock mechanism 700L and a central stock endless body 165C in the central stock transporting mechanism 160C; A right stocker pinching mechanism 700R including a right stocker pinch 705R that holds a harvested cereal rice bran between the stocker endless body 165R in the stocker transport mechanism 160R is provided.

  In the present embodiment, the cutting stock transport amount is detected using the left stocker pinching mechanism 700L.

In FIG. 8, the top view of the said left stock former clamping mechanism 700L and the said left stock former conveyance mechanism 160L is shown.
As shown in FIG. 8, the left stocker pinch mechanism 700L includes a pinch support 710L that is fixedly installed, a left stocker pinch 705L, and a left stocker pinch 705L that supports the left stocker pinch 705L. The first and second support rods 715 (1) L, 715 (2) L (see FIG. 9 and the like below) and the first and second support rods 715 (1) L, 715 (2) L are First and second urging members 720 (1) L and 720 (2) L (see FIG. 9 below) that urge toward the original endless body 165L are provided.

  FIG. 9 shows an enlarged plan view of the left stocker clamping mechanism 700L in a state where the clamping support 710L is indicated by a two-dot chain line for easy understanding.

  As shown in FIG. 9, the first and second support rods 715 (1) L, 715 (2) L each support the left stock nip 705L at the tip portion, respectively, in the grain transport direction. It is arranged on the upstream side and the downstream side of D so that the axial direction intersects the grain conveying direction D, and is supported by the pinching support 710L so as to be movable in the axial direction.

  As shown in FIG. 9, each of the first and second support rods 715 (1) L, 715 (2) L is perpendicular to the plane in which the left stock endless body 165L is located (ie, the left Oscillating shafts 716 (1) L, 716 (2) along the conveying direction D of the stock endless body 165L and the direction orthogonal to both the axial directions of the support rods 715 (1) L, 715 (2) L) The left stock holder 705L is supported so that it can swing around L.

  Further, each of the first and second support rods 715 (1) L and 715 (2) L extends in a direction parallel to the swing shafts 716 (1) L and 716 (2) L on the base end side. An engaging pin 717 is provided.

  Each of the first and second urging members 720 (1) L and 720 (2) L has a base end side (side away from the left stock endless body 165L) to the pinching support body 710L. A movable receiver that engages with the fixed receiving plate 721 that is fixed, and that is fixed to the corresponding support rods 715 (1) L and 715 (2) L on the front end side (the side close to the left stock endless body 165L). It engages with the plate 722 and biases the corresponding support rods 715 (1) L, 715 (2) L toward the left stockless endless body 165L via the movable receiving plate 722.

  As shown in FIG. 9, the lower left base clamping mechanism 700L further includes pivot shafts 740 (1) L, 740 (2) parallel to the swing shafts 716 (1) L, 716 (2) L. ) First and second connecting arms 730 (1) L and 730 (2) L supported by the sandwiching support 710L so as to be rotatable around L are provided.

  Each of the first and second connecting arms 730 (1) L, 730 (2) L can swing about the corresponding pivot shafts 740 (1) L, 740 (2) L. The base 731 supported by the base 731 and the base 731 extend in the radial direction with reference to the corresponding pivot shafts 740 (1) L, 740 (2) L, and the corresponding support rods 715 (1) L, 715 (2 ) The rod side connecting piece 733 in which the slit 734 into which the L engagement pin 717 is inserted is formed, and the pivot shaft 740 (from the base portion 731 to the rod side connecting piece 733 corresponding to the circumferential direction in different positions. 1) L, 740 (2) sensor side connecting piece 735 extending in the radial direction with reference to L.

  The slits 734 have a predetermined length in the radial direction with reference to the corresponding pivot shafts 740 (1) L, 740 (2) L, whereby the corresponding support rods 715 (1) L, 715 (2) The pivot shaft 740 (1) to which the first and second connecting arms 730 (1) L, 730 (2) L correspond via the engagement pin 717 by an angle corresponding to the axial movement distance of L. ) L, 740 (2) It can swing around L.

  The sensor-side connection pieces 735 of the first and second connection arms 730 (1) L and 730 (2) L have one ends of the first and second connection members 750 (1) L and 750 (2) L, respectively. The parts are connected.

  With this configuration, the left stock culvert 705L is tiltable about the swing shafts 716 (1) L, 716 (2) L with respect to the left stock endless body 165L. The endless body 205 is brought into contact with and separated from the endless body 205 according to the amount of the culm conveyed by the original transport mechanism 160L200.

That is, when the amount of cereals to be transported is small, the left stock nip 705L is moved by the urging forces of the first and second urging members 720 (1) L and 720 (2) L. Proximity to the original endless body 165L.
Note that FIG. 9 shows a state in which the left stock keeper 705L is closest to the left stock endless body 165L (that is, an initial state in which the amount of corn straw transported is zero or small).

On the other hand, when the amount of the culm conveyed by the left stocker transport mechanism 160L increases, the left stocker 扼 杆 L 705L is pushed away from the left stocker endless body 165L by the transported culm. The
At this time, the first and second support rods 715 (1) L and 715 (2) L are connected to the corresponding first and second urging members 720 (1) L and 720 (via the movable receiving plate 722). 2) While compressing L, it is pushed in a direction away from the left stock endless body 165L.

  Here, as described above, the first and second support rods 715 (1) L and 715 (2) L correspond to the left stock nip 705L on the upstream side and the downstream side in the transport direction D. The swing shafts 716 (1) L and 716 (2) L are supported so as to be swingable.

Accordingly, when the amount of cereals transported by the left stocker transport mechanism 160L increases, first, the left stocker pin 705L is arranged such that the upstream side of the cereal transporting direction D is far away from the left stocker endless body 165L. , Tilted with respect to the left stock endless body 165L.
FIG. 10 shows an enlarged view of the lower left original pinch mechanism 700L immediately after the increase of the grain haul conveyance amount.

  As shown in FIG. 10, immediately after the increase in the amount of grain mash transported, the upstream side of the left stalk base 705L in the stalk transport direction D is inclined so as to be largely separated from the left stalk element endless body 165L. The amount of movement of the first support rod 715 (1) L located on the upstream side in the conveyance direction D is larger than the amount of movement of the second support rod 715 (2) L located on the downstream side in the grain conveying direction D. .

  As described above, the first and second connection arms 730 (1) L, 730 () are formed by an angle corresponding to the axial movement distance of the first and second support rods 715 (1) L, 715 (2) L. 2) Since L swings around the corresponding pivot shafts 740 (1) L, 740 (2) L, as a result, the first and second connecting members 750 (1) L, 750 (2) L are The first and second support rods 715 (1) L and 715 (2) L move in the longitudinal direction by a length corresponding to the axial movement distance, respectively.

After the state shown in FIG. 10, the downstream side of the left stalk base 扼 杆 L 705L is also separated from the left stalk endless body 165L by the cereal with the increased transport amount, and the left stalk base 165L The cocoon 705L is separated from the left stock source endless body 165L by a distance corresponding to the amount of cereal conveyance in a posture substantially parallel to the left stock source endless body 165L.
This state is shown in FIG.

The engagement pins 717 of the first and second support rods 715 (1) L and 715 (2) L are in the state shown in FIG. 9 at one end side of the corresponding slit 734 (corresponding pivot shaft 740). In the state shown in FIG. 11, the other end side of the corresponding slit 734 (corresponding pivot shaft 740 (1) L, 740 (2 ) Located on the side away from L).
Accordingly, the length of the slit 734 is determined according to an assumed movement amount that the first and second support rods 715 (1) L and 715 (2) L will move by the transporting culm.

  When the amount of the transported culm decreases, the first and second support rods 715 (1) L and 715 (2) are urged by the urging forces of the first and second urging members 720 (1) L and 720 (2) L. L is pushed in the direction of approaching the left stock former endless body 165L, and the left stock source clip 705L comes close to the lower left base endless body 165L and returns to the state shown in FIG.

  In addition, at the beginning of the decrease in the amount of transported culm, the left stock culvert 705L is first inclined so that the upstream side in the culm transport direction D is close to the left stock maker endless body 165L (ie, The first support rod 715L (1) is closer to the left stock endless body 165L than the second support rod 715 (2) L). The state shifts to the state shown in FIG.

The combine 1 according to the present embodiment further includes a detection mechanism 800L that detects the amount of movement of the first and second connecting members 750 (1) L, 750 (2) L.
The detection mechanism 800L is spaced from the left stock holding mechanism 700L.

FIG. 12 is a perspective view of the reaping device 100 viewed from the left rear.
As shown in FIG. 12, in the present embodiment, the detection mechanism 800L is disposed in the pulling lateral transmission case 117 so as to be located in a space on the back side of the pulling case 131 and above the transport mechanism 150. Supported directly or indirectly.

In the illustrated embodiment, the cutting frame 110 is provided with a conveyance support frame 118 that extends downward from the pulling lateral transmission case 117 behind the pulling case 131 and supports the central stock transport mechanism 160C. The detection mechanism 800L is supported by the transport support frame 118.
Alternatively, the detection mechanism 800L can be supported by the cabin 40.

  The detection mechanism 800L includes first and second detection sensors that detect movement amounts of the first and second connecting members 750 (1) L and 750 (2) L, respectively.

  In the present embodiment, the detection mechanism 800L includes a pair of first and second detection units 810 (1) and 810 (2) having the same configuration, and the first detection unit 810 (1) The movement amount of the first connection member 750 (1) L is detected, and the second detection unit 810 (2) detects the movement amount of the second connection member 750 (2) L.

FIG. 13 shows an enlarged exploded perspective view of the first detection unit 810 (1).
As shown in FIG. 13, the first detection unit 810 (1) includes a detection support body 815 that is fixedly installed, and a detection arm 820 that is supported by the detection support body 815 so as to be swingable about a pivot shaft 825. And a detection sensor 830 for detecting a swing angle of the detection arm 820 around the pivot shaft 825.
The detection sensor 830 in the first detection unit 810 (1) acts as the first detection sensor.

  As shown in FIG. 13, the detection arm 820 includes a base portion 821 supported by the detection support body 815 so as to be swingable about a pivot shaft 825, and a radial direction based on the pivot shaft 825 from the base portion 821. The connecting member 750 (1) L corresponding to the connecting piece 823 is connected to the connecting piece 823.

Preferably, as shown in FIG. 13, the first detection unit 810 (1) is provided with a return spring 835 that biases the detection arm 820 toward the initial position.
Here, the initial position of the detection arm 820 is defined by the first connecting member 750 (1) L corresponding when the left stock keeper 705L is closest to the left stock endless body 165L. Thus, the detection arm 820 is in a position taken around the pivot shaft 825.

  In the present embodiment, as shown in FIG. 13, the detection arm 830 is a spring extending in the radial direction with respect to the pivot shaft 825 at a position different from the connecting portion 823 from the base portion 821 in the circumferential direction. The return spring 835 has one end fixedly supported by the detection support body 815 and the other end connected to the spring piece 824.

The detection sensor 830 detects a swing angle of the detection arm 820 around the pivot shaft 825.
In the present embodiment, the detection arm 820 is provided with a detector 820a positioned on the pivot shaft 825, and the detection sensor 830 is configured to detect the rotation angle of the detector 820a. Has been.
As the detection sensor 830, various sensors such as a potentiometer can be used.

  Instead, a sensor that can detect the longitudinal movement amount of the corresponding connecting member 750 (1) L, such as a magnetic linear scale, can be used as the detection sensor 830.

  Further, in the present embodiment, the detection mechanism 800L is configured to include a pair of detection units 810 (1) and 810 (2) having the same configuration, but of course the first and second detection sensors. Can be configured to be supported by a single detection support.

  The control device 600 grasps the inclination of the left stock holder 705L based on the difference between the detection values of the first and second detection sensors, and based on this inclination, the transport mechanism 150 (in this case, the left It is configured to recognize the amount of cereals of the stock transport mechanism 160L).

  As described above, when the amount of cereals to be transported changes in the increasing direction, first, the upstream side of the left stock source endless body 165L in the transport direction D of the left stock source endless body 165L extends from the left stock source endless body 165L. The left stock element nip 705L is inclined with respect to the left stock endless body 165L so as to be separated from each other.

  The control device 600 can recognize the degree of inclination of the left stock holder 705L based on the difference between the detection values of the first and second detection sensors 830.

  According to such a configuration, the culvert is configured to be in contact with and separated from the endless body in a parallel posture, and by detecting the parallel movement distance of the culvert with respect to the endless body, Compared with the conventional configuration for recognizing a change, it is possible to detect a change in the amount of the harvested cereal meal with high sensitivity and accuracy.

  That is, in the present embodiment, the first and second support rods 715 (1) L, 715 that are rotatably connected to the upstream side and the downstream side in the transport direction D of the left stock holder 705L, respectively. (2) The amount of movement in the axial direction of L is independently measured, and thereby it is possible to accurately detect disturbance (non-uniformity) in the distribution of the culm amount in the conveyance path, which is a precursor to occurrence of cereal clogging. it can.

Further, in the present embodiment, in addition to the inclination of the left stock holder 705L, the separation distance of the left stock holder 705L from the left stock endless body 165L can also be detected.
In other words, the control device 600 can grasp the separation distance of the left stock nip 705L from the left stock endless body 165L based on the detection value of at least one of the first and second detection sensors 830. The amount of cereal of the transport mechanism 150 (in this case, the left stock transport mechanism 160L) is recognized based on the inclination and the separation distance of the left stock clamp 705L with respect to the left stock endless body 165L. Can be configured.
According to such a configuration, it is possible to more accurately recognize the state of the amount of culm of the transport mechanism 150 (the left stock transport mechanism 160L).

  Furthermore, according to the configuration of the present embodiment, the amount of cereals transported by the stock transport mechanism 160 located upstream in the transport direction of the transport mechanism 150 can be detected. Compared to the configuration for detecting the amount of straw transported, it is possible to recognize the change in the amount of transported straw of the reaping device 100 at an early stage.

  Preferably, the control device 600 can decelerate the traveling speed of the combine 1 when determining that the amount of culm of the transport mechanism 150 exceeds a predetermined threshold.

  That is, as described above, the control device 600 causes the rotational power output from the transmission to become a rotational speed corresponding to the vehicle speed set by the engine speed setting operation member 46 and the main transmission operation member 42. The engine 25 and / or the main transmission 35 is configured to perform operation control (hereinafter referred to as normal control).

On the other hand, when the control device 600 determines that the amount of cereal detected by the first and second detection sensors 830 exceeds a predetermined threshold, the control device 600 is slower than the vehicle speed displayed by the normal control. It may be configured to execute load avoidance control for controlling the operation of the engine 25 and / or the main transmission 35 so that
Note that controlling the vehicle speed to be lower than the vehicle speed that appears by the normal control includes a mode in which the engine 25 is forcibly stopped.

  In the present embodiment, as shown in FIGS. 8 to 11 and 13, the first and second connecting members 750 (1) L and 750 (2) L include an inner wire 751 and an outer wire 755. Double structure wires are used.

  Specifically, in the first connecting member 750 (1) L, one end of the inner wire 751 is operatively connected to the first support rod 715 (1) L via the connecting arm 730 (1) L. And the other end is operatively connected to one end of the first detection arm 820. The outer wire 755 has one end fixed to the sandwiching support 710L and the other end connected to the detection support 815. It is fixed.

  Similarly, in the second connecting member 750 (2) L, one end of the inner wire 751 is operatively connected to the second support rod 715 (2) L via the connecting arm 730 (2) L and The other end is operatively connected to one end of the second detection arm 820. The outer wire 755 has one end fixed to the sandwiching support 710L and the other end fixed to the detection support 815. ing.

  Thus, by using a double structure wire as the first and second connecting members 750 (1) L, 750 (2) L, the first and second support rods 715 (1) L, 715 (2 ) The amount of movement of L can be accurately detected by the spaced apart detection mechanism 800L.

  In the present embodiment, a configuration has been described in which the left stalk base conveying mechanism 160L is used to detect the grain stock transporting state of the left stock source transport mechanism 160L, but instead of this configuration, or In addition, it may be configured to detect the grain stock transport state of the central stock transport mechanism 160C and / or the right stock transport mechanism 160R.

FIG. 14 is a plan view of the vicinity of the central stock holding mechanism 700C configured to be able to detect the amount of harvested and transported culm.
FIG. 15 is a perspective view taken along line XV in FIG.
In FIG. 14 and FIG. 15, the same or corresponding members as those in the left stock holding mechanism 700L are denoted by the same reference numerals with the last symbol changed to “C”.

  As shown in FIGS. 14 and 15, the central stockholder clamping mechanism 700 </ b> C supports the fixed stockholder 710 </ b> C and the central stockholder sandwich 705 </ b> C and the central stockholder sandwiched device 700 </ b> C. First and second support rods 715 (1) C and 715 (2) supported by the sandwiching support 710C so as to be movable in the axial direction so that 705C can contact and separate from the center stock endless body 165C. C and the first and second urging members 720 (1) C for urging the first and second support rods 715 (1) C and 715 (2) C toward the central stockless endless body 165C, respectively. 720 (2) C.

  The first and second support rods 715 (1) C, 715 (2) C are respectively arranged on the upstream side and the downstream side in the transport direction D of the central stockless endless body 165C, and the central stockholder sandwich In a state where 705C faces the central stockless endless body 165C, the swinging shaft 716C (1) orthogonal to both the cereal conveying direction D and the axial direction of the support rods 715 (1) C, 715 (2) C. , 716 (2) C supports the central stock holder 705C so that it can swing.

The axial movement of the first and second support rods 715 (1) C and 715 (2) C is performed via the first and second connecting members 750 (1) C and 750 (2) C. It is detected by a detection mechanism (not shown) for the original pinching mechanism.
The detection mechanism for the central stockholder clamping mechanism has substantially the same configuration as the detection mechanism 800L for the left stockholder clamping mechanism in the present embodiment.

  Also in the configuration shown in FIGS. 14 and 15, double-structured wires having an inner wire and an outer wire are used as the first and second connecting members 750 (1) C and 750 (2) C.

  In the configuration shown in FIGS. 14 and 15, the inner wire 751 of the first connecting member 750 (1) C has one end connected to the sandwiching support 710C and the other end corresponding to the detection mechanism. The outer wire 755 is operatively connected to one end side of the first detection arm, and the outer wire 755 has one end portion that moves together with the first support rod 715 (1) C via the plate 716 (1). C is operatively connected and the other end is connected to a detection support in the detection mechanism.

  The inner wire 751 of the second connecting member 750 (2) C has one end connected to the sandwiching support 710C and the other end operatively connected to one end of the second detection arm in the detection mechanism. One end of the wire 755 is operatively connected to the second support rod 715 (2) C via a plate 716 (2) that moves together with the second support rod 715 (2) C, and the other end is connected to the detection mechanism. To the detection support.

  By making the right stock holding mechanism 160R substantially the same configuration as the central stock holding mechanism 160C or the left stock holding mechanism 160L, the grain stock transporting state of the right stock carrying mechanism 160R can be changed. It can be detectable.

  In addition to the left stock transport mechanism 160L, if it is configured to detect the transport status of the central stock transport mechanism 160C and the right stock transport mechanism 160R, all the grains harvested by the reaping device 100 It is possible to recognize the transport state and transport amount at an early stage on the upstream side of the transport mechanism 150 in the transport direction.

1 Combine 20 Traveling Device 25 Drive Source 30 Transmission (Transmission)
42 Main speed change operation member (vehicle speed setting member)
46 Engine speed setting operation member (vehicle speed setting member)
100 Mowing device 100X Mowing rotation axis 111 Mowing input case 112 Longitudinal transmission case 113 Lateral transmission case 115 Pulling vertical transmission case 117 Pulling lateral transmission case 131 Pulling case 150 Transport mechanism 160 Stock transport mechanism 160L Left stock transport mechanism 160C Central stock Former transport mechanism 160R Right stock former transport mechanism 165L Left stock former endless body 165C Central stock former endless body 165R Right stock former endless body 400 Threshing device 600 Control device 700L Left stock former pinch mechanism 700C Central stock former pinch mechanism 700R Right stock Former pinch mechanism 705L Left stock source pin 705C Central stock pinch 705R Right stock pinch 710L Pinch support 715 (1) First support rod 715 (2) Second support rod 720 (1) First urging member 720 (2) Second urging member 800 Detection mechanism 815 Detection support 820 Detection arm 830 Detection Capacitors 850 (1) first coupling member 850 (2) second connecting member 851 inner wire 855 Outer wire

Claims (7)

A reaping device that harvests and conveys cereals, a threshing device that receives and threshs cereals sent from the reaping device, and a control device, and the reaping device is endlessly driven to rotate endlessly A combine having a transport mechanism having a body and a pinching mechanism including a pinch sandwiching a harvested cereal potato between the endless body,
The pinching mechanism includes a pinch support that is fixedly installed, and an upstream side of the pinch conveying direction of the pinch so that the pinch can be inclined with respect to the endless body in a state of facing the endless body. A first support and a second support which are supported by the sandwiching support so as to be movable in the axial direction so that the sandwiching can be moved toward and away from the endless body. A rod, and first and second biasing members that bias the first and second support rods toward the endless body, respectively.
The combine is provided with a detection mechanism that is spaced apart from the pinching mechanism,
The detection mechanism includes first and second detection sensors that detect movement amounts of first and second connecting members operatively connected to the first and second support rods, respectively.
The said control apparatus recognizes the amount of the transporting culm of the said reaping device based on the inclination of the said pinching according to the difference of the detected value of the said 1st and 2nd detection sensor.   The control device grasps the separation distance from the endless body of the nail based on the detection value of at least one of the first and second detection sensors, and the inclination and separation distance of the nail with respect to the endless body The combine according to claim 1, wherein the amount of culm of the reaping device is recognized based on the chopping device. The detection mechanism includes a detection support that is fixedly installed, and first and second detection arms that are swingably supported by the detection support, respectively, and the first and second detection sensors are respectively And configured to detect a swing angle of the first and second detection arms,
Each of the first and second connecting members is a double-structured wire having an inner wire and an outer wire, one end side is operatively connected to the corresponding support rod, and the other end side is operatively connected to the corresponding detection arm. The combine according to claim 1 or 2, characterized in that The transport mechanism includes a left stock transport mechanism that transports the stock of the left-hand strip cereal potatoes located on the left side of the combine traveling direction, and a stock source of the right-hand strip cereal cereal cocoon located on the right side of the combine travel direction. Including a right stocker transport mechanism that transports backward,
The said pinching mechanism is arrange | positioned so that it may cooperate with the endless body of at least one of the said left stock transport mechanism and the said right stock transport mechanism. Combine. The transport mechanism includes a central stock transport mechanism that transports the stock of the harvested cereal rice cake of the central strip located between the left strip and the right strip,
The pinching mechanism includes a left stock holding mechanism, a central stock holding mechanism, and a right stock holding mechanism that cooperate with the left stock transport mechanism, the central stock transport mechanism, and the right stock transport mechanism, respectively. Including dredging mechanism,
The detection mechanism includes a left stock former detection mechanism, a central stock former detection mechanism for detecting a tilt of each of the left stock stock sandwich mechanism, the central stock stock sandwich mechanism, and the right stock stock sandwich mechanism. Including a detection mechanism and a detection mechanism for the right stock
The control device is configured to detect the left stock transport mechanism, the central stock transport mechanism, and the right stock based on the detection results of the left stock share detection mechanism, the central stock share detection mechanism, and the right stock share detection mechanism. The combine according to claim 4, wherein the amount of the transported culm of the stock transport mechanism is recognized. The harvesting device includes a harvesting input case that is supported by the traveling machine body of the combine so as to be rotatable about a harvesting rotation axis along the width direction of the machine body, and a longitudinal transmission case that extends forward from the harvesting input case, A lateral transmission case extending in the body width direction at the front end of the longitudinal transmission case, a pulling vertical transmission case extending upward from one side in the body width direction of the lateral transmission case, and an upper end portion of the pulling vertical transmission case A pulling lateral transmission case extending to the other side of the body width direction,
The detection mechanism is mounted directly or indirectly on the pulling lateral transmission case so as to be located in a space on the back side of the pulling case in the reaping device and above the transport mechanism. The combine according to any one of 1 to 5. A drive source, a travel device, a transmission device inserted in a travel system transmission path that transmits rotational power from the drive source to the travel device, and a vehicle speed setting member that sets a vehicle speed,
The reaping device is configured to transmit rotational power synchronized with the vehicle speed from the transmission.
The control device performs normal control for controlling the operation of the drive source and / or the transmission so that the rotational power output from the transmission becomes a rotational speed corresponding to the vehicle speed set by the vehicle speed setting member. On the other hand, a load for controlling the operation of the drive source and / or the transmission device so that the speed of the transported culm of the reaping device exceeds the predetermined threshold value so that the speed becomes lower than the vehicle speed that is generated by the normal control. The combine according to any one of claims 1 to 6, wherein avoidance control is executed.

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