JP6552442B2 - 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 A combination comprising: an endless body rotatably driven; a pinching member capable of coming into and coming off from the endless body; and a biasing member biasing the pinching toward the endless body A sensor for detecting the operating position of the pinch, and the control device detects the amount of gravel supplied to the threshing device based on the detection signal from the sensor, and based on the gravel supply amount It has been proposed to perform vehicle speed control (see Patent Documents 1 to 3 below).

  However, in the conventional combine, there has been room for improvement with respect to sensitively detecting a change in grain scale amount transported by the reaper.

  Specifically, the clamp has a predetermined length along the moving direction of the endless body, and the upstream and downstream back surfaces of the clamp in the endless-material conveying direction (the opposite side 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. It is done.

  That is, in the conventional combine, the clamp is configured to contact and separate in a posture parallel to the endless body, and the sensor detects a parallel movement distance of the clamp, and The control device estimates the grain size of the reaper based on the detection result, and therefore, it has been difficult to detect changes in the grain size of the reaper with high sensitivity.

Japanese Patent Application Laid-Open No. 10-155329 JP-A-8-154458 JP, 2015-223095, A

  This invention is made in view of such a prior art, and an object of this invention is to provide the combine which can recognize the grain scale amount in a reaper precisely.

Combine the invention, in order to achieve the object, comprising a cutting device for performing cutting and transport of the culms, and threshing device for threshing receive the culms sent from the cutting device, and a control unit The reaper has an endless body which is rotationally driven endlessly to convey the reaping grain, and a holding surface having a predetermined length in the moving direction of the endless body, with respect to the endless body. And an endless body moving direction upstream and downstream of the pinching member, and the pinching surface is inclined with respect to the moving path of the endless body. First and second support rods that support the clamp so as to enable the clamp, a clamp support that supports the first and second support rods so as to be movable in the longitudinal direction, and the clamp can be endless It has a biasing member for urging the body, the clamping in the combine Inclination detection means for detecting an inclination is provided for said endless body of rod, the inclination detecting means includes a first and a second detection sensor for detecting the respective movement amounts of the first and second support rods, wherein The urging member includes first and second urging members that urge the first and second support rods toward the endless body, respectively, and the control device detects the first and second detection sensors. The inclination of the pinch is grasped based on the difference of values, and the separation distance of the pinch from the endless body is grasped based on the detection value of at least one of the first and second detection sensors, and the endless body providing combine said configured to recognize a grain稈量today扼杆inclination and on the basis of the distance said cutting device relative.

  The combine according to the present invention includes a drive source, a traveling device, a transmission interposed in a traveling system transmission path for transmitting rotational power from the drive source to the traveling device, and a vehicle speed setting member for setting 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 performs operation control 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. While the normal control is performed, the operation control of the drive source and / or the transmission is performed so that the vehicle speed becomes lower than the vehicle speed developed by the normal control when the grain size of the reaper exceeds a predetermined threshold. It is configured to execute load avoidance control to be performed.

  In a configuration in which the reaper includes a vertical transfer mechanism, and an auxiliary transfer mechanism disposed between the vertical transfer mechanism and a feed chain mechanism of the threshing apparatus, the endless body is a vertical transfer mechanism of the vertical transfer mechanism. A longitudinal transport for endless transportation including a transport endless and an auxiliary transport endless in the auxiliary transport mechanism, wherein the pinching is capable of contacting and separating with the longitudinal transport endless and the auxiliary transport endless. The urging member includes a nip and an auxiliary conveyance nip, and the urging member urges the vertical conveyance nip and the auxiliary conveyance nip toward the corresponding endless bodies. A vertical conveyance inclination detection that includes an urging member and an auxiliary conveyance urging member, wherein the inclination detection means detects an inclination of the vertical conveyance clamp and the auxiliary conveyance clamp with respect to the corresponding endless body. Means and an inclination detection means for auxiliary conveyance It is Dressings.

  In this case, the control device is configured to detect the amount of grain based on the inclination of the vertical conveyance pinch detected by the vertical conveyance inclination detection means and the auxiliary conveyance pinch detected by the auxiliary conveyance inclination detection means. Based on the culm amount based on the inclination of the culm, the culm amount of the reaping device is configured to be recognized.

According to the combine according to the present invention, the upstream side and downstream side of the endless member moving direction of the pinching device so as to contact and separate the pinching state of the harvesting device with the moving path of the endless body which cooperates with each other. side are supported by the first and second pivotally connected to the support rod and the first and second support rod longitudinally movably Kyo扼support each respective control device, the first and Based on the difference between the detection values of the first and second detection sensors that detect the amount of movement of each of the second support rods, the inclination of the nip is grasped and the detection value of at least one of the first and second detection sensors to grasp the distance from the endless material of the clamping扼杆based on, the said is configured to recognize the grain稈量today扼杆 based-out before SL cutting device to tilt and distance relative to the endless member In the reaper The conveyance amount of change in ToKoku稈 high sensitivity and can be accurately recognized.
Thereby, it is possible to effectively prevent the occurrence of clogging in the grain feeding device in the reaper, and as a result, it is possible to effectively prevent the breakage of the grain feeding device due to the clogging of grain and It is possible to effectively prevent the deterioration of the work efficiency due to the work of removing the clogging of the straw.

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 transmission schematic diagram of the combine. FIG. 4 is a side view of the reaper in the combine. FIG. 5 is a plan view of the reaper. FIG. 6 is a transmission schematic diagram of the reaper. FIG. 7 is a block diagram of a control device in the combine. FIG. 8 is a plan view of the vertical conveyance mechanism in the combine. FIG. 9 is a plan view of the vertical conveyance mechanism, showing a state in which the pinches are separated in a parallel posture with respect to the endless body. FIG. 10 is a plan view of the vertical conveyance mechanism, showing an inclined state in which the upstream side of the endless member moving direction of the pinch is separated from the endless body. FIG. 11 is a plan view of a vertical transport mechanism and a first auxiliary transport mechanism in a combine according to a modification of the present invention. FIG. 12 is a schematic plan view of a vertical transport mechanism in a combine according to another modification of the present invention.

Hereinafter, preferred embodiments of the combine according to the present invention will be described with reference to the attached 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.

As shown in FIG. 1 and FIG. 2, the combine 1 is self-eliminating type.
That is, the combine 1 includes the traveling body 10, traveling devices 20 such as a pair of traveling crawlers connected to the traveling body 10, an engine 25 mounted on the traveling body 10, and the engine 25. A transmission 30 interposed in a traveling system transmission path leading to the traveling crawler 20, an operation unit 40 mounted on the traveling machine body 10, a reaper 100 connected to the front of the traveling machine 10, and the reaper A threshing device 400 that threshs the harvested cereal mash that has been cut by 100 and a Glen tank 50 that stores the grains generated by the threshing device 400 are provided.

As shown in FIGS. 1 to 3, the driving unit 40 is disposed at the front of the traveling body 10 and at one side in the machine width direction.
In the present embodiment, one side and the other side in the machine body width direction respectively mean the right side and the left side facing the forward direction of the combine 1.

  The driving unit 40 includes a driver's seat 41 on which a driver can sit, and various operation members disposed in the vicinity of the driver's seat 41.

  As shown in FIGS. 1 to 3, the engine 25 is supported by the traveling machine body 10 using a space below the driving unit 40.

  As shown in FIG. 3, the transmission 30 is configured to shift the rotational power that is operatively input from the engine 25 and output it toward 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 (not shown) for shifting the rotational power input via the transmission input shaft 32.

  The transmission mechanism is, for example, a main transmission 35 (see FIG. 7 below) such as a hydraulic stepless transmission (HST) that performs stepless transmission according to an operation on the main transmission operation member 43 by the operator. It may include an auxiliary transmission (not shown) such as a gear type transmission that performs multi-speed shifting in response to an operation on an auxiliary transmission operation member by the operator by inputting rotational power from the main transmission.

4 to 6 show a side view, a plan view and a transmission schematic diagram of the reaper 100, respectively.
As shown in FIG. 4 and the like, the reaper 100 includes a reaper frame 110 including a reaper input pipe 111 extending in the machine width direction and a longitudinal transmission pipe 112 extending forward from the reaper input pipe 111.

The reaper input pipe 111 is supported so as to be rotatable about an axis by a reaper stand 15 provided upright on the traveling machine body 10, whereby the entire reaper 100 can be raised and lowered around the reaper input pipe 11. It has become.
The lifting position of the reaping device 100 can be adjusted by a lifting hydraulic cylinder device 90 (see FIG. 1) disposed between the traveling machine body 10 and the vertical transmission pipe 112.

  In the present embodiment, the reaper frame 110 includes a horizontal transmission pipe 113 connected to the lower end of the vertical transmission pipe 112 in a state along the machine width direction, and a plurality of forward transmission pipes 113. The lower frame 114 is a plurality of lower frames 114 arranged side by side with a predetermined interval in the machine width direction, and vertically transmitting pipes obliquely extending forward and upward from one side in the machine width direction of the lateral transmission pipe 113 115, an upper and lower support frame (not shown) obliquely extending forward and upward from the other side in the machine width direction of the lateral transmission pipe 113 so as to be substantially parallel to the vertical transmission pipe 115; The upper and lower transmission pipes 115 and an upper lateral transmission pipe 117 supported on the upper end of the upper and lower support frame are included.

  The reaper 100 further includes a herbaceous body 125, a grain raising device 130, a cutting blade device 140, and a grain carrier transfer device (transfer device) 150 supported by the reaper frame 110.

  The bunching body 125 is supported at the front end of the lower frame 50, and branches the uncut grain weirs of the field every one row.

  The tow raising device 130 is for causing uncut grain to have a raising case 131, a star wheel 132, and a scratching belt 133.

The raising case 131 is supported by the upper lateral transmission pipe 117 and the lower frame 114 in a standing state at the rear of the grass body 125.
The raising case 131 supports a raising tine 135 that is driven to rotate in an endless manner, and the raising tine 135 raises an uncut grain weir that has entered between the adjacent grass bodies 125.

  The star wheel 132 and the take-in belt 133 are arranged at the lower rear part of the raising case 131, and the uncut grain stalk is raised by the raising tine 135 supported by the raising case 131. It is configured to scratch the former side backward.

The cutting blade device 140 is for cutting the stock origin of the uncut grain weirs in the field, and has a hair clipper-type cutting blade that reciprocates in the machine body width direction and in the machine body width direction.
In the present embodiment, the cutting blade device 140 is a root of an uncut grain weir which is erected by the pulling tine 135 and whose root is scraped backward by the star foil 58 and the scratching belt 59. It is disposed below the star wheel 58 and the scratching belt 59 so as to be cut.

  The transfer device 150 transfers the harvested cereals inherited from the cereal raising device 130 to the feed chain mechanism 420 of the threshing device 400.

  Specifically, the transport device 150 includes a lower transport mechanism 160 that transports the stock of the harvested cereal rice cake inherited from the grain masher raising device 130 to the rear, and The upper transport mechanism 170 that transports the tip side backward, the vertical transport mechanism 180 that transports the stock of the harvested cereals inherited from the lower transport mechanism 160 rearward, and the vertical chain mechanism 200 to the feed chain mechanism 420 First and second auxiliary transport mechanisms 250 (1) and 250 (2) for transporting the cereal stocks.

  In the present embodiment, as shown in FIG. 5 and the like, the lower transport mechanism 160 is provided with a plurality of left sides (four lines in the illustrated embodiment) of the plural lines (four lines in the illustrated embodiment) which can be cut by the combine 1. The left lower transport mechanism 160L that conveys the stock of the harvested cereals of 2) in the form diagonally to the left and the stock of the right multiples (2 in the illustrated form) of the harvested cereals And a lower right transport mechanism 160R that transports backward.

  The lower left 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. And an endless body 165L.

  Similarly, the lower right transport mechanism 160R includes 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. And an endless body 165R wound around the

In the present embodiment, as shown in FIG. 5 and the like, the upper transfer mechanism 170 transfers the tip end side of the cutting grain weir to which the stock origin is transferred by the lower left transfer mechanism 160L to the rear. 170L and, on the front side, carry the tip side of the harvesting grain casket whose stock origin is transported by the lower-right conveying mechanism 160R to the rear, and on the back side including the harvesting grain clump that joins from the upper left conveying mechanism 170L , And an upper right conveying mechanism 170R for conveying the tip side of all the cropping grain weirs backward.
Each of the upper left conveying mechanism 170L and the upper right conveying mechanism 170R has a tine 175 which is rotationally driven endlessly.

  The vertical transport mechanism 200 is transported by the lower left transport mechanism 160L and the lower right transport mechanism 160R, inherits the stock of the merged harvested cereal grains, and transports toward the feed chain mechanism 420 obliquely upward at the rear. Do.

  The vertical transport mechanism 200 includes 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, and the drive sprocket and the driven sprocket. And an endless body 205.

  Each of the first and second auxiliary conveyance mechanisms 250 (1), 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 endless body 255 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 carp fan 440 for supplying selection air to the rocking and sorting mechanism 430, a processing cylinder 450 for reprocessing the grain removal taken out by the threshing cylinder 410, and the rocking and sorting mechanism 430 And a dust collection fan 480 for discharging the dust removed from the grain by the rocking and sorting mechanism 430 to the outside of the machine. It is provided.

  The threshing cylinder 410 has a threshing cylinder shaft 411 driven by power transmitted from the engine 25 and a threshing cylinder main body supported by the threshing cylinder shaft 411 so as not to be relatively rotatable.

  The rocking and sorting mechanism 430 is configured to carry out specific gravity sorting on the grain removed by the threshing cylinder 410 and leaking from a net disposed under the throttling 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. 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 box-and-tube fan main body which supplies a selection style.

  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 processing cylinder 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 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-collecting fan main body to be discharged out of the machine.

Next, the transmission structure in the combine 1 will be described mainly with reference to FIGS. 3 and 6.
The rotational power from the engine 25 is transmitted to the transmission input shaft 32 via a traveling system transmission mechanism 500 which forms a traveling system transmission path, is shifted by the transmission mechanism, and is transmitted to the drive axle of the traveling device 20 Ru.
Reference numeral 505 in FIG. 3 denotes a main clutch provided in the traveling system transmission mechanism 500.

To the reaper 100, rotational power synchronized with the vehicle speed is transmitted.
That is, the transmission 30 has a reaper PTO shaft 35 for outputting rotational power synchronized with the vehicle speed, and the rotational power of the reaper PTO shaft 35 forms a reaper transmission path via the reaper transmission mechanism 510. It is transmitted to the reaper input shaft 520 supported by the reaper input pipe 111 by interpolation.
In addition, the code | symbol 515 in FIG.3 and FIG.6 is a reaper clutch.

  The cutting input shaft 520 is operatively connected to a vertical transmission shaft 522 inserted and supported by the vertical transmission pipe 112 via a bevel gear train, and is also operatively connected to an upper transmission mechanism 524 via a bevel gear train. .

  The upper transmission mechanism 524 operates to transmit rotational power from the reaper input shaft 520 to the upper right conveyance mechanism 170R and the first auxiliary conveyance mechanism 250 (1).

  The vertical transmission shaft 522 is operatively connected to the first lower drive shaft 526 (1) inserted and supported by the horizontal transmission pipe 113 via a bevel gear train, and also to the lower transmission mechanism 528 via a bevel gear train. It is operatively connected.

  The lower transmission mechanism 528 transmits rotational power from the vertical transmission shaft 522 to the vertical conveyance mechanism 200 and the lower right conveyance mechanism 160R.

  In addition to the first lower drive shaft 526 (1), the lateral transmission pipe 113 includes a second lower drive shaft 526 (2) coaxially disposed with the first lower drive shaft 526 (1); A bevel gear train 528 for operatively connecting the first and second lower drive shafts 526 (1), 526 (2) is accommodated.

The first lower drive shaft 526 (1) is operatively connected to the cutting blade device 140.
On the other hand, the second lower drive shaft 526 (2) is operatively connected to a vertical transmission shaft 530 inserted and supported by the vertical transmission pipe 115.

  The vertical transmission shaft 530 is operatively connected to a pulling drive shaft 532 inserted and supported by the upper lateral transmission pipe 117, and is also operatively connected to the left transmission mechanism 534 via a bevel gear train.

  The left transmission mechanism 534 transmits rotational power from the vertical transmission shaft 530 to the lower left conveyance mechanism 160L and the upper left conveyance mechanism 170L.

  The raising drive shaft 532 is operatively connected to the raising tine 135, the star wheel 132 and the scratching belt 33.

The rotational power that is not synchronized with the vehicle speed is transmitted to the threshing device 400.
That is, as shown in FIG. 3, the rotational power from the engine 25 is operatively transmitted to the threshing input shaft 560 through the threshing system transmission mechanism 550 which forms a threshing system transmission path.
In addition, the code | symbol 555 in FIG. 3 is the threshing clutch with which the said threshing system transmission mechanism 550 was equipped.

  The threshing input shaft 560 is operatively connected to the threshing barrel shaft 411 and the processing barrel shaft 451 via a threshing drive mechanism 562.

  The threshing input shaft 560 further includes the Karatsu shaft 441, the first conveyor mechanism 461, the cereal conveyor mechanism 462, the second conveyor mechanism 465, the second reduction conveyor mechanism 470, through a transmission mechanism. It is operatively connected to the swing shaft 481 of the swing sorting mechanism 480, the dust collecting shaft, the feed chain mechanism 420, and the second auxiliary transfer mechanism 250 (2).

  Reference numeral 490 in FIG. 3 is a scraper that shreds the scrap remaining in the rocking and sorting mechanism 480 and is driven by rotational power transmitted from the threshing input shaft 560.

  Further, the threshing input shaft 560 is also operatively connected to the cutting input shaft 520 via a power injection clutch 575. By connecting the power injection clutch 575, the engine does not pass through the transmission 30. The rotary power from 25 is transmitted to the reaper 100 so that the reaper 100 can be driven at a constant speed regardless of the traveling speed of the combine 1.

  The rotational power from the engine 25 is further supplied to a bottom conveyor 590 in the Glen tank 50, a vertical conveyor 592 in the vertical auger cylinder, and a Glen tank transmission mechanism 580 in which a grain discharge clutch 585 is inserted. The operation is also transmitted to the discharge conveyor 594 in the horizontal auger cylinder.

Here, a control structure of the combine 1 will be described.
FIG. 7 shows a block diagram of the control device 600 in the combine.
As shown in FIG. 7, in the present embodiment, the control device 600 has a plurality of controllers such as a main unit controller 601 and an engine controller 602.

  A sensor and an actuator 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 the CAN communication bus 605.

  Each of the controllers 601 and 602 is an operation unit (hereinafter referred to as a CPU) including control operation means for executing operation processing based on the signals inputted from the various sensors etc., and ROM for storing control programs, control data etc. It includes an EEPROM in which setting values and the like are not lost even when the power is turned off and the setting values and the like are rewritable, and a RAM that temporarily holds data generated during calculation by the calculation unit. And a storage unit.

  As the output control of the engine 25, the control device 600 performs normal control to operate an engine rotation speed changing actuator so that the engine rotation speed becomes a setting rotation speed by the manually operated engine rotation speed setting operation member 42. It is configured to run.

  Specifically, as shown in FIG. 7, the combine 1 includes an engine rotation number setting operation member 42 such as an accelerator dial, and an operation-side engine rotation number sensor 42a that detects an operation position of the engine rotation number setting operation member 42. The fuel injection device 80 acts as an engine rotational speed changing actuator, and an operation side engine rotational speed sensor 80a for detecting the engine rotational speed.

As shown in FIG. 7, 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. The common rail 85 stores the fuel to be accumulated in a pressure-accumulated state, and a plurality of injectors 86 inject the accumulated fuel in the common rail 85 to the cylinders of the engine 250.
Reference numeral 85 a in FIG. 7 denotes a pressure sensor for detecting the internal pressure of the common rail 85.

  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 42a as a target rotational speed of the engine rotational speed.

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

  That is, the control device 800 inputs the operation position of the engine rotation number setting operation member 42 such as an accelerator dial from the acceleration sensor 42a, recognizes a target engine rotation number, and calculates the target engine calculated using the control data. The injector 86 is operated to inject a fuel injection amount corresponding to the rotational speed, and it is determined whether the actual engine rotational speed detected by the engine rotational speed sensor 80a matches the target engine rotational speed. The operation control of the injector 86 is performed so that the two coincide with each other.

In the present embodiment, an 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 has a main shift 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 detected by the operation side shift sensor (vehicle speed sensor) 610a corresponds to the speed according to the manual operation on the main shift operating member 43 such as the main shift lever. Thus, the operation control of the main shift actuator 610 is performed.

  Reference numeral 43a in FIG. 7 denotes an operation side shift sensor that detects the operation position (operation direction and / or operation amount) of the main shift operation member 43.

Further, reference numeral 36 in FIG. 7 denotes a turning HST which acts as a turning drive mechanism.
The output state of the turning HST 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 44 such as a steering column by the operation side turning sensor 44a, and the output rotation speed of the turning HST detected by the operation side turning sensor 620a is the turning operation member 44. The operation control of the pivoting actuator 620 is performed so that the speed according to the operation position of

Further, the control device 600 operates the reaping actuator 630 and the threshing actuator 640 based on signals from the reaping switch 45a and the threshing switch 45b that respectively detect whether the work lever 45 is located at the reaping position and the threshing position. Then, the reaper clutch 515 and the threshing clutch 555 are engaged and disengaged.
Further, the control device 600 operates the grain discharge actuator 650 based on a signal from the sensor 46 a that detects the operation state of the grain discharge operation member 46, and engages / disengages the grain discharge clutch 585.

  The combine 1 according to the present embodiment has a grain scale detection mechanism 700 for detecting the grain scale of the reaper 100 (the transfer unit 150), and the control apparatus 600 measures the grain scale. Based on a signal from the detection mechanism 700, it is configured to recognize the amount of cereal gravel of the reaper 100 (the transport device 150).

Hereinafter, the grain scale detection mechanism 700 will be described.
The grain scale detection mechanism 700 is provided in the reaper 100.
As described above, the reaper 100 includes the grain feeding mechanism 150, and the grain feeding mechanism 150 has an endless body that is rotationally driven endlessly to feed the grain.
The grain scale amount detection mechanism 700 detects the grain scale amount of the reaper 100 (the transfer device 150) by using a pinching motion for holding the reaping grain scale in cooperation with the endless body. It is configured to

In the present embodiment, the grain scale detection mechanism 700 is provided in the vertical transport mechanism 200.
FIG. 8 shows a plan view of the vertical transport mechanism 200. As shown in FIG.

  As shown in FIG. 5 and FIG. 8, the vertical transfer mechanism 200 includes a vertical transfer clamp 210 which can be moved in contact with and separated from the endless body 205, and the vertical transfer clamp 210 as the endless transfer mechanism. And a longitudinal conveyance biasing member 230 for biasing the body 205.

The vertical conveyance clamp 210 has a holding surface 211 having a predetermined length in the moving direction of the endless member 205.
In the present embodiment, as shown in FIG. 8, the vertical transfer mechanism 200 extends in a direction substantially orthogonal to the moving direction of the endless member 205, and the vertical transfer clamp 210 can be turned. A pair of first and second vertical conveying support rods 220 (1) and 220 (2) to be supported, and a vertical conveying pinch support 240 fixed to a fixing member such as the cutting frame 110 are provided. There is.

The first and second longitudinal transport support rods 220 (1) and 220 (2) are supported by the longitudinal transport pinch support 240 so as to be movable in the longitudinal direction.
The first and second longitudinal transfer support rods 220 (1) and 220 (2) are disposed upstream and downstream with respect to the movement direction of the endless member 205, respectively.
In FIGS. 5 and 8, the left side is the upstream side in the moving direction of the endless body 205.

  In this configuration, as shown in FIG. 8, the vertical transfer mechanism 200 uses the first and second vertical transfer support rods 220 (1) as the longitudinal transfer biasing member 230 as the endless members, respectively. It has the 1st and 2nd vertical conveyance urging | biasing member 230 (1), 230 (2) urged | biased toward.

Specifically, a receiving plate 221 is fixed to each of the first and second vertical transport support rods 220 (1), 220 (2).
The first and second vertical conveying urging members 230 (1) and 230 (2) have base ends engaged with a support plate 241 fixed to the vertical conveying pinch support 240 and distal ends. It is engaged with the receiving plate 221 fixed to the corresponding vertical conveying support rod 220 and biases the corresponding vertical conveying support rod 220 toward the endless body 205.

With this configuration, the vertical transfer clamp 210 is in contact with the endless body 205 in accordance with the amount of grain carried by the vertical transfer mechanism 200 in a state where it can be inclined with respect to the endless body 205. Let go.
That is, when the amount of grain to be conveyed is small, the longitudinal conveyance pinching pin 210 approaches the endless body 205 by the biasing force of the longitudinal conveyance biasing member 230.
Note that FIG. 8 shows a state in which the vertical conveyance pinching blade 210 is closest to the endless body 205.

On the other hand, when the amount of grains transferred is increased, it is pushed by the grain in a direction to be separated from the endless belt 205 from the clamping for vertical conveyance 210.
At this time, while the receiving plate 221 fixed to the vertical transfer support rod 220 compresses the vertical transfer biasing member 230, the vertical transfer support rod 220 is pushed in a direction away from the endless body 205. Be moved (see FIG. 9).

  Then, when the amount of grains transferred is reduced, the first and second vertical transfer support rods 220 (the first and second vertical transfer support members 220 (1), 230 (2) are driven by the biasing force of the first and second vertical transfer biasing members 230 (1), 1), 220 (2) is pushed in the direction approaching the endless body 205, and the longitudinal conveyance pinching pin 210 approaches the endless body 205 and returns to the state shown in FIG.

  The grain scale amount detection mechanism 700 has inclination detection means 710 for detecting the inclination of the longitudinal conveyance clamp 210 with respect to the endless body 205.

  In the present embodiment, the tilt detecting means 710 is a first and second potentiometer such as a potentiometer for detecting the amount of movement of each of the first and second vertical transport support rods 220 (1), 220 (2). It has detection sensors 715 (1) and 715 (2) for vertical conveyance.

Specifically, the inclination detecting means 710 has a base end portion rotatably supported by the vertical conveyance pinch support 240 and a distal end portion that is supported by the first and second vertical conveyance support rods 220 (1), The first and second detection arms 716 are engaged with 220 (2) and rotate around the base end in accordance with the axial movement of the first and second support rods 220 (1) and 220 (2). 1) and 716 (2), and the first and second vertical transfer detection sensors 715 (1) and 715 (2) are the first and second detection arms 716 (1) and 716 (2). Is configured to detect the rotation angle of the proximal end portion of.
Instead of this, the tilt detecting means 710 can detect the first and second longitudinal conveying support rods 220 (1), 220 (2), such as a magnetic linear scale that can detect the amount of movement in the axial direction. It is also possible to constitute so as to include the first and second longitudinal conveyance detection sensors.

  The control device 600 recognizes the inclination of the vertical conveyance clamp 210 based on the difference between the detection values of the first and second vertical conveyance detection sensors 715 (1) and 715 (2), and Based on this, the reaping amount of the reaping device 100 (the conveying device 150) is recognized.

  That is, when the amount of cereals to be transported changes in the increasing direction, first, the vertical transport nips are arranged such that the upstream side of the endless body 205 in the moving direction of the endless body 205 is separated from the endless body 205. 210 tilts with respect to the endless body 205.

  At this time, the second longitudinal transfer support rod 220 (2) located on the downstream side of the movement direction of the endless body 205 does not move substantially, and the second on the upstream side of the movement direction of the endless body 205 (1) The vertical transport support rod 220 (1) moves in the direction away from the endless body 205 against the biasing force of the first longitudinal transport biasing member 230 (2) (see FIG. 10).

  Therefore, the inclination of the longitudinal conveyance clamp 210 can be detected by detecting the difference between the detection values of the first and second longitudinal conveyance detection sensors 715 (1) and 715 (2).

According to this configuration, the pinching rod of the grain feeding mechanism is configured to be in contact with and separated from the endless body in a parallel posture, and the cutting distance is detected by detecting the parallel movement distance of the pinching portion with respect to the endless body. Compared to the conventional configuration that recognizes the change in the amount of transported rice bran, it is possible to detect the change in the amount of transported rice bran with high sensitivity and accuracy.
That is, the axes of the first and second vertical transfer support rods 220 (1) and 220 (2) that are rotatably connected to the front end side and the rear end side of the vertical transfer nip 210, respectively. The amount of directional movement is independently measured, and this enables accurate detection of disturbance (non-uniformity) in the distribution of the culm amount in the conveyance path, which is a precursor to the occurrence of cereal clogging.

Further, in the present embodiment, in addition to the inclination of the vertical conveying nip 210, the distance of the vertical conveying nip 210 from the endless body 205 can also be detected.
That is, the control device 600 determines from the endless body 205 of the vertical conveyance nip 210 based on the detection value of at least one of the first and second vertical conveyance detection sensors 715 (1) and 715 (2). Configured to recognize the amount of grain of the reaper 100 (the transfer device 150) based on the inclination and the distance of the longitudinal transfer clamp 210 with respect to the endless member 205. can do.
According to this configuration, it is possible to more accurately recognize the situation of the grain scale amount of the reaper 100 (the transfer device 150).

  Preferably, the control device 600 can reduce the traveling speed of the combine 1 when it is determined that the grain scale amount of the reaper 100 (the transport device 150) exceeds a predetermined threshold.

  That is, as described above, the control device 600 causes the rotational power output from the transmission to have a rotational speed corresponding to the vehicle speed set by the engine rotational speed setting operation member 42 and the vehicle speed setting member 43. Operation control (hereinafter referred to as normal control) of the engine 25 and / or the main transmission 35 is performed.

On the other hand, when the control device 600 determines that the amount of the culm detected by the culm amount detection mechanism 700 exceeds a predetermined threshold value, the control device 600 becomes slower than the vehicle speed that appears in the normal control. As described above, load avoidance control may be performed to control the operation of the engine 25 and / or the main transmission 35.
Note that controlling the engine 25 at a lower speed than the vehicle speed that is realized by the normal control also includes a mode in which the engine 25 is forcibly stopped.

  Further, in the present embodiment, the grain scale detection mechanism 700 includes the inclination detection means 710 for detecting the inclination of the vertical conveyance clamp 210, but instead of the inclination detection means 710. Alternatively or additionally, it may be configured to have a tilt detection means 760 for detecting the tilt of the auxiliary conveyance clamp 260 provided in the first auxiliary conveyance mechanism 250 (1).

  FIG. 11 is a plan view of the vertical conveyance mechanism 150 and the first auxiliary conveyance mechanism 250 (1) in a modification in which the grain scale detection mechanism 700 is configured to have the inclination detection means 710 and 760. .

As shown in FIG. 11, the auxiliary transfer clamp 260 has a holding surface 261 having a predetermined length in the moving direction of the endless member 255.
The first auxiliary transport mechanism 250 (1) extends in a direction substantially orthogonal to the moving direction of the endless body 255, and a pair of first and second supports that rotatably support the auxiliary transport clamp 260. The support rods 270 (1), 270 (2) for auxiliary conveyance and the fixing members such as the cutting frame 110 are fixedly installed, and the pair of first and second support rods 270 for auxiliary conveyance are 270 (2) ) And the first and second auxiliary transfer support rods 270 (1) and 270 (2) are directed toward the endless body 255, respectively. First and second auxiliary transfer biasing members (not shown) for biasing.
The first and second auxiliary transport support rods 270 (1) and 270 (2) are disposed on the upstream side and the downstream side, respectively, with respect to the moving direction of the endless body 255.

  In the modification shown in FIG. 11, the inclination detecting means 760 includes first and second auxiliary conveyance detection sensors 765 (1) and 765 (2) such as potentiometers, and the base end is the pinch for the auxiliary conveyance. The distal end portion is rotatably supported by the support 290 and engaged with the first and second auxiliary transfer support rods 270 (1) and 270 (2), and the first and second support rods 270 (1 And 270 (2), and has first and second detection arms 766 (1) and 766 (2) that rotate around the proximal end, and the first and second detection arms The auxiliary conveyance detection sensors 765 (1) and 765 (2) are configured to detect the rotation angle of the proximal end of the first and second detection arms 766 (1) and 766 (2).

  In the modification shown in FIG. 11, the control device 600 determines the amount of cereal grains based on the inclination (and the separation distance) of the vertical conveyance clamp 210 detected by the inclination detection means 710, and / or Based on the amount of culm based on the inclination (and the separation distance) of the auxiliary conveying nip 760 detected by the inclination detecting means 760, the culm amount of the reaping device 100 (the conveying device 150) is recognized. It can be configured.

  Moreover, in the present embodiment, as described above, the inclination detecting means 710 (760) detects the moving distance of the clamp 210 (260) in addition to the inclination of the clamp 210 (260). However, the present invention is not limited to such a configuration.

FIG. 12 shows a schematic plan view of the vertical conveyance mechanism portion in the modification.
In FIG. 12, substantially the same members as in the present embodiment are given the same reference numerals.

In the modification shown in FIG. 12, the first and second longitudinal transfer support rods 220 (1), 220 (2) are connected to each other to form a single support rod 220A that moves integrally. The single support rod 220A is supported by the longitudinal conveyance pinching support 240 so as to be capable of performing a tilting operation in addition to a contact and separation operation with respect to the endless body 205.
The tilt detecting means 715 is configured to detect the tilt of the single support rod 220A with respect to the pinching support 240.

  That is, a connecting arm 225 is fixed to the single support rod 220A, and a distal end side of the connecting arm 225 is engaged with the detection arm 716, and the single support rod 220A is attached to the pinching support 240. When tilted, the detection arm 716 rotates around the base end.

DESCRIPTION OF SYMBOLS 1 Combine 20 Traveling apparatus 25 Engine 35 Main transmission 43 Main transmission operating member 100 Cutting device 200 Vertical conveyance mechanism 205 Endless body 210 Vertical conveyance pinch 211 Nipping surfaces 220 (1), 220 (2) First and first 2 Vertical conveying support rods 230 (1), 230 (2) First and second vertical conveying urging members 240 Vertical conveying pinching support 250 (1) First auxiliary conveying mechanism 255 Endless body 260 For auxiliary conveying Clamp 261 Clamping surface 400 Threshing device 420 Feed chain mechanism 600 Control device 710 Inclination detection means 715 (1), 715 (2) first and second longitudinal conveyance detection sensor 760 Inclination detection means 765 (1), 765 (2) First and second auxiliary conveyance detection sensors

Claims (3)

A cutting device for performing cutting and transport of the culms, and threshing device for threshing receive the culms sent from the cutting device, a combine equipped with a control device,
The reaper has an endless body which is rotationally driven endlessly to convey the reaper and a pinching surface having a predetermined length in the moving direction of the endless body, and can come in contact with or separate from the endless body. And an endless body moving direction upstream and downstream sides of the pinching , and the pinching surface is tiltable with respect to the moving path of the endless body. First and second support rods supporting the clamp, a clamp support supporting the first and second support rods so as to be movable in the longitudinal direction, and the clamp facing the endless body have a biasing member for biasing,
The combine is provided with inclination detection means for detecting the inclination of the pinch with respect to the endless body,
The tilt detection means includes first and second detection sensors that detect the amount of movement of each of the first and second support rods ,
The biasing member includes first and second biasing members that bias the first and second support rods toward the endless body, respectively.
The control device grasps the inclination of the pinch based on a difference between detection values of the first and second detection sensors, and the pinch based on a detection value of at least one of the first and second detection sensors. A combine according to any one of the preceding claims, characterized in that the separation distance from the endless body is grasped, and the grain amount of the reaper is recognized based on the inclination and the separation distance of the pinch with respect to the endless body . A driving source, a traveling device, a transmission interposed in a traveling system transmission path for transmitting rotational power from the driving source to the traveling device, and a vehicle speed setting member for setting a vehicle speed.
The reaper is configured to receive 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, when the amount of culm of the reaper exceeds a predetermined threshold, load avoidance is performed to control the drive source and / or the transmission so that the speed is lower than the vehicle speed generated by the normal control. Combine according to claim 1, characterized in that to perform the control. The reaper includes a vertical transfer mechanism, and an auxiliary transfer mechanism disposed between the vertical transfer mechanism and a feed chain mechanism of the threshing device.
The endless body includes a longitudinal conveyance endless body in the longitudinal conveyance mechanism and an auxiliary conveyance endless body in the auxiliary conveyance mechanism.
The clamp includes a vertical transfer clamp and an auxiliary transfer clamp that can be separated from and attached to the vertical transfer endless body and the auxiliary transfer endless body, respectively.
The biasing member includes a vertical transfer biasing member and an auxiliary transfer biasing member that bias the vertical transfer clamp and the auxiliary transfer clamp toward the corresponding endless members, respectively.
The inclination detection means includes a vertical conveyance inclination detection means and an auxiliary conveyance inclination detection means for detecting an inclination of the vertical conveyance nip and the auxiliary conveyance nip relative to the corresponding endless body,
The control device includes an amount of the culm based on the inclination of the vertical conveyance nip detected by the vertical conveyance inclination detection means and the auxiliary conveyance nip detected by the auxiliary conveyance inclination detection means. The combine according to claim 1 or 2 , wherein the combine amount according to claim 1 or 2 , wherein the combine amount of the reaper is recognized based on a scale amount based on inclination.

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