JP2015012849A - General purpose combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a general purpose combine which can prevent the spill-out of grain culm from the inside of a platform at the finish of one-stroke harvest, can prevent the scoop-up of the grain culm by a tine of a rake-in reel even if a culm amount in the platform is too large, and makes favorable the drainage of the grain culm from the inside of the platform by promoting the grain culm transfer of a platform auger.SOLUTION: A general purpose combine comprises: an actuator 29 which adjusts a position of a rake-in reel in a vertical direction with respect to a reaper; an actuator 28 which adjusts the position of the rake-in reel in a fore-and-aft direction; a clutch for intermitting power transmission to the rake-in reel; and command means 68, 69 and 77 which apply, to an operation part, a descending command of the rake-in reel, a rear movement command, and a rotation stop command. The rake-in reel is descended and moved rearward by the command means, and the rotation of the rake-in reel is stopped irrespective of drive states of the platform auger and a feeder.

Description

  The present invention relates to a general-purpose combine for harvesting and harvesting crops such as wheat, buckwheat, rapeseed, soybean, or paddy rice with a scraping reel.

The harvesting device for a general purpose combiner is provided with a scraping reel having a tine held so as to face downward at all times in order to satisfactorily scrape the grains into the platform. In addition, the take-up reel can be moved up and down with respect to the reaping device, and is attached so that its position can be adjusted back and forth, and is configured so that it can be raked in an optimum position according to the growth situation and lodging situation of the planted cereal. ing.
Furthermore, in recent years, one operation of the switch causes the scraping reel to descend, move backward, and increase the rotational speed, and forcibly scrapes into the platform without spilling corn straw when cutting at the four corners of the field. It is known to have automatic control (see, for example, Patent Document 1).
On the other hand, in general-purpose combiners, hand-harvested corn straw of the headland part or spilled grain potatoes during cutting may be manually put into the platform.In this case, in order to ensure the safety of workers, It has been proposed that an operation device for stopping the drive of the take-up reel and the cutting blade is provided on the outer surface side of the platform, and the drive of the take-up reel and the cut blade is stopped when performing the loading operation (for example, see Patent Document 2). .)

JP 2013-81379 A JP-A-6-22627

By the way, in the general-purpose combine shown in Patent Document 1, as described above, the cutting reel is lowered at the time of cutting at the four corners of the field, the front side of the platform is blocked by the driving reel, and the driving reel is used as a cutting device. On the other hand, the planted culm is pulled into the platform by being moved to the rearmost position, and the forced squeeze control is performed so that the cereal is not spilled from the platform.
However, in this case, the amount of dredging is so large that the platform auger is laterally fed, and the succeeding feeder has not been sufficiently scraped, that is, the amount of dredging in the platform has been sufficiently swept. If forced take-up control of the take-up reel is executed in the absence, the take-up reel tine will cause the cereal to be rolled up and scattered over and around the reaping device. There has been a problem that the collection work or removal work by the hand of the scissors becomes troublesome. In forced scraping control, increasing the rotation speed of the scraping reel to increase the scraping ability was also considered to be a factor of the above problem.

  Therefore, when such a situation occurs, the rotation of the take-up reel is stopped to prevent winding of the culm by the tine, and the cereal is pushed downward by the tine mounting cradle and laterally fed by the platform auger. It has been found effective to promote However, on the other hand, in the aspect of stopping the take-up reel, as in Patent Document 2 which is technically common, if the stop operation device for the take-up reel is provided on the outer surface side of the platform, It was necessary to stop the rotation of the take-in reel, and it was assumed that the cutting operation could not be performed efficiently.

  Therefore, in view of such problems, the present invention can prevent spillage of cereals from the platform at the end of the cutting of one stroke, etc., and even if the amount of slag in the platform is excessively high, A general-purpose combine that prevents the rolling of cereals by the tine of the reel, further facilitates the transportation of the cereals of the platform auger, improves the sweeping of the cereals from within the platform, and enables efficient cutting operations It is an issue to provide.

  In order to solve the above-mentioned problem, the present invention firstly provides a maneuvering unit, a threshing device, and a grain tank in a machine body provided with a traveling device, and a cutting machine including a scraping reel, a cutting blade, an auger, and a feeder in front of the machine body In a general-purpose combiner provided with a device, an actuator for adjusting the position of the scraping reel in the vertical direction with respect to the reaping device and a clutch for intermittently transmitting power to the scraping reel are provided, while a scraping reel is provided in the control unit. Command means for instructing to lower the rotation and to stop rotation, and lowering the take-up reel by the command means, and can stop the rotation of the take-up reel regardless of the driving state of the auger and feeder. It is characterized by comprising as follows.

  Secondly, the present invention provides a general-purpose combine car that includes a steering unit, a threshing device, and a grain tank in a machine body that includes a traveling device, and a reaping device that includes a scraping reel, a cutting blade, an auger, and a feeder in front of the machine body. And an actuator for adjusting the position of the scraping reel in the vertical direction with respect to the reaping device and a clutch for intermittently transmitting power to the scraping reel. Command means for instructing the rotation of the take-up reel can be stopped regardless of the drive state of the auger and feeder when the take-up reel is lowered below a set height by the command means. It is characterized by comprising as follows.

  Thirdly, according to the present invention, a general-purpose combine vehicle is provided that includes a steering unit, a threshing device, and a grain tank in a machine body that includes a traveling device, and a cutting device that includes a scraping reel, a cutting blade, an auger, and a feeder in front of the vehicle body. An actuator for adjusting the position of the scraping reel in the vertical direction with respect to the reaping device, an actuator for adjusting the position of the scraping reel in the front-rear direction, and a clutch for intermittently transmitting power to the scraping reel. Command means for instructing lowering of the take-up reel, backward movement instruction, and rotation stop instruction is provided, the take-up reel is lowered and moved backward by the instruction means, and the rotation of the take-up reel is further controlled by the auger and feeder. It is characterized in that it can be stopped regardless of the driving state.

  According to the general-purpose combine of the present invention, an actuator for adjusting the position of the scraping reel in the vertical direction with respect to the reaping device and a clutch for intermittently transmitting power to the scraping reel are provided, while the steering reel Command means for instructing lowering and rotation stop is provided so that the scraping reel can be lowered by the commanding means, and the rotation of the scraping reel can be stopped regardless of the driving state of the auger and feeder. Since it is configured, it can be prevented by the tine mounting rod and tine of the take-up reel that lowered the spillage of the cereal from the platform at the end of the cutting of one stroke, etc., and the cereal by the tine of the rotating take-up reel It is possible to prevent the cocoon from being rolled up, and to eliminate the need for manual collection or removal of the rolled up cereal. In addition, since the cedar can be pushed down by the tine mounting の of the take-up reel that has stopped rotating and the lateral feeding of the cereal by the auger can be facilitated, the scab in the platform can be quickly swept away. it can.

  Further, according to the general combine of the present invention, an actuator for adjusting the position of the scraping reel in the vertical direction with respect to the reaping device and a clutch for intermittently transmitting power to the scraping reel are provided, while the control unit is scratched. Command means for instructing to lower the reel and to stop rotation is provided, and the rotation of the pick-up reel is independent of the driving state of the auger and feeder when the command reel lowers below the set height by the command means. In addition to the above effects, the picking reel rotates to force the planted culm at a high position where the rolling of the culm by the tine of the picking reel does not occur. Therefore, it is possible to reduce the head loss by reducing the spillage of the cereal than when the rotation of the scraping reel is stopped at a high position.

  Furthermore, according to the general-purpose combine of the present invention, an actuator for adjusting the position of the scraping reel in the vertical direction with respect to the reaping device, an actuator for adjusting the position of the scraping reel in the front-rear direction, and a clutch for intermittently transmitting power to the scraping reel, On the other hand, the control unit is provided with command means for instructing the lowering of the scraping reel, the backward movement instruction, and the rotation stop instruction. Since the rotation can be stopped regardless of the driving state of the auger and feeder, in addition to the above effect, the picking reel is moved to the rear position to force the planted culm into the platform. Therefore, it is possible to reliably eliminate spillage of cereals from within the platform and to further reduce head loss.

It is a top view of a general purpose combine. It is a side view of a general purpose combine. It is a side view of a reaping device. It is a side view of the general purpose combine which shows the state which lowered the reaping device with respect to the body, and raised the take-up reel with respect to the reaping device. It is a side view of the general purpose combine which shows the state which raised the mowing apparatus with respect to the body, and lowered the take-up reel with respect to the mowing apparatus. It is a power transmission system diagram of a general purpose combine. It is a perspective view of a control part. It is a rear view of the grip part of a multi steering lever. It is a top view of a switch panel. It is a block diagram of a controller (control part). It is a main flowchart. It is a flowchart of reel rotation control (1st Example). It is a characteristic diagram which shows the relationship between a vehicle speed and a reel rotational speed. It is a flowchart of forced scraping control. It is a flowchart of a heel presser control. It is a flowchart of reel rotation control (2nd Example). It is the side view of a tine, and the front view of the principal part.

  Embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 5, the general-purpose combiner includes a left and right crawler type traveling device 1 and a rectangular frame-shaped body frame 3 provided above the track frame 2 of the traveling device 1. On the other hand, the left and right traveling devices 1 are attached to be movable up and down by a posture control hydraulic cylinder (not shown). Further, a threshing device 4 for performing threshing and sorting of crops is provided on the left side in the traveling direction of the machine body frame 3, and a steering unit 5 and a grain tank 6 for storing grains are provided on the right and left sides. Further, in front of the threshing device 4 and the control unit 5, a reaping device 7 for reaping and transporting the crop to the threshing device 4 is provided. An engine 8 is mounted between the control unit 5 and the Glen tank 6, and the engine 8 functions as a power source for the crawler type traveling device 1, the threshing device 4, the reaping device 7, and the like.

  Here, the configuration of each device will be described in more detail. The cutting device 7 provided on the front side of the machine body is configured by integrally connecting a cutting frame 9 provided on the front side and a feeder 10 provided on the rear side. Yes. The left and right dividers 11 protrude from the left and right sides of the cutting frame 9 to the front, and a platform 12 formed by curving an iron plate is provided at the rear part between the left and right dividers 11. A columnar auger 13 (platform auger) extending in the direction is pivotally mounted so as to be rotationally driven, and a reciprocating cutting blade 14 in the left-right direction is provided in front of the platform auger 13.

  On the other hand, the feeder 10 is provided with a front-rear direction conveyor 15 (feeder conveyor) in a box-frame-like feeder house 10a, and the feeder conveyor 15 conveys the harvested crop culm backward. Note that the rear end portion of the feeder 10 is rotatably supported by the front portion of the body frame 3. Further, an elevating hydraulic cylinder 16 of the mowing device 7 is provided between the mowing frame 9 and the airframe frame 3, and the mowing device 7 moves up and down with respect to the airframe frame 3 by the expansion and contraction operation of the elevating hydraulic cylinder 16. The posture can be changed between a working state in which the reaping device 7 is lowered (see FIG. 4) and a non-working state in which the reaping device 7 is raised (see FIG. 5).

  Further, the reaping device 7 is provided with a scraping reel 17 between the left and right dividers 11, and the scraping reel 17 is provided with a drive shaft 19 rotatably supported at the distal ends of a pair of left and right support arms 18, and this A left and right rotation support body 20 having a polygonal shape (hexagonal shape in the embodiment) that rotates integrally with the drive shaft 19 is provided. Further, a plurality of tine attachment rods 21 extending in the left-right direction are rotatably mounted on the apex portions of the left and right rotation supports 20, and the tine 22 is suspended from each tine attachment rod 21 at predetermined intervals. Is attached. On one lateral outer side of the take-up reel 17, a posture holding rotator 23 that rotates around an axis that is deviated from the axis of the drive shaft 19 is provided, and is provided at each vertex of the posture holding rotator 23. By connecting the pivotal support 24 and one side end of the tine attachment rod 21 via the link 25, the tine 22 is held in a posture so that it always faces downward regardless of the rotation of the take-in reel 17.

  Further, a base portion of a pair of left and right swing arms 26 is pivotally supported on the left and right upper portions of the cutting frame 9, and a left and right swing shaft 27 is installed at the tip of the left and right swing arms 26. Has been. Then, the rear end portions of the pair of left and right support arms 18 of the take-up reel 17 are pivotally supported at both ends of the swing shaft 27, and one end is connected to the feeder 10 for forward / backward movement hydraulic cylinders. The other end of 28 is connected to the swing shaft 27, and the position of the take-up reel 17 can be adjusted back and forth with respect to the cutting frame 9 (the cutting device 7) by the expansion and contraction operation of the hydraulic cylinder 28. Further, a hydraulic cylinder 29 for raising and lowering the take-up reel is provided between the middle of one support arm 18 and the cutting frame 9, and the cutting frame 9 (the cutting device 7) is expanded and contracted by the hydraulic cylinder 29. The height of the take-up reel 17 can be adjusted vertically.

  The reaping device 7 configured as described above moves the general harvester as a working state by lowering the reaping device 7 by the lifting hydraulic cylinder 16 and moving the planted cereal to the object to be reaped by the left and right dividers 11. The weeds are chopped by the cutting blade 14 while being squeezed into the platform 12 by the rotational drive of the scraping reel 17. In addition, the cereals scraped into the platform 12 are laterally fed forward of the feeder 10 by the platform auger 13, and further the cereals laterally fed to the feeder 10 are scraped by the feeder conveyor 15 and conveyed backward. Then, the whole harvested corn straw is put into the threshing device 4.

  Next, the threshing device 4 will be described. The threshing device 4 includes a handling chamber 30 into which the cereal straw conveyed from the feeder 10 is introduced, and a sorting chamber 31 formed immediately below the handling chamber 30. A cylindrical handling cylinder 32 extending in the front-rear direction is rotatably supported in the handling chamber 30. In addition, a swinging sorting body 33 that moves back and forth is installed in the upper part of the sorting chamber 31, and a tang fan 34 that generates sorting winds obliquely upward and rearward is arranged on the lower front side in the sorting chamber 31. The first spiral 35 and the second spiral 36 are arranged in the front-rear direction in the middle part in the front-rear direction in the lower part of the chamber 31. A chaff sheave 37 comprising a plurality of fins 37a arranged in parallel in the front-rear direction is disposed in the rear half of the swing sorter 33, and the fins 37a are directed downward by a fin opening / closing actuator comprising an electric motor (not shown). As described above, or by turning the screen so as to face in the horizontal direction, it is possible to perform the optimum wind selection by adjusting the volume of the sorting wind blown upward on the swing sorting body 33.

  The threshing device 4 configured as described above is threshed while being transported rearward by a handling cylinder 32 that is rotationally driven by the cedar introduced into the handling chamber 30, and the processed product falls into the sorting chamber 31. . The processed material that has fallen into the sorting chamber 31 is swayed and sorted by the swaying sorter 33 and sorted (wind-selected) by the sorting wind. Specifically, the first thing that falls on the first spiral 35 without being affected by the sorting wind, and the second thing that falls slightly on the second spiral 36 after being slightly affected by the sorting wind, Sorted into waste such as sawdust blown upward and rearward under the influence of wind. Moreover, the first thing is conveyed in the grain tank 6 as a grain, the second thing is returned again in the sorting chamber 31 and wind-selected, and the discharged matter is discharged out of the machine from the rear end of the machine body. The grain in the Glen tank 6 is discharged out of the machine by a discharge auger 38 provided at the rear end of the machine body. Specifically, the discharge auger 38 is fixed to the body frame 3 so as to be swingable up and down and horizontally rotatable, and the discharge port 38a of the discharge auger 38 is moved to a predetermined position by swinging up and down or horizontally rotating the discharge auger 38. The grain can be discharged into a container loaded on a light truck or the like.

  Next, the power transmission system of the general purpose combiner will be described. As shown in FIG. 6, the power generated by the engine 8 serving as a power source is branched into a traveling system and a working system via a belt on the most upstream side of the transmission. The traveling system power is forward and backward and continuously variable by a hydrostatic continuously variable transmission (HST) 39, then transmitted to the traveling transmission case 40, and provided in the traveling transmission case 40. It is transmitted to the left and right crawler type traveling devices 1 through the device, the left and right side clutches, the deceleration turn clutch, and the brake. On the other hand, the working system power is transmitted to the threshing device 4 via the threshing clutch 41, and the power on the threshing device 4 side is transmitted to the reaping device 7 side via the reaping clutch 42.

  The power transmitted to the cutting device 7 side is transmitted to the feeder drive shaft 43 via a chain to drive the feeder conveyor 15, and the power transmitted to the feeder drive shaft 43 is relayed via the chain. 44 is transmitted to one drive side shaft 44a, and the platform auger 13 is driven from the drive side shaft 44a via a chain. Further, a reel / cutting blade claw clutch 45 is inserted between the drive side shaft 44a and the other driven side shaft 44b provided coaxially, and the claw clutch 45 transmits power to the lower transmission side. Can be intermittent. The pawl clutch 45 is turned on and off by an electric motor 46 for the reel and cutting blade clutch. However, the clutch can be turned on and off by an expansion and contraction operation of a hydraulic cylinder instead of the electric motor 46, or the pawl clutch 45 itself can be turned on by a hydraulic friction clutch or the like. It can also be configured in place of power interrupting means such as an electromagnetic clutch.

  The power transmitted to the driven shaft 44b is transmitted to the cutting blade drive shaft 47 via a belt, and the cutting blade 14 is driven. Further, the power transmitted to the driven shaft 44b is transmitted to the take-up reel transmission 48 via a chain. Here, the take-up reel transmission 48 includes a belt-type continuously variable transmission configured by combining a V-belt 51 and two variable diameter pulleys 52 and 53 between an input shaft 49 and an output shaft 50. The power changed by the reel transmission device 48 is transmitted from the output shaft 50 to the intermediate shaft 54 via the chain, and further transmitted from the intermediate shaft 54 to the drive shaft 19 of the take-up reel 17 via the chain. The reel 17 is rotationally driven. The take-up reel transmission device 48 is housed in a transmission case 18a that constitutes one of the left and right support arms 18 of the take-up reel 17.

  Next, the control unit 5 of the general purpose combine will be described. As shown in FIGS. 1 and 7, the control unit 5 includes a step 55, a seat 57 mounted on the engine cover 56, a side panel 58 erected on the side of the seat 57, and a front of the seat 57. The front panel 59 and the like. Of these, the side panel 58 is provided with a travel speed change lever 60 protruding from the guide groove, a switch panel 61 incorporated in the side panel 58, and the like. The take-in switch 62 and the heel presser switch 63 are integrally incorporated. The travel shift lever 60 rotates the trunnion shaft (not shown) of the hydrostatic continuously variable transmission (HST) 39 by operating it forward or backward from the neutral position, and performs a main shift operation for travel. is there.

  The front panel 59 is provided with a multi-steering lever 64, a monitor 65 for displaying the engine speed, fuel gauge, vehicle speed, load state, etc., a cutting height setting dial 66 and the like. A trigger switch 67 and a reel up / down switch 68 and a reel front / rear switch 69 are integrally incorporated on the front side of the grip and the rear side of the grip as shown in FIG. Note that the multi-steer lever 64 swings the lifting hydraulic cylinder 16 by swinging back and forth to lift and lower the reaping device 7, and the left and right side clutches provided in the traveling transmission case 40 by swinging left and right. Or the brake is operated to steer and turn the aircraft.

  Further, as shown in FIG. 9, the switch panel 61 incorporated in the side panel 58 has a turn switching dial 70 (which increases the driving force during turning by a certain amount) for switching the turning mode of the traveling device 1 to a deceleration turn, a brake turn, or the like. With wet field switch), the selection dial 71 for adjusting the opening degree of the fin 37a to adjust the air volume of the selection wind, and the left and right traveling devices 1 are raised and lowered independently based on the detection value of the inclination sensor for detecting the inclination angle of the airframe. The horizontal changeover switch 72 that automatically controls the aircraft to the ground level or the aircraft horizontal, the display changeover switch 73 that changes the content displayed on the monitor 65, and the reaping device 7 rises above a predetermined height with respect to the aircraft. The lift shut switch 74, the threshing clutch 41, and the cutting clutch for selecting the control for cutting the cutting clutch 42 and the threshing clutch 41. A power clutch indicator 75 for displaying the intermittent state of the hook 42, a power clutch switch 76 for intermittently connecting the threshing clutch 41 and the mowing clutch 42, a reel rotation dial 77 for setting the rotational speed of the take-up reel 17, and a reel lowering stop switching switch 78. And are provided.

  And operation and control of each part by command means, such as each switch provided in the control part 5, and a dial, are mainly performed by the control part (controller) which consists of microcomputers. Among these, the block diagram shown in FIG. 10 shows the input / output relationship with respect to the controller 79 related to the control of the take-up reel 17 related to the present invention. A lift sensor for detecting a swing position, a reel up / down switch 68, a reel back and forth switch 69, a trigger switch 67, a forced take-in switch 62, a presser foot switch 63, a reel rotation dial 77, and a reel that detects the number of rotations of the take-in reel 17 A rotation sensor 80, a vehicle speed sensor 81 for detecting the traveling speed of the general purpose combiner, a reel height detection sensor 82, a reel front / rear position detection sensor 83, a cutting portion height detection sensor 84 for detecting the height of the cutting device 7, and a reel lowering A stop changeover switch 78 is connected. The output side of the controller 79 is connected to a reel / cutting blade clutch motor 46, a reel transmission device 48, a reel lifting / lowering cylinder 29, a reel front / rear moving cylinder 28, and a cutting unit lifting / lowering cylinder 16.

  Next, the contents of control performed by the controller 79 will be described. First, the controller 79 is activated by turning on a key switch to initialize various sensors. Next, the controller 79 starts processing of the main routine shown in FIG. In the main routine, it is determined whether or not the reel is manually operated by the reel up / down switch 68 (reel up / down manual operation means) or the reel front / rear switch 69 (reel back and forth movement manual operation means) (S1), and the manual operation is performed. If so, a reel manual control subroutine is executed (S2) and the process returns to the start. When manual operation of the reel is not performed, subroutines such as automatic header lifting / lowering control (S3), reel rotation control (S4), forced take-up control (S5), and heel presser control (S6) are sequentially executed. Return to the start.

  Here, the reel manual control is performed in preference to the execution of the automatic header lift control, reel rotation control, etc. If the lift switch of the reel lift switch 68 is pressed, the reel lift cylinder 29 is extended. Then, the scraping reel 17 is lifted with respect to the reaping device 7, and if the lowering switch of the reel lifting / lowering switch 68 is pressed, the reel lifting / lowering cylinder 29 is contracted to move the scraping reel 17 to the reaping device. If the forward / reverse switch of the reel front / rear switch 69 is pressed, the hydraulic cylinder 28 for moving the front / rear of the reel is extended to move the take-up reel 17 forward relative to the reaping device 7. If the reversing switch of the reel front / rear switch 69 is pressed, the hydraulic cylinder 28 for moving the front / rear of the reel is contracted, and the take-up reel 17 It is moved rearward relative to the cutting device 7. When the reel manual control is performed, the front-rear position and the vertical position of the pick-up reel 17 with respect to the cutting device 7 are stored in the storage device each time. (In the present invention, the lowering switch of the reel raising / lowering switch 68 functions as command means for instructing the lowering of the take-up reel 17, and the backward switch of the reel front / rear switch 69 is an instruction means for instructing the rearward movement of the take-up reel 17. Function as.)

  The header automatic lifting control automates the lifting and lowering of the cutting device 7 at the beginning and end of cutting and the position adjustment of the take-up reel 17 by a simple operation. The multi-steering lever 64 is pressed while the trigger switch 67 is being pressed. This is executed when it is detected that the user has swung forward or backward. Specifically, when the raising command of the reaping device 7 is issued once by the backward swing operation of the multi-steer lever 64 based on the condition that the threshing clutch 41 is connected, the rake reel 17 is reaped. While lowering the device 7 to the lowest level, the lifting / lowering hydraulic cylinder 16 of the reaping device 7 is extended to raise the reaping device 7 to a predetermined position. Further, once the lowering command of the mowing device 7 is issued by the forward swing operation of the multi-steer lever 64, the lifting hydraulic cylinder 16 of the mowing device 7 is operated to reduce, and the mowing device 7 is moved to the mowing height setting dial 66. In addition to lowering to the height set in step 1, the scraping reel 17 is raised to the original height stored in the reel manual control. (In the present invention, swinging the multi-steering lever 64 backward while pressing (holding) the trigger switch 67 functions as command means for instructing the lowering of the take-up reel 17).

  Therefore, in the general-purpose combiner, when the body is turned to cut the crop in one stroke and to cut the next stroke, it is necessary to raise the reaping device 7 once so that the ripening device 7 does not collide with a reed or the like. However, in this case, as the cutting device 7 is lifted with the end of cutting, the scraping reel 17 descends to the bottom of the cutting device 7 at the same time, so the gap between the scraping reel 17 and the platform 12 is reduced. Further, it is possible to prevent spillage of cereals remaining in the platform 12, and this is an effective means in terms of suppressing head loss.

  Further, the reel rotation control controls the rotation speed of the take-up reel 17, and as shown in FIG. 12, the dial position of the reel rotation dial 77 is read (S1), and the dial position is determined. (S2). Here, if the dial position is not “OFF”, an automatic determination is made to turn on / off by pushing the reel rotation dial (S3). If automatic is selected, vehicle speed synchronized rotation control is executed (S4). ). If not automatic, constant rotation control is executed (S5). Furthermore, if the dial position is “OFF” in step S2, the reel rotation is stopped (S6). (In the present invention, the operation to the cutting position of the reel rotation dial 77 in the reel rotation control functions as command means for instructing the rotation stop of the take-in reel 17).

  The vehicle speed synchronized rotation control is based on the rotation speed set at the dial position of the reel rotation dial 77 as shown in the characteristic diagram showing the relationship between the vehicle speed and the reel rotation speed in FIG. Control that links the rotational speed of the take-in reel 17 with the vehicle speed detected by the above is performed. Specifically, when the vehicle speed increases, the rotation speed of the scraping reel 17 is increased according to the increase amount, while when the vehicle speed decreases, the rotation speed of the scraping reel 17 is increased according to the decrease amount. Decrease. When the vehicle speed is low, the rotation speed of the take-up reel 17 is constant so that the rotation speed does not decrease further. In controlling the rotation speed of the take-up reel 17, the rotation speed of the take-up reel 17 is read using the reel rotation sensor 80 together with the reel rotation dial 77 and the vehicle speed sensor 81, and is determined by vehicle speed synchronous rotation control. Feedback control is performed to operate the reel transmission 48 so as to achieve the rotated speed. Further, the constant rotation control is performed so that the rotation speed of the take-up reel 17 becomes equal to the rotation speed set at the dial position of the reel rotation dial 77. Further, the reel rotation stop is to stop the rotation of the take-up reel 17, and more specifically, the reel / cutting blade claw clutch 45 is cut by a reel / cutting blade clutch motor to drive the reel. The rotation of 17 is stopped.

  Therefore, in the vehicle speed synchronous rotation control in the reel rotation control, the rotation speed of the scraping reel 17 increases / decreases in accordance with the vehicle speed, and the reel rotation dial 77 arbitrarily increases / decreases the reel rotation speed according to the state of the crop. Because it can be adjusted to the optimum, it enables the optimal cutting work. Further, the cutting blade 14, the auger 13, and the feeder 10 are always driven at the maximum rotation even during low-speed cutting, so there is no concern about clogging, and the cutting is stabilized by the constant rotation of the take-up reel 17. In the constant rotation control, the reel rotation can be fixed at the dial position and the work can be performed. Therefore, there is an advantage that the harvesting adaptation range is increased together with the vehicle speed synchronous rotation control. Note that, under predetermined conditions described later, even if the reel rotation automatic switch is turned on, the reel rotation automatic control (vehicle speed synchronized rotation control) may not be performed.

On the other hand, if the reel rotation dial 77 is set to the “cut” position during crop cutting, the rotation of the take-up reel 17 can be easily stopped. This is particularly true when the instruction to lower the take-up reel 17 (to operate the lowering switch of the reel raising / lowering switch 68) is made manually in order to prevent spilling of the cereal from the platform 12 at the end of cutting. If the grains are not sufficiently swept, the grains 22 may be rolled up by the tines 22 of the rotating scraping reel 17, and the grains may be scattered on or around the reaping device 7. However, in such a case, if the reel rotation dial 77 is quickly set to the “cut” position and the rotation of the take-up reel 17 is stopped, the rolling of the cereal will not occur. Therefore, if the rotation of the take-up reel 17 is stopped, the subsequent recovery operation or removal operation of the cereal can be eliminated, and the head loss caused by the inability to recover can be suppressed.
For example, wheat and barley are lighter in weight than paddy rice and tend to be rolled up by the take-up reel 17. In addition, pigeons and millets have the same drought weight as paddy rice, but instead have high drought rigidity and do not fall over immediately like paddy rice when they are raked by the take-up reel 17, so that they stand upright. Therefore, it is bulky and the sweep from the platform 12 is poor, and the take-up reel 17 is likely to wind up. However, in these cuttings, if the reel rotation is stopped, the winding can be effectively prevented.

  Next, forced scratch control will be described. The forced take-up control is to suppress head loss especially at the four corners of the field. As shown in FIG. 14, the state of the forced take-up switch 62 is judged (S1), and when the forced take-up switch 62 is pressed and turned on, The forced scraping flag is set to ON and a release delay timer is set (S2). Next, the state of the forced scratching flag is determined (S3), and if the forced scratching flag is ON. It is determined whether the release delay timer is up (S4). If the release delay timer has not expired, the take-up reel 17 is moved to the lowest position and the take-up reel 17 is moved to the rearmost position (S5). Further, the state of the reel lowering / stopping changeover switch 78 is determined (S6), and if the reel lowering / stopping changeover switch 78 is turned on (ON), it is determined whether the take-up reel 17 has been lowered to a set height or less. (S7). When the height is higher than the set height, the rotation of the take-up reel 17 is switched from the vehicle speed synchronous rotation control or the constant rotation control in the reel rotation control that has been controlled until then to the highest speed rotation drive state (S8), or If it is lower than the set height, the rotation of the take-up reel 17 is stopped (S9).

  The switching to the highest speed rotation drive state is also executed when the reel lowering / falling stop switching switch 78 is turned off (OFF). Further, if the forced scratch flag is not set in steps S3 and S4, or if the release delay timer has expired, the forced scratch flag is reset to OFF and the release delay timer is reset ( S10). (In the present invention, the operation of the forced take-in switch 62 functions as command means for instructing to lower the take-up reel 17 and for instructing backward movement. It functions as a command means for performing

  Accordingly, in the forced take-up control, when the forced take-in switch 62 is pressed once and an entry operation is performed, the entry operation of the forced take-in switch 62 is released and a predetermined time (time-out time of the release delay timer) is set. Until the elapsed time, the scraping reel 17 descends to the lowest position and moves to the rearmost position. Further, the scraping reel 17 is rotated at the highest speed until the scraping reel 17 becomes equal to or lower than the set height.・ When cutting at the four corners of the farm where the reverse is repeated, the scraping reel 17 can be moved even when the machine is stopped or reverse, thereby forcibly pulling the cereal into the platform 12 to eliminate spillage and reduce head loss. Can do. Further, when the scraping reel 17 reaches a set height, for example, the lowest position, the rotation of the scraping reel 17 is stopped, and the scraping that rotates as in the case where the reel rotation dial 77 is set to the “OFF” position. The rolling of the cereal by the tines 22 of the reel 17 is prevented. Then, after the predetermined time has elapsed, the forced scraping control is canceled, and the scraping reel 17 also returns to the previous control. Therefore, when moving forward and resuming cutting, the position of the scraping reel 17 is manually moved. Further, there is no need to perform a rotation operation, and the cutting operation can be performed efficiently.

  Finally, the foot presser control will be described. The heel presser control is intended to prevent spillage from the platform 12 and rolling up of the cereals that occur particularly at the end of one-stroke cutting. As shown in FIG. 15, the heel presser switch 63 is pressed and the switch is turned on. When turned ON (S1), the take-up reel 17 is moved to the lowest position and to the rearmost position, and the rotation of the take-up reel 17 is stopped (S2). When the pressing operation of the heel presser switch 63 is released and the switch is turned OFF, the position and the rotational speed of the take-up reel 17 before the switch operation are returned (S3). (In the present invention, the pressing operation of the heel presser switch 63 functions as command means for instructing to lower the take-up reel 17, instructing backward movement, and instructing rotation stop of the take-up reel 17. )

  Accordingly, the heel presser control is executed only while the heel presser switch 63 is being pressed. When the heel presser switch 63 is pressed at the end of the one-stroke cutting, the take-up reel 17 is lowered and moved to the rearmost position. Thus, while the cereal is forcibly pulled into the platform 12 by the tines 22, the front side of the platform 12 is closed by the take-up reel 17, and the gap between the platform 12 and the take-up reel 17 is minimized. Then, since the rotation of the scraping reel 17 is stopped, the rolling of the rotating straw reel 17 by the tines 22 is prevented, and the recovery operation or the removal operation by the manual operation of the rolled straw is unnecessary. be able to. Further, the tine attachment rod 21 of the scraping reel 17 that has stopped rotating can be pushed downward to facilitate lateral feed by the platform auger 13, so that the corn straw in the platform 12 can be quickly swept away. It can be carried out.

  When the hand switch is released after the cutting is finished, and the multi-steer lever 64 is swung backward while pressing the trigger switch 67, the cutting device 7 is raised by the above-described automatic header lift control to turn the aircraft. If the multi-steer lever 64 is swung backward without pressing the trigger switch 67, the position of the take-in reel 17 before the presser foot control and the rotation speed are stopped. In the returned state, the cutting device 7 can be raised to turn the aircraft. Note that the heel presser control is different from the forced rake control in that it is stopped only immediately without rotating the scraping reel 17 at a high speed and only while the heel presser switch 63 is kept pressed. However, efficient cutting operations can be performed by properly controlling both of them according to the type of crop, the growing state, the state of sweeping cereals on the platform 12, and the like.

  The rotation stop control of the take-in reel 17 is incorporated during the forced take-up control and the heel presser control, and is executed in each control. However, this is incorporated into the reel rotation control described above. Thus, even when the take-up reel 17 is manually lowered or when the take-up reel 17 is lowered to the lowest in the header automatic control, the rotation of the take-up reel 17 is stopped. be able to. That is, as shown in FIG. 16, in the second embodiment of the reel rotation control, first, it is determined whether the reel lowering stop switching switch 78 is turned on and turned on (S1). It is determined whether the height of the take-up reel 17 is higher or lower than the set height (S2). If the height of the take-up reel 17 is at the lowest lowered position, for example, the reel rotation is stopped, and the rest Is configured to execute normal reel rotation control (FIG. 12: first embodiment). (In the present invention, the turning-on operation of the reel lowering stop switching switch 78 in the second embodiment of the reel rotation control functions as a command means for instructing the rotation stop of the take-up reel 17).

  Further, as described above, the tine 22 is attached to the tine mounting rod 21 of the take-up reel 17 in a hanging shape at predetermined intervals. And since the tine 22 acts gently on the grain by using a spring-type tine that is caused and has excellent performance, the head loss is reduced, and the load is appropriately released, so that damage is reduced and durability is improved. However, when the planted cereal is lying down in the direction of travel of the airframe and being cut away, there are cases where it is difficult to scratch with the normal tine 22. Therefore, in this case, as shown in FIG. 17, the auxiliary scraping plate 85 is rotatably attached to the distal end portion of the dog-shaped tine 22 by a pin 86 to increase the area of the crop scraping action portion. Thus, it is possible to improve the performance.

  Further, in the general-purpose combiner, as described above, a hydraulic cylinder is used as an actuator for raising and lowering the reaping device 7, raising and lowering the discharge auger 38 of the grain tank 6, or raising and lowering the take-up reel 17. When the reaping device 7 is automatically raised using the header automatic lifting control or the like, when the sensor 84 detects that the reaping device 7 has been raised to a preset height, the controller 79 detects the hydraulic cylinder. Control to return the switching valve to neutral is performed to stop the lifting and lowering of the cutting device 7. However, for example, when the multi-steer lever 64 is operated to raise the reaping device 7 manually, the switching valve is not returned to neutral until the manual operation is finished, in which case the hydraulic cylinder extends to the stroke end. Then, mechanical impact was given to the aircraft, and the impact was transmitted to the worker, giving unpleasant feeling. Further, the above-mentioned feeling of discomfort was the same when the discharge auger 38 of the above-described Glen tank 6 and the hydraulic cylinder of the take-up reel 17 were manually operated.

  Therefore, when the reaping device 7 is lifted or when the take-up reel 17 is manually lifted, the position of the stroke end of each hydraulic cylinder is set to a position where the hydraulic cylinder does not operate even though a lift command is issued. Is detected in advance by an analog sensor composed of a potentiometer or the like and stored, thereby performing control to return the switching valve to neutral before the hydraulic cylinder reaches the stroke end. In addition, a limit switch is provided at a position before the stroke end of the hydraulic cylinder of the discharge auger 38, and when the hydraulic cylinder is operated to the limit switch position by manual operation and the switch detects this, the control is made to return the switching valve to neutral. Incorporate the circuit. With this configuration, there is no discomfort due to the impact when each hydraulic cylinder is operated, and relief from the relief valve provided on the hydraulic circuit is avoided, so that the oil temperature rises or becomes uncomfortable. Generation of a relief sound can be prevented. Furthermore, by not giving an impact to the hydraulic cylinder and the support member of the hydraulic cylinder, it is possible to reduce the weight and cost of these members.

  Although the embodiment of the present invention has been described above, the actuator for adjusting the position of the take-up reel 17 in the vertical direction with respect to the reaping device 7 and the actuator for adjusting the position in the front-rear direction are replaced with the hydraulic cylinders 29 and 28 of the embodiment. It is possible to use an air cylinder, an electric motor or the like, and the claw clutch 45 is used as a clutch for intermittently transmitting power to the take-up reel 17, but as described above, instead of this, a hydraulic type is used. It is also possible to use a friction clutch or an electromagnetic clutch. Moreover, the claw clutch 45 intermittently interrupts the power transmission of the scraping reel 17 and the cutting blade 14 as a reel / cutting blade clutch, but the claw clutch 45 interrupts the power transmission only of the scraping reel 17. The power transmission path can be changed so that the cutting blade 14 is always driven together with the other feeder conveyors 15 and the platform auger 13, and in this case, the cutting blade 14 is always trimmed, so that the take-up reel It is not necessary to wait for the end of all cutting of the planted culm, and the operability is improved, and the present invention is not limited to the above embodiment, Various members and configurations can be modified.

DESCRIPTION OF SYMBOLS 1 Crawler type traveling device 3 Airframe frame 4 Threshing device 5 Steering part 6 Glen tank 7 Mowing device 10 Feeder 13 Platform auger 14 Cutting blade 17 Take-up reel 28 Hydraulic cylinder for moving the take-up reel back and forth (Actuator that adjusts the position in the longitudinal direction)
29 Hydraulic cylinder for raising and lowering the take-up reel (actuator for adjusting the position of the take-up reel with respect to the reaping device in the vertical direction)
45 Claw clutch 60 Traveling shift lever 62 Forced take-up switch 63 Presser foot switch 64 Multi-steering lever 67 Trigger switch 68 Reel lift switch 69 Reel forward / back switch 77 Reel rotation dial 78 Reel lowering stop switch

Claims (3)

  A general-purpose combine that provides a steering unit, a threshing device, and a glen tank on a machine body that includes a traveling device, and a cutting device that includes a scraping reel, a cutting blade, an auger, and a feeder in front of the aircraft body. An actuator for adjusting the position in the vertical direction with respect to the device and a clutch for intermittently transmitting power to the take-up reel are provided, and a command means for instructing the descent of the take-up reel and an instruction to stop rotation is provided in the control unit. A general-purpose combiner configured to lower the take-up reel by the command means and to stop the take-up reel from rotating regardless of the driving state of the auger and feeder.   A general-purpose combine that provides a steering unit, a threshing device, and a glen tank on a machine body that includes a traveling device, and a cutting device that includes a scraping reel, a cutting blade, an auger, and a feeder in front of the aircraft body. An actuator for adjusting the position in the vertical direction with respect to the device and a clutch for intermittently transmitting power to the take-up reel are provided, and a command means for instructing the descent of the take-up reel and an instruction to stop rotation is provided in the control unit. The rotation of the take-up reel can be stopped regardless of the driving state of the auger and feeder when the take-up reel is lowered below a set height by the command means. General purpose combine.   A general-purpose combine that provides a steering unit, a threshing device, and a glen tank on a machine body that includes a traveling device, and a cutting device that includes a scraping reel, a cutting blade, an auger, and a feeder in front of the aircraft body. An actuator that adjusts the position in the vertical direction with respect to the apparatus, an actuator that adjusts the position in the front-rear direction, and a clutch that intermittently transmits power to the take-up reel are provided, while the steering unit is instructed to lower the take-up reel, Command means for instructing movement and rotation stop is provided. The command means lowers and moves the take-up reel backward, and further stops the take-up reel rotation regardless of the driving state of the auger and feeder. General-purpose combine characterized by being configured to be able to be made.

Images