JP2009232819A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To aim at making the work of removing discharged straws between raking teeth and cutting teeth easy in the case that when a large amount of the discharged straws are conveyed to a cutter device driven by an electric motor or the conveying disturbance of the discharged straws takes place, these discharged straws may be clogged between the raking teeth and cutting teeth constituting the cutter device. <P>SOLUTION: This electrically driven cutter device 9 pivoted as setting a right and left one end side as a fulcrum and having a working posture A and an opened up posture B as freely opening and closing is provided by installing an operating switch 55 capable of reverse-operating a plurality of cutting teeth 9b and raking teeth 9a constituting the electrically driven cutter device 9, in the vicinity of the electrically driven cutter device 9. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a hybrid combine that includes an engine and an electric motor as a power source, and more particularly, to a combine that includes an electric cutter device that cuts waste discharged from a threshing unit via a waste transfer device. .

Conventionally, combine threshing devices and cutter devices are driven by the power directly transmitted from the engine via a belt transmission device, and when the threshing load of the combine increases, the rotational driving force of the cutter device decreases and the culling is reduced. Cutting defects and clogging may occur. In addition, even if the amount of cut processing of waste is small, unnecessary power is consumed, so that the cutter device can be driven at an optimum rotation speed according to the amount of waste without being affected by fluctuations in the threshing load. There is known a combine provided with a cutter device driven by an electric motor (see, for example, Patent Document 1).
JP 2008-5711 A (page 3, FIG. 1, FIG. 2)

  However, in Patent Document 1, when a large amount of waste is fed to the cutter device driven by the electric motor or when the waste is disturbed, the gap between the scraped teeth and the cutting teeth constituting the cutter device. However, there is room for improvement because it takes time to remove the waste clogged between the scraped teeth and the cutting teeth.

The present invention aims to solve the above-described problem, and includes a pretreatment unit that cuts cereals, a threshing unit that threshs cereals harvested by the pretreatment unit, and the threshing unit. A scouring and transporting device that transports the slaughter after threshing backward, and a sewage that is transported rearward by the scouring and transporting device is cut by a plurality of cutting teeth and scraping teeth that are rotated by an electric motor An electric cutter device, wherein the electric cutter device is pivotally connected to a working posture and an open posture with a left and right end side as a fulcrum, and the electric cutter device is disposed in the vicinity of the electric cutter device. The first feature is that an operation switch that can reversely operate the plurality of cutting teeth and the scavenging teeth that constitutes the above is provided.
The second feature is that the cutting teeth and the scraping teeth can be reversed at a lower speed or inching than the normal cutting speed.

According to the first aspect of the present invention, an operation switch is provided in the vicinity of the electric cutter device so that the plurality of cutting teeth and the scraping teeth constituting the electric cutter device can be operated in reverse. When clogging of the waste occurs between the plurality of cutting teeth and the scraping teeth, while checking the state of the waste clogging between the plurality of cutting teeth and the scraping teeth of the electric cutter device, The plurality of cutting teeth and the scraping teeth can be quickly reversed, and thereby the waste clogged between both teeth can be efficiently removed.
According to the second aspect of the present invention, it is possible to reverse the cutting teeth and the scraping teeth at a lower speed or inching than the speed at which the normal wiping is cut. It is possible to safely and efficiently remove waste clogged with water.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIGS. 1 to 3 are a left side view, a plan view, and a rear view with a part omitted of the combine, and FIG. 4 is a transmission diagram of the combine. The combine is a pair of left and right crawlers that are traveling parts. The vehicle has a traveling machine body 2 supported by the devices 1L and 1R. An engine 3 is mounted on the front right side of the traveling machine body 2, and an operation that constitutes a combine control unit 4 is disposed above the engine 3. Seat 5 is arranged.

  On the other hand, on the left side of the front part of the traveling machine body 2, a pre-processing unit 6 that cuts and conveys the cereal is laid up and down freely, and behind the pre-processing unit 6 threshing threshs the harvested culm. Unit 7, a waste transporting device 8 that transports the waste after threshing by the threshing unit 7 backward, and an electric cutter device 9 that cuts the waste transported through the waste transporting device 8. Are connected to the front and rear.

  Further, behind the driver's seat 5, there is provided a grain tank 11 for temporarily storing the grains selected by a sorting unit (not shown), and the grains temporarily stored in the grain tank 11. Can be discharged out of the machine from a discharge port 13a of a grain discharge auger 13 which can freely move up and down via a vertical conveying pipe 12.

  Then, on the front side of the boarding step 14 that forms the floor surface in front of the driver's seat 5, a control tower 16 having a multi-steering lever 15 that steers the traveling machine body 2 and raises and lowers the preprocessing unit 6 is erected. ing. The side panel 17 on the left side of the driver's seat 5 is provided with a plurality of operation levers necessary for the operation of the combine such as the main transmission lever 18 and a sub transmission lever (not shown).

  The threshing unit 7 described above includes a handling chamber (not shown) that includes a handling cylinder 21 that threshs the cereals harvested by the preprocessing unit 6, and the grains threshed in the handling chamber are placed below the handling chamber. A sorting section for sorting is provided, and the handling chamber and the sorting section are separated by a receiving network that leaks down the handled items. The sorting unit includes a tang fan 22, a swing sorter 23, a first spiral 24, a second spiral 25, a blower fan 26, and the like. And on the left side of the handling room, a threshing feed chain 28 is provided which holds the harvested cereal stocks between the culm rails 27 and conveys them backward.

  More specifically, the tang fan 22 is provided on the front side of the sorting section, and when the tang fan 22 is rotationally driven, a sorting wind is generated. The swing sorter 23 is driven to swing back and forth, and swings and sorts the grains and impurities that have leaked from the receiving net. The first helix 24 moves the first item sorted by the swing sorter 23 in the horizontal direction in the first item storage unit (not shown). It is taken over by the upper spiral 32 and conveyed into the grain tank 11. The second spiral 25 transfers the second thing including branch infarct grains, ear cut grains, etc., which were not accommodated as the first thing, in the lateral direction in a second thing accommodation portion (not shown). Then, the blower fan 26 blows the sub-selection air from below toward the swinging sorter 23 side between the first object storage part and the second object storage part.

  Next, transmission structures such as the threshing unit 7, the selection unit, the dust exhaust fan 33, and the electric cutter device 9 will be described. The power of the engine 3 includes a grain discharge spiral 35 provided at the bottom of the grain tank 11 from its output shaft 3a, a hydrostatic continuously variable transmission (traveling HST) 37 constituting a main transmission of the transmission 36, The work is transmitted to the Kara fan 22, the swinging sorter 23, the first helix 24, the second helix 25, the blower fan 26, and the like constituting the threshing unit 7 and the sorting unit via the work machine clutch 38, and the generator 41. Is input as power generation.

  The electric power generated by the generator 41 is charged to the hybrid battery 43 via a controller (control device) 42 having a charge / discharge controller, and is electrically driven to rotate by the electric power charged in the hybrid battery 43. Power is input from the motor 44 to the speed change case 45, and power is output to the preprocessing unit 6 and the threshing feed chain 28 via the speed change mechanism in the speed change case 45.

  Also, power is input to the above-described electric cutter device 9 and the waste diffusion spiral 46 provided below the electric cutter device 9 via an electric motor 47 that is rotationally driven by the electric power charged in the hybrid battery 43. ing.

  More specifically, the electric cutter device 9 is pivotally connected to a working posture A indicated by a solid line and an open posture B indicated by a two-dot chain line in FIG. is there. And the electric cutter apparatus 9 is equipped with the cutting axis | shaft 51 which arrange | positioned the several picking-tooth 9a with the predetermined space | interval, and the cutting shaft 52 which arrange | positioned the several cutting tooth 9b with the predetermined space | interval, back and forth. On the rotation fulcrum P side of the electric cutter device 9 described above, the power of the electric motor 47 is input through a bevel gear mechanism 54 configured at the shaft end of the cutting shaft 52.

  In addition, the electric cutter device 9 during the cutting operation is configured to operate in conjunction with the work machine clutch 38 that intermittently powers the threshing unit 7. 9a and cutting teeth 9b may be clogged with waste, and at that time, in order to remove the clogged waste, the work machine clutch 38 is turned off and power transmission to the threshing unit 7 is cut off. A forward / reverse selector switch 55 is provided that can reversely rotate only the electric cutter device 9 at low speed or incline. More specifically, as shown in FIGS. 1 to 3, the forward / reverse selector switch 55 is provided on the outer frame 9d on the open end side of the electric cutter device 9 that is pivotably opened and closed in a working posture A and an open posture B. It is attached and protrudes from a side cover 56 that covers the side of the electric cutter device 9.

  The controller 42 described above is a control device configured using a microcomputer (including a CPU, a ROM, a RAM, etc.). As shown in the block diagram of FIG. The generator 41, the work implement clutch sensor 61 for detecting the on / off state of the work implement clutch 38, the cutter load sensor 62 for detecting the rotational load of the electric cutter device 9 (electric motor 47), and the electric cutter device 9 at low speed. A forward / reverse changeover switch (momentary switch) 55 capable of forward / reverse rotation by inching is provided on the rotation fulcrum P side of the electric cutter device 9 for detecting whether the electric cutter device 9 is in the working posture A or the open posture B. A switching plate sensor for detecting the open / closed state of the switching plate 64 for switching whether or not to send the waste to the cutter opening sensor 63 and the electric cutter device 9. 65 are connected via a predetermined input interface circuit.

  On the other hand, on the output side of the controller 42, the control unit 4 is provided so that the rotational load of the electric motor 47 by the cutter load sensor 62 can be monitored by the hybrid battery 43, the electric motor 47 that is rotationally driven via the inverter 66. A horn 68 is connected via a predetermined output interface circuit between the monitor 67 and the scraping teeth 9a constituting the electric cutter device 9 and the cutting teeth 9b.

  FIG. 6 is a flowchart showing drive control of the electric cutter device 9 executed through the controller 42 described above, and will be described below based on this flowchart.

  First, in step S1, it is detected by the work implement clutch sensor 61 whether the work implement clutch 38 is in the disengaged state or in the engaged state. If the work implement clutch 38 is in the disengaged state, the process proceeds to step S2. Proceed to step S3.

  In step S2, power is transmitted to the threshing unit 7 and the sorting fan 23, the swing sorter 23, the first helix 24, the second helix 25, the blower fan 26, and the like constituting the threshing unit 7 and the sorting unit via the work machine clutch 38. At this time, the forward / reverse changeover switch 55 which can rotate the plurality of cutting teeth 9b and the scraping teeth 9a constituting the electric cutter device 9 at a low speed or in a forward / backward direction is operated at the reverse rotation position. If so, the process proceeds to step S4. In step S4, the plurality of cutting teeth 9b and the scraping teeth 9a are reversely driven at a low speed or incline. If the forward / reverse switching switch 55 is operated at the forward rotation position, the process proceeds to step S5, where the plurality of cutting teeth 9b and scraping teeth 9a are driven forward at low speed or inching. . If the forward / reverse switching switch 55 is not operated, the electric cutter device 9 is stopped as in step S6. That is, when clogging of the waste occurs between the plurality of cutting teeth 9b and the scraping teeth 9a constituting the electric cutter device 9, first, power transmission to the threshing unit 7 and the sorting unit is cut off, and then the electric cutter is cut. Since the plurality of cutting teeth 9b and the scraping teeth 9a of the electric cutter device 9 can be rapidly rotated in the desired direction through the forward / reverse switching switch 55 provided in the vicinity of the device 9, the electric cutter device 9 Thus, it is possible to efficiently perform the operation of removing the waste clogged between the plurality of cutting teeth 9b and the scraping teeth 9a. In addition, since the forward and reverse rotation of the plurality of cutting teeth 9b and the scraping teeth 9a of the electric cutter device 9 can be performed at low speed or inching, it is possible to safely remove the waste clogged between the teeth 9b and 9a. And can be removed efficiently.

  On the other hand, in step S3, the cutter opening sensor 63 detects whether the electric cutter device 9 is in the work posture A or the open posture B. If the electric cutter device 9 is in the closed work posture A, the process proceeds to step S7. If the electric cutter device 9 is in the open posture B with the open state, the process proceeds to step S8.

  In step S7, the switching plate 64 for switching whether or not to send the waste to the electric cutter device 9 is at the maintenance position a that is wide open upward as shown in FIG. It is detected by the switching plate sensor 65 whether the cutter position b is slightly open or the evacuation position c) where the switching plate 64 is closed. If the switching plate 64 is at the maintenance position a, the process proceeds to step S8. If it is outside the maintenance position a, the process proceeds to step S9.

  In step S8, the monitor 67 provided in the control unit 4 displays that the electric cutter device 9 is in the open posture B and the switching plate sensor 65 is in the maintenance position a that is largely open upward, and an alarm output from the horn 68 is output. The process proceeds to step S10. In step S10, an engine stop solenoid valve (not shown) is operated to stop the engine by fuel cut, and the process returns to step S1. In this case, the work implement clutch 38 may be disconnected without stopping the engine 3.

  On the other hand, in step S9, the electric cutter device 9 is rotated forward at a predetermined work speed, and the process proceeds to step S11.

  In step S11, the magnitude of the detected value of the rotational load by the cutter load sensor 62 that detects the rotational load of the electric cutter device 9 (electric motor 47) is determined. If the rotational load is small, the process returns to step S1 to increase the rotational load. If so, the process proceeds to step S12.

  In step S12, the monitor 67 provided in the control unit 4 displays that the rotational load of the electric cutter device 9 has increased, and an alarm is output by the horn 68, and the process proceeds to step S13.

  In step S13, it is determined whether or not the state in which the rotational load of the electric cutter device 9 (electric motor 47) detected by the cutter load sensor 62 is high continues for a predetermined time, and the electric cutter device 9 (electric motor 47). If the rotational load of the electric cutter device 9 (electric motor 47) is not high for a predetermined time, the process returns to step S1, and the rotational load of the electric cutter device 9 (electric motor 47) is large, that is, the plurality of cutting teeth 9b constituting the electric cutter device 9 are scraped. When significant exhaust clogging occurs between the toothed teeth 9a, the process proceeds to step S14, an engine stop solenoid valve (not shown) is operated to stop the engine by fuel cut, and the process proceeds to step S15. Then, a series of control such as stopping the electric motor 47 is executed.

  In the combine of the present invention, when the rotational load of the engine 3 is large during the cutting operation, the power generation by the generator 41 is stopped, and the electric cutter device 9 (electric motor) is used by using the electric power stored in the hybrid battery 43. On the other hand, when the rotational load of the engine 3 is small, the electric power generated by the generator 41 is supplied to the electric cutter device 9 via the hybrid battery 43 or not via the hybrid battery 43. The hybrid effect is efficiently obtained by supplying the electric cutter device 9 directly to the motor.

  According to the transmission structure and the drive control of the plurality of cutting teeth 9b and the scraping teeth 9a constituting the electric cutter device 9 described above, when the waste is clogged between both the teeth 9b and 9a, the electric cutter The forward / reverse switching switch 55 provided on the outer frame 9d on the open end side of the electric cutter device 9 is operated by the forward / reverse selector switch 55 while the device 9 is in the open posture and the state of the waste clogged between both teeth 9b, 9a is confirmed. Since the teeth 9b and 9a can be quickly forward / reversely rotated in a desired direction, it is possible to efficiently perform the operation of removing the waste clogged between the teeth 9b and 9a. And, by configuring the plurality of cutting teeth 9b and the scraping teeth 9a constituting the electric cutter device 9 so as to be able to perform forward / reverse at a low speed or inching, it is possible to safely and effectively eliminate the waste trapped in the electric cutter device 9 It can be removed efficiently.

The side view of a combine. The top view of a combine. The rear view of the combine which omitted a part. Combined transmission diagram. The block diagram of a controller (control apparatus). The flowchart which shows the drive control of an electric cutter apparatus.

Explanation of symbols

6 Pre-Processing Unit 7 Threshing Unit 8 Exclusion Conveying Device 9 Electric Cutter Device 9a Cutting Teeth 9b Scratching Teeth 47 Electric Motor 55 Operation Switch A Working Posture B Open Posture

Claims (2)

  A pre-processing unit (6) for harvesting cereals, a threshing unit (7) for threshing the cereals harvested by the pre-processing unit (6), and scouring after being threshed by the threshing unit (7) And a plurality of cutting teeth (9b) that are driven to rotate by an electric motor (47), the waste transporting device (8) for transporting the waste back and the waste transported rear by the waste transporting device (8). And an electric cutter device (9) that performs cutting with a toothed tooth (9a). The electric cutter device (9) can be freely opened and closed in a working posture (A) and an open posture (B) with the left and right ends as fulcrums. In the combine which is pivotally arranged, an operation switch which can reversely operate the plurality of cutting teeth (9b) and the scraping teeth (9a) constituting the electric cutter device (9) in the vicinity of the electric cutter device (9). The combine characterized by providing (55).   The combine of Claim 1 comprised so that reversal of the said cutting tooth (9b) and a pick-up tooth | gear (9a) could be performed at a low speed or incline rather than the speed | rate which cut | disconnects a normal waste.

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