WO2017188402A1 - Combine - Google Patents

Combine Download PDF

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Publication number
WO2017188402A1
WO2017188402A1 PCT/JP2017/016831 JP2017016831W WO2017188402A1 WO 2017188402 A1 WO2017188402 A1 WO 2017188402A1 JP 2017016831 W JP2017016831 W JP 2017016831W WO 2017188402 A1 WO2017188402 A1 WO 2017188402A1
Authority
WO
WIPO (PCT)
Prior art keywords
feed chain
shaft
transmission
switch
combine
Prior art date
Application number
PCT/JP2017/016831
Other languages
French (fr)
Japanese (ja)
Inventor
一史 渡邊
正文 山口
文嬌 関
Original Assignee
ヤンマー株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ヤンマー株式会社 filed Critical ヤンマー株式会社
Priority to KR1020187025846A priority Critical patent/KR102195177B1/en
Priority to KR1020207036345A priority patent/KR102345376B1/en
Priority to CN201780021943.4A priority patent/CN109688797B/en
Publication of WO2017188402A1 publication Critical patent/WO2017188402A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
    • A01D41/02—Self-propelled combines
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F12/00—Parts or details of threshing apparatus
    • A01F12/10—Feeders

Definitions

  • the present invention relates to a combine, and more particularly to a technique for driving a stopped feed chain.
  • the hand switch is disposed in two places near the driver's seat (on the side column) and near the feed chain, and the on / off operation of the hand switch and the operation position of the main speed change lever are associated with each other.
  • the structure which controls to drive / stop is disclosed. Specifically, when the hand switch is turned on, the feed chain is driven regardless of the operation position of the main gear shift lever, and when the hand switch is turned off, the main gear shift lever is operated neutral or reverse. Stop the feed chain drive. With this configuration, it is possible to perform a handling operation without operating the mowing clutch lever.
  • Patent Document 1 The technology described in Patent Document 1 is intended only to improve convenience when performing a handling operation. That is, when performing the mowing / threshing operation, the mowing clutch and the threshing clutch are turned on, and the hand switch is turned off. In order to drive the feed chain, for example, during turning by operating the main transmission lever, an operation to turn on the hand switch is required. It is described that the handling switch on the driver's seat side is arranged on the side column provided with the main transmission lever. That is, in order to operate the hand switch, it is necessary to release the hand from the main transmission lever.
  • An operating means for driving the threshing part is provided in the control part, and the threshing device and the feed chain of the threshing part are allowed to be driven on the condition that the operation operation of the operating means and the body are in a running state.
  • an auxiliary operation means for driving the feed chain is provided in an operation tool provided in the control unit, and the stop is performed by entering and operating the auxiliary operation means. Drive the feed chain.
  • the auxiliary operating means is provided on the main transmission lever.
  • the feed chain drive speed by the auxiliary operation means was synchronized with the vehicle speed of the aircraft.
  • Combine side view The figure which shows the power transmission mechanism of a combine Diagram showing combine control structure
  • the figure which shows the structure of the cereal guide Diagram showing handling procedure The figure which shows the structure which provided the auxiliary operation switch in the main transmission lever Control matrix showing operating conditions of auxiliary operating means Control matrix showing operating conditions of mowing quick pedal Control matrix showing operating conditions of lubrication switch
  • Combine side view A) The top view which shows the structure which provided the corn straw guide operation lever
  • Perspective view showing feed chain transmission mechanism
  • the figure which shows the structure of the cereal guide Diagram showing handling procedure The figure which shows the rotation angle of the cereal guide
  • FIG. 1 shows a side view of the combine.
  • the combine 1 includes a traveling unit 2, a reaping unit 3, a threshing unit 4, a sorting unit 5, a storage unit 6, a waste processing unit 7, a power unit 8, and a control unit 9.
  • the combine 1 travels by the traveling unit 2 and threshs the cereals harvested by the harvesting unit 3 by the threshing unit 4, sorts the grains by the sorting unit 5, and stores them in the storage unit 6. Further, the waste after threshing is processed by the waste processing unit 7.
  • the power unit 8 supplies power to the traveling unit 2, the mowing unit 3, the threshing unit 4, the sorting unit 5, the storage unit 6, and the waste disposal processing unit 7. Then, the combine 1 is operated by the control unit 9.
  • the traveling unit 2 is provided below the body frame 20.
  • the traveling unit 2 includes a transmission 21 and a pair of left and right traveling devices (hereinafter referred to as “crawler type traveling devices”) 22 and 22.
  • the transmission 21 transmits the power of the engine 81 of the power unit 8 (hereinafter referred to as “rotational power”) to the crawler type traveling devices 22 and 22.
  • the crawler type traveling devices 22 and 22 cause the combine 1 to travel in the front-rear direction. Further, the crawler traveling devices 22 and 22 turn the combine 1 in the left-right direction.
  • the cutting unit 3 is provided in front of the traveling unit 2.
  • the cutting unit 3 includes a divider 31, a pulling device 32, a cutting device 33, and a transport device 34.
  • the divider 31 guides the grain culm to the pulling device 32.
  • the pulling device 32 causes the culm guided by the divider 31.
  • the cutting device 33 cuts the culm caused by the pulling device 32.
  • the conveying device 34 conveys the cereals cut by the cutting device 33 to the threshing unit 4.
  • the threshing unit 4 is provided behind the cutting unit 3.
  • the threshing unit 4 includes a feed chain 41 and a handling drum 42.
  • the feed chain 41 inherits the grain candy from the conveying device 34 and conveys it to the waste disposal processing unit 7.
  • the handling cylinder 42 threshs the cereals that are conveyed by the feed chain 41.
  • the sorting unit 5 is provided below the threshing unit 4.
  • the sorting unit 5 includes a swing sorting device 51, a wind sorting device 52, a grain transport device 53, and a sawdust discharging device 54.
  • the swing sorting device 51 sorts the threshing that has fallen from the threshing unit 4 into grains and sawdust.
  • the wind sorting device 52 further sorts the cereals sorted by the swing sorting device 51 into grains and swarf.
  • the grain conveying device 53 conveys the grain selected by the swing sorting device 51 and the wind sorting device 52 to the storage unit 6.
  • the swarf discharging device 54 discharges the swarf and the like sorted by the swing sorting device 51 and the wind sorting device 52.
  • the storage unit 6 is provided on the right side of the threshing unit 4.
  • the storage unit 6 includes a Glen tank 61 and a discharge device 62.
  • the Glen tank 61 stores the grains that have been conveyed from the sorting unit 5.
  • the discharge device 62 can discharge the grains stored in the Glen tank 61 to an arbitrary place.
  • the waste disposal unit 7 is provided behind the threshing unit 4.
  • the waste disposal unit 7 includes a waste transporting device 71 and a waste cutting device 72.
  • the waste transporting device 71 inherits the rice cake from the feed chain 41 and transports it to the waste cutting device 72.
  • the waste cutting device 72 cuts and discharges the cereals conveyed by the waste conveying device 71.
  • the power unit 8 is provided on the right side of the sorting unit 5.
  • the power unit 8 includes an engine 81 and a counter case 82.
  • the engine 81 generates rotational power.
  • the counter case 82 transmits the rotational power of the engine 81 to the cutting unit 3, the threshing unit 4, and the sorting unit 5.
  • the control unit 9 is provided above the power unit 8.
  • the control unit 9 includes a driver's seat 91 and a plurality of operating tools such as a handle 92, a main transmission lever 93, a work clutch lever 94, a cutting quick pedal 95, and an oiling switch 96.
  • the driver's seat 91 is a seat where an operator sits.
  • the handle 92 is a steering handle that changes the traveling direction of the combine 1.
  • the main transmission lever 93 switches the traveling direction of the combine 1 by switching the three positions of “forward”, “neutral”, and “reverse”, and also adjusts the traveling speed of the combine 1 by the amount of tilt in the forward direction and the backward direction. change.
  • the work clutch lever 94 is an operation means for switching between driving / stopping of the cutting unit 3 and the threshing unit 4 and includes three types of “cutting / threshing”, “cutting / threshing”, and “cutting / threshing”. Have a position.
  • the reaping quick pedal 95 is an operating tool that drives the reaping part 3 and the threshing part 4 when operated when the work clutch lever 94 is operated to “entering reaping / threshing”.
  • the driving time by the mowing quick pedal 95 is provided with a time limit (a time required for a series of operations from mowing to threshing, for example, 5 seconds).
  • the oiling switch 96 is a switch that is operated when oiling the reaping part 3 and the threshing part 4, and is an operation for driving the reaping part 3 and the threshing part 4 in a state where the rotational speed of the engine 81 is set to a low speed (low idle rotation). It is a tool.
  • the operator operates the combine 1 by appropriately operating each operation tool. With such a configuration, the operator can steer the combine 1 while sitting on the driver's seat 91.
  • FIG. 2 shows the structure of the power transmission mechanism of the combine 1.
  • the rotational power of the engine 81 input to the counter case 82 via the continuously variable transmission 111 is designated, the rotational power of the continuously variable transmission 111 is assumed.
  • the power transmission mechanism of the combine 1 is mainly composed of a transmission 21, a counter case 82, a rotating shaft, a belt, and the like that transmit the rotational power of the engine 81 to other parts.
  • the transmission 21 transmits the rotational power of the engine 81 to the crawler type traveling devices 22 and 22.
  • the rotational power of the engine 81 is input to the transmission 21 via the belt b1.
  • the transmission 21 includes a hydraulic-mechanical continuously variable transmission (HMT) 111 as a transmission.
  • the continuously variable transmission 111 converts the rotational power of the engine 81 into hydraulic pressure, and then converts it into rotational power again to drive the crawler type traveling devices 22 and 22.
  • the transmission 21 can change the driving state of the crawler type traveling devices 22 and 22 and can cause the combine 1 to travel in an arbitrary direction.
  • the counter case 82 transmits the rotational power of the engine 81 to the cutting unit 3, the threshing unit 3, and the sorting unit 4.
  • the rotational power of the engine 81 is input to the counter case 82 via the belts b2 and b3. Further, the rotational power of the continuously variable transmission 111 is input to the counter case 82 via the belts b4 and b5.
  • the counter case 82 combines the rotational power of the engine 81 and the continuously variable transmission 111 by using a planetary gear mechanism, and drives the feed chain 41. Further, the counter case 82 transmits the rotational power of the continuously variable transmission 111 to the cutting unit 3. Thereby, the counter case 82 can synchronize (vehicle speed synchronization) the conveyance speed by the feed chain 41 and the cutting speed by the cutting unit 3 with the traveling speed of the combine 1.
  • a clutch mechanism 83 that can transmit or block the rotational power of the engine 81 to the feed chain 41 is provided. More specifically, there is provided a clutch mechanism 83 that can transmit or shut off the power obtained by combining the rotational power of the engine 81 and the continuously variable transmission 111 to the feed chain 41.
  • the clutch mechanism 83 is connected to a control device 84 that can transmit a control signal to the clutch mechanism 83.
  • the control device 84 is connected to the first switch Sw ⁇ b> 1 and the second switch Sw ⁇ b> 2 that can transmit an input signal to the control device 84.
  • the first switch Sw ⁇ b> 1 and the second switch Sw ⁇ b> 2 can instruct the operation state of the clutch mechanism 83 to the control device 84.
  • the control device 84 can change the connection / disconnection of the clutch mechanism 83.
  • the control device 84 can transmit a control signal to the cutting clutch mechanism 89 that changes transmission or interruption of power to the cutting unit 3, and can control connection / disconnection of the cutting clutch mechanism 89.
  • the control device 84 is connected to a vehicle speed sensor 85 that detects the traveling speed of the combine 1, and the vehicle speed sensor 85 grasps the driving state of the aircraft.
  • the control device 84 is connected to a first sensor 86 for detecting the operation position of the main transmission lever 93 and a second sensor 87 for detecting the operation position of the work clutch lever 94. Further, the control device 84 is connected to a third sensor 88 that detects the operation of the cutting quick pedal 95 and an oiling switch 96. In this way, the control device 84 grasps the traveling state of the combine 1, the operation position of the main transmission lever 93, the operation position of the work clutch lever 94, the operation of the cutting quick pedal 95, and the on / off operation of the lubrication switch 96. ing.
  • the control device 84 in the combine 1 of the present embodiment sets the clutch mechanism 83 in the engaged state on the condition that the work clutch lever 94 is operated to the threshing-in position and the combine 1 is in the running state.
  • the clutch mechanism 83 is disengaged and the drive of the feed chain 41 is stopped.
  • the clutch mechanism 83 is brought into the connected state and the feed chain 41 is driven.
  • the combine 1 includes a cereal guide 100 on the left side.
  • the culm guide 100 is for aligning the culm and guiding it to the feed chain 41.
  • the cereal guide 100 includes a main body 101, a guide 102, and an operation lever 103.
  • the main body 101 has a rear end attached to the airframe via a rotation shaft 104 and is rotatable between a state close to the feed chain 41 around the rotation shaft 104 and a state separated from the feed chain 41. Configured.
  • An operation lever 103 is attached to the front end of the main body 101. The operator can easily rotate the culm guide 100 with the operation lever 103.
  • a rotation plate 105 is formed behind the rotation shaft 104 of the main body 101. That is, the rotation plate 105 is rotated symmetrically with the rotation of the main body 101 as the main body 101 is rotated.
  • the first switch Sw ⁇ b> 1 is arranged behind the grain guide 100 and at a position where the main body 101 can be brought into contact with the rotating plate 105 in a state where the main body 101 is brought close to the feed chain 41.
  • the operator turns the grain guide 100 to bring the main body 101 close to the feed chain 41 to turn on the first switch Sw1, turns the grain guide 100 to turn the main body 101 to the feed chain 41.
  • the first switch Sw ⁇ b> 1 can be turned off by switching away from the first switch Sw ⁇ b> 1.
  • the second switch Sw2 is disposed in front of the grain guide 100.
  • the second switch Sw2 is turned on and off by the operator's pressing operation.
  • the second switch Sw2 is always turned off and is turned on only while the operator is pressing.
  • the handling operation is performed in a state where the combine 1 is stopped, that is, in a state where the crawler type traveling devices 22 and 22 are stopped and the feed chain 41 is stopped.
  • the worker rotates the grain straw guide 100 upward to separate the main body 101 from the feed chain 41.
  • the first switch Sw1 is operated to be turned off.
  • the feed chain 41 continues to be stopped.
  • the worker places the harvested corn G in a predetermined place.
  • the predetermined place is a space in which the culm G can be pressed against the feed chain 41 by the guide unit 102 when the culm guide 100 is rotated downward.
  • the worker rotates the culm guide 100 downward to bring the main body 101 close to the feed chain 41.
  • the first switch Sw1 is switched to the on state.
  • the control device 84 maintains the disengagement of the clutch mechanism 83 because the second switch Sw2 is in the disengaged state.
  • the control device 84 receives the fact that the first switch Sw1 and the second switch Sw2 are in the same state, switches the clutch mechanism 83 to the connected state, and transmits the rotational power of the engine 81 to the feed chain 41. .
  • the operator holds the operation lever 103 of the cereal guide 100 with one hand and operates the second switch Sw2 with the other hand. That is, the safety of the handling operation of the combine 1 is improved by preventing the handling operation from being performed unless both hands of the worker are closed and the safety is ensured.
  • an auxiliary operation switch Sw3 as an auxiliary operation means for forcibly driving the feed chain 41 is connected to the control device 84.
  • the control device 84 transmits a control signal to the clutch mechanism 83 and the cutting clutch mechanism 89 to control the connection / disconnection thereof.
  • the auxiliary operation switch Sw ⁇ b> 3 is provided on the main transmission lever 93 and is disposed at a position where the auxiliary operation switch Sw ⁇ b> 3 can be operated while operating the main transmission lever 93. That is, by arranging the auxiliary operation switch Sw3 on the operation tool provided in the control unit 9, the auxiliary operation switch Sw3 can be operated while the operation tool is operated, and the operability is improved.
  • the auxiliary operation switch Sw3 confirms that cereal clogging has occurred at the entrance of the threshing section 4 in a state where the feed chain 41 is stopped
  • the auxiliary operation switch Sw3 This is a means for solving a temporary problem by forcibly driving the feed chain 41 by operating when it is confirmed that clogging is occurring.
  • the combine 1 according to the present embodiment is arranged in addition to the first switch Sw1 and the second switch Sw2 that drive the feed chain 41 during the handling operation, in addition to the handling operation.
  • a third auxiliary operation switch Sw3 for forcibly driving the feed chain 41 when the feed chain 41 needs to be driven is disposed on the main transmission lever 93 as an operation tool.
  • the work clutch lever 94 is operated to “cutting and threshing”.
  • the feed chain 41 is operated for a predetermined time limit (a time required for a series of operations from mowing to threshing, for example, 5 seconds).
  • the mowing unit 3 is not activated because the transmission of power is cut off by the operation of the work clutch lever 94.
  • safety can be improved by providing a limit to the drive time of the feed chain 41.
  • This time limit sets the maximum value for continuous driving, and the feed chain 41 may be operated only while the auxiliary operation switch Sw3 is being pressed (within the time limit).
  • the feed chain 41 and the cutting unit 3 are It is operated for a predetermined time limit (the time required for a series of operations from mowing to threshing, for example, 5 seconds).
  • the driving speed of the feed chain 41 and the cutting unit 3 at this time is set to a speed corresponding to the amount of tilting of the main transmission lever 93. That is, the counter case 82 is operated in a state in which the vehicle speed is synchronized. Even in this case, safety can be improved by limiting the drive time of the feed chain 41 and the cutting unit 3.
  • the operating condition is that the auxiliary transmission lever provided in the control unit 9 is operated to “neutral”. Further, when the main transmission lever 93 is “neutral” or “reverse”, even when the operation position of the working clutch lever 94 is “cutting / threshing”, the cutting unit 3 is stopped and only the feed chain 41 is limited. Operated for hours only.
  • the work clutch lever 94 is operated to “cutting / threshing”.
  • the feed chain 41 and the cutting unit 3 are operated for a predetermined time limit (a time required for a series of operations from cutting to threshing, for example, 5 seconds).
  • the driving speed of the feed chain 41 and the cutting unit 3 at this time is set to a speed corresponding to the amount of tilting of the main transmission lever 93. That is, the counter case 82 is operated in a state in which the vehicle speed is synchronized. Even in this case, safety can be improved by limiting the drive time of the feed chain 41 and the cutting unit 3.
  • the main transmission lever 93 is operated to “forward”, the work clutch lever 94 is operated to “cutting and threshing”, the auxiliary transmission lever provided in the control unit 9 is operated to “neutral”, and
  • the lubrication switch 96 is turned on and operated in a situation where the rotational speed of the engine 81 is set to low idle by an operating tool such as an accelerator dial provided in the control unit 9, the feed chain 41 and the cutting unit 3 are operated at low speed ( The engine 81 is operated at a speed corresponding to the rotational speed of the engine 81.
  • the lubrication switch 96 is operated to perform the lubrication work, it is set so as not to shift to the lubrication mode unless the above conditions are satisfied.
  • the time limit in this case is not provided from the characteristic of the low speed drive and the lubrication work.
  • safety and workability can be improved by making the operating condition of the lubrication switch 96 that the rotational speed of the engine 81 is low idle. .
  • the rotational speed of the engine 81 when performing the lubrication work to low idle, if the rotational speed of the engine 81 is large, a problem that the oil is scattered during the lubrication work, the engine 81 is stopped. This eliminates the problem that the lubrication work is wasted.
  • the auxiliary operation switch Sw3 is provided on the main transmission lever 93
  • the mowing quick pedal 95 can also have the function.
  • the feed chain 41 has a predetermined time limit. (It is the time required for a series of operations from mowing to threshing, for example, 5 seconds).
  • the other operation tool of the control unit 9 can have the function of the auxiliary operation switch Sw3.
  • FIG. 10 shows a side view of the combine.
  • the difference between the combine which concerns on this embodiment and the combine 1 which concerns on the above-mentioned embodiment is a point provided with the grain guide 400. Since other configurations are substantially the same, they will be omitted as appropriate in the following description.
  • the culm guide operating lever 97 is an operation tool that switches between a state close to the feed chain 41 and a state separated from the feed chain 41 around the rotation axis 404 of the culm guide 400. It is.
  • the cereal guide operating lever 97 is provided in the vicinity of the driver's seat 91. Thereby, the operator can operate the culm guide operation lever 97 while sitting on the driver's seat 91.
  • the grain straw guide operating lever 97 is movably disposed in the operating lever guide groove 97a.
  • the operation lever guide groove 97a has a first position for holding the culm guide 400 in a state of being close to the feed chain 41 and a second position for holding the culm guide 400 in a state of being separated from the feed chain 41. ing.
  • FIG. 12 shows the configuration of the power transmission mechanism of the combine 1. Power from the engine 81 is transmitted to the transmission 21 of the traveling unit 2, and power is transmitted from the transmission 21 to the traveling unit output pulley 141. Power is transmitted from the traveling unit output pulley 141 to the cutting unit first input pulley 142. A belt is wound around the traveling unit output pulley 141 and the cutting unit first input pulley 142.
  • the tension clutch 145 is in a disengaged state, and power is transmitted from the traveling unit output pulley 141 to the cutting unit first input pulley 142. Further, when only the pouring operation of the cereal is performed when the traveling unit 2 is in the stopped state, the threshing unit 4 is driven. 143 to the reaper second input pulley 144.
  • the reaping portion first input pulley 142 and the reaping portion second input pulley 144 are fixed to one end of the reaping first shaft 147 constituting the reaping input shaft.
  • first cutting shaft 147 is arranged so that the axial direction is the left-right direction with respect to the traveling direction.
  • Two bevel gears are fixed in the middle of the cutting first shaft 147, and the power is transmitted to the upper conveying shaft 148 via one bevel gear.
  • the upper transport shaft 148 is a shaft for transmitting power to the upper transport device 132.
  • power is transmitted to the second cutting shaft 151 via the other bevel gear.
  • an auxiliary conveyance driving case 210 of the auxiliary conveyance device 113 is fixed to the other end of the cutting first shaft 147.
  • a bevel gear is fixed in the middle of the cutting second shaft 151, and power is transmitted to the lower transport shaft 153 and the vertical transport shaft 155 via the bevel gear.
  • the lower conveyance shaft 153 and the vertical conveyance shaft 155 are axes for transmitting power to the lower conveyance device 130 and the vertical conveyance device 134, respectively.
  • a bevel gear is fixed to the other end of the second cutting shaft 151, and power is transmitted to the third cutting shaft 158 via the bevel gear.
  • a bevel gear is fixed to the other end of the third cutting shaft 158, and power is transmitted to the cutting blade drive shaft 159 via the bevel gear.
  • the cutting blade drive shaft 159 is a shaft for transmitting power to the cutting blade 127 constituting the cutting device 33.
  • a bevel gear is fixed in the middle of the third cutting shaft 158, and power is transmitted to the fourth cutting shaft 162 through the bevel gear.
  • a bevel gear is fixedly provided in the middle of the cutting fourth shaft 162, and power is further transmitted to the transport shaft 164 via the bevel gear and the power transmission shaft 163.
  • the conveyance shaft 164 is a shaft for transmitting power to the star wheel 125, the belt 126 with protrusions, the lower conveyance device 130, and the upper conveyance device 132.
  • Two gears are fixed to the other end of the fourth cutting shaft 162, and power is transmitted to the fifth cutting shaft 171 via the gear.
  • a bevel gear is fixed to the other end of the fifth cutting shaft 171, and power is transmitted to the sixth cutting shaft 172 via the bevel gear. Then, the chain of the plurality of pulling devices 32 shown in FIG. 12 is driven from the sixth cutting shaft 172 through the pulling shaft 173 to drive the pulling tine 124.
  • Power is transmitted from the output pulley 181 provided in the engine 81 to the input pulley 182 of the power transmission case 185.
  • a belt is wound between the output pulley 181 and the input pulley 182.
  • the input pulley 182 is fixed to one end of the power transmission first shaft 183.
  • the other end side of the power transmission first shaft 183 is housed in a power transmission case 185.
  • a transmission device 186 for the threshing part is accommodated.
  • the power transmission case 185 is disposed in front of the threshing unit 4. Further, the side end portion of the power transmission case 185 is arranged so as to be inside the machine body with respect to the feed chain 41. By comprising in this way, it can fit in the body width.
  • the threshing portion transmission device 186 transmits power to the threshing portion 4 and includes a power transmission second shaft 195 and a threshing portion output shaft 191. That is, power can be transmitted to the feed chain 41 without increasing the lateral width.
  • the feed chain transmission device 187 includes a feed chain transmission case 201, a transmission input shaft 196 that penetrates the feed chain transmission case 201, and a feed chain transmission provided on the outer side of the body of the feed chain transmission case 201.
  • a belt-type continuously variable transmission 208 that is a mechanism and a transmission output shaft 260 that outputs power output from the belt-type continuously variable transmission 208 are provided.
  • a gear is provided at the other end of the power transmission first shaft 183, and power is transmitted to the power transmission second shaft 195 provided with a gear at one end via the gear.
  • a bevel gear is fixed in the middle of the power transmission second shaft 195, and power is transmitted to the threshing portion output shaft 191 through the bevel gear.
  • the threshing portion output shaft 191 is a shaft for transmitting power to a handling cylinder and a waste treatment apparatus (not shown).
  • a gear is provided at the other end of the power transmission second shaft 195, and power is transmitted to the transmission input shaft 196 via the gear.
  • the other end of the transmission input shaft 196 is provided with an input pulley 220 of a belt type continuously variable transmission 208 as a feed chain transmission mechanism.
  • the input pulley 220 transmits power to the output pulley 250 via the belt 290.
  • the output pulley 250 outputs power to the speed change output shaft 260.
  • a power transmission sprocket 197A is provided at the end of the speed change output shaft 260, and the power is transmitted via the power transmission sprocket 197A to the power transmission sprocket 197B fitted to the speed change input shaft 196 so as to be relatively rotatable. Is transmitted.
  • a gear is provided at the other end of the power transmission sprocket 197B, and the gear transmits power to the feed chain output shaft 199 via a power transmission mechanism 198 composed of a plurality of gears.
  • the power transmission sprockets 197A and 197B and the power transmission mechanism 198 are housed in a feed chain transmission case 201.
  • the power transmission mechanism 198 is provided with a feed chain stop mechanism 193.
  • the feed chain stop mechanism 193 is a mechanism for switching on / off of power transmission to the feed chain 41.
  • the feed chain stop mechanism 193 is constituted by a clutch mechanism.
  • the power transmission mechanism 198 has a switching shaft 202, and a clutch is fixed to the switching shaft 202 so as to be slidable in the axial direction.
  • a hydraulic actuator 204 which is a drive mechanism, is connected to the switching shaft 202 via a link mechanism 203.
  • the hydraulic actuator 204 moves the link mechanism 203 by expanding and contracting.
  • a switching valve 206 is provided in the oil passage of the hydraulic actuator 204.
  • the switching valve 206 is constituted by a two-position four-port solenoid valve.
  • the hydraulic actuator 204 extends when the solenoid is excited, and shortens when the solenoid is not excited. By extending the hydraulic actuator 204 in this way, the clutch is disengaged from the gear. Further, by shortening the hydraulic actuator 204, the link mechanism 203 is moved to connect the clutch to the gear so as not to rotate relative to the engaged state.
  • the link mechanism 203 is provided outside the transmission case 201 for the feed chain. More specifically, a clutch case for accommodating the switching shaft 202 and the clutch body is provided inside the feed chain transmission case 201 (engine side).
  • the link mechanism 203 has a link arm, and one end of the link arm is connected to a clutch sliding device.
  • the clutch sliding device has a pin. By sliding the pin, the clutch inside the feed chain transmission case 201 is turned on and off.
  • the switching valve 206 is connected to the control device 84, and when the pulse signal is received from the control device 84, the switching valve 206 is controlled by causing the pulse signal to flow through the solenoid.
  • the switching valve 206 is switched by exciting the solenoid.
  • the control device 84 is also connected to the engine 81. For example, when the power of the control device 84 is shut off, the drive of the engine 81 is also stopped. However, since the threshing portion output shaft 191 of the threshing portion transmission device 186 continues to rotate for a while due to inertia even after the driving of the engine 81 is stopped, the force that the threshing portion output shaft 191 rotates on the transmission input shaft 196 as well.
  • the feed chain 41 may continue to rotate. Therefore, when the power supply of the control device 84 is cut off (when the engine 81 is stopped), the hydraulic actuator 204 is shortened to drive the feed chain stop mechanism 193 and cut off the power to the feed chain 41. Thus, the feed chain 41 can be forcibly stopped.
  • the feed chain stop mechanism 193 may be driven by an electric actuator instead of the hydraulic actuator, and is not limited.
  • the belt-type continuously variable transmission 208 outputs the transmitted power after shifting continuously.
  • the belt type continuously variable transmission 208 includes a transmission input shaft 196, an input pulley 220 as a first pulley connected to an end of the transmission input shaft 196, a cam mechanism 231, a transmission shaft 240, and a second pulley.
  • the input pulley 220 is connected to one end of a transmission input shaft 196 that protrudes from the power transmission case 185 to the outside of the machine body.
  • the speed change input shaft 196 is arranged with the axial direction as the left-right direction of the machine body.
  • the input pulley 220 is a pulley that is disposed on the transmission input shaft 196 and includes a sheave as a pair of pulley members.
  • the input pulley 220 includes a movable sheave 221 as a pulley member provided inside the machine body, a fixed sheave 222 as a pulley member provided outside the machine body, and the like.
  • the movable sheave 221 is a member having a substantially cylindrical shaft tube portion and a substantially frustoconical sheave portion formed integrally with one end of the shaft tube portion in a side sectional view.
  • the movable sheave 221 has a sheave portion disposed outside the body of the shaft relative to the shaft tube portion, and is externally fitted to the speed change input shaft 196 so as to be slidable in the axial direction and not relatively rotatable.
  • the body outer surface 221a of the sheave part of the movable sheave 221 is formed as an inclined surface.
  • the fixed sheave 222 is a member having a substantially cylindrical shaft tube portion and a substantially frustoconical sheave portion formed integrally with one end of the shaft tube portion in a side sectional view.
  • the fixed sheave 222 is supported on the transmission input shaft 196 so as not to be relatively rotatable.
  • the body side surface 222a of the sheave portion of the fixed sheave 222 is formed as an inclined surface.
  • the groove of the input pulley 220 is formed by disposing the machine body outer surface 221a of the movable sheave 221 and the machine body side surface 222a of the fixed sheave 222 so as to face each other on the transmission input shaft 196.
  • a cam mechanism 231 is provided on the back side of the movable sheave 221.
  • a sheave side cam 232, a shaft side cam 233, and the like are provided.
  • the sheave cam 232 is a substantially cylindrical member. Sheave-side cam 232 is arranged so that the axial direction is in the left-right direction and the axial line coincides with the axial line of transmission input shaft 196. A plane perpendicular to the axial direction is formed on the outer surface of the body of the sheave side cam 232, and a cam surface is formed on the side surface of the body of the sheave side cam 232.
  • the sheave side cam 232 is externally fitted so as to be slidable in the axial direction with respect to the transmission input shaft and is not relatively rotatable.
  • the outer surface of the sheave side cam 232 is fixed to the rotating arm 301. Further, when the sheave cam 232 slides to the outside of the machine body, the movable sheave 221 is also formed to slide to the outside of the machine body.
  • the shaft-side cam 233 is arranged so that the axial direction is in the left-right direction and the axial line coincides with the axial line of the transmission input shaft 196.
  • a plane perpendicular to the axial direction is formed on the side surface of the shaft-side cam 233 and a cam surface is formed on the outer surface of the shaft-side cam 233.
  • the cam mechanism 231 includes a cam drive mechanism 300 for moving the sheave cam 232 to change the groove width of the input pulley 220.
  • the cam drive mechanism 300 includes a rotation arm 301, a link arm 302, a rotation member 303, an attachment member 306, and a motor 310 that is a drive device.
  • a rotating arm 301 shown in FIG. 5 is fixed to the outer surface of the body of the sheave cam 232.
  • the rotation arm 301 and the sheave side cam 232 are fixed so as not to be relatively rotatable, and the sheave side cam 232 rotates in accordance with the rotation of the rotation arm 301.
  • a link arm 302 is fixed to the end of the rotating arm 301.
  • the link arm 302 is a rod-like member, and is configured as a single member in this embodiment.
  • the link arm 302 has one end fixed to the end of the rotating arm 301 and the other end fixed to the front surface of the rotating member 303.
  • a rotation support shaft 304 is provided in the middle of the link arm 302, and the link arm 302 can be bent around the rotation support shaft 304.
  • the rotating member 303 has a shape in which a sector shape is cut out from a circular shape when viewed from the front.
  • a rotation shaft (not shown) is provided at the center of the rotation member 303, and the rotation shaft is connected to a motor 310 that is a driving device.
  • the rotating shaft is pivotally supported by the mounting member 306 so as to be rotatable.
  • the rotating member 303 is provided with an engaging portion 305 for limiting the rotation of the rotating member 303. The engaging portion protrudes rearward.
  • the guide hole 306a provided in the mounting member 306 is formed along an arc centered on the rotation axis.
  • An engaging portion 305 is inserted into the guide hole 306a, and the engaging portion 305 is configured to be movable within a range where the guide hole 306a is provided. With this configuration, the rotation of the rotating member 303 is limited.
  • the motor 310 is arranged behind the feed chain transmission case 201 and in front of the threshing section 4.
  • the transmission shaft 340 is arranged in parallel with the speed change input shaft 196 with the axial direction facing the front-rear direction.
  • the output pulley 250 as a second pulley is a pulley that is disposed on the transmission shaft 240 and includes a sheave as a pair of pulley members.
  • the output pulley 250 includes a fixed sheave 251 as a pulley member provided outside the machine body, a movable sheave 252 as a pulley member provided inside the machine body, and the like.
  • the fixed sheave 251 is a member made of the same material as the fixed sheave 222 and formed in the same shape.
  • the body side surface 251a of the sheave portion of the fixed sheave 251 is formed as an inclined surface.
  • the fixed sheave 251 is fixed to the transmission shaft 240.
  • the shaft portion of the fixed sheave 251 is inserted into the bearing 251e and supported so as to be rotatable with respect to the bearing 251e.
  • the movable sheave 252 is a member made of the same material as the movable sheave 221 and formed in the same shape.
  • the body outer surface 252a of the sheave portion of the movable sheave 252 is formed as an inclined surface.
  • the movable sheave 252 is supported so as to be slidable in the axial direction with respect to the transmission shaft 240 and not relatively rotatable.
  • the transmission output shaft 260 is disposed on the same axis as the transmission shaft 240.
  • An outer cylinder portion 261 and an inner cylinder portion 262 are formed outside the machine body of the transmission output shaft 260.
  • the outer cylinder portion 261 is arranged in a bottomed cylinder shape that is arranged with the axial direction directed in the left-right direction and the outer side of the body is open.
  • the inner cylinder part 262 is disposed on the bottomed cylinder in the outer cylinder part 261 with the axial direction facing the left-right direction and the outer side of the machine body being open.
  • the outer cylinder portion 261 and the inner cylinder portion 262 are formed so that the axes thereof coincide with each other and have a predetermined length in the left-right direction. A certain gap is formed between the inner peripheral surface of the outer cylindrical portion 261 and the outer peripheral surface of the inner cylindrical portion 262.
  • the left and right midway portion of the speed change output shaft 260 is inserted into the bearing 264 and is supported so as to be rotatable with respect to the bearing 264.
  • the inner end portion of the transmission shaft 240 is supported by the inner cylinder portion 262 of the transmission output shaft 260 so as to be relatively rotatable and slidable in the axial direction.
  • the spring 270 urges the movable sheave 252 to the outside of the aircraft.
  • the spring 270 is disposed in the gap between the outer cylinder portion 261 and the inner cylinder portion 262 of the transmission output shaft 260.
  • the inner end of the body of the spring 270 is in contact with the transmission output shaft 260, and the outer end of the body of the spring 270 is in contact with the outer end of the movable sheave 252. Due to the urging force of the spring 270, the movable sheave 252 is urged toward the outside of the machine body, that is, in the direction close to the fixed sheave 251.
  • the cam mechanism 280 enables transmission of torque between the output pulley 250 and the transmission output shaft 260.
  • the cam mechanism 280 includes a sheave side cam 281, a shaft side cam 282, and the like.
  • the sheave cam 281 is a substantially cylindrical member. Sheave-side cam 281 is arranged so that the axial direction is in the left-right direction and the axial line coincides with the axial line of transmission shaft 240. A plane perpendicular to the axial direction is formed on the outer surface of the body of the sheave side cam 281, and a cam surface is formed on the side of the body of the sheave side cam 281.
  • the shaft tube portion of the movable sheave 252 is inserted into the sheave cam 281 from the outside of the machine body.
  • the sheave cam 281 is fixed to the movable sheave 252 with the side surface of the sheave portion of the movable sheave 252 in contact with the outer surface of the sheave cam 281.
  • the shaft-side cam 282 is arranged so that the axial direction is in the left-right direction and the axial line coincides with the axial line of the transmission shaft 240.
  • a plane perpendicular to the axial direction is formed on the side surface of the shaft-side cam 282 and the cam surface is formed on the outer surface of the shaft-side cam 282.
  • the transmission shaft 240 is inserted into the shaft side cam 282 from the outside of the machine body.
  • the outer side surface of the outer cylinder portion 261 of the transmission output shaft 260 and the inner side surface of the shaft side cam 282 are brought into contact with each other, and the shaft side cam 282 is fixed to the transmission output shaft 260.
  • the side surface of the body of the sheave-side cam 281 and the outer surface of the body of the shaft-side cam 282 are arranged to face each other.
  • the belt 290 is wound around the groove of the input pulley 220 and the groove of the output pulley 250, and transmits the power of the input pulley 220 to the output pulley 250.
  • the belt 290 wound around the groove of the input pulley 220 is sandwiched between the input pulley 220 when the movable sheave 221 is pushed toward the fixed sheave 222 by the cam mechanism 231 with a predetermined force.
  • the belt 290 wound around the groove of the output pulley 250 is clamped by the output pulley 250 when the movable sheave 252 is pushed toward the fixed sheave 251 with a predetermined force by the urging force of the spring 270 or the like.
  • the input pulley 220 is also rotated together with the shift input shaft 196.
  • the output pulley 250 is rotated via the belt 290.
  • the sheave cam 281 fixed to the output pulley 250 is rotated.
  • the sheave cam 281 rotates, the cam surface of the sheave cam 281 and the cam surface of the shaft cam 282 come into contact with each other, and the shaft cam 282 rotates as the sheave cam 281 rotates.
  • the shaft side cam 282 is rotated, the shift output shaft 260 is rotated, and power is output from the shift output shaft 260.
  • the transmission output shaft 260 is connected to the power transmission sprockets 197A and 197B and the power transmission mechanism 198 in the transmission case 201 for the feed chain, and the feed chain rotating sprocket 205 is connected to the feed chain output shaft 199 connected to the power transmission mechanism 198. Is provided.
  • the feed chain rotating sprocket 205 is disposed at the front lower portion of the feed chain 41, and the feed chain 41 can be rotated by rotating the feed chain rotating sprocket 205.
  • the diameter of the belt 290 wound around the input pulley 220 is increased. Since the overall length of the belt 290 is constant, when the diameter of the belt 290 wound around the input pulley 220 increases, the movable sheave 252 of the output pulley 250 slides inward of the airframe against the biasing force of the spring 270. Thus, the groove width of the output pulley 250 is increased, and the diameter of the belt 290 wound around the output pulley 250 (hereinafter simply referred to as “output pulley diameter”) is reduced.
  • the speed ratio of the belt-type continuously variable transmission 208 changes to the speed increasing side.
  • the feed chain rotating sprocket 205 is accelerated, and the conveying speed of the feed chain 41 can be shifted to the increased speed side.
  • the conveyance efficiency can be improved by changing the conveyance speed of the feed chain 41 to the acceleration side.
  • the diameter of the belt 290 wound around the input pulley 220 decreases. Since the entire length of the belt 290 is constant, when the diameter of the belt 290 wound around the input pulley 220 becomes small, the movable sheave 252 of the output pulley 250 slides to the outside of the machine body by the biasing force of the spring 270, and the output The groove width of the pulley 250 is reduced, and the output pulley diameter is increased.
  • the gear ratio of the belt-type continuously variable transmission 208 changes to the deceleration side.
  • the feed chain rotating sprocket 205 is decelerated, and the conveyance speed of the feed chain 41 can be shifted to the deceleration side.
  • the conveyance efficiency can be improved by changing the conveyance speed of the feed chain 41 to the deceleration side.
  • the feed chain stop mechanism 193 is connected to a control device 84 that can transmit a control signal to the feed chain stop mechanism 193.
  • the control device 84 is connected to the first switch Sw ⁇ b> 1 and the second switch Sw ⁇ b> 2 that can transmit an input signal to the control device 84.
  • the first switch Sw ⁇ b> 1 and the second switch Sw ⁇ b> 2 can instruct the operation state of the feed chain stop mechanism 193 to the control device 84.
  • the control device 84 can change the connection / disconnection of the feed chain stop mechanism 193. Further, the control device 84 can transmit a control signal to the feed chain stop mechanism 193 that changes transmission or interruption of power to the cutting unit 3, and can control connection / disconnection of the feed chain stop mechanism 193.
  • the control device 84 is connected to a vehicle speed sensor 85 that detects the traveling speed of the combine 1, and the vehicle speed sensor 85 grasps the driving state of the aircraft.
  • the control device 84 is connected to a first sensor 86 for detecting the operation position of the main transmission lever 93 and a second sensor 87 for detecting the operation position of the work clutch lever 94. Further, the control device 84 is connected to a third sensor 88 that detects the operation of the cutting quick pedal 95 and an oiling switch 96.
  • the control device 84 is connected to an angle sensor 406 that detects the rotation angle of the culm guide 400.
  • control device 84 causes the combine 1 to travel, the operation position of the main transmission lever 93, the operation position of the work clutch lever 94, the operation of the cutting quick pedal 95, the on / off operation of the lubrication switch 96, and the grain
  • the rotation angle of the guide 400 is grasped.
  • the control device 84 in the combine 1 of the present embodiment is configured so that the feed chain stop mechanism 193 is in the engaged state on the condition that the work clutch lever 94 is operated to the threshing-in position and the combine 1 is in the running state.
  • the feed chain stop mechanism 193 is turned off to stop the drive of the feed chain 41.
  • the first switch Sw1 and the second switch Sw2 are simultaneously turned on after the feed chain stop mechanism 193 is turned off, the feed chain stop mechanism 193 is connected and the feed chain 41 is driven. Is done.
  • the combine 1 includes a cereal guide 400 on the left side.
  • the culm guide 400 is for aligning the culm and guiding it to the feed chain 41.
  • the cereal guide 400 includes a main body 401, a guide 402, and an operation lever 403.
  • the main body 401 is attached to the machine body at the rear end via a rotation shaft 404 and is freely rotatable between a state close to the feed chain 41 and a state separated from the feed chain 41 around the rotation shaft 404. Configured.
  • An operation lever 403 is attached to the front end of the main body 401. The operator can easily rotate the culm guide 400 with the operation lever 403.
  • a rotation plate 405 is formed behind the rotation shaft 404 of the main body 401. That is, the rotation plate 405 is rotated symmetrically with the rotation of the main body 401 as the main body 401 is rotated.
  • the rotation shaft 404 is provided with an angle sensor 406 that detects the rotation angle of the culm guide 400.
  • the angle sensor 406 is a sensor that detects the amount of rotation of the main body 401 of the grain guide 400 as an angle, and is configured by, for example, a potentiometer.
  • the first switch Sw ⁇ b> 1 is arranged behind the grain guide 400 and at a position where the main body 401 can come into contact with the rotating plate 405 in a state where the main body 401 is brought close to the feed chain 41.
  • the operator turns the culm guide 400 to bring the main body 401 close to the feed chain 41 to turn on the first switch Sw1, and rotates the culm guide 400 to bring the main body 401 into the feed chain 41.
  • the first switch Sw ⁇ b> 1 can be turned off by switching away from the first switch Sw ⁇ b> 1.
  • the second switch Sw2 is arranged in front of the culm guide 400.
  • the second switch Sw2 is turned on and off by the operator's pressing operation.
  • the second switch Sw2 is always turned off and is turned on only while the operator is pressing.
  • the handling operation is performed in a state where the combine 1 is stopped, that is, in a state where the crawler type traveling devices 22 and 22 are stopped and the feed chain 41 is stopped.
  • the worker rotates the grain straw guide 400 upward to separate the main body 401 from the feed chain 41.
  • the first switch Sw1 is operated to be turned off.
  • the feed chain 41 continues to be stopped.
  • the worker can rotate the culm guide 400 upward by directly operating the main body 401 when rotating the culm guide 400 upward.
  • the worker moves the culm guide operating lever 407 to the second position while sitting in the driver's seat 91, so that the culm guide 400 is moved.
  • the grain guide 400 can be rotated upwards in the state which sat in the driver's seat 91 before the handling operation start beforehand.
  • the work clutch lever 94 is moved to the position of “cutting and threshing”
  • the culm guide operation lever 407 is moved to the second position, so that the culm guide 400 during the handling operation is moved. It is possible to reliably perform the operation of rotating the upper part.
  • the worker places the harvested corn G in a predetermined place.
  • the predetermined place is a space in which the culm G can be pressed against the feed chain 41 by the guide unit 402 when the culm guide 400 is rotated downward.
  • the worker rotates the culm guide 400 downward to bring the main body 401 close to the feed chain 41.
  • the first switch Sw1 is switched to the on state.
  • the control device 84 keeps the feed chain stop mechanism 193 disconnected because the second switch Sw2 is in the OFF state.
  • the angle sensor 406 detects the rotation angle in the state where the grain straw guide 400 is rotated downward.
  • the control device 84 switches the feed chain stop mechanism 193 to the connection, and transmits the rotational power of the engine 81 to the feed chain 41. introduce.
  • the operator holds the operation lever 403 of the cereal guide 400 with one hand and operates the second switch Sw2 with the other hand. That is, the safety of the handling operation of the combine 1 is improved by preventing the handling operation from being performed unless both hands of the worker are closed and the safety is ensured.
  • the motor 310 can be driven according to the amount of rotation by which the worker has rotated the cereal guide 400. Specifically, as shown in FIG. 20A, the rotation direction and rotation speed of the motor 310 are controlled in accordance with the rotation angle detected by the angle sensor 406. For example, when the rotation amount of the cereal guide 400 is small (the rotation angle ⁇ is small), it is determined that the amount of cereal is large, and the motor 310 is used to increase the rotation speed of the feed chain 41. Is driven in the forward rotation direction (arrow A direction in FIG. 15). Further, as shown in FIG. 20B, when the amount of rotation of the culm guide 400 is large (the rotation angle ⁇ is large), it is determined that the amount of the culm is small and the rotation of the feed chain 41 is performed. In order to decelerate the moving speed, the motor 310 is driven in the reverse rotation direction (the direction of arrow B in FIG. 15).
  • an auxiliary operation switch Sw3 as an auxiliary operation means for forcibly driving the feed chain 41 is connected to the control device 84.
  • the control device 84 transmits a control signal to the feed chain stop mechanism 193 and the cutting clutch mechanism 89 to control the connection / disconnection thereof.
  • the operating condition of the field operation switch Sw3 the operating condition of the mowing quick pedal 95, and the operating condition of the lubrication switch 96 are the same as those described above.
  • the combine 1 includes a cereal guide 500 on the left side.
  • the culm guide 500 is for aligning the culm and guiding it to the feed chain 41.
  • the cereal guide 500 includes a main body portion 501, a guide portion 502, and an operation lever 503.
  • the main body portion 501 is attached to the machine body at the front end via a rotation shaft 504, and is rotatable between a state close to the feed chain 41 around the rotation shaft 504 and a state separated from the feed chain 41. Composed.
  • An operation lever 503 is attached to the rear end of the main body 501. The operator can easily rotate the culm guide 500 with the operation lever 503.
  • a rotation plate 505 is formed in front of the rotation shaft 504 of the main body 501. That is, the rotation plate 505 is rotated symmetrically with the rotation of the main body 501 as the main body 501 is rotated.
  • the rotation shaft 504 is provided with an angle sensor 406 that detects the rotation angle of the cereal guide 500.
  • the angle sensor 406 is a sensor that detects the amount of rotation of the main body portion 501 of the grain straw guide 500 as an angle, and is configured by, for example, a potentiometer.
  • the first switch Sw1 is disposed in front of the cereal guide 500 and at a position where the main body 501 can be brought into contact with the rotating plate 505 in a state where the main body 501 is brought close to the feed chain 41.
  • the worker turns the grain culm guide 500 to bring the main body part 501 close to the feed chain 41 to turn on the first switch Sw1, turns the grain culm guide 500 to turn the main body part 501 to the feed chain 41.
  • the first switch Sw ⁇ b> 1 can be turned off by switching away from the first switch Sw ⁇ b> 1.
  • the second switch Sw2 is disposed behind the grain guide 500 and above the feed chain 41.
  • the second switch Sw2 is turned on and off by the operator's pressing operation.
  • the second switch Sw2 is always turned off and is turned on only while the operator is pressing.
  • the handling operation is performed in a state where the combine 1 is stopped, that is, in a state where the crawler type traveling devices 22 and 22 are stopped and the feed chain 41 is stopped.
  • the worker rotates the grain straw guide 500 upward to separate the main body 501 from the feed chain 41.
  • the first switch Sw1 is operated to be turned off.
  • the feed chain 41 continues to be stopped.
  • the worker can rotate the culm guide 500 upward by directly operating the main body 501 when rotating the culm guide 500 upward.
  • the culm guide guide lever 500 is moved to the second position while sitting on the driver's seat 91, so that the culm guide 500 is moved. Can be rotated upward.
  • the grain guide 500 can be rotated upwards in the state which sat in the driver's seat 91 beforehand before the handling work start.
  • the worker places the harvested corn G in a predetermined place.
  • the predetermined place is a space in which the culm G can be pressed against the feed chain 41 by the guide unit 502 when the culm guide 500 is rotated downward.
  • the operator rotates the culm guide 500 downward to bring the main body 501 close to the feed chain 41.
  • the first switch Sw1 is switched to the on state.
  • the control device 84 keeps the feed chain stop mechanism 193 disconnected because the second switch Sw2 is in the OFF state.
  • the angle sensor 406 detects a rotation angle in a state where the grain straw guide 500 is rotated downward.
  • the present invention can be used for a combine capable of performing a handling operation.

Abstract

The present invention improves operability when forcibly driving from a state in which a feed chain is stopped. Provided is a combine in which a steering unit is provided with an operation means for driving and operating a threshing unit, driving of a threshing device and a feed chain of the threshing unit is permitted on the condition that the operation means is turned on and a machine body is in a traveling state, and the feed chain is stopped if it is detected that the machine body has stopped, wherein an auxiliary operation means that drives the feed chain is provided to an operation tool that is provided to the steering unit, and the feed chain which has been stopped is driven by turning on the auxiliary operation means.

Description

コンバインCombine
　本発明は、コンバインに関し、特に停止しているフィードチェーンを駆動する技術に関する。 The present invention relates to a combine, and more particularly to a technique for driving a stopped feed chain.
　特許文献１には、手扱スイッチを運転席近傍（サイドコラム上）及びフィードチェーン近傍の二箇所に配置し、手扱スイッチの入切操作と主変速レバーの操作位置とを関連付けて、フィードチェーンを駆動／停止するように制御する構成が開示される。具体的には、手扱スイッチを入り状態とすると、主変速レバーの操作位置に関係なくフィードチェーンを駆動し、手扱スイッチを切り状態とすると、主変速レバーがニュートラル又は後進に操作された際にフィードチェーンの駆動を停止する。このように構成することで、刈取クラッチレバーを操作することなく手扱作業を行うことが可能となっている。 In Patent Document 1, the hand switch is disposed in two places near the driver's seat (on the side column) and near the feed chain, and the on / off operation of the hand switch and the operation position of the main speed change lever are associated with each other. The structure which controls to drive / stop is disclosed. Specifically, when the hand switch is turned on, the feed chain is driven regardless of the operation position of the main gear shift lever, and when the hand switch is turned off, the main gear shift lever is operated neutral or reverse. Stop the feed chain drive. With this configuration, it is possible to perform a handling operation without operating the mowing clutch lever.
特開平５－１８４２３１号公報JP-A-5-184231
　特許文献１に記載の技術は、あくまで手扱作業を行う際の利便性向上を図るものである。つまり、刈取・脱穀作業を行う際は、刈取クラッチと脱穀クラッチを入り状態とし、かつ、手扱スイッチは切り状態とされている。そして、主変速レバーを操作して行う回行時等に、フィードチェーンを駆動するためには手扱スイッチを入り状態とする操作が必要となる。運転席側の手扱スイッチは、主変速レバーが設けられるサイドコラム上に配置されている旨が記載されている。つまり、手扱スイッチを操作するためには、主変速レバーから手を離す必要が生じることとなる。 The technology described in Patent Document 1 is intended only to improve convenience when performing a handling operation. That is, when performing the mowing / threshing operation, the mowing clutch and the threshing clutch are turned on, and the hand switch is turned off. In order to drive the feed chain, for example, during turning by operating the main transmission lever, an operation to turn on the hand switch is required. It is described that the handling switch on the driver's seat side is arranged on the side column provided with the main transmission lever. That is, in order to operate the hand switch, it is necessary to release the hand from the main transmission lever.
　操縦部に脱穀部を駆動操作する操作手段を設け、前記操作手段の入り操作と機体が走行状態であることを条件に、前記脱穀部の脱穀装置とフィードチェーンの駆動を許可し、前記機体の停止を検出した場合に、前記フィードチェーンを停止させるコンバインにおいて、前記操縦部に設けられる操作具に前記フィードチェーンを駆動する補助操作手段を設け、前記補助操作手段を入り操作することにより、前記停止されたフィードチェーンを駆動させる。 An operating means for driving the threshing part is provided in the control part, and the threshing device and the feed chain of the threshing part are allowed to be driven on the condition that the operation operation of the operating means and the body are in a running state. In a combine that stops the feed chain when a stop is detected, an auxiliary operation means for driving the feed chain is provided in an operation tool provided in the control unit, and the stop is performed by entering and operating the auxiliary operation means. Drive the feed chain.
　前記補助操作手段を主変速レバーに設けた。 The auxiliary operating means is provided on the main transmission lever.
　前記補助操作手段によるフィードチェーン駆動時間に制限を設けた。 制 限 The feed chain drive time by the auxiliary operation means was limited.
　前記補助操作手段によるフィードチェーン駆動速度を機体の車速と同調させた。 The feed chain drive speed by the auxiliary operation means was synchronized with the vehicle speed of the aircraft.
　本発明によれば、フィードチェーンが停止した状態から強制的に駆動する際の操作性を向上できる。 According to the present invention, it is possible to improve the operability when forcibly driving the feed chain from a stopped state.
コンバインの側面図Combine side view コンバインの動力伝達機構を示す図The figure which shows the power transmission mechanism of a combine コンバインの制御構成を示す図Diagram showing combine control structure 穀稈ガイドの構成を示す図The figure which shows the structure of the cereal guide 手扱作業の手順を示す図Diagram showing handling procedure 主変速レバーに補助操作スイッチを設けた構成を示す図The figure which shows the structure which provided the auxiliary operation switch in the main transmission lever 補助操作手段の作動条件を示す制御マトリクスControl matrix showing operating conditions of auxiliary operating means 刈取クイックペダルの作動条件を示す制御マトリクスControl matrix showing operating conditions of mowing quick pedal 注油スイッチの作動条件を示す制御マトリクスControl matrix showing operating conditions of lubrication switch コンバインの側面図Combine side view （Ａ）穀稈ガイド操作レバーを設けた構成を示す平面図（Ｂ）穀稈ガイド操作レバーを設けた構成を示す側面図(A) The top view which shows the structure which provided the corn straw guide operation lever (B) The side view which shows the structure which provided the corn straw guide operation lever コンバインの動力伝達機構を示す図The figure which shows the power transmission mechanism of a combine フィードチェーンの動力伝達機構を示す図Diagram showing the power transmission mechanism of the feed chain フィードチェーン変速機構を示す図Diagram showing feed chain speed change mechanism フィードチェーン変速機構を示す斜視図Perspective view showing feed chain transmission mechanism フィードチェーン変速機構及び穀稈ガイドを示す斜視図The perspective view which shows a feed chain transmission mechanism and a grain straw guide コンバインの制御構成を示す図Diagram showing combine control structure 穀稈ガイドの構成を示す図The figure which shows the structure of the cereal guide 手扱作業の手順を示す図Diagram showing handling procedure 穀稈ガイドの回動角度を示す図The figure which shows the rotation angle of the cereal guide 穀稈ガイドの構成を示す図The figure which shows the structure of the cereal guide 手扱き作業の手順を示す図Diagram showing the procedure for handling
　図１から図４を参照して、コンバイン１の全体構成について説明する。図１はコンバインの側面図を示している。 The overall configuration of the combine 1 will be described with reference to FIGS. FIG. 1 shows a side view of the combine.
　コンバイン１は、走行部２、刈取部３、脱穀部４、選別部５、貯留部６、排藁処理部７、動力部８、及び、操縦部９を備える。コンバイン１は、走行部２によって走行しつつ、刈取部３によって刈り取った穀稈を脱穀部４で脱穀し、選別部５で穀粒を選別して貯留部６に貯える。また、脱穀後の排藁は排藁処理部７によって処理される。動力部８は、これらの走行部２、刈取部３、脱穀部４、選別部５、貯留部６、排藁処理部７に動力を供給する。そして、操縦部９によってコンバイン１が稼働される。 The combine 1 includes a traveling unit 2, a reaping unit 3, a threshing unit 4, a sorting unit 5, a storage unit 6, a waste processing unit 7, a power unit 8, and a control unit 9. The combine 1 travels by the traveling unit 2 and threshs the cereals harvested by the harvesting unit 3 by the threshing unit 4, sorts the grains by the sorting unit 5, and stores them in the storage unit 6. Further, the waste after threshing is processed by the waste processing unit 7. The power unit 8 supplies power to the traveling unit 2, the mowing unit 3, the threshing unit 4, the sorting unit 5, the storage unit 6, and the waste disposal processing unit 7. Then, the combine 1 is operated by the control unit 9.
　走行部２は、機体フレーム２０の下方に設けられている。走行部２は、トランスミッション２１と、左右一対の走行装置（以降「クローラ式走行装置」とする）２２・２２と、を備える。トランスミッション２１は、動力部８のエンジン８１の動力（以降「回転動力」とする）をクローラ式走行装置２２・２２へ伝達する。クローラ式走行装置２２・２２は、コンバイン１を前後方向に走行させる。また、クローラ式走行装置２２・２２は、コンバイン１を左右方向に旋回させる。 The traveling unit 2 is provided below the body frame 20. The traveling unit 2 includes a transmission 21 and a pair of left and right traveling devices (hereinafter referred to as “crawler type traveling devices”) 22 and 22. The transmission 21 transmits the power of the engine 81 of the power unit 8 (hereinafter referred to as “rotational power”) to the crawler type traveling devices 22 and 22. The crawler type traveling devices 22 and 22 cause the combine 1 to travel in the front-rear direction. Further, the crawler traveling devices 22 and 22 turn the combine 1 in the left-right direction.
　刈取部３は、走行部２の前方に設けられている。刈取部３は、デバイダ３１と、引起装置３２と、切断装置３３と、搬送装置３４と、を備える。デバイダ３１は、圃場の穀稈を引起装置３２へ案内する。引起装置３２は、デバイダ３１によって案内された穀稈を引き起こす。切断装置３３は、引起装置３２によって引き起こされた穀稈を切断する。搬送装置３４は、切断装置３３によって切断された穀稈を脱穀部４へ搬送する。 The cutting unit 3 is provided in front of the traveling unit 2. The cutting unit 3 includes a divider 31, a pulling device 32, a cutting device 33, and a transport device 34. The divider 31 guides the grain culm to the pulling device 32. The pulling device 32 causes the culm guided by the divider 31. The cutting device 33 cuts the culm caused by the pulling device 32. The conveying device 34 conveys the cereals cut by the cutting device 33 to the threshing unit 4.
　脱穀部４は、刈取部３の後方に設けられている。脱穀部４は、フィードチェーン４１と、扱胴４２と、を備える。フィードチェーン４１は、搬送装置３４から穀稈を受け継いで排藁処理部７へ搬送する。扱胴４２は、フィードチェーン４１によって搬送されている穀稈を脱穀する。 The threshing unit 4 is provided behind the cutting unit 3. The threshing unit 4 includes a feed chain 41 and a handling drum 42. The feed chain 41 inherits the grain candy from the conveying device 34 and conveys it to the waste disposal processing unit 7. The handling cylinder 42 threshs the cereals that are conveyed by the feed chain 41.
　選別部５は、脱穀部４の下方に設けられている。選別部５は、揺動選別装置５１と、風選別装置５２と、穀粒搬送装置５３と、藁屑排出装置５４と、を備える。揺動選別装置５１は、脱穀部４から落下した脱穀物を穀粒と藁屑などに選別する。風選別装置５２は、揺動選別装置５１によって選別された脱穀物を更に穀粒と藁屑などに選別する。穀粒搬送装置５３は、揺動選別装置５１及び風選別装置５２によって選別された穀粒を貯留部６へ搬送する。藁屑排出装置５４は、揺動選別装置５１及び風選別装置５２によって選別された藁屑などを排出する。 The sorting unit 5 is provided below the threshing unit 4. The sorting unit 5 includes a swing sorting device 51, a wind sorting device 52, a grain transport device 53, and a sawdust discharging device 54. The swing sorting device 51 sorts the threshing that has fallen from the threshing unit 4 into grains and sawdust. The wind sorting device 52 further sorts the cereals sorted by the swing sorting device 51 into grains and swarf. The grain conveying device 53 conveys the grain selected by the swing sorting device 51 and the wind sorting device 52 to the storage unit 6. The swarf discharging device 54 discharges the swarf and the like sorted by the swing sorting device 51 and the wind sorting device 52.
　貯留部６は、脱穀部４の右側方に設けられている。貯留部６は、グレンタンク６１と、排出装置６２と、を備える。グレンタンク６１は、選別部５から搬送されてきた穀粒を貯留する。排出装置６２は、グレンタンク６１に貯留されている穀粒を任意の場所に排出できる。 The storage unit 6 is provided on the right side of the threshing unit 4. The storage unit 6 includes a Glen tank 61 and a discharge device 62. The Glen tank 61 stores the grains that have been conveyed from the sorting unit 5. The discharge device 62 can discharge the grains stored in the Glen tank 61 to an arbitrary place.
　排藁処理部７は、脱穀部４の後方に設けられている。排藁処理部７は、排藁搬送装置７１と、排藁切断装置７２と、を備える。排藁搬送装置７１は、フィードチェーン４１から穀稈を受け継いで排藁切断装置７２へ搬送する。排藁切断装置７２は、排藁搬送装置７１によって搬送された穀稈を切断して排出する。 The waste disposal unit 7 is provided behind the threshing unit 4. The waste disposal unit 7 includes a waste transporting device 71 and a waste cutting device 72. The waste transporting device 71 inherits the rice cake from the feed chain 41 and transports it to the waste cutting device 72. The waste cutting device 72 cuts and discharges the cereals conveyed by the waste conveying device 71.
　動力部８は、選別部５の右側方に設けられている。動力部８は、エンジン８１と、カウンタケース８２と、を備える。エンジン８１は、回転動力を発生させる。カウンタケース８２は、エンジン８１の回転動力を刈取部３や脱穀部４、選別部５へ伝達する。 The power unit 8 is provided on the right side of the sorting unit 5. The power unit 8 includes an engine 81 and a counter case 82. The engine 81 generates rotational power. The counter case 82 transmits the rotational power of the engine 81 to the cutting unit 3, the threshing unit 4, and the sorting unit 5.
　操縦部９は、動力部８の上方に設けられている。操縦部９は、運転席９１と、ハンドル９２や主変速レバー９３、作業クラッチレバー９４、刈取クイックペダル９５、注油スイッチ９６等の複数の操作具と、を備える。 The control unit 9 is provided above the power unit 8. The control unit 9 includes a driver's seat 91 and a plurality of operating tools such as a handle 92, a main transmission lever 93, a work clutch lever 94, a cutting quick pedal 95, and an oiling switch 96.
　運転席９１は、オペレータが座る座席である。ハンドル９２は、コンバイン１の進行方向を変更する操向ハンドルである。主変速レバー９３は、「前進」、「ニュートラル」、「後進」の三つのポジションを切り換えることでコンバイン１の進行方向を切り換えるとともに、前進方向、後進方向への倒し量でコンバイン１の走行速度を変更する。作業クラッチレバー９４は、刈取部３及び脱穀部４の駆動／停止を切り換える操作手段であり、「刈取入り・脱穀入り」、「刈取切り・脱穀入り」、「刈取切り・脱穀切り」の三つのポジションを有する。 The driver's seat 91 is a seat where an operator sits. The handle 92 is a steering handle that changes the traveling direction of the combine 1. The main transmission lever 93 switches the traveling direction of the combine 1 by switching the three positions of “forward”, “neutral”, and “reverse”, and also adjusts the traveling speed of the combine 1 by the amount of tilt in the forward direction and the backward direction. change. The work clutch lever 94 is an operation means for switching between driving / stopping of the cutting unit 3 and the threshing unit 4 and includes three types of “cutting / threshing”, “cutting / threshing”, and “cutting / threshing”. Have a position.
　刈取クイックペダル９５は、作業クラッチレバー９４が「刈取入り・脱穀入り」に操作されている場合に、操作することで刈取部３と脱穀部４を駆動する操作具である。刈取クイックペダル９５による駆動時間には制限時間（刈り取りから脱穀までの一連の作業に要する時間であり、例えば５秒）が設けられている。注油スイッチ９６は、刈取部３及び脱穀部４に注油する際に操作するスイッチであり、エンジン８１の回転数を低速（ローアイドル回転）とした状態で刈取部３及び脱穀部４を駆動する操作具である。 The reaping quick pedal 95 is an operating tool that drives the reaping part 3 and the threshing part 4 when operated when the work clutch lever 94 is operated to “entering reaping / threshing”. The driving time by the mowing quick pedal 95 is provided with a time limit (a time required for a series of operations from mowing to threshing, for example, 5 seconds). The oiling switch 96 is a switch that is operated when oiling the reaping part 3 and the threshing part 4, and is an operation for driving the reaping part 3 and the threshing part 4 in a state where the rotational speed of the engine 81 is set to a low speed (low idle rotation). It is a tool.
　オペレータは、各操作具を適宜操作することによってコンバイン１を稼動させる。このような構成により、オペレータは、運転席９１に着座した状態でコンバイン１を操縦できる。 The operator operates the combine 1 by appropriately operating each operation tool. With such a configuration, the operator can steer the combine 1 while sitting on the driver's seat 91.
　図２はコンバイン１の動力伝達機構の構成を示している。なお、以下では、動力伝達機構の主要な部分と本発明に関する部分のみを説明しており、その他の部分については省略している。また、以下の説明では、無段変速装置１１１を経由してカウンタケース８２に入力されるエンジン８１の回転動力を指定する場合、「無段変速装置１１１の回転動力」とする。 FIG. 2 shows the structure of the power transmission mechanism of the combine 1. In the following, only the main part of the power transmission mechanism and the part relating to the present invention are described, and the other parts are omitted. In the following description, when the rotational power of the engine 81 input to the counter case 82 via the continuously variable transmission 111 is designated, the rotational power of the continuously variable transmission 111 is assumed.
　コンバイン１の動力伝達機構は、主にトランスミッション２１と、カウンタケース８２と、その他の各部へエンジン８１の回転動力を伝達する回転軸やベルト等で構成されている。 The power transmission mechanism of the combine 1 is mainly composed of a transmission 21, a counter case 82, a rotating shaft, a belt, and the like that transmit the rotational power of the engine 81 to other parts.
　上述したように、トランスミッション２１は、エンジン８１の回転動力をクローラ式走行装置２２・２２へ伝達する。トランスミッション２１には、ベルトｂ１を介してエンジン８１の回転動力が入力される。トランスミッション２１は、変速装置として油圧－機械式の無段変速装置（ＨＭＴ）１１１を備えている。無段変速装置１１１は、エンジン８１の回転動力を油圧に変換した後に再び回転動力に変換してクローラ式走行装置２２・２２を駆動させる。このような構成により、トランスミッション２１は、クローラ式走行装置２２・２２の駆動状態を変更でき、コンバイン１を任意の方向に走行させることができる。 As described above, the transmission 21 transmits the rotational power of the engine 81 to the crawler type traveling devices 22 and 22. The rotational power of the engine 81 is input to the transmission 21 via the belt b1. The transmission 21 includes a hydraulic-mechanical continuously variable transmission (HMT) 111 as a transmission. The continuously variable transmission 111 converts the rotational power of the engine 81 into hydraulic pressure, and then converts it into rotational power again to drive the crawler type traveling devices 22 and 22. With such a configuration, the transmission 21 can change the driving state of the crawler type traveling devices 22 and 22 and can cause the combine 1 to travel in an arbitrary direction.
　カウンタケース８２は、エンジン８１の回転動力を刈取部３や脱穀部３、選別部４へ伝達する。カウンタケース８２には、ベルトｂ２・ｂ３を介してエンジン８１の回転動力が入力される。更に、カウンタケース８２には、ベルトｂ４・ｂ５を介して無段変速装置１１１の回転動力が入力される。カウンタケース８２は、遊星歯車機構を用いることによってエンジン８１と無段変速装置１１１の回転動力を合成し、フィードチェーン４１を駆動する。また、カウンタケース８２は、無段変速装置１１１の回転動力を刈取部３へ伝達する。これにより、カウンタケース８２は、フィードチェーン４１による搬送速度と刈取部３による刈取速度をコンバイン１の走行速度に同調（車速同調）させることができる。 The counter case 82 transmits the rotational power of the engine 81 to the cutting unit 3, the threshing unit 3, and the sorting unit 4. The rotational power of the engine 81 is input to the counter case 82 via the belts b2 and b3. Further, the rotational power of the continuously variable transmission 111 is input to the counter case 82 via the belts b4 and b5. The counter case 82 combines the rotational power of the engine 81 and the continuously variable transmission 111 by using a planetary gear mechanism, and drives the feed chain 41. Further, the counter case 82 transmits the rotational power of the continuously variable transmission 111 to the cutting unit 3. Thereby, the counter case 82 can synchronize (vehicle speed synchronization) the conveyance speed by the feed chain 41 and the cutting speed by the cutting unit 3 with the traveling speed of the combine 1.
　本実施形態のコンバイン１においては、エンジン８１の回転動力をフィードチェーン４１に伝達又は遮断できるクラッチ機構８３が設けられている。詳細に説明すると、エンジン８１と無段変速装置１１１の回転動力を合成して得られた動力をフィードチェーン４１に伝達又は遮断できるクラッチ機構８３が設けられている。 In the combine 1 of this embodiment, a clutch mechanism 83 that can transmit or block the rotational power of the engine 81 to the feed chain 41 is provided. More specifically, there is provided a clutch mechanism 83 that can transmit or shut off the power obtained by combining the rotational power of the engine 81 and the continuously variable transmission 111 to the feed chain 41.
　図３に示すように、クラッチ機構８３は、クラッチ機構８３に制御信号を送信できる制御装置８４と接続されている。制御装置８４は、制御装置８４に入力信号を送信できる第一スイッチＳｗ１及び第二スイッチＳｗ２と接続されている。第一スイッチＳｗ１及び第二スイッチＳｗ２は、制御装置８４に対してクラッチ機構８３の作動状態を指示できる。そして、制御装置８４は、クラッチ機構８３の断接を変更できる。また、制御装置８４は、刈取部３への動力の伝達又は遮断を変更する刈取クラッチ機構８９に制御信号を送信可能であり、刈取クラッチ機構８９の断接を制御可能である。 As shown in FIG. 3, the clutch mechanism 83 is connected to a control device 84 that can transmit a control signal to the clutch mechanism 83. The control device 84 is connected to the first switch Sw <b> 1 and the second switch Sw <b> 2 that can transmit an input signal to the control device 84. The first switch Sw <b> 1 and the second switch Sw <b> 2 can instruct the operation state of the clutch mechanism 83 to the control device 84. The control device 84 can change the connection / disconnection of the clutch mechanism 83. In addition, the control device 84 can transmit a control signal to the cutting clutch mechanism 89 that changes transmission or interruption of power to the cutting unit 3, and can control connection / disconnection of the cutting clutch mechanism 89.
　制御装置８４は、コンバイン１の走行速度を検出する車速センサ８５と接続され、車速センサ８５により機体の駆動状態を把握している。また、制御装置８４には、主変速レバー９３の操作位置を検出する第一センサ８６及び作業クラッチレバー９４の操作位置を検出する第二センサ８７が接続される。さらに、制御装置８４には、刈取クイックペダル９５の操作を検出する第三センサ８８、注油スイッチ９６が接続される。このように、制御装置８４によって、コンバイン１の走行状態、主変速レバー９３の操作位置、作業クラッチレバー９４の操作位置、刈取クイックペダル９５の操作、及び、注油スイッチ９６の入切操作が把握されている。 The control device 84 is connected to a vehicle speed sensor 85 that detects the traveling speed of the combine 1, and the vehicle speed sensor 85 grasps the driving state of the aircraft. The control device 84 is connected to a first sensor 86 for detecting the operation position of the main transmission lever 93 and a second sensor 87 for detecting the operation position of the work clutch lever 94. Further, the control device 84 is connected to a third sensor 88 that detects the operation of the cutting quick pedal 95 and an oiling switch 96. In this way, the control device 84 grasps the traveling state of the combine 1, the operation position of the main transmission lever 93, the operation position of the work clutch lever 94, the operation of the cutting quick pedal 95, and the on / off operation of the lubrication switch 96. ing.
　本実施形態のコンバイン１における制御装置８４は、作業クラッチレバー９４が脱穀入りのポジションに操作され、かつ、コンバイン１が走行状態であることを条件に、クラッチ機構８３を入り状態としてフィードチェーン４１の駆動を許可し、コンバイン１の停止を検出した場合に、クラッチ機構８３を切り状態としてフィードチェーン４１の駆動を停止するものである。また、クラッチ機構８３が切り状態となった後、第一スイッチＳｗ１及び第二スイッチＳｗ２が同時に入り状態に操作されると、クラッチ機構８３が接続状態とされてフィードチェーン４１が駆動される。 The control device 84 in the combine 1 of the present embodiment sets the clutch mechanism 83 in the engaged state on the condition that the work clutch lever 94 is operated to the threshing-in position and the combine 1 is in the running state. When the drive is permitted and the stop of the combine 1 is detected, the clutch mechanism 83 is disengaged and the drive of the feed chain 41 is stopped. In addition, when the first switch Sw1 and the second switch Sw2 are simultaneously turned on after the clutch mechanism 83 is in the disengaged state, the clutch mechanism 83 is brought into the connected state and the feed chain 41 is driven.
　図４に示すように、コンバイン１は、左側部に穀稈ガイド１００を備えている。穀稈ガイド１００は、穀稈を整列させてフィードチェーン４１へ案内するものである。穀稈ガイド１００は、本体部１０１と、案内部１０２と、操作レバー１０３と、を備える。 As shown in FIG. 4, the combine 1 includes a cereal guide 100 on the left side. The culm guide 100 is for aligning the culm and guiding it to the feed chain 41. The cereal guide 100 includes a main body 101, a guide 102, and an operation lever 103.
　本体部１０１は、後端が回動軸１０４を介して機体に取り付けられ、回動軸１０４を中心としてフィードチェーン４１と近接した状態と、フィードチェーン４１から離間した状態との間で回動自在に構成される。本体部１０１の前端には操作レバー１０３が取り付けられている。作業者は、操作レバー１０３によって容易に穀稈ガイド１００を回動させることができる。また、本体部１０１の回動軸１０４よりも後方には回動板１０５が形成されている。つまり、回動板１０５は本体部１０１を回動させることに伴って、本体部１０１の回動と対称的に回動される。 The main body 101 has a rear end attached to the airframe via a rotation shaft 104 and is rotatable between a state close to the feed chain 41 around the rotation shaft 104 and a state separated from the feed chain 41. Configured. An operation lever 103 is attached to the front end of the main body 101. The operator can easily rotate the culm guide 100 with the operation lever 103. A rotation plate 105 is formed behind the rotation shaft 104 of the main body 101. That is, the rotation plate 105 is rotated symmetrically with the rotation of the main body 101 as the main body 101 is rotated.
　第一スイッチＳｗ１は、穀稈ガイド１００の後方であって、本体部１０１をフィードチェーン４１に近接させた状態で回動板１０５と当接可能な位置に配置されている。作業者は、穀稈ガイド１００を回動させて本体部１０１をフィードチェーン４１に近接させることで第一スイッチＳｗ１を入り状態とし、穀稈ガイド１００を回動させて本体部１０１をフィードチェーン４１から離間させることで第一スイッチＳｗ１を切り状態とし、その入り切りを切り換えることが可能である。 The first switch Sw <b> 1 is arranged behind the grain guide 100 and at a position where the main body 101 can be brought into contact with the rotating plate 105 in a state where the main body 101 is brought close to the feed chain 41. The operator turns the grain guide 100 to bring the main body 101 close to the feed chain 41 to turn on the first switch Sw1, turns the grain guide 100 to turn the main body 101 to the feed chain 41. The first switch Sw <b> 1 can be turned off by switching away from the first switch Sw <b> 1.
　他方、第二スイッチＳｗ２は、穀稈ガイド１００の前方に配置されている。第二スイッチＳｗ２は、作業者の押圧操作によって入り切りが切り換えられる。なお、第二スイッチＳｗ２は、常時切り状態であり、作業者が押している間のみ入り状態とされる。 On the other hand, the second switch Sw2 is disposed in front of the grain guide 100. The second switch Sw2 is turned on and off by the operator's pressing operation. The second switch Sw2 is always turned off and is turned on only while the operator is pressing.
　次に、図５を参照して、コンバイン１の手扱作業について説明する。なお、手扱作業は、コンバイン１が停止した状態、つまり、クローラ式走行装置２２・２２が停止し、フィードチェーン４１が停止している状態で行われる。 Next, the handling operation of the combine 1 will be described with reference to FIG. The handling operation is performed in a state where the combine 1 is stopped, that is, in a state where the crawler type traveling devices 22 and 22 are stopped and the feed chain 41 is stopped.
　作業者は、穀稈ガイド１００を上方へ回動させて、本体部１０１をフィードチェーン４１から離間させる。これにより、第一スイッチＳｗ１が切り状態に操作される。なお、この際、当初よりフィードチェーン４１は停止しているので、フィードチェーン４１は引き続き停止した状態となる。 The worker rotates the grain straw guide 100 upward to separate the main body 101 from the feed chain 41. As a result, the first switch Sw1 is operated to be turned off. At this time, since the feed chain 41 is stopped from the beginning, the feed chain 41 continues to be stopped.
　次に、作業者は、刈り取った穀稈Ｇを所定の場所に置く。ここで所定の場所とは、穀稈ガイド１００を下方へ回動させた際に、案内部１０２によって穀稈Ｇをフィードチェーン４１に押し付けることができる空間である。 Next, the worker places the harvested corn G in a predetermined place. Here, the predetermined place is a space in which the culm G can be pressed against the feed chain 41 by the guide unit 102 when the culm guide 100 is rotated downward.
　その後、作業者は、穀稈ガイド１００を下方へ回動させて、本体部１０１をフィードチェーン４１に近接させる。これにより、第一スイッチＳｗ１が入り状態に切り換わる。ただし、制御装置８４は、第二スイッチＳｗ２が切り状態であることから、クラッチ機構８３の切断を維持する。 After that, the worker rotates the culm guide 100 downward to bring the main body 101 close to the feed chain 41. Thereby, the first switch Sw1 is switched to the on state. However, the control device 84 maintains the disengagement of the clutch mechanism 83 because the second switch Sw2 is in the disengaged state.
　そして、作業者は、第二スイッチＳｗ２を押して、入り状態に切り換える。このとき、制御装置８４は、第一スイッチＳｗ１と第二スイッチＳｗ２が共に入り状態となったことを受けて、クラッチ機構８３を接続に切り換えて、フィードチェーン４１にエンジン８１の回転動力を伝達する。 Then, the operator presses the second switch Sw2 to switch to the on state. At this time, the control device 84 receives the fact that the first switch Sw1 and the second switch Sw2 are in the same state, switches the clutch mechanism 83 to the connected state, and transmits the rotational power of the engine 81 to the feed chain 41. .
　このような構成により、作業者は、一方の手で穀稈ガイド１００の操作レバー１０３を握り、他方の手で第二スイッチＳｗ２を操作することとなる。つまり、作業者の両手が塞がれて安全性が確保された状態でなければ手扱作業を行えないようにすることで、コンバイン１の手扱作業の安全性を向上している。 With such a configuration, the operator holds the operation lever 103 of the cereal guide 100 with one hand and operates the second switch Sw2 with the other hand. That is, the safety of the handling operation of the combine 1 is improved by preventing the handling operation from being performed unless both hands of the worker are closed and the safety is ensured.
　本実施形態のコンバイン１では、制御装置８４にフィードチェーン４１を強制的に駆動するための補助操作手段としての補助操作スイッチＳｗ３が接続されている。補助操作スイッチＳｗ３を操作することにより、制御装置８４は、クラッチ機構８３及び刈取クラッチ機構８９に制御信号を送信して、その断接を制御する。 In the combine 1 of this embodiment, an auxiliary operation switch Sw3 as an auxiliary operation means for forcibly driving the feed chain 41 is connected to the control device 84. By operating the auxiliary operation switch Sw3, the control device 84 transmits a control signal to the clutch mechanism 83 and the cutting clutch mechanism 89 to control the connection / disconnection thereof.
　図６に示すように、補助操作スイッチＳｗ３は、主変速レバー９３に設けられており、主変速レバー９３を操作しつつ、補助操作スイッチＳｗ３を操作可能な位置に配置されている。つまり、補助操作スイッチＳｗ３を操縦部９に設けられた操作具に配置することで、操作具を操作した状態で補助操作スイッチＳｗ３を操作することを可能とし、操作性を向上している。 As shown in FIG. 6, the auxiliary operation switch Sw <b> 3 is provided on the main transmission lever 93 and is disposed at a position where the auxiliary operation switch Sw <b> 3 can be operated while operating the main transmission lever 93. That is, by arranging the auxiliary operation switch Sw3 on the operation tool provided in the control unit 9, the auxiliary operation switch Sw3 can be operated while the operation tool is operated, and the operability is improved.
　補助操作スイッチＳｗ３は、例えば、フィードチェーン４１が停止している状況で、脱穀部４の扱室入口に穀稈の詰まりが生じていることを確認した時、刈取部３の搬送装置に穀稈の詰まりが生じていることを確認した時等に操作することでフィードチェーン４１を強制的に駆動させて一時的な不具合を解消するための手段である。言い換えれば、本実施形態のコンバイン１は、手扱作業の際にフィードチェーン４１を駆動させる第一スイッチＳｗ１及び第二スイッチＳｗ２をフィードチェーン４１の近傍に配置することに加えて、手扱作業以外でフィードチェーン４１の駆動の必要が生じた時にフィードチェーン４１を強制的に駆動させる第三の補助操作スイッチＳｗ３を操作具である主変速レバー９３に配置している。 For example, when the auxiliary operation switch Sw3 confirms that cereal clogging has occurred at the entrance of the threshing section 4 in a state where the feed chain 41 is stopped, the auxiliary operation switch Sw3 This is a means for solving a temporary problem by forcibly driving the feed chain 41 by operating when it is confirmed that clogging is occurring. In other words, the combine 1 according to the present embodiment is arranged in addition to the first switch Sw1 and the second switch Sw2 that drive the feed chain 41 during the handling operation, in addition to the handling operation. Thus, a third auxiliary operation switch Sw3 for forcibly driving the feed chain 41 when the feed chain 41 needs to be driven is disposed on the main transmission lever 93 as an operation tool.
　次に、図７を参照して、補助操作スイッチＳｗ３の作動条件について説明する。 Next, the operating conditions of the auxiliary operation switch Sw3 will be described with reference to FIG.
　主変速レバー９３の操作位置によらず（「前進」、「ニュートラル」、「後進」の何れに操作されている状態であっても）、作業クラッチレバー９４が「刈取切り・脱穀入り」に操作されている状況で、補助操作スイッチＳｗ３を入り操作した場合、フィードチェーン４１が所定の制限時間（刈り取りから脱穀までの一連の作業に要する時間であり、例えば５秒）だけ作動される。なお、刈取部３は作業クラッチレバー９４の操作によって動力の伝達が遮断された状態となり、作動されない。このように、フィードチェーン４１の駆動時間に制限を設けることで、安全性を向上することができる。なお、この制限時間は連続駆動の最大値を設定するものであり、補助操作スイッチＳｗ３を押している間だけ（ただし、制限時間以内）フィードチェーン４１を作動させる構成としても良い。 Regardless of the operation position of the main transmission lever 93 (whether it is “forward”, “neutral”, or “reverse”), the work clutch lever 94 is operated to “cutting and threshing”. In the situation where the auxiliary operation switch Sw3 is turned on and operated, the feed chain 41 is operated for a predetermined time limit (a time required for a series of operations from mowing to threshing, for example, 5 seconds). The mowing unit 3 is not activated because the transmission of power is cut off by the operation of the work clutch lever 94. Thus, safety can be improved by providing a limit to the drive time of the feed chain 41. This time limit sets the maximum value for continuous driving, and the feed chain 41 may be operated only while the auxiliary operation switch Sw3 is being pressed (within the time limit).
　主変速レバー９３が「前進」に操作され、作業クラッチレバー９４が「刈取入り・脱穀入り」に操作されている状況で、補助操作スイッチＳｗ３を入り操作した場合、フィードチェーン４１及び刈取部３が所定の制限時間（刈り取りから脱穀までの一連の作業に要する時間であり、例えば５秒）だけ作動される。この時のフィードチェーン４１及び刈取部３の駆動速度は、主変速レバー９３の倒し量に対応した速度に設定される。つまり、カウンタケース８２によって車速同調させた状態で作動されることとなる。この場合でも、フィードチェーン４１及び刈取部３の駆動時間に制限を設けることで、安全性を向上することができる。なお、このとき、操縦部９に設けられている副変速レバーが「ニュートラル」に操作されていることを作動条件とする。さらに、主変速レバー９３が「ニュートラル」又は「後進」の場合は作業クラッチレバー９４の操作位置が「刈取入り・脱穀入り」の場合でも刈取部３は停止させて、フィードチェーン４１のみ所定の制限時間だけ作動される。 When the main transmission lever 93 is operated to “forward” and the work clutch lever 94 is operated to “cutting / threshing”, when the auxiliary operation switch Sw3 is turned on, the feed chain 41 and the cutting unit 3 are It is operated for a predetermined time limit (the time required for a series of operations from mowing to threshing, for example, 5 seconds). The driving speed of the feed chain 41 and the cutting unit 3 at this time is set to a speed corresponding to the amount of tilting of the main transmission lever 93. That is, the counter case 82 is operated in a state in which the vehicle speed is synchronized. Even in this case, safety can be improved by limiting the drive time of the feed chain 41 and the cutting unit 3. At this time, the operating condition is that the auxiliary transmission lever provided in the control unit 9 is operated to “neutral”. Further, when the main transmission lever 93 is “neutral” or “reverse”, even when the operation position of the working clutch lever 94 is “cutting / threshing”, the cutting unit 3 is stopped and only the feed chain 41 is limited. Operated for hours only.
　続いて、図８及び図９を参照して、刈取クイックペダル９５の作動条件及び注油スイッチ９６の作動条件について説明する。 Subsequently, with reference to FIG. 8 and FIG. 9, the operating condition of the cutting quick pedal 95 and the operating condition of the lubrication switch 96 will be described.
　主変速レバー９３の操作位置によらず（「前進」、「ニュートラル」、「後進」の何れに操作されている状態であっても）、作業クラッチレバー９４が「刈取入り・脱穀入り」に操作されている状況で、刈取クイックペダル９５を入り操作した場合、フィードチェーン４１及び刈取部３が所定の制限時間（刈り取りから脱穀までの一連の作業に要する時間であり、例えば５秒）だけ作動される。この時のフィードチェーン４１及び刈取部３の駆動速度は、主変速レバー９３の倒し量に対応した速度に設定される。つまり、カウンタケース８２によって車速同調させた状態で作動されることとなる。この場合でも、フィードチェーン４１及び刈取部３の駆動時間に制限を設けることで、安全性を向上することができる。 Regardless of the operation position of the main transmission lever 93 (whether it is “forward”, “neutral”, or “reverse”), the work clutch lever 94 is operated to “cutting / threshing”. When the cutting quick pedal 95 is turned on and operated in the current situation, the feed chain 41 and the cutting unit 3 are operated for a predetermined time limit (a time required for a series of operations from cutting to threshing, for example, 5 seconds). The The driving speed of the feed chain 41 and the cutting unit 3 at this time is set to a speed corresponding to the amount of tilting of the main transmission lever 93. That is, the counter case 82 is operated in a state in which the vehicle speed is synchronized. Even in this case, safety can be improved by limiting the drive time of the feed chain 41 and the cutting unit 3.
　主変速レバー９３が「前進」に操作され、作業クラッチレバー９４が「刈取入り・脱穀入り」に操作され、操縦部９に設けられている副変速レバーが「ニュートラル」に操作され、かつ、同じく操縦部９に設けられているアクセルダイヤル等の操作具によってエンジン８１の回転数がローアイドルに設定されている状況で、注油スイッチ９６を入り操作した場合、フィードチェーン４１及び刈取部３が低速（エンジン８１の回転数に応じた速度）で作動される。このように、注油スイッチ９６を操作して注油作業を行う場合は、上記の条件が満たされなければ注油モードに移行しないように設定されている。そして、この際の制限時間は、低速での駆動であること、注油作業の特性から設けられていない。このように、脱穀作業を伴わない注油作業を行う際は、エンジン８１の回転数がローアイドルであることを注油スイッチ９６の作動条件にすることで、安全性及び作業性を向上することができる。言い換えれば、注油作業を行う際のエンジン８１の回転数をローアイドルに設定することで、エンジン８１の回転数が大きければ注油作業中に油が飛散してしまうという不具合、エンジン８１が停止していれば注油作業が無駄になってしまうという不具合を解消している。 The main transmission lever 93 is operated to “forward”, the work clutch lever 94 is operated to “cutting and threshing”, the auxiliary transmission lever provided in the control unit 9 is operated to “neutral”, and When the lubrication switch 96 is turned on and operated in a situation where the rotational speed of the engine 81 is set to low idle by an operating tool such as an accelerator dial provided in the control unit 9, the feed chain 41 and the cutting unit 3 are operated at low speed ( The engine 81 is operated at a speed corresponding to the rotational speed of the engine 81. As described above, when the lubrication switch 96 is operated to perform the lubrication work, it is set so as not to shift to the lubrication mode unless the above conditions are satisfied. And the time limit in this case is not provided from the characteristic of the low speed drive and the lubrication work. Thus, when performing the lubrication work without threshing work, safety and workability can be improved by making the operating condition of the lubrication switch 96 that the rotational speed of the engine 81 is low idle. . In other words, by setting the rotational speed of the engine 81 when performing the lubrication work to low idle, if the rotational speed of the engine 81 is large, a problem that the oil is scattered during the lubrication work, the engine 81 is stopped. This eliminates the problem that the lubrication work is wasted.
　以上の実施形態では、補助操作スイッチＳｗ３を主変速レバー９３に設ける例を示しているが、例えば刈取クイックペダル９５にその機能を持たせることも可能である。その場合、刈取クイックペダル９５の作動条件において、作業クラッチレバー９４の操作位置が「刈取切り・脱穀入り」の条件で、刈取クイックペダル９５を入り操作した場合に、フィードチェーン４１が所定の制限時間（刈り取りから脱穀までの一連の作業に要する時間であり、例えば５秒）だけ作動される制御構成とすることで適用することが可能である。このように、操縦部９の他の操作具に補助操作スイッチＳｗ３の機能を持たせることも可能である。 In the embodiment described above, an example in which the auxiliary operation switch Sw3 is provided on the main transmission lever 93 is shown, but for example, the mowing quick pedal 95 can also have the function. In this case, in the operating condition of the cutting quick pedal 95, when the cutting operation of the working clutch lever 94 is “cutting and threshing” and the cutting quick pedal 95 is operated, the feed chain 41 has a predetermined time limit. (It is the time required for a series of operations from mowing to threshing, for example, 5 seconds). In this way, the other operation tool of the control unit 9 can have the function of the auxiliary operation switch Sw3.
　次に、図１０から図１８を参照して、別実施形態に係るコンバイン１の全体構成について説明する。図１０はコンバインの側面図を示している。なお、本実施形態に係るコンバインと、上述の実施形態に係るコンバイン１との違いは、穀稈ガイド４００を備えている点である。その他の構成は略同一であるため、以下の説明では適宜省略する。 Next, the overall configuration of the combine 1 according to another embodiment will be described with reference to FIGS. FIG. 10 shows a side view of the combine. In addition, the difference between the combine which concerns on this embodiment and the combine 1 which concerns on the above-mentioned embodiment is a point provided with the grain guide 400. Since other configurations are substantially the same, they will be omitted as appropriate in the following description.
　図１１に示すように、穀稈ガイド操作レバー９７は、穀稈ガイド４００の回動軸４０４を中心としてフィードチェーン４１と近接した状態と、フィードチェーン４１から離間した状態との間で切り換える操作具である。穀稈ガイド操作レバー９７は、運転席９１の近傍に設けられている。これにより、作業者は、運転席９１に座りながら、穀稈ガイド操作レバー９７を操作することができる。穀稈ガイド操作レバー９７は、操作レバーガイド溝９７ａ内を移動可能に配置されている。操作レバーガイド溝９７ａは、穀稈ガイド４００をフィードチェーン４１と近接した状態で保持する第一の位置と穀稈ガイド４００をフィードチェーン４１と離間した状態で保持する第二の位置とを有している。 As shown in FIG. 11, the culm guide operating lever 97 is an operation tool that switches between a state close to the feed chain 41 and a state separated from the feed chain 41 around the rotation axis 404 of the culm guide 400. It is. The cereal guide operating lever 97 is provided in the vicinity of the driver's seat 91. Thereby, the operator can operate the culm guide operation lever 97 while sitting on the driver's seat 91. The grain straw guide operating lever 97 is movably disposed in the operating lever guide groove 97a. The operation lever guide groove 97a has a first position for holding the culm guide 400 in a state of being close to the feed chain 41 and a second position for holding the culm guide 400 in a state of being separated from the feed chain 41. ing.
　図１２はコンバイン１の動力伝達機構の構成を示している。エンジン８１からの動力が走行部２のトランスミッション２１へと伝達され、トランスミッション２１から走行部出力プーリ１４１へと動力が伝達される。走行部出力プーリ１４１から刈取部第一入力プーリ１４２へと動力が伝達される。走行部出力プーリ１４１と刈取部第一入力プーリ１４２との間にはベルトが巻回されている。 FIG. 12 shows the configuration of the power transmission mechanism of the combine 1. Power from the engine 81 is transmitted to the transmission 21 of the traveling unit 2, and power is transmitted from the transmission 21 to the traveling unit output pulley 141. Power is transmitted from the traveling unit output pulley 141 to the cutting unit first input pulley 142. A belt is wound around the traveling unit output pulley 141 and the cutting unit first input pulley 142.
　また、脱穀部出力プーリ１４３から刈取部第二入力プーリ１４４へと動力が伝達される。脱穀部出力プーリ１４３と刈取部第二入力プーリ１４４との間にはベルトが巻回されており、ベルトの中途部にはテンションクラッチ１４５が設けられている。 Also, power is transmitted from the threshing section output pulley 143 to the reaping section second input pulley 144. A belt is wound between the threshing section output pulley 143 and the reaping section second input pulley 144, and a tension clutch 145 is provided in the middle of the belt.
　通常作業時には、テンションクラッチ１４５は切状態になっており、走行部出力プーリ１４１から刈取部第一入力プーリ１４２へと動力が伝達される。また、走行部２が停止状態にあるときに、穀稈の流し込み作業のみを行う場合には、脱穀部４が駆動しているので、テンションクラッチ１４５を入状態にすることによって、脱穀部出力プーリ１４３から刈取部第二入力プーリ１４４へと伝達される。 During normal operation, the tension clutch 145 is in a disengaged state, and power is transmitted from the traveling unit output pulley 141 to the cutting unit first input pulley 142. Further, when only the pouring operation of the cereal is performed when the traveling unit 2 is in the stopped state, the threshing unit 4 is driven. 143 to the reaper second input pulley 144.
　刈取部第一入力プーリ１４２及び刈取部第二入力プーリ１４４は、刈取入力軸を構成する刈取第一軸１４７の一端に固設されている。 The reaping portion first input pulley 142 and the reaping portion second input pulley 144 are fixed to one end of the reaping first shaft 147 constituting the reaping input shaft.
　また、刈取第一軸１４７は、軸心方向が進行方向に対して左右方向になるように配置されている。刈取第一軸１４７の中途部には二つのベベルギヤが固設されており、一方のベベルギヤを介して上部搬送軸１４８に動力を伝達している。上部搬送軸１４８は、上部搬送装置１３２へと動力を伝達するための軸である。また、他方のベベルギヤを介して、刈取第二軸１５１へと動力が伝達される。また、刈取第一軸１４７の他端には補助搬送装置１１３の補助搬送駆動ケース２１０が固設されている。 Further, the first cutting shaft 147 is arranged so that the axial direction is the left-right direction with respect to the traveling direction. Two bevel gears are fixed in the middle of the cutting first shaft 147, and the power is transmitted to the upper conveying shaft 148 via one bevel gear. The upper transport shaft 148 is a shaft for transmitting power to the upper transport device 132. In addition, power is transmitted to the second cutting shaft 151 via the other bevel gear. Further, an auxiliary conveyance driving case 210 of the auxiliary conveyance device 113 is fixed to the other end of the cutting first shaft 147.
　刈取第二軸１５１の中途部にはベベルギヤが固設されており、ベベルギヤを介して下部搬送軸１５３及び縦搬送軸１５５へと動力が伝達される。下部搬送軸１５３及び縦搬送軸１５５は、それぞれ下部搬送装置１３０及び縦搬送装置１３４へと動力を伝達するための軸である。また、刈取第二軸１５１の他端にはベベルギヤが固設されており、ベベルギヤを介して刈取第三軸１５８へと動力が伝達される。 A bevel gear is fixed in the middle of the cutting second shaft 151, and power is transmitted to the lower transport shaft 153 and the vertical transport shaft 155 via the bevel gear. The lower conveyance shaft 153 and the vertical conveyance shaft 155 are axes for transmitting power to the lower conveyance device 130 and the vertical conveyance device 134, respectively. Also, a bevel gear is fixed to the other end of the second cutting shaft 151, and power is transmitted to the third cutting shaft 158 via the bevel gear.
　刈取第三軸１５８の他端にはベベルギヤが固設されており、ベベルギヤを介して刈刃駆動軸１５９へと動力が伝達される。刈刃駆動軸１５９は、切断装置３３を構成する刈刃１２７へと動力を伝達するための軸である。また、刈取第三軸１５８の中途部にはベベルギヤが固設されており、ベベルギヤを介して刈取第四軸１６２へと動力が伝達される。 A bevel gear is fixed to the other end of the third cutting shaft 158, and power is transmitted to the cutting blade drive shaft 159 via the bevel gear. The cutting blade drive shaft 159 is a shaft for transmitting power to the cutting blade 127 constituting the cutting device 33. Further, a bevel gear is fixed in the middle of the third cutting shaft 158, and power is transmitted to the fourth cutting shaft 162 through the bevel gear.
　刈取第四軸１６２の中途部にはベベルギヤが固設されており、ベベルギヤ及び動力伝達軸１６３を介してさらに搬送軸１６４へと動力を伝達する。搬送軸１６４はスターホイル１２５、突起付ベルト１２６、下部搬送装置１３０、及び上部搬送装置１３２へと動力を伝達するための軸である。刈取第四軸１６２の他端には、二枚のギヤが固設されており、ギヤを介して刈取第五軸１７１へと動力が伝達される。 A bevel gear is fixedly provided in the middle of the cutting fourth shaft 162, and power is further transmitted to the transport shaft 164 via the bevel gear and the power transmission shaft 163. The conveyance shaft 164 is a shaft for transmitting power to the star wheel 125, the belt 126 with protrusions, the lower conveyance device 130, and the upper conveyance device 132. Two gears are fixed to the other end of the fourth cutting shaft 162, and power is transmitted to the fifth cutting shaft 171 via the gear.
　刈取第五軸１７１の他端にはベベルギヤが固設されており、ベベルギヤを介して刈取第六軸１７２へと動力が伝達される。そして、刈取第六軸１７２から引起軸１７３を介して、図１２に示す複数の引起装置３２のチェーンを駆動し、引起タイン１２４を駆動する。 A bevel gear is fixed to the other end of the fifth cutting shaft 171, and power is transmitted to the sixth cutting shaft 172 via the bevel gear. Then, the chain of the plurality of pulling devices 32 shown in FIG. 12 is driven from the sixth cutting shaft 172 through the pulling shaft 173 to drive the pulling tine 124.
　次に、脱穀部４及び搬送装置３４の動力伝達機構について図１３を用いて説明する。 Next, the power transmission mechanism of the threshing unit 4 and the conveying device 34 will be described with reference to FIG.
　エンジン８１に設けられた出力プーリ１８１から動力伝達ケース１８５の入力プーリ１８２へと動力が伝達される。出力プーリ１８１と入力プーリ１８２との間にはベルトが巻回されている。入力プーリ１８２は動力伝達第一軸１８３の一端に固設されている。動力伝達第一軸１８３の他端側は動力伝達ケース１８５に収納されている。 Power is transmitted from the output pulley 181 provided in the engine 81 to the input pulley 182 of the power transmission case 185. A belt is wound between the output pulley 181 and the input pulley 182. The input pulley 182 is fixed to one end of the power transmission first shaft 183. The other end side of the power transmission first shaft 183 is housed in a power transmission case 185.
　動力伝達ケース１８５内には、脱穀部用伝動装置１８６が収納される。動力伝達ケース１８５は、脱穀部４の前方に配置されている。また、動力伝達ケース１８５の側方端部はフィードチェーン４１よりも機体内側になるように配置されている。このように構成することにより、機体幅内に収めることができる。脱穀部用伝動装置１８６は、脱穀部４へ動力を伝達するものであり、動力伝達第二軸１９５及び脱穀部出力軸１９１を有する。つまり、左右幅を増加させることなくフィードチェーン４１に動力を伝達できるようにしている。 In the power transmission case 185, a transmission device 186 for the threshing part is accommodated. The power transmission case 185 is disposed in front of the threshing unit 4. Further, the side end portion of the power transmission case 185 is arranged so as to be inside the machine body with respect to the feed chain 41. By comprising in this way, it can fit in the body width. The threshing portion transmission device 186 transmits power to the threshing portion 4 and includes a power transmission second shaft 195 and a threshing portion output shaft 191. That is, power can be transmitted to the feed chain 41 without increasing the lateral width.
　また、フィードチェーン用伝動装置１８７は、フィードチェーン用伝動ケース２０１と、フィードチェーン用伝動ケース２０１を貫通する変速入力軸１９６と、フィードチェーン用伝動ケース２０１よりも機体外側に設けられたフィードチェーン変速機構であるベルト式無段変速機２０８と、ベルト式無段変速機２０８から出力された動力を出力する変速出力軸２６０と、を備える。 The feed chain transmission device 187 includes a feed chain transmission case 201, a transmission input shaft 196 that penetrates the feed chain transmission case 201, and a feed chain transmission provided on the outer side of the body of the feed chain transmission case 201. A belt-type continuously variable transmission 208 that is a mechanism and a transmission output shaft 260 that outputs power output from the belt-type continuously variable transmission 208 are provided.
　動力伝達第一軸１８３の他端にはギヤが設けられており、ギヤを介して一端にギヤを設けた動力伝達第二軸１９５へ動力が伝達される。 A gear is provided at the other end of the power transmission first shaft 183, and power is transmitted to the power transmission second shaft 195 provided with a gear at one end via the gear.
　動力伝達第二軸１９５の中途部にはベベルギヤが固設されており、ベベルギヤを介し脱穀部出力軸１９１へと動力が伝達される。脱穀部出力軸１９１は、図示せぬ扱胴や排藁処理装置へ動力を伝達するための軸である。 A bevel gear is fixed in the middle of the power transmission second shaft 195, and power is transmitted to the threshing portion output shaft 191 through the bevel gear. The threshing portion output shaft 191 is a shaft for transmitting power to a handling cylinder and a waste treatment apparatus (not shown).
　動力伝達第二軸１９５の他端にはギヤが設けられており、ギヤを介して変速入力軸１９６へと動力が伝達される。変速入力軸１９６の他端には、フィードチェーン変速機構としてのベルト式無段変速機２０８の入力プーリ２２０が設けられている。 A gear is provided at the other end of the power transmission second shaft 195, and power is transmitted to the transmission input shaft 196 via the gear. The other end of the transmission input shaft 196 is provided with an input pulley 220 of a belt type continuously variable transmission 208 as a feed chain transmission mechanism.
　また、入力プーリ２２０は、ベルト２９０を介して出力プーリ２５０へ動力を伝達する。出力プーリ２５０は、変速出力軸２６０へ動力を出力する。 Also, the input pulley 220 transmits power to the output pulley 250 via the belt 290. The output pulley 250 outputs power to the speed change output shaft 260.
　変速出力軸２６０の端部には、動力伝達スプロケット１９７Ａが設けられており、動力伝達スプロケット１９７Ａを介して、変速入力軸１９６に相対回動可能に嵌設されている動力伝達スプロケット１９７Ｂへと動力が伝達される。動力伝達スプロケット１９７Ｂの他端にはギヤが設けられており、当該ギヤは複数のギヤからなる動力伝達機構１９８を介して、フィードチェーン出力軸１９９に動力を伝達する。動力伝達スプロケット１９７Ａ・１９７Ｂ、及び動力伝達機構１９８は、フィードチェーン用伝動ケース２０１に収納されている。 A power transmission sprocket 197A is provided at the end of the speed change output shaft 260, and the power is transmitted via the power transmission sprocket 197A to the power transmission sprocket 197B fitted to the speed change input shaft 196 so as to be relatively rotatable. Is transmitted. A gear is provided at the other end of the power transmission sprocket 197B, and the gear transmits power to the feed chain output shaft 199 via a power transmission mechanism 198 composed of a plurality of gears. The power transmission sprockets 197A and 197B and the power transmission mechanism 198 are housed in a feed chain transmission case 201.
　また、動力伝達機構１９８には、フィードチェーン停止機構１９３が設けられている。フィードチェーン停止機構１９３は、フィードチェーン４１への動力伝達の入切を切り替えるための機構である。フィードチェーン停止機構１９３は、クラッチ機構によって構成されている。詳細には、図１３に示すように、動力伝達機構１９８は、切替軸２０２を有し、切替軸２０２にはクラッチが軸方向摺動可能に固設されている。切替軸２０２にはリンク機構２０３を介して駆動機構である油圧アクチュエータ２０４が連結されている。油圧アクチュエータ２０４は伸縮することによりリンク機構２０３を移動させる。油圧アクチュエータ２０４の油路には、切換弁２０６が設けられている。切換弁２０６は、２位置４ポート式の電磁弁にて構成され、ソレノイドが励磁されると油圧アクチュエータ２０４は伸長し、ソレノイドを無励磁にすると短縮する。このように油圧アクチュエータ２０４を伸長させることにより、クラッチをギヤと離間させることで切状態にする。また、油圧アクチュエータ２０４を短縮させることにより、リンク機構２０３を移動させてクラッチをギヤと相対回転不能に連結することで入状態にする。 In addition, the power transmission mechanism 198 is provided with a feed chain stop mechanism 193. The feed chain stop mechanism 193 is a mechanism for switching on / off of power transmission to the feed chain 41. The feed chain stop mechanism 193 is constituted by a clutch mechanism. Specifically, as shown in FIG. 13, the power transmission mechanism 198 has a switching shaft 202, and a clutch is fixed to the switching shaft 202 so as to be slidable in the axial direction. A hydraulic actuator 204, which is a drive mechanism, is connected to the switching shaft 202 via a link mechanism 203. The hydraulic actuator 204 moves the link mechanism 203 by expanding and contracting. A switching valve 206 is provided in the oil passage of the hydraulic actuator 204. The switching valve 206 is constituted by a two-position four-port solenoid valve. The hydraulic actuator 204 extends when the solenoid is excited, and shortens when the solenoid is not excited. By extending the hydraulic actuator 204 in this way, the clutch is disengaged from the gear. Further, by shortening the hydraulic actuator 204, the link mechanism 203 is moved to connect the clutch to the gear so as not to rotate relative to the engaged state.
　リンク機構２０３は、フィードチェーン用伝動ケース２０１の外側に設けられている。詳細には、フィードチェーン用伝動ケース２０１の内側（エンジン側）に切替軸２０２とクラッチ体を収納するためのクラッチケースを設けている。前記リンク機構２０３はリンクアームを有しており、リンクアームの一端は、クラッチ摺動装置と連結されている。クラッチ摺動装置はピンを有しており、ピンを摺動させることにより、フィードチェーン用伝動ケース２０１内部のクラッチの入切を行う。 The link mechanism 203 is provided outside the transmission case 201 for the feed chain. More specifically, a clutch case for accommodating the switching shaft 202 and the clutch body is provided inside the feed chain transmission case 201 (engine side). The link mechanism 203 has a link arm, and one end of the link arm is connected to a clutch sliding device. The clutch sliding device has a pin. By sliding the pin, the clutch inside the feed chain transmission case 201 is turned on and off.
　切換弁２０６は、制御装置８４に接続されており、制御装置８４からパルス信号を受信した場合に、ソレノイドにパルス信号を流すことによって制御される。油圧アクチュエータ２０４を伸縮する場合には、ソレノイドを励磁することにより切換弁２０６を切り替える。制御装置８４は、エンジン８１にも接続されており、例えば、制御装置８４の電源が遮断された場合には、エンジン８１の駆動も止まる。しかし、脱穀部用伝動装置１８６の脱穀部出力軸１９１は、エンジン８１の駆動停止後も慣性によりしばらくの間回動し続けるため、変速入力軸１９６にも脱穀部出力軸１９１の回動する力が伝わりフィードチェーン４１が回り続けることがあった。そこで、制御装置８４の電源が遮断された場合（エンジン８１が停止した場合）には、油圧アクチュエータ２０４を短縮させて、フィードチェーン停止機構１９３を駆動し、フィードチェーン４１への動力を遮断することにより、フィードチェーン４１を強制的に停止することができる。但し、油圧アクチュエータの代わりに、電動のアクチュエータによりフィードチェーン停止機構１９３を駆動する構成としてもよく、限定するものではない。 The switching valve 206 is connected to the control device 84, and when the pulse signal is received from the control device 84, the switching valve 206 is controlled by causing the pulse signal to flow through the solenoid. When the hydraulic actuator 204 is expanded and contracted, the switching valve 206 is switched by exciting the solenoid. The control device 84 is also connected to the engine 81. For example, when the power of the control device 84 is shut off, the drive of the engine 81 is also stopped. However, since the threshing portion output shaft 191 of the threshing portion transmission device 186 continues to rotate for a while due to inertia even after the driving of the engine 81 is stopped, the force that the threshing portion output shaft 191 rotates on the transmission input shaft 196 as well. The feed chain 41 may continue to rotate. Therefore, when the power supply of the control device 84 is cut off (when the engine 81 is stopped), the hydraulic actuator 204 is shortened to drive the feed chain stop mechanism 193 and cut off the power to the feed chain 41. Thus, the feed chain 41 can be forcibly stopped. However, the feed chain stop mechanism 193 may be driven by an electric actuator instead of the hydraulic actuator, and is not limited.
　次に、フィードチェーン変速機構としてのベルト式無段変速機２０８について図１４を用いて説明する。ベルト式無段変速機２０８は、伝達される動力を無段階に変速した後に出力するものである。 Next, a belt type continuously variable transmission 208 as a feed chain transmission mechanism will be described with reference to FIG. The belt-type continuously variable transmission 208 outputs the transmitted power after shifting continuously.
　ベルト式無段変速機２０８は、変速入力軸１９６と、変速入力軸１９６の端部に連結された第一プーリとしての入力プーリ２２０と、カム機構２３１と、伝達軸２４０と、第二プーリとしての出力プーリ２５０と、出力プーリ２５０に連結された変速出力軸２６０と、スプリング２７０と、カム機構２８０と、ベルト２９０と、を具備する。 The belt type continuously variable transmission 208 includes a transmission input shaft 196, an input pulley 220 as a first pulley connected to an end of the transmission input shaft 196, a cam mechanism 231, a transmission shaft 240, and a second pulley. Output pulley 250, a speed change output shaft 260 coupled to the output pulley 250, a spring 270, a cam mechanism 280, and a belt 290.
　図１４から図１６に示すように、入力プーリ２２０は、動力伝達ケース１８５から機体外側に突出した変速入力軸１９６の一端に連結される。変速入力軸１９６は、軸線方向を機体左右方向として配置される。 14 to 16, the input pulley 220 is connected to one end of a transmission input shaft 196 that protrudes from the power transmission case 185 to the outside of the machine body. The speed change input shaft 196 is arranged with the axial direction as the left-right direction of the machine body.
　入力プーリ２２０は、変速入力軸１９６上に配置され、一対のプーリ部材としてのシーブを具備する滑車である。入力プーリ２２０は、機体内側に設けられたプーリ部材としての可動シーブ２２１、機体外側に設けられたプーリ部材としての固定シーブ２２２等を具備する。 The input pulley 220 is a pulley that is disposed on the transmission input shaft 196 and includes a sheave as a pair of pulley members. The input pulley 220 includes a movable sheave 221 as a pulley member provided inside the machine body, a fixed sheave 222 as a pulley member provided outside the machine body, and the like.
　可動シーブ２２１は、略円筒形状の軸筒部、及び当該軸筒部の一端に一体的に形成される環状かつ側面断面視で略円錐台形状のシーブ部を有する部材である。可動シーブ２２１は、シーブ部を軸筒部よりも機体外側に配置して、変速入力軸１９６に対して軸線方向に摺動可能かつ相対回転不能に外嵌される。可動シーブ２２１のシーブ部の機体外側面２２１ａは傾斜面として形成される。 The movable sheave 221 is a member having a substantially cylindrical shaft tube portion and a substantially frustoconical sheave portion formed integrally with one end of the shaft tube portion in a side sectional view. The movable sheave 221 has a sheave portion disposed outside the body of the shaft relative to the shaft tube portion, and is externally fitted to the speed change input shaft 196 so as to be slidable in the axial direction and not relatively rotatable. The body outer surface 221a of the sheave part of the movable sheave 221 is formed as an inclined surface.
　固定シーブ２２２は、略円筒形状の軸筒部、及び当該軸筒部の一端に一体的に形成される環状かつ側面断面視で略円錐台形状のシーブ部を有する部材である。固定シーブ２２２は、変速入力軸１９６に相対回転不能に支持される。固定シーブ２２２のシーブ部の機体内側面２２２ａは傾斜面として形成される。可動シーブ２２１の機体外側面２２１ａと固定シーブ２２２の機体内側面２２２ａとが変速入力軸１９６上で対向するように配置されることで、入力プーリ２２０の溝が形成される。 The fixed sheave 222 is a member having a substantially cylindrical shaft tube portion and a substantially frustoconical sheave portion formed integrally with one end of the shaft tube portion in a side sectional view. The fixed sheave 222 is supported on the transmission input shaft 196 so as not to be relatively rotatable. The body side surface 222a of the sheave portion of the fixed sheave 222 is formed as an inclined surface. The groove of the input pulley 220 is formed by disposing the machine body outer surface 221a of the movable sheave 221 and the machine body side surface 222a of the fixed sheave 222 so as to face each other on the transmission input shaft 196.
　可動シーブ２２１の背面側にはカム機構２３１が設けられる。シーブ側カム２３２、軸側カム２３３等を具備する。 A cam mechanism 231 is provided on the back side of the movable sheave 221. A sheave side cam 232, a shaft side cam 233, and the like are provided.
　シーブ側カム２３２は、略円筒形状の部材である。シーブ側カム２３２は、軸線方向を左右方向に向けて、かつ軸線が変速入力軸１９６の軸線と一致するように配置される。シーブ側カム２３２の機体外側面には、軸線方向と直交する平面が形成され、シーブ側カム２３２の機体内側面には、カム面が形成される。 The sheave cam 232 is a substantially cylindrical member. Sheave-side cam 232 is arranged so that the axial direction is in the left-right direction and the axial line coincides with the axial line of transmission input shaft 196. A plane perpendicular to the axial direction is formed on the outer surface of the body of the sheave side cam 232, and a cam surface is formed on the side surface of the body of the sheave side cam 232.
　シーブ側カム２３２は、変速入力軸に対して軸線方向に摺動可能かつ相対回転不能に外嵌されており、シーブ側カム２３２の機体外側面は、回動アーム３０１に固定されている。また、シーブ側カム２３２が機体外側へ摺動すると可動シーブ２２１もそれに伴い機体外側へ摺動するように形成されている。 The sheave side cam 232 is externally fitted so as to be slidable in the axial direction with respect to the transmission input shaft and is not relatively rotatable. The outer surface of the sheave side cam 232 is fixed to the rotating arm 301. Further, when the sheave cam 232 slides to the outside of the machine body, the movable sheave 221 is also formed to slide to the outside of the machine body.
　軸側カム２３３は、軸線方向を左右方向に向けて、かつ軸線が変速入力軸１９６の軸線と一致するように配置される。軸側カム２３３の機体内側面には、軸線方向と直交する平面が形成され、軸側カム２３３の機体外側面にはカム面が形成される。 The shaft-side cam 233 is arranged so that the axial direction is in the left-right direction and the axial line coincides with the axial line of the transmission input shaft 196. A plane perpendicular to the axial direction is formed on the side surface of the shaft-side cam 233 and a cam surface is formed on the outer surface of the shaft-side cam 233.
　また、図１４及び図１５に示すように、カム機構２３１は、シーブ側カム２３２を移動させて入力プーリ２２０の溝幅を変更するためのカム駆動機構３００を備える。 14 and 15, the cam mechanism 231 includes a cam drive mechanism 300 for moving the sheave cam 232 to change the groove width of the input pulley 220.
　カム駆動機構３００は、回動アーム３０１と、リンクアーム３０２と、回転部材３０３と、取付部材３０６と、駆動装置であるモータ３１０と、を有する。 The cam drive mechanism 300 includes a rotation arm 301, a link arm 302, a rotation member 303, an attachment member 306, and a motor 310 that is a drive device.
　シーブ側カム２３２の機体外側面には、図５に示す回動アーム３０１が固設されている。回動アーム３０１とシーブ側カム２３２とは相対回転不能に固設されており、回動アーム３０１の回動に合わせてシーブ側カム２３２が回動する。回動アーム３０１の端部にはリンクアーム３０２が固設されている。リンクアーム３０２は棒状の部材であり、本実施形態においては一本で構成されている。 A rotating arm 301 shown in FIG. 5 is fixed to the outer surface of the body of the sheave cam 232. The rotation arm 301 and the sheave side cam 232 are fixed so as not to be relatively rotatable, and the sheave side cam 232 rotates in accordance with the rotation of the rotation arm 301. A link arm 302 is fixed to the end of the rotating arm 301. The link arm 302 is a rod-like member, and is configured as a single member in this embodiment.
　リンクアーム３０２は、一端が回動アーム３０１の端部に固設されており、他端が回転部材３０３の前面に固設されている。また、リンクアーム３０２の中途部には回動支軸３０４が設けられており、リンクアーム３０２は回動支軸３０４回りに屈曲することが可能となっている。 The link arm 302 has one end fixed to the end of the rotating arm 301 and the other end fixed to the front surface of the rotating member 303. A rotation support shaft 304 is provided in the middle of the link arm 302, and the link arm 302 can be bent around the rotation support shaft 304.
　回転部材３０３は、正面視において円形から扇形を切り欠いた形状で構成されている。回転部材３０３の中心部には、図示せぬ回転軸が設けられており、前記回転軸は駆動装置であるモータ３１０に接続されている。また、前記回転軸は取付部材３０６に回動可能に軸支されている。また、回転部材３０３には、回転部材３０３の回転を制限するための係合部３０５が設けられている。係合部は後方へ突設している。 The rotating member 303 has a shape in which a sector shape is cut out from a circular shape when viewed from the front. A rotation shaft (not shown) is provided at the center of the rotation member 303, and the rotation shaft is connected to a motor 310 that is a driving device. The rotating shaft is pivotally supported by the mounting member 306 so as to be rotatable. Further, the rotating member 303 is provided with an engaging portion 305 for limiting the rotation of the rotating member 303. The engaging portion protrudes rearward.
　取付部材３０６に設けられたガイド孔３０６ａは、回転軸を中心とした円弧に沿って形成されている。ガイド孔３０６ａには係合部３０５が貫入されており、係合部３０５はガイド孔３０６ａの設けられた範囲内で移動可能に構成されている。このように構成することにより、回転部材３０３の回転が制限される。 The guide hole 306a provided in the mounting member 306 is formed along an arc centered on the rotation axis. An engaging portion 305 is inserted into the guide hole 306a, and the engaging portion 305 is configured to be movable within a range where the guide hole 306a is provided. With this configuration, the rotation of the rotating member 303 is limited.
　モータ３１０は、フィードチェーン用伝動ケース２０１の後方であって脱穀部４の前方に配置される。 The motor 310 is arranged behind the feed chain transmission case 201 and in front of the threshing section 4.
　図１４に示すように、伝達軸３４０は、軸線方向を前後方向に向けて変速入力軸１９６と平行に配置される。 As shown in FIG. 14, the transmission shaft 340 is arranged in parallel with the speed change input shaft 196 with the axial direction facing the front-rear direction.
　第二プーリとしての出力プーリ２５０は、伝達軸２４０上に配置され、一対のプーリ部材としてのシーブを具備する滑車である。出力プーリ２５０は、機体外側に設けられたプーリ部材としての固定シーブ２５１、機体内側に設けられたプーリ部材としての可動シーブ２５２等を具備する。 The output pulley 250 as a second pulley is a pulley that is disposed on the transmission shaft 240 and includes a sheave as a pair of pulley members. The output pulley 250 includes a fixed sheave 251 as a pulley member provided outside the machine body, a movable sheave 252 as a pulley member provided inside the machine body, and the like.
　固定シーブ２５１は、固定シーブ２２２と同一の材質で、同一の形状に形成される部材である。固定シーブ２５１のシーブ部の機体内側面２５１ａは、傾斜面として形成される。固定シーブ２５１は、伝達軸２４０に固定されている。固定シーブ２５１の軸部は軸受２５１ｅに挿通され、当該軸受２５１ｅに対して回動可能に支持される。 The fixed sheave 251 is a member made of the same material as the fixed sheave 222 and formed in the same shape. The body side surface 251a of the sheave portion of the fixed sheave 251 is formed as an inclined surface. The fixed sheave 251 is fixed to the transmission shaft 240. The shaft portion of the fixed sheave 251 is inserted into the bearing 251e and supported so as to be rotatable with respect to the bearing 251e.
　可動シーブ２５２は、可動シーブ２２１と同一の材質で、同一の形状に形成される部材である。可動シーブ２５２のシーブ部の機体外側面２５２ａは傾斜面として形成される。可動シーブ２５２は、伝達軸２４０に対して軸線方向に摺動可能かつ相対回転不能に支持される。固定シーブ２５１の機体内側面２５１ａと可動シーブ２５２の機体外側面２５２ａとが対向するように配置されることで、出力プーリ２５０の溝が形成される。 The movable sheave 252 is a member made of the same material as the movable sheave 221 and formed in the same shape. The body outer surface 252a of the sheave portion of the movable sheave 252 is formed as an inclined surface. The movable sheave 252 is supported so as to be slidable in the axial direction with respect to the transmission shaft 240 and not relatively rotatable. By arranging the body side surface 251a of the fixed sheave 251 and the body outer surface 252a of the movable sheave 252 to face each other, a groove of the output pulley 250 is formed.
　変速出力軸２６０は、伝達軸２４０と同一軸線上に配置されるものである。変速出力軸２６０の機体外側には、外筒部２６１及び内筒部２６２が形成される。外筒部２６１は、軸線方向を左右方向に向けて配置され、機体外側が開放された有底筒状に形成される。内筒部２６２は、外筒部２６１内において、軸線方向を左右方向に向けて配置され、機体外側が開放された有底筒上に形成される。外筒部２６１及び内筒部２６２は、その軸線が一致して、左右方向に所定の長さを有するように形成される。外筒部２６１の内周面と内筒部２６２の外周面との間には、一定の隙間が形成される。 The transmission output shaft 260 is disposed on the same axis as the transmission shaft 240. An outer cylinder portion 261 and an inner cylinder portion 262 are formed outside the machine body of the transmission output shaft 260. The outer cylinder portion 261 is arranged in a bottomed cylinder shape that is arranged with the axial direction directed in the left-right direction and the outer side of the body is open. The inner cylinder part 262 is disposed on the bottomed cylinder in the outer cylinder part 261 with the axial direction facing the left-right direction and the outer side of the machine body being open. The outer cylinder portion 261 and the inner cylinder portion 262 are formed so that the axes thereof coincide with each other and have a predetermined length in the left-right direction. A certain gap is formed between the inner peripheral surface of the outer cylindrical portion 261 and the outer peripheral surface of the inner cylindrical portion 262.
　変速出力軸２６０の左右中途部は軸受２６４に挿通され、当該軸受２６４に対して回動可能に支持される。変速出力軸２６０の内筒部２６２には、伝達軸２４０の内側端部が相対回転可能かつ軸方向摺動可能に支持される。 The left and right midway portion of the speed change output shaft 260 is inserted into the bearing 264 and is supported so as to be rotatable with respect to the bearing 264. The inner end portion of the transmission shaft 240 is supported by the inner cylinder portion 262 of the transmission output shaft 260 so as to be relatively rotatable and slidable in the axial direction.
　スプリング２７０は、可動シーブ２５２を機体外側へと付勢するものである。スプリング２７０は、変速出力軸２６０の外筒部２６１と内筒部２６２との隙間に配置される。スプリング２７０の機体内側端は変速出力軸２６０と当接され、スプリング２７０の機体外側端は可動シーブ２５２の機体外側端と当接される。スプリング２７０の付勢力によって、可動シーブ２５２は機体外側、すなわち固定シーブ２５１と近接する方向へと付勢される。 The spring 270 urges the movable sheave 252 to the outside of the aircraft. The spring 270 is disposed in the gap between the outer cylinder portion 261 and the inner cylinder portion 262 of the transmission output shaft 260. The inner end of the body of the spring 270 is in contact with the transmission output shaft 260, and the outer end of the body of the spring 270 is in contact with the outer end of the movable sheave 252. Due to the urging force of the spring 270, the movable sheave 252 is urged toward the outside of the machine body, that is, in the direction close to the fixed sheave 251.
　また、カム機構２８０は、出力プーリ２５０及び変速出力軸２６０間のトルクの伝達を可能とするものである。カム機構２８０は、シーブ側カム２８１、軸側カム２８２等を具備する。 Also, the cam mechanism 280 enables transmission of torque between the output pulley 250 and the transmission output shaft 260. The cam mechanism 280 includes a sheave side cam 281, a shaft side cam 282, and the like.
　シーブ側カム２８１は、略円筒形状の部材である。シーブ側カム２８１は、軸線方向を左右方向に向けて、かつ軸線が伝達軸２４０の軸線と一致するように配置される。シーブ側カム２８１の機体外側面には、軸線方向と直交する平面が形成され、シーブ側カム２８１の機体内側面には、カム面が形成される。 The sheave cam 281 is a substantially cylindrical member. Sheave-side cam 281 is arranged so that the axial direction is in the left-right direction and the axial line coincides with the axial line of transmission shaft 240. A plane perpendicular to the axial direction is formed on the outer surface of the body of the sheave side cam 281, and a cam surface is formed on the side of the body of the sheave side cam 281.
　シーブ側カム２８１には、機体外側から可動シーブ２５２の軸筒部が挿通される。可動シーブ２５２のシーブ部の機体内側面とシーブ側カム２８１の機体外側面とを当接させた状態でシーブ側カム２８１は可動シーブ２５２に固設される。 The shaft tube portion of the movable sheave 252 is inserted into the sheave cam 281 from the outside of the machine body. The sheave cam 281 is fixed to the movable sheave 252 with the side surface of the sheave portion of the movable sheave 252 in contact with the outer surface of the sheave cam 281.
　軸側カム２８２は、軸線方向を左右方向に向けて、かつ軸線が伝達軸２４０の軸線と一致するように配置される。軸側カム２８２の機体内側面には、軸線方向と直交する平面が形成され、軸側カム２８２の機体外側面にはカム面が形成される。 The shaft-side cam 282 is arranged so that the axial direction is in the left-right direction and the axial line coincides with the axial line of the transmission shaft 240. A plane perpendicular to the axial direction is formed on the side surface of the shaft-side cam 282 and the cam surface is formed on the outer surface of the shaft-side cam 282.
　軸側カム２８２には機体外側から伝達軸２４０が挿通される。変速出力軸２６０の外筒部２６１の機体外側面と軸側カム２８２の機体内側面とを当接させ、軸側カム２８２は変速出力軸２６０に固設される。その結果、シーブ側カム２８１の機体内側面と軸側カム２８２の機体外側面とが対向するように配置される。 The transmission shaft 240 is inserted into the shaft side cam 282 from the outside of the machine body. The outer side surface of the outer cylinder portion 261 of the transmission output shaft 260 and the inner side surface of the shaft side cam 282 are brought into contact with each other, and the shaft side cam 282 is fixed to the transmission output shaft 260. As a result, the side surface of the body of the sheave-side cam 281 and the outer surface of the body of the shaft-side cam 282 are arranged to face each other.
　ベルト２９０は、入力プーリ２２０の溝及び出力プーリ２５０の溝に巻回され、入力プーリ２２０の動力を出力プーリ２５０へと伝達するものである。 The belt 290 is wound around the groove of the input pulley 220 and the groove of the output pulley 250, and transmits the power of the input pulley 220 to the output pulley 250.
　入力プーリ２２０の溝に巻回されたベルト２９０は、カム機構２３１により所定の力で可動シーブ２２１が固定シーブ２２２側へと押されることで、入力プーリ２２０に挟持される。出力プーリ２５０の溝に巻回されたベルト２９０は、スプリング２７０の付勢力等により所定の力で可動シーブ２５２が固定シーブ２５１側へと押されることで、出力プーリ２５０に挟持される。 The belt 290 wound around the groove of the input pulley 220 is sandwiched between the input pulley 220 when the movable sheave 221 is pushed toward the fixed sheave 222 by the cam mechanism 231 with a predetermined force. The belt 290 wound around the groove of the output pulley 250 is clamped by the output pulley 250 when the movable sheave 252 is pushed toward the fixed sheave 251 with a predetermined force by the urging force of the spring 270 or the like.
　以下では、上述の如く構成されたベルト式無段変速機２０８における、動力伝達の態様について説明する。 Hereinafter, a mode of power transmission in the belt type continuously variable transmission 208 configured as described above will be described.
　エンジン８１からの動力により変速入力軸１９６が回転されると、変速入力軸１９６とともに入力プーリ２２０も回転される。入力プーリ２２０が回転されると、ベルト２９０を介して出力プーリ２５０が回転される。出力プーリ２５０が回転されると、出力プーリ２５０に固設されたシーブ側カム２８１が回転される。シーブ側カム２８１が回転すると、シーブ側カム２８１のカム面と軸側カム２８２のカム面とが当接し、シーブ側カム２８１の回転に伴って軸側カム２８２が回転される。軸側カム２８２が回転されると、変速出力軸２６０が回転され、当該変速出力軸２６０から動力が出力される。 When the shift input shaft 196 is rotated by the power from the engine 81, the input pulley 220 is also rotated together with the shift input shaft 196. When the input pulley 220 is rotated, the output pulley 250 is rotated via the belt 290. When the output pulley 250 is rotated, the sheave cam 281 fixed to the output pulley 250 is rotated. When the sheave cam 281 rotates, the cam surface of the sheave cam 281 and the cam surface of the shaft cam 282 come into contact with each other, and the shaft cam 282 rotates as the sheave cam 281 rotates. When the shaft side cam 282 is rotated, the shift output shaft 260 is rotated, and power is output from the shift output shaft 260.
　変速出力軸２６０はフィードチェーン用伝動ケース２０１内の動力伝達スプロケット１９７Ａ・１９７Ｂ、及び動力伝達機構１９８と連結され、動力伝達機構１９８と連結されるフィードチェーン出力軸１９９にはフィードチェーン回動スプロケット２０５が設けられている。フィードチェーン回動スプロケット２０５は、フィードチェーン４１の前下部に配置されており、フィードチェーン回動スプロケット２０５が回動することにより、フィードチェーン４１を回動させることができる。 The transmission output shaft 260 is connected to the power transmission sprockets 197A and 197B and the power transmission mechanism 198 in the transmission case 201 for the feed chain, and the feed chain rotating sprocket 205 is connected to the feed chain output shaft 199 connected to the power transmission mechanism 198. Is provided. The feed chain rotating sprocket 205 is disposed at the front lower portion of the feed chain 41, and the feed chain 41 can be rotated by rotating the feed chain rotating sprocket 205.
　モータ３１０を作動し、回転部材３０３を回動させた場合、リンクアーム３０２と回動アーム３０１との接続部分が変速入力軸１９６回りに回動する方向へ移動する。これにより、回動アーム３０１が変速入力軸回りに矢印Ａ方向へ回動し、シーブ側カム２３２が一体的に回動する。シーブ側カム２３２が回動することにより、可動シーブ２２１が変速入力軸１９６上を機体外側に向かって摺動するため、固定シーブ２２２の機体内側面２２２ａと可動シーブ２２１の機体外側面２２１ａとの間隔（入力プーリ２２０の溝幅）が狭くなる。入力プーリ２２０の溝幅が狭くなると、入力プーリ２２０に巻回されるベルト２９０の径が大きくなる。ベルト２９０の全長は一定であるため、入力プーリ２２０に巻回されるベルト２９０の径が大きくなると、出力プーリ２５０の可動シーブ２５２がスプリング２７０の付勢力に抗して機体内側へと摺動して、出力プーリ２５０の溝幅が広くなり、出力プーリ２５０に巻回されるベルト２９０の径（以下、単に「出力プーリ径」と記す）は小さくなる。このように入力プーリ２２０に巻回されるベルト２９０の径を大きくし、出力プーリ径を小さくすることで、ベルト式無段変速機２０８の変速比が増速側へと変わる。これにより、フィードチェーン回動スプロケット２０５が増速し、フィードチェーン４１の搬送速度を増速側へ変速することができる。例えば、車速が速くなった場合には、フィードチェーン４１の搬送速度を増速側へ変更することにより、搬送効率を向上させることができる。 When the motor 310 is operated and the rotating member 303 is rotated, the connecting portion between the link arm 302 and the rotating arm 301 moves in the direction of rotating around the transmission input shaft 196. As a result, the pivot arm 301 pivots in the direction of arrow A about the speed change input shaft, and the sheave cam 232 pivots integrally. As the sheave cam 232 rotates, the movable sheave 221 slides on the speed change input shaft 196 toward the outer side of the machine body. Therefore, the inner side surface 222a of the fixed sheave 222 and the outer side surface 221a of the movable sheave 221 are separated from each other. The interval (the groove width of the input pulley 220) is reduced. When the groove width of the input pulley 220 is reduced, the diameter of the belt 290 wound around the input pulley 220 is increased. Since the overall length of the belt 290 is constant, when the diameter of the belt 290 wound around the input pulley 220 increases, the movable sheave 252 of the output pulley 250 slides inward of the airframe against the biasing force of the spring 270. Thus, the groove width of the output pulley 250 is increased, and the diameter of the belt 290 wound around the output pulley 250 (hereinafter simply referred to as “output pulley diameter”) is reduced. Thus, by increasing the diameter of the belt 290 wound around the input pulley 220 and decreasing the output pulley diameter, the speed ratio of the belt-type continuously variable transmission 208 changes to the speed increasing side. As a result, the feed chain rotating sprocket 205 is accelerated, and the conveying speed of the feed chain 41 can be shifted to the increased speed side. For example, when the vehicle speed increases, the conveyance efficiency can be improved by changing the conveyance speed of the feed chain 41 to the acceleration side.
　モータ３１０を作動し、回転部材３０３を回動させた場合、リンクアーム３０２と回動アーム３０１との接続部分が変速入力軸１９６回りに回動する方向へ移動する。これにより、回動アーム３０１が変速入力軸回りに矢印Ｂ方向へ回動し、シーブ側カム２３２が一体的に回動する。シーブ側カム２３２が回動することにより、可動シーブ２２１が変速入力軸１９６上を機体内側に向かって摺動するため、可動シーブ２２１の機体外側面２２１ａと固定シーブ２２２の機体内側面２２２ａとの間隔（入力プーリ２２０の溝幅）が広くなる。入力プーリ２２０の溝幅が広くなると、入力プーリ２２０に巻回されるベルト２９０の径が小さくなる。ベルト２９０の全長は一定であるため、入力プーリ２２０に巻回されるベルト２９０の径が小さくなると、出力プーリ２５０の可動シーブ２５２がスプリング２７０の付勢力により機体外側へと摺動して、出力プーリ２５０の溝幅が狭くなり、出力プーリ径は大きくなる。このように入力プーリ２２０に巻回されるベルト２９０の径を小さくし、出力プーリ径を大きくすることで、ベルト式無段変速機２０８の変速比が減速側へと変わる。これにより、フィードチェーン回動スプロケット２０５が減速し、フィードチェーン４１の搬送速度を減速側へ変速することができる。例えば、車速が遅くなった場合には、フィードチェーン４１の搬送速度を減速側へ変更することにより、搬送効率を向上させることができる。 When the motor 310 is operated and the rotating member 303 is rotated, the connecting portion between the link arm 302 and the rotating arm 301 moves in the direction of rotating around the transmission input shaft 196. As a result, the pivot arm 301 pivots around the speed change input shaft in the arrow B direction, and the sheave cam 232 pivots integrally. As the sheave cam 232 rotates, the movable sheave 221 slides on the speed change input shaft 196 toward the inner side of the fuselage, so that the fuselage outer surface 221a of the movable sheave 221 and the fuselage outer surface 222a of the fixed sheave 222 The interval (groove width of the input pulley 220) becomes wider. As the groove width of the input pulley 220 increases, the diameter of the belt 290 wound around the input pulley 220 decreases. Since the entire length of the belt 290 is constant, when the diameter of the belt 290 wound around the input pulley 220 becomes small, the movable sheave 252 of the output pulley 250 slides to the outside of the machine body by the biasing force of the spring 270, and the output The groove width of the pulley 250 is reduced, and the output pulley diameter is increased. Thus, by reducing the diameter of the belt 290 wound around the input pulley 220 and increasing the output pulley diameter, the gear ratio of the belt-type continuously variable transmission 208 changes to the deceleration side. As a result, the feed chain rotating sprocket 205 is decelerated, and the conveyance speed of the feed chain 41 can be shifted to the deceleration side. For example, when the vehicle speed becomes slow, the conveyance efficiency can be improved by changing the conveyance speed of the feed chain 41 to the deceleration side.
　図１７に示すように、フィードチェーン停止機構１９３は、フィードチェーン停止機構１９３に制御信号を送信できる制御装置８４と接続されている。制御装置８４は、制御装置８４に入力信号を送信できる第一スイッチＳｗ１及び第二スイッチＳｗ２と接続されている。第一スイッチＳｗ１及び第二スイッチＳｗ２は、制御装置８４に対してフィードチェーン停止機構１９３の作動状態を指示できる。そして、制御装置８４は、フィードチェーン停止機構１９３の断接を変更できる。また、制御装置８４は、刈取部３への動力の伝達又は遮断を変更するフィードチェーン停止機構１９３に制御信号を送信可能であり、フィードチェーン停止機構１９３の断接を制御可能である。 As shown in FIG. 17, the feed chain stop mechanism 193 is connected to a control device 84 that can transmit a control signal to the feed chain stop mechanism 193. The control device 84 is connected to the first switch Sw <b> 1 and the second switch Sw <b> 2 that can transmit an input signal to the control device 84. The first switch Sw <b> 1 and the second switch Sw <b> 2 can instruct the operation state of the feed chain stop mechanism 193 to the control device 84. The control device 84 can change the connection / disconnection of the feed chain stop mechanism 193. Further, the control device 84 can transmit a control signal to the feed chain stop mechanism 193 that changes transmission or interruption of power to the cutting unit 3, and can control connection / disconnection of the feed chain stop mechanism 193.
　制御装置８４は、コンバイン１の走行速度を検出する車速センサ８５と接続され、車速センサ８５により機体の駆動状態を把握している。また、制御装置８４には、主変速レバー９３の操作位置を検出する第一センサ８６及び作業クラッチレバー９４の操作位置を検出する第二センサ８７が接続される。さらに、制御装置８４には、刈取クイックペダル９５の操作を検出する第三センサ８８、注油スイッチ９６が接続される。また、制御装置８４には、穀稈ガイド４００の回動角度を検出する角度センサ４０６が接続される。このように、制御装置８４によって、コンバイン１の走行状態、主変速レバー９３の操作位置、作業クラッチレバー９４の操作位置、刈取クイックペダル９５の操作、注油スイッチ９６の入切操作、及び、穀稈ガイド４００の回動角度が把握されている。 The control device 84 is connected to a vehicle speed sensor 85 that detects the traveling speed of the combine 1, and the vehicle speed sensor 85 grasps the driving state of the aircraft. The control device 84 is connected to a first sensor 86 for detecting the operation position of the main transmission lever 93 and a second sensor 87 for detecting the operation position of the work clutch lever 94. Further, the control device 84 is connected to a third sensor 88 that detects the operation of the cutting quick pedal 95 and an oiling switch 96. The control device 84 is connected to an angle sensor 406 that detects the rotation angle of the culm guide 400. Thus, the control device 84 causes the combine 1 to travel, the operation position of the main transmission lever 93, the operation position of the work clutch lever 94, the operation of the cutting quick pedal 95, the on / off operation of the lubrication switch 96, and the grain The rotation angle of the guide 400 is grasped.
　本実施形態のコンバイン１における制御装置８４は、作業クラッチレバー９４が脱穀入りのポジションに操作され、かつ、コンバイン１が走行状態であることを条件に、フィードチェーン停止機構１９３を入り状態としてフィードチェーン４１の駆動を許可し、コンバイン１の停止を検出した場合に、フィードチェーン停止機構１９３を切り状態としてフィードチェーン４１の駆動を停止するものである。また、フィードチェーン停止機構１９３が切り状態となった後、第一スイッチＳｗ１及び第二スイッチＳｗ２が同時に入り状態に操作されると、フィードチェーン停止機構１９３が接続状態とされてフィードチェーン４１が駆動される。 The control device 84 in the combine 1 of the present embodiment is configured so that the feed chain stop mechanism 193 is in the engaged state on the condition that the work clutch lever 94 is operated to the threshing-in position and the combine 1 is in the running state. When the drive of the combine 41 is detected and the stop of the combine 1 is detected, the feed chain stop mechanism 193 is turned off to stop the drive of the feed chain 41. When the first switch Sw1 and the second switch Sw2 are simultaneously turned on after the feed chain stop mechanism 193 is turned off, the feed chain stop mechanism 193 is connected and the feed chain 41 is driven. Is done.
　図１８に示すように、コンバイン１は、左側部に穀稈ガイド４００を備えている。穀稈ガイド４００は、穀稈を整列させてフィードチェーン４１へ案内するものである。穀稈ガイド４００は、本体部４０１と、案内部４０２と、操作レバー４０３と、を備える。 As shown in FIG. 18, the combine 1 includes a cereal guide 400 on the left side. The culm guide 400 is for aligning the culm and guiding it to the feed chain 41. The cereal guide 400 includes a main body 401, a guide 402, and an operation lever 403.
　本体部４０１は、後端が回動軸４０４を介して機体に取り付けられ、回動軸４０４を中心としてフィードチェーン４１と近接した状態と、フィードチェーン４１から離間した状態との間で回動自在に構成される。本体部４０１の前端には操作レバー４０３が取り付けられている。作業者は、操作レバー４０３によって容易に穀稈ガイド４００を回動させることができる。また、本体部４０１の回動軸４０４よりも後方には回動板４０５が形成されている。つまり、回動板４０５は本体部４０１を回動させることに伴って、本体部４０１の回動と対称的に回動される。 The main body 401 is attached to the machine body at the rear end via a rotation shaft 404 and is freely rotatable between a state close to the feed chain 41 and a state separated from the feed chain 41 around the rotation shaft 404. Configured. An operation lever 403 is attached to the front end of the main body 401. The operator can easily rotate the culm guide 400 with the operation lever 403. A rotation plate 405 is formed behind the rotation shaft 404 of the main body 401. That is, the rotation plate 405 is rotated symmetrically with the rotation of the main body 401 as the main body 401 is rotated.
　また、回動軸４０４には穀稈ガイド４００の回動角を検知する角度センサ４０６が設けられている。角度センサ４０６は、穀稈ガイド４００の本体部４０１の回動量を角度として検知するセンサであり、例えば、ポテンシオメータによって構成されている。 In addition, the rotation shaft 404 is provided with an angle sensor 406 that detects the rotation angle of the culm guide 400. The angle sensor 406 is a sensor that detects the amount of rotation of the main body 401 of the grain guide 400 as an angle, and is configured by, for example, a potentiometer.
　第一スイッチＳｗ１は、穀稈ガイド４００の後方であって、本体部４０１をフィードチェーン４１に近接させた状態で回動板４０５と当接可能な位置に配置されている。作業者は、穀稈ガイド４００を回動させて本体部４０１をフィードチェーン４１に近接させることで第一スイッチＳｗ１を入り状態とし、穀稈ガイド４００を回動させて本体部４０１をフィードチェーン４１から離間させることで第一スイッチＳｗ１を切り状態とし、その入り切りを切り換えることが可能である。 The first switch Sw <b> 1 is arranged behind the grain guide 400 and at a position where the main body 401 can come into contact with the rotating plate 405 in a state where the main body 401 is brought close to the feed chain 41. The operator turns the culm guide 400 to bring the main body 401 close to the feed chain 41 to turn on the first switch Sw1, and rotates the culm guide 400 to bring the main body 401 into the feed chain 41. The first switch Sw <b> 1 can be turned off by switching away from the first switch Sw <b> 1.
　他方、第二スイッチＳｗ２は、穀稈ガイド４００の前方に配置されている。第二スイッチＳｗ２は、作業者の押圧操作によって入り切りが切り換えられる。なお、第二スイッチＳｗ２は、常時切り状態であり、作業者が押している間のみ入り状態とされる。 On the other hand, the second switch Sw2 is arranged in front of the culm guide 400. The second switch Sw2 is turned on and off by the operator's pressing operation. The second switch Sw2 is always turned off and is turned on only while the operator is pressing.
　次に、図９を参照して、コンバイン１の手扱作業について説明する。なお、手扱作業は、コンバイン１が停止した状態、つまり、クローラ式走行装置２２・２２が停止し、フィードチェーン４１が停止している状態で行われる。 Next, the handling operation of the combine 1 will be described with reference to FIG. The handling operation is performed in a state where the combine 1 is stopped, that is, in a state where the crawler type traveling devices 22 and 22 are stopped and the feed chain 41 is stopped.
　作業者は、穀稈ガイド４００を上方へ回動させて、本体部４０１をフィードチェーン４１から離間させる。これにより、第一スイッチＳｗ１が切り状態に操作される。なお、この際、当初よりフィードチェーン４１は停止しているので、フィードチェーン４１は引き続き停止した状態となる。 The worker rotates the grain straw guide 400 upward to separate the main body 401 from the feed chain 41. As a result, the first switch Sw1 is operated to be turned off. At this time, since the feed chain 41 is stopped from the beginning, the feed chain 41 continues to be stopped.
　作業者は、穀稈ガイド４００を上方へ回動させる場合において、本体部４０１を直接操作することで、穀稈ガイド４００を上方へ回動させることができる。また、作業者は、穀稈ガイド４００を上方へ回動させる場合において、運転席９１に座った状態のままで穀稈ガイド操作レバー４０７を第二の位置に移動させることで、穀稈ガイド４００を上方へ回動させることができる。このように構成することにより、手扱作業開始以前に前もって運転席９１に座った状態で穀稈ガイド４００を上方へ回動させることができるのである。例えば、作業クラッチレバー９４が、「刈取切り・脱穀入り」のポジションに移動された場合に、穀稈ガイド操作レバー４０７を第二の位置に移動させることで、手扱作業時の穀稈ガイド４００を上方へ回動させる作業を確実に行うことができる。 The worker can rotate the culm guide 400 upward by directly operating the main body 401 when rotating the culm guide 400 upward. In addition, when the worker rotates the culm guide 400 upward, the worker moves the culm guide operating lever 407 to the second position while sitting in the driver's seat 91, so that the culm guide 400 is moved. Can be rotated upward. By comprising in this way, the grain guide 400 can be rotated upwards in the state which sat in the driver's seat 91 before the handling operation start beforehand. For example, when the work clutch lever 94 is moved to the position of “cutting and threshing”, the culm guide operation lever 407 is moved to the second position, so that the culm guide 400 during the handling operation is moved. It is possible to reliably perform the operation of rotating the upper part.
　次に、作業者は、刈り取った穀稈Ｇを所定の場所に置く。ここで所定の場所とは、穀稈ガイド４００を下方へ回動させた際に、案内部４０２によって穀稈Ｇをフィードチェーン４１に押し付けることができる空間である。 Next, the worker places the harvested corn G in a predetermined place. Here, the predetermined place is a space in which the culm G can be pressed against the feed chain 41 by the guide unit 402 when the culm guide 400 is rotated downward.
　その後、作業者は、穀稈ガイド４００を下方へ回動させて、本体部４０１をフィードチェーン４１に近接させる。これにより、第一スイッチＳｗ１が入り状態に切り換わる。ただし、制御装置８４は、第二スイッチＳｗ２が切り状態であることから、フィードチェーン停止機構１９３の切断を維持する。 After that, the worker rotates the culm guide 400 downward to bring the main body 401 close to the feed chain 41. Thereby, the first switch Sw1 is switched to the on state. However, the control device 84 keeps the feed chain stop mechanism 193 disconnected because the second switch Sw2 is in the OFF state.
　また、穀稈ガイド４００を下方へ回動させた状態における回動角度を角度センサ４０６によって検知する。 Also, the angle sensor 406 detects the rotation angle in the state where the grain straw guide 400 is rotated downward.
　そして、作業者は、第二スイッチＳｗ２を押して、入り状態に切り換える。このとき、制御装置８４は、第一スイッチＳｗ１と第二スイッチＳｗ２が共に入り状態となったことを受けて、フィードチェーン停止機構１９３を接続に切り換えて、フィードチェーン４１にエンジン８１の回転動力を伝達する。 Then, the operator presses the second switch Sw2 to switch to the on state. At this time, in response to the first switch Sw1 and the second switch Sw2 entering the state together, the control device 84 switches the feed chain stop mechanism 193 to the connection, and transmits the rotational power of the engine 81 to the feed chain 41. introduce.
　ここで、フィードチェーン停止機構１９３を接続に切り換えて、フィードチェーン４１にエンジン８１の回転動力を伝達する際に、モータ３１０を駆動することにより、フィードチェーン４１の回転速度の増速若しくは減速を行う。 Here, when the feed chain stop mechanism 193 is switched to connection and the rotational power of the engine 81 is transmitted to the feed chain 41, the rotational speed of the feed chain 41 is increased or decreased by driving the motor 310. .
　このような構成により、作業者は、一方の手で穀稈ガイド４００の操作レバー４０３を握り、他方の手で第二スイッチＳｗ２を操作することとなる。つまり、作業者の両手が塞がれて安全性が確保された状態でなければ手扱作業を行えないようにすることで、コンバイン１の手扱作業の安全性を向上している。 With this configuration, the operator holds the operation lever 403 of the cereal guide 400 with one hand and operates the second switch Sw2 with the other hand. That is, the safety of the handling operation of the combine 1 is improved by preventing the handling operation from being performed unless both hands of the worker are closed and the safety is ensured.
　また、作業者が穀稈ガイド４００を回動させた回動量に応じてモータ３１０を駆動することができる。詳細には、図２０（Ａ）に示すように、角度センサ４０６によって検知された回動角度に応じてモータ３１０の回転方向及び回転速度を制御するものである。例えば、穀稈ガイド４００の回動量が小さい（回動角度θが小さい）場合には、穀稈の量が多いものと判断して、フィードチェーン４１の回動速度を増速させるためにモータ３１０を正回転方向（図１５における矢印Ａ方向）に駆動させる。また、図２０（Ｂ）に示すように、穀稈ガイド４００の回動量が大きい（回動角度θが大きい）場合には、穀稈の量が少ないものと判断して、フィードチェーン４１の回動速度を減速させるためにモータ３１０を逆回転方向（図１５における矢印Ｂ方向）に駆動させる。 Also, the motor 310 can be driven according to the amount of rotation by which the worker has rotated the cereal guide 400. Specifically, as shown in FIG. 20A, the rotation direction and rotation speed of the motor 310 are controlled in accordance with the rotation angle detected by the angle sensor 406. For example, when the rotation amount of the cereal guide 400 is small (the rotation angle θ is small), it is determined that the amount of cereal is large, and the motor 310 is used to increase the rotation speed of the feed chain 41. Is driven in the forward rotation direction (arrow A direction in FIG. 15). Further, as shown in FIG. 20B, when the amount of rotation of the culm guide 400 is large (the rotation angle θ is large), it is determined that the amount of the culm is small and the rotation of the feed chain 41 is performed. In order to decelerate the moving speed, the motor 310 is driven in the reverse rotation direction (the direction of arrow B in FIG. 15).
　本実施形態のコンバイン１では、制御装置８４にフィードチェーン４１を強制的に駆動するための補助操作手段としての補助操作スイッチＳｗ３が接続されている。補助操作スイッチＳｗ３を操作することにより、制御装置８４は、フィードチェーン停止機構１９３及び刈取クラッチ機構８９に制御信号を送信して、その断接を制御する。 In the combine 1 of this embodiment, an auxiliary operation switch Sw3 as an auxiliary operation means for forcibly driving the feed chain 41 is connected to the control device 84. By operating the auxiliary operation switch Sw3, the control device 84 transmits a control signal to the feed chain stop mechanism 193 and the cutting clutch mechanism 89 to control the connection / disconnection thereof.
　本実施形態における、圃場操作スイッチＳｗ３の作動条件、刈取りクイックペダル９５の作動条件、注油スイッチ９６の作動条件については、上述のものと同様である。 In this embodiment, the operating condition of the field operation switch Sw3, the operating condition of the mowing quick pedal 95, and the operating condition of the lubrication switch 96 are the same as those described above.
　さらに、別の実施形態として、穀稈ガイドの回動軸を刈取部に設けた構成であっても良い。なお、本実施形態において、上述の実施形態と同一の符号を付した部材については当該実施形態における部材と同様の構成であるので説明を省略する。 Furthermore, as another embodiment, a configuration in which the rotation axis of the culm guide is provided in the reaping part may be used. In addition, in this embodiment, about the member which attached | subjected the code | symbol same as the above-mentioned embodiment, since it is the structure similar to the member in the said embodiment, description is abbreviate | omitted.
　図２１及び図２２に示すように、コンバイン１は、左側部に穀稈ガイド５００を備えている。穀稈ガイド５００は、穀稈を整列させてフィードチェーン４１へ案内するものである。穀稈ガイド５００は、本体部５０１と、案内部５０２と、操作レバー５０３と、を備える。 As shown in FIGS. 21 and 22, the combine 1 includes a cereal guide 500 on the left side. The culm guide 500 is for aligning the culm and guiding it to the feed chain 41. The cereal guide 500 includes a main body portion 501, a guide portion 502, and an operation lever 503.
　本体部５０１は、前端が回動軸５０４を介して機体に取り付けられ、回動軸５０４を中心としてフィードチェーン４１と近接した状態と、フィードチェーン４１から離間した状態との間で回動自在に構成される。本体部５０１の後端には操作レバー５０３が取り付けられている。作業者は、操作レバー５０３によって容易に穀稈ガイド５００を回動させることができる。また、本体部５０１の回動軸５０４よりも前方には回動板５０５が形成されている。つまり、回動板５０５は本体部５０１を回動させることに伴って、本体部５０１の回動と対称的に回動される。 The main body portion 501 is attached to the machine body at the front end via a rotation shaft 504, and is rotatable between a state close to the feed chain 41 around the rotation shaft 504 and a state separated from the feed chain 41. Composed. An operation lever 503 is attached to the rear end of the main body 501. The operator can easily rotate the culm guide 500 with the operation lever 503. A rotation plate 505 is formed in front of the rotation shaft 504 of the main body 501. That is, the rotation plate 505 is rotated symmetrically with the rotation of the main body 501 as the main body 501 is rotated.
　また、回動軸５０４には穀稈ガイド５００の回動角を検知する角度センサ４０６が設けられている。角度センサ４０６は、穀稈ガイド５００の本体部５０１の回動量を角度として検知するセンサであり、例えば、ポテンシオメータによって構成されている。 Also, the rotation shaft 504 is provided with an angle sensor 406 that detects the rotation angle of the cereal guide 500. The angle sensor 406 is a sensor that detects the amount of rotation of the main body portion 501 of the grain straw guide 500 as an angle, and is configured by, for example, a potentiometer.
　第一スイッチＳｗ１は、穀稈ガイド５００の前方であって、本体部５０１をフィードチェーン４１に近接させた状態で回動板５０５と当接可能な位置に配置されている。作業者は、穀稈ガイド５００を回動させて本体部５０１をフィードチェーン４１に近接させることで第一スイッチＳｗ１を入り状態とし、穀稈ガイド５００を回動させて本体部５０１をフィードチェーン４１から離間させることで第一スイッチＳｗ１を切り状態とし、その入り切りを切り換えることが可能である。 The first switch Sw1 is disposed in front of the cereal guide 500 and at a position where the main body 501 can be brought into contact with the rotating plate 505 in a state where the main body 501 is brought close to the feed chain 41. The worker turns the grain culm guide 500 to bring the main body part 501 close to the feed chain 41 to turn on the first switch Sw1, turns the grain culm guide 500 to turn the main body part 501 to the feed chain 41. The first switch Sw <b> 1 can be turned off by switching away from the first switch Sw <b> 1.
　他方、第二スイッチＳｗ２は、穀稈ガイド５００の後方であって、フィードチェーン４１の上方に配置されている。第二スイッチＳｗ２は、作業者の押圧操作によって入り切りが切り換えられる。なお、第二スイッチＳｗ２は、常時切り状態であり、作業者が押している間のみ入り状態とされる。 On the other hand, the second switch Sw2 is disposed behind the grain guide 500 and above the feed chain 41. The second switch Sw2 is turned on and off by the operator's pressing operation. The second switch Sw2 is always turned off and is turned on only while the operator is pressing.
　次に、図２２を参照して、コンバイン１の手扱作業について説明する。なお、手扱作業は、コンバイン１が停止した状態、つまり、クローラ式走行装置２２・２２が停止し、フィードチェーン４１が停止している状態で行われる。 Next, the handling operation of the combine 1 will be described with reference to FIG. The handling operation is performed in a state where the combine 1 is stopped, that is, in a state where the crawler type traveling devices 22 and 22 are stopped and the feed chain 41 is stopped.
　作業者は、穀稈ガイド５００を上方へ回動させて、本体部５０１をフィードチェーン４１から離間させる。これにより、第一スイッチＳｗ１が切り状態に操作される。なお、この際、当初よりフィードチェーン４１は停止しているので、フィードチェーン４１は引き続き停止した状態となる。 The worker rotates the grain straw guide 500 upward to separate the main body 501 from the feed chain 41. As a result, the first switch Sw1 is operated to be turned off. At this time, since the feed chain 41 is stopped from the beginning, the feed chain 41 continues to be stopped.
　作業者は、穀稈ガイド５００を上方へ回動させる場合において、本体部５０１を直接操作することで、穀稈ガイド５００を上方へ回動させることができる。また、作業者は、穀稈ガイド５００を上方へ回動させる場合において、運転席９１に座った状態のままで穀稈ガイド操作レバー９７を第二の位置に移動させることで、穀稈ガイド５００を上方へ回動させることができる。このように構成することにより、手扱作業開始以前に前もって運転席９１に座った状態で穀稈ガイド５００を上方へ回動させることができるのである。 The worker can rotate the culm guide 500 upward by directly operating the main body 501 when rotating the culm guide 500 upward. In addition, when the worker rotates the culm guide 500 upward, the culm guide guide lever 500 is moved to the second position while sitting on the driver's seat 91, so that the culm guide 500 is moved. Can be rotated upward. By comprising in this way, the grain guide 500 can be rotated upwards in the state which sat in the driver's seat 91 beforehand before the handling work start.
　次に、作業者は、刈り取った穀稈Ｇを所定の場所に置く。ここで所定の場所とは、穀稈ガイド５００を下方へ回動させた際に、案内部５０２によって穀稈Ｇをフィードチェーン４１に押し付けることができる空間である。 Next, the worker places the harvested corn G in a predetermined place. Here, the predetermined place is a space in which the culm G can be pressed against the feed chain 41 by the guide unit 502 when the culm guide 500 is rotated downward.
　その後、作業者は、穀稈ガイド５００を下方へ回動させて、本体部５０１をフィードチェーン４１に近接させる。これにより、第一スイッチＳｗ１が入り状態に切り換わる。ただし、制御装置８４は、第二スイッチＳｗ２が切り状態であることから、フィードチェーン停止機構１９３の切断を維持する。 After that, the operator rotates the culm guide 500 downward to bring the main body 501 close to the feed chain 41. Thereby, the first switch Sw1 is switched to the on state. However, the control device 84 keeps the feed chain stop mechanism 193 disconnected because the second switch Sw2 is in the OFF state.
　また、穀稈ガイド５００を下方へ回動させた状態における回動角度を角度センサ４０６によって検知する。 In addition, the angle sensor 406 detects a rotation angle in a state where the grain straw guide 500 is rotated downward.
　本発明は、手扱作業を実施可能なコンバインに利用可能である。 The present invention can be used for a combine capable of performing a handling operation.
　１：コンバイン、２：走行部、３：刈取部、４：脱穀部、９：操縦部、４１：フィードチェーン、４２：扱銅、８１：エンジン、８２：カウンタケース、８３：クラッチ機構、８４：制御装置、９３：主変速レバー、９４：作業クラッチレバー、９５：刈取クイックペダル、Ｓｗ３：補助操作スイッチ 1: Combine, 2: Traveling part, 3: Cutting part, 4: Threshing part, 9: Steering part, 41: Feed chain, 42: Copper handling, 81: Engine, 82: Counter case, 83: Clutch mechanism, 84: Control device, 93: main transmission lever, 94: work clutch lever, 95: mowing quick pedal, Sw3: auxiliary operation switch

Claims (4)

  1. 　操縦部に脱穀部を駆動操作する操作手段を設け、前記操作手段の入り操作と機体が走行状態であることを条件に、前記脱穀部の脱穀装置とフィードチェーンの駆動を許可し、前記機体の停止を検出した場合に、前記フィードチェーンを停止させるコンバインにおいて、
    　前記操縦部に設けられる操作具に前記フィードチェーンを駆動する補助操作手段を設け、前記補助操作手段を入り操作することにより、前記停止されたフィードチェーンを駆動させることを特徴とするコンバイン。     An operating means for driving the threshing part is provided in the control part, and the threshing device and the feed chain of the threshing part are allowed to be driven on the condition that the operation operation of the operating means and the body are in a running state. In a combine that stops the feed chain when a stop is detected,
    An auxiliary operating means for driving the feed chain is provided in an operating tool provided in the control unit, and the stopped feed chain is driven by entering and operating the auxiliary operating means.
  2. 　前記補助操作手段を主変速レバーに設けた請求項１に記載のコンバイン。 The combine according to claim 1, wherein the auxiliary operation means is provided on a main transmission lever.
  3. 　前記補助操作手段によるフィードチェーン駆動時間に制限を設けた請求項１又は２に記載のコンバイン。 The combine according to claim 1 or 2, wherein a limit is set for a feed chain driving time by the auxiliary operation means.
  4. 　前記補助操作手段によるフィードチェーン駆動速度を機体の車速と同調させた請求項１から３の何れか一項に記載のコンバイン。 The combine according to any one of claims 1 to 3, wherein a feed chain drive speed by the auxiliary operation means is synchronized with a vehicle speed of the airframe.
PCT/JP2017/016831 2016-04-28 2017-04-27 Combine WO2017188402A1 (en)

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