JP2017099315A - Harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a harvester in which stop operation can be made instantly by a switch capable of stopping a working unit in a lump, and a gear shift lever is disposed so that the switching operation may not interfere during forward travel.SOLUTION: A harvester is characterized by: providing a working unit comprising a base cutter 3, a side cutter 16, a top cutter 17, a pre-transport device 4, a post-transport device 5, a chopping device 6 and a sorting apparatus 7 in a machine body frame 30; also, providing a steering unit 9 in a front part of the machine body frame 30; and disposing a driver's seat 40 in the steering unit 9 and disposing a main gear shift lever 90 in the side of the driver's seat 40. The main gear shift lever 90 can be shifted along a lever guide 90a for guiding the turning to the longitudinal direction in the forward side and reverse side. A working unit main switch 85 for stopping the working unit in a lump is provided in the outside of the rear side from a neutral position 90c of the lever guide 90a.SELECTED DRAWING: Figure 8

Description

  The present invention relates to an operation unit of a harvester, and more particularly, to a configuration in which an operation switch is disposed in the vicinity of a shift lever of the harvester.

  Conventionally, a handle column is erected in front of the driver's seat, a handle is attached to the upper part of the handle column, an operation column is disposed on the side of the driver's seat, a shift lever is mounted on the operation column, and the shift lever A reel raising / lowering switch and a mowing unit raising / lowering switch are provided at the grip portion of the shift lever, and a volume switch for setting the reel height and a volume for setting the reel rotation speed are provided on the side of the driver side of the forward lever guide of the shift lever. A harvesting machine in which a switch is arranged and a mowing clutch lever is arranged behind the shift lever is known (see, for example, Patent Document 1).

JP 2001-238519 A

However, in the patent document technique, when a clogging or the like occurs and it is desired to stop the operation, the mowing clutch lever is operated to the “off” side. At this time, the operator releases the hand holding the steering wheel or the hand holding the speed change lever and moves the hand to the cutting clutch lever to operate it. End up.
In addition, when adjusting the volume switch for setting the reel rotation speed for setting the rotation speed of the scraping reel in synchronization with the vehicle speed while cutting, the speed change lever is rotated forward. , Sometimes it got in the way.
Therefore, a switch that can stop the working parts at once is provided near the main gearshift lever so that it can be stopped instantaneously, and the harvester is arranged so that the main gearshift lever does not interfere with the switch operation when traveling forward. And

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
That is, according to the first aspect of the present invention, the machine frame is provided with a working unit including a cutting device for cutting a crop, a transfer device for transferring the harvested crop backward, a cutting device for cutting the transferred crop, and the like. In a harvesting machine provided with a control part at the front of the vehicle, a driver's seat in the control part, and a main speed change lever arranged on the side of the driver's seat, the main speed change lever rotates forward and backward in the front-rear direction. Shifting is possible along a lever guide that guides the movement, and a working unit main switch for stopping the working unit collectively is provided outside the neutral position of the lever guide.

According to a second aspect of the present invention, the working unit is further provided with a sorting device that sorts unnecessary portions of the crop after shredding with wind power, and the sorting device is configured to be stopped by operation of the working unit main switch. Is.
According to a third aspect of the present invention, the working unit main switch is disposed on an inclined surface that is lowered toward the driver's seat.

  According to a fourth aspect of the present invention, at least the auxiliary transmission changeover switch, the parking brake switch, and the cutting operation unit up / down switch are arranged on the grip of the main transmission lever.

As effects of the present invention, the following effects can be obtained.
In other words, the work section can be stopped all at once by operating a single switch, and when the clogging or the like occurs, the work section is stopped instantaneously so that the damage to the machine and the harvest is minimized. Can be. Further, the working unit main switch is not obstructed by the main speed change lever during forward work, and the hand moving distance is short and can be operated immediately. At the time of non-working reverse movement, it is located to the side of the main speed change lever and becomes a position where the operation is obstructed, so that it cannot be operated unnecessarily.

The side view which showed the whole structure of the sugarcane harvesting machine. The top view which showed the whole structure of the sugarcane harvesting machine. Hydraulic circuit diagram. The upper perspective view of a control part. The left view of a control part. The right view of a control part. The top view of a display panel. The perspective view of a control arm. The perspective view which shows the front part of a cabin. The figure which shows arrangement | positioning of the monitor inside a cabin.

First, the whole structure of the Example which used the sugarcane harvester 1 as the harvester is demonstrated from FIG. 1, FIG. In the description, the front-rear direction is defined with the F direction as the front.
The sugarcane harvesting machine 1 supports the body frame 30 on the crawler type traveling device 10 as a traveling device, and serves as a traveling unit. A pair of left and right crop dividers 2 are disposed at the front of the body frame 30 via the lifting link mechanism 12. The traveling device may be a wheel type. The crop divider 2 is rotatably supported by a pair of left and right augers 2b and 2b disposed substantially parallel to the weed frame 2a at the front portion of the weed frame 2a which is disposed to be inclined backward. It is made to drive by the hydraulic motor 2c provided in the upper part. In this way, it is pulled into the plane while causing sugarcane. Side cutters 16 and 16 are provided above the pair of left and right crop dividers 2 and are driven by a hydraulic motor 184 (FIG. 3). In this way, the side cutter 16 cuts the upper part of the ridges that are intertwined when scraped by the pair of left and right crop dividers 2.

In the lifting link mechanism 12, a pair of left and right upper links 12a and lower links 12b are supported in a vertically rotatable manner between a cutting part mounting frame 34 provided at the front end of the machine frame 30 and a weeding frame 2a. Hydraulic cylinders 12c and 12c are interposed between the cutting part mounting frame 34 and the lower links 12b and 12b, and the crop divider 2 can be raised and lowered by driving the hydraulic cylinders 12c to extend and contract.
Moreover, the top cutter 17 protrudes ahead from the upper part of the cutting part attachment frame 34, and arrange | positions the upper part of sugarcane so that cutting is possible. The top cutter 17 can be moved up and down by a hydraulic cylinder 205 (FIG. 3).

  Behind the crop divider 2, a take-in rotor 13, a base cutter 3, and a front transport device 4 are supported by a front transport frame 14. A pair of left and right front transport frames 14 are provided, and a rear portion thereof is pivotally supported by a machine frame 30 at a front end position of a rear transport device 5 described later so as to be rotatable up and down. A hydraulic cylinder is interposed between the front portion of the front conveyance frame 14 and the body frame 30, and the height of the base cutter 3 and the take-in rotor 13 is adjusted by expanding and contracting the hydraulic cylinder 196 (FIG. 3). It is possible.

The base cutter 3 is fixed to the outer periphery of the left and right support cylinders 3a and 3a that hang downward from the front portion of the front conveyance frame 14 and the support disk fixed to the lower ends of the support cylinders 3a and 3a. Of the cutting blades 3b, 3b,..., A rod-shaped spiral 3c, 3c fixed on the support disk, and a hydraulic motor 187 (FIG. 3) for rotating the cutting blade 3b and the spiral 3c.
The scraping rotor 13 is composed of a rotation shaft that has an axial center in the left-right direction at the front ends of the left and right front transport frames 14 and is rotatably supported, and a blade body fixed on the rotation shaft. The rotation shaft is driven to rotate by a hydraulic motor 187.

  The front conveying device 4 has an axial center in the left-right direction, and a plurality of pairs of upper and lower feed rollers 4a, 4a are arranged in the front-rear direction. The upper roller shaft is supported by a chain so as to be able to transmit power, and the lower roller shaft is configured so as to be able to transmit power by a gear, and each is connected to a hydraulic motor 186 (FIG. 3).

  Thus, the crop divider 2, the side cutter 16, the base cutter 3, and the top cutter 17 serving as a cutting device are arranged in front of the traveling unit so as to protrude forward, and the weeds are cropped by the crop divider 2 to the upper part of the sugarcane cocoon. And the left and right sides are cut, scraped by the rotation of the take-up rotor 13, the stock is cut by the rotation of the cutting blades 3b, 3b of the base cutter 3, and at the same time, the lower end of the heel (root) by the rotation of the spirals 3c, 3c. ) Is jumped up. The sugarcane that has been bounced up is drawn from the base into the front conveying device 4 disposed immediately after that, and is sent obliquely rearward and upward by the feed rollers 4 a, 4 a... Of the front conveying device 4.

  The rear part of the front conveying device 4 is located at the front lower part of the rear conveying device 5. The post-conveying device 5 is composed of a roller-type conveyor that feeds the upper side and the lower side at an appropriate interval to the rear. Thus, the sugarcane cut by the base cutter 3 is sent rearward by the front conveying device 4, inherited by the rear conveying device 5, and conveyed obliquely rearward and upward.

  A chopping device 6 is disposed at the rear of the rear conveying device 5. The chopping device 6 includes a cutter and a jump roller. The cutter has a blade blade fixed on a pair of upper and lower cutter shafts having an axial center in the left-right direction, and is chopped when the sugar cane passes between the upper and lower blade blades rotating. The jumping roller fixes a jumping blade on a rotating shaft having a pair of upper and lower left and right axial centers, and is disposed above the cutter. And by rotating the upper and lower shafts in directions opposite to each other, the chopped sugar cane is forced to jump up and backward. A diffusion rotor is disposed at the rear of the spring-out roller. The diffusion rotor allows sugarcane stems and leaves after being shredded to diffuse upward. In addition, it can also be set as the structure directly thrown into the wind selection apparatus 7 mentioned later, after cut | disconnecting with a cutter, without providing a jump roller and a spreading | diffusion rotor.

  The wind selection device 7 includes a blower case 7a provided at the upper rear portion of the chopping device 6 and a blower 7b accommodated in the blower case 7a. The lower and upper sides of the blower case 7a are opened, the lower part of the blower case 7a is communicated with the chopping device 6, and the upper side serves as a discharge port for leaves and dust. The blower case 7a is rotatable about the vertical axis, and the blower case 7a is turned by operating the hydraulic motor 189 (FIG. 3) so that the discharge direction can be changed. The blower 7b is housed in the blower case 7a with the vertical direction as an axis, and when the blower 7b is rotationally driven by the hydraulic motor 182, a high-speed air flow from the bottom to the top is generated and diffused by the rotation of the diffusion rotor. The chopped leaves and dust are sucked upward so that they can be discharged to the side or rear, and the heavy stem falls onto a hopper 18 provided at the lower part of the lower discharge conveyor 8.

  The lower part of the discharge conveyor 8 is supported on a swivel base 20 provided at the rear part of the body frame 30, and the discharge conveyor 8 is supported on the swivel base 20 so as to be turnable in the left-right direction. The discharge conveyor 8 can be rotated left and right by operating the hydraulic motor 201, and the discharge direction can be changed. At the time of harvesting by the sugarcane harvesting machine 1, as shown in FIG. 2, the transport vehicle 11 runs side by side, and the hydraulic motor 201 is operated so that the discharge unit of the discharge conveyor 8 faces the storage unit 11 a of the transport vehicle 11. The direction is changed, and the harvested product is discharged to the transport vehicle 11 while performing the cutting operation.

In addition, a deflector 15 is provided at the outlet of the upper portion of the discharge conveyor 8, and the deflector 15 is configured to change the angle by operating a hydraulic cylinder 199 so that the dropping direction can be changed. The operation of the deflector 15 is not limited to a hydraulic cylinder, but can be operated by an electric cylinder or a motor, and is not limited.
However, in the present embodiment, the discharge conveyor 8 is attached to the rear part of the machine body frame 30, but the storage bag is attached to the rear part of the machine body frame 30, and the sugar cane falling from the wind-selecting device 7 is stored in the storage bag. You can also

  Further, an engine 50 is disposed above the rear part of the front conveying device 4 at the front and rear center of the body frame 30. The engine 50 is disposed so that the crankshaft is in the left-right direction, and is cooled at one end of the crankshaft. A fan is provided so that the intercooler 64 and the radiator 65 can be cooled, and a plurality of hydraulic pumps 66 are linked and driven to the other end of the crankshaft.

  The hydraulic pump 66 is connected to a hydraulic actuator such as a hydraulic motor and a hydraulic cylinder for traveling, driving a working machine, and moving up and down. Specifically, as shown in FIG. 3, the variable hydraulic pumps 161L and 161R are respectively connected to the traveling hydraulic motors 197L and 197R of the crawler type traveling device 10, and the oil feeding direction and the amount of oil feeding of the variable hydraulic pumps 161L and 161R. The travel speed can be changed and the vehicle can go straight or turn. The movable swash plate for changing the oil feeding direction and the oil feeding amount of the variable hydraulic pumps 161L and 161R is linked to a main transmission lever 90 and a steering handle 41, which will be described later.

  The hydraulic pump 162 is connected to a hydraulic motor 182 that drives the blower 7b of the wind sorting device 7 via an electromagnetic valve 172, and the hydraulic pump 163 is connected to a hydraulic motor 2c that drives the crop divider 2 via an electromagnetic valve 173. Yes. The hydraulic pump 164 is connected to a hydraulic motor 184 that drives the side cutter 16 via an electromagnetic valve 174. The hydraulic pump 165 is connected to electromagnetic valves 175 and 176, the electromagnetic valve 175 is connected to a hydraulic motor 185 that drives the chopping device 6, and the electromagnetic valve 176 is connected to a hydraulic motor 186 that drives the front conveying device 4 and the rear conveying device 5. It is connected. The hydraulic pump 166 is connected to a hydraulic motor 187 that drives the base cutter 3 via an electromagnetic valve 177. A hydraulic circuit for operating the hydraulic motor 187 communicates with a hydraulic gauge 84, and the hydraulic gauge 84 is provided on the dashboard 42 so that the operator can check the hydraulic pressure. The hydraulic pump 168 is connected to a hydraulic motor 188 that drives the discharge conveyor 8 via an electromagnetic valve 178. The hydraulic pump 169 is connected to a hydraulic motor 203 that drives the top cutter 17 via an electromagnetic valve 202.

  The discharge side of the hydraulic pump 167 is connected in parallel with the electromagnetic valves 179, 190, 191, 192, 193, 194, 195, and 204, and the secondary side of the electromagnetic valve 179 is a hydraulic motor 189 that rotates the wind selection device 7 left and right. Connected with. The secondary side of the electromagnetic valve 190 is connected to a hydraulic cylinder 196 that drives the base cutter 3 to move up and down. The secondary side of the electromagnetic valve 191 is connected to a hydraulic cylinder 12c that drives the left side of the crop divider 2 up and down. The secondary side of the electromagnetic valve 192 is connected to a hydraulic cylinder 12c that drives the right side of the crop divider 2 up and down. The secondary side of the electromagnetic valve 193 is connected to a hydraulic cylinder 199 that rotates the deflector. The secondary side of the electromagnetic valve 194 is connected to a hydraulic cylinder 200 that drives the discharge conveyor 8 up and down. The secondary side of the electromagnetic valve 204 is connected to a hydraulic cylinder 205 that drives the top cutter 17 to move up and down. The secondary side of the electromagnetic valve 195 is connected to a hydraulic motor 201 that turns the discharge conveyor 8 left and right.

The electromagnetic valves 172, 173, 174, 175, 176, 177, 178, 179, 190, 191, 192, 193, 194, 195, 202, and 204 are the operating devices provided in the control section 9 in the cabin 19. It is connected.
That is, the control unit 9 is disposed on the body frame 30 in front of the engine 50, and the control unit 9 is covered with the cabin 19. The cabin 19 is disposed at the center of the front and right and left of the traveling unit, and includes doors on the left and right sides so that passengers can get on and off from both sides.

In the cabin 19, as shown in FIGS. 4, 5, and 6, a dashboard 42 is erected on the front left and right center of the floor 44 fixed on the front portion of the body frame 30, A steering handle 41 is provided on the dashboard 42. As shown in FIG. 10, a back monitor 29 is provided above the steering handle 41, that is, above the left and right center in the cabin 19. The back monitor 29 is provided at the rear part of the discharge conveyor 8 and can display an image from a camera for photographing the rear. The image from the back monitor 29 can see the state of sugarcane discharged from the discharge conveyor 8 at the time of work, and can see the advancing direction backward when traveling backward. Furthermore, it can also be used as a monitor of a personal computer, and it is possible to view weather information and news information distributed via the Internet, and work setting information. By arranging the back monitor 29 in the left and right center information, the back monitor 29 can be seen without greatly diverting the line of sight even during the clockwise harvesting operation or the counterclockwise harvesting operation. .
Behind the dashboard 42, a driver's seat 40 is mounted on a support 45 serving as a seat bracket. That is, the support body 45 is fixed on the rear part of the floor 44, and the control arm 43 including the operation device is disposed on one side (right side) of the support body 45.

  The driver's seat 40 is composed of a seat 40a that supports the operator's buttocks and a backrest 40b that supports the operator's back and supports the back of the operator. (Elbow rests) 46 and 46 are attached so as to be pivotable up and down and project in the front horizontal direction. The driver's seat 40 is slidably mounted on a rail in the front-rear direction provided on the support body 45, and can be fixed at an arbitrary position by a fixture. Thus, the driver's seat 40 can be adjusted in the front-rear position according to the physique of the operator. That is, the positional relationship between the steering handle 41 and the control arm 43 can be adjusted.

  An operation panel 28 is arranged at the upper center of the dashboard 42, and the steering handle 41 is positioned on the outer periphery of the operation panel 28. In other words, the operation panel 28 is disposed at the center of the steering handle 41. The operation panel 28 includes a liquid crystal monitor and a switch or a touch panel, and can display the state of the engine 50, the state of work, an alarm monitor, and the like, and this display state can be selected by a switch or touch operation.

  As shown in FIG. 7, the operation panel 28 is provided with an engine speed display portion 141, a traveling speed display portion 142, and a sub shift speed display portion 143 at the center. A fuel gauge 144 is disposed on the side of the engine speed display unit 141, and an alarm display unit 145, an hour meter display unit 146, a time display unit 147, and an operation state of the discharge conveyor are displayed on the rear portion (driver's seat 40 side) of the operation panel 28. (A discharge conveyor on / off display unit 148 and a conveyor direction display unit 149) and a blower direction display unit 150 are provided. However, these arrangement positions are not limited, and the alarm display unit 145 can be arranged in the front part.

  The engine speed display unit 141 displays the scale as the engine speed increases, but the pointer may be rotated or displayed digitally. The traveling speed display unit 142 displays the hourly speed digitally, but may display it with a pointer. Although the auxiliary gear stage display unit 143 displays the height (“H” “L”), it may display the number of stages. Although the fuel gauge 144 displays the amount of fuel with respect to the full tank on a scale, it may be displayed with a pointer. The alarm display unit 145 displays engine oil pressure abnormality, water temperature abnormality, and the like in words, but may display an error code or the like. The hour meter display unit 146 displays the operation time digitally. The time display unit 147 displays the current time in digital form, but may display it in analog form.

  The discharge conveyor on / off display section 148 as the discharge conveyor operation state display section displays “ON” when the discharge conveyor 8 is operating, and “OFF” when it is stopped. However, the display method is not limited to whether the lamp is turned on or off. That is, as shown in FIG. 4, the discharge conveyor 8 is turned on and off at the front portion of the floor 44 and a discharge conveyor on / off pedal 80 is provided on the right side of the dashboard 42. When the cut pedal 80 is stepped on, the electromagnetic valve 178 is switched and pressure oil is fed to the hydraulic motor 188 to drive the discharge conveyor 8. When the discharge conveyor on / off pedal 80 is once again depressed, the electromagnetic valve 178 is switched to stop oil feeding, and the operation of the discharge conveyor 8 is stopped. When the discharge conveyor on / off pedal 80 is depressed to drive the discharge conveyor 8, “ON” is displayed on the discharge conveyor ON / OFF display portion 148, and “OFF” is displayed when the discharge conveyor is stopped.

  Thus, the cutting device is arranged at the front end of the traveling unit, the control unit 9 is provided on the front part of the traveling unit, and the discharge conveyor 8 for discharging the harvested crop (sugar cane) is arranged at the rear of the traveling unit. In the sugarcane harvesting machine 1 for feeding the harvested harvested product into the storage unit 11a of the transporting vehicle 11 running side by side from the discharge conveyor 8, an operation panel 28 is disposed in front of a driver seat 40 provided in the control unit 9. Since the operation panel 28 is provided with a display section for the state of the discharge conveyor 8 for displaying the operation state of the discharge conveyor 8, the operation of the discharge conveyor 8 disposed immediately behind the operator operating in the cabin 19 is performed. Although direct visual observation is difficult, it can be easily confirmed with the operation panel 28 arranged at the center of the steering handle 41. The discharge conveyor on / off display unit 148 as the display unit of the state of the discharge conveyor 8 displays the on / off state of the discharge conveyor 8 so that the operating state of the discharge conveyor 8 can be easily recognized. It can be prevented that the conveyor 8 is not operated and is clogged by the transport device (the front transport device 4 and the rear transport device 5) or the chopping device 6. It is also possible to prevent the discharge conveyor 8 from being operated during non-working.

  Conveyor turning pedals 81 </ b> L and 81 </ b> R for turning the discharge conveyor 8 to the left and right are disposed on the left side of the dashboard 42 at the front portion of the floor 44. When the conveyor turning pedal 81L or the conveyor turning pedal 81R is depressed, the electromagnetic valve 195 is switched to drive the hydraulic motor 201 clockwise or counterclockwise, and the discharge conveyor 8 is rotated clockwise or counterclockwise. At this time, the discharge conveyor direction display unit 149 displays which direction the discharge direction of the discharge conveyor 8 is oriented. The direction of the discharge conveyor 8 is detected by an angle sensor provided on the turntable 20, and the direction (angle) of the discharge conveyor 8 is changed by the discharge conveyor direction display unit 149 according to the angle. However, the display method is not limited.

  As described above, the operation panel 28 is provided with the discharge conveyor direction display unit 149 for displaying the direction of the discharge conveyor 8 as the discharge conveyor operation state display unit, so that the discharge direction of the discharge conveyor 8 can be easily recognized and transported. It is possible to prevent the vehicle 11 from being discharged in a direction in which the vehicle 11 does not exist, and not to discharge in an unintended direction.

The blower direction display unit 150 displays the discharge direction of the blower case 7a of the wind selector 7 with an arrow. However, it may be displayed as an illustration or the like, and the display method is not limited. The wind selector 7 can be turned left and right by a blower turning switch 97 provided on the control arm 43. When the blower turning switch 97 is operated, the electromagnetic valve 179 is switched and the hydraulic motor 189 is driven to rotate. The rotational position (discharge direction) of the wind selector 7 is detected by an angle sensor provided in the rotating unit and displayed on the blower direction display unit 150.
As described above, the operation panel 28 is provided with the blower direction display unit 150 for displaying the discharge direction of the wind selection device 7, so that it is possible to easily recognize the discharge direction of the wind selection device 7 which is difficult to understand in the control unit 9. It is possible to prevent discharge in the wrong direction.

  As shown in FIG. 4, a top cutter up / down switch 82 and a horn switch 83 are provided on the inner side of the wheel of the steering handle 41. In the present embodiment, a top cutter up / down switch 82 is provided on the inner right front side that does not become an obstacle when the steering wheel 41 is gripped by the hand, and a horn switch 83 is provided on the inner left side. When the top cutter up / down switch 82 is operated to the up side or down side, the electromagnetic valve 204 is switched, the hydraulic cylinder 205 is expanded or contracted, the top cutter 17 is raised or lowered, and the height at which the upper end of the ridge is cut is adjusted. can do.

A hydraulic gauge 84 that displays the hydraulic pressure when the base cutter 3 is operated is provided at the front of the upper surface of the dashboard 42 so that the operating state can be confirmed.
An accelerator lever 47 that adjusts the number of revolutions of the engine 50 is provided on the right rear part of the upper surface of the dashboard 42, and a working part forward / reverse lever 48 is provided on the left side. Further, a key switch 49 is provided on the right side surface of the dashboard 42 to put the electrical component on standby and start the engine 50.

The working part forward / reverse lever 48 is capable of forward or reverse rotation of the crop divider 2, the base cutter 3, the front transport device 4, and the rear transport device 5. That is, a switch is provided at the rotation base of the working unit forward / reverse lever 48. For example, when the working unit forward / reverse lever 48 is rotated forward, the electromagnetic valves 173, 176, and 177 are switched to switch the hydraulic motor 2c.・ Drive 2c, 186, and 187 in the normal direction. On the contrary, in the state where the working part forward / reverse lever 48 is rotated backward, the electromagnetic valves 173, 176, 177 are switched in the reverse direction to drive the hydraulic motors 2c, 2c, 186, 187 in reverse.
In this way, during normal work, the forward rotation drive is used, and when clogging occurs in any place of the crop divider 2, the base cutter 3, the front transport device 4 and the rear transport device 5, or when performing maintenance, etc. The working part forward / reverse lever 48 is operated in the reverse direction to reverse the direction so that clogging can be easily removed and maintenance can be easily performed.

As shown in FIG. 6, the accelerator lever 47 is disposed on the same plane (substantially the same height position) as the mounting surface to which the main transmission lever 90 and the operation switch provided on the control arm 43 are attached, as shown in FIG. Thus, the accelerator lever 47 is disposed between the steering handle 41 and the main transmission lever 90 in the left-right direction. When the accelerator lever 47 is set at a position lower than the steering handle 41 and the grip 90b of the main transmission lever 90 at the start of the operation, the accelerator lever 47 that is hardly operated thereafter is mainly operated during the operation. The steering handle 41 and the main speed change lever 90 are arranged so as not to interfere with the operation.
As described above, the main transmission lever 90 is provided on the front portion of the control arm 43, and the accelerator lever 47 is disposed on the dashboard 42 that supports the steering handle 41. Since it is arranged between the speed change lever 90 and the steering handle 41, the accelerator lever 47 and the main speed change lever 90 do not get in the way when the steering handle 41 is operated, and the accelerator lever 47 lowers the hand holding the steering handle 41 downward. Easy to operate by simply moving to. The main speed change lever 90 is disposed on the front part of the control arm 43, and the height of the grip 90b on the upper part thereof is substantially the same as the height of the rear part of the steering handle 41. It becomes easy to operate simply by moving the hand holding the handle 41 to the right side, and the operability is improved.

The control arm 43 is supported on the right side surface of the support body 45 so as to be vertically rotatable, and extends forward and upward. The control arm 43 is configured so that the mounting surface of the operating device can be rotated to an operation position in a substantially horizontal direction and a storage position rotated upward, and can be held at each position. As shown in FIG. 6, the front end position of the control arm 43 in the storage position rotated upward is positioned behind the center in the front-rear direction of the seat 40 a of the driver seat 40. Since the driver's seat 40 in the storage position of the control arm 43 is positioned rearward from the center of the seat 40a with the rearmost position adjusted, when the driver's seat 40 is adjusted forward, the control arm 43 is Furthermore, it is located behind the seat 40a.
Thus, in the state of the operation position with the control arm 43 lowered, even when the driver's seat 40 is moved back and forth and adjusted, the positional relationship between the steering handle 41 and the operation device on the control arm 43 does not change. In the storage position in which the ring does not deteriorate and the control arm 43 is raised upward, the space on the right side of the driver's seat 40 is enlarged, and the control arm 43 is placed on the floor 44 between the steering handle 41 and the driver's seat 40. It is possible to easily move and get on and off the cabin 19 without being obstructed.

  On the control arm 43, a main speed change lever 90 and an operation switch are arranged as an operation device. It is arranged to be movable. The lever guide 90a has a substantially center position in the front-rear direction as a neutral position 90c. By rotating the main transmission lever 90 forward from the neutral position 90c, the lever guide 90a can be accelerated in the forward direction to be continuously variable, and can rotate backward. By accelerating in the reverse direction, continuously variable transmission is possible.

  As shown in FIGS. 6 and 8, the main transmission lever 90 disposed on the front portion of the control arm 43 is formed with a grip 90b at the top, and a crop divider serving as a working portion is formed on the front surface of the grip 90b. 2, a cutting operation unit up / down switch 91 for collectively raising / lowering the base cutter 3 and the front conveying device 4 is provided. By operating the mowing operation part up / down switch 91, the electromagnetic valves 190, 191 and 192 are simultaneously switched, and the hydraulic cylinders 196, 12c and 12c are moved up and down simultaneously. The mowing operation unit up / down switch 91 is a seesaw switch, and is a switch that moves up when the center of the top and bottom is turned upward in the neutral position, moves down when turned down, and returns to neutral when the operating force is released.

An auxiliary transmission changeover switch 92 is provided on the upper left side of the grip 90b. Each time the sub-shift selector switch 92 is pressed, the high speed and the low speed are switched, and at the same time, the display on the sub-speed stage display portion 143 of the operation panel 28 is also switched.
A base cutter up / down switch 93 is disposed below the auxiliary transmission changeover switch 92 on the left side of the grip 90b. By operating the base cutter up / down switch 93, the electromagnetic valve 190 is switched to expand or contract the hydraulic cylinder 196 so that the height of the base cutter 3 can be arbitrarily changed. That is, the cutting height of the lower part of the heel can be changed.
A parking brake switch 94 is disposed on the upper right side of the grip 90b. The parking brake is activated by pressing the parking brake switch 94, and is released by pressing it again.

  Thus, the grip 90b of the main transmission lever 90 is provided with at least the auxiliary transmission changeover switch 92, the parking brake switch 94, and the cutting operation unit up / down switch 91, so that while holding the main transmission lever 90 with the right hand, the middle finger of the right hand The chopping operation unit up / down switch 91 can be operated with the thumb, and the auxiliary transmission changeover switch 92 and the base cutter up / down switch 93 can be operated with the thumb. Further, when the vehicle is stopped, the parking brake switch 94 can be operated, and the switches are gathered and arranged so that a plurality of operations can be performed by the operation of the finger, thereby improving the operability.

The control arm 43 is provided with a mounting surface on which an operating device is arranged. In this embodiment, the operating device is a main transmission lever 90, a working unit main switch 85, a crop divider left up / down switch 86, a crop divider right up / down switch 87, a top cutter switch 88, a side cutter switch 89, a deflector up / down switch 95, a discharge conveyor. An up / down switch 96, a blower swivel switch 97, and a blower switch 98 are arranged on the control arm 43 so that the operation devices can be efficiently operated.
As shown in FIG. 4, the mounting surface includes a front mounting surface 43a, a rear mounting surface 43b, and a side mounting surface 43c. As shown in FIG. 6, the mounting surface is disposed at a position lower than the upper surface of the armrest 46, and when the operator's arm is placed on the armrest 46, it is difficult to touch the switches on the mounting surface. As a configuration, it is difficult for erroneous operations to occur.

  The front mounting surface 43a is provided with a horizontal surface on the left side, an inclined surface that is lowered inward in the left-right direction on the right side, a lever guide 90a of the main transmission lever 90 is formed on the horizontal surface, and in order from the front on the inclined surface, A working unit main switch 85, a crop divider left up / down switch 86, and a crop divider right up / down switch 87 are provided. By making the right side of the front mounting surface 43a an inclined surface, the working unit main switch 85, the crop divider left / upper switch 86, and the crop divider right / upper switch 87 can be easily seen and operated.

The working unit main switch 85 is a switch that can collectively stop the working unit. As the working unit, the crop divider 2, the base cutter 3, the front conveying device 4, the rear conveying device 5, the chopping device 6, wind selection, and the like. The apparatus 7, the discharge conveyor 8, the side cutter 16, and the top cutter 17. However, the device to be stopped by the working unit main switch 85 is only required to stop at least the base cutter 3, the front transport device 4, and the rear transport device 5, and the other devices can be stopped according to the specification, the user, and the like. be able to.
The working unit main switch 85 can be held in the on position by rotating while being pushed downward. In this state, when the working unit main switch 85 is pushed downward, it is raised and turned off. Therefore, when clogging, abnormal noise, or the like occurs during work, the work part main switch 85 is pressed to stop the work parts all at once without stopping the engine 50, thereby minimizing damage.

  The working unit main switch 85 is disposed outside the lever guide 90a of the main transmission lever 90 and behind the neutral position 90c. In this embodiment, it arrange | positions on the outer side between the neutral position 90c and the reverse shift position. Therefore, when an abnormality occurs during normal forward operation, the main transmission lever 90 can be easily operated without stopping when the operation unit main switch 85 is pressed, and the operation unit can be stopped. Since work is not performed during reverse travel, there is almost no abnormality in the working part. Therefore, the space on the side of the main transmission lever 90 can also be effectively used as the operation device arrangement space.

In this way, the body frame 30 is cut with a base cutter 3 for cutting sugarcane pods that will be crops, a side cutter 16 for cutting excess sides and an upper ridge, and a top cutter 17 for cutting, and a cut culm. A working unit consisting of a conveying device consisting of a front conveying device 4 and a rear conveying device 5 for conveying the rearward and a cutting device (chopping device 6) for chopping the rods is provided, and a control unit 9 is provided at the front of the body frame 30. In a harvesting machine provided with a driver's seat 40 in the control section 9 and a main transmission lever 90 on the side of the driver's seat 40, the main transmission lever 90 rotates in the front-rear direction on the forward side and the reverse side. Shifting is possible along the lever guide 90a to be guided, and the working unit main switch is configured to collectively stop the working unit on the outer side behind the neutral position 90c of the lever guide 90a. Since the work section 85 is provided, the work section can be stopped all at once by operating a single switch. When a clogging or the like occurs, the work section is stopped instantaneously, and damage to the machine or harvest is minimized. Can be. Further, the working unit main switch 85 is not obstructed by the main transmission lever 90 during forward operation, and can be immediately operated with a short movement distance of the hand. At the time of non-working reverse movement, it is located on the side of the main speed change lever 90 and becomes a position where the operation is obstructed, so that it cannot be operated unnecessarily.
The working unit is further provided with a sorting device 7 that sucks the shredded straw and sorts unnecessary parts of the crops such as dust and leaves with wind force. The sorting device 7 includes a working unit main switch 85. Since it can be stopped by the operation, when trouble occurs, the sorting device 7 is stopped by the operation of the main switch 85 so that the dust is not blown to the surroundings and is covered with dust when repair or inspection is performed. There is nothing.
Further, since the working unit main switch 85 is disposed on the inclined mounting surface 43a that is lowered toward the driver's seat, it can be easily seen from the work vehicle seated on the driver's seat 40 and can be easily operated.

  The crop divider left up / down switch 86 and the crop divider right up / down switch 87 are constituted by a seesaw switch, and are operated to the up side or down side to switch the electromagnetic valve 191 or the electromagnetic valve 192, thereby hydraulic cylinders 12c and 12c. The left and right crop dividers 2 and 2 can be moved up and down independently to change the height arbitrarily.

  On the side mounting surface 43c formed as a slope on the right outside of the front portion of the control arm 43, a top cutter switch 88 for turning on and off the top cutter 17 and a rotation of the side cutter 16 are turned on and off. A side cutter switch 89 for turning off is disposed. When the top cutter switch 88 is turned on, the electromagnetic valve 202 is switched and the hydraulic motor 203 is driven. When the top cutter switch 88 is operated to the off side, the electromagnetic valve 202 is switched and the drive of the hydraulic motor 203 is stopped. When the side cutter switch 89 is turned on, the electromagnetic valve 174 is switched to drive the hydraulic motor 184, and when the side cutter switch 89 is operated to the off side, the electromagnetic valve 174 is switched and the hydraulic motor 184 is stopped. Thus, the side cutter 16 and the top cutter 17 are operated when necessary, and can be stopped when not needed.

  Further, a rear mounting surface 43 b is formed at the rear portion of the front mounting surface 43 a of the control arm 43. The rear mounting surface 43b is a rearwardly inclined surface, and a deflector up / down switch 95, a discharge conveyor up / down switch 96, a blower turning switch 97, and a blower switch 98 are arranged on the rear mounting surface 43b in order from the front.

When the deflector up / down switch 95 is operated, the electromagnetic valve 193 is switched and the hydraulic cylinder 199 is expanded or contracted, so that the angle of the deflector 15 can be changed.
When the discharge conveyor up / down switch 96 is operated, the electromagnetic valve 194 is switched and the hydraulic cylinder 200 is expanded or contracted, so that the vertical height of the discharge conveyor 8 can be changed.
When the blower turning switch 97 is operated, the electromagnetic valve 179 is switched and the hydraulic motor 189 is rotated to the right or left, so that the discharge direction of the wind selector 7 can be changed.
When the blower switch 98 is turned on, the electromagnetic valve 172 is switched to drive the hydraulic motor 182 to operate the blower 7b. When the blower switch 98 is operated again, the blower switch 98 is turned off and the hydraulic motor 182 can be stopped. .

  As described above, in the sugarcane harvesting machine 1 which is a work vehicle in which the armrest 46 is provided on the side of the driver's seat 40 provided in the control unit 9 and the steering handle 41 is disposed in front of the driver's seat 40, the outside of the armrest 46 is provided. A control arm 43 having an operating device arranged on the side is provided, and the mounting surface of the operation switch arranged on the control arm 43 is disposed below the upper surface of the armrest 46, so that an erroneous operation of the operating device is prevented in advance. be able to. In addition, the operation switches are arranged behind the main transmission lever 90, and the operation switches are not located between the steering handle 41 and the main transmission lever 90 that are operated at the time of operation, and are not easily operated by mistake during operation. It is said.

  Further, as shown in FIG. 9, the cabin in front of the driver's seat 40 is inclined so that the height of the base cutter 3 can be easily recognized when the mowing operation unit up / down switch 91 or the base cutter up / down switch 93 is operated. On the outside of 19, a gauge 100 that interlocks with the raising and lowering of the base cutter 3 is provided. That is, the gauge 100 is formed of a rod-like body, and is vertically disposed outside the cabin 19, and the lower end of the gauge 100 is pivotally supported by the front portion of the front transport frame 14. Is inserted and supported in a guide hole slidably up and down on a guide plate 103 fixed to a mirror frame 102 to which the side mirror 101 is attached. A ring-shaped groove 100a is formed at the upper end portion of the gauge 100 so as to be a mark, and a scale 104 is attached to the front glass 19a of the cabin 19 within a range in which the upper end portion of the gauge 100 can be raised and lowered.

  In such a configuration, an operator sitting on the driver's seat 40 can visually recognize the upper part of the gauge 100 through the front glass 19a. Since the gauge 100 is attached to the front conveyance frame 14, it moves up and down along the front glass 19 a in conjunction with the raising and lowering of the base cutter 3, and depending on where the groove 100 a of the gauge 100 is located on the scale 104. The height of the base cutter 3 is easily understood.

3 Base cutter 4 Front transport device 5 Rear transport device 6 Chopping device 7 Sorting device 9 Control unit 16 Side cutter 17 Top cutter 30 Airframe frame 40 Driver's seat 85 Working unit main switch 90 Main transmission lever 90a Lever guide 90c Neutral position

Claims (4)

  A working unit consisting of a cutting device that cuts crops on the machine frame, a transfer device that transports the harvested crops backward, and a cutting device that shreds the transferred crops, and a control unit is provided at the front of the machine frame. In a harvesting machine in which a driver's seat is disposed in the control section and a main transmission lever is disposed on the side of the driver's seat, the main transmission lever follows a lever guide that guides forward and backward rotation in the front-rear direction. The harvesting machine is characterized in that a working unit main switch for stopping the working unit collectively is provided outside the neutral position of the lever guide on the outer side of the lever guide.   The working unit is further provided with a sorting device that sorts unnecessary portions of the crop after shredding with wind power, and the sorting device is configured to be stopped by operation of the working unit main switch. Item 1. The harvester according to item 1.   The harvesting machine according to claim 1 or 2, wherein the working unit main switch is disposed on an inclined surface that is lowered toward the driver's seat side. 2. The harvester according to claim 1, wherein at least a sub-shift selector switch, a parking brake switch, and a harvesting operation unit up / down switch are disposed on the grip of the main transmission lever.

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