JP3757974B2 - Combine - Google Patents

Description

  The present invention relates to a combine.

For example, a combine described in the following patent document is known.
JP-A-8-89053

  When working with a combine in the field, the noise from the mowing unit cannot usually be reduced, the scattering of dust generated in the mowing unit is not reduced, and the safety cannot be improved.

The present invention solves such a problem, and has taken the following technical means.
That is, the cutting part 3 is provided at the front part of the chassis 7 having the crawler type traveling device 6 arranged at a predetermined interval in the left-right direction, and the left side of the chassis 7 is behind the cutting part 3. In the combine provided with the threshing device 8 in the part, provided with the Glen tank 9 on the right side of the threshing device 8, and provided with the operation unit 1 on the front side of the Glen tank 9, in front of the seat portion 25 of the operation unit 1 , A front operating body 27 having an operation lever-2 for performing the steering operation of the machine body and the raising / lowering operation of the cutting unit 3 is provided, and the cutting unit 3 is vertically moved with the horizontal axis of the cutting support suspension 46 as the rotation center 47. When the configuration is such that the right cover 45 of the cutting unit 3 and the front cover of the front operation body 27 of the operation unit 1 are formed in an arc shape in a side view, the front operation body 27 of the operation unit 1 is formed. Is configured to maintain a substantially constant distance from the turning trajectory of the cutting unit 3. And combine that.

According to the present invention, the front operating body 27 having the operation lever-2 for performing the steering operation of the machine body and the raising / lowering operation of the cutting unit 3 in the driving unit 1 has a substantially constant interval (clearance) with the rotation trajectory of the cutting unit 3. Since the right cover 45 of the cutting unit 3 and the front cover of the front operating body 27 are formed in an arc shape so as to keep, noise from the cutting unit 3 can be reduced and generated in the cutting unit 3. Since dust scattering can be reduced and the gap can be reduced, safety can be improved.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, the configuration will be described. The harvesting machine (combine in the embodiment) 5 is a traveling device (a crawler type) arranged at a predetermined interval in the left-right direction toward the forward direction of the machine body. (It may be configured by a wheel or a combination of a wheel and a crawler). A cutting part 3 is provided at the front part of a chassis 7 having 6 so as to be movable up and down by hydraulic lifting means, and the chassis is located behind the harvesting part 3. 7, a threshing device 8 is provided on the left side, a grain tank 9 is provided on the right side of the threshing device 8, a driving unit 1 is provided in a space between the grain tank 9 and the cutting unit 3, and the threshing device 8 is provided. On the rear side, there is provided a waste disposal device 10 (which is a waste cutting device in the embodiment, but may be a waste binding device, a waste converging device, or a combination of these devices) 10.

  The cutting unit 1 includes a plurality of weed bodies 11 arranged in the lateral direction, a raising device 12 having a raising lug that moves rearward and obliquely upward, a plurality of devices arranged in the lateral direction, a clipper-type cutting device 13, and a cutting The corn straw conveying device 14 that conveys the cereal husk rearward and upward is integrally configured. The moving means of the mowing unit 1 in the lateral direction is the same as the known means and will not be described in detail. However, by the lateral movement driving means (forward / reverse rotation motor 34 in the embodiment) and the lateral movement driving means, This is a configuration performed by an operating mechanism such as an operating screw shaft or gear.

  The threshing device 8 has an automatic culm feeding device 15 that rotates in the advancing direction of the machine body on one side, and after holding the stock part of the cereal that has been transported by the reaping part 3, the threshing apparatus 8 conveys the head part. It is a self-destructive configuration that feeds into the threshing.

  The traveling device 6 includes a drive sprocket 18 that is detachably provided at both ends of a drive shaft 17 projecting from the mission case 16 in the left-right direction (lateral to the traveling direction of the aircraft), and a rolling sprocket that is long in the front-rear direction. A plurality of rolling wheels 20 provided on the wheel frame 19 in the front-rear direction so as to be rotatable, a driven wheel 21 disposed behind the last rolling wheel, a drive sprocket 18, the rolling wheel 20 and the driven wheel 21 are wound around. An endless crawler 22 is provided. The mission case 16 is provided with clutches 23 and 24 for transmitting / stopping rotational power to the left drive shaft 17 and the right drive shaft 17 using hydraulic pressure.

  The driving unit 1 has a seat unit 25 on which an operator sits, an operation lever 2 for steering the aircraft and raising and lowering the cutting unit 3 on the right side, an engine switch 26 for starting the engine, and the like in front of the seat unit 25. Provided is the front operating body 27 provided, a lateral operating body 28 whose front end is connected to the left end of the front operating body 27 and extends to the left lateral side of the seat 25 in the forward direction of the machine body. Yes. A lateral movement switch 4 is provided on the lateral surface of the grip 33 of the operation lever-2.

  The lateral operation body 28 is provided with a plurality of long grooves, a main transmission lever 29 for operating a shift of the traveling speed of the machine body, an auxiliary transmission lever 30, a cutting lever 31 for operating driving / stopping of the cutting unit 1, and the threshing device 8. A threshing lever 32 for driving / stopping each part of the rotation is provided.

The grain stored in the Glen tank 9 is configured to be discharged out of the machine through a discharge agar 44 communicating with the whipping cylinder 43.
Referring to the block circuit of FIG. 6, reference numeral 35 denotes an arithmetic control unit (hereinafter referred to as “CPU”) of a microcomputer having a memory 36 incorporating necessary data and control programs. -Some of the information input via the face 37 includes engine on / off information from the engine switch 26, cutting part lateral movement information from the lateral movement switch 4, provided within the rotation range of the operation lever-2 and left Left-side direction change information from the left-side direction change switch 38 that is turned on and off by tilting / releasing to the right side, right-side direction from the right-side direction changing switch 39 that is provided within the rotation range of the operation lever-2 and that is turned on and off by tilting and releasing to the right side There is change information.

  The drive command signal output from the CPU 35 via the output interface 40 includes a command signal to the electromagnetic valves 41 and 42, a forward or reverse command signal to the forward / reverse motor 34, and the like.

Next, the operation will be described.
First, when the driver sits on the seat part 25 of the driving part 1, depresses the parking brake pedal, enters the engine switch 26 and starts the engine, the power output from the engine is transmitted to the rotating parts of the aircraft via the transmission mechanism. It is transmitted to.

  Then, the throttle lever is rotated to select the engine at a predetermined number of revolutions, and the auxiliary transmission lever 30 is rotated to a desired position, for example, a standard is selected, and the threshing lever 32 and the cutting lever 31 are further selected. When the threshing device 8 and the cutting unit 3 are driven by operating, the machine conditions and the like are displayed on each display tool of the instrument panel.

  When the preparation of the harvesting work is completed, the depression of the parking brake pedal is released, and then the main transmission lever 29 is rotated forward to advance the machine body and the operation lever-2 is tilted in the front-rear direction to cut the cutting part. Determine the height of 1. Then, when the operation lever-2 is tilted to the left, the left direction change switch 38 is turned on, so that the CPU 35 that has taken in the left direction change information via the input interface 37 is electromagnetically connected via the output interface 40. An excitation signal is output to the solenoid of the valve 41 to operate the solenoid valve 41. In this connection, the clutch 23 is switched from the transmission state to the disengagement state by the pressing force of the hydraulic oil sent in, so that the rotation of the drive sprocket 18 attached to the drive shaft 21 on the left side of the traveling device 6 stops, while the right side The drive sprocket 18 is in a rotating state and changes the fuselage to the left side.

  When the operation lever-2 is tilted to the right, the right direction change switch 39 is turned on, so that the CPU 35 that has fetched the left direction change information via the input interface 37 receives the electromagnetic valve 42 via the output interface 40. The solenoid valve 42 is actuated by outputting an excitation signal to the solenoid. In relation to this, the clutch 24 is switched from the transmission state to the disengagement state by the pressing force of the fed hydraulic oil, so that the rotation of the drive sprocket 18 attached to the drive shaft 21 on the right side of the traveling device 6 stops, while the left side. The drive sprocket 18 is in a rotating state and changes the airframe to the right side.

  When the weed body 11 is adjusted to the predetermined length by the operation of the operation lever-2 as described above, after the root portion of the cereal caused by the raising lag of the pulling device 12 is cut by the reaping device 13 It is conveyed rearward and upward by the cereal conveying device 14.

  Then, the cereal that has reached the end of conveyance is sandwiched by the cereal automatic feeding device 15 and conveyed rearward, and sent to the waste disposal device 10 for processing. The threshing process is performed by feeding into the handling chamber of the apparatus 8. Processed products such as the grains thus produced are wind-selected and separated into grains and straw scraps, and the grains are fed into the glen tank 9 and accommodated by a conveying device such as the first helix and the first cerealing device. The

  In such a harvesting operation, the workability may be improved by moving the cutting unit 3 in the lateral direction. For example, when the mowing unit 3 is moved to the left side, the driver turns on the lateral movement switch 4 and turns the operation lever 2 to the left side to turn on the left direction change switch 38. Then, the CPU 35 takes in the mowing part lateral movement information and the left direction change switch information via the input interface 37 and rotates the forward / reverse motor 34 in the forward direction, so that the operation mechanism such as the screw shaft and gear operates. The mowing unit 3 is moved to the left side.

  On the other hand, when the mowing unit 3 is moved to the right side, the driver turns the operation lever-2 to the right side and switches the right direction change switch 39 when the lateral movement switch 4 is turned on or when it is turned on. To enter. Then, the CPU 35 takes in the mowing unit lateral movement information and the left direction change switch information via the input interface 37 and reverses the forward / reverse motor 34, so that the operating mechanism such as the screw shaft and gear operates. The mowing unit 3 is moved to the right side.

  As described above, by operating the operation lever-2 having a high operation frequency, the reaping part 3 can be moved to the left or right side, so that the reaping part moving operation without an operation error can be performed. And since the change operation direction of the advancing direction of an airframe and the operation direction of the moving direction of the cutting part 3 are the same, moving operation of the cutting part 3 is easy to perform. Furthermore, since the operation of changing the direction of travel of the aircraft and the operation of moving the cutting unit 3 are not performed at the same time, the aircraft does not shake during the alignment of the aircraft and the comfort can be improved.

  After that, when the grains in the tank are full, the driver interrupts the harvesting operation and moves the combine 5 near the straw, for example. Then, when the operator operates the discharge auger turning tool of the operation unit 1, the discharge agar lifting device raises the discharge agar 44, and the activated motor moves the whipping cylinder 43 through the gear. Rotate. Thereafter, when the discharge agar 44 reaches the target position, the operator stops the operation of the discharge agar turning tool.

  At this time, if the discharge port of the discharge agar 44 is positioned above the loading platform of a transport vehicle such as a truck, the discharge clutch is engaged. Then, the grains in the tank are discharged from the discharge port of the discharge auger 44 through the lower tube and the cereal tube 43 in this order by rotation of the lower spiral, the cereal spiral, and the discharge spiral, and are stored in the loading platform. .

  Note that the right cover 45 of the cutting unit 3 and the operating unit 1 are the combine 5 in which the left and right directions overlap each other, and the cutting unit 3 rotates in the vertical direction about the horizontal axis of the cutting support suspension 46 as the rotation center 47. It is configured to do. Then, the front operating body 27 of the operating unit 1 is configured so that the right cover 45 and the front cover 48 of the front operating body 27 are in a circle so as to maintain a substantially constant interval (gap) with respect to the turning locus of the cutting unit 3. It is formed in an arc shape. Thereby, the noise from the cutting part 3 can be reduced, the scattering of dust generated in the cutting part can be reduced, and the clearance can be reduced, thereby improving the safety.

  FIG. 5 is seen from the side surface of the combine 5, and the front operating body 27 is provided with a soundproof cover 49 that overlaps the right cover 45 of the cutting unit 3, thereby further enhancing the dustproof effect.

The front view of a combine. The side view of a combine. The top view of an operation part. The perspective view of an operation lever. The side view of the combine of another Example. Block circuit diagram.

Explanation of symbols

1 Driving Department
2 operation lever
3 Cutting part 6 Traveling device 7 Chassis 8 Threshing device 9 Glen tank 25 Seat part 27 Front operation body 45 Right cover
46 Mowing support suspension 47 Center of rotation

Claims (1)

A cutting part 3 is provided in a front part of a chassis 7 having a crawler-type traveling device 6 arranged at a predetermined interval in the left-right direction, and can be moved up and down, and behind the cutting part 3 on the left side of the chassis 7. In a combine provided with a threshing device 8, a grain tank 9 provided on the right side of the threshing device 8, and a driving unit 1 provided on the front side of the grain tank 9, a front side of the seat unit 25 of the driving unit 1 , A front operation body 27 having an operation lever-2 for performing the steering operation and the raising / lowering operation of the cutting unit 3 is provided, and the cutting unit 3 is rotated up and down around the horizontal axis of the cutting support suspension 46 as the rotation center 47. When the moving structure is configured, the right cover 45 of the cutting unit 3 and the front cover of the front operating body 27 of the operating unit 1 are formed in an arc shape in a side view so that the front operating body 27 of the operating unit 1 cuts. It is configured to maintain a substantially constant distance from the rotation trajectory of the section 3. Inn.

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