JP2014183796A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester that can restrain the amount of protrusion of an auger driving device protruding laterally from a reaping frame and can restrain the amount of protrusion of the auger driving device from a reaping width.SOLUTION: A combine harvester 1 comprises a reaping part 20 including: a PF auger 23 for taking reaped grain culm; and an auger driving device 93 for generating power for driving the PF auger 23. The auger driving device 93 comprises a part inserted into the PF auger 23. In addition, the auger driving device 93 comprises an auger electric motor 93a, and an axis line of an output shaft 93c of the auger electric motor 93a and an axis line of a rotating shaft of the PF auger 23 are arranged on a same straight line L.

Description

  The present invention relates to a drive configuration of a platform auger of a cutting unit in a combine.

2. Description of the Related Art Conventionally, a combine technique for driving a platform auger (PF auger) of a cutting unit with an electric motor is known (for example, Patent Document 1).
In the combine described in Patent Document 1, a PF auger is arranged inside the cutting frame, and an electric motor (auger drive device) is arranged on the side of the cutting frame.

  However, when the auger drive device protrudes sideways from the cutting frame and the protrusion amount of the auger drive device from the cutting width increases, the auger drive device easily comes into contact with crops and obstacles during the cutting operation. There is a risk.

JP 2009-171917 A

  The present invention provides a combine that can suppress the protrusion amount of the auger drive device protruding sideways from the cutting frame and can suppress the protrusion amount of the auger drive device from the cutting width.

The combine according to claim 1 is:
A platform auger that takes in the harvested cereal rice bran, and an auger drive unit that generates power for driving the platform auger;
The auger drive device has a portion that enters into the platform auger.

In the combine according to claim 2,
The auger drive device has a motor,
The axis of the output shaft of the motor and the axis of the rotation shaft of the platform auger are arranged on the same straight line.

In the combine according to claim 3,
The auger drive device has a speed reducer interposed between the motor and the platform auger.

In the combine according to claim 4,
The cutting part is provided with a cutting frame having left and right side walls and a bottom plate existing between the left and right side walls,
The platform auger is constructed between the left and right side walls of the cutting frame, and is configured to be able to change a distance between the bottom plate,
The auger drive device is integrally displaced with the platform auger when the distance between the platform auger and the bottom plate is changed.

  According to the combine described in claim 1, it is possible to suppress the protruding amount of the auger drive device protruding sideways from the cutting frame, and to suppress the protruding amount of the auger drive device from the cutting width. is there.

  According to the combine described in claim 2, the power transmission system to the platform auger can be configured in a compact manner.

  According to the combine described in claim 3, low speed and high torque can be obtained with a small motor.

  According to the combine described in claim 4, it is possible to smoothly change the distance between the platform auger and the bottom plate of the cutting frame.

The left view of a combine. The top view of a combine. The figure which shows a threshing part and a selection part. The figure which shows the structure of an electric motor and its peripheral device. The block diagram which showed the control structure of the combine. The top view of a cutting part. The right view of a cutting part. The perspective view of the electric motor for augers. XX sectional drawing of FIG. The perspective view which shows the attachment structure of the drive device for augers. Sectional drawing which shows the support structure of PF auger.

  Below, the normal type combine 1 is demonstrated.

  As shown in FIGS. 1 and 2, the combine 1 includes a traveling unit 10, a reaping unit 20, a threshing unit 30, a sorting unit 40, a grain storage unit 50, a waste processing unit 60, and a control unit. 70, an engine 80, and a generator 81.

  The traveling unit 10 is provided in the lower part of the body 2. The traveling unit 10 includes a crawler type traveling device 11 having a pair of left and right crawlers, and is configured such that the body 2 can travel in the forward or backward direction by the crawler type traveling device 11.

The cutting unit 20 is provided in front of the machine body 2 and is supported so as to be movable up and down with respect to the machine body 2. The cutting unit 20 includes a reel 21, a cutting blade 22, a platform auger (PF auger) 23, and a feeder house conveyor (FH conveyor) 24. The reel 21, the cutting blade 22, and the PF auger 23 are supported by a cutting frame 25. A feeder house 26 is provided between the cutting frame 25 and the machine body 2, and an FH conveyor 24 is provided in the feeder house 26.
Further, the cutting unit 20 is provided with electric motors 91 a, 92 a, 93 a, and 94 a for driving the reel 21, the cutting blade 22, the PF auger 23, and the FH conveyor 24.
A detailed description of the mounting structure of the auger electric motor 93a, the speed reducer 93b, and the PF auger 23 will be described later.

  The reaping unit 20 scrapes the cereal with the reel 21, cuts the stock of the culm after squeezing with the cutting blade 22, and gathers the harvested cereal with the PF auger 23 before feeding it to the FH conveyor 24. It is configured so that it can be delivered to the threshing unit 30 by the FH conveyor 24.

The threshing unit 30 is provided on the upper left side of the machine body 2 and is disposed behind the reaping unit 20.
As shown in FIG. 3, the threshing unit 30 includes a handling drum 31 and a concave 32. The threshing unit 30 is configured to thresh while sending the cereals conveyed from the cutting unit 20 to the rear by the handling barrel 31 and the concave 32, and to leak the threshing.

The sorting unit 40 is provided in the lower left part of the machine body 2 and is disposed below the threshing unit 30.
As shown in FIG. 3, the sorting unit 40 includes a swing sorting device 41, a wind sorting device 42, a grain transport device 43, and a second reduction device 44. The sorting unit 40 swings and sorts the cereals falling from the threshing unit 30 by the swing sorting device 41 into grains and swarf, and further uses the wind sorting device 42 to further remove the grains and sawdust. And the like, and the grain transport device 43 is configured so that the grain after sorting can be transported to the grain storage unit 50 side.

  The swing sorting device 41 includes a first chaff sheave 41a, a second chaff sheave 41b, and a sieving member 41c. The swing sorting device 41 is disposed below the handling cylinder 31. The swing sorting device 41 is provided with a swing mechanism 41d. The swing mechanism 41d swings the first chaff sheave 41a, the second chaff sheave 41b, and the sieving member 41c with respect to the machine body 2.

  The first chaff sheave 41a and the second chaff sheave 41b have a plurality of chaff fins that are horizontally mounted at equal intervals in the left-right direction. Each of the chaff fins is configured such that the angle thereof can be changed, and each chaff fin is juxtaposed in the front-rear direction in a state where each of the chaff fins is slightly inclined to a front low and a high rear. The sieving member 41c is composed of a comb-like member, and is provided at the rear end portion of the first chaff sheave 41a with the tooth portion facing rearward, and is positioned above the front portion of the second chaff sheave 41b.

  The swing sorter 41 swings the first chaff sheave 41a, the second chaff sheave 41b, and the sieving member 41c to roughly sort the grain from the cereal falling from the threshing section 30, and after the coarse sorting Things can be made to leak to the wind sorting device 42. The amount of leakage at this time is adjusted by changing the angles of the plurality of chaff fins in the first chaff sheave 41a and the second chaff sheave 41b.

The wind sorting device 42 includes a tang 42a, a first conveyor 42b, and a second conveyor 42c. The tang 42a is rotatably supported and is disposed near the front end on the left side of the body 2. The first conveyer 42b and the second conveyer 42c are respectively disposed behind the tang 42a, and are juxtaposed in the front-rear direction.
The wind sorting device 42 is provided with a red pepper electric motor 95a for rotationally driving the red pepper 42a.

  The wind sorting device 42 drives the Kara 42a to rotate, thereby causing the sorting wind to be sent to the rear, hitting the sorting wind against the grains and swarf falling from the oscillating sorting device 41, and sorting these specific gravity. To do. Of these, the one with the higher specific gravity falls to the first conveyor 42b without being affected by the sorting wind, whereas the one with the lower specific gravity is carried rearward by the sorting wind, and the second conveyor 42c. And lighter dust etc. are discharged to the rear.

  In addition, the wind sorting device 42 drives the first conveyor 42b, so that what has fallen on the first conveyor 42b is sent to the right side as the first thing and delivered to the grain conveying device 43. The grain conveying device 43 conveys this first thing to the grain storage unit 50 side.

  Further, the wind sorting device 42 drives the second conveyor 42c, so that what has fallen on the second conveyor 42c is sent to the right side as a second thing and is delivered to the second transport device 44a of the second reduction device 44. .

  The second reduction device 44 includes a second transport device 44a and a second processing device 44b. The second transport device 44a extends in the front-rear direction on the right side of the swing sorting device 41 and the wind sorting device 42, and is disposed in a state of being inclined to the front height and the rear. The second processing device 44b is disposed so as to be located above the front end portion of the swing sorting device 41, and is connected to the second transport device 44a.

  The second reduction device 44 sends the second product received by the second transport device 44a to the second processing device 44b, and the second processing device 44b performs processing such as removing branching of the second thing. After that, it can be dropped and returned to the swing sorting device 41. In this way, the second product that has passed through the swing sorting device 41 and the wind sorting device 42 is repeatedly sorted.

  As shown in FIGS. 1 and 2, the grain storage unit 50 is provided in the front-rear central portion on the right side of the machine body 2 and is disposed on the right side of the threshing unit 30 and the sorting unit 40. The grain storage unit 50 includes a grain tank 51 and a grain discharging device 52. The grain storage part 50 stores the grain conveyed from the selection part 40 in the grain tank 51, conveys the stored grain in an arbitrary direction by the grain discharging device 52, and then discharges it to the outside. Configured to be able to.

  The waste disposal unit 60 is provided on the left rear upper side of the machine body 2 and is disposed behind the threshing unit 30 and the sorting unit 40. The waste processing unit 60 is configured to discharge the threshed culm from the threshing unit 30 to the outside as waste, and to discharge the swarf and dust from the sorting unit 40 to the outside. .

  The control unit 70 is provided so as to protrude forward from the right front end of the airframe 2, and is disposed in front of the grain storage unit 50. The control unit 70 includes a reel operating tool 71 for operating the reel 21, a cutting blade operating tool 72 for operating the cutting blade 22, an auger operating tool 73 for operating the PF auger 23, A conveyor operating tool 74 for operating the FH conveyor 24 and a Karatsu operating tool 75 for operating the Kara 42a are provided (see FIG. 5). The control unit 70 is provided with various operating tools including a steering handle 76 and a shift lever, a control seat, and a cabin 77.

As shown in FIG. 2, the engine 80 is provided at the right front end of the airframe 2 and is disposed below the control unit 70. A generator 81 is provided on the left side of the engine 80. The generator 81 is connected to the engine 80 and is driven by the rotation of the engine 80 being transmitted.
A battery 82 is provided at the right rear end of the machine body 2. The battery 82 is electrically connected to the generator 81 and can store the electric power generated by the generator 81.

Below, the power transmission of the combine 1 is demonstrated.
The combine 1 supplies the power of the engine 80 to the traveling unit 10, the threshing unit 30, the sorting unit 40 (excluding the red pepper 42a), the grain storage unit 50, and the waste processing unit 60 via a power transmission system including a transmission. These parts are driven by the power of the engine 80.
Moreover, the combine 1 is the electric motor (three-phase alternating current motor) 91a and 92a regarding each part (the reel 21, the cutting blade 22, the PF auger 23, and the FH conveyor 24) of the cutting part 20, and the Karatsu 42a of the selection part 40. • Driven by the power of 93a, 94a, and 95a (see FIG. 5).

  Next, the configuration of the electric motors 91a, 92a, 93a, 94a, 95a and peripheral devices will be described.

  As shown in FIG. 4, during normal travel (when the engine 80 is rotating), the generator 81 is driven by the engine 80 to generate AC power. This AC power is converted into DC power by the inverter 83. The DC power is converted into AC power by inverters 192, 193, and 194 and supplied to the electric motors 92a, 93a, and 94a, respectively. Further, the DC power is adjusted in voltage by the DC-DC converter 84, converted into AC power by the inverters 191 and 195, and supplied to the electric motors 91a and 95a, respectively. Therefore, when the power consumption is less than the generated power, the reel 21, the cutting blade 22, the PF auger 23, the FH conveyor 24, and the red pepper 42 a are driven by the power from the generator 81, and surplus power is stored in the battery 82. Further, when the power consumption is greater than the generated power, the battery 82 also supplies power.

  When the engine 80 is stopped, the electric power stored in the battery 82 is supplied to the electric motors 91a, 92a, 93a, 94a, and 95a via the inverters 191, 192, 193, 194, and 195, respectively. Therefore, when the engine 80 is stopped, the reel 21, the cutting blade 22, the PF auger 23, the FH conveyor 24, and the red pepper 42 a are driven by the electric power from the battery 82.

As shown in FIG. 5, operating devices 71, 72, 73, 74, and 75 and inverters 191, 192, 193, 194, and 195 are connected to the control device 100.
The control device 100 receives the signals from the operation tools 71, 72, 73, 74, and 75, thereby controlling the inverters 191, 192, 193, 194, and 195 to control the electric motors 91a, 92a, 93a, 94a, and 95a. Manipulate the rotation of. Thereby, the control apparatus 100 controls operation | movement of the reel 21, the cutting blade 22, the PF auger 23, the FH conveyor 24, and the Kara 42a.

Conventionally, the power of the engine has been configured to be transmitted to each part of the cutting unit and the tang through a plurality of transmission belts and pulleys.
On the other hand, the combine 1 according to the present embodiment includes the electric motors 91 a, 92 a, and the electric motors 91 a, 92 a, and the parts of the cutting unit 20 (the reel 21, the cutting blade 22, the PF auger 23, and the FH conveyor 24) and the Kara 42 a of the sorting unit 40. 93a, 94a and 95a are connected to each other, and each part of the cutting unit 20 and the carp 42a are individually driven by the power of the electric motors 91a, 92a, 93a, 94a and 95a. Thereby, parts for connecting to the engine, such as a conventionally used transmission belt and transmission pulley, can be deleted, and a power transmission system to the cutting unit 20 and the tang 42a can be simplified. Further, regarding each part of the cutting unit 20 (reel 21, cutting blade 22, PF auger 23, and FH conveyor 24) and the tang 42a of the sorting unit 40, the power transmission system is different from the power transmission system with the engine 80. Therefore, regardless of the engine 80, the output shafts of the electric motors 91a, 92a, 93a, 94a, and 95a can be rotated to facilitate maintenance and adjustment.

  In addition, the combine 1 has a power source (electric motors 91a, 92a, 93a, 94a, and 95a) for the parts that should be adjusted in rotation speed according to the work situation (each part of the cutting unit 20 and the tang 42a). By providing this, each rotational speed is configured to be adjustable. And about the site | part (threshing part 30 and the generator 81) which require a fixed rotational speed, the engine 80 is used as a power source. Thus, the combine 1 is improving workability | operativity by providing multiple types of power sources in consideration of the characteristic of each part.

  As shown in FIG. 2, the combine 1 is provided with electric motors 91 a, 92 a, 93 a, and 94 a in the cutting unit 20, and a battery 82 at the rear end of the machine body 2 (behind the grain storage unit 50). This is because the center of gravity of the combine 1 is biased forward by providing the electric motors 91 a, 92 a, 93 a, and 94 a in the cutting unit 20, but the weight balance before and after the combine 1 is provided by providing the battery 82 at the rear end of the machine body 2. This is to suppress the deviation of the center of gravity. Thereby, the posture of the combine 1 can be stabilized.

  Below, the arrangement structure of the cutting frame 25, the PF auger 23, and the auger electric motor 93a will be described.

  As shown in FIG. 6, a cutting blade 22 is provided at the front lower portion of the cutting frame 25, and a PF auger 23 is provided at the front and rear central portion of the cutting frame 25. A feeder house 26 is provided.

The cutting frame 25 includes a pair of left and right side walls 25a and 25b, a rear plate 25c provided on the right side of the rear part between the side walls 25a and 25b, and a bottom plate 25d provided on a lower part between the side walls 25a and 25b. An opening 25e to which the feeder house 26 is connected is formed on the left side between the side walls 25a and 25b.
The cereals collected by the PF auger 23 are configured to be transferred to the FH conveyor 24 through the opening 25e.

The PF auger 23 has a substantially cylindrical shape and has a rotation shaft extending in the left-right direction. On the outer periphery of the PF auger 23, a conveying spiral 23a that is inclined toward the center of the opening 25e is provided in order to gather the grains in front of the opening 25e of the cutting frame 25.
The PF auger 23 is installed between the side walls 25a and 25b of the cutting frame 25 and is rotatably supported. An auger drive device 93 is connected to the PF auger 23.

The auger drive device 93 generates power for driving the PF auger 23.
The auger drive device 93 includes an auger electric motor 93a and a speed reducer 93b.

  As shown in FIGS. 6 and 9, the auger electric motor 93 a is provided on the side (right side) of the PF auger 23. The axis of the output shaft 93c of the electric motor 93a for auger and the axis of the rotating shaft of the PF auger 23 are arranged on the same straight line L. As a result, the rotation of the auger electric motor 93a can be transmitted to the PF auger 23 without using a pulley, a belt member, or the like, and the power transmission system to the PF auger 23 can be configured in a compact manner. .

  A reduction gear 93 b is provided between the output shaft 93 c of the auger electric motor 93 a and the PF auger 23. The speed reducer 93b is composed of, for example, a planetary gear mechanism.

The rotation of the output shaft 93c of the auger electric motor 93a is transmitted to the PF auger 23 after being decelerated by the speed reducer 93b, and the PF auger 23 is driven. By providing the speed reducer 93b, it is possible to obtain low speed and high torque with a small motor.
As described above, the auger drive device 93 generates power for driving the PF auger 23 by the auger electric motor 93a and the speed reducer 93b.

The speed reducer 93b enters the PF auger 23 from the right side. The inside of the PF auger 23 is a space surrounded by the inner peripheral surface of the PF auger 23.
As described above, the auger drive device 93 is provided on the side portion of the PF auger 23 and has a portion (reduction gear 93 b) that enters the PF auger 23. This makes it possible to suppress the amount of protrusion that the auger drive device 93 protrudes laterally from the PF auger 23, and the amount of protrusion of the auger drive device 93 from the cutting width W (progress of the auger drive device 93). Can be suppressed.

  Below, the attachment structure of the electric motor 93a for augers, the reduction gear 93b, and the PF auger 23 is demonstrated.

As shown in FIGS. 6 to 10, a hole communicating with the inside of the PF auger 23 is formed in the right side wall 25 b of the cutting frame 25, and the main body portion 93 d of the auger electric motor 93 a passes through the hole. Projects inward. A case 93e is fixed to the main body portion 93d of the auger electric motor 93a via a motor flange portion 93h, and a case flange portion 93f is fixed to the outer periphery of the case 93e. A case flange portion 93f exists on the left side of the right side wall 25b, a right mounting plate 25g exists on the right side, and the right side wall 25b is sandwiched between the case flange portion 93f and the right mounting plate 25g from the left and right. It is in the state. The right mounting plate 25g is fixed to the right side wall 25b. Further, a right support plate 25h exists on the right side of the right mounting plate 25g. When the right side wall 25b, the case flange portion 93f, the right mounting plate 25g, and the right support plate 25h are tightened by the fastening members (bolts and nuts) 25i, the case flange portion 93f is fixed to the right side wall 25b. The electric motor 93a is fixed to the cutting frame 25. Long holes 25j and 25s are formed in the right mounting plate 25g and the right side wall 25b, and a fastening member 25i is inserted through the long holes 25j and 25s. And the position of the right end part of the PF auger 23 is changed with the electric motor 93a for augers by changing the fastening position of the fastening member 25i within the range of the long holes 25j and 25s.
Further, the upper end of the right support plate 25h is connected to the right mounting plate 25g with bolts and nuts 25k, and the height of the right support plate 25h is maintained.

  The output shaft 93c of the auger electric motor 93a extends in the left-right direction and protrudes into the cutting frame 25. A reduction gear 93b is connected to the left end of the output shaft 93c of the auger electric motor 93a. A wing-like connecting member 93g is fixed to an output shaft (not shown) of the speed reducer 93b, and the connecting member 93g is fixed to the inner peripheral surface of the PF auger 23. Thus, the output shaft of the speed reducer 93b and the PF auger 23 are configured to rotate integrally.

As shown in FIGS. 6 and 11, a hole communicating with the inside of the PF auger 23 is formed in the left side wall 25 a of the cutting frame 25. A left mounting plate 25m exists on the left side of the left side wall 25a, and the left mounting plate 25m is disposed so as to close the hole of the left side wall 25a. A support member 25n is fixed to the left mounting plate 25m with bolts and nuts 25t. A shaft portion 25u is rotatably inserted into the support member 25n, and a disk portion 25o is fixed to the shaft portion 25u. The disk portion 25 o is fixed to the inner peripheral surface of the PF auger 23 and rotates integrally with the PF auger 23.
On the right side of the left side wall 25a, a plate member 25p having a hole in the center is disposed, and the left side wall 25a is sandwiched from the left and right by the plate member 25p and the left mounting plate 25m. The left side wall 25a, the plate member 25p, and the left mounting plate 25m are fastened by fastening members (bolts and nuts) 25q. A long hole 25r is formed in the left side wall 25a, and a fastening member 25q is inserted through the long hole 25r. And the position of the left end part of PF auger 23 is changed by changing the fastening position of fastening member 25q within the limits of long hole 25r.

  In the combine 1 having such a configuration, the fastening positions of the fastening members 25i and 25q are changed within the range of the long holes 25j, 25s, and 25r, so that the PF auger 23 and the auger drive device 93 (the auger electric motor 93a And the speed reducer 93b) are integrally displaced so that the distance α between the PF auger 23 and the bottom plate 25d of the cutting frame 25 is changed.

  Accordingly, it is possible to improve workability by changing the interval α between the PF auger 23 and the bottom plate 25d of the cutting frame 25 in accordance with the type of the culm and the speed of taking in.

Conventionally, engine power has been transmitted to the PF auger using pulleys, V-belts, and the like. When the distance between the PF auger and the bottom plate of the cutting frame is changed, the positional relationship between the pulley and the PF auger changes, so that the adjustment work of the tension of the V belt has been performed.
However, since the auger drive device 93 is integrally displaced with the PF auger 23 when the interval α between the PF auger 23 and the bottom plate 25d of the cutting frame 25 is changed by configuring as in the present embodiment, There is no need to perform a conventional adjustment operation, and the operation of changing the distance α between the PF auger 23 and the bottom plate 25d of the cutting frame 25 can be performed smoothly.

In the above embodiment, the auger drive device 93 is constituted by the auger electric motor 93a and the speed reducer 93b. However, the auger drive device 93 is constituted only by the auger electric motor 93a. May be. More specifically, the axis of the output shaft 93c of the auger electric motor 93a and the axis of the rotating shaft of the PF auger 23 are arranged on the same straight line so that the auger electric motor 93a enters the PF auger 23. The output shaft 93c of the auger electric motor 93a is fixed to the inner peripheral surface of the PF auger 23.
As a result, the auger electric motor 93a enters the PF auger 23, and it is possible to suppress the allowance of the auger electric motor 93a. Further, the rotation of the auger electric motor 93a can be transmitted to the PF auger 23 without using a pulley, a belt member or the like, and the power transmission system to the PF auger 23 can be configured compactly.

1 Combine 20 Cutting part 23 PF auger 93 Auger drive device 93a Electric motor for auger 93c Output shaft

Claims (4)

A platform auger that takes in the harvested cereal rice bran, and an auger drive unit that generates power for driving the platform auger;
The auger drive device has a portion that enters into the platform auger,
Combine. The auger drive device has a motor,
The axis of the output shaft of the motor and the axis of the rotation shaft of the platform auger are arranged on the same straight line,
The combine according to claim 1. The auger drive device has a speed reducer interposed between the motor and the platform auger,
The combine according to claim 2. The cutting part is provided with a cutting frame having left and right side walls and a bottom plate existing between the left and right side walls,
The platform auger is constructed between the left and right side walls of the cutting frame, and is configured to be able to change a distance between the bottom plate,
The auger drive device is integrally displaced with the platform auger when an interval between the platform auger and the bottom plate is changed.
The combine as described in any one of Claims 1-3.

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