JP2014183794A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester that can restrain the amount of protrusion of a reel driving device protruding laterally from a reel and can restrain the amount of protrusion of the reel driving device from a reaping width.SOLUTION: A combine harvester 1 comprises a reaping part 20 including: a reel 21 for raking grain culm; and a reel driving device 91 for generating power for driving the reel 21. The reel driving device 91 comprises a part inserted into the reel 21. In addition, the reel driving device 91 comprises a reel electric motor 91a, and an axis line of an output shaft 91f of the reel electric motor 91a and an axis line of a rotating shaft 21b of the reel 21 are arranged on a same straight line L.

Description

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

Conventionally, the technique of the combine which drives the reel of a cutting part with an electric motor is well-known (for example, patent document 1).
In the combine described in Patent Document 1, an electric motor (reel drive device) is disposed on the side of the reel.

  However, if the reel drive device protrudes sideways from the reel and the amount of protrusion of the reel drive device from the cutting width increases, the reel drive device is likely to come into contact with crops and obstacles during the cutting operation. There is a fear.

JP 2009-171916 A

  The present invention provides a combine that can suppress the amount of protrusion of the reel driving device protruding from the reel to the side, and can suppress the amount of protrusion of the reel driving device from the cutting width.

The combine according to claim 1 is:
A cutting part having a reel that scrapes the cereal and a driving device for the reel that generates power for driving the reel;
The reel driving device has a portion that enters the reel.

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

In the combine according to claim 3,
The reel driving device includes a speed reducer interposed between the motor and the reel.

In the combine according to claim 4,
The reel has a structure in which a plurality of tines are mounted in parallel on a tine mounting rod horizontally mounted across the left and right reel frames,
A crank mechanism for maintaining a constant rotation posture of the tine is provided on the left and right sides of the reel, and the reel driving device is provided on the left and right sides of the reel.

  According to the combine described in claim 1, it is possible to suppress the protruding amount of the reel driving device protruding sideways from the reel, and it is possible to suppress the protruding amount of the reel driving device from the cutting width. .

  According to the combine described in claim 2, the power transmission system to the reel can be made compact.

  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, the reel drive device can be inserted into the reel without being disturbed by the crank mechanism.

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 reel. The right view of a reel.

  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 arrangement structure of the reel 21 and the reel electric motor 91a 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 reel 21 and the electric motor 91a for reels will be described.

  As shown in FIGS. 1 and 2, the reel 21 is disposed on the upper front side of the cutting frame 25. A rear portion of the pair of left and right support arms 21a is supported at the upper rear end of the cutting frame 25 so as to be movable up and down, and a lifting cylinder (not shown) is disposed between the cutting frame 25 and the support arm 21a. The support arm 21a protrudes upward and forward of the cutting frame 25, and the reel 21 is rotatably supported on the protruding end. The reel 21 is lifted and lowered by the lift cylinder so that the scraping height of the reel 21 can be adjusted.

  As shown in FIGS. 6 and 7, the reel 21 includes a rotating shaft 21b horizontally supported by a pair of left and right support arms 21a, a regular hexagonal reel frame 21c connected and fixed to the rotating shaft 21b, A tine mounting rod 21d horizontally supported rotatably at the top six positions of the reel frame 21c, a plurality of tines 21e mounted in parallel at a fixed pitch on the tine mounting rod 21d, and an axis P of the rotating shaft 21b On the other hand, it has a regular hexagonal-shaped auxiliary reel frame 21f supported so as to be rotatable about an eccentric axis Q which is shifted backward by a predetermined distance.

  An arm 21g protrudes rearward from the right end of each tine mounting rod 21d, and the tip of the arm 21g is pivotally connected to the outer end corner of the auxiliary reel frame 21f. When the reel frame 21c is rotated around the axis P of the rotating shaft 21b, the auxiliary reel frame 21f rotates following the eccentric axis Q in synchronization with the reel frame 21c. While revolving around the axis P, it is rotated in the opposite direction around the axis of the tine mounting rod 21d so that the rotational attitude of the tine 21e is maintained constant. In this way, a mechanism for maintaining the rotation posture of the tine 21e constant is referred to as a crank mechanism. In the present embodiment, the crank mechanism (auxiliary reel frame 21 f, arm 21 g, etc.) is provided on the right side of the reel 21. A reel driving device 91 is connected to the reel 21.

The reel driving device 91 generates power for driving the reel 21.
The reel drive device 91 includes a reel electric motor 91a and a speed reducer 91b. The reel electric motor 91a and the speed reducer 91b are accommodated in cases 91c and 91d, respectively.

  The reel electric motor 91 a is provided on the side (left side) of the reel 21. The motor body 91e of the reel electric motor 91a is fixed to the front end of the left support arm 21a. The output shaft 91f of the reel electric motor 91a is connected to the rotating shaft 21b of the reel 21, and the axis of the output shaft 91f of the reel electric motor 91a and the axis of the rotating shaft 21b of the reel 21 are on the same straight line L. Is arranged. Accordingly, the rotation of the reel electric motor 91a can be transmitted to the reel 21 without using a pulley, a belt member, or the like, and the power transmission system to the reel 21 can be configured in a compact manner.

  A reduction gear 91 b is provided between the output shaft 91 f of the reel electric motor 91 a and the rotation shaft 21 b of the reel 21. The reduction gear 91b is configured by a planetary gear mechanism, for example.

The rotation of the output shaft 91f of the reel electric motor 91a is decelerated by the speed reducer 91b and then transmitted to the rotation shaft 21b of the reel 21 to drive the reel 21. By providing the speed reducer 91b, it is possible to obtain low speed and high torque with a small motor.
In this way, the reel driving device 91 generates power for driving the reel 21 by the reel electric motor 91a and the speed reducer 91b.

The reduction gear 91b enters the reel 21 from the side (left side). The inside of the reel 21 is a space surrounded by the left and right reel frames 21c and the tine mounting rod 21d.
As described above, the reel driving device 91 is provided on the side portion of the reel 21 and has a portion (decelerator 91 b) that enters the reel 21. This makes it possible to suppress the amount of protrusion that the reel drive device 91 protrudes laterally from the reel 21, and to reduce the amount of protrusion of the reel drive device 91 from the cutting width W (progress of the reel drive device 91). It is possible to suppress. In the present embodiment, the reel electric motor 91a protrudes outside the reel 21, but the present invention is not limited to this. The speed reducer 91b is further disposed in the reel 21, and the reel electric motor 91a is also a reel. 21 may be included. As a result, it is possible to further reduce the allowance for the reel drive device 91.

  Further, the combine 1 is provided with the crank mechanism for maintaining the rotation posture of the tine 21e constant, and the reel electric motor 91a is provided on the left side of the reel 21, thereby obstructing the crank mechanism. Instead, the reduction gear 91b can be protruded into the reel 21.

In the above embodiment, the reel driving device 91 is configured by the reel electric motor 91a and the speed reducer 91b. However, the present invention is not limited to this, and the reel driving device 91 is configured by only the reel electric motor 91a. May be. More specifically, the combine 1 arranges the axis of the output shaft 91f of the electric motor 91a for reels and the axis of the rotation shaft 21b of the reel 21 on the same straight line L, and sets the output shaft 91f of the electric motor 91a for reels. Further, it is configured to be directly connected to the rotating shaft 21b of the reel 21. The crank mechanism is provided on the left and right one side (right side) of the reel 21, the reel electric motor 91 a is provided on the left and right other side (left side) of the reel 21, and the reel electric motor 91 a is disposed inside the reel 21. Get in.
Thereby, it is possible to suppress the allowance for the reel electric motor 91a. Further, the reel electric motor 91a can be inserted into the reel 21 without being obstructed by the crank mechanism. In addition, the rotation of the reel electric motor 91a can be transmitted to the reel 21 without using a pulley, a belt member or the like, and the power transmission system to the reel 21 can be configured in a compact manner.

DESCRIPTION OF SYMBOLS 1 Combine 20 Cutting part 21 Reel 21b Rotating shaft 91 Reel drive device 91a Reel electric motor 91b Reducer 91f Output shaft

Claims (4)

A cutting part having a reel that scrapes the cereal and a driving device for the reel that generates power for driving the reel;
The reel driving device has a portion that enters the reel,
Combine. The reel driving device has a motor,
The axis of the output shaft of the motor and the axis of the rotation shaft of the reel are arranged on the same straight line,
The combine according to claim 1. The reel driving device has a speed reducer interposed between the motor and the reel,
The combine according to claim 2. The reel has a structure in which a plurality of tines are mounted in parallel on a tine mounting rod horizontally mounted across the left and right reel frames,
The left and right sides of the reel are provided with a crank mechanism for maintaining a constant rotation posture of the tine, and the reel driving device is provided on the left and right sides of the reel.
The combine as described in any one of Claims 1-3.

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