JP2013085533A - General-purpose combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain, in a general-purpose combine configured to perform maintenance from the upper side of a thrashing unit with a top plate being opened, both higher efficiency of the maintenance operation and simplification of the structure.SOLUTION: The general-purpose combine includes: the thrashing unit 22 for performing thrashing treatment; a ladder 39 disposed on the front end side of an outer lateral side of the thrashing unit 22; a handrail to be held when ascending or descending the thrashing unit 22 through the ladder 39; and the top plate 33 for covering the upper part of the thrashing unit 22, which is supported in such a manner as to be vertically rotatable, the upper side of the thrashing unit 22 being opened and closed by the vertical rotation of the top plate 33. A top plate opening/closing handle 41 which is graspable in ascending and descending of the ladder 39 is provided at a front end portion of the top plate 33 to cause the handle 41 to double as the handrail.

Description

  The present invention relates to a general-purpose combine that facilitates maintenance of a threshing portion.

  A threshing unit that performs threshing processing is provided, and a top plate that covers the top of the threshing portion is supported so as to be vertically rotatable, and the upper side of the threshing portion is opened and closed by the vertical rotation of the top plate, thus opening the upper side A general-purpose combine for performing maintenance in the threshing portion is conventionally known, but since it is necessary to perform maintenance from a high position on the upper side of the threshing portion, an operator needs to climb up and down the threshing portion. It is necessary to open and close the top plate at a high position.

  Under such circumstances, a general-purpose combine shown in Patent Document 1 in which a ladder and a handrail that is gripped when climbing up and down the threshing portion via the ladder is provided around the threshing portion.

Japanese Patent Laid-Open No. 8-187028 (FIG. 2)

In addition to the ladder and handrail shown in the above patent document, if a handle is provided to smoothly open and close the top plate, maintenance from the upper side of the threshing portion can be performed more efficiently, but these members If all are provided, the number of parts increases, the configuration becomes complicated, and the manufacturing cost increases.
The present invention provides a general-purpose combine that achieves both the efficiency of the maintenance work and the simplification of the configuration in a general-purpose combine that performs maintenance from above the threshing portion with the top plate open. It is an issue.

  In order to solve the above-mentioned problem, first, a threshing unit 22 that performs a threshing process is provided, a ladder 39 is disposed on the front end side of the outer side surface of the threshing unit 22, and the threshing unit 22 is climbed up and down via the ladder 39. A general purpose combine that is provided with handrails that are sometimes gripped, supports a top plate 33 that covers the top of the threshing portion 22 so that it can be turned up and down, and that the top side of the threshing portion 22 is opened and closed by turning the top plate 33 up and down. A top plate opening / closing handle 41 that can be gripped when climbing up and down the ladder 39 is provided at the front end of the top plate 33, and the top plate opening / closing handle 41 is also used as the handrail.

  Secondly, the feeder 7 that conveys the cereals toward the threshing unit 22 is arranged in front of the threshing unit 22, and the outside of the feeder 7 so that the rear end of the side view ladder 39 is close to the front end of the threshing unit 22. A ladder 39 is arranged in a space S formed in the side and in front of the threshing portion 22, and the front portion of the top plate 33 is configured by an inclined surface 33 a that is inclined downward toward the front, along the inclined surface 33 a as viewed from the side. The top plate opening / closing handle 41 is provided on the inclined surface 33a so that the top plate opening / closing handle 41 is inclined.

  The handle for opening and closing the top plate and the handrail gripped when climbing up and down the threshing portion via the ladder are important members for efficiently performing the maintenance work of the threshing portion with the top plate open. Since the plate opening / closing handle is also used as a handrail and it is not necessary to provide each of them separately, it is possible to simplify the configuration together with the efficiency of the maintenance work.

  In addition, a feeder that conveys the cereal toward the threshing part is arranged in front of the threshing part, and the rear side of the side view ladder is close to the front end of the threshing part, on the outer side of the feeder and in front of the threshing part. A ladder is arranged in the formed space, and the front portion of the top plate is configured by an inclined surface that is inclined downward toward the front, and the top plate opening / closing handle is inclined along the inclined surface in a side view. If the plate opening / closing handle is provided on an inclined surface, even if the ladder is provided close to the threshing portion, and this saves space, the top plate opening / closing handle, which is also used as a handrail, is located at a reasonable distance from the ladder. Therefore, the top plate opening / closing handle can be easily grasped when the ladder is climbed up and down, and the top plate is prevented from being deformed because the handle is provided at the bent portion of the top plate.

It is a side view of the general purpose combine to which the present invention is applied. It is a top view of the general purpose combine to which the present invention is applied. It is a principal part front view of the general purpose combine which shows the state at the time of maintaining the upper part side of a threshing part.

  1 and 2 are a side view and a plan view of a general-purpose combine to which the present invention is applied. The general-purpose combine shown in the figure is for harvesting crops such as rice, wheat, and beans. The general-purpose combine includes a traveling machine body 2 having a pair of left and right crawler type traveling devices 1L and 1R, and a front of the traveling machine body 2. And a reel 4 that extends in the left-right direction, and a movable mechanism 6 that supports the reel 4 on the side of the cutting unit 3 so that the reel 4 can be moved up and down and moved back and forth. .

  The cutting unit 3 is integrally provided with a feeder 7 in the rear half and a cutting frame 8 in the front half, and a weeding body 9 projects forward from the left and right side walls of the cutting frame 8. A columnar scooping auger 11 extending in the left-right direction is supported on the lower part and the rear part between the left and right side walls of the left and right side walls so as to be rotatable about an axis. A cutting blade 12 is installed. Incidentally, the reel 4 is located between the left and right side walls of the plan view mowing frame 8.

  The feeder 7 includes a feeder conveyor 13 in the front-rear direction for conveying the harvested crop culm backward in the feeder case 7a, and the feeder 7 is entirely located on the side of the control unit 14 on the traveling machine body 2 side, which will be described later. The rear end portion of the feeder 7 is supported by the front portion of the traveling machine body 2, and the cutting frame 8 is formed in a left-right range extending from the front side of the control portion 14 to the front side of the feeder 7.

  The reel 4 is formed into a prismatic shape in the horizontal direction in which the periphery and both left and right sides communicate with each other inside and outside and the inside is hollow. The reel 4 can be driven to rotate about its own axis by a rotation shaft 17. In addition to being supported by the movable mechanism 6, reel tines 18 are arranged around the reel 4 at predetermined intervals.

  The crop culm in the field that has been picked up by the rotating reel 4 is cut by the cutting blade 12 that is driven to slide back and forth in the left and right direction, and is picked up by the picking auger 11 to the feeder 7 side. The crop culm introduced on the feeder 7 side is conveyed rearward to the traveling machine body 2 side by the feeder conveyor 13. Incidentally, when the reel 4 is moved up and down or moved back and forth by the movable mechanism 6, the position adjustment of the front and rear and up and down of the reel 4 is performed.

  In the left half of the traveling machine body 2, a threshing unit 22 for performing threshing processing of cereals such as harvested rice and wheat and sorting grains such as cocoons from the processed product threshed is installed. A Glen tank 23 that stores grains from the threshing unit 22 is disposed in the right half of the traveling machine body 2, and the control unit 14 into which an operator gets is installed in front of the Glen tank 23.

  The threshing unit 22 includes a handling chamber 24 into which crop culm from the feeder conveyor 13 is introduced, and a sorting chamber 26 formed immediately below the handling chamber 24. An extending cylindrical handling cylinder 27 is rotatably supported around its own axis, and a swinging sorter 28 that moves back and forth is installed in the upper part of the sorting chamber 26. A tang fan 29 for raising the sorting air obliquely upward at the rear is arranged, and the first spiral 31 and the second spiral 32 are arranged in the front and rear in the middle in the front-rear direction in the lower part of the sorting chamber 26.

  The cereals introduced from the feeder 7 to the threshing unit 22 are threshed while being conveyed backward by the rotating barrel 27 in the handling chamber 24, and the processed product falls into the sorting chamber 26. The processed material that has fallen into the sorting chamber 26 is swayed and sorted by the swaying sorter 28 and sorted (wind-selected) by the sorting wind.

  Specifically, the first thing that falls on the first spiral 31 on the front side without being affected by the sorting wind, and the second thing that falls on the second spiral 32 on the rear side slightly affected by the sorting wind, Sorted into waste such as sawdust blown upward and rearward under the influence of the sorting wind. By the way, the first thing is conveyed as grain in the Glen tank 23, the second thing is reintroduced into the sorting chamber 26 and wind-selected, and the discharged matter is discharged from the rear end side of the traveling machine body 2 to the outside of the machine. The

  In the threshing portion 22 having the above configuration, the upper side of the handling chamber 24 is covered by the top plate 33, the outer side of the handling chamber 24 is covered by the side plate 34, and the outer side of the front portion of the sorting chamber 26 is covered by the front cover 36. The rear side of the sorting chamber 26 is covered with a rear cover 37.

  Specifically, the threshing unit 22 is supported by the threshing unit 22 so that the top plate 33 rotates up and down about the left and right inner ends, and the side plate 34 rotates up and down about the upper end. It is supported by. The top plate 33 opens the upper portion of the handling chamber 24 by an opening operation that rotates upward, and closes the upper portion of the handling chamber 24 by a closing operation that rotates downward. Further, the side plate 34 opens the outside side of the handling chamber 24 by an opening operation that rotates to the left and right outside, while closing the outside side of the handling chamber 24 by a closing operation that pivots to the left and right inside. State.

  The grain in the Glen tank 23 is discharged out of the machine by the discharge auger 38 supported at the rear end of the traveling machine body 2. Specifically, the base end portion of the discharge auger 38 is supported on the right side of the rear end portion of the traveling machine body 2 so that the whole can swing up and down and can be horizontally rotated. The discharge part 38a is provided, and the discharge part 38a of the discharge auger 38 is moved to a predetermined position by swinging up and down or horizontally, and the grain can be discharged on the spot.

Next, based on FIG. 1 thru | or FIG. 3, the maintenance means of the threshing part 22 is demonstrated.
FIG. 3 is a front view of an essential part of the general-purpose combiner showing a state when the upper side of the threshing part is maintained. In the said general purpose combine, when the top plate 33 is opened and opened and maintenance of the handling cylinder 27 and the like is performed from the upper side of the threshing unit 22, it is necessary to climb to the threshing unit 22, and therefore, the threshing unit 22 is climbed up and down. A ladder 39 is provided on the front end side of the outer side surface of the threshing portion 22, and a handrail 41 that is gripped when the threshing portion 22 is climbed up and down via the ladder 39, and is gripped when the handrail 41 rotates the top plate 33. It is also used as a top plate opening / closing handle. Details will be described below.

  The top plate 33 is in the closed state and is located on the center side of the upper surface of the threshing portion 22, and the front portion of the top plate 33 becomes a front inclined surface (inclined surface) 33 a that is inclined downward toward the front. The left portion 33 is a left inclined surface 33b inclined downward toward the left side, and the right portion of the top plate 33 is a right inclined surface 33c inclined downward toward the right side.

  The top plate opening / closing handle 41 that also functions as the handrail is formed by bending a round pipe into a reverse U shape when viewed from the front, and is fixedly attached to the front end portion of the top plate 33. Specifically, the top plate opening / closing handle 41 includes a horizontal portion 42 that extends horizontally in the right direction, a left inclined portion 43L that is located to the left of the horizontal portion 42 and is inclined downward to the left, and a horizontal portion. A right inclined portion 43R that is located on the right side of 42 and is inclined downward toward the right side, and a mounting seat 44 that is integrally extended from the lower rear end sides of the left and right inclined portions 43L and 43R toward the side closer to each other, 44.

  When the top plate opening / closing handle 41 is attached to the front end of the top plate 33 by bolting the left and right mounting seats 44 and 44 in a state where the left and right mounting seats 44 are in surface contact with the front inclined surface 33a of the top plate 33, The plate opening / closing handle 41 is inclined along the inclined surface 33a before the side view, and the inclined portions 43L and 43R on the left and right in the front view are inclined along the left and right inclined surfaces 33b and 33c of the top plate 33. The top plate opening / closing handle 41 protrudes one front side from the front inclined surface 33a. With this configuration, the top plate opening / closing handle 41 can be installed in a large range in the lateral width of the top plate 33 having the inclined surfaces 33b and 33c on the left and right.

  The ladder 39 is composed of a pair of vertical frames 46 and 46 arranged at a predetermined interval in the front and rear, and a horizontal frame 47 in the front and rear direction (horizontal direction) installed between the vertical frames 46 and 46. A plurality of horizontal frames 47 are arranged in parallel in the vertical direction at predetermined intervals. The ladder 39 is disposed in a space S formed on the outer side of the feeder 7 that conveys the cereal toward the threshing portion 22 and in front of the threshing portion 22, and the rear end of the side view ladder 39 is the threshing portion 22. Located on the front end side. And this ladder 39 is formed in the up-and-down range from the lower end height of the threshing part 22 to the height of the lower end side of the top plate opening / closing handle 41, and is attached to the front end side of the threshing part 22 via the bracket 48. It is fixed.

  Incidentally, the auger 38 is stored in a state where it is lying down in a range from the right side of the rear end of the traveling machine body 2 to the left side of the cutting unit 3 when not in use.

  According to the general-purpose combine having this configuration, the worker P holds the left inclined portion 43L or the horizontal portion 42 of the handrail 41 and climbs up and down the threshing portion 22 in a state in which the foot is placed on the horizontal frame 47 of the ladder 39. In addition to being easy to perform, it is also possible to climb up and down by grabbing the auger 38 in an unused state. And on the upper surface of the threshing unit 22, the worker P who puts his foot on the step 22a formed so as to surround the top plate 33 releases the lock, opens the top plate 33, and the threshing unit 22 Maintenance of the handling cylinder 27 and the like can be efficiently performed from above.

7 Feeder 22 Threshing part 33 Top plate 33a Front inclined surface (inclined surface)
39 Ladder 41 Top plate opening / closing handle (handrail)
S space

Claims (2)

  When the threshing part (22) which performs a threshing process is provided, a ladder (39) is arranged on the front end side of the outer side surface of the threshing part (22), and the threshing part (22) is climbed up and down via the ladder (39). A handrail for gripping is provided, and a top plate (33) that covers the upper portion of the threshing portion (22) is supported so as to be vertically rotatable, and the upper side of the threshing portion (22) is opened and closed by the vertical rotation of the top plate (33). A top plate opening / closing handle (41) that can be gripped when climbing up and down the ladder (39) is provided at the front end of the top plate (33), and the top plate opening / closing handle (41) A general-purpose combiner also used as the handrail.   A feeder (7) that conveys cereals toward the threshing part (22) is arranged in front of the threshing part (22) so that the rear end of the side view ladder (39) is close to the front end of the threshing part (22). The ladder (39) is arranged in the space (S) formed on the outer side of the feeder (7) and in front of the threshing part (22), and the front part of the top plate (33) is inclined downward toward the front. The top plate opening / closing handle (41) is inclined along the inclined surface (33a) so that the top plate opening / closing handle (41) is inclined along the inclined surface (33a) when viewed from the side. The general purpose combine according to claim 1 provided in the above.

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