JP4956139B2 - Agricultural machine - Google Patents

Description

  The present invention relates to an agricultural machine that can perform an appropriate offset operation.

  Conventionally, for example, a pretreatment body (banking body) equipped with a tilling rotor mounted on the rear part of a tractor that is a traveling machine body, receiving power from the tractor, and cultivating a part of the main fence and the field to raise it into a bowl shape; There is provided a drum-shaped trimming body (crown-forming body) that is formed into straw while rotating the soil cultivated by the pretreatment body, and the pretreatment body and the trimming body are supported by one frame structure, and one A wrinkle coater configured to transmit power from the transmission frame to the pretreatment body and the trimming body, wherein the pretreatment body and the trimming body can be adjusted in a horizontal direction with the transmission frame as a rotation center, and 2. Description of the Related Art A plastering machine is known in which a base side of a transmission frame is supported so that a horizontal offset amount can be adjusted via a parallel link with respect to a main body side frame (see, for example, Patent Document 1).

  However, in this wrinkle coater, the forward traveling of the tractor and the drive rotation of the pretreatment body and the trimming body are stopped at the corner of the field, and the electric cylinder is extended to rotate the pretreatment body and the trimming body by 180 degrees. After this, the drive rotation of the pretreatment body and the trimming body must be restarted to cause the tractor to travel backward, and there is a possibility that the offset operation cannot be performed efficiently.

  Thus, for example, a hulling machine shown in FIG. 9 is known as a hulling work that is a continuous offset work at a corner of a farm field.

  9 is connected to a fixed machine frame 1 connected to a tractor T, which is a traveling vehicle, and to the fixed machine frame 1 so as to be rotatable about a first rotation center axis X1 in the vertical direction. Provided to the movable machine frame 3, the movable machine frame 3 connected to the rotary arm body 2 so as to be rotatable about the second rotation center axis X 2 in the vertical direction. In addition, it is provided with glazing means (working means) 4.

Then, when the tractor T turns forward in the corner of the field (for example, when turning left), the turning arm body 2 rotates with respect to the stationary machine frame 1 and the movable machine frame 3 turns with respect to the turning arm body 2. Based on the above, the smearing means 4 performs the smearing work while moving forward.
JP 2003-199405 A

  However, as shown in FIG. 9, in this smearing machine, the movement trajectory of the smearing means 4 has an arc shape near the end of the scissors, and the smearing means 4 may not move in a straight line toward the front. .

  This invention is made | formed in view of such a point, and it aims at providing the agricultural working machine which can move an operation | work means linearly and can perform an appropriate offset operation | work by the work means.

The agricultural machine according to claim 1 is a fixed machine frame coupled to the traveling vehicle, and a telescopic rotating body coupled to the fixed machine frame so as to be rotatable about a first rotation center axis in the vertical direction. And a movable machine frame coupled to the pivoting body so as to be pivotable about a second pivot center axis in the vertical direction, and a working means provided on the movable machine frame, wherein the traveling at the corner of the farm field Based on the rotation of the rotating body with respect to the fixed machine frame, the expansion and contraction of the rotating body, and the rotation of the movable machine frame with respect to the rotating body during forward turning of the vehicle, the working means is linearly directed forward. A farm working machine that performs an offset work while moving, and a first rotation driving means for rotating the rotating body about the first rotation center axis with respect to the fixed machine frame; The movable machine frame is rotated about the second rotation center axis. Electrically connected to the second rotation driving means, the expansion / contraction driving means for expanding / contracting the rotating body, the first rotation driving means, the second rotation driving means, and the expansion / contraction driving means. Control means for controlling the drive means, and the rotating body is connected to the fixed frame so as to be rotatable about the first rotation center axis, and to the first arm in the vertical direction. The movable machine frame includes a second arm connected to be rotatable about the second rotation center axis .

The farm machine according to claim 2 is the farm machine according to claim 1, wherein the base end of the first rotation drive means is rotatably attached to the stationary machine frame, and the tip of the first rotation drive means is the first. A second free arm that is pivotally attached to a first free arm that pivots about a single pivot center axis and that has a proximal end of a second pivot drive means that pivots about a second pivot center axis. A distal end of the second rotational drive means is pivotally attached to the movable machine frame, a base end of the telescopic drive means is attached to the first free arm, and a distal end of the telescopic drive means Is attached to the second free arm, and when the telescopic drive means is operated, the rotating body expands and contracts by rotating the second arm about the rotating central axis with respect to the first arm. It is.

  According to the present invention, when the traveling vehicle turns forward in the corner of the field, the working means moves forward based on the rotation of the rotating body relative to the stationary frame, the expansion and contraction of the rotating body, and the rotation of the movable frame relative to the rotating body. Therefore, the working means can be moved linearly and an appropriate offset work can be performed by the working means.

A related technique of the agricultural machine according to the present invention will be described with reference to the drawings.

  In FIG. 1 to FIG. 4, reference numeral 10 denotes a hull coater which is a farm working machine, and this hull coater 10 is a towed hull coater used by being connected to the rear part of a tractor T which is a traveling vehicle.

  The wrinkle coater 10 includes a fixed machine frame (such as a hitch fixed machine frame) 11 that is connected and fixed to the rear portion of the tractor T via a three-point link (worker lifting support device) T1.

  The fixed machine frame 11 has a tractor connecting portion 12 that is a connecting portion. The tractor connecting portion 12 has, for example, a central top mast 14 with a top pin 13 attached to the tip and a lower pin 15 attached to the tip. It consists of left and right lower arms 16. The fixed machine frame 11 has a shaft holding portion, and an input shaft 17 is rotatably provided on the shaft holding portion, and the input shaft 17 is connected to the PTO shaft of the tractor T via a universal joint or the like.

  Further, the fixed machine frame 11 has a frame portion 19, and the frame portion 19 has a longitudinal shape and a base of a rotating body (rotating expansion / contraction means such as a rotating arm body) 21 that can extend and contract along the longitudinal direction. A front end portion, which is an end portion, is connected to be rotatable about a first rotation center axis (rotation fulcrum) X1 in the vertical direction. A movable machine frame 22 is connected to the rear end, which is the front end of the rotating body 21, so as to be rotatable about a second rotation center axis (rotation fulcrum) X2 in the vertical direction.

  The movable machine frame 22 includes a movable machine frame for turning the rotating body 21 with respect to the stationary machine frame 11, expansion and contraction of the rotating body 21, and a movable machine frame for the rotating body 21 when the tractor T is turned forward in the corner of the field. On the basis of the rotation of 22, there is provided a glazing means (working means) 23 for performing a glazing work that is an offset work while moving in a straight line along the heel.

  Further, the wrinkle coater 10 includes a first rotation driving means (first rotation cylinder) 26 for rotating the rotating body 21 around the first rotation center axis X1 with respect to the fixed machine frame 11, and the rotating body. A second rotary drive means (second rotary cylinder) 27 for rotating the movable machine frame 22 with respect to the second rotary central axis X2 with respect to 21 and a longitudinal rotary body 21 are provided on the rotary body 21. An expansion / contraction drive means (extension cylinder) 28 for extending and contracting along the longitudinal direction, and a detection signal from a detection means (not shown) such as a wrinkle detection sensor electrically connected to these three drive means 26, 27, 28. Control means (not shown) for controlling these three drive means 26, 27, and 28 is provided. These drive means 26, 27, 28 are each composed of, for example, an electro-hydraulic cylinder, etc., and include cylinder portions 26a, 27a, 28a, and rod portions 26b, 27b, 28b that enter and exit the cylinder portions 26a, 27a, 28a have.

  Here, the rotating body 21 is a longitudinal first arm (a first support frame such as an outer support frame) connected to the fixed machine frame 11 so as to be rotatable about a first rotation center axis X1 in the vertical direction. 31 and a first arm 31 slidably provided along the longitudinal direction of the first arm 31, and a movable machine frame 22 is coupled to be pivotable about a second pivot center axis X2 in the vertical direction. And a second arm 32 (second support frame such as an inner support frame).

  The base end of the cylinder portion 26 a of the first rotation driving means 26 is rotatably attached to the frame portion 19 of the fixed machine frame 11, and the tip of the rod portion 26 b of the first rotation driving means 26 is the first arm 31. Attached to the attached portion 33 is rotatable. The base end of the cylinder portion 27a of the second rotation drive means 27 is rotatably attached to the attached portion 34 of the second arm 32, and the tip of the rod portion 27b of the second rotation drive means 27 is the movable machine frame 22. It is attached to the to-be-attached part 35 so that rotation is possible. The base end of the cylinder portion 28 a of the expansion / contraction driving means 28 is attached to the first arm 31, and the tip of the rod 28 b of the expansion / contraction driving means 28 is attached to the second arm 32.

  The lacquering means 23 cultivates the soil of the paddy field and the former paddy, and tightens the soil that has been raised by the embankment body 41 at a position behind the embankment body 41 and a rotatable filling body (rotary) 41 that is raised to the former paddle. It has a rotatable ridge forming body (disk) 42 that solidifies to form a new ridge, and a rotatable upper surface cutting body (pretreatment rotary) 43 that scrapes the upper surface of the main fence at a position in front of the embankment body 41. Yes.

  The embankment body 41 includes, for example, a rotation shaft 44 and a plurality of tilling claws 45 provided on the rotation shaft 44. The ridge forming body 42 includes, for example, a rotary shaft 46, a truncated cone-shaped ridge side surface forming portion 47 provided on the rotation shaft 46 and forming an inclined ridge side surface, and a cylinder provided on the rotary shaft 46 and forming a ridge upper surface. And a ridged upper surface forming portion 48.

  The embankment body 41, the ridge forming body 42, and the upper surface cutting body 43 are all configured to receive power from the input shaft 17 via the power transmission means 50 and drive and rotate in a predetermined direction. The power transmission means 50 is constituted by a joint, an extendable transmission shaft, and the like.

  Next, the operation and the like of the wrinkle coater 10 will be described.

  As shown in FIG. 1, for example, at the corner of a field where one ridge A and another ridge A intersect at right angles, the front end of a tractor T having left and right front wheels T1 and left and right rear wheels T2 is the other ridge A. When the operator riding on the tractor T turns the handle to the left at the time when the tractor T is positioned in the vicinity of the tractor T, the tractor T turns forward while turning forward, that is, moving forward.

  During the forward turning of the tractor, the smearing means 23 of the smearing machine 10 moves linearly toward the front along the reed so as to draw a straight linear movement locus shown in FIG. A continuous padding operation is performed up to the vicinity of the end of one paddle A along one side of the field.

  That is, when the tractor T moves forward in the corner of the field, the hulling means 23 controls the driving means 26, 27, and 28 so that the rotating body 21 rotates relative to the fixed machine frame 11 and the rotating body. Based on the expansion and contraction of 21 and the rotation of the movable machine frame 22 with respect to the rotating body 21, the smearing operation is performed while moving linearly toward the front without leaving the heel along the heel.

  As shown in FIG. 1 and FIG. 9, the length A of the unworked portion by the varnishing means 23 is shorter than the length B of the unworked portion by the conventional glazing means 4, and is not The work load on the work part is reduced. In particular, as the size of the tractor T is larger, the length A of the unworked portion is shorter than the conventional length B. 2 shows a state in which the rotating body 21 is in a standard working state, FIG. 3 shows a state in which the rotating body 21 is extended to the maximum, and FIG. 4 shows a state in which the rotating body 21 is contracted to the maximum.

  As described above, according to the wrinkle coater 10, when the tractor T moves forward and backward in the corner of the field, the rotation of the rotating body 21 with respect to the stationary frame 11 and the expansion and contraction of the rotating body 21 (that is, the first rotation center axis X1 and Based on the change in the distance between the second rotation center axis X2) and the rotation of the movable frame 22 relative to the rotating body 21, the smearing means 23 performs a smearing operation while moving linearly toward the front. Therefore, regardless of the size, characteristics, variation in driving operation, etc. of the tractor T, the padding means 23 is moved in a straight line without moving in a circular arc shape at the corner of the field as in the past. Thus, the appropriate smearing means 23 can perform appropriate smearing work.

  The rotating body 21 is connected to the stationary machine frame 11 so as to be rotatable about the first rotation center axis X1. The first arm 31 is connected to the first arm 31 along the longitudinal direction of the first arm 31. Since the movable machine frame 22 is slidably provided and has the second arm 32 connected to be rotatable about the second rotation center axis X2, the structure can be simplified and manufactured. And maintenance can be facilitated.

  Further, since the hulling means 23 can be hulled to a substantially end position of the hail, it is possible to reduce the burden of manpower work on the unworked portion at the corner of the field.

Next, an embodiment of the agricultural machine according to the present invention will be described with reference to FIGS.

5 to 8, even in the case of the coater 10 according to the embodiment shown in FIG. 5, as in the case shown in FIG. In addition, the smearing means 23 can be moved in a straight line, and the appropriate smearing means 23 can perform appropriate smearing work.

  As shown in FIGS. 5 to 8, the rotating body 21 of the wiping machine 10 is connected to the fixed machine frame 11 so as to be rotatable about the first rotation center axis X in the vertical direction, and functions as a transmission case. A first arm 51 (first transmission case such as a first chain case) 51 serving as a double arm and a movable machine frame 22 provided on the first arm 51 so as to be rotatable about a rotation center axis X3 in the vertical direction. Has a second arm 52 (second transmission case such as a second chain case) 52 which is connected to be rotatable about a second rotation center axis X2 in the vertical direction and also serves as a transmission case. ing.

  Further, the base end of the cylinder portion 26a of the first rotation driving means 26 is rotatably attached to the frame portion 19 of the stationary machine frame 11, and the tip of the rod portion 26b of the first rotation driving means 26 is the base end portion. The first free arm 53 is pivotally attached to the tip of the first free arm 53 that rotates about the first rotation center axis X1. The base end of the cylinder portion 27a of the second rotation driving means 27 is rotatably attached to the attached portion 55 of the second free arm 54 that rotates about the second rotation center axis X2. The tip of the rod portion 27b of the driving means 27 is rotatably attached to the attached portion 35 of the movable machine frame 22. The base end of the cylinder portion 28a of the expansion / contraction driving means 28 is attached to the base end side of the first free arm 53, and the tip of the rod 28b of the expansion / contraction driving means 28 is attached to the second free arm 54.

  As shown in FIG. 8, when the expansion / contraction driving means 28 is operated, the rotating body 21 expands and contracts by rotating the second arm 52 around the rotation center axis X3 with respect to the first arm 51. That is, when the second arm 52 rotates about the rotation center axis X3 with respect to the first arm 51, the distance between the first rotation center axis X1 and the second rotation center axis X2 changes, and the rotating body. 21 expands and contracts. 5 shows a state in which the rotating body 21 is in a standard working state, FIG. 6 shows a state in which the rotating body 21 is extended to the maximum, and FIG. 7 shows a state in which the rotating body 21 is contracted to the maximum.

Although not shown, the power transmission means of the coater 10 shown in FIG. 5 and the like is constituted by a chain or the like housed in the arms 51 and 52. Further, the other components of the coater 10 shown in FIG. 5 and the like are basically the same as those of the coater 10 shown in FIG .

In addition , the agricultural machine may be a grooving machine that performs a grooving operation that is an offset operation, in addition to a trouser that performs a culling operation that is an offset operation.

It is the top view and operation | movement explanatory drawing of the agricultural machine based on the related technology of this invention. It is a top view of the standard working state of the rotation body of an agricultural working machine same as the above. It is a top view of the maximum extension state of the rotation body of an agricultural working machine same as the above. It is a top view of the contracted state of the rotation body of an agricultural working machine same as the above. It is a top view of the standard operation state of the rotation body of the agricultural working machine which concerns on one embodiment of this invention . It is a top view of the maximum extension state of a rotation body same as the above. It is a top view of the most contracted state of a rotation body same as the above. It is operation | movement explanatory drawing of a rotation body same as the above. It is a top view and operation | movement explanatory drawing of the conventional agricultural working machine.

10 Agricultural machine
11 Fixed machine frame
21 Rotating body
22 Movable machine frame
23.
26 First rotation drive means
27 Second rotation drive means
28 Telescopic drive means
51 1st arm
52 2nd arm
53 1st Free Arm
54 2nd free arm X1 1st rotation center axis X2 2nd rotation center axis X3 3rd rotation center axis T Tractor which is a traveling vehicle

Claims (2)

A fixed machine frame connected to the traveling vehicle;
A telescopic rotating body connected to the fixed frame so as to be rotatable about a first rotation center axis in the vertical direction;
A movable machine frame coupled to the rotating body so as to be rotatable about a second rotation center axis in the vertical direction;
Working means provided on the movable machine frame,
At the time of forward turning of the traveling vehicle at a corner of a farm field, the working means is based on rotation of the rotating body with respect to the fixed frame, expansion and contraction of the rotating body, and rotation of the movable frame with respect to the rotating body. A farming machine that performs offset work while moving linearly toward the front ,
First rotation driving means for rotating the rotating body about the first rotation center axis with respect to the fixed machine frame;
Second rotation drive means for rotating the movable frame with respect to the rotating body about the second rotation center axis;
Telescopic drive means for expanding and contracting the rotating body;
A control means electrically connected to the first rotation drive means, the second rotation drive means and the telescopic drive means, and for controlling these three drive means;
The rotating body is
A first arm connected to the fixed frame so as to be rotatable about the first rotation center axis;
The first arm has a second arm which is provided so as to be rotatable about a vertical rotation center axis, and the movable frame is connected to be rotatable about the second rotation center axis. Agricultural machine characterized by that. The base end of the first rotation driving means is rotatably attached to the fixed machine frame,
A tip end of the first rotation driving means is rotatably attached to a first free arm that rotates about a first rotation center axis;
The base end of the second rotation driving means is rotatably attached to a second free arm that rotates about the second rotation center axis.
A tip of the second rotation driving means is rotatably attached to the movable machine frame;
The proximal end of the telescopic drive means is attached to the first free arm;
A tip of the telescopic drive means is attached to the second free arm;
When the expansion / contraction driving means is operated, the rotating body expands and contracts by rotating the second arm about the rotation center axis with respect to the first arm.
The agricultural machine according to claim 1.

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