JP5099882B2 - Agricultural machine - Google Patents

Description

  The present invention relates to an agricultural machine capable of easily switching a working means to a desired working state.

Conventionally, for example, a machine frame connected to a tractor, which is a traveling vehicle, and a left-right position changeable via a parallel link to this machine frame, which is selectively switched between a work state and a storage state, and is an offset work in the work state Working means for performing a smearing operation, driving means such as a cylinder device for rotating the parallel link with respect to the machine frame, and operating means for controlling the driving means to stop the working means at the working position. Agricultural machines are known (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 10-290601

  However, in the above conventional farm work machine, when switching the working means to the working state, the worker must visually check the working means and keep pressing the operation button of the operating means until the working means reaches the working position, There is a risk that it takes time to switch the working means to the working state and the working position is not stable.

  This invention is made | formed in view of such a point, and it aims at providing the agricultural machine which can switch a working means to a desired working state easily.

The agricultural machine according to claim 1 is provided with a machine frame connected to the traveling vehicle, and the machine frame can be changed in a left-right position, and is selectively switched between a work state and a storage state, and performs an offset work in the work state. Working means, switching operation means for switching the working means between the storage state and the working state , and position setting for setting a set work position corresponding to the traveling vehicle from a plurality of work positions A storage unit for storing the operation unit ; and a detection unit configured to detect whether or not the operation unit is positioned at a preset operation position among a plurality of operation positions by the operation unit for position setting. When the switching operation means in a state when it is operated, the changes the lateral position relative to the machine frame of the work unit, the operating means for the position setting the storage state based on the detection of the working means the detection means And it serves as a work state located a preset working position from among a plurality of work positions.

  According to a second aspect of the present invention, there is provided the agricultural machine according to the first aspect, further comprising fine adjustment operation means for finely adjusting the left and right positions of the working means relative to the machine frame.

The agricultural machine according to claim 3 is the agricultural machine according to claim 2, wherein the driving means outputs a driving force to change the left and right positions of the working means relative to the machine frame, the control means for controlling the driving means, and the traveling An operation unit that is disposed in the vicinity of a driver's seat of a car and is a remote operation unit that transmits an operation signal to the control unit, and the operation unit includes a switching operation unit, a position setting operation unit, and a fine adjustment operation. It has a means.

According to the invention of claim 1, when the switching operation means when the storage state of the work unit is operated, it is changed lateral position relative to the machine frame of the work unit, the work unit of the plurality at a location setting operation means Since the working state is a working state located at a preset working position from among the working positions , the working means can be easily switched to a desired working state.

According to the second aspect of the present invention, since the fine adjustment operation means for finely adjusting the left and right position of the work means with respect to the machine frame is provided, the left and right positions of the work means with respect to the machine frame are adjusted by the operation of the fine adjustment operation means. Fine adjustment .

  An embodiment of an agricultural machine according to the present invention will be described with reference to the drawings.

  In FIG. 1 to FIG. 3, reference numeral 1 denotes an agricultural machine. The agricultural machine 1 is connected to the rear portion of a tractor 2, for example, a traveling vehicle, and is an offset operation while moving along the rod A by forward traveling of the tractor 2. It is a glazing machine (offset working machine) that performs glazing work.

  The tractor 2 includes a tractor body 3 that is a main body, front wheels 4 are provided on both left and right sides of the front portion of the tractor body 3, and rear wheels 5 are provided on both left and right sides of the rear portion of the tractor body 3. At the rear part of the tractor body 3, a three-point link hitch part (worker lifting support device) 6 is provided.

  Agricultural equipment 1 has a machine frame 11 connected to a three-point link hitch portion 6 at the rear of the tractor 2 via a coupler 7, and a left and right position via a pair of left and right parallel links 13 as connection means. Work means 12 is provided that can be changed and is selectively switched between a work state and a storage state, and is located at a set work position in the work state to perform a drape work.

  The machine frame 11 has a shaft holding portion 16, and an input shaft 17 in the front-rear direction is rotatably provided on the shaft holding portion 16. The PTO shaft of the tractor 2 is connected to the input shaft 17 through a transmission shaft, a universal joint, and the like. In addition, the machine casing 11 has a tractor connecting portion 18 as a connecting portion at the front portion. A three-point link hitch portion 6 at the rear portion of the tractor 2 is connected to the tractor connecting portion 18 via a coupler 7. The tractor connecting portion 18 is engaged with a central top mast 21 having a top pin 20 attached to the tip of the coupler 7 so as to be detachably engaged with the upper engaging hook portion 19 of the coupler 7 and a lower engaging hook portion 22 of the coupler 7. A lower pin 23 detachably engaged has two left and right lower arms 24 attached to the tip. Further, the machine casing 11 has a pair of left and right link connecting portions 26 at the rear. A front end portion of the parallel link 13 is rotatably connected to the link connecting portion 26 via a vertical shaft 27.

  The working means 12 includes a movable machine frame 31 that can be changed in the left-right position via two parallel links 13 on the machine frame 11, that is, for example, movable in the left-right direction by the rotation of the parallel links 13, and a movable machine frame 31 is a rotary body 32 that is rotatably provided at one front side of the 31 and protrudes laterally from the tractor 2. A ridge-forming body (disk that is attached to the rear part so as to be rotatable, and that forms a new ridge A by compacting the soil raised by the banking body 32 in a state of projecting laterally from the tractor 2 behind the banking body 32 ) 33. In addition, the embankment body 32 and the ridge forming body 33 constitute a working portion 35 that performs a dip coating operation that is an offset operation while moving along the ridge A in a state of protruding sideways from the tractor 2.

  The embankment 32 has a rotation shaft 36 in the left-right direction, and a plurality of tilling claws 37 are attached to the rotation shaft 36. The ridge forming body 33 has a left and right rotation shaft 38, and the rotation shaft 38 forms a frustoconical ridge side surface forming member 39 that forms an inclined ridge side surface and a horizontal ridge surface. A cylindrical bowl upper surface forming member 40 is attached. A power transmission means (not shown) for transmitting power from the input shaft 17 is connected to the rotary shaft 36 of the embankment body 32 and the rotary shaft 38 of the ridge forming body 33, and receives power from the power transmission means. Drives and rotates in a predetermined direction.

  In addition, the farm work machine 1 includes a drive unit 41 that outputs a driving force to change the left-right position of the work unit 12 with respect to the machine frame 11. The driving means 41 is constituted by an electrohydraulic cylinder 42 which is an expansion / contraction driving means for horizontally rotating the parallel link 13 with respect to the machine frame 11 by expansion / contraction. The electrohydraulic cylinder 42 includes a cylinder portion 43 and a rod portion 44 that enters and exits the cylinder portion 43. The base end portion of the cylinder portion 43 is rotatably connected to the movable machine frame 31 of the working means 12 via a vertical shaft 45, and the distal end portion of the rod portion 44 is connected to the machine frame 11 via a vertical shaft 46. And are pivotally connected.

  The electric hydraulic cylinder 42 is electrically connected to a control unit 50 which is a control means including a control box for controlling the electric hydraulic cylinder 42 and the like. The control unit 50 is attached to the upper surface portion 31a of the movable machine frame 31 of the working means 12. The control unit 50 is electrically connected to an operation unit 49 which is a remote operation means including a switch box for transmitting an operation signal to the control unit 50. The operation unit 49 is disposed in the vicinity of the driver seat of the tractor 2.

  Here, as shown in FIG. 4, the operation unit 49 corresponds to the switching operation means 51 for switching the state of the working means 12 from the storage state to the working state, and the size (width dimension, etc.) of the tractor 2. A position setting operation means 52 for setting a setting work position (offset position corresponding to the tractor width), a power on / off operation means 53, and a power lamp 54 that is turned on when the power is on. .

  The switching operation means 51 is configured by a toggle switch 56 that is provided on the unit case 55 and has a right-side down posture and a left-side down posture. When the toggle switch 56 is tilted to the right, the working means 12 is switched to a working state (the state indicated by the solid line in FIG. 3) where the working means 12 is painted. Is switched to a retracted state (a state indicated by a two-dot chain line in FIG. 3) which is located at the position and does not protrude sideways from the tractor 2.

  Further, the power on / off operation means 53 is configured by a toggle switch 57 provided in the unit case 55 and configured to be in a forward tilted posture and a backward tilted posture. When the toggle switch 57 is in the forward tilted posture, the power is turned on and the power lamp 54 is lit. When the toggle switch 57 is in the backward tilted posture, the power is turned off.

  On the other hand, the position setting operation means 52 is configured by a substantially columnar operation knob member 58 provided on the unit case 55 so as to be capable of rotating. For example, the operation knob 58 can be rotated and adjusted in stages, and can be positioned at a plurality of setting positions, that is, for example, a first setting position to a seventh setting position. On the surface of the unit case 55 of the operation unit 49, numerals 1 to 7 are displayed corresponding to the set positions of the operation knob member 58.

  Moreover, the farm work machine 1 is provided with the detection means 61 which detects whether the work means 12 is located in the setting work position preset by the operation knob member 58, as shown in FIG. 1 thru | or FIG. . The control unit 50 stops the electrohydraulic cylinder 42 of the drive means 41 when it is determined that the work means 12 is located at a preset work position based on the detection signal from the detection means 61. The detection means 61 is constituted by a rotation angle sensor 62 provided at the front end of one parallel link 13 for detecting the rotation angle of the parallel link 13, for example. The detection means 61 may use a stroke sensor, a potentiometer, a rotary switch, a plurality of limit switches, or the like, or a combination of these as appropriate.

  Next, the operation of the agricultural machine 1 will be described.

  As shown in FIG. 4, the operator turns the power on by operating the toggle switch 57 in a state where the operation knob 58 which is the position setting operation means 52 is positioned at the second setting position, for example. When the toggle switch 56, which is the operation means 51, is operated to switch to the right-tilt posture, the parallel link 13 is rotated by the operation of the electrohydraulic cylinder 42. As a result, the working means 12 moves rightward from the retracted state. The working state shown in FIG. 2 is obtained.

  That is, when the toggle switch 56 is operated, the left and right positions of the working means 12 with respect to the machine frame 11 are changed based on the driving force from the electrohydraulic cylinder 42 which is the driving means 41, and the working means 12 is changed to the operation knob member 58. Thus, the work state is set at a preset work position (offset position corresponding to the second set position). In the working state shown in FIG. 2, the distance between the front-rear direction line (the lower end line) passing through the enlarged diameter end portion of the eaves-forming body 33 and the front-rear direction center line passing through the center in the width direction of the tractor 2. The certain offset amount a is, for example, 800 mm.

  Here, for example, when using the tractor 2 of FIG. 1 larger than the tractor 2 of FIG. 2, the operator rotates the operation knob 58 clockwise to change from the second setting position to the fourth setting position. . After this change, when the toggle switch 56, which is the switching operation means 51, is operated to a right-tilt posture, the left and right positions of the work means 12 with respect to the machine frame 11 are changed based on the driving force from the electrohydraulic cylinder 42, and the work The working state is such that the means 12 is located at the set work position (offset position corresponding to the fourth set position) preset by the operation knob 58. In the working state shown in FIG. 1, the offset amount a is, for example, 900 mm.

  For example, when the operation knob 58 is positioned at the first setting position, the offset amount a is 750 mm. When the operation knob member 58 is positioned at the third setting position, the offset amount a is 850 mm and is positioned at the fifth setting position. In this case, the offset amount a is 950 mm, the offset amount a is 1000 mm when positioned at the sixth set position, and the offset amount a is 1050 mm when positioned at the seventh set position.

  Thus, according to the agricultural working machine 1, when the toggle switch 56 as the switching operation means 51 is operated when the working means 12 is stored, the machine frame of the working means 12 is based on the driving force from the electric hydraulic cylinder 42. Since the left and right positions with respect to 11 are changed, and the working means 12 is in a working state in which the working means 12 is located at a preset working position set by the operation knob 58, the working means 12 can be easily switched to a desired working state. Can do. In other words, the work means 12 can be moved to a preset work position corresponding to the size of the tractor 2 only by switching the toggle switch 56, the set work position is also stable, and the work means 12 can be appropriately and easily brought into a desired working state.

  As shown in FIG. 5, the operation unit 49 may include a fine adjustment operation means 65 for finely adjusting the left and right positions of the working means 12 with respect to the machine casing 11. The fine adjustment operation means 65 is constituted by a slide lever member 66 provided on the unit case 55 so as to be movable and adjustable in the left-right direction. When the slide lever member 66 is slid in the right direction, the electrohydraulic cylinder 42 is extended according to the slide amount, the working means 12 is moved to the right side, and when the slide lever member 66 is slid in the left direction, the motor is driven according to the slide amount. The hydraulic cylinder 42 is contracted so that the working means 12 moves to the left side. That is, for example, according to the operation amount of the slide lever member 66, the horizontal position of the working means 12 with respect to the machine frame 11 can be finely adjusted within a range of less than 50 mm. In this configuration, the left and right positions of the working means 12 with respect to the machine frame 11 can be finely adjusted by operating the slide lever member 66 that is the fine adjusting operation means 65.

  The fine adjustment operation means 65 may be constituted by a pair of left and right push button switches 67 as shown in FIG. While the right pushbutton switch 67 is being pressed, the working means 12 moves to the right based on the driving force from the electrohydraulic cylinder 42, and while the left pushbutton switch 67 is being pressed, Based on the driving force from the cylinder 42, the working means 12 moves to the left.

  Further, the switching operation means 51 is not limited to that constituted by the toggle switch 56, and may be constituted by a pair of left and right push button switches 68 as shown in FIG. If the right push button switch 68 is pressed for a certain time, that is, if it is pressed for a long time, the working means 12 enters the working state. When the push button switch 68 is pressed for less than a certain time, the working means 12 moves in the corresponding direction only while the push button switch 68 is being pressed.

  Further, the position setting operation means 52 is not limited to the one constituted by the operation knob member 58 that can be rotated and adjusted, for example, by a slide lever member that can be moved, a push button switch, or the like. Also good.

  Further, the position setting operation means 52 is not limited to one that can adjust the setting work position (offset amount a) corresponding to the tractor 2 in a stepped manner, and may be one that can be adjusted steplessly.

  Further, the driving means 41 is not limited to the electric hydraulic cylinder 42, and may be, for example, an electric motor or a hydraulic cylinder.

  The agricultural machine 1 may be a grooving machine or the like that performs grooving work that is offset work.

It is a top view of the agricultural working machine which concerns on one embodiment of this invention. It is a top view of the state which connected the agricultural working machine same as the above to the tractor from which size differs. It is a top view of an agricultural working machine same as the above. It is a top view of the control unit of a farm work machine same as the above. It is a top view of the modification of a control unit same as the above. It is a top view of another modification of a control unit same as the above. It is a top view of another modification of a control unit same as the above.

1 Agricultural machine 2 Tractor that is a traveling vehicle
11 Airframe
12 Working means
41 Drive means
49 Operation unit as remote control means
50 Control unit as control means
51 Switching operation means
52 Position setting operation means
61 detection means
65 Fine adjustment operation

Claims (3)

A machine frame connected to the traveling vehicle;
Working means provided in this machine frame so that the left and right positions can be changed, and selectively switched between a working state and a storage state, and an offset work in the working state;
Switching operation means for switching the state of the working means from the storage state to the working state ;
Position setting operation means for setting a set work position corresponding to the traveling vehicle from a plurality of work positions ;
Detecting means for detecting whether or not the work means is located at a preset work position among a plurality of work positions by the position setting operation means;
When the switching operation means is operated in the storage state of the working means, the left and right positions of the working means with respect to the machine frame are changed, and the working means sets the position from the storage state based on the detection of the detection means. A farm working machine characterized in that it is in a work state located at a preset work position among a plurality of work positions by the operation means. The agricultural work machine according to claim 1, further comprising fine adjustment operation means for finely adjusting a left-right position of the work means with respect to the machine frame. Driving means for outputting a driving force to change the left and right positions of the working means relative to the machine frame;
Control means for controlling the drive means;
An operation unit that is disposed in the vicinity of a driver's seat of a traveling vehicle and is a remote operation unit that transmits an operation signal to the control unit;
The farm work machine according to claim 2, wherein the operation unit includes a switching operation means, a position setting operation means, and a fine adjustment operation means.

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