JPH0741282Y2 - Farm work machine - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an agricultural work machine, for example, a work machine for performing soil work such as plowing work and scraping work.

[0002]

2. Description of the Related Art Conventionally, as an agricultural working machine for carrying out this type of soil work, for example, a main frame having a mission and extending in the left-right direction is provided, and a chain is provided at both left-right ends of the main frame. A case and a bracket are arranged in series to face each other, a rotary work body is rotatably mounted between the lower ends of the left and right chain cases and brackets, and the rotary work body is interlockingly connected to the mission. There is something.

While the machine frame is being towed and advanced, the rotary work body is rotated by the output from the mission, and the cultivated soil is sequentially cultivated by the rotary work body.

[0004]

In the above-mentioned structure, the rotary working body has a working width substantially corresponding to the length of the main frame extending in the left-right direction of the machine frame. , In recent years, it has not been possible to adequately meet the increasing desire to increase the working width and the improvement in work efficiency, and when the working width of the rotary working body is increased in the left-right direction,
There is a problem that road obstacles occur when the rotary work body is set in a tow vehicle such as a tractor, and traffic is impeded when it is stored in a hangar because it cannot pass through an entrance / exit.

Therefore, a working machine provided with rotary working bodies driven by the output from the mission is rotatably connected to the left and right parts of the machine frame, and both ends of the output shaft of the mission of the machine frame and the work. A structure has been proposed in which a universal joint is interlockingly connected to an inner end portion of a drive shaft that transmits output to a rotary working body of the machine.

However, with this structure, while the working width of the rotary working body is expanded to improve the work efficiency, it is possible to reduce the outward extension of the working machine if necessary, but the machine frame When setting the left and right work machines connected to the left and right parts of the left and right parts in the left and right direction, set a space between the inner ends of the left and right work machines that face each other Occurs, and this space remains as the uncultivated residual tillage in each rotary work body, and the cultivated soil in this residual tillage is required to be further tilled by a post-work, and therefore the rotary tillage is required. There is a problem that it is not preferable for substantially expanding the working width of the working body.

Therefore, the present invention has been made in view of such a point, and when the left and right working machines connected to the left and right portions of the machine frame are set in a laterally extended state, the left and right working machines are set. The residual tillage treatment body is automatically located between the inner ends of the turf and the remaining tillage treatment body can reliably plow the cultivated soil between the inner end portions of the left and right working machines. The working width of the body can be substantially expanded to improve work efficiency, and when not working, the left and right work machines can be rotationally deformed rearward in parallel to minimize the left and right work machines. The width of the left and right sides can be reduced, and the problem of traffic obstacles can be solved.
Moreover, it aims at providing the agricultural working machine which can be easily stored in a hangar.

[0008]

The agricultural working machine of the present invention is provided with a rotatable input shaft having an axial direction in the front-rear direction.
Provided an output shaft having an axially monitor rotatable in the horizontal direction
And a machine frame with a mission, and up and down on the left and right parts of this machine frame
Direction of the tiller shaft that is rotatably connected in the horizontal direction by the connecting pin in the direction and is driven to rotate by the output from the output shaft.
Left and right working machines having a rotary working body radially provided with a large number of tillers, and the tilling shafts of the left and right working machines
The inner end of the drive that rotates the engine and the output shaft of the mission
A clutch for attachment and detachment of the end portions, respectively, and the machine frame
The left and right connecting pins provided between the left and right working machines
While protruding in parallel form, respectively to the rear part of the left and right state respectively overhanging the horizontally to the right and left portions of the front and the working machine is horizontally rotated <br/> Symbol machine frame and the machine frame as the pivot center to displacement in
Working machine turning hand that causes the left and right clutches to be attached and detached
Steps and left and right work machines provided on at least one of the left and right work machines, and left and right work machines when the left and right work machines are horizontally extended to the left and right parts of the machine frame. And a residual tillage treatment body which is located between the inner ends of the machine and which tills the residual tillage between the inner ends.

[0009]

The [action] The present invention of agricultural machines, tillage Harrow During work do the work, if you create dynamic work machine rotating means, the left and right working machine, the rear connecting pins of each of the vertical direction as the pivot center horizontally rotated forward from parts, together with the inner end of the left and right of the working machine is brought into contact with the left and right portions of the machine frame, couriers
Drive shafts of the left and right implements on both ends of the output shaft
By connecting the inner end of the
The operation of the moving means is stopped. Thus, the working machine of the left and right to the left or right portion of the machine frame is connected to and supported in a state of overhanging horizontally shape. Also, the residual tillage treatment unit provided on one working machine is set in a state where the left and right working machines are overhanging, and is automatically arranged between the inner ends of the left and right working machines. Prepare for tilling of cultivated soil located between the inner ends of the left and right rotary work bodies.

Then, for example, when the main shaft is pulled by the tractor and the input shaft is rotated by the output from the power take-off shaft portion of the tractor, this output is transmitted to the left and right rotary working bodies via the output shaft of the mission. Transmitted,
The left and right rotary working bodies are rotationally driven to proceed, and the left and right rotary working bodies proceed while the cultivated soil is sequentially cultivated with a wide working width which is larger than the vehicle width of the tractor. Further, along with the cultivated soil by the left and right rotary working bodies, the cultivated soil located between the inner end portions of the left and right rotary working bodies is sequentially plowed by the residual tillage processing body. Therefore, the left and right rotary work bodies and the residual tillage treatment body can cultivate the cultivated soil reliably over the entire working width of the left and right rotary work bodies.

[0011] Then, at the time of storage in the road during running and hangars, if you create dynamic work machine rotating means, toward the left and right working machine connecting pin of each vertically behind as the pivot center horizontally pivoted Te Rutotomoni, the output shaft of the transmission
Both ends of the turret and the drive units of the left and right work implements are connected.
It is released by the latch. Then, the left and right working machine in a state of increased shrinkage left and right of the piston rod is displaced in the state of projecting respectively into parallel form to the rear part of the machine frame. Therefore, the widths of the left and right work machines are greatly reduced in the left-right direction, and the work machines are transformed into a state suitable for traveling on the road and storing in the storage.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

In the figure, 1 is a machine casing, and this machine casing 1 is
It has a hollow cylindrical main frame 2 extending in the left-right direction, and the base ends of the left and right lower arms 3 projecting forward are inserted and fixed to the left and right ends of the main frame 2, respectively. Lower pins 4 are projectingly provided at the tips of the lower arms 3. In addition, a mission 5 is provided in the middle of the main frame 2.
A mission case body 6 having a built-in is provided, and the base end portions of the top masts 8 are respectively fixed to the left and right mounting pieces 7 protruding from the upper portion of the mission case body 6, and the tip portions of the left and right top masts 8 are fixed. The left and right top masts 8 and the left and right lower arms 3 are connected to each other by a stay 10.

Further, both ends of the main frame 2 are projected to the outside of the base ends of the left and right lower arms 3, and an annular flange 12 is formed at the left and right protruding ends 11. Further, the input shaft 13 of the mission 5 is rotatably projected forward, and the output shaft 14 of the mission 5 is rotatably provided in the main frame 2, and both ends of the output shaft 14 are rotatably provided. Are rotatably projected to the outside of the lower arm 3 by bearings 15 in the both ends of the main frame 2.

Further, projecting shaft portions 16 at both ends of the output shaft 14
One clutch pawl 18 of the clutch 17 is fixed in the axial direction and is slidably attached in the axial direction, and a plurality of clutch recesses are provided at the outer end of the one clutch pawl 18.
19 and a plurality of clutch pawls 20 are formed. Further, a coil spring S for urging the one clutch pawl 18 outward is wound around the protruding shaft portion 16 between the one clutch pawl 18 and the bearing 15, and A stopper for preventing the clutch pawl 18 from coming off at the outer end of the part 16
25 is fastened.

Further, at the left and right ends of the main frame 2, the tip ends of the left and right connecting arms 21 protruding horizontally toward the rear are inserted and fixed, and between the rear end parts of the left and right connecting arms 21. The support frame 22 is fixed, and the connecting pieces 23 are fixed to the upper and lower rear end outer portions of the left and right connecting arms 21, respectively, and the central portions of the clutch 17 are attached to the left, right, upper and lower connecting pieces 23. up-and-down direction coupling pin 24 of it is located in the more backward
It is inserted and removed freely.

Numeral 26 is a working machine disposed on the left and right parts of the machine frame 1. The left and right working machines 26 have a hollow pipe-shaped connecting frame 27, and the inner end of the connecting frame 27. A bracket 28 is fixed to this, and an upper end of a chain case 29 is fixed to the outer end of the connecting frame 27. The left and right connecting frames 27 will be described later.
As a drive unit for rotating the tilling shaft of the rotary work body
All drive shafts 30 are rotatably inserted and supported by bearings (not shown), the inner end of the drive shaft 30 is projected inward of the bracket 28, and the outer end of the drive shaft 30 is The part projects into the upper part of the chain case 29 . Well
And, wherein the protruding shaft portion 31 of the inner end portion of the drive shaft 30 is fixed and the other clutch pawl 32 of the clutch 17, the inner end of the other of the clutch pawl 32, the one clutch pawl A plurality of clutch recesses 33 and clutch pawls 34 that are disengageably engaged with the plurality of clutch recesses 19 and clutch pawls 20 of 18, respectively .

Further, the inner end of the bracket 28 is covered with the one and the other clutch pawls 18 and 32, and the outer edge opening edge of a cylindrical cover body 35 also serving as a stopper is fixed. An elastic packing 36 that is detachably engaged with the flange 12 on the outer circumference of the one clutch pawl 18 is fixed to the inner edge opening edge of 35. Further, a cover body 37 is fixed to the lower end of the bracket 28 and the chain case 29 in the vertical direction, and a bracket 38 fixed to the side plate 37a at the inner end of the cover body 37 and the lower end of the chain case 29. A cultivating shaft 39 is rotatably laterally provided between the cultivating shaft 39 and a portion by a bearing 40, and a large number of cultivating claws 41 are radially projected on an axially circumferential side portion of the cultivating shaft 39. A rotary working body 42 in which the upper portion of the cover body 37 is covered with the plowing claws 41 is constructed. The left and right rotary work bodies 42 are rotatably connected to the drive shaft 30 via an interlocking medium including a chain provided in the chain case 29.

Further, the support body 44 of the residual tillage treating blade 43 as the residual tillage treating body is fixed to the bracket 38 of the one working machine 26 through the upper and lower spacers 38a, 38a, 43 is fixed to the lower end of the support member 44 in a state of being inclined forward and downward. Support 44 for this leftover tillage blade 43
As shown in FIG. 3, it is formed of a narrow plate-like piece that is long in the vertical direction, and its upper and lower parts are fixed along the bracket 38 via the spacers 38a, 38. Further, as shown in FIG. 3, the residual tillage treatment blade 43 is formed in a plate shape with a width long for plowing the cultivated soil in the front-rear direction, and a mountain-shaped blade edge 43a is formed at the tip thereof. There is. Then, this residual tillage treatment blade 43 is, as shown in FIG.
The cutting edge 43a is lowered and fixed to the lower end of 44 in a state of inclining forward and downward.

Further, a first leveling plate 46 is fixed to the rear end portions of the covers 37 of the left and right working machines 26 via a rubber plate 45, and the lower end of the first leveling plate 46 is fixed. A second leveling plate 48 is pivotally attached to the portion by a support shaft 47 so as to be vertically rotatable. Further, a suspension arm 49 is horizontally projected rearward from the left and right rear ends of the left and right cover bodies 37,
At the rear end of each suspension arm 49, a supporting rod 50 rotatably erected and supported by a shaft 50a from the first leveling plate 46 is vertically movably inserted, and each supporting rod 50 is suspended. Coil springs 51 are projected from the holding arms 49 and are wound around the support rods 50 between the upper ends of the support rods 50 and the suspension arms 49, and the coil springs 51 support the respective support rods. 50 is supported so that it can move up and down. Also, the left and right second leveling plates
A lower end portion of a suspension rod 53 is rotatably supported by a shaft 52 at a substantially intermediate portion of the shaft 48, and upper portions of the left and right suspension rods 53 are fixed to a support frame 57 described later. Bracket bracket 54
The guides 55 are vertically movably inserted into the guides 55, and locking pins 56 are projected from the left and right upper ends of the left and right suspension rods 53, respectively.

The supporting frames 57 to which the left and right brackets 54 are fixed are each formed in a prismatic shape. The left and right supporting frames 57 are an inner connecting plate 58 integrated with a bracket 28 protruding rearward from the inner end of the left and right connecting frames 27 and an outer connecting plate protruding rearward from the outer side of the connecting frame 27. It is fixed between 59 and each. Further, connecting pieces 60 in which the connecting pins 24 are rotatably inserted are fixed to the inner upper and lower portions of the left and right inner connecting plates 58 so as to face each other. The left and right work bodies 26 are pivotally attached to the machine frame 1 so as to be horizontally rotatable about the left and right connecting pins 24.

A support shaft 61 is attached to the left and right brackets 54.
One end of the cam plate 62 is rotatably supported in the vertical direction, and the tip end of the piston rod 64 of the cylinder device 63 is rotated by the interlocking rod 65 at the other end of the left and right cam plates 62. The body 66 of the left and right cylinder devices 63 is movably attached to the shaft.
A base end portion of each is rotatably supported by a support shaft 68 on a bracket 67 protruding from the support frame 57. The left and right cam plates 62 have an engagement projection edge 69, an engagement recess 70, and a guide edge 71 on the outer peripheral edge of which the engagement pin 56 is removably engaged.
Are continuously formed. Further, the left and right suspension rods 53 are respectively wound with coil springs 73 whose lower ends are locked to stoppers 72 projecting in the middle of the suspension rods 53. Furthermore, the left and right cover bodies 37
An elastic cover body 74 made of a rubber plate is fixedly hung vertically on the rear end of the inner edge of the residual plowing treatment blade 43 so as to overlap with each other at the rear portion of the residual tillage treatment blade 43 and close the space between the inner end portions of the left and right working machines.

Next, work up and down to the support frame 22 of the machine frame 1
A cylinder device 75 as an industrial machine rotating means is provided, and the upper and lower cylinder devices 75 have a base end portion of a main body 76 rotatably supported by a vertical support shaft 77, respectively.
A bracket 79 protruding from the inner end rear portion of the support frame 57 of the left and right working machines 26 is rotatable on the vertical axis 80 at the tip end portions of the piston rods 78 of the upper and lower cylinder devices 75 protruding in opposite directions. Is pivoted on.

Next, the operation of the above embodiment will be described.

The left and right lower pins 4 are connected to the left and right lower links of the tractor, the connecting portion 9 of the top mast 8 is connected to the top link of the tractor, and the input shaft 13 is connected to the power take-off shaft of the tractor at both ends. Connected via a power transmission shaft provided in the section.

Next, for example, in the case of cultivating soil on the inner side of the ridge, when the upper and lower cylinder devices 75 are operated to extend the respective piston rods 78, the left and right working machines 26 respectively Is horizontally rotated from the rear side toward the front around the connecting pin 24 as a rotation center, and the inner end portions of the respective cylindrical cover bodies 35 are brought into contact with the left and right flanges 12 of the main frame 2 to be positioned, At the same time when the rotation of the left and right work machines 26 is blocked, the left and right clutches 17 have a plurality of clutch recesses 19, 33 and clutches in which the other clutch claw body 32 has one clutch claw body 32. The claws 20 and 34 are connected in a meshed state.

In this case, since the elastic packing 36 is fixed to the inner end portions of the left and right cover bodies 35, the impact on the flange 12 is buffered, and the left and right cover bodies 35 surely cover the clutch 17. Sand and dirt are clutched 17
It is prevented from entering inside. Further, since the one clutch pawl 18 is provided slidably only in the axial direction by the coil spring S with respect to the projecting shaft portion 16 of the output shaft 14, the forward and backward movement of the one clutch pawl 18 is performed. As a result, the one clutch pawl 18 and the other clutch pawl 32 are meshed and connected smoothly and reliably. Therefore, the left and right work machines 26 are connected to the left and right sides of the machine frame 1 in a horizontally extended state, the output shaft 14 and the left and right drive shafts 30 are automatically connected, and The residual tillage treatment blade 43 is automatically arranged between the inner ends of the working machine 26, and the rear portion of the residual tillage treatment blade 43 is closed by the left and right elastic cover bodies 74 that are automatically overlapped.

Then, when the input shaft 13 is rotationally driven by the output from the power take-off shaft portion of the tractor while the main body is pulled by the tractor, the output shaft 14 of the mission 5 is output by the output of the input shaft 13. , Clutch 17, drive shaft
The left and right rotary working bodies 42 are rotationally driven via 30 and the interlocking medium. Then, the left and right rotary working bodies 42
As the rotation progresses, the cultivated soil is successively cultivated with a wide working width that is larger than the vehicle width of the tractor and protrudes outward, and the cultivated soil located between the inner ends of the left and right rotary working bodies 42 is left over tilling blade 43. It is progressed while plowing sequentially.

The soil cultivated by the left and right rotary working bodies 42 is pulled by the rubber plate 45 and the first
The soil leveling plate 46 or the second leveling plate 48 sequentially advances the soil, and the soil cultivated by the residual tillage treatment blade 43 is sequentially advanced by the left and right elastic cover bodies 74 that have been superposed, The elastic cover body 74 prevents the soil from being blown out from between the rear side portions of the left and right cover bodies 37 and advances.

Next, when the vehicle is traveling on the road or stored in the hangar, the upper and lower cylinder devices 75 are actuated to greatly contract the respective piston rods 78, and the left and right work machines are operated.
26 are horizontally rotated rearward around the respective connecting pins 24 as rotation centers, and when the inner ends of the respective cover members 35 are separated from the flange 12, the left and right clutches 17 are moved from one clutch claw member 18 almost at the same time. The other clutch pawl 32 is separated and separated. Then, in a state of increased shrinkage left and right of the piston rod 78 the right and left of the working machine 26 is Ru is displaced state of projecting parallel form to the rear part of the machine frame 1. Therefore, the left and right
The width of the work machine in the left-right direction is greatly reduced, and the work machine is slightly deformed to a state suitable for traveling on a road or storing a hangar. When the left and right work machines 26 are rotationally displaced, even if the left and right elastic cover bodies 74 interfere with each other, each is prevented from being elastically deformed and damaged, and their rotation is hindered. There is no.

Next, at the time of earth-pulling work, when the left and right cylinder devices 63 are operated to expand and contract the piston rods 64, the left and right piston plates 64 cause the left and right cam plates 62 to center on the respective support shafts 61. When the locking pins 56 of the left and right suspension rods 53 are engaged in the engagement recesses 70 of the left and right cam plates 62, the left and right suspension rods 53 are rotated by the left and right cam plates 62.
Is lowered, the second leveling plate 48 is rotated downward about each of the support shafts 47, and is held in a state of protruding downward at a predetermined inclination angle. Then, the second leveling plates 48 of the left and right work machines 26 are locked in the set state, and the soil at the high position is attracted to the low position by this advancing tow and the leveling is made flat.

In addition, when the left and right cylinder devices 63 are operated and the extended piston rods 64 are contracted during the scraping work, the cam plates 62 rotate around the respective support shafts 61 by the left and right piston rods 64. When the locking pins 56 are disengaged from the engaging recesses 70 of the left and right cam plates 62, the respective locking rods 53 are unlocked, and the left and right second leveling plates 48 are set in a free state. To be done. Therefore, the second ground leveling plates 48 of the left and right work machines 26 are supported by the respective brackets 54 so as to be vertically movable via the suspension rods 53 and the coil springs 73.
As the 48 is towed and advanced, the ground surfaces scraped by the left and right second leveling plates 48 are leveled in order.

Further, when suspending the whole work machine 26 including the left and right work machines 26 by the three-point suspension mechanism of the tractor, when the left and right cylinder devices 63 are operated to expand and contract the piston rods 64, the left and right piston rods 64 When the cam plate 62 is rotated about each of the support shafts 61, and the locking pins 56 of the left and right suspension rods 53 are locked on the engaging projections 69 of the left and right cam plates 62, With the left and right cam plates 62, the left and right suspension rods 53
And the second leveling plates 48 on the left and right are the support shafts.
The second leveling plates 48 on the left and right are rotated upward around the center of 47 and are held in a state of being pulled up, so that the entire suspension can be prepared.

Next, in the above-described embodiment, the case where the left and right working machines 26 are horizontally rotated in the front-rear direction and folded with respect to the machine frame 1 has been described. However, the present invention is not limited to this. 26 may be folded in a state of being inclined upward and rearward of the machine casing 1. In this case, the left and right connecting arms 21 are provided so as to project rearward in a state of inclining rearward and upward, and the connecting pieces 23 are opposed to each other in a state of inclining above and below the rear end outer ends of the left and right connecting arms 21. It is fixed and the connecting pin 24 is attached to the upper and lower connecting pieces 23 on the left and right.
At, the connecting pieces 60 of the left and right work machines 26 are pivotally mounted.
As a result, the left and right work machines 26 can be folded parallel to each other with the connecting pin 24 as the center of rotation and inclined rearward and upward with respect to the machine frame 1.

[0035]

According to the present invention, at least one of the left and right working machines connected to the left and right parts of the machine frame is left with a residual plowing process between the inner ends of the left and right working machines. is provided with the tillage processed, the inter-inner end portions of the left and right working machine by setting the state of out horizontally like Zhang to the left and right portions of the machine frame left and right working machine at work machine rotating means when working Remaining tiller automatically
Placed and positioned, this residual tillage treatment body can reliably plow the cultivated soil between the inner ends of the left and right work machines, and requires post-work between the inner ends of the left and right work machines. It is possible to reliably prevent the occurrence of the residual plowing part
It Therefore, the left and right rotary working bodies and the residual tillage treatment body can substantially continuously expand the working width against soil in one stroke, and the work efficiency can be surely improved. Also, the rear portion of the working machine machine frame of the left and right at the working machine rotating means during non-working flat
By displacing in a row, the left and right work machines can be reduced to the maximum size and the width of the left and right can be made smaller, which can surely solve the problem of traffic obstacles, and can also be stored in the hangar. It can be done easily.

[Brief description of drawings]

FIG. 1 is a plan view of an agricultural work machine showing an embodiment of the present invention.

FIG. 2 is a plan view showing the working machine on one side of the same.

FIG. 3 is a diagram showing a state in which a working machine on one side is folded.
It is a perspective view in the arrow b direction.

FIG. 4 is a side view of the same agricultural working machine.

FIG. 5 is a side view of a part of the line portion of FIGS.

FIG. 6 is a cross-sectional view taken along line 1c-c of FIG.

FIG. 7 is an operation explanatory view of the ground leveling plate.

FIG. 8 is an operation explanatory view of the ground leveling plate.

[Explanation of symbols]

1 Machine frame 5 Mission 13 Input shaft 14 Output shaft 17 Clutch 24 Connecting pin 26 Working machine 30 Drive shaft as drive unit 39 Tillage shaft 41 Tilling pawl 42 Rotary work body 43 Remaining tillage treatment body 75 Cylinder as working machine rotating means apparatus

Claims (1)

[Scope of utility model registration request] 1. An input having a rotatable front-rear direction and an axial direction.
A force shaft is provided and the shaft is rotatable in the left-right direction.
And a machine frame having a mission provided with an output shaft, and a cultivating shaft that is horizontally rotatably connected to the left and right parts of the frame by connecting pins in the vertical direction and is driven to rotate by the output from the output shaft. A large number of plowing nails are installed radially in the axial direction.
Of the left and right work machines that have a rotary rotary work body, and the drive unit that rotates the tiller shafts of the left and right work machines.
Attach the end to both ends of the mission output shaft.
The clutch to be disengaged and the left and right parts provided between the machine frame and the left and right work machines.
Rotate the left and right work machines horizontally with the connecting pin of
It is moved and horizontally extended to the left and right parts of the machine frame and projected in parallel to the rear part of the machine frame .
Work to displace the left and right clutches.
The work machine rotating means and the left and right work machines provided on at least one of the left and right work machines, and the left and right work machines are set to horizontally extend to the left and right parts of the machine frame. A residual tillage treatment body located between the inner ends of the machine for plowing the residual tillage between the inner ends,
An agricultural working machine characterized by comprising: