JP4516040B2 - Management machine - Google Patents

Description

  The present invention relates to a management machine.

Conventionally, as one form of management machine, by attaching a rotary equipped with a plurality of tilling claws to the nail shaft at both ends of the tilling shaft extended to the left and right of the tillage working unit, and replacing the left and right rotary, Can be switched between an inner tillage setting for cultivating a flat shape and an outer tillage setting for forming a groove in the center and a mountain-like embankment on both sides (for example, Patent Documents) 1).
JP 2003-189703 A

  However, in the above-mentioned conventional management machine, the left and right rotary can be exchanged so that the end of the claw shaft is in an open state. It was easy to get into the shaft and clog the shaft. And when exchanging the left and right rotary to switch between the inner and outer tillage settings, it was necessary to remove the soil that plugged the inside of the claw shaft, but this removal work was difficult. There was a problem that the exchange work of the rotary was complicated.

Therefore, in the management machine according to the present invention, a rotary-type tilling work part is provided behind the traveling part, and on the left and right sides of the tilling shaft of the tilling work part, on the outer periphery of the hollow claw shaft extrapolated to the tilling shaft. In a management machine in which a rotary formed by attaching a plurality of tilling claws is attached in a detachable state, the claw shaft of the rotary is the same as the first cylindrical member composed of an outer shaft and an inner shaft, and the outer shaft The second cylindrical member having the same length and the same diameter is welded to the outer shaft with the inner shaft protruding from the end of the outer shaft, and the end of the second cylindrical member is used as the inner shaft. The first cylindrical member and the second cylindrical member are fixed to each other by inserting and fixing the pin, and the first cylindrical member and the peripheral surface of the second cylindrical member are fixed to each other. A shaft hole is provided at a position where the distance from each end is equal, and a rotary is attached to the tillage shaft. One end of a pipe-shaped insertion portion that is inserted into the claw shaft so that the left and right rotary can be exchanged by fixing the shaft hole and the cultivation shaft hole provided in the cultivation shaft through a pin when each is mounted. A claw shaft which is provided with a head formed by projecting from the circumferential surface of the insertion portion and a plug body provided with a mounting hole on the circumferential surface of the insertion portion is in the open state of the rotary mounted on the tilling shaft The shaft hole provided in the first cylinder member or the shaft hole provided in the second cylinder member and the mounting hole provided in the plug body are overlapped and inserted into the end of It is intended to provide a management machine characterized by inserting a pin and attaching a fixing pin to a pin hole drilled at the end of the pin to attach and fix a plug body in the nail shaft. .

In the present invention, a rotary type tilling work part is provided at the rear of the traveling part, and a plurality of tilling claws are provided on the left and right sides of the tilling shaft of the tilling work part on the outer periphery of a hollow claw shaft extrapolated to the tilling shaft. In the management machine to which the mounted rotary is attached in a detachable state, the claw shaft of the rotary has a first cylindrical member composed of an outer shaft and an inner shaft, and the same length and the same diameter as the outer shaft. The second cylindrical member is configured so that the inner shaft protrudes from the end of the outer shaft and is welded to the outer shaft, and the end of the second cylindrical member is fitted to the inner shaft. The first cylindrical member and the second cylindrical member are fixed to each other by inserting and fixing the first cylindrical member and the peripheral surface of the first cylindrical member and the second cylindrical member from the respective end portions. When the shaft holes are provided at the same distance and the rotary is attached to the tillage shaft The right and left rotary can be exchanged by fixing pins through the shaft hole and the tilling shaft hole provided in the tilling shaft, and at the end of the pipe-shaped insertion portion to be inserted into the claw shaft, In addition to providing a head formed by projecting against it, a plug body provided with a mounting hole on the peripheral surface of the insertion portion is inserted and fitted into the end of the claw shaft which is the open state of the rotary mounted on the tilling shaft. The shaft hole provided in the first cylinder member or the shaft hole provided in the second cylinder member and the mounting hole provided in the plug body are overlapped to insert a pin into the pin end, By attaching a fixing pin to the pin hole drilled in, it is characterized by attaching and fixing the plug in the nail shaft, so changing the direction of the tilling nail by exchanging the left and right rotary, The soil tillage can be adjusted arbitrarily and the left and right rotary can be exchanged. By attaching the plug body to the end of the hollow claw shaft that is in an open state by detaching it, it is difficult for soil to enter the tilling shaft and to prevent clogging during the tilling work. Thus, it is possible to easily replace the rotary without the complicated work of removing the soil plugged in the claw shaft.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  1 and FIG. 2 show a management machine according to the present invention, and the management machine A has a mission formed by bending it in a generally letter-like shape when viewed from the side as shown in FIG. 1 and FIG. The motor unit 3 is disposed at the front position of the case 2, the traveling unit 4 is disposed at the front lower portion of the mission case 2, and the tillage working unit 5 is disposed at the rear lower portion of the mission case 2. The operation unit 6 is disposed at a position above the rear of the management machine A.

Below, the structure of each part of the management machine A will be described.
[Mission case]
As shown in FIGS. 1 and 2, the mission case 2 has a bent portion that is bent in a generally square shape when viewed from the side, between the traveling unit 4 disposed below the management machine A and the tilling work unit 5. The transmission case 2 includes a traveling unit side case structure 7 that extends from the bent portion 10 to a front, rear, and rear inclined shape, and a front portion, a front, rear, and lower inclined shape that extends from the bent portion 10. It is comprised from the tilling operation | work part side case structure 8 extended to (3).

In addition, an input shaft 11 extended in the left-right width direction is rotatably attached to the upper front side of the bent portion 10 of the mission case 2 in a state of projecting toward the left side of the mission case 2. By rotating the input shaft 11 with the power from the prime mover, the power is transmitted to the traveling unit 4 and the tilling work unit 5 through a speed change mechanism provided in the transmission case 2.
[Motor part]
The prime mover section 3 is configured by attaching a prime mover mounting table 12 to the lower front side of the mission case 2, placing a prime mover 13 on the top of the prime mover placement base 12, and attaching a fuel tank 14 on the top of the prime mover 13. . In the figure, 15 is a bumper that also serves as a front weight.
[Traveling section]
The traveling unit 4 is attached to the vicinity of the lower end of the traveling unit side case component 7 of the transmission case 2 so that the axle 16 extended in the left-right width direction can be rotated, and wheels 17 are attached to the left and right end portions of the axle 16. Is attached and formed.
[Tilling Department]
Tilling unit 5, the tilling shaft 18 which has distracted toward the left-right width direction rear lower portion of the transmission case 2, the rotary 30 which is formed by mounting a plurality of cultivating claws 19 in the peripheral surface of the gripper shaft 29, removable It is provided freely.

In addition, a rotary frame 22 is arranged in the middle of the plowing work unit side case structure 8 of the mission case 2 so as to project upward from the plowing work unit 5 and to the rear of the machine body. A tilling cover 21 is attached to the rotary frame 22 so as to cover the upper part of the 19 rotation trajectories 20, and a tilling depth adjusting bar 23 is attached to the rear end of the tilling cover 21 so as to be movable up and down. In the figure, reference numeral 24 denotes a support bracket for supporting the tilling depth adjusting bar 23.
[Operation section]
The operation unit 6 has a substantially gate-shaped handle 25 attached to the middle part of the transmission case 2 in a plan view, with a front, lower, and rear inclined shape, and a deadman clutch lever 26 disposed on the upper end of the handle 25. A shift lever 27 is arranged in front of the handle 25 in a slanting shape with front, rear and rear heights.

The shift lever 27 has a base end portion desired on the right side of the transmission case 2 and, similarly, via a shift link mechanism provided on the right side of the transmission case 2, the transmission mechanism in the transmission case 2 can be operated and shifted. Yes.
[Summary of the present invention]
In the configuration as described above, the gist of the present invention resides in a clogging prevention structure in which the plug 31 is fitted to the end of the claw shaft 29, and will be described below with reference to FIGS.

That is, as shown in FIG. 3, the management machine A has a plurality of tilling claws 19, 19, 19 on the peripheral surface of the claw shaft 29 at the left and right ends of the tilling shaft 18 extended in the left-right direction in the tilling work unit 5. rotary 30a formed by attaching ... a, provided with a 30b detachably, to the outer end portion side of the gripper shaft 29, and a soil plug-preventing structure composed by attaching a pipe-like stopper 31 is detachably .

Hereinafter, the [cultivation shaft 18], [rotary 30] and [plug body 31] will be described in detail.
(Tilling shaft 18)
As shown in FIG. 3, the tilling shaft 18 is provided extending in the left-right direction from the tilling work unit side case structural body 8, and includes a sprocket 32 that transmits rotational power and a transmission chain 33 wound around the The power from the unit 3 is received via the mission case 2 or the like and is driven to rotate. In the figure, reference numeral 34 denotes a chain case in which a transmission mechanism 35 including a sprocket 32, a transmission chain 33, and the like is installed. Further, at the left and right ends of the tilling shaft 18, a tilling shaft hole 36 for mounting a rotary 30 described later is formed.
[Rotary 30]
As shown in FIG. 3, the rotary 30a, 30b is provided at each end of the tilling shaft 18, and a plurality of claw holders 37, 37, 37,. A tilling claw 19 that is attached and formed by bending its tip is attached to the claw holder 37 by a bolt 51.

  In the following, constituent elements common to the rotary units 30a and 30b will be denoted by the same reference numerals and will be described collectively by indicating the rotary unit 30.

  In the rotary 30, the claw shaft 29 is composed of two cylindrical members 38 and 39. The first cylindrical member 38 is composed of an outer shaft 40 and an inner shaft 41. The outer shaft 40 is provided with opposed weld holes 42, 42 on the peripheral surface in the vicinity of the end portion 40a, and on the inner side thereof, the outer shaft The inner shaft 41 having a smaller diameter than 40 is fitted in a state of protruding from the end portion 40a and welded in the weld holes 42, 42 to be integrated with the inner shaft 41. At the edge of the other end 40b of the first cylindrical member 38, a cover body 43 is provided for projecting from the peripheral surface to be coupled to the side surface of the tilling work section side case structure 8. In addition, two opposing coupling holes 45 are provided on the peripheral surface of the protruding portion of the inner shaft 41 that protrudes from the outer shaft 40.

  The second cylindrical member 39 is formed in a cylindrical shape having substantially the same length and the same diameter as the outer shaft 40 described above, and two opposing coupling holes 46, 46 are provided on the peripheral surface near the end 39a. Similarly to the first cylindrical member 38, a cover body 47 is projected from the edge of the other end 39b.

  Further, shaft holes 48 and 49 for coupling with the tillage shaft 18 and a plug body 31 to be described later are formed through the circumferential surfaces of the first cylindrical member 38 and the second cylindrical member 39 at the substantially central portion thereof. The distance from the end 40b of the first tubular member 38 to the shaft hole 48 and the distance from the end 39b of the second tubular member 39 to the shaft hole 49 are equal distances t.

  The cover bodies 43 and 47 are respectively positioned outward, and the protruding portion of the inner shaft 41 in the first cylindrical member 38 and the end portion 39a of the second cylindrical member 39 are fitted, and the coupling holes 45 and 46 Are positioned on a straight line, and the pin 50 is inserted and fixed thereto, thereby fixing the cylindrical members 38 and 39 to form the integral claw shaft 29.

  A plurality of claw holders 37 are welded to the first and second cylindrical members 38, 39, respectively, and in this embodiment, three claw holders 37, 37, 37 are provided, respectively. A tilling claw 19 is attached to each of the claw holders 37 and fixed by bolts 51, 51, 51,.

The tilling claws 19 are formed with different bending shapes, and the corresponding tilling claws 19A to 19F and 19a to 19f are mounted on the rotary 30a and the rotary 30b, respectively.
(Plug body 31)
As shown in FIGS. 3 to 5, the plug 31 includes a pipe-shaped insertion portion 52 and a head 53 formed at one end of the insertion portion 52 so as to protrude from the circumferential surface. Two opposing mounting holes 54, 54 are formed on the peripheral surface in the vicinity of the front end portion. Further, in the insertion portion 52, the diameter in the vicinity of the distal end is slightly smaller than the diameter in the vicinity of the head 53, so that the insertion portion 52 can be easily inserted into the claw shaft 29.

  Hereinafter, a specific usage pattern of the plug 31 will be described with reference to FIGS.

  FIG. 3 is an explanatory view showing the rotary 30 with the inner tillage setting for cultivating the cultivated soil surface flatly. When performing the inner tillage, as shown in FIG. The tilling shaft hole 36 and the shaft hole 48 of the first cylindrical member 38 in the claw shaft 29 are fixed with pins 55, and the rotary 30a and 30b are respectively attached to both ends of the tilling shaft 18. At this time, the tip of the tilling claw 19 faces the direction and inward of the tilling work unit side case structure 8, and the tilling claws 19A and 19a are positioned on the outermost side.

  Then, the plug 31 is inserted and fitted from the distal end side to the end 39b of the claw shaft 29 in an open state, and fixed with a pin 57 and attached. Specifically, as shown in FIG. 5, after the plug body 31 is inserted into the claw shaft 29, the shaft hole 49 of the claw shaft 29 and the mounting hole 54 of the plug body 31 are superposed to form a pin 57. The plug 31 is mounted and fixed in the claw shaft 29 by inserting the fixing pin 59 into the pin hole 58 formed at the end of the pin 57. Since the plug body 31 is attached in such a simple configuration, it can be easily attached to and detached from the claw shaft 29.

  FIG. 4 is an explanatory view showing the rotary 30 having an outer banking setting in which grooves are formed in the center and mountain-shaped embankments are formed on both sides thereof, and the rotary 30 is an inner banking tiller shown in FIG. When switching from the set state to the overlaid tillage setting shown in FIG. 4, the rotary 30 is removed from the tilling shaft 18, and the plug 31 attached to the end 39b of the claw shaft 29 is removed, Replace the rotary 30a, 30b.

  That is, the end 39b side of the claw shaft 29 of the rotary 30a is attached to the end a of the tilling work unit side case structure 8, and the end 39b side of the claw shaft of the rotary 30b is attached to the tilling work unit side case structure 8. Attach to end b. Then, the plug 31 is attached to the end 40 b of the claw shaft 29. At this time, as shown in FIG. 4, the tip of the tilling claw 19 faces outward, and the tilling claws 19A and 19a are located in the innermost portion.

  As described above, by attaching the plug 31 to the end of the claw shaft 29, it is possible to prevent the soil from entering the claw shaft 29. Since the soil can be taken out, the removal work is not complicated. Further, as described above, since the plug 31 is attached to the claw shaft 29 with a simple configuration, it is easy to attach and detach, and the exchange work of the rotary 30 can be easily performed.

  Further, the shape of the plug body is not limited to the above, and as shown in FIG. 6, a plug body 63 in which a plate 61 is welded to a pipe 60 and a head 62 is closed may be used. With the plug body 63 having such a shape, it is possible to reliably prevent the soil from entering the claw shaft 29.

It is a side view of the management machine in this embodiment. It is a top view of the management machine in this embodiment. It is explanatory drawing which shows the internal tillage setting of the rotary in a cultivation working part. It is explanatory drawing which shows the external pile cultivation setting of the rotary in a cultivation working part. It is explanatory drawing which shows the attachment form of a plug. It is explanatory drawing which shows another form of a stopper.

Explanation of symbols

A management machine 2 mission case 3 prime mover part 4 traveling part 5 tillage work part 8 tillage part side case structure
13 prime mover
18 Tillage shaft
19 Claw
29 Claw shaft
30 Rotary
31 Plug
37 Claw holder
38 First tube member
39 Second cylinder member
57 pin

Claims (1)

Behind the travel unit (4) with comprises the tilling of the rotary (5), the left and right sides of the tilling unit tilling shaft (5) (18), a hollow extrapolated to the tilling shaft (18) In the management machine in which the rotary (30a, 30b) formed by mounting a plurality of tilling claws (19) on the outer periphery of the claw shaft (29) is attached in a detachable state,
The claw shaft (29) of the rotary (30a, 30b) has the same length and the same length as the first cylindrical member (38) composed of the outer shaft (40) and the inner shaft (41), and the outer shaft (40). And a second cylindrical member (39) having a diameter,
The inner shaft (41) is welded to the outer shaft (40) in a state where the inner shaft (41) protrudes from the end portion (40a) of the outer shaft (40), and the end portion (39a) of the second cylindrical member (39) is welded to the inner shaft ( 41) and the pin (50) is inserted and fixed to form an integral claw shaft (29) in which the first cylindrical member (38) and the second cylindrical member (39) are fixed.
Shaft holes (48, 49) are provided on the circumferential surfaces of the first cylindrical member (38) and the second cylindrical member (39) at positions where the distances from the end portions (40b, 39b) are equal. ,
When mounting the rotary (30a, 30b) on the tillage shaft (18), the pin (55) is passed through the shaft hole (48, 49) and the tillage shaft hole (36) provided in the tillage shaft (18). As fixed, the left and right rotary (30a, 30b) can be replaced,
At one end of the pipe-shaped insertion portion (52) to be inserted into the claw shaft (29), a head portion (53) formed so as to protrude from the peripheral surface of the insertion portion (52) is provided, and the insertion portion (52 Insert the plug (31) with a mounting hole (54) in the peripheral surface of the nail shaft (29) in the open state of the rotary (30a, 30b) mounted on the tilling shaft (18). Mated
A shaft hole (48) provided in the first cylinder member (38) or a shaft hole (49) provided in the second cylinder member (39), and a mounting hole (54) provided in the plug body (31). ) And the pin (57) is inserted into this, and the fixing pin (59) is attached to the pin hole (58) drilled at the end of the pin (57). Management machine characterized by mounting and fixing the plug (31) .

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