JPH0472483B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tilling and crushing device, which uses a rotary soil crusher to crush the soil left after inversion tilling with a plow, and backfills the grooves formed in the path of the plow during the soil crushing to remove soil fragments. This is to prevent shifting.

Disk plows and other types of plows can turn over the soil when cultivating a field, but compared to rotary tilling, they simply turn over the gravel, so the finished product, especially the crushability, is poor, and it is difficult to leave the soil as it is. It is not possible to plant seedlings, etc. In addition, since plowing is done by layering gravel on one side, the soil is uneven at the plowing site, especially when plowing along the edge of a bank.
There were times when soil was thrown onto the banks. Moreover, there is always a trench on the opposite side to the side where the soil is thrown, so if you are planning to plant immediately without draining water, you cannot easily backfill the trench even if you crush the soil with a rotary wheel. It was difficult to finish it evenly.

The present invention has been provided for the purpose of solving such conventional problems, and its feature is that the rear part of the plow 6 having the rotating shaft 9 to which power is transmitted from the tractor 1 A soil crushing rotary 7 is provided for crushing the surface of the soil left by the plow 6, and this soil crushing rotary 7 moves the claw shaft 55 in the direction of movement so as to blow the soil in the opposite direction to the direction in which the plow 6 throws the gravel. A tilling and crushing device is arranged obliquely to the plow 6, and the rotary machine frame 53 of the soil crushing rotary 7 is detachably connected to the plow machine frame 8 of the plow 6,
The power take-off shaft 32 that protrudes from the plow machine frame 8 and extracts the power transmitted from the tractor 1 and the claw shaft 55 of the rotary machine frame 53 are interlocked and connected via a universal joint shaft 66 in a detachable manner. .

Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment. In FIGS. 1 and 2, 1 is a tractor, which is equipped with rear wheels 2, a PTO shaft 3, a three-point link mechanism 4, a lifting hydraulic system 5, etc. A tilling and crushing device consisting of a disc plow 6 and a crushing rotary 7 is attached to the rear of the tractor 1 via a three-point linkage mechanism 4.

As shown in FIG. 3, the disc plow 6 includes a plow machine frame 8, a rotary shaft 9 mounted on the lower end of the plow machine frame 8, and a rotary shaft 9 provided at equal intervals in the longitudinal direction. A bowl-shaped disk 10 and a reversal guide plate 11 provided corresponding to each disk 10.
It consists of: The plow machine frame 8 is formed into a gate shape by an input case 12 at the center of the upper part, a pair of support cylinders 13 projecting outward from the input case 12 to the left and right, and a pair of side plates 14 hanging downward from the projecting ends of the support cylinders 13. It has a mounting frame 15 extending forward from a pair of support cylinders 13 and input case 12, etc., and via this mounting frame 15,
The plow machine frame 8 and the rotating shaft 9 are detachably connected to the three-point linkage mechanism 4 so as to be inclined in plane by a predetermined angle with respect to the traveling direction of the tractor 1.

As shown in FIG. 4, an input shaft 16 protruding forward is rotatably supported by the input case 12 via a bearing 17, a bearing case 18, etc., and this input shaft 16 supports a universal joint shaft 19. It is interlocked and connected to the PTO shaft 3 of the tractor 1 via. Input shaft 1
6 has a bevel pinion 20, which is engaged with a bevel gear 22 of a transmission shaft 21. The transmission shaft 21 is inserted into one support cylinder 13 and rotatably supported via bearings 23 at both ends, and there is a space between the support cylinder 13 on the side of the transmission shaft 21 and the corresponding side plate 14. , a relay case 24 is interposed. As shown in FIG. 5, the relay case 24 includes a bevel gear 25 fixed to the transmission shaft 21 and a pair of bevel gears 26 and 27 that mesh with the bevel gear 25. The bevel gear 26 is for transmitting power to the rotating shaft 9, and is engaged with the bevel gear 25 from below, is spline-coupled to the upper end of the vertical transmission shaft 27a, and is connected to the relay case by a bearing 28. 24 bearing case 29
It is maintained by The bevel gear 27 is for transmitting power to the soil crushing rotary 7 side, and is engaged with the bevel gear 25 from the rear obliquely downward side. This bevel gear 27
is a PTO supported diagonally backward and downward on the relay case 24 via the bearing 30 and the bearing case 31, etc.
It is spline-coupled to a shaft (power take-off shaft) 32.

The rotating shaft 9 is attached to the mounting flange 3 as shown in FIG.
3 is connected by a square shaft 35, bolts 36, etc., and both ends thereof are removably flanged to end shafts 37, 38. The disk 10 is attached to the mounting flange 33. The end shaft 37 has a bearing 40 and a bearing case 41 in a lower case 39 provided inside the lower end of one side plate 14.
A bevel gear 42 is fixed to the outer end of the end shaft 37. A bevel pinion 43 is engaged with the bevel gear 42 within the lower case 39, and the bevel pinion 43 is provided at the lower end of the transmission shaft 27. Note that the transmission shaft 27 is connected to a cover tube 44 provided across the relay case 24 and the lower case 39.
covered by. The end shaft 38 is connected to the other side plate 1
A bearing 46 is mounted on a bearing case 45 provided at the lower end of 4.
It is rotatably supported via. The reversal guide plate 11 also serves as a scraper, and is fixed to the lower end of a column 47 so that one end is in slidable contact with the discharging portion on the rear inner surface of the disk 10, and the column 47 is connected between the left and right side plates 14. Support member 4 suspended horizontally on
8 with a set bolt 49 so as to be vertically adjustable.

A pair of left and right knives 51 having a chisel 50 at the lower end of the mounting frame 15 are provided in a holding cylinder 52 so as to be vertically adjustable.

The rotary soil crusher 7 is for crushing the surface of the soil left after the reverse tillage has been performed by the disc plow 6, and as shown in FIG. 3, the rotary machine frame 5
3, a claw shaft 55 having a tilling claw 54, and a rake 5.
6. The rotary machine frame 53 includes a pair of left and right side plates 57, a rotary cover 58 provided between the side plates 57 to cover the upper side of the rotation trajectory of the tilling claws 55, and a rotary cover 58 provided between the side plates 57 on the upper side of the front end of the rotary cover 58. It consists of a support tube 59 installed on the. The support tube 59 is provided with a pair of left and right arms 60 that protrude forward and upward.
The tip of the plow frame 9 is removably pivoted to a bracket 61 of the plow machine frame 8 via a horizontal support shaft. Further, a piston rod of a hydraulic cylinder 62 is connected to the support cylinder 59, and the main body side of the hydraulic cylinder 62 is pivotably attached to a bracket 63 on the input case 12 in a detachable manner. Therefore, the rotary machine frame 53 is connected to the plow machine frame 8 via the arm 60 and the hydraulic cylinder 62, and can be raised and lowered by the hydraulic cylinder 62. The claw shaft 55 is attached to the left and right side plates 57 so that it is approximately parallel to the rotation axis 9 of the disc plow 6.
A lower case 64 is rotatably supported between the lower ends of the lower case 64 and is attached to the outside of one side plate 57.
It is designed to be rotationally driven in the up-cut direction via a bevel gear mechanism (not shown) inside. The lower case 64 has an input shaft 65, which is connected to the PTO shaft 32 via a universal joint shaft 66.
It is detachably connected to. The rake 56 is fixed at its upper end to a support member 66 so as to protrude downward from the end of the rotary cover 58, and the support member 66 is rotatably supported by the left and right side plates 57 at both ends. A pair of elastic mechanisms 67 bias the rake 56 in the direction of contacting the ground. Reference numeral 68 denotes a grounding ring which is vertically adjustable and is attached to the rear side of one end of the plow machine frame 8 so as to regulate the plowing depth and to receive the reaction force during plowing.

Next, the effect will be explained. During tilling work, the power from the PTO shaft 3 of the tractor 1 drives the rotary shaft 9 of the disc plow 6 and the soil crushing rotary 7.
The tractor 1 tows the vehicle while rotating the claw shaft 55 of the vehicle. That is, the PTO shaft 3 of the tractor 1
The power from the input case 1 is transmitted to the input shaft 16 of the input case 12 via the universal joint shaft 19.
After being decelerated through the bevel pinion 20 in the transmission shaft 21 and the bevel gear 2, the transmission shaft 21 is transferred to the relay case 2.
The signal is transmitted to the bevel gear 25 of No. 4. And this bevel gear 25 has two bevel gears 2.
6 and 27 engage, this bevel gear 2
Divided into two systems at 6 and 27, one is the transmission shaft 27a
is transmitted to the lower case 39 side on the disc plow 6 side, and after being decelerated by the bevel pinion 43 and bevel gear 42, it is transmitted to the rotating shaft 9 via the end shaft 37, and this rotating shaft 9 It is rotated around the axis in the direction of arrow a. On the other hand, the bevel gear 27 passes through the PTO shaft 32, the universal joint shaft 66, and then the input shaft 6 of the lower case 64 on the crushing rotary 7 side.
5, it is transmitted to the pawl shaft 55 via the internal bevel gear mechanism, and the pawl shaft 55 is
Rotate in the direction of the arrow.

When the rotary shaft 9 of the disc plow 6 rotates in the direction of the arrow a, the rotary shaft 9 rotates in the traveling direction of the tractor 1 (c
As each disk 10 rotates, it cuts into the soil, and at the same time, it cuts up the soil and guides it according to the curvature of the inner surface and turns it over. Throw it diagonally backwards. In this case, since the reversal guiding plate 11 is in sliding contact with the inner surface of each disc 10, the soil adhering to the disc 10 is removed, and the gravel that has been cut up by the disc 10 is removed from the reversing guiding plate 11.
Therefore, the reversal of the gravel is very good and defective reversal can be prevented.

As shown by the imaginary lines in FIG. 7, the inverted plowing left by the disc plow 6 is such that the gravel 69 that has been cut and inverted by each disc 10 is sequentially overlapped on one side, and the edge is on the other side. A groove 70 is left corresponding to the passage trace of the disk 10.

Therefore, following this inversion tillage, the soil is continuously crushed and backfilled by the soil crushing rotary 7. That is, the crushing rotary 7 is installed behind the disc plow 10.
are substantially parallel to each other, and since the claw shaft 55 rotates in the direction indicated by the arrow b, the tilling claws 54 sequentially crush the surface of the tillage mark. At this time, the soil crushing rotary 7 moves forward in the direction indicated by the arrow c while blowing part of the soil diagonally forward in the direction opposite to the gravel throwing direction of the disc plow 6 with the tilling claws 54, so that the groove 70 formed at the end can be backfilled with this soil.
Therefore, as shown in FIG. 7, the soil crushed by the soil crushing rotary 7 leaves inverted gravel at the bottom, and the surface portion 71 becomes a layer of crushed fine soil, and the grooves 70 are made of fine soil. The area is now backfilled. In addition, the soil etc. sent from the front to the top and backward by the tilling claws 54 is separated by a rake 56 at the rear.
The grass, etc. falls in front of the rake 56, and then the fine soil that has passed through the rake 56 falls, so that most of the grass, etc. can be buried, and the surface finish can be very good.

In addition, prior to inversion tillage using the disc plow 6, the knife 51 and chisel 5 provided on the mounting frame 15 are
Since the tiller in the field is crushed at zero, it is possible to prevent the tractor 1 from trampling the field, especially the tiller.

The soil crushing rotary 7 can be adjusted up and down with respect to the disc plow 6 by expanding and contracting the hydraulic cylinder 62, thereby making it possible to easily adjust the plowing depth. Further, when the rotary rotary 7 is removed and only the disc plow 6 is used, the arm 60 and the hydraulic cylinder 62 need only be disconnected from the plow machine frame 8, and can be easily removed by attaching or detaching a pin. Of course, it goes without saying that the universal joint shaft 66 must also be removed.

In the embodiment, a plurality of disks 1 are used as a plow.
Although the disc plow 6 in which the rotary shaft 9 is provided is illustrated, the present invention is not limited to this, and the present invention can be similarly implemented in other plows such as a clay plate plow.

According to the present invention, a crushing plow is provided behind the plow to crush the surface portion of this inverted tillage mark, so that the surface portion can be crushed at the same time as and in succession to the inverted tillage by the plow. In addition, the plow shaft is arranged diagonally to the direction of movement so that the soil is thrown in the opposite direction to the direction in which the plow throws gravel. It is possible to prevent unevenness and achieve a level finish, which is very convenient when planting crops after plowing.

In addition, the rotary rotary machine frame is removably connected to the plow machine frame, and the power transmission system is also detachable, so it can be easily separated from the plow, and the rotary crusher can be repaired, replaced, etc. This is easy to do, and in addition, the plow constituting the tilling and crushing device can be separated from the soil crushing rotary and used alone, increasing the versatility of the device.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is an overall side view, Fig. 2 is a plan view of the same, Fig. 3 is a cross-sectional side view of the tilling and crushing device, and Fig. 4 is a transmission system on the disc plow side. FIG. 5 is a cross-sectional plan view taken along the line V-V in FIG. 4, FIG. 6 is a broken rear view of the rotating shaft portion, and FIG. 7 is an explanatory view of the operation. 1...tractor, 6...disk plow, 7...
...Soil crushing rotary, 8...Plow machine frame, 9...Rotary shaft, 10...Disc, 53...Rotary machine frame,
54... Cultivating claw, 55... Claw shaft, 56... Rake.

Claims (1)

[Claims] 1. A soil crushing rotary 7 is provided behind the plow 6 having a rotating shaft 9 to which power is transmitted from the tractor 1, for crushing the surface portion of the soil left by the plowing by the plow 6, and this soil crushing rotary 7 A tilling and crushing device in which a claw shaft 55 is arranged diagonally with respect to the direction of movement so as to blow soil in a direction opposite to the direction in which the gravel is thrown by the plow 6, and the soil crushing rotary is connected to the plow machine frame 8 of the plow 6. 7 rotary machine frames 53 are removably connected,
The power take-off shaft 32 protruding from the plow machine frame 8 and extracting the power transmitted from the tractor 1 is interlocked with the claw shaft 55 of the rotary machine frame 53 via a universal joint shaft 66 in a detachable manner. Tillage and crushing equipment.