JPH052969Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a tilling and ridge-raising work machine that simultaneously performs tilling and ridge-raising.

(Conventional technology) Plowing work and furrow work are performed continuously at the same time.
A multi-purpose work machine in which the formed ridges are coated with a membrane is already well known from Japanese Utility Model Publication No. 58-33868 and other publications.

The tillage furrow work machine used for this kind of work is
A front forming plate and a ridge forming device are provided at the rear of the rotary tilling section, but the left and right ends of the rotary tilling section are mostly open, with only simple side covers.

(Problems to be solved by the invention) Conventionally, as shown in FIG. 6, after plowing in the outgoing process, ridges 1 are formed, a membrane body 2 is covered, and soil is covered 3.
When similar work was carried out adjacent to the right side during the return trip, there was no means to prevent the tilled soil from scattering to the side of the rotary tilling section, so the covered membrane 2
There was a drawback that the scattered soil 4 piled up on the ridges.

This becomes even more noticeable if the tilling width of the rotary plowing section is larger than the width of the front forming plate, as the front forming plate cannot sufficiently process the tilled soil. Furthermore, even if the tillage depth is adjusted before work, there will be changes in even one field due to the condition of crushed soil, moisture content, soil quality, etc., and the amount of tilled soil scattering to the sides will change, especially if you want to tighten the ridges firmly. In some cases, to increase the plowing depth slightly,
The amount of scattering becomes larger than necessary.

In view of these conventional problems, the present invention aims to prevent the tilled soil from scattering laterally from the rotary tiller.

(Means for Solving the Problem) As a means for achieving the above object, the present invention provides a front molded plate that is installed at the rear of the center drive type rotary tiller 8 of the rotary device 5 and covers the rotary tiller 8 from behind. 10 and this front molded plate 1
In a tilling furrow work machine equipped with side plates 43 that protrude forward from both left and right ends of the rotary tiller 8 and a ridge former 14 that shapes the tilled soil collected by the front forming plate 10 into a ridge shape, An earth protection cover 44 covering substantially the entire surface of both ends from the side is provided so as to be adjustable in position in the left-right direction in accordance with the side plates 43, and the earth protection cover 44 is provided vertically adjustable. The cover 44 has a lower edge close to the outer peripheral edge of the tilling section 8 and has a straight bottom edge in the front-rear direction that penetrates into the soil, and a front edge that rises in an arc shape in front of this bottom edge. It is shaped like a boat.

(Function) The field is tilled by the rotary tiller 8 of the rotary device 5, the tilled soil is received and gathered by the front forming plate 10, and the ridges 15 are formed by the ridge former 14. When tilling with the rotary tiller 8, the tilled soil tends to scatter to the sides, but this is prevented by the soil prevention cover 44.
This prevents tilled soil from spilling to the sides.

The soil protection cover 44 covers the side plates 4 at both ends of the front molded plate 10.
Adjust the position left and right according to step 3, and also adjust the position up and down according to the tilling depth.

The lower edge of the soil protection cover 44 is formed into a boat shape,
Since it penetrates into the soil, it prevents sideways vibration during tillage, guides the soil in a straight line, and shapes the ridges correctly.

(Embodiment) Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment. In Figs. 7, a rotary tiller 8, a main cover 9, etc. The rotary tiller 8 comprises a pawl shaft 11 and a large number of tilling pawls 12. The pawl shaft 11 is supported in the center by a transmission case 13 of the machine frame 7, and through a transmission mechanism inside the transmission case 13, the pawl shaft 11 is provided with a plurality of tilling pawls 12. It is a center drive type that is rotationally driven in the a direction.

A front molded plate 10 is connected to the rear end of the main cover 9 so as to cover the rotary tiller 8 from behind.A pair of left and right side plates 43 projecting forward are fixed to both left and right ends of the front molded plate 10. It is set up.
Three ridge formers 14 are attached to the lower rear side of the front forming plate 10 at equal intervals in the left-right direction so that three ridges 15 can be formed at the same time. Each ridge former 14 is provided with a pair of left and right membrane guide rods 16 corresponding to both sides of the top of the ridge 15 so as to protrude rearward.

Reference numeral 44 denotes soil prevention covers that cover the rotary tilling section 8 from the sides, and there are a pair of left and right soil prevention covers 44.
As shown in Fig. 1, the lower edge is close to the outer periphery of the tilling section 8 and has a straight bottom edge in the front-rear direction that penetrates into the soil, and a front edge that rises in an arc shape in front of this bottom edge. It is formed in a boat shape when viewed from the side, and covers substantially the entire left and right ends of the tilling section 8 from the sides. Further, the soil protection cover 44 has a support 45 projecting upward on the front end side, and the rear end is in contact with the side plate 43 of the front molded plate 10 from the inside. The support column 45 is inserted into a cylinder 46 in the vertical direction, and its position can be adjusted vertically by bolts 47. The cylindrical body 46 is fixed to the outer end of a support rod 48, and the support rod 48 is inserted into cylindrical bodies 50 at both left and right ends of a reinforcing member 49 provided at the front end of the main cover 9 so that its position can be adjusted left and right. , bolt 51
It can be fixed with Therefore, the soil protection cover 44 can be freely adjusted in position to the left and right in accordance with the side plates 43, and vertically in accordance with the plowing depth.

Reference numeral 17 denotes a membrane roll formed by winding a membrane 18 into a roll, and the membrane 18 has a width sufficient to cover the three ridges 15. Reference numeral 19 denotes a membrane feeding unit which rotatably supports the membrane roll 17 and feeds out the membrane 18, and includes a pair of left and right support rollers 20 that support the membrane roll 17 from below; It has a pair of left and right roll supports 21 that fit on both left and right ends of the membrane roll 17. The support rollers 20 are made up of a pair of front and rear rollers, and are rotatably supported via a bracket 23 by a frame 22 that is laterally attached to the upper and lower intermediate portions of the front molded plate 10. The roll support 21 is for supporting the membrane roll 17 so that it does not fall off the support roller 20, and is provided at the rear end of a swing arm 24 attached to the frame 22 side. 25 is the membrane body 1 fed out from the membrane body roll 17
8 is a lifting roller that lifts and guides the central part of the membrane roll 17. It is disposed near the rear of the membrane roll 17 at the left and right center of the membrane feeding section 19, and is supported by a support rod 26 passing under the membrane roll 17. It is rotatably supported.

Reference numeral 27 denotes a soil covering chute for discharging the soil raked up by the tilling claws 12 of the rotary tilling section 8 backward and covering the membrane body 18 on both the left and right sides of the ridge 15. There are four in each direction. Each soil covering chute 27 has a discharge cover 28 that projects rearward, and a receiving plate 29 is provided on the top plate side of each soil covering chute 27 so as to project forward toward the rotary tilling section 8 rather than the front forming plate 10. is provided. Further, a guide plate 30 in the left and right direction is provided below the four soil covering chute 27 so as to straddle each of these soil covering chute 27. Information board 3
0 is supported by a parallel link mechanism 31 on the upper center side of the front molded plate 10 so as to be swingable back and forth, and
By the claw shaft 11 via the rods 32 at both left and right ends,
It is designed to be driven in the front-back direction. One end of the rod 32 is connected to an eccentric pin 34 fixed to a disc 33 at the outer end of the pawl shaft 11, and the other end is connected to a bracket 35 of the guide plate 30 by a pin 36.

37 refers to the membrane body 18 drawn out on the ridge 15.
Four tread wheels 37 are arranged in the left and right direction, and each tread wheel 37 is rotatably supported at the rear end of a support rod 38 bent in a dogleg shape. Each support rod 38 is pivotally supported by a bracket 39 at the upper end of the front molded plate 10 so as to be able to swing up and down, and is biased downward by a spring 40.

Note that a disk 33 is provided in the center of the soil protection cover 44.
A hole 52 having a larger diameter is formed. 53 is a gauge wheel.

In the above configuration, during work, the support rod 4
8 to the left and right to adjust so that the rear end of the soil protection cover 44 comes into contact with the inside of the side plate 43,
The soil protection cover 44 is adjusted up and down according to the plowing depth by sliding the support 45 up and down.

During work, the claw shaft 11 of the rotary tiller 8 of the rotary device 5 is rotated, and the tiller claws 12 of the rotary tiller 8 of the rotary device 5 are rotated.
Cultivate the field by At this time, some of the tilled soil tends to scatter to the sides, but the presence of the soil prevention cover 44 can prevent the tilled soil from spilling to the sides.
The tilled soil is received by the front forming plate 10 and guided to the ridge forming device 14 side, and is formed into three ridges 15 by each ridge forming device 14.
mold at the same time.

During this work, the lower edge of the soil protection cover 44 comes close to the outer peripheral edge of the tilling section 8 and penetrates into the soil with a straight bottom edge in the front-rear direction and a front edge that rises in an arc shape in front of this bottom edge. Since it is formed into a boat shape when viewed from the side, it penetrates into the soil to prevent lateral vibration and provides a linear guide mechanism to form the ridges 15 into correct straight ridges. Then, the membrane roll 17 of the membrane feeding unit 19
The membrane body 18 is fed out across the three ridges 15 from
This membrane body 18 is cut into each ridge 15 by four tread wheels 37.
The membrane body 18 is brought into close contact with each ridge 15 by stepping into the groove 54 on both left and right sides of the membrane body 18 .

After stepping on the membrane body 18, the soil raked up by the rotary tiller 8 is discharged backward through the soil covering chute 27, and the membrane body 18 is covered with soil 55.
hold down.

By providing the soil protection cover 44 in this way, even when working adjacently, the covered membrane 18 can be easily removed.
The spilled tilled soil does not bulge up in streaks on the top, and the finished product can be finished neatly as shown in Fig. 5. Further, even when the tillage depth is increased, the tilled soil can be treated with the front forming plate 10, and the ridges 15 can be easily tightened.

(Effects of the invention) According to the invention, the soil protection cover that covers the rotary tilling section from the sides is provided so that its position can be adjusted left and right in accordance with the side plates at both ends of the front molded plate. This prevents tilled soil from spilling over. In addition, the soil protection cover can be adjusted up and down, so there is no spillage of tilled soil even when the tilling depth is changed, and it is easy to make adjustments when tightening the ridges.
In addition, because the lower edge of the soil protection cover is shaped like a boat when viewed from the side, it not only prevents the tilled soil from spilling out, but also prevents the tilled area from lateral vibration and acts as a straight-line guide, allowing the straight ridges to be straightened. can be molded correctly.

[Brief explanation of the drawing]

Figure 1 is a side view showing one embodiment of the present invention;
Figure 3 is a rear view of the same, Figure 3 is a plan view of the same, Figure 4 is a cutaway plan view of the main parts, Figure 5 is a sectional view of the covered state,
FIG. 6 is a sectional view showing a conventional covering strip. 5... Rotary device, 14... Ridge former, 15
... ridge, 17 ... membrane roll, 18 ... membrane body, 1
9...Membrane body delivery part, 27...Soil covering chute, 37
...Treading wheel, 43...Side plate, 44...Earth protection cover.

Claims (1)

[Scope of utility model registration request] At the rear of the center drive type rotary tilling section 8 of the rotary device 5, there are a front molded plate 10 that covers the rotary tiller 8 from behind, a side plate 43 protruding forward from both left and right ends of this front molded plate 10, and a front molded plate. In the tilling and furrowing machine equipped with a ridge shaper 14 that shapes the tilled soil gathered by the rotary tiller 10 into a ridge shape, an earth protection cover 44 covers substantially the entire left and right end sides of the rotary tiller 8 from the sides. The side plate 4
3, the soil protection cover 44 is provided so as to be freely adjustable in the left and right directions, and the soil protection cover 44 is also provided so as to be vertically adjustable.
Furthermore, the soil prevention cover 44 has a lower edge that is close to the outer peripheral edge of the tilling section 8 and has a straight bottom edge in the front-rear direction that penetrates into the soil, and a front edge that rises in an arc shape on the front side of this bottom edge. An earth protection device for a tillage furrow work machine, characterized in that it is shaped like a boat when viewed from the side.