JP2632382B2 - Crusher - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soil crusher that is suitably used for performing landscaping suitable for germination, germination, and growth of various seeds, particularly turf, sown in a field.

Problems to be solved by the prior art and invention When producing seedlings such as turf, after sowing seeds in a field,
Fields are dug up by a crusher called a halo, leveled, and the ground is made to be suitable for seed germination, germination, and growth.

Conventionally, a square halo as shown in FIG. 8 has been generally used as the earth-crushing machine. This rectangular harrow is formed by arranging a large number of metal tooth protrusions b on a lower surface of a wooden or metal square frame a at a predetermined interval and projecting in a grid pattern. When the seeds are sown on the field, the square halo is pulled by a towing vehicle d such as a tractor or a jeep via the connecting portions c and c, and is ground by the tooth protrusions b as shown in FIG. e is excavated and ground is formed by crushing soil, and at the same time, seeds sown in a field are planted.

However, in this case, as shown in FIG. 10, weeds, residues, and the like f in the field are caught on the tooth b, and the seeds g sown on the ground surface move laterally, and the seeds are transferred to the field. There is a missing part. Therefore, when the seed grows and harvests, many defects occur, which is uneconomical. In addition, if there is unevenness in the ground, the depth of digging of the tooth protrusion b (i in FIG. 9) will not be constant, and the seed planting depth will not be constant, thus causing a variation in growth. There is.

Also, instead of toothed rod projections, several disk-shaped disk blades are rotatably provided, and the disk blades are used to cut and break up the earthen mass. Although the disc harrow is prevented as much as possible from having no seeds in the field due to weeds, residues and the like as described above, it has a problem that the function of digging up the crushed soil and leveling it is inferior. .

The present invention has been made in view of the above circumstances, and it is possible to uniformly crush a field, excavate and level it, level the seeds, and evenly seed the seeds, and to germinate, settle, and grow the seeds uniformly and well. It is an object of the present invention to provide a soil crusher capable of performing crushing.

Means for Solving the Problems The present invention, in order to achieve the above object, is connected to a towing vehicle such as a tractor, tow, dig a field by digging the field, crushing the soil, leveling the soil, a soil crusher, Body, a cylindrical drum or a cylindrical drum base, a toothed drum having a large number of soiling toothed rod projections protruding from the outer peripheral surface of the drum base, and wheels, and two or more toothed drums are horizontally arranged in the frame. And rotatably mounted in parallel with each other with their axial directions shifted from each other in the same direction, and mounted on both sides of the frame so that wheels can be rotated and the position of the center of rotation can be changed along the vertical direction. The present invention provides a soil crusher characterized by the following.

In other words, the earth-crushing machine of the present invention is one in which the ground is crushed, digged, and leveled by the crushing toothed rod protrusion protruding from the toothed drum by pulling the field with a towing vehicle such as a tractor. .

In this case, while rotating the toothed drum, the ground is dug up by the toothed protrusion protruding from the outer peripheral surface of the peripheral wall, and the ground is crushed, so that weeds and residues are not caught on the toothed protrusion, and two or more teeth are formed. Are provided at different angles with their axial directions shifted from each other, so that the toothed protrusions projecting from the respective toothed drums have different angles of insertion into the ground, so that the earth mass is very finely crushed. be able to. Also,
In the earth-crushing machine of the present invention, the wheels are rotatable, and the position of the center of rotation is attached so as to be changeable in the vertical direction, so that it is easy to route, and even in a field with irregularities, the wheels can be rotated. It can be excavated at a certain depth defined by the height difference from the toothed drum, and crushing can be performed.Furthermore, by raising and lowering the position of the center of rotation of the wheel, the excavation depth can be adjusted according to the type of seed and the like. Can be adjusted.

Accordingly, crops can be satisfactorily and uniformly grown by cultivating a field with the soil crusher of the present invention.

An embodiment of the present invention will be described below with reference to FIGS.

〔Example〕

In the figure, reference numerals 1a, 1b, and 1c denote soil crushers according to an embodiment of the present invention, respectively. These earth crushers 1a, 1b, and 1c are connected to each other as described later.

Here, since the basic configuration of these soil crushers 1a, 1b, 1c is the same, only the configuration of one soil crusher 1a will be described.
The configuration of the other soil crushers 1b and 1c is denoted by the same reference numeral, and description thereof is omitted.

The one earth-crushing machine 1a includes a wooden or metal square frame 2, two toothed drums 3,3, and two wheels 4,4. As shown in FIGS. 3 and 5, the toothed drums 3 and 3 have a large number of earth-crushing toothed rod projections 6 on the peripheral surface of a cylindrical drum base 5 having both end faces closed. It is configured to protrude radially at predetermined intervals along the direction and the axial direction. In addition, these crushing tooth rod projections 6 are formed by connecting a plate-shaped tooth body 8 to the tip of a rod-shaped tooth support member 7.

The toothed drums 3, 3 are disposed within the frame 2 and are disposed along the horizontal direction and displaced from each other by a predetermined angle α by shifting their axial directions. One of the side punches 9, 9 is rotatably mounted on an inner surface thereof. Here, the angle α crushes and excavates the field well,
The angle is set to an arbitrary angle at which the weeds, the residue, and the like in the field do not get caught on the rod projection 6, and the angle is usually, but not particularly limited to, 5 to 30 degrees. Further, as shown in FIGS. 4 and 5, the shaft mounting structure of the toothed drum 3 and the side rod 9 of the frame 2 is provided on the lower surface of the bottom wall of the frame side rod 9 having a substantially U-shaped cross section. A body 11 is fixed by two sets of bolts and nuts 12, and a shaft 13 projecting from the center of the end face of the toothed drum 3 is rotatably supported on the bearing 11.

The wheels 4, 4 are attached to the outside of the side rods 9, 9 of the frame 2 so as to be rotatable and the position of the center of rotation can be changed along the vertical direction. More specifically, as shown in FIGS. 4 and 6, a fork 14 having an inverted U-shaped cross section is attached integrally to the side rod 9 outside the center of the side rod 9 of the frame 2. Both sides 15a, 15b of this fork 14
Support plates 17a, 17b formed with notches 16a, 16b extending from the distal edge to the vicinity of the proximal end are formed integrally at the upper central portion of the outer surface, and the one of Cutout
16a and a cut-out 1 of the one notch 1
6a and screw rod 19a so that they can move vertically
Are inserted, and a similar screw rod 19b is inserted through the other cutout 16b so as to be vertically movable, and these two screw rods 19a and 19b are respectively connected to two upper and lower nuts 2a.
It is fixed to the support plates 17a, 17b by 0,21. At the lower ends of the two screw rods 19a, 19b, square plate-shaped fixing pieces 21a, 21b having guide grooves 20a, 20b formed at a predetermined length from the center of the lower end edge are integrally provided continuously. Groove 20
While bearings 22a and 22b are inserted into a and 20b respectively,
These bearings 22a and 22b are screwed with nuts 23 and 24 on screw portions formed on the respective outer peripheral surfaces, and tightened.
It is fixed to the fixing pieces 21a and 21b. The front ends of the axles 25a, 25b of the wheels 4 are formed to have a predetermined length above the lower end central portions of the side plates 15a, 15b of the fork 14, so that the axles 25a, 25b can move up and down. Guide slot 26
The bearings 22a, 22b are rotatably supported by the bearings 22a, 22b, respectively. Thus, the axles 25a, 25b of the wheels 4
Screw rods 19a, 1 for supporting and fixing bearings 22a, 22b supporting
By operating the nuts 20 and 21 that fix the 9b to the support plates 17a and 17b to move the screw rods 19a and 19b in the vertical direction, the axles 25a and 25b of the wheel 4 (the rotation center of the wheel 4) Hawk 1)
It is possible to move vertically inside the guide slots 26a, 26b formed in both side plate portions 15a, 15b of FIG.

The one earth-crushing machine 1a is provided with connecting pieces 28, 28 protruding from both ends of the front rod portion 27 on the outer surface in the length direction thereof, and a triangular frame having a front portion connected to a towing vehicle 29 such as a tractor or a jeep. The rear connecting portion 30 is connected to the rear portion of the connecting member 30 by pins 31, 31, and the rear rod portion 32 is respectively extended outward, and the extending end portion of the other two soil crushers 1 b, 1 c is The front rods 33, 33 are connected by pins 35, 35 via triangular connection rods 34, 34.

In addition, the rear rods 36, 36 of the other two earth-crushing machines 1b, 1c are connected to each other via a connecting member 37, and a large number of chains 38 are attached to the rear rods 36, 36, respectively. ing.

When cultivating a field using this soil crusher, first, the axles 25 of the wheels 4 of the soil crushers 1a, 1b, 1c are operated by operating the nuts 20, 21 to move the screw rods 19a, 19b up and down. Along the direction, adjust the digging depth (a in Figs. 4 and 6) of each soil crusher 1a, b, 1c to an arbitrary depth according to the type of seed, etc. Connected triangular connecting member 30
Is connected to a towing vehicle 29 such as a tractor or jeep.
The field in which seeds such as turf are sown with this soil crusher is pulled around by the towing vehicle 29, the field is dug up by the toothed projections 6 of the toothed drum 3, crushed, and the field is leveled by the chains 38.

According to the earth-crushing machine of this example, the two toothed drums 3 are rotatably supported in the frame 2 at an arbitrary angle α different from each other in the direction of the axis. An object or the like does not get caught on the toothed protrusion 6, and the toothed protrusion projecting from the first toothed drum and the toothed protrusion projected from the second toothed drum are moved to the ground. Since the tooth denting angles are different, that is, the digging angles are different, the earth mass can be finely crushed and dug up uniformly, and therefore the seeds and the soil can be uniformly mixed. In addition, by providing wheels, it is easy to route, and it is possible to excavate and crush soil at a constant depth even in uneven fields, and to adjust the position of the center of rotation of the wheels in the vertical direction to adjust the seeds. Terrain can be performed at an arbitrary depth according to the type of the ground. Therefore, the crop can be satisfactorily and uniformly grown. Also, in this example, since three earth-crushing machines 1a, 1b, and 1c are connected, it is possible to crush and excavate a wide area by a single towing, and to further level the crushed earth and the excavated ground with a chain 38. Can be.

In the present embodiment, an example in which three earth-crushing machines are connected is illustrated, but the earth-crushing machine of the present invention is not limited to this.
A single machine may be used, or two or more machines may be used in combination. Further, the shape, structure, etc. of each member constituting each earth-crushing machine are not limited thereto. For example, a cylindrical drum base 5 having both ends closed as shown in FIG. The long flat plate-shaped toothed protrusion 6 may be directly provided on the peripheral surface of the first member without the intervention of the tooth supporting member. Also, the mechanism for changing the position of the center of rotation of the wheel in the vertical direction may be any mechanism as long as the position of the center of rotation of the wheel can be changed in the vertical direction with respect to the frame body. Other configurations may be variously modified within the scope of the present invention.

Effect of the Invention As described above, according to the soil crusher of the present invention, weeds, residues and the like in the field are not caught on the tooth rods, and the field is crushed uniformly, excavated, and seeds are evenly planted. In addition, the depth of excavation can be appropriately changed according to the type of seeds and the like, so that the seeds can be germinated, activated, and grown uniformly and favorably.

[Brief description of the drawings]

FIG. 1 is a plan view showing a soil crusher according to one embodiment of the present invention,
2 is a side view of the crusher, FIG. 3 is a cross-sectional view showing a toothed drum constituting the crusher, FIG. 4 is an enlarged side view showing a wheel portion of the crusher, and FIG. FIG. 6 is an enlarged sectional view showing the wheel portion, FIG. 6 is an enlarged sectional view showing another example of the toothed drum constituting the soil crusher of the present invention, FIG. Fig. 9 is a perspective view showing a conventional soil crusher, Fig. 9 is a side view showing the soil crusher, and Fig. 10 is a plan view showing a state of a field when the field is laid with the earth crusher. . DESCRIPTION OF SYMBOLS 1 ... 1a, 1b, 1c ... Earth crusher 2 ... Frame, 3 ... Toothed drum 4 ... Wheels, 5 ... Drum base 6 ... Toothed rod projection, 29 ... Towing vehicle

Claims (2)

(57) [Claims] Claims: 1. A tractor or other towing vehicle is connected and towed,
A soil crusher for digging up a field by digging up a field, crushing the soil, and leveling the soil, comprising a frame, a toothed drum having a large number of crushed tooth protrusions protruding from the outer peripheral surface of a cylindrical or cylindrical drum base. , Wheels, and two or more toothed drums are rotatably mounted in the frame body in a horizontal direction and rotatable with their axial directions shifted from each other, and the wheels are rotated on both sides of the frame body. A soil crusher characterized by being mounted so as to be able to change the position of the center of rotation along the vertical direction. 2. A soil crusher, wherein several soil crushers according to claim 1 are connected.