JPS6316561Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is an improvement of the pressure roller/drive wheel that is installed in various agricultural working machines such as seeding machines, fertilizer applicators, pesticide sprayers, and liquid injection machines. It is related to.

(b) Prior Art It has been known to provide a projection on the outer periphery of the drive wheel of an agricultural working machine to ensure rotation.

For example, Japanese Utility Model Publication No. 46-23927 and Japanese Utility Model Publication No. 31-
This is similar to the technique described in Publication No. 5209.

(c) Problems to be solved by the invention A drive wheel with protrusions becomes unable to rotate when roots or stems are caught between the scraper and the protrusions, and as they are dragged along, not only does it cause an excessive load, but it also causes seeds and This causes the inconvenience of discontinuing the delivery of fertilizers, pesticides, soil disinfectants, etc., and having to stop the work to remove roots and stems caught between the protrusions and scraper, which significantly reduces work efficiency. It had dropped significantly.

Therefore, in the pressure roller that also serves as the drive wheel of agricultural machinery, the protrusion was removed and a rubber plate with many fine parallel protrusions was attached to the circumferential surface of the pressure roller, and the protrusions were dug into the ground to ensure a secure grip. Suppression roller of rotating agricultural working machine (Utility Application No. 54-182100
No. 56-97921)) was proposed, which solved the rotational problems caused by roots and stems that were present in conventional drive wheels.

Although this driving wheel/pressure roller rotates reliably on clay-based cultivated land, there was a problem in its reliable rotation on cultivated land such as sandy soil or volcanic ash.

This invention was devised to solve this problem. Several strips with protrusions are wrapped around both sides of the drive wheel and removably fixed with bolts. A strip with protrusions is attached to ensure that the drive wheel rotates, and in clayey farmland, the strip with protrusions is removed to allow the drive wheel to rotate, thereby ensuring constant rotation of the drive wheel depending on the geology of the cultivated land. They succeeded in securing the .

In addition, it is required that the strip with protrusions can be easily attached and detached, and in the present invention, the protrusions 35 at the ends of the strip with protrusions 33 are used as fastening parts, and the protrusions are 35.35 bolt 3
6 and a nut 37, it can be used as a pressure roller and a driving wheel with a protrusion.

(d) Means for solving the problem The purpose of the present invention is as described above, and next, the configuration for achieving the purpose will be explained.

A rubber plate 30 with parallel protrusions, in which a large number of fine protrusions 31 parallel to the direction of travel are provided at a constant pitch, is pasted on the entire outer circumference of the suppressing roller/driving wheel 22. On both sides of the protruding pieces 34...
and 35 are welded at equal pitches, and the strip 33 with protrusions is removably configured, and the protrusions 35 at the ends of the strip 33 with protrusions are tightened with bolts 36 and nuts 37, and the fastening portion and the protrusions are connected. It is used for both purposes.

(E) Embodiment The purpose and structure of the present invention are as described above. Next, the structure of the embodiment shown in the attached drawings will be explained.

In the embodiment shown in the drawings, reference numeral 1 denotes a tool bar with a hexagonal cross section, and a vertical rod 2 is fixed to a cylinder metal (not shown) fixed at the center, and this vertical rod is attached to a hitch fitting (not shown) of a tractor or tiller. The tool bar 1 is suspended horizontally by being connected.

3 is the frame of the seeding machine, which extends long from front to back.
The main rods 4 of the book are arranged in parallel, and a horizontal bar 5 and a rear shaft 6 are connected to the center and rear ends of the main rods, respectively, to form a rectangular frame. Stack them one on top of the other and secure them.

The main rod 4 of the frame loosely fits the cylinder 9 at the front end into the cylinder 10 whose outer surface is circular and which is fixed to the tool bar 1.
Thereby, the frame 3 is mounted on the tool bar 1 so as to be able to swing up and down.

Reference numeral 11 denotes a diagonal suspension plate, which is fixed to a fixed tube metal (not shown) of the tool bar 1 and extends rearward and upward.
A press rod 12 whose lower end annular portion is loosely fitted to the horizontal bar 5 in the frame is inserted into this, and a spring 13 is inserted into the press rod 12.
is rolled up and a retaining pin 14 is inserted into its top end, and the elasticity of the spring 13 pushes down the frame 3 using the tool bar 1 as a fulcrum.

Reference numeral 15 denotes a grooved plate that is V-shaped when viewed from above, and a suspension rod 16 inserted into the vertical tube 7 is fixed adjustable with bolts and mounted at the lower center of the frame 3, and the sharp end of the front edge is attached to the ground. Cut a groove of a certain width by digging it into the groove.

Reference numeral 17 denotes a soil covering plate fixed to the rear upper corner of the groove cutting plate 15, which is curved inward in an arc shape when viewed from above, and contacts the ground in a downward downward posture when viewed from the side, so that the groove cutting plate 15 covers the ground. Rake the soil and fill in the grooves.

18 is a feeding box attached to the bottom opening of the seeding box 19;
The protruding piece on the front is fixed to the mounting piece 8 with bolts and mounted in the center of the frame 3, and the operating shaft 20, which passes through approximately the middle of the feeding box, is supported on the main rod 4 of the frame, and is inserted from the bottom surface of the feeding box. A protruding seed discharge pipe 21 is made to look into the grooved plate 15.

The dispensing box 18 has a built-in roller with a recess around it and a brush that comes in contact with the roller, and the recessed roll is fixed to an operating shaft 20 and rotated, and the seeds stored in the seed box 19 are put into the recess and dispensed in appropriate amounts. It is fed out, and the discharge pipe 21 is momentarily opened to sow the seeds.

22 is a large-diameter pressure roller/driving wheel fixed to the rear shaft 6 of the frame, which presses the ground with its own weight and rotates due to contact friction with the soil, and serves as a driving source for the chain ring 23 fixed on the same axis. .

24 is a chain ring fixed to the operating shaft 20 of the feeding box;
A chain 25 is connected to this and the chain ring 23 on the rear shaft, and a case 26 is placed over the chain ring 23, and the operating shaft 20 is rotated using the suppressing roller/driving wheel 22 as a driving source.

27 is an arm rod that extends rearward from the main rod 4 of the frame, and a scraper (not shown) is attached to this arm as necessary.
Attach the pressure roller and drive wheel 22 to scrape off soil and rhizomes attached to it.

Reference numeral 30 denotes a rubber plate with parallel protrusions that surrounds the pressure roller/drive wheel 22. A large number of fine protrusions 31 are provided in parallel over the entire surface at a constant pitch, and the protrusions 31 are arranged in the circumferential direction of the pressure roller. It is attached to the entire circumferential surface of the driving wheel 22. Here, the cross section of the protrusion 31 is made into a trapezoid with a concave shape, and each groove 32 between the protrusions is made into a trapezoid whose outside is slightly wider.

The above configuration is an example of a unit type seeding machine.
Attach several seeding machines to the tool bar 1 and press the spring 13
The elasticity of the frame 3 is pressed down to press the grooving plate 15 and the pressure roller/driving wheel 22 against the ground, and as the tractor or tiller moves forward, the grooving plate 15 bites into the ground and cuts grooves, and the pressure roller/drive wheel 22 is pressed against the ground. As the drive wheel 22 rotates, the feeding box 18 discharges seeds into the grooves, the soil covering plate 17 scrapes up soil to fill the grooves, and then the pressure roller/drive wheel 22 compresses the ground. go.

In this seeding machine, many small protrusions 31 of the rubber plate 30 with parallel protrusions attached to the drive wheel dig into the ground, increasing the contact area between the pressure roller and drive wheel 22 and the ground, so that clay The drive wheel rotates reliably and drives the seed dispensing box 18 without slipping at all in the cultivated land.

Since this suppressing roller/driving wheel 22 does not have a protrusion to ensure rotation as in the conventional case, no rotational trouble occurs due to roots or stems being caught between the scraper and the protrusion.

Also, since the grooves 32 between adjacent ridges are made wider on the outside, when the many fine ridges 31 cut into the ground leave the ground, the soil tends to separate from the grooves 32, and therefore the ridges 31 When the soil adhering to the outer surface of the grooves 32 is scraped off with a scraper, most of the soil in the grooves also falls down, so there is almost no possibility that the grooves 32 will become clogged with soil.

In the present invention, in such a seeding machine and other agricultural working machines, several strips 33 with protrusions are detachably attached to both side edges of the pressure roller/driving wheel 22.

An embodiment of the present invention will be described based on the drawings.

Numerals 33 and 33 are strips with protrusions that extend halfway around the suppression roller/driving wheel 22. Several protrusions 34 and 35 are welded at equal pitches, and the protrusions 35 and 35 at both ends are tightened with bolts 36 and nuts 37. Then, it is removably fixed to both side edges of the pressing roller/driving wheel 22, and screwed in with a bolt 38 for preventing slippage.

Here, the strip 33 with protrusions is curved into a semicircle, the protrusions 34 are made in an inverted T-shape and welded to the strip, and the protrusions 35 are made in an L-shape and welded to the strip.

Further, the strip 33 with protrusions is shifted and fixed on the right side edge and the left side edge of the drive wheel 22, and the protrusions 34 and 35 are arranged alternately.

One embodiment of the present invention has the above configuration, and when this seeding machine is used in cultivated land such as sandy soil or volcanic ash land, the scraper is removed and the strip with protrusions is removed.
3 and 33 are attached to both side edges of the suppression roller/driving wheel 22. In this seeding machine, the protrusions 34 and 35 attached to both side edges of the pressure roller and drive wheel 22 bite into the ground, so the pressure roller and drive wheel 22 is reliably rotated to drive the feeding box 18.

Since sand and volcanic ash do not adhere to the protrusions 34 and 35, there is no problem even if the scraper is not attached, and therefore no rotational trouble will occur due to rhizomes being caught between the protrusions and the scraper.

The above is an explanation of one embodiment of the present invention, and the present invention is not limited to this embodiment, and the design can be changed within the gist of the invention.

Furthermore, the present invention can be widely used as a drive wheel for agricultural working machines such as unit-type seeding machines, various seeding machines, fertilizers, pesticide sprayers, and liquid injection machines.

(f) Effects of the invention Since the invention is constructed as described above, it has the following effects.

First, since the strips with protrusions are removably attached to both sides of the drive wheels of agricultural working machines, the strips with protrusions 33 make it possible to reliably rotate the drive wheels in cultivated fields such as sandy areas and volcanic ash areas. It can be done.

In addition, in clayey cultivated land, the belt strip 33 with protrusions is removed and the rubber plate 30 with parallel protrusions is rotated by the many fine protrusions 31, so the driving wheel can be rotated on cultivated land of any soil type. This has the effect of ensuring rotation.

Second, the protrusion 35 at the end of the strip 33 with protrusion
35 is also used as a fastening part that is fastened by the bolt 36 and nut 37, and after fastening, this part acts as the protruding piece 35, so there is no need to provide a separate fastening part, and the protruding protruding pieces 35, 35 Since it is also used as a fastening part, the bolt 36 and nut 37 can be easily attached and detached.

[Brief explanation of the drawing]

FIG. 1 is a side view of a seeding machine equipped with an embodiment of the present invention, FIG. 2 is a side view of a drive wheel, and FIG. 3 is a front view of the drive wheel. 22... Squeezing roller and drive wheel, 30... Rubber plate with parallel protrusions, 31... Many fine protrusions, 33
...Strip with protrusion, 34, 35...Protrusion.

Claims (1)

[Scope of utility model registration request] A rubber plate 30 with parallel protrusions, in which a large number of fine protrusions 31 parallel to the direction of travel are provided at a constant pitch, is pasted on the entire outer circumference of the suppressing roller/driving wheel 22. On both sides of the protruding pieces 34...
and 35 are welded at equal pitches, and the strip 33 with protrusions is removably configured, and the protrusions 35 at the ends of the strip 33 with protrusions are tightened with bolts 36 and nuts 37, and the fastening portion and the protrusions are connected. A drive wheel for an agricultural working machine that is characterized by being used for both purposes.