JP4060825B2 - Mud removal equipment and agricultural machinery - Google Patents

Description

  The present invention relates to a mud dropping device capable of preventing mud mud from adhering to a wheel and removing the adhering mud and an agricultural machine equipped with the mud dropping device.

In agricultural machinery such as rice transplanters, if mud adheres to wheels while traveling on a field (mainly paddy fields, etc.), the mud falls during wheel rotation, and if it is traveling on the field, the seedlings planted are covered with mud or broken. In other words, various problems have been introduced, such as falling down and, if running on a paved road, leading to road contamination. In particular, when the amount of mud adhering to the wheels increases, the above problem becomes more serious, and when this adhering mud is dried and hardened, a new problem that it cannot be removed at the time of car washing is brought about.
Therefore, conventionally, an apparatus has been proposed that scrapes off the wheel using the rotation of the wheel while traveling on the mud adhering to the wheel (see, for example, Patent Document 1). This device has a structure in which a large frame is provided so as to surround the front, rear, left and right of the wheel, and the mud adhered to the outer peripheral surface (tread surface) of the wheel in excess of a predetermined amount is scraped off at the front and rear portions of the frame. It was.

It has also been proposed to fix a plate (blade) made of an elastic material inside the frame and scrape off the adhering mud on the side of the wheel with this plate.
JP 2001-80473 A

In the conventional apparatus for scraping off the adhered mud as described above, the structure becomes extremely large because a large frame exceeding the outer diameter of the wheel is required for each wheel. In addition, the result is an increase in the vehicle weight, which is unsuitable for a type of agricultural machine that runs in soft ground.
In addition, since the position of the frame cannot be adjusted relative to the wheel, there is a drawback in that it cannot be scraped off unless the amount of mud adhering to the wheel increases to some extent (unless it becomes a lump). In addition, there is a drawback that it is not possible to scrape mud adhering to the inner side of the tire portion of the wheel, such as the rim portion of the wheel. Furthermore, mud soil scraped off from the wheels adhered and accumulated at the front and rear portions of the frame, and when this became a certain amount of mass, there was a phenomenon of falling.

This frame is provided at the same height as the center of rotation of the axle of the wheel because it needs to be positioned corresponding to the outer diameter of the wheel, so the mud that is scraped off is from a relatively high position, It will be a momentum. This falling mud, combined with the tendency to become a certain amount of mass as described above, has led to the problem of rather breaking the planted seedlings during the field running.
The present invention has been made in view of the above circumstances, and the mud adhering to the wheel can be scraped off from a low position of the wheel while the amount of adhering is small, and various kinds of mud that occur due to this mud adhering. An object of the present invention is to provide a mud dropping device and an agricultural machine that can suppress various problems.

In order to achieve the above object, the present invention has taken the following measures.
That is, the mud dropping device according to the present invention is a mud dropping device for mud dropping a wheel having a spoke,
A vehicle body mounting portion, a support member protruding from the vehicle body mounting portion along the side surface of the wheel , and a rod-like member supported by the support member so as to extend from the protruding end side of the support member toward the wheel . A drainage member,
In order to remove mud adhering to the inner peripheral surface of the wheel, the waste mud member is close to or slightly in contact with the inner peripheral surface of the wheel so that the spoke crosses the midway portion in the longitudinal direction of the mud member. to, with and allowed to enter the inner peripheral side of the wheel, so as to permit passage of the spokes spokes exhaust mud member during wheel rotation causing the free bending upon contact with, flexible and elastic It is formed by a coil spring to have a resiliency.

Since the mud dropping apparatus of the present invention has the simple configuration as described above, there is no problem of increase in size and weight in an agricultural machine.
Further, in the support member, a main shaft protruding from the vehicle body mounting portion so as to extend in the front-rear direction along the side surface of the wheel, a first fixing member through which the main shaft is inserted, and a first fixing member disposed in parallel with the main shaft. A secondary shaft fixed to the fixture, and a second fixture through which the secondary shaft is inserted,
The mud draining member is cantilevered by the second fixture, and the first fixture is movable in the axial direction with respect to the main shaft and is rotatable around the axial center, and in an arbitrary axial direction position and arbitrary rotation. It can be fixed at an angular position, and the second fixing tool can be rotated around the axis with respect to the auxiliary shaft and can be fixed at an arbitrary rotation angle. if brought into a configuration which enables position adjustment in pairs to close to and away from the direction and the height direction, it can be appropriately set according to the desired support position of the waste sludge member, scraping mud at a relatively low position of the wheel Can be made possible.

From these things, the various problems which arise by mud adhesion to a wheel can be solved by attaching this mud dropping device to an agricultural machine.
On the other hand, the agricultural machine according to the present invention is, for example, a rice transplanter, and the vehicle body mounting portion of the mud dropping device according to the present invention is attached to an appropriate position of the vehicle body, and the projecting support is supported from the vehicle body mounting portion via a support member. It is proposed that the discharged mud member is provided below the rotation center of the axle .
This ensures that while small deposition amount of mud adhering to the wheel, and it can be scraped from the wheel low position in field traveling, the problems or defeat or folded seedlings planted in Falling mud Can be resolved.

  In the mud dropping apparatus and the agricultural machine according to the present invention, the mud adhering to the inner peripheral surface of the wheel can be scraped off from a low position of the wheel while the adhering amount is small. Can be suppressed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIGS. 3 to 7 show an embodiment of the mud dropping device 1 installed in the agricultural machine 1, and FIGS. 1 and 2 show the agricultural machine 2 of the present invention equipped with the mud dropping device 1. Yes. This agricultural machine 2 is an example applied to a rice transplanter. Accordingly, the rear wheel 3 attached to the agricultural machine 2 is a spoke wheel having the spoke 4, and the mud dropping device 1 is provided on the rear wheel 3 (hereinafter referred to as "wheel 3"). Yes.
As is apparent from FIG. 1, the mud dropping device 1 includes a vehicle body attachment portion 5, a support member 6, and a mud discharge member 7.

  The vehicle body attachment portion 5 is a portion for attaching the mud dropping device 1 to the vehicle body 10 of the agricultural machine 2. What is necessary is just to employ | adopt a structure suitably according to the vehicle form of the agricultural machine 2, the positioning of the wheel 3, the structure of the support member 6, etc. In this embodiment, the attachment location of the vehicle body attachment portion 5 to the agricultural machine 2 is the bottom portion of the vehicle body 10. The portion of the support member 6 that is supported by the vehicle body mounting portion 5 is a main shaft 12 formed of a round bar as will be described later. Therefore, the vehicle body mounting portion 5 has a bracket-type structure that can be fixed downward to the bottom of the vehicle body 10 and cantilever the main shaft 12 of the support member 6 toward the rear of the vehicle body in a substantially horizontal state.

The support member 6 is a portion that connects the vehicle body attachment portion 5 and the mud discharge member 7. The support member 6 has a main shaft 12 protruding from the vehicle body attachment portion 5. As apparent from FIG. 3, the main shaft 12 projects along the side surface of the wheel 3, and the drainage member 7 is connected to the projecting end side (rear end side) via the positioning means 15. The
A part of the mud discharge member 7 supported by the support member 6 is directed to an appropriate position of the wheel 3 and is close to or in contact with the wheel 3. The drainage member 7 of the present embodiment is formed by a coil spring. Accordingly, the mud draining member 7 has flexibility and elastic resilience in all directions in which the longitudinal direction is bent. It is also possible to form a rod shape with rubber or soft resin.

In this way, the mud discharging member 7 is formed in a rod shape, and the wheel 3 is a spoke wheel as described above. Therefore, the mud discharging member 7 inserts the midway part in the longitudinal direction into the inner peripheral side of the wheel 3. Thus, it is assumed to be held in a state where it is lightly brought into contact with the inner peripheral surface 3a. In this case, even if the wheel 3 rotates and the spoke 13 of the wheel 3 crosses the position of the exhaust mud member 7, the exhaust mud member 7 moves back and forth along the rotational direction of the wheel 3 as shown in FIG. 7. Since free bending occurs flexibly in the direction, the passage of the spokes 13 is allowed without any problem.
The positioning means 15 provided in the support member 6 includes a main shaft 12, a first fixing tool 16 inserted through the main shaft 12, a sub shaft 17 fixed to the first fixing device 16, and the sub shaft 17. And a second fixture 18 inserted through the. A holder 19 for holding the mud draining member 7 in the above supported state is provided for the second fixture 18.

In this embodiment, the mud draining member 7 is a coil spring. As shown in FIG. 6, the holder 19 is formed in a bottomed cylindrical shape that can be stored at one end of the coil spring without rattling. In addition, the lock bolt 31 is screwed into the nut portion 30 to prevent it from coming off.
The main shaft 12 is formed of a round bar. On the other hand, as apparent from FIG. 5, the first fixture 16 is formed in a donut shape, and a circular shaft hole 20 through which the main shaft 12 passes is provided in the center of the plate body. In addition, the disk body is provided with a radial slit 21 connecting the outer peripheral surface and the shaft hole 20 at one place in the circumferential direction, and a female screw hole to which a bolt 22 can be screwed on one side across the slit 21. A bolt through hole is formed on the other side of the slit 21 so as to penetrate the bolt shaft of the bolt 22 and accommodate the bolt head.

  Therefore, if the bolt 22 is tightened strongly, the slit 21 is narrowed and the shaft hole 20 is reduced by that amount, so that the first fixture 16 can be fixed to the main shaft 12, and conversely, if the bolt 22 is loosened, the slit 21. Is returned to the original gap, and the diameter of the shaft hole 20 is increased accordingly, so that the first fixture 16 can be moved with respect to the main shaft 12. When the first fixture 16 is movable with respect to the main shaft 12, the first fixture 16 is not only movable along the axial direction of the main shaft 12 but is also rotatable around the main shaft 12. . And fixation in an arbitrary axial direction position and an arbitrary rotation angle position is possible.

An auxiliary shaft 17 circumscribing the outer peripheral surface of the first fixture 16 is fixed. When the first fixture 16 is inserted through the main shaft 12, the main shaft 12 and the sub shaft 17 are parallel to each other.
The auxiliary shaft 17 is also formed of a round bar. The second fixture 18 has substantially the same structure as the first fixture 16 described above, is a donut board shape, has a circular shaft hole 23, a slit 24, a female screw hole for a bolt 25, and a bolt through hole. Bolts 25 are attached to the female screw holes and bolt through holes. Therefore, the second fixing tool 18 is rotatable around the auxiliary shaft 17 and can be fixed at an arbitrary rotation angle.

However, as compared with the first fixture 16, the second fixture 18 has a donut-shaped outer diameter that is slightly smaller than the outer diameter of the second fixture 18. There is no contact interference.
In such positioning means 15, when the first fixture 16 is moved in the axial direction of the main shaft 12, the auxiliary shaft 17 and the second fixture 18 are positioned in the horizontal radial direction of the wheel 3 together with the first fixture 16. As a result, the position of the mud discharging member 7 can be adjusted in the direction in which the mud draining member 7 is moved closer to and away from the inner peripheral surface 3 a of the wheel 3.

  Further, when the first fixing tool 16 is rotated around the main shaft 12, the sub-shaft 17 and the second fixing tool 18 are circumferentially moved around the main shaft 12 together with the first fixing tool 16. If the movement range when the second fixing tool 18 moves in a planetary manner around the main shaft 12 is a lower region with respect to the main shaft 12, the second fixing device 18 includes a moving component along the axial direction of the wheel 3. (Indicated by a two-dot chain line in FIG. 5). Further, if the movement range when the second fixture 18 moves in a planetary manner around the main shaft 12 is a lateral region with respect to the main shaft 12, the second fixture 18 includes a moving component along the height direction. It will be.

Therefore, it is possible to adjust the position of the mud discharge member 7 provided on the second fixing tool 18 as the amount and height position to be inserted into the inner periphery of the wheel 3. However, when the first fixture 16 is rotated around the main shaft 12, the second fixture 18 is also rotated in the opposite direction relative to the sub shaft 17, so that the mud draining member 7 maintains a substantially horizontal posture. It is necessary to.
In this way, the mud discharging member 7 is set at a position lower than the center of rotation of the axle of the wheel 3. The sludge member 7 may be lightly slidably contacted with the inner peripheral surface 3a of the wheel 3, or may be brought close to the slidable member 7 without being slidably contacted.

In the agricultural machine 2 equipped with the mud dropping device 1 having such a configuration, even if the mud is likely to adhere to the wheel 3 after traveling in the field or the like, the mud is discharged while the mud is being rolled up with the rotation of the wheel 3. It will hit the mud member 7 and be surely scraped off. Since the mud discharging member 7 is provided at a relatively low position of the wheel 3, the mud soil to be scraped off does not form a large lump and falls before almost no momentum of dropping.
In addition, when the waste mud member 7 is made to contact lightly with the inner peripheral surface 3a of the wheel 3, the sludge member 7 causes a slight vibration as the wheel 3 rotates, and the waste mud member 7 Since the sludge member 7 will cause a large vibration due to free bending and its elastic restoring operation at least when the spoke 4 passes, even if it is just brought close to the inner peripheral surface 3a of the wheel 3 without sliding. The action of scraping off the mud by the mud discharging member 7 is strong and reliable.

From these things, it is possible to prevent mud fogging, folding, and falling of the planted seedlings while traveling in the field. In the first place, there is almost no adhering mud at the time of running on the paved road, even if mud is adhering, the amount of adhering is small, and even the adhering mud is scraped off at an early stage when running on the paved road. As a result, contamination of the paved road can be prevented.
By the way, the present invention is not limited to the above-described embodiment, and can be appropriately changed according to the embodiment.
For example, the wheel 3 may be a front wheel.

Not to be applied to a rice transplanter is limited as agricultural machine 2, it may be other vehicles.

1 is a side view showing an embodiment of an agricultural machine according to the present invention. It is an enlarged view of the principal part (wheel periphery) in FIG. It is an AA line enlarged arrow view of FIG. FIG. 4 is a partially enlarged view of FIG. 3. It is a BB line enlarged arrow line view of FIG. It is the plane sectional view expanding and showing the support part of a mud drainage member. It is the figure explaining a mode that a spoke passes a drainage member (equivalent to the CC line arrow figure of Drawing 2).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mud drop device 3 Wheel 4 Spoke 5 Car body mounting part 6 Support member 7 Drainage member 15 Positioning means

Claims (3)

A mud dropping device for removing mud of a wheel (3) having a spoke (4),
A vehicle body mounting portion (5), a support member (6) protruding from the vehicle body mounting portion (5) along the side surface of the wheel (3), and a wheel (3) from the protruding end side of the support member (6) And a rod-shaped drainage member (7) that is cantilevered by the support member (6) so as to extend toward
The drainage member (7) is arranged so that the spoke (4) crosses the longitudinal direction halfway portion of the drainage member (7) and the wheel (3) in order to drop the mud adhering to the inner peripheral surface of the wheel (3). 3) It is made to enter the inner peripheral side of the wheel (3) so as to come close to or lightly contact with the inner peripheral surface of 3), and at the time of rotation of the wheel (3), the spoke (4) ) is to allow the passage of the spokes causes a free bending upon contact with (4), scraping device, characterized in that it is formed by a coil spring to have a flexible and elastic recovery properties . The support member (6) includes a main shaft (12) projecting from the vehicle body mounting portion (5) so as to extend in the front-rear direction along the side surface of the wheel (3), and a first shaft through which the main shaft (12) is inserted. One fixing tool (16), a sub-shaft (17) arranged in parallel to the main shaft (12) and fixed to the first fixing tool (16), and a second fixing through which the sub-shaft (17) is inserted A tool (18),
The mud draining member (7) is cantilevered by the second fixture (18), and the first fixture (16) is axially movable with respect to the main shaft (12) and rotates around the axis. It is movable and can be fixed at an arbitrary axial direction position and at an arbitrary rotational angle position, and the second fixture (18) is rotatable around the axial center with respect to the auxiliary shaft (17) at an arbitrary rotational angle. by being fixable, claims, characterized in that in the positionable in close to and away from the direction and the height direction waste sludge member (7) against the inner peripheral surface of the wheel (3) 1 Symbol placement of mud removal device. In the agricultural machine to which the agricultural wheels (3) are attached, the vehicle body attachment portion (5) of the mud dropping device (1) according to claim 1 or 2 is attached to an appropriate position of the vehicle body (10). An agricultural machine characterized in that a drainage member (7) that is supported by projecting from a vehicle body attachment portion (5) through a support member (6) is provided below a rotation center of an axle .

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