JPH0531843Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention relates to a ridge leveling machine, and particularly to a ridge leveling machine that excavates muddy soil, mounds it up into ridges, and arranges the raised soil with a ridge plate. Regarding improvements to.

Conventional technology: Ridges are built in rice fields to store water by weiring them, to create borders with other people's fields, or to serve as footpaths for agricultural work. Such ridges are considered to be good if they do not leak water, do not collapse even when people walk on them, and are stable without changing in height or width.

In order to create such ridges, conventionally, a tiller is used to make soil at the edge of the ridge, then the weathered soil and grass on the surface of the ridge is removed with a hoe, and then the soil is poured into the remaining area. Another method is to place it on top and beat it with a hoe. In addition, since this method had low work efficiency, a mechanized ridge-leveling machine was developed, and the ridge-leveling machine also had the disadvantage that it could only be used during periods of high water, which was improved by replenishing water with a pump. things were also developed. However, this also requires labor and the operation of the machine is cumbersome, so a ridge adjustment machine has been developed that improves these drawbacks and can be used throughout the spring and autumn seasons. This involves digging up soil with a rotor, mounding it up, and then pounding the mounded soil with a board. The tapping plate of this ridge leveling machine is connected to a rod provided on the power output shaft of the tractor via a crank mechanism, and is rotatably connected to two parallel links rotatably connected to the machine frame. Since it has been
The forward and backward movement of the rod is controlled by the deformation movement of the parallelogram by the two links, and the rod is operated in a fixed direction. However, this ridge leveling machine also has the problem that the striking force of its ridge beating plate is applied to the top surface of the ridge, and the striking pressure on the sides is insufficient, so it is necessary to have a striking plate exclusively for this side. Another problem was that it had many mechanically connected parts and was prone to failure. As an improvement to this, we developed a ridge leveling machine that uses a hydraulic system consisting of a hydraulic pump and piston device to move oil forward and backward, like a water gun, to move a nearly square-shaped ridge beating board forward and backward.

However, in the case of this ridge leveling machine and any of the previous ridge leveling boards, if the ridge beating plate is made of iron plate, the weight will be as much as 8 kg, for example, and the ridge pounding operation is performed by moving it forward and backward using the advancing and retracting mechanism. In order to do this, it may not be possible to move the ridge pounding board to follow the movement of the advance/retreat mechanism. If this is not possible, the speed of the ridge pounding operation cannot be increased, and when trying to improve work efficiency in the factory. There was a problem. In addition, when operating a heavy ridge-beating board like this, an excessive load is placed on the advancing and retracting mechanism, making it more likely to malfunction, and a ridge-beating board made of iron plate is prone to rust. It was hot too.

Problems that the invention aims to solve As mentioned above, when the ridge pounding plate of a conventional ridge straightening machine is made of iron plate, it becomes heavy, making it difficult to perform the ridge pounding operation smoothly, and causing rust. There was a problem that it was easy to use, and improvement of this problem was desired.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides an earth raising means for digging and mounding mud in the machine frame, and a ridge plate for leveling the mud raised by the earth raising means. The present invention provides a ridge adjustment machine having the following features: the ridge adjustment plate is molded using fiber-reinforced resin as a main component.

Function: Since the ridge plate is molded from fiber-reinforced resin, its weight can be reduced, and unlike iron, it does not rust.

Embodiment Next, an embodiment of the present invention will be described based on FIGS. 1 to 4.

In Fig. 1, T is a tractor and A is a ridge leveling machine.The machine frame 1 of the ridge leveling machine A is attached to a mounting frame a provided at the rear upper part of the tractor T via links b and c. It is rotatably connected to rotatable links d and e provided on both sides of the rear lower part of the tractor, and furthermore, the length of the front upper part of this machine frame 1 and the center of the rear upper part of the tractor can be adjusted freely. The ridge straightening machine A, which is connected by an adjustment link f and held at a predetermined angle by the adjustment link f, can be rotated downward via the mounting frame a, which is rotated by a hydraulic device (not shown); Further, by rotating the mounting frame a above by this hydraulic system, it can be returned to its original position.

In the above-mentioned ridge adjustment machine A, a reducer is connected to a power transmission shaft which is connected to a power take-off shaft g of a tractor via a universal joint (not shown), a transmission shaft is connected to this reduction gear, and a transmission shaft is connected to this transmission shaft. A rotor R is attached, whereby the rotational force of the power transmission shaft is decelerated and directed by the reduction gear to the transmission shaft, and further, the rotation direction is opposite to the rotation direction corresponding to the traveling direction of the tractor. The shaft of the rotor R is oriented substantially perpendicular to the direction of travel of the tractor, and the rotation direction thereof is opposite to the direction of rotation with respect to the direction of travel of the tractor. Furthermore, 1' is a cover plate that covers the upper part and both sides of the rotor, and 1'a is a vertical moving plate having wheels that run on the upper surface of the ridge.

Further, although not shown in the ridge adjustment machine A, a plunger pump like a water gun is connected to the speed reducer via a crank mechanism, and a flexible tube 2 made of rubber or the like is connected to the plunger pump. A piston device 3 is connected to this.

This piston device 3 is provided with a sleeve 3a which is movable back and forth together with a piston rod 3b of a piston inserted into a cylinder, although the details are omitted from the drawings, and a spring is provided between this sleeve and the cylinder, which causes hydraulic pressure. The spring is compressed by the sleeve 3a which is pushed down together with the piston rod due to the action of
a is pushed up. This piston device 3 is rotatably supported by a support frame 4, and its rotation range is limited by a ridge beating plate return mechanism 5 so that it can return to its original position.

The piston rod 3b is provided in the direction toward the core of the ridge, and at its tip is rotatably attached a ridge-beating plate 6, which is substantially in the shape of an angle and can strike the top and side surfaces of the ridge at the same time.

That is, this ridge beating board 6 is
As shown in the figure, side plates 6 are placed on both sides of the ridge beating surface 6a.
b and 6c, and a bearing box 6d is formed in the center of these. This box 6d is provided with a partition plate 6d-1 at an intermediate position, and a shaft hole 6d-2 is formed in this partition plate. The piston rod 3b is loosely fitted into this shaft hole, and its tip is rotatably supported by the bearing box 6d, so that the ridge beating plate 6 is formed to be able to freely deviate at an angle relative to the piston rod 3b.
Between the piston rod 3b and the bearing box 6d in the rotating direction, cushioning materials 6e and 6'e made of rubber and having a semicircular cross section are interposed, and the ridge beating plate 6 rotates with the ridge beating operation. It is designed to reduce the impact when doing so. In addition, the front side plate 6
b is formed high to prevent the soil from collapsing toward the ridge-beating board side when the rotor R hammers the heaped soil. Further, the lower part of the partition plate 6d-1 of the bearing box 6d is open in the left-right direction in the drawing. 6f, 6f... are reinforcing ribs.

A ridge board with such a structure is integrally molded with fiber-reinforced resin, and this fiber-reinforced resin is made of polyolefin resin, glass fiber, carbon fiber, etc.
A combination with a thermoplastic resin such as nylon or polyester or a thermosetting resin such as an epoxy resin can be used. For example, as shown in FIG. 5, a sheet in which long glass fiber mats M and polypropylene sheets P are laminated alternately can be melt-molded. An example of this is the product name ``Azudel'' sold in the United States, which is mainly used as a structural material to reduce the weight of automobiles, and sold in Japan under the product name X Sheet (Idemitsu Petrochemical Co., Ltd., Nippon Sheet Glass Co., Ltd.). An example is what is sold as. It is also possible to mold a mixture of the resin and the fiber. In addition, it is also possible to improve soil release by using a mold release agent such as silicone.
Additionally, additives used for other structural members such as fillers and colorants can also be used in combination.

In this way, the ridge beating plate 6 is swung together with the piston device 3, and is formed to be able to move forward and backward as well as freely deflect the angle. A pair of left and right fixing shafts 9 and 10 are provided on a mounting plate 8 supported by a horizontal position adjustment plate 7 which is movably supported by a bolt protruding from the machine frame 1 and can be fixed at a desired position with a nut. ,
The support frame 4 and the slider 11 integrally welded at the center thereof are slidably inserted into these shafts,
Further, a screw hole is formed in the middle of the slider 11, and a screw rod 12 is screwed into the slider 11. The upper part of the screw rod is inserted into a screw support plate 8a provided at the upper end of the mounting plate 8, and is rotatably supported by the support plate.

The slider 11 is provided with a slot opening toward the support frame 4, which is opened and closed by a threaded rod to tighten and release the shafts 9 and 10.

Note that 13 is a tail wheel that runs along the wall of the depression left by the rotor R.

Next, the operation of this embodiment will be explained.

First, the ridge leveling machine A is attached to a tractor T, enters a rice field, and drives the power output shaft g to operate the rotor R and the ridge beating plate 6. Then, the height of the entire ridge adjustment machine is adjusted so that the rotating blades of the rotor R can penetrate into the surface soil of the rice field. When the tractor T is moved parallel to the ridge in this state, the rotating blades of the rotor R dig up the surface soil of the field and the sides of the ridge, send this soil to the tip side, and this soil moves up and down the vertical moving plate 1'a. It is blocked and enhanced by The soil thus piled up is brought into a state where it is pounded and compacted by the ridge pounding plate 6 which vibrates repeatedly.

At this time, since the weight of the ridge beating plate 6 is about 3.5 kg, unlike the conventional 8 kg ridge beating plate, it can move well following the forward and backward movements of the piston device 3. Therefore, its operating speed can be increased. This makes it possible to improve the speed of the ridge adjustment work.

In the above description, the surface of the ridge beating board 6 was made of fiber-reinforced resin fabric, but as shown in FIG. 6, it may be provided with a leather covering layer 6g. In this case, it is preferable that the skin has a hairy surface. An example is wild cow skin.

In the above example, a piston device was used as the advancing and retracting mechanism, but a general-purpose engine or a flexible shaft used in agricultural machinery etc. is used to take power from the speed reducer and vibrate the vibrating body, which is similar to the ridge beating board described above. A ridge-adjusting plate for vibrating a ridge-formed plate having the shape of can also be made of fiber-reinforced resin in the same manner as above.

Moreover, although the rotor is perpendicular to the ridge in the above example, it may be parallel to the ridge, or it may be something like a plow.

In addition, in the above method, the ridge leveling machine was pulled by a tractor and the power was used to operate the ridge pounding board, but it is also possible to install a prime mover on the ridge leveling machine to make it self-propelled, and use that power to pound the ridge. Of course, the board may be operated.

Effects of the Invention As explained above, according to the present invention, the ridge adjustment board is made of fiber-reinforced resin, so the weight of the ridge adjustment board can be reduced. Thereby, for example, even when the ridge beating board is moved forward and backward by the forward and backward movement mechanism, the followability can be improved. This can increase the speed of forward and backward movement, and can significantly improve the efficiency of ridge preparation work. Also, if the ridge beating board is lightweight like this,
The burden on the operating mechanism can be reduced, and the number of failures can be reduced, which is extremely beneficial for those working in fields where failures cannot be fixed immediately. Furthermore, fiber-reinforced resin molded products cannot rust like iron, so there is no disadvantage in that respect.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of one embodiment of the ridge adjustment machine of the present invention in use, Fig. 2 is a plan view of its ridge beating plate, and Fig. 3
The figure is a rear view, Figure 4 is a cross-sectional view of Figure 2, Figure 5 is a diagram showing the specific structure of the fiber-reinforced resin, and Figure 6 is a diagram showing the specific structure of the fiber-reinforced resin.
The figure corresponds to FIG. 4 of another embodiment. In the figure, T is a tractor, A is a ridge leveling machine, R is a rotor, g is a power output shaft, 1 is a machine frame, 3 is a piston device, and 6 is a ridge beating plate as a ridge leveling plate.

Claims (1)

[Scope of utility model registration request] In a ridge leveling machine having a soil raising means for digging and heaping mud in a machine frame, and a ridge plate for leveling the mud piled up by the earth raising means,
The ridge adjustment machine is characterized in that the ridge adjustment board is molded using fiber-reinforced resin as a main component.