JPH0530561Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention relates to a ridge leveling machine, and in particular, to a ridge leveling machine that digs up muddy soil, mounds it up, and prepares the mounded soil. This invention relates to a mechanism and its vertical position adjustment mechanism.

Conventional technology Ridges are built in rice fields to store water by weiring them, to create boundaries 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 have a stable height without changing 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 hit it with a hoe. This method is the best method because the clay has an oriented structure, so it hardens and hardens when it dries.However, if you pile it too thickly at once, it will cause large cracks when it dries, causing water leakage. It took time and effort to make adjustments while proceeding with the work, and there were problems with labor saving in agricultural work. Therefore, a ridge leveling machine was developed that mechanized the above-mentioned method of mounding the mixed soil with a hoe, but since this machine kneads soil and mud, it can only be used when there is a lot of water in the field. The drawback is that the period of use is limited because it only lasts for a short period of time in early spring, and in an attempt to improve this, a system was developed that used a pump to replenish water, but it was labor-intensive and the operation of the machine was cumbersome. It was hot.

Next, a ridge adjustment machine was developed that improved these shortcomings and could be used throughout spring and autumn. This involves digging up the soil with a rotor, mounding it up, and then pounding the mounded soil with a roughly square-shaped pounding board. The pounding 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. Therefore, the forward and backward movement of the rod is constrained by the deformation movement of the parallelogram by the two links, so that the rod operates in a fixed direction. As a result, a large amount of pounding pressure is applied to the top surface of the ridge, and there is insufficient pounding pressure to the side surfaces, so it is necessary to use an auxiliary pounding plate, and there are many mechanically connected parts, which are prone to failure. Therefore, as an improvement on 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. This was disclosed in a previous application. This ridge leveling machine can thoroughly pound the top and side surfaces of the ridge at the same time. However, it requires hydraulic equipment such as a hydraulic pump and piston device, which increases the cost, and when pounding the soil with a ridge pounding board with a large stroke of 140 mm, there is a problem of impact on the support part, and furthermore, there is a problem of impact on the support part. There were still problems in that it was not easy to perform the above-mentioned high-speed operation.

Problems to be solved by the invention As mentioned above, there was room for improvement in the ridge adjustment mechanism of the conventional ridge adjustment machine.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides an earth-raising rotor or plow that excavates mud into a machine frame and heaps it up in the old ridge, and a mud-raising rotor or plow that is piled up by this earth-raising rotor or plow. A ridge alignment machine having a ridge alignment plate for aligning the ridges, the ridge alignment machine having a vibration mechanism provided on the ridge alignment plate to vibrate the ridge alignment plate, and a vertical position adjustment mechanism for adjusting the vertical position of the ridge alignment plate and the vibration mechanism. The vertical position adjustment mechanism is slidably fitted into a support body that supports the ridge plate and the vibration mechanism, and a vertical fixed shaft provided on a mounting plate fixed to the rear of the machine frame. The present invention provides a ridge adjustment machine characterized by having a slider supporting the support body, and a screw rod rotatably supported by the mounting plate and screwed into a screw hole formed in the slider.

Effect When the ridge plate is vibrated to vibrate the soil particles,
By performing this high-speed vibration, the structure of the aggregated particles can be made dense. Further, since the slider is movable by a screw rod, and the ridge adjustment plate is supported by the slider via a support, the vertical position of the ridge adjustment plate can be adjusted by operating the screw rod.

Embodiment Next, an embodiment of the present invention will be explained based on FIGS. 1 to 3.

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 the length of the front upper part of the 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 device, it is possible to return to the 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 so that the rotational force of the power transmission shaft is decelerated and redirected 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. As a result, the axis of the rotor R is oriented substantially perpendicular to the direction of travel of the tractor, and its rotation direction 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.

Reference numeral 2 designates a ridge plate, and as shown in FIG. 2, it is a channel member having upright walls on both sides, and a ridge plate main body 2a is formed in an approximately U-shape. The vibrating plate 2b is mounted and fixed at the position. One end of springs 2c, 2c, . Also,
A columnar vibrating body 4a having a semicircular cross section is arranged between the engine 3 and the vibrating plate 2b with its axial direction perpendicular to the ridge at the time of ridge adjustment, and a shaft 4b protruding from both ends of the columnar vibrating body 4a. 4c is rotatably supported by bearing pieces 4d and 4e hanging from the base plate of the engine 3, one of the shafts 4b is extended and a pulley 4f is fixed, and this pulley and the power extraction shaft of the engine 3 are connected to each other. The provided pulley 3a is connected by a transmission body 4g. As a result, the vibrating body 4a rotates, and the ridge plate main body 2a can vibrate due to the sliding of the circumferential surface of the arcuate portion on the vibrated plate 2b and the elastic restoring force of the spirals 2c, 2c, . . . extended thereby. The outer surface of the ridge adjustment board body 2a is covered with a covering material 2d, such as fur, that is easily removed from soil.

As shown in Figures 1 and 2, the above-mentioned ridge board is
The position is adjusted by the vertical position adjustment mechanism,
In this vertical position adjustment mechanism, a substrate to which the engine 3 is attached is attached to a support 5, this support is fixed to an arm 6, and this arm is fixed to a slider 7. This slider 7 is attached to the mounting plate 8
It is movably fitted into fixed shafts 9, 9' which have both ends fixed to the support plate 1, and a threaded hole is provided in the center thereof, into which a threaded rod 10 is screwed.
The slider 7 can be moved up and down by a handle 12 supported by the slider 1 and provided at its tip.

Also, the mounting plate 8 has arms 8d and 8' on both sides thereof.
d is movably fitted into the support rods 13 and 13', and its lower end is supported by a pin, and its upper surface is provided between the nut screwed and rotated on the threaded portion of the support rod. It is held down by coil springs 14, 14'. The support rods 13, 13' are attached to a horizontal position adjusting plate 15 which is attached to the machine frame 1 so as to be movable in the horizontal direction. Note that 16 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, as shown in Figure 1, the ridge leveling machine A is moved to the tractor T.
The machine is installed in the rice field, enters the rice field, and drives the power take-off shaft g to operate the rotor R and the ridge plate 2. Then, the height of the entire ridge leveling machine is adjusted and the position of the ridge leveling plate 2 is adjusted so that the rotating blades of the rotor R can penetrate the side surfaces of the ridge and the surface soil of the rice field.

When the tractor T is moved parallel to the ridge in this state, the rotary blades of the rotor R dig up the side surfaces of the ridge and the surface soil of the field, send this soil to the tip side, and heap the soil on the ridge. The soil thus piled up is compacted by the ridge plate 2 which vibrates repeatedly.
At this time, the ridge plate 2 is vibrated by the vibrating body 4 to which power is directly transmitted from the engine 3, so that it can vibrate at high speed. For example, this vibration speed is
Examples include, but are not limited to, 2000rpm to 3000rpm. When the embankment is vibrated at high speed in this way, the soil particles gather together densely and the soil is compacted. At this time, due to the reaction from the wall of the depression caused by the tail wheel 12, the pressing force of the ridge plate main body 2a against the soil increases, and the soil is compacted even better.

Although a general-purpose engine was used in the above example, a bendable flexible shaft was connected to the gear of the speed reducer that transmitted power to the transmission shaft of the rotor R, and the axis of the vibrating body 4 was connected to the shaft of the vibrating body 4 by the flexible shaft through appropriate connecting means. The vibrating body may be rotated, or the vibrating body may be vibrated by the speed reducer using a combination of a worm, a wheel, a bevel gear, or the like.

In the above example, the rotor was perpendicular to the ridge, but it may also be parallel to the ridge.For example, the rotor may be one that digs only the ridge, or a plurality of rotors, such as one that digs only the soil of the rice field and fills it in the ridge. Of course, it is also possible to use something like a plow instead of a rotor.

In the above method, the ridge leveling machine was pulled by a tractor and its power was used to operate the ridge pounding board, but the ridge leveling machine was equipped with a prime mover to make it self-propelled, and its power was used to operate the ridge pounding board. Of course, it may be allowed to operate.

Effects of the invention As explained above, according to the invention, the ridge plate is vibrated and the embankment is thereby vibrated, so that the soil can be compacted. In particular, by reducing the amplitude of the vibration of the ridge plate and transmitting the power directly to the vibrating body, relatively high-speed vibration is possible, and the soil compaction effect can be increased. In this way, the vibration mechanism can use power directly without going through a hydraulic system, etc., so it is not only cost-effective, but also eliminates problems with the support mechanism of the ridge plate because it does not involve large shocks like when slamming earth into an embankment. Can reduce noise.

In addition, since the slider can be moved up and down using a screw rod to adjust the vertical position of the ridge plate, the ridge plate itself can be fixed with the position adjusted to the optimal position of the rotor, and only the ridge plate can be adjusted. Since the position can be adjusted and the position can be changed according to the height of the ridge, optimal compaction of the embankment of the ridge can be performed. Moreover, since the screw rods are easy to operate, the position of the ridge plate can be easily adjusted during work.

[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 perspective view showing its main parts, and Fig. 3
The figure is an enlarged perspective view of a portion thereof. In the figure, T is a tractor, A is a ridge leveling machine, R is a rotor, g is a power take-off shaft, 1 is a machine frame, 2 is a ridge leveling plate, 3
is an engine, 5 is a support body, 7 is a slider, 9,
9' is a fixed shaft, and 10 is a screw rod.

Claims (1)

[Scope of utility model registration request] In a ridge leveling machine, the machine frame has an earth raising rotor or plow that excavates mud and heaps it up into old ridges, and a ridge leveling plate that adjusts the mud piled up by the earth leveling rotor or plow. It has a vibration mechanism that vibrates the ridge plate, and a vertical position adjustment mechanism that adjusts the vertical positions of the ridge plate and the vibration mechanism, and the vertical position adjustment mechanism includes a support body that supports the ridge plate and the vibration mechanism. , a slider slidably fitted onto a vertical fixed shaft provided on a mounting plate fixed to the rear of the machine frame and supporting the support; and a slider rotatably supported by the mounting plate. A ridge adjustment machine characterized by having a screw rod that is screwed into a screw hole formed in the ridge.