JPH0547536Y2 - - 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 excavates muddy soil, mounds it up, and solidifies the raised soil, the present invention effectively transforms the soil piled up into ridges. It's about something that can be hit.

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 are stable without changing 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 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 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 using a rotor to excavate the soil on one side of the ridge, mounding it up, and then pounding the mounded soil with a roughly square-shaped hammering board.
However, in this ridge adjustment machine, the axis of the rotor is installed in the direction in which the tractor moves, and its rotating blades rotate in a direction perpendicular to the direction in which the tractor moves, removing the soil in the field and part of the sides and top of the ridge. The soil is excavated, lifted along a guide groove covered by a cavity above the rotor, and then dropped from the upper end into the ridges that have been scraped out above, and the soil is pounded and hardened with a pounding board. As a result, there were problems such as soil easily adhering to the guide grooves, and the soil that had been dug up being piled up on the ridges without being crushed and not being properly tamped down. Therefore, the rotor is installed so as to be inclined slightly backward from the direction perpendicular to the ridge, and the spiral blades of the rotor can dig up the soil and send it to the tip side one by one. The ridge leveling machine is rotated in the opposite direction to the direction of movement of the ridge leveling machine so that it can be broken repeatedly, and the soil that is raised by this is pounded and compacted with a nearly curved ridge pounding plate that can move forward and backward using a hydraulic device. developed and disclosed in a previous application.

Problems to be Solved by the Invention However, the angle formed between the top surface of the ridge and the one side surface of the ridge beating plate of this ridge leveling machine remains unchanged, so depending on the condition of the embankment, the top surface of the ridge may On the other hand, there were times when one of the sides was not hit well.
In addition, when rotors are arranged on both sides of a ridge as proposed in a previous application, soil is piled up from both sides into the ridge, and the ridge pounding board has a trapezoidal cross section. Since the angle made with respect to the hitting surface remained unchanged, there was a problem that the left and right sides were not hit well.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides an earth raising means for digging up mud in the machine frame and heaping it up on the old ridge, and adjusting the mud raised by the earth raising means. In a ridge adjustment machine having a ridge adjustment plate, the ridge adjustment plate is composed of a top plate for adjusting the upper surface of the ridge and a side plate for adjusting the side surfaces of the ridge, and the side plate is rotatably provided with respect to the upper surface plate. A forward and backward movement mechanism for moving the top plate back and forth in a reciprocating manner is provided in the machine frame, and an auxiliary cylinder is provided in communication with a main cylinder fixed to the machine frame,
A piston is slidably provided in the main cylinder, and the piston rod is supported by an advancing/retracting body of the advancing/retracting mechanism section, and a piston is slidably provided in the auxiliary cylinder, and the piston rod is connected to the side plate. The present invention provides a ridge adjustment machine with the following characteristics.

Function: The side plate is rotatably provided with respect to the top plate of the ridge leveling plate, and these top and side plates are moved forward and backward, respectively, so that the top plate and side plate can be adjusted to match the condition of the embankment on the top and side surfaces of the ridge. You can adjust the ridges by adjusting the angle of the side panels.
Moreover, both the top plate and the side plate can press the ridge.

Embodiment Next, an embodiment of the present invention will be described based on FIGS. 1 and 2.

In Fig . 1, T is a tractor and A is a ridge straightening machine. The main engine frame 1 is attached to a mounting frame a provided on the rear upper part of the tractor T via links b and c, and is rotatable to rotatable links d and e provided on both sides of the rear lower part of the tractor. Further, the front upper part of the main engine frame 1 and the rear upper center of the tractor are connected by an adjustment link f whose length can be freely adjusted, and the ridge straightening machine A is held at a predetermined angle by the adjustment link f.
can be rotated downward via the mounting frame a rotated by a hydraulic device (not shown), and can be returned to its original position by upward rotation of the mounting frame a by this hydraulic device. It's summery.

The above-mentioned ridge adjustment machine A has a power transmission shaft 2 connected to a power take-off shaft g of a tractor via a universal joint (not shown), and a speed reducer 3 consisting of a combination of a bevel gear.
is connected to the reducer 3, and the power take-off shaft g
A transmission shaft 4 is connected to the transmission shaft 4, which is inclined 7 degrees rearward with respect to the traveling direction of the tractor from a direction perpendicular to the horizontal plane, and which is inclined 20 degrees downward in the vertical direction with respect to the power take-off shaft g. 4 is attached with a right rotor 5, whereby the rotational force of the power transmission shaft 2 is decelerated and direction-changed by the reduction gear 3 to the transmission shaft 4, and the rotation direction thereof corresponds to the traveling direction of the tractor. The shaft of the right rotor 5 is tilted in the same way as the transmission shaft, and the direction of rotation is opposite to the direction of rotation of the tractor. . Rotating blades 5a, 5a, . . . are spirally attached to the right rotor 5 so that the envelope surface of the tip forms a truncated conical surface so that soil from the rice field can be dug up and sent to the tip one after another during ridge preparation. It is being A soil cover plate 6 is provided on the base end side of the right rotor 5, and a rotatable cover 7 is further provided to cover the rotary blade and whose tip reaches the center of the ridge during ridge adjustment.

8 is the auxiliary frame, which is the main frame 1
The intermediate transmission shaft 11 is supported by support pieces 9, 9' on the main frame 1 so that its position can be adjusted freely, and a bearing piece 10 is provided on the upper surface of the intermediate transmission shaft 11, which is rotatably supported and passes through the intermediate transmission shaft 11. One end of the intermediate transmission shaft 11 passes through the main frame 1 and is connected to the transmission shaft 4 by a transmission body 12, and the other end is connected to a left rotor transmission shaft 13 by a transmission body 14. The left rotor 15 is connected to the transmission shaft 13, which is inclined 7 degrees backward from the direction perpendicular to the ridge and 20 degrees vertically from the horizontal direction, like the right rotor 5. The left rotor 15 is also provided with rotating blades 15a, 15a... in a spiral shape and rotates in the opposite direction to the direction of rotation corresponding to the traveling direction of the tractor. The left rotor 1
The earth plate 16 and the cover 17 are also provided in the earth plate 5 in the same manner as the earth plate 6 and the cover 7.

The ridge adjustment machine A also includes a pump 19, such as a water gun, which is connected to the speed reducer 3 via a crank mechanism 18.
A flexible tube 20 made of rubber or the like is connected to this pump via a conduit, and a piston device 21 (advancing/retracting mechanism section) is connected to this pump.

As shown in FIG. 2, this piston device 21 has a sleeve 21a with a square cross section and a cylinder 21b.
Piston rod 2 of piston 21c inserted into
It is provided so that it can move forward and backward together with 1d (advancing/retreating body),
A spring 21f is provided between the sleeve 21a and the guide body 21e, which slides and guides the inner surface of the sleeve, which is formed by expanding the end of the closing plate of the cylinder 21b into a square shape. The spring 21f is compressed by the sleeve 21a pushed down together with the sleeve 21d, but when the hydraulic pressure is released, its elastic force acts to push the spring 21a upward.

As shown in FIG. 1, this piston device 21 is supported by a support frame 22 so as to be rotatable in the front and rear directions.
Moreover, the ridge beating plate return mechanism 23 limits its rotation range so that it can return to its original position.

A square cylindrical rod 21g is attached to the bottom plate of the sleeve 21a to which the piston rod 21d is attached.
A ridge striking board 24 (ridge leveling board) is attached through the ridge. That is, as shown in FIGS. 1 and 2, this ridge beating board 24 has a top plate 24a and left and right side plates 24 shaped to match the shape of the ridge, which has a trapezoidal cross section.
It has a striking surface consisting of b, 24c, and an upper surface plate 24a.
The rod 21g is fitted into a bearing box 24d provided above, and a pair of elastic materials such as rubber having a semicircular cross section are interposed between them, so that the bearing box can freely rotate around this piston rod. It is pivoted so that In addition, the left and right side plates 24b, 24c
is formed of a channel member, and the bearing box 24d
It is rotatably provided on the bottom plate of the bearing box 24d by hinges 24e and 24f, respectively, and one end thereof is rotated so as to overlap the side wall of the bearing box 24d. Further, the upper plate 24a is attached to the bearing box 24d via hinges 24e and 24f. The top plate and left and right side plates are covered with 24g of covering material, such as a blanket, which has good soil removal properties.

As shown in FIG. 2, these left and right side plates 24b and 24c are provided with a piston device 25 for left and right side plates,
26 are provided respectively. In the left side plate piston device 25, an auxiliary cylinder 25b having a smaller diameter is formed in communication with a main cylinder 25a, which is fixed via an intermediate member to a support member that rotatably supports the piston device on the support frame 22. , a piston 25c is slidably fitted into the main cylinder 25a, a piston 25d is fitted into the auxiliary cylinder 25b, and the respective piston rods 25e, 25f are fitted.
is connected to the sleeve 21a and the left side plate 24b. Further, an inverted conical valve cylinder 25a-1 is attached to the porous plate 25 at the bottom of the main cylinder 25a.
A-2 is provided, and a light valve ball 25a-3, such as a ping-pong ball, is provided thereto, and this valve ball can communicate with or shut off the outside air. Similarly, in the right side plate piston device 26, an auxiliary cylinder 26b is formed in communication with the main cylinder 26a, and pistons 26c and 26d are slidably fitted into the main cylinder 26a and the auxiliary cylinder 26b, respectively, and the respective piston rods 26e and 26
f is connected to the sleeve 21a and the right side plate 24c. In addition, the same valve cylinder 26a-
1. It has a porous plate 26a-2 and a valve ball 26a-3. In addition, the piston rods 25e, 2 of the main cylinders 25a, 26a and the auxiliary cylinders 25b, 26b
It is desirable that the 6e side be allowed to communicate with the outside air.

In order to adjust the height of the ridge beating plate 24 to the height of the ridge during ridge adjustment, the slider 27 integrally attached to the support frame 22 is moved along the fixed axis to the screw rod 2.
This is done by moving up and down with 8. These vertical movement mechanisms such as sliders are attached to a mounting plate 29, and this mounting plate is attached to a horizontal position adjustment plate 30.

Note that 31 is a tail wheel that runs along the wall of the depression dug by the right rotor 5, and provides a reaction force to the travel guide and the ridge beating plate.

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 robot enters the rice field and drives the power extraction shaft g to operate the right rotor 5 and the left rotor 15, as well as operate the ridge beating plate 24. Then, the height of the entire ridge leveling machine is adjusted so that the rotating blades of the left and right rotors 5, 15 can penetrate into the surface soil of the rice field and the sides of the ridge, and the position of the ridge beating plate 24 is also adjusted.

When the tractor T is moved parallel to the ridge in this state, each of the rotating blades 5a, 5a..., 15a,
15a... excavates the surface soil of the rice field and the sides of the ridges. The excavated soil is then sent to the tip side and further broken down by the subsequent rotating blades and piled up in the ridge. The soil piled up in this manner is pounded and compacted by the ridge pounding plate 24 which repeatedly vibrates, thereby creating a new ridge.

At this time, the sleeve 21a moves back and forth due to the operation of the piston device 21, and the ridge beating plate 24 also moves back and forth.
At this time, the piston rods 25e and 25f of the left side plate piston device 25 and the piston rods 26e and 26f of the right side plate piston device 26 are also moved forward and backward together with the sleeve 21a, and the respective valve balls 25
Since a-3 and 26a-3 are easy to move due to their lightness, they block outside air when compressing air, and suck in outside air when expanding. When the ridge beating plate 24 descends, the pistons 25c and 25 in the main cylinder 25a and the auxiliary cylinder 25b, the main cylinder 26a and the auxiliary cylinder 26b, respectively.
The air pressure corresponding to the difference in volume corresponding to the movement distance between the main cylinder 25a and the auxiliary cylinder 25b and the main cylinder 26a and the auxiliary cylinder 26b of the pistons 25d, 26d and 26d is
6d, so that when the top plate 24a hits the embankment on the top of the ridge, the left and right side plates 24b, 2
4c can also press against the embankments on the sides of the ridge. On the other hand, when the ridge beating plate 24 rises, the outside air flows in with the valve balls 25a-3 and 26a-3 floating, so the pistons 25c and 26c and the piston 25
The movement of d and 26d is not hindered. Note that the main cylinders 25a and 26a may be provided with pressure relief valves for use when the pressure exceeds a certain level.

In the above, the left and right side plate piston devices 25 and 26 compressed and sucked air, but as shown in FIG.
The oil tank 26h and the valve cylinder 26a-1 may be connected to each other through the flexible pipe 26g, and oil pressure may be applied to the piston 26d using oil instead of air. The same applies to the left side plate piston device 25.

In the above case, there was one rotor on each side, but there were two rotors on each side, one for digging and raising only the tip of the ridge, and one for digging and raising only the soil of the rice field, and the base end of the ridge was the old one. The ridges may be left as they are so as not to impair the strength of the ridges, the rotor may be parallel to the ridges, or even a plow may be used instead of a rotor. In addition, a tail wheel similar to the tail wheel 31 described above is attached to the auxiliary machine frame so that the rotor can run in contact with the depression dug up by the rotor and its wall surface, supporting the auxiliary machine frame and protecting it from the wall surface. A reaction force may be applied to the ridge-beating board.

It is also possible, of course, to mount a prime mover on the ridge leveling machine to make it self-propelled, and use the power to operate the ridge beating board in the same manner as described above.

Effects of the invention As explained above, according to the invention, the side plate is rotatably provided with respect to the top plate of the ridge plate, the top plate is moved back and forth by the advancing and retreating mechanism, and the side plate is also moved back and forth. Therefore, it is possible to apply pressing pressure for ridge alignment to both the top and side plates, and the ridge can be leveled at an angle between the top and side plates that matches the condition of the embankment on the top and side surfaces of the ridge. , well-compacted ridges are formed.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a state in which a ridger according to one embodiment of the present invention is in use, Fig. 2 is a cross-sectional view of the lower part, and Fig. 3 is a cross-sectional view showing a part of another embodiment. In the drawings, A is a ridger, 1 is a main frame, 5 is a right rotor, 15 is a left rotor, 21 is a piston device, 2 is a piston device,
4 is a ridge-beating plate as a ridge-leveling plate, 24a is an upper plate,
24b is a left side plate, 24c is a right side plate, 25, 2
6 is a piston device for the side plate.

Claims (1)

[Scope of utility model registration request] In a ridge leveling machine, the ridge leveling machine has a soil raising means for digging up mud into the machine frame and heaping it up into old ridges, and a ridge leveling plate for adjusting the mud piled up by the earth leveling means, and the ridge leveling plate is used for leveling the upper surface of the ridge. The machine frame includes a face plate and a side plate that adjusts the sides of the ridge, the side plate is rotatably provided with respect to the top plate, and an advancing/retracting mechanism part for moving the top plate back and forth is provided on the machine frame. An auxiliary cylinder is provided in communication with a fixed main cylinder, a piston is slidably provided on the main cylinder, the piston rod is supported by a reciprocating body of the reciprocating mechanism, and the piston is slidable on the auxiliary cylinder. A ridge straightening machine characterized in that the piston rod is connected to the side plate.