JP6900627B2 - Field leveling machine - Google Patents

Description

The present invention relates to a field leveling machine used for leveling work in a field such as a paddy field, for example.

Conventionally, as this type of field leveling machine, a mounting frame is provided on the traveling machine body so as to be vertically movable by a connecting mechanism, a soil carrier is provided on the mounting frame so as to be tilted backward, and a plow member is provided in a forward-down shape at the bottom of the mounting frame. Those having an arranged structure are known.

Then, the above-mentioned plow member is held in the front-down working position, the traveling machine is moved forward, the soil in a high place in the field scene is scraped off by the plow member, and the scraped soil is put into the soil transport table by the plow member. Guidance for introduction, movement of the traveling machine to a low place in the field, tilting the soil carrier backward at that position, discharging the soil in the soil carrier to a low place in the field scene, and repeating this work in the field The ground leveling work will be done.

Patent No. 4997132

However, in the case of the conventional structure, only one of the plow members is arranged at the lower part of the mounting frame, and it is said that the soil leveling work ability for excavation, movement and discharge of soil is low, and the field has been enlarged in recent years. Therefore, there is an inconvenience that the workability of the ground leveling work in the field may be lowered.

An object of the present invention is to solve these inconveniences. In the present invention, the invention according to claim 1 is provided with a mounting frame movably provided on a traveling machine body by a connecting mechanism, and the mounting frame is provided with a mounting frame. The soil carrier is provided so as to be tilted backward, the first plow member is arranged in a forward-down shape at the lower part of the mounting frame, and the soil introduction port portion of the soil carrier is located at a position facing the first plow member. Is formed, the first plow member is held in a forward-down shape in a used position, and the first plow member is provided with a first holding and retreating mechanism capable of jumping up and retreating from the used position to an unused position. At least one second plow member is arranged in a downward-sloping manner at the lower part of the soil carrier, and a soil introduction port is formed at a position facing the second plow member at the lower part of the soil carrier. A lid plate that can open and close the soil introduction port is arranged, the second plow member is held in a forward descending use position, and the second plow member jumps up from the use position to the non-use position. A second holding and evacuating mechanism that can be evacuated is provided, one first plow member on the mounting frame side is arranged at the lower part of the mounting frame, and the second plow member on the soil carrier side is the soil carrier. A total of two pieces are arranged at the lower left and right positions of the above, and the second plow member on the soil carrier side is positioned at the rear position in the forward direction of the traveling machine body of the first plow member on the mounting frame side. It is a field leveling machine characterized in that a total of two are arranged one by one at the lower left and right positions of the transport table.

As described above, in the invention according to claim 1, the present invention is the first plow member by holding the first plow member in the mounting frame in a front-down shape by the first holding and retracting mechanism. The soil can be introduced onto the soil carrier through the soil introduction port to level the field, and the second plow member is held in the soil carrier in a downward-sloping manner by the second holding and retracting mechanism. By doing so, the soil can be introduced onto the soil carrier through the soil introduction port by the second plow member to perform the ground leveling work in the field, and the soil introduction port can be opened and closed by the lid plate, and the mounting frame can be used. The presence of a plurality of plow members composed of a first plow member arranged in the soil carrier and a second plow member arranged in the soil carrier can enhance the ground leveling work ability of soil cutting, moving and discharging. It is possible to cope with the recent increase in the scale of the field, the workability of the ground leveling work of the field can be improved, and the first plow is provided by the first holding and evacuating mechanism and the second holding and evacuating mechanism. A member or a second plow member can be selected to jump up and evacuate to a forward-sloping used position or a non-use position, and the first plow member and the second plow member and the second plow member can be evacuated according to the ground leveling conditions such as the size of the field. The plow member can be selectively arranged, the flexibility of use can be improved, and one first plow member on the mounting frame side is arranged at the lower part of the mounting frame, and the soil carrier is provided. A total of two second plow members on the side are arranged at the lower left and right positions of the soil carrier, and the second plow member on the soil carrier side is the traveling of the first plow member on the mounting frame side. Since a total of two are arranged at the lower left and right positions of the soil carrier in the forward position of the aircraft , the structure can be simplified, and the traction capacity of the traveling aircraft and the size of the soil carrier can be simplified. It is possible to improve the workability of the ground leveling work.

It is an overall side view of the embodiment of the present invention. It is a partially enlarged side view of the embodiment of the present invention. It is a partial plan sectional view of the embodiment of this invention. It is a partial perspective view of the embodiment of the present invention. It is a partially enlarged side sectional view of the Example of Embodiment of this invention. It is a partially enlarged plan sectional view of the Example of Embodiment of this invention. It is a partially enlarged plan sectional view of the Example of Embodiment of this invention. It is a partially enlarged side sectional view of the use state of the Example of Embodiment of this invention.

1 to 8 show an example of an embodiment of the present invention, in which 1 is a traveling machine, in this case, as shown in FIG. 1, a tractor is used, and a mounting frame 3 is attached to the rear part of the traveling machine 1 by a connecting mechanism 2. Are connected.

In this case, as shown in FIGS. 1 and 2, the connecting mechanism 2 includes a lower link 4 projecting from the lower left and right side portions of the traveling machine body 1 and a swing arm 5 projecting from the upper left and right side portions of the traveling machine body 1. The suspension link 6 that connects the swing arm 5 and the middle portion of the lower link 4 and the upper link 7 that protrudes from the upper part of the traveling machine body 1 are composed of the tip portion of the lower link 4 and the upper link 7. The tip portion of the above is connected to the mounting frame 3 by connecting pins 8, 8, and 8, and the mounting frame 3 is configured to be movable up and down by a swinging arm 5 that swings hydraulically.

Reference numeral 9 is a first plow member, and 10 is a first holding and retracting mechanism. In this case, as shown in FIGS. 2, 3, 4, 5, 6, and 8, the mounting frame 3 is mounted on the left and right sides. The vertical rods 3a and 3a and the horizontal rods 3b and 3b form the side surface L shape and the rear surface square frame shape, and the bearing portion 11a of the mounting rail 11 having a triangular cross section is placed between the left and right vertical rods 3a and 3a of the mounting frame 3. The first plow member 9 is mounted in a forward-down shape at the center of the mounting rail 11 by swingably pivoting with the pins 12 and 12 on both sides, and the locking pieces 13 are mounted on the left and right sides of the back surface of the first plow member 9. 13 is projected, a stopper rail 14 capable of contacting the rear portion of the locking pieces 13 and 13 is provided on the lower surface of the horizontal rod 3b of the mounting frame 3, and a engaging piece 10a is provided on the side of the mounting rail 11. Attached, a locking pin 10b is provided on the vertical rod 3a so as to be retractable by a spring member 10c, and the first plow member 9 is pulled up and rotated around the pins 12 and 12, and the plow member 9 is in a substantially vertical state. At that time, the locking pin 10b is pulled against the spring member 10c, and the locking pin 10b is fitted into the engaging / disengaging hole portion 10d of the engaging / disengaging piece 10a by the spring pressure of the spring member 10c. The member 9 is held in the front-down shape of the used position a, and is configured to be able to jump up and evacuate from the used position a to the unused position b in a substantially vertical state during non-plow work.

Reference numeral 15 denotes a soil carrier, and as shown in FIGS. 4, 5, and 6, the soil carrier 15 has a pair of left and right side plates 17 and 17, a front plate 18, and a rear plate 19 on four sides of a rectangular bottom plate 16. It is formed upright, and the soil introduction port 20 is formed at a position facing the plow member 9 of the front plate 18.

In this case, as shown in FIGS. 3, 4, and 6, two L-shaped reinforcing rods 21 and 21 are fixed to the outside of the front plate 18 and the bottom plate 16 of the soil carrier 15, and the reinforcing rods are fixed only to the bottom plate 16. 22 and 22 are fixed at intervals, and other reinforcing rods 23 and 23 are fixed to the left and right sides of the bottom plate 16, and the horizontal rod 3b of the mounting frame 3 is arranged between the reinforcing rods 21 and 22 to be horizontal. The fulcrum shaft 24 is inserted into the rod 3b and the reinforcing rods 21 and 22, and the soil carrier 15 is attached so as to be tilted backward about the fulcrum shaft 24.

Reference numeral 25 denotes a guide member, which is arranged and fixed between the left and right reinforcing rods 21 and 21 at the lower part of the soil introduction port 20 as shown in FIGS. 4, 6, and 8, and the inclination of the first plow member 9 is increased. A guide surface 25a that matches the angle is formed.

Reference numeral 26 denotes a locking mechanism. As shown in FIG. 2, the locking mechanism 26 pivotally attaches a hook-shaped locking arm 27 to the horizontal rod 3c at the upper part of the mounting frame 3 by a shaft 27b, and handles the locking arm 27. 27a is projected, a locking portion 28 is formed on the upper portion of the transport base 15, the locking arm 27 and the locking portion 28 are engaged with each other, and the engaged state is maintained by the spring member 29.

Reference numeral 30 denotes a second plow member, and 31 is a second holding and retracting mechanism. In this case, as shown in FIGS. 3, 5, 7, and 8, the reinforcing rods 22 and 22 and the reinforcing rods 23 and 23 are used. Reinforcing bars 32 and 32 are erected between the two, and the bearing portion 33a of the mounting bar 33 having a triangular cross section is connected between the reinforcing bars 22 and 22 and the reinforcing bars 23 and 23 by pins 34 and 34 on both the left and right sides. It is pivotally attached so as to be swingable, and the second plow member 30 is mounted in a forward-down shape at the center of the mounting rail 33, and reinforcing plates 35 and 35 having a U-shaped cross section are projected on both left and right sides of the back surface of the second plow member 30. A stopper rail 36 that can come into contact with the mounting rail 33 is provided between the reinforcing rods 22 and 22 and the reinforcing rods 23 and 23, and a engagement piece 31a is attached to the side of the mounting rail 33 to reinforce the reinforcement. A locking pin 31b is provided on the crosspiece 23 so as to be retractable by a spring member 31c, the second plow member 30 is pulled up and rotated around the pins 34 and 34, and the second plow member is set to the unused position d. A locking mechanism D composed of a locking pin 31b that can be repelled by jumping and a engaging / disengaging hole portion 31d is provided, and when the second plow member 30 is in a substantially horizontal state, the locking pin 31b opposes the spring member 31c. Is fitted into the engagement / disengagement hole 31d of the engagement / disengagement piece 31a by the spring pressure of the spring member 31c, and the second plow member 30 on the soil carrier 15 side is the first on the mounting frame 3 side. A total of two plow members 9 are arranged at the lower left and right positions of the soil carrier 15 at the rear position in the forward direction of the traveling machine 1 of the plow member 9, and the second plow member 30 is moved forward during the plow work. It is configured to be held in the down-shaped used position c and to be able to jump up and evacuate from the used position c to the unused position d in a substantially horizontal state during non-plow work.

Reference numeral 37 denotes a lid plate, and as shown in FIG. 5, soil introduction ports 38 and 38 are formed on the bottom plate 16 of the soil carrier 15 at positions facing the two left and right second plow members 30 and 30, and the bottom plate. The front part of the lid plate 37 is fixed to the edge of the soil introduction port 38 of 16, the lid plate 37 is attached upright and laid down by the hinge part 37a, and the lid plate 37 is laid down by the hinge part 37a to the rear part of the lid plate 37. The soil introduction port 38 is closed by abutting the reinforcing bar 32, and as shown in FIG. 8, the lid plate 37 is configured to stand up at the hinge portion 37a to open the soil introduction port 38.

Since this embodiment has the above configuration, as shown in FIGS. 1 and 2, the first plow member 9 is held in a forward-down shape and the traveling machine body 1 travels forward, and the soil W in a high place of the field scene M is carried out. Is scraped off by the first plow member 9, and the scraped soil is introduced into the soil carrier 15 through the soil introduction port 20 by the first plow member 9, and the traveling machine body 1 is moved to a place where the field M is low. Then, at that position, the operator artificially releases the locking mechanism 26, and as shown in the imaginary line position in FIG. 2, the soil carrier 15 is tilted backward by its own weight around the fulcrum shaft 24, and the inside of the soil carrier 15 is tilted. Soil is discharged to a place where the field scene M is low, and by repeating this work, the ground leveling work of the field M is performed.

At this time, as shown in FIG. 8, the second plow member 30 is held in a downward-sloping shape to advance the traveling machine body 1, and the second plow member 30 makes the soil W in a high place of the field scene M a second. The scraped soil is scraped off by the plow member 30, and the scraped soil is introduced into the soil carrier 15 through the soil introduction port 38 by the second plow member 30, and the traveling machine body 1 is moved to a low place in the field M and its position. The worker artificially releases the locking mechanism 26, tilts the soil carrier 15 backward by its own weight around the fulcrum axis 24 as shown in the imaginary line position in FIG. 2, and the soil in the soil carrier 15 is used in the field. By discharging to a place where the surface M is low and repeating this work, the ground leveling work of the field M is performed.

Therefore, by holding the first plow member 9 and the second plow member 30 in a downward-sloping manner by the first holding and retreating mechanism 10 and the second holding and retreating mechanism 31, the first and second plow members 9 and. The field leveling work can be performed by 30 and the presence of a plurality of plow members 9 and 30 can enhance the ground leveling work capacity of soil cutting, moving and discharging, and the field has become larger in recent years. It is possible to improve the workability of the ground leveling work in the field, and the first holding and evacuating mechanism 10 and the second holding and evacuating mechanism 31 allow the first plow member 9 or the second plow. The member 30 can be selected and evacuated to the front-down-shaped used positions a and c or the unused positions b and d, and the first plow member 9 and the first plow member 9 and the first plow member 9 and the first plow member can be evacuated according to the ground leveling conditions such as the size of the field. The plow member 30 of 2 can be selectively arranged, and the flexibility of use can be improved.

In this case, as shown in FIGS. 3 and 5, one first plow member 9 on the mounting frame 3 side is arranged at the lower part of the mounting frame 3, and the second plow member 30 on the soil carrier 15 side is arranged. Is arranged at the rear position in the forward direction of the traveling machine body 1 of the first plow member 9 on the mounting frame 3 side, and one at the lower left and right positions of the soil carrier 15, so that the structure is simplified. It is possible to cope with the traction capacity of the traveling machine 1 and the size of the soil carrier 15, and the workability of the ground leveling work can be improved accordingly.

The present invention is not limited to that of the above embodiment, and the quantity, arrangement position and structure of the first plow member 9 and the quantity, arrangement position and structure of the second plow member 30 are appropriate structures and the like. Designed with appropriate changes.

As described above, the intended purpose can be sufficiently achieved.

a Used position b Unused position c Used position d Unused position 1 Traveling machine 2 Connecting mechanism 3 Mounting frame 9 1st plow member 10 1st holding / evacuation mechanism 15 Soil carrier 20 Soil introduction port 30 2nd plow Member 31 Second holding and retracting mechanism 37 Lid plate 38 Soil introduction port

Claims (1)

A mounting frame is provided on the traveling machine body so as to be vertically movable by a connecting mechanism, a soil carrier is provided on the mounting frame so as to be tilted backward, and a first plow member is arranged in a front-down shape under the mounting frame. A soil introduction port is formed at a position facing the first plow member of the soil carrier, the first plow member is held in a front-down-shaped use position, and the first plow member is held at the use position. A first holding and evacuating mechanism capable of jumping up and evacuating from the unused position is provided, and at least one second plow member is arranged in a downward-sloping manner under the soil carrier, and the lower part of the soil carrier is provided. A soil introduction port is formed at a position facing the second plow member, a lid plate capable of opening and closing the soil introduction port is arranged, and the second plow member is held at a forward-downward use position. At the same time, a second holding and retreating mechanism capable of jumping and retreating the second plow member from the used position to the non-used position is provided, and one first plow member on the mounting frame side is provided at the lower part of the mounting frame. A total of two second plow members on the soil carrier side are arranged at the lower left and right positions of the soil carrier, and the second plow member on the soil carrier side is on the mounting frame side. A field leveling machine characterized in that a total of two are arranged at the lower left and right positions of the soil carrier at a position rearward in the forward direction of the traveling machine body of the first plow member.

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