JPS601525Y2 - Ridge surface work machine - Google Patents

Description

[Detailed description of the invention] The present invention relates to a ridge surface working machine, and in particular, to a so-called traction type ridge surface working machine that is attached to a moving work vehicle such as a tractor, the present invention is concerned with a ridge surface working machine that is capable of optimizing the amount of ridge scraping or ridge coating, and The purpose is to ensure stable work and provide safety functions for the work equipment.

During rice cultivation work, in order to prevent water leakage and ensure water retention,
Furrow scraping and ridge painting work is required.

These operations are usually carried out exclusively by hand, which is extremely labor-intensive and inefficient, so there has recently been a demand for their mechanization.

In order to achieve the above-mentioned mechanization, it is necessary to take into consideration the unevenness of the furrows due to the complex terrain, which is a peculiarity of Japan's agricultural form, and the fact that when attached to a moving work vehicle such as a tractor, the work equipment is far away from the work vehicle. Take this into consideration, as maneuverability will deteriorate and it will be difficult to work uniformly and accurately.Also, if there are hard parts such as gravel or stones buried in the furrows, this will lead to damage to the working parts and work equipment. Indispensable conditional issues include ensuring a constant amount of work regardless of the shape of the furrow and soil properties.

The purpose of the present invention is to provide a ridge surface working machine that solves all of the above problems, and in order to achieve this purpose, a ridge surface working machine having a working part on the - side is connected to a traveling work vehicle so that it can be raised and lowered. The machine is equipped with a bullet that biases the entire working machine including the working part against the ridge, and the machine frame of the working machine is equipped with a holder arranged in the front and back direction, which is swingable around a vertical axis at the base. A gauge body is provided at the tip of the holder via a vertical movement adjustment mechanism, and a spring is interposed between the machine frame and the holder to prevent the holder from swinging when the work equipment is in the raised position. It is something.

Hereinafter, a specific example of the present invention will be described in detail with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a traveling work vehicle, and the figure illustrates a wheeled passenger tractor.

Reference numeral 2 denotes a pair of left and right rear wheels, and it is preferable that an auxiliary traveling device 3 be attached to the outer peripheral surface of each wheel 2.

Reference numeral 4 denotes a work equipment lifting device, which is composed of a hydraulic device mounted on the rear upper surface of a transmission case that constitutes the vehicle body 5, and has a pair of left and right lift arms 6.

Note that S is a sheet.

Reference numeral 7 denotes a ridge surface work machine, which is connected to the work vehicle 1 by a three-point link 10 consisting of a top link 8 in the center and a pair of lower links 9 on the left and right, and connects the middle of each lower link 9 and each lift arm 6. By connecting them with lift rods 11, the entire working machine 7 can be raised and lowered with respect to the working vehicle 1.

The work machine 7 includes a machine frame 12, a working part 13 provided at one end of the machine frame 12, a transmission part 14 for transmitting power to the work body of the working part 13, and a transmission part 14 provided in front of the working part 13. It mainly consists of a ground gauge body 15.

The machine frame 12 has a cylindrical structure, and includes a pair of left and right brackets 17 in front of the end opposite to the working part 13. A mast 18 is erected in the center between each bracket 17. A lower link 9 and a top link 8 are pivotally connected to the mast 18.

A first transmission case 19 is provided at one end of the machine frame 12, and a second transmission case 20 is provided at the other end.
Built-in transmission gears 19a and 20a are interlocked and connected by a transmission shaft.

The working part 13 has a cylindrical casing 21 removably attached to the lower surface of the second transmission case 20 of the machine frame 12, and a working body 22 is built in the casing 21. A work body 22 can be inserted into and removed from the output shaft of the transmission mechanism.

When the work body 22 is used for furrow scraping work, a work shaft with a large number of claws or blades attached is used, and when used for furrow painting work, a work body with a screw body attached to the work shaft is used. The screw body acts as a screw feeder to knead and lift the soil by rotating around its axis.

Further, the casing 21 is in an inclined position along the inclined elevational surface A1 of the furrow A as shown in FIG. 2, and the cylinder side portion facing the inclined elevational surface A is an open portion as shown by the reference numeral 21a.

The shaft serving as the transmission part 14 drives the work body 22 around the vertical axis by transmitting power from the tractor PTO shaft to the transmission gear 19a of the first transmission case 19, but such a gear shaft may be used instead. A wrapping body such as a belt or Che 7 can be used.

Further, the ground gauge body 15 is provided with a front-projecting bracket 23 at the middle of the side end of the machine frame 12, and is provided with this bracket 23 as a support.

As shown in FIG. 3, a cylindrical body 24 is fixed to the bracket 23, and a gauge support shaft 25 is configured with a pin 26 and a pin hole 27 so that it can be inserted into and removed from the cylindrical body 24. The gauge body 15 is mounted on the end of the gauge via a bearing 28.

Although the gauge body 15 has a truncated conical shape,
This may be a spatula shape, or may be fixed without rotating.

Reference numeral 29 denotes an elastic device such as a spring, which connects a part of the vehicle body 5, such as the rear axle surface, a hit box provided at the lower center of the vehicle body 5, or a support shaft of a lower link, to the vehicle body 5 side, and the three-point link 10.
It is suspended between both or one of the left and right lower links 9, and urges the entire working machine 7, including the working part 12 and the gauge body 15, against the ridge A.

A support bracket 33 is fixed to one of the pair of left and right brackets 17 of the frame 12 of the work machine 7, and a holder support 35 is mounted in a vertical position on the support mounting portion 34 of the bracket 33. It is attached so that it can be moved in any direction and is detachable.

36 is a grounding body holder, which has a cylindrical part 37 at one end,
This cylindrical portion 37 is rotatably and removably fitted to the support 35, the lower surface is supported by a holder 38 which is fitted and fixed to the support 35, and the upper surface is removably fitted to the support 35. The collar 39 is in contact with the holder 36.
is swingable about a vertical axis and extends rearward above the working machine 7.

A pin 40 is removably inserted into the support 35 to prevent the collar 39 from coming off.

Note that, as shown in FIG. 5, a sector-shaped recess 41 with a center angle R1 is provided on the upper surface of the holder 38, and
Correspondingly, a sector-shaped convex portion 42 with a center angle R2 is provided on the lower surface of the cylindrical portion 37 of the holder 36, and the swing angle of the holder 36 is limited to the difference R3 between R1 and R2. .

A mounting part 43 for the grounding body stay is provided at the rear of the holder 36, and a grounding body stay 44 is mounted on this mounting part 43 in a vertical position, movable in the vertical direction, and detachable. Installed.

Reference numeral 45 denotes a grounding body, that is, a gauge body, which is exemplified as a wheel, and is provided at the lower part of the stay 44 and is in contact with the ground.
The stay 44 carries a part of the weight of the working machine 7, and in detail, the stay 44 has a cylindrical body 52 fixed to the mounting part 43, and a female member fixed to the upper part of the cylindrical body 52. An adjustment handle 46 is fixed to the upper end of an adjustment screw shaft which is screwed into the threaded portion 53 so as to be freely forward and backward, and is fitted into the cylinder body 52 so as to be movable in the vertical direction; A screw tube 48 that is screwed together and a grounding body support section 4 that is fixedly provided at the lower part of the screw tube 48 and that includes a grounding body 45 rotatably around a horizontal axis.
9, the grounding body 45 is moved in the vertical direction by rotation of the adjustment handle 46, and thereby the entire working machine 7 including the working part 13 is positioned in the vertical direction.

Note that a guide rod 50 is erected from the upper surface of the support portion 49.
Correspondingly, a guide frame 51 is attached to the cylindrical body 52, and the guide rod 50 is fitted into the guide frame 51 so as to be movable in the vertical direction. Prevents sideways swing.

As this grounding body 45, a bridge, a crawler, or the like whose longitudinal direction is the traveling direction of the work vehicle 1 may be used.

Reference numeral 47 denotes a spring, which is elastically stretched between the longitudinal middle part of the holder 36 and the longitudinal middle part of the machine frame 12 of the work machine 7, and here, the ground body holder 36 is attached to the holder at the rear of the work machine 7. The ground body 45 and the ground body stay 4 provided in 36
4 is provided on the work machine 7 so as to be able to swing around the vertical axis, and is biased against the work part 13. When the work machine 7 is raised, the elastic force of the spring 47 causes the holder 3
6 swings toward the working part 13 side, and when the working machine 7 is brought to the raised position, the holder 36 provided with the grounding body 45 is held at the end of the swinging area on the working part 13 side, and prevents the swinging. thwarted.

In addition, in Fig. 2, 31 is a spatula that can be attached to and removed from the rear surface of the casing 21 to prevent various plate-like materials including transparent resin, and has a shape that follows the sloping elevation A□ of the ridge A. It extends to

Reference numeral 32 denotes another spatula, which is provided on the rear upper surface of the casing 21 in a manner that extends outwardly and is rotatable with a limit around the horizontal axis, and corresponds to the top surface A2 of the ridge A and is provided with a shape that extends outwardly. It is biased by a spring or the like.

In the above configuration, the shaving work body 22 is attached to carry out the work of scraping the furrow A, and the screw work body 22 is attached to the work of painting the furrow A, and such a preparation position is taken. Later, the work vehicle 1 is moved along the longitudinal direction of the furrow A with the working part 13 corresponding to the inclined elevation A1 of the furrow A and the ground gauge body 15 being in contact with the elevation A1,
In addition, the work body 22 is driven around the vertical axis.

During work, the single width of the traveling work vehicle 1 varies depending on the model, and the auxiliary traveling device 3 may or may not be attached to the rear wheels 2. The amount of overhang (offset amount) of the section 13 and the gauge body 15 becomes a problem, and in order to deal with all such situations, the lateral vibration control system, such as a chino, which is normally suspended between the vehicle body 5 and each lower link 9, is removed. has been left behind.

Due to this detachment, the work implement 7 sways laterally, and furthermore, since it is far away from the work vehicle 1, the lateral swing causes deterioration in maneuverability.

However, in the specific example of the present invention, the ammunition 29 is suspended between the vehicle body 5 and each lower link 9 or one of the lower links 9 of the three-point link 10, and the ground body holder 36 is connected to the work machine 7.
The work unit 13 and the gauge body 15 are provided in the working machine 7 so as to be swingable around the vertical axis together with the ground body 45 and the ground body stay 44 provided in the holder 36 at the rear of the work unit 13 and the gauge body 15.
can always be pressed against the inclined elevation A1, preventing the work machine 7 from lateral shaking, ensuring stable maneuverability, and also making it possible to perform work by keeping the amount of furrow scraping or furrow coating constant using a gauge body 15.

In addition, when continuing work along the longitudinal direction of the furrow A, the amount of furrow scraping or furrow coating becomes unstable, especially when
This tendency is more pronounced if the furrow A is uneven in its width direction.

In such a case, in the specific example of the present invention, the work machine 7 is
Since the working part 13 and the ground gauge body 15 are pressed against the notch A, the working part 1
3 tries to follow the unevenness, but at this time, the ground body holder 36 is attached to the work machine 7 so as to be able to swing around the vertical axis together with the ground body 45 and the ground body stay 44 provided on the holder 36 at the rear of the work machine 7. , the resistance of the grounding body 45 to the ground in the lateral direction is reduced.
The work machine 7 can smoothly move laterally together with the ground body 45, the ground body stay 44, and the ground body holder 36, and the work unit 13
Large irregularities in the width direction of the ridge A are said to be dripless, and even small irregularities can be smoothly tracked.Also, when the work is coating the ridge, maneuverability deteriorates due to the increase in the amount of coating. In the specific example of the present invention, the working machine 7 is smoothly retreated against the ammunition 29 for the same reason as described above, and the maneuverability is not deteriorated.

Furthermore, if hard foreign matter such as gravel or stones is embedded in the furrow A, an excessive load or an impact load will be applied to the working part 13, and based on this, the working machine 7, including the machine frame 12, will be deformed. Although this will cause damage, even in such a case, the working machine 7 will be smoothly retracted against the ammunition 29 for the same reason as described above, and the working machine 7 will not be deformed or damaged.

Note that the ammunition 29 that urges the work machine 7 and the ground body holder 3
Although one spring 47 is shown in the specific example for biasing the spring 6, a plurality of springs 47 may be used, and in the case of a plurality of springs 47, the strength of each bullet 29 and spring 47 may be adjusted.

Further, the mounting position of the bullet 29 and the spring 47 is free as long as the purpose of urging can be achieved, for example,
As for the spring 47, as long as it is interposed between the machine frame 12 and the holder 36, its attachment position is free.

Additionally, the bomb 29 and spring 47 also include a telescoping fluid cylinder device.

Furthermore, in the embodiment, the grounding body holder 36 extends to the rear of the working machine 7, but the grounding body holder 36 including the grounding body 45 is extended to the front of the working machine 7, and the spring 47 is attached to the holder 36. and the machine frame 12 of the working machine 7, and may be biased against the working part 13.

The present invention is as described above, and although it is a simple means, it has the advantage of being able to solve all of the desired problems.
It is notable that it contributes to the mechanization of agricultural work, and in particular, the present invention is equipped with a bullet that biases the entire working machine including the working part against the ridge, and a gauge body is attached to the frame of the working machine at the tip. Since the holder is equipped with a holder that can freely swing around the vertical axis at the base, and the resistance in the lateral direction of the gauge body is small, the work machine is able to handle the shape of the furrow, the increase in the amount of furrow coating, and the hard foreign matter in the furrow. Correspondingly, it is an extremely practical idea that can be moved horizontally smoothly and its work performance has been dramatically improved.

In addition, since it is equipped with a spring that prevents the holder from swinging when the work equipment is in the raised position, the holder with the gauge body does not swing when the work equipment is in the raised position, and the work equipment can be stably maintained in the raised position. It is safe and secure.

Furthermore, the gauge body is provided at the tip of the holder via a vertical movement adjustment mechanism, and a spring is interposed between the machine frame and the holder. When determining the position in the vertical direction, the spring does not pose any problem, and the operation can be easily performed, and the structure of the vertical movement adjustment mechanism can be simplified.

[Brief explanation of the drawing]

The figures show a specific example of the present invention, in which Fig. 1 is a plan view, Fig. 2 is a rear view, Fig. 3 is an enlarged view of the gauge body and its support structure, and Fig. 4 is a grounding body equipped with a grounding body. FIG. 5 is a partially omitted perspective view showing a state in which the holder is attached to a working machine, and FIG. 5 is a cross-sectional view showing a swing angle limiting structure of the grounding body holder. 1... Traveling work vehicle, 7... Furrow surface work machine, 10...
・Three-point link, 12... Machine frame, 13... Working part, 2
9... Bullet machine, 33... Support bracket, 35
...Holder support, 36...Grounding body holder, 44
...Grounding body stay, 45...Grounding body, 47...Spring, A...Raze.

Claims (1)

[Scope of utility model registration request] A ridge surface working machine having a working part on one side is connected to a traveling working vehicle so as to be able to rise and fall freely, and is equipped with a bomb that urges the entire working machine including the working part against the ridge, and is attached to the machine frame of the working machine. ,
A holder arranged in the front-rear direction is provided at the base so that it can freely swing around the vertical axis, and a gauge body is provided at the tip of the holder via a vertical movement adjustment mechanism, and the work equipment is placed in the raised position between the machine frame and the holder. A ridge surface work machine characterized by interposing a spring to prevent the holder from swinging when the holder is turned.