KR890001886B1 - Rice planter - Google Patents

Abstract

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Description

Yianggi

The figure shows the Example of the rice transplanter which concerns on this invention,

1 is a side view showing the whole rice transplanter.

2 is a side view showing the attachment state of the sensor float and the mud hardness detection piece.

3 is an enlarged end side view showing the connection between the sensor float and the muddy hardness detection piece.

4 is a plan view showing the attachment state of the swinging metal ball and the depth adjustment lever.

5 is a front view of FIG.

6 is a plan view showing an arrangement state of a muddy hardness detection piece and a float group.

7 is a side view showing another embodiment of the attachment state of the sensor float and the muddy hardness detection piece.

* Explanation of symbols for main parts of the drawings

5: planting mechanism 7A: sensor float

8: sowing device 14: swinging arm (ring member)

15: hydraulic cylinder (lift means) 16: control valve

16a: Spoul 17: Release wire (connection means)

17a: inner wire 17b: outer wire

18: operating shaft 20: compression spring (means for applying force)

30: mud hardness adjustment piece 30B: working part

32: support member a: end portion to which the outer wire is attached

b: End of inner wire attached L: Standard spacing

X: point 1 Y: point 2

The present invention is to lift and operate the device to maintain the attitude of the sensor float with respect to the device to be collected in accordance with the up and down swing of the sensor float with respect to the ground pressure fluctuations corresponding to the gas operating up and down in accordance with the tilling ground, The planting is configured to maintain a constant posture on the surface of the device, and automatically adjusts the lifting control sensitivity of the device according to the fluctuation of the mud hardness detection piece, which is moved by the running resistance of the aircraft as it enters the mud. It's about the rice transplanter that makes it possible. Background Art Conventionally, rice transplanters which perform lifting control of a device to be driven using the fluctuation amount of a swing of a sensor float have been widely known. Conventionally, in this type of rice transplanter, by means of automatically raising and lowering the planting device according to the ground load detection of the float pressed on the muddy ground through the spring, the control means for maintaining the planting depth constant or approximately constant is provided. However, in order to perform the depth control well, such a seeding needs to adjust the pressing force with respect to the muddy surface of the float mentioned above with the appropriate pressing force according to the hardness of the muddy surface which differs for every arable land. Therefore, it is conceivable to connect the mud hardness detection piece to the lifting means of the device for collecting the mud hardness detection part and to adjust the response relationship between the sensor float and the lifting means in accordance with the detection result of the mud hardness detection piece.

In this case, however, the connecting means between the elevating means and the sensor float requires not only the connecting means between the elevating means and the mud hardness detection piece, but also the elevating means requires a special device. Incurs disadvantages. An object of the present invention is to devise a connection between the lifting means, the sensor float and the muddy hardness detection piece to provide a rice transplanter does not generate the above disadvantage. This problem is solved by adjusting the sensitivity of the sensor float by giving the sensor float the detection result of the mound hardness detection 대신 instead of connecting the lifting means and the muddy hardness detection string.

In such rice transplanters, the sensor float is connected to a device which is pivotably pivoted around the first point of the sensor flute, and the second point of the sensor flute is located forward from the first point where the link member is electrically connected. It is installed so as to be swingable up and down in a circumference, and the said link member has a connecting means to the device lifting means collected at the front end thereof, and is located opposite to the front end described with respect to the second point. At the rear end, there is a means for applying the force to suppress the electric sensor float in the earthing direction, and it also enters into the mud and swings against the force applied by the means for applying the electric force by the ground resistance according to the movement of the aircraft. It is installed so as to be able to oscillate integrally with the link member which electric black hardness detection piece is provided, and the said elevating means opens the said connecting means. According to the up and down movement related to the ground pressure fluctuation of the sensor float, which is transmitted by the sensor float, the chamfers are raised and lowered so as to make the reference distance between the reference position of the device and the front end of the link member constant. The sensitivity of the sensor float is automatically adjusted by increasing or decreasing the force applied down the means for applying the electric force by the shaking.

In particular, the above-described configuration occurs.

① The seedling is connected by means of applying a downward force to the sensor float, which is responsible for the lifting operation of the device, and the electric black coal hardness detection 경. The force applied by the applying means is increased to make the sensitivity of the sensor float dull. On the contrary, when the arable land is soft, the lifting force of the device that makes the sensing float of the sensor float sensitive by detecting the force applied by the means for applying the force due to the shaking to the mud related to the decrease in the ground resistance of the mud hardness detection piece is reduced. It can be made stable. In addition, since the mud hardness detection piece is integrally attached to the link member which transmits the force applied downward by the force applying means to the sensor float, the force applied downward by the means applying the electric force Muddy hardness is also used as a downward force against the detection piece.

(2) In addition, the connecting mechanism to the lifting means for the device to be collected at the front end with the second point, which is the pivot point of the link member, is connected to each of the means for applying the force to the rear end. In the case of swinging upward, the link member swings upward in conjunction with the link member, whereby the force applied by the means for applying the electric force can be increased. In this case, as the front end of the link member is controlled to raise and lower the apparatus so that the front end of the link member is always kept at a constant distance from the reference position of the apparatus, the sensor member of the link member is caused by the fluctuation of the link member by the above-mentioned mud hardness detection piece. The pivot point works up and down in the same direction as the rear end. Therefore, when the mud hardness detection piece swings upward due to the running resistance, the second point, which is located in front of the sensor float, moves upward, and the position of the sensor float is higher than the rear part, so that the sensor Dull the sensitivity.

From the operation of ①, only the variable to apply the force of the sensor float in comparison with the conventional one is good as a structure, so that the structure is achieved with a simple, and the force of the means for applying the force of the sensor float to the muddy detection piece Since it can also be used as a force to apply, one means to apply the force as a whole is achieved, and it is also possible to further simplify the structure from this.

For this reason, the structure as a whole can be greatly simplified, and the arrangement of each component is easy and the maintenance is excellent. In addition, only the force applied by the means for applying the force to the sensor float from the action of 2) further assists the sensitivity change in accordance with the change in attitude of the sensor float, compared to the change in the sensitivity to the sensor float. Detection sensitivity control can be performed reliably.

In another preferred embodiment of the present invention, the connecting means is provided with a release device that attaches the inner wire to the front end of the link member of the link member and the outer wire is connected to the support member that protrudes from the device. In addition, the end of the inner wire attached and the end of the outer wire attached are located on or near the same arc centered on the first point, and the inner wire is attached. There is a rice transplanter which controls the lifting and lowering as a reference interval that describes the gap between the end and the end of the external wire.

According to the above-described configuration, even if the end of the inner wire is relatively slippery with respect to the end of the outer wire attached by the up and down operation of the sensor float, the inner and outer wires attached to the inner wire are attached. The relative posture change of the inner wire from the end to the end attached to the link member is made at or near the same arc around the first point, which is the swing point of the sensor float. This avoids twisting of the inner wire at the attached end of the outer wire. Accordingly, since the sliding operation of the inner wire relative to the outer wire is smooth, the up and down swinging of the sensor float can be smoothly performed, so that the raising and lowering control of the device can be performed more reliably.

In addition, the inner wire from the attached end of the outer wire to the end attached to the link member has a relatively radius that connects the attached end of the inner wire and the attached end of the outer wire with respect to the first point. In the point of being a large arc string, the inner wire is less shaken when the sliding operation is performed, that is, the space occupied by the trajectory is less, which is less of an obstacle to the arrangement of other equipment.

As another preferable form of this invention, the seedling which entered the mud of the above-mentioned mud hardness detection piece, and the operation part mentioned above is a rice transplanter located near the apparatus.

This arrangement is located near the mechanism where the first point of the sensor float is planted. The planting is protruded into the mud in the acting portion despite the vertical swing of the sensor float by protruding and extending the acting portion to the vicinity of the mechanism. The change is suppressed as much as the depth is closer to the aforementioned first point.

As a result, the sensor operation of the mud hardness detection piece can be made stable, and furthermore, the operation of the sensor float can be made stable, and the planting can accurately determine whether or not the arable land corresponding to the device is solid.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail, referring drawings. As shown in FIG. 1, the rice transplanter according to the present invention is equipped with an engine 1, a mission case 2 and a control unit 3 at the front of the body, and a lifting link mechanism 9 at the rear of the body. An interlocking device which is interlocked with each other via an interlocking device is provided.

This planting device 8 has a substrate holder 4, a planting mechanism 5, a planting case 6 and two side floats 7B and a sensor float 7A positioned between the side floats 7B. The ground float group 7 is comprised.

The core describes the lifting control of the apparatus 8 in detail. As shown in FIG. 2, the seedlings are rotatably connected to one end of the connecting arm 11 integrally with the lateral axis 10 on the lateral axis 10 freely rotatable on the case 6. The rear end bracket 12 of the sensor float 7A positioned at the center of the ground float group 7 which is fixed and attached to the other end of the connecting arm 11 is relatively swingably linked.

(X) is the pivot axis between the rear end bracket 12 and the connecting arm 11, which indicates the first point of the sensor float 7A. That is, the above-described sensor float 7A can be swung in the up and down direction using the first point X as the swing axis, and this swing displacement becomes an output value as a sensor of the sensor float 7A. The front end bracket 13 of the above-described sensor float 7A is rotatably connected to a link member that can swing in the vertical direction, here indicated as a flat swing arm 14. The rocking axis of this rocking arm 14 is indicated as (Y), which indicates the second point of the sensor float.

An inner wire 17a of the connecting wire 17 is connected to the front end of the swinging arm 14, and one of the lifting means for driving the lifting link mechanism 9 for the device 8, in which the inner wire 17a is collected. It is interlocked with the control valve 16 constituting the towing hydraulic system. The hydraulic cylinder 15 is, of course, used as an actuator in the hydraulic system.

In more detail, the inner inner wire 17a is provided on the operation shaft 18 for operating the water spring 16a of the sprue 16a of the control valve 16 in the forward and reverse directions. It is interlocked with the fixed bracket 19. In addition, a compression spring 20, which is an example of a means for applying a force, is installed on the rear end of the thousand swing arm 14, and the sensor float 7A is lowered from the first point circumference through the front end bracket 13 described above. Gives the force to swing.

4 to 5, the mounting structure of the compression spring 20 will be described in detail. In the plan view, a substantially c-shaped member ( 23A) is loosely fitted so as to swing up and down on the axial center of the front and rear shaft, and the other c-shaped member 23B, which is arranged with the web faces against the c-shaped member 23A, is fixedly attached and swinged. The metal sphere 23 is comprised.

The U-shaped member 23B described above is relatively rotatably connected at the lateral axial center Z of the U-shaped upper spring receiving member 24 arranged in a state where the wave faces intersect at right angles.

An angle developing bracket 31 is fixedly attached to one flange surface of the upper spring receiving member 24, and a cutout portion 32A in which an inner wire can be inserted and detached from the extended protruding bracket 31 is attached. The support member 32 is installed to be detachable and constitutes the end portion (a) to which the external wires are attached. Meanwhile, the connecting rod 25 is projected upward through the upper spring receiving member 24, which is electrically coupled to the rear end of the electric swing arm 14, which is relatively swingable, and protrudes upward. The lower spring receiving member (26) consisting of a spring receiving portion (26A) and a pipe (26B) fixedly attached to the spring receiving portion (26A) to the outside and penetrates the upper spring receiving member (24). have.

The compression spring 20 described above is attached to the pipe 26B, which is provided between the upper spring bearing member 24 and the lower spring bearing member 26, from the outside. Since the connecting rod 25 and the upper end of the pipe 26B of the lower spring receiving member 26 are fitted with screws, the connecting rod 25 and the lower spring receiving member 26 are rotated to be screwed in and connected. The installation interval of the upper and lower spring receiving members 24 and 26 by the sliding movement relative to the rod 25 is adjusted.

As a result, the force applied to the compression spring 20 changes. Therefore, since the force applied to the compression spring 20 described above is a force applied downward to the sensor float 7A, the sensitivity of the sensor float 7A is adjusted by adjusting the force applied thereto.

The sensor float 7A swings around the first point X in response to the force applied by the compression spring 20 due to the ground pressure fluctuation, and consequently, when the front end of the sensor float 7A swings up and down, The inner wire 17a switches over the sprue 16a to change the vertical position of the device 8 for planting. That is, the device 8 which raises and lowers so that the reference spacing L between the outer wire 17b end as the reference position 32 of the device, and the front end of the wedge arm 14 is constant can be raised and lowered.

In addition, the front end of the outer wire (17b) and the swivel arm (14) extending to the side of the c-shaped member (23B) is set to be located around the radius (R) around the first point (X) It is. 2 and 4 will be described in detail the depth adjustment mechanism to be collected.

The core is fixedly attached to the adjustment lever 27 which is collected on the lateral shaft 10 which is pivotally connected to the case 6, and the core is the c-shaped member which is electrically transmitted from the holder 28 which is swingable integrally with the adjustment lever 27. The projections 29 engaged with the 23A are projected and installed from the adjustment lever 27, and the cores of the front and rear shafts 21 are transferred to the swinging metal sphere 23, which has been transferred by the swinging operation of the adjustment lever 27. The front end of the sensor float 7A is moved up and down by the same amount as the rear end by swinging around the shaft center.

As shown in FIG. 2, the planar swing arm 14 is provided on the lateral support shaft 22, which is provided at the front end bracket 13 of the sensor float 7A described above and has the second point Y as the axial center. ) And the muddy hardness detection piece 30 is rotatably attached.

The mud hardness detection piece 30 enters the action part 30B connected to the base end 30A into the mud, and is applied to the force applied by the compression spring 20 which is electric by grounding resistance caused by the running of the gas. It is composed of a mechanism that detects whether the arable land is hard or soft by shaking up and down. In addition, the mud hardness detection piece 30 is capable of oscillating integrally with the above-mentioned flat-type swing arm 14, and the harder the cultivated land is, the more it swings upward and compresses the compression spring 20, which is consequently compressed. The force applied downward to the sensor float 7 by the spring 20 is increased.

In addition, when the arable land becomes soft, the compression spring 20 is extended so that the force applied downward to the sensor float 7 is small. In this way, the sensitivity of the sensor float varies depending on whether the arable land is hard or not.

At that time, as indicated by the dashed-dotted line in FIG. 2, the compression spring 20 is compressed when the muddy hardness detection piece 30 swings upward, but the tip of the outer wire 17b and the swinging arm 14 that are unbalanced 14 Since the reference distance (L) with the front end of the) is kept constant, the second point (Y), which is the swinging center of the swivel arm (14), also moves upwards, and the sensor float (7A) has the front part behind. You will move to a higher position.

Therefore, the sensor sensitivity is converted to a direction that becomes dull. On the other hand, when the mud hardness detection piece 30 swings downward, the sensor float (7A) is moved in a front position drooping than the back. Since the mud hardness detection piece 30 described above is integrally swingably attached to the lateral axis 22 described above, the mud hardness detection piece 30 can be swinged integrally with the above-mentioned uneven swing arm 14 and uneven swing. A force is applied to the mud into the mud by means of a means 20 for applying the electric force acting on the rear end of the arm 14. In other words, the means 20 for applying the above-mentioned force can impart a force applied to both the sensor float 7A and the muddy hardness detection piece 30.

As shown in FIG. 3, the front end bracket 13 of the above-described sensor float 7A is provided with a plate-shaped restrictor 31 which protrudes into the working space of the ceiling swing arm 14, and is muddy. It has a function of regulating the fluctuation to the lower side of the hardness detection piece 30. In other words, by limiting unlimited fluctuations in soft arable land, the phenomenon of pitching of sensor float is suppressed. As shown in FIG. 6, the acting part 30B of the muddy hardness detection piece 30 is located in the middle between the sensor float 7A and the side float, and is in the installation state which suppressed the influence on muddy flow. .

In addition, as shown in FIG. 2, since the acting portion 30B of the muddy hardness detection piece 30 described above is located near the first point X, which is provided near the seeding mechanism 5, 2 As indicated by the dotted line, even when the sensor float (7A), which guides the sinking and rising of the aircraft, is shaken, the muddy hardness detection piece (30) has the shank volume since the acting portion (30B) is near the swinging point (X). This is small enough to enter a certain depth. Therefore, the detection sensitivity of the muddy hardness detection piece 30 does not change unpredictably.

As can be understood from FIG. 2, the above-mentioned mud hardness detection piece 30 is connected to the actuating portion 30B so as to be fixed as a screw so as to be relatively slidable with respect to the base end 30A. At 30B, the distance M of the swing central branch of the base end 30A is configured to be changeable. In the case where the change in the hard or soft area of the arable land is large, the sensitivity M as the detection piece is reduced by reducing the aforementioned distance M. In addition, when the change is small, the sensitivity M can be made sensitive by increasing the interval M.

The attached end portion (a) of the outer wire and the attached end portion (b) of the inner wire are located on the arc of the radius (R) centered on the first point (X). The attached end (a) of the ear displaces this arc. Therefore, the shaking of the inner wire 17a related to the up-down swing of the sensor float 7A is reduced.

Of course, the end (a) to which the external wire is attached may be anywhere near the circular arc.

Next, another embodiment of the present invention will be described.

Ⓐ The means 20 for applying the electric force may be a tension spring that exerts a force toward the rear end of the swivel arm 14 downward, or anything that can exert an elastic force other than the spring.

Ⓑ The connecting means 17 described above may be a string.

Ⓒ The above-mentioned chamfer may be a mechanical link mechanism using a pneumatic cylinder or an electric motor in addition to the hydraulic cylinder as the device elevating means 15.

Ⓓ The raising and lowering control of the seeding device according to the present invention supports the wheel case supporting the propulsion wheel at the lower end to the base frame so that the wheel case can swing up and down at the attachment point, and the wheel case is moved up and down with respect to the body. It can also be seen that it is applied to the walking type rice transplanter to control the lifting.

Ⓔ As shown in FIG. 7, the arm 35, which is swingable in the vertical direction, is attached to the front end bracket 13 of the sensor float 7A, and the front end of the arm 35 is mounted. The inner wire 17a and the core are extended from the case 6, and the core is attached to the end of the outer wire 17b to the bracket 32 as a reference position of the device, and the arm 35 which is electrically connected with the bracket 32; Compression spring 20 is attached between the two spring springs to apply the force to the sensor float 7A and the arm 35, which is integrally operated as a means for applying a force to the muddy hardness detection piece 30 In addition, the swing shaft core Y between the front end bracket 13 and the arm 35 of the sensor float 7A is moved up and down in the same direction due to the up and down oscillation due to the running resistance of the muddy hardness detection piece 30. Operation so that the position of the sensor float (7A) is raised above the front, and partially over the back. A configuration that can be forcibly changed may be adopted.

Claims (5)

In the rice transplanter which controls the lifting device by the lifting means and adjusts the sensitivity of the lifting control according to the mud hardness, the sensor float 7A is the first point of the sensor float 7A. (2) the second tally (Y) of the sensor float (7A), which is connected to the device (8) which is oscillable in the vertical direction around the (X), and which is located forward of the first point (X) where the link member (14) was previously described. 2) The second link point Y, which is installed to be swingable in the vertical direction at the circumference, has a connecting means 17 to the device lifting means 15, which is collected at the front end thereof. On the rear end located opposite to the front end, a means (20) for applying a force for suppressing the sensor float (7A) in the ground direction is installed, and enters into the mud, With electric power Is installed so as to be able to oscillate integrally with the link member 14 which transmitted the mud hardness detection piece 30 which oscillates in response to the force applied by the means 20. According to the up and down rocking motion related to the stopping pressure fluctuation of the sensor float 7A transmitted via the sensor float 7A, the seedlings are fixed with a reference distance L between the reference position 32 of the apparatus and the front end of the link member. The sensitivity of the sensor float 7A is raised and lowered by raising and lowering the device 8 so that the force applied to descend below the means 20 for applying the electric force due to the fluctuation of the muddy hardness detection piece 30 at that time. Rice transplanter, characterized in that is automatically adjusted. The method according to claim 1, wherein the connecting means (17) attaches the inner wire (17a) to the front end of the link member (14). It is composed of a release wire (17) attached to the support member 32, the reference distance (L) described above is the end portion (b) of the attached inner wire and the end portion (a) of the outer wire attached Rice transplanter, characterized in that the gap. 3. The method according to claim 2, wherein the end (b) of the inner wire to be attached and the end (a) of the outer wire to be attached are located at the same arc or near the center of the first point (X). The rice transplanter which is characterized by having. 4. The lifting device (15) according to claim 3, wherein the elevating means (15) comprises a hydraulic cylinder (15a), a control valve (16) for controlling it, and an operating shaft (18) for operating the spouling (16a) of the control valve in the forward and reverse directions. And an inner wire (17a) of the release wire (17) which is electrically connected to the operation shaft (18). The rice transplanter according to any one of claims 1 to 4, characterized in that the rice transplanter is located near the mechanism (5), which is placed by the acting portion (30B) entering the muddy water of the muddy hardness detection piece (30).

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