JP2021170962A - Seedling transplanting machine with fertilization device - Google Patents

Abstract

To prevent fertilizer from being scattered in a frame and a planting device.SOLUTION: A seedling transplanting machine with a fertilization device is provided in which a seedling planting unit is mounted in a lifting/lowering manner to the rearward of a traveling vehicle body and a fertilizer tank of the fertilization device and a fertilizer feeding-out unit are mounted to the rearward of the traveling vehicle body, and a fertilizer guide unit (70) for pumping the fertilizer being fed from the fertilizer feeding-out unit by the pressure wind of a blower and guiding it to a grooving unit (64) is provided. In the seedling transplanting machine with the fertilization device, a discharging path (HK) being an alternative path from the path for guiding it to the grooving unit (64) is provided in the fertilizer guide unit (70). When the path for guiding it to the grooving unit (64) is clogged up, the fertilizer is guided to the discharging path (HK) by the pressure wind. A discharging outlet (HD) is provided in the conveyance direction downstream side of the discharging path (HK). The discharging outlet (HD) is arranged toward the field surface.SELECTED DRAWING: Figure 20

Description

The present invention relates to a technical field of a seedling transplanting machine with a fertilizing device in which a fertilizing device is attached to a rice transplanter.

Conventionally, a feeding portion for delivering fertilizer is arranged on the front side of the seedling stand, and a groove making device for forming a groove for fertilizer application is arranged in the vicinity of the lower end of the seedling loading stand, and the fertilizer delivered by the feeding portion is placed. A seedling with a fertilizer application device is arranged so that a fertilizer application hose leading to the groove-growing device extends rearward from the lower part of the feeding portion and enters the lower part of the seedling stand, and a pressure air for fertilizer transfer is blown into the fertilizer application hose. There was a transplant machine.

Japanese Unexamined Patent Publication No. 2000-236722 Japanese Unexamined Patent Publication No. 10-94309

The above-mentioned conventional rice transplanter with fertilizer application device has a structure in which the feeding part and the groove making device are separated from each other in the front-rear direction. There is an advantage that can be done. However, once the groove making device is clogged with mud or the like and the fertilizer discharge port of the fertilizer application hose is blocked, the pressure air blown into the fertilizer application hose does not flow in the fertilizer transfer direction. In that case, if the fertilizer application device continues to operate in this state and more fertilizer is supplied into the fertilizer application hose, the fertilizer is located in the transfer route and becomes horizontal so that the fertilizer does not easily move in the transfer direction due to its own weight. If there is, fertilizer accumulates one after another in that place, and the fertilizer is immediately clogged up to the fertilizer supply point of the fertilizer hose and to the delivery part that supplies fertilizer to the fertilizer hose. For this reason, fertilizer may be clogged up to the feeding portion and cause malfunction of the feeding portion before the work of removing the mud or the like is noticed in the groove making device.

Further, although the fertilizer application hose is provided with an opening when the fertilizer is clogged, there is a problem that the fertilizer discharged from the opening is scattered. If scattered fertilizer adheres to the planting equipment or frame, it may corrode and be damaged.

Therefore, in the present invention, even if mud or the like is clogged in the groove making device and the fertilizer discharge port of the fertilizer application hose is blocked, malfunction of the feeding portion is unlikely to occur, and the fertilizer discharged due to fertilizer clogging is less likely to occur in the frame or planting. The purpose is a seedling transplanter with a fertilizer application device so that it does not scatter on the attachment device.

In the first invention, the seedling planting portion (4) is mounted on the rear part of the traveling vehicle body (2) so as to be able to move up and down, and the fertilizer tank (60) of the fertilizer application device (5) is attached to the rear portion of the traveling vehicle body (2). A fertilizer guide unit (70) is provided with a fertilizer feeding unit (100), and the fertilizer fed from the fertilizer feeding unit (100) is pumped by the pressure air of the blower (67) to guide the fertilizer to the groove making device (64). In the provided seedling transplanting machine with a fertilizer application device, the fertilizer guide unit (70) is provided with a discharge route (HK) which is a different route from the route to guide the groove device (64), and the groove device (64) is provided. It is a seedling transplanting machine with a fertilizer application device, characterized in that fertilizer is guided to the discharge route (HK) by the pressure air when the route to guide the fertilizer is clogged.

A second aspect of the present invention is characterized in that a discharge port (HD) is provided on the lower side of the discharge path (HK) in the transport direction, and the discharge port (HD) is arranged toward a farm scene. Item 2. The seedling transplanting machine with a fertilizer application device according to item 1.

A third aspect of the present invention is the second aspect of the present invention, wherein the discharge port (HD) is located on the front side of the machine body from the groove making device (64) and above the machine body from the groove making device (64). It is a seedling transplanting machine with a fertilizer application device described in 1.

In the fourth aspect of the present invention, the seedling planting portion (4) is provided with a ground leveling float and a ground leveling rotor (SL) for leveling the field scene, and the discharge path (HK) is located above the ground leveling float. The seedling transplanting machine with a fertilizer application device according to any one of claims 1 to 3, wherein the discharge port (HD) is located in the vicinity of a leveling rotor (SL).

The fifth aspect of the present invention is the fertilizer application according to claim 4, wherein the discharge port (HD) is located behind the ground leveling rotor (SL) and in front of the fertilizer guide portion (70). It is a seedling transplanter with a device.

The sixth aspect of the present invention is any of claims 1 to 5, wherein the discharge path (HK) is curved so that the fertilizer is preferentially guided to the groove-growing device (64) side. The seedling transplanting machine with the fertilizer application device according to item 1.

In the seventh aspect of the present invention, a curved portion (WK) having a curved shape is formed on the upstream side of the discharge path (HK), and the curved portion (WK) goes from the upper side to the lower side of the machine body. The seedling transplanting machine with a fertilizer application device according to any one of claims 1 to 6, characterized in that it has a shape.

Eighth invention of the present invention provides a mudguard cover (DK) that prevents mud from scattering due to the operation of a strongly configured main frame (MF) that supports the seedling planting portion (4) and the ground leveling rotor (SL). The discharge path (HK) provided in the seedling planting portion (4) is a path that passes between the main frame (MF) and the mudguard cover (DK), and also includes the main frame (MF). The seedling transplanting machine with a fertilizer application device according to any one of claims 4 to 7, wherein the discharge port (HD) is located below the body of the mudguard cover (DK).

According to the first invention, when the fertilizer guided to the groove making device (64) side is clogged, the pressure air and the fertilizer are released by the discharge path (HK), so that the malfunction of the feeding portion can be prevented.

According to the second invention, in addition to the effect of the first invention, since the discharge port (HD) is arranged toward the field scene, the fertilizer is directly discharged to the field, so that the machine body and the planting It is possible to prevent fertilizer from adhering to the attachment device.

According to the third invention, in addition to the effect of the second invention, the discharge port (HD) is provided on the front side of the machine body from the groove making device (64) and above the machine body from the groove making device (64). Since the discharge port (HD) is not immersed in the field when the seedling planting portion (4) is lowered, it is possible to prevent the discharge port (HD) from being clogged.

According to the fourth invention, in addition to the effect of the present invention according to any one of 1 to 3, the discharge path (HK) is located above the leveling float, and the discharge port (HD) is located. Because it is located near the leveling rotor (SL), the leveling float acts as a guard member of the discharge path (HK), and the fertilizer discharged from the discharge port (HD) is difficult to be discharged onto the leveling float. Therefore, it is possible to prevent fertilizer from accumulating on the leveling float.

According to the fifth invention, in addition to the effect of the fourth invention, the discharge port (HD) is discharged by being located behind the ground leveling rotor (SL) and in front of the fertilizer guide portion (70). The route (HK) can be simply constructed.

According to the sixth invention, in addition to the effect of the present invention according to any one of 1 to 5, the fertilizer is preferentially guided to the groove making device (64) side in the discharge path (HK). By being curved in this way, it is possible to prevent fertilizer from being sent to the discharge path (HK) side in a normal state where the groove making device (64) side is not clogged.

According to the seventh invention, in addition to the effect of the present invention according to any one of items 1 to 6, a curved portion (WK) having a curved shape is formed on the upstream side of the discharge path (HK). However, since the curved portion (WK) has a shape that goes from the upper side to the lower side of the machine body, fertilizer is sent to the discharge path (HK) side when the groove making device (64) side is not clogged. It can be prevented from coming.

According to the eighth invention, in addition to the effect of the present invention according to any one of 4 to 7, the discharge path (HK) passes between the main frame (MF) and the mudguard cover (DK). The main frame (MF) is made of aluminum or iron, for example, because the discharge port (HD) is located below the main frame (MF) and the mudguard cover (DK). Corrosion can be prevented by adhering fertilizer to the mudguard cover (DK).

FIG. 1 is a substantially left side view of a seedling transplanting machine according to a preferred embodiment of the present invention. FIG. 2 is a schematic plan view of the seedling transplanting machine shown in FIG. FIG. 3 is a substantially left side view showing the details of the fertilizer application device. FIG. 4 is a schematic cross-sectional view of a fertilizer hopper and a feeding case in the vicinity of the shutter. FIG. 5 is a schematic perspective view of the shutter mechanism including the shutter. FIG. 6 is a schematic plan view of the vicinity of the blower. FIG. 7 is a block diagram showing a control system, a detection system, and a drive system of a fertilizer application device of a seedling transplanter according to a preferred embodiment of the present invention. FIG. 8 is a flowchart of fertilizer application amount control executed by the fertilizer application device of the seedling transplanter according to the preferred embodiment of the present invention. FIG. 9 is a flowchart of fertilizer application amount control executed by the fertilizer application device of the seedling transplanter according to another preferred embodiment of the present invention. FIG. 10 is a substantially left side view showing details of a fertilizer application device of a seedling transplanter according to another preferred embodiment of the present invention. FIG. 11 is a block diagram showing a control system, a detection system, and a drive system of a fertilizer application device of a seedling transplanter according to another preferred embodiment of the present invention shown in FIG. FIG. 12 is a schematic vertical sectional view showing details of a fertilizer application device of a seedling transplanter according to another preferred embodiment of the present invention. FIG. 13 is a block diagram showing a control system, a detection system, and a drive system of a fertilizer application device of a seedling transplanter according to another preferred embodiment of the present invention shown in FIG. FIG. 14 is a schematic vertical cross-sectional view of the vicinity of the fertilizer hopper of the fertilizer application device of the seedling transplanting machine according to still another preferred embodiment of the present invention. FIG. 15 is a schematic vertical cross-sectional view of the vicinity of the fertilizer hopper of the fertilizer application device of the seedling transplanting machine according to still another preferred embodiment of the present invention. FIG. 16 is a schematic vertical cross-sectional view of the vicinity of the fertilizer hopper of the fertilizer application device of the seedling transplanting machine according to still another preferred embodiment of the present invention. FIG. 17 is a substantially vertical cross-sectional view of the vicinity of the groove-growing device of the fertilizer application device of the seedling transplanter according to still another preferred embodiment of the present invention. FIG. 18 is a block diagram showing a method of processing a fertilizer detection signal of a grain loss sensor. FIG. 19 is a plan view showing the discharge route. FIG. 20 is a side view showing the center float and the discharge path. FIG. 21 is a side view showing a side float and a discharge path.

FIG. 1 is a substantially left side view of the seedling transplanting machine according to a preferred embodiment of the present invention, and FIG. 2 is a schematic plan view thereof.

As shown in FIGS. 1 and 2, in the seedling transplanting machine 1 according to the present embodiment, the seedling planting portion 4 is mounted on the rear side of the traveling vehicle body 2 via the elevating link device 3 so as to be able to move up and down. The main body portion of the fertilizer application device 5 is provided on the upper rear side of the traveling vehicle body 2.

The traveling vehicle body 2 is a four-wheel drive vehicle provided with a pair of left and right front wheels 10, 10 and rear wheels 11, 11 which are driving wheels. The front wheel final cases 13 and 13 are provided on the left right side, and the front wheels 10 and 10 are attached to the front wheel axles protruding outward from the convertible front wheel support portion of the front wheel final cases 13 and 13.

Further, the front end portion of the main frame 15 is fixed to the back surface portion of the mission case 12, and the rear wheel gear case 18 The rear wheels 11 and 11 are attached to the rear wheel axles in which 18 is supported in a rolling manner and protrudes outward from the rear wheel gear cases 18 and 18.

The engine 20 is mounted on the main frame 15, and the rotational power of the engine is transmitted to the mission case 12 via the first belt transmission device 21 and the second belt transmission device 23. The rotational power transmitted to the transmission case 12 is changed by a transmission (transmission: not shown in FIGS. 1 and 2) in the transmission case 12, and then separated into traveling power and external extraction power and taken out. Is done.

Part of the running power is transmitted to the front wheel final cases 13 and 13 to drive the front wheels 10 and 10, and the rest is transmitted to the rear wheel gear cases 18 and 18 to drive the rear wheels 11 and 11. Further, the external extraction power is transmitted to the planting clutch case 25 provided at the rear part of the traveling vehicle body 2, and then is transmitted to the seedling planting portion 4 by the planting transmission shaft 26, and fertilizer is applied by the fertilizer application transmission mechanism 27. It is transmitted to the device 5.

The upper part of the engine 20 is covered with the engine cover 30, and the seat 31 is installed on the engine cover 30. In front of the seat 31, there is a front cover 32 incorporating various operation mechanisms, and above the front cover 32, a steering wheel 34 for steering and operating the front wheels 10 and 10 is provided. The lower left and right sides of the engine cover 30 and the front cover 32 are horizontal floor steps 35. A rear step 36 that also serves as a rear wheel fender is provided at the rear of the floor step 35. In addition, on the left and right sides of the front part of the traveling vehicle body 2, spare seedling mounting stands 38 and 38 for placing seedlings for replenishment can be rotated to a position where they project laterally from the machine body and a position where they are stored inside. It is provided.

The elevating link device 3 has a parallel link configuration, and includes one upper link 40 and a pair of left and right lower links 41 and 41. These links 40, 41, 41 are rotatably attached to a rear view gate-shaped link base frame 42 whose base side is erected at the rear end of the main frame 15, and a vertical link 43 is connected to the tip side thereof. ing.

A connecting shaft 44 rotatably supported by the seedling planting portion 4 is inserted and connected to the lower end of the vertical link 43, and the seedling planting portion 4 is rotatably connected around the connecting shaft 44. An elevating hydraulic cylinder 46 is provided between the support member fixed to the main frame 15 and the tip of the swing arm 45 integrally formed with the upper link 40, and the elevating hydraulic cylinder 46 is hydraulically expanded and contracted to move up. The link 40 rotates up and down, and the seedling planting portion 4 moves up and down while maintaining a substantially constant posture.

The seedling planting section 4 is composed of 6 rows of plants, and a transmission case 50 that also serves as a frame and mat seedlings are placed and reciprocated left and right, and seedlings are supplied one by one to the seedling outlet of the seedling receiving plate 58 of each row. At the same time, all the seedlings for one horizontal row are planted in the field with the seedling mounting table 51 equipped with a seedling feeding belt for supplying the lower seedling receiving plate 58, and the seedlings supplied to the seedling outlet with the seedling planting tool 52a. It is provided with a seedling planting device 52 ..., a pair of left and right line drawing markers 53, 53, etc., which draw a line on the surface soil surface of the aircraft course in the next process. A center float 55 is provided in the center of the lower part of the seedling planting portion 4, and side floats 56 and 56 are provided on both left and right sides thereof.

When the aircraft is advanced with these floats 55, 56, and 56 grounded on the mud surface of the field, the float slides while leveling the mud surface, and the seedling planting device 52 ... It is planted. The floats 55, 56, and 56 are rotatably attached so that the front end side moves up and down according to the unevenness of the surface soil surface of the field, and the front part of the center float 55 moves up and down during the seedling planting work. A hydraulic valve that is detected by the vertical movement detection mechanism 57, the detection result is input to a control device (not shown in FIGS. 1 and 2), and the raising / lowering hydraulic cylinder 46 is controlled by the raising / lowering means of the seedling planting portion. By switching (not shown in FIGS. 1 and 2) and raising and lowering the seedling planting portion 4, the seedling planting depth is always maintained constant.

The fertilizer application device 5 delivers a fixed amount of granular fertilizer stored in each of the six fertilizer hoppers 60 by each feeding case 61, and feeds the delivered fertilizer through a connecting pipe (shown in FIGS. 1 and 2). No) and the fertilizer hose 70 lead to the fertilizer guides 63 attached to the left and right sides of the floats 55, 56, 56, and the seedling planting strips are provided by the groove-growing body (grooving device) 64 ... provided on the front side of the fertilizer guide 63. It is configured to drop the fertilizer formed near the side of the fertilizer into the fertilizer groove that permeates the field.

Although not shown, the groove body 64 is provided with a supply detection sensor that detects whether or not fertilizer is being supplied, and when the supply detection sensor does not detect the supply of fertilizer, the wheels 10 and 11 are used. It is configured so as not to allow the traveling vehicle body 2 to move forward by locking or the like.

Further, the air generated by the blower 67 driven by the electric motor 66 is blown into each connecting pipe via the air chamber 68 which is long in the left-right direction, and the fertilizer in each connecting pipe is directed toward each fertilizer application guide 63. , It is configured to be forcibly conveyed by wind pressure via the fertilizer hose 70. Here, the electric motor 66 for driving the blower 67 is configured to be able to be operated and stopped by turning on / off the blower switch SW1 provided on the operation panel portion arranged below the steering wheel 34. .. That is, when the blower switch SW1 is turned on, the electric motor operating means of the control device (not shown in FIGS. 1 and 2) energizes the electric motor 66, the electric motor 66 rotates, and the blower 67 is moved. Operate. Further, when the blower switch SW1 is turned off, the electric motor operating means of the control device cuts off the energization of the electric motor 66, the rotation of the electric motor 66 is stopped, and the operation of the blower 67 is also stopped.

FIG. 3 is a substantially left side view showing the details of the fertilizer application device 5.

The fertilizer application device 5 is provided with a total of six removable fertilizer hoppers 60 for storing fertilizer in the upper part for each row. The fertilizer hopper 60 is provided with a lid member 60a that is opened when fertilizer is stored in the fertilizer hopper 60.

As shown in FIG. 3, a fertilizer discharge port 100 is formed in the lower part of each fertilizer hopper 60, and a feeding case 61 is provided in the vicinity of the lower part of the fertilizer discharge port 100. The feeding case 61 is provided with a feeding roll 101 for receiving fertilizer falling from the fertilizer discharging port 100 and feeding the fertilizer, and a feeding shaft 102 for rotatably supporting the feeding roll 101, and further opens and closes the fertilizer discharging port 100. A shutter 110 is provided.

As shown in FIG. 3, a fertilizer supply port 103 is formed in the lower part of the feeding case 61, and the fertilizer supply port 103 opens in a connecting pipe 62 extending in the front-rear direction.

The rear end of the connecting pipe 62 is connected to one end of the fertilizer hose 70 having a spiral groove formed on the outer periphery, and the front end of the connecting pipe 62 opens in the air chamber 68, and the opening of the connecting pipe 62. A disk-shaped lid member 130 is slidably arranged in the 62a, and the opening 62a is opened and closed by sliding the lid member 130.

Although not shown, all the connecting pipes 62 of the six fertilizer hoppers 60 are open in the air chamber 68.

In FIG. 3, reference numeral 128 indicates a fertilizer recovery pipe that discharges and collects fertilizer from the machine, and the fertilizer recovery pipe 128 that discharges fertilizer from each fertilizer hopper 60 communicates with each other. ..

In the present embodiment, by operating the switching operation lever (not shown), the operation mode of the fertilizer application device 5 is set, and the fertilizer stored in the fertilizer hopper 60 is transferred to the fertilizer application hose 70 via the connecting pipe 62. It is configured so that the fertilizer application mode to be supplied and the fertilizer recovery mode in which the fertilizer stored in the fertilizer hopper 60 is recovered to the outside of the machine via the fertilizer recovery pipe 128 can be selectively switched. ..

Although not shown, the float 55 includes the other end of the fertilizer application hose 70 and the fertilizer application guide 63 ... Which forms a fertilizer application groove (not shown) near the seedling planting position by the seedling planting unit 4. , 56, 56.

The rotational force of the drive shafts (not shown) of the rear wheel gear cases 18 and 18 is transmitted to the feed shaft 102 that rotatably supports the feed roll 101 via the drive force transmission member (not shown) and the gear 122. The feeding shaft 102 is configured to be rotatable at a constant interlocking ratio with respect to the rotation of the front wheels 10, 10 and the rear wheels 11, 11.

A plurality of feeding grooves 101a are formed in the feeding roll 101, and the feeding roll 101 receives and stores fertilizer from the fertilizer hopper 60 through the fertilizer discharge port 100 in the feeding groove 101a, and receives and stores the fertilizer in the feeding groove 101a. As the fertilizer rotates, the fertilizer contained in the feeding groove 101a is supplied to the connecting pipe 62 via the fertilizer supply port 103.

FIG. 4 is a schematic cross-sectional view of the fertilizer hopper 60 and the feeding case 61 in the vicinity of the shutter 110, and FIG. 5 is a schematic perspective view of the shutter mechanism including the shutter 110.

As shown in FIGS. 4 and 5, the shutter mechanism 150 includes a rectangular parallelepiped frame body 151, a fertilizer discharge port 100 formed on the bottom surface of the frame body 151 in the front-rear direction, and a front wall 151a of the frame body 151. The slit 152a formed in the frame 151 and the slit 152b formed in the rear wall 151b of the frame body 151 are provided.

As shown in FIGS. 4 and 5, the shutter 110 has a flat plate shape and is configured to be slidable in the front-rear direction through the slits 152a and 152b formed in the frame 151.

The slit 110 is formed with an opening 111 that is larger than the fertilizer discharge port 100 and is long in the front-rear direction.

The shutter 110 is configured to be slidable by a shutter driving member (not shown).

A grip portion 116 that can be gripped by an operator is formed at the front end portion of the shutter 110, and the flat plate portion 112 is provided with a screw portion 115 that protrudes upward immediately after the opening 111.

As described above, the shutter 110 is configured to be slidable by the shutter drive member, but when the manual mode is set, the grip portion 116 can be gripped and slid by the operator.

As shown in FIGS. 4 and 5, the shutter 110 is slid to the rear side (right side in FIGS. 4 and 5) indicated by the arrow B, and the fertilizer discharge port 100 is opened by the opening 111 of the shutter 110. When fully opened, the threaded portion 115 formed on the shutter 110 comes into contact with the rear wall 151b of the frame 151, and the shutter 110 cannot be moved further rearward.

On the other hand, when the shutter 110 is slid to the front side (left side in FIGS. 4 and 5) indicated by the arrow A and the screw portion 115 abuts on the front wall 151a of the frame body 151, the flat plate portion 112 of the shutter 110 The fertilizer discharge port 100 is completely closed, and the communication between the inside of the fertilizer hopper 60 and the inside of the feeding case 61 is cut off.

Therefore, during the fertilizer application operation, the shutter driving member or the operator grips the grip portion 116 so that the shutter 110 is located at the position where the opening 111 of the shutter 110 includes the fertilizer discharge port 100 in FIGS. 4 and 5. When pushed to the right side (front side of the work vehicle) indicated by the arrow B, the fertilizer discharge port 100 is opened, and when the screw portion 115 comes into contact with the rear wall 151b of the frame 151, the shutter 110 is further moved to the right side. The shutter 110 is stopped in a state where the fertilizer discharge port 100 is opened.

On the other hand, when the fertilizer application operation is stopped, the shutter 110 is moved to the left side (front side) indicated by the arrow A in FIGS. 4 and 5 by the shutter driving member or by the operator, and the flat plate portion of the shutter 110 is stopped. When the fertilizer discharge port 100 is closed by 112 and the screw portion 115 comes into contact with the front wall 151a of the frame body 151, the flat plate portion 112 of the shutter 110 completely closes the fertilizer discharge port 100 and the shutter 110 is stopped. ..

FIG. 6 is a schematic plan view of the vicinity of the blower 67.

As shown in FIG. 6, the air chamber 68 in which the connecting pipe 62 of each fertilizer chamber 60 opens and the fertilizer recovery pipe 128 for discharging fertilizer from each fertilizer chamber 60 are merged by the air switching pipe 135 and are combined with each other by the air switching pipe 135. 135 is connected to the blower 67. An air switching shutter 86 for selectively connecting the air chamber 68 and the fertilizer recovery pipe 128 to the blower 67 is provided in the air switching pipe 135.

As described above, in the present embodiment, the fertilizer stored in the fertilizer hopper 60 is supplied to the fertilizer hose 70 via the connecting pipe 62 by operating the switching operation lever (not shown). It is configured so that the mode and the fertilizer recovery mode in which the fertilizer stored in the fertilizer hopper 60 is recovered to the outside of the machine via the fertilizer recovery pipe 128 can be selectively switched.

When the fertilizer application mode in which the fertilizer stored in the fertilizer hopper 60 is supplied to the fertilizer application hose 70 via the connection pipe 62 is selected by the switching operation lever, the air chamber 68 and the blower 67 are communicated with each other. The air switching shutter 86 is switched, and as described above, the air generated by the blower 67 driven by the electric motor 66 is blown into each connecting pipe 62 via the air chamber 68, and the air in each connecting pipe 62 is blown into each connecting pipe 62. The fertilizer is forcibly conveyed by wind pressure toward each fertilizer guide 63 via the fertilizer hose 70.

On the other hand, when the fertilizer recovery mode for recovering the fertilizer stored in the fertilizer hopper 60 to the outside of the machine via the fertilizer recovery pipe 128 is selected by the switching operation lever, the fertilizer recovery pipe 128 and the blower 67 are engaged. The air switching shutter 86 can be switched so as to communicate with each other. When the switching operation lever is switched to the fertilizer recovery mode, the shutter drive member (not shown) is operated. Initially, the shutter 110 is partially opened, and when the switching to the fertilizer recovery mode of the switching operation lever is completed, the shutter 110 Is completely opened.

As a result, the air generated by the blower 67 driven by the electric motor 66 is supplied to the fertilizer recovery pipe 128, and the fertilizer in the fertilizer recovery pipe 128 is discharged to the outside of the machine and recovered.

Here, when the switching operation lever is switched to the fertilizer recovery mode, the shutter 110 is initially configured to partially open the fertilizer hopper 60 when the switching operation lever is switched to the fertilizer recovery mode. This is to prevent the fertilizer stored in the fertilizer from falling into the feeding case 61 at once, clogging the fertilizer recovery pipe 128, and interrupting the fertilizer recovery work, and the switching to the fertilizer recovery mode of the switching operation lever is completed. Then, the reason why the shutter 110 is configured to be completely opened is to improve the work efficiency.

FIG. 7 is a block diagram showing a control system, a detection system, and a drive system of the fertilizer application device 5 of the seedling transplanter according to the preferred embodiment of the present invention.

As shown in FIG. 7, the control system of the fertilizer application device 5 includes a controller 300 that controls the operation of the fertilizer application device 5 as a whole, a ROM 301 that stores a control program of the fertilizer application device 5, and a RAM 302 that stores various data. There is.

As shown in FIG. 7, the detection system of the fertilizer application device 5 detects the water temperature of the field in the front wheel portion, and outputs a water temperature detection signal indicating the detected value of the water temperature in the field of the front wheel portion to the controller 300 together with the water temperature sensor 305. , The water depth sensor 306 that detects the water depth of the field of the front wheel part and outputs the water depth detection signal indicating the detected value of the water depth of the field of the front wheel part to the controller 300, and detects the load applied to the fertilizer transmission mechanism 27 to detect the load. It includes a load sensor 307 that outputs a signal to the controller 300.

As shown in FIG. 7, the drive system of the fertilizer application device 5 includes a transmission 310, an output control means (HST servomotor) 312 that increases or decreases the output of the transmission 310, and a delivery roller drive motor that rotates the delivery roller 101. It includes a 314, a shutter drive member 316 that drives the shutter 110, and a fertilizer application amount adjusting device 318 that controls the feeding roller drive motor 314 and the shutter drive member 316.

The first memory area of the RAM 302 stores the fertilizer application amount Q0 at each time point supplied to the field of the front wheel portion, and the second memory area of the RAM 302 stores the water temperature detection detected by the water temperature sensor 305. Data, water depth detection data detected by the water depth sensor 306, and load detection data detected by the load sensor 307 are stored. Further, in the third memory area of the RAM 302, a table that defines how the fertilizer application amount should be set based on the water temperature detection data and a table that defines how the fertilizer application amount should be set based on the water depth detection data. And a table that defines how to set the fertilizer application amount based on the load detection data are stored.

Further, in the fourth memory area of the RAM 302, a threshold value ΔQth used for determining whether or not the amount of fertilizer applied to the field has changed significantly is stored.

FIG. 8 is a flowchart of fertilizer application amount control executed by the fertilizer application device 5 of the seedling transplanter according to the preferred embodiment of the present invention configured as described above.

First, the water temperature detection data detected by the water temperature sensor 305, the water depth detection data detected by the water temperature sensor 305, and the load detection data detected by the load sensor 307 are input to the controller 300, respectively (step S1).

The controller 300 stores the input water temperature detection data, water depth detection data, and load detection data in the second memory area of the RAM 302, and the fertilizer application amount is based on the water temperature detection data stored in the third memory area of the RAM 302. A table that defines how to set the fertilizer amount, a table that defines how the fertilizer application amount should be set based on the water depth detection data, and a load detection data that defines how the fertilizer application amount should be set. Based on the table, the fertilizer application amount Q to be applied to the field is calculated (step S2).

Next, the controller 300 determines the absolute value of the difference between the fertilizer application amount Q to be applied to the field thus calculated and the fertilizer application amount Q0 currently applied to the field stored in the first memory area of the RAM 302. Q-Q0 | is obtained and compared with the threshold value ΔQth stored in the fourth memory area of the RAM 302 (step S3).

As a result, when the absolute value | Q-Q0 | is less than the threshold value ΔQth, the controller 300 uses the feeding roller drive motor 314 and the shutter so that the fertilizer of the calculated fertilizer application amount Q is applied to the field. The drive member 316 is controlled (step S4).

On the other hand, when the absolute value | Q-Q0 | is equal to or higher than the threshold value ΔQth, if the fertilizer of the fertilizer application amount Q is supplied to the field as it is, an overload is applied to the fertilizer transmission transmission mechanism 27, and the fertilizer application transmission mechanism Since the durability of the 27 is lowered and the fertilizer transmission mechanism 27 may be damaged in some cases, the controller 300 outputs an output reduction signal to the output control means (HST servomotor) 312, and the transmission 310 Output is reduced (step S5).

As a result, the vehicle speed is reduced, and the transmission speed at which the fertilizer transmission mechanism 27 transmits the transmission power to the fertilizer application device 5 is reduced, so that it is possible to effectively prevent an overload from being applied to the fertilizer application transmission mechanism 27. Become.

FIG. 9 is a flowchart of fertilizer application amount control executed by the fertilizer application device 5 of the seedling transplanter according to another preferred embodiment of the present invention.

First, the water temperature detection data, the water depth detection data, and the load detection data are input to the controller 300, respectively (step SS1).

Next, the controller 300 calculates the fertilizer application amount Q of the fertilizer to be applied to the field in the same manner as in the above embodiment (step SS2).

After that, the controller 300 determines the absolute value of the difference between the fertilizer application amount Q to be applied to the field thus calculated and the fertilizer application amount Q0 currently applied to the field stored in the first memory area of the RAM 302. Q-Q0 | is obtained and compared with the threshold value ΔQth stored in the fourth memory area of the RAM 302 (step SS3).

As a result, when the absolute value | Q-Q0 | is less than the threshold value ΔQth, the controller 300 drives the feeding roller drive motor 314 and the shutter drive so that the fertilizer of the calculated fertilizer application amount Q is applied to the field. The member 316 is controlled (step SS4).

On the other hand, when the absolute value | Q-Q0 | is equal to or higher than the threshold value ΔQth, if the fertilizer of the fertilizer application amount Q is supplied to the field as it is, an overload is applied to the fertilizer application transmission mechanism 27, and the fertilizer application transmission mechanism Since the durability of the fertilizer application 27 is lowered and the fertilizer application transmission mechanism 27 may be damaged in some cases, the controller 300 outputs a drive signal to the fertilizer application amount adjusting device 318 and also outputs an operation time extension signal ( Step SS5).

As a result, the time for driving the feeding roller drive motor 314 and the shutter drive member 316 by the fertilizer application amount adjusting device 318 is extended, and the change in the amount of fertilizer applied from the fertilizer hopper 60 to the field becomes gradual. It is possible to effectively prevent an overload from being applied to the mechanism 27.

FIG. 10 is a substantially vertical cross-sectional view of the vicinity of the fertilizer hopper of the fertilizer application device of the seedling transplanting machine according to another preferred embodiment of the present invention.

As shown in FIG. 10, in the present embodiment, the net member 400 is provided above the fertilizer discharge port 100 inside each fertilizer hopper 60. As will be described later, since the net member 400 is configured to be moved substantially horizontally in the left-right direction in FIG. 10, between the left-right end portions 410 and 411 of the net member 400 and the inner wall 420 of the fertilizer hopper 60. Is provided with a gap portion 425.

FIG. 11 is a block diagram showing a control system, a detection system, and a drive system of a fertilizer application device of a seedling transplanter according to another preferred embodiment of the present invention shown in FIG.

As shown in FIG. 11, the control system of the fertilizer application device 5 includes a controller 300 that controls the operation of the fertilizer application device 5 as a whole, a ROM 301 that stores a control program of the fertilizer application device 5, and a RAM 302 that stores various data. There is.

As shown in FIG. 11, the detection system of the fertilizer application device 5 detects the water temperature of the field in the front wheel portion, and outputs a water temperature detection signal indicating the detected value of the water temperature in the field of the front wheel portion to the controller 300 together with the water temperature sensor 305. , The water depth sensor 306 that detects the water depth of the field of the front wheel part and outputs the water depth detection signal indicating the detected value of the water depth of the field of the front wheel part to the controller 300, and detects the load applied to the fertilizer transmission mechanism 27 to detect the load. It includes a load sensor 307 that outputs a signal to the controller 300.

As shown in FIG. 11, the drive system of the fertilizer application device 5 includes a transmission 310, an output control means (HST servomotor) 312 that increases or decreases the output of the transmission 310, and a delivery roller drive motor that rotates the delivery roller 101. 314, a shutter drive member 316 that drives the shutter 110, a fertilizer application amount adjusting device 318 that controls the feeding roller drive motor 314 and the shutter drive member 316, and a motor 430 that moves the net member 400 substantially horizontally in the left-right direction in FIG. It has.

Also in this embodiment, the absolute value of the difference between the fertilizer application amount Q to be applied to the field and the fertilizer application amount Q0 currently applied to the field stored in the first memory area of the RAM 302 by the controller 300. | QQ0 | is obtained and compared with the threshold value ΔQth stored in the fourth memory area of the RAM 302.

As a result, when the absolute value | Q-Q0 | is equal to or less than the threshold value ΔQth, the controller 300 drives the feeding roller drive motor 314 and the shutter so that the fertilizer of the calculated fertilizer application amount Q is applied to the field. Controls member 316.

On the other hand, when the absolute value | Q-Q0 | exceeds the threshold value ΔQth, if the fertilizer of the fertilizer application amount Q is supplied to the field as it is, an overload is applied to the fertilizer transmission transmission mechanism 27 and the fertilizer application transmission is transmitted. Since the durability of the mechanism 27 is lowered and the fertilizer transmission mechanism 27 may be damaged in some cases, the controller 300 outputs a drive signal to the motor 430 to move the net member 400 in the left-right direction in FIG. It is moved almost horizontally.

As a result, the fertilizer gradually falls from the fertilizer hopper 60 into the feeding case 61 via the net member 400, and therefore, it is possible to effectively prevent the fertilizer transmission mechanism 27 from being overloaded. It will be possible.

FIG. 12 is a substantially vertical cross-sectional view of the vicinity of the fertilizer hopper of the fertilizer application device of the seedling transplanting machine according to another preferred embodiment of the present invention.

As shown in FIG. 12, also in this embodiment, the net member 450 is provided above the fertilizer discharge port 100 inside each fertilizer hopper 60. As will be described later, since the net member 450 is configured to be moved up and down in FIG. 12, the lateral ends 460 and 461 of the net member 450 are located in the vicinity of the inner wall 420 of the fertilizer hopper 60. ..

FIG. 13 is a block diagram showing a control system, a detection system, and a drive system of a fertilizer application device of a seedling transplanter according to another preferred embodiment of the present invention shown in FIG.

As shown in FIG. 13, the control system of the fertilizer application device 5 includes a controller 300 that controls the operation of the fertilizer application device 5 as a whole, a ROM 301 that stores a control program of the fertilizer application device 5, and a RAM 302 that stores various data. There is.

As shown in FIG. 13, the detection system of the fertilizer application device 5 detects the water temperature of the field in the front wheel portion, and outputs a water temperature detection signal indicating the detected value of the water temperature in the field of the front wheel portion to the controller 300 together with the water temperature sensor 305. , The water depth sensor 306 that detects the water depth of the field of the front wheel part and outputs the water depth detection signal indicating the detected value of the water depth of the field of the front wheel part to the controller 300, and detects the load applied to the fertilizer transmission mechanism 27 to detect the load. It includes a load sensor 307 that outputs a signal to the controller 300.

As shown in FIG. 13, the drive system of the fertilizer application device 5 includes a transmission 310, an output control means (HST servomotor) 312 that increases or decreases the output of the transmission 310, and a delivery roller drive motor that rotates the delivery roller 101. It includes a shutter drive member 316 that drives the shutter 110, a fertilizer application amount adjusting device 318 that controls the feeding roller drive motor 314 and the shutter drive member 316, and a vertical movement motor 480 that moves the net member 450 up and down.

Also in this embodiment, the absolute value of the difference between the fertilizer application amount Q to be applied to the field and the fertilizer application amount Q0 currently applied to the field stored in the first memory area of the RAM 302 by the controller 300. | QQ0 | is obtained and compared with the threshold value ΔQth stored in the fourth memory area of the RAM 302.

As a result, when the absolute value | Q-Q0 | is equal to or less than the threshold value ΔQth, the controller 300 drives the feeding roller drive motor 314 and the shutter so that the fertilizer of the calculated fertilizer application amount Q is applied to the field. Controls member 316.

On the other hand, when the absolute value | Q-Q0 | exceeds the threshold value ΔQth, if the fertilizer of the fertilizer application amount Q is supplied to the field as it is, the fertilizer application transmission mechanism 27 is overloaded and the fertilizer application transmission is transmitted. Since the durability of the mechanism 27 is lowered and the fertilizer transmission mechanism 27 may be damaged in some cases, the controller 300 outputs a drive signal to the vertical movement motor 480 to move the net member 450 up and down.

As a result, the fertilizer gradually falls from the fertilizer hopper 60 into the feeding case 61 via the net member 450, and therefore, it is possible to effectively prevent the fertilizer transmission mechanism 27 from being overloaded. It will be possible.

FIG. 14 is a schematic vertical cross-sectional view of the vicinity of the fertilizer hopper of the fertilizer application device of the seedling transplanting machine according to still another preferred embodiment of the present invention.

As shown in FIG. 14, in the present embodiment, the lid member 60a of the fertilizer hopper 60 is swingably attached around a swing shaft 500 provided at the rear end of the fertilizer hopper 60. When the lid member 60a is closed, the tip of the rotating rod 501 is attached to the rear end of the lid member 60a located behind the swing shaft 500, and the lower end of the rotating rod 501 and the net member 400 are attached. The rear end portion 400a is connected by a rotating link arm 502.

Therefore, according to the present embodiment, when the lid member 60a of the fertilizer hopper 60 is swung around the swing shaft 500 and opened for the purpose of replenishing the fertilizer hopper 60 with fertilizer, the net member 400 moves back and forth. As a result, it is possible to prevent the fertilizer from agglomerating due to its own weight, and it is possible to maintain the fertilizer in a state in which it is easy to fall.

FIG. 15 is a schematic vertical cross-sectional view of the vicinity of the fertilizer hopper of the fertilizer application device of the seedling transplanting machine according to still another preferred embodiment of the present invention.

As shown in FIG. 15, in the present embodiment, the movable net member 510 is placed on the upper part of the net member 400 whose position is fixed in the fertilizer hopper 60 of the fertilizer application device 5. .. Also in this embodiment, similarly to the fertilizer hopper of the fertilizer application device of the seedling transplanting machine shown in FIG. 14, the lid member 63a of the fertilizer hopper 60 is around the swing shaft 500 provided at the rear end of the fertilizer hopper 60. When the lid member 60a is closed, the tip of the rotating rod 501 is attached to the rear end of the lid member 60a located behind the swinging shaft 500. The lower end of 501 and the rear end 510a of the movable net member 510 are connected by a rotating link arm 502.

Therefore, according to the present embodiment, when the lid member 60a of the fertilizer hopper 60 is swung around the swing shaft 500 and opened for the purpose of replenishing the fertilizer hopper 60 with fertilizer, the net member 510 moves back and forth. As a result, the opening of the net member 400 and the opening of the movable net member 510 overlap each other, and the fertilizer placed on the upper surface of the net member 510 can be dropped as desired. ..

FIG. 16 is a schematic vertical cross-sectional view of the vicinity of the fertilizer hopper of the fertilizer application device of the seedling transplanting machine according to still another preferred embodiment of the present invention.

As shown in FIG. 16, in the present embodiment, the net member 400 is configured to be movable, and the upper link 40 of the elevating link device 3 and the rear end portion of the movable net member 400 are connected to the rotating link arm 502. And are connected by wire 512.

Therefore, according to the present embodiment, the net member 400 is moved in the front-rear direction in conjunction with the elevating operation of the elevating link device 3, and as a result, the fertilizer placed on the upper surface of the net member 400 is self-weighted. It is prevented from becoming a lump and can be dropped as desired.

FIG. 17 is a substantially vertical cross-sectional view of the vicinity of the groove-growing device 64 of the fertilizer application device of the seedling transplanter according to still another preferred embodiment of the present invention.

As shown in FIG. 17, in the present embodiment, the presence or absence of the passage of the fertilizer application guide 63 supplied from the fertilizer application device 5 is detected between the fertilizer application hose 70 of the fertilizer application device 5 and the fertilizer outlet 530. A grain sensor 540 is provided.

FIG. 18 is a block diagram showing a method of processing a fertilizer detection signal of the grain loss sensor 540.

As shown in FIG. 18, the fertilizer detection signal of the grain loss sensor 540 is input to the controller 300. When the fertilizer detection signal is not input from the grain loss sensor 540, the controller 300 stops the operation of the output control means 312 for changing the output of the transmission 310, and the fertilizer detection signal is input from the grain loss sensor 540. For the first time, it is configured to allow the operation of the output control means 312 and change the output of the transmission 310.

Since the fertilizer delivered from the fertilizer application device moves via the fertilizer application hose 62, it takes a certain amount of time to pass through the fertilizer application guide 63 and be supplied to the field. At the same time, a signal for changing the output is output from the output control means 312 to the transmission 310. At that time, the planting device starts planting the seedlings and the traveling vehicle body 2 starts planting. When the running is started and fertilizer is supplied to the field, the traveling vehicle body 2 is already advanced, so that the seedlings near the start of planting are not supplied with fertilizer, and the growth is delayed only in that part due to the lack of fertilizer. There's a problem.

However, according to this embodiment, since the fertilizer is detected by the grain loss sensor 540 and the planting of the seedlings and the advancement of the traveling vehicle 2 start only after the fertilizer arrives at the field, the fertilizer is also supplied to the seedlings at the beginning of planting. Therefore, it becomes possible to align the growth of seedlings throughout the field.

19 to 21 will be described. As shown in FIG. 19, when the fertilizer application hose 70 is clogged with fertilizer or the groove making device 64 is clogged with soil or fertilizer in the field, the blower 67 and the feeding roll 101 are damaged and the flow of the transport wind is stopped. In order to prevent this, the fertilizer application hose 70 is provided with a discharge route HK which is a different route from the route for guiding the groover 64 side. Note that FIG. 19 is shown in the left-right direction of the fertilizer application hose 70 so that the discharge path HK can be easily understood.

Further, the fertilizer hose 70 has a different shape because the second and third fertilizer hose 70s from the right have a lateral feed device for the seedling mounting table 51 in a plan view of the machine body, but the discharge paths HK are all common.

This discharge path HK is located on the front side of the machine body of the fertilizer application hose 70, and the discharge port HD for discharging the fertilizer guided by the discharge path HK is suitable for the field scene. That is, the discharge port HD is arranged toward the lower side of the machine body.

By directing the discharge port HD to the field scene, it is possible to spray fertilizer that could not be normally sprayed on the field, and it is possible to prevent the fertilizer from adhering to the machine body and the seedling planting portion 4 and rusting.

The discharge path HK is provided above the leveling float (55,56), and the discharge path HK is arranged so that the discharge port HD is in the vicinity of the leveling rotor SL.

Therefore, the leveling float (55, 56) serves as a guard member for the discharge path HK, and the seedling planting portion 4 can be raised and lowered to prevent contact with the field and the ground.

The discharge route HK will be described in detail. The outlets HK are configured to be arranged in a substantially row in the left-right direction of the aircraft. The discharge path HK provided in the fertilizer application hose 70 connected to the groove making device 64 provided in the center float 55 has the discharge port HD located above the center float 55 in the side view of the machine body, and the center float 55 in the plan view of the machine body. The outlet HD is configured to be located between the adjacent side floats.

There is a part that is constricted in the shape of the center float 55 in the plan view of the aircraft, and the discharge port HD is located above the constricted part.

The discharge path HK provided in the fertilizer application hose 70 connected to the groove making device 64 provided in the side float 56 has the discharge port HD located in front of the side float 56 in the side view of the machine body, and the side float 56 in the plane view of the machine body. The outlet HD is located within the range where the hose is leveled.

Further, the discharge path HK is arranged so that the discharge port HD is located at a position where the front, rear, left, and right sides of the machine body are deviated from each other in the positional relationship with the groove making device 64.

Further, the discharge port HD is located below the strong main frame MF constituting the seedling planting portion 4 and the mudguard cover DK of the ground leveling rotor SL. That is, the mainframe MF and the mudguard cover DK do not adhere to the fertilizer. Therefore, it is possible to prevent the seedling planting portion 4, the link, and the like from rusting, which leads to deterioration of maintainability and prevention of damage due to rust.

Further, the discharge path HK arranged in the side float 56 is arranged so as to pass between the main frame MF and the mudguard cover DK, and is sandwiched between the main frame MF and the mudguard cover DK and simply fixed. Has been done. The discharge path HK arranged in the center float 55 is fixed to the main frame MF.

Further, a curved portion WK having a curved shape is formed on the upstream side of the discharge path HK. The curved portion WK is curved to guide the discharge path HK connected to the lower side of the machine body so as to go in a direction substantially opposite to the direction guided by the fertilizer application hose 70. Therefore, the fertilizer guided to the fertilizer application hose 70 is not always guided to the discharge path HK, and when the groove making device 64 side is clogged, the fertilizer is guided to the discharge path HK.

Further, regarding the arrangement of the discharge port HD, it may be in front of the leveling rotor SL or behind the discharge path HK. Further, the outlet HD may be provided at the same position as the groove making device 64 in the front-rear direction and the left-right direction of the machine body.

Further, the discharge port HD may be provided directly above the leveling float (55, 56). The fertilizer deposited on the leveling float (55,56) can be washed away by the running field water.

Further, the discharge port HD may be provided with an auxiliary groove making device so that when the fertilizer application hose 70 is clogged, normal fertilizer application work can be performed via the discharge path HK.

Further, regarding the arrangement of the discharge path HK, the discharge path HK may be provided in the left-right direction or the rear of the fertilizer application hose 70.

The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

1 Seedling transplanter 2 Traveling vehicle body 3 Lifting link device 4 Seedling planting part 5 Fertilizer application device 10 Front wheel 11 Rear wheel 12 Mission case 13 Front wheel final case 15 Main frame 18 Rear wheel gear case 21 First belt transmission device 23 Second belt transmission device 25 Planting clutch case 26 Planting transmission shaft 27 Fertilization transmission mechanism 30 Engine cover 31 Seat 32 Front cover 34 Steering wheel 35 Floor step 36 Rear step 38 Spare seedling stand 40 Top link 41 Bottom link 42 Link base frame 43 Vertical link 44 Connecting shaft 45 Swing arm 46 Lifting hydraulic cylinder 50 Transmission case 51 Seedling stand 51a Seedling outlet 51b Seedling feeding belt 52 Seedling planting device 52a Seedling planting tool 53 Draw marker 55 Center float (ground leveling float)
56 Side float (leveling float)
58 Seedling receiving plate 60 Fertilizer hopper 60a Cover member 61 Feeding case 62 Connecting pipe 62a Opening 63 Fertilizer application guide 64 Groove body 66 Electric motor 67 Blower 68 Air chamber 70 Fertilizer application hose 100 Fertilizer outlet 101 Feeding roll 101a Feeding groove 102 103 Fertilizer supply port 110 Shutter 111 Opening 112 Flat plate 115 Threaded 116 Grip 122 Gear 128 Fertilizer recovery pipe 130 Cover member 150 Shutter mechanism 151 Frame 151a Front wall 151b Rear wall 152a, 152b Slit 300 Controller 301 ROM
302 RAM
305 Water temperature sensor 306 Water depth sensor 307 Load sensor 310 Transmission device 312 Output control means (HST servo motor)
314 Feeding roller drive motor 316 Shutter drive member 318 Fertilizer application amount adjustment device 400 Net member 410,411 Left and right end of net member 420 Inner wall of fertilizer hopper 425 Gap 430 Motor 450 Net member 460, 461 Left and right end of net member End 480 Vertical movement motor 500 Swing shaft 501 Rotating rod 502 Rotating link arm 510 Movable net member 510a Rear end of net member 512 Wire 530 Fertilizer outlet 540 Grain-free sensor HK Discharge route HD Discharge port SL Ground leveling rotor WK Curved part MF Main frame DK Mudguard cover

Claims (8)

The seedling planting part (4) is mounted on the rear part of the traveling vehicle body (2) so as to be able to move up and down, and the fertilizer tank (60) and the fertilizer feeding portion (100) of the fertilizer applying device (5) are attached to the rear part of the traveling vehicle body (2). Seedling transplantation with a fertilizer application device provided with a fertilizer guide unit (70) that is attached and pumps the fertilizer discharged from the fertilizer feeding unit (100) by the pressure air of the blower (67) to guide it to the groove making device (64). In the machine
The fertilizer guide unit (70) is provided with a discharge route (HK) that is different from the route that guides the groover (64), and when the route that guides the groover (64) is clogged, the discharge route is blocked. A seedling transplanting machine with a fertilizer application device, characterized in that fertilizer is guided to (HK) by the pressure air. The fertilizer application device according to claim 1, wherein a discharge port (HD) is provided on the lower side of the discharge path (HK) in the transport direction, and the discharge port (HD) is arranged toward the farm scene. Seedling transplanter with seedlings. The seedling with a fertilizer application device according to claim 2, wherein the discharge port (HD) is located on the front side of the machine body from the groove making device (64) and above the machine body from the groove making device (64). Transplant machine. The seedling planting portion (4) is provided with a ground leveling float and a ground leveling rotor (SL) for leveling the field scene, the discharge path (HK) is located above the ground leveling float, and the discharge port (HD) is. The seedling transplanting machine with a fertilizer application device according to any one of claims 1 to 3, wherein the seedling transplanting machine is located in the vicinity of a leveling rotor (SL). The seedling transplanting machine with a fertilizer application device according to claim 4, wherein the discharge port (HD) is located behind the ground leveling rotor (SL) and in front of the fertilizer guide portion (70). The fertilizer application according to any one of claims 1 to 5, wherein the discharge route (HK) is curved so that the fertilizer is preferentially guided to the groove making device (64) side. Seedling transplanter with equipment. A curved portion (WK) having a curved shape is formed on the upstream side of the discharge path (HK), and the curved portion (WK) is characterized in that it has a shape from the upper side of the machine body to the lower side. The seedling transplanting machine with a fertilizer application device according to any one of claims 1 to 6. The planting device (4) is provided with a strongly configured main frame (MF) that supports the seedling planting portion (4) and a mudguard cover (DK) that prevents mud from scattering due to the operation of the ground leveling rotor (SL). The discharge path (HK) is a path that passes between the main frame (MF) and the mudguard cover (DK), and the airframe is provided from the mainframe (MF) and the mudguard cover (DK). The seedling transplanting machine with a fertilizer application device according to any one of claims 4 to 7, wherein the discharge port (HD) is located below.

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