KR101363949B1 - Working vehicle - Google Patents

Abstract

Provided is a work vehicle having a fertilizer device having a simple configuration, which can adjust the fertilization amount at high speed and finely.
Install a fertilizer (5) for feeding fertilizer on the vehicle body, install an adjusting motor (6) for adjusting the amount of fertilizer supplied from the fertilizer (5), and rotate when the regulating motor (6) is operated. A spiral shaft (7) to be installed, and a first pivot support shaft (106) for supporting the spiral shaft (7) and the regulating motor (6) so as to be rotatable, and by the rotation of the spiral shaft (7), (7) to install the connecting pin 49 to move along, connect the linking arm 43 to the connecting pin 49, install the adjusting shaft to rotate in conjunction with the rotation of the linking arm 43, The control part which changes the quantity of the fertilizer supplied from the fertilizer 5 by rotation is provided, the motor cover 103 which incorporates the control motor 6 is installed, and the motor cover 103 and the traveling vehicle body 2 are provided. The 1st elastic member 101 for shock absorption is provided in between) and is comprised.

Description

Working vehicle {WORKING VEHICLE}

The present invention relates to a work vehicle provided with a fertilizing device having a simple configuration capable of adjusting the fertilization amount at high speed and finely.

As a conventional seedling planting machine, there is known a technique (for example, refer to Patent Document 1 below) that changes the fertilization amount in response to a change in the traveling speed by configuring the control shaft of the fertilization amount adjusting mechanism to be rotatable by an electric motor capable of forward and reverse rotation.

Japanese Patent No. 3641102

According to the said patent document 1, the structure which controls an electric motor in accordance with the shift of a traveling speed, changes the operation speed of a take-out roll, and changes the corresponding fertilization amount is disclosed.

At this time, if the rotational speed of the electric motor is slow, the time lag until the change to the amount of fertilization corresponding to the detected traveling speed becomes large. Therefore, the amount of fertilization increases more than necessary, so that the seedlings may grow poorly due to excessive fertilizer or cause a strong wind. There is a problem that it becomes easy to be coated, and the harvesting work using a harvester such as a combine becomes difficult.

On the other hand, there is a problem that the required amount of fertilizer is not supplied, so that the seedlings become poor in growth due to the lack of fertilizer, and the quality and yield of the crops are lowered.

In addition, when the rotational speed of the electric motor is high, vibration from the electric motor is transmitted to the fertilizer and shaken, which increases or decreases the amount of fertilizer discharged from the tank (reservation hopper) or the take-out roll, thereby preventing proper fertilizer supply. There is.

And when determining the operation amount of the electric motor corresponding to the increase or decrease of the traveling speed, it is necessary to calculate how many turns to rotate forward or reverse from the current rotational position of the motor. In addition, since the control process of the control device becomes complicated, there is a problem that the structure of the gas itself becomes complicated, resulting in a deterioration in maintainability and high cost.

In order to finely control the rotation speed of the electric motor, a high-performance motor capable of fine stops is required, and since the control device needs to send a high-precision stop signal, there is a problem in that maintainability is further deteriorated.

The problem of the present invention is that the time lag until the fertilizer is supplied to the package after the operation of changing the fertilization amount is small, and a simple configuration that can prevent the occurrence of vibration when the fertilization amount is changed and also can change the fine fertilization amount It is to provide a work vehicle having a fertilizer device.

The said subject is achieved by employ | adopting the following structure.

The invention as set forth in claim 1 is provided with a fertilizer device 5 for supplying fertilizer to packaging on the traveling vehicle body 2, and an adjustment motor 6 for adjusting the amount of fertilizer supplied from the fertilizer device 5. When the regulating motor 6 is operated, the rotating shaft 7 is installed, and the first pivot support shaft 106 is installed to support the spiral shaft 7 and the regulating motor 6 to be rotatable. And installing a connecting pin 49 moving along the spiral shaft 7 by the rotation of the spiral shaft 7, connecting the linking arm 43 to the connecting pin 49, and connecting the linking arm ( The adjusting shaft 42 which rotates in association with the rotation of the 43 is provided, and the adjusting unit 41 which changes the amount of fertilizer supplied from the fertilizer 5 by the rotation of the adjusting shaft 42 is provided. And installing a motor cover 103 having the control motor 6 therein, and absorbing a shock between the motor cover 103 and the traveling vehicle body 2. In that a first elastic member (101) for a working vehicle according to claim.

The invention according to claim 2 is provided with a second pivotal support shaft 48 serving as a pivot point of the linkage arm 43 on the traveling vehicle body 2, and one side of the spiral shaft 7 is interlocked with the linkage arm 43. A balancer 111 on one side of the spiral shaft 7, a regulating motor 6 on the other side of the spiral shaft 7, and by rotating the spiral shaft 7, The moving member 9 which moves along the spiral shaft 7 is provided, the moving amount detecting member 14 which detects the moving amount of the moving member 9 is provided, and based on the detection of the said moving amount detecting member 14, The control device 72 which controls the regulating motor 6 is provided, The working vehicle of Claim 1 characterized by the above-mentioned.

The invention according to claim 3 is provided with a hopper 60 for storing fertilizer to be supplied to the fertilizer 5 in a plurality of tanks, and second expansion and contraction for shock absorption between the hopper 60 and the motor cover 103. It is the work vehicle of Claim 1 or 2 which provided the member 107.

The invention according to claim 4 is a work vehicle according to claim 3, wherein a third elastic member 108 for shock absorption is provided between the balancer 111 and the hopper 60.

Invention of Claim 5 installs the rail 137 in the said hopper 60 along the longitudinal direction of the hopper 60, and makes it possible to rock the sieve network 130 which falls while sifting fertilizer in the left-right direction so that the said rail 137 may be made. And a swinging motor 135 which swings the sieve network 130 on the outer side and the left and right sides of the hopper 60.

The invention according to claim 6 is provided with an engine E in the traveling vehicle body 2, a switching operation lever 141 for disconnecting transmission from the engine E to the fertilizer 5, and the switching. The switching detection member 145 is provided for detecting that the operation lever 141 has been operated to the electric "connection" position, and the swinging motor 135 operates when the switching detection member 145 is in a detection state. It is a work vehicle of Claim 5 characterized by the above-mentioned.

According to the invention described in claim 1, by incorporating the regulating motor 6 into the motor cover 103, the operator can be prevented from contacting the regulating motor 6.

In addition, by providing the first elastic member 101 between the motor cover 103 and the traveling vehicle body 2, it is possible to absorb vibrations generated when the regulating motor 6 operates at a high speed and continuously. The amount of fertilizer is prevented from fluctuating due to vibration of the fertilizer, so that an appropriate amount of fertilizer is supplied.

Then, the spiral shaft 7 is rotated by operating the regulating motor 6 to change the fertilization amount by installing the first pivotal support shaft 106 which rotatably supports the spiral shaft 7 and the regulating motor 6. In this case, the adjustment motor 6 may be rotated about the first pivotal support shaft 106.

According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the balancer 111 is provided on one side of the spiral shaft 7 and the control motor 6 is provided on the other side of the spiral shaft 7. Even if the regulating motor 6 operates at a high speed, it is possible to prevent the occurrence of vibration by the weight of the balancer 111, so that the supply amount of the fertilizer is prevented from being fluctuated by the vibration of the regulating motor 6 so that an appropriate amount of fertilizer is supplied. do.

According to the invention as set forth in claim 3, in addition to the effect of the invention as set forth in claim 1 or 2, the regulating motor 6 is fast and continuous by providing a second expansion and contracting member 107 between the hopper 60 and the motor cover 103. Since it is possible to absorb the vibration generated when operating in the operation, the supply amount of the fertilizer is prevented from fluctuating according to the vibration of the regulating motor 6, so that an appropriate amount of fertilizer is supplied.

Moreover, since the 2nd elastic member 107 is arrange | positioned between the hopper 60 and the motor cover 103, it is arrange | positioned in the position which avoided the location which obstructs the movement of the operator who performs work, and a worker works on the traveling vehicle body 2, too. It becomes easy to do it and improves work efficiency.

According to the invention of claim 4, in addition to the effect of the invention of claim 3, a third expansion and contraction member 108 is provided between the balancer 111 and the motor cover 103, so that An appropriate amount of fertilizer is supplied as it can further prevent fluctuations in supply.

According to the invention of Claim 5, in addition to the effect of the invention of Claim 3, the sieve network 130 is provided by installing the sieve network 130 which falls while sifting fertilizer, and the oscillation motor 135 which oscillates this sieve network 130. Since the lump of fertilizer can be shaken from side to side to form powder and then dropped, the lump of fertilizer is prevented from falling from inside the hopper 60, so that fertilizer is reliably supplied to the crop to prevent crop growth. Can be.

According to the invention described in claim 6, in addition to the effect of the invention described in claim 5, when the fertilization operation is started, the swinging motor 135 can be operated, thereby preventing the mass of fertilizer from falling into the hopper 60 during the operation. As a result, the fertilizer is reliably supplied to the crops to prevent poor growth of the crops.

1 is a side view of a seedling planter.
2 is a plan view of the seedling planting machine.
It is a front view of the front wheel part of a seedling planting machine.
It is a right side view of the fertilizer of the seedling planting apparatus.
It is a left side view which shows the operating mechanism of the fertilizer of the seedling planting apparatus.
6 is a block diagram of a control device for seedling planters.
7 is a side view of another embodiment of the movement amount detecting member.
8 is an enlarged view illustrating main parts of the movement amount detecting member of FIG. 7.
9 is a plan view of the movement amount detecting member of FIG. 7.
10 is a side view of another embodiment of a fertilizing device.
11 is a side view of another embodiment of a fertilizing device.
12 is a side view of another embodiment of a fertilizing device.
It is a rear view of the hopper part of the fertilizing apparatus of the seedling planting apparatus of FIG.
14 is a plan view of the hopper portion of FIG. 13.
It is a figure which shows the cross-sectional shape of the stirring blade provided in a hopper.
16 is a rear view of another embodiment of the hopper portion of the fertilizing device.
17 is a top view of another embodiment of the hopper portion of FIG. 16.
18 is a side view of another embodiment of the hopper portion of FIG. 16.
19 is a rear view of another embodiment of the hopper portion of the fertilizing device.

This embodiment is demonstrated based on drawing.

In this embodiment, although the seedling planting machine which connected the seedling planting apparatus 4 as a work apparatus is described, you may use the work vehicle provided with the tillage device, the seeding apparatus, the mower, the ditch excavator, etc.

FIG. 1 shows a side view of a seedling planting machine of an embodiment of the present invention, FIG. 2 shows a plan view of the seedling planting machine of FIG. 1, and FIG. 3 shows a front view of the front wheel part of the seedling planting machine of FIG. 1. . 4 shows the right side view of the fertilizing apparatus of the seedling planting apparatus of FIG. 1, FIG. 5 shows the operating mechanism (left side surface) of the fertilizing apparatus of the seedling planting apparatus of FIG. 1, and FIG. The block diagram of the control apparatus which controls the application amount of a seedling planting machine is shown.

7 is a side view of another embodiment of the stroke sensor unit, and FIG. 9 is a plan view of the stroke sensor unit of FIG. 7.

The seedling planting machine 1 installs the lifting link 3 of the parallel link structure in the rear side of the traveling body 2 in which the traveling apparatuses 10 and 11 which drive the pavement are installed, The seedling planting apparatus 4 of the multi-row planting form which plant | plants a seedling on the surface is connected, and the fertilizer apparatus 5 which fertilizes the soil surface which plant | plants a seedling in the rear part of the traveling vehicle body 2 is mounted.

The traveling vehicle body 2 is a four-wheeled riding mode in which a pair of left and right front wheels 10 and rear wheels 11 are arranged, the mission case 12 is disposed in the front portion, and the driver's seat 31 is disposed on the upper portion thereof. The front side of the steering post which has the steering wheel 34 has the front cover 32 incorporating various operation mechanisms, and the center mascot 33 etc. which are an index of a straight run are provided.

Furthermore, the preliminary seedling mounting base 38 which provides the floor step 35 on the traveling vehicle body 2, and mounts seedlings for replenishment protruding laterally than the base on both the left and right sides of the traveling vehicle body 2, Install it. An operation panel 39 for operating the seedling planting machine 1 is provided on the upper surface of the front cover 32.

The seedling planting apparatus 4 arranges the seedling tank 51 which mounts seedlings, and sends them to a planting part, and the planting apparatus 52 which isolate | separates and maintains the seedlings pulled out from the said seedling tank 51, and plantes on a soil surface. Thus, a total of 6 trillion planting configurations are used in which 2 trillions are planted for each of the center float 55 and the side float 56 on the soil surface flattened by the center float 55 and the side float 56.

In addition, although the structure of this case is demonstrated as the rice transplanter of a 6-group planting as mentioned above, there may be more planting assistants than this at least.

The center float 55 and the side float 56 are respectively grounded to the central portion and the left and right sides of the lower part of the seedling planting apparatus 4, and are moved up and down by swinging the center float 55 while leveling the soil surface. Lifting control for keeping the seedling planting depth constant is performed by expanding and contracting the cylinder 53 and raising and lowering the seedling planting apparatus 4 to a height relative to the desired land.

The fertilizer 5 has a hopper 60 for storing fertilizer in the upper portion, and withdrawal roll for receiving the fertilizer flowed out from the supply port 60c (Fig. 4) of the lower portion (bottom) of the hopper 60. Is pivotally mounted in the drawer case 20 with the drawer shaft 21. The supply port 60c is provided with a shutter 40, an adjusting portion 41 for adjusting the fertilization amount, and the like.

In addition, the shutter 40 is a manual operation, and when it slides to the supply port 60c side, the supply port 60c is closed.

The amount of fertilization supplied from the hopper 60 to the take-out roll is adjusted by changing the opening degree of the supply port 60c by the adjustment unit 41.

In addition, the center float 55 and the side of the fertilizer guide 63 which forms a fertilizer groove near the seedling planting position by the said seedling planting apparatus 52 ahead of the planting action position of the seedling planting apparatus 52 are provided. It is attached to the float 56 part. The fertilizer drawn out by the draw roll is guided by the fertilizing hose 62 and discharged to the fertilizing groove portion of the soil to be fertilized.

The drawing amount by the drawing roll is adjusted by operating the regulating motor 6. By operating the regulating motor 6 to move the adjusting part 41 and adjusting the opening degree of the supply port 60c, the amount of fertilization fed out from the hopper 60 to the take-out roll, that is, the take-out amount by the take-out roll is adjusted. .

When the seedling planter 1 runs on the pavement, the fertilizer in the hopper 60 passes from the fertilization guide 63 to the center float 55 and the side through the withdrawal roll and fertilizing hose 62 in the withdrawal case 20. It is discharged to the soil in front of the float 56. The seedling planting apparatus 52 planted the seedling which the seedling planting apparatus 52 mounted in the seedling tank 51 in the soil which the said center float 55 and the side float 56 slide and stopped.

The adjusting motor 6 is provided with a spiral shaft 7 which rotates when the regulating motor 6 is operated, and the moving member 9 is provided with the spiral shaft 7 indicating a target of the fertilizing amount. When the spiral shaft 7 rotates, the moving member 9 moves along the spiral of the spiral shaft 7.

As described above, the regulating motor 6 operates the adjusting part 41 to adjust the amount of the draw by the draw roll and to move the moving member 9. The movement amount of the moving member 9 is detected by the movement amount detecting member 14 such as a stroke sensor.

The adjusting section 41 has a rack (not shown) on its lower surface to engage the pinion of the adjusting shaft 42 with the rack. Therefore, when the adjusting shaft 42 is rotated, the adjusting portion 41 is linearly moved by the rack and pinion to adjust the position of the adjusting portion 41. The adjusting shaft 42 for moving the adjusting part 41 is the spiral shaft 7, the linkage arm 43, the link rod 44, the link arm 45, and the gears when the regulating motor 6 operates. 46, 47) and the like is rotated to adjust the opening degree of the control unit 41. The linkage arm 43 is rotatable around the second pivotal support shaft 48 on the rear frame 19, and at the top of the linkage arm 43 the tip of the spiral shaft 7 is connected to the connecting pin 49. It fits so that up-and-down rotation is possible.

The movement of the moving member 9 is detected by the movement amount detecting member 14, and this detection amount is transmitted to the control device 72. The control device 72 drives the control motor 6 when the amount of fertilizer is sent out, i.e., the amount of fertilizer, is calculated from the amount of movement of the moving member 9 detected by the movement amount detecting member 14, and the amount of fertilizer reaches a predetermined value. To stop the adjustment of the fertilization amount.

Conventionally, when the rotational speed of the electric motor is slow, there is a problem that the time lag until the application amount corresponding to the detected traveling speed is changed. Moreover, in order to control the rotation speed of an electric motor finely, there also existed a problem of high price and a maintenance fall.

However, in the structure which determines the stop position of the control motor 6 from the movement distance of the movement member 9 which the movement amount detection member 14 detects, if the application amount changes, the distance change of the movement amount detection member 14 is grasped | ascertained. Since the stop signal of the regulating motor 6 is issued, the number of parts and the control process are simplified, so that the maintenance can be improved with a simple configuration, and it is easy to cope with minute changes, so that more appropriate amount of fertilization can be performed. have.

According to this configuration, the amount of fertilization by the adjusting unit 41 is detected by the moving amount detecting member 14 based on the moving amount of the moving member 9, so that even if a small amount of operation amount (for example, in millimeters), the adjustment motor ( 6), it is possible to control the uniformity of fertilizer concentration and fertilization accuracy of the packaging to improve the stability and quality of crop growth.

Furthermore, the spiral shaft 7 and the moving member 9 which are moved by the spiral shaft 7 are installed in the sensor case 16 equipped with the indicator 15 so that the moving position of the moving member 9 can be adjusted. You may make it possible to see from the outside of the sensor case 16.

With the above configuration, the operator can see the moving position of the moving member 9, the distance between the moving member 9 and the moving amount detecting member 14, and the like from the outside of the sensor case 16.

As shown in FIG. 4, the fertilizer 5 is arranged along the take-out shaft 21 with a take-out roll having a predetermined volume of take-out grooves on the rotational circumferential surface thereof, and is formed on the upper side of the hopper 60. The fertilizer made of powder material or granule material is supplied to each withdrawal case 20 from the bottom), and the fertilizer is rotated while drawing the fertilizer to be fed into the withdrawal groove formed in the withdrawal roll. have.

The drawing shaft 21 is interlocked and rotated through the gears 22 and 23 of the linking shaft 27 interlocked from the PTO shaft 36 to which the driving force is supplied from the mission case 12 to rotate. ) And the rear wheels 11 are electrically rotated with a constant interlocking ratio, and the fertilizer is taken out and fertilized by a drawing roll. In addition, a fertilization transmission mechanism (not shown) is provided near the rear frame 19 to supply the driving force of the PTO shaft 36 to the fertilization apparatus 5 so that the interlock shaft 27 rotates from the fertilization transmission mechanism. Driving force is supplied.

Before and after each said drawing case 20, the blowing duct 25 and the fertilizer collection duct 28 are arrange | positioned along a horizontal direction. Then, the blower 29 is installed at one end of the blower duct 25 and the fertilizer recovery duct 28, and the blower duct 25 or the return duct is operated by switching a switching valve on the wind supplied from the blower 29. It is set as the structure by which the wind which conveys a fertilizer to 28 is blown.

At the lower part of the drawing case 20, the outlet port 26 is directed toward the fertilizer container 24 to receive the fertilizer drawn out by the drawing roll and conveyed to the fertilizing hose 62 by blowing blown from the blower duct 25. I make it a constitution. Each fertilizing hose 62 is configured to jet the fertilizer into the grooves formed in the fertilizing guide 63 by directing the discharge port at the lower end of the fertilizing hose 62 to the fertilizing guide 63.

The supply port 60c at the lower end of the hopper 60 communicates with the upper portion of the takeout case 20 so that the fertilizer in the hopper 60 flows into the takeout roll. The fertilizing amount adjusting mechanism K for adjusting the fertilizing amount is provided with an openable shutter 40 provided in the supply port 60c and an adjusting part 41 which is movable in the front-rear direction provided below the shutter 40. , Other adjusting shaft 42, spiral shaft 7, linkage arm 43, link rod 44, link arm 45 and gears 46 and 47, second pivot support shaft 48, connection The feed amount of the fertilizer to the take-out roll by adjusting the opening degree of the supply port 60c by moving the control part 41 by the drive of the said control motor 6 by the pin 49, the control motor 6, etc. The configuration to adjust.

Interlocking mechanisms such as a link mechanism or a gear mechanism for interlocking the adjustment shaft 42 from the control motor 6, the movement amount detecting member 14, the spiral shaft 7, the sensor case 16, and the spiral shaft 7 Is disposed outside the withdrawal case 20 incorporating the withdrawal roll, and the sensor case 16, the control motor 6, and the like are disposed in front of the withdrawal case 20 and the driver's seat 31. It is easy to see the position of the moving member 9 in the 15 and the sensor case 16.

Then, the moving member 9 which is screwed back and forth by screwing the boss portion 59 (FIG. 7) to the spiral shaft 7 is connected to the laser oscillator 98 positioned in the control motor 6 side in FIG. The laser beam is irradiated with laser light to detect the movement position. The light receiving plate 99 is provided on the moving member 9 side, and in this example, the moving amount detecting member 14 is constituted by the laser oscillator 98 and the light receiving plate 99.

7, 8, and 9, the cylinder 69 fixed at the predetermined position on the sensor case 16 side and the spindle 70 integrally on the moving member 9 side. It can also be set as the structure of the movement amount detection member 14 which fits and contracts and detects the movement amount of the movement member 9 by expansion and contraction.

In addition, although the laser oscillator 98 is provided in the control motor 6 side in FIG. 5, the laser oscillator 98 is provided in the opposite side of the control motor 6 in FIG. The other basic configuration is the same.

According to FIG. 7, the laser oscillator 98 is provided in the side part of the said cylinder 69, and the light receiving plate 99 of a laser is attached to the spindle 70. As shown in FIG. 8 is a figure of the movement amount detection member 14 part of FIG. When the moving amount detecting member 14, which is a distance detecting device, is used as the laser displacement sensor type, when the light receiving plate 99 moves, the spot radiated from the laser oscillator 98 changes so that the distance can be calculated from this change amount.

In FIG. 9, when the light receiving plate 99 moves to the control motor 6 side, it shows with a dashed-dotted line. The light receiving plate 99 is slidably moved by the rotation of the spiral shaft 7 and moves until the distance between the laser oscillator 98 and the light receiving plate 99 becomes constant.

By using the laser light for detecting the distance, the change in distance can be detected instantaneously, so that it is possible to cope with a slight change (in millimeters) and to adjust the minute application amount, thereby improving the application accuracy.

10 shows a side view of another embodiment of a fertilizing device.

The fertilizer 5 shown in FIG. 10 is a structure in which the 1st elastic member 101 was provided in the fertilizer 5 shown in FIG. 7, and it is the same as that of FIG. In addition, needless to say, the following configuration is also applied to the configuration of the fertilizer 5 shown in FIG.

Since the regulating motor 6 is disposed immediately behind the driver's seat 31, the control motor 6 is embedded in the motor cover 103 to prevent the operator sitting in the driver's seat 31 from directly contacting the driver. In addition, the engine cover 104 supporting the driver's seat 31 and the rear step 105 behind the driver's seat 31 are provided on the traveling vehicle body 2 with the engine E built therein.

And according to this structure, as shown in FIG. 10, the 1st elastic member 101 for shock absorption is provided between the rear step 105 and the motor cover 103, The said 1st elastic member 101 is provided. By absorbing the vibration generated when the regulating motor 6 operates at high speed and continuously, the fertilizer discharge amount of the hopper 60 or the take-out roll caused by the vibration of the regulating motor 6 is prevented from being disturbed. An amount of fertilizer is supplied. The adjustment motor 6 and the movement amount detecting member 14 rotate in the vertical direction about the first pivotal support shaft 106 provided on the hopper 60 side.

The first elastic member 101 is composed of a spring, a suspension, or the like, the upper part of which is fixed to the motor cover 103 side and the lower part of the rear step 105 side by fixing members such as screws, bolts or nuts. do. In the example shown, it is provided in front of the 1st rotation support shaft 106.

The fertilizer 5 shown in FIG. 10 has a fertilization amount adjusting mechanism K that is long forward and backward by a spiral shaft 7 or the like having a longitudinal direction in the front-rear direction, and in particular, removes the lower part of the control motor 6 with a sense of weight. The fertilizing apparatus 5 is stabilized as a whole by being supported by the 1 elastic member 101.

14 shows a side view of another embodiment of a fertilizing device.

The fertilizer 5 shown in FIG. 14 is the structure which provided the 2nd elastic member 107 in the front part of the hopper 60 shown in FIG. 7, Since it is the same as FIG.

Vibration generated when the motor cover 103 is operated at high speed and continuously by the second elastic member 107 provided between the motor cover 103 of the regulating motor 6 and the side wall 60a of the hopper 60. Since it can absorb, the fertilizer discharge amount of the hopper 60 or the extraction roll by the vibration of the control motor 6 is prevented from being disturbed, and an appropriate amount of fertilizer is supplied.

In addition, when the second elastic member 107 is provided on the rear side of the traveling vehicle body 2 side such as between the rear step 105 and the motor cover 103, the operator may apply the fertilizer 5 on the rear step 105. ) And seedling planting device 4 may interfere with the operation of supplying fertilizers, drugs, seedlings and the like. However, by studying the position of the second elastic member 107, the effective use of the space can be achieved, and the operator can open the space on the rear step 105 of the rear part of the traveling vehicle body 2 so that the operator can It becomes easy to work on the travel body 2, and work efficiency improves.

The second elastic member 107 is composed of a damper, a cylinder, or the like, and has an upper part fixed to the hopper 60 side and a lower part fixed to the motor cover 103 side by fixing members such as screws, bolts and nuts. .

The fertilizer 5 shown in FIG. 11 has a fertilization amount adjusting mechanism K which is long forward and backward by a spiral shaft 7 or the like having a longitudinal direction in the front-rear direction. The fertilizing apparatus 5 is stabilized as a whole by being supported by the elastic member 107. Further, when the first elastic member 101 shown in Fig. 10 is provided, the control motor 6 can be supported from the lower part and the upper part of the control motor 6, so that the stability is further improved.

7, 10, and 11, a ball screw-type balancer 111 having a heavy weight is provided at the rear end of the spiral shaft 7, and is moved in the front-rear direction along the spiral shaft 7. When movable, the balancer 111 functions as a balance weight. The balancer 111 is composed of a handling portion 111a and a balance weight portion 111b and is made of metal such as copper or iron. When the balancer 111 is seen from the first pivotal support shaft 106, the balancer 111 is provided on the side opposite to the side where the regulating motor 6 is installed (rear of the first pivotal support shaft 106). Since the weight and balance can be maintained, the stability of the fertilizer 5 is improved and fertilization accuracy is improved.

According to this structure, even if the adjustment motor 6 operates at high speed when the application amount is increased or decreased, the weight of the balancer 111 can prevent generation of vibration due to the operation of the adjustment motor 6. Thus, the fertilizer discharge amount of the hopper 60 or the take-out roll due to the vibration of the control motor 6 is prevented from being disturbed, so that an appropriate amount of fertilizer is supplied.

In addition, by holding the handling portion 111a of the balancer 111 and manually rotating the balancer 111, the position of the balancer 111 can be changed so that the operating position as the balance weight can be easily adjusted. The generation of vibration can be prevented and the fertilizer can be supplied more appropriately.

In addition, since there is no need to provide a balance weight other than the balancer 111, a simple configuration is achieved and low cost is achieved.

12 shows a side view of another embodiment of a fertilizing device.

The fertilizer 5 shown in FIG. 12 is the structure which provided the 3rd elastic member 108 in the back part of the hopper 60 shown in FIG. 7, and it is the same as FIG. 7, except that description is abbreviate | omitted.

The third elastic member 108 provided between the rear end of the spiral shaft 7 and the side wall 60a of the hopper 60 absorbs vibration generated when the motor cover 103 is operated at high speed and continuously. Since it is possible to prevent the fertilizer discharge amount of the hopper 60 or the extraction roll caused by the vibration of the control motor 6 from being disturbed, an appropriate amount of fertilizer is supplied.

In addition, the third elastic member 108 is formed of a damper, a cylinder, or the like in the same manner as the second elastic member 107 provided between the motor cover 103 and the side wall 60a of the hopper 60 shown in FIG. The upper part is fixed to the hopper 60 side and the lower part to the balancer 111 side by fixing members such as screws, bolts and nuts.

Although not shown, a cover is provided around the balance weight portion 111b of the balancer 111, the cover is supported by the balancer 111 by a bearing, and the third elastic member 108 is disposed on the cover. ) Is installed.

The third elastic member 108 provided between the balancer 111 and the hopper 60 prevents the fertilizer discharge amount of the hopper 60 or the extraction roll from being disturbed by the vibration of the additional control motor 6, thereby preventing an appropriate amount. Fertilizer is supplied. In addition, when the position of the balancer 111 is changed, the third elastic member 108 moves to the one-dot chain line position and is shortened in the illustrated example.

Moreover, the 2nd expansion-and-contraction member 107 provided ahead of the 1st rotation support shaft 106 shown in FIG. 11, and the 3rd expansion-contraction installation provided behind the 1st rotation support shaft 106 shown in FIG. It is good also as a structure which provides both the members 108. FIG.

With the above configuration, the fertilizing amount adjusting mechanism K of the fertilizing device 5 is supported from both front and rear of the first pivotal support shaft 106, so that the stability of the fertilizing device 5 is improved and fertilizing accuracy is improved.

FIG. 13 shows a view of part of the hopper 60 of the fertilizer 5. FIG. 13 shows a rear view of the hopper 60 portion, and FIG. 14 shows a plan view of the hopper 60 portion.

Further, a plurality of inclined portions 60b are formed in the lower portion of the hopper 60 having a longitudinal direction in the lateral direction, and a supply port 60c is formed at the lower end of each of the inclined portions 60b. . Therefore, the fertilizer in the said hopper 60 is sent out from the inclination part 60b through the supply port 60c to the drawout roll below.

In the inclined portion 60b of the hopper 60, the fertilizer is easy to collect, and the fertilizer needs to be collected from the outside of the hopper 60 by hitting from the outside of the hopper 60 to prevent the fertilizer from hardening to its own weight or moisture. There is. In addition, when the fertilizer is solidified and hardened in the hopper 60 to form a layer, a situation occurs in which the fertilizer is not fertilized despite the presence of the fertilizer in the hopper 60.

However, as shown in FIG. 13, when the stirring blade (plate may be sufficient) 117 which stirs the fertilizer in the said hopper 60 is provided, the inclination part 60b of the hopper 60 by the said stirring blade 117 is provided. ), The fertilizer can be stirred so that the fertilizer is hardened to form a layer, so that the amount of fertilizer discharged to the take-out roll is kept constant. Therefore, the supply amount of fertilizer is stabilized and the growth of crops is good.

In addition, even though there is a fertilizer in the hopper 60, the problem of not fertilizing is also eliminated, so that fertilization is not performed and crops can be prevented from growing poor due to lack of fertilizer.

As shown in FIG. 13, the stirring motor 119 which is a drive actuator is provided in the side of the hopper 60, and the rotation drive shaft 115 which penetrates each inclination part 60b is driven by the stirring motor 119. As shown in FIG. do. When the rotary drive shaft 115 is rotated by attaching the chess blade 117 to the outer circumferential surface of the rotary drive shaft 115, the chess blade 117 is also rotated to hit the fertilizer in the inclined portion 60b of the hopper 60 to stir. .

In addition, the cross-sectional shape of the chess blade 117 may be a star shape, a cross shape (it also includes an X-shape), etc. as shown in FIG.

Since the stirring motor 119 for driving the rotary drive shaft 115 is disposed outside the side wall 60a of the hopper 60, a fertilizer, a medicine, a seedling, or the like can be placed on the hopper 60. Work can be performed near (60). Therefore, work efficiency is improved.

In addition, when the upper end of the stirring motor 119 is installed at a position lower than the upper end of the hopper 60, the hopper 60 can be used widely, so that things such as fertilizers, drugs, and seedlings can be placed. Is improved.

And when the rotation drive shaft 115 of the said stirring motor 119 is set in the lower part of each inclination part 60b, since the amount of fertilizer which can be stirred by stirring a fertilizer in a narrow space becomes small, it is work | worked. The problem of poor efficiency can arise.

When the rotary drive shaft 115 is installed on the upper portion of each inclined portion 60b, for example, the upper end portion (inclined tip end portion) S of each inclined portion 60b, a large amount of flows down to the inclined portion of the hopper 60. Since the fertilizer can be stirred efficiently in a large space, the above problem is solved.

14 shows a view of another embodiment of the hopper 60 portion of the fertilizer 5.

FIG. 16 shows a rear view of the portion of the hopper 60, FIG. 17 shows a plan view of the portion of the hopper 60, and FIG. 18 shows a side view (simplified view showing some cross-section) of the portion of the hopper 60. do.

When a lump of fertilizer is dropped into the hopper 60, it becomes easy to be clogged by the inclined portion 60b. As shown in FIG. 14, a sieve network 130 may be provided in the hopper 60. As shown in FIG. The sieve network 130 is installed at the upper end S of each inclined portion 60b of the hopper 60 and is mounted to the sliding shaft 132 sliding in the left and right directions by the driving of the swinging motor 135. For example, positioning of the network portion 130a by the positioning pins 139 can simplify positioning and separation, thereby improving maintenance.

In addition, when the rails 137 are installed at both front and rear ends of the top of each inclined portion 60b of the hopper 60, the sieve network 130 may slide on the rails 137 from side to side.

Since the fertilizer in the hopper 60 is sieved by the sieve net 130 swinging from side to side, the inclined portion 60b is prevented from being blocked by the fertilizer and the fertilizer is surely supplied to the package. In addition, the network operation switch 140 is installed in the driver's seat 31, and the swinging network 135 is driven by driving the swinging motor 135 by disconnecting the network operation switch 140.

If the vibration biased to the sieve network 130 is continuously applied for a long time, the shape of the mesh is changed by twisting or twisting. In order to normally achieve the role as the sieve network 130, an even mesh is required, and the above deformation may not occur.

Therefore, as shown in FIG. 16, when the sliding shaft 132 passes through the center portion of the mesh portion 130a in the front-rear direction, the force applied during sliding can be approximately the same as before and after, so that deformation of the mesh portion 130a is prevented. Thus, the fertilizer flow guide effect is maintained for a long time.

19 shows a rear view of another embodiment of the hopper 60 portion of the fertilizer 5.

The screen 130 shown in FIG. 16 may be configured to cooperate with a planting clutch (not shown). From the planting clutch case (not shown) in the planting clutch case (not shown), the engine power is transmitted into the planting transmission case 142 of the seedling planting unit 4 via the planting transmission shaft 138 (FIG. ) And the planting apparatus 5 operate.

The disconnection of the planting clutch is performed by operating the switching operation lever 141 (FIG. 2) provided near the driver's seat 31. Therefore, when the screen 130 swings from side to side at the time of inputting the switching operation lever 141, sticking and retention of fertilizer during planting operations can be prevented.

As shown in FIG. 19, the switching detection member 145 is provided in the switching operation lever 141 to detect the disconnection of the switching operation lever 141 to control the swing motor 135 of the body network 130. The switching detection member 145 may be provided at a position to contact when the switching operation lever 141 is operated.

There is also a system in which a potentiometer is provided at the base of the switching operation lever 141 to detect an angle change. Accordingly, the switching operation lever 141 can prevent the fertilizer from hardening during the connection state, that is, during the planting operation. In addition, at this time, vibration caused by the rotation of the chess blade 117 is generated, but fertilizer is agglomerated, so that fertilization is not performed properly, and a non fertilizer section occurs, thereby preventing problems in the growth of seedlings.

On the other hand, when the seedling planting machine 1 is turned, that is, when the blocking operation lever 141 is blocked, a configuration in which the body mesh 130 swings from side to side can also be considered.

Since the switching operation lever 141 is automatically cut off when the seedling planting machine 1 is turned, it is possible to prevent the sticking or dwelling of the fertilizer during the planting operation by rocking the sieve network 130 in a short time during the turning.

In addition, in the seedling planting apparatus 1 of this embodiment, when turning the handle 34 more than a predetermined angle at the time of turning, it determines that it is turning operation, and has a function which raises the planting part 4 automatically, At this time, a planting clutch is interrupted | blocked. As a result, the switching operation lever 141 is automatically operated in the blocked state.

The above is a structure in which the fertilizer in the hopper 60 is stirred only in the state where the switching operation lever 141 does not perform a planting operation | blocking state. When planting is stopped, fertilization stops in conjunction with the fertilizer, so that the vibration generated by the work is not applied to the fertilizer 5 so that the fertilizer is easily hardened.

In order to prevent this, it is possible to prevent the fertilizer from agglomerating by turning the chess blade 117. In addition, during the planting operation, there is an advantage that it is difficult for the operator to feel uncomfortable because no extra vibration is generated and the operating time is short, and thus power consumption is reduced.

The present invention is not limited to the seedling planting unit connecting the seedling planting apparatus, and can also be used for a tracker and the like connected to the tilling apparatus.

2: driving body 5: fertilizer
6: regulating motor 7: spiral shaft
9: moving member 14: moving detecting member
41: adjusting section 42: adjusting shaft
43: linkage arm 48: second pivot support shaft
49: connecting pin 60: hopper
72: control device 101: first elastic member
106: first pivot support shaft 107: second elastic member
108: third elastic member 111: balancer
130: reticular 135: rocking motor
137: rail 141: switching operation lever
145: switching detection member

Claims (6)

A fertilizer 5 for supplying fertilizer to the packaging is installed in the traveling vehicle body 2, an regulating motor 6 for adjusting the amount of fertilizer supplied from the fertilizer 5 is provided, and the regulating motor 6 ) Works, install the rotating spiral shaft (7),
A first pivotal support shaft 106 for rotatably supporting the spiral shaft 7 and the regulating motor 6,
The connecting pin 49 is installed to move along the spiral shaft 7 by the rotation of the spiral shaft 7, the linking arm 43 is connected to the connecting pin 49, and the linking arm 43. The adjustment shaft 42 which rotates in association with the rotation of the crankshaft, and the adjustment part 41 which changes the amount of fertilizer supplied from the fertilizer 5 by the rotation of the adjustment shaft 42, ,
A motor cover 103 incorporating the control motor 6 is provided, and a first elastic member 101 for shock absorption is provided between the motor cover 103 and the traveling vehicle body 2. Working vehicle. The method of claim 1,
A second pivotal support shaft 48 serving as a pivot point of the linkage arm 43 is provided on the traveling vehicle body 2, one side of the spiral shaft 7 is connected to the linkage arm 43, and the The balancer 111 is provided on one side of the spiral shaft 7, and the regulating motor 6 is installed on the other side of the spiral shaft 7,
The moving member 9 which moves along the spiral shaft 7 by the rotation of the spiral shaft 7 is provided, and the moving amount detecting member 14 which detects the moving amount of the moving member 9 is provided, And a control device (72) for controlling the regulating motor (6) on the basis of the detection of the movement amount detecting member (14). 3. The method according to claim 1 or 2,
A hopper 60 for storing fertilizers supplied in a plurality of tanks is installed in the fertilizer 5, and a second elastic member 107 for shock absorption is provided between the hopper 60 and the motor cover 103. A work vehicle characterized by one. The method of claim 3, wherein
The work vehicle characterized in that a third elastic member (108) for shock absorption is provided between the balancer (111) and the hopper (60). The method of claim 3, wherein
A rail 137 is installed in the hopper 60 along the longitudinal direction of the hopper 60, and a sieve screen 130 for dropping while sieving fertilizer is installed on the rail 137 so as to swing in the left and right directions. A work vehicle, characterized in that a rocking motor (135) for oscillating the body network (130) is provided on the outer side and the left and right sides of the hopper (60). The method of claim 5, wherein
An engine E is provided on the traveling vehicle body 2, and a switching operation lever 141 is provided for disconnecting transmission from the engine E to the fertilizer 5. The switching operation lever 141 is provided. The work characterized in that a switching detecting member 145 is provided which detects the operation of the electric "connection" position, and the swinging motor 135 operates when the switching detecting member 145 is in a detection state. vehicle.

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