JP2002218808A - Machine for digging out welsh onion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a machine for digging out Welsh onions, which has a simple structure and can prevent the staining of Welsh onions with soil by easy adjustments. SOLUTION: This machine for digging out the Welsh onions comprises a main frame body 1, the first rotation shaft 11 disposed in the main frame body 1 and used for transmitting the power of an engine through the first speed change means 9, the second rotation shaft 13 connected to the first rotation shaft 11 through the second speed change means 12, a plow 31 rotatably disposed on the main frame body 1, a shaking means connected to the second rotation shaft 13 and used for shaking the plow 31 in a state capable of changing the shaken width of the plow, a plow angle-setting means 36 for setting the inclination angle of the plow 31, a fork 41 rotatably connected to the rear portion of the plow 31, a shaking means for shaking the fork in a state capable of changing the width of the shaking, and a fork angle-setting means 42 for setting the inclination angle of the fork 41.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leek excavator cultivated on a ridge, and more particularly to a leek excavator that leaves leek in the soil.

[0002]

2. Description of the Related Art FIG. 7 is a sectional view of a leek extracting apparatus shown in Japanese Utility Model Laid-Open No. 3-65418, and FIG. 8 is a plan view. In the figure, reference numeral 1 denotes a frame body towed by a tractor 61, 51
Denotes an arm provided on the frame main body 1, 52 arms 51
It is a blade plate attached to. Behind the blade plate 52, a plurality of guide rods 52a having different lengths are provided. 53 is a vibration frame provided behind the blade plate 52,
Of the power transmission shaft 10 rotated by the PTO shaft of the gear box 9, the chain 54, the crank 55, and the connecting rod 56.
Vibrated by being converted to vertical movement via. 57 is the vibration frame 5
With the swing center axis 3, the vibration frame 53 is swung about the center axis 57. Reference numeral 58 denotes a slide plate for sending the leek N raised by the blade plate 52 onto the vibration frame 53, and reference numeral 59 denotes a discharge panel excluding the soil at the root of the ridge E.

In this configuration, when the frame 1 is advanced by being pulled by the tractor 61, it enters below the roots of the green onions N grown on the ridges E of the blades 52, lifts the green onions N together with the soil, and lifts the green onions N together. The green onion N lifted up by moving forward 52 moves to the rear guide rod 52a, and is fallen in one direction by the guide rod 52. The fallen green onion N slides on the slide plate 58 and is sent to the vibration frame 7. After the soil is shaken off from the green onion N by vibration, it is placed on the ridge E sideways. Thereafter, the green onions N are collected manually.

[0004] Further, there is another conventional excavator in which both sides of a ridge on which a crop is cultivated are cut to leave the crop, and the crop is later taken out.

[0005]

However, in the above-mentioned conventional green onion extracting machine, the extracted green onion N is placed sideways on the ridge E, so that the green onion N is soiled with soil. There was a problem that had to be done. Further, the rocking is not performed while the blade plate 52 is fixed, and the resistance when the blade plate 52 enters below the root portion of the green onion N growing on the ridge E is large, and the inclination angle of the vibration frame 53 of the blade plate 52 is increased. However, since the vibration width of the vibration frame 53 is not variable, there is a problem that the inclination angle of the blade plate 52 and the vibration width of the vibration frame 53 cannot be changed according to the soil on which the green onion is cultivated.

In the excavator which keeps the crop on the ridge, the soil remains fixed on the root of the crop. In particular, in the case of leek, the root is entangled, so that the soil is not fixed. However, there is a problem that it cannot be easily extracted.

[0007] The present invention has been made to solve the above-described problems, and has a simple configuration and simple adjustment.
An object of the present invention is to provide a leek excavator that can prevent leek from being soiled with soil and that can be easily extracted.

[0008]

A leek excavator according to the present invention includes a frame body, a first rotating shaft provided on the frame body and transmitting power of a motor through a first transmission means, A second rotating means connected to the first rotating shaft via a second transmission means, a plow rotatably provided on the frame main body, and a plow connected to the second rotating shaft; Swinging means for swingably changing the swinging width, plow angle setting means for setting an inclination angle of the plow, a fork rotatably connected to a rear portion of the plow, and the first rotation shaft And a fork angle setting means for setting the inclination angle of the fork, the first and second transmission means being provided with a swinging number of the plow. , While setting the frequency of the fork
By changing the inclination angle of the plow and the fork, the swing width of the plow, and the amplitude of the fork, the soil is only softened, and the green onion remains in the soil.

Further, the second transmission means includes a first sprocket connected to a first rotating shaft connected to the speed reducer,
It comprises a second sprocket connected to a second rotating shaft and a chain connecting the first and second sprockets.

The oscillating means and the vibrating means each comprise an eccentric coupling.

Further, the plow angle setting means includes a plow swing arm provided on the plow, and a variable length section which is rotatably connected to the tip of the swing arm and the swing means and changes the length. It consists of

Further, the fork angle setting means comprises a length variable portion which is rotatably connected to the fork and the vibration means, and which changes the length.

The plow is formed in a plate-like and substantially rectangular front long side in the traveling direction, and has a blade at its front end and a trapezoidal portion on one short side. Arm that rises at an obtuse angle and has a blade at the front end and a frame body that extends from the other short side to face the side and has a blade at the front end. Unit.

[0014]

FIG. 1 is a perspective view of a leek excavator showing an embodiment of the present invention, FIG. 2 is an exploded perspective view, FIG. 3 is a side view of a plow of the leek excavator, FIG. FIG. 5 is an exploded perspective view of the eccentric coupling of the leek excavator, and FIG. 6 is an operation explanatory view.

1 to 5, 1 is a frame body, 2 is a mounting frame, 3 is a mounting portion, 4 is a bracket, 7 is a resistance plate, 9 is a speed reducer which is a first transmission means, and 10 is a PTO shaft of a tractor. , A power transmission shaft connected to a prime mover of a towing vehicle (not shown), 11 is a first rotation shaft connected to the speed reducer 9, 12 is a second transmission means, and is connected to the first rotation shaft 11. The connected first sprocket 15 and second rotating shaft 1
3 comprises a second sprocket 16 connected to 3 and a chain 17. 8 is a shaft mounting arm, 14 is mounted on the shaft mounting arm 8, and the first and second rotating shafts 11, 13
This is a bearing that supports.

Numeral 18 denotes an eccentric coupling which is a vibration means fixed to the first rotary shaft 11, and has an eccentric flange 18
a and an eccentric flange 18b with a shaft. 2
Reference numeral 0 denotes an eccentric coupling which is a swinging means fixed to the second rotating shaft 13, and is constituted by an eccentric flange 20a and an eccentric flange 20b with a shaft. The details of the eccentric coupling 18 are shown in FIG. 5, and the eccentric flange 18a and the eccentric flange 18b with the shaft are fixed by bolts by changing the positions of the holes 19a and 19b, and the rotation centers of the first rotary shaft 11 and the shaft 18c are changed. Change the distance and set the amount of eccentricity.
The same applies to the eccentric coupling 20.

As shown in FIG. 3, reference numeral 31 denotes a plow, which is formed in a plate-like and substantially rectangular shape at the front long side in the traveling direction and has a front side 31b having a blade at the front end, and one short side. A side portion 31c that rises at an obtuse angle to the trapezoidal portion on the side and has a blade portion at a front end, and the side 31c from the other short side
, A connecting arm portion 31a for connecting to a frame body having a blade portion at a front end portion, and a reinforcing rim 31f;
It is composed of a support hole 31d. 29 is a plow swing arm having a fulcrum pin 30; 27 is an arm shaft; the connecting arm 31a of the plow 31 and the plow swing arm 29 and the arm shaft 27 are integrally fixed by bolts or the like; Is mounted on the bearing 28 of the shaft mounting arm 8.

Numeral 36 denotes a plow angle setting means, which is an adjusting screw 40 which is a variable length part for changing the length, a bearing mounting plate 38 having a bearing 39 mounted on one end of the adjusting screw 40, and a screw on the adjusting screw 40. It is composed of fulcrum bosses 37 that match. Then, the bearing 39 of the plow angle setting means 36 is connected to the shaft-equipped flange 20 b of the swing coupling 20, and the fulcrum boss 37 is connected to the plow swing arm 29.
Of the fulcrum pins 30.

Reference numeral 41 denotes a fork connected to the rear of the plow 31. As shown in FIGS. 2 and 3, the fork base 32 is connected to the hole 31d of the plow 31 by a fulcrum pin 35 and attached to the fork base 32. A fork 34. The fork base 32 includes a base body 32a, a hole 32,
The base support arm 32b having the letter c, and a hole 32d into which the fulcrum pin 35 is inserted.

Reference numeral 42 denotes a fork angle setting means, which includes a link portion 43 which is a length variable portion for changing the length, and a link portion 43.
Bearing mounting plate 45 fixed to one end and bearing 44 mounted
And a fulcrum boss 47 fixed to the other end. Then, the bearing 44 of the fork angle setting means 42 is connected to the shaft-equipped flange 18 b of the eccentric coupling 18, and the fulcrum boss 47 is connected to the hole 32 c of the support arm 32 b of the fork base 32 by the fulcrum pin 49. 23 is a wheel, 26
Is a stand.

Next, the operation will be described with reference to FIGS. FIG. 6A shows a state in which the plow 31 is first inserted into the ridge.
(B) shows a state in which only the soil in the part where the green onion N is cultivated is softened and the green onion is left in the soil. The frequency of the swing of the plow 31 and the frequency of the fork 41 are determined by the speed reducer 9 which is the first transmission means connected to the prime mover of the towing vehicle and the second speed reducer.
Is determined by the rotation of the first rotating shaft 11 rotated through the speed change means 12, and the basic values of the swinging frequency of the plow 31 and the frequency of the fork 34 are determined by the power transmission shaft 10 connected to the prime mover of the towing vehicle.
And the speed of the reduction gear 9. Furthermore, the first and second sprockets 15, 1
By changing the tooth ratio of No. 6, the number of rotations of the plow 31 is set by changing the number of rotations of the second rotary shaft 13.

The swing width of the plow 31 changes the distance between the respective rotation centers of the eccentric flange 20a and the shaft eccentric flange 20b of the eccentric coupling 20 which is the oscillating means fixed to the second rotating shaft 13. To determine the amount of eccentricity. The amplitude of the fork 34 is similarly set by the eccentric coupling 18.

The initial angle of the plow 31 is set by changing the length of the plow angle setting means 36 with the adjusting screw 40. At this time, as shown in FIG. 6A, the setting is made such that the plow 31 gets into the soil. The initial angle of the fork 41 is set to be substantially horizontal by changing the length by the link 43 of the fork angle setting means 42.

The above setting is made based on the result of actually operating the leek excavator on a trial basis. Next, the mounting frame 2 is connected to a towing vehicle such as a tractor, and the power transmission shaft 10 is connected to a prime mover of the towing vehicle to advance the leek excavator. The plow 31 swings about the arm shaft 27 supported by the bearing 28 of the main body frame 1, and the fork 41
While being oscillated about a fulcrum pin 35 connecting the plow 2 and the plow 31, it is inserted toward the root of the green onion N as shown in FIG. At this time, since the plow 31 swings, the resistance of the soil is small.

When the plow 31 further moves forward, as shown in FIG. 6B, the plow 31 is inserted below the root, and the rocking of the plow 31 and the vibration of the fork 41 cause the root of the green onion N and the surrounding soil. To make it softer. At this time, the fork 41 advances while swinging as well as vibrating. In addition, the plow 31 uniformly softens the soil on both sides of the root of the green onion N by the front side 31b, the side 31c, and the connecting arm 31a provided to face the side 31c. Further, the soil fixed to the green onion N is removed by the swing of the plow 31 and the swing and vibration of the fork 41. Then, the leek N is not dug out, remains standing in the ridged soil, and can be easily extracted, and the leek N is later extracted from the soil.

In this embodiment, the operation of softening the ridged soil and leaving the green onions in the soil has been described. However, the configuration shown in this embodiment allows the number of swings of the plow 31 to be increased. By changing the frequency of the fork 41, the inclination angle of the plow 31 and the fork 41, the swing width of the plow 31, and the amplitude of the fork 41, the green onion N can be excavated from the ridged soil.

[0027]

As described above, according to the present invention, the frame main body, the first rotating shaft provided on the frame main body and transmitting the power of the prime mover through the first transmission means,
A second rotating means connected to the first rotating shaft via a second transmission means, a plow rotatably provided on the frame main body, and a plow connected to the second rotating shaft; Swing means for swinging the swing width of the plow variably, plow angle setting means for setting an inclination angle of the plow, a fork rotatably connected to a rear portion of the plow, and the first rotation A vibrating means connected to a shaft for oscillating the vibration width of the fork variably; and a fork angle setting means for setting an inclination angle of the fork, wherein the plow swings by first and second transmission means. By setting the number and the frequency of the fork, changing the inclination angle of the plow and the fork, the swing width of the plow, and the amplitude of the fork, the leek is left in the soil only by softening the soil. With simple configuration and simple adjustment, Formic is to prevent contamination with soil, it can be easily and extraction.

The second transmission means includes a first sprocket connected to a first rotating shaft connected to the speed reducer;
Since it is composed of the second sprocket connected to the second rotating shaft and the chain connecting the first and second sprockets, the swinging number of the plow can be easily changed with a simple configuration.

The oscillating means and the vibrating means are each composed of an eccentric coupling, and the oscillating width and the amplitude can be easily changed with a simple configuration.

Further, the plow angle setting means includes a plow swing arm provided on the plow, and a variable length section which is rotatably connected to the tip of the swing arm and the swing means and changes the length. , The angle can be easily set with a simple configuration.

The fork angle setting means is rotatably connected to the fork and the vibrating means, and includes a variable length portion for changing the length, so that the angle can be easily set with a simple configuration. it can.

The plow is formed in a plate-like and substantially rectangular front long side in the traveling direction, and has a front end having a blade at the front end and a trapezoidal portion on one short side. Arm that rises at an obtuse angle and has a blade at the front end and a frame body that extends from the other short side to face the side and has a blade at the front end. Part, so that the soil on both sides of the roots of the green onion N is evenly and softly advanced, and the green onions N are not dug out, remain standing in the ridged soil, and can be easily extracted, Leek can be kept clean.

[Brief description of the drawings]

FIG. 1 is a perspective view of a leek excavator showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the leek excavator showing the embodiment of the present invention.

FIG. 3 is a side view of the plow of the leek excavator showing the embodiment of the present invention.

FIG. 4 is a front view of FIG. 3;

FIG. 5 is an exploded perspective view of the eccentric coupling of the leek excavator showing the embodiment of the present invention.

FIG. 6 is an operation explanatory diagram of the leek excavator showing the embodiment of the present invention.

FIG. 7 is a side view of a conventional leek extraction device.

FIG. 8 is a plan view of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame main body 9 1st transmission means 11 1st rotating shaft 12 2nd transmission means 13 2nd rotation means 15 1st sprocket 16 2nd sprocket 17 Chain 18 and 20 Eccentric coupling 29 Plow swing arm DESCRIPTION OF SYMBOLS 31 Plow 31b Front part 31c Side part 31a Connecting arm part 36 Plow angle setting means 40 Adjust screw 41 Hawk and 42 Fork angle setting means 43 Link part

Claims (6)

[Claims] 1. A frame main body, a first rotary shaft provided on the frame main body and transmitting power of a prime mover via a first transmission means, and a first rotary shaft connected to the first rotary shaft via a second transmission means. A second rotating means connected to the frame body, a plow rotatably provided on the frame main body, and a swing connected to the second rotating shaft and swingably swinging the swing width of the plow. Means, a plow angle setting means for setting an inclination angle of the plow, a hawk rotatably connected to a rear part of the plow, and a vibration width of the hawk connected to the first rotating shaft so as to be variable. Vibrating means for vibrating; and fork angle setting means for setting an inclination angle of the fork, wherein the number of swings of the plow and the frequency of the fork are set by first and second transmission means, and The inclination angle of the plow and the fork, the swing width of the plow, A leek excavator, characterized in that by changing the amplitude of each oak, only the soil is softened and the leek remains in the soil. A second sprocket connected to a first rotating shaft connected to a speed reducer; a second sprocket connected to a second rotating shaft; The leek excavator according to claim 1, comprising a chain connecting the first and second sprockets. 3. The leek excavator according to claim 1, wherein the oscillating means and the vibrating means each comprise an eccentric coupling. 4. A plow angle setting means, comprising: a plow swing arm provided on the plow; and a variable length section which is rotatably connected to the tip of the swing arm and the swing means and changes the length. The leek excavator according to any one of claims 1 to 3, comprising: 5. The fork angle setting means according to claim 1, wherein the fork angle setting means comprises a length variable portion which is rotatably connected to the fork and the vibrating means and changes the length. Leek excavator described in Crab. 6. A plow is formed in a plate-like and substantially rectangular front long side portion in the traveling direction, and has a front end portion having a blade portion at a front end portion and a trapezoidal portion on one short side side. Arm that rises at an obtuse angle and has a blade at the front end and a frame body that extends from the other short side to face the side and has a blade at the front end. The leek excavator according to any one of claims 1 to 5, further comprising: